1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/delay.h>
24 #include <linux/dma-mapping.h>
25 #include <linux/idr.h>
26 #include <linux/interrupt.h>
27 #include <linux/module.h>
28 #include <linux/kthread.h>
29 #include <linux/pci.h>
30 #include <linux/spinlock.h>
31 #include <linux/ctype.h>
32 #include <linux/aer.h>
33 #include <linux/slab.h>
34 #include <linux/firmware.h>
35 #include <linux/miscdevice.h>
36 #include <linux/percpu.h>
38 #include <scsi/scsi.h>
39 #include <scsi/scsi_device.h>
40 #include <scsi/scsi_host.h>
41 #include <scsi/scsi_transport_fc.h>
46 #include "lpfc_sli4.h"
48 #include "lpfc_disc.h"
49 #include "lpfc_scsi.h"
51 #include "lpfc_logmsg.h"
52 #include "lpfc_crtn.h"
53 #include "lpfc_vport.h"
54 #include "lpfc_version.h"
58 unsigned long _dump_buf_data_order;
60 unsigned long _dump_buf_dif_order;
61 spinlock_t _dump_buf_lock;
63 /* Used when mapping IRQ vectors in a driver centric manner */
64 uint16_t *lpfc_used_cpu;
65 uint32_t lpfc_present_cpu;
67 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
68 static int lpfc_post_rcv_buf(struct lpfc_hba *);
69 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
70 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
71 static int lpfc_setup_endian_order(struct lpfc_hba *);
72 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
73 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
74 static void lpfc_init_sgl_list(struct lpfc_hba *);
75 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
76 static void lpfc_free_active_sgl(struct lpfc_hba *);
77 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
78 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
79 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
80 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
81 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
82 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
83 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
84 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
86 static struct scsi_transport_template *lpfc_transport_template = NULL;
87 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
88 static DEFINE_IDR(lpfc_hba_index);
91 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
92 * @phba: pointer to lpfc hba data structure.
94 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
95 * mailbox command. It retrieves the revision information from the HBA and
96 * collects the Vital Product Data (VPD) about the HBA for preparing the
97 * configuration of the HBA.
101 * -ERESTART - requests the SLI layer to reset the HBA and try again.
102 * Any other value - indicates an error.
105 lpfc_config_port_prep(struct lpfc_hba *phba)
107 lpfc_vpd_t *vp = &phba->vpd;
111 char *lpfc_vpd_data = NULL;
113 static char licensed[56] =
114 "key unlock for use with gnu public licensed code only\0";
115 static int init_key = 1;
117 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
119 phba->link_state = LPFC_HBA_ERROR;
124 phba->link_state = LPFC_INIT_MBX_CMDS;
126 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
128 uint32_t *ptext = (uint32_t *) licensed;
130 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
131 *ptext = cpu_to_be32(*ptext);
135 lpfc_read_nv(phba, pmb);
136 memset((char*)mb->un.varRDnvp.rsvd3, 0,
137 sizeof (mb->un.varRDnvp.rsvd3));
138 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
141 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
143 if (rc != MBX_SUCCESS) {
144 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
145 "0324 Config Port initialization "
146 "error, mbxCmd x%x READ_NVPARM, "
148 mb->mbxCommand, mb->mbxStatus);
149 mempool_free(pmb, phba->mbox_mem_pool);
152 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
154 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
158 phba->sli3_options = 0x0;
160 /* Setup and issue mailbox READ REV command */
161 lpfc_read_rev(phba, pmb);
162 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
163 if (rc != MBX_SUCCESS) {
164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
165 "0439 Adapter failed to init, mbxCmd x%x "
166 "READ_REV, mbxStatus x%x\n",
167 mb->mbxCommand, mb->mbxStatus);
168 mempool_free( pmb, phba->mbox_mem_pool);
174 * The value of rr must be 1 since the driver set the cv field to 1.
175 * This setting requires the FW to set all revision fields.
177 if (mb->un.varRdRev.rr == 0) {
179 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
180 "0440 Adapter failed to init, READ_REV has "
181 "missing revision information.\n");
182 mempool_free(pmb, phba->mbox_mem_pool);
186 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
187 mempool_free(pmb, phba->mbox_mem_pool);
191 /* Save information as VPD data */
193 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
194 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
195 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
196 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
197 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
198 vp->rev.biuRev = mb->un.varRdRev.biuRev;
199 vp->rev.smRev = mb->un.varRdRev.smRev;
200 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
201 vp->rev.endecRev = mb->un.varRdRev.endecRev;
202 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
203 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
204 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
205 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
206 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
207 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
209 /* If the sli feature level is less then 9, we must
210 * tear down all RPIs and VPIs on link down if NPIV
213 if (vp->rev.feaLevelHigh < 9)
214 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
216 if (lpfc_is_LC_HBA(phba->pcidev->device))
217 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
218 sizeof (phba->RandomData));
220 /* Get adapter VPD information */
221 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
225 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
226 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
228 if (rc != MBX_SUCCESS) {
229 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
230 "0441 VPD not present on adapter, "
231 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
232 mb->mbxCommand, mb->mbxStatus);
233 mb->un.varDmp.word_cnt = 0;
235 /* dump mem may return a zero when finished or we got a
236 * mailbox error, either way we are done.
238 if (mb->un.varDmp.word_cnt == 0)
240 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
241 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
242 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
243 lpfc_vpd_data + offset,
244 mb->un.varDmp.word_cnt);
245 offset += mb->un.varDmp.word_cnt;
246 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
247 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
249 kfree(lpfc_vpd_data);
251 mempool_free(pmb, phba->mbox_mem_pool);
256 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
257 * @phba: pointer to lpfc hba data structure.
258 * @pmboxq: pointer to the driver internal queue element for mailbox command.
260 * This is the completion handler for driver's configuring asynchronous event
261 * mailbox command to the device. If the mailbox command returns successfully,
262 * it will set internal async event support flag to 1; otherwise, it will
263 * set internal async event support flag to 0.
266 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
268 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
269 phba->temp_sensor_support = 1;
271 phba->temp_sensor_support = 0;
272 mempool_free(pmboxq, phba->mbox_mem_pool);
277 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
278 * @phba: pointer to lpfc hba data structure.
279 * @pmboxq: pointer to the driver internal queue element for mailbox command.
281 * This is the completion handler for dump mailbox command for getting
282 * wake up parameters. When this command complete, the response contain
283 * Option rom version of the HBA. This function translate the version number
284 * into a human readable string and store it in OptionROMVersion.
287 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
290 uint32_t prog_id_word;
292 /* character array used for decoding dist type. */
293 char dist_char[] = "nabx";
295 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
296 mempool_free(pmboxq, phba->mbox_mem_pool);
300 prg = (struct prog_id *) &prog_id_word;
302 /* word 7 contain option rom version */
303 prog_id_word = pmboxq->u.mb.un.varWords[7];
305 /* Decode the Option rom version word to a readable string */
307 dist = dist_char[prg->dist];
309 if ((prg->dist == 3) && (prg->num == 0))
310 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
311 prg->ver, prg->rev, prg->lev);
313 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
314 prg->ver, prg->rev, prg->lev,
316 mempool_free(pmboxq, phba->mbox_mem_pool);
321 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
322 * cfg_soft_wwnn, cfg_soft_wwpn
323 * @vport: pointer to lpfc vport data structure.
330 lpfc_update_vport_wwn(struct lpfc_vport *vport)
332 /* If the soft name exists then update it using the service params */
333 if (vport->phba->cfg_soft_wwnn)
334 u64_to_wwn(vport->phba->cfg_soft_wwnn,
335 vport->fc_sparam.nodeName.u.wwn);
336 if (vport->phba->cfg_soft_wwpn)
337 u64_to_wwn(vport->phba->cfg_soft_wwpn,
338 vport->fc_sparam.portName.u.wwn);
341 * If the name is empty or there exists a soft name
342 * then copy the service params name, otherwise use the fc name
344 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
345 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
346 sizeof(struct lpfc_name));
348 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
349 sizeof(struct lpfc_name));
351 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
352 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
353 sizeof(struct lpfc_name));
355 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
356 sizeof(struct lpfc_name));
360 * lpfc_config_port_post - Perform lpfc initialization after config port
361 * @phba: pointer to lpfc hba data structure.
363 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
364 * command call. It performs all internal resource and state setups on the
365 * port: post IOCB buffers, enable appropriate host interrupt attentions,
366 * ELS ring timers, etc.
370 * Any other value - error.
373 lpfc_config_port_post(struct lpfc_hba *phba)
375 struct lpfc_vport *vport = phba->pport;
376 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
379 struct lpfc_dmabuf *mp;
380 struct lpfc_sli *psli = &phba->sli;
381 uint32_t status, timeout;
385 spin_lock_irq(&phba->hbalock);
387 * If the Config port completed correctly the HBA is not
388 * over heated any more.
390 if (phba->over_temp_state == HBA_OVER_TEMP)
391 phba->over_temp_state = HBA_NORMAL_TEMP;
392 spin_unlock_irq(&phba->hbalock);
394 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
396 phba->link_state = LPFC_HBA_ERROR;
401 /* Get login parameters for NID. */
402 rc = lpfc_read_sparam(phba, pmb, 0);
404 mempool_free(pmb, phba->mbox_mem_pool);
409 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
411 "0448 Adapter failed init, mbxCmd x%x "
412 "READ_SPARM mbxStatus x%x\n",
413 mb->mbxCommand, mb->mbxStatus);
414 phba->link_state = LPFC_HBA_ERROR;
415 mp = (struct lpfc_dmabuf *) pmb->context1;
416 mempool_free(pmb, phba->mbox_mem_pool);
417 lpfc_mbuf_free(phba, mp->virt, mp->phys);
422 mp = (struct lpfc_dmabuf *) pmb->context1;
424 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
425 lpfc_mbuf_free(phba, mp->virt, mp->phys);
427 pmb->context1 = NULL;
428 lpfc_update_vport_wwn(vport);
430 /* Update the fc_host data structures with new wwn. */
431 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
432 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
433 fc_host_max_npiv_vports(shost) = phba->max_vpi;
435 /* If no serial number in VPD data, use low 6 bytes of WWNN */
436 /* This should be consolidated into parse_vpd ? - mr */
437 if (phba->SerialNumber[0] == 0) {
440 outptr = &vport->fc_nodename.u.s.IEEE[0];
441 for (i = 0; i < 12; i++) {
443 j = ((status & 0xf0) >> 4);
445 phba->SerialNumber[i] =
446 (char)((uint8_t) 0x30 + (uint8_t) j);
448 phba->SerialNumber[i] =
449 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
453 phba->SerialNumber[i] =
454 (char)((uint8_t) 0x30 + (uint8_t) j);
456 phba->SerialNumber[i] =
457 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
461 lpfc_read_config(phba, pmb);
463 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
464 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
465 "0453 Adapter failed to init, mbxCmd x%x "
466 "READ_CONFIG, mbxStatus x%x\n",
467 mb->mbxCommand, mb->mbxStatus);
468 phba->link_state = LPFC_HBA_ERROR;
469 mempool_free( pmb, phba->mbox_mem_pool);
473 /* Check if the port is disabled */
474 lpfc_sli_read_link_ste(phba);
476 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
477 i = (mb->un.varRdConfig.max_xri + 1);
478 if (phba->cfg_hba_queue_depth > i) {
479 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
480 "3359 HBA queue depth changed from %d to %d\n",
481 phba->cfg_hba_queue_depth, i);
482 phba->cfg_hba_queue_depth = i;
485 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
486 i = (mb->un.varRdConfig.max_xri >> 3);
487 if (phba->pport->cfg_lun_queue_depth > i) {
488 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
489 "3360 LUN queue depth changed from %d to %d\n",
490 phba->pport->cfg_lun_queue_depth, i);
491 phba->pport->cfg_lun_queue_depth = i;
494 phba->lmt = mb->un.varRdConfig.lmt;
496 /* Get the default values for Model Name and Description */
497 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
499 phba->link_state = LPFC_LINK_DOWN;
501 /* Only process IOCBs on ELS ring till hba_state is READY */
502 if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
503 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
504 if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
505 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
506 if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
507 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
509 /* Post receive buffers for desired rings */
510 if (phba->sli_rev != 3)
511 lpfc_post_rcv_buf(phba);
514 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
516 if (phba->intr_type == MSIX) {
517 rc = lpfc_config_msi(phba, pmb);
519 mempool_free(pmb, phba->mbox_mem_pool);
522 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
523 if (rc != MBX_SUCCESS) {
524 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
525 "0352 Config MSI mailbox command "
526 "failed, mbxCmd x%x, mbxStatus x%x\n",
527 pmb->u.mb.mbxCommand,
528 pmb->u.mb.mbxStatus);
529 mempool_free(pmb, phba->mbox_mem_pool);
534 spin_lock_irq(&phba->hbalock);
535 /* Initialize ERATT handling flag */
536 phba->hba_flag &= ~HBA_ERATT_HANDLED;
538 /* Enable appropriate host interrupts */
539 if (lpfc_readl(phba->HCregaddr, &status)) {
540 spin_unlock_irq(&phba->hbalock);
543 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
544 if (psli->num_rings > 0)
545 status |= HC_R0INT_ENA;
546 if (psli->num_rings > 1)
547 status |= HC_R1INT_ENA;
548 if (psli->num_rings > 2)
549 status |= HC_R2INT_ENA;
550 if (psli->num_rings > 3)
551 status |= HC_R3INT_ENA;
553 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
554 (phba->cfg_poll & DISABLE_FCP_RING_INT))
555 status &= ~(HC_R0INT_ENA);
557 writel(status, phba->HCregaddr);
558 readl(phba->HCregaddr); /* flush */
559 spin_unlock_irq(&phba->hbalock);
561 /* Set up ring-0 (ELS) timer */
562 timeout = phba->fc_ratov * 2;
563 mod_timer(&vport->els_tmofunc,
564 jiffies + msecs_to_jiffies(1000 * timeout));
565 /* Set up heart beat (HB) timer */
566 mod_timer(&phba->hb_tmofunc,
567 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
568 phba->hb_outstanding = 0;
569 phba->last_completion_time = jiffies;
570 /* Set up error attention (ERATT) polling timer */
571 mod_timer(&phba->eratt_poll,
572 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
574 if (phba->hba_flag & LINK_DISABLED) {
575 lpfc_printf_log(phba,
577 "2598 Adapter Link is disabled.\n");
578 lpfc_down_link(phba, pmb);
579 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
580 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
581 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
582 lpfc_printf_log(phba,
584 "2599 Adapter failed to issue DOWN_LINK"
585 " mbox command rc 0x%x\n", rc);
587 mempool_free(pmb, phba->mbox_mem_pool);
590 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
591 mempool_free(pmb, phba->mbox_mem_pool);
592 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
596 /* MBOX buffer will be freed in mbox compl */
597 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
599 phba->link_state = LPFC_HBA_ERROR;
603 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
604 pmb->mbox_cmpl = lpfc_config_async_cmpl;
605 pmb->vport = phba->pport;
606 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
608 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
609 lpfc_printf_log(phba,
612 "0456 Adapter failed to issue "
613 "ASYNCEVT_ENABLE mbox status x%x\n",
615 mempool_free(pmb, phba->mbox_mem_pool);
618 /* Get Option rom version */
619 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
621 phba->link_state = LPFC_HBA_ERROR;
625 lpfc_dump_wakeup_param(phba, pmb);
626 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
627 pmb->vport = phba->pport;
628 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
630 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
631 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
632 "to get Option ROM version status x%x\n", rc);
633 mempool_free(pmb, phba->mbox_mem_pool);
640 * lpfc_hba_init_link - Initialize the FC link
641 * @phba: pointer to lpfc hba data structure.
642 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
644 * This routine will issue the INIT_LINK mailbox command call.
645 * It is available to other drivers through the lpfc_hba data
646 * structure for use as a delayed link up mechanism with the
647 * module parameter lpfc_suppress_link_up.
651 * Any other value - error
654 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
656 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
660 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
661 * @phba: pointer to lpfc hba data structure.
662 * @fc_topology: desired fc topology.
663 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
665 * This routine will issue the INIT_LINK mailbox command call.
666 * It is available to other drivers through the lpfc_hba data
667 * structure for use as a delayed link up mechanism with the
668 * module parameter lpfc_suppress_link_up.
672 * Any other value - error
675 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
678 struct lpfc_vport *vport = phba->pport;
683 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
685 phba->link_state = LPFC_HBA_ERROR;
691 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
692 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
693 !(phba->lmt & LMT_1Gb)) ||
694 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
695 !(phba->lmt & LMT_2Gb)) ||
696 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
697 !(phba->lmt & LMT_4Gb)) ||
698 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
699 !(phba->lmt & LMT_8Gb)) ||
700 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
701 !(phba->lmt & LMT_10Gb)) ||
702 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
703 !(phba->lmt & LMT_16Gb)) ||
704 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
705 !(phba->lmt & LMT_32Gb))) {
706 /* Reset link speed to auto */
707 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
708 "1302 Invalid speed for this board:%d "
709 "Reset link speed to auto.\n",
710 phba->cfg_link_speed);
711 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
713 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
714 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
715 if (phba->sli_rev < LPFC_SLI_REV4)
716 lpfc_set_loopback_flag(phba);
717 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
718 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
719 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
720 "0498 Adapter failed to init, mbxCmd x%x "
721 "INIT_LINK, mbxStatus x%x\n",
722 mb->mbxCommand, mb->mbxStatus);
723 if (phba->sli_rev <= LPFC_SLI_REV3) {
724 /* Clear all interrupt enable conditions */
725 writel(0, phba->HCregaddr);
726 readl(phba->HCregaddr); /* flush */
727 /* Clear all pending interrupts */
728 writel(0xffffffff, phba->HAregaddr);
729 readl(phba->HAregaddr); /* flush */
731 phba->link_state = LPFC_HBA_ERROR;
732 if (rc != MBX_BUSY || flag == MBX_POLL)
733 mempool_free(pmb, phba->mbox_mem_pool);
736 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
737 if (flag == MBX_POLL)
738 mempool_free(pmb, phba->mbox_mem_pool);
744 * lpfc_hba_down_link - this routine downs the FC link
745 * @phba: pointer to lpfc hba data structure.
746 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
748 * This routine will issue the DOWN_LINK mailbox command call.
749 * It is available to other drivers through the lpfc_hba data
750 * structure for use to stop the link.
754 * Any other value - error
757 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
762 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
764 phba->link_state = LPFC_HBA_ERROR;
768 lpfc_printf_log(phba,
770 "0491 Adapter Link is disabled.\n");
771 lpfc_down_link(phba, pmb);
772 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
773 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
774 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
775 lpfc_printf_log(phba,
777 "2522 Adapter failed to issue DOWN_LINK"
778 " mbox command rc 0x%x\n", rc);
780 mempool_free(pmb, phba->mbox_mem_pool);
783 if (flag == MBX_POLL)
784 mempool_free(pmb, phba->mbox_mem_pool);
790 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
791 * @phba: pointer to lpfc HBA data structure.
793 * This routine will do LPFC uninitialization before the HBA is reset when
794 * bringing down the SLI Layer.
798 * Any other value - error.
801 lpfc_hba_down_prep(struct lpfc_hba *phba)
803 struct lpfc_vport **vports;
806 if (phba->sli_rev <= LPFC_SLI_REV3) {
807 /* Disable interrupts */
808 writel(0, phba->HCregaddr);
809 readl(phba->HCregaddr); /* flush */
812 if (phba->pport->load_flag & FC_UNLOADING)
813 lpfc_cleanup_discovery_resources(phba->pport);
815 vports = lpfc_create_vport_work_array(phba);
817 for (i = 0; i <= phba->max_vports &&
818 vports[i] != NULL; i++)
819 lpfc_cleanup_discovery_resources(vports[i]);
820 lpfc_destroy_vport_work_array(phba, vports);
826 * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
827 * rspiocb which got deferred
829 * @phba: pointer to lpfc HBA data structure.
831 * This routine will cleanup completed slow path events after HBA is reset
832 * when bringing down the SLI Layer.
839 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
841 struct lpfc_iocbq *rspiocbq;
842 struct hbq_dmabuf *dmabuf;
843 struct lpfc_cq_event *cq_event;
845 spin_lock_irq(&phba->hbalock);
846 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
847 spin_unlock_irq(&phba->hbalock);
849 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
850 /* Get the response iocb from the head of work queue */
851 spin_lock_irq(&phba->hbalock);
852 list_remove_head(&phba->sli4_hba.sp_queue_event,
853 cq_event, struct lpfc_cq_event, list);
854 spin_unlock_irq(&phba->hbalock);
856 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
857 case CQE_CODE_COMPL_WQE:
858 rspiocbq = container_of(cq_event, struct lpfc_iocbq,
860 lpfc_sli_release_iocbq(phba, rspiocbq);
862 case CQE_CODE_RECEIVE:
863 case CQE_CODE_RECEIVE_V1:
864 dmabuf = container_of(cq_event, struct hbq_dmabuf,
866 lpfc_in_buf_free(phba, &dmabuf->dbuf);
872 * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
873 * @phba: pointer to lpfc HBA data structure.
875 * This routine will cleanup posted ELS buffers after the HBA is reset
876 * when bringing down the SLI Layer.
883 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
885 struct lpfc_sli *psli = &phba->sli;
886 struct lpfc_sli_ring *pring;
887 struct lpfc_dmabuf *mp, *next_mp;
891 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
892 lpfc_sli_hbqbuf_free_all(phba);
894 /* Cleanup preposted buffers on the ELS ring */
895 pring = &psli->ring[LPFC_ELS_RING];
896 spin_lock_irq(&phba->hbalock);
897 list_splice_init(&pring->postbufq, &buflist);
898 spin_unlock_irq(&phba->hbalock);
901 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
904 lpfc_mbuf_free(phba, mp->virt, mp->phys);
908 spin_lock_irq(&phba->hbalock);
909 pring->postbufq_cnt -= count;
910 spin_unlock_irq(&phba->hbalock);
915 * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
916 * @phba: pointer to lpfc HBA data structure.
918 * This routine will cleanup the txcmplq after the HBA is reset when bringing
919 * down the SLI Layer.
925 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
927 struct lpfc_sli *psli = &phba->sli;
928 struct lpfc_sli_ring *pring;
929 LIST_HEAD(completions);
932 for (i = 0; i < psli->num_rings; i++) {
933 pring = &psli->ring[i];
934 if (phba->sli_rev >= LPFC_SLI_REV4)
935 spin_lock_irq(&pring->ring_lock);
937 spin_lock_irq(&phba->hbalock);
938 /* At this point in time the HBA is either reset or DOA. Either
939 * way, nothing should be on txcmplq as it will NEVER complete.
941 list_splice_init(&pring->txcmplq, &completions);
942 pring->txcmplq_cnt = 0;
944 if (phba->sli_rev >= LPFC_SLI_REV4)
945 spin_unlock_irq(&pring->ring_lock);
947 spin_unlock_irq(&phba->hbalock);
949 /* Cancel all the IOCBs from the completions list */
950 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
952 lpfc_sli_abort_iocb_ring(phba, pring);
957 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
959 * @phba: pointer to lpfc HBA data structure.
961 * This routine will do uninitialization after the HBA is reset when bring
962 * down the SLI Layer.
966 * Any other value - error.
969 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
971 lpfc_hba_free_post_buf(phba);
972 lpfc_hba_clean_txcmplq(phba);
977 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
978 * @phba: pointer to lpfc HBA data structure.
980 * This routine will do uninitialization after the HBA is reset when bring
981 * down the SLI Layer.
985 * Any other value - error.
988 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
990 struct lpfc_scsi_buf *psb, *psb_next;
992 unsigned long iflag = 0;
993 struct lpfc_sglq *sglq_entry = NULL;
994 struct lpfc_sli *psli = &phba->sli;
995 struct lpfc_sli_ring *pring;
997 lpfc_hba_free_post_buf(phba);
998 lpfc_hba_clean_txcmplq(phba);
999 pring = &psli->ring[LPFC_ELS_RING];
1001 /* At this point in time the HBA is either reset or DOA. Either
1002 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1003 * on the lpfc_sgl_list so that it can either be freed if the
1004 * driver is unloading or reposted if the driver is restarting
1007 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
1009 /* abts_sgl_list_lock required because worker thread uses this
1012 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
1013 list_for_each_entry(sglq_entry,
1014 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1015 sglq_entry->state = SGL_FREED;
1017 spin_lock(&pring->ring_lock);
1018 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1019 &phba->sli4_hba.lpfc_sgl_list);
1020 spin_unlock(&pring->ring_lock);
1021 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
1022 /* abts_scsi_buf_list_lock required because worker thread uses this
1025 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1026 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1028 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1029 spin_unlock_irq(&phba->hbalock);
1031 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1033 psb->status = IOSTAT_SUCCESS;
1035 spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1036 list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1037 spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1039 lpfc_sli4_free_sp_events(phba);
1044 * lpfc_hba_down_post - Wrapper func for hba down post routine
1045 * @phba: pointer to lpfc HBA data structure.
1047 * This routine wraps the actual SLI3 or SLI4 routine for performing
1048 * uninitialization after the HBA is reset when bring down the SLI Layer.
1052 * Any other value - error.
1055 lpfc_hba_down_post(struct lpfc_hba *phba)
1057 return (*phba->lpfc_hba_down_post)(phba);
1061 * lpfc_hb_timeout - The HBA-timer timeout handler
1062 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1064 * This is the HBA-timer timeout handler registered to the lpfc driver. When
1065 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1066 * work-port-events bitmap and the worker thread is notified. This timeout
1067 * event will be used by the worker thread to invoke the actual timeout
1068 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1069 * be performed in the timeout handler and the HBA timeout event bit shall
1070 * be cleared by the worker thread after it has taken the event bitmap out.
1073 lpfc_hb_timeout(unsigned long ptr)
1075 struct lpfc_hba *phba;
1076 uint32_t tmo_posted;
1077 unsigned long iflag;
1079 phba = (struct lpfc_hba *)ptr;
1081 /* Check for heart beat timeout conditions */
1082 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1083 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1085 phba->pport->work_port_events |= WORKER_HB_TMO;
1086 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1088 /* Tell the worker thread there is work to do */
1090 lpfc_worker_wake_up(phba);
1095 * lpfc_rrq_timeout - The RRQ-timer timeout handler
1096 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1098 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1099 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1100 * work-port-events bitmap and the worker thread is notified. This timeout
1101 * event will be used by the worker thread to invoke the actual timeout
1102 * handler routine, lpfc_rrq_handler. Any periodical operations will
1103 * be performed in the timeout handler and the RRQ timeout event bit shall
1104 * be cleared by the worker thread after it has taken the event bitmap out.
1107 lpfc_rrq_timeout(unsigned long ptr)
1109 struct lpfc_hba *phba;
1110 unsigned long iflag;
1112 phba = (struct lpfc_hba *)ptr;
1113 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1114 if (!(phba->pport->load_flag & FC_UNLOADING))
1115 phba->hba_flag |= HBA_RRQ_ACTIVE;
1117 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1118 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1120 if (!(phba->pport->load_flag & FC_UNLOADING))
1121 lpfc_worker_wake_up(phba);
1125 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1126 * @phba: pointer to lpfc hba data structure.
1127 * @pmboxq: pointer to the driver internal queue element for mailbox command.
1129 * This is the callback function to the lpfc heart-beat mailbox command.
1130 * If configured, the lpfc driver issues the heart-beat mailbox command to
1131 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1132 * heart-beat mailbox command is issued, the driver shall set up heart-beat
1133 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1134 * heart-beat outstanding state. Once the mailbox command comes back and
1135 * no error conditions detected, the heart-beat mailbox command timer is
1136 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1137 * state is cleared for the next heart-beat. If the timer expired with the
1138 * heart-beat outstanding state set, the driver will put the HBA offline.
1141 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1143 unsigned long drvr_flag;
1145 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1146 phba->hb_outstanding = 0;
1147 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1149 /* Check and reset heart-beat timer is necessary */
1150 mempool_free(pmboxq, phba->mbox_mem_pool);
1151 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1152 !(phba->link_state == LPFC_HBA_ERROR) &&
1153 !(phba->pport->load_flag & FC_UNLOADING))
1154 mod_timer(&phba->hb_tmofunc,
1156 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1161 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1162 * @phba: pointer to lpfc hba data structure.
1164 * This is the actual HBA-timer timeout handler to be invoked by the worker
1165 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1166 * handler performs any periodic operations needed for the device. If such
1167 * periodic event has already been attended to either in the interrupt handler
1168 * or by processing slow-ring or fast-ring events within the HBA-timer
1169 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1170 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1171 * is configured and there is no heart-beat mailbox command outstanding, a
1172 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1173 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1177 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1179 struct lpfc_vport **vports;
1180 LPFC_MBOXQ_t *pmboxq;
1181 struct lpfc_dmabuf *buf_ptr;
1183 struct lpfc_sli *psli = &phba->sli;
1184 LIST_HEAD(completions);
1186 vports = lpfc_create_vport_work_array(phba);
1188 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1189 lpfc_rcv_seq_check_edtov(vports[i]);
1190 lpfc_fdmi_num_disc_check(vports[i]);
1192 lpfc_destroy_vport_work_array(phba, vports);
1194 if ((phba->link_state == LPFC_HBA_ERROR) ||
1195 (phba->pport->load_flag & FC_UNLOADING) ||
1196 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1199 spin_lock_irq(&phba->pport->work_port_lock);
1201 if (time_after(phba->last_completion_time +
1202 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1204 spin_unlock_irq(&phba->pport->work_port_lock);
1205 if (!phba->hb_outstanding)
1206 mod_timer(&phba->hb_tmofunc,
1208 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1210 mod_timer(&phba->hb_tmofunc,
1212 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1215 spin_unlock_irq(&phba->pport->work_port_lock);
1217 if (phba->elsbuf_cnt &&
1218 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1219 spin_lock_irq(&phba->hbalock);
1220 list_splice_init(&phba->elsbuf, &completions);
1221 phba->elsbuf_cnt = 0;
1222 phba->elsbuf_prev_cnt = 0;
1223 spin_unlock_irq(&phba->hbalock);
1225 while (!list_empty(&completions)) {
1226 list_remove_head(&completions, buf_ptr,
1227 struct lpfc_dmabuf, list);
1228 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1232 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1234 /* If there is no heart beat outstanding, issue a heartbeat command */
1235 if (phba->cfg_enable_hba_heartbeat) {
1236 if (!phba->hb_outstanding) {
1237 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1238 (list_empty(&psli->mboxq))) {
1239 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1242 mod_timer(&phba->hb_tmofunc,
1244 msecs_to_jiffies(1000 *
1245 LPFC_HB_MBOX_INTERVAL));
1249 lpfc_heart_beat(phba, pmboxq);
1250 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1251 pmboxq->vport = phba->pport;
1252 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1255 if (retval != MBX_BUSY &&
1256 retval != MBX_SUCCESS) {
1257 mempool_free(pmboxq,
1258 phba->mbox_mem_pool);
1259 mod_timer(&phba->hb_tmofunc,
1261 msecs_to_jiffies(1000 *
1262 LPFC_HB_MBOX_INTERVAL));
1265 phba->skipped_hb = 0;
1266 phba->hb_outstanding = 1;
1267 } else if (time_before_eq(phba->last_completion_time,
1268 phba->skipped_hb)) {
1269 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1270 "2857 Last completion time not "
1271 " updated in %d ms\n",
1272 jiffies_to_msecs(jiffies
1273 - phba->last_completion_time));
1275 phba->skipped_hb = jiffies;
1277 mod_timer(&phba->hb_tmofunc,
1279 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1283 * If heart beat timeout called with hb_outstanding set
1284 * we need to give the hb mailbox cmd a chance to
1287 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1288 "0459 Adapter heartbeat still out"
1289 "standing:last compl time was %d ms.\n",
1290 jiffies_to_msecs(jiffies
1291 - phba->last_completion_time));
1292 mod_timer(&phba->hb_tmofunc,
1294 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1297 mod_timer(&phba->hb_tmofunc,
1299 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1304 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1305 * @phba: pointer to lpfc hba data structure.
1307 * This routine is called to bring the HBA offline when HBA hardware error
1308 * other than Port Error 6 has been detected.
1311 lpfc_offline_eratt(struct lpfc_hba *phba)
1313 struct lpfc_sli *psli = &phba->sli;
1315 spin_lock_irq(&phba->hbalock);
1316 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1317 spin_unlock_irq(&phba->hbalock);
1318 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1321 lpfc_reset_barrier(phba);
1322 spin_lock_irq(&phba->hbalock);
1323 lpfc_sli_brdreset(phba);
1324 spin_unlock_irq(&phba->hbalock);
1325 lpfc_hba_down_post(phba);
1326 lpfc_sli_brdready(phba, HS_MBRDY);
1327 lpfc_unblock_mgmt_io(phba);
1328 phba->link_state = LPFC_HBA_ERROR;
1333 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1334 * @phba: pointer to lpfc hba data structure.
1336 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1337 * other than Port Error 6 has been detected.
1340 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1342 spin_lock_irq(&phba->hbalock);
1343 phba->link_state = LPFC_HBA_ERROR;
1344 spin_unlock_irq(&phba->hbalock);
1346 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1348 lpfc_hba_down_post(phba);
1349 lpfc_unblock_mgmt_io(phba);
1353 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1354 * @phba: pointer to lpfc hba data structure.
1356 * This routine is invoked to handle the deferred HBA hardware error
1357 * conditions. This type of error is indicated by HBA by setting ER1
1358 * and another ER bit in the host status register. The driver will
1359 * wait until the ER1 bit clears before handling the error condition.
1362 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1364 uint32_t old_host_status = phba->work_hs;
1365 struct lpfc_sli *psli = &phba->sli;
1367 /* If the pci channel is offline, ignore possible errors,
1368 * since we cannot communicate with the pci card anyway.
1370 if (pci_channel_offline(phba->pcidev)) {
1371 spin_lock_irq(&phba->hbalock);
1372 phba->hba_flag &= ~DEFER_ERATT;
1373 spin_unlock_irq(&phba->hbalock);
1377 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1378 "0479 Deferred Adapter Hardware Error "
1379 "Data: x%x x%x x%x\n",
1381 phba->work_status[0], phba->work_status[1]);
1383 spin_lock_irq(&phba->hbalock);
1384 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1385 spin_unlock_irq(&phba->hbalock);
1389 * Firmware stops when it triggred erratt. That could cause the I/Os
1390 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1391 * SCSI layer retry it after re-establishing link.
1393 lpfc_sli_abort_fcp_rings(phba);
1396 * There was a firmware error. Take the hba offline and then
1397 * attempt to restart it.
1399 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1402 /* Wait for the ER1 bit to clear.*/
1403 while (phba->work_hs & HS_FFER1) {
1405 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1406 phba->work_hs = UNPLUG_ERR ;
1409 /* If driver is unloading let the worker thread continue */
1410 if (phba->pport->load_flag & FC_UNLOADING) {
1417 * This is to ptrotect against a race condition in which
1418 * first write to the host attention register clear the
1419 * host status register.
1421 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1422 phba->work_hs = old_host_status & ~HS_FFER1;
1424 spin_lock_irq(&phba->hbalock);
1425 phba->hba_flag &= ~DEFER_ERATT;
1426 spin_unlock_irq(&phba->hbalock);
1427 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1428 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1432 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1434 struct lpfc_board_event_header board_event;
1435 struct Scsi_Host *shost;
1437 board_event.event_type = FC_REG_BOARD_EVENT;
1438 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1439 shost = lpfc_shost_from_vport(phba->pport);
1440 fc_host_post_vendor_event(shost, fc_get_event_number(),
1441 sizeof(board_event),
1442 (char *) &board_event,
1447 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1448 * @phba: pointer to lpfc hba data structure.
1450 * This routine is invoked to handle the following HBA hardware error
1452 * 1 - HBA error attention interrupt
1453 * 2 - DMA ring index out of range
1454 * 3 - Mailbox command came back as unknown
1457 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1459 struct lpfc_vport *vport = phba->pport;
1460 struct lpfc_sli *psli = &phba->sli;
1461 uint32_t event_data;
1462 unsigned long temperature;
1463 struct temp_event temp_event_data;
1464 struct Scsi_Host *shost;
1466 /* If the pci channel is offline, ignore possible errors,
1467 * since we cannot communicate with the pci card anyway.
1469 if (pci_channel_offline(phba->pcidev)) {
1470 spin_lock_irq(&phba->hbalock);
1471 phba->hba_flag &= ~DEFER_ERATT;
1472 spin_unlock_irq(&phba->hbalock);
1476 /* If resets are disabled then leave the HBA alone and return */
1477 if (!phba->cfg_enable_hba_reset)
1480 /* Send an internal error event to mgmt application */
1481 lpfc_board_errevt_to_mgmt(phba);
1483 if (phba->hba_flag & DEFER_ERATT)
1484 lpfc_handle_deferred_eratt(phba);
1486 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1487 if (phba->work_hs & HS_FFER6)
1488 /* Re-establishing Link */
1489 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1490 "1301 Re-establishing Link "
1491 "Data: x%x x%x x%x\n",
1492 phba->work_hs, phba->work_status[0],
1493 phba->work_status[1]);
1494 if (phba->work_hs & HS_FFER8)
1495 /* Device Zeroization */
1496 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1497 "2861 Host Authentication device "
1498 "zeroization Data:x%x x%x x%x\n",
1499 phba->work_hs, phba->work_status[0],
1500 phba->work_status[1]);
1502 spin_lock_irq(&phba->hbalock);
1503 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1504 spin_unlock_irq(&phba->hbalock);
1507 * Firmware stops when it triggled erratt with HS_FFER6.
1508 * That could cause the I/Os dropped by the firmware.
1509 * Error iocb (I/O) on txcmplq and let the SCSI layer
1510 * retry it after re-establishing link.
1512 lpfc_sli_abort_fcp_rings(phba);
1515 * There was a firmware error. Take the hba offline and then
1516 * attempt to restart it.
1518 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1520 lpfc_sli_brdrestart(phba);
1521 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1522 lpfc_unblock_mgmt_io(phba);
1525 lpfc_unblock_mgmt_io(phba);
1526 } else if (phba->work_hs & HS_CRIT_TEMP) {
1527 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1528 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1529 temp_event_data.event_code = LPFC_CRIT_TEMP;
1530 temp_event_data.data = (uint32_t)temperature;
1532 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1533 "0406 Adapter maximum temperature exceeded "
1534 "(%ld), taking this port offline "
1535 "Data: x%x x%x x%x\n",
1536 temperature, phba->work_hs,
1537 phba->work_status[0], phba->work_status[1]);
1539 shost = lpfc_shost_from_vport(phba->pport);
1540 fc_host_post_vendor_event(shost, fc_get_event_number(),
1541 sizeof(temp_event_data),
1542 (char *) &temp_event_data,
1543 SCSI_NL_VID_TYPE_PCI
1544 | PCI_VENDOR_ID_EMULEX);
1546 spin_lock_irq(&phba->hbalock);
1547 phba->over_temp_state = HBA_OVER_TEMP;
1548 spin_unlock_irq(&phba->hbalock);
1549 lpfc_offline_eratt(phba);
1552 /* The if clause above forces this code path when the status
1553 * failure is a value other than FFER6. Do not call the offline
1554 * twice. This is the adapter hardware error path.
1556 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1557 "0457 Adapter Hardware Error "
1558 "Data: x%x x%x x%x\n",
1560 phba->work_status[0], phba->work_status[1]);
1562 event_data = FC_REG_DUMP_EVENT;
1563 shost = lpfc_shost_from_vport(vport);
1564 fc_host_post_vendor_event(shost, fc_get_event_number(),
1565 sizeof(event_data), (char *) &event_data,
1566 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1568 lpfc_offline_eratt(phba);
1574 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1575 * @phba: pointer to lpfc hba data structure.
1576 * @mbx_action: flag for mailbox shutdown action.
1578 * This routine is invoked to perform an SLI4 port PCI function reset in
1579 * response to port status register polling attention. It waits for port
1580 * status register (ERR, RDY, RN) bits before proceeding with function reset.
1581 * During this process, interrupt vectors are freed and later requested
1582 * for handling possible port resource change.
1585 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1591 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
1592 LPFC_SLI_INTF_IF_TYPE_2) {
1594 * On error status condition, driver need to wait for port
1595 * ready before performing reset.
1597 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1602 /* need reset: attempt for port recovery */
1604 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1605 "2887 Reset Needed: Attempting Port "
1607 lpfc_offline_prep(phba, mbx_action);
1609 /* release interrupt for possible resource change */
1610 lpfc_sli4_disable_intr(phba);
1611 lpfc_sli_brdrestart(phba);
1612 /* request and enable interrupt */
1613 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1614 if (intr_mode == LPFC_INTR_ERROR) {
1615 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1616 "3175 Failed to enable interrupt\n");
1619 phba->intr_mode = intr_mode;
1620 rc = lpfc_online(phba);
1622 lpfc_unblock_mgmt_io(phba);
1628 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1629 * @phba: pointer to lpfc hba data structure.
1631 * This routine is invoked to handle the SLI4 HBA hardware error attention
1635 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1637 struct lpfc_vport *vport = phba->pport;
1638 uint32_t event_data;
1639 struct Scsi_Host *shost;
1641 struct lpfc_register portstat_reg = {0};
1642 uint32_t reg_err1, reg_err2;
1643 uint32_t uerrlo_reg, uemasklo_reg;
1644 uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1645 bool en_rn_msg = true;
1646 struct temp_event temp_event_data;
1647 struct lpfc_register portsmphr_reg;
1650 /* If the pci channel is offline, ignore possible errors, since
1651 * we cannot communicate with the pci card anyway.
1653 if (pci_channel_offline(phba->pcidev))
1656 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1657 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1659 case LPFC_SLI_INTF_IF_TYPE_0:
1660 pci_rd_rc1 = lpfc_readl(
1661 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1663 pci_rd_rc2 = lpfc_readl(
1664 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1666 /* consider PCI bus read error as pci_channel_offline */
1667 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1669 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1670 lpfc_sli4_offline_eratt(phba);
1673 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1674 "7623 Checking UE recoverable");
1676 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1677 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1678 &portsmphr_reg.word0))
1681 smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1683 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1684 LPFC_PORT_SEM_UE_RECOVERABLE)
1686 /*Sleep for 1Sec, before checking SEMAPHORE */
1690 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1691 "4827 smphr_port_status x%x : Waited %dSec",
1692 smphr_port_status, i);
1694 /* Recoverable UE, reset the HBA device */
1695 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1696 LPFC_PORT_SEM_UE_RECOVERABLE) {
1697 for (i = 0; i < 20; i++) {
1699 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1700 &portsmphr_reg.word0) &&
1701 (LPFC_POST_STAGE_PORT_READY ==
1702 bf_get(lpfc_port_smphr_port_status,
1704 rc = lpfc_sli4_port_sta_fn_reset(phba,
1705 LPFC_MBX_NO_WAIT, en_rn_msg);
1708 lpfc_printf_log(phba,
1710 "4215 Failed to recover UE");
1715 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1716 "7624 Firmware not ready: Failing UE recovery,"
1717 " waited %dSec", i);
1718 lpfc_sli4_offline_eratt(phba);
1721 case LPFC_SLI_INTF_IF_TYPE_2:
1722 pci_rd_rc1 = lpfc_readl(
1723 phba->sli4_hba.u.if_type2.STATUSregaddr,
1724 &portstat_reg.word0);
1725 /* consider PCI bus read error as pci_channel_offline */
1726 if (pci_rd_rc1 == -EIO) {
1727 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1728 "3151 PCI bus read access failure: x%x\n",
1729 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1732 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1733 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1734 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1735 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1736 "2889 Port Overtemperature event, "
1737 "taking port offline Data: x%x x%x\n",
1738 reg_err1, reg_err2);
1740 phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1741 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1742 temp_event_data.event_code = LPFC_CRIT_TEMP;
1743 temp_event_data.data = 0xFFFFFFFF;
1745 shost = lpfc_shost_from_vport(phba->pport);
1746 fc_host_post_vendor_event(shost, fc_get_event_number(),
1747 sizeof(temp_event_data),
1748 (char *)&temp_event_data,
1749 SCSI_NL_VID_TYPE_PCI
1750 | PCI_VENDOR_ID_EMULEX);
1752 spin_lock_irq(&phba->hbalock);
1753 phba->over_temp_state = HBA_OVER_TEMP;
1754 spin_unlock_irq(&phba->hbalock);
1755 lpfc_sli4_offline_eratt(phba);
1758 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1759 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1760 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1761 "3143 Port Down: Firmware Update "
1764 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1765 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1766 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1767 "3144 Port Down: Debug Dump\n");
1768 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1769 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1770 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1771 "3145 Port Down: Provisioning\n");
1773 /* If resets are disabled then leave the HBA alone and return */
1774 if (!phba->cfg_enable_hba_reset)
1777 /* Check port status register for function reset */
1778 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1781 /* don't report event on forced debug dump */
1782 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1783 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1788 /* fall through for not able to recover */
1789 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1790 "3152 Unrecoverable error, bring the port "
1792 lpfc_sli4_offline_eratt(phba);
1794 case LPFC_SLI_INTF_IF_TYPE_1:
1798 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1799 "3123 Report dump event to upper layer\n");
1800 /* Send an internal error event to mgmt application */
1801 lpfc_board_errevt_to_mgmt(phba);
1803 event_data = FC_REG_DUMP_EVENT;
1804 shost = lpfc_shost_from_vport(vport);
1805 fc_host_post_vendor_event(shost, fc_get_event_number(),
1806 sizeof(event_data), (char *) &event_data,
1807 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1811 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1812 * @phba: pointer to lpfc HBA data structure.
1814 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1815 * routine from the API jump table function pointer from the lpfc_hba struct.
1819 * Any other value - error.
1822 lpfc_handle_eratt(struct lpfc_hba *phba)
1824 (*phba->lpfc_handle_eratt)(phba);
1828 * lpfc_handle_latt - The HBA link event handler
1829 * @phba: pointer to lpfc hba data structure.
1831 * This routine is invoked from the worker thread to handle a HBA host
1832 * attention link event.
1835 lpfc_handle_latt(struct lpfc_hba *phba)
1837 struct lpfc_vport *vport = phba->pport;
1838 struct lpfc_sli *psli = &phba->sli;
1840 volatile uint32_t control;
1841 struct lpfc_dmabuf *mp;
1844 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1847 goto lpfc_handle_latt_err_exit;
1850 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1853 goto lpfc_handle_latt_free_pmb;
1856 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1859 goto lpfc_handle_latt_free_mp;
1862 /* Cleanup any outstanding ELS commands */
1863 lpfc_els_flush_all_cmd(phba);
1865 psli->slistat.link_event++;
1866 lpfc_read_topology(phba, pmb, mp);
1867 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1869 /* Block ELS IOCBs until we have processed this mbox command */
1870 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1871 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1872 if (rc == MBX_NOT_FINISHED) {
1874 goto lpfc_handle_latt_free_mbuf;
1877 /* Clear Link Attention in HA REG */
1878 spin_lock_irq(&phba->hbalock);
1879 writel(HA_LATT, phba->HAregaddr);
1880 readl(phba->HAregaddr); /* flush */
1881 spin_unlock_irq(&phba->hbalock);
1885 lpfc_handle_latt_free_mbuf:
1886 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1887 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1888 lpfc_handle_latt_free_mp:
1890 lpfc_handle_latt_free_pmb:
1891 mempool_free(pmb, phba->mbox_mem_pool);
1892 lpfc_handle_latt_err_exit:
1893 /* Enable Link attention interrupts */
1894 spin_lock_irq(&phba->hbalock);
1895 psli->sli_flag |= LPFC_PROCESS_LA;
1896 control = readl(phba->HCregaddr);
1897 control |= HC_LAINT_ENA;
1898 writel(control, phba->HCregaddr);
1899 readl(phba->HCregaddr); /* flush */
1901 /* Clear Link Attention in HA REG */
1902 writel(HA_LATT, phba->HAregaddr);
1903 readl(phba->HAregaddr); /* flush */
1904 spin_unlock_irq(&phba->hbalock);
1905 lpfc_linkdown(phba);
1906 phba->link_state = LPFC_HBA_ERROR;
1908 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1909 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1915 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1916 * @phba: pointer to lpfc hba data structure.
1917 * @vpd: pointer to the vital product data.
1918 * @len: length of the vital product data in bytes.
1920 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1921 * an array of characters. In this routine, the ModelName, ProgramType, and
1922 * ModelDesc, etc. fields of the phba data structure will be populated.
1925 * 0 - pointer to the VPD passed in is NULL
1929 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1931 uint8_t lenlo, lenhi;
1941 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1942 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1943 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1945 while (!finished && (index < (len - 4))) {
1946 switch (vpd[index]) {
1954 i = ((((unsigned short)lenhi) << 8) + lenlo);
1963 Length = ((((unsigned short)lenhi) << 8) + lenlo);
1964 if (Length > len - index)
1965 Length = len - index;
1966 while (Length > 0) {
1967 /* Look for Serial Number */
1968 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1975 phba->SerialNumber[j++] = vpd[index++];
1979 phba->SerialNumber[j] = 0;
1982 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1983 phba->vpd_flag |= VPD_MODEL_DESC;
1990 phba->ModelDesc[j++] = vpd[index++];
1994 phba->ModelDesc[j] = 0;
1997 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1998 phba->vpd_flag |= VPD_MODEL_NAME;
2005 phba->ModelName[j++] = vpd[index++];
2009 phba->ModelName[j] = 0;
2012 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2013 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2020 phba->ProgramType[j++] = vpd[index++];
2024 phba->ProgramType[j] = 0;
2027 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2028 phba->vpd_flag |= VPD_PORT;
2035 if ((phba->sli_rev == LPFC_SLI_REV4) &&
2036 (phba->sli4_hba.pport_name_sta ==
2037 LPFC_SLI4_PPNAME_GET)) {
2041 phba->Port[j++] = vpd[index++];
2045 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2046 (phba->sli4_hba.pport_name_sta ==
2047 LPFC_SLI4_PPNAME_NON))
2074 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2075 * @phba: pointer to lpfc hba data structure.
2076 * @mdp: pointer to the data structure to hold the derived model name.
2077 * @descp: pointer to the data structure to hold the derived description.
2079 * This routine retrieves HBA's description based on its registered PCI device
2080 * ID. The @descp passed into this function points to an array of 256 chars. It
2081 * shall be returned with the model name, maximum speed, and the host bus type.
2082 * The @mdp passed into this function points to an array of 80 chars. When the
2083 * function returns, the @mdp will be filled with the model name.
2086 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2089 uint16_t dev_id = phba->pcidev->device;
2092 int oneConnect = 0; /* default is not a oneConnect */
2097 } m = {"<Unknown>", "", ""};
2099 if (mdp && mdp[0] != '\0'
2100 && descp && descp[0] != '\0')
2103 if (phba->lmt & LMT_32Gb)
2105 else if (phba->lmt & LMT_16Gb)
2107 else if (phba->lmt & LMT_10Gb)
2109 else if (phba->lmt & LMT_8Gb)
2111 else if (phba->lmt & LMT_4Gb)
2113 else if (phba->lmt & LMT_2Gb)
2115 else if (phba->lmt & LMT_1Gb)
2123 case PCI_DEVICE_ID_FIREFLY:
2124 m = (typeof(m)){"LP6000", "PCI",
2125 "Obsolete, Unsupported Fibre Channel Adapter"};
2127 case PCI_DEVICE_ID_SUPERFLY:
2128 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2129 m = (typeof(m)){"LP7000", "PCI", ""};
2131 m = (typeof(m)){"LP7000E", "PCI", ""};
2132 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2134 case PCI_DEVICE_ID_DRAGONFLY:
2135 m = (typeof(m)){"LP8000", "PCI",
2136 "Obsolete, Unsupported Fibre Channel Adapter"};
2138 case PCI_DEVICE_ID_CENTAUR:
2139 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2140 m = (typeof(m)){"LP9002", "PCI", ""};
2142 m = (typeof(m)){"LP9000", "PCI", ""};
2143 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2145 case PCI_DEVICE_ID_RFLY:
2146 m = (typeof(m)){"LP952", "PCI",
2147 "Obsolete, Unsupported Fibre Channel Adapter"};
2149 case PCI_DEVICE_ID_PEGASUS:
2150 m = (typeof(m)){"LP9802", "PCI-X",
2151 "Obsolete, Unsupported Fibre Channel Adapter"};
2153 case PCI_DEVICE_ID_THOR:
2154 m = (typeof(m)){"LP10000", "PCI-X",
2155 "Obsolete, Unsupported Fibre Channel Adapter"};
2157 case PCI_DEVICE_ID_VIPER:
2158 m = (typeof(m)){"LPX1000", "PCI-X",
2159 "Obsolete, Unsupported Fibre Channel Adapter"};
2161 case PCI_DEVICE_ID_PFLY:
2162 m = (typeof(m)){"LP982", "PCI-X",
2163 "Obsolete, Unsupported Fibre Channel Adapter"};
2165 case PCI_DEVICE_ID_TFLY:
2166 m = (typeof(m)){"LP1050", "PCI-X",
2167 "Obsolete, Unsupported Fibre Channel Adapter"};
2169 case PCI_DEVICE_ID_HELIOS:
2170 m = (typeof(m)){"LP11000", "PCI-X2",
2171 "Obsolete, Unsupported Fibre Channel Adapter"};
2173 case PCI_DEVICE_ID_HELIOS_SCSP:
2174 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2175 "Obsolete, Unsupported Fibre Channel Adapter"};
2177 case PCI_DEVICE_ID_HELIOS_DCSP:
2178 m = (typeof(m)){"LP11002-SP", "PCI-X2",
2179 "Obsolete, Unsupported Fibre Channel Adapter"};
2181 case PCI_DEVICE_ID_NEPTUNE:
2182 m = (typeof(m)){"LPe1000", "PCIe",
2183 "Obsolete, Unsupported Fibre Channel Adapter"};
2185 case PCI_DEVICE_ID_NEPTUNE_SCSP:
2186 m = (typeof(m)){"LPe1000-SP", "PCIe",
2187 "Obsolete, Unsupported Fibre Channel Adapter"};
2189 case PCI_DEVICE_ID_NEPTUNE_DCSP:
2190 m = (typeof(m)){"LPe1002-SP", "PCIe",
2191 "Obsolete, Unsupported Fibre Channel Adapter"};
2193 case PCI_DEVICE_ID_BMID:
2194 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2196 case PCI_DEVICE_ID_BSMB:
2197 m = (typeof(m)){"LP111", "PCI-X2",
2198 "Obsolete, Unsupported Fibre Channel Adapter"};
2200 case PCI_DEVICE_ID_ZEPHYR:
2201 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2203 case PCI_DEVICE_ID_ZEPHYR_SCSP:
2204 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2206 case PCI_DEVICE_ID_ZEPHYR_DCSP:
2207 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2210 case PCI_DEVICE_ID_ZMID:
2211 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2213 case PCI_DEVICE_ID_ZSMB:
2214 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2216 case PCI_DEVICE_ID_LP101:
2217 m = (typeof(m)){"LP101", "PCI-X",
2218 "Obsolete, Unsupported Fibre Channel Adapter"};
2220 case PCI_DEVICE_ID_LP10000S:
2221 m = (typeof(m)){"LP10000-S", "PCI",
2222 "Obsolete, Unsupported Fibre Channel Adapter"};
2224 case PCI_DEVICE_ID_LP11000S:
2225 m = (typeof(m)){"LP11000-S", "PCI-X2",
2226 "Obsolete, Unsupported Fibre Channel Adapter"};
2228 case PCI_DEVICE_ID_LPE11000S:
2229 m = (typeof(m)){"LPe11000-S", "PCIe",
2230 "Obsolete, Unsupported Fibre Channel Adapter"};
2232 case PCI_DEVICE_ID_SAT:
2233 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2235 case PCI_DEVICE_ID_SAT_MID:
2236 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2238 case PCI_DEVICE_ID_SAT_SMB:
2239 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2241 case PCI_DEVICE_ID_SAT_DCSP:
2242 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2244 case PCI_DEVICE_ID_SAT_SCSP:
2245 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2247 case PCI_DEVICE_ID_SAT_S:
2248 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2250 case PCI_DEVICE_ID_HORNET:
2251 m = (typeof(m)){"LP21000", "PCIe",
2252 "Obsolete, Unsupported FCoE Adapter"};
2255 case PCI_DEVICE_ID_PROTEUS_VF:
2256 m = (typeof(m)){"LPev12000", "PCIe IOV",
2257 "Obsolete, Unsupported Fibre Channel Adapter"};
2259 case PCI_DEVICE_ID_PROTEUS_PF:
2260 m = (typeof(m)){"LPev12000", "PCIe IOV",
2261 "Obsolete, Unsupported Fibre Channel Adapter"};
2263 case PCI_DEVICE_ID_PROTEUS_S:
2264 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2265 "Obsolete, Unsupported Fibre Channel Adapter"};
2267 case PCI_DEVICE_ID_TIGERSHARK:
2269 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2271 case PCI_DEVICE_ID_TOMCAT:
2273 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2275 case PCI_DEVICE_ID_FALCON:
2276 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2277 "EmulexSecure Fibre"};
2279 case PCI_DEVICE_ID_BALIUS:
2280 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2281 "Obsolete, Unsupported Fibre Channel Adapter"};
2283 case PCI_DEVICE_ID_LANCER_FC:
2284 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2286 case PCI_DEVICE_ID_LANCER_FC_VF:
2287 m = (typeof(m)){"LPe16000", "PCIe",
2288 "Obsolete, Unsupported Fibre Channel Adapter"};
2290 case PCI_DEVICE_ID_LANCER_FCOE:
2292 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2294 case PCI_DEVICE_ID_LANCER_FCOE_VF:
2296 m = (typeof(m)){"OCe15100", "PCIe",
2297 "Obsolete, Unsupported FCoE"};
2299 case PCI_DEVICE_ID_LANCER_G6_FC:
2300 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2302 case PCI_DEVICE_ID_SKYHAWK:
2303 case PCI_DEVICE_ID_SKYHAWK_VF:
2305 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2308 m = (typeof(m)){"Unknown", "", ""};
2312 if (mdp && mdp[0] == '\0')
2313 snprintf(mdp, 79,"%s", m.name);
2315 * oneConnect hba requires special processing, they are all initiators
2316 * and we put the port number on the end
2318 if (descp && descp[0] == '\0') {
2320 snprintf(descp, 255,
2321 "Emulex OneConnect %s, %s Initiator %s",
2324 else if (max_speed == 0)
2325 snprintf(descp, 255,
2327 m.name, m.bus, m.function);
2329 snprintf(descp, 255,
2330 "Emulex %s %d%s %s %s",
2331 m.name, max_speed, (GE) ? "GE" : "Gb",
2337 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2338 * @phba: pointer to lpfc hba data structure.
2339 * @pring: pointer to a IOCB ring.
2340 * @cnt: the number of IOCBs to be posted to the IOCB ring.
2342 * This routine posts a given number of IOCBs with the associated DMA buffer
2343 * descriptors specified by the cnt argument to the given IOCB ring.
2346 * The number of IOCBs NOT able to be posted to the IOCB ring.
2349 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2352 struct lpfc_iocbq *iocb;
2353 struct lpfc_dmabuf *mp1, *mp2;
2355 cnt += pring->missbufcnt;
2357 /* While there are buffers to post */
2359 /* Allocate buffer for command iocb */
2360 iocb = lpfc_sli_get_iocbq(phba);
2362 pring->missbufcnt = cnt;
2367 /* 2 buffers can be posted per command */
2368 /* Allocate buffer to post */
2369 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2371 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2372 if (!mp1 || !mp1->virt) {
2374 lpfc_sli_release_iocbq(phba, iocb);
2375 pring->missbufcnt = cnt;
2379 INIT_LIST_HEAD(&mp1->list);
2380 /* Allocate buffer to post */
2382 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2384 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2386 if (!mp2 || !mp2->virt) {
2388 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2390 lpfc_sli_release_iocbq(phba, iocb);
2391 pring->missbufcnt = cnt;
2395 INIT_LIST_HEAD(&mp2->list);
2400 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2401 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2402 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2403 icmd->ulpBdeCount = 1;
2406 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2407 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2408 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2410 icmd->ulpBdeCount = 2;
2413 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2416 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2418 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2422 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2426 lpfc_sli_release_iocbq(phba, iocb);
2427 pring->missbufcnt = cnt;
2430 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2432 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2434 pring->missbufcnt = 0;
2439 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2440 * @phba: pointer to lpfc hba data structure.
2442 * This routine posts initial receive IOCB buffers to the ELS ring. The
2443 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2447 * 0 - success (currently always success)
2450 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2452 struct lpfc_sli *psli = &phba->sli;
2454 /* Ring 0, ELS / CT buffers */
2455 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2456 /* Ring 2 - FCP no buffers needed */
2461 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2464 * lpfc_sha_init - Set up initial array of hash table entries
2465 * @HashResultPointer: pointer to an array as hash table.
2467 * This routine sets up the initial values to the array of hash table entries
2471 lpfc_sha_init(uint32_t * HashResultPointer)
2473 HashResultPointer[0] = 0x67452301;
2474 HashResultPointer[1] = 0xEFCDAB89;
2475 HashResultPointer[2] = 0x98BADCFE;
2476 HashResultPointer[3] = 0x10325476;
2477 HashResultPointer[4] = 0xC3D2E1F0;
2481 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2482 * @HashResultPointer: pointer to an initial/result hash table.
2483 * @HashWorkingPointer: pointer to an working hash table.
2485 * This routine iterates an initial hash table pointed by @HashResultPointer
2486 * with the values from the working hash table pointeed by @HashWorkingPointer.
2487 * The results are putting back to the initial hash table, returned through
2488 * the @HashResultPointer as the result hash table.
2491 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2495 uint32_t A, B, C, D, E;
2498 HashWorkingPointer[t] =
2500 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2502 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2503 } while (++t <= 79);
2505 A = HashResultPointer[0];
2506 B = HashResultPointer[1];
2507 C = HashResultPointer[2];
2508 D = HashResultPointer[3];
2509 E = HashResultPointer[4];
2513 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2514 } else if (t < 40) {
2515 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2516 } else if (t < 60) {
2517 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2519 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2521 TEMP += S(5, A) + E + HashWorkingPointer[t];
2527 } while (++t <= 79);
2529 HashResultPointer[0] += A;
2530 HashResultPointer[1] += B;
2531 HashResultPointer[2] += C;
2532 HashResultPointer[3] += D;
2533 HashResultPointer[4] += E;
2538 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2539 * @RandomChallenge: pointer to the entry of host challenge random number array.
2540 * @HashWorking: pointer to the entry of the working hash array.
2542 * This routine calculates the working hash array referred by @HashWorking
2543 * from the challenge random numbers associated with the host, referred by
2544 * @RandomChallenge. The result is put into the entry of the working hash
2545 * array and returned by reference through @HashWorking.
2548 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2550 *HashWorking = (*RandomChallenge ^ *HashWorking);
2554 * lpfc_hba_init - Perform special handling for LC HBA initialization
2555 * @phba: pointer to lpfc hba data structure.
2556 * @hbainit: pointer to an array of unsigned 32-bit integers.
2558 * This routine performs the special handling for LC HBA initialization.
2561 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2564 uint32_t *HashWorking;
2565 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2567 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2571 HashWorking[0] = HashWorking[78] = *pwwnn++;
2572 HashWorking[1] = HashWorking[79] = *pwwnn;
2574 for (t = 0; t < 7; t++)
2575 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2577 lpfc_sha_init(hbainit);
2578 lpfc_sha_iterate(hbainit, HashWorking);
2583 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2584 * @vport: pointer to a virtual N_Port data structure.
2586 * This routine performs the necessary cleanups before deleting the @vport.
2587 * It invokes the discovery state machine to perform necessary state
2588 * transitions and to release the ndlps associated with the @vport. Note,
2589 * the physical port is treated as @vport 0.
2592 lpfc_cleanup(struct lpfc_vport *vport)
2594 struct lpfc_hba *phba = vport->phba;
2595 struct lpfc_nodelist *ndlp, *next_ndlp;
2598 if (phba->link_state > LPFC_LINK_DOWN)
2599 lpfc_port_link_failure(vport);
2601 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2602 if (!NLP_CHK_NODE_ACT(ndlp)) {
2603 ndlp = lpfc_enable_node(vport, ndlp,
2604 NLP_STE_UNUSED_NODE);
2607 spin_lock_irq(&phba->ndlp_lock);
2608 NLP_SET_FREE_REQ(ndlp);
2609 spin_unlock_irq(&phba->ndlp_lock);
2610 /* Trigger the release of the ndlp memory */
2614 spin_lock_irq(&phba->ndlp_lock);
2615 if (NLP_CHK_FREE_REQ(ndlp)) {
2616 /* The ndlp should not be in memory free mode already */
2617 spin_unlock_irq(&phba->ndlp_lock);
2620 /* Indicate request for freeing ndlp memory */
2621 NLP_SET_FREE_REQ(ndlp);
2622 spin_unlock_irq(&phba->ndlp_lock);
2624 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2625 ndlp->nlp_DID == Fabric_DID) {
2626 /* Just free up ndlp with Fabric_DID for vports */
2631 /* take care of nodes in unused state before the state
2632 * machine taking action.
2634 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2639 if (ndlp->nlp_type & NLP_FABRIC)
2640 lpfc_disc_state_machine(vport, ndlp, NULL,
2641 NLP_EVT_DEVICE_RECOVERY);
2643 lpfc_disc_state_machine(vport, ndlp, NULL,
2647 /* At this point, ALL ndlp's should be gone
2648 * because of the previous NLP_EVT_DEVICE_RM.
2649 * Lets wait for this to happen, if needed.
2651 while (!list_empty(&vport->fc_nodes)) {
2653 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2654 "0233 Nodelist not empty\n");
2655 list_for_each_entry_safe(ndlp, next_ndlp,
2656 &vport->fc_nodes, nlp_listp) {
2657 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2659 "0282 did:x%x ndlp:x%p "
2660 "usgmap:x%x refcnt:%d\n",
2661 ndlp->nlp_DID, (void *)ndlp,
2664 &ndlp->kref.refcount));
2669 /* Wait for any activity on ndlps to settle */
2672 lpfc_cleanup_vports_rrqs(vport, NULL);
2676 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2677 * @vport: pointer to a virtual N_Port data structure.
2679 * This routine stops all the timers associated with a @vport. This function
2680 * is invoked before disabling or deleting a @vport. Note that the physical
2681 * port is treated as @vport 0.
2684 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2686 del_timer_sync(&vport->els_tmofunc);
2687 del_timer_sync(&vport->delayed_disc_tmo);
2688 lpfc_can_disctmo(vport);
2693 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2694 * @phba: pointer to lpfc hba data structure.
2696 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2697 * caller of this routine should already hold the host lock.
2700 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2702 /* Clear pending FCF rediscovery wait flag */
2703 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2705 /* Now, try to stop the timer */
2706 del_timer(&phba->fcf.redisc_wait);
2710 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2711 * @phba: pointer to lpfc hba data structure.
2713 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2714 * checks whether the FCF rediscovery wait timer is pending with the host
2715 * lock held before proceeding with disabling the timer and clearing the
2716 * wait timer pendig flag.
2719 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2721 spin_lock_irq(&phba->hbalock);
2722 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2723 /* FCF rediscovery timer already fired or stopped */
2724 spin_unlock_irq(&phba->hbalock);
2727 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2728 /* Clear failover in progress flags */
2729 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2730 spin_unlock_irq(&phba->hbalock);
2734 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2735 * @phba: pointer to lpfc hba data structure.
2737 * This routine stops all the timers associated with a HBA. This function is
2738 * invoked before either putting a HBA offline or unloading the driver.
2741 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2743 lpfc_stop_vport_timers(phba->pport);
2744 del_timer_sync(&phba->sli.mbox_tmo);
2745 del_timer_sync(&phba->fabric_block_timer);
2746 del_timer_sync(&phba->eratt_poll);
2747 del_timer_sync(&phba->hb_tmofunc);
2748 if (phba->sli_rev == LPFC_SLI_REV4) {
2749 del_timer_sync(&phba->rrq_tmr);
2750 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2752 phba->hb_outstanding = 0;
2754 switch (phba->pci_dev_grp) {
2755 case LPFC_PCI_DEV_LP:
2756 /* Stop any LightPulse device specific driver timers */
2757 del_timer_sync(&phba->fcp_poll_timer);
2759 case LPFC_PCI_DEV_OC:
2760 /* Stop any OneConnect device sepcific driver timers */
2761 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2764 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2765 "0297 Invalid device group (x%x)\n",
2773 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2774 * @phba: pointer to lpfc hba data structure.
2776 * This routine marks a HBA's management interface as blocked. Once the HBA's
2777 * management interface is marked as blocked, all the user space access to
2778 * the HBA, whether they are from sysfs interface or libdfc interface will
2779 * all be blocked. The HBA is set to block the management interface when the
2780 * driver prepares the HBA interface for online or offline.
2783 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2785 unsigned long iflag;
2786 uint8_t actcmd = MBX_HEARTBEAT;
2787 unsigned long timeout;
2789 spin_lock_irqsave(&phba->hbalock, iflag);
2790 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2791 spin_unlock_irqrestore(&phba->hbalock, iflag);
2792 if (mbx_action == LPFC_MBX_NO_WAIT)
2794 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2795 spin_lock_irqsave(&phba->hbalock, iflag);
2796 if (phba->sli.mbox_active) {
2797 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2798 /* Determine how long we might wait for the active mailbox
2799 * command to be gracefully completed by firmware.
2801 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2802 phba->sli.mbox_active) * 1000) + jiffies;
2804 spin_unlock_irqrestore(&phba->hbalock, iflag);
2806 /* Wait for the outstnading mailbox command to complete */
2807 while (phba->sli.mbox_active) {
2808 /* Check active mailbox complete status every 2ms */
2810 if (time_after(jiffies, timeout)) {
2811 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2812 "2813 Mgmt IO is Blocked %x "
2813 "- mbox cmd %x still active\n",
2814 phba->sli.sli_flag, actcmd);
2821 * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2822 * @phba: pointer to lpfc hba data structure.
2824 * Allocate RPIs for all active remote nodes. This is needed whenever
2825 * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2826 * is to fixup the temporary rpi assignments.
2829 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2831 struct lpfc_nodelist *ndlp, *next_ndlp;
2832 struct lpfc_vport **vports;
2835 if (phba->sli_rev != LPFC_SLI_REV4)
2838 vports = lpfc_create_vport_work_array(phba);
2839 if (vports != NULL) {
2840 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2841 if (vports[i]->load_flag & FC_UNLOADING)
2844 list_for_each_entry_safe(ndlp, next_ndlp,
2845 &vports[i]->fc_nodes,
2847 if (NLP_CHK_NODE_ACT(ndlp)) {
2849 lpfc_sli4_alloc_rpi(phba);
2850 lpfc_printf_vlog(ndlp->vport, KERN_INFO,
2852 "0009 rpi:%x DID:%x "
2853 "flg:%x map:%x %p\n",
2863 lpfc_destroy_vport_work_array(phba, vports);
2867 * lpfc_online - Initialize and bring a HBA online
2868 * @phba: pointer to lpfc hba data structure.
2870 * This routine initializes the HBA and brings a HBA online. During this
2871 * process, the management interface is blocked to prevent user space access
2872 * to the HBA interfering with the driver initialization.
2879 lpfc_online(struct lpfc_hba *phba)
2881 struct lpfc_vport *vport;
2882 struct lpfc_vport **vports;
2884 bool vpis_cleared = false;
2888 vport = phba->pport;
2890 if (!(vport->fc_flag & FC_OFFLINE_MODE))
2893 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2894 "0458 Bring Adapter online\n");
2896 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2898 if (!lpfc_sli_queue_setup(phba)) {
2899 lpfc_unblock_mgmt_io(phba);
2903 if (phba->sli_rev == LPFC_SLI_REV4) {
2904 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2905 lpfc_unblock_mgmt_io(phba);
2908 spin_lock_irq(&phba->hbalock);
2909 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2910 vpis_cleared = true;
2911 spin_unlock_irq(&phba->hbalock);
2913 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2914 lpfc_unblock_mgmt_io(phba);
2919 vports = lpfc_create_vport_work_array(phba);
2920 if (vports != NULL) {
2921 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2922 struct Scsi_Host *shost;
2923 shost = lpfc_shost_from_vport(vports[i]);
2924 spin_lock_irq(shost->host_lock);
2925 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2926 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2927 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2928 if (phba->sli_rev == LPFC_SLI_REV4) {
2929 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2930 if ((vpis_cleared) &&
2931 (vports[i]->port_type !=
2932 LPFC_PHYSICAL_PORT))
2935 spin_unlock_irq(shost->host_lock);
2938 lpfc_destroy_vport_work_array(phba, vports);
2940 lpfc_unblock_mgmt_io(phba);
2945 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2946 * @phba: pointer to lpfc hba data structure.
2948 * This routine marks a HBA's management interface as not blocked. Once the
2949 * HBA's management interface is marked as not blocked, all the user space
2950 * access to the HBA, whether they are from sysfs interface or libdfc
2951 * interface will be allowed. The HBA is set to block the management interface
2952 * when the driver prepares the HBA interface for online or offline and then
2953 * set to unblock the management interface afterwards.
2956 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2958 unsigned long iflag;
2960 spin_lock_irqsave(&phba->hbalock, iflag);
2961 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2962 spin_unlock_irqrestore(&phba->hbalock, iflag);
2966 * lpfc_offline_prep - Prepare a HBA to be brought offline
2967 * @phba: pointer to lpfc hba data structure.
2969 * This routine is invoked to prepare a HBA to be brought offline. It performs
2970 * unregistration login to all the nodes on all vports and flushes the mailbox
2971 * queue to make it ready to be brought offline.
2974 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2976 struct lpfc_vport *vport = phba->pport;
2977 struct lpfc_nodelist *ndlp, *next_ndlp;
2978 struct lpfc_vport **vports;
2979 struct Scsi_Host *shost;
2982 if (vport->fc_flag & FC_OFFLINE_MODE)
2985 lpfc_block_mgmt_io(phba, mbx_action);
2987 lpfc_linkdown(phba);
2989 /* Issue an unreg_login to all nodes on all vports */
2990 vports = lpfc_create_vport_work_array(phba);
2991 if (vports != NULL) {
2992 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2993 if (vports[i]->load_flag & FC_UNLOADING)
2995 shost = lpfc_shost_from_vport(vports[i]);
2996 spin_lock_irq(shost->host_lock);
2997 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2998 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2999 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3000 spin_unlock_irq(shost->host_lock);
3002 shost = lpfc_shost_from_vport(vports[i]);
3003 list_for_each_entry_safe(ndlp, next_ndlp,
3004 &vports[i]->fc_nodes,
3006 if (!NLP_CHK_NODE_ACT(ndlp))
3008 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3010 if (ndlp->nlp_type & NLP_FABRIC) {
3011 lpfc_disc_state_machine(vports[i], ndlp,
3012 NULL, NLP_EVT_DEVICE_RECOVERY);
3013 lpfc_disc_state_machine(vports[i], ndlp,
3014 NULL, NLP_EVT_DEVICE_RM);
3016 spin_lock_irq(shost->host_lock);
3017 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3018 spin_unlock_irq(shost->host_lock);
3020 * Whenever an SLI4 port goes offline, free the
3021 * RPI. Get a new RPI when the adapter port
3022 * comes back online.
3024 if (phba->sli_rev == LPFC_SLI_REV4) {
3025 lpfc_printf_vlog(ndlp->vport,
3026 KERN_INFO, LOG_NODE,
3027 "0011 lpfc_offline: "
3029 "usgmap:x%x rpi:%x\n",
3030 ndlp, ndlp->nlp_DID,
3034 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3036 lpfc_unreg_rpi(vports[i], ndlp);
3040 lpfc_destroy_vport_work_array(phba, vports);
3042 lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3046 * lpfc_offline - Bring a HBA offline
3047 * @phba: pointer to lpfc hba data structure.
3049 * This routine actually brings a HBA offline. It stops all the timers
3050 * associated with the HBA, brings down the SLI layer, and eventually
3051 * marks the HBA as in offline state for the upper layer protocol.
3054 lpfc_offline(struct lpfc_hba *phba)
3056 struct Scsi_Host *shost;
3057 struct lpfc_vport **vports;
3060 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3063 /* stop port and all timers associated with this hba */
3064 lpfc_stop_port(phba);
3065 vports = lpfc_create_vport_work_array(phba);
3067 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3068 lpfc_stop_vport_timers(vports[i]);
3069 lpfc_destroy_vport_work_array(phba, vports);
3070 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3071 "0460 Bring Adapter offline\n");
3072 /* Bring down the SLI Layer and cleanup. The HBA is offline
3074 lpfc_sli_hba_down(phba);
3075 spin_lock_irq(&phba->hbalock);
3077 spin_unlock_irq(&phba->hbalock);
3078 vports = lpfc_create_vport_work_array(phba);
3080 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3081 shost = lpfc_shost_from_vport(vports[i]);
3082 spin_lock_irq(shost->host_lock);
3083 vports[i]->work_port_events = 0;
3084 vports[i]->fc_flag |= FC_OFFLINE_MODE;
3085 spin_unlock_irq(shost->host_lock);
3087 lpfc_destroy_vport_work_array(phba, vports);
3091 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3092 * @phba: pointer to lpfc hba data structure.
3094 * This routine is to free all the SCSI buffers and IOCBs from the driver
3095 * list back to kernel. It is called from lpfc_pci_remove_one to free
3096 * the internal resources before the device is removed from the system.
3099 lpfc_scsi_free(struct lpfc_hba *phba)
3101 struct lpfc_scsi_buf *sb, *sb_next;
3102 struct lpfc_iocbq *io, *io_next;
3104 spin_lock_irq(&phba->hbalock);
3106 /* Release all the lpfc_scsi_bufs maintained by this host. */
3108 spin_lock(&phba->scsi_buf_list_put_lock);
3109 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3111 list_del(&sb->list);
3112 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3115 phba->total_scsi_bufs--;
3117 spin_unlock(&phba->scsi_buf_list_put_lock);
3119 spin_lock(&phba->scsi_buf_list_get_lock);
3120 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3122 list_del(&sb->list);
3123 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3126 phba->total_scsi_bufs--;
3128 spin_unlock(&phba->scsi_buf_list_get_lock);
3130 /* Release all the lpfc_iocbq entries maintained by this host. */
3131 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
3132 list_del(&io->list);
3134 phba->total_iocbq_bufs--;
3137 spin_unlock_irq(&phba->hbalock);
3141 * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
3142 * @phba: pointer to lpfc hba data structure.
3144 * This routine first calculates the sizes of the current els and allocated
3145 * scsi sgl lists, and then goes through all sgls to updates the physical
3146 * XRIs assigned due to port function reset. During port initialization, the
3147 * current els and allocated scsi sgl lists are 0s.
3150 * 0 - successful (for now, it always returns 0)
3153 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
3155 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3156 struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
3157 uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
3158 LIST_HEAD(els_sgl_list);
3159 LIST_HEAD(scsi_sgl_list);
3161 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
3164 * update on pci function's els xri-sgl list
3166 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3167 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3168 /* els xri-sgl expanded */
3169 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3170 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3171 "3157 ELS xri-sgl count increased from "
3172 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3174 /* allocate the additional els sgls */
3175 for (i = 0; i < xri_cnt; i++) {
3176 sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3178 if (sglq_entry == NULL) {
3179 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3180 "2562 Failure to allocate an "
3181 "ELS sgl entry:%d\n", i);
3185 sglq_entry->buff_type = GEN_BUFF_TYPE;
3186 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3188 if (sglq_entry->virt == NULL) {
3190 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3191 "2563 Failure to allocate an "
3192 "ELS mbuf:%d\n", i);
3196 sglq_entry->sgl = sglq_entry->virt;
3197 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3198 sglq_entry->state = SGL_FREED;
3199 list_add_tail(&sglq_entry->list, &els_sgl_list);
3201 spin_lock_irq(&phba->hbalock);
3202 spin_lock(&pring->ring_lock);
3203 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3204 spin_unlock(&pring->ring_lock);
3205 spin_unlock_irq(&phba->hbalock);
3206 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3207 /* els xri-sgl shrinked */
3208 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3209 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3210 "3158 ELS xri-sgl count decreased from "
3211 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3213 spin_lock_irq(&phba->hbalock);
3214 spin_lock(&pring->ring_lock);
3215 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
3216 spin_unlock(&pring->ring_lock);
3217 spin_unlock_irq(&phba->hbalock);
3218 /* release extra els sgls from list */
3219 for (i = 0; i < xri_cnt; i++) {
3220 list_remove_head(&els_sgl_list,
3221 sglq_entry, struct lpfc_sglq, list);
3223 lpfc_mbuf_free(phba, sglq_entry->virt,
3228 spin_lock_irq(&phba->hbalock);
3229 spin_lock(&pring->ring_lock);
3230 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3231 spin_unlock(&pring->ring_lock);
3232 spin_unlock_irq(&phba->hbalock);
3234 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3235 "3163 ELS xri-sgl count unchanged: %d\n",
3237 phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3239 /* update xris to els sgls on the list */
3241 sglq_entry_next = NULL;
3242 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3243 &phba->sli4_hba.lpfc_sgl_list, list) {
3244 lxri = lpfc_sli4_next_xritag(phba);
3245 if (lxri == NO_XRI) {
3246 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3247 "2400 Failed to allocate xri for "
3252 sglq_entry->sli4_lxritag = lxri;
3253 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3257 * update on pci function's allocated scsi xri-sgl list
3259 phba->total_scsi_bufs = 0;
3261 /* maximum number of xris available for scsi buffers */
3262 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3265 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3266 "2401 Current allocated SCSI xri-sgl count:%d, "
3267 "maximum SCSI xri count:%d\n",
3268 phba->sli4_hba.scsi_xri_cnt,
3269 phba->sli4_hba.scsi_xri_max);
3271 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3272 spin_lock(&phba->scsi_buf_list_put_lock);
3273 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3274 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3275 spin_unlock(&phba->scsi_buf_list_put_lock);
3276 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3278 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3279 /* max scsi xri shrinked below the allocated scsi buffers */
3280 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3281 phba->sli4_hba.scsi_xri_max;
3282 /* release the extra allocated scsi buffers */
3283 for (i = 0; i < scsi_xri_cnt; i++) {
3284 list_remove_head(&scsi_sgl_list, psb,
3285 struct lpfc_scsi_buf, list);
3287 pci_pool_free(phba->lpfc_scsi_dma_buf_pool,
3288 psb->data, psb->dma_handle);
3292 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3293 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3294 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3297 /* update xris associated to remaining allocated scsi buffers */
3300 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3301 lxri = lpfc_sli4_next_xritag(phba);
3302 if (lxri == NO_XRI) {
3303 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3304 "2560 Failed to allocate xri for "
3309 psb->cur_iocbq.sli4_lxritag = lxri;
3310 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3312 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3313 spin_lock(&phba->scsi_buf_list_put_lock);
3314 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3315 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3316 spin_unlock(&phba->scsi_buf_list_put_lock);
3317 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3322 lpfc_free_els_sgl_list(phba);
3323 lpfc_scsi_free(phba);
3328 * lpfc_create_port - Create an FC port
3329 * @phba: pointer to lpfc hba data structure.
3330 * @instance: a unique integer ID to this FC port.
3331 * @dev: pointer to the device data structure.
3333 * This routine creates a FC port for the upper layer protocol. The FC port
3334 * can be created on top of either a physical port or a virtual port provided
3335 * by the HBA. This routine also allocates a SCSI host data structure (shost)
3336 * and associates the FC port created before adding the shost into the SCSI
3340 * @vport - pointer to the virtual N_Port data structure.
3341 * NULL - port create failed.
3344 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3346 struct lpfc_vport *vport;
3347 struct Scsi_Host *shost;
3350 if (dev != &phba->pcidev->dev) {
3351 shost = scsi_host_alloc(&lpfc_vport_template,
3352 sizeof(struct lpfc_vport));
3354 if (phba->sli_rev == LPFC_SLI_REV4)
3355 shost = scsi_host_alloc(&lpfc_template,
3356 sizeof(struct lpfc_vport));
3358 shost = scsi_host_alloc(&lpfc_template_s3,
3359 sizeof(struct lpfc_vport));
3364 vport = (struct lpfc_vport *) shost->hostdata;
3366 vport->load_flag |= FC_LOADING;
3367 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3368 vport->fc_rscn_flush = 0;
3370 lpfc_get_vport_cfgparam(vport);
3371 shost->unique_id = instance;
3372 shost->max_id = LPFC_MAX_TARGET;
3373 shost->max_lun = vport->cfg_max_luns;
3374 shost->this_id = -1;
3375 shost->max_cmd_len = 16;
3376 shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3377 if (phba->sli_rev == LPFC_SLI_REV4) {
3378 shost->dma_boundary =
3379 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3380 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3384 * Set initial can_queue value since 0 is no longer supported and
3385 * scsi_add_host will fail. This will be adjusted later based on the
3386 * max xri value determined in hba setup.
3388 shost->can_queue = phba->cfg_hba_queue_depth - 10;
3389 if (dev != &phba->pcidev->dev) {
3390 shost->transportt = lpfc_vport_transport_template;
3391 vport->port_type = LPFC_NPIV_PORT;
3393 shost->transportt = lpfc_transport_template;
3394 vport->port_type = LPFC_PHYSICAL_PORT;
3397 /* Initialize all internally managed lists. */
3398 INIT_LIST_HEAD(&vport->fc_nodes);
3399 INIT_LIST_HEAD(&vport->rcv_buffer_list);
3400 spin_lock_init(&vport->work_port_lock);
3402 init_timer(&vport->fc_disctmo);
3403 vport->fc_disctmo.function = lpfc_disc_timeout;
3404 vport->fc_disctmo.data = (unsigned long)vport;
3406 init_timer(&vport->els_tmofunc);
3407 vport->els_tmofunc.function = lpfc_els_timeout;
3408 vport->els_tmofunc.data = (unsigned long)vport;
3410 init_timer(&vport->delayed_disc_tmo);
3411 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3412 vport->delayed_disc_tmo.data = (unsigned long)vport;
3414 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3418 spin_lock_irq(&phba->hbalock);
3419 list_add_tail(&vport->listentry, &phba->port_list);
3420 spin_unlock_irq(&phba->hbalock);
3424 scsi_host_put(shost);
3430 * destroy_port - destroy an FC port
3431 * @vport: pointer to an lpfc virtual N_Port data structure.
3433 * This routine destroys a FC port from the upper layer protocol. All the
3434 * resources associated with the port are released.
3437 destroy_port(struct lpfc_vport *vport)
3439 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3440 struct lpfc_hba *phba = vport->phba;
3442 lpfc_debugfs_terminate(vport);
3443 fc_remove_host(shost);
3444 scsi_remove_host(shost);
3446 spin_lock_irq(&phba->hbalock);
3447 list_del_init(&vport->listentry);
3448 spin_unlock_irq(&phba->hbalock);
3450 lpfc_cleanup(vport);
3455 * lpfc_get_instance - Get a unique integer ID
3457 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3458 * uses the kernel idr facility to perform the task.
3461 * instance - a unique integer ID allocated as the new instance.
3462 * -1 - lpfc get instance failed.
3465 lpfc_get_instance(void)
3469 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3470 return ret < 0 ? -1 : ret;
3474 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3475 * @shost: pointer to SCSI host data structure.
3476 * @time: elapsed time of the scan in jiffies.
3478 * This routine is called by the SCSI layer with a SCSI host to determine
3479 * whether the scan host is finished.
3481 * Note: there is no scan_start function as adapter initialization will have
3482 * asynchronously kicked off the link initialization.
3485 * 0 - SCSI host scan is not over yet.
3486 * 1 - SCSI host scan is over.
3488 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3490 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3491 struct lpfc_hba *phba = vport->phba;
3494 spin_lock_irq(shost->host_lock);
3496 if (vport->load_flag & FC_UNLOADING) {
3500 if (time >= msecs_to_jiffies(30 * 1000)) {
3501 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3502 "0461 Scanning longer than 30 "
3503 "seconds. Continuing initialization\n");
3507 if (time >= msecs_to_jiffies(15 * 1000) &&
3508 phba->link_state <= LPFC_LINK_DOWN) {
3509 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3510 "0465 Link down longer than 15 "
3511 "seconds. Continuing initialization\n");
3516 if (vport->port_state != LPFC_VPORT_READY)
3518 if (vport->num_disc_nodes || vport->fc_prli_sent)
3520 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3522 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3528 spin_unlock_irq(shost->host_lock);
3533 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3534 * @shost: pointer to SCSI host data structure.
3536 * This routine initializes a given SCSI host attributes on a FC port. The
3537 * SCSI host can be either on top of a physical port or a virtual port.
3539 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3541 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3542 struct lpfc_hba *phba = vport->phba;
3544 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
3547 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3548 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3549 fc_host_supported_classes(shost) = FC_COS_CLASS3;
3551 memset(fc_host_supported_fc4s(shost), 0,
3552 sizeof(fc_host_supported_fc4s(shost)));
3553 fc_host_supported_fc4s(shost)[2] = 1;
3554 fc_host_supported_fc4s(shost)[7] = 1;
3556 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3557 sizeof fc_host_symbolic_name(shost));
3559 fc_host_supported_speeds(shost) = 0;
3560 if (phba->lmt & LMT_32Gb)
3561 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
3562 if (phba->lmt & LMT_16Gb)
3563 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3564 if (phba->lmt & LMT_10Gb)
3565 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3566 if (phba->lmt & LMT_8Gb)
3567 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3568 if (phba->lmt & LMT_4Gb)
3569 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3570 if (phba->lmt & LMT_2Gb)
3571 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3572 if (phba->lmt & LMT_1Gb)
3573 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3575 fc_host_maxframe_size(shost) =
3576 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3577 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3579 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3581 /* This value is also unchanging */
3582 memset(fc_host_active_fc4s(shost), 0,
3583 sizeof(fc_host_active_fc4s(shost)));
3584 fc_host_active_fc4s(shost)[2] = 1;
3585 fc_host_active_fc4s(shost)[7] = 1;
3587 fc_host_max_npiv_vports(shost) = phba->max_vpi;
3588 spin_lock_irq(shost->host_lock);
3589 vport->load_flag &= ~FC_LOADING;
3590 spin_unlock_irq(shost->host_lock);
3594 * lpfc_stop_port_s3 - Stop SLI3 device port
3595 * @phba: pointer to lpfc hba data structure.
3597 * This routine is invoked to stop an SLI3 device port, it stops the device
3598 * from generating interrupts and stops the device driver's timers for the
3602 lpfc_stop_port_s3(struct lpfc_hba *phba)
3604 /* Clear all interrupt enable conditions */
3605 writel(0, phba->HCregaddr);
3606 readl(phba->HCregaddr); /* flush */
3607 /* Clear all pending interrupts */
3608 writel(0xffffffff, phba->HAregaddr);
3609 readl(phba->HAregaddr); /* flush */
3611 /* Reset some HBA SLI setup states */
3612 lpfc_stop_hba_timers(phba);
3613 phba->pport->work_port_events = 0;
3617 * lpfc_stop_port_s4 - Stop SLI4 device port
3618 * @phba: pointer to lpfc hba data structure.
3620 * This routine is invoked to stop an SLI4 device port, it stops the device
3621 * from generating interrupts and stops the device driver's timers for the
3625 lpfc_stop_port_s4(struct lpfc_hba *phba)
3627 /* Reset some HBA SLI4 setup states */
3628 lpfc_stop_hba_timers(phba);
3629 phba->pport->work_port_events = 0;
3630 phba->sli4_hba.intr_enable = 0;
3634 * lpfc_stop_port - Wrapper function for stopping hba port
3635 * @phba: Pointer to HBA context object.
3637 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3638 * the API jump table function pointer from the lpfc_hba struct.
3641 lpfc_stop_port(struct lpfc_hba *phba)
3643 phba->lpfc_stop_port(phba);
3647 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3648 * @phba: Pointer to hba for which this call is being executed.
3650 * This routine starts the timer waiting for the FCF rediscovery to complete.
3653 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3655 unsigned long fcf_redisc_wait_tmo =
3656 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3657 /* Start fcf rediscovery wait period timer */
3658 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3659 spin_lock_irq(&phba->hbalock);
3660 /* Allow action to new fcf asynchronous event */
3661 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3662 /* Mark the FCF rediscovery pending state */
3663 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3664 spin_unlock_irq(&phba->hbalock);
3668 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3669 * @ptr: Map to lpfc_hba data structure pointer.
3671 * This routine is invoked when waiting for FCF table rediscover has been
3672 * timed out. If new FCF record(s) has (have) been discovered during the
3673 * wait period, a new FCF event shall be added to the FCOE async event
3674 * list, and then worker thread shall be waked up for processing from the
3675 * worker thread context.
3678 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3680 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3682 /* Don't send FCF rediscovery event if timer cancelled */
3683 spin_lock_irq(&phba->hbalock);
3684 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3685 spin_unlock_irq(&phba->hbalock);
3688 /* Clear FCF rediscovery timer pending flag */
3689 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3690 /* FCF rediscovery event to worker thread */
3691 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3692 spin_unlock_irq(&phba->hbalock);
3693 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3694 "2776 FCF rediscover quiescent timer expired\n");
3695 /* wake up worker thread */
3696 lpfc_worker_wake_up(phba);
3700 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3701 * @phba: pointer to lpfc hba data structure.
3702 * @acqe_link: pointer to the async link completion queue entry.
3704 * This routine is to parse the SLI4 link-attention link fault code and
3705 * translate it into the base driver's read link attention mailbox command
3708 * Return: Link-attention status in terms of base driver's coding.
3711 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3712 struct lpfc_acqe_link *acqe_link)
3714 uint16_t latt_fault;
3716 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3717 case LPFC_ASYNC_LINK_FAULT_NONE:
3718 case LPFC_ASYNC_LINK_FAULT_LOCAL:
3719 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3723 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3724 "0398 Invalid link fault code: x%x\n",
3725 bf_get(lpfc_acqe_link_fault, acqe_link));
3726 latt_fault = MBXERR_ERROR;
3733 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3734 * @phba: pointer to lpfc hba data structure.
3735 * @acqe_link: pointer to the async link completion queue entry.
3737 * This routine is to parse the SLI4 link attention type and translate it
3738 * into the base driver's link attention type coding.
3740 * Return: Link attention type in terms of base driver's coding.
3743 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3744 struct lpfc_acqe_link *acqe_link)
3748 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3749 case LPFC_ASYNC_LINK_STATUS_DOWN:
3750 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3751 att_type = LPFC_ATT_LINK_DOWN;
3753 case LPFC_ASYNC_LINK_STATUS_UP:
3754 /* Ignore physical link up events - wait for logical link up */
3755 att_type = LPFC_ATT_RESERVED;
3757 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3758 att_type = LPFC_ATT_LINK_UP;
3761 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3762 "0399 Invalid link attention type: x%x\n",
3763 bf_get(lpfc_acqe_link_status, acqe_link));
3764 att_type = LPFC_ATT_RESERVED;
3771 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3772 * @phba: pointer to lpfc hba data structure.
3774 * This routine is to get an SLI3 FC port's link speed in Mbps.
3776 * Return: link speed in terms of Mbps.
3779 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3781 uint32_t link_speed;
3783 if (!lpfc_is_link_up(phba))
3786 if (phba->sli_rev <= LPFC_SLI_REV3) {
3787 switch (phba->fc_linkspeed) {
3788 case LPFC_LINK_SPEED_1GHZ:
3791 case LPFC_LINK_SPEED_2GHZ:
3794 case LPFC_LINK_SPEED_4GHZ:
3797 case LPFC_LINK_SPEED_8GHZ:
3800 case LPFC_LINK_SPEED_10GHZ:
3803 case LPFC_LINK_SPEED_16GHZ:
3810 if (phba->sli4_hba.link_state.logical_speed)
3812 phba->sli4_hba.link_state.logical_speed;
3814 link_speed = phba->sli4_hba.link_state.speed;
3820 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3821 * @phba: pointer to lpfc hba data structure.
3822 * @evt_code: asynchronous event code.
3823 * @speed_code: asynchronous event link speed code.
3825 * This routine is to parse the giving SLI4 async event link speed code into
3826 * value of Mbps for the link speed.
3828 * Return: link speed in terms of Mbps.
3831 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3834 uint32_t port_speed;
3837 case LPFC_TRAILER_CODE_LINK:
3838 switch (speed_code) {
3839 case LPFC_ASYNC_LINK_SPEED_ZERO:
3842 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3845 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3848 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3851 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3854 case LPFC_ASYNC_LINK_SPEED_20GBPS:
3857 case LPFC_ASYNC_LINK_SPEED_25GBPS:
3860 case LPFC_ASYNC_LINK_SPEED_40GBPS:
3867 case LPFC_TRAILER_CODE_FC:
3868 switch (speed_code) {
3869 case LPFC_FC_LA_SPEED_UNKNOWN:
3872 case LPFC_FC_LA_SPEED_1G:
3875 case LPFC_FC_LA_SPEED_2G:
3878 case LPFC_FC_LA_SPEED_4G:
3881 case LPFC_FC_LA_SPEED_8G:
3884 case LPFC_FC_LA_SPEED_10G:
3887 case LPFC_FC_LA_SPEED_16G:
3890 case LPFC_FC_LA_SPEED_32G:
3904 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3905 * @phba: pointer to lpfc hba data structure.
3906 * @acqe_link: pointer to the async link completion queue entry.
3908 * This routine is to handle the SLI4 asynchronous FCoE link event.
3911 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3912 struct lpfc_acqe_link *acqe_link)
3914 struct lpfc_dmabuf *mp;
3917 struct lpfc_mbx_read_top *la;
3921 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3922 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3924 phba->fcoe_eventtag = acqe_link->event_tag;
3925 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3927 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3928 "0395 The mboxq allocation failed\n");
3931 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3933 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3934 "0396 The lpfc_dmabuf allocation failed\n");
3937 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3939 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3940 "0397 The mbuf allocation failed\n");
3941 goto out_free_dmabuf;
3944 /* Cleanup any outstanding ELS commands */
3945 lpfc_els_flush_all_cmd(phba);
3947 /* Block ELS IOCBs until we have done process link event */
3948 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3950 /* Update link event statistics */
3951 phba->sli.slistat.link_event++;
3953 /* Create lpfc_handle_latt mailbox command from link ACQE */
3954 lpfc_read_topology(phba, pmb, mp);
3955 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3956 pmb->vport = phba->pport;
3958 /* Keep the link status for extra SLI4 state machine reference */
3959 phba->sli4_hba.link_state.speed =
3960 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3961 bf_get(lpfc_acqe_link_speed, acqe_link));
3962 phba->sli4_hba.link_state.duplex =
3963 bf_get(lpfc_acqe_link_duplex, acqe_link);
3964 phba->sli4_hba.link_state.status =
3965 bf_get(lpfc_acqe_link_status, acqe_link);
3966 phba->sli4_hba.link_state.type =
3967 bf_get(lpfc_acqe_link_type, acqe_link);
3968 phba->sli4_hba.link_state.number =
3969 bf_get(lpfc_acqe_link_number, acqe_link);
3970 phba->sli4_hba.link_state.fault =
3971 bf_get(lpfc_acqe_link_fault, acqe_link);
3972 phba->sli4_hba.link_state.logical_speed =
3973 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3975 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3976 "2900 Async FC/FCoE Link event - Speed:%dGBit "
3977 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3978 "Logical speed:%dMbps Fault:%d\n",
3979 phba->sli4_hba.link_state.speed,
3980 phba->sli4_hba.link_state.topology,
3981 phba->sli4_hba.link_state.status,
3982 phba->sli4_hba.link_state.type,
3983 phba->sli4_hba.link_state.number,
3984 phba->sli4_hba.link_state.logical_speed,
3985 phba->sli4_hba.link_state.fault);
3987 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3988 * topology info. Note: Optional for non FC-AL ports.
3990 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3991 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3992 if (rc == MBX_NOT_FINISHED)
3993 goto out_free_dmabuf;
3997 * For FCoE Mode: fill in all the topology information we need and call
3998 * the READ_TOPOLOGY completion routine to continue without actually
3999 * sending the READ_TOPOLOGY mailbox command to the port.
4001 /* Parse and translate status field */
4003 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
4005 /* Parse and translate link attention fields */
4006 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4007 la->eventTag = acqe_link->event_tag;
4008 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4009 bf_set(lpfc_mbx_read_top_link_spd, la,
4010 (bf_get(lpfc_acqe_link_speed, acqe_link)));
4012 /* Fake the the following irrelvant fields */
4013 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4014 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4015 bf_set(lpfc_mbx_read_top_il, la, 0);
4016 bf_set(lpfc_mbx_read_top_pb, la, 0);
4017 bf_set(lpfc_mbx_read_top_fa, la, 0);
4018 bf_set(lpfc_mbx_read_top_mm, la, 0);
4020 /* Invoke the lpfc_handle_latt mailbox command callback function */
4021 lpfc_mbx_cmpl_read_topology(phba, pmb);
4028 mempool_free(pmb, phba->mbox_mem_pool);
4032 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
4033 * @phba: pointer to lpfc hba data structure.
4034 * @acqe_fc: pointer to the async fc completion queue entry.
4036 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
4037 * that the event was received and then issue a read_topology mailbox command so
4038 * that the rest of the driver will treat it the same as SLI3.
4041 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
4043 struct lpfc_dmabuf *mp;
4046 struct lpfc_mbx_read_top *la;
4049 if (bf_get(lpfc_trailer_type, acqe_fc) !=
4050 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
4051 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4052 "2895 Non FC link Event detected.(%d)\n",
4053 bf_get(lpfc_trailer_type, acqe_fc));
4056 /* Keep the link status for extra SLI4 state machine reference */
4057 phba->sli4_hba.link_state.speed =
4058 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4059 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4060 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4061 phba->sli4_hba.link_state.topology =
4062 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4063 phba->sli4_hba.link_state.status =
4064 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4065 phba->sli4_hba.link_state.type =
4066 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4067 phba->sli4_hba.link_state.number =
4068 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4069 phba->sli4_hba.link_state.fault =
4070 bf_get(lpfc_acqe_link_fault, acqe_fc);
4071 phba->sli4_hba.link_state.logical_speed =
4072 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4073 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4074 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4075 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4076 "%dMbps Fault:%d\n",
4077 phba->sli4_hba.link_state.speed,
4078 phba->sli4_hba.link_state.topology,
4079 phba->sli4_hba.link_state.status,
4080 phba->sli4_hba.link_state.type,
4081 phba->sli4_hba.link_state.number,
4082 phba->sli4_hba.link_state.logical_speed,
4083 phba->sli4_hba.link_state.fault);
4084 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4086 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4087 "2897 The mboxq allocation failed\n");
4090 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4092 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4093 "2898 The lpfc_dmabuf allocation failed\n");
4096 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4098 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4099 "2899 The mbuf allocation failed\n");
4100 goto out_free_dmabuf;
4103 /* Cleanup any outstanding ELS commands */
4104 lpfc_els_flush_all_cmd(phba);
4106 /* Block ELS IOCBs until we have done process link event */
4107 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
4109 /* Update link event statistics */
4110 phba->sli.slistat.link_event++;
4112 /* Create lpfc_handle_latt mailbox command from link ACQE */
4113 lpfc_read_topology(phba, pmb, mp);
4114 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4115 pmb->vport = phba->pport;
4117 if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
4118 /* Parse and translate status field */
4120 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba,
4123 /* Parse and translate link attention fields */
4124 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
4125 la->eventTag = acqe_fc->event_tag;
4126 bf_set(lpfc_mbx_read_top_att_type, la,
4127 LPFC_FC_LA_TYPE_LINK_DOWN);
4129 /* Invoke the mailbox command callback function */
4130 lpfc_mbx_cmpl_read_topology(phba, pmb);
4135 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4136 if (rc == MBX_NOT_FINISHED)
4137 goto out_free_dmabuf;
4143 mempool_free(pmb, phba->mbox_mem_pool);
4147 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4148 * @phba: pointer to lpfc hba data structure.
4149 * @acqe_fc: pointer to the async SLI completion queue entry.
4151 * This routine is to handle the SLI4 asynchronous SLI events.
4154 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4160 uint8_t operational = 0;
4161 struct temp_event temp_event_data;
4162 struct lpfc_acqe_misconfigured_event *misconfigured;
4163 struct Scsi_Host *shost;
4165 evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4167 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4168 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4169 "x%08x SLI Event Type:%d\n",
4170 acqe_sli->event_data1, acqe_sli->event_data2,
4173 port_name = phba->Port[0];
4174 if (port_name == 0x00)
4175 port_name = '?'; /* get port name is empty */
4178 case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4179 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4180 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4181 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4183 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4184 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4185 acqe_sli->event_data1, port_name);
4187 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
4188 shost = lpfc_shost_from_vport(phba->pport);
4189 fc_host_post_vendor_event(shost, fc_get_event_number(),
4190 sizeof(temp_event_data),
4191 (char *)&temp_event_data,
4192 SCSI_NL_VID_TYPE_PCI
4193 | PCI_VENDOR_ID_EMULEX);
4195 case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4196 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4197 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4198 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4200 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4201 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4202 acqe_sli->event_data1, port_name);
4204 shost = lpfc_shost_from_vport(phba->pport);
4205 fc_host_post_vendor_event(shost, fc_get_event_number(),
4206 sizeof(temp_event_data),
4207 (char *)&temp_event_data,
4208 SCSI_NL_VID_TYPE_PCI
4209 | PCI_VENDOR_ID_EMULEX);
4211 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4212 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4213 &acqe_sli->event_data1;
4215 /* fetch the status for this port */
4216 switch (phba->sli4_hba.lnk_info.lnk_no) {
4217 case LPFC_LINK_NUMBER_0:
4218 status = bf_get(lpfc_sli_misconfigured_port0_state,
4219 &misconfigured->theEvent);
4220 operational = bf_get(lpfc_sli_misconfigured_port0_op,
4221 &misconfigured->theEvent);
4223 case LPFC_LINK_NUMBER_1:
4224 status = bf_get(lpfc_sli_misconfigured_port1_state,
4225 &misconfigured->theEvent);
4226 operational = bf_get(lpfc_sli_misconfigured_port1_op,
4227 &misconfigured->theEvent);
4229 case LPFC_LINK_NUMBER_2:
4230 status = bf_get(lpfc_sli_misconfigured_port2_state,
4231 &misconfigured->theEvent);
4232 operational = bf_get(lpfc_sli_misconfigured_port2_op,
4233 &misconfigured->theEvent);
4235 case LPFC_LINK_NUMBER_3:
4236 status = bf_get(lpfc_sli_misconfigured_port3_state,
4237 &misconfigured->theEvent);
4238 operational = bf_get(lpfc_sli_misconfigured_port3_op,
4239 &misconfigured->theEvent);
4242 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4244 "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
4245 "event: Invalid link %d",
4246 phba->sli4_hba.lnk_info.lnk_no);
4250 /* Skip if optic state unchanged */
4251 if (phba->sli4_hba.lnk_info.optic_state == status)
4255 case LPFC_SLI_EVENT_STATUS_VALID:
4256 sprintf(message, "Physical Link is functional");
4258 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4259 sprintf(message, "Optics faulted/incorrectly "
4260 "installed/not installed - Reseat optics, "
4261 "if issue not resolved, replace.");
4263 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4265 "Optics of two types installed - Remove one "
4266 "optic or install matching pair of optics.");
4268 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4269 sprintf(message, "Incompatible optics - Replace with "
4270 "compatible optics for card to function.");
4272 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
4273 sprintf(message, "Unqualified optics - Replace with "
4274 "Avago optics for Warranty and Technical "
4275 "Support - Link is%s operational",
4276 (operational) ? "" : " not");
4278 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
4279 sprintf(message, "Uncertified optics - Replace with "
4280 "Avago-certified optics to enable link "
4281 "operation - Link is%s operational",
4282 (operational) ? "" : " not");
4285 /* firmware is reporting a status we don't know about */
4286 sprintf(message, "Unknown event status x%02x", status);
4289 phba->sli4_hba.lnk_info.optic_state = status;
4290 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4291 "3176 Port Name %c %s\n", port_name, message);
4293 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4294 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4295 "3192 Remote DPort Test Initiated - "
4296 "Event Data1:x%08x Event Data2: x%08x\n",
4297 acqe_sli->event_data1, acqe_sli->event_data2);
4300 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4301 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4302 "x%08x SLI Event Type:%d\n",
4303 acqe_sli->event_data1, acqe_sli->event_data2,
4310 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4311 * @vport: pointer to vport data structure.
4313 * This routine is to perform Clear Virtual Link (CVL) on a vport in
4314 * response to a CVL event.
4316 * Return the pointer to the ndlp with the vport if successful, otherwise
4319 static struct lpfc_nodelist *
4320 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4322 struct lpfc_nodelist *ndlp;
4323 struct Scsi_Host *shost;
4324 struct lpfc_hba *phba;
4331 ndlp = lpfc_findnode_did(vport, Fabric_DID);
4333 /* Cannot find existing Fabric ndlp, so allocate a new one */
4334 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4337 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4338 /* Set the node type */
4339 ndlp->nlp_type |= NLP_FABRIC;
4340 /* Put ndlp onto node list */
4341 lpfc_enqueue_node(vport, ndlp);
4342 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4343 /* re-setup ndlp without removing from node list */
4344 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4348 if ((phba->pport->port_state < LPFC_FLOGI) &&
4349 (phba->pport->port_state != LPFC_VPORT_FAILED))
4351 /* If virtual link is not yet instantiated ignore CVL */
4352 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4353 && (vport->port_state != LPFC_VPORT_FAILED))
4355 shost = lpfc_shost_from_vport(vport);
4358 lpfc_linkdown_port(vport);
4359 lpfc_cleanup_pending_mbox(vport);
4360 spin_lock_irq(shost->host_lock);
4361 vport->fc_flag |= FC_VPORT_CVL_RCVD;
4362 spin_unlock_irq(shost->host_lock);
4368 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4369 * @vport: pointer to lpfc hba data structure.
4371 * This routine is to perform Clear Virtual Link (CVL) on all vports in
4372 * response to a FCF dead event.
4375 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4377 struct lpfc_vport **vports;
4380 vports = lpfc_create_vport_work_array(phba);
4382 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4383 lpfc_sli4_perform_vport_cvl(vports[i]);
4384 lpfc_destroy_vport_work_array(phba, vports);
4388 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4389 * @phba: pointer to lpfc hba data structure.
4390 * @acqe_link: pointer to the async fcoe completion queue entry.
4392 * This routine is to handle the SLI4 asynchronous fcoe event.
4395 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4396 struct lpfc_acqe_fip *acqe_fip)
4398 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4400 struct lpfc_vport *vport;
4401 struct lpfc_nodelist *ndlp;
4402 struct Scsi_Host *shost;
4403 int active_vlink_present;
4404 struct lpfc_vport **vports;
4407 phba->fc_eventTag = acqe_fip->event_tag;
4408 phba->fcoe_eventtag = acqe_fip->event_tag;
4409 switch (event_type) {
4410 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4411 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4412 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4413 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4415 "2546 New FCF event, evt_tag:x%x, "
4417 acqe_fip->event_tag,
4420 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4422 "2788 FCF param modified event, "
4423 "evt_tag:x%x, index:x%x\n",
4424 acqe_fip->event_tag,
4426 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4428 * During period of FCF discovery, read the FCF
4429 * table record indexed by the event to update
4430 * FCF roundrobin failover eligible FCF bmask.
4432 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4434 "2779 Read FCF (x%x) for updating "
4435 "roundrobin FCF failover bmask\n",
4437 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4440 /* If the FCF discovery is in progress, do nothing. */
4441 spin_lock_irq(&phba->hbalock);
4442 if (phba->hba_flag & FCF_TS_INPROG) {
4443 spin_unlock_irq(&phba->hbalock);
4446 /* If fast FCF failover rescan event is pending, do nothing */
4447 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
4448 spin_unlock_irq(&phba->hbalock);
4452 /* If the FCF has been in discovered state, do nothing. */
4453 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4454 spin_unlock_irq(&phba->hbalock);
4457 spin_unlock_irq(&phba->hbalock);
4459 /* Otherwise, scan the entire FCF table and re-discover SAN */
4460 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4461 "2770 Start FCF table scan per async FCF "
4462 "event, evt_tag:x%x, index:x%x\n",
4463 acqe_fip->event_tag, acqe_fip->index);
4464 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4465 LPFC_FCOE_FCF_GET_FIRST);
4467 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4468 "2547 Issue FCF scan read FCF mailbox "
4469 "command failed (x%x)\n", rc);
4472 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4473 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4474 "2548 FCF Table full count 0x%x tag 0x%x\n",
4475 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4476 acqe_fip->event_tag);
4479 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4480 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4481 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4482 "2549 FCF (x%x) disconnected from network, "
4483 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4485 * If we are in the middle of FCF failover process, clear
4486 * the corresponding FCF bit in the roundrobin bitmap.
4488 spin_lock_irq(&phba->hbalock);
4489 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
4490 (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
4491 spin_unlock_irq(&phba->hbalock);
4492 /* Update FLOGI FCF failover eligible FCF bmask */
4493 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4496 spin_unlock_irq(&phba->hbalock);
4498 /* If the event is not for currently used fcf do nothing */
4499 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4503 * Otherwise, request the port to rediscover the entire FCF
4504 * table for a fast recovery from case that the current FCF
4505 * is no longer valid as we are not in the middle of FCF
4506 * failover process already.
4508 spin_lock_irq(&phba->hbalock);
4509 /* Mark the fast failover process in progress */
4510 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4511 spin_unlock_irq(&phba->hbalock);
4513 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4514 "2771 Start FCF fast failover process due to "
4515 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4516 "\n", acqe_fip->event_tag, acqe_fip->index);
4517 rc = lpfc_sli4_redisc_fcf_table(phba);
4519 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4521 "2772 Issue FCF rediscover mabilbox "
4522 "command failed, fail through to FCF "
4524 spin_lock_irq(&phba->hbalock);
4525 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4526 spin_unlock_irq(&phba->hbalock);
4528 * Last resort will fail over by treating this
4529 * as a link down to FCF registration.
4531 lpfc_sli4_fcf_dead_failthrough(phba);
4533 /* Reset FCF roundrobin bmask for new discovery */
4534 lpfc_sli4_clear_fcf_rr_bmask(phba);
4536 * Handling fast FCF failover to a DEAD FCF event is
4537 * considered equalivant to receiving CVL to all vports.
4539 lpfc_sli4_perform_all_vport_cvl(phba);
4542 case LPFC_FIP_EVENT_TYPE_CVL:
4543 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4544 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4545 "2718 Clear Virtual Link Received for VPI 0x%x"
4546 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4548 vport = lpfc_find_vport_by_vpid(phba,
4550 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4553 active_vlink_present = 0;
4555 vports = lpfc_create_vport_work_array(phba);
4557 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4559 if ((!(vports[i]->fc_flag &
4560 FC_VPORT_CVL_RCVD)) &&
4561 (vports[i]->port_state > LPFC_FDISC)) {
4562 active_vlink_present = 1;
4566 lpfc_destroy_vport_work_array(phba, vports);
4570 * Don't re-instantiate if vport is marked for deletion.
4571 * If we are here first then vport_delete is going to wait
4572 * for discovery to complete.
4574 if (!(vport->load_flag & FC_UNLOADING) &&
4575 active_vlink_present) {
4577 * If there are other active VLinks present,
4578 * re-instantiate the Vlink using FDISC.
4580 mod_timer(&ndlp->nlp_delayfunc,
4581 jiffies + msecs_to_jiffies(1000));
4582 shost = lpfc_shost_from_vport(vport);
4583 spin_lock_irq(shost->host_lock);
4584 ndlp->nlp_flag |= NLP_DELAY_TMO;
4585 spin_unlock_irq(shost->host_lock);
4586 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4587 vport->port_state = LPFC_FDISC;
4590 * Otherwise, we request port to rediscover
4591 * the entire FCF table for a fast recovery
4592 * from possible case that the current FCF
4593 * is no longer valid if we are not already
4594 * in the FCF failover process.
4596 spin_lock_irq(&phba->hbalock);
4597 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4598 spin_unlock_irq(&phba->hbalock);
4601 /* Mark the fast failover process in progress */
4602 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4603 spin_unlock_irq(&phba->hbalock);
4604 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4606 "2773 Start FCF failover per CVL, "
4607 "evt_tag:x%x\n", acqe_fip->event_tag);
4608 rc = lpfc_sli4_redisc_fcf_table(phba);
4610 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4612 "2774 Issue FCF rediscover "
4613 "mabilbox command failed, "
4614 "through to CVL event\n");
4615 spin_lock_irq(&phba->hbalock);
4616 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4617 spin_unlock_irq(&phba->hbalock);
4619 * Last resort will be re-try on the
4620 * the current registered FCF entry.
4622 lpfc_retry_pport_discovery(phba);
4625 * Reset FCF roundrobin bmask for new
4628 lpfc_sli4_clear_fcf_rr_bmask(phba);
4632 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4633 "0288 Unknown FCoE event type 0x%x event tag "
4634 "0x%x\n", event_type, acqe_fip->event_tag);
4640 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4641 * @phba: pointer to lpfc hba data structure.
4642 * @acqe_link: pointer to the async dcbx completion queue entry.
4644 * This routine is to handle the SLI4 asynchronous dcbx event.
4647 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4648 struct lpfc_acqe_dcbx *acqe_dcbx)
4650 phba->fc_eventTag = acqe_dcbx->event_tag;
4651 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4652 "0290 The SLI4 DCBX asynchronous event is not "
4657 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4658 * @phba: pointer to lpfc hba data structure.
4659 * @acqe_link: pointer to the async grp5 completion queue entry.
4661 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4662 * is an asynchronous notified of a logical link speed change. The Port
4663 * reports the logical link speed in units of 10Mbps.
4666 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4667 struct lpfc_acqe_grp5 *acqe_grp5)
4669 uint16_t prev_ll_spd;
4671 phba->fc_eventTag = acqe_grp5->event_tag;
4672 phba->fcoe_eventtag = acqe_grp5->event_tag;
4673 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4674 phba->sli4_hba.link_state.logical_speed =
4675 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4676 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4677 "2789 GRP5 Async Event: Updating logical link speed "
4678 "from %dMbps to %dMbps\n", prev_ll_spd,
4679 phba->sli4_hba.link_state.logical_speed);
4683 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4684 * @phba: pointer to lpfc hba data structure.
4686 * This routine is invoked by the worker thread to process all the pending
4687 * SLI4 asynchronous events.
4689 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4691 struct lpfc_cq_event *cq_event;
4693 /* First, declare the async event has been handled */
4694 spin_lock_irq(&phba->hbalock);
4695 phba->hba_flag &= ~ASYNC_EVENT;
4696 spin_unlock_irq(&phba->hbalock);
4697 /* Now, handle all the async events */
4698 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4699 /* Get the first event from the head of the event queue */
4700 spin_lock_irq(&phba->hbalock);
4701 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4702 cq_event, struct lpfc_cq_event, list);
4703 spin_unlock_irq(&phba->hbalock);
4704 /* Process the asynchronous event */
4705 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4706 case LPFC_TRAILER_CODE_LINK:
4707 lpfc_sli4_async_link_evt(phba,
4708 &cq_event->cqe.acqe_link);
4710 case LPFC_TRAILER_CODE_FCOE:
4711 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4713 case LPFC_TRAILER_CODE_DCBX:
4714 lpfc_sli4_async_dcbx_evt(phba,
4715 &cq_event->cqe.acqe_dcbx);
4717 case LPFC_TRAILER_CODE_GRP5:
4718 lpfc_sli4_async_grp5_evt(phba,
4719 &cq_event->cqe.acqe_grp5);
4721 case LPFC_TRAILER_CODE_FC:
4722 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4724 case LPFC_TRAILER_CODE_SLI:
4725 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4728 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4729 "1804 Invalid asynchrous event code: "
4730 "x%x\n", bf_get(lpfc_trailer_code,
4731 &cq_event->cqe.mcqe_cmpl));
4734 /* Free the completion event processed to the free pool */
4735 lpfc_sli4_cq_event_release(phba, cq_event);
4740 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4741 * @phba: pointer to lpfc hba data structure.
4743 * This routine is invoked by the worker thread to process FCF table
4744 * rediscovery pending completion event.
4746 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4750 spin_lock_irq(&phba->hbalock);
4751 /* Clear FCF rediscovery timeout event */
4752 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4753 /* Clear driver fast failover FCF record flag */
4754 phba->fcf.failover_rec.flag = 0;
4755 /* Set state for FCF fast failover */
4756 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4757 spin_unlock_irq(&phba->hbalock);
4759 /* Scan FCF table from the first entry to re-discover SAN */
4760 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4761 "2777 Start post-quiescent FCF table scan\n");
4762 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4764 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4765 "2747 Issue FCF scan read FCF mailbox "
4766 "command failed 0x%x\n", rc);
4770 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4771 * @phba: pointer to lpfc hba data structure.
4772 * @dev_grp: The HBA PCI-Device group number.
4774 * This routine is invoked to set up the per HBA PCI-Device group function
4775 * API jump table entries.
4777 * Return: 0 if success, otherwise -ENODEV
4780 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4784 /* Set up lpfc PCI-device group */
4785 phba->pci_dev_grp = dev_grp;
4787 /* The LPFC_PCI_DEV_OC uses SLI4 */
4788 if (dev_grp == LPFC_PCI_DEV_OC)
4789 phba->sli_rev = LPFC_SLI_REV4;
4791 /* Set up device INIT API function jump table */
4792 rc = lpfc_init_api_table_setup(phba, dev_grp);
4795 /* Set up SCSI API function jump table */
4796 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4799 /* Set up SLI API function jump table */
4800 rc = lpfc_sli_api_table_setup(phba, dev_grp);
4803 /* Set up MBOX API function jump table */
4804 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4812 * lpfc_log_intr_mode - Log the active interrupt mode
4813 * @phba: pointer to lpfc hba data structure.
4814 * @intr_mode: active interrupt mode adopted.
4816 * This routine it invoked to log the currently used active interrupt mode
4819 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4821 switch (intr_mode) {
4823 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4824 "0470 Enable INTx interrupt mode.\n");
4827 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4828 "0481 Enabled MSI interrupt mode.\n");
4831 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4832 "0480 Enabled MSI-X interrupt mode.\n");
4835 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4836 "0482 Illegal interrupt mode.\n");
4843 * lpfc_enable_pci_dev - Enable a generic PCI device.
4844 * @phba: pointer to lpfc hba data structure.
4846 * This routine is invoked to enable the PCI device that is common to all
4851 * other values - error
4854 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4856 struct pci_dev *pdev;
4858 /* Obtain PCI device reference */
4862 pdev = phba->pcidev;
4863 /* Enable PCI device */
4864 if (pci_enable_device_mem(pdev))
4866 /* Request PCI resource for the device */
4867 if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
4868 goto out_disable_device;
4869 /* Set up device as PCI master and save state for EEH */
4870 pci_set_master(pdev);
4871 pci_try_set_mwi(pdev);
4872 pci_save_state(pdev);
4874 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4875 if (pci_is_pcie(pdev))
4876 pdev->needs_freset = 1;
4881 pci_disable_device(pdev);
4883 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4884 "1401 Failed to enable pci device\n");
4889 * lpfc_disable_pci_dev - Disable a generic PCI device.
4890 * @phba: pointer to lpfc hba data structure.
4892 * This routine is invoked to disable the PCI device that is common to all
4896 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4898 struct pci_dev *pdev;
4900 /* Obtain PCI device reference */
4904 pdev = phba->pcidev;
4905 /* Release PCI resource and disable PCI device */
4906 pci_release_mem_regions(pdev);
4907 pci_disable_device(pdev);
4913 * lpfc_reset_hba - Reset a hba
4914 * @phba: pointer to lpfc hba data structure.
4916 * This routine is invoked to reset a hba device. It brings the HBA
4917 * offline, performs a board restart, and then brings the board back
4918 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4919 * on outstanding mailbox commands.
4922 lpfc_reset_hba(struct lpfc_hba *phba)
4924 /* If resets are disabled then set error state and return. */
4925 if (!phba->cfg_enable_hba_reset) {
4926 phba->link_state = LPFC_HBA_ERROR;
4929 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
4930 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4932 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
4934 lpfc_sli_brdrestart(phba);
4936 lpfc_unblock_mgmt_io(phba);
4940 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4941 * @phba: pointer to lpfc hba data structure.
4943 * This function enables the PCI SR-IOV virtual functions to a physical
4944 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4945 * enable the number of virtual functions to the physical function. As
4946 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4947 * API call does not considered as an error condition for most of the device.
4950 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4952 struct pci_dev *pdev = phba->pcidev;
4956 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4960 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4965 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4966 * @phba: pointer to lpfc hba data structure.
4967 * @nr_vfn: number of virtual functions to be enabled.
4969 * This function enables the PCI SR-IOV virtual functions to a physical
4970 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4971 * enable the number of virtual functions to the physical function. As
4972 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4973 * API call does not considered as an error condition for most of the device.
4976 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4978 struct pci_dev *pdev = phba->pcidev;
4979 uint16_t max_nr_vfn;
4982 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4983 if (nr_vfn > max_nr_vfn) {
4984 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4985 "3057 Requested vfs (%d) greater than "
4986 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4990 rc = pci_enable_sriov(pdev, nr_vfn);
4992 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4993 "2806 Failed to enable sriov on this device "
4994 "with vfn number nr_vf:%d, rc:%d\n",
4997 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4998 "2807 Successful enable sriov on this device "
4999 "with vfn number nr_vf:%d\n", nr_vfn);
5004 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
5005 * @phba: pointer to lpfc hba data structure.
5007 * This routine is invoked to set up the driver internal resources specific to
5008 * support the SLI-3 HBA device it attached to.
5012 * other values - error
5015 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
5017 struct lpfc_sli *psli;
5021 * Initialize timers used by driver
5024 /* Heartbeat timer */
5025 init_timer(&phba->hb_tmofunc);
5026 phba->hb_tmofunc.function = lpfc_hb_timeout;
5027 phba->hb_tmofunc.data = (unsigned long)phba;
5030 /* MBOX heartbeat timer */
5031 init_timer(&psli->mbox_tmo);
5032 psli->mbox_tmo.function = lpfc_mbox_timeout;
5033 psli->mbox_tmo.data = (unsigned long) phba;
5034 /* FCP polling mode timer */
5035 init_timer(&phba->fcp_poll_timer);
5036 phba->fcp_poll_timer.function = lpfc_poll_timeout;
5037 phba->fcp_poll_timer.data = (unsigned long) phba;
5038 /* Fabric block timer */
5039 init_timer(&phba->fabric_block_timer);
5040 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
5041 phba->fabric_block_timer.data = (unsigned long) phba;
5042 /* EA polling mode timer */
5043 init_timer(&phba->eratt_poll);
5044 phba->eratt_poll.function = lpfc_poll_eratt;
5045 phba->eratt_poll.data = (unsigned long) phba;
5047 /* Host attention work mask setup */
5048 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
5049 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
5051 /* Get all the module params for configuring this host */
5052 lpfc_get_cfgparam(phba);
5053 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
5054 phba->menlo_flag |= HBA_MENLO_SUPPORT;
5055 /* check for menlo minimum sg count */
5056 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
5057 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
5060 if (!phba->sli.ring)
5061 phba->sli.ring = kzalloc(LPFC_SLI3_MAX_RING *
5062 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5063 if (!phba->sli.ring)
5067 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5068 * used to create the sg_dma_buf_pool must be dynamically calculated.
5071 /* Initialize the host templates the configured values. */
5072 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5073 lpfc_template_s3.sg_tablesize = phba->cfg_sg_seg_cnt;
5075 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5076 if (phba->cfg_enable_bg) {
5078 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5079 * the FCP rsp, and a BDE for each. Sice we have no control
5080 * over how many protection data segments the SCSI Layer
5081 * will hand us (ie: there could be one for every block
5082 * in the IO), we just allocate enough BDEs to accomidate
5083 * our max amount and we need to limit lpfc_sg_seg_cnt to
5084 * minimize the risk of running out.
5086 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5087 sizeof(struct fcp_rsp) +
5088 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5090 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5091 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5093 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5094 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5097 * The scsi_buf for a regular I/O will hold the FCP cmnd,
5098 * the FCP rsp, a BDE for each, and a BDE for up to
5099 * cfg_sg_seg_cnt data segments.
5101 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5102 sizeof(struct fcp_rsp) +
5103 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5105 /* Total BDEs in BPL for scsi_sg_list */
5106 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5109 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5110 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5111 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5112 phba->cfg_total_seg_cnt);
5114 phba->max_vpi = LPFC_MAX_VPI;
5115 /* This will be set to correct value after config_port mbox */
5116 phba->max_vports = 0;
5119 * Initialize the SLI Layer to run with lpfc HBAs.
5121 lpfc_sli_setup(phba);
5122 lpfc_sli_queue_setup(phba);
5124 /* Allocate device driver memory */
5125 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5129 * Enable sr-iov virtual functions if supported and configured
5130 * through the module parameter.
5132 if (phba->cfg_sriov_nr_virtfn > 0) {
5133 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5134 phba->cfg_sriov_nr_virtfn);
5136 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5137 "2808 Requested number of SR-IOV "
5138 "virtual functions (%d) is not "
5140 phba->cfg_sriov_nr_virtfn);
5141 phba->cfg_sriov_nr_virtfn = 0;
5149 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5150 * @phba: pointer to lpfc hba data structure.
5152 * This routine is invoked to unset the driver internal resources set up
5153 * specific for supporting the SLI-3 HBA device it attached to.
5156 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5158 /* Free device driver memory allocated */
5159 lpfc_mem_free_all(phba);
5165 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5166 * @phba: pointer to lpfc hba data structure.
5168 * This routine is invoked to set up the driver internal resources specific to
5169 * support the SLI-4 HBA device it attached to.
5173 * other values - error
5176 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5178 struct lpfc_vector_map_info *cpup;
5179 struct lpfc_sli *psli;
5180 LPFC_MBOXQ_t *mboxq;
5181 int rc, i, hbq_count, max_buf_size;
5182 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5183 struct lpfc_mqe *mqe;
5185 int fof_vectors = 0;
5187 /* Get all the module params for configuring this host */
5188 lpfc_get_cfgparam(phba);
5190 /* Before proceed, wait for POST done and device ready */
5191 rc = lpfc_sli4_post_status_check(phba);
5196 * Initialize timers used by driver
5199 /* Heartbeat timer */
5200 init_timer(&phba->hb_tmofunc);
5201 phba->hb_tmofunc.function = lpfc_hb_timeout;
5202 phba->hb_tmofunc.data = (unsigned long)phba;
5203 init_timer(&phba->rrq_tmr);
5204 phba->rrq_tmr.function = lpfc_rrq_timeout;
5205 phba->rrq_tmr.data = (unsigned long)phba;
5208 /* MBOX heartbeat timer */
5209 init_timer(&psli->mbox_tmo);
5210 psli->mbox_tmo.function = lpfc_mbox_timeout;
5211 psli->mbox_tmo.data = (unsigned long) phba;
5212 /* Fabric block timer */
5213 init_timer(&phba->fabric_block_timer);
5214 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
5215 phba->fabric_block_timer.data = (unsigned long) phba;
5216 /* EA polling mode timer */
5217 init_timer(&phba->eratt_poll);
5218 phba->eratt_poll.function = lpfc_poll_eratt;
5219 phba->eratt_poll.data = (unsigned long) phba;
5220 /* FCF rediscover timer */
5221 init_timer(&phba->fcf.redisc_wait);
5222 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
5223 phba->fcf.redisc_wait.data = (unsigned long)phba;
5226 * Control structure for handling external multi-buffer mailbox
5227 * command pass-through.
5229 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5230 sizeof(struct lpfc_mbox_ext_buf_ctx));
5231 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5233 phba->max_vpi = LPFC_MAX_VPI;
5235 /* This will be set to correct value after the read_config mbox */
5236 phba->max_vports = 0;
5238 /* Program the default value of vlan_id and fc_map */
5239 phba->valid_vlan = 0;
5240 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5241 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5242 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5245 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5246 * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
5248 if (!phba->sli.ring)
5249 phba->sli.ring = kzalloc(
5250 (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
5251 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5252 if (!phba->sli.ring)
5256 * It doesn't matter what family our adapter is in, we are
5257 * limited to 2 Pages, 512 SGEs, for our SGL.
5258 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5260 max_buf_size = (2 * SLI4_PAGE_SIZE);
5261 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5262 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5265 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5266 * used to create the sg_dma_buf_pool must be dynamically calculated.
5269 if (phba->cfg_enable_bg) {
5271 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5272 * the FCP rsp, and a SGE for each. Sice we have no control
5273 * over how many protection data segments the SCSI Layer
5274 * will hand us (ie: there could be one for every block
5275 * in the IO), we just allocate enough SGEs to accomidate
5276 * our max amount and we need to limit lpfc_sg_seg_cnt to
5277 * minimize the risk of running out.
5279 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5280 sizeof(struct fcp_rsp) + max_buf_size;
5282 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5283 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5285 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5286 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5289 * The scsi_buf for a regular I/O will hold the FCP cmnd,
5290 * the FCP rsp, a SGE for each, and a SGE for up to
5291 * cfg_sg_seg_cnt data segments.
5293 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5294 sizeof(struct fcp_rsp) +
5295 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
5297 /* Total SGEs for scsi_sg_list */
5298 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5300 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
5301 * to post 1 page for the SGL.
5305 /* Initialize the host templates with the updated values. */
5306 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5307 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5309 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ)
5310 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5312 phba->cfg_sg_dma_buf_size =
5313 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5315 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5316 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5317 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5318 phba->cfg_total_seg_cnt);
5320 /* Initialize buffer queue management fields */
5321 hbq_count = lpfc_sli_hbq_count();
5322 for (i = 0; i < hbq_count; ++i)
5323 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5324 INIT_LIST_HEAD(&phba->rb_pend_list);
5325 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5326 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5329 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5331 /* Initialize the Abort scsi buffer list used by driver */
5332 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5333 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5334 /* This abort list used by worker thread */
5335 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
5338 * Initialize driver internal slow-path work queues
5341 /* Driver internel slow-path CQ Event pool */
5342 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5343 /* Response IOCB work queue list */
5344 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5345 /* Asynchronous event CQ Event work queue list */
5346 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5347 /* Fast-path XRI aborted CQ Event work queue list */
5348 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5349 /* Slow-path XRI aborted CQ Event work queue list */
5350 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5351 /* Receive queue CQ Event work queue list */
5352 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5354 /* Initialize extent block lists. */
5355 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5356 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5357 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5358 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5360 /* initialize optic_state to 0xFF */
5361 phba->sli4_hba.lnk_info.optic_state = 0xff;
5363 /* Initialize the driver internal SLI layer lists. */
5364 lpfc_sli_setup(phba);
5365 lpfc_sli_queue_setup(phba);
5367 /* Allocate device driver memory */
5368 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5372 /* IF Type 2 ports get initialized now. */
5373 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5374 LPFC_SLI_INTF_IF_TYPE_2) {
5375 rc = lpfc_pci_function_reset(phba);
5378 phba->temp_sensor_support = 1;
5381 /* Create the bootstrap mailbox command */
5382 rc = lpfc_create_bootstrap_mbox(phba);
5386 /* Set up the host's endian order with the device. */
5387 rc = lpfc_setup_endian_order(phba);
5389 goto out_free_bsmbx;
5391 /* Set up the hba's configuration parameters. */
5392 rc = lpfc_sli4_read_config(phba);
5394 goto out_free_bsmbx;
5395 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
5397 goto out_free_bsmbx;
5399 /* IF Type 0 ports get initialized now. */
5400 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5401 LPFC_SLI_INTF_IF_TYPE_0) {
5402 rc = lpfc_pci_function_reset(phba);
5404 goto out_free_bsmbx;
5407 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5411 goto out_free_bsmbx;
5414 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5415 lpfc_supported_pages(mboxq);
5416 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5418 mqe = &mboxq->u.mqe;
5419 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5420 LPFC_MAX_SUPPORTED_PAGES);
5421 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5422 switch (pn_page[i]) {
5423 case LPFC_SLI4_PARAMETERS:
5424 phba->sli4_hba.pc_sli4_params.supported = 1;
5430 /* Read the port's SLI4 Parameters capabilities if supported. */
5431 if (phba->sli4_hba.pc_sli4_params.supported)
5432 rc = lpfc_pc_sli4_params_get(phba, mboxq);
5434 mempool_free(mboxq, phba->mbox_mem_pool);
5436 goto out_free_bsmbx;
5441 * Get sli4 parameters that override parameters from Port capabilities.
5442 * If this call fails, it isn't critical unless the SLI4 parameters come
5445 rc = lpfc_get_sli4_parameters(phba, mboxq);
5447 if (phba->sli4_hba.extents_in_use &&
5448 phba->sli4_hba.rpi_hdrs_in_use) {
5449 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5450 "2999 Unsupported SLI4 Parameters "
5451 "Extents and RPI headers enabled.\n");
5452 goto out_free_bsmbx;
5455 mempool_free(mboxq, phba->mbox_mem_pool);
5457 /* Verify OAS is supported */
5458 lpfc_sli4_oas_verify(phba);
5462 /* Verify all the SLI4 queues */
5463 rc = lpfc_sli4_queue_verify(phba);
5465 goto out_free_bsmbx;
5467 /* Create driver internal CQE event pool */
5468 rc = lpfc_sli4_cq_event_pool_create(phba);
5470 goto out_free_bsmbx;
5472 /* Initialize sgl lists per host */
5473 lpfc_init_sgl_list(phba);
5475 /* Allocate and initialize active sgl array */
5476 rc = lpfc_init_active_sgl_array(phba);
5478 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5479 "1430 Failed to initialize sgl list.\n");
5480 goto out_destroy_cq_event_pool;
5482 rc = lpfc_sli4_init_rpi_hdrs(phba);
5484 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5485 "1432 Failed to initialize rpi headers.\n");
5486 goto out_free_active_sgl;
5489 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5490 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5491 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5493 if (!phba->fcf.fcf_rr_bmask) {
5494 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5495 "2759 Failed allocate memory for FCF round "
5496 "robin failover bmask\n");
5498 goto out_remove_rpi_hdrs;
5501 phba->sli4_hba.fcp_eq_hdl =
5502 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5503 (fof_vectors + phba->cfg_fcp_io_channel)),
5505 if (!phba->sli4_hba.fcp_eq_hdl) {
5506 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5507 "2572 Failed allocate memory for "
5508 "fast-path per-EQ handle array\n");
5510 goto out_free_fcf_rr_bmask;
5513 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5515 phba->cfg_fcp_io_channel)), GFP_KERNEL);
5516 if (!phba->sli4_hba.msix_entries) {
5517 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5518 "2573 Failed allocate memory for msi-x "
5519 "interrupt vector entries\n");
5521 goto out_free_fcp_eq_hdl;
5524 phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5525 phba->sli4_hba.num_present_cpu),
5527 if (!phba->sli4_hba.cpu_map) {
5528 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5529 "3327 Failed allocate memory for msi-x "
5530 "interrupt vector mapping\n");
5534 if (lpfc_used_cpu == NULL) {
5535 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
5537 if (!lpfc_used_cpu) {
5538 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5539 "3335 Failed allocate memory for msi-x "
5540 "interrupt vector mapping\n");
5541 kfree(phba->sli4_hba.cpu_map);
5545 for (i = 0; i < lpfc_present_cpu; i++)
5546 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
5549 /* Initialize io channels for round robin */
5550 cpup = phba->sli4_hba.cpu_map;
5552 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5553 cpup->channel_id = rc;
5555 if (rc >= phba->cfg_fcp_io_channel)
5560 * Enable sr-iov virtual functions if supported and configured
5561 * through the module parameter.
5563 if (phba->cfg_sriov_nr_virtfn > 0) {
5564 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5565 phba->cfg_sriov_nr_virtfn);
5567 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5568 "3020 Requested number of SR-IOV "
5569 "virtual functions (%d) is not "
5571 phba->cfg_sriov_nr_virtfn);
5572 phba->cfg_sriov_nr_virtfn = 0;
5579 kfree(phba->sli4_hba.msix_entries);
5580 out_free_fcp_eq_hdl:
5581 kfree(phba->sli4_hba.fcp_eq_hdl);
5582 out_free_fcf_rr_bmask:
5583 kfree(phba->fcf.fcf_rr_bmask);
5584 out_remove_rpi_hdrs:
5585 lpfc_sli4_remove_rpi_hdrs(phba);
5586 out_free_active_sgl:
5587 lpfc_free_active_sgl(phba);
5588 out_destroy_cq_event_pool:
5589 lpfc_sli4_cq_event_pool_destroy(phba);
5591 lpfc_destroy_bootstrap_mbox(phba);
5593 lpfc_mem_free(phba);
5598 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5599 * @phba: pointer to lpfc hba data structure.
5601 * This routine is invoked to unset the driver internal resources set up
5602 * specific for supporting the SLI-4 HBA device it attached to.
5605 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5607 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5609 /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5610 kfree(phba->sli4_hba.cpu_map);
5611 phba->sli4_hba.num_present_cpu = 0;
5612 phba->sli4_hba.num_online_cpu = 0;
5613 phba->sli4_hba.curr_disp_cpu = 0;
5615 /* Free memory allocated for msi-x interrupt vector entries */
5616 kfree(phba->sli4_hba.msix_entries);
5618 /* Free memory allocated for fast-path work queue handles */
5619 kfree(phba->sli4_hba.fcp_eq_hdl);
5621 /* Free the allocated rpi headers. */
5622 lpfc_sli4_remove_rpi_hdrs(phba);
5623 lpfc_sli4_remove_rpis(phba);
5625 /* Free eligible FCF index bmask */
5626 kfree(phba->fcf.fcf_rr_bmask);
5628 /* Free the ELS sgl list */
5629 lpfc_free_active_sgl(phba);
5630 lpfc_free_els_sgl_list(phba);
5632 /* Free the completion queue EQ event pool */
5633 lpfc_sli4_cq_event_release_all(phba);
5634 lpfc_sli4_cq_event_pool_destroy(phba);
5636 /* Release resource identifiers. */
5637 lpfc_sli4_dealloc_resource_identifiers(phba);
5639 /* Free the bsmbx region. */
5640 lpfc_destroy_bootstrap_mbox(phba);
5642 /* Free the SLI Layer memory with SLI4 HBAs */
5643 lpfc_mem_free_all(phba);
5645 /* Free the current connect table */
5646 list_for_each_entry_safe(conn_entry, next_conn_entry,
5647 &phba->fcf_conn_rec_list, list) {
5648 list_del_init(&conn_entry->list);
5656 * lpfc_init_api_table_setup - Set up init api function jump table
5657 * @phba: The hba struct for which this call is being executed.
5658 * @dev_grp: The HBA PCI-Device group number.
5660 * This routine sets up the device INIT interface API function jump table
5663 * Returns: 0 - success, -ENODEV - failure.
5666 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5668 phba->lpfc_hba_init_link = lpfc_hba_init_link;
5669 phba->lpfc_hba_down_link = lpfc_hba_down_link;
5670 phba->lpfc_selective_reset = lpfc_selective_reset;
5672 case LPFC_PCI_DEV_LP:
5673 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5674 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5675 phba->lpfc_stop_port = lpfc_stop_port_s3;
5677 case LPFC_PCI_DEV_OC:
5678 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5679 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5680 phba->lpfc_stop_port = lpfc_stop_port_s4;
5683 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5684 "1431 Invalid HBA PCI-device group: 0x%x\n",
5693 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5694 * @phba: pointer to lpfc hba data structure.
5696 * This routine is invoked to set up the driver internal resources before the
5697 * device specific resource setup to support the HBA device it attached to.
5701 * other values - error
5704 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5707 * Driver resources common to all SLI revisions
5709 atomic_set(&phba->fast_event_count, 0);
5710 spin_lock_init(&phba->hbalock);
5712 /* Initialize ndlp management spinlock */
5713 spin_lock_init(&phba->ndlp_lock);
5715 INIT_LIST_HEAD(&phba->port_list);
5716 INIT_LIST_HEAD(&phba->work_list);
5717 init_waitqueue_head(&phba->wait_4_mlo_m_q);
5719 /* Initialize the wait queue head for the kernel thread */
5720 init_waitqueue_head(&phba->work_waitq);
5722 /* Initialize the scsi buffer list used by driver for scsi IO */
5723 spin_lock_init(&phba->scsi_buf_list_get_lock);
5724 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5725 spin_lock_init(&phba->scsi_buf_list_put_lock);
5726 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5728 /* Initialize the fabric iocb list */
5729 INIT_LIST_HEAD(&phba->fabric_iocb_list);
5731 /* Initialize list to save ELS buffers */
5732 INIT_LIST_HEAD(&phba->elsbuf);
5734 /* Initialize FCF connection rec list */
5735 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5737 /* Initialize OAS configuration list */
5738 spin_lock_init(&phba->devicelock);
5739 INIT_LIST_HEAD(&phba->luns);
5745 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5746 * @phba: pointer to lpfc hba data structure.
5748 * This routine is invoked to set up the driver internal resources after the
5749 * device specific resource setup to support the HBA device it attached to.
5753 * other values - error
5756 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5760 /* Startup the kernel thread for this host adapter. */
5761 phba->worker_thread = kthread_run(lpfc_do_work, phba,
5762 "lpfc_worker_%d", phba->brd_no);
5763 if (IS_ERR(phba->worker_thread)) {
5764 error = PTR_ERR(phba->worker_thread);
5772 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5773 * @phba: pointer to lpfc hba data structure.
5775 * This routine is invoked to unset the driver internal resources set up after
5776 * the device specific resource setup for supporting the HBA device it
5780 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5782 /* Stop kernel worker thread */
5783 kthread_stop(phba->worker_thread);
5787 * lpfc_free_iocb_list - Free iocb list.
5788 * @phba: pointer to lpfc hba data structure.
5790 * This routine is invoked to free the driver's IOCB list and memory.
5793 lpfc_free_iocb_list(struct lpfc_hba *phba)
5795 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5797 spin_lock_irq(&phba->hbalock);
5798 list_for_each_entry_safe(iocbq_entry, iocbq_next,
5799 &phba->lpfc_iocb_list, list) {
5800 list_del(&iocbq_entry->list);
5802 phba->total_iocbq_bufs--;
5804 spin_unlock_irq(&phba->hbalock);
5810 * lpfc_init_iocb_list - Allocate and initialize iocb list.
5811 * @phba: pointer to lpfc hba data structure.
5813 * This routine is invoked to allocate and initizlize the driver's IOCB
5814 * list and set up the IOCB tag array accordingly.
5818 * other values - error
5821 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5823 struct lpfc_iocbq *iocbq_entry = NULL;
5827 /* Initialize and populate the iocb list per host. */
5828 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5829 for (i = 0; i < iocb_count; i++) {
5830 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5831 if (iocbq_entry == NULL) {
5832 printk(KERN_ERR "%s: only allocated %d iocbs of "
5833 "expected %d count. Unloading driver.\n",
5834 __func__, i, LPFC_IOCB_LIST_CNT);
5835 goto out_free_iocbq;
5838 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5841 printk(KERN_ERR "%s: failed to allocate IOTAG. "
5842 "Unloading driver.\n", __func__);
5843 goto out_free_iocbq;
5845 iocbq_entry->sli4_lxritag = NO_XRI;
5846 iocbq_entry->sli4_xritag = NO_XRI;
5848 spin_lock_irq(&phba->hbalock);
5849 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5850 phba->total_iocbq_bufs++;
5851 spin_unlock_irq(&phba->hbalock);
5857 lpfc_free_iocb_list(phba);
5863 * lpfc_free_sgl_list - Free a given sgl list.
5864 * @phba: pointer to lpfc hba data structure.
5865 * @sglq_list: pointer to the head of sgl list.
5867 * This routine is invoked to free a give sgl list and memory.
5870 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5872 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5874 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5875 list_del(&sglq_entry->list);
5876 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5882 * lpfc_free_els_sgl_list - Free els sgl list.
5883 * @phba: pointer to lpfc hba data structure.
5885 * This routine is invoked to free the driver's els sgl list and memory.
5888 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5890 LIST_HEAD(sglq_list);
5891 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
5893 /* Retrieve all els sgls from driver list */
5894 spin_lock_irq(&phba->hbalock);
5895 spin_lock(&pring->ring_lock);
5896 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5897 spin_unlock(&pring->ring_lock);
5898 spin_unlock_irq(&phba->hbalock);
5900 /* Now free the sgl list */
5901 lpfc_free_sgl_list(phba, &sglq_list);
5905 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5906 * @phba: pointer to lpfc hba data structure.
5908 * This routine is invoked to allocate the driver's active sgl memory.
5909 * This array will hold the sglq_entry's for active IOs.
5912 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5915 size = sizeof(struct lpfc_sglq *);
5916 size *= phba->sli4_hba.max_cfg_param.max_xri;
5918 phba->sli4_hba.lpfc_sglq_active_list =
5919 kzalloc(size, GFP_KERNEL);
5920 if (!phba->sli4_hba.lpfc_sglq_active_list)
5926 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5927 * @phba: pointer to lpfc hba data structure.
5929 * This routine is invoked to walk through the array of active sglq entries
5930 * and free all of the resources.
5931 * This is just a place holder for now.
5934 lpfc_free_active_sgl(struct lpfc_hba *phba)
5936 kfree(phba->sli4_hba.lpfc_sglq_active_list);
5940 * lpfc_init_sgl_list - Allocate and initialize sgl list.
5941 * @phba: pointer to lpfc hba data structure.
5943 * This routine is invoked to allocate and initizlize the driver's sgl
5944 * list and set up the sgl xritag tag array accordingly.
5948 lpfc_init_sgl_list(struct lpfc_hba *phba)
5950 /* Initialize and populate the sglq list per host/VF. */
5951 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5952 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5954 /* els xri-sgl book keeping */
5955 phba->sli4_hba.els_xri_cnt = 0;
5957 /* scsi xri-buffer book keeping */
5958 phba->sli4_hba.scsi_xri_cnt = 0;
5962 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5963 * @phba: pointer to lpfc hba data structure.
5965 * This routine is invoked to post rpi header templates to the
5966 * port for those SLI4 ports that do not support extents. This routine
5967 * posts a PAGE_SIZE memory region to the port to hold up to
5968 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
5969 * and should be called only when interrupts are disabled.
5973 * -ERROR - otherwise.
5976 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5979 struct lpfc_rpi_hdr *rpi_hdr;
5981 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5982 if (!phba->sli4_hba.rpi_hdrs_in_use)
5984 if (phba->sli4_hba.extents_in_use)
5987 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5989 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5990 "0391 Error during rpi post operation\n");
5991 lpfc_sli4_remove_rpis(phba);
5999 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
6000 * @phba: pointer to lpfc hba data structure.
6002 * This routine is invoked to allocate a single 4KB memory region to
6003 * support rpis and stores them in the phba. This single region
6004 * provides support for up to 64 rpis. The region is used globally
6008 * A valid rpi hdr on success.
6009 * A NULL pointer on any failure.
6011 struct lpfc_rpi_hdr *
6012 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
6014 uint16_t rpi_limit, curr_rpi_range;
6015 struct lpfc_dmabuf *dmabuf;
6016 struct lpfc_rpi_hdr *rpi_hdr;
6020 * If the SLI4 port supports extents, posting the rpi header isn't
6021 * required. Set the expected maximum count and let the actual value
6022 * get set when extents are fully allocated.
6024 if (!phba->sli4_hba.rpi_hdrs_in_use)
6026 if (phba->sli4_hba.extents_in_use)
6029 /* The limit on the logical index is just the max_rpi count. */
6030 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
6031 phba->sli4_hba.max_cfg_param.max_rpi - 1;
6033 spin_lock_irq(&phba->hbalock);
6035 * Establish the starting RPI in this header block. The starting
6036 * rpi is normalized to a zero base because the physical rpi is
6039 curr_rpi_range = phba->sli4_hba.next_rpi;
6040 spin_unlock_irq(&phba->hbalock);
6043 * The port has a limited number of rpis. The increment here
6044 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
6045 * and to allow the full max_rpi range per port.
6047 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
6048 rpi_count = rpi_limit - curr_rpi_range;
6050 rpi_count = LPFC_RPI_HDR_COUNT;
6055 * First allocate the protocol header region for the port. The
6056 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
6058 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6062 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
6063 LPFC_HDR_TEMPLATE_SIZE,
6064 &dmabuf->phys, GFP_KERNEL);
6065 if (!dmabuf->virt) {
6067 goto err_free_dmabuf;
6070 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
6072 goto err_free_coherent;
6075 /* Save the rpi header data for cleanup later. */
6076 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
6078 goto err_free_coherent;
6080 rpi_hdr->dmabuf = dmabuf;
6081 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6082 rpi_hdr->page_count = 1;
6083 spin_lock_irq(&phba->hbalock);
6085 /* The rpi_hdr stores the logical index only. */
6086 rpi_hdr->start_rpi = curr_rpi_range;
6087 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6090 * The next_rpi stores the next logical module-64 rpi value used
6091 * to post physical rpis in subsequent rpi postings.
6093 phba->sli4_hba.next_rpi += rpi_count;
6094 spin_unlock_irq(&phba->hbalock);
6098 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6099 dmabuf->virt, dmabuf->phys);
6106 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6107 * @phba: pointer to lpfc hba data structure.
6109 * This routine is invoked to remove all memory resources allocated
6110 * to support rpis for SLI4 ports not supporting extents. This routine
6111 * presumes the caller has released all rpis consumed by fabric or port
6112 * logins and is prepared to have the header pages removed.
6115 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6117 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6119 if (!phba->sli4_hba.rpi_hdrs_in_use)
6122 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6123 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6124 list_del(&rpi_hdr->list);
6125 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6126 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6127 kfree(rpi_hdr->dmabuf);
6131 /* There are no rpis available to the port now. */
6132 phba->sli4_hba.next_rpi = 0;
6136 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6137 * @pdev: pointer to pci device data structure.
6139 * This routine is invoked to allocate the driver hba data structure for an
6140 * HBA device. If the allocation is successful, the phba reference to the
6141 * PCI device data structure is set.
6144 * pointer to @phba - successful
6147 static struct lpfc_hba *
6148 lpfc_hba_alloc(struct pci_dev *pdev)
6150 struct lpfc_hba *phba;
6152 /* Allocate memory for HBA structure */
6153 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6155 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6159 /* Set reference to PCI device in HBA structure */
6160 phba->pcidev = pdev;
6162 /* Assign an unused board number */
6163 phba->brd_no = lpfc_get_instance();
6164 if (phba->brd_no < 0) {
6168 phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
6170 spin_lock_init(&phba->ct_ev_lock);
6171 INIT_LIST_HEAD(&phba->ct_ev_waiters);
6177 * lpfc_hba_free - Free driver hba data structure with a device.
6178 * @phba: pointer to lpfc hba data structure.
6180 * This routine is invoked to free the driver hba data structure with an
6184 lpfc_hba_free(struct lpfc_hba *phba)
6186 /* Release the driver assigned board number */
6187 idr_remove(&lpfc_hba_index, phba->brd_no);
6189 /* Free memory allocated with sli rings */
6190 kfree(phba->sli.ring);
6191 phba->sli.ring = NULL;
6198 * lpfc_create_shost - Create hba physical port with associated scsi host.
6199 * @phba: pointer to lpfc hba data structure.
6201 * This routine is invoked to create HBA physical port and associate a SCSI
6206 * other values - error
6209 lpfc_create_shost(struct lpfc_hba *phba)
6211 struct lpfc_vport *vport;
6212 struct Scsi_Host *shost;
6214 /* Initialize HBA FC structure */
6215 phba->fc_edtov = FF_DEF_EDTOV;
6216 phba->fc_ratov = FF_DEF_RATOV;
6217 phba->fc_altov = FF_DEF_ALTOV;
6218 phba->fc_arbtov = FF_DEF_ARBTOV;
6220 atomic_set(&phba->sdev_cnt, 0);
6221 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6225 shost = lpfc_shost_from_vport(vport);
6226 phba->pport = vport;
6227 lpfc_debugfs_initialize(vport);
6228 /* Put reference to SCSI host to driver's device private data */
6229 pci_set_drvdata(phba->pcidev, shost);
6232 * At this point we are fully registered with PSA. In addition,
6233 * any initial discovery should be completed.
6235 vport->load_flag |= FC_ALLOW_FDMI;
6236 if (phba->cfg_enable_SmartSAN ||
6237 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
6239 /* Setup appropriate attribute masks */
6240 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
6241 if (phba->cfg_enable_SmartSAN)
6242 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
6244 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
6250 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6251 * @phba: pointer to lpfc hba data structure.
6253 * This routine is invoked to destroy HBA physical port and the associated
6257 lpfc_destroy_shost(struct lpfc_hba *phba)
6259 struct lpfc_vport *vport = phba->pport;
6261 /* Destroy physical port that associated with the SCSI host */
6262 destroy_port(vport);
6268 * lpfc_setup_bg - Setup Block guard structures and debug areas.
6269 * @phba: pointer to lpfc hba data structure.
6270 * @shost: the shost to be used to detect Block guard settings.
6272 * This routine sets up the local Block guard protocol settings for @shost.
6273 * This routine also allocates memory for debugging bg buffers.
6276 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6282 if (lpfc_prot_mask && lpfc_prot_guard) {
6283 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6284 "1478 Registering BlockGuard with the "
6287 old_mask = lpfc_prot_mask;
6288 old_guard = lpfc_prot_guard;
6290 /* Only allow supported values */
6291 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6292 SHOST_DIX_TYPE0_PROTECTION |
6293 SHOST_DIX_TYPE1_PROTECTION);
6294 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
6296 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6297 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6298 lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6300 if (lpfc_prot_mask && lpfc_prot_guard) {
6301 if ((old_mask != lpfc_prot_mask) ||
6302 (old_guard != lpfc_prot_guard))
6303 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6304 "1475 Registering BlockGuard with the "
6305 "SCSI layer: mask %d guard %d\n",
6306 lpfc_prot_mask, lpfc_prot_guard);
6308 scsi_host_set_prot(shost, lpfc_prot_mask);
6309 scsi_host_set_guard(shost, lpfc_prot_guard);
6311 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6312 "1479 Not Registering BlockGuard with the SCSI "
6313 "layer, Bad protection parameters: %d %d\n",
6314 old_mask, old_guard);
6317 if (!_dump_buf_data) {
6319 spin_lock_init(&_dump_buf_lock);
6321 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6322 if (_dump_buf_data) {
6323 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6324 "9043 BLKGRD: allocated %d pages for "
6325 "_dump_buf_data at 0x%p\n",
6326 (1 << pagecnt), _dump_buf_data);
6327 _dump_buf_data_order = pagecnt;
6328 memset(_dump_buf_data, 0,
6329 ((1 << PAGE_SHIFT) << pagecnt));
6334 if (!_dump_buf_data_order)
6335 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6336 "9044 BLKGRD: ERROR unable to allocate "
6337 "memory for hexdump\n");
6339 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6340 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
6341 "\n", _dump_buf_data);
6342 if (!_dump_buf_dif) {
6345 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6346 if (_dump_buf_dif) {
6347 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6348 "9046 BLKGRD: allocated %d pages for "
6349 "_dump_buf_dif at 0x%p\n",
6350 (1 << pagecnt), _dump_buf_dif);
6351 _dump_buf_dif_order = pagecnt;
6352 memset(_dump_buf_dif, 0,
6353 ((1 << PAGE_SHIFT) << pagecnt));
6358 if (!_dump_buf_dif_order)
6359 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6360 "9047 BLKGRD: ERROR unable to allocate "
6361 "memory for hexdump\n");
6363 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6364 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6369 * lpfc_post_init_setup - Perform necessary device post initialization setup.
6370 * @phba: pointer to lpfc hba data structure.
6372 * This routine is invoked to perform all the necessary post initialization
6373 * setup for the device.
6376 lpfc_post_init_setup(struct lpfc_hba *phba)
6378 struct Scsi_Host *shost;
6379 struct lpfc_adapter_event_header adapter_event;
6381 /* Get the default values for Model Name and Description */
6382 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6385 * hba setup may have changed the hba_queue_depth so we need to
6386 * adjust the value of can_queue.
6388 shost = pci_get_drvdata(phba->pcidev);
6389 shost->can_queue = phba->cfg_hba_queue_depth - 10;
6390 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6391 lpfc_setup_bg(phba, shost);
6393 lpfc_host_attrib_init(shost);
6395 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6396 spin_lock_irq(shost->host_lock);
6397 lpfc_poll_start_timer(phba);
6398 spin_unlock_irq(shost->host_lock);
6401 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6402 "0428 Perform SCSI scan\n");
6403 /* Send board arrival event to upper layer */
6404 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6405 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6406 fc_host_post_vendor_event(shost, fc_get_event_number(),
6407 sizeof(adapter_event),
6408 (char *) &adapter_event,
6414 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6415 * @phba: pointer to lpfc hba data structure.
6417 * This routine is invoked to set up the PCI device memory space for device
6418 * with SLI-3 interface spec.
6422 * other values - error
6425 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6427 struct pci_dev *pdev;
6428 unsigned long bar0map_len, bar2map_len;
6431 int error = -ENODEV;
6433 /* Obtain PCI device reference */
6437 pdev = phba->pcidev;
6439 /* Set the device DMA mask size */
6440 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6441 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6442 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6443 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6448 /* Get the bus address of Bar0 and Bar2 and the number of bytes
6449 * required by each mapping.
6451 phba->pci_bar0_map = pci_resource_start(pdev, 0);
6452 bar0map_len = pci_resource_len(pdev, 0);
6454 phba->pci_bar2_map = pci_resource_start(pdev, 2);
6455 bar2map_len = pci_resource_len(pdev, 2);
6457 /* Map HBA SLIM to a kernel virtual address. */
6458 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6459 if (!phba->slim_memmap_p) {
6460 dev_printk(KERN_ERR, &pdev->dev,
6461 "ioremap failed for SLIM memory.\n");
6465 /* Map HBA Control Registers to a kernel virtual address. */
6466 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6467 if (!phba->ctrl_regs_memmap_p) {
6468 dev_printk(KERN_ERR, &pdev->dev,
6469 "ioremap failed for HBA control registers.\n");
6470 goto out_iounmap_slim;
6473 /* Allocate memory for SLI-2 structures */
6474 phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6475 &phba->slim2p.phys, GFP_KERNEL);
6476 if (!phba->slim2p.virt)
6479 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6480 phba->mbox_ext = (phba->slim2p.virt +
6481 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6482 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6483 phba->IOCBs = (phba->slim2p.virt +
6484 offsetof(struct lpfc_sli2_slim, IOCBs));
6486 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6487 lpfc_sli_hbq_size(),
6488 &phba->hbqslimp.phys,
6490 if (!phba->hbqslimp.virt)
6493 hbq_count = lpfc_sli_hbq_count();
6494 ptr = phba->hbqslimp.virt;
6495 for (i = 0; i < hbq_count; ++i) {
6496 phba->hbqs[i].hbq_virt = ptr;
6497 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6498 ptr += (lpfc_hbq_defs[i]->entry_count *
6499 sizeof(struct lpfc_hbq_entry));
6501 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6502 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6504 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6506 INIT_LIST_HEAD(&phba->rb_pend_list);
6508 phba->MBslimaddr = phba->slim_memmap_p;
6509 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6510 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6511 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6512 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6517 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6518 phba->slim2p.virt, phba->slim2p.phys);
6520 iounmap(phba->ctrl_regs_memmap_p);
6522 iounmap(phba->slim_memmap_p);
6528 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6529 * @phba: pointer to lpfc hba data structure.
6531 * This routine is invoked to unset the PCI device memory space for device
6532 * with SLI-3 interface spec.
6535 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6537 struct pci_dev *pdev;
6539 /* Obtain PCI device reference */
6543 pdev = phba->pcidev;
6545 /* Free coherent DMA memory allocated */
6546 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6547 phba->hbqslimp.virt, phba->hbqslimp.phys);
6548 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6549 phba->slim2p.virt, phba->slim2p.phys);
6551 /* I/O memory unmap */
6552 iounmap(phba->ctrl_regs_memmap_p);
6553 iounmap(phba->slim_memmap_p);
6559 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6560 * @phba: pointer to lpfc hba data structure.
6562 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6563 * done and check status.
6565 * Return 0 if successful, otherwise -ENODEV.
6568 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6570 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6571 struct lpfc_register reg_data;
6572 int i, port_error = 0;
6575 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6576 memset(®_data, 0, sizeof(reg_data));
6577 if (!phba->sli4_hba.PSMPHRregaddr)
6580 /* Wait up to 30 seconds for the SLI Port POST done and ready */
6581 for (i = 0; i < 3000; i++) {
6582 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6583 &portsmphr_reg.word0) ||
6584 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6585 /* Port has a fatal POST error, break out */
6586 port_error = -ENODEV;
6589 if (LPFC_POST_STAGE_PORT_READY ==
6590 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6596 * If there was a port error during POST, then don't proceed with
6597 * other register reads as the data may not be valid. Just exit.
6600 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6601 "1408 Port Failed POST - portsmphr=0x%x, "
6602 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6603 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6604 portsmphr_reg.word0,
6605 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6606 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6607 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6608 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6609 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6610 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6611 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6612 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6614 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6615 "2534 Device Info: SLIFamily=0x%x, "
6616 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6617 "SLIHint_2=0x%x, FT=0x%x\n",
6618 bf_get(lpfc_sli_intf_sli_family,
6619 &phba->sli4_hba.sli_intf),
6620 bf_get(lpfc_sli_intf_slirev,
6621 &phba->sli4_hba.sli_intf),
6622 bf_get(lpfc_sli_intf_if_type,
6623 &phba->sli4_hba.sli_intf),
6624 bf_get(lpfc_sli_intf_sli_hint1,
6625 &phba->sli4_hba.sli_intf),
6626 bf_get(lpfc_sli_intf_sli_hint2,
6627 &phba->sli4_hba.sli_intf),
6628 bf_get(lpfc_sli_intf_func_type,
6629 &phba->sli4_hba.sli_intf));
6631 * Check for other Port errors during the initialization
6632 * process. Fail the load if the port did not come up
6635 if_type = bf_get(lpfc_sli_intf_if_type,
6636 &phba->sli4_hba.sli_intf);
6638 case LPFC_SLI_INTF_IF_TYPE_0:
6639 phba->sli4_hba.ue_mask_lo =
6640 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6641 phba->sli4_hba.ue_mask_hi =
6642 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6644 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6646 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6647 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6648 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6649 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6650 "1422 Unrecoverable Error "
6651 "Detected during POST "
6652 "uerr_lo_reg=0x%x, "
6653 "uerr_hi_reg=0x%x, "
6654 "ue_mask_lo_reg=0x%x, "
6655 "ue_mask_hi_reg=0x%x\n",
6658 phba->sli4_hba.ue_mask_lo,
6659 phba->sli4_hba.ue_mask_hi);
6660 port_error = -ENODEV;
6663 case LPFC_SLI_INTF_IF_TYPE_2:
6664 /* Final checks. The port status should be clean. */
6665 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6667 (bf_get(lpfc_sliport_status_err, ®_data) &&
6668 !bf_get(lpfc_sliport_status_rn, ®_data))) {
6669 phba->work_status[0] =
6670 readl(phba->sli4_hba.u.if_type2.
6672 phba->work_status[1] =
6673 readl(phba->sli4_hba.u.if_type2.
6675 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6676 "2888 Unrecoverable port error "
6677 "following POST: port status reg "
6678 "0x%x, port_smphr reg 0x%x, "
6679 "error 1=0x%x, error 2=0x%x\n",
6681 portsmphr_reg.word0,
6682 phba->work_status[0],
6683 phba->work_status[1]);
6684 port_error = -ENODEV;
6687 case LPFC_SLI_INTF_IF_TYPE_1:
6696 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6697 * @phba: pointer to lpfc hba data structure.
6698 * @if_type: The SLI4 interface type getting configured.
6700 * This routine is invoked to set up SLI4 BAR0 PCI config space register
6704 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6707 case LPFC_SLI_INTF_IF_TYPE_0:
6708 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6709 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6710 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6711 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6712 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6713 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6714 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6715 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6716 phba->sli4_hba.SLIINTFregaddr =
6717 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6719 case LPFC_SLI_INTF_IF_TYPE_2:
6720 phba->sli4_hba.u.if_type2.ERR1regaddr =
6721 phba->sli4_hba.conf_regs_memmap_p +
6722 LPFC_CTL_PORT_ER1_OFFSET;
6723 phba->sli4_hba.u.if_type2.ERR2regaddr =
6724 phba->sli4_hba.conf_regs_memmap_p +
6725 LPFC_CTL_PORT_ER2_OFFSET;
6726 phba->sli4_hba.u.if_type2.CTRLregaddr =
6727 phba->sli4_hba.conf_regs_memmap_p +
6728 LPFC_CTL_PORT_CTL_OFFSET;
6729 phba->sli4_hba.u.if_type2.STATUSregaddr =
6730 phba->sli4_hba.conf_regs_memmap_p +
6731 LPFC_CTL_PORT_STA_OFFSET;
6732 phba->sli4_hba.SLIINTFregaddr =
6733 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6734 phba->sli4_hba.PSMPHRregaddr =
6735 phba->sli4_hba.conf_regs_memmap_p +
6736 LPFC_CTL_PORT_SEM_OFFSET;
6737 phba->sli4_hba.RQDBregaddr =
6738 phba->sli4_hba.conf_regs_memmap_p +
6739 LPFC_ULP0_RQ_DOORBELL;
6740 phba->sli4_hba.WQDBregaddr =
6741 phba->sli4_hba.conf_regs_memmap_p +
6742 LPFC_ULP0_WQ_DOORBELL;
6743 phba->sli4_hba.EQCQDBregaddr =
6744 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6745 phba->sli4_hba.MQDBregaddr =
6746 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6747 phba->sli4_hba.BMBXregaddr =
6748 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6750 case LPFC_SLI_INTF_IF_TYPE_1:
6752 dev_printk(KERN_ERR, &phba->pcidev->dev,
6753 "FATAL - unsupported SLI4 interface type - %d\n",
6760 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6761 * @phba: pointer to lpfc hba data structure.
6763 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6767 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6769 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6770 LPFC_SLIPORT_IF0_SMPHR;
6771 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6773 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6775 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6780 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6781 * @phba: pointer to lpfc hba data structure.
6782 * @vf: virtual function number
6784 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6785 * based on the given viftual function number, @vf.
6787 * Return 0 if successful, otherwise -ENODEV.
6790 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6792 if (vf > LPFC_VIR_FUNC_MAX)
6795 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6796 vf * LPFC_VFR_PAGE_SIZE +
6797 LPFC_ULP0_RQ_DOORBELL);
6798 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6799 vf * LPFC_VFR_PAGE_SIZE +
6800 LPFC_ULP0_WQ_DOORBELL);
6801 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6802 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6803 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6804 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6805 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6806 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6811 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6812 * @phba: pointer to lpfc hba data structure.
6814 * This routine is invoked to create the bootstrap mailbox
6815 * region consistent with the SLI-4 interface spec. This
6816 * routine allocates all memory necessary to communicate
6817 * mailbox commands to the port and sets up all alignment
6818 * needs. No locks are expected to be held when calling
6823 * -ENOMEM - could not allocated memory.
6826 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6829 struct lpfc_dmabuf *dmabuf;
6830 struct dma_address *dma_address;
6834 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6839 * The bootstrap mailbox region is comprised of 2 parts
6840 * plus an alignment restriction of 16 bytes.
6842 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6843 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
6844 &dmabuf->phys, GFP_KERNEL);
6845 if (!dmabuf->virt) {
6851 * Initialize the bootstrap mailbox pointers now so that the register
6852 * operations are simple later. The mailbox dma address is required
6853 * to be 16-byte aligned. Also align the virtual memory as each
6854 * maibox is copied into the bmbx mailbox region before issuing the
6855 * command to the port.
6857 phba->sli4_hba.bmbx.dmabuf = dmabuf;
6858 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6860 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6861 LPFC_ALIGN_16_BYTE);
6862 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6863 LPFC_ALIGN_16_BYTE);
6866 * Set the high and low physical addresses now. The SLI4 alignment
6867 * requirement is 16 bytes and the mailbox is posted to the port
6868 * as two 30-bit addresses. The other data is a bit marking whether
6869 * the 30-bit address is the high or low address.
6870 * Upcast bmbx aphys to 64bits so shift instruction compiles
6871 * clean on 32 bit machines.
6873 dma_address = &phba->sli4_hba.bmbx.dma_address;
6874 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6875 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6876 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6877 LPFC_BMBX_BIT1_ADDR_HI);
6879 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6880 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6881 LPFC_BMBX_BIT1_ADDR_LO);
6886 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6887 * @phba: pointer to lpfc hba data structure.
6889 * This routine is invoked to teardown the bootstrap mailbox
6890 * region and release all host resources. This routine requires
6891 * the caller to ensure all mailbox commands recovered, no
6892 * additional mailbox comands are sent, and interrupts are disabled
6893 * before calling this routine.
6897 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6899 dma_free_coherent(&phba->pcidev->dev,
6900 phba->sli4_hba.bmbx.bmbx_size,
6901 phba->sli4_hba.bmbx.dmabuf->virt,
6902 phba->sli4_hba.bmbx.dmabuf->phys);
6904 kfree(phba->sli4_hba.bmbx.dmabuf);
6905 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6909 * lpfc_sli4_read_config - Get the config parameters.
6910 * @phba: pointer to lpfc hba data structure.
6912 * This routine is invoked to read the configuration parameters from the HBA.
6913 * The configuration parameters are used to set the base and maximum values
6914 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6915 * allocation for the port.
6919 * -ENOMEM - No available memory
6920 * -EIO - The mailbox failed to complete successfully.
6923 lpfc_sli4_read_config(struct lpfc_hba *phba)
6926 struct lpfc_mbx_read_config *rd_config;
6927 union lpfc_sli4_cfg_shdr *shdr;
6928 uint32_t shdr_status, shdr_add_status;
6929 struct lpfc_mbx_get_func_cfg *get_func_cfg;
6930 struct lpfc_rsrc_desc_fcfcoe *desc;
6932 int length, i, rc = 0, rc2;
6934 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6936 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6937 "2011 Unable to allocate memory for issuing "
6938 "SLI_CONFIG_SPECIAL mailbox command\n");
6942 lpfc_read_config(phba, pmb);
6944 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6945 if (rc != MBX_SUCCESS) {
6946 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6947 "2012 Mailbox failed , mbxCmd x%x "
6948 "READ_CONFIG, mbxStatus x%x\n",
6949 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6950 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6953 rd_config = &pmb->u.mqe.un.rd_config;
6954 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6955 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6956 phba->sli4_hba.lnk_info.lnk_tp =
6957 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6958 phba->sli4_hba.lnk_info.lnk_no =
6959 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6960 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6961 "3081 lnk_type:%d, lnk_numb:%d\n",
6962 phba->sli4_hba.lnk_info.lnk_tp,
6963 phba->sli4_hba.lnk_info.lnk_no);
6965 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6966 "3082 Mailbox (x%x) returned ldv:x0\n",
6967 bf_get(lpfc_mqe_command, &pmb->u.mqe));
6968 phba->sli4_hba.extents_in_use =
6969 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6970 phba->sli4_hba.max_cfg_param.max_xri =
6971 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6972 phba->sli4_hba.max_cfg_param.xri_base =
6973 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6974 phba->sli4_hba.max_cfg_param.max_vpi =
6975 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6976 /* Limit the max we support */
6977 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
6978 phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
6979 phba->sli4_hba.max_cfg_param.vpi_base =
6980 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6981 phba->sli4_hba.max_cfg_param.max_rpi =
6982 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6983 phba->sli4_hba.max_cfg_param.rpi_base =
6984 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6985 phba->sli4_hba.max_cfg_param.max_vfi =
6986 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6987 phba->sli4_hba.max_cfg_param.vfi_base =
6988 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6989 phba->sli4_hba.max_cfg_param.max_fcfi =
6990 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6991 phba->sli4_hba.max_cfg_param.max_eq =
6992 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6993 phba->sli4_hba.max_cfg_param.max_rq =
6994 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6995 phba->sli4_hba.max_cfg_param.max_wq =
6996 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6997 phba->sli4_hba.max_cfg_param.max_cq =
6998 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6999 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
7000 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
7001 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
7002 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
7003 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
7004 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
7005 phba->max_vports = phba->max_vpi;
7006 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7007 "2003 cfg params Extents? %d "
7013 phba->sli4_hba.extents_in_use,
7014 phba->sli4_hba.max_cfg_param.xri_base,
7015 phba->sli4_hba.max_cfg_param.max_xri,
7016 phba->sli4_hba.max_cfg_param.vpi_base,
7017 phba->sli4_hba.max_cfg_param.max_vpi,
7018 phba->sli4_hba.max_cfg_param.vfi_base,
7019 phba->sli4_hba.max_cfg_param.max_vfi,
7020 phba->sli4_hba.max_cfg_param.rpi_base,
7021 phba->sli4_hba.max_cfg_param.max_rpi,
7022 phba->sli4_hba.max_cfg_param.max_fcfi);
7028 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
7029 length = phba->sli4_hba.max_cfg_param.max_xri -
7030 lpfc_sli4_get_els_iocb_cnt(phba);
7031 if (phba->cfg_hba_queue_depth > length) {
7032 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7033 "3361 HBA queue depth changed from %d to %d\n",
7034 phba->cfg_hba_queue_depth, length);
7035 phba->cfg_hba_queue_depth = length;
7038 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
7039 LPFC_SLI_INTF_IF_TYPE_2)
7042 /* get the pf# and vf# for SLI4 if_type 2 port */
7043 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
7044 sizeof(struct lpfc_sli4_cfg_mhdr));
7045 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
7046 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
7047 length, LPFC_SLI4_MBX_EMBED);
7049 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7050 shdr = (union lpfc_sli4_cfg_shdr *)
7051 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
7052 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7053 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7054 if (rc2 || shdr_status || shdr_add_status) {
7055 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7056 "3026 Mailbox failed , mbxCmd x%x "
7057 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
7058 bf_get(lpfc_mqe_command, &pmb->u.mqe),
7059 bf_get(lpfc_mqe_status, &pmb->u.mqe));
7063 /* search for fc_fcoe resrouce descriptor */
7064 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
7066 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
7067 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
7068 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
7069 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
7070 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
7071 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
7074 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
7075 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
7076 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
7077 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
7078 phba->sli4_hba.iov.pf_number =
7079 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
7080 phba->sli4_hba.iov.vf_number =
7081 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
7086 if (i < LPFC_RSRC_DESC_MAX_NUM)
7087 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7088 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
7089 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
7090 phba->sli4_hba.iov.vf_number);
7092 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7093 "3028 GET_FUNCTION_CONFIG: failed to find "
7094 "Resrouce Descriptor:x%x\n",
7095 LPFC_RSRC_DESC_TYPE_FCFCOE);
7098 mempool_free(pmb, phba->mbox_mem_pool);
7103 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
7104 * @phba: pointer to lpfc hba data structure.
7106 * This routine is invoked to setup the port-side endian order when
7107 * the port if_type is 0. This routine has no function for other
7112 * -ENOMEM - No available memory
7113 * -EIO - The mailbox failed to complete successfully.
7116 lpfc_setup_endian_order(struct lpfc_hba *phba)
7118 LPFC_MBOXQ_t *mboxq;
7119 uint32_t if_type, rc = 0;
7120 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7121 HOST_ENDIAN_HIGH_WORD1};
7123 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7125 case LPFC_SLI_INTF_IF_TYPE_0:
7126 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7129 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7130 "0492 Unable to allocate memory for "
7131 "issuing SLI_CONFIG_SPECIAL mailbox "
7137 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
7138 * two words to contain special data values and no other data.
7140 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
7141 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
7142 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7143 if (rc != MBX_SUCCESS) {
7144 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7145 "0493 SLI_CONFIG_SPECIAL mailbox "
7146 "failed with status x%x\n",
7150 mempool_free(mboxq, phba->mbox_mem_pool);
7152 case LPFC_SLI_INTF_IF_TYPE_2:
7153 case LPFC_SLI_INTF_IF_TYPE_1:
7161 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
7162 * @phba: pointer to lpfc hba data structure.
7164 * This routine is invoked to check the user settable queue counts for EQs and
7165 * CQs. after this routine is called the counts will be set to valid values that
7166 * adhere to the constraints of the system's interrupt vectors and the port's
7171 * -ENOMEM - No available memory
7174 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
7176 int cfg_fcp_io_channel;
7179 int fof_vectors = phba->cfg_fof ? 1 : 0;
7182 * Sanity check for configured queue parameters against the run-time
7186 /* Sanity check on HBA EQ parameters */
7187 cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
7189 /* It doesn't make sense to have more io channels then online CPUs */
7190 for_each_present_cpu(cpu) {
7191 if (cpu_online(cpu))
7194 phba->sli4_hba.num_online_cpu = i;
7195 phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7196 phba->sli4_hba.curr_disp_cpu = 0;
7198 if (i < cfg_fcp_io_channel) {
7199 lpfc_printf_log(phba,
7201 "3188 Reducing IO channels to match number of "
7202 "online CPUs: from %d to %d\n",
7203 cfg_fcp_io_channel, i);
7204 cfg_fcp_io_channel = i;
7207 if (cfg_fcp_io_channel + fof_vectors >
7208 phba->sli4_hba.max_cfg_param.max_eq) {
7209 if (phba->sli4_hba.max_cfg_param.max_eq <
7210 LPFC_FCP_IO_CHAN_MIN) {
7211 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7212 "2574 Not enough EQs (%d) from the "
7213 "pci function for supporting FCP "
7215 phba->sli4_hba.max_cfg_param.max_eq,
7216 phba->cfg_fcp_io_channel);
7219 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7220 "2575 Reducing IO channels to match number of "
7221 "available EQs: from %d to %d\n",
7223 phba->sli4_hba.max_cfg_param.max_eq);
7224 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq -
7228 /* The actual number of FCP event queues adopted */
7229 phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
7231 /* Get EQ depth from module parameter, fake the default for now */
7232 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7233 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7235 /* Get CQ depth from module parameter, fake the default for now */
7236 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7237 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7245 * lpfc_sli4_queue_create - Create all the SLI4 queues
7246 * @phba: pointer to lpfc hba data structure.
7248 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
7249 * operation. For each SLI4 queue type, the parameters such as queue entry
7250 * count (queue depth) shall be taken from the module parameter. For now,
7251 * we just use some constant number as place holder.
7255 * -ENOMEM - No availble memory
7256 * -EIO - The mailbox failed to complete successfully.
7259 lpfc_sli4_queue_create(struct lpfc_hba *phba)
7261 struct lpfc_queue *qdesc;
7265 * Create HBA Record arrays.
7267 if (!phba->cfg_fcp_io_channel)
7270 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
7271 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
7272 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
7273 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
7274 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
7275 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
7277 phba->sli4_hba.hba_eq = kzalloc((sizeof(struct lpfc_queue *) *
7278 phba->cfg_fcp_io_channel), GFP_KERNEL);
7279 if (!phba->sli4_hba.hba_eq) {
7280 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7281 "2576 Failed allocate memory for "
7282 "fast-path EQ record array\n");
7286 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
7287 phba->cfg_fcp_io_channel), GFP_KERNEL);
7288 if (!phba->sli4_hba.fcp_cq) {
7289 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7290 "2577 Failed allocate memory for fast-path "
7291 "CQ record array\n");
7295 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
7296 phba->cfg_fcp_io_channel), GFP_KERNEL);
7297 if (!phba->sli4_hba.fcp_wq) {
7298 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7299 "2578 Failed allocate memory for fast-path "
7300 "WQ record array\n");
7305 * Since the first EQ can have multiple CQs associated with it,
7306 * this array is used to quickly see if we have a FCP fast-path
7309 phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
7310 phba->cfg_fcp_io_channel), GFP_KERNEL);
7311 if (!phba->sli4_hba.fcp_cq_map) {
7312 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7313 "2545 Failed allocate memory for fast-path "
7319 * Create HBA Event Queues (EQs). The cfg_fcp_io_channel specifies
7320 * how many EQs to create.
7322 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7325 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
7326 phba->sli4_hba.eq_ecount);
7328 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7329 "0497 Failed allocate EQ (%d)\n", idx);
7332 phba->sli4_hba.hba_eq[idx] = qdesc;
7334 /* Create Fast Path FCP CQs */
7335 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7336 phba->sli4_hba.cq_ecount);
7338 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7339 "0499 Failed allocate fast-path FCP "
7343 phba->sli4_hba.fcp_cq[idx] = qdesc;
7345 /* Create Fast Path FCP WQs */
7346 if (phba->fcp_embed_io) {
7347 qdesc = lpfc_sli4_queue_alloc(phba,
7349 LPFC_WQE128_DEF_COUNT);
7351 qdesc = lpfc_sli4_queue_alloc(phba,
7352 phba->sli4_hba.wq_esize,
7353 phba->sli4_hba.wq_ecount);
7356 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7357 "0503 Failed allocate fast-path FCP "
7361 phba->sli4_hba.fcp_wq[idx] = qdesc;
7366 * Create Slow Path Completion Queues (CQs)
7369 /* Create slow-path Mailbox Command Complete Queue */
7370 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7371 phba->sli4_hba.cq_ecount);
7373 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7374 "0500 Failed allocate slow-path mailbox CQ\n");
7377 phba->sli4_hba.mbx_cq = qdesc;
7379 /* Create slow-path ELS Complete Queue */
7380 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7381 phba->sli4_hba.cq_ecount);
7383 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7384 "0501 Failed allocate slow-path ELS CQ\n");
7387 phba->sli4_hba.els_cq = qdesc;
7391 * Create Slow Path Work Queues (WQs)
7394 /* Create Mailbox Command Queue */
7396 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7397 phba->sli4_hba.mq_ecount);
7399 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7400 "0505 Failed allocate slow-path MQ\n");
7403 phba->sli4_hba.mbx_wq = qdesc;
7406 * Create ELS Work Queues
7409 /* Create slow-path ELS Work Queue */
7410 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7411 phba->sli4_hba.wq_ecount);
7413 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7414 "0504 Failed allocate slow-path ELS WQ\n");
7417 phba->sli4_hba.els_wq = qdesc;
7420 * Create Receive Queue (RQ)
7423 /* Create Receive Queue for header */
7424 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7425 phba->sli4_hba.rq_ecount);
7427 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7428 "0506 Failed allocate receive HRQ\n");
7431 phba->sli4_hba.hdr_rq = qdesc;
7433 /* Create Receive Queue for data */
7434 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7435 phba->sli4_hba.rq_ecount);
7437 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7438 "0507 Failed allocate receive DRQ\n");
7441 phba->sli4_hba.dat_rq = qdesc;
7443 /* Create the Queues needed for Flash Optimized Fabric operations */
7445 lpfc_fof_queue_create(phba);
7449 lpfc_sli4_queue_destroy(phba);
7454 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7455 * @phba: pointer to lpfc hba data structure.
7457 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7462 * -ENOMEM - No available memory
7463 * -EIO - The mailbox failed to complete successfully.
7466 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7471 lpfc_fof_queue_destroy(phba);
7473 if (phba->sli4_hba.hba_eq != NULL) {
7474 /* Release HBA event queue */
7475 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7476 if (phba->sli4_hba.hba_eq[idx] != NULL) {
7477 lpfc_sli4_queue_free(
7478 phba->sli4_hba.hba_eq[idx]);
7479 phba->sli4_hba.hba_eq[idx] = NULL;
7482 kfree(phba->sli4_hba.hba_eq);
7483 phba->sli4_hba.hba_eq = NULL;
7486 if (phba->sli4_hba.fcp_cq != NULL) {
7487 /* Release FCP completion queue */
7488 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7489 if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7490 lpfc_sli4_queue_free(
7491 phba->sli4_hba.fcp_cq[idx]);
7492 phba->sli4_hba.fcp_cq[idx] = NULL;
7495 kfree(phba->sli4_hba.fcp_cq);
7496 phba->sli4_hba.fcp_cq = NULL;
7499 if (phba->sli4_hba.fcp_wq != NULL) {
7500 /* Release FCP work queue */
7501 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7502 if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7503 lpfc_sli4_queue_free(
7504 phba->sli4_hba.fcp_wq[idx]);
7505 phba->sli4_hba.fcp_wq[idx] = NULL;
7508 kfree(phba->sli4_hba.fcp_wq);
7509 phba->sli4_hba.fcp_wq = NULL;
7512 /* Release FCP CQ mapping array */
7513 if (phba->sli4_hba.fcp_cq_map != NULL) {
7514 kfree(phba->sli4_hba.fcp_cq_map);
7515 phba->sli4_hba.fcp_cq_map = NULL;
7518 /* Release mailbox command work queue */
7519 if (phba->sli4_hba.mbx_wq != NULL) {
7520 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
7521 phba->sli4_hba.mbx_wq = NULL;
7524 /* Release ELS work queue */
7525 if (phba->sli4_hba.els_wq != NULL) {
7526 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7527 phba->sli4_hba.els_wq = NULL;
7530 /* Release unsolicited receive queue */
7531 if (phba->sli4_hba.hdr_rq != NULL) {
7532 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7533 phba->sli4_hba.hdr_rq = NULL;
7535 if (phba->sli4_hba.dat_rq != NULL) {
7536 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7537 phba->sli4_hba.dat_rq = NULL;
7540 /* Release ELS complete queue */
7541 if (phba->sli4_hba.els_cq != NULL) {
7542 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7543 phba->sli4_hba.els_cq = NULL;
7546 /* Release mailbox command complete queue */
7547 if (phba->sli4_hba.mbx_cq != NULL) {
7548 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7549 phba->sli4_hba.mbx_cq = NULL;
7556 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7557 * @phba: pointer to lpfc hba data structure.
7559 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7564 * -ENOMEM - No available memory
7565 * -EIO - The mailbox failed to complete successfully.
7568 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7570 struct lpfc_sli *psli = &phba->sli;
7571 struct lpfc_sli_ring *pring;
7573 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7574 int fcp_cq_index = 0;
7575 uint32_t shdr_status, shdr_add_status;
7576 union lpfc_sli4_cfg_shdr *shdr;
7577 LPFC_MBOXQ_t *mboxq;
7580 /* Check for dual-ULP support */
7581 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7583 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7584 "3249 Unable to allocate memory for "
7585 "QUERY_FW_CFG mailbox command\n");
7588 length = (sizeof(struct lpfc_mbx_query_fw_config) -
7589 sizeof(struct lpfc_sli4_cfg_mhdr));
7590 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7591 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
7592 length, LPFC_SLI4_MBX_EMBED);
7594 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7596 shdr = (union lpfc_sli4_cfg_shdr *)
7597 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7598 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7599 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7600 if (shdr_status || shdr_add_status || rc) {
7601 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7602 "3250 QUERY_FW_CFG mailbox failed with status "
7603 "x%x add_status x%x, mbx status x%x\n",
7604 shdr_status, shdr_add_status, rc);
7605 if (rc != MBX_TIMEOUT)
7606 mempool_free(mboxq, phba->mbox_mem_pool);
7611 phba->sli4_hba.fw_func_mode =
7612 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
7613 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
7614 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
7615 phba->sli4_hba.physical_port =
7616 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
7617 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7618 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
7619 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
7620 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
7622 if (rc != MBX_TIMEOUT)
7623 mempool_free(mboxq, phba->mbox_mem_pool);
7626 * Set up HBA Event Queues (EQs)
7629 /* Set up HBA event queue */
7630 if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7631 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7632 "3147 Fast-path EQs not allocated\n");
7636 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7637 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7638 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7639 "0522 Fast-path EQ (%d) not "
7640 "allocated\n", fcp_eqidx);
7642 goto out_destroy_hba_eq;
7644 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7645 (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7647 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7648 "0523 Failed setup of fast-path EQ "
7649 "(%d), rc = 0x%x\n", fcp_eqidx,
7651 goto out_destroy_hba_eq;
7653 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7654 "2584 HBA EQ setup: "
7655 "queue[%d]-id=%d\n", fcp_eqidx,
7656 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7659 /* Set up fast-path FCP Response Complete Queue */
7660 if (!phba->sli4_hba.fcp_cq) {
7661 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7662 "3148 Fast-path FCP CQ array not "
7665 goto out_destroy_hba_eq;
7668 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7669 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7670 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7671 "0526 Fast-path FCP CQ (%d) not "
7672 "allocated\n", fcp_cqidx);
7674 goto out_destroy_fcp_cq;
7676 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7677 phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7679 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7680 "0527 Failed setup of fast-path FCP "
7681 "CQ (%d), rc = 0x%x\n", fcp_cqidx,
7683 goto out_destroy_fcp_cq;
7686 /* Setup fcp_cq_map for fast lookup */
7687 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7688 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7690 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7691 "2588 FCP CQ setup: cq[%d]-id=%d, "
7692 "parent seq[%d]-id=%d\n",
7694 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7696 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7699 /* Set up fast-path FCP Work Queue */
7700 if (!phba->sli4_hba.fcp_wq) {
7701 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7702 "3149 Fast-path FCP WQ array not "
7705 goto out_destroy_fcp_cq;
7708 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7709 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7710 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7711 "0534 Fast-path FCP WQ (%d) not "
7712 "allocated\n", fcp_wqidx);
7714 goto out_destroy_fcp_wq;
7716 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7717 phba->sli4_hba.fcp_cq[fcp_wqidx],
7720 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7721 "0535 Failed setup of fast-path FCP "
7722 "WQ (%d), rc = 0x%x\n", fcp_wqidx,
7724 goto out_destroy_fcp_wq;
7727 /* Bind this WQ to the next FCP ring */
7728 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7729 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7730 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7732 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7733 "2591 FCP WQ setup: wq[%d]-id=%d, "
7734 "parent cq[%d]-id=%d\n",
7736 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7738 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7741 * Set up Complete Queues (CQs)
7744 /* Set up slow-path MBOX Complete Queue as the first CQ */
7745 if (!phba->sli4_hba.mbx_cq) {
7746 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7747 "0528 Mailbox CQ not allocated\n");
7749 goto out_destroy_fcp_wq;
7751 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7752 phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7754 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7755 "0529 Failed setup of slow-path mailbox CQ: "
7756 "rc = 0x%x\n", (uint32_t)rc);
7757 goto out_destroy_fcp_wq;
7759 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7760 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7761 phba->sli4_hba.mbx_cq->queue_id,
7762 phba->sli4_hba.hba_eq[0]->queue_id);
7764 /* Set up slow-path ELS Complete Queue */
7765 if (!phba->sli4_hba.els_cq) {
7766 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7767 "0530 ELS CQ not allocated\n");
7769 goto out_destroy_mbx_cq;
7771 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7772 phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7774 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7775 "0531 Failed setup of slow-path ELS CQ: "
7776 "rc = 0x%x\n", (uint32_t)rc);
7777 goto out_destroy_mbx_cq;
7779 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7780 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7781 phba->sli4_hba.els_cq->queue_id,
7782 phba->sli4_hba.hba_eq[0]->queue_id);
7785 * Set up all the Work Queues (WQs)
7788 /* Set up Mailbox Command Queue */
7789 if (!phba->sli4_hba.mbx_wq) {
7790 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7791 "0538 Slow-path MQ not allocated\n");
7793 goto out_destroy_els_cq;
7795 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7796 phba->sli4_hba.mbx_cq, LPFC_MBOX);
7798 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7799 "0539 Failed setup of slow-path MQ: "
7801 goto out_destroy_els_cq;
7803 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7804 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7805 phba->sli4_hba.mbx_wq->queue_id,
7806 phba->sli4_hba.mbx_cq->queue_id);
7808 /* Set up slow-path ELS Work Queue */
7809 if (!phba->sli4_hba.els_wq) {
7810 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7811 "0536 Slow-path ELS WQ not allocated\n");
7813 goto out_destroy_mbx_wq;
7815 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7816 phba->sli4_hba.els_cq, LPFC_ELS);
7818 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7819 "0537 Failed setup of slow-path ELS WQ: "
7820 "rc = 0x%x\n", (uint32_t)rc);
7821 goto out_destroy_mbx_wq;
7824 /* Bind this WQ to the ELS ring */
7825 pring = &psli->ring[LPFC_ELS_RING];
7826 pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7827 phba->sli4_hba.els_cq->pring = pring;
7829 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7830 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7831 phba->sli4_hba.els_wq->queue_id,
7832 phba->sli4_hba.els_cq->queue_id);
7835 * Create Receive Queue (RQ)
7837 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7838 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7839 "0540 Receive Queue not allocated\n");
7841 goto out_destroy_els_wq;
7844 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7845 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7847 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7848 phba->sli4_hba.els_cq, LPFC_USOL);
7850 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7851 "0541 Failed setup of Receive Queue: "
7852 "rc = 0x%x\n", (uint32_t)rc);
7853 goto out_destroy_fcp_wq;
7856 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7857 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7858 "parent cq-id=%d\n",
7859 phba->sli4_hba.hdr_rq->queue_id,
7860 phba->sli4_hba.dat_rq->queue_id,
7861 phba->sli4_hba.els_cq->queue_id);
7863 if (phba->cfg_fof) {
7864 rc = lpfc_fof_queue_setup(phba);
7866 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7867 "0549 Failed setup of FOF Queues: "
7869 goto out_destroy_els_rq;
7874 * Configure EQ delay multipier for interrupt coalescing using
7875 * MODIFY_EQ_DELAY for all EQs created, LPFC_MAX_EQ_DELAY at a time.
7877 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
7878 fcp_eqidx += LPFC_MAX_EQ_DELAY)
7879 lpfc_modify_fcp_eq_delay(phba, fcp_eqidx);
7883 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7885 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7887 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7889 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7891 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7893 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7894 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7896 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7897 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7899 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7900 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7906 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7907 * @phba: pointer to lpfc hba data structure.
7909 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7914 * -ENOMEM - No available memory
7915 * -EIO - The mailbox failed to complete successfully.
7918 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7922 /* Unset the queues created for Flash Optimized Fabric operations */
7924 lpfc_fof_queue_destroy(phba);
7925 /* Unset mailbox command work queue */
7926 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7927 /* Unset ELS work queue */
7928 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7929 /* Unset unsolicited receive queue */
7930 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7931 /* Unset FCP work queue */
7932 if (phba->sli4_hba.fcp_wq) {
7933 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7935 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7937 /* Unset mailbox command complete queue */
7938 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7939 /* Unset ELS complete queue */
7940 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7941 /* Unset FCP response complete queue */
7942 if (phba->sli4_hba.fcp_cq) {
7943 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7945 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7947 /* Unset fast-path event queue */
7948 if (phba->sli4_hba.hba_eq) {
7949 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7951 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
7956 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7957 * @phba: pointer to lpfc hba data structure.
7959 * This routine is invoked to allocate and set up a pool of completion queue
7960 * events. The body of the completion queue event is a completion queue entry
7961 * CQE. For now, this pool is used for the interrupt service routine to queue
7962 * the following HBA completion queue events for the worker thread to process:
7963 * - Mailbox asynchronous events
7964 * - Receive queue completion unsolicited events
7965 * Later, this can be used for all the slow-path events.
7969 * -ENOMEM - No available memory
7972 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7974 struct lpfc_cq_event *cq_event;
7977 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7978 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7980 goto out_pool_create_fail;
7981 list_add_tail(&cq_event->list,
7982 &phba->sli4_hba.sp_cqe_event_pool);
7986 out_pool_create_fail:
7987 lpfc_sli4_cq_event_pool_destroy(phba);
7992 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7993 * @phba: pointer to lpfc hba data structure.
7995 * This routine is invoked to free the pool of completion queue events at
7996 * driver unload time. Note that, it is the responsibility of the driver
7997 * cleanup routine to free all the outstanding completion-queue events
7998 * allocated from this pool back into the pool before invoking this routine
7999 * to destroy the pool.
8002 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
8004 struct lpfc_cq_event *cq_event, *next_cq_event;
8006 list_for_each_entry_safe(cq_event, next_cq_event,
8007 &phba->sli4_hba.sp_cqe_event_pool, list) {
8008 list_del(&cq_event->list);
8014 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
8015 * @phba: pointer to lpfc hba data structure.
8017 * This routine is the lock free version of the API invoked to allocate a
8018 * completion-queue event from the free pool.
8020 * Return: Pointer to the newly allocated completion-queue event if successful
8023 struct lpfc_cq_event *
8024 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
8026 struct lpfc_cq_event *cq_event = NULL;
8028 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
8029 struct lpfc_cq_event, list);
8034 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
8035 * @phba: pointer to lpfc hba data structure.
8037 * This routine is the lock version of the API invoked to allocate a
8038 * completion-queue event from the free pool.
8040 * Return: Pointer to the newly allocated completion-queue event if successful
8043 struct lpfc_cq_event *
8044 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
8046 struct lpfc_cq_event *cq_event;
8047 unsigned long iflags;
8049 spin_lock_irqsave(&phba->hbalock, iflags);
8050 cq_event = __lpfc_sli4_cq_event_alloc(phba);
8051 spin_unlock_irqrestore(&phba->hbalock, iflags);
8056 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
8057 * @phba: pointer to lpfc hba data structure.
8058 * @cq_event: pointer to the completion queue event to be freed.
8060 * This routine is the lock free version of the API invoked to release a
8061 * completion-queue event back into the free pool.
8064 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
8065 struct lpfc_cq_event *cq_event)
8067 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
8071 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
8072 * @phba: pointer to lpfc hba data structure.
8073 * @cq_event: pointer to the completion queue event to be freed.
8075 * This routine is the lock version of the API invoked to release a
8076 * completion-queue event back into the free pool.
8079 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
8080 struct lpfc_cq_event *cq_event)
8082 unsigned long iflags;
8083 spin_lock_irqsave(&phba->hbalock, iflags);
8084 __lpfc_sli4_cq_event_release(phba, cq_event);
8085 spin_unlock_irqrestore(&phba->hbalock, iflags);
8089 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
8090 * @phba: pointer to lpfc hba data structure.
8092 * This routine is to free all the pending completion-queue events to the
8093 * back into the free pool for device reset.
8096 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
8099 struct lpfc_cq_event *cqe;
8100 unsigned long iflags;
8102 /* Retrieve all the pending WCQEs from pending WCQE lists */
8103 spin_lock_irqsave(&phba->hbalock, iflags);
8104 /* Pending FCP XRI abort events */
8105 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
8107 /* Pending ELS XRI abort events */
8108 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
8110 /* Pending asynnc events */
8111 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
8113 spin_unlock_irqrestore(&phba->hbalock, iflags);
8115 while (!list_empty(&cqelist)) {
8116 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
8117 lpfc_sli4_cq_event_release(phba, cqe);
8122 * lpfc_pci_function_reset - Reset pci function.
8123 * @phba: pointer to lpfc hba data structure.
8125 * This routine is invoked to request a PCI function reset. It will destroys
8126 * all resources assigned to the PCI function which originates this request.
8130 * -ENOMEM - No available memory
8131 * -EIO - The mailbox failed to complete successfully.
8134 lpfc_pci_function_reset(struct lpfc_hba *phba)
8136 LPFC_MBOXQ_t *mboxq;
8137 uint32_t rc = 0, if_type;
8138 uint32_t shdr_status, shdr_add_status;
8140 uint32_t port_reset = 0;
8141 union lpfc_sli4_cfg_shdr *shdr;
8142 struct lpfc_register reg_data;
8145 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8147 case LPFC_SLI_INTF_IF_TYPE_0:
8148 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8151 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8152 "0494 Unable to allocate memory for "
8153 "issuing SLI_FUNCTION_RESET mailbox "
8158 /* Setup PCI function reset mailbox-ioctl command */
8159 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8160 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
8161 LPFC_SLI4_MBX_EMBED);
8162 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8163 shdr = (union lpfc_sli4_cfg_shdr *)
8164 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8165 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8166 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
8168 if (rc != MBX_TIMEOUT)
8169 mempool_free(mboxq, phba->mbox_mem_pool);
8170 if (shdr_status || shdr_add_status || rc) {
8171 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8172 "0495 SLI_FUNCTION_RESET mailbox "
8173 "failed with status x%x add_status x%x,"
8174 " mbx status x%x\n",
8175 shdr_status, shdr_add_status, rc);
8179 case LPFC_SLI_INTF_IF_TYPE_2:
8182 * Poll the Port Status Register and wait for RDY for
8183 * up to 30 seconds. If the port doesn't respond, treat
8186 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
8187 if (lpfc_readl(phba->sli4_hba.u.if_type2.
8188 STATUSregaddr, ®_data.word0)) {
8192 if (bf_get(lpfc_sliport_status_rdy, ®_data))
8197 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) {
8198 phba->work_status[0] = readl(
8199 phba->sli4_hba.u.if_type2.ERR1regaddr);
8200 phba->work_status[1] = readl(
8201 phba->sli4_hba.u.if_type2.ERR2regaddr);
8202 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8203 "2890 Port not ready, port status reg "
8204 "0x%x error 1=0x%x, error 2=0x%x\n",
8206 phba->work_status[0],
8207 phba->work_status[1]);
8214 * Reset the port now
8217 bf_set(lpfc_sliport_ctrl_end, ®_data,
8218 LPFC_SLIPORT_LITTLE_ENDIAN);
8219 bf_set(lpfc_sliport_ctrl_ip, ®_data,
8220 LPFC_SLIPORT_INIT_PORT);
8221 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
8224 pci_read_config_word(phba->pcidev,
8225 PCI_DEVICE_ID, &devid);
8230 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) {
8236 case LPFC_SLI_INTF_IF_TYPE_1:
8242 /* Catch the not-ready port failure after a port reset. */
8244 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8245 "3317 HBA not functional: IP Reset Failed "
8246 "try: echo fw_reset > board_mode\n");
8254 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
8255 * @phba: pointer to lpfc hba data structure.
8257 * This routine is invoked to set up the PCI device memory space for device
8258 * with SLI-4 interface spec.
8262 * other values - error
8265 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
8267 struct pci_dev *pdev;
8268 unsigned long bar0map_len, bar1map_len, bar2map_len;
8269 int error = -ENODEV;
8272 /* Obtain PCI device reference */
8276 pdev = phba->pcidev;
8278 /* Set the device DMA mask size */
8279 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
8280 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
8281 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
8282 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
8288 * The BARs and register set definitions and offset locations are
8289 * dependent on the if_type.
8291 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
8292 &phba->sli4_hba.sli_intf.word0)) {
8296 /* There is no SLI3 failback for SLI4 devices. */
8297 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
8298 LPFC_SLI_INTF_VALID) {
8299 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8300 "2894 SLI_INTF reg contents invalid "
8301 "sli_intf reg 0x%x\n",
8302 phba->sli4_hba.sli_intf.word0);
8306 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8308 * Get the bus address of SLI4 device Bar regions and the
8309 * number of bytes required by each mapping. The mapping of the
8310 * particular PCI BARs regions is dependent on the type of
8313 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
8314 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
8315 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
8318 * Map SLI4 PCI Config Space Register base to a kernel virtual
8321 phba->sli4_hba.conf_regs_memmap_p =
8322 ioremap(phba->pci_bar0_map, bar0map_len);
8323 if (!phba->sli4_hba.conf_regs_memmap_p) {
8324 dev_printk(KERN_ERR, &pdev->dev,
8325 "ioremap failed for SLI4 PCI config "
8329 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
8330 /* Set up BAR0 PCI config space register memory map */
8331 lpfc_sli4_bar0_register_memmap(phba, if_type);
8333 phba->pci_bar0_map = pci_resource_start(pdev, 1);
8334 bar0map_len = pci_resource_len(pdev, 1);
8335 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8336 dev_printk(KERN_ERR, &pdev->dev,
8337 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
8340 phba->sli4_hba.conf_regs_memmap_p =
8341 ioremap(phba->pci_bar0_map, bar0map_len);
8342 if (!phba->sli4_hba.conf_regs_memmap_p) {
8343 dev_printk(KERN_ERR, &pdev->dev,
8344 "ioremap failed for SLI4 PCI config "
8348 lpfc_sli4_bar0_register_memmap(phba, if_type);
8351 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8352 (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
8354 * Map SLI4 if type 0 HBA Control Register base to a kernel
8355 * virtual address and setup the registers.
8357 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
8358 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
8359 phba->sli4_hba.ctrl_regs_memmap_p =
8360 ioremap(phba->pci_bar1_map, bar1map_len);
8361 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
8362 dev_printk(KERN_ERR, &pdev->dev,
8363 "ioremap failed for SLI4 HBA control registers.\n");
8364 goto out_iounmap_conf;
8366 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
8367 lpfc_sli4_bar1_register_memmap(phba);
8370 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8371 (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
8373 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
8374 * virtual address and setup the registers.
8376 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
8377 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
8378 phba->sli4_hba.drbl_regs_memmap_p =
8379 ioremap(phba->pci_bar2_map, bar2map_len);
8380 if (!phba->sli4_hba.drbl_regs_memmap_p) {
8381 dev_printk(KERN_ERR, &pdev->dev,
8382 "ioremap failed for SLI4 HBA doorbell registers.\n");
8383 goto out_iounmap_ctrl;
8385 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
8386 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
8388 goto out_iounmap_all;
8394 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8396 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8398 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8404 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
8405 * @phba: pointer to lpfc hba data structure.
8407 * This routine is invoked to unset the PCI device memory space for device
8408 * with SLI-4 interface spec.
8411 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
8414 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8417 case LPFC_SLI_INTF_IF_TYPE_0:
8418 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8419 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8420 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8422 case LPFC_SLI_INTF_IF_TYPE_2:
8423 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8425 case LPFC_SLI_INTF_IF_TYPE_1:
8427 dev_printk(KERN_ERR, &phba->pcidev->dev,
8428 "FATAL - unsupported SLI4 interface type - %d\n",
8435 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
8436 * @phba: pointer to lpfc hba data structure.
8438 * This routine is invoked to enable the MSI-X interrupt vectors to device
8439 * with SLI-3 interface specs. The kernel function pci_enable_msix_exact()
8440 * is called to enable the MSI-X vectors. Note that pci_enable_msix_exact(),
8441 * once invoked, enables either all or nothing, depending on the current
8442 * availability of PCI vector resources. The device driver is responsible
8443 * for calling the individual request_irq() to register each MSI-X vector
8444 * with a interrupt handler, which is done in this function. Note that
8445 * later when device is unloading, the driver should always call free_irq()
8446 * on all MSI-X vectors it has done request_irq() on before calling
8447 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8448 * will be left with MSI-X enabled and leaks its vectors.
8452 * other values - error
8455 lpfc_sli_enable_msix(struct lpfc_hba *phba)
8460 /* Set up MSI-X multi-message vectors */
8461 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8462 phba->msix_entries[i].entry = i;
8464 /* Configure MSI-X capability structure */
8465 rc = pci_enable_msix_exact(phba->pcidev, phba->msix_entries,
8468 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8469 "0420 PCI enable MSI-X failed (%d)\n", rc);
8472 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8473 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8474 "0477 MSI-X entry[%d]: vector=x%x "
8476 phba->msix_entries[i].vector,
8477 phba->msix_entries[i].entry);
8479 * Assign MSI-X vectors to interrupt handlers
8482 /* vector-0 is associated to slow-path handler */
8483 rc = request_irq(phba->msix_entries[0].vector,
8484 &lpfc_sli_sp_intr_handler, 0,
8485 LPFC_SP_DRIVER_HANDLER_NAME, phba);
8487 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8488 "0421 MSI-X slow-path request_irq failed "
8493 /* vector-1 is associated to fast-path handler */
8494 rc = request_irq(phba->msix_entries[1].vector,
8495 &lpfc_sli_fp_intr_handler, 0,
8496 LPFC_FP_DRIVER_HANDLER_NAME, phba);
8499 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8500 "0429 MSI-X fast-path request_irq failed "
8506 * Configure HBA MSI-X attention conditions to messages
8508 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8512 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8513 "0474 Unable to allocate memory for issuing "
8514 "MBOX_CONFIG_MSI command\n");
8517 rc = lpfc_config_msi(phba, pmb);
8520 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8521 if (rc != MBX_SUCCESS) {
8522 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8523 "0351 Config MSI mailbox command failed, "
8524 "mbxCmd x%x, mbxStatus x%x\n",
8525 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8529 /* Free memory allocated for mailbox command */
8530 mempool_free(pmb, phba->mbox_mem_pool);
8534 /* Free memory allocated for mailbox command */
8535 mempool_free(pmb, phba->mbox_mem_pool);
8538 /* free the irq already requested */
8539 free_irq(phba->msix_entries[1].vector, phba);
8542 /* free the irq already requested */
8543 free_irq(phba->msix_entries[0].vector, phba);
8546 /* Unconfigure MSI-X capability structure */
8547 pci_disable_msix(phba->pcidev);
8554 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8555 * @phba: pointer to lpfc hba data structure.
8557 * This routine is invoked to release the MSI-X vectors and then disable the
8558 * MSI-X interrupt mode to device with SLI-3 interface spec.
8561 lpfc_sli_disable_msix(struct lpfc_hba *phba)
8565 /* Free up MSI-X multi-message vectors */
8566 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8567 free_irq(phba->msix_entries[i].vector, phba);
8569 pci_disable_msix(phba->pcidev);
8575 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8576 * @phba: pointer to lpfc hba data structure.
8578 * This routine is invoked to enable the MSI interrupt mode to device with
8579 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8580 * enable the MSI vector. The device driver is responsible for calling the
8581 * request_irq() to register MSI vector with a interrupt the handler, which
8582 * is done in this function.
8586 * other values - error
8589 lpfc_sli_enable_msi(struct lpfc_hba *phba)
8593 rc = pci_enable_msi(phba->pcidev);
8595 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8596 "0462 PCI enable MSI mode success.\n");
8598 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8599 "0471 PCI enable MSI mode failed (%d)\n", rc);
8603 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8604 0, LPFC_DRIVER_NAME, phba);
8606 pci_disable_msi(phba->pcidev);
8607 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8608 "0478 MSI request_irq failed (%d)\n", rc);
8614 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8615 * @phba: pointer to lpfc hba data structure.
8617 * This routine is invoked to disable the MSI interrupt mode to device with
8618 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8619 * done request_irq() on before calling pci_disable_msi(). Failure to do so
8620 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8624 lpfc_sli_disable_msi(struct lpfc_hba *phba)
8626 free_irq(phba->pcidev->irq, phba);
8627 pci_disable_msi(phba->pcidev);
8632 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8633 * @phba: pointer to lpfc hba data structure.
8635 * This routine is invoked to enable device interrupt and associate driver's
8636 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8637 * spec. Depends on the interrupt mode configured to the driver, the driver
8638 * will try to fallback from the configured interrupt mode to an interrupt
8639 * mode which is supported by the platform, kernel, and device in the order
8641 * MSI-X -> MSI -> IRQ.
8645 * other values - error
8648 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8650 uint32_t intr_mode = LPFC_INTR_ERROR;
8653 if (cfg_mode == 2) {
8654 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8655 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8657 /* Now, try to enable MSI-X interrupt mode */
8658 retval = lpfc_sli_enable_msix(phba);
8660 /* Indicate initialization to MSI-X mode */
8661 phba->intr_type = MSIX;
8667 /* Fallback to MSI if MSI-X initialization failed */
8668 if (cfg_mode >= 1 && phba->intr_type == NONE) {
8669 retval = lpfc_sli_enable_msi(phba);
8671 /* Indicate initialization to MSI mode */
8672 phba->intr_type = MSI;
8677 /* Fallback to INTx if both MSI-X/MSI initalization failed */
8678 if (phba->intr_type == NONE) {
8679 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8680 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8682 /* Indicate initialization to INTx mode */
8683 phba->intr_type = INTx;
8691 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8692 * @phba: pointer to lpfc hba data structure.
8694 * This routine is invoked to disable device interrupt and disassociate the
8695 * driver's interrupt handler(s) from interrupt vector(s) to device with
8696 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8697 * release the interrupt vector(s) for the message signaled interrupt.
8700 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8702 /* Disable the currently initialized interrupt mode */
8703 if (phba->intr_type == MSIX)
8704 lpfc_sli_disable_msix(phba);
8705 else if (phba->intr_type == MSI)
8706 lpfc_sli_disable_msi(phba);
8707 else if (phba->intr_type == INTx)
8708 free_irq(phba->pcidev->irq, phba);
8710 /* Reset interrupt management states */
8711 phba->intr_type = NONE;
8712 phba->sli.slistat.sli_intr = 0;
8718 * lpfc_find_next_cpu - Find next available CPU that matches the phys_id
8719 * @phba: pointer to lpfc hba data structure.
8721 * Find next available CPU to use for IRQ to CPU affinity.
8724 lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id)
8726 struct lpfc_vector_map_info *cpup;
8729 cpup = phba->sli4_hba.cpu_map;
8730 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8731 /* CPU must be online */
8732 if (cpu_online(cpu)) {
8733 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8734 (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) &&
8735 (cpup->phys_id == phys_id)) {
8743 * If we get here, we have used ALL CPUs for the specific
8744 * phys_id. Now we need to clear out lpfc_used_cpu and start
8748 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8749 if (lpfc_used_cpu[cpu] == phys_id)
8750 lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
8753 cpup = phba->sli4_hba.cpu_map;
8754 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8755 /* CPU must be online */
8756 if (cpu_online(cpu)) {
8757 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8758 (cpup->phys_id == phys_id)) {
8764 return LPFC_VECTOR_MAP_EMPTY;
8768 * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors
8769 * @phba: pointer to lpfc hba data structure.
8770 * @vectors: number of HBA vectors
8772 * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector
8773 * affinization across multple physical CPUs (numa nodes).
8774 * In addition, this routine will assign an IO channel for each CPU
8775 * to use when issuing I/Os.
8778 lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors)
8780 int i, idx, saved_chann, used_chann, cpu, phys_id;
8781 int max_phys_id, min_phys_id;
8782 int num_io_channel, first_cpu, chan;
8783 struct lpfc_vector_map_info *cpup;
8785 struct cpuinfo_x86 *cpuinfo;
8787 uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1];
8789 /* If there is no mapping, just return */
8790 if (!phba->cfg_fcp_cpu_map)
8793 /* Init cpu_map array */
8794 memset(phba->sli4_hba.cpu_map, 0xff,
8795 (sizeof(struct lpfc_vector_map_info) *
8796 phba->sli4_hba.num_present_cpu));
8802 first_cpu = LPFC_VECTOR_MAP_EMPTY;
8804 /* Update CPU map with physical id and core id of each CPU */
8805 cpup = phba->sli4_hba.cpu_map;
8806 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8808 cpuinfo = &cpu_data(cpu);
8809 cpup->phys_id = cpuinfo->phys_proc_id;
8810 cpup->core_id = cpuinfo->cpu_core_id;
8812 /* No distinction between CPUs for other platforms */
8817 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8818 "3328 CPU physid %d coreid %d\n",
8819 cpup->phys_id, cpup->core_id);
8821 if (cpup->phys_id > max_phys_id)
8822 max_phys_id = cpup->phys_id;
8823 if (cpup->phys_id < min_phys_id)
8824 min_phys_id = cpup->phys_id;
8828 phys_id = min_phys_id;
8829 /* Now associate the HBA vectors with specific CPUs */
8830 for (idx = 0; idx < vectors; idx++) {
8831 cpup = phba->sli4_hba.cpu_map;
8832 cpu = lpfc_find_next_cpu(phba, phys_id);
8833 if (cpu == LPFC_VECTOR_MAP_EMPTY) {
8835 /* Try for all phys_id's */
8836 for (i = 1; i < max_phys_id; i++) {
8838 if (phys_id > max_phys_id)
8839 phys_id = min_phys_id;
8840 cpu = lpfc_find_next_cpu(phba, phys_id);
8841 if (cpu == LPFC_VECTOR_MAP_EMPTY)
8846 /* Use round robin for scheduling */
8847 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN;
8849 cpup = phba->sli4_hba.cpu_map;
8850 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
8851 cpup->channel_id = chan;
8854 if (chan >= phba->cfg_fcp_io_channel)
8858 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8859 "3329 Cannot set affinity:"
8860 "Error mapping vector %d (%d)\n",
8866 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP)
8867 lpfc_used_cpu[cpu] = phys_id;
8869 /* Associate vector with selected CPU */
8870 cpup->irq = phba->sli4_hba.msix_entries[idx].vector;
8872 /* Associate IO channel with selected CPU */
8873 cpup->channel_id = idx;
8876 if (first_cpu == LPFC_VECTOR_MAP_EMPTY)
8879 /* Now affinitize to the selected CPU */
8880 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx].
8881 vector, get_cpu_mask(cpu));
8883 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8884 "3330 Set Affinity: CPU %d channel %d "
8886 cpu, cpup->channel_id,
8887 phba->sli4_hba.msix_entries[idx].vector, i);
8889 /* Spread vector mapping across multple physical CPU nodes */
8891 if (phys_id > max_phys_id)
8892 phys_id = min_phys_id;
8896 * Finally fill in the IO channel for any remaining CPUs.
8897 * At this point, all IO channels have been assigned to a specific
8898 * MSIx vector, mapped to a specific CPU.
8899 * Base the remaining IO channel assigned, to IO channels already
8900 * assigned to other CPUs on the same phys_id.
8902 for (i = min_phys_id; i <= max_phys_id; i++) {
8904 * If there are no io channels already mapped to
8905 * this phys_id, just round robin thru the io_channels.
8906 * Setup chann[] for round robin.
8908 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8915 * First build a list of IO channels already assigned
8916 * to this phys_id before reassigning the same IO
8917 * channels to the remaining CPUs.
8919 cpup = phba->sli4_hba.cpu_map;
8922 for (idx = 0; idx < phba->sli4_hba.num_present_cpu;
8924 if (cpup->phys_id == i) {
8926 * Save any IO channels that are
8927 * already mapped to this phys_id.
8929 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
8931 LPFC_FCP_IO_CHAN_MAX) {
8932 chann[saved_chann] =
8939 /* See if we are using round-robin */
8940 if (saved_chann == 0)
8942 phba->cfg_fcp_io_channel;
8944 /* Associate next IO channel with CPU */
8945 cpup->channel_id = chann[used_chann];
8948 if (used_chann == saved_chann)
8951 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8952 "3331 Set IO_CHANN "
8953 "CPU %d channel %d\n",
8954 idx, cpup->channel_id);
8958 if (cpu >= phba->sli4_hba.num_present_cpu) {
8959 cpup = phba->sli4_hba.cpu_map;
8967 if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) {
8968 cpup = phba->sli4_hba.cpu_map;
8969 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) {
8970 if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) {
8971 cpup->channel_id = 0;
8974 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8975 "3332 Assign IO_CHANN "
8976 "CPU %d channel %d\n",
8977 idx, cpup->channel_id);
8984 if (num_io_channel != phba->sli4_hba.num_present_cpu)
8985 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8986 "3333 Set affinity mismatch:"
8987 "%d chann != %d cpus: %d vectors\n",
8988 num_io_channel, phba->sli4_hba.num_present_cpu,
8991 /* Enable using cpu affinity for scheduling */
8992 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU;
8998 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8999 * @phba: pointer to lpfc hba data structure.
9001 * This routine is invoked to enable the MSI-X interrupt vectors to device
9002 * with SLI-4 interface spec. The kernel function pci_enable_msix_range()
9003 * is called to enable the MSI-X vectors. The device driver is responsible
9004 * for calling the individual request_irq() to register each MSI-X vector
9005 * with a interrupt handler, which is done in this function. Note that
9006 * later when device is unloading, the driver should always call free_irq()
9007 * on all MSI-X vectors it has done request_irq() on before calling
9008 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
9009 * will be left with MSI-X enabled and leaks its vectors.
9013 * other values - error
9016 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
9018 int vectors, rc, index;
9020 /* Set up MSI-X multi-message vectors */
9021 for (index = 0; index < phba->cfg_fcp_io_channel; index++)
9022 phba->sli4_hba.msix_entries[index].entry = index;
9024 /* Configure MSI-X capability structure */
9025 vectors = phba->cfg_fcp_io_channel;
9026 if (phba->cfg_fof) {
9027 phba->sli4_hba.msix_entries[index].entry = index;
9030 rc = pci_enable_msix_range(phba->pcidev, phba->sli4_hba.msix_entries,
9033 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9034 "0484 PCI enable MSI-X failed (%d)\n", rc);
9039 /* Log MSI-X vector assignment */
9040 for (index = 0; index < vectors; index++)
9041 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9042 "0489 MSI-X entry[%d]: vector=x%x "
9043 "message=%d\n", index,
9044 phba->sli4_hba.msix_entries[index].vector,
9045 phba->sli4_hba.msix_entries[index].entry);
9047 /* Assign MSI-X vectors to interrupt handlers */
9048 for (index = 0; index < vectors; index++) {
9049 memset(&phba->sli4_hba.handler_name[index], 0, 16);
9050 snprintf((char *)&phba->sli4_hba.handler_name[index],
9051 LPFC_SLI4_HANDLER_NAME_SZ,
9052 LPFC_DRIVER_HANDLER_NAME"%d", index);
9054 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9055 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9056 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
9057 if (phba->cfg_fof && (index == (vectors - 1)))
9059 phba->sli4_hba.msix_entries[index].vector,
9060 &lpfc_sli4_fof_intr_handler, 0,
9061 (char *)&phba->sli4_hba.handler_name[index],
9062 &phba->sli4_hba.fcp_eq_hdl[index]);
9065 phba->sli4_hba.msix_entries[index].vector,
9066 &lpfc_sli4_hba_intr_handler, 0,
9067 (char *)&phba->sli4_hba.handler_name[index],
9068 &phba->sli4_hba.fcp_eq_hdl[index]);
9070 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9071 "0486 MSI-X fast-path (%d) "
9072 "request_irq failed (%d)\n", index, rc);
9080 if (vectors != phba->cfg_fcp_io_channel) {
9081 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9082 "3238 Reducing IO channels to match number of "
9083 "MSI-X vectors, requested %d got %d\n",
9084 phba->cfg_fcp_io_channel, vectors);
9085 phba->cfg_fcp_io_channel = vectors;
9088 if (!shost_use_blk_mq(lpfc_shost_from_vport(phba->pport)))
9089 lpfc_sli4_set_affinity(phba, vectors);
9093 /* free the irq already requested */
9094 for (--index; index >= 0; index--) {
9095 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
9097 free_irq(phba->sli4_hba.msix_entries[index].vector,
9098 &phba->sli4_hba.fcp_eq_hdl[index]);
9101 /* Unconfigure MSI-X capability structure */
9102 pci_disable_msix(phba->pcidev);
9109 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
9110 * @phba: pointer to lpfc hba data structure.
9112 * This routine is invoked to release the MSI-X vectors and then disable the
9113 * MSI-X interrupt mode to device with SLI-4 interface spec.
9116 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
9120 /* Free up MSI-X multi-message vectors */
9121 for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9122 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
9124 free_irq(phba->sli4_hba.msix_entries[index].vector,
9125 &phba->sli4_hba.fcp_eq_hdl[index]);
9127 if (phba->cfg_fof) {
9128 free_irq(phba->sli4_hba.msix_entries[index].vector,
9129 &phba->sli4_hba.fcp_eq_hdl[index]);
9132 pci_disable_msix(phba->pcidev);
9138 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
9139 * @phba: pointer to lpfc hba data structure.
9141 * This routine is invoked to enable the MSI interrupt mode to device with
9142 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
9143 * to enable the MSI vector. The device driver is responsible for calling
9144 * the request_irq() to register MSI vector with a interrupt the handler,
9145 * which is done in this function.
9149 * other values - error
9152 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
9156 rc = pci_enable_msi(phba->pcidev);
9158 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9159 "0487 PCI enable MSI mode success.\n");
9161 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9162 "0488 PCI enable MSI mode failed (%d)\n", rc);
9166 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9167 0, LPFC_DRIVER_NAME, phba);
9169 pci_disable_msi(phba->pcidev);
9170 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9171 "0490 MSI request_irq failed (%d)\n", rc);
9175 for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9176 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9177 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9180 if (phba->cfg_fof) {
9181 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9182 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9188 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
9189 * @phba: pointer to lpfc hba data structure.
9191 * This routine is invoked to disable the MSI interrupt mode to device with
9192 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
9193 * done request_irq() on before calling pci_disable_msi(). Failure to do so
9194 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
9198 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
9200 free_irq(phba->pcidev->irq, phba);
9201 pci_disable_msi(phba->pcidev);
9206 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
9207 * @phba: pointer to lpfc hba data structure.
9209 * This routine is invoked to enable device interrupt and associate driver's
9210 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
9211 * interface spec. Depends on the interrupt mode configured to the driver,
9212 * the driver will try to fallback from the configured interrupt mode to an
9213 * interrupt mode which is supported by the platform, kernel, and device in
9215 * MSI-X -> MSI -> IRQ.
9219 * other values - error
9222 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9224 uint32_t intr_mode = LPFC_INTR_ERROR;
9227 if (cfg_mode == 2) {
9228 /* Preparation before conf_msi mbox cmd */
9231 /* Now, try to enable MSI-X interrupt mode */
9232 retval = lpfc_sli4_enable_msix(phba);
9234 /* Indicate initialization to MSI-X mode */
9235 phba->intr_type = MSIX;
9241 /* Fallback to MSI if MSI-X initialization failed */
9242 if (cfg_mode >= 1 && phba->intr_type == NONE) {
9243 retval = lpfc_sli4_enable_msi(phba);
9245 /* Indicate initialization to MSI mode */
9246 phba->intr_type = MSI;
9251 /* Fallback to INTx if both MSI-X/MSI initalization failed */
9252 if (phba->intr_type == NONE) {
9253 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9254 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9256 /* Indicate initialization to INTx mode */
9257 phba->intr_type = INTx;
9259 for (index = 0; index < phba->cfg_fcp_io_channel;
9261 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9262 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9263 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9266 if (phba->cfg_fof) {
9267 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9268 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9269 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9278 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
9279 * @phba: pointer to lpfc hba data structure.
9281 * This routine is invoked to disable device interrupt and disassociate
9282 * the driver's interrupt handler(s) from interrupt vector(s) to device
9283 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
9284 * will release the interrupt vector(s) for the message signaled interrupt.
9287 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
9289 /* Disable the currently initialized interrupt mode */
9290 if (phba->intr_type == MSIX)
9291 lpfc_sli4_disable_msix(phba);
9292 else if (phba->intr_type == MSI)
9293 lpfc_sli4_disable_msi(phba);
9294 else if (phba->intr_type == INTx)
9295 free_irq(phba->pcidev->irq, phba);
9297 /* Reset interrupt management states */
9298 phba->intr_type = NONE;
9299 phba->sli.slistat.sli_intr = 0;
9305 * lpfc_unset_hba - Unset SLI3 hba device initialization
9306 * @phba: pointer to lpfc hba data structure.
9308 * This routine is invoked to unset the HBA device initialization steps to
9309 * a device with SLI-3 interface spec.
9312 lpfc_unset_hba(struct lpfc_hba *phba)
9314 struct lpfc_vport *vport = phba->pport;
9315 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
9317 spin_lock_irq(shost->host_lock);
9318 vport->load_flag |= FC_UNLOADING;
9319 spin_unlock_irq(shost->host_lock);
9321 kfree(phba->vpi_bmask);
9322 kfree(phba->vpi_ids);
9324 lpfc_stop_hba_timers(phba);
9326 phba->pport->work_port_events = 0;
9328 lpfc_sli_hba_down(phba);
9330 lpfc_sli_brdrestart(phba);
9332 lpfc_sli_disable_intr(phba);
9338 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
9339 * @phba: Pointer to HBA context object.
9341 * This function is called in the SLI4 code path to wait for completion
9342 * of device's XRIs exchange busy. It will check the XRI exchange busy
9343 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
9344 * that, it will check the XRI exchange busy on outstanding FCP and ELS
9345 * I/Os every 30 seconds, log error message, and wait forever. Only when
9346 * all XRI exchange busy complete, the driver unload shall proceed with
9347 * invoking the function reset ioctl mailbox command to the CNA and the
9348 * the rest of the driver unload resource release.
9351 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
9354 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9355 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9357 while (!fcp_xri_cmpl || !els_xri_cmpl) {
9358 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
9360 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9361 "2877 FCP XRI exchange busy "
9362 "wait time: %d seconds.\n",
9365 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9366 "2878 ELS XRI exchange busy "
9367 "wait time: %d seconds.\n",
9369 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
9370 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
9372 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
9373 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
9376 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9378 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9383 * lpfc_sli4_hba_unset - Unset the fcoe hba
9384 * @phba: Pointer to HBA context object.
9386 * This function is called in the SLI4 code path to reset the HBA's FCoE
9387 * function. The caller is not required to hold any lock. This routine
9388 * issues PCI function reset mailbox command to reset the FCoE function.
9389 * At the end of the function, it calls lpfc_hba_down_post function to
9390 * free any pending commands.
9393 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
9396 LPFC_MBOXQ_t *mboxq;
9397 struct pci_dev *pdev = phba->pcidev;
9399 lpfc_stop_hba_timers(phba);
9400 phba->sli4_hba.intr_enable = 0;
9403 * Gracefully wait out the potential current outstanding asynchronous
9407 /* First, block any pending async mailbox command from posted */
9408 spin_lock_irq(&phba->hbalock);
9409 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
9410 spin_unlock_irq(&phba->hbalock);
9411 /* Now, trying to wait it out if we can */
9412 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9414 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
9417 /* Forcefully release the outstanding mailbox command if timed out */
9418 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9419 spin_lock_irq(&phba->hbalock);
9420 mboxq = phba->sli.mbox_active;
9421 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
9422 __lpfc_mbox_cmpl_put(phba, mboxq);
9423 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9424 phba->sli.mbox_active = NULL;
9425 spin_unlock_irq(&phba->hbalock);
9428 /* Abort all iocbs associated with the hba */
9429 lpfc_sli_hba_iocb_abort(phba);
9431 /* Wait for completion of device XRI exchange busy */
9432 lpfc_sli4_xri_exchange_busy_wait(phba);
9434 /* Disable PCI subsystem interrupt */
9435 lpfc_sli4_disable_intr(phba);
9437 /* Disable SR-IOV if enabled */
9438 if (phba->cfg_sriov_nr_virtfn)
9439 pci_disable_sriov(pdev);
9441 /* Stop kthread signal shall trigger work_done one more time */
9442 kthread_stop(phba->worker_thread);
9444 /* Reset SLI4 HBA FCoE function */
9445 lpfc_pci_function_reset(phba);
9446 lpfc_sli4_queue_destroy(phba);
9448 /* Stop the SLI4 device port */
9449 phba->pport->work_port_events = 0;
9453 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
9454 * @phba: Pointer to HBA context object.
9455 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9457 * This function is called in the SLI4 code path to read the port's
9458 * sli4 capabilities.
9460 * This function may be be called from any context that can block-wait
9461 * for the completion. The expectation is that this routine is called
9462 * typically from probe_one or from the online routine.
9465 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9468 struct lpfc_mqe *mqe;
9469 struct lpfc_pc_sli4_params *sli4_params;
9473 mqe = &mboxq->u.mqe;
9475 /* Read the port's SLI4 Parameters port capabilities */
9476 lpfc_pc_sli4_params(mboxq);
9477 if (!phba->sli4_hba.intr_enable)
9478 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9480 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9481 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9487 sli4_params = &phba->sli4_hba.pc_sli4_params;
9488 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
9489 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
9490 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
9491 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
9492 &mqe->un.sli4_params);
9493 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
9494 &mqe->un.sli4_params);
9495 sli4_params->proto_types = mqe->un.sli4_params.word3;
9496 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
9497 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
9498 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
9499 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
9500 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
9501 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
9502 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
9503 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
9504 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
9505 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
9506 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
9507 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
9508 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
9509 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
9510 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
9511 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
9512 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
9513 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
9514 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
9515 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
9517 /* Make sure that sge_supp_len can be handled by the driver */
9518 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9519 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9525 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
9526 * @phba: Pointer to HBA context object.
9527 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9529 * This function is called in the SLI4 code path to read the port's
9530 * sli4 capabilities.
9532 * This function may be be called from any context that can block-wait
9533 * for the completion. The expectation is that this routine is called
9534 * typically from probe_one or from the online routine.
9537 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9540 struct lpfc_mqe *mqe = &mboxq->u.mqe;
9541 struct lpfc_pc_sli4_params *sli4_params;
9544 struct lpfc_sli4_parameters *mbx_sli4_parameters;
9547 * By default, the driver assumes the SLI4 port requires RPI
9548 * header postings. The SLI4_PARAM response will correct this
9551 phba->sli4_hba.rpi_hdrs_in_use = 1;
9553 /* Read the port's SLI4 Config Parameters */
9554 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
9555 sizeof(struct lpfc_sli4_cfg_mhdr));
9556 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9557 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
9558 length, LPFC_SLI4_MBX_EMBED);
9559 if (!phba->sli4_hba.intr_enable)
9560 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9562 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9563 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9567 sli4_params = &phba->sli4_hba.pc_sli4_params;
9568 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
9569 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
9570 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
9571 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
9572 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
9573 mbx_sli4_parameters);
9574 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
9575 mbx_sli4_parameters);
9576 if (bf_get(cfg_phwq, mbx_sli4_parameters))
9577 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
9579 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
9580 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
9581 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
9582 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
9583 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
9584 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
9585 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
9586 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
9587 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
9588 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
9589 mbx_sli4_parameters);
9590 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
9591 mbx_sli4_parameters);
9592 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
9593 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
9595 /* Make sure that sge_supp_len can be handled by the driver */
9596 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9597 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9600 * Issue IOs with CDB embedded in WQE to minimized the number
9601 * of DMAs the firmware has to do. Setting this to 1 also forces
9602 * the driver to use 128 bytes WQEs for FCP IOs.
9604 if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
9605 phba->fcp_embed_io = 1;
9607 phba->fcp_embed_io = 0;
9610 * Check if the SLI port supports MDS Diagnostics
9612 if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
9613 phba->mds_diags_support = 1;
9615 phba->mds_diags_support = 0;
9620 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
9621 * @pdev: pointer to PCI device
9622 * @pid: pointer to PCI device identifier
9624 * This routine is to be called to attach a device with SLI-3 interface spec
9625 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9626 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9627 * information of the device and driver to see if the driver state that it can
9628 * support this kind of device. If the match is successful, the driver core
9629 * invokes this routine. If this routine determines it can claim the HBA, it
9630 * does all the initialization that it needs to do to handle the HBA properly.
9633 * 0 - driver can claim the device
9634 * negative value - driver can not claim the device
9637 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
9639 struct lpfc_hba *phba;
9640 struct lpfc_vport *vport = NULL;
9641 struct Scsi_Host *shost = NULL;
9643 uint32_t cfg_mode, intr_mode;
9645 /* Allocate memory for HBA structure */
9646 phba = lpfc_hba_alloc(pdev);
9650 /* Perform generic PCI device enabling operation */
9651 error = lpfc_enable_pci_dev(phba);
9655 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
9656 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
9658 goto out_disable_pci_dev;
9660 /* Set up SLI-3 specific device PCI memory space */
9661 error = lpfc_sli_pci_mem_setup(phba);
9663 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9664 "1402 Failed to set up pci memory space.\n");
9665 goto out_disable_pci_dev;
9668 /* Set up phase-1 common device driver resources */
9669 error = lpfc_setup_driver_resource_phase1(phba);
9671 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9672 "1403 Failed to set up driver resource.\n");
9673 goto out_unset_pci_mem_s3;
9676 /* Set up SLI-3 specific device driver resources */
9677 error = lpfc_sli_driver_resource_setup(phba);
9679 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9680 "1404 Failed to set up driver resource.\n");
9681 goto out_unset_pci_mem_s3;
9684 /* Initialize and populate the iocb list per host */
9685 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
9687 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9688 "1405 Failed to initialize iocb list.\n");
9689 goto out_unset_driver_resource_s3;
9692 /* Set up common device driver resources */
9693 error = lpfc_setup_driver_resource_phase2(phba);
9695 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9696 "1406 Failed to set up driver resource.\n");
9697 goto out_free_iocb_list;
9700 /* Get the default values for Model Name and Description */
9701 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9703 /* Create SCSI host to the physical port */
9704 error = lpfc_create_shost(phba);
9706 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9707 "1407 Failed to create scsi host.\n");
9708 goto out_unset_driver_resource;
9711 /* Configure sysfs attributes */
9712 vport = phba->pport;
9713 error = lpfc_alloc_sysfs_attr(vport);
9715 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9716 "1476 Failed to allocate sysfs attr\n");
9717 goto out_destroy_shost;
9720 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9721 /* Now, trying to enable interrupt and bring up the device */
9722 cfg_mode = phba->cfg_use_msi;
9724 /* Put device to a known state before enabling interrupt */
9725 lpfc_stop_port(phba);
9726 /* Configure and enable interrupt */
9727 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
9728 if (intr_mode == LPFC_INTR_ERROR) {
9729 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9730 "0431 Failed to enable interrupt.\n");
9732 goto out_free_sysfs_attr;
9734 /* SLI-3 HBA setup */
9735 if (lpfc_sli_hba_setup(phba)) {
9736 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9737 "1477 Failed to set up hba\n");
9739 goto out_remove_device;
9742 /* Wait 50ms for the interrupts of previous mailbox commands */
9744 /* Check active interrupts on message signaled interrupts */
9745 if (intr_mode == 0 ||
9746 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
9747 /* Log the current active interrupt mode */
9748 phba->intr_mode = intr_mode;
9749 lpfc_log_intr_mode(phba, intr_mode);
9752 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9753 "0447 Configure interrupt mode (%d) "
9754 "failed active interrupt test.\n",
9756 /* Disable the current interrupt mode */
9757 lpfc_sli_disable_intr(phba);
9758 /* Try next level of interrupt mode */
9759 cfg_mode = --intr_mode;
9763 /* Perform post initialization setup */
9764 lpfc_post_init_setup(phba);
9766 /* Check if there are static vports to be created. */
9767 lpfc_create_static_vport(phba);
9772 lpfc_unset_hba(phba);
9773 out_free_sysfs_attr:
9774 lpfc_free_sysfs_attr(vport);
9776 lpfc_destroy_shost(phba);
9777 out_unset_driver_resource:
9778 lpfc_unset_driver_resource_phase2(phba);
9780 lpfc_free_iocb_list(phba);
9781 out_unset_driver_resource_s3:
9782 lpfc_sli_driver_resource_unset(phba);
9783 out_unset_pci_mem_s3:
9784 lpfc_sli_pci_mem_unset(phba);
9785 out_disable_pci_dev:
9786 lpfc_disable_pci_dev(phba);
9788 scsi_host_put(shost);
9790 lpfc_hba_free(phba);
9795 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
9796 * @pdev: pointer to PCI device
9798 * This routine is to be called to disattach a device with SLI-3 interface
9799 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9800 * removed from PCI bus, it performs all the necessary cleanup for the HBA
9801 * device to be removed from the PCI subsystem properly.
9804 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
9806 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9807 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9808 struct lpfc_vport **vports;
9809 struct lpfc_hba *phba = vport->phba;
9812 spin_lock_irq(&phba->hbalock);
9813 vport->load_flag |= FC_UNLOADING;
9814 spin_unlock_irq(&phba->hbalock);
9816 lpfc_free_sysfs_attr(vport);
9818 /* Release all the vports against this physical port */
9819 vports = lpfc_create_vport_work_array(phba);
9821 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9822 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9824 fc_vport_terminate(vports[i]->fc_vport);
9826 lpfc_destroy_vport_work_array(phba, vports);
9828 /* Remove FC host and then SCSI host with the physical port */
9829 fc_remove_host(shost);
9830 scsi_remove_host(shost);
9831 lpfc_cleanup(vport);
9834 * Bring down the SLI Layer. This step disable all interrupts,
9835 * clears the rings, discards all mailbox commands, and resets
9839 /* HBA interrupt will be disabled after this call */
9840 lpfc_sli_hba_down(phba);
9841 /* Stop kthread signal shall trigger work_done one more time */
9842 kthread_stop(phba->worker_thread);
9843 /* Final cleanup of txcmplq and reset the HBA */
9844 lpfc_sli_brdrestart(phba);
9846 kfree(phba->vpi_bmask);
9847 kfree(phba->vpi_ids);
9849 lpfc_stop_hba_timers(phba);
9850 spin_lock_irq(&phba->hbalock);
9851 list_del_init(&vport->listentry);
9852 spin_unlock_irq(&phba->hbalock);
9854 lpfc_debugfs_terminate(vport);
9856 /* Disable SR-IOV if enabled */
9857 if (phba->cfg_sriov_nr_virtfn)
9858 pci_disable_sriov(pdev);
9860 /* Disable interrupt */
9861 lpfc_sli_disable_intr(phba);
9863 scsi_host_put(shost);
9866 * Call scsi_free before mem_free since scsi bufs are released to their
9867 * corresponding pools here.
9869 lpfc_scsi_free(phba);
9870 lpfc_mem_free_all(phba);
9872 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9873 phba->hbqslimp.virt, phba->hbqslimp.phys);
9875 /* Free resources associated with SLI2 interface */
9876 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9877 phba->slim2p.virt, phba->slim2p.phys);
9879 /* unmap adapter SLIM and Control Registers */
9880 iounmap(phba->ctrl_regs_memmap_p);
9881 iounmap(phba->slim_memmap_p);
9883 lpfc_hba_free(phba);
9885 pci_release_mem_regions(pdev);
9886 pci_disable_device(pdev);
9890 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9891 * @pdev: pointer to PCI device
9892 * @msg: power management message
9894 * This routine is to be called from the kernel's PCI subsystem to support
9895 * system Power Management (PM) to device with SLI-3 interface spec. When
9896 * PM invokes this method, it quiesces the device by stopping the driver's
9897 * worker thread for the device, turning off device's interrupt and DMA,
9898 * and bring the device offline. Note that as the driver implements the
9899 * minimum PM requirements to a power-aware driver's PM support for the
9900 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9901 * to the suspend() method call will be treated as SUSPEND and the driver will
9902 * fully reinitialize its device during resume() method call, the driver will
9903 * set device to PCI_D3hot state in PCI config space instead of setting it
9904 * according to the @msg provided by the PM.
9907 * 0 - driver suspended the device
9911 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9913 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9914 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9916 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9917 "0473 PCI device Power Management suspend.\n");
9919 /* Bring down the device */
9920 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9922 kthread_stop(phba->worker_thread);
9924 /* Disable interrupt from device */
9925 lpfc_sli_disable_intr(phba);
9927 /* Save device state to PCI config space */
9928 pci_save_state(pdev);
9929 pci_set_power_state(pdev, PCI_D3hot);
9935 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9936 * @pdev: pointer to PCI device
9938 * This routine is to be called from the kernel's PCI subsystem to support
9939 * system Power Management (PM) to device with SLI-3 interface spec. When PM
9940 * invokes this method, it restores the device's PCI config space state and
9941 * fully reinitializes the device and brings it online. Note that as the
9942 * driver implements the minimum PM requirements to a power-aware driver's
9943 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9944 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9945 * driver will fully reinitialize its device during resume() method call,
9946 * the device will be set to PCI_D0 directly in PCI config space before
9947 * restoring the state.
9950 * 0 - driver suspended the device
9954 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9956 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9957 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9961 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9962 "0452 PCI device Power Management resume.\n");
9964 /* Restore device state from PCI config space */
9965 pci_set_power_state(pdev, PCI_D0);
9966 pci_restore_state(pdev);
9969 * As the new kernel behavior of pci_restore_state() API call clears
9970 * device saved_state flag, need to save the restored state again.
9972 pci_save_state(pdev);
9974 if (pdev->is_busmaster)
9975 pci_set_master(pdev);
9977 /* Startup the kernel thread for this host adapter. */
9978 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9979 "lpfc_worker_%d", phba->brd_no);
9980 if (IS_ERR(phba->worker_thread)) {
9981 error = PTR_ERR(phba->worker_thread);
9982 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9983 "0434 PM resume failed to start worker "
9984 "thread: error=x%x.\n", error);
9988 /* Configure and enable interrupt */
9989 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9990 if (intr_mode == LPFC_INTR_ERROR) {
9991 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9992 "0430 PM resume Failed to enable interrupt\n");
9995 phba->intr_mode = intr_mode;
9997 /* Restart HBA and bring it online */
9998 lpfc_sli_brdrestart(phba);
10001 /* Log the current active interrupt mode */
10002 lpfc_log_intr_mode(phba, phba->intr_mode);
10008 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
10009 * @phba: pointer to lpfc hba data structure.
10011 * This routine is called to prepare the SLI3 device for PCI slot recover. It
10012 * aborts all the outstanding SCSI I/Os to the pci device.
10015 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
10017 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10018 "2723 PCI channel I/O abort preparing for recovery\n");
10021 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10022 * and let the SCSI mid-layer to retry them to recover.
10024 lpfc_sli_abort_fcp_rings(phba);
10028 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
10029 * @phba: pointer to lpfc hba data structure.
10031 * This routine is called to prepare the SLI3 device for PCI slot reset. It
10032 * disables the device interrupt and pci device, and aborts the internal FCP
10036 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
10038 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10039 "2710 PCI channel disable preparing for reset\n");
10041 /* Block any management I/Os to the device */
10042 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
10044 /* Block all SCSI devices' I/Os on the host */
10045 lpfc_scsi_dev_block(phba);
10047 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10048 lpfc_sli_flush_fcp_rings(phba);
10050 /* stop all timers */
10051 lpfc_stop_hba_timers(phba);
10053 /* Disable interrupt and pci device */
10054 lpfc_sli_disable_intr(phba);
10055 pci_disable_device(phba->pcidev);
10059 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
10060 * @phba: pointer to lpfc hba data structure.
10062 * This routine is called to prepare the SLI3 device for PCI slot permanently
10063 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10067 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10069 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10070 "2711 PCI channel permanent disable for failure\n");
10071 /* Block all SCSI devices' I/Os on the host */
10072 lpfc_scsi_dev_block(phba);
10074 /* stop all timers */
10075 lpfc_stop_hba_timers(phba);
10077 /* Clean up all driver's outstanding SCSI I/Os */
10078 lpfc_sli_flush_fcp_rings(phba);
10082 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
10083 * @pdev: pointer to PCI device.
10084 * @state: the current PCI connection state.
10086 * This routine is called from the PCI subsystem for I/O error handling to
10087 * device with SLI-3 interface spec. This function is called by the PCI
10088 * subsystem after a PCI bus error affecting this device has been detected.
10089 * When this function is invoked, it will need to stop all the I/Os and
10090 * interrupt(s) to the device. Once that is done, it will return
10091 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
10095 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
10096 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10097 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10099 static pci_ers_result_t
10100 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
10102 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10103 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10106 case pci_channel_io_normal:
10107 /* Non-fatal error, prepare for recovery */
10108 lpfc_sli_prep_dev_for_recover(phba);
10109 return PCI_ERS_RESULT_CAN_RECOVER;
10110 case pci_channel_io_frozen:
10111 /* Fatal error, prepare for slot reset */
10112 lpfc_sli_prep_dev_for_reset(phba);
10113 return PCI_ERS_RESULT_NEED_RESET;
10114 case pci_channel_io_perm_failure:
10115 /* Permanent failure, prepare for device down */
10116 lpfc_sli_prep_dev_for_perm_failure(phba);
10117 return PCI_ERS_RESULT_DISCONNECT;
10119 /* Unknown state, prepare and request slot reset */
10120 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10121 "0472 Unknown PCI error state: x%x\n", state);
10122 lpfc_sli_prep_dev_for_reset(phba);
10123 return PCI_ERS_RESULT_NEED_RESET;
10128 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
10129 * @pdev: pointer to PCI device.
10131 * This routine is called from the PCI subsystem for error handling to
10132 * device with SLI-3 interface spec. This is called after PCI bus has been
10133 * reset to restart the PCI card from scratch, as if from a cold-boot.
10134 * During the PCI subsystem error recovery, after driver returns
10135 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10136 * recovery and then call this routine before calling the .resume method
10137 * to recover the device. This function will initialize the HBA device,
10138 * enable the interrupt, but it will just put the HBA to offline state
10139 * without passing any I/O traffic.
10142 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10143 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10145 static pci_ers_result_t
10146 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
10148 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10149 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10150 struct lpfc_sli *psli = &phba->sli;
10151 uint32_t intr_mode;
10153 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10154 if (pci_enable_device_mem(pdev)) {
10155 printk(KERN_ERR "lpfc: Cannot re-enable "
10156 "PCI device after reset.\n");
10157 return PCI_ERS_RESULT_DISCONNECT;
10160 pci_restore_state(pdev);
10163 * As the new kernel behavior of pci_restore_state() API call clears
10164 * device saved_state flag, need to save the restored state again.
10166 pci_save_state(pdev);
10168 if (pdev->is_busmaster)
10169 pci_set_master(pdev);
10171 spin_lock_irq(&phba->hbalock);
10172 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10173 spin_unlock_irq(&phba->hbalock);
10175 /* Configure and enable interrupt */
10176 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10177 if (intr_mode == LPFC_INTR_ERROR) {
10178 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10179 "0427 Cannot re-enable interrupt after "
10181 return PCI_ERS_RESULT_DISCONNECT;
10183 phba->intr_mode = intr_mode;
10185 /* Take device offline, it will perform cleanup */
10186 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10187 lpfc_offline(phba);
10188 lpfc_sli_brdrestart(phba);
10190 /* Log the current active interrupt mode */
10191 lpfc_log_intr_mode(phba, phba->intr_mode);
10193 return PCI_ERS_RESULT_RECOVERED;
10197 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
10198 * @pdev: pointer to PCI device
10200 * This routine is called from the PCI subsystem for error handling to device
10201 * with SLI-3 interface spec. It is called when kernel error recovery tells
10202 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10203 * error recovery. After this call, traffic can start to flow from this device
10207 lpfc_io_resume_s3(struct pci_dev *pdev)
10209 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10210 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10212 /* Bring device online, it will be no-op for non-fatal error resume */
10215 /* Clean up Advanced Error Reporting (AER) if needed */
10216 if (phba->hba_flag & HBA_AER_ENABLED)
10217 pci_cleanup_aer_uncorrect_error_status(pdev);
10221 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
10222 * @phba: pointer to lpfc hba data structure.
10224 * returns the number of ELS/CT IOCBs to reserve
10227 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
10229 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
10231 if (phba->sli_rev == LPFC_SLI_REV4) {
10232 if (max_xri <= 100)
10234 else if (max_xri <= 256)
10236 else if (max_xri <= 512)
10238 else if (max_xri <= 1024)
10240 else if (max_xri <= 1536)
10242 else if (max_xri <= 2048)
10251 * lpfc_write_firmware - attempt to write a firmware image to the port
10252 * @fw: pointer to firmware image returned from request_firmware.
10253 * @phba: pointer to lpfc hba data structure.
10257 lpfc_write_firmware(const struct firmware *fw, void *context)
10259 struct lpfc_hba *phba = (struct lpfc_hba *)context;
10260 char fwrev[FW_REV_STR_SIZE];
10261 struct lpfc_grp_hdr *image;
10262 struct list_head dma_buffer_list;
10264 struct lpfc_dmabuf *dmabuf, *next;
10265 uint32_t offset = 0, temp_offset = 0;
10267 /* It can be null in no-wait mode, sanity check */
10272 image = (struct lpfc_grp_hdr *)fw->data;
10274 INIT_LIST_HEAD(&dma_buffer_list);
10275 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
10276 (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
10277 LPFC_FILE_TYPE_GROUP) ||
10278 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
10279 (be32_to_cpu(image->size) != fw->size)) {
10280 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10281 "3022 Invalid FW image found. "
10282 "Magic:%x Type:%x ID:%x\n",
10283 be32_to_cpu(image->magic_number),
10284 bf_get_be32(lpfc_grp_hdr_file_type, image),
10285 bf_get_be32(lpfc_grp_hdr_id, image));
10289 lpfc_decode_firmware_rev(phba, fwrev, 1);
10290 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
10291 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10292 "3023 Updating Firmware, Current Version:%s "
10293 "New Version:%s\n",
10294 fwrev, image->revision);
10295 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
10296 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
10302 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
10306 if (!dmabuf->virt) {
10311 list_add_tail(&dmabuf->list, &dma_buffer_list);
10313 while (offset < fw->size) {
10314 temp_offset = offset;
10315 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
10316 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
10317 memcpy(dmabuf->virt,
10318 fw->data + temp_offset,
10319 fw->size - temp_offset);
10320 temp_offset = fw->size;
10323 memcpy(dmabuf->virt, fw->data + temp_offset,
10325 temp_offset += SLI4_PAGE_SIZE;
10327 rc = lpfc_wr_object(phba, &dma_buffer_list,
10328 (fw->size - offset), &offset);
10336 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
10337 list_del(&dmabuf->list);
10338 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
10339 dmabuf->virt, dmabuf->phys);
10342 release_firmware(fw);
10344 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10345 "3024 Firmware update done: %d.\n", rc);
10350 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
10351 * @phba: pointer to lpfc hba data structure.
10353 * This routine is called to perform Linux generic firmware upgrade on device
10354 * that supports such feature.
10357 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
10359 uint8_t file_name[ELX_MODEL_NAME_SIZE];
10361 const struct firmware *fw;
10363 /* Only supported on SLI4 interface type 2 for now */
10364 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
10365 LPFC_SLI_INTF_IF_TYPE_2)
10368 snprintf(file_name, ELX_MODEL_NAME_SIZE, "/*(DEBLOBBED)*/", phba->ModelName);
10370 if (fw_upgrade == INT_FW_UPGRADE) {
10371 ret = reject_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
10372 file_name, &phba->pcidev->dev,
10373 GFP_KERNEL, (void *)phba,
10374 lpfc_write_firmware);
10375 } else if (fw_upgrade == RUN_FW_UPGRADE) {
10376 ret = reject_firmware(&fw, file_name, &phba->pcidev->dev);
10378 lpfc_write_firmware(fw, (void *)phba);
10387 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
10388 * @pdev: pointer to PCI device
10389 * @pid: pointer to PCI device identifier
10391 * This routine is called from the kernel's PCI subsystem to device with
10392 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10393 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10394 * information of the device and driver to see if the driver state that it
10395 * can support this kind of device. If the match is successful, the driver
10396 * core invokes this routine. If this routine determines it can claim the HBA,
10397 * it does all the initialization that it needs to do to handle the HBA
10401 * 0 - driver can claim the device
10402 * negative value - driver can not claim the device
10405 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
10407 struct lpfc_hba *phba;
10408 struct lpfc_vport *vport = NULL;
10409 struct Scsi_Host *shost = NULL;
10411 uint32_t cfg_mode, intr_mode;
10412 int adjusted_fcp_io_channel;
10414 /* Allocate memory for HBA structure */
10415 phba = lpfc_hba_alloc(pdev);
10419 /* Perform generic PCI device enabling operation */
10420 error = lpfc_enable_pci_dev(phba);
10422 goto out_free_phba;
10424 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
10425 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
10427 goto out_disable_pci_dev;
10429 /* Set up SLI-4 specific device PCI memory space */
10430 error = lpfc_sli4_pci_mem_setup(phba);
10432 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10433 "1410 Failed to set up pci memory space.\n");
10434 goto out_disable_pci_dev;
10437 /* Set up phase-1 common device driver resources */
10438 error = lpfc_setup_driver_resource_phase1(phba);
10440 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10441 "1411 Failed to set up driver resource.\n");
10442 goto out_unset_pci_mem_s4;
10445 /* Set up SLI-4 Specific device driver resources */
10446 error = lpfc_sli4_driver_resource_setup(phba);
10448 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10449 "1412 Failed to set up driver resource.\n");
10450 goto out_unset_pci_mem_s4;
10453 /* Initialize and populate the iocb list per host */
10455 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10456 "2821 initialize iocb list %d.\n",
10457 phba->cfg_iocb_cnt*1024);
10458 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
10461 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10462 "1413 Failed to initialize iocb list.\n");
10463 goto out_unset_driver_resource_s4;
10466 INIT_LIST_HEAD(&phba->active_rrq_list);
10467 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
10469 /* Set up common device driver resources */
10470 error = lpfc_setup_driver_resource_phase2(phba);
10472 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10473 "1414 Failed to set up driver resource.\n");
10474 goto out_free_iocb_list;
10477 /* Get the default values for Model Name and Description */
10478 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10480 /* Create SCSI host to the physical port */
10481 error = lpfc_create_shost(phba);
10483 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10484 "1415 Failed to create scsi host.\n");
10485 goto out_unset_driver_resource;
10488 /* Configure sysfs attributes */
10489 vport = phba->pport;
10490 error = lpfc_alloc_sysfs_attr(vport);
10492 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10493 "1416 Failed to allocate sysfs attr\n");
10494 goto out_destroy_shost;
10497 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10498 /* Now, trying to enable interrupt and bring up the device */
10499 cfg_mode = phba->cfg_use_msi;
10501 /* Put device to a known state before enabling interrupt */
10502 lpfc_stop_port(phba);
10503 /* Configure and enable interrupt */
10504 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
10505 if (intr_mode == LPFC_INTR_ERROR) {
10506 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10507 "0426 Failed to enable interrupt.\n");
10509 goto out_free_sysfs_attr;
10511 /* Default to single EQ for non-MSI-X */
10512 if (phba->intr_type != MSIX)
10513 adjusted_fcp_io_channel = 1;
10515 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
10516 phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
10517 /* Set up SLI-4 HBA */
10518 if (lpfc_sli4_hba_setup(phba)) {
10519 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10520 "1421 Failed to set up hba\n");
10522 goto out_disable_intr;
10525 /* Log the current active interrupt mode */
10526 phba->intr_mode = intr_mode;
10527 lpfc_log_intr_mode(phba, intr_mode);
10529 /* Perform post initialization setup */
10530 lpfc_post_init_setup(phba);
10532 /* check for firmware upgrade or downgrade */
10533 if (phba->cfg_request_firmware_upgrade)
10534 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
10536 /* Check if there are static vports to be created. */
10537 lpfc_create_static_vport(phba);
10541 lpfc_sli4_disable_intr(phba);
10542 out_free_sysfs_attr:
10543 lpfc_free_sysfs_attr(vport);
10545 lpfc_destroy_shost(phba);
10546 out_unset_driver_resource:
10547 lpfc_unset_driver_resource_phase2(phba);
10548 out_free_iocb_list:
10549 lpfc_free_iocb_list(phba);
10550 out_unset_driver_resource_s4:
10551 lpfc_sli4_driver_resource_unset(phba);
10552 out_unset_pci_mem_s4:
10553 lpfc_sli4_pci_mem_unset(phba);
10554 out_disable_pci_dev:
10555 lpfc_disable_pci_dev(phba);
10557 scsi_host_put(shost);
10559 lpfc_hba_free(phba);
10564 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
10565 * @pdev: pointer to PCI device
10567 * This routine is called from the kernel's PCI subsystem to device with
10568 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10569 * removed from PCI bus, it performs all the necessary cleanup for the HBA
10570 * device to be removed from the PCI subsystem properly.
10573 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
10575 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10576 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10577 struct lpfc_vport **vports;
10578 struct lpfc_hba *phba = vport->phba;
10581 /* Mark the device unloading flag */
10582 spin_lock_irq(&phba->hbalock);
10583 vport->load_flag |= FC_UNLOADING;
10584 spin_unlock_irq(&phba->hbalock);
10586 /* Free the HBA sysfs attributes */
10587 lpfc_free_sysfs_attr(vport);
10589 /* Release all the vports against this physical port */
10590 vports = lpfc_create_vport_work_array(phba);
10591 if (vports != NULL)
10592 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10593 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10595 fc_vport_terminate(vports[i]->fc_vport);
10597 lpfc_destroy_vport_work_array(phba, vports);
10599 /* Remove FC host and then SCSI host with the physical port */
10600 fc_remove_host(shost);
10601 scsi_remove_host(shost);
10603 /* Perform cleanup on the physical port */
10604 lpfc_cleanup(vport);
10607 * Bring down the SLI Layer. This step disables all interrupts,
10608 * clears the rings, discards all mailbox commands, and resets
10609 * the HBA FCoE function.
10611 lpfc_debugfs_terminate(vport);
10612 lpfc_sli4_hba_unset(phba);
10614 spin_lock_irq(&phba->hbalock);
10615 list_del_init(&vport->listentry);
10616 spin_unlock_irq(&phba->hbalock);
10618 /* Perform scsi free before driver resource_unset since scsi
10619 * buffers are released to their corresponding pools here.
10621 lpfc_scsi_free(phba);
10623 lpfc_sli4_driver_resource_unset(phba);
10625 /* Unmap adapter Control and Doorbell registers */
10626 lpfc_sli4_pci_mem_unset(phba);
10628 /* Release PCI resources and disable device's PCI function */
10629 scsi_host_put(shost);
10630 lpfc_disable_pci_dev(phba);
10632 /* Finally, free the driver's device data structure */
10633 lpfc_hba_free(phba);
10639 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
10640 * @pdev: pointer to PCI device
10641 * @msg: power management message
10643 * This routine is called from the kernel's PCI subsystem to support system
10644 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
10645 * this method, it quiesces the device by stopping the driver's worker
10646 * thread for the device, turning off device's interrupt and DMA, and bring
10647 * the device offline. Note that as the driver implements the minimum PM
10648 * requirements to a power-aware driver's PM support for suspend/resume -- all
10649 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
10650 * method call will be treated as SUSPEND and the driver will fully
10651 * reinitialize its device during resume() method call, the driver will set
10652 * device to PCI_D3hot state in PCI config space instead of setting it
10653 * according to the @msg provided by the PM.
10656 * 0 - driver suspended the device
10660 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
10662 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10663 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10665 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10666 "2843 PCI device Power Management suspend.\n");
10668 /* Bring down the device */
10669 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10670 lpfc_offline(phba);
10671 kthread_stop(phba->worker_thread);
10673 /* Disable interrupt from device */
10674 lpfc_sli4_disable_intr(phba);
10675 lpfc_sli4_queue_destroy(phba);
10677 /* Save device state to PCI config space */
10678 pci_save_state(pdev);
10679 pci_set_power_state(pdev, PCI_D3hot);
10685 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
10686 * @pdev: pointer to PCI device
10688 * This routine is called from the kernel's PCI subsystem to support system
10689 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
10690 * this method, it restores the device's PCI config space state and fully
10691 * reinitializes the device and brings it online. Note that as the driver
10692 * implements the minimum PM requirements to a power-aware driver's PM for
10693 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10694 * to the suspend() method call will be treated as SUSPEND and the driver
10695 * will fully reinitialize its device during resume() method call, the device
10696 * will be set to PCI_D0 directly in PCI config space before restoring the
10700 * 0 - driver suspended the device
10704 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
10706 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10707 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10708 uint32_t intr_mode;
10711 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10712 "0292 PCI device Power Management resume.\n");
10714 /* Restore device state from PCI config space */
10715 pci_set_power_state(pdev, PCI_D0);
10716 pci_restore_state(pdev);
10719 * As the new kernel behavior of pci_restore_state() API call clears
10720 * device saved_state flag, need to save the restored state again.
10722 pci_save_state(pdev);
10724 if (pdev->is_busmaster)
10725 pci_set_master(pdev);
10727 /* Startup the kernel thread for this host adapter. */
10728 phba->worker_thread = kthread_run(lpfc_do_work, phba,
10729 "lpfc_worker_%d", phba->brd_no);
10730 if (IS_ERR(phba->worker_thread)) {
10731 error = PTR_ERR(phba->worker_thread);
10732 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10733 "0293 PM resume failed to start worker "
10734 "thread: error=x%x.\n", error);
10738 /* Configure and enable interrupt */
10739 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10740 if (intr_mode == LPFC_INTR_ERROR) {
10741 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10742 "0294 PM resume Failed to enable interrupt\n");
10745 phba->intr_mode = intr_mode;
10747 /* Restart HBA and bring it online */
10748 lpfc_sli_brdrestart(phba);
10751 /* Log the current active interrupt mode */
10752 lpfc_log_intr_mode(phba, phba->intr_mode);
10758 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
10759 * @phba: pointer to lpfc hba data structure.
10761 * This routine is called to prepare the SLI4 device for PCI slot recover. It
10762 * aborts all the outstanding SCSI I/Os to the pci device.
10765 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
10767 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10768 "2828 PCI channel I/O abort preparing for recovery\n");
10770 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10771 * and let the SCSI mid-layer to retry them to recover.
10773 lpfc_sli_abort_fcp_rings(phba);
10777 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
10778 * @phba: pointer to lpfc hba data structure.
10780 * This routine is called to prepare the SLI4 device for PCI slot reset. It
10781 * disables the device interrupt and pci device, and aborts the internal FCP
10785 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
10787 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10788 "2826 PCI channel disable preparing for reset\n");
10790 /* Block any management I/Os to the device */
10791 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
10793 /* Block all SCSI devices' I/Os on the host */
10794 lpfc_scsi_dev_block(phba);
10796 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10797 lpfc_sli_flush_fcp_rings(phba);
10799 /* stop all timers */
10800 lpfc_stop_hba_timers(phba);
10802 /* Disable interrupt and pci device */
10803 lpfc_sli4_disable_intr(phba);
10804 lpfc_sli4_queue_destroy(phba);
10805 pci_disable_device(phba->pcidev);
10809 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10810 * @phba: pointer to lpfc hba data structure.
10812 * This routine is called to prepare the SLI4 device for PCI slot permanently
10813 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10817 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10819 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10820 "2827 PCI channel permanent disable for failure\n");
10822 /* Block all SCSI devices' I/Os on the host */
10823 lpfc_scsi_dev_block(phba);
10825 /* stop all timers */
10826 lpfc_stop_hba_timers(phba);
10828 /* Clean up all driver's outstanding SCSI I/Os */
10829 lpfc_sli_flush_fcp_rings(phba);
10833 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10834 * @pdev: pointer to PCI device.
10835 * @state: the current PCI connection state.
10837 * This routine is called from the PCI subsystem for error handling to device
10838 * with SLI-4 interface spec. This function is called by the PCI subsystem
10839 * after a PCI bus error affecting this device has been detected. When this
10840 * function is invoked, it will need to stop all the I/Os and interrupt(s)
10841 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10842 * for the PCI subsystem to perform proper recovery as desired.
10845 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10846 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10848 static pci_ers_result_t
10849 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10851 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10852 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10855 case pci_channel_io_normal:
10856 /* Non-fatal error, prepare for recovery */
10857 lpfc_sli4_prep_dev_for_recover(phba);
10858 return PCI_ERS_RESULT_CAN_RECOVER;
10859 case pci_channel_io_frozen:
10860 /* Fatal error, prepare for slot reset */
10861 lpfc_sli4_prep_dev_for_reset(phba);
10862 return PCI_ERS_RESULT_NEED_RESET;
10863 case pci_channel_io_perm_failure:
10864 /* Permanent failure, prepare for device down */
10865 lpfc_sli4_prep_dev_for_perm_failure(phba);
10866 return PCI_ERS_RESULT_DISCONNECT;
10868 /* Unknown state, prepare and request slot reset */
10869 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10870 "2825 Unknown PCI error state: x%x\n", state);
10871 lpfc_sli4_prep_dev_for_reset(phba);
10872 return PCI_ERS_RESULT_NEED_RESET;
10877 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10878 * @pdev: pointer to PCI device.
10880 * This routine is called from the PCI subsystem for error handling to device
10881 * with SLI-4 interface spec. It is called after PCI bus has been reset to
10882 * restart the PCI card from scratch, as if from a cold-boot. During the
10883 * PCI subsystem error recovery, after the driver returns
10884 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10885 * recovery and then call this routine before calling the .resume method to
10886 * recover the device. This function will initialize the HBA device, enable
10887 * the interrupt, but it will just put the HBA to offline state without
10888 * passing any I/O traffic.
10891 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10892 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10894 static pci_ers_result_t
10895 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10897 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10898 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10899 struct lpfc_sli *psli = &phba->sli;
10900 uint32_t intr_mode;
10902 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10903 if (pci_enable_device_mem(pdev)) {
10904 printk(KERN_ERR "lpfc: Cannot re-enable "
10905 "PCI device after reset.\n");
10906 return PCI_ERS_RESULT_DISCONNECT;
10909 pci_restore_state(pdev);
10912 * As the new kernel behavior of pci_restore_state() API call clears
10913 * device saved_state flag, need to save the restored state again.
10915 pci_save_state(pdev);
10917 if (pdev->is_busmaster)
10918 pci_set_master(pdev);
10920 spin_lock_irq(&phba->hbalock);
10921 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10922 spin_unlock_irq(&phba->hbalock);
10924 /* Configure and enable interrupt */
10925 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10926 if (intr_mode == LPFC_INTR_ERROR) {
10927 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10928 "2824 Cannot re-enable interrupt after "
10930 return PCI_ERS_RESULT_DISCONNECT;
10932 phba->intr_mode = intr_mode;
10934 /* Log the current active interrupt mode */
10935 lpfc_log_intr_mode(phba, phba->intr_mode);
10937 return PCI_ERS_RESULT_RECOVERED;
10941 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10942 * @pdev: pointer to PCI device
10944 * This routine is called from the PCI subsystem for error handling to device
10945 * with SLI-4 interface spec. It is called when kernel error recovery tells
10946 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10947 * error recovery. After this call, traffic can start to flow from this device
10951 lpfc_io_resume_s4(struct pci_dev *pdev)
10953 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10954 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10957 * In case of slot reset, as function reset is performed through
10958 * mailbox command which needs DMA to be enabled, this operation
10959 * has to be moved to the io resume phase. Taking device offline
10960 * will perform the necessary cleanup.
10962 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10963 /* Perform device reset */
10964 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10965 lpfc_offline(phba);
10966 lpfc_sli_brdrestart(phba);
10967 /* Bring the device back online */
10971 /* Clean up Advanced Error Reporting (AER) if needed */
10972 if (phba->hba_flag & HBA_AER_ENABLED)
10973 pci_cleanup_aer_uncorrect_error_status(pdev);
10977 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10978 * @pdev: pointer to PCI device
10979 * @pid: pointer to PCI device identifier
10981 * This routine is to be registered to the kernel's PCI subsystem. When an
10982 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10983 * at PCI device-specific information of the device and driver to see if the
10984 * driver state that it can support this kind of device. If the match is
10985 * successful, the driver core invokes this routine. This routine dispatches
10986 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10987 * do all the initialization that it needs to do to handle the HBA device
10991 * 0 - driver can claim the device
10992 * negative value - driver can not claim the device
10995 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10998 struct lpfc_sli_intf intf;
11000 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
11003 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
11004 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
11005 rc = lpfc_pci_probe_one_s4(pdev, pid);
11007 rc = lpfc_pci_probe_one_s3(pdev, pid);
11013 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
11014 * @pdev: pointer to PCI device
11016 * This routine is to be registered to the kernel's PCI subsystem. When an
11017 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
11018 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
11019 * remove routine, which will perform all the necessary cleanup for the
11020 * device to be removed from the PCI subsystem properly.
11023 lpfc_pci_remove_one(struct pci_dev *pdev)
11025 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11026 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11028 switch (phba->pci_dev_grp) {
11029 case LPFC_PCI_DEV_LP:
11030 lpfc_pci_remove_one_s3(pdev);
11032 case LPFC_PCI_DEV_OC:
11033 lpfc_pci_remove_one_s4(pdev);
11036 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11037 "1424 Invalid PCI device group: 0x%x\n",
11038 phba->pci_dev_grp);
11045 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
11046 * @pdev: pointer to PCI device
11047 * @msg: power management message
11049 * This routine is to be registered to the kernel's PCI subsystem to support
11050 * system Power Management (PM). When PM invokes this method, it dispatches
11051 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
11052 * suspend the device.
11055 * 0 - driver suspended the device
11059 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
11061 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11062 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11065 switch (phba->pci_dev_grp) {
11066 case LPFC_PCI_DEV_LP:
11067 rc = lpfc_pci_suspend_one_s3(pdev, msg);
11069 case LPFC_PCI_DEV_OC:
11070 rc = lpfc_pci_suspend_one_s4(pdev, msg);
11073 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11074 "1425 Invalid PCI device group: 0x%x\n",
11075 phba->pci_dev_grp);
11082 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
11083 * @pdev: pointer to PCI device
11085 * This routine is to be registered to the kernel's PCI subsystem to support
11086 * system Power Management (PM). When PM invokes this method, it dispatches
11087 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
11088 * resume the device.
11091 * 0 - driver suspended the device
11095 lpfc_pci_resume_one(struct pci_dev *pdev)
11097 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11098 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11101 switch (phba->pci_dev_grp) {
11102 case LPFC_PCI_DEV_LP:
11103 rc = lpfc_pci_resume_one_s3(pdev);
11105 case LPFC_PCI_DEV_OC:
11106 rc = lpfc_pci_resume_one_s4(pdev);
11109 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11110 "1426 Invalid PCI device group: 0x%x\n",
11111 phba->pci_dev_grp);
11118 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
11119 * @pdev: pointer to PCI device.
11120 * @state: the current PCI connection state.
11122 * This routine is registered to the PCI subsystem for error handling. This
11123 * function is called by the PCI subsystem after a PCI bus error affecting
11124 * this device has been detected. When this routine is invoked, it dispatches
11125 * the action to the proper SLI-3 or SLI-4 device error detected handling
11126 * routine, which will perform the proper error detected operation.
11129 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11130 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11132 static pci_ers_result_t
11133 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
11135 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11136 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11137 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11139 switch (phba->pci_dev_grp) {
11140 case LPFC_PCI_DEV_LP:
11141 rc = lpfc_io_error_detected_s3(pdev, state);
11143 case LPFC_PCI_DEV_OC:
11144 rc = lpfc_io_error_detected_s4(pdev, state);
11147 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11148 "1427 Invalid PCI device group: 0x%x\n",
11149 phba->pci_dev_grp);
11156 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
11157 * @pdev: pointer to PCI device.
11159 * This routine is registered to the PCI subsystem for error handling. This
11160 * function is called after PCI bus has been reset to restart the PCI card
11161 * from scratch, as if from a cold-boot. When this routine is invoked, it
11162 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
11163 * routine, which will perform the proper device reset.
11166 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
11167 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11169 static pci_ers_result_t
11170 lpfc_io_slot_reset(struct pci_dev *pdev)
11172 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11173 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11174 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11176 switch (phba->pci_dev_grp) {
11177 case LPFC_PCI_DEV_LP:
11178 rc = lpfc_io_slot_reset_s3(pdev);
11180 case LPFC_PCI_DEV_OC:
11181 rc = lpfc_io_slot_reset_s4(pdev);
11184 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11185 "1428 Invalid PCI device group: 0x%x\n",
11186 phba->pci_dev_grp);
11193 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
11194 * @pdev: pointer to PCI device
11196 * This routine is registered to the PCI subsystem for error handling. It
11197 * is called when kernel error recovery tells the lpfc driver that it is
11198 * OK to resume normal PCI operation after PCI bus error recovery. When
11199 * this routine is invoked, it dispatches the action to the proper SLI-3
11200 * or SLI-4 device io_resume routine, which will resume the device operation.
11203 lpfc_io_resume(struct pci_dev *pdev)
11205 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11206 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11208 switch (phba->pci_dev_grp) {
11209 case LPFC_PCI_DEV_LP:
11210 lpfc_io_resume_s3(pdev);
11212 case LPFC_PCI_DEV_OC:
11213 lpfc_io_resume_s4(pdev);
11216 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11217 "1429 Invalid PCI device group: 0x%x\n",
11218 phba->pci_dev_grp);
11225 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
11226 * @phba: pointer to lpfc hba data structure.
11228 * This routine checks to see if OAS is supported for this adapter. If
11229 * supported, the configure Flash Optimized Fabric flag is set. Otherwise,
11230 * the enable oas flag is cleared and the pool created for OAS device data
11235 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
11238 if (!phba->cfg_EnableXLane)
11241 if (phba->sli4_hba.pc_sli4_params.oas_supported) {
11245 if (phba->device_data_mem_pool)
11246 mempool_destroy(phba->device_data_mem_pool);
11247 phba->device_data_mem_pool = NULL;
11254 * lpfc_fof_queue_setup - Set up all the fof queues
11255 * @phba: pointer to lpfc hba data structure.
11257 * This routine is invoked to set up all the fof queues for the FC HBA
11262 * -ENOMEM - No available memory
11265 lpfc_fof_queue_setup(struct lpfc_hba *phba)
11267 struct lpfc_sli *psli = &phba->sli;
11270 rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
11274 if (phba->cfg_fof) {
11276 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
11277 phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
11281 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
11282 phba->sli4_hba.oas_cq, LPFC_FCP);
11286 phba->sli4_hba.oas_cq->pring = &psli->ring[LPFC_FCP_OAS_RING];
11287 phba->sli4_hba.oas_ring = &psli->ring[LPFC_FCP_OAS_RING];
11293 lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
11295 lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
11301 * lpfc_fof_queue_create - Create all the fof queues
11302 * @phba: pointer to lpfc hba data structure.
11304 * This routine is invoked to allocate all the fof queues for the FC HBA
11305 * operation. For each SLI4 queue type, the parameters such as queue entry
11306 * count (queue depth) shall be taken from the module parameter. For now,
11307 * we just use some constant number as place holder.
11311 * -ENOMEM - No availble memory
11312 * -EIO - The mailbox failed to complete successfully.
11315 lpfc_fof_queue_create(struct lpfc_hba *phba)
11317 struct lpfc_queue *qdesc;
11320 /* Create FOF EQ */
11321 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
11322 phba->sli4_hba.eq_ecount);
11326 phba->sli4_hba.fof_eq = qdesc;
11328 if (phba->cfg_fof) {
11330 /* Create OAS CQ */
11331 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
11332 phba->sli4_hba.cq_ecount);
11336 phba->sli4_hba.oas_cq = qdesc;
11338 /* Create OAS WQ */
11339 wqesize = (phba->fcp_embed_io) ?
11340 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
11341 qdesc = lpfc_sli4_queue_alloc(phba, wqesize,
11342 phba->sli4_hba.wq_ecount);
11347 phba->sli4_hba.oas_wq = qdesc;
11353 lpfc_fof_queue_destroy(phba);
11358 * lpfc_fof_queue_destroy - Destroy all the fof queues
11359 * @phba: pointer to lpfc hba data structure.
11361 * This routine is invoked to release all the SLI4 queues with the FC HBA
11368 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
11370 /* Release FOF Event queue */
11371 if (phba->sli4_hba.fof_eq != NULL) {
11372 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
11373 phba->sli4_hba.fof_eq = NULL;
11376 /* Release OAS Completion queue */
11377 if (phba->sli4_hba.oas_cq != NULL) {
11378 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
11379 phba->sli4_hba.oas_cq = NULL;
11382 /* Release OAS Work queue */
11383 if (phba->sli4_hba.oas_wq != NULL) {
11384 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
11385 phba->sli4_hba.oas_wq = NULL;
11390 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
11392 static const struct pci_error_handlers lpfc_err_handler = {
11393 .error_detected = lpfc_io_error_detected,
11394 .slot_reset = lpfc_io_slot_reset,
11395 .resume = lpfc_io_resume,
11398 static struct pci_driver lpfc_driver = {
11399 .name = LPFC_DRIVER_NAME,
11400 .id_table = lpfc_id_table,
11401 .probe = lpfc_pci_probe_one,
11402 .remove = lpfc_pci_remove_one,
11403 .shutdown = lpfc_pci_remove_one,
11404 .suspend = lpfc_pci_suspend_one,
11405 .resume = lpfc_pci_resume_one,
11406 .err_handler = &lpfc_err_handler,
11409 static const struct file_operations lpfc_mgmt_fop = {
11410 .owner = THIS_MODULE,
11413 static struct miscdevice lpfc_mgmt_dev = {
11414 .minor = MISC_DYNAMIC_MINOR,
11415 .name = "lpfcmgmt",
11416 .fops = &lpfc_mgmt_fop,
11420 * lpfc_init - lpfc module initialization routine
11422 * This routine is to be invoked when the lpfc module is loaded into the
11423 * kernel. The special kernel macro module_init() is used to indicate the
11424 * role of this routine to the kernel as lpfc module entry point.
11428 * -ENOMEM - FC attach transport failed
11429 * all others - failed
11437 printk(LPFC_MODULE_DESC "\n");
11438 printk(LPFC_COPYRIGHT "\n");
11440 error = misc_register(&lpfc_mgmt_dev);
11442 printk(KERN_ERR "Could not register lpfcmgmt device, "
11443 "misc_register returned with status %d", error);
11445 lpfc_transport_functions.vport_create = lpfc_vport_create;
11446 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
11447 lpfc_transport_template =
11448 fc_attach_transport(&lpfc_transport_functions);
11449 if (lpfc_transport_template == NULL)
11451 lpfc_vport_transport_template =
11452 fc_attach_transport(&lpfc_vport_transport_functions);
11453 if (lpfc_vport_transport_template == NULL) {
11454 fc_release_transport(lpfc_transport_template);
11458 /* Initialize in case vector mapping is needed */
11459 lpfc_used_cpu = NULL;
11460 lpfc_present_cpu = 0;
11461 for_each_present_cpu(cpu)
11462 lpfc_present_cpu++;
11464 error = pci_register_driver(&lpfc_driver);
11466 fc_release_transport(lpfc_transport_template);
11467 fc_release_transport(lpfc_vport_transport_template);
11474 * lpfc_exit - lpfc module removal routine
11476 * This routine is invoked when the lpfc module is removed from the kernel.
11477 * The special kernel macro module_exit() is used to indicate the role of
11478 * this routine to the kernel as lpfc module exit point.
11483 misc_deregister(&lpfc_mgmt_dev);
11484 pci_unregister_driver(&lpfc_driver);
11485 fc_release_transport(lpfc_transport_template);
11486 fc_release_transport(lpfc_vport_transport_template);
11487 if (_dump_buf_data) {
11488 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
11489 "_dump_buf_data at 0x%p\n",
11490 (1L << _dump_buf_data_order), _dump_buf_data);
11491 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
11494 if (_dump_buf_dif) {
11495 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
11496 "_dump_buf_dif at 0x%p\n",
11497 (1L << _dump_buf_dif_order), _dump_buf_dif);
11498 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
11500 kfree(lpfc_used_cpu);
11501 idr_destroy(&lpfc_hba_index);
11504 module_init(lpfc_init);
11505 module_exit(lpfc_exit);
11506 MODULE_LICENSE("GPL");
11507 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
11508 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
11509 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);