1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. *
6 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
7 * EMULEX and SLI are trademarks of Emulex. *
9 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
11 * This program is free software; you can redistribute it and/or *
12 * modify it under the terms of version 2 of the GNU General *
13 * Public License as published by the Free Software Foundation. *
14 * This program is distributed in the hope that it will be useful. *
15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
19 * TO BE LEGALLY INVALID. See the GNU General Public License for *
20 * more details, a copy of which can be found in the file COPYING *
21 * included with this package. *
22 *******************************************************************/
24 #include <linux/blkdev.h>
25 #include <linux/delay.h>
26 #include <linux/dma-mapping.h>
27 #include <linux/idr.h>
28 #include <linux/interrupt.h>
29 #include <linux/module.h>
30 #include <linux/kthread.h>
31 #include <linux/pci.h>
32 #include <linux/spinlock.h>
33 #include <linux/ctype.h>
34 #include <linux/aer.h>
35 #include <linux/slab.h>
36 #include <linux/firmware.h>
37 #include <linux/miscdevice.h>
38 #include <linux/percpu.h>
39 #include <linux/msi.h>
41 #include <scsi/scsi.h>
42 #include <scsi/scsi_device.h>
43 #include <scsi/scsi_host.h>
44 #include <scsi/scsi_transport_fc.h>
45 #include <scsi/scsi_tcq.h>
46 #include <scsi/fc/fc_fs.h>
48 #include <linux/nvme-fc-driver.h>
53 #include "lpfc_sli4.h"
55 #include "lpfc_disc.h"
57 #include "lpfc_scsi.h"
58 #include "lpfc_nvme.h"
59 #include "lpfc_nvmet.h"
60 #include "lpfc_logmsg.h"
61 #include "lpfc_crtn.h"
62 #include "lpfc_vport.h"
63 #include "lpfc_version.h"
67 unsigned long _dump_buf_data_order;
69 unsigned long _dump_buf_dif_order;
70 spinlock_t _dump_buf_lock;
72 /* Used when mapping IRQ vectors in a driver centric manner */
73 uint16_t *lpfc_used_cpu;
74 uint32_t lpfc_present_cpu;
76 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
77 static int lpfc_post_rcv_buf(struct lpfc_hba *);
78 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
79 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
80 static int lpfc_setup_endian_order(struct lpfc_hba *);
81 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
82 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
83 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
84 static void lpfc_init_sgl_list(struct lpfc_hba *);
85 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
86 static void lpfc_free_active_sgl(struct lpfc_hba *);
87 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
88 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
89 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
90 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
91 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
92 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
93 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
94 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
96 static struct scsi_transport_template *lpfc_transport_template = NULL;
97 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
98 static DEFINE_IDR(lpfc_hba_index);
99 #define LPFC_NVMET_BUF_POST 254
102 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
103 * @phba: pointer to lpfc hba data structure.
105 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
106 * mailbox command. It retrieves the revision information from the HBA and
107 * collects the Vital Product Data (VPD) about the HBA for preparing the
108 * configuration of the HBA.
112 * -ERESTART - requests the SLI layer to reset the HBA and try again.
113 * Any other value - indicates an error.
116 lpfc_config_port_prep(struct lpfc_hba *phba)
118 lpfc_vpd_t *vp = &phba->vpd;
122 char *lpfc_vpd_data = NULL;
124 static char licensed[56] =
125 "key unlock for use with gnu public licensed code only\0";
126 static int init_key = 1;
128 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
130 phba->link_state = LPFC_HBA_ERROR;
135 phba->link_state = LPFC_INIT_MBX_CMDS;
137 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
139 uint32_t *ptext = (uint32_t *) licensed;
141 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
142 *ptext = cpu_to_be32(*ptext);
146 lpfc_read_nv(phba, pmb);
147 memset((char*)mb->un.varRDnvp.rsvd3, 0,
148 sizeof (mb->un.varRDnvp.rsvd3));
149 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
152 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
154 if (rc != MBX_SUCCESS) {
155 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
156 "0324 Config Port initialization "
157 "error, mbxCmd x%x READ_NVPARM, "
159 mb->mbxCommand, mb->mbxStatus);
160 mempool_free(pmb, phba->mbox_mem_pool);
163 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
165 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
169 phba->sli3_options = 0x0;
171 /* Setup and issue mailbox READ REV command */
172 lpfc_read_rev(phba, pmb);
173 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
174 if (rc != MBX_SUCCESS) {
175 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
176 "0439 Adapter failed to init, mbxCmd x%x "
177 "READ_REV, mbxStatus x%x\n",
178 mb->mbxCommand, mb->mbxStatus);
179 mempool_free( pmb, phba->mbox_mem_pool);
185 * The value of rr must be 1 since the driver set the cv field to 1.
186 * This setting requires the FW to set all revision fields.
188 if (mb->un.varRdRev.rr == 0) {
190 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
191 "0440 Adapter failed to init, READ_REV has "
192 "missing revision information.\n");
193 mempool_free(pmb, phba->mbox_mem_pool);
197 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
198 mempool_free(pmb, phba->mbox_mem_pool);
202 /* Save information as VPD data */
204 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
205 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
206 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
207 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
208 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
209 vp->rev.biuRev = mb->un.varRdRev.biuRev;
210 vp->rev.smRev = mb->un.varRdRev.smRev;
211 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
212 vp->rev.endecRev = mb->un.varRdRev.endecRev;
213 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
214 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
215 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
216 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
217 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
218 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
220 /* If the sli feature level is less then 9, we must
221 * tear down all RPIs and VPIs on link down if NPIV
224 if (vp->rev.feaLevelHigh < 9)
225 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
227 if (lpfc_is_LC_HBA(phba->pcidev->device))
228 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
229 sizeof (phba->RandomData));
231 /* Get adapter VPD information */
232 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
236 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
237 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
239 if (rc != MBX_SUCCESS) {
240 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
241 "0441 VPD not present on adapter, "
242 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
243 mb->mbxCommand, mb->mbxStatus);
244 mb->un.varDmp.word_cnt = 0;
246 /* dump mem may return a zero when finished or we got a
247 * mailbox error, either way we are done.
249 if (mb->un.varDmp.word_cnt == 0)
251 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
252 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
253 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
254 lpfc_vpd_data + offset,
255 mb->un.varDmp.word_cnt);
256 offset += mb->un.varDmp.word_cnt;
257 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
258 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
260 kfree(lpfc_vpd_data);
262 mempool_free(pmb, phba->mbox_mem_pool);
267 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
268 * @phba: pointer to lpfc hba data structure.
269 * @pmboxq: pointer to the driver internal queue element for mailbox command.
271 * This is the completion handler for driver's configuring asynchronous event
272 * mailbox command to the device. If the mailbox command returns successfully,
273 * it will set internal async event support flag to 1; otherwise, it will
274 * set internal async event support flag to 0.
277 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
279 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
280 phba->temp_sensor_support = 1;
282 phba->temp_sensor_support = 0;
283 mempool_free(pmboxq, phba->mbox_mem_pool);
288 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
289 * @phba: pointer to lpfc hba data structure.
290 * @pmboxq: pointer to the driver internal queue element for mailbox command.
292 * This is the completion handler for dump mailbox command for getting
293 * wake up parameters. When this command complete, the response contain
294 * Option rom version of the HBA. This function translate the version number
295 * into a human readable string and store it in OptionROMVersion.
298 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
301 uint32_t prog_id_word;
303 /* character array used for decoding dist type. */
304 char dist_char[] = "nabx";
306 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
307 mempool_free(pmboxq, phba->mbox_mem_pool);
311 prg = (struct prog_id *) &prog_id_word;
313 /* word 7 contain option rom version */
314 prog_id_word = pmboxq->u.mb.un.varWords[7];
316 /* Decode the Option rom version word to a readable string */
318 dist = dist_char[prg->dist];
320 if ((prg->dist == 3) && (prg->num == 0))
321 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
322 prg->ver, prg->rev, prg->lev);
324 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
325 prg->ver, prg->rev, prg->lev,
327 mempool_free(pmboxq, phba->mbox_mem_pool);
332 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
333 * cfg_soft_wwnn, cfg_soft_wwpn
334 * @vport: pointer to lpfc vport data structure.
341 lpfc_update_vport_wwn(struct lpfc_vport *vport)
343 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
344 u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
346 /* If the soft name exists then update it using the service params */
347 if (vport->phba->cfg_soft_wwnn)
348 u64_to_wwn(vport->phba->cfg_soft_wwnn,
349 vport->fc_sparam.nodeName.u.wwn);
350 if (vport->phba->cfg_soft_wwpn)
351 u64_to_wwn(vport->phba->cfg_soft_wwpn,
352 vport->fc_sparam.portName.u.wwn);
355 * If the name is empty or there exists a soft name
356 * then copy the service params name, otherwise use the fc name
358 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
359 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
360 sizeof(struct lpfc_name));
362 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
363 sizeof(struct lpfc_name));
366 * If the port name has changed, then set the Param changes flag
369 if (vport->fc_portname.u.wwn[0] != 0 &&
370 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
371 sizeof(struct lpfc_name)))
372 vport->vport_flag |= FAWWPN_PARAM_CHG;
374 if (vport->fc_portname.u.wwn[0] == 0 ||
375 vport->phba->cfg_soft_wwpn ||
376 (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
377 vport->vport_flag & FAWWPN_SET) {
378 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
379 sizeof(struct lpfc_name));
380 vport->vport_flag &= ~FAWWPN_SET;
381 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
382 vport->vport_flag |= FAWWPN_SET;
385 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
386 sizeof(struct lpfc_name));
390 * lpfc_config_port_post - Perform lpfc initialization after config port
391 * @phba: pointer to lpfc hba data structure.
393 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
394 * command call. It performs all internal resource and state setups on the
395 * port: post IOCB buffers, enable appropriate host interrupt attentions,
396 * ELS ring timers, etc.
400 * Any other value - error.
403 lpfc_config_port_post(struct lpfc_hba *phba)
405 struct lpfc_vport *vport = phba->pport;
406 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
409 struct lpfc_dmabuf *mp;
410 struct lpfc_sli *psli = &phba->sli;
411 uint32_t status, timeout;
415 spin_lock_irq(&phba->hbalock);
417 * If the Config port completed correctly the HBA is not
418 * over heated any more.
420 if (phba->over_temp_state == HBA_OVER_TEMP)
421 phba->over_temp_state = HBA_NORMAL_TEMP;
422 spin_unlock_irq(&phba->hbalock);
424 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
426 phba->link_state = LPFC_HBA_ERROR;
431 /* Get login parameters for NID. */
432 rc = lpfc_read_sparam(phba, pmb, 0);
434 mempool_free(pmb, phba->mbox_mem_pool);
439 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
440 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
441 "0448 Adapter failed init, mbxCmd x%x "
442 "READ_SPARM mbxStatus x%x\n",
443 mb->mbxCommand, mb->mbxStatus);
444 phba->link_state = LPFC_HBA_ERROR;
445 mp = (struct lpfc_dmabuf *) pmb->context1;
446 mempool_free(pmb, phba->mbox_mem_pool);
447 lpfc_mbuf_free(phba, mp->virt, mp->phys);
452 mp = (struct lpfc_dmabuf *) pmb->context1;
454 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
455 lpfc_mbuf_free(phba, mp->virt, mp->phys);
457 pmb->context1 = NULL;
458 lpfc_update_vport_wwn(vport);
460 /* Update the fc_host data structures with new wwn. */
461 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
462 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
463 fc_host_max_npiv_vports(shost) = phba->max_vpi;
465 /* If no serial number in VPD data, use low 6 bytes of WWNN */
466 /* This should be consolidated into parse_vpd ? - mr */
467 if (phba->SerialNumber[0] == 0) {
470 outptr = &vport->fc_nodename.u.s.IEEE[0];
471 for (i = 0; i < 12; i++) {
473 j = ((status & 0xf0) >> 4);
475 phba->SerialNumber[i] =
476 (char)((uint8_t) 0x30 + (uint8_t) j);
478 phba->SerialNumber[i] =
479 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
483 phba->SerialNumber[i] =
484 (char)((uint8_t) 0x30 + (uint8_t) j);
486 phba->SerialNumber[i] =
487 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
491 lpfc_read_config(phba, pmb);
493 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
494 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
495 "0453 Adapter failed to init, mbxCmd x%x "
496 "READ_CONFIG, mbxStatus x%x\n",
497 mb->mbxCommand, mb->mbxStatus);
498 phba->link_state = LPFC_HBA_ERROR;
499 mempool_free( pmb, phba->mbox_mem_pool);
503 /* Check if the port is disabled */
504 lpfc_sli_read_link_ste(phba);
506 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
507 i = (mb->un.varRdConfig.max_xri + 1);
508 if (phba->cfg_hba_queue_depth > i) {
509 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
510 "3359 HBA queue depth changed from %d to %d\n",
511 phba->cfg_hba_queue_depth, i);
512 phba->cfg_hba_queue_depth = i;
515 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
516 i = (mb->un.varRdConfig.max_xri >> 3);
517 if (phba->pport->cfg_lun_queue_depth > i) {
518 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
519 "3360 LUN queue depth changed from %d to %d\n",
520 phba->pport->cfg_lun_queue_depth, i);
521 phba->pport->cfg_lun_queue_depth = i;
524 phba->lmt = mb->un.varRdConfig.lmt;
526 /* Get the default values for Model Name and Description */
527 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
529 phba->link_state = LPFC_LINK_DOWN;
531 /* Only process IOCBs on ELS ring till hba_state is READY */
532 if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
533 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
534 if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
535 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
537 /* Post receive buffers for desired rings */
538 if (phba->sli_rev != 3)
539 lpfc_post_rcv_buf(phba);
542 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
544 if (phba->intr_type == MSIX) {
545 rc = lpfc_config_msi(phba, pmb);
547 mempool_free(pmb, phba->mbox_mem_pool);
550 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
551 if (rc != MBX_SUCCESS) {
552 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
553 "0352 Config MSI mailbox command "
554 "failed, mbxCmd x%x, mbxStatus x%x\n",
555 pmb->u.mb.mbxCommand,
556 pmb->u.mb.mbxStatus);
557 mempool_free(pmb, phba->mbox_mem_pool);
562 spin_lock_irq(&phba->hbalock);
563 /* Initialize ERATT handling flag */
564 phba->hba_flag &= ~HBA_ERATT_HANDLED;
566 /* Enable appropriate host interrupts */
567 if (lpfc_readl(phba->HCregaddr, &status)) {
568 spin_unlock_irq(&phba->hbalock);
571 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
572 if (psli->num_rings > 0)
573 status |= HC_R0INT_ENA;
574 if (psli->num_rings > 1)
575 status |= HC_R1INT_ENA;
576 if (psli->num_rings > 2)
577 status |= HC_R2INT_ENA;
578 if (psli->num_rings > 3)
579 status |= HC_R3INT_ENA;
581 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
582 (phba->cfg_poll & DISABLE_FCP_RING_INT))
583 status &= ~(HC_R0INT_ENA);
585 writel(status, phba->HCregaddr);
586 readl(phba->HCregaddr); /* flush */
587 spin_unlock_irq(&phba->hbalock);
589 /* Set up ring-0 (ELS) timer */
590 timeout = phba->fc_ratov * 2;
591 mod_timer(&vport->els_tmofunc,
592 jiffies + msecs_to_jiffies(1000 * timeout));
593 /* Set up heart beat (HB) timer */
594 mod_timer(&phba->hb_tmofunc,
595 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
596 phba->hb_outstanding = 0;
597 phba->last_completion_time = jiffies;
598 /* Set up error attention (ERATT) polling timer */
599 mod_timer(&phba->eratt_poll,
600 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
602 if (phba->hba_flag & LINK_DISABLED) {
603 lpfc_printf_log(phba,
605 "2598 Adapter Link is disabled.\n");
606 lpfc_down_link(phba, pmb);
607 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
608 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
609 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
610 lpfc_printf_log(phba,
612 "2599 Adapter failed to issue DOWN_LINK"
613 " mbox command rc 0x%x\n", rc);
615 mempool_free(pmb, phba->mbox_mem_pool);
618 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
619 mempool_free(pmb, phba->mbox_mem_pool);
620 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
624 /* MBOX buffer will be freed in mbox compl */
625 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
627 phba->link_state = LPFC_HBA_ERROR;
631 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
632 pmb->mbox_cmpl = lpfc_config_async_cmpl;
633 pmb->vport = phba->pport;
634 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
636 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
637 lpfc_printf_log(phba,
640 "0456 Adapter failed to issue "
641 "ASYNCEVT_ENABLE mbox status x%x\n",
643 mempool_free(pmb, phba->mbox_mem_pool);
646 /* Get Option rom version */
647 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
649 phba->link_state = LPFC_HBA_ERROR;
653 lpfc_dump_wakeup_param(phba, pmb);
654 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
655 pmb->vport = phba->pport;
656 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
658 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
660 "to get Option ROM version status x%x\n", rc);
661 mempool_free(pmb, phba->mbox_mem_pool);
668 * lpfc_hba_init_link - Initialize the FC link
669 * @phba: pointer to lpfc hba data structure.
670 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
672 * This routine will issue the INIT_LINK mailbox command call.
673 * It is available to other drivers through the lpfc_hba data
674 * structure for use as a delayed link up mechanism with the
675 * module parameter lpfc_suppress_link_up.
679 * Any other value - error
682 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
684 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
688 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
689 * @phba: pointer to lpfc hba data structure.
690 * @fc_topology: desired fc topology.
691 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
693 * This routine will issue the INIT_LINK mailbox command call.
694 * It is available to other drivers through the lpfc_hba data
695 * structure for use as a delayed link up mechanism with the
696 * module parameter lpfc_suppress_link_up.
700 * Any other value - error
703 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
706 struct lpfc_vport *vport = phba->pport;
711 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
713 phba->link_state = LPFC_HBA_ERROR;
719 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
720 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
721 !(phba->lmt & LMT_1Gb)) ||
722 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
723 !(phba->lmt & LMT_2Gb)) ||
724 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
725 !(phba->lmt & LMT_4Gb)) ||
726 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
727 !(phba->lmt & LMT_8Gb)) ||
728 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
729 !(phba->lmt & LMT_10Gb)) ||
730 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
731 !(phba->lmt & LMT_16Gb)) ||
732 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
733 !(phba->lmt & LMT_32Gb))) {
734 /* Reset link speed to auto */
735 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
736 "1302 Invalid speed for this board:%d "
737 "Reset link speed to auto.\n",
738 phba->cfg_link_speed);
739 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
741 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
742 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
743 if (phba->sli_rev < LPFC_SLI_REV4)
744 lpfc_set_loopback_flag(phba);
745 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
746 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
747 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
748 "0498 Adapter failed to init, mbxCmd x%x "
749 "INIT_LINK, mbxStatus x%x\n",
750 mb->mbxCommand, mb->mbxStatus);
751 if (phba->sli_rev <= LPFC_SLI_REV3) {
752 /* Clear all interrupt enable conditions */
753 writel(0, phba->HCregaddr);
754 readl(phba->HCregaddr); /* flush */
755 /* Clear all pending interrupts */
756 writel(0xffffffff, phba->HAregaddr);
757 readl(phba->HAregaddr); /* flush */
759 phba->link_state = LPFC_HBA_ERROR;
760 if (rc != MBX_BUSY || flag == MBX_POLL)
761 mempool_free(pmb, phba->mbox_mem_pool);
764 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
765 if (flag == MBX_POLL)
766 mempool_free(pmb, phba->mbox_mem_pool);
772 * lpfc_hba_down_link - this routine downs the FC link
773 * @phba: pointer to lpfc hba data structure.
774 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
776 * This routine will issue the DOWN_LINK mailbox command call.
777 * It is available to other drivers through the lpfc_hba data
778 * structure for use to stop the link.
782 * Any other value - error
785 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
790 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
792 phba->link_state = LPFC_HBA_ERROR;
796 lpfc_printf_log(phba,
798 "0491 Adapter Link is disabled.\n");
799 lpfc_down_link(phba, pmb);
800 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
801 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
802 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
803 lpfc_printf_log(phba,
805 "2522 Adapter failed to issue DOWN_LINK"
806 " mbox command rc 0x%x\n", rc);
808 mempool_free(pmb, phba->mbox_mem_pool);
811 if (flag == MBX_POLL)
812 mempool_free(pmb, phba->mbox_mem_pool);
818 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
819 * @phba: pointer to lpfc HBA data structure.
821 * This routine will do LPFC uninitialization before the HBA is reset when
822 * bringing down the SLI Layer.
826 * Any other value - error.
829 lpfc_hba_down_prep(struct lpfc_hba *phba)
831 struct lpfc_vport **vports;
834 if (phba->sli_rev <= LPFC_SLI_REV3) {
835 /* Disable interrupts */
836 writel(0, phba->HCregaddr);
837 readl(phba->HCregaddr); /* flush */
840 if (phba->pport->load_flag & FC_UNLOADING)
841 lpfc_cleanup_discovery_resources(phba->pport);
843 vports = lpfc_create_vport_work_array(phba);
845 for (i = 0; i <= phba->max_vports &&
846 vports[i] != NULL; i++)
847 lpfc_cleanup_discovery_resources(vports[i]);
848 lpfc_destroy_vport_work_array(phba, vports);
854 * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
855 * rspiocb which got deferred
857 * @phba: pointer to lpfc HBA data structure.
859 * This routine will cleanup completed slow path events after HBA is reset
860 * when bringing down the SLI Layer.
867 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
869 struct lpfc_iocbq *rspiocbq;
870 struct hbq_dmabuf *dmabuf;
871 struct lpfc_cq_event *cq_event;
873 spin_lock_irq(&phba->hbalock);
874 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
875 spin_unlock_irq(&phba->hbalock);
877 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
878 /* Get the response iocb from the head of work queue */
879 spin_lock_irq(&phba->hbalock);
880 list_remove_head(&phba->sli4_hba.sp_queue_event,
881 cq_event, struct lpfc_cq_event, list);
882 spin_unlock_irq(&phba->hbalock);
884 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
885 case CQE_CODE_COMPL_WQE:
886 rspiocbq = container_of(cq_event, struct lpfc_iocbq,
888 lpfc_sli_release_iocbq(phba, rspiocbq);
890 case CQE_CODE_RECEIVE:
891 case CQE_CODE_RECEIVE_V1:
892 dmabuf = container_of(cq_event, struct hbq_dmabuf,
894 lpfc_in_buf_free(phba, &dmabuf->dbuf);
900 * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
901 * @phba: pointer to lpfc HBA data structure.
903 * This routine will cleanup posted ELS buffers after the HBA is reset
904 * when bringing down the SLI Layer.
911 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
913 struct lpfc_sli *psli = &phba->sli;
914 struct lpfc_sli_ring *pring;
915 struct lpfc_dmabuf *mp, *next_mp;
919 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
920 lpfc_sli_hbqbuf_free_all(phba);
922 /* Cleanup preposted buffers on the ELS ring */
923 pring = &psli->sli3_ring[LPFC_ELS_RING];
924 spin_lock_irq(&phba->hbalock);
925 list_splice_init(&pring->postbufq, &buflist);
926 spin_unlock_irq(&phba->hbalock);
929 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
932 lpfc_mbuf_free(phba, mp->virt, mp->phys);
936 spin_lock_irq(&phba->hbalock);
937 pring->postbufq_cnt -= count;
938 spin_unlock_irq(&phba->hbalock);
943 * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
944 * @phba: pointer to lpfc HBA data structure.
946 * This routine will cleanup the txcmplq after the HBA is reset when bringing
947 * down the SLI Layer.
953 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
955 struct lpfc_sli *psli = &phba->sli;
956 struct lpfc_queue *qp = NULL;
957 struct lpfc_sli_ring *pring;
958 LIST_HEAD(completions);
961 if (phba->sli_rev != LPFC_SLI_REV4) {
962 for (i = 0; i < psli->num_rings; i++) {
963 pring = &psli->sli3_ring[i];
964 spin_lock_irq(&phba->hbalock);
965 /* At this point in time the HBA is either reset or DOA
966 * Nothing should be on txcmplq as it will
969 list_splice_init(&pring->txcmplq, &completions);
970 pring->txcmplq_cnt = 0;
971 spin_unlock_irq(&phba->hbalock);
973 lpfc_sli_abort_iocb_ring(phba, pring);
975 /* Cancel all the IOCBs from the completions list */
976 lpfc_sli_cancel_iocbs(phba, &completions,
977 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
980 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
984 spin_lock_irq(&pring->ring_lock);
985 list_splice_init(&pring->txcmplq, &completions);
986 pring->txcmplq_cnt = 0;
987 spin_unlock_irq(&pring->ring_lock);
988 lpfc_sli_abort_iocb_ring(phba, pring);
990 /* Cancel all the IOCBs from the completions list */
991 lpfc_sli_cancel_iocbs(phba, &completions,
992 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
996 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
998 * @phba: pointer to lpfc HBA data structure.
1000 * This routine will do uninitialization after the HBA is reset when bring
1001 * down the SLI Layer.
1005 * Any other value - error.
1008 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1010 lpfc_hba_free_post_buf(phba);
1011 lpfc_hba_clean_txcmplq(phba);
1016 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1017 * @phba: pointer to lpfc HBA data structure.
1019 * This routine will do uninitialization after the HBA is reset when bring
1020 * down the SLI Layer.
1024 * Any other value - error.
1027 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1029 struct lpfc_scsi_buf *psb, *psb_next;
1030 struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next;
1032 LIST_HEAD(nvme_aborts);
1033 LIST_HEAD(nvmet_aborts);
1034 unsigned long iflag = 0;
1035 struct lpfc_sglq *sglq_entry = NULL;
1038 lpfc_sli_hbqbuf_free_all(phba);
1039 lpfc_hba_clean_txcmplq(phba);
1041 /* At this point in time the HBA is either reset or DOA. Either
1042 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1043 * on the lpfc_els_sgl_list so that it can either be freed if the
1044 * driver is unloading or reposted if the driver is restarting
1047 spin_lock_irq(&phba->hbalock); /* required for lpfc_els_sgl_list and */
1049 /* sgl_list_lock required because worker thread uses this
1052 spin_lock(&phba->sli4_hba.sgl_list_lock);
1053 list_for_each_entry(sglq_entry,
1054 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1055 sglq_entry->state = SGL_FREED;
1057 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1058 &phba->sli4_hba.lpfc_els_sgl_list);
1061 spin_unlock(&phba->sli4_hba.sgl_list_lock);
1062 /* abts_scsi_buf_list_lock required because worker thread uses this
1065 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
1066 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1067 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1069 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1072 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1073 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock);
1074 list_splice_init(&phba->sli4_hba.lpfc_abts_nvme_buf_list,
1076 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1078 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock);
1081 spin_unlock_irq(&phba->hbalock);
1083 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1085 psb->status = IOSTAT_SUCCESS;
1087 spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1088 list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1089 spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1091 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1092 list_for_each_entry_safe(psb, psb_next, &nvme_aborts, list) {
1094 psb->status = IOSTAT_SUCCESS;
1096 spin_lock_irqsave(&phba->nvme_buf_list_put_lock, iflag);
1097 list_splice(&nvme_aborts, &phba->lpfc_nvme_buf_list_put);
1098 spin_unlock_irqrestore(&phba->nvme_buf_list_put_lock, iflag);
1100 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1101 ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP);
1102 lpfc_nvmet_rq_post(phba, ctxp, &ctxp->rqb_buffer->hbuf);
1106 lpfc_sli4_free_sp_events(phba);
1111 * lpfc_hba_down_post - Wrapper func for hba down post routine
1112 * @phba: pointer to lpfc HBA data structure.
1114 * This routine wraps the actual SLI3 or SLI4 routine for performing
1115 * uninitialization after the HBA is reset when bring down the SLI Layer.
1119 * Any other value - error.
1122 lpfc_hba_down_post(struct lpfc_hba *phba)
1124 return (*phba->lpfc_hba_down_post)(phba);
1128 * lpfc_hb_timeout - The HBA-timer timeout handler
1129 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1131 * This is the HBA-timer timeout handler registered to the lpfc driver. When
1132 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1133 * work-port-events bitmap and the worker thread is notified. This timeout
1134 * event will be used by the worker thread to invoke the actual timeout
1135 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1136 * be performed in the timeout handler and the HBA timeout event bit shall
1137 * be cleared by the worker thread after it has taken the event bitmap out.
1140 lpfc_hb_timeout(unsigned long ptr)
1142 struct lpfc_hba *phba;
1143 uint32_t tmo_posted;
1144 unsigned long iflag;
1146 phba = (struct lpfc_hba *)ptr;
1148 /* Check for heart beat timeout conditions */
1149 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1150 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1152 phba->pport->work_port_events |= WORKER_HB_TMO;
1153 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1155 /* Tell the worker thread there is work to do */
1157 lpfc_worker_wake_up(phba);
1162 * lpfc_rrq_timeout - The RRQ-timer timeout handler
1163 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1165 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1166 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1167 * work-port-events bitmap and the worker thread is notified. This timeout
1168 * event will be used by the worker thread to invoke the actual timeout
1169 * handler routine, lpfc_rrq_handler. Any periodical operations will
1170 * be performed in the timeout handler and the RRQ timeout event bit shall
1171 * be cleared by the worker thread after it has taken the event bitmap out.
1174 lpfc_rrq_timeout(unsigned long ptr)
1176 struct lpfc_hba *phba;
1177 unsigned long iflag;
1179 phba = (struct lpfc_hba *)ptr;
1180 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1181 if (!(phba->pport->load_flag & FC_UNLOADING))
1182 phba->hba_flag |= HBA_RRQ_ACTIVE;
1184 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1185 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1187 if (!(phba->pport->load_flag & FC_UNLOADING))
1188 lpfc_worker_wake_up(phba);
1192 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1193 * @phba: pointer to lpfc hba data structure.
1194 * @pmboxq: pointer to the driver internal queue element for mailbox command.
1196 * This is the callback function to the lpfc heart-beat mailbox command.
1197 * If configured, the lpfc driver issues the heart-beat mailbox command to
1198 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1199 * heart-beat mailbox command is issued, the driver shall set up heart-beat
1200 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1201 * heart-beat outstanding state. Once the mailbox command comes back and
1202 * no error conditions detected, the heart-beat mailbox command timer is
1203 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1204 * state is cleared for the next heart-beat. If the timer expired with the
1205 * heart-beat outstanding state set, the driver will put the HBA offline.
1208 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1210 unsigned long drvr_flag;
1212 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1213 phba->hb_outstanding = 0;
1214 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1216 /* Check and reset heart-beat timer is necessary */
1217 mempool_free(pmboxq, phba->mbox_mem_pool);
1218 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1219 !(phba->link_state == LPFC_HBA_ERROR) &&
1220 !(phba->pport->load_flag & FC_UNLOADING))
1221 mod_timer(&phba->hb_tmofunc,
1223 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1228 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1229 * @phba: pointer to lpfc hba data structure.
1231 * This is the actual HBA-timer timeout handler to be invoked by the worker
1232 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1233 * handler performs any periodic operations needed for the device. If such
1234 * periodic event has already been attended to either in the interrupt handler
1235 * or by processing slow-ring or fast-ring events within the HBA-timer
1236 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1237 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1238 * is configured and there is no heart-beat mailbox command outstanding, a
1239 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1240 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1244 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1246 struct lpfc_vport **vports;
1247 LPFC_MBOXQ_t *pmboxq;
1248 struct lpfc_dmabuf *buf_ptr;
1250 struct lpfc_sli *psli = &phba->sli;
1251 LIST_HEAD(completions);
1253 vports = lpfc_create_vport_work_array(phba);
1255 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1256 lpfc_rcv_seq_check_edtov(vports[i]);
1257 lpfc_fdmi_num_disc_check(vports[i]);
1259 lpfc_destroy_vport_work_array(phba, vports);
1261 if ((phba->link_state == LPFC_HBA_ERROR) ||
1262 (phba->pport->load_flag & FC_UNLOADING) ||
1263 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1266 spin_lock_irq(&phba->pport->work_port_lock);
1268 if (time_after(phba->last_completion_time +
1269 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1271 spin_unlock_irq(&phba->pport->work_port_lock);
1272 if (!phba->hb_outstanding)
1273 mod_timer(&phba->hb_tmofunc,
1275 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1277 mod_timer(&phba->hb_tmofunc,
1279 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1282 spin_unlock_irq(&phba->pport->work_port_lock);
1284 if (phba->elsbuf_cnt &&
1285 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1286 spin_lock_irq(&phba->hbalock);
1287 list_splice_init(&phba->elsbuf, &completions);
1288 phba->elsbuf_cnt = 0;
1289 phba->elsbuf_prev_cnt = 0;
1290 spin_unlock_irq(&phba->hbalock);
1292 while (!list_empty(&completions)) {
1293 list_remove_head(&completions, buf_ptr,
1294 struct lpfc_dmabuf, list);
1295 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1299 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1301 /* If there is no heart beat outstanding, issue a heartbeat command */
1302 if (phba->cfg_enable_hba_heartbeat) {
1303 if (!phba->hb_outstanding) {
1304 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1305 (list_empty(&psli->mboxq))) {
1306 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1309 mod_timer(&phba->hb_tmofunc,
1311 msecs_to_jiffies(1000 *
1312 LPFC_HB_MBOX_INTERVAL));
1316 lpfc_heart_beat(phba, pmboxq);
1317 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1318 pmboxq->vport = phba->pport;
1319 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1322 if (retval != MBX_BUSY &&
1323 retval != MBX_SUCCESS) {
1324 mempool_free(pmboxq,
1325 phba->mbox_mem_pool);
1326 mod_timer(&phba->hb_tmofunc,
1328 msecs_to_jiffies(1000 *
1329 LPFC_HB_MBOX_INTERVAL));
1332 phba->skipped_hb = 0;
1333 phba->hb_outstanding = 1;
1334 } else if (time_before_eq(phba->last_completion_time,
1335 phba->skipped_hb)) {
1336 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1337 "2857 Last completion time not "
1338 " updated in %d ms\n",
1339 jiffies_to_msecs(jiffies
1340 - phba->last_completion_time));
1342 phba->skipped_hb = jiffies;
1344 mod_timer(&phba->hb_tmofunc,
1346 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1350 * If heart beat timeout called with hb_outstanding set
1351 * we need to give the hb mailbox cmd a chance to
1354 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1355 "0459 Adapter heartbeat still out"
1356 "standing:last compl time was %d ms.\n",
1357 jiffies_to_msecs(jiffies
1358 - phba->last_completion_time));
1359 mod_timer(&phba->hb_tmofunc,
1361 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1364 mod_timer(&phba->hb_tmofunc,
1366 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1371 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1372 * @phba: pointer to lpfc hba data structure.
1374 * This routine is called to bring the HBA offline when HBA hardware error
1375 * other than Port Error 6 has been detected.
1378 lpfc_offline_eratt(struct lpfc_hba *phba)
1380 struct lpfc_sli *psli = &phba->sli;
1382 spin_lock_irq(&phba->hbalock);
1383 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1384 spin_unlock_irq(&phba->hbalock);
1385 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1388 lpfc_reset_barrier(phba);
1389 spin_lock_irq(&phba->hbalock);
1390 lpfc_sli_brdreset(phba);
1391 spin_unlock_irq(&phba->hbalock);
1392 lpfc_hba_down_post(phba);
1393 lpfc_sli_brdready(phba, HS_MBRDY);
1394 lpfc_unblock_mgmt_io(phba);
1395 phba->link_state = LPFC_HBA_ERROR;
1400 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1401 * @phba: pointer to lpfc hba data structure.
1403 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1404 * other than Port Error 6 has been detected.
1407 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1409 spin_lock_irq(&phba->hbalock);
1410 phba->link_state = LPFC_HBA_ERROR;
1411 spin_unlock_irq(&phba->hbalock);
1413 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1415 lpfc_hba_down_post(phba);
1416 lpfc_unblock_mgmt_io(phba);
1420 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1421 * @phba: pointer to lpfc hba data structure.
1423 * This routine is invoked to handle the deferred HBA hardware error
1424 * conditions. This type of error is indicated by HBA by setting ER1
1425 * and another ER bit in the host status register. The driver will
1426 * wait until the ER1 bit clears before handling the error condition.
1429 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1431 uint32_t old_host_status = phba->work_hs;
1432 struct lpfc_sli *psli = &phba->sli;
1434 /* If the pci channel is offline, ignore possible errors,
1435 * since we cannot communicate with the pci card anyway.
1437 if (pci_channel_offline(phba->pcidev)) {
1438 spin_lock_irq(&phba->hbalock);
1439 phba->hba_flag &= ~DEFER_ERATT;
1440 spin_unlock_irq(&phba->hbalock);
1444 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1445 "0479 Deferred Adapter Hardware Error "
1446 "Data: x%x x%x x%x\n",
1448 phba->work_status[0], phba->work_status[1]);
1450 spin_lock_irq(&phba->hbalock);
1451 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1452 spin_unlock_irq(&phba->hbalock);
1456 * Firmware stops when it triggred erratt. That could cause the I/Os
1457 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1458 * SCSI layer retry it after re-establishing link.
1460 lpfc_sli_abort_fcp_rings(phba);
1463 * There was a firmware error. Take the hba offline and then
1464 * attempt to restart it.
1466 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1469 /* Wait for the ER1 bit to clear.*/
1470 while (phba->work_hs & HS_FFER1) {
1472 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1473 phba->work_hs = UNPLUG_ERR ;
1476 /* If driver is unloading let the worker thread continue */
1477 if (phba->pport->load_flag & FC_UNLOADING) {
1484 * This is to ptrotect against a race condition in which
1485 * first write to the host attention register clear the
1486 * host status register.
1488 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1489 phba->work_hs = old_host_status & ~HS_FFER1;
1491 spin_lock_irq(&phba->hbalock);
1492 phba->hba_flag &= ~DEFER_ERATT;
1493 spin_unlock_irq(&phba->hbalock);
1494 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1495 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1499 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1501 struct lpfc_board_event_header board_event;
1502 struct Scsi_Host *shost;
1504 board_event.event_type = FC_REG_BOARD_EVENT;
1505 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1506 shost = lpfc_shost_from_vport(phba->pport);
1507 fc_host_post_vendor_event(shost, fc_get_event_number(),
1508 sizeof(board_event),
1509 (char *) &board_event,
1514 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1515 * @phba: pointer to lpfc hba data structure.
1517 * This routine is invoked to handle the following HBA hardware error
1519 * 1 - HBA error attention interrupt
1520 * 2 - DMA ring index out of range
1521 * 3 - Mailbox command came back as unknown
1524 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1526 struct lpfc_vport *vport = phba->pport;
1527 struct lpfc_sli *psli = &phba->sli;
1528 uint32_t event_data;
1529 unsigned long temperature;
1530 struct temp_event temp_event_data;
1531 struct Scsi_Host *shost;
1533 /* If the pci channel is offline, ignore possible errors,
1534 * since we cannot communicate with the pci card anyway.
1536 if (pci_channel_offline(phba->pcidev)) {
1537 spin_lock_irq(&phba->hbalock);
1538 phba->hba_flag &= ~DEFER_ERATT;
1539 spin_unlock_irq(&phba->hbalock);
1543 /* If resets are disabled then leave the HBA alone and return */
1544 if (!phba->cfg_enable_hba_reset)
1547 /* Send an internal error event to mgmt application */
1548 lpfc_board_errevt_to_mgmt(phba);
1550 if (phba->hba_flag & DEFER_ERATT)
1551 lpfc_handle_deferred_eratt(phba);
1553 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1554 if (phba->work_hs & HS_FFER6)
1555 /* Re-establishing Link */
1556 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1557 "1301 Re-establishing Link "
1558 "Data: x%x x%x x%x\n",
1559 phba->work_hs, phba->work_status[0],
1560 phba->work_status[1]);
1561 if (phba->work_hs & HS_FFER8)
1562 /* Device Zeroization */
1563 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1564 "2861 Host Authentication device "
1565 "zeroization Data:x%x x%x x%x\n",
1566 phba->work_hs, phba->work_status[0],
1567 phba->work_status[1]);
1569 spin_lock_irq(&phba->hbalock);
1570 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1571 spin_unlock_irq(&phba->hbalock);
1574 * Firmware stops when it triggled erratt with HS_FFER6.
1575 * That could cause the I/Os dropped by the firmware.
1576 * Error iocb (I/O) on txcmplq and let the SCSI layer
1577 * retry it after re-establishing link.
1579 lpfc_sli_abort_fcp_rings(phba);
1582 * There was a firmware error. Take the hba offline and then
1583 * attempt to restart it.
1585 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1587 lpfc_sli_brdrestart(phba);
1588 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1589 lpfc_unblock_mgmt_io(phba);
1592 lpfc_unblock_mgmt_io(phba);
1593 } else if (phba->work_hs & HS_CRIT_TEMP) {
1594 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1595 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1596 temp_event_data.event_code = LPFC_CRIT_TEMP;
1597 temp_event_data.data = (uint32_t)temperature;
1599 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1600 "0406 Adapter maximum temperature exceeded "
1601 "(%ld), taking this port offline "
1602 "Data: x%x x%x x%x\n",
1603 temperature, phba->work_hs,
1604 phba->work_status[0], phba->work_status[1]);
1606 shost = lpfc_shost_from_vport(phba->pport);
1607 fc_host_post_vendor_event(shost, fc_get_event_number(),
1608 sizeof(temp_event_data),
1609 (char *) &temp_event_data,
1610 SCSI_NL_VID_TYPE_PCI
1611 | PCI_VENDOR_ID_EMULEX);
1613 spin_lock_irq(&phba->hbalock);
1614 phba->over_temp_state = HBA_OVER_TEMP;
1615 spin_unlock_irq(&phba->hbalock);
1616 lpfc_offline_eratt(phba);
1619 /* The if clause above forces this code path when the status
1620 * failure is a value other than FFER6. Do not call the offline
1621 * twice. This is the adapter hardware error path.
1623 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1624 "0457 Adapter Hardware Error "
1625 "Data: x%x x%x x%x\n",
1627 phba->work_status[0], phba->work_status[1]);
1629 event_data = FC_REG_DUMP_EVENT;
1630 shost = lpfc_shost_from_vport(vport);
1631 fc_host_post_vendor_event(shost, fc_get_event_number(),
1632 sizeof(event_data), (char *) &event_data,
1633 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1635 lpfc_offline_eratt(phba);
1641 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1642 * @phba: pointer to lpfc hba data structure.
1643 * @mbx_action: flag for mailbox shutdown action.
1645 * This routine is invoked to perform an SLI4 port PCI function reset in
1646 * response to port status register polling attention. It waits for port
1647 * status register (ERR, RDY, RN) bits before proceeding with function reset.
1648 * During this process, interrupt vectors are freed and later requested
1649 * for handling possible port resource change.
1652 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1658 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
1659 LPFC_SLI_INTF_IF_TYPE_2) {
1661 * On error status condition, driver need to wait for port
1662 * ready before performing reset.
1664 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1669 /* need reset: attempt for port recovery */
1671 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1672 "2887 Reset Needed: Attempting Port "
1674 lpfc_offline_prep(phba, mbx_action);
1676 /* release interrupt for possible resource change */
1677 lpfc_sli4_disable_intr(phba);
1678 lpfc_sli_brdrestart(phba);
1679 /* request and enable interrupt */
1680 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1681 if (intr_mode == LPFC_INTR_ERROR) {
1682 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1683 "3175 Failed to enable interrupt\n");
1686 phba->intr_mode = intr_mode;
1687 rc = lpfc_online(phba);
1689 lpfc_unblock_mgmt_io(phba);
1695 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1696 * @phba: pointer to lpfc hba data structure.
1698 * This routine is invoked to handle the SLI4 HBA hardware error attention
1702 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1704 struct lpfc_vport *vport = phba->pport;
1705 uint32_t event_data;
1706 struct Scsi_Host *shost;
1708 struct lpfc_register portstat_reg = {0};
1709 uint32_t reg_err1, reg_err2;
1710 uint32_t uerrlo_reg, uemasklo_reg;
1711 uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1712 bool en_rn_msg = true;
1713 struct temp_event temp_event_data;
1714 struct lpfc_register portsmphr_reg;
1717 /* If the pci channel is offline, ignore possible errors, since
1718 * we cannot communicate with the pci card anyway.
1720 if (pci_channel_offline(phba->pcidev))
1723 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1724 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1726 case LPFC_SLI_INTF_IF_TYPE_0:
1727 pci_rd_rc1 = lpfc_readl(
1728 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1730 pci_rd_rc2 = lpfc_readl(
1731 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1733 /* consider PCI bus read error as pci_channel_offline */
1734 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1736 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1737 lpfc_sli4_offline_eratt(phba);
1740 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1741 "7623 Checking UE recoverable");
1743 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1744 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1745 &portsmphr_reg.word0))
1748 smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1750 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1751 LPFC_PORT_SEM_UE_RECOVERABLE)
1753 /*Sleep for 1Sec, before checking SEMAPHORE */
1757 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1758 "4827 smphr_port_status x%x : Waited %dSec",
1759 smphr_port_status, i);
1761 /* Recoverable UE, reset the HBA device */
1762 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1763 LPFC_PORT_SEM_UE_RECOVERABLE) {
1764 for (i = 0; i < 20; i++) {
1766 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1767 &portsmphr_reg.word0) &&
1768 (LPFC_POST_STAGE_PORT_READY ==
1769 bf_get(lpfc_port_smphr_port_status,
1771 rc = lpfc_sli4_port_sta_fn_reset(phba,
1772 LPFC_MBX_NO_WAIT, en_rn_msg);
1775 lpfc_printf_log(phba,
1777 "4215 Failed to recover UE");
1782 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1783 "7624 Firmware not ready: Failing UE recovery,"
1784 " waited %dSec", i);
1785 lpfc_sli4_offline_eratt(phba);
1788 case LPFC_SLI_INTF_IF_TYPE_2:
1789 pci_rd_rc1 = lpfc_readl(
1790 phba->sli4_hba.u.if_type2.STATUSregaddr,
1791 &portstat_reg.word0);
1792 /* consider PCI bus read error as pci_channel_offline */
1793 if (pci_rd_rc1 == -EIO) {
1794 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1795 "3151 PCI bus read access failure: x%x\n",
1796 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1799 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1800 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1801 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1802 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1803 "2889 Port Overtemperature event, "
1804 "taking port offline Data: x%x x%x\n",
1805 reg_err1, reg_err2);
1807 phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1808 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1809 temp_event_data.event_code = LPFC_CRIT_TEMP;
1810 temp_event_data.data = 0xFFFFFFFF;
1812 shost = lpfc_shost_from_vport(phba->pport);
1813 fc_host_post_vendor_event(shost, fc_get_event_number(),
1814 sizeof(temp_event_data),
1815 (char *)&temp_event_data,
1816 SCSI_NL_VID_TYPE_PCI
1817 | PCI_VENDOR_ID_EMULEX);
1819 spin_lock_irq(&phba->hbalock);
1820 phba->over_temp_state = HBA_OVER_TEMP;
1821 spin_unlock_irq(&phba->hbalock);
1822 lpfc_sli4_offline_eratt(phba);
1825 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1826 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1827 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1828 "3143 Port Down: Firmware Update "
1831 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1832 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1833 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1834 "3144 Port Down: Debug Dump\n");
1835 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1836 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1837 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1838 "3145 Port Down: Provisioning\n");
1840 /* If resets are disabled then leave the HBA alone and return */
1841 if (!phba->cfg_enable_hba_reset)
1844 /* Check port status register for function reset */
1845 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1848 /* don't report event on forced debug dump */
1849 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1850 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1855 /* fall through for not able to recover */
1856 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1857 "3152 Unrecoverable error, bring the port "
1859 lpfc_sli4_offline_eratt(phba);
1861 case LPFC_SLI_INTF_IF_TYPE_1:
1865 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1866 "3123 Report dump event to upper layer\n");
1867 /* Send an internal error event to mgmt application */
1868 lpfc_board_errevt_to_mgmt(phba);
1870 event_data = FC_REG_DUMP_EVENT;
1871 shost = lpfc_shost_from_vport(vport);
1872 fc_host_post_vendor_event(shost, fc_get_event_number(),
1873 sizeof(event_data), (char *) &event_data,
1874 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1878 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1879 * @phba: pointer to lpfc HBA data structure.
1881 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1882 * routine from the API jump table function pointer from the lpfc_hba struct.
1886 * Any other value - error.
1889 lpfc_handle_eratt(struct lpfc_hba *phba)
1891 (*phba->lpfc_handle_eratt)(phba);
1895 * lpfc_handle_latt - The HBA link event handler
1896 * @phba: pointer to lpfc hba data structure.
1898 * This routine is invoked from the worker thread to handle a HBA host
1899 * attention link event. SLI3 only.
1902 lpfc_handle_latt(struct lpfc_hba *phba)
1904 struct lpfc_vport *vport = phba->pport;
1905 struct lpfc_sli *psli = &phba->sli;
1907 volatile uint32_t control;
1908 struct lpfc_dmabuf *mp;
1911 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1914 goto lpfc_handle_latt_err_exit;
1917 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1920 goto lpfc_handle_latt_free_pmb;
1923 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1926 goto lpfc_handle_latt_free_mp;
1929 /* Cleanup any outstanding ELS commands */
1930 lpfc_els_flush_all_cmd(phba);
1932 psli->slistat.link_event++;
1933 lpfc_read_topology(phba, pmb, mp);
1934 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1936 /* Block ELS IOCBs until we have processed this mbox command */
1937 phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1938 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1939 if (rc == MBX_NOT_FINISHED) {
1941 goto lpfc_handle_latt_free_mbuf;
1944 /* Clear Link Attention in HA REG */
1945 spin_lock_irq(&phba->hbalock);
1946 writel(HA_LATT, phba->HAregaddr);
1947 readl(phba->HAregaddr); /* flush */
1948 spin_unlock_irq(&phba->hbalock);
1952 lpfc_handle_latt_free_mbuf:
1953 phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1954 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1955 lpfc_handle_latt_free_mp:
1957 lpfc_handle_latt_free_pmb:
1958 mempool_free(pmb, phba->mbox_mem_pool);
1959 lpfc_handle_latt_err_exit:
1960 /* Enable Link attention interrupts */
1961 spin_lock_irq(&phba->hbalock);
1962 psli->sli_flag |= LPFC_PROCESS_LA;
1963 control = readl(phba->HCregaddr);
1964 control |= HC_LAINT_ENA;
1965 writel(control, phba->HCregaddr);
1966 readl(phba->HCregaddr); /* flush */
1968 /* Clear Link Attention in HA REG */
1969 writel(HA_LATT, phba->HAregaddr);
1970 readl(phba->HAregaddr); /* flush */
1971 spin_unlock_irq(&phba->hbalock);
1972 lpfc_linkdown(phba);
1973 phba->link_state = LPFC_HBA_ERROR;
1975 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1976 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1982 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1983 * @phba: pointer to lpfc hba data structure.
1984 * @vpd: pointer to the vital product data.
1985 * @len: length of the vital product data in bytes.
1987 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1988 * an array of characters. In this routine, the ModelName, ProgramType, and
1989 * ModelDesc, etc. fields of the phba data structure will be populated.
1992 * 0 - pointer to the VPD passed in is NULL
1996 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1998 uint8_t lenlo, lenhi;
2008 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2009 "0455 Vital Product Data: x%x x%x x%x x%x\n",
2010 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2012 while (!finished && (index < (len - 4))) {
2013 switch (vpd[index]) {
2021 i = ((((unsigned short)lenhi) << 8) + lenlo);
2030 Length = ((((unsigned short)lenhi) << 8) + lenlo);
2031 if (Length > len - index)
2032 Length = len - index;
2033 while (Length > 0) {
2034 /* Look for Serial Number */
2035 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2042 phba->SerialNumber[j++] = vpd[index++];
2046 phba->SerialNumber[j] = 0;
2049 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2050 phba->vpd_flag |= VPD_MODEL_DESC;
2057 phba->ModelDesc[j++] = vpd[index++];
2061 phba->ModelDesc[j] = 0;
2064 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2065 phba->vpd_flag |= VPD_MODEL_NAME;
2072 phba->ModelName[j++] = vpd[index++];
2076 phba->ModelName[j] = 0;
2079 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2080 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2087 phba->ProgramType[j++] = vpd[index++];
2091 phba->ProgramType[j] = 0;
2094 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2095 phba->vpd_flag |= VPD_PORT;
2102 if ((phba->sli_rev == LPFC_SLI_REV4) &&
2103 (phba->sli4_hba.pport_name_sta ==
2104 LPFC_SLI4_PPNAME_GET)) {
2108 phba->Port[j++] = vpd[index++];
2112 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2113 (phba->sli4_hba.pport_name_sta ==
2114 LPFC_SLI4_PPNAME_NON))
2141 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2142 * @phba: pointer to lpfc hba data structure.
2143 * @mdp: pointer to the data structure to hold the derived model name.
2144 * @descp: pointer to the data structure to hold the derived description.
2146 * This routine retrieves HBA's description based on its registered PCI device
2147 * ID. The @descp passed into this function points to an array of 256 chars. It
2148 * shall be returned with the model name, maximum speed, and the host bus type.
2149 * The @mdp passed into this function points to an array of 80 chars. When the
2150 * function returns, the @mdp will be filled with the model name.
2153 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2156 uint16_t dev_id = phba->pcidev->device;
2159 int oneConnect = 0; /* default is not a oneConnect */
2164 } m = {"<Unknown>", "", ""};
2166 if (mdp && mdp[0] != '\0'
2167 && descp && descp[0] != '\0')
2170 if (phba->lmt & LMT_32Gb)
2172 else if (phba->lmt & LMT_16Gb)
2174 else if (phba->lmt & LMT_10Gb)
2176 else if (phba->lmt & LMT_8Gb)
2178 else if (phba->lmt & LMT_4Gb)
2180 else if (phba->lmt & LMT_2Gb)
2182 else if (phba->lmt & LMT_1Gb)
2190 case PCI_DEVICE_ID_FIREFLY:
2191 m = (typeof(m)){"LP6000", "PCI",
2192 "Obsolete, Unsupported Fibre Channel Adapter"};
2194 case PCI_DEVICE_ID_SUPERFLY:
2195 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2196 m = (typeof(m)){"LP7000", "PCI", ""};
2198 m = (typeof(m)){"LP7000E", "PCI", ""};
2199 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2201 case PCI_DEVICE_ID_DRAGONFLY:
2202 m = (typeof(m)){"LP8000", "PCI",
2203 "Obsolete, Unsupported Fibre Channel Adapter"};
2205 case PCI_DEVICE_ID_CENTAUR:
2206 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2207 m = (typeof(m)){"LP9002", "PCI", ""};
2209 m = (typeof(m)){"LP9000", "PCI", ""};
2210 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2212 case PCI_DEVICE_ID_RFLY:
2213 m = (typeof(m)){"LP952", "PCI",
2214 "Obsolete, Unsupported Fibre Channel Adapter"};
2216 case PCI_DEVICE_ID_PEGASUS:
2217 m = (typeof(m)){"LP9802", "PCI-X",
2218 "Obsolete, Unsupported Fibre Channel Adapter"};
2220 case PCI_DEVICE_ID_THOR:
2221 m = (typeof(m)){"LP10000", "PCI-X",
2222 "Obsolete, Unsupported Fibre Channel Adapter"};
2224 case PCI_DEVICE_ID_VIPER:
2225 m = (typeof(m)){"LPX1000", "PCI-X",
2226 "Obsolete, Unsupported Fibre Channel Adapter"};
2228 case PCI_DEVICE_ID_PFLY:
2229 m = (typeof(m)){"LP982", "PCI-X",
2230 "Obsolete, Unsupported Fibre Channel Adapter"};
2232 case PCI_DEVICE_ID_TFLY:
2233 m = (typeof(m)){"LP1050", "PCI-X",
2234 "Obsolete, Unsupported Fibre Channel Adapter"};
2236 case PCI_DEVICE_ID_HELIOS:
2237 m = (typeof(m)){"LP11000", "PCI-X2",
2238 "Obsolete, Unsupported Fibre Channel Adapter"};
2240 case PCI_DEVICE_ID_HELIOS_SCSP:
2241 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2242 "Obsolete, Unsupported Fibre Channel Adapter"};
2244 case PCI_DEVICE_ID_HELIOS_DCSP:
2245 m = (typeof(m)){"LP11002-SP", "PCI-X2",
2246 "Obsolete, Unsupported Fibre Channel Adapter"};
2248 case PCI_DEVICE_ID_NEPTUNE:
2249 m = (typeof(m)){"LPe1000", "PCIe",
2250 "Obsolete, Unsupported Fibre Channel Adapter"};
2252 case PCI_DEVICE_ID_NEPTUNE_SCSP:
2253 m = (typeof(m)){"LPe1000-SP", "PCIe",
2254 "Obsolete, Unsupported Fibre Channel Adapter"};
2256 case PCI_DEVICE_ID_NEPTUNE_DCSP:
2257 m = (typeof(m)){"LPe1002-SP", "PCIe",
2258 "Obsolete, Unsupported Fibre Channel Adapter"};
2260 case PCI_DEVICE_ID_BMID:
2261 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2263 case PCI_DEVICE_ID_BSMB:
2264 m = (typeof(m)){"LP111", "PCI-X2",
2265 "Obsolete, Unsupported Fibre Channel Adapter"};
2267 case PCI_DEVICE_ID_ZEPHYR:
2268 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2270 case PCI_DEVICE_ID_ZEPHYR_SCSP:
2271 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2273 case PCI_DEVICE_ID_ZEPHYR_DCSP:
2274 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2277 case PCI_DEVICE_ID_ZMID:
2278 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2280 case PCI_DEVICE_ID_ZSMB:
2281 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2283 case PCI_DEVICE_ID_LP101:
2284 m = (typeof(m)){"LP101", "PCI-X",
2285 "Obsolete, Unsupported Fibre Channel Adapter"};
2287 case PCI_DEVICE_ID_LP10000S:
2288 m = (typeof(m)){"LP10000-S", "PCI",
2289 "Obsolete, Unsupported Fibre Channel Adapter"};
2291 case PCI_DEVICE_ID_LP11000S:
2292 m = (typeof(m)){"LP11000-S", "PCI-X2",
2293 "Obsolete, Unsupported Fibre Channel Adapter"};
2295 case PCI_DEVICE_ID_LPE11000S:
2296 m = (typeof(m)){"LPe11000-S", "PCIe",
2297 "Obsolete, Unsupported Fibre Channel Adapter"};
2299 case PCI_DEVICE_ID_SAT:
2300 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2302 case PCI_DEVICE_ID_SAT_MID:
2303 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2305 case PCI_DEVICE_ID_SAT_SMB:
2306 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2308 case PCI_DEVICE_ID_SAT_DCSP:
2309 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2311 case PCI_DEVICE_ID_SAT_SCSP:
2312 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2314 case PCI_DEVICE_ID_SAT_S:
2315 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2317 case PCI_DEVICE_ID_HORNET:
2318 m = (typeof(m)){"LP21000", "PCIe",
2319 "Obsolete, Unsupported FCoE Adapter"};
2322 case PCI_DEVICE_ID_PROTEUS_VF:
2323 m = (typeof(m)){"LPev12000", "PCIe IOV",
2324 "Obsolete, Unsupported Fibre Channel Adapter"};
2326 case PCI_DEVICE_ID_PROTEUS_PF:
2327 m = (typeof(m)){"LPev12000", "PCIe IOV",
2328 "Obsolete, Unsupported Fibre Channel Adapter"};
2330 case PCI_DEVICE_ID_PROTEUS_S:
2331 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2332 "Obsolete, Unsupported Fibre Channel Adapter"};
2334 case PCI_DEVICE_ID_TIGERSHARK:
2336 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2338 case PCI_DEVICE_ID_TOMCAT:
2340 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2342 case PCI_DEVICE_ID_FALCON:
2343 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2344 "EmulexSecure Fibre"};
2346 case PCI_DEVICE_ID_BALIUS:
2347 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2348 "Obsolete, Unsupported Fibre Channel Adapter"};
2350 case PCI_DEVICE_ID_LANCER_FC:
2351 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2353 case PCI_DEVICE_ID_LANCER_FC_VF:
2354 m = (typeof(m)){"LPe16000", "PCIe",
2355 "Obsolete, Unsupported Fibre Channel Adapter"};
2357 case PCI_DEVICE_ID_LANCER_FCOE:
2359 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2361 case PCI_DEVICE_ID_LANCER_FCOE_VF:
2363 m = (typeof(m)){"OCe15100", "PCIe",
2364 "Obsolete, Unsupported FCoE"};
2366 case PCI_DEVICE_ID_LANCER_G6_FC:
2367 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2369 case PCI_DEVICE_ID_SKYHAWK:
2370 case PCI_DEVICE_ID_SKYHAWK_VF:
2372 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2375 m = (typeof(m)){"Unknown", "", ""};
2379 if (mdp && mdp[0] == '\0')
2380 snprintf(mdp, 79,"%s", m.name);
2382 * oneConnect hba requires special processing, they are all initiators
2383 * and we put the port number on the end
2385 if (descp && descp[0] == '\0') {
2387 snprintf(descp, 255,
2388 "Emulex OneConnect %s, %s Initiator %s",
2391 else if (max_speed == 0)
2392 snprintf(descp, 255,
2394 m.name, m.bus, m.function);
2396 snprintf(descp, 255,
2397 "Emulex %s %d%s %s %s",
2398 m.name, max_speed, (GE) ? "GE" : "Gb",
2404 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2405 * @phba: pointer to lpfc hba data structure.
2406 * @pring: pointer to a IOCB ring.
2407 * @cnt: the number of IOCBs to be posted to the IOCB ring.
2409 * This routine posts a given number of IOCBs with the associated DMA buffer
2410 * descriptors specified by the cnt argument to the given IOCB ring.
2413 * The number of IOCBs NOT able to be posted to the IOCB ring.
2416 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2419 struct lpfc_iocbq *iocb;
2420 struct lpfc_dmabuf *mp1, *mp2;
2422 cnt += pring->missbufcnt;
2424 /* While there are buffers to post */
2426 /* Allocate buffer for command iocb */
2427 iocb = lpfc_sli_get_iocbq(phba);
2429 pring->missbufcnt = cnt;
2434 /* 2 buffers can be posted per command */
2435 /* Allocate buffer to post */
2436 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2438 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2439 if (!mp1 || !mp1->virt) {
2441 lpfc_sli_release_iocbq(phba, iocb);
2442 pring->missbufcnt = cnt;
2446 INIT_LIST_HEAD(&mp1->list);
2447 /* Allocate buffer to post */
2449 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2451 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2453 if (!mp2 || !mp2->virt) {
2455 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2457 lpfc_sli_release_iocbq(phba, iocb);
2458 pring->missbufcnt = cnt;
2462 INIT_LIST_HEAD(&mp2->list);
2467 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2468 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2469 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2470 icmd->ulpBdeCount = 1;
2473 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2474 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2475 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2477 icmd->ulpBdeCount = 2;
2480 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2483 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2485 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2489 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2493 lpfc_sli_release_iocbq(phba, iocb);
2494 pring->missbufcnt = cnt;
2497 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2499 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2501 pring->missbufcnt = 0;
2506 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2507 * @phba: pointer to lpfc hba data structure.
2509 * This routine posts initial receive IOCB buffers to the ELS ring. The
2510 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2511 * set to 64 IOCBs. SLI3 only.
2514 * 0 - success (currently always success)
2517 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2519 struct lpfc_sli *psli = &phba->sli;
2521 /* Ring 0, ELS / CT buffers */
2522 lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2523 /* Ring 2 - FCP no buffers needed */
2528 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2531 * lpfc_sha_init - Set up initial array of hash table entries
2532 * @HashResultPointer: pointer to an array as hash table.
2534 * This routine sets up the initial values to the array of hash table entries
2538 lpfc_sha_init(uint32_t * HashResultPointer)
2540 HashResultPointer[0] = 0x67452301;
2541 HashResultPointer[1] = 0xEFCDAB89;
2542 HashResultPointer[2] = 0x98BADCFE;
2543 HashResultPointer[3] = 0x10325476;
2544 HashResultPointer[4] = 0xC3D2E1F0;
2548 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2549 * @HashResultPointer: pointer to an initial/result hash table.
2550 * @HashWorkingPointer: pointer to an working hash table.
2552 * This routine iterates an initial hash table pointed by @HashResultPointer
2553 * with the values from the working hash table pointeed by @HashWorkingPointer.
2554 * The results are putting back to the initial hash table, returned through
2555 * the @HashResultPointer as the result hash table.
2558 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2562 uint32_t A, B, C, D, E;
2565 HashWorkingPointer[t] =
2567 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2569 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2570 } while (++t <= 79);
2572 A = HashResultPointer[0];
2573 B = HashResultPointer[1];
2574 C = HashResultPointer[2];
2575 D = HashResultPointer[3];
2576 E = HashResultPointer[4];
2580 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2581 } else if (t < 40) {
2582 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2583 } else if (t < 60) {
2584 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2586 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2588 TEMP += S(5, A) + E + HashWorkingPointer[t];
2594 } while (++t <= 79);
2596 HashResultPointer[0] += A;
2597 HashResultPointer[1] += B;
2598 HashResultPointer[2] += C;
2599 HashResultPointer[3] += D;
2600 HashResultPointer[4] += E;
2605 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2606 * @RandomChallenge: pointer to the entry of host challenge random number array.
2607 * @HashWorking: pointer to the entry of the working hash array.
2609 * This routine calculates the working hash array referred by @HashWorking
2610 * from the challenge random numbers associated with the host, referred by
2611 * @RandomChallenge. The result is put into the entry of the working hash
2612 * array and returned by reference through @HashWorking.
2615 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2617 *HashWorking = (*RandomChallenge ^ *HashWorking);
2621 * lpfc_hba_init - Perform special handling for LC HBA initialization
2622 * @phba: pointer to lpfc hba data structure.
2623 * @hbainit: pointer to an array of unsigned 32-bit integers.
2625 * This routine performs the special handling for LC HBA initialization.
2628 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2631 uint32_t *HashWorking;
2632 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2634 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2638 HashWorking[0] = HashWorking[78] = *pwwnn++;
2639 HashWorking[1] = HashWorking[79] = *pwwnn;
2641 for (t = 0; t < 7; t++)
2642 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2644 lpfc_sha_init(hbainit);
2645 lpfc_sha_iterate(hbainit, HashWorking);
2650 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2651 * @vport: pointer to a virtual N_Port data structure.
2653 * This routine performs the necessary cleanups before deleting the @vport.
2654 * It invokes the discovery state machine to perform necessary state
2655 * transitions and to release the ndlps associated with the @vport. Note,
2656 * the physical port is treated as @vport 0.
2659 lpfc_cleanup(struct lpfc_vport *vport)
2661 struct lpfc_hba *phba = vport->phba;
2662 struct lpfc_nodelist *ndlp, *next_ndlp;
2665 if (phba->link_state > LPFC_LINK_DOWN)
2666 lpfc_port_link_failure(vport);
2668 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2669 if (!NLP_CHK_NODE_ACT(ndlp)) {
2670 ndlp = lpfc_enable_node(vport, ndlp,
2671 NLP_STE_UNUSED_NODE);
2674 spin_lock_irq(&phba->ndlp_lock);
2675 NLP_SET_FREE_REQ(ndlp);
2676 spin_unlock_irq(&phba->ndlp_lock);
2677 /* Trigger the release of the ndlp memory */
2681 spin_lock_irq(&phba->ndlp_lock);
2682 if (NLP_CHK_FREE_REQ(ndlp)) {
2683 /* The ndlp should not be in memory free mode already */
2684 spin_unlock_irq(&phba->ndlp_lock);
2687 /* Indicate request for freeing ndlp memory */
2688 NLP_SET_FREE_REQ(ndlp);
2689 spin_unlock_irq(&phba->ndlp_lock);
2691 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2692 ndlp->nlp_DID == Fabric_DID) {
2693 /* Just free up ndlp with Fabric_DID for vports */
2698 /* take care of nodes in unused state before the state
2699 * machine taking action.
2701 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2706 if (ndlp->nlp_type & NLP_FABRIC)
2707 lpfc_disc_state_machine(vport, ndlp, NULL,
2708 NLP_EVT_DEVICE_RECOVERY);
2710 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) {
2711 /* Remove the NVME transport reference now and
2712 * continue to remove the node.
2717 lpfc_disc_state_machine(vport, ndlp, NULL,
2721 /* At this point, ALL ndlp's should be gone
2722 * because of the previous NLP_EVT_DEVICE_RM.
2723 * Lets wait for this to happen, if needed.
2725 while (!list_empty(&vport->fc_nodes)) {
2727 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2728 "0233 Nodelist not empty\n");
2729 list_for_each_entry_safe(ndlp, next_ndlp,
2730 &vport->fc_nodes, nlp_listp) {
2731 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2733 "0282 did:x%x ndlp:x%p "
2734 "usgmap:x%x refcnt:%d\n",
2735 ndlp->nlp_DID, (void *)ndlp,
2737 kref_read(&ndlp->kref));
2742 /* Wait for any activity on ndlps to settle */
2745 lpfc_cleanup_vports_rrqs(vport, NULL);
2749 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2750 * @vport: pointer to a virtual N_Port data structure.
2752 * This routine stops all the timers associated with a @vport. This function
2753 * is invoked before disabling or deleting a @vport. Note that the physical
2754 * port is treated as @vport 0.
2757 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2759 del_timer_sync(&vport->els_tmofunc);
2760 del_timer_sync(&vport->delayed_disc_tmo);
2761 lpfc_can_disctmo(vport);
2766 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2767 * @phba: pointer to lpfc hba data structure.
2769 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2770 * caller of this routine should already hold the host lock.
2773 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2775 /* Clear pending FCF rediscovery wait flag */
2776 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2778 /* Now, try to stop the timer */
2779 del_timer(&phba->fcf.redisc_wait);
2783 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2784 * @phba: pointer to lpfc hba data structure.
2786 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2787 * checks whether the FCF rediscovery wait timer is pending with the host
2788 * lock held before proceeding with disabling the timer and clearing the
2789 * wait timer pendig flag.
2792 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2794 spin_lock_irq(&phba->hbalock);
2795 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2796 /* FCF rediscovery timer already fired or stopped */
2797 spin_unlock_irq(&phba->hbalock);
2800 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2801 /* Clear failover in progress flags */
2802 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2803 spin_unlock_irq(&phba->hbalock);
2807 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2808 * @phba: pointer to lpfc hba data structure.
2810 * This routine stops all the timers associated with a HBA. This function is
2811 * invoked before either putting a HBA offline or unloading the driver.
2814 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2816 lpfc_stop_vport_timers(phba->pport);
2817 del_timer_sync(&phba->sli.mbox_tmo);
2818 del_timer_sync(&phba->fabric_block_timer);
2819 del_timer_sync(&phba->eratt_poll);
2820 del_timer_sync(&phba->hb_tmofunc);
2821 if (phba->sli_rev == LPFC_SLI_REV4) {
2822 del_timer_sync(&phba->rrq_tmr);
2823 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2825 phba->hb_outstanding = 0;
2827 switch (phba->pci_dev_grp) {
2828 case LPFC_PCI_DEV_LP:
2829 /* Stop any LightPulse device specific driver timers */
2830 del_timer_sync(&phba->fcp_poll_timer);
2832 case LPFC_PCI_DEV_OC:
2833 /* Stop any OneConnect device sepcific driver timers */
2834 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2837 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2838 "0297 Invalid device group (x%x)\n",
2846 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2847 * @phba: pointer to lpfc hba data structure.
2849 * This routine marks a HBA's management interface as blocked. Once the HBA's
2850 * management interface is marked as blocked, all the user space access to
2851 * the HBA, whether they are from sysfs interface or libdfc interface will
2852 * all be blocked. The HBA is set to block the management interface when the
2853 * driver prepares the HBA interface for online or offline.
2856 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2858 unsigned long iflag;
2859 uint8_t actcmd = MBX_HEARTBEAT;
2860 unsigned long timeout;
2862 spin_lock_irqsave(&phba->hbalock, iflag);
2863 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2864 spin_unlock_irqrestore(&phba->hbalock, iflag);
2865 if (mbx_action == LPFC_MBX_NO_WAIT)
2867 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2868 spin_lock_irqsave(&phba->hbalock, iflag);
2869 if (phba->sli.mbox_active) {
2870 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2871 /* Determine how long we might wait for the active mailbox
2872 * command to be gracefully completed by firmware.
2874 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2875 phba->sli.mbox_active) * 1000) + jiffies;
2877 spin_unlock_irqrestore(&phba->hbalock, iflag);
2879 /* Wait for the outstnading mailbox command to complete */
2880 while (phba->sli.mbox_active) {
2881 /* Check active mailbox complete status every 2ms */
2883 if (time_after(jiffies, timeout)) {
2884 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2885 "2813 Mgmt IO is Blocked %x "
2886 "- mbox cmd %x still active\n",
2887 phba->sli.sli_flag, actcmd);
2894 * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2895 * @phba: pointer to lpfc hba data structure.
2897 * Allocate RPIs for all active remote nodes. This is needed whenever
2898 * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2899 * is to fixup the temporary rpi assignments.
2902 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2904 struct lpfc_nodelist *ndlp, *next_ndlp;
2905 struct lpfc_vport **vports;
2907 unsigned long flags;
2909 if (phba->sli_rev != LPFC_SLI_REV4)
2912 vports = lpfc_create_vport_work_array(phba);
2916 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2917 if (vports[i]->load_flag & FC_UNLOADING)
2920 list_for_each_entry_safe(ndlp, next_ndlp,
2921 &vports[i]->fc_nodes,
2923 if (!NLP_CHK_NODE_ACT(ndlp))
2925 rpi = lpfc_sli4_alloc_rpi(phba);
2926 if (rpi == LPFC_RPI_ALLOC_ERROR) {
2927 spin_lock_irqsave(&phba->ndlp_lock, flags);
2928 NLP_CLR_NODE_ACT(ndlp);
2929 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
2932 ndlp->nlp_rpi = rpi;
2933 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
2934 "0009 rpi:%x DID:%x "
2935 "flg:%x map:%x %p\n", ndlp->nlp_rpi,
2936 ndlp->nlp_DID, ndlp->nlp_flag,
2937 ndlp->nlp_usg_map, ndlp);
2940 lpfc_destroy_vport_work_array(phba, vports);
2944 * lpfc_online - Initialize and bring a HBA online
2945 * @phba: pointer to lpfc hba data structure.
2947 * This routine initializes the HBA and brings a HBA online. During this
2948 * process, the management interface is blocked to prevent user space access
2949 * to the HBA interfering with the driver initialization.
2956 lpfc_online(struct lpfc_hba *phba)
2958 struct lpfc_vport *vport;
2959 struct lpfc_vport **vports;
2961 bool vpis_cleared = false;
2965 vport = phba->pport;
2967 if (!(vport->fc_flag & FC_OFFLINE_MODE))
2970 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2971 "0458 Bring Adapter online\n");
2973 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2975 if (phba->sli_rev == LPFC_SLI_REV4) {
2976 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2977 lpfc_unblock_mgmt_io(phba);
2980 spin_lock_irq(&phba->hbalock);
2981 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2982 vpis_cleared = true;
2983 spin_unlock_irq(&phba->hbalock);
2985 lpfc_sli_queue_init(phba);
2986 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2987 lpfc_unblock_mgmt_io(phba);
2992 vports = lpfc_create_vport_work_array(phba);
2993 if (vports != NULL) {
2994 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2995 struct Scsi_Host *shost;
2996 shost = lpfc_shost_from_vport(vports[i]);
2997 spin_lock_irq(shost->host_lock);
2998 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2999 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3000 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3001 if (phba->sli_rev == LPFC_SLI_REV4) {
3002 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3003 if ((vpis_cleared) &&
3004 (vports[i]->port_type !=
3005 LPFC_PHYSICAL_PORT))
3008 spin_unlock_irq(shost->host_lock);
3011 lpfc_destroy_vport_work_array(phba, vports);
3013 lpfc_unblock_mgmt_io(phba);
3018 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3019 * @phba: pointer to lpfc hba data structure.
3021 * This routine marks a HBA's management interface as not blocked. Once the
3022 * HBA's management interface is marked as not blocked, all the user space
3023 * access to the HBA, whether they are from sysfs interface or libdfc
3024 * interface will be allowed. The HBA is set to block the management interface
3025 * when the driver prepares the HBA interface for online or offline and then
3026 * set to unblock the management interface afterwards.
3029 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3031 unsigned long iflag;
3033 spin_lock_irqsave(&phba->hbalock, iflag);
3034 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3035 spin_unlock_irqrestore(&phba->hbalock, iflag);
3039 * lpfc_offline_prep - Prepare a HBA to be brought offline
3040 * @phba: pointer to lpfc hba data structure.
3042 * This routine is invoked to prepare a HBA to be brought offline. It performs
3043 * unregistration login to all the nodes on all vports and flushes the mailbox
3044 * queue to make it ready to be brought offline.
3047 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3049 struct lpfc_vport *vport = phba->pport;
3050 struct lpfc_nodelist *ndlp, *next_ndlp;
3051 struct lpfc_vport **vports;
3052 struct Scsi_Host *shost;
3055 if (vport->fc_flag & FC_OFFLINE_MODE)
3058 lpfc_block_mgmt_io(phba, mbx_action);
3060 lpfc_linkdown(phba);
3062 /* Issue an unreg_login to all nodes on all vports */
3063 vports = lpfc_create_vport_work_array(phba);
3064 if (vports != NULL) {
3065 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3066 if (vports[i]->load_flag & FC_UNLOADING)
3068 shost = lpfc_shost_from_vport(vports[i]);
3069 spin_lock_irq(shost->host_lock);
3070 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3071 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3072 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3073 spin_unlock_irq(shost->host_lock);
3075 shost = lpfc_shost_from_vport(vports[i]);
3076 list_for_each_entry_safe(ndlp, next_ndlp,
3077 &vports[i]->fc_nodes,
3079 if (!NLP_CHK_NODE_ACT(ndlp))
3081 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3083 if (ndlp->nlp_type & NLP_FABRIC) {
3084 lpfc_disc_state_machine(vports[i], ndlp,
3085 NULL, NLP_EVT_DEVICE_RECOVERY);
3086 lpfc_disc_state_machine(vports[i], ndlp,
3087 NULL, NLP_EVT_DEVICE_RM);
3089 spin_lock_irq(shost->host_lock);
3090 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3091 spin_unlock_irq(shost->host_lock);
3093 * Whenever an SLI4 port goes offline, free the
3094 * RPI. Get a new RPI when the adapter port
3095 * comes back online.
3097 if (phba->sli_rev == LPFC_SLI_REV4) {
3098 lpfc_printf_vlog(ndlp->vport,
3099 KERN_INFO, LOG_NODE,
3100 "0011 lpfc_offline: "
3102 "usgmap:x%x rpi:%x\n",
3103 ndlp, ndlp->nlp_DID,
3107 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3109 lpfc_unreg_rpi(vports[i], ndlp);
3113 lpfc_destroy_vport_work_array(phba, vports);
3115 lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3119 * lpfc_offline - Bring a HBA offline
3120 * @phba: pointer to lpfc hba data structure.
3122 * This routine actually brings a HBA offline. It stops all the timers
3123 * associated with the HBA, brings down the SLI layer, and eventually
3124 * marks the HBA as in offline state for the upper layer protocol.
3127 lpfc_offline(struct lpfc_hba *phba)
3129 struct Scsi_Host *shost;
3130 struct lpfc_vport **vports;
3133 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3136 /* stop port and all timers associated with this hba */
3137 lpfc_stop_port(phba);
3138 vports = lpfc_create_vport_work_array(phba);
3140 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3141 lpfc_stop_vport_timers(vports[i]);
3142 lpfc_destroy_vport_work_array(phba, vports);
3143 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3144 "0460 Bring Adapter offline\n");
3145 /* Bring down the SLI Layer and cleanup. The HBA is offline
3147 lpfc_sli_hba_down(phba);
3148 spin_lock_irq(&phba->hbalock);
3150 spin_unlock_irq(&phba->hbalock);
3151 vports = lpfc_create_vport_work_array(phba);
3153 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3154 shost = lpfc_shost_from_vport(vports[i]);
3155 spin_lock_irq(shost->host_lock);
3156 vports[i]->work_port_events = 0;
3157 vports[i]->fc_flag |= FC_OFFLINE_MODE;
3158 spin_unlock_irq(shost->host_lock);
3160 lpfc_destroy_vport_work_array(phba, vports);
3164 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3165 * @phba: pointer to lpfc hba data structure.
3167 * This routine is to free all the SCSI buffers and IOCBs from the driver
3168 * list back to kernel. It is called from lpfc_pci_remove_one to free
3169 * the internal resources before the device is removed from the system.
3172 lpfc_scsi_free(struct lpfc_hba *phba)
3174 struct lpfc_scsi_buf *sb, *sb_next;
3176 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3179 spin_lock_irq(&phba->hbalock);
3181 /* Release all the lpfc_scsi_bufs maintained by this host. */
3183 spin_lock(&phba->scsi_buf_list_put_lock);
3184 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3186 list_del(&sb->list);
3187 pci_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3190 phba->total_scsi_bufs--;
3192 spin_unlock(&phba->scsi_buf_list_put_lock);
3194 spin_lock(&phba->scsi_buf_list_get_lock);
3195 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3197 list_del(&sb->list);
3198 pci_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3201 phba->total_scsi_bufs--;
3203 spin_unlock(&phba->scsi_buf_list_get_lock);
3204 spin_unlock_irq(&phba->hbalock);
3207 * lpfc_nvme_free - Free all the NVME buffers and IOCBs from driver lists
3208 * @phba: pointer to lpfc hba data structure.
3210 * This routine is to free all the NVME buffers and IOCBs from the driver
3211 * list back to kernel. It is called from lpfc_pci_remove_one to free
3212 * the internal resources before the device is removed from the system.
3215 lpfc_nvme_free(struct lpfc_hba *phba)
3217 struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next;
3219 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
3222 spin_lock_irq(&phba->hbalock);
3224 /* Release all the lpfc_nvme_bufs maintained by this host. */
3225 spin_lock(&phba->nvme_buf_list_put_lock);
3226 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3227 &phba->lpfc_nvme_buf_list_put, list) {
3228 list_del(&lpfc_ncmd->list);
3229 pci_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
3230 lpfc_ncmd->dma_handle);
3232 phba->total_nvme_bufs--;
3234 spin_unlock(&phba->nvme_buf_list_put_lock);
3236 spin_lock(&phba->nvme_buf_list_get_lock);
3237 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3238 &phba->lpfc_nvme_buf_list_get, list) {
3239 list_del(&lpfc_ncmd->list);
3240 pci_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
3241 lpfc_ncmd->dma_handle);
3243 phba->total_nvme_bufs--;
3245 spin_unlock(&phba->nvme_buf_list_get_lock);
3246 spin_unlock_irq(&phba->hbalock);
3249 * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3250 * @phba: pointer to lpfc hba data structure.
3252 * This routine first calculates the sizes of the current els and allocated
3253 * scsi sgl lists, and then goes through all sgls to updates the physical
3254 * XRIs assigned due to port function reset. During port initialization, the
3255 * current els and allocated scsi sgl lists are 0s.
3258 * 0 - successful (for now, it always returns 0)
3261 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3263 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3264 uint16_t i, lxri, xri_cnt, els_xri_cnt;
3265 LIST_HEAD(els_sgl_list);
3269 * update on pci function's els xri-sgl list
3271 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3273 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3274 /* els xri-sgl expanded */
3275 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3276 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3277 "3157 ELS xri-sgl count increased from "
3278 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3280 /* allocate the additional els sgls */
3281 for (i = 0; i < xri_cnt; i++) {
3282 sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3284 if (sglq_entry == NULL) {
3285 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3286 "2562 Failure to allocate an "
3287 "ELS sgl entry:%d\n", i);
3291 sglq_entry->buff_type = GEN_BUFF_TYPE;
3292 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3294 if (sglq_entry->virt == NULL) {
3296 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3297 "2563 Failure to allocate an "
3298 "ELS mbuf:%d\n", i);
3302 sglq_entry->sgl = sglq_entry->virt;
3303 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3304 sglq_entry->state = SGL_FREED;
3305 list_add_tail(&sglq_entry->list, &els_sgl_list);
3307 spin_lock_irq(&phba->hbalock);
3308 spin_lock(&phba->sli4_hba.sgl_list_lock);
3309 list_splice_init(&els_sgl_list,
3310 &phba->sli4_hba.lpfc_els_sgl_list);
3311 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3312 spin_unlock_irq(&phba->hbalock);
3313 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3314 /* els xri-sgl shrinked */
3315 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3316 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3317 "3158 ELS xri-sgl count decreased from "
3318 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3320 spin_lock_irq(&phba->hbalock);
3321 spin_lock(&phba->sli4_hba.sgl_list_lock);
3322 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3324 /* release extra els sgls from list */
3325 for (i = 0; i < xri_cnt; i++) {
3326 list_remove_head(&els_sgl_list,
3327 sglq_entry, struct lpfc_sglq, list);
3329 __lpfc_mbuf_free(phba, sglq_entry->virt,
3334 list_splice_init(&els_sgl_list,
3335 &phba->sli4_hba.lpfc_els_sgl_list);
3336 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3337 spin_unlock_irq(&phba->hbalock);
3339 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3340 "3163 ELS xri-sgl count unchanged: %d\n",
3342 phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3344 /* update xris to els sgls on the list */
3346 sglq_entry_next = NULL;
3347 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3348 &phba->sli4_hba.lpfc_els_sgl_list, list) {
3349 lxri = lpfc_sli4_next_xritag(phba);
3350 if (lxri == NO_XRI) {
3351 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3352 "2400 Failed to allocate xri for "
3357 sglq_entry->sli4_lxritag = lxri;
3358 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3363 lpfc_free_els_sgl_list(phba);
3368 * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3369 * @phba: pointer to lpfc hba data structure.
3371 * This routine first calculates the sizes of the current els and allocated
3372 * scsi sgl lists, and then goes through all sgls to updates the physical
3373 * XRIs assigned due to port function reset. During port initialization, the
3374 * current els and allocated scsi sgl lists are 0s.
3377 * 0 - successful (for now, it always returns 0)
3380 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
3382 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3383 uint16_t i, lxri, xri_cnt, els_xri_cnt;
3384 uint16_t nvmet_xri_cnt, tot_cnt;
3385 LIST_HEAD(nvmet_sgl_list);
3389 * update on pci function's nvmet xri-sgl list
3391 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3392 nvmet_xri_cnt = phba->cfg_nvmet_mrq * phba->cfg_nvmet_mrq_post;
3393 tot_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3394 if (nvmet_xri_cnt > tot_cnt) {
3395 phba->cfg_nvmet_mrq_post = tot_cnt / phba->cfg_nvmet_mrq;
3396 nvmet_xri_cnt = phba->cfg_nvmet_mrq * phba->cfg_nvmet_mrq_post;
3397 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3398 "6301 NVMET post-sgl count changed to %d\n",
3399 phba->cfg_nvmet_mrq_post);
3402 if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
3403 /* els xri-sgl expanded */
3404 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
3405 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3406 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
3407 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
3408 /* allocate the additional nvmet sgls */
3409 for (i = 0; i < xri_cnt; i++) {
3410 sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3412 if (sglq_entry == NULL) {
3413 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3414 "6303 Failure to allocate an "
3415 "NVMET sgl entry:%d\n", i);
3419 sglq_entry->buff_type = NVMET_BUFF_TYPE;
3420 sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
3422 if (sglq_entry->virt == NULL) {
3424 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3425 "6304 Failure to allocate an "
3426 "NVMET buf:%d\n", i);
3430 sglq_entry->sgl = sglq_entry->virt;
3431 memset(sglq_entry->sgl, 0,
3432 phba->cfg_sg_dma_buf_size);
3433 sglq_entry->state = SGL_FREED;
3434 list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
3436 spin_lock_irq(&phba->hbalock);
3437 spin_lock(&phba->sli4_hba.sgl_list_lock);
3438 list_splice_init(&nvmet_sgl_list,
3439 &phba->sli4_hba.lpfc_nvmet_sgl_list);
3440 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3441 spin_unlock_irq(&phba->hbalock);
3442 } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
3443 /* nvmet xri-sgl shrunk */
3444 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
3445 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3446 "6305 NVMET xri-sgl count decreased from "
3447 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
3449 spin_lock_irq(&phba->hbalock);
3450 spin_lock(&phba->sli4_hba.sgl_list_lock);
3451 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
3453 /* release extra nvmet sgls from list */
3454 for (i = 0; i < xri_cnt; i++) {
3455 list_remove_head(&nvmet_sgl_list,
3456 sglq_entry, struct lpfc_sglq, list);
3458 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
3463 list_splice_init(&nvmet_sgl_list,
3464 &phba->sli4_hba.lpfc_nvmet_sgl_list);
3465 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3466 spin_unlock_irq(&phba->hbalock);
3468 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3469 "6306 NVMET xri-sgl count unchanged: %d\n",
3471 phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
3473 /* update xris to nvmet sgls on the list */
3475 sglq_entry_next = NULL;
3476 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3477 &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
3478 lxri = lpfc_sli4_next_xritag(phba);
3479 if (lxri == NO_XRI) {
3480 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3481 "6307 Failed to allocate xri for "
3486 sglq_entry->sli4_lxritag = lxri;
3487 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3492 lpfc_free_nvmet_sgl_list(phba);
3497 * lpfc_sli4_scsi_sgl_update - update xri-sgl sizing and mapping
3498 * @phba: pointer to lpfc hba data structure.
3500 * This routine first calculates the sizes of the current els and allocated
3501 * scsi sgl lists, and then goes through all sgls to updates the physical
3502 * XRIs assigned due to port function reset. During port initialization, the
3503 * current els and allocated scsi sgl lists are 0s.
3506 * 0 - successful (for now, it always returns 0)
3509 lpfc_sli4_scsi_sgl_update(struct lpfc_hba *phba)
3511 struct lpfc_scsi_buf *psb, *psb_next;
3512 uint16_t i, lxri, els_xri_cnt, scsi_xri_cnt;
3513 LIST_HEAD(scsi_sgl_list);
3517 * update on pci function's els xri-sgl list
3519 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3520 phba->total_scsi_bufs = 0;
3523 * update on pci function's allocated scsi xri-sgl list
3525 /* maximum number of xris available for scsi buffers */
3526 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3529 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3532 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3533 phba->sli4_hba.scsi_xri_max = /* Split them up */
3534 (phba->sli4_hba.scsi_xri_max *
3535 phba->cfg_xri_split) / 100;
3537 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3538 spin_lock(&phba->scsi_buf_list_put_lock);
3539 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3540 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3541 spin_unlock(&phba->scsi_buf_list_put_lock);
3542 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3544 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3545 "6060 Current allocated SCSI xri-sgl count:%d, "
3546 "maximum SCSI xri count:%d (split:%d)\n",
3547 phba->sli4_hba.scsi_xri_cnt,
3548 phba->sli4_hba.scsi_xri_max, phba->cfg_xri_split);
3550 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3551 /* max scsi xri shrinked below the allocated scsi buffers */
3552 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3553 phba->sli4_hba.scsi_xri_max;
3554 /* release the extra allocated scsi buffers */
3555 for (i = 0; i < scsi_xri_cnt; i++) {
3556 list_remove_head(&scsi_sgl_list, psb,
3557 struct lpfc_scsi_buf, list);
3559 pci_pool_free(phba->lpfc_sg_dma_buf_pool,
3560 psb->data, psb->dma_handle);
3564 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3565 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3566 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3569 /* update xris associated to remaining allocated scsi buffers */
3572 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3573 lxri = lpfc_sli4_next_xritag(phba);
3574 if (lxri == NO_XRI) {
3575 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3576 "2560 Failed to allocate xri for "
3581 psb->cur_iocbq.sli4_lxritag = lxri;
3582 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3584 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3585 spin_lock(&phba->scsi_buf_list_put_lock);
3586 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3587 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3588 spin_unlock(&phba->scsi_buf_list_put_lock);
3589 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3593 lpfc_scsi_free(phba);
3598 lpfc_get_wwpn(struct lpfc_hba *phba)
3602 LPFC_MBOXQ_t *mboxq;
3605 if (phba->sli_rev < LPFC_SLI_REV4) {
3606 /* Reset the port first */
3607 lpfc_sli_brdrestart(phba);
3608 rc = lpfc_sli_chipset_init(phba);
3610 return (uint64_t)-1;
3613 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
3616 return (uint64_t)-1;
3618 /* First get WWN of HBA instance */
3619 lpfc_read_nv(phba, mboxq);
3620 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
3621 if (rc != MBX_SUCCESS) {
3622 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3623 "6019 Mailbox failed , mbxCmd x%x "
3624 "READ_NV, mbxStatus x%x\n",
3625 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
3626 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
3627 mempool_free(mboxq, phba->mbox_mem_pool);
3628 return (uint64_t) -1;
3631 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
3632 /* wwn is WWPN of HBA instance */
3633 mempool_free(mboxq, phba->mbox_mem_pool);
3634 if (phba->sli_rev == LPFC_SLI_REV4)
3635 return be64_to_cpu(wwn);
3637 return (((wwn & 0xffffffff00000000) >> 32) |
3638 ((wwn & 0x00000000ffffffff) << 32));
3643 * lpfc_sli4_nvme_sgl_update - update xri-sgl sizing and mapping
3644 * @phba: pointer to lpfc hba data structure.
3646 * This routine first calculates the sizes of the current els and allocated
3647 * scsi sgl lists, and then goes through all sgls to updates the physical
3648 * XRIs assigned due to port function reset. During port initialization, the
3649 * current els and allocated scsi sgl lists are 0s.
3652 * 0 - successful (for now, it always returns 0)
3655 lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba)
3657 struct lpfc_nvme_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
3658 uint16_t i, lxri, els_xri_cnt;
3659 uint16_t nvme_xri_cnt, nvme_xri_max;
3660 LIST_HEAD(nvme_sgl_list);
3663 phba->total_nvme_bufs = 0;
3665 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
3668 * update on pci function's allocated nvme xri-sgl list
3671 /* maximum number of xris available for nvme buffers */
3672 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3673 nvme_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3674 phba->sli4_hba.nvme_xri_max = nvme_xri_max;
3675 phba->sli4_hba.nvme_xri_max -= phba->sli4_hba.scsi_xri_max;
3677 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3678 "6074 Current allocated NVME xri-sgl count:%d, "
3679 "maximum NVME xri count:%d\n",
3680 phba->sli4_hba.nvme_xri_cnt,
3681 phba->sli4_hba.nvme_xri_max);
3683 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3684 spin_lock(&phba->nvme_buf_list_put_lock);
3685 list_splice_init(&phba->lpfc_nvme_buf_list_get, &nvme_sgl_list);
3686 list_splice(&phba->lpfc_nvme_buf_list_put, &nvme_sgl_list);
3687 spin_unlock(&phba->nvme_buf_list_put_lock);
3688 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3690 if (phba->sli4_hba.nvme_xri_cnt > phba->sli4_hba.nvme_xri_max) {
3691 /* max nvme xri shrunk below the allocated nvme buffers */
3692 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3693 nvme_xri_cnt = phba->sli4_hba.nvme_xri_cnt -
3694 phba->sli4_hba.nvme_xri_max;
3695 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3696 /* release the extra allocated nvme buffers */
3697 for (i = 0; i < nvme_xri_cnt; i++) {
3698 list_remove_head(&nvme_sgl_list, lpfc_ncmd,
3699 struct lpfc_nvme_buf, list);
3701 pci_pool_free(phba->lpfc_sg_dma_buf_pool,
3703 lpfc_ncmd->dma_handle);
3707 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3708 phba->sli4_hba.nvme_xri_cnt -= nvme_xri_cnt;
3709 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3712 /* update xris associated to remaining allocated nvme buffers */
3714 lpfc_ncmd_next = NULL;
3715 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3716 &nvme_sgl_list, list) {
3717 lxri = lpfc_sli4_next_xritag(phba);
3718 if (lxri == NO_XRI) {
3719 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3720 "6075 Failed to allocate xri for "
3725 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
3726 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3728 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3729 spin_lock(&phba->nvme_buf_list_put_lock);
3730 list_splice_init(&nvme_sgl_list, &phba->lpfc_nvme_buf_list_get);
3731 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
3732 spin_unlock(&phba->nvme_buf_list_put_lock);
3733 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3737 lpfc_nvme_free(phba);
3742 * lpfc_create_port - Create an FC port
3743 * @phba: pointer to lpfc hba data structure.
3744 * @instance: a unique integer ID to this FC port.
3745 * @dev: pointer to the device data structure.
3747 * This routine creates a FC port for the upper layer protocol. The FC port
3748 * can be created on top of either a physical port or a virtual port provided
3749 * by the HBA. This routine also allocates a SCSI host data structure (shost)
3750 * and associates the FC port created before adding the shost into the SCSI
3754 * @vport - pointer to the virtual N_Port data structure.
3755 * NULL - port create failed.
3758 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3760 struct lpfc_vport *vport;
3761 struct Scsi_Host *shost = NULL;
3765 bool use_no_reset_hba = false;
3767 wwn = lpfc_get_wwpn(phba);
3769 for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
3770 if (wwn == lpfc_no_hba_reset[i]) {
3771 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3772 "6020 Setting use_no_reset port=%llx\n",
3774 use_no_reset_hba = true;
3779 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
3780 if (dev != &phba->pcidev->dev) {
3781 shost = scsi_host_alloc(&lpfc_vport_template,
3782 sizeof(struct lpfc_vport));
3784 if (!use_no_reset_hba)
3785 shost = scsi_host_alloc(&lpfc_template,
3786 sizeof(struct lpfc_vport));
3788 shost = scsi_host_alloc(&lpfc_template_no_hr,
3789 sizeof(struct lpfc_vport));
3791 } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
3792 shost = scsi_host_alloc(&lpfc_template_nvme,
3793 sizeof(struct lpfc_vport));
3798 vport = (struct lpfc_vport *) shost->hostdata;
3800 vport->load_flag |= FC_LOADING;
3801 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3802 vport->fc_rscn_flush = 0;
3803 lpfc_get_vport_cfgparam(vport);
3805 shost->unique_id = instance;
3806 shost->max_id = LPFC_MAX_TARGET;
3807 shost->max_lun = vport->cfg_max_luns;
3808 shost->this_id = -1;
3809 shost->max_cmd_len = 16;
3810 shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3811 if (phba->sli_rev == LPFC_SLI_REV4) {
3812 shost->dma_boundary =
3813 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3814 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3818 * Set initial can_queue value since 0 is no longer supported and
3819 * scsi_add_host will fail. This will be adjusted later based on the
3820 * max xri value determined in hba setup.
3822 shost->can_queue = phba->cfg_hba_queue_depth - 10;
3823 if (dev != &phba->pcidev->dev) {
3824 shost->transportt = lpfc_vport_transport_template;
3825 vport->port_type = LPFC_NPIV_PORT;
3827 shost->transportt = lpfc_transport_template;
3828 vport->port_type = LPFC_PHYSICAL_PORT;
3831 /* Initialize all internally managed lists. */
3832 INIT_LIST_HEAD(&vport->fc_nodes);
3833 INIT_LIST_HEAD(&vport->rcv_buffer_list);
3834 spin_lock_init(&vport->work_port_lock);
3836 setup_timer(&vport->fc_disctmo, lpfc_disc_timeout,
3837 (unsigned long)vport);
3839 setup_timer(&vport->els_tmofunc, lpfc_els_timeout,
3840 (unsigned long)vport);
3842 setup_timer(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo,
3843 (unsigned long)vport);
3845 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3849 spin_lock_irq(&phba->hbalock);
3850 list_add_tail(&vport->listentry, &phba->port_list);
3851 spin_unlock_irq(&phba->hbalock);
3855 scsi_host_put(shost);
3861 * destroy_port - destroy an FC port
3862 * @vport: pointer to an lpfc virtual N_Port data structure.
3864 * This routine destroys a FC port from the upper layer protocol. All the
3865 * resources associated with the port are released.
3868 destroy_port(struct lpfc_vport *vport)
3870 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3871 struct lpfc_hba *phba = vport->phba;
3873 lpfc_debugfs_terminate(vport);
3874 fc_remove_host(shost);
3875 scsi_remove_host(shost);
3877 spin_lock_irq(&phba->hbalock);
3878 list_del_init(&vport->listentry);
3879 spin_unlock_irq(&phba->hbalock);
3881 lpfc_cleanup(vport);
3886 * lpfc_get_instance - Get a unique integer ID
3888 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3889 * uses the kernel idr facility to perform the task.
3892 * instance - a unique integer ID allocated as the new instance.
3893 * -1 - lpfc get instance failed.
3896 lpfc_get_instance(void)
3900 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3901 return ret < 0 ? -1 : ret;
3905 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3906 * @shost: pointer to SCSI host data structure.
3907 * @time: elapsed time of the scan in jiffies.
3909 * This routine is called by the SCSI layer with a SCSI host to determine
3910 * whether the scan host is finished.
3912 * Note: there is no scan_start function as adapter initialization will have
3913 * asynchronously kicked off the link initialization.
3916 * 0 - SCSI host scan is not over yet.
3917 * 1 - SCSI host scan is over.
3919 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3921 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3922 struct lpfc_hba *phba = vport->phba;
3925 spin_lock_irq(shost->host_lock);
3927 if (vport->load_flag & FC_UNLOADING) {
3931 if (time >= msecs_to_jiffies(30 * 1000)) {
3932 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3933 "0461 Scanning longer than 30 "
3934 "seconds. Continuing initialization\n");
3938 if (time >= msecs_to_jiffies(15 * 1000) &&
3939 phba->link_state <= LPFC_LINK_DOWN) {
3940 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3941 "0465 Link down longer than 15 "
3942 "seconds. Continuing initialization\n");
3947 if (vport->port_state != LPFC_VPORT_READY)
3949 if (vport->num_disc_nodes || vport->fc_prli_sent)
3951 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3953 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3959 spin_unlock_irq(shost->host_lock);
3964 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3965 * @shost: pointer to SCSI host data structure.
3967 * This routine initializes a given SCSI host attributes on a FC port. The
3968 * SCSI host can be either on top of a physical port or a virtual port.
3970 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3972 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3973 struct lpfc_hba *phba = vport->phba;
3975 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
3978 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3979 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3980 fc_host_supported_classes(shost) = FC_COS_CLASS3;
3982 memset(fc_host_supported_fc4s(shost), 0,
3983 sizeof(fc_host_supported_fc4s(shost)));
3984 fc_host_supported_fc4s(shost)[2] = 1;
3985 fc_host_supported_fc4s(shost)[7] = 1;
3987 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3988 sizeof fc_host_symbolic_name(shost));
3990 fc_host_supported_speeds(shost) = 0;
3991 if (phba->lmt & LMT_32Gb)
3992 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
3993 if (phba->lmt & LMT_16Gb)
3994 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3995 if (phba->lmt & LMT_10Gb)
3996 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3997 if (phba->lmt & LMT_8Gb)
3998 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3999 if (phba->lmt & LMT_4Gb)
4000 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4001 if (phba->lmt & LMT_2Gb)
4002 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4003 if (phba->lmt & LMT_1Gb)
4004 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4006 fc_host_maxframe_size(shost) =
4007 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4008 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4010 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4012 /* This value is also unchanging */
4013 memset(fc_host_active_fc4s(shost), 0,
4014 sizeof(fc_host_active_fc4s(shost)));
4015 fc_host_active_fc4s(shost)[2] = 1;
4016 fc_host_active_fc4s(shost)[7] = 1;
4018 fc_host_max_npiv_vports(shost) = phba->max_vpi;
4019 spin_lock_irq(shost->host_lock);
4020 vport->load_flag &= ~FC_LOADING;
4021 spin_unlock_irq(shost->host_lock);
4025 * lpfc_stop_port_s3 - Stop SLI3 device port
4026 * @phba: pointer to lpfc hba data structure.
4028 * This routine is invoked to stop an SLI3 device port, it stops the device
4029 * from generating interrupts and stops the device driver's timers for the
4033 lpfc_stop_port_s3(struct lpfc_hba *phba)
4035 /* Clear all interrupt enable conditions */
4036 writel(0, phba->HCregaddr);
4037 readl(phba->HCregaddr); /* flush */
4038 /* Clear all pending interrupts */
4039 writel(0xffffffff, phba->HAregaddr);
4040 readl(phba->HAregaddr); /* flush */
4042 /* Reset some HBA SLI setup states */
4043 lpfc_stop_hba_timers(phba);
4044 phba->pport->work_port_events = 0;
4048 * lpfc_stop_port_s4 - Stop SLI4 device port
4049 * @phba: pointer to lpfc hba data structure.
4051 * This routine is invoked to stop an SLI4 device port, it stops the device
4052 * from generating interrupts and stops the device driver's timers for the
4056 lpfc_stop_port_s4(struct lpfc_hba *phba)
4058 /* Reset some HBA SLI4 setup states */
4059 lpfc_stop_hba_timers(phba);
4060 phba->pport->work_port_events = 0;
4061 phba->sli4_hba.intr_enable = 0;
4065 * lpfc_stop_port - Wrapper function for stopping hba port
4066 * @phba: Pointer to HBA context object.
4068 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4069 * the API jump table function pointer from the lpfc_hba struct.
4072 lpfc_stop_port(struct lpfc_hba *phba)
4074 phba->lpfc_stop_port(phba);
4078 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4079 * @phba: Pointer to hba for which this call is being executed.
4081 * This routine starts the timer waiting for the FCF rediscovery to complete.
4084 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4086 unsigned long fcf_redisc_wait_tmo =
4087 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4088 /* Start fcf rediscovery wait period timer */
4089 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4090 spin_lock_irq(&phba->hbalock);
4091 /* Allow action to new fcf asynchronous event */
4092 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4093 /* Mark the FCF rediscovery pending state */
4094 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4095 spin_unlock_irq(&phba->hbalock);
4099 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4100 * @ptr: Map to lpfc_hba data structure pointer.
4102 * This routine is invoked when waiting for FCF table rediscover has been
4103 * timed out. If new FCF record(s) has (have) been discovered during the
4104 * wait period, a new FCF event shall be added to the FCOE async event
4105 * list, and then worker thread shall be waked up for processing from the
4106 * worker thread context.
4109 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
4111 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
4113 /* Don't send FCF rediscovery event if timer cancelled */
4114 spin_lock_irq(&phba->hbalock);
4115 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4116 spin_unlock_irq(&phba->hbalock);
4119 /* Clear FCF rediscovery timer pending flag */
4120 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4121 /* FCF rediscovery event to worker thread */
4122 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4123 spin_unlock_irq(&phba->hbalock);
4124 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4125 "2776 FCF rediscover quiescent timer expired\n");
4126 /* wake up worker thread */
4127 lpfc_worker_wake_up(phba);
4131 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4132 * @phba: pointer to lpfc hba data structure.
4133 * @acqe_link: pointer to the async link completion queue entry.
4135 * This routine is to parse the SLI4 link-attention link fault code and
4136 * translate it into the base driver's read link attention mailbox command
4139 * Return: Link-attention status in terms of base driver's coding.
4142 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4143 struct lpfc_acqe_link *acqe_link)
4145 uint16_t latt_fault;
4147 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4148 case LPFC_ASYNC_LINK_FAULT_NONE:
4149 case LPFC_ASYNC_LINK_FAULT_LOCAL:
4150 case LPFC_ASYNC_LINK_FAULT_REMOTE:
4154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4155 "0398 Invalid link fault code: x%x\n",
4156 bf_get(lpfc_acqe_link_fault, acqe_link));
4157 latt_fault = MBXERR_ERROR;
4164 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4165 * @phba: pointer to lpfc hba data structure.
4166 * @acqe_link: pointer to the async link completion queue entry.
4168 * This routine is to parse the SLI4 link attention type and translate it
4169 * into the base driver's link attention type coding.
4171 * Return: Link attention type in terms of base driver's coding.
4174 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4175 struct lpfc_acqe_link *acqe_link)
4179 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4180 case LPFC_ASYNC_LINK_STATUS_DOWN:
4181 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4182 att_type = LPFC_ATT_LINK_DOWN;
4184 case LPFC_ASYNC_LINK_STATUS_UP:
4185 /* Ignore physical link up events - wait for logical link up */
4186 att_type = LPFC_ATT_RESERVED;
4188 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4189 att_type = LPFC_ATT_LINK_UP;
4192 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4193 "0399 Invalid link attention type: x%x\n",
4194 bf_get(lpfc_acqe_link_status, acqe_link));
4195 att_type = LPFC_ATT_RESERVED;
4202 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4203 * @phba: pointer to lpfc hba data structure.
4205 * This routine is to get an SLI3 FC port's link speed in Mbps.
4207 * Return: link speed in terms of Mbps.
4210 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4212 uint32_t link_speed;
4214 if (!lpfc_is_link_up(phba))
4217 if (phba->sli_rev <= LPFC_SLI_REV3) {
4218 switch (phba->fc_linkspeed) {
4219 case LPFC_LINK_SPEED_1GHZ:
4222 case LPFC_LINK_SPEED_2GHZ:
4225 case LPFC_LINK_SPEED_4GHZ:
4228 case LPFC_LINK_SPEED_8GHZ:
4231 case LPFC_LINK_SPEED_10GHZ:
4234 case LPFC_LINK_SPEED_16GHZ:
4241 if (phba->sli4_hba.link_state.logical_speed)
4243 phba->sli4_hba.link_state.logical_speed;
4245 link_speed = phba->sli4_hba.link_state.speed;
4251 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4252 * @phba: pointer to lpfc hba data structure.
4253 * @evt_code: asynchronous event code.
4254 * @speed_code: asynchronous event link speed code.
4256 * This routine is to parse the giving SLI4 async event link speed code into
4257 * value of Mbps for the link speed.
4259 * Return: link speed in terms of Mbps.
4262 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4265 uint32_t port_speed;
4268 case LPFC_TRAILER_CODE_LINK:
4269 switch (speed_code) {
4270 case LPFC_ASYNC_LINK_SPEED_ZERO:
4273 case LPFC_ASYNC_LINK_SPEED_10MBPS:
4276 case LPFC_ASYNC_LINK_SPEED_100MBPS:
4279 case LPFC_ASYNC_LINK_SPEED_1GBPS:
4282 case LPFC_ASYNC_LINK_SPEED_10GBPS:
4285 case LPFC_ASYNC_LINK_SPEED_20GBPS:
4288 case LPFC_ASYNC_LINK_SPEED_25GBPS:
4291 case LPFC_ASYNC_LINK_SPEED_40GBPS:
4298 case LPFC_TRAILER_CODE_FC:
4299 switch (speed_code) {
4300 case LPFC_FC_LA_SPEED_UNKNOWN:
4303 case LPFC_FC_LA_SPEED_1G:
4306 case LPFC_FC_LA_SPEED_2G:
4309 case LPFC_FC_LA_SPEED_4G:
4312 case LPFC_FC_LA_SPEED_8G:
4315 case LPFC_FC_LA_SPEED_10G:
4318 case LPFC_FC_LA_SPEED_16G:
4321 case LPFC_FC_LA_SPEED_32G:
4335 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4336 * @phba: pointer to lpfc hba data structure.
4337 * @acqe_link: pointer to the async link completion queue entry.
4339 * This routine is to handle the SLI4 asynchronous FCoE link event.
4342 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4343 struct lpfc_acqe_link *acqe_link)
4345 struct lpfc_dmabuf *mp;
4348 struct lpfc_mbx_read_top *la;
4352 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4353 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4355 phba->fcoe_eventtag = acqe_link->event_tag;
4356 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4358 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4359 "0395 The mboxq allocation failed\n");
4362 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4364 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4365 "0396 The lpfc_dmabuf allocation failed\n");
4368 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4370 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4371 "0397 The mbuf allocation failed\n");
4372 goto out_free_dmabuf;
4375 /* Cleanup any outstanding ELS commands */
4376 lpfc_els_flush_all_cmd(phba);
4378 /* Block ELS IOCBs until we have done process link event */
4379 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4381 /* Update link event statistics */
4382 phba->sli.slistat.link_event++;
4384 /* Create lpfc_handle_latt mailbox command from link ACQE */
4385 lpfc_read_topology(phba, pmb, mp);
4386 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4387 pmb->vport = phba->pport;
4389 /* Keep the link status for extra SLI4 state machine reference */
4390 phba->sli4_hba.link_state.speed =
4391 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
4392 bf_get(lpfc_acqe_link_speed, acqe_link));
4393 phba->sli4_hba.link_state.duplex =
4394 bf_get(lpfc_acqe_link_duplex, acqe_link);
4395 phba->sli4_hba.link_state.status =
4396 bf_get(lpfc_acqe_link_status, acqe_link);
4397 phba->sli4_hba.link_state.type =
4398 bf_get(lpfc_acqe_link_type, acqe_link);
4399 phba->sli4_hba.link_state.number =
4400 bf_get(lpfc_acqe_link_number, acqe_link);
4401 phba->sli4_hba.link_state.fault =
4402 bf_get(lpfc_acqe_link_fault, acqe_link);
4403 phba->sli4_hba.link_state.logical_speed =
4404 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
4406 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4407 "2900 Async FC/FCoE Link event - Speed:%dGBit "
4408 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
4409 "Logical speed:%dMbps Fault:%d\n",
4410 phba->sli4_hba.link_state.speed,
4411 phba->sli4_hba.link_state.topology,
4412 phba->sli4_hba.link_state.status,
4413 phba->sli4_hba.link_state.type,
4414 phba->sli4_hba.link_state.number,
4415 phba->sli4_hba.link_state.logical_speed,
4416 phba->sli4_hba.link_state.fault);
4418 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
4419 * topology info. Note: Optional for non FC-AL ports.
4421 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
4422 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4423 if (rc == MBX_NOT_FINISHED)
4424 goto out_free_dmabuf;
4428 * For FCoE Mode: fill in all the topology information we need and call
4429 * the READ_TOPOLOGY completion routine to continue without actually
4430 * sending the READ_TOPOLOGY mailbox command to the port.
4432 /* Parse and translate status field */
4434 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
4436 /* Parse and translate link attention fields */
4437 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4438 la->eventTag = acqe_link->event_tag;
4439 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4440 bf_set(lpfc_mbx_read_top_link_spd, la,
4441 (bf_get(lpfc_acqe_link_speed, acqe_link)));
4443 /* Fake the the following irrelvant fields */
4444 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4445 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4446 bf_set(lpfc_mbx_read_top_il, la, 0);
4447 bf_set(lpfc_mbx_read_top_pb, la, 0);
4448 bf_set(lpfc_mbx_read_top_fa, la, 0);
4449 bf_set(lpfc_mbx_read_top_mm, la, 0);
4451 /* Invoke the lpfc_handle_latt mailbox command callback function */
4452 lpfc_mbx_cmpl_read_topology(phba, pmb);
4459 mempool_free(pmb, phba->mbox_mem_pool);
4463 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
4464 * @phba: pointer to lpfc hba data structure.
4465 * @acqe_fc: pointer to the async fc completion queue entry.
4467 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
4468 * that the event was received and then issue a read_topology mailbox command so
4469 * that the rest of the driver will treat it the same as SLI3.
4472 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
4474 struct lpfc_dmabuf *mp;
4477 struct lpfc_mbx_read_top *la;
4480 if (bf_get(lpfc_trailer_type, acqe_fc) !=
4481 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
4482 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4483 "2895 Non FC link Event detected.(%d)\n",
4484 bf_get(lpfc_trailer_type, acqe_fc));
4487 /* Keep the link status for extra SLI4 state machine reference */
4488 phba->sli4_hba.link_state.speed =
4489 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4490 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4491 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4492 phba->sli4_hba.link_state.topology =
4493 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4494 phba->sli4_hba.link_state.status =
4495 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4496 phba->sli4_hba.link_state.type =
4497 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4498 phba->sli4_hba.link_state.number =
4499 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4500 phba->sli4_hba.link_state.fault =
4501 bf_get(lpfc_acqe_link_fault, acqe_fc);
4502 phba->sli4_hba.link_state.logical_speed =
4503 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4504 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4505 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4506 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4507 "%dMbps Fault:%d\n",
4508 phba->sli4_hba.link_state.speed,
4509 phba->sli4_hba.link_state.topology,
4510 phba->sli4_hba.link_state.status,
4511 phba->sli4_hba.link_state.type,
4512 phba->sli4_hba.link_state.number,
4513 phba->sli4_hba.link_state.logical_speed,
4514 phba->sli4_hba.link_state.fault);
4515 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4517 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4518 "2897 The mboxq allocation failed\n");
4521 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4523 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4524 "2898 The lpfc_dmabuf allocation failed\n");
4527 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4529 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4530 "2899 The mbuf allocation failed\n");
4531 goto out_free_dmabuf;
4534 /* Cleanup any outstanding ELS commands */
4535 lpfc_els_flush_all_cmd(phba);
4537 /* Block ELS IOCBs until we have done process link event */
4538 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4540 /* Update link event statistics */
4541 phba->sli.slistat.link_event++;
4543 /* Create lpfc_handle_latt mailbox command from link ACQE */
4544 lpfc_read_topology(phba, pmb, mp);
4545 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4546 pmb->vport = phba->pport;
4548 if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
4549 /* Parse and translate status field */
4551 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba,
4554 /* Parse and translate link attention fields */
4555 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
4556 la->eventTag = acqe_fc->event_tag;
4558 if (phba->sli4_hba.link_state.status ==
4559 LPFC_FC_LA_TYPE_UNEXP_WWPN) {
4560 bf_set(lpfc_mbx_read_top_att_type, la,
4561 LPFC_FC_LA_TYPE_UNEXP_WWPN);
4563 bf_set(lpfc_mbx_read_top_att_type, la,
4564 LPFC_FC_LA_TYPE_LINK_DOWN);
4566 /* Invoke the mailbox command callback function */
4567 lpfc_mbx_cmpl_read_topology(phba, pmb);
4572 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4573 if (rc == MBX_NOT_FINISHED)
4574 goto out_free_dmabuf;
4580 mempool_free(pmb, phba->mbox_mem_pool);
4584 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4585 * @phba: pointer to lpfc hba data structure.
4586 * @acqe_fc: pointer to the async SLI completion queue entry.
4588 * This routine is to handle the SLI4 asynchronous SLI events.
4591 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4597 uint8_t operational = 0;
4598 struct temp_event temp_event_data;
4599 struct lpfc_acqe_misconfigured_event *misconfigured;
4600 struct Scsi_Host *shost;
4602 evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4604 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4605 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4606 "x%08x SLI Event Type:%d\n",
4607 acqe_sli->event_data1, acqe_sli->event_data2,
4610 port_name = phba->Port[0];
4611 if (port_name == 0x00)
4612 port_name = '?'; /* get port name is empty */
4615 case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4616 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4617 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4618 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4620 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4621 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4622 acqe_sli->event_data1, port_name);
4624 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
4625 shost = lpfc_shost_from_vport(phba->pport);
4626 fc_host_post_vendor_event(shost, fc_get_event_number(),
4627 sizeof(temp_event_data),
4628 (char *)&temp_event_data,
4629 SCSI_NL_VID_TYPE_PCI
4630 | PCI_VENDOR_ID_EMULEX);
4632 case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4633 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4634 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4635 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4637 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4638 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4639 acqe_sli->event_data1, port_name);
4641 shost = lpfc_shost_from_vport(phba->pport);
4642 fc_host_post_vendor_event(shost, fc_get_event_number(),
4643 sizeof(temp_event_data),
4644 (char *)&temp_event_data,
4645 SCSI_NL_VID_TYPE_PCI
4646 | PCI_VENDOR_ID_EMULEX);
4648 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4649 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4650 &acqe_sli->event_data1;
4652 /* fetch the status for this port */
4653 switch (phba->sli4_hba.lnk_info.lnk_no) {
4654 case LPFC_LINK_NUMBER_0:
4655 status = bf_get(lpfc_sli_misconfigured_port0_state,
4656 &misconfigured->theEvent);
4657 operational = bf_get(lpfc_sli_misconfigured_port0_op,
4658 &misconfigured->theEvent);
4660 case LPFC_LINK_NUMBER_1:
4661 status = bf_get(lpfc_sli_misconfigured_port1_state,
4662 &misconfigured->theEvent);
4663 operational = bf_get(lpfc_sli_misconfigured_port1_op,
4664 &misconfigured->theEvent);
4666 case LPFC_LINK_NUMBER_2:
4667 status = bf_get(lpfc_sli_misconfigured_port2_state,
4668 &misconfigured->theEvent);
4669 operational = bf_get(lpfc_sli_misconfigured_port2_op,
4670 &misconfigured->theEvent);
4672 case LPFC_LINK_NUMBER_3:
4673 status = bf_get(lpfc_sli_misconfigured_port3_state,
4674 &misconfigured->theEvent);
4675 operational = bf_get(lpfc_sli_misconfigured_port3_op,
4676 &misconfigured->theEvent);
4679 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4681 "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
4682 "event: Invalid link %d",
4683 phba->sli4_hba.lnk_info.lnk_no);
4687 /* Skip if optic state unchanged */
4688 if (phba->sli4_hba.lnk_info.optic_state == status)
4692 case LPFC_SLI_EVENT_STATUS_VALID:
4693 sprintf(message, "Physical Link is functional");
4695 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4696 sprintf(message, "Optics faulted/incorrectly "
4697 "installed/not installed - Reseat optics, "
4698 "if issue not resolved, replace.");
4700 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4702 "Optics of two types installed - Remove one "
4703 "optic or install matching pair of optics.");
4705 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4706 sprintf(message, "Incompatible optics - Replace with "
4707 "compatible optics for card to function.");
4709 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
4710 sprintf(message, "Unqualified optics - Replace with "
4711 "Avago optics for Warranty and Technical "
4712 "Support - Link is%s operational",
4713 (operational) ? " not" : "");
4715 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
4716 sprintf(message, "Uncertified optics - Replace with "
4717 "Avago-certified optics to enable link "
4718 "operation - Link is%s operational",
4719 (operational) ? " not" : "");
4722 /* firmware is reporting a status we don't know about */
4723 sprintf(message, "Unknown event status x%02x", status);
4726 phba->sli4_hba.lnk_info.optic_state = status;
4727 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4728 "3176 Port Name %c %s\n", port_name, message);
4730 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4731 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4732 "3192 Remote DPort Test Initiated - "
4733 "Event Data1:x%08x Event Data2: x%08x\n",
4734 acqe_sli->event_data1, acqe_sli->event_data2);
4737 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4738 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4739 "x%08x SLI Event Type:%d\n",
4740 acqe_sli->event_data1, acqe_sli->event_data2,
4747 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4748 * @vport: pointer to vport data structure.
4750 * This routine is to perform Clear Virtual Link (CVL) on a vport in
4751 * response to a CVL event.
4753 * Return the pointer to the ndlp with the vport if successful, otherwise
4756 static struct lpfc_nodelist *
4757 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4759 struct lpfc_nodelist *ndlp;
4760 struct Scsi_Host *shost;
4761 struct lpfc_hba *phba;
4768 ndlp = lpfc_findnode_did(vport, Fabric_DID);
4770 /* Cannot find existing Fabric ndlp, so allocate a new one */
4771 ndlp = lpfc_nlp_init(vport, Fabric_DID);
4774 /* Set the node type */
4775 ndlp->nlp_type |= NLP_FABRIC;
4776 /* Put ndlp onto node list */
4777 lpfc_enqueue_node(vport, ndlp);
4778 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4779 /* re-setup ndlp without removing from node list */
4780 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4784 if ((phba->pport->port_state < LPFC_FLOGI) &&
4785 (phba->pport->port_state != LPFC_VPORT_FAILED))
4787 /* If virtual link is not yet instantiated ignore CVL */
4788 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4789 && (vport->port_state != LPFC_VPORT_FAILED))
4791 shost = lpfc_shost_from_vport(vport);
4794 lpfc_linkdown_port(vport);
4795 lpfc_cleanup_pending_mbox(vport);
4796 spin_lock_irq(shost->host_lock);
4797 vport->fc_flag |= FC_VPORT_CVL_RCVD;
4798 spin_unlock_irq(shost->host_lock);
4804 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4805 * @vport: pointer to lpfc hba data structure.
4807 * This routine is to perform Clear Virtual Link (CVL) on all vports in
4808 * response to a FCF dead event.
4811 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4813 struct lpfc_vport **vports;
4816 vports = lpfc_create_vport_work_array(phba);
4818 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4819 lpfc_sli4_perform_vport_cvl(vports[i]);
4820 lpfc_destroy_vport_work_array(phba, vports);
4824 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4825 * @phba: pointer to lpfc hba data structure.
4826 * @acqe_link: pointer to the async fcoe completion queue entry.
4828 * This routine is to handle the SLI4 asynchronous fcoe event.
4831 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4832 struct lpfc_acqe_fip *acqe_fip)
4834 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4836 struct lpfc_vport *vport;
4837 struct lpfc_nodelist *ndlp;
4838 struct Scsi_Host *shost;
4839 int active_vlink_present;
4840 struct lpfc_vport **vports;
4843 phba->fc_eventTag = acqe_fip->event_tag;
4844 phba->fcoe_eventtag = acqe_fip->event_tag;
4845 switch (event_type) {
4846 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4847 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4848 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4849 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4851 "2546 New FCF event, evt_tag:x%x, "
4853 acqe_fip->event_tag,
4856 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4858 "2788 FCF param modified event, "
4859 "evt_tag:x%x, index:x%x\n",
4860 acqe_fip->event_tag,
4862 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4864 * During period of FCF discovery, read the FCF
4865 * table record indexed by the event to update
4866 * FCF roundrobin failover eligible FCF bmask.
4868 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4870 "2779 Read FCF (x%x) for updating "
4871 "roundrobin FCF failover bmask\n",
4873 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4876 /* If the FCF discovery is in progress, do nothing. */
4877 spin_lock_irq(&phba->hbalock);
4878 if (phba->hba_flag & FCF_TS_INPROG) {
4879 spin_unlock_irq(&phba->hbalock);
4882 /* If fast FCF failover rescan event is pending, do nothing */
4883 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4884 spin_unlock_irq(&phba->hbalock);
4888 /* If the FCF has been in discovered state, do nothing. */
4889 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4890 spin_unlock_irq(&phba->hbalock);
4893 spin_unlock_irq(&phba->hbalock);
4895 /* Otherwise, scan the entire FCF table and re-discover SAN */
4896 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4897 "2770 Start FCF table scan per async FCF "
4898 "event, evt_tag:x%x, index:x%x\n",
4899 acqe_fip->event_tag, acqe_fip->index);
4900 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4901 LPFC_FCOE_FCF_GET_FIRST);
4903 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4904 "2547 Issue FCF scan read FCF mailbox "
4905 "command failed (x%x)\n", rc);
4908 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4909 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4910 "2548 FCF Table full count 0x%x tag 0x%x\n",
4911 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4912 acqe_fip->event_tag);
4915 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4916 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4917 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4918 "2549 FCF (x%x) disconnected from network, "
4919 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4921 * If we are in the middle of FCF failover process, clear
4922 * the corresponding FCF bit in the roundrobin bitmap.
4924 spin_lock_irq(&phba->hbalock);
4925 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
4926 (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
4927 spin_unlock_irq(&phba->hbalock);
4928 /* Update FLOGI FCF failover eligible FCF bmask */
4929 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4932 spin_unlock_irq(&phba->hbalock);
4934 /* If the event is not for currently used fcf do nothing */
4935 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4939 * Otherwise, request the port to rediscover the entire FCF
4940 * table for a fast recovery from case that the current FCF
4941 * is no longer valid as we are not in the middle of FCF
4942 * failover process already.
4944 spin_lock_irq(&phba->hbalock);
4945 /* Mark the fast failover process in progress */
4946 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4947 spin_unlock_irq(&phba->hbalock);
4949 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4950 "2771 Start FCF fast failover process due to "
4951 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4952 "\n", acqe_fip->event_tag, acqe_fip->index);
4953 rc = lpfc_sli4_redisc_fcf_table(phba);
4955 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4957 "2772 Issue FCF rediscover mabilbox "
4958 "command failed, fail through to FCF "
4960 spin_lock_irq(&phba->hbalock);
4961 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4962 spin_unlock_irq(&phba->hbalock);
4964 * Last resort will fail over by treating this
4965 * as a link down to FCF registration.
4967 lpfc_sli4_fcf_dead_failthrough(phba);
4969 /* Reset FCF roundrobin bmask for new discovery */
4970 lpfc_sli4_clear_fcf_rr_bmask(phba);
4972 * Handling fast FCF failover to a DEAD FCF event is
4973 * considered equalivant to receiving CVL to all vports.
4975 lpfc_sli4_perform_all_vport_cvl(phba);
4978 case LPFC_FIP_EVENT_TYPE_CVL:
4979 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4980 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4981 "2718 Clear Virtual Link Received for VPI 0x%x"
4982 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4984 vport = lpfc_find_vport_by_vpid(phba,
4986 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4989 active_vlink_present = 0;
4991 vports = lpfc_create_vport_work_array(phba);
4993 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4995 if ((!(vports[i]->fc_flag &
4996 FC_VPORT_CVL_RCVD)) &&
4997 (vports[i]->port_state > LPFC_FDISC)) {
4998 active_vlink_present = 1;
5002 lpfc_destroy_vport_work_array(phba, vports);
5006 * Don't re-instantiate if vport is marked for deletion.
5007 * If we are here first then vport_delete is going to wait
5008 * for discovery to complete.
5010 if (!(vport->load_flag & FC_UNLOADING) &&
5011 active_vlink_present) {
5013 * If there are other active VLinks present,
5014 * re-instantiate the Vlink using FDISC.
5016 mod_timer(&ndlp->nlp_delayfunc,
5017 jiffies + msecs_to_jiffies(1000));
5018 shost = lpfc_shost_from_vport(vport);
5019 spin_lock_irq(shost->host_lock);
5020 ndlp->nlp_flag |= NLP_DELAY_TMO;
5021 spin_unlock_irq(shost->host_lock);
5022 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5023 vport->port_state = LPFC_FDISC;
5026 * Otherwise, we request port to rediscover
5027 * the entire FCF table for a fast recovery
5028 * from possible case that the current FCF
5029 * is no longer valid if we are not already
5030 * in the FCF failover process.
5032 spin_lock_irq(&phba->hbalock);
5033 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5034 spin_unlock_irq(&phba->hbalock);
5037 /* Mark the fast failover process in progress */
5038 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5039 spin_unlock_irq(&phba->hbalock);
5040 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5042 "2773 Start FCF failover per CVL, "
5043 "evt_tag:x%x\n", acqe_fip->event_tag);
5044 rc = lpfc_sli4_redisc_fcf_table(phba);
5046 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5048 "2774 Issue FCF rediscover "
5049 "mabilbox command failed, "
5050 "through to CVL event\n");
5051 spin_lock_irq(&phba->hbalock);
5052 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5053 spin_unlock_irq(&phba->hbalock);
5055 * Last resort will be re-try on the
5056 * the current registered FCF entry.
5058 lpfc_retry_pport_discovery(phba);
5061 * Reset FCF roundrobin bmask for new
5064 lpfc_sli4_clear_fcf_rr_bmask(phba);
5068 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5069 "0288 Unknown FCoE event type 0x%x event tag "
5070 "0x%x\n", event_type, acqe_fip->event_tag);
5076 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5077 * @phba: pointer to lpfc hba data structure.
5078 * @acqe_link: pointer to the async dcbx completion queue entry.
5080 * This routine is to handle the SLI4 asynchronous dcbx event.
5083 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5084 struct lpfc_acqe_dcbx *acqe_dcbx)
5086 phba->fc_eventTag = acqe_dcbx->event_tag;
5087 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5088 "0290 The SLI4 DCBX asynchronous event is not "
5093 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5094 * @phba: pointer to lpfc hba data structure.
5095 * @acqe_link: pointer to the async grp5 completion queue entry.
5097 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5098 * is an asynchronous notified of a logical link speed change. The Port
5099 * reports the logical link speed in units of 10Mbps.
5102 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5103 struct lpfc_acqe_grp5 *acqe_grp5)
5105 uint16_t prev_ll_spd;
5107 phba->fc_eventTag = acqe_grp5->event_tag;
5108 phba->fcoe_eventtag = acqe_grp5->event_tag;
5109 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5110 phba->sli4_hba.link_state.logical_speed =
5111 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5112 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5113 "2789 GRP5 Async Event: Updating logical link speed "
5114 "from %dMbps to %dMbps\n", prev_ll_spd,
5115 phba->sli4_hba.link_state.logical_speed);
5119 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5120 * @phba: pointer to lpfc hba data structure.
5122 * This routine is invoked by the worker thread to process all the pending
5123 * SLI4 asynchronous events.
5125 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5127 struct lpfc_cq_event *cq_event;
5129 /* First, declare the async event has been handled */
5130 spin_lock_irq(&phba->hbalock);
5131 phba->hba_flag &= ~ASYNC_EVENT;
5132 spin_unlock_irq(&phba->hbalock);
5133 /* Now, handle all the async events */
5134 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5135 /* Get the first event from the head of the event queue */
5136 spin_lock_irq(&phba->hbalock);
5137 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5138 cq_event, struct lpfc_cq_event, list);
5139 spin_unlock_irq(&phba->hbalock);
5140 /* Process the asynchronous event */
5141 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5142 case LPFC_TRAILER_CODE_LINK:
5143 lpfc_sli4_async_link_evt(phba,
5144 &cq_event->cqe.acqe_link);
5146 case LPFC_TRAILER_CODE_FCOE:
5147 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5149 case LPFC_TRAILER_CODE_DCBX:
5150 lpfc_sli4_async_dcbx_evt(phba,
5151 &cq_event->cqe.acqe_dcbx);
5153 case LPFC_TRAILER_CODE_GRP5:
5154 lpfc_sli4_async_grp5_evt(phba,
5155 &cq_event->cqe.acqe_grp5);
5157 case LPFC_TRAILER_CODE_FC:
5158 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5160 case LPFC_TRAILER_CODE_SLI:
5161 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5164 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5165 "1804 Invalid asynchrous event code: "
5166 "x%x\n", bf_get(lpfc_trailer_code,
5167 &cq_event->cqe.mcqe_cmpl));
5170 /* Free the completion event processed to the free pool */
5171 lpfc_sli4_cq_event_release(phba, cq_event);
5176 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
5177 * @phba: pointer to lpfc hba data structure.
5179 * This routine is invoked by the worker thread to process FCF table
5180 * rediscovery pending completion event.
5182 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
5186 spin_lock_irq(&phba->hbalock);
5187 /* Clear FCF rediscovery timeout event */
5188 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
5189 /* Clear driver fast failover FCF record flag */
5190 phba->fcf.failover_rec.flag = 0;
5191 /* Set state for FCF fast failover */
5192 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
5193 spin_unlock_irq(&phba->hbalock);
5195 /* Scan FCF table from the first entry to re-discover SAN */
5196 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5197 "2777 Start post-quiescent FCF table scan\n");
5198 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5200 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5201 "2747 Issue FCF scan read FCF mailbox "
5202 "command failed 0x%x\n", rc);
5206 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
5207 * @phba: pointer to lpfc hba data structure.
5208 * @dev_grp: The HBA PCI-Device group number.
5210 * This routine is invoked to set up the per HBA PCI-Device group function
5211 * API jump table entries.
5213 * Return: 0 if success, otherwise -ENODEV
5216 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5220 /* Set up lpfc PCI-device group */
5221 phba->pci_dev_grp = dev_grp;
5223 /* The LPFC_PCI_DEV_OC uses SLI4 */
5224 if (dev_grp == LPFC_PCI_DEV_OC)
5225 phba->sli_rev = LPFC_SLI_REV4;
5227 /* Set up device INIT API function jump table */
5228 rc = lpfc_init_api_table_setup(phba, dev_grp);
5231 /* Set up SCSI API function jump table */
5232 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
5235 /* Set up SLI API function jump table */
5236 rc = lpfc_sli_api_table_setup(phba, dev_grp);
5239 /* Set up MBOX API function jump table */
5240 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
5248 * lpfc_log_intr_mode - Log the active interrupt mode
5249 * @phba: pointer to lpfc hba data structure.
5250 * @intr_mode: active interrupt mode adopted.
5252 * This routine it invoked to log the currently used active interrupt mode
5255 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5257 switch (intr_mode) {
5259 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5260 "0470 Enable INTx interrupt mode.\n");
5263 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5264 "0481 Enabled MSI interrupt mode.\n");
5267 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5268 "0480 Enabled MSI-X interrupt mode.\n");
5271 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5272 "0482 Illegal interrupt mode.\n");
5279 * lpfc_enable_pci_dev - Enable a generic PCI device.
5280 * @phba: pointer to lpfc hba data structure.
5282 * This routine is invoked to enable the PCI device that is common to all
5287 * other values - error
5290 lpfc_enable_pci_dev(struct lpfc_hba *phba)
5292 struct pci_dev *pdev;
5294 /* Obtain PCI device reference */
5298 pdev = phba->pcidev;
5299 /* Enable PCI device */
5300 if (pci_enable_device_mem(pdev))
5302 /* Request PCI resource for the device */
5303 if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
5304 goto out_disable_device;
5305 /* Set up device as PCI master and save state for EEH */
5306 pci_set_master(pdev);
5307 pci_try_set_mwi(pdev);
5308 pci_save_state(pdev);
5310 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
5311 if (pci_is_pcie(pdev))
5312 pdev->needs_freset = 1;
5317 pci_disable_device(pdev);
5319 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5320 "1401 Failed to enable pci device\n");
5325 * lpfc_disable_pci_dev - Disable a generic PCI device.
5326 * @phba: pointer to lpfc hba data structure.
5328 * This routine is invoked to disable the PCI device that is common to all
5332 lpfc_disable_pci_dev(struct lpfc_hba *phba)
5334 struct pci_dev *pdev;
5336 /* Obtain PCI device reference */
5340 pdev = phba->pcidev;
5341 /* Release PCI resource and disable PCI device */
5342 pci_release_mem_regions(pdev);
5343 pci_disable_device(pdev);
5349 * lpfc_reset_hba - Reset a hba
5350 * @phba: pointer to lpfc hba data structure.
5352 * This routine is invoked to reset a hba device. It brings the HBA
5353 * offline, performs a board restart, and then brings the board back
5354 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
5355 * on outstanding mailbox commands.
5358 lpfc_reset_hba(struct lpfc_hba *phba)
5360 /* If resets are disabled then set error state and return. */
5361 if (!phba->cfg_enable_hba_reset) {
5362 phba->link_state = LPFC_HBA_ERROR;
5365 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
5366 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
5368 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
5370 lpfc_sli_brdrestart(phba);
5372 lpfc_unblock_mgmt_io(phba);
5376 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
5377 * @phba: pointer to lpfc hba data structure.
5379 * This function enables the PCI SR-IOV virtual functions to a physical
5380 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5381 * enable the number of virtual functions to the physical function. As
5382 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5383 * API call does not considered as an error condition for most of the device.
5386 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
5388 struct pci_dev *pdev = phba->pcidev;
5392 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
5396 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
5401 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
5402 * @phba: pointer to lpfc hba data structure.
5403 * @nr_vfn: number of virtual functions to be enabled.
5405 * This function enables the PCI SR-IOV virtual functions to a physical
5406 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5407 * enable the number of virtual functions to the physical function. As
5408 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5409 * API call does not considered as an error condition for most of the device.
5412 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
5414 struct pci_dev *pdev = phba->pcidev;
5415 uint16_t max_nr_vfn;
5418 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
5419 if (nr_vfn > max_nr_vfn) {
5420 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5421 "3057 Requested vfs (%d) greater than "
5422 "supported vfs (%d)", nr_vfn, max_nr_vfn);
5426 rc = pci_enable_sriov(pdev, nr_vfn);
5428 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5429 "2806 Failed to enable sriov on this device "
5430 "with vfn number nr_vf:%d, rc:%d\n",
5433 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5434 "2807 Successful enable sriov on this device "
5435 "with vfn number nr_vf:%d\n", nr_vfn);
5440 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5441 * @phba: pointer to lpfc hba data structure.
5443 * This routine is invoked to set up the driver internal resources before the
5444 * device specific resource setup to support the HBA device it attached to.
5448 * other values - error
5451 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5453 struct lpfc_sli *psli = &phba->sli;
5456 * Driver resources common to all SLI revisions
5458 atomic_set(&phba->fast_event_count, 0);
5459 spin_lock_init(&phba->hbalock);
5461 /* Initialize ndlp management spinlock */
5462 spin_lock_init(&phba->ndlp_lock);
5464 INIT_LIST_HEAD(&phba->port_list);
5465 INIT_LIST_HEAD(&phba->work_list);
5466 init_waitqueue_head(&phba->wait_4_mlo_m_q);
5468 /* Initialize the wait queue head for the kernel thread */
5469 init_waitqueue_head(&phba->work_waitq);
5471 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5472 "1403 Protocols supported %s %s %s\n",
5473 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
5475 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
5477 (phba->nvmet_support ? "NVMET" : " "));
5479 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
5480 /* Initialize the scsi buffer list used by driver for scsi IO */
5481 spin_lock_init(&phba->scsi_buf_list_get_lock);
5482 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5483 spin_lock_init(&phba->scsi_buf_list_put_lock);
5484 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5487 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
5488 (phba->nvmet_support == 0)) {
5489 /* Initialize the NVME buffer list used by driver for NVME IO */
5490 spin_lock_init(&phba->nvme_buf_list_get_lock);
5491 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get);
5492 spin_lock_init(&phba->nvme_buf_list_put_lock);
5493 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
5496 /* Initialize the fabric iocb list */
5497 INIT_LIST_HEAD(&phba->fabric_iocb_list);
5499 /* Initialize list to save ELS buffers */
5500 INIT_LIST_HEAD(&phba->elsbuf);
5502 /* Initialize FCF connection rec list */
5503 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5505 /* Initialize OAS configuration list */
5506 spin_lock_init(&phba->devicelock);
5507 INIT_LIST_HEAD(&phba->luns);
5509 /* MBOX heartbeat timer */
5510 setup_timer(&psli->mbox_tmo, lpfc_mbox_timeout, (unsigned long)phba);
5511 /* Fabric block timer */
5512 setup_timer(&phba->fabric_block_timer, lpfc_fabric_block_timeout,
5513 (unsigned long)phba);
5514 /* EA polling mode timer */
5515 setup_timer(&phba->eratt_poll, lpfc_poll_eratt,
5516 (unsigned long)phba);
5517 /* Heartbeat timer */
5518 setup_timer(&phba->hb_tmofunc, lpfc_hb_timeout, (unsigned long)phba);
5524 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
5525 * @phba: pointer to lpfc hba data structure.
5527 * This routine is invoked to set up the driver internal resources specific to
5528 * support the SLI-3 HBA device it attached to.
5532 * other values - error
5535 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
5540 * Initialize timers used by driver
5543 /* FCP polling mode timer */
5544 setup_timer(&phba->fcp_poll_timer, lpfc_poll_timeout,
5545 (unsigned long)phba);
5547 /* Host attention work mask setup */
5548 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
5549 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
5551 /* Get all the module params for configuring this host */
5552 lpfc_get_cfgparam(phba);
5553 /* Set up phase-1 common device driver resources */
5555 rc = lpfc_setup_driver_resource_phase1(phba);
5559 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
5560 phba->menlo_flag |= HBA_MENLO_SUPPORT;
5561 /* check for menlo minimum sg count */
5562 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
5563 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
5566 if (!phba->sli.sli3_ring)
5567 phba->sli.sli3_ring = kzalloc(LPFC_SLI3_MAX_RING *
5568 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5569 if (!phba->sli.sli3_ring)
5573 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5574 * used to create the sg_dma_buf_pool must be dynamically calculated.
5577 /* Initialize the host templates the configured values. */
5578 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5579 lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
5580 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5582 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5583 if (phba->cfg_enable_bg) {
5585 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5586 * the FCP rsp, and a BDE for each. Sice we have no control
5587 * over how many protection data segments the SCSI Layer
5588 * will hand us (ie: there could be one for every block
5589 * in the IO), we just allocate enough BDEs to accomidate
5590 * our max amount and we need to limit lpfc_sg_seg_cnt to
5591 * minimize the risk of running out.
5593 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5594 sizeof(struct fcp_rsp) +
5595 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5597 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5598 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5600 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5601 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5604 * The scsi_buf for a regular I/O will hold the FCP cmnd,
5605 * the FCP rsp, a BDE for each, and a BDE for up to
5606 * cfg_sg_seg_cnt data segments.
5608 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5609 sizeof(struct fcp_rsp) +
5610 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5612 /* Total BDEs in BPL for scsi_sg_list */
5613 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5616 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5617 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5618 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5619 phba->cfg_total_seg_cnt);
5621 phba->max_vpi = LPFC_MAX_VPI;
5622 /* This will be set to correct value after config_port mbox */
5623 phba->max_vports = 0;
5626 * Initialize the SLI Layer to run with lpfc HBAs.
5628 lpfc_sli_setup(phba);
5629 lpfc_sli_queue_init(phba);
5631 /* Allocate device driver memory */
5632 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5636 * Enable sr-iov virtual functions if supported and configured
5637 * through the module parameter.
5639 if (phba->cfg_sriov_nr_virtfn > 0) {
5640 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5641 phba->cfg_sriov_nr_virtfn);
5643 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5644 "2808 Requested number of SR-IOV "
5645 "virtual functions (%d) is not "
5647 phba->cfg_sriov_nr_virtfn);
5648 phba->cfg_sriov_nr_virtfn = 0;
5656 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5657 * @phba: pointer to lpfc hba data structure.
5659 * This routine is invoked to unset the driver internal resources set up
5660 * specific for supporting the SLI-3 HBA device it attached to.
5663 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5665 /* Free device driver memory allocated */
5666 lpfc_mem_free_all(phba);
5672 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5673 * @phba: pointer to lpfc hba data structure.
5675 * This routine is invoked to set up the driver internal resources specific to
5676 * support the SLI-4 HBA device it attached to.
5680 * other values - error
5683 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5685 LPFC_MBOXQ_t *mboxq;
5687 int rc, i, max_buf_size;
5688 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5689 struct lpfc_mqe *mqe;
5691 int fof_vectors = 0;
5694 phba->sli4_hba.num_online_cpu = num_online_cpus();
5695 phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
5696 phba->sli4_hba.curr_disp_cpu = 0;
5698 /* Get all the module params for configuring this host */
5699 lpfc_get_cfgparam(phba);
5701 /* Set up phase-1 common device driver resources */
5702 rc = lpfc_setup_driver_resource_phase1(phba);
5706 /* Before proceed, wait for POST done and device ready */
5707 rc = lpfc_sli4_post_status_check(phba);
5712 * Initialize timers used by driver
5715 setup_timer(&phba->rrq_tmr, lpfc_rrq_timeout, (unsigned long)phba);
5717 /* FCF rediscover timer */
5718 setup_timer(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo,
5719 (unsigned long)phba);
5722 * Control structure for handling external multi-buffer mailbox
5723 * command pass-through.
5725 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5726 sizeof(struct lpfc_mbox_ext_buf_ctx));
5727 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5729 phba->max_vpi = LPFC_MAX_VPI;
5731 /* This will be set to correct value after the read_config mbox */
5732 phba->max_vports = 0;
5734 /* Program the default value of vlan_id and fc_map */
5735 phba->valid_vlan = 0;
5736 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5737 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5738 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5741 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5742 * we will associate a new ring, for each EQ/CQ/WQ tuple.
5743 * The WQ create will allocate the ring.
5747 * It doesn't matter what family our adapter is in, we are
5748 * limited to 2 Pages, 512 SGEs, for our SGL.
5749 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5751 max_buf_size = (2 * SLI4_PAGE_SIZE);
5752 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5753 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5756 * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
5757 * used to create the sg_dma_buf_pool must be calculated.
5759 if (phba->cfg_enable_bg) {
5761 * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
5762 * the FCP rsp, and a SGE. Sice we have no control
5763 * over how many protection segments the SCSI Layer
5764 * will hand us (ie: there could be one for every block
5765 * in the IO), just allocate enough SGEs to accomidate
5766 * our max amount and we need to limit lpfc_sg_seg_cnt
5767 * to minimize the risk of running out.
5769 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5770 sizeof(struct fcp_rsp) + max_buf_size;
5772 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5773 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5775 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5776 phba->cfg_sg_seg_cnt =
5777 LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5780 * The scsi_buf for a regular I/O holds the FCP cmnd,
5781 * the FCP rsp, a SGE for each, and a SGE for up to
5782 * cfg_sg_seg_cnt data segments.
5784 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5785 sizeof(struct fcp_rsp) +
5786 ((phba->cfg_sg_seg_cnt + 2) *
5787 sizeof(struct sli4_sge));
5789 /* Total SGEs for scsi_sg_list */
5790 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5793 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only
5794 * need to post 1 page for the SGL.
5798 /* Initialize the host templates with the updated values. */
5799 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5800 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5801 lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
5803 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ)
5804 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5806 phba->cfg_sg_dma_buf_size =
5807 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5809 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5810 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5811 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5812 phba->cfg_total_seg_cnt);
5814 /* Initialize buffer queue management fields */
5815 INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
5816 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5817 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5820 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5822 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
5823 /* Initialize the Abort scsi buffer list used by driver */
5824 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5825 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5828 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
5829 /* Initialize the Abort nvme buffer list used by driver */
5830 spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock);
5831 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
5832 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
5833 /* Fast-path XRI aborted CQ Event work queue list */
5834 INIT_LIST_HEAD(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue);
5837 /* This abort list used by worker thread */
5838 spin_lock_init(&phba->sli4_hba.sgl_list_lock);
5839 spin_lock_init(&phba->sli4_hba.nvmet_io_lock);
5842 * Initialize driver internal slow-path work queues
5845 /* Driver internel slow-path CQ Event pool */
5846 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5847 /* Response IOCB work queue list */
5848 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5849 /* Asynchronous event CQ Event work queue list */
5850 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5851 /* Fast-path XRI aborted CQ Event work queue list */
5852 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5853 /* Slow-path XRI aborted CQ Event work queue list */
5854 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5855 /* Receive queue CQ Event work queue list */
5856 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5858 /* Initialize extent block lists. */
5859 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5860 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5861 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5862 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5864 /* Initialize mboxq lists. If the early init routines fail
5865 * these lists need to be correctly initialized.
5867 INIT_LIST_HEAD(&phba->sli.mboxq);
5868 INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
5870 /* initialize optic_state to 0xFF */
5871 phba->sli4_hba.lnk_info.optic_state = 0xff;
5873 /* Allocate device driver memory */
5874 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5878 /* IF Type 2 ports get initialized now. */
5879 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5880 LPFC_SLI_INTF_IF_TYPE_2) {
5881 rc = lpfc_pci_function_reset(phba);
5886 phba->temp_sensor_support = 1;
5889 /* Create the bootstrap mailbox command */
5890 rc = lpfc_create_bootstrap_mbox(phba);
5894 /* Set up the host's endian order with the device. */
5895 rc = lpfc_setup_endian_order(phba);
5897 goto out_free_bsmbx;
5899 /* Set up the hba's configuration parameters. */
5900 rc = lpfc_sli4_read_config(phba);
5902 goto out_free_bsmbx;
5903 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
5905 goto out_free_bsmbx;
5907 /* IF Type 0 ports get initialized now. */
5908 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5909 LPFC_SLI_INTF_IF_TYPE_0) {
5910 rc = lpfc_pci_function_reset(phba);
5912 goto out_free_bsmbx;
5915 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5919 goto out_free_bsmbx;
5922 /* Check for NVMET being configured */
5923 phba->nvmet_support = 0;
5924 if (lpfc_enable_nvmet_cnt) {
5926 /* First get WWN of HBA instance */
5927 lpfc_read_nv(phba, mboxq);
5928 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5929 if (rc != MBX_SUCCESS) {
5930 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5931 "6016 Mailbox failed , mbxCmd x%x "
5932 "READ_NV, mbxStatus x%x\n",
5933 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5934 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
5935 mempool_free(mboxq, phba->mbox_mem_pool);
5937 goto out_free_bsmbx;
5940 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
5942 wwn = cpu_to_be64(wwn);
5943 phba->sli4_hba.wwnn.u.name = wwn;
5944 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
5946 /* wwn is WWPN of HBA instance */
5947 wwn = cpu_to_be64(wwn);
5948 phba->sli4_hba.wwpn.u.name = wwn;
5950 /* Check to see if it matches any module parameter */
5951 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
5952 if (wwn == lpfc_enable_nvmet[i]) {
5953 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
5954 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5955 "6017 NVME Target %016llx\n",
5957 phba->nvmet_support = 1; /* a match */
5959 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5960 "6021 Can't enable NVME Target."
5961 " NVME_TARGET_FC infrastructure"
5962 " is not in kernel\n");
5968 lpfc_nvme_mod_param_dep(phba);
5970 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5971 lpfc_supported_pages(mboxq);
5972 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5974 mqe = &mboxq->u.mqe;
5975 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5976 LPFC_MAX_SUPPORTED_PAGES);
5977 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5978 switch (pn_page[i]) {
5979 case LPFC_SLI4_PARAMETERS:
5980 phba->sli4_hba.pc_sli4_params.supported = 1;
5986 /* Read the port's SLI4 Parameters capabilities if supported. */
5987 if (phba->sli4_hba.pc_sli4_params.supported)
5988 rc = lpfc_pc_sli4_params_get(phba, mboxq);
5990 mempool_free(mboxq, phba->mbox_mem_pool);
5992 goto out_free_bsmbx;
5997 * Get sli4 parameters that override parameters from Port capabilities.
5998 * If this call fails, it isn't critical unless the SLI4 parameters come
6001 rc = lpfc_get_sli4_parameters(phba, mboxq);
6003 if (phba->sli4_hba.extents_in_use &&
6004 phba->sli4_hba.rpi_hdrs_in_use) {
6005 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6006 "2999 Unsupported SLI4 Parameters "
6007 "Extents and RPI headers enabled.\n");
6009 mempool_free(mboxq, phba->mbox_mem_pool);
6010 goto out_free_bsmbx;
6013 mempool_free(mboxq, phba->mbox_mem_pool);
6015 /* Verify OAS is supported */
6016 lpfc_sli4_oas_verify(phba);
6020 /* Verify all the SLI4 queues */
6021 rc = lpfc_sli4_queue_verify(phba);
6023 goto out_free_bsmbx;
6025 /* Create driver internal CQE event pool */
6026 rc = lpfc_sli4_cq_event_pool_create(phba);
6028 goto out_free_bsmbx;
6030 /* Initialize sgl lists per host */
6031 lpfc_init_sgl_list(phba);
6033 /* Allocate and initialize active sgl array */
6034 rc = lpfc_init_active_sgl_array(phba);
6036 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6037 "1430 Failed to initialize sgl list.\n");
6038 goto out_destroy_cq_event_pool;
6040 rc = lpfc_sli4_init_rpi_hdrs(phba);
6042 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6043 "1432 Failed to initialize rpi headers.\n");
6044 goto out_free_active_sgl;
6047 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6048 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6049 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
6051 if (!phba->fcf.fcf_rr_bmask) {
6052 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6053 "2759 Failed allocate memory for FCF round "
6054 "robin failover bmask\n");
6056 goto out_remove_rpi_hdrs;
6059 phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs,
6060 sizeof(struct lpfc_hba_eq_hdl),
6062 if (!phba->sli4_hba.hba_eq_hdl) {
6063 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6064 "2572 Failed allocate memory for "
6065 "fast-path per-EQ handle array\n");
6067 goto out_free_fcf_rr_bmask;
6070 phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu,
6071 sizeof(struct lpfc_vector_map_info),
6073 if (!phba->sli4_hba.cpu_map) {
6074 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6075 "3327 Failed allocate memory for msi-x "
6076 "interrupt vector mapping\n");
6078 goto out_free_hba_eq_hdl;
6080 if (lpfc_used_cpu == NULL) {
6081 lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t),
6083 if (!lpfc_used_cpu) {
6084 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6085 "3335 Failed allocate memory for msi-x "
6086 "interrupt vector mapping\n");
6087 kfree(phba->sli4_hba.cpu_map);
6089 goto out_free_hba_eq_hdl;
6091 for (i = 0; i < lpfc_present_cpu; i++)
6092 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
6096 * Enable sr-iov virtual functions if supported and configured
6097 * through the module parameter.
6099 if (phba->cfg_sriov_nr_virtfn > 0) {
6100 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6101 phba->cfg_sriov_nr_virtfn);
6103 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6104 "3020 Requested number of SR-IOV "
6105 "virtual functions (%d) is not "
6107 phba->cfg_sriov_nr_virtfn);
6108 phba->cfg_sriov_nr_virtfn = 0;
6114 out_free_hba_eq_hdl:
6115 kfree(phba->sli4_hba.hba_eq_hdl);
6116 out_free_fcf_rr_bmask:
6117 kfree(phba->fcf.fcf_rr_bmask);
6118 out_remove_rpi_hdrs:
6119 lpfc_sli4_remove_rpi_hdrs(phba);
6120 out_free_active_sgl:
6121 lpfc_free_active_sgl(phba);
6122 out_destroy_cq_event_pool:
6123 lpfc_sli4_cq_event_pool_destroy(phba);
6125 lpfc_destroy_bootstrap_mbox(phba);
6127 lpfc_mem_free(phba);
6132 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
6133 * @phba: pointer to lpfc hba data structure.
6135 * This routine is invoked to unset the driver internal resources set up
6136 * specific for supporting the SLI-4 HBA device it attached to.
6139 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
6141 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6143 /* Free memory allocated for msi-x interrupt vector to CPU mapping */
6144 kfree(phba->sli4_hba.cpu_map);
6145 phba->sli4_hba.num_present_cpu = 0;
6146 phba->sli4_hba.num_online_cpu = 0;
6147 phba->sli4_hba.curr_disp_cpu = 0;
6149 /* Free memory allocated for fast-path work queue handles */
6150 kfree(phba->sli4_hba.hba_eq_hdl);
6152 /* Free the allocated rpi headers. */
6153 lpfc_sli4_remove_rpi_hdrs(phba);
6154 lpfc_sli4_remove_rpis(phba);
6156 /* Free eligible FCF index bmask */
6157 kfree(phba->fcf.fcf_rr_bmask);
6159 /* Free the ELS sgl list */
6160 lpfc_free_active_sgl(phba);
6161 lpfc_free_els_sgl_list(phba);
6162 lpfc_free_nvmet_sgl_list(phba);
6164 /* Free the completion queue EQ event pool */
6165 lpfc_sli4_cq_event_release_all(phba);
6166 lpfc_sli4_cq_event_pool_destroy(phba);
6168 /* Release resource identifiers. */
6169 lpfc_sli4_dealloc_resource_identifiers(phba);
6171 /* Free the bsmbx region. */
6172 lpfc_destroy_bootstrap_mbox(phba);
6174 /* Free the SLI Layer memory with SLI4 HBAs */
6175 lpfc_mem_free_all(phba);
6177 /* Free the current connect table */
6178 list_for_each_entry_safe(conn_entry, next_conn_entry,
6179 &phba->fcf_conn_rec_list, list) {
6180 list_del_init(&conn_entry->list);
6188 * lpfc_init_api_table_setup - Set up init api function jump table
6189 * @phba: The hba struct for which this call is being executed.
6190 * @dev_grp: The HBA PCI-Device group number.
6192 * This routine sets up the device INIT interface API function jump table
6195 * Returns: 0 - success, -ENODEV - failure.
6198 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6200 phba->lpfc_hba_init_link = lpfc_hba_init_link;
6201 phba->lpfc_hba_down_link = lpfc_hba_down_link;
6202 phba->lpfc_selective_reset = lpfc_selective_reset;
6204 case LPFC_PCI_DEV_LP:
6205 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
6206 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
6207 phba->lpfc_stop_port = lpfc_stop_port_s3;
6209 case LPFC_PCI_DEV_OC:
6210 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
6211 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
6212 phba->lpfc_stop_port = lpfc_stop_port_s4;
6215 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6216 "1431 Invalid HBA PCI-device group: 0x%x\n",
6225 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
6226 * @phba: pointer to lpfc hba data structure.
6228 * This routine is invoked to set up the driver internal resources after the
6229 * device specific resource setup to support the HBA device it attached to.
6233 * other values - error
6236 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
6240 /* Startup the kernel thread for this host adapter. */
6241 phba->worker_thread = kthread_run(lpfc_do_work, phba,
6242 "lpfc_worker_%d", phba->brd_no);
6243 if (IS_ERR(phba->worker_thread)) {
6244 error = PTR_ERR(phba->worker_thread);
6252 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
6253 * @phba: pointer to lpfc hba data structure.
6255 * This routine is invoked to unset the driver internal resources set up after
6256 * the device specific resource setup for supporting the HBA device it
6260 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
6262 /* Stop kernel worker thread */
6263 kthread_stop(phba->worker_thread);
6267 * lpfc_free_iocb_list - Free iocb list.
6268 * @phba: pointer to lpfc hba data structure.
6270 * This routine is invoked to free the driver's IOCB list and memory.
6273 lpfc_free_iocb_list(struct lpfc_hba *phba)
6275 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
6277 spin_lock_irq(&phba->hbalock);
6278 list_for_each_entry_safe(iocbq_entry, iocbq_next,
6279 &phba->lpfc_iocb_list, list) {
6280 list_del(&iocbq_entry->list);
6282 phba->total_iocbq_bufs--;
6284 spin_unlock_irq(&phba->hbalock);
6290 * lpfc_init_iocb_list - Allocate and initialize iocb list.
6291 * @phba: pointer to lpfc hba data structure.
6293 * This routine is invoked to allocate and initizlize the driver's IOCB
6294 * list and set up the IOCB tag array accordingly.
6298 * other values - error
6301 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
6303 struct lpfc_iocbq *iocbq_entry = NULL;
6307 /* Initialize and populate the iocb list per host. */
6308 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
6309 for (i = 0; i < iocb_count; i++) {
6310 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
6311 if (iocbq_entry == NULL) {
6312 printk(KERN_ERR "%s: only allocated %d iocbs of "
6313 "expected %d count. Unloading driver.\n",
6314 __func__, i, LPFC_IOCB_LIST_CNT);
6315 goto out_free_iocbq;
6318 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
6321 printk(KERN_ERR "%s: failed to allocate IOTAG. "
6322 "Unloading driver.\n", __func__);
6323 goto out_free_iocbq;
6325 iocbq_entry->sli4_lxritag = NO_XRI;
6326 iocbq_entry->sli4_xritag = NO_XRI;
6328 spin_lock_irq(&phba->hbalock);
6329 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
6330 phba->total_iocbq_bufs++;
6331 spin_unlock_irq(&phba->hbalock);
6337 lpfc_free_iocb_list(phba);
6343 * lpfc_free_sgl_list - Free a given sgl list.
6344 * @phba: pointer to lpfc hba data structure.
6345 * @sglq_list: pointer to the head of sgl list.
6347 * This routine is invoked to free a give sgl list and memory.
6350 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
6352 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6354 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
6355 list_del(&sglq_entry->list);
6356 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
6362 * lpfc_free_els_sgl_list - Free els sgl list.
6363 * @phba: pointer to lpfc hba data structure.
6365 * This routine is invoked to free the driver's els sgl list and memory.
6368 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
6370 LIST_HEAD(sglq_list);
6372 /* Retrieve all els sgls from driver list */
6373 spin_lock_irq(&phba->hbalock);
6374 spin_lock(&phba->sli4_hba.sgl_list_lock);
6375 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
6376 spin_unlock(&phba->sli4_hba.sgl_list_lock);
6377 spin_unlock_irq(&phba->hbalock);
6379 /* Now free the sgl list */
6380 lpfc_free_sgl_list(phba, &sglq_list);
6384 * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
6385 * @phba: pointer to lpfc hba data structure.
6387 * This routine is invoked to free the driver's nvmet sgl list and memory.
6390 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
6392 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6393 LIST_HEAD(sglq_list);
6395 /* Retrieve all nvmet sgls from driver list */
6396 spin_lock_irq(&phba->hbalock);
6397 spin_lock(&phba->sli4_hba.sgl_list_lock);
6398 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
6399 spin_unlock(&phba->sli4_hba.sgl_list_lock);
6400 spin_unlock_irq(&phba->hbalock);
6402 /* Now free the sgl list */
6403 list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
6404 list_del(&sglq_entry->list);
6405 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
6411 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
6412 * @phba: pointer to lpfc hba data structure.
6414 * This routine is invoked to allocate the driver's active sgl memory.
6415 * This array will hold the sglq_entry's for active IOs.
6418 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
6421 size = sizeof(struct lpfc_sglq *);
6422 size *= phba->sli4_hba.max_cfg_param.max_xri;
6424 phba->sli4_hba.lpfc_sglq_active_list =
6425 kzalloc(size, GFP_KERNEL);
6426 if (!phba->sli4_hba.lpfc_sglq_active_list)
6432 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
6433 * @phba: pointer to lpfc hba data structure.
6435 * This routine is invoked to walk through the array of active sglq entries
6436 * and free all of the resources.
6437 * This is just a place holder for now.
6440 lpfc_free_active_sgl(struct lpfc_hba *phba)
6442 kfree(phba->sli4_hba.lpfc_sglq_active_list);
6446 * lpfc_init_sgl_list - Allocate and initialize sgl list.
6447 * @phba: pointer to lpfc hba data structure.
6449 * This routine is invoked to allocate and initizlize the driver's sgl
6450 * list and set up the sgl xritag tag array accordingly.
6454 lpfc_init_sgl_list(struct lpfc_hba *phba)
6456 /* Initialize and populate the sglq list per host/VF. */
6457 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
6458 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
6459 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
6460 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6462 /* els xri-sgl book keeping */
6463 phba->sli4_hba.els_xri_cnt = 0;
6465 /* scsi xri-buffer book keeping */
6466 phba->sli4_hba.scsi_xri_cnt = 0;
6468 /* nvme xri-buffer book keeping */
6469 phba->sli4_hba.nvme_xri_cnt = 0;
6473 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
6474 * @phba: pointer to lpfc hba data structure.
6476 * This routine is invoked to post rpi header templates to the
6477 * port for those SLI4 ports that do not support extents. This routine
6478 * posts a PAGE_SIZE memory region to the port to hold up to
6479 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
6480 * and should be called only when interrupts are disabled.
6484 * -ERROR - otherwise.
6487 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
6490 struct lpfc_rpi_hdr *rpi_hdr;
6492 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
6493 if (!phba->sli4_hba.rpi_hdrs_in_use)
6495 if (phba->sli4_hba.extents_in_use)
6498 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
6500 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6501 "0391 Error during rpi post operation\n");
6502 lpfc_sli4_remove_rpis(phba);
6510 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
6511 * @phba: pointer to lpfc hba data structure.
6513 * This routine is invoked to allocate a single 4KB memory region to
6514 * support rpis and stores them in the phba. This single region
6515 * provides support for up to 64 rpis. The region is used globally
6519 * A valid rpi hdr on success.
6520 * A NULL pointer on any failure.
6522 struct lpfc_rpi_hdr *
6523 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
6525 uint16_t rpi_limit, curr_rpi_range;
6526 struct lpfc_dmabuf *dmabuf;
6527 struct lpfc_rpi_hdr *rpi_hdr;
6531 * If the SLI4 port supports extents, posting the rpi header isn't
6532 * required. Set the expected maximum count and let the actual value
6533 * get set when extents are fully allocated.
6535 if (!phba->sli4_hba.rpi_hdrs_in_use)
6537 if (phba->sli4_hba.extents_in_use)
6540 /* The limit on the logical index is just the max_rpi count. */
6541 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
6542 phba->sli4_hba.max_cfg_param.max_rpi - 1;
6544 spin_lock_irq(&phba->hbalock);
6546 * Establish the starting RPI in this header block. The starting
6547 * rpi is normalized to a zero base because the physical rpi is
6550 curr_rpi_range = phba->sli4_hba.next_rpi;
6551 spin_unlock_irq(&phba->hbalock);
6554 * The port has a limited number of rpis. The increment here
6555 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
6556 * and to allow the full max_rpi range per port.
6558 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
6559 rpi_count = rpi_limit - curr_rpi_range;
6561 rpi_count = LPFC_RPI_HDR_COUNT;
6566 * First allocate the protocol header region for the port. The
6567 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
6569 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6573 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
6574 LPFC_HDR_TEMPLATE_SIZE,
6575 &dmabuf->phys, GFP_KERNEL);
6576 if (!dmabuf->virt) {
6578 goto err_free_dmabuf;
6581 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
6583 goto err_free_coherent;
6586 /* Save the rpi header data for cleanup later. */
6587 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
6589 goto err_free_coherent;
6591 rpi_hdr->dmabuf = dmabuf;
6592 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6593 rpi_hdr->page_count = 1;
6594 spin_lock_irq(&phba->hbalock);
6596 /* The rpi_hdr stores the logical index only. */
6597 rpi_hdr->start_rpi = curr_rpi_range;
6598 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6601 * The next_rpi stores the next logical module-64 rpi value used
6602 * to post physical rpis in subsequent rpi postings.
6604 phba->sli4_hba.next_rpi += rpi_count;
6605 spin_unlock_irq(&phba->hbalock);
6609 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6610 dmabuf->virt, dmabuf->phys);
6617 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6618 * @phba: pointer to lpfc hba data structure.
6620 * This routine is invoked to remove all memory resources allocated
6621 * to support rpis for SLI4 ports not supporting extents. This routine
6622 * presumes the caller has released all rpis consumed by fabric or port
6623 * logins and is prepared to have the header pages removed.
6626 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6628 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6630 if (!phba->sli4_hba.rpi_hdrs_in_use)
6633 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6634 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6635 list_del(&rpi_hdr->list);
6636 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6637 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6638 kfree(rpi_hdr->dmabuf);
6642 /* There are no rpis available to the port now. */
6643 phba->sli4_hba.next_rpi = 0;
6647 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6648 * @pdev: pointer to pci device data structure.
6650 * This routine is invoked to allocate the driver hba data structure for an
6651 * HBA device. If the allocation is successful, the phba reference to the
6652 * PCI device data structure is set.
6655 * pointer to @phba - successful
6658 static struct lpfc_hba *
6659 lpfc_hba_alloc(struct pci_dev *pdev)
6661 struct lpfc_hba *phba;
6663 /* Allocate memory for HBA structure */
6664 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6666 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6670 /* Set reference to PCI device in HBA structure */
6671 phba->pcidev = pdev;
6673 /* Assign an unused board number */
6674 phba->brd_no = lpfc_get_instance();
6675 if (phba->brd_no < 0) {
6679 phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
6681 spin_lock_init(&phba->ct_ev_lock);
6682 INIT_LIST_HEAD(&phba->ct_ev_waiters);
6688 * lpfc_hba_free - Free driver hba data structure with a device.
6689 * @phba: pointer to lpfc hba data structure.
6691 * This routine is invoked to free the driver hba data structure with an
6695 lpfc_hba_free(struct lpfc_hba *phba)
6697 /* Release the driver assigned board number */
6698 idr_remove(&lpfc_hba_index, phba->brd_no);
6700 /* Free memory allocated with sli3 rings */
6701 kfree(phba->sli.sli3_ring);
6702 phba->sli.sli3_ring = NULL;
6709 * lpfc_create_shost - Create hba physical port with associated scsi host.
6710 * @phba: pointer to lpfc hba data structure.
6712 * This routine is invoked to create HBA physical port and associate a SCSI
6717 * other values - error
6720 lpfc_create_shost(struct lpfc_hba *phba)
6722 struct lpfc_vport *vport;
6723 struct Scsi_Host *shost;
6725 /* Initialize HBA FC structure */
6726 phba->fc_edtov = FF_DEF_EDTOV;
6727 phba->fc_ratov = FF_DEF_RATOV;
6728 phba->fc_altov = FF_DEF_ALTOV;
6729 phba->fc_arbtov = FF_DEF_ARBTOV;
6731 atomic_set(&phba->sdev_cnt, 0);
6732 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6736 shost = lpfc_shost_from_vport(vport);
6737 phba->pport = vport;
6739 if (phba->nvmet_support) {
6740 /* Only 1 vport (pport) will support NVME target */
6741 if (phba->txrdy_payload_pool == NULL) {
6742 phba->txrdy_payload_pool = pci_pool_create(
6743 "txrdy_pool", phba->pcidev,
6744 TXRDY_PAYLOAD_LEN, 16, 0);
6745 if (phba->txrdy_payload_pool) {
6746 phba->targetport = NULL;
6747 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
6748 lpfc_printf_log(phba, KERN_INFO,
6749 LOG_INIT | LOG_NVME_DISC,
6750 "6076 NVME Target Found\n");
6755 lpfc_debugfs_initialize(vport);
6756 /* Put reference to SCSI host to driver's device private data */
6757 pci_set_drvdata(phba->pcidev, shost);
6760 * At this point we are fully registered with PSA. In addition,
6761 * any initial discovery should be completed.
6763 vport->load_flag |= FC_ALLOW_FDMI;
6764 if (phba->cfg_enable_SmartSAN ||
6765 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
6767 /* Setup appropriate attribute masks */
6768 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
6769 if (phba->cfg_enable_SmartSAN)
6770 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
6772 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
6778 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6779 * @phba: pointer to lpfc hba data structure.
6781 * This routine is invoked to destroy HBA physical port and the associated
6785 lpfc_destroy_shost(struct lpfc_hba *phba)
6787 struct lpfc_vport *vport = phba->pport;
6789 /* Destroy physical port that associated with the SCSI host */
6790 destroy_port(vport);
6796 * lpfc_setup_bg - Setup Block guard structures and debug areas.
6797 * @phba: pointer to lpfc hba data structure.
6798 * @shost: the shost to be used to detect Block guard settings.
6800 * This routine sets up the local Block guard protocol settings for @shost.
6801 * This routine also allocates memory for debugging bg buffers.
6804 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6810 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
6811 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6812 "1478 Registering BlockGuard with the "
6815 old_mask = phba->cfg_prot_mask;
6816 old_guard = phba->cfg_prot_guard;
6818 /* Only allow supported values */
6819 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6820 SHOST_DIX_TYPE0_PROTECTION |
6821 SHOST_DIX_TYPE1_PROTECTION);
6822 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
6823 SHOST_DIX_GUARD_CRC);
6825 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6826 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6827 phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6829 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
6830 if ((old_mask != phba->cfg_prot_mask) ||
6831 (old_guard != phba->cfg_prot_guard))
6832 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6833 "1475 Registering BlockGuard with the "
6834 "SCSI layer: mask %d guard %d\n",
6835 phba->cfg_prot_mask,
6836 phba->cfg_prot_guard);
6838 scsi_host_set_prot(shost, phba->cfg_prot_mask);
6839 scsi_host_set_guard(shost, phba->cfg_prot_guard);
6841 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6842 "1479 Not Registering BlockGuard with the SCSI "
6843 "layer, Bad protection parameters: %d %d\n",
6844 old_mask, old_guard);
6847 if (!_dump_buf_data) {
6849 spin_lock_init(&_dump_buf_lock);
6851 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6852 if (_dump_buf_data) {
6853 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6854 "9043 BLKGRD: allocated %d pages for "
6855 "_dump_buf_data at 0x%p\n",
6856 (1 << pagecnt), _dump_buf_data);
6857 _dump_buf_data_order = pagecnt;
6858 memset(_dump_buf_data, 0,
6859 ((1 << PAGE_SHIFT) << pagecnt));
6864 if (!_dump_buf_data_order)
6865 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6866 "9044 BLKGRD: ERROR unable to allocate "
6867 "memory for hexdump\n");
6869 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6870 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
6871 "\n", _dump_buf_data);
6872 if (!_dump_buf_dif) {
6875 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6876 if (_dump_buf_dif) {
6877 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6878 "9046 BLKGRD: allocated %d pages for "
6879 "_dump_buf_dif at 0x%p\n",
6880 (1 << pagecnt), _dump_buf_dif);
6881 _dump_buf_dif_order = pagecnt;
6882 memset(_dump_buf_dif, 0,
6883 ((1 << PAGE_SHIFT) << pagecnt));
6888 if (!_dump_buf_dif_order)
6889 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6890 "9047 BLKGRD: ERROR unable to allocate "
6891 "memory for hexdump\n");
6893 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6894 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6899 * lpfc_post_init_setup - Perform necessary device post initialization setup.
6900 * @phba: pointer to lpfc hba data structure.
6902 * This routine is invoked to perform all the necessary post initialization
6903 * setup for the device.
6906 lpfc_post_init_setup(struct lpfc_hba *phba)
6908 struct Scsi_Host *shost;
6909 struct lpfc_adapter_event_header adapter_event;
6911 /* Get the default values for Model Name and Description */
6912 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6915 * hba setup may have changed the hba_queue_depth so we need to
6916 * adjust the value of can_queue.
6918 shost = pci_get_drvdata(phba->pcidev);
6919 shost->can_queue = phba->cfg_hba_queue_depth - 10;
6920 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6921 lpfc_setup_bg(phba, shost);
6923 lpfc_host_attrib_init(shost);
6925 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6926 spin_lock_irq(shost->host_lock);
6927 lpfc_poll_start_timer(phba);
6928 spin_unlock_irq(shost->host_lock);
6931 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6932 "0428 Perform SCSI scan\n");
6933 /* Send board arrival event to upper layer */
6934 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6935 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6936 fc_host_post_vendor_event(shost, fc_get_event_number(),
6937 sizeof(adapter_event),
6938 (char *) &adapter_event,
6944 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6945 * @phba: pointer to lpfc hba data structure.
6947 * This routine is invoked to set up the PCI device memory space for device
6948 * with SLI-3 interface spec.
6952 * other values - error
6955 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6957 struct pci_dev *pdev;
6958 unsigned long bar0map_len, bar2map_len;
6961 int error = -ENODEV;
6963 /* Obtain PCI device reference */
6967 pdev = phba->pcidev;
6969 /* Set the device DMA mask size */
6970 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6971 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6972 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6973 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6978 /* Get the bus address of Bar0 and Bar2 and the number of bytes
6979 * required by each mapping.
6981 phba->pci_bar0_map = pci_resource_start(pdev, 0);
6982 bar0map_len = pci_resource_len(pdev, 0);
6984 phba->pci_bar2_map = pci_resource_start(pdev, 2);
6985 bar2map_len = pci_resource_len(pdev, 2);
6987 /* Map HBA SLIM to a kernel virtual address. */
6988 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6989 if (!phba->slim_memmap_p) {
6990 dev_printk(KERN_ERR, &pdev->dev,
6991 "ioremap failed for SLIM memory.\n");
6995 /* Map HBA Control Registers to a kernel virtual address. */
6996 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6997 if (!phba->ctrl_regs_memmap_p) {
6998 dev_printk(KERN_ERR, &pdev->dev,
6999 "ioremap failed for HBA control registers.\n");
7000 goto out_iounmap_slim;
7003 /* Allocate memory for SLI-2 structures */
7004 phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7005 &phba->slim2p.phys, GFP_KERNEL);
7006 if (!phba->slim2p.virt)
7009 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7010 phba->mbox_ext = (phba->slim2p.virt +
7011 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7012 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7013 phba->IOCBs = (phba->slim2p.virt +
7014 offsetof(struct lpfc_sli2_slim, IOCBs));
7016 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7017 lpfc_sli_hbq_size(),
7018 &phba->hbqslimp.phys,
7020 if (!phba->hbqslimp.virt)
7023 hbq_count = lpfc_sli_hbq_count();
7024 ptr = phba->hbqslimp.virt;
7025 for (i = 0; i < hbq_count; ++i) {
7026 phba->hbqs[i].hbq_virt = ptr;
7027 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7028 ptr += (lpfc_hbq_defs[i]->entry_count *
7029 sizeof(struct lpfc_hbq_entry));
7031 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7032 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7034 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7036 phba->MBslimaddr = phba->slim_memmap_p;
7037 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7038 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7039 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7040 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7045 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7046 phba->slim2p.virt, phba->slim2p.phys);
7048 iounmap(phba->ctrl_regs_memmap_p);
7050 iounmap(phba->slim_memmap_p);
7056 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7057 * @phba: pointer to lpfc hba data structure.
7059 * This routine is invoked to unset the PCI device memory space for device
7060 * with SLI-3 interface spec.
7063 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7065 struct pci_dev *pdev;
7067 /* Obtain PCI device reference */
7071 pdev = phba->pcidev;
7073 /* Free coherent DMA memory allocated */
7074 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7075 phba->hbqslimp.virt, phba->hbqslimp.phys);
7076 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7077 phba->slim2p.virt, phba->slim2p.phys);
7079 /* I/O memory unmap */
7080 iounmap(phba->ctrl_regs_memmap_p);
7081 iounmap(phba->slim_memmap_p);
7087 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7088 * @phba: pointer to lpfc hba data structure.
7090 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
7091 * done and check status.
7093 * Return 0 if successful, otherwise -ENODEV.
7096 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
7098 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
7099 struct lpfc_register reg_data;
7100 int i, port_error = 0;
7103 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
7104 memset(®_data, 0, sizeof(reg_data));
7105 if (!phba->sli4_hba.PSMPHRregaddr)
7108 /* Wait up to 30 seconds for the SLI Port POST done and ready */
7109 for (i = 0; i < 3000; i++) {
7110 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
7111 &portsmphr_reg.word0) ||
7112 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
7113 /* Port has a fatal POST error, break out */
7114 port_error = -ENODEV;
7117 if (LPFC_POST_STAGE_PORT_READY ==
7118 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
7124 * If there was a port error during POST, then don't proceed with
7125 * other register reads as the data may not be valid. Just exit.
7128 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7129 "1408 Port Failed POST - portsmphr=0x%x, "
7130 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
7131 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
7132 portsmphr_reg.word0,
7133 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
7134 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
7135 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
7136 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
7137 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
7138 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
7139 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
7140 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
7142 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7143 "2534 Device Info: SLIFamily=0x%x, "
7144 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
7145 "SLIHint_2=0x%x, FT=0x%x\n",
7146 bf_get(lpfc_sli_intf_sli_family,
7147 &phba->sli4_hba.sli_intf),
7148 bf_get(lpfc_sli_intf_slirev,
7149 &phba->sli4_hba.sli_intf),
7150 bf_get(lpfc_sli_intf_if_type,
7151 &phba->sli4_hba.sli_intf),
7152 bf_get(lpfc_sli_intf_sli_hint1,
7153 &phba->sli4_hba.sli_intf),
7154 bf_get(lpfc_sli_intf_sli_hint2,
7155 &phba->sli4_hba.sli_intf),
7156 bf_get(lpfc_sli_intf_func_type,
7157 &phba->sli4_hba.sli_intf));
7159 * Check for other Port errors during the initialization
7160 * process. Fail the load if the port did not come up
7163 if_type = bf_get(lpfc_sli_intf_if_type,
7164 &phba->sli4_hba.sli_intf);
7166 case LPFC_SLI_INTF_IF_TYPE_0:
7167 phba->sli4_hba.ue_mask_lo =
7168 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
7169 phba->sli4_hba.ue_mask_hi =
7170 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
7172 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
7174 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
7175 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
7176 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
7177 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7178 "1422 Unrecoverable Error "
7179 "Detected during POST "
7180 "uerr_lo_reg=0x%x, "
7181 "uerr_hi_reg=0x%x, "
7182 "ue_mask_lo_reg=0x%x, "
7183 "ue_mask_hi_reg=0x%x\n",
7186 phba->sli4_hba.ue_mask_lo,
7187 phba->sli4_hba.ue_mask_hi);
7188 port_error = -ENODEV;
7191 case LPFC_SLI_INTF_IF_TYPE_2:
7192 /* Final checks. The port status should be clean. */
7193 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7195 (bf_get(lpfc_sliport_status_err, ®_data) &&
7196 !bf_get(lpfc_sliport_status_rn, ®_data))) {
7197 phba->work_status[0] =
7198 readl(phba->sli4_hba.u.if_type2.
7200 phba->work_status[1] =
7201 readl(phba->sli4_hba.u.if_type2.
7203 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7204 "2888 Unrecoverable port error "
7205 "following POST: port status reg "
7206 "0x%x, port_smphr reg 0x%x, "
7207 "error 1=0x%x, error 2=0x%x\n",
7209 portsmphr_reg.word0,
7210 phba->work_status[0],
7211 phba->work_status[1]);
7212 port_error = -ENODEV;
7215 case LPFC_SLI_INTF_IF_TYPE_1:
7224 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
7225 * @phba: pointer to lpfc hba data structure.
7226 * @if_type: The SLI4 interface type getting configured.
7228 * This routine is invoked to set up SLI4 BAR0 PCI config space register
7232 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7235 case LPFC_SLI_INTF_IF_TYPE_0:
7236 phba->sli4_hba.u.if_type0.UERRLOregaddr =
7237 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
7238 phba->sli4_hba.u.if_type0.UERRHIregaddr =
7239 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
7240 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
7241 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
7242 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
7243 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
7244 phba->sli4_hba.SLIINTFregaddr =
7245 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7247 case LPFC_SLI_INTF_IF_TYPE_2:
7248 phba->sli4_hba.u.if_type2.ERR1regaddr =
7249 phba->sli4_hba.conf_regs_memmap_p +
7250 LPFC_CTL_PORT_ER1_OFFSET;
7251 phba->sli4_hba.u.if_type2.ERR2regaddr =
7252 phba->sli4_hba.conf_regs_memmap_p +
7253 LPFC_CTL_PORT_ER2_OFFSET;
7254 phba->sli4_hba.u.if_type2.CTRLregaddr =
7255 phba->sli4_hba.conf_regs_memmap_p +
7256 LPFC_CTL_PORT_CTL_OFFSET;
7257 phba->sli4_hba.u.if_type2.STATUSregaddr =
7258 phba->sli4_hba.conf_regs_memmap_p +
7259 LPFC_CTL_PORT_STA_OFFSET;
7260 phba->sli4_hba.SLIINTFregaddr =
7261 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7262 phba->sli4_hba.PSMPHRregaddr =
7263 phba->sli4_hba.conf_regs_memmap_p +
7264 LPFC_CTL_PORT_SEM_OFFSET;
7265 phba->sli4_hba.RQDBregaddr =
7266 phba->sli4_hba.conf_regs_memmap_p +
7267 LPFC_ULP0_RQ_DOORBELL;
7268 phba->sli4_hba.WQDBregaddr =
7269 phba->sli4_hba.conf_regs_memmap_p +
7270 LPFC_ULP0_WQ_DOORBELL;
7271 phba->sli4_hba.EQCQDBregaddr =
7272 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
7273 phba->sli4_hba.MQDBregaddr =
7274 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
7275 phba->sli4_hba.BMBXregaddr =
7276 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
7278 case LPFC_SLI_INTF_IF_TYPE_1:
7280 dev_printk(KERN_ERR, &phba->pcidev->dev,
7281 "FATAL - unsupported SLI4 interface type - %d\n",
7288 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
7289 * @phba: pointer to lpfc hba data structure.
7291 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
7295 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
7297 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7298 LPFC_SLIPORT_IF0_SMPHR;
7299 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7301 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7303 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7308 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
7309 * @phba: pointer to lpfc hba data structure.
7310 * @vf: virtual function number
7312 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
7313 * based on the given viftual function number, @vf.
7315 * Return 0 if successful, otherwise -ENODEV.
7318 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
7320 if (vf > LPFC_VIR_FUNC_MAX)
7323 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7324 vf * LPFC_VFR_PAGE_SIZE +
7325 LPFC_ULP0_RQ_DOORBELL);
7326 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7327 vf * LPFC_VFR_PAGE_SIZE +
7328 LPFC_ULP0_WQ_DOORBELL);
7329 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7330 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
7331 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7332 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
7333 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7334 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
7339 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
7340 * @phba: pointer to lpfc hba data structure.
7342 * This routine is invoked to create the bootstrap mailbox
7343 * region consistent with the SLI-4 interface spec. This
7344 * routine allocates all memory necessary to communicate
7345 * mailbox commands to the port and sets up all alignment
7346 * needs. No locks are expected to be held when calling
7351 * -ENOMEM - could not allocated memory.
7354 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
7357 struct lpfc_dmabuf *dmabuf;
7358 struct dma_address *dma_address;
7362 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7367 * The bootstrap mailbox region is comprised of 2 parts
7368 * plus an alignment restriction of 16 bytes.
7370 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
7371 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
7372 &dmabuf->phys, GFP_KERNEL);
7373 if (!dmabuf->virt) {
7379 * Initialize the bootstrap mailbox pointers now so that the register
7380 * operations are simple later. The mailbox dma address is required
7381 * to be 16-byte aligned. Also align the virtual memory as each
7382 * maibox is copied into the bmbx mailbox region before issuing the
7383 * command to the port.
7385 phba->sli4_hba.bmbx.dmabuf = dmabuf;
7386 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
7388 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
7389 LPFC_ALIGN_16_BYTE);
7390 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
7391 LPFC_ALIGN_16_BYTE);
7394 * Set the high and low physical addresses now. The SLI4 alignment
7395 * requirement is 16 bytes and the mailbox is posted to the port
7396 * as two 30-bit addresses. The other data is a bit marking whether
7397 * the 30-bit address is the high or low address.
7398 * Upcast bmbx aphys to 64bits so shift instruction compiles
7399 * clean on 32 bit machines.
7401 dma_address = &phba->sli4_hba.bmbx.dma_address;
7402 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
7403 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
7404 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
7405 LPFC_BMBX_BIT1_ADDR_HI);
7407 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
7408 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
7409 LPFC_BMBX_BIT1_ADDR_LO);
7414 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
7415 * @phba: pointer to lpfc hba data structure.
7417 * This routine is invoked to teardown the bootstrap mailbox
7418 * region and release all host resources. This routine requires
7419 * the caller to ensure all mailbox commands recovered, no
7420 * additional mailbox comands are sent, and interrupts are disabled
7421 * before calling this routine.
7425 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
7427 dma_free_coherent(&phba->pcidev->dev,
7428 phba->sli4_hba.bmbx.bmbx_size,
7429 phba->sli4_hba.bmbx.dmabuf->virt,
7430 phba->sli4_hba.bmbx.dmabuf->phys);
7432 kfree(phba->sli4_hba.bmbx.dmabuf);
7433 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
7437 * lpfc_sli4_read_config - Get the config parameters.
7438 * @phba: pointer to lpfc hba data structure.
7440 * This routine is invoked to read the configuration parameters from the HBA.
7441 * The configuration parameters are used to set the base and maximum values
7442 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
7443 * allocation for the port.
7447 * -ENOMEM - No available memory
7448 * -EIO - The mailbox failed to complete successfully.
7451 lpfc_sli4_read_config(struct lpfc_hba *phba)
7454 struct lpfc_mbx_read_config *rd_config;
7455 union lpfc_sli4_cfg_shdr *shdr;
7456 uint32_t shdr_status, shdr_add_status;
7457 struct lpfc_mbx_get_func_cfg *get_func_cfg;
7458 struct lpfc_rsrc_desc_fcfcoe *desc;
7460 uint16_t forced_link_speed;
7462 int length, i, rc = 0, rc2;
7464 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7466 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7467 "2011 Unable to allocate memory for issuing "
7468 "SLI_CONFIG_SPECIAL mailbox command\n");
7472 lpfc_read_config(phba, pmb);
7474 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7475 if (rc != MBX_SUCCESS) {
7476 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7477 "2012 Mailbox failed , mbxCmd x%x "
7478 "READ_CONFIG, mbxStatus x%x\n",
7479 bf_get(lpfc_mqe_command, &pmb->u.mqe),
7480 bf_get(lpfc_mqe_status, &pmb->u.mqe));
7483 rd_config = &pmb->u.mqe.un.rd_config;
7484 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
7485 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
7486 phba->sli4_hba.lnk_info.lnk_tp =
7487 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
7488 phba->sli4_hba.lnk_info.lnk_no =
7489 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
7490 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7491 "3081 lnk_type:%d, lnk_numb:%d\n",
7492 phba->sli4_hba.lnk_info.lnk_tp,
7493 phba->sli4_hba.lnk_info.lnk_no);
7495 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
7496 "3082 Mailbox (x%x) returned ldv:x0\n",
7497 bf_get(lpfc_mqe_command, &pmb->u.mqe));
7498 phba->sli4_hba.extents_in_use =
7499 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
7500 phba->sli4_hba.max_cfg_param.max_xri =
7501 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
7502 phba->sli4_hba.max_cfg_param.xri_base =
7503 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
7504 phba->sli4_hba.max_cfg_param.max_vpi =
7505 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
7506 phba->sli4_hba.max_cfg_param.vpi_base =
7507 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
7508 phba->sli4_hba.max_cfg_param.max_rpi =
7509 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
7510 phba->sli4_hba.max_cfg_param.rpi_base =
7511 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
7512 phba->sli4_hba.max_cfg_param.max_vfi =
7513 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
7514 phba->sli4_hba.max_cfg_param.vfi_base =
7515 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
7516 phba->sli4_hba.max_cfg_param.max_fcfi =
7517 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
7518 phba->sli4_hba.max_cfg_param.max_eq =
7519 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
7520 phba->sli4_hba.max_cfg_param.max_rq =
7521 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
7522 phba->sli4_hba.max_cfg_param.max_wq =
7523 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
7524 phba->sli4_hba.max_cfg_param.max_cq =
7525 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
7526 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
7527 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
7528 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
7529 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
7530 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
7531 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
7532 phba->max_vports = phba->max_vpi;
7533 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7534 "2003 cfg params Extents? %d "
7539 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n",
7540 phba->sli4_hba.extents_in_use,
7541 phba->sli4_hba.max_cfg_param.xri_base,
7542 phba->sli4_hba.max_cfg_param.max_xri,
7543 phba->sli4_hba.max_cfg_param.vpi_base,
7544 phba->sli4_hba.max_cfg_param.max_vpi,
7545 phba->sli4_hba.max_cfg_param.vfi_base,
7546 phba->sli4_hba.max_cfg_param.max_vfi,
7547 phba->sli4_hba.max_cfg_param.rpi_base,
7548 phba->sli4_hba.max_cfg_param.max_rpi,
7549 phba->sli4_hba.max_cfg_param.max_fcfi,
7550 phba->sli4_hba.max_cfg_param.max_eq,
7551 phba->sli4_hba.max_cfg_param.max_cq,
7552 phba->sli4_hba.max_cfg_param.max_wq,
7553 phba->sli4_hba.max_cfg_param.max_rq);
7560 /* Update link speed if forced link speed is supported */
7561 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7562 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7564 bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
7565 if (forced_link_speed) {
7566 phba->hba_flag |= HBA_FORCED_LINK_SPEED;
7568 switch (forced_link_speed) {
7570 phba->cfg_link_speed =
7571 LPFC_USER_LINK_SPEED_1G;
7574 phba->cfg_link_speed =
7575 LPFC_USER_LINK_SPEED_2G;
7578 phba->cfg_link_speed =
7579 LPFC_USER_LINK_SPEED_4G;
7582 phba->cfg_link_speed =
7583 LPFC_USER_LINK_SPEED_8G;
7585 case LINK_SPEED_10G:
7586 phba->cfg_link_speed =
7587 LPFC_USER_LINK_SPEED_10G;
7589 case LINK_SPEED_16G:
7590 phba->cfg_link_speed =
7591 LPFC_USER_LINK_SPEED_16G;
7593 case LINK_SPEED_32G:
7594 phba->cfg_link_speed =
7595 LPFC_USER_LINK_SPEED_32G;
7598 phba->cfg_link_speed =
7599 LPFC_USER_LINK_SPEED_AUTO;
7602 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7603 "0047 Unrecognized link "
7606 phba->cfg_link_speed =
7607 LPFC_USER_LINK_SPEED_AUTO;
7612 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
7613 length = phba->sli4_hba.max_cfg_param.max_xri -
7614 lpfc_sli4_get_els_iocb_cnt(phba);
7615 if (phba->cfg_hba_queue_depth > length) {
7616 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7617 "3361 HBA queue depth changed from %d to %d\n",
7618 phba->cfg_hba_queue_depth, length);
7619 phba->cfg_hba_queue_depth = length;
7622 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
7623 LPFC_SLI_INTF_IF_TYPE_2)
7626 /* get the pf# and vf# for SLI4 if_type 2 port */
7627 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
7628 sizeof(struct lpfc_sli4_cfg_mhdr));
7629 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
7630 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
7631 length, LPFC_SLI4_MBX_EMBED);
7633 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7634 shdr = (union lpfc_sli4_cfg_shdr *)
7635 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
7636 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7637 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7638 if (rc2 || shdr_status || shdr_add_status) {
7639 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7640 "3026 Mailbox failed , mbxCmd x%x "
7641 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
7642 bf_get(lpfc_mqe_command, &pmb->u.mqe),
7643 bf_get(lpfc_mqe_status, &pmb->u.mqe));
7647 /* search for fc_fcoe resrouce descriptor */
7648 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
7650 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
7651 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
7652 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
7653 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
7654 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
7655 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
7658 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
7659 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
7660 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
7661 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
7662 phba->sli4_hba.iov.pf_number =
7663 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
7664 phba->sli4_hba.iov.vf_number =
7665 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
7670 if (i < LPFC_RSRC_DESC_MAX_NUM)
7671 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7672 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
7673 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
7674 phba->sli4_hba.iov.vf_number);
7676 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7677 "3028 GET_FUNCTION_CONFIG: failed to find "
7678 "Resrouce Descriptor:x%x\n",
7679 LPFC_RSRC_DESC_TYPE_FCFCOE);
7682 mempool_free(pmb, phba->mbox_mem_pool);
7687 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
7688 * @phba: pointer to lpfc hba data structure.
7690 * This routine is invoked to setup the port-side endian order when
7691 * the port if_type is 0. This routine has no function for other
7696 * -ENOMEM - No available memory
7697 * -EIO - The mailbox failed to complete successfully.
7700 lpfc_setup_endian_order(struct lpfc_hba *phba)
7702 LPFC_MBOXQ_t *mboxq;
7703 uint32_t if_type, rc = 0;
7704 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7705 HOST_ENDIAN_HIGH_WORD1};
7707 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7709 case LPFC_SLI_INTF_IF_TYPE_0:
7710 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7713 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7714 "0492 Unable to allocate memory for "
7715 "issuing SLI_CONFIG_SPECIAL mailbox "
7721 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
7722 * two words to contain special data values and no other data.
7724 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
7725 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
7726 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7727 if (rc != MBX_SUCCESS) {
7728 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7729 "0493 SLI_CONFIG_SPECIAL mailbox "
7730 "failed with status x%x\n",
7734 mempool_free(mboxq, phba->mbox_mem_pool);
7736 case LPFC_SLI_INTF_IF_TYPE_2:
7737 case LPFC_SLI_INTF_IF_TYPE_1:
7745 * lpfc_sli4_queue_verify - Verify and update EQ counts
7746 * @phba: pointer to lpfc hba data structure.
7748 * This routine is invoked to check the user settable queue counts for EQs.
7749 * After this routine is called the counts will be set to valid values that
7750 * adhere to the constraints of the system's interrupt vectors and the port's
7755 * -ENOMEM - No available memory
7758 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
7761 int fof_vectors = phba->cfg_fof ? 1 : 0;
7764 * Sanity check for configured queue parameters against the run-time
7768 /* Sanity check on HBA EQ parameters */
7769 io_channel = phba->io_channel_irqs;
7771 if (phba->sli4_hba.num_online_cpu < io_channel) {
7772 lpfc_printf_log(phba,
7774 "3188 Reducing IO channels to match number of "
7775 "online CPUs: from %d to %d\n",
7776 io_channel, phba->sli4_hba.num_online_cpu);
7777 io_channel = phba->sli4_hba.num_online_cpu;
7780 if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) {
7781 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7782 "2575 Reducing IO channels to match number of "
7783 "available EQs: from %d to %d\n",
7785 phba->sli4_hba.max_cfg_param.max_eq);
7786 io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors;
7789 /* The actual number of FCP / NVME event queues adopted */
7790 if (io_channel != phba->io_channel_irqs)
7791 phba->io_channel_irqs = io_channel;
7792 if (phba->cfg_fcp_io_channel > io_channel)
7793 phba->cfg_fcp_io_channel = io_channel;
7794 if (phba->cfg_nvme_io_channel > io_channel)
7795 phba->cfg_nvme_io_channel = io_channel;
7796 if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq)
7797 phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel;
7799 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7800 "2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n",
7801 phba->io_channel_irqs, phba->cfg_fcp_io_channel,
7802 phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq);
7804 /* Get EQ depth from module parameter, fake the default for now */
7805 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7806 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7808 /* Get CQ depth from module parameter, fake the default for now */
7809 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7810 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7815 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx)
7817 struct lpfc_queue *qdesc;
7820 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7821 phba->sli4_hba.cq_ecount);
7823 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7824 "0508 Failed allocate fast-path NVME CQ (%d)\n",
7828 phba->sli4_hba.nvme_cq[wqidx] = qdesc;
7830 cnt = LPFC_NVME_WQSIZE;
7831 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_WQE128_SIZE, cnt);
7833 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7834 "0509 Failed allocate fast-path NVME WQ (%d)\n",
7838 phba->sli4_hba.nvme_wq[wqidx] = qdesc;
7839 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
7844 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx)
7846 struct lpfc_queue *qdesc;
7849 /* Create Fast Path FCP CQs */
7850 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7851 phba->sli4_hba.cq_ecount);
7853 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7854 "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx);
7857 phba->sli4_hba.fcp_cq[wqidx] = qdesc;
7859 /* Create Fast Path FCP WQs */
7860 wqesize = (phba->fcp_embed_io) ?
7861 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
7862 qdesc = lpfc_sli4_queue_alloc(phba, wqesize, phba->sli4_hba.wq_ecount);
7864 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7865 "0503 Failed allocate fast-path FCP WQ (%d)\n",
7869 phba->sli4_hba.fcp_wq[wqidx] = qdesc;
7870 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
7875 * lpfc_sli4_queue_create - Create all the SLI4 queues
7876 * @phba: pointer to lpfc hba data structure.
7878 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
7879 * operation. For each SLI4 queue type, the parameters such as queue entry
7880 * count (queue depth) shall be taken from the module parameter. For now,
7881 * we just use some constant number as place holder.
7885 * -ENOMEM - No availble memory
7886 * -EIO - The mailbox failed to complete successfully.
7889 lpfc_sli4_queue_create(struct lpfc_hba *phba)
7891 struct lpfc_queue *qdesc;
7892 int idx, io_channel;
7895 * Create HBA Record arrays.
7896 * Both NVME and FCP will share that same vectors / EQs
7898 io_channel = phba->io_channel_irqs;
7902 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
7903 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
7904 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
7905 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
7906 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
7907 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
7908 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7909 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7910 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7911 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7913 phba->sli4_hba.hba_eq = kcalloc(io_channel,
7914 sizeof(struct lpfc_queue *),
7916 if (!phba->sli4_hba.hba_eq) {
7917 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7918 "2576 Failed allocate memory for "
7919 "fast-path EQ record array\n");
7923 if (phba->cfg_fcp_io_channel) {
7924 phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel,
7925 sizeof(struct lpfc_queue *),
7927 if (!phba->sli4_hba.fcp_cq) {
7928 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7929 "2577 Failed allocate memory for "
7930 "fast-path CQ record array\n");
7933 phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel,
7934 sizeof(struct lpfc_queue *),
7936 if (!phba->sli4_hba.fcp_wq) {
7937 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7938 "2578 Failed allocate memory for "
7939 "fast-path FCP WQ record array\n");
7943 * Since the first EQ can have multiple CQs associated with it,
7944 * this array is used to quickly see if we have a FCP fast-path
7947 phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel,
7950 if (!phba->sli4_hba.fcp_cq_map) {
7951 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7952 "2545 Failed allocate memory for "
7953 "fast-path CQ map\n");
7958 if (phba->cfg_nvme_io_channel) {
7959 phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel,
7960 sizeof(struct lpfc_queue *),
7962 if (!phba->sli4_hba.nvme_cq) {
7963 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7964 "6077 Failed allocate memory for "
7965 "fast-path CQ record array\n");
7969 phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel,
7970 sizeof(struct lpfc_queue *),
7972 if (!phba->sli4_hba.nvme_wq) {
7973 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7974 "2581 Failed allocate memory for "
7975 "fast-path NVME WQ record array\n");
7980 * Since the first EQ can have multiple CQs associated with it,
7981 * this array is used to quickly see if we have a NVME fast-path
7984 phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel,
7987 if (!phba->sli4_hba.nvme_cq_map) {
7988 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7989 "6078 Failed allocate memory for "
7990 "fast-path CQ map\n");
7994 if (phba->nvmet_support) {
7995 phba->sli4_hba.nvmet_cqset = kcalloc(
7996 phba->cfg_nvmet_mrq,
7997 sizeof(struct lpfc_queue *),
7999 if (!phba->sli4_hba.nvmet_cqset) {
8000 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8001 "3121 Fail allocate memory for "
8002 "fast-path CQ set array\n");
8005 phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
8006 phba->cfg_nvmet_mrq,
8007 sizeof(struct lpfc_queue *),
8009 if (!phba->sli4_hba.nvmet_mrq_hdr) {
8010 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8011 "3122 Fail allocate memory for "
8012 "fast-path RQ set hdr array\n");
8015 phba->sli4_hba.nvmet_mrq_data = kcalloc(
8016 phba->cfg_nvmet_mrq,
8017 sizeof(struct lpfc_queue *),
8019 if (!phba->sli4_hba.nvmet_mrq_data) {
8020 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8021 "3124 Fail allocate memory for "
8022 "fast-path RQ set data array\n");
8028 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8030 /* Create HBA Event Queues (EQs) */
8031 for (idx = 0; idx < io_channel; idx++) {
8033 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
8034 phba->sli4_hba.eq_ecount);
8036 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8037 "0497 Failed allocate EQ (%d)\n", idx);
8040 phba->sli4_hba.hba_eq[idx] = qdesc;
8043 /* FCP and NVME io channels are not required to be balanced */
8045 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8046 if (lpfc_alloc_fcp_wq_cq(phba, idx))
8049 for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++)
8050 if (lpfc_alloc_nvme_wq_cq(phba, idx))
8053 if (phba->nvmet_support) {
8054 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8055 qdesc = lpfc_sli4_queue_alloc(phba,
8056 phba->sli4_hba.cq_esize,
8057 phba->sli4_hba.cq_ecount);
8059 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8060 "3142 Failed allocate NVME "
8061 "CQ Set (%d)\n", idx);
8064 phba->sli4_hba.nvmet_cqset[idx] = qdesc;
8069 * Create Slow Path Completion Queues (CQs)
8072 /* Create slow-path Mailbox Command Complete Queue */
8073 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
8074 phba->sli4_hba.cq_ecount);
8076 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8077 "0500 Failed allocate slow-path mailbox CQ\n");
8080 phba->sli4_hba.mbx_cq = qdesc;
8082 /* Create slow-path ELS Complete Queue */
8083 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
8084 phba->sli4_hba.cq_ecount);
8086 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8087 "0501 Failed allocate slow-path ELS CQ\n");
8090 phba->sli4_hba.els_cq = qdesc;
8094 * Create Slow Path Work Queues (WQs)
8097 /* Create Mailbox Command Queue */
8099 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
8100 phba->sli4_hba.mq_ecount);
8102 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8103 "0505 Failed allocate slow-path MQ\n");
8106 phba->sli4_hba.mbx_wq = qdesc;
8109 * Create ELS Work Queues
8112 /* Create slow-path ELS Work Queue */
8113 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
8114 phba->sli4_hba.wq_ecount);
8116 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8117 "0504 Failed allocate slow-path ELS WQ\n");
8120 phba->sli4_hba.els_wq = qdesc;
8121 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8123 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8124 /* Create NVME LS Complete Queue */
8125 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
8126 phba->sli4_hba.cq_ecount);
8128 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8129 "6079 Failed allocate NVME LS CQ\n");
8132 phba->sli4_hba.nvmels_cq = qdesc;
8134 /* Create NVME LS Work Queue */
8135 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
8136 phba->sli4_hba.wq_ecount);
8138 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8139 "6080 Failed allocate NVME LS WQ\n");
8142 phba->sli4_hba.nvmels_wq = qdesc;
8143 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8147 * Create Receive Queue (RQ)
8150 /* Create Receive Queue for header */
8151 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
8152 phba->sli4_hba.rq_ecount);
8154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8155 "0506 Failed allocate receive HRQ\n");
8158 phba->sli4_hba.hdr_rq = qdesc;
8160 /* Create Receive Queue for data */
8161 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
8162 phba->sli4_hba.rq_ecount);
8164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8165 "0507 Failed allocate receive DRQ\n");
8168 phba->sli4_hba.dat_rq = qdesc;
8170 if (phba->nvmet_support) {
8171 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8172 /* Create NVMET Receive Queue for header */
8173 qdesc = lpfc_sli4_queue_alloc(phba,
8174 phba->sli4_hba.rq_esize,
8175 phba->sli4_hba.rq_ecount);
8177 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8178 "3146 Failed allocate "
8182 phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
8184 /* Only needed for header of RQ pair */
8185 qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb),
8187 if (qdesc->rqbp == NULL) {
8188 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8189 "6131 Failed allocate "
8194 /* Create NVMET Receive Queue for data */
8195 qdesc = lpfc_sli4_queue_alloc(phba,
8196 phba->sli4_hba.rq_esize,
8197 phba->sli4_hba.rq_ecount);
8199 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8200 "3156 Failed allocate "
8204 phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
8208 /* Create the Queues needed for Flash Optimized Fabric operations */
8210 lpfc_fof_queue_create(phba);
8214 lpfc_sli4_queue_destroy(phba);
8219 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
8222 lpfc_sli4_queue_free(*qp);
8228 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
8235 for (idx = 0; idx < max; idx++)
8236 __lpfc_sli4_release_queue(&(*qs)[idx]);
8243 lpfc_sli4_release_queue_map(uint16_t **qmap)
8245 if (*qmap != NULL) {
8252 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
8253 * @phba: pointer to lpfc hba data structure.
8255 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
8260 * -ENOMEM - No available memory
8261 * -EIO - The mailbox failed to complete successfully.
8264 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
8267 lpfc_fof_queue_destroy(phba);
8269 /* Release HBA eqs */
8270 lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs);
8272 /* Release FCP cqs */
8273 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq,
8274 phba->cfg_fcp_io_channel);
8276 /* Release FCP wqs */
8277 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq,
8278 phba->cfg_fcp_io_channel);
8280 /* Release FCP CQ mapping array */
8281 lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map);
8283 /* Release NVME cqs */
8284 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq,
8285 phba->cfg_nvme_io_channel);
8287 /* Release NVME wqs */
8288 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq,
8289 phba->cfg_nvme_io_channel);
8291 /* Release NVME CQ mapping array */
8292 lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map);
8294 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
8295 phba->cfg_nvmet_mrq);
8297 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
8298 phba->cfg_nvmet_mrq);
8299 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
8300 phba->cfg_nvmet_mrq);
8302 /* Release mailbox command work queue */
8303 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
8305 /* Release ELS work queue */
8306 __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
8308 /* Release ELS work queue */
8309 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
8311 /* Release unsolicited receive queue */
8312 __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
8313 __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
8315 /* Release ELS complete queue */
8316 __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
8318 /* Release NVME LS complete queue */
8319 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
8321 /* Release mailbox command complete queue */
8322 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
8324 /* Everything on this list has been freed */
8325 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8329 lpfc_post_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *hrq,
8330 struct lpfc_queue *drq, int count)
8333 struct lpfc_rqe hrqe;
8334 struct lpfc_rqe drqe;
8335 struct lpfc_rqb *rqbp;
8336 struct rqb_dmabuf *rqb_buffer;
8337 LIST_HEAD(rqb_buf_list);
8340 for (i = 0; i < count; i++) {
8341 rqb_buffer = (rqbp->rqb_alloc_buffer)(phba);
8344 rqb_buffer->hrq = hrq;
8345 rqb_buffer->drq = drq;
8346 list_add_tail(&rqb_buffer->hbuf.list, &rqb_buf_list);
8348 while (!list_empty(&rqb_buf_list)) {
8349 list_remove_head(&rqb_buf_list, rqb_buffer, struct rqb_dmabuf,
8352 hrqe.address_lo = putPaddrLow(rqb_buffer->hbuf.phys);
8353 hrqe.address_hi = putPaddrHigh(rqb_buffer->hbuf.phys);
8354 drqe.address_lo = putPaddrLow(rqb_buffer->dbuf.phys);
8355 drqe.address_hi = putPaddrHigh(rqb_buffer->dbuf.phys);
8356 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
8358 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
8360 list_add_tail(&rqb_buffer->hbuf.list,
8361 &rqbp->rqb_buffer_list);
8362 rqbp->buffer_count++;
8369 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
8371 struct lpfc_rqb *rqbp;
8372 struct lpfc_dmabuf *h_buf;
8373 struct rqb_dmabuf *rqb_buffer;
8376 while (!list_empty(&rqbp->rqb_buffer_list)) {
8377 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
8378 struct lpfc_dmabuf, list);
8380 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
8381 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
8382 rqbp->buffer_count--;
8388 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
8389 struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
8390 int qidx, uint32_t qtype)
8392 struct lpfc_sli_ring *pring;
8395 if (!eq || !cq || !wq) {
8396 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8397 "6085 Fast-path %s (%d) not allocated\n",
8398 ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
8402 /* create the Cq first */
8403 rc = lpfc_cq_create(phba, cq, eq,
8404 (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
8406 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8407 "6086 Failed setup of CQ (%d), rc = 0x%x\n",
8408 qidx, (uint32_t)rc);
8412 if (qtype != LPFC_MBOX) {
8413 /* Setup nvme_cq_map for fast lookup */
8415 *cq_map = cq->queue_id;
8417 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8418 "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
8419 qidx, cq->queue_id, qidx, eq->queue_id);
8422 rc = lpfc_wq_create(phba, wq, cq, qtype);
8424 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8425 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n",
8426 qidx, (uint32_t)rc);
8427 /* no need to tear down cq - caller will do so */
8431 /* Bind this CQ/WQ to the NVME ring */
8433 pring->sli.sli4.wqp = (void *)wq;
8436 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8437 "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
8438 qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
8440 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
8442 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8443 "0539 Failed setup of slow-path MQ: "
8445 /* no need to tear down cq - caller will do so */
8449 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8450 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
8451 phba->sli4_hba.mbx_wq->queue_id,
8452 phba->sli4_hba.mbx_cq->queue_id);
8459 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
8460 * @phba: pointer to lpfc hba data structure.
8462 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
8467 * -ENOMEM - No available memory
8468 * -EIO - The mailbox failed to complete successfully.
8471 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
8473 uint32_t shdr_status, shdr_add_status;
8474 union lpfc_sli4_cfg_shdr *shdr;
8475 LPFC_MBOXQ_t *mboxq;
8477 uint32_t length, io_channel;
8480 /* Check for dual-ULP support */
8481 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8483 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8484 "3249 Unable to allocate memory for "
8485 "QUERY_FW_CFG mailbox command\n");
8488 length = (sizeof(struct lpfc_mbx_query_fw_config) -
8489 sizeof(struct lpfc_sli4_cfg_mhdr));
8490 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8491 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
8492 length, LPFC_SLI4_MBX_EMBED);
8494 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8496 shdr = (union lpfc_sli4_cfg_shdr *)
8497 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8498 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8499 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8500 if (shdr_status || shdr_add_status || rc) {
8501 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8502 "3250 QUERY_FW_CFG mailbox failed with status "
8503 "x%x add_status x%x, mbx status x%x\n",
8504 shdr_status, shdr_add_status, rc);
8505 if (rc != MBX_TIMEOUT)
8506 mempool_free(mboxq, phba->mbox_mem_pool);
8511 phba->sli4_hba.fw_func_mode =
8512 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
8513 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
8514 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
8515 phba->sli4_hba.physical_port =
8516 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
8517 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8518 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
8519 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
8520 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
8522 if (rc != MBX_TIMEOUT)
8523 mempool_free(mboxq, phba->mbox_mem_pool);
8526 * Set up HBA Event Queues (EQs)
8528 io_channel = phba->io_channel_irqs;
8530 /* Set up HBA event queue */
8531 if (io_channel && !phba->sli4_hba.hba_eq) {
8532 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8533 "3147 Fast-path EQs not allocated\n");
8537 for (qidx = 0; qidx < io_channel; qidx++) {
8538 if (!phba->sli4_hba.hba_eq[qidx]) {
8539 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8540 "0522 Fast-path EQ (%d) not "
8541 "allocated\n", qidx);
8545 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx],
8546 phba->cfg_fcp_imax);
8548 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8549 "0523 Failed setup of fast-path EQ "
8550 "(%d), rc = 0x%x\n", qidx,
8554 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8555 "2584 HBA EQ setup: queue[%d]-id=%d\n",
8556 qidx, phba->sli4_hba.hba_eq[qidx]->queue_id);
8559 if (phba->cfg_nvme_io_channel) {
8560 if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) {
8561 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8562 "6084 Fast-path NVME %s array not allocated\n",
8563 (phba->sli4_hba.nvme_cq) ? "CQ" : "WQ");
8568 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) {
8569 rc = lpfc_create_wq_cq(phba,
8570 phba->sli4_hba.hba_eq[
8572 phba->sli4_hba.nvme_cq[qidx],
8573 phba->sli4_hba.nvme_wq[qidx],
8574 &phba->sli4_hba.nvme_cq_map[qidx],
8577 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8578 "6123 Failed to setup fastpath "
8579 "NVME WQ/CQ (%d), rc = 0x%x\n",
8580 qidx, (uint32_t)rc);
8586 if (phba->cfg_fcp_io_channel) {
8587 /* Set up fast-path FCP Response Complete Queue */
8588 if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) {
8589 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8590 "3148 Fast-path FCP %s array not allocated\n",
8591 phba->sli4_hba.fcp_cq ? "WQ" : "CQ");
8596 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) {
8597 rc = lpfc_create_wq_cq(phba,
8598 phba->sli4_hba.hba_eq[
8600 phba->sli4_hba.fcp_cq[qidx],
8601 phba->sli4_hba.fcp_wq[qidx],
8602 &phba->sli4_hba.fcp_cq_map[qidx],
8605 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8606 "0535 Failed to setup fastpath "
8607 "FCP WQ/CQ (%d), rc = 0x%x\n",
8608 qidx, (uint32_t)rc);
8615 * Set up Slow Path Complete Queues (CQs)
8618 /* Set up slow-path MBOX CQ/MQ */
8620 if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
8621 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8622 "0528 %s not allocated\n",
8623 phba->sli4_hba.mbx_cq ?
8624 "Mailbox WQ" : "Mailbox CQ");
8629 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8630 phba->sli4_hba.mbx_cq,
8631 phba->sli4_hba.mbx_wq,
8632 NULL, 0, LPFC_MBOX);
8634 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8635 "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
8639 if (phba->nvmet_support) {
8640 if (!phba->sli4_hba.nvmet_cqset) {
8641 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8642 "3165 Fast-path NVME CQ Set "
8643 "array not allocated\n");
8647 if (phba->cfg_nvmet_mrq > 1) {
8648 rc = lpfc_cq_create_set(phba,
8649 phba->sli4_hba.nvmet_cqset,
8650 phba->sli4_hba.hba_eq,
8651 LPFC_WCQ, LPFC_NVMET);
8653 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8654 "3164 Failed setup of NVME CQ "
8660 /* Set up NVMET Receive Complete Queue */
8661 rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
8662 phba->sli4_hba.hba_eq[0],
8663 LPFC_WCQ, LPFC_NVMET);
8665 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8666 "6089 Failed setup NVMET CQ: "
8667 "rc = 0x%x\n", (uint32_t)rc);
8670 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8671 "6090 NVMET CQ setup: cq-id=%d, "
8672 "parent eq-id=%d\n",
8673 phba->sli4_hba.nvmet_cqset[0]->queue_id,
8674 phba->sli4_hba.hba_eq[0]->queue_id);
8678 /* Set up slow-path ELS WQ/CQ */
8679 if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
8680 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8681 "0530 ELS %s not allocated\n",
8682 phba->sli4_hba.els_cq ? "WQ" : "CQ");
8686 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8687 phba->sli4_hba.els_cq,
8688 phba->sli4_hba.els_wq,
8691 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8692 "0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
8696 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8697 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
8698 phba->sli4_hba.els_wq->queue_id,
8699 phba->sli4_hba.els_cq->queue_id);
8701 if (phba->cfg_nvme_io_channel) {
8702 /* Set up NVME LS Complete Queue */
8703 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
8704 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8705 "6091 LS %s not allocated\n",
8706 phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
8710 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8711 phba->sli4_hba.nvmels_cq,
8712 phba->sli4_hba.nvmels_wq,
8713 NULL, 0, LPFC_NVME_LS);
8715 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8716 "0529 Failed setup of NVVME LS WQ/CQ: "
8717 "rc = 0x%x\n", (uint32_t)rc);
8721 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8722 "6096 ELS WQ setup: wq-id=%d, "
8723 "parent cq-id=%d\n",
8724 phba->sli4_hba.nvmels_wq->queue_id,
8725 phba->sli4_hba.nvmels_cq->queue_id);
8729 * Create NVMET Receive Queue (RQ)
8731 if (phba->nvmet_support) {
8732 if ((!phba->sli4_hba.nvmet_cqset) ||
8733 (!phba->sli4_hba.nvmet_mrq_hdr) ||
8734 (!phba->sli4_hba.nvmet_mrq_data)) {
8735 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8736 "6130 MRQ CQ Queues not "
8741 if (phba->cfg_nvmet_mrq > 1) {
8742 rc = lpfc_mrq_create(phba,
8743 phba->sli4_hba.nvmet_mrq_hdr,
8744 phba->sli4_hba.nvmet_mrq_data,
8745 phba->sli4_hba.nvmet_cqset,
8748 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8749 "6098 Failed setup of NVMET "
8756 rc = lpfc_rq_create(phba,
8757 phba->sli4_hba.nvmet_mrq_hdr[0],
8758 phba->sli4_hba.nvmet_mrq_data[0],
8759 phba->sli4_hba.nvmet_cqset[0],
8762 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8763 "6057 Failed setup of NVMET "
8764 "Receive Queue: rc = 0x%x\n",
8770 phba, KERN_INFO, LOG_INIT,
8771 "6099 NVMET RQ setup: hdr-rq-id=%d, "
8772 "dat-rq-id=%d parent cq-id=%d\n",
8773 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
8774 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
8775 phba->sli4_hba.nvmet_cqset[0]->queue_id);
8780 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
8781 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8782 "0540 Receive Queue not allocated\n");
8787 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
8788 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
8790 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
8791 phba->sli4_hba.els_cq, LPFC_USOL);
8793 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8794 "0541 Failed setup of Receive Queue: "
8795 "rc = 0x%x\n", (uint32_t)rc);
8799 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8800 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
8801 "parent cq-id=%d\n",
8802 phba->sli4_hba.hdr_rq->queue_id,
8803 phba->sli4_hba.dat_rq->queue_id,
8804 phba->sli4_hba.els_cq->queue_id);
8806 if (phba->cfg_fof) {
8807 rc = lpfc_fof_queue_setup(phba);
8809 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8810 "0549 Failed setup of FOF Queues: "
8816 for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
8817 lpfc_modify_hba_eq_delay(phba, qidx);
8822 lpfc_sli4_queue_unset(phba);
8828 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
8829 * @phba: pointer to lpfc hba data structure.
8831 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
8836 * -ENOMEM - No available memory
8837 * -EIO - The mailbox failed to complete successfully.
8840 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
8844 /* Unset the queues created for Flash Optimized Fabric operations */
8846 lpfc_fof_queue_destroy(phba);
8848 /* Unset mailbox command work queue */
8849 if (phba->sli4_hba.mbx_wq)
8850 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
8852 /* Unset NVME LS work queue */
8853 if (phba->sli4_hba.nvmels_wq)
8854 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
8856 /* Unset ELS work queue */
8857 if (phba->sli4_hba.els_wq)
8858 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
8860 /* Unset unsolicited receive queue */
8861 if (phba->sli4_hba.hdr_rq)
8862 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
8863 phba->sli4_hba.dat_rq);
8865 /* Unset FCP work queue */
8866 if (phba->sli4_hba.fcp_wq)
8867 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
8868 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]);
8870 /* Unset NVME work queue */
8871 if (phba->sli4_hba.nvme_wq) {
8872 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
8873 lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]);
8876 /* Unset mailbox command complete queue */
8877 if (phba->sli4_hba.mbx_cq)
8878 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
8880 /* Unset ELS complete queue */
8881 if (phba->sli4_hba.els_cq)
8882 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
8884 /* Unset NVME LS complete queue */
8885 if (phba->sli4_hba.nvmels_cq)
8886 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
8888 /* Unset NVME response complete queue */
8889 if (phba->sli4_hba.nvme_cq)
8890 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
8891 lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]);
8893 /* Unset NVMET MRQ queue */
8894 if (phba->sli4_hba.nvmet_mrq_hdr) {
8895 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
8896 lpfc_rq_destroy(phba,
8897 phba->sli4_hba.nvmet_mrq_hdr[qidx],
8898 phba->sli4_hba.nvmet_mrq_data[qidx]);
8901 /* Unset NVMET CQ Set complete queue */
8902 if (phba->sli4_hba.nvmet_cqset) {
8903 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
8904 lpfc_cq_destroy(phba,
8905 phba->sli4_hba.nvmet_cqset[qidx]);
8908 /* Unset FCP response complete queue */
8909 if (phba->sli4_hba.fcp_cq)
8910 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
8911 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]);
8913 /* Unset fast-path event queue */
8914 if (phba->sli4_hba.hba_eq)
8915 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++)
8916 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]);
8920 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
8921 * @phba: pointer to lpfc hba data structure.
8923 * This routine is invoked to allocate and set up a pool of completion queue
8924 * events. The body of the completion queue event is a completion queue entry
8925 * CQE. For now, this pool is used for the interrupt service routine to queue
8926 * the following HBA completion queue events for the worker thread to process:
8927 * - Mailbox asynchronous events
8928 * - Receive queue completion unsolicited events
8929 * Later, this can be used for all the slow-path events.
8933 * -ENOMEM - No available memory
8936 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
8938 struct lpfc_cq_event *cq_event;
8941 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
8942 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
8944 goto out_pool_create_fail;
8945 list_add_tail(&cq_event->list,
8946 &phba->sli4_hba.sp_cqe_event_pool);
8950 out_pool_create_fail:
8951 lpfc_sli4_cq_event_pool_destroy(phba);
8956 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
8957 * @phba: pointer to lpfc hba data structure.
8959 * This routine is invoked to free the pool of completion queue events at
8960 * driver unload time. Note that, it is the responsibility of the driver
8961 * cleanup routine to free all the outstanding completion-queue events
8962 * allocated from this pool back into the pool before invoking this routine
8963 * to destroy the pool.
8966 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
8968 struct lpfc_cq_event *cq_event, *next_cq_event;
8970 list_for_each_entry_safe(cq_event, next_cq_event,
8971 &phba->sli4_hba.sp_cqe_event_pool, list) {
8972 list_del(&cq_event->list);
8978 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
8979 * @phba: pointer to lpfc hba data structure.
8981 * This routine is the lock free version of the API invoked to allocate a
8982 * completion-queue event from the free pool.
8984 * Return: Pointer to the newly allocated completion-queue event if successful
8987 struct lpfc_cq_event *
8988 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
8990 struct lpfc_cq_event *cq_event = NULL;
8992 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
8993 struct lpfc_cq_event, list);
8998 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
8999 * @phba: pointer to lpfc hba data structure.
9001 * This routine is the lock version of the API invoked to allocate a
9002 * completion-queue event from the free pool.
9004 * Return: Pointer to the newly allocated completion-queue event if successful
9007 struct lpfc_cq_event *
9008 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9010 struct lpfc_cq_event *cq_event;
9011 unsigned long iflags;
9013 spin_lock_irqsave(&phba->hbalock, iflags);
9014 cq_event = __lpfc_sli4_cq_event_alloc(phba);
9015 spin_unlock_irqrestore(&phba->hbalock, iflags);
9020 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9021 * @phba: pointer to lpfc hba data structure.
9022 * @cq_event: pointer to the completion queue event to be freed.
9024 * This routine is the lock free version of the API invoked to release a
9025 * completion-queue event back into the free pool.
9028 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9029 struct lpfc_cq_event *cq_event)
9031 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
9035 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9036 * @phba: pointer to lpfc hba data structure.
9037 * @cq_event: pointer to the completion queue event to be freed.
9039 * This routine is the lock version of the API invoked to release a
9040 * completion-queue event back into the free pool.
9043 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9044 struct lpfc_cq_event *cq_event)
9046 unsigned long iflags;
9047 spin_lock_irqsave(&phba->hbalock, iflags);
9048 __lpfc_sli4_cq_event_release(phba, cq_event);
9049 spin_unlock_irqrestore(&phba->hbalock, iflags);
9053 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
9054 * @phba: pointer to lpfc hba data structure.
9056 * This routine is to free all the pending completion-queue events to the
9057 * back into the free pool for device reset.
9060 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
9063 struct lpfc_cq_event *cqe;
9064 unsigned long iflags;
9066 /* Retrieve all the pending WCQEs from pending WCQE lists */
9067 spin_lock_irqsave(&phba->hbalock, iflags);
9068 /* Pending FCP XRI abort events */
9069 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
9071 /* Pending ELS XRI abort events */
9072 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
9074 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9075 /* Pending NVME XRI abort events */
9076 list_splice_init(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue,
9079 /* Pending asynnc events */
9080 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
9082 spin_unlock_irqrestore(&phba->hbalock, iflags);
9084 while (!list_empty(&cqelist)) {
9085 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
9086 lpfc_sli4_cq_event_release(phba, cqe);
9091 * lpfc_pci_function_reset - Reset pci function.
9092 * @phba: pointer to lpfc hba data structure.
9094 * This routine is invoked to request a PCI function reset. It will destroys
9095 * all resources assigned to the PCI function which originates this request.
9099 * -ENOMEM - No available memory
9100 * -EIO - The mailbox failed to complete successfully.
9103 lpfc_pci_function_reset(struct lpfc_hba *phba)
9105 LPFC_MBOXQ_t *mboxq;
9106 uint32_t rc = 0, if_type;
9107 uint32_t shdr_status, shdr_add_status;
9109 uint32_t port_reset = 0;
9110 union lpfc_sli4_cfg_shdr *shdr;
9111 struct lpfc_register reg_data;
9114 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9116 case LPFC_SLI_INTF_IF_TYPE_0:
9117 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
9120 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9121 "0494 Unable to allocate memory for "
9122 "issuing SLI_FUNCTION_RESET mailbox "
9127 /* Setup PCI function reset mailbox-ioctl command */
9128 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9129 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
9130 LPFC_SLI4_MBX_EMBED);
9131 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9132 shdr = (union lpfc_sli4_cfg_shdr *)
9133 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9134 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9135 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
9137 if (rc != MBX_TIMEOUT)
9138 mempool_free(mboxq, phba->mbox_mem_pool);
9139 if (shdr_status || shdr_add_status || rc) {
9140 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9141 "0495 SLI_FUNCTION_RESET mailbox "
9142 "failed with status x%x add_status x%x,"
9143 " mbx status x%x\n",
9144 shdr_status, shdr_add_status, rc);
9148 case LPFC_SLI_INTF_IF_TYPE_2:
9151 * Poll the Port Status Register and wait for RDY for
9152 * up to 30 seconds. If the port doesn't respond, treat
9155 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
9156 if (lpfc_readl(phba->sli4_hba.u.if_type2.
9157 STATUSregaddr, ®_data.word0)) {
9161 if (bf_get(lpfc_sliport_status_rdy, ®_data))
9166 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) {
9167 phba->work_status[0] = readl(
9168 phba->sli4_hba.u.if_type2.ERR1regaddr);
9169 phba->work_status[1] = readl(
9170 phba->sli4_hba.u.if_type2.ERR2regaddr);
9171 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9172 "2890 Port not ready, port status reg "
9173 "0x%x error 1=0x%x, error 2=0x%x\n",
9175 phba->work_status[0],
9176 phba->work_status[1]);
9183 * Reset the port now
9186 bf_set(lpfc_sliport_ctrl_end, ®_data,
9187 LPFC_SLIPORT_LITTLE_ENDIAN);
9188 bf_set(lpfc_sliport_ctrl_ip, ®_data,
9189 LPFC_SLIPORT_INIT_PORT);
9190 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
9193 pci_read_config_word(phba->pcidev,
9194 PCI_DEVICE_ID, &devid);
9199 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) {
9205 case LPFC_SLI_INTF_IF_TYPE_1:
9211 /* Catch the not-ready port failure after a port reset. */
9213 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9214 "3317 HBA not functional: IP Reset Failed "
9215 "try: echo fw_reset > board_mode\n");
9223 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
9224 * @phba: pointer to lpfc hba data structure.
9226 * This routine is invoked to set up the PCI device memory space for device
9227 * with SLI-4 interface spec.
9231 * other values - error
9234 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
9236 struct pci_dev *pdev;
9237 unsigned long bar0map_len, bar1map_len, bar2map_len;
9238 int error = -ENODEV;
9241 /* Obtain PCI device reference */
9245 pdev = phba->pcidev;
9247 /* Set the device DMA mask size */
9248 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
9249 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
9250 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
9251 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
9257 * The BARs and register set definitions and offset locations are
9258 * dependent on the if_type.
9260 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
9261 &phba->sli4_hba.sli_intf.word0)) {
9265 /* There is no SLI3 failback for SLI4 devices. */
9266 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
9267 LPFC_SLI_INTF_VALID) {
9268 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9269 "2894 SLI_INTF reg contents invalid "
9270 "sli_intf reg 0x%x\n",
9271 phba->sli4_hba.sli_intf.word0);
9275 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9277 * Get the bus address of SLI4 device Bar regions and the
9278 * number of bytes required by each mapping. The mapping of the
9279 * particular PCI BARs regions is dependent on the type of
9282 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
9283 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
9284 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
9287 * Map SLI4 PCI Config Space Register base to a kernel virtual
9290 phba->sli4_hba.conf_regs_memmap_p =
9291 ioremap(phba->pci_bar0_map, bar0map_len);
9292 if (!phba->sli4_hba.conf_regs_memmap_p) {
9293 dev_printk(KERN_ERR, &pdev->dev,
9294 "ioremap failed for SLI4 PCI config "
9298 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
9299 /* Set up BAR0 PCI config space register memory map */
9300 lpfc_sli4_bar0_register_memmap(phba, if_type);
9302 phba->pci_bar0_map = pci_resource_start(pdev, 1);
9303 bar0map_len = pci_resource_len(pdev, 1);
9304 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
9305 dev_printk(KERN_ERR, &pdev->dev,
9306 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
9309 phba->sli4_hba.conf_regs_memmap_p =
9310 ioremap(phba->pci_bar0_map, bar0map_len);
9311 if (!phba->sli4_hba.conf_regs_memmap_p) {
9312 dev_printk(KERN_ERR, &pdev->dev,
9313 "ioremap failed for SLI4 PCI config "
9317 lpfc_sli4_bar0_register_memmap(phba, if_type);
9320 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
9321 (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
9323 * Map SLI4 if type 0 HBA Control Register base to a kernel
9324 * virtual address and setup the registers.
9326 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
9327 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
9328 phba->sli4_hba.ctrl_regs_memmap_p =
9329 ioremap(phba->pci_bar1_map, bar1map_len);
9330 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
9331 dev_printk(KERN_ERR, &pdev->dev,
9332 "ioremap failed for SLI4 HBA control registers.\n");
9333 goto out_iounmap_conf;
9335 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
9336 lpfc_sli4_bar1_register_memmap(phba);
9339 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
9340 (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
9342 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
9343 * virtual address and setup the registers.
9345 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
9346 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
9347 phba->sli4_hba.drbl_regs_memmap_p =
9348 ioremap(phba->pci_bar2_map, bar2map_len);
9349 if (!phba->sli4_hba.drbl_regs_memmap_p) {
9350 dev_printk(KERN_ERR, &pdev->dev,
9351 "ioremap failed for SLI4 HBA doorbell registers.\n");
9352 goto out_iounmap_ctrl;
9354 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
9355 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
9357 goto out_iounmap_all;
9363 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9365 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9367 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9373 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
9374 * @phba: pointer to lpfc hba data structure.
9376 * This routine is invoked to unset the PCI device memory space for device
9377 * with SLI-4 interface spec.
9380 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
9383 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9386 case LPFC_SLI_INTF_IF_TYPE_0:
9387 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9388 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9389 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9391 case LPFC_SLI_INTF_IF_TYPE_2:
9392 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9394 case LPFC_SLI_INTF_IF_TYPE_1:
9396 dev_printk(KERN_ERR, &phba->pcidev->dev,
9397 "FATAL - unsupported SLI4 interface type - %d\n",
9404 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
9405 * @phba: pointer to lpfc hba data structure.
9407 * This routine is invoked to enable the MSI-X interrupt vectors to device
9408 * with SLI-3 interface specs.
9412 * other values - error
9415 lpfc_sli_enable_msix(struct lpfc_hba *phba)
9420 /* Set up MSI-X multi-message vectors */
9421 rc = pci_alloc_irq_vectors(phba->pcidev,
9422 LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
9424 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9425 "0420 PCI enable MSI-X failed (%d)\n", rc);
9430 * Assign MSI-X vectors to interrupt handlers
9433 /* vector-0 is associated to slow-path handler */
9434 rc = request_irq(pci_irq_vector(phba->pcidev, 0),
9435 &lpfc_sli_sp_intr_handler, 0,
9436 LPFC_SP_DRIVER_HANDLER_NAME, phba);
9438 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9439 "0421 MSI-X slow-path request_irq failed "
9444 /* vector-1 is associated to fast-path handler */
9445 rc = request_irq(pci_irq_vector(phba->pcidev, 1),
9446 &lpfc_sli_fp_intr_handler, 0,
9447 LPFC_FP_DRIVER_HANDLER_NAME, phba);
9450 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9451 "0429 MSI-X fast-path request_irq failed "
9457 * Configure HBA MSI-X attention conditions to messages
9459 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9463 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9464 "0474 Unable to allocate memory for issuing "
9465 "MBOX_CONFIG_MSI command\n");
9468 rc = lpfc_config_msi(phba, pmb);
9471 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9472 if (rc != MBX_SUCCESS) {
9473 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
9474 "0351 Config MSI mailbox command failed, "
9475 "mbxCmd x%x, mbxStatus x%x\n",
9476 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
9480 /* Free memory allocated for mailbox command */
9481 mempool_free(pmb, phba->mbox_mem_pool);
9485 /* Free memory allocated for mailbox command */
9486 mempool_free(pmb, phba->mbox_mem_pool);
9489 /* free the irq already requested */
9490 free_irq(pci_irq_vector(phba->pcidev, 1), phba);
9493 /* free the irq already requested */
9494 free_irq(pci_irq_vector(phba->pcidev, 0), phba);
9497 /* Unconfigure MSI-X capability structure */
9498 pci_free_irq_vectors(phba->pcidev);
9505 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
9506 * @phba: pointer to lpfc hba data structure.
9508 * This routine is invoked to enable the MSI interrupt mode to device with
9509 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
9510 * enable the MSI vector. The device driver is responsible for calling the
9511 * request_irq() to register MSI vector with a interrupt the handler, which
9512 * is done in this function.
9516 * other values - error
9519 lpfc_sli_enable_msi(struct lpfc_hba *phba)
9523 rc = pci_enable_msi(phba->pcidev);
9525 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9526 "0462 PCI enable MSI mode success.\n");
9528 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9529 "0471 PCI enable MSI mode failed (%d)\n", rc);
9533 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
9534 0, LPFC_DRIVER_NAME, phba);
9536 pci_disable_msi(phba->pcidev);
9537 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9538 "0478 MSI request_irq failed (%d)\n", rc);
9544 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
9545 * @phba: pointer to lpfc hba data structure.
9547 * This routine is invoked to enable device interrupt and associate driver's
9548 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
9549 * spec. Depends on the interrupt mode configured to the driver, the driver
9550 * will try to fallback from the configured interrupt mode to an interrupt
9551 * mode which is supported by the platform, kernel, and device in the order
9553 * MSI-X -> MSI -> IRQ.
9557 * other values - error
9560 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9562 uint32_t intr_mode = LPFC_INTR_ERROR;
9565 if (cfg_mode == 2) {
9566 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
9567 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
9569 /* Now, try to enable MSI-X interrupt mode */
9570 retval = lpfc_sli_enable_msix(phba);
9572 /* Indicate initialization to MSI-X mode */
9573 phba->intr_type = MSIX;
9579 /* Fallback to MSI if MSI-X initialization failed */
9580 if (cfg_mode >= 1 && phba->intr_type == NONE) {
9581 retval = lpfc_sli_enable_msi(phba);
9583 /* Indicate initialization to MSI mode */
9584 phba->intr_type = MSI;
9589 /* Fallback to INTx if both MSI-X/MSI initalization failed */
9590 if (phba->intr_type == NONE) {
9591 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
9592 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9594 /* Indicate initialization to INTx mode */
9595 phba->intr_type = INTx;
9603 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
9604 * @phba: pointer to lpfc hba data structure.
9606 * This routine is invoked to disable device interrupt and disassociate the
9607 * driver's interrupt handler(s) from interrupt vector(s) to device with
9608 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
9609 * release the interrupt vector(s) for the message signaled interrupt.
9612 lpfc_sli_disable_intr(struct lpfc_hba *phba)
9616 if (phba->intr_type == MSIX)
9617 nr_irqs = LPFC_MSIX_VECTORS;
9621 for (i = 0; i < nr_irqs; i++)
9622 free_irq(pci_irq_vector(phba->pcidev, i), phba);
9623 pci_free_irq_vectors(phba->pcidev);
9625 /* Reset interrupt management states */
9626 phba->intr_type = NONE;
9627 phba->sli.slistat.sli_intr = 0;
9631 * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
9632 * @phba: pointer to lpfc hba data structure.
9633 * @vectors: number of msix vectors allocated.
9635 * The routine will figure out the CPU affinity assignment for every
9636 * MSI-X vector allocated for the HBA. The hba_eq_hdl will be updated
9637 * with a pointer to the CPU mask that defines ALL the CPUs this vector
9638 * can be associated with. If the vector can be unquely associated with
9639 * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu.
9640 * In addition, the CPU to IO channel mapping will be calculated
9641 * and the phba->sli4_hba.cpu_map array will reflect this.
9644 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
9646 struct lpfc_vector_map_info *cpup;
9651 struct cpuinfo_x86 *cpuinfo;
9654 /* Init cpu_map array */
9655 memset(phba->sli4_hba.cpu_map, 0xff,
9656 (sizeof(struct lpfc_vector_map_info) *
9657 phba->sli4_hba.num_present_cpu));
9659 /* Update CPU map with physical id and core id of each CPU */
9660 cpup = phba->sli4_hba.cpu_map;
9661 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
9663 cpuinfo = &cpu_data(cpu);
9664 cpup->phys_id = cpuinfo->phys_proc_id;
9665 cpup->core_id = cpuinfo->cpu_core_id;
9667 /* No distinction between CPUs for other platforms */
9671 cpup->channel_id = index; /* For now round robin */
9672 cpup->irq = pci_irq_vector(phba->pcidev, vec);
9677 if (index >= phba->cfg_fcp_io_channel)
9685 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
9686 * @phba: pointer to lpfc hba data structure.
9688 * This routine is invoked to enable the MSI-X interrupt vectors to device
9689 * with SLI-4 interface spec.
9693 * other values - error
9696 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
9698 int vectors, rc, index;
9700 /* Set up MSI-X multi-message vectors */
9701 vectors = phba->io_channel_irqs;
9705 rc = pci_alloc_irq_vectors(phba->pcidev,
9706 (phba->nvmet_support) ? 1 : 2,
9707 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
9709 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9710 "0484 PCI enable MSI-X failed (%d)\n", rc);
9715 /* Assign MSI-X vectors to interrupt handlers */
9716 for (index = 0; index < vectors; index++) {
9717 memset(&phba->sli4_hba.handler_name[index], 0, 16);
9718 snprintf((char *)&phba->sli4_hba.handler_name[index],
9719 LPFC_SLI4_HANDLER_NAME_SZ,
9720 LPFC_DRIVER_HANDLER_NAME"%d", index);
9722 phba->sli4_hba.hba_eq_hdl[index].idx = index;
9723 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
9724 atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1);
9725 if (phba->cfg_fof && (index == (vectors - 1)))
9726 rc = request_irq(pci_irq_vector(phba->pcidev, index),
9727 &lpfc_sli4_fof_intr_handler, 0,
9728 (char *)&phba->sli4_hba.handler_name[index],
9729 &phba->sli4_hba.hba_eq_hdl[index]);
9731 rc = request_irq(pci_irq_vector(phba->pcidev, index),
9732 &lpfc_sli4_hba_intr_handler, 0,
9733 (char *)&phba->sli4_hba.handler_name[index],
9734 &phba->sli4_hba.hba_eq_hdl[index]);
9736 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9737 "0486 MSI-X fast-path (%d) "
9738 "request_irq failed (%d)\n", index, rc);
9746 if (vectors != phba->io_channel_irqs) {
9747 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9748 "3238 Reducing IO channels to match number of "
9749 "MSI-X vectors, requested %d got %d\n",
9750 phba->io_channel_irqs, vectors);
9751 if (phba->cfg_fcp_io_channel > vectors)
9752 phba->cfg_fcp_io_channel = vectors;
9753 if (phba->cfg_nvme_io_channel > vectors)
9754 phba->cfg_nvme_io_channel = vectors;
9755 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel)
9756 phba->io_channel_irqs = phba->cfg_fcp_io_channel;
9758 phba->io_channel_irqs = phba->cfg_nvme_io_channel;
9760 lpfc_cpu_affinity_check(phba, vectors);
9765 /* free the irq already requested */
9766 for (--index; index >= 0; index--)
9767 free_irq(pci_irq_vector(phba->pcidev, index),
9768 &phba->sli4_hba.hba_eq_hdl[index]);
9770 /* Unconfigure MSI-X capability structure */
9771 pci_free_irq_vectors(phba->pcidev);
9778 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
9779 * @phba: pointer to lpfc hba data structure.
9781 * This routine is invoked to enable the MSI interrupt mode to device with
9782 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
9783 * to enable the MSI vector. The device driver is responsible for calling
9784 * the request_irq() to register MSI vector with a interrupt the handler,
9785 * which is done in this function.
9789 * other values - error
9792 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
9796 rc = pci_enable_msi(phba->pcidev);
9798 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9799 "0487 PCI enable MSI mode success.\n");
9801 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9802 "0488 PCI enable MSI mode failed (%d)\n", rc);
9806 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9807 0, LPFC_DRIVER_NAME, phba);
9809 pci_disable_msi(phba->pcidev);
9810 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9811 "0490 MSI request_irq failed (%d)\n", rc);
9815 for (index = 0; index < phba->io_channel_irqs; index++) {
9816 phba->sli4_hba.hba_eq_hdl[index].idx = index;
9817 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
9820 if (phba->cfg_fof) {
9821 phba->sli4_hba.hba_eq_hdl[index].idx = index;
9822 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
9828 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
9829 * @phba: pointer to lpfc hba data structure.
9831 * This routine is invoked to enable device interrupt and associate driver's
9832 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
9833 * interface spec. Depends on the interrupt mode configured to the driver,
9834 * the driver will try to fallback from the configured interrupt mode to an
9835 * interrupt mode which is supported by the platform, kernel, and device in
9837 * MSI-X -> MSI -> IRQ.
9841 * other values - error
9844 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9846 uint32_t intr_mode = LPFC_INTR_ERROR;
9849 if (cfg_mode == 2) {
9850 /* Preparation before conf_msi mbox cmd */
9853 /* Now, try to enable MSI-X interrupt mode */
9854 retval = lpfc_sli4_enable_msix(phba);
9856 /* Indicate initialization to MSI-X mode */
9857 phba->intr_type = MSIX;
9863 /* Fallback to MSI if MSI-X initialization failed */
9864 if (cfg_mode >= 1 && phba->intr_type == NONE) {
9865 retval = lpfc_sli4_enable_msi(phba);
9867 /* Indicate initialization to MSI mode */
9868 phba->intr_type = MSI;
9873 /* Fallback to INTx if both MSI-X/MSI initalization failed */
9874 if (phba->intr_type == NONE) {
9875 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9876 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9878 struct lpfc_hba_eq_hdl *eqhdl;
9880 /* Indicate initialization to INTx mode */
9881 phba->intr_type = INTx;
9884 for (idx = 0; idx < phba->io_channel_irqs; idx++) {
9885 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
9888 atomic_set(&eqhdl->hba_eq_in_use, 1);
9890 if (phba->cfg_fof) {
9891 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
9894 atomic_set(&eqhdl->hba_eq_in_use, 1);
9902 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
9903 * @phba: pointer to lpfc hba data structure.
9905 * This routine is invoked to disable device interrupt and disassociate
9906 * the driver's interrupt handler(s) from interrupt vector(s) to device
9907 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
9908 * will release the interrupt vector(s) for the message signaled interrupt.
9911 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
9913 /* Disable the currently initialized interrupt mode */
9914 if (phba->intr_type == MSIX) {
9917 /* Free up MSI-X multi-message vectors */
9918 for (index = 0; index < phba->io_channel_irqs; index++)
9919 free_irq(pci_irq_vector(phba->pcidev, index),
9920 &phba->sli4_hba.hba_eq_hdl[index]);
9923 free_irq(pci_irq_vector(phba->pcidev, index),
9924 &phba->sli4_hba.hba_eq_hdl[index]);
9926 free_irq(phba->pcidev->irq, phba);
9929 pci_free_irq_vectors(phba->pcidev);
9931 /* Reset interrupt management states */
9932 phba->intr_type = NONE;
9933 phba->sli.slistat.sli_intr = 0;
9937 * lpfc_unset_hba - Unset SLI3 hba device initialization
9938 * @phba: pointer to lpfc hba data structure.
9940 * This routine is invoked to unset the HBA device initialization steps to
9941 * a device with SLI-3 interface spec.
9944 lpfc_unset_hba(struct lpfc_hba *phba)
9946 struct lpfc_vport *vport = phba->pport;
9947 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
9949 spin_lock_irq(shost->host_lock);
9950 vport->load_flag |= FC_UNLOADING;
9951 spin_unlock_irq(shost->host_lock);
9953 kfree(phba->vpi_bmask);
9954 kfree(phba->vpi_ids);
9956 lpfc_stop_hba_timers(phba);
9958 phba->pport->work_port_events = 0;
9960 lpfc_sli_hba_down(phba);
9962 lpfc_sli_brdrestart(phba);
9964 lpfc_sli_disable_intr(phba);
9970 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
9971 * @phba: Pointer to HBA context object.
9973 * This function is called in the SLI4 code path to wait for completion
9974 * of device's XRIs exchange busy. It will check the XRI exchange busy
9975 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
9976 * that, it will check the XRI exchange busy on outstanding FCP and ELS
9977 * I/Os every 30 seconds, log error message, and wait forever. Only when
9978 * all XRI exchange busy complete, the driver unload shall proceed with
9979 * invoking the function reset ioctl mailbox command to the CNA and the
9980 * the rest of the driver unload resource release.
9983 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
9986 int nvme_xri_cmpl = 1;
9987 int nvmet_xri_cmpl = 1;
9988 int fcp_xri_cmpl = 1;
9989 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9991 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
9993 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9994 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9996 list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
9998 list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10001 while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl ||
10003 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
10004 if (!nvme_xri_cmpl)
10005 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10006 "6100 NVME XRI exchange busy "
10007 "wait time: %d seconds.\n",
10010 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10011 "2877 FCP XRI exchange busy "
10012 "wait time: %d seconds.\n",
10015 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10016 "2878 ELS XRI exchange busy "
10017 "wait time: %d seconds.\n",
10019 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
10020 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
10022 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
10023 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
10025 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10026 nvme_xri_cmpl = list_empty(
10027 &phba->sli4_hba.lpfc_abts_nvme_buf_list);
10028 nvmet_xri_cmpl = list_empty(
10029 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10032 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
10033 fcp_xri_cmpl = list_empty(
10034 &phba->sli4_hba.lpfc_abts_scsi_buf_list);
10037 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10043 * lpfc_sli4_hba_unset - Unset the fcoe hba
10044 * @phba: Pointer to HBA context object.
10046 * This function is called in the SLI4 code path to reset the HBA's FCoE
10047 * function. The caller is not required to hold any lock. This routine
10048 * issues PCI function reset mailbox command to reset the FCoE function.
10049 * At the end of the function, it calls lpfc_hba_down_post function to
10050 * free any pending commands.
10053 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
10056 LPFC_MBOXQ_t *mboxq;
10057 struct pci_dev *pdev = phba->pcidev;
10059 lpfc_stop_hba_timers(phba);
10060 phba->sli4_hba.intr_enable = 0;
10063 * Gracefully wait out the potential current outstanding asynchronous
10067 /* First, block any pending async mailbox command from posted */
10068 spin_lock_irq(&phba->hbalock);
10069 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10070 spin_unlock_irq(&phba->hbalock);
10071 /* Now, trying to wait it out if we can */
10072 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10074 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
10077 /* Forcefully release the outstanding mailbox command if timed out */
10078 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10079 spin_lock_irq(&phba->hbalock);
10080 mboxq = phba->sli.mbox_active;
10081 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
10082 __lpfc_mbox_cmpl_put(phba, mboxq);
10083 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10084 phba->sli.mbox_active = NULL;
10085 spin_unlock_irq(&phba->hbalock);
10088 /* Abort all iocbs associated with the hba */
10089 lpfc_sli_hba_iocb_abort(phba);
10091 /* Wait for completion of device XRI exchange busy */
10092 lpfc_sli4_xri_exchange_busy_wait(phba);
10094 /* Disable PCI subsystem interrupt */
10095 lpfc_sli4_disable_intr(phba);
10097 /* Disable SR-IOV if enabled */
10098 if (phba->cfg_sriov_nr_virtfn)
10099 pci_disable_sriov(pdev);
10101 /* Stop kthread signal shall trigger work_done one more time */
10102 kthread_stop(phba->worker_thread);
10104 /* Unset the queues shared with the hardware then release all
10105 * allocated resources.
10107 lpfc_sli4_queue_unset(phba);
10108 lpfc_sli4_queue_destroy(phba);
10110 /* Reset SLI4 HBA FCoE function */
10111 lpfc_pci_function_reset(phba);
10113 /* Stop the SLI4 device port */
10114 phba->pport->work_port_events = 0;
10118 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
10119 * @phba: Pointer to HBA context object.
10120 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10122 * This function is called in the SLI4 code path to read the port's
10123 * sli4 capabilities.
10125 * This function may be be called from any context that can block-wait
10126 * for the completion. The expectation is that this routine is called
10127 * typically from probe_one or from the online routine.
10130 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10133 struct lpfc_mqe *mqe;
10134 struct lpfc_pc_sli4_params *sli4_params;
10138 mqe = &mboxq->u.mqe;
10140 /* Read the port's SLI4 Parameters port capabilities */
10141 lpfc_pc_sli4_params(mboxq);
10142 if (!phba->sli4_hba.intr_enable)
10143 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10145 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10146 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10152 sli4_params = &phba->sli4_hba.pc_sli4_params;
10153 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
10154 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
10155 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
10156 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
10157 &mqe->un.sli4_params);
10158 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
10159 &mqe->un.sli4_params);
10160 sli4_params->proto_types = mqe->un.sli4_params.word3;
10161 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
10162 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
10163 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
10164 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
10165 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
10166 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
10167 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
10168 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
10169 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
10170 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
10171 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
10172 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
10173 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
10174 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
10175 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
10176 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
10177 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
10178 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
10179 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
10180 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
10182 /* Make sure that sge_supp_len can be handled by the driver */
10183 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10184 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10190 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
10191 * @phba: Pointer to HBA context object.
10192 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10194 * This function is called in the SLI4 code path to read the port's
10195 * sli4 capabilities.
10197 * This function may be be called from any context that can block-wait
10198 * for the completion. The expectation is that this routine is called
10199 * typically from probe_one or from the online routine.
10202 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10205 struct lpfc_mqe *mqe = &mboxq->u.mqe;
10206 struct lpfc_pc_sli4_params *sli4_params;
10209 struct lpfc_sli4_parameters *mbx_sli4_parameters;
10212 * By default, the driver assumes the SLI4 port requires RPI
10213 * header postings. The SLI4_PARAM response will correct this
10216 phba->sli4_hba.rpi_hdrs_in_use = 1;
10218 /* Read the port's SLI4 Config Parameters */
10219 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
10220 sizeof(struct lpfc_sli4_cfg_mhdr));
10221 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10222 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
10223 length, LPFC_SLI4_MBX_EMBED);
10224 if (!phba->sli4_hba.intr_enable)
10225 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10227 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10228 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10232 sli4_params = &phba->sli4_hba.pc_sli4_params;
10233 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
10234 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
10235 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
10236 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
10237 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
10238 mbx_sli4_parameters);
10239 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
10240 mbx_sli4_parameters);
10241 if (bf_get(cfg_phwq, mbx_sli4_parameters))
10242 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
10244 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
10245 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
10246 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
10247 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
10248 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
10249 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
10250 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
10251 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
10252 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
10253 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
10254 mbx_sli4_parameters);
10255 sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
10256 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
10257 mbx_sli4_parameters);
10258 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
10259 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
10260 phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
10261 bf_get(cfg_xib, mbx_sli4_parameters));
10263 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) ||
10264 !phba->nvme_support) {
10265 phba->nvme_support = 0;
10266 phba->nvmet_support = 0;
10267 phba->cfg_nvmet_mrq = 0;
10268 phba->cfg_nvme_io_channel = 0;
10269 phba->io_channel_irqs = phba->cfg_fcp_io_channel;
10270 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
10271 "6101 Disabling NVME support: "
10272 "Not supported by firmware: %d %d\n",
10273 bf_get(cfg_nvme, mbx_sli4_parameters),
10274 bf_get(cfg_xib, mbx_sli4_parameters));
10276 /* If firmware doesn't support NVME, just use SCSI support */
10277 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
10279 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
10282 if (bf_get(cfg_xib, mbx_sli4_parameters) && phba->cfg_suppress_rsp)
10283 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
10285 /* Make sure that sge_supp_len can be handled by the driver */
10286 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10287 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10290 * Issue IOs with CDB embedded in WQE to minimized the number
10291 * of DMAs the firmware has to do. Setting this to 1 also forces
10292 * the driver to use 128 bytes WQEs for FCP IOs.
10294 if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
10295 phba->fcp_embed_io = 1;
10297 phba->fcp_embed_io = 0;
10300 * Check if the SLI port supports MDS Diagnostics
10302 if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
10303 phba->mds_diags_support = 1;
10305 phba->mds_diags_support = 0;
10310 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
10311 * @pdev: pointer to PCI device
10312 * @pid: pointer to PCI device identifier
10314 * This routine is to be called to attach a device with SLI-3 interface spec
10315 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10316 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10317 * information of the device and driver to see if the driver state that it can
10318 * support this kind of device. If the match is successful, the driver core
10319 * invokes this routine. If this routine determines it can claim the HBA, it
10320 * does all the initialization that it needs to do to handle the HBA properly.
10323 * 0 - driver can claim the device
10324 * negative value - driver can not claim the device
10327 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
10329 struct lpfc_hba *phba;
10330 struct lpfc_vport *vport = NULL;
10331 struct Scsi_Host *shost = NULL;
10333 uint32_t cfg_mode, intr_mode;
10335 /* Allocate memory for HBA structure */
10336 phba = lpfc_hba_alloc(pdev);
10340 /* Perform generic PCI device enabling operation */
10341 error = lpfc_enable_pci_dev(phba);
10343 goto out_free_phba;
10345 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
10346 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
10348 goto out_disable_pci_dev;
10350 /* Set up SLI-3 specific device PCI memory space */
10351 error = lpfc_sli_pci_mem_setup(phba);
10353 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10354 "1402 Failed to set up pci memory space.\n");
10355 goto out_disable_pci_dev;
10358 /* Set up SLI-3 specific device driver resources */
10359 error = lpfc_sli_driver_resource_setup(phba);
10361 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10362 "1404 Failed to set up driver resource.\n");
10363 goto out_unset_pci_mem_s3;
10366 /* Initialize and populate the iocb list per host */
10368 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
10370 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10371 "1405 Failed to initialize iocb list.\n");
10372 goto out_unset_driver_resource_s3;
10375 /* Set up common device driver resources */
10376 error = lpfc_setup_driver_resource_phase2(phba);
10378 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10379 "1406 Failed to set up driver resource.\n");
10380 goto out_free_iocb_list;
10383 /* Get the default values for Model Name and Description */
10384 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10386 /* Create SCSI host to the physical port */
10387 error = lpfc_create_shost(phba);
10389 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10390 "1407 Failed to create scsi host.\n");
10391 goto out_unset_driver_resource;
10394 /* Configure sysfs attributes */
10395 vport = phba->pport;
10396 error = lpfc_alloc_sysfs_attr(vport);
10398 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10399 "1476 Failed to allocate sysfs attr\n");
10400 goto out_destroy_shost;
10403 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10404 /* Now, trying to enable interrupt and bring up the device */
10405 cfg_mode = phba->cfg_use_msi;
10407 /* Put device to a known state before enabling interrupt */
10408 lpfc_stop_port(phba);
10409 /* Configure and enable interrupt */
10410 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
10411 if (intr_mode == LPFC_INTR_ERROR) {
10412 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10413 "0431 Failed to enable interrupt.\n");
10415 goto out_free_sysfs_attr;
10417 /* SLI-3 HBA setup */
10418 if (lpfc_sli_hba_setup(phba)) {
10419 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10420 "1477 Failed to set up hba\n");
10422 goto out_remove_device;
10425 /* Wait 50ms for the interrupts of previous mailbox commands */
10427 /* Check active interrupts on message signaled interrupts */
10428 if (intr_mode == 0 ||
10429 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
10430 /* Log the current active interrupt mode */
10431 phba->intr_mode = intr_mode;
10432 lpfc_log_intr_mode(phba, intr_mode);
10435 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10436 "0447 Configure interrupt mode (%d) "
10437 "failed active interrupt test.\n",
10439 /* Disable the current interrupt mode */
10440 lpfc_sli_disable_intr(phba);
10441 /* Try next level of interrupt mode */
10442 cfg_mode = --intr_mode;
10446 /* Perform post initialization setup */
10447 lpfc_post_init_setup(phba);
10449 /* Check if there are static vports to be created. */
10450 lpfc_create_static_vport(phba);
10455 lpfc_unset_hba(phba);
10456 out_free_sysfs_attr:
10457 lpfc_free_sysfs_attr(vport);
10459 lpfc_destroy_shost(phba);
10460 out_unset_driver_resource:
10461 lpfc_unset_driver_resource_phase2(phba);
10462 out_free_iocb_list:
10463 lpfc_free_iocb_list(phba);
10464 out_unset_driver_resource_s3:
10465 lpfc_sli_driver_resource_unset(phba);
10466 out_unset_pci_mem_s3:
10467 lpfc_sli_pci_mem_unset(phba);
10468 out_disable_pci_dev:
10469 lpfc_disable_pci_dev(phba);
10471 scsi_host_put(shost);
10473 lpfc_hba_free(phba);
10478 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
10479 * @pdev: pointer to PCI device
10481 * This routine is to be called to disattach a device with SLI-3 interface
10482 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10483 * removed from PCI bus, it performs all the necessary cleanup for the HBA
10484 * device to be removed from the PCI subsystem properly.
10487 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
10489 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10490 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10491 struct lpfc_vport **vports;
10492 struct lpfc_hba *phba = vport->phba;
10495 spin_lock_irq(&phba->hbalock);
10496 vport->load_flag |= FC_UNLOADING;
10497 spin_unlock_irq(&phba->hbalock);
10499 lpfc_free_sysfs_attr(vport);
10501 /* Release all the vports against this physical port */
10502 vports = lpfc_create_vport_work_array(phba);
10503 if (vports != NULL)
10504 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10505 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10507 fc_vport_terminate(vports[i]->fc_vport);
10509 lpfc_destroy_vport_work_array(phba, vports);
10511 /* Remove FC host and then SCSI host with the physical port */
10512 fc_remove_host(shost);
10513 scsi_remove_host(shost);
10515 lpfc_cleanup(vport);
10518 * Bring down the SLI Layer. This step disable all interrupts,
10519 * clears the rings, discards all mailbox commands, and resets
10523 /* HBA interrupt will be disabled after this call */
10524 lpfc_sli_hba_down(phba);
10525 /* Stop kthread signal shall trigger work_done one more time */
10526 kthread_stop(phba->worker_thread);
10527 /* Final cleanup of txcmplq and reset the HBA */
10528 lpfc_sli_brdrestart(phba);
10530 kfree(phba->vpi_bmask);
10531 kfree(phba->vpi_ids);
10533 lpfc_stop_hba_timers(phba);
10534 spin_lock_irq(&phba->hbalock);
10535 list_del_init(&vport->listentry);
10536 spin_unlock_irq(&phba->hbalock);
10538 lpfc_debugfs_terminate(vport);
10540 /* Disable SR-IOV if enabled */
10541 if (phba->cfg_sriov_nr_virtfn)
10542 pci_disable_sriov(pdev);
10544 /* Disable interrupt */
10545 lpfc_sli_disable_intr(phba);
10547 scsi_host_put(shost);
10550 * Call scsi_free before mem_free since scsi bufs are released to their
10551 * corresponding pools here.
10553 lpfc_scsi_free(phba);
10554 lpfc_mem_free_all(phba);
10556 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
10557 phba->hbqslimp.virt, phba->hbqslimp.phys);
10559 /* Free resources associated with SLI2 interface */
10560 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
10561 phba->slim2p.virt, phba->slim2p.phys);
10563 /* unmap adapter SLIM and Control Registers */
10564 iounmap(phba->ctrl_regs_memmap_p);
10565 iounmap(phba->slim_memmap_p);
10567 lpfc_hba_free(phba);
10569 pci_release_mem_regions(pdev);
10570 pci_disable_device(pdev);
10574 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
10575 * @pdev: pointer to PCI device
10576 * @msg: power management message
10578 * This routine is to be called from the kernel's PCI subsystem to support
10579 * system Power Management (PM) to device with SLI-3 interface spec. When
10580 * PM invokes this method, it quiesces the device by stopping the driver's
10581 * worker thread for the device, turning off device's interrupt and DMA,
10582 * and bring the device offline. Note that as the driver implements the
10583 * minimum PM requirements to a power-aware driver's PM support for the
10584 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10585 * to the suspend() method call will be treated as SUSPEND and the driver will
10586 * fully reinitialize its device during resume() method call, the driver will
10587 * set device to PCI_D3hot state in PCI config space instead of setting it
10588 * according to the @msg provided by the PM.
10591 * 0 - driver suspended the device
10595 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
10597 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10598 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10600 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10601 "0473 PCI device Power Management suspend.\n");
10603 /* Bring down the device */
10604 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10605 lpfc_offline(phba);
10606 kthread_stop(phba->worker_thread);
10608 /* Disable interrupt from device */
10609 lpfc_sli_disable_intr(phba);
10611 /* Save device state to PCI config space */
10612 pci_save_state(pdev);
10613 pci_set_power_state(pdev, PCI_D3hot);
10619 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
10620 * @pdev: pointer to PCI device
10622 * This routine is to be called from the kernel's PCI subsystem to support
10623 * system Power Management (PM) to device with SLI-3 interface spec. When PM
10624 * invokes this method, it restores the device's PCI config space state and
10625 * fully reinitializes the device and brings it online. Note that as the
10626 * driver implements the minimum PM requirements to a power-aware driver's
10627 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
10628 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
10629 * driver will fully reinitialize its device during resume() method call,
10630 * the device will be set to PCI_D0 directly in PCI config space before
10631 * restoring the state.
10634 * 0 - driver suspended the device
10638 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
10640 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10641 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10642 uint32_t intr_mode;
10645 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10646 "0452 PCI device Power Management resume.\n");
10648 /* Restore device state from PCI config space */
10649 pci_set_power_state(pdev, PCI_D0);
10650 pci_restore_state(pdev);
10653 * As the new kernel behavior of pci_restore_state() API call clears
10654 * device saved_state flag, need to save the restored state again.
10656 pci_save_state(pdev);
10658 if (pdev->is_busmaster)
10659 pci_set_master(pdev);
10661 /* Startup the kernel thread for this host adapter. */
10662 phba->worker_thread = kthread_run(lpfc_do_work, phba,
10663 "lpfc_worker_%d", phba->brd_no);
10664 if (IS_ERR(phba->worker_thread)) {
10665 error = PTR_ERR(phba->worker_thread);
10666 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10667 "0434 PM resume failed to start worker "
10668 "thread: error=x%x.\n", error);
10672 /* Configure and enable interrupt */
10673 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10674 if (intr_mode == LPFC_INTR_ERROR) {
10675 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10676 "0430 PM resume Failed to enable interrupt\n");
10679 phba->intr_mode = intr_mode;
10681 /* Restart HBA and bring it online */
10682 lpfc_sli_brdrestart(phba);
10685 /* Log the current active interrupt mode */
10686 lpfc_log_intr_mode(phba, phba->intr_mode);
10692 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
10693 * @phba: pointer to lpfc hba data structure.
10695 * This routine is called to prepare the SLI3 device for PCI slot recover. It
10696 * aborts all the outstanding SCSI I/Os to the pci device.
10699 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
10701 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10702 "2723 PCI channel I/O abort preparing for recovery\n");
10705 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10706 * and let the SCSI mid-layer to retry them to recover.
10708 lpfc_sli_abort_fcp_rings(phba);
10712 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
10713 * @phba: pointer to lpfc hba data structure.
10715 * This routine is called to prepare the SLI3 device for PCI slot reset. It
10716 * disables the device interrupt and pci device, and aborts the internal FCP
10720 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
10722 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10723 "2710 PCI channel disable preparing for reset\n");
10725 /* Block any management I/Os to the device */
10726 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
10728 /* Block all SCSI devices' I/Os on the host */
10729 lpfc_scsi_dev_block(phba);
10731 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10732 lpfc_sli_flush_fcp_rings(phba);
10734 /* stop all timers */
10735 lpfc_stop_hba_timers(phba);
10737 /* Disable interrupt and pci device */
10738 lpfc_sli_disable_intr(phba);
10739 pci_disable_device(phba->pcidev);
10743 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
10744 * @phba: pointer to lpfc hba data structure.
10746 * This routine is called to prepare the SLI3 device for PCI slot permanently
10747 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10751 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10753 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10754 "2711 PCI channel permanent disable for failure\n");
10755 /* Block all SCSI devices' I/Os on the host */
10756 lpfc_scsi_dev_block(phba);
10758 /* stop all timers */
10759 lpfc_stop_hba_timers(phba);
10761 /* Clean up all driver's outstanding SCSI I/Os */
10762 lpfc_sli_flush_fcp_rings(phba);
10766 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
10767 * @pdev: pointer to PCI device.
10768 * @state: the current PCI connection state.
10770 * This routine is called from the PCI subsystem for I/O error handling to
10771 * device with SLI-3 interface spec. This function is called by the PCI
10772 * subsystem after a PCI bus error affecting this device has been detected.
10773 * When this function is invoked, it will need to stop all the I/Os and
10774 * interrupt(s) to the device. Once that is done, it will return
10775 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
10779 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
10780 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10781 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10783 static pci_ers_result_t
10784 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
10786 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10787 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10790 case pci_channel_io_normal:
10791 /* Non-fatal error, prepare for recovery */
10792 lpfc_sli_prep_dev_for_recover(phba);
10793 return PCI_ERS_RESULT_CAN_RECOVER;
10794 case pci_channel_io_frozen:
10795 /* Fatal error, prepare for slot reset */
10796 lpfc_sli_prep_dev_for_reset(phba);
10797 return PCI_ERS_RESULT_NEED_RESET;
10798 case pci_channel_io_perm_failure:
10799 /* Permanent failure, prepare for device down */
10800 lpfc_sli_prep_dev_for_perm_failure(phba);
10801 return PCI_ERS_RESULT_DISCONNECT;
10803 /* Unknown state, prepare and request slot reset */
10804 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10805 "0472 Unknown PCI error state: x%x\n", state);
10806 lpfc_sli_prep_dev_for_reset(phba);
10807 return PCI_ERS_RESULT_NEED_RESET;
10812 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
10813 * @pdev: pointer to PCI device.
10815 * This routine is called from the PCI subsystem for error handling to
10816 * device with SLI-3 interface spec. This is called after PCI bus has been
10817 * reset to restart the PCI card from scratch, as if from a cold-boot.
10818 * During the PCI subsystem error recovery, after driver returns
10819 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10820 * recovery and then call this routine before calling the .resume method
10821 * to recover the device. This function will initialize the HBA device,
10822 * enable the interrupt, but it will just put the HBA to offline state
10823 * without passing any I/O traffic.
10826 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10827 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10829 static pci_ers_result_t
10830 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
10832 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10833 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10834 struct lpfc_sli *psli = &phba->sli;
10835 uint32_t intr_mode;
10837 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10838 if (pci_enable_device_mem(pdev)) {
10839 printk(KERN_ERR "lpfc: Cannot re-enable "
10840 "PCI device after reset.\n");
10841 return PCI_ERS_RESULT_DISCONNECT;
10844 pci_restore_state(pdev);
10847 * As the new kernel behavior of pci_restore_state() API call clears
10848 * device saved_state flag, need to save the restored state again.
10850 pci_save_state(pdev);
10852 if (pdev->is_busmaster)
10853 pci_set_master(pdev);
10855 spin_lock_irq(&phba->hbalock);
10856 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10857 spin_unlock_irq(&phba->hbalock);
10859 /* Configure and enable interrupt */
10860 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10861 if (intr_mode == LPFC_INTR_ERROR) {
10862 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10863 "0427 Cannot re-enable interrupt after "
10865 return PCI_ERS_RESULT_DISCONNECT;
10867 phba->intr_mode = intr_mode;
10869 /* Take device offline, it will perform cleanup */
10870 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10871 lpfc_offline(phba);
10872 lpfc_sli_brdrestart(phba);
10874 /* Log the current active interrupt mode */
10875 lpfc_log_intr_mode(phba, phba->intr_mode);
10877 return PCI_ERS_RESULT_RECOVERED;
10881 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
10882 * @pdev: pointer to PCI device
10884 * This routine is called from the PCI subsystem for error handling to device
10885 * with SLI-3 interface spec. It is called when kernel error recovery tells
10886 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10887 * error recovery. After this call, traffic can start to flow from this device
10891 lpfc_io_resume_s3(struct pci_dev *pdev)
10893 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10894 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10896 /* Bring device online, it will be no-op for non-fatal error resume */
10899 /* Clean up Advanced Error Reporting (AER) if needed */
10900 if (phba->hba_flag & HBA_AER_ENABLED)
10901 pci_cleanup_aer_uncorrect_error_status(pdev);
10905 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
10906 * @phba: pointer to lpfc hba data structure.
10908 * returns the number of ELS/CT IOCBs to reserve
10911 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
10913 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
10915 if (phba->sli_rev == LPFC_SLI_REV4) {
10916 if (max_xri <= 100)
10918 else if (max_xri <= 256)
10920 else if (max_xri <= 512)
10922 else if (max_xri <= 1024)
10924 else if (max_xri <= 1536)
10926 else if (max_xri <= 2048)
10935 * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
10936 * @phba: pointer to lpfc hba data structure.
10938 * returns the number of ELS/CT + NVMET IOCBs to reserve
10941 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
10943 int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
10945 if (phba->nvmet_support)
10946 max_xri += LPFC_NVMET_BUF_POST;
10952 * lpfc_write_firmware - attempt to write a firmware image to the port
10953 * @fw: pointer to firmware image returned from request_firmware.
10954 * @phba: pointer to lpfc hba data structure.
10958 lpfc_write_firmware(const struct firmware *fw, void *context)
10960 struct lpfc_hba *phba = (struct lpfc_hba *)context;
10961 char fwrev[FW_REV_STR_SIZE];
10962 struct lpfc_grp_hdr *image;
10963 struct list_head dma_buffer_list;
10965 struct lpfc_dmabuf *dmabuf, *next;
10966 uint32_t offset = 0, temp_offset = 0;
10967 uint32_t magic_number, ftype, fid, fsize;
10969 /* It can be null in no-wait mode, sanity check */
10974 image = (struct lpfc_grp_hdr *)fw->data;
10976 magic_number = be32_to_cpu(image->magic_number);
10977 ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
10978 fid = bf_get_be32(lpfc_grp_hdr_id, image),
10979 fsize = be32_to_cpu(image->size);
10981 INIT_LIST_HEAD(&dma_buffer_list);
10982 if ((magic_number != LPFC_GROUP_OJECT_MAGIC_G5 &&
10983 magic_number != LPFC_GROUP_OJECT_MAGIC_G6) ||
10984 ftype != LPFC_FILE_TYPE_GROUP || fsize != fw->size) {
10985 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10986 "3022 Invalid FW image found. "
10987 "Magic:%x Type:%x ID:%x Size %d %zd\n",
10988 magic_number, ftype, fid, fsize, fw->size);
10992 lpfc_decode_firmware_rev(phba, fwrev, 1);
10993 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
10994 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10995 "3023 Updating Firmware, Current Version:%s "
10996 "New Version:%s\n",
10997 fwrev, image->revision);
10998 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
10999 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
11005 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
11009 if (!dmabuf->virt) {
11014 list_add_tail(&dmabuf->list, &dma_buffer_list);
11016 while (offset < fw->size) {
11017 temp_offset = offset;
11018 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
11019 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
11020 memcpy(dmabuf->virt,
11021 fw->data + temp_offset,
11022 fw->size - temp_offset);
11023 temp_offset = fw->size;
11026 memcpy(dmabuf->virt, fw->data + temp_offset,
11028 temp_offset += SLI4_PAGE_SIZE;
11030 rc = lpfc_wr_object(phba, &dma_buffer_list,
11031 (fw->size - offset), &offset);
11039 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
11040 list_del(&dmabuf->list);
11041 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
11042 dmabuf->virt, dmabuf->phys);
11045 release_firmware(fw);
11047 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11048 "3024 Firmware update done: %d.\n", rc);
11053 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
11054 * @phba: pointer to lpfc hba data structure.
11056 * This routine is called to perform Linux generic firmware upgrade on device
11057 * that supports such feature.
11060 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
11062 uint8_t file_name[ELX_MODEL_NAME_SIZE];
11064 const struct firmware *fw;
11066 /* Only supported on SLI4 interface type 2 for now */
11067 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
11068 LPFC_SLI_INTF_IF_TYPE_2)
11071 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
11073 if (fw_upgrade == INT_FW_UPGRADE) {
11074 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
11075 file_name, &phba->pcidev->dev,
11076 GFP_KERNEL, (void *)phba,
11077 lpfc_write_firmware);
11078 } else if (fw_upgrade == RUN_FW_UPGRADE) {
11079 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
11081 lpfc_write_firmware(fw, (void *)phba);
11090 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
11091 * @pdev: pointer to PCI device
11092 * @pid: pointer to PCI device identifier
11094 * This routine is called from the kernel's PCI subsystem to device with
11095 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11096 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
11097 * information of the device and driver to see if the driver state that it
11098 * can support this kind of device. If the match is successful, the driver
11099 * core invokes this routine. If this routine determines it can claim the HBA,
11100 * it does all the initialization that it needs to do to handle the HBA
11104 * 0 - driver can claim the device
11105 * negative value - driver can not claim the device
11108 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
11110 struct lpfc_hba *phba;
11111 struct lpfc_vport *vport = NULL;
11112 struct Scsi_Host *shost = NULL;
11114 uint32_t cfg_mode, intr_mode;
11116 /* Allocate memory for HBA structure */
11117 phba = lpfc_hba_alloc(pdev);
11121 /* Perform generic PCI device enabling operation */
11122 error = lpfc_enable_pci_dev(phba);
11124 goto out_free_phba;
11126 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
11127 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
11129 goto out_disable_pci_dev;
11131 /* Set up SLI-4 specific device PCI memory space */
11132 error = lpfc_sli4_pci_mem_setup(phba);
11134 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11135 "1410 Failed to set up pci memory space.\n");
11136 goto out_disable_pci_dev;
11139 /* Set up SLI-4 Specific device driver resources */
11140 error = lpfc_sli4_driver_resource_setup(phba);
11142 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11143 "1412 Failed to set up driver resource.\n");
11144 goto out_unset_pci_mem_s4;
11147 cnt = phba->cfg_iocb_cnt * 1024;
11148 if (phba->nvmet_support)
11149 cnt += phba->cfg_nvmet_mrq_post * phba->cfg_nvmet_mrq;
11151 /* Initialize and populate the iocb list per host */
11152 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11153 "2821 initialize iocb list %d total %d\n",
11154 phba->cfg_iocb_cnt, cnt);
11155 error = lpfc_init_iocb_list(phba, cnt);
11158 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11159 "1413 Failed to initialize iocb list.\n");
11160 goto out_unset_driver_resource_s4;
11163 INIT_LIST_HEAD(&phba->active_rrq_list);
11164 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
11166 /* Set up common device driver resources */
11167 error = lpfc_setup_driver_resource_phase2(phba);
11169 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11170 "1414 Failed to set up driver resource.\n");
11171 goto out_free_iocb_list;
11174 /* Get the default values for Model Name and Description */
11175 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
11177 /* Create SCSI host to the physical port */
11178 error = lpfc_create_shost(phba);
11180 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11181 "1415 Failed to create scsi host.\n");
11182 goto out_unset_driver_resource;
11185 /* Configure sysfs attributes */
11186 vport = phba->pport;
11187 error = lpfc_alloc_sysfs_attr(vport);
11189 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11190 "1416 Failed to allocate sysfs attr\n");
11191 goto out_destroy_shost;
11194 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
11195 /* Now, trying to enable interrupt and bring up the device */
11196 cfg_mode = phba->cfg_use_msi;
11198 /* Put device to a known state before enabling interrupt */
11199 lpfc_stop_port(phba);
11201 /* Configure and enable interrupt */
11202 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
11203 if (intr_mode == LPFC_INTR_ERROR) {
11204 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11205 "0426 Failed to enable interrupt.\n");
11207 goto out_free_sysfs_attr;
11209 /* Default to single EQ for non-MSI-X */
11210 if (phba->intr_type != MSIX) {
11211 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
11212 phba->cfg_fcp_io_channel = 1;
11213 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11214 phba->cfg_nvme_io_channel = 1;
11215 if (phba->nvmet_support)
11216 phba->cfg_nvmet_mrq = 1;
11218 phba->io_channel_irqs = 1;
11221 /* Set up SLI-4 HBA */
11222 if (lpfc_sli4_hba_setup(phba)) {
11223 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11224 "1421 Failed to set up hba\n");
11226 goto out_disable_intr;
11229 /* Log the current active interrupt mode */
11230 phba->intr_mode = intr_mode;
11231 lpfc_log_intr_mode(phba, intr_mode);
11233 /* Perform post initialization setup */
11234 lpfc_post_init_setup(phba);
11236 /* NVME support in FW earlier in the driver load corrects the
11237 * FC4 type making a check for nvme_support unnecessary.
11239 if ((phba->nvmet_support == 0) &&
11240 (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
11241 /* Create NVME binding with nvme_fc_transport. This
11242 * ensures the vport is initialized. If the localport
11243 * create fails, it should not unload the driver to
11244 * support field issues.
11246 error = lpfc_nvme_create_localport(vport);
11248 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11249 "6004 NVME registration failed, "
11255 /* check for firmware upgrade or downgrade */
11256 if (phba->cfg_request_firmware_upgrade)
11257 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
11259 /* Check if there are static vports to be created. */
11260 lpfc_create_static_vport(phba);
11264 lpfc_sli4_disable_intr(phba);
11265 out_free_sysfs_attr:
11266 lpfc_free_sysfs_attr(vport);
11268 lpfc_destroy_shost(phba);
11269 out_unset_driver_resource:
11270 lpfc_unset_driver_resource_phase2(phba);
11271 out_free_iocb_list:
11272 lpfc_free_iocb_list(phba);
11273 out_unset_driver_resource_s4:
11274 lpfc_sli4_driver_resource_unset(phba);
11275 out_unset_pci_mem_s4:
11276 lpfc_sli4_pci_mem_unset(phba);
11277 out_disable_pci_dev:
11278 lpfc_disable_pci_dev(phba);
11280 scsi_host_put(shost);
11282 lpfc_hba_free(phba);
11287 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
11288 * @pdev: pointer to PCI device
11290 * This routine is called from the kernel's PCI subsystem to device with
11291 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11292 * removed from PCI bus, it performs all the necessary cleanup for the HBA
11293 * device to be removed from the PCI subsystem properly.
11296 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
11298 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11299 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
11300 struct lpfc_vport **vports;
11301 struct lpfc_hba *phba = vport->phba;
11304 /* Mark the device unloading flag */
11305 spin_lock_irq(&phba->hbalock);
11306 vport->load_flag |= FC_UNLOADING;
11307 spin_unlock_irq(&phba->hbalock);
11309 /* Free the HBA sysfs attributes */
11310 lpfc_free_sysfs_attr(vport);
11312 /* Release all the vports against this physical port */
11313 vports = lpfc_create_vport_work_array(phba);
11314 if (vports != NULL)
11315 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
11316 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
11318 fc_vport_terminate(vports[i]->fc_vport);
11320 lpfc_destroy_vport_work_array(phba, vports);
11322 /* Remove FC host and then SCSI host with the physical port */
11323 fc_remove_host(shost);
11324 scsi_remove_host(shost);
11326 /* Perform ndlp cleanup on the physical port. The nvme and nvmet
11327 * localports are destroyed after to cleanup all transport memory.
11329 lpfc_cleanup(vport);
11330 lpfc_nvmet_destroy_targetport(phba);
11331 lpfc_nvme_destroy_localport(vport);
11334 * Bring down the SLI Layer. This step disables all interrupts,
11335 * clears the rings, discards all mailbox commands, and resets
11336 * the HBA FCoE function.
11338 lpfc_debugfs_terminate(vport);
11339 lpfc_sli4_hba_unset(phba);
11341 spin_lock_irq(&phba->hbalock);
11342 list_del_init(&vport->listentry);
11343 spin_unlock_irq(&phba->hbalock);
11345 /* Perform scsi free before driver resource_unset since scsi
11346 * buffers are released to their corresponding pools here.
11348 lpfc_scsi_free(phba);
11349 lpfc_nvme_free(phba);
11350 lpfc_free_iocb_list(phba);
11352 lpfc_sli4_driver_resource_unset(phba);
11354 /* Unmap adapter Control and Doorbell registers */
11355 lpfc_sli4_pci_mem_unset(phba);
11357 /* Release PCI resources and disable device's PCI function */
11358 scsi_host_put(shost);
11359 lpfc_disable_pci_dev(phba);
11361 /* Finally, free the driver's device data structure */
11362 lpfc_hba_free(phba);
11368 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
11369 * @pdev: pointer to PCI device
11370 * @msg: power management message
11372 * This routine is called from the kernel's PCI subsystem to support system
11373 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
11374 * this method, it quiesces the device by stopping the driver's worker
11375 * thread for the device, turning off device's interrupt and DMA, and bring
11376 * the device offline. Note that as the driver implements the minimum PM
11377 * requirements to a power-aware driver's PM support for suspend/resume -- all
11378 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
11379 * method call will be treated as SUSPEND and the driver will fully
11380 * reinitialize its device during resume() method call, the driver will set
11381 * device to PCI_D3hot state in PCI config space instead of setting it
11382 * according to the @msg provided by the PM.
11385 * 0 - driver suspended the device
11389 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
11391 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11392 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11394 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11395 "2843 PCI device Power Management suspend.\n");
11397 /* Bring down the device */
11398 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11399 lpfc_offline(phba);
11400 kthread_stop(phba->worker_thread);
11402 /* Disable interrupt from device */
11403 lpfc_sli4_disable_intr(phba);
11404 lpfc_sli4_queue_destroy(phba);
11406 /* Save device state to PCI config space */
11407 pci_save_state(pdev);
11408 pci_set_power_state(pdev, PCI_D3hot);
11414 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
11415 * @pdev: pointer to PCI device
11417 * This routine is called from the kernel's PCI subsystem to support system
11418 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
11419 * this method, it restores the device's PCI config space state and fully
11420 * reinitializes the device and brings it online. Note that as the driver
11421 * implements the minimum PM requirements to a power-aware driver's PM for
11422 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
11423 * to the suspend() method call will be treated as SUSPEND and the driver
11424 * will fully reinitialize its device during resume() method call, the device
11425 * will be set to PCI_D0 directly in PCI config space before restoring the
11429 * 0 - driver suspended the device
11433 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
11435 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11436 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11437 uint32_t intr_mode;
11440 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11441 "0292 PCI device Power Management resume.\n");
11443 /* Restore device state from PCI config space */
11444 pci_set_power_state(pdev, PCI_D0);
11445 pci_restore_state(pdev);
11448 * As the new kernel behavior of pci_restore_state() API call clears
11449 * device saved_state flag, need to save the restored state again.
11451 pci_save_state(pdev);
11453 if (pdev->is_busmaster)
11454 pci_set_master(pdev);
11456 /* Startup the kernel thread for this host adapter. */
11457 phba->worker_thread = kthread_run(lpfc_do_work, phba,
11458 "lpfc_worker_%d", phba->brd_no);
11459 if (IS_ERR(phba->worker_thread)) {
11460 error = PTR_ERR(phba->worker_thread);
11461 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11462 "0293 PM resume failed to start worker "
11463 "thread: error=x%x.\n", error);
11467 /* Configure and enable interrupt */
11468 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
11469 if (intr_mode == LPFC_INTR_ERROR) {
11470 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11471 "0294 PM resume Failed to enable interrupt\n");
11474 phba->intr_mode = intr_mode;
11476 /* Restart HBA and bring it online */
11477 lpfc_sli_brdrestart(phba);
11480 /* Log the current active interrupt mode */
11481 lpfc_log_intr_mode(phba, phba->intr_mode);
11487 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
11488 * @phba: pointer to lpfc hba data structure.
11490 * This routine is called to prepare the SLI4 device for PCI slot recover. It
11491 * aborts all the outstanding SCSI I/Os to the pci device.
11494 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
11496 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11497 "2828 PCI channel I/O abort preparing for recovery\n");
11499 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
11500 * and let the SCSI mid-layer to retry them to recover.
11502 lpfc_sli_abort_fcp_rings(phba);
11506 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
11507 * @phba: pointer to lpfc hba data structure.
11509 * This routine is called to prepare the SLI4 device for PCI slot reset. It
11510 * disables the device interrupt and pci device, and aborts the internal FCP
11514 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
11516 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11517 "2826 PCI channel disable preparing for reset\n");
11519 /* Block any management I/Os to the device */
11520 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
11522 /* Block all SCSI devices' I/Os on the host */
11523 lpfc_scsi_dev_block(phba);
11525 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
11526 lpfc_sli_flush_fcp_rings(phba);
11528 /* stop all timers */
11529 lpfc_stop_hba_timers(phba);
11531 /* Disable interrupt and pci device */
11532 lpfc_sli4_disable_intr(phba);
11533 lpfc_sli4_queue_destroy(phba);
11534 pci_disable_device(phba->pcidev);
11538 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
11539 * @phba: pointer to lpfc hba data structure.
11541 * This routine is called to prepare the SLI4 device for PCI slot permanently
11542 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
11546 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
11548 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11549 "2827 PCI channel permanent disable for failure\n");
11551 /* Block all SCSI devices' I/Os on the host */
11552 lpfc_scsi_dev_block(phba);
11554 /* stop all timers */
11555 lpfc_stop_hba_timers(phba);
11557 /* Clean up all driver's outstanding SCSI I/Os */
11558 lpfc_sli_flush_fcp_rings(phba);
11562 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
11563 * @pdev: pointer to PCI device.
11564 * @state: the current PCI connection state.
11566 * This routine is called from the PCI subsystem for error handling to device
11567 * with SLI-4 interface spec. This function is called by the PCI subsystem
11568 * after a PCI bus error affecting this device has been detected. When this
11569 * function is invoked, it will need to stop all the I/Os and interrupt(s)
11570 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
11571 * for the PCI subsystem to perform proper recovery as desired.
11574 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11575 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11577 static pci_ers_result_t
11578 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
11580 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11581 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11584 case pci_channel_io_normal:
11585 /* Non-fatal error, prepare for recovery */
11586 lpfc_sli4_prep_dev_for_recover(phba);
11587 return PCI_ERS_RESULT_CAN_RECOVER;
11588 case pci_channel_io_frozen:
11589 /* Fatal error, prepare for slot reset */
11590 lpfc_sli4_prep_dev_for_reset(phba);
11591 return PCI_ERS_RESULT_NEED_RESET;
11592 case pci_channel_io_perm_failure:
11593 /* Permanent failure, prepare for device down */
11594 lpfc_sli4_prep_dev_for_perm_failure(phba);
11595 return PCI_ERS_RESULT_DISCONNECT;
11597 /* Unknown state, prepare and request slot reset */
11598 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11599 "2825 Unknown PCI error state: x%x\n", state);
11600 lpfc_sli4_prep_dev_for_reset(phba);
11601 return PCI_ERS_RESULT_NEED_RESET;
11606 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
11607 * @pdev: pointer to PCI device.
11609 * This routine is called from the PCI subsystem for error handling to device
11610 * with SLI-4 interface spec. It is called after PCI bus has been reset to
11611 * restart the PCI card from scratch, as if from a cold-boot. During the
11612 * PCI subsystem error recovery, after the driver returns
11613 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
11614 * recovery and then call this routine before calling the .resume method to
11615 * recover the device. This function will initialize the HBA device, enable
11616 * the interrupt, but it will just put the HBA to offline state without
11617 * passing any I/O traffic.
11620 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
11621 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11623 static pci_ers_result_t
11624 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
11626 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11627 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11628 struct lpfc_sli *psli = &phba->sli;
11629 uint32_t intr_mode;
11631 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
11632 if (pci_enable_device_mem(pdev)) {
11633 printk(KERN_ERR "lpfc: Cannot re-enable "
11634 "PCI device after reset.\n");
11635 return PCI_ERS_RESULT_DISCONNECT;
11638 pci_restore_state(pdev);
11641 * As the new kernel behavior of pci_restore_state() API call clears
11642 * device saved_state flag, need to save the restored state again.
11644 pci_save_state(pdev);
11646 if (pdev->is_busmaster)
11647 pci_set_master(pdev);
11649 spin_lock_irq(&phba->hbalock);
11650 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
11651 spin_unlock_irq(&phba->hbalock);
11653 /* Configure and enable interrupt */
11654 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
11655 if (intr_mode == LPFC_INTR_ERROR) {
11656 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11657 "2824 Cannot re-enable interrupt after "
11659 return PCI_ERS_RESULT_DISCONNECT;
11661 phba->intr_mode = intr_mode;
11663 /* Log the current active interrupt mode */
11664 lpfc_log_intr_mode(phba, phba->intr_mode);
11666 return PCI_ERS_RESULT_RECOVERED;
11670 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
11671 * @pdev: pointer to PCI device
11673 * This routine is called from the PCI subsystem for error handling to device
11674 * with SLI-4 interface spec. It is called when kernel error recovery tells
11675 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
11676 * error recovery. After this call, traffic can start to flow from this device
11680 lpfc_io_resume_s4(struct pci_dev *pdev)
11682 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11683 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11686 * In case of slot reset, as function reset is performed through
11687 * mailbox command which needs DMA to be enabled, this operation
11688 * has to be moved to the io resume phase. Taking device offline
11689 * will perform the necessary cleanup.
11691 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
11692 /* Perform device reset */
11693 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11694 lpfc_offline(phba);
11695 lpfc_sli_brdrestart(phba);
11696 /* Bring the device back online */
11700 /* Clean up Advanced Error Reporting (AER) if needed */
11701 if (phba->hba_flag & HBA_AER_ENABLED)
11702 pci_cleanup_aer_uncorrect_error_status(pdev);
11706 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
11707 * @pdev: pointer to PCI device
11708 * @pid: pointer to PCI device identifier
11710 * This routine is to be registered to the kernel's PCI subsystem. When an
11711 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
11712 * at PCI device-specific information of the device and driver to see if the
11713 * driver state that it can support this kind of device. If the match is
11714 * successful, the driver core invokes this routine. This routine dispatches
11715 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
11716 * do all the initialization that it needs to do to handle the HBA device
11720 * 0 - driver can claim the device
11721 * negative value - driver can not claim the device
11724 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
11727 struct lpfc_sli_intf intf;
11729 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
11732 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
11733 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
11734 rc = lpfc_pci_probe_one_s4(pdev, pid);
11736 rc = lpfc_pci_probe_one_s3(pdev, pid);
11742 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
11743 * @pdev: pointer to PCI device
11745 * This routine is to be registered to the kernel's PCI subsystem. When an
11746 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
11747 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
11748 * remove routine, which will perform all the necessary cleanup for the
11749 * device to be removed from the PCI subsystem properly.
11752 lpfc_pci_remove_one(struct pci_dev *pdev)
11754 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11755 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11757 switch (phba->pci_dev_grp) {
11758 case LPFC_PCI_DEV_LP:
11759 lpfc_pci_remove_one_s3(pdev);
11761 case LPFC_PCI_DEV_OC:
11762 lpfc_pci_remove_one_s4(pdev);
11765 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11766 "1424 Invalid PCI device group: 0x%x\n",
11767 phba->pci_dev_grp);
11774 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
11775 * @pdev: pointer to PCI device
11776 * @msg: power management message
11778 * This routine is to be registered to the kernel's PCI subsystem to support
11779 * system Power Management (PM). When PM invokes this method, it dispatches
11780 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
11781 * suspend the device.
11784 * 0 - driver suspended the device
11788 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
11790 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11791 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11794 switch (phba->pci_dev_grp) {
11795 case LPFC_PCI_DEV_LP:
11796 rc = lpfc_pci_suspend_one_s3(pdev, msg);
11798 case LPFC_PCI_DEV_OC:
11799 rc = lpfc_pci_suspend_one_s4(pdev, msg);
11802 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11803 "1425 Invalid PCI device group: 0x%x\n",
11804 phba->pci_dev_grp);
11811 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
11812 * @pdev: pointer to PCI device
11814 * This routine is to be registered to the kernel's PCI subsystem to support
11815 * system Power Management (PM). When PM invokes this method, it dispatches
11816 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
11817 * resume the device.
11820 * 0 - driver suspended the device
11824 lpfc_pci_resume_one(struct pci_dev *pdev)
11826 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11827 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11830 switch (phba->pci_dev_grp) {
11831 case LPFC_PCI_DEV_LP:
11832 rc = lpfc_pci_resume_one_s3(pdev);
11834 case LPFC_PCI_DEV_OC:
11835 rc = lpfc_pci_resume_one_s4(pdev);
11838 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11839 "1426 Invalid PCI device group: 0x%x\n",
11840 phba->pci_dev_grp);
11847 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
11848 * @pdev: pointer to PCI device.
11849 * @state: the current PCI connection state.
11851 * This routine is registered to the PCI subsystem for error handling. This
11852 * function is called by the PCI subsystem after a PCI bus error affecting
11853 * this device has been detected. When this routine is invoked, it dispatches
11854 * the action to the proper SLI-3 or SLI-4 device error detected handling
11855 * routine, which will perform the proper error detected operation.
11858 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11859 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11861 static pci_ers_result_t
11862 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
11864 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11865 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11866 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11868 switch (phba->pci_dev_grp) {
11869 case LPFC_PCI_DEV_LP:
11870 rc = lpfc_io_error_detected_s3(pdev, state);
11872 case LPFC_PCI_DEV_OC:
11873 rc = lpfc_io_error_detected_s4(pdev, state);
11876 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11877 "1427 Invalid PCI device group: 0x%x\n",
11878 phba->pci_dev_grp);
11885 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
11886 * @pdev: pointer to PCI device.
11888 * This routine is registered to the PCI subsystem for error handling. This
11889 * function is called after PCI bus has been reset to restart the PCI card
11890 * from scratch, as if from a cold-boot. When this routine is invoked, it
11891 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
11892 * routine, which will perform the proper device reset.
11895 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
11896 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11898 static pci_ers_result_t
11899 lpfc_io_slot_reset(struct pci_dev *pdev)
11901 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11902 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11903 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11905 switch (phba->pci_dev_grp) {
11906 case LPFC_PCI_DEV_LP:
11907 rc = lpfc_io_slot_reset_s3(pdev);
11909 case LPFC_PCI_DEV_OC:
11910 rc = lpfc_io_slot_reset_s4(pdev);
11913 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11914 "1428 Invalid PCI device group: 0x%x\n",
11915 phba->pci_dev_grp);
11922 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
11923 * @pdev: pointer to PCI device
11925 * This routine is registered to the PCI subsystem for error handling. It
11926 * is called when kernel error recovery tells the lpfc driver that it is
11927 * OK to resume normal PCI operation after PCI bus error recovery. When
11928 * this routine is invoked, it dispatches the action to the proper SLI-3
11929 * or SLI-4 device io_resume routine, which will resume the device operation.
11932 lpfc_io_resume(struct pci_dev *pdev)
11934 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11935 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11937 switch (phba->pci_dev_grp) {
11938 case LPFC_PCI_DEV_LP:
11939 lpfc_io_resume_s3(pdev);
11941 case LPFC_PCI_DEV_OC:
11942 lpfc_io_resume_s4(pdev);
11945 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11946 "1429 Invalid PCI device group: 0x%x\n",
11947 phba->pci_dev_grp);
11954 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
11955 * @phba: pointer to lpfc hba data structure.
11957 * This routine checks to see if OAS is supported for this adapter. If
11958 * supported, the configure Flash Optimized Fabric flag is set. Otherwise,
11959 * the enable oas flag is cleared and the pool created for OAS device data
11964 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
11967 if (!phba->cfg_EnableXLane)
11970 if (phba->sli4_hba.pc_sli4_params.oas_supported) {
11974 if (phba->device_data_mem_pool)
11975 mempool_destroy(phba->device_data_mem_pool);
11976 phba->device_data_mem_pool = NULL;
11983 * lpfc_fof_queue_setup - Set up all the fof queues
11984 * @phba: pointer to lpfc hba data structure.
11986 * This routine is invoked to set up all the fof queues for the FC HBA
11991 * -ENOMEM - No available memory
11994 lpfc_fof_queue_setup(struct lpfc_hba *phba)
11996 struct lpfc_sli_ring *pring;
11999 rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
12003 if (phba->cfg_fof) {
12005 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
12006 phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
12010 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
12011 phba->sli4_hba.oas_cq, LPFC_FCP);
12015 /* Bind this CQ/WQ to the NVME ring */
12016 pring = phba->sli4_hba.oas_wq->pring;
12017 pring->sli.sli4.wqp =
12018 (void *)phba->sli4_hba.oas_wq;
12019 phba->sli4_hba.oas_cq->pring = pring;
12025 lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
12027 lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
12033 * lpfc_fof_queue_create - Create all the fof queues
12034 * @phba: pointer to lpfc hba data structure.
12036 * This routine is invoked to allocate all the fof queues for the FC HBA
12037 * operation. For each SLI4 queue type, the parameters such as queue entry
12038 * count (queue depth) shall be taken from the module parameter. For now,
12039 * we just use some constant number as place holder.
12043 * -ENOMEM - No availble memory
12044 * -EIO - The mailbox failed to complete successfully.
12047 lpfc_fof_queue_create(struct lpfc_hba *phba)
12049 struct lpfc_queue *qdesc;
12052 /* Create FOF EQ */
12053 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
12054 phba->sli4_hba.eq_ecount);
12058 phba->sli4_hba.fof_eq = qdesc;
12060 if (phba->cfg_fof) {
12062 /* Create OAS CQ */
12063 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
12064 phba->sli4_hba.cq_ecount);
12068 phba->sli4_hba.oas_cq = qdesc;
12070 /* Create OAS WQ */
12071 wqesize = (phba->fcp_embed_io) ?
12072 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
12073 qdesc = lpfc_sli4_queue_alloc(phba, wqesize,
12074 phba->sli4_hba.wq_ecount);
12079 phba->sli4_hba.oas_wq = qdesc;
12080 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
12086 lpfc_fof_queue_destroy(phba);
12091 * lpfc_fof_queue_destroy - Destroy all the fof queues
12092 * @phba: pointer to lpfc hba data structure.
12094 * This routine is invoked to release all the SLI4 queues with the FC HBA
12101 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
12103 /* Release FOF Event queue */
12104 if (phba->sli4_hba.fof_eq != NULL) {
12105 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
12106 phba->sli4_hba.fof_eq = NULL;
12109 /* Release OAS Completion queue */
12110 if (phba->sli4_hba.oas_cq != NULL) {
12111 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
12112 phba->sli4_hba.oas_cq = NULL;
12115 /* Release OAS Work queue */
12116 if (phba->sli4_hba.oas_wq != NULL) {
12117 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
12118 phba->sli4_hba.oas_wq = NULL;
12123 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
12125 static const struct pci_error_handlers lpfc_err_handler = {
12126 .error_detected = lpfc_io_error_detected,
12127 .slot_reset = lpfc_io_slot_reset,
12128 .resume = lpfc_io_resume,
12131 static struct pci_driver lpfc_driver = {
12132 .name = LPFC_DRIVER_NAME,
12133 .id_table = lpfc_id_table,
12134 .probe = lpfc_pci_probe_one,
12135 .remove = lpfc_pci_remove_one,
12136 .shutdown = lpfc_pci_remove_one,
12137 .suspend = lpfc_pci_suspend_one,
12138 .resume = lpfc_pci_resume_one,
12139 .err_handler = &lpfc_err_handler,
12142 static const struct file_operations lpfc_mgmt_fop = {
12143 .owner = THIS_MODULE,
12146 static struct miscdevice lpfc_mgmt_dev = {
12147 .minor = MISC_DYNAMIC_MINOR,
12148 .name = "lpfcmgmt",
12149 .fops = &lpfc_mgmt_fop,
12153 * lpfc_init - lpfc module initialization routine
12155 * This routine is to be invoked when the lpfc module is loaded into the
12156 * kernel. The special kernel macro module_init() is used to indicate the
12157 * role of this routine to the kernel as lpfc module entry point.
12161 * -ENOMEM - FC attach transport failed
12162 * all others - failed
12169 printk(LPFC_MODULE_DESC "\n");
12170 printk(LPFC_COPYRIGHT "\n");
12172 error = misc_register(&lpfc_mgmt_dev);
12174 printk(KERN_ERR "Could not register lpfcmgmt device, "
12175 "misc_register returned with status %d", error);
12177 lpfc_transport_functions.vport_create = lpfc_vport_create;
12178 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
12179 lpfc_transport_template =
12180 fc_attach_transport(&lpfc_transport_functions);
12181 if (lpfc_transport_template == NULL)
12183 lpfc_vport_transport_template =
12184 fc_attach_transport(&lpfc_vport_transport_functions);
12185 if (lpfc_vport_transport_template == NULL) {
12186 fc_release_transport(lpfc_transport_template);
12190 /* Initialize in case vector mapping is needed */
12191 lpfc_used_cpu = NULL;
12192 lpfc_present_cpu = num_present_cpus();
12194 error = pci_register_driver(&lpfc_driver);
12196 fc_release_transport(lpfc_transport_template);
12197 fc_release_transport(lpfc_vport_transport_template);
12204 * lpfc_exit - lpfc module removal routine
12206 * This routine is invoked when the lpfc module is removed from the kernel.
12207 * The special kernel macro module_exit() is used to indicate the role of
12208 * this routine to the kernel as lpfc module exit point.
12213 misc_deregister(&lpfc_mgmt_dev);
12214 pci_unregister_driver(&lpfc_driver);
12215 fc_release_transport(lpfc_transport_template);
12216 fc_release_transport(lpfc_vport_transport_template);
12217 if (_dump_buf_data) {
12218 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
12219 "_dump_buf_data at 0x%p\n",
12220 (1L << _dump_buf_data_order), _dump_buf_data);
12221 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
12224 if (_dump_buf_dif) {
12225 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
12226 "_dump_buf_dif at 0x%p\n",
12227 (1L << _dump_buf_dif_order), _dump_buf_dif);
12228 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
12230 kfree(lpfc_used_cpu);
12231 idr_destroy(&lpfc_hba_index);
12234 module_init(lpfc_init);
12235 module_exit(lpfc_exit);
12236 MODULE_LICENSE("GPL");
12237 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
12238 MODULE_AUTHOR("Broadcom");
12239 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);