drivers/scsi/lpfc/lpfc_init.c

   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2017-2021 Broadcom. All Rights Reserved. The term *
   5  * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.  *
   6  * Copyright (C) 2004-2016 Emulex.  All rights reserved.           *
   7  * EMULEX and SLI are trademarks of Emulex.                        *
   8  * www.broadcom.com                                                *
   9  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
  10  *                                                                 *
  11  * This program is free software; you can redistribute it and/or   *
  12  * modify it under the terms of version 2 of the GNU General       *
  13  * Public License as published by the Free Software Foundation.    *
  14  * This program is distributed in the hope that it will be useful. *
  15  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  16  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  17  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  18  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  19  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  20  * more details, a copy of which can be found in the file COPYING  *
  21  * included with this package.                                     *
  22  *******************************************************************/
  23
  24 #include <linux/blkdev.h>
  25 #include <linux/delay.h>
  26 #include <linux/dma-mapping.h>
  27 #include <linux/idr.h>
  28 #include <linux/interrupt.h>
  29 #include <linux/module.h>
  30 #include <linux/kthread.h>
  31 #include <linux/pci.h>
  32 #include <linux/spinlock.h>
  33 #include <linux/ctype.h>
  34 #include <linux/aer.h>
  35 #include <linux/slab.h>
  36 #include <linux/firmware.h>
  37 #include <linux/miscdevice.h>
  38 #include <linux/percpu.h>
  39 #include <linux/msi.h>
  40 #include <linux/irq.h>
  41 #include <linux/bitops.h>
  42 #include <linux/crash_dump.h>
  43 #include <linux/cpu.h>
  44 #include <linux/cpuhotplug.h>
  45
  46 #include <scsi/scsi.h>
  47 #include <scsi/scsi_device.h>
  48 #include <scsi/scsi_host.h>
  49 #include <scsi/scsi_transport_fc.h>
  50 #include <scsi/scsi_tcq.h>
  51 #include <scsi/fc/fc_fs.h>
  52
  53 #include "lpfc_hw4.h"
  54 #include "lpfc_hw.h"
  55 #include "lpfc_sli.h"
  56 #include "lpfc_sli4.h"
  57 #include "lpfc_nl.h"
  58 #include "lpfc_disc.h"
  59 #include "lpfc.h"
  60 #include "lpfc_scsi.h"
  61 #include "lpfc_nvme.h"
  62 #include "lpfc_logmsg.h"
  63 #include "lpfc_crtn.h"
  64 #include "lpfc_vport.h"
  65 #include "lpfc_version.h"
  66 #include "lpfc_ids.h"
  67
  68 static enum cpuhp_state lpfc_cpuhp_state;
  69 /* Used when mapping IRQ vectors in a driver centric manner */
  70 static uint32_t lpfc_present_cpu;
  71
  72 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba);
  73 static void lpfc_cpuhp_remove(struct lpfc_hba *phba);
  74 static void lpfc_cpuhp_add(struct lpfc_hba *phba);
  75 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  76 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  77 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  78 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  79 static int lpfc_setup_endian_order(struct lpfc_hba *);
  80 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  81 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  82 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
  83 static void lpfc_init_sgl_list(struct lpfc_hba *);
  84 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  85 static void lpfc_free_active_sgl(struct lpfc_hba *);
  86 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  87 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  88 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  89 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  90 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  91 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  92 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  93 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  94 static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int);
  95 static void lpfc_setup_bg(struct lpfc_hba *, struct Scsi_Host *);
  96 static int lpfc_sli4_cgn_parm_chg_evt(struct lpfc_hba *);
  97
  98 static struct scsi_transport_template *lpfc_transport_template = NULL;
  99 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
 100 static DEFINE_IDR(lpfc_hba_index);
 101 #define LPFC_NVMET_BUF_POST 254
 102 static int lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport);
 103
 104 /**
 105  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 106  * @phba: pointer to lpfc hba data structure.
 107  *
 108  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 109  * mailbox command. It retrieves the revision information from the HBA and
 110  * collects the Vital Product Data (VPD) about the HBA for preparing the
 111  * configuration of the HBA.
 112  *
 113  * Return codes:
 114  *   0 - success.
 115  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 116  *   Any other value - indicates an error.
 117  **/
 118 int
 119 lpfc_config_port_prep(struct lpfc_hba *phba)
 120 {
 121         lpfc_vpd_t *vp = &phba->vpd;
 122         int i = 0, rc;
 123         LPFC_MBOXQ_t *pmb;
 124         MAILBOX_t *mb;
 125         char *lpfc_vpd_data = NULL;
 126         uint16_t offset = 0;
 127         static char licensed[56] =
 128                     "key unlock for use with gnu public licensed code only\0";
 129         static int init_key = 1;
 130
 131         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 132         if (!pmb) {
 133                 phba->link_state = LPFC_HBA_ERROR;
 134                 return -ENOMEM;
 135         }
 136
 137         mb = &pmb->u.mb;
 138         phba->link_state = LPFC_INIT_MBX_CMDS;
 139
 140         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 141                 if (init_key) {
 142                         uint32_t *ptext = (uint32_t *) licensed;
 143
 144                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 145                                 *ptext = cpu_to_be32(*ptext);
 146                         init_key = 0;
 147                 }
 148
 149                 lpfc_read_nv(phba, pmb);
 150                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 151                         sizeof (mb->un.varRDnvp.rsvd3));
 152                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 153                          sizeof (licensed));
 154
 155                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 156
 157                 if (rc != MBX_SUCCESS) {
 158                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 159                                         "0324 Config Port initialization "
 160                                         "error, mbxCmd x%x READ_NVPARM, "
 161                                         "mbxStatus x%x\n",
 162                                         mb->mbxCommand, mb->mbxStatus);
 163                         mempool_free(pmb, phba->mbox_mem_pool);
 164                         return -ERESTART;
 165                 }
 166                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 167                        sizeof(phba->wwnn));
 168                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 169                        sizeof(phba->wwpn));
 170         }
 171
 172         /*
 173          * Clear all option bits except LPFC_SLI3_BG_ENABLED,
 174          * which was already set in lpfc_get_cfgparam()
 175          */
 176         phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
 177
 178         /* Setup and issue mailbox READ REV command */
 179         lpfc_read_rev(phba, pmb);
 180         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 181         if (rc != MBX_SUCCESS) {
 182                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 183                                 "0439 Adapter failed to init, mbxCmd x%x "
 184                                 "READ_REV, mbxStatus x%x\n",
 185                                 mb->mbxCommand, mb->mbxStatus);
 186                 mempool_free( pmb, phba->mbox_mem_pool);
 187                 return -ERESTART;
 188         }
 189
 190
 191         /*
 192          * The value of rr must be 1 since the driver set the cv field to 1.
 193          * This setting requires the FW to set all revision fields.
 194          */
 195         if (mb->un.varRdRev.rr == 0) {
 196                 vp->rev.rBit = 0;
 197                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 198                                 "0440 Adapter failed to init, READ_REV has "
 199                                 "missing revision information.\n");
 200                 mempool_free(pmb, phba->mbox_mem_pool);
 201                 return -ERESTART;
 202         }
 203
 204         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 205                 mempool_free(pmb, phba->mbox_mem_pool);
 206                 return -EINVAL;
 207         }
 208
 209         /* Save information as VPD data */
 210         vp->rev.rBit = 1;
 211         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 212         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 213         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 214         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 215         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 216         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 217         vp->rev.smRev = mb->un.varRdRev.smRev;
 218         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 219         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 220         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 221         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 222         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 223         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 224         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 225         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 226
 227         /* If the sli feature level is less then 9, we must
 228          * tear down all RPIs and VPIs on link down if NPIV
 229          * is enabled.
 230          */
 231         if (vp->rev.feaLevelHigh < 9)
 232                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 233
 234         if (lpfc_is_LC_HBA(phba->pcidev->device))
 235                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 236                                                 sizeof (phba->RandomData));
 237
 238         /* Get adapter VPD information */
 239         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 240         if (!lpfc_vpd_data)
 241                 goto out_free_mbox;
 242         do {
 243                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 244                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 245
 246                 if (rc != MBX_SUCCESS) {
 247                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 248                                         "0441 VPD not present on adapter, "
 249                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 250                                         mb->mbxCommand, mb->mbxStatus);
 251                         mb->un.varDmp.word_cnt = 0;
 252                 }
 253                 /* dump mem may return a zero when finished or we got a
 254                  * mailbox error, either way we are done.
 255                  */
 256                 if (mb->un.varDmp.word_cnt == 0)
 257                         break;
 258
 259                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 260                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 261                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 262                                       lpfc_vpd_data + offset,
 263                                       mb->un.varDmp.word_cnt);
 264                 offset += mb->un.varDmp.word_cnt;
 265         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 266
 267         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 268
 269         kfree(lpfc_vpd_data);
 270 out_free_mbox:
 271         mempool_free(pmb, phba->mbox_mem_pool);
 272         return 0;
 273 }
 274
 275 /**
 276  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 277  * @phba: pointer to lpfc hba data structure.
 278  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 279  *
 280  * This is the completion handler for driver's configuring asynchronous event
 281  * mailbox command to the device. If the mailbox command returns successfully,
 282  * it will set internal async event support flag to 1; otherwise, it will
 283  * set internal async event support flag to 0.
 284  **/
 285 static void
 286 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 287 {
 288         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 289                 phba->temp_sensor_support = 1;
 290         else
 291                 phba->temp_sensor_support = 0;
 292         mempool_free(pmboxq, phba->mbox_mem_pool);
 293         return;
 294 }
 295
 296 /**
 297  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 298  * @phba: pointer to lpfc hba data structure.
 299  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 300  *
 301  * This is the completion handler for dump mailbox command for getting
 302  * wake up parameters. When this command complete, the response contain
 303  * Option rom version of the HBA. This function translate the version number
 304  * into a human readable string and store it in OptionROMVersion.
 305  **/
 306 static void
 307 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 308 {
 309         struct prog_id *prg;
 310         uint32_t prog_id_word;
 311         char dist = ' ';
 312         /* character array used for decoding dist type. */
 313         char dist_char[] = "nabx";
 314
 315         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 316                 mempool_free(pmboxq, phba->mbox_mem_pool);
 317                 return;
 318         }
 319
 320         prg = (struct prog_id *) &prog_id_word;
 321
 322         /* word 7 contain option rom version */
 323         prog_id_word = pmboxq->u.mb.un.varWords[7];
 324
 325         /* Decode the Option rom version word to a readable string */
 326         if (prg->dist < 4)
 327                 dist = dist_char[prg->dist];
 328
 329         if ((prg->dist == 3) && (prg->num == 0))
 330                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 331                         prg->ver, prg->rev, prg->lev);
 332         else
 333                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 334                         prg->ver, prg->rev, prg->lev,
 335                         dist, prg->num);
 336         mempool_free(pmboxq, phba->mbox_mem_pool);
 337         return;
 338 }
 339
 340 /**
 341  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 342  *      cfg_soft_wwnn, cfg_soft_wwpn
 343  * @vport: pointer to lpfc vport data structure.
 344  *
 345  *
 346  * Return codes
 347  *   None.
 348  **/
 349 void
 350 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 351 {
 352         uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
 353         u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
 354
 355         /* If the soft name exists then update it using the service params */
 356         if (vport->phba->cfg_soft_wwnn)
 357                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 358                            vport->fc_sparam.nodeName.u.wwn);
 359         if (vport->phba->cfg_soft_wwpn)
 360                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 361                            vport->fc_sparam.portName.u.wwn);
 362
 363         /*
 364          * If the name is empty or there exists a soft name
 365          * then copy the service params name, otherwise use the fc name
 366          */
 367         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 368                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 369                         sizeof(struct lpfc_name));
 370         else
 371                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 372                         sizeof(struct lpfc_name));
 373
 374         /*
 375          * If the port name has changed, then set the Param changes flag
 376          * to unreg the login
 377          */
 378         if (vport->fc_portname.u.wwn[0] != 0 &&
 379                 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
 380                         sizeof(struct lpfc_name)))
 381                 vport->vport_flag |= FAWWPN_PARAM_CHG;
 382
 383         if (vport->fc_portname.u.wwn[0] == 0 ||
 384             vport->phba->cfg_soft_wwpn ||
 385             (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
 386             vport->vport_flag & FAWWPN_SET) {
 387                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 388                         sizeof(struct lpfc_name));
 389                 vport->vport_flag &= ~FAWWPN_SET;
 390                 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
 391                         vport->vport_flag |= FAWWPN_SET;
 392         }
 393         else
 394                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 395                         sizeof(struct lpfc_name));
 396 }
 397
 398 /**
 399  * lpfc_config_port_post - Perform lpfc initialization after config port
 400  * @phba: pointer to lpfc hba data structure.
 401  *
 402  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 403  * command call. It performs all internal resource and state setups on the
 404  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 405  * ELS ring timers, etc.
 406  *
 407  * Return codes
 408  *   0 - success.
 409  *   Any other value - error.
 410  **/
 411 int
 412 lpfc_config_port_post(struct lpfc_hba *phba)
 413 {
 414         struct lpfc_vport *vport = phba->pport;
 415         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 416         LPFC_MBOXQ_t *pmb;
 417         MAILBOX_t *mb;
 418         struct lpfc_dmabuf *mp;
 419         struct lpfc_sli *psli = &phba->sli;
 420         uint32_t status, timeout;
 421         int i, j;
 422         int rc;
 423
 424         spin_lock_irq(&phba->hbalock);
 425         /*
 426          * If the Config port completed correctly the HBA is not
 427          * over heated any more.
 428          */
 429         if (phba->over_temp_state == HBA_OVER_TEMP)
 430                 phba->over_temp_state = HBA_NORMAL_TEMP;
 431         spin_unlock_irq(&phba->hbalock);
 432
 433         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 434         if (!pmb) {
 435                 phba->link_state = LPFC_HBA_ERROR;
 436                 return -ENOMEM;
 437         }
 438         mb = &pmb->u.mb;
 439
 440         /* Get login parameters for NID.  */
 441         rc = lpfc_read_sparam(phba, pmb, 0);
 442         if (rc) {
 443                 mempool_free(pmb, phba->mbox_mem_pool);
 444                 return -ENOMEM;
 445         }
 446
 447         pmb->vport = vport;
 448         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 449                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 450                                 "0448 Adapter failed init, mbxCmd x%x "
 451                                 "READ_SPARM mbxStatus x%x\n",
 452                                 mb->mbxCommand, mb->mbxStatus);
 453                 phba->link_state = LPFC_HBA_ERROR;
 454                 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 455                 mempool_free(pmb, phba->mbox_mem_pool);
 456                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 457                 kfree(mp);
 458                 return -EIO;
 459         }
 460
 461         mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 462
 463         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 464         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 465         kfree(mp);
 466         pmb->ctx_buf = NULL;
 467         lpfc_update_vport_wwn(vport);
 468
 469         /* Update the fc_host data structures with new wwn. */
 470         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 471         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 472         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 473
 474         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 475         /* This should be consolidated into parse_vpd ? - mr */
 476         if (phba->SerialNumber[0] == 0) {
 477                 uint8_t *outptr;
 478
 479                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 480                 for (i = 0; i < 12; i++) {
 481                         status = *outptr++;
 482                         j = ((status & 0xf0) >> 4);
 483                         if (j <= 9)
 484                                 phba->SerialNumber[i] =
 485                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 486                         else
 487                                 phba->SerialNumber[i] =
 488                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 489                         i++;
 490                         j = (status & 0xf);
 491                         if (j <= 9)
 492                                 phba->SerialNumber[i] =
 493                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 494                         else
 495                                 phba->SerialNumber[i] =
 496                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 497                 }
 498         }
 499
 500         lpfc_read_config(phba, pmb);
 501         pmb->vport = vport;
 502         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 503                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 504                                 "0453 Adapter failed to init, mbxCmd x%x "
 505                                 "READ_CONFIG, mbxStatus x%x\n",
 506                                 mb->mbxCommand, mb->mbxStatus);
 507                 phba->link_state = LPFC_HBA_ERROR;
 508                 mempool_free( pmb, phba->mbox_mem_pool);
 509                 return -EIO;
 510         }
 511
 512         /* Check if the port is disabled */
 513         lpfc_sli_read_link_ste(phba);
 514
 515         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 516         if (phba->cfg_hba_queue_depth > mb->un.varRdConfig.max_xri) {
 517                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 518                                 "3359 HBA queue depth changed from %d to %d\n",
 519                                 phba->cfg_hba_queue_depth,
 520                                 mb->un.varRdConfig.max_xri);
 521                 phba->cfg_hba_queue_depth = mb->un.varRdConfig.max_xri;
 522         }
 523
 524         phba->lmt = mb->un.varRdConfig.lmt;
 525
 526         /* Get the default values for Model Name and Description */
 527         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 528
 529         phba->link_state = LPFC_LINK_DOWN;
 530
 531         /* Only process IOCBs on ELS ring till hba_state is READY */
 532         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 533                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 534         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 535                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 536
 537         /* Post receive buffers for desired rings */
 538         if (phba->sli_rev != 3)
 539                 lpfc_post_rcv_buf(phba);
 540
 541         /*
 542          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 543          */
 544         if (phba->intr_type == MSIX) {
 545                 rc = lpfc_config_msi(phba, pmb);
 546                 if (rc) {
 547                         mempool_free(pmb, phba->mbox_mem_pool);
 548                         return -EIO;
 549                 }
 550                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 551                 if (rc != MBX_SUCCESS) {
 552                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 553                                         "0352 Config MSI mailbox command "
 554                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 555                                         pmb->u.mb.mbxCommand,
 556                                         pmb->u.mb.mbxStatus);
 557                         mempool_free(pmb, phba->mbox_mem_pool);
 558                         return -EIO;
 559                 }
 560         }
 561
 562         spin_lock_irq(&phba->hbalock);
 563         /* Initialize ERATT handling flag */
 564         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 565
 566         /* Enable appropriate host interrupts */
 567         if (lpfc_readl(phba->HCregaddr, &status)) {
 568                 spin_unlock_irq(&phba->hbalock);
 569                 return -EIO;
 570         }
 571         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 572         if (psli->num_rings > 0)
 573                 status |= HC_R0INT_ENA;
 574         if (psli->num_rings > 1)
 575                 status |= HC_R1INT_ENA;
 576         if (psli->num_rings > 2)
 577                 status |= HC_R2INT_ENA;
 578         if (psli->num_rings > 3)
 579                 status |= HC_R3INT_ENA;
 580
 581         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 582             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 583                 status &= ~(HC_R0INT_ENA);
 584
 585         writel(status, phba->HCregaddr);
 586         readl(phba->HCregaddr); /* flush */
 587         spin_unlock_irq(&phba->hbalock);
 588
 589         /* Set up ring-0 (ELS) timer */
 590         timeout = phba->fc_ratov * 2;
 591         mod_timer(&vport->els_tmofunc,
 592                   jiffies + msecs_to_jiffies(1000 * timeout));
 593         /* Set up heart beat (HB) timer */
 594         mod_timer(&phba->hb_tmofunc,
 595                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 596         phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
 597         phba->last_completion_time = jiffies;
 598         /* Set up error attention (ERATT) polling timer */
 599         mod_timer(&phba->eratt_poll,
 600                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 601
 602         if (phba->hba_flag & LINK_DISABLED) {
 603                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 604                                 "2598 Adapter Link is disabled.\n");
 605                 lpfc_down_link(phba, pmb);
 606                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 607                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 608                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 609                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 610                                         "2599 Adapter failed to issue DOWN_LINK"
 611                                         " mbox command rc 0x%x\n", rc);
 612
 613                         mempool_free(pmb, phba->mbox_mem_pool);
 614                         return -EIO;
 615                 }
 616         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 617                 mempool_free(pmb, phba->mbox_mem_pool);
 618                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 619                 if (rc)
 620                         return rc;
 621         }
 622         /* MBOX buffer will be freed in mbox compl */
 623         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 624         if (!pmb) {
 625                 phba->link_state = LPFC_HBA_ERROR;
 626                 return -ENOMEM;
 627         }
 628
 629         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 630         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 631         pmb->vport = phba->pport;
 632         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 633
 634         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 635                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 636                                 "0456 Adapter failed to issue "
 637                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 638                                 rc);
 639                 mempool_free(pmb, phba->mbox_mem_pool);
 640         }
 641
 642         /* Get Option rom version */
 643         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 644         if (!pmb) {
 645                 phba->link_state = LPFC_HBA_ERROR;
 646                 return -ENOMEM;
 647         }
 648
 649         lpfc_dump_wakeup_param(phba, pmb);
 650         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 651         pmb->vport = phba->pport;
 652         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 653
 654         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 655                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 656                                 "0435 Adapter failed "
 657                                 "to get Option ROM version status x%x\n", rc);
 658                 mempool_free(pmb, phba->mbox_mem_pool);
 659         }
 660
 661         return 0;
 662 }
 663
 664 /**
 665  * lpfc_hba_init_link - Initialize the FC link
 666  * @phba: pointer to lpfc hba data structure.
 667  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 668  *
 669  * This routine will issue the INIT_LINK mailbox command call.
 670  * It is available to other drivers through the lpfc_hba data
 671  * structure for use as a delayed link up mechanism with the
 672  * module parameter lpfc_suppress_link_up.
 673  *
 674  * Return code
 675  *              0 - success
 676  *              Any other value - error
 677  **/
 678 static int
 679 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 680 {
 681         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 682 }
 683
 684 /**
 685  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 686  * @phba: pointer to lpfc hba data structure.
 687  * @fc_topology: desired fc topology.
 688  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 689  *
 690  * This routine will issue the INIT_LINK mailbox command call.
 691  * It is available to other drivers through the lpfc_hba data
 692  * structure for use as a delayed link up mechanism with the
 693  * module parameter lpfc_suppress_link_up.
 694  *
 695  * Return code
 696  *              0 - success
 697  *              Any other value - error
 698  **/
 699 int
 700 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 701                                uint32_t flag)
 702 {
 703         struct lpfc_vport *vport = phba->pport;
 704         LPFC_MBOXQ_t *pmb;
 705         MAILBOX_t *mb;
 706         int rc;
 707
 708         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 709         if (!pmb) {
 710                 phba->link_state = LPFC_HBA_ERROR;
 711                 return -ENOMEM;
 712         }
 713         mb = &pmb->u.mb;
 714         pmb->vport = vport;
 715
 716         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 717             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 718              !(phba->lmt & LMT_1Gb)) ||
 719             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 720              !(phba->lmt & LMT_2Gb)) ||
 721             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 722              !(phba->lmt & LMT_4Gb)) ||
 723             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 724              !(phba->lmt & LMT_8Gb)) ||
 725             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 726              !(phba->lmt & LMT_10Gb)) ||
 727             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 728              !(phba->lmt & LMT_16Gb)) ||
 729             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 730              !(phba->lmt & LMT_32Gb)) ||
 731             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
 732              !(phba->lmt & LMT_64Gb))) {
 733                 /* Reset link speed to auto */
 734                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 735                                 "1302 Invalid speed for this board:%d "
 736                                 "Reset link speed to auto.\n",
 737                                 phba->cfg_link_speed);
 738                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 739         }
 740         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 741         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 742         if (phba->sli_rev < LPFC_SLI_REV4)
 743                 lpfc_set_loopback_flag(phba);
 744         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 745         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 746                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 747                                 "0498 Adapter failed to init, mbxCmd x%x "
 748                                 "INIT_LINK, mbxStatus x%x\n",
 749                                 mb->mbxCommand, mb->mbxStatus);
 750                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 751                         /* Clear all interrupt enable conditions */
 752                         writel(0, phba->HCregaddr);
 753                         readl(phba->HCregaddr); /* flush */
 754                         /* Clear all pending interrupts */
 755                         writel(0xffffffff, phba->HAregaddr);
 756                         readl(phba->HAregaddr); /* flush */
 757                 }
 758                 phba->link_state = LPFC_HBA_ERROR;
 759                 if (rc != MBX_BUSY || flag == MBX_POLL)
 760                         mempool_free(pmb, phba->mbox_mem_pool);
 761                 return -EIO;
 762         }
 763         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 764         if (flag == MBX_POLL)
 765                 mempool_free(pmb, phba->mbox_mem_pool);
 766
 767         return 0;
 768 }
 769
 770 /**
 771  * lpfc_hba_down_link - this routine downs the FC link
 772  * @phba: pointer to lpfc hba data structure.
 773  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 774  *
 775  * This routine will issue the DOWN_LINK mailbox command call.
 776  * It is available to other drivers through the lpfc_hba data
 777  * structure for use to stop the link.
 778  *
 779  * Return code
 780  *              0 - success
 781  *              Any other value - error
 782  **/
 783 static int
 784 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 785 {
 786         LPFC_MBOXQ_t *pmb;
 787         int rc;
 788
 789         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 790         if (!pmb) {
 791                 phba->link_state = LPFC_HBA_ERROR;
 792                 return -ENOMEM;
 793         }
 794
 795         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 796                         "0491 Adapter Link is disabled.\n");
 797         lpfc_down_link(phba, pmb);
 798         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 799         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 800         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 801                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 802                                 "2522 Adapter failed to issue DOWN_LINK"
 803                                 " mbox command rc 0x%x\n", rc);
 804
 805                 mempool_free(pmb, phba->mbox_mem_pool);
 806                 return -EIO;
 807         }
 808         if (flag == MBX_POLL)
 809                 mempool_free(pmb, phba->mbox_mem_pool);
 810
 811         return 0;
 812 }
 813
 814 /**
 815  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 816  * @phba: pointer to lpfc HBA data structure.
 817  *
 818  * This routine will do LPFC uninitialization before the HBA is reset when
 819  * bringing down the SLI Layer.
 820  *
 821  * Return codes
 822  *   0 - success.
 823  *   Any other value - error.
 824  **/
 825 int
 826 lpfc_hba_down_prep(struct lpfc_hba *phba)
 827 {
 828         struct lpfc_vport **vports;
 829         int i;
 830
 831         if (phba->sli_rev <= LPFC_SLI_REV3) {
 832                 /* Disable interrupts */
 833                 writel(0, phba->HCregaddr);
 834                 readl(phba->HCregaddr); /* flush */
 835         }
 836
 837         if (phba->pport->load_flag & FC_UNLOADING)
 838                 lpfc_cleanup_discovery_resources(phba->pport);
 839         else {
 840                 vports = lpfc_create_vport_work_array(phba);
 841                 if (vports != NULL)
 842                         for (i = 0; i <= phba->max_vports &&
 843                                 vports[i] != NULL; i++)
 844                                 lpfc_cleanup_discovery_resources(vports[i]);
 845                 lpfc_destroy_vport_work_array(phba, vports);
 846         }
 847         return 0;
 848 }
 849
 850 /**
 851  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 852  * rspiocb which got deferred
 853  *
 854  * @phba: pointer to lpfc HBA data structure.
 855  *
 856  * This routine will cleanup completed slow path events after HBA is reset
 857  * when bringing down the SLI Layer.
 858  *
 859  *
 860  * Return codes
 861  *   void.
 862  **/
 863 static void
 864 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 865 {
 866         struct lpfc_iocbq *rspiocbq;
 867         struct hbq_dmabuf *dmabuf;
 868         struct lpfc_cq_event *cq_event;
 869
 870         spin_lock_irq(&phba->hbalock);
 871         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 872         spin_unlock_irq(&phba->hbalock);
 873
 874         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 875                 /* Get the response iocb from the head of work queue */
 876                 spin_lock_irq(&phba->hbalock);
 877                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 878                                  cq_event, struct lpfc_cq_event, list);
 879                 spin_unlock_irq(&phba->hbalock);
 880
 881                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 882                 case CQE_CODE_COMPL_WQE:
 883                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 884                                                  cq_event);
 885                         lpfc_sli_release_iocbq(phba, rspiocbq);
 886                         break;
 887                 case CQE_CODE_RECEIVE:
 888                 case CQE_CODE_RECEIVE_V1:
 889                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 890                                               cq_event);
 891                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 892                 }
 893         }
 894 }
 895
 896 /**
 897  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 898  * @phba: pointer to lpfc HBA data structure.
 899  *
 900  * This routine will cleanup posted ELS buffers after the HBA is reset
 901  * when bringing down the SLI Layer.
 902  *
 903  *
 904  * Return codes
 905  *   void.
 906  **/
 907 static void
 908 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 909 {
 910         struct lpfc_sli *psli = &phba->sli;
 911         struct lpfc_sli_ring *pring;
 912         struct lpfc_dmabuf *mp, *next_mp;
 913         LIST_HEAD(buflist);
 914         int count;
 915
 916         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 917                 lpfc_sli_hbqbuf_free_all(phba);
 918         else {
 919                 /* Cleanup preposted buffers on the ELS ring */
 920                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 921                 spin_lock_irq(&phba->hbalock);
 922                 list_splice_init(&pring->postbufq, &buflist);
 923                 spin_unlock_irq(&phba->hbalock);
 924
 925                 count = 0;
 926                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 927                         list_del(&mp->list);
 928                         count++;
 929                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 930                         kfree(mp);
 931                 }
 932
 933                 spin_lock_irq(&phba->hbalock);
 934                 pring->postbufq_cnt -= count;
 935                 spin_unlock_irq(&phba->hbalock);
 936         }
 937 }
 938
 939 /**
 940  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 941  * @phba: pointer to lpfc HBA data structure.
 942  *
 943  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 944  * down the SLI Layer.
 945  *
 946  * Return codes
 947  *   void
 948  **/
 949 static void
 950 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 951 {
 952         struct lpfc_sli *psli = &phba->sli;
 953         struct lpfc_queue *qp = NULL;
 954         struct lpfc_sli_ring *pring;
 955         LIST_HEAD(completions);
 956         int i;
 957         struct lpfc_iocbq *piocb, *next_iocb;
 958
 959         if (phba->sli_rev != LPFC_SLI_REV4) {
 960                 for (i = 0; i < psli->num_rings; i++) {
 961                         pring = &psli->sli3_ring[i];
 962                         spin_lock_irq(&phba->hbalock);
 963                         /* At this point in time the HBA is either reset or DOA
 964                          * Nothing should be on txcmplq as it will
 965                          * NEVER complete.
 966                          */
 967                         list_splice_init(&pring->txcmplq, &completions);
 968                         pring->txcmplq_cnt = 0;
 969                         spin_unlock_irq(&phba->hbalock);
 970
 971                         lpfc_sli_abort_iocb_ring(phba, pring);
 972                 }
 973                 /* Cancel all the IOCBs from the completions list */
 974                 lpfc_sli_cancel_iocbs(phba, &completions,
 975                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 976                 return;
 977         }
 978         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
 979                 pring = qp->pring;
 980                 if (!pring)
 981                         continue;
 982                 spin_lock_irq(&pring->ring_lock);
 983                 list_for_each_entry_safe(piocb, next_iocb,
 984                                          &pring->txcmplq, list)
 985                         piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
 986                 list_splice_init(&pring->txcmplq, &completions);
 987                 pring->txcmplq_cnt = 0;
 988                 spin_unlock_irq(&pring->ring_lock);
 989                 lpfc_sli_abort_iocb_ring(phba, pring);
 990         }
 991         /* Cancel all the IOCBs from the completions list */
 992         lpfc_sli_cancel_iocbs(phba, &completions,
 993                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 994 }
 995
 996 /**
 997  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 998  * @phba: pointer to lpfc HBA data structure.
 999  *
1000  * This routine will do uninitialization after the HBA is reset when bring
1001  * down the SLI Layer.
1002  *
1003  * Return codes
1004  *   0 - success.
1005  *   Any other value - error.
1006  **/
1007 static int
1008 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1009 {
1010         lpfc_hba_free_post_buf(phba);
1011         lpfc_hba_clean_txcmplq(phba);
1012         return 0;
1013 }
1014
1015 /**
1016  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1017  * @phba: pointer to lpfc HBA data structure.
1018  *
1019  * This routine will do uninitialization after the HBA is reset when bring
1020  * down the SLI Layer.
1021  *
1022  * Return codes
1023  *   0 - success.
1024  *   Any other value - error.
1025  **/
1026 static int
1027 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1028 {
1029         struct lpfc_io_buf *psb, *psb_next;
1030         struct lpfc_async_xchg_ctx *ctxp, *ctxp_next;
1031         struct lpfc_sli4_hdw_queue *qp;
1032         LIST_HEAD(aborts);
1033         LIST_HEAD(nvme_aborts);
1034         LIST_HEAD(nvmet_aborts);
1035         struct lpfc_sglq *sglq_entry = NULL;
1036         int cnt, idx;
1037
1038
1039         lpfc_sli_hbqbuf_free_all(phba);
1040         lpfc_hba_clean_txcmplq(phba);
1041
1042         /* At this point in time the HBA is either reset or DOA. Either
1043          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1044          * on the lpfc_els_sgl_list so that it can either be freed if the
1045          * driver is unloading or reposted if the driver is restarting
1046          * the port.
1047          */
1048
1049         /* sgl_list_lock required because worker thread uses this
1050          * list.
1051          */
1052         spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
1053         list_for_each_entry(sglq_entry,
1054                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1055                 sglq_entry->state = SGL_FREED;
1056
1057         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1058                         &phba->sli4_hba.lpfc_els_sgl_list);
1059
1060
1061         spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
1062
1063         /* abts_xxxx_buf_list_lock required because worker thread uses this
1064          * list.
1065          */
1066         spin_lock_irq(&phba->hbalock);
1067         cnt = 0;
1068         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
1069                 qp = &phba->sli4_hba.hdwq[idx];
1070
1071                 spin_lock(&qp->abts_io_buf_list_lock);
1072                 list_splice_init(&qp->lpfc_abts_io_buf_list,
1073                                  &aborts);
1074
1075                 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1076                         psb->pCmd = NULL;
1077                         psb->status = IOSTAT_SUCCESS;
1078                         cnt++;
1079                 }
1080                 spin_lock(&qp->io_buf_list_put_lock);
1081                 list_splice_init(&aborts, &qp->lpfc_io_buf_list_put);
1082                 qp->put_io_bufs += qp->abts_scsi_io_bufs;
1083                 qp->put_io_bufs += qp->abts_nvme_io_bufs;
1084                 qp->abts_scsi_io_bufs = 0;
1085                 qp->abts_nvme_io_bufs = 0;
1086                 spin_unlock(&qp->io_buf_list_put_lock);
1087                 spin_unlock(&qp->abts_io_buf_list_lock);
1088         }
1089         spin_unlock_irq(&phba->hbalock);
1090
1091         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1092                 spin_lock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1093                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1094                                  &nvmet_aborts);
1095                 spin_unlock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1096                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1097                         ctxp->flag &= ~(LPFC_NVME_XBUSY | LPFC_NVME_ABORT_OP);
1098                         lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1099                 }
1100         }
1101
1102         lpfc_sli4_free_sp_events(phba);
1103         return cnt;
1104 }
1105
1106 /**
1107  * lpfc_hba_down_post - Wrapper func for hba down post routine
1108  * @phba: pointer to lpfc HBA data structure.
1109  *
1110  * This routine wraps the actual SLI3 or SLI4 routine for performing
1111  * uninitialization after the HBA is reset when bring down the SLI Layer.
1112  *
1113  * Return codes
1114  *   0 - success.
1115  *   Any other value - error.
1116  **/
1117 int
1118 lpfc_hba_down_post(struct lpfc_hba *phba)
1119 {
1120         return (*phba->lpfc_hba_down_post)(phba);
1121 }
1122
1123 /**
1124  * lpfc_hb_timeout - The HBA-timer timeout handler
1125  * @t: timer context used to obtain the pointer to lpfc hba data structure.
1126  *
1127  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1128  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1129  * work-port-events bitmap and the worker thread is notified. This timeout
1130  * event will be used by the worker thread to invoke the actual timeout
1131  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1132  * be performed in the timeout handler and the HBA timeout event bit shall
1133  * be cleared by the worker thread after it has taken the event bitmap out.
1134  **/
1135 static void
1136 lpfc_hb_timeout(struct timer_list *t)
1137 {
1138         struct lpfc_hba *phba;
1139         uint32_t tmo_posted;
1140         unsigned long iflag;
1141
1142         phba = from_timer(phba, t, hb_tmofunc);
1143
1144         /* Check for heart beat timeout conditions */
1145         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1146         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1147         if (!tmo_posted)
1148                 phba->pport->work_port_events |= WORKER_HB_TMO;
1149         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1150
1151         /* Tell the worker thread there is work to do */
1152         if (!tmo_posted)
1153                 lpfc_worker_wake_up(phba);
1154         return;
1155 }
1156
1157 /**
1158  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1159  * @t: timer context used to obtain the pointer to lpfc hba data structure.
1160  *
1161  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1162  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1163  * work-port-events bitmap and the worker thread is notified. This timeout
1164  * event will be used by the worker thread to invoke the actual timeout
1165  * handler routine, lpfc_rrq_handler. Any periodical operations will
1166  * be performed in the timeout handler and the RRQ timeout event bit shall
1167  * be cleared by the worker thread after it has taken the event bitmap out.
1168  **/
1169 static void
1170 lpfc_rrq_timeout(struct timer_list *t)
1171 {
1172         struct lpfc_hba *phba;
1173         unsigned long iflag;
1174
1175         phba = from_timer(phba, t, rrq_tmr);
1176         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1177         if (!(phba->pport->load_flag & FC_UNLOADING))
1178                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1179         else
1180                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1181         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1182
1183         if (!(phba->pport->load_flag & FC_UNLOADING))
1184                 lpfc_worker_wake_up(phba);
1185 }
1186
1187 /**
1188  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1189  * @phba: pointer to lpfc hba data structure.
1190  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1191  *
1192  * This is the callback function to the lpfc heart-beat mailbox command.
1193  * If configured, the lpfc driver issues the heart-beat mailbox command to
1194  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1195  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1196  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1197  * heart-beat outstanding state. Once the mailbox command comes back and
1198  * no error conditions detected, the heart-beat mailbox command timer is
1199  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1200  * state is cleared for the next heart-beat. If the timer expired with the
1201  * heart-beat outstanding state set, the driver will put the HBA offline.
1202  **/
1203 static void
1204 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1205 {
1206         unsigned long drvr_flag;
1207
1208         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1209         phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
1210         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1211
1212         /* Check and reset heart-beat timer if necessary */
1213         mempool_free(pmboxq, phba->mbox_mem_pool);
1214         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1215                 !(phba->link_state == LPFC_HBA_ERROR) &&
1216                 !(phba->pport->load_flag & FC_UNLOADING))
1217                 mod_timer(&phba->hb_tmofunc,
1218                           jiffies +
1219                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1220         return;
1221 }
1222
1223 /*
1224  * lpfc_idle_stat_delay_work - idle_stat tracking
1225  *
1226  * This routine tracks per-cq idle_stat and determines polling decisions.
1227  *
1228  * Return codes:
1229  *   None
1230  **/
1231 static void
1232 lpfc_idle_stat_delay_work(struct work_struct *work)
1233 {
1234         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1235                                              struct lpfc_hba,
1236                                              idle_stat_delay_work);
1237         struct lpfc_queue *cq;
1238         struct lpfc_sli4_hdw_queue *hdwq;
1239         struct lpfc_idle_stat *idle_stat;
1240         u32 i, idle_percent;
1241         u64 wall, wall_idle, diff_wall, diff_idle, busy_time;
1242
1243         if (phba->pport->load_flag & FC_UNLOADING)
1244                 return;
1245
1246         if (phba->link_state == LPFC_HBA_ERROR ||
1247             phba->pport->fc_flag & FC_OFFLINE_MODE ||
1248             phba->cmf_active_mode != LPFC_CFG_OFF)
1249                 goto requeue;
1250
1251         for_each_present_cpu(i) {
1252                 hdwq = &phba->sli4_hba.hdwq[phba->sli4_hba.cpu_map[i].hdwq];
1253                 cq = hdwq->io_cq;
1254
1255                 /* Skip if we've already handled this cq's primary CPU */
1256                 if (cq->chann != i)
1257                         continue;
1258
1259                 idle_stat = &phba->sli4_hba.idle_stat[i];
1260
1261                 /* get_cpu_idle_time returns values as running counters. Thus,
1262                  * to know the amount for this period, the prior counter values
1263                  * need to be subtracted from the current counter values.
1264                  * From there, the idle time stat can be calculated as a
1265                  * percentage of 100 - the sum of the other consumption times.
1266                  */
1267                 wall_idle = get_cpu_idle_time(i, &wall, 1);
1268                 diff_idle = wall_idle - idle_stat->prev_idle;
1269                 diff_wall = wall - idle_stat->prev_wall;
1270
1271                 if (diff_wall <= diff_idle)
1272                         busy_time = 0;
1273                 else
1274                         busy_time = diff_wall - diff_idle;
1275
1276                 idle_percent = div64_u64(100 * busy_time, diff_wall);
1277                 idle_percent = 100 - idle_percent;
1278
1279                 if (idle_percent < 15)
1280                         cq->poll_mode = LPFC_QUEUE_WORK;
1281                 else
1282                         cq->poll_mode = LPFC_IRQ_POLL;
1283
1284                 idle_stat->prev_idle = wall_idle;
1285                 idle_stat->prev_wall = wall;
1286         }
1287
1288 requeue:
1289         schedule_delayed_work(&phba->idle_stat_delay_work,
1290                               msecs_to_jiffies(LPFC_IDLE_STAT_DELAY));
1291 }
1292
1293 static void
1294 lpfc_hb_eq_delay_work(struct work_struct *work)
1295 {
1296         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1297                                              struct lpfc_hba, eq_delay_work);
1298         struct lpfc_eq_intr_info *eqi, *eqi_new;
1299         struct lpfc_queue *eq, *eq_next;
1300         unsigned char *ena_delay = NULL;
1301         uint32_t usdelay;
1302         int i;
1303
1304         if (!phba->cfg_auto_imax || phba->pport->load_flag & FC_UNLOADING)
1305                 return;
1306
1307         if (phba->link_state == LPFC_HBA_ERROR ||
1308             phba->pport->fc_flag & FC_OFFLINE_MODE)
1309                 goto requeue;
1310
1311         ena_delay = kcalloc(phba->sli4_hba.num_possible_cpu, sizeof(*ena_delay),
1312                             GFP_KERNEL);
1313         if (!ena_delay)
1314                 goto requeue;
1315
1316         for (i = 0; i < phba->cfg_irq_chann; i++) {
1317                 /* Get the EQ corresponding to the IRQ vector */
1318                 eq = phba->sli4_hba.hba_eq_hdl[i].eq;
1319                 if (!eq)
1320                         continue;
1321                 if (eq->q_mode || eq->q_flag & HBA_EQ_DELAY_CHK) {
1322                         eq->q_flag &= ~HBA_EQ_DELAY_CHK;
1323                         ena_delay[eq->last_cpu] = 1;
1324                 }
1325         }
1326
1327         for_each_present_cpu(i) {
1328                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
1329                 if (ena_delay[i]) {
1330                         usdelay = (eqi->icnt >> 10) * LPFC_EQ_DELAY_STEP;
1331                         if (usdelay > LPFC_MAX_AUTO_EQ_DELAY)
1332                                 usdelay = LPFC_MAX_AUTO_EQ_DELAY;
1333                 } else {
1334                         usdelay = 0;
1335                 }
1336
1337                 eqi->icnt = 0;
1338
1339                 list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) {
1340                         if (unlikely(eq->last_cpu != i)) {
1341                                 eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info,
1342                                                       eq->last_cpu);
1343                                 list_move_tail(&eq->cpu_list, &eqi_new->list);
1344                                 continue;
1345                         }
1346                         if (usdelay != eq->q_mode)
1347                                 lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1,
1348                                                          usdelay);
1349                 }
1350         }
1351
1352         kfree(ena_delay);
1353
1354 requeue:
1355         queue_delayed_work(phba->wq, &phba->eq_delay_work,
1356                            msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
1357 }
1358
1359 /**
1360  * lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution
1361  * @phba: pointer to lpfc hba data structure.
1362  *
1363  * For each heartbeat, this routine does some heuristic methods to adjust
1364  * XRI distribution. The goal is to fully utilize free XRIs.
1365  **/
1366 static void lpfc_hb_mxp_handler(struct lpfc_hba *phba)
1367 {
1368         u32 i;
1369         u32 hwq_count;
1370
1371         hwq_count = phba->cfg_hdw_queue;
1372         for (i = 0; i < hwq_count; i++) {
1373                 /* Adjust XRIs in private pool */
1374                 lpfc_adjust_pvt_pool_count(phba, i);
1375
1376                 /* Adjust high watermark */
1377                 lpfc_adjust_high_watermark(phba, i);
1378
1379 #ifdef LPFC_MXP_STAT
1380                 /* Snapshot pbl, pvt and busy count */
1381                 lpfc_snapshot_mxp(phba, i);
1382 #endif
1383         }
1384 }
1385
1386 /**
1387  * lpfc_issue_hb_mbox - Issues heart-beat mailbox command
1388  * @phba: pointer to lpfc hba data structure.
1389  *
1390  * If a HB mbox is not already in progrees, this routine will allocate
1391  * a LPFC_MBOXQ_t, populate it with a MBX_HEARTBEAT (0x31) command,
1392  * and issue it. The HBA_HBEAT_INP flag means the command is in progress.
1393  **/
1394 int
1395 lpfc_issue_hb_mbox(struct lpfc_hba *phba)
1396 {
1397         LPFC_MBOXQ_t *pmboxq;
1398         int retval;
1399
1400         /* Is a Heartbeat mbox already in progress */
1401         if (phba->hba_flag & HBA_HBEAT_INP)
1402                 return 0;
1403
1404         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1405         if (!pmboxq)
1406                 return -ENOMEM;
1407
1408         lpfc_heart_beat(phba, pmboxq);
1409         pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1410         pmboxq->vport = phba->pport;
1411         retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
1412
1413         if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
1414                 mempool_free(pmboxq, phba->mbox_mem_pool);
1415                 return -ENXIO;
1416         }
1417         phba->hba_flag |= HBA_HBEAT_INP;
1418
1419         return 0;
1420 }
1421
1422 /**
1423  * lpfc_issue_hb_tmo - Signals heartbeat timer to issue mbox command
1424  * @phba: pointer to lpfc hba data structure.
1425  *
1426  * The heartbeat timer (every 5 sec) will fire. If the HBA_HBEAT_TMO
1427  * flag is set, it will force a MBX_HEARTBEAT mbox command, regardless
1428  * of the value of lpfc_enable_hba_heartbeat.
1429  * If lpfc_enable_hba_heartbeat is set, the timeout routine will always
1430  * try to issue a MBX_HEARTBEAT mbox command.
1431  **/
1432 void
1433 lpfc_issue_hb_tmo(struct lpfc_hba *phba)
1434 {
1435         if (phba->cfg_enable_hba_heartbeat)
1436                 return;
1437         phba->hba_flag |= HBA_HBEAT_TMO;
1438 }
1439
1440 /**
1441  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1442  * @phba: pointer to lpfc hba data structure.
1443  *
1444  * This is the actual HBA-timer timeout handler to be invoked by the worker
1445  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1446  * handler performs any periodic operations needed for the device. If such
1447  * periodic event has already been attended to either in the interrupt handler
1448  * or by processing slow-ring or fast-ring events within the HBA-timer
1449  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1450  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1451  * is configured and there is no heart-beat mailbox command outstanding, a
1452  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1453  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1454  * to offline.
1455  **/
1456 void
1457 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1458 {
1459         struct lpfc_vport **vports;
1460         struct lpfc_dmabuf *buf_ptr;
1461         int retval = 0;
1462         int i, tmo;
1463         struct lpfc_sli *psli = &phba->sli;
1464         LIST_HEAD(completions);
1465
1466         if (phba->cfg_xri_rebalancing) {
1467                 /* Multi-XRI pools handler */
1468                 lpfc_hb_mxp_handler(phba);
1469         }
1470
1471         vports = lpfc_create_vport_work_array(phba);
1472         if (vports != NULL)
1473                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1474                         lpfc_rcv_seq_check_edtov(vports[i]);
1475                         lpfc_fdmi_change_check(vports[i]);
1476                 }
1477         lpfc_destroy_vport_work_array(phba, vports);
1478
1479         if ((phba->link_state == LPFC_HBA_ERROR) ||
1480                 (phba->pport->load_flag & FC_UNLOADING) ||
1481                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1482                 return;
1483
1484         if (phba->elsbuf_cnt &&
1485                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1486                 spin_lock_irq(&phba->hbalock);
1487                 list_splice_init(&phba->elsbuf, &completions);
1488                 phba->elsbuf_cnt = 0;
1489                 phba->elsbuf_prev_cnt = 0;
1490                 spin_unlock_irq(&phba->hbalock);
1491
1492                 while (!list_empty(&completions)) {
1493                         list_remove_head(&completions, buf_ptr,
1494                                 struct lpfc_dmabuf, list);
1495                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1496                         kfree(buf_ptr);
1497                 }
1498         }
1499         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1500
1501         /* If there is no heart beat outstanding, issue a heartbeat command */
1502         if (phba->cfg_enable_hba_heartbeat) {
1503                 /* If IOs are completing, no need to issue a MBX_HEARTBEAT */
1504                 spin_lock_irq(&phba->pport->work_port_lock);
1505                 if (time_after(phba->last_completion_time +
1506                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1507                                 jiffies)) {
1508                         spin_unlock_irq(&phba->pport->work_port_lock);
1509                         if (phba->hba_flag & HBA_HBEAT_INP)
1510                                 tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1511                         else
1512                                 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1513                         goto out;
1514                 }
1515                 spin_unlock_irq(&phba->pport->work_port_lock);
1516
1517                 /* Check if a MBX_HEARTBEAT is already in progress */
1518                 if (phba->hba_flag & HBA_HBEAT_INP) {
1519                         /*
1520                          * If heart beat timeout called with HBA_HBEAT_INP set
1521                          * we need to give the hb mailbox cmd a chance to
1522                          * complete or TMO.
1523                          */
1524                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1525                                 "0459 Adapter heartbeat still outstanding: "
1526                                 "last compl time was %d ms.\n",
1527                                 jiffies_to_msecs(jiffies
1528                                          - phba->last_completion_time));
1529                         tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1530                 } else {
1531                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1532                                 (list_empty(&psli->mboxq))) {
1533
1534                                 retval = lpfc_issue_hb_mbox(phba);
1535                                 if (retval) {
1536                                         tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1537                                         goto out;
1538                                 }
1539                                 phba->skipped_hb = 0;
1540                         } else if (time_before_eq(phba->last_completion_time,
1541                                         phba->skipped_hb)) {
1542                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1543                                         "2857 Last completion time not "
1544                                         " updated in %d ms\n",
1545                                         jiffies_to_msecs(jiffies
1546                                                  - phba->last_completion_time));
1547                         } else
1548                                 phba->skipped_hb = jiffies;
1549
1550                         tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1551                         goto out;
1552                 }
1553         } else {
1554                 /* Check to see if we want to force a MBX_HEARTBEAT */
1555                 if (phba->hba_flag & HBA_HBEAT_TMO) {
1556                         retval = lpfc_issue_hb_mbox(phba);
1557                         if (retval)
1558                                 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1559                         else
1560                                 tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1561                         goto out;
1562                 }
1563                 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1564         }
1565 out:
1566         mod_timer(&phba->hb_tmofunc, jiffies + msecs_to_jiffies(tmo));
1567 }
1568
1569 /**
1570  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1571  * @phba: pointer to lpfc hba data structure.
1572  *
1573  * This routine is called to bring the HBA offline when HBA hardware error
1574  * other than Port Error 6 has been detected.
1575  **/
1576 static void
1577 lpfc_offline_eratt(struct lpfc_hba *phba)
1578 {
1579         struct lpfc_sli   *psli = &phba->sli;
1580
1581         spin_lock_irq(&phba->hbalock);
1582         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1583         spin_unlock_irq(&phba->hbalock);
1584         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1585
1586         lpfc_offline(phba);
1587         lpfc_reset_barrier(phba);
1588         spin_lock_irq(&phba->hbalock);
1589         lpfc_sli_brdreset(phba);
1590         spin_unlock_irq(&phba->hbalock);
1591         lpfc_hba_down_post(phba);
1592         lpfc_sli_brdready(phba, HS_MBRDY);
1593         lpfc_unblock_mgmt_io(phba);
1594         phba->link_state = LPFC_HBA_ERROR;
1595         return;
1596 }
1597
1598 /**
1599  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1600  * @phba: pointer to lpfc hba data structure.
1601  *
1602  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1603  * other than Port Error 6 has been detected.
1604  **/
1605 void
1606 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1607 {
1608         spin_lock_irq(&phba->hbalock);
1609         phba->link_state = LPFC_HBA_ERROR;
1610         spin_unlock_irq(&phba->hbalock);
1611
1612         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1613         lpfc_sli_flush_io_rings(phba);
1614         lpfc_offline(phba);
1615         lpfc_hba_down_post(phba);
1616         lpfc_unblock_mgmt_io(phba);
1617 }
1618
1619 /**
1620  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1621  * @phba: pointer to lpfc hba data structure.
1622  *
1623  * This routine is invoked to handle the deferred HBA hardware error
1624  * conditions. This type of error is indicated by HBA by setting ER1
1625  * and another ER bit in the host status register. The driver will
1626  * wait until the ER1 bit clears before handling the error condition.
1627  **/
1628 static void
1629 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1630 {
1631         uint32_t old_host_status = phba->work_hs;
1632         struct lpfc_sli *psli = &phba->sli;
1633
1634         /* If the pci channel is offline, ignore possible errors,
1635          * since we cannot communicate with the pci card anyway.
1636          */
1637         if (pci_channel_offline(phba->pcidev)) {
1638                 spin_lock_irq(&phba->hbalock);
1639                 phba->hba_flag &= ~DEFER_ERATT;
1640                 spin_unlock_irq(&phba->hbalock);
1641                 return;
1642         }
1643
1644         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1645                         "0479 Deferred Adapter Hardware Error "
1646                         "Data: x%x x%x x%x\n",
1647                         phba->work_hs, phba->work_status[0],
1648                         phba->work_status[1]);
1649
1650         spin_lock_irq(&phba->hbalock);
1651         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1652         spin_unlock_irq(&phba->hbalock);
1653
1654
1655         /*
1656          * Firmware stops when it triggred erratt. That could cause the I/Os
1657          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1658          * SCSI layer retry it after re-establishing link.
1659          */
1660         lpfc_sli_abort_fcp_rings(phba);
1661
1662         /*
1663          * There was a firmware error. Take the hba offline and then
1664          * attempt to restart it.
1665          */
1666         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1667         lpfc_offline(phba);
1668
1669         /* Wait for the ER1 bit to clear.*/
1670         while (phba->work_hs & HS_FFER1) {
1671                 msleep(100);
1672                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1673                         phba->work_hs = UNPLUG_ERR ;
1674                         break;
1675                 }
1676                 /* If driver is unloading let the worker thread continue */
1677                 if (phba->pport->load_flag & FC_UNLOADING) {
1678                         phba->work_hs = 0;
1679                         break;
1680                 }
1681         }
1682
1683         /*
1684          * This is to ptrotect against a race condition in which
1685          * first write to the host attention register clear the
1686          * host status register.
1687          */
1688         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1689                 phba->work_hs = old_host_status & ~HS_FFER1;
1690
1691         spin_lock_irq(&phba->hbalock);
1692         phba->hba_flag &= ~DEFER_ERATT;
1693         spin_unlock_irq(&phba->hbalock);
1694         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1695         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1696 }
1697
1698 static void
1699 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1700 {
1701         struct lpfc_board_event_header board_event;
1702         struct Scsi_Host *shost;
1703
1704         board_event.event_type = FC_REG_BOARD_EVENT;
1705         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1706         shost = lpfc_shost_from_vport(phba->pport);
1707         fc_host_post_vendor_event(shost, fc_get_event_number(),
1708                                   sizeof(board_event),
1709                                   (char *) &board_event,
1710                                   LPFC_NL_VENDOR_ID);
1711 }
1712
1713 /**
1714  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1715  * @phba: pointer to lpfc hba data structure.
1716  *
1717  * This routine is invoked to handle the following HBA hardware error
1718  * conditions:
1719  * 1 - HBA error attention interrupt
1720  * 2 - DMA ring index out of range
1721  * 3 - Mailbox command came back as unknown
1722  **/
1723 static void
1724 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1725 {
1726         struct lpfc_vport *vport = phba->pport;
1727         struct lpfc_sli   *psli = &phba->sli;
1728         uint32_t event_data;
1729         unsigned long temperature;
1730         struct temp_event temp_event_data;
1731         struct Scsi_Host  *shost;
1732
1733         /* If the pci channel is offline, ignore possible errors,
1734          * since we cannot communicate with the pci card anyway.
1735          */
1736         if (pci_channel_offline(phba->pcidev)) {
1737                 spin_lock_irq(&phba->hbalock);
1738                 phba->hba_flag &= ~DEFER_ERATT;
1739                 spin_unlock_irq(&phba->hbalock);
1740                 return;
1741         }
1742
1743         /* If resets are disabled then leave the HBA alone and return */
1744         if (!phba->cfg_enable_hba_reset)
1745                 return;
1746
1747         /* Send an internal error event to mgmt application */
1748         lpfc_board_errevt_to_mgmt(phba);
1749
1750         if (phba->hba_flag & DEFER_ERATT)
1751                 lpfc_handle_deferred_eratt(phba);
1752
1753         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1754                 if (phba->work_hs & HS_FFER6)
1755                         /* Re-establishing Link */
1756                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1757                                         "1301 Re-establishing Link "
1758                                         "Data: x%x x%x x%x\n",
1759                                         phba->work_hs, phba->work_status[0],
1760                                         phba->work_status[1]);
1761                 if (phba->work_hs & HS_FFER8)
1762                         /* Device Zeroization */
1763                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1764                                         "2861 Host Authentication device "
1765                                         "zeroization Data:x%x x%x x%x\n",
1766                                         phba->work_hs, phba->work_status[0],
1767                                         phba->work_status[1]);
1768
1769                 spin_lock_irq(&phba->hbalock);
1770                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1771                 spin_unlock_irq(&phba->hbalock);
1772
1773                 /*
1774                 * Firmware stops when it triggled erratt with HS_FFER6.
1775                 * That could cause the I/Os dropped by the firmware.
1776                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1777                 * retry it after re-establishing link.
1778                 */
1779                 lpfc_sli_abort_fcp_rings(phba);
1780
1781                 /*
1782                  * There was a firmware error.  Take the hba offline and then
1783                  * attempt to restart it.
1784                  */
1785                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1786                 lpfc_offline(phba);
1787                 lpfc_sli_brdrestart(phba);
1788                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1789                         lpfc_unblock_mgmt_io(phba);
1790                         return;
1791                 }
1792                 lpfc_unblock_mgmt_io(phba);
1793         } else if (phba->work_hs & HS_CRIT_TEMP) {
1794                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1795                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1796                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1797                 temp_event_data.data = (uint32_t)temperature;
1798
1799                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1800                                 "0406 Adapter maximum temperature exceeded "
1801                                 "(%ld), taking this port offline "
1802                                 "Data: x%x x%x x%x\n",
1803                                 temperature, phba->work_hs,
1804                                 phba->work_status[0], phba->work_status[1]);
1805
1806                 shost = lpfc_shost_from_vport(phba->pport);
1807                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1808                                           sizeof(temp_event_data),
1809                                           (char *) &temp_event_data,
1810                                           SCSI_NL_VID_TYPE_PCI
1811                                           | PCI_VENDOR_ID_EMULEX);
1812
1813                 spin_lock_irq(&phba->hbalock);
1814                 phba->over_temp_state = HBA_OVER_TEMP;
1815                 spin_unlock_irq(&phba->hbalock);
1816                 lpfc_offline_eratt(phba);
1817
1818         } else {
1819                 /* The if clause above forces this code path when the status
1820                  * failure is a value other than FFER6. Do not call the offline
1821                  * twice. This is the adapter hardware error path.
1822                  */
1823                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1824                                 "0457 Adapter Hardware Error "
1825                                 "Data: x%x x%x x%x\n",
1826                                 phba->work_hs,
1827                                 phba->work_status[0], phba->work_status[1]);
1828
1829                 event_data = FC_REG_DUMP_EVENT;
1830                 shost = lpfc_shost_from_vport(vport);
1831                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1832                                 sizeof(event_data), (char *) &event_data,
1833                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1834
1835                 lpfc_offline_eratt(phba);
1836         }
1837         return;
1838 }
1839
1840 /**
1841  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1842  * @phba: pointer to lpfc hba data structure.
1843  * @mbx_action: flag for mailbox shutdown action.
1844  * @en_rn_msg: send reset/port recovery message.
1845  * This routine is invoked to perform an SLI4 port PCI function reset in
1846  * response to port status register polling attention. It waits for port
1847  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1848  * During this process, interrupt vectors are freed and later requested
1849  * for handling possible port resource change.
1850  **/
1851 static int
1852 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1853                             bool en_rn_msg)
1854 {
1855         int rc;
1856         uint32_t intr_mode;
1857         LPFC_MBOXQ_t *mboxq;
1858
1859         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1860             LPFC_SLI_INTF_IF_TYPE_2) {
1861                 /*
1862                  * On error status condition, driver need to wait for port
1863                  * ready before performing reset.
1864                  */
1865                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1866                 if (rc)
1867                         return rc;
1868         }
1869
1870         /* need reset: attempt for port recovery */
1871         if (en_rn_msg)
1872                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1873                                 "2887 Reset Needed: Attempting Port "
1874                                 "Recovery...\n");
1875
1876         /* If we are no wait, the HBA has been reset and is not
1877          * functional, thus we should clear
1878          * (LPFC_SLI_ACTIVE | LPFC_SLI_MBOX_ACTIVE) flags.
1879          */
1880         if (mbx_action == LPFC_MBX_NO_WAIT) {
1881                 spin_lock_irq(&phba->hbalock);
1882                 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
1883                 if (phba->sli.mbox_active) {
1884                         mboxq = phba->sli.mbox_active;
1885                         mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
1886                         __lpfc_mbox_cmpl_put(phba, mboxq);
1887                         phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
1888                         phba->sli.mbox_active = NULL;
1889                 }
1890                 spin_unlock_irq(&phba->hbalock);
1891         }
1892
1893         lpfc_offline_prep(phba, mbx_action);
1894         lpfc_sli_flush_io_rings(phba);
1895         lpfc_offline(phba);
1896         /* release interrupt for possible resource change */
1897         lpfc_sli4_disable_intr(phba);
1898         rc = lpfc_sli_brdrestart(phba);
1899         if (rc) {
1900                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1901                                 "6309 Failed to restart board\n");
1902                 return rc;
1903         }
1904         /* request and enable interrupt */
1905         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1906         if (intr_mode == LPFC_INTR_ERROR) {
1907                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1908                                 "3175 Failed to enable interrupt\n");
1909                 return -EIO;
1910         }
1911         phba->intr_mode = intr_mode;
1912         rc = lpfc_online(phba);
1913         if (rc == 0)
1914                 lpfc_unblock_mgmt_io(phba);
1915
1916         return rc;
1917 }
1918
1919 /**
1920  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1921  * @phba: pointer to lpfc hba data structure.
1922  *
1923  * This routine is invoked to handle the SLI4 HBA hardware error attention
1924  * conditions.
1925  **/
1926 static void
1927 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1928 {
1929         struct lpfc_vport *vport = phba->pport;
1930         uint32_t event_data;
1931         struct Scsi_Host *shost;
1932         uint32_t if_type;
1933         struct lpfc_register portstat_reg = {0};
1934         uint32_t reg_err1, reg_err2;
1935         uint32_t uerrlo_reg, uemasklo_reg;
1936         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1937         bool en_rn_msg = true;
1938         struct temp_event temp_event_data;
1939         struct lpfc_register portsmphr_reg;
1940         int rc, i;
1941
1942         /* If the pci channel is offline, ignore possible errors, since
1943          * we cannot communicate with the pci card anyway.
1944          */
1945         if (pci_channel_offline(phba->pcidev)) {
1946                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1947                                 "3166 pci channel is offline\n");
1948                 lpfc_sli4_offline_eratt(phba);
1949                 return;
1950         }
1951
1952         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1953         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1954         switch (if_type) {
1955         case LPFC_SLI_INTF_IF_TYPE_0:
1956                 pci_rd_rc1 = lpfc_readl(
1957                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1958                                 &uerrlo_reg);
1959                 pci_rd_rc2 = lpfc_readl(
1960                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1961                                 &uemasklo_reg);
1962                 /* consider PCI bus read error as pci_channel_offline */
1963                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1964                         return;
1965                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1966                         lpfc_sli4_offline_eratt(phba);
1967                         return;
1968                 }
1969                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1970                                 "7623 Checking UE recoverable");
1971
1972                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1973                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1974                                        &portsmphr_reg.word0))
1975                                 continue;
1976
1977                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1978                                                    &portsmphr_reg);
1979                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1980                             LPFC_PORT_SEM_UE_RECOVERABLE)
1981                                 break;
1982                         /*Sleep for 1Sec, before checking SEMAPHORE */
1983                         msleep(1000);
1984                 }
1985
1986                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1987                                 "4827 smphr_port_status x%x : Waited %dSec",
1988                                 smphr_port_status, i);
1989
1990                 /* Recoverable UE, reset the HBA device */
1991                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1992                     LPFC_PORT_SEM_UE_RECOVERABLE) {
1993                         for (i = 0; i < 20; i++) {
1994                                 msleep(1000);
1995                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1996                                     &portsmphr_reg.word0) &&
1997                                     (LPFC_POST_STAGE_PORT_READY ==
1998                                      bf_get(lpfc_port_smphr_port_status,
1999                                      &portsmphr_reg))) {
2000                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
2001                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
2002                                         if (rc == 0)
2003                                                 return;
2004                                         lpfc_printf_log(phba, KERN_ERR,
2005                                                 LOG_TRACE_EVENT,
2006                                                 "4215 Failed to recover UE");
2007                                         break;
2008                                 }
2009                         }
2010                 }
2011                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2012                                 "7624 Firmware not ready: Failing UE recovery,"
2013                                 " waited %dSec", i);
2014                 phba->link_state = LPFC_HBA_ERROR;
2015                 break;
2016
2017         case LPFC_SLI_INTF_IF_TYPE_2:
2018         case LPFC_SLI_INTF_IF_TYPE_6:
2019                 pci_rd_rc1 = lpfc_readl(
2020                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
2021                                 &portstat_reg.word0);
2022                 /* consider PCI bus read error as pci_channel_offline */
2023                 if (pci_rd_rc1 == -EIO) {
2024                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2025                                 "3151 PCI bus read access failure: x%x\n",
2026                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
2027                         lpfc_sli4_offline_eratt(phba);
2028                         return;
2029                 }
2030                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
2031                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
2032                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
2033                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2034                                         "2889 Port Overtemperature event, "
2035                                         "taking port offline Data: x%x x%x\n",
2036                                         reg_err1, reg_err2);
2037
2038                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
2039                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
2040                         temp_event_data.event_code = LPFC_CRIT_TEMP;
2041                         temp_event_data.data = 0xFFFFFFFF;
2042
2043                         shost = lpfc_shost_from_vport(phba->pport);
2044                         fc_host_post_vendor_event(shost, fc_get_event_number(),
2045                                                   sizeof(temp_event_data),
2046                                                   (char *)&temp_event_data,
2047                                                   SCSI_NL_VID_TYPE_PCI
2048                                                   | PCI_VENDOR_ID_EMULEX);
2049
2050                         spin_lock_irq(&phba->hbalock);
2051                         phba->over_temp_state = HBA_OVER_TEMP;
2052                         spin_unlock_irq(&phba->hbalock);
2053                         lpfc_sli4_offline_eratt(phba);
2054                         return;
2055                 }
2056                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2057                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
2058                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2059                                         "3143 Port Down: Firmware Update "
2060                                         "Detected\n");
2061                         en_rn_msg = false;
2062                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2063                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2064                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2065                                         "3144 Port Down: Debug Dump\n");
2066                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2067                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
2068                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2069                                         "3145 Port Down: Provisioning\n");
2070
2071                 /* If resets are disabled then leave the HBA alone and return */
2072                 if (!phba->cfg_enable_hba_reset)
2073                         return;
2074
2075                 /* Check port status register for function reset */
2076                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
2077                                 en_rn_msg);
2078                 if (rc == 0) {
2079                         /* don't report event on forced debug dump */
2080                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2081                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2082                                 return;
2083                         else
2084                                 break;
2085                 }
2086                 /* fall through for not able to recover */
2087                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2088                                 "3152 Unrecoverable error\n");
2089                 phba->link_state = LPFC_HBA_ERROR;
2090                 break;
2091         case LPFC_SLI_INTF_IF_TYPE_1:
2092         default:
2093                 break;
2094         }
2095         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2096                         "3123 Report dump event to upper layer\n");
2097         /* Send an internal error event to mgmt application */
2098         lpfc_board_errevt_to_mgmt(phba);
2099
2100         event_data = FC_REG_DUMP_EVENT;
2101         shost = lpfc_shost_from_vport(vport);
2102         fc_host_post_vendor_event(shost, fc_get_event_number(),
2103                                   sizeof(event_data), (char *) &event_data,
2104                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
2105 }
2106
2107 /**
2108  * lpfc_handle_eratt - Wrapper func for handling hba error attention
2109  * @phba: pointer to lpfc HBA data structure.
2110  *
2111  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
2112  * routine from the API jump table function pointer from the lpfc_hba struct.
2113  *
2114  * Return codes
2115  *   0 - success.
2116  *   Any other value - error.
2117  **/
2118 void
2119 lpfc_handle_eratt(struct lpfc_hba *phba)
2120 {
2121         (*phba->lpfc_handle_eratt)(phba);
2122 }
2123
2124 /**
2125  * lpfc_handle_latt - The HBA link event handler
2126  * @phba: pointer to lpfc hba data structure.
2127  *
2128  * This routine is invoked from the worker thread to handle a HBA host
2129  * attention link event. SLI3 only.
2130  **/
2131 void
2132 lpfc_handle_latt(struct lpfc_hba *phba)
2133 {
2134         struct lpfc_vport *vport = phba->pport;
2135         struct lpfc_sli   *psli = &phba->sli;
2136         LPFC_MBOXQ_t *pmb;
2137         volatile uint32_t control;
2138         struct lpfc_dmabuf *mp;
2139         int rc = 0;
2140
2141         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2142         if (!pmb) {
2143                 rc = 1;
2144                 goto lpfc_handle_latt_err_exit;
2145         }
2146
2147         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2148         if (!mp) {
2149                 rc = 2;
2150                 goto lpfc_handle_latt_free_pmb;
2151         }
2152
2153         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2154         if (!mp->virt) {
2155                 rc = 3;
2156                 goto lpfc_handle_latt_free_mp;
2157         }
2158
2159         /* Cleanup any outstanding ELS commands */
2160         lpfc_els_flush_all_cmd(phba);
2161
2162         psli->slistat.link_event++;
2163         lpfc_read_topology(phba, pmb, mp);
2164         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2165         pmb->vport = vport;
2166         /* Block ELS IOCBs until we have processed this mbox command */
2167         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2168         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2169         if (rc == MBX_NOT_FINISHED) {
2170                 rc = 4;
2171                 goto lpfc_handle_latt_free_mbuf;
2172         }
2173
2174         /* Clear Link Attention in HA REG */
2175         spin_lock_irq(&phba->hbalock);
2176         writel(HA_LATT, phba->HAregaddr);
2177         readl(phba->HAregaddr); /* flush */
2178         spin_unlock_irq(&phba->hbalock);
2179
2180         return;
2181
2182 lpfc_handle_latt_free_mbuf:
2183         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2184         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2185 lpfc_handle_latt_free_mp:
2186         kfree(mp);
2187 lpfc_handle_latt_free_pmb:
2188         mempool_free(pmb, phba->mbox_mem_pool);
2189 lpfc_handle_latt_err_exit:
2190         /* Enable Link attention interrupts */
2191         spin_lock_irq(&phba->hbalock);
2192         psli->sli_flag |= LPFC_PROCESS_LA;
2193         control = readl(phba->HCregaddr);
2194         control |= HC_LAINT_ENA;
2195         writel(control, phba->HCregaddr);
2196         readl(phba->HCregaddr); /* flush */
2197
2198         /* Clear Link Attention in HA REG */
2199         writel(HA_LATT, phba->HAregaddr);
2200         readl(phba->HAregaddr); /* flush */
2201         spin_unlock_irq(&phba->hbalock);
2202         lpfc_linkdown(phba);
2203         phba->link_state = LPFC_HBA_ERROR;
2204
2205         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2206                         "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2207
2208         return;
2209 }
2210
2211 /**
2212  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2213  * @phba: pointer to lpfc hba data structure.
2214  * @vpd: pointer to the vital product data.
2215  * @len: length of the vital product data in bytes.
2216  *
2217  * This routine parses the Vital Product Data (VPD). The VPD is treated as
2218  * an array of characters. In this routine, the ModelName, ProgramType, and
2219  * ModelDesc, etc. fields of the phba data structure will be populated.
2220  *
2221  * Return codes
2222  *   0 - pointer to the VPD passed in is NULL
2223  *   1 - success
2224  **/
2225 int
2226 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2227 {
2228         uint8_t lenlo, lenhi;
2229         int Length;
2230         int i, j;
2231         int finished = 0;
2232         int index = 0;
2233
2234         if (!vpd)
2235                 return 0;
2236
2237         /* Vital Product */
2238         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2239                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2240                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2241                         (uint32_t) vpd[3]);
2242         while (!finished && (index < (len - 4))) {
2243                 switch (vpd[index]) {
2244                 case 0x82:
2245                 case 0x91:
2246                         index += 1;
2247                         lenlo = vpd[index];
2248                         index += 1;
2249                         lenhi = vpd[index];
2250                         index += 1;
2251                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2252                         index += i;
2253                         break;
2254                 case 0x90:
2255                         index += 1;
2256                         lenlo = vpd[index];
2257                         index += 1;
2258                         lenhi = vpd[index];
2259                         index += 1;
2260                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2261                         if (Length > len - index)
2262                                 Length = len - index;
2263                         while (Length > 0) {
2264                         /* Look for Serial Number */
2265                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2266                                 index += 2;
2267                                 i = vpd[index];
2268                                 index += 1;
2269                                 j = 0;
2270                                 Length -= (3+i);
2271                                 while(i--) {
2272                                         phba->SerialNumber[j++] = vpd[index++];
2273                                         if (j == 31)
2274                                                 break;
2275                                 }
2276                                 phba->SerialNumber[j] = 0;
2277                                 continue;
2278                         }
2279                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2280                                 phba->vpd_flag |= VPD_MODEL_DESC;
2281                                 index += 2;
2282                                 i = vpd[index];
2283                                 index += 1;
2284                                 j = 0;
2285                                 Length -= (3+i);
2286                                 while(i--) {
2287                                         phba->ModelDesc[j++] = vpd[index++];
2288                                         if (j == 255)
2289                                                 break;
2290                                 }
2291                                 phba->ModelDesc[j] = 0;
2292                                 continue;
2293                         }
2294                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2295                                 phba->vpd_flag |= VPD_MODEL_NAME;
2296                                 index += 2;
2297                                 i = vpd[index];
2298                                 index += 1;
2299                                 j = 0;
2300                                 Length -= (3+i);
2301                                 while(i--) {
2302                                         phba->ModelName[j++] = vpd[index++];
2303                                         if (j == 79)
2304                                                 break;
2305                                 }
2306                                 phba->ModelName[j] = 0;
2307                                 continue;
2308                         }
2309                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2310                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2311                                 index += 2;
2312                                 i = vpd[index];
2313                                 index += 1;
2314                                 j = 0;
2315                                 Length -= (3+i);
2316                                 while(i--) {
2317                                         phba->ProgramType[j++] = vpd[index++];
2318                                         if (j == 255)
2319                                                 break;
2320                                 }
2321                                 phba->ProgramType[j] = 0;
2322                                 continue;
2323                         }
2324                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2325                                 phba->vpd_flag |= VPD_PORT;
2326                                 index += 2;
2327                                 i = vpd[index];
2328                                 index += 1;
2329                                 j = 0;
2330                                 Length -= (3+i);
2331                                 while(i--) {
2332                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
2333                                             (phba->sli4_hba.pport_name_sta ==
2334                                              LPFC_SLI4_PPNAME_GET)) {
2335                                                 j++;
2336                                                 index++;
2337                                         } else
2338                                                 phba->Port[j++] = vpd[index++];
2339                                         if (j == 19)
2340                                                 break;
2341                                 }
2342                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2343                                     (phba->sli4_hba.pport_name_sta ==
2344                                      LPFC_SLI4_PPNAME_NON))
2345                                         phba->Port[j] = 0;
2346                                 continue;
2347                         }
2348                         else {
2349                                 index += 2;
2350                                 i = vpd[index];
2351                                 index += 1;
2352                                 index += i;
2353                                 Length -= (3 + i);
2354                         }
2355                 }
2356                 finished = 0;
2357                 break;
2358                 case 0x78:
2359                         finished = 1;
2360                         break;
2361                 default:
2362                         index ++;
2363                         break;
2364                 }
2365         }
2366
2367         return(1);
2368 }
2369
2370 /**
2371  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2372  * @phba: pointer to lpfc hba data structure.
2373  * @mdp: pointer to the data structure to hold the derived model name.
2374  * @descp: pointer to the data structure to hold the derived description.
2375  *
2376  * This routine retrieves HBA's description based on its registered PCI device
2377  * ID. The @descp passed into this function points to an array of 256 chars. It
2378  * shall be returned with the model name, maximum speed, and the host bus type.
2379  * The @mdp passed into this function points to an array of 80 chars. When the
2380  * function returns, the @mdp will be filled with the model name.
2381  **/
2382 static void
2383 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2384 {
2385         lpfc_vpd_t *vp;
2386         uint16_t dev_id = phba->pcidev->device;
2387         int max_speed;
2388         int GE = 0;
2389         int oneConnect = 0; /* default is not a oneConnect */
2390         struct {
2391                 char *name;
2392                 char *bus;
2393                 char *function;
2394         } m = {"<Unknown>", "", ""};
2395
2396         if (mdp && mdp[0] != '\0'
2397                 && descp && descp[0] != '\0')
2398                 return;
2399
2400         if (phba->lmt & LMT_64Gb)
2401                 max_speed = 64;
2402         else if (phba->lmt & LMT_32Gb)
2403                 max_speed = 32;
2404         else if (phba->lmt & LMT_16Gb)
2405                 max_speed = 16;
2406         else if (phba->lmt & LMT_10Gb)
2407                 max_speed = 10;
2408         else if (phba->lmt & LMT_8Gb)
2409                 max_speed = 8;
2410         else if (phba->lmt & LMT_4Gb)
2411                 max_speed = 4;
2412         else if (phba->lmt & LMT_2Gb)
2413                 max_speed = 2;
2414         else if (phba->lmt & LMT_1Gb)
2415                 max_speed = 1;
2416         else
2417                 max_speed = 0;
2418
2419         vp = &phba->vpd;
2420
2421         switch (dev_id) {
2422         case PCI_DEVICE_ID_FIREFLY:
2423                 m = (typeof(m)){"LP6000", "PCI",
2424                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2425                 break;
2426         case PCI_DEVICE_ID_SUPERFLY:
2427                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2428                         m = (typeof(m)){"LP7000", "PCI", ""};
2429                 else
2430                         m = (typeof(m)){"LP7000E", "PCI", ""};
2431                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2432                 break;
2433         case PCI_DEVICE_ID_DRAGONFLY:
2434                 m = (typeof(m)){"LP8000", "PCI",
2435                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2436                 break;
2437         case PCI_DEVICE_ID_CENTAUR:
2438                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2439                         m = (typeof(m)){"LP9002", "PCI", ""};
2440                 else
2441                         m = (typeof(m)){"LP9000", "PCI", ""};
2442                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2443                 break;
2444         case PCI_DEVICE_ID_RFLY:
2445                 m = (typeof(m)){"LP952", "PCI",
2446                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2447                 break;
2448         case PCI_DEVICE_ID_PEGASUS:
2449                 m = (typeof(m)){"LP9802", "PCI-X",
2450                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2451                 break;
2452         case PCI_DEVICE_ID_THOR:
2453                 m = (typeof(m)){"LP10000", "PCI-X",
2454                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2455                 break;
2456         case PCI_DEVICE_ID_VIPER:
2457                 m = (typeof(m)){"LPX1000",  "PCI-X",
2458                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2459                 break;
2460         case PCI_DEVICE_ID_PFLY:
2461                 m = (typeof(m)){"LP982", "PCI-X",
2462                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2463                 break;
2464         case PCI_DEVICE_ID_TFLY:
2465                 m = (typeof(m)){"LP1050", "PCI-X",
2466                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2467                 break;
2468         case PCI_DEVICE_ID_HELIOS:
2469                 m = (typeof(m)){"LP11000", "PCI-X2",
2470                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2471                 break;
2472         case PCI_DEVICE_ID_HELIOS_SCSP:
2473                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2474                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2475                 break;
2476         case PCI_DEVICE_ID_HELIOS_DCSP:
2477                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2478                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2479                 break;
2480         case PCI_DEVICE_ID_NEPTUNE:
2481                 m = (typeof(m)){"LPe1000", "PCIe",
2482                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2483                 break;
2484         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2485                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2486                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2487                 break;
2488         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2489                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2490                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2491                 break;
2492         case PCI_DEVICE_ID_BMID:
2493                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2494                 break;
2495         case PCI_DEVICE_ID_BSMB:
2496                 m = (typeof(m)){"LP111", "PCI-X2",
2497                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2498                 break;
2499         case PCI_DEVICE_ID_ZEPHYR:
2500                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2501                 break;
2502         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2503                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2504                 break;
2505         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2506                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2507                 GE = 1;
2508                 break;
2509         case PCI_DEVICE_ID_ZMID:
2510                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2511                 break;
2512         case PCI_DEVICE_ID_ZSMB:
2513                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2514                 break;
2515         case PCI_DEVICE_ID_LP101:
2516                 m = (typeof(m)){"LP101", "PCI-X",
2517                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2518                 break;
2519         case PCI_DEVICE_ID_LP10000S:
2520                 m = (typeof(m)){"LP10000-S", "PCI",
2521                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2522                 break;
2523         case PCI_DEVICE_ID_LP11000S:
2524                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2525                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2526                 break;
2527         case PCI_DEVICE_ID_LPE11000S:
2528                 m = (typeof(m)){"LPe11000-S", "PCIe",
2529                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2530                 break;
2531         case PCI_DEVICE_ID_SAT:
2532                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2533                 break;
2534         case PCI_DEVICE_ID_SAT_MID:
2535                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2536                 break;
2537         case PCI_DEVICE_ID_SAT_SMB:
2538                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2539                 break;
2540         case PCI_DEVICE_ID_SAT_DCSP:
2541                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2542                 break;
2543         case PCI_DEVICE_ID_SAT_SCSP:
2544                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2545                 break;
2546         case PCI_DEVICE_ID_SAT_S:
2547                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2548                 break;
2549         case PCI_DEVICE_ID_HORNET:
2550                 m = (typeof(m)){"LP21000", "PCIe",
2551                                 "Obsolete, Unsupported FCoE Adapter"};
2552                 GE = 1;
2553                 break;
2554         case PCI_DEVICE_ID_PROTEUS_VF:
2555                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2556                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2557                 break;
2558         case PCI_DEVICE_ID_PROTEUS_PF:
2559                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2560                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2561                 break;
2562         case PCI_DEVICE_ID_PROTEUS_S:
2563                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2564                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2565                 break;
2566         case PCI_DEVICE_ID_TIGERSHARK:
2567                 oneConnect = 1;
2568                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2569                 break;
2570         case PCI_DEVICE_ID_TOMCAT:
2571                 oneConnect = 1;
2572                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2573                 break;
2574         case PCI_DEVICE_ID_FALCON:
2575                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2576                                 "EmulexSecure Fibre"};
2577                 break;
2578         case PCI_DEVICE_ID_BALIUS:
2579                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2580                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2581                 break;
2582         case PCI_DEVICE_ID_LANCER_FC:
2583                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2584                 break;
2585         case PCI_DEVICE_ID_LANCER_FC_VF:
2586                 m = (typeof(m)){"LPe16000", "PCIe",
2587                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2588                 break;
2589         case PCI_DEVICE_ID_LANCER_FCOE:
2590                 oneConnect = 1;
2591                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2592                 break;
2593         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2594                 oneConnect = 1;
2595                 m = (typeof(m)){"OCe15100", "PCIe",
2596                                 "Obsolete, Unsupported FCoE"};
2597                 break;
2598         case PCI_DEVICE_ID_LANCER_G6_FC:
2599                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2600                 break;
2601         case PCI_DEVICE_ID_LANCER_G7_FC:
2602                 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2603                 break;
2604         case PCI_DEVICE_ID_LANCER_G7P_FC:
2605                 m = (typeof(m)){"LPe38000", "PCIe", "Fibre Channel Adapter"};
2606                 break;
2607         case PCI_DEVICE_ID_SKYHAWK:
2608         case PCI_DEVICE_ID_SKYHAWK_VF:
2609                 oneConnect = 1;
2610                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2611                 break;
2612         default:
2613                 m = (typeof(m)){"Unknown", "", ""};
2614                 break;
2615         }
2616
2617         if (mdp && mdp[0] == '\0')
2618                 snprintf(mdp, 79,"%s", m.name);
2619         /*
2620          * oneConnect hba requires special processing, they are all initiators
2621          * and we put the port number on the end
2622          */
2623         if (descp && descp[0] == '\0') {
2624                 if (oneConnect)
2625                         snprintf(descp, 255,
2626                                 "Emulex OneConnect %s, %s Initiator %s",
2627                                 m.name, m.function,
2628                                 phba->Port);
2629                 else if (max_speed == 0)
2630                         snprintf(descp, 255,
2631                                 "Emulex %s %s %s",
2632                                 m.name, m.bus, m.function);
2633                 else
2634                         snprintf(descp, 255,
2635                                 "Emulex %s %d%s %s %s",
2636                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2637                                 m.bus, m.function);
2638         }
2639 }
2640
2641 /**
2642  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2643  * @phba: pointer to lpfc hba data structure.
2644  * @pring: pointer to a IOCB ring.
2645  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2646  *
2647  * This routine posts a given number of IOCBs with the associated DMA buffer
2648  * descriptors specified by the cnt argument to the given IOCB ring.
2649  *
2650  * Return codes
2651  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2652  **/
2653 int
2654 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2655 {
2656         IOCB_t *icmd;
2657         struct lpfc_iocbq *iocb;
2658         struct lpfc_dmabuf *mp1, *mp2;
2659
2660         cnt += pring->missbufcnt;
2661
2662         /* While there are buffers to post */
2663         while (cnt > 0) {
2664                 /* Allocate buffer for  command iocb */
2665                 iocb = lpfc_sli_get_iocbq(phba);
2666                 if (iocb == NULL) {
2667                         pring->missbufcnt = cnt;
2668                         return cnt;
2669                 }
2670                 icmd = &iocb->iocb;
2671
2672                 /* 2 buffers can be posted per command */
2673                 /* Allocate buffer to post */
2674                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2675                 if (mp1)
2676                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2677                 if (!mp1 || !mp1->virt) {
2678                         kfree(mp1);
2679                         lpfc_sli_release_iocbq(phba, iocb);
2680                         pring->missbufcnt = cnt;
2681                         return cnt;
2682                 }
2683
2684                 INIT_LIST_HEAD(&mp1->list);
2685                 /* Allocate buffer to post */
2686                 if (cnt > 1) {
2687                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2688                         if (mp2)
2689                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2690                                                             &mp2->phys);
2691                         if (!mp2 || !mp2->virt) {
2692                                 kfree(mp2);
2693                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2694                                 kfree(mp1);
2695                                 lpfc_sli_release_iocbq(phba, iocb);
2696                                 pring->missbufcnt = cnt;
2697                                 return cnt;
2698                         }
2699
2700                         INIT_LIST_HEAD(&mp2->list);
2701                 } else {
2702                         mp2 = NULL;
2703                 }
2704
2705                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2706                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2707                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2708                 icmd->ulpBdeCount = 1;
2709                 cnt--;
2710                 if (mp2) {
2711                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2712                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2713                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2714                         cnt--;
2715                         icmd->ulpBdeCount = 2;
2716                 }
2717
2718                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2719                 icmd->ulpLe = 1;
2720
2721                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2722                     IOCB_ERROR) {
2723                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2724                         kfree(mp1);
2725                         cnt++;
2726                         if (mp2) {
2727                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2728                                 kfree(mp2);
2729                                 cnt++;
2730                         }
2731                         lpfc_sli_release_iocbq(phba, iocb);
2732                         pring->missbufcnt = cnt;
2733                         return cnt;
2734                 }
2735                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2736                 if (mp2)
2737                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2738         }
2739         pring->missbufcnt = 0;
2740         return 0;
2741 }
2742
2743 /**
2744  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2745  * @phba: pointer to lpfc hba data structure.
2746  *
2747  * This routine posts initial receive IOCB buffers to the ELS ring. The
2748  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2749  * set to 64 IOCBs. SLI3 only.
2750  *
2751  * Return codes
2752  *   0 - success (currently always success)
2753  **/
2754 static int
2755 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2756 {
2757         struct lpfc_sli *psli = &phba->sli;
2758
2759         /* Ring 0, ELS / CT buffers */
2760         lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2761         /* Ring 2 - FCP no buffers needed */
2762
2763         return 0;
2764 }
2765
2766 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2767
2768 /**
2769  * lpfc_sha_init - Set up initial array of hash table entries
2770  * @HashResultPointer: pointer to an array as hash table.
2771  *
2772  * This routine sets up the initial values to the array of hash table entries
2773  * for the LC HBAs.
2774  **/
2775 static void
2776 lpfc_sha_init(uint32_t * HashResultPointer)
2777 {
2778         HashResultPointer[0] = 0x67452301;
2779         HashResultPointer[1] = 0xEFCDAB89;
2780         HashResultPointer[2] = 0x98BADCFE;
2781         HashResultPointer[3] = 0x10325476;
2782         HashResultPointer[4] = 0xC3D2E1F0;
2783 }
2784
2785 /**
2786  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2787  * @HashResultPointer: pointer to an initial/result hash table.
2788  * @HashWorkingPointer: pointer to an working hash table.
2789  *
2790  * This routine iterates an initial hash table pointed by @HashResultPointer
2791  * with the values from the working hash table pointeed by @HashWorkingPointer.
2792  * The results are putting back to the initial hash table, returned through
2793  * the @HashResultPointer as the result hash table.
2794  **/
2795 static void
2796 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2797 {
2798         int t;
2799         uint32_t TEMP;
2800         uint32_t A, B, C, D, E;
2801         t = 16;
2802         do {
2803                 HashWorkingPointer[t] =
2804                     S(1,
2805                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2806                                                                      8] ^
2807                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2808         } while (++t <= 79);
2809         t = 0;
2810         A = HashResultPointer[0];
2811         B = HashResultPointer[1];
2812         C = HashResultPointer[2];
2813         D = HashResultPointer[3];
2814         E = HashResultPointer[4];
2815
2816         do {
2817                 if (t < 20) {
2818                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2819                 } else if (t < 40) {
2820                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2821                 } else if (t < 60) {
2822                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2823                 } else {
2824                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2825                 }
2826                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2827                 E = D;
2828                 D = C;
2829                 C = S(30, B);
2830                 B = A;
2831                 A = TEMP;
2832         } while (++t <= 79);
2833
2834         HashResultPointer[0] += A;
2835         HashResultPointer[1] += B;
2836         HashResultPointer[2] += C;
2837         HashResultPointer[3] += D;
2838         HashResultPointer[4] += E;
2839
2840 }
2841
2842 /**
2843  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2844  * @RandomChallenge: pointer to the entry of host challenge random number array.
2845  * @HashWorking: pointer to the entry of the working hash array.
2846  *
2847  * This routine calculates the working hash array referred by @HashWorking
2848  * from the challenge random numbers associated with the host, referred by
2849  * @RandomChallenge. The result is put into the entry of the working hash
2850  * array and returned by reference through @HashWorking.
2851  **/
2852 static void
2853 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2854 {
2855         *HashWorking = (*RandomChallenge ^ *HashWorking);
2856 }
2857
2858 /**
2859  * lpfc_hba_init - Perform special handling for LC HBA initialization
2860  * @phba: pointer to lpfc hba data structure.
2861  * @hbainit: pointer to an array of unsigned 32-bit integers.
2862  *
2863  * This routine performs the special handling for LC HBA initialization.
2864  **/
2865 void
2866 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2867 {
2868         int t;
2869         uint32_t *HashWorking;
2870         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2871
2872         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2873         if (!HashWorking)
2874                 return;
2875
2876         HashWorking[0] = HashWorking[78] = *pwwnn++;
2877         HashWorking[1] = HashWorking[79] = *pwwnn;
2878
2879         for (t = 0; t < 7; t++)
2880                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2881
2882         lpfc_sha_init(hbainit);
2883         lpfc_sha_iterate(hbainit, HashWorking);
2884         kfree(HashWorking);
2885 }
2886
2887 /**
2888  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2889  * @vport: pointer to a virtual N_Port data structure.
2890  *
2891  * This routine performs the necessary cleanups before deleting the @vport.
2892  * It invokes the discovery state machine to perform necessary state
2893  * transitions and to release the ndlps associated with the @vport. Note,
2894  * the physical port is treated as @vport 0.
2895  **/
2896 void
2897 lpfc_cleanup(struct lpfc_vport *vport)
2898 {
2899         struct lpfc_hba   *phba = vport->phba;
2900         struct lpfc_nodelist *ndlp, *next_ndlp;
2901         int i = 0;
2902
2903         if (phba->link_state > LPFC_LINK_DOWN)
2904                 lpfc_port_link_failure(vport);
2905
2906         /* Clean up VMID resources */
2907         if (lpfc_is_vmid_enabled(phba))
2908                 lpfc_vmid_vport_cleanup(vport);
2909
2910         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2911                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2912                     ndlp->nlp_DID == Fabric_DID) {
2913                         /* Just free up ndlp with Fabric_DID for vports */
2914                         lpfc_nlp_put(ndlp);
2915                         continue;
2916                 }
2917
2918                 if (ndlp->nlp_DID == Fabric_Cntl_DID &&
2919                     ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2920                         lpfc_nlp_put(ndlp);
2921                         continue;
2922                 }
2923
2924                 /* Fabric Ports not in UNMAPPED state are cleaned up in the
2925                  * DEVICE_RM event.
2926                  */
2927                 if (ndlp->nlp_type & NLP_FABRIC &&
2928                     ndlp->nlp_state == NLP_STE_UNMAPPED_NODE)
2929                         lpfc_disc_state_machine(vport, ndlp, NULL,
2930                                         NLP_EVT_DEVICE_RECOVERY);
2931
2932                 if (!(ndlp->fc4_xpt_flags & (NVME_XPT_REGD|SCSI_XPT_REGD)))
2933                         lpfc_disc_state_machine(vport, ndlp, NULL,
2934                                         NLP_EVT_DEVICE_RM);
2935         }
2936
2937         /* At this point, ALL ndlp's should be gone
2938          * because of the previous NLP_EVT_DEVICE_RM.
2939          * Lets wait for this to happen, if needed.
2940          */
2941         while (!list_empty(&vport->fc_nodes)) {
2942                 if (i++ > 3000) {
2943                         lpfc_printf_vlog(vport, KERN_ERR,
2944                                          LOG_TRACE_EVENT,
2945                                 "0233 Nodelist not empty\n");
2946                         list_for_each_entry_safe(ndlp, next_ndlp,
2947                                                 &vport->fc_nodes, nlp_listp) {
2948                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2949                                                  LOG_TRACE_EVENT,
2950                                                  "0282 did:x%x ndlp:x%px "
2951                                                  "refcnt:%d xflags x%x nflag x%x\n",
2952                                                  ndlp->nlp_DID, (void *)ndlp,
2953                                                  kref_read(&ndlp->kref),
2954                                                  ndlp->fc4_xpt_flags,
2955                                                  ndlp->nlp_flag);
2956                         }
2957                         break;
2958                 }
2959
2960                 /* Wait for any activity on ndlps to settle */
2961                 msleep(10);
2962         }
2963         lpfc_cleanup_vports_rrqs(vport, NULL);
2964 }
2965
2966 /**
2967  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2968  * @vport: pointer to a virtual N_Port data structure.
2969  *
2970  * This routine stops all the timers associated with a @vport. This function
2971  * is invoked before disabling or deleting a @vport. Note that the physical
2972  * port is treated as @vport 0.
2973  **/
2974 void
2975 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2976 {
2977         del_timer_sync(&vport->els_tmofunc);
2978         del_timer_sync(&vport->delayed_disc_tmo);
2979         lpfc_can_disctmo(vport);
2980         return;
2981 }
2982
2983 /**
2984  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2985  * @phba: pointer to lpfc hba data structure.
2986  *
2987  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2988  * caller of this routine should already hold the host lock.
2989  **/
2990 void
2991 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2992 {
2993         /* Clear pending FCF rediscovery wait flag */
2994         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2995
2996         /* Now, try to stop the timer */
2997         del_timer(&phba->fcf.redisc_wait);
2998 }
2999
3000 /**
3001  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
3002  * @phba: pointer to lpfc hba data structure.
3003  *
3004  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
3005  * checks whether the FCF rediscovery wait timer is pending with the host
3006  * lock held before proceeding with disabling the timer and clearing the
3007  * wait timer pendig flag.
3008  **/
3009 void
3010 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
3011 {
3012         spin_lock_irq(&phba->hbalock);
3013         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3014                 /* FCF rediscovery timer already fired or stopped */
3015                 spin_unlock_irq(&phba->hbalock);
3016                 return;
3017         }
3018         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3019         /* Clear failover in progress flags */
3020         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
3021         spin_unlock_irq(&phba->hbalock);
3022 }
3023
3024 /**
3025  * lpfc_cmf_stop - Stop CMF processing
3026  * @phba: pointer to lpfc hba data structure.
3027  *
3028  * This is called when the link goes down or if CMF mode is turned OFF.
3029  * It is also called when going offline or unloaded just before the
3030  * congestion info buffer is unregistered.
3031  **/
3032 void
3033 lpfc_cmf_stop(struct lpfc_hba *phba)
3034 {
3035         int cpu;
3036         struct lpfc_cgn_stat *cgs;
3037
3038         /* We only do something if CMF is enabled */
3039         if (!phba->sli4_hba.pc_sli4_params.cmf)
3040                 return;
3041
3042         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3043                         "6221 Stop CMF / Cancel Timer\n");
3044
3045         /* Cancel the CMF timer */
3046         hrtimer_cancel(&phba->cmf_timer);
3047
3048         /* Zero CMF counters */
3049         atomic_set(&phba->cmf_busy, 0);
3050         for_each_present_cpu(cpu) {
3051                 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
3052                 atomic64_set(&cgs->total_bytes, 0);
3053                 atomic64_set(&cgs->rcv_bytes, 0);
3054                 atomic_set(&cgs->rx_io_cnt, 0);
3055                 atomic64_set(&cgs->rx_latency, 0);
3056         }
3057         atomic_set(&phba->cmf_bw_wait, 0);
3058
3059         /* Resume any blocked IO - Queue unblock on workqueue */
3060         queue_work(phba->wq, &phba->unblock_request_work);
3061 }
3062
3063 static inline uint64_t
3064 lpfc_get_max_line_rate(struct lpfc_hba *phba)
3065 {
3066         uint64_t rate = lpfc_sli_port_speed_get(phba);
3067
3068         return ((((unsigned long)rate) * 1024 * 1024) / 10);
3069 }
3070
3071 void
3072 lpfc_cmf_signal_init(struct lpfc_hba *phba)
3073 {
3074         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3075                         "6223 Signal CMF init\n");
3076
3077         /* Use the new fc_linkspeed to recalculate */
3078         phba->cmf_interval_rate = LPFC_CMF_INTERVAL;
3079         phba->cmf_max_line_rate = lpfc_get_max_line_rate(phba);
3080         phba->cmf_link_byte_count = div_u64(phba->cmf_max_line_rate *
3081                                             phba->cmf_interval_rate, 1000);
3082         phba->cmf_max_bytes_per_interval = phba->cmf_link_byte_count;
3083
3084         /* This is a signal to firmware to sync up CMF BW with link speed */
3085         lpfc_issue_cmf_sync_wqe(phba, 0, 0);
3086 }
3087
3088 /**
3089  * lpfc_cmf_start - Start CMF processing
3090  * @phba: pointer to lpfc hba data structure.
3091  *
3092  * This is called when the link comes up or if CMF mode is turned OFF
3093  * to Monitor or Managed.
3094  **/
3095 void
3096 lpfc_cmf_start(struct lpfc_hba *phba)
3097 {
3098         struct lpfc_cgn_stat *cgs;
3099         int cpu;
3100
3101         /* We only do something if CMF is enabled */
3102         if (!phba->sli4_hba.pc_sli4_params.cmf ||
3103             phba->cmf_active_mode == LPFC_CFG_OFF)
3104                 return;
3105
3106         /* Reinitialize congestion buffer info */
3107         lpfc_init_congestion_buf(phba);
3108
3109         atomic_set(&phba->cgn_fabric_warn_cnt, 0);
3110         atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
3111         atomic_set(&phba->cgn_sync_alarm_cnt, 0);
3112         atomic_set(&phba->cgn_sync_warn_cnt, 0);
3113
3114         atomic_set(&phba->cmf_busy, 0);
3115         for_each_present_cpu(cpu) {
3116                 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
3117                 atomic64_set(&cgs->total_bytes, 0);
3118                 atomic64_set(&cgs->rcv_bytes, 0);
3119                 atomic_set(&cgs->rx_io_cnt, 0);
3120                 atomic64_set(&cgs->rx_latency, 0);
3121         }
3122         phba->cmf_latency.tv_sec = 0;
3123         phba->cmf_latency.tv_nsec = 0;
3124
3125         lpfc_cmf_signal_init(phba);
3126
3127         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3128                         "6222 Start CMF / Timer\n");
3129
3130         phba->cmf_timer_cnt = 0;
3131         hrtimer_start(&phba->cmf_timer,
3132                       ktime_set(0, LPFC_CMF_INTERVAL * 1000000),
3133                       HRTIMER_MODE_REL);
3134         /* Setup for latency check in IO cmpl routines */
3135         ktime_get_real_ts64(&phba->cmf_latency);
3136
3137         atomic_set(&phba->cmf_bw_wait, 0);
3138         atomic_set(&phba->cmf_stop_io, 0);
3139 }
3140
3141 /**
3142  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
3143  * @phba: pointer to lpfc hba data structure.
3144  *
3145  * This routine stops all the timers associated with a HBA. This function is
3146  * invoked before either putting a HBA offline or unloading the driver.
3147  **/
3148 void
3149 lpfc_stop_hba_timers(struct lpfc_hba *phba)
3150 {
3151         if (phba->pport)
3152                 lpfc_stop_vport_timers(phba->pport);
3153         cancel_delayed_work_sync(&phba->eq_delay_work);
3154         cancel_delayed_work_sync(&phba->idle_stat_delay_work);
3155         del_timer_sync(&phba->sli.mbox_tmo);
3156         del_timer_sync(&phba->fabric_block_timer);
3157         del_timer_sync(&phba->eratt_poll);
3158         del_timer_sync(&phba->hb_tmofunc);
3159         if (phba->sli_rev == LPFC_SLI_REV4) {
3160                 del_timer_sync(&phba->rrq_tmr);
3161                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
3162         }
3163         phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
3164
3165         switch (phba->pci_dev_grp) {
3166         case LPFC_PCI_DEV_LP:
3167                 /* Stop any LightPulse device specific driver timers */
3168                 del_timer_sync(&phba->fcp_poll_timer);
3169                 break;
3170         case LPFC_PCI_DEV_OC:
3171                 /* Stop any OneConnect device specific driver timers */
3172                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3173                 break;
3174         default:
3175                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3176                                 "0297 Invalid device group (x%x)\n",
3177                                 phba->pci_dev_grp);
3178                 break;
3179         }
3180         return;
3181 }
3182
3183 /**
3184  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
3185  * @phba: pointer to lpfc hba data structure.
3186  * @mbx_action: flag for mailbox no wait action.
3187  *
3188  * This routine marks a HBA's management interface as blocked. Once the HBA's
3189  * management interface is marked as blocked, all the user space access to
3190  * the HBA, whether they are from sysfs interface or libdfc interface will
3191  * all be blocked. The HBA is set to block the management interface when the
3192  * driver prepares the HBA interface for online or offline.
3193  **/
3194 static void
3195 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
3196 {
3197         unsigned long iflag;
3198         uint8_t actcmd = MBX_HEARTBEAT;
3199         unsigned long timeout;
3200
3201         spin_lock_irqsave(&phba->hbalock, iflag);
3202         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
3203         spin_unlock_irqrestore(&phba->hbalock, iflag);
3204         if (mbx_action == LPFC_MBX_NO_WAIT)
3205                 return;
3206         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
3207         spin_lock_irqsave(&phba->hbalock, iflag);
3208         if (phba->sli.mbox_active) {
3209                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
3210                 /* Determine how long we might wait for the active mailbox
3211                  * command to be gracefully completed by firmware.
3212                  */
3213                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
3214                                 phba->sli.mbox_active) * 1000) + jiffies;
3215         }
3216         spin_unlock_irqrestore(&phba->hbalock, iflag);
3217
3218         /* Wait for the outstnading mailbox command to complete */
3219         while (phba->sli.mbox_active) {
3220                 /* Check active mailbox complete status every 2ms */
3221                 msleep(2);
3222                 if (time_after(jiffies, timeout)) {
3223                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3224                                         "2813 Mgmt IO is Blocked %x "
3225                                         "- mbox cmd %x still active\n",
3226                                         phba->sli.sli_flag, actcmd);
3227                         break;
3228                 }
3229         }
3230 }
3231
3232 /**
3233  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3234  * @phba: pointer to lpfc hba data structure.
3235  *
3236  * Allocate RPIs for all active remote nodes. This is needed whenever
3237  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3238  * is to fixup the temporary rpi assignments.
3239  **/
3240 void
3241 lpfc_sli4_node_prep(struct lpfc_hba *phba)
3242 {
3243         struct lpfc_nodelist  *ndlp, *next_ndlp;
3244         struct lpfc_vport **vports;
3245         int i, rpi;
3246
3247         if (phba->sli_rev != LPFC_SLI_REV4)
3248                 return;
3249
3250         vports = lpfc_create_vport_work_array(phba);
3251         if (vports == NULL)
3252                 return;
3253
3254         for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3255                 if (vports[i]->load_flag & FC_UNLOADING)
3256                         continue;
3257
3258                 list_for_each_entry_safe(ndlp, next_ndlp,
3259                                          &vports[i]->fc_nodes,
3260                                          nlp_listp) {
3261                         rpi = lpfc_sli4_alloc_rpi(phba);
3262                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
3263                                 /* TODO print log? */
3264                                 continue;
3265                         }
3266                         ndlp->nlp_rpi = rpi;
3267                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
3268                                          LOG_NODE | LOG_DISCOVERY,
3269                                          "0009 Assign RPI x%x to ndlp x%px "
3270                                          "DID:x%06x flg:x%x\n",
3271                                          ndlp->nlp_rpi, ndlp, ndlp->nlp_DID,
3272                                          ndlp->nlp_flag);
3273                 }
3274         }
3275         lpfc_destroy_vport_work_array(phba, vports);
3276 }
3277
3278 /**
3279  * lpfc_create_expedite_pool - create expedite pool
3280  * @phba: pointer to lpfc hba data structure.
3281  *
3282  * This routine moves a batch of XRIs from lpfc_io_buf_list_put of HWQ 0
3283  * to expedite pool. Mark them as expedite.
3284  **/
3285 static void lpfc_create_expedite_pool(struct lpfc_hba *phba)
3286 {
3287         struct lpfc_sli4_hdw_queue *qp;
3288         struct lpfc_io_buf *lpfc_ncmd;
3289         struct lpfc_io_buf *lpfc_ncmd_next;
3290         struct lpfc_epd_pool *epd_pool;
3291         unsigned long iflag;
3292
3293         epd_pool = &phba->epd_pool;
3294         qp = &phba->sli4_hba.hdwq[0];
3295
3296         spin_lock_init(&epd_pool->lock);
3297         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3298         spin_lock(&epd_pool->lock);
3299         INIT_LIST_HEAD(&epd_pool->list);
3300         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3301                                  &qp->lpfc_io_buf_list_put, list) {
3302                 list_move_tail(&lpfc_ncmd->list, &epd_pool->list);
3303                 lpfc_ncmd->expedite = true;
3304                 qp->put_io_bufs--;
3305                 epd_pool->count++;
3306                 if (epd_pool->count >= XRI_BATCH)
3307                         break;
3308         }
3309         spin_unlock(&epd_pool->lock);
3310         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3311 }
3312
3313 /**
3314  * lpfc_destroy_expedite_pool - destroy expedite pool
3315  * @phba: pointer to lpfc hba data structure.
3316  *
3317  * This routine returns XRIs from expedite pool to lpfc_io_buf_list_put
3318  * of HWQ 0. Clear the mark.
3319  **/
3320 static void lpfc_destroy_expedite_pool(struct lpfc_hba *phba)
3321 {
3322         struct lpfc_sli4_hdw_queue *qp;
3323         struct lpfc_io_buf *lpfc_ncmd;
3324         struct lpfc_io_buf *lpfc_ncmd_next;
3325         struct lpfc_epd_pool *epd_pool;
3326         unsigned long iflag;
3327
3328         epd_pool = &phba->epd_pool;
3329         qp = &phba->sli4_hba.hdwq[0];
3330
3331         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3332         spin_lock(&epd_pool->lock);
3333         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3334                                  &epd_pool->list, list) {
3335                 list_move_tail(&lpfc_ncmd->list,
3336                                &qp->lpfc_io_buf_list_put);
3337                 lpfc_ncmd->flags = false;
3338                 qp->put_io_bufs++;
3339                 epd_pool->count--;
3340         }
3341         spin_unlock(&epd_pool->lock);
3342         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3343 }
3344
3345 /**
3346  * lpfc_create_multixri_pools - create multi-XRI pools
3347  * @phba: pointer to lpfc hba data structure.
3348  *
3349  * This routine initialize public, private per HWQ. Then, move XRIs from
3350  * lpfc_io_buf_list_put to public pool. High and low watermark are also
3351  * Initialized.
3352  **/
3353 void lpfc_create_multixri_pools(struct lpfc_hba *phba)
3354 {
3355         u32 i, j;
3356         u32 hwq_count;
3357         u32 count_per_hwq;
3358         struct lpfc_io_buf *lpfc_ncmd;
3359         struct lpfc_io_buf *lpfc_ncmd_next;
3360         unsigned long iflag;
3361         struct lpfc_sli4_hdw_queue *qp;
3362         struct lpfc_multixri_pool *multixri_pool;
3363         struct lpfc_pbl_pool *pbl_pool;
3364         struct lpfc_pvt_pool *pvt_pool;
3365
3366         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3367                         "1234 num_hdw_queue=%d num_present_cpu=%d common_xri_cnt=%d\n",
3368                         phba->cfg_hdw_queue, phba->sli4_hba.num_present_cpu,
3369                         phba->sli4_hba.io_xri_cnt);
3370
3371         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3372                 lpfc_create_expedite_pool(phba);
3373
3374         hwq_count = phba->cfg_hdw_queue;
3375         count_per_hwq = phba->sli4_hba.io_xri_cnt / hwq_count;
3376
3377         for (i = 0; i < hwq_count; i++) {
3378                 multixri_pool = kzalloc(sizeof(*multixri_pool), GFP_KERNEL);
3379
3380                 if (!multixri_pool) {
3381                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3382                                         "1238 Failed to allocate memory for "
3383                                         "multixri_pool\n");
3384
3385                         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3386                                 lpfc_destroy_expedite_pool(phba);
3387
3388                         j = 0;
3389                         while (j < i) {
3390                                 qp = &phba->sli4_hba.hdwq[j];
3391                                 kfree(qp->p_multixri_pool);
3392                                 j++;
3393                         }
3394                         phba->cfg_xri_rebalancing = 0;
3395                         return;
3396                 }
3397
3398                 qp = &phba->sli4_hba.hdwq[i];
3399                 qp->p_multixri_pool = multixri_pool;
3400
3401                 multixri_pool->xri_limit = count_per_hwq;
3402                 multixri_pool->rrb_next_hwqid = i;
3403
3404                 /* Deal with public free xri pool */
3405                 pbl_pool = &multixri_pool->pbl_pool;
3406                 spin_lock_init(&pbl_pool->lock);
3407                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3408                 spin_lock(&pbl_pool->lock);
3409                 INIT_LIST_HEAD(&pbl_pool->list);
3410                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3411                                          &qp->lpfc_io_buf_list_put, list) {
3412                         list_move_tail(&lpfc_ncmd->list, &pbl_pool->list);
3413                         qp->put_io_bufs--;
3414                         pbl_pool->count++;
3415                 }
3416                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3417                                 "1235 Moved %d buffers from PUT list over to pbl_pool[%d]\n",
3418                                 pbl_pool->count, i);
3419                 spin_unlock(&pbl_pool->lock);
3420                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3421
3422                 /* Deal with private free xri pool */
3423                 pvt_pool = &multixri_pool->pvt_pool;
3424                 pvt_pool->high_watermark = multixri_pool->xri_limit / 2;
3425                 pvt_pool->low_watermark = XRI_BATCH;
3426                 spin_lock_init(&pvt_pool->lock);
3427                 spin_lock_irqsave(&pvt_pool->lock, iflag);
3428                 INIT_LIST_HEAD(&pvt_pool->list);
3429                 pvt_pool->count = 0;
3430                 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
3431         }
3432 }
3433
3434 /**
3435  * lpfc_destroy_multixri_pools - destroy multi-XRI pools
3436  * @phba: pointer to lpfc hba data structure.
3437  *
3438  * This routine returns XRIs from public/private to lpfc_io_buf_list_put.
3439  **/
3440 static void lpfc_destroy_multixri_pools(struct lpfc_hba *phba)
3441 {
3442         u32 i;
3443         u32 hwq_count;
3444         struct lpfc_io_buf *lpfc_ncmd;
3445         struct lpfc_io_buf *lpfc_ncmd_next;
3446         unsigned long iflag;
3447         struct lpfc_sli4_hdw_queue *qp;
3448         struct lpfc_multixri_pool *multixri_pool;
3449         struct lpfc_pbl_pool *pbl_pool;
3450         struct lpfc_pvt_pool *pvt_pool;
3451
3452         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3453                 lpfc_destroy_expedite_pool(phba);
3454
3455         if (!(phba->pport->load_flag & FC_UNLOADING))
3456                 lpfc_sli_flush_io_rings(phba);
3457
3458         hwq_count = phba->cfg_hdw_queue;
3459
3460         for (i = 0; i < hwq_count; i++) {
3461                 qp = &phba->sli4_hba.hdwq[i];
3462                 multixri_pool = qp->p_multixri_pool;
3463                 if (!multixri_pool)
3464                         continue;
3465
3466                 qp->p_multixri_pool = NULL;
3467
3468                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3469
3470                 /* Deal with public free xri pool */
3471                 pbl_pool = &multixri_pool->pbl_pool;
3472                 spin_lock(&pbl_pool->lock);
3473
3474                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3475                                 "1236 Moving %d buffers from pbl_pool[%d] TO PUT list\n",
3476                                 pbl_pool->count, i);
3477
3478                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3479                                          &pbl_pool->list, list) {
3480                         list_move_tail(&lpfc_ncmd->list,
3481                                        &qp->lpfc_io_buf_list_put);
3482                         qp->put_io_bufs++;
3483                         pbl_pool->count--;
3484                 }
3485
3486                 INIT_LIST_HEAD(&pbl_pool->list);
3487                 pbl_pool->count = 0;
3488
3489                 spin_unlock(&pbl_pool->lock);
3490
3491                 /* Deal with private free xri pool */
3492                 pvt_pool = &multixri_pool->pvt_pool;
3493                 spin_lock(&pvt_pool->lock);
3494
3495                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3496                                 "1237 Moving %d buffers from pvt_pool[%d] TO PUT list\n",
3497                                 pvt_pool->count, i);
3498
3499                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3500                                          &pvt_pool->list, list) {
3501                         list_move_tail(&lpfc_ncmd->list,
3502                                        &qp->lpfc_io_buf_list_put);
3503                         qp->put_io_bufs++;
3504                         pvt_pool->count--;
3505                 }
3506
3507                 INIT_LIST_HEAD(&pvt_pool->list);
3508                 pvt_pool->count = 0;
3509
3510                 spin_unlock(&pvt_pool->lock);
3511                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3512
3513                 kfree(multixri_pool);
3514         }
3515 }
3516
3517 /**
3518  * lpfc_online - Initialize and bring a HBA online
3519  * @phba: pointer to lpfc hba data structure.
3520  *
3521  * This routine initializes the HBA and brings a HBA online. During this
3522  * process, the management interface is blocked to prevent user space access
3523  * to the HBA interfering with the driver initialization.
3524  *
3525  * Return codes
3526  *   0 - successful
3527  *   1 - failed
3528  **/
3529 int
3530 lpfc_online(struct lpfc_hba *phba)
3531 {
3532         struct lpfc_vport *vport;
3533         struct lpfc_vport **vports;
3534         int i, error = 0;
3535         bool vpis_cleared = false;
3536
3537         if (!phba)
3538                 return 0;
3539         vport = phba->pport;
3540
3541         if (!(vport->fc_flag & FC_OFFLINE_MODE))
3542                 return 0;
3543
3544         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3545                         "0458 Bring Adapter online\n");
3546
3547         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3548
3549         if (phba->sli_rev == LPFC_SLI_REV4) {
3550                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3551                         lpfc_unblock_mgmt_io(phba);
3552                         return 1;
3553                 }
3554                 spin_lock_irq(&phba->hbalock);
3555                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3556                         vpis_cleared = true;
3557                 spin_unlock_irq(&phba->hbalock);
3558
3559                 /* Reestablish the local initiator port.
3560                  * The offline process destroyed the previous lport.
3561                  */
3562                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3563                                 !phba->nvmet_support) {
3564                         error = lpfc_nvme_create_localport(phba->pport);
3565                         if (error)
3566                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3567                                         "6132 NVME restore reg failed "
3568                                         "on nvmei error x%x\n", error);
3569                 }
3570         } else {
3571                 lpfc_sli_queue_init(phba);
3572                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3573                         lpfc_unblock_mgmt_io(phba);
3574                         return 1;
3575                 }
3576         }
3577
3578         vports = lpfc_create_vport_work_array(phba);
3579         if (vports != NULL) {
3580                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3581                         struct Scsi_Host *shost;
3582                         shost = lpfc_shost_from_vport(vports[i]);
3583                         spin_lock_irq(shost->host_lock);
3584                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3585                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3586                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3587                         if (phba->sli_rev == LPFC_SLI_REV4) {
3588                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3589                                 if ((vpis_cleared) &&
3590                                     (vports[i]->port_type !=
3591                                         LPFC_PHYSICAL_PORT))
3592                                         vports[i]->vpi = 0;
3593                         }
3594                         spin_unlock_irq(shost->host_lock);
3595                 }
3596         }
3597         lpfc_destroy_vport_work_array(phba, vports);
3598
3599         if (phba->cfg_xri_rebalancing)
3600                 lpfc_create_multixri_pools(phba);
3601
3602         lpfc_cpuhp_add(phba);
3603
3604         lpfc_unblock_mgmt_io(phba);
3605         return 0;
3606 }
3607
3608 /**
3609  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3610  * @phba: pointer to lpfc hba data structure.
3611  *
3612  * This routine marks a HBA's management interface as not blocked. Once the
3613  * HBA's management interface is marked as not blocked, all the user space
3614  * access to the HBA, whether they are from sysfs interface or libdfc
3615  * interface will be allowed. The HBA is set to block the management interface
3616  * when the driver prepares the HBA interface for online or offline and then
3617  * set to unblock the management interface afterwards.
3618  **/
3619 void
3620 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3621 {
3622         unsigned long iflag;
3623
3624         spin_lock_irqsave(&phba->hbalock, iflag);
3625         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3626         spin_unlock_irqrestore(&phba->hbalock, iflag);
3627 }
3628
3629 /**
3630  * lpfc_offline_prep - Prepare a HBA to be brought offline
3631  * @phba: pointer to lpfc hba data structure.
3632  * @mbx_action: flag for mailbox shutdown action.
3633  *
3634  * This routine is invoked to prepare a HBA to be brought offline. It performs
3635  * unregistration login to all the nodes on all vports and flushes the mailbox
3636  * queue to make it ready to be brought offline.
3637  **/
3638 void
3639 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3640 {
3641         struct lpfc_vport *vport = phba->pport;
3642         struct lpfc_nodelist  *ndlp, *next_ndlp;
3643         struct lpfc_vport **vports;
3644         struct Scsi_Host *shost;
3645         int i;
3646
3647         if (vport->fc_flag & FC_OFFLINE_MODE)
3648                 return;
3649
3650         lpfc_block_mgmt_io(phba, mbx_action);
3651
3652         lpfc_linkdown(phba);
3653
3654         /* Issue an unreg_login to all nodes on all vports */
3655         vports = lpfc_create_vport_work_array(phba);
3656         if (vports != NULL) {
3657                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3658                         if (vports[i]->load_flag & FC_UNLOADING)
3659                                 continue;
3660                         shost = lpfc_shost_from_vport(vports[i]);
3661                         spin_lock_irq(shost->host_lock);
3662                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3663                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3664                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3665                         spin_unlock_irq(shost->host_lock);
3666
3667                         shost = lpfc_shost_from_vport(vports[i]);
3668                         list_for_each_entry_safe(ndlp, next_ndlp,
3669                                                  &vports[i]->fc_nodes,
3670                                                  nlp_listp) {
3671
3672                                 spin_lock_irq(&ndlp->lock);
3673                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3674                                 spin_unlock_irq(&ndlp->lock);
3675
3676                                 lpfc_unreg_rpi(vports[i], ndlp);
3677                                 /*
3678                                  * Whenever an SLI4 port goes offline, free the
3679                                  * RPI. Get a new RPI when the adapter port
3680                                  * comes back online.
3681                                  */
3682                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3683                                         lpfc_printf_vlog(vports[i], KERN_INFO,
3684                                                  LOG_NODE | LOG_DISCOVERY,
3685                                                  "0011 Free RPI x%x on "
3686                                                  "ndlp: x%px did x%x\n",
3687                                                  ndlp->nlp_rpi, ndlp,
3688                                                  ndlp->nlp_DID);
3689                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3690                                         ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
3691                                 }
3692
3693                                 if (ndlp->nlp_type & NLP_FABRIC) {
3694                                         lpfc_disc_state_machine(vports[i], ndlp,
3695                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3696
3697                                         /* Don't remove the node unless the node
3698                                          * has been unregistered with the
3699                                          * transport, and we're not in recovery
3700                                          * before dev_loss_tmo triggered.
3701                                          * Otherwise, let dev_loss take care of
3702                                          * the node.
3703                                          */
3704                                         if (!(ndlp->save_flags &
3705                                               NLP_IN_RECOV_POST_DEV_LOSS) &&
3706                                             !(ndlp->fc4_xpt_flags &
3707                                               (NVME_XPT_REGD | SCSI_XPT_REGD)))
3708                                                 lpfc_disc_state_machine
3709                                                         (vports[i], ndlp,
3710                                                          NULL,
3711                                                          NLP_EVT_DEVICE_RM);
3712                                 }
3713                         }
3714                 }
3715         }
3716         lpfc_destroy_vport_work_array(phba, vports);
3717
3718         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3719
3720         if (phba->wq)
3721                 flush_workqueue(phba->wq);
3722 }
3723
3724 /**
3725  * lpfc_offline - Bring a HBA offline
3726  * @phba: pointer to lpfc hba data structure.
3727  *
3728  * This routine actually brings a HBA offline. It stops all the timers
3729  * associated with the HBA, brings down the SLI layer, and eventually
3730  * marks the HBA as in offline state for the upper layer protocol.
3731  **/
3732 void
3733 lpfc_offline(struct lpfc_hba *phba)
3734 {
3735         struct Scsi_Host  *shost;
3736         struct lpfc_vport **vports;
3737         int i;
3738
3739         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3740                 return;
3741
3742         /* stop port and all timers associated with this hba */
3743         lpfc_stop_port(phba);
3744
3745         /* Tear down the local and target port registrations.  The
3746          * nvme transports need to cleanup.
3747          */
3748         lpfc_nvmet_destroy_targetport(phba);
3749         lpfc_nvme_destroy_localport(phba->pport);
3750
3751         vports = lpfc_create_vport_work_array(phba);
3752         if (vports != NULL)
3753                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3754                         lpfc_stop_vport_timers(vports[i]);
3755         lpfc_destroy_vport_work_array(phba, vports);
3756         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3757                         "0460 Bring Adapter offline\n");
3758         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3759            now.  */
3760         lpfc_sli_hba_down(phba);
3761         spin_lock_irq(&phba->hbalock);
3762         phba->work_ha = 0;
3763         spin_unlock_irq(&phba->hbalock);
3764         vports = lpfc_create_vport_work_array(phba);
3765         if (vports != NULL)
3766                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3767                         shost = lpfc_shost_from_vport(vports[i]);
3768                         spin_lock_irq(shost->host_lock);
3769                         vports[i]->work_port_events = 0;
3770                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3771                         spin_unlock_irq(shost->host_lock);
3772                 }
3773         lpfc_destroy_vport_work_array(phba, vports);
3774         /* If OFFLINE flag is clear (i.e. unloading), cpuhp removal is handled
3775          * in hba_unset
3776          */
3777         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3778                 __lpfc_cpuhp_remove(phba);
3779
3780         if (phba->cfg_xri_rebalancing)
3781                 lpfc_destroy_multixri_pools(phba);
3782 }
3783
3784 /**
3785  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3786  * @phba: pointer to lpfc hba data structure.
3787  *
3788  * This routine is to free all the SCSI buffers and IOCBs from the driver
3789  * list back to kernel. It is called from lpfc_pci_remove_one to free
3790  * the internal resources before the device is removed from the system.
3791  **/
3792 static void
3793 lpfc_scsi_free(struct lpfc_hba *phba)
3794 {
3795         struct lpfc_io_buf *sb, *sb_next;
3796
3797         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3798                 return;
3799
3800         spin_lock_irq(&phba->hbalock);
3801
3802         /* Release all the lpfc_scsi_bufs maintained by this host. */
3803
3804         spin_lock(&phba->scsi_buf_list_put_lock);
3805         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3806                                  list) {
3807                 list_del(&sb->list);
3808                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3809                               sb->dma_handle);
3810                 kfree(sb);
3811                 phba->total_scsi_bufs--;
3812         }
3813         spin_unlock(&phba->scsi_buf_list_put_lock);
3814
3815         spin_lock(&phba->scsi_buf_list_get_lock);
3816         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3817                                  list) {
3818                 list_del(&sb->list);
3819                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3820                               sb->dma_handle);
3821                 kfree(sb);
3822                 phba->total_scsi_bufs--;
3823         }
3824         spin_unlock(&phba->scsi_buf_list_get_lock);
3825         spin_unlock_irq(&phba->hbalock);
3826 }
3827
3828 /**
3829  * lpfc_io_free - Free all the IO buffers and IOCBs from driver lists
3830  * @phba: pointer to lpfc hba data structure.
3831  *
3832  * This routine is to free all the IO buffers and IOCBs from the driver
3833  * list back to kernel. It is called from lpfc_pci_remove_one to free
3834  * the internal resources before the device is removed from the system.
3835  **/
3836 void
3837 lpfc_io_free(struct lpfc_hba *phba)
3838 {
3839         struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
3840         struct lpfc_sli4_hdw_queue *qp;
3841         int idx;
3842
3843         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3844                 qp = &phba->sli4_hba.hdwq[idx];
3845                 /* Release all the lpfc_nvme_bufs maintained by this host. */
3846                 spin_lock(&qp->io_buf_list_put_lock);
3847                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3848                                          &qp->lpfc_io_buf_list_put,
3849                                          list) {
3850                         list_del(&lpfc_ncmd->list);
3851                         qp->put_io_bufs--;
3852                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3853                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3854                         if (phba->cfg_xpsgl && !phba->nvmet_support)
3855                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3856                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3857                         kfree(lpfc_ncmd);
3858                         qp->total_io_bufs--;
3859                 }
3860                 spin_unlock(&qp->io_buf_list_put_lock);
3861
3862                 spin_lock(&qp->io_buf_list_get_lock);
3863                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3864                                          &qp->lpfc_io_buf_list_get,
3865                                          list) {
3866                         list_del(&lpfc_ncmd->list);
3867                         qp->get_io_bufs--;
3868                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3869                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3870                         if (phba->cfg_xpsgl && !phba->nvmet_support)
3871                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3872                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3873                         kfree(lpfc_ncmd);
3874                         qp->total_io_bufs--;
3875                 }
3876                 spin_unlock(&qp->io_buf_list_get_lock);
3877         }
3878 }
3879
3880 /**
3881  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3882  * @phba: pointer to lpfc hba data structure.
3883  *
3884  * This routine first calculates the sizes of the current els and allocated
3885  * scsi sgl lists, and then goes through all sgls to updates the physical
3886  * XRIs assigned due to port function reset. During port initialization, the
3887  * current els and allocated scsi sgl lists are 0s.
3888  *
3889  * Return codes
3890  *   0 - successful (for now, it always returns 0)
3891  **/
3892 int
3893 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3894 {
3895         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3896         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3897         LIST_HEAD(els_sgl_list);
3898         int rc;
3899
3900         /*
3901          * update on pci function's els xri-sgl list
3902          */
3903         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3904
3905         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3906                 /* els xri-sgl expanded */
3907                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3908                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3909                                 "3157 ELS xri-sgl count increased from "
3910                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3911                                 els_xri_cnt);
3912                 /* allocate the additional els sgls */
3913                 for (i = 0; i < xri_cnt; i++) {
3914                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3915                                              GFP_KERNEL);
3916                         if (sglq_entry == NULL) {
3917                                 lpfc_printf_log(phba, KERN_ERR,
3918                                                 LOG_TRACE_EVENT,
3919                                                 "2562 Failure to allocate an "
3920                                                 "ELS sgl entry:%d\n", i);
3921                                 rc = -ENOMEM;
3922                                 goto out_free_mem;
3923                         }
3924                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3925                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3926                                                            &sglq_entry->phys);
3927                         if (sglq_entry->virt == NULL) {
3928                                 kfree(sglq_entry);
3929                                 lpfc_printf_log(phba, KERN_ERR,
3930                                                 LOG_TRACE_EVENT,
3931                                                 "2563 Failure to allocate an "
3932                                                 "ELS mbuf:%d\n", i);
3933                                 rc = -ENOMEM;
3934                                 goto out_free_mem;
3935                         }
3936                         sglq_entry->sgl = sglq_entry->virt;
3937                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3938                         sglq_entry->state = SGL_FREED;
3939                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3940                 }
3941                 spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
3942                 list_splice_init(&els_sgl_list,
3943                                  &phba->sli4_hba.lpfc_els_sgl_list);
3944                 spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
3945         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3946                 /* els xri-sgl shrinked */
3947                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3948                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3949                                 "3158 ELS xri-sgl count decreased from "
3950                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3951                                 els_xri_cnt);
3952                 spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
3953                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3954                                  &els_sgl_list);
3955                 /* release extra els sgls from list */
3956                 for (i = 0; i < xri_cnt; i++) {
3957                         list_remove_head(&els_sgl_list,
3958                                          sglq_entry, struct lpfc_sglq, list);
3959                         if (sglq_entry) {
3960                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
3961                                                  sglq_entry->phys);
3962                                 kfree(sglq_entry);
3963                         }
3964                 }
3965                 list_splice_init(&els_sgl_list,
3966                                  &phba->sli4_hba.lpfc_els_sgl_list);
3967                 spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
3968         } else
3969                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3970                                 "3163 ELS xri-sgl count unchanged: %d\n",
3971                                 els_xri_cnt);
3972         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3973
3974         /* update xris to els sgls on the list */
3975         sglq_entry = NULL;
3976         sglq_entry_next = NULL;
3977         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3978                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
3979                 lxri = lpfc_sli4_next_xritag(phba);
3980                 if (lxri == NO_XRI) {
3981                         lpfc_printf_log(phba, KERN_ERR,
3982                                         LOG_TRACE_EVENT,
3983                                         "2400 Failed to allocate xri for "
3984                                         "ELS sgl\n");
3985                         rc = -ENOMEM;
3986                         goto out_free_mem;
3987                 }
3988                 sglq_entry->sli4_lxritag = lxri;
3989                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3990         }
3991         return 0;
3992
3993 out_free_mem:
3994         lpfc_free_els_sgl_list(phba);
3995         return rc;
3996 }
3997
3998 /**
3999  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
4000  * @phba: pointer to lpfc hba data structure.
4001  *
4002  * This routine first calculates the sizes of the current els and allocated
4003  * scsi sgl lists, and then goes through all sgls to updates the physical
4004  * XRIs assigned due to port function reset. During port initialization, the
4005  * current els and allocated scsi sgl lists are 0s.
4006  *
4007  * Return codes
4008  *   0 - successful (for now, it always returns 0)
4009  **/
4010 int
4011 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
4012 {
4013         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
4014         uint16_t i, lxri, xri_cnt, els_xri_cnt;
4015         uint16_t nvmet_xri_cnt;
4016         LIST_HEAD(nvmet_sgl_list);
4017         int rc;
4018
4019         /*
4020          * update on pci function's nvmet xri-sgl list
4021          */
4022         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4023
4024         /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
4025         nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4026         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
4027                 /* els xri-sgl expanded */
4028                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
4029                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4030                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
4031                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
4032                 /* allocate the additional nvmet sgls */
4033                 for (i = 0; i < xri_cnt; i++) {
4034                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
4035                                              GFP_KERNEL);
4036                         if (sglq_entry == NULL) {
4037                                 lpfc_printf_log(phba, KERN_ERR,
4038                                                 LOG_TRACE_EVENT,
4039                                                 "6303 Failure to allocate an "
4040                                                 "NVMET sgl entry:%d\n", i);
4041                                 rc = -ENOMEM;
4042                                 goto out_free_mem;
4043                         }
4044                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
4045                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
4046                                                            &sglq_entry->phys);
4047                         if (sglq_entry->virt == NULL) {
4048                                 kfree(sglq_entry);
4049                                 lpfc_printf_log(phba, KERN_ERR,
4050                                                 LOG_TRACE_EVENT,
4051                                                 "6304 Failure to allocate an "
4052                                                 "NVMET buf:%d\n", i);
4053                                 rc = -ENOMEM;
4054                                 goto out_free_mem;
4055                         }
4056                         sglq_entry->sgl = sglq_entry->virt;
4057                         memset(sglq_entry->sgl, 0,
4058                                phba->cfg_sg_dma_buf_size);
4059                         sglq_entry->state = SGL_FREED;
4060                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
4061                 }
4062                 spin_lock_irq(&phba->hbalock);
4063                 spin_lock(&phba->sli4_hba.sgl_list_lock);
4064                 list_splice_init(&nvmet_sgl_list,
4065                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
4066                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
4067                 spin_unlock_irq(&phba->hbalock);
4068         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
4069                 /* nvmet xri-sgl shrunk */
4070                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
4071                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4072                                 "6305 NVMET xri-sgl count decreased from "
4073                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
4074                                 nvmet_xri_cnt);
4075                 spin_lock_irq(&phba->hbalock);
4076                 spin_lock(&phba->sli4_hba.sgl_list_lock);
4077                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
4078                                  &nvmet_sgl_list);
4079                 /* release extra nvmet sgls from list */
4080                 for (i = 0; i < xri_cnt; i++) {
4081                         list_remove_head(&nvmet_sgl_list,
4082                                          sglq_entry, struct lpfc_sglq, list);
4083                         if (sglq_entry) {
4084                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
4085                                                     sglq_entry->phys);
4086                                 kfree(sglq_entry);
4087                         }
4088                 }
4089                 list_splice_init(&nvmet_sgl_list,
4090                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
4091                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
4092                 spin_unlock_irq(&phba->hbalock);
4093         } else
4094                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4095                                 "6306 NVMET xri-sgl count unchanged: %d\n",
4096                                 nvmet_xri_cnt);
4097         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
4098
4099         /* update xris to nvmet sgls on the list */
4100         sglq_entry = NULL;
4101         sglq_entry_next = NULL;
4102         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
4103                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
4104                 lxri = lpfc_sli4_next_xritag(phba);
4105                 if (lxri == NO_XRI) {
4106                         lpfc_printf_log(phba, KERN_ERR,
4107                                         LOG_TRACE_EVENT,
4108                                         "6307 Failed to allocate xri for "
4109                                         "NVMET sgl\n");
4110                         rc = -ENOMEM;
4111                         goto out_free_mem;
4112                 }
4113                 sglq_entry->sli4_lxritag = lxri;
4114                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4115         }
4116         return 0;
4117
4118 out_free_mem:
4119         lpfc_free_nvmet_sgl_list(phba);
4120         return rc;
4121 }
4122
4123 int
4124 lpfc_io_buf_flush(struct lpfc_hba *phba, struct list_head *cbuf)
4125 {
4126         LIST_HEAD(blist);
4127         struct lpfc_sli4_hdw_queue *qp;
4128         struct lpfc_io_buf *lpfc_cmd;
4129         struct lpfc_io_buf *iobufp, *prev_iobufp;
4130         int idx, cnt, xri, inserted;
4131
4132         cnt = 0;
4133         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4134                 qp = &phba->sli4_hba.hdwq[idx];
4135                 spin_lock_irq(&qp->io_buf_list_get_lock);
4136                 spin_lock(&qp->io_buf_list_put_lock);
4137
4138                 /* Take everything off the get and put lists */
4139                 list_splice_init(&qp->lpfc_io_buf_list_get, &blist);
4140                 list_splice(&qp->lpfc_io_buf_list_put, &blist);
4141                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
4142                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
4143                 cnt += qp->get_io_bufs + qp->put_io_bufs;
4144                 qp->get_io_bufs = 0;
4145                 qp->put_io_bufs = 0;
4146                 qp->total_io_bufs = 0;
4147                 spin_unlock(&qp->io_buf_list_put_lock);
4148                 spin_unlock_irq(&qp->io_buf_list_get_lock);
4149         }
4150
4151         /*
4152          * Take IO buffers off blist and put on cbuf sorted by XRI.
4153          * This is because POST_SGL takes a sequential range of XRIs
4154          * to post to the firmware.
4155          */
4156         for (idx = 0; idx < cnt; idx++) {
4157                 list_remove_head(&blist, lpfc_cmd, struct lpfc_io_buf, list);
4158                 if (!lpfc_cmd)
4159                         return cnt;
4160                 if (idx == 0) {
4161                         list_add_tail(&lpfc_cmd->list, cbuf);
4162                         continue;
4163                 }
4164                 xri = lpfc_cmd->cur_iocbq.sli4_xritag;
4165                 inserted = 0;
4166                 prev_iobufp = NULL;
4167                 list_for_each_entry(iobufp, cbuf, list) {
4168                         if (xri < iobufp->cur_iocbq.sli4_xritag) {
4169                                 if (prev_iobufp)
4170                                         list_add(&lpfc_cmd->list,
4171                                                  &prev_iobufp->list);
4172                                 else
4173                                         list_add(&lpfc_cmd->list, cbuf);
4174                                 inserted = 1;
4175                                 break;
4176                         }
4177                         prev_iobufp = iobufp;
4178                 }
4179                 if (!inserted)
4180                         list_add_tail(&lpfc_cmd->list, cbuf);
4181         }
4182         return cnt;
4183 }
4184
4185 int
4186 lpfc_io_buf_replenish(struct lpfc_hba *phba, struct list_head *cbuf)
4187 {
4188         struct lpfc_sli4_hdw_queue *qp;
4189         struct lpfc_io_buf *lpfc_cmd;
4190         int idx, cnt;
4191
4192         qp = phba->sli4_hba.hdwq;
4193         cnt = 0;
4194         while (!list_empty(cbuf)) {
4195                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4196                         list_remove_head(cbuf, lpfc_cmd,
4197                                          struct lpfc_io_buf, list);
4198                         if (!lpfc_cmd)
4199                                 return cnt;
4200                         cnt++;
4201                         qp = &phba->sli4_hba.hdwq[idx];
4202                         lpfc_cmd->hdwq_no = idx;
4203                         lpfc_cmd->hdwq = qp;
4204                         lpfc_cmd->cur_iocbq.wqe_cmpl = NULL;
4205                         lpfc_cmd->cur_iocbq.iocb_cmpl = NULL;
4206                         spin_lock(&qp->io_buf_list_put_lock);
4207                         list_add_tail(&lpfc_cmd->list,
4208                                       &qp->lpfc_io_buf_list_put);
4209                         qp->put_io_bufs++;
4210                         qp->total_io_bufs++;
4211                         spin_unlock(&qp->io_buf_list_put_lock);
4212                 }
4213         }
4214         return cnt;
4215 }
4216
4217 /**
4218  * lpfc_sli4_io_sgl_update - update xri-sgl sizing and mapping
4219  * @phba: pointer to lpfc hba data structure.
4220  *
4221  * This routine first calculates the sizes of the current els and allocated
4222  * scsi sgl lists, and then goes through all sgls to updates the physical
4223  * XRIs assigned due to port function reset. During port initialization, the
4224  * current els and allocated scsi sgl lists are 0s.
4225  *
4226  * Return codes
4227  *   0 - successful (for now, it always returns 0)
4228  **/
4229 int
4230 lpfc_sli4_io_sgl_update(struct lpfc_hba *phba)
4231 {
4232         struct lpfc_io_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
4233         uint16_t i, lxri, els_xri_cnt;
4234         uint16_t io_xri_cnt, io_xri_max;
4235         LIST_HEAD(io_sgl_list);
4236         int rc, cnt;
4237
4238         /*
4239          * update on pci function's allocated nvme xri-sgl list
4240          */
4241
4242         /* maximum number of xris available for nvme buffers */
4243         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4244         io_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4245         phba->sli4_hba.io_xri_max = io_xri_max;
4246
4247         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4248                         "6074 Current allocated XRI sgl count:%d, "
4249                         "maximum XRI count:%d\n",
4250                         phba->sli4_hba.io_xri_cnt,
4251                         phba->sli4_hba.io_xri_max);
4252
4253         cnt = lpfc_io_buf_flush(phba, &io_sgl_list);
4254
4255         if (phba->sli4_hba.io_xri_cnt > phba->sli4_hba.io_xri_max) {
4256                 /* max nvme xri shrunk below the allocated nvme buffers */
4257                 io_xri_cnt = phba->sli4_hba.io_xri_cnt -
4258                                         phba->sli4_hba.io_xri_max;
4259                 /* release the extra allocated nvme buffers */
4260                 for (i = 0; i < io_xri_cnt; i++) {
4261                         list_remove_head(&io_sgl_list, lpfc_ncmd,
4262                                          struct lpfc_io_buf, list);
4263                         if (lpfc_ncmd) {
4264                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4265                                               lpfc_ncmd->data,
4266                                               lpfc_ncmd->dma_handle);
4267                                 kfree(lpfc_ncmd);
4268                         }
4269                 }
4270                 phba->sli4_hba.io_xri_cnt -= io_xri_cnt;
4271         }
4272
4273         /* update xris associated to remaining allocated nvme buffers */
4274         lpfc_ncmd = NULL;
4275         lpfc_ncmd_next = NULL;
4276         phba->sli4_hba.io_xri_cnt = cnt;
4277         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4278                                  &io_sgl_list, list) {
4279                 lxri = lpfc_sli4_next_xritag(phba);
4280                 if (lxri == NO_XRI) {
4281                         lpfc_printf_log(phba, KERN_ERR,
4282                                         LOG_TRACE_EVENT,
4283                                         "6075 Failed to allocate xri for "
4284                                         "nvme buffer\n");
4285                         rc = -ENOMEM;
4286                         goto out_free_mem;
4287                 }
4288                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
4289                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4290         }
4291         cnt = lpfc_io_buf_replenish(phba, &io_sgl_list);
4292         return 0;
4293
4294 out_free_mem:
4295         lpfc_io_free(phba);
4296         return rc;
4297 }
4298
4299 /**
4300  * lpfc_new_io_buf - IO buffer allocator for HBA with SLI4 IF spec
4301  * @phba: Pointer to lpfc hba data structure.
4302  * @num_to_alloc: The requested number of buffers to allocate.
4303  *
4304  * This routine allocates nvme buffers for device with SLI-4 interface spec,
4305  * the nvme buffer contains all the necessary information needed to initiate
4306  * an I/O. After allocating up to @num_to_allocate IO buffers and put
4307  * them on a list, it post them to the port by using SGL block post.
4308  *
4309  * Return codes:
4310  *   int - number of IO buffers that were allocated and posted.
4311  *   0 = failure, less than num_to_alloc is a partial failure.
4312  **/
4313 int
4314 lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc)
4315 {
4316         struct lpfc_io_buf *lpfc_ncmd;
4317         struct lpfc_iocbq *pwqeq;
4318         uint16_t iotag, lxri = 0;
4319         int bcnt, num_posted;
4320         LIST_HEAD(prep_nblist);
4321         LIST_HEAD(post_nblist);
4322         LIST_HEAD(nvme_nblist);
4323
4324         phba->sli4_hba.io_xri_cnt = 0;
4325         for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
4326                 lpfc_ncmd = kzalloc(sizeof(*lpfc_ncmd), GFP_KERNEL);
4327                 if (!lpfc_ncmd)
4328                         break;
4329                 /*
4330                  * Get memory from the pci pool to map the virt space to
4331                  * pci bus space for an I/O. The DMA buffer includes the
4332                  * number of SGE's necessary to support the sg_tablesize.
4333                  */
4334                 lpfc_ncmd->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool,
4335                                                   GFP_KERNEL,
4336                                                   &lpfc_ncmd->dma_handle);
4337                 if (!lpfc_ncmd->data) {
4338                         kfree(lpfc_ncmd);
4339                         break;
4340                 }
4341
4342                 if (phba->cfg_xpsgl && !phba->nvmet_support) {
4343                         INIT_LIST_HEAD(&lpfc_ncmd->dma_sgl_xtra_list);
4344                 } else {
4345                         /*
4346                          * 4K Page alignment is CRITICAL to BlockGuard, double
4347                          * check to be sure.
4348                          */
4349                         if ((phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
4350                             (((unsigned long)(lpfc_ncmd->data) &
4351                             (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) {
4352                                 lpfc_printf_log(phba, KERN_ERR,
4353                                                 LOG_TRACE_EVENT,
4354                                                 "3369 Memory alignment err: "
4355                                                 "addr=%lx\n",
4356                                                 (unsigned long)lpfc_ncmd->data);
4357                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4358                                               lpfc_ncmd->data,
4359                                               lpfc_ncmd->dma_handle);
4360                                 kfree(lpfc_ncmd);
4361                                 break;
4362                         }
4363                 }
4364
4365                 INIT_LIST_HEAD(&lpfc_ncmd->dma_cmd_rsp_list);
4366
4367                 lxri = lpfc_sli4_next_xritag(phba);
4368                 if (lxri == NO_XRI) {
4369                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4370                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4371                         kfree(lpfc_ncmd);
4372                         break;
4373                 }
4374                 pwqeq = &lpfc_ncmd->cur_iocbq;
4375
4376                 /* Allocate iotag for lpfc_ncmd->cur_iocbq. */
4377                 iotag = lpfc_sli_next_iotag(phba, pwqeq);
4378                 if (iotag == 0) {
4379                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4380                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4381                         kfree(lpfc_ncmd);
4382                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4383                                         "6121 Failed to allocate IOTAG for"
4384                                         " XRI:0x%x\n", lxri);
4385                         lpfc_sli4_free_xri(phba, lxri);
4386                         break;
4387                 }
4388                 pwqeq->sli4_lxritag = lxri;
4389                 pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4390                 pwqeq->context1 = lpfc_ncmd;
4391
4392                 /* Initialize local short-hand pointers. */
4393                 lpfc_ncmd->dma_sgl = lpfc_ncmd->data;
4394                 lpfc_ncmd->dma_phys_sgl = lpfc_ncmd->dma_handle;
4395                 lpfc_ncmd->cur_iocbq.context1 = lpfc_ncmd;
4396                 spin_lock_init(&lpfc_ncmd->buf_lock);
4397
4398                 /* add the nvme buffer to a post list */
4399                 list_add_tail(&lpfc_ncmd->list, &post_nblist);
4400                 phba->sli4_hba.io_xri_cnt++;
4401         }
4402         lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
4403                         "6114 Allocate %d out of %d requested new NVME "
4404                         "buffers\n", bcnt, num_to_alloc);
4405
4406         /* post the list of nvme buffer sgls to port if available */
4407         if (!list_empty(&post_nblist))
4408                 num_posted = lpfc_sli4_post_io_sgl_list(
4409                                 phba, &post_nblist, bcnt);
4410         else
4411                 num_posted = 0;
4412
4413         return num_posted;
4414 }
4415
4416 static uint64_t
4417 lpfc_get_wwpn(struct lpfc_hba *phba)
4418 {
4419         uint64_t wwn;
4420         int rc;
4421         LPFC_MBOXQ_t *mboxq;
4422         MAILBOX_t *mb;
4423
4424         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4425                                                 GFP_KERNEL);
4426         if (!mboxq)
4427                 return (uint64_t)-1;
4428
4429         /* First get WWN of HBA instance */
4430         lpfc_read_nv(phba, mboxq);
4431         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4432         if (rc != MBX_SUCCESS) {
4433                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4434                                 "6019 Mailbox failed , mbxCmd x%x "
4435                                 "READ_NV, mbxStatus x%x\n",
4436                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4437                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
4438                 mempool_free(mboxq, phba->mbox_mem_pool);
4439                 return (uint64_t) -1;
4440         }
4441         mb = &mboxq->u.mb;
4442         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
4443         /* wwn is WWPN of HBA instance */
4444         mempool_free(mboxq, phba->mbox_mem_pool);
4445         if (phba->sli_rev == LPFC_SLI_REV4)
4446                 return be64_to_cpu(wwn);
4447         else
4448                 return rol64(wwn, 32);
4449 }
4450
4451 /**
4452  * lpfc_vmid_res_alloc - Allocates resources for VMID
4453  * @phba: pointer to lpfc hba data structure.
4454  * @vport: pointer to vport data structure
4455  *
4456  * This routine allocated the resources needed for the VMID.
4457  *
4458  * Return codes
4459  *      0 on Success
4460  *      Non-0 on Failure
4461  */
4462 static int
4463 lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport)
4464 {
4465         /* VMID feature is supported only on SLI4 */
4466         if (phba->sli_rev == LPFC_SLI_REV3) {
4467                 phba->cfg_vmid_app_header = 0;
4468                 phba->cfg_vmid_priority_tagging = 0;
4469         }
4470
4471         if (lpfc_is_vmid_enabled(phba)) {
4472                 vport->vmid =
4473                     kcalloc(phba->cfg_max_vmid, sizeof(struct lpfc_vmid),
4474                             GFP_KERNEL);
4475                 if (!vport->vmid)
4476                         return -ENOMEM;
4477
4478                 rwlock_init(&vport->vmid_lock);
4479
4480                 /* Set the VMID parameters for the vport */
4481                 vport->vmid_priority_tagging = phba->cfg_vmid_priority_tagging;
4482                 vport->vmid_inactivity_timeout =
4483                     phba->cfg_vmid_inactivity_timeout;
4484                 vport->max_vmid = phba->cfg_max_vmid;
4485                 vport->cur_vmid_cnt = 0;
4486
4487                 vport->vmid_priority_range = bitmap_zalloc
4488                         (LPFC_VMID_MAX_PRIORITY_RANGE, GFP_KERNEL);
4489
4490                 if (!vport->vmid_priority_range) {
4491                         kfree(vport->vmid);
4492                         return -ENOMEM;
4493                 }
4494
4495                 hash_init(vport->hash_table);
4496         }
4497         return 0;
4498 }
4499
4500 /**
4501  * lpfc_create_port - Create an FC port
4502  * @phba: pointer to lpfc hba data structure.
4503  * @instance: a unique integer ID to this FC port.
4504  * @dev: pointer to the device data structure.
4505  *
4506  * This routine creates a FC port for the upper layer protocol. The FC port
4507  * can be created on top of either a physical port or a virtual port provided
4508  * by the HBA. This routine also allocates a SCSI host data structure (shost)
4509  * and associates the FC port created before adding the shost into the SCSI
4510  * layer.
4511  *
4512  * Return codes
4513  *   @vport - pointer to the virtual N_Port data structure.
4514  *   NULL - port create failed.
4515  **/
4516 struct lpfc_vport *
4517 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
4518 {
4519         struct lpfc_vport *vport;
4520         struct Scsi_Host  *shost = NULL;
4521         struct scsi_host_template *template;
4522         int error = 0;
4523         int i;
4524         uint64_t wwn;
4525         bool use_no_reset_hba = false;
4526         int rc;
4527
4528         if (lpfc_no_hba_reset_cnt) {
4529                 if (phba->sli_rev < LPFC_SLI_REV4 &&
4530                     dev == &phba->pcidev->dev) {
4531                         /* Reset the port first */
4532                         lpfc_sli_brdrestart(phba);
4533                         rc = lpfc_sli_chipset_init(phba);
4534                         if (rc)
4535                                 return NULL;
4536                 }
4537                 wwn = lpfc_get_wwpn(phba);
4538         }
4539
4540         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
4541                 if (wwn == lpfc_no_hba_reset[i]) {
4542                         lpfc_printf_log(phba, KERN_ERR,
4543                                         LOG_TRACE_EVENT,
4544                                         "6020 Setting use_no_reset port=%llx\n",
4545                                         wwn);
4546                         use_no_reset_hba = true;
4547                         break;
4548                 }
4549         }
4550
4551         /* Seed template for SCSI host registration */
4552         if (dev == &phba->pcidev->dev) {
4553                 template = &phba->port_template;
4554
4555                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
4556                         /* Seed physical port template */
4557                         memcpy(template, &lpfc_template, sizeof(*template));
4558
4559                         if (use_no_reset_hba)
4560                                 /* template is for a no reset SCSI Host */
4561                                 template->eh_host_reset_handler = NULL;
4562
4563                         /* Template for all vports this physical port creates */
4564                         memcpy(&phba->vport_template, &lpfc_template,
4565                                sizeof(*template));
4566                         phba->vport_template.shost_attrs = lpfc_vport_attrs;
4567                         phba->vport_template.eh_bus_reset_handler = NULL;
4568                         phba->vport_template.eh_host_reset_handler = NULL;
4569                         phba->vport_template.vendor_id = 0;
4570
4571                         /* Initialize the host templates with updated value */
4572                         if (phba->sli_rev == LPFC_SLI_REV4) {
4573                                 template->sg_tablesize = phba->cfg_scsi_seg_cnt;
4574                                 phba->vport_template.sg_tablesize =
4575                                         phba->cfg_scsi_seg_cnt;
4576                         } else {
4577                                 template->sg_tablesize = phba->cfg_sg_seg_cnt;
4578                                 phba->vport_template.sg_tablesize =
4579                                         phba->cfg_sg_seg_cnt;
4580                         }
4581
4582                 } else {
4583                         /* NVMET is for physical port only */
4584                         memcpy(template, &lpfc_template_nvme,
4585                                sizeof(*template));
4586                 }
4587         } else {
4588                 template = &phba->vport_template;
4589         }
4590
4591         shost = scsi_host_alloc(template, sizeof(struct lpfc_vport));
4592         if (!shost)
4593                 goto out;
4594
4595         vport = (struct lpfc_vport *) shost->hostdata;
4596         vport->phba = phba;
4597         vport->load_flag |= FC_LOADING;
4598         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4599         vport->fc_rscn_flush = 0;
4600         lpfc_get_vport_cfgparam(vport);
4601
4602         /* Adjust value in vport */
4603         vport->cfg_enable_fc4_type = phba->cfg_enable_fc4_type;
4604
4605         shost->unique_id = instance;
4606         shost->max_id = LPFC_MAX_TARGET;
4607         shost->max_lun = vport->cfg_max_luns;
4608         shost->this_id = -1;
4609         shost->max_cmd_len = 16;
4610
4611         if (phba->sli_rev == LPFC_SLI_REV4) {
4612                 if (!phba->cfg_fcp_mq_threshold ||
4613                     phba->cfg_fcp_mq_threshold > phba->cfg_hdw_queue)
4614                         phba->cfg_fcp_mq_threshold = phba->cfg_hdw_queue;
4615
4616                 shost->nr_hw_queues = min_t(int, 2 * num_possible_nodes(),
4617                                             phba->cfg_fcp_mq_threshold);
4618
4619                 shost->dma_boundary =
4620                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
4621
4622                 if (phba->cfg_xpsgl && !phba->nvmet_support)
4623                         shost->sg_tablesize = LPFC_MAX_SG_TABLESIZE;
4624                 else
4625                         shost->sg_tablesize = phba->cfg_scsi_seg_cnt;
4626         } else
4627                 /* SLI-3 has a limited number of hardware queues (3),
4628                  * thus there is only one for FCP processing.
4629                  */
4630                 shost->nr_hw_queues = 1;
4631
4632         /*
4633          * Set initial can_queue value since 0 is no longer supported and
4634          * scsi_add_host will fail. This will be adjusted later based on the
4635          * max xri value determined in hba setup.
4636          */
4637         shost->can_queue = phba->cfg_hba_queue_depth - 10;
4638         if (dev != &phba->pcidev->dev) {
4639                 shost->transportt = lpfc_vport_transport_template;
4640                 vport->port_type = LPFC_NPIV_PORT;
4641         } else {
4642                 shost->transportt = lpfc_transport_template;
4643                 vport->port_type = LPFC_PHYSICAL_PORT;
4644         }
4645
4646         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4647                         "9081 CreatePort TMPLATE type %x TBLsize %d "
4648                         "SEGcnt %d/%d\n",
4649                         vport->port_type, shost->sg_tablesize,
4650                         phba->cfg_scsi_seg_cnt, phba->cfg_sg_seg_cnt);
4651
4652         /* Allocate the resources for VMID */
4653         rc = lpfc_vmid_res_alloc(phba, vport);
4654
4655         if (rc)
4656                 goto out;
4657
4658         /* Initialize all internally managed lists. */
4659         INIT_LIST_HEAD(&vport->fc_nodes);
4660         INIT_LIST_HEAD(&vport->rcv_buffer_list);
4661         spin_lock_init(&vport->work_port_lock);
4662
4663         timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
4664
4665         timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
4666
4667         timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
4668
4669         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4670                 lpfc_setup_bg(phba, shost);
4671
4672         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
4673         if (error)
4674                 goto out_put_shost;
4675
4676         spin_lock_irq(&phba->port_list_lock);
4677         list_add_tail(&vport->listentry, &phba->port_list);
4678         spin_unlock_irq(&phba->port_list_lock);
4679         return vport;
4680
4681 out_put_shost:
4682         kfree(vport->vmid);
4683         bitmap_free(vport->vmid_priority_range);
4684         scsi_host_put(shost);
4685 out:
4686         return NULL;
4687 }
4688
4689 /**
4690  * destroy_port -  destroy an FC port
4691  * @vport: pointer to an lpfc virtual N_Port data structure.
4692  *
4693  * This routine destroys a FC port from the upper layer protocol. All the
4694  * resources associated with the port are released.
4695  **/
4696 void
4697 destroy_port(struct lpfc_vport *vport)
4698 {
4699         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4700         struct lpfc_hba  *phba = vport->phba;
4701
4702         lpfc_debugfs_terminate(vport);
4703         fc_remove_host(shost);
4704         scsi_remove_host(shost);
4705
4706         spin_lock_irq(&phba->port_list_lock);
4707         list_del_init(&vport->listentry);
4708         spin_unlock_irq(&phba->port_list_lock);
4709
4710         lpfc_cleanup(vport);
4711         return;
4712 }
4713
4714 /**
4715  * lpfc_get_instance - Get a unique integer ID
4716  *
4717  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4718  * uses the kernel idr facility to perform the task.
4719  *
4720  * Return codes:
4721  *   instance - a unique integer ID allocated as the new instance.
4722  *   -1 - lpfc get instance failed.
4723  **/
4724 int
4725 lpfc_get_instance(void)
4726 {
4727         int ret;
4728
4729         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4730         return ret < 0 ? -1 : ret;
4731 }
4732
4733 /**
4734  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4735  * @shost: pointer to SCSI host data structure.
4736  * @time: elapsed time of the scan in jiffies.
4737  *
4738  * This routine is called by the SCSI layer with a SCSI host to determine
4739  * whether the scan host is finished.
4740  *
4741  * Note: there is no scan_start function as adapter initialization will have
4742  * asynchronously kicked off the link initialization.
4743  *
4744  * Return codes
4745  *   0 - SCSI host scan is not over yet.
4746  *   1 - SCSI host scan is over.
4747  **/
4748 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4749 {
4750         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4751         struct lpfc_hba   *phba = vport->phba;
4752         int stat = 0;
4753
4754         spin_lock_irq(shost->host_lock);
4755
4756         if (vport->load_flag & FC_UNLOADING) {
4757                 stat = 1;
4758                 goto finished;
4759         }
4760         if (time >= msecs_to_jiffies(30 * 1000)) {
4761                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4762                                 "0461 Scanning longer than 30 "
4763                                 "seconds.  Continuing initialization\n");
4764                 stat = 1;
4765                 goto finished;
4766         }
4767         if (time >= msecs_to_jiffies(15 * 1000) &&
4768             phba->link_state <= LPFC_LINK_DOWN) {
4769                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4770                                 "0465 Link down longer than 15 "
4771                                 "seconds.  Continuing initialization\n");
4772                 stat = 1;
4773                 goto finished;
4774         }
4775
4776         if (vport->port_state != LPFC_VPORT_READY)
4777                 goto finished;
4778         if (vport->num_disc_nodes || vport->fc_prli_sent)
4779                 goto finished;
4780         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4781                 goto finished;
4782         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4783                 goto finished;
4784
4785         stat = 1;
4786
4787 finished:
4788         spin_unlock_irq(shost->host_lock);
4789         return stat;
4790 }
4791
4792 static void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4793 {
4794         struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4795         struct lpfc_hba   *phba = vport->phba;
4796
4797         fc_host_supported_speeds(shost) = 0;
4798         /*
4799          * Avoid reporting supported link speed for FCoE as it can't be
4800          * controlled via FCoE.
4801          */
4802         if (phba->hba_flag & HBA_FCOE_MODE)
4803                 return;
4804
4805         if (phba->lmt & LMT_256Gb)
4806                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_256GBIT;
4807         if (phba->lmt & LMT_128Gb)
4808                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4809         if (phba->lmt & LMT_64Gb)
4810                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4811         if (phba->lmt & LMT_32Gb)
4812                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4813         if (phba->lmt & LMT_16Gb)
4814                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4815         if (phba->lmt & LMT_10Gb)
4816                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4817         if (phba->lmt & LMT_8Gb)
4818                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4819         if (phba->lmt & LMT_4Gb)
4820                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4821         if (phba->lmt & LMT_2Gb)
4822                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4823         if (phba->lmt & LMT_1Gb)
4824                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4825 }
4826
4827 /**
4828  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4829  * @shost: pointer to SCSI host data structure.
4830  *
4831  * This routine initializes a given SCSI host attributes on a FC port. The
4832  * SCSI host can be either on top of a physical port or a virtual port.
4833  **/
4834 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4835 {
4836         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4837         struct lpfc_hba   *phba = vport->phba;
4838         /*
4839          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
4840          */
4841
4842         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4843         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4844         fc_host_supported_classes(shost) = FC_COS_CLASS3;
4845
4846         memset(fc_host_supported_fc4s(shost), 0,
4847                sizeof(fc_host_supported_fc4s(shost)));
4848         fc_host_supported_fc4s(shost)[2] = 1;
4849         fc_host_supported_fc4s(shost)[7] = 1;
4850
4851         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4852                                  sizeof fc_host_symbolic_name(shost));
4853
4854         lpfc_host_supported_speeds_set(shost);
4855
4856         fc_host_maxframe_size(shost) =
4857                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4858                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4859
4860         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4861
4862         /* This value is also unchanging */
4863         memset(fc_host_active_fc4s(shost), 0,
4864                sizeof(fc_host_active_fc4s(shost)));
4865         fc_host_active_fc4s(shost)[2] = 1;
4866         fc_host_active_fc4s(shost)[7] = 1;
4867
4868         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4869         spin_lock_irq(shost->host_lock);
4870         vport->load_flag &= ~FC_LOADING;
4871         spin_unlock_irq(shost->host_lock);
4872 }
4873
4874 /**
4875  * lpfc_stop_port_s3 - Stop SLI3 device port
4876  * @phba: pointer to lpfc hba data structure.
4877  *
4878  * This routine is invoked to stop an SLI3 device port, it stops the device
4879  * from generating interrupts and stops the device driver's timers for the
4880  * device.
4881  **/
4882 static void
4883 lpfc_stop_port_s3(struct lpfc_hba *phba)
4884 {
4885         /* Clear all interrupt enable conditions */
4886         writel(0, phba->HCregaddr);
4887         readl(phba->HCregaddr); /* flush */
4888         /* Clear all pending interrupts */
4889         writel(0xffffffff, phba->HAregaddr);
4890         readl(phba->HAregaddr); /* flush */
4891
4892         /* Reset some HBA SLI setup states */
4893         lpfc_stop_hba_timers(phba);
4894         phba->pport->work_port_events = 0;
4895 }
4896
4897 /**
4898  * lpfc_stop_port_s4 - Stop SLI4 device port
4899  * @phba: pointer to lpfc hba data structure.
4900  *
4901  * This routine is invoked to stop an SLI4 device port, it stops the device
4902  * from generating interrupts and stops the device driver's timers for the
4903  * device.
4904  **/
4905 static void
4906 lpfc_stop_port_s4(struct lpfc_hba *phba)
4907 {
4908         /* Reset some HBA SLI4 setup states */
4909         lpfc_stop_hba_timers(phba);
4910         if (phba->pport)
4911                 phba->pport->work_port_events = 0;
4912         phba->sli4_hba.intr_enable = 0;
4913 }
4914
4915 /**
4916  * lpfc_stop_port - Wrapper function for stopping hba port
4917  * @phba: Pointer to HBA context object.
4918  *
4919  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4920  * the API jump table function pointer from the lpfc_hba struct.
4921  **/
4922 void
4923 lpfc_stop_port(struct lpfc_hba *phba)
4924 {
4925         phba->lpfc_stop_port(phba);
4926
4927         if (phba->wq)
4928                 flush_workqueue(phba->wq);
4929 }
4930
4931 /**
4932  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4933  * @phba: Pointer to hba for which this call is being executed.
4934  *
4935  * This routine starts the timer waiting for the FCF rediscovery to complete.
4936  **/
4937 void
4938 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4939 {
4940         unsigned long fcf_redisc_wait_tmo =
4941                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4942         /* Start fcf rediscovery wait period timer */
4943         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4944         spin_lock_irq(&phba->hbalock);
4945         /* Allow action to new fcf asynchronous event */
4946         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4947         /* Mark the FCF rediscovery pending state */
4948         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4949         spin_unlock_irq(&phba->hbalock);
4950 }
4951
4952 /**
4953  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4954  * @t: Timer context used to obtain the pointer to lpfc hba data structure.
4955  *
4956  * This routine is invoked when waiting for FCF table rediscover has been
4957  * timed out. If new FCF record(s) has (have) been discovered during the
4958  * wait period, a new FCF event shall be added to the FCOE async event
4959  * list, and then worker thread shall be waked up for processing from the
4960  * worker thread context.
4961  **/
4962 static void
4963 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
4964 {
4965         struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
4966
4967         /* Don't send FCF rediscovery event if timer cancelled */
4968         spin_lock_irq(&phba->hbalock);
4969         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4970                 spin_unlock_irq(&phba->hbalock);
4971                 return;
4972         }
4973         /* Clear FCF rediscovery timer pending flag */
4974         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4975         /* FCF rediscovery event to worker thread */
4976         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4977         spin_unlock_irq(&phba->hbalock);
4978         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4979                         "2776 FCF rediscover quiescent timer expired\n");
4980         /* wake up worker thread */
4981         lpfc_worker_wake_up(phba);
4982 }
4983
4984 /**
4985  * lpfc_vmid_poll - VMID timeout detection
4986  * @t: Timer context used to obtain the pointer to lpfc hba data structure.
4987  *
4988  * This routine is invoked when there is no I/O on by a VM for the specified
4989  * amount of time. When this situation is detected, the VMID has to be
4990  * deregistered from the switch and all the local resources freed. The VMID
4991  * will be reassigned to the VM once the I/O begins.
4992  **/
4993 static void
4994 lpfc_vmid_poll(struct timer_list *t)
4995 {
4996         struct lpfc_hba *phba = from_timer(phba, t, inactive_vmid_poll);
4997         u32 wake_up = 0;
4998
4999         /* check if there is a need to issue QFPA */
5000         if (phba->pport->vmid_priority_tagging) {
5001                 wake_up = 1;
5002                 phba->pport->work_port_events |= WORKER_CHECK_VMID_ISSUE_QFPA;
5003         }
5004
5005         /* Is the vmid inactivity timer enabled */
5006         if (phba->pport->vmid_inactivity_timeout ||
5007             phba->pport->load_flag & FC_DEREGISTER_ALL_APP_ID) {
5008                 wake_up = 1;
5009                 phba->pport->work_port_events |= WORKER_CHECK_INACTIVE_VMID;
5010         }
5011
5012         if (wake_up)
5013                 lpfc_worker_wake_up(phba);
5014
5015         /* restart the timer for the next iteration */
5016         mod_timer(&phba->inactive_vmid_poll, jiffies + msecs_to_jiffies(1000 *
5017                                                         LPFC_VMID_TIMER));
5018 }
5019
5020 /**
5021  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
5022  * @phba: pointer to lpfc hba data structure.
5023  * @acqe_link: pointer to the async link completion queue entry.
5024  *
5025  * This routine is to parse the SLI4 link-attention link fault code.
5026  **/
5027 static void
5028 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
5029                            struct lpfc_acqe_link *acqe_link)
5030 {
5031         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
5032         case LPFC_ASYNC_LINK_FAULT_NONE:
5033         case LPFC_ASYNC_LINK_FAULT_LOCAL:
5034         case LPFC_ASYNC_LINK_FAULT_REMOTE:
5035         case LPFC_ASYNC_LINK_FAULT_LR_LRR:
5036                 break;
5037         default:
5038                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5039                                 "0398 Unknown link fault code: x%x\n",
5040                                 bf_get(lpfc_acqe_link_fault, acqe_link));
5041                 break;
5042         }
5043 }
5044
5045 /**
5046  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
5047  * @phba: pointer to lpfc hba data structure.
5048  * @acqe_link: pointer to the async link completion queue entry.
5049  *
5050  * This routine is to parse the SLI4 link attention type and translate it
5051  * into the base driver's link attention type coding.
5052  *
5053  * Return: Link attention type in terms of base driver's coding.
5054  **/
5055 static uint8_t
5056 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
5057                           struct lpfc_acqe_link *acqe_link)
5058 {
5059         uint8_t att_type;
5060
5061         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
5062         case LPFC_ASYNC_LINK_STATUS_DOWN:
5063         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
5064                 att_type = LPFC_ATT_LINK_DOWN;
5065                 break;
5066         case LPFC_ASYNC_LINK_STATUS_UP:
5067                 /* Ignore physical link up events - wait for logical link up */
5068                 att_type = LPFC_ATT_RESERVED;
5069                 break;
5070         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
5071                 att_type = LPFC_ATT_LINK_UP;
5072                 break;
5073         default:
5074                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5075                                 "0399 Invalid link attention type: x%x\n",
5076                                 bf_get(lpfc_acqe_link_status, acqe_link));
5077                 att_type = LPFC_ATT_RESERVED;
5078                 break;
5079         }
5080         return att_type;
5081 }
5082
5083 /**
5084  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
5085  * @phba: pointer to lpfc hba data structure.
5086  *
5087  * This routine is to get an SLI3 FC port's link speed in Mbps.
5088  *
5089  * Return: link speed in terms of Mbps.
5090  **/
5091 uint32_t
5092 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
5093 {
5094         uint32_t link_speed;
5095
5096         if (!lpfc_is_link_up(phba))
5097                 return 0;
5098
5099         if (phba->sli_rev <= LPFC_SLI_REV3) {
5100                 switch (phba->fc_linkspeed) {
5101                 case LPFC_LINK_SPEED_1GHZ:
5102                         link_speed = 1000;
5103                         break;
5104                 case LPFC_LINK_SPEED_2GHZ:
5105                         link_speed = 2000;
5106                         break;
5107                 case LPFC_LINK_SPEED_4GHZ:
5108                         link_speed = 4000;
5109                         break;
5110                 case LPFC_LINK_SPEED_8GHZ:
5111                         link_speed = 8000;
5112                         break;
5113                 case LPFC_LINK_SPEED_10GHZ:
5114                         link_speed = 10000;
5115                         break;
5116                 case LPFC_LINK_SPEED_16GHZ:
5117                         link_speed = 16000;
5118                         break;
5119                 default:
5120                         link_speed = 0;
5121                 }
5122         } else {
5123                 if (phba->sli4_hba.link_state.logical_speed)
5124                         link_speed =
5125                               phba->sli4_hba.link_state.logical_speed;
5126                 else
5127                         link_speed = phba->sli4_hba.link_state.speed;
5128         }
5129         return link_speed;
5130 }
5131
5132 /**
5133  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
5134  * @phba: pointer to lpfc hba data structure.
5135  * @evt_code: asynchronous event code.
5136  * @speed_code: asynchronous event link speed code.
5137  *
5138  * This routine is to parse the giving SLI4 async event link speed code into
5139  * value of Mbps for the link speed.
5140  *
5141  * Return: link speed in terms of Mbps.
5142  **/
5143 static uint32_t
5144 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
5145                            uint8_t speed_code)
5146 {
5147         uint32_t port_speed;
5148
5149         switch (evt_code) {
5150         case LPFC_TRAILER_CODE_LINK:
5151                 switch (speed_code) {
5152                 case LPFC_ASYNC_LINK_SPEED_ZERO:
5153                         port_speed = 0;
5154                         break;
5155                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
5156                         port_speed = 10;
5157                         break;
5158                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
5159                         port_speed = 100;
5160                         break;
5161                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
5162                         port_speed = 1000;
5163                         break;
5164                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
5165                         port_speed = 10000;
5166                         break;
5167                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
5168                         port_speed = 20000;
5169                         break;
5170                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
5171                         port_speed = 25000;
5172                         break;
5173                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
5174                         port_speed = 40000;
5175                         break;
5176                 case LPFC_ASYNC_LINK_SPEED_100GBPS:
5177                         port_speed = 100000;
5178                         break;
5179                 default:
5180                         port_speed = 0;
5181                 }
5182                 break;
5183         case LPFC_TRAILER_CODE_FC:
5184                 switch (speed_code) {
5185                 case LPFC_FC_LA_SPEED_UNKNOWN:
5186                         port_speed = 0;
5187                         break;
5188                 case LPFC_FC_LA_SPEED_1G:
5189                         port_speed = 1000;
5190                         break;
5191                 case LPFC_FC_LA_SPEED_2G:
5192                         port_speed = 2000;
5193                         break;
5194                 case LPFC_FC_LA_SPEED_4G:
5195                         port_speed = 4000;
5196                         break;
5197                 case LPFC_FC_LA_SPEED_8G:
5198                         port_speed = 8000;
5199                         break;
5200                 case LPFC_FC_LA_SPEED_10G:
5201                         port_speed = 10000;
5202                         break;
5203                 case LPFC_FC_LA_SPEED_16G:
5204                         port_speed = 16000;
5205                         break;
5206                 case LPFC_FC_LA_SPEED_32G:
5207                         port_speed = 32000;
5208                         break;
5209                 case LPFC_FC_LA_SPEED_64G:
5210                         port_speed = 64000;
5211                         break;
5212                 case LPFC_FC_LA_SPEED_128G:
5213                         port_speed = 128000;
5214                         break;
5215                 case LPFC_FC_LA_SPEED_256G:
5216                         port_speed = 256000;
5217                         break;
5218                 default:
5219                         port_speed = 0;
5220                 }
5221                 break;
5222         default:
5223                 port_speed = 0;
5224         }
5225         return port_speed;
5226 }
5227
5228 /**
5229  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
5230  * @phba: pointer to lpfc hba data structure.
5231  * @acqe_link: pointer to the async link completion queue entry.
5232  *
5233  * This routine is to handle the SLI4 asynchronous FCoE link event.
5234  **/
5235 static void
5236 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
5237                          struct lpfc_acqe_link *acqe_link)
5238 {
5239         struct lpfc_dmabuf *mp;
5240         LPFC_MBOXQ_t *pmb;
5241         MAILBOX_t *mb;
5242         struct lpfc_mbx_read_top *la;
5243         uint8_t att_type;
5244         int rc;
5245
5246         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
5247         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
5248                 return;
5249         phba->fcoe_eventtag = acqe_link->event_tag;
5250         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5251         if (!pmb) {
5252                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5253                                 "0395 The mboxq allocation failed\n");
5254                 return;
5255         }
5256         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5257         if (!mp) {
5258                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5259                                 "0396 The lpfc_dmabuf allocation failed\n");
5260                 goto out_free_pmb;
5261         }
5262         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
5263         if (!mp->virt) {
5264                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5265                                 "0397 The mbuf allocation failed\n");
5266                 goto out_free_dmabuf;
5267         }
5268
5269         /* Cleanup any outstanding ELS commands */
5270         lpfc_els_flush_all_cmd(phba);
5271
5272         /* Block ELS IOCBs until we have done process link event */
5273         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5274
5275         /* Update link event statistics */
5276         phba->sli.slistat.link_event++;
5277
5278         /* Create lpfc_handle_latt mailbox command from link ACQE */
5279         lpfc_read_topology(phba, pmb, mp);
5280         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5281         pmb->vport = phba->pport;
5282
5283         /* Keep the link status for extra SLI4 state machine reference */
5284         phba->sli4_hba.link_state.speed =
5285                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
5286                                 bf_get(lpfc_acqe_link_speed, acqe_link));
5287         phba->sli4_hba.link_state.duplex =
5288                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
5289         phba->sli4_hba.link_state.status =
5290                                 bf_get(lpfc_acqe_link_status, acqe_link);
5291         phba->sli4_hba.link_state.type =
5292                                 bf_get(lpfc_acqe_link_type, acqe_link);
5293         phba->sli4_hba.link_state.number =
5294                                 bf_get(lpfc_acqe_link_number, acqe_link);
5295         phba->sli4_hba.link_state.fault =
5296                                 bf_get(lpfc_acqe_link_fault, acqe_link);
5297         phba->sli4_hba.link_state.logical_speed =
5298                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
5299
5300         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5301                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
5302                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
5303                         "Logical speed:%dMbps Fault:%d\n",
5304                         phba->sli4_hba.link_state.speed,
5305                         phba->sli4_hba.link_state.topology,
5306                         phba->sli4_hba.link_state.status,
5307                         phba->sli4_hba.link_state.type,
5308                         phba->sli4_hba.link_state.number,
5309                         phba->sli4_hba.link_state.logical_speed,
5310                         phba->sli4_hba.link_state.fault);
5311         /*
5312          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
5313          * topology info. Note: Optional for non FC-AL ports.
5314          */
5315         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
5316                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5317                 if (rc == MBX_NOT_FINISHED) {
5318                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
5319                         goto out_free_dmabuf;
5320                 }
5321                 return;
5322         }
5323         /*
5324          * For FCoE Mode: fill in all the topology information we need and call
5325          * the READ_TOPOLOGY completion routine to continue without actually
5326          * sending the READ_TOPOLOGY mailbox command to the port.
5327          */
5328         /* Initialize completion status */
5329         mb = &pmb->u.mb;
5330         mb->mbxStatus = MBX_SUCCESS;
5331
5332         /* Parse port fault information field */
5333         lpfc_sli4_parse_latt_fault(phba, acqe_link);
5334
5335         /* Parse and translate link attention fields */
5336         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
5337         la->eventTag = acqe_link->event_tag;
5338         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
5339         bf_set(lpfc_mbx_read_top_link_spd, la,
5340                (bf_get(lpfc_acqe_link_speed, acqe_link)));
5341
5342         /* Fake the the following irrelvant fields */
5343         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
5344         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
5345         bf_set(lpfc_mbx_read_top_il, la, 0);
5346         bf_set(lpfc_mbx_read_top_pb, la, 0);
5347         bf_set(lpfc_mbx_read_top_fa, la, 0);
5348         bf_set(lpfc_mbx_read_top_mm, la, 0);
5349
5350         /* Invoke the lpfc_handle_latt mailbox command callback function */
5351         lpfc_mbx_cmpl_read_topology(phba, pmb);
5352
5353         return;
5354
5355 out_free_dmabuf:
5356         kfree(mp);
5357 out_free_pmb:
5358         mempool_free(pmb, phba->mbox_mem_pool);
5359 }
5360
5361 /**
5362  * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
5363  * topology.
5364  * @phba: pointer to lpfc hba data structure.
5365  * @speed_code: asynchronous event link speed code.
5366  *
5367  * This routine is to parse the giving SLI4 async event link speed code into
5368  * value of Read topology link speed.
5369  *
5370  * Return: link speed in terms of Read topology.
5371  **/
5372 static uint8_t
5373 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
5374 {
5375         uint8_t port_speed;
5376
5377         switch (speed_code) {
5378         case LPFC_FC_LA_SPEED_1G:
5379                 port_speed = LPFC_LINK_SPEED_1GHZ;
5380                 break;
5381         case LPFC_FC_LA_SPEED_2G:
5382                 port_speed = LPFC_LINK_SPEED_2GHZ;
5383                 break;
5384         case LPFC_FC_LA_SPEED_4G:
5385                 port_speed = LPFC_LINK_SPEED_4GHZ;
5386                 break;
5387         case LPFC_FC_LA_SPEED_8G:
5388                 port_speed = LPFC_LINK_SPEED_8GHZ;
5389                 break;
5390         case LPFC_FC_LA_SPEED_16G:
5391                 port_speed = LPFC_LINK_SPEED_16GHZ;
5392                 break;
5393         case LPFC_FC_LA_SPEED_32G:
5394                 port_speed = LPFC_LINK_SPEED_32GHZ;
5395                 break;
5396         case LPFC_FC_LA_SPEED_64G:
5397                 port_speed = LPFC_LINK_SPEED_64GHZ;
5398                 break;
5399         case LPFC_FC_LA_SPEED_128G:
5400                 port_speed = LPFC_LINK_SPEED_128GHZ;
5401                 break;
5402         case LPFC_FC_LA_SPEED_256G:
5403                 port_speed = LPFC_LINK_SPEED_256GHZ;
5404                 break;
5405         default:
5406                 port_speed = 0;
5407                 break;
5408         }
5409
5410         return port_speed;
5411 }
5412
5413 void
5414 lpfc_cgn_dump_rxmonitor(struct lpfc_hba *phba)
5415 {
5416         struct rxtable_entry *entry;
5417         int cnt = 0, head, tail, last, start;
5418
5419         head = atomic_read(&phba->rxtable_idx_head);
5420         tail = atomic_read(&phba->rxtable_idx_tail);
5421         if (!phba->rxtable || head == tail) {
5422                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT,
5423                                 "4411 Rxtable is empty\n");
5424                 return;
5425         }
5426         last = tail;
5427         start = head;
5428
5429         /* Display the last LPFC_MAX_RXMONITOR_DUMP entries from the rxtable */
5430         while (start != last) {
5431                 if (start)
5432                         start--;
5433                 else
5434                         start = LPFC_MAX_RXMONITOR_ENTRY - 1;
5435                 entry = &phba->rxtable[start];
5436                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5437                                 "4410 %02d: MBPI %lld Xmit %lld Cmpl %lld "
5438                                 "Lat %lld ASz %lld Info %02d BWUtil %d "
5439                                 "Int %d slot %d\n",
5440                                 cnt, entry->max_bytes_per_interval,
5441                                 entry->total_bytes, entry->rcv_bytes,
5442                                 entry->avg_io_latency, entry->avg_io_size,
5443                                 entry->cmf_info, entry->timer_utilization,
5444                                 entry->timer_interval, start);
5445                 cnt++;
5446                 if (cnt >= LPFC_MAX_RXMONITOR_DUMP)
5447                         return;
5448         }
5449 }
5450
5451 /**
5452  * lpfc_cgn_update_stat - Save data into congestion stats buffer
5453  * @phba: pointer to lpfc hba data structure.
5454  * @dtag: FPIN descriptor received
5455  *
5456  * Increment the FPIN received counter/time when it happens.
5457  */
5458 void
5459 lpfc_cgn_update_stat(struct lpfc_hba *phba, uint32_t dtag)
5460 {
5461         struct lpfc_cgn_info *cp;
5462         struct tm broken;
5463         struct timespec64 cur_time;
5464         u32 cnt;
5465         u16 value;
5466
5467         /* Make sure we have a congestion info buffer */
5468         if (!phba->cgn_i)
5469                 return;
5470         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
5471         ktime_get_real_ts64(&cur_time);
5472         time64_to_tm(cur_time.tv_sec, 0, &broken);
5473
5474         /* Update congestion statistics */
5475         switch (dtag) {
5476         case ELS_DTAG_LNK_INTEGRITY:
5477                 cnt = le32_to_cpu(cp->link_integ_notification);
5478                 cnt++;
5479                 cp->link_integ_notification = cpu_to_le32(cnt);
5480
5481                 cp->cgn_stat_lnk_month = broken.tm_mon + 1;
5482                 cp->cgn_stat_lnk_day = broken.tm_mday;
5483                 cp->cgn_stat_lnk_year = broken.tm_year - 100;
5484                 cp->cgn_stat_lnk_hour = broken.tm_hour;
5485                 cp->cgn_stat_lnk_min = broken.tm_min;
5486                 cp->cgn_stat_lnk_sec = broken.tm_sec;
5487                 break;
5488         case ELS_DTAG_DELIVERY:
5489                 cnt = le32_to_cpu(cp->delivery_notification);
5490                 cnt++;
5491                 cp->delivery_notification = cpu_to_le32(cnt);
5492
5493                 cp->cgn_stat_del_month = broken.tm_mon + 1;
5494                 cp->cgn_stat_del_day = broken.tm_mday;
5495                 cp->cgn_stat_del_year = broken.tm_year - 100;
5496                 cp->cgn_stat_del_hour = broken.tm_hour;
5497                 cp->cgn_stat_del_min = broken.tm_min;
5498                 cp->cgn_stat_del_sec = broken.tm_sec;
5499                 break;
5500         case ELS_DTAG_PEER_CONGEST:
5501                 cnt = le32_to_cpu(cp->cgn_peer_notification);
5502                 cnt++;
5503                 cp->cgn_peer_notification = cpu_to_le32(cnt);
5504
5505                 cp->cgn_stat_peer_month = broken.tm_mon + 1;
5506                 cp->cgn_stat_peer_day = broken.tm_mday;
5507                 cp->cgn_stat_peer_year = broken.tm_year - 100;
5508                 cp->cgn_stat_peer_hour = broken.tm_hour;
5509                 cp->cgn_stat_peer_min = broken.tm_min;
5510                 cp->cgn_stat_peer_sec = broken.tm_sec;
5511                 break;
5512         case ELS_DTAG_CONGESTION:
5513                 cnt = le32_to_cpu(cp->cgn_notification);
5514                 cnt++;
5515                 cp->cgn_notification = cpu_to_le32(cnt);
5516
5517                 cp->cgn_stat_cgn_month = broken.tm_mon + 1;
5518                 cp->cgn_stat_cgn_day = broken.tm_mday;
5519                 cp->cgn_stat_cgn_year = broken.tm_year - 100;
5520                 cp->cgn_stat_cgn_hour = broken.tm_hour;
5521                 cp->cgn_stat_cgn_min = broken.tm_min;
5522                 cp->cgn_stat_cgn_sec = broken.tm_sec;
5523         }
5524         if (phba->cgn_fpin_frequency &&
5525             phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ) {
5526                 value = LPFC_CGN_TIMER_TO_MIN / phba->cgn_fpin_frequency;
5527                 cp->cgn_stat_npm = value;
5528         }
5529         value = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
5530                                     LPFC_CGN_CRC32_SEED);
5531         cp->cgn_info_crc = cpu_to_le32(value);
5532 }
5533
5534 /**
5535  * lpfc_cgn_save_evt_cnt - Save data into registered congestion buffer
5536  * @phba: pointer to lpfc hba data structure.
5537  *
5538  * Save the congestion event data every minute.
5539  * On the hour collapse all the minute data into hour data. Every day
5540  * collapse all the hour data into daily data. Separate driver
5541  * and fabrc congestion event counters that will be saved out
5542  * to the registered congestion buffer every minute.
5543  */
5544 static void
5545 lpfc_cgn_save_evt_cnt(struct lpfc_hba *phba)
5546 {
5547         struct lpfc_cgn_info *cp;
5548         struct tm broken;
5549         struct timespec64 cur_time;
5550         uint32_t i, index;
5551         uint16_t value, mvalue;
5552         uint64_t bps;
5553         uint32_t mbps;
5554         uint32_t dvalue, wvalue, lvalue, avalue;
5555         uint64_t latsum;
5556         __le16 *ptr;
5557         __le32 *lptr;
5558         __le16 *mptr;
5559
5560         /* Make sure we have a congestion info buffer */
5561         if (!phba->cgn_i)
5562                 return;
5563         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
5564
5565         if (time_before(jiffies, phba->cgn_evt_timestamp))
5566                 return;
5567         phba->cgn_evt_timestamp = jiffies +
5568                         msecs_to_jiffies(LPFC_CGN_TIMER_TO_MIN);
5569         phba->cgn_evt_minute++;
5570
5571         /* We should get to this point in the routine on 1 minute intervals */
5572
5573         ktime_get_real_ts64(&cur_time);
5574         time64_to_tm(cur_time.tv_sec, 0, &broken);
5575
5576         if (phba->cgn_fpin_frequency &&
5577             phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ) {
5578                 value = LPFC_CGN_TIMER_TO_MIN / phba->cgn_fpin_frequency;
5579                 cp->cgn_stat_npm = value;
5580         }
5581
5582         /* Read and clear the latency counters for this minute */
5583         lvalue = atomic_read(&phba->cgn_latency_evt_cnt);
5584         latsum = atomic64_read(&phba->cgn_latency_evt);
5585         atomic_set(&phba->cgn_latency_evt_cnt, 0);
5586         atomic64_set(&phba->cgn_latency_evt, 0);
5587
5588         /* We need to store MB/sec bandwidth in the congestion information.
5589          * block_cnt is count of 512 byte blocks for the entire minute,
5590          * bps will get bytes per sec before finally converting to MB/sec.
5591          */
5592         bps = div_u64(phba->rx_block_cnt, LPFC_SEC_MIN) * 512;
5593         phba->rx_block_cnt = 0;
5594         mvalue = bps / (1024 * 1024); /* convert to MB/sec */
5595
5596         /* Every minute */
5597         /* cgn parameters */
5598         cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
5599         cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
5600         cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
5601         cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
5602
5603         /* Fill in default LUN qdepth */
5604         value = (uint16_t)(phba->pport->cfg_lun_queue_depth);
5605         cp->cgn_lunq = cpu_to_le16(value);
5606
5607         /* Record congestion buffer info - every minute
5608          * cgn_driver_evt_cnt (Driver events)
5609          * cgn_fabric_warn_cnt (Congestion Warnings)
5610          * cgn_latency_evt_cnt / cgn_latency_evt (IO Latency)
5611          * cgn_fabric_alarm_cnt (Congestion Alarms)
5612          */
5613         index = ++cp->cgn_index_minute;
5614         if (cp->cgn_index_minute == LPFC_MIN_HOUR) {
5615                 cp->cgn_index_minute = 0;
5616                 index = 0;
5617         }
5618
5619         /* Get the number of driver events in this sample and reset counter */
5620         dvalue = atomic_read(&phba->cgn_driver_evt_cnt);
5621         atomic_set(&phba->cgn_driver_evt_cnt, 0);
5622
5623         /* Get the number of warning events - FPIN and Signal for this minute */
5624         wvalue = 0;
5625         if ((phba->cgn_reg_fpin & LPFC_CGN_FPIN_WARN) ||
5626             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
5627             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5628                 wvalue = atomic_read(&phba->cgn_fabric_warn_cnt);
5629         atomic_set(&phba->cgn_fabric_warn_cnt, 0);
5630
5631         /* Get the number of alarm events - FPIN and Signal for this minute */
5632         avalue = 0;
5633         if ((phba->cgn_reg_fpin & LPFC_CGN_FPIN_ALARM) ||
5634             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5635                 avalue = atomic_read(&phba->cgn_fabric_alarm_cnt);
5636         atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
5637
5638         /* Collect the driver, warning, alarm and latency counts for this
5639          * minute into the driver congestion buffer.
5640          */
5641         ptr = &cp->cgn_drvr_min[index];
5642         value = (uint16_t)dvalue;
5643         *ptr = cpu_to_le16(value);
5644
5645         ptr = &cp->cgn_warn_min[index];
5646         value = (uint16_t)wvalue;
5647         *ptr = cpu_to_le16(value);
5648
5649         ptr = &cp->cgn_alarm_min[index];
5650         value = (uint16_t)avalue;
5651         *ptr = cpu_to_le16(value);
5652
5653         lptr = &cp->cgn_latency_min[index];
5654         if (lvalue) {
5655                 lvalue = (uint32_t)div_u64(latsum, lvalue);
5656                 *lptr = cpu_to_le32(lvalue);
5657         } else {
5658                 *lptr = 0;
5659         }
5660
5661         /* Collect the bandwidth value into the driver's congesion buffer. */
5662         mptr = &cp->cgn_bw_min[index];
5663         *mptr = cpu_to_le16(mvalue);
5664
5665         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5666                         "2418 Congestion Info - minute (%d): %d %d %d %d %d\n",
5667                         index, dvalue, wvalue, *lptr, mvalue, avalue);
5668
5669         /* Every hour */
5670         if ((phba->cgn_evt_minute % LPFC_MIN_HOUR) == 0) {
5671                 /* Record congestion buffer info - every hour
5672                  * Collapse all minutes into an hour
5673                  */
5674                 index = ++cp->cgn_index_hour;
5675                 if (cp->cgn_index_hour == LPFC_HOUR_DAY) {
5676                         cp->cgn_index_hour = 0;
5677                         index = 0;
5678                 }
5679
5680                 dvalue = 0;
5681                 wvalue = 0;
5682                 lvalue = 0;
5683                 avalue = 0;
5684                 mvalue = 0;
5685                 mbps = 0;
5686                 for (i = 0; i < LPFC_MIN_HOUR; i++) {
5687                         dvalue += le16_to_cpu(cp->cgn_drvr_min[i]);
5688                         wvalue += le16_to_cpu(cp->cgn_warn_min[i]);
5689                         lvalue += le32_to_cpu(cp->cgn_latency_min[i]);
5690                         mbps += le16_to_cpu(cp->cgn_bw_min[i]);
5691                         avalue += le16_to_cpu(cp->cgn_alarm_min[i]);
5692                 }
5693                 if (lvalue)             /* Avg of latency averages */
5694                         lvalue /= LPFC_MIN_HOUR;
5695                 if (mbps)               /* Avg of Bandwidth averages */
5696                         mvalue = mbps / LPFC_MIN_HOUR;
5697
5698                 lptr = &cp->cgn_drvr_hr[index];
5699                 *lptr = cpu_to_le32(dvalue);
5700                 lptr = &cp->cgn_warn_hr[index];
5701                 *lptr = cpu_to_le32(wvalue);
5702                 lptr = &cp->cgn_latency_hr[index];
5703                 *lptr = cpu_to_le32(lvalue);
5704                 mptr = &cp->cgn_bw_hr[index];
5705                 *mptr = cpu_to_le16(mvalue);
5706                 lptr = &cp->cgn_alarm_hr[index];
5707                 *lptr = cpu_to_le32(avalue);
5708
5709                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5710                                 "2419 Congestion Info - hour "
5711                                 "(%d): %d %d %d %d %d\n",
5712                                 index, dvalue, wvalue, lvalue, mvalue, avalue);
5713         }
5714
5715         /* Every day */
5716         if ((phba->cgn_evt_minute % LPFC_MIN_DAY) == 0) {
5717                 /* Record congestion buffer info - every hour
5718                  * Collapse all hours into a day. Rotate days
5719                  * after LPFC_MAX_CGN_DAYS.
5720                  */
5721                 index = ++cp->cgn_index_day;
5722                 if (cp->cgn_index_day == LPFC_MAX_CGN_DAYS) {
5723                         cp->cgn_index_day = 0;
5724                         index = 0;
5725                 }
5726
5727                 /* Anytime we overwrite daily index 0, after we wrap,
5728                  * we will be overwriting the oldest day, so we must
5729                  * update the congestion data start time for that day.
5730                  * That start time should have previously been saved after
5731                  * we wrote the last days worth of data.
5732                  */
5733                 if ((phba->hba_flag & HBA_CGN_DAY_WRAP) && index == 0) {
5734                         time64_to_tm(phba->cgn_daily_ts.tv_sec, 0, &broken);
5735
5736                         cp->cgn_info_month = broken.tm_mon + 1;
5737                         cp->cgn_info_day = broken.tm_mday;
5738                         cp->cgn_info_year = broken.tm_year - 100;
5739                         cp->cgn_info_hour = broken.tm_hour;
5740                         cp->cgn_info_minute = broken.tm_min;
5741                         cp->cgn_info_second = broken.tm_sec;
5742
5743                         lpfc_printf_log
5744                                 (phba, KERN_INFO, LOG_CGN_MGMT,
5745                                 "2646 CGNInfo idx0 Start Time: "
5746                                 "%d/%d/%d %d:%d:%d\n",
5747                                 cp->cgn_info_day, cp->cgn_info_month,
5748                                 cp->cgn_info_year, cp->cgn_info_hour,
5749                                 cp->cgn_info_minute, cp->cgn_info_second);
5750                 }
5751
5752                 dvalue = 0;
5753                 wvalue = 0;
5754                 lvalue = 0;
5755                 mvalue = 0;
5756                 mbps = 0;
5757                 avalue = 0;
5758                 for (i = 0; i < LPFC_HOUR_DAY; i++) {
5759                         dvalue += le32_to_cpu(cp->cgn_drvr_hr[i]);
5760                         wvalue += le32_to_cpu(cp->cgn_warn_hr[i]);
5761                         lvalue += le32_to_cpu(cp->cgn_latency_hr[i]);
5762                         mbps += le16_to_cpu(cp->cgn_bw_hr[i]);
5763                         avalue += le32_to_cpu(cp->cgn_alarm_hr[i]);
5764                 }
5765                 if (lvalue)             /* Avg of latency averages */
5766                         lvalue /= LPFC_HOUR_DAY;
5767                 if (mbps)               /* Avg of Bandwidth averages */
5768                         mvalue = mbps / LPFC_HOUR_DAY;
5769
5770                 lptr = &cp->cgn_drvr_day[index];
5771                 *lptr = cpu_to_le32(dvalue);
5772                 lptr = &cp->cgn_warn_day[index];
5773                 *lptr = cpu_to_le32(wvalue);
5774                 lptr = &cp->cgn_latency_day[index];
5775                 *lptr = cpu_to_le32(lvalue);
5776                 mptr = &cp->cgn_bw_day[index];
5777                 *mptr = cpu_to_le16(mvalue);
5778                 lptr = &cp->cgn_alarm_day[index];
5779                 *lptr = cpu_to_le32(avalue);
5780
5781                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5782                                 "2420 Congestion Info - daily (%d): "
5783                                 "%d %d %d %d %d\n",
5784                                 index, dvalue, wvalue, lvalue, mvalue, avalue);
5785
5786                 /* We just wrote LPFC_MAX_CGN_DAYS of data,
5787                  * so we are wrapped on any data after this.
5788                  * Save this as the start time for the next day.
5789                  */
5790                 if (index == (LPFC_MAX_CGN_DAYS - 1)) {
5791                         phba->hba_flag |= HBA_CGN_DAY_WRAP;
5792                         ktime_get_real_ts64(&phba->cgn_daily_ts);
5793                 }
5794         }
5795
5796         /* Use the frequency found in the last rcv'ed FPIN */
5797         value = phba->cgn_fpin_frequency;
5798         cp->cgn_warn_freq = cpu_to_le16(value);
5799         cp->cgn_alarm_freq = cpu_to_le16(value);
5800
5801         lvalue = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
5802                                      LPFC_CGN_CRC32_SEED);
5803         cp->cgn_info_crc = cpu_to_le32(lvalue);
5804 }
5805
5806 /**
5807  * lpfc_calc_cmf_latency - latency from start of rxate timer interval
5808  * @phba: The Hba for which this call is being executed.
5809  *
5810  * The routine calculates the latency from the beginning of the CMF timer
5811  * interval to the current point in time. It is called from IO completion
5812  * when we exceed our Bandwidth limitation for the time interval.
5813  */
5814 uint32_t
5815 lpfc_calc_cmf_latency(struct lpfc_hba *phba)
5816 {
5817         struct timespec64 cmpl_time;
5818         uint32_t msec = 0;
5819
5820         ktime_get_real_ts64(&cmpl_time);
5821
5822         /* This routine works on a ms granularity so sec and usec are
5823          * converted accordingly.
5824          */
5825         if (cmpl_time.tv_sec == phba->cmf_latency.tv_sec) {
5826                 msec = (cmpl_time.tv_nsec - phba->cmf_latency.tv_nsec) /
5827                         NSEC_PER_MSEC;
5828         } else {
5829                 if (cmpl_time.tv_nsec >= phba->cmf_latency.tv_nsec) {
5830                         msec = (cmpl_time.tv_sec -
5831                                 phba->cmf_latency.tv_sec) * MSEC_PER_SEC;
5832                         msec += ((cmpl_time.tv_nsec -
5833                                   phba->cmf_latency.tv_nsec) / NSEC_PER_MSEC);
5834                 } else {
5835                         msec = (cmpl_time.tv_sec - phba->cmf_latency.tv_sec -
5836                                 1) * MSEC_PER_SEC;
5837                         msec += (((NSEC_PER_SEC - phba->cmf_latency.tv_nsec) +
5838                                  cmpl_time.tv_nsec) / NSEC_PER_MSEC);
5839                 }
5840         }
5841         return msec;
5842 }
5843
5844 /**
5845  * lpfc_cmf_timer -  This is the timer function for one congestion
5846  * rate interval.
5847  * @timer: Pointer to the high resolution timer that expired
5848  */
5849 static enum hrtimer_restart
5850 lpfc_cmf_timer(struct hrtimer *timer)
5851 {
5852         struct lpfc_hba *phba = container_of(timer, struct lpfc_hba,
5853                                              cmf_timer);
5854         struct rxtable_entry *entry;
5855         uint32_t io_cnt;
5856         uint32_t head, tail;
5857         uint32_t busy, max_read;
5858         uint64_t total, rcv, lat, mbpi;
5859         int timer_interval = LPFC_CMF_INTERVAL;
5860         uint32_t ms;
5861         struct lpfc_cgn_stat *cgs;
5862         int cpu;
5863
5864         /* Only restart the timer if congestion mgmt is on */
5865         if (phba->cmf_active_mode == LPFC_CFG_OFF ||
5866             !phba->cmf_latency.tv_sec) {
5867                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5868                                 "6224 CMF timer exit: %d %lld\n",
5869                                 phba->cmf_active_mode,
5870                                 (uint64_t)phba->cmf_latency.tv_sec);
5871                 return HRTIMER_NORESTART;
5872         }
5873
5874         /* If pport is not ready yet, just exit and wait for
5875          * the next timer cycle to hit.
5876          */
5877         if (!phba->pport)
5878                 goto skip;
5879
5880         /* Do not block SCSI IO while in the timer routine since
5881          * total_bytes will be cleared
5882          */
5883         atomic_set(&phba->cmf_stop_io, 1);
5884
5885         /* First we need to calculate the actual ms between
5886          * the last timer interrupt and this one. We ask for
5887          * LPFC_CMF_INTERVAL, however the actual time may
5888          * vary depending on system overhead.
5889          */
5890         ms = lpfc_calc_cmf_latency(phba);
5891
5892
5893         /* Immediately after we calculate the time since the last
5894          * timer interrupt, set the start time for the next
5895          * interrupt
5896          */
5897         ktime_get_real_ts64(&phba->cmf_latency);
5898
5899         phba->cmf_link_byte_count =
5900                 div_u64(phba->cmf_max_line_rate * LPFC_CMF_INTERVAL, 1000);
5901
5902         /* Collect all the stats from the prior timer interval */
5903         total = 0;
5904         io_cnt = 0;
5905         lat = 0;
5906         rcv = 0;
5907         for_each_present_cpu(cpu) {
5908                 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
5909                 total += atomic64_xchg(&cgs->total_bytes, 0);
5910                 io_cnt += atomic_xchg(&cgs->rx_io_cnt, 0);
5911                 lat += atomic64_xchg(&cgs->rx_latency, 0);
5912                 rcv += atomic64_xchg(&cgs->rcv_bytes, 0);
5913         }
5914
5915         /* Before we issue another CMF_SYNC_WQE, retrieve the BW
5916          * returned from the last CMF_SYNC_WQE issued, from
5917          * cmf_last_sync_bw. This will be the target BW for
5918          * this next timer interval.
5919          */
5920         if (phba->cmf_active_mode == LPFC_CFG_MANAGED &&
5921             phba->link_state != LPFC_LINK_DOWN &&
5922             phba->hba_flag & HBA_SETUP) {
5923                 mbpi = phba->cmf_last_sync_bw;
5924                 phba->cmf_last_sync_bw = 0;
5925                 lpfc_issue_cmf_sync_wqe(phba, LPFC_CMF_INTERVAL, total);
5926         } else {
5927                 /* For Monitor mode or link down we want mbpi
5928                  * to be the full link speed
5929                  */
5930                 mbpi = phba->cmf_link_byte_count;
5931         }
5932         phba->cmf_timer_cnt++;
5933
5934         if (io_cnt) {
5935                 /* Update congestion info buffer latency in us */
5936                 atomic_add(io_cnt, &phba->cgn_latency_evt_cnt);
5937                 atomic64_add(lat, &phba->cgn_latency_evt);
5938         }
5939         busy = atomic_xchg(&phba->cmf_busy, 0);
5940         max_read = atomic_xchg(&phba->rx_max_read_cnt, 0);
5941
5942         /* Calculate MBPI for the next timer interval */
5943         if (mbpi) {
5944                 if (mbpi > phba->cmf_link_byte_count ||
5945                     phba->cmf_active_mode == LPFC_CFG_MONITOR)
5946                         mbpi = phba->cmf_link_byte_count;
5947
5948                 /* Change max_bytes_per_interval to what the prior
5949                  * CMF_SYNC_WQE cmpl indicated.
5950                  */
5951                 if (mbpi != phba->cmf_max_bytes_per_interval)
5952                         phba->cmf_max_bytes_per_interval = mbpi;
5953         }
5954
5955         /* Save rxmonitor information for debug */
5956         if (phba->rxtable) {
5957                 head = atomic_xchg(&phba->rxtable_idx_head,
5958                                    LPFC_RXMONITOR_TABLE_IN_USE);
5959                 entry = &phba->rxtable[head];
5960                 entry->total_bytes = total;
5961                 entry->rcv_bytes = rcv;
5962                 entry->cmf_busy = busy;
5963                 entry->cmf_info = phba->cmf_active_info;
5964                 if (io_cnt) {
5965                         entry->avg_io_latency = div_u64(lat, io_cnt);
5966                         entry->avg_io_size = div_u64(rcv, io_cnt);
5967                 } else {
5968                         entry->avg_io_latency = 0;
5969                         entry->avg_io_size = 0;
5970                 }
5971                 entry->max_read_cnt = max_read;
5972                 entry->io_cnt = io_cnt;
5973                 entry->max_bytes_per_interval = mbpi;
5974                 if (phba->cmf_active_mode == LPFC_CFG_MANAGED)
5975                         entry->timer_utilization = phba->cmf_last_ts;
5976                 else
5977                         entry->timer_utilization = ms;
5978                 entry->timer_interval = ms;
5979                 phba->cmf_last_ts = 0;
5980
5981                 /* Increment rxtable index */
5982                 head = (head + 1) % LPFC_MAX_RXMONITOR_ENTRY;
5983                 tail = atomic_read(&phba->rxtable_idx_tail);
5984                 if (head == tail) {
5985                         tail = (tail + 1) % LPFC_MAX_RXMONITOR_ENTRY;
5986                         atomic_set(&phba->rxtable_idx_tail, tail);
5987                 }
5988                 atomic_set(&phba->rxtable_idx_head, head);
5989         }
5990
5991         if (phba->cmf_active_mode == LPFC_CFG_MONITOR) {
5992                 /* If Monitor mode, check if we are oversubscribed
5993                  * against the full line rate.
5994                  */
5995                 if (mbpi && total > mbpi)
5996                         atomic_inc(&phba->cgn_driver_evt_cnt);
5997         }
5998         phba->rx_block_cnt += div_u64(rcv, 512);  /* save 512 byte block cnt */
5999
6000         /* Each minute save Fabric and Driver congestion information */
6001         lpfc_cgn_save_evt_cnt(phba);
6002
6003         /* Since we need to call lpfc_cgn_save_evt_cnt every minute, on the
6004          * minute, adjust our next timer interval, if needed, to ensure a
6005          * 1 minute granularity when we get the next timer interrupt.
6006          */
6007         if (time_after(jiffies + msecs_to_jiffies(LPFC_CMF_INTERVAL),
6008                        phba->cgn_evt_timestamp)) {
6009                 timer_interval = jiffies_to_msecs(phba->cgn_evt_timestamp -
6010                                                   jiffies);
6011                 if (timer_interval <= 0)
6012                         timer_interval = LPFC_CMF_INTERVAL;
6013
6014                 /* If we adjust timer_interval, max_bytes_per_interval
6015                  * needs to be adjusted as well.
6016                  */
6017                 phba->cmf_link_byte_count = div_u64(phba->cmf_max_line_rate *
6018                                                     timer_interval, 1000);
6019                 if (phba->cmf_active_mode == LPFC_CFG_MONITOR)
6020                         phba->cmf_max_bytes_per_interval =
6021                                 phba->cmf_link_byte_count;
6022         }
6023
6024         /* Since total_bytes has already been zero'ed, its okay to unblock
6025          * after max_bytes_per_interval is setup.
6026          */
6027         if (atomic_xchg(&phba->cmf_bw_wait, 0))
6028                 queue_work(phba->wq, &phba->unblock_request_work);
6029
6030         /* SCSI IO is now unblocked */
6031         atomic_set(&phba->cmf_stop_io, 0);
6032
6033 skip:
6034         hrtimer_forward_now(timer,
6035                             ktime_set(0, timer_interval * NSEC_PER_MSEC));
6036         return HRTIMER_RESTART;
6037 }
6038
6039 #define trunk_link_status(__idx)\
6040         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
6041                ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
6042                 "Link up" : "Link down") : "NA"
6043 /* Did port __idx reported an error */
6044 #define trunk_port_fault(__idx)\
6045         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
6046                (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
6047
6048 static void
6049 lpfc_update_trunk_link_status(struct lpfc_hba *phba,
6050                               struct lpfc_acqe_fc_la *acqe_fc)
6051 {
6052         uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
6053         uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
6054
6055         phba->sli4_hba.link_state.speed =
6056                 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
6057                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6058
6059         phba->sli4_hba.link_state.logical_speed =
6060                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
6061         /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
6062         phba->fc_linkspeed =
6063                  lpfc_async_link_speed_to_read_top(
6064                                 phba,
6065                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6066
6067         if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
6068                 phba->trunk_link.link0.state =
6069                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
6070                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6071                 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
6072         }
6073         if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
6074                 phba->trunk_link.link1.state =
6075                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
6076                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6077                 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
6078         }
6079         if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
6080                 phba->trunk_link.link2.state =
6081                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
6082                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6083                 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
6084         }
6085         if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
6086                 phba->trunk_link.link3.state =
6087                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
6088                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6089                 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
6090         }
6091
6092         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6093                         "2910 Async FC Trunking Event - Speed:%d\n"
6094                         "\tLogical speed:%d "
6095                         "port0: %s port1: %s port2: %s port3: %s\n",
6096                         phba->sli4_hba.link_state.speed,
6097                         phba->sli4_hba.link_state.logical_speed,
6098                         trunk_link_status(0), trunk_link_status(1),
6099                         trunk_link_status(2), trunk_link_status(3));
6100
6101         if (phba->cmf_active_mode != LPFC_CFG_OFF)
6102                 lpfc_cmf_signal_init(phba);
6103
6104         if (port_fault)
6105                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6106                                 "3202 trunk error:0x%x (%s) seen on port0:%s "
6107                                 /*
6108                                  * SLI-4: We have only 0xA error codes
6109                                  * defined as of now. print an appropriate
6110                                  * message in case driver needs to be updated.
6111                                  */
6112                                 "port1:%s port2:%s port3:%s\n", err, err > 0xA ?
6113                                 "UNDEFINED. update driver." : trunk_errmsg[err],
6114                                 trunk_port_fault(0), trunk_port_fault(1),
6115                                 trunk_port_fault(2), trunk_port_fault(3));
6116 }
6117
6118
6119 /**
6120  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
6121  * @phba: pointer to lpfc hba data structure.
6122  * @acqe_fc: pointer to the async fc completion queue entry.
6123  *
6124  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
6125  * that the event was received and then issue a read_topology mailbox command so
6126  * that the rest of the driver will treat it the same as SLI3.
6127  **/
6128 static void
6129 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
6130 {
6131         struct lpfc_dmabuf *mp;
6132         LPFC_MBOXQ_t *pmb;
6133         MAILBOX_t *mb;
6134         struct lpfc_mbx_read_top *la;
6135         int rc;
6136
6137         if (bf_get(lpfc_trailer_type, acqe_fc) !=
6138             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
6139                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6140                                 "2895 Non FC link Event detected.(%d)\n",
6141                                 bf_get(lpfc_trailer_type, acqe_fc));
6142                 return;
6143         }
6144
6145         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
6146             LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
6147                 lpfc_update_trunk_link_status(phba, acqe_fc);
6148                 return;
6149         }
6150
6151         /* Keep the link status for extra SLI4 state machine reference */
6152         phba->sli4_hba.link_state.speed =
6153                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
6154                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6155         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
6156         phba->sli4_hba.link_state.topology =
6157                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
6158         phba->sli4_hba.link_state.status =
6159                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
6160         phba->sli4_hba.link_state.type =
6161                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
6162         phba->sli4_hba.link_state.number =
6163                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
6164         phba->sli4_hba.link_state.fault =
6165                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
6166
6167         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
6168             LPFC_FC_LA_TYPE_LINK_DOWN)
6169                 phba->sli4_hba.link_state.logical_speed = 0;
6170         else if (!phba->sli4_hba.conf_trunk)
6171                 phba->sli4_hba.link_state.logical_speed =
6172                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
6173
6174         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6175                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
6176                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
6177                         "%dMbps Fault:%d\n",
6178                         phba->sli4_hba.link_state.speed,
6179                         phba->sli4_hba.link_state.topology,
6180                         phba->sli4_hba.link_state.status,
6181                         phba->sli4_hba.link_state.type,
6182                         phba->sli4_hba.link_state.number,
6183                         phba->sli4_hba.link_state.logical_speed,
6184                         phba->sli4_hba.link_state.fault);
6185         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6186         if (!pmb) {
6187                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6188                                 "2897 The mboxq allocation failed\n");
6189                 return;
6190         }
6191         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6192         if (!mp) {
6193                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6194                                 "2898 The lpfc_dmabuf allocation failed\n");
6195                 goto out_free_pmb;
6196         }
6197         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
6198         if (!mp->virt) {
6199                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6200                                 "2899 The mbuf allocation failed\n");
6201                 goto out_free_dmabuf;
6202         }
6203
6204         /* Cleanup any outstanding ELS commands */
6205         lpfc_els_flush_all_cmd(phba);
6206
6207         /* Block ELS IOCBs until we have done process link event */
6208         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
6209
6210         /* Update link event statistics */
6211         phba->sli.slistat.link_event++;
6212
6213         /* Create lpfc_handle_latt mailbox command from link ACQE */
6214         lpfc_read_topology(phba, pmb, mp);
6215         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
6216         pmb->vport = phba->pport;
6217
6218         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
6219                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
6220
6221                 switch (phba->sli4_hba.link_state.status) {
6222                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
6223                         phba->link_flag |= LS_MDS_LINK_DOWN;
6224                         break;
6225                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
6226                         phba->link_flag |= LS_MDS_LOOPBACK;
6227                         break;
6228                 default:
6229                         break;
6230                 }
6231
6232                 /* Initialize completion status */
6233                 mb = &pmb->u.mb;
6234                 mb->mbxStatus = MBX_SUCCESS;
6235
6236                 /* Parse port fault information field */
6237                 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
6238
6239                 /* Parse and translate link attention fields */
6240                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
6241                 la->eventTag = acqe_fc->event_tag;
6242
6243                 if (phba->sli4_hba.link_state.status ==
6244                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
6245                         bf_set(lpfc_mbx_read_top_att_type, la,
6246                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
6247                 } else {
6248                         bf_set(lpfc_mbx_read_top_att_type, la,
6249                                LPFC_FC_LA_TYPE_LINK_DOWN);
6250                 }
6251                 /* Invoke the mailbox command callback function */
6252                 lpfc_mbx_cmpl_read_topology(phba, pmb);
6253
6254                 return;
6255         }
6256
6257         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
6258         if (rc == MBX_NOT_FINISHED) {
6259                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6260                 goto out_free_dmabuf;
6261         }
6262         return;
6263
6264 out_free_dmabuf:
6265         kfree(mp);
6266 out_free_pmb:
6267         mempool_free(pmb, phba->mbox_mem_pool);
6268 }
6269
6270 /**
6271  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
6272  * @phba: pointer to lpfc hba data structure.
6273  * @acqe_sli: pointer to the async SLI completion queue entry.
6274  *
6275  * This routine is to handle the SLI4 asynchronous SLI events.
6276  **/
6277 static void
6278 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
6279 {
6280         char port_name;
6281         char message[128];
6282         uint8_t status;
6283         uint8_t evt_type;
6284         uint8_t operational = 0;
6285         struct temp_event temp_event_data;
6286         struct lpfc_acqe_misconfigured_event *misconfigured;
6287         struct lpfc_acqe_cgn_signal *cgn_signal;
6288         struct Scsi_Host  *shost;
6289         struct lpfc_vport **vports;
6290         int rc, i, cnt;
6291
6292         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
6293
6294         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6295                         "2901 Async SLI event - Type:%d, Event Data: x%08x "
6296                         "x%08x x%08x x%08x\n", evt_type,
6297                         acqe_sli->event_data1, acqe_sli->event_data2,
6298                         acqe_sli->reserved, acqe_sli->trailer);
6299
6300         port_name = phba->Port[0];
6301         if (port_name == 0x00)
6302                 port_name = '?'; /* get port name is empty */
6303
6304         switch (evt_type) {
6305         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
6306                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6307                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
6308                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
6309
6310                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6311                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
6312                                 acqe_sli->event_data1, port_name);
6313
6314                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
6315                 shost = lpfc_shost_from_vport(phba->pport);
6316                 fc_host_post_vendor_event(shost, fc_get_event_number(),
6317                                           sizeof(temp_event_data),
6318                                           (char *)&temp_event_data,
6319                                           SCSI_NL_VID_TYPE_PCI
6320                                           | PCI_VENDOR_ID_EMULEX);
6321                 break;
6322         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
6323                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6324                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
6325                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
6326
6327                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6328                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
6329                                 acqe_sli->event_data1, port_name);
6330
6331                 shost = lpfc_shost_from_vport(phba->pport);
6332                 fc_host_post_vendor_event(shost, fc_get_event_number(),
6333                                           sizeof(temp_event_data),
6334                                           (char *)&temp_event_data,
6335                                           SCSI_NL_VID_TYPE_PCI
6336                                           | PCI_VENDOR_ID_EMULEX);
6337                 break;
6338         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
6339                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
6340                                         &acqe_sli->event_data1;
6341
6342                 /* fetch the status for this port */
6343                 switch (phba->sli4_hba.lnk_info.lnk_no) {
6344                 case LPFC_LINK_NUMBER_0:
6345                         status = bf_get(lpfc_sli_misconfigured_port0_state,
6346                                         &misconfigured->theEvent);
6347                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
6348                                         &misconfigured->theEvent);
6349                         break;
6350                 case LPFC_LINK_NUMBER_1:
6351                         status = bf_get(lpfc_sli_misconfigured_port1_state,
6352                                         &misconfigured->theEvent);
6353                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
6354                                         &misconfigured->theEvent);
6355                         break;
6356                 case LPFC_LINK_NUMBER_2:
6357                         status = bf_get(lpfc_sli_misconfigured_port2_state,
6358                                         &misconfigured->theEvent);
6359                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
6360                                         &misconfigured->theEvent);
6361                         break;
6362                 case LPFC_LINK_NUMBER_3:
6363                         status = bf_get(lpfc_sli_misconfigured_port3_state,
6364                                         &misconfigured->theEvent);
6365                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
6366                                         &misconfigured->theEvent);
6367                         break;
6368                 default:
6369                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6370                                         "3296 "
6371                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
6372                                         "event: Invalid link %d",
6373                                         phba->sli4_hba.lnk_info.lnk_no);
6374                         return;
6375                 }
6376
6377                 /* Skip if optic state unchanged */
6378                 if (phba->sli4_hba.lnk_info.optic_state == status)
6379                         return;
6380
6381                 switch (status) {
6382                 case LPFC_SLI_EVENT_STATUS_VALID:
6383                         sprintf(message, "Physical Link is functional");
6384                         break;
6385                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
6386                         sprintf(message, "Optics faulted/incorrectly "
6387                                 "installed/not installed - Reseat optics, "
6388                                 "if issue not resolved, replace.");
6389                         break;
6390                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
6391                         sprintf(message,
6392                                 "Optics of two types installed - Remove one "
6393                                 "optic or install matching pair of optics.");
6394                         break;
6395                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
6396                         sprintf(message, "Incompatible optics - Replace with "
6397                                 "compatible optics for card to function.");
6398                         break;
6399                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
6400                         sprintf(message, "Unqualified optics - Replace with "
6401                                 "Avago optics for Warranty and Technical "
6402                                 "Support - Link is%s operational",
6403                                 (operational) ? " not" : "");
6404                         break;
6405                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
6406                         sprintf(message, "Uncertified optics - Replace with "
6407                                 "Avago-certified optics to enable link "
6408                                 "operation - Link is%s operational",
6409                                 (operational) ? " not" : "");
6410                         break;
6411                 default:
6412                         /* firmware is reporting a status we don't know about */
6413                         sprintf(message, "Unknown event status x%02x", status);
6414                         break;
6415                 }
6416
6417                 /* Issue READ_CONFIG mbox command to refresh supported speeds */
6418                 rc = lpfc_sli4_read_config(phba);
6419                 if (rc) {
6420                         phba->lmt = 0;
6421                         lpfc_printf_log(phba, KERN_ERR,
6422                                         LOG_TRACE_EVENT,
6423                                         "3194 Unable to retrieve supported "
6424                                         "speeds, rc = 0x%x\n", rc);
6425                 }
6426                 vports = lpfc_create_vport_work_array(phba);
6427                 if (vports != NULL) {
6428                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
6429                                         i++) {
6430                                 shost = lpfc_shost_from_vport(vports[i]);
6431                                 lpfc_host_supported_speeds_set(shost);
6432                         }
6433                 }
6434                 lpfc_destroy_vport_work_array(phba, vports);
6435
6436                 phba->sli4_hba.lnk_info.optic_state = status;
6437                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6438                                 "3176 Port Name %c %s\n", port_name, message);
6439                 break;
6440         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
6441                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6442                                 "3192 Remote DPort Test Initiated - "
6443                                 "Event Data1:x%08x Event Data2: x%08x\n",
6444                                 acqe_sli->event_data1, acqe_sli->event_data2);
6445                 break;
6446         case LPFC_SLI_EVENT_TYPE_PORT_PARAMS_CHG:
6447                 /* Call FW to obtain active parms */
6448                 lpfc_sli4_cgn_parm_chg_evt(phba);
6449                 break;
6450         case LPFC_SLI_EVENT_TYPE_MISCONF_FAWWN:
6451                 /* Misconfigured WWN. Reports that the SLI Port is configured
6452                  * to use FA-WWN, but the attached device doesn’t support it.
6453                  * No driver action is required.
6454                  * Event Data1 - N.A, Event Data2 - N.A
6455                  */
6456                 lpfc_log_msg(phba, KERN_WARNING, LOG_SLI,
6457                              "2699 Misconfigured FA-WWN - Attached device does "
6458                              "not support FA-WWN\n");
6459                 break;
6460         case LPFC_SLI_EVENT_TYPE_EEPROM_FAILURE:
6461                 /* EEPROM failure. No driver action is required */
6462                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6463                              "2518 EEPROM failure - "
6464                              "Event Data1: x%08x Event Data2: x%08x\n",
6465                              acqe_sli->event_data1, acqe_sli->event_data2);
6466                 break;
6467         case LPFC_SLI_EVENT_TYPE_CGN_SIGNAL:
6468                 if (phba->cmf_active_mode == LPFC_CFG_OFF)
6469                         break;
6470                 cgn_signal = (struct lpfc_acqe_cgn_signal *)
6471                                         &acqe_sli->event_data1;
6472                 phba->cgn_acqe_cnt++;
6473
6474                 cnt = bf_get(lpfc_warn_acqe, cgn_signal);
6475                 atomic64_add(cnt, &phba->cgn_acqe_stat.warn);
6476                 atomic64_add(cgn_signal->alarm_cnt, &phba->cgn_acqe_stat.alarm);
6477
6478                 /* no threshold for CMF, even 1 signal will trigger an event */
6479
6480                 /* Alarm overrides warning, so check that first */
6481                 if (cgn_signal->alarm_cnt) {
6482                         if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
6483                                 /* Keep track of alarm cnt for CMF_SYNC_WQE */
6484                                 atomic_add(cgn_signal->alarm_cnt,
6485                                            &phba->cgn_sync_alarm_cnt);
6486                         }
6487                 } else if (cnt) {
6488                         /* signal action needs to be taken */
6489                         if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
6490                             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
6491                                 /* Keep track of warning cnt for CMF_SYNC_WQE */
6492                                 atomic_add(cnt, &phba->cgn_sync_warn_cnt);
6493                         }
6494                 }
6495                 break;
6496         default:
6497                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6498                                 "3193 Unrecognized SLI event, type: 0x%x",
6499                                 evt_type);
6500                 break;
6501         }
6502 }
6503
6504 /**
6505  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
6506  * @vport: pointer to vport data structure.
6507  *
6508  * This routine is to perform Clear Virtual Link (CVL) on a vport in
6509  * response to a CVL event.
6510  *
6511  * Return the pointer to the ndlp with the vport if successful, otherwise
6512  * return NULL.
6513  **/
6514 static struct lpfc_nodelist *
6515 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
6516 {
6517         struct lpfc_nodelist *ndlp;
6518         struct Scsi_Host *shost;
6519         struct lpfc_hba *phba;
6520
6521         if (!vport)
6522                 return NULL;
6523         phba = vport->phba;
6524         if (!phba)
6525                 return NULL;
6526         ndlp = lpfc_findnode_did(vport, Fabric_DID);
6527         if (!ndlp) {
6528                 /* Cannot find existing Fabric ndlp, so allocate a new one */
6529                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
6530                 if (!ndlp)
6531                         return 0;
6532                 /* Set the node type */
6533                 ndlp->nlp_type |= NLP_FABRIC;
6534                 /* Put ndlp onto node list */
6535                 lpfc_enqueue_node(vport, ndlp);
6536         }
6537         if ((phba->pport->port_state < LPFC_FLOGI) &&
6538                 (phba->pport->port_state != LPFC_VPORT_FAILED))
6539                 return NULL;
6540         /* If virtual link is not yet instantiated ignore CVL */
6541         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
6542                 && (vport->port_state != LPFC_VPORT_FAILED))
6543                 return NULL;
6544         shost = lpfc_shost_from_vport(vport);
6545         if (!shost)
6546                 return NULL;
6547         lpfc_linkdown_port(vport);
6548         lpfc_cleanup_pending_mbox(vport);
6549         spin_lock_irq(shost->host_lock);
6550         vport->fc_flag |= FC_VPORT_CVL_RCVD;
6551         spin_unlock_irq(shost->host_lock);
6552
6553         return ndlp;
6554 }
6555
6556 /**
6557  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
6558  * @phba: pointer to lpfc hba data structure.
6559  *
6560  * This routine is to perform Clear Virtual Link (CVL) on all vports in
6561  * response to a FCF dead event.
6562  **/
6563 static void
6564 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
6565 {
6566         struct lpfc_vport **vports;
6567         int i;
6568
6569         vports = lpfc_create_vport_work_array(phba);
6570         if (vports)
6571                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
6572                         lpfc_sli4_perform_vport_cvl(vports[i]);
6573         lpfc_destroy_vport_work_array(phba, vports);
6574 }
6575
6576 /**
6577  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
6578  * @phba: pointer to lpfc hba data structure.
6579  * @acqe_fip: pointer to the async fcoe completion queue entry.
6580  *
6581  * This routine is to handle the SLI4 asynchronous fcoe event.
6582  **/
6583 static void
6584 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
6585                         struct lpfc_acqe_fip *acqe_fip)
6586 {
6587         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
6588         int rc;
6589         struct lpfc_vport *vport;
6590         struct lpfc_nodelist *ndlp;
6591         int active_vlink_present;
6592         struct lpfc_vport **vports;
6593         int i;
6594
6595         phba->fc_eventTag = acqe_fip->event_tag;
6596         phba->fcoe_eventtag = acqe_fip->event_tag;
6597         switch (event_type) {
6598         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
6599         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
6600                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
6601                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6602                                         "2546 New FCF event, evt_tag:x%x, "
6603                                         "index:x%x\n",
6604                                         acqe_fip->event_tag,
6605                                         acqe_fip->index);
6606                 else
6607                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
6608                                         LOG_DISCOVERY,
6609                                         "2788 FCF param modified event, "
6610                                         "evt_tag:x%x, index:x%x\n",
6611                                         acqe_fip->event_tag,
6612                                         acqe_fip->index);
6613                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
6614                         /*
6615                          * During period of FCF discovery, read the FCF
6616                          * table record indexed by the event to update
6617                          * FCF roundrobin failover eligible FCF bmask.
6618                          */
6619                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
6620                                         LOG_DISCOVERY,
6621                                         "2779 Read FCF (x%x) for updating "
6622                                         "roundrobin FCF failover bmask\n",
6623                                         acqe_fip->index);
6624                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
6625                 }
6626
6627                 /* If the FCF discovery is in progress, do nothing. */
6628                 spin_lock_irq(&phba->hbalock);
6629                 if (phba->hba_flag & FCF_TS_INPROG) {
6630                         spin_unlock_irq(&phba->hbalock);
6631                         break;
6632                 }
6633                 /* If fast FCF failover rescan event is pending, do nothing */
6634                 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
6635                         spin_unlock_irq(&phba->hbalock);
6636                         break;
6637                 }
6638
6639                 /* If the FCF has been in discovered state, do nothing. */
6640                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
6641                         spin_unlock_irq(&phba->hbalock);
6642                         break;
6643                 }
6644                 spin_unlock_irq(&phba->hbalock);
6645
6646                 /* Otherwise, scan the entire FCF table and re-discover SAN */
6647                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6648                                 "2770 Start FCF table scan per async FCF "
6649                                 "event, evt_tag:x%x, index:x%x\n",
6650                                 acqe_fip->event_tag, acqe_fip->index);
6651                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
6652                                                      LPFC_FCOE_FCF_GET_FIRST);
6653                 if (rc)
6654                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6655                                         "2547 Issue FCF scan read FCF mailbox "
6656                                         "command failed (x%x)\n", rc);
6657                 break;
6658
6659         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
6660                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6661                                 "2548 FCF Table full count 0x%x tag 0x%x\n",
6662                                 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
6663                                 acqe_fip->event_tag);
6664                 break;
6665
6666         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
6667                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
6668                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6669                                 "2549 FCF (x%x) disconnected from network, "
6670                                  "tag:x%x\n", acqe_fip->index,
6671                                  acqe_fip->event_tag);
6672                 /*
6673                  * If we are in the middle of FCF failover process, clear
6674                  * the corresponding FCF bit in the roundrobin bitmap.
6675                  */
6676                 spin_lock_irq(&phba->hbalock);
6677                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
6678                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
6679                         spin_unlock_irq(&phba->hbalock);
6680                         /* Update FLOGI FCF failover eligible FCF bmask */
6681                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
6682                         break;
6683                 }
6684                 spin_unlock_irq(&phba->hbalock);
6685
6686                 /* If the event is not for currently used fcf do nothing */
6687                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
6688                         break;
6689
6690                 /*
6691                  * Otherwise, request the port to rediscover the entire FCF
6692                  * table for a fast recovery from case that the current FCF
6693                  * is no longer valid as we are not in the middle of FCF
6694                  * failover process already.
6695                  */
6696                 spin_lock_irq(&phba->hbalock);
6697                 /* Mark the fast failover process in progress */
6698                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
6699                 spin_unlock_irq(&phba->hbalock);
6700
6701                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6702                                 "2771 Start FCF fast failover process due to "
6703                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
6704                                 "\n", acqe_fip->event_tag, acqe_fip->index);
6705                 rc = lpfc_sli4_redisc_fcf_table(phba);
6706                 if (rc) {
6707                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
6708                                         LOG_TRACE_EVENT,
6709                                         "2772 Issue FCF rediscover mailbox "
6710                                         "command failed, fail through to FCF "
6711                                         "dead event\n");
6712                         spin_lock_irq(&phba->hbalock);
6713                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
6714                         spin_unlock_irq(&phba->hbalock);
6715                         /*
6716                          * Last resort will fail over by treating this
6717                          * as a link down to FCF registration.
6718                          */
6719                         lpfc_sli4_fcf_dead_failthrough(phba);
6720                 } else {
6721                         /* Reset FCF roundrobin bmask for new discovery */
6722                         lpfc_sli4_clear_fcf_rr_bmask(phba);
6723                         /*
6724                          * Handling fast FCF failover to a DEAD FCF event is
6725                          * considered equalivant to receiving CVL to all vports.
6726                          */
6727                         lpfc_sli4_perform_all_vport_cvl(phba);
6728                 }
6729                 break;
6730         case LPFC_FIP_EVENT_TYPE_CVL:
6731                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
6732                 lpfc_printf_log(phba, KERN_ERR,
6733                                 LOG_TRACE_EVENT,
6734                         "2718 Clear Virtual Link Received for VPI 0x%x"
6735                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
6736
6737                 vport = lpfc_find_vport_by_vpid(phba,
6738                                                 acqe_fip->index);
6739                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
6740                 if (!ndlp)
6741                         break;
6742                 active_vlink_present = 0;
6743
6744                 vports = lpfc_create_vport_work_array(phba);
6745                 if (vports) {
6746                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
6747                                         i++) {
6748                                 if ((!(vports[i]->fc_flag &
6749                                         FC_VPORT_CVL_RCVD)) &&
6750                                         (vports[i]->port_state > LPFC_FDISC)) {
6751                                         active_vlink_present = 1;
6752                                         break;
6753                                 }
6754                         }
6755                         lpfc_destroy_vport_work_array(phba, vports);
6756                 }
6757
6758                 /*
6759                  * Don't re-instantiate if vport is marked for deletion.
6760                  * If we are here first then vport_delete is going to wait
6761                  * for discovery to complete.
6762                  */
6763                 if (!(vport->load_flag & FC_UNLOADING) &&
6764                                         active_vlink_present) {
6765                         /*
6766                          * If there are other active VLinks present,
6767                          * re-instantiate the Vlink using FDISC.
6768                          */
6769                         mod_timer(&ndlp->nlp_delayfunc,
6770                                   jiffies + msecs_to_jiffies(1000));
6771                         spin_lock_irq(&ndlp->lock);
6772                         ndlp->nlp_flag |= NLP_DELAY_TMO;
6773                         spin_unlock_irq(&ndlp->lock);
6774                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
6775                         vport->port_state = LPFC_FDISC;
6776                 } else {
6777                         /*
6778                          * Otherwise, we request port to rediscover
6779                          * the entire FCF table for a fast recovery
6780                          * from possible case that the current FCF
6781                          * is no longer valid if we are not already
6782                          * in the FCF failover process.
6783                          */
6784                         spin_lock_irq(&phba->hbalock);
6785                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
6786                                 spin_unlock_irq(&phba->hbalock);
6787                                 break;
6788                         }
6789                         /* Mark the fast failover process in progress */
6790                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
6791                         spin_unlock_irq(&phba->hbalock);
6792                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
6793                                         LOG_DISCOVERY,
6794                                         "2773 Start FCF failover per CVL, "
6795                                         "evt_tag:x%x\n", acqe_fip->event_tag);
6796                         rc = lpfc_sli4_redisc_fcf_table(phba);
6797                         if (rc) {
6798                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
6799                                                 LOG_TRACE_EVENT,
6800                                                 "2774 Issue FCF rediscover "
6801                                                 "mailbox command failed, "
6802                                                 "through to CVL event\n");
6803                                 spin_lock_irq(&phba->hbalock);
6804                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
6805                                 spin_unlock_irq(&phba->hbalock);
6806                                 /*
6807                                  * Last resort will be re-try on the
6808                                  * the current registered FCF entry.
6809                                  */
6810                                 lpfc_retry_pport_discovery(phba);
6811                         } else
6812                                 /*
6813                                  * Reset FCF roundrobin bmask for new
6814                                  * discovery.
6815                                  */
6816                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
6817                 }
6818                 break;
6819         default:
6820                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6821                                 "0288 Unknown FCoE event type 0x%x event tag "
6822                                 "0x%x\n", event_type, acqe_fip->event_tag);
6823                 break;
6824         }
6825 }
6826
6827 /**
6828  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
6829  * @phba: pointer to lpfc hba data structure.
6830  * @acqe_dcbx: pointer to the async dcbx completion queue entry.
6831  *
6832  * This routine is to handle the SLI4 asynchronous dcbx event.
6833  **/
6834 static void
6835 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
6836                          struct lpfc_acqe_dcbx *acqe_dcbx)
6837 {
6838         phba->fc_eventTag = acqe_dcbx->event_tag;
6839         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6840                         "0290 The SLI4 DCBX asynchronous event is not "
6841                         "handled yet\n");
6842 }
6843
6844 /**
6845  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
6846  * @phba: pointer to lpfc hba data structure.
6847  * @acqe_grp5: pointer to the async grp5 completion queue entry.
6848  *
6849  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
6850  * is an asynchronous notified of a logical link speed change.  The Port
6851  * reports the logical link speed in units of 10Mbps.
6852  **/
6853 static void
6854 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
6855                          struct lpfc_acqe_grp5 *acqe_grp5)
6856 {
6857         uint16_t prev_ll_spd;
6858
6859         phba->fc_eventTag = acqe_grp5->event_tag;
6860         phba->fcoe_eventtag = acqe_grp5->event_tag;
6861         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
6862         phba->sli4_hba.link_state.logical_speed =
6863                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
6864         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6865                         "2789 GRP5 Async Event: Updating logical link speed "
6866                         "from %dMbps to %dMbps\n", prev_ll_spd,
6867                         phba->sli4_hba.link_state.logical_speed);
6868 }
6869
6870 /**
6871  * lpfc_sli4_async_cmstat_evt - Process the asynchronous cmstat event
6872  * @phba: pointer to lpfc hba data structure.
6873  *
6874  * This routine is to handle the SLI4 asynchronous cmstat event. A cmstat event
6875  * is an asynchronous notification of a request to reset CM stats.
6876  **/
6877 static void
6878 lpfc_sli4_async_cmstat_evt(struct lpfc_hba *phba)
6879 {
6880         if (!phba->cgn_i)
6881                 return;
6882         lpfc_init_congestion_stat(phba);
6883 }
6884
6885 /**
6886  * lpfc_cgn_params_val - Validate FW congestion parameters.
6887  * @phba: pointer to lpfc hba data structure.
6888  * @p_cfg_param: pointer to FW provided congestion parameters.
6889  *
6890  * This routine validates the congestion parameters passed
6891  * by the FW to the driver via an ACQE event.
6892  **/
6893 static void
6894 lpfc_cgn_params_val(struct lpfc_hba *phba, struct lpfc_cgn_param *p_cfg_param)
6895 {
6896         spin_lock_irq(&phba->hbalock);
6897
6898         if (!lpfc_rangecheck(p_cfg_param->cgn_param_mode, LPFC_CFG_OFF,
6899                              LPFC_CFG_MONITOR)) {
6900                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT,
6901                                 "6225 CMF mode param out of range: %d\n",
6902                                  p_cfg_param->cgn_param_mode);
6903                 p_cfg_param->cgn_param_mode = LPFC_CFG_OFF;
6904         }
6905
6906         spin_unlock_irq(&phba->hbalock);
6907 }
6908
6909 /**
6910  * lpfc_cgn_params_parse - Process a FW cong parm change event
6911  * @phba: pointer to lpfc hba data structure.
6912  * @p_cgn_param: pointer to a data buffer with the FW cong params.
6913  * @len: the size of pdata in bytes.
6914  *
6915  * This routine validates the congestion management buffer signature
6916  * from the FW, validates the contents and makes corrections for
6917  * valid, in-range values.  If the signature magic is correct and
6918  * after parameter validation, the contents are copied to the driver's
6919  * @phba structure. If the magic is incorrect, an error message is
6920  * logged.
6921  **/
6922 static void
6923 lpfc_cgn_params_parse(struct lpfc_hba *phba,
6924                       struct lpfc_cgn_param *p_cgn_param, uint32_t len)
6925 {
6926         struct lpfc_cgn_info *cp;
6927         uint32_t crc, oldmode;
6928
6929         /* Make sure the FW has encoded the correct magic number to
6930          * validate the congestion parameter in FW memory.
6931          */
6932         if (p_cgn_param->cgn_param_magic == LPFC_CFG_PARAM_MAGIC_NUM) {
6933                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
6934                                 "4668 FW cgn parm buffer data: "
6935                                 "magic 0x%x version %d mode %d "
6936                                 "level0 %d level1 %d "
6937                                 "level2 %d byte13 %d "
6938                                 "byte14 %d byte15 %d "
6939                                 "byte11 %d byte12 %d activeMode %d\n",
6940                                 p_cgn_param->cgn_param_magic,
6941                                 p_cgn_param->cgn_param_version,
6942                                 p_cgn_param->cgn_param_mode,
6943                                 p_cgn_param->cgn_param_level0,
6944                                 p_cgn_param->cgn_param_level1,
6945                                 p_cgn_param->cgn_param_level2,
6946                                 p_cgn_param->byte13,
6947                                 p_cgn_param->byte14,
6948                                 p_cgn_param->byte15,
6949                                 p_cgn_param->byte11,
6950                                 p_cgn_param->byte12,
6951                                 phba->cmf_active_mode);
6952
6953                 oldmode = phba->cmf_active_mode;
6954
6955                 /* Any parameters out of range are corrected to defaults
6956                  * by this routine.  No need to fail.
6957                  */
6958                 lpfc_cgn_params_val(phba, p_cgn_param);
6959
6960                 /* Parameters are verified, move them into driver storage */
6961                 spin_lock_irq(&phba->hbalock);
6962                 memcpy(&phba->cgn_p, p_cgn_param,
6963                        sizeof(struct lpfc_cgn_param));
6964
6965                 /* Update parameters in congestion info buffer now */
6966                 if (phba->cgn_i) {
6967                         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
6968                         cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
6969                         cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
6970                         cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
6971                         cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
6972                         crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
6973                                                   LPFC_CGN_CRC32_SEED);
6974                         cp->cgn_info_crc = cpu_to_le32(crc);
6975                 }
6976                 spin_unlock_irq(&phba->hbalock);
6977
6978                 phba->cmf_active_mode = phba->cgn_p.cgn_param_mode;
6979
6980                 switch (oldmode) {
6981                 case LPFC_CFG_OFF:
6982                         if (phba->cgn_p.cgn_param_mode != LPFC_CFG_OFF) {
6983                                 /* Turning CMF on */
6984                                 lpfc_cmf_start(phba);
6985
6986                                 if (phba->link_state >= LPFC_LINK_UP) {
6987                                         phba->cgn_reg_fpin =
6988                                                 phba->cgn_init_reg_fpin;
6989                                         phba->cgn_reg_signal =
6990                                                 phba->cgn_init_reg_signal;
6991                                         lpfc_issue_els_edc(phba->pport, 0);
6992                                 }
6993                         }
6994                         break;
6995                 case LPFC_CFG_MANAGED:
6996                         switch (phba->cgn_p.cgn_param_mode) {
6997                         case LPFC_CFG_OFF:
6998                                 /* Turning CMF off */
6999                                 lpfc_cmf_stop(phba);
7000                                 if (phba->link_state >= LPFC_LINK_UP)
7001                                         lpfc_issue_els_edc(phba->pport, 0);
7002                                 break;
7003                         case LPFC_CFG_MONITOR:
7004                                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
7005                                                 "4661 Switch from MANAGED to "
7006                                                 "`MONITOR mode\n");
7007                                 phba->cmf_max_bytes_per_interval =
7008                                         phba->cmf_link_byte_count;
7009
7010                                 /* Resume blocked IO - unblock on workqueue */
7011                                 queue_work(phba->wq,
7012                                            &phba->unblock_request_work);
7013                                 break;
7014                         }
7015                         break;
7016                 case LPFC_CFG_MONITOR:
7017                         switch (phba->cgn_p.cgn_param_mode) {
7018                         case LPFC_CFG_OFF:
7019                                 /* Turning CMF off */
7020                                 lpfc_cmf_stop(phba);
7021                                 if (phba->link_state >= LPFC_LINK_UP)
7022                                         lpfc_issue_els_edc(phba->pport, 0);
7023                                 break;
7024                         case LPFC_CFG_MANAGED:
7025                                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
7026                                                 "4662 Switch from MONITOR to "
7027                                                 "MANAGED mode\n");
7028                                 lpfc_cmf_signal_init(phba);
7029                                 break;
7030                         }
7031                         break;
7032                 }
7033         } else {
7034                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7035                                 "4669 FW cgn parm buf wrong magic 0x%x "
7036                                 "version %d\n", p_cgn_param->cgn_param_magic,
7037                                 p_cgn_param->cgn_param_version);
7038         }
7039 }
7040
7041 /**
7042  * lpfc_sli4_cgn_params_read - Read and Validate FW congestion parameters.
7043  * @phba: pointer to lpfc hba data structure.
7044  *
7045  * This routine issues a read_object mailbox command to
7046  * get the congestion management parameters from the FW
7047  * parses it and updates the driver maintained values.
7048  *
7049  * Returns
7050  *  0     if the object was empty
7051  *  -Eval if an error was encountered
7052  *  Count if bytes were read from object
7053  **/
7054 int
7055 lpfc_sli4_cgn_params_read(struct lpfc_hba *phba)
7056 {
7057         int ret = 0;
7058         struct lpfc_cgn_param *p_cgn_param = NULL;
7059         u32 *pdata = NULL;
7060         u32 len = 0;
7061
7062         /* Find out if the FW has a new set of congestion parameters. */
7063         len = sizeof(struct lpfc_cgn_param);
7064         pdata = kzalloc(len, GFP_KERNEL);
7065         ret = lpfc_read_object(phba, (char *)LPFC_PORT_CFG_NAME,
7066                                pdata, len);
7067
7068         /* 0 means no data.  A negative means error.  A positive means
7069          * bytes were copied.
7070          */
7071         if (!ret) {
7072                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7073                                 "4670 CGN RD OBJ returns no data\n");
7074                 goto rd_obj_err;
7075         } else if (ret < 0) {
7076                 /* Some error.  Just exit and return it to the caller.*/
7077                 goto rd_obj_err;
7078         }
7079
7080         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
7081                         "6234 READ CGN PARAMS Successful %d\n", len);
7082
7083         /* Parse data pointer over len and update the phba congestion
7084          * parameters with values passed back.  The receive rate values
7085          * may have been altered in FW, but take no action here.
7086          */
7087         p_cgn_param = (struct lpfc_cgn_param *)pdata;
7088         lpfc_cgn_params_parse(phba, p_cgn_param, len);
7089
7090  rd_obj_err:
7091         kfree(pdata);
7092         return ret;
7093 }
7094
7095 /**
7096  * lpfc_sli4_cgn_parm_chg_evt - Process a FW congestion param change event
7097  * @phba: pointer to lpfc hba data structure.
7098  *
7099  * The FW generated Async ACQE SLI event calls this routine when
7100  * the event type is an SLI Internal Port Event and the Event Code
7101  * indicates a change to the FW maintained congestion parameters.
7102  *
7103  * This routine executes a Read_Object mailbox call to obtain the
7104  * current congestion parameters maintained in FW and corrects
7105  * the driver's active congestion parameters.
7106  *
7107  * The acqe event is not passed because there is no further data
7108  * required.
7109  *
7110  * Returns nonzero error if event processing encountered an error.
7111  * Zero otherwise for success.
7112  **/
7113 static int
7114 lpfc_sli4_cgn_parm_chg_evt(struct lpfc_hba *phba)
7115 {
7116         int ret = 0;
7117
7118         if (!phba->sli4_hba.pc_sli4_params.cmf) {
7119                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7120                                 "4664 Cgn Evt when E2E off. Drop event\n");
7121                 return -EACCES;
7122         }
7123
7124         /* If the event is claiming an empty object, it's ok.  A write
7125          * could have cleared it.  Only error is a negative return
7126          * status.
7127          */
7128         ret = lpfc_sli4_cgn_params_read(phba);
7129         if (ret < 0) {
7130                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7131                                 "4667 Error reading Cgn Params (%d)\n",
7132                                 ret);
7133         } else if (!ret) {
7134                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7135                                 "4673 CGN Event empty object.\n");
7136         }
7137         return ret;
7138 }
7139
7140 /**
7141  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
7142  * @phba: pointer to lpfc hba data structure.
7143  *
7144  * This routine is invoked by the worker thread to process all the pending
7145  * SLI4 asynchronous events.
7146  **/
7147 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
7148 {
7149         struct lpfc_cq_event *cq_event;
7150         unsigned long iflags;
7151
7152         /* First, declare the async event has been handled */
7153         spin_lock_irqsave(&phba->hbalock, iflags);
7154         phba->hba_flag &= ~ASYNC_EVENT;
7155         spin_unlock_irqrestore(&phba->hbalock, iflags);
7156
7157         /* Now, handle all the async events */
7158         spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
7159         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
7160                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
7161                                  cq_event, struct lpfc_cq_event, list);
7162                 spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock,
7163                                        iflags);
7164
7165                 /* Process the asynchronous event */
7166                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
7167                 case LPFC_TRAILER_CODE_LINK:
7168                         lpfc_sli4_async_link_evt(phba,
7169                                                  &cq_event->cqe.acqe_link);
7170                         break;
7171                 case LPFC_TRAILER_CODE_FCOE:
7172                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
7173                         break;
7174                 case LPFC_TRAILER_CODE_DCBX:
7175                         lpfc_sli4_async_dcbx_evt(phba,
7176                                                  &cq_event->cqe.acqe_dcbx);
7177                         break;
7178                 case LPFC_TRAILER_CODE_GRP5:
7179                         lpfc_sli4_async_grp5_evt(phba,
7180                                                  &cq_event->cqe.acqe_grp5);
7181                         break;
7182                 case LPFC_TRAILER_CODE_FC:
7183                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
7184                         break;
7185                 case LPFC_TRAILER_CODE_SLI:
7186                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
7187                         break;
7188                 case LPFC_TRAILER_CODE_CMSTAT:
7189                         lpfc_sli4_async_cmstat_evt(phba);
7190                         break;
7191                 default:
7192                         lpfc_printf_log(phba, KERN_ERR,
7193                                         LOG_TRACE_EVENT,
7194                                         "1804 Invalid asynchronous event code: "
7195                                         "x%x\n", bf_get(lpfc_trailer_code,
7196                                         &cq_event->cqe.mcqe_cmpl));
7197                         break;
7198                 }
7199
7200                 /* Free the completion event processed to the free pool */
7201                 lpfc_sli4_cq_event_release(phba, cq_event);
7202                 spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
7203         }
7204         spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
7205 }
7206
7207 /**
7208  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
7209  * @phba: pointer to lpfc hba data structure.
7210  *
7211  * This routine is invoked by the worker thread to process FCF table
7212  * rediscovery pending completion event.
7213  **/
7214 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
7215 {
7216         int rc;
7217
7218         spin_lock_irq(&phba->hbalock);
7219         /* Clear FCF rediscovery timeout event */
7220         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
7221         /* Clear driver fast failover FCF record flag */
7222         phba->fcf.failover_rec.flag = 0;
7223         /* Set state for FCF fast failover */
7224         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
7225         spin_unlock_irq(&phba->hbalock);
7226
7227         /* Scan FCF table from the first entry to re-discover SAN */
7228         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
7229                         "2777 Start post-quiescent FCF table scan\n");
7230         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
7231         if (rc)
7232                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7233                                 "2747 Issue FCF scan read FCF mailbox "
7234                                 "command failed 0x%x\n", rc);
7235 }
7236
7237 /**
7238  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
7239  * @phba: pointer to lpfc hba data structure.
7240  * @dev_grp: The HBA PCI-Device group number.
7241  *
7242  * This routine is invoked to set up the per HBA PCI-Device group function
7243  * API jump table entries.
7244  *
7245  * Return: 0 if success, otherwise -ENODEV
7246  **/
7247 int
7248 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7249 {
7250         int rc;
7251
7252         /* Set up lpfc PCI-device group */
7253         phba->pci_dev_grp = dev_grp;
7254
7255         /* The LPFC_PCI_DEV_OC uses SLI4 */
7256         if (dev_grp == LPFC_PCI_DEV_OC)
7257                 phba->sli_rev = LPFC_SLI_REV4;
7258
7259         /* Set up device INIT API function jump table */
7260         rc = lpfc_init_api_table_setup(phba, dev_grp);
7261         if (rc)
7262                 return -ENODEV;
7263         /* Set up SCSI API function jump table */
7264         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
7265         if (rc)
7266                 return -ENODEV;
7267         /* Set up SLI API function jump table */
7268         rc = lpfc_sli_api_table_setup(phba, dev_grp);
7269         if (rc)
7270                 return -ENODEV;
7271         /* Set up MBOX API function jump table */
7272         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
7273         if (rc)
7274                 return -ENODEV;
7275
7276         return 0;
7277 }
7278
7279 /**
7280  * lpfc_log_intr_mode - Log the active interrupt mode
7281  * @phba: pointer to lpfc hba data structure.
7282  * @intr_mode: active interrupt mode adopted.
7283  *
7284  * This routine it invoked to log the currently used active interrupt mode
7285  * to the device.
7286  **/
7287 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
7288 {
7289         switch (intr_mode) {
7290         case 0:
7291                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7292                                 "0470 Enable INTx interrupt mode.\n");
7293                 break;
7294         case 1:
7295                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7296                                 "0481 Enabled MSI interrupt mode.\n");
7297                 break;
7298         case 2:
7299                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7300                                 "0480 Enabled MSI-X interrupt mode.\n");
7301                 break;
7302         default:
7303                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7304                                 "0482 Illegal interrupt mode.\n");
7305                 break;
7306         }
7307         return;
7308 }
7309
7310 /**
7311  * lpfc_enable_pci_dev - Enable a generic PCI device.
7312  * @phba: pointer to lpfc hba data structure.
7313  *
7314  * This routine is invoked to enable the PCI device that is common to all
7315  * PCI devices.
7316  *
7317  * Return codes
7318  *      0 - successful
7319  *      other values - error
7320  **/
7321 static int
7322 lpfc_enable_pci_dev(struct lpfc_hba *phba)
7323 {
7324         struct pci_dev *pdev;
7325
7326         /* Obtain PCI device reference */
7327         if (!phba->pcidev)
7328                 goto out_error;
7329         else
7330                 pdev = phba->pcidev;
7331         /* Enable PCI device */
7332         if (pci_enable_device_mem(pdev))
7333                 goto out_error;
7334         /* Request PCI resource for the device */
7335         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
7336                 goto out_disable_device;
7337         /* Set up device as PCI master and save state for EEH */
7338         pci_set_master(pdev);
7339         pci_try_set_mwi(pdev);
7340         pci_save_state(pdev);
7341
7342         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
7343         if (pci_is_pcie(pdev))
7344                 pdev->needs_freset = 1;
7345
7346         return 0;
7347
7348 out_disable_device:
7349         pci_disable_device(pdev);
7350 out_error:
7351         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7352                         "1401 Failed to enable pci device\n");
7353         return -ENODEV;
7354 }
7355
7356 /**
7357  * lpfc_disable_pci_dev - Disable a generic PCI device.
7358  * @phba: pointer to lpfc hba data structure.
7359  *
7360  * This routine is invoked to disable the PCI device that is common to all
7361  * PCI devices.
7362  **/
7363 static void
7364 lpfc_disable_pci_dev(struct lpfc_hba *phba)
7365 {
7366         struct pci_dev *pdev;
7367
7368         /* Obtain PCI device reference */
7369         if (!phba->pcidev)
7370                 return;
7371         else
7372                 pdev = phba->pcidev;
7373         /* Release PCI resource and disable PCI device */
7374         pci_release_mem_regions(pdev);
7375         pci_disable_device(pdev);
7376
7377         return;
7378 }
7379
7380 /**
7381  * lpfc_reset_hba - Reset a hba
7382  * @phba: pointer to lpfc hba data structure.
7383  *
7384  * This routine is invoked to reset a hba device. It brings the HBA
7385  * offline, performs a board restart, and then brings the board back
7386  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
7387  * on outstanding mailbox commands.
7388  **/
7389 void
7390 lpfc_reset_hba(struct lpfc_hba *phba)
7391 {
7392         /* If resets are disabled then set error state and return. */
7393         if (!phba->cfg_enable_hba_reset) {
7394                 phba->link_state = LPFC_HBA_ERROR;
7395                 return;
7396         }
7397
7398         /* If not LPFC_SLI_ACTIVE, force all IO to be flushed */
7399         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) {
7400                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
7401         } else {
7402                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
7403                 lpfc_sli_flush_io_rings(phba);
7404         }
7405         lpfc_offline(phba);
7406         lpfc_sli_brdrestart(phba);
7407         lpfc_online(phba);
7408         lpfc_unblock_mgmt_io(phba);
7409 }
7410
7411 /**
7412  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
7413  * @phba: pointer to lpfc hba data structure.
7414  *
7415  * This function enables the PCI SR-IOV virtual functions to a physical
7416  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
7417  * enable the number of virtual functions to the physical function. As
7418  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
7419  * API call does not considered as an error condition for most of the device.
7420  **/
7421 uint16_t
7422 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
7423 {
7424         struct pci_dev *pdev = phba->pcidev;
7425         uint16_t nr_virtfn;
7426         int pos;
7427
7428         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
7429         if (pos == 0)
7430                 return 0;
7431
7432         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
7433         return nr_virtfn;
7434 }
7435
7436 /**
7437  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
7438  * @phba: pointer to lpfc hba data structure.
7439  * @nr_vfn: number of virtual functions to be enabled.
7440  *
7441  * This function enables the PCI SR-IOV virtual functions to a physical
7442  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
7443  * enable the number of virtual functions to the physical function. As
7444  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
7445  * API call does not considered as an error condition for most of the device.
7446  **/
7447 int
7448 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
7449 {
7450         struct pci_dev *pdev = phba->pcidev;
7451         uint16_t max_nr_vfn;
7452         int rc;
7453
7454         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
7455         if (nr_vfn > max_nr_vfn) {
7456                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7457                                 "3057 Requested vfs (%d) greater than "
7458                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
7459                 return -EINVAL;
7460         }
7461
7462         rc = pci_enable_sriov(pdev, nr_vfn);
7463         if (rc) {
7464                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7465                                 "2806 Failed to enable sriov on this device "
7466                                 "with vfn number nr_vf:%d, rc:%d\n",
7467                                 nr_vfn, rc);
7468         } else
7469                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7470                                 "2807 Successful enable sriov on this device "
7471                                 "with vfn number nr_vf:%d\n", nr_vfn);
7472         return rc;
7473 }
7474
7475 static void
7476 lpfc_unblock_requests_work(struct work_struct *work)
7477 {
7478         struct lpfc_hba *phba = container_of(work, struct lpfc_hba,
7479                                              unblock_request_work);
7480
7481         lpfc_unblock_requests(phba);
7482 }
7483
7484 /**
7485  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
7486  * @phba: pointer to lpfc hba data structure.
7487  *
7488  * This routine is invoked to set up the driver internal resources before the
7489  * device specific resource setup to support the HBA device it attached to.
7490  *
7491  * Return codes
7492  *      0 - successful
7493  *      other values - error
7494  **/
7495 static int
7496 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
7497 {
7498         struct lpfc_sli *psli = &phba->sli;
7499
7500         /*
7501          * Driver resources common to all SLI revisions
7502          */
7503         atomic_set(&phba->fast_event_count, 0);
7504         atomic_set(&phba->dbg_log_idx, 0);
7505         atomic_set(&phba->dbg_log_cnt, 0);
7506         atomic_set(&phba->dbg_log_dmping, 0);
7507         spin_lock_init(&phba->hbalock);
7508
7509         /* Initialize port_list spinlock */
7510         spin_lock_init(&phba->port_list_lock);
7511         INIT_LIST_HEAD(&phba->port_list);
7512
7513         INIT_LIST_HEAD(&phba->work_list);
7514         init_waitqueue_head(&phba->wait_4_mlo_m_q);
7515
7516         /* Initialize the wait queue head for the kernel thread */
7517         init_waitqueue_head(&phba->work_waitq);
7518
7519         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7520                         "1403 Protocols supported %s %s %s\n",
7521                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
7522                                 "SCSI" : " "),
7523                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
7524                                 "NVME" : " "),
7525                         (phba->nvmet_support ? "NVMET" : " "));
7526
7527         /* Initialize the IO buffer list used by driver for SLI3 SCSI */
7528         spin_lock_init(&phba->scsi_buf_list_get_lock);
7529         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
7530         spin_lock_init(&phba->scsi_buf_list_put_lock);
7531         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
7532
7533         /* Initialize the fabric iocb list */
7534         INIT_LIST_HEAD(&phba->fabric_iocb_list);
7535
7536         /* Initialize list to save ELS buffers */
7537         INIT_LIST_HEAD(&phba->elsbuf);
7538
7539         /* Initialize FCF connection rec list */
7540         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
7541
7542         /* Initialize OAS configuration list */
7543         spin_lock_init(&phba->devicelock);
7544         INIT_LIST_HEAD(&phba->luns);
7545
7546         /* MBOX heartbeat timer */
7547         timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
7548         /* Fabric block timer */
7549         timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
7550         /* EA polling mode timer */
7551         timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
7552         /* Heartbeat timer */
7553         timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
7554
7555         INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
7556
7557         INIT_DELAYED_WORK(&phba->idle_stat_delay_work,
7558                           lpfc_idle_stat_delay_work);
7559         INIT_WORK(&phba->unblock_request_work, lpfc_unblock_requests_work);
7560         return 0;
7561 }
7562
7563 /**
7564  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
7565  * @phba: pointer to lpfc hba data structure.
7566  *
7567  * This routine is invoked to set up the driver internal resources specific to
7568  * support the SLI-3 HBA device it attached to.
7569  *
7570  * Return codes
7571  * 0 - successful
7572  * other values - error
7573  **/
7574 static int
7575 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
7576 {
7577         int rc, entry_sz;
7578
7579         /*
7580          * Initialize timers used by driver
7581          */
7582
7583         /* FCP polling mode timer */
7584         timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
7585
7586         /* Host attention work mask setup */
7587         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
7588         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
7589
7590         /* Get all the module params for configuring this host */
7591         lpfc_get_cfgparam(phba);
7592         /* Set up phase-1 common device driver resources */
7593
7594         rc = lpfc_setup_driver_resource_phase1(phba);
7595         if (rc)
7596                 return -ENODEV;
7597
7598         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
7599                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
7600                 /* check for menlo minimum sg count */
7601                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
7602                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
7603         }
7604
7605         if (!phba->sli.sli3_ring)
7606                 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
7607                                               sizeof(struct lpfc_sli_ring),
7608                                               GFP_KERNEL);
7609         if (!phba->sli.sli3_ring)
7610                 return -ENOMEM;
7611
7612         /*
7613          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
7614          * used to create the sg_dma_buf_pool must be dynamically calculated.
7615          */
7616
7617         if (phba->sli_rev == LPFC_SLI_REV4)
7618                 entry_sz = sizeof(struct sli4_sge);
7619         else
7620                 entry_sz = sizeof(struct ulp_bde64);
7621
7622         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
7623         if (phba->cfg_enable_bg) {
7624                 /*
7625                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
7626                  * the FCP rsp, and a BDE for each. Sice we have no control
7627                  * over how many protection data segments the SCSI Layer
7628                  * will hand us (ie: there could be one for every block
7629                  * in the IO), we just allocate enough BDEs to accomidate
7630                  * our max amount and we need to limit lpfc_sg_seg_cnt to
7631                  * minimize the risk of running out.
7632                  */
7633                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
7634                         sizeof(struct fcp_rsp) +
7635                         (LPFC_MAX_SG_SEG_CNT * entry_sz);
7636
7637                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
7638                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
7639
7640                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
7641                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
7642         } else {
7643                 /*
7644                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
7645                  * the FCP rsp, a BDE for each, and a BDE for up to
7646                  * cfg_sg_seg_cnt data segments.
7647                  */
7648                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
7649                         sizeof(struct fcp_rsp) +
7650                         ((phba->cfg_sg_seg_cnt + 2) * entry_sz);
7651
7652                 /* Total BDEs in BPL for scsi_sg_list */
7653                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
7654         }
7655
7656         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
7657                         "9088 INIT sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
7658                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
7659                         phba->cfg_total_seg_cnt);
7660
7661         phba->max_vpi = LPFC_MAX_VPI;
7662         /* This will be set to correct value after config_port mbox */
7663         phba->max_vports = 0;
7664
7665         /*
7666          * Initialize the SLI Layer to run with lpfc HBAs.
7667          */
7668         lpfc_sli_setup(phba);
7669         lpfc_sli_queue_init(phba);
7670
7671         /* Allocate device driver memory */
7672         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
7673                 return -ENOMEM;
7674
7675         phba->lpfc_sg_dma_buf_pool =
7676                 dma_pool_create("lpfc_sg_dma_buf_pool",
7677                                 &phba->pcidev->dev, phba->cfg_sg_dma_buf_size,
7678                                 BPL_ALIGN_SZ, 0);
7679
7680         if (!phba->lpfc_sg_dma_buf_pool)
7681                 goto fail_free_mem;
7682
7683         phba->lpfc_cmd_rsp_buf_pool =
7684                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
7685                                         &phba->pcidev->dev,
7686                                         sizeof(struct fcp_cmnd) +
7687                                         sizeof(struct fcp_rsp),
7688                                         BPL_ALIGN_SZ, 0);
7689
7690         if (!phba->lpfc_cmd_rsp_buf_pool)
7691                 goto fail_free_dma_buf_pool;
7692
7693         /*
7694          * Enable sr-iov virtual functions if supported and configured
7695          * through the module parameter.
7696          */
7697         if (phba->cfg_sriov_nr_virtfn > 0) {
7698                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
7699                                                  phba->cfg_sriov_nr_virtfn);
7700                 if (rc) {
7701                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7702                                         "2808 Requested number of SR-IOV "
7703                                         "virtual functions (%d) is not "
7704                                         "supported\n",
7705                                         phba->cfg_sriov_nr_virtfn);
7706                         phba->cfg_sriov_nr_virtfn = 0;
7707                 }
7708         }
7709
7710         return 0;
7711
7712 fail_free_dma_buf_pool:
7713         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
7714         phba->lpfc_sg_dma_buf_pool = NULL;
7715 fail_free_mem:
7716         lpfc_mem_free(phba);
7717         return -ENOMEM;
7718 }
7719
7720 /**
7721  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
7722  * @phba: pointer to lpfc hba data structure.
7723  *
7724  * This routine is invoked to unset the driver internal resources set up
7725  * specific for supporting the SLI-3 HBA device it attached to.
7726  **/
7727 static void
7728 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
7729 {
7730         /* Free device driver memory allocated */
7731         lpfc_mem_free_all(phba);
7732
7733         return;
7734 }
7735
7736 /**
7737  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
7738  * @phba: pointer to lpfc hba data structure.
7739  *
7740  * This routine is invoked to set up the driver internal resources specific to
7741  * support the SLI-4 HBA device it attached to.
7742  *
7743  * Return codes
7744  *      0 - successful
7745  *      other values - error
7746  **/
7747 static int
7748 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
7749 {
7750         LPFC_MBOXQ_t *mboxq;
7751         MAILBOX_t *mb;
7752         int rc, i, max_buf_size;
7753         int longs;
7754         int extra;
7755         uint64_t wwn;
7756         u32 if_type;
7757         u32 if_fam;
7758
7759         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7760         phba->sli4_hba.num_possible_cpu = cpumask_last(cpu_possible_mask) + 1;
7761         phba->sli4_hba.curr_disp_cpu = 0;
7762
7763         /* Get all the module params for configuring this host */
7764         lpfc_get_cfgparam(phba);
7765
7766         /* Set up phase-1 common device driver resources */
7767         rc = lpfc_setup_driver_resource_phase1(phba);
7768         if (rc)
7769                 return -ENODEV;
7770
7771         /* Before proceed, wait for POST done and device ready */
7772         rc = lpfc_sli4_post_status_check(phba);
7773         if (rc)
7774                 return -ENODEV;
7775
7776         /* Allocate all driver workqueues here */
7777
7778         /* The lpfc_wq workqueue for deferred irq use */
7779         phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
7780
7781         /*
7782          * Initialize timers used by driver
7783          */
7784
7785         timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
7786
7787         /* FCF rediscover timer */
7788         timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
7789
7790         /* CMF congestion timer */
7791         hrtimer_init(&phba->cmf_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
7792         phba->cmf_timer.function = lpfc_cmf_timer;
7793
7794         /*
7795          * Control structure for handling external multi-buffer mailbox
7796          * command pass-through.
7797          */
7798         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
7799                 sizeof(struct lpfc_mbox_ext_buf_ctx));
7800         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
7801
7802         phba->max_vpi = LPFC_MAX_VPI;
7803
7804         /* This will be set to correct value after the read_config mbox */
7805         phba->max_vports = 0;
7806
7807         /* Program the default value of vlan_id and fc_map */
7808         phba->valid_vlan = 0;
7809         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
7810         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
7811         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
7812
7813         /*
7814          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
7815          * we will associate a new ring, for each EQ/CQ/WQ tuple.
7816          * The WQ create will allocate the ring.
7817          */
7818
7819         /* Initialize buffer queue management fields */
7820         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
7821         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
7822         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
7823
7824         /* for VMID idle timeout if VMID is enabled */
7825         if (lpfc_is_vmid_enabled(phba))
7826                 timer_setup(&phba->inactive_vmid_poll, lpfc_vmid_poll, 0);
7827
7828         /*
7829          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
7830          */
7831         /* Initialize the Abort buffer list used by driver */
7832         spin_lock_init(&phba->sli4_hba.abts_io_buf_list_lock);
7833         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_io_buf_list);
7834
7835         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
7836                 /* Initialize the Abort nvme buffer list used by driver */
7837                 spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
7838                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
7839                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
7840                 spin_lock_init(&phba->sli4_hba.t_active_list_lock);
7841                 INIT_LIST_HEAD(&phba->sli4_hba.t_active_ctx_list);
7842         }
7843
7844         /* This abort list used by worker thread */
7845         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
7846         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
7847         spin_lock_init(&phba->sli4_hba.asynce_list_lock);
7848         spin_lock_init(&phba->sli4_hba.els_xri_abrt_list_lock);
7849
7850         /*
7851          * Initialize driver internal slow-path work queues
7852          */
7853
7854         /* Driver internel slow-path CQ Event pool */
7855         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
7856         /* Response IOCB work queue list */
7857         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
7858         /* Asynchronous event CQ Event work queue list */
7859         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
7860         /* Slow-path XRI aborted CQ Event work queue list */
7861         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
7862         /* Receive queue CQ Event work queue list */
7863         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
7864
7865         /* Initialize extent block lists. */
7866         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
7867         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
7868         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
7869         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
7870
7871         /* Initialize mboxq lists. If the early init routines fail
7872          * these lists need to be correctly initialized.
7873          */
7874         INIT_LIST_HEAD(&phba->sli.mboxq);
7875         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
7876
7877         /* initialize optic_state to 0xFF */
7878         phba->sli4_hba.lnk_info.optic_state = 0xff;
7879
7880         /* Allocate device driver memory */
7881         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
7882         if (rc)
7883                 return -ENOMEM;
7884
7885         /* IF Type 2 ports get initialized now. */
7886         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
7887             LPFC_SLI_INTF_IF_TYPE_2) {
7888                 rc = lpfc_pci_function_reset(phba);
7889                 if (unlikely(rc)) {
7890                         rc = -ENODEV;
7891                         goto out_free_mem;
7892                 }
7893                 phba->temp_sensor_support = 1;
7894         }
7895
7896         /* Create the bootstrap mailbox command */
7897         rc = lpfc_create_bootstrap_mbox(phba);
7898         if (unlikely(rc))
7899                 goto out_free_mem;
7900
7901         /* Set up the host's endian order with the device. */
7902         rc = lpfc_setup_endian_order(phba);
7903         if (unlikely(rc))
7904                 goto out_free_bsmbx;
7905
7906         /* Set up the hba's configuration parameters. */
7907         rc = lpfc_sli4_read_config(phba);
7908         if (unlikely(rc))
7909                 goto out_free_bsmbx;
7910         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
7911         if (unlikely(rc))
7912                 goto out_free_bsmbx;
7913
7914         /* IF Type 0 ports get initialized now. */
7915         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
7916             LPFC_SLI_INTF_IF_TYPE_0) {
7917                 rc = lpfc_pci_function_reset(phba);
7918                 if (unlikely(rc))
7919                         goto out_free_bsmbx;
7920         }
7921
7922         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7923                                                        GFP_KERNEL);
7924         if (!mboxq) {
7925                 rc = -ENOMEM;
7926                 goto out_free_bsmbx;
7927         }
7928
7929         /* Check for NVMET being configured */
7930         phba->nvmet_support = 0;
7931         if (lpfc_enable_nvmet_cnt) {
7932
7933                 /* First get WWN of HBA instance */
7934                 lpfc_read_nv(phba, mboxq);
7935                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7936                 if (rc != MBX_SUCCESS) {
7937                         lpfc_printf_log(phba, KERN_ERR,
7938                                         LOG_TRACE_EVENT,
7939                                         "6016 Mailbox failed , mbxCmd x%x "
7940                                         "READ_NV, mbxStatus x%x\n",
7941                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
7942                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
7943                         mempool_free(mboxq, phba->mbox_mem_pool);
7944                         rc = -EIO;
7945                         goto out_free_bsmbx;
7946                 }
7947                 mb = &mboxq->u.mb;
7948                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
7949                        sizeof(uint64_t));
7950                 wwn = cpu_to_be64(wwn);
7951                 phba->sli4_hba.wwnn.u.name = wwn;
7952                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
7953                        sizeof(uint64_t));
7954                 /* wwn is WWPN of HBA instance */
7955                 wwn = cpu_to_be64(wwn);
7956                 phba->sli4_hba.wwpn.u.name = wwn;
7957
7958                 /* Check to see if it matches any module parameter */
7959                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
7960                         if (wwn == lpfc_enable_nvmet[i]) {
7961 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
7962                                 if (lpfc_nvmet_mem_alloc(phba))
7963                                         break;
7964
7965                                 phba->nvmet_support = 1; /* a match */
7966
7967                                 lpfc_printf_log(phba, KERN_ERR,
7968                                                 LOG_TRACE_EVENT,
7969                                                 "6017 NVME Target %016llx\n",
7970                                                 wwn);
7971 #else
7972                                 lpfc_printf_log(phba, KERN_ERR,
7973                                                 LOG_TRACE_EVENT,
7974                                                 "6021 Can't enable NVME Target."
7975                                                 " NVME_TARGET_FC infrastructure"
7976                                                 " is not in kernel\n");
7977 #endif
7978                                 /* Not supported for NVMET */
7979                                 phba->cfg_xri_rebalancing = 0;
7980                                 if (phba->irq_chann_mode == NHT_MODE) {
7981                                         phba->cfg_irq_chann =
7982                                                 phba->sli4_hba.num_present_cpu;
7983                                         phba->cfg_hdw_queue =
7984                                                 phba->sli4_hba.num_present_cpu;
7985                                         phba->irq_chann_mode = NORMAL_MODE;
7986                                 }
7987                                 break;
7988                         }
7989                 }
7990         }
7991
7992         lpfc_nvme_mod_param_dep(phba);
7993
7994         /*
7995          * Get sli4 parameters that override parameters from Port capabilities.
7996          * If this call fails, it isn't critical unless the SLI4 parameters come
7997          * back in conflict.
7998          */
7999         rc = lpfc_get_sli4_parameters(phba, mboxq);
8000         if (rc) {
8001                 if_type = bf_get(lpfc_sli_intf_if_type,
8002                                  &phba->sli4_hba.sli_intf);
8003                 if_fam = bf_get(lpfc_sli_intf_sli_family,
8004                                 &phba->sli4_hba.sli_intf);
8005                 if (phba->sli4_hba.extents_in_use &&
8006                     phba->sli4_hba.rpi_hdrs_in_use) {
8007                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8008                                         "2999 Unsupported SLI4 Parameters "
8009                                         "Extents and RPI headers enabled.\n");
8010                         if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
8011                             if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
8012                                 mempool_free(mboxq, phba->mbox_mem_pool);
8013                                 rc = -EIO;
8014                                 goto out_free_bsmbx;
8015                         }
8016                 }
8017                 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
8018                       if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
8019                         mempool_free(mboxq, phba->mbox_mem_pool);
8020                         rc = -EIO;
8021                         goto out_free_bsmbx;
8022                 }
8023         }
8024
8025         /*
8026          * 1 for cmd, 1 for rsp, NVME adds an extra one
8027          * for boundary conditions in its max_sgl_segment template.
8028          */
8029         extra = 2;
8030         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
8031                 extra++;
8032
8033         /*
8034          * It doesn't matter what family our adapter is in, we are
8035          * limited to 2 Pages, 512 SGEs, for our SGL.
8036          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
8037          */
8038         max_buf_size = (2 * SLI4_PAGE_SIZE);
8039
8040         /*
8041          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
8042          * used to create the sg_dma_buf_pool must be calculated.
8043          */
8044         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
8045                 /* Both cfg_enable_bg and cfg_external_dif code paths */
8046
8047                 /*
8048                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
8049                  * the FCP rsp, and a SGE. Sice we have no control
8050                  * over how many protection segments the SCSI Layer
8051                  * will hand us (ie: there could be one for every block
8052                  * in the IO), just allocate enough SGEs to accomidate
8053                  * our max amount and we need to limit lpfc_sg_seg_cnt
8054                  * to minimize the risk of running out.
8055                  */
8056                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
8057                                 sizeof(struct fcp_rsp) + max_buf_size;
8058
8059                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
8060                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
8061
8062                 /*
8063                  * If supporting DIF, reduce the seg count for scsi to
8064                  * allow room for the DIF sges.
8065                  */
8066                 if (phba->cfg_enable_bg &&
8067                     phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
8068                         phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
8069                 else
8070                         phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
8071
8072         } else {
8073                 /*
8074                  * The scsi_buf for a regular I/O holds the FCP cmnd,
8075                  * the FCP rsp, a SGE for each, and a SGE for up to
8076                  * cfg_sg_seg_cnt data segments.
8077                  */
8078                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
8079                                 sizeof(struct fcp_rsp) +
8080                                 ((phba->cfg_sg_seg_cnt + extra) *
8081                                 sizeof(struct sli4_sge));
8082
8083                 /* Total SGEs for scsi_sg_list */
8084                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
8085                 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
8086
8087                 /*
8088                  * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
8089                  * need to post 1 page for the SGL.
8090                  */
8091         }
8092
8093         if (phba->cfg_xpsgl && !phba->nvmet_support)
8094                 phba->cfg_sg_dma_buf_size = LPFC_DEFAULT_XPSGL_SIZE;
8095         else if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
8096                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
8097         else
8098                 phba->cfg_sg_dma_buf_size =
8099                                 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
8100
8101         phba->border_sge_num = phba->cfg_sg_dma_buf_size /
8102                                sizeof(struct sli4_sge);
8103
8104         /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
8105         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8106                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
8107                         lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
8108                                         "6300 Reducing NVME sg segment "
8109                                         "cnt to %d\n",
8110                                         LPFC_MAX_NVME_SEG_CNT);
8111                         phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
8112                 } else
8113                         phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
8114         }
8115
8116         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
8117                         "9087 sg_seg_cnt:%d dmabuf_size:%d "
8118                         "total:%d scsi:%d nvme:%d\n",
8119                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
8120                         phba->cfg_total_seg_cnt,  phba->cfg_scsi_seg_cnt,
8121                         phba->cfg_nvme_seg_cnt);
8122
8123         if (phba->cfg_sg_dma_buf_size < SLI4_PAGE_SIZE)
8124                 i = phba->cfg_sg_dma_buf_size;
8125         else
8126                 i = SLI4_PAGE_SIZE;
8127
8128         phba->lpfc_sg_dma_buf_pool =
8129                         dma_pool_create("lpfc_sg_dma_buf_pool",
8130                                         &phba->pcidev->dev,
8131                                         phba->cfg_sg_dma_buf_size,
8132                                         i, 0);
8133         if (!phba->lpfc_sg_dma_buf_pool)
8134                 goto out_free_bsmbx;
8135
8136         phba->lpfc_cmd_rsp_buf_pool =
8137                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
8138                                         &phba->pcidev->dev,
8139                                         sizeof(struct fcp_cmnd) +
8140                                         sizeof(struct fcp_rsp),
8141                                         i, 0);
8142         if (!phba->lpfc_cmd_rsp_buf_pool)
8143                 goto out_free_sg_dma_buf;
8144
8145         mempool_free(mboxq, phba->mbox_mem_pool);
8146
8147         /* Verify OAS is supported */
8148         lpfc_sli4_oas_verify(phba);
8149
8150         /* Verify RAS support on adapter */
8151         lpfc_sli4_ras_init(phba);
8152
8153         /* Verify all the SLI4 queues */
8154         rc = lpfc_sli4_queue_verify(phba);
8155         if (rc)
8156                 goto out_free_cmd_rsp_buf;
8157
8158         /* Create driver internal CQE event pool */
8159         rc = lpfc_sli4_cq_event_pool_create(phba);
8160         if (rc)
8161                 goto out_free_cmd_rsp_buf;
8162
8163         /* Initialize sgl lists per host */
8164         lpfc_init_sgl_list(phba);
8165
8166         /* Allocate and initialize active sgl array */
8167         rc = lpfc_init_active_sgl_array(phba);
8168         if (rc) {
8169                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8170                                 "1430 Failed to initialize sgl list.\n");
8171                 goto out_destroy_cq_event_pool;
8172         }
8173         rc = lpfc_sli4_init_rpi_hdrs(phba);
8174         if (rc) {
8175                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8176                                 "1432 Failed to initialize rpi headers.\n");
8177                 goto out_free_active_sgl;
8178         }
8179
8180         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
8181         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
8182         phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
8183                                          GFP_KERNEL);
8184         if (!phba->fcf.fcf_rr_bmask) {
8185                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8186                                 "2759 Failed allocate memory for FCF round "
8187                                 "robin failover bmask\n");
8188                 rc = -ENOMEM;
8189                 goto out_remove_rpi_hdrs;
8190         }
8191
8192         phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann,
8193                                             sizeof(struct lpfc_hba_eq_hdl),
8194                                             GFP_KERNEL);
8195         if (!phba->sli4_hba.hba_eq_hdl) {
8196                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8197                                 "2572 Failed allocate memory for "
8198                                 "fast-path per-EQ handle array\n");
8199                 rc = -ENOMEM;
8200                 goto out_free_fcf_rr_bmask;
8201         }
8202
8203         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu,
8204                                         sizeof(struct lpfc_vector_map_info),
8205                                         GFP_KERNEL);
8206         if (!phba->sli4_hba.cpu_map) {
8207                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8208                                 "3327 Failed allocate memory for msi-x "
8209                                 "interrupt vector mapping\n");
8210                 rc = -ENOMEM;
8211                 goto out_free_hba_eq_hdl;
8212         }
8213
8214         phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
8215         if (!phba->sli4_hba.eq_info) {
8216                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8217                                 "3321 Failed allocation for per_cpu stats\n");
8218                 rc = -ENOMEM;
8219                 goto out_free_hba_cpu_map;
8220         }
8221
8222         phba->sli4_hba.idle_stat = kcalloc(phba->sli4_hba.num_possible_cpu,
8223                                            sizeof(*phba->sli4_hba.idle_stat),
8224                                            GFP_KERNEL);
8225         if (!phba->sli4_hba.idle_stat) {
8226                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8227                                 "3390 Failed allocation for idle_stat\n");
8228                 rc = -ENOMEM;
8229                 goto out_free_hba_eq_info;
8230         }
8231
8232 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8233         phba->sli4_hba.c_stat = alloc_percpu(struct lpfc_hdwq_stat);
8234         if (!phba->sli4_hba.c_stat) {
8235                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8236                                 "3332 Failed allocating per cpu hdwq stats\n");
8237                 rc = -ENOMEM;
8238                 goto out_free_hba_idle_stat;
8239         }
8240 #endif
8241
8242         phba->cmf_stat = alloc_percpu(struct lpfc_cgn_stat);
8243         if (!phba->cmf_stat) {
8244                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8245                                 "3331 Failed allocating per cpu cgn stats\n");
8246                 rc = -ENOMEM;
8247                 goto out_free_hba_hdwq_info;
8248         }
8249
8250         /*
8251          * Enable sr-iov virtual functions if supported and configured
8252          * through the module parameter.
8253          */
8254         if (phba->cfg_sriov_nr_virtfn > 0) {
8255                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
8256                                                  phba->cfg_sriov_nr_virtfn);
8257                 if (rc) {
8258                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8259                                         "3020 Requested number of SR-IOV "
8260                                         "virtual functions (%d) is not "
8261                                         "supported\n",
8262                                         phba->cfg_sriov_nr_virtfn);
8263                         phba->cfg_sriov_nr_virtfn = 0;
8264                 }
8265         }
8266
8267         return 0;
8268
8269 out_free_hba_hdwq_info:
8270 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8271         free_percpu(phba->sli4_hba.c_stat);
8272 out_free_hba_idle_stat:
8273 #endif
8274         kfree(phba->sli4_hba.idle_stat);
8275 out_free_hba_eq_info:
8276         free_percpu(phba->sli4_hba.eq_info);
8277 out_free_hba_cpu_map:
8278         kfree(phba->sli4_hba.cpu_map);
8279 out_free_hba_eq_hdl:
8280         kfree(phba->sli4_hba.hba_eq_hdl);
8281 out_free_fcf_rr_bmask:
8282         kfree(phba->fcf.fcf_rr_bmask);
8283 out_remove_rpi_hdrs:
8284         lpfc_sli4_remove_rpi_hdrs(phba);
8285 out_free_active_sgl:
8286         lpfc_free_active_sgl(phba);
8287 out_destroy_cq_event_pool:
8288         lpfc_sli4_cq_event_pool_destroy(phba);
8289 out_free_cmd_rsp_buf:
8290         dma_pool_destroy(phba->lpfc_cmd_rsp_buf_pool);
8291         phba->lpfc_cmd_rsp_buf_pool = NULL;
8292 out_free_sg_dma_buf:
8293         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
8294         phba->lpfc_sg_dma_buf_pool = NULL;
8295 out_free_bsmbx:
8296         lpfc_destroy_bootstrap_mbox(phba);
8297 out_free_mem:
8298         lpfc_mem_free(phba);
8299         return rc;
8300 }
8301
8302 /**
8303  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
8304  * @phba: pointer to lpfc hba data structure.
8305  *
8306  * This routine is invoked to unset the driver internal resources set up
8307  * specific for supporting the SLI-4 HBA device it attached to.
8308  **/
8309 static void
8310 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
8311 {
8312         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
8313
8314         free_percpu(phba->sli4_hba.eq_info);
8315 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8316         free_percpu(phba->sli4_hba.c_stat);
8317 #endif
8318         free_percpu(phba->cmf_stat);
8319         kfree(phba->sli4_hba.idle_stat);
8320
8321         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
8322         kfree(phba->sli4_hba.cpu_map);
8323         phba->sli4_hba.num_possible_cpu = 0;
8324         phba->sli4_hba.num_present_cpu = 0;
8325         phba->sli4_hba.curr_disp_cpu = 0;
8326         cpumask_clear(&phba->sli4_hba.irq_aff_mask);
8327
8328         /* Free memory allocated for fast-path work queue handles */
8329         kfree(phba->sli4_hba.hba_eq_hdl);
8330
8331         /* Free the allocated rpi headers. */
8332         lpfc_sli4_remove_rpi_hdrs(phba);
8333         lpfc_sli4_remove_rpis(phba);
8334
8335         /* Free eligible FCF index bmask */
8336         kfree(phba->fcf.fcf_rr_bmask);
8337
8338         /* Free the ELS sgl list */
8339         lpfc_free_active_sgl(phba);
8340         lpfc_free_els_sgl_list(phba);
8341         lpfc_free_nvmet_sgl_list(phba);
8342
8343         /* Free the completion queue EQ event pool */
8344         lpfc_sli4_cq_event_release_all(phba);
8345         lpfc_sli4_cq_event_pool_destroy(phba);
8346
8347         /* Release resource identifiers. */
8348         lpfc_sli4_dealloc_resource_identifiers(phba);
8349
8350         /* Free the bsmbx region. */
8351         lpfc_destroy_bootstrap_mbox(phba);
8352
8353         /* Free the SLI Layer memory with SLI4 HBAs */
8354         lpfc_mem_free_all(phba);
8355
8356         /* Free the current connect table */
8357         list_for_each_entry_safe(conn_entry, next_conn_entry,
8358                 &phba->fcf_conn_rec_list, list) {
8359                 list_del_init(&conn_entry->list);
8360                 kfree(conn_entry);
8361         }
8362
8363         return;
8364 }
8365
8366 /**
8367  * lpfc_init_api_table_setup - Set up init api function jump table
8368  * @phba: The hba struct for which this call is being executed.
8369  * @dev_grp: The HBA PCI-Device group number.
8370  *
8371  * This routine sets up the device INIT interface API function jump table
8372  * in @phba struct.
8373  *
8374  * Returns: 0 - success, -ENODEV - failure.
8375  **/
8376 int
8377 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8378 {
8379         phba->lpfc_hba_init_link = lpfc_hba_init_link;
8380         phba->lpfc_hba_down_link = lpfc_hba_down_link;
8381         phba->lpfc_selective_reset = lpfc_selective_reset;
8382         switch (dev_grp) {
8383         case LPFC_PCI_DEV_LP:
8384                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
8385                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
8386                 phba->lpfc_stop_port = lpfc_stop_port_s3;
8387                 break;
8388         case LPFC_PCI_DEV_OC:
8389                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
8390                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
8391                 phba->lpfc_stop_port = lpfc_stop_port_s4;
8392                 break;
8393         default:
8394                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8395                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
8396                                 dev_grp);
8397                 return -ENODEV;
8398         }
8399         return 0;
8400 }
8401
8402 /**
8403  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
8404  * @phba: pointer to lpfc hba data structure.
8405  *
8406  * This routine is invoked to set up the driver internal resources after the
8407  * device specific resource setup to support the HBA device it attached to.
8408  *
8409  * Return codes
8410  *      0 - successful
8411  *      other values - error
8412  **/
8413 static int
8414 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
8415 {
8416         int error;
8417
8418         /* Startup the kernel thread for this host adapter. */
8419         phba->worker_thread = kthread_run(lpfc_do_work, phba,
8420                                           "lpfc_worker_%d", phba->brd_no);
8421         if (IS_ERR(phba->worker_thread)) {
8422                 error = PTR_ERR(phba->worker_thread);
8423                 return error;
8424         }
8425
8426         return 0;
8427 }
8428
8429 /**
8430  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
8431  * @phba: pointer to lpfc hba data structure.
8432  *
8433  * This routine is invoked to unset the driver internal resources set up after
8434  * the device specific resource setup for supporting the HBA device it
8435  * attached to.
8436  **/
8437 static void
8438 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
8439 {
8440         if (phba->wq) {
8441                 flush_workqueue(phba->wq);
8442                 destroy_workqueue(phba->wq);
8443                 phba->wq = NULL;
8444         }
8445
8446         /* Stop kernel worker thread */
8447         if (phba->worker_thread)
8448                 kthread_stop(phba->worker_thread);
8449 }
8450
8451 /**
8452  * lpfc_free_iocb_list - Free iocb list.
8453  * @phba: pointer to lpfc hba data structure.
8454  *
8455  * This routine is invoked to free the driver's IOCB list and memory.
8456  **/
8457 void
8458 lpfc_free_iocb_list(struct lpfc_hba *phba)
8459 {
8460         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
8461
8462         spin_lock_irq(&phba->hbalock);
8463         list_for_each_entry_safe(iocbq_entry, iocbq_next,
8464                                  &phba->lpfc_iocb_list, list) {
8465                 list_del(&iocbq_entry->list);
8466                 kfree(iocbq_entry);
8467                 phba->total_iocbq_bufs--;
8468         }
8469         spin_unlock_irq(&phba->hbalock);
8470
8471         return;
8472 }
8473
8474 /**
8475  * lpfc_init_iocb_list - Allocate and initialize iocb list.
8476  * @phba: pointer to lpfc hba data structure.
8477  * @iocb_count: number of requested iocbs
8478  *
8479  * This routine is invoked to allocate and initizlize the driver's IOCB
8480  * list and set up the IOCB tag array accordingly.
8481  *
8482  * Return codes
8483  *      0 - successful
8484  *      other values - error
8485  **/
8486 int
8487 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
8488 {
8489         struct lpfc_iocbq *iocbq_entry = NULL;
8490         uint16_t iotag;
8491         int i;
8492
8493         /* Initialize and populate the iocb list per host.  */
8494         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
8495         for (i = 0; i < iocb_count; i++) {
8496                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
8497                 if (iocbq_entry == NULL) {
8498                         printk(KERN_ERR "%s: only allocated %d iocbs of "
8499                                 "expected %d count. Unloading driver.\n",
8500                                 __func__, i, iocb_count);
8501                         goto out_free_iocbq;
8502                 }
8503
8504                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
8505                 if (iotag == 0) {
8506                         kfree(iocbq_entry);
8507                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
8508                                 "Unloading driver.\n", __func__);
8509                         goto out_free_iocbq;
8510                 }
8511                 iocbq_entry->sli4_lxritag = NO_XRI;
8512                 iocbq_entry->sli4_xritag = NO_XRI;
8513
8514                 spin_lock_irq(&phba->hbalock);
8515                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
8516                 phba->total_iocbq_bufs++;
8517                 spin_unlock_irq(&phba->hbalock);
8518         }
8519
8520         return 0;
8521
8522 out_free_iocbq:
8523         lpfc_free_iocb_list(phba);
8524
8525         return -ENOMEM;
8526 }
8527
8528 /**
8529  * lpfc_free_sgl_list - Free a given sgl list.
8530  * @phba: pointer to lpfc hba data structure.
8531  * @sglq_list: pointer to the head of sgl list.
8532  *
8533  * This routine is invoked to free a give sgl list and memory.
8534  **/
8535 void
8536 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
8537 {
8538         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8539
8540         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
8541                 list_del(&sglq_entry->list);
8542                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
8543                 kfree(sglq_entry);
8544         }
8545 }
8546
8547 /**
8548  * lpfc_free_els_sgl_list - Free els sgl list.
8549  * @phba: pointer to lpfc hba data structure.
8550  *
8551  * This routine is invoked to free the driver's els sgl list and memory.
8552  **/
8553 static void
8554 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
8555 {
8556         LIST_HEAD(sglq_list);
8557
8558         /* Retrieve all els sgls from driver list */
8559         spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
8560         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
8561         spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
8562
8563         /* Now free the sgl list */
8564         lpfc_free_sgl_list(phba, &sglq_list);
8565 }
8566
8567 /**
8568  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
8569  * @phba: pointer to lpfc hba data structure.
8570  *
8571  * This routine is invoked to free the driver's nvmet sgl list and memory.
8572  **/
8573 static void
8574 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
8575 {
8576         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8577         LIST_HEAD(sglq_list);
8578
8579         /* Retrieve all nvmet sgls from driver list */
8580         spin_lock_irq(&phba->hbalock);
8581         spin_lock(&phba->sli4_hba.sgl_list_lock);
8582         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
8583         spin_unlock(&phba->sli4_hba.sgl_list_lock);
8584         spin_unlock_irq(&phba->hbalock);
8585
8586         /* Now free the sgl list */
8587         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
8588                 list_del(&sglq_entry->list);
8589                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
8590                 kfree(sglq_entry);
8591         }
8592
8593         /* Update the nvmet_xri_cnt to reflect no current sgls.
8594          * The next initialization cycle sets the count and allocates
8595          * the sgls over again.
8596          */
8597         phba->sli4_hba.nvmet_xri_cnt = 0;
8598 }
8599
8600 /**
8601  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
8602  * @phba: pointer to lpfc hba data structure.
8603  *
8604  * This routine is invoked to allocate the driver's active sgl memory.
8605  * This array will hold the sglq_entry's for active IOs.
8606  **/
8607 static int
8608 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
8609 {
8610         int size;
8611         size = sizeof(struct lpfc_sglq *);
8612         size *= phba->sli4_hba.max_cfg_param.max_xri;
8613
8614         phba->sli4_hba.lpfc_sglq_active_list =
8615                 kzalloc(size, GFP_KERNEL);
8616         if (!phba->sli4_hba.lpfc_sglq_active_list)
8617                 return -ENOMEM;
8618         return 0;
8619 }
8620
8621 /**
8622  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
8623  * @phba: pointer to lpfc hba data structure.
8624  *
8625  * This routine is invoked to walk through the array of active sglq entries
8626  * and free all of the resources.
8627  * This is just a place holder for now.
8628  **/
8629 static void
8630 lpfc_free_active_sgl(struct lpfc_hba *phba)
8631 {
8632         kfree(phba->sli4_hba.lpfc_sglq_active_list);
8633 }
8634
8635 /**
8636  * lpfc_init_sgl_list - Allocate and initialize sgl list.
8637  * @phba: pointer to lpfc hba data structure.
8638  *
8639  * This routine is invoked to allocate and initizlize the driver's sgl
8640  * list and set up the sgl xritag tag array accordingly.
8641  *
8642  **/
8643 static void
8644 lpfc_init_sgl_list(struct lpfc_hba *phba)
8645 {
8646         /* Initialize and populate the sglq list per host/VF. */
8647         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
8648         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8649         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
8650         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
8651
8652         /* els xri-sgl book keeping */
8653         phba->sli4_hba.els_xri_cnt = 0;
8654
8655         /* nvme xri-buffer book keeping */
8656         phba->sli4_hba.io_xri_cnt = 0;
8657 }
8658
8659 /**
8660  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
8661  * @phba: pointer to lpfc hba data structure.
8662  *
8663  * This routine is invoked to post rpi header templates to the
8664  * port for those SLI4 ports that do not support extents.  This routine
8665  * posts a PAGE_SIZE memory region to the port to hold up to
8666  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
8667  * and should be called only when interrupts are disabled.
8668  *
8669  * Return codes
8670  *      0 - successful
8671  *      -ERROR - otherwise.
8672  **/
8673 int
8674 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
8675 {
8676         int rc = 0;
8677         struct lpfc_rpi_hdr *rpi_hdr;
8678
8679         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
8680         if (!phba->sli4_hba.rpi_hdrs_in_use)
8681                 return rc;
8682         if (phba->sli4_hba.extents_in_use)
8683                 return -EIO;
8684
8685         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
8686         if (!rpi_hdr) {
8687                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8688                                 "0391 Error during rpi post operation\n");
8689                 lpfc_sli4_remove_rpis(phba);
8690                 rc = -ENODEV;
8691         }
8692
8693         return rc;
8694 }
8695
8696 /**
8697  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
8698  * @phba: pointer to lpfc hba data structure.
8699  *
8700  * This routine is invoked to allocate a single 4KB memory region to
8701  * support rpis and stores them in the phba.  This single region
8702  * provides support for up to 64 rpis.  The region is used globally
8703  * by the device.
8704  *
8705  * Returns:
8706  *   A valid rpi hdr on success.
8707  *   A NULL pointer on any failure.
8708  **/
8709 struct lpfc_rpi_hdr *
8710 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
8711 {
8712         uint16_t rpi_limit, curr_rpi_range;
8713         struct lpfc_dmabuf *dmabuf;
8714         struct lpfc_rpi_hdr *rpi_hdr;
8715
8716         /*
8717          * If the SLI4 port supports extents, posting the rpi header isn't
8718          * required.  Set the expected maximum count and let the actual value
8719          * get set when extents are fully allocated.
8720          */
8721         if (!phba->sli4_hba.rpi_hdrs_in_use)
8722                 return NULL;
8723         if (phba->sli4_hba.extents_in_use)
8724                 return NULL;
8725
8726         /* The limit on the logical index is just the max_rpi count. */
8727         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
8728
8729         spin_lock_irq(&phba->hbalock);
8730         /*
8731          * Establish the starting RPI in this header block.  The starting
8732          * rpi is normalized to a zero base because the physical rpi is
8733          * port based.
8734          */
8735         curr_rpi_range = phba->sli4_hba.next_rpi;
8736         spin_unlock_irq(&phba->hbalock);
8737
8738         /* Reached full RPI range */
8739         if (curr_rpi_range == rpi_limit)
8740                 return NULL;
8741
8742         /*
8743          * First allocate the protocol header region for the port.  The
8744          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
8745          */
8746         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
8747         if (!dmabuf)
8748                 return NULL;
8749
8750         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
8751                                           LPFC_HDR_TEMPLATE_SIZE,
8752                                           &dmabuf->phys, GFP_KERNEL);
8753         if (!dmabuf->virt) {
8754                 rpi_hdr = NULL;
8755                 goto err_free_dmabuf;
8756         }
8757
8758         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
8759                 rpi_hdr = NULL;
8760                 goto err_free_coherent;
8761         }
8762
8763         /* Save the rpi header data for cleanup later. */
8764         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
8765         if (!rpi_hdr)
8766                 goto err_free_coherent;
8767
8768         rpi_hdr->dmabuf = dmabuf;
8769         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
8770         rpi_hdr->page_count = 1;
8771         spin_lock_irq(&phba->hbalock);
8772
8773         /* The rpi_hdr stores the logical index only. */
8774         rpi_hdr->start_rpi = curr_rpi_range;
8775         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
8776         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
8777
8778         spin_unlock_irq(&phba->hbalock);
8779         return rpi_hdr;
8780
8781  err_free_coherent:
8782         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
8783                           dmabuf->virt, dmabuf->phys);
8784  err_free_dmabuf:
8785         kfree(dmabuf);
8786         return NULL;
8787 }
8788
8789 /**
8790  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
8791  * @phba: pointer to lpfc hba data structure.
8792  *
8793  * This routine is invoked to remove all memory resources allocated
8794  * to support rpis for SLI4 ports not supporting extents. This routine
8795  * presumes the caller has released all rpis consumed by fabric or port
8796  * logins and is prepared to have the header pages removed.
8797  **/
8798 void
8799 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
8800 {
8801         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
8802
8803         if (!phba->sli4_hba.rpi_hdrs_in_use)
8804                 goto exit;
8805
8806         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
8807                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
8808                 list_del(&rpi_hdr->list);
8809                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
8810                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
8811                 kfree(rpi_hdr->dmabuf);
8812                 kfree(rpi_hdr);
8813         }
8814  exit:
8815         /* There are no rpis available to the port now. */
8816         phba->sli4_hba.next_rpi = 0;
8817 }
8818
8819 /**
8820  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
8821  * @pdev: pointer to pci device data structure.
8822  *
8823  * This routine is invoked to allocate the driver hba data structure for an
8824  * HBA device. If the allocation is successful, the phba reference to the
8825  * PCI device data structure is set.
8826  *
8827  * Return codes
8828  *      pointer to @phba - successful
8829  *      NULL - error
8830  **/
8831 static struct lpfc_hba *
8832 lpfc_hba_alloc(struct pci_dev *pdev)
8833 {
8834         struct lpfc_hba *phba;
8835
8836         /* Allocate memory for HBA structure */
8837         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
8838         if (!phba) {
8839                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
8840                 return NULL;
8841         }
8842
8843         /* Set reference to PCI device in HBA structure */
8844         phba->pcidev = pdev;
8845
8846         /* Assign an unused board number */
8847         phba->brd_no = lpfc_get_instance();
8848         if (phba->brd_no < 0) {
8849                 kfree(phba);
8850                 return NULL;
8851         }
8852         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
8853
8854         spin_lock_init(&phba->ct_ev_lock);
8855         INIT_LIST_HEAD(&phba->ct_ev_waiters);
8856
8857         return phba;
8858 }
8859
8860 /**
8861  * lpfc_hba_free - Free driver hba data structure with a device.
8862  * @phba: pointer to lpfc hba data structure.
8863  *
8864  * This routine is invoked to free the driver hba data structure with an
8865  * HBA device.
8866  **/
8867 static void
8868 lpfc_hba_free(struct lpfc_hba *phba)
8869 {
8870         if (phba->sli_rev == LPFC_SLI_REV4)
8871                 kfree(phba->sli4_hba.hdwq);
8872
8873         /* Release the driver assigned board number */
8874         idr_remove(&lpfc_hba_index, phba->brd_no);
8875
8876         /* Free memory allocated with sli3 rings */
8877         kfree(phba->sli.sli3_ring);
8878         phba->sli.sli3_ring = NULL;
8879
8880         kfree(phba);
8881         return;
8882 }
8883
8884 /**
8885  * lpfc_create_shost - Create hba physical port with associated scsi host.
8886  * @phba: pointer to lpfc hba data structure.
8887  *
8888  * This routine is invoked to create HBA physical port and associate a SCSI
8889  * host with it.
8890  *
8891  * Return codes
8892  *      0 - successful
8893  *      other values - error
8894  **/
8895 static int
8896 lpfc_create_shost(struct lpfc_hba *phba)
8897 {
8898         struct lpfc_vport *vport;
8899         struct Scsi_Host  *shost;
8900
8901         /* Initialize HBA FC structure */
8902         phba->fc_edtov = FF_DEF_EDTOV;
8903         phba->fc_ratov = FF_DEF_RATOV;
8904         phba->fc_altov = FF_DEF_ALTOV;
8905         phba->fc_arbtov = FF_DEF_ARBTOV;
8906
8907         atomic_set(&phba->sdev_cnt, 0);
8908         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
8909         if (!vport)
8910                 return -ENODEV;
8911
8912         shost = lpfc_shost_from_vport(vport);
8913         phba->pport = vport;
8914
8915         if (phba->nvmet_support) {
8916                 /* Only 1 vport (pport) will support NVME target */
8917                 phba->targetport = NULL;
8918                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
8919                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME_DISC,
8920                                 "6076 NVME Target Found\n");
8921         }
8922
8923         lpfc_debugfs_initialize(vport);
8924         /* Put reference to SCSI host to driver's device private data */
8925         pci_set_drvdata(phba->pcidev, shost);
8926
8927         /*
8928          * At this point we are fully registered with PSA. In addition,
8929          * any initial discovery should be completed.
8930          */
8931         vport->load_flag |= FC_ALLOW_FDMI;
8932         if (phba->cfg_enable_SmartSAN ||
8933             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
8934
8935                 /* Setup appropriate attribute masks */
8936                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
8937                 if (phba->cfg_enable_SmartSAN)
8938                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
8939                 else
8940                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
8941         }
8942         return 0;
8943 }
8944
8945 /**
8946  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
8947  * @phba: pointer to lpfc hba data structure.
8948  *
8949  * This routine is invoked to destroy HBA physical port and the associated
8950  * SCSI host.
8951  **/
8952 static void
8953 lpfc_destroy_shost(struct lpfc_hba *phba)
8954 {
8955         struct lpfc_vport *vport = phba->pport;
8956
8957         /* Destroy physical port that associated with the SCSI host */
8958         destroy_port(vport);
8959
8960         return;
8961 }
8962
8963 /**
8964  * lpfc_setup_bg - Setup Block guard structures and debug areas.
8965  * @phba: pointer to lpfc hba data structure.
8966  * @shost: the shost to be used to detect Block guard settings.
8967  *
8968  * This routine sets up the local Block guard protocol settings for @shost.
8969  * This routine also allocates memory for debugging bg buffers.
8970  **/
8971 static void
8972 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
8973 {
8974         uint32_t old_mask;
8975         uint32_t old_guard;
8976
8977         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
8978                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8979                                 "1478 Registering BlockGuard with the "
8980                                 "SCSI layer\n");
8981
8982                 old_mask = phba->cfg_prot_mask;
8983                 old_guard = phba->cfg_prot_guard;
8984
8985                 /* Only allow supported values */
8986                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
8987                         SHOST_DIX_TYPE0_PROTECTION |
8988                         SHOST_DIX_TYPE1_PROTECTION);
8989                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
8990                                          SHOST_DIX_GUARD_CRC);
8991
8992                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
8993                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
8994                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
8995
8996                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
8997                         if ((old_mask != phba->cfg_prot_mask) ||
8998                                 (old_guard != phba->cfg_prot_guard))
8999                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9000                                         "1475 Registering BlockGuard with the "
9001                                         "SCSI layer: mask %d  guard %d\n",
9002                                         phba->cfg_prot_mask,
9003                                         phba->cfg_prot_guard);
9004
9005                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
9006                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
9007                 } else
9008                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9009                                 "1479 Not Registering BlockGuard with the SCSI "
9010                                 "layer, Bad protection parameters: %d %d\n",
9011                                 old_mask, old_guard);
9012         }
9013 }
9014
9015 /**
9016  * lpfc_post_init_setup - Perform necessary device post initialization setup.
9017  * @phba: pointer to lpfc hba data structure.
9018  *
9019  * This routine is invoked to perform all the necessary post initialization
9020  * setup for the device.
9021  **/
9022 static void
9023 lpfc_post_init_setup(struct lpfc_hba *phba)
9024 {
9025         struct Scsi_Host  *shost;
9026         struct lpfc_adapter_event_header adapter_event;
9027
9028         /* Get the default values for Model Name and Description */
9029         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9030
9031         /*
9032          * hba setup may have changed the hba_queue_depth so we need to
9033          * adjust the value of can_queue.
9034          */
9035         shost = pci_get_drvdata(phba->pcidev);
9036         shost->can_queue = phba->cfg_hba_queue_depth - 10;
9037
9038         lpfc_host_attrib_init(shost);
9039
9040         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
9041                 spin_lock_irq(shost->host_lock);
9042                 lpfc_poll_start_timer(phba);
9043                 spin_unlock_irq(shost->host_lock);
9044         }
9045
9046         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9047                         "0428 Perform SCSI scan\n");
9048         /* Send board arrival event to upper layer */
9049         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
9050         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
9051         fc_host_post_vendor_event(shost, fc_get_event_number(),
9052                                   sizeof(adapter_event),
9053                                   (char *) &adapter_event,
9054                                   LPFC_NL_VENDOR_ID);
9055         return;
9056 }
9057
9058 /**
9059  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
9060  * @phba: pointer to lpfc hba data structure.
9061  *
9062  * This routine is invoked to set up the PCI device memory space for device
9063  * with SLI-3 interface spec.
9064  *
9065  * Return codes
9066  *      0 - successful
9067  *      other values - error
9068  **/
9069 static int
9070 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
9071 {
9072         struct pci_dev *pdev = phba->pcidev;
9073         unsigned long bar0map_len, bar2map_len;
9074         int i, hbq_count;
9075         void *ptr;
9076         int error;
9077
9078         if (!pdev)
9079                 return -ENODEV;
9080
9081         /* Set the device DMA mask size */
9082         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
9083         if (error)
9084                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
9085         if (error)
9086                 return error;
9087         error = -ENODEV;
9088
9089         /* Get the bus address of Bar0 and Bar2 and the number of bytes
9090          * required by each mapping.
9091          */
9092         phba->pci_bar0_map = pci_resource_start(pdev, 0);
9093         bar0map_len = pci_resource_len(pdev, 0);
9094
9095         phba->pci_bar2_map = pci_resource_start(pdev, 2);
9096         bar2map_len = pci_resource_len(pdev, 2);
9097
9098         /* Map HBA SLIM to a kernel virtual address. */
9099         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
9100         if (!phba->slim_memmap_p) {
9101                 dev_printk(KERN_ERR, &pdev->dev,
9102                            "ioremap failed for SLIM memory.\n");
9103                 goto out;
9104         }
9105
9106         /* Map HBA Control Registers to a kernel virtual address. */
9107         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
9108         if (!phba->ctrl_regs_memmap_p) {
9109                 dev_printk(KERN_ERR, &pdev->dev,
9110                            "ioremap failed for HBA control registers.\n");
9111                 goto out_iounmap_slim;
9112         }
9113
9114         /* Allocate memory for SLI-2 structures */
9115         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9116                                                &phba->slim2p.phys, GFP_KERNEL);
9117         if (!phba->slim2p.virt)
9118                 goto out_iounmap;
9119
9120         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
9121         phba->mbox_ext = (phba->slim2p.virt +
9122                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
9123         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
9124         phba->IOCBs = (phba->slim2p.virt +
9125                        offsetof(struct lpfc_sli2_slim, IOCBs));
9126
9127         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
9128                                                  lpfc_sli_hbq_size(),
9129                                                  &phba->hbqslimp.phys,
9130                                                  GFP_KERNEL);
9131         if (!phba->hbqslimp.virt)
9132                 goto out_free_slim;
9133
9134         hbq_count = lpfc_sli_hbq_count();
9135         ptr = phba->hbqslimp.virt;
9136         for (i = 0; i < hbq_count; ++i) {
9137                 phba->hbqs[i].hbq_virt = ptr;
9138                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
9139                 ptr += (lpfc_hbq_defs[i]->entry_count *
9140                         sizeof(struct lpfc_hbq_entry));
9141         }
9142         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
9143         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
9144
9145         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
9146
9147         phba->MBslimaddr = phba->slim_memmap_p;
9148         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
9149         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
9150         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
9151         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
9152
9153         return 0;
9154
9155 out_free_slim:
9156         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9157                           phba->slim2p.virt, phba->slim2p.phys);
9158 out_iounmap:
9159         iounmap(phba->ctrl_regs_memmap_p);
9160 out_iounmap_slim:
9161         iounmap(phba->slim_memmap_p);
9162 out:
9163         return error;
9164 }
9165
9166 /**
9167  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
9168  * @phba: pointer to lpfc hba data structure.
9169  *
9170  * This routine is invoked to unset the PCI device memory space for device
9171  * with SLI-3 interface spec.
9172  **/
9173 static void
9174 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
9175 {
9176         struct pci_dev *pdev;
9177
9178         /* Obtain PCI device reference */
9179         if (!phba->pcidev)
9180                 return;
9181         else
9182                 pdev = phba->pcidev;
9183
9184         /* Free coherent DMA memory allocated */
9185         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9186                           phba->hbqslimp.virt, phba->hbqslimp.phys);
9187         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9188                           phba->slim2p.virt, phba->slim2p.phys);
9189
9190         /* I/O memory unmap */
9191         iounmap(phba->ctrl_regs_memmap_p);
9192         iounmap(phba->slim_memmap_p);
9193
9194         return;
9195 }
9196
9197 /**
9198  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
9199  * @phba: pointer to lpfc hba data structure.
9200  *
9201  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
9202  * done and check status.
9203  *
9204  * Return 0 if successful, otherwise -ENODEV.
9205  **/
9206 int
9207 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
9208 {
9209         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
9210         struct lpfc_register reg_data;
9211         int i, port_error = 0;
9212         uint32_t if_type;
9213
9214         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
9215         memset(&reg_data, 0, sizeof(reg_data));
9216         if (!phba->sli4_hba.PSMPHRregaddr)
9217                 return -ENODEV;
9218
9219         /* Wait up to 30 seconds for the SLI Port POST done and ready */
9220         for (i = 0; i < 3000; i++) {
9221                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
9222                         &portsmphr_reg.word0) ||
9223                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
9224                         /* Port has a fatal POST error, break out */
9225                         port_error = -ENODEV;
9226                         break;
9227                 }
9228                 if (LPFC_POST_STAGE_PORT_READY ==
9229                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
9230                         break;
9231                 msleep(10);
9232         }
9233
9234         /*
9235          * If there was a port error during POST, then don't proceed with
9236          * other register reads as the data may not be valid.  Just exit.
9237          */
9238         if (port_error) {
9239                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9240                         "1408 Port Failed POST - portsmphr=0x%x, "
9241                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
9242                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
9243                         portsmphr_reg.word0,
9244                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
9245                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
9246                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
9247                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
9248                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
9249                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
9250                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
9251                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
9252         } else {
9253                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9254                                 "2534 Device Info: SLIFamily=0x%x, "
9255                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
9256                                 "SLIHint_2=0x%x, FT=0x%x\n",
9257                                 bf_get(lpfc_sli_intf_sli_family,
9258                                        &phba->sli4_hba.sli_intf),
9259                                 bf_get(lpfc_sli_intf_slirev,
9260                                        &phba->sli4_hba.sli_intf),
9261                                 bf_get(lpfc_sli_intf_if_type,
9262                                        &phba->sli4_hba.sli_intf),
9263                                 bf_get(lpfc_sli_intf_sli_hint1,
9264                                        &phba->sli4_hba.sli_intf),
9265                                 bf_get(lpfc_sli_intf_sli_hint2,
9266                                        &phba->sli4_hba.sli_intf),
9267                                 bf_get(lpfc_sli_intf_func_type,
9268                                        &phba->sli4_hba.sli_intf));
9269                 /*
9270                  * Check for other Port errors during the initialization
9271                  * process.  Fail the load if the port did not come up
9272                  * correctly.
9273                  */
9274                 if_type = bf_get(lpfc_sli_intf_if_type,
9275                                  &phba->sli4_hba.sli_intf);
9276                 switch (if_type) {
9277                 case LPFC_SLI_INTF_IF_TYPE_0:
9278                         phba->sli4_hba.ue_mask_lo =
9279                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
9280                         phba->sli4_hba.ue_mask_hi =
9281                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
9282                         uerrlo_reg.word0 =
9283                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
9284                         uerrhi_reg.word0 =
9285                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
9286                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
9287                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
9288                                 lpfc_printf_log(phba, KERN_ERR,
9289                                                 LOG_TRACE_EVENT,
9290                                                 "1422 Unrecoverable Error "
9291                                                 "Detected during POST "
9292                                                 "uerr_lo_reg=0x%x, "
9293                                                 "uerr_hi_reg=0x%x, "
9294                                                 "ue_mask_lo_reg=0x%x, "
9295                                                 "ue_mask_hi_reg=0x%x\n",
9296                                                 uerrlo_reg.word0,
9297                                                 uerrhi_reg.word0,
9298                                                 phba->sli4_hba.ue_mask_lo,
9299                                                 phba->sli4_hba.ue_mask_hi);
9300                                 port_error = -ENODEV;
9301                         }
9302                         break;
9303                 case LPFC_SLI_INTF_IF_TYPE_2:
9304                 case LPFC_SLI_INTF_IF_TYPE_6:
9305                         /* Final checks.  The port status should be clean. */
9306                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
9307                                 &reg_data.word0) ||
9308                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
9309                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
9310                                 phba->work_status[0] =
9311                                         readl(phba->sli4_hba.u.if_type2.
9312                                               ERR1regaddr);
9313                                 phba->work_status[1] =
9314                                         readl(phba->sli4_hba.u.if_type2.
9315                                               ERR2regaddr);
9316                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9317                                         "2888 Unrecoverable port error "
9318                                         "following POST: port status reg "
9319                                         "0x%x, port_smphr reg 0x%x, "
9320                                         "error 1=0x%x, error 2=0x%x\n",
9321                                         reg_data.word0,
9322                                         portsmphr_reg.word0,
9323                                         phba->work_status[0],
9324                                         phba->work_status[1]);
9325                                 port_error = -ENODEV;
9326                         }
9327                         break;
9328                 case LPFC_SLI_INTF_IF_TYPE_1:
9329                 default:
9330                         break;
9331                 }
9332         }
9333         return port_error;
9334 }
9335
9336 /**
9337  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
9338  * @phba: pointer to lpfc hba data structure.
9339  * @if_type:  The SLI4 interface type getting configured.
9340  *
9341  * This routine is invoked to set up SLI4 BAR0 PCI config space register
9342  * memory map.
9343  **/
9344 static void
9345 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
9346 {
9347         switch (if_type) {
9348         case LPFC_SLI_INTF_IF_TYPE_0:
9349                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
9350                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
9351                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
9352                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
9353                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
9354                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
9355                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
9356                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
9357                 phba->sli4_hba.SLIINTFregaddr =
9358                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
9359                 break;
9360         case LPFC_SLI_INTF_IF_TYPE_2:
9361                 phba->sli4_hba.u.if_type2.EQDregaddr =
9362                         phba->sli4_hba.conf_regs_memmap_p +
9363                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
9364                 phba->sli4_hba.u.if_type2.ERR1regaddr =
9365                         phba->sli4_hba.conf_regs_memmap_p +
9366                                                 LPFC_CTL_PORT_ER1_OFFSET;
9367                 phba->sli4_hba.u.if_type2.ERR2regaddr =
9368                         phba->sli4_hba.conf_regs_memmap_p +
9369                                                 LPFC_CTL_PORT_ER2_OFFSET;
9370                 phba->sli4_hba.u.if_type2.CTRLregaddr =
9371                         phba->sli4_hba.conf_regs_memmap_p +
9372                                                 LPFC_CTL_PORT_CTL_OFFSET;
9373                 phba->sli4_hba.u.if_type2.STATUSregaddr =
9374                         phba->sli4_hba.conf_regs_memmap_p +
9375                                                 LPFC_CTL_PORT_STA_OFFSET;
9376                 phba->sli4_hba.SLIINTFregaddr =
9377                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
9378                 phba->sli4_hba.PSMPHRregaddr =
9379                         phba->sli4_hba.conf_regs_memmap_p +
9380                                                 LPFC_CTL_PORT_SEM_OFFSET;
9381                 phba->sli4_hba.RQDBregaddr =
9382                         phba->sli4_hba.conf_regs_memmap_p +
9383                                                 LPFC_ULP0_RQ_DOORBELL;
9384                 phba->sli4_hba.WQDBregaddr =
9385                         phba->sli4_hba.conf_regs_memmap_p +
9386                                                 LPFC_ULP0_WQ_DOORBELL;
9387                 phba->sli4_hba.CQDBregaddr =
9388                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
9389                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
9390                 phba->sli4_hba.MQDBregaddr =
9391                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
9392                 phba->sli4_hba.BMBXregaddr =
9393                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
9394                 break;
9395         case LPFC_SLI_INTF_IF_TYPE_6:
9396                 phba->sli4_hba.u.if_type2.EQDregaddr =
9397                         phba->sli4_hba.conf_regs_memmap_p +
9398                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
9399                 phba->sli4_hba.u.if_type2.ERR1regaddr =
9400                         phba->sli4_hba.conf_regs_memmap_p +
9401                                                 LPFC_CTL_PORT_ER1_OFFSET;
9402                 phba->sli4_hba.u.if_type2.ERR2regaddr =
9403                         phba->sli4_hba.conf_regs_memmap_p +
9404                                                 LPFC_CTL_PORT_ER2_OFFSET;
9405                 phba->sli4_hba.u.if_type2.CTRLregaddr =
9406                         phba->sli4_hba.conf_regs_memmap_p +
9407                                                 LPFC_CTL_PORT_CTL_OFFSET;
9408                 phba->sli4_hba.u.if_type2.STATUSregaddr =
9409                         phba->sli4_hba.conf_regs_memmap_p +
9410                                                 LPFC_CTL_PORT_STA_OFFSET;
9411                 phba->sli4_hba.PSMPHRregaddr =
9412                         phba->sli4_hba.conf_regs_memmap_p +
9413                                                 LPFC_CTL_PORT_SEM_OFFSET;
9414                 phba->sli4_hba.BMBXregaddr =
9415                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
9416                 break;
9417         case LPFC_SLI_INTF_IF_TYPE_1:
9418         default:
9419                 dev_printk(KERN_ERR, &phba->pcidev->dev,
9420                            "FATAL - unsupported SLI4 interface type - %d\n",
9421                            if_type);
9422                 break;
9423         }
9424 }
9425
9426 /**
9427  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
9428  * @phba: pointer to lpfc hba data structure.
9429  * @if_type: sli if type to operate on.
9430  *
9431  * This routine is invoked to set up SLI4 BAR1 register memory map.
9432  **/
9433 static void
9434 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
9435 {
9436         switch (if_type) {
9437         case LPFC_SLI_INTF_IF_TYPE_0:
9438                 phba->sli4_hba.PSMPHRregaddr =
9439                         phba->sli4_hba.ctrl_regs_memmap_p +
9440                         LPFC_SLIPORT_IF0_SMPHR;
9441                 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9442                         LPFC_HST_ISR0;
9443                 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9444                         LPFC_HST_IMR0;
9445                 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9446                         LPFC_HST_ISCR0;
9447                 break;
9448         case LPFC_SLI_INTF_IF_TYPE_6:
9449                 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9450                         LPFC_IF6_RQ_DOORBELL;
9451                 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9452                         LPFC_IF6_WQ_DOORBELL;
9453                 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9454                         LPFC_IF6_CQ_DOORBELL;
9455                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9456                         LPFC_IF6_EQ_DOORBELL;
9457                 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9458                         LPFC_IF6_MQ_DOORBELL;
9459                 break;
9460         case LPFC_SLI_INTF_IF_TYPE_2:
9461         case LPFC_SLI_INTF_IF_TYPE_1:
9462         default:
9463                 dev_err(&phba->pcidev->dev,
9464                            "FATAL - unsupported SLI4 interface type - %d\n",
9465                            if_type);
9466                 break;
9467         }
9468 }
9469
9470 /**
9471  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
9472  * @phba: pointer to lpfc hba data structure.
9473  * @vf: virtual function number
9474  *
9475  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
9476  * based on the given viftual function number, @vf.
9477  *
9478  * Return 0 if successful, otherwise -ENODEV.
9479  **/
9480 static int
9481 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
9482 {
9483         if (vf > LPFC_VIR_FUNC_MAX)
9484                 return -ENODEV;
9485
9486         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9487                                 vf * LPFC_VFR_PAGE_SIZE +
9488                                         LPFC_ULP0_RQ_DOORBELL);
9489         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9490                                 vf * LPFC_VFR_PAGE_SIZE +
9491                                         LPFC_ULP0_WQ_DOORBELL);
9492         phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9493                                 vf * LPFC_VFR_PAGE_SIZE +
9494                                         LPFC_EQCQ_DOORBELL);
9495         phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
9496         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9497                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
9498         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9499                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
9500         return 0;
9501 }
9502
9503 /**
9504  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
9505  * @phba: pointer to lpfc hba data structure.
9506  *
9507  * This routine is invoked to create the bootstrap mailbox
9508  * region consistent with the SLI-4 interface spec.  This
9509  * routine allocates all memory necessary to communicate
9510  * mailbox commands to the port and sets up all alignment
9511  * needs.  No locks are expected to be held when calling
9512  * this routine.
9513  *
9514  * Return codes
9515  *      0 - successful
9516  *      -ENOMEM - could not allocated memory.
9517  **/
9518 static int
9519 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
9520 {
9521         uint32_t bmbx_size;
9522         struct lpfc_dmabuf *dmabuf;
9523         struct dma_address *dma_address;
9524         uint32_t pa_addr;
9525         uint64_t phys_addr;
9526
9527         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
9528         if (!dmabuf)
9529                 return -ENOMEM;
9530
9531         /*
9532          * The bootstrap mailbox region is comprised of 2 parts
9533          * plus an alignment restriction of 16 bytes.
9534          */
9535         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
9536         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size,
9537                                           &dmabuf->phys, GFP_KERNEL);
9538         if (!dmabuf->virt) {
9539                 kfree(dmabuf);
9540                 return -ENOMEM;
9541         }
9542
9543         /*
9544          * Initialize the bootstrap mailbox pointers now so that the register
9545          * operations are simple later.  The mailbox dma address is required
9546          * to be 16-byte aligned.  Also align the virtual memory as each
9547          * maibox is copied into the bmbx mailbox region before issuing the
9548          * command to the port.
9549          */
9550         phba->sli4_hba.bmbx.dmabuf = dmabuf;
9551         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
9552
9553         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
9554                                               LPFC_ALIGN_16_BYTE);
9555         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
9556                                               LPFC_ALIGN_16_BYTE);
9557
9558         /*
9559          * Set the high and low physical addresses now.  The SLI4 alignment
9560          * requirement is 16 bytes and the mailbox is posted to the port
9561          * as two 30-bit addresses.  The other data is a bit marking whether
9562          * the 30-bit address is the high or low address.
9563          * Upcast bmbx aphys to 64bits so shift instruction compiles
9564          * clean on 32 bit machines.
9565          */
9566         dma_address = &phba->sli4_hba.bmbx.dma_address;
9567         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
9568         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
9569         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
9570                                            LPFC_BMBX_BIT1_ADDR_HI);
9571
9572         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
9573         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
9574                                            LPFC_BMBX_BIT1_ADDR_LO);
9575         return 0;
9576 }
9577
9578 /**
9579  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
9580  * @phba: pointer to lpfc hba data structure.
9581  *
9582  * This routine is invoked to teardown the bootstrap mailbox
9583  * region and release all host resources. This routine requires
9584  * the caller to ensure all mailbox commands recovered, no
9585  * additional mailbox comands are sent, and interrupts are disabled
9586  * before calling this routine.
9587  *
9588  **/
9589 static void
9590 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
9591 {
9592         dma_free_coherent(&phba->pcidev->dev,
9593                           phba->sli4_hba.bmbx.bmbx_size,
9594                           phba->sli4_hba.bmbx.dmabuf->virt,
9595                           phba->sli4_hba.bmbx.dmabuf->phys);
9596
9597         kfree(phba->sli4_hba.bmbx.dmabuf);
9598         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
9599 }
9600
9601 static const char * const lpfc_topo_to_str[] = {
9602         "Loop then P2P",
9603         "Loopback",
9604         "P2P Only",
9605         "Unsupported",
9606         "Loop Only",
9607         "Unsupported",
9608         "P2P then Loop",
9609 };
9610
9611 #define LINK_FLAGS_DEF  0x0
9612 #define LINK_FLAGS_P2P  0x1
9613 #define LINK_FLAGS_LOOP 0x2
9614 /**
9615  * lpfc_map_topology - Map the topology read from READ_CONFIG
9616  * @phba: pointer to lpfc hba data structure.
9617  * @rd_config: pointer to read config data
9618  *
9619  * This routine is invoked to map the topology values as read
9620  * from the read config mailbox command. If the persistent
9621  * topology feature is supported, the firmware will provide the
9622  * saved topology information to be used in INIT_LINK
9623  **/
9624 static void
9625 lpfc_map_topology(struct lpfc_hba *phba, struct lpfc_mbx_read_config *rd_config)
9626 {
9627         u8 ptv, tf, pt;
9628
9629         ptv = bf_get(lpfc_mbx_rd_conf_ptv, rd_config);
9630         tf = bf_get(lpfc_mbx_rd_conf_tf, rd_config);
9631         pt = bf_get(lpfc_mbx_rd_conf_pt, rd_config);
9632
9633         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9634                         "2027 Read Config Data : ptv:0x%x, tf:0x%x pt:0x%x",
9635                          ptv, tf, pt);
9636         if (!ptv) {
9637                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9638                                 "2019 FW does not support persistent topology "
9639                                 "Using driver parameter defined value [%s]",
9640                                 lpfc_topo_to_str[phba->cfg_topology]);
9641                 return;
9642         }
9643         /* FW supports persistent topology - override module parameter value */
9644         phba->hba_flag |= HBA_PERSISTENT_TOPO;
9645
9646         /* if ASIC_GEN_NUM >= 0xC) */
9647         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
9648                     LPFC_SLI_INTF_IF_TYPE_6) ||
9649             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
9650                     LPFC_SLI_INTF_FAMILY_G6)) {
9651                 if (!tf) {
9652                         phba->cfg_topology = ((pt == LINK_FLAGS_LOOP)
9653                                         ? FLAGS_TOPOLOGY_MODE_LOOP
9654                                         : FLAGS_TOPOLOGY_MODE_PT_PT);
9655                 } else {
9656                         phba->hba_flag &= ~HBA_PERSISTENT_TOPO;
9657                 }
9658         } else { /* G5 */
9659                 if (tf) {
9660                         /* If topology failover set - pt is '0' or '1' */
9661                         phba->cfg_topology = (pt ? FLAGS_TOPOLOGY_MODE_PT_LOOP :
9662                                               FLAGS_TOPOLOGY_MODE_LOOP_PT);
9663                 } else {
9664                         phba->cfg_topology = ((pt == LINK_FLAGS_P2P)
9665                                         ? FLAGS_TOPOLOGY_MODE_PT_PT
9666                                         : FLAGS_TOPOLOGY_MODE_LOOP);
9667                 }
9668         }
9669         if (phba->hba_flag & HBA_PERSISTENT_TOPO) {
9670                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9671                                 "2020 Using persistent topology value [%s]",
9672                                 lpfc_topo_to_str[phba->cfg_topology]);
9673         } else {
9674                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9675                                 "2021 Invalid topology values from FW "
9676                                 "Using driver parameter defined value [%s]",
9677                                 lpfc_topo_to_str[phba->cfg_topology]);
9678         }
9679 }
9680
9681 /**
9682  * lpfc_sli4_read_config - Get the config parameters.
9683  * @phba: pointer to lpfc hba data structure.
9684  *
9685  * This routine is invoked to read the configuration parameters from the HBA.
9686  * The configuration parameters are used to set the base and maximum values
9687  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
9688  * allocation for the port.
9689  *
9690  * Return codes
9691  *      0 - successful
9692  *      -ENOMEM - No available memory
9693  *      -EIO - The mailbox failed to complete successfully.
9694  **/
9695 int
9696 lpfc_sli4_read_config(struct lpfc_hba *phba)
9697 {
9698         LPFC_MBOXQ_t *pmb;
9699         struct lpfc_mbx_read_config *rd_config;
9700         union  lpfc_sli4_cfg_shdr *shdr;
9701         uint32_t shdr_status, shdr_add_status;
9702         struct lpfc_mbx_get_func_cfg *get_func_cfg;
9703         struct lpfc_rsrc_desc_fcfcoe *desc;
9704         char *pdesc_0;
9705         uint16_t forced_link_speed;
9706         uint32_t if_type, qmin;
9707         int length, i, rc = 0, rc2;
9708
9709         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9710         if (!pmb) {
9711                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9712                                 "2011 Unable to allocate memory for issuing "
9713                                 "SLI_CONFIG_SPECIAL mailbox command\n");
9714                 return -ENOMEM;
9715         }
9716
9717         lpfc_read_config(phba, pmb);
9718
9719         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9720         if (rc != MBX_SUCCESS) {
9721                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9722                                 "2012 Mailbox failed , mbxCmd x%x "
9723                                 "READ_CONFIG, mbxStatus x%x\n",
9724                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
9725                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
9726                 rc = -EIO;
9727         } else {
9728                 rd_config = &pmb->u.mqe.un.rd_config;
9729                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
9730                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
9731                         phba->sli4_hba.lnk_info.lnk_tp =
9732                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
9733                         phba->sli4_hba.lnk_info.lnk_no =
9734                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
9735                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9736                                         "3081 lnk_type:%d, lnk_numb:%d\n",
9737                                         phba->sli4_hba.lnk_info.lnk_tp,
9738                                         phba->sli4_hba.lnk_info.lnk_no);
9739                 } else
9740                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9741                                         "3082 Mailbox (x%x) returned ldv:x0\n",
9742                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
9743                 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
9744                         phba->bbcredit_support = 1;
9745                         phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
9746                 }
9747
9748                 phba->sli4_hba.conf_trunk =
9749                         bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
9750                 phba->sli4_hba.extents_in_use =
9751                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
9752                 phba->sli4_hba.max_cfg_param.max_xri =
9753                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
9754                 /* Reduce resource usage in kdump environment */
9755                 if (is_kdump_kernel() &&
9756                     phba->sli4_hba.max_cfg_param.max_xri > 512)
9757                         phba->sli4_hba.max_cfg_param.max_xri = 512;
9758                 phba->sli4_hba.max_cfg_param.xri_base =
9759                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
9760                 phba->sli4_hba.max_cfg_param.max_vpi =
9761                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
9762                 /* Limit the max we support */
9763                 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
9764                         phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
9765                 phba->sli4_hba.max_cfg_param.vpi_base =
9766                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
9767                 phba->sli4_hba.max_cfg_param.max_rpi =
9768                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
9769                 phba->sli4_hba.max_cfg_param.rpi_base =
9770                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
9771                 phba->sli4_hba.max_cfg_param.max_vfi =
9772                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
9773                 phba->sli4_hba.max_cfg_param.vfi_base =
9774                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
9775                 phba->sli4_hba.max_cfg_param.max_fcfi =
9776                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
9777                 phba->sli4_hba.max_cfg_param.max_eq =
9778                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
9779                 phba->sli4_hba.max_cfg_param.max_rq =
9780                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
9781                 phba->sli4_hba.max_cfg_param.max_wq =
9782                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
9783                 phba->sli4_hba.max_cfg_param.max_cq =
9784                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
9785                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
9786                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
9787                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
9788                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
9789                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
9790                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
9791                 phba->max_vports = phba->max_vpi;
9792
9793                 /* Next decide on FPIN or Signal E2E CGN support
9794                  * For congestion alarms and warnings valid combination are:
9795                  * 1. FPIN alarms / FPIN warnings
9796                  * 2. Signal alarms / Signal warnings
9797                  * 3. FPIN alarms / Signal warnings
9798                  * 4. Signal alarms / FPIN warnings
9799                  *
9800                  * Initialize the adapter frequency to 100 mSecs
9801                  */
9802                 phba->cgn_reg_fpin = LPFC_CGN_FPIN_BOTH;
9803                 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
9804                 phba->cgn_sig_freq = lpfc_fabric_cgn_frequency;
9805
9806                 if (lpfc_use_cgn_signal) {
9807                         if (bf_get(lpfc_mbx_rd_conf_wcs, rd_config)) {
9808                                 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY;
9809                                 phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN;
9810                         }
9811                         if (bf_get(lpfc_mbx_rd_conf_acs, rd_config)) {
9812                                 /* MUST support both alarm and warning
9813                                  * because EDC does not support alarm alone.
9814                                  */
9815                                 if (phba->cgn_reg_signal !=
9816                                     EDC_CG_SIG_WARN_ONLY) {
9817                                         /* Must support both or none */
9818                                         phba->cgn_reg_fpin = LPFC_CGN_FPIN_BOTH;
9819                                         phba->cgn_reg_signal =
9820                                                 EDC_CG_SIG_NOTSUPPORTED;
9821                                 } else {
9822                                         phba->cgn_reg_signal =
9823                                                 EDC_CG_SIG_WARN_ALARM;
9824                                         phba->cgn_reg_fpin =
9825                                                 LPFC_CGN_FPIN_NONE;
9826                                 }
9827                         }
9828                 }
9829
9830                 /* Set the congestion initial signal and fpin values. */
9831                 phba->cgn_init_reg_fpin = phba->cgn_reg_fpin;
9832                 phba->cgn_init_reg_signal = phba->cgn_reg_signal;
9833
9834                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
9835                                 "6446 READ_CONFIG reg_sig x%x reg_fpin:x%x\n",
9836                                 phba->cgn_reg_signal, phba->cgn_reg_fpin);
9837
9838                 lpfc_map_topology(phba, rd_config);
9839                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9840                                 "2003 cfg params Extents? %d "
9841                                 "XRI(B:%d M:%d), "
9842                                 "VPI(B:%d M:%d) "
9843                                 "VFI(B:%d M:%d) "
9844                                 "RPI(B:%d M:%d) "
9845                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d lmt:x%x\n",
9846                                 phba->sli4_hba.extents_in_use,
9847                                 phba->sli4_hba.max_cfg_param.xri_base,
9848                                 phba->sli4_hba.max_cfg_param.max_xri,
9849                                 phba->sli4_hba.max_cfg_param.vpi_base,
9850                                 phba->sli4_hba.max_cfg_param.max_vpi,
9851                                 phba->sli4_hba.max_cfg_param.vfi_base,
9852                                 phba->sli4_hba.max_cfg_param.max_vfi,
9853                                 phba->sli4_hba.max_cfg_param.rpi_base,
9854                                 phba->sli4_hba.max_cfg_param.max_rpi,
9855                                 phba->sli4_hba.max_cfg_param.max_fcfi,
9856                                 phba->sli4_hba.max_cfg_param.max_eq,
9857                                 phba->sli4_hba.max_cfg_param.max_cq,
9858                                 phba->sli4_hba.max_cfg_param.max_wq,
9859                                 phba->sli4_hba.max_cfg_param.max_rq,
9860                                 phba->lmt);
9861
9862                 /*
9863                  * Calculate queue resources based on how
9864                  * many WQ/CQ/EQs are available.
9865                  */
9866                 qmin = phba->sli4_hba.max_cfg_param.max_wq;
9867                 if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
9868                         qmin = phba->sli4_hba.max_cfg_param.max_cq;
9869                 if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
9870                         qmin = phba->sli4_hba.max_cfg_param.max_eq;
9871                 /*
9872                  * Whats left after this can go toward NVME / FCP.
9873                  * The minus 4 accounts for ELS, NVME LS, MBOX
9874                  * plus one extra. When configured for
9875                  * NVMET, FCP io channel WQs are not created.
9876                  */
9877                 qmin -= 4;
9878
9879                 /* Check to see if there is enough for NVME */
9880                 if ((phba->cfg_irq_chann > qmin) ||
9881                     (phba->cfg_hdw_queue > qmin)) {
9882                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9883                                         "2005 Reducing Queues - "
9884                                         "FW resource limitation: "
9885                                         "WQ %d CQ %d EQ %d: min %d: "
9886                                         "IRQ %d HDWQ %d\n",
9887                                         phba->sli4_hba.max_cfg_param.max_wq,
9888                                         phba->sli4_hba.max_cfg_param.max_cq,
9889                                         phba->sli4_hba.max_cfg_param.max_eq,
9890                                         qmin, phba->cfg_irq_chann,
9891                                         phba->cfg_hdw_queue);
9892
9893                         if (phba->cfg_irq_chann > qmin)
9894                                 phba->cfg_irq_chann = qmin;
9895                         if (phba->cfg_hdw_queue > qmin)
9896                                 phba->cfg_hdw_queue = qmin;
9897                 }
9898         }
9899
9900         if (rc)
9901                 goto read_cfg_out;
9902
9903         /* Update link speed if forced link speed is supported */
9904         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9905         if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
9906                 forced_link_speed =
9907                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
9908                 if (forced_link_speed) {
9909                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
9910
9911                         switch (forced_link_speed) {
9912                         case LINK_SPEED_1G:
9913                                 phba->cfg_link_speed =
9914                                         LPFC_USER_LINK_SPEED_1G;
9915                                 break;
9916                         case LINK_SPEED_2G:
9917                                 phba->cfg_link_speed =
9918                                         LPFC_USER_LINK_SPEED_2G;
9919                                 break;
9920                         case LINK_SPEED_4G:
9921                                 phba->cfg_link_speed =
9922                                         LPFC_USER_LINK_SPEED_4G;
9923                                 break;
9924                         case LINK_SPEED_8G:
9925                                 phba->cfg_link_speed =
9926                                         LPFC_USER_LINK_SPEED_8G;
9927                                 break;
9928                         case LINK_SPEED_10G:
9929                                 phba->cfg_link_speed =
9930                                         LPFC_USER_LINK_SPEED_10G;
9931                                 break;
9932                         case LINK_SPEED_16G:
9933                                 phba->cfg_link_speed =
9934                                         LPFC_USER_LINK_SPEED_16G;
9935                                 break;
9936                         case LINK_SPEED_32G:
9937                                 phba->cfg_link_speed =
9938                                         LPFC_USER_LINK_SPEED_32G;
9939                                 break;
9940                         case LINK_SPEED_64G:
9941                                 phba->cfg_link_speed =
9942                                         LPFC_USER_LINK_SPEED_64G;
9943                                 break;
9944                         case 0xffff:
9945                                 phba->cfg_link_speed =
9946                                         LPFC_USER_LINK_SPEED_AUTO;
9947                                 break;
9948                         default:
9949                                 lpfc_printf_log(phba, KERN_ERR,
9950                                                 LOG_TRACE_EVENT,
9951                                                 "0047 Unrecognized link "
9952                                                 "speed : %d\n",
9953                                                 forced_link_speed);
9954                                 phba->cfg_link_speed =
9955                                         LPFC_USER_LINK_SPEED_AUTO;
9956                         }
9957                 }
9958         }
9959
9960         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
9961         length = phba->sli4_hba.max_cfg_param.max_xri -
9962                         lpfc_sli4_get_els_iocb_cnt(phba);
9963         if (phba->cfg_hba_queue_depth > length) {
9964                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9965                                 "3361 HBA queue depth changed from %d to %d\n",
9966                                 phba->cfg_hba_queue_depth, length);
9967                 phba->cfg_hba_queue_depth = length;
9968         }
9969
9970         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
9971             LPFC_SLI_INTF_IF_TYPE_2)
9972                 goto read_cfg_out;
9973
9974         /* get the pf# and vf# for SLI4 if_type 2 port */
9975         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
9976                   sizeof(struct lpfc_sli4_cfg_mhdr));
9977         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
9978                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
9979                          length, LPFC_SLI4_MBX_EMBED);
9980
9981         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9982         shdr = (union lpfc_sli4_cfg_shdr *)
9983                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
9984         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9985         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9986         if (rc2 || shdr_status || shdr_add_status) {
9987                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9988                                 "3026 Mailbox failed , mbxCmd x%x "
9989                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
9990                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
9991                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
9992                 goto read_cfg_out;
9993         }
9994
9995         /* search for fc_fcoe resrouce descriptor */
9996         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
9997
9998         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
9999         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
10000         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
10001         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
10002                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
10003         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
10004                 goto read_cfg_out;
10005
10006         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
10007                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
10008                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
10009                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
10010                         phba->sli4_hba.iov.pf_number =
10011                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
10012                         phba->sli4_hba.iov.vf_number =
10013                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
10014                         break;
10015                 }
10016         }
10017
10018         if (i < LPFC_RSRC_DESC_MAX_NUM)
10019                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10020                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
10021                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
10022                                 phba->sli4_hba.iov.vf_number);
10023         else
10024                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10025                                 "3028 GET_FUNCTION_CONFIG: failed to find "
10026                                 "Resource Descriptor:x%x\n",
10027                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
10028
10029 read_cfg_out:
10030         mempool_free(pmb, phba->mbox_mem_pool);
10031         return rc;
10032 }
10033
10034 /**
10035  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
10036  * @phba: pointer to lpfc hba data structure.
10037  *
10038  * This routine is invoked to setup the port-side endian order when
10039  * the port if_type is 0.  This routine has no function for other
10040  * if_types.
10041  *
10042  * Return codes
10043  *      0 - successful
10044  *      -ENOMEM - No available memory
10045  *      -EIO - The mailbox failed to complete successfully.
10046  **/
10047 static int
10048 lpfc_setup_endian_order(struct lpfc_hba *phba)
10049 {
10050         LPFC_MBOXQ_t *mboxq;
10051         uint32_t if_type, rc = 0;
10052         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
10053                                       HOST_ENDIAN_HIGH_WORD1};
10054
10055         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10056         switch (if_type) {
10057         case LPFC_SLI_INTF_IF_TYPE_0:
10058                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
10059                                                        GFP_KERNEL);
10060                 if (!mboxq) {
10061                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10062                                         "0492 Unable to allocate memory for "
10063                                         "issuing SLI_CONFIG_SPECIAL mailbox "
10064                                         "command\n");
10065                         return -ENOMEM;
10066                 }
10067
10068                 /*
10069                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
10070                  * two words to contain special data values and no other data.
10071                  */
10072                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
10073                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
10074                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10075                 if (rc != MBX_SUCCESS) {
10076                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10077                                         "0493 SLI_CONFIG_SPECIAL mailbox "
10078                                         "failed with status x%x\n",
10079                                         rc);
10080                         rc = -EIO;
10081                 }
10082                 mempool_free(mboxq, phba->mbox_mem_pool);
10083                 break;
10084         case LPFC_SLI_INTF_IF_TYPE_6:
10085         case LPFC_SLI_INTF_IF_TYPE_2:
10086         case LPFC_SLI_INTF_IF_TYPE_1:
10087         default:
10088                 break;
10089         }
10090         return rc;
10091 }
10092
10093 /**
10094  * lpfc_sli4_queue_verify - Verify and update EQ counts
10095  * @phba: pointer to lpfc hba data structure.
10096  *
10097  * This routine is invoked to check the user settable queue counts for EQs.
10098  * After this routine is called the counts will be set to valid values that
10099  * adhere to the constraints of the system's interrupt vectors and the port's
10100  * queue resources.
10101  *
10102  * Return codes
10103  *      0 - successful
10104  *      -ENOMEM - No available memory
10105  **/
10106 static int
10107 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
10108 {
10109         /*
10110          * Sanity check for configured queue parameters against the run-time
10111          * device parameters
10112          */
10113
10114         if (phba->nvmet_support) {
10115                 if (phba->cfg_hdw_queue < phba->cfg_nvmet_mrq)
10116                         phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
10117                 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
10118                         phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
10119         }
10120
10121         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10122                         "2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
10123                         phba->cfg_hdw_queue, phba->cfg_irq_chann,
10124                         phba->cfg_nvmet_mrq);
10125
10126         /* Get EQ depth from module parameter, fake the default for now */
10127         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
10128         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
10129
10130         /* Get CQ depth from module parameter, fake the default for now */
10131         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
10132         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
10133         return 0;
10134 }
10135
10136 static int
10137 lpfc_alloc_io_wq_cq(struct lpfc_hba *phba, int idx)
10138 {
10139         struct lpfc_queue *qdesc;
10140         u32 wqesize;
10141         int cpu;
10142
10143         cpu = lpfc_find_cpu_handle(phba, idx, LPFC_FIND_BY_HDWQ);
10144         /* Create Fast Path IO CQs */
10145         if (phba->enab_exp_wqcq_pages)
10146                 /* Increase the CQ size when WQEs contain an embedded cdb */
10147                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
10148                                               phba->sli4_hba.cq_esize,
10149                                               LPFC_CQE_EXP_COUNT, cpu);
10150
10151         else
10152                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10153                                               phba->sli4_hba.cq_esize,
10154                                               phba->sli4_hba.cq_ecount, cpu);
10155         if (!qdesc) {
10156                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10157                                 "0499 Failed allocate fast-path IO CQ (%d)\n",
10158                                 idx);
10159                 return 1;
10160         }
10161         qdesc->qe_valid = 1;
10162         qdesc->hdwq = idx;
10163         qdesc->chann = cpu;
10164         phba->sli4_hba.hdwq[idx].io_cq = qdesc;
10165
10166         /* Create Fast Path IO WQs */
10167         if (phba->enab_exp_wqcq_pages) {
10168                 /* Increase the WQ size when WQEs contain an embedded cdb */
10169                 wqesize = (phba->fcp_embed_io) ?
10170                         LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
10171                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
10172                                               wqesize,
10173                                               LPFC_WQE_EXP_COUNT, cpu);
10174         } else
10175                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10176                                               phba->sli4_hba.wq_esize,
10177                                               phba->sli4_hba.wq_ecount, cpu);
10178
10179         if (!qdesc) {
10180                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10181                                 "0503 Failed allocate fast-path IO WQ (%d)\n",
10182                                 idx);
10183                 return 1;
10184         }
10185         qdesc->hdwq = idx;
10186         qdesc->chann = cpu;
10187         phba->sli4_hba.hdwq[idx].io_wq = qdesc;
10188         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10189         return 0;
10190 }
10191
10192 /**
10193  * lpfc_sli4_queue_create - Create all the SLI4 queues
10194  * @phba: pointer to lpfc hba data structure.
10195  *
10196  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
10197  * operation. For each SLI4 queue type, the parameters such as queue entry
10198  * count (queue depth) shall be taken from the module parameter. For now,
10199  * we just use some constant number as place holder.
10200  *
10201  * Return codes
10202  *      0 - successful
10203  *      -ENOMEM - No availble memory
10204  *      -EIO - The mailbox failed to complete successfully.
10205  **/
10206 int
10207 lpfc_sli4_queue_create(struct lpfc_hba *phba)
10208 {
10209         struct lpfc_queue *qdesc;
10210         int idx, cpu, eqcpu;
10211         struct lpfc_sli4_hdw_queue *qp;
10212         struct lpfc_vector_map_info *cpup;
10213         struct lpfc_vector_map_info *eqcpup;
10214         struct lpfc_eq_intr_info *eqi;
10215
10216         /*
10217          * Create HBA Record arrays.
10218          * Both NVME and FCP will share that same vectors / EQs
10219          */
10220         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
10221         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
10222         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
10223         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
10224         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
10225         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
10226         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
10227         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
10228         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
10229         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
10230
10231         if (!phba->sli4_hba.hdwq) {
10232                 phba->sli4_hba.hdwq = kcalloc(
10233                         phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue),
10234                         GFP_KERNEL);
10235                 if (!phba->sli4_hba.hdwq) {
10236                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10237                                         "6427 Failed allocate memory for "
10238                                         "fast-path Hardware Queue array\n");
10239                         goto out_error;
10240                 }
10241                 /* Prepare hardware queues to take IO buffers */
10242                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10243                         qp = &phba->sli4_hba.hdwq[idx];
10244                         spin_lock_init(&qp->io_buf_list_get_lock);
10245                         spin_lock_init(&qp->io_buf_list_put_lock);
10246                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
10247                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
10248                         qp->get_io_bufs = 0;
10249                         qp->put_io_bufs = 0;
10250                         qp->total_io_bufs = 0;
10251                         spin_lock_init(&qp->abts_io_buf_list_lock);
10252                         INIT_LIST_HEAD(&qp->lpfc_abts_io_buf_list);
10253                         qp->abts_scsi_io_bufs = 0;
10254                         qp->abts_nvme_io_bufs = 0;
10255                         INIT_LIST_HEAD(&qp->sgl_list);
10256                         INIT_LIST_HEAD(&qp->cmd_rsp_buf_list);
10257                         spin_lock_init(&qp->hdwq_lock);
10258                 }
10259         }
10260
10261         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10262                 if (phba->nvmet_support) {
10263                         phba->sli4_hba.nvmet_cqset = kcalloc(
10264                                         phba->cfg_nvmet_mrq,
10265                                         sizeof(struct lpfc_queue *),
10266                                         GFP_KERNEL);
10267                         if (!phba->sli4_hba.nvmet_cqset) {
10268                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10269                                         "3121 Fail allocate memory for "
10270                                         "fast-path CQ set array\n");
10271                                 goto out_error;
10272                         }
10273                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
10274                                         phba->cfg_nvmet_mrq,
10275                                         sizeof(struct lpfc_queue *),
10276                                         GFP_KERNEL);
10277                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
10278                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10279                                         "3122 Fail allocate memory for "
10280                                         "fast-path RQ set hdr array\n");
10281                                 goto out_error;
10282                         }
10283                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
10284                                         phba->cfg_nvmet_mrq,
10285                                         sizeof(struct lpfc_queue *),
10286                                         GFP_KERNEL);
10287                         if (!phba->sli4_hba.nvmet_mrq_data) {
10288                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10289                                         "3124 Fail allocate memory for "
10290                                         "fast-path RQ set data array\n");
10291                                 goto out_error;
10292                         }
10293                 }
10294         }
10295
10296         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
10297
10298         /* Create HBA Event Queues (EQs) */
10299         for_each_present_cpu(cpu) {
10300                 /* We only want to create 1 EQ per vector, even though
10301                  * multiple CPUs might be using that vector. so only
10302                  * selects the CPUs that are LPFC_CPU_FIRST_IRQ.
10303                  */
10304                 cpup = &phba->sli4_hba.cpu_map[cpu];
10305                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
10306                         continue;
10307
10308                 /* Get a ptr to the Hardware Queue associated with this CPU */
10309                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
10310
10311                 /* Allocate an EQ */
10312                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10313                                               phba->sli4_hba.eq_esize,
10314                                               phba->sli4_hba.eq_ecount, cpu);
10315                 if (!qdesc) {
10316                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10317                                         "0497 Failed allocate EQ (%d)\n",
10318                                         cpup->hdwq);
10319                         goto out_error;
10320                 }
10321                 qdesc->qe_valid = 1;
10322                 qdesc->hdwq = cpup->hdwq;
10323                 qdesc->chann = cpu; /* First CPU this EQ is affinitized to */
10324                 qdesc->last_cpu = qdesc->chann;
10325
10326                 /* Save the allocated EQ in the Hardware Queue */
10327                 qp->hba_eq = qdesc;
10328
10329                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
10330                 list_add(&qdesc->cpu_list, &eqi->list);
10331         }
10332
10333         /* Now we need to populate the other Hardware Queues, that share
10334          * an IRQ vector, with the associated EQ ptr.
10335          */
10336         for_each_present_cpu(cpu) {
10337                 cpup = &phba->sli4_hba.cpu_map[cpu];
10338
10339                 /* Check for EQ already allocated in previous loop */
10340                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
10341                         continue;
10342
10343                 /* Check for multiple CPUs per hdwq */
10344                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
10345                 if (qp->hba_eq)
10346                         continue;
10347
10348                 /* We need to share an EQ for this hdwq */
10349                 eqcpu = lpfc_find_cpu_handle(phba, cpup->eq, LPFC_FIND_BY_EQ);
10350                 eqcpup = &phba->sli4_hba.cpu_map[eqcpu];
10351                 qp->hba_eq = phba->sli4_hba.hdwq[eqcpup->hdwq].hba_eq;
10352         }
10353
10354         /* Allocate IO Path SLI4 CQ/WQs */
10355         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10356                 if (lpfc_alloc_io_wq_cq(phba, idx))
10357                         goto out_error;
10358         }
10359
10360         if (phba->nvmet_support) {
10361                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
10362                         cpu = lpfc_find_cpu_handle(phba, idx,
10363                                                    LPFC_FIND_BY_HDWQ);
10364                         qdesc = lpfc_sli4_queue_alloc(phba,
10365                                                       LPFC_DEFAULT_PAGE_SIZE,
10366                                                       phba->sli4_hba.cq_esize,
10367                                                       phba->sli4_hba.cq_ecount,
10368                                                       cpu);
10369                         if (!qdesc) {
10370                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10371                                                 "3142 Failed allocate NVME "
10372                                                 "CQ Set (%d)\n", idx);
10373                                 goto out_error;
10374                         }
10375                         qdesc->qe_valid = 1;
10376                         qdesc->hdwq = idx;
10377                         qdesc->chann = cpu;
10378                         phba->sli4_hba.nvmet_cqset[idx] = qdesc;
10379                 }
10380         }
10381
10382         /*
10383          * Create Slow Path Completion Queues (CQs)
10384          */
10385
10386         cpu = lpfc_find_cpu_handle(phba, 0, LPFC_FIND_BY_EQ);
10387         /* Create slow-path Mailbox Command Complete Queue */
10388         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10389                                       phba->sli4_hba.cq_esize,
10390                                       phba->sli4_hba.cq_ecount, cpu);
10391         if (!qdesc) {
10392                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10393                                 "0500 Failed allocate slow-path mailbox CQ\n");
10394                 goto out_error;
10395         }
10396         qdesc->qe_valid = 1;
10397         phba->sli4_hba.mbx_cq = qdesc;
10398
10399         /* Create slow-path ELS Complete Queue */
10400         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10401                                       phba->sli4_hba.cq_esize,
10402                                       phba->sli4_hba.cq_ecount, cpu);
10403         if (!qdesc) {
10404                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10405                                 "0501 Failed allocate slow-path ELS CQ\n");
10406                 goto out_error;
10407         }
10408         qdesc->qe_valid = 1;
10409         qdesc->chann = cpu;
10410         phba->sli4_hba.els_cq = qdesc;
10411
10412
10413         /*
10414          * Create Slow Path Work Queues (WQs)
10415          */
10416
10417         /* Create Mailbox Command Queue */
10418
10419         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10420                                       phba->sli4_hba.mq_esize,
10421                                       phba->sli4_hba.mq_ecount, cpu);
10422         if (!qdesc) {
10423                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10424                                 "0505 Failed allocate slow-path MQ\n");
10425                 goto out_error;
10426         }
10427         qdesc->chann = cpu;
10428         phba->sli4_hba.mbx_wq = qdesc;
10429
10430         /*
10431          * Create ELS Work Queues
10432          */
10433
10434         /* Create slow-path ELS Work Queue */
10435         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10436                                       phba->sli4_hba.wq_esize,
10437                                       phba->sli4_hba.wq_ecount, cpu);
10438         if (!qdesc) {
10439                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10440                                 "0504 Failed allocate slow-path ELS WQ\n");
10441                 goto out_error;
10442         }
10443         qdesc->chann = cpu;
10444         phba->sli4_hba.els_wq = qdesc;
10445         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10446
10447         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10448                 /* Create NVME LS Complete Queue */
10449                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10450                                               phba->sli4_hba.cq_esize,
10451                                               phba->sli4_hba.cq_ecount, cpu);
10452                 if (!qdesc) {
10453                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10454                                         "6079 Failed allocate NVME LS CQ\n");
10455                         goto out_error;
10456                 }
10457                 qdesc->chann = cpu;
10458                 qdesc->qe_valid = 1;
10459                 phba->sli4_hba.nvmels_cq = qdesc;
10460
10461                 /* Create NVME LS Work Queue */
10462                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10463                                               phba->sli4_hba.wq_esize,
10464                                               phba->sli4_hba.wq_ecount, cpu);
10465                 if (!qdesc) {
10466                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10467                                         "6080 Failed allocate NVME LS WQ\n");
10468                         goto out_error;
10469                 }
10470                 qdesc->chann = cpu;
10471                 phba->sli4_hba.nvmels_wq = qdesc;
10472                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10473         }
10474
10475         /*
10476          * Create Receive Queue (RQ)
10477          */
10478
10479         /* Create Receive Queue for header */
10480         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10481                                       phba->sli4_hba.rq_esize,
10482                                       phba->sli4_hba.rq_ecount, cpu);
10483         if (!qdesc) {
10484                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10485                                 "0506 Failed allocate receive HRQ\n");
10486                 goto out_error;
10487         }
10488         phba->sli4_hba.hdr_rq = qdesc;
10489
10490         /* Create Receive Queue for data */
10491         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10492                                       phba->sli4_hba.rq_esize,
10493                                       phba->sli4_hba.rq_ecount, cpu);
10494         if (!qdesc) {
10495                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10496                                 "0507 Failed allocate receive DRQ\n");
10497                 goto out_error;
10498         }
10499         phba->sli4_hba.dat_rq = qdesc;
10500
10501         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
10502             phba->nvmet_support) {
10503                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
10504                         cpu = lpfc_find_cpu_handle(phba, idx,
10505                                                    LPFC_FIND_BY_HDWQ);
10506                         /* Create NVMET Receive Queue for header */
10507                         qdesc = lpfc_sli4_queue_alloc(phba,
10508                                                       LPFC_DEFAULT_PAGE_SIZE,
10509                                                       phba->sli4_hba.rq_esize,
10510                                                       LPFC_NVMET_RQE_DEF_COUNT,
10511                                                       cpu);
10512                         if (!qdesc) {
10513                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10514                                                 "3146 Failed allocate "
10515                                                 "receive HRQ\n");
10516                                 goto out_error;
10517                         }
10518                         qdesc->hdwq = idx;
10519                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
10520
10521                         /* Only needed for header of RQ pair */
10522                         qdesc->rqbp = kzalloc_node(sizeof(*qdesc->rqbp),
10523                                                    GFP_KERNEL,
10524                                                    cpu_to_node(cpu));
10525                         if (qdesc->rqbp == NULL) {
10526                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10527                                                 "6131 Failed allocate "
10528                                                 "Header RQBP\n");
10529                                 goto out_error;
10530                         }
10531
10532                         /* Put list in known state in case driver load fails. */
10533                         INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
10534
10535                         /* Create NVMET Receive Queue for data */
10536                         qdesc = lpfc_sli4_queue_alloc(phba,
10537                                                       LPFC_DEFAULT_PAGE_SIZE,
10538                                                       phba->sli4_hba.rq_esize,
10539                                                       LPFC_NVMET_RQE_DEF_COUNT,
10540                                                       cpu);
10541                         if (!qdesc) {
10542                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10543                                                 "3156 Failed allocate "
10544                                                 "receive DRQ\n");
10545                                 goto out_error;
10546                         }
10547                         qdesc->hdwq = idx;
10548                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
10549                 }
10550         }
10551
10552         /* Clear NVME stats */
10553         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10554                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10555                         memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
10556                                sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
10557                 }
10558         }
10559
10560         /* Clear SCSI stats */
10561         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
10562                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10563                         memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
10564                                sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
10565                 }
10566         }
10567
10568         return 0;
10569
10570 out_error:
10571         lpfc_sli4_queue_destroy(phba);
10572         return -ENOMEM;
10573 }
10574
10575 static inline void
10576 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
10577 {
10578         if (*qp != NULL) {
10579                 lpfc_sli4_queue_free(*qp);
10580                 *qp = NULL;
10581         }
10582 }
10583
10584 static inline void
10585 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
10586 {
10587         int idx;
10588
10589         if (*qs == NULL)
10590                 return;
10591
10592         for (idx = 0; idx < max; idx++)
10593                 __lpfc_sli4_release_queue(&(*qs)[idx]);
10594
10595         kfree(*qs);
10596         *qs = NULL;
10597 }
10598
10599 static inline void
10600 lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
10601 {
10602         struct lpfc_sli4_hdw_queue *hdwq;
10603         struct lpfc_queue *eq;
10604         uint32_t idx;
10605
10606         hdwq = phba->sli4_hba.hdwq;
10607
10608         /* Loop thru all Hardware Queues */
10609         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10610                 /* Free the CQ/WQ corresponding to the Hardware Queue */
10611                 lpfc_sli4_queue_free(hdwq[idx].io_cq);
10612                 lpfc_sli4_queue_free(hdwq[idx].io_wq);
10613                 hdwq[idx].hba_eq = NULL;
10614                 hdwq[idx].io_cq = NULL;
10615                 hdwq[idx].io_wq = NULL;
10616                 if (phba->cfg_xpsgl && !phba->nvmet_support)
10617                         lpfc_free_sgl_per_hdwq(phba, &hdwq[idx]);
10618                 lpfc_free_cmd_rsp_buf_per_hdwq(phba, &hdwq[idx]);
10619         }
10620         /* Loop thru all IRQ vectors */
10621         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
10622                 /* Free the EQ corresponding to the IRQ vector */
10623                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
10624                 lpfc_sli4_queue_free(eq);
10625                 phba->sli4_hba.hba_eq_hdl[idx].eq = NULL;
10626         }
10627 }
10628
10629 /**
10630  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
10631  * @phba: pointer to lpfc hba data structure.
10632  *
10633  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
10634  * operation.
10635  *
10636  * Return codes
10637  *      0 - successful
10638  *      -ENOMEM - No available memory
10639  *      -EIO - The mailbox failed to complete successfully.
10640  **/
10641 void
10642 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
10643 {
10644         /*
10645          * Set FREE_INIT before beginning to free the queues.
10646          * Wait until the users of queues to acknowledge to
10647          * release queues by clearing FREE_WAIT.
10648          */
10649         spin_lock_irq(&phba->hbalock);
10650         phba->sli.sli_flag |= LPFC_QUEUE_FREE_INIT;
10651         while (phba->sli.sli_flag & LPFC_QUEUE_FREE_WAIT) {
10652                 spin_unlock_irq(&phba->hbalock);
10653                 msleep(20);
10654                 spin_lock_irq(&phba->hbalock);
10655         }
10656         spin_unlock_irq(&phba->hbalock);
10657
10658         lpfc_sli4_cleanup_poll_list(phba);
10659
10660         /* Release HBA eqs */
10661         if (phba->sli4_hba.hdwq)
10662                 lpfc_sli4_release_hdwq(phba);
10663
10664         if (phba->nvmet_support) {
10665                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
10666                                          phba->cfg_nvmet_mrq);
10667
10668                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
10669                                          phba->cfg_nvmet_mrq);
10670                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
10671                                          phba->cfg_nvmet_mrq);
10672         }
10673
10674         /* Release mailbox command work queue */
10675         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
10676
10677         /* Release ELS work queue */
10678         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
10679
10680         /* Release ELS work queue */
10681         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
10682
10683         /* Release unsolicited receive queue */
10684         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
10685         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
10686
10687         /* Release ELS complete queue */
10688         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
10689
10690         /* Release NVME LS complete queue */
10691         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
10692
10693         /* Release mailbox command complete queue */
10694         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
10695
10696         /* Everything on this list has been freed */
10697         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
10698
10699         /* Done with freeing the queues */
10700         spin_lock_irq(&phba->hbalock);
10701         phba->sli.sli_flag &= ~LPFC_QUEUE_FREE_INIT;
10702         spin_unlock_irq(&phba->hbalock);
10703 }
10704
10705 int
10706 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
10707 {
10708         struct lpfc_rqb *rqbp;
10709         struct lpfc_dmabuf *h_buf;
10710         struct rqb_dmabuf *rqb_buffer;
10711
10712         rqbp = rq->rqbp;
10713         while (!list_empty(&rqbp->rqb_buffer_list)) {
10714                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
10715                                  struct lpfc_dmabuf, list);
10716
10717                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
10718                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
10719                 rqbp->buffer_count--;
10720         }
10721         return 1;
10722 }
10723
10724 static int
10725 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
10726         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
10727         int qidx, uint32_t qtype)
10728 {
10729         struct lpfc_sli_ring *pring;
10730         int rc;
10731
10732         if (!eq || !cq || !wq) {
10733                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10734                         "6085 Fast-path %s (%d) not allocated\n",
10735                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
10736                 return -ENOMEM;
10737         }
10738
10739         /* create the Cq first */
10740         rc = lpfc_cq_create(phba, cq, eq,
10741                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
10742         if (rc) {
10743                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10744                                 "6086 Failed setup of CQ (%d), rc = 0x%x\n",
10745                                 qidx, (uint32_t)rc);
10746                 return rc;
10747         }
10748
10749         if (qtype != LPFC_MBOX) {
10750                 /* Setup cq_map for fast lookup */
10751                 if (cq_map)
10752                         *cq_map = cq->queue_id;
10753
10754                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10755                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
10756                         qidx, cq->queue_id, qidx, eq->queue_id);
10757
10758                 /* create the wq */
10759                 rc = lpfc_wq_create(phba, wq, cq, qtype);
10760                 if (rc) {
10761                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10762                                 "4618 Fail setup fastpath WQ (%d), rc = 0x%x\n",
10763                                 qidx, (uint32_t)rc);
10764                         /* no need to tear down cq - caller will do so */
10765                         return rc;
10766                 }
10767
10768                 /* Bind this CQ/WQ to the NVME ring */
10769                 pring = wq->pring;
10770                 pring->sli.sli4.wqp = (void *)wq;
10771                 cq->pring = pring;
10772
10773                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10774                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
10775                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
10776         } else {
10777                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
10778                 if (rc) {
10779                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10780                                         "0539 Failed setup of slow-path MQ: "
10781                                         "rc = 0x%x\n", rc);
10782                         /* no need to tear down cq - caller will do so */
10783                         return rc;
10784                 }
10785
10786                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10787                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
10788                         phba->sli4_hba.mbx_wq->queue_id,
10789                         phba->sli4_hba.mbx_cq->queue_id);
10790         }
10791
10792         return 0;
10793 }
10794
10795 /**
10796  * lpfc_setup_cq_lookup - Setup the CQ lookup table
10797  * @phba: pointer to lpfc hba data structure.
10798  *
10799  * This routine will populate the cq_lookup table by all
10800  * available CQ queue_id's.
10801  **/
10802 static void
10803 lpfc_setup_cq_lookup(struct lpfc_hba *phba)
10804 {
10805         struct lpfc_queue *eq, *childq;
10806         int qidx;
10807
10808         memset(phba->sli4_hba.cq_lookup, 0,
10809                (sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
10810         /* Loop thru all IRQ vectors */
10811         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
10812                 /* Get the EQ corresponding to the IRQ vector */
10813                 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
10814                 if (!eq)
10815                         continue;
10816                 /* Loop through all CQs associated with that EQ */
10817                 list_for_each_entry(childq, &eq->child_list, list) {
10818                         if (childq->queue_id > phba->sli4_hba.cq_max)
10819                                 continue;
10820                         if (childq->subtype == LPFC_IO)
10821                                 phba->sli4_hba.cq_lookup[childq->queue_id] =
10822                                         childq;
10823                 }
10824         }
10825 }
10826
10827 /**
10828  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
10829  * @phba: pointer to lpfc hba data structure.
10830  *
10831  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
10832  * operation.
10833  *
10834  * Return codes
10835  *      0 - successful
10836  *      -ENOMEM - No available memory
10837  *      -EIO - The mailbox failed to complete successfully.
10838  **/
10839 int
10840 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
10841 {
10842         uint32_t shdr_status, shdr_add_status;
10843         union lpfc_sli4_cfg_shdr *shdr;
10844         struct lpfc_vector_map_info *cpup;
10845         struct lpfc_sli4_hdw_queue *qp;
10846         LPFC_MBOXQ_t *mboxq;
10847         int qidx, cpu;
10848         uint32_t length, usdelay;
10849         int rc = -ENOMEM;
10850
10851         /* Check for dual-ULP support */
10852         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10853         if (!mboxq) {
10854                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10855                                 "3249 Unable to allocate memory for "
10856                                 "QUERY_FW_CFG mailbox command\n");
10857                 return -ENOMEM;
10858         }
10859         length = (sizeof(struct lpfc_mbx_query_fw_config) -
10860                   sizeof(struct lpfc_sli4_cfg_mhdr));
10861         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10862                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
10863                          length, LPFC_SLI4_MBX_EMBED);
10864
10865         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10866
10867         shdr = (union lpfc_sli4_cfg_shdr *)
10868                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
10869         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10870         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10871         if (shdr_status || shdr_add_status || rc) {
10872                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10873                                 "3250 QUERY_FW_CFG mailbox failed with status "
10874                                 "x%x add_status x%x, mbx status x%x\n",
10875                                 shdr_status, shdr_add_status, rc);
10876                 mempool_free(mboxq, phba->mbox_mem_pool);
10877                 rc = -ENXIO;
10878                 goto out_error;
10879         }
10880
10881         phba->sli4_hba.fw_func_mode =
10882                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
10883         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
10884         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
10885         phba->sli4_hba.physical_port =
10886                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
10887         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10888                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
10889                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
10890                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
10891
10892         mempool_free(mboxq, phba->mbox_mem_pool);
10893
10894         /*
10895          * Set up HBA Event Queues (EQs)
10896          */
10897         qp = phba->sli4_hba.hdwq;
10898
10899         /* Set up HBA event queue */
10900         if (!qp) {
10901                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10902                                 "3147 Fast-path EQs not allocated\n");
10903                 rc = -ENOMEM;
10904                 goto out_error;
10905         }
10906
10907         /* Loop thru all IRQ vectors */
10908         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
10909                 /* Create HBA Event Queues (EQs) in order */
10910                 for_each_present_cpu(cpu) {
10911                         cpup = &phba->sli4_hba.cpu_map[cpu];
10912
10913                         /* Look for the CPU thats using that vector with
10914                          * LPFC_CPU_FIRST_IRQ set.
10915                          */
10916                         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
10917                                 continue;
10918                         if (qidx != cpup->eq)
10919                                 continue;
10920
10921                         /* Create an EQ for that vector */
10922                         rc = lpfc_eq_create(phba, qp[cpup->hdwq].hba_eq,
10923                                             phba->cfg_fcp_imax);
10924                         if (rc) {
10925                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10926                                                 "0523 Failed setup of fast-path"
10927                                                 " EQ (%d), rc = 0x%x\n",
10928                                                 cpup->eq, (uint32_t)rc);
10929                                 goto out_destroy;
10930                         }
10931
10932                         /* Save the EQ for that vector in the hba_eq_hdl */
10933                         phba->sli4_hba.hba_eq_hdl[cpup->eq].eq =
10934                                 qp[cpup->hdwq].hba_eq;
10935
10936                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10937                                         "2584 HBA EQ setup: queue[%d]-id=%d\n",
10938                                         cpup->eq,
10939                                         qp[cpup->hdwq].hba_eq->queue_id);
10940                 }
10941         }
10942
10943         /* Loop thru all Hardware Queues */
10944         for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
10945                 cpu = lpfc_find_cpu_handle(phba, qidx, LPFC_FIND_BY_HDWQ);
10946                 cpup = &phba->sli4_hba.cpu_map[cpu];
10947
10948                 /* Create the CQ/WQ corresponding to the Hardware Queue */
10949                 rc = lpfc_create_wq_cq(phba,
10950                                        phba->sli4_hba.hdwq[cpup->hdwq].hba_eq,
10951                                        qp[qidx].io_cq,
10952                                        qp[qidx].io_wq,
10953                                        &phba->sli4_hba.hdwq[qidx].io_cq_map,
10954                                        qidx,
10955                                        LPFC_IO);
10956                 if (rc) {
10957                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10958                                         "0535 Failed to setup fastpath "
10959                                         "IO WQ/CQ (%d), rc = 0x%x\n",
10960                                         qidx, (uint32_t)rc);
10961                         goto out_destroy;
10962                 }
10963         }
10964
10965         /*
10966          * Set up Slow Path Complete Queues (CQs)
10967          */
10968
10969         /* Set up slow-path MBOX CQ/MQ */
10970
10971         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
10972                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10973                                 "0528 %s not allocated\n",
10974                                 phba->sli4_hba.mbx_cq ?
10975                                 "Mailbox WQ" : "Mailbox CQ");
10976                 rc = -ENOMEM;
10977                 goto out_destroy;
10978         }
10979
10980         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
10981                                phba->sli4_hba.mbx_cq,
10982                                phba->sli4_hba.mbx_wq,
10983                                NULL, 0, LPFC_MBOX);
10984         if (rc) {
10985                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10986                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
10987                         (uint32_t)rc);
10988                 goto out_destroy;
10989         }
10990         if (phba->nvmet_support) {
10991                 if (!phba->sli4_hba.nvmet_cqset) {
10992                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10993                                         "3165 Fast-path NVME CQ Set "
10994                                         "array not allocated\n");
10995                         rc = -ENOMEM;
10996                         goto out_destroy;
10997                 }
10998                 if (phba->cfg_nvmet_mrq > 1) {
10999                         rc = lpfc_cq_create_set(phba,
11000                                         phba->sli4_hba.nvmet_cqset,
11001                                         qp,
11002                                         LPFC_WCQ, LPFC_NVMET);
11003                         if (rc) {
11004                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11005                                                 "3164 Failed setup of NVME CQ "
11006                                                 "Set, rc = 0x%x\n",
11007                                                 (uint32_t)rc);
11008                                 goto out_destroy;
11009                         }
11010                 } else {
11011                         /* Set up NVMET Receive Complete Queue */
11012                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
11013                                             qp[0].hba_eq,
11014                                             LPFC_WCQ, LPFC_NVMET);
11015                         if (rc) {
11016                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11017                                                 "6089 Failed setup NVMET CQ: "
11018                                                 "rc = 0x%x\n", (uint32_t)rc);
11019                                 goto out_destroy;
11020                         }
11021                         phba->sli4_hba.nvmet_cqset[0]->chann = 0;
11022
11023                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11024                                         "6090 NVMET CQ setup: cq-id=%d, "
11025                                         "parent eq-id=%d\n",
11026                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
11027                                         qp[0].hba_eq->queue_id);
11028                 }
11029         }
11030
11031         /* Set up slow-path ELS WQ/CQ */
11032         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
11033                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11034                                 "0530 ELS %s not allocated\n",
11035                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
11036                 rc = -ENOMEM;
11037                 goto out_destroy;
11038         }
11039         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
11040                                phba->sli4_hba.els_cq,
11041                                phba->sli4_hba.els_wq,
11042                                NULL, 0, LPFC_ELS);
11043         if (rc) {
11044                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11045                                 "0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
11046                                 (uint32_t)rc);
11047                 goto out_destroy;
11048         }
11049         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11050                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
11051                         phba->sli4_hba.els_wq->queue_id,
11052                         phba->sli4_hba.els_cq->queue_id);
11053
11054         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11055                 /* Set up NVME LS Complete Queue */
11056                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
11057                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11058                                         "6091 LS %s not allocated\n",
11059                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
11060                         rc = -ENOMEM;
11061                         goto out_destroy;
11062                 }
11063                 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
11064                                        phba->sli4_hba.nvmels_cq,
11065                                        phba->sli4_hba.nvmels_wq,
11066                                        NULL, 0, LPFC_NVME_LS);
11067                 if (rc) {
11068                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11069                                         "0526 Failed setup of NVVME LS WQ/CQ: "
11070                                         "rc = 0x%x\n", (uint32_t)rc);
11071                         goto out_destroy;
11072                 }
11073
11074                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11075                                 "6096 ELS WQ setup: wq-id=%d, "
11076                                 "parent cq-id=%d\n",
11077                                 phba->sli4_hba.nvmels_wq->queue_id,
11078                                 phba->sli4_hba.nvmels_cq->queue_id);
11079         }
11080
11081         /*
11082          * Create NVMET Receive Queue (RQ)
11083          */
11084         if (phba->nvmet_support) {
11085                 if ((!phba->sli4_hba.nvmet_cqset) ||
11086                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
11087                     (!phba->sli4_hba.nvmet_mrq_data)) {
11088                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11089                                         "6130 MRQ CQ Queues not "
11090                                         "allocated\n");
11091                         rc = -ENOMEM;
11092                         goto out_destroy;
11093                 }
11094                 if (phba->cfg_nvmet_mrq > 1) {
11095                         rc = lpfc_mrq_create(phba,
11096                                              phba->sli4_hba.nvmet_mrq_hdr,
11097                                              phba->sli4_hba.nvmet_mrq_data,
11098                                              phba->sli4_hba.nvmet_cqset,
11099                                              LPFC_NVMET);
11100                         if (rc) {
11101                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11102                                                 "6098 Failed setup of NVMET "
11103                                                 "MRQ: rc = 0x%x\n",
11104                                                 (uint32_t)rc);
11105                                 goto out_destroy;
11106                         }
11107
11108                 } else {
11109                         rc = lpfc_rq_create(phba,
11110                                             phba->sli4_hba.nvmet_mrq_hdr[0],
11111                                             phba->sli4_hba.nvmet_mrq_data[0],
11112                                             phba->sli4_hba.nvmet_cqset[0],
11113                                             LPFC_NVMET);
11114                         if (rc) {
11115                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11116                                                 "6057 Failed setup of NVMET "
11117                                                 "Receive Queue: rc = 0x%x\n",
11118                                                 (uint32_t)rc);
11119                                 goto out_destroy;
11120                         }
11121
11122                         lpfc_printf_log(
11123                                 phba, KERN_INFO, LOG_INIT,
11124                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
11125                                 "dat-rq-id=%d parent cq-id=%d\n",
11126                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
11127                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
11128                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
11129
11130                 }
11131         }
11132
11133         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
11134                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11135                                 "0540 Receive Queue not allocated\n");
11136                 rc = -ENOMEM;
11137                 goto out_destroy;
11138         }
11139
11140         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
11141                             phba->sli4_hba.els_cq, LPFC_USOL);
11142         if (rc) {
11143                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11144                                 "0541 Failed setup of Receive Queue: "
11145                                 "rc = 0x%x\n", (uint32_t)rc);
11146                 goto out_destroy;
11147         }
11148
11149         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11150                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
11151                         "parent cq-id=%d\n",
11152                         phba->sli4_hba.hdr_rq->queue_id,
11153                         phba->sli4_hba.dat_rq->queue_id,
11154                         phba->sli4_hba.els_cq->queue_id);
11155
11156         if (phba->cfg_fcp_imax)
11157                 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
11158         else
11159                 usdelay = 0;
11160
11161         for (qidx = 0; qidx < phba->cfg_irq_chann;
11162              qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
11163                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
11164                                          usdelay);
11165
11166         if (phba->sli4_hba.cq_max) {
11167                 kfree(phba->sli4_hba.cq_lookup);
11168                 phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1),
11169                         sizeof(struct lpfc_queue *), GFP_KERNEL);
11170                 if (!phba->sli4_hba.cq_lookup) {
11171                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11172                                         "0549 Failed setup of CQ Lookup table: "
11173                                         "size 0x%x\n", phba->sli4_hba.cq_max);
11174                         rc = -ENOMEM;
11175                         goto out_destroy;
11176                 }
11177                 lpfc_setup_cq_lookup(phba);
11178         }
11179         return 0;
11180
11181 out_destroy:
11182         lpfc_sli4_queue_unset(phba);
11183 out_error:
11184         return rc;
11185 }
11186
11187 /**
11188  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
11189  * @phba: pointer to lpfc hba data structure.
11190  *
11191  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
11192  * operation.
11193  *
11194  * Return codes
11195  *      0 - successful
11196  *      -ENOMEM - No available memory
11197  *      -EIO - The mailbox failed to complete successfully.
11198  **/
11199 void
11200 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
11201 {
11202         struct lpfc_sli4_hdw_queue *qp;
11203         struct lpfc_queue *eq;
11204         int qidx;
11205
11206         /* Unset mailbox command work queue */
11207         if (phba->sli4_hba.mbx_wq)
11208                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
11209
11210         /* Unset NVME LS work queue */
11211         if (phba->sli4_hba.nvmels_wq)
11212                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
11213
11214         /* Unset ELS work queue */
11215         if (phba->sli4_hba.els_wq)
11216                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
11217
11218         /* Unset unsolicited receive queue */
11219         if (phba->sli4_hba.hdr_rq)
11220                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
11221                                 phba->sli4_hba.dat_rq);
11222
11223         /* Unset mailbox command complete queue */
11224         if (phba->sli4_hba.mbx_cq)
11225                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
11226
11227         /* Unset ELS complete queue */
11228         if (phba->sli4_hba.els_cq)
11229                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
11230
11231         /* Unset NVME LS complete queue */
11232         if (phba->sli4_hba.nvmels_cq)
11233                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
11234
11235         if (phba->nvmet_support) {
11236                 /* Unset NVMET MRQ queue */
11237                 if (phba->sli4_hba.nvmet_mrq_hdr) {
11238                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
11239                                 lpfc_rq_destroy(
11240                                         phba,
11241                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
11242                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
11243                 }
11244
11245                 /* Unset NVMET CQ Set complete queue */
11246                 if (phba->sli4_hba.nvmet_cqset) {
11247                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
11248                                 lpfc_cq_destroy(
11249                                         phba, phba->sli4_hba.nvmet_cqset[qidx]);
11250                 }
11251         }
11252
11253         /* Unset fast-path SLI4 queues */
11254         if (phba->sli4_hba.hdwq) {
11255                 /* Loop thru all Hardware Queues */
11256                 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
11257                         /* Destroy the CQ/WQ corresponding to Hardware Queue */
11258                         qp = &phba->sli4_hba.hdwq[qidx];
11259                         lpfc_wq_destroy(phba, qp->io_wq);
11260                         lpfc_cq_destroy(phba, qp->io_cq);
11261                 }
11262                 /* Loop thru all IRQ vectors */
11263                 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
11264                         /* Destroy the EQ corresponding to the IRQ vector */
11265                         eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
11266                         lpfc_eq_destroy(phba, eq);
11267                 }
11268         }
11269
11270         kfree(phba->sli4_hba.cq_lookup);
11271         phba->sli4_hba.cq_lookup = NULL;
11272         phba->sli4_hba.cq_max = 0;
11273 }
11274
11275 /**
11276  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
11277  * @phba: pointer to lpfc hba data structure.
11278  *
11279  * This routine is invoked to allocate and set up a pool of completion queue
11280  * events. The body of the completion queue event is a completion queue entry
11281  * CQE. For now, this pool is used for the interrupt service routine to queue
11282  * the following HBA completion queue events for the worker thread to process:
11283  *   - Mailbox asynchronous events
11284  *   - Receive queue completion unsolicited events
11285  * Later, this can be used for all the slow-path events.
11286  *
11287  * Return codes
11288  *      0 - successful
11289  *      -ENOMEM - No available memory
11290  **/
11291 static int
11292 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
11293 {
11294         struct lpfc_cq_event *cq_event;
11295         int i;
11296
11297         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
11298                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
11299                 if (!cq_event)
11300                         goto out_pool_create_fail;
11301                 list_add_tail(&cq_event->list,
11302                               &phba->sli4_hba.sp_cqe_event_pool);
11303         }
11304         return 0;
11305
11306 out_pool_create_fail:
11307         lpfc_sli4_cq_event_pool_destroy(phba);
11308         return -ENOMEM;
11309 }
11310
11311 /**
11312  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
11313  * @phba: pointer to lpfc hba data structure.
11314  *
11315  * This routine is invoked to free the pool of completion queue events at
11316  * driver unload time. Note that, it is the responsibility of the driver
11317  * cleanup routine to free all the outstanding completion-queue events
11318  * allocated from this pool back into the pool before invoking this routine
11319  * to destroy the pool.
11320  **/
11321 static void
11322 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
11323 {
11324         struct lpfc_cq_event *cq_event, *next_cq_event;
11325
11326         list_for_each_entry_safe(cq_event, next_cq_event,
11327                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
11328                 list_del(&cq_event->list);
11329                 kfree(cq_event);
11330         }
11331 }
11332
11333 /**
11334  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
11335  * @phba: pointer to lpfc hba data structure.
11336  *
11337  * This routine is the lock free version of the API invoked to allocate a
11338  * completion-queue event from the free pool.
11339  *
11340  * Return: Pointer to the newly allocated completion-queue event if successful
11341  *         NULL otherwise.
11342  **/
11343 struct lpfc_cq_event *
11344 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
11345 {
11346         struct lpfc_cq_event *cq_event = NULL;
11347
11348         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
11349                          struct lpfc_cq_event, list);
11350         return cq_event;
11351 }
11352
11353 /**
11354  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
11355  * @phba: pointer to lpfc hba data structure.
11356  *
11357  * This routine is the lock version of the API invoked to allocate a
11358  * completion-queue event from the free pool.
11359  *
11360  * Return: Pointer to the newly allocated completion-queue event if successful
11361  *         NULL otherwise.
11362  **/
11363 struct lpfc_cq_event *
11364 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
11365 {
11366         struct lpfc_cq_event *cq_event;
11367         unsigned long iflags;
11368
11369         spin_lock_irqsave(&phba->hbalock, iflags);
11370         cq_event = __lpfc_sli4_cq_event_alloc(phba);
11371         spin_unlock_irqrestore(&phba->hbalock, iflags);
11372         return cq_event;
11373 }
11374
11375 /**
11376  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
11377  * @phba: pointer to lpfc hba data structure.
11378  * @cq_event: pointer to the completion queue event to be freed.
11379  *
11380  * This routine is the lock free version of the API invoked to release a
11381  * completion-queue event back into the free pool.
11382  **/
11383 void
11384 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
11385                              struct lpfc_cq_event *cq_event)
11386 {
11387         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
11388 }
11389
11390 /**
11391  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
11392  * @phba: pointer to lpfc hba data structure.
11393  * @cq_event: pointer to the completion queue event to be freed.
11394  *
11395  * This routine is the lock version of the API invoked to release a
11396  * completion-queue event back into the free pool.
11397  **/
11398 void
11399 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
11400                            struct lpfc_cq_event *cq_event)
11401 {
11402         unsigned long iflags;
11403         spin_lock_irqsave(&phba->hbalock, iflags);
11404         __lpfc_sli4_cq_event_release(phba, cq_event);
11405         spin_unlock_irqrestore(&phba->hbalock, iflags);
11406 }
11407
11408 /**
11409  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
11410  * @phba: pointer to lpfc hba data structure.
11411  *
11412  * This routine is to free all the pending completion-queue events to the
11413  * back into the free pool for device reset.
11414  **/
11415 static void
11416 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
11417 {
11418         LIST_HEAD(cq_event_list);
11419         struct lpfc_cq_event *cq_event;
11420         unsigned long iflags;
11421
11422         /* Retrieve all the pending WCQEs from pending WCQE lists */
11423
11424         /* Pending ELS XRI abort events */
11425         spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
11426         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
11427                          &cq_event_list);
11428         spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
11429
11430         /* Pending asynnc events */
11431         spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
11432         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
11433                          &cq_event_list);
11434         spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
11435
11436         while (!list_empty(&cq_event_list)) {
11437                 list_remove_head(&cq_event_list, cq_event,
11438                                  struct lpfc_cq_event, list);
11439                 lpfc_sli4_cq_event_release(phba, cq_event);
11440         }
11441 }
11442
11443 /**
11444  * lpfc_pci_function_reset - Reset pci function.
11445  * @phba: pointer to lpfc hba data structure.
11446  *
11447  * This routine is invoked to request a PCI function reset. It will destroys
11448  * all resources assigned to the PCI function which originates this request.
11449  *
11450  * Return codes
11451  *      0 - successful
11452  *      -ENOMEM - No available memory
11453  *      -EIO - The mailbox failed to complete successfully.
11454  **/
11455 int
11456 lpfc_pci_function_reset(struct lpfc_hba *phba)
11457 {
11458         LPFC_MBOXQ_t *mboxq;
11459         uint32_t rc = 0, if_type;
11460         uint32_t shdr_status, shdr_add_status;
11461         uint32_t rdy_chk;
11462         uint32_t port_reset = 0;
11463         union lpfc_sli4_cfg_shdr *shdr;
11464         struct lpfc_register reg_data;
11465         uint16_t devid;
11466
11467         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11468         switch (if_type) {
11469         case LPFC_SLI_INTF_IF_TYPE_0:
11470                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
11471                                                        GFP_KERNEL);
11472                 if (!mboxq) {
11473                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11474                                         "0494 Unable to allocate memory for "
11475                                         "issuing SLI_FUNCTION_RESET mailbox "
11476                                         "command\n");
11477                         return -ENOMEM;
11478                 }
11479
11480                 /* Setup PCI function reset mailbox-ioctl command */
11481                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
11482                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
11483                                  LPFC_SLI4_MBX_EMBED);
11484                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11485                 shdr = (union lpfc_sli4_cfg_shdr *)
11486                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
11487                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11488                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
11489                                          &shdr->response);
11490                 mempool_free(mboxq, phba->mbox_mem_pool);
11491                 if (shdr_status || shdr_add_status || rc) {
11492                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11493                                         "0495 SLI_FUNCTION_RESET mailbox "
11494                                         "failed with status x%x add_status x%x,"
11495                                         " mbx status x%x\n",
11496                                         shdr_status, shdr_add_status, rc);
11497                         rc = -ENXIO;
11498                 }
11499                 break;
11500         case LPFC_SLI_INTF_IF_TYPE_2:
11501         case LPFC_SLI_INTF_IF_TYPE_6:
11502 wait:
11503                 /*
11504                  * Poll the Port Status Register and wait for RDY for
11505                  * up to 30 seconds. If the port doesn't respond, treat
11506                  * it as an error.
11507                  */
11508                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
11509                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
11510                                 STATUSregaddr, &reg_data.word0)) {
11511                                 rc = -ENODEV;
11512                                 goto out;
11513                         }
11514                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
11515                                 break;
11516                         msleep(20);
11517                 }
11518
11519                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
11520                         phba->work_status[0] = readl(
11521                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
11522                         phba->work_status[1] = readl(
11523                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
11524                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11525                                         "2890 Port not ready, port status reg "
11526                                         "0x%x error 1=0x%x, error 2=0x%x\n",
11527                                         reg_data.word0,
11528                                         phba->work_status[0],
11529                                         phba->work_status[1]);
11530                         rc = -ENODEV;
11531                         goto out;
11532                 }
11533
11534                 if (!port_reset) {
11535                         /*
11536                          * Reset the port now
11537                          */
11538                         reg_data.word0 = 0;
11539                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
11540                                LPFC_SLIPORT_LITTLE_ENDIAN);
11541                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
11542                                LPFC_SLIPORT_INIT_PORT);
11543                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
11544                                CTRLregaddr);
11545                         /* flush */
11546                         pci_read_config_word(phba->pcidev,
11547                                              PCI_DEVICE_ID, &devid);
11548
11549                         port_reset = 1;
11550                         msleep(20);
11551                         goto wait;
11552                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
11553                         rc = -ENODEV;
11554                         goto out;
11555                 }
11556                 break;
11557
11558         case LPFC_SLI_INTF_IF_TYPE_1:
11559         default:
11560                 break;
11561         }
11562
11563 out:
11564         /* Catch the not-ready port failure after a port reset. */
11565         if (rc) {
11566                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11567                                 "3317 HBA not functional: IP Reset Failed "
11568                                 "try: echo fw_reset > board_mode\n");
11569                 rc = -ENODEV;
11570         }
11571
11572         return rc;
11573 }
11574
11575 /**
11576  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
11577  * @phba: pointer to lpfc hba data structure.
11578  *
11579  * This routine is invoked to set up the PCI device memory space for device
11580  * with SLI-4 interface spec.
11581  *
11582  * Return codes
11583  *      0 - successful
11584  *      other values - error
11585  **/
11586 static int
11587 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
11588 {
11589         struct pci_dev *pdev = phba->pcidev;
11590         unsigned long bar0map_len, bar1map_len, bar2map_len;
11591         int error;
11592         uint32_t if_type;
11593
11594         if (!pdev)
11595                 return -ENODEV;
11596
11597         /* Set the device DMA mask size */
11598         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
11599         if (error)
11600                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
11601         if (error)
11602                 return error;
11603
11604         /*
11605          * The BARs and register set definitions and offset locations are
11606          * dependent on the if_type.
11607          */
11608         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
11609                                   &phba->sli4_hba.sli_intf.word0)) {
11610                 return -ENODEV;
11611         }
11612
11613         /* There is no SLI3 failback for SLI4 devices. */
11614         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
11615             LPFC_SLI_INTF_VALID) {
11616                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11617                                 "2894 SLI_INTF reg contents invalid "
11618                                 "sli_intf reg 0x%x\n",
11619                                 phba->sli4_hba.sli_intf.word0);
11620                 return -ENODEV;
11621         }
11622
11623         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11624         /*
11625          * Get the bus address of SLI4 device Bar regions and the
11626          * number of bytes required by each mapping. The mapping of the
11627          * particular PCI BARs regions is dependent on the type of
11628          * SLI4 device.
11629          */
11630         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
11631                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
11632                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
11633
11634                 /*
11635                  * Map SLI4 PCI Config Space Register base to a kernel virtual
11636                  * addr
11637                  */
11638                 phba->sli4_hba.conf_regs_memmap_p =
11639                         ioremap(phba->pci_bar0_map, bar0map_len);
11640                 if (!phba->sli4_hba.conf_regs_memmap_p) {
11641                         dev_printk(KERN_ERR, &pdev->dev,
11642                                    "ioremap failed for SLI4 PCI config "
11643                                    "registers.\n");
11644                         return -ENODEV;
11645                 }
11646                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
11647                 /* Set up BAR0 PCI config space register memory map */
11648                 lpfc_sli4_bar0_register_memmap(phba, if_type);
11649         } else {
11650                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
11651                 bar0map_len = pci_resource_len(pdev, 1);
11652                 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
11653                         dev_printk(KERN_ERR, &pdev->dev,
11654                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
11655                         return -ENODEV;
11656                 }
11657                 phba->sli4_hba.conf_regs_memmap_p =
11658                                 ioremap(phba->pci_bar0_map, bar0map_len);
11659                 if (!phba->sli4_hba.conf_regs_memmap_p) {
11660                         dev_printk(KERN_ERR, &pdev->dev,
11661                                 "ioremap failed for SLI4 PCI config "
11662                                 "registers.\n");
11663                         return -ENODEV;
11664                 }
11665                 lpfc_sli4_bar0_register_memmap(phba, if_type);
11666         }
11667
11668         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
11669                 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
11670                         /*
11671                          * Map SLI4 if type 0 HBA Control Register base to a
11672                          * kernel virtual address and setup the registers.
11673                          */
11674                         phba->pci_bar1_map = pci_resource_start(pdev,
11675                                                                 PCI_64BIT_BAR2);
11676                         bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
11677                         phba->sli4_hba.ctrl_regs_memmap_p =
11678                                         ioremap(phba->pci_bar1_map,
11679                                                 bar1map_len);
11680                         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
11681                                 dev_err(&pdev->dev,
11682                                            "ioremap failed for SLI4 HBA "
11683                                             "control registers.\n");
11684                                 error = -ENOMEM;
11685                                 goto out_iounmap_conf;
11686                         }
11687                         phba->pci_bar2_memmap_p =
11688                                          phba->sli4_hba.ctrl_regs_memmap_p;
11689                         lpfc_sli4_bar1_register_memmap(phba, if_type);
11690                 } else {
11691                         error = -ENOMEM;
11692                         goto out_iounmap_conf;
11693                 }
11694         }
11695
11696         if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
11697             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
11698                 /*
11699                  * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
11700                  * virtual address and setup the registers.
11701                  */
11702                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
11703                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
11704                 phba->sli4_hba.drbl_regs_memmap_p =
11705                                 ioremap(phba->pci_bar1_map, bar1map_len);
11706                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
11707                         dev_err(&pdev->dev,
11708                            "ioremap failed for SLI4 HBA doorbell registers.\n");
11709                         error = -ENOMEM;
11710                         goto out_iounmap_conf;
11711                 }
11712                 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
11713                 lpfc_sli4_bar1_register_memmap(phba, if_type);
11714         }
11715
11716         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
11717                 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
11718                         /*
11719                          * Map SLI4 if type 0 HBA Doorbell Register base to
11720                          * a kernel virtual address and setup the registers.
11721                          */
11722                         phba->pci_bar2_map = pci_resource_start(pdev,
11723                                                                 PCI_64BIT_BAR4);
11724                         bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
11725                         phba->sli4_hba.drbl_regs_memmap_p =
11726                                         ioremap(phba->pci_bar2_map,
11727                                                 bar2map_len);
11728                         if (!phba->sli4_hba.drbl_regs_memmap_p) {
11729                                 dev_err(&pdev->dev,
11730                                            "ioremap failed for SLI4 HBA"
11731                                            " doorbell registers.\n");
11732                                 error = -ENOMEM;
11733                                 goto out_iounmap_ctrl;
11734                         }
11735                         phba->pci_bar4_memmap_p =
11736                                         phba->sli4_hba.drbl_regs_memmap_p;
11737                         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
11738                         if (error)
11739                                 goto out_iounmap_all;
11740                 } else {
11741                         error = -ENOMEM;
11742                         goto out_iounmap_all;
11743                 }
11744         }
11745
11746         if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
11747             pci_resource_start(pdev, PCI_64BIT_BAR4)) {
11748                 /*
11749                  * Map SLI4 if type 6 HBA DPP Register base to a kernel
11750                  * virtual address and setup the registers.
11751                  */
11752                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
11753                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
11754                 phba->sli4_hba.dpp_regs_memmap_p =
11755                                 ioremap(phba->pci_bar2_map, bar2map_len);
11756                 if (!phba->sli4_hba.dpp_regs_memmap_p) {
11757                         dev_err(&pdev->dev,
11758                            "ioremap failed for SLI4 HBA dpp registers.\n");
11759                         error = -ENOMEM;
11760                         goto out_iounmap_ctrl;
11761                 }
11762                 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
11763         }
11764
11765         /* Set up the EQ/CQ register handeling functions now */
11766         switch (if_type) {
11767         case LPFC_SLI_INTF_IF_TYPE_0:
11768         case LPFC_SLI_INTF_IF_TYPE_2:
11769                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
11770                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
11771                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
11772                 break;
11773         case LPFC_SLI_INTF_IF_TYPE_6:
11774                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
11775                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
11776                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
11777                 break;
11778         default:
11779                 break;
11780         }
11781
11782         return 0;
11783
11784 out_iounmap_all:
11785         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
11786 out_iounmap_ctrl:
11787         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
11788 out_iounmap_conf:
11789         iounmap(phba->sli4_hba.conf_regs_memmap_p);
11790
11791         return error;
11792 }
11793
11794 /**
11795  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
11796  * @phba: pointer to lpfc hba data structure.
11797  *
11798  * This routine is invoked to unset the PCI device memory space for device
11799  * with SLI-4 interface spec.
11800  **/
11801 static void
11802 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
11803 {
11804         uint32_t if_type;
11805         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11806
11807         switch (if_type) {
11808         case LPFC_SLI_INTF_IF_TYPE_0:
11809                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
11810                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
11811                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
11812                 break;
11813         case LPFC_SLI_INTF_IF_TYPE_2:
11814                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
11815                 break;
11816         case LPFC_SLI_INTF_IF_TYPE_6:
11817                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
11818                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
11819                 if (phba->sli4_hba.dpp_regs_memmap_p)
11820                         iounmap(phba->sli4_hba.dpp_regs_memmap_p);
11821                 break;
11822         case LPFC_SLI_INTF_IF_TYPE_1:
11823         default:
11824                 dev_printk(KERN_ERR, &phba->pcidev->dev,
11825                            "FATAL - unsupported SLI4 interface type - %d\n",
11826                            if_type);
11827                 break;
11828         }
11829 }
11830
11831 /**
11832  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
11833  * @phba: pointer to lpfc hba data structure.
11834  *
11835  * This routine is invoked to enable the MSI-X interrupt vectors to device
11836  * with SLI-3 interface specs.
11837  *
11838  * Return codes
11839  *   0 - successful
11840  *   other values - error
11841  **/
11842 static int
11843 lpfc_sli_enable_msix(struct lpfc_hba *phba)
11844 {
11845         int rc;
11846         LPFC_MBOXQ_t *pmb;
11847
11848         /* Set up MSI-X multi-message vectors */
11849         rc = pci_alloc_irq_vectors(phba->pcidev,
11850                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
11851         if (rc < 0) {
11852                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11853                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
11854                 goto vec_fail_out;
11855         }
11856
11857         /*
11858          * Assign MSI-X vectors to interrupt handlers
11859          */
11860
11861         /* vector-0 is associated to slow-path handler */
11862         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
11863                          &lpfc_sli_sp_intr_handler, 0,
11864                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
11865         if (rc) {
11866                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11867                                 "0421 MSI-X slow-path request_irq failed "
11868                                 "(%d)\n", rc);
11869                 goto msi_fail_out;
11870         }
11871
11872         /* vector-1 is associated to fast-path handler */
11873         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
11874                          &lpfc_sli_fp_intr_handler, 0,
11875                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
11876
11877         if (rc) {
11878                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11879                                 "0429 MSI-X fast-path request_irq failed "
11880                                 "(%d)\n", rc);
11881                 goto irq_fail_out;
11882         }
11883
11884         /*
11885          * Configure HBA MSI-X attention conditions to messages
11886          */
11887         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11888
11889         if (!pmb) {
11890                 rc = -ENOMEM;
11891                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11892                                 "0474 Unable to allocate memory for issuing "
11893                                 "MBOX_CONFIG_MSI command\n");
11894                 goto mem_fail_out;
11895         }
11896         rc = lpfc_config_msi(phba, pmb);
11897         if (rc)
11898                 goto mbx_fail_out;
11899         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
11900         if (rc != MBX_SUCCESS) {
11901                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
11902                                 "0351 Config MSI mailbox command failed, "
11903                                 "mbxCmd x%x, mbxStatus x%x\n",
11904                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
11905                 goto mbx_fail_out;
11906         }
11907
11908         /* Free memory allocated for mailbox command */
11909         mempool_free(pmb, phba->mbox_mem_pool);
11910         return rc;
11911
11912 mbx_fail_out:
11913         /* Free memory allocated for mailbox command */
11914         mempool_free(pmb, phba->mbox_mem_pool);
11915
11916 mem_fail_out:
11917         /* free the irq already requested */
11918         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
11919
11920 irq_fail_out:
11921         /* free the irq already requested */
11922         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
11923
11924 msi_fail_out:
11925         /* Unconfigure MSI-X capability structure */
11926         pci_free_irq_vectors(phba->pcidev);
11927
11928 vec_fail_out:
11929         return rc;
11930 }
11931
11932 /**
11933  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
11934  * @phba: pointer to lpfc hba data structure.
11935  *
11936  * This routine is invoked to enable the MSI interrupt mode to device with
11937  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
11938  * enable the MSI vector. The device driver is responsible for calling the
11939  * request_irq() to register MSI vector with a interrupt the handler, which
11940  * is done in this function.
11941  *
11942  * Return codes
11943  *      0 - successful
11944  *      other values - error
11945  */
11946 static int
11947 lpfc_sli_enable_msi(struct lpfc_hba *phba)
11948 {
11949         int rc;
11950
11951         rc = pci_enable_msi(phba->pcidev);
11952         if (!rc)
11953                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11954                                 "0462 PCI enable MSI mode success.\n");
11955         else {
11956                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11957                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
11958                 return rc;
11959         }
11960
11961         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
11962                          0, LPFC_DRIVER_NAME, phba);
11963         if (rc) {
11964                 pci_disable_msi(phba->pcidev);
11965                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11966                                 "0478 MSI request_irq failed (%d)\n", rc);
11967         }
11968         return rc;
11969 }
11970
11971 /**
11972  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
11973  * @phba: pointer to lpfc hba data structure.
11974  * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
11975  *
11976  * This routine is invoked to enable device interrupt and associate driver's
11977  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
11978  * spec. Depends on the interrupt mode configured to the driver, the driver
11979  * will try to fallback from the configured interrupt mode to an interrupt
11980  * mode which is supported by the platform, kernel, and device in the order
11981  * of:
11982  * MSI-X -> MSI -> IRQ.
11983  *
11984  * Return codes
11985  *   0 - successful
11986  *   other values - error
11987  **/
11988 static uint32_t
11989 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
11990 {
11991         uint32_t intr_mode = LPFC_INTR_ERROR;
11992         int retval;
11993
11994         /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
11995         retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
11996         if (retval)
11997                 return intr_mode;
11998         phba->hba_flag &= ~HBA_NEEDS_CFG_PORT;
11999
12000         if (cfg_mode == 2) {
12001                 /* Now, try to enable MSI-X interrupt mode */
12002                 retval = lpfc_sli_enable_msix(phba);
12003                 if (!retval) {
12004                         /* Indicate initialization to MSI-X mode */
12005                         phba->intr_type = MSIX;
12006                         intr_mode = 2;
12007                 }
12008         }
12009
12010         /* Fallback to MSI if MSI-X initialization failed */
12011         if (cfg_mode >= 1 && phba->intr_type == NONE) {
12012                 retval = lpfc_sli_enable_msi(phba);
12013                 if (!retval) {
12014                         /* Indicate initialization to MSI mode */
12015                         phba->intr_type = MSI;
12016                         intr_mode = 1;
12017                 }
12018         }
12019
12020         /* Fallback to INTx if both MSI-X/MSI initalization failed */
12021         if (phba->intr_type == NONE) {
12022                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
12023                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
12024                 if (!retval) {
12025                         /* Indicate initialization to INTx mode */
12026                         phba->intr_type = INTx;
12027                         intr_mode = 0;
12028                 }
12029         }
12030         return intr_mode;
12031 }
12032
12033 /**
12034  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
12035  * @phba: pointer to lpfc hba data structure.
12036  *
12037  * This routine is invoked to disable device interrupt and disassociate the
12038  * driver's interrupt handler(s) from interrupt vector(s) to device with
12039  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
12040  * release the interrupt vector(s) for the message signaled interrupt.
12041  **/
12042 static void
12043 lpfc_sli_disable_intr(struct lpfc_hba *phba)
12044 {
12045         int nr_irqs, i;
12046
12047         if (phba->intr_type == MSIX)
12048                 nr_irqs = LPFC_MSIX_VECTORS;
12049         else
12050                 nr_irqs = 1;
12051
12052         for (i = 0; i < nr_irqs; i++)
12053                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
12054         pci_free_irq_vectors(phba->pcidev);
12055
12056         /* Reset interrupt management states */
12057         phba->intr_type = NONE;
12058         phba->sli.slistat.sli_intr = 0;
12059 }
12060
12061 /**
12062  * lpfc_find_cpu_handle - Find the CPU that corresponds to the specified Queue
12063  * @phba: pointer to lpfc hba data structure.
12064  * @id: EQ vector index or Hardware Queue index
12065  * @match: LPFC_FIND_BY_EQ = match by EQ
12066  *         LPFC_FIND_BY_HDWQ = match by Hardware Queue
12067  * Return the CPU that matches the selection criteria
12068  */
12069 static uint16_t
12070 lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
12071 {
12072         struct lpfc_vector_map_info *cpup;
12073         int cpu;
12074
12075         /* Loop through all CPUs */
12076         for_each_present_cpu(cpu) {
12077                 cpup = &phba->sli4_hba.cpu_map[cpu];
12078
12079                 /* If we are matching by EQ, there may be multiple CPUs using
12080                  * using the same vector, so select the one with
12081                  * LPFC_CPU_FIRST_IRQ set.
12082                  */
12083                 if ((match == LPFC_FIND_BY_EQ) &&
12084                     (cpup->flag & LPFC_CPU_FIRST_IRQ) &&
12085                     (cpup->eq == id))
12086                         return cpu;
12087
12088                 /* If matching by HDWQ, select the first CPU that matches */
12089                 if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
12090                         return cpu;
12091         }
12092         return 0;
12093 }
12094
12095 #ifdef CONFIG_X86
12096 /**
12097  * lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
12098  * @phba: pointer to lpfc hba data structure.
12099  * @cpu: CPU map index
12100  * @phys_id: CPU package physical id
12101  * @core_id: CPU core id
12102  */
12103 static int
12104 lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
12105                 uint16_t phys_id, uint16_t core_id)
12106 {
12107         struct lpfc_vector_map_info *cpup;
12108         int idx;
12109
12110         for_each_present_cpu(idx) {
12111                 cpup = &phba->sli4_hba.cpu_map[idx];
12112                 /* Does the cpup match the one we are looking for */
12113                 if ((cpup->phys_id == phys_id) &&
12114                     (cpup->core_id == core_id) &&
12115                     (cpu != idx))
12116                         return 1;
12117         }
12118         return 0;
12119 }
12120 #endif
12121
12122 /*
12123  * lpfc_assign_eq_map_info - Assigns eq for vector_map structure
12124  * @phba: pointer to lpfc hba data structure.
12125  * @eqidx: index for eq and irq vector
12126  * @flag: flags to set for vector_map structure
12127  * @cpu: cpu used to index vector_map structure
12128  *
12129  * The routine assigns eq info into vector_map structure
12130  */
12131 static inline void
12132 lpfc_assign_eq_map_info(struct lpfc_hba *phba, uint16_t eqidx, uint16_t flag,
12133                         unsigned int cpu)
12134 {
12135         struct lpfc_vector_map_info *cpup = &phba->sli4_hba.cpu_map[cpu];
12136         struct lpfc_hba_eq_hdl *eqhdl = lpfc_get_eq_hdl(eqidx);
12137
12138         cpup->eq = eqidx;
12139         cpup->flag |= flag;
12140
12141         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12142                         "3336 Set Affinity: CPU %d irq %d eq %d flag x%x\n",
12143                         cpu, eqhdl->irq, cpup->eq, cpup->flag);
12144 }
12145
12146 /**
12147  * lpfc_cpu_map_array_init - Initialize cpu_map structure
12148  * @phba: pointer to lpfc hba data structure.
12149  *
12150  * The routine initializes the cpu_map array structure
12151  */
12152 static void
12153 lpfc_cpu_map_array_init(struct lpfc_hba *phba)
12154 {
12155         struct lpfc_vector_map_info *cpup;
12156         struct lpfc_eq_intr_info *eqi;
12157         int cpu;
12158
12159         for_each_possible_cpu(cpu) {
12160                 cpup = &phba->sli4_hba.cpu_map[cpu];
12161                 cpup->phys_id = LPFC_VECTOR_MAP_EMPTY;
12162                 cpup->core_id = LPFC_VECTOR_MAP_EMPTY;
12163                 cpup->hdwq = LPFC_VECTOR_MAP_EMPTY;
12164                 cpup->eq = LPFC_VECTOR_MAP_EMPTY;
12165                 cpup->flag = 0;
12166                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, cpu);
12167                 INIT_LIST_HEAD(&eqi->list);
12168                 eqi->icnt = 0;
12169         }
12170 }
12171
12172 /**
12173  * lpfc_hba_eq_hdl_array_init - Initialize hba_eq_hdl structure
12174  * @phba: pointer to lpfc hba data structure.
12175  *
12176  * The routine initializes the hba_eq_hdl array structure
12177  */
12178 static void
12179 lpfc_hba_eq_hdl_array_init(struct lpfc_hba *phba)
12180 {
12181         struct lpfc_hba_eq_hdl *eqhdl;
12182         int i;
12183
12184         for (i = 0; i < phba->cfg_irq_chann; i++) {
12185                 eqhdl = lpfc_get_eq_hdl(i);
12186                 eqhdl->irq = LPFC_VECTOR_MAP_EMPTY;
12187                 eqhdl->phba = phba;
12188         }
12189 }
12190
12191 /**
12192  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
12193  * @phba: pointer to lpfc hba data structure.
12194  * @vectors: number of msix vectors allocated.
12195  *
12196  * The routine will figure out the CPU affinity assignment for every
12197  * MSI-X vector allocated for the HBA.
12198  * In addition, the CPU to IO channel mapping will be calculated
12199  * and the phba->sli4_hba.cpu_map array will reflect this.
12200  */
12201 static void
12202 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
12203 {
12204         int i, cpu, idx, next_idx, new_cpu, start_cpu, first_cpu;
12205         int max_phys_id, min_phys_id;
12206         int max_core_id, min_core_id;
12207         struct lpfc_vector_map_info *cpup;
12208         struct lpfc_vector_map_info *new_cpup;
12209 #ifdef CONFIG_X86
12210         struct cpuinfo_x86 *cpuinfo;
12211 #endif
12212 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12213         struct lpfc_hdwq_stat *c_stat;
12214 #endif
12215
12216         max_phys_id = 0;
12217         min_phys_id = LPFC_VECTOR_MAP_EMPTY;
12218         max_core_id = 0;
12219         min_core_id = LPFC_VECTOR_MAP_EMPTY;
12220
12221         /* Update CPU map with physical id and core id of each CPU */
12222         for_each_present_cpu(cpu) {
12223                 cpup = &phba->sli4_hba.cpu_map[cpu];
12224 #ifdef CONFIG_X86
12225                 cpuinfo = &cpu_data(cpu);
12226                 cpup->phys_id = cpuinfo->phys_proc_id;
12227                 cpup->core_id = cpuinfo->cpu_core_id;
12228                 if (lpfc_find_hyper(phba, cpu, cpup->phys_id, cpup->core_id))
12229                         cpup->flag |= LPFC_CPU_MAP_HYPER;
12230 #else
12231                 /* No distinction between CPUs for other platforms */
12232                 cpup->phys_id = 0;
12233                 cpup->core_id = cpu;
12234 #endif
12235
12236                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12237                                 "3328 CPU %d physid %d coreid %d flag x%x\n",
12238                                 cpu, cpup->phys_id, cpup->core_id, cpup->flag);
12239
12240                 if (cpup->phys_id > max_phys_id)
12241                         max_phys_id = cpup->phys_id;
12242                 if (cpup->phys_id < min_phys_id)
12243                         min_phys_id = cpup->phys_id;
12244
12245                 if (cpup->core_id > max_core_id)
12246                         max_core_id = cpup->core_id;
12247                 if (cpup->core_id < min_core_id)
12248                         min_core_id = cpup->core_id;
12249         }
12250
12251         /* After looking at each irq vector assigned to this pcidev, its
12252          * possible to see that not ALL CPUs have been accounted for.
12253          * Next we will set any unassigned (unaffinitized) cpu map
12254          * entries to a IRQ on the same phys_id.
12255          */
12256         first_cpu = cpumask_first(cpu_present_mask);
12257         start_cpu = first_cpu;
12258
12259         for_each_present_cpu(cpu) {
12260                 cpup = &phba->sli4_hba.cpu_map[cpu];
12261
12262                 /* Is this CPU entry unassigned */
12263                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
12264                         /* Mark CPU as IRQ not assigned by the kernel */
12265                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
12266
12267                         /* If so, find a new_cpup thats on the the SAME
12268                          * phys_id as cpup. start_cpu will start where we
12269                          * left off so all unassigned entries don't get assgined
12270                          * the IRQ of the first entry.
12271                          */
12272                         new_cpu = start_cpu;
12273                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12274                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12275                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
12276                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY) &&
12277                                     (new_cpup->phys_id == cpup->phys_id))
12278                                         goto found_same;
12279                                 new_cpu = cpumask_next(
12280                                         new_cpu, cpu_present_mask);
12281                                 if (new_cpu == nr_cpumask_bits)
12282                                         new_cpu = first_cpu;
12283                         }
12284                         /* At this point, we leave the CPU as unassigned */
12285                         continue;
12286 found_same:
12287                         /* We found a matching phys_id, so copy the IRQ info */
12288                         cpup->eq = new_cpup->eq;
12289
12290                         /* Bump start_cpu to the next slot to minmize the
12291                          * chance of having multiple unassigned CPU entries
12292                          * selecting the same IRQ.
12293                          */
12294                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
12295                         if (start_cpu == nr_cpumask_bits)
12296                                 start_cpu = first_cpu;
12297
12298                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12299                                         "3337 Set Affinity: CPU %d "
12300                                         "eq %d from peer cpu %d same "
12301                                         "phys_id (%d)\n",
12302                                         cpu, cpup->eq, new_cpu,
12303                                         cpup->phys_id);
12304                 }
12305         }
12306
12307         /* Set any unassigned cpu map entries to a IRQ on any phys_id */
12308         start_cpu = first_cpu;
12309
12310         for_each_present_cpu(cpu) {
12311                 cpup = &phba->sli4_hba.cpu_map[cpu];
12312
12313                 /* Is this entry unassigned */
12314                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
12315                         /* Mark it as IRQ not assigned by the kernel */
12316                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
12317
12318                         /* If so, find a new_cpup thats on ANY phys_id
12319                          * as the cpup. start_cpu will start where we
12320                          * left off so all unassigned entries don't get
12321                          * assigned the IRQ of the first entry.
12322                          */
12323                         new_cpu = start_cpu;
12324                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12325                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12326                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
12327                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY))
12328                                         goto found_any;
12329                                 new_cpu = cpumask_next(
12330                                         new_cpu, cpu_present_mask);
12331                                 if (new_cpu == nr_cpumask_bits)
12332                                         new_cpu = first_cpu;
12333                         }
12334                         /* We should never leave an entry unassigned */
12335                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12336                                         "3339 Set Affinity: CPU %d "
12337                                         "eq %d UNASSIGNED\n",
12338                                         cpup->hdwq, cpup->eq);
12339                         continue;
12340 found_any:
12341                         /* We found an available entry, copy the IRQ info */
12342                         cpup->eq = new_cpup->eq;
12343
12344                         /* Bump start_cpu to the next slot to minmize the
12345                          * chance of having multiple unassigned CPU entries
12346                          * selecting the same IRQ.
12347                          */
12348                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
12349                         if (start_cpu == nr_cpumask_bits)
12350                                 start_cpu = first_cpu;
12351
12352                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12353                                         "3338 Set Affinity: CPU %d "
12354                                         "eq %d from peer cpu %d (%d/%d)\n",
12355                                         cpu, cpup->eq, new_cpu,
12356                                         new_cpup->phys_id, new_cpup->core_id);
12357                 }
12358         }
12359
12360         /* Assign hdwq indices that are unique across all cpus in the map
12361          * that are also FIRST_CPUs.
12362          */
12363         idx = 0;
12364         for_each_present_cpu(cpu) {
12365                 cpup = &phba->sli4_hba.cpu_map[cpu];
12366
12367                 /* Only FIRST IRQs get a hdwq index assignment. */
12368                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
12369                         continue;
12370
12371                 /* 1 to 1, the first LPFC_CPU_FIRST_IRQ cpus to a unique hdwq */
12372                 cpup->hdwq = idx;
12373                 idx++;
12374                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12375                                 "3333 Set Affinity: CPU %d (phys %d core %d): "
12376                                 "hdwq %d eq %d flg x%x\n",
12377                                 cpu, cpup->phys_id, cpup->core_id,
12378                                 cpup->hdwq, cpup->eq, cpup->flag);
12379         }
12380         /* Associate a hdwq with each cpu_map entry
12381          * This will be 1 to 1 - hdwq to cpu, unless there are less
12382          * hardware queues then CPUs. For that case we will just round-robin
12383          * the available hardware queues as they get assigned to CPUs.
12384          * The next_idx is the idx from the FIRST_CPU loop above to account
12385          * for irq_chann < hdwq.  The idx is used for round-robin assignments
12386          * and needs to start at 0.
12387          */
12388         next_idx = idx;
12389         start_cpu = 0;
12390         idx = 0;
12391         for_each_present_cpu(cpu) {
12392                 cpup = &phba->sli4_hba.cpu_map[cpu];
12393
12394                 /* FIRST cpus are already mapped. */
12395                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
12396                         continue;
12397
12398                 /* If the cfg_irq_chann < cfg_hdw_queue, set the hdwq
12399                  * of the unassigned cpus to the next idx so that all
12400                  * hdw queues are fully utilized.
12401                  */
12402                 if (next_idx < phba->cfg_hdw_queue) {
12403                         cpup->hdwq = next_idx;
12404                         next_idx++;
12405                         continue;
12406                 }
12407
12408                 /* Not a First CPU and all hdw_queues are used.  Reuse a
12409                  * Hardware Queue for another CPU, so be smart about it
12410                  * and pick one that has its IRQ/EQ mapped to the same phys_id
12411                  * (CPU package) and core_id.
12412                  */
12413                 new_cpu = start_cpu;
12414                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12415                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12416                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
12417                             new_cpup->phys_id == cpup->phys_id &&
12418                             new_cpup->core_id == cpup->core_id) {
12419                                 goto found_hdwq;
12420                         }
12421                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
12422                         if (new_cpu == nr_cpumask_bits)
12423                                 new_cpu = first_cpu;
12424                 }
12425
12426                 /* If we can't match both phys_id and core_id,
12427                  * settle for just a phys_id match.
12428                  */
12429                 new_cpu = start_cpu;
12430                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12431                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12432                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
12433                             new_cpup->phys_id == cpup->phys_id)
12434                                 goto found_hdwq;
12435
12436                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
12437                         if (new_cpu == nr_cpumask_bits)
12438                                 new_cpu = first_cpu;
12439                 }
12440
12441                 /* Otherwise just round robin on cfg_hdw_queue */
12442                 cpup->hdwq = idx % phba->cfg_hdw_queue;
12443                 idx++;
12444                 goto logit;
12445  found_hdwq:
12446                 /* We found an available entry, copy the IRQ info */
12447                 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
12448                 if (start_cpu == nr_cpumask_bits)
12449                         start_cpu = first_cpu;
12450                 cpup->hdwq = new_cpup->hdwq;
12451  logit:
12452                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12453                                 "3335 Set Affinity: CPU %d (phys %d core %d): "
12454                                 "hdwq %d eq %d flg x%x\n",
12455                                 cpu, cpup->phys_id, cpup->core_id,
12456                                 cpup->hdwq, cpup->eq, cpup->flag);
12457         }
12458
12459         /*
12460          * Initialize the cpu_map slots for not-present cpus in case
12461          * a cpu is hot-added. Perform a simple hdwq round robin assignment.
12462          */
12463         idx = 0;
12464         for_each_possible_cpu(cpu) {
12465                 cpup = &phba->sli4_hba.cpu_map[cpu];
12466 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12467                 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, cpu);
12468                 c_stat->hdwq_no = cpup->hdwq;
12469 #endif
12470                 if (cpup->hdwq != LPFC_VECTOR_MAP_EMPTY)
12471                         continue;
12472
12473                 cpup->hdwq = idx++ % phba->cfg_hdw_queue;
12474 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12475                 c_stat->hdwq_no = cpup->hdwq;
12476 #endif
12477                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12478                                 "3340 Set Affinity: not present "
12479                                 "CPU %d hdwq %d\n",
12480                                 cpu, cpup->hdwq);
12481         }
12482
12483         /* The cpu_map array will be used later during initialization
12484          * when EQ / CQ / WQs are allocated and configured.
12485          */
12486         return;
12487 }
12488
12489 /**
12490  * lpfc_cpuhp_get_eq
12491  *
12492  * @phba:   pointer to lpfc hba data structure.
12493  * @cpu:    cpu going offline
12494  * @eqlist: eq list to append to
12495  */
12496 static int
12497 lpfc_cpuhp_get_eq(struct lpfc_hba *phba, unsigned int cpu,
12498                   struct list_head *eqlist)
12499 {
12500         const struct cpumask *maskp;
12501         struct lpfc_queue *eq;
12502         struct cpumask *tmp;
12503         u16 idx;
12504
12505         tmp = kzalloc(cpumask_size(), GFP_KERNEL);
12506         if (!tmp)
12507                 return -ENOMEM;
12508
12509         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
12510                 maskp = pci_irq_get_affinity(phba->pcidev, idx);
12511                 if (!maskp)
12512                         continue;
12513                 /*
12514                  * if irq is not affinitized to the cpu going
12515                  * then we don't need to poll the eq attached
12516                  * to it.
12517                  */
12518                 if (!cpumask_and(tmp, maskp, cpumask_of(cpu)))
12519                         continue;
12520                 /* get the cpus that are online and are affini-
12521                  * tized to this irq vector.  If the count is
12522                  * more than 1 then cpuhp is not going to shut-
12523                  * down this vector.  Since this cpu has not
12524                  * gone offline yet, we need >1.
12525                  */
12526                 cpumask_and(tmp, maskp, cpu_online_mask);
12527                 if (cpumask_weight(tmp) > 1)
12528                         continue;
12529
12530                 /* Now that we have an irq to shutdown, get the eq
12531                  * mapped to this irq.  Note: multiple hdwq's in
12532                  * the software can share an eq, but eventually
12533                  * only eq will be mapped to this vector
12534                  */
12535                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
12536                 list_add(&eq->_poll_list, eqlist);
12537         }
12538         kfree(tmp);
12539         return 0;
12540 }
12541
12542 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba)
12543 {
12544         if (phba->sli_rev != LPFC_SLI_REV4)
12545                 return;
12546
12547         cpuhp_state_remove_instance_nocalls(lpfc_cpuhp_state,
12548                                             &phba->cpuhp);
12549         /*
12550          * unregistering the instance doesn't stop the polling
12551          * timer. Wait for the poll timer to retire.
12552          */
12553         synchronize_rcu();
12554         del_timer_sync(&phba->cpuhp_poll_timer);
12555 }
12556
12557 static void lpfc_cpuhp_remove(struct lpfc_hba *phba)
12558 {
12559         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
12560                 return;
12561
12562         __lpfc_cpuhp_remove(phba);
12563 }
12564
12565 static void lpfc_cpuhp_add(struct lpfc_hba *phba)
12566 {
12567         if (phba->sli_rev != LPFC_SLI_REV4)
12568                 return;
12569
12570         rcu_read_lock();
12571
12572         if (!list_empty(&phba->poll_list))
12573                 mod_timer(&phba->cpuhp_poll_timer,
12574                           jiffies + msecs_to_jiffies(LPFC_POLL_HB));
12575
12576         rcu_read_unlock();
12577
12578         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state,
12579                                          &phba->cpuhp);
12580 }
12581
12582 static int __lpfc_cpuhp_checks(struct lpfc_hba *phba, int *retval)
12583 {
12584         if (phba->pport->load_flag & FC_UNLOADING) {
12585                 *retval = -EAGAIN;
12586                 return true;
12587         }
12588
12589         if (phba->sli_rev != LPFC_SLI_REV4) {
12590                 *retval = 0;
12591                 return true;
12592         }
12593
12594         /* proceed with the hotplug */
12595         return false;
12596 }
12597
12598 /**
12599  * lpfc_irq_set_aff - set IRQ affinity
12600  * @eqhdl: EQ handle
12601  * @cpu: cpu to set affinity
12602  *
12603  **/
12604 static inline void
12605 lpfc_irq_set_aff(struct lpfc_hba_eq_hdl *eqhdl, unsigned int cpu)
12606 {
12607         cpumask_clear(&eqhdl->aff_mask);
12608         cpumask_set_cpu(cpu, &eqhdl->aff_mask);
12609         irq_set_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
12610         irq_set_affinity_hint(eqhdl->irq, &eqhdl->aff_mask);
12611 }
12612
12613 /**
12614  * lpfc_irq_clear_aff - clear IRQ affinity
12615  * @eqhdl: EQ handle
12616  *
12617  **/
12618 static inline void
12619 lpfc_irq_clear_aff(struct lpfc_hba_eq_hdl *eqhdl)
12620 {
12621         cpumask_clear(&eqhdl->aff_mask);
12622         irq_clear_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
12623 }
12624
12625 /**
12626  * lpfc_irq_rebalance - rebalances IRQ affinity according to cpuhp event
12627  * @phba: pointer to HBA context object.
12628  * @cpu: cpu going offline/online
12629  * @offline: true, cpu is going offline. false, cpu is coming online.
12630  *
12631  * If cpu is going offline, we'll try our best effort to find the next
12632  * online cpu on the phba's original_mask and migrate all offlining IRQ
12633  * affinities.
12634  *
12635  * If cpu is coming online, reaffinitize the IRQ back to the onlining cpu.
12636  *
12637  * Note: Call only if NUMA or NHT mode is enabled, otherwise rely on
12638  *       PCI_IRQ_AFFINITY to auto-manage IRQ affinity.
12639  *
12640  **/
12641 static void
12642 lpfc_irq_rebalance(struct lpfc_hba *phba, unsigned int cpu, bool offline)
12643 {
12644         struct lpfc_vector_map_info *cpup;
12645         struct cpumask *aff_mask;
12646         unsigned int cpu_select, cpu_next, idx;
12647         const struct cpumask *orig_mask;
12648
12649         if (phba->irq_chann_mode == NORMAL_MODE)
12650                 return;
12651
12652         orig_mask = &phba->sli4_hba.irq_aff_mask;
12653
12654         if (!cpumask_test_cpu(cpu, orig_mask))
12655                 return;
12656
12657         cpup = &phba->sli4_hba.cpu_map[cpu];
12658
12659         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
12660                 return;
12661
12662         if (offline) {
12663                 /* Find next online CPU on original mask */
12664                 cpu_next = cpumask_next_wrap(cpu, orig_mask, cpu, true);
12665                 cpu_select = lpfc_next_online_cpu(orig_mask, cpu_next);
12666
12667                 /* Found a valid CPU */
12668                 if ((cpu_select < nr_cpu_ids) && (cpu_select != cpu)) {
12669                         /* Go through each eqhdl and ensure offlining
12670                          * cpu aff_mask is migrated
12671                          */
12672                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
12673                                 aff_mask = lpfc_get_aff_mask(idx);
12674
12675                                 /* Migrate affinity */
12676                                 if (cpumask_test_cpu(cpu, aff_mask))
12677                                         lpfc_irq_set_aff(lpfc_get_eq_hdl(idx),
12678                                                          cpu_select);
12679                         }
12680                 } else {
12681                         /* Rely on irqbalance if no online CPUs left on NUMA */
12682                         for (idx = 0; idx < phba->cfg_irq_chann; idx++)
12683                                 lpfc_irq_clear_aff(lpfc_get_eq_hdl(idx));
12684                 }
12685         } else {
12686                 /* Migrate affinity back to this CPU */
12687                 lpfc_irq_set_aff(lpfc_get_eq_hdl(cpup->eq), cpu);
12688         }
12689 }
12690
12691 static int lpfc_cpu_offline(unsigned int cpu, struct hlist_node *node)
12692 {
12693         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
12694         struct lpfc_queue *eq, *next;
12695         LIST_HEAD(eqlist);
12696         int retval;
12697
12698         if (!phba) {
12699                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
12700                 return 0;
12701         }
12702
12703         if (__lpfc_cpuhp_checks(phba, &retval))
12704                 return retval;
12705
12706         lpfc_irq_rebalance(phba, cpu, true);
12707
12708         retval = lpfc_cpuhp_get_eq(phba, cpu, &eqlist);
12709         if (retval)
12710                 return retval;
12711
12712         /* start polling on these eq's */
12713         list_for_each_entry_safe(eq, next, &eqlist, _poll_list) {
12714                 list_del_init(&eq->_poll_list);
12715                 lpfc_sli4_start_polling(eq);
12716         }
12717
12718         return 0;
12719 }
12720
12721 static int lpfc_cpu_online(unsigned int cpu, struct hlist_node *node)
12722 {
12723         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
12724         struct lpfc_queue *eq, *next;
12725         unsigned int n;
12726         int retval;
12727
12728         if (!phba) {
12729                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
12730                 return 0;
12731         }
12732
12733         if (__lpfc_cpuhp_checks(phba, &retval))
12734                 return retval;
12735
12736         lpfc_irq_rebalance(phba, cpu, false);
12737
12738         list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list) {
12739                 n = lpfc_find_cpu_handle(phba, eq->hdwq, LPFC_FIND_BY_HDWQ);
12740                 if (n == cpu)
12741                         lpfc_sli4_stop_polling(eq);
12742         }
12743
12744         return 0;
12745 }
12746
12747 /**
12748  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
12749  * @phba: pointer to lpfc hba data structure.
12750  *
12751  * This routine is invoked to enable the MSI-X interrupt vectors to device
12752  * with SLI-4 interface spec.  It also allocates MSI-X vectors and maps them
12753  * to cpus on the system.
12754  *
12755  * When cfg_irq_numa is enabled, the adapter will only allocate vectors for
12756  * the number of cpus on the same numa node as this adapter.  The vectors are
12757  * allocated without requesting OS affinity mapping.  A vector will be
12758  * allocated and assigned to each online and offline cpu.  If the cpu is
12759  * online, then affinity will be set to that cpu.  If the cpu is offline, then
12760  * affinity will be set to the nearest peer cpu within the numa node that is
12761  * online.  If there are no online cpus within the numa node, affinity is not
12762  * assigned and the OS may do as it pleases. Note: cpu vector affinity mapping
12763  * is consistent with the way cpu online/offline is handled when cfg_irq_numa is
12764  * configured.
12765  *
12766  * If numa mode is not enabled and there is more than 1 vector allocated, then
12767  * the driver relies on the managed irq interface where the OS assigns vector to
12768  * cpu affinity.  The driver will then use that affinity mapping to setup its
12769  * cpu mapping table.
12770  *
12771  * Return codes
12772  * 0 - successful
12773  * other values - error
12774  **/
12775 static int
12776 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
12777 {
12778         int vectors, rc, index;
12779         char *name;
12780         const struct cpumask *aff_mask = NULL;
12781         unsigned int cpu = 0, cpu_cnt = 0, cpu_select = nr_cpu_ids;
12782         struct lpfc_vector_map_info *cpup;
12783         struct lpfc_hba_eq_hdl *eqhdl;
12784         const struct cpumask *maskp;
12785         unsigned int flags = PCI_IRQ_MSIX;
12786
12787         /* Set up MSI-X multi-message vectors */
12788         vectors = phba->cfg_irq_chann;
12789
12790         if (phba->irq_chann_mode != NORMAL_MODE)
12791                 aff_mask = &phba->sli4_hba.irq_aff_mask;
12792
12793         if (aff_mask) {
12794                 cpu_cnt = cpumask_weight(aff_mask);
12795                 vectors = min(phba->cfg_irq_chann, cpu_cnt);
12796
12797                 /* cpu: iterates over aff_mask including offline or online
12798                  * cpu_select: iterates over online aff_mask to set affinity
12799                  */
12800                 cpu = cpumask_first(aff_mask);
12801                 cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
12802         } else {
12803                 flags |= PCI_IRQ_AFFINITY;
12804         }
12805
12806         rc = pci_alloc_irq_vectors(phba->pcidev, 1, vectors, flags);
12807         if (rc < 0) {
12808                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12809                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
12810                 goto vec_fail_out;
12811         }
12812         vectors = rc;
12813
12814         /* Assign MSI-X vectors to interrupt handlers */
12815         for (index = 0; index < vectors; index++) {
12816                 eqhdl = lpfc_get_eq_hdl(index);
12817                 name = eqhdl->handler_name;
12818                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
12819                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
12820                          LPFC_DRIVER_HANDLER_NAME"%d", index);
12821
12822                 eqhdl->idx = index;
12823                 rc = request_irq(pci_irq_vector(phba->pcidev, index),
12824                          &lpfc_sli4_hba_intr_handler, 0,
12825                          name, eqhdl);
12826                 if (rc) {
12827                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12828                                         "0486 MSI-X fast-path (%d) "
12829                                         "request_irq failed (%d)\n", index, rc);
12830                         goto cfg_fail_out;
12831                 }
12832
12833                 eqhdl->irq = pci_irq_vector(phba->pcidev, index);
12834
12835                 if (aff_mask) {
12836                         /* If found a neighboring online cpu, set affinity */
12837                         if (cpu_select < nr_cpu_ids)
12838                                 lpfc_irq_set_aff(eqhdl, cpu_select);
12839
12840                         /* Assign EQ to cpu_map */
12841                         lpfc_assign_eq_map_info(phba, index,
12842                                                 LPFC_CPU_FIRST_IRQ,
12843                                                 cpu);
12844
12845                         /* Iterate to next offline or online cpu in aff_mask */
12846                         cpu = cpumask_next(cpu, aff_mask);
12847
12848                         /* Find next online cpu in aff_mask to set affinity */
12849                         cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
12850                 } else if (vectors == 1) {
12851                         cpu = cpumask_first(cpu_present_mask);
12852                         lpfc_assign_eq_map_info(phba, index, LPFC_CPU_FIRST_IRQ,
12853                                                 cpu);
12854                 } else {
12855                         maskp = pci_irq_get_affinity(phba->pcidev, index);
12856
12857                         /* Loop through all CPUs associated with vector index */
12858                         for_each_cpu_and(cpu, maskp, cpu_present_mask) {
12859                                 cpup = &phba->sli4_hba.cpu_map[cpu];
12860
12861                                 /* If this is the first CPU thats assigned to
12862                                  * this vector, set LPFC_CPU_FIRST_IRQ.
12863                                  *
12864                                  * With certain platforms its possible that irq
12865                                  * vectors are affinitized to all the cpu's.
12866                                  * This can result in each cpu_map.eq to be set
12867                                  * to the last vector, resulting in overwrite
12868                                  * of all the previous cpu_map.eq.  Ensure that
12869                                  * each vector receives a place in cpu_map.
12870                                  * Later call to lpfc_cpu_affinity_check will
12871                                  * ensure we are nicely balanced out.
12872                                  */
12873                                 if (cpup->eq != LPFC_VECTOR_MAP_EMPTY)
12874                                         continue;
12875                                 lpfc_assign_eq_map_info(phba, index,
12876                                                         LPFC_CPU_FIRST_IRQ,
12877                                                         cpu);
12878                                 break;
12879                         }
12880                 }
12881         }
12882
12883         if (vectors != phba->cfg_irq_chann) {
12884                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12885                                 "3238 Reducing IO channels to match number of "
12886                                 "MSI-X vectors, requested %d got %d\n",
12887                                 phba->cfg_irq_chann, vectors);
12888                 if (phba->cfg_irq_chann > vectors)
12889                         phba->cfg_irq_chann = vectors;
12890         }
12891
12892         return rc;
12893
12894 cfg_fail_out:
12895         /* free the irq already requested */
12896         for (--index; index >= 0; index--) {
12897                 eqhdl = lpfc_get_eq_hdl(index);
12898                 lpfc_irq_clear_aff(eqhdl);
12899                 irq_set_affinity_hint(eqhdl->irq, NULL);
12900                 free_irq(eqhdl->irq, eqhdl);
12901         }
12902
12903         /* Unconfigure MSI-X capability structure */
12904         pci_free_irq_vectors(phba->pcidev);
12905
12906 vec_fail_out:
12907         return rc;
12908 }
12909
12910 /**
12911  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
12912  * @phba: pointer to lpfc hba data structure.
12913  *
12914  * This routine is invoked to enable the MSI interrupt mode to device with
12915  * SLI-4 interface spec. The kernel function pci_alloc_irq_vectors() is
12916  * called to enable the MSI vector. The device driver is responsible for
12917  * calling the request_irq() to register MSI vector with a interrupt the
12918  * handler, which is done in this function.
12919  *
12920  * Return codes
12921  *      0 - successful
12922  *      other values - error
12923  **/
12924 static int
12925 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
12926 {
12927         int rc, index;
12928         unsigned int cpu;
12929         struct lpfc_hba_eq_hdl *eqhdl;
12930
12931         rc = pci_alloc_irq_vectors(phba->pcidev, 1, 1,
12932                                    PCI_IRQ_MSI | PCI_IRQ_AFFINITY);
12933         if (rc > 0)
12934                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12935                                 "0487 PCI enable MSI mode success.\n");
12936         else {
12937                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12938                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
12939                 return rc ? rc : -1;
12940         }
12941
12942         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
12943                          0, LPFC_DRIVER_NAME, phba);
12944         if (rc) {
12945                 pci_free_irq_vectors(phba->pcidev);
12946                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12947                                 "0490 MSI request_irq failed (%d)\n", rc);
12948                 return rc;
12949         }
12950
12951         eqhdl = lpfc_get_eq_hdl(0);
12952         eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
12953
12954         cpu = cpumask_first(cpu_present_mask);
12955         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ, cpu);
12956
12957         for (index = 0; index < phba->cfg_irq_chann; index++) {
12958                 eqhdl = lpfc_get_eq_hdl(index);
12959                 eqhdl->idx = index;
12960         }
12961
12962         return 0;
12963 }
12964
12965 /**
12966  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
12967  * @phba: pointer to lpfc hba data structure.
12968  * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
12969  *
12970  * This routine is invoked to enable device interrupt and associate driver's
12971  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
12972  * interface spec. Depends on the interrupt mode configured to the driver,
12973  * the driver will try to fallback from the configured interrupt mode to an
12974  * interrupt mode which is supported by the platform, kernel, and device in
12975  * the order of:
12976  * MSI-X -> MSI -> IRQ.
12977  *
12978  * Return codes
12979  *      0 - successful
12980  *      other values - error
12981  **/
12982 static uint32_t
12983 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
12984 {
12985         uint32_t intr_mode = LPFC_INTR_ERROR;
12986         int retval, idx;
12987
12988         if (cfg_mode == 2) {
12989                 /* Preparation before conf_msi mbox cmd */
12990                 retval = 0;
12991                 if (!retval) {
12992                         /* Now, try to enable MSI-X interrupt mode */
12993                         retval = lpfc_sli4_enable_msix(phba);
12994                         if (!retval) {
12995                                 /* Indicate initialization to MSI-X mode */
12996                                 phba->intr_type = MSIX;
12997                                 intr_mode = 2;
12998                         }
12999                 }
13000         }
13001
13002         /* Fallback to MSI if MSI-X initialization failed */
13003         if (cfg_mode >= 1 && phba->intr_type == NONE) {
13004                 retval = lpfc_sli4_enable_msi(phba);
13005                 if (!retval) {
13006                         /* Indicate initialization to MSI mode */
13007                         phba->intr_type = MSI;
13008                         intr_mode = 1;
13009                 }
13010         }
13011
13012         /* Fallback to INTx if both MSI-X/MSI initalization failed */
13013         if (phba->intr_type == NONE) {
13014                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
13015                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
13016                 if (!retval) {
13017                         struct lpfc_hba_eq_hdl *eqhdl;
13018                         unsigned int cpu;
13019
13020                         /* Indicate initialization to INTx mode */
13021                         phba->intr_type = INTx;
13022                         intr_mode = 0;
13023
13024                         eqhdl = lpfc_get_eq_hdl(0);
13025                         eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
13026
13027                         cpu = cpumask_first(cpu_present_mask);
13028                         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ,
13029                                                 cpu);
13030                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
13031                                 eqhdl = lpfc_get_eq_hdl(idx);
13032                                 eqhdl->idx = idx;
13033                         }
13034                 }
13035         }
13036         return intr_mode;
13037 }
13038
13039 /**
13040  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
13041  * @phba: pointer to lpfc hba data structure.
13042  *
13043  * This routine is invoked to disable device interrupt and disassociate
13044  * the driver's interrupt handler(s) from interrupt vector(s) to device
13045  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
13046  * will release the interrupt vector(s) for the message signaled interrupt.
13047  **/
13048 static void
13049 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
13050 {
13051         /* Disable the currently initialized interrupt mode */
13052         if (phba->intr_type == MSIX) {
13053                 int index;
13054                 struct lpfc_hba_eq_hdl *eqhdl;
13055
13056                 /* Free up MSI-X multi-message vectors */
13057                 for (index = 0; index < phba->cfg_irq_chann; index++) {
13058                         eqhdl = lpfc_get_eq_hdl(index);
13059                         lpfc_irq_clear_aff(eqhdl);
13060                         irq_set_affinity_hint(eqhdl->irq, NULL);
13061                         free_irq(eqhdl->irq, eqhdl);
13062                 }
13063         } else {
13064                 free_irq(phba->pcidev->irq, phba);
13065         }
13066
13067         pci_free_irq_vectors(phba->pcidev);
13068
13069         /* Reset interrupt management states */
13070         phba->intr_type = NONE;
13071         phba->sli.slistat.sli_intr = 0;
13072 }
13073
13074 /**
13075  * lpfc_unset_hba - Unset SLI3 hba device initialization
13076  * @phba: pointer to lpfc hba data structure.
13077  *
13078  * This routine is invoked to unset the HBA device initialization steps to
13079  * a device with SLI-3 interface spec.
13080  **/
13081 static void
13082 lpfc_unset_hba(struct lpfc_hba *phba)
13083 {
13084         struct lpfc_vport *vport = phba->pport;
13085         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
13086
13087         spin_lock_irq(shost->host_lock);
13088         vport->load_flag |= FC_UNLOADING;
13089         spin_unlock_irq(shost->host_lock);
13090
13091         kfree(phba->vpi_bmask);
13092         kfree(phba->vpi_ids);
13093
13094         lpfc_stop_hba_timers(phba);
13095
13096         phba->pport->work_port_events = 0;
13097
13098         lpfc_sli_hba_down(phba);
13099
13100         lpfc_sli_brdrestart(phba);
13101
13102         lpfc_sli_disable_intr(phba);
13103
13104         return;
13105 }
13106
13107 /**
13108  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
13109  * @phba: Pointer to HBA context object.
13110  *
13111  * This function is called in the SLI4 code path to wait for completion
13112  * of device's XRIs exchange busy. It will check the XRI exchange busy
13113  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
13114  * that, it will check the XRI exchange busy on outstanding FCP and ELS
13115  * I/Os every 30 seconds, log error message, and wait forever. Only when
13116  * all XRI exchange busy complete, the driver unload shall proceed with
13117  * invoking the function reset ioctl mailbox command to the CNA and the
13118  * the rest of the driver unload resource release.
13119  **/
13120 static void
13121 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
13122 {
13123         struct lpfc_sli4_hdw_queue *qp;
13124         int idx, ccnt;
13125         int wait_time = 0;
13126         int io_xri_cmpl = 1;
13127         int nvmet_xri_cmpl = 1;
13128         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
13129
13130         /* Driver just aborted IOs during the hba_unset process.  Pause
13131          * here to give the HBA time to complete the IO and get entries
13132          * into the abts lists.
13133          */
13134         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
13135
13136         /* Wait for NVME pending IO to flush back to transport. */
13137         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
13138                 lpfc_nvme_wait_for_io_drain(phba);
13139
13140         ccnt = 0;
13141         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
13142                 qp = &phba->sli4_hba.hdwq[idx];
13143                 io_xri_cmpl = list_empty(&qp->lpfc_abts_io_buf_list);
13144                 if (!io_xri_cmpl) /* if list is NOT empty */
13145                         ccnt++;
13146         }
13147         if (ccnt)
13148                 io_xri_cmpl = 0;
13149
13150         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13151                 nvmet_xri_cmpl =
13152                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
13153         }
13154
13155         while (!els_xri_cmpl || !io_xri_cmpl || !nvmet_xri_cmpl) {
13156                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
13157                         if (!nvmet_xri_cmpl)
13158                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13159                                                 "6424 NVMET XRI exchange busy "
13160                                                 "wait time: %d seconds.\n",
13161                                                 wait_time/1000);
13162                         if (!io_xri_cmpl)
13163                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13164                                                 "6100 IO XRI exchange busy "
13165                                                 "wait time: %d seconds.\n",
13166                                                 wait_time/1000);
13167                         if (!els_xri_cmpl)
13168                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13169                                                 "2878 ELS XRI exchange busy "
13170                                                 "wait time: %d seconds.\n",
13171                                                 wait_time/1000);
13172                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
13173                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
13174                 } else {
13175                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
13176                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
13177                 }
13178
13179                 ccnt = 0;
13180                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
13181                         qp = &phba->sli4_hba.hdwq[idx];
13182                         io_xri_cmpl = list_empty(
13183                             &qp->lpfc_abts_io_buf_list);
13184                         if (!io_xri_cmpl) /* if list is NOT empty */
13185                                 ccnt++;
13186                 }
13187                 if (ccnt)
13188                         io_xri_cmpl = 0;
13189
13190                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13191                         nvmet_xri_cmpl = list_empty(
13192                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
13193                 }
13194                 els_xri_cmpl =
13195                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
13196
13197         }
13198 }
13199
13200 /**
13201  * lpfc_sli4_hba_unset - Unset the fcoe hba
13202  * @phba: Pointer to HBA context object.
13203  *
13204  * This function is called in the SLI4 code path to reset the HBA's FCoE
13205  * function. The caller is not required to hold any lock. This routine
13206  * issues PCI function reset mailbox command to reset the FCoE function.
13207  * At the end of the function, it calls lpfc_hba_down_post function to
13208  * free any pending commands.
13209  **/
13210 static void
13211 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
13212 {
13213         int wait_cnt = 0;
13214         LPFC_MBOXQ_t *mboxq;
13215         struct pci_dev *pdev = phba->pcidev;
13216
13217         lpfc_stop_hba_timers(phba);
13218         hrtimer_cancel(&phba->cmf_timer);
13219
13220         if (phba->pport)
13221                 phba->sli4_hba.intr_enable = 0;
13222
13223         /*
13224          * Gracefully wait out the potential current outstanding asynchronous
13225          * mailbox command.
13226          */
13227
13228         /* First, block any pending async mailbox command from posted */
13229         spin_lock_irq(&phba->hbalock);
13230         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
13231         spin_unlock_irq(&phba->hbalock);
13232         /* Now, trying to wait it out if we can */
13233         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
13234                 msleep(10);
13235                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
13236                         break;
13237         }
13238         /* Forcefully release the outstanding mailbox command if timed out */
13239         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
13240                 spin_lock_irq(&phba->hbalock);
13241                 mboxq = phba->sli.mbox_active;
13242                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
13243                 __lpfc_mbox_cmpl_put(phba, mboxq);
13244                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
13245                 phba->sli.mbox_active = NULL;
13246                 spin_unlock_irq(&phba->hbalock);
13247         }
13248
13249         /* Abort all iocbs associated with the hba */
13250         lpfc_sli_hba_iocb_abort(phba);
13251
13252         /* Wait for completion of device XRI exchange busy */
13253         lpfc_sli4_xri_exchange_busy_wait(phba);
13254
13255         /* per-phba callback de-registration for hotplug event */
13256         if (phba->pport)
13257                 lpfc_cpuhp_remove(phba);
13258
13259         /* Disable PCI subsystem interrupt */
13260         lpfc_sli4_disable_intr(phba);
13261
13262         /* Disable SR-IOV if enabled */
13263         if (phba->cfg_sriov_nr_virtfn)
13264                 pci_disable_sriov(pdev);
13265
13266         /* Stop kthread signal shall trigger work_done one more time */
13267         kthread_stop(phba->worker_thread);
13268
13269         /* Disable FW logging to host memory */
13270         lpfc_ras_stop_fwlog(phba);
13271
13272         /* Unset the queues shared with the hardware then release all
13273          * allocated resources.
13274          */
13275         lpfc_sli4_queue_unset(phba);
13276         lpfc_sli4_queue_destroy(phba);
13277
13278         /* Reset SLI4 HBA FCoE function */
13279         lpfc_pci_function_reset(phba);
13280
13281         /* Free RAS DMA memory */
13282         if (phba->ras_fwlog.ras_enabled)
13283                 lpfc_sli4_ras_dma_free(phba);
13284
13285         /* Stop the SLI4 device port */
13286         if (phba->pport)
13287                 phba->pport->work_port_events = 0;
13288 }
13289
13290 static uint32_t
13291 lpfc_cgn_crc32(uint32_t crc, u8 byte)
13292 {
13293         uint32_t msb = 0;
13294         uint32_t bit;
13295
13296         for (bit = 0; bit < 8; bit++) {
13297                 msb = (crc >> 31) & 1;
13298                 crc <<= 1;
13299
13300                 if (msb ^ (byte & 1)) {
13301                         crc ^= LPFC_CGN_CRC32_MAGIC_NUMBER;
13302                         crc |= 1;
13303                 }
13304                 byte >>= 1;
13305         }
13306         return crc;
13307 }
13308
13309 static uint32_t
13310 lpfc_cgn_reverse_bits(uint32_t wd)
13311 {
13312         uint32_t result = 0;
13313         uint32_t i;
13314
13315         for (i = 0; i < 32; i++) {
13316                 result <<= 1;
13317                 result |= (1 & (wd >> i));
13318         }
13319         return result;
13320 }
13321
13322 /*
13323  * The routine corresponds with the algorithm the HBA firmware
13324  * uses to validate the data integrity.
13325  */
13326 uint32_t
13327 lpfc_cgn_calc_crc32(void *ptr, uint32_t byteLen, uint32_t crc)
13328 {
13329         uint32_t  i;
13330         uint32_t result;
13331         uint8_t  *data = (uint8_t *)ptr;
13332
13333         for (i = 0; i < byteLen; ++i)
13334                 crc = lpfc_cgn_crc32(crc, data[i]);
13335
13336         result = ~lpfc_cgn_reverse_bits(crc);
13337         return result;
13338 }
13339
13340 void
13341 lpfc_init_congestion_buf(struct lpfc_hba *phba)
13342 {
13343         struct lpfc_cgn_info *cp;
13344         struct timespec64 cmpl_time;
13345         struct tm broken;
13346         uint16_t size;
13347         uint32_t crc;
13348
13349         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
13350                         "6235 INIT Congestion Buffer %p\n", phba->cgn_i);
13351
13352         if (!phba->cgn_i)
13353                 return;
13354         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
13355
13356         atomic_set(&phba->cgn_fabric_warn_cnt, 0);
13357         atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
13358         atomic_set(&phba->cgn_sync_alarm_cnt, 0);
13359         atomic_set(&phba->cgn_sync_warn_cnt, 0);
13360
13361         atomic64_set(&phba->cgn_acqe_stat.alarm, 0);
13362         atomic64_set(&phba->cgn_acqe_stat.warn, 0);
13363         atomic_set(&phba->cgn_driver_evt_cnt, 0);
13364         atomic_set(&phba->cgn_latency_evt_cnt, 0);
13365         atomic64_set(&phba->cgn_latency_evt, 0);
13366         phba->cgn_evt_minute = 0;
13367         phba->hba_flag &= ~HBA_CGN_DAY_WRAP;
13368
13369         memset(cp, 0xff, LPFC_CGN_DATA_SIZE);
13370         cp->cgn_info_size = cpu_to_le16(LPFC_CGN_INFO_SZ);
13371         cp->cgn_info_version = LPFC_CGN_INFO_V3;
13372
13373         /* cgn parameters */
13374         cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
13375         cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
13376         cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
13377         cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
13378
13379         ktime_get_real_ts64(&cmpl_time);
13380         time64_to_tm(cmpl_time.tv_sec, 0, &broken);
13381
13382         cp->cgn_info_month = broken.tm_mon + 1;
13383         cp->cgn_info_day = broken.tm_mday;
13384         cp->cgn_info_year = broken.tm_year - 100; /* relative to 2000 */
13385         cp->cgn_info_hour = broken.tm_hour;
13386         cp->cgn_info_minute = broken.tm_min;
13387         cp->cgn_info_second = broken.tm_sec;
13388
13389         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
13390                         "2643 CGNInfo Init: Start Time "
13391                         "%d/%d/%d %d:%d:%d\n",
13392                         cp->cgn_info_day, cp->cgn_info_month,
13393                         cp->cgn_info_year, cp->cgn_info_hour,
13394                         cp->cgn_info_minute, cp->cgn_info_second);
13395
13396         /* Fill in default LUN qdepth */
13397         if (phba->pport) {
13398                 size = (uint16_t)(phba->pport->cfg_lun_queue_depth);
13399                 cp->cgn_lunq = cpu_to_le16(size);
13400         }
13401
13402         /* last used Index initialized to 0xff already */
13403
13404         cp->cgn_warn_freq = cpu_to_le16(LPFC_FPIN_INIT_FREQ);
13405         cp->cgn_alarm_freq = cpu_to_le16(LPFC_FPIN_INIT_FREQ);
13406         crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ, LPFC_CGN_CRC32_SEED);
13407         cp->cgn_info_crc = cpu_to_le32(crc);
13408
13409         phba->cgn_evt_timestamp = jiffies +
13410                 msecs_to_jiffies(LPFC_CGN_TIMER_TO_MIN);
13411 }
13412
13413 void
13414 lpfc_init_congestion_stat(struct lpfc_hba *phba)
13415 {
13416         struct lpfc_cgn_info *cp;
13417         struct timespec64 cmpl_time;
13418         struct tm broken;
13419         uint32_t crc;
13420
13421         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
13422                         "6236 INIT Congestion Stat %p\n", phba->cgn_i);
13423
13424         if (!phba->cgn_i)
13425                 return;
13426
13427         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
13428         memset(&cp->cgn_stat_npm, 0, LPFC_CGN_STAT_SIZE);
13429
13430         ktime_get_real_ts64(&cmpl_time);
13431         time64_to_tm(cmpl_time.tv_sec, 0, &broken);
13432
13433         cp->cgn_stat_month = broken.tm_mon + 1;
13434         cp->cgn_stat_day = broken.tm_mday;
13435         cp->cgn_stat_year = broken.tm_year - 100; /* relative to 2000 */
13436         cp->cgn_stat_hour = broken.tm_hour;
13437         cp->cgn_stat_minute = broken.tm_min;
13438
13439         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
13440                         "2647 CGNstat Init: Start Time "
13441                         "%d/%d/%d %d:%d\n",
13442                         cp->cgn_stat_day, cp->cgn_stat_month,
13443                         cp->cgn_stat_year, cp->cgn_stat_hour,
13444                         cp->cgn_stat_minute);
13445
13446         crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ, LPFC_CGN_CRC32_SEED);
13447         cp->cgn_info_crc = cpu_to_le32(crc);
13448 }
13449
13450 /**
13451  * __lpfc_reg_congestion_buf - register congestion info buffer with HBA
13452  * @phba: Pointer to hba context object.
13453  * @reg: flag to determine register or unregister.
13454  */
13455 static int
13456 __lpfc_reg_congestion_buf(struct lpfc_hba *phba, int reg)
13457 {
13458         struct lpfc_mbx_reg_congestion_buf *reg_congestion_buf;
13459         union  lpfc_sli4_cfg_shdr *shdr;
13460         uint32_t shdr_status, shdr_add_status;
13461         LPFC_MBOXQ_t *mboxq;
13462         int length, rc;
13463
13464         if (!phba->cgn_i)
13465                 return -ENXIO;
13466
13467         mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13468         if (!mboxq) {
13469                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
13470                                 "2641 REG_CONGESTION_BUF mbox allocation fail: "
13471                                 "HBA state x%x reg %d\n",
13472                                 phba->pport->port_state, reg);
13473                 return -ENOMEM;
13474         }
13475
13476         length = (sizeof(struct lpfc_mbx_reg_congestion_buf) -
13477                 sizeof(struct lpfc_sli4_cfg_mhdr));
13478         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
13479                          LPFC_MBOX_OPCODE_REG_CONGESTION_BUF, length,
13480                          LPFC_SLI4_MBX_EMBED);
13481         reg_congestion_buf = &mboxq->u.mqe.un.reg_congestion_buf;
13482         bf_set(lpfc_mbx_reg_cgn_buf_type, reg_congestion_buf, 1);
13483         if (reg > 0)
13484                 bf_set(lpfc_mbx_reg_cgn_buf_cnt, reg_congestion_buf, 1);
13485         else
13486                 bf_set(lpfc_mbx_reg_cgn_buf_cnt, reg_congestion_buf, 0);
13487         reg_congestion_buf->length = sizeof(struct lpfc_cgn_info);
13488         reg_congestion_buf->addr_lo =
13489                 putPaddrLow(phba->cgn_i->phys);
13490         reg_congestion_buf->addr_hi =
13491                 putPaddrHigh(phba->cgn_i->phys);
13492
13493         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
13494         shdr = (union lpfc_sli4_cfg_shdr *)
13495                 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
13496         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13497         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
13498                                  &shdr->response);
13499         mempool_free(mboxq, phba->mbox_mem_pool);
13500         if (shdr_status || shdr_add_status || rc) {
13501                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13502                                 "2642 REG_CONGESTION_BUF mailbox "
13503                                 "failed with status x%x add_status x%x,"
13504                                 " mbx status x%x reg %d\n",
13505                                 shdr_status, shdr_add_status, rc, reg);
13506                 return -ENXIO;
13507         }
13508         return 0;
13509 }
13510
13511 int
13512 lpfc_unreg_congestion_buf(struct lpfc_hba *phba)
13513 {
13514         lpfc_cmf_stop(phba);
13515         return __lpfc_reg_congestion_buf(phba, 0);
13516 }
13517
13518 int
13519 lpfc_reg_congestion_buf(struct lpfc_hba *phba)
13520 {
13521         return __lpfc_reg_congestion_buf(phba, 1);
13522 }
13523
13524 /**
13525  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
13526  * @phba: Pointer to HBA context object.
13527  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
13528  *
13529  * This function is called in the SLI4 code path to read the port's
13530  * sli4 capabilities.
13531  *
13532  * This function may be be called from any context that can block-wait
13533  * for the completion.  The expectation is that this routine is called
13534  * typically from probe_one or from the online routine.
13535  **/
13536 int
13537 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
13538 {
13539         int rc;
13540         struct lpfc_mqe *mqe = &mboxq->u.mqe;
13541         struct lpfc_pc_sli4_params *sli4_params;
13542         uint32_t mbox_tmo;
13543         int length;
13544         bool exp_wqcq_pages = true;
13545         struct lpfc_sli4_parameters *mbx_sli4_parameters;
13546
13547         /*
13548          * By default, the driver assumes the SLI4 port requires RPI
13549          * header postings.  The SLI4_PARAM response will correct this
13550          * assumption.
13551          */
13552         phba->sli4_hba.rpi_hdrs_in_use = 1;
13553
13554         /* Read the port's SLI4 Config Parameters */
13555         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
13556                   sizeof(struct lpfc_sli4_cfg_mhdr));
13557         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
13558                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
13559                          length, LPFC_SLI4_MBX_EMBED);
13560         if (!phba->sli4_hba.intr_enable)
13561                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
13562         else {
13563                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
13564                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
13565         }
13566         if (unlikely(rc))
13567                 return rc;
13568         sli4_params = &phba->sli4_hba.pc_sli4_params;
13569         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
13570         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
13571         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
13572         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
13573         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
13574                                              mbx_sli4_parameters);
13575         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
13576                                              mbx_sli4_parameters);
13577         if (bf_get(cfg_phwq, mbx_sli4_parameters))
13578                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
13579         else
13580                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
13581         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
13582         sli4_params->loopbk_scope = bf_get(cfg_loopbk_scope,
13583                                            mbx_sli4_parameters);
13584         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
13585         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
13586         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
13587         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
13588         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
13589         sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
13590         sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
13591         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
13592         sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
13593         sli4_params->pls = bf_get(cfg_pvl, mbx_sli4_parameters);
13594         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
13595                                             mbx_sli4_parameters);
13596         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
13597         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
13598                                            mbx_sli4_parameters);
13599         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
13600         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
13601
13602         /* Check for Extended Pre-Registered SGL support */
13603         phba->cfg_xpsgl = bf_get(cfg_xpsgl, mbx_sli4_parameters);
13604
13605         /* Check for firmware nvme support */
13606         rc = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
13607                      bf_get(cfg_xib, mbx_sli4_parameters));
13608
13609         if (rc) {
13610                 /* Save this to indicate the Firmware supports NVME */
13611                 sli4_params->nvme = 1;
13612
13613                 /* Firmware NVME support, check driver FC4 NVME support */
13614                 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) {
13615                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
13616                                         "6133 Disabling NVME support: "
13617                                         "FC4 type not supported: x%x\n",
13618                                         phba->cfg_enable_fc4_type);
13619                         goto fcponly;
13620                 }
13621         } else {
13622                 /* No firmware NVME support, check driver FC4 NVME support */
13623                 sli4_params->nvme = 0;
13624                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13625                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
13626                                         "6101 Disabling NVME support: Not "
13627                                         "supported by firmware (%d %d) x%x\n",
13628                                         bf_get(cfg_nvme, mbx_sli4_parameters),
13629                                         bf_get(cfg_xib, mbx_sli4_parameters),
13630                                         phba->cfg_enable_fc4_type);
13631 fcponly:
13632                         phba->nvmet_support = 0;
13633                         phba->cfg_nvmet_mrq = 0;
13634                         phba->cfg_nvme_seg_cnt = 0;
13635
13636                         /* If no FC4 type support, move to just SCSI support */
13637                         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
13638                                 return -ENODEV;
13639                         phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
13640                 }
13641         }
13642
13643         /* If the NVME FC4 type is enabled, scale the sg_seg_cnt to
13644          * accommodate 512K and 1M IOs in a single nvme buf.
13645          */
13646         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
13647                 phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
13648
13649         /* Enable embedded Payload BDE if support is indicated */
13650         if (bf_get(cfg_pbde, mbx_sli4_parameters))
13651                 phba->cfg_enable_pbde = 1;
13652         else
13653                 phba->cfg_enable_pbde = 0;
13654
13655         /*
13656          * To support Suppress Response feature we must satisfy 3 conditions.
13657          * lpfc_suppress_rsp module parameter must be set (default).
13658          * In SLI4-Parameters Descriptor:
13659          * Extended Inline Buffers (XIB) must be supported.
13660          * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
13661          * (double negative).
13662          */
13663         if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
13664             !(bf_get(cfg_nosr, mbx_sli4_parameters)))
13665                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
13666         else
13667                 phba->cfg_suppress_rsp = 0;
13668
13669         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
13670                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
13671
13672         /* Make sure that sge_supp_len can be handled by the driver */
13673         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
13674                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
13675
13676         /*
13677          * Check whether the adapter supports an embedded copy of the
13678          * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
13679          * to use this option, 128-byte WQEs must be used.
13680          */
13681         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
13682                 phba->fcp_embed_io = 1;
13683         else
13684                 phba->fcp_embed_io = 0;
13685
13686         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
13687                         "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
13688                         bf_get(cfg_xib, mbx_sli4_parameters),
13689                         phba->cfg_enable_pbde,
13690                         phba->fcp_embed_io, sli4_params->nvme,
13691                         phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
13692
13693         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
13694             LPFC_SLI_INTF_IF_TYPE_2) &&
13695             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
13696                  LPFC_SLI_INTF_FAMILY_LNCR_A0))
13697                 exp_wqcq_pages = false;
13698
13699         if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
13700             (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
13701             exp_wqcq_pages &&
13702             (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
13703                 phba->enab_exp_wqcq_pages = 1;
13704         else
13705                 phba->enab_exp_wqcq_pages = 0;
13706         /*
13707          * Check if the SLI port supports MDS Diagnostics
13708          */
13709         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
13710                 phba->mds_diags_support = 1;
13711         else
13712                 phba->mds_diags_support = 0;
13713
13714         /*
13715          * Check if the SLI port supports NSLER
13716          */
13717         if (bf_get(cfg_nsler, mbx_sli4_parameters))
13718                 phba->nsler = 1;
13719         else
13720                 phba->nsler = 0;
13721
13722         return 0;
13723 }
13724
13725 /**
13726  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
13727  * @pdev: pointer to PCI device
13728  * @pid: pointer to PCI device identifier
13729  *
13730  * This routine is to be called to attach a device with SLI-3 interface spec
13731  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
13732  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
13733  * information of the device and driver to see if the driver state that it can
13734  * support this kind of device. If the match is successful, the driver core
13735  * invokes this routine. If this routine determines it can claim the HBA, it
13736  * does all the initialization that it needs to do to handle the HBA properly.
13737  *
13738  * Return code
13739  *      0 - driver can claim the device
13740  *      negative value - driver can not claim the device
13741  **/
13742 static int
13743 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
13744 {
13745         struct lpfc_hba   *phba;
13746         struct lpfc_vport *vport = NULL;
13747         struct Scsi_Host  *shost = NULL;
13748         int error;
13749         uint32_t cfg_mode, intr_mode;
13750
13751         /* Allocate memory for HBA structure */
13752         phba = lpfc_hba_alloc(pdev);
13753         if (!phba)
13754                 return -ENOMEM;
13755
13756         /* Perform generic PCI device enabling operation */
13757         error = lpfc_enable_pci_dev(phba);
13758         if (error)
13759                 goto out_free_phba;
13760
13761         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
13762         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
13763         if (error)
13764                 goto out_disable_pci_dev;
13765
13766         /* Set up SLI-3 specific device PCI memory space */
13767         error = lpfc_sli_pci_mem_setup(phba);
13768         if (error) {
13769                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13770                                 "1402 Failed to set up pci memory space.\n");
13771                 goto out_disable_pci_dev;
13772         }
13773
13774         /* Set up SLI-3 specific device driver resources */
13775         error = lpfc_sli_driver_resource_setup(phba);
13776         if (error) {
13777                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13778                                 "1404 Failed to set up driver resource.\n");
13779                 goto out_unset_pci_mem_s3;
13780         }
13781
13782         /* Initialize and populate the iocb list per host */
13783
13784         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
13785         if (error) {
13786                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13787                                 "1405 Failed to initialize iocb list.\n");
13788                 goto out_unset_driver_resource_s3;
13789         }
13790
13791         /* Set up common device driver resources */
13792         error = lpfc_setup_driver_resource_phase2(phba);
13793         if (error) {
13794                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13795                                 "1406 Failed to set up driver resource.\n");
13796                 goto out_free_iocb_list;
13797         }
13798
13799         /* Get the default values for Model Name and Description */
13800         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
13801
13802         /* Create SCSI host to the physical port */
13803         error = lpfc_create_shost(phba);
13804         if (error) {
13805                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13806                                 "1407 Failed to create scsi host.\n");
13807                 goto out_unset_driver_resource;
13808         }
13809
13810         /* Configure sysfs attributes */
13811         vport = phba->pport;
13812         error = lpfc_alloc_sysfs_attr(vport);
13813         if (error) {
13814                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13815                                 "1476 Failed to allocate sysfs attr\n");
13816                 goto out_destroy_shost;
13817         }
13818
13819         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
13820         /* Now, trying to enable interrupt and bring up the device */
13821         cfg_mode = phba->cfg_use_msi;
13822         while (true) {
13823                 /* Put device to a known state before enabling interrupt */
13824                 lpfc_stop_port(phba);
13825                 /* Configure and enable interrupt */
13826                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
13827                 if (intr_mode == LPFC_INTR_ERROR) {
13828                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13829                                         "0431 Failed to enable interrupt.\n");
13830                         error = -ENODEV;
13831                         goto out_free_sysfs_attr;
13832                 }
13833                 /* SLI-3 HBA setup */
13834                 if (lpfc_sli_hba_setup(phba)) {
13835                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13836                                         "1477 Failed to set up hba\n");
13837                         error = -ENODEV;
13838                         goto out_remove_device;
13839                 }
13840
13841                 /* Wait 50ms for the interrupts of previous mailbox commands */
13842                 msleep(50);
13843                 /* Check active interrupts on message signaled interrupts */
13844                 if (intr_mode == 0 ||
13845                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
13846                         /* Log the current active interrupt mode */
13847                         phba->intr_mode = intr_mode;
13848                         lpfc_log_intr_mode(phba, intr_mode);
13849                         break;
13850                 } else {
13851                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13852                                         "0447 Configure interrupt mode (%d) "
13853                                         "failed active interrupt test.\n",
13854                                         intr_mode);
13855                         /* Disable the current interrupt mode */
13856                         lpfc_sli_disable_intr(phba);
13857                         /* Try next level of interrupt mode */
13858                         cfg_mode = --intr_mode;
13859                 }
13860         }
13861
13862         /* Perform post initialization setup */
13863         lpfc_post_init_setup(phba);
13864
13865         /* Check if there are static vports to be created. */
13866         lpfc_create_static_vport(phba);
13867
13868         return 0;
13869
13870 out_remove_device:
13871         lpfc_unset_hba(phba);
13872 out_free_sysfs_attr:
13873         lpfc_free_sysfs_attr(vport);
13874 out_destroy_shost:
13875         lpfc_destroy_shost(phba);
13876 out_unset_driver_resource:
13877         lpfc_unset_driver_resource_phase2(phba);
13878 out_free_iocb_list:
13879         lpfc_free_iocb_list(phba);
13880 out_unset_driver_resource_s3:
13881         lpfc_sli_driver_resource_unset(phba);
13882 out_unset_pci_mem_s3:
13883         lpfc_sli_pci_mem_unset(phba);
13884 out_disable_pci_dev:
13885         lpfc_disable_pci_dev(phba);
13886         if (shost)
13887                 scsi_host_put(shost);
13888 out_free_phba:
13889         lpfc_hba_free(phba);
13890         return error;
13891 }
13892
13893 /**
13894  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
13895  * @pdev: pointer to PCI device
13896  *
13897  * This routine is to be called to disattach a device with SLI-3 interface
13898  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
13899  * removed from PCI bus, it performs all the necessary cleanup for the HBA
13900  * device to be removed from the PCI subsystem properly.
13901  **/
13902 static void
13903 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
13904 {
13905         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
13906         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
13907         struct lpfc_vport **vports;
13908         struct lpfc_hba   *phba = vport->phba;
13909         int i;
13910
13911         spin_lock_irq(&phba->hbalock);
13912         vport->load_flag |= FC_UNLOADING;
13913         spin_unlock_irq(&phba->hbalock);
13914
13915         lpfc_free_sysfs_attr(vport);
13916
13917         /* Release all the vports against this physical port */
13918         vports = lpfc_create_vport_work_array(phba);
13919         if (vports != NULL)
13920                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
13921                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
13922                                 continue;
13923                         fc_vport_terminate(vports[i]->fc_vport);
13924                 }
13925         lpfc_destroy_vport_work_array(phba, vports);
13926
13927         /* Remove FC host with the physical port */
13928         fc_remove_host(shost);
13929         scsi_remove_host(shost);
13930
13931         /* Clean up all nodes, mailboxes and IOs. */
13932         lpfc_cleanup(vport);
13933
13934         /*
13935          * Bring down the SLI Layer. This step disable all interrupts,
13936          * clears the rings, discards all mailbox commands, and resets
13937          * the HBA.
13938          */
13939
13940         /* HBA interrupt will be disabled after this call */
13941         lpfc_sli_hba_down(phba);
13942         /* Stop kthread signal shall trigger work_done one more time */
13943         kthread_stop(phba->worker_thread);
13944         /* Final cleanup of txcmplq and reset the HBA */
13945         lpfc_sli_brdrestart(phba);
13946
13947         kfree(phba->vpi_bmask);
13948         kfree(phba->vpi_ids);
13949
13950         lpfc_stop_hba_timers(phba);
13951         spin_lock_irq(&phba->port_list_lock);
13952         list_del_init(&vport->listentry);
13953         spin_unlock_irq(&phba->port_list_lock);
13954
13955         lpfc_debugfs_terminate(vport);
13956
13957         /* Disable SR-IOV if enabled */
13958         if (phba->cfg_sriov_nr_virtfn)
13959                 pci_disable_sriov(pdev);
13960
13961         /* Disable interrupt */
13962         lpfc_sli_disable_intr(phba);
13963
13964         scsi_host_put(shost);
13965
13966         /*
13967          * Call scsi_free before mem_free since scsi bufs are released to their
13968          * corresponding pools here.
13969          */
13970         lpfc_scsi_free(phba);
13971         lpfc_free_iocb_list(phba);
13972
13973         lpfc_mem_free_all(phba);
13974
13975         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
13976                           phba->hbqslimp.virt, phba->hbqslimp.phys);
13977
13978         /* Free resources associated with SLI2 interface */
13979         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
13980                           phba->slim2p.virt, phba->slim2p.phys);
13981
13982         /* unmap adapter SLIM and Control Registers */
13983         iounmap(phba->ctrl_regs_memmap_p);
13984         iounmap(phba->slim_memmap_p);
13985
13986         lpfc_hba_free(phba);
13987
13988         pci_release_mem_regions(pdev);
13989         pci_disable_device(pdev);
13990 }
13991
13992 /**
13993  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
13994  * @dev_d: pointer to device
13995  *
13996  * This routine is to be called from the kernel's PCI subsystem to support
13997  * system Power Management (PM) to device with SLI-3 interface spec. When
13998  * PM invokes this method, it quiesces the device by stopping the driver's
13999  * worker thread for the device, turning off device's interrupt and DMA,
14000  * and bring the device offline. Note that as the driver implements the
14001  * minimum PM requirements to a power-aware driver's PM support for the
14002  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
14003  * to the suspend() method call will be treated as SUSPEND and the driver will
14004  * fully reinitialize its device during resume() method call, the driver will
14005  * set device to PCI_D3hot state in PCI config space instead of setting it
14006  * according to the @msg provided by the PM.
14007  *
14008  * Return code
14009  *      0 - driver suspended the device
14010  *      Error otherwise
14011  **/
14012 static int __maybe_unused
14013 lpfc_pci_suspend_one_s3(struct device *dev_d)
14014 {
14015         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14016         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14017
14018         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14019                         "0473 PCI device Power Management suspend.\n");
14020
14021         /* Bring down the device */
14022         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14023         lpfc_offline(phba);
14024         kthread_stop(phba->worker_thread);
14025
14026         /* Disable interrupt from device */
14027         lpfc_sli_disable_intr(phba);
14028
14029         return 0;
14030 }
14031
14032 /**
14033  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
14034  * @dev_d: pointer to device
14035  *
14036  * This routine is to be called from the kernel's PCI subsystem to support
14037  * system Power Management (PM) to device with SLI-3 interface spec. When PM
14038  * invokes this method, it restores the device's PCI config space state and
14039  * fully reinitializes the device and brings it online. Note that as the
14040  * driver implements the minimum PM requirements to a power-aware driver's
14041  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
14042  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
14043  * driver will fully reinitialize its device during resume() method call,
14044  * the device will be set to PCI_D0 directly in PCI config space before
14045  * restoring the state.
14046  *
14047  * Return code
14048  *      0 - driver suspended the device
14049  *      Error otherwise
14050  **/
14051 static int __maybe_unused
14052 lpfc_pci_resume_one_s3(struct device *dev_d)
14053 {
14054         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14055         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14056         uint32_t intr_mode;
14057         int error;
14058
14059         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14060                         "0452 PCI device Power Management resume.\n");
14061
14062         /* Startup the kernel thread for this host adapter. */
14063         phba->worker_thread = kthread_run(lpfc_do_work, phba,
14064                                         "lpfc_worker_%d", phba->brd_no);
14065         if (IS_ERR(phba->worker_thread)) {
14066                 error = PTR_ERR(phba->worker_thread);
14067                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14068                                 "0434 PM resume failed to start worker "
14069                                 "thread: error=x%x.\n", error);
14070                 return error;
14071         }
14072
14073         /* Configure and enable interrupt */
14074         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
14075         if (intr_mode == LPFC_INTR_ERROR) {
14076                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14077                                 "0430 PM resume Failed to enable interrupt\n");
14078                 return -EIO;
14079         } else
14080                 phba->intr_mode = intr_mode;
14081
14082         /* Restart HBA and bring it online */
14083         lpfc_sli_brdrestart(phba);
14084         lpfc_online(phba);
14085
14086         /* Log the current active interrupt mode */
14087         lpfc_log_intr_mode(phba, phba->intr_mode);
14088
14089         return 0;
14090 }
14091
14092 /**
14093  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
14094  * @phba: pointer to lpfc hba data structure.
14095  *
14096  * This routine is called to prepare the SLI3 device for PCI slot recover. It
14097  * aborts all the outstanding SCSI I/Os to the pci device.
14098  **/
14099 static void
14100 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
14101 {
14102         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14103                         "2723 PCI channel I/O abort preparing for recovery\n");
14104
14105         /*
14106          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
14107          * and let the SCSI mid-layer to retry them to recover.
14108          */
14109         lpfc_sli_abort_fcp_rings(phba);
14110 }
14111
14112 /**
14113  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
14114  * @phba: pointer to lpfc hba data structure.
14115  *
14116  * This routine is called to prepare the SLI3 device for PCI slot reset. It
14117  * disables the device interrupt and pci device, and aborts the internal FCP
14118  * pending I/Os.
14119  **/
14120 static void
14121 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
14122 {
14123         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14124                         "2710 PCI channel disable preparing for reset\n");
14125
14126         /* Block any management I/Os to the device */
14127         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
14128
14129         /* Block all SCSI devices' I/Os on the host */
14130         lpfc_scsi_dev_block(phba);
14131
14132         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
14133         lpfc_sli_flush_io_rings(phba);
14134
14135         /* stop all timers */
14136         lpfc_stop_hba_timers(phba);
14137
14138         /* Disable interrupt and pci device */
14139         lpfc_sli_disable_intr(phba);
14140         pci_disable_device(phba->pcidev);
14141 }
14142
14143 /**
14144  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
14145  * @phba: pointer to lpfc hba data structure.
14146  *
14147  * This routine is called to prepare the SLI3 device for PCI slot permanently
14148  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
14149  * pending I/Os.
14150  **/
14151 static void
14152 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
14153 {
14154         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14155                         "2711 PCI channel permanent disable for failure\n");
14156         /* Block all SCSI devices' I/Os on the host */
14157         lpfc_scsi_dev_block(phba);
14158
14159         /* stop all timers */
14160         lpfc_stop_hba_timers(phba);
14161
14162         /* Clean up all driver's outstanding SCSI I/Os */
14163         lpfc_sli_flush_io_rings(phba);
14164 }
14165
14166 /**
14167  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
14168  * @pdev: pointer to PCI device.
14169  * @state: the current PCI connection state.
14170  *
14171  * This routine is called from the PCI subsystem for I/O error handling to
14172  * device with SLI-3 interface spec. This function is called by the PCI
14173  * subsystem after a PCI bus error affecting this device has been detected.
14174  * When this function is invoked, it will need to stop all the I/Os and
14175  * interrupt(s) to the device. Once that is done, it will return
14176  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
14177  * as desired.
14178  *
14179  * Return codes
14180  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
14181  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
14182  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
14183  **/
14184 static pci_ers_result_t
14185 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
14186 {
14187         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14188         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14189
14190         switch (state) {
14191         case pci_channel_io_normal:
14192                 /* Non-fatal error, prepare for recovery */
14193                 lpfc_sli_prep_dev_for_recover(phba);
14194                 return PCI_ERS_RESULT_CAN_RECOVER;
14195         case pci_channel_io_frozen:
14196                 /* Fatal error, prepare for slot reset */
14197                 lpfc_sli_prep_dev_for_reset(phba);
14198                 return PCI_ERS_RESULT_NEED_RESET;
14199         case pci_channel_io_perm_failure:
14200                 /* Permanent failure, prepare for device down */
14201                 lpfc_sli_prep_dev_for_perm_failure(phba);
14202                 return PCI_ERS_RESULT_DISCONNECT;
14203         default:
14204                 /* Unknown state, prepare and request slot reset */
14205                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14206                                 "0472 Unknown PCI error state: x%x\n", state);
14207                 lpfc_sli_prep_dev_for_reset(phba);
14208                 return PCI_ERS_RESULT_NEED_RESET;
14209         }
14210 }
14211
14212 /**
14213  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
14214  * @pdev: pointer to PCI device.
14215  *
14216  * This routine is called from the PCI subsystem for error handling to
14217  * device with SLI-3 interface spec. This is called after PCI bus has been
14218  * reset to restart the PCI card from scratch, as if from a cold-boot.
14219  * During the PCI subsystem error recovery, after driver returns
14220  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
14221  * recovery and then call this routine before calling the .resume method
14222  * to recover the device. This function will initialize the HBA device,
14223  * enable the interrupt, but it will just put the HBA to offline state
14224  * without passing any I/O traffic.
14225  *
14226  * Return codes
14227  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
14228  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
14229  */
14230 static pci_ers_result_t
14231 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
14232 {
14233         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14234         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14235         struct lpfc_sli *psli = &phba->sli;
14236         uint32_t intr_mode;
14237
14238         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
14239         if (pci_enable_device_mem(pdev)) {
14240                 printk(KERN_ERR "lpfc: Cannot re-enable "
14241                         "PCI device after reset.\n");
14242                 return PCI_ERS_RESULT_DISCONNECT;
14243         }
14244
14245         pci_restore_state(pdev);
14246
14247         /*
14248          * As the new kernel behavior of pci_restore_state() API call clears
14249          * device saved_state flag, need to save the restored state again.
14250          */
14251         pci_save_state(pdev);
14252
14253         if (pdev->is_busmaster)
14254                 pci_set_master(pdev);
14255
14256         spin_lock_irq(&phba->hbalock);
14257         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
14258         spin_unlock_irq(&phba->hbalock);
14259
14260         /* Configure and enable interrupt */
14261         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
14262         if (intr_mode == LPFC_INTR_ERROR) {
14263                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14264                                 "0427 Cannot re-enable interrupt after "
14265                                 "slot reset.\n");
14266                 return PCI_ERS_RESULT_DISCONNECT;
14267         } else
14268                 phba->intr_mode = intr_mode;
14269
14270         /* Take device offline, it will perform cleanup */
14271         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14272         lpfc_offline(phba);
14273         lpfc_sli_brdrestart(phba);
14274
14275         /* Log the current active interrupt mode */
14276         lpfc_log_intr_mode(phba, phba->intr_mode);
14277
14278         return PCI_ERS_RESULT_RECOVERED;
14279 }
14280
14281 /**
14282  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
14283  * @pdev: pointer to PCI device
14284  *
14285  * This routine is called from the PCI subsystem for error handling to device
14286  * with SLI-3 interface spec. It is called when kernel error recovery tells
14287  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
14288  * error recovery. After this call, traffic can start to flow from this device
14289  * again.
14290  */
14291 static void
14292 lpfc_io_resume_s3(struct pci_dev *pdev)
14293 {
14294         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14295         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14296
14297         /* Bring device online, it will be no-op for non-fatal error resume */
14298         lpfc_online(phba);
14299 }
14300
14301 /**
14302  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
14303  * @phba: pointer to lpfc hba data structure.
14304  *
14305  * returns the number of ELS/CT IOCBs to reserve
14306  **/
14307 int
14308 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
14309 {
14310         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
14311
14312         if (phba->sli_rev == LPFC_SLI_REV4) {
14313                 if (max_xri <= 100)
14314                         return 10;
14315                 else if (max_xri <= 256)
14316                         return 25;
14317                 else if (max_xri <= 512)
14318                         return 50;
14319                 else if (max_xri <= 1024)
14320                         return 100;
14321                 else if (max_xri <= 1536)
14322                         return 150;
14323                 else if (max_xri <= 2048)
14324                         return 200;
14325                 else
14326                         return 250;
14327         } else
14328                 return 0;
14329 }
14330
14331 /**
14332  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
14333  * @phba: pointer to lpfc hba data structure.
14334  *
14335  * returns the number of ELS/CT + NVMET IOCBs to reserve
14336  **/
14337 int
14338 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
14339 {
14340         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
14341
14342         if (phba->nvmet_support)
14343                 max_xri += LPFC_NVMET_BUF_POST;
14344         return max_xri;
14345 }
14346
14347
14348 static int
14349 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
14350         uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
14351         const struct firmware *fw)
14352 {
14353         int rc;
14354         u8 sli_family;
14355
14356         sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
14357         /* Three cases:  (1) FW was not supported on the detected adapter.
14358          * (2) FW update has been locked out administratively.
14359          * (3) Some other error during FW update.
14360          * In each case, an unmaskable message is written to the console
14361          * for admin diagnosis.
14362          */
14363         if (offset == ADD_STATUS_FW_NOT_SUPPORTED ||
14364             (sli_family == LPFC_SLI_INTF_FAMILY_G6 &&
14365              magic_number != MAGIC_NUMBER_G6) ||
14366             (sli_family == LPFC_SLI_INTF_FAMILY_G7 &&
14367              magic_number != MAGIC_NUMBER_G7) ||
14368             (sli_family == LPFC_SLI_INTF_FAMILY_G7P &&
14369              magic_number != MAGIC_NUMBER_G7P)) {
14370                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14371                                 "3030 This firmware version is not supported on"
14372                                 " this HBA model. Device:%x Magic:%x Type:%x "
14373                                 "ID:%x Size %d %zd\n",
14374                                 phba->pcidev->device, magic_number, ftype, fid,
14375                                 fsize, fw->size);
14376                 rc = -EINVAL;
14377         } else if (offset == ADD_STATUS_FW_DOWNLOAD_HW_DISABLED) {
14378                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14379                                 "3021 Firmware downloads have been prohibited "
14380                                 "by a system configuration setting on "
14381                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
14382                                 "%zd\n",
14383                                 phba->pcidev->device, magic_number, ftype, fid,
14384                                 fsize, fw->size);
14385                 rc = -EACCES;
14386         } else {
14387                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14388                                 "3022 FW Download failed. Add Status x%x "
14389                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
14390                                 "%zd\n",
14391                                 offset, phba->pcidev->device, magic_number,
14392                                 ftype, fid, fsize, fw->size);
14393                 rc = -EIO;
14394         }
14395         return rc;
14396 }
14397
14398 /**
14399  * lpfc_write_firmware - attempt to write a firmware image to the port
14400  * @fw: pointer to firmware image returned from request_firmware.
14401  * @context: pointer to firmware image returned from request_firmware.
14402  *
14403  **/
14404 static void
14405 lpfc_write_firmware(const struct firmware *fw, void *context)
14406 {
14407         struct lpfc_hba *phba = (struct lpfc_hba *)context;
14408         char fwrev[FW_REV_STR_SIZE];
14409         struct lpfc_grp_hdr *image;
14410         struct list_head dma_buffer_list;
14411         int i, rc = 0;
14412         struct lpfc_dmabuf *dmabuf, *next;
14413         uint32_t offset = 0, temp_offset = 0;
14414         uint32_t magic_number, ftype, fid, fsize;
14415
14416         /* It can be null in no-wait mode, sanity check */
14417         if (!fw) {
14418                 rc = -ENXIO;
14419                 goto out;
14420         }
14421         image = (struct lpfc_grp_hdr *)fw->data;
14422
14423         magic_number = be32_to_cpu(image->magic_number);
14424         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
14425         fid = bf_get_be32(lpfc_grp_hdr_id, image);
14426         fsize = be32_to_cpu(image->size);
14427
14428         INIT_LIST_HEAD(&dma_buffer_list);
14429         lpfc_decode_firmware_rev(phba, fwrev, 1);
14430         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
14431                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14432                                 "3023 Updating Firmware, Current Version:%s "
14433                                 "New Version:%s\n",
14434                                 fwrev, image->revision);
14435                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
14436                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
14437                                          GFP_KERNEL);
14438                         if (!dmabuf) {
14439                                 rc = -ENOMEM;
14440                                 goto release_out;
14441                         }
14442                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
14443                                                           SLI4_PAGE_SIZE,
14444                                                           &dmabuf->phys,
14445                                                           GFP_KERNEL);
14446                         if (!dmabuf->virt) {
14447                                 kfree(dmabuf);
14448                                 rc = -ENOMEM;
14449                                 goto release_out;
14450                         }
14451                         list_add_tail(&dmabuf->list, &dma_buffer_list);
14452                 }
14453                 while (offset < fw->size) {
14454                         temp_offset = offset;
14455                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
14456                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
14457                                         memcpy(dmabuf->virt,
14458                                                fw->data + temp_offset,
14459                                                fw->size - temp_offset);
14460                                         temp_offset = fw->size;
14461                                         break;
14462                                 }
14463                                 memcpy(dmabuf->virt, fw->data + temp_offset,
14464                                        SLI4_PAGE_SIZE);
14465                                 temp_offset += SLI4_PAGE_SIZE;
14466                         }
14467                         rc = lpfc_wr_object(phba, &dma_buffer_list,
14468                                     (fw->size - offset), &offset);
14469                         if (rc) {
14470                                 rc = lpfc_log_write_firmware_error(phba, offset,
14471                                                                    magic_number,
14472                                                                    ftype,
14473                                                                    fid,
14474                                                                    fsize,
14475                                                                    fw);
14476                                 goto release_out;
14477                         }
14478                 }
14479                 rc = offset;
14480         } else
14481                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14482                                 "3029 Skipped Firmware update, Current "
14483                                 "Version:%s New Version:%s\n",
14484                                 fwrev, image->revision);
14485
14486 release_out:
14487         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
14488                 list_del(&dmabuf->list);
14489                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
14490                                   dmabuf->virt, dmabuf->phys);
14491                 kfree(dmabuf);
14492         }
14493         release_firmware(fw);
14494 out:
14495         if (rc < 0)
14496                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14497                                 "3062 Firmware update error, status %d.\n", rc);
14498         else
14499                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14500                                 "3024 Firmware update success: size %d.\n", rc);
14501 }
14502
14503 /**
14504  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
14505  * @phba: pointer to lpfc hba data structure.
14506  * @fw_upgrade: which firmware to update.
14507  *
14508  * This routine is called to perform Linux generic firmware upgrade on device
14509  * that supports such feature.
14510  **/
14511 int
14512 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
14513 {
14514         uint8_t file_name[ELX_MODEL_NAME_SIZE];
14515         int ret;
14516         const struct firmware *fw;
14517
14518         /* Only supported on SLI4 interface type 2 for now */
14519         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
14520             LPFC_SLI_INTF_IF_TYPE_2)
14521                 return -EPERM;
14522
14523         snprintf(file_name, ELX_MODEL_NAME_SIZE, "/*(DEBLOBBED)*/", phba->ModelName);
14524
14525         if (fw_upgrade == INT_FW_UPGRADE) {
14526                 ret = reject_firmware_nowait(THIS_MODULE, FW_ACTION_UEVENT,
14527                                         file_name, &phba->pcidev->dev,
14528                                         GFP_KERNEL, (void *)phba,
14529                                         lpfc_write_firmware);
14530         } else if (fw_upgrade == RUN_FW_UPGRADE) {
14531                 ret = reject_firmware(&fw, file_name, &phba->pcidev->dev);
14532                 if (!ret)
14533                         lpfc_write_firmware(fw, (void *)phba);
14534         } else {
14535                 ret = -EINVAL;
14536         }
14537
14538         return ret;
14539 }
14540
14541 /**
14542  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
14543  * @pdev: pointer to PCI device
14544  * @pid: pointer to PCI device identifier
14545  *
14546  * This routine is called from the kernel's PCI subsystem to device with
14547  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
14548  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
14549  * information of the device and driver to see if the driver state that it
14550  * can support this kind of device. If the match is successful, the driver
14551  * core invokes this routine. If this routine determines it can claim the HBA,
14552  * it does all the initialization that it needs to do to handle the HBA
14553  * properly.
14554  *
14555  * Return code
14556  *      0 - driver can claim the device
14557  *      negative value - driver can not claim the device
14558  **/
14559 static int
14560 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
14561 {
14562         struct lpfc_hba   *phba;
14563         struct lpfc_vport *vport = NULL;
14564         struct Scsi_Host  *shost = NULL;
14565         int error;
14566         uint32_t cfg_mode, intr_mode;
14567
14568         /* Allocate memory for HBA structure */
14569         phba = lpfc_hba_alloc(pdev);
14570         if (!phba)
14571                 return -ENOMEM;
14572
14573         INIT_LIST_HEAD(&phba->poll_list);
14574
14575         /* Perform generic PCI device enabling operation */
14576         error = lpfc_enable_pci_dev(phba);
14577         if (error)
14578                 goto out_free_phba;
14579
14580         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
14581         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
14582         if (error)
14583                 goto out_disable_pci_dev;
14584
14585         /* Set up SLI-4 specific device PCI memory space */
14586         error = lpfc_sli4_pci_mem_setup(phba);
14587         if (error) {
14588                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14589                                 "1410 Failed to set up pci memory space.\n");
14590                 goto out_disable_pci_dev;
14591         }
14592
14593         /* Set up SLI-4 Specific device driver resources */
14594         error = lpfc_sli4_driver_resource_setup(phba);
14595         if (error) {
14596                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14597                                 "1412 Failed to set up driver resource.\n");
14598                 goto out_unset_pci_mem_s4;
14599         }
14600
14601         INIT_LIST_HEAD(&phba->active_rrq_list);
14602         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
14603
14604         /* Set up common device driver resources */
14605         error = lpfc_setup_driver_resource_phase2(phba);
14606         if (error) {
14607                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14608                                 "1414 Failed to set up driver resource.\n");
14609                 goto out_unset_driver_resource_s4;
14610         }
14611
14612         /* Get the default values for Model Name and Description */
14613         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
14614
14615         /* Now, trying to enable interrupt and bring up the device */
14616         cfg_mode = phba->cfg_use_msi;
14617
14618         /* Put device to a known state before enabling interrupt */
14619         phba->pport = NULL;
14620         lpfc_stop_port(phba);
14621
14622         /* Init cpu_map array */
14623         lpfc_cpu_map_array_init(phba);
14624
14625         /* Init hba_eq_hdl array */
14626         lpfc_hba_eq_hdl_array_init(phba);
14627
14628         /* Configure and enable interrupt */
14629         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
14630         if (intr_mode == LPFC_INTR_ERROR) {
14631                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14632                                 "0426 Failed to enable interrupt.\n");
14633                 error = -ENODEV;
14634                 goto out_unset_driver_resource;
14635         }
14636         /* Default to single EQ for non-MSI-X */
14637         if (phba->intr_type != MSIX) {
14638                 phba->cfg_irq_chann = 1;
14639                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
14640                         if (phba->nvmet_support)
14641                                 phba->cfg_nvmet_mrq = 1;
14642                 }
14643         }
14644         lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
14645
14646         /* Create SCSI host to the physical port */
14647         error = lpfc_create_shost(phba);
14648         if (error) {
14649                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14650                                 "1415 Failed to create scsi host.\n");
14651                 goto out_disable_intr;
14652         }
14653         vport = phba->pport;
14654         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
14655
14656         /* Configure sysfs attributes */
14657         error = lpfc_alloc_sysfs_attr(vport);
14658         if (error) {
14659                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14660                                 "1416 Failed to allocate sysfs attr\n");
14661                 goto out_destroy_shost;
14662         }
14663
14664         /* Set up SLI-4 HBA */
14665         if (lpfc_sli4_hba_setup(phba)) {
14666                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14667                                 "1421 Failed to set up hba\n");
14668                 error = -ENODEV;
14669                 goto out_free_sysfs_attr;
14670         }
14671
14672         /* Log the current active interrupt mode */
14673         phba->intr_mode = intr_mode;
14674         lpfc_log_intr_mode(phba, intr_mode);
14675
14676         /* Perform post initialization setup */
14677         lpfc_post_init_setup(phba);
14678
14679         /* NVME support in FW earlier in the driver load corrects the
14680          * FC4 type making a check for nvme_support unnecessary.
14681          */
14682         if (phba->nvmet_support == 0) {
14683                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
14684                         /* Create NVME binding with nvme_fc_transport. This
14685                          * ensures the vport is initialized.  If the localport
14686                          * create fails, it should not unload the driver to
14687                          * support field issues.
14688                          */
14689                         error = lpfc_nvme_create_localport(vport);
14690                         if (error) {
14691                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14692                                                 "6004 NVME registration "
14693                                                 "failed, error x%x\n",
14694                                                 error);
14695                         }
14696                 }
14697         }
14698
14699         /* check for firmware upgrade or downgrade */
14700         if (phba->cfg_request_firmware_upgrade)
14701                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
14702
14703         /* Check if there are static vports to be created. */
14704         lpfc_create_static_vport(phba);
14705
14706         /* Enable RAS FW log support */
14707         lpfc_sli4_ras_setup(phba);
14708
14709         timer_setup(&phba->cpuhp_poll_timer, lpfc_sli4_poll_hbtimer, 0);
14710         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state, &phba->cpuhp);
14711
14712         return 0;
14713
14714 out_free_sysfs_attr:
14715         lpfc_free_sysfs_attr(vport);
14716 out_destroy_shost:
14717         lpfc_destroy_shost(phba);
14718 out_disable_intr:
14719         lpfc_sli4_disable_intr(phba);
14720 out_unset_driver_resource:
14721         lpfc_unset_driver_resource_phase2(phba);
14722 out_unset_driver_resource_s4:
14723         lpfc_sli4_driver_resource_unset(phba);
14724 out_unset_pci_mem_s4:
14725         lpfc_sli4_pci_mem_unset(phba);
14726 out_disable_pci_dev:
14727         lpfc_disable_pci_dev(phba);
14728         if (shost)
14729                 scsi_host_put(shost);
14730 out_free_phba:
14731         lpfc_hba_free(phba);
14732         return error;
14733 }
14734
14735 /**
14736  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
14737  * @pdev: pointer to PCI device
14738  *
14739  * This routine is called from the kernel's PCI subsystem to device with
14740  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
14741  * removed from PCI bus, it performs all the necessary cleanup for the HBA
14742  * device to be removed from the PCI subsystem properly.
14743  **/
14744 static void
14745 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
14746 {
14747         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14748         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
14749         struct lpfc_vport **vports;
14750         struct lpfc_hba *phba = vport->phba;
14751         int i;
14752
14753         /* Mark the device unloading flag */
14754         spin_lock_irq(&phba->hbalock);
14755         vport->load_flag |= FC_UNLOADING;
14756         spin_unlock_irq(&phba->hbalock);
14757         if (phba->cgn_i)
14758                 lpfc_unreg_congestion_buf(phba);
14759
14760         lpfc_free_sysfs_attr(vport);
14761
14762         /* Release all the vports against this physical port */
14763         vports = lpfc_create_vport_work_array(phba);
14764         if (vports != NULL)
14765                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
14766                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
14767                                 continue;
14768                         fc_vport_terminate(vports[i]->fc_vport);
14769                 }
14770         lpfc_destroy_vport_work_array(phba, vports);
14771
14772         /* Remove FC host with the physical port */
14773         fc_remove_host(shost);
14774         scsi_remove_host(shost);
14775
14776         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
14777          * localports are destroyed after to cleanup all transport memory.
14778          */
14779         lpfc_cleanup(vport);
14780         lpfc_nvmet_destroy_targetport(phba);
14781         lpfc_nvme_destroy_localport(vport);
14782
14783         /* De-allocate multi-XRI pools */
14784         if (phba->cfg_xri_rebalancing)
14785                 lpfc_destroy_multixri_pools(phba);
14786
14787         /*
14788          * Bring down the SLI Layer. This step disables all interrupts,
14789          * clears the rings, discards all mailbox commands, and resets
14790          * the HBA FCoE function.
14791          */
14792         lpfc_debugfs_terminate(vport);
14793
14794         lpfc_stop_hba_timers(phba);
14795         spin_lock_irq(&phba->port_list_lock);
14796         list_del_init(&vport->listentry);
14797         spin_unlock_irq(&phba->port_list_lock);
14798
14799         /* Perform scsi free before driver resource_unset since scsi
14800          * buffers are released to their corresponding pools here.
14801          */
14802         lpfc_io_free(phba);
14803         lpfc_free_iocb_list(phba);
14804         lpfc_sli4_hba_unset(phba);
14805
14806         lpfc_unset_driver_resource_phase2(phba);
14807         lpfc_sli4_driver_resource_unset(phba);
14808
14809         /* Unmap adapter Control and Doorbell registers */
14810         lpfc_sli4_pci_mem_unset(phba);
14811
14812         /* Release PCI resources and disable device's PCI function */
14813         scsi_host_put(shost);
14814         lpfc_disable_pci_dev(phba);
14815
14816         /* Finally, free the driver's device data structure */
14817         lpfc_hba_free(phba);
14818
14819         return;
14820 }
14821
14822 /**
14823  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
14824  * @dev_d: pointer to device
14825  *
14826  * This routine is called from the kernel's PCI subsystem to support system
14827  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
14828  * this method, it quiesces the device by stopping the driver's worker
14829  * thread for the device, turning off device's interrupt and DMA, and bring
14830  * the device offline. Note that as the driver implements the minimum PM
14831  * requirements to a power-aware driver's PM support for suspend/resume -- all
14832  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
14833  * method call will be treated as SUSPEND and the driver will fully
14834  * reinitialize its device during resume() method call, the driver will set
14835  * device to PCI_D3hot state in PCI config space instead of setting it
14836  * according to the @msg provided by the PM.
14837  *
14838  * Return code
14839  *      0 - driver suspended the device
14840  *      Error otherwise
14841  **/
14842 static int __maybe_unused
14843 lpfc_pci_suspend_one_s4(struct device *dev_d)
14844 {
14845         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14846         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14847
14848         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14849                         "2843 PCI device Power Management suspend.\n");
14850
14851         /* Bring down the device */
14852         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14853         lpfc_offline(phba);
14854         kthread_stop(phba->worker_thread);
14855
14856         /* Disable interrupt from device */
14857         lpfc_sli4_disable_intr(phba);
14858         lpfc_sli4_queue_destroy(phba);
14859
14860         return 0;
14861 }
14862
14863 /**
14864  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
14865  * @dev_d: pointer to device
14866  *
14867  * This routine is called from the kernel's PCI subsystem to support system
14868  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
14869  * this method, it restores the device's PCI config space state and fully
14870  * reinitializes the device and brings it online. Note that as the driver
14871  * implements the minimum PM requirements to a power-aware driver's PM for
14872  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
14873  * to the suspend() method call will be treated as SUSPEND and the driver
14874  * will fully reinitialize its device during resume() method call, the device
14875  * will be set to PCI_D0 directly in PCI config space before restoring the
14876  * state.
14877  *
14878  * Return code
14879  *      0 - driver suspended the device
14880  *      Error otherwise
14881  **/
14882 static int __maybe_unused
14883 lpfc_pci_resume_one_s4(struct device *dev_d)
14884 {
14885         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14886         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14887         uint32_t intr_mode;
14888         int error;
14889
14890         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14891                         "0292 PCI device Power Management resume.\n");
14892
14893          /* Startup the kernel thread for this host adapter. */
14894         phba->worker_thread = kthread_run(lpfc_do_work, phba,
14895                                         "lpfc_worker_%d", phba->brd_no);
14896         if (IS_ERR(phba->worker_thread)) {
14897                 error = PTR_ERR(phba->worker_thread);
14898                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14899                                 "0293 PM resume failed to start worker "
14900                                 "thread: error=x%x.\n", error);
14901                 return error;
14902         }
14903
14904         /* Configure and enable interrupt */
14905         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
14906         if (intr_mode == LPFC_INTR_ERROR) {
14907                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14908                                 "0294 PM resume Failed to enable interrupt\n");
14909                 return -EIO;
14910         } else
14911                 phba->intr_mode = intr_mode;
14912
14913         /* Restart HBA and bring it online */
14914         lpfc_sli_brdrestart(phba);
14915         lpfc_online(phba);
14916
14917         /* Log the current active interrupt mode */
14918         lpfc_log_intr_mode(phba, phba->intr_mode);
14919
14920         return 0;
14921 }
14922
14923 /**
14924  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
14925  * @phba: pointer to lpfc hba data structure.
14926  *
14927  * This routine is called to prepare the SLI4 device for PCI slot recover. It
14928  * aborts all the outstanding SCSI I/Os to the pci device.
14929  **/
14930 static void
14931 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
14932 {
14933         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14934                         "2828 PCI channel I/O abort preparing for recovery\n");
14935         /*
14936          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
14937          * and let the SCSI mid-layer to retry them to recover.
14938          */
14939         lpfc_sli_abort_fcp_rings(phba);
14940 }
14941
14942 /**
14943  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
14944  * @phba: pointer to lpfc hba data structure.
14945  *
14946  * This routine is called to prepare the SLI4 device for PCI slot reset. It
14947  * disables the device interrupt and pci device, and aborts the internal FCP
14948  * pending I/Os.
14949  **/
14950 static void
14951 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
14952 {
14953         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14954                         "2826 PCI channel disable preparing for reset\n");
14955
14956         /* Block any management I/Os to the device */
14957         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
14958
14959         /* Block all SCSI devices' I/Os on the host */
14960         lpfc_scsi_dev_block(phba);
14961
14962         /* Flush all driver's outstanding I/Os as we are to reset */
14963         lpfc_sli_flush_io_rings(phba);
14964
14965         /* stop all timers */
14966         lpfc_stop_hba_timers(phba);
14967
14968         /* Disable interrupt and pci device */
14969         lpfc_sli4_disable_intr(phba);
14970         lpfc_sli4_queue_destroy(phba);
14971         pci_disable_device(phba->pcidev);
14972 }
14973
14974 /**
14975  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
14976  * @phba: pointer to lpfc hba data structure.
14977  *
14978  * This routine is called to prepare the SLI4 device for PCI slot permanently
14979  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
14980  * pending I/Os.
14981  **/
14982 static void
14983 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
14984 {
14985         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14986                         "2827 PCI channel permanent disable for failure\n");
14987
14988         /* Block all SCSI devices' I/Os on the host */
14989         lpfc_scsi_dev_block(phba);
14990
14991         /* stop all timers */
14992         lpfc_stop_hba_timers(phba);
14993
14994         /* Clean up all driver's outstanding I/Os */
14995         lpfc_sli_flush_io_rings(phba);
14996 }
14997
14998 /**
14999  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
15000  * @pdev: pointer to PCI device.
15001  * @state: the current PCI connection state.
15002  *
15003  * This routine is called from the PCI subsystem for error handling to device
15004  * with SLI-4 interface spec. This function is called by the PCI subsystem
15005  * after a PCI bus error affecting this device has been detected. When this
15006  * function is invoked, it will need to stop all the I/Os and interrupt(s)
15007  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
15008  * for the PCI subsystem to perform proper recovery as desired.
15009  *
15010  * Return codes
15011  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
15012  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15013  **/
15014 static pci_ers_result_t
15015 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
15016 {
15017         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15018         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15019
15020         switch (state) {
15021         case pci_channel_io_normal:
15022                 /* Non-fatal error, prepare for recovery */
15023                 lpfc_sli4_prep_dev_for_recover(phba);
15024                 return PCI_ERS_RESULT_CAN_RECOVER;
15025         case pci_channel_io_frozen:
15026                 /* Fatal error, prepare for slot reset */
15027                 lpfc_sli4_prep_dev_for_reset(phba);
15028                 return PCI_ERS_RESULT_NEED_RESET;
15029         case pci_channel_io_perm_failure:
15030                 /* Permanent failure, prepare for device down */
15031                 lpfc_sli4_prep_dev_for_perm_failure(phba);
15032                 return PCI_ERS_RESULT_DISCONNECT;
15033         default:
15034                 /* Unknown state, prepare and request slot reset */
15035                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15036                                 "2825 Unknown PCI error state: x%x\n", state);
15037                 lpfc_sli4_prep_dev_for_reset(phba);
15038                 return PCI_ERS_RESULT_NEED_RESET;
15039         }
15040 }
15041
15042 /**
15043  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
15044  * @pdev: pointer to PCI device.
15045  *
15046  * This routine is called from the PCI subsystem for error handling to device
15047  * with SLI-4 interface spec. It is called after PCI bus has been reset to
15048  * restart the PCI card from scratch, as if from a cold-boot. During the
15049  * PCI subsystem error recovery, after the driver returns
15050  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
15051  * recovery and then call this routine before calling the .resume method to
15052  * recover the device. This function will initialize the HBA device, enable
15053  * the interrupt, but it will just put the HBA to offline state without
15054  * passing any I/O traffic.
15055  *
15056  * Return codes
15057  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
15058  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15059  */
15060 static pci_ers_result_t
15061 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
15062 {
15063         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15064         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15065         struct lpfc_sli *psli = &phba->sli;
15066         uint32_t intr_mode;
15067
15068         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
15069         if (pci_enable_device_mem(pdev)) {
15070                 printk(KERN_ERR "lpfc: Cannot re-enable "
15071                         "PCI device after reset.\n");
15072                 return PCI_ERS_RESULT_DISCONNECT;
15073         }
15074
15075         pci_restore_state(pdev);
15076
15077         /*
15078          * As the new kernel behavior of pci_restore_state() API call clears
15079          * device saved_state flag, need to save the restored state again.
15080          */
15081         pci_save_state(pdev);
15082
15083         if (pdev->is_busmaster)
15084                 pci_set_master(pdev);
15085
15086         spin_lock_irq(&phba->hbalock);
15087         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
15088         spin_unlock_irq(&phba->hbalock);
15089
15090         /* Init cpu_map array */
15091         lpfc_cpu_map_array_init(phba);
15092         /* Configure and enable interrupt */
15093         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
15094         if (intr_mode == LPFC_INTR_ERROR) {
15095                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15096                                 "2824 Cannot re-enable interrupt after "
15097                                 "slot reset.\n");
15098                 return PCI_ERS_RESULT_DISCONNECT;
15099         } else
15100                 phba->intr_mode = intr_mode;
15101
15102         /* Log the current active interrupt mode */
15103         lpfc_log_intr_mode(phba, phba->intr_mode);
15104
15105         return PCI_ERS_RESULT_RECOVERED;
15106 }
15107
15108 /**
15109  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
15110  * @pdev: pointer to PCI device
15111  *
15112  * This routine is called from the PCI subsystem for error handling to device
15113  * with SLI-4 interface spec. It is called when kernel error recovery tells
15114  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
15115  * error recovery. After this call, traffic can start to flow from this device
15116  * again.
15117  **/
15118 static void
15119 lpfc_io_resume_s4(struct pci_dev *pdev)
15120 {
15121         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15122         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15123
15124         /*
15125          * In case of slot reset, as function reset is performed through
15126          * mailbox command which needs DMA to be enabled, this operation
15127          * has to be moved to the io resume phase. Taking device offline
15128          * will perform the necessary cleanup.
15129          */
15130         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
15131                 /* Perform device reset */
15132                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
15133                 lpfc_offline(phba);
15134                 lpfc_sli_brdrestart(phba);
15135                 /* Bring the device back online */
15136                 lpfc_online(phba);
15137         }
15138 }
15139
15140 /**
15141  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
15142  * @pdev: pointer to PCI device
15143  * @pid: pointer to PCI device identifier
15144  *
15145  * This routine is to be registered to the kernel's PCI subsystem. When an
15146  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
15147  * at PCI device-specific information of the device and driver to see if the
15148  * driver state that it can support this kind of device. If the match is
15149  * successful, the driver core invokes this routine. This routine dispatches
15150  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
15151  * do all the initialization that it needs to do to handle the HBA device
15152  * properly.
15153  *
15154  * Return code
15155  *      0 - driver can claim the device
15156  *      negative value - driver can not claim the device
15157  **/
15158 static int
15159 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
15160 {
15161         int rc;
15162         struct lpfc_sli_intf intf;
15163
15164         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
15165                 return -ENODEV;
15166
15167         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
15168             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
15169                 rc = lpfc_pci_probe_one_s4(pdev, pid);
15170         else
15171                 rc = lpfc_pci_probe_one_s3(pdev, pid);
15172
15173         return rc;
15174 }
15175
15176 /**
15177  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
15178  * @pdev: pointer to PCI device
15179  *
15180  * This routine is to be registered to the kernel's PCI subsystem. When an
15181  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
15182  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
15183  * remove routine, which will perform all the necessary cleanup for the
15184  * device to be removed from the PCI subsystem properly.
15185  **/
15186 static void
15187 lpfc_pci_remove_one(struct pci_dev *pdev)
15188 {
15189         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15190         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15191
15192         switch (phba->pci_dev_grp) {
15193         case LPFC_PCI_DEV_LP:
15194                 lpfc_pci_remove_one_s3(pdev);
15195                 break;
15196         case LPFC_PCI_DEV_OC:
15197                 lpfc_pci_remove_one_s4(pdev);
15198                 break;
15199         default:
15200                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15201                                 "1424 Invalid PCI device group: 0x%x\n",
15202                                 phba->pci_dev_grp);
15203                 break;
15204         }
15205         return;
15206 }
15207
15208 /**
15209  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
15210  * @dev: pointer to device
15211  *
15212  * This routine is to be registered to the kernel's PCI subsystem to support
15213  * system Power Management (PM). When PM invokes this method, it dispatches
15214  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
15215  * suspend the device.
15216  *
15217  * Return code
15218  *      0 - driver suspended the device
15219  *      Error otherwise
15220  **/
15221 static int __maybe_unused
15222 lpfc_pci_suspend_one(struct device *dev)
15223 {
15224         struct Scsi_Host *shost = dev_get_drvdata(dev);
15225         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15226         int rc = -ENODEV;
15227
15228         switch (phba->pci_dev_grp) {
15229         case LPFC_PCI_DEV_LP:
15230                 rc = lpfc_pci_suspend_one_s3(dev);
15231                 break;
15232         case LPFC_PCI_DEV_OC:
15233                 rc = lpfc_pci_suspend_one_s4(dev);
15234                 break;
15235         default:
15236                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15237                                 "1425 Invalid PCI device group: 0x%x\n",
15238                                 phba->pci_dev_grp);
15239                 break;
15240         }
15241         return rc;
15242 }
15243
15244 /**
15245  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
15246  * @dev: pointer to device
15247  *
15248  * This routine is to be registered to the kernel's PCI subsystem to support
15249  * system Power Management (PM). When PM invokes this method, it dispatches
15250  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
15251  * resume the device.
15252  *
15253  * Return code
15254  *      0 - driver suspended the device
15255  *      Error otherwise
15256  **/
15257 static int __maybe_unused
15258 lpfc_pci_resume_one(struct device *dev)
15259 {
15260         struct Scsi_Host *shost = dev_get_drvdata(dev);
15261         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15262         int rc = -ENODEV;
15263
15264         switch (phba->pci_dev_grp) {
15265         case LPFC_PCI_DEV_LP:
15266                 rc = lpfc_pci_resume_one_s3(dev);
15267                 break;
15268         case LPFC_PCI_DEV_OC:
15269                 rc = lpfc_pci_resume_one_s4(dev);
15270                 break;
15271         default:
15272                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15273                                 "1426 Invalid PCI device group: 0x%x\n",
15274                                 phba->pci_dev_grp);
15275                 break;
15276         }
15277         return rc;
15278 }
15279
15280 /**
15281  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
15282  * @pdev: pointer to PCI device.
15283  * @state: the current PCI connection state.
15284  *
15285  * This routine is registered to the PCI subsystem for error handling. This
15286  * function is called by the PCI subsystem after a PCI bus error affecting
15287  * this device has been detected. When this routine is invoked, it dispatches
15288  * the action to the proper SLI-3 or SLI-4 device error detected handling
15289  * routine, which will perform the proper error detected operation.
15290  *
15291  * Return codes
15292  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
15293  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15294  **/
15295 static pci_ers_result_t
15296 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
15297 {
15298         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15299         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15300         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
15301
15302         switch (phba->pci_dev_grp) {
15303         case LPFC_PCI_DEV_LP:
15304                 rc = lpfc_io_error_detected_s3(pdev, state);
15305                 break;
15306         case LPFC_PCI_DEV_OC:
15307                 rc = lpfc_io_error_detected_s4(pdev, state);
15308                 break;
15309         default:
15310                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15311                                 "1427 Invalid PCI device group: 0x%x\n",
15312                                 phba->pci_dev_grp);
15313                 break;
15314         }
15315         return rc;
15316 }
15317
15318 /**
15319  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
15320  * @pdev: pointer to PCI device.
15321  *
15322  * This routine is registered to the PCI subsystem for error handling. This
15323  * function is called after PCI bus has been reset to restart the PCI card
15324  * from scratch, as if from a cold-boot. When this routine is invoked, it
15325  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
15326  * routine, which will perform the proper device reset.
15327  *
15328  * Return codes
15329  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
15330  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15331  **/
15332 static pci_ers_result_t
15333 lpfc_io_slot_reset(struct pci_dev *pdev)
15334 {
15335         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15336         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15337         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
15338
15339         switch (phba->pci_dev_grp) {
15340         case LPFC_PCI_DEV_LP:
15341                 rc = lpfc_io_slot_reset_s3(pdev);
15342                 break;
15343         case LPFC_PCI_DEV_OC:
15344                 rc = lpfc_io_slot_reset_s4(pdev);
15345                 break;
15346         default:
15347                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15348                                 "1428 Invalid PCI device group: 0x%x\n",
15349                                 phba->pci_dev_grp);
15350                 break;
15351         }
15352         return rc;
15353 }
15354
15355 /**
15356  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
15357  * @pdev: pointer to PCI device
15358  *
15359  * This routine is registered to the PCI subsystem for error handling. It
15360  * is called when kernel error recovery tells the lpfc driver that it is
15361  * OK to resume normal PCI operation after PCI bus error recovery. When
15362  * this routine is invoked, it dispatches the action to the proper SLI-3
15363  * or SLI-4 device io_resume routine, which will resume the device operation.
15364  **/
15365 static void
15366 lpfc_io_resume(struct pci_dev *pdev)
15367 {
15368         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15369         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15370
15371         switch (phba->pci_dev_grp) {
15372         case LPFC_PCI_DEV_LP:
15373                 lpfc_io_resume_s3(pdev);
15374                 break;
15375         case LPFC_PCI_DEV_OC:
15376                 lpfc_io_resume_s4(pdev);
15377                 break;
15378         default:
15379                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15380                                 "1429 Invalid PCI device group: 0x%x\n",
15381                                 phba->pci_dev_grp);
15382                 break;
15383         }
15384         return;
15385 }
15386
15387 /**
15388  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
15389  * @phba: pointer to lpfc hba data structure.
15390  *
15391  * This routine checks to see if OAS is supported for this adapter. If
15392  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
15393  * the enable oas flag is cleared and the pool created for OAS device data
15394  * is destroyed.
15395  *
15396  **/
15397 static void
15398 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
15399 {
15400
15401         if (!phba->cfg_EnableXLane)
15402                 return;
15403
15404         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
15405                 phba->cfg_fof = 1;
15406         } else {
15407                 phba->cfg_fof = 0;
15408                 mempool_destroy(phba->device_data_mem_pool);
15409                 phba->device_data_mem_pool = NULL;
15410         }
15411
15412         return;
15413 }
15414
15415 /**
15416  * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
15417  * @phba: pointer to lpfc hba data structure.
15418  *
15419  * This routine checks to see if RAS is supported by the adapter. Check the
15420  * function through which RAS support enablement is to be done.
15421  **/
15422 void
15423 lpfc_sli4_ras_init(struct lpfc_hba *phba)
15424 {
15425         /* if ASIC_GEN_NUM >= 0xC) */
15426         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
15427                     LPFC_SLI_INTF_IF_TYPE_6) ||
15428             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
15429                     LPFC_SLI_INTF_FAMILY_G6)) {
15430                 phba->ras_fwlog.ras_hwsupport = true;
15431                 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
15432                     phba->cfg_ras_fwlog_buffsize)
15433                         phba->ras_fwlog.ras_enabled = true;
15434                 else
15435                         phba->ras_fwlog.ras_enabled = false;
15436         } else {
15437                 phba->ras_fwlog.ras_hwsupport = false;
15438         }
15439 }
15440
15441
15442 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
15443
15444 static const struct pci_error_handlers lpfc_err_handler = {
15445         .error_detected = lpfc_io_error_detected,
15446         .slot_reset = lpfc_io_slot_reset,
15447         .resume = lpfc_io_resume,
15448 };
15449
15450 static SIMPLE_DEV_PM_OPS(lpfc_pci_pm_ops_one,
15451                          lpfc_pci_suspend_one,
15452                          lpfc_pci_resume_one);
15453
15454 static struct pci_driver lpfc_driver = {
15455         .name           = LPFC_DRIVER_NAME,
15456         .id_table       = lpfc_id_table,
15457         .probe          = lpfc_pci_probe_one,
15458         .remove         = lpfc_pci_remove_one,
15459         .shutdown       = lpfc_pci_remove_one,
15460         .driver.pm      = &lpfc_pci_pm_ops_one,
15461         .err_handler    = &lpfc_err_handler,
15462 };
15463
15464 static const struct file_operations lpfc_mgmt_fop = {
15465         .owner = THIS_MODULE,
15466 };
15467
15468 static struct miscdevice lpfc_mgmt_dev = {
15469         .minor = MISC_DYNAMIC_MINOR,
15470         .name = "lpfcmgmt",
15471         .fops = &lpfc_mgmt_fop,
15472 };
15473
15474 /**
15475  * lpfc_init - lpfc module initialization routine
15476  *
15477  * This routine is to be invoked when the lpfc module is loaded into the
15478  * kernel. The special kernel macro module_init() is used to indicate the
15479  * role of this routine to the kernel as lpfc module entry point.
15480  *
15481  * Return codes
15482  *   0 - successful
15483  *   -ENOMEM - FC attach transport failed
15484  *   all others - failed
15485  */
15486 static int __init
15487 lpfc_init(void)
15488 {
15489         int error = 0;
15490
15491         pr_info(LPFC_MODULE_DESC "\n");
15492         pr_info(LPFC_COPYRIGHT "\n");
15493
15494         error = misc_register(&lpfc_mgmt_dev);
15495         if (error)
15496                 printk(KERN_ERR "Could not register lpfcmgmt device, "
15497                         "misc_register returned with status %d", error);
15498
15499         error = -ENOMEM;
15500         lpfc_transport_functions.vport_create = lpfc_vport_create;
15501         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
15502         lpfc_transport_template =
15503                                 fc_attach_transport(&lpfc_transport_functions);
15504         if (lpfc_transport_template == NULL)
15505                 goto unregister;
15506         lpfc_vport_transport_template =
15507                 fc_attach_transport(&lpfc_vport_transport_functions);
15508         if (lpfc_vport_transport_template == NULL) {
15509                 fc_release_transport(lpfc_transport_template);
15510                 goto unregister;
15511         }
15512         lpfc_wqe_cmd_template();
15513         lpfc_nvmet_cmd_template();
15514
15515         /* Initialize in case vector mapping is needed */
15516         lpfc_present_cpu = num_present_cpus();
15517
15518         error = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN,
15519                                         "lpfc/sli4:online",
15520                                         lpfc_cpu_online, lpfc_cpu_offline);
15521         if (error < 0)
15522                 goto cpuhp_failure;
15523         lpfc_cpuhp_state = error;
15524
15525         error = pci_register_driver(&lpfc_driver);
15526         if (error)
15527                 goto unwind;
15528
15529         return error;
15530
15531 unwind:
15532         cpuhp_remove_multi_state(lpfc_cpuhp_state);
15533 cpuhp_failure:
15534         fc_release_transport(lpfc_transport_template);
15535         fc_release_transport(lpfc_vport_transport_template);
15536 unregister:
15537         misc_deregister(&lpfc_mgmt_dev);
15538
15539         return error;
15540 }
15541
15542 void lpfc_dmp_dbg(struct lpfc_hba *phba)
15543 {
15544         unsigned int start_idx;
15545         unsigned int dbg_cnt;
15546         unsigned int temp_idx;
15547         int i;
15548         int j = 0;
15549         unsigned long rem_nsec;
15550
15551         if (atomic_cmpxchg(&phba->dbg_log_dmping, 0, 1) != 0)
15552                 return;
15553
15554         start_idx = (unsigned int)atomic_read(&phba->dbg_log_idx) % DBG_LOG_SZ;
15555         dbg_cnt = (unsigned int)atomic_read(&phba->dbg_log_cnt);
15556         if (!dbg_cnt)
15557                 goto out;
15558         temp_idx = start_idx;
15559         if (dbg_cnt >= DBG_LOG_SZ) {
15560                 dbg_cnt = DBG_LOG_SZ;
15561                 temp_idx -= 1;
15562         } else {
15563                 if ((start_idx + dbg_cnt) > (DBG_LOG_SZ - 1)) {
15564                         temp_idx = (start_idx + dbg_cnt) % DBG_LOG_SZ;
15565                 } else {
15566                         if (start_idx < dbg_cnt)
15567                                 start_idx = DBG_LOG_SZ - (dbg_cnt - start_idx);
15568                         else
15569                                 start_idx -= dbg_cnt;
15570                 }
15571         }
15572         dev_info(&phba->pcidev->dev, "start %d end %d cnt %d\n",
15573                  start_idx, temp_idx, dbg_cnt);
15574
15575         for (i = 0; i < dbg_cnt; i++) {
15576                 if ((start_idx + i) < DBG_LOG_SZ)
15577                         temp_idx = (start_idx + i) % DBG_LOG_SZ;
15578                 else
15579                         temp_idx = j++;
15580                 rem_nsec = do_div(phba->dbg_log[temp_idx].t_ns, NSEC_PER_SEC);
15581                 dev_info(&phba->pcidev->dev, "%d: [%5lu.%06lu] %s",
15582                          temp_idx,
15583                          (unsigned long)phba->dbg_log[temp_idx].t_ns,
15584                          rem_nsec / 1000,
15585                          phba->dbg_log[temp_idx].log);
15586         }
15587 out:
15588         atomic_set(&phba->dbg_log_cnt, 0);
15589         atomic_set(&phba->dbg_log_dmping, 0);
15590 }
15591
15592 __printf(2, 3)
15593 void lpfc_dbg_print(struct lpfc_hba *phba, const char *fmt, ...)
15594 {
15595         unsigned int idx;
15596         va_list args;
15597         int dbg_dmping = atomic_read(&phba->dbg_log_dmping);
15598         struct va_format vaf;
15599
15600
15601         va_start(args, fmt);
15602         if (unlikely(dbg_dmping)) {
15603                 vaf.fmt = fmt;
15604                 vaf.va = &args;
15605                 dev_info(&phba->pcidev->dev, "%pV", &vaf);
15606                 va_end(args);
15607                 return;
15608         }
15609         idx = (unsigned int)atomic_fetch_add(1, &phba->dbg_log_idx) %
15610                 DBG_LOG_SZ;
15611
15612         atomic_inc(&phba->dbg_log_cnt);
15613
15614         vscnprintf(phba->dbg_log[idx].log,
15615                    sizeof(phba->dbg_log[idx].log), fmt, args);
15616         va_end(args);
15617
15618         phba->dbg_log[idx].t_ns = local_clock();
15619 }
15620
15621 /**
15622  * lpfc_exit - lpfc module removal routine
15623  *
15624  * This routine is invoked when the lpfc module is removed from the kernel.
15625  * The special kernel macro module_exit() is used to indicate the role of
15626  * this routine to the kernel as lpfc module exit point.
15627  */
15628 static void __exit
15629 lpfc_exit(void)
15630 {
15631         misc_deregister(&lpfc_mgmt_dev);
15632         pci_unregister_driver(&lpfc_driver);
15633         cpuhp_remove_multi_state(lpfc_cpuhp_state);
15634         fc_release_transport(lpfc_transport_template);
15635         fc_release_transport(lpfc_vport_transport_template);
15636         idr_destroy(&lpfc_hba_index);
15637 }
15638
15639 module_init(lpfc_init);
15640 module_exit(lpfc_exit);
15641 MODULE_LICENSE("GPL");
15642 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
15643 MODULE_AUTHOR("Broadcom");
15644 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);