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) 2017-2018 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/bitops.h>
  41
  42 #include <scsi/scsi.h>
  43 #include <scsi/scsi_device.h>
  44 #include <scsi/scsi_host.h>
  45 #include <scsi/scsi_transport_fc.h>
  46 #include <scsi/scsi_tcq.h>
  47 #include <scsi/fc/fc_fs.h>
  48
  49 #include <linux/nvme-fc-driver.h>
  50
  51 #include "lpfc_hw4.h"
  52 #include "lpfc_hw.h"
  53 #include "lpfc_sli.h"
  54 #include "lpfc_sli4.h"
  55 #include "lpfc_nl.h"
  56 #include "lpfc_disc.h"
  57 #include "lpfc.h"
  58 #include "lpfc_scsi.h"
  59 #include "lpfc_nvme.h"
  60 #include "lpfc_nvmet.h"
  61 #include "lpfc_logmsg.h"
  62 #include "lpfc_crtn.h"
  63 #include "lpfc_vport.h"
  64 #include "lpfc_version.h"
  65 #include "lpfc_ids.h"
  66
  67 char *_dump_buf_data;
  68 unsigned long _dump_buf_data_order;
  69 char *_dump_buf_dif;
  70 unsigned long _dump_buf_dif_order;
  71 spinlock_t _dump_buf_lock;
  72
  73 /* Used when mapping IRQ vectors in a driver centric manner */
  74 uint16_t *lpfc_used_cpu;
  75 uint32_t lpfc_present_cpu;
  76
  77 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  78 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  79 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  80 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  81 static int lpfc_setup_endian_order(struct lpfc_hba *);
  82 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  83 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  84 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
  85 static void lpfc_init_sgl_list(struct lpfc_hba *);
  86 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  87 static void lpfc_free_active_sgl(struct lpfc_hba *);
  88 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  89 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  90 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  91 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  92 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  93 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  94 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  95 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  96
  97 static struct scsi_transport_template *lpfc_transport_template = NULL;
  98 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  99 static DEFINE_IDR(lpfc_hba_index);
 100 #define LPFC_NVMET_BUF_POST 254
 101
 102 /**
 103  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 104  * @phba: pointer to lpfc hba data structure.
 105  *
 106  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 107  * mailbox command. It retrieves the revision information from the HBA and
 108  * collects the Vital Product Data (VPD) about the HBA for preparing the
 109  * configuration of the HBA.
 110  *
 111  * Return codes:
 112  *   0 - success.
 113  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 114  *   Any other value - indicates an error.
 115  **/
 116 int
 117 lpfc_config_port_prep(struct lpfc_hba *phba)
 118 {
 119         lpfc_vpd_t *vp = &phba->vpd;
 120         int i = 0, rc;
 121         LPFC_MBOXQ_t *pmb;
 122         MAILBOX_t *mb;
 123         char *lpfc_vpd_data = NULL;
 124         uint16_t offset = 0;
 125         static char licensed[56] =
 126                     "key unlock for use with gnu public licensed code only\0";
 127         static int init_key = 1;
 128
 129         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 130         if (!pmb) {
 131                 phba->link_state = LPFC_HBA_ERROR;
 132                 return -ENOMEM;
 133         }
 134
 135         mb = &pmb->u.mb;
 136         phba->link_state = LPFC_INIT_MBX_CMDS;
 137
 138         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 139                 if (init_key) {
 140                         uint32_t *ptext = (uint32_t *) licensed;
 141
 142                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 143                                 *ptext = cpu_to_be32(*ptext);
 144                         init_key = 0;
 145                 }
 146
 147                 lpfc_read_nv(phba, pmb);
 148                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 149                         sizeof (mb->un.varRDnvp.rsvd3));
 150                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 151                          sizeof (licensed));
 152
 153                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 154
 155                 if (rc != MBX_SUCCESS) {
 156                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 157                                         "0324 Config Port initialization "
 158                                         "error, mbxCmd x%x READ_NVPARM, "
 159                                         "mbxStatus x%x\n",
 160                                         mb->mbxCommand, mb->mbxStatus);
 161                         mempool_free(pmb, phba->mbox_mem_pool);
 162                         return -ERESTART;
 163                 }
 164                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 165                        sizeof(phba->wwnn));
 166                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 167                        sizeof(phba->wwpn));
 168         }
 169
 170         /*
 171          * Clear all option bits except LPFC_SLI3_BG_ENABLED,
 172          * which was already set in lpfc_get_cfgparam()
 173          */
 174         phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
 175
 176         /* Setup and issue mailbox READ REV command */
 177         lpfc_read_rev(phba, pmb);
 178         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 179         if (rc != MBX_SUCCESS) {
 180                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 181                                 "0439 Adapter failed to init, mbxCmd x%x "
 182                                 "READ_REV, mbxStatus x%x\n",
 183                                 mb->mbxCommand, mb->mbxStatus);
 184                 mempool_free( pmb, phba->mbox_mem_pool);
 185                 return -ERESTART;
 186         }
 187
 188
 189         /*
 190          * The value of rr must be 1 since the driver set the cv field to 1.
 191          * This setting requires the FW to set all revision fields.
 192          */
 193         if (mb->un.varRdRev.rr == 0) {
 194                 vp->rev.rBit = 0;
 195                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 196                                 "0440 Adapter failed to init, READ_REV has "
 197                                 "missing revision information.\n");
 198                 mempool_free(pmb, phba->mbox_mem_pool);
 199                 return -ERESTART;
 200         }
 201
 202         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 203                 mempool_free(pmb, phba->mbox_mem_pool);
 204                 return -EINVAL;
 205         }
 206
 207         /* Save information as VPD data */
 208         vp->rev.rBit = 1;
 209         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 210         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 211         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 212         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 213         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 214         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 215         vp->rev.smRev = mb->un.varRdRev.smRev;
 216         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 217         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 218         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 219         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 220         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 221         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 222         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 223         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 224
 225         /* If the sli feature level is less then 9, we must
 226          * tear down all RPIs and VPIs on link down if NPIV
 227          * is enabled.
 228          */
 229         if (vp->rev.feaLevelHigh < 9)
 230                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 231
 232         if (lpfc_is_LC_HBA(phba->pcidev->device))
 233                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 234                                                 sizeof (phba->RandomData));
 235
 236         /* Get adapter VPD information */
 237         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 238         if (!lpfc_vpd_data)
 239                 goto out_free_mbox;
 240         do {
 241                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 242                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 243
 244                 if (rc != MBX_SUCCESS) {
 245                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 246                                         "0441 VPD not present on adapter, "
 247                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 248                                         mb->mbxCommand, mb->mbxStatus);
 249                         mb->un.varDmp.word_cnt = 0;
 250                 }
 251                 /* dump mem may return a zero when finished or we got a
 252                  * mailbox error, either way we are done.
 253                  */
 254                 if (mb->un.varDmp.word_cnt == 0)
 255                         break;
 256                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 257                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 258                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 259                                       lpfc_vpd_data + offset,
 260                                       mb->un.varDmp.word_cnt);
 261                 offset += mb->un.varDmp.word_cnt;
 262         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 263         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 264
 265         kfree(lpfc_vpd_data);
 266 out_free_mbox:
 267         mempool_free(pmb, phba->mbox_mem_pool);
 268         return 0;
 269 }
 270
 271 /**
 272  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 273  * @phba: pointer to lpfc hba data structure.
 274  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 275  *
 276  * This is the completion handler for driver's configuring asynchronous event
 277  * mailbox command to the device. If the mailbox command returns successfully,
 278  * it will set internal async event support flag to 1; otherwise, it will
 279  * set internal async event support flag to 0.
 280  **/
 281 static void
 282 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 283 {
 284         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 285                 phba->temp_sensor_support = 1;
 286         else
 287                 phba->temp_sensor_support = 0;
 288         mempool_free(pmboxq, phba->mbox_mem_pool);
 289         return;
 290 }
 291
 292 /**
 293  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 294  * @phba: pointer to lpfc hba data structure.
 295  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 296  *
 297  * This is the completion handler for dump mailbox command for getting
 298  * wake up parameters. When this command complete, the response contain
 299  * Option rom version of the HBA. This function translate the version number
 300  * into a human readable string and store it in OptionROMVersion.
 301  **/
 302 static void
 303 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 304 {
 305         struct prog_id *prg;
 306         uint32_t prog_id_word;
 307         char dist = ' ';
 308         /* character array used for decoding dist type. */
 309         char dist_char[] = "nabx";
 310
 311         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 312                 mempool_free(pmboxq, phba->mbox_mem_pool);
 313                 return;
 314         }
 315
 316         prg = (struct prog_id *) &prog_id_word;
 317
 318         /* word 7 contain option rom version */
 319         prog_id_word = pmboxq->u.mb.un.varWords[7];
 320
 321         /* Decode the Option rom version word to a readable string */
 322         if (prg->dist < 4)
 323                 dist = dist_char[prg->dist];
 324
 325         if ((prg->dist == 3) && (prg->num == 0))
 326                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 327                         prg->ver, prg->rev, prg->lev);
 328         else
 329                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 330                         prg->ver, prg->rev, prg->lev,
 331                         dist, prg->num);
 332         mempool_free(pmboxq, phba->mbox_mem_pool);
 333         return;
 334 }
 335
 336 /**
 337  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 338  *      cfg_soft_wwnn, cfg_soft_wwpn
 339  * @vport: pointer to lpfc vport data structure.
 340  *
 341  *
 342  * Return codes
 343  *   None.
 344  **/
 345 void
 346 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 347 {
 348         uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
 349         u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
 350
 351         /* If the soft name exists then update it using the service params */
 352         if (vport->phba->cfg_soft_wwnn)
 353                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 354                            vport->fc_sparam.nodeName.u.wwn);
 355         if (vport->phba->cfg_soft_wwpn)
 356                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 357                            vport->fc_sparam.portName.u.wwn);
 358
 359         /*
 360          * If the name is empty or there exists a soft name
 361          * then copy the service params name, otherwise use the fc name
 362          */
 363         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 364                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 365                         sizeof(struct lpfc_name));
 366         else
 367                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 368                         sizeof(struct lpfc_name));
 369
 370         /*
 371          * If the port name has changed, then set the Param changes flag
 372          * to unreg the login
 373          */
 374         if (vport->fc_portname.u.wwn[0] != 0 &&
 375                 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
 376                         sizeof(struct lpfc_name)))
 377                 vport->vport_flag |= FAWWPN_PARAM_CHG;
 378
 379         if (vport->fc_portname.u.wwn[0] == 0 ||
 380             vport->phba->cfg_soft_wwpn ||
 381             (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
 382             vport->vport_flag & FAWWPN_SET) {
 383                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 384                         sizeof(struct lpfc_name));
 385                 vport->vport_flag &= ~FAWWPN_SET;
 386                 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
 387                         vport->vport_flag |= FAWWPN_SET;
 388         }
 389         else
 390                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 391                         sizeof(struct lpfc_name));
 392 }
 393
 394 /**
 395  * lpfc_config_port_post - Perform lpfc initialization after config port
 396  * @phba: pointer to lpfc hba data structure.
 397  *
 398  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 399  * command call. It performs all internal resource and state setups on the
 400  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 401  * ELS ring timers, etc.
 402  *
 403  * Return codes
 404  *   0 - success.
 405  *   Any other value - error.
 406  **/
 407 int
 408 lpfc_config_port_post(struct lpfc_hba *phba)
 409 {
 410         struct lpfc_vport *vport = phba->pport;
 411         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 412         LPFC_MBOXQ_t *pmb;
 413         MAILBOX_t *mb;
 414         struct lpfc_dmabuf *mp;
 415         struct lpfc_sli *psli = &phba->sli;
 416         uint32_t status, timeout;
 417         int i, j;
 418         int rc;
 419
 420         spin_lock_irq(&phba->hbalock);
 421         /*
 422          * If the Config port completed correctly the HBA is not
 423          * over heated any more.
 424          */
 425         if (phba->over_temp_state == HBA_OVER_TEMP)
 426                 phba->over_temp_state = HBA_NORMAL_TEMP;
 427         spin_unlock_irq(&phba->hbalock);
 428
 429         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 430         if (!pmb) {
 431                 phba->link_state = LPFC_HBA_ERROR;
 432                 return -ENOMEM;
 433         }
 434         mb = &pmb->u.mb;
 435
 436         /* Get login parameters for NID.  */
 437         rc = lpfc_read_sparam(phba, pmb, 0);
 438         if (rc) {
 439                 mempool_free(pmb, phba->mbox_mem_pool);
 440                 return -ENOMEM;
 441         }
 442
 443         pmb->vport = vport;
 444         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 445                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 446                                 "0448 Adapter failed init, mbxCmd x%x "
 447                                 "READ_SPARM mbxStatus x%x\n",
 448                                 mb->mbxCommand, mb->mbxStatus);
 449                 phba->link_state = LPFC_HBA_ERROR;
 450                 mp = (struct lpfc_dmabuf *) pmb->context1;
 451                 mempool_free(pmb, phba->mbox_mem_pool);
 452                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 453                 kfree(mp);
 454                 return -EIO;
 455         }
 456
 457         mp = (struct lpfc_dmabuf *) pmb->context1;
 458
 459         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 460         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 461         kfree(mp);
 462         pmb->context1 = NULL;
 463         lpfc_update_vport_wwn(vport);
 464
 465         /* Update the fc_host data structures with new wwn. */
 466         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 467         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 468         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 469
 470         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 471         /* This should be consolidated into parse_vpd ? - mr */
 472         if (phba->SerialNumber[0] == 0) {
 473                 uint8_t *outptr;
 474
 475                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 476                 for (i = 0; i < 12; i++) {
 477                         status = *outptr++;
 478                         j = ((status & 0xf0) >> 4);
 479                         if (j <= 9)
 480                                 phba->SerialNumber[i] =
 481                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 482                         else
 483                                 phba->SerialNumber[i] =
 484                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 485                         i++;
 486                         j = (status & 0xf);
 487                         if (j <= 9)
 488                                 phba->SerialNumber[i] =
 489                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 490                         else
 491                                 phba->SerialNumber[i] =
 492                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 493                 }
 494         }
 495
 496         lpfc_read_config(phba, pmb);
 497         pmb->vport = vport;
 498         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 499                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 500                                 "0453 Adapter failed to init, mbxCmd x%x "
 501                                 "READ_CONFIG, mbxStatus x%x\n",
 502                                 mb->mbxCommand, mb->mbxStatus);
 503                 phba->link_state = LPFC_HBA_ERROR;
 504                 mempool_free( pmb, phba->mbox_mem_pool);
 505                 return -EIO;
 506         }
 507
 508         /* Check if the port is disabled */
 509         lpfc_sli_read_link_ste(phba);
 510
 511         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 512         i = (mb->un.varRdConfig.max_xri + 1);
 513         if (phba->cfg_hba_queue_depth > i) {
 514                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 515                                 "3359 HBA queue depth changed from %d to %d\n",
 516                                 phba->cfg_hba_queue_depth, i);
 517                 phba->cfg_hba_queue_depth = i;
 518         }
 519
 520         /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
 521         i = (mb->un.varRdConfig.max_xri >> 3);
 522         if (phba->pport->cfg_lun_queue_depth > i) {
 523                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 524                                 "3360 LUN queue depth changed from %d to %d\n",
 525                                 phba->pport->cfg_lun_queue_depth, i);
 526                 phba->pport->cfg_lun_queue_depth = i;
 527         }
 528
 529         phba->lmt = mb->un.varRdConfig.lmt;
 530
 531         /* Get the default values for Model Name and Description */
 532         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 533
 534         phba->link_state = LPFC_LINK_DOWN;
 535
 536         /* Only process IOCBs on ELS ring till hba_state is READY */
 537         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 538                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 539         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 540                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 541
 542         /* Post receive buffers for desired rings */
 543         if (phba->sli_rev != 3)
 544                 lpfc_post_rcv_buf(phba);
 545
 546         /*
 547          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 548          */
 549         if (phba->intr_type == MSIX) {
 550                 rc = lpfc_config_msi(phba, pmb);
 551                 if (rc) {
 552                         mempool_free(pmb, phba->mbox_mem_pool);
 553                         return -EIO;
 554                 }
 555                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 556                 if (rc != MBX_SUCCESS) {
 557                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 558                                         "0352 Config MSI mailbox command "
 559                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 560                                         pmb->u.mb.mbxCommand,
 561                                         pmb->u.mb.mbxStatus);
 562                         mempool_free(pmb, phba->mbox_mem_pool);
 563                         return -EIO;
 564                 }
 565         }
 566
 567         spin_lock_irq(&phba->hbalock);
 568         /* Initialize ERATT handling flag */
 569         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 570
 571         /* Enable appropriate host interrupts */
 572         if (lpfc_readl(phba->HCregaddr, &status)) {
 573                 spin_unlock_irq(&phba->hbalock);
 574                 return -EIO;
 575         }
 576         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 577         if (psli->num_rings > 0)
 578                 status |= HC_R0INT_ENA;
 579         if (psli->num_rings > 1)
 580                 status |= HC_R1INT_ENA;
 581         if (psli->num_rings > 2)
 582                 status |= HC_R2INT_ENA;
 583         if (psli->num_rings > 3)
 584                 status |= HC_R3INT_ENA;
 585
 586         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 587             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 588                 status &= ~(HC_R0INT_ENA);
 589
 590         writel(status, phba->HCregaddr);
 591         readl(phba->HCregaddr); /* flush */
 592         spin_unlock_irq(&phba->hbalock);
 593
 594         /* Set up ring-0 (ELS) timer */
 595         timeout = phba->fc_ratov * 2;
 596         mod_timer(&vport->els_tmofunc,
 597                   jiffies + msecs_to_jiffies(1000 * timeout));
 598         /* Set up heart beat (HB) timer */
 599         mod_timer(&phba->hb_tmofunc,
 600                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 601         phba->hb_outstanding = 0;
 602         phba->last_completion_time = jiffies;
 603         /* Set up error attention (ERATT) polling timer */
 604         mod_timer(&phba->eratt_poll,
 605                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 606
 607         if (phba->hba_flag & LINK_DISABLED) {
 608                 lpfc_printf_log(phba,
 609                         KERN_ERR, LOG_INIT,
 610                         "2598 Adapter Link is disabled.\n");
 611                 lpfc_down_link(phba, pmb);
 612                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 613                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 614                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 615                         lpfc_printf_log(phba,
 616                         KERN_ERR, LOG_INIT,
 617                         "2599 Adapter failed to issue DOWN_LINK"
 618                         " mbox command rc 0x%x\n", rc);
 619
 620                         mempool_free(pmb, phba->mbox_mem_pool);
 621                         return -EIO;
 622                 }
 623         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 624                 mempool_free(pmb, phba->mbox_mem_pool);
 625                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 626                 if (rc)
 627                         return rc;
 628         }
 629         /* MBOX buffer will be freed in mbox compl */
 630         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 631         if (!pmb) {
 632                 phba->link_state = LPFC_HBA_ERROR;
 633                 return -ENOMEM;
 634         }
 635
 636         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 637         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 638         pmb->vport = phba->pport;
 639         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 640
 641         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 642                 lpfc_printf_log(phba,
 643                                 KERN_ERR,
 644                                 LOG_INIT,
 645                                 "0456 Adapter failed to issue "
 646                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 647                                 rc);
 648                 mempool_free(pmb, phba->mbox_mem_pool);
 649         }
 650
 651         /* Get Option rom version */
 652         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 653         if (!pmb) {
 654                 phba->link_state = LPFC_HBA_ERROR;
 655                 return -ENOMEM;
 656         }
 657
 658         lpfc_dump_wakeup_param(phba, pmb);
 659         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 660         pmb->vport = phba->pport;
 661         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 662
 663         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 664                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 665                                 "to get Option ROM version status x%x\n", rc);
 666                 mempool_free(pmb, phba->mbox_mem_pool);
 667         }
 668
 669         return 0;
 670 }
 671
 672 /**
 673  * lpfc_hba_init_link - Initialize the FC link
 674  * @phba: pointer to lpfc hba data structure.
 675  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 676  *
 677  * This routine will issue the INIT_LINK mailbox command call.
 678  * It is available to other drivers through the lpfc_hba data
 679  * structure for use as a delayed link up mechanism with the
 680  * module parameter lpfc_suppress_link_up.
 681  *
 682  * Return code
 683  *              0 - success
 684  *              Any other value - error
 685  **/
 686 static int
 687 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 688 {
 689         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 690 }
 691
 692 /**
 693  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 694  * @phba: pointer to lpfc hba data structure.
 695  * @fc_topology: desired fc topology.
 696  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 697  *
 698  * This routine will issue the INIT_LINK mailbox command call.
 699  * It is available to other drivers through the lpfc_hba data
 700  * structure for use as a delayed link up mechanism with the
 701  * module parameter lpfc_suppress_link_up.
 702  *
 703  * Return code
 704  *              0 - success
 705  *              Any other value - error
 706  **/
 707 int
 708 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 709                                uint32_t flag)
 710 {
 711         struct lpfc_vport *vport = phba->pport;
 712         LPFC_MBOXQ_t *pmb;
 713         MAILBOX_t *mb;
 714         int rc;
 715
 716         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 717         if (!pmb) {
 718                 phba->link_state = LPFC_HBA_ERROR;
 719                 return -ENOMEM;
 720         }
 721         mb = &pmb->u.mb;
 722         pmb->vport = vport;
 723
 724         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 725             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 726              !(phba->lmt & LMT_1Gb)) ||
 727             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 728              !(phba->lmt & LMT_2Gb)) ||
 729             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 730              !(phba->lmt & LMT_4Gb)) ||
 731             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 732              !(phba->lmt & LMT_8Gb)) ||
 733             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 734              !(phba->lmt & LMT_10Gb)) ||
 735             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 736              !(phba->lmt & LMT_16Gb)) ||
 737             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 738              !(phba->lmt & LMT_32Gb)) ||
 739             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
 740              !(phba->lmt & LMT_64Gb))) {
 741                 /* Reset link speed to auto */
 742                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 743                         "1302 Invalid speed for this board:%d "
 744                         "Reset link speed to auto.\n",
 745                         phba->cfg_link_speed);
 746                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 747         }
 748         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 749         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 750         if (phba->sli_rev < LPFC_SLI_REV4)
 751                 lpfc_set_loopback_flag(phba);
 752         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 753         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 754                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 755                         "0498 Adapter failed to init, mbxCmd x%x "
 756                         "INIT_LINK, mbxStatus x%x\n",
 757                         mb->mbxCommand, mb->mbxStatus);
 758                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 759                         /* Clear all interrupt enable conditions */
 760                         writel(0, phba->HCregaddr);
 761                         readl(phba->HCregaddr); /* flush */
 762                         /* Clear all pending interrupts */
 763                         writel(0xffffffff, phba->HAregaddr);
 764                         readl(phba->HAregaddr); /* flush */
 765                 }
 766                 phba->link_state = LPFC_HBA_ERROR;
 767                 if (rc != MBX_BUSY || flag == MBX_POLL)
 768                         mempool_free(pmb, phba->mbox_mem_pool);
 769                 return -EIO;
 770         }
 771         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 772         if (flag == MBX_POLL)
 773                 mempool_free(pmb, phba->mbox_mem_pool);
 774
 775         return 0;
 776 }
 777
 778 /**
 779  * lpfc_hba_down_link - this routine downs the FC link
 780  * @phba: pointer to lpfc hba data structure.
 781  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 782  *
 783  * This routine will issue the DOWN_LINK mailbox command call.
 784  * It is available to other drivers through the lpfc_hba data
 785  * structure for use to stop the link.
 786  *
 787  * Return code
 788  *              0 - success
 789  *              Any other value - error
 790  **/
 791 static int
 792 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 793 {
 794         LPFC_MBOXQ_t *pmb;
 795         int rc;
 796
 797         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 798         if (!pmb) {
 799                 phba->link_state = LPFC_HBA_ERROR;
 800                 return -ENOMEM;
 801         }
 802
 803         lpfc_printf_log(phba,
 804                 KERN_ERR, LOG_INIT,
 805                 "0491 Adapter Link is disabled.\n");
 806         lpfc_down_link(phba, pmb);
 807         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 808         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 809         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 810                 lpfc_printf_log(phba,
 811                 KERN_ERR, LOG_INIT,
 812                 "2522 Adapter failed to issue DOWN_LINK"
 813                 " mbox command rc 0x%x\n", rc);
 814
 815                 mempool_free(pmb, phba->mbox_mem_pool);
 816                 return -EIO;
 817         }
 818         if (flag == MBX_POLL)
 819                 mempool_free(pmb, phba->mbox_mem_pool);
 820
 821         return 0;
 822 }
 823
 824 /**
 825  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 826  * @phba: pointer to lpfc HBA data structure.
 827  *
 828  * This routine will do LPFC uninitialization before the HBA is reset when
 829  * bringing down the SLI Layer.
 830  *
 831  * Return codes
 832  *   0 - success.
 833  *   Any other value - error.
 834  **/
 835 int
 836 lpfc_hba_down_prep(struct lpfc_hba *phba)
 837 {
 838         struct lpfc_vport **vports;
 839         int i;
 840
 841         if (phba->sli_rev <= LPFC_SLI_REV3) {
 842                 /* Disable interrupts */
 843                 writel(0, phba->HCregaddr);
 844                 readl(phba->HCregaddr); /* flush */
 845         }
 846
 847         if (phba->pport->load_flag & FC_UNLOADING)
 848                 lpfc_cleanup_discovery_resources(phba->pport);
 849         else {
 850                 vports = lpfc_create_vport_work_array(phba);
 851                 if (vports != NULL)
 852                         for (i = 0; i <= phba->max_vports &&
 853                                 vports[i] != NULL; i++)
 854                                 lpfc_cleanup_discovery_resources(vports[i]);
 855                 lpfc_destroy_vport_work_array(phba, vports);
 856         }
 857         return 0;
 858 }
 859
 860 /**
 861  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 862  * rspiocb which got deferred
 863  *
 864  * @phba: pointer to lpfc HBA data structure.
 865  *
 866  * This routine will cleanup completed slow path events after HBA is reset
 867  * when bringing down the SLI Layer.
 868  *
 869  *
 870  * Return codes
 871  *   void.
 872  **/
 873 static void
 874 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 875 {
 876         struct lpfc_iocbq *rspiocbq;
 877         struct hbq_dmabuf *dmabuf;
 878         struct lpfc_cq_event *cq_event;
 879
 880         spin_lock_irq(&phba->hbalock);
 881         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 882         spin_unlock_irq(&phba->hbalock);
 883
 884         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 885                 /* Get the response iocb from the head of work queue */
 886                 spin_lock_irq(&phba->hbalock);
 887                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 888                                  cq_event, struct lpfc_cq_event, list);
 889                 spin_unlock_irq(&phba->hbalock);
 890
 891                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 892                 case CQE_CODE_COMPL_WQE:
 893                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 894                                                  cq_event);
 895                         lpfc_sli_release_iocbq(phba, rspiocbq);
 896                         break;
 897                 case CQE_CODE_RECEIVE:
 898                 case CQE_CODE_RECEIVE_V1:
 899                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 900                                               cq_event);
 901                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 902                 }
 903         }
 904 }
 905
 906 /**
 907  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 908  * @phba: pointer to lpfc HBA data structure.
 909  *
 910  * This routine will cleanup posted ELS buffers after the HBA is reset
 911  * when bringing down the SLI Layer.
 912  *
 913  *
 914  * Return codes
 915  *   void.
 916  **/
 917 static void
 918 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 919 {
 920         struct lpfc_sli *psli = &phba->sli;
 921         struct lpfc_sli_ring *pring;
 922         struct lpfc_dmabuf *mp, *next_mp;
 923         LIST_HEAD(buflist);
 924         int count;
 925
 926         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 927                 lpfc_sli_hbqbuf_free_all(phba);
 928         else {
 929                 /* Cleanup preposted buffers on the ELS ring */
 930                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 931                 spin_lock_irq(&phba->hbalock);
 932                 list_splice_init(&pring->postbufq, &buflist);
 933                 spin_unlock_irq(&phba->hbalock);
 934
 935                 count = 0;
 936                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 937                         list_del(&mp->list);
 938                         count++;
 939                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 940                         kfree(mp);
 941                 }
 942
 943                 spin_lock_irq(&phba->hbalock);
 944                 pring->postbufq_cnt -= count;
 945                 spin_unlock_irq(&phba->hbalock);
 946         }
 947 }
 948
 949 /**
 950  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 951  * @phba: pointer to lpfc HBA data structure.
 952  *
 953  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 954  * down the SLI Layer.
 955  *
 956  * Return codes
 957  *   void
 958  **/
 959 static void
 960 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 961 {
 962         struct lpfc_sli *psli = &phba->sli;
 963         struct lpfc_queue *qp = NULL;
 964         struct lpfc_sli_ring *pring;
 965         LIST_HEAD(completions);
 966         int i;
 967         struct lpfc_iocbq *piocb, *next_iocb;
 968
 969         if (phba->sli_rev != LPFC_SLI_REV4) {
 970                 for (i = 0; i < psli->num_rings; i++) {
 971                         pring = &psli->sli3_ring[i];
 972                         spin_lock_irq(&phba->hbalock);
 973                         /* At this point in time the HBA is either reset or DOA
 974                          * Nothing should be on txcmplq as it will
 975                          * NEVER complete.
 976                          */
 977                         list_splice_init(&pring->txcmplq, &completions);
 978                         pring->txcmplq_cnt = 0;
 979                         spin_unlock_irq(&phba->hbalock);
 980
 981                         lpfc_sli_abort_iocb_ring(phba, pring);
 982                 }
 983                 /* Cancel all the IOCBs from the completions list */
 984                 lpfc_sli_cancel_iocbs(phba, &completions,
 985                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 986                 return;
 987         }
 988         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
 989                 pring = qp->pring;
 990                 if (!pring)
 991                         continue;
 992                 spin_lock_irq(&pring->ring_lock);
 993                 list_for_each_entry_safe(piocb, next_iocb,
 994                                          &pring->txcmplq, list)
 995                         piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
 996                 list_splice_init(&pring->txcmplq, &completions);
 997                 pring->txcmplq_cnt = 0;
 998                 spin_unlock_irq(&pring->ring_lock);
 999                 lpfc_sli_abort_iocb_ring(phba, pring);
1000         }
1001         /* Cancel all the IOCBs from the completions list */
1002         lpfc_sli_cancel_iocbs(phba, &completions,
1003                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1004 }
1005
1006 /**
1007  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
1008         int i;
1009  * @phba: pointer to lpfc HBA data structure.
1010  *
1011  * This routine will do uninitialization after the HBA is reset when bring
1012  * down the SLI Layer.
1013  *
1014  * Return codes
1015  *   0 - success.
1016  *   Any other value - error.
1017  **/
1018 static int
1019 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1020 {
1021         lpfc_hba_free_post_buf(phba);
1022         lpfc_hba_clean_txcmplq(phba);
1023         return 0;
1024 }
1025
1026 /**
1027  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1028  * @phba: pointer to lpfc HBA data structure.
1029  *
1030  * This routine will do uninitialization after the HBA is reset when bring
1031  * down the SLI Layer.
1032  *
1033  * Return codes
1034  *   0 - success.
1035  *   Any other value - error.
1036  **/
1037 static int
1038 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1039 {
1040         struct lpfc_scsi_buf *psb, *psb_next;
1041         struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next;
1042         LIST_HEAD(aborts);
1043         LIST_HEAD(nvme_aborts);
1044         LIST_HEAD(nvmet_aborts);
1045         unsigned long iflag = 0;
1046         struct lpfc_sglq *sglq_entry = NULL;
1047         int cnt;
1048
1049
1050         lpfc_sli_hbqbuf_free_all(phba);
1051         lpfc_hba_clean_txcmplq(phba);
1052
1053         /* At this point in time the HBA is either reset or DOA. Either
1054          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1055          * on the lpfc_els_sgl_list so that it can either be freed if the
1056          * driver is unloading or reposted if the driver is restarting
1057          * the port.
1058          */
1059         spin_lock_irq(&phba->hbalock);  /* required for lpfc_els_sgl_list and */
1060                                         /* scsl_buf_list */
1061         /* sgl_list_lock required because worker thread uses this
1062          * list.
1063          */
1064         spin_lock(&phba->sli4_hba.sgl_list_lock);
1065         list_for_each_entry(sglq_entry,
1066                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1067                 sglq_entry->state = SGL_FREED;
1068
1069         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1070                         &phba->sli4_hba.lpfc_els_sgl_list);
1071
1072
1073         spin_unlock(&phba->sli4_hba.sgl_list_lock);
1074         /* abts_scsi_buf_list_lock required because worker thread uses this
1075          * list.
1076          */
1077         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
1078                 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1079                 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1080                                  &aborts);
1081                 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1082         }
1083
1084         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1085                 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock);
1086                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvme_buf_list,
1087                                  &nvme_aborts);
1088                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1089                                  &nvmet_aborts);
1090                 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock);
1091         }
1092
1093         spin_unlock_irq(&phba->hbalock);
1094
1095         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1096                 psb->pCmd = NULL;
1097                 psb->status = IOSTAT_SUCCESS;
1098         }
1099         spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1100         list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1101         spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1102
1103         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1104                 cnt = 0;
1105                 list_for_each_entry_safe(psb, psb_next, &nvme_aborts, list) {
1106                         psb->pCmd = NULL;
1107                         psb->status = IOSTAT_SUCCESS;
1108                         cnt++;
1109                 }
1110                 spin_lock_irqsave(&phba->nvme_buf_list_put_lock, iflag);
1111                 phba->put_nvme_bufs += cnt;
1112                 list_splice(&nvme_aborts, &phba->lpfc_nvme_buf_list_put);
1113                 spin_unlock_irqrestore(&phba->nvme_buf_list_put_lock, iflag);
1114
1115                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1116                         ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP);
1117                         lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1118                 }
1119         }
1120
1121         lpfc_sli4_free_sp_events(phba);
1122         return 0;
1123 }
1124
1125 /**
1126  * lpfc_hba_down_post - Wrapper func for hba down post routine
1127  * @phba: pointer to lpfc HBA data structure.
1128  *
1129  * This routine wraps the actual SLI3 or SLI4 routine for performing
1130  * uninitialization after the HBA is reset when bring down the SLI Layer.
1131  *
1132  * Return codes
1133  *   0 - success.
1134  *   Any other value - error.
1135  **/
1136 int
1137 lpfc_hba_down_post(struct lpfc_hba *phba)
1138 {
1139         return (*phba->lpfc_hba_down_post)(phba);
1140 }
1141
1142 /**
1143  * lpfc_hb_timeout - The HBA-timer timeout handler
1144  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1145  *
1146  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1147  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1148  * work-port-events bitmap and the worker thread is notified. This timeout
1149  * event will be used by the worker thread to invoke the actual timeout
1150  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1151  * be performed in the timeout handler and the HBA timeout event bit shall
1152  * be cleared by the worker thread after it has taken the event bitmap out.
1153  **/
1154 static void
1155 lpfc_hb_timeout(struct timer_list *t)
1156 {
1157         struct lpfc_hba *phba;
1158         uint32_t tmo_posted;
1159         unsigned long iflag;
1160
1161         phba = from_timer(phba, t, hb_tmofunc);
1162
1163         /* Check for heart beat timeout conditions */
1164         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1165         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1166         if (!tmo_posted)
1167                 phba->pport->work_port_events |= WORKER_HB_TMO;
1168         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1169
1170         /* Tell the worker thread there is work to do */
1171         if (!tmo_posted)
1172                 lpfc_worker_wake_up(phba);
1173         return;
1174 }
1175
1176 /**
1177  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1178  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1179  *
1180  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1181  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1182  * work-port-events bitmap and the worker thread is notified. This timeout
1183  * event will be used by the worker thread to invoke the actual timeout
1184  * handler routine, lpfc_rrq_handler. Any periodical operations will
1185  * be performed in the timeout handler and the RRQ timeout event bit shall
1186  * be cleared by the worker thread after it has taken the event bitmap out.
1187  **/
1188 static void
1189 lpfc_rrq_timeout(struct timer_list *t)
1190 {
1191         struct lpfc_hba *phba;
1192         unsigned long iflag;
1193
1194         phba = from_timer(phba, t, rrq_tmr);
1195         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1196         if (!(phba->pport->load_flag & FC_UNLOADING))
1197                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1198         else
1199                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1200         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1201
1202         if (!(phba->pport->load_flag & FC_UNLOADING))
1203                 lpfc_worker_wake_up(phba);
1204 }
1205
1206 /**
1207  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1208  * @phba: pointer to lpfc hba data structure.
1209  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1210  *
1211  * This is the callback function to the lpfc heart-beat mailbox command.
1212  * If configured, the lpfc driver issues the heart-beat mailbox command to
1213  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1214  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1215  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1216  * heart-beat outstanding state. Once the mailbox command comes back and
1217  * no error conditions detected, the heart-beat mailbox command timer is
1218  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1219  * state is cleared for the next heart-beat. If the timer expired with the
1220  * heart-beat outstanding state set, the driver will put the HBA offline.
1221  **/
1222 static void
1223 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1224 {
1225         unsigned long drvr_flag;
1226
1227         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1228         phba->hb_outstanding = 0;
1229         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1230
1231         /* Check and reset heart-beat timer is necessary */
1232         mempool_free(pmboxq, phba->mbox_mem_pool);
1233         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1234                 !(phba->link_state == LPFC_HBA_ERROR) &&
1235                 !(phba->pport->load_flag & FC_UNLOADING))
1236                 mod_timer(&phba->hb_tmofunc,
1237                           jiffies +
1238                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1239         return;
1240 }
1241
1242 /**
1243  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1244  * @phba: pointer to lpfc hba data structure.
1245  *
1246  * This is the actual HBA-timer timeout handler to be invoked by the worker
1247  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1248  * handler performs any periodic operations needed for the device. If such
1249  * periodic event has already been attended to either in the interrupt handler
1250  * or by processing slow-ring or fast-ring events within the HBA-timer
1251  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1252  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1253  * is configured and there is no heart-beat mailbox command outstanding, a
1254  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1255  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1256  * to offline.
1257  **/
1258 void
1259 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1260 {
1261         struct lpfc_vport **vports;
1262         LPFC_MBOXQ_t *pmboxq;
1263         struct lpfc_dmabuf *buf_ptr;
1264         int retval, i;
1265         struct lpfc_sli *psli = &phba->sli;
1266         LIST_HEAD(completions);
1267         struct lpfc_queue *qp;
1268         unsigned long time_elapsed;
1269         uint32_t tick_cqe, max_cqe, val;
1270         uint64_t tot, data1, data2, data3;
1271         struct lpfc_nvmet_tgtport *tgtp;
1272         struct lpfc_register reg_data;
1273         struct nvme_fc_local_port *localport;
1274         struct lpfc_nvme_lport *lport;
1275         struct lpfc_nvme_ctrl_stat *cstat;
1276         void __iomem *eqdreg = phba->sli4_hba.u.if_type2.EQDregaddr;
1277
1278         vports = lpfc_create_vport_work_array(phba);
1279         if (vports != NULL)
1280                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1281                         lpfc_rcv_seq_check_edtov(vports[i]);
1282                         lpfc_fdmi_num_disc_check(vports[i]);
1283                 }
1284         lpfc_destroy_vport_work_array(phba, vports);
1285
1286         if ((phba->link_state == LPFC_HBA_ERROR) ||
1287                 (phba->pport->load_flag & FC_UNLOADING) ||
1288                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1289                 return;
1290
1291         if (phba->cfg_auto_imax) {
1292                 if (!phba->last_eqdelay_time) {
1293                         phba->last_eqdelay_time = jiffies;
1294                         goto skip_eqdelay;
1295                 }
1296                 time_elapsed = jiffies - phba->last_eqdelay_time;
1297                 phba->last_eqdelay_time = jiffies;
1298
1299                 tot = 0xffff;
1300                 /* Check outstanding IO count */
1301                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1302                         if (phba->nvmet_support) {
1303                                 tgtp = phba->targetport->private;
1304                                 /* Calculate outstanding IOs */
1305                                 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop);
1306                                 tot += atomic_read(&tgtp->xmt_fcp_release);
1307                                 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot;
1308                         } else {
1309                                 localport = phba->pport->localport;
1310                                 if (!localport || !localport->private)
1311                                         goto skip_eqdelay;
1312                                 lport = (struct lpfc_nvme_lport *)
1313                                         localport->private;
1314                                 tot = 0;
1315                                 for (i = 0;
1316                                         i < phba->cfg_nvme_io_channel; i++) {
1317                                         cstat = &lport->cstat[i];
1318                                         data1 = atomic_read(
1319                                                 &cstat->fc4NvmeInputRequests);
1320                                         data2 = atomic_read(
1321                                                 &cstat->fc4NvmeOutputRequests);
1322                                         data3 = atomic_read(
1323                                                 &cstat->fc4NvmeControlRequests);
1324                                         tot += (data1 + data2 + data3);
1325                                         tot -= atomic_read(
1326                                                 &cstat->fc4NvmeIoCmpls);
1327                                 }
1328                         }
1329                 }
1330
1331                 /* Interrupts per sec per EQ */
1332                 val = phba->cfg_fcp_imax / phba->io_channel_irqs;
1333                 tick_cqe = val / CONFIG_HZ; /* Per tick per EQ */
1334
1335                 /* Assume 1 CQE/ISR, calc max CQEs allowed for time duration */
1336                 max_cqe = time_elapsed * tick_cqe;
1337
1338                 for (i = 0; i < phba->io_channel_irqs; i++) {
1339                         /* Fast-path EQ */
1340                         qp = phba->sli4_hba.hba_eq[i];
1341                         if (!qp)
1342                                 continue;
1343
1344                         /* Use no EQ delay if we don't have many outstanding
1345                          * IOs, or if we are only processing 1 CQE/ISR or less.
1346                          * Otherwise, assume we can process up to lpfc_fcp_imax
1347                          * interrupts per HBA.
1348                          */
1349                         if (tot < LPFC_NODELAY_MAX_IO ||
1350                             qp->EQ_cqe_cnt <= max_cqe)
1351                                 val = 0;
1352                         else
1353                                 val = phba->cfg_fcp_imax;
1354
1355                         if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) {
1356                                 /* Use EQ Delay Register method */
1357
1358                                 /* Convert for EQ Delay register */
1359                                 if (val) {
1360                                         /* First, interrupts per sec per EQ */
1361                                         val = phba->cfg_fcp_imax /
1362                                                 phba->io_channel_irqs;
1363
1364                                         /* us delay between each interrupt */
1365                                         val = LPFC_SEC_TO_USEC / val;
1366                                 }
1367                                 if (val != qp->q_mode) {
1368                                         reg_data.word0 = 0;
1369                                         bf_set(lpfc_sliport_eqdelay_id,
1370                                                &reg_data, qp->queue_id);
1371                                         bf_set(lpfc_sliport_eqdelay_delay,
1372                                                &reg_data, val);
1373                                         writel(reg_data.word0, eqdreg);
1374                                 }
1375                         } else {
1376                                 /* Use mbox command method */
1377                                 if (val != qp->q_mode)
1378                                         lpfc_modify_hba_eq_delay(phba, i,
1379                                                                  1, val);
1380                         }
1381
1382                         /*
1383                          * val is cfg_fcp_imax or 0 for mbox delay or us delay
1384                          * between interrupts for EQDR.
1385                          */
1386                         qp->q_mode = val;
1387                         qp->EQ_cqe_cnt = 0;
1388                 }
1389         }
1390
1391 skip_eqdelay:
1392         spin_lock_irq(&phba->pport->work_port_lock);
1393
1394         if (time_after(phba->last_completion_time +
1395                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1396                         jiffies)) {
1397                 spin_unlock_irq(&phba->pport->work_port_lock);
1398                 if (!phba->hb_outstanding)
1399                         mod_timer(&phba->hb_tmofunc,
1400                                 jiffies +
1401                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1402                 else
1403                         mod_timer(&phba->hb_tmofunc,
1404                                 jiffies +
1405                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1406                 return;
1407         }
1408         spin_unlock_irq(&phba->pport->work_port_lock);
1409
1410         if (phba->elsbuf_cnt &&
1411                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1412                 spin_lock_irq(&phba->hbalock);
1413                 list_splice_init(&phba->elsbuf, &completions);
1414                 phba->elsbuf_cnt = 0;
1415                 phba->elsbuf_prev_cnt = 0;
1416                 spin_unlock_irq(&phba->hbalock);
1417
1418                 while (!list_empty(&completions)) {
1419                         list_remove_head(&completions, buf_ptr,
1420                                 struct lpfc_dmabuf, list);
1421                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1422                         kfree(buf_ptr);
1423                 }
1424         }
1425         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1426
1427         /* If there is no heart beat outstanding, issue a heartbeat command */
1428         if (phba->cfg_enable_hba_heartbeat) {
1429                 if (!phba->hb_outstanding) {
1430                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1431                                 (list_empty(&psli->mboxq))) {
1432                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1433                                                         GFP_KERNEL);
1434                                 if (!pmboxq) {
1435                                         mod_timer(&phba->hb_tmofunc,
1436                                                  jiffies +
1437                                                  msecs_to_jiffies(1000 *
1438                                                  LPFC_HB_MBOX_INTERVAL));
1439                                         return;
1440                                 }
1441
1442                                 lpfc_heart_beat(phba, pmboxq);
1443                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1444                                 pmboxq->vport = phba->pport;
1445                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1446                                                 MBX_NOWAIT);
1447
1448                                 if (retval != MBX_BUSY &&
1449                                         retval != MBX_SUCCESS) {
1450                                         mempool_free(pmboxq,
1451                                                         phba->mbox_mem_pool);
1452                                         mod_timer(&phba->hb_tmofunc,
1453                                                 jiffies +
1454                                                 msecs_to_jiffies(1000 *
1455                                                 LPFC_HB_MBOX_INTERVAL));
1456                                         return;
1457                                 }
1458                                 phba->skipped_hb = 0;
1459                                 phba->hb_outstanding = 1;
1460                         } else if (time_before_eq(phba->last_completion_time,
1461                                         phba->skipped_hb)) {
1462                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1463                                         "2857 Last completion time not "
1464                                         " updated in %d ms\n",
1465                                         jiffies_to_msecs(jiffies
1466                                                  - phba->last_completion_time));
1467                         } else
1468                                 phba->skipped_hb = jiffies;
1469
1470                         mod_timer(&phba->hb_tmofunc,
1471                                  jiffies +
1472                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1473                         return;
1474                 } else {
1475                         /*
1476                         * If heart beat timeout called with hb_outstanding set
1477                         * we need to give the hb mailbox cmd a chance to
1478                         * complete or TMO.
1479                         */
1480                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1481                                         "0459 Adapter heartbeat still out"
1482                                         "standing:last compl time was %d ms.\n",
1483                                         jiffies_to_msecs(jiffies
1484                                                  - phba->last_completion_time));
1485                         mod_timer(&phba->hb_tmofunc,
1486                                 jiffies +
1487                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1488                 }
1489         } else {
1490                         mod_timer(&phba->hb_tmofunc,
1491                                 jiffies +
1492                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1493         }
1494 }
1495
1496 /**
1497  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1498  * @phba: pointer to lpfc hba data structure.
1499  *
1500  * This routine is called to bring the HBA offline when HBA hardware error
1501  * other than Port Error 6 has been detected.
1502  **/
1503 static void
1504 lpfc_offline_eratt(struct lpfc_hba *phba)
1505 {
1506         struct lpfc_sli   *psli = &phba->sli;
1507
1508         spin_lock_irq(&phba->hbalock);
1509         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1510         spin_unlock_irq(&phba->hbalock);
1511         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1512
1513         lpfc_offline(phba);
1514         lpfc_reset_barrier(phba);
1515         spin_lock_irq(&phba->hbalock);
1516         lpfc_sli_brdreset(phba);
1517         spin_unlock_irq(&phba->hbalock);
1518         lpfc_hba_down_post(phba);
1519         lpfc_sli_brdready(phba, HS_MBRDY);
1520         lpfc_unblock_mgmt_io(phba);
1521         phba->link_state = LPFC_HBA_ERROR;
1522         return;
1523 }
1524
1525 /**
1526  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1527  * @phba: pointer to lpfc hba data structure.
1528  *
1529  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1530  * other than Port Error 6 has been detected.
1531  **/
1532 void
1533 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1534 {
1535         spin_lock_irq(&phba->hbalock);
1536         phba->link_state = LPFC_HBA_ERROR;
1537         spin_unlock_irq(&phba->hbalock);
1538
1539         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1540         lpfc_offline(phba);
1541         lpfc_hba_down_post(phba);
1542         lpfc_unblock_mgmt_io(phba);
1543 }
1544
1545 /**
1546  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1547  * @phba: pointer to lpfc hba data structure.
1548  *
1549  * This routine is invoked to handle the deferred HBA hardware error
1550  * conditions. This type of error is indicated by HBA by setting ER1
1551  * and another ER bit in the host status register. The driver will
1552  * wait until the ER1 bit clears before handling the error condition.
1553  **/
1554 static void
1555 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1556 {
1557         uint32_t old_host_status = phba->work_hs;
1558         struct lpfc_sli *psli = &phba->sli;
1559
1560         /* If the pci channel is offline, ignore possible errors,
1561          * since we cannot communicate with the pci card anyway.
1562          */
1563         if (pci_channel_offline(phba->pcidev)) {
1564                 spin_lock_irq(&phba->hbalock);
1565                 phba->hba_flag &= ~DEFER_ERATT;
1566                 spin_unlock_irq(&phba->hbalock);
1567                 return;
1568         }
1569
1570         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1571                 "0479 Deferred Adapter Hardware Error "
1572                 "Data: x%x x%x x%x\n",
1573                 phba->work_hs,
1574                 phba->work_status[0], phba->work_status[1]);
1575
1576         spin_lock_irq(&phba->hbalock);
1577         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1578         spin_unlock_irq(&phba->hbalock);
1579
1580
1581         /*
1582          * Firmware stops when it triggred erratt. That could cause the I/Os
1583          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1584          * SCSI layer retry it after re-establishing link.
1585          */
1586         lpfc_sli_abort_fcp_rings(phba);
1587
1588         /*
1589          * There was a firmware error. Take the hba offline and then
1590          * attempt to restart it.
1591          */
1592         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1593         lpfc_offline(phba);
1594
1595         /* Wait for the ER1 bit to clear.*/
1596         while (phba->work_hs & HS_FFER1) {
1597                 msleep(100);
1598                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1599                         phba->work_hs = UNPLUG_ERR ;
1600                         break;
1601                 }
1602                 /* If driver is unloading let the worker thread continue */
1603                 if (phba->pport->load_flag & FC_UNLOADING) {
1604                         phba->work_hs = 0;
1605                         break;
1606                 }
1607         }
1608
1609         /*
1610          * This is to ptrotect against a race condition in which
1611          * first write to the host attention register clear the
1612          * host status register.
1613          */
1614         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1615                 phba->work_hs = old_host_status & ~HS_FFER1;
1616
1617         spin_lock_irq(&phba->hbalock);
1618         phba->hba_flag &= ~DEFER_ERATT;
1619         spin_unlock_irq(&phba->hbalock);
1620         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1621         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1622 }
1623
1624 static void
1625 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1626 {
1627         struct lpfc_board_event_header board_event;
1628         struct Scsi_Host *shost;
1629
1630         board_event.event_type = FC_REG_BOARD_EVENT;
1631         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1632         shost = lpfc_shost_from_vport(phba->pport);
1633         fc_host_post_vendor_event(shost, fc_get_event_number(),
1634                                   sizeof(board_event),
1635                                   (char *) &board_event,
1636                                   LPFC_NL_VENDOR_ID);
1637 }
1638
1639 /**
1640  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1641  * @phba: pointer to lpfc hba data structure.
1642  *
1643  * This routine is invoked to handle the following HBA hardware error
1644  * conditions:
1645  * 1 - HBA error attention interrupt
1646  * 2 - DMA ring index out of range
1647  * 3 - Mailbox command came back as unknown
1648  **/
1649 static void
1650 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1651 {
1652         struct lpfc_vport *vport = phba->pport;
1653         struct lpfc_sli   *psli = &phba->sli;
1654         uint32_t event_data;
1655         unsigned long temperature;
1656         struct temp_event temp_event_data;
1657         struct Scsi_Host  *shost;
1658
1659         /* If the pci channel is offline, ignore possible errors,
1660          * since we cannot communicate with the pci card anyway.
1661          */
1662         if (pci_channel_offline(phba->pcidev)) {
1663                 spin_lock_irq(&phba->hbalock);
1664                 phba->hba_flag &= ~DEFER_ERATT;
1665                 spin_unlock_irq(&phba->hbalock);
1666                 return;
1667         }
1668
1669         /* If resets are disabled then leave the HBA alone and return */
1670         if (!phba->cfg_enable_hba_reset)
1671                 return;
1672
1673         /* Send an internal error event to mgmt application */
1674         lpfc_board_errevt_to_mgmt(phba);
1675
1676         if (phba->hba_flag & DEFER_ERATT)
1677                 lpfc_handle_deferred_eratt(phba);
1678
1679         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1680                 if (phba->work_hs & HS_FFER6)
1681                         /* Re-establishing Link */
1682                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1683                                         "1301 Re-establishing Link "
1684                                         "Data: x%x x%x x%x\n",
1685                                         phba->work_hs, phba->work_status[0],
1686                                         phba->work_status[1]);
1687                 if (phba->work_hs & HS_FFER8)
1688                         /* Device Zeroization */
1689                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1690                                         "2861 Host Authentication device "
1691                                         "zeroization Data:x%x x%x x%x\n",
1692                                         phba->work_hs, phba->work_status[0],
1693                                         phba->work_status[1]);
1694
1695                 spin_lock_irq(&phba->hbalock);
1696                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1697                 spin_unlock_irq(&phba->hbalock);
1698
1699                 /*
1700                 * Firmware stops when it triggled erratt with HS_FFER6.
1701                 * That could cause the I/Os dropped by the firmware.
1702                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1703                 * retry it after re-establishing link.
1704                 */
1705                 lpfc_sli_abort_fcp_rings(phba);
1706
1707                 /*
1708                  * There was a firmware error.  Take the hba offline and then
1709                  * attempt to restart it.
1710                  */
1711                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1712                 lpfc_offline(phba);
1713                 lpfc_sli_brdrestart(phba);
1714                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1715                         lpfc_unblock_mgmt_io(phba);
1716                         return;
1717                 }
1718                 lpfc_unblock_mgmt_io(phba);
1719         } else if (phba->work_hs & HS_CRIT_TEMP) {
1720                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1721                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1722                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1723                 temp_event_data.data = (uint32_t)temperature;
1724
1725                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1726                                 "0406 Adapter maximum temperature exceeded "
1727                                 "(%ld), taking this port offline "
1728                                 "Data: x%x x%x x%x\n",
1729                                 temperature, phba->work_hs,
1730                                 phba->work_status[0], phba->work_status[1]);
1731
1732                 shost = lpfc_shost_from_vport(phba->pport);
1733                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1734                                           sizeof(temp_event_data),
1735                                           (char *) &temp_event_data,
1736                                           SCSI_NL_VID_TYPE_PCI
1737                                           | PCI_VENDOR_ID_EMULEX);
1738
1739                 spin_lock_irq(&phba->hbalock);
1740                 phba->over_temp_state = HBA_OVER_TEMP;
1741                 spin_unlock_irq(&phba->hbalock);
1742                 lpfc_offline_eratt(phba);
1743
1744         } else {
1745                 /* The if clause above forces this code path when the status
1746                  * failure is a value other than FFER6. Do not call the offline
1747                  * twice. This is the adapter hardware error path.
1748                  */
1749                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1750                                 "0457 Adapter Hardware Error "
1751                                 "Data: x%x x%x x%x\n",
1752                                 phba->work_hs,
1753                                 phba->work_status[0], phba->work_status[1]);
1754
1755                 event_data = FC_REG_DUMP_EVENT;
1756                 shost = lpfc_shost_from_vport(vport);
1757                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1758                                 sizeof(event_data), (char *) &event_data,
1759                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1760
1761                 lpfc_offline_eratt(phba);
1762         }
1763         return;
1764 }
1765
1766 /**
1767  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1768  * @phba: pointer to lpfc hba data structure.
1769  * @mbx_action: flag for mailbox shutdown action.
1770  *
1771  * This routine is invoked to perform an SLI4 port PCI function reset in
1772  * response to port status register polling attention. It waits for port
1773  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1774  * During this process, interrupt vectors are freed and later requested
1775  * for handling possible port resource change.
1776  **/
1777 static int
1778 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1779                             bool en_rn_msg)
1780 {
1781         int rc;
1782         uint32_t intr_mode;
1783
1784         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1785             LPFC_SLI_INTF_IF_TYPE_2) {
1786                 /*
1787                  * On error status condition, driver need to wait for port
1788                  * ready before performing reset.
1789                  */
1790                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1791                 if (rc)
1792                         return rc;
1793         }
1794
1795         /* need reset: attempt for port recovery */
1796         if (en_rn_msg)
1797                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1798                                 "2887 Reset Needed: Attempting Port "
1799                                 "Recovery...\n");
1800         lpfc_offline_prep(phba, mbx_action);
1801         lpfc_offline(phba);
1802         /* release interrupt for possible resource change */
1803         lpfc_sli4_disable_intr(phba);
1804         rc = lpfc_sli_brdrestart(phba);
1805         if (rc) {
1806                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1807                                 "6309 Failed to restart board\n");
1808                 return rc;
1809         }
1810         /* request and enable interrupt */
1811         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1812         if (intr_mode == LPFC_INTR_ERROR) {
1813                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1814                                 "3175 Failed to enable interrupt\n");
1815                 return -EIO;
1816         }
1817         phba->intr_mode = intr_mode;
1818         rc = lpfc_online(phba);
1819         if (rc == 0)
1820                 lpfc_unblock_mgmt_io(phba);
1821
1822         return rc;
1823 }
1824
1825 /**
1826  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1827  * @phba: pointer to lpfc hba data structure.
1828  *
1829  * This routine is invoked to handle the SLI4 HBA hardware error attention
1830  * conditions.
1831  **/
1832 static void
1833 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1834 {
1835         struct lpfc_vport *vport = phba->pport;
1836         uint32_t event_data;
1837         struct Scsi_Host *shost;
1838         uint32_t if_type;
1839         struct lpfc_register portstat_reg = {0};
1840         uint32_t reg_err1, reg_err2;
1841         uint32_t uerrlo_reg, uemasklo_reg;
1842         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1843         bool en_rn_msg = true;
1844         struct temp_event temp_event_data;
1845         struct lpfc_register portsmphr_reg;
1846         int rc, i;
1847
1848         /* If the pci channel is offline, ignore possible errors, since
1849          * we cannot communicate with the pci card anyway.
1850          */
1851         if (pci_channel_offline(phba->pcidev))
1852                 return;
1853
1854         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1855         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1856         switch (if_type) {
1857         case LPFC_SLI_INTF_IF_TYPE_0:
1858                 pci_rd_rc1 = lpfc_readl(
1859                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1860                                 &uerrlo_reg);
1861                 pci_rd_rc2 = lpfc_readl(
1862                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1863                                 &uemasklo_reg);
1864                 /* consider PCI bus read error as pci_channel_offline */
1865                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1866                         return;
1867                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1868                         lpfc_sli4_offline_eratt(phba);
1869                         return;
1870                 }
1871                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1872                                 "7623 Checking UE recoverable");
1873
1874                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1875                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1876                                        &portsmphr_reg.word0))
1877                                 continue;
1878
1879                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1880                                                    &portsmphr_reg);
1881                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1882                             LPFC_PORT_SEM_UE_RECOVERABLE)
1883                                 break;
1884                         /*Sleep for 1Sec, before checking SEMAPHORE */
1885                         msleep(1000);
1886                 }
1887
1888                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1889                                 "4827 smphr_port_status x%x : Waited %dSec",
1890                                 smphr_port_status, i);
1891
1892                 /* Recoverable UE, reset the HBA device */
1893                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1894                     LPFC_PORT_SEM_UE_RECOVERABLE) {
1895                         for (i = 0; i < 20; i++) {
1896                                 msleep(1000);
1897                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1898                                     &portsmphr_reg.word0) &&
1899                                     (LPFC_POST_STAGE_PORT_READY ==
1900                                      bf_get(lpfc_port_smphr_port_status,
1901                                      &portsmphr_reg))) {
1902                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
1903                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
1904                                         if (rc == 0)
1905                                                 return;
1906                                         lpfc_printf_log(phba,
1907                                                 KERN_ERR, LOG_INIT,
1908                                                 "4215 Failed to recover UE");
1909                                         break;
1910                                 }
1911                         }
1912                 }
1913                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1914                                 "7624 Firmware not ready: Failing UE recovery,"
1915                                 " waited %dSec", i);
1916                 lpfc_sli4_offline_eratt(phba);
1917                 break;
1918
1919         case LPFC_SLI_INTF_IF_TYPE_2:
1920         case LPFC_SLI_INTF_IF_TYPE_6:
1921                 pci_rd_rc1 = lpfc_readl(
1922                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1923                                 &portstat_reg.word0);
1924                 /* consider PCI bus read error as pci_channel_offline */
1925                 if (pci_rd_rc1 == -EIO) {
1926                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1927                                 "3151 PCI bus read access failure: x%x\n",
1928                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1929                         return;
1930                 }
1931                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1932                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1933                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1934                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1935                                 "2889 Port Overtemperature event, "
1936                                 "taking port offline Data: x%x x%x\n",
1937                                 reg_err1, reg_err2);
1938
1939                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1940                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1941                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1942                         temp_event_data.data = 0xFFFFFFFF;
1943
1944                         shost = lpfc_shost_from_vport(phba->pport);
1945                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1946                                                   sizeof(temp_event_data),
1947                                                   (char *)&temp_event_data,
1948                                                   SCSI_NL_VID_TYPE_PCI
1949                                                   | PCI_VENDOR_ID_EMULEX);
1950
1951                         spin_lock_irq(&phba->hbalock);
1952                         phba->over_temp_state = HBA_OVER_TEMP;
1953                         spin_unlock_irq(&phba->hbalock);
1954                         lpfc_sli4_offline_eratt(phba);
1955                         return;
1956                 }
1957                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1958                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1959                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1960                                         "3143 Port Down: Firmware Update "
1961                                         "Detected\n");
1962                         en_rn_msg = false;
1963                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1964                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1965                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1966                                         "3144 Port Down: Debug Dump\n");
1967                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1968                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1969                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1970                                         "3145 Port Down: Provisioning\n");
1971
1972                 /* If resets are disabled then leave the HBA alone and return */
1973                 if (!phba->cfg_enable_hba_reset)
1974                         return;
1975
1976                 /* Check port status register for function reset */
1977                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1978                                 en_rn_msg);
1979                 if (rc == 0) {
1980                         /* don't report event on forced debug dump */
1981                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1982                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1983                                 return;
1984                         else
1985                                 break;
1986                 }
1987                 /* fall through for not able to recover */
1988                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1989                                 "3152 Unrecoverable error, bring the port "
1990                                 "offline\n");
1991                 lpfc_sli4_offline_eratt(phba);
1992                 break;
1993         case LPFC_SLI_INTF_IF_TYPE_1:
1994         default:
1995                 break;
1996         }
1997         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1998                         "3123 Report dump event to upper layer\n");
1999         /* Send an internal error event to mgmt application */
2000         lpfc_board_errevt_to_mgmt(phba);
2001
2002         event_data = FC_REG_DUMP_EVENT;
2003         shost = lpfc_shost_from_vport(vport);
2004         fc_host_post_vendor_event(shost, fc_get_event_number(),
2005                                   sizeof(event_data), (char *) &event_data,
2006                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
2007 }
2008
2009 /**
2010  * lpfc_handle_eratt - Wrapper func for handling hba error attention
2011  * @phba: pointer to lpfc HBA data structure.
2012  *
2013  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
2014  * routine from the API jump table function pointer from the lpfc_hba struct.
2015  *
2016  * Return codes
2017  *   0 - success.
2018  *   Any other value - error.
2019  **/
2020 void
2021 lpfc_handle_eratt(struct lpfc_hba *phba)
2022 {
2023         (*phba->lpfc_handle_eratt)(phba);
2024 }
2025
2026 /**
2027  * lpfc_handle_latt - The HBA link event handler
2028  * @phba: pointer to lpfc hba data structure.
2029  *
2030  * This routine is invoked from the worker thread to handle a HBA host
2031  * attention link event. SLI3 only.
2032  **/
2033 void
2034 lpfc_handle_latt(struct lpfc_hba *phba)
2035 {
2036         struct lpfc_vport *vport = phba->pport;
2037         struct lpfc_sli   *psli = &phba->sli;
2038         LPFC_MBOXQ_t *pmb;
2039         volatile uint32_t control;
2040         struct lpfc_dmabuf *mp;
2041         int rc = 0;
2042
2043         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2044         if (!pmb) {
2045                 rc = 1;
2046                 goto lpfc_handle_latt_err_exit;
2047         }
2048
2049         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2050         if (!mp) {
2051                 rc = 2;
2052                 goto lpfc_handle_latt_free_pmb;
2053         }
2054
2055         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2056         if (!mp->virt) {
2057                 rc = 3;
2058                 goto lpfc_handle_latt_free_mp;
2059         }
2060
2061         /* Cleanup any outstanding ELS commands */
2062         lpfc_els_flush_all_cmd(phba);
2063
2064         psli->slistat.link_event++;
2065         lpfc_read_topology(phba, pmb, mp);
2066         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2067         pmb->vport = vport;
2068         /* Block ELS IOCBs until we have processed this mbox command */
2069         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2070         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2071         if (rc == MBX_NOT_FINISHED) {
2072                 rc = 4;
2073                 goto lpfc_handle_latt_free_mbuf;
2074         }
2075
2076         /* Clear Link Attention in HA REG */
2077         spin_lock_irq(&phba->hbalock);
2078         writel(HA_LATT, phba->HAregaddr);
2079         readl(phba->HAregaddr); /* flush */
2080         spin_unlock_irq(&phba->hbalock);
2081
2082         return;
2083
2084 lpfc_handle_latt_free_mbuf:
2085         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2086         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2087 lpfc_handle_latt_free_mp:
2088         kfree(mp);
2089 lpfc_handle_latt_free_pmb:
2090         mempool_free(pmb, phba->mbox_mem_pool);
2091 lpfc_handle_latt_err_exit:
2092         /* Enable Link attention interrupts */
2093         spin_lock_irq(&phba->hbalock);
2094         psli->sli_flag |= LPFC_PROCESS_LA;
2095         control = readl(phba->HCregaddr);
2096         control |= HC_LAINT_ENA;
2097         writel(control, phba->HCregaddr);
2098         readl(phba->HCregaddr); /* flush */
2099
2100         /* Clear Link Attention in HA REG */
2101         writel(HA_LATT, phba->HAregaddr);
2102         readl(phba->HAregaddr); /* flush */
2103         spin_unlock_irq(&phba->hbalock);
2104         lpfc_linkdown(phba);
2105         phba->link_state = LPFC_HBA_ERROR;
2106
2107         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
2108                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2109
2110         return;
2111 }
2112
2113 /**
2114  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2115  * @phba: pointer to lpfc hba data structure.
2116  * @vpd: pointer to the vital product data.
2117  * @len: length of the vital product data in bytes.
2118  *
2119  * This routine parses the Vital Product Data (VPD). The VPD is treated as
2120  * an array of characters. In this routine, the ModelName, ProgramType, and
2121  * ModelDesc, etc. fields of the phba data structure will be populated.
2122  *
2123  * Return codes
2124  *   0 - pointer to the VPD passed in is NULL
2125  *   1 - success
2126  **/
2127 int
2128 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2129 {
2130         uint8_t lenlo, lenhi;
2131         int Length;
2132         int i, j;
2133         int finished = 0;
2134         int index = 0;
2135
2136         if (!vpd)
2137                 return 0;
2138
2139         /* Vital Product */
2140         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2141                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2142                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2143                         (uint32_t) vpd[3]);
2144         while (!finished && (index < (len - 4))) {
2145                 switch (vpd[index]) {
2146                 case 0x82:
2147                 case 0x91:
2148                         index += 1;
2149                         lenlo = vpd[index];
2150                         index += 1;
2151                         lenhi = vpd[index];
2152                         index += 1;
2153                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2154                         index += i;
2155                         break;
2156                 case 0x90:
2157                         index += 1;
2158                         lenlo = vpd[index];
2159                         index += 1;
2160                         lenhi = vpd[index];
2161                         index += 1;
2162                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2163                         if (Length > len - index)
2164                                 Length = len - index;
2165                         while (Length > 0) {
2166                         /* Look for Serial Number */
2167                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2168                                 index += 2;
2169                                 i = vpd[index];
2170                                 index += 1;
2171                                 j = 0;
2172                                 Length -= (3+i);
2173                                 while(i--) {
2174                                         phba->SerialNumber[j++] = vpd[index++];
2175                                         if (j == 31)
2176                                                 break;
2177                                 }
2178                                 phba->SerialNumber[j] = 0;
2179                                 continue;
2180                         }
2181                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2182                                 phba->vpd_flag |= VPD_MODEL_DESC;
2183                                 index += 2;
2184                                 i = vpd[index];
2185                                 index += 1;
2186                                 j = 0;
2187                                 Length -= (3+i);
2188                                 while(i--) {
2189                                         phba->ModelDesc[j++] = vpd[index++];
2190                                         if (j == 255)
2191                                                 break;
2192                                 }
2193                                 phba->ModelDesc[j] = 0;
2194                                 continue;
2195                         }
2196                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2197                                 phba->vpd_flag |= VPD_MODEL_NAME;
2198                                 index += 2;
2199                                 i = vpd[index];
2200                                 index += 1;
2201                                 j = 0;
2202                                 Length -= (3+i);
2203                                 while(i--) {
2204                                         phba->ModelName[j++] = vpd[index++];
2205                                         if (j == 79)
2206                                                 break;
2207                                 }
2208                                 phba->ModelName[j] = 0;
2209                                 continue;
2210                         }
2211                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2212                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2213                                 index += 2;
2214                                 i = vpd[index];
2215                                 index += 1;
2216                                 j = 0;
2217                                 Length -= (3+i);
2218                                 while(i--) {
2219                                         phba->ProgramType[j++] = vpd[index++];
2220                                         if (j == 255)
2221                                                 break;
2222                                 }
2223                                 phba->ProgramType[j] = 0;
2224                                 continue;
2225                         }
2226                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2227                                 phba->vpd_flag |= VPD_PORT;
2228                                 index += 2;
2229                                 i = vpd[index];
2230                                 index += 1;
2231                                 j = 0;
2232                                 Length -= (3+i);
2233                                 while(i--) {
2234                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
2235                                             (phba->sli4_hba.pport_name_sta ==
2236                                              LPFC_SLI4_PPNAME_GET)) {
2237                                                 j++;
2238                                                 index++;
2239                                         } else
2240                                                 phba->Port[j++] = vpd[index++];
2241                                         if (j == 19)
2242                                                 break;
2243                                 }
2244                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2245                                     (phba->sli4_hba.pport_name_sta ==
2246                                      LPFC_SLI4_PPNAME_NON))
2247                                         phba->Port[j] = 0;
2248                                 continue;
2249                         }
2250                         else {
2251                                 index += 2;
2252                                 i = vpd[index];
2253                                 index += 1;
2254                                 index += i;
2255                                 Length -= (3 + i);
2256                         }
2257                 }
2258                 finished = 0;
2259                 break;
2260                 case 0x78:
2261                         finished = 1;
2262                         break;
2263                 default:
2264                         index ++;
2265                         break;
2266                 }
2267         }
2268
2269         return(1);
2270 }
2271
2272 /**
2273  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2274  * @phba: pointer to lpfc hba data structure.
2275  * @mdp: pointer to the data structure to hold the derived model name.
2276  * @descp: pointer to the data structure to hold the derived description.
2277  *
2278  * This routine retrieves HBA's description based on its registered PCI device
2279  * ID. The @descp passed into this function points to an array of 256 chars. It
2280  * shall be returned with the model name, maximum speed, and the host bus type.
2281  * The @mdp passed into this function points to an array of 80 chars. When the
2282  * function returns, the @mdp will be filled with the model name.
2283  **/
2284 static void
2285 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2286 {
2287         lpfc_vpd_t *vp;
2288         uint16_t dev_id = phba->pcidev->device;
2289         int max_speed;
2290         int GE = 0;
2291         int oneConnect = 0; /* default is not a oneConnect */
2292         struct {
2293                 char *name;
2294                 char *bus;
2295                 char *function;
2296         } m = {"<Unknown>", "", ""};
2297
2298         if (mdp && mdp[0] != '\0'
2299                 && descp && descp[0] != '\0')
2300                 return;
2301
2302         if (phba->lmt & LMT_64Gb)
2303                 max_speed = 64;
2304         else if (phba->lmt & LMT_32Gb)
2305                 max_speed = 32;
2306         else if (phba->lmt & LMT_16Gb)
2307                 max_speed = 16;
2308         else if (phba->lmt & LMT_10Gb)
2309                 max_speed = 10;
2310         else if (phba->lmt & LMT_8Gb)
2311                 max_speed = 8;
2312         else if (phba->lmt & LMT_4Gb)
2313                 max_speed = 4;
2314         else if (phba->lmt & LMT_2Gb)
2315                 max_speed = 2;
2316         else if (phba->lmt & LMT_1Gb)
2317                 max_speed = 1;
2318         else
2319                 max_speed = 0;
2320
2321         vp = &phba->vpd;
2322
2323         switch (dev_id) {
2324         case PCI_DEVICE_ID_FIREFLY:
2325                 m = (typeof(m)){"LP6000", "PCI",
2326                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2327                 break;
2328         case PCI_DEVICE_ID_SUPERFLY:
2329                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2330                         m = (typeof(m)){"LP7000", "PCI", ""};
2331                 else
2332                         m = (typeof(m)){"LP7000E", "PCI", ""};
2333                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2334                 break;
2335         case PCI_DEVICE_ID_DRAGONFLY:
2336                 m = (typeof(m)){"LP8000", "PCI",
2337                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2338                 break;
2339         case PCI_DEVICE_ID_CENTAUR:
2340                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2341                         m = (typeof(m)){"LP9002", "PCI", ""};
2342                 else
2343                         m = (typeof(m)){"LP9000", "PCI", ""};
2344                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2345                 break;
2346         case PCI_DEVICE_ID_RFLY:
2347                 m = (typeof(m)){"LP952", "PCI",
2348                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2349                 break;
2350         case PCI_DEVICE_ID_PEGASUS:
2351                 m = (typeof(m)){"LP9802", "PCI-X",
2352                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2353                 break;
2354         case PCI_DEVICE_ID_THOR:
2355                 m = (typeof(m)){"LP10000", "PCI-X",
2356                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2357                 break;
2358         case PCI_DEVICE_ID_VIPER:
2359                 m = (typeof(m)){"LPX1000",  "PCI-X",
2360                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2361                 break;
2362         case PCI_DEVICE_ID_PFLY:
2363                 m = (typeof(m)){"LP982", "PCI-X",
2364                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2365                 break;
2366         case PCI_DEVICE_ID_TFLY:
2367                 m = (typeof(m)){"LP1050", "PCI-X",
2368                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2369                 break;
2370         case PCI_DEVICE_ID_HELIOS:
2371                 m = (typeof(m)){"LP11000", "PCI-X2",
2372                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2373                 break;
2374         case PCI_DEVICE_ID_HELIOS_SCSP:
2375                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2376                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2377                 break;
2378         case PCI_DEVICE_ID_HELIOS_DCSP:
2379                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2380                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2381                 break;
2382         case PCI_DEVICE_ID_NEPTUNE:
2383                 m = (typeof(m)){"LPe1000", "PCIe",
2384                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2385                 break;
2386         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2387                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2388                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2389                 break;
2390         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2391                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2392                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2393                 break;
2394         case PCI_DEVICE_ID_BMID:
2395                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2396                 break;
2397         case PCI_DEVICE_ID_BSMB:
2398                 m = (typeof(m)){"LP111", "PCI-X2",
2399                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2400                 break;
2401         case PCI_DEVICE_ID_ZEPHYR:
2402                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2403                 break;
2404         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2405                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2406                 break;
2407         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2408                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2409                 GE = 1;
2410                 break;
2411         case PCI_DEVICE_ID_ZMID:
2412                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2413                 break;
2414         case PCI_DEVICE_ID_ZSMB:
2415                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2416                 break;
2417         case PCI_DEVICE_ID_LP101:
2418                 m = (typeof(m)){"LP101", "PCI-X",
2419                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2420                 break;
2421         case PCI_DEVICE_ID_LP10000S:
2422                 m = (typeof(m)){"LP10000-S", "PCI",
2423                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2424                 break;
2425         case PCI_DEVICE_ID_LP11000S:
2426                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2427                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2428                 break;
2429         case PCI_DEVICE_ID_LPE11000S:
2430                 m = (typeof(m)){"LPe11000-S", "PCIe",
2431                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2432                 break;
2433         case PCI_DEVICE_ID_SAT:
2434                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2435                 break;
2436         case PCI_DEVICE_ID_SAT_MID:
2437                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2438                 break;
2439         case PCI_DEVICE_ID_SAT_SMB:
2440                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2441                 break;
2442         case PCI_DEVICE_ID_SAT_DCSP:
2443                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2444                 break;
2445         case PCI_DEVICE_ID_SAT_SCSP:
2446                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2447                 break;
2448         case PCI_DEVICE_ID_SAT_S:
2449                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2450                 break;
2451         case PCI_DEVICE_ID_HORNET:
2452                 m = (typeof(m)){"LP21000", "PCIe",
2453                                 "Obsolete, Unsupported FCoE Adapter"};
2454                 GE = 1;
2455                 break;
2456         case PCI_DEVICE_ID_PROTEUS_VF:
2457                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2458                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2459                 break;
2460         case PCI_DEVICE_ID_PROTEUS_PF:
2461                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2462                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2463                 break;
2464         case PCI_DEVICE_ID_PROTEUS_S:
2465                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2466                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2467                 break;
2468         case PCI_DEVICE_ID_TIGERSHARK:
2469                 oneConnect = 1;
2470                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2471                 break;
2472         case PCI_DEVICE_ID_TOMCAT:
2473                 oneConnect = 1;
2474                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2475                 break;
2476         case PCI_DEVICE_ID_FALCON:
2477                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2478                                 "EmulexSecure Fibre"};
2479                 break;
2480         case PCI_DEVICE_ID_BALIUS:
2481                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2482                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2483                 break;
2484         case PCI_DEVICE_ID_LANCER_FC:
2485                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2486                 break;
2487         case PCI_DEVICE_ID_LANCER_FC_VF:
2488                 m = (typeof(m)){"LPe16000", "PCIe",
2489                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2490                 break;
2491         case PCI_DEVICE_ID_LANCER_FCOE:
2492                 oneConnect = 1;
2493                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2494                 break;
2495         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2496                 oneConnect = 1;
2497                 m = (typeof(m)){"OCe15100", "PCIe",
2498                                 "Obsolete, Unsupported FCoE"};
2499                 break;
2500         case PCI_DEVICE_ID_LANCER_G6_FC:
2501                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2502                 break;
2503         case PCI_DEVICE_ID_LANCER_G7_FC:
2504                 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2505                 break;
2506         case PCI_DEVICE_ID_SKYHAWK:
2507         case PCI_DEVICE_ID_SKYHAWK_VF:
2508                 oneConnect = 1;
2509                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2510                 break;
2511         default:
2512                 m = (typeof(m)){"Unknown", "", ""};
2513                 break;
2514         }
2515
2516         if (mdp && mdp[0] == '\0')
2517                 snprintf(mdp, 79,"%s", m.name);
2518         /*
2519          * oneConnect hba requires special processing, they are all initiators
2520          * and we put the port number on the end
2521          */
2522         if (descp && descp[0] == '\0') {
2523                 if (oneConnect)
2524                         snprintf(descp, 255,
2525                                 "Emulex OneConnect %s, %s Initiator %s",
2526                                 m.name, m.function,
2527                                 phba->Port);
2528                 else if (max_speed == 0)
2529                         snprintf(descp, 255,
2530                                 "Emulex %s %s %s",
2531                                 m.name, m.bus, m.function);
2532                 else
2533                         snprintf(descp, 255,
2534                                 "Emulex %s %d%s %s %s",
2535                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2536                                 m.bus, m.function);
2537         }
2538 }
2539
2540 /**
2541  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2542  * @phba: pointer to lpfc hba data structure.
2543  * @pring: pointer to a IOCB ring.
2544  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2545  *
2546  * This routine posts a given number of IOCBs with the associated DMA buffer
2547  * descriptors specified by the cnt argument to the given IOCB ring.
2548  *
2549  * Return codes
2550  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2551  **/
2552 int
2553 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2554 {
2555         IOCB_t *icmd;
2556         struct lpfc_iocbq *iocb;
2557         struct lpfc_dmabuf *mp1, *mp2;
2558
2559         cnt += pring->missbufcnt;
2560
2561         /* While there are buffers to post */
2562         while (cnt > 0) {
2563                 /* Allocate buffer for  command iocb */
2564                 iocb = lpfc_sli_get_iocbq(phba);
2565                 if (iocb == NULL) {
2566                         pring->missbufcnt = cnt;
2567                         return cnt;
2568                 }
2569                 icmd = &iocb->iocb;
2570
2571                 /* 2 buffers can be posted per command */
2572                 /* Allocate buffer to post */
2573                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2574                 if (mp1)
2575                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2576                 if (!mp1 || !mp1->virt) {
2577                         kfree(mp1);
2578                         lpfc_sli_release_iocbq(phba, iocb);
2579                         pring->missbufcnt = cnt;
2580                         return cnt;
2581                 }
2582
2583                 INIT_LIST_HEAD(&mp1->list);
2584                 /* Allocate buffer to post */
2585                 if (cnt > 1) {
2586                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2587                         if (mp2)
2588                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2589                                                             &mp2->phys);
2590                         if (!mp2 || !mp2->virt) {
2591                                 kfree(mp2);
2592                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2593                                 kfree(mp1);
2594                                 lpfc_sli_release_iocbq(phba, iocb);
2595                                 pring->missbufcnt = cnt;
2596                                 return cnt;
2597                         }
2598
2599                         INIT_LIST_HEAD(&mp2->list);
2600                 } else {
2601                         mp2 = NULL;
2602                 }
2603
2604                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2605                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2606                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2607                 icmd->ulpBdeCount = 1;
2608                 cnt--;
2609                 if (mp2) {
2610                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2611                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2612                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2613                         cnt--;
2614                         icmd->ulpBdeCount = 2;
2615                 }
2616
2617                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2618                 icmd->ulpLe = 1;
2619
2620                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2621                     IOCB_ERROR) {
2622                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2623                         kfree(mp1);
2624                         cnt++;
2625                         if (mp2) {
2626                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2627                                 kfree(mp2);
2628                                 cnt++;
2629                         }
2630                         lpfc_sli_release_iocbq(phba, iocb);
2631                         pring->missbufcnt = cnt;
2632                         return cnt;
2633                 }
2634                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2635                 if (mp2)
2636                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2637         }
2638         pring->missbufcnt = 0;
2639         return 0;
2640 }
2641
2642 /**
2643  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2644  * @phba: pointer to lpfc hba data structure.
2645  *
2646  * This routine posts initial receive IOCB buffers to the ELS ring. The
2647  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2648  * set to 64 IOCBs. SLI3 only.
2649  *
2650  * Return codes
2651  *   0 - success (currently always success)
2652  **/
2653 static int
2654 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2655 {
2656         struct lpfc_sli *psli = &phba->sli;
2657
2658         /* Ring 0, ELS / CT buffers */
2659         lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2660         /* Ring 2 - FCP no buffers needed */
2661
2662         return 0;
2663 }
2664
2665 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2666
2667 /**
2668  * lpfc_sha_init - Set up initial array of hash table entries
2669  * @HashResultPointer: pointer to an array as hash table.
2670  *
2671  * This routine sets up the initial values to the array of hash table entries
2672  * for the LC HBAs.
2673  **/
2674 static void
2675 lpfc_sha_init(uint32_t * HashResultPointer)
2676 {
2677         HashResultPointer[0] = 0x67452301;
2678         HashResultPointer[1] = 0xEFCDAB89;
2679         HashResultPointer[2] = 0x98BADCFE;
2680         HashResultPointer[3] = 0x10325476;
2681         HashResultPointer[4] = 0xC3D2E1F0;
2682 }
2683
2684 /**
2685  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2686  * @HashResultPointer: pointer to an initial/result hash table.
2687  * @HashWorkingPointer: pointer to an working hash table.
2688  *
2689  * This routine iterates an initial hash table pointed by @HashResultPointer
2690  * with the values from the working hash table pointeed by @HashWorkingPointer.
2691  * The results are putting back to the initial hash table, returned through
2692  * the @HashResultPointer as the result hash table.
2693  **/
2694 static void
2695 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2696 {
2697         int t;
2698         uint32_t TEMP;
2699         uint32_t A, B, C, D, E;
2700         t = 16;
2701         do {
2702                 HashWorkingPointer[t] =
2703                     S(1,
2704                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2705                                                                      8] ^
2706                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2707         } while (++t <= 79);
2708         t = 0;
2709         A = HashResultPointer[0];
2710         B = HashResultPointer[1];
2711         C = HashResultPointer[2];
2712         D = HashResultPointer[3];
2713         E = HashResultPointer[4];
2714
2715         do {
2716                 if (t < 20) {
2717                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2718                 } else if (t < 40) {
2719                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2720                 } else if (t < 60) {
2721                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2722                 } else {
2723                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2724                 }
2725                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2726                 E = D;
2727                 D = C;
2728                 C = S(30, B);
2729                 B = A;
2730                 A = TEMP;
2731         } while (++t <= 79);
2732
2733         HashResultPointer[0] += A;
2734         HashResultPointer[1] += B;
2735         HashResultPointer[2] += C;
2736         HashResultPointer[3] += D;
2737         HashResultPointer[4] += E;
2738
2739 }
2740
2741 /**
2742  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2743  * @RandomChallenge: pointer to the entry of host challenge random number array.
2744  * @HashWorking: pointer to the entry of the working hash array.
2745  *
2746  * This routine calculates the working hash array referred by @HashWorking
2747  * from the challenge random numbers associated with the host, referred by
2748  * @RandomChallenge. The result is put into the entry of the working hash
2749  * array and returned by reference through @HashWorking.
2750  **/
2751 static void
2752 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2753 {
2754         *HashWorking = (*RandomChallenge ^ *HashWorking);
2755 }
2756
2757 /**
2758  * lpfc_hba_init - Perform special handling for LC HBA initialization
2759  * @phba: pointer to lpfc hba data structure.
2760  * @hbainit: pointer to an array of unsigned 32-bit integers.
2761  *
2762  * This routine performs the special handling for LC HBA initialization.
2763  **/
2764 void
2765 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2766 {
2767         int t;
2768         uint32_t *HashWorking;
2769         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2770
2771         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2772         if (!HashWorking)
2773                 return;
2774
2775         HashWorking[0] = HashWorking[78] = *pwwnn++;
2776         HashWorking[1] = HashWorking[79] = *pwwnn;
2777
2778         for (t = 0; t < 7; t++)
2779                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2780
2781         lpfc_sha_init(hbainit);
2782         lpfc_sha_iterate(hbainit, HashWorking);
2783         kfree(HashWorking);
2784 }
2785
2786 /**
2787  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2788  * @vport: pointer to a virtual N_Port data structure.
2789  *
2790  * This routine performs the necessary cleanups before deleting the @vport.
2791  * It invokes the discovery state machine to perform necessary state
2792  * transitions and to release the ndlps associated with the @vport. Note,
2793  * the physical port is treated as @vport 0.
2794  **/
2795 void
2796 lpfc_cleanup(struct lpfc_vport *vport)
2797 {
2798         struct lpfc_hba   *phba = vport->phba;
2799         struct lpfc_nodelist *ndlp, *next_ndlp;
2800         int i = 0;
2801
2802         if (phba->link_state > LPFC_LINK_DOWN)
2803                 lpfc_port_link_failure(vport);
2804
2805         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2806                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2807                         ndlp = lpfc_enable_node(vport, ndlp,
2808                                                 NLP_STE_UNUSED_NODE);
2809                         if (!ndlp)
2810                                 continue;
2811                         spin_lock_irq(&phba->ndlp_lock);
2812                         NLP_SET_FREE_REQ(ndlp);
2813                         spin_unlock_irq(&phba->ndlp_lock);
2814                         /* Trigger the release of the ndlp memory */
2815                         lpfc_nlp_put(ndlp);
2816                         continue;
2817                 }
2818                 spin_lock_irq(&phba->ndlp_lock);
2819                 if (NLP_CHK_FREE_REQ(ndlp)) {
2820                         /* The ndlp should not be in memory free mode already */
2821                         spin_unlock_irq(&phba->ndlp_lock);
2822                         continue;
2823                 } else
2824                         /* Indicate request for freeing ndlp memory */
2825                         NLP_SET_FREE_REQ(ndlp);
2826                 spin_unlock_irq(&phba->ndlp_lock);
2827
2828                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2829                     ndlp->nlp_DID == Fabric_DID) {
2830                         /* Just free up ndlp with Fabric_DID for vports */
2831                         lpfc_nlp_put(ndlp);
2832                         continue;
2833                 }
2834
2835                 /* take care of nodes in unused state before the state
2836                  * machine taking action.
2837                  */
2838                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2839                         lpfc_nlp_put(ndlp);
2840                         continue;
2841                 }
2842
2843                 if (ndlp->nlp_type & NLP_FABRIC)
2844                         lpfc_disc_state_machine(vport, ndlp, NULL,
2845                                         NLP_EVT_DEVICE_RECOVERY);
2846
2847                 lpfc_disc_state_machine(vport, ndlp, NULL,
2848                                              NLP_EVT_DEVICE_RM);
2849         }
2850
2851         /* At this point, ALL ndlp's should be gone
2852          * because of the previous NLP_EVT_DEVICE_RM.
2853          * Lets wait for this to happen, if needed.
2854          */
2855         while (!list_empty(&vport->fc_nodes)) {
2856                 if (i++ > 3000) {
2857                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2858                                 "0233 Nodelist not empty\n");
2859                         list_for_each_entry_safe(ndlp, next_ndlp,
2860                                                 &vport->fc_nodes, nlp_listp) {
2861                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2862                                                 LOG_NODE,
2863                                                 "0282 did:x%x ndlp:x%p "
2864                                                 "usgmap:x%x refcnt:%d\n",
2865                                                 ndlp->nlp_DID, (void *)ndlp,
2866                                                 ndlp->nlp_usg_map,
2867                                                 kref_read(&ndlp->kref));
2868                         }
2869                         break;
2870                 }
2871
2872                 /* Wait for any activity on ndlps to settle */
2873                 msleep(10);
2874         }
2875         lpfc_cleanup_vports_rrqs(vport, NULL);
2876 }
2877
2878 /**
2879  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2880  * @vport: pointer to a virtual N_Port data structure.
2881  *
2882  * This routine stops all the timers associated with a @vport. This function
2883  * is invoked before disabling or deleting a @vport. Note that the physical
2884  * port is treated as @vport 0.
2885  **/
2886 void
2887 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2888 {
2889         del_timer_sync(&vport->els_tmofunc);
2890         del_timer_sync(&vport->delayed_disc_tmo);
2891         lpfc_can_disctmo(vport);
2892         return;
2893 }
2894
2895 /**
2896  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2897  * @phba: pointer to lpfc hba data structure.
2898  *
2899  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2900  * caller of this routine should already hold the host lock.
2901  **/
2902 void
2903 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2904 {
2905         /* Clear pending FCF rediscovery wait flag */
2906         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2907
2908         /* Now, try to stop the timer */
2909         del_timer(&phba->fcf.redisc_wait);
2910 }
2911
2912 /**
2913  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2914  * @phba: pointer to lpfc hba data structure.
2915  *
2916  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2917  * checks whether the FCF rediscovery wait timer is pending with the host
2918  * lock held before proceeding with disabling the timer and clearing the
2919  * wait timer pendig flag.
2920  **/
2921 void
2922 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2923 {
2924         spin_lock_irq(&phba->hbalock);
2925         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2926                 /* FCF rediscovery timer already fired or stopped */
2927                 spin_unlock_irq(&phba->hbalock);
2928                 return;
2929         }
2930         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2931         /* Clear failover in progress flags */
2932         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2933         spin_unlock_irq(&phba->hbalock);
2934 }
2935
2936 /**
2937  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2938  * @phba: pointer to lpfc hba data structure.
2939  *
2940  * This routine stops all the timers associated with a HBA. This function is
2941  * invoked before either putting a HBA offline or unloading the driver.
2942  **/
2943 void
2944 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2945 {
2946         lpfc_stop_vport_timers(phba->pport);
2947         del_timer_sync(&phba->sli.mbox_tmo);
2948         del_timer_sync(&phba->fabric_block_timer);
2949         del_timer_sync(&phba->eratt_poll);
2950         del_timer_sync(&phba->hb_tmofunc);
2951         if (phba->sli_rev == LPFC_SLI_REV4) {
2952                 del_timer_sync(&phba->rrq_tmr);
2953                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2954         }
2955         phba->hb_outstanding = 0;
2956
2957         switch (phba->pci_dev_grp) {
2958         case LPFC_PCI_DEV_LP:
2959                 /* Stop any LightPulse device specific driver timers */
2960                 del_timer_sync(&phba->fcp_poll_timer);
2961                 break;
2962         case LPFC_PCI_DEV_OC:
2963                 /* Stop any OneConnect device sepcific driver timers */
2964                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2965                 break;
2966         default:
2967                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2968                                 "0297 Invalid device group (x%x)\n",
2969                                 phba->pci_dev_grp);
2970                 break;
2971         }
2972         return;
2973 }
2974
2975 /**
2976  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2977  * @phba: pointer to lpfc hba data structure.
2978  *
2979  * This routine marks a HBA's management interface as blocked. Once the HBA's
2980  * management interface is marked as blocked, all the user space access to
2981  * the HBA, whether they are from sysfs interface or libdfc interface will
2982  * all be blocked. The HBA is set to block the management interface when the
2983  * driver prepares the HBA interface for online or offline.
2984  **/
2985 static void
2986 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2987 {
2988         unsigned long iflag;
2989         uint8_t actcmd = MBX_HEARTBEAT;
2990         unsigned long timeout;
2991
2992         spin_lock_irqsave(&phba->hbalock, iflag);
2993         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2994         spin_unlock_irqrestore(&phba->hbalock, iflag);
2995         if (mbx_action == LPFC_MBX_NO_WAIT)
2996                 return;
2997         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2998         spin_lock_irqsave(&phba->hbalock, iflag);
2999         if (phba->sli.mbox_active) {
3000                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
3001                 /* Determine how long we might wait for the active mailbox
3002                  * command to be gracefully completed by firmware.
3003                  */
3004                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
3005                                 phba->sli.mbox_active) * 1000) + jiffies;
3006         }
3007         spin_unlock_irqrestore(&phba->hbalock, iflag);
3008
3009         /* Wait for the outstnading mailbox command to complete */
3010         while (phba->sli.mbox_active) {
3011                 /* Check active mailbox complete status every 2ms */
3012                 msleep(2);
3013                 if (time_after(jiffies, timeout)) {
3014                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3015                                 "2813 Mgmt IO is Blocked %x "
3016                                 "- mbox cmd %x still active\n",
3017                                 phba->sli.sli_flag, actcmd);
3018                         break;
3019                 }
3020         }
3021 }
3022
3023 /**
3024  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3025  * @phba: pointer to lpfc hba data structure.
3026  *
3027  * Allocate RPIs for all active remote nodes. This is needed whenever
3028  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3029  * is to fixup the temporary rpi assignments.
3030  **/
3031 void
3032 lpfc_sli4_node_prep(struct lpfc_hba *phba)
3033 {
3034         struct lpfc_nodelist  *ndlp, *next_ndlp;
3035         struct lpfc_vport **vports;
3036         int i, rpi;
3037         unsigned long flags;
3038
3039         if (phba->sli_rev != LPFC_SLI_REV4)
3040                 return;
3041
3042         vports = lpfc_create_vport_work_array(phba);
3043         if (vports == NULL)
3044                 return;
3045
3046         for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3047                 if (vports[i]->load_flag & FC_UNLOADING)
3048                         continue;
3049
3050                 list_for_each_entry_safe(ndlp, next_ndlp,
3051                                          &vports[i]->fc_nodes,
3052                                          nlp_listp) {
3053                         if (!NLP_CHK_NODE_ACT(ndlp))
3054                                 continue;
3055                         rpi = lpfc_sli4_alloc_rpi(phba);
3056                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
3057                                 spin_lock_irqsave(&phba->ndlp_lock, flags);
3058                                 NLP_CLR_NODE_ACT(ndlp);
3059                                 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3060                                 continue;
3061                         }
3062                         ndlp->nlp_rpi = rpi;
3063                         lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3064                                          "0009 rpi:%x DID:%x "
3065                                          "flg:%x map:%x %p\n", ndlp->nlp_rpi,
3066                                          ndlp->nlp_DID, ndlp->nlp_flag,
3067                                          ndlp->nlp_usg_map, ndlp);
3068                 }
3069         }
3070         lpfc_destroy_vport_work_array(phba, vports);
3071 }
3072
3073 /**
3074  * lpfc_online - Initialize and bring a HBA online
3075  * @phba: pointer to lpfc hba data structure.
3076  *
3077  * This routine initializes the HBA and brings a HBA online. During this
3078  * process, the management interface is blocked to prevent user space access
3079  * to the HBA interfering with the driver initialization.
3080  *
3081  * Return codes
3082  *   0 - successful
3083  *   1 - failed
3084  **/
3085 int
3086 lpfc_online(struct lpfc_hba *phba)
3087 {
3088         struct lpfc_vport *vport;
3089         struct lpfc_vport **vports;
3090         int i, error = 0;
3091         bool vpis_cleared = false;
3092
3093         if (!phba)
3094                 return 0;
3095         vport = phba->pport;
3096
3097         if (!(vport->fc_flag & FC_OFFLINE_MODE))
3098                 return 0;
3099
3100         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3101                         "0458 Bring Adapter online\n");
3102
3103         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3104
3105         if (phba->sli_rev == LPFC_SLI_REV4) {
3106                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3107                         lpfc_unblock_mgmt_io(phba);
3108                         return 1;
3109                 }
3110                 spin_lock_irq(&phba->hbalock);
3111                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3112                         vpis_cleared = true;
3113                 spin_unlock_irq(&phba->hbalock);
3114
3115                 /* Reestablish the local initiator port.
3116                  * The offline process destroyed the previous lport.
3117                  */
3118                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3119                                 !phba->nvmet_support) {
3120                         error = lpfc_nvme_create_localport(phba->pport);
3121                         if (error)
3122                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3123                                         "6132 NVME restore reg failed "
3124                                         "on nvmei error x%x\n", error);
3125                 }
3126         } else {
3127                 lpfc_sli_queue_init(phba);
3128                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3129                         lpfc_unblock_mgmt_io(phba);
3130                         return 1;
3131                 }
3132         }
3133
3134         vports = lpfc_create_vport_work_array(phba);
3135         if (vports != NULL) {
3136                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3137                         struct Scsi_Host *shost;
3138                         shost = lpfc_shost_from_vport(vports[i]);
3139                         spin_lock_irq(shost->host_lock);
3140                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3141                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3142                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3143                         if (phba->sli_rev == LPFC_SLI_REV4) {
3144                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3145                                 if ((vpis_cleared) &&
3146                                     (vports[i]->port_type !=
3147                                         LPFC_PHYSICAL_PORT))
3148                                         vports[i]->vpi = 0;
3149                         }
3150                         spin_unlock_irq(shost->host_lock);
3151                 }
3152         }
3153         lpfc_destroy_vport_work_array(phba, vports);
3154
3155         lpfc_unblock_mgmt_io(phba);
3156         return 0;
3157 }
3158
3159 /**
3160  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3161  * @phba: pointer to lpfc hba data structure.
3162  *
3163  * This routine marks a HBA's management interface as not blocked. Once the
3164  * HBA's management interface is marked as not blocked, all the user space
3165  * access to the HBA, whether they are from sysfs interface or libdfc
3166  * interface will be allowed. The HBA is set to block the management interface
3167  * when the driver prepares the HBA interface for online or offline and then
3168  * set to unblock the management interface afterwards.
3169  **/
3170 void
3171 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3172 {
3173         unsigned long iflag;
3174
3175         spin_lock_irqsave(&phba->hbalock, iflag);
3176         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3177         spin_unlock_irqrestore(&phba->hbalock, iflag);
3178 }
3179
3180 /**
3181  * lpfc_offline_prep - Prepare a HBA to be brought offline
3182  * @phba: pointer to lpfc hba data structure.
3183  *
3184  * This routine is invoked to prepare a HBA to be brought offline. It performs
3185  * unregistration login to all the nodes on all vports and flushes the mailbox
3186  * queue to make it ready to be brought offline.
3187  **/
3188 void
3189 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3190 {
3191         struct lpfc_vport *vport = phba->pport;
3192         struct lpfc_nodelist  *ndlp, *next_ndlp;
3193         struct lpfc_vport **vports;
3194         struct Scsi_Host *shost;
3195         int i;
3196
3197         if (vport->fc_flag & FC_OFFLINE_MODE)
3198                 return;
3199
3200         lpfc_block_mgmt_io(phba, mbx_action);
3201
3202         lpfc_linkdown(phba);
3203
3204         /* Issue an unreg_login to all nodes on all vports */
3205         vports = lpfc_create_vport_work_array(phba);
3206         if (vports != NULL) {
3207                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3208                         if (vports[i]->load_flag & FC_UNLOADING)
3209                                 continue;
3210                         shost = lpfc_shost_from_vport(vports[i]);
3211                         spin_lock_irq(shost->host_lock);
3212                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3213                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3214                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3215                         spin_unlock_irq(shost->host_lock);
3216
3217                         shost = lpfc_shost_from_vport(vports[i]);
3218                         list_for_each_entry_safe(ndlp, next_ndlp,
3219                                                  &vports[i]->fc_nodes,
3220                                                  nlp_listp) {
3221                                 if (!NLP_CHK_NODE_ACT(ndlp))
3222                                         continue;
3223                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3224                                         continue;
3225                                 if (ndlp->nlp_type & NLP_FABRIC) {
3226                                         lpfc_disc_state_machine(vports[i], ndlp,
3227                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3228                                         lpfc_disc_state_machine(vports[i], ndlp,
3229                                                 NULL, NLP_EVT_DEVICE_RM);
3230                                 }
3231                                 spin_lock_irq(shost->host_lock);
3232                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3233                                 spin_unlock_irq(shost->host_lock);
3234                                 /*
3235                                  * Whenever an SLI4 port goes offline, free the
3236                                  * RPI. Get a new RPI when the adapter port
3237                                  * comes back online.
3238                                  */
3239                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3240                                         lpfc_printf_vlog(ndlp->vport,
3241                                                          KERN_INFO, LOG_NODE,
3242                                                          "0011 lpfc_offline: "
3243                                                          "ndlp:x%p did %x "
3244                                                          "usgmap:x%x rpi:%x\n",
3245                                                          ndlp, ndlp->nlp_DID,
3246                                                          ndlp->nlp_usg_map,
3247                                                          ndlp->nlp_rpi);
3248
3249                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3250                                 }
3251                                 lpfc_unreg_rpi(vports[i], ndlp);
3252                         }
3253                 }
3254         }
3255         lpfc_destroy_vport_work_array(phba, vports);
3256
3257         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3258
3259         if (phba->wq)
3260                 flush_workqueue(phba->wq);
3261 }
3262
3263 /**
3264  * lpfc_offline - Bring a HBA offline
3265  * @phba: pointer to lpfc hba data structure.
3266  *
3267  * This routine actually brings a HBA offline. It stops all the timers
3268  * associated with the HBA, brings down the SLI layer, and eventually
3269  * marks the HBA as in offline state for the upper layer protocol.
3270  **/
3271 void
3272 lpfc_offline(struct lpfc_hba *phba)
3273 {
3274         struct Scsi_Host  *shost;
3275         struct lpfc_vport **vports;
3276         int i;
3277
3278         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3279                 return;
3280
3281         /* stop port and all timers associated with this hba */
3282         lpfc_stop_port(phba);
3283
3284         /* Tear down the local and target port registrations.  The
3285          * nvme transports need to cleanup.
3286          */
3287         lpfc_nvmet_destroy_targetport(phba);
3288         lpfc_nvme_destroy_localport(phba->pport);
3289
3290         vports = lpfc_create_vport_work_array(phba);
3291         if (vports != NULL)
3292                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3293                         lpfc_stop_vport_timers(vports[i]);
3294         lpfc_destroy_vport_work_array(phba, vports);
3295         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3296                         "0460 Bring Adapter offline\n");
3297         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3298            now.  */
3299         lpfc_sli_hba_down(phba);
3300         spin_lock_irq(&phba->hbalock);
3301         phba->work_ha = 0;
3302         spin_unlock_irq(&phba->hbalock);
3303         vports = lpfc_create_vport_work_array(phba);
3304         if (vports != NULL)
3305                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3306                         shost = lpfc_shost_from_vport(vports[i]);
3307                         spin_lock_irq(shost->host_lock);
3308                         vports[i]->work_port_events = 0;
3309                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3310                         spin_unlock_irq(shost->host_lock);
3311                 }
3312         lpfc_destroy_vport_work_array(phba, vports);
3313 }
3314
3315 /**
3316  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3317  * @phba: pointer to lpfc hba data structure.
3318  *
3319  * This routine is to free all the SCSI buffers and IOCBs from the driver
3320  * list back to kernel. It is called from lpfc_pci_remove_one to free
3321  * the internal resources before the device is removed from the system.
3322  **/
3323 static void
3324 lpfc_scsi_free(struct lpfc_hba *phba)
3325 {
3326         struct lpfc_scsi_buf *sb, *sb_next;
3327
3328         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3329                 return;
3330
3331         spin_lock_irq(&phba->hbalock);
3332
3333         /* Release all the lpfc_scsi_bufs maintained by this host. */
3334
3335         spin_lock(&phba->scsi_buf_list_put_lock);
3336         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3337                                  list) {
3338                 list_del(&sb->list);
3339                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3340                               sb->dma_handle);
3341                 kfree(sb);
3342                 phba->total_scsi_bufs--;
3343         }
3344         spin_unlock(&phba->scsi_buf_list_put_lock);
3345
3346         spin_lock(&phba->scsi_buf_list_get_lock);
3347         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3348                                  list) {
3349                 list_del(&sb->list);
3350                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3351                               sb->dma_handle);
3352                 kfree(sb);
3353                 phba->total_scsi_bufs--;
3354         }
3355         spin_unlock(&phba->scsi_buf_list_get_lock);
3356         spin_unlock_irq(&phba->hbalock);
3357 }
3358 /**
3359  * lpfc_nvme_free - Free all the NVME buffers and IOCBs from driver lists
3360  * @phba: pointer to lpfc hba data structure.
3361  *
3362  * This routine is to free all the NVME buffers and IOCBs from the driver
3363  * list back to kernel. It is called from lpfc_pci_remove_one to free
3364  * the internal resources before the device is removed from the system.
3365  **/
3366 static void
3367 lpfc_nvme_free(struct lpfc_hba *phba)
3368 {
3369         struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next;
3370
3371         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
3372                 return;
3373
3374         spin_lock_irq(&phba->hbalock);
3375
3376         /* Release all the lpfc_nvme_bufs maintained by this host. */
3377         spin_lock(&phba->nvme_buf_list_put_lock);
3378         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3379                                  &phba->lpfc_nvme_buf_list_put, list) {
3380                 list_del(&lpfc_ncmd->list);
3381                 phba->put_nvme_bufs--;
3382                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
3383                               lpfc_ncmd->dma_handle);
3384                 kfree(lpfc_ncmd);
3385                 phba->total_nvme_bufs--;
3386         }
3387         spin_unlock(&phba->nvme_buf_list_put_lock);
3388
3389         spin_lock(&phba->nvme_buf_list_get_lock);
3390         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3391                                  &phba->lpfc_nvme_buf_list_get, list) {
3392                 list_del(&lpfc_ncmd->list);
3393                 phba->get_nvme_bufs--;
3394                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
3395                               lpfc_ncmd->dma_handle);
3396                 kfree(lpfc_ncmd);
3397                 phba->total_nvme_bufs--;
3398         }
3399         spin_unlock(&phba->nvme_buf_list_get_lock);
3400         spin_unlock_irq(&phba->hbalock);
3401 }
3402 /**
3403  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3404  * @phba: pointer to lpfc hba data structure.
3405  *
3406  * This routine first calculates the sizes of the current els and allocated
3407  * scsi sgl lists, and then goes through all sgls to updates the physical
3408  * XRIs assigned due to port function reset. During port initialization, the
3409  * current els and allocated scsi sgl lists are 0s.
3410  *
3411  * Return codes
3412  *   0 - successful (for now, it always returns 0)
3413  **/
3414 int
3415 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3416 {
3417         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3418         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3419         LIST_HEAD(els_sgl_list);
3420         int rc;
3421
3422         /*
3423          * update on pci function's els xri-sgl list
3424          */
3425         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3426
3427         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3428                 /* els xri-sgl expanded */
3429                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3430                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3431                                 "3157 ELS xri-sgl count increased from "
3432                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3433                                 els_xri_cnt);
3434                 /* allocate the additional els sgls */
3435                 for (i = 0; i < xri_cnt; i++) {
3436                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3437                                              GFP_KERNEL);
3438                         if (sglq_entry == NULL) {
3439                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3440                                                 "2562 Failure to allocate an "
3441                                                 "ELS sgl entry:%d\n", i);
3442                                 rc = -ENOMEM;
3443                                 goto out_free_mem;
3444                         }
3445                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3446                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3447                                                            &sglq_entry->phys);
3448                         if (sglq_entry->virt == NULL) {
3449                                 kfree(sglq_entry);
3450                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3451                                                 "2563 Failure to allocate an "
3452                                                 "ELS mbuf:%d\n", i);
3453                                 rc = -ENOMEM;
3454                                 goto out_free_mem;
3455                         }
3456                         sglq_entry->sgl = sglq_entry->virt;
3457                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3458                         sglq_entry->state = SGL_FREED;
3459                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3460                 }
3461                 spin_lock_irq(&phba->hbalock);
3462                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3463                 list_splice_init(&els_sgl_list,
3464                                  &phba->sli4_hba.lpfc_els_sgl_list);
3465                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3466                 spin_unlock_irq(&phba->hbalock);
3467         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3468                 /* els xri-sgl shrinked */
3469                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3470                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3471                                 "3158 ELS xri-sgl count decreased from "
3472                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3473                                 els_xri_cnt);
3474                 spin_lock_irq(&phba->hbalock);
3475                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3476                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3477                                  &els_sgl_list);
3478                 /* release extra els sgls from list */
3479                 for (i = 0; i < xri_cnt; i++) {
3480                         list_remove_head(&els_sgl_list,
3481                                          sglq_entry, struct lpfc_sglq, list);
3482                         if (sglq_entry) {
3483                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
3484                                                  sglq_entry->phys);
3485                                 kfree(sglq_entry);
3486                         }
3487                 }
3488                 list_splice_init(&els_sgl_list,
3489                                  &phba->sli4_hba.lpfc_els_sgl_list);
3490                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3491                 spin_unlock_irq(&phba->hbalock);
3492         } else
3493                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3494                                 "3163 ELS xri-sgl count unchanged: %d\n",
3495                                 els_xri_cnt);
3496         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3497
3498         /* update xris to els sgls on the list */
3499         sglq_entry = NULL;
3500         sglq_entry_next = NULL;
3501         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3502                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
3503                 lxri = lpfc_sli4_next_xritag(phba);
3504                 if (lxri == NO_XRI) {
3505                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3506                                         "2400 Failed to allocate xri for "
3507                                         "ELS sgl\n");
3508                         rc = -ENOMEM;
3509                         goto out_free_mem;
3510                 }
3511                 sglq_entry->sli4_lxritag = lxri;
3512                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3513         }
3514         return 0;
3515
3516 out_free_mem:
3517         lpfc_free_els_sgl_list(phba);
3518         return rc;
3519 }
3520
3521 /**
3522  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3523  * @phba: pointer to lpfc hba data structure.
3524  *
3525  * This routine first calculates the sizes of the current els and allocated
3526  * scsi sgl lists, and then goes through all sgls to updates the physical
3527  * XRIs assigned due to port function reset. During port initialization, the
3528  * current els and allocated scsi sgl lists are 0s.
3529  *
3530  * Return codes
3531  *   0 - successful (for now, it always returns 0)
3532  **/
3533 int
3534 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
3535 {
3536         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3537         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3538         uint16_t nvmet_xri_cnt;
3539         LIST_HEAD(nvmet_sgl_list);
3540         int rc;
3541
3542         /*
3543          * update on pci function's nvmet xri-sgl list
3544          */
3545         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3546
3547         /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
3548         nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3549         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
3550                 /* els xri-sgl expanded */
3551                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
3552                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3553                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
3554                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
3555                 /* allocate the additional nvmet sgls */
3556                 for (i = 0; i < xri_cnt; i++) {
3557                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3558                                              GFP_KERNEL);
3559                         if (sglq_entry == NULL) {
3560                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3561                                                 "6303 Failure to allocate an "
3562                                                 "NVMET sgl entry:%d\n", i);
3563                                 rc = -ENOMEM;
3564                                 goto out_free_mem;
3565                         }
3566                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
3567                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
3568                                                            &sglq_entry->phys);
3569                         if (sglq_entry->virt == NULL) {
3570                                 kfree(sglq_entry);
3571                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3572                                                 "6304 Failure to allocate an "
3573                                                 "NVMET buf:%d\n", i);
3574                                 rc = -ENOMEM;
3575                                 goto out_free_mem;
3576                         }
3577                         sglq_entry->sgl = sglq_entry->virt;
3578                         memset(sglq_entry->sgl, 0,
3579                                phba->cfg_sg_dma_buf_size);
3580                         sglq_entry->state = SGL_FREED;
3581                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
3582                 }
3583                 spin_lock_irq(&phba->hbalock);
3584                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3585                 list_splice_init(&nvmet_sgl_list,
3586                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3587                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3588                 spin_unlock_irq(&phba->hbalock);
3589         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
3590                 /* nvmet xri-sgl shrunk */
3591                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
3592                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3593                                 "6305 NVMET xri-sgl count decreased from "
3594                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
3595                                 nvmet_xri_cnt);
3596                 spin_lock_irq(&phba->hbalock);
3597                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3598                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
3599                                  &nvmet_sgl_list);
3600                 /* release extra nvmet sgls from list */
3601                 for (i = 0; i < xri_cnt; i++) {
3602                         list_remove_head(&nvmet_sgl_list,
3603                                          sglq_entry, struct lpfc_sglq, list);
3604                         if (sglq_entry) {
3605                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
3606                                                     sglq_entry->phys);
3607                                 kfree(sglq_entry);
3608                         }
3609                 }
3610                 list_splice_init(&nvmet_sgl_list,
3611                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3612                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3613                 spin_unlock_irq(&phba->hbalock);
3614         } else
3615                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3616                                 "6306 NVMET xri-sgl count unchanged: %d\n",
3617                                 nvmet_xri_cnt);
3618         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
3619
3620         /* update xris to nvmet sgls on the list */
3621         sglq_entry = NULL;
3622         sglq_entry_next = NULL;
3623         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3624                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
3625                 lxri = lpfc_sli4_next_xritag(phba);
3626                 if (lxri == NO_XRI) {
3627                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3628                                         "6307 Failed to allocate xri for "
3629                                         "NVMET sgl\n");
3630                         rc = -ENOMEM;
3631                         goto out_free_mem;
3632                 }
3633                 sglq_entry->sli4_lxritag = lxri;
3634                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3635         }
3636         return 0;
3637
3638 out_free_mem:
3639         lpfc_free_nvmet_sgl_list(phba);
3640         return rc;
3641 }
3642
3643 /**
3644  * lpfc_sli4_scsi_sgl_update - update xri-sgl sizing and mapping
3645  * @phba: pointer to lpfc hba data structure.
3646  *
3647  * This routine first calculates the sizes of the current els and allocated
3648  * scsi sgl lists, and then goes through all sgls to updates the physical
3649  * XRIs assigned due to port function reset. During port initialization, the
3650  * current els and allocated scsi sgl lists are 0s.
3651  *
3652  * Return codes
3653  *   0 - successful (for now, it always returns 0)
3654  **/
3655 int
3656 lpfc_sli4_scsi_sgl_update(struct lpfc_hba *phba)
3657 {
3658         struct lpfc_scsi_buf *psb, *psb_next;
3659         uint16_t i, lxri, els_xri_cnt, scsi_xri_cnt;
3660         LIST_HEAD(scsi_sgl_list);
3661         int rc;
3662
3663         /*
3664          * update on pci function's els xri-sgl list
3665          */
3666         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3667         phba->total_scsi_bufs = 0;
3668
3669         /*
3670          * update on pci function's allocated scsi xri-sgl list
3671          */
3672         /* maximum number of xris available for scsi buffers */
3673         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3674                                       els_xri_cnt;
3675
3676         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3677                 return 0;
3678
3679         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3680                 phba->sli4_hba.scsi_xri_max =  /* Split them up */
3681                         (phba->sli4_hba.scsi_xri_max *
3682                          phba->cfg_xri_split) / 100;
3683
3684         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3685         spin_lock(&phba->scsi_buf_list_put_lock);
3686         list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3687         list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3688         spin_unlock(&phba->scsi_buf_list_put_lock);
3689         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3690
3691         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3692                         "6060 Current allocated SCSI xri-sgl count:%d, "
3693                         "maximum  SCSI xri count:%d (split:%d)\n",
3694                         phba->sli4_hba.scsi_xri_cnt,
3695                         phba->sli4_hba.scsi_xri_max, phba->cfg_xri_split);
3696
3697         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3698                 /* max scsi xri shrinked below the allocated scsi buffers */
3699                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3700                                         phba->sli4_hba.scsi_xri_max;
3701                 /* release the extra allocated scsi buffers */
3702                 for (i = 0; i < scsi_xri_cnt; i++) {
3703                         list_remove_head(&scsi_sgl_list, psb,
3704                                          struct lpfc_scsi_buf, list);
3705                         if (psb) {
3706                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3707                                               psb->data, psb->dma_handle);
3708                                 kfree(psb);
3709                         }
3710                 }
3711                 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3712                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3713                 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3714         }
3715
3716         /* update xris associated to remaining allocated scsi buffers */
3717         psb = NULL;
3718         psb_next = NULL;
3719         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3720                 lxri = lpfc_sli4_next_xritag(phba);
3721                 if (lxri == NO_XRI) {
3722                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3723                                         "2560 Failed to allocate xri for "
3724                                         "scsi buffer\n");
3725                         rc = -ENOMEM;
3726                         goto out_free_mem;
3727                 }
3728                 psb->cur_iocbq.sli4_lxritag = lxri;
3729                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3730         }
3731         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3732         spin_lock(&phba->scsi_buf_list_put_lock);
3733         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3734         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3735         spin_unlock(&phba->scsi_buf_list_put_lock);
3736         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3737         return 0;
3738
3739 out_free_mem:
3740         lpfc_scsi_free(phba);
3741         return rc;
3742 }
3743
3744 static uint64_t
3745 lpfc_get_wwpn(struct lpfc_hba *phba)
3746 {
3747         uint64_t wwn;
3748         int rc;
3749         LPFC_MBOXQ_t *mboxq;
3750         MAILBOX_t *mb;
3751
3752         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
3753                                                 GFP_KERNEL);
3754         if (!mboxq)
3755                 return (uint64_t)-1;
3756
3757         /* First get WWN of HBA instance */
3758         lpfc_read_nv(phba, mboxq);
3759         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
3760         if (rc != MBX_SUCCESS) {
3761                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3762                                 "6019 Mailbox failed , mbxCmd x%x "
3763                                 "READ_NV, mbxStatus x%x\n",
3764                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
3765                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
3766                 mempool_free(mboxq, phba->mbox_mem_pool);
3767                 return (uint64_t) -1;
3768         }
3769         mb = &mboxq->u.mb;
3770         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
3771         /* wwn is WWPN of HBA instance */
3772         mempool_free(mboxq, phba->mbox_mem_pool);
3773         if (phba->sli_rev == LPFC_SLI_REV4)
3774                 return be64_to_cpu(wwn);
3775         else
3776                 return rol64(wwn, 32);
3777 }
3778
3779 /**
3780  * lpfc_sli4_nvme_sgl_update - update xri-sgl sizing and mapping
3781  * @phba: pointer to lpfc hba data structure.
3782  *
3783  * This routine first calculates the sizes of the current els and allocated
3784  * scsi sgl lists, and then goes through all sgls to updates the physical
3785  * XRIs assigned due to port function reset. During port initialization, the
3786  * current els and allocated scsi sgl lists are 0s.
3787  *
3788  * Return codes
3789  *   0 - successful (for now, it always returns 0)
3790  **/
3791 int
3792 lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba)
3793 {
3794         struct lpfc_nvme_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
3795         uint16_t i, lxri, els_xri_cnt;
3796         uint16_t nvme_xri_cnt, nvme_xri_max;
3797         LIST_HEAD(nvme_sgl_list);
3798         int rc, cnt;
3799
3800         phba->total_nvme_bufs = 0;
3801         phba->get_nvme_bufs = 0;
3802         phba->put_nvme_bufs = 0;
3803
3804         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
3805                 return 0;
3806         /*
3807          * update on pci function's allocated nvme xri-sgl list
3808          */
3809
3810         /* maximum number of xris available for nvme buffers */
3811         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3812         nvme_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3813         phba->sli4_hba.nvme_xri_max = nvme_xri_max;
3814         phba->sli4_hba.nvme_xri_max -= phba->sli4_hba.scsi_xri_max;
3815
3816         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3817                         "6074 Current allocated NVME xri-sgl count:%d, "
3818                         "maximum  NVME xri count:%d\n",
3819                         phba->sli4_hba.nvme_xri_cnt,
3820                         phba->sli4_hba.nvme_xri_max);
3821
3822         spin_lock_irq(&phba->nvme_buf_list_get_lock);
3823         spin_lock(&phba->nvme_buf_list_put_lock);
3824         list_splice_init(&phba->lpfc_nvme_buf_list_get, &nvme_sgl_list);
3825         list_splice(&phba->lpfc_nvme_buf_list_put, &nvme_sgl_list);
3826         cnt = phba->get_nvme_bufs + phba->put_nvme_bufs;
3827         phba->get_nvme_bufs = 0;
3828         phba->put_nvme_bufs = 0;
3829         spin_unlock(&phba->nvme_buf_list_put_lock);
3830         spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3831
3832         if (phba->sli4_hba.nvme_xri_cnt > phba->sli4_hba.nvme_xri_max) {
3833                 /* max nvme xri shrunk below the allocated nvme buffers */
3834                 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3835                 nvme_xri_cnt = phba->sli4_hba.nvme_xri_cnt -
3836                                         phba->sli4_hba.nvme_xri_max;
3837                 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3838                 /* release the extra allocated nvme buffers */
3839                 for (i = 0; i < nvme_xri_cnt; i++) {
3840                         list_remove_head(&nvme_sgl_list, lpfc_ncmd,
3841                                          struct lpfc_nvme_buf, list);
3842                         if (lpfc_ncmd) {
3843                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3844                                               lpfc_ncmd->data,
3845                                               lpfc_ncmd->dma_handle);
3846                                 kfree(lpfc_ncmd);
3847                         }
3848                 }
3849                 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3850                 phba->sli4_hba.nvme_xri_cnt -= nvme_xri_cnt;
3851                 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3852         }
3853
3854         /* update xris associated to remaining allocated nvme buffers */
3855         lpfc_ncmd = NULL;
3856         lpfc_ncmd_next = NULL;
3857         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3858                                  &nvme_sgl_list, list) {
3859                 lxri = lpfc_sli4_next_xritag(phba);
3860                 if (lxri == NO_XRI) {
3861                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3862                                         "6075 Failed to allocate xri for "
3863                                         "nvme buffer\n");
3864                         rc = -ENOMEM;
3865                         goto out_free_mem;
3866                 }
3867                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
3868                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3869         }
3870         spin_lock_irq(&phba->nvme_buf_list_get_lock);
3871         spin_lock(&phba->nvme_buf_list_put_lock);
3872         list_splice_init(&nvme_sgl_list, &phba->lpfc_nvme_buf_list_get);
3873         phba->get_nvme_bufs = cnt;
3874         INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
3875         spin_unlock(&phba->nvme_buf_list_put_lock);
3876         spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3877         return 0;
3878
3879 out_free_mem:
3880         lpfc_nvme_free(phba);
3881         return rc;
3882 }
3883
3884 /**
3885  * lpfc_create_port - Create an FC port
3886  * @phba: pointer to lpfc hba data structure.
3887  * @instance: a unique integer ID to this FC port.
3888  * @dev: pointer to the device data structure.
3889  *
3890  * This routine creates a FC port for the upper layer protocol. The FC port
3891  * can be created on top of either a physical port or a virtual port provided
3892  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3893  * and associates the FC port created before adding the shost into the SCSI
3894  * layer.
3895  *
3896  * Return codes
3897  *   @vport - pointer to the virtual N_Port data structure.
3898  *   NULL - port create failed.
3899  **/
3900 struct lpfc_vport *
3901 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3902 {
3903         struct lpfc_vport *vport;
3904         struct Scsi_Host  *shost = NULL;
3905         int error = 0;
3906         int i;
3907         uint64_t wwn;
3908         bool use_no_reset_hba = false;
3909         int rc;
3910
3911         if (lpfc_no_hba_reset_cnt) {
3912                 if (phba->sli_rev < LPFC_SLI_REV4 &&
3913                     dev == &phba->pcidev->dev) {
3914                         /* Reset the port first */
3915                         lpfc_sli_brdrestart(phba);
3916                         rc = lpfc_sli_chipset_init(phba);
3917                         if (rc)
3918                                 return NULL;
3919                 }
3920                 wwn = lpfc_get_wwpn(phba);
3921         }
3922
3923         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
3924                 if (wwn == lpfc_no_hba_reset[i]) {
3925                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3926                                         "6020 Setting use_no_reset port=%llx\n",
3927                                         wwn);
3928                         use_no_reset_hba = true;
3929                         break;
3930                 }
3931         }
3932
3933         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
3934                 if (dev != &phba->pcidev->dev) {
3935                         shost = scsi_host_alloc(&lpfc_vport_template,
3936                                                 sizeof(struct lpfc_vport));
3937                 } else {
3938                         if (!use_no_reset_hba)
3939                                 shost = scsi_host_alloc(&lpfc_template,
3940                                                 sizeof(struct lpfc_vport));
3941                         else
3942                                 shost = scsi_host_alloc(&lpfc_template_no_hr,
3943                                                 sizeof(struct lpfc_vport));
3944                 }
3945         } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
3946                 shost = scsi_host_alloc(&lpfc_template_nvme,
3947                                         sizeof(struct lpfc_vport));
3948         }
3949         if (!shost)
3950                 goto out;
3951
3952         vport = (struct lpfc_vport *) shost->hostdata;
3953         vport->phba = phba;
3954         vport->load_flag |= FC_LOADING;
3955         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3956         vport->fc_rscn_flush = 0;
3957         lpfc_get_vport_cfgparam(vport);
3958
3959         shost->unique_id = instance;
3960         shost->max_id = LPFC_MAX_TARGET;
3961         shost->max_lun = vport->cfg_max_luns;
3962         shost->this_id = -1;
3963         shost->max_cmd_len = 16;
3964         shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3965         if (phba->sli_rev == LPFC_SLI_REV4) {
3966                 shost->dma_boundary =
3967                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3968                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3969         }
3970
3971         /*
3972          * Set initial can_queue value since 0 is no longer supported and
3973          * scsi_add_host will fail. This will be adjusted later based on the
3974          * max xri value determined in hba setup.
3975          */
3976         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3977         if (dev != &phba->pcidev->dev) {
3978                 shost->transportt = lpfc_vport_transport_template;
3979                 vport->port_type = LPFC_NPIV_PORT;
3980         } else {
3981                 shost->transportt = lpfc_transport_template;
3982                 vport->port_type = LPFC_PHYSICAL_PORT;
3983         }
3984
3985         /* Initialize all internally managed lists. */
3986         INIT_LIST_HEAD(&vport->fc_nodes);
3987         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3988         spin_lock_init(&vport->work_port_lock);
3989
3990         timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
3991
3992         timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
3993
3994         timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
3995
3996         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3997         if (error)
3998                 goto out_put_shost;
3999
4000         spin_lock_irq(&phba->hbalock);
4001         list_add_tail(&vport->listentry, &phba->port_list);
4002         spin_unlock_irq(&phba->hbalock);
4003         return vport;
4004
4005 out_put_shost:
4006         scsi_host_put(shost);
4007 out:
4008         return NULL;
4009 }
4010
4011 /**
4012  * destroy_port -  destroy an FC port
4013  * @vport: pointer to an lpfc virtual N_Port data structure.
4014  *
4015  * This routine destroys a FC port from the upper layer protocol. All the
4016  * resources associated with the port are released.
4017  **/
4018 void
4019 destroy_port(struct lpfc_vport *vport)
4020 {
4021         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4022         struct lpfc_hba  *phba = vport->phba;
4023
4024         lpfc_debugfs_terminate(vport);
4025         fc_remove_host(shost);
4026         scsi_remove_host(shost);
4027
4028         spin_lock_irq(&phba->hbalock);
4029         list_del_init(&vport->listentry);
4030         spin_unlock_irq(&phba->hbalock);
4031
4032         lpfc_cleanup(vport);
4033         return;
4034 }
4035
4036 /**
4037  * lpfc_get_instance - Get a unique integer ID
4038  *
4039  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4040  * uses the kernel idr facility to perform the task.
4041  *
4042  * Return codes:
4043  *   instance - a unique integer ID allocated as the new instance.
4044  *   -1 - lpfc get instance failed.
4045  **/
4046 int
4047 lpfc_get_instance(void)
4048 {
4049         int ret;
4050
4051         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4052         return ret < 0 ? -1 : ret;
4053 }
4054
4055 /**
4056  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4057  * @shost: pointer to SCSI host data structure.
4058  * @time: elapsed time of the scan in jiffies.
4059  *
4060  * This routine is called by the SCSI layer with a SCSI host to determine
4061  * whether the scan host is finished.
4062  *
4063  * Note: there is no scan_start function as adapter initialization will have
4064  * asynchronously kicked off the link initialization.
4065  *
4066  * Return codes
4067  *   0 - SCSI host scan is not over yet.
4068  *   1 - SCSI host scan is over.
4069  **/
4070 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4071 {
4072         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4073         struct lpfc_hba   *phba = vport->phba;
4074         int stat = 0;
4075
4076         spin_lock_irq(shost->host_lock);
4077
4078         if (vport->load_flag & FC_UNLOADING) {
4079                 stat = 1;
4080                 goto finished;
4081         }
4082         if (time >= msecs_to_jiffies(30 * 1000)) {
4083                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4084                                 "0461 Scanning longer than 30 "
4085                                 "seconds.  Continuing initialization\n");
4086                 stat = 1;
4087                 goto finished;
4088         }
4089         if (time >= msecs_to_jiffies(15 * 1000) &&
4090             phba->link_state <= LPFC_LINK_DOWN) {
4091                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4092                                 "0465 Link down longer than 15 "
4093                                 "seconds.  Continuing initialization\n");
4094                 stat = 1;
4095                 goto finished;
4096         }
4097
4098         if (vport->port_state != LPFC_VPORT_READY)
4099                 goto finished;
4100         if (vport->num_disc_nodes || vport->fc_prli_sent)
4101                 goto finished;
4102         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4103                 goto finished;
4104         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4105                 goto finished;
4106
4107         stat = 1;
4108
4109 finished:
4110         spin_unlock_irq(shost->host_lock);
4111         return stat;
4112 }
4113
4114 /**
4115  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4116  * @shost: pointer to SCSI host data structure.
4117  *
4118  * This routine initializes a given SCSI host attributes on a FC port. The
4119  * SCSI host can be either on top of a physical port or a virtual port.
4120  **/
4121 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4122 {
4123         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4124         struct lpfc_hba   *phba = vport->phba;
4125         /*
4126          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
4127          */
4128
4129         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4130         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4131         fc_host_supported_classes(shost) = FC_COS_CLASS3;
4132
4133         memset(fc_host_supported_fc4s(shost), 0,
4134                sizeof(fc_host_supported_fc4s(shost)));
4135         fc_host_supported_fc4s(shost)[2] = 1;
4136         fc_host_supported_fc4s(shost)[7] = 1;
4137
4138         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4139                                  sizeof fc_host_symbolic_name(shost));
4140
4141         fc_host_supported_speeds(shost) = 0;
4142         if (phba->lmt & LMT_64Gb)
4143                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4144         if (phba->lmt & LMT_32Gb)
4145                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4146         if (phba->lmt & LMT_16Gb)
4147                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4148         if (phba->lmt & LMT_10Gb)
4149                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4150         if (phba->lmt & LMT_8Gb)
4151                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4152         if (phba->lmt & LMT_4Gb)
4153                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4154         if (phba->lmt & LMT_2Gb)
4155                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4156         if (phba->lmt & LMT_1Gb)
4157                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4158
4159         fc_host_maxframe_size(shost) =
4160                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4161                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4162
4163         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4164
4165         /* This value is also unchanging */
4166         memset(fc_host_active_fc4s(shost), 0,
4167                sizeof(fc_host_active_fc4s(shost)));
4168         fc_host_active_fc4s(shost)[2] = 1;
4169         fc_host_active_fc4s(shost)[7] = 1;
4170
4171         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4172         spin_lock_irq(shost->host_lock);
4173         vport->load_flag &= ~FC_LOADING;
4174         spin_unlock_irq(shost->host_lock);
4175 }
4176
4177 /**
4178  * lpfc_stop_port_s3 - Stop SLI3 device port
4179  * @phba: pointer to lpfc hba data structure.
4180  *
4181  * This routine is invoked to stop an SLI3 device port, it stops the device
4182  * from generating interrupts and stops the device driver's timers for the
4183  * device.
4184  **/
4185 static void
4186 lpfc_stop_port_s3(struct lpfc_hba *phba)
4187 {
4188         /* Clear all interrupt enable conditions */
4189         writel(0, phba->HCregaddr);
4190         readl(phba->HCregaddr); /* flush */
4191         /* Clear all pending interrupts */
4192         writel(0xffffffff, phba->HAregaddr);
4193         readl(phba->HAregaddr); /* flush */
4194
4195         /* Reset some HBA SLI setup states */
4196         lpfc_stop_hba_timers(phba);
4197         phba->pport->work_port_events = 0;
4198 }
4199
4200 /**
4201  * lpfc_stop_port_s4 - Stop SLI4 device port
4202  * @phba: pointer to lpfc hba data structure.
4203  *
4204  * This routine is invoked to stop an SLI4 device port, it stops the device
4205  * from generating interrupts and stops the device driver's timers for the
4206  * device.
4207  **/
4208 static void
4209 lpfc_stop_port_s4(struct lpfc_hba *phba)
4210 {
4211         /* Reset some HBA SLI4 setup states */
4212         lpfc_stop_hba_timers(phba);
4213         phba->pport->work_port_events = 0;
4214         phba->sli4_hba.intr_enable = 0;
4215 }
4216
4217 /**
4218  * lpfc_stop_port - Wrapper function for stopping hba port
4219  * @phba: Pointer to HBA context object.
4220  *
4221  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4222  * the API jump table function pointer from the lpfc_hba struct.
4223  **/
4224 void
4225 lpfc_stop_port(struct lpfc_hba *phba)
4226 {
4227         phba->lpfc_stop_port(phba);
4228
4229         if (phba->wq)
4230                 flush_workqueue(phba->wq);
4231 }
4232
4233 /**
4234  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4235  * @phba: Pointer to hba for which this call is being executed.
4236  *
4237  * This routine starts the timer waiting for the FCF rediscovery to complete.
4238  **/
4239 void
4240 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4241 {
4242         unsigned long fcf_redisc_wait_tmo =
4243                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4244         /* Start fcf rediscovery wait period timer */
4245         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4246         spin_lock_irq(&phba->hbalock);
4247         /* Allow action to new fcf asynchronous event */
4248         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4249         /* Mark the FCF rediscovery pending state */
4250         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4251         spin_unlock_irq(&phba->hbalock);
4252 }
4253
4254 /**
4255  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4256  * @ptr: Map to lpfc_hba data structure pointer.
4257  *
4258  * This routine is invoked when waiting for FCF table rediscover has been
4259  * timed out. If new FCF record(s) has (have) been discovered during the
4260  * wait period, a new FCF event shall be added to the FCOE async event
4261  * list, and then worker thread shall be waked up for processing from the
4262  * worker thread context.
4263  **/
4264 static void
4265 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
4266 {
4267         struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
4268
4269         /* Don't send FCF rediscovery event if timer cancelled */
4270         spin_lock_irq(&phba->hbalock);
4271         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4272                 spin_unlock_irq(&phba->hbalock);
4273                 return;
4274         }
4275         /* Clear FCF rediscovery timer pending flag */
4276         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4277         /* FCF rediscovery event to worker thread */
4278         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4279         spin_unlock_irq(&phba->hbalock);
4280         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4281                         "2776 FCF rediscover quiescent timer expired\n");
4282         /* wake up worker thread */
4283         lpfc_worker_wake_up(phba);
4284 }
4285
4286 /**
4287  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4288  * @phba: pointer to lpfc hba data structure.
4289  * @acqe_link: pointer to the async link completion queue entry.
4290  *
4291  * This routine is to parse the SLI4 link-attention link fault code.
4292  **/
4293 static void
4294 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4295                            struct lpfc_acqe_link *acqe_link)
4296 {
4297         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4298         case LPFC_ASYNC_LINK_FAULT_NONE:
4299         case LPFC_ASYNC_LINK_FAULT_LOCAL:
4300         case LPFC_ASYNC_LINK_FAULT_REMOTE:
4301         case LPFC_ASYNC_LINK_FAULT_LR_LRR:
4302                 break;
4303         default:
4304                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4305                                 "0398 Unknown link fault code: x%x\n",
4306                                 bf_get(lpfc_acqe_link_fault, acqe_link));
4307                 break;
4308         }
4309 }
4310
4311 /**
4312  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4313  * @phba: pointer to lpfc hba data structure.
4314  * @acqe_link: pointer to the async link completion queue entry.
4315  *
4316  * This routine is to parse the SLI4 link attention type and translate it
4317  * into the base driver's link attention type coding.
4318  *
4319  * Return: Link attention type in terms of base driver's coding.
4320  **/
4321 static uint8_t
4322 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4323                           struct lpfc_acqe_link *acqe_link)
4324 {
4325         uint8_t att_type;
4326
4327         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4328         case LPFC_ASYNC_LINK_STATUS_DOWN:
4329         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4330                 att_type = LPFC_ATT_LINK_DOWN;
4331                 break;
4332         case LPFC_ASYNC_LINK_STATUS_UP:
4333                 /* Ignore physical link up events - wait for logical link up */
4334                 att_type = LPFC_ATT_RESERVED;
4335                 break;
4336         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4337                 att_type = LPFC_ATT_LINK_UP;
4338                 break;
4339         default:
4340                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4341                                 "0399 Invalid link attention type: x%x\n",
4342                                 bf_get(lpfc_acqe_link_status, acqe_link));
4343                 att_type = LPFC_ATT_RESERVED;
4344                 break;
4345         }
4346         return att_type;
4347 }
4348
4349 /**
4350  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4351  * @phba: pointer to lpfc hba data structure.
4352  *
4353  * This routine is to get an SLI3 FC port's link speed in Mbps.
4354  *
4355  * Return: link speed in terms of Mbps.
4356  **/
4357 uint32_t
4358 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4359 {
4360         uint32_t link_speed;
4361
4362         if (!lpfc_is_link_up(phba))
4363                 return 0;
4364
4365         if (phba->sli_rev <= LPFC_SLI_REV3) {
4366                 switch (phba->fc_linkspeed) {
4367                 case LPFC_LINK_SPEED_1GHZ:
4368                         link_speed = 1000;
4369                         break;
4370                 case LPFC_LINK_SPEED_2GHZ:
4371                         link_speed = 2000;
4372                         break;
4373                 case LPFC_LINK_SPEED_4GHZ:
4374                         link_speed = 4000;
4375                         break;
4376                 case LPFC_LINK_SPEED_8GHZ:
4377                         link_speed = 8000;
4378                         break;
4379                 case LPFC_LINK_SPEED_10GHZ:
4380                         link_speed = 10000;
4381                         break;
4382                 case LPFC_LINK_SPEED_16GHZ:
4383                         link_speed = 16000;
4384                         break;
4385                 default:
4386                         link_speed = 0;
4387                 }
4388         } else {
4389                 if (phba->sli4_hba.link_state.logical_speed)
4390                         link_speed =
4391                               phba->sli4_hba.link_state.logical_speed;
4392                 else
4393                         link_speed = phba->sli4_hba.link_state.speed;
4394         }
4395         return link_speed;
4396 }
4397
4398 /**
4399  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4400  * @phba: pointer to lpfc hba data structure.
4401  * @evt_code: asynchronous event code.
4402  * @speed_code: asynchronous event link speed code.
4403  *
4404  * This routine is to parse the giving SLI4 async event link speed code into
4405  * value of Mbps for the link speed.
4406  *
4407  * Return: link speed in terms of Mbps.
4408  **/
4409 static uint32_t
4410 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4411                            uint8_t speed_code)
4412 {
4413         uint32_t port_speed;
4414
4415         switch (evt_code) {
4416         case LPFC_TRAILER_CODE_LINK:
4417                 switch (speed_code) {
4418                 case LPFC_ASYNC_LINK_SPEED_ZERO:
4419                         port_speed = 0;
4420                         break;
4421                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
4422                         port_speed = 10;
4423                         break;
4424                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
4425                         port_speed = 100;
4426                         break;
4427                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
4428                         port_speed = 1000;
4429                         break;
4430                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
4431                         port_speed = 10000;
4432                         break;
4433                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
4434                         port_speed = 20000;
4435                         break;
4436                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
4437                         port_speed = 25000;
4438                         break;
4439                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
4440                         port_speed = 40000;
4441                         break;
4442                 default:
4443                         port_speed = 0;
4444                 }
4445                 break;
4446         case LPFC_TRAILER_CODE_FC:
4447                 switch (speed_code) {
4448                 case LPFC_FC_LA_SPEED_UNKNOWN:
4449                         port_speed = 0;
4450                         break;
4451                 case LPFC_FC_LA_SPEED_1G:
4452                         port_speed = 1000;
4453                         break;
4454                 case LPFC_FC_LA_SPEED_2G:
4455                         port_speed = 2000;
4456                         break;
4457                 case LPFC_FC_LA_SPEED_4G:
4458                         port_speed = 4000;
4459                         break;
4460                 case LPFC_FC_LA_SPEED_8G:
4461                         port_speed = 8000;
4462                         break;
4463                 case LPFC_FC_LA_SPEED_10G:
4464                         port_speed = 10000;
4465                         break;
4466                 case LPFC_FC_LA_SPEED_16G:
4467                         port_speed = 16000;
4468                         break;
4469                 case LPFC_FC_LA_SPEED_32G:
4470                         port_speed = 32000;
4471                         break;
4472                 case LPFC_FC_LA_SPEED_64G:
4473                         port_speed = 64000;
4474                         break;
4475                 default:
4476                         port_speed = 0;
4477                 }
4478                 break;
4479         default:
4480                 port_speed = 0;
4481         }
4482         return port_speed;
4483 }
4484
4485 /**
4486  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4487  * @phba: pointer to lpfc hba data structure.
4488  * @acqe_link: pointer to the async link completion queue entry.
4489  *
4490  * This routine is to handle the SLI4 asynchronous FCoE link event.
4491  **/
4492 static void
4493 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4494                          struct lpfc_acqe_link *acqe_link)
4495 {
4496         struct lpfc_dmabuf *mp;
4497         LPFC_MBOXQ_t *pmb;
4498         MAILBOX_t *mb;
4499         struct lpfc_mbx_read_top *la;
4500         uint8_t att_type;
4501         int rc;
4502
4503         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4504         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4505                 return;
4506         phba->fcoe_eventtag = acqe_link->event_tag;
4507         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4508         if (!pmb) {
4509                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4510                                 "0395 The mboxq allocation failed\n");
4511                 return;
4512         }
4513         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4514         if (!mp) {
4515                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4516                                 "0396 The lpfc_dmabuf allocation failed\n");
4517                 goto out_free_pmb;
4518         }
4519         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4520         if (!mp->virt) {
4521                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4522                                 "0397 The mbuf allocation failed\n");
4523                 goto out_free_dmabuf;
4524         }
4525
4526         /* Cleanup any outstanding ELS commands */
4527         lpfc_els_flush_all_cmd(phba);
4528
4529         /* Block ELS IOCBs until we have done process link event */
4530         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4531
4532         /* Update link event statistics */
4533         phba->sli.slistat.link_event++;
4534
4535         /* Create lpfc_handle_latt mailbox command from link ACQE */
4536         lpfc_read_topology(phba, pmb, mp);
4537         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4538         pmb->vport = phba->pport;
4539
4540         /* Keep the link status for extra SLI4 state machine reference */
4541         phba->sli4_hba.link_state.speed =
4542                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
4543                                 bf_get(lpfc_acqe_link_speed, acqe_link));
4544         phba->sli4_hba.link_state.duplex =
4545                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
4546         phba->sli4_hba.link_state.status =
4547                                 bf_get(lpfc_acqe_link_status, acqe_link);
4548         phba->sli4_hba.link_state.type =
4549                                 bf_get(lpfc_acqe_link_type, acqe_link);
4550         phba->sli4_hba.link_state.number =
4551                                 bf_get(lpfc_acqe_link_number, acqe_link);
4552         phba->sli4_hba.link_state.fault =
4553                                 bf_get(lpfc_acqe_link_fault, acqe_link);
4554         phba->sli4_hba.link_state.logical_speed =
4555                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
4556
4557         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4558                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
4559                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
4560                         "Logical speed:%dMbps Fault:%d\n",
4561                         phba->sli4_hba.link_state.speed,
4562                         phba->sli4_hba.link_state.topology,
4563                         phba->sli4_hba.link_state.status,
4564                         phba->sli4_hba.link_state.type,
4565                         phba->sli4_hba.link_state.number,
4566                         phba->sli4_hba.link_state.logical_speed,
4567                         phba->sli4_hba.link_state.fault);
4568         /*
4569          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
4570          * topology info. Note: Optional for non FC-AL ports.
4571          */
4572         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
4573                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4574                 if (rc == MBX_NOT_FINISHED)
4575                         goto out_free_dmabuf;
4576                 return;
4577         }
4578         /*
4579          * For FCoE Mode: fill in all the topology information we need and call
4580          * the READ_TOPOLOGY completion routine to continue without actually
4581          * sending the READ_TOPOLOGY mailbox command to the port.
4582          */
4583         /* Initialize completion status */
4584         mb = &pmb->u.mb;
4585         mb->mbxStatus = MBX_SUCCESS;
4586
4587         /* Parse port fault information field */
4588         lpfc_sli4_parse_latt_fault(phba, acqe_link);
4589
4590         /* Parse and translate link attention fields */
4591         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4592         la->eventTag = acqe_link->event_tag;
4593         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4594         bf_set(lpfc_mbx_read_top_link_spd, la,
4595                (bf_get(lpfc_acqe_link_speed, acqe_link)));
4596
4597         /* Fake the the following irrelvant fields */
4598         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4599         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4600         bf_set(lpfc_mbx_read_top_il, la, 0);
4601         bf_set(lpfc_mbx_read_top_pb, la, 0);
4602         bf_set(lpfc_mbx_read_top_fa, la, 0);
4603         bf_set(lpfc_mbx_read_top_mm, la, 0);
4604
4605         /* Invoke the lpfc_handle_latt mailbox command callback function */
4606         lpfc_mbx_cmpl_read_topology(phba, pmb);
4607
4608         return;
4609
4610 out_free_dmabuf:
4611         kfree(mp);
4612 out_free_pmb:
4613         mempool_free(pmb, phba->mbox_mem_pool);
4614 }
4615
4616 /**
4617  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
4618  * @phba: pointer to lpfc hba data structure.
4619  * @acqe_fc: pointer to the async fc completion queue entry.
4620  *
4621  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
4622  * that the event was received and then issue a read_topology mailbox command so
4623  * that the rest of the driver will treat it the same as SLI3.
4624  **/
4625 static void
4626 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
4627 {
4628         struct lpfc_dmabuf *mp;
4629         LPFC_MBOXQ_t *pmb;
4630         MAILBOX_t *mb;
4631         struct lpfc_mbx_read_top *la;
4632         int rc;
4633
4634         if (bf_get(lpfc_trailer_type, acqe_fc) !=
4635             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
4636                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4637                                 "2895 Non FC link Event detected.(%d)\n",
4638                                 bf_get(lpfc_trailer_type, acqe_fc));
4639                 return;
4640         }
4641         /* Keep the link status for extra SLI4 state machine reference */
4642         phba->sli4_hba.link_state.speed =
4643                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4644                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4645         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4646         phba->sli4_hba.link_state.topology =
4647                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4648         phba->sli4_hba.link_state.status =
4649                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4650         phba->sli4_hba.link_state.type =
4651                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4652         phba->sli4_hba.link_state.number =
4653                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4654         phba->sli4_hba.link_state.fault =
4655                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
4656         phba->sli4_hba.link_state.logical_speed =
4657                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4658         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4659                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4660                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4661                         "%dMbps Fault:%d\n",
4662                         phba->sli4_hba.link_state.speed,
4663                         phba->sli4_hba.link_state.topology,
4664                         phba->sli4_hba.link_state.status,
4665                         phba->sli4_hba.link_state.type,
4666                         phba->sli4_hba.link_state.number,
4667                         phba->sli4_hba.link_state.logical_speed,
4668                         phba->sli4_hba.link_state.fault);
4669         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4670         if (!pmb) {
4671                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4672                                 "2897 The mboxq allocation failed\n");
4673                 return;
4674         }
4675         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4676         if (!mp) {
4677                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4678                                 "2898 The lpfc_dmabuf allocation failed\n");
4679                 goto out_free_pmb;
4680         }
4681         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4682         if (!mp->virt) {
4683                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4684                                 "2899 The mbuf allocation failed\n");
4685                 goto out_free_dmabuf;
4686         }
4687
4688         /* Cleanup any outstanding ELS commands */
4689         lpfc_els_flush_all_cmd(phba);
4690
4691         /* Block ELS IOCBs until we have done process link event */
4692         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4693
4694         /* Update link event statistics */
4695         phba->sli.slistat.link_event++;
4696
4697         /* Create lpfc_handle_latt mailbox command from link ACQE */
4698         lpfc_read_topology(phba, pmb, mp);
4699         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4700         pmb->vport = phba->pport;
4701
4702         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
4703                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
4704
4705                 switch (phba->sli4_hba.link_state.status) {
4706                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
4707                         phba->link_flag |= LS_MDS_LINK_DOWN;
4708                         break;
4709                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
4710                         phba->link_flag |= LS_MDS_LOOPBACK;
4711                         break;
4712                 default:
4713                         break;
4714                 }
4715
4716                 /* Initialize completion status */
4717                 mb = &pmb->u.mb;
4718                 mb->mbxStatus = MBX_SUCCESS;
4719
4720                 /* Parse port fault information field */
4721                 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
4722
4723                 /* Parse and translate link attention fields */
4724                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
4725                 la->eventTag = acqe_fc->event_tag;
4726
4727                 if (phba->sli4_hba.link_state.status ==
4728                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
4729                         bf_set(lpfc_mbx_read_top_att_type, la,
4730                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
4731                 } else {
4732                         bf_set(lpfc_mbx_read_top_att_type, la,
4733                                LPFC_FC_LA_TYPE_LINK_DOWN);
4734                 }
4735                 /* Invoke the mailbox command callback function */
4736                 lpfc_mbx_cmpl_read_topology(phba, pmb);
4737
4738                 return;
4739         }
4740
4741         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4742         if (rc == MBX_NOT_FINISHED)
4743                 goto out_free_dmabuf;
4744         return;
4745
4746 out_free_dmabuf:
4747         kfree(mp);
4748 out_free_pmb:
4749         mempool_free(pmb, phba->mbox_mem_pool);
4750 }
4751
4752 /**
4753  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4754  * @phba: pointer to lpfc hba data structure.
4755  * @acqe_fc: pointer to the async SLI completion queue entry.
4756  *
4757  * This routine is to handle the SLI4 asynchronous SLI events.
4758  **/
4759 static void
4760 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4761 {
4762         char port_name;
4763         char message[128];
4764         uint8_t status;
4765         uint8_t evt_type;
4766         uint8_t operational = 0;
4767         struct temp_event temp_event_data;
4768         struct lpfc_acqe_misconfigured_event *misconfigured;
4769         struct Scsi_Host  *shost;
4770
4771         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4772
4773         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4774                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4775                         "x%08x SLI Event Type:%d\n",
4776                         acqe_sli->event_data1, acqe_sli->event_data2,
4777                         evt_type);
4778
4779         port_name = phba->Port[0];
4780         if (port_name == 0x00)
4781                 port_name = '?'; /* get port name is empty */
4782
4783         switch (evt_type) {
4784         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4785                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4786                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4787                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4788
4789                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4790                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4791                                 acqe_sli->event_data1, port_name);
4792
4793                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
4794                 shost = lpfc_shost_from_vport(phba->pport);
4795                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4796                                           sizeof(temp_event_data),
4797                                           (char *)&temp_event_data,
4798                                           SCSI_NL_VID_TYPE_PCI
4799                                           | PCI_VENDOR_ID_EMULEX);
4800                 break;
4801         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4802                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4803                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4804                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4805
4806                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4807                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4808                                 acqe_sli->event_data1, port_name);
4809
4810                 shost = lpfc_shost_from_vport(phba->pport);
4811                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4812                                           sizeof(temp_event_data),
4813                                           (char *)&temp_event_data,
4814                                           SCSI_NL_VID_TYPE_PCI
4815                                           | PCI_VENDOR_ID_EMULEX);
4816                 break;
4817         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4818                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4819                                         &acqe_sli->event_data1;
4820
4821                 /* fetch the status for this port */
4822                 switch (phba->sli4_hba.lnk_info.lnk_no) {
4823                 case LPFC_LINK_NUMBER_0:
4824                         status = bf_get(lpfc_sli_misconfigured_port0_state,
4825                                         &misconfigured->theEvent);
4826                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
4827                                         &misconfigured->theEvent);
4828                         break;
4829                 case LPFC_LINK_NUMBER_1:
4830                         status = bf_get(lpfc_sli_misconfigured_port1_state,
4831                                         &misconfigured->theEvent);
4832                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
4833                                         &misconfigured->theEvent);
4834                         break;
4835                 case LPFC_LINK_NUMBER_2:
4836                         status = bf_get(lpfc_sli_misconfigured_port2_state,
4837                                         &misconfigured->theEvent);
4838                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
4839                                         &misconfigured->theEvent);
4840                         break;
4841                 case LPFC_LINK_NUMBER_3:
4842                         status = bf_get(lpfc_sli_misconfigured_port3_state,
4843                                         &misconfigured->theEvent);
4844                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
4845                                         &misconfigured->theEvent);
4846                         break;
4847                 default:
4848                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4849                                         "3296 "
4850                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
4851                                         "event: Invalid link %d",
4852                                         phba->sli4_hba.lnk_info.lnk_no);
4853                         return;
4854                 }
4855
4856                 /* Skip if optic state unchanged */
4857                 if (phba->sli4_hba.lnk_info.optic_state == status)
4858                         return;
4859
4860                 switch (status) {
4861                 case LPFC_SLI_EVENT_STATUS_VALID:
4862                         sprintf(message, "Physical Link is functional");
4863                         break;
4864                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4865                         sprintf(message, "Optics faulted/incorrectly "
4866                                 "installed/not installed - Reseat optics, "
4867                                 "if issue not resolved, replace.");
4868                         break;
4869                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4870                         sprintf(message,
4871                                 "Optics of two types installed - Remove one "
4872                                 "optic or install matching pair of optics.");
4873                         break;
4874                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4875                         sprintf(message, "Incompatible optics - Replace with "
4876                                 "compatible optics for card to function.");
4877                         break;
4878                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
4879                         sprintf(message, "Unqualified optics - Replace with "
4880                                 "Avago optics for Warranty and Technical "
4881                                 "Support - Link is%s operational",
4882                                 (operational) ? " not" : "");
4883                         break;
4884                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
4885                         sprintf(message, "Uncertified optics - Replace with "
4886                                 "Avago-certified optics to enable link "
4887                                 "operation - Link is%s operational",
4888                                 (operational) ? " not" : "");
4889                         break;
4890                 default:
4891                         /* firmware is reporting a status we don't know about */
4892                         sprintf(message, "Unknown event status x%02x", status);
4893                         break;
4894                 }
4895                 phba->sli4_hba.lnk_info.optic_state = status;
4896                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4897                                 "3176 Port Name %c %s\n", port_name, message);
4898                 break;
4899         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4900                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4901                                 "3192 Remote DPort Test Initiated - "
4902                                 "Event Data1:x%08x Event Data2: x%08x\n",
4903                                 acqe_sli->event_data1, acqe_sli->event_data2);
4904                 break;
4905         default:
4906                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4907                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4908                                 "x%08x SLI Event Type:%d\n",
4909                                 acqe_sli->event_data1, acqe_sli->event_data2,
4910                                 evt_type);
4911                 break;
4912         }
4913 }
4914
4915 /**
4916  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4917  * @vport: pointer to vport data structure.
4918  *
4919  * This routine is to perform Clear Virtual Link (CVL) on a vport in
4920  * response to a CVL event.
4921  *
4922  * Return the pointer to the ndlp with the vport if successful, otherwise
4923  * return NULL.
4924  **/
4925 static struct lpfc_nodelist *
4926 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4927 {
4928         struct lpfc_nodelist *ndlp;
4929         struct Scsi_Host *shost;
4930         struct lpfc_hba *phba;
4931
4932         if (!vport)
4933                 return NULL;
4934         phba = vport->phba;
4935         if (!phba)
4936                 return NULL;
4937         ndlp = lpfc_findnode_did(vport, Fabric_DID);
4938         if (!ndlp) {
4939                 /* Cannot find existing Fabric ndlp, so allocate a new one */
4940                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
4941                 if (!ndlp)
4942                         return 0;
4943                 /* Set the node type */
4944                 ndlp->nlp_type |= NLP_FABRIC;
4945                 /* Put ndlp onto node list */
4946                 lpfc_enqueue_node(vport, ndlp);
4947         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4948                 /* re-setup ndlp without removing from node list */
4949                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4950                 if (!ndlp)
4951                         return 0;
4952         }
4953         if ((phba->pport->port_state < LPFC_FLOGI) &&
4954                 (phba->pport->port_state != LPFC_VPORT_FAILED))
4955                 return NULL;
4956         /* If virtual link is not yet instantiated ignore CVL */
4957         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4958                 && (vport->port_state != LPFC_VPORT_FAILED))
4959                 return NULL;
4960         shost = lpfc_shost_from_vport(vport);
4961         if (!shost)
4962                 return NULL;
4963         lpfc_linkdown_port(vport);
4964         lpfc_cleanup_pending_mbox(vport);
4965         spin_lock_irq(shost->host_lock);
4966         vport->fc_flag |= FC_VPORT_CVL_RCVD;
4967         spin_unlock_irq(shost->host_lock);
4968
4969         return ndlp;
4970 }
4971
4972 /**
4973  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4974  * @vport: pointer to lpfc hba data structure.
4975  *
4976  * This routine is to perform Clear Virtual Link (CVL) on all vports in
4977  * response to a FCF dead event.
4978  **/
4979 static void
4980 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4981 {
4982         struct lpfc_vport **vports;
4983         int i;
4984
4985         vports = lpfc_create_vport_work_array(phba);
4986         if (vports)
4987                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4988                         lpfc_sli4_perform_vport_cvl(vports[i]);
4989         lpfc_destroy_vport_work_array(phba, vports);
4990 }
4991
4992 /**
4993  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4994  * @phba: pointer to lpfc hba data structure.
4995  * @acqe_link: pointer to the async fcoe completion queue entry.
4996  *
4997  * This routine is to handle the SLI4 asynchronous fcoe event.
4998  **/
4999 static void
5000 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
5001                         struct lpfc_acqe_fip *acqe_fip)
5002 {
5003         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
5004         int rc;
5005         struct lpfc_vport *vport;
5006         struct lpfc_nodelist *ndlp;
5007         struct Scsi_Host  *shost;
5008         int active_vlink_present;
5009         struct lpfc_vport **vports;
5010         int i;
5011
5012         phba->fc_eventTag = acqe_fip->event_tag;
5013         phba->fcoe_eventtag = acqe_fip->event_tag;
5014         switch (event_type) {
5015         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
5016         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
5017                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
5018                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5019                                         LOG_DISCOVERY,
5020                                         "2546 New FCF event, evt_tag:x%x, "
5021                                         "index:x%x\n",
5022                                         acqe_fip->event_tag,
5023                                         acqe_fip->index);
5024                 else
5025                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
5026                                         LOG_DISCOVERY,
5027                                         "2788 FCF param modified event, "
5028                                         "evt_tag:x%x, index:x%x\n",
5029                                         acqe_fip->event_tag,
5030                                         acqe_fip->index);
5031                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5032                         /*
5033                          * During period of FCF discovery, read the FCF
5034                          * table record indexed by the event to update
5035                          * FCF roundrobin failover eligible FCF bmask.
5036                          */
5037                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5038                                         LOG_DISCOVERY,
5039                                         "2779 Read FCF (x%x) for updating "
5040                                         "roundrobin FCF failover bmask\n",
5041                                         acqe_fip->index);
5042                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
5043                 }
5044
5045                 /* If the FCF discovery is in progress, do nothing. */
5046                 spin_lock_irq(&phba->hbalock);
5047                 if (phba->hba_flag & FCF_TS_INPROG) {
5048                         spin_unlock_irq(&phba->hbalock);
5049                         break;
5050                 }
5051                 /* If fast FCF failover rescan event is pending, do nothing */
5052                 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
5053                         spin_unlock_irq(&phba->hbalock);
5054                         break;
5055                 }
5056
5057                 /* If the FCF has been in discovered state, do nothing. */
5058                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
5059                         spin_unlock_irq(&phba->hbalock);
5060                         break;
5061                 }
5062                 spin_unlock_irq(&phba->hbalock);
5063
5064                 /* Otherwise, scan the entire FCF table and re-discover SAN */
5065                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5066                                 "2770 Start FCF table scan per async FCF "
5067                                 "event, evt_tag:x%x, index:x%x\n",
5068                                 acqe_fip->event_tag, acqe_fip->index);
5069                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
5070                                                      LPFC_FCOE_FCF_GET_FIRST);
5071                 if (rc)
5072                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5073                                         "2547 Issue FCF scan read FCF mailbox "
5074                                         "command failed (x%x)\n", rc);
5075                 break;
5076
5077         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
5078                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5079                         "2548 FCF Table full count 0x%x tag 0x%x\n",
5080                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
5081                         acqe_fip->event_tag);
5082                 break;
5083
5084         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
5085                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5086                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5087                         "2549 FCF (x%x) disconnected from network, "
5088                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
5089                 /*
5090                  * If we are in the middle of FCF failover process, clear
5091                  * the corresponding FCF bit in the roundrobin bitmap.
5092                  */
5093                 spin_lock_irq(&phba->hbalock);
5094                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
5095                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
5096                         spin_unlock_irq(&phba->hbalock);
5097                         /* Update FLOGI FCF failover eligible FCF bmask */
5098                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
5099                         break;
5100                 }
5101                 spin_unlock_irq(&phba->hbalock);
5102
5103                 /* If the event is not for currently used fcf do nothing */
5104                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
5105                         break;
5106
5107                 /*
5108                  * Otherwise, request the port to rediscover the entire FCF
5109                  * table for a fast recovery from case that the current FCF
5110                  * is no longer valid as we are not in the middle of FCF
5111                  * failover process already.
5112                  */
5113                 spin_lock_irq(&phba->hbalock);
5114                 /* Mark the fast failover process in progress */
5115                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
5116                 spin_unlock_irq(&phba->hbalock);
5117
5118                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5119                                 "2771 Start FCF fast failover process due to "
5120                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
5121                                 "\n", acqe_fip->event_tag, acqe_fip->index);
5122                 rc = lpfc_sli4_redisc_fcf_table(phba);
5123                 if (rc) {
5124                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5125                                         LOG_DISCOVERY,
5126                                         "2772 Issue FCF rediscover mailbox "
5127                                         "command failed, fail through to FCF "
5128                                         "dead event\n");
5129                         spin_lock_irq(&phba->hbalock);
5130                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
5131                         spin_unlock_irq(&phba->hbalock);
5132                         /*
5133                          * Last resort will fail over by treating this
5134                          * as a link down to FCF registration.
5135                          */
5136                         lpfc_sli4_fcf_dead_failthrough(phba);
5137                 } else {
5138                         /* Reset FCF roundrobin bmask for new discovery */
5139                         lpfc_sli4_clear_fcf_rr_bmask(phba);
5140                         /*
5141                          * Handling fast FCF failover to a DEAD FCF event is
5142                          * considered equalivant to receiving CVL to all vports.
5143                          */
5144                         lpfc_sli4_perform_all_vport_cvl(phba);
5145                 }
5146                 break;
5147         case LPFC_FIP_EVENT_TYPE_CVL:
5148                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5149                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5150                         "2718 Clear Virtual Link Received for VPI 0x%x"
5151                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
5152
5153                 vport = lpfc_find_vport_by_vpid(phba,
5154                                                 acqe_fip->index);
5155                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
5156                 if (!ndlp)
5157                         break;
5158                 active_vlink_present = 0;
5159
5160                 vports = lpfc_create_vport_work_array(phba);
5161                 if (vports) {
5162                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5163                                         i++) {
5164                                 if ((!(vports[i]->fc_flag &
5165                                         FC_VPORT_CVL_RCVD)) &&
5166                                         (vports[i]->port_state > LPFC_FDISC)) {
5167                                         active_vlink_present = 1;
5168                                         break;
5169                                 }
5170                         }
5171                         lpfc_destroy_vport_work_array(phba, vports);
5172                 }
5173
5174                 /*
5175                  * Don't re-instantiate if vport is marked for deletion.
5176                  * If we are here first then vport_delete is going to wait
5177                  * for discovery to complete.
5178                  */
5179                 if (!(vport->load_flag & FC_UNLOADING) &&
5180                                         active_vlink_present) {
5181                         /*
5182                          * If there are other active VLinks present,
5183                          * re-instantiate the Vlink using FDISC.
5184                          */
5185                         mod_timer(&ndlp->nlp_delayfunc,
5186                                   jiffies + msecs_to_jiffies(1000));
5187                         shost = lpfc_shost_from_vport(vport);
5188                         spin_lock_irq(shost->host_lock);
5189                         ndlp->nlp_flag |= NLP_DELAY_TMO;
5190                         spin_unlock_irq(shost->host_lock);
5191                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5192                         vport->port_state = LPFC_FDISC;
5193                 } else {
5194                         /*
5195                          * Otherwise, we request port to rediscover
5196                          * the entire FCF table for a fast recovery
5197                          * from possible case that the current FCF
5198                          * is no longer valid if we are not already
5199                          * in the FCF failover process.
5200                          */
5201                         spin_lock_irq(&phba->hbalock);
5202                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5203                                 spin_unlock_irq(&phba->hbalock);
5204                                 break;
5205                         }
5206                         /* Mark the fast failover process in progress */
5207                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5208                         spin_unlock_irq(&phba->hbalock);
5209                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5210                                         LOG_DISCOVERY,
5211                                         "2773 Start FCF failover per CVL, "
5212                                         "evt_tag:x%x\n", acqe_fip->event_tag);
5213                         rc = lpfc_sli4_redisc_fcf_table(phba);
5214                         if (rc) {
5215                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5216                                                 LOG_DISCOVERY,
5217                                                 "2774 Issue FCF rediscover "
5218                                                 "mailbox command failed, "
5219                                                 "through to CVL event\n");
5220                                 spin_lock_irq(&phba->hbalock);
5221                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5222                                 spin_unlock_irq(&phba->hbalock);
5223                                 /*
5224                                  * Last resort will be re-try on the
5225                                  * the current registered FCF entry.
5226                                  */
5227                                 lpfc_retry_pport_discovery(phba);
5228                         } else
5229                                 /*
5230                                  * Reset FCF roundrobin bmask for new
5231                                  * discovery.
5232                                  */
5233                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
5234                 }
5235                 break;
5236         default:
5237                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5238                         "0288 Unknown FCoE event type 0x%x event tag "
5239                         "0x%x\n", event_type, acqe_fip->event_tag);
5240                 break;
5241         }
5242 }
5243
5244 /**
5245  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5246  * @phba: pointer to lpfc hba data structure.
5247  * @acqe_link: pointer to the async dcbx completion queue entry.
5248  *
5249  * This routine is to handle the SLI4 asynchronous dcbx event.
5250  **/
5251 static void
5252 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5253                          struct lpfc_acqe_dcbx *acqe_dcbx)
5254 {
5255         phba->fc_eventTag = acqe_dcbx->event_tag;
5256         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5257                         "0290 The SLI4 DCBX asynchronous event is not "
5258                         "handled yet\n");
5259 }
5260
5261 /**
5262  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5263  * @phba: pointer to lpfc hba data structure.
5264  * @acqe_link: pointer to the async grp5 completion queue entry.
5265  *
5266  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5267  * is an asynchronous notified of a logical link speed change.  The Port
5268  * reports the logical link speed in units of 10Mbps.
5269  **/
5270 static void
5271 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5272                          struct lpfc_acqe_grp5 *acqe_grp5)
5273 {
5274         uint16_t prev_ll_spd;
5275
5276         phba->fc_eventTag = acqe_grp5->event_tag;
5277         phba->fcoe_eventtag = acqe_grp5->event_tag;
5278         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5279         phba->sli4_hba.link_state.logical_speed =
5280                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5281         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5282                         "2789 GRP5 Async Event: Updating logical link speed "
5283                         "from %dMbps to %dMbps\n", prev_ll_spd,
5284                         phba->sli4_hba.link_state.logical_speed);
5285 }
5286
5287 /**
5288  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5289  * @phba: pointer to lpfc hba data structure.
5290  *
5291  * This routine is invoked by the worker thread to process all the pending
5292  * SLI4 asynchronous events.
5293  **/
5294 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5295 {
5296         struct lpfc_cq_event *cq_event;
5297
5298         /* First, declare the async event has been handled */
5299         spin_lock_irq(&phba->hbalock);
5300         phba->hba_flag &= ~ASYNC_EVENT;
5301         spin_unlock_irq(&phba->hbalock);
5302         /* Now, handle all the async events */
5303         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5304                 /* Get the first event from the head of the event queue */
5305                 spin_lock_irq(&phba->hbalock);
5306                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5307                                  cq_event, struct lpfc_cq_event, list);
5308                 spin_unlock_irq(&phba->hbalock);
5309                 /* Process the asynchronous event */
5310                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5311                 case LPFC_TRAILER_CODE_LINK:
5312                         lpfc_sli4_async_link_evt(phba,
5313                                                  &cq_event->cqe.acqe_link);
5314                         break;
5315                 case LPFC_TRAILER_CODE_FCOE:
5316                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5317                         break;
5318                 case LPFC_TRAILER_CODE_DCBX:
5319                         lpfc_sli4_async_dcbx_evt(phba,
5320                                                  &cq_event->cqe.acqe_dcbx);
5321                         break;
5322                 case LPFC_TRAILER_CODE_GRP5:
5323                         lpfc_sli4_async_grp5_evt(phba,
5324                                                  &cq_event->cqe.acqe_grp5);
5325                         break;
5326                 case LPFC_TRAILER_CODE_FC:
5327                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5328                         break;
5329                 case LPFC_TRAILER_CODE_SLI:
5330                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5331                         break;
5332                 default:
5333                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5334                                         "1804 Invalid asynchrous event code: "
5335                                         "x%x\n", bf_get(lpfc_trailer_code,
5336                                         &cq_event->cqe.mcqe_cmpl));
5337                         break;
5338                 }
5339                 /* Free the completion event processed to the free pool */
5340                 lpfc_sli4_cq_event_release(phba, cq_event);
5341         }
5342 }
5343
5344 /**
5345  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
5346  * @phba: pointer to lpfc hba data structure.
5347  *
5348  * This routine is invoked by the worker thread to process FCF table
5349  * rediscovery pending completion event.
5350  **/
5351 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
5352 {
5353         int rc;
5354
5355         spin_lock_irq(&phba->hbalock);
5356         /* Clear FCF rediscovery timeout event */
5357         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
5358         /* Clear driver fast failover FCF record flag */
5359         phba->fcf.failover_rec.flag = 0;
5360         /* Set state for FCF fast failover */
5361         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
5362         spin_unlock_irq(&phba->hbalock);
5363
5364         /* Scan FCF table from the first entry to re-discover SAN */
5365         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5366                         "2777 Start post-quiescent FCF table scan\n");
5367         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5368         if (rc)
5369                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5370                                 "2747 Issue FCF scan read FCF mailbox "
5371                                 "command failed 0x%x\n", rc);
5372 }
5373
5374 /**
5375  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
5376  * @phba: pointer to lpfc hba data structure.
5377  * @dev_grp: The HBA PCI-Device group number.
5378  *
5379  * This routine is invoked to set up the per HBA PCI-Device group function
5380  * API jump table entries.
5381  *
5382  * Return: 0 if success, otherwise -ENODEV
5383  **/
5384 int
5385 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5386 {
5387         int rc;
5388
5389         /* Set up lpfc PCI-device group */
5390         phba->pci_dev_grp = dev_grp;
5391
5392         /* The LPFC_PCI_DEV_OC uses SLI4 */
5393         if (dev_grp == LPFC_PCI_DEV_OC)
5394                 phba->sli_rev = LPFC_SLI_REV4;
5395
5396         /* Set up device INIT API function jump table */
5397         rc = lpfc_init_api_table_setup(phba, dev_grp);
5398         if (rc)
5399                 return -ENODEV;
5400         /* Set up SCSI API function jump table */
5401         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
5402         if (rc)
5403                 return -ENODEV;
5404         /* Set up SLI API function jump table */
5405         rc = lpfc_sli_api_table_setup(phba, dev_grp);
5406         if (rc)
5407                 return -ENODEV;
5408         /* Set up MBOX API function jump table */
5409         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
5410         if (rc)
5411                 return -ENODEV;
5412
5413         return 0;
5414 }
5415
5416 /**
5417  * lpfc_log_intr_mode - Log the active interrupt mode
5418  * @phba: pointer to lpfc hba data structure.
5419  * @intr_mode: active interrupt mode adopted.
5420  *
5421  * This routine it invoked to log the currently used active interrupt mode
5422  * to the device.
5423  **/
5424 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5425 {
5426         switch (intr_mode) {
5427         case 0:
5428                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5429                                 "0470 Enable INTx interrupt mode.\n");
5430                 break;
5431         case 1:
5432                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5433                                 "0481 Enabled MSI interrupt mode.\n");
5434                 break;
5435         case 2:
5436                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5437                                 "0480 Enabled MSI-X interrupt mode.\n");
5438                 break;
5439         default:
5440                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5441                                 "0482 Illegal interrupt mode.\n");
5442                 break;
5443         }
5444         return;
5445 }
5446
5447 /**
5448  * lpfc_enable_pci_dev - Enable a generic PCI device.
5449  * @phba: pointer to lpfc hba data structure.
5450  *
5451  * This routine is invoked to enable the PCI device that is common to all
5452  * PCI devices.
5453  *
5454  * Return codes
5455  *      0 - successful
5456  *      other values - error
5457  **/
5458 static int
5459 lpfc_enable_pci_dev(struct lpfc_hba *phba)
5460 {
5461         struct pci_dev *pdev;
5462
5463         /* Obtain PCI device reference */
5464         if (!phba->pcidev)
5465                 goto out_error;
5466         else
5467                 pdev = phba->pcidev;
5468         /* Enable PCI device */
5469         if (pci_enable_device_mem(pdev))
5470                 goto out_error;
5471         /* Request PCI resource for the device */
5472         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
5473                 goto out_disable_device;
5474         /* Set up device as PCI master and save state for EEH */
5475         pci_set_master(pdev);
5476         pci_try_set_mwi(pdev);
5477         pci_save_state(pdev);
5478
5479         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
5480         if (pci_is_pcie(pdev))
5481                 pdev->needs_freset = 1;
5482
5483         return 0;
5484
5485 out_disable_device:
5486         pci_disable_device(pdev);
5487 out_error:
5488         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5489                         "1401 Failed to enable pci device\n");
5490         return -ENODEV;
5491 }
5492
5493 /**
5494  * lpfc_disable_pci_dev - Disable a generic PCI device.
5495  * @phba: pointer to lpfc hba data structure.
5496  *
5497  * This routine is invoked to disable the PCI device that is common to all
5498  * PCI devices.
5499  **/
5500 static void
5501 lpfc_disable_pci_dev(struct lpfc_hba *phba)
5502 {
5503         struct pci_dev *pdev;
5504
5505         /* Obtain PCI device reference */
5506         if (!phba->pcidev)
5507                 return;
5508         else
5509                 pdev = phba->pcidev;
5510         /* Release PCI resource and disable PCI device */
5511         pci_release_mem_regions(pdev);
5512         pci_disable_device(pdev);
5513
5514         return;
5515 }
5516
5517 /**
5518  * lpfc_reset_hba - Reset a hba
5519  * @phba: pointer to lpfc hba data structure.
5520  *
5521  * This routine is invoked to reset a hba device. It brings the HBA
5522  * offline, performs a board restart, and then brings the board back
5523  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
5524  * on outstanding mailbox commands.
5525  **/
5526 void
5527 lpfc_reset_hba(struct lpfc_hba *phba)
5528 {
5529         /* If resets are disabled then set error state and return. */
5530         if (!phba->cfg_enable_hba_reset) {
5531                 phba->link_state = LPFC_HBA_ERROR;
5532                 return;
5533         }
5534         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
5535                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
5536         else
5537                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
5538         lpfc_offline(phba);
5539         lpfc_sli_brdrestart(phba);
5540         lpfc_online(phba);
5541         lpfc_unblock_mgmt_io(phba);
5542 }
5543
5544 /**
5545  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
5546  * @phba: pointer to lpfc hba data structure.
5547  *
5548  * This function enables the PCI SR-IOV virtual functions to a physical
5549  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5550  * enable the number of virtual functions to the physical function. As
5551  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5552  * API call does not considered as an error condition for most of the device.
5553  **/
5554 uint16_t
5555 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
5556 {
5557         struct pci_dev *pdev = phba->pcidev;
5558         uint16_t nr_virtfn;
5559         int pos;
5560
5561         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
5562         if (pos == 0)
5563                 return 0;
5564
5565         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
5566         return nr_virtfn;
5567 }
5568
5569 /**
5570  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
5571  * @phba: pointer to lpfc hba data structure.
5572  * @nr_vfn: number of virtual functions to be enabled.
5573  *
5574  * This function enables the PCI SR-IOV virtual functions to a physical
5575  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5576  * enable the number of virtual functions to the physical function. As
5577  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5578  * API call does not considered as an error condition for most of the device.
5579  **/
5580 int
5581 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
5582 {
5583         struct pci_dev *pdev = phba->pcidev;
5584         uint16_t max_nr_vfn;
5585         int rc;
5586
5587         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
5588         if (nr_vfn > max_nr_vfn) {
5589                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5590                                 "3057 Requested vfs (%d) greater than "
5591                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
5592                 return -EINVAL;
5593         }
5594
5595         rc = pci_enable_sriov(pdev, nr_vfn);
5596         if (rc) {
5597                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5598                                 "2806 Failed to enable sriov on this device "
5599                                 "with vfn number nr_vf:%d, rc:%d\n",
5600                                 nr_vfn, rc);
5601         } else
5602                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5603                                 "2807 Successful enable sriov on this device "
5604                                 "with vfn number nr_vf:%d\n", nr_vfn);
5605         return rc;
5606 }
5607
5608 /**
5609  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5610  * @phba: pointer to lpfc hba data structure.
5611  *
5612  * This routine is invoked to set up the driver internal resources before the
5613  * device specific resource setup to support the HBA device it attached to.
5614  *
5615  * Return codes
5616  *      0 - successful
5617  *      other values - error
5618  **/
5619 static int
5620 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5621 {
5622         struct lpfc_sli *psli = &phba->sli;
5623
5624         /*
5625          * Driver resources common to all SLI revisions
5626          */
5627         atomic_set(&phba->fast_event_count, 0);
5628         spin_lock_init(&phba->hbalock);
5629
5630         /* Initialize ndlp management spinlock */
5631         spin_lock_init(&phba->ndlp_lock);
5632
5633         INIT_LIST_HEAD(&phba->port_list);
5634         INIT_LIST_HEAD(&phba->work_list);
5635         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5636
5637         /* Initialize the wait queue head for the kernel thread */
5638         init_waitqueue_head(&phba->work_waitq);
5639
5640         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5641                         "1403 Protocols supported %s %s %s\n",
5642                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
5643                                 "SCSI" : " "),
5644                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
5645                                 "NVME" : " "),
5646                         (phba->nvmet_support ? "NVMET" : " "));
5647
5648         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
5649                 /* Initialize the scsi buffer list used by driver for scsi IO */
5650                 spin_lock_init(&phba->scsi_buf_list_get_lock);
5651                 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5652                 spin_lock_init(&phba->scsi_buf_list_put_lock);
5653                 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5654         }
5655
5656         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
5657                 (phba->nvmet_support == 0)) {
5658                 /* Initialize the NVME buffer list used by driver for NVME IO */
5659                 spin_lock_init(&phba->nvme_buf_list_get_lock);
5660                 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get);
5661                 phba->get_nvme_bufs = 0;
5662                 spin_lock_init(&phba->nvme_buf_list_put_lock);
5663                 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
5664                 phba->put_nvme_bufs = 0;
5665         }
5666
5667         /* Initialize the fabric iocb list */
5668         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5669
5670         /* Initialize list to save ELS buffers */
5671         INIT_LIST_HEAD(&phba->elsbuf);
5672
5673         /* Initialize FCF connection rec list */
5674         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5675
5676         /* Initialize OAS configuration list */
5677         spin_lock_init(&phba->devicelock);
5678         INIT_LIST_HEAD(&phba->luns);
5679
5680         /* MBOX heartbeat timer */
5681         timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
5682         /* Fabric block timer */
5683         timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
5684         /* EA polling mode timer */
5685         timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
5686         /* Heartbeat timer */
5687         timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
5688
5689         return 0;
5690 }
5691
5692 /**
5693  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
5694  * @phba: pointer to lpfc hba data structure.
5695  *
5696  * This routine is invoked to set up the driver internal resources specific to
5697  * support the SLI-3 HBA device it attached to.
5698  *
5699  * Return codes
5700  * 0 - successful
5701  * other values - error
5702  **/
5703 static int
5704 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
5705 {
5706         int rc;
5707
5708         /*
5709          * Initialize timers used by driver
5710          */
5711
5712         /* FCP polling mode timer */
5713         timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
5714
5715         /* Host attention work mask setup */
5716         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
5717         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
5718
5719         /* Get all the module params for configuring this host */
5720         lpfc_get_cfgparam(phba);
5721         /* Set up phase-1 common device driver resources */
5722
5723         rc = lpfc_setup_driver_resource_phase1(phba);
5724         if (rc)
5725                 return -ENODEV;
5726
5727         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
5728                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
5729                 /* check for menlo minimum sg count */
5730                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
5731                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
5732         }
5733
5734         if (!phba->sli.sli3_ring)
5735                 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
5736                                               sizeof(struct lpfc_sli_ring),
5737                                               GFP_KERNEL);
5738         if (!phba->sli.sli3_ring)
5739                 return -ENOMEM;
5740
5741         /*
5742          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5743          * used to create the sg_dma_buf_pool must be dynamically calculated.
5744          */
5745
5746         /* Initialize the host templates the configured values. */
5747         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5748         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
5749         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5750
5751         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5752         if (phba->cfg_enable_bg) {
5753                 /*
5754                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5755                  * the FCP rsp, and a BDE for each. Sice we have no control
5756                  * over how many protection data segments the SCSI Layer
5757                  * will hand us (ie: there could be one for every block
5758                  * in the IO), we just allocate enough BDEs to accomidate
5759                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5760                  * minimize the risk of running out.
5761                  */
5762                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5763                         sizeof(struct fcp_rsp) +
5764                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5765
5766                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5767                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5768
5769                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5770                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5771         } else {
5772                 /*
5773                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5774                  * the FCP rsp, a BDE for each, and a BDE for up to
5775                  * cfg_sg_seg_cnt data segments.
5776                  */
5777                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5778                         sizeof(struct fcp_rsp) +
5779                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5780
5781                 /* Total BDEs in BPL for scsi_sg_list */
5782                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5783         }
5784
5785         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5786                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5787                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5788                         phba->cfg_total_seg_cnt);
5789
5790         phba->max_vpi = LPFC_MAX_VPI;
5791         /* This will be set to correct value after config_port mbox */
5792         phba->max_vports = 0;
5793
5794         /*
5795          * Initialize the SLI Layer to run with lpfc HBAs.
5796          */
5797         lpfc_sli_setup(phba);
5798         lpfc_sli_queue_init(phba);
5799
5800         /* Allocate device driver memory */
5801         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5802                 return -ENOMEM;
5803
5804         /*
5805          * Enable sr-iov virtual functions if supported and configured
5806          * through the module parameter.
5807          */
5808         if (phba->cfg_sriov_nr_virtfn > 0) {
5809                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5810                                                  phba->cfg_sriov_nr_virtfn);
5811                 if (rc) {
5812                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5813                                         "2808 Requested number of SR-IOV "
5814                                         "virtual functions (%d) is not "
5815                                         "supported\n",
5816                                         phba->cfg_sriov_nr_virtfn);
5817                         phba->cfg_sriov_nr_virtfn = 0;
5818                 }
5819         }
5820
5821         return 0;
5822 }
5823
5824 /**
5825  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5826  * @phba: pointer to lpfc hba data structure.
5827  *
5828  * This routine is invoked to unset the driver internal resources set up
5829  * specific for supporting the SLI-3 HBA device it attached to.
5830  **/
5831 static void
5832 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5833 {
5834         /* Free device driver memory allocated */
5835         lpfc_mem_free_all(phba);
5836
5837         return;
5838 }
5839
5840 /**
5841  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5842  * @phba: pointer to lpfc hba data structure.
5843  *
5844  * This routine is invoked to set up the driver internal resources specific to
5845  * support the SLI-4 HBA device it attached to.
5846  *
5847  * Return codes
5848  *      0 - successful
5849  *      other values - error
5850  **/
5851 static int
5852 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5853 {
5854         LPFC_MBOXQ_t *mboxq;
5855         MAILBOX_t *mb;
5856         int rc, i, max_buf_size;
5857         int longs;
5858         int fof_vectors = 0;
5859         int extra;
5860         uint64_t wwn;
5861         u32 if_type;
5862         u32 if_fam;
5863
5864         phba->sli4_hba.num_online_cpu = num_online_cpus();
5865         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
5866         phba->sli4_hba.curr_disp_cpu = 0;
5867
5868         /* Get all the module params for configuring this host */
5869         lpfc_get_cfgparam(phba);
5870
5871         /* Set up phase-1 common device driver resources */
5872         rc = lpfc_setup_driver_resource_phase1(phba);
5873         if (rc)
5874                 return -ENODEV;
5875
5876         /* Before proceed, wait for POST done and device ready */
5877         rc = lpfc_sli4_post_status_check(phba);
5878         if (rc)
5879                 return -ENODEV;
5880
5881         /*
5882          * Initialize timers used by driver
5883          */
5884
5885         timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
5886
5887         /* FCF rediscover timer */
5888         timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
5889
5890         /*
5891          * Control structure for handling external multi-buffer mailbox
5892          * command pass-through.
5893          */
5894         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5895                 sizeof(struct lpfc_mbox_ext_buf_ctx));
5896         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5897
5898         phba->max_vpi = LPFC_MAX_VPI;
5899
5900         /* This will be set to correct value after the read_config mbox */
5901         phba->max_vports = 0;
5902
5903         /* Program the default value of vlan_id and fc_map */
5904         phba->valid_vlan = 0;
5905         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5906         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5907         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5908
5909         /*
5910          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5911          * we will associate a new ring, for each EQ/CQ/WQ tuple.
5912          * The WQ create will allocate the ring.
5913          */
5914
5915         /*
5916          * 1 for cmd, 1 for rsp, NVME adds an extra one
5917          * for boundary conditions in its max_sgl_segment template.
5918          */
5919         extra = 2;
5920         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
5921                 extra++;
5922
5923         /*
5924          * It doesn't matter what family our adapter is in, we are
5925          * limited to 2 Pages, 512 SGEs, for our SGL.
5926          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5927          */
5928         max_buf_size = (2 * SLI4_PAGE_SIZE);
5929         if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - extra)
5930                 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - extra;
5931
5932         /*
5933          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
5934          * used to create the sg_dma_buf_pool must be calculated.
5935          */
5936         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
5937                 /*
5938                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
5939                  * the FCP rsp, and a SGE. Sice we have no control
5940                  * over how many protection segments the SCSI Layer
5941                  * will hand us (ie: there could be one for every block
5942                  * in the IO), just allocate enough SGEs to accomidate
5943                  * our max amount and we need to limit lpfc_sg_seg_cnt
5944                  * to minimize the risk of running out.
5945                  */
5946                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5947                                 sizeof(struct fcp_rsp) + max_buf_size;
5948
5949                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5950                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5951
5952                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5953                         phba->cfg_sg_seg_cnt =
5954                                 LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5955         } else {
5956                 /*
5957                  * The scsi_buf for a regular I/O holds the FCP cmnd,
5958                  * the FCP rsp, a SGE for each, and a SGE for up to
5959                  * cfg_sg_seg_cnt data segments.
5960                  */
5961                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5962                                 sizeof(struct fcp_rsp) +
5963                                 ((phba->cfg_sg_seg_cnt + extra) *
5964                                 sizeof(struct sli4_sge));
5965
5966                 /* Total SGEs for scsi_sg_list */
5967                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
5968
5969                 /*
5970                  * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
5971                  * need to post 1 page for the SGL.
5972                  */
5973         }
5974
5975         /* Initialize the host templates with the updated values. */
5976         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5977         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5978         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
5979
5980         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
5981                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5982         else
5983                 phba->cfg_sg_dma_buf_size =
5984                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5985
5986         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5987                         "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5988                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5989                         phba->cfg_total_seg_cnt);
5990
5991         /* Initialize buffer queue management fields */
5992         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
5993         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5994         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5995
5996         /*
5997          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5998          */
5999         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
6000                 /* Initialize the Abort scsi buffer list used by driver */
6001                 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
6002                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
6003         }
6004
6005         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6006                 /* Initialize the Abort nvme buffer list used by driver */
6007                 spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock);
6008                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
6009                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6010                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
6011         }
6012
6013         /* This abort list used by worker thread */
6014         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
6015         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
6016
6017         /*
6018          * Initialize driver internal slow-path work queues
6019          */
6020
6021         /* Driver internel slow-path CQ Event pool */
6022         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
6023         /* Response IOCB work queue list */
6024         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
6025         /* Asynchronous event CQ Event work queue list */
6026         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
6027         /* Fast-path XRI aborted CQ Event work queue list */
6028         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
6029         /* Slow-path XRI aborted CQ Event work queue list */
6030         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
6031         /* Receive queue CQ Event work queue list */
6032         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
6033
6034         /* Initialize extent block lists. */
6035         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
6036         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
6037         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
6038         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
6039
6040         /* Initialize mboxq lists. If the early init routines fail
6041          * these lists need to be correctly initialized.
6042          */
6043         INIT_LIST_HEAD(&phba->sli.mboxq);
6044         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
6045
6046         /* initialize optic_state to 0xFF */
6047         phba->sli4_hba.lnk_info.optic_state = 0xff;
6048
6049         /* Allocate device driver memory */
6050         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
6051         if (rc)
6052                 return -ENOMEM;
6053
6054         /* IF Type 2 ports get initialized now. */
6055         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
6056             LPFC_SLI_INTF_IF_TYPE_2) {
6057                 rc = lpfc_pci_function_reset(phba);
6058                 if (unlikely(rc)) {
6059                         rc = -ENODEV;
6060                         goto out_free_mem;
6061                 }
6062                 phba->temp_sensor_support = 1;
6063         }
6064
6065         /* Create the bootstrap mailbox command */
6066         rc = lpfc_create_bootstrap_mbox(phba);
6067         if (unlikely(rc))
6068                 goto out_free_mem;
6069
6070         /* Set up the host's endian order with the device. */
6071         rc = lpfc_setup_endian_order(phba);
6072         if (unlikely(rc))
6073                 goto out_free_bsmbx;
6074
6075         /* Set up the hba's configuration parameters. */
6076         rc = lpfc_sli4_read_config(phba);
6077         if (unlikely(rc))
6078                 goto out_free_bsmbx;
6079         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
6080         if (unlikely(rc))
6081                 goto out_free_bsmbx;
6082
6083         /* IF Type 0 ports get initialized now. */
6084         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6085             LPFC_SLI_INTF_IF_TYPE_0) {
6086                 rc = lpfc_pci_function_reset(phba);
6087                 if (unlikely(rc))
6088                         goto out_free_bsmbx;
6089         }
6090
6091         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6092                                                        GFP_KERNEL);
6093         if (!mboxq) {
6094                 rc = -ENOMEM;
6095                 goto out_free_bsmbx;
6096         }
6097
6098         /* Check for NVMET being configured */
6099         phba->nvmet_support = 0;
6100         if (lpfc_enable_nvmet_cnt) {
6101
6102                 /* First get WWN of HBA instance */
6103                 lpfc_read_nv(phba, mboxq);
6104                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6105                 if (rc != MBX_SUCCESS) {
6106                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6107                                         "6016 Mailbox failed , mbxCmd x%x "
6108                                         "READ_NV, mbxStatus x%x\n",
6109                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6110                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
6111                         mempool_free(mboxq, phba->mbox_mem_pool);
6112                         rc = -EIO;
6113                         goto out_free_bsmbx;
6114                 }
6115                 mb = &mboxq->u.mb;
6116                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
6117                        sizeof(uint64_t));
6118                 wwn = cpu_to_be64(wwn);
6119                 phba->sli4_hba.wwnn.u.name = wwn;
6120                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
6121                        sizeof(uint64_t));
6122                 /* wwn is WWPN of HBA instance */
6123                 wwn = cpu_to_be64(wwn);
6124                 phba->sli4_hba.wwpn.u.name = wwn;
6125
6126                 /* Check to see if it matches any module parameter */
6127                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
6128                         if (wwn == lpfc_enable_nvmet[i]) {
6129 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
6130                                 if (lpfc_nvmet_mem_alloc(phba))
6131                                         break;
6132
6133                                 phba->nvmet_support = 1; /* a match */
6134
6135                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6136                                                 "6017 NVME Target %016llx\n",
6137                                                 wwn);
6138 #else
6139                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6140                                                 "6021 Can't enable NVME Target."
6141                                                 " NVME_TARGET_FC infrastructure"
6142                                                 " is not in kernel\n");
6143 #endif
6144                                 break;
6145                         }
6146                 }
6147         }
6148
6149         lpfc_nvme_mod_param_dep(phba);
6150
6151         /*
6152          * Get sli4 parameters that override parameters from Port capabilities.
6153          * If this call fails, it isn't critical unless the SLI4 parameters come
6154          * back in conflict.
6155          */
6156         rc = lpfc_get_sli4_parameters(phba, mboxq);
6157         if (rc) {
6158                 if_type = bf_get(lpfc_sli_intf_if_type,
6159                                  &phba->sli4_hba.sli_intf);
6160                 if_fam = bf_get(lpfc_sli_intf_sli_family,
6161                                 &phba->sli4_hba.sli_intf);
6162                 if (phba->sli4_hba.extents_in_use &&
6163                     phba->sli4_hba.rpi_hdrs_in_use) {
6164                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6165                                 "2999 Unsupported SLI4 Parameters "
6166                                 "Extents and RPI headers enabled.\n");
6167                         if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6168                             if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
6169                                 mempool_free(mboxq, phba->mbox_mem_pool);
6170                                 rc = -EIO;
6171                                 goto out_free_bsmbx;
6172                         }
6173                 }
6174                 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6175                       if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
6176                         mempool_free(mboxq, phba->mbox_mem_pool);
6177                         rc = -EIO;
6178                         goto out_free_bsmbx;
6179                 }
6180         }
6181
6182         mempool_free(mboxq, phba->mbox_mem_pool);
6183
6184         /* Verify OAS is supported */
6185         lpfc_sli4_oas_verify(phba);
6186         if (phba->cfg_fof)
6187                 fof_vectors = 1;
6188
6189         /* Verify all the SLI4 queues */
6190         rc = lpfc_sli4_queue_verify(phba);
6191         if (rc)
6192                 goto out_free_bsmbx;
6193
6194         /* Create driver internal CQE event pool */
6195         rc = lpfc_sli4_cq_event_pool_create(phba);
6196         if (rc)
6197                 goto out_free_bsmbx;
6198
6199         /* Initialize sgl lists per host */
6200         lpfc_init_sgl_list(phba);
6201
6202         /* Allocate and initialize active sgl array */
6203         rc = lpfc_init_active_sgl_array(phba);
6204         if (rc) {
6205                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6206                                 "1430 Failed to initialize sgl list.\n");
6207                 goto out_destroy_cq_event_pool;
6208         }
6209         rc = lpfc_sli4_init_rpi_hdrs(phba);
6210         if (rc) {
6211                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6212                                 "1432 Failed to initialize rpi headers.\n");
6213                 goto out_free_active_sgl;
6214         }
6215
6216         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6217         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6218         phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
6219                                          GFP_KERNEL);
6220         if (!phba->fcf.fcf_rr_bmask) {
6221                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6222                                 "2759 Failed allocate memory for FCF round "
6223                                 "robin failover bmask\n");
6224                 rc = -ENOMEM;
6225                 goto out_remove_rpi_hdrs;
6226         }
6227
6228         phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs,
6229                                                 sizeof(struct lpfc_hba_eq_hdl),
6230                                                 GFP_KERNEL);
6231         if (!phba->sli4_hba.hba_eq_hdl) {
6232                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6233                                 "2572 Failed allocate memory for "
6234                                 "fast-path per-EQ handle array\n");
6235                 rc = -ENOMEM;
6236                 goto out_free_fcf_rr_bmask;
6237         }
6238
6239         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu,
6240                                         sizeof(struct lpfc_vector_map_info),
6241                                         GFP_KERNEL);
6242         if (!phba->sli4_hba.cpu_map) {
6243                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6244                                 "3327 Failed allocate memory for msi-x "
6245                                 "interrupt vector mapping\n");
6246                 rc = -ENOMEM;
6247                 goto out_free_hba_eq_hdl;
6248         }
6249         if (lpfc_used_cpu == NULL) {
6250                 lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t),
6251                                                 GFP_KERNEL);
6252                 if (!lpfc_used_cpu) {
6253                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6254                                         "3335 Failed allocate memory for msi-x "
6255                                         "interrupt vector mapping\n");
6256                         kfree(phba->sli4_hba.cpu_map);
6257                         rc = -ENOMEM;
6258                         goto out_free_hba_eq_hdl;
6259                 }
6260                 for (i = 0; i < lpfc_present_cpu; i++)
6261                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
6262         }
6263
6264         /*
6265          * Enable sr-iov virtual functions if supported and configured
6266          * through the module parameter.
6267          */
6268         if (phba->cfg_sriov_nr_virtfn > 0) {
6269                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6270                                                  phba->cfg_sriov_nr_virtfn);
6271                 if (rc) {
6272                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6273                                         "3020 Requested number of SR-IOV "
6274                                         "virtual functions (%d) is not "
6275                                         "supported\n",
6276                                         phba->cfg_sriov_nr_virtfn);
6277                         phba->cfg_sriov_nr_virtfn = 0;
6278                 }
6279         }
6280
6281         return 0;
6282
6283 out_free_hba_eq_hdl:
6284         kfree(phba->sli4_hba.hba_eq_hdl);
6285 out_free_fcf_rr_bmask:
6286         kfree(phba->fcf.fcf_rr_bmask);
6287 out_remove_rpi_hdrs:
6288         lpfc_sli4_remove_rpi_hdrs(phba);
6289 out_free_active_sgl:
6290         lpfc_free_active_sgl(phba);
6291 out_destroy_cq_event_pool:
6292         lpfc_sli4_cq_event_pool_destroy(phba);
6293 out_free_bsmbx:
6294         lpfc_destroy_bootstrap_mbox(phba);
6295 out_free_mem:
6296         lpfc_mem_free(phba);
6297         return rc;
6298 }
6299
6300 /**
6301  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
6302  * @phba: pointer to lpfc hba data structure.
6303  *
6304  * This routine is invoked to unset the driver internal resources set up
6305  * specific for supporting the SLI-4 HBA device it attached to.
6306  **/
6307 static void
6308 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
6309 {
6310         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6311
6312         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
6313         kfree(phba->sli4_hba.cpu_map);
6314         phba->sli4_hba.num_present_cpu = 0;
6315         phba->sli4_hba.num_online_cpu = 0;
6316         phba->sli4_hba.curr_disp_cpu = 0;
6317
6318         /* Free memory allocated for fast-path work queue handles */
6319         kfree(phba->sli4_hba.hba_eq_hdl);
6320
6321         /* Free the allocated rpi headers. */
6322         lpfc_sli4_remove_rpi_hdrs(phba);
6323         lpfc_sli4_remove_rpis(phba);
6324
6325         /* Free eligible FCF index bmask */
6326         kfree(phba->fcf.fcf_rr_bmask);
6327
6328         /* Free the ELS sgl list */
6329         lpfc_free_active_sgl(phba);
6330         lpfc_free_els_sgl_list(phba);
6331         lpfc_free_nvmet_sgl_list(phba);
6332
6333         /* Free the completion queue EQ event pool */
6334         lpfc_sli4_cq_event_release_all(phba);
6335         lpfc_sli4_cq_event_pool_destroy(phba);
6336
6337         /* Release resource identifiers. */
6338         lpfc_sli4_dealloc_resource_identifiers(phba);
6339
6340         /* Free the bsmbx region. */
6341         lpfc_destroy_bootstrap_mbox(phba);
6342
6343         /* Free the SLI Layer memory with SLI4 HBAs */
6344         lpfc_mem_free_all(phba);
6345
6346         /* Free the current connect table */
6347         list_for_each_entry_safe(conn_entry, next_conn_entry,
6348                 &phba->fcf_conn_rec_list, list) {
6349                 list_del_init(&conn_entry->list);
6350                 kfree(conn_entry);
6351         }
6352
6353         return;
6354 }
6355
6356 /**
6357  * lpfc_init_api_table_setup - Set up init api function jump table
6358  * @phba: The hba struct for which this call is being executed.
6359  * @dev_grp: The HBA PCI-Device group number.
6360  *
6361  * This routine sets up the device INIT interface API function jump table
6362  * in @phba struct.
6363  *
6364  * Returns: 0 - success, -ENODEV - failure.
6365  **/
6366 int
6367 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6368 {
6369         phba->lpfc_hba_init_link = lpfc_hba_init_link;
6370         phba->lpfc_hba_down_link = lpfc_hba_down_link;
6371         phba->lpfc_selective_reset = lpfc_selective_reset;
6372         switch (dev_grp) {
6373         case LPFC_PCI_DEV_LP:
6374                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
6375                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
6376                 phba->lpfc_stop_port = lpfc_stop_port_s3;
6377                 break;
6378         case LPFC_PCI_DEV_OC:
6379                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
6380                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
6381                 phba->lpfc_stop_port = lpfc_stop_port_s4;
6382                 break;
6383         default:
6384                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6385                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
6386                                 dev_grp);
6387                 return -ENODEV;
6388                 break;
6389         }
6390         return 0;
6391 }
6392
6393 /**
6394  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
6395  * @phba: pointer to lpfc hba data structure.
6396  *
6397  * This routine is invoked to set up the driver internal resources after the
6398  * device specific resource setup to support the HBA device it attached to.
6399  *
6400  * Return codes
6401  *      0 - successful
6402  *      other values - error
6403  **/
6404 static int
6405 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
6406 {
6407         int error;
6408
6409         /* Startup the kernel thread for this host adapter. */
6410         phba->worker_thread = kthread_run(lpfc_do_work, phba,
6411                                           "lpfc_worker_%d", phba->brd_no);
6412         if (IS_ERR(phba->worker_thread)) {
6413                 error = PTR_ERR(phba->worker_thread);
6414                 return error;
6415         }
6416
6417         /* The lpfc_wq workqueue for deferred irq use, is only used for SLI4 */
6418         if (phba->sli_rev == LPFC_SLI_REV4)
6419                 phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
6420         else
6421                 phba->wq = NULL;
6422
6423         return 0;
6424 }
6425
6426 /**
6427  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
6428  * @phba: pointer to lpfc hba data structure.
6429  *
6430  * This routine is invoked to unset the driver internal resources set up after
6431  * the device specific resource setup for supporting the HBA device it
6432  * attached to.
6433  **/
6434 static void
6435 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
6436 {
6437         if (phba->wq) {
6438                 flush_workqueue(phba->wq);
6439                 destroy_workqueue(phba->wq);
6440                 phba->wq = NULL;
6441         }
6442
6443         /* Stop kernel worker thread */
6444         if (phba->worker_thread)
6445                 kthread_stop(phba->worker_thread);
6446 }
6447
6448 /**
6449  * lpfc_free_iocb_list - Free iocb list.
6450  * @phba: pointer to lpfc hba data structure.
6451  *
6452  * This routine is invoked to free the driver's IOCB list and memory.
6453  **/
6454 void
6455 lpfc_free_iocb_list(struct lpfc_hba *phba)
6456 {
6457         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
6458
6459         spin_lock_irq(&phba->hbalock);
6460         list_for_each_entry_safe(iocbq_entry, iocbq_next,
6461                                  &phba->lpfc_iocb_list, list) {
6462                 list_del(&iocbq_entry->list);
6463                 kfree(iocbq_entry);
6464                 phba->total_iocbq_bufs--;
6465         }
6466         spin_unlock_irq(&phba->hbalock);
6467
6468         return;
6469 }
6470
6471 /**
6472  * lpfc_init_iocb_list - Allocate and initialize iocb list.
6473  * @phba: pointer to lpfc hba data structure.
6474  *
6475  * This routine is invoked to allocate and initizlize the driver's IOCB
6476  * list and set up the IOCB tag array accordingly.
6477  *
6478  * Return codes
6479  *      0 - successful
6480  *      other values - error
6481  **/
6482 int
6483 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
6484 {
6485         struct lpfc_iocbq *iocbq_entry = NULL;
6486         uint16_t iotag;
6487         int i;
6488
6489         /* Initialize and populate the iocb list per host.  */
6490         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
6491         for (i = 0; i < iocb_count; i++) {
6492                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
6493                 if (iocbq_entry == NULL) {
6494                         printk(KERN_ERR "%s: only allocated %d iocbs of "
6495                                 "expected %d count. Unloading driver.\n",
6496                                 __func__, i, LPFC_IOCB_LIST_CNT);
6497                         goto out_free_iocbq;
6498                 }
6499
6500                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
6501                 if (iotag == 0) {
6502                         kfree(iocbq_entry);
6503                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
6504                                 "Unloading driver.\n", __func__);
6505                         goto out_free_iocbq;
6506                 }
6507                 iocbq_entry->sli4_lxritag = NO_XRI;
6508                 iocbq_entry->sli4_xritag = NO_XRI;
6509
6510                 spin_lock_irq(&phba->hbalock);
6511                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
6512                 phba->total_iocbq_bufs++;
6513                 spin_unlock_irq(&phba->hbalock);
6514         }
6515
6516         return 0;
6517
6518 out_free_iocbq:
6519         lpfc_free_iocb_list(phba);
6520
6521         return -ENOMEM;
6522 }
6523
6524 /**
6525  * lpfc_free_sgl_list - Free a given sgl list.
6526  * @phba: pointer to lpfc hba data structure.
6527  * @sglq_list: pointer to the head of sgl list.
6528  *
6529  * This routine is invoked to free a give sgl list and memory.
6530  **/
6531 void
6532 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
6533 {
6534         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6535
6536         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
6537                 list_del(&sglq_entry->list);
6538                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
6539                 kfree(sglq_entry);
6540         }
6541 }
6542
6543 /**
6544  * lpfc_free_els_sgl_list - Free els sgl list.
6545  * @phba: pointer to lpfc hba data structure.
6546  *
6547  * This routine is invoked to free the driver's els sgl list and memory.
6548  **/
6549 static void
6550 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
6551 {
6552         LIST_HEAD(sglq_list);
6553
6554         /* Retrieve all els sgls from driver list */
6555         spin_lock_irq(&phba->hbalock);
6556         spin_lock(&phba->sli4_hba.sgl_list_lock);
6557         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
6558         spin_unlock(&phba->sli4_hba.sgl_list_lock);
6559         spin_unlock_irq(&phba->hbalock);
6560
6561         /* Now free the sgl list */
6562         lpfc_free_sgl_list(phba, &sglq_list);
6563 }
6564
6565 /**
6566  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
6567  * @phba: pointer to lpfc hba data structure.
6568  *
6569  * This routine is invoked to free the driver's nvmet sgl list and memory.
6570  **/
6571 static void
6572 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
6573 {
6574         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6575         LIST_HEAD(sglq_list);
6576
6577         /* Retrieve all nvmet sgls from driver list */
6578         spin_lock_irq(&phba->hbalock);
6579         spin_lock(&phba->sli4_hba.sgl_list_lock);
6580         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
6581         spin_unlock(&phba->sli4_hba.sgl_list_lock);
6582         spin_unlock_irq(&phba->hbalock);
6583
6584         /* Now free the sgl list */
6585         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
6586                 list_del(&sglq_entry->list);
6587                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
6588                 kfree(sglq_entry);
6589         }
6590
6591         /* Update the nvmet_xri_cnt to reflect no current sgls.
6592          * The next initialization cycle sets the count and allocates
6593          * the sgls over again.
6594          */
6595         phba->sli4_hba.nvmet_xri_cnt = 0;
6596 }
6597
6598 /**
6599  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
6600  * @phba: pointer to lpfc hba data structure.
6601  *
6602  * This routine is invoked to allocate the driver's active sgl memory.
6603  * This array will hold the sglq_entry's for active IOs.
6604  **/
6605 static int
6606 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
6607 {
6608         int size;
6609         size = sizeof(struct lpfc_sglq *);
6610         size *= phba->sli4_hba.max_cfg_param.max_xri;
6611
6612         phba->sli4_hba.lpfc_sglq_active_list =
6613                 kzalloc(size, GFP_KERNEL);
6614         if (!phba->sli4_hba.lpfc_sglq_active_list)
6615                 return -ENOMEM;
6616         return 0;
6617 }
6618
6619 /**
6620  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
6621  * @phba: pointer to lpfc hba data structure.
6622  *
6623  * This routine is invoked to walk through the array of active sglq entries
6624  * and free all of the resources.
6625  * This is just a place holder for now.
6626  **/
6627 static void
6628 lpfc_free_active_sgl(struct lpfc_hba *phba)
6629 {
6630         kfree(phba->sli4_hba.lpfc_sglq_active_list);
6631 }
6632
6633 /**
6634  * lpfc_init_sgl_list - Allocate and initialize sgl list.
6635  * @phba: pointer to lpfc hba data structure.
6636  *
6637  * This routine is invoked to allocate and initizlize the driver's sgl
6638  * list and set up the sgl xritag tag array accordingly.
6639  *
6640  **/
6641 static void
6642 lpfc_init_sgl_list(struct lpfc_hba *phba)
6643 {
6644         /* Initialize and populate the sglq list per host/VF. */
6645         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
6646         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
6647         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
6648         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6649
6650         /* els xri-sgl book keeping */
6651         phba->sli4_hba.els_xri_cnt = 0;
6652
6653         /* scsi xri-buffer book keeping */
6654         phba->sli4_hba.scsi_xri_cnt = 0;
6655
6656         /* nvme xri-buffer book keeping */
6657         phba->sli4_hba.nvme_xri_cnt = 0;
6658 }
6659
6660 /**
6661  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
6662  * @phba: pointer to lpfc hba data structure.
6663  *
6664  * This routine is invoked to post rpi header templates to the
6665  * port for those SLI4 ports that do not support extents.  This routine
6666  * posts a PAGE_SIZE memory region to the port to hold up to
6667  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
6668  * and should be called only when interrupts are disabled.
6669  *
6670  * Return codes
6671  *      0 - successful
6672  *      -ERROR - otherwise.
6673  **/
6674 int
6675 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
6676 {
6677         int rc = 0;
6678         struct lpfc_rpi_hdr *rpi_hdr;
6679
6680         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
6681         if (!phba->sli4_hba.rpi_hdrs_in_use)
6682                 return rc;
6683         if (phba->sli4_hba.extents_in_use)
6684                 return -EIO;
6685
6686         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
6687         if (!rpi_hdr) {
6688                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6689                                 "0391 Error during rpi post operation\n");
6690                 lpfc_sli4_remove_rpis(phba);
6691                 rc = -ENODEV;
6692         }
6693
6694         return rc;
6695 }
6696
6697 /**
6698  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
6699  * @phba: pointer to lpfc hba data structure.
6700  *
6701  * This routine is invoked to allocate a single 4KB memory region to
6702  * support rpis and stores them in the phba.  This single region
6703  * provides support for up to 64 rpis.  The region is used globally
6704  * by the device.
6705  *
6706  * Returns:
6707  *   A valid rpi hdr on success.
6708  *   A NULL pointer on any failure.
6709  **/
6710 struct lpfc_rpi_hdr *
6711 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
6712 {
6713         uint16_t rpi_limit, curr_rpi_range;
6714         struct lpfc_dmabuf *dmabuf;
6715         struct lpfc_rpi_hdr *rpi_hdr;
6716
6717         /*
6718          * If the SLI4 port supports extents, posting the rpi header isn't
6719          * required.  Set the expected maximum count and let the actual value
6720          * get set when extents are fully allocated.
6721          */
6722         if (!phba->sli4_hba.rpi_hdrs_in_use)
6723                 return NULL;
6724         if (phba->sli4_hba.extents_in_use)
6725                 return NULL;
6726
6727         /* The limit on the logical index is just the max_rpi count. */
6728         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
6729
6730         spin_lock_irq(&phba->hbalock);
6731         /*
6732          * Establish the starting RPI in this header block.  The starting
6733          * rpi is normalized to a zero base because the physical rpi is
6734          * port based.
6735          */
6736         curr_rpi_range = phba->sli4_hba.next_rpi;
6737         spin_unlock_irq(&phba->hbalock);
6738
6739         /* Reached full RPI range */
6740         if (curr_rpi_range == rpi_limit)
6741                 return NULL;
6742
6743         /*
6744          * First allocate the protocol header region for the port.  The
6745          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
6746          */
6747         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6748         if (!dmabuf)
6749                 return NULL;
6750
6751         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
6752                                            LPFC_HDR_TEMPLATE_SIZE,
6753                                            &dmabuf->phys, GFP_KERNEL);
6754         if (!dmabuf->virt) {
6755                 rpi_hdr = NULL;
6756                 goto err_free_dmabuf;
6757         }
6758
6759         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
6760                 rpi_hdr = NULL;
6761                 goto err_free_coherent;
6762         }
6763
6764         /* Save the rpi header data for cleanup later. */
6765         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
6766         if (!rpi_hdr)
6767                 goto err_free_coherent;
6768
6769         rpi_hdr->dmabuf = dmabuf;
6770         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6771         rpi_hdr->page_count = 1;
6772         spin_lock_irq(&phba->hbalock);
6773
6774         /* The rpi_hdr stores the logical index only. */
6775         rpi_hdr->start_rpi = curr_rpi_range;
6776         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
6777         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6778
6779         spin_unlock_irq(&phba->hbalock);
6780         return rpi_hdr;
6781
6782  err_free_coherent:
6783         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6784                           dmabuf->virt, dmabuf->phys);
6785  err_free_dmabuf:
6786         kfree(dmabuf);
6787         return NULL;
6788 }
6789
6790 /**
6791  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6792  * @phba: pointer to lpfc hba data structure.
6793  *
6794  * This routine is invoked to remove all memory resources allocated
6795  * to support rpis for SLI4 ports not supporting extents. This routine
6796  * presumes the caller has released all rpis consumed by fabric or port
6797  * logins and is prepared to have the header pages removed.
6798  **/
6799 void
6800 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6801 {
6802         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6803
6804         if (!phba->sli4_hba.rpi_hdrs_in_use)
6805                 goto exit;
6806
6807         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6808                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6809                 list_del(&rpi_hdr->list);
6810                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6811                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6812                 kfree(rpi_hdr->dmabuf);
6813                 kfree(rpi_hdr);
6814         }
6815  exit:
6816         /* There are no rpis available to the port now. */
6817         phba->sli4_hba.next_rpi = 0;
6818 }
6819
6820 /**
6821  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6822  * @pdev: pointer to pci device data structure.
6823  *
6824  * This routine is invoked to allocate the driver hba data structure for an
6825  * HBA device. If the allocation is successful, the phba reference to the
6826  * PCI device data structure is set.
6827  *
6828  * Return codes
6829  *      pointer to @phba - successful
6830  *      NULL - error
6831  **/
6832 static struct lpfc_hba *
6833 lpfc_hba_alloc(struct pci_dev *pdev)
6834 {
6835         struct lpfc_hba *phba;
6836
6837         /* Allocate memory for HBA structure */
6838         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6839         if (!phba) {
6840                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6841                 return NULL;
6842         }
6843
6844         /* Set reference to PCI device in HBA structure */
6845         phba->pcidev = pdev;
6846
6847         /* Assign an unused board number */
6848         phba->brd_no = lpfc_get_instance();
6849         if (phba->brd_no < 0) {
6850                 kfree(phba);
6851                 return NULL;
6852         }
6853         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
6854
6855         spin_lock_init(&phba->ct_ev_lock);
6856         INIT_LIST_HEAD(&phba->ct_ev_waiters);
6857
6858         return phba;
6859 }
6860
6861 /**
6862  * lpfc_hba_free - Free driver hba data structure with a device.
6863  * @phba: pointer to lpfc hba data structure.
6864  *
6865  * This routine is invoked to free the driver hba data structure with an
6866  * HBA device.
6867  **/
6868 static void
6869 lpfc_hba_free(struct lpfc_hba *phba)
6870 {
6871         /* Release the driver assigned board number */
6872         idr_remove(&lpfc_hba_index, phba->brd_no);
6873
6874         /* Free memory allocated with sli3 rings */
6875         kfree(phba->sli.sli3_ring);
6876         phba->sli.sli3_ring = NULL;
6877
6878         kfree(phba);
6879         return;
6880 }
6881
6882 /**
6883  * lpfc_create_shost - Create hba physical port with associated scsi host.
6884  * @phba: pointer to lpfc hba data structure.
6885  *
6886  * This routine is invoked to create HBA physical port and associate a SCSI
6887  * host with it.
6888  *
6889  * Return codes
6890  *      0 - successful
6891  *      other values - error
6892  **/
6893 static int
6894 lpfc_create_shost(struct lpfc_hba *phba)
6895 {
6896         struct lpfc_vport *vport;
6897         struct Scsi_Host  *shost;
6898
6899         /* Initialize HBA FC structure */
6900         phba->fc_edtov = FF_DEF_EDTOV;
6901         phba->fc_ratov = FF_DEF_RATOV;
6902         phba->fc_altov = FF_DEF_ALTOV;
6903         phba->fc_arbtov = FF_DEF_ARBTOV;
6904
6905         atomic_set(&phba->sdev_cnt, 0);
6906         atomic_set(&phba->fc4ScsiInputRequests, 0);
6907         atomic_set(&phba->fc4ScsiOutputRequests, 0);
6908         atomic_set(&phba->fc4ScsiControlRequests, 0);
6909         atomic_set(&phba->fc4ScsiIoCmpls, 0);
6910         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6911         if (!vport)
6912                 return -ENODEV;
6913
6914         shost = lpfc_shost_from_vport(vport);
6915         phba->pport = vport;
6916
6917         if (phba->nvmet_support) {
6918                 /* Only 1 vport (pport) will support NVME target */
6919                 if (phba->txrdy_payload_pool == NULL) {
6920                         phba->txrdy_payload_pool = dma_pool_create(
6921                                 "txrdy_pool", &phba->pcidev->dev,
6922                                 TXRDY_PAYLOAD_LEN, 16, 0);
6923                         if (phba->txrdy_payload_pool) {
6924                                 phba->targetport = NULL;
6925                                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
6926                                 lpfc_printf_log(phba, KERN_INFO,
6927                                                 LOG_INIT | LOG_NVME_DISC,
6928                                                 "6076 NVME Target Found\n");
6929                         }
6930                 }
6931         }
6932
6933         lpfc_debugfs_initialize(vport);
6934         /* Put reference to SCSI host to driver's device private data */
6935         pci_set_drvdata(phba->pcidev, shost);
6936
6937         /*
6938          * At this point we are fully registered with PSA. In addition,
6939          * any initial discovery should be completed.
6940          */
6941         vport->load_flag |= FC_ALLOW_FDMI;
6942         if (phba->cfg_enable_SmartSAN ||
6943             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
6944
6945                 /* Setup appropriate attribute masks */
6946                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
6947                 if (phba->cfg_enable_SmartSAN)
6948                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
6949                 else
6950                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
6951         }
6952         return 0;
6953 }
6954
6955 /**
6956  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6957  * @phba: pointer to lpfc hba data structure.
6958  *
6959  * This routine is invoked to destroy HBA physical port and the associated
6960  * SCSI host.
6961  **/
6962 static void
6963 lpfc_destroy_shost(struct lpfc_hba *phba)
6964 {
6965         struct lpfc_vport *vport = phba->pport;
6966
6967         /* Destroy physical port that associated with the SCSI host */
6968         destroy_port(vport);
6969
6970         return;
6971 }
6972
6973 /**
6974  * lpfc_setup_bg - Setup Block guard structures and debug areas.
6975  * @phba: pointer to lpfc hba data structure.
6976  * @shost: the shost to be used to detect Block guard settings.
6977  *
6978  * This routine sets up the local Block guard protocol settings for @shost.
6979  * This routine also allocates memory for debugging bg buffers.
6980  **/
6981 static void
6982 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6983 {
6984         uint32_t old_mask;
6985         uint32_t old_guard;
6986
6987         int pagecnt = 10;
6988         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
6989                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6990                                 "1478 Registering BlockGuard with the "
6991                                 "SCSI layer\n");
6992
6993                 old_mask = phba->cfg_prot_mask;
6994                 old_guard = phba->cfg_prot_guard;
6995
6996                 /* Only allow supported values */
6997                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6998                         SHOST_DIX_TYPE0_PROTECTION |
6999                         SHOST_DIX_TYPE1_PROTECTION);
7000                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
7001                                          SHOST_DIX_GUARD_CRC);
7002
7003                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
7004                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
7005                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
7006
7007                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7008                         if ((old_mask != phba->cfg_prot_mask) ||
7009                                 (old_guard != phba->cfg_prot_guard))
7010                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7011                                         "1475 Registering BlockGuard with the "
7012                                         "SCSI layer: mask %d  guard %d\n",
7013                                         phba->cfg_prot_mask,
7014                                         phba->cfg_prot_guard);
7015
7016                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
7017                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
7018                 } else
7019                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7020                                 "1479 Not Registering BlockGuard with the SCSI "
7021                                 "layer, Bad protection parameters: %d %d\n",
7022                                 old_mask, old_guard);
7023         }
7024
7025         if (!_dump_buf_data) {
7026                 while (pagecnt) {
7027                         spin_lock_init(&_dump_buf_lock);
7028                         _dump_buf_data =
7029                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
7030                         if (_dump_buf_data) {
7031                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7032                                         "9043 BLKGRD: allocated %d pages for "
7033                                        "_dump_buf_data at 0x%p\n",
7034                                        (1 << pagecnt), _dump_buf_data);
7035                                 _dump_buf_data_order = pagecnt;
7036                                 memset(_dump_buf_data, 0,
7037                                        ((1 << PAGE_SHIFT) << pagecnt));
7038                                 break;
7039                         } else
7040                                 --pagecnt;
7041                 }
7042                 if (!_dump_buf_data_order)
7043                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7044                                 "9044 BLKGRD: ERROR unable to allocate "
7045                                "memory for hexdump\n");
7046         } else
7047                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7048                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
7049                        "\n", _dump_buf_data);
7050         if (!_dump_buf_dif) {
7051                 while (pagecnt) {
7052                         _dump_buf_dif =
7053                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
7054                         if (_dump_buf_dif) {
7055                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7056                                         "9046 BLKGRD: allocated %d pages for "
7057                                        "_dump_buf_dif at 0x%p\n",
7058                                        (1 << pagecnt), _dump_buf_dif);
7059                                 _dump_buf_dif_order = pagecnt;
7060                                 memset(_dump_buf_dif, 0,
7061                                        ((1 << PAGE_SHIFT) << pagecnt));
7062                                 break;
7063                         } else
7064                                 --pagecnt;
7065                 }
7066                 if (!_dump_buf_dif_order)
7067                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7068                         "9047 BLKGRD: ERROR unable to allocate "
7069                                "memory for hexdump\n");
7070         } else
7071                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7072                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
7073                        _dump_buf_dif);
7074 }
7075
7076 /**
7077  * lpfc_post_init_setup - Perform necessary device post initialization setup.
7078  * @phba: pointer to lpfc hba data structure.
7079  *
7080  * This routine is invoked to perform all the necessary post initialization
7081  * setup for the device.
7082  **/
7083 static void
7084 lpfc_post_init_setup(struct lpfc_hba *phba)
7085 {
7086         struct Scsi_Host  *shost;
7087         struct lpfc_adapter_event_header adapter_event;
7088
7089         /* Get the default values for Model Name and Description */
7090         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
7091
7092         /*
7093          * hba setup may have changed the hba_queue_depth so we need to
7094          * adjust the value of can_queue.
7095          */
7096         shost = pci_get_drvdata(phba->pcidev);
7097         shost->can_queue = phba->cfg_hba_queue_depth - 10;
7098         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
7099                 lpfc_setup_bg(phba, shost);
7100
7101         lpfc_host_attrib_init(shost);
7102
7103         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7104                 spin_lock_irq(shost->host_lock);
7105                 lpfc_poll_start_timer(phba);
7106                 spin_unlock_irq(shost->host_lock);
7107         }
7108
7109         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7110                         "0428 Perform SCSI scan\n");
7111         /* Send board arrival event to upper layer */
7112         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
7113         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
7114         fc_host_post_vendor_event(shost, fc_get_event_number(),
7115                                   sizeof(adapter_event),
7116                                   (char *) &adapter_event,
7117                                   LPFC_NL_VENDOR_ID);
7118         return;
7119 }
7120
7121 /**
7122  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
7123  * @phba: pointer to lpfc hba data structure.
7124  *
7125  * This routine is invoked to set up the PCI device memory space for device
7126  * with SLI-3 interface spec.
7127  *
7128  * Return codes
7129  *      0 - successful
7130  *      other values - error
7131  **/
7132 static int
7133 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
7134 {
7135         struct pci_dev *pdev;
7136         unsigned long bar0map_len, bar2map_len;
7137         int i, hbq_count;
7138         void *ptr;
7139         int error = -ENODEV;
7140
7141         /* Obtain PCI device reference */
7142         if (!phba->pcidev)
7143                 return error;
7144         else
7145                 pdev = phba->pcidev;
7146
7147         /* Set the device DMA mask size */
7148         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7149          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7150                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7151                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
7152                         return error;
7153                 }
7154         }
7155
7156         /* Get the bus address of Bar0 and Bar2 and the number of bytes
7157          * required by each mapping.
7158          */
7159         phba->pci_bar0_map = pci_resource_start(pdev, 0);
7160         bar0map_len = pci_resource_len(pdev, 0);
7161
7162         phba->pci_bar2_map = pci_resource_start(pdev, 2);
7163         bar2map_len = pci_resource_len(pdev, 2);
7164
7165         /* Map HBA SLIM to a kernel virtual address. */
7166         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
7167         if (!phba->slim_memmap_p) {
7168                 dev_printk(KERN_ERR, &pdev->dev,
7169                            "ioremap failed for SLIM memory.\n");
7170                 goto out;
7171         }
7172
7173         /* Map HBA Control Registers to a kernel virtual address. */
7174         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
7175         if (!phba->ctrl_regs_memmap_p) {
7176                 dev_printk(KERN_ERR, &pdev->dev,
7177                            "ioremap failed for HBA control registers.\n");
7178                 goto out_iounmap_slim;
7179         }
7180
7181         /* Allocate memory for SLI-2 structures */
7182         phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7183                                                 &phba->slim2p.phys, GFP_KERNEL);
7184         if (!phba->slim2p.virt)
7185                 goto out_iounmap;
7186
7187         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7188         phba->mbox_ext = (phba->slim2p.virt +
7189                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7190         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7191         phba->IOCBs = (phba->slim2p.virt +
7192                        offsetof(struct lpfc_sli2_slim, IOCBs));
7193
7194         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7195                                                  lpfc_sli_hbq_size(),
7196                                                  &phba->hbqslimp.phys,
7197                                                  GFP_KERNEL);
7198         if (!phba->hbqslimp.virt)
7199                 goto out_free_slim;
7200
7201         hbq_count = lpfc_sli_hbq_count();
7202         ptr = phba->hbqslimp.virt;
7203         for (i = 0; i < hbq_count; ++i) {
7204                 phba->hbqs[i].hbq_virt = ptr;
7205                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7206                 ptr += (lpfc_hbq_defs[i]->entry_count *
7207                         sizeof(struct lpfc_hbq_entry));
7208         }
7209         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7210         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7211
7212         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7213
7214         phba->MBslimaddr = phba->slim_memmap_p;
7215         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7216         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7217         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7218         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7219
7220         return 0;
7221
7222 out_free_slim:
7223         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7224                           phba->slim2p.virt, phba->slim2p.phys);
7225 out_iounmap:
7226         iounmap(phba->ctrl_regs_memmap_p);
7227 out_iounmap_slim:
7228         iounmap(phba->slim_memmap_p);
7229 out:
7230         return error;
7231 }
7232
7233 /**
7234  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7235  * @phba: pointer to lpfc hba data structure.
7236  *
7237  * This routine is invoked to unset the PCI device memory space for device
7238  * with SLI-3 interface spec.
7239  **/
7240 static void
7241 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7242 {
7243         struct pci_dev *pdev;
7244
7245         /* Obtain PCI device reference */
7246         if (!phba->pcidev)
7247                 return;
7248         else
7249                 pdev = phba->pcidev;
7250
7251         /* Free coherent DMA memory allocated */
7252         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7253                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7254         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7255                           phba->slim2p.virt, phba->slim2p.phys);
7256
7257         /* I/O memory unmap */
7258         iounmap(phba->ctrl_regs_memmap_p);
7259         iounmap(phba->slim_memmap_p);
7260
7261         return;
7262 }
7263
7264 /**
7265  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7266  * @phba: pointer to lpfc hba data structure.
7267  *
7268  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
7269  * done and check status.
7270  *
7271  * Return 0 if successful, otherwise -ENODEV.
7272  **/
7273 int
7274 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
7275 {
7276         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
7277         struct lpfc_register reg_data;
7278         int i, port_error = 0;
7279         uint32_t if_type;
7280
7281         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
7282         memset(&reg_data, 0, sizeof(reg_data));
7283         if (!phba->sli4_hba.PSMPHRregaddr)
7284                 return -ENODEV;
7285
7286         /* Wait up to 30 seconds for the SLI Port POST done and ready */
7287         for (i = 0; i < 3000; i++) {
7288                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
7289                         &portsmphr_reg.word0) ||
7290                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
7291                         /* Port has a fatal POST error, break out */
7292                         port_error = -ENODEV;
7293                         break;
7294                 }
7295                 if (LPFC_POST_STAGE_PORT_READY ==
7296                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
7297                         break;
7298                 msleep(10);
7299         }
7300
7301         /*
7302          * If there was a port error during POST, then don't proceed with
7303          * other register reads as the data may not be valid.  Just exit.
7304          */
7305         if (port_error) {
7306                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7307                         "1408 Port Failed POST - portsmphr=0x%x, "
7308                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
7309                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
7310                         portsmphr_reg.word0,
7311                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
7312                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
7313                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
7314                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
7315                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
7316                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
7317                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
7318                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
7319         } else {
7320                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7321                                 "2534 Device Info: SLIFamily=0x%x, "
7322                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
7323                                 "SLIHint_2=0x%x, FT=0x%x\n",
7324                                 bf_get(lpfc_sli_intf_sli_family,
7325                                        &phba->sli4_hba.sli_intf),
7326                                 bf_get(lpfc_sli_intf_slirev,
7327                                        &phba->sli4_hba.sli_intf),
7328                                 bf_get(lpfc_sli_intf_if_type,
7329                                        &phba->sli4_hba.sli_intf),
7330                                 bf_get(lpfc_sli_intf_sli_hint1,
7331                                        &phba->sli4_hba.sli_intf),
7332                                 bf_get(lpfc_sli_intf_sli_hint2,
7333                                        &phba->sli4_hba.sli_intf),
7334                                 bf_get(lpfc_sli_intf_func_type,
7335                                        &phba->sli4_hba.sli_intf));
7336                 /*
7337                  * Check for other Port errors during the initialization
7338                  * process.  Fail the load if the port did not come up
7339                  * correctly.
7340                  */
7341                 if_type = bf_get(lpfc_sli_intf_if_type,
7342                                  &phba->sli4_hba.sli_intf);
7343                 switch (if_type) {
7344                 case LPFC_SLI_INTF_IF_TYPE_0:
7345                         phba->sli4_hba.ue_mask_lo =
7346                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
7347                         phba->sli4_hba.ue_mask_hi =
7348                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
7349                         uerrlo_reg.word0 =
7350                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
7351                         uerrhi_reg.word0 =
7352                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
7353                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
7354                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
7355                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7356                                                 "1422 Unrecoverable Error "
7357                                                 "Detected during POST "
7358                                                 "uerr_lo_reg=0x%x, "
7359                                                 "uerr_hi_reg=0x%x, "
7360                                                 "ue_mask_lo_reg=0x%x, "
7361                                                 "ue_mask_hi_reg=0x%x\n",
7362                                                 uerrlo_reg.word0,
7363                                                 uerrhi_reg.word0,
7364                                                 phba->sli4_hba.ue_mask_lo,
7365                                                 phba->sli4_hba.ue_mask_hi);
7366                                 port_error = -ENODEV;
7367                         }
7368                         break;
7369                 case LPFC_SLI_INTF_IF_TYPE_2:
7370                 case LPFC_SLI_INTF_IF_TYPE_6:
7371                         /* Final checks.  The port status should be clean. */
7372                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7373                                 &reg_data.word0) ||
7374                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
7375                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
7376                                 phba->work_status[0] =
7377                                         readl(phba->sli4_hba.u.if_type2.
7378                                               ERR1regaddr);
7379                                 phba->work_status[1] =
7380                                         readl(phba->sli4_hba.u.if_type2.
7381                                               ERR2regaddr);
7382                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7383                                         "2888 Unrecoverable port error "
7384                                         "following POST: port status reg "
7385                                         "0x%x, port_smphr reg 0x%x, "
7386                                         "error 1=0x%x, error 2=0x%x\n",
7387                                         reg_data.word0,
7388                                         portsmphr_reg.word0,
7389                                         phba->work_status[0],
7390                                         phba->work_status[1]);
7391                                 port_error = -ENODEV;
7392                         }
7393                         break;
7394                 case LPFC_SLI_INTF_IF_TYPE_1:
7395                 default:
7396                         break;
7397                 }
7398         }
7399         return port_error;
7400 }
7401
7402 /**
7403  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
7404  * @phba: pointer to lpfc hba data structure.
7405  * @if_type:  The SLI4 interface type getting configured.
7406  *
7407  * This routine is invoked to set up SLI4 BAR0 PCI config space register
7408  * memory map.
7409  **/
7410 static void
7411 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7412 {
7413         switch (if_type) {
7414         case LPFC_SLI_INTF_IF_TYPE_0:
7415                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
7416                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
7417                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
7418                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
7419                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
7420                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
7421                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
7422                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
7423                 phba->sli4_hba.SLIINTFregaddr =
7424                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7425                 break;
7426         case LPFC_SLI_INTF_IF_TYPE_2:
7427                 phba->sli4_hba.u.if_type2.EQDregaddr =
7428                         phba->sli4_hba.conf_regs_memmap_p +
7429                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
7430                 phba->sli4_hba.u.if_type2.ERR1regaddr =
7431                         phba->sli4_hba.conf_regs_memmap_p +
7432                                                 LPFC_CTL_PORT_ER1_OFFSET;
7433                 phba->sli4_hba.u.if_type2.ERR2regaddr =
7434                         phba->sli4_hba.conf_regs_memmap_p +
7435                                                 LPFC_CTL_PORT_ER2_OFFSET;
7436                 phba->sli4_hba.u.if_type2.CTRLregaddr =
7437                         phba->sli4_hba.conf_regs_memmap_p +
7438                                                 LPFC_CTL_PORT_CTL_OFFSET;
7439                 phba->sli4_hba.u.if_type2.STATUSregaddr =
7440                         phba->sli4_hba.conf_regs_memmap_p +
7441                                                 LPFC_CTL_PORT_STA_OFFSET;
7442                 phba->sli4_hba.SLIINTFregaddr =
7443                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7444                 phba->sli4_hba.PSMPHRregaddr =
7445                         phba->sli4_hba.conf_regs_memmap_p +
7446                                                 LPFC_CTL_PORT_SEM_OFFSET;
7447                 phba->sli4_hba.RQDBregaddr =
7448                         phba->sli4_hba.conf_regs_memmap_p +
7449                                                 LPFC_ULP0_RQ_DOORBELL;
7450                 phba->sli4_hba.WQDBregaddr =
7451                         phba->sli4_hba.conf_regs_memmap_p +
7452                                                 LPFC_ULP0_WQ_DOORBELL;
7453                 phba->sli4_hba.CQDBregaddr =
7454                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
7455                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
7456                 phba->sli4_hba.MQDBregaddr =
7457                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
7458                 phba->sli4_hba.BMBXregaddr =
7459                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
7460                 break;
7461         case LPFC_SLI_INTF_IF_TYPE_6:
7462                 phba->sli4_hba.u.if_type2.EQDregaddr =
7463                         phba->sli4_hba.conf_regs_memmap_p +
7464                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
7465                 phba->sli4_hba.u.if_type2.ERR1regaddr =
7466                         phba->sli4_hba.conf_regs_memmap_p +
7467                                                 LPFC_CTL_PORT_ER1_OFFSET;
7468                 phba->sli4_hba.u.if_type2.ERR2regaddr =
7469                         phba->sli4_hba.conf_regs_memmap_p +
7470                                                 LPFC_CTL_PORT_ER2_OFFSET;
7471                 phba->sli4_hba.u.if_type2.CTRLregaddr =
7472                         phba->sli4_hba.conf_regs_memmap_p +
7473                                                 LPFC_CTL_PORT_CTL_OFFSET;
7474                 phba->sli4_hba.u.if_type2.STATUSregaddr =
7475                         phba->sli4_hba.conf_regs_memmap_p +
7476                                                 LPFC_CTL_PORT_STA_OFFSET;
7477                 phba->sli4_hba.PSMPHRregaddr =
7478                         phba->sli4_hba.conf_regs_memmap_p +
7479                                                 LPFC_CTL_PORT_SEM_OFFSET;
7480                 phba->sli4_hba.BMBXregaddr =
7481                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
7482                 break;
7483         case LPFC_SLI_INTF_IF_TYPE_1:
7484         default:
7485                 dev_printk(KERN_ERR, &phba->pcidev->dev,
7486                            "FATAL - unsupported SLI4 interface type - %d\n",
7487                            if_type);
7488                 break;
7489         }
7490 }
7491
7492 /**
7493  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
7494  * @phba: pointer to lpfc hba data structure.
7495  *
7496  * This routine is invoked to set up SLI4 BAR1 register memory map.
7497  **/
7498 static void
7499 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7500 {
7501         switch (if_type) {
7502         case LPFC_SLI_INTF_IF_TYPE_0:
7503                 phba->sli4_hba.PSMPHRregaddr =
7504                         phba->sli4_hba.ctrl_regs_memmap_p +
7505                         LPFC_SLIPORT_IF0_SMPHR;
7506                 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7507                         LPFC_HST_ISR0;
7508                 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7509                         LPFC_HST_IMR0;
7510                 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7511                         LPFC_HST_ISCR0;
7512                 break;
7513         case LPFC_SLI_INTF_IF_TYPE_6:
7514                 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7515                         LPFC_IF6_RQ_DOORBELL;
7516                 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7517                         LPFC_IF6_WQ_DOORBELL;
7518                 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7519                         LPFC_IF6_CQ_DOORBELL;
7520                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7521                         LPFC_IF6_EQ_DOORBELL;
7522                 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7523                         LPFC_IF6_MQ_DOORBELL;
7524                 break;
7525         case LPFC_SLI_INTF_IF_TYPE_2:
7526         case LPFC_SLI_INTF_IF_TYPE_1:
7527         default:
7528                 dev_err(&phba->pcidev->dev,
7529                            "FATAL - unsupported SLI4 interface type - %d\n",
7530                            if_type);
7531                 break;
7532         }
7533 }
7534
7535 /**
7536  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
7537  * @phba: pointer to lpfc hba data structure.
7538  * @vf: virtual function number
7539  *
7540  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
7541  * based on the given viftual function number, @vf.
7542  *
7543  * Return 0 if successful, otherwise -ENODEV.
7544  **/
7545 static int
7546 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
7547 {
7548         if (vf > LPFC_VIR_FUNC_MAX)
7549                 return -ENODEV;
7550
7551         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7552                                 vf * LPFC_VFR_PAGE_SIZE +
7553                                         LPFC_ULP0_RQ_DOORBELL);
7554         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7555                                 vf * LPFC_VFR_PAGE_SIZE +
7556                                         LPFC_ULP0_WQ_DOORBELL);
7557         phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7558                                 vf * LPFC_VFR_PAGE_SIZE +
7559                                         LPFC_EQCQ_DOORBELL);
7560         phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
7561         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7562                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
7563         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7564                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
7565         return 0;
7566 }
7567
7568 /**
7569  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
7570  * @phba: pointer to lpfc hba data structure.
7571  *
7572  * This routine is invoked to create the bootstrap mailbox
7573  * region consistent with the SLI-4 interface spec.  This
7574  * routine allocates all memory necessary to communicate
7575  * mailbox commands to the port and sets up all alignment
7576  * needs.  No locks are expected to be held when calling
7577  * this routine.
7578  *
7579  * Return codes
7580  *      0 - successful
7581  *      -ENOMEM - could not allocated memory.
7582  **/
7583 static int
7584 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
7585 {
7586         uint32_t bmbx_size;
7587         struct lpfc_dmabuf *dmabuf;
7588         struct dma_address *dma_address;
7589         uint32_t pa_addr;
7590         uint64_t phys_addr;
7591
7592         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7593         if (!dmabuf)
7594                 return -ENOMEM;
7595
7596         /*
7597          * The bootstrap mailbox region is comprised of 2 parts
7598          * plus an alignment restriction of 16 bytes.
7599          */
7600         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
7601         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
7602                                            &dmabuf->phys, GFP_KERNEL);
7603         if (!dmabuf->virt) {
7604                 kfree(dmabuf);
7605                 return -ENOMEM;
7606         }
7607
7608         /*
7609          * Initialize the bootstrap mailbox pointers now so that the register
7610          * operations are simple later.  The mailbox dma address is required
7611          * to be 16-byte aligned.  Also align the virtual memory as each
7612          * maibox is copied into the bmbx mailbox region before issuing the
7613          * command to the port.
7614          */
7615         phba->sli4_hba.bmbx.dmabuf = dmabuf;
7616         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
7617
7618         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
7619                                               LPFC_ALIGN_16_BYTE);
7620         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
7621                                               LPFC_ALIGN_16_BYTE);
7622
7623         /*
7624          * Set the high and low physical addresses now.  The SLI4 alignment
7625          * requirement is 16 bytes and the mailbox is posted to the port
7626          * as two 30-bit addresses.  The other data is a bit marking whether
7627          * the 30-bit address is the high or low address.
7628          * Upcast bmbx aphys to 64bits so shift instruction compiles
7629          * clean on 32 bit machines.
7630          */
7631         dma_address = &phba->sli4_hba.bmbx.dma_address;
7632         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
7633         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
7634         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
7635                                            LPFC_BMBX_BIT1_ADDR_HI);
7636
7637         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
7638         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
7639                                            LPFC_BMBX_BIT1_ADDR_LO);
7640         return 0;
7641 }
7642
7643 /**
7644  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
7645  * @phba: pointer to lpfc hba data structure.
7646  *
7647  * This routine is invoked to teardown the bootstrap mailbox
7648  * region and release all host resources. This routine requires
7649  * the caller to ensure all mailbox commands recovered, no
7650  * additional mailbox comands are sent, and interrupts are disabled
7651  * before calling this routine.
7652  *
7653  **/
7654 static void
7655 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
7656 {
7657         dma_free_coherent(&phba->pcidev->dev,
7658                           phba->sli4_hba.bmbx.bmbx_size,
7659                           phba->sli4_hba.bmbx.dmabuf->virt,
7660                           phba->sli4_hba.bmbx.dmabuf->phys);
7661
7662         kfree(phba->sli4_hba.bmbx.dmabuf);
7663         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
7664 }
7665
7666 /**
7667  * lpfc_sli4_read_config - Get the config parameters.
7668  * @phba: pointer to lpfc hba data structure.
7669  *
7670  * This routine is invoked to read the configuration parameters from the HBA.
7671  * The configuration parameters are used to set the base and maximum values
7672  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
7673  * allocation for the port.
7674  *
7675  * Return codes
7676  *      0 - successful
7677  *      -ENOMEM - No available memory
7678  *      -EIO - The mailbox failed to complete successfully.
7679  **/
7680 int
7681 lpfc_sli4_read_config(struct lpfc_hba *phba)
7682 {
7683         LPFC_MBOXQ_t *pmb;
7684         struct lpfc_mbx_read_config *rd_config;
7685         union  lpfc_sli4_cfg_shdr *shdr;
7686         uint32_t shdr_status, shdr_add_status;
7687         struct lpfc_mbx_get_func_cfg *get_func_cfg;
7688         struct lpfc_rsrc_desc_fcfcoe *desc;
7689         char *pdesc_0;
7690         uint16_t forced_link_speed;
7691         uint32_t if_type;
7692         int length, i, rc = 0, rc2;
7693
7694         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7695         if (!pmb) {
7696                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7697                                 "2011 Unable to allocate memory for issuing "
7698                                 "SLI_CONFIG_SPECIAL mailbox command\n");
7699                 return -ENOMEM;
7700         }
7701
7702         lpfc_read_config(phba, pmb);
7703
7704         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7705         if (rc != MBX_SUCCESS) {
7706                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7707                         "2012 Mailbox failed , mbxCmd x%x "
7708                         "READ_CONFIG, mbxStatus x%x\n",
7709                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
7710                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
7711                 rc = -EIO;
7712         } else {
7713                 rd_config = &pmb->u.mqe.un.rd_config;
7714                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
7715                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
7716                         phba->sli4_hba.lnk_info.lnk_tp =
7717                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
7718                         phba->sli4_hba.lnk_info.lnk_no =
7719                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
7720                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7721                                         "3081 lnk_type:%d, lnk_numb:%d\n",
7722                                         phba->sli4_hba.lnk_info.lnk_tp,
7723                                         phba->sli4_hba.lnk_info.lnk_no);
7724                 } else
7725                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
7726                                         "3082 Mailbox (x%x) returned ldv:x0\n",
7727                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
7728                 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
7729                         phba->bbcredit_support = 1;
7730                         phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
7731                 }
7732
7733                 phba->sli4_hba.extents_in_use =
7734                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
7735                 phba->sli4_hba.max_cfg_param.max_xri =
7736                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
7737                 phba->sli4_hba.max_cfg_param.xri_base =
7738                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
7739                 phba->sli4_hba.max_cfg_param.max_vpi =
7740                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
7741                 /* Limit the max we support */
7742                 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
7743                         phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
7744                 phba->sli4_hba.max_cfg_param.vpi_base =
7745                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
7746                 phba->sli4_hba.max_cfg_param.max_rpi =
7747                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
7748                 phba->sli4_hba.max_cfg_param.rpi_base =
7749                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
7750                 phba->sli4_hba.max_cfg_param.max_vfi =
7751                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
7752                 phba->sli4_hba.max_cfg_param.vfi_base =
7753                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
7754                 phba->sli4_hba.max_cfg_param.max_fcfi =
7755                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
7756                 phba->sli4_hba.max_cfg_param.max_eq =
7757                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
7758                 phba->sli4_hba.max_cfg_param.max_rq =
7759                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
7760                 phba->sli4_hba.max_cfg_param.max_wq =
7761                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
7762                 phba->sli4_hba.max_cfg_param.max_cq =
7763                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
7764                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
7765                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
7766                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
7767                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
7768                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
7769                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
7770                 phba->max_vports = phba->max_vpi;
7771                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7772                                 "2003 cfg params Extents? %d "
7773                                 "XRI(B:%d M:%d), "
7774                                 "VPI(B:%d M:%d) "
7775                                 "VFI(B:%d M:%d) "
7776                                 "RPI(B:%d M:%d) "
7777                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n",
7778                                 phba->sli4_hba.extents_in_use,
7779                                 phba->sli4_hba.max_cfg_param.xri_base,
7780                                 phba->sli4_hba.max_cfg_param.max_xri,
7781                                 phba->sli4_hba.max_cfg_param.vpi_base,
7782                                 phba->sli4_hba.max_cfg_param.max_vpi,
7783                                 phba->sli4_hba.max_cfg_param.vfi_base,
7784                                 phba->sli4_hba.max_cfg_param.max_vfi,
7785                                 phba->sli4_hba.max_cfg_param.rpi_base,
7786                                 phba->sli4_hba.max_cfg_param.max_rpi,
7787                                 phba->sli4_hba.max_cfg_param.max_fcfi,
7788                                 phba->sli4_hba.max_cfg_param.max_eq,
7789                                 phba->sli4_hba.max_cfg_param.max_cq,
7790                                 phba->sli4_hba.max_cfg_param.max_wq,
7791                                 phba->sli4_hba.max_cfg_param.max_rq);
7792
7793                 /*
7794                  * Calculate NVME queue resources based on how
7795                  * many WQ/CQs are available.
7796                  */
7797                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
7798                         length = phba->sli4_hba.max_cfg_param.max_wq;
7799                         if (phba->sli4_hba.max_cfg_param.max_cq <
7800                             phba->sli4_hba.max_cfg_param.max_wq)
7801                                 length = phba->sli4_hba.max_cfg_param.max_cq;
7802
7803                         /*
7804                          * Whats left after this can go toward NVME.
7805                          * The minus 6 accounts for ELS, NVME LS, MBOX
7806                          * fof plus a couple extra. When configured for
7807                          * NVMET, FCP io channel WQs are not created.
7808                          */
7809                         length -= 6;
7810                         if (!phba->nvmet_support)
7811                                 length -= phba->cfg_fcp_io_channel;
7812
7813                         if (phba->cfg_nvme_io_channel > length) {
7814                                 lpfc_printf_log(
7815                                         phba, KERN_ERR, LOG_SLI,
7816                                         "2005 Reducing NVME IO channel to %d: "
7817                                         "WQ %d CQ %d NVMEIO %d FCPIO %d\n",
7818                                         length,
7819                                         phba->sli4_hba.max_cfg_param.max_wq,
7820                                         phba->sli4_hba.max_cfg_param.max_cq,
7821                                         phba->cfg_nvme_io_channel,
7822                                         phba->cfg_fcp_io_channel);
7823
7824                                 phba->cfg_nvme_io_channel = length;
7825                         }
7826                 }
7827         }
7828
7829         if (rc)
7830                 goto read_cfg_out;
7831
7832         /* Update link speed if forced link speed is supported */
7833         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7834         if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
7835                 forced_link_speed =
7836                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
7837                 if (forced_link_speed) {
7838                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
7839
7840                         switch (forced_link_speed) {
7841                         case LINK_SPEED_1G:
7842                                 phba->cfg_link_speed =
7843                                         LPFC_USER_LINK_SPEED_1G;
7844                                 break;
7845                         case LINK_SPEED_2G:
7846                                 phba->cfg_link_speed =
7847                                         LPFC_USER_LINK_SPEED_2G;
7848                                 break;
7849                         case LINK_SPEED_4G:
7850                                 phba->cfg_link_speed =
7851                                         LPFC_USER_LINK_SPEED_4G;
7852                                 break;
7853                         case LINK_SPEED_8G:
7854                                 phba->cfg_link_speed =
7855                                         LPFC_USER_LINK_SPEED_8G;
7856                                 break;
7857                         case LINK_SPEED_10G:
7858                                 phba->cfg_link_speed =
7859                                         LPFC_USER_LINK_SPEED_10G;
7860                                 break;
7861                         case LINK_SPEED_16G:
7862                                 phba->cfg_link_speed =
7863                                         LPFC_USER_LINK_SPEED_16G;
7864                                 break;
7865                         case LINK_SPEED_32G:
7866                                 phba->cfg_link_speed =
7867                                         LPFC_USER_LINK_SPEED_32G;
7868                                 break;
7869                         case LINK_SPEED_64G:
7870                                 phba->cfg_link_speed =
7871                                         LPFC_USER_LINK_SPEED_64G;
7872                                 break;
7873                         case 0xffff:
7874                                 phba->cfg_link_speed =
7875                                         LPFC_USER_LINK_SPEED_AUTO;
7876                                 break;
7877                         default:
7878                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7879                                                 "0047 Unrecognized link "
7880                                                 "speed : %d\n",
7881                                                 forced_link_speed);
7882                                 phba->cfg_link_speed =
7883                                         LPFC_USER_LINK_SPEED_AUTO;
7884                         }
7885                 }
7886         }
7887
7888         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
7889         length = phba->sli4_hba.max_cfg_param.max_xri -
7890                         lpfc_sli4_get_els_iocb_cnt(phba);
7891         if (phba->cfg_hba_queue_depth > length) {
7892                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7893                                 "3361 HBA queue depth changed from %d to %d\n",
7894                                 phba->cfg_hba_queue_depth, length);
7895                 phba->cfg_hba_queue_depth = length;
7896         }
7897
7898         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
7899             LPFC_SLI_INTF_IF_TYPE_2)
7900                 goto read_cfg_out;
7901
7902         /* get the pf# and vf# for SLI4 if_type 2 port */
7903         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
7904                   sizeof(struct lpfc_sli4_cfg_mhdr));
7905         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
7906                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
7907                          length, LPFC_SLI4_MBX_EMBED);
7908
7909         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7910         shdr = (union lpfc_sli4_cfg_shdr *)
7911                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
7912         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7913         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7914         if (rc2 || shdr_status || shdr_add_status) {
7915                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7916                                 "3026 Mailbox failed , mbxCmd x%x "
7917                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
7918                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
7919                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
7920                 goto read_cfg_out;
7921         }
7922
7923         /* search for fc_fcoe resrouce descriptor */
7924         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
7925
7926         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
7927         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
7928         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
7929         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
7930                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
7931         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
7932                 goto read_cfg_out;
7933
7934         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
7935                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
7936                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
7937                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
7938                         phba->sli4_hba.iov.pf_number =
7939                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
7940                         phba->sli4_hba.iov.vf_number =
7941                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
7942                         break;
7943                 }
7944         }
7945
7946         if (i < LPFC_RSRC_DESC_MAX_NUM)
7947                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7948                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
7949                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
7950                                 phba->sli4_hba.iov.vf_number);
7951         else
7952                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7953                                 "3028 GET_FUNCTION_CONFIG: failed to find "
7954                                 "Resrouce Descriptor:x%x\n",
7955                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
7956
7957 read_cfg_out:
7958         mempool_free(pmb, phba->mbox_mem_pool);
7959         return rc;
7960 }
7961
7962 /**
7963  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
7964  * @phba: pointer to lpfc hba data structure.
7965  *
7966  * This routine is invoked to setup the port-side endian order when
7967  * the port if_type is 0.  This routine has no function for other
7968  * if_types.
7969  *
7970  * Return codes
7971  *      0 - successful
7972  *      -ENOMEM - No available memory
7973  *      -EIO - The mailbox failed to complete successfully.
7974  **/
7975 static int
7976 lpfc_setup_endian_order(struct lpfc_hba *phba)
7977 {
7978         LPFC_MBOXQ_t *mboxq;
7979         uint32_t if_type, rc = 0;
7980         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7981                                       HOST_ENDIAN_HIGH_WORD1};
7982
7983         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7984         switch (if_type) {
7985         case LPFC_SLI_INTF_IF_TYPE_0:
7986                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7987                                                        GFP_KERNEL);
7988                 if (!mboxq) {
7989                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7990                                         "0492 Unable to allocate memory for "
7991                                         "issuing SLI_CONFIG_SPECIAL mailbox "
7992                                         "command\n");
7993                         return -ENOMEM;
7994                 }
7995
7996                 /*
7997                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
7998                  * two words to contain special data values and no other data.
7999                  */
8000                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
8001                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
8002                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8003                 if (rc != MBX_SUCCESS) {
8004                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8005                                         "0493 SLI_CONFIG_SPECIAL mailbox "
8006                                         "failed with status x%x\n",
8007                                         rc);
8008                         rc = -EIO;
8009                 }
8010                 mempool_free(mboxq, phba->mbox_mem_pool);
8011                 break;
8012         case LPFC_SLI_INTF_IF_TYPE_6:
8013         case LPFC_SLI_INTF_IF_TYPE_2:
8014         case LPFC_SLI_INTF_IF_TYPE_1:
8015         default:
8016                 break;
8017         }
8018         return rc;
8019 }
8020
8021 /**
8022  * lpfc_sli4_queue_verify - Verify and update EQ counts
8023  * @phba: pointer to lpfc hba data structure.
8024  *
8025  * This routine is invoked to check the user settable queue counts for EQs.
8026  * After this routine is called the counts will be set to valid values that
8027  * adhere to the constraints of the system's interrupt vectors and the port's
8028  * queue resources.
8029  *
8030  * Return codes
8031  *      0 - successful
8032  *      -ENOMEM - No available memory
8033  **/
8034 static int
8035 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
8036 {
8037         int io_channel;
8038         int fof_vectors = phba->cfg_fof ? 1 : 0;
8039
8040         /*
8041          * Sanity check for configured queue parameters against the run-time
8042          * device parameters
8043          */
8044
8045         /* Sanity check on HBA EQ parameters */
8046         io_channel = phba->io_channel_irqs;
8047
8048         if (phba->sli4_hba.num_online_cpu < io_channel) {
8049                 lpfc_printf_log(phba,
8050                                 KERN_ERR, LOG_INIT,
8051                                 "3188 Reducing IO channels to match number of "
8052                                 "online CPUs: from %d to %d\n",
8053                                 io_channel, phba->sli4_hba.num_online_cpu);
8054                 io_channel = phba->sli4_hba.num_online_cpu;
8055         }
8056
8057         if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) {
8058                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8059                                 "2575 Reducing IO channels to match number of "
8060                                 "available EQs: from %d to %d\n",
8061                                 io_channel,
8062                                 phba->sli4_hba.max_cfg_param.max_eq);
8063                 io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors;
8064         }
8065
8066         /* The actual number of FCP / NVME event queues adopted */
8067         if (io_channel != phba->io_channel_irqs)
8068                 phba->io_channel_irqs = io_channel;
8069         if (phba->cfg_fcp_io_channel > io_channel)
8070                 phba->cfg_fcp_io_channel = io_channel;
8071         if (phba->cfg_nvme_io_channel > io_channel)
8072                 phba->cfg_nvme_io_channel = io_channel;
8073         if (phba->nvmet_support) {
8074                 if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq)
8075                         phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel;
8076         }
8077         if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
8078                 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
8079
8080         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8081                         "2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n",
8082                         phba->io_channel_irqs, phba->cfg_fcp_io_channel,
8083                         phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq);
8084
8085         /* Get EQ depth from module parameter, fake the default for now */
8086         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8087         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8088
8089         /* Get CQ depth from module parameter, fake the default for now */
8090         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8091         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8092         return 0;
8093 }
8094
8095 static int
8096 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx)
8097 {
8098         struct lpfc_queue *qdesc;
8099
8100         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8101                                       phba->sli4_hba.cq_esize,
8102                                       LPFC_CQE_EXP_COUNT);
8103         if (!qdesc) {
8104                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8105                                 "0508 Failed allocate fast-path NVME CQ (%d)\n",
8106                                 wqidx);
8107                 return 1;
8108         }
8109         qdesc->qe_valid = 1;
8110         phba->sli4_hba.nvme_cq[wqidx] = qdesc;
8111
8112         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8113                                       LPFC_WQE128_SIZE, LPFC_WQE_EXP_COUNT);
8114         if (!qdesc) {
8115                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8116                                 "0509 Failed allocate fast-path NVME WQ (%d)\n",
8117                                 wqidx);
8118                 return 1;
8119         }
8120         phba->sli4_hba.nvme_wq[wqidx] = qdesc;
8121         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8122         return 0;
8123 }
8124
8125 static int
8126 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx)
8127 {
8128         struct lpfc_queue *qdesc;
8129         uint32_t wqesize;
8130
8131         /* Create Fast Path FCP CQs */
8132         if (phba->enab_exp_wqcq_pages)
8133                 /* Increase the CQ size when WQEs contain an embedded cdb */
8134                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8135                                               phba->sli4_hba.cq_esize,
8136                                               LPFC_CQE_EXP_COUNT);
8137
8138         else
8139                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8140                                               phba->sli4_hba.cq_esize,
8141                                               phba->sli4_hba.cq_ecount);
8142         if (!qdesc) {
8143                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8144                         "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx);
8145                 return 1;
8146         }
8147         qdesc->qe_valid = 1;
8148         phba->sli4_hba.fcp_cq[wqidx] = qdesc;
8149
8150         /* Create Fast Path FCP WQs */
8151         if (phba->enab_exp_wqcq_pages) {
8152                 /* Increase the WQ size when WQEs contain an embedded cdb */
8153                 wqesize = (phba->fcp_embed_io) ?
8154                         LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
8155                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8156                                               wqesize,
8157                                               LPFC_WQE_EXP_COUNT);
8158         } else
8159                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8160                                               phba->sli4_hba.wq_esize,
8161                                               phba->sli4_hba.wq_ecount);
8162
8163         if (!qdesc) {
8164                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8165                                 "0503 Failed allocate fast-path FCP WQ (%d)\n",
8166                                 wqidx);
8167                 return 1;
8168         }
8169         phba->sli4_hba.fcp_wq[wqidx] = qdesc;
8170         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8171         return 0;
8172 }
8173
8174 /**
8175  * lpfc_sli4_queue_create - Create all the SLI4 queues
8176  * @phba: pointer to lpfc hba data structure.
8177  *
8178  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
8179  * operation. For each SLI4 queue type, the parameters such as queue entry
8180  * count (queue depth) shall be taken from the module parameter. For now,
8181  * we just use some constant number as place holder.
8182  *
8183  * Return codes
8184  *      0 - successful
8185  *      -ENOMEM - No availble memory
8186  *      -EIO - The mailbox failed to complete successfully.
8187  **/
8188 int
8189 lpfc_sli4_queue_create(struct lpfc_hba *phba)
8190 {
8191         struct lpfc_queue *qdesc;
8192         int idx, io_channel;
8193
8194         /*
8195          * Create HBA Record arrays.
8196          * Both NVME and FCP will share that same vectors / EQs
8197          */
8198         io_channel = phba->io_channel_irqs;
8199         if (!io_channel)
8200                 return -ERANGE;
8201
8202         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
8203         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
8204         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
8205         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
8206         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
8207         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
8208         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8209         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8210         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8211         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8212
8213         phba->sli4_hba.hba_eq =  kcalloc(io_channel,
8214                                         sizeof(struct lpfc_queue *),
8215                                         GFP_KERNEL);
8216         if (!phba->sli4_hba.hba_eq) {
8217                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8218                         "2576 Failed allocate memory for "
8219                         "fast-path EQ record array\n");
8220                 goto out_error;
8221         }
8222
8223         if (phba->cfg_fcp_io_channel) {
8224                 phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel,
8225                                                 sizeof(struct lpfc_queue *),
8226                                                 GFP_KERNEL);
8227                 if (!phba->sli4_hba.fcp_cq) {
8228                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8229                                         "2577 Failed allocate memory for "
8230                                         "fast-path CQ record array\n");
8231                         goto out_error;
8232                 }
8233                 phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel,
8234                                                 sizeof(struct lpfc_queue *),
8235                                                 GFP_KERNEL);
8236                 if (!phba->sli4_hba.fcp_wq) {
8237                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8238                                         "2578 Failed allocate memory for "
8239                                         "fast-path FCP WQ record array\n");
8240                         goto out_error;
8241                 }
8242                 /*
8243                  * Since the first EQ can have multiple CQs associated with it,
8244                  * this array is used to quickly see if we have a FCP fast-path
8245                  * CQ match.
8246                  */
8247                 phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel,
8248                                                         sizeof(uint16_t),
8249                                                         GFP_KERNEL);
8250                 if (!phba->sli4_hba.fcp_cq_map) {
8251                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8252                                         "2545 Failed allocate memory for "
8253                                         "fast-path CQ map\n");
8254                         goto out_error;
8255                 }
8256         }
8257
8258         if (phba->cfg_nvme_io_channel) {
8259                 phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel,
8260                                                 sizeof(struct lpfc_queue *),
8261                                                 GFP_KERNEL);
8262                 if (!phba->sli4_hba.nvme_cq) {
8263                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8264                                         "6077 Failed allocate memory for "
8265                                         "fast-path CQ record array\n");
8266                         goto out_error;
8267                 }
8268
8269                 phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel,
8270                                                 sizeof(struct lpfc_queue *),
8271                                                 GFP_KERNEL);
8272                 if (!phba->sli4_hba.nvme_wq) {
8273                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8274                                         "2581 Failed allocate memory for "
8275                                         "fast-path NVME WQ record array\n");
8276                         goto out_error;
8277                 }
8278
8279                 /*
8280                  * Since the first EQ can have multiple CQs associated with it,
8281                  * this array is used to quickly see if we have a NVME fast-path
8282                  * CQ match.
8283                  */
8284                 phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel,
8285                                                         sizeof(uint16_t),
8286                                                         GFP_KERNEL);
8287                 if (!phba->sli4_hba.nvme_cq_map) {
8288                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8289                                         "6078 Failed allocate memory for "
8290                                         "fast-path CQ map\n");
8291                         goto out_error;
8292                 }
8293
8294                 if (phba->nvmet_support) {
8295                         phba->sli4_hba.nvmet_cqset = kcalloc(
8296                                         phba->cfg_nvmet_mrq,
8297                                         sizeof(struct lpfc_queue *),
8298                                         GFP_KERNEL);
8299                         if (!phba->sli4_hba.nvmet_cqset) {
8300                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8301                                         "3121 Fail allocate memory for "
8302                                         "fast-path CQ set array\n");
8303                                 goto out_error;
8304                         }
8305                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
8306                                         phba->cfg_nvmet_mrq,
8307                                         sizeof(struct lpfc_queue *),
8308                                         GFP_KERNEL);
8309                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
8310                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8311                                         "3122 Fail allocate memory for "
8312                                         "fast-path RQ set hdr array\n");
8313                                 goto out_error;
8314                         }
8315                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
8316                                         phba->cfg_nvmet_mrq,
8317                                         sizeof(struct lpfc_queue *),
8318                                         GFP_KERNEL);
8319                         if (!phba->sli4_hba.nvmet_mrq_data) {
8320                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8321                                         "3124 Fail allocate memory for "
8322                                         "fast-path RQ set data array\n");
8323                                 goto out_error;
8324                         }
8325                 }
8326         }
8327
8328         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8329
8330         /* Create HBA Event Queues (EQs) */
8331         for (idx = 0; idx < io_channel; idx++) {
8332                 /* Create EQs */
8333                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8334                                               phba->sli4_hba.eq_esize,
8335                                               phba->sli4_hba.eq_ecount);
8336                 if (!qdesc) {
8337                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8338                                         "0497 Failed allocate EQ (%d)\n", idx);
8339                         goto out_error;
8340                 }
8341                 qdesc->qe_valid = 1;
8342                 phba->sli4_hba.hba_eq[idx] = qdesc;
8343         }
8344
8345         /* FCP and NVME io channels are not required to be balanced */
8346
8347         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8348                 if (lpfc_alloc_fcp_wq_cq(phba, idx))
8349                         goto out_error;
8350
8351         for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++)
8352                 if (lpfc_alloc_nvme_wq_cq(phba, idx))
8353                         goto out_error;
8354
8355         if (phba->nvmet_support) {
8356                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8357                         qdesc = lpfc_sli4_queue_alloc(phba,
8358                                                       LPFC_DEFAULT_PAGE_SIZE,
8359                                                       phba->sli4_hba.cq_esize,
8360                                                       phba->sli4_hba.cq_ecount);
8361                         if (!qdesc) {
8362                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8363                                         "3142 Failed allocate NVME "
8364                                         "CQ Set (%d)\n", idx);
8365                                 goto out_error;
8366                         }
8367                         qdesc->qe_valid = 1;
8368                         phba->sli4_hba.nvmet_cqset[idx] = qdesc;
8369                 }
8370         }
8371
8372         /*
8373          * Create Slow Path Completion Queues (CQs)
8374          */
8375
8376         /* Create slow-path Mailbox Command Complete Queue */
8377         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8378                                       phba->sli4_hba.cq_esize,
8379                                       phba->sli4_hba.cq_ecount);
8380         if (!qdesc) {
8381                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8382                                 "0500 Failed allocate slow-path mailbox CQ\n");
8383                 goto out_error;
8384         }
8385         qdesc->qe_valid = 1;
8386         phba->sli4_hba.mbx_cq = qdesc;
8387
8388         /* Create slow-path ELS Complete Queue */
8389         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8390                                       phba->sli4_hba.cq_esize,
8391                                       phba->sli4_hba.cq_ecount);
8392         if (!qdesc) {
8393                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8394                                 "0501 Failed allocate slow-path ELS CQ\n");
8395                 goto out_error;
8396         }
8397         qdesc->qe_valid = 1;
8398         phba->sli4_hba.els_cq = qdesc;
8399
8400
8401         /*
8402          * Create Slow Path Work Queues (WQs)
8403          */
8404
8405         /* Create Mailbox Command Queue */
8406
8407         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8408                                       phba->sli4_hba.mq_esize,
8409                                       phba->sli4_hba.mq_ecount);
8410         if (!qdesc) {
8411                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8412                                 "0505 Failed allocate slow-path MQ\n");
8413                 goto out_error;
8414         }
8415         phba->sli4_hba.mbx_wq = qdesc;
8416
8417         /*
8418          * Create ELS Work Queues
8419          */
8420
8421         /* Create slow-path ELS Work Queue */
8422         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8423                                       phba->sli4_hba.wq_esize,
8424                                       phba->sli4_hba.wq_ecount);
8425         if (!qdesc) {
8426                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8427                                 "0504 Failed allocate slow-path ELS WQ\n");
8428                 goto out_error;
8429         }
8430         phba->sli4_hba.els_wq = qdesc;
8431         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8432
8433         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8434                 /* Create NVME LS Complete Queue */
8435                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8436                                               phba->sli4_hba.cq_esize,
8437                                               phba->sli4_hba.cq_ecount);
8438                 if (!qdesc) {
8439                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8440                                         "6079 Failed allocate NVME LS CQ\n");
8441                         goto out_error;
8442                 }
8443                 qdesc->qe_valid = 1;
8444                 phba->sli4_hba.nvmels_cq = qdesc;
8445
8446                 /* Create NVME LS Work Queue */
8447                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8448                                               phba->sli4_hba.wq_esize,
8449                                               phba->sli4_hba.wq_ecount);
8450                 if (!qdesc) {
8451                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8452                                         "6080 Failed allocate NVME LS WQ\n");
8453                         goto out_error;
8454                 }
8455                 phba->sli4_hba.nvmels_wq = qdesc;
8456                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8457         }
8458
8459         /*
8460          * Create Receive Queue (RQ)
8461          */
8462
8463         /* Create Receive Queue for header */
8464         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8465                                       phba->sli4_hba.rq_esize,
8466                                       phba->sli4_hba.rq_ecount);
8467         if (!qdesc) {
8468                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8469                                 "0506 Failed allocate receive HRQ\n");
8470                 goto out_error;
8471         }
8472         phba->sli4_hba.hdr_rq = qdesc;
8473
8474         /* Create Receive Queue for data */
8475         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8476                                       phba->sli4_hba.rq_esize,
8477                                       phba->sli4_hba.rq_ecount);
8478         if (!qdesc) {
8479                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8480                                 "0507 Failed allocate receive DRQ\n");
8481                 goto out_error;
8482         }
8483         phba->sli4_hba.dat_rq = qdesc;
8484
8485         if (phba->nvmet_support) {
8486                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8487                         /* Create NVMET Receive Queue for header */
8488                         qdesc = lpfc_sli4_queue_alloc(phba,
8489                                                       LPFC_DEFAULT_PAGE_SIZE,
8490                                                       phba->sli4_hba.rq_esize,
8491                                                       LPFC_NVMET_RQE_DEF_COUNT);
8492                         if (!qdesc) {
8493                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8494                                                 "3146 Failed allocate "
8495                                                 "receive HRQ\n");
8496                                 goto out_error;
8497                         }
8498                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
8499
8500                         /* Only needed for header of RQ pair */
8501                         qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb),
8502                                               GFP_KERNEL);
8503                         if (qdesc->rqbp == NULL) {
8504                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8505                                                 "6131 Failed allocate "
8506                                                 "Header RQBP\n");
8507                                 goto out_error;
8508                         }
8509
8510                         /* Put list in known state in case driver load fails. */
8511                         INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
8512
8513                         /* Create NVMET Receive Queue for data */
8514                         qdesc = lpfc_sli4_queue_alloc(phba,
8515                                                       LPFC_DEFAULT_PAGE_SIZE,
8516                                                       phba->sli4_hba.rq_esize,
8517                                                       LPFC_NVMET_RQE_DEF_COUNT);
8518                         if (!qdesc) {
8519                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8520                                                 "3156 Failed allocate "
8521                                                 "receive DRQ\n");
8522                                 goto out_error;
8523                         }
8524                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
8525                 }
8526         }
8527
8528         /* Create the Queues needed for Flash Optimized Fabric operations */
8529         if (phba->cfg_fof)
8530                 lpfc_fof_queue_create(phba);
8531         return 0;
8532
8533 out_error:
8534         lpfc_sli4_queue_destroy(phba);
8535         return -ENOMEM;
8536 }
8537
8538 static inline void
8539 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
8540 {
8541         if (*qp != NULL) {
8542                 lpfc_sli4_queue_free(*qp);
8543                 *qp = NULL;
8544         }
8545 }
8546
8547 static inline void
8548 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
8549 {
8550         int idx;
8551
8552         if (*qs == NULL)
8553                 return;
8554
8555         for (idx = 0; idx < max; idx++)
8556                 __lpfc_sli4_release_queue(&(*qs)[idx]);
8557
8558         kfree(*qs);
8559         *qs = NULL;
8560 }
8561
8562 static inline void
8563 lpfc_sli4_release_queue_map(uint16_t **qmap)
8564 {
8565         if (*qmap != NULL) {
8566                 kfree(*qmap);
8567                 *qmap = NULL;
8568         }
8569 }
8570
8571 /**
8572  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
8573  * @phba: pointer to lpfc hba data structure.
8574  *
8575  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
8576  * operation.
8577  *
8578  * Return codes
8579  *      0 - successful
8580  *      -ENOMEM - No available memory
8581  *      -EIO - The mailbox failed to complete successfully.
8582  **/
8583 void
8584 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
8585 {
8586         if (phba->cfg_fof)
8587                 lpfc_fof_queue_destroy(phba);
8588
8589         /* Release HBA eqs */
8590         lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs);
8591
8592         /* Release FCP cqs */
8593         lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq,
8594                                  phba->cfg_fcp_io_channel);
8595
8596         /* Release FCP wqs */
8597         lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq,
8598                                  phba->cfg_fcp_io_channel);
8599
8600         /* Release FCP CQ mapping array */
8601         lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map);
8602
8603         /* Release NVME cqs */
8604         lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq,
8605                                         phba->cfg_nvme_io_channel);
8606
8607         /* Release NVME wqs */
8608         lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq,
8609                                         phba->cfg_nvme_io_channel);
8610
8611         /* Release NVME CQ mapping array */
8612         lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map);
8613
8614         if (phba->nvmet_support) {
8615                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
8616                                          phba->cfg_nvmet_mrq);
8617
8618                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
8619                                          phba->cfg_nvmet_mrq);
8620                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
8621                                          phba->cfg_nvmet_mrq);
8622         }
8623
8624         /* Release mailbox command work queue */
8625         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
8626
8627         /* Release ELS work queue */
8628         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
8629
8630         /* Release ELS work queue */
8631         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
8632
8633         /* Release unsolicited receive queue */
8634         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
8635         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
8636
8637         /* Release ELS complete queue */
8638         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
8639
8640         /* Release NVME LS complete queue */
8641         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
8642
8643         /* Release mailbox command complete queue */
8644         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
8645
8646         /* Everything on this list has been freed */
8647         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8648 }
8649
8650 int
8651 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
8652 {
8653         struct lpfc_rqb *rqbp;
8654         struct lpfc_dmabuf *h_buf;
8655         struct rqb_dmabuf *rqb_buffer;
8656
8657         rqbp = rq->rqbp;
8658         while (!list_empty(&rqbp->rqb_buffer_list)) {
8659                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
8660                                  struct lpfc_dmabuf, list);
8661
8662                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
8663                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
8664                 rqbp->buffer_count--;
8665         }
8666         return 1;
8667 }
8668
8669 static int
8670 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
8671         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
8672         int qidx, uint32_t qtype)
8673 {
8674         struct lpfc_sli_ring *pring;
8675         int rc;
8676
8677         if (!eq || !cq || !wq) {
8678                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8679                         "6085 Fast-path %s (%d) not allocated\n",
8680                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
8681                 return -ENOMEM;
8682         }
8683
8684         /* create the Cq first */
8685         rc = lpfc_cq_create(phba, cq, eq,
8686                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
8687         if (rc) {
8688                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8689                         "6086 Failed setup of CQ (%d), rc = 0x%x\n",
8690                         qidx, (uint32_t)rc);
8691                 return rc;
8692         }
8693         cq->chann = qidx;
8694
8695         if (qtype != LPFC_MBOX) {
8696                 /* Setup nvme_cq_map for fast lookup */
8697                 if (cq_map)
8698                         *cq_map = cq->queue_id;
8699
8700                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8701                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
8702                         qidx, cq->queue_id, qidx, eq->queue_id);
8703
8704                 /* create the wq */
8705                 rc = lpfc_wq_create(phba, wq, cq, qtype);
8706                 if (rc) {
8707                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8708                                 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n",
8709                                 qidx, (uint32_t)rc);
8710                         /* no need to tear down cq - caller will do so */
8711                         return rc;
8712                 }
8713                 wq->chann = qidx;
8714
8715                 /* Bind this CQ/WQ to the NVME ring */
8716                 pring = wq->pring;
8717                 pring->sli.sli4.wqp = (void *)wq;
8718                 cq->pring = pring;
8719
8720                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8721                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
8722                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
8723         } else {
8724                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
8725                 if (rc) {
8726                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8727                                 "0539 Failed setup of slow-path MQ: "
8728                                 "rc = 0x%x\n", rc);
8729                         /* no need to tear down cq - caller will do so */
8730                         return rc;
8731                 }
8732
8733                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8734                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
8735                         phba->sli4_hba.mbx_wq->queue_id,
8736                         phba->sli4_hba.mbx_cq->queue_id);
8737         }
8738
8739         return 0;
8740 }
8741
8742 /**
8743  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
8744  * @phba: pointer to lpfc hba data structure.
8745  *
8746  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
8747  * operation.
8748  *
8749  * Return codes
8750  *      0 - successful
8751  *      -ENOMEM - No available memory
8752  *      -EIO - The mailbox failed to complete successfully.
8753  **/
8754 int
8755 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
8756 {
8757         uint32_t shdr_status, shdr_add_status;
8758         union lpfc_sli4_cfg_shdr *shdr;
8759         LPFC_MBOXQ_t *mboxq;
8760         int qidx;
8761         uint32_t length, io_channel;
8762         int rc = -ENOMEM;
8763
8764         /* Check for dual-ULP support */
8765         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8766         if (!mboxq) {
8767                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8768                                 "3249 Unable to allocate memory for "
8769                                 "QUERY_FW_CFG mailbox command\n");
8770                 return -ENOMEM;
8771         }
8772         length = (sizeof(struct lpfc_mbx_query_fw_config) -
8773                   sizeof(struct lpfc_sli4_cfg_mhdr));
8774         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8775                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
8776                          length, LPFC_SLI4_MBX_EMBED);
8777
8778         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8779
8780         shdr = (union lpfc_sli4_cfg_shdr *)
8781                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8782         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8783         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8784         if (shdr_status || shdr_add_status || rc) {
8785                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8786                                 "3250 QUERY_FW_CFG mailbox failed with status "
8787                                 "x%x add_status x%x, mbx status x%x\n",
8788                                 shdr_status, shdr_add_status, rc);
8789                 if (rc != MBX_TIMEOUT)
8790                         mempool_free(mboxq, phba->mbox_mem_pool);
8791                 rc = -ENXIO;
8792                 goto out_error;
8793         }
8794
8795         phba->sli4_hba.fw_func_mode =
8796                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
8797         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
8798         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
8799         phba->sli4_hba.physical_port =
8800                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
8801         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8802                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
8803                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
8804                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
8805
8806         if (rc != MBX_TIMEOUT)
8807                 mempool_free(mboxq, phba->mbox_mem_pool);
8808
8809         /*
8810          * Set up HBA Event Queues (EQs)
8811          */
8812         io_channel = phba->io_channel_irqs;
8813
8814         /* Set up HBA event queue */
8815         if (io_channel && !phba->sli4_hba.hba_eq) {
8816                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8817                                 "3147 Fast-path EQs not allocated\n");
8818                 rc = -ENOMEM;
8819                 goto out_error;
8820         }
8821         for (qidx = 0; qidx < io_channel; qidx++) {
8822                 if (!phba->sli4_hba.hba_eq[qidx]) {
8823                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8824                                         "0522 Fast-path EQ (%d) not "
8825                                         "allocated\n", qidx);
8826                         rc = -ENOMEM;
8827                         goto out_destroy;
8828                 }
8829                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx],
8830                                                 phba->cfg_fcp_imax);
8831                 if (rc) {
8832                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8833                                         "0523 Failed setup of fast-path EQ "
8834                                         "(%d), rc = 0x%x\n", qidx,
8835                                         (uint32_t)rc);
8836                         goto out_destroy;
8837                 }
8838                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8839                                 "2584 HBA EQ setup: queue[%d]-id=%d\n",
8840                                 qidx, phba->sli4_hba.hba_eq[qidx]->queue_id);
8841         }
8842
8843         if (phba->cfg_nvme_io_channel) {
8844                 if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) {
8845                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8846                                 "6084 Fast-path NVME %s array not allocated\n",
8847                                 (phba->sli4_hba.nvme_cq) ? "CQ" : "WQ");
8848                         rc = -ENOMEM;
8849                         goto out_destroy;
8850                 }
8851
8852                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) {
8853                         rc = lpfc_create_wq_cq(phba,
8854                                         phba->sli4_hba.hba_eq[
8855                                                 qidx % io_channel],
8856                                         phba->sli4_hba.nvme_cq[qidx],
8857                                         phba->sli4_hba.nvme_wq[qidx],
8858                                         &phba->sli4_hba.nvme_cq_map[qidx],
8859                                         qidx, LPFC_NVME);
8860                         if (rc) {
8861                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8862                                         "6123 Failed to setup fastpath "
8863                                         "NVME WQ/CQ (%d), rc = 0x%x\n",
8864                                         qidx, (uint32_t)rc);
8865                                 goto out_destroy;
8866                         }
8867                 }
8868         }
8869
8870         if (phba->cfg_fcp_io_channel) {
8871                 /* Set up fast-path FCP Response Complete Queue */
8872                 if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) {
8873                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8874                                 "3148 Fast-path FCP %s array not allocated\n",
8875                                 phba->sli4_hba.fcp_cq ? "WQ" : "CQ");
8876                         rc = -ENOMEM;
8877                         goto out_destroy;
8878                 }
8879
8880                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) {
8881                         rc = lpfc_create_wq_cq(phba,
8882                                         phba->sli4_hba.hba_eq[
8883                                                 qidx % io_channel],
8884                                         phba->sli4_hba.fcp_cq[qidx],
8885                                         phba->sli4_hba.fcp_wq[qidx],
8886                                         &phba->sli4_hba.fcp_cq_map[qidx],
8887                                         qidx, LPFC_FCP);
8888                         if (rc) {
8889                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8890                                         "0535 Failed to setup fastpath "
8891                                         "FCP WQ/CQ (%d), rc = 0x%x\n",
8892                                         qidx, (uint32_t)rc);
8893                                 goto out_destroy;
8894                         }
8895                 }
8896         }
8897
8898         /*
8899          * Set up Slow Path Complete Queues (CQs)
8900          */
8901
8902         /* Set up slow-path MBOX CQ/MQ */
8903
8904         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
8905                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8906                                 "0528 %s not allocated\n",
8907                                 phba->sli4_hba.mbx_cq ?
8908                                 "Mailbox WQ" : "Mailbox CQ");
8909                 rc = -ENOMEM;
8910                 goto out_destroy;
8911         }
8912
8913         rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8914                                phba->sli4_hba.mbx_cq,
8915                                phba->sli4_hba.mbx_wq,
8916                                NULL, 0, LPFC_MBOX);
8917         if (rc) {
8918                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8919                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
8920                         (uint32_t)rc);
8921                 goto out_destroy;
8922         }
8923         if (phba->nvmet_support) {
8924                 if (!phba->sli4_hba.nvmet_cqset) {
8925                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8926                                         "3165 Fast-path NVME CQ Set "
8927                                         "array not allocated\n");
8928                         rc = -ENOMEM;
8929                         goto out_destroy;
8930                 }
8931                 if (phba->cfg_nvmet_mrq > 1) {
8932                         rc = lpfc_cq_create_set(phba,
8933                                         phba->sli4_hba.nvmet_cqset,
8934                                         phba->sli4_hba.hba_eq,
8935                                         LPFC_WCQ, LPFC_NVMET);
8936                         if (rc) {
8937                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8938                                                 "3164 Failed setup of NVME CQ "
8939                                                 "Set, rc = 0x%x\n",
8940                                                 (uint32_t)rc);
8941                                 goto out_destroy;
8942                         }
8943                 } else {
8944                         /* Set up NVMET Receive Complete Queue */
8945                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
8946                                             phba->sli4_hba.hba_eq[0],
8947                                             LPFC_WCQ, LPFC_NVMET);
8948                         if (rc) {
8949                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8950                                                 "6089 Failed setup NVMET CQ: "
8951                                                 "rc = 0x%x\n", (uint32_t)rc);
8952                                 goto out_destroy;
8953                         }
8954                         phba->sli4_hba.nvmet_cqset[0]->chann = 0;
8955
8956                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8957                                         "6090 NVMET CQ setup: cq-id=%d, "
8958                                         "parent eq-id=%d\n",
8959                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
8960                                         phba->sli4_hba.hba_eq[0]->queue_id);
8961                 }
8962         }
8963
8964         /* Set up slow-path ELS WQ/CQ */
8965         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
8966                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8967                                 "0530 ELS %s not allocated\n",
8968                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
8969                 rc = -ENOMEM;
8970                 goto out_destroy;
8971         }
8972         rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8973                                         phba->sli4_hba.els_cq,
8974                                         phba->sli4_hba.els_wq,
8975                                         NULL, 0, LPFC_ELS);
8976         if (rc) {
8977                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8978                         "0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
8979                         (uint32_t)rc);
8980                 goto out_destroy;
8981         }
8982         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8983                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
8984                         phba->sli4_hba.els_wq->queue_id,
8985                         phba->sli4_hba.els_cq->queue_id);
8986
8987         if (phba->cfg_nvme_io_channel) {
8988                 /* Set up NVME LS Complete Queue */
8989                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
8990                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8991                                         "6091 LS %s not allocated\n",
8992                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
8993                         rc = -ENOMEM;
8994                         goto out_destroy;
8995                 }
8996                 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8997                                         phba->sli4_hba.nvmels_cq,
8998                                         phba->sli4_hba.nvmels_wq,
8999                                         NULL, 0, LPFC_NVME_LS);
9000                 if (rc) {
9001                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9002                                 "0529 Failed setup of NVVME LS WQ/CQ: "
9003                                 "rc = 0x%x\n", (uint32_t)rc);
9004                         goto out_destroy;
9005                 }
9006
9007                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9008                                 "6096 ELS WQ setup: wq-id=%d, "
9009                                 "parent cq-id=%d\n",
9010                                 phba->sli4_hba.nvmels_wq->queue_id,
9011                                 phba->sli4_hba.nvmels_cq->queue_id);
9012         }
9013
9014         /*
9015          * Create NVMET Receive Queue (RQ)
9016          */
9017         if (phba->nvmet_support) {
9018                 if ((!phba->sli4_hba.nvmet_cqset) ||
9019                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
9020                     (!phba->sli4_hba.nvmet_mrq_data)) {
9021                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9022                                         "6130 MRQ CQ Queues not "
9023                                         "allocated\n");
9024                         rc = -ENOMEM;
9025                         goto out_destroy;
9026                 }
9027                 if (phba->cfg_nvmet_mrq > 1) {
9028                         rc = lpfc_mrq_create(phba,
9029                                              phba->sli4_hba.nvmet_mrq_hdr,
9030                                              phba->sli4_hba.nvmet_mrq_data,
9031                                              phba->sli4_hba.nvmet_cqset,
9032                                              LPFC_NVMET);
9033                         if (rc) {
9034                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9035                                                 "6098 Failed setup of NVMET "
9036                                                 "MRQ: rc = 0x%x\n",
9037                                                 (uint32_t)rc);
9038                                 goto out_destroy;
9039                         }
9040
9041                 } else {
9042                         rc = lpfc_rq_create(phba,
9043                                             phba->sli4_hba.nvmet_mrq_hdr[0],
9044                                             phba->sli4_hba.nvmet_mrq_data[0],
9045                                             phba->sli4_hba.nvmet_cqset[0],
9046                                             LPFC_NVMET);
9047                         if (rc) {
9048                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9049                                                 "6057 Failed setup of NVMET "
9050                                                 "Receive Queue: rc = 0x%x\n",
9051                                                 (uint32_t)rc);
9052                                 goto out_destroy;
9053                         }
9054
9055                         lpfc_printf_log(
9056                                 phba, KERN_INFO, LOG_INIT,
9057                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
9058                                 "dat-rq-id=%d parent cq-id=%d\n",
9059                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
9060                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
9061                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
9062
9063                 }
9064         }
9065
9066         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
9067                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9068                                 "0540 Receive Queue not allocated\n");
9069                 rc = -ENOMEM;
9070                 goto out_destroy;
9071         }
9072
9073         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
9074                             phba->sli4_hba.els_cq, LPFC_USOL);
9075         if (rc) {
9076                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9077                                 "0541 Failed setup of Receive Queue: "
9078                                 "rc = 0x%x\n", (uint32_t)rc);
9079                 goto out_destroy;
9080         }
9081
9082         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9083                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
9084                         "parent cq-id=%d\n",
9085                         phba->sli4_hba.hdr_rq->queue_id,
9086                         phba->sli4_hba.dat_rq->queue_id,
9087                         phba->sli4_hba.els_cq->queue_id);
9088
9089         if (phba->cfg_fof) {
9090                 rc = lpfc_fof_queue_setup(phba);
9091                 if (rc) {
9092                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9093                                         "0549 Failed setup of FOF Queues: "
9094                                         "rc = 0x%x\n", rc);
9095                         goto out_destroy;
9096                 }
9097         }
9098
9099         for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
9100                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
9101                                          phba->cfg_fcp_imax);
9102
9103         return 0;
9104
9105 out_destroy:
9106         lpfc_sli4_queue_unset(phba);
9107 out_error:
9108         return rc;
9109 }
9110
9111 /**
9112  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
9113  * @phba: pointer to lpfc hba data structure.
9114  *
9115  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
9116  * operation.
9117  *
9118  * Return codes
9119  *      0 - successful
9120  *      -ENOMEM - No available memory
9121  *      -EIO - The mailbox failed to complete successfully.
9122  **/
9123 void
9124 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
9125 {
9126         int qidx;
9127
9128         /* Unset the queues created for Flash Optimized Fabric operations */
9129         if (phba->cfg_fof)
9130                 lpfc_fof_queue_destroy(phba);
9131
9132         /* Unset mailbox command work queue */
9133         if (phba->sli4_hba.mbx_wq)
9134                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
9135
9136         /* Unset NVME LS work queue */
9137         if (phba->sli4_hba.nvmels_wq)
9138                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
9139
9140         /* Unset ELS work queue */
9141         if (phba->sli4_hba.els_wq)
9142                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
9143
9144         /* Unset unsolicited receive queue */
9145         if (phba->sli4_hba.hdr_rq)
9146                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
9147                                 phba->sli4_hba.dat_rq);
9148
9149         /* Unset FCP work queue */
9150         if (phba->sli4_hba.fcp_wq)
9151                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
9152                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]);
9153
9154         /* Unset NVME work queue */
9155         if (phba->sli4_hba.nvme_wq) {
9156                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
9157                         lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]);
9158         }
9159
9160         /* Unset mailbox command complete queue */
9161         if (phba->sli4_hba.mbx_cq)
9162                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
9163
9164         /* Unset ELS complete queue */
9165         if (phba->sli4_hba.els_cq)
9166                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
9167
9168         /* Unset NVME LS complete queue */
9169         if (phba->sli4_hba.nvmels_cq)
9170                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
9171
9172         /* Unset NVME response complete queue */
9173         if (phba->sli4_hba.nvme_cq)
9174                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
9175                         lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]);
9176
9177         if (phba->nvmet_support) {
9178                 /* Unset NVMET MRQ queue */
9179                 if (phba->sli4_hba.nvmet_mrq_hdr) {
9180                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9181                                 lpfc_rq_destroy(
9182                                         phba,
9183                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
9184                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
9185                 }
9186
9187                 /* Unset NVMET CQ Set complete queue */
9188                 if (phba->sli4_hba.nvmet_cqset) {
9189                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9190                                 lpfc_cq_destroy(
9191                                         phba, phba->sli4_hba.nvmet_cqset[qidx]);
9192                 }
9193         }
9194
9195         /* Unset FCP response complete queue */
9196         if (phba->sli4_hba.fcp_cq)
9197                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
9198                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]);
9199
9200         /* Unset fast-path event queue */
9201         if (phba->sli4_hba.hba_eq)
9202                 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++)
9203                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]);
9204 }
9205
9206 /**
9207  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
9208  * @phba: pointer to lpfc hba data structure.
9209  *
9210  * This routine is invoked to allocate and set up a pool of completion queue
9211  * events. The body of the completion queue event is a completion queue entry
9212  * CQE. For now, this pool is used for the interrupt service routine to queue
9213  * the following HBA completion queue events for the worker thread to process:
9214  *   - Mailbox asynchronous events
9215  *   - Receive queue completion unsolicited events
9216  * Later, this can be used for all the slow-path events.
9217  *
9218  * Return codes
9219  *      0 - successful
9220  *      -ENOMEM - No available memory
9221  **/
9222 static int
9223 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
9224 {
9225         struct lpfc_cq_event *cq_event;
9226         int i;
9227
9228         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
9229                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
9230                 if (!cq_event)
9231                         goto out_pool_create_fail;
9232                 list_add_tail(&cq_event->list,
9233                               &phba->sli4_hba.sp_cqe_event_pool);
9234         }
9235         return 0;
9236
9237 out_pool_create_fail:
9238         lpfc_sli4_cq_event_pool_destroy(phba);
9239         return -ENOMEM;
9240 }
9241
9242 /**
9243  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
9244  * @phba: pointer to lpfc hba data structure.
9245  *
9246  * This routine is invoked to free the pool of completion queue events at
9247  * driver unload time. Note that, it is the responsibility of the driver
9248  * cleanup routine to free all the outstanding completion-queue events
9249  * allocated from this pool back into the pool before invoking this routine
9250  * to destroy the pool.
9251  **/
9252 static void
9253 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
9254 {
9255         struct lpfc_cq_event *cq_event, *next_cq_event;
9256
9257         list_for_each_entry_safe(cq_event, next_cq_event,
9258                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
9259                 list_del(&cq_event->list);
9260                 kfree(cq_event);
9261         }
9262 }
9263
9264 /**
9265  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9266  * @phba: pointer to lpfc hba data structure.
9267  *
9268  * This routine is the lock free version of the API invoked to allocate a
9269  * completion-queue event from the free pool.
9270  *
9271  * Return: Pointer to the newly allocated completion-queue event if successful
9272  *         NULL otherwise.
9273  **/
9274 struct lpfc_cq_event *
9275 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9276 {
9277         struct lpfc_cq_event *cq_event = NULL;
9278
9279         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
9280                          struct lpfc_cq_event, list);
9281         return cq_event;
9282 }
9283
9284 /**
9285  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9286  * @phba: pointer to lpfc hba data structure.
9287  *
9288  * This routine is the lock version of the API invoked to allocate a
9289  * completion-queue event from the free pool.
9290  *
9291  * Return: Pointer to the newly allocated completion-queue event if successful
9292  *         NULL otherwise.
9293  **/
9294 struct lpfc_cq_event *
9295 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9296 {
9297         struct lpfc_cq_event *cq_event;
9298         unsigned long iflags;
9299
9300         spin_lock_irqsave(&phba->hbalock, iflags);
9301         cq_event = __lpfc_sli4_cq_event_alloc(phba);
9302         spin_unlock_irqrestore(&phba->hbalock, iflags);
9303         return cq_event;
9304 }
9305
9306 /**
9307  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9308  * @phba: pointer to lpfc hba data structure.
9309  * @cq_event: pointer to the completion queue event to be freed.
9310  *
9311  * This routine is the lock free version of the API invoked to release a
9312  * completion-queue event back into the free pool.
9313  **/
9314 void
9315 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9316                              struct lpfc_cq_event *cq_event)
9317 {
9318         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
9319 }
9320
9321 /**
9322  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9323  * @phba: pointer to lpfc hba data structure.
9324  * @cq_event: pointer to the completion queue event to be freed.
9325  *
9326  * This routine is the lock version of the API invoked to release a
9327  * completion-queue event back into the free pool.
9328  **/
9329 void
9330 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9331                            struct lpfc_cq_event *cq_event)
9332 {
9333         unsigned long iflags;
9334         spin_lock_irqsave(&phba->hbalock, iflags);
9335         __lpfc_sli4_cq_event_release(phba, cq_event);
9336         spin_unlock_irqrestore(&phba->hbalock, iflags);
9337 }
9338
9339 /**
9340  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
9341  * @phba: pointer to lpfc hba data structure.
9342  *
9343  * This routine is to free all the pending completion-queue events to the
9344  * back into the free pool for device reset.
9345  **/
9346 static void
9347 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
9348 {
9349         LIST_HEAD(cqelist);
9350         struct lpfc_cq_event *cqe;
9351         unsigned long iflags;
9352
9353         /* Retrieve all the pending WCQEs from pending WCQE lists */
9354         spin_lock_irqsave(&phba->hbalock, iflags);
9355         /* Pending FCP XRI abort events */
9356         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
9357                          &cqelist);
9358         /* Pending ELS XRI abort events */
9359         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
9360                          &cqelist);
9361         /* Pending asynnc events */
9362         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
9363                          &cqelist);
9364         spin_unlock_irqrestore(&phba->hbalock, iflags);
9365
9366         while (!list_empty(&cqelist)) {
9367                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
9368                 lpfc_sli4_cq_event_release(phba, cqe);
9369         }
9370 }
9371
9372 /**
9373  * lpfc_pci_function_reset - Reset pci function.
9374  * @phba: pointer to lpfc hba data structure.
9375  *
9376  * This routine is invoked to request a PCI function reset. It will destroys
9377  * all resources assigned to the PCI function which originates this request.
9378  *
9379  * Return codes
9380  *      0 - successful
9381  *      -ENOMEM - No available memory
9382  *      -EIO - The mailbox failed to complete successfully.
9383  **/
9384 int
9385 lpfc_pci_function_reset(struct lpfc_hba *phba)
9386 {
9387         LPFC_MBOXQ_t *mboxq;
9388         uint32_t rc = 0, if_type;
9389         uint32_t shdr_status, shdr_add_status;
9390         uint32_t rdy_chk;
9391         uint32_t port_reset = 0;
9392         union lpfc_sli4_cfg_shdr *shdr;
9393         struct lpfc_register reg_data;
9394         uint16_t devid;
9395
9396         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9397         switch (if_type) {
9398         case LPFC_SLI_INTF_IF_TYPE_0:
9399                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
9400                                                        GFP_KERNEL);
9401                 if (!mboxq) {
9402                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9403                                         "0494 Unable to allocate memory for "
9404                                         "issuing SLI_FUNCTION_RESET mailbox "
9405                                         "command\n");
9406                         return -ENOMEM;
9407                 }
9408
9409                 /* Setup PCI function reset mailbox-ioctl command */
9410                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9411                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
9412                                  LPFC_SLI4_MBX_EMBED);
9413                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9414                 shdr = (union lpfc_sli4_cfg_shdr *)
9415                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9416                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9417                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
9418                                          &shdr->response);
9419                 if (rc != MBX_TIMEOUT)
9420                         mempool_free(mboxq, phba->mbox_mem_pool);
9421                 if (shdr_status || shdr_add_status || rc) {
9422                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9423                                         "0495 SLI_FUNCTION_RESET mailbox "
9424                                         "failed with status x%x add_status x%x,"
9425                                         " mbx status x%x\n",
9426                                         shdr_status, shdr_add_status, rc);
9427                         rc = -ENXIO;
9428                 }
9429                 break;
9430         case LPFC_SLI_INTF_IF_TYPE_2:
9431         case LPFC_SLI_INTF_IF_TYPE_6:
9432 wait:
9433                 /*
9434                  * Poll the Port Status Register and wait for RDY for
9435                  * up to 30 seconds. If the port doesn't respond, treat
9436                  * it as an error.
9437                  */
9438                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
9439                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
9440                                 STATUSregaddr, &reg_data.word0)) {
9441                                 rc = -ENODEV;
9442                                 goto out;
9443                         }
9444                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
9445                                 break;
9446                         msleep(20);
9447                 }
9448
9449                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
9450                         phba->work_status[0] = readl(
9451                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
9452                         phba->work_status[1] = readl(
9453                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
9454                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9455                                         "2890 Port not ready, port status reg "
9456                                         "0x%x error 1=0x%x, error 2=0x%x\n",
9457                                         reg_data.word0,
9458                                         phba->work_status[0],
9459                                         phba->work_status[1]);
9460                         rc = -ENODEV;
9461                         goto out;
9462                 }
9463
9464                 if (!port_reset) {
9465                         /*
9466                          * Reset the port now
9467                          */
9468                         reg_data.word0 = 0;
9469                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
9470                                LPFC_SLIPORT_LITTLE_ENDIAN);
9471                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
9472                                LPFC_SLIPORT_INIT_PORT);
9473                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
9474                                CTRLregaddr);
9475                         /* flush */
9476                         pci_read_config_word(phba->pcidev,
9477                                              PCI_DEVICE_ID, &devid);
9478
9479                         port_reset = 1;
9480                         msleep(20);
9481                         goto wait;
9482                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
9483                         rc = -ENODEV;
9484                         goto out;
9485                 }
9486                 break;
9487
9488         case LPFC_SLI_INTF_IF_TYPE_1:
9489         default:
9490                 break;
9491         }
9492
9493 out:
9494         /* Catch the not-ready port failure after a port reset. */
9495         if (rc) {
9496                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9497                                 "3317 HBA not functional: IP Reset Failed "
9498                                 "try: echo fw_reset > board_mode\n");
9499                 rc = -ENODEV;
9500         }
9501
9502         return rc;
9503 }
9504
9505 /**
9506  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
9507  * @phba: pointer to lpfc hba data structure.
9508  *
9509  * This routine is invoked to set up the PCI device memory space for device
9510  * with SLI-4 interface spec.
9511  *
9512  * Return codes
9513  *      0 - successful
9514  *      other values - error
9515  **/
9516 static int
9517 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
9518 {
9519         struct pci_dev *pdev;
9520         unsigned long bar0map_len, bar1map_len, bar2map_len;
9521         int error = -ENODEV;
9522         uint32_t if_type;
9523
9524         /* Obtain PCI device reference */
9525         if (!phba->pcidev)
9526                 return error;
9527         else
9528                 pdev = phba->pcidev;
9529
9530         /* Set the device DMA mask size */
9531         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
9532          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
9533                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
9534                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
9535                         return error;
9536                 }
9537         }
9538
9539         /*
9540          * The BARs and register set definitions and offset locations are
9541          * dependent on the if_type.
9542          */
9543         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
9544                                   &phba->sli4_hba.sli_intf.word0)) {
9545                 return error;
9546         }
9547
9548         /* There is no SLI3 failback for SLI4 devices. */
9549         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
9550             LPFC_SLI_INTF_VALID) {
9551                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9552                                 "2894 SLI_INTF reg contents invalid "
9553                                 "sli_intf reg 0x%x\n",
9554                                 phba->sli4_hba.sli_intf.word0);
9555                 return error;
9556         }
9557
9558         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9559         /*
9560          * Get the bus address of SLI4 device Bar regions and the
9561          * number of bytes required by each mapping. The mapping of the
9562          * particular PCI BARs regions is dependent on the type of
9563          * SLI4 device.
9564          */
9565         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
9566                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
9567                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
9568
9569                 /*
9570                  * Map SLI4 PCI Config Space Register base to a kernel virtual
9571                  * addr
9572                  */
9573                 phba->sli4_hba.conf_regs_memmap_p =
9574                         ioremap(phba->pci_bar0_map, bar0map_len);
9575                 if (!phba->sli4_hba.conf_regs_memmap_p) {
9576                         dev_printk(KERN_ERR, &pdev->dev,
9577                                    "ioremap failed for SLI4 PCI config "
9578                                    "registers.\n");
9579                         goto out;
9580                 }
9581                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
9582                 /* Set up BAR0 PCI config space register memory map */
9583                 lpfc_sli4_bar0_register_memmap(phba, if_type);
9584         } else {
9585                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
9586                 bar0map_len = pci_resource_len(pdev, 1);
9587                 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
9588                         dev_printk(KERN_ERR, &pdev->dev,
9589                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
9590                         goto out;
9591                 }
9592                 phba->sli4_hba.conf_regs_memmap_p =
9593                                 ioremap(phba->pci_bar0_map, bar0map_len);
9594                 if (!phba->sli4_hba.conf_regs_memmap_p) {
9595                         dev_printk(KERN_ERR, &pdev->dev,
9596                                 "ioremap failed for SLI4 PCI config "
9597                                 "registers.\n");
9598                                 goto out;
9599                 }
9600                 lpfc_sli4_bar0_register_memmap(phba, if_type);
9601         }
9602
9603         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
9604                 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
9605                         /*
9606                          * Map SLI4 if type 0 HBA Control Register base to a
9607                          * kernel virtual address and setup the registers.
9608                          */
9609                         phba->pci_bar1_map = pci_resource_start(pdev,
9610                                                                 PCI_64BIT_BAR2);
9611                         bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
9612                         phba->sli4_hba.ctrl_regs_memmap_p =
9613                                         ioremap(phba->pci_bar1_map,
9614                                                 bar1map_len);
9615                         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
9616                                 dev_err(&pdev->dev,
9617                                            "ioremap failed for SLI4 HBA "
9618                                             "control registers.\n");
9619                                 error = -ENOMEM;
9620                                 goto out_iounmap_conf;
9621                         }
9622                         phba->pci_bar2_memmap_p =
9623                                          phba->sli4_hba.ctrl_regs_memmap_p;
9624                         lpfc_sli4_bar1_register_memmap(phba, if_type);
9625                 } else {
9626                         error = -ENOMEM;
9627                         goto out_iounmap_conf;
9628                 }
9629         }
9630
9631         if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
9632             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
9633                 /*
9634                  * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
9635                  * virtual address and setup the registers.
9636                  */
9637                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
9638                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
9639                 phba->sli4_hba.drbl_regs_memmap_p =
9640                                 ioremap(phba->pci_bar1_map, bar1map_len);
9641                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
9642                         dev_err(&pdev->dev,
9643                            "ioremap failed for SLI4 HBA doorbell registers.\n");
9644                         goto out_iounmap_conf;
9645                 }
9646                 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
9647                 lpfc_sli4_bar1_register_memmap(phba, if_type);
9648         }
9649
9650         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
9651                 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
9652                         /*
9653                          * Map SLI4 if type 0 HBA Doorbell Register base to
9654                          * a kernel virtual address and setup the registers.
9655                          */
9656                         phba->pci_bar2_map = pci_resource_start(pdev,
9657                                                                 PCI_64BIT_BAR4);
9658                         bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
9659                         phba->sli4_hba.drbl_regs_memmap_p =
9660                                         ioremap(phba->pci_bar2_map,
9661                                                 bar2map_len);
9662                         if (!phba->sli4_hba.drbl_regs_memmap_p) {
9663                                 dev_err(&pdev->dev,
9664                                            "ioremap failed for SLI4 HBA"
9665                                            " doorbell registers.\n");
9666                                 error = -ENOMEM;
9667                                 goto out_iounmap_ctrl;
9668                         }
9669                         phba->pci_bar4_memmap_p =
9670                                         phba->sli4_hba.drbl_regs_memmap_p;
9671                         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
9672                         if (error)
9673                                 goto out_iounmap_all;
9674                 } else {
9675                         error = -ENOMEM;
9676                         goto out_iounmap_all;
9677                 }
9678         }
9679
9680         if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
9681             pci_resource_start(pdev, PCI_64BIT_BAR4)) {
9682                 /*
9683                  * Map SLI4 if type 6 HBA DPP Register base to a kernel
9684                  * virtual address and setup the registers.
9685                  */
9686                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
9687                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
9688                 phba->sli4_hba.dpp_regs_memmap_p =
9689                                 ioremap(phba->pci_bar2_map, bar2map_len);
9690                 if (!phba->sli4_hba.dpp_regs_memmap_p) {
9691                         dev_err(&pdev->dev,
9692                            "ioremap failed for SLI4 HBA dpp registers.\n");
9693                         goto out_iounmap_ctrl;
9694                 }
9695                 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
9696         }
9697
9698         /* Set up the EQ/CQ register handeling functions now */
9699         switch (if_type) {
9700         case LPFC_SLI_INTF_IF_TYPE_0:
9701         case LPFC_SLI_INTF_IF_TYPE_2:
9702                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
9703                 phba->sli4_hba.sli4_eq_release = lpfc_sli4_eq_release;
9704                 phba->sli4_hba.sli4_cq_release = lpfc_sli4_cq_release;
9705                 break;
9706         case LPFC_SLI_INTF_IF_TYPE_6:
9707                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
9708                 phba->sli4_hba.sli4_eq_release = lpfc_sli4_if6_eq_release;
9709                 phba->sli4_hba.sli4_cq_release = lpfc_sli4_if6_cq_release;
9710                 break;
9711         default:
9712                 break;
9713         }
9714
9715         return 0;
9716
9717 out_iounmap_all:
9718         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9719 out_iounmap_ctrl:
9720         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9721 out_iounmap_conf:
9722         iounmap(phba->sli4_hba.conf_regs_memmap_p);
9723 out:
9724         return error;
9725 }
9726
9727 /**
9728  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
9729  * @phba: pointer to lpfc hba data structure.
9730  *
9731  * This routine is invoked to unset the PCI device memory space for device
9732  * with SLI-4 interface spec.
9733  **/
9734 static void
9735 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
9736 {
9737         uint32_t if_type;
9738         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9739
9740         switch (if_type) {
9741         case LPFC_SLI_INTF_IF_TYPE_0:
9742                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9743                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9744                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9745                 break;
9746         case LPFC_SLI_INTF_IF_TYPE_2:
9747                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9748                 break;
9749         case LPFC_SLI_INTF_IF_TYPE_6:
9750                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9751                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9752                 break;
9753         case LPFC_SLI_INTF_IF_TYPE_1:
9754         default:
9755                 dev_printk(KERN_ERR, &phba->pcidev->dev,
9756                            "FATAL - unsupported SLI4 interface type - %d\n",
9757                            if_type);
9758                 break;
9759         }
9760 }
9761
9762 /**
9763  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
9764  * @phba: pointer to lpfc hba data structure.
9765  *
9766  * This routine is invoked to enable the MSI-X interrupt vectors to device
9767  * with SLI-3 interface specs.
9768  *
9769  * Return codes
9770  *   0 - successful
9771  *   other values - error
9772  **/
9773 static int
9774 lpfc_sli_enable_msix(struct lpfc_hba *phba)
9775 {
9776         int rc;
9777         LPFC_MBOXQ_t *pmb;
9778
9779         /* Set up MSI-X multi-message vectors */
9780         rc = pci_alloc_irq_vectors(phba->pcidev,
9781                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
9782         if (rc < 0) {
9783                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9784                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
9785                 goto vec_fail_out;
9786         }
9787
9788         /*
9789          * Assign MSI-X vectors to interrupt handlers
9790          */
9791
9792         /* vector-0 is associated to slow-path handler */
9793         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
9794                          &lpfc_sli_sp_intr_handler, 0,
9795                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
9796         if (rc) {
9797                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9798                                 "0421 MSI-X slow-path request_irq failed "
9799                                 "(%d)\n", rc);
9800                 goto msi_fail_out;
9801         }
9802
9803         /* vector-1 is associated to fast-path handler */
9804         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
9805                          &lpfc_sli_fp_intr_handler, 0,
9806                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
9807
9808         if (rc) {
9809                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9810                                 "0429 MSI-X fast-path request_irq failed "
9811                                 "(%d)\n", rc);
9812                 goto irq_fail_out;
9813         }
9814
9815         /*
9816          * Configure HBA MSI-X attention conditions to messages
9817          */
9818         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9819
9820         if (!pmb) {
9821                 rc = -ENOMEM;
9822                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9823                                 "0474 Unable to allocate memory for issuing "
9824                                 "MBOX_CONFIG_MSI command\n");
9825                 goto mem_fail_out;
9826         }
9827         rc = lpfc_config_msi(phba, pmb);
9828         if (rc)
9829                 goto mbx_fail_out;
9830         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9831         if (rc != MBX_SUCCESS) {
9832                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
9833                                 "0351 Config MSI mailbox command failed, "
9834                                 "mbxCmd x%x, mbxStatus x%x\n",
9835                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
9836                 goto mbx_fail_out;
9837         }
9838
9839         /* Free memory allocated for mailbox command */
9840         mempool_free(pmb, phba->mbox_mem_pool);
9841         return rc;
9842
9843 mbx_fail_out:
9844         /* Free memory allocated for mailbox command */
9845         mempool_free(pmb, phba->mbox_mem_pool);
9846
9847 mem_fail_out:
9848         /* free the irq already requested */
9849         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
9850
9851 irq_fail_out:
9852         /* free the irq already requested */
9853         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
9854
9855 msi_fail_out:
9856         /* Unconfigure MSI-X capability structure */
9857         pci_free_irq_vectors(phba->pcidev);
9858
9859 vec_fail_out:
9860         return rc;
9861 }
9862
9863 /**
9864  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
9865  * @phba: pointer to lpfc hba data structure.
9866  *
9867  * This routine is invoked to enable the MSI interrupt mode to device with
9868  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
9869  * enable the MSI vector. The device driver is responsible for calling the
9870  * request_irq() to register MSI vector with a interrupt the handler, which
9871  * is done in this function.
9872  *
9873  * Return codes
9874  *      0 - successful
9875  *      other values - error
9876  */
9877 static int
9878 lpfc_sli_enable_msi(struct lpfc_hba *phba)
9879 {
9880         int rc;
9881
9882         rc = pci_enable_msi(phba->pcidev);
9883         if (!rc)
9884                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9885                                 "0462 PCI enable MSI mode success.\n");
9886         else {
9887                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9888                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
9889                 return rc;
9890         }
9891
9892         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
9893                          0, LPFC_DRIVER_NAME, phba);
9894         if (rc) {
9895                 pci_disable_msi(phba->pcidev);
9896                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9897                                 "0478 MSI request_irq failed (%d)\n", rc);
9898         }
9899         return rc;
9900 }
9901
9902 /**
9903  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
9904  * @phba: pointer to lpfc hba data structure.
9905  *
9906  * This routine is invoked to enable device interrupt and associate driver's
9907  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
9908  * spec. Depends on the interrupt mode configured to the driver, the driver
9909  * will try to fallback from the configured interrupt mode to an interrupt
9910  * mode which is supported by the platform, kernel, and device in the order
9911  * of:
9912  * MSI-X -> MSI -> IRQ.
9913  *
9914  * Return codes
9915  *   0 - successful
9916  *   other values - error
9917  **/
9918 static uint32_t
9919 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9920 {
9921         uint32_t intr_mode = LPFC_INTR_ERROR;
9922         int retval;
9923
9924         if (cfg_mode == 2) {
9925                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
9926                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
9927                 if (!retval) {
9928                         /* Now, try to enable MSI-X interrupt mode */
9929                         retval = lpfc_sli_enable_msix(phba);
9930                         if (!retval) {
9931                                 /* Indicate initialization to MSI-X mode */
9932                                 phba->intr_type = MSIX;
9933                                 intr_mode = 2;
9934                         }
9935                 }
9936         }
9937
9938         /* Fallback to MSI if MSI-X initialization failed */
9939         if (cfg_mode >= 1 && phba->intr_type == NONE) {
9940                 retval = lpfc_sli_enable_msi(phba);
9941                 if (!retval) {
9942                         /* Indicate initialization to MSI mode */
9943                         phba->intr_type = MSI;
9944                         intr_mode = 1;
9945                 }
9946         }
9947
9948         /* Fallback to INTx if both MSI-X/MSI initalization failed */
9949         if (phba->intr_type == NONE) {
9950                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
9951                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9952                 if (!retval) {
9953                         /* Indicate initialization to INTx mode */
9954                         phba->intr_type = INTx;
9955                         intr_mode = 0;
9956                 }
9957         }
9958         return intr_mode;
9959 }
9960
9961 /**
9962  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
9963  * @phba: pointer to lpfc hba data structure.
9964  *
9965  * This routine is invoked to disable device interrupt and disassociate the
9966  * driver's interrupt handler(s) from interrupt vector(s) to device with
9967  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
9968  * release the interrupt vector(s) for the message signaled interrupt.
9969  **/
9970 static void
9971 lpfc_sli_disable_intr(struct lpfc_hba *phba)
9972 {
9973         int nr_irqs, i;
9974
9975         if (phba->intr_type == MSIX)
9976                 nr_irqs = LPFC_MSIX_VECTORS;
9977         else
9978                 nr_irqs = 1;
9979
9980         for (i = 0; i < nr_irqs; i++)
9981                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
9982         pci_free_irq_vectors(phba->pcidev);
9983
9984         /* Reset interrupt management states */
9985         phba->intr_type = NONE;
9986         phba->sli.slistat.sli_intr = 0;
9987 }
9988
9989 /**
9990  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
9991  * @phba: pointer to lpfc hba data structure.
9992  * @vectors: number of msix vectors allocated.
9993  *
9994  * The routine will figure out the CPU affinity assignment for every
9995  * MSI-X vector allocated for the HBA.  The hba_eq_hdl will be updated
9996  * with a pointer to the CPU mask that defines ALL the CPUs this vector
9997  * can be associated with. If the vector can be unquely associated with
9998  * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu.
9999  * In addition, the CPU to IO channel mapping will be calculated
10000  * and the phba->sli4_hba.cpu_map array will reflect this.
10001  */
10002 static void
10003 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
10004 {
10005         struct lpfc_vector_map_info *cpup;
10006         int index = 0;
10007         int vec = 0;
10008         int cpu;
10009 #ifdef CONFIG_X86
10010         struct cpuinfo_x86 *cpuinfo;
10011 #endif
10012
10013         /* Init cpu_map array */
10014         memset(phba->sli4_hba.cpu_map, 0xff,
10015                (sizeof(struct lpfc_vector_map_info) *
10016                phba->sli4_hba.num_present_cpu));
10017
10018         /* Update CPU map with physical id and core id of each CPU */
10019         cpup = phba->sli4_hba.cpu_map;
10020         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
10021 #ifdef CONFIG_X86
10022                 cpuinfo = &cpu_data(cpu);
10023                 cpup->phys_id = cpuinfo->phys_proc_id;
10024                 cpup->core_id = cpuinfo->cpu_core_id;
10025 #else
10026                 /* No distinction between CPUs for other platforms */
10027                 cpup->phys_id = 0;
10028                 cpup->core_id = 0;
10029 #endif
10030                 cpup->channel_id = index;  /* For now round robin */
10031                 cpup->irq = pci_irq_vector(phba->pcidev, vec);
10032                 vec++;
10033                 if (vec >= vectors)
10034                         vec = 0;
10035                 index++;
10036                 if (index >= phba->cfg_fcp_io_channel)
10037                         index = 0;
10038                 cpup++;
10039         }
10040 }
10041
10042
10043 /**
10044  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
10045  * @phba: pointer to lpfc hba data structure.
10046  *
10047  * This routine is invoked to enable the MSI-X interrupt vectors to device
10048  * with SLI-4 interface spec.
10049  *
10050  * Return codes
10051  * 0 - successful
10052  * other values - error
10053  **/
10054 static int
10055 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
10056 {
10057         int vectors, rc, index;
10058         char *name;
10059
10060         /* Set up MSI-X multi-message vectors */
10061         vectors = phba->io_channel_irqs;
10062         if (phba->cfg_fof)
10063                 vectors++;
10064
10065         rc = pci_alloc_irq_vectors(phba->pcidev,
10066                                 (phba->nvmet_support) ? 1 : 2,
10067                                 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
10068         if (rc < 0) {
10069                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10070                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
10071                 goto vec_fail_out;
10072         }
10073         vectors = rc;
10074
10075         /* Assign MSI-X vectors to interrupt handlers */
10076         for (index = 0; index < vectors; index++) {
10077                 name = phba->sli4_hba.hba_eq_hdl[index].handler_name;
10078                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
10079                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
10080                          LPFC_DRIVER_HANDLER_NAME"%d", index);
10081
10082                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
10083                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10084                 atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1);
10085                 if (phba->cfg_fof && (index == (vectors - 1)))
10086                         rc = request_irq(pci_irq_vector(phba->pcidev, index),
10087                                  &lpfc_sli4_fof_intr_handler, 0,
10088                                  name,
10089                                  &phba->sli4_hba.hba_eq_hdl[index]);
10090                 else
10091                         rc = request_irq(pci_irq_vector(phba->pcidev, index),
10092                                  &lpfc_sli4_hba_intr_handler, 0,
10093                                  name,
10094                                  &phba->sli4_hba.hba_eq_hdl[index]);
10095                 if (rc) {
10096                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10097                                         "0486 MSI-X fast-path (%d) "
10098                                         "request_irq failed (%d)\n", index, rc);
10099                         goto cfg_fail_out;
10100                 }
10101         }
10102
10103         if (phba->cfg_fof)
10104                 vectors--;
10105
10106         if (vectors != phba->io_channel_irqs) {
10107                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10108                                 "3238 Reducing IO channels to match number of "
10109                                 "MSI-X vectors, requested %d got %d\n",
10110                                 phba->io_channel_irqs, vectors);
10111                 if (phba->cfg_fcp_io_channel > vectors)
10112                         phba->cfg_fcp_io_channel = vectors;
10113                 if (phba->cfg_nvme_io_channel > vectors)
10114                         phba->cfg_nvme_io_channel = vectors;
10115                 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel)
10116                         phba->io_channel_irqs = phba->cfg_fcp_io_channel;
10117                 else
10118                         phba->io_channel_irqs = phba->cfg_nvme_io_channel;
10119         }
10120         lpfc_cpu_affinity_check(phba, vectors);
10121
10122         return rc;
10123
10124 cfg_fail_out:
10125         /* free the irq already requested */
10126         for (--index; index >= 0; index--)
10127                 free_irq(pci_irq_vector(phba->pcidev, index),
10128                                 &phba->sli4_hba.hba_eq_hdl[index]);
10129
10130         /* Unconfigure MSI-X capability structure */
10131         pci_free_irq_vectors(phba->pcidev);
10132
10133 vec_fail_out:
10134         return rc;
10135 }
10136
10137 /**
10138  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
10139  * @phba: pointer to lpfc hba data structure.
10140  *
10141  * This routine is invoked to enable the MSI interrupt mode to device with
10142  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
10143  * to enable the MSI vector. The device driver is responsible for calling
10144  * the request_irq() to register MSI vector with a interrupt the handler,
10145  * which is done in this function.
10146  *
10147  * Return codes
10148  *      0 - successful
10149  *      other values - error
10150  **/
10151 static int
10152 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
10153 {
10154         int rc, index;
10155
10156         rc = pci_enable_msi(phba->pcidev);
10157         if (!rc)
10158                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10159                                 "0487 PCI enable MSI mode success.\n");
10160         else {
10161                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10162                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
10163                 return rc;
10164         }
10165
10166         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
10167                          0, LPFC_DRIVER_NAME, phba);
10168         if (rc) {
10169                 pci_disable_msi(phba->pcidev);
10170                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10171                                 "0490 MSI request_irq failed (%d)\n", rc);
10172                 return rc;
10173         }
10174
10175         for (index = 0; index < phba->io_channel_irqs; index++) {
10176                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
10177                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10178         }
10179
10180         if (phba->cfg_fof) {
10181                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
10182                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10183         }
10184         return 0;
10185 }
10186
10187 /**
10188  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
10189  * @phba: pointer to lpfc hba data structure.
10190  *
10191  * This routine is invoked to enable device interrupt and associate driver's
10192  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
10193  * interface spec. Depends on the interrupt mode configured to the driver,
10194  * the driver will try to fallback from the configured interrupt mode to an
10195  * interrupt mode which is supported by the platform, kernel, and device in
10196  * the order of:
10197  * MSI-X -> MSI -> IRQ.
10198  *
10199  * Return codes
10200  *      0 - successful
10201  *      other values - error
10202  **/
10203 static uint32_t
10204 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10205 {
10206         uint32_t intr_mode = LPFC_INTR_ERROR;
10207         int retval, idx;
10208
10209         if (cfg_mode == 2) {
10210                 /* Preparation before conf_msi mbox cmd */
10211                 retval = 0;
10212                 if (!retval) {
10213                         /* Now, try to enable MSI-X interrupt mode */
10214                         retval = lpfc_sli4_enable_msix(phba);
10215                         if (!retval) {
10216                                 /* Indicate initialization to MSI-X mode */
10217                                 phba->intr_type = MSIX;
10218                                 intr_mode = 2;
10219                         }
10220                 }
10221         }
10222
10223         /* Fallback to MSI if MSI-X initialization failed */
10224         if (cfg_mode >= 1 && phba->intr_type == NONE) {
10225                 retval = lpfc_sli4_enable_msi(phba);
10226                 if (!retval) {
10227                         /* Indicate initialization to MSI mode */
10228                         phba->intr_type = MSI;
10229                         intr_mode = 1;
10230                 }
10231         }
10232
10233         /* Fallback to INTx if both MSI-X/MSI initalization failed */
10234         if (phba->intr_type == NONE) {
10235                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
10236                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10237                 if (!retval) {
10238                         struct lpfc_hba_eq_hdl *eqhdl;
10239
10240                         /* Indicate initialization to INTx mode */
10241                         phba->intr_type = INTx;
10242                         intr_mode = 0;
10243
10244                         for (idx = 0; idx < phba->io_channel_irqs; idx++) {
10245                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
10246                                 eqhdl->idx = idx;
10247                                 eqhdl->phba = phba;
10248                                 atomic_set(&eqhdl->hba_eq_in_use, 1);
10249                         }
10250                         if (phba->cfg_fof) {
10251                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
10252                                 eqhdl->idx = idx;
10253                                 eqhdl->phba = phba;
10254                                 atomic_set(&eqhdl->hba_eq_in_use, 1);
10255                         }
10256                 }
10257         }
10258         return intr_mode;
10259 }
10260
10261 /**
10262  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
10263  * @phba: pointer to lpfc hba data structure.
10264  *
10265  * This routine is invoked to disable device interrupt and disassociate
10266  * the driver's interrupt handler(s) from interrupt vector(s) to device
10267  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
10268  * will release the interrupt vector(s) for the message signaled interrupt.
10269  **/
10270 static void
10271 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
10272 {
10273         /* Disable the currently initialized interrupt mode */
10274         if (phba->intr_type == MSIX) {
10275                 int index;
10276
10277                 /* Free up MSI-X multi-message vectors */
10278                 for (index = 0; index < phba->io_channel_irqs; index++)
10279                         free_irq(pci_irq_vector(phba->pcidev, index),
10280                                         &phba->sli4_hba.hba_eq_hdl[index]);
10281
10282                 if (phba->cfg_fof)
10283                         free_irq(pci_irq_vector(phba->pcidev, index),
10284                                         &phba->sli4_hba.hba_eq_hdl[index]);
10285         } else {
10286                 free_irq(phba->pcidev->irq, phba);
10287         }
10288
10289         pci_free_irq_vectors(phba->pcidev);
10290
10291         /* Reset interrupt management states */
10292         phba->intr_type = NONE;
10293         phba->sli.slistat.sli_intr = 0;
10294 }
10295
10296 /**
10297  * lpfc_unset_hba - Unset SLI3 hba device initialization
10298  * @phba: pointer to lpfc hba data structure.
10299  *
10300  * This routine is invoked to unset the HBA device initialization steps to
10301  * a device with SLI-3 interface spec.
10302  **/
10303 static void
10304 lpfc_unset_hba(struct lpfc_hba *phba)
10305 {
10306         struct lpfc_vport *vport = phba->pport;
10307         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
10308
10309         spin_lock_irq(shost->host_lock);
10310         vport->load_flag |= FC_UNLOADING;
10311         spin_unlock_irq(shost->host_lock);
10312
10313         kfree(phba->vpi_bmask);
10314         kfree(phba->vpi_ids);
10315
10316         lpfc_stop_hba_timers(phba);
10317
10318         phba->pport->work_port_events = 0;
10319
10320         lpfc_sli_hba_down(phba);
10321
10322         lpfc_sli_brdrestart(phba);
10323
10324         lpfc_sli_disable_intr(phba);
10325
10326         return;
10327 }
10328
10329 /**
10330  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
10331  * @phba: Pointer to HBA context object.
10332  *
10333  * This function is called in the SLI4 code path to wait for completion
10334  * of device's XRIs exchange busy. It will check the XRI exchange busy
10335  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
10336  * that, it will check the XRI exchange busy on outstanding FCP and ELS
10337  * I/Os every 30 seconds, log error message, and wait forever. Only when
10338  * all XRI exchange busy complete, the driver unload shall proceed with
10339  * invoking the function reset ioctl mailbox command to the CNA and the
10340  * the rest of the driver unload resource release.
10341  **/
10342 static void
10343 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
10344 {
10345         int wait_time = 0;
10346         int nvme_xri_cmpl = 1;
10347         int nvmet_xri_cmpl = 1;
10348         int fcp_xri_cmpl = 1;
10349         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10350
10351         /* Driver just aborted IOs during the hba_unset process.  Pause
10352          * here to give the HBA time to complete the IO and get entries
10353          * into the abts lists.
10354          */
10355         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
10356
10357         /* Wait for NVME pending IO to flush back to transport. */
10358         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
10359                 lpfc_nvme_wait_for_io_drain(phba);
10360
10361         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
10362                 fcp_xri_cmpl =
10363                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
10364         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10365                 nvme_xri_cmpl =
10366                         list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
10367                 nvmet_xri_cmpl =
10368                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10369         }
10370
10371         while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl ||
10372                !nvmet_xri_cmpl) {
10373                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
10374                         if (!nvmet_xri_cmpl)
10375                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10376                                                 "6424 NVMET XRI exchange busy "
10377                                                 "wait time: %d seconds.\n",
10378                                                 wait_time/1000);
10379                         if (!nvme_xri_cmpl)
10380                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10381                                                 "6100 NVME XRI exchange busy "
10382                                                 "wait time: %d seconds.\n",
10383                                                 wait_time/1000);
10384                         if (!fcp_xri_cmpl)
10385                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10386                                                 "2877 FCP XRI exchange busy "
10387                                                 "wait time: %d seconds.\n",
10388                                                 wait_time/1000);
10389                         if (!els_xri_cmpl)
10390                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10391                                                 "2878 ELS XRI exchange busy "
10392                                                 "wait time: %d seconds.\n",
10393                                                 wait_time/1000);
10394                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
10395                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
10396                 } else {
10397                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
10398                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
10399                 }
10400                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10401                         nvme_xri_cmpl = list_empty(
10402                                 &phba->sli4_hba.lpfc_abts_nvme_buf_list);
10403                         nvmet_xri_cmpl = list_empty(
10404                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10405                 }
10406
10407                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
10408                         fcp_xri_cmpl = list_empty(
10409                                 &phba->sli4_hba.lpfc_abts_scsi_buf_list);
10410
10411                 els_xri_cmpl =
10412                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10413
10414         }
10415 }
10416
10417 /**
10418  * lpfc_sli4_hba_unset - Unset the fcoe hba
10419  * @phba: Pointer to HBA context object.
10420  *
10421  * This function is called in the SLI4 code path to reset the HBA's FCoE
10422  * function. The caller is not required to hold any lock. This routine
10423  * issues PCI function reset mailbox command to reset the FCoE function.
10424  * At the end of the function, it calls lpfc_hba_down_post function to
10425  * free any pending commands.
10426  **/
10427 static void
10428 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
10429 {
10430         int wait_cnt = 0;
10431         LPFC_MBOXQ_t *mboxq;
10432         struct pci_dev *pdev = phba->pcidev;
10433
10434         lpfc_stop_hba_timers(phba);
10435         phba->sli4_hba.intr_enable = 0;
10436
10437         /*
10438          * Gracefully wait out the potential current outstanding asynchronous
10439          * mailbox command.
10440          */
10441
10442         /* First, block any pending async mailbox command from posted */
10443         spin_lock_irq(&phba->hbalock);
10444         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10445         spin_unlock_irq(&phba->hbalock);
10446         /* Now, trying to wait it out if we can */
10447         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10448                 msleep(10);
10449                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
10450                         break;
10451         }
10452         /* Forcefully release the outstanding mailbox command if timed out */
10453         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10454                 spin_lock_irq(&phba->hbalock);
10455                 mboxq = phba->sli.mbox_active;
10456                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
10457                 __lpfc_mbox_cmpl_put(phba, mboxq);
10458                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10459                 phba->sli.mbox_active = NULL;
10460                 spin_unlock_irq(&phba->hbalock);
10461         }
10462
10463         /* Abort all iocbs associated with the hba */
10464         lpfc_sli_hba_iocb_abort(phba);
10465
10466         /* Wait for completion of device XRI exchange busy */
10467         lpfc_sli4_xri_exchange_busy_wait(phba);
10468
10469         /* Disable PCI subsystem interrupt */
10470         lpfc_sli4_disable_intr(phba);
10471
10472         /* Disable SR-IOV if enabled */
10473         if (phba->cfg_sriov_nr_virtfn)
10474                 pci_disable_sriov(pdev);
10475
10476         /* Stop kthread signal shall trigger work_done one more time */
10477         kthread_stop(phba->worker_thread);
10478
10479         /* Unset the queues shared with the hardware then release all
10480          * allocated resources.
10481          */
10482         lpfc_sli4_queue_unset(phba);
10483         lpfc_sli4_queue_destroy(phba);
10484
10485         /* Reset SLI4 HBA FCoE function */
10486         lpfc_pci_function_reset(phba);
10487
10488         /* Stop the SLI4 device port */
10489         phba->pport->work_port_events = 0;
10490 }
10491
10492 /**
10493  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
10494  * @phba: Pointer to HBA context object.
10495  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10496  *
10497  * This function is called in the SLI4 code path to read the port's
10498  * sli4 capabilities.
10499  *
10500  * This function may be be called from any context that can block-wait
10501  * for the completion.  The expectation is that this routine is called
10502  * typically from probe_one or from the online routine.
10503  **/
10504 int
10505 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10506 {
10507         int rc;
10508         struct lpfc_mqe *mqe = &mboxq->u.mqe;
10509         struct lpfc_pc_sli4_params *sli4_params;
10510         uint32_t mbox_tmo;
10511         int length;
10512         bool exp_wqcq_pages = true;
10513         struct lpfc_sli4_parameters *mbx_sli4_parameters;
10514
10515         /*
10516          * By default, the driver assumes the SLI4 port requires RPI
10517          * header postings.  The SLI4_PARAM response will correct this
10518          * assumption.
10519          */
10520         phba->sli4_hba.rpi_hdrs_in_use = 1;
10521
10522         /* Read the port's SLI4 Config Parameters */
10523         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
10524                   sizeof(struct lpfc_sli4_cfg_mhdr));
10525         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10526                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
10527                          length, LPFC_SLI4_MBX_EMBED);
10528         if (!phba->sli4_hba.intr_enable)
10529                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10530         else {
10531                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10532                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10533         }
10534         if (unlikely(rc))
10535                 return rc;
10536         sli4_params = &phba->sli4_hba.pc_sli4_params;
10537         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
10538         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
10539         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
10540         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
10541         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
10542                                              mbx_sli4_parameters);
10543         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
10544                                              mbx_sli4_parameters);
10545         if (bf_get(cfg_phwq, mbx_sli4_parameters))
10546                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
10547         else
10548                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
10549         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
10550         sli4_params->loopbk_scope = bf_get(cfg_loopbk_scope,
10551                                            mbx_sli4_parameters);
10552         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
10553         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
10554         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
10555         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
10556         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
10557         sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
10558         sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
10559         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
10560         sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
10561         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
10562                                             mbx_sli4_parameters);
10563         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
10564         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
10565                                            mbx_sli4_parameters);
10566         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
10567         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
10568         phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
10569                               bf_get(cfg_xib, mbx_sli4_parameters));
10570
10571         if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) ||
10572             !phba->nvme_support) {
10573                 phba->nvme_support = 0;
10574                 phba->nvmet_support = 0;
10575                 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_OFF;
10576                 phba->cfg_nvme_io_channel = 0;
10577                 phba->io_channel_irqs = phba->cfg_fcp_io_channel;
10578                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
10579                                 "6101 Disabling NVME support: "
10580                                 "Not supported by firmware: %d %d\n",
10581                                 bf_get(cfg_nvme, mbx_sli4_parameters),
10582                                 bf_get(cfg_xib, mbx_sli4_parameters));
10583
10584                 /* If firmware doesn't support NVME, just use SCSI support */
10585                 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
10586                         return -ENODEV;
10587                 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
10588         }
10589
10590         /* Only embed PBDE for if_type 6, PBDE support requires xib be set */
10591         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
10592             LPFC_SLI_INTF_IF_TYPE_6) || (!bf_get(cfg_xib, mbx_sli4_parameters)))
10593                 phba->cfg_enable_pbde = 0;
10594
10595         /*
10596          * To support Suppress Response feature we must satisfy 3 conditions.
10597          * lpfc_suppress_rsp module parameter must be set (default).
10598          * In SLI4-Parameters Descriptor:
10599          * Extended Inline Buffers (XIB) must be supported.
10600          * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
10601          * (double negative).
10602          */
10603         if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
10604             !(bf_get(cfg_nosr, mbx_sli4_parameters)))
10605                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
10606         else
10607                 phba->cfg_suppress_rsp = 0;
10608
10609         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
10610                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
10611
10612         /* Make sure that sge_supp_len can be handled by the driver */
10613         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10614                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10615
10616         /*
10617          * Check whether the adapter supports an embedded copy of the
10618          * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
10619          * to use this option, 128-byte WQEs must be used.
10620          */
10621         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
10622                 phba->fcp_embed_io = 1;
10623         else
10624                 phba->fcp_embed_io = 0;
10625
10626         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
10627                         "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
10628                         bf_get(cfg_xib, mbx_sli4_parameters),
10629                         phba->cfg_enable_pbde,
10630                         phba->fcp_embed_io, phba->nvme_support,
10631                         phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
10632
10633         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
10634             LPFC_SLI_INTF_IF_TYPE_2) &&
10635             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
10636                  LPFC_SLI_INTF_FAMILY_LNCR_A0))
10637                 exp_wqcq_pages = false;
10638
10639         if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
10640             (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
10641             exp_wqcq_pages &&
10642             (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
10643                 phba->enab_exp_wqcq_pages = 1;
10644         else
10645                 phba->enab_exp_wqcq_pages = 0;
10646         /*
10647          * Check if the SLI port supports MDS Diagnostics
10648          */
10649         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
10650                 phba->mds_diags_support = 1;
10651         else
10652                 phba->mds_diags_support = 0;
10653         return 0;
10654 }
10655
10656 /**
10657  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
10658  * @pdev: pointer to PCI device
10659  * @pid: pointer to PCI device identifier
10660  *
10661  * This routine is to be called to attach a device with SLI-3 interface spec
10662  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10663  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10664  * information of the device and driver to see if the driver state that it can
10665  * support this kind of device. If the match is successful, the driver core
10666  * invokes this routine. If this routine determines it can claim the HBA, it
10667  * does all the initialization that it needs to do to handle the HBA properly.
10668  *
10669  * Return code
10670  *      0 - driver can claim the device
10671  *      negative value - driver can not claim the device
10672  **/
10673 static int
10674 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
10675 {
10676         struct lpfc_hba   *phba;
10677         struct lpfc_vport *vport = NULL;
10678         struct Scsi_Host  *shost = NULL;
10679         int error;
10680         uint32_t cfg_mode, intr_mode;
10681
10682         /* Allocate memory for HBA structure */
10683         phba = lpfc_hba_alloc(pdev);
10684         if (!phba)
10685                 return -ENOMEM;
10686
10687         /* Perform generic PCI device enabling operation */
10688         error = lpfc_enable_pci_dev(phba);
10689         if (error)
10690                 goto out_free_phba;
10691
10692         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
10693         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
10694         if (error)
10695                 goto out_disable_pci_dev;
10696
10697         /* Set up SLI-3 specific device PCI memory space */
10698         error = lpfc_sli_pci_mem_setup(phba);
10699         if (error) {
10700                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10701                                 "1402 Failed to set up pci memory space.\n");
10702                 goto out_disable_pci_dev;
10703         }
10704
10705         /* Set up SLI-3 specific device driver resources */
10706         error = lpfc_sli_driver_resource_setup(phba);
10707         if (error) {
10708                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10709                                 "1404 Failed to set up driver resource.\n");
10710                 goto out_unset_pci_mem_s3;
10711         }
10712
10713         /* Initialize and populate the iocb list per host */
10714
10715         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
10716         if (error) {
10717                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10718                                 "1405 Failed to initialize iocb list.\n");
10719                 goto out_unset_driver_resource_s3;
10720         }
10721
10722         /* Set up common device driver resources */
10723         error = lpfc_setup_driver_resource_phase2(phba);
10724         if (error) {
10725                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10726                                 "1406 Failed to set up driver resource.\n");
10727                 goto out_free_iocb_list;
10728         }
10729
10730         /* Get the default values for Model Name and Description */
10731         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10732
10733         /* Create SCSI host to the physical port */
10734         error = lpfc_create_shost(phba);
10735         if (error) {
10736                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10737                                 "1407 Failed to create scsi host.\n");
10738                 goto out_unset_driver_resource;
10739         }
10740
10741         /* Configure sysfs attributes */
10742         vport = phba->pport;
10743         error = lpfc_alloc_sysfs_attr(vport);
10744         if (error) {
10745                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10746                                 "1476 Failed to allocate sysfs attr\n");
10747                 goto out_destroy_shost;
10748         }
10749
10750         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10751         /* Now, trying to enable interrupt and bring up the device */
10752         cfg_mode = phba->cfg_use_msi;
10753         while (true) {
10754                 /* Put device to a known state before enabling interrupt */
10755                 lpfc_stop_port(phba);
10756                 /* Configure and enable interrupt */
10757                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
10758                 if (intr_mode == LPFC_INTR_ERROR) {
10759                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10760                                         "0431 Failed to enable interrupt.\n");
10761                         error = -ENODEV;
10762                         goto out_free_sysfs_attr;
10763                 }
10764                 /* SLI-3 HBA setup */
10765                 if (lpfc_sli_hba_setup(phba)) {
10766                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10767                                         "1477 Failed to set up hba\n");
10768                         error = -ENODEV;
10769                         goto out_remove_device;
10770                 }
10771
10772                 /* Wait 50ms for the interrupts of previous mailbox commands */
10773                 msleep(50);
10774                 /* Check active interrupts on message signaled interrupts */
10775                 if (intr_mode == 0 ||
10776                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
10777                         /* Log the current active interrupt mode */
10778                         phba->intr_mode = intr_mode;
10779                         lpfc_log_intr_mode(phba, intr_mode);
10780                         break;
10781                 } else {
10782                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10783                                         "0447 Configure interrupt mode (%d) "
10784                                         "failed active interrupt test.\n",
10785                                         intr_mode);
10786                         /* Disable the current interrupt mode */
10787                         lpfc_sli_disable_intr(phba);
10788                         /* Try next level of interrupt mode */
10789                         cfg_mode = --intr_mode;
10790                 }
10791         }
10792
10793         /* Perform post initialization setup */
10794         lpfc_post_init_setup(phba);
10795
10796         /* Check if there are static vports to be created. */
10797         lpfc_create_static_vport(phba);
10798
10799         return 0;
10800
10801 out_remove_device:
10802         lpfc_unset_hba(phba);
10803 out_free_sysfs_attr:
10804         lpfc_free_sysfs_attr(vport);
10805 out_destroy_shost:
10806         lpfc_destroy_shost(phba);
10807 out_unset_driver_resource:
10808         lpfc_unset_driver_resource_phase2(phba);
10809 out_free_iocb_list:
10810         lpfc_free_iocb_list(phba);
10811 out_unset_driver_resource_s3:
10812         lpfc_sli_driver_resource_unset(phba);
10813 out_unset_pci_mem_s3:
10814         lpfc_sli_pci_mem_unset(phba);
10815 out_disable_pci_dev:
10816         lpfc_disable_pci_dev(phba);
10817         if (shost)
10818                 scsi_host_put(shost);
10819 out_free_phba:
10820         lpfc_hba_free(phba);
10821         return error;
10822 }
10823
10824 /**
10825  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
10826  * @pdev: pointer to PCI device
10827  *
10828  * This routine is to be called to disattach a device with SLI-3 interface
10829  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10830  * removed from PCI bus, it performs all the necessary cleanup for the HBA
10831  * device to be removed from the PCI subsystem properly.
10832  **/
10833 static void
10834 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
10835 {
10836         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
10837         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10838         struct lpfc_vport **vports;
10839         struct lpfc_hba   *phba = vport->phba;
10840         int i;
10841
10842         spin_lock_irq(&phba->hbalock);
10843         vport->load_flag |= FC_UNLOADING;
10844         spin_unlock_irq(&phba->hbalock);
10845
10846         lpfc_free_sysfs_attr(vport);
10847
10848         /* Release all the vports against this physical port */
10849         vports = lpfc_create_vport_work_array(phba);
10850         if (vports != NULL)
10851                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10852                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10853                                 continue;
10854                         fc_vport_terminate(vports[i]->fc_vport);
10855                 }
10856         lpfc_destroy_vport_work_array(phba, vports);
10857
10858         /* Remove FC host and then SCSI host with the physical port */
10859         fc_remove_host(shost);
10860         scsi_remove_host(shost);
10861
10862         lpfc_cleanup(vport);
10863
10864         /*
10865          * Bring down the SLI Layer. This step disable all interrupts,
10866          * clears the rings, discards all mailbox commands, and resets
10867          * the HBA.
10868          */
10869
10870         /* HBA interrupt will be disabled after this call */
10871         lpfc_sli_hba_down(phba);
10872         /* Stop kthread signal shall trigger work_done one more time */
10873         kthread_stop(phba->worker_thread);
10874         /* Final cleanup of txcmplq and reset the HBA */
10875         lpfc_sli_brdrestart(phba);
10876
10877         kfree(phba->vpi_bmask);
10878         kfree(phba->vpi_ids);
10879
10880         lpfc_stop_hba_timers(phba);
10881         spin_lock_irq(&phba->hbalock);
10882         list_del_init(&vport->listentry);
10883         spin_unlock_irq(&phba->hbalock);
10884
10885         lpfc_debugfs_terminate(vport);
10886
10887         /* Disable SR-IOV if enabled */
10888         if (phba->cfg_sriov_nr_virtfn)
10889                 pci_disable_sriov(pdev);
10890
10891         /* Disable interrupt */
10892         lpfc_sli_disable_intr(phba);
10893
10894         scsi_host_put(shost);
10895
10896         /*
10897          * Call scsi_free before mem_free since scsi bufs are released to their
10898          * corresponding pools here.
10899          */
10900         lpfc_scsi_free(phba);
10901         lpfc_mem_free_all(phba);
10902
10903         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
10904                           phba->hbqslimp.virt, phba->hbqslimp.phys);
10905
10906         /* Free resources associated with SLI2 interface */
10907         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
10908                           phba->slim2p.virt, phba->slim2p.phys);
10909
10910         /* unmap adapter SLIM and Control Registers */
10911         iounmap(phba->ctrl_regs_memmap_p);
10912         iounmap(phba->slim_memmap_p);
10913
10914         lpfc_hba_free(phba);
10915
10916         pci_release_mem_regions(pdev);
10917         pci_disable_device(pdev);
10918 }
10919
10920 /**
10921  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
10922  * @pdev: pointer to PCI device
10923  * @msg: power management message
10924  *
10925  * This routine is to be called from the kernel's PCI subsystem to support
10926  * system Power Management (PM) to device with SLI-3 interface spec. When
10927  * PM invokes this method, it quiesces the device by stopping the driver's
10928  * worker thread for the device, turning off device's interrupt and DMA,
10929  * and bring the device offline. Note that as the driver implements the
10930  * minimum PM requirements to a power-aware driver's PM support for the
10931  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10932  * to the suspend() method call will be treated as SUSPEND and the driver will
10933  * fully reinitialize its device during resume() method call, the driver will
10934  * set device to PCI_D3hot state in PCI config space instead of setting it
10935  * according to the @msg provided by the PM.
10936  *
10937  * Return code
10938  *      0 - driver suspended the device
10939  *      Error otherwise
10940  **/
10941 static int
10942 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
10943 {
10944         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10945         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10946
10947         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10948                         "0473 PCI device Power Management suspend.\n");
10949
10950         /* Bring down the device */
10951         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10952         lpfc_offline(phba);
10953         kthread_stop(phba->worker_thread);
10954
10955         /* Disable interrupt from device */
10956         lpfc_sli_disable_intr(phba);
10957
10958         /* Save device state to PCI config space */
10959         pci_save_state(pdev);
10960         pci_set_power_state(pdev, PCI_D3hot);
10961
10962         return 0;
10963 }
10964
10965 /**
10966  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
10967  * @pdev: pointer to PCI device
10968  *
10969  * This routine is to be called from the kernel's PCI subsystem to support
10970  * system Power Management (PM) to device with SLI-3 interface spec. When PM
10971  * invokes this method, it restores the device's PCI config space state and
10972  * fully reinitializes the device and brings it online. Note that as the
10973  * driver implements the minimum PM requirements to a power-aware driver's
10974  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
10975  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
10976  * driver will fully reinitialize its device during resume() method call,
10977  * the device will be set to PCI_D0 directly in PCI config space before
10978  * restoring the state.
10979  *
10980  * Return code
10981  *      0 - driver suspended the device
10982  *      Error otherwise
10983  **/
10984 static int
10985 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
10986 {
10987         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10988         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10989         uint32_t intr_mode;
10990         int error;
10991
10992         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10993                         "0452 PCI device Power Management resume.\n");
10994
10995         /* Restore device state from PCI config space */
10996         pci_set_power_state(pdev, PCI_D0);
10997         pci_restore_state(pdev);
10998
10999         /*
11000          * As the new kernel behavior of pci_restore_state() API call clears
11001          * device saved_state flag, need to save the restored state again.
11002          */
11003         pci_save_state(pdev);
11004
11005         if (pdev->is_busmaster)
11006                 pci_set_master(pdev);
11007
11008         /* Startup the kernel thread for this host adapter. */
11009         phba->worker_thread = kthread_run(lpfc_do_work, phba,
11010                                         "lpfc_worker_%d", phba->brd_no);
11011         if (IS_ERR(phba->worker_thread)) {
11012                 error = PTR_ERR(phba->worker_thread);
11013                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11014                                 "0434 PM resume failed to start worker "
11015                                 "thread: error=x%x.\n", error);
11016                 return error;
11017         }
11018
11019         /* Configure and enable interrupt */
11020         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
11021         if (intr_mode == LPFC_INTR_ERROR) {
11022                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11023                                 "0430 PM resume Failed to enable interrupt\n");
11024                 return -EIO;
11025         } else
11026                 phba->intr_mode = intr_mode;
11027
11028         /* Restart HBA and bring it online */
11029         lpfc_sli_brdrestart(phba);
11030         lpfc_online(phba);
11031
11032         /* Log the current active interrupt mode */
11033         lpfc_log_intr_mode(phba, phba->intr_mode);
11034
11035         return 0;
11036 }
11037
11038 /**
11039  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
11040  * @phba: pointer to lpfc hba data structure.
11041  *
11042  * This routine is called to prepare the SLI3 device for PCI slot recover. It
11043  * aborts all the outstanding SCSI I/Os to the pci device.
11044  **/
11045 static void
11046 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
11047 {
11048         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11049                         "2723 PCI channel I/O abort preparing for recovery\n");
11050
11051         /*
11052          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
11053          * and let the SCSI mid-layer to retry them to recover.
11054          */
11055         lpfc_sli_abort_fcp_rings(phba);
11056 }
11057
11058 /**
11059  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
11060  * @phba: pointer to lpfc hba data structure.
11061  *
11062  * This routine is called to prepare the SLI3 device for PCI slot reset. It
11063  * disables the device interrupt and pci device, and aborts the internal FCP
11064  * pending I/Os.
11065  **/
11066 static void
11067 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
11068 {
11069         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11070                         "2710 PCI channel disable preparing for reset\n");
11071
11072         /* Block any management I/Os to the device */
11073         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
11074
11075         /* Block all SCSI devices' I/Os on the host */
11076         lpfc_scsi_dev_block(phba);
11077
11078         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
11079         lpfc_sli_flush_fcp_rings(phba);
11080
11081         /* stop all timers */
11082         lpfc_stop_hba_timers(phba);
11083
11084         /* Disable interrupt and pci device */
11085         lpfc_sli_disable_intr(phba);
11086         pci_disable_device(phba->pcidev);
11087 }
11088
11089 /**
11090  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
11091  * @phba: pointer to lpfc hba data structure.
11092  *
11093  * This routine is called to prepare the SLI3 device for PCI slot permanently
11094  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
11095  * pending I/Os.
11096  **/
11097 static void
11098 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
11099 {
11100         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11101                         "2711 PCI channel permanent disable for failure\n");
11102         /* Block all SCSI devices' I/Os on the host */
11103         lpfc_scsi_dev_block(phba);
11104
11105         /* stop all timers */
11106         lpfc_stop_hba_timers(phba);
11107
11108         /* Clean up all driver's outstanding SCSI I/Os */
11109         lpfc_sli_flush_fcp_rings(phba);
11110 }
11111
11112 /**
11113  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
11114  * @pdev: pointer to PCI device.
11115  * @state: the current PCI connection state.
11116  *
11117  * This routine is called from the PCI subsystem for I/O error handling to
11118  * device with SLI-3 interface spec. This function is called by the PCI
11119  * subsystem after a PCI bus error affecting this device has been detected.
11120  * When this function is invoked, it will need to stop all the I/Os and
11121  * interrupt(s) to the device. Once that is done, it will return
11122  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
11123  * as desired.
11124  *
11125  * Return codes
11126  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
11127  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11128  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11129  **/
11130 static pci_ers_result_t
11131 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
11132 {
11133         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11134         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11135
11136         switch (state) {
11137         case pci_channel_io_normal:
11138                 /* Non-fatal error, prepare for recovery */
11139                 lpfc_sli_prep_dev_for_recover(phba);
11140                 return PCI_ERS_RESULT_CAN_RECOVER;
11141         case pci_channel_io_frozen:
11142                 /* Fatal error, prepare for slot reset */
11143                 lpfc_sli_prep_dev_for_reset(phba);
11144                 return PCI_ERS_RESULT_NEED_RESET;
11145         case pci_channel_io_perm_failure:
11146                 /* Permanent failure, prepare for device down */
11147                 lpfc_sli_prep_dev_for_perm_failure(phba);
11148                 return PCI_ERS_RESULT_DISCONNECT;
11149         default:
11150                 /* Unknown state, prepare and request slot reset */
11151                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11152                                 "0472 Unknown PCI error state: x%x\n", state);
11153                 lpfc_sli_prep_dev_for_reset(phba);
11154                 return PCI_ERS_RESULT_NEED_RESET;
11155         }
11156 }
11157
11158 /**
11159  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
11160  * @pdev: pointer to PCI device.
11161  *
11162  * This routine is called from the PCI subsystem for error handling to
11163  * device with SLI-3 interface spec. This is called after PCI bus has been
11164  * reset to restart the PCI card from scratch, as if from a cold-boot.
11165  * During the PCI subsystem error recovery, after driver returns
11166  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
11167  * recovery and then call this routine before calling the .resume method
11168  * to recover the device. This function will initialize the HBA device,
11169  * enable the interrupt, but it will just put the HBA to offline state
11170  * without passing any I/O traffic.
11171  *
11172  * Return codes
11173  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11174  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11175  */
11176 static pci_ers_result_t
11177 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
11178 {
11179         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11180         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11181         struct lpfc_sli *psli = &phba->sli;
11182         uint32_t intr_mode;
11183
11184         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
11185         if (pci_enable_device_mem(pdev)) {
11186                 printk(KERN_ERR "lpfc: Cannot re-enable "
11187                         "PCI device after reset.\n");
11188                 return PCI_ERS_RESULT_DISCONNECT;
11189         }
11190
11191         pci_restore_state(pdev);
11192
11193         /*
11194          * As the new kernel behavior of pci_restore_state() API call clears
11195          * device saved_state flag, need to save the restored state again.
11196          */
11197         pci_save_state(pdev);
11198
11199         if (pdev->is_busmaster)
11200                 pci_set_master(pdev);
11201
11202         spin_lock_irq(&phba->hbalock);
11203         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
11204         spin_unlock_irq(&phba->hbalock);
11205
11206         /* Configure and enable interrupt */
11207         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
11208         if (intr_mode == LPFC_INTR_ERROR) {
11209                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11210                                 "0427 Cannot re-enable interrupt after "
11211                                 "slot reset.\n");
11212                 return PCI_ERS_RESULT_DISCONNECT;
11213         } else
11214                 phba->intr_mode = intr_mode;
11215
11216         /* Take device offline, it will perform cleanup */
11217         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11218         lpfc_offline(phba);
11219         lpfc_sli_brdrestart(phba);
11220
11221         /* Log the current active interrupt mode */
11222         lpfc_log_intr_mode(phba, phba->intr_mode);
11223
11224         return PCI_ERS_RESULT_RECOVERED;
11225 }
11226
11227 /**
11228  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
11229  * @pdev: pointer to PCI device
11230  *
11231  * This routine is called from the PCI subsystem for error handling to device
11232  * with SLI-3 interface spec. It is called when kernel error recovery tells
11233  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
11234  * error recovery. After this call, traffic can start to flow from this device
11235  * again.
11236  */
11237 static void
11238 lpfc_io_resume_s3(struct pci_dev *pdev)
11239 {
11240         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11241         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11242
11243         /* Bring device online, it will be no-op for non-fatal error resume */
11244         lpfc_online(phba);
11245
11246         /* Clean up Advanced Error Reporting (AER) if needed */
11247         if (phba->hba_flag & HBA_AER_ENABLED)
11248                 pci_cleanup_aer_uncorrect_error_status(pdev);
11249 }
11250
11251 /**
11252  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
11253  * @phba: pointer to lpfc hba data structure.
11254  *
11255  * returns the number of ELS/CT IOCBs to reserve
11256  **/
11257 int
11258 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
11259 {
11260         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
11261
11262         if (phba->sli_rev == LPFC_SLI_REV4) {
11263                 if (max_xri <= 100)
11264                         return 10;
11265                 else if (max_xri <= 256)
11266                         return 25;
11267                 else if (max_xri <= 512)
11268                         return 50;
11269                 else if (max_xri <= 1024)
11270                         return 100;
11271                 else if (max_xri <= 1536)
11272                         return 150;
11273                 else if (max_xri <= 2048)
11274                         return 200;
11275                 else
11276                         return 250;
11277         } else
11278                 return 0;
11279 }
11280
11281 /**
11282  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
11283  * @phba: pointer to lpfc hba data structure.
11284  *
11285  * returns the number of ELS/CT + NVMET IOCBs to reserve
11286  **/
11287 int
11288 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
11289 {
11290         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
11291
11292         if (phba->nvmet_support)
11293                 max_xri += LPFC_NVMET_BUF_POST;
11294         return max_xri;
11295 }
11296
11297
11298 static void
11299 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
11300         uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
11301         const struct firmware *fw)
11302 {
11303         if ((offset == ADD_STATUS_FW_NOT_SUPPORTED) ||
11304             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC &&
11305              magic_number != MAGIC_NUMER_G6) ||
11306             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC &&
11307              magic_number != MAGIC_NUMER_G7))
11308                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11309                         "3030 This firmware version is not supported on "
11310                         "this HBA model. Device:%x Magic:%x Type:%x "
11311                         "ID:%x Size %d %zd\n",
11312                         phba->pcidev->device, magic_number, ftype, fid,
11313                         fsize, fw->size);
11314         else
11315                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11316                         "3022 FW Download failed. Device:%x Magic:%x Type:%x "
11317                         "ID:%x Size %d %zd\n",
11318                         phba->pcidev->device, magic_number, ftype, fid,
11319                         fsize, fw->size);
11320 }
11321
11322
11323 /**
11324  * lpfc_write_firmware - attempt to write a firmware image to the port
11325  * @fw: pointer to firmware image returned from request_firmware.
11326  * @phba: pointer to lpfc hba data structure.
11327  *
11328  **/
11329 static void
11330 lpfc_write_firmware(const struct firmware *fw, void *context)
11331 {
11332         struct lpfc_hba *phba = (struct lpfc_hba *)context;
11333         char fwrev[FW_REV_STR_SIZE];
11334         struct lpfc_grp_hdr *image;
11335         struct list_head dma_buffer_list;
11336         int i, rc = 0;
11337         struct lpfc_dmabuf *dmabuf, *next;
11338         uint32_t offset = 0, temp_offset = 0;
11339         uint32_t magic_number, ftype, fid, fsize;
11340
11341         /* It can be null in no-wait mode, sanity check */
11342         if (!fw) {
11343                 rc = -ENXIO;
11344                 goto out;
11345         }
11346         image = (struct lpfc_grp_hdr *)fw->data;
11347
11348         magic_number = be32_to_cpu(image->magic_number);
11349         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
11350         fid = bf_get_be32(lpfc_grp_hdr_id, image);
11351         fsize = be32_to_cpu(image->size);
11352
11353         INIT_LIST_HEAD(&dma_buffer_list);
11354         lpfc_decode_firmware_rev(phba, fwrev, 1);
11355         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
11356                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11357                                 "3023 Updating Firmware, Current Version:%s "
11358                                 "New Version:%s\n",
11359                                 fwrev, image->revision);
11360                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
11361                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
11362                                          GFP_KERNEL);
11363                         if (!dmabuf) {
11364                                 rc = -ENOMEM;
11365                                 goto release_out;
11366                         }
11367                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
11368                                                           SLI4_PAGE_SIZE,
11369                                                           &dmabuf->phys,
11370                                                           GFP_KERNEL);
11371                         if (!dmabuf->virt) {
11372                                 kfree(dmabuf);
11373                                 rc = -ENOMEM;
11374                                 goto release_out;
11375                         }
11376                         list_add_tail(&dmabuf->list, &dma_buffer_list);
11377                 }
11378                 while (offset < fw->size) {
11379                         temp_offset = offset;
11380                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
11381                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
11382                                         memcpy(dmabuf->virt,
11383                                                fw->data + temp_offset,
11384                                                fw->size - temp_offset);
11385                                         temp_offset = fw->size;
11386                                         break;
11387                                 }
11388                                 memcpy(dmabuf->virt, fw->data + temp_offset,
11389                                        SLI4_PAGE_SIZE);
11390                                 temp_offset += SLI4_PAGE_SIZE;
11391                         }
11392                         rc = lpfc_wr_object(phba, &dma_buffer_list,
11393                                     (fw->size - offset), &offset);
11394                         if (rc) {
11395                                 lpfc_log_write_firmware_error(phba, offset,
11396                                         magic_number, ftype, fid, fsize, fw);
11397                                 goto release_out;
11398                         }
11399                 }
11400                 rc = offset;
11401         } else
11402                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11403                                 "3029 Skipped Firmware update, Current "
11404                                 "Version:%s New Version:%s\n",
11405                                 fwrev, image->revision);
11406
11407 release_out:
11408         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
11409                 list_del(&dmabuf->list);
11410                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
11411                                   dmabuf->virt, dmabuf->phys);
11412                 kfree(dmabuf);
11413         }
11414         release_firmware(fw);
11415 out:
11416         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11417                         "3024 Firmware update done: %d.\n", rc);
11418         return;
11419 }
11420
11421 /**
11422  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
11423  * @phba: pointer to lpfc hba data structure.
11424  *
11425  * This routine is called to perform Linux generic firmware upgrade on device
11426  * that supports such feature.
11427  **/
11428 int
11429 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
11430 {
11431         uint8_t file_name[ELX_MODEL_NAME_SIZE];
11432         int ret;
11433         const struct firmware *fw;
11434
11435         /* Only supported on SLI4 interface type 2 for now */
11436         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
11437             LPFC_SLI_INTF_IF_TYPE_2)
11438                 return -EPERM;
11439
11440         snprintf(file_name, ELX_MODEL_NAME_SIZE, "/*(DEBLOBBED)*/", phba->ModelName);
11441
11442         if (fw_upgrade == INT_FW_UPGRADE) {
11443                 ret = reject_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
11444                                         file_name, &phba->pcidev->dev,
11445                                         GFP_KERNEL, (void *)phba,
11446                                         lpfc_write_firmware);
11447         } else if (fw_upgrade == RUN_FW_UPGRADE) {
11448                 ret = reject_firmware(&fw, file_name, &phba->pcidev->dev);
11449                 if (!ret)
11450                         lpfc_write_firmware(fw, (void *)phba);
11451         } else {
11452                 ret = -EINVAL;
11453         }
11454
11455         return ret;
11456 }
11457
11458 /**
11459  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
11460  * @pdev: pointer to PCI device
11461  * @pid: pointer to PCI device identifier
11462  *
11463  * This routine is called from the kernel's PCI subsystem to device with
11464  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11465  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
11466  * information of the device and driver to see if the driver state that it
11467  * can support this kind of device. If the match is successful, the driver
11468  * core invokes this routine. If this routine determines it can claim the HBA,
11469  * it does all the initialization that it needs to do to handle the HBA
11470  * properly.
11471  *
11472  * Return code
11473  *      0 - driver can claim the device
11474  *      negative value - driver can not claim the device
11475  **/
11476 static int
11477 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
11478 {
11479         struct lpfc_hba   *phba;
11480         struct lpfc_vport *vport = NULL;
11481         struct Scsi_Host  *shost = NULL;
11482         int error;
11483         uint32_t cfg_mode, intr_mode;
11484
11485         /* Allocate memory for HBA structure */
11486         phba = lpfc_hba_alloc(pdev);
11487         if (!phba)
11488                 return -ENOMEM;
11489
11490         /* Perform generic PCI device enabling operation */
11491         error = lpfc_enable_pci_dev(phba);
11492         if (error)
11493                 goto out_free_phba;
11494
11495         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
11496         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
11497         if (error)
11498                 goto out_disable_pci_dev;
11499
11500         /* Set up SLI-4 specific device PCI memory space */
11501         error = lpfc_sli4_pci_mem_setup(phba);
11502         if (error) {
11503                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11504                                 "1410 Failed to set up pci memory space.\n");
11505                 goto out_disable_pci_dev;
11506         }
11507
11508         /* Set up SLI-4 Specific device driver resources */
11509         error = lpfc_sli4_driver_resource_setup(phba);
11510         if (error) {
11511                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11512                                 "1412 Failed to set up driver resource.\n");
11513                 goto out_unset_pci_mem_s4;
11514         }
11515
11516         INIT_LIST_HEAD(&phba->active_rrq_list);
11517         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
11518
11519         /* Set up common device driver resources */
11520         error = lpfc_setup_driver_resource_phase2(phba);
11521         if (error) {
11522                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11523                                 "1414 Failed to set up driver resource.\n");
11524                 goto out_unset_driver_resource_s4;
11525         }
11526
11527         /* Get the default values for Model Name and Description */
11528         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
11529
11530         /* Create SCSI host to the physical port */
11531         error = lpfc_create_shost(phba);
11532         if (error) {
11533                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11534                                 "1415 Failed to create scsi host.\n");
11535                 goto out_unset_driver_resource;
11536         }
11537
11538         /* Configure sysfs attributes */
11539         vport = phba->pport;
11540         error = lpfc_alloc_sysfs_attr(vport);
11541         if (error) {
11542                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11543                                 "1416 Failed to allocate sysfs attr\n");
11544                 goto out_destroy_shost;
11545         }
11546
11547         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
11548         /* Now, trying to enable interrupt and bring up the device */
11549         cfg_mode = phba->cfg_use_msi;
11550
11551         /* Put device to a known state before enabling interrupt */
11552         lpfc_stop_port(phba);
11553
11554         /* Configure and enable interrupt */
11555         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
11556         if (intr_mode == LPFC_INTR_ERROR) {
11557                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11558                                 "0426 Failed to enable interrupt.\n");
11559                 error = -ENODEV;
11560                 goto out_free_sysfs_attr;
11561         }
11562         /* Default to single EQ for non-MSI-X */
11563         if (phba->intr_type != MSIX) {
11564                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
11565                         phba->cfg_fcp_io_channel = 1;
11566                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11567                         phba->cfg_nvme_io_channel = 1;
11568                         if (phba->nvmet_support)
11569                                 phba->cfg_nvmet_mrq = 1;
11570                 }
11571                 phba->io_channel_irqs = 1;
11572         }
11573
11574         /* Set up SLI-4 HBA */
11575         if (lpfc_sli4_hba_setup(phba)) {
11576                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11577                                 "1421 Failed to set up hba\n");
11578                 error = -ENODEV;
11579                 goto out_disable_intr;
11580         }
11581
11582         /* Log the current active interrupt mode */
11583         phba->intr_mode = intr_mode;
11584         lpfc_log_intr_mode(phba, intr_mode);
11585
11586         /* Perform post initialization setup */
11587         lpfc_post_init_setup(phba);
11588
11589         /* NVME support in FW earlier in the driver load corrects the
11590          * FC4 type making a check for nvme_support unnecessary.
11591          */
11592         if ((phba->nvmet_support == 0) &&
11593             (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
11594                 /* Create NVME binding with nvme_fc_transport. This
11595                  * ensures the vport is initialized.  If the localport
11596                  * create fails, it should not unload the driver to
11597                  * support field issues.
11598                  */
11599                 error = lpfc_nvme_create_localport(vport);
11600                 if (error) {
11601                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11602                                         "6004 NVME registration failed, "
11603                                         "error x%x\n",
11604                                         error);
11605                 }
11606         }
11607
11608         /* check for firmware upgrade or downgrade */
11609         if (phba->cfg_request_firmware_upgrade)
11610                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
11611
11612         /* Check if there are static vports to be created. */
11613         lpfc_create_static_vport(phba);
11614         return 0;
11615
11616 out_disable_intr:
11617         lpfc_sli4_disable_intr(phba);
11618 out_free_sysfs_attr:
11619         lpfc_free_sysfs_attr(vport);
11620 out_destroy_shost:
11621         lpfc_destroy_shost(phba);
11622 out_unset_driver_resource:
11623         lpfc_unset_driver_resource_phase2(phba);
11624 out_unset_driver_resource_s4:
11625         lpfc_sli4_driver_resource_unset(phba);
11626 out_unset_pci_mem_s4:
11627         lpfc_sli4_pci_mem_unset(phba);
11628 out_disable_pci_dev:
11629         lpfc_disable_pci_dev(phba);
11630         if (shost)
11631                 scsi_host_put(shost);
11632 out_free_phba:
11633         lpfc_hba_free(phba);
11634         return error;
11635 }
11636
11637 /**
11638  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
11639  * @pdev: pointer to PCI device
11640  *
11641  * This routine is called from the kernel's PCI subsystem to device with
11642  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11643  * removed from PCI bus, it performs all the necessary cleanup for the HBA
11644  * device to be removed from the PCI subsystem properly.
11645  **/
11646 static void
11647 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
11648 {
11649         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11650         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
11651         struct lpfc_vport **vports;
11652         struct lpfc_hba *phba = vport->phba;
11653         int i;
11654
11655         /* Mark the device unloading flag */
11656         spin_lock_irq(&phba->hbalock);
11657         vport->load_flag |= FC_UNLOADING;
11658         spin_unlock_irq(&phba->hbalock);
11659
11660         /* Free the HBA sysfs attributes */
11661         lpfc_free_sysfs_attr(vport);
11662
11663         /* Release all the vports against this physical port */
11664         vports = lpfc_create_vport_work_array(phba);
11665         if (vports != NULL)
11666                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
11667                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
11668                                 continue;
11669                         fc_vport_terminate(vports[i]->fc_vport);
11670                 }
11671         lpfc_destroy_vport_work_array(phba, vports);
11672
11673         /* Remove FC host and then SCSI host with the physical port */
11674         fc_remove_host(shost);
11675         scsi_remove_host(shost);
11676
11677         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
11678          * localports are destroyed after to cleanup all transport memory.
11679          */
11680         lpfc_cleanup(vport);
11681         lpfc_nvmet_destroy_targetport(phba);
11682         lpfc_nvme_destroy_localport(vport);
11683
11684         /*
11685          * Bring down the SLI Layer. This step disables all interrupts,
11686          * clears the rings, discards all mailbox commands, and resets
11687          * the HBA FCoE function.
11688          */
11689         lpfc_debugfs_terminate(vport);
11690         lpfc_sli4_hba_unset(phba);
11691
11692         lpfc_stop_hba_timers(phba);
11693         spin_lock_irq(&phba->hbalock);
11694         list_del_init(&vport->listentry);
11695         spin_unlock_irq(&phba->hbalock);
11696
11697         /* Perform scsi free before driver resource_unset since scsi
11698          * buffers are released to their corresponding pools here.
11699          */
11700         lpfc_scsi_free(phba);
11701         lpfc_nvme_free(phba);
11702         lpfc_free_iocb_list(phba);
11703
11704         lpfc_unset_driver_resource_phase2(phba);
11705         lpfc_sli4_driver_resource_unset(phba);
11706
11707         /* Unmap adapter Control and Doorbell registers */
11708         lpfc_sli4_pci_mem_unset(phba);
11709
11710         /* Release PCI resources and disable device's PCI function */
11711         scsi_host_put(shost);
11712         lpfc_disable_pci_dev(phba);
11713
11714         /* Finally, free the driver's device data structure */
11715         lpfc_hba_free(phba);
11716
11717         return;
11718 }
11719
11720 /**
11721  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
11722  * @pdev: pointer to PCI device
11723  * @msg: power management message
11724  *
11725  * This routine is called from the kernel's PCI subsystem to support system
11726  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
11727  * this method, it quiesces the device by stopping the driver's worker
11728  * thread for the device, turning off device's interrupt and DMA, and bring
11729  * the device offline. Note that as the driver implements the minimum PM
11730  * requirements to a power-aware driver's PM support for suspend/resume -- all
11731  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
11732  * method call will be treated as SUSPEND and the driver will fully
11733  * reinitialize its device during resume() method call, the driver will set
11734  * device to PCI_D3hot state in PCI config space instead of setting it
11735  * according to the @msg provided by the PM.
11736  *
11737  * Return code
11738  *      0 - driver suspended the device
11739  *      Error otherwise
11740  **/
11741 static int
11742 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
11743 {
11744         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11745         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11746
11747         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11748                         "2843 PCI device Power Management suspend.\n");
11749
11750         /* Bring down the device */
11751         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11752         lpfc_offline(phba);
11753         kthread_stop(phba->worker_thread);
11754
11755         /* Disable interrupt from device */
11756         lpfc_sli4_disable_intr(phba);
11757         lpfc_sli4_queue_destroy(phba);
11758
11759         /* Save device state to PCI config space */
11760         pci_save_state(pdev);
11761         pci_set_power_state(pdev, PCI_D3hot);
11762
11763         return 0;
11764 }
11765
11766 /**
11767  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
11768  * @pdev: pointer to PCI device
11769  *
11770  * This routine is called from the kernel's PCI subsystem to support system
11771  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
11772  * this method, it restores the device's PCI config space state and fully
11773  * reinitializes the device and brings it online. Note that as the driver
11774  * implements the minimum PM requirements to a power-aware driver's PM for
11775  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
11776  * to the suspend() method call will be treated as SUSPEND and the driver
11777  * will fully reinitialize its device during resume() method call, the device
11778  * will be set to PCI_D0 directly in PCI config space before restoring the
11779  * state.
11780  *
11781  * Return code
11782  *      0 - driver suspended the device
11783  *      Error otherwise
11784  **/
11785 static int
11786 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
11787 {
11788         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11789         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11790         uint32_t intr_mode;
11791         int error;
11792
11793         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11794                         "0292 PCI device Power Management resume.\n");
11795
11796         /* Restore device state from PCI config space */
11797         pci_set_power_state(pdev, PCI_D0);
11798         pci_restore_state(pdev);
11799
11800         /*
11801          * As the new kernel behavior of pci_restore_state() API call clears
11802          * device saved_state flag, need to save the restored state again.
11803          */
11804         pci_save_state(pdev);
11805
11806         if (pdev->is_busmaster)
11807                 pci_set_master(pdev);
11808
11809          /* Startup the kernel thread for this host adapter. */
11810         phba->worker_thread = kthread_run(lpfc_do_work, phba,
11811                                         "lpfc_worker_%d", phba->brd_no);
11812         if (IS_ERR(phba->worker_thread)) {
11813                 error = PTR_ERR(phba->worker_thread);
11814                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11815                                 "0293 PM resume failed to start worker "
11816                                 "thread: error=x%x.\n", error);
11817                 return error;
11818         }
11819
11820         /* Configure and enable interrupt */
11821         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
11822         if (intr_mode == LPFC_INTR_ERROR) {
11823                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11824                                 "0294 PM resume Failed to enable interrupt\n");
11825                 return -EIO;
11826         } else
11827                 phba->intr_mode = intr_mode;
11828
11829         /* Restart HBA and bring it online */
11830         lpfc_sli_brdrestart(phba);
11831         lpfc_online(phba);
11832
11833         /* Log the current active interrupt mode */
11834         lpfc_log_intr_mode(phba, phba->intr_mode);
11835
11836         return 0;
11837 }
11838
11839 /**
11840  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
11841  * @phba: pointer to lpfc hba data structure.
11842  *
11843  * This routine is called to prepare the SLI4 device for PCI slot recover. It
11844  * aborts all the outstanding SCSI I/Os to the pci device.
11845  **/
11846 static void
11847 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
11848 {
11849         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11850                         "2828 PCI channel I/O abort preparing for recovery\n");
11851         /*
11852          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
11853          * and let the SCSI mid-layer to retry them to recover.
11854          */
11855         lpfc_sli_abort_fcp_rings(phba);
11856 }
11857
11858 /**
11859  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
11860  * @phba: pointer to lpfc hba data structure.
11861  *
11862  * This routine is called to prepare the SLI4 device for PCI slot reset. It
11863  * disables the device interrupt and pci device, and aborts the internal FCP
11864  * pending I/Os.
11865  **/
11866 static void
11867 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
11868 {
11869         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11870                         "2826 PCI channel disable preparing for reset\n");
11871
11872         /* Block any management I/Os to the device */
11873         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
11874
11875         /* Block all SCSI devices' I/Os on the host */
11876         lpfc_scsi_dev_block(phba);
11877
11878         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
11879         lpfc_sli_flush_fcp_rings(phba);
11880
11881         /* Flush the outstanding NVME IOs if fc4 type enabled. */
11882         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
11883                 lpfc_sli_flush_nvme_rings(phba);
11884
11885         /* stop all timers */
11886         lpfc_stop_hba_timers(phba);
11887
11888         /* Disable interrupt and pci device */
11889         lpfc_sli4_disable_intr(phba);
11890         lpfc_sli4_queue_destroy(phba);
11891         pci_disable_device(phba->pcidev);
11892 }
11893
11894 /**
11895  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
11896  * @phba: pointer to lpfc hba data structure.
11897  *
11898  * This routine is called to prepare the SLI4 device for PCI slot permanently
11899  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
11900  * pending I/Os.
11901  **/
11902 static void
11903 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
11904 {
11905         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11906                         "2827 PCI channel permanent disable for failure\n");
11907
11908         /* Block all SCSI devices' I/Os on the host */
11909         lpfc_scsi_dev_block(phba);
11910
11911         /* stop all timers */
11912         lpfc_stop_hba_timers(phba);
11913
11914         /* Clean up all driver's outstanding SCSI I/Os */
11915         lpfc_sli_flush_fcp_rings(phba);
11916
11917         /* Flush the outstanding NVME IOs if fc4 type enabled. */
11918         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
11919                 lpfc_sli_flush_nvme_rings(phba);
11920 }
11921
11922 /**
11923  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
11924  * @pdev: pointer to PCI device.
11925  * @state: the current PCI connection state.
11926  *
11927  * This routine is called from the PCI subsystem for error handling to device
11928  * with SLI-4 interface spec. This function is called by the PCI subsystem
11929  * after a PCI bus error affecting this device has been detected. When this
11930  * function is invoked, it will need to stop all the I/Os and interrupt(s)
11931  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
11932  * for the PCI subsystem to perform proper recovery as desired.
11933  *
11934  * Return codes
11935  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11936  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11937  **/
11938 static pci_ers_result_t
11939 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
11940 {
11941         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11942         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11943
11944         switch (state) {
11945         case pci_channel_io_normal:
11946                 /* Non-fatal error, prepare for recovery */
11947                 lpfc_sli4_prep_dev_for_recover(phba);
11948                 return PCI_ERS_RESULT_CAN_RECOVER;
11949         case pci_channel_io_frozen:
11950                 /* Fatal error, prepare for slot reset */
11951                 lpfc_sli4_prep_dev_for_reset(phba);
11952                 return PCI_ERS_RESULT_NEED_RESET;
11953         case pci_channel_io_perm_failure:
11954                 /* Permanent failure, prepare for device down */
11955                 lpfc_sli4_prep_dev_for_perm_failure(phba);
11956                 return PCI_ERS_RESULT_DISCONNECT;
11957         default:
11958                 /* Unknown state, prepare and request slot reset */
11959                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11960                                 "2825 Unknown PCI error state: x%x\n", state);
11961                 lpfc_sli4_prep_dev_for_reset(phba);
11962                 return PCI_ERS_RESULT_NEED_RESET;
11963         }
11964 }
11965
11966 /**
11967  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
11968  * @pdev: pointer to PCI device.
11969  *
11970  * This routine is called from the PCI subsystem for error handling to device
11971  * with SLI-4 interface spec. It is called after PCI bus has been reset to
11972  * restart the PCI card from scratch, as if from a cold-boot. During the
11973  * PCI subsystem error recovery, after the driver returns
11974  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
11975  * recovery and then call this routine before calling the .resume method to
11976  * recover the device. This function will initialize the HBA device, enable
11977  * the interrupt, but it will just put the HBA to offline state without
11978  * passing any I/O traffic.
11979  *
11980  * Return codes
11981  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11982  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11983  */
11984 static pci_ers_result_t
11985 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
11986 {
11987         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11988         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11989         struct lpfc_sli *psli = &phba->sli;
11990         uint32_t intr_mode;
11991
11992         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
11993         if (pci_enable_device_mem(pdev)) {
11994                 printk(KERN_ERR "lpfc: Cannot re-enable "
11995                         "PCI device after reset.\n");
11996                 return PCI_ERS_RESULT_DISCONNECT;
11997         }
11998
11999         pci_restore_state(pdev);
12000
12001         /*
12002          * As the new kernel behavior of pci_restore_state() API call clears
12003          * device saved_state flag, need to save the restored state again.
12004          */
12005         pci_save_state(pdev);
12006
12007         if (pdev->is_busmaster)
12008                 pci_set_master(pdev);
12009
12010         spin_lock_irq(&phba->hbalock);
12011         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
12012         spin_unlock_irq(&phba->hbalock);
12013
12014         /* Configure and enable interrupt */
12015         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
12016         if (intr_mode == LPFC_INTR_ERROR) {
12017                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12018                                 "2824 Cannot re-enable interrupt after "
12019                                 "slot reset.\n");
12020                 return PCI_ERS_RESULT_DISCONNECT;
12021         } else
12022                 phba->intr_mode = intr_mode;
12023
12024         /* Log the current active interrupt mode */
12025         lpfc_log_intr_mode(phba, phba->intr_mode);
12026
12027         return PCI_ERS_RESULT_RECOVERED;
12028 }
12029
12030 /**
12031  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
12032  * @pdev: pointer to PCI device
12033  *
12034  * This routine is called from the PCI subsystem for error handling to device
12035  * with SLI-4 interface spec. It is called when kernel error recovery tells
12036  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
12037  * error recovery. After this call, traffic can start to flow from this device
12038  * again.
12039  **/
12040 static void
12041 lpfc_io_resume_s4(struct pci_dev *pdev)
12042 {
12043         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12044         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12045
12046         /*
12047          * In case of slot reset, as function reset is performed through
12048          * mailbox command which needs DMA to be enabled, this operation
12049          * has to be moved to the io resume phase. Taking device offline
12050          * will perform the necessary cleanup.
12051          */
12052         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
12053                 /* Perform device reset */
12054                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12055                 lpfc_offline(phba);
12056                 lpfc_sli_brdrestart(phba);
12057                 /* Bring the device back online */
12058                 lpfc_online(phba);
12059         }
12060
12061         /* Clean up Advanced Error Reporting (AER) if needed */
12062         if (phba->hba_flag & HBA_AER_ENABLED)
12063                 pci_cleanup_aer_uncorrect_error_status(pdev);
12064 }
12065
12066 /**
12067  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
12068  * @pdev: pointer to PCI device
12069  * @pid: pointer to PCI device identifier
12070  *
12071  * This routine is to be registered to the kernel's PCI subsystem. When an
12072  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
12073  * at PCI device-specific information of the device and driver to see if the
12074  * driver state that it can support this kind of device. If the match is
12075  * successful, the driver core invokes this routine. This routine dispatches
12076  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
12077  * do all the initialization that it needs to do to handle the HBA device
12078  * properly.
12079  *
12080  * Return code
12081  *      0 - driver can claim the device
12082  *      negative value - driver can not claim the device
12083  **/
12084 static int
12085 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
12086 {
12087         int rc;
12088         struct lpfc_sli_intf intf;
12089
12090         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
12091                 return -ENODEV;
12092
12093         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
12094             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
12095                 rc = lpfc_pci_probe_one_s4(pdev, pid);
12096         else
12097                 rc = lpfc_pci_probe_one_s3(pdev, pid);
12098
12099         return rc;
12100 }
12101
12102 /**
12103  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
12104  * @pdev: pointer to PCI device
12105  *
12106  * This routine is to be registered to the kernel's PCI subsystem. When an
12107  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
12108  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
12109  * remove routine, which will perform all the necessary cleanup for the
12110  * device to be removed from the PCI subsystem properly.
12111  **/
12112 static void
12113 lpfc_pci_remove_one(struct pci_dev *pdev)
12114 {
12115         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12116         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12117
12118         switch (phba->pci_dev_grp) {
12119         case LPFC_PCI_DEV_LP:
12120                 lpfc_pci_remove_one_s3(pdev);
12121                 break;
12122         case LPFC_PCI_DEV_OC:
12123                 lpfc_pci_remove_one_s4(pdev);
12124                 break;
12125         default:
12126                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12127                                 "1424 Invalid PCI device group: 0x%x\n",
12128                                 phba->pci_dev_grp);
12129                 break;
12130         }
12131         return;
12132 }
12133
12134 /**
12135  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
12136  * @pdev: pointer to PCI device
12137  * @msg: power management message
12138  *
12139  * This routine is to be registered to the kernel's PCI subsystem to support
12140  * system Power Management (PM). When PM invokes this method, it dispatches
12141  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
12142  * suspend the device.
12143  *
12144  * Return code
12145  *      0 - driver suspended the device
12146  *      Error otherwise
12147  **/
12148 static int
12149 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
12150 {
12151         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12152         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12153         int rc = -ENODEV;
12154
12155         switch (phba->pci_dev_grp) {
12156         case LPFC_PCI_DEV_LP:
12157                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
12158                 break;
12159         case LPFC_PCI_DEV_OC:
12160                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
12161                 break;
12162         default:
12163                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12164                                 "1425 Invalid PCI device group: 0x%x\n",
12165                                 phba->pci_dev_grp);
12166                 break;
12167         }
12168         return rc;
12169 }
12170
12171 /**
12172  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
12173  * @pdev: pointer to PCI device
12174  *
12175  * This routine is to be registered to the kernel's PCI subsystem to support
12176  * system Power Management (PM). When PM invokes this method, it dispatches
12177  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
12178  * resume the device.
12179  *
12180  * Return code
12181  *      0 - driver suspended the device
12182  *      Error otherwise
12183  **/
12184 static int
12185 lpfc_pci_resume_one(struct pci_dev *pdev)
12186 {
12187         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12188         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12189         int rc = -ENODEV;
12190
12191         switch (phba->pci_dev_grp) {
12192         case LPFC_PCI_DEV_LP:
12193                 rc = lpfc_pci_resume_one_s3(pdev);
12194                 break;
12195         case LPFC_PCI_DEV_OC:
12196                 rc = lpfc_pci_resume_one_s4(pdev);
12197                 break;
12198         default:
12199                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12200                                 "1426 Invalid PCI device group: 0x%x\n",
12201                                 phba->pci_dev_grp);
12202                 break;
12203         }
12204         return rc;
12205 }
12206
12207 /**
12208  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
12209  * @pdev: pointer to PCI device.
12210  * @state: the current PCI connection state.
12211  *
12212  * This routine is registered to the PCI subsystem for error handling. This
12213  * function is called by the PCI subsystem after a PCI bus error affecting
12214  * this device has been detected. When this routine is invoked, it dispatches
12215  * the action to the proper SLI-3 or SLI-4 device error detected handling
12216  * routine, which will perform the proper error detected operation.
12217  *
12218  * Return codes
12219  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12220  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12221  **/
12222 static pci_ers_result_t
12223 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
12224 {
12225         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12226         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12227         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
12228
12229         switch (phba->pci_dev_grp) {
12230         case LPFC_PCI_DEV_LP:
12231                 rc = lpfc_io_error_detected_s3(pdev, state);
12232                 break;
12233         case LPFC_PCI_DEV_OC:
12234                 rc = lpfc_io_error_detected_s4(pdev, state);
12235                 break;
12236         default:
12237                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12238                                 "1427 Invalid PCI device group: 0x%x\n",
12239                                 phba->pci_dev_grp);
12240                 break;
12241         }
12242         return rc;
12243 }
12244
12245 /**
12246  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
12247  * @pdev: pointer to PCI device.
12248  *
12249  * This routine is registered to the PCI subsystem for error handling. This
12250  * function is called after PCI bus has been reset to restart the PCI card
12251  * from scratch, as if from a cold-boot. When this routine is invoked, it
12252  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
12253  * routine, which will perform the proper device reset.
12254  *
12255  * Return codes
12256  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12257  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12258  **/
12259 static pci_ers_result_t
12260 lpfc_io_slot_reset(struct pci_dev *pdev)
12261 {
12262         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12263         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12264         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
12265
12266         switch (phba->pci_dev_grp) {
12267         case LPFC_PCI_DEV_LP:
12268                 rc = lpfc_io_slot_reset_s3(pdev);
12269                 break;
12270         case LPFC_PCI_DEV_OC:
12271                 rc = lpfc_io_slot_reset_s4(pdev);
12272                 break;
12273         default:
12274                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12275                                 "1428 Invalid PCI device group: 0x%x\n",
12276                                 phba->pci_dev_grp);
12277                 break;
12278         }
12279         return rc;
12280 }
12281
12282 /**
12283  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
12284  * @pdev: pointer to PCI device
12285  *
12286  * This routine is registered to the PCI subsystem for error handling. It
12287  * is called when kernel error recovery tells the lpfc driver that it is
12288  * OK to resume normal PCI operation after PCI bus error recovery. When
12289  * this routine is invoked, it dispatches the action to the proper SLI-3
12290  * or SLI-4 device io_resume routine, which will resume the device operation.
12291  **/
12292 static void
12293 lpfc_io_resume(struct pci_dev *pdev)
12294 {
12295         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12296         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12297
12298         switch (phba->pci_dev_grp) {
12299         case LPFC_PCI_DEV_LP:
12300                 lpfc_io_resume_s3(pdev);
12301                 break;
12302         case LPFC_PCI_DEV_OC:
12303                 lpfc_io_resume_s4(pdev);
12304                 break;
12305         default:
12306                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12307                                 "1429 Invalid PCI device group: 0x%x\n",
12308                                 phba->pci_dev_grp);
12309                 break;
12310         }
12311         return;
12312 }
12313
12314 /**
12315  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
12316  * @phba: pointer to lpfc hba data structure.
12317  *
12318  * This routine checks to see if OAS is supported for this adapter. If
12319  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
12320  * the enable oas flag is cleared and the pool created for OAS device data
12321  * is destroyed.
12322  *
12323  **/
12324 void
12325 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
12326 {
12327
12328         if (!phba->cfg_EnableXLane)
12329                 return;
12330
12331         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
12332                 phba->cfg_fof = 1;
12333         } else {
12334                 phba->cfg_fof = 0;
12335                 if (phba->device_data_mem_pool)
12336                         mempool_destroy(phba->device_data_mem_pool);
12337                 phba->device_data_mem_pool = NULL;
12338         }
12339
12340         return;
12341 }
12342
12343 /**
12344  * lpfc_fof_queue_setup - Set up all the fof queues
12345  * @phba: pointer to lpfc hba data structure.
12346  *
12347  * This routine is invoked to set up all the fof queues for the FC HBA
12348  * operation.
12349  *
12350  * Return codes
12351  *      0 - successful
12352  *      -ENOMEM - No available memory
12353  **/
12354 int
12355 lpfc_fof_queue_setup(struct lpfc_hba *phba)
12356 {
12357         struct lpfc_sli_ring *pring;
12358         int rc;
12359
12360         rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
12361         if (rc)
12362                 return -ENOMEM;
12363
12364         if (phba->cfg_fof) {
12365
12366                 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
12367                                     phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
12368                 if (rc)
12369                         goto out_oas_cq;
12370
12371                 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
12372                                     phba->sli4_hba.oas_cq, LPFC_FCP);
12373                 if (rc)
12374                         goto out_oas_wq;
12375
12376                 /* Bind this CQ/WQ to the NVME ring */
12377                 pring = phba->sli4_hba.oas_wq->pring;
12378                 pring->sli.sli4.wqp =
12379                         (void *)phba->sli4_hba.oas_wq;
12380                 phba->sli4_hba.oas_cq->pring = pring;
12381         }
12382
12383         return 0;
12384
12385 out_oas_wq:
12386         lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
12387 out_oas_cq:
12388         lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
12389         return rc;
12390
12391 }
12392
12393 /**
12394  * lpfc_fof_queue_create - Create all the fof queues
12395  * @phba: pointer to lpfc hba data structure.
12396  *
12397  * This routine is invoked to allocate all the fof queues for the FC HBA
12398  * operation. For each SLI4 queue type, the parameters such as queue entry
12399  * count (queue depth) shall be taken from the module parameter. For now,
12400  * we just use some constant number as place holder.
12401  *
12402  * Return codes
12403  *      0 - successful
12404  *      -ENOMEM - No availble memory
12405  *      -EIO - The mailbox failed to complete successfully.
12406  **/
12407 int
12408 lpfc_fof_queue_create(struct lpfc_hba *phba)
12409 {
12410         struct lpfc_queue *qdesc;
12411         uint32_t wqesize;
12412
12413         /* Create FOF EQ */
12414         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
12415                                       phba->sli4_hba.eq_esize,
12416                                       phba->sli4_hba.eq_ecount);
12417         if (!qdesc)
12418                 goto out_error;
12419
12420         qdesc->qe_valid = 1;
12421         phba->sli4_hba.fof_eq = qdesc;
12422
12423         if (phba->cfg_fof) {
12424
12425                 /* Create OAS CQ */
12426                 if (phba->enab_exp_wqcq_pages)
12427                         qdesc = lpfc_sli4_queue_alloc(phba,
12428                                                       LPFC_EXPANDED_PAGE_SIZE,
12429                                                       phba->sli4_hba.cq_esize,
12430                                                       LPFC_CQE_EXP_COUNT);
12431                 else
12432                         qdesc = lpfc_sli4_queue_alloc(phba,
12433                                                       LPFC_DEFAULT_PAGE_SIZE,
12434                                                       phba->sli4_hba.cq_esize,
12435                                                       phba->sli4_hba.cq_ecount);
12436                 if (!qdesc)
12437                         goto out_error;
12438
12439                 qdesc->qe_valid = 1;
12440                 phba->sli4_hba.oas_cq = qdesc;
12441
12442                 /* Create OAS WQ */
12443                 if (phba->enab_exp_wqcq_pages) {
12444                         wqesize = (phba->fcp_embed_io) ?
12445                                 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
12446                         qdesc = lpfc_sli4_queue_alloc(phba,
12447                                                       LPFC_EXPANDED_PAGE_SIZE,
12448                                                       wqesize,
12449                                                       LPFC_WQE_EXP_COUNT);
12450                 } else
12451                         qdesc = lpfc_sli4_queue_alloc(phba,
12452                                                       LPFC_DEFAULT_PAGE_SIZE,
12453                                                       phba->sli4_hba.wq_esize,
12454                                                       phba->sli4_hba.wq_ecount);
12455
12456                 if (!qdesc)
12457                         goto out_error;
12458
12459                 phba->sli4_hba.oas_wq = qdesc;
12460                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
12461
12462         }
12463         return 0;
12464
12465 out_error:
12466         lpfc_fof_queue_destroy(phba);
12467         return -ENOMEM;
12468 }
12469
12470 /**
12471  * lpfc_fof_queue_destroy - Destroy all the fof queues
12472  * @phba: pointer to lpfc hba data structure.
12473  *
12474  * This routine is invoked to release all the SLI4 queues with the FC HBA
12475  * operation.
12476  *
12477  * Return codes
12478  *      0 - successful
12479  **/
12480 int
12481 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
12482 {
12483         /* Release FOF Event queue */
12484         if (phba->sli4_hba.fof_eq != NULL) {
12485                 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
12486                 phba->sli4_hba.fof_eq = NULL;
12487         }
12488
12489         /* Release OAS Completion queue */
12490         if (phba->sli4_hba.oas_cq != NULL) {
12491                 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
12492                 phba->sli4_hba.oas_cq = NULL;
12493         }
12494
12495         /* Release OAS Work queue */
12496         if (phba->sli4_hba.oas_wq != NULL) {
12497                 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
12498                 phba->sli4_hba.oas_wq = NULL;
12499         }
12500         return 0;
12501 }
12502
12503 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
12504
12505 static const struct pci_error_handlers lpfc_err_handler = {
12506         .error_detected = lpfc_io_error_detected,
12507         .slot_reset = lpfc_io_slot_reset,
12508         .resume = lpfc_io_resume,
12509 };
12510
12511 static struct pci_driver lpfc_driver = {
12512         .name           = LPFC_DRIVER_NAME,
12513         .id_table       = lpfc_id_table,
12514         .probe          = lpfc_pci_probe_one,
12515         .remove         = lpfc_pci_remove_one,
12516         .shutdown       = lpfc_pci_remove_one,
12517         .suspend        = lpfc_pci_suspend_one,
12518         .resume         = lpfc_pci_resume_one,
12519         .err_handler    = &lpfc_err_handler,
12520 };
12521
12522 static const struct file_operations lpfc_mgmt_fop = {
12523         .owner = THIS_MODULE,
12524 };
12525
12526 static struct miscdevice lpfc_mgmt_dev = {
12527         .minor = MISC_DYNAMIC_MINOR,
12528         .name = "lpfcmgmt",
12529         .fops = &lpfc_mgmt_fop,
12530 };
12531
12532 /**
12533  * lpfc_init - lpfc module initialization routine
12534  *
12535  * This routine is to be invoked when the lpfc module is loaded into the
12536  * kernel. The special kernel macro module_init() is used to indicate the
12537  * role of this routine to the kernel as lpfc module entry point.
12538  *
12539  * Return codes
12540  *   0 - successful
12541  *   -ENOMEM - FC attach transport failed
12542  *   all others - failed
12543  */
12544 static int __init
12545 lpfc_init(void)
12546 {
12547         int error = 0;
12548
12549         printk(LPFC_MODULE_DESC "\n");
12550         printk(LPFC_COPYRIGHT "\n");
12551
12552         error = misc_register(&lpfc_mgmt_dev);
12553         if (error)
12554                 printk(KERN_ERR "Could not register lpfcmgmt device, "
12555                         "misc_register returned with status %d", error);
12556
12557         lpfc_transport_functions.vport_create = lpfc_vport_create;
12558         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
12559         lpfc_transport_template =
12560                                 fc_attach_transport(&lpfc_transport_functions);
12561         if (lpfc_transport_template == NULL)
12562                 return -ENOMEM;
12563         lpfc_vport_transport_template =
12564                 fc_attach_transport(&lpfc_vport_transport_functions);
12565         if (lpfc_vport_transport_template == NULL) {
12566                 fc_release_transport(lpfc_transport_template);
12567                 return -ENOMEM;
12568         }
12569         lpfc_nvme_cmd_template();
12570         lpfc_nvmet_cmd_template();
12571
12572         /* Initialize in case vector mapping is needed */
12573         lpfc_used_cpu = NULL;
12574         lpfc_present_cpu = num_present_cpus();
12575
12576         error = pci_register_driver(&lpfc_driver);
12577         if (error) {
12578                 fc_release_transport(lpfc_transport_template);
12579                 fc_release_transport(lpfc_vport_transport_template);
12580         }
12581
12582         return error;
12583 }
12584
12585 /**
12586  * lpfc_exit - lpfc module removal routine
12587  *
12588  * This routine is invoked when the lpfc module is removed from the kernel.
12589  * The special kernel macro module_exit() is used to indicate the role of
12590  * this routine to the kernel as lpfc module exit point.
12591  */
12592 static void __exit
12593 lpfc_exit(void)
12594 {
12595         misc_deregister(&lpfc_mgmt_dev);
12596         pci_unregister_driver(&lpfc_driver);
12597         fc_release_transport(lpfc_transport_template);
12598         fc_release_transport(lpfc_vport_transport_template);
12599         if (_dump_buf_data) {
12600                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
12601                                 "_dump_buf_data at 0x%p\n",
12602                                 (1L << _dump_buf_data_order), _dump_buf_data);
12603                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
12604         }
12605
12606         if (_dump_buf_dif) {
12607                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
12608                                 "_dump_buf_dif at 0x%p\n",
12609                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
12610                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
12611         }
12612         kfree(lpfc_used_cpu);
12613         idr_destroy(&lpfc_hba_index);
12614 }
12615
12616 module_init(lpfc_init);
12617 module_exit(lpfc_exit);
12618 MODULE_LICENSE("GPL");
12619 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
12620 MODULE_AUTHOR("Broadcom");
12621 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);