1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2019 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
6 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
7 * EMULEX and SLI are trademarks of Emulex. *
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>
40 #include <linux/irq.h>
41 #include <linux/bitops.h>
42 #include <linux/crash_dump.h>
43 #include <linux/cpu.h>
44 #include <linux/cpuhotplug.h>
46 #include <scsi/scsi.h>
47 #include <scsi/scsi_device.h>
48 #include <scsi/scsi_host.h>
49 #include <scsi/scsi_transport_fc.h>
50 #include <scsi/scsi_tcq.h>
51 #include <scsi/fc/fc_fs.h>
53 #include <linux/nvme-fc-driver.h>
58 #include "lpfc_sli4.h"
60 #include "lpfc_disc.h"
62 #include "lpfc_scsi.h"
63 #include "lpfc_nvme.h"
64 #include "lpfc_nvmet.h"
65 #include "lpfc_logmsg.h"
66 #include "lpfc_crtn.h"
67 #include "lpfc_vport.h"
68 #include "lpfc_version.h"
71 static enum cpuhp_state lpfc_cpuhp_state;
72 /* Used when mapping IRQ vectors in a driver centric manner */
73 static uint32_t lpfc_present_cpu;
75 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba);
76 static void lpfc_cpuhp_remove(struct lpfc_hba *phba);
77 static void lpfc_cpuhp_add(struct lpfc_hba *phba);
78 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
79 static int lpfc_post_rcv_buf(struct lpfc_hba *);
80 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
81 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
82 static int lpfc_setup_endian_order(struct lpfc_hba *);
83 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
84 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
85 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
86 static void lpfc_init_sgl_list(struct lpfc_hba *);
87 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
88 static void lpfc_free_active_sgl(struct lpfc_hba *);
89 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
90 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
91 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
92 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
93 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
94 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
95 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
96 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
97 static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int);
98 static void lpfc_setup_bg(struct lpfc_hba *, struct Scsi_Host *);
100 static struct scsi_transport_template *lpfc_transport_template = NULL;
101 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
102 static DEFINE_IDR(lpfc_hba_index);
103 #define LPFC_NVMET_BUF_POST 254
106 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
107 * @phba: pointer to lpfc hba data structure.
109 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
110 * mailbox command. It retrieves the revision information from the HBA and
111 * collects the Vital Product Data (VPD) about the HBA for preparing the
112 * configuration of the HBA.
116 * -ERESTART - requests the SLI layer to reset the HBA and try again.
117 * Any other value - indicates an error.
120 lpfc_config_port_prep(struct lpfc_hba *phba)
122 lpfc_vpd_t *vp = &phba->vpd;
126 char *lpfc_vpd_data = NULL;
128 static char licensed[56] =
129 "key unlock for use with gnu public licensed code only\0";
130 static int init_key = 1;
132 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
134 phba->link_state = LPFC_HBA_ERROR;
139 phba->link_state = LPFC_INIT_MBX_CMDS;
141 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
143 uint32_t *ptext = (uint32_t *) licensed;
145 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
146 *ptext = cpu_to_be32(*ptext);
150 lpfc_read_nv(phba, pmb);
151 memset((char*)mb->un.varRDnvp.rsvd3, 0,
152 sizeof (mb->un.varRDnvp.rsvd3));
153 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
156 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
158 if (rc != MBX_SUCCESS) {
159 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
160 "0324 Config Port initialization "
161 "error, mbxCmd x%x READ_NVPARM, "
163 mb->mbxCommand, mb->mbxStatus);
164 mempool_free(pmb, phba->mbox_mem_pool);
167 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
169 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
174 * Clear all option bits except LPFC_SLI3_BG_ENABLED,
175 * which was already set in lpfc_get_cfgparam()
177 phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
179 /* Setup and issue mailbox READ REV command */
180 lpfc_read_rev(phba, pmb);
181 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
182 if (rc != MBX_SUCCESS) {
183 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
184 "0439 Adapter failed to init, mbxCmd x%x "
185 "READ_REV, mbxStatus x%x\n",
186 mb->mbxCommand, mb->mbxStatus);
187 mempool_free( pmb, phba->mbox_mem_pool);
193 * The value of rr must be 1 since the driver set the cv field to 1.
194 * This setting requires the FW to set all revision fields.
196 if (mb->un.varRdRev.rr == 0) {
198 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
199 "0440 Adapter failed to init, READ_REV has "
200 "missing revision information.\n");
201 mempool_free(pmb, phba->mbox_mem_pool);
205 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
206 mempool_free(pmb, phba->mbox_mem_pool);
210 /* Save information as VPD data */
212 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
213 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
214 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
215 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
216 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
217 vp->rev.biuRev = mb->un.varRdRev.biuRev;
218 vp->rev.smRev = mb->un.varRdRev.smRev;
219 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
220 vp->rev.endecRev = mb->un.varRdRev.endecRev;
221 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
222 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
223 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
224 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
225 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
226 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
228 /* If the sli feature level is less then 9, we must
229 * tear down all RPIs and VPIs on link down if NPIV
232 if (vp->rev.feaLevelHigh < 9)
233 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
235 if (lpfc_is_LC_HBA(phba->pcidev->device))
236 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
237 sizeof (phba->RandomData));
239 /* Get adapter VPD information */
240 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
244 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
245 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
247 if (rc != MBX_SUCCESS) {
248 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
249 "0441 VPD not present on adapter, "
250 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
251 mb->mbxCommand, mb->mbxStatus);
252 mb->un.varDmp.word_cnt = 0;
254 /* dump mem may return a zero when finished or we got a
255 * mailbox error, either way we are done.
257 if (mb->un.varDmp.word_cnt == 0)
259 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
260 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
261 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
262 lpfc_vpd_data + offset,
263 mb->un.varDmp.word_cnt);
264 offset += mb->un.varDmp.word_cnt;
265 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
266 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
268 kfree(lpfc_vpd_data);
270 mempool_free(pmb, phba->mbox_mem_pool);
275 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
276 * @phba: pointer to lpfc hba data structure.
277 * @pmboxq: pointer to the driver internal queue element for mailbox command.
279 * This is the completion handler for driver's configuring asynchronous event
280 * mailbox command to the device. If the mailbox command returns successfully,
281 * it will set internal async event support flag to 1; otherwise, it will
282 * set internal async event support flag to 0.
285 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
287 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
288 phba->temp_sensor_support = 1;
290 phba->temp_sensor_support = 0;
291 mempool_free(pmboxq, phba->mbox_mem_pool);
296 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
297 * @phba: pointer to lpfc hba data structure.
298 * @pmboxq: pointer to the driver internal queue element for mailbox command.
300 * This is the completion handler for dump mailbox command for getting
301 * wake up parameters. When this command complete, the response contain
302 * Option rom version of the HBA. This function translate the version number
303 * into a human readable string and store it in OptionROMVersion.
306 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
309 uint32_t prog_id_word;
311 /* character array used for decoding dist type. */
312 char dist_char[] = "nabx";
314 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
315 mempool_free(pmboxq, phba->mbox_mem_pool);
319 prg = (struct prog_id *) &prog_id_word;
321 /* word 7 contain option rom version */
322 prog_id_word = pmboxq->u.mb.un.varWords[7];
324 /* Decode the Option rom version word to a readable string */
326 dist = dist_char[prg->dist];
328 if ((prg->dist == 3) && (prg->num == 0))
329 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
330 prg->ver, prg->rev, prg->lev);
332 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
333 prg->ver, prg->rev, prg->lev,
335 mempool_free(pmboxq, phba->mbox_mem_pool);
340 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
341 * cfg_soft_wwnn, cfg_soft_wwpn
342 * @vport: pointer to lpfc vport data structure.
349 lpfc_update_vport_wwn(struct lpfc_vport *vport)
351 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
352 u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
354 /* If the soft name exists then update it using the service params */
355 if (vport->phba->cfg_soft_wwnn)
356 u64_to_wwn(vport->phba->cfg_soft_wwnn,
357 vport->fc_sparam.nodeName.u.wwn);
358 if (vport->phba->cfg_soft_wwpn)
359 u64_to_wwn(vport->phba->cfg_soft_wwpn,
360 vport->fc_sparam.portName.u.wwn);
363 * If the name is empty or there exists a soft name
364 * then copy the service params name, otherwise use the fc name
366 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
367 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
368 sizeof(struct lpfc_name));
370 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
371 sizeof(struct lpfc_name));
374 * If the port name has changed, then set the Param changes flag
377 if (vport->fc_portname.u.wwn[0] != 0 &&
378 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
379 sizeof(struct lpfc_name)))
380 vport->vport_flag |= FAWWPN_PARAM_CHG;
382 if (vport->fc_portname.u.wwn[0] == 0 ||
383 vport->phba->cfg_soft_wwpn ||
384 (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
385 vport->vport_flag & FAWWPN_SET) {
386 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
387 sizeof(struct lpfc_name));
388 vport->vport_flag &= ~FAWWPN_SET;
389 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
390 vport->vport_flag |= FAWWPN_SET;
393 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
394 sizeof(struct lpfc_name));
398 * lpfc_config_port_post - Perform lpfc initialization after config port
399 * @phba: pointer to lpfc hba data structure.
401 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
402 * command call. It performs all internal resource and state setups on the
403 * port: post IOCB buffers, enable appropriate host interrupt attentions,
404 * ELS ring timers, etc.
408 * Any other value - error.
411 lpfc_config_port_post(struct lpfc_hba *phba)
413 struct lpfc_vport *vport = phba->pport;
414 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
417 struct lpfc_dmabuf *mp;
418 struct lpfc_sli *psli = &phba->sli;
419 uint32_t status, timeout;
423 spin_lock_irq(&phba->hbalock);
425 * If the Config port completed correctly the HBA is not
426 * over heated any more.
428 if (phba->over_temp_state == HBA_OVER_TEMP)
429 phba->over_temp_state = HBA_NORMAL_TEMP;
430 spin_unlock_irq(&phba->hbalock);
432 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
434 phba->link_state = LPFC_HBA_ERROR;
439 /* Get login parameters for NID. */
440 rc = lpfc_read_sparam(phba, pmb, 0);
442 mempool_free(pmb, phba->mbox_mem_pool);
447 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
448 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
449 "0448 Adapter failed init, mbxCmd x%x "
450 "READ_SPARM mbxStatus x%x\n",
451 mb->mbxCommand, mb->mbxStatus);
452 phba->link_state = LPFC_HBA_ERROR;
453 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
454 mempool_free(pmb, phba->mbox_mem_pool);
455 lpfc_mbuf_free(phba, mp->virt, mp->phys);
460 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
462 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
463 lpfc_mbuf_free(phba, mp->virt, mp->phys);
466 lpfc_update_vport_wwn(vport);
468 /* Update the fc_host data structures with new wwn. */
469 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
470 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
471 fc_host_max_npiv_vports(shost) = phba->max_vpi;
473 /* If no serial number in VPD data, use low 6 bytes of WWNN */
474 /* This should be consolidated into parse_vpd ? - mr */
475 if (phba->SerialNumber[0] == 0) {
478 outptr = &vport->fc_nodename.u.s.IEEE[0];
479 for (i = 0; i < 12; i++) {
481 j = ((status & 0xf0) >> 4);
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 phba->SerialNumber[i] =
492 (char)((uint8_t) 0x30 + (uint8_t) j);
494 phba->SerialNumber[i] =
495 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
499 lpfc_read_config(phba, pmb);
501 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
502 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
503 "0453 Adapter failed to init, mbxCmd x%x "
504 "READ_CONFIG, mbxStatus x%x\n",
505 mb->mbxCommand, mb->mbxStatus);
506 phba->link_state = LPFC_HBA_ERROR;
507 mempool_free( pmb, phba->mbox_mem_pool);
511 /* Check if the port is disabled */
512 lpfc_sli_read_link_ste(phba);
514 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
515 i = (mb->un.varRdConfig.max_xri + 1);
516 if (phba->cfg_hba_queue_depth > i) {
517 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
518 "3359 HBA queue depth changed from %d to %d\n",
519 phba->cfg_hba_queue_depth, i);
520 phba->cfg_hba_queue_depth = i;
523 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
524 i = (mb->un.varRdConfig.max_xri >> 3);
525 if (phba->pport->cfg_lun_queue_depth > i) {
526 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
527 "3360 LUN queue depth changed from %d to %d\n",
528 phba->pport->cfg_lun_queue_depth, i);
529 phba->pport->cfg_lun_queue_depth = i;
532 phba->lmt = mb->un.varRdConfig.lmt;
534 /* Get the default values for Model Name and Description */
535 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
537 phba->link_state = LPFC_LINK_DOWN;
539 /* Only process IOCBs on ELS ring till hba_state is READY */
540 if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
541 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
542 if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
543 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
545 /* Post receive buffers for desired rings */
546 if (phba->sli_rev != 3)
547 lpfc_post_rcv_buf(phba);
550 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
552 if (phba->intr_type == MSIX) {
553 rc = lpfc_config_msi(phba, pmb);
555 mempool_free(pmb, phba->mbox_mem_pool);
558 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
559 if (rc != MBX_SUCCESS) {
560 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
561 "0352 Config MSI mailbox command "
562 "failed, mbxCmd x%x, mbxStatus x%x\n",
563 pmb->u.mb.mbxCommand,
564 pmb->u.mb.mbxStatus);
565 mempool_free(pmb, phba->mbox_mem_pool);
570 spin_lock_irq(&phba->hbalock);
571 /* Initialize ERATT handling flag */
572 phba->hba_flag &= ~HBA_ERATT_HANDLED;
574 /* Enable appropriate host interrupts */
575 if (lpfc_readl(phba->HCregaddr, &status)) {
576 spin_unlock_irq(&phba->hbalock);
579 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
580 if (psli->num_rings > 0)
581 status |= HC_R0INT_ENA;
582 if (psli->num_rings > 1)
583 status |= HC_R1INT_ENA;
584 if (psli->num_rings > 2)
585 status |= HC_R2INT_ENA;
586 if (psli->num_rings > 3)
587 status |= HC_R3INT_ENA;
589 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
590 (phba->cfg_poll & DISABLE_FCP_RING_INT))
591 status &= ~(HC_R0INT_ENA);
593 writel(status, phba->HCregaddr);
594 readl(phba->HCregaddr); /* flush */
595 spin_unlock_irq(&phba->hbalock);
597 /* Set up ring-0 (ELS) timer */
598 timeout = phba->fc_ratov * 2;
599 mod_timer(&vport->els_tmofunc,
600 jiffies + msecs_to_jiffies(1000 * timeout));
601 /* Set up heart beat (HB) timer */
602 mod_timer(&phba->hb_tmofunc,
603 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
604 phba->hb_outstanding = 0;
605 phba->last_completion_time = jiffies;
606 /* Set up error attention (ERATT) polling timer */
607 mod_timer(&phba->eratt_poll,
608 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
610 if (phba->hba_flag & LINK_DISABLED) {
611 lpfc_printf_log(phba,
613 "2598 Adapter Link is disabled.\n");
614 lpfc_down_link(phba, pmb);
615 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
616 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
617 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
618 lpfc_printf_log(phba,
620 "2599 Adapter failed to issue DOWN_LINK"
621 " mbox command rc 0x%x\n", rc);
623 mempool_free(pmb, phba->mbox_mem_pool);
626 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
627 mempool_free(pmb, phba->mbox_mem_pool);
628 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
632 /* MBOX buffer will be freed in mbox compl */
633 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
635 phba->link_state = LPFC_HBA_ERROR;
639 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
640 pmb->mbox_cmpl = lpfc_config_async_cmpl;
641 pmb->vport = phba->pport;
642 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
644 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
645 lpfc_printf_log(phba,
648 "0456 Adapter failed to issue "
649 "ASYNCEVT_ENABLE mbox status x%x\n",
651 mempool_free(pmb, phba->mbox_mem_pool);
654 /* Get Option rom version */
655 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
657 phba->link_state = LPFC_HBA_ERROR;
661 lpfc_dump_wakeup_param(phba, pmb);
662 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
663 pmb->vport = phba->pport;
664 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
666 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
667 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
668 "to get Option ROM version status x%x\n", rc);
669 mempool_free(pmb, phba->mbox_mem_pool);
676 * lpfc_hba_init_link - Initialize the FC link
677 * @phba: pointer to lpfc hba data structure.
678 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
680 * This routine will issue the INIT_LINK mailbox command call.
681 * It is available to other drivers through the lpfc_hba data
682 * structure for use as a delayed link up mechanism with the
683 * module parameter lpfc_suppress_link_up.
687 * Any other value - error
690 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
692 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
696 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
697 * @phba: pointer to lpfc hba data structure.
698 * @fc_topology: desired fc topology.
699 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
701 * This routine will issue the INIT_LINK mailbox command call.
702 * It is available to other drivers through the lpfc_hba data
703 * structure for use as a delayed link up mechanism with the
704 * module parameter lpfc_suppress_link_up.
708 * Any other value - error
711 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
714 struct lpfc_vport *vport = phba->pport;
719 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
721 phba->link_state = LPFC_HBA_ERROR;
727 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
728 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
729 !(phba->lmt & LMT_1Gb)) ||
730 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
731 !(phba->lmt & LMT_2Gb)) ||
732 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
733 !(phba->lmt & LMT_4Gb)) ||
734 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
735 !(phba->lmt & LMT_8Gb)) ||
736 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
737 !(phba->lmt & LMT_10Gb)) ||
738 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
739 !(phba->lmt & LMT_16Gb)) ||
740 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
741 !(phba->lmt & LMT_32Gb)) ||
742 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
743 !(phba->lmt & LMT_64Gb))) {
744 /* Reset link speed to auto */
745 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
746 "1302 Invalid speed for this board:%d "
747 "Reset link speed to auto.\n",
748 phba->cfg_link_speed);
749 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
751 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
752 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
753 if (phba->sli_rev < LPFC_SLI_REV4)
754 lpfc_set_loopback_flag(phba);
755 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
756 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
757 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
758 "0498 Adapter failed to init, mbxCmd x%x "
759 "INIT_LINK, mbxStatus x%x\n",
760 mb->mbxCommand, mb->mbxStatus);
761 if (phba->sli_rev <= LPFC_SLI_REV3) {
762 /* Clear all interrupt enable conditions */
763 writel(0, phba->HCregaddr);
764 readl(phba->HCregaddr); /* flush */
765 /* Clear all pending interrupts */
766 writel(0xffffffff, phba->HAregaddr);
767 readl(phba->HAregaddr); /* flush */
769 phba->link_state = LPFC_HBA_ERROR;
770 if (rc != MBX_BUSY || flag == MBX_POLL)
771 mempool_free(pmb, phba->mbox_mem_pool);
774 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
775 if (flag == MBX_POLL)
776 mempool_free(pmb, phba->mbox_mem_pool);
782 * lpfc_hba_down_link - this routine downs the FC link
783 * @phba: pointer to lpfc hba data structure.
784 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
786 * This routine will issue the DOWN_LINK mailbox command call.
787 * It is available to other drivers through the lpfc_hba data
788 * structure for use to stop the link.
792 * Any other value - error
795 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
800 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
802 phba->link_state = LPFC_HBA_ERROR;
806 lpfc_printf_log(phba,
808 "0491 Adapter Link is disabled.\n");
809 lpfc_down_link(phba, pmb);
810 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
811 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
812 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
813 lpfc_printf_log(phba,
815 "2522 Adapter failed to issue DOWN_LINK"
816 " mbox command rc 0x%x\n", rc);
818 mempool_free(pmb, phba->mbox_mem_pool);
821 if (flag == MBX_POLL)
822 mempool_free(pmb, phba->mbox_mem_pool);
828 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
829 * @phba: pointer to lpfc HBA data structure.
831 * This routine will do LPFC uninitialization before the HBA is reset when
832 * bringing down the SLI Layer.
836 * Any other value - error.
839 lpfc_hba_down_prep(struct lpfc_hba *phba)
841 struct lpfc_vport **vports;
844 if (phba->sli_rev <= LPFC_SLI_REV3) {
845 /* Disable interrupts */
846 writel(0, phba->HCregaddr);
847 readl(phba->HCregaddr); /* flush */
850 if (phba->pport->load_flag & FC_UNLOADING)
851 lpfc_cleanup_discovery_resources(phba->pport);
853 vports = lpfc_create_vport_work_array(phba);
855 for (i = 0; i <= phba->max_vports &&
856 vports[i] != NULL; i++)
857 lpfc_cleanup_discovery_resources(vports[i]);
858 lpfc_destroy_vport_work_array(phba, vports);
864 * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
865 * rspiocb which got deferred
867 * @phba: pointer to lpfc HBA data structure.
869 * This routine will cleanup completed slow path events after HBA is reset
870 * when bringing down the SLI Layer.
877 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
879 struct lpfc_iocbq *rspiocbq;
880 struct hbq_dmabuf *dmabuf;
881 struct lpfc_cq_event *cq_event;
883 spin_lock_irq(&phba->hbalock);
884 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
885 spin_unlock_irq(&phba->hbalock);
887 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
888 /* Get the response iocb from the head of work queue */
889 spin_lock_irq(&phba->hbalock);
890 list_remove_head(&phba->sli4_hba.sp_queue_event,
891 cq_event, struct lpfc_cq_event, list);
892 spin_unlock_irq(&phba->hbalock);
894 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
895 case CQE_CODE_COMPL_WQE:
896 rspiocbq = container_of(cq_event, struct lpfc_iocbq,
898 lpfc_sli_release_iocbq(phba, rspiocbq);
900 case CQE_CODE_RECEIVE:
901 case CQE_CODE_RECEIVE_V1:
902 dmabuf = container_of(cq_event, struct hbq_dmabuf,
904 lpfc_in_buf_free(phba, &dmabuf->dbuf);
910 * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
911 * @phba: pointer to lpfc HBA data structure.
913 * This routine will cleanup posted ELS buffers after the HBA is reset
914 * when bringing down the SLI Layer.
921 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
923 struct lpfc_sli *psli = &phba->sli;
924 struct lpfc_sli_ring *pring;
925 struct lpfc_dmabuf *mp, *next_mp;
929 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
930 lpfc_sli_hbqbuf_free_all(phba);
932 /* Cleanup preposted buffers on the ELS ring */
933 pring = &psli->sli3_ring[LPFC_ELS_RING];
934 spin_lock_irq(&phba->hbalock);
935 list_splice_init(&pring->postbufq, &buflist);
936 spin_unlock_irq(&phba->hbalock);
939 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
942 lpfc_mbuf_free(phba, mp->virt, mp->phys);
946 spin_lock_irq(&phba->hbalock);
947 pring->postbufq_cnt -= count;
948 spin_unlock_irq(&phba->hbalock);
953 * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
954 * @phba: pointer to lpfc HBA data structure.
956 * This routine will cleanup the txcmplq after the HBA is reset when bringing
957 * down the SLI Layer.
963 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
965 struct lpfc_sli *psli = &phba->sli;
966 struct lpfc_queue *qp = NULL;
967 struct lpfc_sli_ring *pring;
968 LIST_HEAD(completions);
970 struct lpfc_iocbq *piocb, *next_iocb;
972 if (phba->sli_rev != LPFC_SLI_REV4) {
973 for (i = 0; i < psli->num_rings; i++) {
974 pring = &psli->sli3_ring[i];
975 spin_lock_irq(&phba->hbalock);
976 /* At this point in time the HBA is either reset or DOA
977 * Nothing should be on txcmplq as it will
980 list_splice_init(&pring->txcmplq, &completions);
981 pring->txcmplq_cnt = 0;
982 spin_unlock_irq(&phba->hbalock);
984 lpfc_sli_abort_iocb_ring(phba, pring);
986 /* Cancel all the IOCBs from the completions list */
987 lpfc_sli_cancel_iocbs(phba, &completions,
988 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
991 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
995 spin_lock_irq(&pring->ring_lock);
996 list_for_each_entry_safe(piocb, next_iocb,
997 &pring->txcmplq, list)
998 piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
999 list_splice_init(&pring->txcmplq, &completions);
1000 pring->txcmplq_cnt = 0;
1001 spin_unlock_irq(&pring->ring_lock);
1002 lpfc_sli_abort_iocb_ring(phba, pring);
1004 /* Cancel all the IOCBs from the completions list */
1005 lpfc_sli_cancel_iocbs(phba, &completions,
1006 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1010 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
1012 * @phba: pointer to lpfc HBA data structure.
1014 * This routine will do uninitialization after the HBA is reset when bring
1015 * down the SLI Layer.
1019 * Any other value - error.
1022 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1024 lpfc_hba_free_post_buf(phba);
1025 lpfc_hba_clean_txcmplq(phba);
1030 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1031 * @phba: pointer to lpfc HBA data structure.
1033 * This routine will do uninitialization after the HBA is reset when bring
1034 * down the SLI Layer.
1038 * Any other value - error.
1041 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1043 struct lpfc_io_buf *psb, *psb_next;
1044 struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next;
1045 struct lpfc_sli4_hdw_queue *qp;
1047 LIST_HEAD(nvme_aborts);
1048 LIST_HEAD(nvmet_aborts);
1049 struct lpfc_sglq *sglq_entry = NULL;
1053 lpfc_sli_hbqbuf_free_all(phba);
1054 lpfc_hba_clean_txcmplq(phba);
1056 /* At this point in time the HBA is either reset or DOA. Either
1057 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1058 * on the lpfc_els_sgl_list so that it can either be freed if the
1059 * driver is unloading or reposted if the driver is restarting
1062 spin_lock_irq(&phba->hbalock); /* required for lpfc_els_sgl_list and */
1064 /* sgl_list_lock required because worker thread uses this
1067 spin_lock(&phba->sli4_hba.sgl_list_lock);
1068 list_for_each_entry(sglq_entry,
1069 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1070 sglq_entry->state = SGL_FREED;
1072 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1073 &phba->sli4_hba.lpfc_els_sgl_list);
1076 spin_unlock(&phba->sli4_hba.sgl_list_lock);
1078 /* abts_xxxx_buf_list_lock required because worker thread uses this
1082 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
1083 qp = &phba->sli4_hba.hdwq[idx];
1085 spin_lock(&qp->abts_io_buf_list_lock);
1086 list_splice_init(&qp->lpfc_abts_io_buf_list,
1089 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1091 psb->status = IOSTAT_SUCCESS;
1094 spin_lock(&qp->io_buf_list_put_lock);
1095 list_splice_init(&aborts, &qp->lpfc_io_buf_list_put);
1096 qp->put_io_bufs += qp->abts_scsi_io_bufs;
1097 qp->put_io_bufs += qp->abts_nvme_io_bufs;
1098 qp->abts_scsi_io_bufs = 0;
1099 qp->abts_nvme_io_bufs = 0;
1100 spin_unlock(&qp->io_buf_list_put_lock);
1101 spin_unlock(&qp->abts_io_buf_list_lock);
1103 spin_unlock_irq(&phba->hbalock);
1105 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1106 spin_lock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1107 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1109 spin_unlock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1110 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1111 ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP);
1112 lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1116 lpfc_sli4_free_sp_events(phba);
1121 * lpfc_hba_down_post - Wrapper func for hba down post routine
1122 * @phba: pointer to lpfc HBA data structure.
1124 * This routine wraps the actual SLI3 or SLI4 routine for performing
1125 * uninitialization after the HBA is reset when bring down the SLI Layer.
1129 * Any other value - error.
1132 lpfc_hba_down_post(struct lpfc_hba *phba)
1134 return (*phba->lpfc_hba_down_post)(phba);
1138 * lpfc_hb_timeout - The HBA-timer timeout handler
1139 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1141 * This is the HBA-timer timeout handler registered to the lpfc driver. When
1142 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1143 * work-port-events bitmap and the worker thread is notified. This timeout
1144 * event will be used by the worker thread to invoke the actual timeout
1145 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1146 * be performed in the timeout handler and the HBA timeout event bit shall
1147 * be cleared by the worker thread after it has taken the event bitmap out.
1150 lpfc_hb_timeout(struct timer_list *t)
1152 struct lpfc_hba *phba;
1153 uint32_t tmo_posted;
1154 unsigned long iflag;
1156 phba = from_timer(phba, t, hb_tmofunc);
1158 /* Check for heart beat timeout conditions */
1159 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1160 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1162 phba->pport->work_port_events |= WORKER_HB_TMO;
1163 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1165 /* Tell the worker thread there is work to do */
1167 lpfc_worker_wake_up(phba);
1172 * lpfc_rrq_timeout - The RRQ-timer timeout handler
1173 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1175 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1176 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1177 * work-port-events bitmap and the worker thread is notified. This timeout
1178 * event will be used by the worker thread to invoke the actual timeout
1179 * handler routine, lpfc_rrq_handler. Any periodical operations will
1180 * be performed in the timeout handler and the RRQ timeout event bit shall
1181 * be cleared by the worker thread after it has taken the event bitmap out.
1184 lpfc_rrq_timeout(struct timer_list *t)
1186 struct lpfc_hba *phba;
1187 unsigned long iflag;
1189 phba = from_timer(phba, t, rrq_tmr);
1190 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1191 if (!(phba->pport->load_flag & FC_UNLOADING))
1192 phba->hba_flag |= HBA_RRQ_ACTIVE;
1194 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1195 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1197 if (!(phba->pport->load_flag & FC_UNLOADING))
1198 lpfc_worker_wake_up(phba);
1202 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1203 * @phba: pointer to lpfc hba data structure.
1204 * @pmboxq: pointer to the driver internal queue element for mailbox command.
1206 * This is the callback function to the lpfc heart-beat mailbox command.
1207 * If configured, the lpfc driver issues the heart-beat mailbox command to
1208 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1209 * heart-beat mailbox command is issued, the driver shall set up heart-beat
1210 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1211 * heart-beat outstanding state. Once the mailbox command comes back and
1212 * no error conditions detected, the heart-beat mailbox command timer is
1213 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1214 * state is cleared for the next heart-beat. If the timer expired with the
1215 * heart-beat outstanding state set, the driver will put the HBA offline.
1218 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1220 unsigned long drvr_flag;
1222 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1223 phba->hb_outstanding = 0;
1224 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1226 /* Check and reset heart-beat timer is necessary */
1227 mempool_free(pmboxq, phba->mbox_mem_pool);
1228 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1229 !(phba->link_state == LPFC_HBA_ERROR) &&
1230 !(phba->pport->load_flag & FC_UNLOADING))
1231 mod_timer(&phba->hb_tmofunc,
1233 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1238 lpfc_hb_eq_delay_work(struct work_struct *work)
1240 struct lpfc_hba *phba = container_of(to_delayed_work(work),
1241 struct lpfc_hba, eq_delay_work);
1242 struct lpfc_eq_intr_info *eqi, *eqi_new;
1243 struct lpfc_queue *eq, *eq_next;
1244 unsigned char *ena_delay = NULL;
1248 if (!phba->cfg_auto_imax || phba->pport->load_flag & FC_UNLOADING)
1251 if (phba->link_state == LPFC_HBA_ERROR ||
1252 phba->pport->fc_flag & FC_OFFLINE_MODE)
1255 ena_delay = kcalloc(phba->sli4_hba.num_possible_cpu, sizeof(*ena_delay),
1260 for (i = 0; i < phba->cfg_irq_chann; i++) {
1261 /* Get the EQ corresponding to the IRQ vector */
1262 eq = phba->sli4_hba.hba_eq_hdl[i].eq;
1265 if (eq->q_mode || eq->q_flag & HBA_EQ_DELAY_CHK) {
1266 eq->q_flag &= ~HBA_EQ_DELAY_CHK;
1267 ena_delay[eq->last_cpu] = 1;
1271 for_each_present_cpu(i) {
1272 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
1274 usdelay = (eqi->icnt >> 10) * LPFC_EQ_DELAY_STEP;
1275 if (usdelay > LPFC_MAX_AUTO_EQ_DELAY)
1276 usdelay = LPFC_MAX_AUTO_EQ_DELAY;
1283 list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) {
1284 if (unlikely(eq->last_cpu != i)) {
1285 eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info,
1287 list_move_tail(&eq->cpu_list, &eqi_new->list);
1290 if (usdelay != eq->q_mode)
1291 lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1,
1299 queue_delayed_work(phba->wq, &phba->eq_delay_work,
1300 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
1304 * lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution
1305 * @phba: pointer to lpfc hba data structure.
1307 * For each heartbeat, this routine does some heuristic methods to adjust
1308 * XRI distribution. The goal is to fully utilize free XRIs.
1310 static void lpfc_hb_mxp_handler(struct lpfc_hba *phba)
1315 hwq_count = phba->cfg_hdw_queue;
1316 for (i = 0; i < hwq_count; i++) {
1317 /* Adjust XRIs in private pool */
1318 lpfc_adjust_pvt_pool_count(phba, i);
1320 /* Adjust high watermark */
1321 lpfc_adjust_high_watermark(phba, i);
1323 #ifdef LPFC_MXP_STAT
1324 /* Snapshot pbl, pvt and busy count */
1325 lpfc_snapshot_mxp(phba, i);
1331 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1332 * @phba: pointer to lpfc hba data structure.
1334 * This is the actual HBA-timer timeout handler to be invoked by the worker
1335 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1336 * handler performs any periodic operations needed for the device. If such
1337 * periodic event has already been attended to either in the interrupt handler
1338 * or by processing slow-ring or fast-ring events within the HBA-timer
1339 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1340 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1341 * is configured and there is no heart-beat mailbox command outstanding, a
1342 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1343 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1347 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1349 struct lpfc_vport **vports;
1350 LPFC_MBOXQ_t *pmboxq;
1351 struct lpfc_dmabuf *buf_ptr;
1353 struct lpfc_sli *psli = &phba->sli;
1354 LIST_HEAD(completions);
1356 if (phba->cfg_xri_rebalancing) {
1357 /* Multi-XRI pools handler */
1358 lpfc_hb_mxp_handler(phba);
1361 vports = lpfc_create_vport_work_array(phba);
1363 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1364 lpfc_rcv_seq_check_edtov(vports[i]);
1365 lpfc_fdmi_num_disc_check(vports[i]);
1367 lpfc_destroy_vport_work_array(phba, vports);
1369 if ((phba->link_state == LPFC_HBA_ERROR) ||
1370 (phba->pport->load_flag & FC_UNLOADING) ||
1371 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1374 spin_lock_irq(&phba->pport->work_port_lock);
1376 if (time_after(phba->last_completion_time +
1377 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1379 spin_unlock_irq(&phba->pport->work_port_lock);
1380 if (!phba->hb_outstanding)
1381 mod_timer(&phba->hb_tmofunc,
1383 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1385 mod_timer(&phba->hb_tmofunc,
1387 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1390 spin_unlock_irq(&phba->pport->work_port_lock);
1392 if (phba->elsbuf_cnt &&
1393 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1394 spin_lock_irq(&phba->hbalock);
1395 list_splice_init(&phba->elsbuf, &completions);
1396 phba->elsbuf_cnt = 0;
1397 phba->elsbuf_prev_cnt = 0;
1398 spin_unlock_irq(&phba->hbalock);
1400 while (!list_empty(&completions)) {
1401 list_remove_head(&completions, buf_ptr,
1402 struct lpfc_dmabuf, list);
1403 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1407 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1409 /* If there is no heart beat outstanding, issue a heartbeat command */
1410 if (phba->cfg_enable_hba_heartbeat) {
1411 if (!phba->hb_outstanding) {
1412 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1413 (list_empty(&psli->mboxq))) {
1414 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1417 mod_timer(&phba->hb_tmofunc,
1419 msecs_to_jiffies(1000 *
1420 LPFC_HB_MBOX_INTERVAL));
1424 lpfc_heart_beat(phba, pmboxq);
1425 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1426 pmboxq->vport = phba->pport;
1427 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1430 if (retval != MBX_BUSY &&
1431 retval != MBX_SUCCESS) {
1432 mempool_free(pmboxq,
1433 phba->mbox_mem_pool);
1434 mod_timer(&phba->hb_tmofunc,
1436 msecs_to_jiffies(1000 *
1437 LPFC_HB_MBOX_INTERVAL));
1440 phba->skipped_hb = 0;
1441 phba->hb_outstanding = 1;
1442 } else if (time_before_eq(phba->last_completion_time,
1443 phba->skipped_hb)) {
1444 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1445 "2857 Last completion time not "
1446 " updated in %d ms\n",
1447 jiffies_to_msecs(jiffies
1448 - phba->last_completion_time));
1450 phba->skipped_hb = jiffies;
1452 mod_timer(&phba->hb_tmofunc,
1454 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1458 * If heart beat timeout called with hb_outstanding set
1459 * we need to give the hb mailbox cmd a chance to
1462 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1463 "0459 Adapter heartbeat still out"
1464 "standing:last compl time was %d ms.\n",
1465 jiffies_to_msecs(jiffies
1466 - phba->last_completion_time));
1467 mod_timer(&phba->hb_tmofunc,
1469 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1472 mod_timer(&phba->hb_tmofunc,
1474 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1479 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1480 * @phba: pointer to lpfc hba data structure.
1482 * This routine is called to bring the HBA offline when HBA hardware error
1483 * other than Port Error 6 has been detected.
1486 lpfc_offline_eratt(struct lpfc_hba *phba)
1488 struct lpfc_sli *psli = &phba->sli;
1490 spin_lock_irq(&phba->hbalock);
1491 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1492 spin_unlock_irq(&phba->hbalock);
1493 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1496 lpfc_reset_barrier(phba);
1497 spin_lock_irq(&phba->hbalock);
1498 lpfc_sli_brdreset(phba);
1499 spin_unlock_irq(&phba->hbalock);
1500 lpfc_hba_down_post(phba);
1501 lpfc_sli_brdready(phba, HS_MBRDY);
1502 lpfc_unblock_mgmt_io(phba);
1503 phba->link_state = LPFC_HBA_ERROR;
1508 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1509 * @phba: pointer to lpfc hba data structure.
1511 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1512 * other than Port Error 6 has been detected.
1515 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1517 spin_lock_irq(&phba->hbalock);
1518 phba->link_state = LPFC_HBA_ERROR;
1519 spin_unlock_irq(&phba->hbalock);
1521 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1522 lpfc_sli_flush_io_rings(phba);
1524 lpfc_hba_down_post(phba);
1525 lpfc_unblock_mgmt_io(phba);
1529 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1530 * @phba: pointer to lpfc hba data structure.
1532 * This routine is invoked to handle the deferred HBA hardware error
1533 * conditions. This type of error is indicated by HBA by setting ER1
1534 * and another ER bit in the host status register. The driver will
1535 * wait until the ER1 bit clears before handling the error condition.
1538 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1540 uint32_t old_host_status = phba->work_hs;
1541 struct lpfc_sli *psli = &phba->sli;
1543 /* If the pci channel is offline, ignore possible errors,
1544 * since we cannot communicate with the pci card anyway.
1546 if (pci_channel_offline(phba->pcidev)) {
1547 spin_lock_irq(&phba->hbalock);
1548 phba->hba_flag &= ~DEFER_ERATT;
1549 spin_unlock_irq(&phba->hbalock);
1553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1554 "0479 Deferred Adapter Hardware Error "
1555 "Data: x%x x%x x%x\n",
1557 phba->work_status[0], phba->work_status[1]);
1559 spin_lock_irq(&phba->hbalock);
1560 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1561 spin_unlock_irq(&phba->hbalock);
1565 * Firmware stops when it triggred erratt. That could cause the I/Os
1566 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1567 * SCSI layer retry it after re-establishing link.
1569 lpfc_sli_abort_fcp_rings(phba);
1572 * There was a firmware error. Take the hba offline and then
1573 * attempt to restart it.
1575 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1578 /* Wait for the ER1 bit to clear.*/
1579 while (phba->work_hs & HS_FFER1) {
1581 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1582 phba->work_hs = UNPLUG_ERR ;
1585 /* If driver is unloading let the worker thread continue */
1586 if (phba->pport->load_flag & FC_UNLOADING) {
1593 * This is to ptrotect against a race condition in which
1594 * first write to the host attention register clear the
1595 * host status register.
1597 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1598 phba->work_hs = old_host_status & ~HS_FFER1;
1600 spin_lock_irq(&phba->hbalock);
1601 phba->hba_flag &= ~DEFER_ERATT;
1602 spin_unlock_irq(&phba->hbalock);
1603 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1604 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1608 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1610 struct lpfc_board_event_header board_event;
1611 struct Scsi_Host *shost;
1613 board_event.event_type = FC_REG_BOARD_EVENT;
1614 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1615 shost = lpfc_shost_from_vport(phba->pport);
1616 fc_host_post_vendor_event(shost, fc_get_event_number(),
1617 sizeof(board_event),
1618 (char *) &board_event,
1623 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1624 * @phba: pointer to lpfc hba data structure.
1626 * This routine is invoked to handle the following HBA hardware error
1628 * 1 - HBA error attention interrupt
1629 * 2 - DMA ring index out of range
1630 * 3 - Mailbox command came back as unknown
1633 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1635 struct lpfc_vport *vport = phba->pport;
1636 struct lpfc_sli *psli = &phba->sli;
1637 uint32_t event_data;
1638 unsigned long temperature;
1639 struct temp_event temp_event_data;
1640 struct Scsi_Host *shost;
1642 /* If the pci channel is offline, ignore possible errors,
1643 * since we cannot communicate with the pci card anyway.
1645 if (pci_channel_offline(phba->pcidev)) {
1646 spin_lock_irq(&phba->hbalock);
1647 phba->hba_flag &= ~DEFER_ERATT;
1648 spin_unlock_irq(&phba->hbalock);
1652 /* If resets are disabled then leave the HBA alone and return */
1653 if (!phba->cfg_enable_hba_reset)
1656 /* Send an internal error event to mgmt application */
1657 lpfc_board_errevt_to_mgmt(phba);
1659 if (phba->hba_flag & DEFER_ERATT)
1660 lpfc_handle_deferred_eratt(phba);
1662 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1663 if (phba->work_hs & HS_FFER6)
1664 /* Re-establishing Link */
1665 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1666 "1301 Re-establishing Link "
1667 "Data: x%x x%x x%x\n",
1668 phba->work_hs, phba->work_status[0],
1669 phba->work_status[1]);
1670 if (phba->work_hs & HS_FFER8)
1671 /* Device Zeroization */
1672 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1673 "2861 Host Authentication device "
1674 "zeroization Data:x%x x%x x%x\n",
1675 phba->work_hs, phba->work_status[0],
1676 phba->work_status[1]);
1678 spin_lock_irq(&phba->hbalock);
1679 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1680 spin_unlock_irq(&phba->hbalock);
1683 * Firmware stops when it triggled erratt with HS_FFER6.
1684 * That could cause the I/Os dropped by the firmware.
1685 * Error iocb (I/O) on txcmplq and let the SCSI layer
1686 * retry it after re-establishing link.
1688 lpfc_sli_abort_fcp_rings(phba);
1691 * There was a firmware error. Take the hba offline and then
1692 * attempt to restart it.
1694 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1696 lpfc_sli_brdrestart(phba);
1697 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1698 lpfc_unblock_mgmt_io(phba);
1701 lpfc_unblock_mgmt_io(phba);
1702 } else if (phba->work_hs & HS_CRIT_TEMP) {
1703 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1704 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1705 temp_event_data.event_code = LPFC_CRIT_TEMP;
1706 temp_event_data.data = (uint32_t)temperature;
1708 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1709 "0406 Adapter maximum temperature exceeded "
1710 "(%ld), taking this port offline "
1711 "Data: x%x x%x x%x\n",
1712 temperature, phba->work_hs,
1713 phba->work_status[0], phba->work_status[1]);
1715 shost = lpfc_shost_from_vport(phba->pport);
1716 fc_host_post_vendor_event(shost, fc_get_event_number(),
1717 sizeof(temp_event_data),
1718 (char *) &temp_event_data,
1719 SCSI_NL_VID_TYPE_PCI
1720 | PCI_VENDOR_ID_EMULEX);
1722 spin_lock_irq(&phba->hbalock);
1723 phba->over_temp_state = HBA_OVER_TEMP;
1724 spin_unlock_irq(&phba->hbalock);
1725 lpfc_offline_eratt(phba);
1728 /* The if clause above forces this code path when the status
1729 * failure is a value other than FFER6. Do not call the offline
1730 * twice. This is the adapter hardware error path.
1732 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1733 "0457 Adapter Hardware Error "
1734 "Data: x%x x%x x%x\n",
1736 phba->work_status[0], phba->work_status[1]);
1738 event_data = FC_REG_DUMP_EVENT;
1739 shost = lpfc_shost_from_vport(vport);
1740 fc_host_post_vendor_event(shost, fc_get_event_number(),
1741 sizeof(event_data), (char *) &event_data,
1742 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1744 lpfc_offline_eratt(phba);
1750 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1751 * @phba: pointer to lpfc hba data structure.
1752 * @mbx_action: flag for mailbox shutdown action.
1754 * This routine is invoked to perform an SLI4 port PCI function reset in
1755 * response to port status register polling attention. It waits for port
1756 * status register (ERR, RDY, RN) bits before proceeding with function reset.
1757 * During this process, interrupt vectors are freed and later requested
1758 * for handling possible port resource change.
1761 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1767 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1768 LPFC_SLI_INTF_IF_TYPE_2) {
1770 * On error status condition, driver need to wait for port
1771 * ready before performing reset.
1773 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1778 /* need reset: attempt for port recovery */
1780 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1781 "2887 Reset Needed: Attempting Port "
1783 lpfc_offline_prep(phba, mbx_action);
1784 lpfc_sli_flush_io_rings(phba);
1786 /* release interrupt for possible resource change */
1787 lpfc_sli4_disable_intr(phba);
1788 rc = lpfc_sli_brdrestart(phba);
1790 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1791 "6309 Failed to restart board\n");
1794 /* request and enable interrupt */
1795 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1796 if (intr_mode == LPFC_INTR_ERROR) {
1797 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1798 "3175 Failed to enable interrupt\n");
1801 phba->intr_mode = intr_mode;
1802 rc = lpfc_online(phba);
1804 lpfc_unblock_mgmt_io(phba);
1810 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1811 * @phba: pointer to lpfc hba data structure.
1813 * This routine is invoked to handle the SLI4 HBA hardware error attention
1817 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1819 struct lpfc_vport *vport = phba->pport;
1820 uint32_t event_data;
1821 struct Scsi_Host *shost;
1823 struct lpfc_register portstat_reg = {0};
1824 uint32_t reg_err1, reg_err2;
1825 uint32_t uerrlo_reg, uemasklo_reg;
1826 uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1827 bool en_rn_msg = true;
1828 struct temp_event temp_event_data;
1829 struct lpfc_register portsmphr_reg;
1832 /* If the pci channel is offline, ignore possible errors, since
1833 * we cannot communicate with the pci card anyway.
1835 if (pci_channel_offline(phba->pcidev)) {
1836 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1837 "3166 pci channel is offline\n");
1838 lpfc_sli4_offline_eratt(phba);
1842 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1843 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1845 case LPFC_SLI_INTF_IF_TYPE_0:
1846 pci_rd_rc1 = lpfc_readl(
1847 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1849 pci_rd_rc2 = lpfc_readl(
1850 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1852 /* consider PCI bus read error as pci_channel_offline */
1853 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1855 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1856 lpfc_sli4_offline_eratt(phba);
1859 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1860 "7623 Checking UE recoverable");
1862 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1863 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1864 &portsmphr_reg.word0))
1867 smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1869 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1870 LPFC_PORT_SEM_UE_RECOVERABLE)
1872 /*Sleep for 1Sec, before checking SEMAPHORE */
1876 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1877 "4827 smphr_port_status x%x : Waited %dSec",
1878 smphr_port_status, i);
1880 /* Recoverable UE, reset the HBA device */
1881 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1882 LPFC_PORT_SEM_UE_RECOVERABLE) {
1883 for (i = 0; i < 20; i++) {
1885 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1886 &portsmphr_reg.word0) &&
1887 (LPFC_POST_STAGE_PORT_READY ==
1888 bf_get(lpfc_port_smphr_port_status,
1890 rc = lpfc_sli4_port_sta_fn_reset(phba,
1891 LPFC_MBX_NO_WAIT, en_rn_msg);
1894 lpfc_printf_log(phba,
1896 "4215 Failed to recover UE");
1901 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1902 "7624 Firmware not ready: Failing UE recovery,"
1903 " waited %dSec", i);
1904 phba->link_state = LPFC_HBA_ERROR;
1907 case LPFC_SLI_INTF_IF_TYPE_2:
1908 case LPFC_SLI_INTF_IF_TYPE_6:
1909 pci_rd_rc1 = lpfc_readl(
1910 phba->sli4_hba.u.if_type2.STATUSregaddr,
1911 &portstat_reg.word0);
1912 /* consider PCI bus read error as pci_channel_offline */
1913 if (pci_rd_rc1 == -EIO) {
1914 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1915 "3151 PCI bus read access failure: x%x\n",
1916 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1917 lpfc_sli4_offline_eratt(phba);
1920 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1921 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1922 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1923 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1924 "2889 Port Overtemperature event, "
1925 "taking port offline Data: x%x x%x\n",
1926 reg_err1, reg_err2);
1928 phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1929 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1930 temp_event_data.event_code = LPFC_CRIT_TEMP;
1931 temp_event_data.data = 0xFFFFFFFF;
1933 shost = lpfc_shost_from_vport(phba->pport);
1934 fc_host_post_vendor_event(shost, fc_get_event_number(),
1935 sizeof(temp_event_data),
1936 (char *)&temp_event_data,
1937 SCSI_NL_VID_TYPE_PCI
1938 | PCI_VENDOR_ID_EMULEX);
1940 spin_lock_irq(&phba->hbalock);
1941 phba->over_temp_state = HBA_OVER_TEMP;
1942 spin_unlock_irq(&phba->hbalock);
1943 lpfc_sli4_offline_eratt(phba);
1946 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1947 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1948 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1949 "3143 Port Down: Firmware Update "
1952 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1953 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1954 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1955 "3144 Port Down: Debug Dump\n");
1956 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1957 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1958 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1959 "3145 Port Down: Provisioning\n");
1961 /* If resets are disabled then leave the HBA alone and return */
1962 if (!phba->cfg_enable_hba_reset)
1965 /* Check port status register for function reset */
1966 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1969 /* don't report event on forced debug dump */
1970 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1971 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1976 /* fall through for not able to recover */
1977 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1978 "3152 Unrecoverable error\n");
1979 phba->link_state = LPFC_HBA_ERROR;
1981 case LPFC_SLI_INTF_IF_TYPE_1:
1985 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1986 "3123 Report dump event to upper layer\n");
1987 /* Send an internal error event to mgmt application */
1988 lpfc_board_errevt_to_mgmt(phba);
1990 event_data = FC_REG_DUMP_EVENT;
1991 shost = lpfc_shost_from_vport(vport);
1992 fc_host_post_vendor_event(shost, fc_get_event_number(),
1993 sizeof(event_data), (char *) &event_data,
1994 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1998 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1999 * @phba: pointer to lpfc HBA data structure.
2001 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
2002 * routine from the API jump table function pointer from the lpfc_hba struct.
2006 * Any other value - error.
2009 lpfc_handle_eratt(struct lpfc_hba *phba)
2011 (*phba->lpfc_handle_eratt)(phba);
2015 * lpfc_handle_latt - The HBA link event handler
2016 * @phba: pointer to lpfc hba data structure.
2018 * This routine is invoked from the worker thread to handle a HBA host
2019 * attention link event. SLI3 only.
2022 lpfc_handle_latt(struct lpfc_hba *phba)
2024 struct lpfc_vport *vport = phba->pport;
2025 struct lpfc_sli *psli = &phba->sli;
2027 volatile uint32_t control;
2028 struct lpfc_dmabuf *mp;
2031 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2034 goto lpfc_handle_latt_err_exit;
2037 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2040 goto lpfc_handle_latt_free_pmb;
2043 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2046 goto lpfc_handle_latt_free_mp;
2049 /* Cleanup any outstanding ELS commands */
2050 lpfc_els_flush_all_cmd(phba);
2052 psli->slistat.link_event++;
2053 lpfc_read_topology(phba, pmb, mp);
2054 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2056 /* Block ELS IOCBs until we have processed this mbox command */
2057 phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2058 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2059 if (rc == MBX_NOT_FINISHED) {
2061 goto lpfc_handle_latt_free_mbuf;
2064 /* Clear Link Attention in HA REG */
2065 spin_lock_irq(&phba->hbalock);
2066 writel(HA_LATT, phba->HAregaddr);
2067 readl(phba->HAregaddr); /* flush */
2068 spin_unlock_irq(&phba->hbalock);
2072 lpfc_handle_latt_free_mbuf:
2073 phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2074 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2075 lpfc_handle_latt_free_mp:
2077 lpfc_handle_latt_free_pmb:
2078 mempool_free(pmb, phba->mbox_mem_pool);
2079 lpfc_handle_latt_err_exit:
2080 /* Enable Link attention interrupts */
2081 spin_lock_irq(&phba->hbalock);
2082 psli->sli_flag |= LPFC_PROCESS_LA;
2083 control = readl(phba->HCregaddr);
2084 control |= HC_LAINT_ENA;
2085 writel(control, phba->HCregaddr);
2086 readl(phba->HCregaddr); /* flush */
2088 /* Clear Link Attention in HA REG */
2089 writel(HA_LATT, phba->HAregaddr);
2090 readl(phba->HAregaddr); /* flush */
2091 spin_unlock_irq(&phba->hbalock);
2092 lpfc_linkdown(phba);
2093 phba->link_state = LPFC_HBA_ERROR;
2095 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
2096 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2102 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2103 * @phba: pointer to lpfc hba data structure.
2104 * @vpd: pointer to the vital product data.
2105 * @len: length of the vital product data in bytes.
2107 * This routine parses the Vital Product Data (VPD). The VPD is treated as
2108 * an array of characters. In this routine, the ModelName, ProgramType, and
2109 * ModelDesc, etc. fields of the phba data structure will be populated.
2112 * 0 - pointer to the VPD passed in is NULL
2116 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2118 uint8_t lenlo, lenhi;
2128 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2129 "0455 Vital Product Data: x%x x%x x%x x%x\n",
2130 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2132 while (!finished && (index < (len - 4))) {
2133 switch (vpd[index]) {
2141 i = ((((unsigned short)lenhi) << 8) + lenlo);
2150 Length = ((((unsigned short)lenhi) << 8) + lenlo);
2151 if (Length > len - index)
2152 Length = len - index;
2153 while (Length > 0) {
2154 /* Look for Serial Number */
2155 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2162 phba->SerialNumber[j++] = vpd[index++];
2166 phba->SerialNumber[j] = 0;
2169 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2170 phba->vpd_flag |= VPD_MODEL_DESC;
2177 phba->ModelDesc[j++] = vpd[index++];
2181 phba->ModelDesc[j] = 0;
2184 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2185 phba->vpd_flag |= VPD_MODEL_NAME;
2192 phba->ModelName[j++] = vpd[index++];
2196 phba->ModelName[j] = 0;
2199 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2200 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2207 phba->ProgramType[j++] = vpd[index++];
2211 phba->ProgramType[j] = 0;
2214 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2215 phba->vpd_flag |= VPD_PORT;
2222 if ((phba->sli_rev == LPFC_SLI_REV4) &&
2223 (phba->sli4_hba.pport_name_sta ==
2224 LPFC_SLI4_PPNAME_GET)) {
2228 phba->Port[j++] = vpd[index++];
2232 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2233 (phba->sli4_hba.pport_name_sta ==
2234 LPFC_SLI4_PPNAME_NON))
2261 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2262 * @phba: pointer to lpfc hba data structure.
2263 * @mdp: pointer to the data structure to hold the derived model name.
2264 * @descp: pointer to the data structure to hold the derived description.
2266 * This routine retrieves HBA's description based on its registered PCI device
2267 * ID. The @descp passed into this function points to an array of 256 chars. It
2268 * shall be returned with the model name, maximum speed, and the host bus type.
2269 * The @mdp passed into this function points to an array of 80 chars. When the
2270 * function returns, the @mdp will be filled with the model name.
2273 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2276 uint16_t dev_id = phba->pcidev->device;
2279 int oneConnect = 0; /* default is not a oneConnect */
2284 } m = {"<Unknown>", "", ""};
2286 if (mdp && mdp[0] != '\0'
2287 && descp && descp[0] != '\0')
2290 if (phba->lmt & LMT_64Gb)
2292 else if (phba->lmt & LMT_32Gb)
2294 else if (phba->lmt & LMT_16Gb)
2296 else if (phba->lmt & LMT_10Gb)
2298 else if (phba->lmt & LMT_8Gb)
2300 else if (phba->lmt & LMT_4Gb)
2302 else if (phba->lmt & LMT_2Gb)
2304 else if (phba->lmt & LMT_1Gb)
2312 case PCI_DEVICE_ID_FIREFLY:
2313 m = (typeof(m)){"LP6000", "PCI",
2314 "Obsolete, Unsupported Fibre Channel Adapter"};
2316 case PCI_DEVICE_ID_SUPERFLY:
2317 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2318 m = (typeof(m)){"LP7000", "PCI", ""};
2320 m = (typeof(m)){"LP7000E", "PCI", ""};
2321 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2323 case PCI_DEVICE_ID_DRAGONFLY:
2324 m = (typeof(m)){"LP8000", "PCI",
2325 "Obsolete, Unsupported Fibre Channel Adapter"};
2327 case PCI_DEVICE_ID_CENTAUR:
2328 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2329 m = (typeof(m)){"LP9002", "PCI", ""};
2331 m = (typeof(m)){"LP9000", "PCI", ""};
2332 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2334 case PCI_DEVICE_ID_RFLY:
2335 m = (typeof(m)){"LP952", "PCI",
2336 "Obsolete, Unsupported Fibre Channel Adapter"};
2338 case PCI_DEVICE_ID_PEGASUS:
2339 m = (typeof(m)){"LP9802", "PCI-X",
2340 "Obsolete, Unsupported Fibre Channel Adapter"};
2342 case PCI_DEVICE_ID_THOR:
2343 m = (typeof(m)){"LP10000", "PCI-X",
2344 "Obsolete, Unsupported Fibre Channel Adapter"};
2346 case PCI_DEVICE_ID_VIPER:
2347 m = (typeof(m)){"LPX1000", "PCI-X",
2348 "Obsolete, Unsupported Fibre Channel Adapter"};
2350 case PCI_DEVICE_ID_PFLY:
2351 m = (typeof(m)){"LP982", "PCI-X",
2352 "Obsolete, Unsupported Fibre Channel Adapter"};
2354 case PCI_DEVICE_ID_TFLY:
2355 m = (typeof(m)){"LP1050", "PCI-X",
2356 "Obsolete, Unsupported Fibre Channel Adapter"};
2358 case PCI_DEVICE_ID_HELIOS:
2359 m = (typeof(m)){"LP11000", "PCI-X2",
2360 "Obsolete, Unsupported Fibre Channel Adapter"};
2362 case PCI_DEVICE_ID_HELIOS_SCSP:
2363 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2364 "Obsolete, Unsupported Fibre Channel Adapter"};
2366 case PCI_DEVICE_ID_HELIOS_DCSP:
2367 m = (typeof(m)){"LP11002-SP", "PCI-X2",
2368 "Obsolete, Unsupported Fibre Channel Adapter"};
2370 case PCI_DEVICE_ID_NEPTUNE:
2371 m = (typeof(m)){"LPe1000", "PCIe",
2372 "Obsolete, Unsupported Fibre Channel Adapter"};
2374 case PCI_DEVICE_ID_NEPTUNE_SCSP:
2375 m = (typeof(m)){"LPe1000-SP", "PCIe",
2376 "Obsolete, Unsupported Fibre Channel Adapter"};
2378 case PCI_DEVICE_ID_NEPTUNE_DCSP:
2379 m = (typeof(m)){"LPe1002-SP", "PCIe",
2380 "Obsolete, Unsupported Fibre Channel Adapter"};
2382 case PCI_DEVICE_ID_BMID:
2383 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2385 case PCI_DEVICE_ID_BSMB:
2386 m = (typeof(m)){"LP111", "PCI-X2",
2387 "Obsolete, Unsupported Fibre Channel Adapter"};
2389 case PCI_DEVICE_ID_ZEPHYR:
2390 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2392 case PCI_DEVICE_ID_ZEPHYR_SCSP:
2393 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2395 case PCI_DEVICE_ID_ZEPHYR_DCSP:
2396 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2399 case PCI_DEVICE_ID_ZMID:
2400 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2402 case PCI_DEVICE_ID_ZSMB:
2403 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2405 case PCI_DEVICE_ID_LP101:
2406 m = (typeof(m)){"LP101", "PCI-X",
2407 "Obsolete, Unsupported Fibre Channel Adapter"};
2409 case PCI_DEVICE_ID_LP10000S:
2410 m = (typeof(m)){"LP10000-S", "PCI",
2411 "Obsolete, Unsupported Fibre Channel Adapter"};
2413 case PCI_DEVICE_ID_LP11000S:
2414 m = (typeof(m)){"LP11000-S", "PCI-X2",
2415 "Obsolete, Unsupported Fibre Channel Adapter"};
2417 case PCI_DEVICE_ID_LPE11000S:
2418 m = (typeof(m)){"LPe11000-S", "PCIe",
2419 "Obsolete, Unsupported Fibre Channel Adapter"};
2421 case PCI_DEVICE_ID_SAT:
2422 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2424 case PCI_DEVICE_ID_SAT_MID:
2425 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2427 case PCI_DEVICE_ID_SAT_SMB:
2428 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2430 case PCI_DEVICE_ID_SAT_DCSP:
2431 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2433 case PCI_DEVICE_ID_SAT_SCSP:
2434 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2436 case PCI_DEVICE_ID_SAT_S:
2437 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2439 case PCI_DEVICE_ID_HORNET:
2440 m = (typeof(m)){"LP21000", "PCIe",
2441 "Obsolete, Unsupported FCoE Adapter"};
2444 case PCI_DEVICE_ID_PROTEUS_VF:
2445 m = (typeof(m)){"LPev12000", "PCIe IOV",
2446 "Obsolete, Unsupported Fibre Channel Adapter"};
2448 case PCI_DEVICE_ID_PROTEUS_PF:
2449 m = (typeof(m)){"LPev12000", "PCIe IOV",
2450 "Obsolete, Unsupported Fibre Channel Adapter"};
2452 case PCI_DEVICE_ID_PROTEUS_S:
2453 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2454 "Obsolete, Unsupported Fibre Channel Adapter"};
2456 case PCI_DEVICE_ID_TIGERSHARK:
2458 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2460 case PCI_DEVICE_ID_TOMCAT:
2462 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2464 case PCI_DEVICE_ID_FALCON:
2465 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2466 "EmulexSecure Fibre"};
2468 case PCI_DEVICE_ID_BALIUS:
2469 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2470 "Obsolete, Unsupported Fibre Channel Adapter"};
2472 case PCI_DEVICE_ID_LANCER_FC:
2473 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2475 case PCI_DEVICE_ID_LANCER_FC_VF:
2476 m = (typeof(m)){"LPe16000", "PCIe",
2477 "Obsolete, Unsupported Fibre Channel Adapter"};
2479 case PCI_DEVICE_ID_LANCER_FCOE:
2481 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2483 case PCI_DEVICE_ID_LANCER_FCOE_VF:
2485 m = (typeof(m)){"OCe15100", "PCIe",
2486 "Obsolete, Unsupported FCoE"};
2488 case PCI_DEVICE_ID_LANCER_G6_FC:
2489 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2491 case PCI_DEVICE_ID_LANCER_G7_FC:
2492 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2494 case PCI_DEVICE_ID_SKYHAWK:
2495 case PCI_DEVICE_ID_SKYHAWK_VF:
2497 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2500 m = (typeof(m)){"Unknown", "", ""};
2504 if (mdp && mdp[0] == '\0')
2505 snprintf(mdp, 79,"%s", m.name);
2507 * oneConnect hba requires special processing, they are all initiators
2508 * and we put the port number on the end
2510 if (descp && descp[0] == '\0') {
2512 snprintf(descp, 255,
2513 "Emulex OneConnect %s, %s Initiator %s",
2516 else if (max_speed == 0)
2517 snprintf(descp, 255,
2519 m.name, m.bus, m.function);
2521 snprintf(descp, 255,
2522 "Emulex %s %d%s %s %s",
2523 m.name, max_speed, (GE) ? "GE" : "Gb",
2529 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2530 * @phba: pointer to lpfc hba data structure.
2531 * @pring: pointer to a IOCB ring.
2532 * @cnt: the number of IOCBs to be posted to the IOCB ring.
2534 * This routine posts a given number of IOCBs with the associated DMA buffer
2535 * descriptors specified by the cnt argument to the given IOCB ring.
2538 * The number of IOCBs NOT able to be posted to the IOCB ring.
2541 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2544 struct lpfc_iocbq *iocb;
2545 struct lpfc_dmabuf *mp1, *mp2;
2547 cnt += pring->missbufcnt;
2549 /* While there are buffers to post */
2551 /* Allocate buffer for command iocb */
2552 iocb = lpfc_sli_get_iocbq(phba);
2554 pring->missbufcnt = cnt;
2559 /* 2 buffers can be posted per command */
2560 /* Allocate buffer to post */
2561 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2563 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2564 if (!mp1 || !mp1->virt) {
2566 lpfc_sli_release_iocbq(phba, iocb);
2567 pring->missbufcnt = cnt;
2571 INIT_LIST_HEAD(&mp1->list);
2572 /* Allocate buffer to post */
2574 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2576 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2578 if (!mp2 || !mp2->virt) {
2580 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2582 lpfc_sli_release_iocbq(phba, iocb);
2583 pring->missbufcnt = cnt;
2587 INIT_LIST_HEAD(&mp2->list);
2592 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2593 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2594 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2595 icmd->ulpBdeCount = 1;
2598 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2599 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2600 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2602 icmd->ulpBdeCount = 2;
2605 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2608 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2610 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2614 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2618 lpfc_sli_release_iocbq(phba, iocb);
2619 pring->missbufcnt = cnt;
2622 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2624 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2626 pring->missbufcnt = 0;
2631 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2632 * @phba: pointer to lpfc hba data structure.
2634 * This routine posts initial receive IOCB buffers to the ELS ring. The
2635 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2636 * set to 64 IOCBs. SLI3 only.
2639 * 0 - success (currently always success)
2642 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2644 struct lpfc_sli *psli = &phba->sli;
2646 /* Ring 0, ELS / CT buffers */
2647 lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2648 /* Ring 2 - FCP no buffers needed */
2653 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2656 * lpfc_sha_init - Set up initial array of hash table entries
2657 * @HashResultPointer: pointer to an array as hash table.
2659 * This routine sets up the initial values to the array of hash table entries
2663 lpfc_sha_init(uint32_t * HashResultPointer)
2665 HashResultPointer[0] = 0x67452301;
2666 HashResultPointer[1] = 0xEFCDAB89;
2667 HashResultPointer[2] = 0x98BADCFE;
2668 HashResultPointer[3] = 0x10325476;
2669 HashResultPointer[4] = 0xC3D2E1F0;
2673 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2674 * @HashResultPointer: pointer to an initial/result hash table.
2675 * @HashWorkingPointer: pointer to an working hash table.
2677 * This routine iterates an initial hash table pointed by @HashResultPointer
2678 * with the values from the working hash table pointeed by @HashWorkingPointer.
2679 * The results are putting back to the initial hash table, returned through
2680 * the @HashResultPointer as the result hash table.
2683 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2687 uint32_t A, B, C, D, E;
2690 HashWorkingPointer[t] =
2692 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2694 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2695 } while (++t <= 79);
2697 A = HashResultPointer[0];
2698 B = HashResultPointer[1];
2699 C = HashResultPointer[2];
2700 D = HashResultPointer[3];
2701 E = HashResultPointer[4];
2705 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2706 } else if (t < 40) {
2707 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2708 } else if (t < 60) {
2709 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2711 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2713 TEMP += S(5, A) + E + HashWorkingPointer[t];
2719 } while (++t <= 79);
2721 HashResultPointer[0] += A;
2722 HashResultPointer[1] += B;
2723 HashResultPointer[2] += C;
2724 HashResultPointer[3] += D;
2725 HashResultPointer[4] += E;
2730 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2731 * @RandomChallenge: pointer to the entry of host challenge random number array.
2732 * @HashWorking: pointer to the entry of the working hash array.
2734 * This routine calculates the working hash array referred by @HashWorking
2735 * from the challenge random numbers associated with the host, referred by
2736 * @RandomChallenge. The result is put into the entry of the working hash
2737 * array and returned by reference through @HashWorking.
2740 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2742 *HashWorking = (*RandomChallenge ^ *HashWorking);
2746 * lpfc_hba_init - Perform special handling for LC HBA initialization
2747 * @phba: pointer to lpfc hba data structure.
2748 * @hbainit: pointer to an array of unsigned 32-bit integers.
2750 * This routine performs the special handling for LC HBA initialization.
2753 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2756 uint32_t *HashWorking;
2757 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2759 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2763 HashWorking[0] = HashWorking[78] = *pwwnn++;
2764 HashWorking[1] = HashWorking[79] = *pwwnn;
2766 for (t = 0; t < 7; t++)
2767 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2769 lpfc_sha_init(hbainit);
2770 lpfc_sha_iterate(hbainit, HashWorking);
2775 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2776 * @vport: pointer to a virtual N_Port data structure.
2778 * This routine performs the necessary cleanups before deleting the @vport.
2779 * It invokes the discovery state machine to perform necessary state
2780 * transitions and to release the ndlps associated with the @vport. Note,
2781 * the physical port is treated as @vport 0.
2784 lpfc_cleanup(struct lpfc_vport *vport)
2786 struct lpfc_hba *phba = vport->phba;
2787 struct lpfc_nodelist *ndlp, *next_ndlp;
2790 if (phba->link_state > LPFC_LINK_DOWN)
2791 lpfc_port_link_failure(vport);
2793 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2794 if (!NLP_CHK_NODE_ACT(ndlp)) {
2795 ndlp = lpfc_enable_node(vport, ndlp,
2796 NLP_STE_UNUSED_NODE);
2799 spin_lock_irq(&phba->ndlp_lock);
2800 NLP_SET_FREE_REQ(ndlp);
2801 spin_unlock_irq(&phba->ndlp_lock);
2802 /* Trigger the release of the ndlp memory */
2806 spin_lock_irq(&phba->ndlp_lock);
2807 if (NLP_CHK_FREE_REQ(ndlp)) {
2808 /* The ndlp should not be in memory free mode already */
2809 spin_unlock_irq(&phba->ndlp_lock);
2812 /* Indicate request for freeing ndlp memory */
2813 NLP_SET_FREE_REQ(ndlp);
2814 spin_unlock_irq(&phba->ndlp_lock);
2816 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2817 ndlp->nlp_DID == Fabric_DID) {
2818 /* Just free up ndlp with Fabric_DID for vports */
2823 /* take care of nodes in unused state before the state
2824 * machine taking action.
2826 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2831 if (ndlp->nlp_type & NLP_FABRIC)
2832 lpfc_disc_state_machine(vport, ndlp, NULL,
2833 NLP_EVT_DEVICE_RECOVERY);
2835 lpfc_disc_state_machine(vport, ndlp, NULL,
2839 /* At this point, ALL ndlp's should be gone
2840 * because of the previous NLP_EVT_DEVICE_RM.
2841 * Lets wait for this to happen, if needed.
2843 while (!list_empty(&vport->fc_nodes)) {
2845 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2846 "0233 Nodelist not empty\n");
2847 list_for_each_entry_safe(ndlp, next_ndlp,
2848 &vport->fc_nodes, nlp_listp) {
2849 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2851 "0282 did:x%x ndlp:x%px "
2852 "usgmap:x%x refcnt:%d\n",
2853 ndlp->nlp_DID, (void *)ndlp,
2855 kref_read(&ndlp->kref));
2860 /* Wait for any activity on ndlps to settle */
2863 lpfc_cleanup_vports_rrqs(vport, NULL);
2867 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2868 * @vport: pointer to a virtual N_Port data structure.
2870 * This routine stops all the timers associated with a @vport. This function
2871 * is invoked before disabling or deleting a @vport. Note that the physical
2872 * port is treated as @vport 0.
2875 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2877 del_timer_sync(&vport->els_tmofunc);
2878 del_timer_sync(&vport->delayed_disc_tmo);
2879 lpfc_can_disctmo(vport);
2884 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2885 * @phba: pointer to lpfc hba data structure.
2887 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2888 * caller of this routine should already hold the host lock.
2891 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2893 /* Clear pending FCF rediscovery wait flag */
2894 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2896 /* Now, try to stop the timer */
2897 del_timer(&phba->fcf.redisc_wait);
2901 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2902 * @phba: pointer to lpfc hba data structure.
2904 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2905 * checks whether the FCF rediscovery wait timer is pending with the host
2906 * lock held before proceeding with disabling the timer and clearing the
2907 * wait timer pendig flag.
2910 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2912 spin_lock_irq(&phba->hbalock);
2913 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2914 /* FCF rediscovery timer already fired or stopped */
2915 spin_unlock_irq(&phba->hbalock);
2918 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2919 /* Clear failover in progress flags */
2920 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2921 spin_unlock_irq(&phba->hbalock);
2925 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2926 * @phba: pointer to lpfc hba data structure.
2928 * This routine stops all the timers associated with a HBA. This function is
2929 * invoked before either putting a HBA offline or unloading the driver.
2932 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2935 lpfc_stop_vport_timers(phba->pport);
2936 cancel_delayed_work_sync(&phba->eq_delay_work);
2937 del_timer_sync(&phba->sli.mbox_tmo);
2938 del_timer_sync(&phba->fabric_block_timer);
2939 del_timer_sync(&phba->eratt_poll);
2940 del_timer_sync(&phba->hb_tmofunc);
2941 if (phba->sli_rev == LPFC_SLI_REV4) {
2942 del_timer_sync(&phba->rrq_tmr);
2943 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2945 phba->hb_outstanding = 0;
2947 switch (phba->pci_dev_grp) {
2948 case LPFC_PCI_DEV_LP:
2949 /* Stop any LightPulse device specific driver timers */
2950 del_timer_sync(&phba->fcp_poll_timer);
2952 case LPFC_PCI_DEV_OC:
2953 /* Stop any OneConnect device specific driver timers */
2954 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2957 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2958 "0297 Invalid device group (x%x)\n",
2966 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2967 * @phba: pointer to lpfc hba data structure.
2969 * This routine marks a HBA's management interface as blocked. Once the HBA's
2970 * management interface is marked as blocked, all the user space access to
2971 * the HBA, whether they are from sysfs interface or libdfc interface will
2972 * all be blocked. The HBA is set to block the management interface when the
2973 * driver prepares the HBA interface for online or offline.
2976 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2978 unsigned long iflag;
2979 uint8_t actcmd = MBX_HEARTBEAT;
2980 unsigned long timeout;
2982 spin_lock_irqsave(&phba->hbalock, iflag);
2983 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2984 spin_unlock_irqrestore(&phba->hbalock, iflag);
2985 if (mbx_action == LPFC_MBX_NO_WAIT)
2987 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2988 spin_lock_irqsave(&phba->hbalock, iflag);
2989 if (phba->sli.mbox_active) {
2990 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2991 /* Determine how long we might wait for the active mailbox
2992 * command to be gracefully completed by firmware.
2994 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2995 phba->sli.mbox_active) * 1000) + jiffies;
2997 spin_unlock_irqrestore(&phba->hbalock, iflag);
2999 /* Wait for the outstnading mailbox command to complete */
3000 while (phba->sli.mbox_active) {
3001 /* Check active mailbox complete status every 2ms */
3003 if (time_after(jiffies, timeout)) {
3004 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3005 "2813 Mgmt IO is Blocked %x "
3006 "- mbox cmd %x still active\n",
3007 phba->sli.sli_flag, actcmd);
3014 * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3015 * @phba: pointer to lpfc hba data structure.
3017 * Allocate RPIs for all active remote nodes. This is needed whenever
3018 * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3019 * is to fixup the temporary rpi assignments.
3022 lpfc_sli4_node_prep(struct lpfc_hba *phba)
3024 struct lpfc_nodelist *ndlp, *next_ndlp;
3025 struct lpfc_vport **vports;
3027 unsigned long flags;
3029 if (phba->sli_rev != LPFC_SLI_REV4)
3032 vports = lpfc_create_vport_work_array(phba);
3036 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3037 if (vports[i]->load_flag & FC_UNLOADING)
3040 list_for_each_entry_safe(ndlp, next_ndlp,
3041 &vports[i]->fc_nodes,
3043 if (!NLP_CHK_NODE_ACT(ndlp))
3045 rpi = lpfc_sli4_alloc_rpi(phba);
3046 if (rpi == LPFC_RPI_ALLOC_ERROR) {
3047 spin_lock_irqsave(&phba->ndlp_lock, flags);
3048 NLP_CLR_NODE_ACT(ndlp);
3049 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3052 ndlp->nlp_rpi = rpi;
3053 lpfc_printf_vlog(ndlp->vport, KERN_INFO,
3054 LOG_NODE | LOG_DISCOVERY,
3055 "0009 Assign RPI x%x to ndlp x%px "
3056 "DID:x%06x flg:x%x map:x%x\n",
3057 ndlp->nlp_rpi, ndlp, ndlp->nlp_DID,
3058 ndlp->nlp_flag, ndlp->nlp_usg_map);
3061 lpfc_destroy_vport_work_array(phba, vports);
3065 * lpfc_create_expedite_pool - create expedite pool
3066 * @phba: pointer to lpfc hba data structure.
3068 * This routine moves a batch of XRIs from lpfc_io_buf_list_put of HWQ 0
3069 * to expedite pool. Mark them as expedite.
3071 static void lpfc_create_expedite_pool(struct lpfc_hba *phba)
3073 struct lpfc_sli4_hdw_queue *qp;
3074 struct lpfc_io_buf *lpfc_ncmd;
3075 struct lpfc_io_buf *lpfc_ncmd_next;
3076 struct lpfc_epd_pool *epd_pool;
3077 unsigned long iflag;
3079 epd_pool = &phba->epd_pool;
3080 qp = &phba->sli4_hba.hdwq[0];
3082 spin_lock_init(&epd_pool->lock);
3083 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3084 spin_lock(&epd_pool->lock);
3085 INIT_LIST_HEAD(&epd_pool->list);
3086 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3087 &qp->lpfc_io_buf_list_put, list) {
3088 list_move_tail(&lpfc_ncmd->list, &epd_pool->list);
3089 lpfc_ncmd->expedite = true;
3092 if (epd_pool->count >= XRI_BATCH)
3095 spin_unlock(&epd_pool->lock);
3096 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3100 * lpfc_destroy_expedite_pool - destroy expedite pool
3101 * @phba: pointer to lpfc hba data structure.
3103 * This routine returns XRIs from expedite pool to lpfc_io_buf_list_put
3104 * of HWQ 0. Clear the mark.
3106 static void lpfc_destroy_expedite_pool(struct lpfc_hba *phba)
3108 struct lpfc_sli4_hdw_queue *qp;
3109 struct lpfc_io_buf *lpfc_ncmd;
3110 struct lpfc_io_buf *lpfc_ncmd_next;
3111 struct lpfc_epd_pool *epd_pool;
3112 unsigned long iflag;
3114 epd_pool = &phba->epd_pool;
3115 qp = &phba->sli4_hba.hdwq[0];
3117 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3118 spin_lock(&epd_pool->lock);
3119 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3120 &epd_pool->list, list) {
3121 list_move_tail(&lpfc_ncmd->list,
3122 &qp->lpfc_io_buf_list_put);
3123 lpfc_ncmd->flags = false;
3127 spin_unlock(&epd_pool->lock);
3128 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3132 * lpfc_create_multixri_pools - create multi-XRI pools
3133 * @phba: pointer to lpfc hba data structure.
3135 * This routine initialize public, private per HWQ. Then, move XRIs from
3136 * lpfc_io_buf_list_put to public pool. High and low watermark are also
3139 void lpfc_create_multixri_pools(struct lpfc_hba *phba)
3144 struct lpfc_io_buf *lpfc_ncmd;
3145 struct lpfc_io_buf *lpfc_ncmd_next;
3146 unsigned long iflag;
3147 struct lpfc_sli4_hdw_queue *qp;
3148 struct lpfc_multixri_pool *multixri_pool;
3149 struct lpfc_pbl_pool *pbl_pool;
3150 struct lpfc_pvt_pool *pvt_pool;
3152 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3153 "1234 num_hdw_queue=%d num_present_cpu=%d common_xri_cnt=%d\n",
3154 phba->cfg_hdw_queue, phba->sli4_hba.num_present_cpu,
3155 phba->sli4_hba.io_xri_cnt);
3157 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3158 lpfc_create_expedite_pool(phba);
3160 hwq_count = phba->cfg_hdw_queue;
3161 count_per_hwq = phba->sli4_hba.io_xri_cnt / hwq_count;
3163 for (i = 0; i < hwq_count; i++) {
3164 multixri_pool = kzalloc(sizeof(*multixri_pool), GFP_KERNEL);
3166 if (!multixri_pool) {
3167 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3168 "1238 Failed to allocate memory for "
3171 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3172 lpfc_destroy_expedite_pool(phba);
3176 qp = &phba->sli4_hba.hdwq[j];
3177 kfree(qp->p_multixri_pool);
3180 phba->cfg_xri_rebalancing = 0;
3184 qp = &phba->sli4_hba.hdwq[i];
3185 qp->p_multixri_pool = multixri_pool;
3187 multixri_pool->xri_limit = count_per_hwq;
3188 multixri_pool->rrb_next_hwqid = i;
3190 /* Deal with public free xri pool */
3191 pbl_pool = &multixri_pool->pbl_pool;
3192 spin_lock_init(&pbl_pool->lock);
3193 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3194 spin_lock(&pbl_pool->lock);
3195 INIT_LIST_HEAD(&pbl_pool->list);
3196 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3197 &qp->lpfc_io_buf_list_put, list) {
3198 list_move_tail(&lpfc_ncmd->list, &pbl_pool->list);
3202 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3203 "1235 Moved %d buffers from PUT list over to pbl_pool[%d]\n",
3204 pbl_pool->count, i);
3205 spin_unlock(&pbl_pool->lock);
3206 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3208 /* Deal with private free xri pool */
3209 pvt_pool = &multixri_pool->pvt_pool;
3210 pvt_pool->high_watermark = multixri_pool->xri_limit / 2;
3211 pvt_pool->low_watermark = XRI_BATCH;
3212 spin_lock_init(&pvt_pool->lock);
3213 spin_lock_irqsave(&pvt_pool->lock, iflag);
3214 INIT_LIST_HEAD(&pvt_pool->list);
3215 pvt_pool->count = 0;
3216 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
3221 * lpfc_destroy_multixri_pools - destroy multi-XRI pools
3222 * @phba: pointer to lpfc hba data structure.
3224 * This routine returns XRIs from public/private to lpfc_io_buf_list_put.
3226 static void lpfc_destroy_multixri_pools(struct lpfc_hba *phba)
3230 struct lpfc_io_buf *lpfc_ncmd;
3231 struct lpfc_io_buf *lpfc_ncmd_next;
3232 unsigned long iflag;
3233 struct lpfc_sli4_hdw_queue *qp;
3234 struct lpfc_multixri_pool *multixri_pool;
3235 struct lpfc_pbl_pool *pbl_pool;
3236 struct lpfc_pvt_pool *pvt_pool;
3238 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3239 lpfc_destroy_expedite_pool(phba);
3241 if (!(phba->pport->load_flag & FC_UNLOADING))
3242 lpfc_sli_flush_io_rings(phba);
3244 hwq_count = phba->cfg_hdw_queue;
3246 for (i = 0; i < hwq_count; i++) {
3247 qp = &phba->sli4_hba.hdwq[i];
3248 multixri_pool = qp->p_multixri_pool;
3252 qp->p_multixri_pool = NULL;
3254 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3256 /* Deal with public free xri pool */
3257 pbl_pool = &multixri_pool->pbl_pool;
3258 spin_lock(&pbl_pool->lock);
3260 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3261 "1236 Moving %d buffers from pbl_pool[%d] TO PUT list\n",
3262 pbl_pool->count, i);
3264 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3265 &pbl_pool->list, list) {
3266 list_move_tail(&lpfc_ncmd->list,
3267 &qp->lpfc_io_buf_list_put);
3272 INIT_LIST_HEAD(&pbl_pool->list);
3273 pbl_pool->count = 0;
3275 spin_unlock(&pbl_pool->lock);
3277 /* Deal with private free xri pool */
3278 pvt_pool = &multixri_pool->pvt_pool;
3279 spin_lock(&pvt_pool->lock);
3281 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3282 "1237 Moving %d buffers from pvt_pool[%d] TO PUT list\n",
3283 pvt_pool->count, i);
3285 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3286 &pvt_pool->list, list) {
3287 list_move_tail(&lpfc_ncmd->list,
3288 &qp->lpfc_io_buf_list_put);
3293 INIT_LIST_HEAD(&pvt_pool->list);
3294 pvt_pool->count = 0;
3296 spin_unlock(&pvt_pool->lock);
3297 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3299 kfree(multixri_pool);
3304 * lpfc_online - Initialize and bring a HBA online
3305 * @phba: pointer to lpfc hba data structure.
3307 * This routine initializes the HBA and brings a HBA online. During this
3308 * process, the management interface is blocked to prevent user space access
3309 * to the HBA interfering with the driver initialization.
3316 lpfc_online(struct lpfc_hba *phba)
3318 struct lpfc_vport *vport;
3319 struct lpfc_vport **vports;
3321 bool vpis_cleared = false;
3325 vport = phba->pport;
3327 if (!(vport->fc_flag & FC_OFFLINE_MODE))
3330 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3331 "0458 Bring Adapter online\n");
3333 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3335 if (phba->sli_rev == LPFC_SLI_REV4) {
3336 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3337 lpfc_unblock_mgmt_io(phba);
3340 spin_lock_irq(&phba->hbalock);
3341 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3342 vpis_cleared = true;
3343 spin_unlock_irq(&phba->hbalock);
3345 /* Reestablish the local initiator port.
3346 * The offline process destroyed the previous lport.
3348 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3349 !phba->nvmet_support) {
3350 error = lpfc_nvme_create_localport(phba->pport);
3352 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3353 "6132 NVME restore reg failed "
3354 "on nvmei error x%x\n", error);
3357 lpfc_sli_queue_init(phba);
3358 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3359 lpfc_unblock_mgmt_io(phba);
3364 vports = lpfc_create_vport_work_array(phba);
3365 if (vports != NULL) {
3366 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3367 struct Scsi_Host *shost;
3368 shost = lpfc_shost_from_vport(vports[i]);
3369 spin_lock_irq(shost->host_lock);
3370 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3371 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3372 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3373 if (phba->sli_rev == LPFC_SLI_REV4) {
3374 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3375 if ((vpis_cleared) &&
3376 (vports[i]->port_type !=
3377 LPFC_PHYSICAL_PORT))
3380 spin_unlock_irq(shost->host_lock);
3383 lpfc_destroy_vport_work_array(phba, vports);
3385 if (phba->cfg_xri_rebalancing)
3386 lpfc_create_multixri_pools(phba);
3388 lpfc_cpuhp_add(phba);
3390 lpfc_unblock_mgmt_io(phba);
3395 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3396 * @phba: pointer to lpfc hba data structure.
3398 * This routine marks a HBA's management interface as not blocked. Once the
3399 * HBA's management interface is marked as not blocked, all the user space
3400 * access to the HBA, whether they are from sysfs interface or libdfc
3401 * interface will be allowed. The HBA is set to block the management interface
3402 * when the driver prepares the HBA interface for online or offline and then
3403 * set to unblock the management interface afterwards.
3406 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3408 unsigned long iflag;
3410 spin_lock_irqsave(&phba->hbalock, iflag);
3411 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3412 spin_unlock_irqrestore(&phba->hbalock, iflag);
3416 * lpfc_offline_prep - Prepare a HBA to be brought offline
3417 * @phba: pointer to lpfc hba data structure.
3419 * This routine is invoked to prepare a HBA to be brought offline. It performs
3420 * unregistration login to all the nodes on all vports and flushes the mailbox
3421 * queue to make it ready to be brought offline.
3424 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3426 struct lpfc_vport *vport = phba->pport;
3427 struct lpfc_nodelist *ndlp, *next_ndlp;
3428 struct lpfc_vport **vports;
3429 struct Scsi_Host *shost;
3432 if (vport->fc_flag & FC_OFFLINE_MODE)
3435 lpfc_block_mgmt_io(phba, mbx_action);
3437 lpfc_linkdown(phba);
3439 /* Issue an unreg_login to all nodes on all vports */
3440 vports = lpfc_create_vport_work_array(phba);
3441 if (vports != NULL) {
3442 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3443 if (vports[i]->load_flag & FC_UNLOADING)
3445 shost = lpfc_shost_from_vport(vports[i]);
3446 spin_lock_irq(shost->host_lock);
3447 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3448 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3449 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3450 spin_unlock_irq(shost->host_lock);
3452 shost = lpfc_shost_from_vport(vports[i]);
3453 list_for_each_entry_safe(ndlp, next_ndlp,
3454 &vports[i]->fc_nodes,
3456 if ((!NLP_CHK_NODE_ACT(ndlp)) ||
3457 ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
3458 /* Driver must assume RPI is invalid for
3459 * any unused or inactive node.
3461 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
3465 if (ndlp->nlp_type & NLP_FABRIC) {
3466 lpfc_disc_state_machine(vports[i], ndlp,
3467 NULL, NLP_EVT_DEVICE_RECOVERY);
3468 lpfc_disc_state_machine(vports[i], ndlp,
3469 NULL, NLP_EVT_DEVICE_RM);
3471 spin_lock_irq(shost->host_lock);
3472 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3473 spin_unlock_irq(shost->host_lock);
3475 * Whenever an SLI4 port goes offline, free the
3476 * RPI. Get a new RPI when the adapter port
3477 * comes back online.
3479 if (phba->sli_rev == LPFC_SLI_REV4) {
3480 lpfc_printf_vlog(ndlp->vport, KERN_INFO,
3481 LOG_NODE | LOG_DISCOVERY,
3482 "0011 Free RPI x%x on "
3483 "ndlp:x%px did x%x "
3485 ndlp->nlp_rpi, ndlp,
3488 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3489 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
3491 lpfc_unreg_rpi(vports[i], ndlp);
3495 lpfc_destroy_vport_work_array(phba, vports);
3497 lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3500 flush_workqueue(phba->wq);
3504 * lpfc_offline - Bring a HBA offline
3505 * @phba: pointer to lpfc hba data structure.
3507 * This routine actually brings a HBA offline. It stops all the timers
3508 * associated with the HBA, brings down the SLI layer, and eventually
3509 * marks the HBA as in offline state for the upper layer protocol.
3512 lpfc_offline(struct lpfc_hba *phba)
3514 struct Scsi_Host *shost;
3515 struct lpfc_vport **vports;
3518 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3521 /* stop port and all timers associated with this hba */
3522 lpfc_stop_port(phba);
3524 /* Tear down the local and target port registrations. The
3525 * nvme transports need to cleanup.
3527 lpfc_nvmet_destroy_targetport(phba);
3528 lpfc_nvme_destroy_localport(phba->pport);
3530 vports = lpfc_create_vport_work_array(phba);
3532 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3533 lpfc_stop_vport_timers(vports[i]);
3534 lpfc_destroy_vport_work_array(phba, vports);
3535 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3536 "0460 Bring Adapter offline\n");
3537 /* Bring down the SLI Layer and cleanup. The HBA is offline
3539 lpfc_sli_hba_down(phba);
3540 spin_lock_irq(&phba->hbalock);
3542 spin_unlock_irq(&phba->hbalock);
3543 vports = lpfc_create_vport_work_array(phba);
3545 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3546 shost = lpfc_shost_from_vport(vports[i]);
3547 spin_lock_irq(shost->host_lock);
3548 vports[i]->work_port_events = 0;
3549 vports[i]->fc_flag |= FC_OFFLINE_MODE;
3550 spin_unlock_irq(shost->host_lock);
3552 lpfc_destroy_vport_work_array(phba, vports);
3553 __lpfc_cpuhp_remove(phba);
3555 if (phba->cfg_xri_rebalancing)
3556 lpfc_destroy_multixri_pools(phba);
3560 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3561 * @phba: pointer to lpfc hba data structure.
3563 * This routine is to free all the SCSI buffers and IOCBs from the driver
3564 * list back to kernel. It is called from lpfc_pci_remove_one to free
3565 * the internal resources before the device is removed from the system.
3568 lpfc_scsi_free(struct lpfc_hba *phba)
3570 struct lpfc_io_buf *sb, *sb_next;
3572 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3575 spin_lock_irq(&phba->hbalock);
3577 /* Release all the lpfc_scsi_bufs maintained by this host. */
3579 spin_lock(&phba->scsi_buf_list_put_lock);
3580 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3582 list_del(&sb->list);
3583 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3586 phba->total_scsi_bufs--;
3588 spin_unlock(&phba->scsi_buf_list_put_lock);
3590 spin_lock(&phba->scsi_buf_list_get_lock);
3591 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3593 list_del(&sb->list);
3594 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3597 phba->total_scsi_bufs--;
3599 spin_unlock(&phba->scsi_buf_list_get_lock);
3600 spin_unlock_irq(&phba->hbalock);
3604 * lpfc_io_free - Free all the IO buffers and IOCBs from driver lists
3605 * @phba: pointer to lpfc hba data structure.
3607 * This routine is to free all the IO buffers and IOCBs from the driver
3608 * list back to kernel. It is called from lpfc_pci_remove_one to free
3609 * the internal resources before the device is removed from the system.
3612 lpfc_io_free(struct lpfc_hba *phba)
3614 struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
3615 struct lpfc_sli4_hdw_queue *qp;
3618 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3619 qp = &phba->sli4_hba.hdwq[idx];
3620 /* Release all the lpfc_nvme_bufs maintained by this host. */
3621 spin_lock(&qp->io_buf_list_put_lock);
3622 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3623 &qp->lpfc_io_buf_list_put,
3625 list_del(&lpfc_ncmd->list);
3627 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3628 lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3629 if (phba->cfg_xpsgl && !phba->nvmet_support)
3630 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3631 lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3633 qp->total_io_bufs--;
3635 spin_unlock(&qp->io_buf_list_put_lock);
3637 spin_lock(&qp->io_buf_list_get_lock);
3638 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3639 &qp->lpfc_io_buf_list_get,
3641 list_del(&lpfc_ncmd->list);
3643 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3644 lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3645 if (phba->cfg_xpsgl && !phba->nvmet_support)
3646 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3647 lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3649 qp->total_io_bufs--;
3651 spin_unlock(&qp->io_buf_list_get_lock);
3656 * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3657 * @phba: pointer to lpfc hba data structure.
3659 * This routine first calculates the sizes of the current els and allocated
3660 * scsi sgl lists, and then goes through all sgls to updates the physical
3661 * XRIs assigned due to port function reset. During port initialization, the
3662 * current els and allocated scsi sgl lists are 0s.
3665 * 0 - successful (for now, it always returns 0)
3668 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3670 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3671 uint16_t i, lxri, xri_cnt, els_xri_cnt;
3672 LIST_HEAD(els_sgl_list);
3676 * update on pci function's els xri-sgl list
3678 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3680 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3681 /* els xri-sgl expanded */
3682 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3683 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3684 "3157 ELS xri-sgl count increased from "
3685 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3687 /* allocate the additional els sgls */
3688 for (i = 0; i < xri_cnt; i++) {
3689 sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3691 if (sglq_entry == NULL) {
3692 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3693 "2562 Failure to allocate an "
3694 "ELS sgl entry:%d\n", i);
3698 sglq_entry->buff_type = GEN_BUFF_TYPE;
3699 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3701 if (sglq_entry->virt == NULL) {
3703 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3704 "2563 Failure to allocate an "
3705 "ELS mbuf:%d\n", i);
3709 sglq_entry->sgl = sglq_entry->virt;
3710 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3711 sglq_entry->state = SGL_FREED;
3712 list_add_tail(&sglq_entry->list, &els_sgl_list);
3714 spin_lock_irq(&phba->hbalock);
3715 spin_lock(&phba->sli4_hba.sgl_list_lock);
3716 list_splice_init(&els_sgl_list,
3717 &phba->sli4_hba.lpfc_els_sgl_list);
3718 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3719 spin_unlock_irq(&phba->hbalock);
3720 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3721 /* els xri-sgl shrinked */
3722 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3723 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3724 "3158 ELS xri-sgl count decreased from "
3725 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3727 spin_lock_irq(&phba->hbalock);
3728 spin_lock(&phba->sli4_hba.sgl_list_lock);
3729 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3731 /* release extra els sgls from list */
3732 for (i = 0; i < xri_cnt; i++) {
3733 list_remove_head(&els_sgl_list,
3734 sglq_entry, struct lpfc_sglq, list);
3736 __lpfc_mbuf_free(phba, sglq_entry->virt,
3741 list_splice_init(&els_sgl_list,
3742 &phba->sli4_hba.lpfc_els_sgl_list);
3743 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3744 spin_unlock_irq(&phba->hbalock);
3746 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3747 "3163 ELS xri-sgl count unchanged: %d\n",
3749 phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3751 /* update xris to els sgls on the list */
3753 sglq_entry_next = NULL;
3754 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3755 &phba->sli4_hba.lpfc_els_sgl_list, list) {
3756 lxri = lpfc_sli4_next_xritag(phba);
3757 if (lxri == NO_XRI) {
3758 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3759 "2400 Failed to allocate xri for "
3764 sglq_entry->sli4_lxritag = lxri;
3765 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3770 lpfc_free_els_sgl_list(phba);
3775 * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3776 * @phba: pointer to lpfc hba data structure.
3778 * This routine first calculates the sizes of the current els and allocated
3779 * scsi sgl lists, and then goes through all sgls to updates the physical
3780 * XRIs assigned due to port function reset. During port initialization, the
3781 * current els and allocated scsi sgl lists are 0s.
3784 * 0 - successful (for now, it always returns 0)
3787 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
3789 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3790 uint16_t i, lxri, xri_cnt, els_xri_cnt;
3791 uint16_t nvmet_xri_cnt;
3792 LIST_HEAD(nvmet_sgl_list);
3796 * update on pci function's nvmet xri-sgl list
3798 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3800 /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
3801 nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3802 if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
3803 /* els xri-sgl expanded */
3804 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
3805 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3806 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
3807 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
3808 /* allocate the additional nvmet sgls */
3809 for (i = 0; i < xri_cnt; i++) {
3810 sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3812 if (sglq_entry == NULL) {
3813 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3814 "6303 Failure to allocate an "
3815 "NVMET sgl entry:%d\n", i);
3819 sglq_entry->buff_type = NVMET_BUFF_TYPE;
3820 sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
3822 if (sglq_entry->virt == NULL) {
3824 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3825 "6304 Failure to allocate an "
3826 "NVMET buf:%d\n", i);
3830 sglq_entry->sgl = sglq_entry->virt;
3831 memset(sglq_entry->sgl, 0,
3832 phba->cfg_sg_dma_buf_size);
3833 sglq_entry->state = SGL_FREED;
3834 list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
3836 spin_lock_irq(&phba->hbalock);
3837 spin_lock(&phba->sli4_hba.sgl_list_lock);
3838 list_splice_init(&nvmet_sgl_list,
3839 &phba->sli4_hba.lpfc_nvmet_sgl_list);
3840 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3841 spin_unlock_irq(&phba->hbalock);
3842 } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
3843 /* nvmet xri-sgl shrunk */
3844 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
3845 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3846 "6305 NVMET xri-sgl count decreased from "
3847 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
3849 spin_lock_irq(&phba->hbalock);
3850 spin_lock(&phba->sli4_hba.sgl_list_lock);
3851 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
3853 /* release extra nvmet sgls from list */
3854 for (i = 0; i < xri_cnt; i++) {
3855 list_remove_head(&nvmet_sgl_list,
3856 sglq_entry, struct lpfc_sglq, list);
3858 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
3863 list_splice_init(&nvmet_sgl_list,
3864 &phba->sli4_hba.lpfc_nvmet_sgl_list);
3865 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3866 spin_unlock_irq(&phba->hbalock);
3868 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3869 "6306 NVMET xri-sgl count unchanged: %d\n",
3871 phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
3873 /* update xris to nvmet sgls on the list */
3875 sglq_entry_next = NULL;
3876 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3877 &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
3878 lxri = lpfc_sli4_next_xritag(phba);
3879 if (lxri == NO_XRI) {
3880 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3881 "6307 Failed to allocate xri for "
3886 sglq_entry->sli4_lxritag = lxri;
3887 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3892 lpfc_free_nvmet_sgl_list(phba);
3897 lpfc_io_buf_flush(struct lpfc_hba *phba, struct list_head *cbuf)
3900 struct lpfc_sli4_hdw_queue *qp;
3901 struct lpfc_io_buf *lpfc_cmd;
3902 struct lpfc_io_buf *iobufp, *prev_iobufp;
3903 int idx, cnt, xri, inserted;
3906 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3907 qp = &phba->sli4_hba.hdwq[idx];
3908 spin_lock_irq(&qp->io_buf_list_get_lock);
3909 spin_lock(&qp->io_buf_list_put_lock);
3911 /* Take everything off the get and put lists */
3912 list_splice_init(&qp->lpfc_io_buf_list_get, &blist);
3913 list_splice(&qp->lpfc_io_buf_list_put, &blist);
3914 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
3915 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
3916 cnt += qp->get_io_bufs + qp->put_io_bufs;
3917 qp->get_io_bufs = 0;
3918 qp->put_io_bufs = 0;
3919 qp->total_io_bufs = 0;
3920 spin_unlock(&qp->io_buf_list_put_lock);
3921 spin_unlock_irq(&qp->io_buf_list_get_lock);
3925 * Take IO buffers off blist and put on cbuf sorted by XRI.
3926 * This is because POST_SGL takes a sequential range of XRIs
3927 * to post to the firmware.
3929 for (idx = 0; idx < cnt; idx++) {
3930 list_remove_head(&blist, lpfc_cmd, struct lpfc_io_buf, list);
3934 list_add_tail(&lpfc_cmd->list, cbuf);
3937 xri = lpfc_cmd->cur_iocbq.sli4_xritag;
3940 list_for_each_entry(iobufp, cbuf, list) {
3941 if (xri < iobufp->cur_iocbq.sli4_xritag) {
3943 list_add(&lpfc_cmd->list,
3944 &prev_iobufp->list);
3946 list_add(&lpfc_cmd->list, cbuf);
3950 prev_iobufp = iobufp;
3953 list_add_tail(&lpfc_cmd->list, cbuf);
3959 lpfc_io_buf_replenish(struct lpfc_hba *phba, struct list_head *cbuf)
3961 struct lpfc_sli4_hdw_queue *qp;
3962 struct lpfc_io_buf *lpfc_cmd;
3965 qp = phba->sli4_hba.hdwq;
3967 while (!list_empty(cbuf)) {
3968 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3969 list_remove_head(cbuf, lpfc_cmd,
3970 struct lpfc_io_buf, list);
3974 qp = &phba->sli4_hba.hdwq[idx];
3975 lpfc_cmd->hdwq_no = idx;
3976 lpfc_cmd->hdwq = qp;
3977 lpfc_cmd->cur_iocbq.wqe_cmpl = NULL;
3978 lpfc_cmd->cur_iocbq.iocb_cmpl = NULL;
3979 spin_lock(&qp->io_buf_list_put_lock);
3980 list_add_tail(&lpfc_cmd->list,
3981 &qp->lpfc_io_buf_list_put);
3983 qp->total_io_bufs++;
3984 spin_unlock(&qp->io_buf_list_put_lock);
3991 * lpfc_sli4_io_sgl_update - update xri-sgl sizing and mapping
3992 * @phba: pointer to lpfc hba data structure.
3994 * This routine first calculates the sizes of the current els and allocated
3995 * scsi sgl lists, and then goes through all sgls to updates the physical
3996 * XRIs assigned due to port function reset. During port initialization, the
3997 * current els and allocated scsi sgl lists are 0s.
4000 * 0 - successful (for now, it always returns 0)
4003 lpfc_sli4_io_sgl_update(struct lpfc_hba *phba)
4005 struct lpfc_io_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
4006 uint16_t i, lxri, els_xri_cnt;
4007 uint16_t io_xri_cnt, io_xri_max;
4008 LIST_HEAD(io_sgl_list);
4012 * update on pci function's allocated nvme xri-sgl list
4015 /* maximum number of xris available for nvme buffers */
4016 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4017 io_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4018 phba->sli4_hba.io_xri_max = io_xri_max;
4020 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4021 "6074 Current allocated XRI sgl count:%d, "
4022 "maximum XRI count:%d\n",
4023 phba->sli4_hba.io_xri_cnt,
4024 phba->sli4_hba.io_xri_max);
4026 cnt = lpfc_io_buf_flush(phba, &io_sgl_list);
4028 if (phba->sli4_hba.io_xri_cnt > phba->sli4_hba.io_xri_max) {
4029 /* max nvme xri shrunk below the allocated nvme buffers */
4030 io_xri_cnt = phba->sli4_hba.io_xri_cnt -
4031 phba->sli4_hba.io_xri_max;
4032 /* release the extra allocated nvme buffers */
4033 for (i = 0; i < io_xri_cnt; i++) {
4034 list_remove_head(&io_sgl_list, lpfc_ncmd,
4035 struct lpfc_io_buf, list);
4037 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4039 lpfc_ncmd->dma_handle);
4043 phba->sli4_hba.io_xri_cnt -= io_xri_cnt;
4046 /* update xris associated to remaining allocated nvme buffers */
4048 lpfc_ncmd_next = NULL;
4049 phba->sli4_hba.io_xri_cnt = cnt;
4050 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4051 &io_sgl_list, list) {
4052 lxri = lpfc_sli4_next_xritag(phba);
4053 if (lxri == NO_XRI) {
4054 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4055 "6075 Failed to allocate xri for "
4060 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
4061 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4063 cnt = lpfc_io_buf_replenish(phba, &io_sgl_list);
4072 * lpfc_new_io_buf - IO buffer allocator for HBA with SLI4 IF spec
4073 * @vport: The virtual port for which this call being executed.
4074 * @num_to_allocate: The requested number of buffers to allocate.
4076 * This routine allocates nvme buffers for device with SLI-4 interface spec,
4077 * the nvme buffer contains all the necessary information needed to initiate
4078 * an I/O. After allocating up to @num_to_allocate IO buffers and put
4079 * them on a list, it post them to the port by using SGL block post.
4082 * int - number of IO buffers that were allocated and posted.
4083 * 0 = failure, less than num_to_alloc is a partial failure.
4086 lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc)
4088 struct lpfc_io_buf *lpfc_ncmd;
4089 struct lpfc_iocbq *pwqeq;
4090 uint16_t iotag, lxri = 0;
4091 int bcnt, num_posted;
4092 LIST_HEAD(prep_nblist);
4093 LIST_HEAD(post_nblist);
4094 LIST_HEAD(nvme_nblist);
4096 phba->sli4_hba.io_xri_cnt = 0;
4097 for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
4098 lpfc_ncmd = kzalloc(sizeof(*lpfc_ncmd), GFP_KERNEL);
4102 * Get memory from the pci pool to map the virt space to
4103 * pci bus space for an I/O. The DMA buffer includes the
4104 * number of SGE's necessary to support the sg_tablesize.
4106 lpfc_ncmd->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool,
4108 &lpfc_ncmd->dma_handle);
4109 if (!lpfc_ncmd->data) {
4114 if (phba->cfg_xpsgl && !phba->nvmet_support) {
4115 INIT_LIST_HEAD(&lpfc_ncmd->dma_sgl_xtra_list);
4118 * 4K Page alignment is CRITICAL to BlockGuard, double
4121 if ((phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
4122 (((unsigned long)(lpfc_ncmd->data) &
4123 (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) {
4124 lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
4125 "3369 Memory alignment err: "
4127 (unsigned long)lpfc_ncmd->data);
4128 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4130 lpfc_ncmd->dma_handle);
4136 INIT_LIST_HEAD(&lpfc_ncmd->dma_cmd_rsp_list);
4138 lxri = lpfc_sli4_next_xritag(phba);
4139 if (lxri == NO_XRI) {
4140 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4141 lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4145 pwqeq = &lpfc_ncmd->cur_iocbq;
4147 /* Allocate iotag for lpfc_ncmd->cur_iocbq. */
4148 iotag = lpfc_sli_next_iotag(phba, pwqeq);
4150 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4151 lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4153 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
4154 "6121 Failed to allocate IOTAG for"
4155 " XRI:0x%x\n", lxri);
4156 lpfc_sli4_free_xri(phba, lxri);
4159 pwqeq->sli4_lxritag = lxri;
4160 pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4161 pwqeq->context1 = lpfc_ncmd;
4163 /* Initialize local short-hand pointers. */
4164 lpfc_ncmd->dma_sgl = lpfc_ncmd->data;
4165 lpfc_ncmd->dma_phys_sgl = lpfc_ncmd->dma_handle;
4166 lpfc_ncmd->cur_iocbq.context1 = lpfc_ncmd;
4167 spin_lock_init(&lpfc_ncmd->buf_lock);
4169 /* add the nvme buffer to a post list */
4170 list_add_tail(&lpfc_ncmd->list, &post_nblist);
4171 phba->sli4_hba.io_xri_cnt++;
4173 lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
4174 "6114 Allocate %d out of %d requested new NVME "
4175 "buffers\n", bcnt, num_to_alloc);
4177 /* post the list of nvme buffer sgls to port if available */
4178 if (!list_empty(&post_nblist))
4179 num_posted = lpfc_sli4_post_io_sgl_list(
4180 phba, &post_nblist, bcnt);
4188 lpfc_get_wwpn(struct lpfc_hba *phba)
4192 LPFC_MBOXQ_t *mboxq;
4195 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4198 return (uint64_t)-1;
4200 /* First get WWN of HBA instance */
4201 lpfc_read_nv(phba, mboxq);
4202 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4203 if (rc != MBX_SUCCESS) {
4204 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4205 "6019 Mailbox failed , mbxCmd x%x "
4206 "READ_NV, mbxStatus x%x\n",
4207 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4208 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
4209 mempool_free(mboxq, phba->mbox_mem_pool);
4210 return (uint64_t) -1;
4213 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
4214 /* wwn is WWPN of HBA instance */
4215 mempool_free(mboxq, phba->mbox_mem_pool);
4216 if (phba->sli_rev == LPFC_SLI_REV4)
4217 return be64_to_cpu(wwn);
4219 return rol64(wwn, 32);
4223 * lpfc_create_port - Create an FC port
4224 * @phba: pointer to lpfc hba data structure.
4225 * @instance: a unique integer ID to this FC port.
4226 * @dev: pointer to the device data structure.
4228 * This routine creates a FC port for the upper layer protocol. The FC port
4229 * can be created on top of either a physical port or a virtual port provided
4230 * by the HBA. This routine also allocates a SCSI host data structure (shost)
4231 * and associates the FC port created before adding the shost into the SCSI
4235 * @vport - pointer to the virtual N_Port data structure.
4236 * NULL - port create failed.
4239 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
4241 struct lpfc_vport *vport;
4242 struct Scsi_Host *shost = NULL;
4246 bool use_no_reset_hba = false;
4249 if (lpfc_no_hba_reset_cnt) {
4250 if (phba->sli_rev < LPFC_SLI_REV4 &&
4251 dev == &phba->pcidev->dev) {
4252 /* Reset the port first */
4253 lpfc_sli_brdrestart(phba);
4254 rc = lpfc_sli_chipset_init(phba);
4258 wwn = lpfc_get_wwpn(phba);
4261 for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
4262 if (wwn == lpfc_no_hba_reset[i]) {
4263 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4264 "6020 Setting use_no_reset port=%llx\n",
4266 use_no_reset_hba = true;
4271 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
4272 if (dev != &phba->pcidev->dev) {
4273 shost = scsi_host_alloc(&lpfc_vport_template,
4274 sizeof(struct lpfc_vport));
4276 if (!use_no_reset_hba)
4277 shost = scsi_host_alloc(&lpfc_template,
4278 sizeof(struct lpfc_vport));
4280 shost = scsi_host_alloc(&lpfc_template_no_hr,
4281 sizeof(struct lpfc_vport));
4283 } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
4284 shost = scsi_host_alloc(&lpfc_template_nvme,
4285 sizeof(struct lpfc_vport));
4290 vport = (struct lpfc_vport *) shost->hostdata;
4292 vport->load_flag |= FC_LOADING;
4293 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4294 vport->fc_rscn_flush = 0;
4295 lpfc_get_vport_cfgparam(vport);
4297 /* Adjust value in vport */
4298 vport->cfg_enable_fc4_type = phba->cfg_enable_fc4_type;
4300 shost->unique_id = instance;
4301 shost->max_id = LPFC_MAX_TARGET;
4302 shost->max_lun = vport->cfg_max_luns;
4303 shost->this_id = -1;
4304 shost->max_cmd_len = 16;
4306 if (phba->sli_rev == LPFC_SLI_REV4) {
4307 if (!phba->cfg_fcp_mq_threshold ||
4308 phba->cfg_fcp_mq_threshold > phba->cfg_hdw_queue)
4309 phba->cfg_fcp_mq_threshold = phba->cfg_hdw_queue;
4311 shost->nr_hw_queues = min_t(int, 2 * num_possible_nodes(),
4312 phba->cfg_fcp_mq_threshold);
4314 shost->dma_boundary =
4315 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
4317 if (phba->cfg_xpsgl && !phba->nvmet_support)
4318 shost->sg_tablesize = LPFC_MAX_SG_TABLESIZE;
4320 shost->sg_tablesize = phba->cfg_scsi_seg_cnt;
4322 /* SLI-3 has a limited number of hardware queues (3),
4323 * thus there is only one for FCP processing.
4325 shost->nr_hw_queues = 1;
4328 * Set initial can_queue value since 0 is no longer supported and
4329 * scsi_add_host will fail. This will be adjusted later based on the
4330 * max xri value determined in hba setup.
4332 shost->can_queue = phba->cfg_hba_queue_depth - 10;
4333 if (dev != &phba->pcidev->dev) {
4334 shost->transportt = lpfc_vport_transport_template;
4335 vport->port_type = LPFC_NPIV_PORT;
4337 shost->transportt = lpfc_transport_template;
4338 vport->port_type = LPFC_PHYSICAL_PORT;
4341 /* Initialize all internally managed lists. */
4342 INIT_LIST_HEAD(&vport->fc_nodes);
4343 INIT_LIST_HEAD(&vport->rcv_buffer_list);
4344 spin_lock_init(&vport->work_port_lock);
4346 timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
4348 timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
4350 timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
4352 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4353 lpfc_setup_bg(phba, shost);
4355 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
4359 spin_lock_irq(&phba->port_list_lock);
4360 list_add_tail(&vport->listentry, &phba->port_list);
4361 spin_unlock_irq(&phba->port_list_lock);
4365 scsi_host_put(shost);
4371 * destroy_port - destroy an FC port
4372 * @vport: pointer to an lpfc virtual N_Port data structure.
4374 * This routine destroys a FC port from the upper layer protocol. All the
4375 * resources associated with the port are released.
4378 destroy_port(struct lpfc_vport *vport)
4380 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4381 struct lpfc_hba *phba = vport->phba;
4383 lpfc_debugfs_terminate(vport);
4384 fc_remove_host(shost);
4385 scsi_remove_host(shost);
4387 spin_lock_irq(&phba->port_list_lock);
4388 list_del_init(&vport->listentry);
4389 spin_unlock_irq(&phba->port_list_lock);
4391 lpfc_cleanup(vport);
4396 * lpfc_get_instance - Get a unique integer ID
4398 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4399 * uses the kernel idr facility to perform the task.
4402 * instance - a unique integer ID allocated as the new instance.
4403 * -1 - lpfc get instance failed.
4406 lpfc_get_instance(void)
4410 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4411 return ret < 0 ? -1 : ret;
4415 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4416 * @shost: pointer to SCSI host data structure.
4417 * @time: elapsed time of the scan in jiffies.
4419 * This routine is called by the SCSI layer with a SCSI host to determine
4420 * whether the scan host is finished.
4422 * Note: there is no scan_start function as adapter initialization will have
4423 * asynchronously kicked off the link initialization.
4426 * 0 - SCSI host scan is not over yet.
4427 * 1 - SCSI host scan is over.
4429 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4431 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4432 struct lpfc_hba *phba = vport->phba;
4435 spin_lock_irq(shost->host_lock);
4437 if (vport->load_flag & FC_UNLOADING) {
4441 if (time >= msecs_to_jiffies(30 * 1000)) {
4442 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4443 "0461 Scanning longer than 30 "
4444 "seconds. Continuing initialization\n");
4448 if (time >= msecs_to_jiffies(15 * 1000) &&
4449 phba->link_state <= LPFC_LINK_DOWN) {
4450 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4451 "0465 Link down longer than 15 "
4452 "seconds. Continuing initialization\n");
4457 if (vport->port_state != LPFC_VPORT_READY)
4459 if (vport->num_disc_nodes || vport->fc_prli_sent)
4461 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4463 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4469 spin_unlock_irq(shost->host_lock);
4473 static void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4475 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4476 struct lpfc_hba *phba = vport->phba;
4478 fc_host_supported_speeds(shost) = 0;
4479 if (phba->lmt & LMT_128Gb)
4480 fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4481 if (phba->lmt & LMT_64Gb)
4482 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4483 if (phba->lmt & LMT_32Gb)
4484 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4485 if (phba->lmt & LMT_16Gb)
4486 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4487 if (phba->lmt & LMT_10Gb)
4488 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4489 if (phba->lmt & LMT_8Gb)
4490 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4491 if (phba->lmt & LMT_4Gb)
4492 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4493 if (phba->lmt & LMT_2Gb)
4494 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4495 if (phba->lmt & LMT_1Gb)
4496 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4500 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4501 * @shost: pointer to SCSI host data structure.
4503 * This routine initializes a given SCSI host attributes on a FC port. The
4504 * SCSI host can be either on top of a physical port or a virtual port.
4506 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4508 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4509 struct lpfc_hba *phba = vport->phba;
4511 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
4514 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4515 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4516 fc_host_supported_classes(shost) = FC_COS_CLASS3;
4518 memset(fc_host_supported_fc4s(shost), 0,
4519 sizeof(fc_host_supported_fc4s(shost)));
4520 fc_host_supported_fc4s(shost)[2] = 1;
4521 fc_host_supported_fc4s(shost)[7] = 1;
4523 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4524 sizeof fc_host_symbolic_name(shost));
4526 lpfc_host_supported_speeds_set(shost);
4528 fc_host_maxframe_size(shost) =
4529 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4530 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4532 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4534 /* This value is also unchanging */
4535 memset(fc_host_active_fc4s(shost), 0,
4536 sizeof(fc_host_active_fc4s(shost)));
4537 fc_host_active_fc4s(shost)[2] = 1;
4538 fc_host_active_fc4s(shost)[7] = 1;
4540 fc_host_max_npiv_vports(shost) = phba->max_vpi;
4541 spin_lock_irq(shost->host_lock);
4542 vport->load_flag &= ~FC_LOADING;
4543 spin_unlock_irq(shost->host_lock);
4547 * lpfc_stop_port_s3 - Stop SLI3 device port
4548 * @phba: pointer to lpfc hba data structure.
4550 * This routine is invoked to stop an SLI3 device port, it stops the device
4551 * from generating interrupts and stops the device driver's timers for the
4555 lpfc_stop_port_s3(struct lpfc_hba *phba)
4557 /* Clear all interrupt enable conditions */
4558 writel(0, phba->HCregaddr);
4559 readl(phba->HCregaddr); /* flush */
4560 /* Clear all pending interrupts */
4561 writel(0xffffffff, phba->HAregaddr);
4562 readl(phba->HAregaddr); /* flush */
4564 /* Reset some HBA SLI setup states */
4565 lpfc_stop_hba_timers(phba);
4566 phba->pport->work_port_events = 0;
4570 * lpfc_stop_port_s4 - Stop SLI4 device port
4571 * @phba: pointer to lpfc hba data structure.
4573 * This routine is invoked to stop an SLI4 device port, it stops the device
4574 * from generating interrupts and stops the device driver's timers for the
4578 lpfc_stop_port_s4(struct lpfc_hba *phba)
4580 /* Reset some HBA SLI4 setup states */
4581 lpfc_stop_hba_timers(phba);
4583 phba->pport->work_port_events = 0;
4584 phba->sli4_hba.intr_enable = 0;
4588 * lpfc_stop_port - Wrapper function for stopping hba port
4589 * @phba: Pointer to HBA context object.
4591 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4592 * the API jump table function pointer from the lpfc_hba struct.
4595 lpfc_stop_port(struct lpfc_hba *phba)
4597 phba->lpfc_stop_port(phba);
4600 flush_workqueue(phba->wq);
4604 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4605 * @phba: Pointer to hba for which this call is being executed.
4607 * This routine starts the timer waiting for the FCF rediscovery to complete.
4610 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4612 unsigned long fcf_redisc_wait_tmo =
4613 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4614 /* Start fcf rediscovery wait period timer */
4615 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4616 spin_lock_irq(&phba->hbalock);
4617 /* Allow action to new fcf asynchronous event */
4618 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4619 /* Mark the FCF rediscovery pending state */
4620 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4621 spin_unlock_irq(&phba->hbalock);
4625 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4626 * @ptr: Map to lpfc_hba data structure pointer.
4628 * This routine is invoked when waiting for FCF table rediscover has been
4629 * timed out. If new FCF record(s) has (have) been discovered during the
4630 * wait period, a new FCF event shall be added to the FCOE async event
4631 * list, and then worker thread shall be waked up for processing from the
4632 * worker thread context.
4635 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
4637 struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
4639 /* Don't send FCF rediscovery event if timer cancelled */
4640 spin_lock_irq(&phba->hbalock);
4641 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4642 spin_unlock_irq(&phba->hbalock);
4645 /* Clear FCF rediscovery timer pending flag */
4646 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4647 /* FCF rediscovery event to worker thread */
4648 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4649 spin_unlock_irq(&phba->hbalock);
4650 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4651 "2776 FCF rediscover quiescent timer expired\n");
4652 /* wake up worker thread */
4653 lpfc_worker_wake_up(phba);
4657 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4658 * @phba: pointer to lpfc hba data structure.
4659 * @acqe_link: pointer to the async link completion queue entry.
4661 * This routine is to parse the SLI4 link-attention link fault code.
4664 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4665 struct lpfc_acqe_link *acqe_link)
4667 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4668 case LPFC_ASYNC_LINK_FAULT_NONE:
4669 case LPFC_ASYNC_LINK_FAULT_LOCAL:
4670 case LPFC_ASYNC_LINK_FAULT_REMOTE:
4671 case LPFC_ASYNC_LINK_FAULT_LR_LRR:
4674 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4675 "0398 Unknown link fault code: x%x\n",
4676 bf_get(lpfc_acqe_link_fault, acqe_link));
4682 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4683 * @phba: pointer to lpfc hba data structure.
4684 * @acqe_link: pointer to the async link completion queue entry.
4686 * This routine is to parse the SLI4 link attention type and translate it
4687 * into the base driver's link attention type coding.
4689 * Return: Link attention type in terms of base driver's coding.
4692 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4693 struct lpfc_acqe_link *acqe_link)
4697 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4698 case LPFC_ASYNC_LINK_STATUS_DOWN:
4699 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4700 att_type = LPFC_ATT_LINK_DOWN;
4702 case LPFC_ASYNC_LINK_STATUS_UP:
4703 /* Ignore physical link up events - wait for logical link up */
4704 att_type = LPFC_ATT_RESERVED;
4706 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4707 att_type = LPFC_ATT_LINK_UP;
4710 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4711 "0399 Invalid link attention type: x%x\n",
4712 bf_get(lpfc_acqe_link_status, acqe_link));
4713 att_type = LPFC_ATT_RESERVED;
4720 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4721 * @phba: pointer to lpfc hba data structure.
4723 * This routine is to get an SLI3 FC port's link speed in Mbps.
4725 * Return: link speed in terms of Mbps.
4728 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4730 uint32_t link_speed;
4732 if (!lpfc_is_link_up(phba))
4735 if (phba->sli_rev <= LPFC_SLI_REV3) {
4736 switch (phba->fc_linkspeed) {
4737 case LPFC_LINK_SPEED_1GHZ:
4740 case LPFC_LINK_SPEED_2GHZ:
4743 case LPFC_LINK_SPEED_4GHZ:
4746 case LPFC_LINK_SPEED_8GHZ:
4749 case LPFC_LINK_SPEED_10GHZ:
4752 case LPFC_LINK_SPEED_16GHZ:
4759 if (phba->sli4_hba.link_state.logical_speed)
4761 phba->sli4_hba.link_state.logical_speed;
4763 link_speed = phba->sli4_hba.link_state.speed;
4769 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4770 * @phba: pointer to lpfc hba data structure.
4771 * @evt_code: asynchronous event code.
4772 * @speed_code: asynchronous event link speed code.
4774 * This routine is to parse the giving SLI4 async event link speed code into
4775 * value of Mbps for the link speed.
4777 * Return: link speed in terms of Mbps.
4780 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4783 uint32_t port_speed;
4786 case LPFC_TRAILER_CODE_LINK:
4787 switch (speed_code) {
4788 case LPFC_ASYNC_LINK_SPEED_ZERO:
4791 case LPFC_ASYNC_LINK_SPEED_10MBPS:
4794 case LPFC_ASYNC_LINK_SPEED_100MBPS:
4797 case LPFC_ASYNC_LINK_SPEED_1GBPS:
4800 case LPFC_ASYNC_LINK_SPEED_10GBPS:
4803 case LPFC_ASYNC_LINK_SPEED_20GBPS:
4806 case LPFC_ASYNC_LINK_SPEED_25GBPS:
4809 case LPFC_ASYNC_LINK_SPEED_40GBPS:
4816 case LPFC_TRAILER_CODE_FC:
4817 switch (speed_code) {
4818 case LPFC_FC_LA_SPEED_UNKNOWN:
4821 case LPFC_FC_LA_SPEED_1G:
4824 case LPFC_FC_LA_SPEED_2G:
4827 case LPFC_FC_LA_SPEED_4G:
4830 case LPFC_FC_LA_SPEED_8G:
4833 case LPFC_FC_LA_SPEED_10G:
4836 case LPFC_FC_LA_SPEED_16G:
4839 case LPFC_FC_LA_SPEED_32G:
4842 case LPFC_FC_LA_SPEED_64G:
4845 case LPFC_FC_LA_SPEED_128G:
4846 port_speed = 128000;
4859 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4860 * @phba: pointer to lpfc hba data structure.
4861 * @acqe_link: pointer to the async link completion queue entry.
4863 * This routine is to handle the SLI4 asynchronous FCoE link event.
4866 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4867 struct lpfc_acqe_link *acqe_link)
4869 struct lpfc_dmabuf *mp;
4872 struct lpfc_mbx_read_top *la;
4876 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4877 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4879 phba->fcoe_eventtag = acqe_link->event_tag;
4880 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4882 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4883 "0395 The mboxq allocation failed\n");
4886 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4888 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4889 "0396 The lpfc_dmabuf allocation failed\n");
4892 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4894 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4895 "0397 The mbuf allocation failed\n");
4896 goto out_free_dmabuf;
4899 /* Cleanup any outstanding ELS commands */
4900 lpfc_els_flush_all_cmd(phba);
4902 /* Block ELS IOCBs until we have done process link event */
4903 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4905 /* Update link event statistics */
4906 phba->sli.slistat.link_event++;
4908 /* Create lpfc_handle_latt mailbox command from link ACQE */
4909 lpfc_read_topology(phba, pmb, mp);
4910 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4911 pmb->vport = phba->pport;
4913 /* Keep the link status for extra SLI4 state machine reference */
4914 phba->sli4_hba.link_state.speed =
4915 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
4916 bf_get(lpfc_acqe_link_speed, acqe_link));
4917 phba->sli4_hba.link_state.duplex =
4918 bf_get(lpfc_acqe_link_duplex, acqe_link);
4919 phba->sli4_hba.link_state.status =
4920 bf_get(lpfc_acqe_link_status, acqe_link);
4921 phba->sli4_hba.link_state.type =
4922 bf_get(lpfc_acqe_link_type, acqe_link);
4923 phba->sli4_hba.link_state.number =
4924 bf_get(lpfc_acqe_link_number, acqe_link);
4925 phba->sli4_hba.link_state.fault =
4926 bf_get(lpfc_acqe_link_fault, acqe_link);
4927 phba->sli4_hba.link_state.logical_speed =
4928 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
4930 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4931 "2900 Async FC/FCoE Link event - Speed:%dGBit "
4932 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
4933 "Logical speed:%dMbps Fault:%d\n",
4934 phba->sli4_hba.link_state.speed,
4935 phba->sli4_hba.link_state.topology,
4936 phba->sli4_hba.link_state.status,
4937 phba->sli4_hba.link_state.type,
4938 phba->sli4_hba.link_state.number,
4939 phba->sli4_hba.link_state.logical_speed,
4940 phba->sli4_hba.link_state.fault);
4942 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
4943 * topology info. Note: Optional for non FC-AL ports.
4945 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
4946 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4947 if (rc == MBX_NOT_FINISHED)
4948 goto out_free_dmabuf;
4952 * For FCoE Mode: fill in all the topology information we need and call
4953 * the READ_TOPOLOGY completion routine to continue without actually
4954 * sending the READ_TOPOLOGY mailbox command to the port.
4956 /* Initialize completion status */
4958 mb->mbxStatus = MBX_SUCCESS;
4960 /* Parse port fault information field */
4961 lpfc_sli4_parse_latt_fault(phba, acqe_link);
4963 /* Parse and translate link attention fields */
4964 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4965 la->eventTag = acqe_link->event_tag;
4966 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4967 bf_set(lpfc_mbx_read_top_link_spd, la,
4968 (bf_get(lpfc_acqe_link_speed, acqe_link)));
4970 /* Fake the the following irrelvant fields */
4971 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4972 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4973 bf_set(lpfc_mbx_read_top_il, la, 0);
4974 bf_set(lpfc_mbx_read_top_pb, la, 0);
4975 bf_set(lpfc_mbx_read_top_fa, la, 0);
4976 bf_set(lpfc_mbx_read_top_mm, la, 0);
4978 /* Invoke the lpfc_handle_latt mailbox command callback function */
4979 lpfc_mbx_cmpl_read_topology(phba, pmb);
4986 mempool_free(pmb, phba->mbox_mem_pool);
4990 * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
4992 * @phba: pointer to lpfc hba data structure.
4993 * @evt_code: asynchronous event code.
4994 * @speed_code: asynchronous event link speed code.
4996 * This routine is to parse the giving SLI4 async event link speed code into
4997 * value of Read topology link speed.
4999 * Return: link speed in terms of Read topology.
5002 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
5006 switch (speed_code) {
5007 case LPFC_FC_LA_SPEED_1G:
5008 port_speed = LPFC_LINK_SPEED_1GHZ;
5010 case LPFC_FC_LA_SPEED_2G:
5011 port_speed = LPFC_LINK_SPEED_2GHZ;
5013 case LPFC_FC_LA_SPEED_4G:
5014 port_speed = LPFC_LINK_SPEED_4GHZ;
5016 case LPFC_FC_LA_SPEED_8G:
5017 port_speed = LPFC_LINK_SPEED_8GHZ;
5019 case LPFC_FC_LA_SPEED_16G:
5020 port_speed = LPFC_LINK_SPEED_16GHZ;
5022 case LPFC_FC_LA_SPEED_32G:
5023 port_speed = LPFC_LINK_SPEED_32GHZ;
5025 case LPFC_FC_LA_SPEED_64G:
5026 port_speed = LPFC_LINK_SPEED_64GHZ;
5028 case LPFC_FC_LA_SPEED_128G:
5029 port_speed = LPFC_LINK_SPEED_128GHZ;
5031 case LPFC_FC_LA_SPEED_256G:
5032 port_speed = LPFC_LINK_SPEED_256GHZ;
5042 #define trunk_link_status(__idx)\
5043 bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5044 ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
5045 "Link up" : "Link down") : "NA"
5046 /* Did port __idx reported an error */
5047 #define trunk_port_fault(__idx)\
5048 bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5049 (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
5052 lpfc_update_trunk_link_status(struct lpfc_hba *phba,
5053 struct lpfc_acqe_fc_la *acqe_fc)
5055 uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
5056 uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
5058 phba->sli4_hba.link_state.speed =
5059 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5060 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5062 phba->sli4_hba.link_state.logical_speed =
5063 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5064 /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
5065 phba->fc_linkspeed =
5066 lpfc_async_link_speed_to_read_top(
5068 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5070 if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
5071 phba->trunk_link.link0.state =
5072 bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
5073 ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5074 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
5076 if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
5077 phba->trunk_link.link1.state =
5078 bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
5079 ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5080 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
5082 if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
5083 phba->trunk_link.link2.state =
5084 bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
5085 ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5086 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
5088 if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
5089 phba->trunk_link.link3.state =
5090 bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
5091 ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5092 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
5095 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5096 "2910 Async FC Trunking Event - Speed:%d\n"
5097 "\tLogical speed:%d "
5098 "port0: %s port1: %s port2: %s port3: %s\n",
5099 phba->sli4_hba.link_state.speed,
5100 phba->sli4_hba.link_state.logical_speed,
5101 trunk_link_status(0), trunk_link_status(1),
5102 trunk_link_status(2), trunk_link_status(3));
5105 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5106 "3202 trunk error:0x%x (%s) seen on port0:%s "
5108 * SLI-4: We have only 0xA error codes
5109 * defined as of now. print an appropriate
5110 * message in case driver needs to be updated.
5112 "port1:%s port2:%s port3:%s\n", err, err > 0xA ?
5113 "UNDEFINED. update driver." : trunk_errmsg[err],
5114 trunk_port_fault(0), trunk_port_fault(1),
5115 trunk_port_fault(2), trunk_port_fault(3));
5120 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
5121 * @phba: pointer to lpfc hba data structure.
5122 * @acqe_fc: pointer to the async fc completion queue entry.
5124 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
5125 * that the event was received and then issue a read_topology mailbox command so
5126 * that the rest of the driver will treat it the same as SLI3.
5129 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
5131 struct lpfc_dmabuf *mp;
5134 struct lpfc_mbx_read_top *la;
5137 if (bf_get(lpfc_trailer_type, acqe_fc) !=
5138 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
5139 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5140 "2895 Non FC link Event detected.(%d)\n",
5141 bf_get(lpfc_trailer_type, acqe_fc));
5145 if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5146 LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
5147 lpfc_update_trunk_link_status(phba, acqe_fc);
5151 /* Keep the link status for extra SLI4 state machine reference */
5152 phba->sli4_hba.link_state.speed =
5153 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5154 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5155 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
5156 phba->sli4_hba.link_state.topology =
5157 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
5158 phba->sli4_hba.link_state.status =
5159 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
5160 phba->sli4_hba.link_state.type =
5161 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
5162 phba->sli4_hba.link_state.number =
5163 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
5164 phba->sli4_hba.link_state.fault =
5165 bf_get(lpfc_acqe_link_fault, acqe_fc);
5167 if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5168 LPFC_FC_LA_TYPE_LINK_DOWN)
5169 phba->sli4_hba.link_state.logical_speed = 0;
5170 else if (!phba->sli4_hba.conf_trunk)
5171 phba->sli4_hba.link_state.logical_speed =
5172 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5174 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5175 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
5176 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
5177 "%dMbps Fault:%d\n",
5178 phba->sli4_hba.link_state.speed,
5179 phba->sli4_hba.link_state.topology,
5180 phba->sli4_hba.link_state.status,
5181 phba->sli4_hba.link_state.type,
5182 phba->sli4_hba.link_state.number,
5183 phba->sli4_hba.link_state.logical_speed,
5184 phba->sli4_hba.link_state.fault);
5185 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5187 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5188 "2897 The mboxq allocation failed\n");
5191 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5193 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5194 "2898 The lpfc_dmabuf allocation failed\n");
5197 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
5199 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5200 "2899 The mbuf allocation failed\n");
5201 goto out_free_dmabuf;
5204 /* Cleanup any outstanding ELS commands */
5205 lpfc_els_flush_all_cmd(phba);
5207 /* Block ELS IOCBs until we have done process link event */
5208 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5210 /* Update link event statistics */
5211 phba->sli.slistat.link_event++;
5213 /* Create lpfc_handle_latt mailbox command from link ACQE */
5214 lpfc_read_topology(phba, pmb, mp);
5215 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5216 pmb->vport = phba->pport;
5218 if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
5219 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
5221 switch (phba->sli4_hba.link_state.status) {
5222 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
5223 phba->link_flag |= LS_MDS_LINK_DOWN;
5225 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
5226 phba->link_flag |= LS_MDS_LOOPBACK;
5232 /* Initialize completion status */
5234 mb->mbxStatus = MBX_SUCCESS;
5236 /* Parse port fault information field */
5237 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
5239 /* Parse and translate link attention fields */
5240 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
5241 la->eventTag = acqe_fc->event_tag;
5243 if (phba->sli4_hba.link_state.status ==
5244 LPFC_FC_LA_TYPE_UNEXP_WWPN) {
5245 bf_set(lpfc_mbx_read_top_att_type, la,
5246 LPFC_FC_LA_TYPE_UNEXP_WWPN);
5248 bf_set(lpfc_mbx_read_top_att_type, la,
5249 LPFC_FC_LA_TYPE_LINK_DOWN);
5251 /* Invoke the mailbox command callback function */
5252 lpfc_mbx_cmpl_read_topology(phba, pmb);
5257 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5258 if (rc == MBX_NOT_FINISHED)
5259 goto out_free_dmabuf;
5265 mempool_free(pmb, phba->mbox_mem_pool);
5269 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
5270 * @phba: pointer to lpfc hba data structure.
5271 * @acqe_fc: pointer to the async SLI completion queue entry.
5273 * This routine is to handle the SLI4 asynchronous SLI events.
5276 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
5282 uint8_t operational = 0;
5283 struct temp_event temp_event_data;
5284 struct lpfc_acqe_misconfigured_event *misconfigured;
5285 struct Scsi_Host *shost;
5286 struct lpfc_vport **vports;
5289 evt_type = bf_get(lpfc_trailer_type, acqe_sli);
5291 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5292 "2901 Async SLI event - Type:%d, Event Data: x%08x "
5293 "x%08x x%08x x%08x\n", evt_type,
5294 acqe_sli->event_data1, acqe_sli->event_data2,
5295 acqe_sli->reserved, acqe_sli->trailer);
5297 port_name = phba->Port[0];
5298 if (port_name == 0x00)
5299 port_name = '?'; /* get port name is empty */
5302 case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
5303 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5304 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
5305 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5307 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5308 "3190 Over Temperature:%d Celsius- Port Name %c\n",
5309 acqe_sli->event_data1, port_name);
5311 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
5312 shost = lpfc_shost_from_vport(phba->pport);
5313 fc_host_post_vendor_event(shost, fc_get_event_number(),
5314 sizeof(temp_event_data),
5315 (char *)&temp_event_data,
5316 SCSI_NL_VID_TYPE_PCI
5317 | PCI_VENDOR_ID_EMULEX);
5319 case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
5320 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5321 temp_event_data.event_code = LPFC_NORMAL_TEMP;
5322 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5324 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5325 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
5326 acqe_sli->event_data1, port_name);
5328 shost = lpfc_shost_from_vport(phba->pport);
5329 fc_host_post_vendor_event(shost, fc_get_event_number(),
5330 sizeof(temp_event_data),
5331 (char *)&temp_event_data,
5332 SCSI_NL_VID_TYPE_PCI
5333 | PCI_VENDOR_ID_EMULEX);
5335 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
5336 misconfigured = (struct lpfc_acqe_misconfigured_event *)
5337 &acqe_sli->event_data1;
5339 /* fetch the status for this port */
5340 switch (phba->sli4_hba.lnk_info.lnk_no) {
5341 case LPFC_LINK_NUMBER_0:
5342 status = bf_get(lpfc_sli_misconfigured_port0_state,
5343 &misconfigured->theEvent);
5344 operational = bf_get(lpfc_sli_misconfigured_port0_op,
5345 &misconfigured->theEvent);
5347 case LPFC_LINK_NUMBER_1:
5348 status = bf_get(lpfc_sli_misconfigured_port1_state,
5349 &misconfigured->theEvent);
5350 operational = bf_get(lpfc_sli_misconfigured_port1_op,
5351 &misconfigured->theEvent);
5353 case LPFC_LINK_NUMBER_2:
5354 status = bf_get(lpfc_sli_misconfigured_port2_state,
5355 &misconfigured->theEvent);
5356 operational = bf_get(lpfc_sli_misconfigured_port2_op,
5357 &misconfigured->theEvent);
5359 case LPFC_LINK_NUMBER_3:
5360 status = bf_get(lpfc_sli_misconfigured_port3_state,
5361 &misconfigured->theEvent);
5362 operational = bf_get(lpfc_sli_misconfigured_port3_op,
5363 &misconfigured->theEvent);
5366 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5368 "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
5369 "event: Invalid link %d",
5370 phba->sli4_hba.lnk_info.lnk_no);
5374 /* Skip if optic state unchanged */
5375 if (phba->sli4_hba.lnk_info.optic_state == status)
5379 case LPFC_SLI_EVENT_STATUS_VALID:
5380 sprintf(message, "Physical Link is functional");
5382 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
5383 sprintf(message, "Optics faulted/incorrectly "
5384 "installed/not installed - Reseat optics, "
5385 "if issue not resolved, replace.");
5387 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
5389 "Optics of two types installed - Remove one "
5390 "optic or install matching pair of optics.");
5392 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
5393 sprintf(message, "Incompatible optics - Replace with "
5394 "compatible optics for card to function.");
5396 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
5397 sprintf(message, "Unqualified optics - Replace with "
5398 "Avago optics for Warranty and Technical "
5399 "Support - Link is%s operational",
5400 (operational) ? " not" : "");
5402 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
5403 sprintf(message, "Uncertified optics - Replace with "
5404 "Avago-certified optics to enable link "
5405 "operation - Link is%s operational",
5406 (operational) ? " not" : "");
5409 /* firmware is reporting a status we don't know about */
5410 sprintf(message, "Unknown event status x%02x", status);
5414 /* Issue READ_CONFIG mbox command to refresh supported speeds */
5415 rc = lpfc_sli4_read_config(phba);
5418 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5419 "3194 Unable to retrieve supported "
5420 "speeds, rc = 0x%x\n", rc);
5422 vports = lpfc_create_vport_work_array(phba);
5423 if (vports != NULL) {
5424 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5426 shost = lpfc_shost_from_vport(vports[i]);
5427 lpfc_host_supported_speeds_set(shost);
5430 lpfc_destroy_vport_work_array(phba, vports);
5432 phba->sli4_hba.lnk_info.optic_state = status;
5433 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5434 "3176 Port Name %c %s\n", port_name, message);
5436 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
5437 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5438 "3192 Remote DPort Test Initiated - "
5439 "Event Data1:x%08x Event Data2: x%08x\n",
5440 acqe_sli->event_data1, acqe_sli->event_data2);
5442 case LPFC_SLI_EVENT_TYPE_MISCONF_FAWWN:
5443 /* Misconfigured WWN. Reports that the SLI Port is configured
5444 * to use FA-WWN, but the attached device doesn’t support it.
5445 * No driver action is required.
5446 * Event Data1 - N.A, Event Data2 - N.A
5448 lpfc_log_msg(phba, KERN_WARNING, LOG_SLI,
5449 "2699 Misconfigured FA-WWN - Attached device does "
5450 "not support FA-WWN\n");
5452 case LPFC_SLI_EVENT_TYPE_EEPROM_FAILURE:
5453 /* EEPROM failure. No driver action is required */
5454 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5455 "2518 EEPROM failure - "
5456 "Event Data1: x%08x Event Data2: x%08x\n",
5457 acqe_sli->event_data1, acqe_sli->event_data2);
5460 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5461 "3193 Unrecognized SLI event, type: 0x%x",
5468 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
5469 * @vport: pointer to vport data structure.
5471 * This routine is to perform Clear Virtual Link (CVL) on a vport in
5472 * response to a CVL event.
5474 * Return the pointer to the ndlp with the vport if successful, otherwise
5477 static struct lpfc_nodelist *
5478 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
5480 struct lpfc_nodelist *ndlp;
5481 struct Scsi_Host *shost;
5482 struct lpfc_hba *phba;
5489 ndlp = lpfc_findnode_did(vport, Fabric_DID);
5491 /* Cannot find existing Fabric ndlp, so allocate a new one */
5492 ndlp = lpfc_nlp_init(vport, Fabric_DID);
5495 /* Set the node type */
5496 ndlp->nlp_type |= NLP_FABRIC;
5497 /* Put ndlp onto node list */
5498 lpfc_enqueue_node(vport, ndlp);
5499 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
5500 /* re-setup ndlp without removing from node list */
5501 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
5505 if ((phba->pport->port_state < LPFC_FLOGI) &&
5506 (phba->pport->port_state != LPFC_VPORT_FAILED))
5508 /* If virtual link is not yet instantiated ignore CVL */
5509 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
5510 && (vport->port_state != LPFC_VPORT_FAILED))
5512 shost = lpfc_shost_from_vport(vport);
5515 lpfc_linkdown_port(vport);
5516 lpfc_cleanup_pending_mbox(vport);
5517 spin_lock_irq(shost->host_lock);
5518 vport->fc_flag |= FC_VPORT_CVL_RCVD;
5519 spin_unlock_irq(shost->host_lock);
5525 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
5526 * @vport: pointer to lpfc hba data structure.
5528 * This routine is to perform Clear Virtual Link (CVL) on all vports in
5529 * response to a FCF dead event.
5532 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
5534 struct lpfc_vport **vports;
5537 vports = lpfc_create_vport_work_array(phba);
5539 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
5540 lpfc_sli4_perform_vport_cvl(vports[i]);
5541 lpfc_destroy_vport_work_array(phba, vports);
5545 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
5546 * @phba: pointer to lpfc hba data structure.
5547 * @acqe_link: pointer to the async fcoe completion queue entry.
5549 * This routine is to handle the SLI4 asynchronous fcoe event.
5552 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
5553 struct lpfc_acqe_fip *acqe_fip)
5555 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
5557 struct lpfc_vport *vport;
5558 struct lpfc_nodelist *ndlp;
5559 struct Scsi_Host *shost;
5560 int active_vlink_present;
5561 struct lpfc_vport **vports;
5564 phba->fc_eventTag = acqe_fip->event_tag;
5565 phba->fcoe_eventtag = acqe_fip->event_tag;
5566 switch (event_type) {
5567 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
5568 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
5569 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
5570 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5572 "2546 New FCF event, evt_tag:x%x, "
5574 acqe_fip->event_tag,
5577 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
5579 "2788 FCF param modified event, "
5580 "evt_tag:x%x, index:x%x\n",
5581 acqe_fip->event_tag,
5583 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5585 * During period of FCF discovery, read the FCF
5586 * table record indexed by the event to update
5587 * FCF roundrobin failover eligible FCF bmask.
5589 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5591 "2779 Read FCF (x%x) for updating "
5592 "roundrobin FCF failover bmask\n",
5594 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
5597 /* If the FCF discovery is in progress, do nothing. */
5598 spin_lock_irq(&phba->hbalock);
5599 if (phba->hba_flag & FCF_TS_INPROG) {
5600 spin_unlock_irq(&phba->hbalock);
5603 /* If fast FCF failover rescan event is pending, do nothing */
5604 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
5605 spin_unlock_irq(&phba->hbalock);
5609 /* If the FCF has been in discovered state, do nothing. */
5610 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
5611 spin_unlock_irq(&phba->hbalock);
5614 spin_unlock_irq(&phba->hbalock);
5616 /* Otherwise, scan the entire FCF table and re-discover SAN */
5617 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5618 "2770 Start FCF table scan per async FCF "
5619 "event, evt_tag:x%x, index:x%x\n",
5620 acqe_fip->event_tag, acqe_fip->index);
5621 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
5622 LPFC_FCOE_FCF_GET_FIRST);
5624 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5625 "2547 Issue FCF scan read FCF mailbox "
5626 "command failed (x%x)\n", rc);
5629 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
5630 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5631 "2548 FCF Table full count 0x%x tag 0x%x\n",
5632 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
5633 acqe_fip->event_tag);
5636 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
5637 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5638 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5639 "2549 FCF (x%x) disconnected from network, "
5640 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
5642 * If we are in the middle of FCF failover process, clear
5643 * the corresponding FCF bit in the roundrobin bitmap.
5645 spin_lock_irq(&phba->hbalock);
5646 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
5647 (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
5648 spin_unlock_irq(&phba->hbalock);
5649 /* Update FLOGI FCF failover eligible FCF bmask */
5650 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
5653 spin_unlock_irq(&phba->hbalock);
5655 /* If the event is not for currently used fcf do nothing */
5656 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
5660 * Otherwise, request the port to rediscover the entire FCF
5661 * table for a fast recovery from case that the current FCF
5662 * is no longer valid as we are not in the middle of FCF
5663 * failover process already.
5665 spin_lock_irq(&phba->hbalock);
5666 /* Mark the fast failover process in progress */
5667 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
5668 spin_unlock_irq(&phba->hbalock);
5670 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5671 "2771 Start FCF fast failover process due to "
5672 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
5673 "\n", acqe_fip->event_tag, acqe_fip->index);
5674 rc = lpfc_sli4_redisc_fcf_table(phba);
5676 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5678 "2772 Issue FCF rediscover mailbox "
5679 "command failed, fail through to FCF "
5681 spin_lock_irq(&phba->hbalock);
5682 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
5683 spin_unlock_irq(&phba->hbalock);
5685 * Last resort will fail over by treating this
5686 * as a link down to FCF registration.
5688 lpfc_sli4_fcf_dead_failthrough(phba);
5690 /* Reset FCF roundrobin bmask for new discovery */
5691 lpfc_sli4_clear_fcf_rr_bmask(phba);
5693 * Handling fast FCF failover to a DEAD FCF event is
5694 * considered equalivant to receiving CVL to all vports.
5696 lpfc_sli4_perform_all_vport_cvl(phba);
5699 case LPFC_FIP_EVENT_TYPE_CVL:
5700 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5701 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5702 "2718 Clear Virtual Link Received for VPI 0x%x"
5703 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
5705 vport = lpfc_find_vport_by_vpid(phba,
5707 ndlp = lpfc_sli4_perform_vport_cvl(vport);
5710 active_vlink_present = 0;
5712 vports = lpfc_create_vport_work_array(phba);
5714 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5716 if ((!(vports[i]->fc_flag &
5717 FC_VPORT_CVL_RCVD)) &&
5718 (vports[i]->port_state > LPFC_FDISC)) {
5719 active_vlink_present = 1;
5723 lpfc_destroy_vport_work_array(phba, vports);
5727 * Don't re-instantiate if vport is marked for deletion.
5728 * If we are here first then vport_delete is going to wait
5729 * for discovery to complete.
5731 if (!(vport->load_flag & FC_UNLOADING) &&
5732 active_vlink_present) {
5734 * If there are other active VLinks present,
5735 * re-instantiate the Vlink using FDISC.
5737 mod_timer(&ndlp->nlp_delayfunc,
5738 jiffies + msecs_to_jiffies(1000));
5739 shost = lpfc_shost_from_vport(vport);
5740 spin_lock_irq(shost->host_lock);
5741 ndlp->nlp_flag |= NLP_DELAY_TMO;
5742 spin_unlock_irq(shost->host_lock);
5743 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5744 vport->port_state = LPFC_FDISC;
5747 * Otherwise, we request port to rediscover
5748 * the entire FCF table for a fast recovery
5749 * from possible case that the current FCF
5750 * is no longer valid if we are not already
5751 * in the FCF failover process.
5753 spin_lock_irq(&phba->hbalock);
5754 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5755 spin_unlock_irq(&phba->hbalock);
5758 /* Mark the fast failover process in progress */
5759 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5760 spin_unlock_irq(&phba->hbalock);
5761 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5763 "2773 Start FCF failover per CVL, "
5764 "evt_tag:x%x\n", acqe_fip->event_tag);
5765 rc = lpfc_sli4_redisc_fcf_table(phba);
5767 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5769 "2774 Issue FCF rediscover "
5770 "mailbox command failed, "
5771 "through to CVL event\n");
5772 spin_lock_irq(&phba->hbalock);
5773 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5774 spin_unlock_irq(&phba->hbalock);
5776 * Last resort will be re-try on the
5777 * the current registered FCF entry.
5779 lpfc_retry_pport_discovery(phba);
5782 * Reset FCF roundrobin bmask for new
5785 lpfc_sli4_clear_fcf_rr_bmask(phba);
5789 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5790 "0288 Unknown FCoE event type 0x%x event tag "
5791 "0x%x\n", event_type, acqe_fip->event_tag);
5797 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5798 * @phba: pointer to lpfc hba data structure.
5799 * @acqe_link: pointer to the async dcbx completion queue entry.
5801 * This routine is to handle the SLI4 asynchronous dcbx event.
5804 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5805 struct lpfc_acqe_dcbx *acqe_dcbx)
5807 phba->fc_eventTag = acqe_dcbx->event_tag;
5808 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5809 "0290 The SLI4 DCBX asynchronous event is not "
5814 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5815 * @phba: pointer to lpfc hba data structure.
5816 * @acqe_link: pointer to the async grp5 completion queue entry.
5818 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5819 * is an asynchronous notified of a logical link speed change. The Port
5820 * reports the logical link speed in units of 10Mbps.
5823 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5824 struct lpfc_acqe_grp5 *acqe_grp5)
5826 uint16_t prev_ll_spd;
5828 phba->fc_eventTag = acqe_grp5->event_tag;
5829 phba->fcoe_eventtag = acqe_grp5->event_tag;
5830 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5831 phba->sli4_hba.link_state.logical_speed =
5832 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5833 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5834 "2789 GRP5 Async Event: Updating logical link speed "
5835 "from %dMbps to %dMbps\n", prev_ll_spd,
5836 phba->sli4_hba.link_state.logical_speed);
5840 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5841 * @phba: pointer to lpfc hba data structure.
5843 * This routine is invoked by the worker thread to process all the pending
5844 * SLI4 asynchronous events.
5846 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5848 struct lpfc_cq_event *cq_event;
5850 /* First, declare the async event has been handled */
5851 spin_lock_irq(&phba->hbalock);
5852 phba->hba_flag &= ~ASYNC_EVENT;
5853 spin_unlock_irq(&phba->hbalock);
5854 /* Now, handle all the async events */
5855 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5856 /* Get the first event from the head of the event queue */
5857 spin_lock_irq(&phba->hbalock);
5858 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5859 cq_event, struct lpfc_cq_event, list);
5860 spin_unlock_irq(&phba->hbalock);
5861 /* Process the asynchronous event */
5862 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5863 case LPFC_TRAILER_CODE_LINK:
5864 lpfc_sli4_async_link_evt(phba,
5865 &cq_event->cqe.acqe_link);
5867 case LPFC_TRAILER_CODE_FCOE:
5868 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5870 case LPFC_TRAILER_CODE_DCBX:
5871 lpfc_sli4_async_dcbx_evt(phba,
5872 &cq_event->cqe.acqe_dcbx);
5874 case LPFC_TRAILER_CODE_GRP5:
5875 lpfc_sli4_async_grp5_evt(phba,
5876 &cq_event->cqe.acqe_grp5);
5878 case LPFC_TRAILER_CODE_FC:
5879 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5881 case LPFC_TRAILER_CODE_SLI:
5882 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5885 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5886 "1804 Invalid asynchrous event code: "
5887 "x%x\n", bf_get(lpfc_trailer_code,
5888 &cq_event->cqe.mcqe_cmpl));
5891 /* Free the completion event processed to the free pool */
5892 lpfc_sli4_cq_event_release(phba, cq_event);
5897 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
5898 * @phba: pointer to lpfc hba data structure.
5900 * This routine is invoked by the worker thread to process FCF table
5901 * rediscovery pending completion event.
5903 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
5907 spin_lock_irq(&phba->hbalock);
5908 /* Clear FCF rediscovery timeout event */
5909 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
5910 /* Clear driver fast failover FCF record flag */
5911 phba->fcf.failover_rec.flag = 0;
5912 /* Set state for FCF fast failover */
5913 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
5914 spin_unlock_irq(&phba->hbalock);
5916 /* Scan FCF table from the first entry to re-discover SAN */
5917 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5918 "2777 Start post-quiescent FCF table scan\n");
5919 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5921 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5922 "2747 Issue FCF scan read FCF mailbox "
5923 "command failed 0x%x\n", rc);
5927 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
5928 * @phba: pointer to lpfc hba data structure.
5929 * @dev_grp: The HBA PCI-Device group number.
5931 * This routine is invoked to set up the per HBA PCI-Device group function
5932 * API jump table entries.
5934 * Return: 0 if success, otherwise -ENODEV
5937 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5941 /* Set up lpfc PCI-device group */
5942 phba->pci_dev_grp = dev_grp;
5944 /* The LPFC_PCI_DEV_OC uses SLI4 */
5945 if (dev_grp == LPFC_PCI_DEV_OC)
5946 phba->sli_rev = LPFC_SLI_REV4;
5948 /* Set up device INIT API function jump table */
5949 rc = lpfc_init_api_table_setup(phba, dev_grp);
5952 /* Set up SCSI API function jump table */
5953 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
5956 /* Set up SLI API function jump table */
5957 rc = lpfc_sli_api_table_setup(phba, dev_grp);
5960 /* Set up MBOX API function jump table */
5961 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
5969 * lpfc_log_intr_mode - Log the active interrupt mode
5970 * @phba: pointer to lpfc hba data structure.
5971 * @intr_mode: active interrupt mode adopted.
5973 * This routine it invoked to log the currently used active interrupt mode
5976 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5978 switch (intr_mode) {
5980 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5981 "0470 Enable INTx interrupt mode.\n");
5984 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5985 "0481 Enabled MSI interrupt mode.\n");
5988 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5989 "0480 Enabled MSI-X interrupt mode.\n");
5992 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5993 "0482 Illegal interrupt mode.\n");
6000 * lpfc_cpumask_of_node_init - initalizes cpumask of phba's NUMA node
6001 * @phba: Pointer to HBA context object.
6005 lpfc_cpumask_of_node_init(struct lpfc_hba *phba)
6007 unsigned int cpu, numa_node;
6008 struct cpumask *numa_mask = &phba->sli4_hba.numa_mask;
6010 cpumask_clear(numa_mask);
6012 /* Check if we're a NUMA architecture */
6013 numa_node = dev_to_node(&phba->pcidev->dev);
6014 if (numa_node == NUMA_NO_NODE)
6017 for_each_possible_cpu(cpu)
6018 if (cpu_to_node(cpu) == numa_node)
6019 cpumask_set_cpu(cpu, numa_mask);
6023 * lpfc_enable_pci_dev - Enable a generic PCI device.
6024 * @phba: pointer to lpfc hba data structure.
6026 * This routine is invoked to enable the PCI device that is common to all
6031 * other values - error
6034 lpfc_enable_pci_dev(struct lpfc_hba *phba)
6036 struct pci_dev *pdev;
6038 /* Obtain PCI device reference */
6042 pdev = phba->pcidev;
6043 /* Enable PCI device */
6044 if (pci_enable_device_mem(pdev))
6046 /* Request PCI resource for the device */
6047 if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
6048 goto out_disable_device;
6049 /* Set up device as PCI master and save state for EEH */
6050 pci_set_master(pdev);
6051 pci_try_set_mwi(pdev);
6052 pci_save_state(pdev);
6054 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
6055 if (pci_is_pcie(pdev))
6056 pdev->needs_freset = 1;
6061 pci_disable_device(pdev);
6063 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6064 "1401 Failed to enable pci device\n");
6069 * lpfc_disable_pci_dev - Disable a generic PCI device.
6070 * @phba: pointer to lpfc hba data structure.
6072 * This routine is invoked to disable the PCI device that is common to all
6076 lpfc_disable_pci_dev(struct lpfc_hba *phba)
6078 struct pci_dev *pdev;
6080 /* Obtain PCI device reference */
6084 pdev = phba->pcidev;
6085 /* Release PCI resource and disable PCI device */
6086 pci_release_mem_regions(pdev);
6087 pci_disable_device(pdev);
6093 * lpfc_reset_hba - Reset a hba
6094 * @phba: pointer to lpfc hba data structure.
6096 * This routine is invoked to reset a hba device. It brings the HBA
6097 * offline, performs a board restart, and then brings the board back
6098 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
6099 * on outstanding mailbox commands.
6102 lpfc_reset_hba(struct lpfc_hba *phba)
6104 /* If resets are disabled then set error state and return. */
6105 if (!phba->cfg_enable_hba_reset) {
6106 phba->link_state = LPFC_HBA_ERROR;
6109 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
6110 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
6112 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
6114 lpfc_sli_brdrestart(phba);
6116 lpfc_unblock_mgmt_io(phba);
6120 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
6121 * @phba: pointer to lpfc hba data structure.
6123 * This function enables the PCI SR-IOV virtual functions to a physical
6124 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6125 * enable the number of virtual functions to the physical function. As
6126 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6127 * API call does not considered as an error condition for most of the device.
6130 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
6132 struct pci_dev *pdev = phba->pcidev;
6136 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
6140 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
6145 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
6146 * @phba: pointer to lpfc hba data structure.
6147 * @nr_vfn: number of virtual functions to be enabled.
6149 * This function enables the PCI SR-IOV virtual functions to a physical
6150 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6151 * enable the number of virtual functions to the physical function. As
6152 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6153 * API call does not considered as an error condition for most of the device.
6156 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
6158 struct pci_dev *pdev = phba->pcidev;
6159 uint16_t max_nr_vfn;
6162 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
6163 if (nr_vfn > max_nr_vfn) {
6164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6165 "3057 Requested vfs (%d) greater than "
6166 "supported vfs (%d)", nr_vfn, max_nr_vfn);
6170 rc = pci_enable_sriov(pdev, nr_vfn);
6172 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6173 "2806 Failed to enable sriov on this device "
6174 "with vfn number nr_vf:%d, rc:%d\n",
6177 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6178 "2807 Successful enable sriov on this device "
6179 "with vfn number nr_vf:%d\n", nr_vfn);
6184 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
6185 * @phba: pointer to lpfc hba data structure.
6187 * This routine is invoked to set up the driver internal resources before the
6188 * device specific resource setup to support the HBA device it attached to.
6192 * other values - error
6195 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
6197 struct lpfc_sli *psli = &phba->sli;
6200 * Driver resources common to all SLI revisions
6202 atomic_set(&phba->fast_event_count, 0);
6203 spin_lock_init(&phba->hbalock);
6205 /* Initialize ndlp management spinlock */
6206 spin_lock_init(&phba->ndlp_lock);
6208 /* Initialize port_list spinlock */
6209 spin_lock_init(&phba->port_list_lock);
6210 INIT_LIST_HEAD(&phba->port_list);
6212 INIT_LIST_HEAD(&phba->work_list);
6213 init_waitqueue_head(&phba->wait_4_mlo_m_q);
6215 /* Initialize the wait queue head for the kernel thread */
6216 init_waitqueue_head(&phba->work_waitq);
6218 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6219 "1403 Protocols supported %s %s %s\n",
6220 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
6222 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
6224 (phba->nvmet_support ? "NVMET" : " "));
6226 /* Initialize the IO buffer list used by driver for SLI3 SCSI */
6227 spin_lock_init(&phba->scsi_buf_list_get_lock);
6228 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
6229 spin_lock_init(&phba->scsi_buf_list_put_lock);
6230 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
6232 /* Initialize the fabric iocb list */
6233 INIT_LIST_HEAD(&phba->fabric_iocb_list);
6235 /* Initialize list to save ELS buffers */
6236 INIT_LIST_HEAD(&phba->elsbuf);
6238 /* Initialize FCF connection rec list */
6239 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
6241 /* Initialize OAS configuration list */
6242 spin_lock_init(&phba->devicelock);
6243 INIT_LIST_HEAD(&phba->luns);
6245 /* MBOX heartbeat timer */
6246 timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
6247 /* Fabric block timer */
6248 timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
6249 /* EA polling mode timer */
6250 timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
6251 /* Heartbeat timer */
6252 timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
6254 INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
6260 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
6261 * @phba: pointer to lpfc hba data structure.
6263 * This routine is invoked to set up the driver internal resources specific to
6264 * support the SLI-3 HBA device it attached to.
6268 * other values - error
6271 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
6276 * Initialize timers used by driver
6279 /* FCP polling mode timer */
6280 timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
6282 /* Host attention work mask setup */
6283 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
6284 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
6286 /* Get all the module params for configuring this host */
6287 lpfc_get_cfgparam(phba);
6288 /* Set up phase-1 common device driver resources */
6290 rc = lpfc_setup_driver_resource_phase1(phba);
6294 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
6295 phba->menlo_flag |= HBA_MENLO_SUPPORT;
6296 /* check for menlo minimum sg count */
6297 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
6298 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
6301 if (!phba->sli.sli3_ring)
6302 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
6303 sizeof(struct lpfc_sli_ring),
6305 if (!phba->sli.sli3_ring)
6309 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
6310 * used to create the sg_dma_buf_pool must be dynamically calculated.
6313 /* Initialize the host templates the configured values. */
6314 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
6315 lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
6316 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
6318 if (phba->sli_rev == LPFC_SLI_REV4)
6319 entry_sz = sizeof(struct sli4_sge);
6321 entry_sz = sizeof(struct ulp_bde64);
6323 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
6324 if (phba->cfg_enable_bg) {
6326 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
6327 * the FCP rsp, and a BDE for each. Sice we have no control
6328 * over how many protection data segments the SCSI Layer
6329 * will hand us (ie: there could be one for every block
6330 * in the IO), we just allocate enough BDEs to accomidate
6331 * our max amount and we need to limit lpfc_sg_seg_cnt to
6332 * minimize the risk of running out.
6334 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6335 sizeof(struct fcp_rsp) +
6336 (LPFC_MAX_SG_SEG_CNT * entry_sz);
6338 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
6339 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
6341 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
6342 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
6345 * The scsi_buf for a regular I/O will hold the FCP cmnd,
6346 * the FCP rsp, a BDE for each, and a BDE for up to
6347 * cfg_sg_seg_cnt data segments.
6349 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6350 sizeof(struct fcp_rsp) +
6351 ((phba->cfg_sg_seg_cnt + 2) * entry_sz);
6353 /* Total BDEs in BPL for scsi_sg_list */
6354 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
6357 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6358 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
6359 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6360 phba->cfg_total_seg_cnt);
6362 phba->max_vpi = LPFC_MAX_VPI;
6363 /* This will be set to correct value after config_port mbox */
6364 phba->max_vports = 0;
6367 * Initialize the SLI Layer to run with lpfc HBAs.
6369 lpfc_sli_setup(phba);
6370 lpfc_sli_queue_init(phba);
6372 /* Allocate device driver memory */
6373 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
6376 phba->lpfc_sg_dma_buf_pool =
6377 dma_pool_create("lpfc_sg_dma_buf_pool",
6378 &phba->pcidev->dev, phba->cfg_sg_dma_buf_size,
6381 if (!phba->lpfc_sg_dma_buf_pool)
6384 phba->lpfc_cmd_rsp_buf_pool =
6385 dma_pool_create("lpfc_cmd_rsp_buf_pool",
6387 sizeof(struct fcp_cmnd) +
6388 sizeof(struct fcp_rsp),
6391 if (!phba->lpfc_cmd_rsp_buf_pool)
6392 goto fail_free_dma_buf_pool;
6395 * Enable sr-iov virtual functions if supported and configured
6396 * through the module parameter.
6398 if (phba->cfg_sriov_nr_virtfn > 0) {
6399 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6400 phba->cfg_sriov_nr_virtfn);
6402 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6403 "2808 Requested number of SR-IOV "
6404 "virtual functions (%d) is not "
6406 phba->cfg_sriov_nr_virtfn);
6407 phba->cfg_sriov_nr_virtfn = 0;
6413 fail_free_dma_buf_pool:
6414 dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
6415 phba->lpfc_sg_dma_buf_pool = NULL;
6417 lpfc_mem_free(phba);
6422 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
6423 * @phba: pointer to lpfc hba data structure.
6425 * This routine is invoked to unset the driver internal resources set up
6426 * specific for supporting the SLI-3 HBA device it attached to.
6429 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
6431 /* Free device driver memory allocated */
6432 lpfc_mem_free_all(phba);
6438 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
6439 * @phba: pointer to lpfc hba data structure.
6441 * This routine is invoked to set up the driver internal resources specific to
6442 * support the SLI-4 HBA device it attached to.
6446 * other values - error
6449 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
6451 LPFC_MBOXQ_t *mboxq;
6453 int rc, i, max_buf_size;
6454 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
6455 struct lpfc_mqe *mqe;
6462 phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
6463 phba->sli4_hba.num_possible_cpu = num_possible_cpus();
6464 phba->sli4_hba.curr_disp_cpu = 0;
6465 lpfc_cpumask_of_node_init(phba);
6467 /* Get all the module params for configuring this host */
6468 lpfc_get_cfgparam(phba);
6470 /* Set up phase-1 common device driver resources */
6471 rc = lpfc_setup_driver_resource_phase1(phba);
6475 /* Before proceed, wait for POST done and device ready */
6476 rc = lpfc_sli4_post_status_check(phba);
6480 /* Allocate all driver workqueues here */
6482 /* The lpfc_wq workqueue for deferred irq use */
6483 phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
6486 * Initialize timers used by driver
6489 timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
6491 /* FCF rediscover timer */
6492 timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
6495 * Control structure for handling external multi-buffer mailbox
6496 * command pass-through.
6498 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
6499 sizeof(struct lpfc_mbox_ext_buf_ctx));
6500 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
6502 phba->max_vpi = LPFC_MAX_VPI;
6504 /* This will be set to correct value after the read_config mbox */
6505 phba->max_vports = 0;
6507 /* Program the default value of vlan_id and fc_map */
6508 phba->valid_vlan = 0;
6509 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
6510 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
6511 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
6514 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
6515 * we will associate a new ring, for each EQ/CQ/WQ tuple.
6516 * The WQ create will allocate the ring.
6519 /* Initialize buffer queue management fields */
6520 INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
6521 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
6522 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
6525 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
6527 /* Initialize the Abort buffer list used by driver */
6528 spin_lock_init(&phba->sli4_hba.abts_io_buf_list_lock);
6529 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_io_buf_list);
6531 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6532 /* Initialize the Abort nvme buffer list used by driver */
6533 spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
6534 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6535 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
6536 spin_lock_init(&phba->sli4_hba.t_active_list_lock);
6537 INIT_LIST_HEAD(&phba->sli4_hba.t_active_ctx_list);
6540 /* This abort list used by worker thread */
6541 spin_lock_init(&phba->sli4_hba.sgl_list_lock);
6542 spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
6545 * Initialize driver internal slow-path work queues
6548 /* Driver internel slow-path CQ Event pool */
6549 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
6550 /* Response IOCB work queue list */
6551 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
6552 /* Asynchronous event CQ Event work queue list */
6553 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
6554 /* Fast-path XRI aborted CQ Event work queue list */
6555 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
6556 /* Slow-path XRI aborted CQ Event work queue list */
6557 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
6558 /* Receive queue CQ Event work queue list */
6559 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
6561 /* Initialize extent block lists. */
6562 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
6563 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
6564 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
6565 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
6567 /* Initialize mboxq lists. If the early init routines fail
6568 * these lists need to be correctly initialized.
6570 INIT_LIST_HEAD(&phba->sli.mboxq);
6571 INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
6573 /* initialize optic_state to 0xFF */
6574 phba->sli4_hba.lnk_info.optic_state = 0xff;
6576 /* Allocate device driver memory */
6577 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
6581 /* IF Type 2 ports get initialized now. */
6582 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
6583 LPFC_SLI_INTF_IF_TYPE_2) {
6584 rc = lpfc_pci_function_reset(phba);
6589 phba->temp_sensor_support = 1;
6592 /* Create the bootstrap mailbox command */
6593 rc = lpfc_create_bootstrap_mbox(phba);
6597 /* Set up the host's endian order with the device. */
6598 rc = lpfc_setup_endian_order(phba);
6600 goto out_free_bsmbx;
6602 /* Set up the hba's configuration parameters. */
6603 rc = lpfc_sli4_read_config(phba);
6605 goto out_free_bsmbx;
6606 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
6608 goto out_free_bsmbx;
6610 /* IF Type 0 ports get initialized now. */
6611 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6612 LPFC_SLI_INTF_IF_TYPE_0) {
6613 rc = lpfc_pci_function_reset(phba);
6615 goto out_free_bsmbx;
6618 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6622 goto out_free_bsmbx;
6625 /* Check for NVMET being configured */
6626 phba->nvmet_support = 0;
6627 if (lpfc_enable_nvmet_cnt) {
6629 /* First get WWN of HBA instance */
6630 lpfc_read_nv(phba, mboxq);
6631 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6632 if (rc != MBX_SUCCESS) {
6633 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6634 "6016 Mailbox failed , mbxCmd x%x "
6635 "READ_NV, mbxStatus x%x\n",
6636 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6637 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
6638 mempool_free(mboxq, phba->mbox_mem_pool);
6640 goto out_free_bsmbx;
6643 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
6645 wwn = cpu_to_be64(wwn);
6646 phba->sli4_hba.wwnn.u.name = wwn;
6647 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
6649 /* wwn is WWPN of HBA instance */
6650 wwn = cpu_to_be64(wwn);
6651 phba->sli4_hba.wwpn.u.name = wwn;
6653 /* Check to see if it matches any module parameter */
6654 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
6655 if (wwn == lpfc_enable_nvmet[i]) {
6656 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
6657 if (lpfc_nvmet_mem_alloc(phba))
6660 phba->nvmet_support = 1; /* a match */
6662 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6663 "6017 NVME Target %016llx\n",
6666 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6667 "6021 Can't enable NVME Target."
6668 " NVME_TARGET_FC infrastructure"
6669 " is not in kernel\n");
6671 /* Not supported for NVMET */
6672 phba->cfg_xri_rebalancing = 0;
6678 lpfc_nvme_mod_param_dep(phba);
6680 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
6681 lpfc_supported_pages(mboxq);
6682 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6684 mqe = &mboxq->u.mqe;
6685 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
6686 LPFC_MAX_SUPPORTED_PAGES);
6687 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
6688 switch (pn_page[i]) {
6689 case LPFC_SLI4_PARAMETERS:
6690 phba->sli4_hba.pc_sli4_params.supported = 1;
6696 /* Read the port's SLI4 Parameters capabilities if supported. */
6697 if (phba->sli4_hba.pc_sli4_params.supported)
6698 rc = lpfc_pc_sli4_params_get(phba, mboxq);
6700 mempool_free(mboxq, phba->mbox_mem_pool);
6702 goto out_free_bsmbx;
6707 * Get sli4 parameters that override parameters from Port capabilities.
6708 * If this call fails, it isn't critical unless the SLI4 parameters come
6711 rc = lpfc_get_sli4_parameters(phba, mboxq);
6713 if_type = bf_get(lpfc_sli_intf_if_type,
6714 &phba->sli4_hba.sli_intf);
6715 if_fam = bf_get(lpfc_sli_intf_sli_family,
6716 &phba->sli4_hba.sli_intf);
6717 if (phba->sli4_hba.extents_in_use &&
6718 phba->sli4_hba.rpi_hdrs_in_use) {
6719 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6720 "2999 Unsupported SLI4 Parameters "
6721 "Extents and RPI headers enabled.\n");
6722 if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6723 if_fam == LPFC_SLI_INTF_FAMILY_BE2) {
6724 mempool_free(mboxq, phba->mbox_mem_pool);
6726 goto out_free_bsmbx;
6729 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6730 if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
6731 mempool_free(mboxq, phba->mbox_mem_pool);
6733 goto out_free_bsmbx;
6738 * 1 for cmd, 1 for rsp, NVME adds an extra one
6739 * for boundary conditions in its max_sgl_segment template.
6742 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
6746 * It doesn't matter what family our adapter is in, we are
6747 * limited to 2 Pages, 512 SGEs, for our SGL.
6748 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
6750 max_buf_size = (2 * SLI4_PAGE_SIZE);
6753 * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
6754 * used to create the sg_dma_buf_pool must be calculated.
6756 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
6757 /* Both cfg_enable_bg and cfg_external_dif code paths */
6760 * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
6761 * the FCP rsp, and a SGE. Sice we have no control
6762 * over how many protection segments the SCSI Layer
6763 * will hand us (ie: there could be one for every block
6764 * in the IO), just allocate enough SGEs to accomidate
6765 * our max amount and we need to limit lpfc_sg_seg_cnt
6766 * to minimize the risk of running out.
6768 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6769 sizeof(struct fcp_rsp) + max_buf_size;
6771 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
6772 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
6775 * If supporting DIF, reduce the seg count for scsi to
6776 * allow room for the DIF sges.
6778 if (phba->cfg_enable_bg &&
6779 phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
6780 phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
6782 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6786 * The scsi_buf for a regular I/O holds the FCP cmnd,
6787 * the FCP rsp, a SGE for each, and a SGE for up to
6788 * cfg_sg_seg_cnt data segments.
6790 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6791 sizeof(struct fcp_rsp) +
6792 ((phba->cfg_sg_seg_cnt + extra) *
6793 sizeof(struct sli4_sge));
6795 /* Total SGEs for scsi_sg_list */
6796 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
6797 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6800 * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
6801 * need to post 1 page for the SGL.
6805 if (phba->cfg_xpsgl && !phba->nvmet_support)
6806 phba->cfg_sg_dma_buf_size = LPFC_DEFAULT_XPSGL_SIZE;
6807 else if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ)
6808 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
6810 phba->cfg_sg_dma_buf_size =
6811 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
6813 phba->border_sge_num = phba->cfg_sg_dma_buf_size /
6814 sizeof(struct sli4_sge);
6816 /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
6817 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6818 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
6819 lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
6820 "6300 Reducing NVME sg segment "
6822 LPFC_MAX_NVME_SEG_CNT);
6823 phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
6825 phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
6828 /* Initialize the host templates with the updated values. */
6829 lpfc_vport_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
6830 lpfc_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
6831 lpfc_template_no_hr.sg_tablesize = phba->cfg_scsi_seg_cnt;
6833 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6834 "9087 sg_seg_cnt:%d dmabuf_size:%d "
6835 "total:%d scsi:%d nvme:%d\n",
6836 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6837 phba->cfg_total_seg_cnt, phba->cfg_scsi_seg_cnt,
6838 phba->cfg_nvme_seg_cnt);
6840 if (phba->cfg_sg_dma_buf_size < SLI4_PAGE_SIZE)
6841 i = phba->cfg_sg_dma_buf_size;
6845 phba->lpfc_sg_dma_buf_pool =
6846 dma_pool_create("lpfc_sg_dma_buf_pool",
6848 phba->cfg_sg_dma_buf_size,
6850 if (!phba->lpfc_sg_dma_buf_pool)
6851 goto out_free_bsmbx;
6853 phba->lpfc_cmd_rsp_buf_pool =
6854 dma_pool_create("lpfc_cmd_rsp_buf_pool",
6856 sizeof(struct fcp_cmnd) +
6857 sizeof(struct fcp_rsp),
6859 if (!phba->lpfc_cmd_rsp_buf_pool)
6860 goto out_free_sg_dma_buf;
6862 mempool_free(mboxq, phba->mbox_mem_pool);
6864 /* Verify OAS is supported */
6865 lpfc_sli4_oas_verify(phba);
6867 /* Verify RAS support on adapter */
6868 lpfc_sli4_ras_init(phba);
6870 /* Verify all the SLI4 queues */
6871 rc = lpfc_sli4_queue_verify(phba);
6873 goto out_free_cmd_rsp_buf;
6875 /* Create driver internal CQE event pool */
6876 rc = lpfc_sli4_cq_event_pool_create(phba);
6878 goto out_free_cmd_rsp_buf;
6880 /* Initialize sgl lists per host */
6881 lpfc_init_sgl_list(phba);
6883 /* Allocate and initialize active sgl array */
6884 rc = lpfc_init_active_sgl_array(phba);
6886 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6887 "1430 Failed to initialize sgl list.\n");
6888 goto out_destroy_cq_event_pool;
6890 rc = lpfc_sli4_init_rpi_hdrs(phba);
6892 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6893 "1432 Failed to initialize rpi headers.\n");
6894 goto out_free_active_sgl;
6897 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6898 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6899 phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
6901 if (!phba->fcf.fcf_rr_bmask) {
6902 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6903 "2759 Failed allocate memory for FCF round "
6904 "robin failover bmask\n");
6906 goto out_remove_rpi_hdrs;
6909 phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann,
6910 sizeof(struct lpfc_hba_eq_hdl),
6912 if (!phba->sli4_hba.hba_eq_hdl) {
6913 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6914 "2572 Failed allocate memory for "
6915 "fast-path per-EQ handle array\n");
6917 goto out_free_fcf_rr_bmask;
6920 phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu,
6921 sizeof(struct lpfc_vector_map_info),
6923 if (!phba->sli4_hba.cpu_map) {
6924 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6925 "3327 Failed allocate memory for msi-x "
6926 "interrupt vector mapping\n");
6928 goto out_free_hba_eq_hdl;
6931 phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
6932 if (!phba->sli4_hba.eq_info) {
6933 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6934 "3321 Failed allocation for per_cpu stats\n");
6936 goto out_free_hba_cpu_map;
6939 * Enable sr-iov virtual functions if supported and configured
6940 * through the module parameter.
6942 if (phba->cfg_sriov_nr_virtfn > 0) {
6943 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6944 phba->cfg_sriov_nr_virtfn);
6946 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6947 "3020 Requested number of SR-IOV "
6948 "virtual functions (%d) is not "
6950 phba->cfg_sriov_nr_virtfn);
6951 phba->cfg_sriov_nr_virtfn = 0;
6957 out_free_hba_cpu_map:
6958 kfree(phba->sli4_hba.cpu_map);
6959 out_free_hba_eq_hdl:
6960 kfree(phba->sli4_hba.hba_eq_hdl);
6961 out_free_fcf_rr_bmask:
6962 kfree(phba->fcf.fcf_rr_bmask);
6963 out_remove_rpi_hdrs:
6964 lpfc_sli4_remove_rpi_hdrs(phba);
6965 out_free_active_sgl:
6966 lpfc_free_active_sgl(phba);
6967 out_destroy_cq_event_pool:
6968 lpfc_sli4_cq_event_pool_destroy(phba);
6969 out_free_cmd_rsp_buf:
6970 dma_pool_destroy(phba->lpfc_cmd_rsp_buf_pool);
6971 phba->lpfc_cmd_rsp_buf_pool = NULL;
6972 out_free_sg_dma_buf:
6973 dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
6974 phba->lpfc_sg_dma_buf_pool = NULL;
6976 lpfc_destroy_bootstrap_mbox(phba);
6978 lpfc_mem_free(phba);
6983 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
6984 * @phba: pointer to lpfc hba data structure.
6986 * This routine is invoked to unset the driver internal resources set up
6987 * specific for supporting the SLI-4 HBA device it attached to.
6990 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
6992 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6994 free_percpu(phba->sli4_hba.eq_info);
6996 /* Free memory allocated for msi-x interrupt vector to CPU mapping */
6997 kfree(phba->sli4_hba.cpu_map);
6998 phba->sli4_hba.num_possible_cpu = 0;
6999 phba->sli4_hba.num_present_cpu = 0;
7000 phba->sli4_hba.curr_disp_cpu = 0;
7001 cpumask_clear(&phba->sli4_hba.numa_mask);
7003 /* Free memory allocated for fast-path work queue handles */
7004 kfree(phba->sli4_hba.hba_eq_hdl);
7006 /* Free the allocated rpi headers. */
7007 lpfc_sli4_remove_rpi_hdrs(phba);
7008 lpfc_sli4_remove_rpis(phba);
7010 /* Free eligible FCF index bmask */
7011 kfree(phba->fcf.fcf_rr_bmask);
7013 /* Free the ELS sgl list */
7014 lpfc_free_active_sgl(phba);
7015 lpfc_free_els_sgl_list(phba);
7016 lpfc_free_nvmet_sgl_list(phba);
7018 /* Free the completion queue EQ event pool */
7019 lpfc_sli4_cq_event_release_all(phba);
7020 lpfc_sli4_cq_event_pool_destroy(phba);
7022 /* Release resource identifiers. */
7023 lpfc_sli4_dealloc_resource_identifiers(phba);
7025 /* Free the bsmbx region. */
7026 lpfc_destroy_bootstrap_mbox(phba);
7028 /* Free the SLI Layer memory with SLI4 HBAs */
7029 lpfc_mem_free_all(phba);
7031 /* Free the current connect table */
7032 list_for_each_entry_safe(conn_entry, next_conn_entry,
7033 &phba->fcf_conn_rec_list, list) {
7034 list_del_init(&conn_entry->list);
7042 * lpfc_init_api_table_setup - Set up init api function jump table
7043 * @phba: The hba struct for which this call is being executed.
7044 * @dev_grp: The HBA PCI-Device group number.
7046 * This routine sets up the device INIT interface API function jump table
7049 * Returns: 0 - success, -ENODEV - failure.
7052 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7054 phba->lpfc_hba_init_link = lpfc_hba_init_link;
7055 phba->lpfc_hba_down_link = lpfc_hba_down_link;
7056 phba->lpfc_selective_reset = lpfc_selective_reset;
7058 case LPFC_PCI_DEV_LP:
7059 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
7060 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
7061 phba->lpfc_stop_port = lpfc_stop_port_s3;
7063 case LPFC_PCI_DEV_OC:
7064 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
7065 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
7066 phba->lpfc_stop_port = lpfc_stop_port_s4;
7069 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7070 "1431 Invalid HBA PCI-device group: 0x%x\n",
7079 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
7080 * @phba: pointer to lpfc hba data structure.
7082 * This routine is invoked to set up the driver internal resources after the
7083 * device specific resource setup to support the HBA device it attached to.
7087 * other values - error
7090 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
7094 /* Startup the kernel thread for this host adapter. */
7095 phba->worker_thread = kthread_run(lpfc_do_work, phba,
7096 "lpfc_worker_%d", phba->brd_no);
7097 if (IS_ERR(phba->worker_thread)) {
7098 error = PTR_ERR(phba->worker_thread);
7106 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
7107 * @phba: pointer to lpfc hba data structure.
7109 * This routine is invoked to unset the driver internal resources set up after
7110 * the device specific resource setup for supporting the HBA device it
7114 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
7117 flush_workqueue(phba->wq);
7118 destroy_workqueue(phba->wq);
7122 /* Stop kernel worker thread */
7123 if (phba->worker_thread)
7124 kthread_stop(phba->worker_thread);
7128 * lpfc_free_iocb_list - Free iocb list.
7129 * @phba: pointer to lpfc hba data structure.
7131 * This routine is invoked to free the driver's IOCB list and memory.
7134 lpfc_free_iocb_list(struct lpfc_hba *phba)
7136 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
7138 spin_lock_irq(&phba->hbalock);
7139 list_for_each_entry_safe(iocbq_entry, iocbq_next,
7140 &phba->lpfc_iocb_list, list) {
7141 list_del(&iocbq_entry->list);
7143 phba->total_iocbq_bufs--;
7145 spin_unlock_irq(&phba->hbalock);
7151 * lpfc_init_iocb_list - Allocate and initialize iocb list.
7152 * @phba: pointer to lpfc hba data structure.
7154 * This routine is invoked to allocate and initizlize the driver's IOCB
7155 * list and set up the IOCB tag array accordingly.
7159 * other values - error
7162 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
7164 struct lpfc_iocbq *iocbq_entry = NULL;
7168 /* Initialize and populate the iocb list per host. */
7169 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
7170 for (i = 0; i < iocb_count; i++) {
7171 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
7172 if (iocbq_entry == NULL) {
7173 printk(KERN_ERR "%s: only allocated %d iocbs of "
7174 "expected %d count. Unloading driver.\n",
7175 __func__, i, iocb_count);
7176 goto out_free_iocbq;
7179 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
7182 printk(KERN_ERR "%s: failed to allocate IOTAG. "
7183 "Unloading driver.\n", __func__);
7184 goto out_free_iocbq;
7186 iocbq_entry->sli4_lxritag = NO_XRI;
7187 iocbq_entry->sli4_xritag = NO_XRI;
7189 spin_lock_irq(&phba->hbalock);
7190 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
7191 phba->total_iocbq_bufs++;
7192 spin_unlock_irq(&phba->hbalock);
7198 lpfc_free_iocb_list(phba);
7204 * lpfc_free_sgl_list - Free a given sgl list.
7205 * @phba: pointer to lpfc hba data structure.
7206 * @sglq_list: pointer to the head of sgl list.
7208 * This routine is invoked to free a give sgl list and memory.
7211 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
7213 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7215 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
7216 list_del(&sglq_entry->list);
7217 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
7223 * lpfc_free_els_sgl_list - Free els sgl list.
7224 * @phba: pointer to lpfc hba data structure.
7226 * This routine is invoked to free the driver's els sgl list and memory.
7229 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
7231 LIST_HEAD(sglq_list);
7233 /* Retrieve all els sgls from driver list */
7234 spin_lock_irq(&phba->hbalock);
7235 spin_lock(&phba->sli4_hba.sgl_list_lock);
7236 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
7237 spin_unlock(&phba->sli4_hba.sgl_list_lock);
7238 spin_unlock_irq(&phba->hbalock);
7240 /* Now free the sgl list */
7241 lpfc_free_sgl_list(phba, &sglq_list);
7245 * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
7246 * @phba: pointer to lpfc hba data structure.
7248 * This routine is invoked to free the driver's nvmet sgl list and memory.
7251 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
7253 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7254 LIST_HEAD(sglq_list);
7256 /* Retrieve all nvmet sgls from driver list */
7257 spin_lock_irq(&phba->hbalock);
7258 spin_lock(&phba->sli4_hba.sgl_list_lock);
7259 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
7260 spin_unlock(&phba->sli4_hba.sgl_list_lock);
7261 spin_unlock_irq(&phba->hbalock);
7263 /* Now free the sgl list */
7264 list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
7265 list_del(&sglq_entry->list);
7266 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
7270 /* Update the nvmet_xri_cnt to reflect no current sgls.
7271 * The next initialization cycle sets the count and allocates
7272 * the sgls over again.
7274 phba->sli4_hba.nvmet_xri_cnt = 0;
7278 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
7279 * @phba: pointer to lpfc hba data structure.
7281 * This routine is invoked to allocate the driver's active sgl memory.
7282 * This array will hold the sglq_entry's for active IOs.
7285 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
7288 size = sizeof(struct lpfc_sglq *);
7289 size *= phba->sli4_hba.max_cfg_param.max_xri;
7291 phba->sli4_hba.lpfc_sglq_active_list =
7292 kzalloc(size, GFP_KERNEL);
7293 if (!phba->sli4_hba.lpfc_sglq_active_list)
7299 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
7300 * @phba: pointer to lpfc hba data structure.
7302 * This routine is invoked to walk through the array of active sglq entries
7303 * and free all of the resources.
7304 * This is just a place holder for now.
7307 lpfc_free_active_sgl(struct lpfc_hba *phba)
7309 kfree(phba->sli4_hba.lpfc_sglq_active_list);
7313 * lpfc_init_sgl_list - Allocate and initialize sgl list.
7314 * @phba: pointer to lpfc hba data structure.
7316 * This routine is invoked to allocate and initizlize the driver's sgl
7317 * list and set up the sgl xritag tag array accordingly.
7321 lpfc_init_sgl_list(struct lpfc_hba *phba)
7323 /* Initialize and populate the sglq list per host/VF. */
7324 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
7325 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7326 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
7327 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
7329 /* els xri-sgl book keeping */
7330 phba->sli4_hba.els_xri_cnt = 0;
7332 /* nvme xri-buffer book keeping */
7333 phba->sli4_hba.io_xri_cnt = 0;
7337 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
7338 * @phba: pointer to lpfc hba data structure.
7340 * This routine is invoked to post rpi header templates to the
7341 * port for those SLI4 ports that do not support extents. This routine
7342 * posts a PAGE_SIZE memory region to the port to hold up to
7343 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
7344 * and should be called only when interrupts are disabled.
7348 * -ERROR - otherwise.
7351 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
7354 struct lpfc_rpi_hdr *rpi_hdr;
7356 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
7357 if (!phba->sli4_hba.rpi_hdrs_in_use)
7359 if (phba->sli4_hba.extents_in_use)
7362 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
7364 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7365 "0391 Error during rpi post operation\n");
7366 lpfc_sli4_remove_rpis(phba);
7374 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
7375 * @phba: pointer to lpfc hba data structure.
7377 * This routine is invoked to allocate a single 4KB memory region to
7378 * support rpis and stores them in the phba. This single region
7379 * provides support for up to 64 rpis. The region is used globally
7383 * A valid rpi hdr on success.
7384 * A NULL pointer on any failure.
7386 struct lpfc_rpi_hdr *
7387 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
7389 uint16_t rpi_limit, curr_rpi_range;
7390 struct lpfc_dmabuf *dmabuf;
7391 struct lpfc_rpi_hdr *rpi_hdr;
7394 * If the SLI4 port supports extents, posting the rpi header isn't
7395 * required. Set the expected maximum count and let the actual value
7396 * get set when extents are fully allocated.
7398 if (!phba->sli4_hba.rpi_hdrs_in_use)
7400 if (phba->sli4_hba.extents_in_use)
7403 /* The limit on the logical index is just the max_rpi count. */
7404 rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
7406 spin_lock_irq(&phba->hbalock);
7408 * Establish the starting RPI in this header block. The starting
7409 * rpi is normalized to a zero base because the physical rpi is
7412 curr_rpi_range = phba->sli4_hba.next_rpi;
7413 spin_unlock_irq(&phba->hbalock);
7415 /* Reached full RPI range */
7416 if (curr_rpi_range == rpi_limit)
7420 * First allocate the protocol header region for the port. The
7421 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
7423 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7427 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
7428 LPFC_HDR_TEMPLATE_SIZE,
7429 &dmabuf->phys, GFP_KERNEL);
7430 if (!dmabuf->virt) {
7432 goto err_free_dmabuf;
7435 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
7437 goto err_free_coherent;
7440 /* Save the rpi header data for cleanup later. */
7441 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
7443 goto err_free_coherent;
7445 rpi_hdr->dmabuf = dmabuf;
7446 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
7447 rpi_hdr->page_count = 1;
7448 spin_lock_irq(&phba->hbalock);
7450 /* The rpi_hdr stores the logical index only. */
7451 rpi_hdr->start_rpi = curr_rpi_range;
7452 rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
7453 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
7455 spin_unlock_irq(&phba->hbalock);
7459 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
7460 dmabuf->virt, dmabuf->phys);
7467 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
7468 * @phba: pointer to lpfc hba data structure.
7470 * This routine is invoked to remove all memory resources allocated
7471 * to support rpis for SLI4 ports not supporting extents. This routine
7472 * presumes the caller has released all rpis consumed by fabric or port
7473 * logins and is prepared to have the header pages removed.
7476 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
7478 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
7480 if (!phba->sli4_hba.rpi_hdrs_in_use)
7483 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
7484 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
7485 list_del(&rpi_hdr->list);
7486 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
7487 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
7488 kfree(rpi_hdr->dmabuf);
7492 /* There are no rpis available to the port now. */
7493 phba->sli4_hba.next_rpi = 0;
7497 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
7498 * @pdev: pointer to pci device data structure.
7500 * This routine is invoked to allocate the driver hba data structure for an
7501 * HBA device. If the allocation is successful, the phba reference to the
7502 * PCI device data structure is set.
7505 * pointer to @phba - successful
7508 static struct lpfc_hba *
7509 lpfc_hba_alloc(struct pci_dev *pdev)
7511 struct lpfc_hba *phba;
7513 /* Allocate memory for HBA structure */
7514 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
7516 dev_err(&pdev->dev, "failed to allocate hba struct\n");
7520 /* Set reference to PCI device in HBA structure */
7521 phba->pcidev = pdev;
7523 /* Assign an unused board number */
7524 phba->brd_no = lpfc_get_instance();
7525 if (phba->brd_no < 0) {
7529 phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
7531 spin_lock_init(&phba->ct_ev_lock);
7532 INIT_LIST_HEAD(&phba->ct_ev_waiters);
7538 * lpfc_hba_free - Free driver hba data structure with a device.
7539 * @phba: pointer to lpfc hba data structure.
7541 * This routine is invoked to free the driver hba data structure with an
7545 lpfc_hba_free(struct lpfc_hba *phba)
7547 if (phba->sli_rev == LPFC_SLI_REV4)
7548 kfree(phba->sli4_hba.hdwq);
7550 /* Release the driver assigned board number */
7551 idr_remove(&lpfc_hba_index, phba->brd_no);
7553 /* Free memory allocated with sli3 rings */
7554 kfree(phba->sli.sli3_ring);
7555 phba->sli.sli3_ring = NULL;
7562 * lpfc_create_shost - Create hba physical port with associated scsi host.
7563 * @phba: pointer to lpfc hba data structure.
7565 * This routine is invoked to create HBA physical port and associate a SCSI
7570 * other values - error
7573 lpfc_create_shost(struct lpfc_hba *phba)
7575 struct lpfc_vport *vport;
7576 struct Scsi_Host *shost;
7578 /* Initialize HBA FC structure */
7579 phba->fc_edtov = FF_DEF_EDTOV;
7580 phba->fc_ratov = FF_DEF_RATOV;
7581 phba->fc_altov = FF_DEF_ALTOV;
7582 phba->fc_arbtov = FF_DEF_ARBTOV;
7584 atomic_set(&phba->sdev_cnt, 0);
7585 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
7589 shost = lpfc_shost_from_vport(vport);
7590 phba->pport = vport;
7592 if (phba->nvmet_support) {
7593 /* Only 1 vport (pport) will support NVME target */
7594 phba->targetport = NULL;
7595 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
7596 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME_DISC,
7597 "6076 NVME Target Found\n");
7600 lpfc_debugfs_initialize(vport);
7601 /* Put reference to SCSI host to driver's device private data */
7602 pci_set_drvdata(phba->pcidev, shost);
7605 * At this point we are fully registered with PSA. In addition,
7606 * any initial discovery should be completed.
7608 vport->load_flag |= FC_ALLOW_FDMI;
7609 if (phba->cfg_enable_SmartSAN ||
7610 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
7612 /* Setup appropriate attribute masks */
7613 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
7614 if (phba->cfg_enable_SmartSAN)
7615 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
7617 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
7623 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
7624 * @phba: pointer to lpfc hba data structure.
7626 * This routine is invoked to destroy HBA physical port and the associated
7630 lpfc_destroy_shost(struct lpfc_hba *phba)
7632 struct lpfc_vport *vport = phba->pport;
7634 /* Destroy physical port that associated with the SCSI host */
7635 destroy_port(vport);
7641 * lpfc_setup_bg - Setup Block guard structures and debug areas.
7642 * @phba: pointer to lpfc hba data structure.
7643 * @shost: the shost to be used to detect Block guard settings.
7645 * This routine sets up the local Block guard protocol settings for @shost.
7646 * This routine also allocates memory for debugging bg buffers.
7649 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
7654 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7655 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7656 "1478 Registering BlockGuard with the "
7659 old_mask = phba->cfg_prot_mask;
7660 old_guard = phba->cfg_prot_guard;
7662 /* Only allow supported values */
7663 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
7664 SHOST_DIX_TYPE0_PROTECTION |
7665 SHOST_DIX_TYPE1_PROTECTION);
7666 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
7667 SHOST_DIX_GUARD_CRC);
7669 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
7670 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
7671 phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
7673 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7674 if ((old_mask != phba->cfg_prot_mask) ||
7675 (old_guard != phba->cfg_prot_guard))
7676 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7677 "1475 Registering BlockGuard with the "
7678 "SCSI layer: mask %d guard %d\n",
7679 phba->cfg_prot_mask,
7680 phba->cfg_prot_guard);
7682 scsi_host_set_prot(shost, phba->cfg_prot_mask);
7683 scsi_host_set_guard(shost, phba->cfg_prot_guard);
7685 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7686 "1479 Not Registering BlockGuard with the SCSI "
7687 "layer, Bad protection parameters: %d %d\n",
7688 old_mask, old_guard);
7693 * lpfc_post_init_setup - Perform necessary device post initialization setup.
7694 * @phba: pointer to lpfc hba data structure.
7696 * This routine is invoked to perform all the necessary post initialization
7697 * setup for the device.
7700 lpfc_post_init_setup(struct lpfc_hba *phba)
7702 struct Scsi_Host *shost;
7703 struct lpfc_adapter_event_header adapter_event;
7705 /* Get the default values for Model Name and Description */
7706 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
7709 * hba setup may have changed the hba_queue_depth so we need to
7710 * adjust the value of can_queue.
7712 shost = pci_get_drvdata(phba->pcidev);
7713 shost->can_queue = phba->cfg_hba_queue_depth - 10;
7715 lpfc_host_attrib_init(shost);
7717 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7718 spin_lock_irq(shost->host_lock);
7719 lpfc_poll_start_timer(phba);
7720 spin_unlock_irq(shost->host_lock);
7723 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7724 "0428 Perform SCSI scan\n");
7725 /* Send board arrival event to upper layer */
7726 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
7727 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
7728 fc_host_post_vendor_event(shost, fc_get_event_number(),
7729 sizeof(adapter_event),
7730 (char *) &adapter_event,
7736 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
7737 * @phba: pointer to lpfc hba data structure.
7739 * This routine is invoked to set up the PCI device memory space for device
7740 * with SLI-3 interface spec.
7744 * other values - error
7747 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
7749 struct pci_dev *pdev = phba->pcidev;
7750 unsigned long bar0map_len, bar2map_len;
7758 /* Set the device DMA mask size */
7759 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
7761 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
7766 /* Get the bus address of Bar0 and Bar2 and the number of bytes
7767 * required by each mapping.
7769 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7770 bar0map_len = pci_resource_len(pdev, 0);
7772 phba->pci_bar2_map = pci_resource_start(pdev, 2);
7773 bar2map_len = pci_resource_len(pdev, 2);
7775 /* Map HBA SLIM to a kernel virtual address. */
7776 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
7777 if (!phba->slim_memmap_p) {
7778 dev_printk(KERN_ERR, &pdev->dev,
7779 "ioremap failed for SLIM memory.\n");
7783 /* Map HBA Control Registers to a kernel virtual address. */
7784 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
7785 if (!phba->ctrl_regs_memmap_p) {
7786 dev_printk(KERN_ERR, &pdev->dev,
7787 "ioremap failed for HBA control registers.\n");
7788 goto out_iounmap_slim;
7791 /* Allocate memory for SLI-2 structures */
7792 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7793 &phba->slim2p.phys, GFP_KERNEL);
7794 if (!phba->slim2p.virt)
7797 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7798 phba->mbox_ext = (phba->slim2p.virt +
7799 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7800 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7801 phba->IOCBs = (phba->slim2p.virt +
7802 offsetof(struct lpfc_sli2_slim, IOCBs));
7804 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7805 lpfc_sli_hbq_size(),
7806 &phba->hbqslimp.phys,
7808 if (!phba->hbqslimp.virt)
7811 hbq_count = lpfc_sli_hbq_count();
7812 ptr = phba->hbqslimp.virt;
7813 for (i = 0; i < hbq_count; ++i) {
7814 phba->hbqs[i].hbq_virt = ptr;
7815 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7816 ptr += (lpfc_hbq_defs[i]->entry_count *
7817 sizeof(struct lpfc_hbq_entry));
7819 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7820 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7822 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7824 phba->MBslimaddr = phba->slim_memmap_p;
7825 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7826 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7827 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7828 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7833 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7834 phba->slim2p.virt, phba->slim2p.phys);
7836 iounmap(phba->ctrl_regs_memmap_p);
7838 iounmap(phba->slim_memmap_p);
7844 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7845 * @phba: pointer to lpfc hba data structure.
7847 * This routine is invoked to unset the PCI device memory space for device
7848 * with SLI-3 interface spec.
7851 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7853 struct pci_dev *pdev;
7855 /* Obtain PCI device reference */
7859 pdev = phba->pcidev;
7861 /* Free coherent DMA memory allocated */
7862 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7863 phba->hbqslimp.virt, phba->hbqslimp.phys);
7864 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7865 phba->slim2p.virt, phba->slim2p.phys);
7867 /* I/O memory unmap */
7868 iounmap(phba->ctrl_regs_memmap_p);
7869 iounmap(phba->slim_memmap_p);
7875 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7876 * @phba: pointer to lpfc hba data structure.
7878 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
7879 * done and check status.
7881 * Return 0 if successful, otherwise -ENODEV.
7884 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
7886 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
7887 struct lpfc_register reg_data;
7888 int i, port_error = 0;
7891 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
7892 memset(®_data, 0, sizeof(reg_data));
7893 if (!phba->sli4_hba.PSMPHRregaddr)
7896 /* Wait up to 30 seconds for the SLI Port POST done and ready */
7897 for (i = 0; i < 3000; i++) {
7898 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
7899 &portsmphr_reg.word0) ||
7900 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
7901 /* Port has a fatal POST error, break out */
7902 port_error = -ENODEV;
7905 if (LPFC_POST_STAGE_PORT_READY ==
7906 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
7912 * If there was a port error during POST, then don't proceed with
7913 * other register reads as the data may not be valid. Just exit.
7916 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7917 "1408 Port Failed POST - portsmphr=0x%x, "
7918 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
7919 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
7920 portsmphr_reg.word0,
7921 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
7922 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
7923 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
7924 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
7925 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
7926 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
7927 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
7928 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
7930 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7931 "2534 Device Info: SLIFamily=0x%x, "
7932 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
7933 "SLIHint_2=0x%x, FT=0x%x\n",
7934 bf_get(lpfc_sli_intf_sli_family,
7935 &phba->sli4_hba.sli_intf),
7936 bf_get(lpfc_sli_intf_slirev,
7937 &phba->sli4_hba.sli_intf),
7938 bf_get(lpfc_sli_intf_if_type,
7939 &phba->sli4_hba.sli_intf),
7940 bf_get(lpfc_sli_intf_sli_hint1,
7941 &phba->sli4_hba.sli_intf),
7942 bf_get(lpfc_sli_intf_sli_hint2,
7943 &phba->sli4_hba.sli_intf),
7944 bf_get(lpfc_sli_intf_func_type,
7945 &phba->sli4_hba.sli_intf));
7947 * Check for other Port errors during the initialization
7948 * process. Fail the load if the port did not come up
7951 if_type = bf_get(lpfc_sli_intf_if_type,
7952 &phba->sli4_hba.sli_intf);
7954 case LPFC_SLI_INTF_IF_TYPE_0:
7955 phba->sli4_hba.ue_mask_lo =
7956 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
7957 phba->sli4_hba.ue_mask_hi =
7958 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
7960 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
7962 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
7963 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
7964 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
7965 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7966 "1422 Unrecoverable Error "
7967 "Detected during POST "
7968 "uerr_lo_reg=0x%x, "
7969 "uerr_hi_reg=0x%x, "
7970 "ue_mask_lo_reg=0x%x, "
7971 "ue_mask_hi_reg=0x%x\n",
7974 phba->sli4_hba.ue_mask_lo,
7975 phba->sli4_hba.ue_mask_hi);
7976 port_error = -ENODEV;
7979 case LPFC_SLI_INTF_IF_TYPE_2:
7980 case LPFC_SLI_INTF_IF_TYPE_6:
7981 /* Final checks. The port status should be clean. */
7982 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7984 (bf_get(lpfc_sliport_status_err, ®_data) &&
7985 !bf_get(lpfc_sliport_status_rn, ®_data))) {
7986 phba->work_status[0] =
7987 readl(phba->sli4_hba.u.if_type2.
7989 phba->work_status[1] =
7990 readl(phba->sli4_hba.u.if_type2.
7992 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7993 "2888 Unrecoverable port error "
7994 "following POST: port status reg "
7995 "0x%x, port_smphr reg 0x%x, "
7996 "error 1=0x%x, error 2=0x%x\n",
7998 portsmphr_reg.word0,
7999 phba->work_status[0],
8000 phba->work_status[1]);
8001 port_error = -ENODEV;
8004 case LPFC_SLI_INTF_IF_TYPE_1:
8013 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
8014 * @phba: pointer to lpfc hba data structure.
8015 * @if_type: The SLI4 interface type getting configured.
8017 * This routine is invoked to set up SLI4 BAR0 PCI config space register
8021 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
8024 case LPFC_SLI_INTF_IF_TYPE_0:
8025 phba->sli4_hba.u.if_type0.UERRLOregaddr =
8026 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
8027 phba->sli4_hba.u.if_type0.UERRHIregaddr =
8028 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
8029 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
8030 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
8031 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
8032 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
8033 phba->sli4_hba.SLIINTFregaddr =
8034 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
8036 case LPFC_SLI_INTF_IF_TYPE_2:
8037 phba->sli4_hba.u.if_type2.EQDregaddr =
8038 phba->sli4_hba.conf_regs_memmap_p +
8039 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8040 phba->sli4_hba.u.if_type2.ERR1regaddr =
8041 phba->sli4_hba.conf_regs_memmap_p +
8042 LPFC_CTL_PORT_ER1_OFFSET;
8043 phba->sli4_hba.u.if_type2.ERR2regaddr =
8044 phba->sli4_hba.conf_regs_memmap_p +
8045 LPFC_CTL_PORT_ER2_OFFSET;
8046 phba->sli4_hba.u.if_type2.CTRLregaddr =
8047 phba->sli4_hba.conf_regs_memmap_p +
8048 LPFC_CTL_PORT_CTL_OFFSET;
8049 phba->sli4_hba.u.if_type2.STATUSregaddr =
8050 phba->sli4_hba.conf_regs_memmap_p +
8051 LPFC_CTL_PORT_STA_OFFSET;
8052 phba->sli4_hba.SLIINTFregaddr =
8053 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
8054 phba->sli4_hba.PSMPHRregaddr =
8055 phba->sli4_hba.conf_regs_memmap_p +
8056 LPFC_CTL_PORT_SEM_OFFSET;
8057 phba->sli4_hba.RQDBregaddr =
8058 phba->sli4_hba.conf_regs_memmap_p +
8059 LPFC_ULP0_RQ_DOORBELL;
8060 phba->sli4_hba.WQDBregaddr =
8061 phba->sli4_hba.conf_regs_memmap_p +
8062 LPFC_ULP0_WQ_DOORBELL;
8063 phba->sli4_hba.CQDBregaddr =
8064 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
8065 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8066 phba->sli4_hba.MQDBregaddr =
8067 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
8068 phba->sli4_hba.BMBXregaddr =
8069 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8071 case LPFC_SLI_INTF_IF_TYPE_6:
8072 phba->sli4_hba.u.if_type2.EQDregaddr =
8073 phba->sli4_hba.conf_regs_memmap_p +
8074 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8075 phba->sli4_hba.u.if_type2.ERR1regaddr =
8076 phba->sli4_hba.conf_regs_memmap_p +
8077 LPFC_CTL_PORT_ER1_OFFSET;
8078 phba->sli4_hba.u.if_type2.ERR2regaddr =
8079 phba->sli4_hba.conf_regs_memmap_p +
8080 LPFC_CTL_PORT_ER2_OFFSET;
8081 phba->sli4_hba.u.if_type2.CTRLregaddr =
8082 phba->sli4_hba.conf_regs_memmap_p +
8083 LPFC_CTL_PORT_CTL_OFFSET;
8084 phba->sli4_hba.u.if_type2.STATUSregaddr =
8085 phba->sli4_hba.conf_regs_memmap_p +
8086 LPFC_CTL_PORT_STA_OFFSET;
8087 phba->sli4_hba.PSMPHRregaddr =
8088 phba->sli4_hba.conf_regs_memmap_p +
8089 LPFC_CTL_PORT_SEM_OFFSET;
8090 phba->sli4_hba.BMBXregaddr =
8091 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8093 case LPFC_SLI_INTF_IF_TYPE_1:
8095 dev_printk(KERN_ERR, &phba->pcidev->dev,
8096 "FATAL - unsupported SLI4 interface type - %d\n",
8103 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
8104 * @phba: pointer to lpfc hba data structure.
8106 * This routine is invoked to set up SLI4 BAR1 register memory map.
8109 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
8112 case LPFC_SLI_INTF_IF_TYPE_0:
8113 phba->sli4_hba.PSMPHRregaddr =
8114 phba->sli4_hba.ctrl_regs_memmap_p +
8115 LPFC_SLIPORT_IF0_SMPHR;
8116 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8118 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8120 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8123 case LPFC_SLI_INTF_IF_TYPE_6:
8124 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8125 LPFC_IF6_RQ_DOORBELL;
8126 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8127 LPFC_IF6_WQ_DOORBELL;
8128 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8129 LPFC_IF6_CQ_DOORBELL;
8130 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8131 LPFC_IF6_EQ_DOORBELL;
8132 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8133 LPFC_IF6_MQ_DOORBELL;
8135 case LPFC_SLI_INTF_IF_TYPE_2:
8136 case LPFC_SLI_INTF_IF_TYPE_1:
8138 dev_err(&phba->pcidev->dev,
8139 "FATAL - unsupported SLI4 interface type - %d\n",
8146 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
8147 * @phba: pointer to lpfc hba data structure.
8148 * @vf: virtual function number
8150 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
8151 * based on the given viftual function number, @vf.
8153 * Return 0 if successful, otherwise -ENODEV.
8156 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
8158 if (vf > LPFC_VIR_FUNC_MAX)
8161 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8162 vf * LPFC_VFR_PAGE_SIZE +
8163 LPFC_ULP0_RQ_DOORBELL);
8164 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8165 vf * LPFC_VFR_PAGE_SIZE +
8166 LPFC_ULP0_WQ_DOORBELL);
8167 phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8168 vf * LPFC_VFR_PAGE_SIZE +
8169 LPFC_EQCQ_DOORBELL);
8170 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8171 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8172 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
8173 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8174 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
8179 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
8180 * @phba: pointer to lpfc hba data structure.
8182 * This routine is invoked to create the bootstrap mailbox
8183 * region consistent with the SLI-4 interface spec. This
8184 * routine allocates all memory necessary to communicate
8185 * mailbox commands to the port and sets up all alignment
8186 * needs. No locks are expected to be held when calling
8191 * -ENOMEM - could not allocated memory.
8194 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
8197 struct lpfc_dmabuf *dmabuf;
8198 struct dma_address *dma_address;
8202 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
8207 * The bootstrap mailbox region is comprised of 2 parts
8208 * plus an alignment restriction of 16 bytes.
8210 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
8211 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size,
8212 &dmabuf->phys, GFP_KERNEL);
8213 if (!dmabuf->virt) {
8219 * Initialize the bootstrap mailbox pointers now so that the register
8220 * operations are simple later. The mailbox dma address is required
8221 * to be 16-byte aligned. Also align the virtual memory as each
8222 * maibox is copied into the bmbx mailbox region before issuing the
8223 * command to the port.
8225 phba->sli4_hba.bmbx.dmabuf = dmabuf;
8226 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
8228 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
8229 LPFC_ALIGN_16_BYTE);
8230 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
8231 LPFC_ALIGN_16_BYTE);
8234 * Set the high and low physical addresses now. The SLI4 alignment
8235 * requirement is 16 bytes and the mailbox is posted to the port
8236 * as two 30-bit addresses. The other data is a bit marking whether
8237 * the 30-bit address is the high or low address.
8238 * Upcast bmbx aphys to 64bits so shift instruction compiles
8239 * clean on 32 bit machines.
8241 dma_address = &phba->sli4_hba.bmbx.dma_address;
8242 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
8243 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
8244 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
8245 LPFC_BMBX_BIT1_ADDR_HI);
8247 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
8248 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
8249 LPFC_BMBX_BIT1_ADDR_LO);
8254 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
8255 * @phba: pointer to lpfc hba data structure.
8257 * This routine is invoked to teardown the bootstrap mailbox
8258 * region and release all host resources. This routine requires
8259 * the caller to ensure all mailbox commands recovered, no
8260 * additional mailbox comands are sent, and interrupts are disabled
8261 * before calling this routine.
8265 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
8267 dma_free_coherent(&phba->pcidev->dev,
8268 phba->sli4_hba.bmbx.bmbx_size,
8269 phba->sli4_hba.bmbx.dmabuf->virt,
8270 phba->sli4_hba.bmbx.dmabuf->phys);
8272 kfree(phba->sli4_hba.bmbx.dmabuf);
8273 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
8276 static const char * const lpfc_topo_to_str[] = {
8287 * lpfc_map_topology - Map the topology read from READ_CONFIG
8288 * @phba: pointer to lpfc hba data structure.
8289 * @rdconf: pointer to read config data
8291 * This routine is invoked to map the topology values as read
8292 * from the read config mailbox command. If the persistent
8293 * topology feature is supported, the firmware will provide the
8294 * saved topology information to be used in INIT_LINK
8297 #define LINK_FLAGS_DEF 0x0
8298 #define LINK_FLAGS_P2P 0x1
8299 #define LINK_FLAGS_LOOP 0x2
8301 lpfc_map_topology(struct lpfc_hba *phba, struct lpfc_mbx_read_config *rd_config)
8305 ptv = bf_get(lpfc_mbx_rd_conf_ptv, rd_config);
8306 tf = bf_get(lpfc_mbx_rd_conf_tf, rd_config);
8307 pt = bf_get(lpfc_mbx_rd_conf_pt, rd_config);
8309 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8310 "2027 Read Config Data : ptv:0x%x, tf:0x%x pt:0x%x",
8313 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8314 "2019 FW does not support persistent topology "
8315 "Using driver parameter defined value [%s]",
8316 lpfc_topo_to_str[phba->cfg_topology]);
8319 /* FW supports persistent topology - override module parameter value */
8320 phba->hba_flag |= HBA_PERSISTENT_TOPO;
8321 switch (phba->pcidev->device) {
8322 case PCI_DEVICE_ID_LANCER_G7_FC:
8323 if (tf || (pt == LINK_FLAGS_LOOP)) {
8324 /* Invalid values from FW - use driver params */
8325 phba->hba_flag &= ~HBA_PERSISTENT_TOPO;
8327 /* Prism only supports PT2PT topology */
8328 phba->cfg_topology = FLAGS_TOPOLOGY_MODE_PT_PT;
8331 case PCI_DEVICE_ID_LANCER_G6_FC:
8333 phba->cfg_topology = ((pt == LINK_FLAGS_LOOP)
8334 ? FLAGS_TOPOLOGY_MODE_LOOP
8335 : FLAGS_TOPOLOGY_MODE_PT_PT);
8337 phba->hba_flag &= ~HBA_PERSISTENT_TOPO;
8342 /* If topology failover set - pt is '0' or '1' */
8343 phba->cfg_topology = (pt ? FLAGS_TOPOLOGY_MODE_PT_LOOP :
8344 FLAGS_TOPOLOGY_MODE_LOOP_PT);
8346 phba->cfg_topology = ((pt == LINK_FLAGS_P2P)
8347 ? FLAGS_TOPOLOGY_MODE_PT_PT
8348 : FLAGS_TOPOLOGY_MODE_LOOP);
8352 if (phba->hba_flag & HBA_PERSISTENT_TOPO) {
8353 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8354 "2020 Using persistent topology value [%s]",
8355 lpfc_topo_to_str[phba->cfg_topology]);
8357 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8358 "2021 Invalid topology values from FW "
8359 "Using driver parameter defined value [%s]",
8360 lpfc_topo_to_str[phba->cfg_topology]);
8365 * lpfc_sli4_read_config - Get the config parameters.
8366 * @phba: pointer to lpfc hba data structure.
8368 * This routine is invoked to read the configuration parameters from the HBA.
8369 * The configuration parameters are used to set the base and maximum values
8370 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
8371 * allocation for the port.
8375 * -ENOMEM - No available memory
8376 * -EIO - The mailbox failed to complete successfully.
8379 lpfc_sli4_read_config(struct lpfc_hba *phba)
8382 struct lpfc_mbx_read_config *rd_config;
8383 union lpfc_sli4_cfg_shdr *shdr;
8384 uint32_t shdr_status, shdr_add_status;
8385 struct lpfc_mbx_get_func_cfg *get_func_cfg;
8386 struct lpfc_rsrc_desc_fcfcoe *desc;
8388 uint16_t forced_link_speed;
8389 uint32_t if_type, qmin;
8390 int length, i, rc = 0, rc2;
8392 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8394 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8395 "2011 Unable to allocate memory for issuing "
8396 "SLI_CONFIG_SPECIAL mailbox command\n");
8400 lpfc_read_config(phba, pmb);
8402 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8403 if (rc != MBX_SUCCESS) {
8404 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8405 "2012 Mailbox failed , mbxCmd x%x "
8406 "READ_CONFIG, mbxStatus x%x\n",
8407 bf_get(lpfc_mqe_command, &pmb->u.mqe),
8408 bf_get(lpfc_mqe_status, &pmb->u.mqe));
8411 rd_config = &pmb->u.mqe.un.rd_config;
8412 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
8413 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
8414 phba->sli4_hba.lnk_info.lnk_tp =
8415 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
8416 phba->sli4_hba.lnk_info.lnk_no =
8417 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
8418 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8419 "3081 lnk_type:%d, lnk_numb:%d\n",
8420 phba->sli4_hba.lnk_info.lnk_tp,
8421 phba->sli4_hba.lnk_info.lnk_no);
8423 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8424 "3082 Mailbox (x%x) returned ldv:x0\n",
8425 bf_get(lpfc_mqe_command, &pmb->u.mqe));
8426 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
8427 phba->bbcredit_support = 1;
8428 phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
8431 phba->sli4_hba.conf_trunk =
8432 bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
8433 phba->sli4_hba.extents_in_use =
8434 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
8435 phba->sli4_hba.max_cfg_param.max_xri =
8436 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
8437 /* Reduce resource usage in kdump environment */
8438 if (is_kdump_kernel() &&
8439 phba->sli4_hba.max_cfg_param.max_xri > 512)
8440 phba->sli4_hba.max_cfg_param.max_xri = 512;
8441 phba->sli4_hba.max_cfg_param.xri_base =
8442 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
8443 phba->sli4_hba.max_cfg_param.max_vpi =
8444 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
8445 /* Limit the max we support */
8446 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
8447 phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
8448 phba->sli4_hba.max_cfg_param.vpi_base =
8449 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
8450 phba->sli4_hba.max_cfg_param.max_rpi =
8451 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
8452 phba->sli4_hba.max_cfg_param.rpi_base =
8453 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
8454 phba->sli4_hba.max_cfg_param.max_vfi =
8455 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
8456 phba->sli4_hba.max_cfg_param.vfi_base =
8457 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
8458 phba->sli4_hba.max_cfg_param.max_fcfi =
8459 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
8460 phba->sli4_hba.max_cfg_param.max_eq =
8461 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
8462 phba->sli4_hba.max_cfg_param.max_rq =
8463 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
8464 phba->sli4_hba.max_cfg_param.max_wq =
8465 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
8466 phba->sli4_hba.max_cfg_param.max_cq =
8467 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
8468 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
8469 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
8470 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
8471 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
8472 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
8473 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
8474 phba->max_vports = phba->max_vpi;
8475 lpfc_map_topology(phba, rd_config);
8476 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8477 "2003 cfg params Extents? %d "
8482 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n",
8483 phba->sli4_hba.extents_in_use,
8484 phba->sli4_hba.max_cfg_param.xri_base,
8485 phba->sli4_hba.max_cfg_param.max_xri,
8486 phba->sli4_hba.max_cfg_param.vpi_base,
8487 phba->sli4_hba.max_cfg_param.max_vpi,
8488 phba->sli4_hba.max_cfg_param.vfi_base,
8489 phba->sli4_hba.max_cfg_param.max_vfi,
8490 phba->sli4_hba.max_cfg_param.rpi_base,
8491 phba->sli4_hba.max_cfg_param.max_rpi,
8492 phba->sli4_hba.max_cfg_param.max_fcfi,
8493 phba->sli4_hba.max_cfg_param.max_eq,
8494 phba->sli4_hba.max_cfg_param.max_cq,
8495 phba->sli4_hba.max_cfg_param.max_wq,
8496 phba->sli4_hba.max_cfg_param.max_rq);
8499 * Calculate queue resources based on how
8500 * many WQ/CQ/EQs are available.
8502 qmin = phba->sli4_hba.max_cfg_param.max_wq;
8503 if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
8504 qmin = phba->sli4_hba.max_cfg_param.max_cq;
8505 if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
8506 qmin = phba->sli4_hba.max_cfg_param.max_eq;
8508 * Whats left after this can go toward NVME / FCP.
8509 * The minus 4 accounts for ELS, NVME LS, MBOX
8510 * plus one extra. When configured for
8511 * NVMET, FCP io channel WQs are not created.
8515 /* Check to see if there is enough for NVME */
8516 if ((phba->cfg_irq_chann > qmin) ||
8517 (phba->cfg_hdw_queue > qmin)) {
8518 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8519 "2005 Reducing Queues: "
8520 "WQ %d CQ %d EQ %d: min %d: "
8522 phba->sli4_hba.max_cfg_param.max_wq,
8523 phba->sli4_hba.max_cfg_param.max_cq,
8524 phba->sli4_hba.max_cfg_param.max_eq,
8525 qmin, phba->cfg_irq_chann,
8526 phba->cfg_hdw_queue);
8528 if (phba->cfg_irq_chann > qmin)
8529 phba->cfg_irq_chann = qmin;
8530 if (phba->cfg_hdw_queue > qmin)
8531 phba->cfg_hdw_queue = qmin;
8538 /* Update link speed if forced link speed is supported */
8539 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8540 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
8542 bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
8543 if (forced_link_speed) {
8544 phba->hba_flag |= HBA_FORCED_LINK_SPEED;
8546 switch (forced_link_speed) {
8548 phba->cfg_link_speed =
8549 LPFC_USER_LINK_SPEED_1G;
8552 phba->cfg_link_speed =
8553 LPFC_USER_LINK_SPEED_2G;
8556 phba->cfg_link_speed =
8557 LPFC_USER_LINK_SPEED_4G;
8560 phba->cfg_link_speed =
8561 LPFC_USER_LINK_SPEED_8G;
8563 case LINK_SPEED_10G:
8564 phba->cfg_link_speed =
8565 LPFC_USER_LINK_SPEED_10G;
8567 case LINK_SPEED_16G:
8568 phba->cfg_link_speed =
8569 LPFC_USER_LINK_SPEED_16G;
8571 case LINK_SPEED_32G:
8572 phba->cfg_link_speed =
8573 LPFC_USER_LINK_SPEED_32G;
8575 case LINK_SPEED_64G:
8576 phba->cfg_link_speed =
8577 LPFC_USER_LINK_SPEED_64G;
8580 phba->cfg_link_speed =
8581 LPFC_USER_LINK_SPEED_AUTO;
8584 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8585 "0047 Unrecognized link "
8588 phba->cfg_link_speed =
8589 LPFC_USER_LINK_SPEED_AUTO;
8594 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
8595 length = phba->sli4_hba.max_cfg_param.max_xri -
8596 lpfc_sli4_get_els_iocb_cnt(phba);
8597 if (phba->cfg_hba_queue_depth > length) {
8598 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8599 "3361 HBA queue depth changed from %d to %d\n",
8600 phba->cfg_hba_queue_depth, length);
8601 phba->cfg_hba_queue_depth = length;
8604 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
8605 LPFC_SLI_INTF_IF_TYPE_2)
8608 /* get the pf# and vf# for SLI4 if_type 2 port */
8609 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
8610 sizeof(struct lpfc_sli4_cfg_mhdr));
8611 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
8612 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
8613 length, LPFC_SLI4_MBX_EMBED);
8615 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8616 shdr = (union lpfc_sli4_cfg_shdr *)
8617 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
8618 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8619 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8620 if (rc2 || shdr_status || shdr_add_status) {
8621 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8622 "3026 Mailbox failed , mbxCmd x%x "
8623 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
8624 bf_get(lpfc_mqe_command, &pmb->u.mqe),
8625 bf_get(lpfc_mqe_status, &pmb->u.mqe));
8629 /* search for fc_fcoe resrouce descriptor */
8630 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
8632 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
8633 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
8634 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
8635 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
8636 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
8637 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
8640 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
8641 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
8642 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
8643 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
8644 phba->sli4_hba.iov.pf_number =
8645 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
8646 phba->sli4_hba.iov.vf_number =
8647 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
8652 if (i < LPFC_RSRC_DESC_MAX_NUM)
8653 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8654 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
8655 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
8656 phba->sli4_hba.iov.vf_number);
8658 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8659 "3028 GET_FUNCTION_CONFIG: failed to find "
8660 "Resource Descriptor:x%x\n",
8661 LPFC_RSRC_DESC_TYPE_FCFCOE);
8664 mempool_free(pmb, phba->mbox_mem_pool);
8669 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
8670 * @phba: pointer to lpfc hba data structure.
8672 * This routine is invoked to setup the port-side endian order when
8673 * the port if_type is 0. This routine has no function for other
8678 * -ENOMEM - No available memory
8679 * -EIO - The mailbox failed to complete successfully.
8682 lpfc_setup_endian_order(struct lpfc_hba *phba)
8684 LPFC_MBOXQ_t *mboxq;
8685 uint32_t if_type, rc = 0;
8686 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
8687 HOST_ENDIAN_HIGH_WORD1};
8689 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8691 case LPFC_SLI_INTF_IF_TYPE_0:
8692 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8695 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8696 "0492 Unable to allocate memory for "
8697 "issuing SLI_CONFIG_SPECIAL mailbox "
8703 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
8704 * two words to contain special data values and no other data.
8706 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
8707 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
8708 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8709 if (rc != MBX_SUCCESS) {
8710 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8711 "0493 SLI_CONFIG_SPECIAL mailbox "
8712 "failed with status x%x\n",
8716 mempool_free(mboxq, phba->mbox_mem_pool);
8718 case LPFC_SLI_INTF_IF_TYPE_6:
8719 case LPFC_SLI_INTF_IF_TYPE_2:
8720 case LPFC_SLI_INTF_IF_TYPE_1:
8728 * lpfc_sli4_queue_verify - Verify and update EQ counts
8729 * @phba: pointer to lpfc hba data structure.
8731 * This routine is invoked to check the user settable queue counts for EQs.
8732 * After this routine is called the counts will be set to valid values that
8733 * adhere to the constraints of the system's interrupt vectors and the port's
8738 * -ENOMEM - No available memory
8741 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
8744 * Sanity check for configured queue parameters against the run-time
8748 if (phba->nvmet_support) {
8749 if (phba->cfg_hdw_queue < phba->cfg_nvmet_mrq)
8750 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
8751 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
8752 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
8755 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8756 "2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
8757 phba->cfg_hdw_queue, phba->cfg_irq_chann,
8758 phba->cfg_nvmet_mrq);
8760 /* Get EQ depth from module parameter, fake the default for now */
8761 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8762 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8764 /* Get CQ depth from module parameter, fake the default for now */
8765 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8766 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8771 lpfc_alloc_io_wq_cq(struct lpfc_hba *phba, int idx)
8773 struct lpfc_queue *qdesc;
8777 cpu = lpfc_find_cpu_handle(phba, idx, LPFC_FIND_BY_HDWQ);
8778 /* Create Fast Path IO CQs */
8779 if (phba->enab_exp_wqcq_pages)
8780 /* Increase the CQ size when WQEs contain an embedded cdb */
8781 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8782 phba->sli4_hba.cq_esize,
8783 LPFC_CQE_EXP_COUNT, cpu);
8786 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8787 phba->sli4_hba.cq_esize,
8788 phba->sli4_hba.cq_ecount, cpu);
8790 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8791 "0499 Failed allocate fast-path IO CQ (%d)\n", idx);
8794 qdesc->qe_valid = 1;
8797 phba->sli4_hba.hdwq[idx].io_cq = qdesc;
8799 /* Create Fast Path IO WQs */
8800 if (phba->enab_exp_wqcq_pages) {
8801 /* Increase the WQ size when WQEs contain an embedded cdb */
8802 wqesize = (phba->fcp_embed_io) ?
8803 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
8804 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8806 LPFC_WQE_EXP_COUNT, cpu);
8808 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8809 phba->sli4_hba.wq_esize,
8810 phba->sli4_hba.wq_ecount, cpu);
8813 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8814 "0503 Failed allocate fast-path IO WQ (%d)\n",
8820 phba->sli4_hba.hdwq[idx].io_wq = qdesc;
8821 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8826 * lpfc_sli4_queue_create - Create all the SLI4 queues
8827 * @phba: pointer to lpfc hba data structure.
8829 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
8830 * operation. For each SLI4 queue type, the parameters such as queue entry
8831 * count (queue depth) shall be taken from the module parameter. For now,
8832 * we just use some constant number as place holder.
8836 * -ENOMEM - No availble memory
8837 * -EIO - The mailbox failed to complete successfully.
8840 lpfc_sli4_queue_create(struct lpfc_hba *phba)
8842 struct lpfc_queue *qdesc;
8843 int idx, cpu, eqcpu;
8844 struct lpfc_sli4_hdw_queue *qp;
8845 struct lpfc_vector_map_info *cpup;
8846 struct lpfc_vector_map_info *eqcpup;
8847 struct lpfc_eq_intr_info *eqi;
8850 * Create HBA Record arrays.
8851 * Both NVME and FCP will share that same vectors / EQs
8853 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
8854 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
8855 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
8856 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
8857 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
8858 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
8859 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8860 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8861 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8862 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8864 if (!phba->sli4_hba.hdwq) {
8865 phba->sli4_hba.hdwq = kcalloc(
8866 phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue),
8868 if (!phba->sli4_hba.hdwq) {
8869 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8870 "6427 Failed allocate memory for "
8871 "fast-path Hardware Queue array\n");
8874 /* Prepare hardware queues to take IO buffers */
8875 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8876 qp = &phba->sli4_hba.hdwq[idx];
8877 spin_lock_init(&qp->io_buf_list_get_lock);
8878 spin_lock_init(&qp->io_buf_list_put_lock);
8879 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
8880 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
8881 qp->get_io_bufs = 0;
8882 qp->put_io_bufs = 0;
8883 qp->total_io_bufs = 0;
8884 spin_lock_init(&qp->abts_io_buf_list_lock);
8885 INIT_LIST_HEAD(&qp->lpfc_abts_io_buf_list);
8886 qp->abts_scsi_io_bufs = 0;
8887 qp->abts_nvme_io_bufs = 0;
8888 INIT_LIST_HEAD(&qp->sgl_list);
8889 INIT_LIST_HEAD(&qp->cmd_rsp_buf_list);
8890 spin_lock_init(&qp->hdwq_lock);
8894 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8895 if (phba->nvmet_support) {
8896 phba->sli4_hba.nvmet_cqset = kcalloc(
8897 phba->cfg_nvmet_mrq,
8898 sizeof(struct lpfc_queue *),
8900 if (!phba->sli4_hba.nvmet_cqset) {
8901 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8902 "3121 Fail allocate memory for "
8903 "fast-path CQ set array\n");
8906 phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
8907 phba->cfg_nvmet_mrq,
8908 sizeof(struct lpfc_queue *),
8910 if (!phba->sli4_hba.nvmet_mrq_hdr) {
8911 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8912 "3122 Fail allocate memory for "
8913 "fast-path RQ set hdr array\n");
8916 phba->sli4_hba.nvmet_mrq_data = kcalloc(
8917 phba->cfg_nvmet_mrq,
8918 sizeof(struct lpfc_queue *),
8920 if (!phba->sli4_hba.nvmet_mrq_data) {
8921 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8922 "3124 Fail allocate memory for "
8923 "fast-path RQ set data array\n");
8929 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8931 /* Create HBA Event Queues (EQs) */
8932 for_each_present_cpu(cpu) {
8933 /* We only want to create 1 EQ per vector, even though
8934 * multiple CPUs might be using that vector. so only
8935 * selects the CPUs that are LPFC_CPU_FIRST_IRQ.
8937 cpup = &phba->sli4_hba.cpu_map[cpu];
8938 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
8941 /* Get a ptr to the Hardware Queue associated with this CPU */
8942 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
8944 /* Allocate an EQ */
8945 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8946 phba->sli4_hba.eq_esize,
8947 phba->sli4_hba.eq_ecount, cpu);
8949 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8950 "0497 Failed allocate EQ (%d)\n",
8954 qdesc->qe_valid = 1;
8955 qdesc->hdwq = cpup->hdwq;
8956 qdesc->chann = cpu; /* First CPU this EQ is affinitized to */
8957 qdesc->last_cpu = qdesc->chann;
8959 /* Save the allocated EQ in the Hardware Queue */
8962 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
8963 list_add(&qdesc->cpu_list, &eqi->list);
8966 /* Now we need to populate the other Hardware Queues, that share
8967 * an IRQ vector, with the associated EQ ptr.
8969 for_each_present_cpu(cpu) {
8970 cpup = &phba->sli4_hba.cpu_map[cpu];
8972 /* Check for EQ already allocated in previous loop */
8973 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
8976 /* Check for multiple CPUs per hdwq */
8977 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
8981 /* We need to share an EQ for this hdwq */
8982 eqcpu = lpfc_find_cpu_handle(phba, cpup->eq, LPFC_FIND_BY_EQ);
8983 eqcpup = &phba->sli4_hba.cpu_map[eqcpu];
8984 qp->hba_eq = phba->sli4_hba.hdwq[eqcpup->hdwq].hba_eq;
8987 /* Allocate IO Path SLI4 CQ/WQs */
8988 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8989 if (lpfc_alloc_io_wq_cq(phba, idx))
8993 if (phba->nvmet_support) {
8994 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8995 cpu = lpfc_find_cpu_handle(phba, idx,
8997 qdesc = lpfc_sli4_queue_alloc(phba,
8998 LPFC_DEFAULT_PAGE_SIZE,
8999 phba->sli4_hba.cq_esize,
9000 phba->sli4_hba.cq_ecount,
9003 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9004 "3142 Failed allocate NVME "
9005 "CQ Set (%d)\n", idx);
9008 qdesc->qe_valid = 1;
9011 phba->sli4_hba.nvmet_cqset[idx] = qdesc;
9016 * Create Slow Path Completion Queues (CQs)
9019 cpu = lpfc_find_cpu_handle(phba, 0, LPFC_FIND_BY_EQ);
9020 /* Create slow-path Mailbox Command Complete Queue */
9021 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9022 phba->sli4_hba.cq_esize,
9023 phba->sli4_hba.cq_ecount, cpu);
9025 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9026 "0500 Failed allocate slow-path mailbox CQ\n");
9029 qdesc->qe_valid = 1;
9030 phba->sli4_hba.mbx_cq = qdesc;
9032 /* Create slow-path ELS Complete Queue */
9033 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9034 phba->sli4_hba.cq_esize,
9035 phba->sli4_hba.cq_ecount, cpu);
9037 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9038 "0501 Failed allocate slow-path ELS CQ\n");
9041 qdesc->qe_valid = 1;
9043 phba->sli4_hba.els_cq = qdesc;
9047 * Create Slow Path Work Queues (WQs)
9050 /* Create Mailbox Command Queue */
9052 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9053 phba->sli4_hba.mq_esize,
9054 phba->sli4_hba.mq_ecount, cpu);
9056 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9057 "0505 Failed allocate slow-path MQ\n");
9061 phba->sli4_hba.mbx_wq = qdesc;
9064 * Create ELS Work Queues
9067 /* Create slow-path ELS Work Queue */
9068 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9069 phba->sli4_hba.wq_esize,
9070 phba->sli4_hba.wq_ecount, cpu);
9072 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9073 "0504 Failed allocate slow-path ELS WQ\n");
9077 phba->sli4_hba.els_wq = qdesc;
9078 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
9080 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9081 /* Create NVME LS Complete Queue */
9082 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9083 phba->sli4_hba.cq_esize,
9084 phba->sli4_hba.cq_ecount, cpu);
9086 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9087 "6079 Failed allocate NVME LS CQ\n");
9091 qdesc->qe_valid = 1;
9092 phba->sli4_hba.nvmels_cq = qdesc;
9094 /* Create NVME LS Work Queue */
9095 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9096 phba->sli4_hba.wq_esize,
9097 phba->sli4_hba.wq_ecount, cpu);
9099 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9100 "6080 Failed allocate NVME LS WQ\n");
9104 phba->sli4_hba.nvmels_wq = qdesc;
9105 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
9109 * Create Receive Queue (RQ)
9112 /* Create Receive Queue for header */
9113 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9114 phba->sli4_hba.rq_esize,
9115 phba->sli4_hba.rq_ecount, cpu);
9117 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9118 "0506 Failed allocate receive HRQ\n");
9121 phba->sli4_hba.hdr_rq = qdesc;
9123 /* Create Receive Queue for data */
9124 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9125 phba->sli4_hba.rq_esize,
9126 phba->sli4_hba.rq_ecount, cpu);
9128 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9129 "0507 Failed allocate receive DRQ\n");
9132 phba->sli4_hba.dat_rq = qdesc;
9134 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
9135 phba->nvmet_support) {
9136 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
9137 cpu = lpfc_find_cpu_handle(phba, idx,
9139 /* Create NVMET Receive Queue for header */
9140 qdesc = lpfc_sli4_queue_alloc(phba,
9141 LPFC_DEFAULT_PAGE_SIZE,
9142 phba->sli4_hba.rq_esize,
9143 LPFC_NVMET_RQE_DEF_COUNT,
9146 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9147 "3146 Failed allocate "
9152 phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
9154 /* Only needed for header of RQ pair */
9155 qdesc->rqbp = kzalloc_node(sizeof(*qdesc->rqbp),
9158 if (qdesc->rqbp == NULL) {
9159 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9160 "6131 Failed allocate "
9165 /* Put list in known state in case driver load fails. */
9166 INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
9168 /* Create NVMET Receive Queue for data */
9169 qdesc = lpfc_sli4_queue_alloc(phba,
9170 LPFC_DEFAULT_PAGE_SIZE,
9171 phba->sli4_hba.rq_esize,
9172 LPFC_NVMET_RQE_DEF_COUNT,
9175 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9176 "3156 Failed allocate "
9181 phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
9185 /* Clear NVME stats */
9186 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9187 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9188 memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
9189 sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
9193 /* Clear SCSI stats */
9194 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
9195 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9196 memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
9197 sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
9204 lpfc_sli4_queue_destroy(phba);
9209 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
9212 lpfc_sli4_queue_free(*qp);
9218 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
9225 for (idx = 0; idx < max; idx++)
9226 __lpfc_sli4_release_queue(&(*qs)[idx]);
9233 lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
9235 struct lpfc_sli4_hdw_queue *hdwq;
9236 struct lpfc_queue *eq;
9239 hdwq = phba->sli4_hba.hdwq;
9241 /* Loop thru all Hardware Queues */
9242 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9243 /* Free the CQ/WQ corresponding to the Hardware Queue */
9244 lpfc_sli4_queue_free(hdwq[idx].io_cq);
9245 lpfc_sli4_queue_free(hdwq[idx].io_wq);
9246 hdwq[idx].io_cq = NULL;
9247 hdwq[idx].io_wq = NULL;
9248 if (phba->cfg_xpsgl && !phba->nvmet_support)
9249 lpfc_free_sgl_per_hdwq(phba, &hdwq[idx]);
9250 lpfc_free_cmd_rsp_buf_per_hdwq(phba, &hdwq[idx]);
9252 /* Loop thru all IRQ vectors */
9253 for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
9254 /* Free the EQ corresponding to the IRQ vector */
9255 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
9256 lpfc_sli4_queue_free(eq);
9257 phba->sli4_hba.hba_eq_hdl[idx].eq = NULL;
9262 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
9263 * @phba: pointer to lpfc hba data structure.
9265 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
9270 * -ENOMEM - No available memory
9271 * -EIO - The mailbox failed to complete successfully.
9274 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
9277 * Set FREE_INIT before beginning to free the queues.
9278 * Wait until the users of queues to acknowledge to
9279 * release queues by clearing FREE_WAIT.
9281 spin_lock_irq(&phba->hbalock);
9282 phba->sli.sli_flag |= LPFC_QUEUE_FREE_INIT;
9283 while (phba->sli.sli_flag & LPFC_QUEUE_FREE_WAIT) {
9284 spin_unlock_irq(&phba->hbalock);
9286 spin_lock_irq(&phba->hbalock);
9288 spin_unlock_irq(&phba->hbalock);
9290 lpfc_sli4_cleanup_poll_list(phba);
9292 /* Release HBA eqs */
9293 if (phba->sli4_hba.hdwq)
9294 lpfc_sli4_release_hdwq(phba);
9296 if (phba->nvmet_support) {
9297 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
9298 phba->cfg_nvmet_mrq);
9300 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
9301 phba->cfg_nvmet_mrq);
9302 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
9303 phba->cfg_nvmet_mrq);
9306 /* Release mailbox command work queue */
9307 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
9309 /* Release ELS work queue */
9310 __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
9312 /* Release ELS work queue */
9313 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
9315 /* Release unsolicited receive queue */
9316 __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
9317 __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
9319 /* Release ELS complete queue */
9320 __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
9322 /* Release NVME LS complete queue */
9323 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
9325 /* Release mailbox command complete queue */
9326 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
9328 /* Everything on this list has been freed */
9329 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
9331 /* Done with freeing the queues */
9332 spin_lock_irq(&phba->hbalock);
9333 phba->sli.sli_flag &= ~LPFC_QUEUE_FREE_INIT;
9334 spin_unlock_irq(&phba->hbalock);
9338 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
9340 struct lpfc_rqb *rqbp;
9341 struct lpfc_dmabuf *h_buf;
9342 struct rqb_dmabuf *rqb_buffer;
9345 while (!list_empty(&rqbp->rqb_buffer_list)) {
9346 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
9347 struct lpfc_dmabuf, list);
9349 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
9350 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
9351 rqbp->buffer_count--;
9357 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
9358 struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
9359 int qidx, uint32_t qtype)
9361 struct lpfc_sli_ring *pring;
9364 if (!eq || !cq || !wq) {
9365 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9366 "6085 Fast-path %s (%d) not allocated\n",
9367 ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
9371 /* create the Cq first */
9372 rc = lpfc_cq_create(phba, cq, eq,
9373 (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
9375 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9376 "6086 Failed setup of CQ (%d), rc = 0x%x\n",
9377 qidx, (uint32_t)rc);
9381 if (qtype != LPFC_MBOX) {
9382 /* Setup cq_map for fast lookup */
9384 *cq_map = cq->queue_id;
9386 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9387 "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
9388 qidx, cq->queue_id, qidx, eq->queue_id);
9391 rc = lpfc_wq_create(phba, wq, cq, qtype);
9393 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9394 "4618 Fail setup fastpath WQ (%d), rc = 0x%x\n",
9395 qidx, (uint32_t)rc);
9396 /* no need to tear down cq - caller will do so */
9400 /* Bind this CQ/WQ to the NVME ring */
9402 pring->sli.sli4.wqp = (void *)wq;
9405 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9406 "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
9407 qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
9409 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
9411 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9412 "0539 Failed setup of slow-path MQ: "
9414 /* no need to tear down cq - caller will do so */
9418 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9419 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
9420 phba->sli4_hba.mbx_wq->queue_id,
9421 phba->sli4_hba.mbx_cq->queue_id);
9428 * lpfc_setup_cq_lookup - Setup the CQ lookup table
9429 * @phba: pointer to lpfc hba data structure.
9431 * This routine will populate the cq_lookup table by all
9432 * available CQ queue_id's.
9435 lpfc_setup_cq_lookup(struct lpfc_hba *phba)
9437 struct lpfc_queue *eq, *childq;
9440 memset(phba->sli4_hba.cq_lookup, 0,
9441 (sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
9442 /* Loop thru all IRQ vectors */
9443 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9444 /* Get the EQ corresponding to the IRQ vector */
9445 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
9448 /* Loop through all CQs associated with that EQ */
9449 list_for_each_entry(childq, &eq->child_list, list) {
9450 if (childq->queue_id > phba->sli4_hba.cq_max)
9452 if (childq->subtype == LPFC_IO)
9453 phba->sli4_hba.cq_lookup[childq->queue_id] =
9460 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
9461 * @phba: pointer to lpfc hba data structure.
9463 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
9468 * -ENOMEM - No available memory
9469 * -EIO - The mailbox failed to complete successfully.
9472 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
9474 uint32_t shdr_status, shdr_add_status;
9475 union lpfc_sli4_cfg_shdr *shdr;
9476 struct lpfc_vector_map_info *cpup;
9477 struct lpfc_sli4_hdw_queue *qp;
9478 LPFC_MBOXQ_t *mboxq;
9480 uint32_t length, usdelay;
9483 /* Check for dual-ULP support */
9484 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9486 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9487 "3249 Unable to allocate memory for "
9488 "QUERY_FW_CFG mailbox command\n");
9491 length = (sizeof(struct lpfc_mbx_query_fw_config) -
9492 sizeof(struct lpfc_sli4_cfg_mhdr));
9493 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9494 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
9495 length, LPFC_SLI4_MBX_EMBED);
9497 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9499 shdr = (union lpfc_sli4_cfg_shdr *)
9500 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9501 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9502 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9503 if (shdr_status || shdr_add_status || rc) {
9504 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9505 "3250 QUERY_FW_CFG mailbox failed with status "
9506 "x%x add_status x%x, mbx status x%x\n",
9507 shdr_status, shdr_add_status, rc);
9508 if (rc != MBX_TIMEOUT)
9509 mempool_free(mboxq, phba->mbox_mem_pool);
9514 phba->sli4_hba.fw_func_mode =
9515 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
9516 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
9517 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
9518 phba->sli4_hba.physical_port =
9519 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
9520 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9521 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
9522 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
9523 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
9525 if (rc != MBX_TIMEOUT)
9526 mempool_free(mboxq, phba->mbox_mem_pool);
9529 * Set up HBA Event Queues (EQs)
9531 qp = phba->sli4_hba.hdwq;
9533 /* Set up HBA event queue */
9535 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9536 "3147 Fast-path EQs not allocated\n");
9541 /* Loop thru all IRQ vectors */
9542 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9543 /* Create HBA Event Queues (EQs) in order */
9544 for_each_present_cpu(cpu) {
9545 cpup = &phba->sli4_hba.cpu_map[cpu];
9547 /* Look for the CPU thats using that vector with
9548 * LPFC_CPU_FIRST_IRQ set.
9550 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
9552 if (qidx != cpup->eq)
9555 /* Create an EQ for that vector */
9556 rc = lpfc_eq_create(phba, qp[cpup->hdwq].hba_eq,
9557 phba->cfg_fcp_imax);
9559 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9560 "0523 Failed setup of fast-path"
9561 " EQ (%d), rc = 0x%x\n",
9562 cpup->eq, (uint32_t)rc);
9566 /* Save the EQ for that vector in the hba_eq_hdl */
9567 phba->sli4_hba.hba_eq_hdl[cpup->eq].eq =
9568 qp[cpup->hdwq].hba_eq;
9570 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9571 "2584 HBA EQ setup: queue[%d]-id=%d\n",
9573 qp[cpup->hdwq].hba_eq->queue_id);
9577 /* Loop thru all Hardware Queues */
9578 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9579 cpu = lpfc_find_cpu_handle(phba, qidx, LPFC_FIND_BY_HDWQ);
9580 cpup = &phba->sli4_hba.cpu_map[cpu];
9582 /* Create the CQ/WQ corresponding to the Hardware Queue */
9583 rc = lpfc_create_wq_cq(phba,
9584 phba->sli4_hba.hdwq[cpup->hdwq].hba_eq,
9587 &phba->sli4_hba.hdwq[qidx].io_cq_map,
9591 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9592 "0535 Failed to setup fastpath "
9593 "IO WQ/CQ (%d), rc = 0x%x\n",
9594 qidx, (uint32_t)rc);
9600 * Set up Slow Path Complete Queues (CQs)
9603 /* Set up slow-path MBOX CQ/MQ */
9605 if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
9606 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9607 "0528 %s not allocated\n",
9608 phba->sli4_hba.mbx_cq ?
9609 "Mailbox WQ" : "Mailbox CQ");
9614 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9615 phba->sli4_hba.mbx_cq,
9616 phba->sli4_hba.mbx_wq,
9617 NULL, 0, LPFC_MBOX);
9619 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9620 "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
9624 if (phba->nvmet_support) {
9625 if (!phba->sli4_hba.nvmet_cqset) {
9626 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9627 "3165 Fast-path NVME CQ Set "
9628 "array not allocated\n");
9632 if (phba->cfg_nvmet_mrq > 1) {
9633 rc = lpfc_cq_create_set(phba,
9634 phba->sli4_hba.nvmet_cqset,
9636 LPFC_WCQ, LPFC_NVMET);
9638 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9639 "3164 Failed setup of NVME CQ "
9645 /* Set up NVMET Receive Complete Queue */
9646 rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
9648 LPFC_WCQ, LPFC_NVMET);
9650 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9651 "6089 Failed setup NVMET CQ: "
9652 "rc = 0x%x\n", (uint32_t)rc);
9655 phba->sli4_hba.nvmet_cqset[0]->chann = 0;
9657 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9658 "6090 NVMET CQ setup: cq-id=%d, "
9659 "parent eq-id=%d\n",
9660 phba->sli4_hba.nvmet_cqset[0]->queue_id,
9661 qp[0].hba_eq->queue_id);
9665 /* Set up slow-path ELS WQ/CQ */
9666 if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
9667 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9668 "0530 ELS %s not allocated\n",
9669 phba->sli4_hba.els_cq ? "WQ" : "CQ");
9673 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9674 phba->sli4_hba.els_cq,
9675 phba->sli4_hba.els_wq,
9678 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9679 "0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
9683 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9684 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
9685 phba->sli4_hba.els_wq->queue_id,
9686 phba->sli4_hba.els_cq->queue_id);
9688 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9689 /* Set up NVME LS Complete Queue */
9690 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
9691 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9692 "6091 LS %s not allocated\n",
9693 phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
9697 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9698 phba->sli4_hba.nvmels_cq,
9699 phba->sli4_hba.nvmels_wq,
9700 NULL, 0, LPFC_NVME_LS);
9702 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9703 "0526 Failed setup of NVVME LS WQ/CQ: "
9704 "rc = 0x%x\n", (uint32_t)rc);
9708 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9709 "6096 ELS WQ setup: wq-id=%d, "
9710 "parent cq-id=%d\n",
9711 phba->sli4_hba.nvmels_wq->queue_id,
9712 phba->sli4_hba.nvmels_cq->queue_id);
9716 * Create NVMET Receive Queue (RQ)
9718 if (phba->nvmet_support) {
9719 if ((!phba->sli4_hba.nvmet_cqset) ||
9720 (!phba->sli4_hba.nvmet_mrq_hdr) ||
9721 (!phba->sli4_hba.nvmet_mrq_data)) {
9722 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9723 "6130 MRQ CQ Queues not "
9728 if (phba->cfg_nvmet_mrq > 1) {
9729 rc = lpfc_mrq_create(phba,
9730 phba->sli4_hba.nvmet_mrq_hdr,
9731 phba->sli4_hba.nvmet_mrq_data,
9732 phba->sli4_hba.nvmet_cqset,
9735 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9736 "6098 Failed setup of NVMET "
9743 rc = lpfc_rq_create(phba,
9744 phba->sli4_hba.nvmet_mrq_hdr[0],
9745 phba->sli4_hba.nvmet_mrq_data[0],
9746 phba->sli4_hba.nvmet_cqset[0],
9749 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9750 "6057 Failed setup of NVMET "
9751 "Receive Queue: rc = 0x%x\n",
9757 phba, KERN_INFO, LOG_INIT,
9758 "6099 NVMET RQ setup: hdr-rq-id=%d, "
9759 "dat-rq-id=%d parent cq-id=%d\n",
9760 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
9761 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
9762 phba->sli4_hba.nvmet_cqset[0]->queue_id);
9767 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
9768 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9769 "0540 Receive Queue not allocated\n");
9774 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
9775 phba->sli4_hba.els_cq, LPFC_USOL);
9777 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9778 "0541 Failed setup of Receive Queue: "
9779 "rc = 0x%x\n", (uint32_t)rc);
9783 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9784 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
9785 "parent cq-id=%d\n",
9786 phba->sli4_hba.hdr_rq->queue_id,
9787 phba->sli4_hba.dat_rq->queue_id,
9788 phba->sli4_hba.els_cq->queue_id);
9790 if (phba->cfg_fcp_imax)
9791 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
9795 for (qidx = 0; qidx < phba->cfg_irq_chann;
9796 qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
9797 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
9800 if (phba->sli4_hba.cq_max) {
9801 kfree(phba->sli4_hba.cq_lookup);
9802 phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1),
9803 sizeof(struct lpfc_queue *), GFP_KERNEL);
9804 if (!phba->sli4_hba.cq_lookup) {
9805 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9806 "0549 Failed setup of CQ Lookup table: "
9807 "size 0x%x\n", phba->sli4_hba.cq_max);
9811 lpfc_setup_cq_lookup(phba);
9816 lpfc_sli4_queue_unset(phba);
9822 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
9823 * @phba: pointer to lpfc hba data structure.
9825 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
9830 * -ENOMEM - No available memory
9831 * -EIO - The mailbox failed to complete successfully.
9834 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
9836 struct lpfc_sli4_hdw_queue *qp;
9837 struct lpfc_queue *eq;
9840 /* Unset mailbox command work queue */
9841 if (phba->sli4_hba.mbx_wq)
9842 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
9844 /* Unset NVME LS work queue */
9845 if (phba->sli4_hba.nvmels_wq)
9846 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
9848 /* Unset ELS work queue */
9849 if (phba->sli4_hba.els_wq)
9850 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
9852 /* Unset unsolicited receive queue */
9853 if (phba->sli4_hba.hdr_rq)
9854 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
9855 phba->sli4_hba.dat_rq);
9857 /* Unset mailbox command complete queue */
9858 if (phba->sli4_hba.mbx_cq)
9859 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
9861 /* Unset ELS complete queue */
9862 if (phba->sli4_hba.els_cq)
9863 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
9865 /* Unset NVME LS complete queue */
9866 if (phba->sli4_hba.nvmels_cq)
9867 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
9869 if (phba->nvmet_support) {
9870 /* Unset NVMET MRQ queue */
9871 if (phba->sli4_hba.nvmet_mrq_hdr) {
9872 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9875 phba->sli4_hba.nvmet_mrq_hdr[qidx],
9876 phba->sli4_hba.nvmet_mrq_data[qidx]);
9879 /* Unset NVMET CQ Set complete queue */
9880 if (phba->sli4_hba.nvmet_cqset) {
9881 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9883 phba, phba->sli4_hba.nvmet_cqset[qidx]);
9887 /* Unset fast-path SLI4 queues */
9888 if (phba->sli4_hba.hdwq) {
9889 /* Loop thru all Hardware Queues */
9890 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9891 /* Destroy the CQ/WQ corresponding to Hardware Queue */
9892 qp = &phba->sli4_hba.hdwq[qidx];
9893 lpfc_wq_destroy(phba, qp->io_wq);
9894 lpfc_cq_destroy(phba, qp->io_cq);
9896 /* Loop thru all IRQ vectors */
9897 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9898 /* Destroy the EQ corresponding to the IRQ vector */
9899 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
9900 lpfc_eq_destroy(phba, eq);
9904 kfree(phba->sli4_hba.cq_lookup);
9905 phba->sli4_hba.cq_lookup = NULL;
9906 phba->sli4_hba.cq_max = 0;
9910 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
9911 * @phba: pointer to lpfc hba data structure.
9913 * This routine is invoked to allocate and set up a pool of completion queue
9914 * events. The body of the completion queue event is a completion queue entry
9915 * CQE. For now, this pool is used for the interrupt service routine to queue
9916 * the following HBA completion queue events for the worker thread to process:
9917 * - Mailbox asynchronous events
9918 * - Receive queue completion unsolicited events
9919 * Later, this can be used for all the slow-path events.
9923 * -ENOMEM - No available memory
9926 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
9928 struct lpfc_cq_event *cq_event;
9931 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
9932 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
9934 goto out_pool_create_fail;
9935 list_add_tail(&cq_event->list,
9936 &phba->sli4_hba.sp_cqe_event_pool);
9940 out_pool_create_fail:
9941 lpfc_sli4_cq_event_pool_destroy(phba);
9946 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
9947 * @phba: pointer to lpfc hba data structure.
9949 * This routine is invoked to free the pool of completion queue events at
9950 * driver unload time. Note that, it is the responsibility of the driver
9951 * cleanup routine to free all the outstanding completion-queue events
9952 * allocated from this pool back into the pool before invoking this routine
9953 * to destroy the pool.
9956 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
9958 struct lpfc_cq_event *cq_event, *next_cq_event;
9960 list_for_each_entry_safe(cq_event, next_cq_event,
9961 &phba->sli4_hba.sp_cqe_event_pool, list) {
9962 list_del(&cq_event->list);
9968 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9969 * @phba: pointer to lpfc hba data structure.
9971 * This routine is the lock free version of the API invoked to allocate a
9972 * completion-queue event from the free pool.
9974 * Return: Pointer to the newly allocated completion-queue event if successful
9977 struct lpfc_cq_event *
9978 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9980 struct lpfc_cq_event *cq_event = NULL;
9982 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
9983 struct lpfc_cq_event, list);
9988 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9989 * @phba: pointer to lpfc hba data structure.
9991 * This routine is the lock version of the API invoked to allocate a
9992 * completion-queue event from the free pool.
9994 * Return: Pointer to the newly allocated completion-queue event if successful
9997 struct lpfc_cq_event *
9998 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
10000 struct lpfc_cq_event *cq_event;
10001 unsigned long iflags;
10003 spin_lock_irqsave(&phba->hbalock, iflags);
10004 cq_event = __lpfc_sli4_cq_event_alloc(phba);
10005 spin_unlock_irqrestore(&phba->hbalock, iflags);
10010 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
10011 * @phba: pointer to lpfc hba data structure.
10012 * @cq_event: pointer to the completion queue event to be freed.
10014 * This routine is the lock free version of the API invoked to release a
10015 * completion-queue event back into the free pool.
10018 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
10019 struct lpfc_cq_event *cq_event)
10021 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
10025 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
10026 * @phba: pointer to lpfc hba data structure.
10027 * @cq_event: pointer to the completion queue event to be freed.
10029 * This routine is the lock version of the API invoked to release a
10030 * completion-queue event back into the free pool.
10033 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
10034 struct lpfc_cq_event *cq_event)
10036 unsigned long iflags;
10037 spin_lock_irqsave(&phba->hbalock, iflags);
10038 __lpfc_sli4_cq_event_release(phba, cq_event);
10039 spin_unlock_irqrestore(&phba->hbalock, iflags);
10043 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
10044 * @phba: pointer to lpfc hba data structure.
10046 * This routine is to free all the pending completion-queue events to the
10047 * back into the free pool for device reset.
10050 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
10052 LIST_HEAD(cqelist);
10053 struct lpfc_cq_event *cqe;
10054 unsigned long iflags;
10056 /* Retrieve all the pending WCQEs from pending WCQE lists */
10057 spin_lock_irqsave(&phba->hbalock, iflags);
10058 /* Pending FCP XRI abort events */
10059 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
10061 /* Pending ELS XRI abort events */
10062 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
10064 /* Pending asynnc events */
10065 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
10067 spin_unlock_irqrestore(&phba->hbalock, iflags);
10069 while (!list_empty(&cqelist)) {
10070 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
10071 lpfc_sli4_cq_event_release(phba, cqe);
10076 * lpfc_pci_function_reset - Reset pci function.
10077 * @phba: pointer to lpfc hba data structure.
10079 * This routine is invoked to request a PCI function reset. It will destroys
10080 * all resources assigned to the PCI function which originates this request.
10084 * -ENOMEM - No available memory
10085 * -EIO - The mailbox failed to complete successfully.
10088 lpfc_pci_function_reset(struct lpfc_hba *phba)
10090 LPFC_MBOXQ_t *mboxq;
10091 uint32_t rc = 0, if_type;
10092 uint32_t shdr_status, shdr_add_status;
10094 uint32_t port_reset = 0;
10095 union lpfc_sli4_cfg_shdr *shdr;
10096 struct lpfc_register reg_data;
10099 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10101 case LPFC_SLI_INTF_IF_TYPE_0:
10102 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
10105 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10106 "0494 Unable to allocate memory for "
10107 "issuing SLI_FUNCTION_RESET mailbox "
10112 /* Setup PCI function reset mailbox-ioctl command */
10113 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10114 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
10115 LPFC_SLI4_MBX_EMBED);
10116 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10117 shdr = (union lpfc_sli4_cfg_shdr *)
10118 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
10119 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10120 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
10122 if (rc != MBX_TIMEOUT)
10123 mempool_free(mboxq, phba->mbox_mem_pool);
10124 if (shdr_status || shdr_add_status || rc) {
10125 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10126 "0495 SLI_FUNCTION_RESET mailbox "
10127 "failed with status x%x add_status x%x,"
10128 " mbx status x%x\n",
10129 shdr_status, shdr_add_status, rc);
10133 case LPFC_SLI_INTF_IF_TYPE_2:
10134 case LPFC_SLI_INTF_IF_TYPE_6:
10137 * Poll the Port Status Register and wait for RDY for
10138 * up to 30 seconds. If the port doesn't respond, treat
10141 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
10142 if (lpfc_readl(phba->sli4_hba.u.if_type2.
10143 STATUSregaddr, ®_data.word0)) {
10147 if (bf_get(lpfc_sliport_status_rdy, ®_data))
10152 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) {
10153 phba->work_status[0] = readl(
10154 phba->sli4_hba.u.if_type2.ERR1regaddr);
10155 phba->work_status[1] = readl(
10156 phba->sli4_hba.u.if_type2.ERR2regaddr);
10157 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10158 "2890 Port not ready, port status reg "
10159 "0x%x error 1=0x%x, error 2=0x%x\n",
10161 phba->work_status[0],
10162 phba->work_status[1]);
10169 * Reset the port now
10171 reg_data.word0 = 0;
10172 bf_set(lpfc_sliport_ctrl_end, ®_data,
10173 LPFC_SLIPORT_LITTLE_ENDIAN);
10174 bf_set(lpfc_sliport_ctrl_ip, ®_data,
10175 LPFC_SLIPORT_INIT_PORT);
10176 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
10179 pci_read_config_word(phba->pcidev,
10180 PCI_DEVICE_ID, &devid);
10185 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) {
10191 case LPFC_SLI_INTF_IF_TYPE_1:
10197 /* Catch the not-ready port failure after a port reset. */
10199 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10200 "3317 HBA not functional: IP Reset Failed "
10201 "try: echo fw_reset > board_mode\n");
10209 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
10210 * @phba: pointer to lpfc hba data structure.
10212 * This routine is invoked to set up the PCI device memory space for device
10213 * with SLI-4 interface spec.
10217 * other values - error
10220 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
10222 struct pci_dev *pdev = phba->pcidev;
10223 unsigned long bar0map_len, bar1map_len, bar2map_len;
10230 /* Set the device DMA mask size */
10231 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
10233 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
10238 * The BARs and register set definitions and offset locations are
10239 * dependent on the if_type.
10241 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
10242 &phba->sli4_hba.sli_intf.word0)) {
10246 /* There is no SLI3 failback for SLI4 devices. */
10247 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
10248 LPFC_SLI_INTF_VALID) {
10249 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10250 "2894 SLI_INTF reg contents invalid "
10251 "sli_intf reg 0x%x\n",
10252 phba->sli4_hba.sli_intf.word0);
10256 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10258 * Get the bus address of SLI4 device Bar regions and the
10259 * number of bytes required by each mapping. The mapping of the
10260 * particular PCI BARs regions is dependent on the type of
10263 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
10264 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
10265 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
10268 * Map SLI4 PCI Config Space Register base to a kernel virtual
10271 phba->sli4_hba.conf_regs_memmap_p =
10272 ioremap(phba->pci_bar0_map, bar0map_len);
10273 if (!phba->sli4_hba.conf_regs_memmap_p) {
10274 dev_printk(KERN_ERR, &pdev->dev,
10275 "ioremap failed for SLI4 PCI config "
10279 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
10280 /* Set up BAR0 PCI config space register memory map */
10281 lpfc_sli4_bar0_register_memmap(phba, if_type);
10283 phba->pci_bar0_map = pci_resource_start(pdev, 1);
10284 bar0map_len = pci_resource_len(pdev, 1);
10285 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
10286 dev_printk(KERN_ERR, &pdev->dev,
10287 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
10290 phba->sli4_hba.conf_regs_memmap_p =
10291 ioremap(phba->pci_bar0_map, bar0map_len);
10292 if (!phba->sli4_hba.conf_regs_memmap_p) {
10293 dev_printk(KERN_ERR, &pdev->dev,
10294 "ioremap failed for SLI4 PCI config "
10298 lpfc_sli4_bar0_register_memmap(phba, if_type);
10301 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10302 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
10304 * Map SLI4 if type 0 HBA Control Register base to a
10305 * kernel virtual address and setup the registers.
10307 phba->pci_bar1_map = pci_resource_start(pdev,
10309 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10310 phba->sli4_hba.ctrl_regs_memmap_p =
10311 ioremap(phba->pci_bar1_map,
10313 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
10314 dev_err(&pdev->dev,
10315 "ioremap failed for SLI4 HBA "
10316 "control registers.\n");
10318 goto out_iounmap_conf;
10320 phba->pci_bar2_memmap_p =
10321 phba->sli4_hba.ctrl_regs_memmap_p;
10322 lpfc_sli4_bar1_register_memmap(phba, if_type);
10325 goto out_iounmap_conf;
10329 if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
10330 (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
10332 * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
10333 * virtual address and setup the registers.
10335 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
10336 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10337 phba->sli4_hba.drbl_regs_memmap_p =
10338 ioremap(phba->pci_bar1_map, bar1map_len);
10339 if (!phba->sli4_hba.drbl_regs_memmap_p) {
10340 dev_err(&pdev->dev,
10341 "ioremap failed for SLI4 HBA doorbell registers.\n");
10343 goto out_iounmap_conf;
10345 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
10346 lpfc_sli4_bar1_register_memmap(phba, if_type);
10349 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10350 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10352 * Map SLI4 if type 0 HBA Doorbell Register base to
10353 * a kernel virtual address and setup the registers.
10355 phba->pci_bar2_map = pci_resource_start(pdev,
10357 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10358 phba->sli4_hba.drbl_regs_memmap_p =
10359 ioremap(phba->pci_bar2_map,
10361 if (!phba->sli4_hba.drbl_regs_memmap_p) {
10362 dev_err(&pdev->dev,
10363 "ioremap failed for SLI4 HBA"
10364 " doorbell registers.\n");
10366 goto out_iounmap_ctrl;
10368 phba->pci_bar4_memmap_p =
10369 phba->sli4_hba.drbl_regs_memmap_p;
10370 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
10372 goto out_iounmap_all;
10375 goto out_iounmap_all;
10379 if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
10380 pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10382 * Map SLI4 if type 6 HBA DPP Register base to a kernel
10383 * virtual address and setup the registers.
10385 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
10386 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10387 phba->sli4_hba.dpp_regs_memmap_p =
10388 ioremap(phba->pci_bar2_map, bar2map_len);
10389 if (!phba->sli4_hba.dpp_regs_memmap_p) {
10390 dev_err(&pdev->dev,
10391 "ioremap failed for SLI4 HBA dpp registers.\n");
10393 goto out_iounmap_ctrl;
10395 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
10398 /* Set up the EQ/CQ register handeling functions now */
10400 case LPFC_SLI_INTF_IF_TYPE_0:
10401 case LPFC_SLI_INTF_IF_TYPE_2:
10402 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
10403 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
10404 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
10406 case LPFC_SLI_INTF_IF_TYPE_6:
10407 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
10408 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
10409 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
10418 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10420 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10422 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10428 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
10429 * @phba: pointer to lpfc hba data structure.
10431 * This routine is invoked to unset the PCI device memory space for device
10432 * with SLI-4 interface spec.
10435 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
10438 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10441 case LPFC_SLI_INTF_IF_TYPE_0:
10442 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10443 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10444 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10446 case LPFC_SLI_INTF_IF_TYPE_2:
10447 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10449 case LPFC_SLI_INTF_IF_TYPE_6:
10450 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10451 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10453 case LPFC_SLI_INTF_IF_TYPE_1:
10455 dev_printk(KERN_ERR, &phba->pcidev->dev,
10456 "FATAL - unsupported SLI4 interface type - %d\n",
10463 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
10464 * @phba: pointer to lpfc hba data structure.
10466 * This routine is invoked to enable the MSI-X interrupt vectors to device
10467 * with SLI-3 interface specs.
10471 * other values - error
10474 lpfc_sli_enable_msix(struct lpfc_hba *phba)
10479 /* Set up MSI-X multi-message vectors */
10480 rc = pci_alloc_irq_vectors(phba->pcidev,
10481 LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
10483 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10484 "0420 PCI enable MSI-X failed (%d)\n", rc);
10489 * Assign MSI-X vectors to interrupt handlers
10492 /* vector-0 is associated to slow-path handler */
10493 rc = request_irq(pci_irq_vector(phba->pcidev, 0),
10494 &lpfc_sli_sp_intr_handler, 0,
10495 LPFC_SP_DRIVER_HANDLER_NAME, phba);
10497 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10498 "0421 MSI-X slow-path request_irq failed "
10503 /* vector-1 is associated to fast-path handler */
10504 rc = request_irq(pci_irq_vector(phba->pcidev, 1),
10505 &lpfc_sli_fp_intr_handler, 0,
10506 LPFC_FP_DRIVER_HANDLER_NAME, phba);
10509 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10510 "0429 MSI-X fast-path request_irq failed "
10516 * Configure HBA MSI-X attention conditions to messages
10518 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10522 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10523 "0474 Unable to allocate memory for issuing "
10524 "MBOX_CONFIG_MSI command\n");
10527 rc = lpfc_config_msi(phba, pmb);
10530 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
10531 if (rc != MBX_SUCCESS) {
10532 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
10533 "0351 Config MSI mailbox command failed, "
10534 "mbxCmd x%x, mbxStatus x%x\n",
10535 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
10539 /* Free memory allocated for mailbox command */
10540 mempool_free(pmb, phba->mbox_mem_pool);
10544 /* Free memory allocated for mailbox command */
10545 mempool_free(pmb, phba->mbox_mem_pool);
10548 /* free the irq already requested */
10549 free_irq(pci_irq_vector(phba->pcidev, 1), phba);
10552 /* free the irq already requested */
10553 free_irq(pci_irq_vector(phba->pcidev, 0), phba);
10556 /* Unconfigure MSI-X capability structure */
10557 pci_free_irq_vectors(phba->pcidev);
10564 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
10565 * @phba: pointer to lpfc hba data structure.
10567 * This routine is invoked to enable the MSI interrupt mode to device with
10568 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
10569 * enable the MSI vector. The device driver is responsible for calling the
10570 * request_irq() to register MSI vector with a interrupt the handler, which
10571 * is done in this function.
10575 * other values - error
10578 lpfc_sli_enable_msi(struct lpfc_hba *phba)
10582 rc = pci_enable_msi(phba->pcidev);
10584 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10585 "0462 PCI enable MSI mode success.\n");
10587 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10588 "0471 PCI enable MSI mode failed (%d)\n", rc);
10592 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10593 0, LPFC_DRIVER_NAME, phba);
10595 pci_disable_msi(phba->pcidev);
10596 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10597 "0478 MSI request_irq failed (%d)\n", rc);
10603 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
10604 * @phba: pointer to lpfc hba data structure.
10606 * This routine is invoked to enable device interrupt and associate driver's
10607 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
10608 * spec. Depends on the interrupt mode configured to the driver, the driver
10609 * will try to fallback from the configured interrupt mode to an interrupt
10610 * mode which is supported by the platform, kernel, and device in the order
10612 * MSI-X -> MSI -> IRQ.
10616 * other values - error
10619 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10621 uint32_t intr_mode = LPFC_INTR_ERROR;
10624 if (cfg_mode == 2) {
10625 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
10626 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
10628 /* Now, try to enable MSI-X interrupt mode */
10629 retval = lpfc_sli_enable_msix(phba);
10631 /* Indicate initialization to MSI-X mode */
10632 phba->intr_type = MSIX;
10638 /* Fallback to MSI if MSI-X initialization failed */
10639 if (cfg_mode >= 1 && phba->intr_type == NONE) {
10640 retval = lpfc_sli_enable_msi(phba);
10642 /* Indicate initialization to MSI mode */
10643 phba->intr_type = MSI;
10648 /* Fallback to INTx if both MSI-X/MSI initalization failed */
10649 if (phba->intr_type == NONE) {
10650 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10651 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10653 /* Indicate initialization to INTx mode */
10654 phba->intr_type = INTx;
10662 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
10663 * @phba: pointer to lpfc hba data structure.
10665 * This routine is invoked to disable device interrupt and disassociate the
10666 * driver's interrupt handler(s) from interrupt vector(s) to device with
10667 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
10668 * release the interrupt vector(s) for the message signaled interrupt.
10671 lpfc_sli_disable_intr(struct lpfc_hba *phba)
10675 if (phba->intr_type == MSIX)
10676 nr_irqs = LPFC_MSIX_VECTORS;
10680 for (i = 0; i < nr_irqs; i++)
10681 free_irq(pci_irq_vector(phba->pcidev, i), phba);
10682 pci_free_irq_vectors(phba->pcidev);
10684 /* Reset interrupt management states */
10685 phba->intr_type = NONE;
10686 phba->sli.slistat.sli_intr = 0;
10690 * lpfc_find_cpu_handle - Find the CPU that corresponds to the specified Queue
10691 * @phba: pointer to lpfc hba data structure.
10692 * @id: EQ vector index or Hardware Queue index
10693 * @match: LPFC_FIND_BY_EQ = match by EQ
10694 * LPFC_FIND_BY_HDWQ = match by Hardware Queue
10695 * Return the CPU that matches the selection criteria
10698 lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
10700 struct lpfc_vector_map_info *cpup;
10703 /* Loop through all CPUs */
10704 for_each_present_cpu(cpu) {
10705 cpup = &phba->sli4_hba.cpu_map[cpu];
10707 /* If we are matching by EQ, there may be multiple CPUs using
10708 * using the same vector, so select the one with
10709 * LPFC_CPU_FIRST_IRQ set.
10711 if ((match == LPFC_FIND_BY_EQ) &&
10712 (cpup->flag & LPFC_CPU_FIRST_IRQ) &&
10716 /* If matching by HDWQ, select the first CPU that matches */
10717 if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
10725 * lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
10726 * @phba: pointer to lpfc hba data structure.
10727 * @cpu: CPU map index
10728 * @phys_id: CPU package physical id
10729 * @core_id: CPU core id
10732 lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
10733 uint16_t phys_id, uint16_t core_id)
10735 struct lpfc_vector_map_info *cpup;
10738 for_each_present_cpu(idx) {
10739 cpup = &phba->sli4_hba.cpu_map[idx];
10740 /* Does the cpup match the one we are looking for */
10741 if ((cpup->phys_id == phys_id) &&
10742 (cpup->core_id == core_id) &&
10751 * lpfc_assign_eq_map_info - Assigns eq for vector_map structure
10752 * @phba: pointer to lpfc hba data structure.
10753 * @eqidx: index for eq and irq vector
10754 * @flag: flags to set for vector_map structure
10755 * @cpu: cpu used to index vector_map structure
10757 * The routine assigns eq info into vector_map structure
10760 lpfc_assign_eq_map_info(struct lpfc_hba *phba, uint16_t eqidx, uint16_t flag,
10763 struct lpfc_vector_map_info *cpup = &phba->sli4_hba.cpu_map[cpu];
10764 struct lpfc_hba_eq_hdl *eqhdl = lpfc_get_eq_hdl(eqidx);
10767 cpup->flag |= flag;
10769 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10770 "3336 Set Affinity: CPU %d irq %d eq %d flag x%x\n",
10771 cpu, eqhdl->irq, cpup->eq, cpup->flag);
10775 * lpfc_cpu_map_array_init - Initialize cpu_map structure
10776 * @phba: pointer to lpfc hba data structure.
10778 * The routine initializes the cpu_map array structure
10781 lpfc_cpu_map_array_init(struct lpfc_hba *phba)
10783 struct lpfc_vector_map_info *cpup;
10784 struct lpfc_eq_intr_info *eqi;
10787 for_each_possible_cpu(cpu) {
10788 cpup = &phba->sli4_hba.cpu_map[cpu];
10789 cpup->phys_id = LPFC_VECTOR_MAP_EMPTY;
10790 cpup->core_id = LPFC_VECTOR_MAP_EMPTY;
10791 cpup->hdwq = LPFC_VECTOR_MAP_EMPTY;
10792 cpup->eq = LPFC_VECTOR_MAP_EMPTY;
10794 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, cpu);
10795 INIT_LIST_HEAD(&eqi->list);
10801 * lpfc_hba_eq_hdl_array_init - Initialize hba_eq_hdl structure
10802 * @phba: pointer to lpfc hba data structure.
10804 * The routine initializes the hba_eq_hdl array structure
10807 lpfc_hba_eq_hdl_array_init(struct lpfc_hba *phba)
10809 struct lpfc_hba_eq_hdl *eqhdl;
10812 for (i = 0; i < phba->cfg_irq_chann; i++) {
10813 eqhdl = lpfc_get_eq_hdl(i);
10814 eqhdl->irq = LPFC_VECTOR_MAP_EMPTY;
10815 eqhdl->phba = phba;
10820 * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
10821 * @phba: pointer to lpfc hba data structure.
10822 * @vectors: number of msix vectors allocated.
10824 * The routine will figure out the CPU affinity assignment for every
10825 * MSI-X vector allocated for the HBA.
10826 * In addition, the CPU to IO channel mapping will be calculated
10827 * and the phba->sli4_hba.cpu_map array will reflect this.
10830 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
10832 int i, cpu, idx, next_idx, new_cpu, start_cpu, first_cpu;
10833 int max_phys_id, min_phys_id;
10834 int max_core_id, min_core_id;
10835 struct lpfc_vector_map_info *cpup;
10836 struct lpfc_vector_map_info *new_cpup;
10838 struct cpuinfo_x86 *cpuinfo;
10842 min_phys_id = LPFC_VECTOR_MAP_EMPTY;
10844 min_core_id = LPFC_VECTOR_MAP_EMPTY;
10846 /* Update CPU map with physical id and core id of each CPU */
10847 for_each_present_cpu(cpu) {
10848 cpup = &phba->sli4_hba.cpu_map[cpu];
10850 cpuinfo = &cpu_data(cpu);
10851 cpup->phys_id = cpuinfo->phys_proc_id;
10852 cpup->core_id = cpuinfo->cpu_core_id;
10853 if (lpfc_find_hyper(phba, cpu, cpup->phys_id, cpup->core_id))
10854 cpup->flag |= LPFC_CPU_MAP_HYPER;
10856 /* No distinction between CPUs for other platforms */
10858 cpup->core_id = cpu;
10861 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10862 "3328 CPU %d physid %d coreid %d flag x%x\n",
10863 cpu, cpup->phys_id, cpup->core_id, cpup->flag);
10865 if (cpup->phys_id > max_phys_id)
10866 max_phys_id = cpup->phys_id;
10867 if (cpup->phys_id < min_phys_id)
10868 min_phys_id = cpup->phys_id;
10870 if (cpup->core_id > max_core_id)
10871 max_core_id = cpup->core_id;
10872 if (cpup->core_id < min_core_id)
10873 min_core_id = cpup->core_id;
10876 /* After looking at each irq vector assigned to this pcidev, its
10877 * possible to see that not ALL CPUs have been accounted for.
10878 * Next we will set any unassigned (unaffinitized) cpu map
10879 * entries to a IRQ on the same phys_id.
10881 first_cpu = cpumask_first(cpu_present_mask);
10882 start_cpu = first_cpu;
10884 for_each_present_cpu(cpu) {
10885 cpup = &phba->sli4_hba.cpu_map[cpu];
10887 /* Is this CPU entry unassigned */
10888 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
10889 /* Mark CPU as IRQ not assigned by the kernel */
10890 cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
10892 /* If so, find a new_cpup thats on the the SAME
10893 * phys_id as cpup. start_cpu will start where we
10894 * left off so all unassigned entries don't get assgined
10895 * the IRQ of the first entry.
10897 new_cpu = start_cpu;
10898 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
10899 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
10900 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
10901 (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY) &&
10902 (new_cpup->phys_id == cpup->phys_id))
10904 new_cpu = cpumask_next(
10905 new_cpu, cpu_present_mask);
10906 if (new_cpu == nr_cpumask_bits)
10907 new_cpu = first_cpu;
10909 /* At this point, we leave the CPU as unassigned */
10912 /* We found a matching phys_id, so copy the IRQ info */
10913 cpup->eq = new_cpup->eq;
10915 /* Bump start_cpu to the next slot to minmize the
10916 * chance of having multiple unassigned CPU entries
10917 * selecting the same IRQ.
10919 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
10920 if (start_cpu == nr_cpumask_bits)
10921 start_cpu = first_cpu;
10923 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10924 "3337 Set Affinity: CPU %d "
10925 "eq %d from peer cpu %d same "
10927 cpu, cpup->eq, new_cpu,
10932 /* Set any unassigned cpu map entries to a IRQ on any phys_id */
10933 start_cpu = first_cpu;
10935 for_each_present_cpu(cpu) {
10936 cpup = &phba->sli4_hba.cpu_map[cpu];
10938 /* Is this entry unassigned */
10939 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
10940 /* Mark it as IRQ not assigned by the kernel */
10941 cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
10943 /* If so, find a new_cpup thats on ANY phys_id
10944 * as the cpup. start_cpu will start where we
10945 * left off so all unassigned entries don't get
10946 * assigned the IRQ of the first entry.
10948 new_cpu = start_cpu;
10949 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
10950 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
10951 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
10952 (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY))
10954 new_cpu = cpumask_next(
10955 new_cpu, cpu_present_mask);
10956 if (new_cpu == nr_cpumask_bits)
10957 new_cpu = first_cpu;
10959 /* We should never leave an entry unassigned */
10960 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10961 "3339 Set Affinity: CPU %d "
10962 "eq %d UNASSIGNED\n",
10963 cpup->hdwq, cpup->eq);
10966 /* We found an available entry, copy the IRQ info */
10967 cpup->eq = new_cpup->eq;
10969 /* Bump start_cpu to the next slot to minmize the
10970 * chance of having multiple unassigned CPU entries
10971 * selecting the same IRQ.
10973 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
10974 if (start_cpu == nr_cpumask_bits)
10975 start_cpu = first_cpu;
10977 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10978 "3338 Set Affinity: CPU %d "
10979 "eq %d from peer cpu %d (%d/%d)\n",
10980 cpu, cpup->eq, new_cpu,
10981 new_cpup->phys_id, new_cpup->core_id);
10985 /* Assign hdwq indices that are unique across all cpus in the map
10986 * that are also FIRST_CPUs.
10989 for_each_present_cpu(cpu) {
10990 cpup = &phba->sli4_hba.cpu_map[cpu];
10992 /* Only FIRST IRQs get a hdwq index assignment. */
10993 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
10996 /* 1 to 1, the first LPFC_CPU_FIRST_IRQ cpus to a unique hdwq */
10999 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11000 "3333 Set Affinity: CPU %d (phys %d core %d): "
11001 "hdwq %d eq %d flg x%x\n",
11002 cpu, cpup->phys_id, cpup->core_id,
11003 cpup->hdwq, cpup->eq, cpup->flag);
11005 /* Associate a hdwq with each cpu_map entry
11006 * This will be 1 to 1 - hdwq to cpu, unless there are less
11007 * hardware queues then CPUs. For that case we will just round-robin
11008 * the available hardware queues as they get assigned to CPUs.
11009 * The next_idx is the idx from the FIRST_CPU loop above to account
11010 * for irq_chann < hdwq. The idx is used for round-robin assignments
11011 * and needs to start at 0.
11016 for_each_present_cpu(cpu) {
11017 cpup = &phba->sli4_hba.cpu_map[cpu];
11019 /* FIRST cpus are already mapped. */
11020 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
11023 /* If the cfg_irq_chann < cfg_hdw_queue, set the hdwq
11024 * of the unassigned cpus to the next idx so that all
11025 * hdw queues are fully utilized.
11027 if (next_idx < phba->cfg_hdw_queue) {
11028 cpup->hdwq = next_idx;
11033 /* Not a First CPU and all hdw_queues are used. Reuse a
11034 * Hardware Queue for another CPU, so be smart about it
11035 * and pick one that has its IRQ/EQ mapped to the same phys_id
11036 * (CPU package) and core_id.
11038 new_cpu = start_cpu;
11039 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11040 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11041 if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
11042 new_cpup->phys_id == cpup->phys_id &&
11043 new_cpup->core_id == cpup->core_id) {
11046 new_cpu = cpumask_next(new_cpu, cpu_present_mask);
11047 if (new_cpu == nr_cpumask_bits)
11048 new_cpu = first_cpu;
11051 /* If we can't match both phys_id and core_id,
11052 * settle for just a phys_id match.
11054 new_cpu = start_cpu;
11055 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11056 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11057 if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
11058 new_cpup->phys_id == cpup->phys_id)
11061 new_cpu = cpumask_next(new_cpu, cpu_present_mask);
11062 if (new_cpu == nr_cpumask_bits)
11063 new_cpu = first_cpu;
11066 /* Otherwise just round robin on cfg_hdw_queue */
11067 cpup->hdwq = idx % phba->cfg_hdw_queue;
11071 /* We found an available entry, copy the IRQ info */
11072 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
11073 if (start_cpu == nr_cpumask_bits)
11074 start_cpu = first_cpu;
11075 cpup->hdwq = new_cpup->hdwq;
11077 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11078 "3335 Set Affinity: CPU %d (phys %d core %d): "
11079 "hdwq %d eq %d flg x%x\n",
11080 cpu, cpup->phys_id, cpup->core_id,
11081 cpup->hdwq, cpup->eq, cpup->flag);
11085 * Initialize the cpu_map slots for not-present cpus in case
11086 * a cpu is hot-added. Perform a simple hdwq round robin assignment.
11089 for_each_possible_cpu(cpu) {
11090 cpup = &phba->sli4_hba.cpu_map[cpu];
11091 if (cpup->hdwq != LPFC_VECTOR_MAP_EMPTY)
11094 cpup->hdwq = idx++ % phba->cfg_hdw_queue;
11095 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11096 "3340 Set Affinity: not present "
11097 "CPU %d hdwq %d\n",
11101 /* The cpu_map array will be used later during initialization
11102 * when EQ / CQ / WQs are allocated and configured.
11108 * lpfc_cpuhp_get_eq
11110 * @phba: pointer to lpfc hba data structure.
11111 * @cpu: cpu going offline
11115 lpfc_cpuhp_get_eq(struct lpfc_hba *phba, unsigned int cpu,
11116 struct list_head *eqlist)
11118 const struct cpumask *maskp;
11119 struct lpfc_queue *eq;
11123 for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11124 maskp = pci_irq_get_affinity(phba->pcidev, idx);
11128 * if irq is not affinitized to the cpu going
11129 * then we don't need to poll the eq attached
11132 if (!cpumask_and(&tmp, maskp, cpumask_of(cpu)))
11134 /* get the cpus that are online and are affini-
11135 * tized to this irq vector. If the count is
11136 * more than 1 then cpuhp is not going to shut-
11137 * down this vector. Since this cpu has not
11138 * gone offline yet, we need >1.
11140 cpumask_and(&tmp, maskp, cpu_online_mask);
11141 if (cpumask_weight(&tmp) > 1)
11144 /* Now that we have an irq to shutdown, get the eq
11145 * mapped to this irq. Note: multiple hdwq's in
11146 * the software can share an eq, but eventually
11147 * only eq will be mapped to this vector
11149 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
11150 list_add(&eq->_poll_list, eqlist);
11154 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba)
11156 if (phba->sli_rev != LPFC_SLI_REV4)
11159 cpuhp_state_remove_instance_nocalls(lpfc_cpuhp_state,
11162 * unregistering the instance doesn't stop the polling
11163 * timer. Wait for the poll timer to retire.
11166 del_timer_sync(&phba->cpuhp_poll_timer);
11169 static void lpfc_cpuhp_remove(struct lpfc_hba *phba)
11171 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
11174 __lpfc_cpuhp_remove(phba);
11177 static void lpfc_cpuhp_add(struct lpfc_hba *phba)
11179 if (phba->sli_rev != LPFC_SLI_REV4)
11184 if (!list_empty(&phba->poll_list)) {
11185 timer_setup(&phba->cpuhp_poll_timer, lpfc_sli4_poll_hbtimer, 0);
11186 mod_timer(&phba->cpuhp_poll_timer,
11187 jiffies + msecs_to_jiffies(LPFC_POLL_HB));
11192 cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state,
11196 static int __lpfc_cpuhp_checks(struct lpfc_hba *phba, int *retval)
11198 if (phba->pport->load_flag & FC_UNLOADING) {
11203 if (phba->sli_rev != LPFC_SLI_REV4) {
11208 /* proceed with the hotplug */
11213 * lpfc_irq_set_aff - set IRQ affinity
11214 * @eqhdl: EQ handle
11215 * @cpu: cpu to set affinity
11219 lpfc_irq_set_aff(struct lpfc_hba_eq_hdl *eqhdl, unsigned int cpu)
11221 cpumask_clear(&eqhdl->aff_mask);
11222 cpumask_set_cpu(cpu, &eqhdl->aff_mask);
11223 irq_set_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
11224 irq_set_affinity_hint(eqhdl->irq, &eqhdl->aff_mask);
11228 * lpfc_irq_clear_aff - clear IRQ affinity
11229 * @eqhdl: EQ handle
11233 lpfc_irq_clear_aff(struct lpfc_hba_eq_hdl *eqhdl)
11235 cpumask_clear(&eqhdl->aff_mask);
11236 irq_clear_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
11237 irq_set_affinity_hint(eqhdl->irq, &eqhdl->aff_mask);
11241 * lpfc_irq_rebalance - rebalances IRQ affinity according to cpuhp event
11242 * @phba: pointer to HBA context object.
11243 * @cpu: cpu going offline/online
11244 * @offline: true, cpu is going offline. false, cpu is coming online.
11246 * If cpu is going offline, we'll try our best effort to find the next
11247 * online cpu on the phba's NUMA node and migrate all offlining IRQ affinities.
11249 * If cpu is coming online, reaffinitize the IRQ back to the onlineng cpu.
11251 * Note: Call only if cfg_irq_numa is enabled, otherwise rely on
11252 * PCI_IRQ_AFFINITY to auto-manage IRQ affinity.
11256 lpfc_irq_rebalance(struct lpfc_hba *phba, unsigned int cpu, bool offline)
11258 struct lpfc_vector_map_info *cpup;
11259 struct cpumask *aff_mask;
11260 unsigned int cpu_select, cpu_next, idx;
11261 const struct cpumask *numa_mask;
11263 if (!phba->cfg_irq_numa)
11266 numa_mask = &phba->sli4_hba.numa_mask;
11268 if (!cpumask_test_cpu(cpu, numa_mask))
11271 cpup = &phba->sli4_hba.cpu_map[cpu];
11273 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
11277 /* Find next online CPU on NUMA node */
11278 cpu_next = cpumask_next_wrap(cpu, numa_mask, cpu, true);
11279 cpu_select = lpfc_next_online_numa_cpu(numa_mask, cpu_next);
11281 /* Found a valid CPU */
11282 if ((cpu_select < nr_cpu_ids) && (cpu_select != cpu)) {
11283 /* Go through each eqhdl and ensure offlining
11284 * cpu aff_mask is migrated
11286 for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11287 aff_mask = lpfc_get_aff_mask(idx);
11289 /* Migrate affinity */
11290 if (cpumask_test_cpu(cpu, aff_mask))
11291 lpfc_irq_set_aff(lpfc_get_eq_hdl(idx),
11295 /* Rely on irqbalance if no online CPUs left on NUMA */
11296 for (idx = 0; idx < phba->cfg_irq_chann; idx++)
11297 lpfc_irq_clear_aff(lpfc_get_eq_hdl(idx));
11300 /* Migrate affinity back to this CPU */
11301 lpfc_irq_set_aff(lpfc_get_eq_hdl(cpup->eq), cpu);
11305 static int lpfc_cpu_offline(unsigned int cpu, struct hlist_node *node)
11307 struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
11308 struct lpfc_queue *eq, *next;
11313 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
11317 if (__lpfc_cpuhp_checks(phba, &retval))
11320 lpfc_irq_rebalance(phba, cpu, true);
11322 lpfc_cpuhp_get_eq(phba, cpu, &eqlist);
11324 /* start polling on these eq's */
11325 list_for_each_entry_safe(eq, next, &eqlist, _poll_list) {
11326 list_del_init(&eq->_poll_list);
11327 lpfc_sli4_start_polling(eq);
11333 static int lpfc_cpu_online(unsigned int cpu, struct hlist_node *node)
11335 struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
11336 struct lpfc_queue *eq, *next;
11341 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
11345 if (__lpfc_cpuhp_checks(phba, &retval))
11348 lpfc_irq_rebalance(phba, cpu, false);
11350 list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list) {
11351 n = lpfc_find_cpu_handle(phba, eq->hdwq, LPFC_FIND_BY_HDWQ);
11353 lpfc_sli4_stop_polling(eq);
11360 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
11361 * @phba: pointer to lpfc hba data structure.
11363 * This routine is invoked to enable the MSI-X interrupt vectors to device
11364 * with SLI-4 interface spec. It also allocates MSI-X vectors and maps them
11365 * to cpus on the system.
11367 * When cfg_irq_numa is enabled, the adapter will only allocate vectors for
11368 * the number of cpus on the same numa node as this adapter. The vectors are
11369 * allocated without requesting OS affinity mapping. A vector will be
11370 * allocated and assigned to each online and offline cpu. If the cpu is
11371 * online, then affinity will be set to that cpu. If the cpu is offline, then
11372 * affinity will be set to the nearest peer cpu within the numa node that is
11373 * online. If there are no online cpus within the numa node, affinity is not
11374 * assigned and the OS may do as it pleases. Note: cpu vector affinity mapping
11375 * is consistent with the way cpu online/offline is handled when cfg_irq_numa is
11378 * If numa mode is not enabled and there is more than 1 vector allocated, then
11379 * the driver relies on the managed irq interface where the OS assigns vector to
11380 * cpu affinity. The driver will then use that affinity mapping to setup its
11381 * cpu mapping table.
11385 * other values - error
11388 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
11390 int vectors, rc, index;
11392 const struct cpumask *numa_mask = NULL;
11393 unsigned int cpu = 0, cpu_cnt = 0, cpu_select = nr_cpu_ids;
11394 struct lpfc_hba_eq_hdl *eqhdl;
11395 const struct cpumask *maskp;
11397 unsigned int flags = PCI_IRQ_MSIX;
11399 /* Set up MSI-X multi-message vectors */
11400 vectors = phba->cfg_irq_chann;
11402 if (phba->cfg_irq_numa) {
11403 numa_mask = &phba->sli4_hba.numa_mask;
11404 cpu_cnt = cpumask_weight(numa_mask);
11405 vectors = min(phba->cfg_irq_chann, cpu_cnt);
11407 /* cpu: iterates over numa_mask including offline or online
11408 * cpu_select: iterates over online numa_mask to set affinity
11410 cpu = cpumask_first(numa_mask);
11411 cpu_select = lpfc_next_online_numa_cpu(numa_mask, cpu);
11413 flags |= PCI_IRQ_AFFINITY;
11416 rc = pci_alloc_irq_vectors(phba->pcidev, 1, vectors, flags);
11418 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11419 "0484 PCI enable MSI-X failed (%d)\n", rc);
11424 /* Assign MSI-X vectors to interrupt handlers */
11425 for (index = 0; index < vectors; index++) {
11426 eqhdl = lpfc_get_eq_hdl(index);
11427 name = eqhdl->handler_name;
11428 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
11429 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
11430 LPFC_DRIVER_HANDLER_NAME"%d", index);
11432 eqhdl->idx = index;
11433 rc = request_irq(pci_irq_vector(phba->pcidev, index),
11434 &lpfc_sli4_hba_intr_handler, 0,
11437 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11438 "0486 MSI-X fast-path (%d) "
11439 "request_irq failed (%d)\n", index, rc);
11443 eqhdl->irq = pci_irq_vector(phba->pcidev, index);
11445 if (phba->cfg_irq_numa) {
11446 /* If found a neighboring online cpu, set affinity */
11447 if (cpu_select < nr_cpu_ids)
11448 lpfc_irq_set_aff(eqhdl, cpu_select);
11450 /* Assign EQ to cpu_map */
11451 lpfc_assign_eq_map_info(phba, index,
11452 LPFC_CPU_FIRST_IRQ,
11455 /* Iterate to next offline or online cpu in numa_mask */
11456 cpu = cpumask_next(cpu, numa_mask);
11458 /* Find next online cpu in numa_mask to set affinity */
11459 cpu_select = lpfc_next_online_numa_cpu(numa_mask, cpu);
11460 } else if (vectors == 1) {
11461 cpu = cpumask_first(cpu_present_mask);
11462 lpfc_assign_eq_map_info(phba, index, LPFC_CPU_FIRST_IRQ,
11465 maskp = pci_irq_get_affinity(phba->pcidev, index);
11468 /* Loop through all CPUs associated with vector index */
11469 for_each_cpu_and(cpu, maskp, cpu_present_mask) {
11470 /* If this is the first CPU thats assigned to
11471 * this vector, set LPFC_CPU_FIRST_IRQ.
11473 lpfc_assign_eq_map_info(phba, index,
11475 LPFC_CPU_FIRST_IRQ : 0,
11483 if (vectors != phba->cfg_irq_chann) {
11484 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11485 "3238 Reducing IO channels to match number of "
11486 "MSI-X vectors, requested %d got %d\n",
11487 phba->cfg_irq_chann, vectors);
11488 if (phba->cfg_irq_chann > vectors)
11489 phba->cfg_irq_chann = vectors;
11495 /* free the irq already requested */
11496 for (--index; index >= 0; index--) {
11497 eqhdl = lpfc_get_eq_hdl(index);
11498 lpfc_irq_clear_aff(eqhdl);
11499 irq_set_affinity_hint(eqhdl->irq, NULL);
11500 free_irq(eqhdl->irq, eqhdl);
11503 /* Unconfigure MSI-X capability structure */
11504 pci_free_irq_vectors(phba->pcidev);
11511 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
11512 * @phba: pointer to lpfc hba data structure.
11514 * This routine is invoked to enable the MSI interrupt mode to device with
11515 * SLI-4 interface spec. The kernel function pci_alloc_irq_vectors() is
11516 * called to enable the MSI vector. The device driver is responsible for
11517 * calling the request_irq() to register MSI vector with a interrupt the
11518 * handler, which is done in this function.
11522 * other values - error
11525 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
11529 struct lpfc_hba_eq_hdl *eqhdl;
11531 rc = pci_alloc_irq_vectors(phba->pcidev, 1, 1,
11532 PCI_IRQ_MSI | PCI_IRQ_AFFINITY);
11534 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11535 "0487 PCI enable MSI mode success.\n");
11537 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11538 "0488 PCI enable MSI mode failed (%d)\n", rc);
11539 return rc ? rc : -1;
11542 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
11543 0, LPFC_DRIVER_NAME, phba);
11545 pci_free_irq_vectors(phba->pcidev);
11546 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11547 "0490 MSI request_irq failed (%d)\n", rc);
11551 eqhdl = lpfc_get_eq_hdl(0);
11552 eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
11554 cpu = cpumask_first(cpu_present_mask);
11555 lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ, cpu);
11557 for (index = 0; index < phba->cfg_irq_chann; index++) {
11558 eqhdl = lpfc_get_eq_hdl(index);
11559 eqhdl->idx = index;
11566 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
11567 * @phba: pointer to lpfc hba data structure.
11569 * This routine is invoked to enable device interrupt and associate driver's
11570 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
11571 * interface spec. Depends on the interrupt mode configured to the driver,
11572 * the driver will try to fallback from the configured interrupt mode to an
11573 * interrupt mode which is supported by the platform, kernel, and device in
11575 * MSI-X -> MSI -> IRQ.
11579 * other values - error
11582 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
11584 uint32_t intr_mode = LPFC_INTR_ERROR;
11587 if (cfg_mode == 2) {
11588 /* Preparation before conf_msi mbox cmd */
11591 /* Now, try to enable MSI-X interrupt mode */
11592 retval = lpfc_sli4_enable_msix(phba);
11594 /* Indicate initialization to MSI-X mode */
11595 phba->intr_type = MSIX;
11601 /* Fallback to MSI if MSI-X initialization failed */
11602 if (cfg_mode >= 1 && phba->intr_type == NONE) {
11603 retval = lpfc_sli4_enable_msi(phba);
11605 /* Indicate initialization to MSI mode */
11606 phba->intr_type = MSI;
11611 /* Fallback to INTx if both MSI-X/MSI initalization failed */
11612 if (phba->intr_type == NONE) {
11613 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
11614 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
11616 struct lpfc_hba_eq_hdl *eqhdl;
11619 /* Indicate initialization to INTx mode */
11620 phba->intr_type = INTx;
11623 eqhdl = lpfc_get_eq_hdl(0);
11624 eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
11626 cpu = cpumask_first(cpu_present_mask);
11627 lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ,
11629 for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11630 eqhdl = lpfc_get_eq_hdl(idx);
11639 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
11640 * @phba: pointer to lpfc hba data structure.
11642 * This routine is invoked to disable device interrupt and disassociate
11643 * the driver's interrupt handler(s) from interrupt vector(s) to device
11644 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
11645 * will release the interrupt vector(s) for the message signaled interrupt.
11648 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
11650 /* Disable the currently initialized interrupt mode */
11651 if (phba->intr_type == MSIX) {
11653 struct lpfc_hba_eq_hdl *eqhdl;
11655 /* Free up MSI-X multi-message vectors */
11656 for (index = 0; index < phba->cfg_irq_chann; index++) {
11657 eqhdl = lpfc_get_eq_hdl(index);
11658 lpfc_irq_clear_aff(eqhdl);
11659 irq_set_affinity_hint(eqhdl->irq, NULL);
11660 free_irq(eqhdl->irq, eqhdl);
11663 free_irq(phba->pcidev->irq, phba);
11666 pci_free_irq_vectors(phba->pcidev);
11668 /* Reset interrupt management states */
11669 phba->intr_type = NONE;
11670 phba->sli.slistat.sli_intr = 0;
11674 * lpfc_unset_hba - Unset SLI3 hba device initialization
11675 * @phba: pointer to lpfc hba data structure.
11677 * This routine is invoked to unset the HBA device initialization steps to
11678 * a device with SLI-3 interface spec.
11681 lpfc_unset_hba(struct lpfc_hba *phba)
11683 struct lpfc_vport *vport = phba->pport;
11684 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
11686 spin_lock_irq(shost->host_lock);
11687 vport->load_flag |= FC_UNLOADING;
11688 spin_unlock_irq(shost->host_lock);
11690 kfree(phba->vpi_bmask);
11691 kfree(phba->vpi_ids);
11693 lpfc_stop_hba_timers(phba);
11695 phba->pport->work_port_events = 0;
11697 lpfc_sli_hba_down(phba);
11699 lpfc_sli_brdrestart(phba);
11701 lpfc_sli_disable_intr(phba);
11707 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
11708 * @phba: Pointer to HBA context object.
11710 * This function is called in the SLI4 code path to wait for completion
11711 * of device's XRIs exchange busy. It will check the XRI exchange busy
11712 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
11713 * that, it will check the XRI exchange busy on outstanding FCP and ELS
11714 * I/Os every 30 seconds, log error message, and wait forever. Only when
11715 * all XRI exchange busy complete, the driver unload shall proceed with
11716 * invoking the function reset ioctl mailbox command to the CNA and the
11717 * the rest of the driver unload resource release.
11720 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
11722 struct lpfc_sli4_hdw_queue *qp;
11725 int io_xri_cmpl = 1;
11726 int nvmet_xri_cmpl = 1;
11727 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
11729 /* Driver just aborted IOs during the hba_unset process. Pause
11730 * here to give the HBA time to complete the IO and get entries
11731 * into the abts lists.
11733 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
11735 /* Wait for NVME pending IO to flush back to transport. */
11736 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
11737 lpfc_nvme_wait_for_io_drain(phba);
11740 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
11741 qp = &phba->sli4_hba.hdwq[idx];
11742 io_xri_cmpl = list_empty(&qp->lpfc_abts_io_buf_list);
11743 if (!io_xri_cmpl) /* if list is NOT empty */
11749 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11751 list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
11754 while (!els_xri_cmpl || !io_xri_cmpl || !nvmet_xri_cmpl) {
11755 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
11756 if (!nvmet_xri_cmpl)
11757 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11758 "6424 NVMET XRI exchange busy "
11759 "wait time: %d seconds.\n",
11762 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11763 "6100 IO XRI exchange busy "
11764 "wait time: %d seconds.\n",
11767 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11768 "2878 ELS XRI exchange busy "
11769 "wait time: %d seconds.\n",
11771 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
11772 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
11774 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
11775 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
11779 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
11780 qp = &phba->sli4_hba.hdwq[idx];
11781 io_xri_cmpl = list_empty(
11782 &qp->lpfc_abts_io_buf_list);
11783 if (!io_xri_cmpl) /* if list is NOT empty */
11789 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11790 nvmet_xri_cmpl = list_empty(
11791 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
11794 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
11800 * lpfc_sli4_hba_unset - Unset the fcoe hba
11801 * @phba: Pointer to HBA context object.
11803 * This function is called in the SLI4 code path to reset the HBA's FCoE
11804 * function. The caller is not required to hold any lock. This routine
11805 * issues PCI function reset mailbox command to reset the FCoE function.
11806 * At the end of the function, it calls lpfc_hba_down_post function to
11807 * free any pending commands.
11810 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
11813 LPFC_MBOXQ_t *mboxq;
11814 struct pci_dev *pdev = phba->pcidev;
11816 lpfc_stop_hba_timers(phba);
11818 phba->sli4_hba.intr_enable = 0;
11821 * Gracefully wait out the potential current outstanding asynchronous
11825 /* First, block any pending async mailbox command from posted */
11826 spin_lock_irq(&phba->hbalock);
11827 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
11828 spin_unlock_irq(&phba->hbalock);
11829 /* Now, trying to wait it out if we can */
11830 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11832 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
11835 /* Forcefully release the outstanding mailbox command if timed out */
11836 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11837 spin_lock_irq(&phba->hbalock);
11838 mboxq = phba->sli.mbox_active;
11839 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
11840 __lpfc_mbox_cmpl_put(phba, mboxq);
11841 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11842 phba->sli.mbox_active = NULL;
11843 spin_unlock_irq(&phba->hbalock);
11846 /* Abort all iocbs associated with the hba */
11847 lpfc_sli_hba_iocb_abort(phba);
11849 /* Wait for completion of device XRI exchange busy */
11850 lpfc_sli4_xri_exchange_busy_wait(phba);
11852 /* per-phba callback de-registration for hotplug event */
11853 lpfc_cpuhp_remove(phba);
11855 /* Disable PCI subsystem interrupt */
11856 lpfc_sli4_disable_intr(phba);
11858 /* Disable SR-IOV if enabled */
11859 if (phba->cfg_sriov_nr_virtfn)
11860 pci_disable_sriov(pdev);
11862 /* Stop kthread signal shall trigger work_done one more time */
11863 kthread_stop(phba->worker_thread);
11865 /* Disable FW logging to host memory */
11866 lpfc_ras_stop_fwlog(phba);
11868 /* Unset the queues shared with the hardware then release all
11869 * allocated resources.
11871 lpfc_sli4_queue_unset(phba);
11872 lpfc_sli4_queue_destroy(phba);
11874 /* Reset SLI4 HBA FCoE function */
11875 lpfc_pci_function_reset(phba);
11877 /* Free RAS DMA memory */
11878 if (phba->ras_fwlog.ras_enabled)
11879 lpfc_sli4_ras_dma_free(phba);
11881 /* Stop the SLI4 device port */
11883 phba->pport->work_port_events = 0;
11887 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
11888 * @phba: Pointer to HBA context object.
11889 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
11891 * This function is called in the SLI4 code path to read the port's
11892 * sli4 capabilities.
11894 * This function may be be called from any context that can block-wait
11895 * for the completion. The expectation is that this routine is called
11896 * typically from probe_one or from the online routine.
11899 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11902 struct lpfc_mqe *mqe;
11903 struct lpfc_pc_sli4_params *sli4_params;
11907 mqe = &mboxq->u.mqe;
11909 /* Read the port's SLI4 Parameters port capabilities */
11910 lpfc_pc_sli4_params(mboxq);
11911 if (!phba->sli4_hba.intr_enable)
11912 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11914 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
11915 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
11921 sli4_params = &phba->sli4_hba.pc_sli4_params;
11922 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
11923 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
11924 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
11925 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
11926 &mqe->un.sli4_params);
11927 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
11928 &mqe->un.sli4_params);
11929 sli4_params->proto_types = mqe->un.sli4_params.word3;
11930 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
11931 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
11932 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
11933 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
11934 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
11935 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
11936 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
11937 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
11938 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
11939 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
11940 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
11941 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
11942 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
11943 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
11944 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
11945 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
11946 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
11947 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
11948 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
11949 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
11951 /* Make sure that sge_supp_len can be handled by the driver */
11952 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
11953 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
11959 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
11960 * @phba: Pointer to HBA context object.
11961 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
11963 * This function is called in the SLI4 code path to read the port's
11964 * sli4 capabilities.
11966 * This function may be be called from any context that can block-wait
11967 * for the completion. The expectation is that this routine is called
11968 * typically from probe_one or from the online routine.
11971 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11974 struct lpfc_mqe *mqe = &mboxq->u.mqe;
11975 struct lpfc_pc_sli4_params *sli4_params;
11978 bool exp_wqcq_pages = true;
11979 struct lpfc_sli4_parameters *mbx_sli4_parameters;
11982 * By default, the driver assumes the SLI4 port requires RPI
11983 * header postings. The SLI4_PARAM response will correct this
11986 phba->sli4_hba.rpi_hdrs_in_use = 1;
11988 /* Read the port's SLI4 Config Parameters */
11989 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
11990 sizeof(struct lpfc_sli4_cfg_mhdr));
11991 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
11992 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
11993 length, LPFC_SLI4_MBX_EMBED);
11994 if (!phba->sli4_hba.intr_enable)
11995 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11997 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
11998 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
12002 sli4_params = &phba->sli4_hba.pc_sli4_params;
12003 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
12004 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
12005 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
12006 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
12007 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
12008 mbx_sli4_parameters);
12009 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
12010 mbx_sli4_parameters);
12011 if (bf_get(cfg_phwq, mbx_sli4_parameters))
12012 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
12014 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
12015 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
12016 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
12017 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
12018 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
12019 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
12020 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
12021 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
12022 sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
12023 sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
12024 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
12025 sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
12026 sli4_params->pls = bf_get(cfg_pvl, mbx_sli4_parameters);
12027 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
12028 mbx_sli4_parameters);
12029 sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
12030 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
12031 mbx_sli4_parameters);
12032 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
12033 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
12035 /* Check for Extended Pre-Registered SGL support */
12036 phba->cfg_xpsgl = bf_get(cfg_xpsgl, mbx_sli4_parameters);
12038 /* Check for firmware nvme support */
12039 rc = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
12040 bf_get(cfg_xib, mbx_sli4_parameters));
12043 /* Save this to indicate the Firmware supports NVME */
12044 sli4_params->nvme = 1;
12046 /* Firmware NVME support, check driver FC4 NVME support */
12047 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) {
12048 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
12049 "6133 Disabling NVME support: "
12050 "FC4 type not supported: x%x\n",
12051 phba->cfg_enable_fc4_type);
12055 /* No firmware NVME support, check driver FC4 NVME support */
12056 sli4_params->nvme = 0;
12057 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
12058 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
12059 "6101 Disabling NVME support: Not "
12060 "supported by firmware (%d %d) x%x\n",
12061 bf_get(cfg_nvme, mbx_sli4_parameters),
12062 bf_get(cfg_xib, mbx_sli4_parameters),
12063 phba->cfg_enable_fc4_type);
12065 phba->nvme_support = 0;
12066 phba->nvmet_support = 0;
12067 phba->cfg_nvmet_mrq = 0;
12068 phba->cfg_nvme_seg_cnt = 0;
12070 /* If no FC4 type support, move to just SCSI support */
12071 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
12073 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
12077 /* If the NVME FC4 type is enabled, scale the sg_seg_cnt to
12078 * accommodate 512K and 1M IOs in a single nvme buf.
12080 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12081 phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
12083 /* Only embed PBDE for if_type 6, PBDE support requires xib be set */
12084 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
12085 LPFC_SLI_INTF_IF_TYPE_6) || (!bf_get(cfg_xib, mbx_sli4_parameters)))
12086 phba->cfg_enable_pbde = 0;
12089 * To support Suppress Response feature we must satisfy 3 conditions.
12090 * lpfc_suppress_rsp module parameter must be set (default).
12091 * In SLI4-Parameters Descriptor:
12092 * Extended Inline Buffers (XIB) must be supported.
12093 * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
12094 * (double negative).
12096 if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
12097 !(bf_get(cfg_nosr, mbx_sli4_parameters)))
12098 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
12100 phba->cfg_suppress_rsp = 0;
12102 if (bf_get(cfg_eqdr, mbx_sli4_parameters))
12103 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
12105 /* Make sure that sge_supp_len can be handled by the driver */
12106 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
12107 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
12110 * Check whether the adapter supports an embedded copy of the
12111 * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
12112 * to use this option, 128-byte WQEs must be used.
12114 if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
12115 phba->fcp_embed_io = 1;
12117 phba->fcp_embed_io = 0;
12119 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
12120 "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
12121 bf_get(cfg_xib, mbx_sli4_parameters),
12122 phba->cfg_enable_pbde,
12123 phba->fcp_embed_io, phba->nvme_support,
12124 phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
12126 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
12127 LPFC_SLI_INTF_IF_TYPE_2) &&
12128 (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
12129 LPFC_SLI_INTF_FAMILY_LNCR_A0))
12130 exp_wqcq_pages = false;
12132 if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
12133 (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
12135 (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
12136 phba->enab_exp_wqcq_pages = 1;
12138 phba->enab_exp_wqcq_pages = 0;
12140 * Check if the SLI port supports MDS Diagnostics
12142 if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
12143 phba->mds_diags_support = 1;
12145 phba->mds_diags_support = 0;
12148 * Check if the SLI port supports NSLER
12150 if (bf_get(cfg_nsler, mbx_sli4_parameters))
12159 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
12160 * @pdev: pointer to PCI device
12161 * @pid: pointer to PCI device identifier
12163 * This routine is to be called to attach a device with SLI-3 interface spec
12164 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
12165 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
12166 * information of the device and driver to see if the driver state that it can
12167 * support this kind of device. If the match is successful, the driver core
12168 * invokes this routine. If this routine determines it can claim the HBA, it
12169 * does all the initialization that it needs to do to handle the HBA properly.
12172 * 0 - driver can claim the device
12173 * negative value - driver can not claim the device
12176 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
12178 struct lpfc_hba *phba;
12179 struct lpfc_vport *vport = NULL;
12180 struct Scsi_Host *shost = NULL;
12182 uint32_t cfg_mode, intr_mode;
12184 /* Allocate memory for HBA structure */
12185 phba = lpfc_hba_alloc(pdev);
12189 /* Perform generic PCI device enabling operation */
12190 error = lpfc_enable_pci_dev(phba);
12192 goto out_free_phba;
12194 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
12195 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
12197 goto out_disable_pci_dev;
12199 /* Set up SLI-3 specific device PCI memory space */
12200 error = lpfc_sli_pci_mem_setup(phba);
12202 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12203 "1402 Failed to set up pci memory space.\n");
12204 goto out_disable_pci_dev;
12207 /* Set up SLI-3 specific device driver resources */
12208 error = lpfc_sli_driver_resource_setup(phba);
12210 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12211 "1404 Failed to set up driver resource.\n");
12212 goto out_unset_pci_mem_s3;
12215 /* Initialize and populate the iocb list per host */
12217 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
12219 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12220 "1405 Failed to initialize iocb list.\n");
12221 goto out_unset_driver_resource_s3;
12224 /* Set up common device driver resources */
12225 error = lpfc_setup_driver_resource_phase2(phba);
12227 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12228 "1406 Failed to set up driver resource.\n");
12229 goto out_free_iocb_list;
12232 /* Get the default values for Model Name and Description */
12233 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
12235 /* Create SCSI host to the physical port */
12236 error = lpfc_create_shost(phba);
12238 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12239 "1407 Failed to create scsi host.\n");
12240 goto out_unset_driver_resource;
12243 /* Configure sysfs attributes */
12244 vport = phba->pport;
12245 error = lpfc_alloc_sysfs_attr(vport);
12247 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12248 "1476 Failed to allocate sysfs attr\n");
12249 goto out_destroy_shost;
12252 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
12253 /* Now, trying to enable interrupt and bring up the device */
12254 cfg_mode = phba->cfg_use_msi;
12256 /* Put device to a known state before enabling interrupt */
12257 lpfc_stop_port(phba);
12258 /* Configure and enable interrupt */
12259 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
12260 if (intr_mode == LPFC_INTR_ERROR) {
12261 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12262 "0431 Failed to enable interrupt.\n");
12264 goto out_free_sysfs_attr;
12266 /* SLI-3 HBA setup */
12267 if (lpfc_sli_hba_setup(phba)) {
12268 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12269 "1477 Failed to set up hba\n");
12271 goto out_remove_device;
12274 /* Wait 50ms for the interrupts of previous mailbox commands */
12276 /* Check active interrupts on message signaled interrupts */
12277 if (intr_mode == 0 ||
12278 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
12279 /* Log the current active interrupt mode */
12280 phba->intr_mode = intr_mode;
12281 lpfc_log_intr_mode(phba, intr_mode);
12284 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12285 "0447 Configure interrupt mode (%d) "
12286 "failed active interrupt test.\n",
12288 /* Disable the current interrupt mode */
12289 lpfc_sli_disable_intr(phba);
12290 /* Try next level of interrupt mode */
12291 cfg_mode = --intr_mode;
12295 /* Perform post initialization setup */
12296 lpfc_post_init_setup(phba);
12298 /* Check if there are static vports to be created. */
12299 lpfc_create_static_vport(phba);
12304 lpfc_unset_hba(phba);
12305 out_free_sysfs_attr:
12306 lpfc_free_sysfs_attr(vport);
12308 lpfc_destroy_shost(phba);
12309 out_unset_driver_resource:
12310 lpfc_unset_driver_resource_phase2(phba);
12311 out_free_iocb_list:
12312 lpfc_free_iocb_list(phba);
12313 out_unset_driver_resource_s3:
12314 lpfc_sli_driver_resource_unset(phba);
12315 out_unset_pci_mem_s3:
12316 lpfc_sli_pci_mem_unset(phba);
12317 out_disable_pci_dev:
12318 lpfc_disable_pci_dev(phba);
12320 scsi_host_put(shost);
12322 lpfc_hba_free(phba);
12327 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
12328 * @pdev: pointer to PCI device
12330 * This routine is to be called to disattach a device with SLI-3 interface
12331 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
12332 * removed from PCI bus, it performs all the necessary cleanup for the HBA
12333 * device to be removed from the PCI subsystem properly.
12336 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
12338 struct Scsi_Host *shost = pci_get_drvdata(pdev);
12339 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
12340 struct lpfc_vport **vports;
12341 struct lpfc_hba *phba = vport->phba;
12344 spin_lock_irq(&phba->hbalock);
12345 vport->load_flag |= FC_UNLOADING;
12346 spin_unlock_irq(&phba->hbalock);
12348 lpfc_free_sysfs_attr(vport);
12350 /* Release all the vports against this physical port */
12351 vports = lpfc_create_vport_work_array(phba);
12352 if (vports != NULL)
12353 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
12354 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
12356 fc_vport_terminate(vports[i]->fc_vport);
12358 lpfc_destroy_vport_work_array(phba, vports);
12360 /* Remove FC host and then SCSI host with the physical port */
12361 fc_remove_host(shost);
12362 scsi_remove_host(shost);
12364 lpfc_cleanup(vport);
12367 * Bring down the SLI Layer. This step disable all interrupts,
12368 * clears the rings, discards all mailbox commands, and resets
12372 /* HBA interrupt will be disabled after this call */
12373 lpfc_sli_hba_down(phba);
12374 /* Stop kthread signal shall trigger work_done one more time */
12375 kthread_stop(phba->worker_thread);
12376 /* Final cleanup of txcmplq and reset the HBA */
12377 lpfc_sli_brdrestart(phba);
12379 kfree(phba->vpi_bmask);
12380 kfree(phba->vpi_ids);
12382 lpfc_stop_hba_timers(phba);
12383 spin_lock_irq(&phba->port_list_lock);
12384 list_del_init(&vport->listentry);
12385 spin_unlock_irq(&phba->port_list_lock);
12387 lpfc_debugfs_terminate(vport);
12389 /* Disable SR-IOV if enabled */
12390 if (phba->cfg_sriov_nr_virtfn)
12391 pci_disable_sriov(pdev);
12393 /* Disable interrupt */
12394 lpfc_sli_disable_intr(phba);
12396 scsi_host_put(shost);
12399 * Call scsi_free before mem_free since scsi bufs are released to their
12400 * corresponding pools here.
12402 lpfc_scsi_free(phba);
12403 lpfc_free_iocb_list(phba);
12405 lpfc_mem_free_all(phba);
12407 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
12408 phba->hbqslimp.virt, phba->hbqslimp.phys);
12410 /* Free resources associated with SLI2 interface */
12411 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
12412 phba->slim2p.virt, phba->slim2p.phys);
12414 /* unmap adapter SLIM and Control Registers */
12415 iounmap(phba->ctrl_regs_memmap_p);
12416 iounmap(phba->slim_memmap_p);
12418 lpfc_hba_free(phba);
12420 pci_release_mem_regions(pdev);
12421 pci_disable_device(pdev);
12425 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
12426 * @pdev: pointer to PCI device
12427 * @msg: power management message
12429 * This routine is to be called from the kernel's PCI subsystem to support
12430 * system Power Management (PM) to device with SLI-3 interface spec. When
12431 * PM invokes this method, it quiesces the device by stopping the driver's
12432 * worker thread for the device, turning off device's interrupt and DMA,
12433 * and bring the device offline. Note that as the driver implements the
12434 * minimum PM requirements to a power-aware driver's PM support for the
12435 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
12436 * to the suspend() method call will be treated as SUSPEND and the driver will
12437 * fully reinitialize its device during resume() method call, the driver will
12438 * set device to PCI_D3hot state in PCI config space instead of setting it
12439 * according to the @msg provided by the PM.
12442 * 0 - driver suspended the device
12446 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
12448 struct Scsi_Host *shost = pci_get_drvdata(pdev);
12449 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12451 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12452 "0473 PCI device Power Management suspend.\n");
12454 /* Bring down the device */
12455 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12456 lpfc_offline(phba);
12457 kthread_stop(phba->worker_thread);
12459 /* Disable interrupt from device */
12460 lpfc_sli_disable_intr(phba);
12462 /* Save device state to PCI config space */
12463 pci_save_state(pdev);
12464 pci_set_power_state(pdev, PCI_D3hot);
12470 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
12471 * @pdev: pointer to PCI device
12473 * This routine is to be called from the kernel's PCI subsystem to support
12474 * system Power Management (PM) to device with SLI-3 interface spec. When PM
12475 * invokes this method, it restores the device's PCI config space state and
12476 * fully reinitializes the device and brings it online. Note that as the
12477 * driver implements the minimum PM requirements to a power-aware driver's
12478 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
12479 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
12480 * driver will fully reinitialize its device during resume() method call,
12481 * the device will be set to PCI_D0 directly in PCI config space before
12482 * restoring the state.
12485 * 0 - driver suspended the device
12489 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
12491 struct Scsi_Host *shost = pci_get_drvdata(pdev);
12492 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12493 uint32_t intr_mode;
12496 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12497 "0452 PCI device Power Management resume.\n");
12499 /* Restore device state from PCI config space */
12500 pci_set_power_state(pdev, PCI_D0);
12501 pci_restore_state(pdev);
12504 * As the new kernel behavior of pci_restore_state() API call clears
12505 * device saved_state flag, need to save the restored state again.
12507 pci_save_state(pdev);
12509 if (pdev->is_busmaster)
12510 pci_set_master(pdev);
12512 /* Startup the kernel thread for this host adapter. */
12513 phba->worker_thread = kthread_run(lpfc_do_work, phba,
12514 "lpfc_worker_%d", phba->brd_no);
12515 if (IS_ERR(phba->worker_thread)) {
12516 error = PTR_ERR(phba->worker_thread);
12517 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12518 "0434 PM resume failed to start worker "
12519 "thread: error=x%x.\n", error);
12523 /* Configure and enable interrupt */
12524 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
12525 if (intr_mode == LPFC_INTR_ERROR) {
12526 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12527 "0430 PM resume Failed to enable interrupt\n");
12530 phba->intr_mode = intr_mode;
12532 /* Restart HBA and bring it online */
12533 lpfc_sli_brdrestart(phba);
12536 /* Log the current active interrupt mode */
12537 lpfc_log_intr_mode(phba, phba->intr_mode);
12543 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
12544 * @phba: pointer to lpfc hba data structure.
12546 * This routine is called to prepare the SLI3 device for PCI slot recover. It
12547 * aborts all the outstanding SCSI I/Os to the pci device.
12550 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
12552 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12553 "2723 PCI channel I/O abort preparing for recovery\n");
12556 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
12557 * and let the SCSI mid-layer to retry them to recover.
12559 lpfc_sli_abort_fcp_rings(phba);
12563 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
12564 * @phba: pointer to lpfc hba data structure.
12566 * This routine is called to prepare the SLI3 device for PCI slot reset. It
12567 * disables the device interrupt and pci device, and aborts the internal FCP
12571 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
12573 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12574 "2710 PCI channel disable preparing for reset\n");
12576 /* Block any management I/Os to the device */
12577 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
12579 /* Block all SCSI devices' I/Os on the host */
12580 lpfc_scsi_dev_block(phba);
12582 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
12583 lpfc_sli_flush_io_rings(phba);
12585 /* stop all timers */
12586 lpfc_stop_hba_timers(phba);
12588 /* Disable interrupt and pci device */
12589 lpfc_sli_disable_intr(phba);
12590 pci_disable_device(phba->pcidev);
12594 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
12595 * @phba: pointer to lpfc hba data structure.
12597 * This routine is called to prepare the SLI3 device for PCI slot permanently
12598 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
12602 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
12604 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12605 "2711 PCI channel permanent disable for failure\n");
12606 /* Block all SCSI devices' I/Os on the host */
12607 lpfc_scsi_dev_block(phba);
12609 /* stop all timers */
12610 lpfc_stop_hba_timers(phba);
12612 /* Clean up all driver's outstanding SCSI I/Os */
12613 lpfc_sli_flush_io_rings(phba);
12617 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
12618 * @pdev: pointer to PCI device.
12619 * @state: the current PCI connection state.
12621 * This routine is called from the PCI subsystem for I/O error handling to
12622 * device with SLI-3 interface spec. This function is called by the PCI
12623 * subsystem after a PCI bus error affecting this device has been detected.
12624 * When this function is invoked, it will need to stop all the I/Os and
12625 * interrupt(s) to the device. Once that is done, it will return
12626 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
12630 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
12631 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12632 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12634 static pci_ers_result_t
12635 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
12637 struct Scsi_Host *shost = pci_get_drvdata(pdev);
12638 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12641 case pci_channel_io_normal:
12642 /* Non-fatal error, prepare for recovery */
12643 lpfc_sli_prep_dev_for_recover(phba);
12644 return PCI_ERS_RESULT_CAN_RECOVER;
12645 case pci_channel_io_frozen:
12646 /* Fatal error, prepare for slot reset */
12647 lpfc_sli_prep_dev_for_reset(phba);
12648 return PCI_ERS_RESULT_NEED_RESET;
12649 case pci_channel_io_perm_failure:
12650 /* Permanent failure, prepare for device down */
12651 lpfc_sli_prep_dev_for_perm_failure(phba);
12652 return PCI_ERS_RESULT_DISCONNECT;
12654 /* Unknown state, prepare and request slot reset */
12655 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12656 "0472 Unknown PCI error state: x%x\n", state);
12657 lpfc_sli_prep_dev_for_reset(phba);
12658 return PCI_ERS_RESULT_NEED_RESET;
12663 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
12664 * @pdev: pointer to PCI device.
12666 * This routine is called from the PCI subsystem for error handling to
12667 * device with SLI-3 interface spec. This is called after PCI bus has been
12668 * reset to restart the PCI card from scratch, as if from a cold-boot.
12669 * During the PCI subsystem error recovery, after driver returns
12670 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
12671 * recovery and then call this routine before calling the .resume method
12672 * to recover the device. This function will initialize the HBA device,
12673 * enable the interrupt, but it will just put the HBA to offline state
12674 * without passing any I/O traffic.
12677 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
12678 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12680 static pci_ers_result_t
12681 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
12683 struct Scsi_Host *shost = pci_get_drvdata(pdev);
12684 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12685 struct lpfc_sli *psli = &phba->sli;
12686 uint32_t intr_mode;
12688 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
12689 if (pci_enable_device_mem(pdev)) {
12690 printk(KERN_ERR "lpfc: Cannot re-enable "
12691 "PCI device after reset.\n");
12692 return PCI_ERS_RESULT_DISCONNECT;
12695 pci_restore_state(pdev);
12698 * As the new kernel behavior of pci_restore_state() API call clears
12699 * device saved_state flag, need to save the restored state again.
12701 pci_save_state(pdev);
12703 if (pdev->is_busmaster)
12704 pci_set_master(pdev);
12706 spin_lock_irq(&phba->hbalock);
12707 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
12708 spin_unlock_irq(&phba->hbalock);
12710 /* Configure and enable interrupt */
12711 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
12712 if (intr_mode == LPFC_INTR_ERROR) {
12713 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12714 "0427 Cannot re-enable interrupt after "
12716 return PCI_ERS_RESULT_DISCONNECT;
12718 phba->intr_mode = intr_mode;
12720 /* Take device offline, it will perform cleanup */
12721 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12722 lpfc_offline(phba);
12723 lpfc_sli_brdrestart(phba);
12725 /* Log the current active interrupt mode */
12726 lpfc_log_intr_mode(phba, phba->intr_mode);
12728 return PCI_ERS_RESULT_RECOVERED;
12732 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
12733 * @pdev: pointer to PCI device
12735 * This routine is called from the PCI subsystem for error handling to device
12736 * with SLI-3 interface spec. It is called when kernel error recovery tells
12737 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
12738 * error recovery. After this call, traffic can start to flow from this device
12742 lpfc_io_resume_s3(struct pci_dev *pdev)
12744 struct Scsi_Host *shost = pci_get_drvdata(pdev);
12745 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12747 /* Bring device online, it will be no-op for non-fatal error resume */
12752 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
12753 * @phba: pointer to lpfc hba data structure.
12755 * returns the number of ELS/CT IOCBs to reserve
12758 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
12760 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
12762 if (phba->sli_rev == LPFC_SLI_REV4) {
12763 if (max_xri <= 100)
12765 else if (max_xri <= 256)
12767 else if (max_xri <= 512)
12769 else if (max_xri <= 1024)
12771 else if (max_xri <= 1536)
12773 else if (max_xri <= 2048)
12782 * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
12783 * @phba: pointer to lpfc hba data structure.
12785 * returns the number of ELS/CT + NVMET IOCBs to reserve
12788 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
12790 int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
12792 if (phba->nvmet_support)
12793 max_xri += LPFC_NVMET_BUF_POST;
12799 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
12800 uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
12801 const struct firmware *fw)
12805 /* Three cases: (1) FW was not supported on the detected adapter.
12806 * (2) FW update has been locked out administratively.
12807 * (3) Some other error during FW update.
12808 * In each case, an unmaskable message is written to the console
12809 * for admin diagnosis.
12811 if (offset == ADD_STATUS_FW_NOT_SUPPORTED ||
12812 (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC &&
12813 magic_number != MAGIC_NUMBER_G6) ||
12814 (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC &&
12815 magic_number != MAGIC_NUMBER_G7)) {
12816 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12817 "3030 This firmware version is not supported on"
12818 " this HBA model. Device:%x Magic:%x Type:%x "
12819 "ID:%x Size %d %zd\n",
12820 phba->pcidev->device, magic_number, ftype, fid,
12823 } else if (offset == ADD_STATUS_FW_DOWNLOAD_HW_DISABLED) {
12824 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12825 "3021 Firmware downloads have been prohibited "
12826 "by a system configuration setting on "
12827 "Device:%x Magic:%x Type:%x ID:%x Size %d "
12829 phba->pcidev->device, magic_number, ftype, fid,
12833 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12834 "3022 FW Download failed. Add Status x%x "
12835 "Device:%x Magic:%x Type:%x ID:%x Size %d "
12837 offset, phba->pcidev->device, magic_number,
12838 ftype, fid, fsize, fw->size);
12845 * lpfc_write_firmware - attempt to write a firmware image to the port
12846 * @fw: pointer to firmware image returned from request_firmware.
12847 * @context: pointer to firmware image returned from request_firmware.
12848 * @ret: return value this routine provides to the caller.
12852 lpfc_write_firmware(const struct firmware *fw, void *context)
12854 struct lpfc_hba *phba = (struct lpfc_hba *)context;
12855 char fwrev[FW_REV_STR_SIZE];
12856 struct lpfc_grp_hdr *image;
12857 struct list_head dma_buffer_list;
12859 struct lpfc_dmabuf *dmabuf, *next;
12860 uint32_t offset = 0, temp_offset = 0;
12861 uint32_t magic_number, ftype, fid, fsize;
12863 /* It can be null in no-wait mode, sanity check */
12868 image = (struct lpfc_grp_hdr *)fw->data;
12870 magic_number = be32_to_cpu(image->magic_number);
12871 ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
12872 fid = bf_get_be32(lpfc_grp_hdr_id, image);
12873 fsize = be32_to_cpu(image->size);
12875 INIT_LIST_HEAD(&dma_buffer_list);
12876 lpfc_decode_firmware_rev(phba, fwrev, 1);
12877 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
12878 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12879 "3023 Updating Firmware, Current Version:%s "
12880 "New Version:%s\n",
12881 fwrev, image->revision);
12882 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
12883 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
12889 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
12893 if (!dmabuf->virt) {
12898 list_add_tail(&dmabuf->list, &dma_buffer_list);
12900 while (offset < fw->size) {
12901 temp_offset = offset;
12902 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
12903 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
12904 memcpy(dmabuf->virt,
12905 fw->data + temp_offset,
12906 fw->size - temp_offset);
12907 temp_offset = fw->size;
12910 memcpy(dmabuf->virt, fw->data + temp_offset,
12912 temp_offset += SLI4_PAGE_SIZE;
12914 rc = lpfc_wr_object(phba, &dma_buffer_list,
12915 (fw->size - offset), &offset);
12917 rc = lpfc_log_write_firmware_error(phba, offset,
12928 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12929 "3029 Skipped Firmware update, Current "
12930 "Version:%s New Version:%s\n",
12931 fwrev, image->revision);
12934 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
12935 list_del(&dmabuf->list);
12936 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
12937 dmabuf->virt, dmabuf->phys);
12940 release_firmware(fw);
12943 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12944 "3062 Firmware update error, status %d.\n", rc);
12946 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12947 "3024 Firmware update success: size %d.\n", rc);
12951 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
12952 * @phba: pointer to lpfc hba data structure.
12954 * This routine is called to perform Linux generic firmware upgrade on device
12955 * that supports such feature.
12958 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
12960 uint8_t file_name[ELX_MODEL_NAME_SIZE];
12962 const struct firmware *fw;
12964 /* Only supported on SLI4 interface type 2 for now */
12965 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
12966 LPFC_SLI_INTF_IF_TYPE_2)
12969 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
12971 if (fw_upgrade == INT_FW_UPGRADE) {
12972 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
12973 file_name, &phba->pcidev->dev,
12974 GFP_KERNEL, (void *)phba,
12975 lpfc_write_firmware);
12976 } else if (fw_upgrade == RUN_FW_UPGRADE) {
12977 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
12979 lpfc_write_firmware(fw, (void *)phba);
12988 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
12989 * @pdev: pointer to PCI device
12990 * @pid: pointer to PCI device identifier
12992 * This routine is called from the kernel's PCI subsystem to device with
12993 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
12994 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
12995 * information of the device and driver to see if the driver state that it
12996 * can support this kind of device. If the match is successful, the driver
12997 * core invokes this routine. If this routine determines it can claim the HBA,
12998 * it does all the initialization that it needs to do to handle the HBA
13002 * 0 - driver can claim the device
13003 * negative value - driver can not claim the device
13006 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
13008 struct lpfc_hba *phba;
13009 struct lpfc_vport *vport = NULL;
13010 struct Scsi_Host *shost = NULL;
13012 uint32_t cfg_mode, intr_mode;
13014 /* Allocate memory for HBA structure */
13015 phba = lpfc_hba_alloc(pdev);
13019 /* Perform generic PCI device enabling operation */
13020 error = lpfc_enable_pci_dev(phba);
13022 goto out_free_phba;
13024 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
13025 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
13027 goto out_disable_pci_dev;
13029 /* Set up SLI-4 specific device PCI memory space */
13030 error = lpfc_sli4_pci_mem_setup(phba);
13032 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13033 "1410 Failed to set up pci memory space.\n");
13034 goto out_disable_pci_dev;
13037 /* Set up SLI-4 Specific device driver resources */
13038 error = lpfc_sli4_driver_resource_setup(phba);
13040 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13041 "1412 Failed to set up driver resource.\n");
13042 goto out_unset_pci_mem_s4;
13045 INIT_LIST_HEAD(&phba->active_rrq_list);
13046 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
13048 /* Set up common device driver resources */
13049 error = lpfc_setup_driver_resource_phase2(phba);
13051 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13052 "1414 Failed to set up driver resource.\n");
13053 goto out_unset_driver_resource_s4;
13056 /* Get the default values for Model Name and Description */
13057 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
13059 /* Now, trying to enable interrupt and bring up the device */
13060 cfg_mode = phba->cfg_use_msi;
13062 /* Put device to a known state before enabling interrupt */
13063 phba->pport = NULL;
13064 lpfc_stop_port(phba);
13066 /* Init cpu_map array */
13067 lpfc_cpu_map_array_init(phba);
13069 /* Init hba_eq_hdl array */
13070 lpfc_hba_eq_hdl_array_init(phba);
13072 /* Configure and enable interrupt */
13073 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
13074 if (intr_mode == LPFC_INTR_ERROR) {
13075 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13076 "0426 Failed to enable interrupt.\n");
13078 goto out_unset_driver_resource;
13080 /* Default to single EQ for non-MSI-X */
13081 if (phba->intr_type != MSIX) {
13082 phba->cfg_irq_chann = 1;
13083 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13084 if (phba->nvmet_support)
13085 phba->cfg_nvmet_mrq = 1;
13088 lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
13090 /* Create SCSI host to the physical port */
13091 error = lpfc_create_shost(phba);
13093 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13094 "1415 Failed to create scsi host.\n");
13095 goto out_disable_intr;
13097 vport = phba->pport;
13098 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
13100 /* Configure sysfs attributes */
13101 error = lpfc_alloc_sysfs_attr(vport);
13103 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13104 "1416 Failed to allocate sysfs attr\n");
13105 goto out_destroy_shost;
13108 /* Set up SLI-4 HBA */
13109 if (lpfc_sli4_hba_setup(phba)) {
13110 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13111 "1421 Failed to set up hba\n");
13113 goto out_free_sysfs_attr;
13116 /* Log the current active interrupt mode */
13117 phba->intr_mode = intr_mode;
13118 lpfc_log_intr_mode(phba, intr_mode);
13120 /* Perform post initialization setup */
13121 lpfc_post_init_setup(phba);
13123 /* NVME support in FW earlier in the driver load corrects the
13124 * FC4 type making a check for nvme_support unnecessary.
13126 if (phba->nvmet_support == 0) {
13127 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13128 /* Create NVME binding with nvme_fc_transport. This
13129 * ensures the vport is initialized. If the localport
13130 * create fails, it should not unload the driver to
13131 * support field issues.
13133 error = lpfc_nvme_create_localport(vport);
13135 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13136 "6004 NVME registration "
13137 "failed, error x%x\n",
13143 /* check for firmware upgrade or downgrade */
13144 if (phba->cfg_request_firmware_upgrade)
13145 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
13147 /* Check if there are static vports to be created. */
13148 lpfc_create_static_vport(phba);
13150 /* Enable RAS FW log support */
13151 lpfc_sli4_ras_setup(phba);
13153 INIT_LIST_HEAD(&phba->poll_list);
13154 cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state, &phba->cpuhp);
13158 out_free_sysfs_attr:
13159 lpfc_free_sysfs_attr(vport);
13161 lpfc_destroy_shost(phba);
13163 lpfc_sli4_disable_intr(phba);
13164 out_unset_driver_resource:
13165 lpfc_unset_driver_resource_phase2(phba);
13166 out_unset_driver_resource_s4:
13167 lpfc_sli4_driver_resource_unset(phba);
13168 out_unset_pci_mem_s4:
13169 lpfc_sli4_pci_mem_unset(phba);
13170 out_disable_pci_dev:
13171 lpfc_disable_pci_dev(phba);
13173 scsi_host_put(shost);
13175 lpfc_hba_free(phba);
13180 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
13181 * @pdev: pointer to PCI device
13183 * This routine is called from the kernel's PCI subsystem to device with
13184 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
13185 * removed from PCI bus, it performs all the necessary cleanup for the HBA
13186 * device to be removed from the PCI subsystem properly.
13189 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
13191 struct Scsi_Host *shost = pci_get_drvdata(pdev);
13192 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
13193 struct lpfc_vport **vports;
13194 struct lpfc_hba *phba = vport->phba;
13197 /* Mark the device unloading flag */
13198 spin_lock_irq(&phba->hbalock);
13199 vport->load_flag |= FC_UNLOADING;
13200 spin_unlock_irq(&phba->hbalock);
13202 /* Free the HBA sysfs attributes */
13203 lpfc_free_sysfs_attr(vport);
13205 /* Release all the vports against this physical port */
13206 vports = lpfc_create_vport_work_array(phba);
13207 if (vports != NULL)
13208 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
13209 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
13211 fc_vport_terminate(vports[i]->fc_vport);
13213 lpfc_destroy_vport_work_array(phba, vports);
13215 /* Remove FC host and then SCSI host with the physical port */
13216 fc_remove_host(shost);
13217 scsi_remove_host(shost);
13219 /* Perform ndlp cleanup on the physical port. The nvme and nvmet
13220 * localports are destroyed after to cleanup all transport memory.
13222 lpfc_cleanup(vport);
13223 lpfc_nvmet_destroy_targetport(phba);
13224 lpfc_nvme_destroy_localport(vport);
13226 /* De-allocate multi-XRI pools */
13227 if (phba->cfg_xri_rebalancing)
13228 lpfc_destroy_multixri_pools(phba);
13231 * Bring down the SLI Layer. This step disables all interrupts,
13232 * clears the rings, discards all mailbox commands, and resets
13233 * the HBA FCoE function.
13235 lpfc_debugfs_terminate(vport);
13237 lpfc_stop_hba_timers(phba);
13238 spin_lock_irq(&phba->port_list_lock);
13239 list_del_init(&vport->listentry);
13240 spin_unlock_irq(&phba->port_list_lock);
13242 /* Perform scsi free before driver resource_unset since scsi
13243 * buffers are released to their corresponding pools here.
13245 lpfc_io_free(phba);
13246 lpfc_free_iocb_list(phba);
13247 lpfc_sli4_hba_unset(phba);
13249 lpfc_unset_driver_resource_phase2(phba);
13250 lpfc_sli4_driver_resource_unset(phba);
13252 /* Unmap adapter Control and Doorbell registers */
13253 lpfc_sli4_pci_mem_unset(phba);
13255 /* Release PCI resources and disable device's PCI function */
13256 scsi_host_put(shost);
13257 lpfc_disable_pci_dev(phba);
13259 /* Finally, free the driver's device data structure */
13260 lpfc_hba_free(phba);
13266 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
13267 * @pdev: pointer to PCI device
13268 * @msg: power management message
13270 * This routine is called from the kernel's PCI subsystem to support system
13271 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
13272 * this method, it quiesces the device by stopping the driver's worker
13273 * thread for the device, turning off device's interrupt and DMA, and bring
13274 * the device offline. Note that as the driver implements the minimum PM
13275 * requirements to a power-aware driver's PM support for suspend/resume -- all
13276 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
13277 * method call will be treated as SUSPEND and the driver will fully
13278 * reinitialize its device during resume() method call, the driver will set
13279 * device to PCI_D3hot state in PCI config space instead of setting it
13280 * according to the @msg provided by the PM.
13283 * 0 - driver suspended the device
13287 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
13289 struct Scsi_Host *shost = pci_get_drvdata(pdev);
13290 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13292 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13293 "2843 PCI device Power Management suspend.\n");
13295 /* Bring down the device */
13296 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
13297 lpfc_offline(phba);
13298 kthread_stop(phba->worker_thread);
13300 /* Disable interrupt from device */
13301 lpfc_sli4_disable_intr(phba);
13302 lpfc_sli4_queue_destroy(phba);
13304 /* Save device state to PCI config space */
13305 pci_save_state(pdev);
13306 pci_set_power_state(pdev, PCI_D3hot);
13312 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
13313 * @pdev: pointer to PCI device
13315 * This routine is called from the kernel's PCI subsystem to support system
13316 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
13317 * this method, it restores the device's PCI config space state and fully
13318 * reinitializes the device and brings it online. Note that as the driver
13319 * implements the minimum PM requirements to a power-aware driver's PM for
13320 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
13321 * to the suspend() method call will be treated as SUSPEND and the driver
13322 * will fully reinitialize its device during resume() method call, the device
13323 * will be set to PCI_D0 directly in PCI config space before restoring the
13327 * 0 - driver suspended the device
13331 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
13333 struct Scsi_Host *shost = pci_get_drvdata(pdev);
13334 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13335 uint32_t intr_mode;
13338 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13339 "0292 PCI device Power Management resume.\n");
13341 /* Restore device state from PCI config space */
13342 pci_set_power_state(pdev, PCI_D0);
13343 pci_restore_state(pdev);
13346 * As the new kernel behavior of pci_restore_state() API call clears
13347 * device saved_state flag, need to save the restored state again.
13349 pci_save_state(pdev);
13351 if (pdev->is_busmaster)
13352 pci_set_master(pdev);
13354 /* Startup the kernel thread for this host adapter. */
13355 phba->worker_thread = kthread_run(lpfc_do_work, phba,
13356 "lpfc_worker_%d", phba->brd_no);
13357 if (IS_ERR(phba->worker_thread)) {
13358 error = PTR_ERR(phba->worker_thread);
13359 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13360 "0293 PM resume failed to start worker "
13361 "thread: error=x%x.\n", error);
13365 /* Configure and enable interrupt */
13366 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
13367 if (intr_mode == LPFC_INTR_ERROR) {
13368 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13369 "0294 PM resume Failed to enable interrupt\n");
13372 phba->intr_mode = intr_mode;
13374 /* Restart HBA and bring it online */
13375 lpfc_sli_brdrestart(phba);
13378 /* Log the current active interrupt mode */
13379 lpfc_log_intr_mode(phba, phba->intr_mode);
13385 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
13386 * @phba: pointer to lpfc hba data structure.
13388 * This routine is called to prepare the SLI4 device for PCI slot recover. It
13389 * aborts all the outstanding SCSI I/Os to the pci device.
13392 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
13394 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13395 "2828 PCI channel I/O abort preparing for recovery\n");
13397 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
13398 * and let the SCSI mid-layer to retry them to recover.
13400 lpfc_sli_abort_fcp_rings(phba);
13404 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
13405 * @phba: pointer to lpfc hba data structure.
13407 * This routine is called to prepare the SLI4 device for PCI slot reset. It
13408 * disables the device interrupt and pci device, and aborts the internal FCP
13412 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
13414 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13415 "2826 PCI channel disable preparing for reset\n");
13417 /* Block any management I/Os to the device */
13418 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
13420 /* Block all SCSI devices' I/Os on the host */
13421 lpfc_scsi_dev_block(phba);
13423 /* Flush all driver's outstanding I/Os as we are to reset */
13424 lpfc_sli_flush_io_rings(phba);
13426 /* stop all timers */
13427 lpfc_stop_hba_timers(phba);
13429 /* Disable interrupt and pci device */
13430 lpfc_sli4_disable_intr(phba);
13431 lpfc_sli4_queue_destroy(phba);
13432 pci_disable_device(phba->pcidev);
13436 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
13437 * @phba: pointer to lpfc hba data structure.
13439 * This routine is called to prepare the SLI4 device for PCI slot permanently
13440 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
13444 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
13446 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13447 "2827 PCI channel permanent disable for failure\n");
13449 /* Block all SCSI devices' I/Os on the host */
13450 lpfc_scsi_dev_block(phba);
13452 /* stop all timers */
13453 lpfc_stop_hba_timers(phba);
13455 /* Clean up all driver's outstanding I/Os */
13456 lpfc_sli_flush_io_rings(phba);
13460 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
13461 * @pdev: pointer to PCI device.
13462 * @state: the current PCI connection state.
13464 * This routine is called from the PCI subsystem for error handling to device
13465 * with SLI-4 interface spec. This function is called by the PCI subsystem
13466 * after a PCI bus error affecting this device has been detected. When this
13467 * function is invoked, it will need to stop all the I/Os and interrupt(s)
13468 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
13469 * for the PCI subsystem to perform proper recovery as desired.
13472 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
13473 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13475 static pci_ers_result_t
13476 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
13478 struct Scsi_Host *shost = pci_get_drvdata(pdev);
13479 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13482 case pci_channel_io_normal:
13483 /* Non-fatal error, prepare for recovery */
13484 lpfc_sli4_prep_dev_for_recover(phba);
13485 return PCI_ERS_RESULT_CAN_RECOVER;
13486 case pci_channel_io_frozen:
13487 /* Fatal error, prepare for slot reset */
13488 lpfc_sli4_prep_dev_for_reset(phba);
13489 return PCI_ERS_RESULT_NEED_RESET;
13490 case pci_channel_io_perm_failure:
13491 /* Permanent failure, prepare for device down */
13492 lpfc_sli4_prep_dev_for_perm_failure(phba);
13493 return PCI_ERS_RESULT_DISCONNECT;
13495 /* Unknown state, prepare and request slot reset */
13496 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13497 "2825 Unknown PCI error state: x%x\n", state);
13498 lpfc_sli4_prep_dev_for_reset(phba);
13499 return PCI_ERS_RESULT_NEED_RESET;
13504 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
13505 * @pdev: pointer to PCI device.
13507 * This routine is called from the PCI subsystem for error handling to device
13508 * with SLI-4 interface spec. It is called after PCI bus has been reset to
13509 * restart the PCI card from scratch, as if from a cold-boot. During the
13510 * PCI subsystem error recovery, after the driver returns
13511 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
13512 * recovery and then call this routine before calling the .resume method to
13513 * recover the device. This function will initialize the HBA device, enable
13514 * the interrupt, but it will just put the HBA to offline state without
13515 * passing any I/O traffic.
13518 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
13519 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13521 static pci_ers_result_t
13522 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
13524 struct Scsi_Host *shost = pci_get_drvdata(pdev);
13525 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13526 struct lpfc_sli *psli = &phba->sli;
13527 uint32_t intr_mode;
13529 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
13530 if (pci_enable_device_mem(pdev)) {
13531 printk(KERN_ERR "lpfc: Cannot re-enable "
13532 "PCI device after reset.\n");
13533 return PCI_ERS_RESULT_DISCONNECT;
13536 pci_restore_state(pdev);
13539 * As the new kernel behavior of pci_restore_state() API call clears
13540 * device saved_state flag, need to save the restored state again.
13542 pci_save_state(pdev);
13544 if (pdev->is_busmaster)
13545 pci_set_master(pdev);
13547 spin_lock_irq(&phba->hbalock);
13548 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
13549 spin_unlock_irq(&phba->hbalock);
13551 /* Configure and enable interrupt */
13552 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
13553 if (intr_mode == LPFC_INTR_ERROR) {
13554 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13555 "2824 Cannot re-enable interrupt after "
13557 return PCI_ERS_RESULT_DISCONNECT;
13559 phba->intr_mode = intr_mode;
13561 /* Log the current active interrupt mode */
13562 lpfc_log_intr_mode(phba, phba->intr_mode);
13564 return PCI_ERS_RESULT_RECOVERED;
13568 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
13569 * @pdev: pointer to PCI device
13571 * This routine is called from the PCI subsystem for error handling to device
13572 * with SLI-4 interface spec. It is called when kernel error recovery tells
13573 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
13574 * error recovery. After this call, traffic can start to flow from this device
13578 lpfc_io_resume_s4(struct pci_dev *pdev)
13580 struct Scsi_Host *shost = pci_get_drvdata(pdev);
13581 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13584 * In case of slot reset, as function reset is performed through
13585 * mailbox command which needs DMA to be enabled, this operation
13586 * has to be moved to the io resume phase. Taking device offline
13587 * will perform the necessary cleanup.
13589 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
13590 /* Perform device reset */
13591 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
13592 lpfc_offline(phba);
13593 lpfc_sli_brdrestart(phba);
13594 /* Bring the device back online */
13600 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
13601 * @pdev: pointer to PCI device
13602 * @pid: pointer to PCI device identifier
13604 * This routine is to be registered to the kernel's PCI subsystem. When an
13605 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
13606 * at PCI device-specific information of the device and driver to see if the
13607 * driver state that it can support this kind of device. If the match is
13608 * successful, the driver core invokes this routine. This routine dispatches
13609 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
13610 * do all the initialization that it needs to do to handle the HBA device
13614 * 0 - driver can claim the device
13615 * negative value - driver can not claim the device
13618 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
13621 struct lpfc_sli_intf intf;
13623 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
13626 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
13627 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
13628 rc = lpfc_pci_probe_one_s4(pdev, pid);
13630 rc = lpfc_pci_probe_one_s3(pdev, pid);
13636 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
13637 * @pdev: pointer to PCI device
13639 * This routine is to be registered to the kernel's PCI subsystem. When an
13640 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
13641 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
13642 * remove routine, which will perform all the necessary cleanup for the
13643 * device to be removed from the PCI subsystem properly.
13646 lpfc_pci_remove_one(struct pci_dev *pdev)
13648 struct Scsi_Host *shost = pci_get_drvdata(pdev);
13649 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13651 switch (phba->pci_dev_grp) {
13652 case LPFC_PCI_DEV_LP:
13653 lpfc_pci_remove_one_s3(pdev);
13655 case LPFC_PCI_DEV_OC:
13656 lpfc_pci_remove_one_s4(pdev);
13659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13660 "1424 Invalid PCI device group: 0x%x\n",
13661 phba->pci_dev_grp);
13668 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
13669 * @pdev: pointer to PCI device
13670 * @msg: power management message
13672 * This routine is to be registered to the kernel's PCI subsystem to support
13673 * system Power Management (PM). When PM invokes this method, it dispatches
13674 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
13675 * suspend the device.
13678 * 0 - driver suspended the device
13682 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
13684 struct Scsi_Host *shost = pci_get_drvdata(pdev);
13685 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13688 switch (phba->pci_dev_grp) {
13689 case LPFC_PCI_DEV_LP:
13690 rc = lpfc_pci_suspend_one_s3(pdev, msg);
13692 case LPFC_PCI_DEV_OC:
13693 rc = lpfc_pci_suspend_one_s4(pdev, msg);
13696 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13697 "1425 Invalid PCI device group: 0x%x\n",
13698 phba->pci_dev_grp);
13705 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
13706 * @pdev: pointer to PCI device
13708 * This routine is to be registered to the kernel's PCI subsystem to support
13709 * system Power Management (PM). When PM invokes this method, it dispatches
13710 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
13711 * resume the device.
13714 * 0 - driver suspended the device
13718 lpfc_pci_resume_one(struct pci_dev *pdev)
13720 struct Scsi_Host *shost = pci_get_drvdata(pdev);
13721 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13724 switch (phba->pci_dev_grp) {
13725 case LPFC_PCI_DEV_LP:
13726 rc = lpfc_pci_resume_one_s3(pdev);
13728 case LPFC_PCI_DEV_OC:
13729 rc = lpfc_pci_resume_one_s4(pdev);
13732 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13733 "1426 Invalid PCI device group: 0x%x\n",
13734 phba->pci_dev_grp);
13741 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
13742 * @pdev: pointer to PCI device.
13743 * @state: the current PCI connection state.
13745 * This routine is registered to the PCI subsystem for error handling. This
13746 * function is called by the PCI subsystem after a PCI bus error affecting
13747 * this device has been detected. When this routine is invoked, it dispatches
13748 * the action to the proper SLI-3 or SLI-4 device error detected handling
13749 * routine, which will perform the proper error detected operation.
13752 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
13753 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13755 static pci_ers_result_t
13756 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
13758 struct Scsi_Host *shost = pci_get_drvdata(pdev);
13759 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13760 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
13762 switch (phba->pci_dev_grp) {
13763 case LPFC_PCI_DEV_LP:
13764 rc = lpfc_io_error_detected_s3(pdev, state);
13766 case LPFC_PCI_DEV_OC:
13767 rc = lpfc_io_error_detected_s4(pdev, state);
13770 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13771 "1427 Invalid PCI device group: 0x%x\n",
13772 phba->pci_dev_grp);
13779 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
13780 * @pdev: pointer to PCI device.
13782 * This routine is registered to the PCI subsystem for error handling. This
13783 * function is called after PCI bus has been reset to restart the PCI card
13784 * from scratch, as if from a cold-boot. When this routine is invoked, it
13785 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
13786 * routine, which will perform the proper device reset.
13789 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
13790 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13792 static pci_ers_result_t
13793 lpfc_io_slot_reset(struct pci_dev *pdev)
13795 struct Scsi_Host *shost = pci_get_drvdata(pdev);
13796 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13797 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
13799 switch (phba->pci_dev_grp) {
13800 case LPFC_PCI_DEV_LP:
13801 rc = lpfc_io_slot_reset_s3(pdev);
13803 case LPFC_PCI_DEV_OC:
13804 rc = lpfc_io_slot_reset_s4(pdev);
13807 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13808 "1428 Invalid PCI device group: 0x%x\n",
13809 phba->pci_dev_grp);
13816 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
13817 * @pdev: pointer to PCI device
13819 * This routine is registered to the PCI subsystem for error handling. It
13820 * is called when kernel error recovery tells the lpfc driver that it is
13821 * OK to resume normal PCI operation after PCI bus error recovery. When
13822 * this routine is invoked, it dispatches the action to the proper SLI-3
13823 * or SLI-4 device io_resume routine, which will resume the device operation.
13826 lpfc_io_resume(struct pci_dev *pdev)
13828 struct Scsi_Host *shost = pci_get_drvdata(pdev);
13829 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13831 switch (phba->pci_dev_grp) {
13832 case LPFC_PCI_DEV_LP:
13833 lpfc_io_resume_s3(pdev);
13835 case LPFC_PCI_DEV_OC:
13836 lpfc_io_resume_s4(pdev);
13839 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13840 "1429 Invalid PCI device group: 0x%x\n",
13841 phba->pci_dev_grp);
13848 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
13849 * @phba: pointer to lpfc hba data structure.
13851 * This routine checks to see if OAS is supported for this adapter. If
13852 * supported, the configure Flash Optimized Fabric flag is set. Otherwise,
13853 * the enable oas flag is cleared and the pool created for OAS device data
13858 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
13861 if (!phba->cfg_EnableXLane)
13864 if (phba->sli4_hba.pc_sli4_params.oas_supported) {
13868 mempool_destroy(phba->device_data_mem_pool);
13869 phba->device_data_mem_pool = NULL;
13876 * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
13877 * @phba: pointer to lpfc hba data structure.
13879 * This routine checks to see if RAS is supported by the adapter. Check the
13880 * function through which RAS support enablement is to be done.
13883 lpfc_sli4_ras_init(struct lpfc_hba *phba)
13885 switch (phba->pcidev->device) {
13886 case PCI_DEVICE_ID_LANCER_G6_FC:
13887 case PCI_DEVICE_ID_LANCER_G7_FC:
13888 phba->ras_fwlog.ras_hwsupport = true;
13889 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
13890 phba->cfg_ras_fwlog_buffsize)
13891 phba->ras_fwlog.ras_enabled = true;
13893 phba->ras_fwlog.ras_enabled = false;
13896 phba->ras_fwlog.ras_hwsupport = false;
13901 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
13903 static const struct pci_error_handlers lpfc_err_handler = {
13904 .error_detected = lpfc_io_error_detected,
13905 .slot_reset = lpfc_io_slot_reset,
13906 .resume = lpfc_io_resume,
13909 static struct pci_driver lpfc_driver = {
13910 .name = LPFC_DRIVER_NAME,
13911 .id_table = lpfc_id_table,
13912 .probe = lpfc_pci_probe_one,
13913 .remove = lpfc_pci_remove_one,
13914 .shutdown = lpfc_pci_remove_one,
13915 .suspend = lpfc_pci_suspend_one,
13916 .resume = lpfc_pci_resume_one,
13917 .err_handler = &lpfc_err_handler,
13920 static const struct file_operations lpfc_mgmt_fop = {
13921 .owner = THIS_MODULE,
13924 static struct miscdevice lpfc_mgmt_dev = {
13925 .minor = MISC_DYNAMIC_MINOR,
13926 .name = "lpfcmgmt",
13927 .fops = &lpfc_mgmt_fop,
13931 * lpfc_init - lpfc module initialization routine
13933 * This routine is to be invoked when the lpfc module is loaded into the
13934 * kernel. The special kernel macro module_init() is used to indicate the
13935 * role of this routine to the kernel as lpfc module entry point.
13939 * -ENOMEM - FC attach transport failed
13940 * all others - failed
13947 printk(LPFC_MODULE_DESC "\n");
13948 printk(LPFC_COPYRIGHT "\n");
13950 error = misc_register(&lpfc_mgmt_dev);
13952 printk(KERN_ERR "Could not register lpfcmgmt device, "
13953 "misc_register returned with status %d", error);
13955 lpfc_transport_functions.vport_create = lpfc_vport_create;
13956 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
13957 lpfc_transport_template =
13958 fc_attach_transport(&lpfc_transport_functions);
13959 if (lpfc_transport_template == NULL)
13961 lpfc_vport_transport_template =
13962 fc_attach_transport(&lpfc_vport_transport_functions);
13963 if (lpfc_vport_transport_template == NULL) {
13964 fc_release_transport(lpfc_transport_template);
13967 lpfc_nvme_cmd_template();
13968 lpfc_nvmet_cmd_template();
13970 /* Initialize in case vector mapping is needed */
13971 lpfc_present_cpu = num_present_cpus();
13973 error = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN,
13974 "lpfc/sli4:online",
13975 lpfc_cpu_online, lpfc_cpu_offline);
13977 goto cpuhp_failure;
13978 lpfc_cpuhp_state = error;
13980 error = pci_register_driver(&lpfc_driver);
13987 cpuhp_remove_multi_state(lpfc_cpuhp_state);
13989 fc_release_transport(lpfc_transport_template);
13990 fc_release_transport(lpfc_vport_transport_template);
13996 * lpfc_exit - lpfc module removal routine
13998 * This routine is invoked when the lpfc module is removed from the kernel.
13999 * The special kernel macro module_exit() is used to indicate the role of
14000 * this routine to the kernel as lpfc module exit point.
14005 misc_deregister(&lpfc_mgmt_dev);
14006 pci_unregister_driver(&lpfc_driver);
14007 cpuhp_remove_multi_state(lpfc_cpuhp_state);
14008 fc_release_transport(lpfc_transport_template);
14009 fc_release_transport(lpfc_vport_transport_template);
14010 idr_destroy(&lpfc_hba_index);
14013 module_init(lpfc_init);
14014 module_exit(lpfc_exit);
14015 MODULE_LICENSE("GPL");
14016 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
14017 MODULE_AUTHOR("Broadcom");
14018 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);