1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2021 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
6 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
7 * EMULEX and SLI are trademarks of Emulex. *
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>
56 #include "lpfc_sli4.h"
58 #include "lpfc_disc.h"
60 #include "lpfc_scsi.h"
61 #include "lpfc_nvme.h"
62 #include "lpfc_logmsg.h"
63 #include "lpfc_crtn.h"
64 #include "lpfc_vport.h"
65 #include "lpfc_version.h"
68 static enum cpuhp_state lpfc_cpuhp_state;
69 /* Used when mapping IRQ vectors in a driver centric manner */
70 static uint32_t lpfc_present_cpu;
72 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba);
73 static void lpfc_cpuhp_remove(struct lpfc_hba *phba);
74 static void lpfc_cpuhp_add(struct lpfc_hba *phba);
75 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
76 static int lpfc_post_rcv_buf(struct lpfc_hba *);
77 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
78 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
79 static int lpfc_setup_endian_order(struct lpfc_hba *);
80 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
81 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
82 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
83 static void lpfc_init_sgl_list(struct lpfc_hba *);
84 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
85 static void lpfc_free_active_sgl(struct lpfc_hba *);
86 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
87 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
88 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
89 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
90 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
91 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
92 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
93 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
94 static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int);
95 static void lpfc_setup_bg(struct lpfc_hba *, struct Scsi_Host *);
97 static struct scsi_transport_template *lpfc_transport_template = NULL;
98 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
99 static DEFINE_IDR(lpfc_hba_index);
100 #define LPFC_NVMET_BUF_POST 254
103 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
104 * @phba: pointer to lpfc hba data structure.
106 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
107 * mailbox command. It retrieves the revision information from the HBA and
108 * collects the Vital Product Data (VPD) about the HBA for preparing the
109 * configuration of the HBA.
113 * -ERESTART - requests the SLI layer to reset the HBA and try again.
114 * Any other value - indicates an error.
117 lpfc_config_port_prep(struct lpfc_hba *phba)
119 lpfc_vpd_t *vp = &phba->vpd;
123 char *lpfc_vpd_data = NULL;
125 static char licensed[56] =
126 "key unlock for use with gnu public licensed code only\0";
127 static int init_key = 1;
129 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
131 phba->link_state = LPFC_HBA_ERROR;
136 phba->link_state = LPFC_INIT_MBX_CMDS;
138 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
140 uint32_t *ptext = (uint32_t *) licensed;
142 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
143 *ptext = cpu_to_be32(*ptext);
147 lpfc_read_nv(phba, pmb);
148 memset((char*)mb->un.varRDnvp.rsvd3, 0,
149 sizeof (mb->un.varRDnvp.rsvd3));
150 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
153 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
155 if (rc != MBX_SUCCESS) {
156 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
157 "0324 Config Port initialization "
158 "error, mbxCmd x%x READ_NVPARM, "
160 mb->mbxCommand, mb->mbxStatus);
161 mempool_free(pmb, phba->mbox_mem_pool);
164 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
166 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
171 * Clear all option bits except LPFC_SLI3_BG_ENABLED,
172 * which was already set in lpfc_get_cfgparam()
174 phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
176 /* Setup and issue mailbox READ REV command */
177 lpfc_read_rev(phba, pmb);
178 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
179 if (rc != MBX_SUCCESS) {
180 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
181 "0439 Adapter failed to init, mbxCmd x%x "
182 "READ_REV, mbxStatus x%x\n",
183 mb->mbxCommand, mb->mbxStatus);
184 mempool_free( pmb, phba->mbox_mem_pool);
190 * The value of rr must be 1 since the driver set the cv field to 1.
191 * This setting requires the FW to set all revision fields.
193 if (mb->un.varRdRev.rr == 0) {
195 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
196 "0440 Adapter failed to init, READ_REV has "
197 "missing revision information.\n");
198 mempool_free(pmb, phba->mbox_mem_pool);
202 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
203 mempool_free(pmb, phba->mbox_mem_pool);
207 /* Save information as VPD data */
209 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
210 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
211 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
212 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
213 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
214 vp->rev.biuRev = mb->un.varRdRev.biuRev;
215 vp->rev.smRev = mb->un.varRdRev.smRev;
216 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
217 vp->rev.endecRev = mb->un.varRdRev.endecRev;
218 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
219 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
220 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
221 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
222 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
223 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
225 /* If the sli feature level is less then 9, we must
226 * tear down all RPIs and VPIs on link down if NPIV
229 if (vp->rev.feaLevelHigh < 9)
230 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
232 if (lpfc_is_LC_HBA(phba->pcidev->device))
233 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
234 sizeof (phba->RandomData));
236 /* Get adapter VPD information */
237 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
241 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
242 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
244 if (rc != MBX_SUCCESS) {
245 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
246 "0441 VPD not present on adapter, "
247 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
248 mb->mbxCommand, mb->mbxStatus);
249 mb->un.varDmp.word_cnt = 0;
251 /* dump mem may return a zero when finished or we got a
252 * mailbox error, either way we are done.
254 if (mb->un.varDmp.word_cnt == 0)
257 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
258 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
259 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
260 lpfc_vpd_data + offset,
261 mb->un.varDmp.word_cnt);
262 offset += mb->un.varDmp.word_cnt;
263 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
265 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
267 kfree(lpfc_vpd_data);
269 mempool_free(pmb, phba->mbox_mem_pool);
274 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
275 * @phba: pointer to lpfc hba data structure.
276 * @pmboxq: pointer to the driver internal queue element for mailbox command.
278 * This is the completion handler for driver's configuring asynchronous event
279 * mailbox command to the device. If the mailbox command returns successfully,
280 * it will set internal async event support flag to 1; otherwise, it will
281 * set internal async event support flag to 0.
284 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
286 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
287 phba->temp_sensor_support = 1;
289 phba->temp_sensor_support = 0;
290 mempool_free(pmboxq, phba->mbox_mem_pool);
295 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
296 * @phba: pointer to lpfc hba data structure.
297 * @pmboxq: pointer to the driver internal queue element for mailbox command.
299 * This is the completion handler for dump mailbox command for getting
300 * wake up parameters. When this command complete, the response contain
301 * Option rom version of the HBA. This function translate the version number
302 * into a human readable string and store it in OptionROMVersion.
305 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
308 uint32_t prog_id_word;
310 /* character array used for decoding dist type. */
311 char dist_char[] = "nabx";
313 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
314 mempool_free(pmboxq, phba->mbox_mem_pool);
318 prg = (struct prog_id *) &prog_id_word;
320 /* word 7 contain option rom version */
321 prog_id_word = pmboxq->u.mb.un.varWords[7];
323 /* Decode the Option rom version word to a readable string */
325 dist = dist_char[prg->dist];
327 if ((prg->dist == 3) && (prg->num == 0))
328 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
329 prg->ver, prg->rev, prg->lev);
331 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
332 prg->ver, prg->rev, prg->lev,
334 mempool_free(pmboxq, phba->mbox_mem_pool);
339 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
340 * cfg_soft_wwnn, cfg_soft_wwpn
341 * @vport: pointer to lpfc vport data structure.
348 lpfc_update_vport_wwn(struct lpfc_vport *vport)
350 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
351 u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
353 /* If the soft name exists then update it using the service params */
354 if (vport->phba->cfg_soft_wwnn)
355 u64_to_wwn(vport->phba->cfg_soft_wwnn,
356 vport->fc_sparam.nodeName.u.wwn);
357 if (vport->phba->cfg_soft_wwpn)
358 u64_to_wwn(vport->phba->cfg_soft_wwpn,
359 vport->fc_sparam.portName.u.wwn);
362 * If the name is empty or there exists a soft name
363 * then copy the service params name, otherwise use the fc name
365 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
366 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
367 sizeof(struct lpfc_name));
369 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
370 sizeof(struct lpfc_name));
373 * If the port name has changed, then set the Param changes flag
376 if (vport->fc_portname.u.wwn[0] != 0 &&
377 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
378 sizeof(struct lpfc_name)))
379 vport->vport_flag |= FAWWPN_PARAM_CHG;
381 if (vport->fc_portname.u.wwn[0] == 0 ||
382 vport->phba->cfg_soft_wwpn ||
383 (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
384 vport->vport_flag & FAWWPN_SET) {
385 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
386 sizeof(struct lpfc_name));
387 vport->vport_flag &= ~FAWWPN_SET;
388 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
389 vport->vport_flag |= FAWWPN_SET;
392 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
393 sizeof(struct lpfc_name));
397 * lpfc_config_port_post - Perform lpfc initialization after config port
398 * @phba: pointer to lpfc hba data structure.
400 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
401 * command call. It performs all internal resource and state setups on the
402 * port: post IOCB buffers, enable appropriate host interrupt attentions,
403 * ELS ring timers, etc.
407 * Any other value - error.
410 lpfc_config_port_post(struct lpfc_hba *phba)
412 struct lpfc_vport *vport = phba->pport;
413 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
416 struct lpfc_dmabuf *mp;
417 struct lpfc_sli *psli = &phba->sli;
418 uint32_t status, timeout;
422 spin_lock_irq(&phba->hbalock);
424 * If the Config port completed correctly the HBA is not
425 * over heated any more.
427 if (phba->over_temp_state == HBA_OVER_TEMP)
428 phba->over_temp_state = HBA_NORMAL_TEMP;
429 spin_unlock_irq(&phba->hbalock);
431 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
433 phba->link_state = LPFC_HBA_ERROR;
438 /* Get login parameters for NID. */
439 rc = lpfc_read_sparam(phba, pmb, 0);
441 mempool_free(pmb, phba->mbox_mem_pool);
446 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
447 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
448 "0448 Adapter failed init, mbxCmd x%x "
449 "READ_SPARM mbxStatus x%x\n",
450 mb->mbxCommand, mb->mbxStatus);
451 phba->link_state = LPFC_HBA_ERROR;
452 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
453 mempool_free(pmb, phba->mbox_mem_pool);
454 lpfc_mbuf_free(phba, mp->virt, mp->phys);
459 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
461 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
462 lpfc_mbuf_free(phba, mp->virt, mp->phys);
465 lpfc_update_vport_wwn(vport);
467 /* Update the fc_host data structures with new wwn. */
468 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
469 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
470 fc_host_max_npiv_vports(shost) = phba->max_vpi;
472 /* If no serial number in VPD data, use low 6 bytes of WWNN */
473 /* This should be consolidated into parse_vpd ? - mr */
474 if (phba->SerialNumber[0] == 0) {
477 outptr = &vport->fc_nodename.u.s.IEEE[0];
478 for (i = 0; i < 12; i++) {
480 j = ((status & 0xf0) >> 4);
482 phba->SerialNumber[i] =
483 (char)((uint8_t) 0x30 + (uint8_t) j);
485 phba->SerialNumber[i] =
486 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
490 phba->SerialNumber[i] =
491 (char)((uint8_t) 0x30 + (uint8_t) j);
493 phba->SerialNumber[i] =
494 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
498 lpfc_read_config(phba, pmb);
500 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
501 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
502 "0453 Adapter failed to init, mbxCmd x%x "
503 "READ_CONFIG, mbxStatus x%x\n",
504 mb->mbxCommand, mb->mbxStatus);
505 phba->link_state = LPFC_HBA_ERROR;
506 mempool_free( pmb, phba->mbox_mem_pool);
510 /* Check if the port is disabled */
511 lpfc_sli_read_link_ste(phba);
513 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
514 if (phba->cfg_hba_queue_depth > mb->un.varRdConfig.max_xri) {
515 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
516 "3359 HBA queue depth changed from %d to %d\n",
517 phba->cfg_hba_queue_depth,
518 mb->un.varRdConfig.max_xri);
519 phba->cfg_hba_queue_depth = mb->un.varRdConfig.max_xri;
522 phba->lmt = mb->un.varRdConfig.lmt;
524 /* Get the default values for Model Name and Description */
525 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
527 phba->link_state = LPFC_LINK_DOWN;
529 /* Only process IOCBs on ELS ring till hba_state is READY */
530 if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
531 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
532 if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
533 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
535 /* Post receive buffers for desired rings */
536 if (phba->sli_rev != 3)
537 lpfc_post_rcv_buf(phba);
540 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
542 if (phba->intr_type == MSIX) {
543 rc = lpfc_config_msi(phba, pmb);
545 mempool_free(pmb, phba->mbox_mem_pool);
548 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
549 if (rc != MBX_SUCCESS) {
550 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
551 "0352 Config MSI mailbox command "
552 "failed, mbxCmd x%x, mbxStatus x%x\n",
553 pmb->u.mb.mbxCommand,
554 pmb->u.mb.mbxStatus);
555 mempool_free(pmb, phba->mbox_mem_pool);
560 spin_lock_irq(&phba->hbalock);
561 /* Initialize ERATT handling flag */
562 phba->hba_flag &= ~HBA_ERATT_HANDLED;
564 /* Enable appropriate host interrupts */
565 if (lpfc_readl(phba->HCregaddr, &status)) {
566 spin_unlock_irq(&phba->hbalock);
569 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
570 if (psli->num_rings > 0)
571 status |= HC_R0INT_ENA;
572 if (psli->num_rings > 1)
573 status |= HC_R1INT_ENA;
574 if (psli->num_rings > 2)
575 status |= HC_R2INT_ENA;
576 if (psli->num_rings > 3)
577 status |= HC_R3INT_ENA;
579 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
580 (phba->cfg_poll & DISABLE_FCP_RING_INT))
581 status &= ~(HC_R0INT_ENA);
583 writel(status, phba->HCregaddr);
584 readl(phba->HCregaddr); /* flush */
585 spin_unlock_irq(&phba->hbalock);
587 /* Set up ring-0 (ELS) timer */
588 timeout = phba->fc_ratov * 2;
589 mod_timer(&vport->els_tmofunc,
590 jiffies + msecs_to_jiffies(1000 * timeout));
591 /* Set up heart beat (HB) timer */
592 mod_timer(&phba->hb_tmofunc,
593 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
594 phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
595 phba->last_completion_time = jiffies;
596 /* Set up error attention (ERATT) polling timer */
597 mod_timer(&phba->eratt_poll,
598 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
600 if (phba->hba_flag & LINK_DISABLED) {
601 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
602 "2598 Adapter Link is disabled.\n");
603 lpfc_down_link(phba, pmb);
604 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
605 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
606 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
607 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
608 "2599 Adapter failed to issue DOWN_LINK"
609 " mbox command rc 0x%x\n", rc);
611 mempool_free(pmb, phba->mbox_mem_pool);
614 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
615 mempool_free(pmb, phba->mbox_mem_pool);
616 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
620 /* MBOX buffer will be freed in mbox compl */
621 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
623 phba->link_state = LPFC_HBA_ERROR;
627 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
628 pmb->mbox_cmpl = lpfc_config_async_cmpl;
629 pmb->vport = phba->pport;
630 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
632 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
633 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
634 "0456 Adapter failed to issue "
635 "ASYNCEVT_ENABLE mbox status x%x\n",
637 mempool_free(pmb, phba->mbox_mem_pool);
640 /* Get Option rom version */
641 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
643 phba->link_state = LPFC_HBA_ERROR;
647 lpfc_dump_wakeup_param(phba, pmb);
648 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
649 pmb->vport = phba->pport;
650 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
652 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
653 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
654 "0435 Adapter failed "
655 "to get Option ROM version status x%x\n", rc);
656 mempool_free(pmb, phba->mbox_mem_pool);
663 * lpfc_hba_init_link - Initialize the FC link
664 * @phba: pointer to lpfc hba data structure.
665 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
667 * This routine will issue the INIT_LINK mailbox command call.
668 * It is available to other drivers through the lpfc_hba data
669 * structure for use as a delayed link up mechanism with the
670 * module parameter lpfc_suppress_link_up.
674 * Any other value - error
677 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
679 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
683 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
684 * @phba: pointer to lpfc hba data structure.
685 * @fc_topology: desired fc topology.
686 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
688 * This routine will issue the INIT_LINK mailbox command call.
689 * It is available to other drivers through the lpfc_hba data
690 * structure for use as a delayed link up mechanism with the
691 * module parameter lpfc_suppress_link_up.
695 * Any other value - error
698 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
701 struct lpfc_vport *vport = phba->pport;
706 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
708 phba->link_state = LPFC_HBA_ERROR;
714 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
715 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
716 !(phba->lmt & LMT_1Gb)) ||
717 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
718 !(phba->lmt & LMT_2Gb)) ||
719 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
720 !(phba->lmt & LMT_4Gb)) ||
721 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
722 !(phba->lmt & LMT_8Gb)) ||
723 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
724 !(phba->lmt & LMT_10Gb)) ||
725 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
726 !(phba->lmt & LMT_16Gb)) ||
727 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
728 !(phba->lmt & LMT_32Gb)) ||
729 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
730 !(phba->lmt & LMT_64Gb))) {
731 /* Reset link speed to auto */
732 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
733 "1302 Invalid speed for this board:%d "
734 "Reset link speed to auto.\n",
735 phba->cfg_link_speed);
736 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
738 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
739 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
740 if (phba->sli_rev < LPFC_SLI_REV4)
741 lpfc_set_loopback_flag(phba);
742 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
743 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
744 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
745 "0498 Adapter failed to init, mbxCmd x%x "
746 "INIT_LINK, mbxStatus x%x\n",
747 mb->mbxCommand, mb->mbxStatus);
748 if (phba->sli_rev <= LPFC_SLI_REV3) {
749 /* Clear all interrupt enable conditions */
750 writel(0, phba->HCregaddr);
751 readl(phba->HCregaddr); /* flush */
752 /* Clear all pending interrupts */
753 writel(0xffffffff, phba->HAregaddr);
754 readl(phba->HAregaddr); /* flush */
756 phba->link_state = LPFC_HBA_ERROR;
757 if (rc != MBX_BUSY || flag == MBX_POLL)
758 mempool_free(pmb, phba->mbox_mem_pool);
761 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
762 if (flag == MBX_POLL)
763 mempool_free(pmb, phba->mbox_mem_pool);
769 * lpfc_hba_down_link - this routine downs the FC link
770 * @phba: pointer to lpfc hba data structure.
771 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
773 * This routine will issue the DOWN_LINK mailbox command call.
774 * It is available to other drivers through the lpfc_hba data
775 * structure for use to stop the link.
779 * Any other value - error
782 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
787 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
789 phba->link_state = LPFC_HBA_ERROR;
793 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
794 "0491 Adapter Link is disabled.\n");
795 lpfc_down_link(phba, pmb);
796 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
797 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
798 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
799 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
800 "2522 Adapter failed to issue DOWN_LINK"
801 " mbox command rc 0x%x\n", rc);
803 mempool_free(pmb, phba->mbox_mem_pool);
806 if (flag == MBX_POLL)
807 mempool_free(pmb, phba->mbox_mem_pool);
813 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
814 * @phba: pointer to lpfc HBA data structure.
816 * This routine will do LPFC uninitialization before the HBA is reset when
817 * bringing down the SLI Layer.
821 * Any other value - error.
824 lpfc_hba_down_prep(struct lpfc_hba *phba)
826 struct lpfc_vport **vports;
829 if (phba->sli_rev <= LPFC_SLI_REV3) {
830 /* Disable interrupts */
831 writel(0, phba->HCregaddr);
832 readl(phba->HCregaddr); /* flush */
835 if (phba->pport->load_flag & FC_UNLOADING)
836 lpfc_cleanup_discovery_resources(phba->pport);
838 vports = lpfc_create_vport_work_array(phba);
840 for (i = 0; i <= phba->max_vports &&
841 vports[i] != NULL; i++)
842 lpfc_cleanup_discovery_resources(vports[i]);
843 lpfc_destroy_vport_work_array(phba, vports);
849 * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
850 * rspiocb which got deferred
852 * @phba: pointer to lpfc HBA data structure.
854 * This routine will cleanup completed slow path events after HBA is reset
855 * when bringing down the SLI Layer.
862 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
864 struct lpfc_iocbq *rspiocbq;
865 struct hbq_dmabuf *dmabuf;
866 struct lpfc_cq_event *cq_event;
868 spin_lock_irq(&phba->hbalock);
869 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
870 spin_unlock_irq(&phba->hbalock);
872 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
873 /* Get the response iocb from the head of work queue */
874 spin_lock_irq(&phba->hbalock);
875 list_remove_head(&phba->sli4_hba.sp_queue_event,
876 cq_event, struct lpfc_cq_event, list);
877 spin_unlock_irq(&phba->hbalock);
879 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
880 case CQE_CODE_COMPL_WQE:
881 rspiocbq = container_of(cq_event, struct lpfc_iocbq,
883 lpfc_sli_release_iocbq(phba, rspiocbq);
885 case CQE_CODE_RECEIVE:
886 case CQE_CODE_RECEIVE_V1:
887 dmabuf = container_of(cq_event, struct hbq_dmabuf,
889 lpfc_in_buf_free(phba, &dmabuf->dbuf);
895 * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
896 * @phba: pointer to lpfc HBA data structure.
898 * This routine will cleanup posted ELS buffers after the HBA is reset
899 * when bringing down the SLI Layer.
906 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
908 struct lpfc_sli *psli = &phba->sli;
909 struct lpfc_sli_ring *pring;
910 struct lpfc_dmabuf *mp, *next_mp;
914 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
915 lpfc_sli_hbqbuf_free_all(phba);
917 /* Cleanup preposted buffers on the ELS ring */
918 pring = &psli->sli3_ring[LPFC_ELS_RING];
919 spin_lock_irq(&phba->hbalock);
920 list_splice_init(&pring->postbufq, &buflist);
921 spin_unlock_irq(&phba->hbalock);
924 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
927 lpfc_mbuf_free(phba, mp->virt, mp->phys);
931 spin_lock_irq(&phba->hbalock);
932 pring->postbufq_cnt -= count;
933 spin_unlock_irq(&phba->hbalock);
938 * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
939 * @phba: pointer to lpfc HBA data structure.
941 * This routine will cleanup the txcmplq after the HBA is reset when bringing
942 * down the SLI Layer.
948 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
950 struct lpfc_sli *psli = &phba->sli;
951 struct lpfc_queue *qp = NULL;
952 struct lpfc_sli_ring *pring;
953 LIST_HEAD(completions);
955 struct lpfc_iocbq *piocb, *next_iocb;
957 if (phba->sli_rev != LPFC_SLI_REV4) {
958 for (i = 0; i < psli->num_rings; i++) {
959 pring = &psli->sli3_ring[i];
960 spin_lock_irq(&phba->hbalock);
961 /* At this point in time the HBA is either reset or DOA
962 * Nothing should be on txcmplq as it will
965 list_splice_init(&pring->txcmplq, &completions);
966 pring->txcmplq_cnt = 0;
967 spin_unlock_irq(&phba->hbalock);
969 lpfc_sli_abort_iocb_ring(phba, pring);
971 /* Cancel all the IOCBs from the completions list */
972 lpfc_sli_cancel_iocbs(phba, &completions,
973 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
976 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
980 spin_lock_irq(&pring->ring_lock);
981 list_for_each_entry_safe(piocb, next_iocb,
982 &pring->txcmplq, list)
983 piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
984 list_splice_init(&pring->txcmplq, &completions);
985 pring->txcmplq_cnt = 0;
986 spin_unlock_irq(&pring->ring_lock);
987 lpfc_sli_abort_iocb_ring(phba, pring);
989 /* Cancel all the IOCBs from the completions list */
990 lpfc_sli_cancel_iocbs(phba, &completions,
991 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
995 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
996 * @phba: pointer to lpfc HBA data structure.
998 * This routine will do uninitialization after the HBA is reset when bring
999 * down the SLI Layer.
1003 * Any other value - error.
1006 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1008 lpfc_hba_free_post_buf(phba);
1009 lpfc_hba_clean_txcmplq(phba);
1014 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1015 * @phba: pointer to lpfc HBA data structure.
1017 * This routine will do uninitialization after the HBA is reset when bring
1018 * down the SLI Layer.
1022 * Any other value - error.
1025 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1027 struct lpfc_io_buf *psb, *psb_next;
1028 struct lpfc_async_xchg_ctx *ctxp, *ctxp_next;
1029 struct lpfc_sli4_hdw_queue *qp;
1031 LIST_HEAD(nvme_aborts);
1032 LIST_HEAD(nvmet_aborts);
1033 struct lpfc_sglq *sglq_entry = NULL;
1037 lpfc_sli_hbqbuf_free_all(phba);
1038 lpfc_hba_clean_txcmplq(phba);
1040 /* At this point in time the HBA is either reset or DOA. Either
1041 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1042 * on the lpfc_els_sgl_list so that it can either be freed if the
1043 * driver is unloading or reposted if the driver is restarting
1047 /* sgl_list_lock required because worker thread uses this
1050 spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
1051 list_for_each_entry(sglq_entry,
1052 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1053 sglq_entry->state = SGL_FREED;
1055 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1056 &phba->sli4_hba.lpfc_els_sgl_list);
1059 spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
1061 /* abts_xxxx_buf_list_lock required because worker thread uses this
1064 spin_lock_irq(&phba->hbalock);
1066 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
1067 qp = &phba->sli4_hba.hdwq[idx];
1069 spin_lock(&qp->abts_io_buf_list_lock);
1070 list_splice_init(&qp->lpfc_abts_io_buf_list,
1073 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1075 psb->status = IOSTAT_SUCCESS;
1078 spin_lock(&qp->io_buf_list_put_lock);
1079 list_splice_init(&aborts, &qp->lpfc_io_buf_list_put);
1080 qp->put_io_bufs += qp->abts_scsi_io_bufs;
1081 qp->put_io_bufs += qp->abts_nvme_io_bufs;
1082 qp->abts_scsi_io_bufs = 0;
1083 qp->abts_nvme_io_bufs = 0;
1084 spin_unlock(&qp->io_buf_list_put_lock);
1085 spin_unlock(&qp->abts_io_buf_list_lock);
1087 spin_unlock_irq(&phba->hbalock);
1089 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1090 spin_lock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1091 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1093 spin_unlock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1094 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1095 ctxp->flag &= ~(LPFC_NVME_XBUSY | LPFC_NVME_ABORT_OP);
1096 lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1100 lpfc_sli4_free_sp_events(phba);
1105 * lpfc_hba_down_post - Wrapper func for hba down post routine
1106 * @phba: pointer to lpfc HBA data structure.
1108 * This routine wraps the actual SLI3 or SLI4 routine for performing
1109 * uninitialization after the HBA is reset when bring down the SLI Layer.
1113 * Any other value - error.
1116 lpfc_hba_down_post(struct lpfc_hba *phba)
1118 return (*phba->lpfc_hba_down_post)(phba);
1122 * lpfc_hb_timeout - The HBA-timer timeout handler
1123 * @t: timer context used to obtain the pointer to lpfc hba data structure.
1125 * This is the HBA-timer timeout handler registered to the lpfc driver. When
1126 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1127 * work-port-events bitmap and the worker thread is notified. This timeout
1128 * event will be used by the worker thread to invoke the actual timeout
1129 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1130 * be performed in the timeout handler and the HBA timeout event bit shall
1131 * be cleared by the worker thread after it has taken the event bitmap out.
1134 lpfc_hb_timeout(struct timer_list *t)
1136 struct lpfc_hba *phba;
1137 uint32_t tmo_posted;
1138 unsigned long iflag;
1140 phba = from_timer(phba, t, hb_tmofunc);
1142 /* Check for heart beat timeout conditions */
1143 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1144 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1146 phba->pport->work_port_events |= WORKER_HB_TMO;
1147 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1149 /* Tell the worker thread there is work to do */
1151 lpfc_worker_wake_up(phba);
1156 * lpfc_rrq_timeout - The RRQ-timer timeout handler
1157 * @t: timer context used to obtain the pointer to lpfc hba data structure.
1159 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1160 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1161 * work-port-events bitmap and the worker thread is notified. This timeout
1162 * event will be used by the worker thread to invoke the actual timeout
1163 * handler routine, lpfc_rrq_handler. Any periodical operations will
1164 * be performed in the timeout handler and the RRQ timeout event bit shall
1165 * be cleared by the worker thread after it has taken the event bitmap out.
1168 lpfc_rrq_timeout(struct timer_list *t)
1170 struct lpfc_hba *phba;
1171 unsigned long iflag;
1173 phba = from_timer(phba, t, rrq_tmr);
1174 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1175 if (!(phba->pport->load_flag & FC_UNLOADING))
1176 phba->hba_flag |= HBA_RRQ_ACTIVE;
1178 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1179 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1181 if (!(phba->pport->load_flag & FC_UNLOADING))
1182 lpfc_worker_wake_up(phba);
1186 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1187 * @phba: pointer to lpfc hba data structure.
1188 * @pmboxq: pointer to the driver internal queue element for mailbox command.
1190 * This is the callback function to the lpfc heart-beat mailbox command.
1191 * If configured, the lpfc driver issues the heart-beat mailbox command to
1192 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1193 * heart-beat mailbox command is issued, the driver shall set up heart-beat
1194 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1195 * heart-beat outstanding state. Once the mailbox command comes back and
1196 * no error conditions detected, the heart-beat mailbox command timer is
1197 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1198 * state is cleared for the next heart-beat. If the timer expired with the
1199 * heart-beat outstanding state set, the driver will put the HBA offline.
1202 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1204 unsigned long drvr_flag;
1206 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1207 phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
1208 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1210 /* Check and reset heart-beat timer if necessary */
1211 mempool_free(pmboxq, phba->mbox_mem_pool);
1212 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1213 !(phba->link_state == LPFC_HBA_ERROR) &&
1214 !(phba->pport->load_flag & FC_UNLOADING))
1215 mod_timer(&phba->hb_tmofunc,
1217 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1222 * lpfc_idle_stat_delay_work - idle_stat tracking
1224 * This routine tracks per-cq idle_stat and determines polling decisions.
1230 lpfc_idle_stat_delay_work(struct work_struct *work)
1232 struct lpfc_hba *phba = container_of(to_delayed_work(work),
1234 idle_stat_delay_work);
1235 struct lpfc_queue *cq;
1236 struct lpfc_sli4_hdw_queue *hdwq;
1237 struct lpfc_idle_stat *idle_stat;
1238 u32 i, idle_percent;
1239 u64 wall, wall_idle, diff_wall, diff_idle, busy_time;
1241 if (phba->pport->load_flag & FC_UNLOADING)
1244 if (phba->link_state == LPFC_HBA_ERROR ||
1245 phba->pport->fc_flag & FC_OFFLINE_MODE)
1248 for_each_present_cpu(i) {
1249 hdwq = &phba->sli4_hba.hdwq[phba->sli4_hba.cpu_map[i].hdwq];
1252 /* Skip if we've already handled this cq's primary CPU */
1256 idle_stat = &phba->sli4_hba.idle_stat[i];
1258 /* get_cpu_idle_time returns values as running counters. Thus,
1259 * to know the amount for this period, the prior counter values
1260 * need to be subtracted from the current counter values.
1261 * From there, the idle time stat can be calculated as a
1262 * percentage of 100 - the sum of the other consumption times.
1264 wall_idle = get_cpu_idle_time(i, &wall, 1);
1265 diff_idle = wall_idle - idle_stat->prev_idle;
1266 diff_wall = wall - idle_stat->prev_wall;
1268 if (diff_wall <= diff_idle)
1271 busy_time = diff_wall - diff_idle;
1273 idle_percent = div64_u64(100 * busy_time, diff_wall);
1274 idle_percent = 100 - idle_percent;
1276 if (idle_percent < 15)
1277 cq->poll_mode = LPFC_QUEUE_WORK;
1279 cq->poll_mode = LPFC_IRQ_POLL;
1281 idle_stat->prev_idle = wall_idle;
1282 idle_stat->prev_wall = wall;
1286 schedule_delayed_work(&phba->idle_stat_delay_work,
1287 msecs_to_jiffies(LPFC_IDLE_STAT_DELAY));
1291 lpfc_hb_eq_delay_work(struct work_struct *work)
1293 struct lpfc_hba *phba = container_of(to_delayed_work(work),
1294 struct lpfc_hba, eq_delay_work);
1295 struct lpfc_eq_intr_info *eqi, *eqi_new;
1296 struct lpfc_queue *eq, *eq_next;
1297 unsigned char *ena_delay = NULL;
1301 if (!phba->cfg_auto_imax || phba->pport->load_flag & FC_UNLOADING)
1304 if (phba->link_state == LPFC_HBA_ERROR ||
1305 phba->pport->fc_flag & FC_OFFLINE_MODE)
1308 ena_delay = kcalloc(phba->sli4_hba.num_possible_cpu, sizeof(*ena_delay),
1313 for (i = 0; i < phba->cfg_irq_chann; i++) {
1314 /* Get the EQ corresponding to the IRQ vector */
1315 eq = phba->sli4_hba.hba_eq_hdl[i].eq;
1318 if (eq->q_mode || eq->q_flag & HBA_EQ_DELAY_CHK) {
1319 eq->q_flag &= ~HBA_EQ_DELAY_CHK;
1320 ena_delay[eq->last_cpu] = 1;
1324 for_each_present_cpu(i) {
1325 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
1327 usdelay = (eqi->icnt >> 10) * LPFC_EQ_DELAY_STEP;
1328 if (usdelay > LPFC_MAX_AUTO_EQ_DELAY)
1329 usdelay = LPFC_MAX_AUTO_EQ_DELAY;
1336 list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) {
1337 if (unlikely(eq->last_cpu != i)) {
1338 eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info,
1340 list_move_tail(&eq->cpu_list, &eqi_new->list);
1343 if (usdelay != eq->q_mode)
1344 lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1,
1352 queue_delayed_work(phba->wq, &phba->eq_delay_work,
1353 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
1357 * lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution
1358 * @phba: pointer to lpfc hba data structure.
1360 * For each heartbeat, this routine does some heuristic methods to adjust
1361 * XRI distribution. The goal is to fully utilize free XRIs.
1363 static void lpfc_hb_mxp_handler(struct lpfc_hba *phba)
1368 hwq_count = phba->cfg_hdw_queue;
1369 for (i = 0; i < hwq_count; i++) {
1370 /* Adjust XRIs in private pool */
1371 lpfc_adjust_pvt_pool_count(phba, i);
1373 /* Adjust high watermark */
1374 lpfc_adjust_high_watermark(phba, i);
1376 #ifdef LPFC_MXP_STAT
1377 /* Snapshot pbl, pvt and busy count */
1378 lpfc_snapshot_mxp(phba, i);
1384 * lpfc_issue_hb_mbox - Issues heart-beat mailbox command
1385 * @phba: pointer to lpfc hba data structure.
1387 * If a HB mbox is not already in progrees, this routine will allocate
1388 * a LPFC_MBOXQ_t, populate it with a MBX_HEARTBEAT (0x31) command,
1389 * and issue it. The HBA_HBEAT_INP flag means the command is in progress.
1392 lpfc_issue_hb_mbox(struct lpfc_hba *phba)
1394 LPFC_MBOXQ_t *pmboxq;
1397 /* Is a Heartbeat mbox already in progress */
1398 if (phba->hba_flag & HBA_HBEAT_INP)
1401 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1405 lpfc_heart_beat(phba, pmboxq);
1406 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1407 pmboxq->vport = phba->pport;
1408 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
1410 if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
1411 mempool_free(pmboxq, phba->mbox_mem_pool);
1414 phba->hba_flag |= HBA_HBEAT_INP;
1420 * lpfc_issue_hb_tmo - Signals heartbeat timer to issue mbox command
1421 * @phba: pointer to lpfc hba data structure.
1423 * The heartbeat timer (every 5 sec) will fire. If the HBA_HBEAT_TMO
1424 * flag is set, it will force a MBX_HEARTBEAT mbox command, regardless
1425 * of the value of lpfc_enable_hba_heartbeat.
1426 * If lpfc_enable_hba_heartbeat is set, the timeout routine will always
1427 * try to issue a MBX_HEARTBEAT mbox command.
1430 lpfc_issue_hb_tmo(struct lpfc_hba *phba)
1432 if (phba->cfg_enable_hba_heartbeat)
1434 phba->hba_flag |= HBA_HBEAT_TMO;
1438 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1439 * @phba: pointer to lpfc hba data structure.
1441 * This is the actual HBA-timer timeout handler to be invoked by the worker
1442 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1443 * handler performs any periodic operations needed for the device. If such
1444 * periodic event has already been attended to either in the interrupt handler
1445 * or by processing slow-ring or fast-ring events within the HBA-timer
1446 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1447 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1448 * is configured and there is no heart-beat mailbox command outstanding, a
1449 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1450 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1454 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1456 struct lpfc_vport **vports;
1457 struct lpfc_dmabuf *buf_ptr;
1460 struct lpfc_sli *psli = &phba->sli;
1461 LIST_HEAD(completions);
1463 if (phba->cfg_xri_rebalancing) {
1464 /* Multi-XRI pools handler */
1465 lpfc_hb_mxp_handler(phba);
1468 vports = lpfc_create_vport_work_array(phba);
1470 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1471 lpfc_rcv_seq_check_edtov(vports[i]);
1472 lpfc_fdmi_change_check(vports[i]);
1474 lpfc_destroy_vport_work_array(phba, vports);
1476 if ((phba->link_state == LPFC_HBA_ERROR) ||
1477 (phba->pport->load_flag & FC_UNLOADING) ||
1478 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1481 if (phba->elsbuf_cnt &&
1482 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1483 spin_lock_irq(&phba->hbalock);
1484 list_splice_init(&phba->elsbuf, &completions);
1485 phba->elsbuf_cnt = 0;
1486 phba->elsbuf_prev_cnt = 0;
1487 spin_unlock_irq(&phba->hbalock);
1489 while (!list_empty(&completions)) {
1490 list_remove_head(&completions, buf_ptr,
1491 struct lpfc_dmabuf, list);
1492 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1496 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1498 /* If there is no heart beat outstanding, issue a heartbeat command */
1499 if (phba->cfg_enable_hba_heartbeat) {
1500 /* If IOs are completing, no need to issue a MBX_HEARTBEAT */
1501 spin_lock_irq(&phba->pport->work_port_lock);
1502 if (time_after(phba->last_completion_time +
1503 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1505 spin_unlock_irq(&phba->pport->work_port_lock);
1506 if (phba->hba_flag & HBA_HBEAT_INP)
1507 tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1509 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1512 spin_unlock_irq(&phba->pport->work_port_lock);
1514 /* Check if a MBX_HEARTBEAT is already in progress */
1515 if (phba->hba_flag & HBA_HBEAT_INP) {
1517 * If heart beat timeout called with HBA_HBEAT_INP set
1518 * we need to give the hb mailbox cmd a chance to
1521 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1522 "0459 Adapter heartbeat still outstanding: "
1523 "last compl time was %d ms.\n",
1524 jiffies_to_msecs(jiffies
1525 - phba->last_completion_time));
1526 tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1528 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1529 (list_empty(&psli->mboxq))) {
1531 retval = lpfc_issue_hb_mbox(phba);
1533 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1536 phba->skipped_hb = 0;
1537 } else if (time_before_eq(phba->last_completion_time,
1538 phba->skipped_hb)) {
1539 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1540 "2857 Last completion time not "
1541 " updated in %d ms\n",
1542 jiffies_to_msecs(jiffies
1543 - phba->last_completion_time));
1545 phba->skipped_hb = jiffies;
1547 tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1551 /* Check to see if we want to force a MBX_HEARTBEAT */
1552 if (phba->hba_flag & HBA_HBEAT_TMO) {
1553 retval = lpfc_issue_hb_mbox(phba);
1555 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1557 tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1560 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1563 mod_timer(&phba->hb_tmofunc, jiffies + msecs_to_jiffies(tmo));
1567 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1568 * @phba: pointer to lpfc hba data structure.
1570 * This routine is called to bring the HBA offline when HBA hardware error
1571 * other than Port Error 6 has been detected.
1574 lpfc_offline_eratt(struct lpfc_hba *phba)
1576 struct lpfc_sli *psli = &phba->sli;
1578 spin_lock_irq(&phba->hbalock);
1579 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1580 spin_unlock_irq(&phba->hbalock);
1581 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1584 lpfc_reset_barrier(phba);
1585 spin_lock_irq(&phba->hbalock);
1586 lpfc_sli_brdreset(phba);
1587 spin_unlock_irq(&phba->hbalock);
1588 lpfc_hba_down_post(phba);
1589 lpfc_sli_brdready(phba, HS_MBRDY);
1590 lpfc_unblock_mgmt_io(phba);
1591 phba->link_state = LPFC_HBA_ERROR;
1596 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1597 * @phba: pointer to lpfc hba data structure.
1599 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1600 * other than Port Error 6 has been detected.
1603 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1605 spin_lock_irq(&phba->hbalock);
1606 phba->link_state = LPFC_HBA_ERROR;
1607 spin_unlock_irq(&phba->hbalock);
1609 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1610 lpfc_sli_flush_io_rings(phba);
1612 lpfc_hba_down_post(phba);
1613 lpfc_unblock_mgmt_io(phba);
1617 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1618 * @phba: pointer to lpfc hba data structure.
1620 * This routine is invoked to handle the deferred HBA hardware error
1621 * conditions. This type of error is indicated by HBA by setting ER1
1622 * and another ER bit in the host status register. The driver will
1623 * wait until the ER1 bit clears before handling the error condition.
1626 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1628 uint32_t old_host_status = phba->work_hs;
1629 struct lpfc_sli *psli = &phba->sli;
1631 /* If the pci channel is offline, ignore possible errors,
1632 * since we cannot communicate with the pci card anyway.
1634 if (pci_channel_offline(phba->pcidev)) {
1635 spin_lock_irq(&phba->hbalock);
1636 phba->hba_flag &= ~DEFER_ERATT;
1637 spin_unlock_irq(&phba->hbalock);
1641 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1642 "0479 Deferred Adapter Hardware Error "
1643 "Data: x%x x%x x%x\n",
1644 phba->work_hs, phba->work_status[0],
1645 phba->work_status[1]);
1647 spin_lock_irq(&phba->hbalock);
1648 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1649 spin_unlock_irq(&phba->hbalock);
1653 * Firmware stops when it triggred erratt. That could cause the I/Os
1654 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1655 * SCSI layer retry it after re-establishing link.
1657 lpfc_sli_abort_fcp_rings(phba);
1660 * There was a firmware error. Take the hba offline and then
1661 * attempt to restart it.
1663 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1666 /* Wait for the ER1 bit to clear.*/
1667 while (phba->work_hs & HS_FFER1) {
1669 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1670 phba->work_hs = UNPLUG_ERR ;
1673 /* If driver is unloading let the worker thread continue */
1674 if (phba->pport->load_flag & FC_UNLOADING) {
1681 * This is to ptrotect against a race condition in which
1682 * first write to the host attention register clear the
1683 * host status register.
1685 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1686 phba->work_hs = old_host_status & ~HS_FFER1;
1688 spin_lock_irq(&phba->hbalock);
1689 phba->hba_flag &= ~DEFER_ERATT;
1690 spin_unlock_irq(&phba->hbalock);
1691 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1692 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1696 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1698 struct lpfc_board_event_header board_event;
1699 struct Scsi_Host *shost;
1701 board_event.event_type = FC_REG_BOARD_EVENT;
1702 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1703 shost = lpfc_shost_from_vport(phba->pport);
1704 fc_host_post_vendor_event(shost, fc_get_event_number(),
1705 sizeof(board_event),
1706 (char *) &board_event,
1711 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1712 * @phba: pointer to lpfc hba data structure.
1714 * This routine is invoked to handle the following HBA hardware error
1716 * 1 - HBA error attention interrupt
1717 * 2 - DMA ring index out of range
1718 * 3 - Mailbox command came back as unknown
1721 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1723 struct lpfc_vport *vport = phba->pport;
1724 struct lpfc_sli *psli = &phba->sli;
1725 uint32_t event_data;
1726 unsigned long temperature;
1727 struct temp_event temp_event_data;
1728 struct Scsi_Host *shost;
1730 /* If the pci channel is offline, ignore possible errors,
1731 * since we cannot communicate with the pci card anyway.
1733 if (pci_channel_offline(phba->pcidev)) {
1734 spin_lock_irq(&phba->hbalock);
1735 phba->hba_flag &= ~DEFER_ERATT;
1736 spin_unlock_irq(&phba->hbalock);
1740 /* If resets are disabled then leave the HBA alone and return */
1741 if (!phba->cfg_enable_hba_reset)
1744 /* Send an internal error event to mgmt application */
1745 lpfc_board_errevt_to_mgmt(phba);
1747 if (phba->hba_flag & DEFER_ERATT)
1748 lpfc_handle_deferred_eratt(phba);
1750 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1751 if (phba->work_hs & HS_FFER6)
1752 /* Re-establishing Link */
1753 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1754 "1301 Re-establishing Link "
1755 "Data: x%x x%x x%x\n",
1756 phba->work_hs, phba->work_status[0],
1757 phba->work_status[1]);
1758 if (phba->work_hs & HS_FFER8)
1759 /* Device Zeroization */
1760 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1761 "2861 Host Authentication device "
1762 "zeroization Data:x%x x%x x%x\n",
1763 phba->work_hs, phba->work_status[0],
1764 phba->work_status[1]);
1766 spin_lock_irq(&phba->hbalock);
1767 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1768 spin_unlock_irq(&phba->hbalock);
1771 * Firmware stops when it triggled erratt with HS_FFER6.
1772 * That could cause the I/Os dropped by the firmware.
1773 * Error iocb (I/O) on txcmplq and let the SCSI layer
1774 * retry it after re-establishing link.
1776 lpfc_sli_abort_fcp_rings(phba);
1779 * There was a firmware error. Take the hba offline and then
1780 * attempt to restart it.
1782 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1784 lpfc_sli_brdrestart(phba);
1785 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1786 lpfc_unblock_mgmt_io(phba);
1789 lpfc_unblock_mgmt_io(phba);
1790 } else if (phba->work_hs & HS_CRIT_TEMP) {
1791 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1792 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1793 temp_event_data.event_code = LPFC_CRIT_TEMP;
1794 temp_event_data.data = (uint32_t)temperature;
1796 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1797 "0406 Adapter maximum temperature exceeded "
1798 "(%ld), taking this port offline "
1799 "Data: x%x x%x x%x\n",
1800 temperature, phba->work_hs,
1801 phba->work_status[0], phba->work_status[1]);
1803 shost = lpfc_shost_from_vport(phba->pport);
1804 fc_host_post_vendor_event(shost, fc_get_event_number(),
1805 sizeof(temp_event_data),
1806 (char *) &temp_event_data,
1807 SCSI_NL_VID_TYPE_PCI
1808 | PCI_VENDOR_ID_EMULEX);
1810 spin_lock_irq(&phba->hbalock);
1811 phba->over_temp_state = HBA_OVER_TEMP;
1812 spin_unlock_irq(&phba->hbalock);
1813 lpfc_offline_eratt(phba);
1816 /* The if clause above forces this code path when the status
1817 * failure is a value other than FFER6. Do not call the offline
1818 * twice. This is the adapter hardware error path.
1820 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1821 "0457 Adapter Hardware Error "
1822 "Data: x%x x%x x%x\n",
1824 phba->work_status[0], phba->work_status[1]);
1826 event_data = FC_REG_DUMP_EVENT;
1827 shost = lpfc_shost_from_vport(vport);
1828 fc_host_post_vendor_event(shost, fc_get_event_number(),
1829 sizeof(event_data), (char *) &event_data,
1830 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1832 lpfc_offline_eratt(phba);
1838 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1839 * @phba: pointer to lpfc hba data structure.
1840 * @mbx_action: flag for mailbox shutdown action.
1841 * @en_rn_msg: send reset/port recovery message.
1842 * This routine is invoked to perform an SLI4 port PCI function reset in
1843 * response to port status register polling attention. It waits for port
1844 * status register (ERR, RDY, RN) bits before proceeding with function reset.
1845 * During this process, interrupt vectors are freed and later requested
1846 * for handling possible port resource change.
1849 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1855 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1856 LPFC_SLI_INTF_IF_TYPE_2) {
1858 * On error status condition, driver need to wait for port
1859 * ready before performing reset.
1861 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1866 /* need reset: attempt for port recovery */
1868 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1869 "2887 Reset Needed: Attempting Port "
1872 /* If we are no wait, the HBA has been reset and is not
1873 * functional, thus we should clear LPFC_SLI_ACTIVE flag.
1875 if (mbx_action == LPFC_MBX_NO_WAIT) {
1876 spin_lock_irq(&phba->hbalock);
1877 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
1878 spin_unlock_irq(&phba->hbalock);
1881 lpfc_offline_prep(phba, mbx_action);
1882 lpfc_sli_flush_io_rings(phba);
1884 /* release interrupt for possible resource change */
1885 lpfc_sli4_disable_intr(phba);
1886 rc = lpfc_sli_brdrestart(phba);
1888 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1889 "6309 Failed to restart board\n");
1892 /* request and enable interrupt */
1893 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1894 if (intr_mode == LPFC_INTR_ERROR) {
1895 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1896 "3175 Failed to enable interrupt\n");
1899 phba->intr_mode = intr_mode;
1900 rc = lpfc_online(phba);
1902 lpfc_unblock_mgmt_io(phba);
1908 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1909 * @phba: pointer to lpfc hba data structure.
1911 * This routine is invoked to handle the SLI4 HBA hardware error attention
1915 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1917 struct lpfc_vport *vport = phba->pport;
1918 uint32_t event_data;
1919 struct Scsi_Host *shost;
1921 struct lpfc_register portstat_reg = {0};
1922 uint32_t reg_err1, reg_err2;
1923 uint32_t uerrlo_reg, uemasklo_reg;
1924 uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1925 bool en_rn_msg = true;
1926 struct temp_event temp_event_data;
1927 struct lpfc_register portsmphr_reg;
1930 /* If the pci channel is offline, ignore possible errors, since
1931 * we cannot communicate with the pci card anyway.
1933 if (pci_channel_offline(phba->pcidev)) {
1934 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1935 "3166 pci channel is offline\n");
1936 lpfc_sli4_offline_eratt(phba);
1940 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1941 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1943 case LPFC_SLI_INTF_IF_TYPE_0:
1944 pci_rd_rc1 = lpfc_readl(
1945 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1947 pci_rd_rc2 = lpfc_readl(
1948 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1950 /* consider PCI bus read error as pci_channel_offline */
1951 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1953 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1954 lpfc_sli4_offline_eratt(phba);
1957 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1958 "7623 Checking UE recoverable");
1960 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1961 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1962 &portsmphr_reg.word0))
1965 smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1967 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1968 LPFC_PORT_SEM_UE_RECOVERABLE)
1970 /*Sleep for 1Sec, before checking SEMAPHORE */
1974 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1975 "4827 smphr_port_status x%x : Waited %dSec",
1976 smphr_port_status, i);
1978 /* Recoverable UE, reset the HBA device */
1979 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1980 LPFC_PORT_SEM_UE_RECOVERABLE) {
1981 for (i = 0; i < 20; i++) {
1983 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1984 &portsmphr_reg.word0) &&
1985 (LPFC_POST_STAGE_PORT_READY ==
1986 bf_get(lpfc_port_smphr_port_status,
1988 rc = lpfc_sli4_port_sta_fn_reset(phba,
1989 LPFC_MBX_NO_WAIT, en_rn_msg);
1992 lpfc_printf_log(phba, KERN_ERR,
1994 "4215 Failed to recover UE");
1999 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2000 "7624 Firmware not ready: Failing UE recovery,"
2001 " waited %dSec", i);
2002 phba->link_state = LPFC_HBA_ERROR;
2005 case LPFC_SLI_INTF_IF_TYPE_2:
2006 case LPFC_SLI_INTF_IF_TYPE_6:
2007 pci_rd_rc1 = lpfc_readl(
2008 phba->sli4_hba.u.if_type2.STATUSregaddr,
2009 &portstat_reg.word0);
2010 /* consider PCI bus read error as pci_channel_offline */
2011 if (pci_rd_rc1 == -EIO) {
2012 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2013 "3151 PCI bus read access failure: x%x\n",
2014 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
2015 lpfc_sli4_offline_eratt(phba);
2018 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
2019 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
2020 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
2021 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2022 "2889 Port Overtemperature event, "
2023 "taking port offline Data: x%x x%x\n",
2024 reg_err1, reg_err2);
2026 phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
2027 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
2028 temp_event_data.event_code = LPFC_CRIT_TEMP;
2029 temp_event_data.data = 0xFFFFFFFF;
2031 shost = lpfc_shost_from_vport(phba->pport);
2032 fc_host_post_vendor_event(shost, fc_get_event_number(),
2033 sizeof(temp_event_data),
2034 (char *)&temp_event_data,
2035 SCSI_NL_VID_TYPE_PCI
2036 | PCI_VENDOR_ID_EMULEX);
2038 spin_lock_irq(&phba->hbalock);
2039 phba->over_temp_state = HBA_OVER_TEMP;
2040 spin_unlock_irq(&phba->hbalock);
2041 lpfc_sli4_offline_eratt(phba);
2044 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2045 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
2046 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2047 "3143 Port Down: Firmware Update "
2050 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2051 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2052 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2053 "3144 Port Down: Debug Dump\n");
2054 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2055 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
2056 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2057 "3145 Port Down: Provisioning\n");
2059 /* If resets are disabled then leave the HBA alone and return */
2060 if (!phba->cfg_enable_hba_reset)
2063 /* Check port status register for function reset */
2064 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
2067 /* don't report event on forced debug dump */
2068 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2069 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2074 /* fall through for not able to recover */
2075 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2076 "3152 Unrecoverable error\n");
2077 phba->link_state = LPFC_HBA_ERROR;
2079 case LPFC_SLI_INTF_IF_TYPE_1:
2083 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2084 "3123 Report dump event to upper layer\n");
2085 /* Send an internal error event to mgmt application */
2086 lpfc_board_errevt_to_mgmt(phba);
2088 event_data = FC_REG_DUMP_EVENT;
2089 shost = lpfc_shost_from_vport(vport);
2090 fc_host_post_vendor_event(shost, fc_get_event_number(),
2091 sizeof(event_data), (char *) &event_data,
2092 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
2096 * lpfc_handle_eratt - Wrapper func for handling hba error attention
2097 * @phba: pointer to lpfc HBA data structure.
2099 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
2100 * routine from the API jump table function pointer from the lpfc_hba struct.
2104 * Any other value - error.
2107 lpfc_handle_eratt(struct lpfc_hba *phba)
2109 (*phba->lpfc_handle_eratt)(phba);
2113 * lpfc_handle_latt - The HBA link event handler
2114 * @phba: pointer to lpfc hba data structure.
2116 * This routine is invoked from the worker thread to handle a HBA host
2117 * attention link event. SLI3 only.
2120 lpfc_handle_latt(struct lpfc_hba *phba)
2122 struct lpfc_vport *vport = phba->pport;
2123 struct lpfc_sli *psli = &phba->sli;
2125 volatile uint32_t control;
2126 struct lpfc_dmabuf *mp;
2129 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2132 goto lpfc_handle_latt_err_exit;
2135 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2138 goto lpfc_handle_latt_free_pmb;
2141 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2144 goto lpfc_handle_latt_free_mp;
2147 /* Cleanup any outstanding ELS commands */
2148 lpfc_els_flush_all_cmd(phba);
2150 psli->slistat.link_event++;
2151 lpfc_read_topology(phba, pmb, mp);
2152 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2154 /* Block ELS IOCBs until we have processed this mbox command */
2155 phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2156 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2157 if (rc == MBX_NOT_FINISHED) {
2159 goto lpfc_handle_latt_free_mbuf;
2162 /* Clear Link Attention in HA REG */
2163 spin_lock_irq(&phba->hbalock);
2164 writel(HA_LATT, phba->HAregaddr);
2165 readl(phba->HAregaddr); /* flush */
2166 spin_unlock_irq(&phba->hbalock);
2170 lpfc_handle_latt_free_mbuf:
2171 phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2172 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2173 lpfc_handle_latt_free_mp:
2175 lpfc_handle_latt_free_pmb:
2176 mempool_free(pmb, phba->mbox_mem_pool);
2177 lpfc_handle_latt_err_exit:
2178 /* Enable Link attention interrupts */
2179 spin_lock_irq(&phba->hbalock);
2180 psli->sli_flag |= LPFC_PROCESS_LA;
2181 control = readl(phba->HCregaddr);
2182 control |= HC_LAINT_ENA;
2183 writel(control, phba->HCregaddr);
2184 readl(phba->HCregaddr); /* flush */
2186 /* Clear Link Attention in HA REG */
2187 writel(HA_LATT, phba->HAregaddr);
2188 readl(phba->HAregaddr); /* flush */
2189 spin_unlock_irq(&phba->hbalock);
2190 lpfc_linkdown(phba);
2191 phba->link_state = LPFC_HBA_ERROR;
2193 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2194 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2200 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2201 * @phba: pointer to lpfc hba data structure.
2202 * @vpd: pointer to the vital product data.
2203 * @len: length of the vital product data in bytes.
2205 * This routine parses the Vital Product Data (VPD). The VPD is treated as
2206 * an array of characters. In this routine, the ModelName, ProgramType, and
2207 * ModelDesc, etc. fields of the phba data structure will be populated.
2210 * 0 - pointer to the VPD passed in is NULL
2214 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2216 uint8_t lenlo, lenhi;
2226 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2227 "0455 Vital Product Data: x%x x%x x%x x%x\n",
2228 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2230 while (!finished && (index < (len - 4))) {
2231 switch (vpd[index]) {
2239 i = ((((unsigned short)lenhi) << 8) + lenlo);
2248 Length = ((((unsigned short)lenhi) << 8) + lenlo);
2249 if (Length > len - index)
2250 Length = len - index;
2251 while (Length > 0) {
2252 /* Look for Serial Number */
2253 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2260 phba->SerialNumber[j++] = vpd[index++];
2264 phba->SerialNumber[j] = 0;
2267 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2268 phba->vpd_flag |= VPD_MODEL_DESC;
2275 phba->ModelDesc[j++] = vpd[index++];
2279 phba->ModelDesc[j] = 0;
2282 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2283 phba->vpd_flag |= VPD_MODEL_NAME;
2290 phba->ModelName[j++] = vpd[index++];
2294 phba->ModelName[j] = 0;
2297 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2298 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2305 phba->ProgramType[j++] = vpd[index++];
2309 phba->ProgramType[j] = 0;
2312 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2313 phba->vpd_flag |= VPD_PORT;
2320 if ((phba->sli_rev == LPFC_SLI_REV4) &&
2321 (phba->sli4_hba.pport_name_sta ==
2322 LPFC_SLI4_PPNAME_GET)) {
2326 phba->Port[j++] = vpd[index++];
2330 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2331 (phba->sli4_hba.pport_name_sta ==
2332 LPFC_SLI4_PPNAME_NON))
2359 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2360 * @phba: pointer to lpfc hba data structure.
2361 * @mdp: pointer to the data structure to hold the derived model name.
2362 * @descp: pointer to the data structure to hold the derived description.
2364 * This routine retrieves HBA's description based on its registered PCI device
2365 * ID. The @descp passed into this function points to an array of 256 chars. It
2366 * shall be returned with the model name, maximum speed, and the host bus type.
2367 * The @mdp passed into this function points to an array of 80 chars. When the
2368 * function returns, the @mdp will be filled with the model name.
2371 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2374 uint16_t dev_id = phba->pcidev->device;
2377 int oneConnect = 0; /* default is not a oneConnect */
2382 } m = {"<Unknown>", "", ""};
2384 if (mdp && mdp[0] != '\0'
2385 && descp && descp[0] != '\0')
2388 if (phba->lmt & LMT_64Gb)
2390 else if (phba->lmt & LMT_32Gb)
2392 else if (phba->lmt & LMT_16Gb)
2394 else if (phba->lmt & LMT_10Gb)
2396 else if (phba->lmt & LMT_8Gb)
2398 else if (phba->lmt & LMT_4Gb)
2400 else if (phba->lmt & LMT_2Gb)
2402 else if (phba->lmt & LMT_1Gb)
2410 case PCI_DEVICE_ID_FIREFLY:
2411 m = (typeof(m)){"LP6000", "PCI",
2412 "Obsolete, Unsupported Fibre Channel Adapter"};
2414 case PCI_DEVICE_ID_SUPERFLY:
2415 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2416 m = (typeof(m)){"LP7000", "PCI", ""};
2418 m = (typeof(m)){"LP7000E", "PCI", ""};
2419 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2421 case PCI_DEVICE_ID_DRAGONFLY:
2422 m = (typeof(m)){"LP8000", "PCI",
2423 "Obsolete, Unsupported Fibre Channel Adapter"};
2425 case PCI_DEVICE_ID_CENTAUR:
2426 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2427 m = (typeof(m)){"LP9002", "PCI", ""};
2429 m = (typeof(m)){"LP9000", "PCI", ""};
2430 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2432 case PCI_DEVICE_ID_RFLY:
2433 m = (typeof(m)){"LP952", "PCI",
2434 "Obsolete, Unsupported Fibre Channel Adapter"};
2436 case PCI_DEVICE_ID_PEGASUS:
2437 m = (typeof(m)){"LP9802", "PCI-X",
2438 "Obsolete, Unsupported Fibre Channel Adapter"};
2440 case PCI_DEVICE_ID_THOR:
2441 m = (typeof(m)){"LP10000", "PCI-X",
2442 "Obsolete, Unsupported Fibre Channel Adapter"};
2444 case PCI_DEVICE_ID_VIPER:
2445 m = (typeof(m)){"LPX1000", "PCI-X",
2446 "Obsolete, Unsupported Fibre Channel Adapter"};
2448 case PCI_DEVICE_ID_PFLY:
2449 m = (typeof(m)){"LP982", "PCI-X",
2450 "Obsolete, Unsupported Fibre Channel Adapter"};
2452 case PCI_DEVICE_ID_TFLY:
2453 m = (typeof(m)){"LP1050", "PCI-X",
2454 "Obsolete, Unsupported Fibre Channel Adapter"};
2456 case PCI_DEVICE_ID_HELIOS:
2457 m = (typeof(m)){"LP11000", "PCI-X2",
2458 "Obsolete, Unsupported Fibre Channel Adapter"};
2460 case PCI_DEVICE_ID_HELIOS_SCSP:
2461 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2462 "Obsolete, Unsupported Fibre Channel Adapter"};
2464 case PCI_DEVICE_ID_HELIOS_DCSP:
2465 m = (typeof(m)){"LP11002-SP", "PCI-X2",
2466 "Obsolete, Unsupported Fibre Channel Adapter"};
2468 case PCI_DEVICE_ID_NEPTUNE:
2469 m = (typeof(m)){"LPe1000", "PCIe",
2470 "Obsolete, Unsupported Fibre Channel Adapter"};
2472 case PCI_DEVICE_ID_NEPTUNE_SCSP:
2473 m = (typeof(m)){"LPe1000-SP", "PCIe",
2474 "Obsolete, Unsupported Fibre Channel Adapter"};
2476 case PCI_DEVICE_ID_NEPTUNE_DCSP:
2477 m = (typeof(m)){"LPe1002-SP", "PCIe",
2478 "Obsolete, Unsupported Fibre Channel Adapter"};
2480 case PCI_DEVICE_ID_BMID:
2481 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2483 case PCI_DEVICE_ID_BSMB:
2484 m = (typeof(m)){"LP111", "PCI-X2",
2485 "Obsolete, Unsupported Fibre Channel Adapter"};
2487 case PCI_DEVICE_ID_ZEPHYR:
2488 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2490 case PCI_DEVICE_ID_ZEPHYR_SCSP:
2491 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2493 case PCI_DEVICE_ID_ZEPHYR_DCSP:
2494 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2497 case PCI_DEVICE_ID_ZMID:
2498 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2500 case PCI_DEVICE_ID_ZSMB:
2501 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2503 case PCI_DEVICE_ID_LP101:
2504 m = (typeof(m)){"LP101", "PCI-X",
2505 "Obsolete, Unsupported Fibre Channel Adapter"};
2507 case PCI_DEVICE_ID_LP10000S:
2508 m = (typeof(m)){"LP10000-S", "PCI",
2509 "Obsolete, Unsupported Fibre Channel Adapter"};
2511 case PCI_DEVICE_ID_LP11000S:
2512 m = (typeof(m)){"LP11000-S", "PCI-X2",
2513 "Obsolete, Unsupported Fibre Channel Adapter"};
2515 case PCI_DEVICE_ID_LPE11000S:
2516 m = (typeof(m)){"LPe11000-S", "PCIe",
2517 "Obsolete, Unsupported Fibre Channel Adapter"};
2519 case PCI_DEVICE_ID_SAT:
2520 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2522 case PCI_DEVICE_ID_SAT_MID:
2523 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2525 case PCI_DEVICE_ID_SAT_SMB:
2526 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2528 case PCI_DEVICE_ID_SAT_DCSP:
2529 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2531 case PCI_DEVICE_ID_SAT_SCSP:
2532 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2534 case PCI_DEVICE_ID_SAT_S:
2535 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2537 case PCI_DEVICE_ID_HORNET:
2538 m = (typeof(m)){"LP21000", "PCIe",
2539 "Obsolete, Unsupported FCoE Adapter"};
2542 case PCI_DEVICE_ID_PROTEUS_VF:
2543 m = (typeof(m)){"LPev12000", "PCIe IOV",
2544 "Obsolete, Unsupported Fibre Channel Adapter"};
2546 case PCI_DEVICE_ID_PROTEUS_PF:
2547 m = (typeof(m)){"LPev12000", "PCIe IOV",
2548 "Obsolete, Unsupported Fibre Channel Adapter"};
2550 case PCI_DEVICE_ID_PROTEUS_S:
2551 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2552 "Obsolete, Unsupported Fibre Channel Adapter"};
2554 case PCI_DEVICE_ID_TIGERSHARK:
2556 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2558 case PCI_DEVICE_ID_TOMCAT:
2560 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2562 case PCI_DEVICE_ID_FALCON:
2563 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2564 "EmulexSecure Fibre"};
2566 case PCI_DEVICE_ID_BALIUS:
2567 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2568 "Obsolete, Unsupported Fibre Channel Adapter"};
2570 case PCI_DEVICE_ID_LANCER_FC:
2571 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2573 case PCI_DEVICE_ID_LANCER_FC_VF:
2574 m = (typeof(m)){"LPe16000", "PCIe",
2575 "Obsolete, Unsupported Fibre Channel Adapter"};
2577 case PCI_DEVICE_ID_LANCER_FCOE:
2579 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2581 case PCI_DEVICE_ID_LANCER_FCOE_VF:
2583 m = (typeof(m)){"OCe15100", "PCIe",
2584 "Obsolete, Unsupported FCoE"};
2586 case PCI_DEVICE_ID_LANCER_G6_FC:
2587 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2589 case PCI_DEVICE_ID_LANCER_G7_FC:
2590 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2592 case PCI_DEVICE_ID_SKYHAWK:
2593 case PCI_DEVICE_ID_SKYHAWK_VF:
2595 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2598 m = (typeof(m)){"Unknown", "", ""};
2602 if (mdp && mdp[0] == '\0')
2603 snprintf(mdp, 79,"%s", m.name);
2605 * oneConnect hba requires special processing, they are all initiators
2606 * and we put the port number on the end
2608 if (descp && descp[0] == '\0') {
2610 snprintf(descp, 255,
2611 "Emulex OneConnect %s, %s Initiator %s",
2614 else if (max_speed == 0)
2615 snprintf(descp, 255,
2617 m.name, m.bus, m.function);
2619 snprintf(descp, 255,
2620 "Emulex %s %d%s %s %s",
2621 m.name, max_speed, (GE) ? "GE" : "Gb",
2627 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2628 * @phba: pointer to lpfc hba data structure.
2629 * @pring: pointer to a IOCB ring.
2630 * @cnt: the number of IOCBs to be posted to the IOCB ring.
2632 * This routine posts a given number of IOCBs with the associated DMA buffer
2633 * descriptors specified by the cnt argument to the given IOCB ring.
2636 * The number of IOCBs NOT able to be posted to the IOCB ring.
2639 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2642 struct lpfc_iocbq *iocb;
2643 struct lpfc_dmabuf *mp1, *mp2;
2645 cnt += pring->missbufcnt;
2647 /* While there are buffers to post */
2649 /* Allocate buffer for command iocb */
2650 iocb = lpfc_sli_get_iocbq(phba);
2652 pring->missbufcnt = cnt;
2657 /* 2 buffers can be posted per command */
2658 /* Allocate buffer to post */
2659 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2661 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2662 if (!mp1 || !mp1->virt) {
2664 lpfc_sli_release_iocbq(phba, iocb);
2665 pring->missbufcnt = cnt;
2669 INIT_LIST_HEAD(&mp1->list);
2670 /* Allocate buffer to post */
2672 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2674 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2676 if (!mp2 || !mp2->virt) {
2678 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2680 lpfc_sli_release_iocbq(phba, iocb);
2681 pring->missbufcnt = cnt;
2685 INIT_LIST_HEAD(&mp2->list);
2690 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2691 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2692 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2693 icmd->ulpBdeCount = 1;
2696 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2697 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2698 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2700 icmd->ulpBdeCount = 2;
2703 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2706 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2708 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2712 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2716 lpfc_sli_release_iocbq(phba, iocb);
2717 pring->missbufcnt = cnt;
2720 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2722 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2724 pring->missbufcnt = 0;
2729 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2730 * @phba: pointer to lpfc hba data structure.
2732 * This routine posts initial receive IOCB buffers to the ELS ring. The
2733 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2734 * set to 64 IOCBs. SLI3 only.
2737 * 0 - success (currently always success)
2740 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2742 struct lpfc_sli *psli = &phba->sli;
2744 /* Ring 0, ELS / CT buffers */
2745 lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2746 /* Ring 2 - FCP no buffers needed */
2751 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2754 * lpfc_sha_init - Set up initial array of hash table entries
2755 * @HashResultPointer: pointer to an array as hash table.
2757 * This routine sets up the initial values to the array of hash table entries
2761 lpfc_sha_init(uint32_t * HashResultPointer)
2763 HashResultPointer[0] = 0x67452301;
2764 HashResultPointer[1] = 0xEFCDAB89;
2765 HashResultPointer[2] = 0x98BADCFE;
2766 HashResultPointer[3] = 0x10325476;
2767 HashResultPointer[4] = 0xC3D2E1F0;
2771 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2772 * @HashResultPointer: pointer to an initial/result hash table.
2773 * @HashWorkingPointer: pointer to an working hash table.
2775 * This routine iterates an initial hash table pointed by @HashResultPointer
2776 * with the values from the working hash table pointeed by @HashWorkingPointer.
2777 * The results are putting back to the initial hash table, returned through
2778 * the @HashResultPointer as the result hash table.
2781 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2785 uint32_t A, B, C, D, E;
2788 HashWorkingPointer[t] =
2790 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2792 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2793 } while (++t <= 79);
2795 A = HashResultPointer[0];
2796 B = HashResultPointer[1];
2797 C = HashResultPointer[2];
2798 D = HashResultPointer[3];
2799 E = HashResultPointer[4];
2803 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2804 } else if (t < 40) {
2805 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2806 } else if (t < 60) {
2807 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2809 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2811 TEMP += S(5, A) + E + HashWorkingPointer[t];
2817 } while (++t <= 79);
2819 HashResultPointer[0] += A;
2820 HashResultPointer[1] += B;
2821 HashResultPointer[2] += C;
2822 HashResultPointer[3] += D;
2823 HashResultPointer[4] += E;
2828 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2829 * @RandomChallenge: pointer to the entry of host challenge random number array.
2830 * @HashWorking: pointer to the entry of the working hash array.
2832 * This routine calculates the working hash array referred by @HashWorking
2833 * from the challenge random numbers associated with the host, referred by
2834 * @RandomChallenge. The result is put into the entry of the working hash
2835 * array and returned by reference through @HashWorking.
2838 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2840 *HashWorking = (*RandomChallenge ^ *HashWorking);
2844 * lpfc_hba_init - Perform special handling for LC HBA initialization
2845 * @phba: pointer to lpfc hba data structure.
2846 * @hbainit: pointer to an array of unsigned 32-bit integers.
2848 * This routine performs the special handling for LC HBA initialization.
2851 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2854 uint32_t *HashWorking;
2855 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2857 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2861 HashWorking[0] = HashWorking[78] = *pwwnn++;
2862 HashWorking[1] = HashWorking[79] = *pwwnn;
2864 for (t = 0; t < 7; t++)
2865 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2867 lpfc_sha_init(hbainit);
2868 lpfc_sha_iterate(hbainit, HashWorking);
2873 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2874 * @vport: pointer to a virtual N_Port data structure.
2876 * This routine performs the necessary cleanups before deleting the @vport.
2877 * It invokes the discovery state machine to perform necessary state
2878 * transitions and to release the ndlps associated with the @vport. Note,
2879 * the physical port is treated as @vport 0.
2882 lpfc_cleanup(struct lpfc_vport *vport)
2884 struct lpfc_hba *phba = vport->phba;
2885 struct lpfc_nodelist *ndlp, *next_ndlp;
2888 if (phba->link_state > LPFC_LINK_DOWN)
2889 lpfc_port_link_failure(vport);
2891 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2892 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2893 ndlp->nlp_DID == Fabric_DID) {
2894 /* Just free up ndlp with Fabric_DID for vports */
2899 if (ndlp->nlp_DID == Fabric_Cntl_DID &&
2900 ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2905 /* Fabric Ports not in UNMAPPED state are cleaned up in the
2908 if (ndlp->nlp_type & NLP_FABRIC &&
2909 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE)
2910 lpfc_disc_state_machine(vport, ndlp, NULL,
2911 NLP_EVT_DEVICE_RECOVERY);
2913 if (!(ndlp->fc4_xpt_flags & (NVME_XPT_REGD|SCSI_XPT_REGD)))
2914 lpfc_disc_state_machine(vport, ndlp, NULL,
2918 /* At this point, ALL ndlp's should be gone
2919 * because of the previous NLP_EVT_DEVICE_RM.
2920 * Lets wait for this to happen, if needed.
2922 while (!list_empty(&vport->fc_nodes)) {
2924 lpfc_printf_vlog(vport, KERN_ERR,
2926 "0233 Nodelist not empty\n");
2927 list_for_each_entry_safe(ndlp, next_ndlp,
2928 &vport->fc_nodes, nlp_listp) {
2929 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2931 "0282 did:x%x ndlp:x%px "
2932 "refcnt:%d xflags x%x nflag x%x\n",
2933 ndlp->nlp_DID, (void *)ndlp,
2934 kref_read(&ndlp->kref),
2935 ndlp->fc4_xpt_flags,
2941 /* Wait for any activity on ndlps to settle */
2944 lpfc_cleanup_vports_rrqs(vport, NULL);
2948 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2949 * @vport: pointer to a virtual N_Port data structure.
2951 * This routine stops all the timers associated with a @vport. This function
2952 * is invoked before disabling or deleting a @vport. Note that the physical
2953 * port is treated as @vport 0.
2956 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2958 del_timer_sync(&vport->els_tmofunc);
2959 del_timer_sync(&vport->delayed_disc_tmo);
2960 lpfc_can_disctmo(vport);
2965 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2966 * @phba: pointer to lpfc hba data structure.
2968 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2969 * caller of this routine should already hold the host lock.
2972 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2974 /* Clear pending FCF rediscovery wait flag */
2975 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2977 /* Now, try to stop the timer */
2978 del_timer(&phba->fcf.redisc_wait);
2982 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2983 * @phba: pointer to lpfc hba data structure.
2985 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2986 * checks whether the FCF rediscovery wait timer is pending with the host
2987 * lock held before proceeding with disabling the timer and clearing the
2988 * wait timer pendig flag.
2991 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2993 spin_lock_irq(&phba->hbalock);
2994 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2995 /* FCF rediscovery timer already fired or stopped */
2996 spin_unlock_irq(&phba->hbalock);
2999 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3000 /* Clear failover in progress flags */
3001 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
3002 spin_unlock_irq(&phba->hbalock);
3006 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
3007 * @phba: pointer to lpfc hba data structure.
3009 * This routine stops all the timers associated with a HBA. This function is
3010 * invoked before either putting a HBA offline or unloading the driver.
3013 lpfc_stop_hba_timers(struct lpfc_hba *phba)
3016 lpfc_stop_vport_timers(phba->pport);
3017 cancel_delayed_work_sync(&phba->eq_delay_work);
3018 cancel_delayed_work_sync(&phba->idle_stat_delay_work);
3019 del_timer_sync(&phba->sli.mbox_tmo);
3020 del_timer_sync(&phba->fabric_block_timer);
3021 del_timer_sync(&phba->eratt_poll);
3022 del_timer_sync(&phba->hb_tmofunc);
3023 if (phba->sli_rev == LPFC_SLI_REV4) {
3024 del_timer_sync(&phba->rrq_tmr);
3025 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
3027 phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
3029 switch (phba->pci_dev_grp) {
3030 case LPFC_PCI_DEV_LP:
3031 /* Stop any LightPulse device specific driver timers */
3032 del_timer_sync(&phba->fcp_poll_timer);
3034 case LPFC_PCI_DEV_OC:
3035 /* Stop any OneConnect device specific driver timers */
3036 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3039 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3040 "0297 Invalid device group (x%x)\n",
3048 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
3049 * @phba: pointer to lpfc hba data structure.
3050 * @mbx_action: flag for mailbox no wait action.
3052 * This routine marks a HBA's management interface as blocked. Once the HBA's
3053 * management interface is marked as blocked, all the user space access to
3054 * the HBA, whether they are from sysfs interface or libdfc interface will
3055 * all be blocked. The HBA is set to block the management interface when the
3056 * driver prepares the HBA interface for online or offline.
3059 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
3061 unsigned long iflag;
3062 uint8_t actcmd = MBX_HEARTBEAT;
3063 unsigned long timeout;
3065 spin_lock_irqsave(&phba->hbalock, iflag);
3066 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
3067 spin_unlock_irqrestore(&phba->hbalock, iflag);
3068 if (mbx_action == LPFC_MBX_NO_WAIT)
3070 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
3071 spin_lock_irqsave(&phba->hbalock, iflag);
3072 if (phba->sli.mbox_active) {
3073 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
3074 /* Determine how long we might wait for the active mailbox
3075 * command to be gracefully completed by firmware.
3077 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
3078 phba->sli.mbox_active) * 1000) + jiffies;
3080 spin_unlock_irqrestore(&phba->hbalock, iflag);
3082 /* Wait for the outstnading mailbox command to complete */
3083 while (phba->sli.mbox_active) {
3084 /* Check active mailbox complete status every 2ms */
3086 if (time_after(jiffies, timeout)) {
3087 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3088 "2813 Mgmt IO is Blocked %x "
3089 "- mbox cmd %x still active\n",
3090 phba->sli.sli_flag, actcmd);
3097 * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3098 * @phba: pointer to lpfc hba data structure.
3100 * Allocate RPIs for all active remote nodes. This is needed whenever
3101 * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3102 * is to fixup the temporary rpi assignments.
3105 lpfc_sli4_node_prep(struct lpfc_hba *phba)
3107 struct lpfc_nodelist *ndlp, *next_ndlp;
3108 struct lpfc_vport **vports;
3111 if (phba->sli_rev != LPFC_SLI_REV4)
3114 vports = lpfc_create_vport_work_array(phba);
3118 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3119 if (vports[i]->load_flag & FC_UNLOADING)
3122 list_for_each_entry_safe(ndlp, next_ndlp,
3123 &vports[i]->fc_nodes,
3125 rpi = lpfc_sli4_alloc_rpi(phba);
3126 if (rpi == LPFC_RPI_ALLOC_ERROR) {
3127 /* TODO print log? */
3130 ndlp->nlp_rpi = rpi;
3131 lpfc_printf_vlog(ndlp->vport, KERN_INFO,
3132 LOG_NODE | LOG_DISCOVERY,
3133 "0009 Assign RPI x%x to ndlp x%px "
3134 "DID:x%06x flg:x%x\n",
3135 ndlp->nlp_rpi, ndlp, ndlp->nlp_DID,
3139 lpfc_destroy_vport_work_array(phba, vports);
3143 * lpfc_create_expedite_pool - create expedite pool
3144 * @phba: pointer to lpfc hba data structure.
3146 * This routine moves a batch of XRIs from lpfc_io_buf_list_put of HWQ 0
3147 * to expedite pool. Mark them as expedite.
3149 static void lpfc_create_expedite_pool(struct lpfc_hba *phba)
3151 struct lpfc_sli4_hdw_queue *qp;
3152 struct lpfc_io_buf *lpfc_ncmd;
3153 struct lpfc_io_buf *lpfc_ncmd_next;
3154 struct lpfc_epd_pool *epd_pool;
3155 unsigned long iflag;
3157 epd_pool = &phba->epd_pool;
3158 qp = &phba->sli4_hba.hdwq[0];
3160 spin_lock_init(&epd_pool->lock);
3161 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3162 spin_lock(&epd_pool->lock);
3163 INIT_LIST_HEAD(&epd_pool->list);
3164 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3165 &qp->lpfc_io_buf_list_put, list) {
3166 list_move_tail(&lpfc_ncmd->list, &epd_pool->list);
3167 lpfc_ncmd->expedite = true;
3170 if (epd_pool->count >= XRI_BATCH)
3173 spin_unlock(&epd_pool->lock);
3174 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3178 * lpfc_destroy_expedite_pool - destroy expedite pool
3179 * @phba: pointer to lpfc hba data structure.
3181 * This routine returns XRIs from expedite pool to lpfc_io_buf_list_put
3182 * of HWQ 0. Clear the mark.
3184 static void lpfc_destroy_expedite_pool(struct lpfc_hba *phba)
3186 struct lpfc_sli4_hdw_queue *qp;
3187 struct lpfc_io_buf *lpfc_ncmd;
3188 struct lpfc_io_buf *lpfc_ncmd_next;
3189 struct lpfc_epd_pool *epd_pool;
3190 unsigned long iflag;
3192 epd_pool = &phba->epd_pool;
3193 qp = &phba->sli4_hba.hdwq[0];
3195 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3196 spin_lock(&epd_pool->lock);
3197 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3198 &epd_pool->list, list) {
3199 list_move_tail(&lpfc_ncmd->list,
3200 &qp->lpfc_io_buf_list_put);
3201 lpfc_ncmd->flags = false;
3205 spin_unlock(&epd_pool->lock);
3206 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3210 * lpfc_create_multixri_pools - create multi-XRI pools
3211 * @phba: pointer to lpfc hba data structure.
3213 * This routine initialize public, private per HWQ. Then, move XRIs from
3214 * lpfc_io_buf_list_put to public pool. High and low watermark are also
3217 void lpfc_create_multixri_pools(struct lpfc_hba *phba)
3222 struct lpfc_io_buf *lpfc_ncmd;
3223 struct lpfc_io_buf *lpfc_ncmd_next;
3224 unsigned long iflag;
3225 struct lpfc_sli4_hdw_queue *qp;
3226 struct lpfc_multixri_pool *multixri_pool;
3227 struct lpfc_pbl_pool *pbl_pool;
3228 struct lpfc_pvt_pool *pvt_pool;
3230 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3231 "1234 num_hdw_queue=%d num_present_cpu=%d common_xri_cnt=%d\n",
3232 phba->cfg_hdw_queue, phba->sli4_hba.num_present_cpu,
3233 phba->sli4_hba.io_xri_cnt);
3235 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3236 lpfc_create_expedite_pool(phba);
3238 hwq_count = phba->cfg_hdw_queue;
3239 count_per_hwq = phba->sli4_hba.io_xri_cnt / hwq_count;
3241 for (i = 0; i < hwq_count; i++) {
3242 multixri_pool = kzalloc(sizeof(*multixri_pool), GFP_KERNEL);
3244 if (!multixri_pool) {
3245 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3246 "1238 Failed to allocate memory for "
3249 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3250 lpfc_destroy_expedite_pool(phba);
3254 qp = &phba->sli4_hba.hdwq[j];
3255 kfree(qp->p_multixri_pool);
3258 phba->cfg_xri_rebalancing = 0;
3262 qp = &phba->sli4_hba.hdwq[i];
3263 qp->p_multixri_pool = multixri_pool;
3265 multixri_pool->xri_limit = count_per_hwq;
3266 multixri_pool->rrb_next_hwqid = i;
3268 /* Deal with public free xri pool */
3269 pbl_pool = &multixri_pool->pbl_pool;
3270 spin_lock_init(&pbl_pool->lock);
3271 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3272 spin_lock(&pbl_pool->lock);
3273 INIT_LIST_HEAD(&pbl_pool->list);
3274 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3275 &qp->lpfc_io_buf_list_put, list) {
3276 list_move_tail(&lpfc_ncmd->list, &pbl_pool->list);
3280 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3281 "1235 Moved %d buffers from PUT list over to pbl_pool[%d]\n",
3282 pbl_pool->count, i);
3283 spin_unlock(&pbl_pool->lock);
3284 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3286 /* Deal with private free xri pool */
3287 pvt_pool = &multixri_pool->pvt_pool;
3288 pvt_pool->high_watermark = multixri_pool->xri_limit / 2;
3289 pvt_pool->low_watermark = XRI_BATCH;
3290 spin_lock_init(&pvt_pool->lock);
3291 spin_lock_irqsave(&pvt_pool->lock, iflag);
3292 INIT_LIST_HEAD(&pvt_pool->list);
3293 pvt_pool->count = 0;
3294 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
3299 * lpfc_destroy_multixri_pools - destroy multi-XRI pools
3300 * @phba: pointer to lpfc hba data structure.
3302 * This routine returns XRIs from public/private to lpfc_io_buf_list_put.
3304 static void lpfc_destroy_multixri_pools(struct lpfc_hba *phba)
3308 struct lpfc_io_buf *lpfc_ncmd;
3309 struct lpfc_io_buf *lpfc_ncmd_next;
3310 unsigned long iflag;
3311 struct lpfc_sli4_hdw_queue *qp;
3312 struct lpfc_multixri_pool *multixri_pool;
3313 struct lpfc_pbl_pool *pbl_pool;
3314 struct lpfc_pvt_pool *pvt_pool;
3316 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3317 lpfc_destroy_expedite_pool(phba);
3319 if (!(phba->pport->load_flag & FC_UNLOADING))
3320 lpfc_sli_flush_io_rings(phba);
3322 hwq_count = phba->cfg_hdw_queue;
3324 for (i = 0; i < hwq_count; i++) {
3325 qp = &phba->sli4_hba.hdwq[i];
3326 multixri_pool = qp->p_multixri_pool;
3330 qp->p_multixri_pool = NULL;
3332 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3334 /* Deal with public free xri pool */
3335 pbl_pool = &multixri_pool->pbl_pool;
3336 spin_lock(&pbl_pool->lock);
3338 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3339 "1236 Moving %d buffers from pbl_pool[%d] TO PUT list\n",
3340 pbl_pool->count, i);
3342 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3343 &pbl_pool->list, list) {
3344 list_move_tail(&lpfc_ncmd->list,
3345 &qp->lpfc_io_buf_list_put);
3350 INIT_LIST_HEAD(&pbl_pool->list);
3351 pbl_pool->count = 0;
3353 spin_unlock(&pbl_pool->lock);
3355 /* Deal with private free xri pool */
3356 pvt_pool = &multixri_pool->pvt_pool;
3357 spin_lock(&pvt_pool->lock);
3359 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3360 "1237 Moving %d buffers from pvt_pool[%d] TO PUT list\n",
3361 pvt_pool->count, i);
3363 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3364 &pvt_pool->list, list) {
3365 list_move_tail(&lpfc_ncmd->list,
3366 &qp->lpfc_io_buf_list_put);
3371 INIT_LIST_HEAD(&pvt_pool->list);
3372 pvt_pool->count = 0;
3374 spin_unlock(&pvt_pool->lock);
3375 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3377 kfree(multixri_pool);
3382 * lpfc_online - Initialize and bring a HBA online
3383 * @phba: pointer to lpfc hba data structure.
3385 * This routine initializes the HBA and brings a HBA online. During this
3386 * process, the management interface is blocked to prevent user space access
3387 * to the HBA interfering with the driver initialization.
3394 lpfc_online(struct lpfc_hba *phba)
3396 struct lpfc_vport *vport;
3397 struct lpfc_vport **vports;
3399 bool vpis_cleared = false;
3403 vport = phba->pport;
3405 if (!(vport->fc_flag & FC_OFFLINE_MODE))
3408 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3409 "0458 Bring Adapter online\n");
3411 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3413 if (phba->sli_rev == LPFC_SLI_REV4) {
3414 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3415 lpfc_unblock_mgmt_io(phba);
3418 spin_lock_irq(&phba->hbalock);
3419 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3420 vpis_cleared = true;
3421 spin_unlock_irq(&phba->hbalock);
3423 /* Reestablish the local initiator port.
3424 * The offline process destroyed the previous lport.
3426 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3427 !phba->nvmet_support) {
3428 error = lpfc_nvme_create_localport(phba->pport);
3430 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3431 "6132 NVME restore reg failed "
3432 "on nvmei error x%x\n", error);
3435 lpfc_sli_queue_init(phba);
3436 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3437 lpfc_unblock_mgmt_io(phba);
3442 vports = lpfc_create_vport_work_array(phba);
3443 if (vports != NULL) {
3444 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3445 struct Scsi_Host *shost;
3446 shost = lpfc_shost_from_vport(vports[i]);
3447 spin_lock_irq(shost->host_lock);
3448 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3449 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3450 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3451 if (phba->sli_rev == LPFC_SLI_REV4) {
3452 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3453 if ((vpis_cleared) &&
3454 (vports[i]->port_type !=
3455 LPFC_PHYSICAL_PORT))
3458 spin_unlock_irq(shost->host_lock);
3461 lpfc_destroy_vport_work_array(phba, vports);
3463 if (phba->cfg_xri_rebalancing)
3464 lpfc_create_multixri_pools(phba);
3466 lpfc_cpuhp_add(phba);
3468 lpfc_unblock_mgmt_io(phba);
3473 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3474 * @phba: pointer to lpfc hba data structure.
3476 * This routine marks a HBA's management interface as not blocked. Once the
3477 * HBA's management interface is marked as not blocked, all the user space
3478 * access to the HBA, whether they are from sysfs interface or libdfc
3479 * interface will be allowed. The HBA is set to block the management interface
3480 * when the driver prepares the HBA interface for online or offline and then
3481 * set to unblock the management interface afterwards.
3484 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3486 unsigned long iflag;
3488 spin_lock_irqsave(&phba->hbalock, iflag);
3489 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3490 spin_unlock_irqrestore(&phba->hbalock, iflag);
3494 * lpfc_offline_prep - Prepare a HBA to be brought offline
3495 * @phba: pointer to lpfc hba data structure.
3496 * @mbx_action: flag for mailbox shutdown action.
3498 * This routine is invoked to prepare a HBA to be brought offline. It performs
3499 * unregistration login to all the nodes on all vports and flushes the mailbox
3500 * queue to make it ready to be brought offline.
3503 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3505 struct lpfc_vport *vport = phba->pport;
3506 struct lpfc_nodelist *ndlp, *next_ndlp;
3507 struct lpfc_vport **vports;
3508 struct Scsi_Host *shost;
3511 if (vport->fc_flag & FC_OFFLINE_MODE)
3514 lpfc_block_mgmt_io(phba, mbx_action);
3516 lpfc_linkdown(phba);
3518 /* Issue an unreg_login to all nodes on all vports */
3519 vports = lpfc_create_vport_work_array(phba);
3520 if (vports != NULL) {
3521 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3522 if (vports[i]->load_flag & FC_UNLOADING)
3524 shost = lpfc_shost_from_vport(vports[i]);
3525 spin_lock_irq(shost->host_lock);
3526 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3527 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3528 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3529 spin_unlock_irq(shost->host_lock);
3531 shost = lpfc_shost_from_vport(vports[i]);
3532 list_for_each_entry_safe(ndlp, next_ndlp,
3533 &vports[i]->fc_nodes,
3535 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
3536 /* Driver must assume RPI is invalid for
3537 * any unused or inactive node.
3539 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
3543 spin_lock_irq(&ndlp->lock);
3544 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3545 spin_unlock_irq(&ndlp->lock);
3547 * Whenever an SLI4 port goes offline, free the
3548 * RPI. Get a new RPI when the adapter port
3549 * comes back online.
3551 if (phba->sli_rev == LPFC_SLI_REV4) {
3552 lpfc_printf_vlog(vports[i], KERN_INFO,
3553 LOG_NODE | LOG_DISCOVERY,
3554 "0011 Free RPI x%x on "
3555 "ndlp: x%px did x%x\n",
3556 ndlp->nlp_rpi, ndlp,
3558 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3559 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
3561 lpfc_unreg_rpi(vports[i], ndlp);
3563 if (ndlp->nlp_type & NLP_FABRIC) {
3564 lpfc_disc_state_machine(vports[i], ndlp,
3565 NULL, NLP_EVT_DEVICE_RECOVERY);
3567 /* Don't remove the node unless the
3568 * has been unregistered with the
3569 * transport. If so, let dev_loss
3570 * take care of the node.
3572 if (!(ndlp->fc4_xpt_flags &
3573 (NVME_XPT_REGD | SCSI_XPT_REGD)))
3574 lpfc_disc_state_machine
3582 lpfc_destroy_vport_work_array(phba, vports);
3584 lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3587 flush_workqueue(phba->wq);
3591 * lpfc_offline - Bring a HBA offline
3592 * @phba: pointer to lpfc hba data structure.
3594 * This routine actually brings a HBA offline. It stops all the timers
3595 * associated with the HBA, brings down the SLI layer, and eventually
3596 * marks the HBA as in offline state for the upper layer protocol.
3599 lpfc_offline(struct lpfc_hba *phba)
3601 struct Scsi_Host *shost;
3602 struct lpfc_vport **vports;
3605 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3608 /* stop port and all timers associated with this hba */
3609 lpfc_stop_port(phba);
3611 /* Tear down the local and target port registrations. The
3612 * nvme transports need to cleanup.
3614 lpfc_nvmet_destroy_targetport(phba);
3615 lpfc_nvme_destroy_localport(phba->pport);
3617 vports = lpfc_create_vport_work_array(phba);
3619 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3620 lpfc_stop_vport_timers(vports[i]);
3621 lpfc_destroy_vport_work_array(phba, vports);
3622 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3623 "0460 Bring Adapter offline\n");
3624 /* Bring down the SLI Layer and cleanup. The HBA is offline
3626 lpfc_sli_hba_down(phba);
3627 spin_lock_irq(&phba->hbalock);
3629 spin_unlock_irq(&phba->hbalock);
3630 vports = lpfc_create_vport_work_array(phba);
3632 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3633 shost = lpfc_shost_from_vport(vports[i]);
3634 spin_lock_irq(shost->host_lock);
3635 vports[i]->work_port_events = 0;
3636 vports[i]->fc_flag |= FC_OFFLINE_MODE;
3637 spin_unlock_irq(shost->host_lock);
3639 lpfc_destroy_vport_work_array(phba, vports);
3640 /* If OFFLINE flag is clear (i.e. unloading), cpuhp removal is handled
3643 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3644 __lpfc_cpuhp_remove(phba);
3646 if (phba->cfg_xri_rebalancing)
3647 lpfc_destroy_multixri_pools(phba);
3651 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3652 * @phba: pointer to lpfc hba data structure.
3654 * This routine is to free all the SCSI buffers and IOCBs from the driver
3655 * list back to kernel. It is called from lpfc_pci_remove_one to free
3656 * the internal resources before the device is removed from the system.
3659 lpfc_scsi_free(struct lpfc_hba *phba)
3661 struct lpfc_io_buf *sb, *sb_next;
3663 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3666 spin_lock_irq(&phba->hbalock);
3668 /* Release all the lpfc_scsi_bufs maintained by this host. */
3670 spin_lock(&phba->scsi_buf_list_put_lock);
3671 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3673 list_del(&sb->list);
3674 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3677 phba->total_scsi_bufs--;
3679 spin_unlock(&phba->scsi_buf_list_put_lock);
3681 spin_lock(&phba->scsi_buf_list_get_lock);
3682 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3684 list_del(&sb->list);
3685 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3688 phba->total_scsi_bufs--;
3690 spin_unlock(&phba->scsi_buf_list_get_lock);
3691 spin_unlock_irq(&phba->hbalock);
3695 * lpfc_io_free - Free all the IO buffers and IOCBs from driver lists
3696 * @phba: pointer to lpfc hba data structure.
3698 * This routine is to free all the IO buffers and IOCBs from the driver
3699 * list back to kernel. It is called from lpfc_pci_remove_one to free
3700 * the internal resources before the device is removed from the system.
3703 lpfc_io_free(struct lpfc_hba *phba)
3705 struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
3706 struct lpfc_sli4_hdw_queue *qp;
3709 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3710 qp = &phba->sli4_hba.hdwq[idx];
3711 /* Release all the lpfc_nvme_bufs maintained by this host. */
3712 spin_lock(&qp->io_buf_list_put_lock);
3713 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3714 &qp->lpfc_io_buf_list_put,
3716 list_del(&lpfc_ncmd->list);
3718 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3719 lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3720 if (phba->cfg_xpsgl && !phba->nvmet_support)
3721 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3722 lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3724 qp->total_io_bufs--;
3726 spin_unlock(&qp->io_buf_list_put_lock);
3728 spin_lock(&qp->io_buf_list_get_lock);
3729 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3730 &qp->lpfc_io_buf_list_get,
3732 list_del(&lpfc_ncmd->list);
3734 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3735 lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3736 if (phba->cfg_xpsgl && !phba->nvmet_support)
3737 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3738 lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3740 qp->total_io_bufs--;
3742 spin_unlock(&qp->io_buf_list_get_lock);
3747 * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3748 * @phba: pointer to lpfc hba data structure.
3750 * This routine first calculates the sizes of the current els and allocated
3751 * scsi sgl lists, and then goes through all sgls to updates the physical
3752 * XRIs assigned due to port function reset. During port initialization, the
3753 * current els and allocated scsi sgl lists are 0s.
3756 * 0 - successful (for now, it always returns 0)
3759 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3761 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3762 uint16_t i, lxri, xri_cnt, els_xri_cnt;
3763 LIST_HEAD(els_sgl_list);
3767 * update on pci function's els xri-sgl list
3769 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3771 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3772 /* els xri-sgl expanded */
3773 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3774 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3775 "3157 ELS xri-sgl count increased from "
3776 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3778 /* allocate the additional els sgls */
3779 for (i = 0; i < xri_cnt; i++) {
3780 sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3782 if (sglq_entry == NULL) {
3783 lpfc_printf_log(phba, KERN_ERR,
3785 "2562 Failure to allocate an "
3786 "ELS sgl entry:%d\n", i);
3790 sglq_entry->buff_type = GEN_BUFF_TYPE;
3791 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3793 if (sglq_entry->virt == NULL) {
3795 lpfc_printf_log(phba, KERN_ERR,
3797 "2563 Failure to allocate an "
3798 "ELS mbuf:%d\n", i);
3802 sglq_entry->sgl = sglq_entry->virt;
3803 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3804 sglq_entry->state = SGL_FREED;
3805 list_add_tail(&sglq_entry->list, &els_sgl_list);
3807 spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
3808 list_splice_init(&els_sgl_list,
3809 &phba->sli4_hba.lpfc_els_sgl_list);
3810 spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
3811 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3812 /* els xri-sgl shrinked */
3813 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3814 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3815 "3158 ELS xri-sgl count decreased from "
3816 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3818 spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
3819 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3821 /* release extra els sgls from list */
3822 for (i = 0; i < xri_cnt; i++) {
3823 list_remove_head(&els_sgl_list,
3824 sglq_entry, struct lpfc_sglq, list);
3826 __lpfc_mbuf_free(phba, sglq_entry->virt,
3831 list_splice_init(&els_sgl_list,
3832 &phba->sli4_hba.lpfc_els_sgl_list);
3833 spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
3835 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3836 "3163 ELS xri-sgl count unchanged: %d\n",
3838 phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3840 /* update xris to els sgls on the list */
3842 sglq_entry_next = NULL;
3843 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3844 &phba->sli4_hba.lpfc_els_sgl_list, list) {
3845 lxri = lpfc_sli4_next_xritag(phba);
3846 if (lxri == NO_XRI) {
3847 lpfc_printf_log(phba, KERN_ERR,
3849 "2400 Failed to allocate xri for "
3854 sglq_entry->sli4_lxritag = lxri;
3855 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3860 lpfc_free_els_sgl_list(phba);
3865 * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3866 * @phba: pointer to lpfc hba data structure.
3868 * This routine first calculates the sizes of the current els and allocated
3869 * scsi sgl lists, and then goes through all sgls to updates the physical
3870 * XRIs assigned due to port function reset. During port initialization, the
3871 * current els and allocated scsi sgl lists are 0s.
3874 * 0 - successful (for now, it always returns 0)
3877 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
3879 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3880 uint16_t i, lxri, xri_cnt, els_xri_cnt;
3881 uint16_t nvmet_xri_cnt;
3882 LIST_HEAD(nvmet_sgl_list);
3886 * update on pci function's nvmet xri-sgl list
3888 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3890 /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
3891 nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3892 if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
3893 /* els xri-sgl expanded */
3894 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
3895 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3896 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
3897 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
3898 /* allocate the additional nvmet sgls */
3899 for (i = 0; i < xri_cnt; i++) {
3900 sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3902 if (sglq_entry == NULL) {
3903 lpfc_printf_log(phba, KERN_ERR,
3905 "6303 Failure to allocate an "
3906 "NVMET sgl entry:%d\n", i);
3910 sglq_entry->buff_type = NVMET_BUFF_TYPE;
3911 sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
3913 if (sglq_entry->virt == NULL) {
3915 lpfc_printf_log(phba, KERN_ERR,
3917 "6304 Failure to allocate an "
3918 "NVMET buf:%d\n", i);
3922 sglq_entry->sgl = sglq_entry->virt;
3923 memset(sglq_entry->sgl, 0,
3924 phba->cfg_sg_dma_buf_size);
3925 sglq_entry->state = SGL_FREED;
3926 list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
3928 spin_lock_irq(&phba->hbalock);
3929 spin_lock(&phba->sli4_hba.sgl_list_lock);
3930 list_splice_init(&nvmet_sgl_list,
3931 &phba->sli4_hba.lpfc_nvmet_sgl_list);
3932 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3933 spin_unlock_irq(&phba->hbalock);
3934 } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
3935 /* nvmet xri-sgl shrunk */
3936 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
3937 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3938 "6305 NVMET xri-sgl count decreased from "
3939 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
3941 spin_lock_irq(&phba->hbalock);
3942 spin_lock(&phba->sli4_hba.sgl_list_lock);
3943 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
3945 /* release extra nvmet sgls from list */
3946 for (i = 0; i < xri_cnt; i++) {
3947 list_remove_head(&nvmet_sgl_list,
3948 sglq_entry, struct lpfc_sglq, list);
3950 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
3955 list_splice_init(&nvmet_sgl_list,
3956 &phba->sli4_hba.lpfc_nvmet_sgl_list);
3957 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3958 spin_unlock_irq(&phba->hbalock);
3960 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3961 "6306 NVMET xri-sgl count unchanged: %d\n",
3963 phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
3965 /* update xris to nvmet sgls on the list */
3967 sglq_entry_next = NULL;
3968 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3969 &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
3970 lxri = lpfc_sli4_next_xritag(phba);
3971 if (lxri == NO_XRI) {
3972 lpfc_printf_log(phba, KERN_ERR,
3974 "6307 Failed to allocate xri for "
3979 sglq_entry->sli4_lxritag = lxri;
3980 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3985 lpfc_free_nvmet_sgl_list(phba);
3990 lpfc_io_buf_flush(struct lpfc_hba *phba, struct list_head *cbuf)
3993 struct lpfc_sli4_hdw_queue *qp;
3994 struct lpfc_io_buf *lpfc_cmd;
3995 struct lpfc_io_buf *iobufp, *prev_iobufp;
3996 int idx, cnt, xri, inserted;
3999 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4000 qp = &phba->sli4_hba.hdwq[idx];
4001 spin_lock_irq(&qp->io_buf_list_get_lock);
4002 spin_lock(&qp->io_buf_list_put_lock);
4004 /* Take everything off the get and put lists */
4005 list_splice_init(&qp->lpfc_io_buf_list_get, &blist);
4006 list_splice(&qp->lpfc_io_buf_list_put, &blist);
4007 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
4008 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
4009 cnt += qp->get_io_bufs + qp->put_io_bufs;
4010 qp->get_io_bufs = 0;
4011 qp->put_io_bufs = 0;
4012 qp->total_io_bufs = 0;
4013 spin_unlock(&qp->io_buf_list_put_lock);
4014 spin_unlock_irq(&qp->io_buf_list_get_lock);
4018 * Take IO buffers off blist and put on cbuf sorted by XRI.
4019 * This is because POST_SGL takes a sequential range of XRIs
4020 * to post to the firmware.
4022 for (idx = 0; idx < cnt; idx++) {
4023 list_remove_head(&blist, lpfc_cmd, struct lpfc_io_buf, list);
4027 list_add_tail(&lpfc_cmd->list, cbuf);
4030 xri = lpfc_cmd->cur_iocbq.sli4_xritag;
4033 list_for_each_entry(iobufp, cbuf, list) {
4034 if (xri < iobufp->cur_iocbq.sli4_xritag) {
4036 list_add(&lpfc_cmd->list,
4037 &prev_iobufp->list);
4039 list_add(&lpfc_cmd->list, cbuf);
4043 prev_iobufp = iobufp;
4046 list_add_tail(&lpfc_cmd->list, cbuf);
4052 lpfc_io_buf_replenish(struct lpfc_hba *phba, struct list_head *cbuf)
4054 struct lpfc_sli4_hdw_queue *qp;
4055 struct lpfc_io_buf *lpfc_cmd;
4058 qp = phba->sli4_hba.hdwq;
4060 while (!list_empty(cbuf)) {
4061 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4062 list_remove_head(cbuf, lpfc_cmd,
4063 struct lpfc_io_buf, list);
4067 qp = &phba->sli4_hba.hdwq[idx];
4068 lpfc_cmd->hdwq_no = idx;
4069 lpfc_cmd->hdwq = qp;
4070 lpfc_cmd->cur_iocbq.wqe_cmpl = NULL;
4071 lpfc_cmd->cur_iocbq.iocb_cmpl = NULL;
4072 spin_lock(&qp->io_buf_list_put_lock);
4073 list_add_tail(&lpfc_cmd->list,
4074 &qp->lpfc_io_buf_list_put);
4076 qp->total_io_bufs++;
4077 spin_unlock(&qp->io_buf_list_put_lock);
4084 * lpfc_sli4_io_sgl_update - update xri-sgl sizing and mapping
4085 * @phba: pointer to lpfc hba data structure.
4087 * This routine first calculates the sizes of the current els and allocated
4088 * scsi sgl lists, and then goes through all sgls to updates the physical
4089 * XRIs assigned due to port function reset. During port initialization, the
4090 * current els and allocated scsi sgl lists are 0s.
4093 * 0 - successful (for now, it always returns 0)
4096 lpfc_sli4_io_sgl_update(struct lpfc_hba *phba)
4098 struct lpfc_io_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
4099 uint16_t i, lxri, els_xri_cnt;
4100 uint16_t io_xri_cnt, io_xri_max;
4101 LIST_HEAD(io_sgl_list);
4105 * update on pci function's allocated nvme xri-sgl list
4108 /* maximum number of xris available for nvme buffers */
4109 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4110 io_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4111 phba->sli4_hba.io_xri_max = io_xri_max;
4113 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4114 "6074 Current allocated XRI sgl count:%d, "
4115 "maximum XRI count:%d\n",
4116 phba->sli4_hba.io_xri_cnt,
4117 phba->sli4_hba.io_xri_max);
4119 cnt = lpfc_io_buf_flush(phba, &io_sgl_list);
4121 if (phba->sli4_hba.io_xri_cnt > phba->sli4_hba.io_xri_max) {
4122 /* max nvme xri shrunk below the allocated nvme buffers */
4123 io_xri_cnt = phba->sli4_hba.io_xri_cnt -
4124 phba->sli4_hba.io_xri_max;
4125 /* release the extra allocated nvme buffers */
4126 for (i = 0; i < io_xri_cnt; i++) {
4127 list_remove_head(&io_sgl_list, lpfc_ncmd,
4128 struct lpfc_io_buf, list);
4130 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4132 lpfc_ncmd->dma_handle);
4136 phba->sli4_hba.io_xri_cnt -= io_xri_cnt;
4139 /* update xris associated to remaining allocated nvme buffers */
4141 lpfc_ncmd_next = NULL;
4142 phba->sli4_hba.io_xri_cnt = cnt;
4143 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4144 &io_sgl_list, list) {
4145 lxri = lpfc_sli4_next_xritag(phba);
4146 if (lxri == NO_XRI) {
4147 lpfc_printf_log(phba, KERN_ERR,
4149 "6075 Failed to allocate xri for "
4154 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
4155 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4157 cnt = lpfc_io_buf_replenish(phba, &io_sgl_list);
4166 * lpfc_new_io_buf - IO buffer allocator for HBA with SLI4 IF spec
4167 * @phba: Pointer to lpfc hba data structure.
4168 * @num_to_alloc: The requested number of buffers to allocate.
4170 * This routine allocates nvme buffers for device with SLI-4 interface spec,
4171 * the nvme buffer contains all the necessary information needed to initiate
4172 * an I/O. After allocating up to @num_to_allocate IO buffers and put
4173 * them on a list, it post them to the port by using SGL block post.
4176 * int - number of IO buffers that were allocated and posted.
4177 * 0 = failure, less than num_to_alloc is a partial failure.
4180 lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc)
4182 struct lpfc_io_buf *lpfc_ncmd;
4183 struct lpfc_iocbq *pwqeq;
4184 uint16_t iotag, lxri = 0;
4185 int bcnt, num_posted;
4186 LIST_HEAD(prep_nblist);
4187 LIST_HEAD(post_nblist);
4188 LIST_HEAD(nvme_nblist);
4190 phba->sli4_hba.io_xri_cnt = 0;
4191 for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
4192 lpfc_ncmd = kzalloc(sizeof(*lpfc_ncmd), GFP_KERNEL);
4196 * Get memory from the pci pool to map the virt space to
4197 * pci bus space for an I/O. The DMA buffer includes the
4198 * number of SGE's necessary to support the sg_tablesize.
4200 lpfc_ncmd->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool,
4202 &lpfc_ncmd->dma_handle);
4203 if (!lpfc_ncmd->data) {
4208 if (phba->cfg_xpsgl && !phba->nvmet_support) {
4209 INIT_LIST_HEAD(&lpfc_ncmd->dma_sgl_xtra_list);
4212 * 4K Page alignment is CRITICAL to BlockGuard, double
4215 if ((phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
4216 (((unsigned long)(lpfc_ncmd->data) &
4217 (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) {
4218 lpfc_printf_log(phba, KERN_ERR,
4220 "3369 Memory alignment err: "
4222 (unsigned long)lpfc_ncmd->data);
4223 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4225 lpfc_ncmd->dma_handle);
4231 INIT_LIST_HEAD(&lpfc_ncmd->dma_cmd_rsp_list);
4233 lxri = lpfc_sli4_next_xritag(phba);
4234 if (lxri == NO_XRI) {
4235 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4236 lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4240 pwqeq = &lpfc_ncmd->cur_iocbq;
4242 /* Allocate iotag for lpfc_ncmd->cur_iocbq. */
4243 iotag = lpfc_sli_next_iotag(phba, pwqeq);
4245 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4246 lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4248 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4249 "6121 Failed to allocate IOTAG for"
4250 " XRI:0x%x\n", lxri);
4251 lpfc_sli4_free_xri(phba, lxri);
4254 pwqeq->sli4_lxritag = lxri;
4255 pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4256 pwqeq->context1 = lpfc_ncmd;
4258 /* Initialize local short-hand pointers. */
4259 lpfc_ncmd->dma_sgl = lpfc_ncmd->data;
4260 lpfc_ncmd->dma_phys_sgl = lpfc_ncmd->dma_handle;
4261 lpfc_ncmd->cur_iocbq.context1 = lpfc_ncmd;
4262 spin_lock_init(&lpfc_ncmd->buf_lock);
4264 /* add the nvme buffer to a post list */
4265 list_add_tail(&lpfc_ncmd->list, &post_nblist);
4266 phba->sli4_hba.io_xri_cnt++;
4268 lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
4269 "6114 Allocate %d out of %d requested new NVME "
4270 "buffers\n", bcnt, num_to_alloc);
4272 /* post the list of nvme buffer sgls to port if available */
4273 if (!list_empty(&post_nblist))
4274 num_posted = lpfc_sli4_post_io_sgl_list(
4275 phba, &post_nblist, bcnt);
4283 lpfc_get_wwpn(struct lpfc_hba *phba)
4287 LPFC_MBOXQ_t *mboxq;
4290 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4293 return (uint64_t)-1;
4295 /* First get WWN of HBA instance */
4296 lpfc_read_nv(phba, mboxq);
4297 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4298 if (rc != MBX_SUCCESS) {
4299 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4300 "6019 Mailbox failed , mbxCmd x%x "
4301 "READ_NV, mbxStatus x%x\n",
4302 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4303 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
4304 mempool_free(mboxq, phba->mbox_mem_pool);
4305 return (uint64_t) -1;
4308 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
4309 /* wwn is WWPN of HBA instance */
4310 mempool_free(mboxq, phba->mbox_mem_pool);
4311 if (phba->sli_rev == LPFC_SLI_REV4)
4312 return be64_to_cpu(wwn);
4314 return rol64(wwn, 32);
4318 * lpfc_create_port - Create an FC port
4319 * @phba: pointer to lpfc hba data structure.
4320 * @instance: a unique integer ID to this FC port.
4321 * @dev: pointer to the device data structure.
4323 * This routine creates a FC port for the upper layer protocol. The FC port
4324 * can be created on top of either a physical port or a virtual port provided
4325 * by the HBA. This routine also allocates a SCSI host data structure (shost)
4326 * and associates the FC port created before adding the shost into the SCSI
4330 * @vport - pointer to the virtual N_Port data structure.
4331 * NULL - port create failed.
4334 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
4336 struct lpfc_vport *vport;
4337 struct Scsi_Host *shost = NULL;
4338 struct scsi_host_template *template;
4342 bool use_no_reset_hba = false;
4345 if (lpfc_no_hba_reset_cnt) {
4346 if (phba->sli_rev < LPFC_SLI_REV4 &&
4347 dev == &phba->pcidev->dev) {
4348 /* Reset the port first */
4349 lpfc_sli_brdrestart(phba);
4350 rc = lpfc_sli_chipset_init(phba);
4354 wwn = lpfc_get_wwpn(phba);
4357 for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
4358 if (wwn == lpfc_no_hba_reset[i]) {
4359 lpfc_printf_log(phba, KERN_ERR,
4361 "6020 Setting use_no_reset port=%llx\n",
4363 use_no_reset_hba = true;
4368 /* Seed template for SCSI host registration */
4369 if (dev == &phba->pcidev->dev) {
4370 template = &phba->port_template;
4372 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
4373 /* Seed physical port template */
4374 memcpy(template, &lpfc_template, sizeof(*template));
4376 if (use_no_reset_hba)
4377 /* template is for a no reset SCSI Host */
4378 template->eh_host_reset_handler = NULL;
4380 /* Template for all vports this physical port creates */
4381 memcpy(&phba->vport_template, &lpfc_template,
4383 phba->vport_template.shost_attrs = lpfc_vport_attrs;
4384 phba->vport_template.eh_bus_reset_handler = NULL;
4385 phba->vport_template.eh_host_reset_handler = NULL;
4386 phba->vport_template.vendor_id = 0;
4388 /* Initialize the host templates with updated value */
4389 if (phba->sli_rev == LPFC_SLI_REV4) {
4390 template->sg_tablesize = phba->cfg_scsi_seg_cnt;
4391 phba->vport_template.sg_tablesize =
4392 phba->cfg_scsi_seg_cnt;
4394 template->sg_tablesize = phba->cfg_sg_seg_cnt;
4395 phba->vport_template.sg_tablesize =
4396 phba->cfg_sg_seg_cnt;
4400 /* NVMET is for physical port only */
4401 memcpy(template, &lpfc_template_nvme,
4405 template = &phba->vport_template;
4408 shost = scsi_host_alloc(template, sizeof(struct lpfc_vport));
4412 vport = (struct lpfc_vport *) shost->hostdata;
4414 vport->load_flag |= FC_LOADING;
4415 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4416 vport->fc_rscn_flush = 0;
4417 lpfc_get_vport_cfgparam(vport);
4419 /* Adjust value in vport */
4420 vport->cfg_enable_fc4_type = phba->cfg_enable_fc4_type;
4422 shost->unique_id = instance;
4423 shost->max_id = LPFC_MAX_TARGET;
4424 shost->max_lun = vport->cfg_max_luns;
4425 shost->this_id = -1;
4426 shost->max_cmd_len = 16;
4428 if (phba->sli_rev == LPFC_SLI_REV4) {
4429 if (!phba->cfg_fcp_mq_threshold ||
4430 phba->cfg_fcp_mq_threshold > phba->cfg_hdw_queue)
4431 phba->cfg_fcp_mq_threshold = phba->cfg_hdw_queue;
4433 shost->nr_hw_queues = min_t(int, 2 * num_possible_nodes(),
4434 phba->cfg_fcp_mq_threshold);
4436 shost->dma_boundary =
4437 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
4439 if (phba->cfg_xpsgl && !phba->nvmet_support)
4440 shost->sg_tablesize = LPFC_MAX_SG_TABLESIZE;
4442 shost->sg_tablesize = phba->cfg_scsi_seg_cnt;
4444 /* SLI-3 has a limited number of hardware queues (3),
4445 * thus there is only one for FCP processing.
4447 shost->nr_hw_queues = 1;
4450 * Set initial can_queue value since 0 is no longer supported and
4451 * scsi_add_host will fail. This will be adjusted later based on the
4452 * max xri value determined in hba setup.
4454 shost->can_queue = phba->cfg_hba_queue_depth - 10;
4455 if (dev != &phba->pcidev->dev) {
4456 shost->transportt = lpfc_vport_transport_template;
4457 vport->port_type = LPFC_NPIV_PORT;
4459 shost->transportt = lpfc_transport_template;
4460 vport->port_type = LPFC_PHYSICAL_PORT;
4463 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4464 "9081 CreatePort TMPLATE type %x TBLsize %d "
4466 vport->port_type, shost->sg_tablesize,
4467 phba->cfg_scsi_seg_cnt, phba->cfg_sg_seg_cnt);
4469 /* Initialize all internally managed lists. */
4470 INIT_LIST_HEAD(&vport->fc_nodes);
4471 INIT_LIST_HEAD(&vport->rcv_buffer_list);
4472 spin_lock_init(&vport->work_port_lock);
4474 timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
4476 timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
4478 timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
4480 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4481 lpfc_setup_bg(phba, shost);
4483 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
4487 spin_lock_irq(&phba->port_list_lock);
4488 list_add_tail(&vport->listentry, &phba->port_list);
4489 spin_unlock_irq(&phba->port_list_lock);
4493 scsi_host_put(shost);
4499 * destroy_port - destroy an FC port
4500 * @vport: pointer to an lpfc virtual N_Port data structure.
4502 * This routine destroys a FC port from the upper layer protocol. All the
4503 * resources associated with the port are released.
4506 destroy_port(struct lpfc_vport *vport)
4508 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4509 struct lpfc_hba *phba = vport->phba;
4511 lpfc_debugfs_terminate(vport);
4512 fc_remove_host(shost);
4513 scsi_remove_host(shost);
4515 spin_lock_irq(&phba->port_list_lock);
4516 list_del_init(&vport->listentry);
4517 spin_unlock_irq(&phba->port_list_lock);
4519 lpfc_cleanup(vport);
4524 * lpfc_get_instance - Get a unique integer ID
4526 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4527 * uses the kernel idr facility to perform the task.
4530 * instance - a unique integer ID allocated as the new instance.
4531 * -1 - lpfc get instance failed.
4534 lpfc_get_instance(void)
4538 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4539 return ret < 0 ? -1 : ret;
4543 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4544 * @shost: pointer to SCSI host data structure.
4545 * @time: elapsed time of the scan in jiffies.
4547 * This routine is called by the SCSI layer with a SCSI host to determine
4548 * whether the scan host is finished.
4550 * Note: there is no scan_start function as adapter initialization will have
4551 * asynchronously kicked off the link initialization.
4554 * 0 - SCSI host scan is not over yet.
4555 * 1 - SCSI host scan is over.
4557 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4559 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4560 struct lpfc_hba *phba = vport->phba;
4563 spin_lock_irq(shost->host_lock);
4565 if (vport->load_flag & FC_UNLOADING) {
4569 if (time >= msecs_to_jiffies(30 * 1000)) {
4570 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4571 "0461 Scanning longer than 30 "
4572 "seconds. Continuing initialization\n");
4576 if (time >= msecs_to_jiffies(15 * 1000) &&
4577 phba->link_state <= LPFC_LINK_DOWN) {
4578 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4579 "0465 Link down longer than 15 "
4580 "seconds. Continuing initialization\n");
4585 if (vport->port_state != LPFC_VPORT_READY)
4587 if (vport->num_disc_nodes || vport->fc_prli_sent)
4589 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4591 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4597 spin_unlock_irq(shost->host_lock);
4601 static void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4603 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4604 struct lpfc_hba *phba = vport->phba;
4606 fc_host_supported_speeds(shost) = 0;
4608 * Avoid reporting supported link speed for FCoE as it can't be
4609 * controlled via FCoE.
4611 if (phba->hba_flag & HBA_FCOE_MODE)
4614 if (phba->lmt & LMT_128Gb)
4615 fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4616 if (phba->lmt & LMT_64Gb)
4617 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4618 if (phba->lmt & LMT_32Gb)
4619 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4620 if (phba->lmt & LMT_16Gb)
4621 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4622 if (phba->lmt & LMT_10Gb)
4623 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4624 if (phba->lmt & LMT_8Gb)
4625 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4626 if (phba->lmt & LMT_4Gb)
4627 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4628 if (phba->lmt & LMT_2Gb)
4629 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4630 if (phba->lmt & LMT_1Gb)
4631 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4635 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4636 * @shost: pointer to SCSI host data structure.
4638 * This routine initializes a given SCSI host attributes on a FC port. The
4639 * SCSI host can be either on top of a physical port or a virtual port.
4641 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4643 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4644 struct lpfc_hba *phba = vport->phba;
4646 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
4649 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4650 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4651 fc_host_supported_classes(shost) = FC_COS_CLASS3;
4653 memset(fc_host_supported_fc4s(shost), 0,
4654 sizeof(fc_host_supported_fc4s(shost)));
4655 fc_host_supported_fc4s(shost)[2] = 1;
4656 fc_host_supported_fc4s(shost)[7] = 1;
4658 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4659 sizeof fc_host_symbolic_name(shost));
4661 lpfc_host_supported_speeds_set(shost);
4663 fc_host_maxframe_size(shost) =
4664 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4665 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4667 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4669 /* This value is also unchanging */
4670 memset(fc_host_active_fc4s(shost), 0,
4671 sizeof(fc_host_active_fc4s(shost)));
4672 fc_host_active_fc4s(shost)[2] = 1;
4673 fc_host_active_fc4s(shost)[7] = 1;
4675 fc_host_max_npiv_vports(shost) = phba->max_vpi;
4676 spin_lock_irq(shost->host_lock);
4677 vport->load_flag &= ~FC_LOADING;
4678 spin_unlock_irq(shost->host_lock);
4682 * lpfc_stop_port_s3 - Stop SLI3 device port
4683 * @phba: pointer to lpfc hba data structure.
4685 * This routine is invoked to stop an SLI3 device port, it stops the device
4686 * from generating interrupts and stops the device driver's timers for the
4690 lpfc_stop_port_s3(struct lpfc_hba *phba)
4692 /* Clear all interrupt enable conditions */
4693 writel(0, phba->HCregaddr);
4694 readl(phba->HCregaddr); /* flush */
4695 /* Clear all pending interrupts */
4696 writel(0xffffffff, phba->HAregaddr);
4697 readl(phba->HAregaddr); /* flush */
4699 /* Reset some HBA SLI setup states */
4700 lpfc_stop_hba_timers(phba);
4701 phba->pport->work_port_events = 0;
4705 * lpfc_stop_port_s4 - Stop SLI4 device port
4706 * @phba: pointer to lpfc hba data structure.
4708 * This routine is invoked to stop an SLI4 device port, it stops the device
4709 * from generating interrupts and stops the device driver's timers for the
4713 lpfc_stop_port_s4(struct lpfc_hba *phba)
4715 /* Reset some HBA SLI4 setup states */
4716 lpfc_stop_hba_timers(phba);
4718 phba->pport->work_port_events = 0;
4719 phba->sli4_hba.intr_enable = 0;
4723 * lpfc_stop_port - Wrapper function for stopping hba port
4724 * @phba: Pointer to HBA context object.
4726 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4727 * the API jump table function pointer from the lpfc_hba struct.
4730 lpfc_stop_port(struct lpfc_hba *phba)
4732 phba->lpfc_stop_port(phba);
4735 flush_workqueue(phba->wq);
4739 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4740 * @phba: Pointer to hba for which this call is being executed.
4742 * This routine starts the timer waiting for the FCF rediscovery to complete.
4745 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4747 unsigned long fcf_redisc_wait_tmo =
4748 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4749 /* Start fcf rediscovery wait period timer */
4750 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4751 spin_lock_irq(&phba->hbalock);
4752 /* Allow action to new fcf asynchronous event */
4753 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4754 /* Mark the FCF rediscovery pending state */
4755 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4756 spin_unlock_irq(&phba->hbalock);
4760 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4761 * @t: Timer context used to obtain the pointer to lpfc hba data structure.
4763 * This routine is invoked when waiting for FCF table rediscover has been
4764 * timed out. If new FCF record(s) has (have) been discovered during the
4765 * wait period, a new FCF event shall be added to the FCOE async event
4766 * list, and then worker thread shall be waked up for processing from the
4767 * worker thread context.
4770 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
4772 struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
4774 /* Don't send FCF rediscovery event if timer cancelled */
4775 spin_lock_irq(&phba->hbalock);
4776 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4777 spin_unlock_irq(&phba->hbalock);
4780 /* Clear FCF rediscovery timer pending flag */
4781 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4782 /* FCF rediscovery event to worker thread */
4783 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4784 spin_unlock_irq(&phba->hbalock);
4785 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4786 "2776 FCF rediscover quiescent timer expired\n");
4787 /* wake up worker thread */
4788 lpfc_worker_wake_up(phba);
4792 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4793 * @phba: pointer to lpfc hba data structure.
4794 * @acqe_link: pointer to the async link completion queue entry.
4796 * This routine is to parse the SLI4 link-attention link fault code.
4799 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4800 struct lpfc_acqe_link *acqe_link)
4802 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4803 case LPFC_ASYNC_LINK_FAULT_NONE:
4804 case LPFC_ASYNC_LINK_FAULT_LOCAL:
4805 case LPFC_ASYNC_LINK_FAULT_REMOTE:
4806 case LPFC_ASYNC_LINK_FAULT_LR_LRR:
4809 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4810 "0398 Unknown link fault code: x%x\n",
4811 bf_get(lpfc_acqe_link_fault, acqe_link));
4817 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4818 * @phba: pointer to lpfc hba data structure.
4819 * @acqe_link: pointer to the async link completion queue entry.
4821 * This routine is to parse the SLI4 link attention type and translate it
4822 * into the base driver's link attention type coding.
4824 * Return: Link attention type in terms of base driver's coding.
4827 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4828 struct lpfc_acqe_link *acqe_link)
4832 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4833 case LPFC_ASYNC_LINK_STATUS_DOWN:
4834 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4835 att_type = LPFC_ATT_LINK_DOWN;
4837 case LPFC_ASYNC_LINK_STATUS_UP:
4838 /* Ignore physical link up events - wait for logical link up */
4839 att_type = LPFC_ATT_RESERVED;
4841 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4842 att_type = LPFC_ATT_LINK_UP;
4845 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4846 "0399 Invalid link attention type: x%x\n",
4847 bf_get(lpfc_acqe_link_status, acqe_link));
4848 att_type = LPFC_ATT_RESERVED;
4855 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4856 * @phba: pointer to lpfc hba data structure.
4858 * This routine is to get an SLI3 FC port's link speed in Mbps.
4860 * Return: link speed in terms of Mbps.
4863 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4865 uint32_t link_speed;
4867 if (!lpfc_is_link_up(phba))
4870 if (phba->sli_rev <= LPFC_SLI_REV3) {
4871 switch (phba->fc_linkspeed) {
4872 case LPFC_LINK_SPEED_1GHZ:
4875 case LPFC_LINK_SPEED_2GHZ:
4878 case LPFC_LINK_SPEED_4GHZ:
4881 case LPFC_LINK_SPEED_8GHZ:
4884 case LPFC_LINK_SPEED_10GHZ:
4887 case LPFC_LINK_SPEED_16GHZ:
4894 if (phba->sli4_hba.link_state.logical_speed)
4896 phba->sli4_hba.link_state.logical_speed;
4898 link_speed = phba->sli4_hba.link_state.speed;
4904 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4905 * @phba: pointer to lpfc hba data structure.
4906 * @evt_code: asynchronous event code.
4907 * @speed_code: asynchronous event link speed code.
4909 * This routine is to parse the giving SLI4 async event link speed code into
4910 * value of Mbps for the link speed.
4912 * Return: link speed in terms of Mbps.
4915 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4918 uint32_t port_speed;
4921 case LPFC_TRAILER_CODE_LINK:
4922 switch (speed_code) {
4923 case LPFC_ASYNC_LINK_SPEED_ZERO:
4926 case LPFC_ASYNC_LINK_SPEED_10MBPS:
4929 case LPFC_ASYNC_LINK_SPEED_100MBPS:
4932 case LPFC_ASYNC_LINK_SPEED_1GBPS:
4935 case LPFC_ASYNC_LINK_SPEED_10GBPS:
4938 case LPFC_ASYNC_LINK_SPEED_20GBPS:
4941 case LPFC_ASYNC_LINK_SPEED_25GBPS:
4944 case LPFC_ASYNC_LINK_SPEED_40GBPS:
4947 case LPFC_ASYNC_LINK_SPEED_100GBPS:
4948 port_speed = 100000;
4954 case LPFC_TRAILER_CODE_FC:
4955 switch (speed_code) {
4956 case LPFC_FC_LA_SPEED_UNKNOWN:
4959 case LPFC_FC_LA_SPEED_1G:
4962 case LPFC_FC_LA_SPEED_2G:
4965 case LPFC_FC_LA_SPEED_4G:
4968 case LPFC_FC_LA_SPEED_8G:
4971 case LPFC_FC_LA_SPEED_10G:
4974 case LPFC_FC_LA_SPEED_16G:
4977 case LPFC_FC_LA_SPEED_32G:
4980 case LPFC_FC_LA_SPEED_64G:
4983 case LPFC_FC_LA_SPEED_128G:
4984 port_speed = 128000;
4997 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4998 * @phba: pointer to lpfc hba data structure.
4999 * @acqe_link: pointer to the async link completion queue entry.
5001 * This routine is to handle the SLI4 asynchronous FCoE link event.
5004 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
5005 struct lpfc_acqe_link *acqe_link)
5007 struct lpfc_dmabuf *mp;
5010 struct lpfc_mbx_read_top *la;
5014 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
5015 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
5017 phba->fcoe_eventtag = acqe_link->event_tag;
5018 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5020 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5021 "0395 The mboxq allocation failed\n");
5024 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5026 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5027 "0396 The lpfc_dmabuf allocation failed\n");
5030 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
5032 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5033 "0397 The mbuf allocation failed\n");
5034 goto out_free_dmabuf;
5037 /* Cleanup any outstanding ELS commands */
5038 lpfc_els_flush_all_cmd(phba);
5040 /* Block ELS IOCBs until we have done process link event */
5041 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5043 /* Update link event statistics */
5044 phba->sli.slistat.link_event++;
5046 /* Create lpfc_handle_latt mailbox command from link ACQE */
5047 lpfc_read_topology(phba, pmb, mp);
5048 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5049 pmb->vport = phba->pport;
5051 /* Keep the link status for extra SLI4 state machine reference */
5052 phba->sli4_hba.link_state.speed =
5053 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
5054 bf_get(lpfc_acqe_link_speed, acqe_link));
5055 phba->sli4_hba.link_state.duplex =
5056 bf_get(lpfc_acqe_link_duplex, acqe_link);
5057 phba->sli4_hba.link_state.status =
5058 bf_get(lpfc_acqe_link_status, acqe_link);
5059 phba->sli4_hba.link_state.type =
5060 bf_get(lpfc_acqe_link_type, acqe_link);
5061 phba->sli4_hba.link_state.number =
5062 bf_get(lpfc_acqe_link_number, acqe_link);
5063 phba->sli4_hba.link_state.fault =
5064 bf_get(lpfc_acqe_link_fault, acqe_link);
5065 phba->sli4_hba.link_state.logical_speed =
5066 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
5068 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5069 "2900 Async FC/FCoE Link event - Speed:%dGBit "
5070 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
5071 "Logical speed:%dMbps Fault:%d\n",
5072 phba->sli4_hba.link_state.speed,
5073 phba->sli4_hba.link_state.topology,
5074 phba->sli4_hba.link_state.status,
5075 phba->sli4_hba.link_state.type,
5076 phba->sli4_hba.link_state.number,
5077 phba->sli4_hba.link_state.logical_speed,
5078 phba->sli4_hba.link_state.fault);
5080 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
5081 * topology info. Note: Optional for non FC-AL ports.
5083 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
5084 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5085 if (rc == MBX_NOT_FINISHED)
5086 goto out_free_dmabuf;
5090 * For FCoE Mode: fill in all the topology information we need and call
5091 * the READ_TOPOLOGY completion routine to continue without actually
5092 * sending the READ_TOPOLOGY mailbox command to the port.
5094 /* Initialize completion status */
5096 mb->mbxStatus = MBX_SUCCESS;
5098 /* Parse port fault information field */
5099 lpfc_sli4_parse_latt_fault(phba, acqe_link);
5101 /* Parse and translate link attention fields */
5102 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
5103 la->eventTag = acqe_link->event_tag;
5104 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
5105 bf_set(lpfc_mbx_read_top_link_spd, la,
5106 (bf_get(lpfc_acqe_link_speed, acqe_link)));
5108 /* Fake the the following irrelvant fields */
5109 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
5110 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
5111 bf_set(lpfc_mbx_read_top_il, la, 0);
5112 bf_set(lpfc_mbx_read_top_pb, la, 0);
5113 bf_set(lpfc_mbx_read_top_fa, la, 0);
5114 bf_set(lpfc_mbx_read_top_mm, la, 0);
5116 /* Invoke the lpfc_handle_latt mailbox command callback function */
5117 lpfc_mbx_cmpl_read_topology(phba, pmb);
5124 mempool_free(pmb, phba->mbox_mem_pool);
5128 * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
5130 * @phba: pointer to lpfc hba data structure.
5131 * @speed_code: asynchronous event link speed code.
5133 * This routine is to parse the giving SLI4 async event link speed code into
5134 * value of Read topology link speed.
5136 * Return: link speed in terms of Read topology.
5139 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
5143 switch (speed_code) {
5144 case LPFC_FC_LA_SPEED_1G:
5145 port_speed = LPFC_LINK_SPEED_1GHZ;
5147 case LPFC_FC_LA_SPEED_2G:
5148 port_speed = LPFC_LINK_SPEED_2GHZ;
5150 case LPFC_FC_LA_SPEED_4G:
5151 port_speed = LPFC_LINK_SPEED_4GHZ;
5153 case LPFC_FC_LA_SPEED_8G:
5154 port_speed = LPFC_LINK_SPEED_8GHZ;
5156 case LPFC_FC_LA_SPEED_16G:
5157 port_speed = LPFC_LINK_SPEED_16GHZ;
5159 case LPFC_FC_LA_SPEED_32G:
5160 port_speed = LPFC_LINK_SPEED_32GHZ;
5162 case LPFC_FC_LA_SPEED_64G:
5163 port_speed = LPFC_LINK_SPEED_64GHZ;
5165 case LPFC_FC_LA_SPEED_128G:
5166 port_speed = LPFC_LINK_SPEED_128GHZ;
5168 case LPFC_FC_LA_SPEED_256G:
5169 port_speed = LPFC_LINK_SPEED_256GHZ;
5179 #define trunk_link_status(__idx)\
5180 bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5181 ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
5182 "Link up" : "Link down") : "NA"
5183 /* Did port __idx reported an error */
5184 #define trunk_port_fault(__idx)\
5185 bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5186 (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
5189 lpfc_update_trunk_link_status(struct lpfc_hba *phba,
5190 struct lpfc_acqe_fc_la *acqe_fc)
5192 uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
5193 uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
5195 phba->sli4_hba.link_state.speed =
5196 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5197 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5199 phba->sli4_hba.link_state.logical_speed =
5200 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5201 /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
5202 phba->fc_linkspeed =
5203 lpfc_async_link_speed_to_read_top(
5205 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5207 if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
5208 phba->trunk_link.link0.state =
5209 bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
5210 ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5211 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
5213 if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
5214 phba->trunk_link.link1.state =
5215 bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
5216 ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5217 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
5219 if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
5220 phba->trunk_link.link2.state =
5221 bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
5222 ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5223 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
5225 if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
5226 phba->trunk_link.link3.state =
5227 bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
5228 ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5229 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
5232 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5233 "2910 Async FC Trunking Event - Speed:%d\n"
5234 "\tLogical speed:%d "
5235 "port0: %s port1: %s port2: %s port3: %s\n",
5236 phba->sli4_hba.link_state.speed,
5237 phba->sli4_hba.link_state.logical_speed,
5238 trunk_link_status(0), trunk_link_status(1),
5239 trunk_link_status(2), trunk_link_status(3));
5242 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5243 "3202 trunk error:0x%x (%s) seen on port0:%s "
5245 * SLI-4: We have only 0xA error codes
5246 * defined as of now. print an appropriate
5247 * message in case driver needs to be updated.
5249 "port1:%s port2:%s port3:%s\n", err, err > 0xA ?
5250 "UNDEFINED. update driver." : trunk_errmsg[err],
5251 trunk_port_fault(0), trunk_port_fault(1),
5252 trunk_port_fault(2), trunk_port_fault(3));
5257 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
5258 * @phba: pointer to lpfc hba data structure.
5259 * @acqe_fc: pointer to the async fc completion queue entry.
5261 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
5262 * that the event was received and then issue a read_topology mailbox command so
5263 * that the rest of the driver will treat it the same as SLI3.
5266 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
5268 struct lpfc_dmabuf *mp;
5271 struct lpfc_mbx_read_top *la;
5274 if (bf_get(lpfc_trailer_type, acqe_fc) !=
5275 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
5276 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5277 "2895 Non FC link Event detected.(%d)\n",
5278 bf_get(lpfc_trailer_type, acqe_fc));
5282 if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5283 LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
5284 lpfc_update_trunk_link_status(phba, acqe_fc);
5288 /* Keep the link status for extra SLI4 state machine reference */
5289 phba->sli4_hba.link_state.speed =
5290 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5291 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5292 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
5293 phba->sli4_hba.link_state.topology =
5294 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
5295 phba->sli4_hba.link_state.status =
5296 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
5297 phba->sli4_hba.link_state.type =
5298 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
5299 phba->sli4_hba.link_state.number =
5300 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
5301 phba->sli4_hba.link_state.fault =
5302 bf_get(lpfc_acqe_link_fault, acqe_fc);
5304 if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5305 LPFC_FC_LA_TYPE_LINK_DOWN)
5306 phba->sli4_hba.link_state.logical_speed = 0;
5307 else if (!phba->sli4_hba.conf_trunk)
5308 phba->sli4_hba.link_state.logical_speed =
5309 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5311 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5312 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
5313 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
5314 "%dMbps Fault:%d\n",
5315 phba->sli4_hba.link_state.speed,
5316 phba->sli4_hba.link_state.topology,
5317 phba->sli4_hba.link_state.status,
5318 phba->sli4_hba.link_state.type,
5319 phba->sli4_hba.link_state.number,
5320 phba->sli4_hba.link_state.logical_speed,
5321 phba->sli4_hba.link_state.fault);
5322 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5324 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5325 "2897 The mboxq allocation failed\n");
5328 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5330 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5331 "2898 The lpfc_dmabuf allocation failed\n");
5334 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
5336 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5337 "2899 The mbuf allocation failed\n");
5338 goto out_free_dmabuf;
5341 /* Cleanup any outstanding ELS commands */
5342 lpfc_els_flush_all_cmd(phba);
5344 /* Block ELS IOCBs until we have done process link event */
5345 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5347 /* Update link event statistics */
5348 phba->sli.slistat.link_event++;
5350 /* Create lpfc_handle_latt mailbox command from link ACQE */
5351 lpfc_read_topology(phba, pmb, mp);
5352 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5353 pmb->vport = phba->pport;
5355 if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
5356 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
5358 switch (phba->sli4_hba.link_state.status) {
5359 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
5360 phba->link_flag |= LS_MDS_LINK_DOWN;
5362 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
5363 phba->link_flag |= LS_MDS_LOOPBACK;
5369 /* Initialize completion status */
5371 mb->mbxStatus = MBX_SUCCESS;
5373 /* Parse port fault information field */
5374 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
5376 /* Parse and translate link attention fields */
5377 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
5378 la->eventTag = acqe_fc->event_tag;
5380 if (phba->sli4_hba.link_state.status ==
5381 LPFC_FC_LA_TYPE_UNEXP_WWPN) {
5382 bf_set(lpfc_mbx_read_top_att_type, la,
5383 LPFC_FC_LA_TYPE_UNEXP_WWPN);
5385 bf_set(lpfc_mbx_read_top_att_type, la,
5386 LPFC_FC_LA_TYPE_LINK_DOWN);
5388 /* Invoke the mailbox command callback function */
5389 lpfc_mbx_cmpl_read_topology(phba, pmb);
5394 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5395 if (rc == MBX_NOT_FINISHED)
5396 goto out_free_dmabuf;
5402 mempool_free(pmb, phba->mbox_mem_pool);
5406 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
5407 * @phba: pointer to lpfc hba data structure.
5408 * @acqe_sli: pointer to the async SLI completion queue entry.
5410 * This routine is to handle the SLI4 asynchronous SLI events.
5413 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
5419 uint8_t operational = 0;
5420 struct temp_event temp_event_data;
5421 struct lpfc_acqe_misconfigured_event *misconfigured;
5422 struct Scsi_Host *shost;
5423 struct lpfc_vport **vports;
5426 evt_type = bf_get(lpfc_trailer_type, acqe_sli);
5428 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5429 "2901 Async SLI event - Type:%d, Event Data: x%08x "
5430 "x%08x x%08x x%08x\n", evt_type,
5431 acqe_sli->event_data1, acqe_sli->event_data2,
5432 acqe_sli->reserved, acqe_sli->trailer);
5434 port_name = phba->Port[0];
5435 if (port_name == 0x00)
5436 port_name = '?'; /* get port name is empty */
5439 case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
5440 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5441 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
5442 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5444 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5445 "3190 Over Temperature:%d Celsius- Port Name %c\n",
5446 acqe_sli->event_data1, port_name);
5448 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
5449 shost = lpfc_shost_from_vport(phba->pport);
5450 fc_host_post_vendor_event(shost, fc_get_event_number(),
5451 sizeof(temp_event_data),
5452 (char *)&temp_event_data,
5453 SCSI_NL_VID_TYPE_PCI
5454 | PCI_VENDOR_ID_EMULEX);
5456 case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
5457 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5458 temp_event_data.event_code = LPFC_NORMAL_TEMP;
5459 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5461 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5462 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
5463 acqe_sli->event_data1, port_name);
5465 shost = lpfc_shost_from_vport(phba->pport);
5466 fc_host_post_vendor_event(shost, fc_get_event_number(),
5467 sizeof(temp_event_data),
5468 (char *)&temp_event_data,
5469 SCSI_NL_VID_TYPE_PCI
5470 | PCI_VENDOR_ID_EMULEX);
5472 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
5473 misconfigured = (struct lpfc_acqe_misconfigured_event *)
5474 &acqe_sli->event_data1;
5476 /* fetch the status for this port */
5477 switch (phba->sli4_hba.lnk_info.lnk_no) {
5478 case LPFC_LINK_NUMBER_0:
5479 status = bf_get(lpfc_sli_misconfigured_port0_state,
5480 &misconfigured->theEvent);
5481 operational = bf_get(lpfc_sli_misconfigured_port0_op,
5482 &misconfigured->theEvent);
5484 case LPFC_LINK_NUMBER_1:
5485 status = bf_get(lpfc_sli_misconfigured_port1_state,
5486 &misconfigured->theEvent);
5487 operational = bf_get(lpfc_sli_misconfigured_port1_op,
5488 &misconfigured->theEvent);
5490 case LPFC_LINK_NUMBER_2:
5491 status = bf_get(lpfc_sli_misconfigured_port2_state,
5492 &misconfigured->theEvent);
5493 operational = bf_get(lpfc_sli_misconfigured_port2_op,
5494 &misconfigured->theEvent);
5496 case LPFC_LINK_NUMBER_3:
5497 status = bf_get(lpfc_sli_misconfigured_port3_state,
5498 &misconfigured->theEvent);
5499 operational = bf_get(lpfc_sli_misconfigured_port3_op,
5500 &misconfigured->theEvent);
5503 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5505 "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
5506 "event: Invalid link %d",
5507 phba->sli4_hba.lnk_info.lnk_no);
5511 /* Skip if optic state unchanged */
5512 if (phba->sli4_hba.lnk_info.optic_state == status)
5516 case LPFC_SLI_EVENT_STATUS_VALID:
5517 sprintf(message, "Physical Link is functional");
5519 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
5520 sprintf(message, "Optics faulted/incorrectly "
5521 "installed/not installed - Reseat optics, "
5522 "if issue not resolved, replace.");
5524 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
5526 "Optics of two types installed - Remove one "
5527 "optic or install matching pair of optics.");
5529 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
5530 sprintf(message, "Incompatible optics - Replace with "
5531 "compatible optics for card to function.");
5533 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
5534 sprintf(message, "Unqualified optics - Replace with "
5535 "Avago optics for Warranty and Technical "
5536 "Support - Link is%s operational",
5537 (operational) ? " not" : "");
5539 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
5540 sprintf(message, "Uncertified optics - Replace with "
5541 "Avago-certified optics to enable link "
5542 "operation - Link is%s operational",
5543 (operational) ? " not" : "");
5546 /* firmware is reporting a status we don't know about */
5547 sprintf(message, "Unknown event status x%02x", status);
5551 /* Issue READ_CONFIG mbox command to refresh supported speeds */
5552 rc = lpfc_sli4_read_config(phba);
5555 lpfc_printf_log(phba, KERN_ERR,
5557 "3194 Unable to retrieve supported "
5558 "speeds, rc = 0x%x\n", rc);
5560 vports = lpfc_create_vport_work_array(phba);
5561 if (vports != NULL) {
5562 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5564 shost = lpfc_shost_from_vport(vports[i]);
5565 lpfc_host_supported_speeds_set(shost);
5568 lpfc_destroy_vport_work_array(phba, vports);
5570 phba->sli4_hba.lnk_info.optic_state = status;
5571 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5572 "3176 Port Name %c %s\n", port_name, message);
5574 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
5575 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5576 "3192 Remote DPort Test Initiated - "
5577 "Event Data1:x%08x Event Data2: x%08x\n",
5578 acqe_sli->event_data1, acqe_sli->event_data2);
5580 case LPFC_SLI_EVENT_TYPE_MISCONF_FAWWN:
5581 /* Misconfigured WWN. Reports that the SLI Port is configured
5582 * to use FA-WWN, but the attached device doesn’t support it.
5583 * No driver action is required.
5584 * Event Data1 - N.A, Event Data2 - N.A
5586 lpfc_log_msg(phba, KERN_WARNING, LOG_SLI,
5587 "2699 Misconfigured FA-WWN - Attached device does "
5588 "not support FA-WWN\n");
5590 case LPFC_SLI_EVENT_TYPE_EEPROM_FAILURE:
5591 /* EEPROM failure. No driver action is required */
5592 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5593 "2518 EEPROM failure - "
5594 "Event Data1: x%08x Event Data2: x%08x\n",
5595 acqe_sli->event_data1, acqe_sli->event_data2);
5598 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5599 "3193 Unrecognized SLI event, type: 0x%x",
5606 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
5607 * @vport: pointer to vport data structure.
5609 * This routine is to perform Clear Virtual Link (CVL) on a vport in
5610 * response to a CVL event.
5612 * Return the pointer to the ndlp with the vport if successful, otherwise
5615 static struct lpfc_nodelist *
5616 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
5618 struct lpfc_nodelist *ndlp;
5619 struct Scsi_Host *shost;
5620 struct lpfc_hba *phba;
5627 ndlp = lpfc_findnode_did(vport, Fabric_DID);
5629 /* Cannot find existing Fabric ndlp, so allocate a new one */
5630 ndlp = lpfc_nlp_init(vport, Fabric_DID);
5633 /* Set the node type */
5634 ndlp->nlp_type |= NLP_FABRIC;
5635 /* Put ndlp onto node list */
5636 lpfc_enqueue_node(vport, ndlp);
5638 if ((phba->pport->port_state < LPFC_FLOGI) &&
5639 (phba->pport->port_state != LPFC_VPORT_FAILED))
5641 /* If virtual link is not yet instantiated ignore CVL */
5642 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
5643 && (vport->port_state != LPFC_VPORT_FAILED))
5645 shost = lpfc_shost_from_vport(vport);
5648 lpfc_linkdown_port(vport);
5649 lpfc_cleanup_pending_mbox(vport);
5650 spin_lock_irq(shost->host_lock);
5651 vport->fc_flag |= FC_VPORT_CVL_RCVD;
5652 spin_unlock_irq(shost->host_lock);
5658 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
5659 * @phba: pointer to lpfc hba data structure.
5661 * This routine is to perform Clear Virtual Link (CVL) on all vports in
5662 * response to a FCF dead event.
5665 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
5667 struct lpfc_vport **vports;
5670 vports = lpfc_create_vport_work_array(phba);
5672 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
5673 lpfc_sli4_perform_vport_cvl(vports[i]);
5674 lpfc_destroy_vport_work_array(phba, vports);
5678 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
5679 * @phba: pointer to lpfc hba data structure.
5680 * @acqe_fip: pointer to the async fcoe completion queue entry.
5682 * This routine is to handle the SLI4 asynchronous fcoe event.
5685 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
5686 struct lpfc_acqe_fip *acqe_fip)
5688 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
5690 struct lpfc_vport *vport;
5691 struct lpfc_nodelist *ndlp;
5692 int active_vlink_present;
5693 struct lpfc_vport **vports;
5696 phba->fc_eventTag = acqe_fip->event_tag;
5697 phba->fcoe_eventtag = acqe_fip->event_tag;
5698 switch (event_type) {
5699 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
5700 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
5701 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
5702 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5703 "2546 New FCF event, evt_tag:x%x, "
5705 acqe_fip->event_tag,
5708 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
5710 "2788 FCF param modified event, "
5711 "evt_tag:x%x, index:x%x\n",
5712 acqe_fip->event_tag,
5714 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5716 * During period of FCF discovery, read the FCF
5717 * table record indexed by the event to update
5718 * FCF roundrobin failover eligible FCF bmask.
5720 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5722 "2779 Read FCF (x%x) for updating "
5723 "roundrobin FCF failover bmask\n",
5725 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
5728 /* If the FCF discovery is in progress, do nothing. */
5729 spin_lock_irq(&phba->hbalock);
5730 if (phba->hba_flag & FCF_TS_INPROG) {
5731 spin_unlock_irq(&phba->hbalock);
5734 /* If fast FCF failover rescan event is pending, do nothing */
5735 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
5736 spin_unlock_irq(&phba->hbalock);
5740 /* If the FCF has been in discovered state, do nothing. */
5741 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
5742 spin_unlock_irq(&phba->hbalock);
5745 spin_unlock_irq(&phba->hbalock);
5747 /* Otherwise, scan the entire FCF table and re-discover SAN */
5748 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5749 "2770 Start FCF table scan per async FCF "
5750 "event, evt_tag:x%x, index:x%x\n",
5751 acqe_fip->event_tag, acqe_fip->index);
5752 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
5753 LPFC_FCOE_FCF_GET_FIRST);
5755 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5756 "2547 Issue FCF scan read FCF mailbox "
5757 "command failed (x%x)\n", rc);
5760 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
5761 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5762 "2548 FCF Table full count 0x%x tag 0x%x\n",
5763 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
5764 acqe_fip->event_tag);
5767 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
5768 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5769 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5770 "2549 FCF (x%x) disconnected from network, "
5771 "tag:x%x\n", acqe_fip->index,
5772 acqe_fip->event_tag);
5774 * If we are in the middle of FCF failover process, clear
5775 * the corresponding FCF bit in the roundrobin bitmap.
5777 spin_lock_irq(&phba->hbalock);
5778 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
5779 (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
5780 spin_unlock_irq(&phba->hbalock);
5781 /* Update FLOGI FCF failover eligible FCF bmask */
5782 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
5785 spin_unlock_irq(&phba->hbalock);
5787 /* If the event is not for currently used fcf do nothing */
5788 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
5792 * Otherwise, request the port to rediscover the entire FCF
5793 * table for a fast recovery from case that the current FCF
5794 * is no longer valid as we are not in the middle of FCF
5795 * failover process already.
5797 spin_lock_irq(&phba->hbalock);
5798 /* Mark the fast failover process in progress */
5799 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
5800 spin_unlock_irq(&phba->hbalock);
5802 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5803 "2771 Start FCF fast failover process due to "
5804 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
5805 "\n", acqe_fip->event_tag, acqe_fip->index);
5806 rc = lpfc_sli4_redisc_fcf_table(phba);
5808 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5810 "2772 Issue FCF rediscover mailbox "
5811 "command failed, fail through to FCF "
5813 spin_lock_irq(&phba->hbalock);
5814 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
5815 spin_unlock_irq(&phba->hbalock);
5817 * Last resort will fail over by treating this
5818 * as a link down to FCF registration.
5820 lpfc_sli4_fcf_dead_failthrough(phba);
5822 /* Reset FCF roundrobin bmask for new discovery */
5823 lpfc_sli4_clear_fcf_rr_bmask(phba);
5825 * Handling fast FCF failover to a DEAD FCF event is
5826 * considered equalivant to receiving CVL to all vports.
5828 lpfc_sli4_perform_all_vport_cvl(phba);
5831 case LPFC_FIP_EVENT_TYPE_CVL:
5832 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5833 lpfc_printf_log(phba, KERN_ERR,
5835 "2718 Clear Virtual Link Received for VPI 0x%x"
5836 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
5838 vport = lpfc_find_vport_by_vpid(phba,
5840 ndlp = lpfc_sli4_perform_vport_cvl(vport);
5843 active_vlink_present = 0;
5845 vports = lpfc_create_vport_work_array(phba);
5847 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5849 if ((!(vports[i]->fc_flag &
5850 FC_VPORT_CVL_RCVD)) &&
5851 (vports[i]->port_state > LPFC_FDISC)) {
5852 active_vlink_present = 1;
5856 lpfc_destroy_vport_work_array(phba, vports);
5860 * Don't re-instantiate if vport is marked for deletion.
5861 * If we are here first then vport_delete is going to wait
5862 * for discovery to complete.
5864 if (!(vport->load_flag & FC_UNLOADING) &&
5865 active_vlink_present) {
5867 * If there are other active VLinks present,
5868 * re-instantiate the Vlink using FDISC.
5870 mod_timer(&ndlp->nlp_delayfunc,
5871 jiffies + msecs_to_jiffies(1000));
5872 spin_lock_irq(&ndlp->lock);
5873 ndlp->nlp_flag |= NLP_DELAY_TMO;
5874 spin_unlock_irq(&ndlp->lock);
5875 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5876 vport->port_state = LPFC_FDISC;
5879 * Otherwise, we request port to rediscover
5880 * the entire FCF table for a fast recovery
5881 * from possible case that the current FCF
5882 * is no longer valid if we are not already
5883 * in the FCF failover process.
5885 spin_lock_irq(&phba->hbalock);
5886 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5887 spin_unlock_irq(&phba->hbalock);
5890 /* Mark the fast failover process in progress */
5891 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5892 spin_unlock_irq(&phba->hbalock);
5893 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5895 "2773 Start FCF failover per CVL, "
5896 "evt_tag:x%x\n", acqe_fip->event_tag);
5897 rc = lpfc_sli4_redisc_fcf_table(phba);
5899 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5901 "2774 Issue FCF rediscover "
5902 "mailbox command failed, "
5903 "through to CVL event\n");
5904 spin_lock_irq(&phba->hbalock);
5905 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5906 spin_unlock_irq(&phba->hbalock);
5908 * Last resort will be re-try on the
5909 * the current registered FCF entry.
5911 lpfc_retry_pport_discovery(phba);
5914 * Reset FCF roundrobin bmask for new
5917 lpfc_sli4_clear_fcf_rr_bmask(phba);
5921 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5922 "0288 Unknown FCoE event type 0x%x event tag "
5923 "0x%x\n", event_type, acqe_fip->event_tag);
5929 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5930 * @phba: pointer to lpfc hba data structure.
5931 * @acqe_dcbx: pointer to the async dcbx completion queue entry.
5933 * This routine is to handle the SLI4 asynchronous dcbx event.
5936 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5937 struct lpfc_acqe_dcbx *acqe_dcbx)
5939 phba->fc_eventTag = acqe_dcbx->event_tag;
5940 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5941 "0290 The SLI4 DCBX asynchronous event is not "
5946 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5947 * @phba: pointer to lpfc hba data structure.
5948 * @acqe_grp5: pointer to the async grp5 completion queue entry.
5950 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5951 * is an asynchronous notified of a logical link speed change. The Port
5952 * reports the logical link speed in units of 10Mbps.
5955 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5956 struct lpfc_acqe_grp5 *acqe_grp5)
5958 uint16_t prev_ll_spd;
5960 phba->fc_eventTag = acqe_grp5->event_tag;
5961 phba->fcoe_eventtag = acqe_grp5->event_tag;
5962 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5963 phba->sli4_hba.link_state.logical_speed =
5964 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5965 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5966 "2789 GRP5 Async Event: Updating logical link speed "
5967 "from %dMbps to %dMbps\n", prev_ll_spd,
5968 phba->sli4_hba.link_state.logical_speed);
5972 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5973 * @phba: pointer to lpfc hba data structure.
5975 * This routine is invoked by the worker thread to process all the pending
5976 * SLI4 asynchronous events.
5978 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5980 struct lpfc_cq_event *cq_event;
5981 unsigned long iflags;
5983 /* First, declare the async event has been handled */
5984 spin_lock_irqsave(&phba->hbalock, iflags);
5985 phba->hba_flag &= ~ASYNC_EVENT;
5986 spin_unlock_irqrestore(&phba->hbalock, iflags);
5988 /* Now, handle all the async events */
5989 spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
5990 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5991 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5992 cq_event, struct lpfc_cq_event, list);
5993 spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock,
5996 /* Process the asynchronous event */
5997 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5998 case LPFC_TRAILER_CODE_LINK:
5999 lpfc_sli4_async_link_evt(phba,
6000 &cq_event->cqe.acqe_link);
6002 case LPFC_TRAILER_CODE_FCOE:
6003 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
6005 case LPFC_TRAILER_CODE_DCBX:
6006 lpfc_sli4_async_dcbx_evt(phba,
6007 &cq_event->cqe.acqe_dcbx);
6009 case LPFC_TRAILER_CODE_GRP5:
6010 lpfc_sli4_async_grp5_evt(phba,
6011 &cq_event->cqe.acqe_grp5);
6013 case LPFC_TRAILER_CODE_FC:
6014 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
6016 case LPFC_TRAILER_CODE_SLI:
6017 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
6020 lpfc_printf_log(phba, KERN_ERR,
6022 "1804 Invalid asynchronous event code: "
6023 "x%x\n", bf_get(lpfc_trailer_code,
6024 &cq_event->cqe.mcqe_cmpl));
6028 /* Free the completion event processed to the free pool */
6029 lpfc_sli4_cq_event_release(phba, cq_event);
6030 spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
6032 spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
6036 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
6037 * @phba: pointer to lpfc hba data structure.
6039 * This routine is invoked by the worker thread to process FCF table
6040 * rediscovery pending completion event.
6042 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
6046 spin_lock_irq(&phba->hbalock);
6047 /* Clear FCF rediscovery timeout event */
6048 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
6049 /* Clear driver fast failover FCF record flag */
6050 phba->fcf.failover_rec.flag = 0;
6051 /* Set state for FCF fast failover */
6052 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
6053 spin_unlock_irq(&phba->hbalock);
6055 /* Scan FCF table from the first entry to re-discover SAN */
6056 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6057 "2777 Start post-quiescent FCF table scan\n");
6058 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
6060 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6061 "2747 Issue FCF scan read FCF mailbox "
6062 "command failed 0x%x\n", rc);
6066 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
6067 * @phba: pointer to lpfc hba data structure.
6068 * @dev_grp: The HBA PCI-Device group number.
6070 * This routine is invoked to set up the per HBA PCI-Device group function
6071 * API jump table entries.
6073 * Return: 0 if success, otherwise -ENODEV
6076 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6080 /* Set up lpfc PCI-device group */
6081 phba->pci_dev_grp = dev_grp;
6083 /* The LPFC_PCI_DEV_OC uses SLI4 */
6084 if (dev_grp == LPFC_PCI_DEV_OC)
6085 phba->sli_rev = LPFC_SLI_REV4;
6087 /* Set up device INIT API function jump table */
6088 rc = lpfc_init_api_table_setup(phba, dev_grp);
6091 /* Set up SCSI API function jump table */
6092 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
6095 /* Set up SLI API function jump table */
6096 rc = lpfc_sli_api_table_setup(phba, dev_grp);
6099 /* Set up MBOX API function jump table */
6100 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
6108 * lpfc_log_intr_mode - Log the active interrupt mode
6109 * @phba: pointer to lpfc hba data structure.
6110 * @intr_mode: active interrupt mode adopted.
6112 * This routine it invoked to log the currently used active interrupt mode
6115 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
6117 switch (intr_mode) {
6119 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6120 "0470 Enable INTx interrupt mode.\n");
6123 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6124 "0481 Enabled MSI interrupt mode.\n");
6127 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6128 "0480 Enabled MSI-X interrupt mode.\n");
6131 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6132 "0482 Illegal interrupt mode.\n");
6139 * lpfc_enable_pci_dev - Enable a generic PCI device.
6140 * @phba: pointer to lpfc hba data structure.
6142 * This routine is invoked to enable the PCI device that is common to all
6147 * other values - error
6150 lpfc_enable_pci_dev(struct lpfc_hba *phba)
6152 struct pci_dev *pdev;
6154 /* Obtain PCI device reference */
6158 pdev = phba->pcidev;
6159 /* Enable PCI device */
6160 if (pci_enable_device_mem(pdev))
6162 /* Request PCI resource for the device */
6163 if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
6164 goto out_disable_device;
6165 /* Set up device as PCI master and save state for EEH */
6166 pci_set_master(pdev);
6167 pci_try_set_mwi(pdev);
6168 pci_save_state(pdev);
6170 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
6171 if (pci_is_pcie(pdev))
6172 pdev->needs_freset = 1;
6177 pci_disable_device(pdev);
6179 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6180 "1401 Failed to enable pci device\n");
6185 * lpfc_disable_pci_dev - Disable a generic PCI device.
6186 * @phba: pointer to lpfc hba data structure.
6188 * This routine is invoked to disable the PCI device that is common to all
6192 lpfc_disable_pci_dev(struct lpfc_hba *phba)
6194 struct pci_dev *pdev;
6196 /* Obtain PCI device reference */
6200 pdev = phba->pcidev;
6201 /* Release PCI resource and disable PCI device */
6202 pci_release_mem_regions(pdev);
6203 pci_disable_device(pdev);
6209 * lpfc_reset_hba - Reset a hba
6210 * @phba: pointer to lpfc hba data structure.
6212 * This routine is invoked to reset a hba device. It brings the HBA
6213 * offline, performs a board restart, and then brings the board back
6214 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
6215 * on outstanding mailbox commands.
6218 lpfc_reset_hba(struct lpfc_hba *phba)
6220 /* If resets are disabled then set error state and return. */
6221 if (!phba->cfg_enable_hba_reset) {
6222 phba->link_state = LPFC_HBA_ERROR;
6226 /* If not LPFC_SLI_ACTIVE, force all IO to be flushed */
6227 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) {
6228 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
6230 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
6231 lpfc_sli_flush_io_rings(phba);
6234 lpfc_sli_brdrestart(phba);
6236 lpfc_unblock_mgmt_io(phba);
6240 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
6241 * @phba: pointer to lpfc hba data structure.
6243 * This function enables the PCI SR-IOV virtual functions to a physical
6244 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6245 * enable the number of virtual functions to the physical function. As
6246 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6247 * API call does not considered as an error condition for most of the device.
6250 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
6252 struct pci_dev *pdev = phba->pcidev;
6256 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
6260 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
6265 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
6266 * @phba: pointer to lpfc hba data structure.
6267 * @nr_vfn: number of virtual functions to be enabled.
6269 * This function enables the PCI SR-IOV virtual functions to a physical
6270 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6271 * enable the number of virtual functions to the physical function. As
6272 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6273 * API call does not considered as an error condition for most of the device.
6276 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
6278 struct pci_dev *pdev = phba->pcidev;
6279 uint16_t max_nr_vfn;
6282 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
6283 if (nr_vfn > max_nr_vfn) {
6284 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6285 "3057 Requested vfs (%d) greater than "
6286 "supported vfs (%d)", nr_vfn, max_nr_vfn);
6290 rc = pci_enable_sriov(pdev, nr_vfn);
6292 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6293 "2806 Failed to enable sriov on this device "
6294 "with vfn number nr_vf:%d, rc:%d\n",
6297 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6298 "2807 Successful enable sriov on this device "
6299 "with vfn number nr_vf:%d\n", nr_vfn);
6304 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
6305 * @phba: pointer to lpfc hba data structure.
6307 * This routine is invoked to set up the driver internal resources before the
6308 * device specific resource setup to support the HBA device it attached to.
6312 * other values - error
6315 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
6317 struct lpfc_sli *psli = &phba->sli;
6320 * Driver resources common to all SLI revisions
6322 atomic_set(&phba->fast_event_count, 0);
6323 atomic_set(&phba->dbg_log_idx, 0);
6324 atomic_set(&phba->dbg_log_cnt, 0);
6325 atomic_set(&phba->dbg_log_dmping, 0);
6326 spin_lock_init(&phba->hbalock);
6328 /* Initialize port_list spinlock */
6329 spin_lock_init(&phba->port_list_lock);
6330 INIT_LIST_HEAD(&phba->port_list);
6332 INIT_LIST_HEAD(&phba->work_list);
6333 init_waitqueue_head(&phba->wait_4_mlo_m_q);
6335 /* Initialize the wait queue head for the kernel thread */
6336 init_waitqueue_head(&phba->work_waitq);
6338 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6339 "1403 Protocols supported %s %s %s\n",
6340 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
6342 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
6344 (phba->nvmet_support ? "NVMET" : " "));
6346 /* Initialize the IO buffer list used by driver for SLI3 SCSI */
6347 spin_lock_init(&phba->scsi_buf_list_get_lock);
6348 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
6349 spin_lock_init(&phba->scsi_buf_list_put_lock);
6350 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
6352 /* Initialize the fabric iocb list */
6353 INIT_LIST_HEAD(&phba->fabric_iocb_list);
6355 /* Initialize list to save ELS buffers */
6356 INIT_LIST_HEAD(&phba->elsbuf);
6358 /* Initialize FCF connection rec list */
6359 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
6361 /* Initialize OAS configuration list */
6362 spin_lock_init(&phba->devicelock);
6363 INIT_LIST_HEAD(&phba->luns);
6365 /* MBOX heartbeat timer */
6366 timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
6367 /* Fabric block timer */
6368 timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
6369 /* EA polling mode timer */
6370 timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
6371 /* Heartbeat timer */
6372 timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
6374 INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
6376 INIT_DELAYED_WORK(&phba->idle_stat_delay_work,
6377 lpfc_idle_stat_delay_work);
6383 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
6384 * @phba: pointer to lpfc hba data structure.
6386 * This routine is invoked to set up the driver internal resources specific to
6387 * support the SLI-3 HBA device it attached to.
6391 * other values - error
6394 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
6399 * Initialize timers used by driver
6402 /* FCP polling mode timer */
6403 timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
6405 /* Host attention work mask setup */
6406 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
6407 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
6409 /* Get all the module params for configuring this host */
6410 lpfc_get_cfgparam(phba);
6411 /* Set up phase-1 common device driver resources */
6413 rc = lpfc_setup_driver_resource_phase1(phba);
6417 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
6418 phba->menlo_flag |= HBA_MENLO_SUPPORT;
6419 /* check for menlo minimum sg count */
6420 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
6421 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
6424 if (!phba->sli.sli3_ring)
6425 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
6426 sizeof(struct lpfc_sli_ring),
6428 if (!phba->sli.sli3_ring)
6432 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
6433 * used to create the sg_dma_buf_pool must be dynamically calculated.
6436 if (phba->sli_rev == LPFC_SLI_REV4)
6437 entry_sz = sizeof(struct sli4_sge);
6439 entry_sz = sizeof(struct ulp_bde64);
6441 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
6442 if (phba->cfg_enable_bg) {
6444 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
6445 * the FCP rsp, and a BDE for each. Sice we have no control
6446 * over how many protection data segments the SCSI Layer
6447 * will hand us (ie: there could be one for every block
6448 * in the IO), we just allocate enough BDEs to accomidate
6449 * our max amount and we need to limit lpfc_sg_seg_cnt to
6450 * minimize the risk of running out.
6452 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6453 sizeof(struct fcp_rsp) +
6454 (LPFC_MAX_SG_SEG_CNT * entry_sz);
6456 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
6457 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
6459 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
6460 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
6463 * The scsi_buf for a regular I/O will hold the FCP cmnd,
6464 * the FCP rsp, a BDE for each, and a BDE for up to
6465 * cfg_sg_seg_cnt data segments.
6467 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6468 sizeof(struct fcp_rsp) +
6469 ((phba->cfg_sg_seg_cnt + 2) * entry_sz);
6471 /* Total BDEs in BPL for scsi_sg_list */
6472 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
6475 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6476 "9088 INIT sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
6477 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6478 phba->cfg_total_seg_cnt);
6480 phba->max_vpi = LPFC_MAX_VPI;
6481 /* This will be set to correct value after config_port mbox */
6482 phba->max_vports = 0;
6485 * Initialize the SLI Layer to run with lpfc HBAs.
6487 lpfc_sli_setup(phba);
6488 lpfc_sli_queue_init(phba);
6490 /* Allocate device driver memory */
6491 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
6494 phba->lpfc_sg_dma_buf_pool =
6495 dma_pool_create("lpfc_sg_dma_buf_pool",
6496 &phba->pcidev->dev, phba->cfg_sg_dma_buf_size,
6499 if (!phba->lpfc_sg_dma_buf_pool)
6502 phba->lpfc_cmd_rsp_buf_pool =
6503 dma_pool_create("lpfc_cmd_rsp_buf_pool",
6505 sizeof(struct fcp_cmnd) +
6506 sizeof(struct fcp_rsp),
6509 if (!phba->lpfc_cmd_rsp_buf_pool)
6510 goto fail_free_dma_buf_pool;
6513 * Enable sr-iov virtual functions if supported and configured
6514 * through the module parameter.
6516 if (phba->cfg_sriov_nr_virtfn > 0) {
6517 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6518 phba->cfg_sriov_nr_virtfn);
6520 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6521 "2808 Requested number of SR-IOV "
6522 "virtual functions (%d) is not "
6524 phba->cfg_sriov_nr_virtfn);
6525 phba->cfg_sriov_nr_virtfn = 0;
6531 fail_free_dma_buf_pool:
6532 dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
6533 phba->lpfc_sg_dma_buf_pool = NULL;
6535 lpfc_mem_free(phba);
6540 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
6541 * @phba: pointer to lpfc hba data structure.
6543 * This routine is invoked to unset the driver internal resources set up
6544 * specific for supporting the SLI-3 HBA device it attached to.
6547 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
6549 /* Free device driver memory allocated */
6550 lpfc_mem_free_all(phba);
6556 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
6557 * @phba: pointer to lpfc hba data structure.
6559 * This routine is invoked to set up the driver internal resources specific to
6560 * support the SLI-4 HBA device it attached to.
6564 * other values - error
6567 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
6569 LPFC_MBOXQ_t *mboxq;
6571 int rc, i, max_buf_size;
6578 phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
6579 phba->sli4_hba.num_possible_cpu = cpumask_last(cpu_possible_mask) + 1;
6580 phba->sli4_hba.curr_disp_cpu = 0;
6582 /* Get all the module params for configuring this host */
6583 lpfc_get_cfgparam(phba);
6585 /* Set up phase-1 common device driver resources */
6586 rc = lpfc_setup_driver_resource_phase1(phba);
6590 /* Before proceed, wait for POST done and device ready */
6591 rc = lpfc_sli4_post_status_check(phba);
6595 /* Allocate all driver workqueues here */
6597 /* The lpfc_wq workqueue for deferred irq use */
6598 phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
6601 * Initialize timers used by driver
6604 timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
6606 /* FCF rediscover timer */
6607 timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
6610 * Control structure for handling external multi-buffer mailbox
6611 * command pass-through.
6613 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
6614 sizeof(struct lpfc_mbox_ext_buf_ctx));
6615 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
6617 phba->max_vpi = LPFC_MAX_VPI;
6619 /* This will be set to correct value after the read_config mbox */
6620 phba->max_vports = 0;
6622 /* Program the default value of vlan_id and fc_map */
6623 phba->valid_vlan = 0;
6624 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
6625 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
6626 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
6629 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
6630 * we will associate a new ring, for each EQ/CQ/WQ tuple.
6631 * The WQ create will allocate the ring.
6634 /* Initialize buffer queue management fields */
6635 INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
6636 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
6637 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
6640 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
6642 /* Initialize the Abort buffer list used by driver */
6643 spin_lock_init(&phba->sli4_hba.abts_io_buf_list_lock);
6644 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_io_buf_list);
6646 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6647 /* Initialize the Abort nvme buffer list used by driver */
6648 spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
6649 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6650 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
6651 spin_lock_init(&phba->sli4_hba.t_active_list_lock);
6652 INIT_LIST_HEAD(&phba->sli4_hba.t_active_ctx_list);
6655 /* This abort list used by worker thread */
6656 spin_lock_init(&phba->sli4_hba.sgl_list_lock);
6657 spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
6658 spin_lock_init(&phba->sli4_hba.asynce_list_lock);
6659 spin_lock_init(&phba->sli4_hba.els_xri_abrt_list_lock);
6662 * Initialize driver internal slow-path work queues
6665 /* Driver internel slow-path CQ Event pool */
6666 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
6667 /* Response IOCB work queue list */
6668 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
6669 /* Asynchronous event CQ Event work queue list */
6670 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
6671 /* Slow-path XRI aborted CQ Event work queue list */
6672 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
6673 /* Receive queue CQ Event work queue list */
6674 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
6676 /* Initialize extent block lists. */
6677 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
6678 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
6679 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
6680 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
6682 /* Initialize mboxq lists. If the early init routines fail
6683 * these lists need to be correctly initialized.
6685 INIT_LIST_HEAD(&phba->sli.mboxq);
6686 INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
6688 /* initialize optic_state to 0xFF */
6689 phba->sli4_hba.lnk_info.optic_state = 0xff;
6691 /* Allocate device driver memory */
6692 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
6696 /* IF Type 2 ports get initialized now. */
6697 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
6698 LPFC_SLI_INTF_IF_TYPE_2) {
6699 rc = lpfc_pci_function_reset(phba);
6704 phba->temp_sensor_support = 1;
6707 /* Create the bootstrap mailbox command */
6708 rc = lpfc_create_bootstrap_mbox(phba);
6712 /* Set up the host's endian order with the device. */
6713 rc = lpfc_setup_endian_order(phba);
6715 goto out_free_bsmbx;
6717 /* Set up the hba's configuration parameters. */
6718 rc = lpfc_sli4_read_config(phba);
6720 goto out_free_bsmbx;
6721 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
6723 goto out_free_bsmbx;
6725 /* IF Type 0 ports get initialized now. */
6726 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6727 LPFC_SLI_INTF_IF_TYPE_0) {
6728 rc = lpfc_pci_function_reset(phba);
6730 goto out_free_bsmbx;
6733 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6737 goto out_free_bsmbx;
6740 /* Check for NVMET being configured */
6741 phba->nvmet_support = 0;
6742 if (lpfc_enable_nvmet_cnt) {
6744 /* First get WWN of HBA instance */
6745 lpfc_read_nv(phba, mboxq);
6746 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6747 if (rc != MBX_SUCCESS) {
6748 lpfc_printf_log(phba, KERN_ERR,
6750 "6016 Mailbox failed , mbxCmd x%x "
6751 "READ_NV, mbxStatus x%x\n",
6752 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6753 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
6754 mempool_free(mboxq, phba->mbox_mem_pool);
6756 goto out_free_bsmbx;
6759 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
6761 wwn = cpu_to_be64(wwn);
6762 phba->sli4_hba.wwnn.u.name = wwn;
6763 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
6765 /* wwn is WWPN of HBA instance */
6766 wwn = cpu_to_be64(wwn);
6767 phba->sli4_hba.wwpn.u.name = wwn;
6769 /* Check to see if it matches any module parameter */
6770 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
6771 if (wwn == lpfc_enable_nvmet[i]) {
6772 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
6773 if (lpfc_nvmet_mem_alloc(phba))
6776 phba->nvmet_support = 1; /* a match */
6778 lpfc_printf_log(phba, KERN_ERR,
6780 "6017 NVME Target %016llx\n",
6783 lpfc_printf_log(phba, KERN_ERR,
6785 "6021 Can't enable NVME Target."
6786 " NVME_TARGET_FC infrastructure"
6787 " is not in kernel\n");
6789 /* Not supported for NVMET */
6790 phba->cfg_xri_rebalancing = 0;
6791 if (phba->irq_chann_mode == NHT_MODE) {
6792 phba->cfg_irq_chann =
6793 phba->sli4_hba.num_present_cpu;
6794 phba->cfg_hdw_queue =
6795 phba->sli4_hba.num_present_cpu;
6796 phba->irq_chann_mode = NORMAL_MODE;
6803 lpfc_nvme_mod_param_dep(phba);
6806 * Get sli4 parameters that override parameters from Port capabilities.
6807 * If this call fails, it isn't critical unless the SLI4 parameters come
6810 rc = lpfc_get_sli4_parameters(phba, mboxq);
6812 if_type = bf_get(lpfc_sli_intf_if_type,
6813 &phba->sli4_hba.sli_intf);
6814 if_fam = bf_get(lpfc_sli_intf_sli_family,
6815 &phba->sli4_hba.sli_intf);
6816 if (phba->sli4_hba.extents_in_use &&
6817 phba->sli4_hba.rpi_hdrs_in_use) {
6818 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6819 "2999 Unsupported SLI4 Parameters "
6820 "Extents and RPI headers enabled.\n");
6821 if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6822 if_fam == LPFC_SLI_INTF_FAMILY_BE2) {
6823 mempool_free(mboxq, phba->mbox_mem_pool);
6825 goto out_free_bsmbx;
6828 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6829 if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
6830 mempool_free(mboxq, phba->mbox_mem_pool);
6832 goto out_free_bsmbx;
6837 * 1 for cmd, 1 for rsp, NVME adds an extra one
6838 * for boundary conditions in its max_sgl_segment template.
6841 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
6845 * It doesn't matter what family our adapter is in, we are
6846 * limited to 2 Pages, 512 SGEs, for our SGL.
6847 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
6849 max_buf_size = (2 * SLI4_PAGE_SIZE);
6852 * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
6853 * used to create the sg_dma_buf_pool must be calculated.
6855 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
6856 /* Both cfg_enable_bg and cfg_external_dif code paths */
6859 * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
6860 * the FCP rsp, and a SGE. Sice we have no control
6861 * over how many protection segments the SCSI Layer
6862 * will hand us (ie: there could be one for every block
6863 * in the IO), just allocate enough SGEs to accomidate
6864 * our max amount and we need to limit lpfc_sg_seg_cnt
6865 * to minimize the risk of running out.
6867 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6868 sizeof(struct fcp_rsp) + max_buf_size;
6870 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
6871 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
6874 * If supporting DIF, reduce the seg count for scsi to
6875 * allow room for the DIF sges.
6877 if (phba->cfg_enable_bg &&
6878 phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
6879 phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
6881 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6885 * The scsi_buf for a regular I/O holds the FCP cmnd,
6886 * the FCP rsp, a SGE for each, and a SGE for up to
6887 * cfg_sg_seg_cnt data segments.
6889 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6890 sizeof(struct fcp_rsp) +
6891 ((phba->cfg_sg_seg_cnt + extra) *
6892 sizeof(struct sli4_sge));
6894 /* Total SGEs for scsi_sg_list */
6895 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
6896 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6899 * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
6900 * need to post 1 page for the SGL.
6904 if (phba->cfg_xpsgl && !phba->nvmet_support)
6905 phba->cfg_sg_dma_buf_size = LPFC_DEFAULT_XPSGL_SIZE;
6906 else if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ)
6907 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
6909 phba->cfg_sg_dma_buf_size =
6910 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
6912 phba->border_sge_num = phba->cfg_sg_dma_buf_size /
6913 sizeof(struct sli4_sge);
6915 /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
6916 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6917 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
6918 lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
6919 "6300 Reducing NVME sg segment "
6921 LPFC_MAX_NVME_SEG_CNT);
6922 phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
6924 phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
6927 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6928 "9087 sg_seg_cnt:%d dmabuf_size:%d "
6929 "total:%d scsi:%d nvme:%d\n",
6930 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6931 phba->cfg_total_seg_cnt, phba->cfg_scsi_seg_cnt,
6932 phba->cfg_nvme_seg_cnt);
6934 if (phba->cfg_sg_dma_buf_size < SLI4_PAGE_SIZE)
6935 i = phba->cfg_sg_dma_buf_size;
6939 phba->lpfc_sg_dma_buf_pool =
6940 dma_pool_create("lpfc_sg_dma_buf_pool",
6942 phba->cfg_sg_dma_buf_size,
6944 if (!phba->lpfc_sg_dma_buf_pool)
6945 goto out_free_bsmbx;
6947 phba->lpfc_cmd_rsp_buf_pool =
6948 dma_pool_create("lpfc_cmd_rsp_buf_pool",
6950 sizeof(struct fcp_cmnd) +
6951 sizeof(struct fcp_rsp),
6953 if (!phba->lpfc_cmd_rsp_buf_pool)
6954 goto out_free_sg_dma_buf;
6956 mempool_free(mboxq, phba->mbox_mem_pool);
6958 /* Verify OAS is supported */
6959 lpfc_sli4_oas_verify(phba);
6961 /* Verify RAS support on adapter */
6962 lpfc_sli4_ras_init(phba);
6964 /* Verify all the SLI4 queues */
6965 rc = lpfc_sli4_queue_verify(phba);
6967 goto out_free_cmd_rsp_buf;
6969 /* Create driver internal CQE event pool */
6970 rc = lpfc_sli4_cq_event_pool_create(phba);
6972 goto out_free_cmd_rsp_buf;
6974 /* Initialize sgl lists per host */
6975 lpfc_init_sgl_list(phba);
6977 /* Allocate and initialize active sgl array */
6978 rc = lpfc_init_active_sgl_array(phba);
6980 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6981 "1430 Failed to initialize sgl list.\n");
6982 goto out_destroy_cq_event_pool;
6984 rc = lpfc_sli4_init_rpi_hdrs(phba);
6986 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6987 "1432 Failed to initialize rpi headers.\n");
6988 goto out_free_active_sgl;
6991 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6992 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6993 phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
6995 if (!phba->fcf.fcf_rr_bmask) {
6996 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6997 "2759 Failed allocate memory for FCF round "
6998 "robin failover bmask\n");
7000 goto out_remove_rpi_hdrs;
7003 phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann,
7004 sizeof(struct lpfc_hba_eq_hdl),
7006 if (!phba->sli4_hba.hba_eq_hdl) {
7007 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7008 "2572 Failed allocate memory for "
7009 "fast-path per-EQ handle array\n");
7011 goto out_free_fcf_rr_bmask;
7014 phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu,
7015 sizeof(struct lpfc_vector_map_info),
7017 if (!phba->sli4_hba.cpu_map) {
7018 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7019 "3327 Failed allocate memory for msi-x "
7020 "interrupt vector mapping\n");
7022 goto out_free_hba_eq_hdl;
7025 phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
7026 if (!phba->sli4_hba.eq_info) {
7027 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7028 "3321 Failed allocation for per_cpu stats\n");
7030 goto out_free_hba_cpu_map;
7033 phba->sli4_hba.idle_stat = kcalloc(phba->sli4_hba.num_possible_cpu,
7034 sizeof(*phba->sli4_hba.idle_stat),
7036 if (!phba->sli4_hba.idle_stat) {
7037 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7038 "3390 Failed allocation for idle_stat\n");
7040 goto out_free_hba_eq_info;
7043 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
7044 phba->sli4_hba.c_stat = alloc_percpu(struct lpfc_hdwq_stat);
7045 if (!phba->sli4_hba.c_stat) {
7046 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7047 "3332 Failed allocating per cpu hdwq stats\n");
7049 goto out_free_hba_idle_stat;
7054 * Enable sr-iov virtual functions if supported and configured
7055 * through the module parameter.
7057 if (phba->cfg_sriov_nr_virtfn > 0) {
7058 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
7059 phba->cfg_sriov_nr_virtfn);
7061 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7062 "3020 Requested number of SR-IOV "
7063 "virtual functions (%d) is not "
7065 phba->cfg_sriov_nr_virtfn);
7066 phba->cfg_sriov_nr_virtfn = 0;
7072 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
7073 out_free_hba_idle_stat:
7074 kfree(phba->sli4_hba.idle_stat);
7076 out_free_hba_eq_info:
7077 free_percpu(phba->sli4_hba.eq_info);
7078 out_free_hba_cpu_map:
7079 kfree(phba->sli4_hba.cpu_map);
7080 out_free_hba_eq_hdl:
7081 kfree(phba->sli4_hba.hba_eq_hdl);
7082 out_free_fcf_rr_bmask:
7083 kfree(phba->fcf.fcf_rr_bmask);
7084 out_remove_rpi_hdrs:
7085 lpfc_sli4_remove_rpi_hdrs(phba);
7086 out_free_active_sgl:
7087 lpfc_free_active_sgl(phba);
7088 out_destroy_cq_event_pool:
7089 lpfc_sli4_cq_event_pool_destroy(phba);
7090 out_free_cmd_rsp_buf:
7091 dma_pool_destroy(phba->lpfc_cmd_rsp_buf_pool);
7092 phba->lpfc_cmd_rsp_buf_pool = NULL;
7093 out_free_sg_dma_buf:
7094 dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
7095 phba->lpfc_sg_dma_buf_pool = NULL;
7097 lpfc_destroy_bootstrap_mbox(phba);
7099 lpfc_mem_free(phba);
7104 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
7105 * @phba: pointer to lpfc hba data structure.
7107 * This routine is invoked to unset the driver internal resources set up
7108 * specific for supporting the SLI-4 HBA device it attached to.
7111 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
7113 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
7115 free_percpu(phba->sli4_hba.eq_info);
7116 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
7117 free_percpu(phba->sli4_hba.c_stat);
7119 kfree(phba->sli4_hba.idle_stat);
7121 /* Free memory allocated for msi-x interrupt vector to CPU mapping */
7122 kfree(phba->sli4_hba.cpu_map);
7123 phba->sli4_hba.num_possible_cpu = 0;
7124 phba->sli4_hba.num_present_cpu = 0;
7125 phba->sli4_hba.curr_disp_cpu = 0;
7126 cpumask_clear(&phba->sli4_hba.irq_aff_mask);
7128 /* Free memory allocated for fast-path work queue handles */
7129 kfree(phba->sli4_hba.hba_eq_hdl);
7131 /* Free the allocated rpi headers. */
7132 lpfc_sli4_remove_rpi_hdrs(phba);
7133 lpfc_sli4_remove_rpis(phba);
7135 /* Free eligible FCF index bmask */
7136 kfree(phba->fcf.fcf_rr_bmask);
7138 /* Free the ELS sgl list */
7139 lpfc_free_active_sgl(phba);
7140 lpfc_free_els_sgl_list(phba);
7141 lpfc_free_nvmet_sgl_list(phba);
7143 /* Free the completion queue EQ event pool */
7144 lpfc_sli4_cq_event_release_all(phba);
7145 lpfc_sli4_cq_event_pool_destroy(phba);
7147 /* Release resource identifiers. */
7148 lpfc_sli4_dealloc_resource_identifiers(phba);
7150 /* Free the bsmbx region. */
7151 lpfc_destroy_bootstrap_mbox(phba);
7153 /* Free the SLI Layer memory with SLI4 HBAs */
7154 lpfc_mem_free_all(phba);
7156 /* Free the current connect table */
7157 list_for_each_entry_safe(conn_entry, next_conn_entry,
7158 &phba->fcf_conn_rec_list, list) {
7159 list_del_init(&conn_entry->list);
7167 * lpfc_init_api_table_setup - Set up init api function jump table
7168 * @phba: The hba struct for which this call is being executed.
7169 * @dev_grp: The HBA PCI-Device group number.
7171 * This routine sets up the device INIT interface API function jump table
7174 * Returns: 0 - success, -ENODEV - failure.
7177 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7179 phba->lpfc_hba_init_link = lpfc_hba_init_link;
7180 phba->lpfc_hba_down_link = lpfc_hba_down_link;
7181 phba->lpfc_selective_reset = lpfc_selective_reset;
7183 case LPFC_PCI_DEV_LP:
7184 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
7185 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
7186 phba->lpfc_stop_port = lpfc_stop_port_s3;
7188 case LPFC_PCI_DEV_OC:
7189 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
7190 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
7191 phba->lpfc_stop_port = lpfc_stop_port_s4;
7194 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7195 "1431 Invalid HBA PCI-device group: 0x%x\n",
7203 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
7204 * @phba: pointer to lpfc hba data structure.
7206 * This routine is invoked to set up the driver internal resources after the
7207 * device specific resource setup to support the HBA device it attached to.
7211 * other values - error
7214 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
7218 /* Startup the kernel thread for this host adapter. */
7219 phba->worker_thread = kthread_run(lpfc_do_work, phba,
7220 "lpfc_worker_%d", phba->brd_no);
7221 if (IS_ERR(phba->worker_thread)) {
7222 error = PTR_ERR(phba->worker_thread);
7230 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
7231 * @phba: pointer to lpfc hba data structure.
7233 * This routine is invoked to unset the driver internal resources set up after
7234 * the device specific resource setup for supporting the HBA device it
7238 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
7241 flush_workqueue(phba->wq);
7242 destroy_workqueue(phba->wq);
7246 /* Stop kernel worker thread */
7247 if (phba->worker_thread)
7248 kthread_stop(phba->worker_thread);
7252 * lpfc_free_iocb_list - Free iocb list.
7253 * @phba: pointer to lpfc hba data structure.
7255 * This routine is invoked to free the driver's IOCB list and memory.
7258 lpfc_free_iocb_list(struct lpfc_hba *phba)
7260 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
7262 spin_lock_irq(&phba->hbalock);
7263 list_for_each_entry_safe(iocbq_entry, iocbq_next,
7264 &phba->lpfc_iocb_list, list) {
7265 list_del(&iocbq_entry->list);
7267 phba->total_iocbq_bufs--;
7269 spin_unlock_irq(&phba->hbalock);
7275 * lpfc_init_iocb_list - Allocate and initialize iocb list.
7276 * @phba: pointer to lpfc hba data structure.
7277 * @iocb_count: number of requested iocbs
7279 * This routine is invoked to allocate and initizlize the driver's IOCB
7280 * list and set up the IOCB tag array accordingly.
7284 * other values - error
7287 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
7289 struct lpfc_iocbq *iocbq_entry = NULL;
7293 /* Initialize and populate the iocb list per host. */
7294 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
7295 for (i = 0; i < iocb_count; i++) {
7296 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
7297 if (iocbq_entry == NULL) {
7298 printk(KERN_ERR "%s: only allocated %d iocbs of "
7299 "expected %d count. Unloading driver.\n",
7300 __func__, i, iocb_count);
7301 goto out_free_iocbq;
7304 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
7307 printk(KERN_ERR "%s: failed to allocate IOTAG. "
7308 "Unloading driver.\n", __func__);
7309 goto out_free_iocbq;
7311 iocbq_entry->sli4_lxritag = NO_XRI;
7312 iocbq_entry->sli4_xritag = NO_XRI;
7314 spin_lock_irq(&phba->hbalock);
7315 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
7316 phba->total_iocbq_bufs++;
7317 spin_unlock_irq(&phba->hbalock);
7323 lpfc_free_iocb_list(phba);
7329 * lpfc_free_sgl_list - Free a given sgl list.
7330 * @phba: pointer to lpfc hba data structure.
7331 * @sglq_list: pointer to the head of sgl list.
7333 * This routine is invoked to free a give sgl list and memory.
7336 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
7338 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7340 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
7341 list_del(&sglq_entry->list);
7342 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
7348 * lpfc_free_els_sgl_list - Free els sgl list.
7349 * @phba: pointer to lpfc hba data structure.
7351 * This routine is invoked to free the driver's els sgl list and memory.
7354 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
7356 LIST_HEAD(sglq_list);
7358 /* Retrieve all els sgls from driver list */
7359 spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
7360 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
7361 spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
7363 /* Now free the sgl list */
7364 lpfc_free_sgl_list(phba, &sglq_list);
7368 * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
7369 * @phba: pointer to lpfc hba data structure.
7371 * This routine is invoked to free the driver's nvmet sgl list and memory.
7374 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
7376 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7377 LIST_HEAD(sglq_list);
7379 /* Retrieve all nvmet sgls from driver list */
7380 spin_lock_irq(&phba->hbalock);
7381 spin_lock(&phba->sli4_hba.sgl_list_lock);
7382 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
7383 spin_unlock(&phba->sli4_hba.sgl_list_lock);
7384 spin_unlock_irq(&phba->hbalock);
7386 /* Now free the sgl list */
7387 list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
7388 list_del(&sglq_entry->list);
7389 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
7393 /* Update the nvmet_xri_cnt to reflect no current sgls.
7394 * The next initialization cycle sets the count and allocates
7395 * the sgls over again.
7397 phba->sli4_hba.nvmet_xri_cnt = 0;
7401 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
7402 * @phba: pointer to lpfc hba data structure.
7404 * This routine is invoked to allocate the driver's active sgl memory.
7405 * This array will hold the sglq_entry's for active IOs.
7408 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
7411 size = sizeof(struct lpfc_sglq *);
7412 size *= phba->sli4_hba.max_cfg_param.max_xri;
7414 phba->sli4_hba.lpfc_sglq_active_list =
7415 kzalloc(size, GFP_KERNEL);
7416 if (!phba->sli4_hba.lpfc_sglq_active_list)
7422 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
7423 * @phba: pointer to lpfc hba data structure.
7425 * This routine is invoked to walk through the array of active sglq entries
7426 * and free all of the resources.
7427 * This is just a place holder for now.
7430 lpfc_free_active_sgl(struct lpfc_hba *phba)
7432 kfree(phba->sli4_hba.lpfc_sglq_active_list);
7436 * lpfc_init_sgl_list - Allocate and initialize sgl list.
7437 * @phba: pointer to lpfc hba data structure.
7439 * This routine is invoked to allocate and initizlize the driver's sgl
7440 * list and set up the sgl xritag tag array accordingly.
7444 lpfc_init_sgl_list(struct lpfc_hba *phba)
7446 /* Initialize and populate the sglq list per host/VF. */
7447 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
7448 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7449 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
7450 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
7452 /* els xri-sgl book keeping */
7453 phba->sli4_hba.els_xri_cnt = 0;
7455 /* nvme xri-buffer book keeping */
7456 phba->sli4_hba.io_xri_cnt = 0;
7460 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
7461 * @phba: pointer to lpfc hba data structure.
7463 * This routine is invoked to post rpi header templates to the
7464 * port for those SLI4 ports that do not support extents. This routine
7465 * posts a PAGE_SIZE memory region to the port to hold up to
7466 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
7467 * and should be called only when interrupts are disabled.
7471 * -ERROR - otherwise.
7474 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
7477 struct lpfc_rpi_hdr *rpi_hdr;
7479 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
7480 if (!phba->sli4_hba.rpi_hdrs_in_use)
7482 if (phba->sli4_hba.extents_in_use)
7485 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
7487 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7488 "0391 Error during rpi post operation\n");
7489 lpfc_sli4_remove_rpis(phba);
7497 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
7498 * @phba: pointer to lpfc hba data structure.
7500 * This routine is invoked to allocate a single 4KB memory region to
7501 * support rpis and stores them in the phba. This single region
7502 * provides support for up to 64 rpis. The region is used globally
7506 * A valid rpi hdr on success.
7507 * A NULL pointer on any failure.
7509 struct lpfc_rpi_hdr *
7510 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
7512 uint16_t rpi_limit, curr_rpi_range;
7513 struct lpfc_dmabuf *dmabuf;
7514 struct lpfc_rpi_hdr *rpi_hdr;
7517 * If the SLI4 port supports extents, posting the rpi header isn't
7518 * required. Set the expected maximum count and let the actual value
7519 * get set when extents are fully allocated.
7521 if (!phba->sli4_hba.rpi_hdrs_in_use)
7523 if (phba->sli4_hba.extents_in_use)
7526 /* The limit on the logical index is just the max_rpi count. */
7527 rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
7529 spin_lock_irq(&phba->hbalock);
7531 * Establish the starting RPI in this header block. The starting
7532 * rpi is normalized to a zero base because the physical rpi is
7535 curr_rpi_range = phba->sli4_hba.next_rpi;
7536 spin_unlock_irq(&phba->hbalock);
7538 /* Reached full RPI range */
7539 if (curr_rpi_range == rpi_limit)
7543 * First allocate the protocol header region for the port. The
7544 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
7546 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7550 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
7551 LPFC_HDR_TEMPLATE_SIZE,
7552 &dmabuf->phys, GFP_KERNEL);
7553 if (!dmabuf->virt) {
7555 goto err_free_dmabuf;
7558 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
7560 goto err_free_coherent;
7563 /* Save the rpi header data for cleanup later. */
7564 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
7566 goto err_free_coherent;
7568 rpi_hdr->dmabuf = dmabuf;
7569 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
7570 rpi_hdr->page_count = 1;
7571 spin_lock_irq(&phba->hbalock);
7573 /* The rpi_hdr stores the logical index only. */
7574 rpi_hdr->start_rpi = curr_rpi_range;
7575 rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
7576 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
7578 spin_unlock_irq(&phba->hbalock);
7582 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
7583 dmabuf->virt, dmabuf->phys);
7590 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
7591 * @phba: pointer to lpfc hba data structure.
7593 * This routine is invoked to remove all memory resources allocated
7594 * to support rpis for SLI4 ports not supporting extents. This routine
7595 * presumes the caller has released all rpis consumed by fabric or port
7596 * logins and is prepared to have the header pages removed.
7599 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
7601 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
7603 if (!phba->sli4_hba.rpi_hdrs_in_use)
7606 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
7607 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
7608 list_del(&rpi_hdr->list);
7609 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
7610 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
7611 kfree(rpi_hdr->dmabuf);
7615 /* There are no rpis available to the port now. */
7616 phba->sli4_hba.next_rpi = 0;
7620 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
7621 * @pdev: pointer to pci device data structure.
7623 * This routine is invoked to allocate the driver hba data structure for an
7624 * HBA device. If the allocation is successful, the phba reference to the
7625 * PCI device data structure is set.
7628 * pointer to @phba - successful
7631 static struct lpfc_hba *
7632 lpfc_hba_alloc(struct pci_dev *pdev)
7634 struct lpfc_hba *phba;
7636 /* Allocate memory for HBA structure */
7637 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
7639 dev_err(&pdev->dev, "failed to allocate hba struct\n");
7643 /* Set reference to PCI device in HBA structure */
7644 phba->pcidev = pdev;
7646 /* Assign an unused board number */
7647 phba->brd_no = lpfc_get_instance();
7648 if (phba->brd_no < 0) {
7652 phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
7654 spin_lock_init(&phba->ct_ev_lock);
7655 INIT_LIST_HEAD(&phba->ct_ev_waiters);
7661 * lpfc_hba_free - Free driver hba data structure with a device.
7662 * @phba: pointer to lpfc hba data structure.
7664 * This routine is invoked to free the driver hba data structure with an
7668 lpfc_hba_free(struct lpfc_hba *phba)
7670 if (phba->sli_rev == LPFC_SLI_REV4)
7671 kfree(phba->sli4_hba.hdwq);
7673 /* Release the driver assigned board number */
7674 idr_remove(&lpfc_hba_index, phba->brd_no);
7676 /* Free memory allocated with sli3 rings */
7677 kfree(phba->sli.sli3_ring);
7678 phba->sli.sli3_ring = NULL;
7685 * lpfc_create_shost - Create hba physical port with associated scsi host.
7686 * @phba: pointer to lpfc hba data structure.
7688 * This routine is invoked to create HBA physical port and associate a SCSI
7693 * other values - error
7696 lpfc_create_shost(struct lpfc_hba *phba)
7698 struct lpfc_vport *vport;
7699 struct Scsi_Host *shost;
7701 /* Initialize HBA FC structure */
7702 phba->fc_edtov = FF_DEF_EDTOV;
7703 phba->fc_ratov = FF_DEF_RATOV;
7704 phba->fc_altov = FF_DEF_ALTOV;
7705 phba->fc_arbtov = FF_DEF_ARBTOV;
7707 atomic_set(&phba->sdev_cnt, 0);
7708 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
7712 shost = lpfc_shost_from_vport(vport);
7713 phba->pport = vport;
7715 if (phba->nvmet_support) {
7716 /* Only 1 vport (pport) will support NVME target */
7717 phba->targetport = NULL;
7718 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
7719 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME_DISC,
7720 "6076 NVME Target Found\n");
7723 lpfc_debugfs_initialize(vport);
7724 /* Put reference to SCSI host to driver's device private data */
7725 pci_set_drvdata(phba->pcidev, shost);
7728 * At this point we are fully registered with PSA. In addition,
7729 * any initial discovery should be completed.
7731 vport->load_flag |= FC_ALLOW_FDMI;
7732 if (phba->cfg_enable_SmartSAN ||
7733 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
7735 /* Setup appropriate attribute masks */
7736 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
7737 if (phba->cfg_enable_SmartSAN)
7738 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
7740 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
7746 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
7747 * @phba: pointer to lpfc hba data structure.
7749 * This routine is invoked to destroy HBA physical port and the associated
7753 lpfc_destroy_shost(struct lpfc_hba *phba)
7755 struct lpfc_vport *vport = phba->pport;
7757 /* Destroy physical port that associated with the SCSI host */
7758 destroy_port(vport);
7764 * lpfc_setup_bg - Setup Block guard structures and debug areas.
7765 * @phba: pointer to lpfc hba data structure.
7766 * @shost: the shost to be used to detect Block guard settings.
7768 * This routine sets up the local Block guard protocol settings for @shost.
7769 * This routine also allocates memory for debugging bg buffers.
7772 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
7777 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7778 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7779 "1478 Registering BlockGuard with the "
7782 old_mask = phba->cfg_prot_mask;
7783 old_guard = phba->cfg_prot_guard;
7785 /* Only allow supported values */
7786 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
7787 SHOST_DIX_TYPE0_PROTECTION |
7788 SHOST_DIX_TYPE1_PROTECTION);
7789 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
7790 SHOST_DIX_GUARD_CRC);
7792 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
7793 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
7794 phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
7796 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7797 if ((old_mask != phba->cfg_prot_mask) ||
7798 (old_guard != phba->cfg_prot_guard))
7799 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7800 "1475 Registering BlockGuard with the "
7801 "SCSI layer: mask %d guard %d\n",
7802 phba->cfg_prot_mask,
7803 phba->cfg_prot_guard);
7805 scsi_host_set_prot(shost, phba->cfg_prot_mask);
7806 scsi_host_set_guard(shost, phba->cfg_prot_guard);
7808 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7809 "1479 Not Registering BlockGuard with the SCSI "
7810 "layer, Bad protection parameters: %d %d\n",
7811 old_mask, old_guard);
7816 * lpfc_post_init_setup - Perform necessary device post initialization setup.
7817 * @phba: pointer to lpfc hba data structure.
7819 * This routine is invoked to perform all the necessary post initialization
7820 * setup for the device.
7823 lpfc_post_init_setup(struct lpfc_hba *phba)
7825 struct Scsi_Host *shost;
7826 struct lpfc_adapter_event_header adapter_event;
7828 /* Get the default values for Model Name and Description */
7829 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
7832 * hba setup may have changed the hba_queue_depth so we need to
7833 * adjust the value of can_queue.
7835 shost = pci_get_drvdata(phba->pcidev);
7836 shost->can_queue = phba->cfg_hba_queue_depth - 10;
7838 lpfc_host_attrib_init(shost);
7840 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7841 spin_lock_irq(shost->host_lock);
7842 lpfc_poll_start_timer(phba);
7843 spin_unlock_irq(shost->host_lock);
7846 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7847 "0428 Perform SCSI scan\n");
7848 /* Send board arrival event to upper layer */
7849 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
7850 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
7851 fc_host_post_vendor_event(shost, fc_get_event_number(),
7852 sizeof(adapter_event),
7853 (char *) &adapter_event,
7859 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
7860 * @phba: pointer to lpfc hba data structure.
7862 * This routine is invoked to set up the PCI device memory space for device
7863 * with SLI-3 interface spec.
7867 * other values - error
7870 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
7872 struct pci_dev *pdev = phba->pcidev;
7873 unsigned long bar0map_len, bar2map_len;
7881 /* Set the device DMA mask size */
7882 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
7884 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
7889 /* Get the bus address of Bar0 and Bar2 and the number of bytes
7890 * required by each mapping.
7892 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7893 bar0map_len = pci_resource_len(pdev, 0);
7895 phba->pci_bar2_map = pci_resource_start(pdev, 2);
7896 bar2map_len = pci_resource_len(pdev, 2);
7898 /* Map HBA SLIM to a kernel virtual address. */
7899 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
7900 if (!phba->slim_memmap_p) {
7901 dev_printk(KERN_ERR, &pdev->dev,
7902 "ioremap failed for SLIM memory.\n");
7906 /* Map HBA Control Registers to a kernel virtual address. */
7907 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
7908 if (!phba->ctrl_regs_memmap_p) {
7909 dev_printk(KERN_ERR, &pdev->dev,
7910 "ioremap failed for HBA control registers.\n");
7911 goto out_iounmap_slim;
7914 /* Allocate memory for SLI-2 structures */
7915 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7916 &phba->slim2p.phys, GFP_KERNEL);
7917 if (!phba->slim2p.virt)
7920 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7921 phba->mbox_ext = (phba->slim2p.virt +
7922 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7923 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7924 phba->IOCBs = (phba->slim2p.virt +
7925 offsetof(struct lpfc_sli2_slim, IOCBs));
7927 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7928 lpfc_sli_hbq_size(),
7929 &phba->hbqslimp.phys,
7931 if (!phba->hbqslimp.virt)
7934 hbq_count = lpfc_sli_hbq_count();
7935 ptr = phba->hbqslimp.virt;
7936 for (i = 0; i < hbq_count; ++i) {
7937 phba->hbqs[i].hbq_virt = ptr;
7938 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7939 ptr += (lpfc_hbq_defs[i]->entry_count *
7940 sizeof(struct lpfc_hbq_entry));
7942 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7943 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7945 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7947 phba->MBslimaddr = phba->slim_memmap_p;
7948 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7949 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7950 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7951 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7956 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7957 phba->slim2p.virt, phba->slim2p.phys);
7959 iounmap(phba->ctrl_regs_memmap_p);
7961 iounmap(phba->slim_memmap_p);
7967 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7968 * @phba: pointer to lpfc hba data structure.
7970 * This routine is invoked to unset the PCI device memory space for device
7971 * with SLI-3 interface spec.
7974 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7976 struct pci_dev *pdev;
7978 /* Obtain PCI device reference */
7982 pdev = phba->pcidev;
7984 /* Free coherent DMA memory allocated */
7985 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7986 phba->hbqslimp.virt, phba->hbqslimp.phys);
7987 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7988 phba->slim2p.virt, phba->slim2p.phys);
7990 /* I/O memory unmap */
7991 iounmap(phba->ctrl_regs_memmap_p);
7992 iounmap(phba->slim_memmap_p);
7998 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7999 * @phba: pointer to lpfc hba data structure.
8001 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
8002 * done and check status.
8004 * Return 0 if successful, otherwise -ENODEV.
8007 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
8009 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
8010 struct lpfc_register reg_data;
8011 int i, port_error = 0;
8014 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
8015 memset(®_data, 0, sizeof(reg_data));
8016 if (!phba->sli4_hba.PSMPHRregaddr)
8019 /* Wait up to 30 seconds for the SLI Port POST done and ready */
8020 for (i = 0; i < 3000; i++) {
8021 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
8022 &portsmphr_reg.word0) ||
8023 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
8024 /* Port has a fatal POST error, break out */
8025 port_error = -ENODEV;
8028 if (LPFC_POST_STAGE_PORT_READY ==
8029 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
8035 * If there was a port error during POST, then don't proceed with
8036 * other register reads as the data may not be valid. Just exit.
8039 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8040 "1408 Port Failed POST - portsmphr=0x%x, "
8041 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
8042 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
8043 portsmphr_reg.word0,
8044 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
8045 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
8046 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
8047 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
8048 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
8049 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
8050 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
8051 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
8053 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8054 "2534 Device Info: SLIFamily=0x%x, "
8055 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
8056 "SLIHint_2=0x%x, FT=0x%x\n",
8057 bf_get(lpfc_sli_intf_sli_family,
8058 &phba->sli4_hba.sli_intf),
8059 bf_get(lpfc_sli_intf_slirev,
8060 &phba->sli4_hba.sli_intf),
8061 bf_get(lpfc_sli_intf_if_type,
8062 &phba->sli4_hba.sli_intf),
8063 bf_get(lpfc_sli_intf_sli_hint1,
8064 &phba->sli4_hba.sli_intf),
8065 bf_get(lpfc_sli_intf_sli_hint2,
8066 &phba->sli4_hba.sli_intf),
8067 bf_get(lpfc_sli_intf_func_type,
8068 &phba->sli4_hba.sli_intf));
8070 * Check for other Port errors during the initialization
8071 * process. Fail the load if the port did not come up
8074 if_type = bf_get(lpfc_sli_intf_if_type,
8075 &phba->sli4_hba.sli_intf);
8077 case LPFC_SLI_INTF_IF_TYPE_0:
8078 phba->sli4_hba.ue_mask_lo =
8079 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
8080 phba->sli4_hba.ue_mask_hi =
8081 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
8083 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
8085 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
8086 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
8087 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
8088 lpfc_printf_log(phba, KERN_ERR,
8090 "1422 Unrecoverable Error "
8091 "Detected during POST "
8092 "uerr_lo_reg=0x%x, "
8093 "uerr_hi_reg=0x%x, "
8094 "ue_mask_lo_reg=0x%x, "
8095 "ue_mask_hi_reg=0x%x\n",
8098 phba->sli4_hba.ue_mask_lo,
8099 phba->sli4_hba.ue_mask_hi);
8100 port_error = -ENODEV;
8103 case LPFC_SLI_INTF_IF_TYPE_2:
8104 case LPFC_SLI_INTF_IF_TYPE_6:
8105 /* Final checks. The port status should be clean. */
8106 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
8108 (bf_get(lpfc_sliport_status_err, ®_data) &&
8109 !bf_get(lpfc_sliport_status_rn, ®_data))) {
8110 phba->work_status[0] =
8111 readl(phba->sli4_hba.u.if_type2.
8113 phba->work_status[1] =
8114 readl(phba->sli4_hba.u.if_type2.
8116 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8117 "2888 Unrecoverable port error "
8118 "following POST: port status reg "
8119 "0x%x, port_smphr reg 0x%x, "
8120 "error 1=0x%x, error 2=0x%x\n",
8122 portsmphr_reg.word0,
8123 phba->work_status[0],
8124 phba->work_status[1]);
8125 port_error = -ENODEV;
8128 case LPFC_SLI_INTF_IF_TYPE_1:
8137 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
8138 * @phba: pointer to lpfc hba data structure.
8139 * @if_type: The SLI4 interface type getting configured.
8141 * This routine is invoked to set up SLI4 BAR0 PCI config space register
8145 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
8148 case LPFC_SLI_INTF_IF_TYPE_0:
8149 phba->sli4_hba.u.if_type0.UERRLOregaddr =
8150 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
8151 phba->sli4_hba.u.if_type0.UERRHIregaddr =
8152 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
8153 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
8154 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
8155 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
8156 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
8157 phba->sli4_hba.SLIINTFregaddr =
8158 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
8160 case LPFC_SLI_INTF_IF_TYPE_2:
8161 phba->sli4_hba.u.if_type2.EQDregaddr =
8162 phba->sli4_hba.conf_regs_memmap_p +
8163 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8164 phba->sli4_hba.u.if_type2.ERR1regaddr =
8165 phba->sli4_hba.conf_regs_memmap_p +
8166 LPFC_CTL_PORT_ER1_OFFSET;
8167 phba->sli4_hba.u.if_type2.ERR2regaddr =
8168 phba->sli4_hba.conf_regs_memmap_p +
8169 LPFC_CTL_PORT_ER2_OFFSET;
8170 phba->sli4_hba.u.if_type2.CTRLregaddr =
8171 phba->sli4_hba.conf_regs_memmap_p +
8172 LPFC_CTL_PORT_CTL_OFFSET;
8173 phba->sli4_hba.u.if_type2.STATUSregaddr =
8174 phba->sli4_hba.conf_regs_memmap_p +
8175 LPFC_CTL_PORT_STA_OFFSET;
8176 phba->sli4_hba.SLIINTFregaddr =
8177 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
8178 phba->sli4_hba.PSMPHRregaddr =
8179 phba->sli4_hba.conf_regs_memmap_p +
8180 LPFC_CTL_PORT_SEM_OFFSET;
8181 phba->sli4_hba.RQDBregaddr =
8182 phba->sli4_hba.conf_regs_memmap_p +
8183 LPFC_ULP0_RQ_DOORBELL;
8184 phba->sli4_hba.WQDBregaddr =
8185 phba->sli4_hba.conf_regs_memmap_p +
8186 LPFC_ULP0_WQ_DOORBELL;
8187 phba->sli4_hba.CQDBregaddr =
8188 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
8189 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8190 phba->sli4_hba.MQDBregaddr =
8191 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
8192 phba->sli4_hba.BMBXregaddr =
8193 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8195 case LPFC_SLI_INTF_IF_TYPE_6:
8196 phba->sli4_hba.u.if_type2.EQDregaddr =
8197 phba->sli4_hba.conf_regs_memmap_p +
8198 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8199 phba->sli4_hba.u.if_type2.ERR1regaddr =
8200 phba->sli4_hba.conf_regs_memmap_p +
8201 LPFC_CTL_PORT_ER1_OFFSET;
8202 phba->sli4_hba.u.if_type2.ERR2regaddr =
8203 phba->sli4_hba.conf_regs_memmap_p +
8204 LPFC_CTL_PORT_ER2_OFFSET;
8205 phba->sli4_hba.u.if_type2.CTRLregaddr =
8206 phba->sli4_hba.conf_regs_memmap_p +
8207 LPFC_CTL_PORT_CTL_OFFSET;
8208 phba->sli4_hba.u.if_type2.STATUSregaddr =
8209 phba->sli4_hba.conf_regs_memmap_p +
8210 LPFC_CTL_PORT_STA_OFFSET;
8211 phba->sli4_hba.PSMPHRregaddr =
8212 phba->sli4_hba.conf_regs_memmap_p +
8213 LPFC_CTL_PORT_SEM_OFFSET;
8214 phba->sli4_hba.BMBXregaddr =
8215 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8217 case LPFC_SLI_INTF_IF_TYPE_1:
8219 dev_printk(KERN_ERR, &phba->pcidev->dev,
8220 "FATAL - unsupported SLI4 interface type - %d\n",
8227 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
8228 * @phba: pointer to lpfc hba data structure.
8229 * @if_type: sli if type to operate on.
8231 * This routine is invoked to set up SLI4 BAR1 register memory map.
8234 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
8237 case LPFC_SLI_INTF_IF_TYPE_0:
8238 phba->sli4_hba.PSMPHRregaddr =
8239 phba->sli4_hba.ctrl_regs_memmap_p +
8240 LPFC_SLIPORT_IF0_SMPHR;
8241 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8243 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8245 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8248 case LPFC_SLI_INTF_IF_TYPE_6:
8249 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8250 LPFC_IF6_RQ_DOORBELL;
8251 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8252 LPFC_IF6_WQ_DOORBELL;
8253 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8254 LPFC_IF6_CQ_DOORBELL;
8255 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8256 LPFC_IF6_EQ_DOORBELL;
8257 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8258 LPFC_IF6_MQ_DOORBELL;
8260 case LPFC_SLI_INTF_IF_TYPE_2:
8261 case LPFC_SLI_INTF_IF_TYPE_1:
8263 dev_err(&phba->pcidev->dev,
8264 "FATAL - unsupported SLI4 interface type - %d\n",
8271 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
8272 * @phba: pointer to lpfc hba data structure.
8273 * @vf: virtual function number
8275 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
8276 * based on the given viftual function number, @vf.
8278 * Return 0 if successful, otherwise -ENODEV.
8281 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
8283 if (vf > LPFC_VIR_FUNC_MAX)
8286 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8287 vf * LPFC_VFR_PAGE_SIZE +
8288 LPFC_ULP0_RQ_DOORBELL);
8289 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8290 vf * LPFC_VFR_PAGE_SIZE +
8291 LPFC_ULP0_WQ_DOORBELL);
8292 phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8293 vf * LPFC_VFR_PAGE_SIZE +
8294 LPFC_EQCQ_DOORBELL);
8295 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8296 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8297 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
8298 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8299 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
8304 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
8305 * @phba: pointer to lpfc hba data structure.
8307 * This routine is invoked to create the bootstrap mailbox
8308 * region consistent with the SLI-4 interface spec. This
8309 * routine allocates all memory necessary to communicate
8310 * mailbox commands to the port and sets up all alignment
8311 * needs. No locks are expected to be held when calling
8316 * -ENOMEM - could not allocated memory.
8319 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
8322 struct lpfc_dmabuf *dmabuf;
8323 struct dma_address *dma_address;
8327 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
8332 * The bootstrap mailbox region is comprised of 2 parts
8333 * plus an alignment restriction of 16 bytes.
8335 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
8336 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size,
8337 &dmabuf->phys, GFP_KERNEL);
8338 if (!dmabuf->virt) {
8344 * Initialize the bootstrap mailbox pointers now so that the register
8345 * operations are simple later. The mailbox dma address is required
8346 * to be 16-byte aligned. Also align the virtual memory as each
8347 * maibox is copied into the bmbx mailbox region before issuing the
8348 * command to the port.
8350 phba->sli4_hba.bmbx.dmabuf = dmabuf;
8351 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
8353 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
8354 LPFC_ALIGN_16_BYTE);
8355 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
8356 LPFC_ALIGN_16_BYTE);
8359 * Set the high and low physical addresses now. The SLI4 alignment
8360 * requirement is 16 bytes and the mailbox is posted to the port
8361 * as two 30-bit addresses. The other data is a bit marking whether
8362 * the 30-bit address is the high or low address.
8363 * Upcast bmbx aphys to 64bits so shift instruction compiles
8364 * clean on 32 bit machines.
8366 dma_address = &phba->sli4_hba.bmbx.dma_address;
8367 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
8368 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
8369 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
8370 LPFC_BMBX_BIT1_ADDR_HI);
8372 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
8373 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
8374 LPFC_BMBX_BIT1_ADDR_LO);
8379 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
8380 * @phba: pointer to lpfc hba data structure.
8382 * This routine is invoked to teardown the bootstrap mailbox
8383 * region and release all host resources. This routine requires
8384 * the caller to ensure all mailbox commands recovered, no
8385 * additional mailbox comands are sent, and interrupts are disabled
8386 * before calling this routine.
8390 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
8392 dma_free_coherent(&phba->pcidev->dev,
8393 phba->sli4_hba.bmbx.bmbx_size,
8394 phba->sli4_hba.bmbx.dmabuf->virt,
8395 phba->sli4_hba.bmbx.dmabuf->phys);
8397 kfree(phba->sli4_hba.bmbx.dmabuf);
8398 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
8401 static const char * const lpfc_topo_to_str[] = {
8411 #define LINK_FLAGS_DEF 0x0
8412 #define LINK_FLAGS_P2P 0x1
8413 #define LINK_FLAGS_LOOP 0x2
8415 * lpfc_map_topology - Map the topology read from READ_CONFIG
8416 * @phba: pointer to lpfc hba data structure.
8417 * @rd_config: pointer to read config data
8419 * This routine is invoked to map the topology values as read
8420 * from the read config mailbox command. If the persistent
8421 * topology feature is supported, the firmware will provide the
8422 * saved topology information to be used in INIT_LINK
8425 lpfc_map_topology(struct lpfc_hba *phba, struct lpfc_mbx_read_config *rd_config)
8429 ptv = bf_get(lpfc_mbx_rd_conf_ptv, rd_config);
8430 tf = bf_get(lpfc_mbx_rd_conf_tf, rd_config);
8431 pt = bf_get(lpfc_mbx_rd_conf_pt, rd_config);
8433 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8434 "2027 Read Config Data : ptv:0x%x, tf:0x%x pt:0x%x",
8437 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8438 "2019 FW does not support persistent topology "
8439 "Using driver parameter defined value [%s]",
8440 lpfc_topo_to_str[phba->cfg_topology]);
8443 /* FW supports persistent topology - override module parameter value */
8444 phba->hba_flag |= HBA_PERSISTENT_TOPO;
8445 switch (phba->pcidev->device) {
8446 case PCI_DEVICE_ID_LANCER_G7_FC:
8447 case PCI_DEVICE_ID_LANCER_G6_FC:
8449 phba->cfg_topology = ((pt == LINK_FLAGS_LOOP)
8450 ? FLAGS_TOPOLOGY_MODE_LOOP
8451 : FLAGS_TOPOLOGY_MODE_PT_PT);
8453 phba->hba_flag &= ~HBA_PERSISTENT_TOPO;
8458 /* If topology failover set - pt is '0' or '1' */
8459 phba->cfg_topology = (pt ? FLAGS_TOPOLOGY_MODE_PT_LOOP :
8460 FLAGS_TOPOLOGY_MODE_LOOP_PT);
8462 phba->cfg_topology = ((pt == LINK_FLAGS_P2P)
8463 ? FLAGS_TOPOLOGY_MODE_PT_PT
8464 : FLAGS_TOPOLOGY_MODE_LOOP);
8468 if (phba->hba_flag & HBA_PERSISTENT_TOPO) {
8469 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8470 "2020 Using persistent topology value [%s]",
8471 lpfc_topo_to_str[phba->cfg_topology]);
8473 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8474 "2021 Invalid topology values from FW "
8475 "Using driver parameter defined value [%s]",
8476 lpfc_topo_to_str[phba->cfg_topology]);
8481 * lpfc_sli4_read_config - Get the config parameters.
8482 * @phba: pointer to lpfc hba data structure.
8484 * This routine is invoked to read the configuration parameters from the HBA.
8485 * The configuration parameters are used to set the base and maximum values
8486 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
8487 * allocation for the port.
8491 * -ENOMEM - No available memory
8492 * -EIO - The mailbox failed to complete successfully.
8495 lpfc_sli4_read_config(struct lpfc_hba *phba)
8498 struct lpfc_mbx_read_config *rd_config;
8499 union lpfc_sli4_cfg_shdr *shdr;
8500 uint32_t shdr_status, shdr_add_status;
8501 struct lpfc_mbx_get_func_cfg *get_func_cfg;
8502 struct lpfc_rsrc_desc_fcfcoe *desc;
8504 uint16_t forced_link_speed;
8505 uint32_t if_type, qmin;
8506 int length, i, rc = 0, rc2;
8508 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8510 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8511 "2011 Unable to allocate memory for issuing "
8512 "SLI_CONFIG_SPECIAL mailbox command\n");
8516 lpfc_read_config(phba, pmb);
8518 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8519 if (rc != MBX_SUCCESS) {
8520 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8521 "2012 Mailbox failed , mbxCmd x%x "
8522 "READ_CONFIG, mbxStatus x%x\n",
8523 bf_get(lpfc_mqe_command, &pmb->u.mqe),
8524 bf_get(lpfc_mqe_status, &pmb->u.mqe));
8527 rd_config = &pmb->u.mqe.un.rd_config;
8528 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
8529 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
8530 phba->sli4_hba.lnk_info.lnk_tp =
8531 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
8532 phba->sli4_hba.lnk_info.lnk_no =
8533 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
8534 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8535 "3081 lnk_type:%d, lnk_numb:%d\n",
8536 phba->sli4_hba.lnk_info.lnk_tp,
8537 phba->sli4_hba.lnk_info.lnk_no);
8539 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8540 "3082 Mailbox (x%x) returned ldv:x0\n",
8541 bf_get(lpfc_mqe_command, &pmb->u.mqe));
8542 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
8543 phba->bbcredit_support = 1;
8544 phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
8547 phba->sli4_hba.conf_trunk =
8548 bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
8549 phba->sli4_hba.extents_in_use =
8550 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
8551 phba->sli4_hba.max_cfg_param.max_xri =
8552 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
8553 /* Reduce resource usage in kdump environment */
8554 if (is_kdump_kernel() &&
8555 phba->sli4_hba.max_cfg_param.max_xri > 512)
8556 phba->sli4_hba.max_cfg_param.max_xri = 512;
8557 phba->sli4_hba.max_cfg_param.xri_base =
8558 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
8559 phba->sli4_hba.max_cfg_param.max_vpi =
8560 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
8561 /* Limit the max we support */
8562 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
8563 phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
8564 phba->sli4_hba.max_cfg_param.vpi_base =
8565 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
8566 phba->sli4_hba.max_cfg_param.max_rpi =
8567 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
8568 phba->sli4_hba.max_cfg_param.rpi_base =
8569 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
8570 phba->sli4_hba.max_cfg_param.max_vfi =
8571 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
8572 phba->sli4_hba.max_cfg_param.vfi_base =
8573 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
8574 phba->sli4_hba.max_cfg_param.max_fcfi =
8575 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
8576 phba->sli4_hba.max_cfg_param.max_eq =
8577 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
8578 phba->sli4_hba.max_cfg_param.max_rq =
8579 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
8580 phba->sli4_hba.max_cfg_param.max_wq =
8581 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
8582 phba->sli4_hba.max_cfg_param.max_cq =
8583 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
8584 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
8585 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
8586 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
8587 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
8588 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
8589 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
8590 phba->max_vports = phba->max_vpi;
8591 lpfc_map_topology(phba, rd_config);
8592 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8593 "2003 cfg params Extents? %d "
8598 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d lmt:x%x\n",
8599 phba->sli4_hba.extents_in_use,
8600 phba->sli4_hba.max_cfg_param.xri_base,
8601 phba->sli4_hba.max_cfg_param.max_xri,
8602 phba->sli4_hba.max_cfg_param.vpi_base,
8603 phba->sli4_hba.max_cfg_param.max_vpi,
8604 phba->sli4_hba.max_cfg_param.vfi_base,
8605 phba->sli4_hba.max_cfg_param.max_vfi,
8606 phba->sli4_hba.max_cfg_param.rpi_base,
8607 phba->sli4_hba.max_cfg_param.max_rpi,
8608 phba->sli4_hba.max_cfg_param.max_fcfi,
8609 phba->sli4_hba.max_cfg_param.max_eq,
8610 phba->sli4_hba.max_cfg_param.max_cq,
8611 phba->sli4_hba.max_cfg_param.max_wq,
8612 phba->sli4_hba.max_cfg_param.max_rq,
8616 * Calculate queue resources based on how
8617 * many WQ/CQ/EQs are available.
8619 qmin = phba->sli4_hba.max_cfg_param.max_wq;
8620 if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
8621 qmin = phba->sli4_hba.max_cfg_param.max_cq;
8622 if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
8623 qmin = phba->sli4_hba.max_cfg_param.max_eq;
8625 * Whats left after this can go toward NVME / FCP.
8626 * The minus 4 accounts for ELS, NVME LS, MBOX
8627 * plus one extra. When configured for
8628 * NVMET, FCP io channel WQs are not created.
8632 /* Check to see if there is enough for NVME */
8633 if ((phba->cfg_irq_chann > qmin) ||
8634 (phba->cfg_hdw_queue > qmin)) {
8635 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8636 "2005 Reducing Queues - "
8637 "FW resource limitation: "
8638 "WQ %d CQ %d EQ %d: min %d: "
8640 phba->sli4_hba.max_cfg_param.max_wq,
8641 phba->sli4_hba.max_cfg_param.max_cq,
8642 phba->sli4_hba.max_cfg_param.max_eq,
8643 qmin, phba->cfg_irq_chann,
8644 phba->cfg_hdw_queue);
8646 if (phba->cfg_irq_chann > qmin)
8647 phba->cfg_irq_chann = qmin;
8648 if (phba->cfg_hdw_queue > qmin)
8649 phba->cfg_hdw_queue = qmin;
8656 /* Update link speed if forced link speed is supported */
8657 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8658 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
8660 bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
8661 if (forced_link_speed) {
8662 phba->hba_flag |= HBA_FORCED_LINK_SPEED;
8664 switch (forced_link_speed) {
8666 phba->cfg_link_speed =
8667 LPFC_USER_LINK_SPEED_1G;
8670 phba->cfg_link_speed =
8671 LPFC_USER_LINK_SPEED_2G;
8674 phba->cfg_link_speed =
8675 LPFC_USER_LINK_SPEED_4G;
8678 phba->cfg_link_speed =
8679 LPFC_USER_LINK_SPEED_8G;
8681 case LINK_SPEED_10G:
8682 phba->cfg_link_speed =
8683 LPFC_USER_LINK_SPEED_10G;
8685 case LINK_SPEED_16G:
8686 phba->cfg_link_speed =
8687 LPFC_USER_LINK_SPEED_16G;
8689 case LINK_SPEED_32G:
8690 phba->cfg_link_speed =
8691 LPFC_USER_LINK_SPEED_32G;
8693 case LINK_SPEED_64G:
8694 phba->cfg_link_speed =
8695 LPFC_USER_LINK_SPEED_64G;
8698 phba->cfg_link_speed =
8699 LPFC_USER_LINK_SPEED_AUTO;
8702 lpfc_printf_log(phba, KERN_ERR,
8704 "0047 Unrecognized link "
8707 phba->cfg_link_speed =
8708 LPFC_USER_LINK_SPEED_AUTO;
8713 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
8714 length = phba->sli4_hba.max_cfg_param.max_xri -
8715 lpfc_sli4_get_els_iocb_cnt(phba);
8716 if (phba->cfg_hba_queue_depth > length) {
8717 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8718 "3361 HBA queue depth changed from %d to %d\n",
8719 phba->cfg_hba_queue_depth, length);
8720 phba->cfg_hba_queue_depth = length;
8723 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
8724 LPFC_SLI_INTF_IF_TYPE_2)
8727 /* get the pf# and vf# for SLI4 if_type 2 port */
8728 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
8729 sizeof(struct lpfc_sli4_cfg_mhdr));
8730 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
8731 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
8732 length, LPFC_SLI4_MBX_EMBED);
8734 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8735 shdr = (union lpfc_sli4_cfg_shdr *)
8736 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
8737 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8738 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8739 if (rc2 || shdr_status || shdr_add_status) {
8740 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8741 "3026 Mailbox failed , mbxCmd x%x "
8742 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
8743 bf_get(lpfc_mqe_command, &pmb->u.mqe),
8744 bf_get(lpfc_mqe_status, &pmb->u.mqe));
8748 /* search for fc_fcoe resrouce descriptor */
8749 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
8751 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
8752 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
8753 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
8754 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
8755 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
8756 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
8759 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
8760 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
8761 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
8762 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
8763 phba->sli4_hba.iov.pf_number =
8764 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
8765 phba->sli4_hba.iov.vf_number =
8766 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
8771 if (i < LPFC_RSRC_DESC_MAX_NUM)
8772 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8773 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
8774 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
8775 phba->sli4_hba.iov.vf_number);
8777 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8778 "3028 GET_FUNCTION_CONFIG: failed to find "
8779 "Resource Descriptor:x%x\n",
8780 LPFC_RSRC_DESC_TYPE_FCFCOE);
8783 mempool_free(pmb, phba->mbox_mem_pool);
8788 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
8789 * @phba: pointer to lpfc hba data structure.
8791 * This routine is invoked to setup the port-side endian order when
8792 * the port if_type is 0. This routine has no function for other
8797 * -ENOMEM - No available memory
8798 * -EIO - The mailbox failed to complete successfully.
8801 lpfc_setup_endian_order(struct lpfc_hba *phba)
8803 LPFC_MBOXQ_t *mboxq;
8804 uint32_t if_type, rc = 0;
8805 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
8806 HOST_ENDIAN_HIGH_WORD1};
8808 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8810 case LPFC_SLI_INTF_IF_TYPE_0:
8811 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8814 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8815 "0492 Unable to allocate memory for "
8816 "issuing SLI_CONFIG_SPECIAL mailbox "
8822 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
8823 * two words to contain special data values and no other data.
8825 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
8826 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
8827 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8828 if (rc != MBX_SUCCESS) {
8829 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8830 "0493 SLI_CONFIG_SPECIAL mailbox "
8831 "failed with status x%x\n",
8835 mempool_free(mboxq, phba->mbox_mem_pool);
8837 case LPFC_SLI_INTF_IF_TYPE_6:
8838 case LPFC_SLI_INTF_IF_TYPE_2:
8839 case LPFC_SLI_INTF_IF_TYPE_1:
8847 * lpfc_sli4_queue_verify - Verify and update EQ counts
8848 * @phba: pointer to lpfc hba data structure.
8850 * This routine is invoked to check the user settable queue counts for EQs.
8851 * After this routine is called the counts will be set to valid values that
8852 * adhere to the constraints of the system's interrupt vectors and the port's
8857 * -ENOMEM - No available memory
8860 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
8863 * Sanity check for configured queue parameters against the run-time
8867 if (phba->nvmet_support) {
8868 if (phba->cfg_hdw_queue < phba->cfg_nvmet_mrq)
8869 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
8870 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
8871 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
8874 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8875 "2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
8876 phba->cfg_hdw_queue, phba->cfg_irq_chann,
8877 phba->cfg_nvmet_mrq);
8879 /* Get EQ depth from module parameter, fake the default for now */
8880 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8881 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8883 /* Get CQ depth from module parameter, fake the default for now */
8884 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8885 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8890 lpfc_alloc_io_wq_cq(struct lpfc_hba *phba, int idx)
8892 struct lpfc_queue *qdesc;
8896 cpu = lpfc_find_cpu_handle(phba, idx, LPFC_FIND_BY_HDWQ);
8897 /* Create Fast Path IO CQs */
8898 if (phba->enab_exp_wqcq_pages)
8899 /* Increase the CQ size when WQEs contain an embedded cdb */
8900 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8901 phba->sli4_hba.cq_esize,
8902 LPFC_CQE_EXP_COUNT, cpu);
8905 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8906 phba->sli4_hba.cq_esize,
8907 phba->sli4_hba.cq_ecount, cpu);
8909 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8910 "0499 Failed allocate fast-path IO CQ (%d)\n",
8914 qdesc->qe_valid = 1;
8917 phba->sli4_hba.hdwq[idx].io_cq = qdesc;
8919 /* Create Fast Path IO WQs */
8920 if (phba->enab_exp_wqcq_pages) {
8921 /* Increase the WQ size when WQEs contain an embedded cdb */
8922 wqesize = (phba->fcp_embed_io) ?
8923 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
8924 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8926 LPFC_WQE_EXP_COUNT, cpu);
8928 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8929 phba->sli4_hba.wq_esize,
8930 phba->sli4_hba.wq_ecount, cpu);
8933 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8934 "0503 Failed allocate fast-path IO WQ (%d)\n",
8940 phba->sli4_hba.hdwq[idx].io_wq = qdesc;
8941 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8946 * lpfc_sli4_queue_create - Create all the SLI4 queues
8947 * @phba: pointer to lpfc hba data structure.
8949 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
8950 * operation. For each SLI4 queue type, the parameters such as queue entry
8951 * count (queue depth) shall be taken from the module parameter. For now,
8952 * we just use some constant number as place holder.
8956 * -ENOMEM - No availble memory
8957 * -EIO - The mailbox failed to complete successfully.
8960 lpfc_sli4_queue_create(struct lpfc_hba *phba)
8962 struct lpfc_queue *qdesc;
8963 int idx, cpu, eqcpu;
8964 struct lpfc_sli4_hdw_queue *qp;
8965 struct lpfc_vector_map_info *cpup;
8966 struct lpfc_vector_map_info *eqcpup;
8967 struct lpfc_eq_intr_info *eqi;
8970 * Create HBA Record arrays.
8971 * Both NVME and FCP will share that same vectors / EQs
8973 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
8974 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
8975 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
8976 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
8977 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
8978 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
8979 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8980 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8981 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8982 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8984 if (!phba->sli4_hba.hdwq) {
8985 phba->sli4_hba.hdwq = kcalloc(
8986 phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue),
8988 if (!phba->sli4_hba.hdwq) {
8989 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8990 "6427 Failed allocate memory for "
8991 "fast-path Hardware Queue array\n");
8994 /* Prepare hardware queues to take IO buffers */
8995 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8996 qp = &phba->sli4_hba.hdwq[idx];
8997 spin_lock_init(&qp->io_buf_list_get_lock);
8998 spin_lock_init(&qp->io_buf_list_put_lock);
8999 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
9000 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
9001 qp->get_io_bufs = 0;
9002 qp->put_io_bufs = 0;
9003 qp->total_io_bufs = 0;
9004 spin_lock_init(&qp->abts_io_buf_list_lock);
9005 INIT_LIST_HEAD(&qp->lpfc_abts_io_buf_list);
9006 qp->abts_scsi_io_bufs = 0;
9007 qp->abts_nvme_io_bufs = 0;
9008 INIT_LIST_HEAD(&qp->sgl_list);
9009 INIT_LIST_HEAD(&qp->cmd_rsp_buf_list);
9010 spin_lock_init(&qp->hdwq_lock);
9014 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9015 if (phba->nvmet_support) {
9016 phba->sli4_hba.nvmet_cqset = kcalloc(
9017 phba->cfg_nvmet_mrq,
9018 sizeof(struct lpfc_queue *),
9020 if (!phba->sli4_hba.nvmet_cqset) {
9021 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9022 "3121 Fail allocate memory for "
9023 "fast-path CQ set array\n");
9026 phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
9027 phba->cfg_nvmet_mrq,
9028 sizeof(struct lpfc_queue *),
9030 if (!phba->sli4_hba.nvmet_mrq_hdr) {
9031 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9032 "3122 Fail allocate memory for "
9033 "fast-path RQ set hdr array\n");
9036 phba->sli4_hba.nvmet_mrq_data = kcalloc(
9037 phba->cfg_nvmet_mrq,
9038 sizeof(struct lpfc_queue *),
9040 if (!phba->sli4_hba.nvmet_mrq_data) {
9041 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9042 "3124 Fail allocate memory for "
9043 "fast-path RQ set data array\n");
9049 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
9051 /* Create HBA Event Queues (EQs) */
9052 for_each_present_cpu(cpu) {
9053 /* We only want to create 1 EQ per vector, even though
9054 * multiple CPUs might be using that vector. so only
9055 * selects the CPUs that are LPFC_CPU_FIRST_IRQ.
9057 cpup = &phba->sli4_hba.cpu_map[cpu];
9058 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
9061 /* Get a ptr to the Hardware Queue associated with this CPU */
9062 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
9064 /* Allocate an EQ */
9065 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9066 phba->sli4_hba.eq_esize,
9067 phba->sli4_hba.eq_ecount, cpu);
9069 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9070 "0497 Failed allocate EQ (%d)\n",
9074 qdesc->qe_valid = 1;
9075 qdesc->hdwq = cpup->hdwq;
9076 qdesc->chann = cpu; /* First CPU this EQ is affinitized to */
9077 qdesc->last_cpu = qdesc->chann;
9079 /* Save the allocated EQ in the Hardware Queue */
9082 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
9083 list_add(&qdesc->cpu_list, &eqi->list);
9086 /* Now we need to populate the other Hardware Queues, that share
9087 * an IRQ vector, with the associated EQ ptr.
9089 for_each_present_cpu(cpu) {
9090 cpup = &phba->sli4_hba.cpu_map[cpu];
9092 /* Check for EQ already allocated in previous loop */
9093 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
9096 /* Check for multiple CPUs per hdwq */
9097 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
9101 /* We need to share an EQ for this hdwq */
9102 eqcpu = lpfc_find_cpu_handle(phba, cpup->eq, LPFC_FIND_BY_EQ);
9103 eqcpup = &phba->sli4_hba.cpu_map[eqcpu];
9104 qp->hba_eq = phba->sli4_hba.hdwq[eqcpup->hdwq].hba_eq;
9107 /* Allocate IO Path SLI4 CQ/WQs */
9108 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9109 if (lpfc_alloc_io_wq_cq(phba, idx))
9113 if (phba->nvmet_support) {
9114 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
9115 cpu = lpfc_find_cpu_handle(phba, idx,
9117 qdesc = lpfc_sli4_queue_alloc(phba,
9118 LPFC_DEFAULT_PAGE_SIZE,
9119 phba->sli4_hba.cq_esize,
9120 phba->sli4_hba.cq_ecount,
9123 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9124 "3142 Failed allocate NVME "
9125 "CQ Set (%d)\n", idx);
9128 qdesc->qe_valid = 1;
9131 phba->sli4_hba.nvmet_cqset[idx] = qdesc;
9136 * Create Slow Path Completion Queues (CQs)
9139 cpu = lpfc_find_cpu_handle(phba, 0, LPFC_FIND_BY_EQ);
9140 /* Create slow-path Mailbox Command Complete Queue */
9141 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9142 phba->sli4_hba.cq_esize,
9143 phba->sli4_hba.cq_ecount, cpu);
9145 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9146 "0500 Failed allocate slow-path mailbox CQ\n");
9149 qdesc->qe_valid = 1;
9150 phba->sli4_hba.mbx_cq = qdesc;
9152 /* Create slow-path ELS Complete Queue */
9153 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9154 phba->sli4_hba.cq_esize,
9155 phba->sli4_hba.cq_ecount, cpu);
9157 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9158 "0501 Failed allocate slow-path ELS CQ\n");
9161 qdesc->qe_valid = 1;
9163 phba->sli4_hba.els_cq = qdesc;
9167 * Create Slow Path Work Queues (WQs)
9170 /* Create Mailbox Command Queue */
9172 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9173 phba->sli4_hba.mq_esize,
9174 phba->sli4_hba.mq_ecount, cpu);
9176 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9177 "0505 Failed allocate slow-path MQ\n");
9181 phba->sli4_hba.mbx_wq = qdesc;
9184 * Create ELS Work Queues
9187 /* Create slow-path ELS Work Queue */
9188 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9189 phba->sli4_hba.wq_esize,
9190 phba->sli4_hba.wq_ecount, cpu);
9192 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9193 "0504 Failed allocate slow-path ELS WQ\n");
9197 phba->sli4_hba.els_wq = qdesc;
9198 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
9200 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9201 /* Create NVME LS Complete Queue */
9202 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9203 phba->sli4_hba.cq_esize,
9204 phba->sli4_hba.cq_ecount, cpu);
9206 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9207 "6079 Failed allocate NVME LS CQ\n");
9211 qdesc->qe_valid = 1;
9212 phba->sli4_hba.nvmels_cq = qdesc;
9214 /* Create NVME LS Work Queue */
9215 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9216 phba->sli4_hba.wq_esize,
9217 phba->sli4_hba.wq_ecount, cpu);
9219 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9220 "6080 Failed allocate NVME LS WQ\n");
9224 phba->sli4_hba.nvmels_wq = qdesc;
9225 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
9229 * Create Receive Queue (RQ)
9232 /* Create Receive Queue for header */
9233 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9234 phba->sli4_hba.rq_esize,
9235 phba->sli4_hba.rq_ecount, cpu);
9237 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9238 "0506 Failed allocate receive HRQ\n");
9241 phba->sli4_hba.hdr_rq = qdesc;
9243 /* Create Receive Queue for data */
9244 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9245 phba->sli4_hba.rq_esize,
9246 phba->sli4_hba.rq_ecount, cpu);
9248 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9249 "0507 Failed allocate receive DRQ\n");
9252 phba->sli4_hba.dat_rq = qdesc;
9254 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
9255 phba->nvmet_support) {
9256 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
9257 cpu = lpfc_find_cpu_handle(phba, idx,
9259 /* Create NVMET Receive Queue for header */
9260 qdesc = lpfc_sli4_queue_alloc(phba,
9261 LPFC_DEFAULT_PAGE_SIZE,
9262 phba->sli4_hba.rq_esize,
9263 LPFC_NVMET_RQE_DEF_COUNT,
9266 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9267 "3146 Failed allocate "
9272 phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
9274 /* Only needed for header of RQ pair */
9275 qdesc->rqbp = kzalloc_node(sizeof(*qdesc->rqbp),
9278 if (qdesc->rqbp == NULL) {
9279 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9280 "6131 Failed allocate "
9285 /* Put list in known state in case driver load fails. */
9286 INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
9288 /* Create NVMET Receive Queue for data */
9289 qdesc = lpfc_sli4_queue_alloc(phba,
9290 LPFC_DEFAULT_PAGE_SIZE,
9291 phba->sli4_hba.rq_esize,
9292 LPFC_NVMET_RQE_DEF_COUNT,
9295 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9296 "3156 Failed allocate "
9301 phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
9305 /* Clear NVME stats */
9306 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9307 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9308 memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
9309 sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
9313 /* Clear SCSI stats */
9314 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
9315 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9316 memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
9317 sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
9324 lpfc_sli4_queue_destroy(phba);
9329 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
9332 lpfc_sli4_queue_free(*qp);
9338 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
9345 for (idx = 0; idx < max; idx++)
9346 __lpfc_sli4_release_queue(&(*qs)[idx]);
9353 lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
9355 struct lpfc_sli4_hdw_queue *hdwq;
9356 struct lpfc_queue *eq;
9359 hdwq = phba->sli4_hba.hdwq;
9361 /* Loop thru all Hardware Queues */
9362 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9363 /* Free the CQ/WQ corresponding to the Hardware Queue */
9364 lpfc_sli4_queue_free(hdwq[idx].io_cq);
9365 lpfc_sli4_queue_free(hdwq[idx].io_wq);
9366 hdwq[idx].hba_eq = NULL;
9367 hdwq[idx].io_cq = NULL;
9368 hdwq[idx].io_wq = NULL;
9369 if (phba->cfg_xpsgl && !phba->nvmet_support)
9370 lpfc_free_sgl_per_hdwq(phba, &hdwq[idx]);
9371 lpfc_free_cmd_rsp_buf_per_hdwq(phba, &hdwq[idx]);
9373 /* Loop thru all IRQ vectors */
9374 for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
9375 /* Free the EQ corresponding to the IRQ vector */
9376 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
9377 lpfc_sli4_queue_free(eq);
9378 phba->sli4_hba.hba_eq_hdl[idx].eq = NULL;
9383 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
9384 * @phba: pointer to lpfc hba data structure.
9386 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
9391 * -ENOMEM - No available memory
9392 * -EIO - The mailbox failed to complete successfully.
9395 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
9398 * Set FREE_INIT before beginning to free the queues.
9399 * Wait until the users of queues to acknowledge to
9400 * release queues by clearing FREE_WAIT.
9402 spin_lock_irq(&phba->hbalock);
9403 phba->sli.sli_flag |= LPFC_QUEUE_FREE_INIT;
9404 while (phba->sli.sli_flag & LPFC_QUEUE_FREE_WAIT) {
9405 spin_unlock_irq(&phba->hbalock);
9407 spin_lock_irq(&phba->hbalock);
9409 spin_unlock_irq(&phba->hbalock);
9411 lpfc_sli4_cleanup_poll_list(phba);
9413 /* Release HBA eqs */
9414 if (phba->sli4_hba.hdwq)
9415 lpfc_sli4_release_hdwq(phba);
9417 if (phba->nvmet_support) {
9418 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
9419 phba->cfg_nvmet_mrq);
9421 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
9422 phba->cfg_nvmet_mrq);
9423 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
9424 phba->cfg_nvmet_mrq);
9427 /* Release mailbox command work queue */
9428 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
9430 /* Release ELS work queue */
9431 __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
9433 /* Release ELS work queue */
9434 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
9436 /* Release unsolicited receive queue */
9437 __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
9438 __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
9440 /* Release ELS complete queue */
9441 __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
9443 /* Release NVME LS complete queue */
9444 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
9446 /* Release mailbox command complete queue */
9447 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
9449 /* Everything on this list has been freed */
9450 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
9452 /* Done with freeing the queues */
9453 spin_lock_irq(&phba->hbalock);
9454 phba->sli.sli_flag &= ~LPFC_QUEUE_FREE_INIT;
9455 spin_unlock_irq(&phba->hbalock);
9459 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
9461 struct lpfc_rqb *rqbp;
9462 struct lpfc_dmabuf *h_buf;
9463 struct rqb_dmabuf *rqb_buffer;
9466 while (!list_empty(&rqbp->rqb_buffer_list)) {
9467 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
9468 struct lpfc_dmabuf, list);
9470 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
9471 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
9472 rqbp->buffer_count--;
9478 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
9479 struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
9480 int qidx, uint32_t qtype)
9482 struct lpfc_sli_ring *pring;
9485 if (!eq || !cq || !wq) {
9486 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9487 "6085 Fast-path %s (%d) not allocated\n",
9488 ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
9492 /* create the Cq first */
9493 rc = lpfc_cq_create(phba, cq, eq,
9494 (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
9496 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9497 "6086 Failed setup of CQ (%d), rc = 0x%x\n",
9498 qidx, (uint32_t)rc);
9502 if (qtype != LPFC_MBOX) {
9503 /* Setup cq_map for fast lookup */
9505 *cq_map = cq->queue_id;
9507 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9508 "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
9509 qidx, cq->queue_id, qidx, eq->queue_id);
9512 rc = lpfc_wq_create(phba, wq, cq, qtype);
9514 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9515 "4618 Fail setup fastpath WQ (%d), rc = 0x%x\n",
9516 qidx, (uint32_t)rc);
9517 /* no need to tear down cq - caller will do so */
9521 /* Bind this CQ/WQ to the NVME ring */
9523 pring->sli.sli4.wqp = (void *)wq;
9526 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9527 "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
9528 qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
9530 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
9532 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9533 "0539 Failed setup of slow-path MQ: "
9535 /* no need to tear down cq - caller will do so */
9539 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9540 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
9541 phba->sli4_hba.mbx_wq->queue_id,
9542 phba->sli4_hba.mbx_cq->queue_id);
9549 * lpfc_setup_cq_lookup - Setup the CQ lookup table
9550 * @phba: pointer to lpfc hba data structure.
9552 * This routine will populate the cq_lookup table by all
9553 * available CQ queue_id's.
9556 lpfc_setup_cq_lookup(struct lpfc_hba *phba)
9558 struct lpfc_queue *eq, *childq;
9561 memset(phba->sli4_hba.cq_lookup, 0,
9562 (sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
9563 /* Loop thru all IRQ vectors */
9564 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9565 /* Get the EQ corresponding to the IRQ vector */
9566 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
9569 /* Loop through all CQs associated with that EQ */
9570 list_for_each_entry(childq, &eq->child_list, list) {
9571 if (childq->queue_id > phba->sli4_hba.cq_max)
9573 if (childq->subtype == LPFC_IO)
9574 phba->sli4_hba.cq_lookup[childq->queue_id] =
9581 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
9582 * @phba: pointer to lpfc hba data structure.
9584 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
9589 * -ENOMEM - No available memory
9590 * -EIO - The mailbox failed to complete successfully.
9593 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
9595 uint32_t shdr_status, shdr_add_status;
9596 union lpfc_sli4_cfg_shdr *shdr;
9597 struct lpfc_vector_map_info *cpup;
9598 struct lpfc_sli4_hdw_queue *qp;
9599 LPFC_MBOXQ_t *mboxq;
9601 uint32_t length, usdelay;
9604 /* Check for dual-ULP support */
9605 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9607 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9608 "3249 Unable to allocate memory for "
9609 "QUERY_FW_CFG mailbox command\n");
9612 length = (sizeof(struct lpfc_mbx_query_fw_config) -
9613 sizeof(struct lpfc_sli4_cfg_mhdr));
9614 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9615 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
9616 length, LPFC_SLI4_MBX_EMBED);
9618 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9620 shdr = (union lpfc_sli4_cfg_shdr *)
9621 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9622 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9623 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9624 if (shdr_status || shdr_add_status || rc) {
9625 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9626 "3250 QUERY_FW_CFG mailbox failed with status "
9627 "x%x add_status x%x, mbx status x%x\n",
9628 shdr_status, shdr_add_status, rc);
9629 mempool_free(mboxq, phba->mbox_mem_pool);
9634 phba->sli4_hba.fw_func_mode =
9635 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
9636 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
9637 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
9638 phba->sli4_hba.physical_port =
9639 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
9640 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9641 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
9642 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
9643 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
9645 mempool_free(mboxq, phba->mbox_mem_pool);
9648 * Set up HBA Event Queues (EQs)
9650 qp = phba->sli4_hba.hdwq;
9652 /* Set up HBA event queue */
9654 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9655 "3147 Fast-path EQs not allocated\n");
9660 /* Loop thru all IRQ vectors */
9661 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9662 /* Create HBA Event Queues (EQs) in order */
9663 for_each_present_cpu(cpu) {
9664 cpup = &phba->sli4_hba.cpu_map[cpu];
9666 /* Look for the CPU thats using that vector with
9667 * LPFC_CPU_FIRST_IRQ set.
9669 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
9671 if (qidx != cpup->eq)
9674 /* Create an EQ for that vector */
9675 rc = lpfc_eq_create(phba, qp[cpup->hdwq].hba_eq,
9676 phba->cfg_fcp_imax);
9678 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9679 "0523 Failed setup of fast-path"
9680 " EQ (%d), rc = 0x%x\n",
9681 cpup->eq, (uint32_t)rc);
9685 /* Save the EQ for that vector in the hba_eq_hdl */
9686 phba->sli4_hba.hba_eq_hdl[cpup->eq].eq =
9687 qp[cpup->hdwq].hba_eq;
9689 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9690 "2584 HBA EQ setup: queue[%d]-id=%d\n",
9692 qp[cpup->hdwq].hba_eq->queue_id);
9696 /* Loop thru all Hardware Queues */
9697 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9698 cpu = lpfc_find_cpu_handle(phba, qidx, LPFC_FIND_BY_HDWQ);
9699 cpup = &phba->sli4_hba.cpu_map[cpu];
9701 /* Create the CQ/WQ corresponding to the Hardware Queue */
9702 rc = lpfc_create_wq_cq(phba,
9703 phba->sli4_hba.hdwq[cpup->hdwq].hba_eq,
9706 &phba->sli4_hba.hdwq[qidx].io_cq_map,
9710 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9711 "0535 Failed to setup fastpath "
9712 "IO WQ/CQ (%d), rc = 0x%x\n",
9713 qidx, (uint32_t)rc);
9719 * Set up Slow Path Complete Queues (CQs)
9722 /* Set up slow-path MBOX CQ/MQ */
9724 if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
9725 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9726 "0528 %s not allocated\n",
9727 phba->sli4_hba.mbx_cq ?
9728 "Mailbox WQ" : "Mailbox CQ");
9733 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9734 phba->sli4_hba.mbx_cq,
9735 phba->sli4_hba.mbx_wq,
9736 NULL, 0, LPFC_MBOX);
9738 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9739 "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
9743 if (phba->nvmet_support) {
9744 if (!phba->sli4_hba.nvmet_cqset) {
9745 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9746 "3165 Fast-path NVME CQ Set "
9747 "array not allocated\n");
9751 if (phba->cfg_nvmet_mrq > 1) {
9752 rc = lpfc_cq_create_set(phba,
9753 phba->sli4_hba.nvmet_cqset,
9755 LPFC_WCQ, LPFC_NVMET);
9757 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9758 "3164 Failed setup of NVME CQ "
9764 /* Set up NVMET Receive Complete Queue */
9765 rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
9767 LPFC_WCQ, LPFC_NVMET);
9769 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9770 "6089 Failed setup NVMET CQ: "
9771 "rc = 0x%x\n", (uint32_t)rc);
9774 phba->sli4_hba.nvmet_cqset[0]->chann = 0;
9776 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9777 "6090 NVMET CQ setup: cq-id=%d, "
9778 "parent eq-id=%d\n",
9779 phba->sli4_hba.nvmet_cqset[0]->queue_id,
9780 qp[0].hba_eq->queue_id);
9784 /* Set up slow-path ELS WQ/CQ */
9785 if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
9786 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9787 "0530 ELS %s not allocated\n",
9788 phba->sli4_hba.els_cq ? "WQ" : "CQ");
9792 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9793 phba->sli4_hba.els_cq,
9794 phba->sli4_hba.els_wq,
9797 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9798 "0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
9802 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9803 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
9804 phba->sli4_hba.els_wq->queue_id,
9805 phba->sli4_hba.els_cq->queue_id);
9807 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9808 /* Set up NVME LS Complete Queue */
9809 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
9810 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9811 "6091 LS %s not allocated\n",
9812 phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
9816 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9817 phba->sli4_hba.nvmels_cq,
9818 phba->sli4_hba.nvmels_wq,
9819 NULL, 0, LPFC_NVME_LS);
9821 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9822 "0526 Failed setup of NVVME LS WQ/CQ: "
9823 "rc = 0x%x\n", (uint32_t)rc);
9827 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9828 "6096 ELS WQ setup: wq-id=%d, "
9829 "parent cq-id=%d\n",
9830 phba->sli4_hba.nvmels_wq->queue_id,
9831 phba->sli4_hba.nvmels_cq->queue_id);
9835 * Create NVMET Receive Queue (RQ)
9837 if (phba->nvmet_support) {
9838 if ((!phba->sli4_hba.nvmet_cqset) ||
9839 (!phba->sli4_hba.nvmet_mrq_hdr) ||
9840 (!phba->sli4_hba.nvmet_mrq_data)) {
9841 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9842 "6130 MRQ CQ Queues not "
9847 if (phba->cfg_nvmet_mrq > 1) {
9848 rc = lpfc_mrq_create(phba,
9849 phba->sli4_hba.nvmet_mrq_hdr,
9850 phba->sli4_hba.nvmet_mrq_data,
9851 phba->sli4_hba.nvmet_cqset,
9854 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9855 "6098 Failed setup of NVMET "
9862 rc = lpfc_rq_create(phba,
9863 phba->sli4_hba.nvmet_mrq_hdr[0],
9864 phba->sli4_hba.nvmet_mrq_data[0],
9865 phba->sli4_hba.nvmet_cqset[0],
9868 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9869 "6057 Failed setup of NVMET "
9870 "Receive Queue: rc = 0x%x\n",
9876 phba, KERN_INFO, LOG_INIT,
9877 "6099 NVMET RQ setup: hdr-rq-id=%d, "
9878 "dat-rq-id=%d parent cq-id=%d\n",
9879 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
9880 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
9881 phba->sli4_hba.nvmet_cqset[0]->queue_id);
9886 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
9887 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9888 "0540 Receive Queue not allocated\n");
9893 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
9894 phba->sli4_hba.els_cq, LPFC_USOL);
9896 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9897 "0541 Failed setup of Receive Queue: "
9898 "rc = 0x%x\n", (uint32_t)rc);
9902 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9903 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
9904 "parent cq-id=%d\n",
9905 phba->sli4_hba.hdr_rq->queue_id,
9906 phba->sli4_hba.dat_rq->queue_id,
9907 phba->sli4_hba.els_cq->queue_id);
9909 if (phba->cfg_fcp_imax)
9910 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
9914 for (qidx = 0; qidx < phba->cfg_irq_chann;
9915 qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
9916 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
9919 if (phba->sli4_hba.cq_max) {
9920 kfree(phba->sli4_hba.cq_lookup);
9921 phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1),
9922 sizeof(struct lpfc_queue *), GFP_KERNEL);
9923 if (!phba->sli4_hba.cq_lookup) {
9924 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9925 "0549 Failed setup of CQ Lookup table: "
9926 "size 0x%x\n", phba->sli4_hba.cq_max);
9930 lpfc_setup_cq_lookup(phba);
9935 lpfc_sli4_queue_unset(phba);
9941 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
9942 * @phba: pointer to lpfc hba data structure.
9944 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
9949 * -ENOMEM - No available memory
9950 * -EIO - The mailbox failed to complete successfully.
9953 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
9955 struct lpfc_sli4_hdw_queue *qp;
9956 struct lpfc_queue *eq;
9959 /* Unset mailbox command work queue */
9960 if (phba->sli4_hba.mbx_wq)
9961 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
9963 /* Unset NVME LS work queue */
9964 if (phba->sli4_hba.nvmels_wq)
9965 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
9967 /* Unset ELS work queue */
9968 if (phba->sli4_hba.els_wq)
9969 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
9971 /* Unset unsolicited receive queue */
9972 if (phba->sli4_hba.hdr_rq)
9973 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
9974 phba->sli4_hba.dat_rq);
9976 /* Unset mailbox command complete queue */
9977 if (phba->sli4_hba.mbx_cq)
9978 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
9980 /* Unset ELS complete queue */
9981 if (phba->sli4_hba.els_cq)
9982 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
9984 /* Unset NVME LS complete queue */
9985 if (phba->sli4_hba.nvmels_cq)
9986 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
9988 if (phba->nvmet_support) {
9989 /* Unset NVMET MRQ queue */
9990 if (phba->sli4_hba.nvmet_mrq_hdr) {
9991 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9994 phba->sli4_hba.nvmet_mrq_hdr[qidx],
9995 phba->sli4_hba.nvmet_mrq_data[qidx]);
9998 /* Unset NVMET CQ Set complete queue */
9999 if (phba->sli4_hba.nvmet_cqset) {
10000 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
10002 phba, phba->sli4_hba.nvmet_cqset[qidx]);
10006 /* Unset fast-path SLI4 queues */
10007 if (phba->sli4_hba.hdwq) {
10008 /* Loop thru all Hardware Queues */
10009 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
10010 /* Destroy the CQ/WQ corresponding to Hardware Queue */
10011 qp = &phba->sli4_hba.hdwq[qidx];
10012 lpfc_wq_destroy(phba, qp->io_wq);
10013 lpfc_cq_destroy(phba, qp->io_cq);
10015 /* Loop thru all IRQ vectors */
10016 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
10017 /* Destroy the EQ corresponding to the IRQ vector */
10018 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
10019 lpfc_eq_destroy(phba, eq);
10023 kfree(phba->sli4_hba.cq_lookup);
10024 phba->sli4_hba.cq_lookup = NULL;
10025 phba->sli4_hba.cq_max = 0;
10029 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
10030 * @phba: pointer to lpfc hba data structure.
10032 * This routine is invoked to allocate and set up a pool of completion queue
10033 * events. The body of the completion queue event is a completion queue entry
10034 * CQE. For now, this pool is used for the interrupt service routine to queue
10035 * the following HBA completion queue events for the worker thread to process:
10036 * - Mailbox asynchronous events
10037 * - Receive queue completion unsolicited events
10038 * Later, this can be used for all the slow-path events.
10042 * -ENOMEM - No available memory
10045 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
10047 struct lpfc_cq_event *cq_event;
10050 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
10051 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
10053 goto out_pool_create_fail;
10054 list_add_tail(&cq_event->list,
10055 &phba->sli4_hba.sp_cqe_event_pool);
10059 out_pool_create_fail:
10060 lpfc_sli4_cq_event_pool_destroy(phba);
10065 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
10066 * @phba: pointer to lpfc hba data structure.
10068 * This routine is invoked to free the pool of completion queue events at
10069 * driver unload time. Note that, it is the responsibility of the driver
10070 * cleanup routine to free all the outstanding completion-queue events
10071 * allocated from this pool back into the pool before invoking this routine
10072 * to destroy the pool.
10075 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
10077 struct lpfc_cq_event *cq_event, *next_cq_event;
10079 list_for_each_entry_safe(cq_event, next_cq_event,
10080 &phba->sli4_hba.sp_cqe_event_pool, list) {
10081 list_del(&cq_event->list);
10087 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
10088 * @phba: pointer to lpfc hba data structure.
10090 * This routine is the lock free version of the API invoked to allocate a
10091 * completion-queue event from the free pool.
10093 * Return: Pointer to the newly allocated completion-queue event if successful
10096 struct lpfc_cq_event *
10097 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
10099 struct lpfc_cq_event *cq_event = NULL;
10101 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
10102 struct lpfc_cq_event, list);
10107 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
10108 * @phba: pointer to lpfc hba data structure.
10110 * This routine is the lock version of the API invoked to allocate a
10111 * completion-queue event from the free pool.
10113 * Return: Pointer to the newly allocated completion-queue event if successful
10116 struct lpfc_cq_event *
10117 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
10119 struct lpfc_cq_event *cq_event;
10120 unsigned long iflags;
10122 spin_lock_irqsave(&phba->hbalock, iflags);
10123 cq_event = __lpfc_sli4_cq_event_alloc(phba);
10124 spin_unlock_irqrestore(&phba->hbalock, iflags);
10129 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
10130 * @phba: pointer to lpfc hba data structure.
10131 * @cq_event: pointer to the completion queue event to be freed.
10133 * This routine is the lock free version of the API invoked to release a
10134 * completion-queue event back into the free pool.
10137 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
10138 struct lpfc_cq_event *cq_event)
10140 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
10144 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
10145 * @phba: pointer to lpfc hba data structure.
10146 * @cq_event: pointer to the completion queue event to be freed.
10148 * This routine is the lock version of the API invoked to release a
10149 * completion-queue event back into the free pool.
10152 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
10153 struct lpfc_cq_event *cq_event)
10155 unsigned long iflags;
10156 spin_lock_irqsave(&phba->hbalock, iflags);
10157 __lpfc_sli4_cq_event_release(phba, cq_event);
10158 spin_unlock_irqrestore(&phba->hbalock, iflags);
10162 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
10163 * @phba: pointer to lpfc hba data structure.
10165 * This routine is to free all the pending completion-queue events to the
10166 * back into the free pool for device reset.
10169 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
10171 LIST_HEAD(cq_event_list);
10172 struct lpfc_cq_event *cq_event;
10173 unsigned long iflags;
10175 /* Retrieve all the pending WCQEs from pending WCQE lists */
10177 /* Pending ELS XRI abort events */
10178 spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
10179 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
10181 spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
10183 /* Pending asynnc events */
10184 spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
10185 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
10187 spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
10189 while (!list_empty(&cq_event_list)) {
10190 list_remove_head(&cq_event_list, cq_event,
10191 struct lpfc_cq_event, list);
10192 lpfc_sli4_cq_event_release(phba, cq_event);
10197 * lpfc_pci_function_reset - Reset pci function.
10198 * @phba: pointer to lpfc hba data structure.
10200 * This routine is invoked to request a PCI function reset. It will destroys
10201 * all resources assigned to the PCI function which originates this request.
10205 * -ENOMEM - No available memory
10206 * -EIO - The mailbox failed to complete successfully.
10209 lpfc_pci_function_reset(struct lpfc_hba *phba)
10211 LPFC_MBOXQ_t *mboxq;
10212 uint32_t rc = 0, if_type;
10213 uint32_t shdr_status, shdr_add_status;
10215 uint32_t port_reset = 0;
10216 union lpfc_sli4_cfg_shdr *shdr;
10217 struct lpfc_register reg_data;
10220 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10222 case LPFC_SLI_INTF_IF_TYPE_0:
10223 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
10226 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10227 "0494 Unable to allocate memory for "
10228 "issuing SLI_FUNCTION_RESET mailbox "
10233 /* Setup PCI function reset mailbox-ioctl command */
10234 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10235 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
10236 LPFC_SLI4_MBX_EMBED);
10237 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10238 shdr = (union lpfc_sli4_cfg_shdr *)
10239 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
10240 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10241 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
10243 mempool_free(mboxq, phba->mbox_mem_pool);
10244 if (shdr_status || shdr_add_status || rc) {
10245 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10246 "0495 SLI_FUNCTION_RESET mailbox "
10247 "failed with status x%x add_status x%x,"
10248 " mbx status x%x\n",
10249 shdr_status, shdr_add_status, rc);
10253 case LPFC_SLI_INTF_IF_TYPE_2:
10254 case LPFC_SLI_INTF_IF_TYPE_6:
10257 * Poll the Port Status Register and wait for RDY for
10258 * up to 30 seconds. If the port doesn't respond, treat
10261 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
10262 if (lpfc_readl(phba->sli4_hba.u.if_type2.
10263 STATUSregaddr, ®_data.word0)) {
10267 if (bf_get(lpfc_sliport_status_rdy, ®_data))
10272 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) {
10273 phba->work_status[0] = readl(
10274 phba->sli4_hba.u.if_type2.ERR1regaddr);
10275 phba->work_status[1] = readl(
10276 phba->sli4_hba.u.if_type2.ERR2regaddr);
10277 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10278 "2890 Port not ready, port status reg "
10279 "0x%x error 1=0x%x, error 2=0x%x\n",
10281 phba->work_status[0],
10282 phba->work_status[1]);
10289 * Reset the port now
10291 reg_data.word0 = 0;
10292 bf_set(lpfc_sliport_ctrl_end, ®_data,
10293 LPFC_SLIPORT_LITTLE_ENDIAN);
10294 bf_set(lpfc_sliport_ctrl_ip, ®_data,
10295 LPFC_SLIPORT_INIT_PORT);
10296 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
10299 pci_read_config_word(phba->pcidev,
10300 PCI_DEVICE_ID, &devid);
10305 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) {
10311 case LPFC_SLI_INTF_IF_TYPE_1:
10317 /* Catch the not-ready port failure after a port reset. */
10319 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10320 "3317 HBA not functional: IP Reset Failed "
10321 "try: echo fw_reset > board_mode\n");
10329 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
10330 * @phba: pointer to lpfc hba data structure.
10332 * This routine is invoked to set up the PCI device memory space for device
10333 * with SLI-4 interface spec.
10337 * other values - error
10340 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
10342 struct pci_dev *pdev = phba->pcidev;
10343 unsigned long bar0map_len, bar1map_len, bar2map_len;
10350 /* Set the device DMA mask size */
10351 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
10353 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
10358 * The BARs and register set definitions and offset locations are
10359 * dependent on the if_type.
10361 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
10362 &phba->sli4_hba.sli_intf.word0)) {
10366 /* There is no SLI3 failback for SLI4 devices. */
10367 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
10368 LPFC_SLI_INTF_VALID) {
10369 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10370 "2894 SLI_INTF reg contents invalid "
10371 "sli_intf reg 0x%x\n",
10372 phba->sli4_hba.sli_intf.word0);
10376 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10378 * Get the bus address of SLI4 device Bar regions and the
10379 * number of bytes required by each mapping. The mapping of the
10380 * particular PCI BARs regions is dependent on the type of
10383 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
10384 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
10385 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
10388 * Map SLI4 PCI Config Space Register base to a kernel virtual
10391 phba->sli4_hba.conf_regs_memmap_p =
10392 ioremap(phba->pci_bar0_map, bar0map_len);
10393 if (!phba->sli4_hba.conf_regs_memmap_p) {
10394 dev_printk(KERN_ERR, &pdev->dev,
10395 "ioremap failed for SLI4 PCI config "
10399 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
10400 /* Set up BAR0 PCI config space register memory map */
10401 lpfc_sli4_bar0_register_memmap(phba, if_type);
10403 phba->pci_bar0_map = pci_resource_start(pdev, 1);
10404 bar0map_len = pci_resource_len(pdev, 1);
10405 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
10406 dev_printk(KERN_ERR, &pdev->dev,
10407 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
10410 phba->sli4_hba.conf_regs_memmap_p =
10411 ioremap(phba->pci_bar0_map, bar0map_len);
10412 if (!phba->sli4_hba.conf_regs_memmap_p) {
10413 dev_printk(KERN_ERR, &pdev->dev,
10414 "ioremap failed for SLI4 PCI config "
10418 lpfc_sli4_bar0_register_memmap(phba, if_type);
10421 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10422 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
10424 * Map SLI4 if type 0 HBA Control Register base to a
10425 * kernel virtual address and setup the registers.
10427 phba->pci_bar1_map = pci_resource_start(pdev,
10429 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10430 phba->sli4_hba.ctrl_regs_memmap_p =
10431 ioremap(phba->pci_bar1_map,
10433 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
10434 dev_err(&pdev->dev,
10435 "ioremap failed for SLI4 HBA "
10436 "control registers.\n");
10438 goto out_iounmap_conf;
10440 phba->pci_bar2_memmap_p =
10441 phba->sli4_hba.ctrl_regs_memmap_p;
10442 lpfc_sli4_bar1_register_memmap(phba, if_type);
10445 goto out_iounmap_conf;
10449 if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
10450 (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
10452 * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
10453 * virtual address and setup the registers.
10455 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
10456 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10457 phba->sli4_hba.drbl_regs_memmap_p =
10458 ioremap(phba->pci_bar1_map, bar1map_len);
10459 if (!phba->sli4_hba.drbl_regs_memmap_p) {
10460 dev_err(&pdev->dev,
10461 "ioremap failed for SLI4 HBA doorbell registers.\n");
10463 goto out_iounmap_conf;
10465 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
10466 lpfc_sli4_bar1_register_memmap(phba, if_type);
10469 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10470 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10472 * Map SLI4 if type 0 HBA Doorbell Register base to
10473 * a kernel virtual address and setup the registers.
10475 phba->pci_bar2_map = pci_resource_start(pdev,
10477 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10478 phba->sli4_hba.drbl_regs_memmap_p =
10479 ioremap(phba->pci_bar2_map,
10481 if (!phba->sli4_hba.drbl_regs_memmap_p) {
10482 dev_err(&pdev->dev,
10483 "ioremap failed for SLI4 HBA"
10484 " doorbell registers.\n");
10486 goto out_iounmap_ctrl;
10488 phba->pci_bar4_memmap_p =
10489 phba->sli4_hba.drbl_regs_memmap_p;
10490 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
10492 goto out_iounmap_all;
10495 goto out_iounmap_all;
10499 if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
10500 pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10502 * Map SLI4 if type 6 HBA DPP Register base to a kernel
10503 * virtual address and setup the registers.
10505 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
10506 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10507 phba->sli4_hba.dpp_regs_memmap_p =
10508 ioremap(phba->pci_bar2_map, bar2map_len);
10509 if (!phba->sli4_hba.dpp_regs_memmap_p) {
10510 dev_err(&pdev->dev,
10511 "ioremap failed for SLI4 HBA dpp registers.\n");
10513 goto out_iounmap_ctrl;
10515 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
10518 /* Set up the EQ/CQ register handeling functions now */
10520 case LPFC_SLI_INTF_IF_TYPE_0:
10521 case LPFC_SLI_INTF_IF_TYPE_2:
10522 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
10523 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
10524 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
10526 case LPFC_SLI_INTF_IF_TYPE_6:
10527 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
10528 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
10529 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
10538 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10540 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10542 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10548 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
10549 * @phba: pointer to lpfc hba data structure.
10551 * This routine is invoked to unset the PCI device memory space for device
10552 * with SLI-4 interface spec.
10555 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
10558 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10561 case LPFC_SLI_INTF_IF_TYPE_0:
10562 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10563 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10564 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10566 case LPFC_SLI_INTF_IF_TYPE_2:
10567 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10569 case LPFC_SLI_INTF_IF_TYPE_6:
10570 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10571 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10572 if (phba->sli4_hba.dpp_regs_memmap_p)
10573 iounmap(phba->sli4_hba.dpp_regs_memmap_p);
10575 case LPFC_SLI_INTF_IF_TYPE_1:
10577 dev_printk(KERN_ERR, &phba->pcidev->dev,
10578 "FATAL - unsupported SLI4 interface type - %d\n",
10585 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
10586 * @phba: pointer to lpfc hba data structure.
10588 * This routine is invoked to enable the MSI-X interrupt vectors to device
10589 * with SLI-3 interface specs.
10593 * other values - error
10596 lpfc_sli_enable_msix(struct lpfc_hba *phba)
10601 /* Set up MSI-X multi-message vectors */
10602 rc = pci_alloc_irq_vectors(phba->pcidev,
10603 LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
10605 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10606 "0420 PCI enable MSI-X failed (%d)\n", rc);
10611 * Assign MSI-X vectors to interrupt handlers
10614 /* vector-0 is associated to slow-path handler */
10615 rc = request_irq(pci_irq_vector(phba->pcidev, 0),
10616 &lpfc_sli_sp_intr_handler, 0,
10617 LPFC_SP_DRIVER_HANDLER_NAME, phba);
10619 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10620 "0421 MSI-X slow-path request_irq failed "
10625 /* vector-1 is associated to fast-path handler */
10626 rc = request_irq(pci_irq_vector(phba->pcidev, 1),
10627 &lpfc_sli_fp_intr_handler, 0,
10628 LPFC_FP_DRIVER_HANDLER_NAME, phba);
10631 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10632 "0429 MSI-X fast-path request_irq failed "
10638 * Configure HBA MSI-X attention conditions to messages
10640 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10644 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10645 "0474 Unable to allocate memory for issuing "
10646 "MBOX_CONFIG_MSI command\n");
10649 rc = lpfc_config_msi(phba, pmb);
10652 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
10653 if (rc != MBX_SUCCESS) {
10654 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
10655 "0351 Config MSI mailbox command failed, "
10656 "mbxCmd x%x, mbxStatus x%x\n",
10657 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
10661 /* Free memory allocated for mailbox command */
10662 mempool_free(pmb, phba->mbox_mem_pool);
10666 /* Free memory allocated for mailbox command */
10667 mempool_free(pmb, phba->mbox_mem_pool);
10670 /* free the irq already requested */
10671 free_irq(pci_irq_vector(phba->pcidev, 1), phba);
10674 /* free the irq already requested */
10675 free_irq(pci_irq_vector(phba->pcidev, 0), phba);
10678 /* Unconfigure MSI-X capability structure */
10679 pci_free_irq_vectors(phba->pcidev);
10686 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
10687 * @phba: pointer to lpfc hba data structure.
10689 * This routine is invoked to enable the MSI interrupt mode to device with
10690 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
10691 * enable the MSI vector. The device driver is responsible for calling the
10692 * request_irq() to register MSI vector with a interrupt the handler, which
10693 * is done in this function.
10697 * other values - error
10700 lpfc_sli_enable_msi(struct lpfc_hba *phba)
10704 rc = pci_enable_msi(phba->pcidev);
10706 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10707 "0462 PCI enable MSI mode success.\n");
10709 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10710 "0471 PCI enable MSI mode failed (%d)\n", rc);
10714 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10715 0, LPFC_DRIVER_NAME, phba);
10717 pci_disable_msi(phba->pcidev);
10718 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10719 "0478 MSI request_irq failed (%d)\n", rc);
10725 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
10726 * @phba: pointer to lpfc hba data structure.
10727 * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
10729 * This routine is invoked to enable device interrupt and associate driver's
10730 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
10731 * spec. Depends on the interrupt mode configured to the driver, the driver
10732 * will try to fallback from the configured interrupt mode to an interrupt
10733 * mode which is supported by the platform, kernel, and device in the order
10735 * MSI-X -> MSI -> IRQ.
10739 * other values - error
10742 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10744 uint32_t intr_mode = LPFC_INTR_ERROR;
10747 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
10748 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
10751 phba->hba_flag &= ~HBA_NEEDS_CFG_PORT;
10753 if (cfg_mode == 2) {
10754 /* Now, try to enable MSI-X interrupt mode */
10755 retval = lpfc_sli_enable_msix(phba);
10757 /* Indicate initialization to MSI-X mode */
10758 phba->intr_type = MSIX;
10763 /* Fallback to MSI if MSI-X initialization failed */
10764 if (cfg_mode >= 1 && phba->intr_type == NONE) {
10765 retval = lpfc_sli_enable_msi(phba);
10767 /* Indicate initialization to MSI mode */
10768 phba->intr_type = MSI;
10773 /* Fallback to INTx if both MSI-X/MSI initalization failed */
10774 if (phba->intr_type == NONE) {
10775 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10776 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10778 /* Indicate initialization to INTx mode */
10779 phba->intr_type = INTx;
10787 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
10788 * @phba: pointer to lpfc hba data structure.
10790 * This routine is invoked to disable device interrupt and disassociate the
10791 * driver's interrupt handler(s) from interrupt vector(s) to device with
10792 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
10793 * release the interrupt vector(s) for the message signaled interrupt.
10796 lpfc_sli_disable_intr(struct lpfc_hba *phba)
10800 if (phba->intr_type == MSIX)
10801 nr_irqs = LPFC_MSIX_VECTORS;
10805 for (i = 0; i < nr_irqs; i++)
10806 free_irq(pci_irq_vector(phba->pcidev, i), phba);
10807 pci_free_irq_vectors(phba->pcidev);
10809 /* Reset interrupt management states */
10810 phba->intr_type = NONE;
10811 phba->sli.slistat.sli_intr = 0;
10815 * lpfc_find_cpu_handle - Find the CPU that corresponds to the specified Queue
10816 * @phba: pointer to lpfc hba data structure.
10817 * @id: EQ vector index or Hardware Queue index
10818 * @match: LPFC_FIND_BY_EQ = match by EQ
10819 * LPFC_FIND_BY_HDWQ = match by Hardware Queue
10820 * Return the CPU that matches the selection criteria
10823 lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
10825 struct lpfc_vector_map_info *cpup;
10828 /* Loop through all CPUs */
10829 for_each_present_cpu(cpu) {
10830 cpup = &phba->sli4_hba.cpu_map[cpu];
10832 /* If we are matching by EQ, there may be multiple CPUs using
10833 * using the same vector, so select the one with
10834 * LPFC_CPU_FIRST_IRQ set.
10836 if ((match == LPFC_FIND_BY_EQ) &&
10837 (cpup->flag & LPFC_CPU_FIRST_IRQ) &&
10841 /* If matching by HDWQ, select the first CPU that matches */
10842 if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
10850 * lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
10851 * @phba: pointer to lpfc hba data structure.
10852 * @cpu: CPU map index
10853 * @phys_id: CPU package physical id
10854 * @core_id: CPU core id
10857 lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
10858 uint16_t phys_id, uint16_t core_id)
10860 struct lpfc_vector_map_info *cpup;
10863 for_each_present_cpu(idx) {
10864 cpup = &phba->sli4_hba.cpu_map[idx];
10865 /* Does the cpup match the one we are looking for */
10866 if ((cpup->phys_id == phys_id) &&
10867 (cpup->core_id == core_id) &&
10876 * lpfc_assign_eq_map_info - Assigns eq for vector_map structure
10877 * @phba: pointer to lpfc hba data structure.
10878 * @eqidx: index for eq and irq vector
10879 * @flag: flags to set for vector_map structure
10880 * @cpu: cpu used to index vector_map structure
10882 * The routine assigns eq info into vector_map structure
10885 lpfc_assign_eq_map_info(struct lpfc_hba *phba, uint16_t eqidx, uint16_t flag,
10888 struct lpfc_vector_map_info *cpup = &phba->sli4_hba.cpu_map[cpu];
10889 struct lpfc_hba_eq_hdl *eqhdl = lpfc_get_eq_hdl(eqidx);
10892 cpup->flag |= flag;
10894 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10895 "3336 Set Affinity: CPU %d irq %d eq %d flag x%x\n",
10896 cpu, eqhdl->irq, cpup->eq, cpup->flag);
10900 * lpfc_cpu_map_array_init - Initialize cpu_map structure
10901 * @phba: pointer to lpfc hba data structure.
10903 * The routine initializes the cpu_map array structure
10906 lpfc_cpu_map_array_init(struct lpfc_hba *phba)
10908 struct lpfc_vector_map_info *cpup;
10909 struct lpfc_eq_intr_info *eqi;
10912 for_each_possible_cpu(cpu) {
10913 cpup = &phba->sli4_hba.cpu_map[cpu];
10914 cpup->phys_id = LPFC_VECTOR_MAP_EMPTY;
10915 cpup->core_id = LPFC_VECTOR_MAP_EMPTY;
10916 cpup->hdwq = LPFC_VECTOR_MAP_EMPTY;
10917 cpup->eq = LPFC_VECTOR_MAP_EMPTY;
10919 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, cpu);
10920 INIT_LIST_HEAD(&eqi->list);
10926 * lpfc_hba_eq_hdl_array_init - Initialize hba_eq_hdl structure
10927 * @phba: pointer to lpfc hba data structure.
10929 * The routine initializes the hba_eq_hdl array structure
10932 lpfc_hba_eq_hdl_array_init(struct lpfc_hba *phba)
10934 struct lpfc_hba_eq_hdl *eqhdl;
10937 for (i = 0; i < phba->cfg_irq_chann; i++) {
10938 eqhdl = lpfc_get_eq_hdl(i);
10939 eqhdl->irq = LPFC_VECTOR_MAP_EMPTY;
10940 eqhdl->phba = phba;
10945 * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
10946 * @phba: pointer to lpfc hba data structure.
10947 * @vectors: number of msix vectors allocated.
10949 * The routine will figure out the CPU affinity assignment for every
10950 * MSI-X vector allocated for the HBA.
10951 * In addition, the CPU to IO channel mapping will be calculated
10952 * and the phba->sli4_hba.cpu_map array will reflect this.
10955 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
10957 int i, cpu, idx, next_idx, new_cpu, start_cpu, first_cpu;
10958 int max_phys_id, min_phys_id;
10959 int max_core_id, min_core_id;
10960 struct lpfc_vector_map_info *cpup;
10961 struct lpfc_vector_map_info *new_cpup;
10963 struct cpuinfo_x86 *cpuinfo;
10965 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
10966 struct lpfc_hdwq_stat *c_stat;
10970 min_phys_id = LPFC_VECTOR_MAP_EMPTY;
10972 min_core_id = LPFC_VECTOR_MAP_EMPTY;
10974 /* Update CPU map with physical id and core id of each CPU */
10975 for_each_present_cpu(cpu) {
10976 cpup = &phba->sli4_hba.cpu_map[cpu];
10978 cpuinfo = &cpu_data(cpu);
10979 cpup->phys_id = cpuinfo->phys_proc_id;
10980 cpup->core_id = cpuinfo->cpu_core_id;
10981 if (lpfc_find_hyper(phba, cpu, cpup->phys_id, cpup->core_id))
10982 cpup->flag |= LPFC_CPU_MAP_HYPER;
10984 /* No distinction between CPUs for other platforms */
10986 cpup->core_id = cpu;
10989 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10990 "3328 CPU %d physid %d coreid %d flag x%x\n",
10991 cpu, cpup->phys_id, cpup->core_id, cpup->flag);
10993 if (cpup->phys_id > max_phys_id)
10994 max_phys_id = cpup->phys_id;
10995 if (cpup->phys_id < min_phys_id)
10996 min_phys_id = cpup->phys_id;
10998 if (cpup->core_id > max_core_id)
10999 max_core_id = cpup->core_id;
11000 if (cpup->core_id < min_core_id)
11001 min_core_id = cpup->core_id;
11004 /* After looking at each irq vector assigned to this pcidev, its
11005 * possible to see that not ALL CPUs have been accounted for.
11006 * Next we will set any unassigned (unaffinitized) cpu map
11007 * entries to a IRQ on the same phys_id.
11009 first_cpu = cpumask_first(cpu_present_mask);
11010 start_cpu = first_cpu;
11012 for_each_present_cpu(cpu) {
11013 cpup = &phba->sli4_hba.cpu_map[cpu];
11015 /* Is this CPU entry unassigned */
11016 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
11017 /* Mark CPU as IRQ not assigned by the kernel */
11018 cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
11020 /* If so, find a new_cpup thats on the the SAME
11021 * phys_id as cpup. start_cpu will start where we
11022 * left off so all unassigned entries don't get assgined
11023 * the IRQ of the first entry.
11025 new_cpu = start_cpu;
11026 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11027 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11028 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
11029 (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY) &&
11030 (new_cpup->phys_id == cpup->phys_id))
11032 new_cpu = cpumask_next(
11033 new_cpu, cpu_present_mask);
11034 if (new_cpu == nr_cpumask_bits)
11035 new_cpu = first_cpu;
11037 /* At this point, we leave the CPU as unassigned */
11040 /* We found a matching phys_id, so copy the IRQ info */
11041 cpup->eq = new_cpup->eq;
11043 /* Bump start_cpu to the next slot to minmize the
11044 * chance of having multiple unassigned CPU entries
11045 * selecting the same IRQ.
11047 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
11048 if (start_cpu == nr_cpumask_bits)
11049 start_cpu = first_cpu;
11051 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11052 "3337 Set Affinity: CPU %d "
11053 "eq %d from peer cpu %d same "
11055 cpu, cpup->eq, new_cpu,
11060 /* Set any unassigned cpu map entries to a IRQ on any phys_id */
11061 start_cpu = first_cpu;
11063 for_each_present_cpu(cpu) {
11064 cpup = &phba->sli4_hba.cpu_map[cpu];
11066 /* Is this entry unassigned */
11067 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
11068 /* Mark it as IRQ not assigned by the kernel */
11069 cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
11071 /* If so, find a new_cpup thats on ANY phys_id
11072 * as the cpup. start_cpu will start where we
11073 * left off so all unassigned entries don't get
11074 * assigned the IRQ of the first entry.
11076 new_cpu = start_cpu;
11077 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11078 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11079 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
11080 (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY))
11082 new_cpu = cpumask_next(
11083 new_cpu, cpu_present_mask);
11084 if (new_cpu == nr_cpumask_bits)
11085 new_cpu = first_cpu;
11087 /* We should never leave an entry unassigned */
11088 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11089 "3339 Set Affinity: CPU %d "
11090 "eq %d UNASSIGNED\n",
11091 cpup->hdwq, cpup->eq);
11094 /* We found an available entry, copy the IRQ info */
11095 cpup->eq = new_cpup->eq;
11097 /* Bump start_cpu to the next slot to minmize the
11098 * chance of having multiple unassigned CPU entries
11099 * selecting the same IRQ.
11101 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
11102 if (start_cpu == nr_cpumask_bits)
11103 start_cpu = first_cpu;
11105 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11106 "3338 Set Affinity: CPU %d "
11107 "eq %d from peer cpu %d (%d/%d)\n",
11108 cpu, cpup->eq, new_cpu,
11109 new_cpup->phys_id, new_cpup->core_id);
11113 /* Assign hdwq indices that are unique across all cpus in the map
11114 * that are also FIRST_CPUs.
11117 for_each_present_cpu(cpu) {
11118 cpup = &phba->sli4_hba.cpu_map[cpu];
11120 /* Only FIRST IRQs get a hdwq index assignment. */
11121 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
11124 /* 1 to 1, the first LPFC_CPU_FIRST_IRQ cpus to a unique hdwq */
11127 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11128 "3333 Set Affinity: CPU %d (phys %d core %d): "
11129 "hdwq %d eq %d flg x%x\n",
11130 cpu, cpup->phys_id, cpup->core_id,
11131 cpup->hdwq, cpup->eq, cpup->flag);
11133 /* Associate a hdwq with each cpu_map entry
11134 * This will be 1 to 1 - hdwq to cpu, unless there are less
11135 * hardware queues then CPUs. For that case we will just round-robin
11136 * the available hardware queues as they get assigned to CPUs.
11137 * The next_idx is the idx from the FIRST_CPU loop above to account
11138 * for irq_chann < hdwq. The idx is used for round-robin assignments
11139 * and needs to start at 0.
11144 for_each_present_cpu(cpu) {
11145 cpup = &phba->sli4_hba.cpu_map[cpu];
11147 /* FIRST cpus are already mapped. */
11148 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
11151 /* If the cfg_irq_chann < cfg_hdw_queue, set the hdwq
11152 * of the unassigned cpus to the next idx so that all
11153 * hdw queues are fully utilized.
11155 if (next_idx < phba->cfg_hdw_queue) {
11156 cpup->hdwq = next_idx;
11161 /* Not a First CPU and all hdw_queues are used. Reuse a
11162 * Hardware Queue for another CPU, so be smart about it
11163 * and pick one that has its IRQ/EQ mapped to the same phys_id
11164 * (CPU package) and core_id.
11166 new_cpu = start_cpu;
11167 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11168 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11169 if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
11170 new_cpup->phys_id == cpup->phys_id &&
11171 new_cpup->core_id == cpup->core_id) {
11174 new_cpu = cpumask_next(new_cpu, cpu_present_mask);
11175 if (new_cpu == nr_cpumask_bits)
11176 new_cpu = first_cpu;
11179 /* If we can't match both phys_id and core_id,
11180 * settle for just a phys_id match.
11182 new_cpu = start_cpu;
11183 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11184 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11185 if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
11186 new_cpup->phys_id == cpup->phys_id)
11189 new_cpu = cpumask_next(new_cpu, cpu_present_mask);
11190 if (new_cpu == nr_cpumask_bits)
11191 new_cpu = first_cpu;
11194 /* Otherwise just round robin on cfg_hdw_queue */
11195 cpup->hdwq = idx % phba->cfg_hdw_queue;
11199 /* We found an available entry, copy the IRQ info */
11200 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
11201 if (start_cpu == nr_cpumask_bits)
11202 start_cpu = first_cpu;
11203 cpup->hdwq = new_cpup->hdwq;
11205 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11206 "3335 Set Affinity: CPU %d (phys %d core %d): "
11207 "hdwq %d eq %d flg x%x\n",
11208 cpu, cpup->phys_id, cpup->core_id,
11209 cpup->hdwq, cpup->eq, cpup->flag);
11213 * Initialize the cpu_map slots for not-present cpus in case
11214 * a cpu is hot-added. Perform a simple hdwq round robin assignment.
11217 for_each_possible_cpu(cpu) {
11218 cpup = &phba->sli4_hba.cpu_map[cpu];
11219 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
11220 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, cpu);
11221 c_stat->hdwq_no = cpup->hdwq;
11223 if (cpup->hdwq != LPFC_VECTOR_MAP_EMPTY)
11226 cpup->hdwq = idx++ % phba->cfg_hdw_queue;
11227 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
11228 c_stat->hdwq_no = cpup->hdwq;
11230 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11231 "3340 Set Affinity: not present "
11232 "CPU %d hdwq %d\n",
11236 /* The cpu_map array will be used later during initialization
11237 * when EQ / CQ / WQs are allocated and configured.
11243 * lpfc_cpuhp_get_eq
11245 * @phba: pointer to lpfc hba data structure.
11246 * @cpu: cpu going offline
11247 * @eqlist: eq list to append to
11250 lpfc_cpuhp_get_eq(struct lpfc_hba *phba, unsigned int cpu,
11251 struct list_head *eqlist)
11253 const struct cpumask *maskp;
11254 struct lpfc_queue *eq;
11255 struct cpumask *tmp;
11258 tmp = kzalloc(cpumask_size(), GFP_KERNEL);
11262 for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11263 maskp = pci_irq_get_affinity(phba->pcidev, idx);
11267 * if irq is not affinitized to the cpu going
11268 * then we don't need to poll the eq attached
11271 if (!cpumask_and(tmp, maskp, cpumask_of(cpu)))
11273 /* get the cpus that are online and are affini-
11274 * tized to this irq vector. If the count is
11275 * more than 1 then cpuhp is not going to shut-
11276 * down this vector. Since this cpu has not
11277 * gone offline yet, we need >1.
11279 cpumask_and(tmp, maskp, cpu_online_mask);
11280 if (cpumask_weight(tmp) > 1)
11283 /* Now that we have an irq to shutdown, get the eq
11284 * mapped to this irq. Note: multiple hdwq's in
11285 * the software can share an eq, but eventually
11286 * only eq will be mapped to this vector
11288 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
11289 list_add(&eq->_poll_list, eqlist);
11295 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba)
11297 if (phba->sli_rev != LPFC_SLI_REV4)
11300 cpuhp_state_remove_instance_nocalls(lpfc_cpuhp_state,
11303 * unregistering the instance doesn't stop the polling
11304 * timer. Wait for the poll timer to retire.
11307 del_timer_sync(&phba->cpuhp_poll_timer);
11310 static void lpfc_cpuhp_remove(struct lpfc_hba *phba)
11312 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
11315 __lpfc_cpuhp_remove(phba);
11318 static void lpfc_cpuhp_add(struct lpfc_hba *phba)
11320 if (phba->sli_rev != LPFC_SLI_REV4)
11325 if (!list_empty(&phba->poll_list))
11326 mod_timer(&phba->cpuhp_poll_timer,
11327 jiffies + msecs_to_jiffies(LPFC_POLL_HB));
11331 cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state,
11335 static int __lpfc_cpuhp_checks(struct lpfc_hba *phba, int *retval)
11337 if (phba->pport->load_flag & FC_UNLOADING) {
11342 if (phba->sli_rev != LPFC_SLI_REV4) {
11347 /* proceed with the hotplug */
11352 * lpfc_irq_set_aff - set IRQ affinity
11353 * @eqhdl: EQ handle
11354 * @cpu: cpu to set affinity
11358 lpfc_irq_set_aff(struct lpfc_hba_eq_hdl *eqhdl, unsigned int cpu)
11360 cpumask_clear(&eqhdl->aff_mask);
11361 cpumask_set_cpu(cpu, &eqhdl->aff_mask);
11362 irq_set_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
11363 irq_set_affinity_hint(eqhdl->irq, &eqhdl->aff_mask);
11367 * lpfc_irq_clear_aff - clear IRQ affinity
11368 * @eqhdl: EQ handle
11372 lpfc_irq_clear_aff(struct lpfc_hba_eq_hdl *eqhdl)
11374 cpumask_clear(&eqhdl->aff_mask);
11375 irq_clear_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
11379 * lpfc_irq_rebalance - rebalances IRQ affinity according to cpuhp event
11380 * @phba: pointer to HBA context object.
11381 * @cpu: cpu going offline/online
11382 * @offline: true, cpu is going offline. false, cpu is coming online.
11384 * If cpu is going offline, we'll try our best effort to find the next
11385 * online cpu on the phba's original_mask and migrate all offlining IRQ
11388 * If cpu is coming online, reaffinitize the IRQ back to the onlining cpu.
11390 * Note: Call only if NUMA or NHT mode is enabled, otherwise rely on
11391 * PCI_IRQ_AFFINITY to auto-manage IRQ affinity.
11395 lpfc_irq_rebalance(struct lpfc_hba *phba, unsigned int cpu, bool offline)
11397 struct lpfc_vector_map_info *cpup;
11398 struct cpumask *aff_mask;
11399 unsigned int cpu_select, cpu_next, idx;
11400 const struct cpumask *orig_mask;
11402 if (phba->irq_chann_mode == NORMAL_MODE)
11405 orig_mask = &phba->sli4_hba.irq_aff_mask;
11407 if (!cpumask_test_cpu(cpu, orig_mask))
11410 cpup = &phba->sli4_hba.cpu_map[cpu];
11412 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
11416 /* Find next online CPU on original mask */
11417 cpu_next = cpumask_next_wrap(cpu, orig_mask, cpu, true);
11418 cpu_select = lpfc_next_online_cpu(orig_mask, cpu_next);
11420 /* Found a valid CPU */
11421 if ((cpu_select < nr_cpu_ids) && (cpu_select != cpu)) {
11422 /* Go through each eqhdl and ensure offlining
11423 * cpu aff_mask is migrated
11425 for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11426 aff_mask = lpfc_get_aff_mask(idx);
11428 /* Migrate affinity */
11429 if (cpumask_test_cpu(cpu, aff_mask))
11430 lpfc_irq_set_aff(lpfc_get_eq_hdl(idx),
11434 /* Rely on irqbalance if no online CPUs left on NUMA */
11435 for (idx = 0; idx < phba->cfg_irq_chann; idx++)
11436 lpfc_irq_clear_aff(lpfc_get_eq_hdl(idx));
11439 /* Migrate affinity back to this CPU */
11440 lpfc_irq_set_aff(lpfc_get_eq_hdl(cpup->eq), cpu);
11444 static int lpfc_cpu_offline(unsigned int cpu, struct hlist_node *node)
11446 struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
11447 struct lpfc_queue *eq, *next;
11452 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
11456 if (__lpfc_cpuhp_checks(phba, &retval))
11459 lpfc_irq_rebalance(phba, cpu, true);
11461 retval = lpfc_cpuhp_get_eq(phba, cpu, &eqlist);
11465 /* start polling on these eq's */
11466 list_for_each_entry_safe(eq, next, &eqlist, _poll_list) {
11467 list_del_init(&eq->_poll_list);
11468 lpfc_sli4_start_polling(eq);
11474 static int lpfc_cpu_online(unsigned int cpu, struct hlist_node *node)
11476 struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
11477 struct lpfc_queue *eq, *next;
11482 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
11486 if (__lpfc_cpuhp_checks(phba, &retval))
11489 lpfc_irq_rebalance(phba, cpu, false);
11491 list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list) {
11492 n = lpfc_find_cpu_handle(phba, eq->hdwq, LPFC_FIND_BY_HDWQ);
11494 lpfc_sli4_stop_polling(eq);
11501 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
11502 * @phba: pointer to lpfc hba data structure.
11504 * This routine is invoked to enable the MSI-X interrupt vectors to device
11505 * with SLI-4 interface spec. It also allocates MSI-X vectors and maps them
11506 * to cpus on the system.
11508 * When cfg_irq_numa is enabled, the adapter will only allocate vectors for
11509 * the number of cpus on the same numa node as this adapter. The vectors are
11510 * allocated without requesting OS affinity mapping. A vector will be
11511 * allocated and assigned to each online and offline cpu. If the cpu is
11512 * online, then affinity will be set to that cpu. If the cpu is offline, then
11513 * affinity will be set to the nearest peer cpu within the numa node that is
11514 * online. If there are no online cpus within the numa node, affinity is not
11515 * assigned and the OS may do as it pleases. Note: cpu vector affinity mapping
11516 * is consistent with the way cpu online/offline is handled when cfg_irq_numa is
11519 * If numa mode is not enabled and there is more than 1 vector allocated, then
11520 * the driver relies on the managed irq interface where the OS assigns vector to
11521 * cpu affinity. The driver will then use that affinity mapping to setup its
11522 * cpu mapping table.
11526 * other values - error
11529 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
11531 int vectors, rc, index;
11533 const struct cpumask *aff_mask = NULL;
11534 unsigned int cpu = 0, cpu_cnt = 0, cpu_select = nr_cpu_ids;
11535 struct lpfc_vector_map_info *cpup;
11536 struct lpfc_hba_eq_hdl *eqhdl;
11537 const struct cpumask *maskp;
11538 unsigned int flags = PCI_IRQ_MSIX;
11540 /* Set up MSI-X multi-message vectors */
11541 vectors = phba->cfg_irq_chann;
11543 if (phba->irq_chann_mode != NORMAL_MODE)
11544 aff_mask = &phba->sli4_hba.irq_aff_mask;
11547 cpu_cnt = cpumask_weight(aff_mask);
11548 vectors = min(phba->cfg_irq_chann, cpu_cnt);
11550 /* cpu: iterates over aff_mask including offline or online
11551 * cpu_select: iterates over online aff_mask to set affinity
11553 cpu = cpumask_first(aff_mask);
11554 cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
11556 flags |= PCI_IRQ_AFFINITY;
11559 rc = pci_alloc_irq_vectors(phba->pcidev, 1, vectors, flags);
11561 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11562 "0484 PCI enable MSI-X failed (%d)\n", rc);
11567 /* Assign MSI-X vectors to interrupt handlers */
11568 for (index = 0; index < vectors; index++) {
11569 eqhdl = lpfc_get_eq_hdl(index);
11570 name = eqhdl->handler_name;
11571 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
11572 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
11573 LPFC_DRIVER_HANDLER_NAME"%d", index);
11575 eqhdl->idx = index;
11576 rc = request_irq(pci_irq_vector(phba->pcidev, index),
11577 &lpfc_sli4_hba_intr_handler, 0,
11580 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11581 "0486 MSI-X fast-path (%d) "
11582 "request_irq failed (%d)\n", index, rc);
11586 eqhdl->irq = pci_irq_vector(phba->pcidev, index);
11589 /* If found a neighboring online cpu, set affinity */
11590 if (cpu_select < nr_cpu_ids)
11591 lpfc_irq_set_aff(eqhdl, cpu_select);
11593 /* Assign EQ to cpu_map */
11594 lpfc_assign_eq_map_info(phba, index,
11595 LPFC_CPU_FIRST_IRQ,
11598 /* Iterate to next offline or online cpu in aff_mask */
11599 cpu = cpumask_next(cpu, aff_mask);
11601 /* Find next online cpu in aff_mask to set affinity */
11602 cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
11603 } else if (vectors == 1) {
11604 cpu = cpumask_first(cpu_present_mask);
11605 lpfc_assign_eq_map_info(phba, index, LPFC_CPU_FIRST_IRQ,
11608 maskp = pci_irq_get_affinity(phba->pcidev, index);
11610 /* Loop through all CPUs associated with vector index */
11611 for_each_cpu_and(cpu, maskp, cpu_present_mask) {
11612 cpup = &phba->sli4_hba.cpu_map[cpu];
11614 /* If this is the first CPU thats assigned to
11615 * this vector, set LPFC_CPU_FIRST_IRQ.
11617 * With certain platforms its possible that irq
11618 * vectors are affinitized to all the cpu's.
11619 * This can result in each cpu_map.eq to be set
11620 * to the last vector, resulting in overwrite
11621 * of all the previous cpu_map.eq. Ensure that
11622 * each vector receives a place in cpu_map.
11623 * Later call to lpfc_cpu_affinity_check will
11624 * ensure we are nicely balanced out.
11626 if (cpup->eq != LPFC_VECTOR_MAP_EMPTY)
11628 lpfc_assign_eq_map_info(phba, index,
11629 LPFC_CPU_FIRST_IRQ,
11636 if (vectors != phba->cfg_irq_chann) {
11637 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11638 "3238 Reducing IO channels to match number of "
11639 "MSI-X vectors, requested %d got %d\n",
11640 phba->cfg_irq_chann, vectors);
11641 if (phba->cfg_irq_chann > vectors)
11642 phba->cfg_irq_chann = vectors;
11648 /* free the irq already requested */
11649 for (--index; index >= 0; index--) {
11650 eqhdl = lpfc_get_eq_hdl(index);
11651 lpfc_irq_clear_aff(eqhdl);
11652 irq_set_affinity_hint(eqhdl->irq, NULL);
11653 free_irq(eqhdl->irq, eqhdl);
11656 /* Unconfigure MSI-X capability structure */
11657 pci_free_irq_vectors(phba->pcidev);
11664 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
11665 * @phba: pointer to lpfc hba data structure.
11667 * This routine is invoked to enable the MSI interrupt mode to device with
11668 * SLI-4 interface spec. The kernel function pci_alloc_irq_vectors() is
11669 * called to enable the MSI vector. The device driver is responsible for
11670 * calling the request_irq() to register MSI vector with a interrupt the
11671 * handler, which is done in this function.
11675 * other values - error
11678 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
11682 struct lpfc_hba_eq_hdl *eqhdl;
11684 rc = pci_alloc_irq_vectors(phba->pcidev, 1, 1,
11685 PCI_IRQ_MSI | PCI_IRQ_AFFINITY);
11687 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11688 "0487 PCI enable MSI mode success.\n");
11690 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11691 "0488 PCI enable MSI mode failed (%d)\n", rc);
11692 return rc ? rc : -1;
11695 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
11696 0, LPFC_DRIVER_NAME, phba);
11698 pci_free_irq_vectors(phba->pcidev);
11699 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11700 "0490 MSI request_irq failed (%d)\n", rc);
11704 eqhdl = lpfc_get_eq_hdl(0);
11705 eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
11707 cpu = cpumask_first(cpu_present_mask);
11708 lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ, cpu);
11710 for (index = 0; index < phba->cfg_irq_chann; index++) {
11711 eqhdl = lpfc_get_eq_hdl(index);
11712 eqhdl->idx = index;
11719 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
11720 * @phba: pointer to lpfc hba data structure.
11721 * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
11723 * This routine is invoked to enable device interrupt and associate driver's
11724 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
11725 * interface spec. Depends on the interrupt mode configured to the driver,
11726 * the driver will try to fallback from the configured interrupt mode to an
11727 * interrupt mode which is supported by the platform, kernel, and device in
11729 * MSI-X -> MSI -> IRQ.
11733 * other values - error
11736 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
11738 uint32_t intr_mode = LPFC_INTR_ERROR;
11741 if (cfg_mode == 2) {
11742 /* Preparation before conf_msi mbox cmd */
11745 /* Now, try to enable MSI-X interrupt mode */
11746 retval = lpfc_sli4_enable_msix(phba);
11748 /* Indicate initialization to MSI-X mode */
11749 phba->intr_type = MSIX;
11755 /* Fallback to MSI if MSI-X initialization failed */
11756 if (cfg_mode >= 1 && phba->intr_type == NONE) {
11757 retval = lpfc_sli4_enable_msi(phba);
11759 /* Indicate initialization to MSI mode */
11760 phba->intr_type = MSI;
11765 /* Fallback to INTx if both MSI-X/MSI initalization failed */
11766 if (phba->intr_type == NONE) {
11767 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
11768 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
11770 struct lpfc_hba_eq_hdl *eqhdl;
11773 /* Indicate initialization to INTx mode */
11774 phba->intr_type = INTx;
11777 eqhdl = lpfc_get_eq_hdl(0);
11778 eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
11780 cpu = cpumask_first(cpu_present_mask);
11781 lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ,
11783 for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11784 eqhdl = lpfc_get_eq_hdl(idx);
11793 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
11794 * @phba: pointer to lpfc hba data structure.
11796 * This routine is invoked to disable device interrupt and disassociate
11797 * the driver's interrupt handler(s) from interrupt vector(s) to device
11798 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
11799 * will release the interrupt vector(s) for the message signaled interrupt.
11802 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
11804 /* Disable the currently initialized interrupt mode */
11805 if (phba->intr_type == MSIX) {
11807 struct lpfc_hba_eq_hdl *eqhdl;
11809 /* Free up MSI-X multi-message vectors */
11810 for (index = 0; index < phba->cfg_irq_chann; index++) {
11811 eqhdl = lpfc_get_eq_hdl(index);
11812 lpfc_irq_clear_aff(eqhdl);
11813 irq_set_affinity_hint(eqhdl->irq, NULL);
11814 free_irq(eqhdl->irq, eqhdl);
11817 free_irq(phba->pcidev->irq, phba);
11820 pci_free_irq_vectors(phba->pcidev);
11822 /* Reset interrupt management states */
11823 phba->intr_type = NONE;
11824 phba->sli.slistat.sli_intr = 0;
11828 * lpfc_unset_hba - Unset SLI3 hba device initialization
11829 * @phba: pointer to lpfc hba data structure.
11831 * This routine is invoked to unset the HBA device initialization steps to
11832 * a device with SLI-3 interface spec.
11835 lpfc_unset_hba(struct lpfc_hba *phba)
11837 struct lpfc_vport *vport = phba->pport;
11838 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
11840 spin_lock_irq(shost->host_lock);
11841 vport->load_flag |= FC_UNLOADING;
11842 spin_unlock_irq(shost->host_lock);
11844 kfree(phba->vpi_bmask);
11845 kfree(phba->vpi_ids);
11847 lpfc_stop_hba_timers(phba);
11849 phba->pport->work_port_events = 0;
11851 lpfc_sli_hba_down(phba);
11853 lpfc_sli_brdrestart(phba);
11855 lpfc_sli_disable_intr(phba);
11861 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
11862 * @phba: Pointer to HBA context object.
11864 * This function is called in the SLI4 code path to wait for completion
11865 * of device's XRIs exchange busy. It will check the XRI exchange busy
11866 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
11867 * that, it will check the XRI exchange busy on outstanding FCP and ELS
11868 * I/Os every 30 seconds, log error message, and wait forever. Only when
11869 * all XRI exchange busy complete, the driver unload shall proceed with
11870 * invoking the function reset ioctl mailbox command to the CNA and the
11871 * the rest of the driver unload resource release.
11874 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
11876 struct lpfc_sli4_hdw_queue *qp;
11879 int io_xri_cmpl = 1;
11880 int nvmet_xri_cmpl = 1;
11881 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
11883 /* Driver just aborted IOs during the hba_unset process. Pause
11884 * here to give the HBA time to complete the IO and get entries
11885 * into the abts lists.
11887 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
11889 /* Wait for NVME pending IO to flush back to transport. */
11890 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
11891 lpfc_nvme_wait_for_io_drain(phba);
11894 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
11895 qp = &phba->sli4_hba.hdwq[idx];
11896 io_xri_cmpl = list_empty(&qp->lpfc_abts_io_buf_list);
11897 if (!io_xri_cmpl) /* if list is NOT empty */
11903 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11905 list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
11908 while (!els_xri_cmpl || !io_xri_cmpl || !nvmet_xri_cmpl) {
11909 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
11910 if (!nvmet_xri_cmpl)
11911 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11912 "6424 NVMET XRI exchange busy "
11913 "wait time: %d seconds.\n",
11916 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11917 "6100 IO XRI exchange busy "
11918 "wait time: %d seconds.\n",
11921 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11922 "2878 ELS XRI exchange busy "
11923 "wait time: %d seconds.\n",
11925 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
11926 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
11928 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
11929 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
11933 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
11934 qp = &phba->sli4_hba.hdwq[idx];
11935 io_xri_cmpl = list_empty(
11936 &qp->lpfc_abts_io_buf_list);
11937 if (!io_xri_cmpl) /* if list is NOT empty */
11943 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11944 nvmet_xri_cmpl = list_empty(
11945 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
11948 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
11954 * lpfc_sli4_hba_unset - Unset the fcoe hba
11955 * @phba: Pointer to HBA context object.
11957 * This function is called in the SLI4 code path to reset the HBA's FCoE
11958 * function. The caller is not required to hold any lock. This routine
11959 * issues PCI function reset mailbox command to reset the FCoE function.
11960 * At the end of the function, it calls lpfc_hba_down_post function to
11961 * free any pending commands.
11964 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
11967 LPFC_MBOXQ_t *mboxq;
11968 struct pci_dev *pdev = phba->pcidev;
11970 lpfc_stop_hba_timers(phba);
11972 phba->sli4_hba.intr_enable = 0;
11975 * Gracefully wait out the potential current outstanding asynchronous
11979 /* First, block any pending async mailbox command from posted */
11980 spin_lock_irq(&phba->hbalock);
11981 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
11982 spin_unlock_irq(&phba->hbalock);
11983 /* Now, trying to wait it out if we can */
11984 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11986 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
11989 /* Forcefully release the outstanding mailbox command if timed out */
11990 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11991 spin_lock_irq(&phba->hbalock);
11992 mboxq = phba->sli.mbox_active;
11993 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
11994 __lpfc_mbox_cmpl_put(phba, mboxq);
11995 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11996 phba->sli.mbox_active = NULL;
11997 spin_unlock_irq(&phba->hbalock);
12000 /* Abort all iocbs associated with the hba */
12001 lpfc_sli_hba_iocb_abort(phba);
12003 /* Wait for completion of device XRI exchange busy */
12004 lpfc_sli4_xri_exchange_busy_wait(phba);
12006 /* per-phba callback de-registration for hotplug event */
12008 lpfc_cpuhp_remove(phba);
12010 /* Disable PCI subsystem interrupt */
12011 lpfc_sli4_disable_intr(phba);
12013 /* Disable SR-IOV if enabled */
12014 if (phba->cfg_sriov_nr_virtfn)
12015 pci_disable_sriov(pdev);
12017 /* Stop kthread signal shall trigger work_done one more time */
12018 kthread_stop(phba->worker_thread);
12020 /* Disable FW logging to host memory */
12021 lpfc_ras_stop_fwlog(phba);
12023 /* Unset the queues shared with the hardware then release all
12024 * allocated resources.
12026 lpfc_sli4_queue_unset(phba);
12027 lpfc_sli4_queue_destroy(phba);
12029 /* Reset SLI4 HBA FCoE function */
12030 lpfc_pci_function_reset(phba);
12032 /* Free RAS DMA memory */
12033 if (phba->ras_fwlog.ras_enabled)
12034 lpfc_sli4_ras_dma_free(phba);
12036 /* Stop the SLI4 device port */
12038 phba->pport->work_port_events = 0;
12042 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
12043 * @phba: Pointer to HBA context object.
12044 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
12046 * This function is called in the SLI4 code path to read the port's
12047 * sli4 capabilities.
12049 * This function may be be called from any context that can block-wait
12050 * for the completion. The expectation is that this routine is called
12051 * typically from probe_one or from the online routine.
12054 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
12057 struct lpfc_mqe *mqe = &mboxq->u.mqe;
12058 struct lpfc_pc_sli4_params *sli4_params;
12061 bool exp_wqcq_pages = true;
12062 struct lpfc_sli4_parameters *mbx_sli4_parameters;
12065 * By default, the driver assumes the SLI4 port requires RPI
12066 * header postings. The SLI4_PARAM response will correct this
12069 phba->sli4_hba.rpi_hdrs_in_use = 1;
12071 /* Read the port's SLI4 Config Parameters */
12072 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
12073 sizeof(struct lpfc_sli4_cfg_mhdr));
12074 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
12075 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
12076 length, LPFC_SLI4_MBX_EMBED);
12077 if (!phba->sli4_hba.intr_enable)
12078 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
12080 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
12081 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
12085 sli4_params = &phba->sli4_hba.pc_sli4_params;
12086 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
12087 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
12088 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
12089 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
12090 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
12091 mbx_sli4_parameters);
12092 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
12093 mbx_sli4_parameters);
12094 if (bf_get(cfg_phwq, mbx_sli4_parameters))
12095 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
12097 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
12098 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
12099 sli4_params->loopbk_scope = bf_get(cfg_loopbk_scope,
12100 mbx_sli4_parameters);
12101 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
12102 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
12103 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
12104 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
12105 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
12106 sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
12107 sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
12108 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
12109 sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
12110 sli4_params->pls = bf_get(cfg_pvl, mbx_sli4_parameters);
12111 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
12112 mbx_sli4_parameters);
12113 sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
12114 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
12115 mbx_sli4_parameters);
12116 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
12117 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
12119 /* Check for Extended Pre-Registered SGL support */
12120 phba->cfg_xpsgl = bf_get(cfg_xpsgl, mbx_sli4_parameters);
12122 /* Check for firmware nvme support */
12123 rc = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
12124 bf_get(cfg_xib, mbx_sli4_parameters));
12127 /* Save this to indicate the Firmware supports NVME */
12128 sli4_params->nvme = 1;
12130 /* Firmware NVME support, check driver FC4 NVME support */
12131 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) {
12132 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
12133 "6133 Disabling NVME support: "
12134 "FC4 type not supported: x%x\n",
12135 phba->cfg_enable_fc4_type);
12139 /* No firmware NVME support, check driver FC4 NVME support */
12140 sli4_params->nvme = 0;
12141 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
12142 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
12143 "6101 Disabling NVME support: Not "
12144 "supported by firmware (%d %d) x%x\n",
12145 bf_get(cfg_nvme, mbx_sli4_parameters),
12146 bf_get(cfg_xib, mbx_sli4_parameters),
12147 phba->cfg_enable_fc4_type);
12149 phba->nvme_support = 0;
12150 phba->nvmet_support = 0;
12151 phba->cfg_nvmet_mrq = 0;
12152 phba->cfg_nvme_seg_cnt = 0;
12154 /* If no FC4 type support, move to just SCSI support */
12155 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
12157 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
12161 /* If the NVME FC4 type is enabled, scale the sg_seg_cnt to
12162 * accommodate 512K and 1M IOs in a single nvme buf.
12164 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12165 phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
12167 /* Only embed PBDE for if_type 6, PBDE support requires xib be set */
12168 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
12169 LPFC_SLI_INTF_IF_TYPE_6) || (!bf_get(cfg_xib, mbx_sli4_parameters)))
12170 phba->cfg_enable_pbde = 0;
12173 * To support Suppress Response feature we must satisfy 3 conditions.
12174 * lpfc_suppress_rsp module parameter must be set (default).
12175 * In SLI4-Parameters Descriptor:
12176 * Extended Inline Buffers (XIB) must be supported.
12177 * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
12178 * (double negative).
12180 if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
12181 !(bf_get(cfg_nosr, mbx_sli4_parameters)))
12182 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
12184 phba->cfg_suppress_rsp = 0;
12186 if (bf_get(cfg_eqdr, mbx_sli4_parameters))
12187 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
12189 /* Make sure that sge_supp_len can be handled by the driver */
12190 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
12191 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
12194 * Check whether the adapter supports an embedded copy of the
12195 * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
12196 * to use this option, 128-byte WQEs must be used.
12198 if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
12199 phba->fcp_embed_io = 1;
12201 phba->fcp_embed_io = 0;
12203 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
12204 "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
12205 bf_get(cfg_xib, mbx_sli4_parameters),
12206 phba->cfg_enable_pbde,
12207 phba->fcp_embed_io, phba->nvme_support,
12208 phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
12210 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
12211 LPFC_SLI_INTF_IF_TYPE_2) &&
12212 (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
12213 LPFC_SLI_INTF_FAMILY_LNCR_A0))
12214 exp_wqcq_pages = false;
12216 if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
12217 (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
12219 (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
12220 phba->enab_exp_wqcq_pages = 1;
12222 phba->enab_exp_wqcq_pages = 0;
12224 * Check if the SLI port supports MDS Diagnostics
12226 if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
12227 phba->mds_diags_support = 1;
12229 phba->mds_diags_support = 0;
12232 * Check if the SLI port supports NSLER
12234 if (bf_get(cfg_nsler, mbx_sli4_parameters))
12239 /* Save PB info for use during HBA setup */
12240 sli4_params->mi_ver = bf_get(cfg_mi_ver, mbx_sli4_parameters);
12241 sli4_params->mib_bde_cnt = bf_get(cfg_mib_bde_cnt, mbx_sli4_parameters);
12242 sli4_params->mib_size = mbx_sli4_parameters->mib_size;
12243 sli4_params->mi_value = LPFC_DFLT_MIB_VAL;
12245 /* Next we check for Vendor MIB support */
12246 if (sli4_params->mi_ver && phba->cfg_enable_mi)
12247 phba->cfg_fdmi_on = LPFC_FDMI_SUPPORT;
12249 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12250 "6461 MIB attr %d enable %d FDMI %d buf %d:%d\n",
12251 sli4_params->mi_ver, phba->cfg_enable_mi,
12252 sli4_params->mi_value, sli4_params->mib_bde_cnt,
12253 sli4_params->mib_size);
12258 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
12259 * @pdev: pointer to PCI device
12260 * @pid: pointer to PCI device identifier
12262 * This routine is to be called to attach a device with SLI-3 interface spec
12263 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
12264 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
12265 * information of the device and driver to see if the driver state that it can
12266 * support this kind of device. If the match is successful, the driver core
12267 * invokes this routine. If this routine determines it can claim the HBA, it
12268 * does all the initialization that it needs to do to handle the HBA properly.
12271 * 0 - driver can claim the device
12272 * negative value - driver can not claim the device
12275 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
12277 struct lpfc_hba *phba;
12278 struct lpfc_vport *vport = NULL;
12279 struct Scsi_Host *shost = NULL;
12281 uint32_t cfg_mode, intr_mode;
12283 /* Allocate memory for HBA structure */
12284 phba = lpfc_hba_alloc(pdev);
12288 /* Perform generic PCI device enabling operation */
12289 error = lpfc_enable_pci_dev(phba);
12291 goto out_free_phba;
12293 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
12294 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
12296 goto out_disable_pci_dev;
12298 /* Set up SLI-3 specific device PCI memory space */
12299 error = lpfc_sli_pci_mem_setup(phba);
12301 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12302 "1402 Failed to set up pci memory space.\n");
12303 goto out_disable_pci_dev;
12306 /* Set up SLI-3 specific device driver resources */
12307 error = lpfc_sli_driver_resource_setup(phba);
12309 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12310 "1404 Failed to set up driver resource.\n");
12311 goto out_unset_pci_mem_s3;
12314 /* Initialize and populate the iocb list per host */
12316 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
12318 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12319 "1405 Failed to initialize iocb list.\n");
12320 goto out_unset_driver_resource_s3;
12323 /* Set up common device driver resources */
12324 error = lpfc_setup_driver_resource_phase2(phba);
12326 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12327 "1406 Failed to set up driver resource.\n");
12328 goto out_free_iocb_list;
12331 /* Get the default values for Model Name and Description */
12332 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
12334 /* Create SCSI host to the physical port */
12335 error = lpfc_create_shost(phba);
12337 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12338 "1407 Failed to create scsi host.\n");
12339 goto out_unset_driver_resource;
12342 /* Configure sysfs attributes */
12343 vport = phba->pport;
12344 error = lpfc_alloc_sysfs_attr(vport);
12346 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12347 "1476 Failed to allocate sysfs attr\n");
12348 goto out_destroy_shost;
12351 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
12352 /* Now, trying to enable interrupt and bring up the device */
12353 cfg_mode = phba->cfg_use_msi;
12355 /* Put device to a known state before enabling interrupt */
12356 lpfc_stop_port(phba);
12357 /* Configure and enable interrupt */
12358 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
12359 if (intr_mode == LPFC_INTR_ERROR) {
12360 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12361 "0431 Failed to enable interrupt.\n");
12363 goto out_free_sysfs_attr;
12365 /* SLI-3 HBA setup */
12366 if (lpfc_sli_hba_setup(phba)) {
12367 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12368 "1477 Failed to set up hba\n");
12370 goto out_remove_device;
12373 /* Wait 50ms for the interrupts of previous mailbox commands */
12375 /* Check active interrupts on message signaled interrupts */
12376 if (intr_mode == 0 ||
12377 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
12378 /* Log the current active interrupt mode */
12379 phba->intr_mode = intr_mode;
12380 lpfc_log_intr_mode(phba, intr_mode);
12383 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12384 "0447 Configure interrupt mode (%d) "
12385 "failed active interrupt test.\n",
12387 /* Disable the current interrupt mode */
12388 lpfc_sli_disable_intr(phba);
12389 /* Try next level of interrupt mode */
12390 cfg_mode = --intr_mode;
12394 /* Perform post initialization setup */
12395 lpfc_post_init_setup(phba);
12397 /* Check if there are static vports to be created. */
12398 lpfc_create_static_vport(phba);
12403 lpfc_unset_hba(phba);
12404 out_free_sysfs_attr:
12405 lpfc_free_sysfs_attr(vport);
12407 lpfc_destroy_shost(phba);
12408 out_unset_driver_resource:
12409 lpfc_unset_driver_resource_phase2(phba);
12410 out_free_iocb_list:
12411 lpfc_free_iocb_list(phba);
12412 out_unset_driver_resource_s3:
12413 lpfc_sli_driver_resource_unset(phba);
12414 out_unset_pci_mem_s3:
12415 lpfc_sli_pci_mem_unset(phba);
12416 out_disable_pci_dev:
12417 lpfc_disable_pci_dev(phba);
12419 scsi_host_put(shost);
12421 lpfc_hba_free(phba);
12426 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
12427 * @pdev: pointer to PCI device
12429 * This routine is to be called to disattach a device with SLI-3 interface
12430 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
12431 * removed from PCI bus, it performs all the necessary cleanup for the HBA
12432 * device to be removed from the PCI subsystem properly.
12435 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
12437 struct Scsi_Host *shost = pci_get_drvdata(pdev);
12438 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
12439 struct lpfc_vport **vports;
12440 struct lpfc_hba *phba = vport->phba;
12443 spin_lock_irq(&phba->hbalock);
12444 vport->load_flag |= FC_UNLOADING;
12445 spin_unlock_irq(&phba->hbalock);
12447 lpfc_free_sysfs_attr(vport);
12449 /* Release all the vports against this physical port */
12450 vports = lpfc_create_vport_work_array(phba);
12451 if (vports != NULL)
12452 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
12453 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
12455 fc_vport_terminate(vports[i]->fc_vport);
12457 lpfc_destroy_vport_work_array(phba, vports);
12459 /* Remove FC host with the physical port */
12460 fc_remove_host(shost);
12461 scsi_remove_host(shost);
12463 /* Clean up all nodes, mailboxes and IOs. */
12464 lpfc_cleanup(vport);
12467 * Bring down the SLI Layer. This step disable all interrupts,
12468 * clears the rings, discards all mailbox commands, and resets
12472 /* HBA interrupt will be disabled after this call */
12473 lpfc_sli_hba_down(phba);
12474 /* Stop kthread signal shall trigger work_done one more time */
12475 kthread_stop(phba->worker_thread);
12476 /* Final cleanup of txcmplq and reset the HBA */
12477 lpfc_sli_brdrestart(phba);
12479 kfree(phba->vpi_bmask);
12480 kfree(phba->vpi_ids);
12482 lpfc_stop_hba_timers(phba);
12483 spin_lock_irq(&phba->port_list_lock);
12484 list_del_init(&vport->listentry);
12485 spin_unlock_irq(&phba->port_list_lock);
12487 lpfc_debugfs_terminate(vport);
12489 /* Disable SR-IOV if enabled */
12490 if (phba->cfg_sriov_nr_virtfn)
12491 pci_disable_sriov(pdev);
12493 /* Disable interrupt */
12494 lpfc_sli_disable_intr(phba);
12496 scsi_host_put(shost);
12499 * Call scsi_free before mem_free since scsi bufs are released to their
12500 * corresponding pools here.
12502 lpfc_scsi_free(phba);
12503 lpfc_free_iocb_list(phba);
12505 lpfc_mem_free_all(phba);
12507 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
12508 phba->hbqslimp.virt, phba->hbqslimp.phys);
12510 /* Free resources associated with SLI2 interface */
12511 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
12512 phba->slim2p.virt, phba->slim2p.phys);
12514 /* unmap adapter SLIM and Control Registers */
12515 iounmap(phba->ctrl_regs_memmap_p);
12516 iounmap(phba->slim_memmap_p);
12518 lpfc_hba_free(phba);
12520 pci_release_mem_regions(pdev);
12521 pci_disable_device(pdev);
12525 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
12526 * @dev_d: pointer to device
12528 * This routine is to be called from the kernel's PCI subsystem to support
12529 * system Power Management (PM) to device with SLI-3 interface spec. When
12530 * PM invokes this method, it quiesces the device by stopping the driver's
12531 * worker thread for the device, turning off device's interrupt and DMA,
12532 * and bring the device offline. Note that as the driver implements the
12533 * minimum PM requirements to a power-aware driver's PM support for the
12534 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
12535 * to the suspend() method call will be treated as SUSPEND and the driver will
12536 * fully reinitialize its device during resume() method call, the driver will
12537 * set device to PCI_D3hot state in PCI config space instead of setting it
12538 * according to the @msg provided by the PM.
12541 * 0 - driver suspended the device
12544 static int __maybe_unused
12545 lpfc_pci_suspend_one_s3(struct device *dev_d)
12547 struct Scsi_Host *shost = dev_get_drvdata(dev_d);
12548 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12550 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12551 "0473 PCI device Power Management suspend.\n");
12553 /* Bring down the device */
12554 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12555 lpfc_offline(phba);
12556 kthread_stop(phba->worker_thread);
12558 /* Disable interrupt from device */
12559 lpfc_sli_disable_intr(phba);
12565 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
12566 * @dev_d: pointer to device
12568 * This routine is to be called from the kernel's PCI subsystem to support
12569 * system Power Management (PM) to device with SLI-3 interface spec. When PM
12570 * invokes this method, it restores the device's PCI config space state and
12571 * fully reinitializes the device and brings it online. Note that as the
12572 * driver implements the minimum PM requirements to a power-aware driver's
12573 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
12574 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
12575 * driver will fully reinitialize its device during resume() method call,
12576 * the device will be set to PCI_D0 directly in PCI config space before
12577 * restoring the state.
12580 * 0 - driver suspended the device
12583 static int __maybe_unused
12584 lpfc_pci_resume_one_s3(struct device *dev_d)
12586 struct Scsi_Host *shost = dev_get_drvdata(dev_d);
12587 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12588 uint32_t intr_mode;
12591 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12592 "0452 PCI device Power Management resume.\n");
12594 /* Startup the kernel thread for this host adapter. */
12595 phba->worker_thread = kthread_run(lpfc_do_work, phba,
12596 "lpfc_worker_%d", phba->brd_no);
12597 if (IS_ERR(phba->worker_thread)) {
12598 error = PTR_ERR(phba->worker_thread);
12599 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12600 "0434 PM resume failed to start worker "
12601 "thread: error=x%x.\n", error);
12605 /* Configure and enable interrupt */
12606 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
12607 if (intr_mode == LPFC_INTR_ERROR) {
12608 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12609 "0430 PM resume Failed to enable interrupt\n");
12612 phba->intr_mode = intr_mode;
12614 /* Restart HBA and bring it online */
12615 lpfc_sli_brdrestart(phba);
12618 /* Log the current active interrupt mode */
12619 lpfc_log_intr_mode(phba, phba->intr_mode);
12625 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
12626 * @phba: pointer to lpfc hba data structure.
12628 * This routine is called to prepare the SLI3 device for PCI slot recover. It
12629 * aborts all the outstanding SCSI I/Os to the pci device.
12632 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
12634 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12635 "2723 PCI channel I/O abort preparing for recovery\n");
12638 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
12639 * and let the SCSI mid-layer to retry them to recover.
12641 lpfc_sli_abort_fcp_rings(phba);
12645 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
12646 * @phba: pointer to lpfc hba data structure.
12648 * This routine is called to prepare the SLI3 device for PCI slot reset. It
12649 * disables the device interrupt and pci device, and aborts the internal FCP
12653 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
12655 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12656 "2710 PCI channel disable preparing for reset\n");
12658 /* Block any management I/Os to the device */
12659 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
12661 /* Block all SCSI devices' I/Os on the host */
12662 lpfc_scsi_dev_block(phba);
12664 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
12665 lpfc_sli_flush_io_rings(phba);
12667 /* stop all timers */
12668 lpfc_stop_hba_timers(phba);
12670 /* Disable interrupt and pci device */
12671 lpfc_sli_disable_intr(phba);
12672 pci_disable_device(phba->pcidev);
12676 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
12677 * @phba: pointer to lpfc hba data structure.
12679 * This routine is called to prepare the SLI3 device for PCI slot permanently
12680 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
12684 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
12686 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12687 "2711 PCI channel permanent disable for failure\n");
12688 /* Block all SCSI devices' I/Os on the host */
12689 lpfc_scsi_dev_block(phba);
12691 /* stop all timers */
12692 lpfc_stop_hba_timers(phba);
12694 /* Clean up all driver's outstanding SCSI I/Os */
12695 lpfc_sli_flush_io_rings(phba);
12699 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
12700 * @pdev: pointer to PCI device.
12701 * @state: the current PCI connection state.
12703 * This routine is called from the PCI subsystem for I/O error handling to
12704 * device with SLI-3 interface spec. This function is called by the PCI
12705 * subsystem after a PCI bus error affecting this device has been detected.
12706 * When this function is invoked, it will need to stop all the I/Os and
12707 * interrupt(s) to the device. Once that is done, it will return
12708 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
12712 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
12713 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12714 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12716 static pci_ers_result_t
12717 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
12719 struct Scsi_Host *shost = pci_get_drvdata(pdev);
12720 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12723 case pci_channel_io_normal:
12724 /* Non-fatal error, prepare for recovery */
12725 lpfc_sli_prep_dev_for_recover(phba);
12726 return PCI_ERS_RESULT_CAN_RECOVER;
12727 case pci_channel_io_frozen:
12728 /* Fatal error, prepare for slot reset */
12729 lpfc_sli_prep_dev_for_reset(phba);
12730 return PCI_ERS_RESULT_NEED_RESET;
12731 case pci_channel_io_perm_failure:
12732 /* Permanent failure, prepare for device down */
12733 lpfc_sli_prep_dev_for_perm_failure(phba);
12734 return PCI_ERS_RESULT_DISCONNECT;
12736 /* Unknown state, prepare and request slot reset */
12737 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12738 "0472 Unknown PCI error state: x%x\n", state);
12739 lpfc_sli_prep_dev_for_reset(phba);
12740 return PCI_ERS_RESULT_NEED_RESET;
12745 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
12746 * @pdev: pointer to PCI device.
12748 * This routine is called from the PCI subsystem for error handling to
12749 * device with SLI-3 interface spec. This is called after PCI bus has been
12750 * reset to restart the PCI card from scratch, as if from a cold-boot.
12751 * During the PCI subsystem error recovery, after driver returns
12752 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
12753 * recovery and then call this routine before calling the .resume method
12754 * to recover the device. This function will initialize the HBA device,
12755 * enable the interrupt, but it will just put the HBA to offline state
12756 * without passing any I/O traffic.
12759 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
12760 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12762 static pci_ers_result_t
12763 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
12765 struct Scsi_Host *shost = pci_get_drvdata(pdev);
12766 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12767 struct lpfc_sli *psli = &phba->sli;
12768 uint32_t intr_mode;
12770 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
12771 if (pci_enable_device_mem(pdev)) {
12772 printk(KERN_ERR "lpfc: Cannot re-enable "
12773 "PCI device after reset.\n");
12774 return PCI_ERS_RESULT_DISCONNECT;
12777 pci_restore_state(pdev);
12780 * As the new kernel behavior of pci_restore_state() API call clears
12781 * device saved_state flag, need to save the restored state again.
12783 pci_save_state(pdev);
12785 if (pdev->is_busmaster)
12786 pci_set_master(pdev);
12788 spin_lock_irq(&phba->hbalock);
12789 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
12790 spin_unlock_irq(&phba->hbalock);
12792 /* Configure and enable interrupt */
12793 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
12794 if (intr_mode == LPFC_INTR_ERROR) {
12795 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12796 "0427 Cannot re-enable interrupt after "
12798 return PCI_ERS_RESULT_DISCONNECT;
12800 phba->intr_mode = intr_mode;
12802 /* Take device offline, it will perform cleanup */
12803 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12804 lpfc_offline(phba);
12805 lpfc_sli_brdrestart(phba);
12807 /* Log the current active interrupt mode */
12808 lpfc_log_intr_mode(phba, phba->intr_mode);
12810 return PCI_ERS_RESULT_RECOVERED;
12814 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
12815 * @pdev: pointer to PCI device
12817 * This routine is called from the PCI subsystem for error handling to device
12818 * with SLI-3 interface spec. It is called when kernel error recovery tells
12819 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
12820 * error recovery. After this call, traffic can start to flow from this device
12824 lpfc_io_resume_s3(struct pci_dev *pdev)
12826 struct Scsi_Host *shost = pci_get_drvdata(pdev);
12827 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12829 /* Bring device online, it will be no-op for non-fatal error resume */
12834 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
12835 * @phba: pointer to lpfc hba data structure.
12837 * returns the number of ELS/CT IOCBs to reserve
12840 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
12842 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
12844 if (phba->sli_rev == LPFC_SLI_REV4) {
12845 if (max_xri <= 100)
12847 else if (max_xri <= 256)
12849 else if (max_xri <= 512)
12851 else if (max_xri <= 1024)
12853 else if (max_xri <= 1536)
12855 else if (max_xri <= 2048)
12864 * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
12865 * @phba: pointer to lpfc hba data structure.
12867 * returns the number of ELS/CT + NVMET IOCBs to reserve
12870 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
12872 int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
12874 if (phba->nvmet_support)
12875 max_xri += LPFC_NVMET_BUF_POST;
12881 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
12882 uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
12883 const struct firmware *fw)
12887 /* Three cases: (1) FW was not supported on the detected adapter.
12888 * (2) FW update has been locked out administratively.
12889 * (3) Some other error during FW update.
12890 * In each case, an unmaskable message is written to the console
12891 * for admin diagnosis.
12893 if (offset == ADD_STATUS_FW_NOT_SUPPORTED ||
12894 (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC &&
12895 magic_number != MAGIC_NUMBER_G6) ||
12896 (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC &&
12897 magic_number != MAGIC_NUMBER_G7)) {
12898 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12899 "3030 This firmware version is not supported on"
12900 " this HBA model. Device:%x Magic:%x Type:%x "
12901 "ID:%x Size %d %zd\n",
12902 phba->pcidev->device, magic_number, ftype, fid,
12905 } else if (offset == ADD_STATUS_FW_DOWNLOAD_HW_DISABLED) {
12906 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12907 "3021 Firmware downloads have been prohibited "
12908 "by a system configuration setting on "
12909 "Device:%x Magic:%x Type:%x ID:%x Size %d "
12911 phba->pcidev->device, magic_number, ftype, fid,
12915 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12916 "3022 FW Download failed. Add Status x%x "
12917 "Device:%x Magic:%x Type:%x ID:%x Size %d "
12919 offset, phba->pcidev->device, magic_number,
12920 ftype, fid, fsize, fw->size);
12927 * lpfc_write_firmware - attempt to write a firmware image to the port
12928 * @fw: pointer to firmware image returned from request_firmware.
12929 * @context: pointer to firmware image returned from request_firmware.
12933 lpfc_write_firmware(const struct firmware *fw, void *context)
12935 struct lpfc_hba *phba = (struct lpfc_hba *)context;
12936 char fwrev[FW_REV_STR_SIZE];
12937 struct lpfc_grp_hdr *image;
12938 struct list_head dma_buffer_list;
12940 struct lpfc_dmabuf *dmabuf, *next;
12941 uint32_t offset = 0, temp_offset = 0;
12942 uint32_t magic_number, ftype, fid, fsize;
12944 /* It can be null in no-wait mode, sanity check */
12949 image = (struct lpfc_grp_hdr *)fw->data;
12951 magic_number = be32_to_cpu(image->magic_number);
12952 ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
12953 fid = bf_get_be32(lpfc_grp_hdr_id, image);
12954 fsize = be32_to_cpu(image->size);
12956 INIT_LIST_HEAD(&dma_buffer_list);
12957 lpfc_decode_firmware_rev(phba, fwrev, 1);
12958 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
12959 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12960 "3023 Updating Firmware, Current Version:%s "
12961 "New Version:%s\n",
12962 fwrev, image->revision);
12963 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
12964 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
12970 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
12974 if (!dmabuf->virt) {
12979 list_add_tail(&dmabuf->list, &dma_buffer_list);
12981 while (offset < fw->size) {
12982 temp_offset = offset;
12983 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
12984 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
12985 memcpy(dmabuf->virt,
12986 fw->data + temp_offset,
12987 fw->size - temp_offset);
12988 temp_offset = fw->size;
12991 memcpy(dmabuf->virt, fw->data + temp_offset,
12993 temp_offset += SLI4_PAGE_SIZE;
12995 rc = lpfc_wr_object(phba, &dma_buffer_list,
12996 (fw->size - offset), &offset);
12998 rc = lpfc_log_write_firmware_error(phba, offset,
13009 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13010 "3029 Skipped Firmware update, Current "
13011 "Version:%s New Version:%s\n",
13012 fwrev, image->revision);
13015 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
13016 list_del(&dmabuf->list);
13017 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
13018 dmabuf->virt, dmabuf->phys);
13021 release_firmware(fw);
13024 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13025 "3062 Firmware update error, status %d.\n", rc);
13027 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13028 "3024 Firmware update success: size %d.\n", rc);
13032 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
13033 * @phba: pointer to lpfc hba data structure.
13034 * @fw_upgrade: which firmware to update.
13036 * This routine is called to perform Linux generic firmware upgrade on device
13037 * that supports such feature.
13040 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
13042 uint8_t file_name[ELX_MODEL_NAME_SIZE];
13044 const struct firmware *fw;
13046 /* Only supported on SLI4 interface type 2 for now */
13047 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
13048 LPFC_SLI_INTF_IF_TYPE_2)
13051 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
13053 if (fw_upgrade == INT_FW_UPGRADE) {
13054 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_UEVENT,
13055 file_name, &phba->pcidev->dev,
13056 GFP_KERNEL, (void *)phba,
13057 lpfc_write_firmware);
13058 } else if (fw_upgrade == RUN_FW_UPGRADE) {
13059 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
13061 lpfc_write_firmware(fw, (void *)phba);
13070 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
13071 * @pdev: pointer to PCI device
13072 * @pid: pointer to PCI device identifier
13074 * This routine is called from the kernel's PCI subsystem to device with
13075 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
13076 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
13077 * information of the device and driver to see if the driver state that it
13078 * can support this kind of device. If the match is successful, the driver
13079 * core invokes this routine. If this routine determines it can claim the HBA,
13080 * it does all the initialization that it needs to do to handle the HBA
13084 * 0 - driver can claim the device
13085 * negative value - driver can not claim the device
13088 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
13090 struct lpfc_hba *phba;
13091 struct lpfc_vport *vport = NULL;
13092 struct Scsi_Host *shost = NULL;
13094 uint32_t cfg_mode, intr_mode;
13096 /* Allocate memory for HBA structure */
13097 phba = lpfc_hba_alloc(pdev);
13101 /* Perform generic PCI device enabling operation */
13102 error = lpfc_enable_pci_dev(phba);
13104 goto out_free_phba;
13106 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
13107 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
13109 goto out_disable_pci_dev;
13111 /* Set up SLI-4 specific device PCI memory space */
13112 error = lpfc_sli4_pci_mem_setup(phba);
13114 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13115 "1410 Failed to set up pci memory space.\n");
13116 goto out_disable_pci_dev;
13119 /* Set up SLI-4 Specific device driver resources */
13120 error = lpfc_sli4_driver_resource_setup(phba);
13122 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13123 "1412 Failed to set up driver resource.\n");
13124 goto out_unset_pci_mem_s4;
13127 INIT_LIST_HEAD(&phba->active_rrq_list);
13128 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
13130 /* Set up common device driver resources */
13131 error = lpfc_setup_driver_resource_phase2(phba);
13133 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13134 "1414 Failed to set up driver resource.\n");
13135 goto out_unset_driver_resource_s4;
13138 /* Get the default values for Model Name and Description */
13139 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
13141 /* Now, trying to enable interrupt and bring up the device */
13142 cfg_mode = phba->cfg_use_msi;
13144 /* Put device to a known state before enabling interrupt */
13145 phba->pport = NULL;
13146 lpfc_stop_port(phba);
13148 /* Init cpu_map array */
13149 lpfc_cpu_map_array_init(phba);
13151 /* Init hba_eq_hdl array */
13152 lpfc_hba_eq_hdl_array_init(phba);
13154 /* Configure and enable interrupt */
13155 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
13156 if (intr_mode == LPFC_INTR_ERROR) {
13157 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13158 "0426 Failed to enable interrupt.\n");
13160 goto out_unset_driver_resource;
13162 /* Default to single EQ for non-MSI-X */
13163 if (phba->intr_type != MSIX) {
13164 phba->cfg_irq_chann = 1;
13165 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13166 if (phba->nvmet_support)
13167 phba->cfg_nvmet_mrq = 1;
13170 lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
13172 /* Create SCSI host to the physical port */
13173 error = lpfc_create_shost(phba);
13175 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13176 "1415 Failed to create scsi host.\n");
13177 goto out_disable_intr;
13179 vport = phba->pport;
13180 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
13182 /* Configure sysfs attributes */
13183 error = lpfc_alloc_sysfs_attr(vport);
13185 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13186 "1416 Failed to allocate sysfs attr\n");
13187 goto out_destroy_shost;
13190 /* Set up SLI-4 HBA */
13191 if (lpfc_sli4_hba_setup(phba)) {
13192 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13193 "1421 Failed to set up hba\n");
13195 goto out_free_sysfs_attr;
13198 /* Log the current active interrupt mode */
13199 phba->intr_mode = intr_mode;
13200 lpfc_log_intr_mode(phba, intr_mode);
13202 /* Perform post initialization setup */
13203 lpfc_post_init_setup(phba);
13205 /* NVME support in FW earlier in the driver load corrects the
13206 * FC4 type making a check for nvme_support unnecessary.
13208 if (phba->nvmet_support == 0) {
13209 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13210 /* Create NVME binding with nvme_fc_transport. This
13211 * ensures the vport is initialized. If the localport
13212 * create fails, it should not unload the driver to
13213 * support field issues.
13215 error = lpfc_nvme_create_localport(vport);
13217 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13218 "6004 NVME registration "
13219 "failed, error x%x\n",
13225 /* check for firmware upgrade or downgrade */
13226 if (phba->cfg_request_firmware_upgrade)
13227 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
13229 /* Check if there are static vports to be created. */
13230 lpfc_create_static_vport(phba);
13232 /* Enable RAS FW log support */
13233 lpfc_sli4_ras_setup(phba);
13235 INIT_LIST_HEAD(&phba->poll_list);
13236 timer_setup(&phba->cpuhp_poll_timer, lpfc_sli4_poll_hbtimer, 0);
13237 cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state, &phba->cpuhp);
13241 out_free_sysfs_attr:
13242 lpfc_free_sysfs_attr(vport);
13244 lpfc_destroy_shost(phba);
13246 lpfc_sli4_disable_intr(phba);
13247 out_unset_driver_resource:
13248 lpfc_unset_driver_resource_phase2(phba);
13249 out_unset_driver_resource_s4:
13250 lpfc_sli4_driver_resource_unset(phba);
13251 out_unset_pci_mem_s4:
13252 lpfc_sli4_pci_mem_unset(phba);
13253 out_disable_pci_dev:
13254 lpfc_disable_pci_dev(phba);
13256 scsi_host_put(shost);
13258 lpfc_hba_free(phba);
13263 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
13264 * @pdev: pointer to PCI device
13266 * This routine is called from the kernel's PCI subsystem to device with
13267 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
13268 * removed from PCI bus, it performs all the necessary cleanup for the HBA
13269 * device to be removed from the PCI subsystem properly.
13272 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
13274 struct Scsi_Host *shost = pci_get_drvdata(pdev);
13275 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
13276 struct lpfc_vport **vports;
13277 struct lpfc_hba *phba = vport->phba;
13280 /* Mark the device unloading flag */
13281 spin_lock_irq(&phba->hbalock);
13282 vport->load_flag |= FC_UNLOADING;
13283 spin_unlock_irq(&phba->hbalock);
13285 lpfc_free_sysfs_attr(vport);
13287 /* Release all the vports against this physical port */
13288 vports = lpfc_create_vport_work_array(phba);
13289 if (vports != NULL)
13290 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
13291 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
13293 fc_vport_terminate(vports[i]->fc_vport);
13295 lpfc_destroy_vport_work_array(phba, vports);
13297 /* Remove FC host with the physical port */
13298 fc_remove_host(shost);
13299 scsi_remove_host(shost);
13301 /* Perform ndlp cleanup on the physical port. The nvme and nvmet
13302 * localports are destroyed after to cleanup all transport memory.
13304 lpfc_cleanup(vport);
13305 lpfc_nvmet_destroy_targetport(phba);
13306 lpfc_nvme_destroy_localport(vport);
13308 /* De-allocate multi-XRI pools */
13309 if (phba->cfg_xri_rebalancing)
13310 lpfc_destroy_multixri_pools(phba);
13313 * Bring down the SLI Layer. This step disables all interrupts,
13314 * clears the rings, discards all mailbox commands, and resets
13315 * the HBA FCoE function.
13317 lpfc_debugfs_terminate(vport);
13319 lpfc_stop_hba_timers(phba);
13320 spin_lock_irq(&phba->port_list_lock);
13321 list_del_init(&vport->listentry);
13322 spin_unlock_irq(&phba->port_list_lock);
13324 /* Perform scsi free before driver resource_unset since scsi
13325 * buffers are released to their corresponding pools here.
13327 lpfc_io_free(phba);
13328 lpfc_free_iocb_list(phba);
13329 lpfc_sli4_hba_unset(phba);
13331 lpfc_unset_driver_resource_phase2(phba);
13332 lpfc_sli4_driver_resource_unset(phba);
13334 /* Unmap adapter Control and Doorbell registers */
13335 lpfc_sli4_pci_mem_unset(phba);
13337 /* Release PCI resources and disable device's PCI function */
13338 scsi_host_put(shost);
13339 lpfc_disable_pci_dev(phba);
13341 /* Finally, free the driver's device data structure */
13342 lpfc_hba_free(phba);
13348 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
13349 * @dev_d: pointer to device
13351 * This routine is called from the kernel's PCI subsystem to support system
13352 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
13353 * this method, it quiesces the device by stopping the driver's worker
13354 * thread for the device, turning off device's interrupt and DMA, and bring
13355 * the device offline. Note that as the driver implements the minimum PM
13356 * requirements to a power-aware driver's PM support for suspend/resume -- all
13357 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
13358 * method call will be treated as SUSPEND and the driver will fully
13359 * reinitialize its device during resume() method call, the driver will set
13360 * device to PCI_D3hot state in PCI config space instead of setting it
13361 * according to the @msg provided by the PM.
13364 * 0 - driver suspended the device
13367 static int __maybe_unused
13368 lpfc_pci_suspend_one_s4(struct device *dev_d)
13370 struct Scsi_Host *shost = dev_get_drvdata(dev_d);
13371 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13373 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13374 "2843 PCI device Power Management suspend.\n");
13376 /* Bring down the device */
13377 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
13378 lpfc_offline(phba);
13379 kthread_stop(phba->worker_thread);
13381 /* Disable interrupt from device */
13382 lpfc_sli4_disable_intr(phba);
13383 lpfc_sli4_queue_destroy(phba);
13389 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
13390 * @dev_d: pointer to device
13392 * This routine is called from the kernel's PCI subsystem to support system
13393 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
13394 * this method, it restores the device's PCI config space state and fully
13395 * reinitializes the device and brings it online. Note that as the driver
13396 * implements the minimum PM requirements to a power-aware driver's PM for
13397 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
13398 * to the suspend() method call will be treated as SUSPEND and the driver
13399 * will fully reinitialize its device during resume() method call, the device
13400 * will be set to PCI_D0 directly in PCI config space before restoring the
13404 * 0 - driver suspended the device
13407 static int __maybe_unused
13408 lpfc_pci_resume_one_s4(struct device *dev_d)
13410 struct Scsi_Host *shost = dev_get_drvdata(dev_d);
13411 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13412 uint32_t intr_mode;
13415 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13416 "0292 PCI device Power Management resume.\n");
13418 /* Startup the kernel thread for this host adapter. */
13419 phba->worker_thread = kthread_run(lpfc_do_work, phba,
13420 "lpfc_worker_%d", phba->brd_no);
13421 if (IS_ERR(phba->worker_thread)) {
13422 error = PTR_ERR(phba->worker_thread);
13423 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13424 "0293 PM resume failed to start worker "
13425 "thread: error=x%x.\n", error);
13429 /* Configure and enable interrupt */
13430 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
13431 if (intr_mode == LPFC_INTR_ERROR) {
13432 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13433 "0294 PM resume Failed to enable interrupt\n");
13436 phba->intr_mode = intr_mode;
13438 /* Restart HBA and bring it online */
13439 lpfc_sli_brdrestart(phba);
13442 /* Log the current active interrupt mode */
13443 lpfc_log_intr_mode(phba, phba->intr_mode);
13449 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
13450 * @phba: pointer to lpfc hba data structure.
13452 * This routine is called to prepare the SLI4 device for PCI slot recover. It
13453 * aborts all the outstanding SCSI I/Os to the pci device.
13456 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
13458 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13459 "2828 PCI channel I/O abort preparing for recovery\n");
13461 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
13462 * and let the SCSI mid-layer to retry them to recover.
13464 lpfc_sli_abort_fcp_rings(phba);
13468 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
13469 * @phba: pointer to lpfc hba data structure.
13471 * This routine is called to prepare the SLI4 device for PCI slot reset. It
13472 * disables the device interrupt and pci device, and aborts the internal FCP
13476 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
13478 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13479 "2826 PCI channel disable preparing for reset\n");
13481 /* Block any management I/Os to the device */
13482 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
13484 /* Block all SCSI devices' I/Os on the host */
13485 lpfc_scsi_dev_block(phba);
13487 /* Flush all driver's outstanding I/Os as we are to reset */
13488 lpfc_sli_flush_io_rings(phba);
13490 /* stop all timers */
13491 lpfc_stop_hba_timers(phba);
13493 /* Disable interrupt and pci device */
13494 lpfc_sli4_disable_intr(phba);
13495 lpfc_sli4_queue_destroy(phba);
13496 pci_disable_device(phba->pcidev);
13500 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
13501 * @phba: pointer to lpfc hba data structure.
13503 * This routine is called to prepare the SLI4 device for PCI slot permanently
13504 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
13508 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
13510 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13511 "2827 PCI channel permanent disable for failure\n");
13513 /* Block all SCSI devices' I/Os on the host */
13514 lpfc_scsi_dev_block(phba);
13516 /* stop all timers */
13517 lpfc_stop_hba_timers(phba);
13519 /* Clean up all driver's outstanding I/Os */
13520 lpfc_sli_flush_io_rings(phba);
13524 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
13525 * @pdev: pointer to PCI device.
13526 * @state: the current PCI connection state.
13528 * This routine is called from the PCI subsystem for error handling to device
13529 * with SLI-4 interface spec. This function is called by the PCI subsystem
13530 * after a PCI bus error affecting this device has been detected. When this
13531 * function is invoked, it will need to stop all the I/Os and interrupt(s)
13532 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
13533 * for the PCI subsystem to perform proper recovery as desired.
13536 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
13537 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13539 static pci_ers_result_t
13540 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
13542 struct Scsi_Host *shost = pci_get_drvdata(pdev);
13543 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13546 case pci_channel_io_normal:
13547 /* Non-fatal error, prepare for recovery */
13548 lpfc_sli4_prep_dev_for_recover(phba);
13549 return PCI_ERS_RESULT_CAN_RECOVER;
13550 case pci_channel_io_frozen:
13551 /* Fatal error, prepare for slot reset */
13552 lpfc_sli4_prep_dev_for_reset(phba);
13553 return PCI_ERS_RESULT_NEED_RESET;
13554 case pci_channel_io_perm_failure:
13555 /* Permanent failure, prepare for device down */
13556 lpfc_sli4_prep_dev_for_perm_failure(phba);
13557 return PCI_ERS_RESULT_DISCONNECT;
13559 /* Unknown state, prepare and request slot reset */
13560 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13561 "2825 Unknown PCI error state: x%x\n", state);
13562 lpfc_sli4_prep_dev_for_reset(phba);
13563 return PCI_ERS_RESULT_NEED_RESET;
13568 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
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 after PCI bus has been reset to
13573 * restart the PCI card from scratch, as if from a cold-boot. During the
13574 * PCI subsystem error recovery, after the driver returns
13575 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
13576 * recovery and then call this routine before calling the .resume method to
13577 * recover the device. This function will initialize the HBA device, enable
13578 * the interrupt, but it will just put the HBA to offline state without
13579 * passing any I/O traffic.
13582 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
13583 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13585 static pci_ers_result_t
13586 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
13588 struct Scsi_Host *shost = pci_get_drvdata(pdev);
13589 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13590 struct lpfc_sli *psli = &phba->sli;
13591 uint32_t intr_mode;
13593 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
13594 if (pci_enable_device_mem(pdev)) {
13595 printk(KERN_ERR "lpfc: Cannot re-enable "
13596 "PCI device after reset.\n");
13597 return PCI_ERS_RESULT_DISCONNECT;
13600 pci_restore_state(pdev);
13603 * As the new kernel behavior of pci_restore_state() API call clears
13604 * device saved_state flag, need to save the restored state again.
13606 pci_save_state(pdev);
13608 if (pdev->is_busmaster)
13609 pci_set_master(pdev);
13611 spin_lock_irq(&phba->hbalock);
13612 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
13613 spin_unlock_irq(&phba->hbalock);
13615 /* Configure and enable interrupt */
13616 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
13617 if (intr_mode == LPFC_INTR_ERROR) {
13618 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13619 "2824 Cannot re-enable interrupt after "
13621 return PCI_ERS_RESULT_DISCONNECT;
13623 phba->intr_mode = intr_mode;
13625 /* Log the current active interrupt mode */
13626 lpfc_log_intr_mode(phba, phba->intr_mode);
13628 return PCI_ERS_RESULT_RECOVERED;
13632 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
13633 * @pdev: pointer to PCI device
13635 * This routine is called from the PCI subsystem for error handling to device
13636 * with SLI-4 interface spec. It is called when kernel error recovery tells
13637 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
13638 * error recovery. After this call, traffic can start to flow from this device
13642 lpfc_io_resume_s4(struct pci_dev *pdev)
13644 struct Scsi_Host *shost = pci_get_drvdata(pdev);
13645 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13648 * In case of slot reset, as function reset is performed through
13649 * mailbox command which needs DMA to be enabled, this operation
13650 * has to be moved to the io resume phase. Taking device offline
13651 * will perform the necessary cleanup.
13653 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
13654 /* Perform device reset */
13655 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
13656 lpfc_offline(phba);
13657 lpfc_sli_brdrestart(phba);
13658 /* Bring the device back online */
13664 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
13665 * @pdev: pointer to PCI device
13666 * @pid: pointer to PCI device identifier
13668 * This routine is to be registered to the kernel's PCI subsystem. When an
13669 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
13670 * at PCI device-specific information of the device and driver to see if the
13671 * driver state that it can support this kind of device. If the match is
13672 * successful, the driver core invokes this routine. This routine dispatches
13673 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
13674 * do all the initialization that it needs to do to handle the HBA device
13678 * 0 - driver can claim the device
13679 * negative value - driver can not claim the device
13682 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
13685 struct lpfc_sli_intf intf;
13687 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
13690 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
13691 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
13692 rc = lpfc_pci_probe_one_s4(pdev, pid);
13694 rc = lpfc_pci_probe_one_s3(pdev, pid);
13700 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
13701 * @pdev: pointer to PCI device
13703 * This routine is to be registered to the kernel's PCI subsystem. When an
13704 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
13705 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
13706 * remove routine, which will perform all the necessary cleanup for the
13707 * device to be removed from the PCI subsystem properly.
13710 lpfc_pci_remove_one(struct pci_dev *pdev)
13712 struct Scsi_Host *shost = pci_get_drvdata(pdev);
13713 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13715 switch (phba->pci_dev_grp) {
13716 case LPFC_PCI_DEV_LP:
13717 lpfc_pci_remove_one_s3(pdev);
13719 case LPFC_PCI_DEV_OC:
13720 lpfc_pci_remove_one_s4(pdev);
13723 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13724 "1424 Invalid PCI device group: 0x%x\n",
13725 phba->pci_dev_grp);
13732 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
13733 * @dev: pointer to device
13735 * This routine is to be registered to the kernel's PCI subsystem to support
13736 * system Power Management (PM). When PM invokes this method, it dispatches
13737 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
13738 * suspend the device.
13741 * 0 - driver suspended the device
13744 static int __maybe_unused
13745 lpfc_pci_suspend_one(struct device *dev)
13747 struct Scsi_Host *shost = dev_get_drvdata(dev);
13748 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13751 switch (phba->pci_dev_grp) {
13752 case LPFC_PCI_DEV_LP:
13753 rc = lpfc_pci_suspend_one_s3(dev);
13755 case LPFC_PCI_DEV_OC:
13756 rc = lpfc_pci_suspend_one_s4(dev);
13759 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13760 "1425 Invalid PCI device group: 0x%x\n",
13761 phba->pci_dev_grp);
13768 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
13769 * @dev: pointer to device
13771 * This routine is to be registered to the kernel's PCI subsystem to support
13772 * system Power Management (PM). When PM invokes this method, it dispatches
13773 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
13774 * resume the device.
13777 * 0 - driver suspended the device
13780 static int __maybe_unused
13781 lpfc_pci_resume_one(struct device *dev)
13783 struct Scsi_Host *shost = dev_get_drvdata(dev);
13784 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13787 switch (phba->pci_dev_grp) {
13788 case LPFC_PCI_DEV_LP:
13789 rc = lpfc_pci_resume_one_s3(dev);
13791 case LPFC_PCI_DEV_OC:
13792 rc = lpfc_pci_resume_one_s4(dev);
13795 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13796 "1426 Invalid PCI device group: 0x%x\n",
13797 phba->pci_dev_grp);
13804 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
13805 * @pdev: pointer to PCI device.
13806 * @state: the current PCI connection state.
13808 * This routine is registered to the PCI subsystem for error handling. This
13809 * function is called by the PCI subsystem after a PCI bus error affecting
13810 * this device has been detected. When this routine is invoked, it dispatches
13811 * the action to the proper SLI-3 or SLI-4 device error detected handling
13812 * routine, which will perform the proper error detected operation.
13815 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
13816 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13818 static pci_ers_result_t
13819 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
13821 struct Scsi_Host *shost = pci_get_drvdata(pdev);
13822 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13823 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
13825 switch (phba->pci_dev_grp) {
13826 case LPFC_PCI_DEV_LP:
13827 rc = lpfc_io_error_detected_s3(pdev, state);
13829 case LPFC_PCI_DEV_OC:
13830 rc = lpfc_io_error_detected_s4(pdev, state);
13833 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13834 "1427 Invalid PCI device group: 0x%x\n",
13835 phba->pci_dev_grp);
13842 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
13843 * @pdev: pointer to PCI device.
13845 * This routine is registered to the PCI subsystem for error handling. This
13846 * function is called after PCI bus has been reset to restart the PCI card
13847 * from scratch, as if from a cold-boot. When this routine is invoked, it
13848 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
13849 * routine, which will perform the proper device reset.
13852 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
13853 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13855 static pci_ers_result_t
13856 lpfc_io_slot_reset(struct pci_dev *pdev)
13858 struct Scsi_Host *shost = pci_get_drvdata(pdev);
13859 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13860 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
13862 switch (phba->pci_dev_grp) {
13863 case LPFC_PCI_DEV_LP:
13864 rc = lpfc_io_slot_reset_s3(pdev);
13866 case LPFC_PCI_DEV_OC:
13867 rc = lpfc_io_slot_reset_s4(pdev);
13870 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13871 "1428 Invalid PCI device group: 0x%x\n",
13872 phba->pci_dev_grp);
13879 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
13880 * @pdev: pointer to PCI device
13882 * This routine is registered to the PCI subsystem for error handling. It
13883 * is called when kernel error recovery tells the lpfc driver that it is
13884 * OK to resume normal PCI operation after PCI bus error recovery. When
13885 * this routine is invoked, it dispatches the action to the proper SLI-3
13886 * or SLI-4 device io_resume routine, which will resume the device operation.
13889 lpfc_io_resume(struct pci_dev *pdev)
13891 struct Scsi_Host *shost = pci_get_drvdata(pdev);
13892 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13894 switch (phba->pci_dev_grp) {
13895 case LPFC_PCI_DEV_LP:
13896 lpfc_io_resume_s3(pdev);
13898 case LPFC_PCI_DEV_OC:
13899 lpfc_io_resume_s4(pdev);
13902 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13903 "1429 Invalid PCI device group: 0x%x\n",
13904 phba->pci_dev_grp);
13911 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
13912 * @phba: pointer to lpfc hba data structure.
13914 * This routine checks to see if OAS is supported for this adapter. If
13915 * supported, the configure Flash Optimized Fabric flag is set. Otherwise,
13916 * the enable oas flag is cleared and the pool created for OAS device data
13921 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
13924 if (!phba->cfg_EnableXLane)
13927 if (phba->sli4_hba.pc_sli4_params.oas_supported) {
13931 mempool_destroy(phba->device_data_mem_pool);
13932 phba->device_data_mem_pool = NULL;
13939 * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
13940 * @phba: pointer to lpfc hba data structure.
13942 * This routine checks to see if RAS is supported by the adapter. Check the
13943 * function through which RAS support enablement is to be done.
13946 lpfc_sli4_ras_init(struct lpfc_hba *phba)
13948 switch (phba->pcidev->device) {
13949 case PCI_DEVICE_ID_LANCER_G6_FC:
13950 case PCI_DEVICE_ID_LANCER_G7_FC:
13951 phba->ras_fwlog.ras_hwsupport = true;
13952 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
13953 phba->cfg_ras_fwlog_buffsize)
13954 phba->ras_fwlog.ras_enabled = true;
13956 phba->ras_fwlog.ras_enabled = false;
13959 phba->ras_fwlog.ras_hwsupport = false;
13964 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
13966 static const struct pci_error_handlers lpfc_err_handler = {
13967 .error_detected = lpfc_io_error_detected,
13968 .slot_reset = lpfc_io_slot_reset,
13969 .resume = lpfc_io_resume,
13972 static SIMPLE_DEV_PM_OPS(lpfc_pci_pm_ops_one,
13973 lpfc_pci_suspend_one,
13974 lpfc_pci_resume_one);
13976 static struct pci_driver lpfc_driver = {
13977 .name = LPFC_DRIVER_NAME,
13978 .id_table = lpfc_id_table,
13979 .probe = lpfc_pci_probe_one,
13980 .remove = lpfc_pci_remove_one,
13981 .shutdown = lpfc_pci_remove_one,
13982 .driver.pm = &lpfc_pci_pm_ops_one,
13983 .err_handler = &lpfc_err_handler,
13986 static const struct file_operations lpfc_mgmt_fop = {
13987 .owner = THIS_MODULE,
13990 static struct miscdevice lpfc_mgmt_dev = {
13991 .minor = MISC_DYNAMIC_MINOR,
13992 .name = "lpfcmgmt",
13993 .fops = &lpfc_mgmt_fop,
13997 * lpfc_init - lpfc module initialization routine
13999 * This routine is to be invoked when the lpfc module is loaded into the
14000 * kernel. The special kernel macro module_init() is used to indicate the
14001 * role of this routine to the kernel as lpfc module entry point.
14005 * -ENOMEM - FC attach transport failed
14006 * all others - failed
14013 pr_info(LPFC_MODULE_DESC "\n");
14014 pr_info(LPFC_COPYRIGHT "\n");
14016 error = misc_register(&lpfc_mgmt_dev);
14018 printk(KERN_ERR "Could not register lpfcmgmt device, "
14019 "misc_register returned with status %d", error);
14022 lpfc_transport_functions.vport_create = lpfc_vport_create;
14023 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
14024 lpfc_transport_template =
14025 fc_attach_transport(&lpfc_transport_functions);
14026 if (lpfc_transport_template == NULL)
14028 lpfc_vport_transport_template =
14029 fc_attach_transport(&lpfc_vport_transport_functions);
14030 if (lpfc_vport_transport_template == NULL) {
14031 fc_release_transport(lpfc_transport_template);
14034 lpfc_wqe_cmd_template();
14035 lpfc_nvmet_cmd_template();
14037 /* Initialize in case vector mapping is needed */
14038 lpfc_present_cpu = num_present_cpus();
14040 error = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN,
14041 "lpfc/sli4:online",
14042 lpfc_cpu_online, lpfc_cpu_offline);
14044 goto cpuhp_failure;
14045 lpfc_cpuhp_state = error;
14047 error = pci_register_driver(&lpfc_driver);
14054 cpuhp_remove_multi_state(lpfc_cpuhp_state);
14056 fc_release_transport(lpfc_transport_template);
14057 fc_release_transport(lpfc_vport_transport_template);
14059 misc_deregister(&lpfc_mgmt_dev);
14064 void lpfc_dmp_dbg(struct lpfc_hba *phba)
14066 unsigned int start_idx;
14067 unsigned int dbg_cnt;
14068 unsigned int temp_idx;
14071 unsigned long rem_nsec;
14072 struct lpfc_vport **vports;
14074 /* Don't dump messages if we explicitly set log_verbose for the
14075 * physical port or any vport.
14077 if (phba->cfg_log_verbose)
14080 vports = lpfc_create_vport_work_array(phba);
14081 if (vports != NULL) {
14082 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
14083 if (vports[i]->cfg_log_verbose) {
14084 lpfc_destroy_vport_work_array(phba, vports);
14089 lpfc_destroy_vport_work_array(phba, vports);
14091 if (atomic_cmpxchg(&phba->dbg_log_dmping, 0, 1) != 0)
14094 start_idx = (unsigned int)atomic_read(&phba->dbg_log_idx) % DBG_LOG_SZ;
14095 dbg_cnt = (unsigned int)atomic_read(&phba->dbg_log_cnt);
14098 temp_idx = start_idx;
14099 if (dbg_cnt >= DBG_LOG_SZ) {
14100 dbg_cnt = DBG_LOG_SZ;
14103 if ((start_idx + dbg_cnt) > (DBG_LOG_SZ - 1)) {
14104 temp_idx = (start_idx + dbg_cnt) % DBG_LOG_SZ;
14106 if (start_idx < dbg_cnt)
14107 start_idx = DBG_LOG_SZ - (dbg_cnt - start_idx);
14109 start_idx -= dbg_cnt;
14112 dev_info(&phba->pcidev->dev, "start %d end %d cnt %d\n",
14113 start_idx, temp_idx, dbg_cnt);
14115 for (i = 0; i < dbg_cnt; i++) {
14116 if ((start_idx + i) < DBG_LOG_SZ)
14117 temp_idx = (start_idx + i) % DBG_LOG_SZ;
14120 rem_nsec = do_div(phba->dbg_log[temp_idx].t_ns, NSEC_PER_SEC);
14121 dev_info(&phba->pcidev->dev, "%d: [%5lu.%06lu] %s",
14123 (unsigned long)phba->dbg_log[temp_idx].t_ns,
14125 phba->dbg_log[temp_idx].log);
14128 atomic_set(&phba->dbg_log_cnt, 0);
14129 atomic_set(&phba->dbg_log_dmping, 0);
14133 void lpfc_dbg_print(struct lpfc_hba *phba, const char *fmt, ...)
14137 int dbg_dmping = atomic_read(&phba->dbg_log_dmping);
14138 struct va_format vaf;
14141 va_start(args, fmt);
14142 if (unlikely(dbg_dmping)) {
14145 dev_info(&phba->pcidev->dev, "%pV", &vaf);
14149 idx = (unsigned int)atomic_fetch_add(1, &phba->dbg_log_idx) %
14152 atomic_inc(&phba->dbg_log_cnt);
14154 vscnprintf(phba->dbg_log[idx].log,
14155 sizeof(phba->dbg_log[idx].log), fmt, args);
14158 phba->dbg_log[idx].t_ns = local_clock();
14162 * lpfc_exit - lpfc module removal routine
14164 * This routine is invoked when the lpfc module is removed from the kernel.
14165 * The special kernel macro module_exit() is used to indicate the role of
14166 * this routine to the kernel as lpfc module exit point.
14171 misc_deregister(&lpfc_mgmt_dev);
14172 pci_unregister_driver(&lpfc_driver);
14173 cpuhp_remove_multi_state(lpfc_cpuhp_state);
14174 fc_release_transport(lpfc_transport_template);
14175 fc_release_transport(lpfc_vport_transport_template);
14176 idr_destroy(&lpfc_hba_index);
14179 module_init(lpfc_init);
14180 module_exit(lpfc_exit);
14181 MODULE_LICENSE("GPL");
14182 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
14183 MODULE_AUTHOR("Broadcom");
14184 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);