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;
71 static bool lpfc_pldv_detect;
73 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba);
74 static void lpfc_cpuhp_remove(struct lpfc_hba *phba);
75 static void lpfc_cpuhp_add(struct lpfc_hba *phba);
76 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
77 static int lpfc_post_rcv_buf(struct lpfc_hba *);
78 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
79 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
80 static int lpfc_setup_endian_order(struct lpfc_hba *);
81 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
82 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
83 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
84 static void lpfc_init_sgl_list(struct lpfc_hba *);
85 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
86 static void lpfc_free_active_sgl(struct lpfc_hba *);
87 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
88 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
89 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
90 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
91 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
92 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
93 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
94 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
95 static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int);
96 static void lpfc_setup_bg(struct lpfc_hba *, struct Scsi_Host *);
97 static int lpfc_sli4_cgn_parm_chg_evt(struct lpfc_hba *);
99 static struct scsi_transport_template *lpfc_transport_template = NULL;
100 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
101 static DEFINE_IDR(lpfc_hba_index);
102 #define LPFC_NVMET_BUF_POST 254
103 static int lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport);
106 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
107 * @phba: pointer to lpfc hba data structure.
109 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
110 * mailbox command. It retrieves the revision information from the HBA and
111 * collects the Vital Product Data (VPD) about the HBA for preparing the
112 * configuration of the HBA.
116 * -ERESTART - requests the SLI layer to reset the HBA and try again.
117 * Any other value - indicates an error.
120 lpfc_config_port_prep(struct lpfc_hba *phba)
122 lpfc_vpd_t *vp = &phba->vpd;
126 char *lpfc_vpd_data = NULL;
128 static char licensed[56] =
129 "key unlock for use with gnu public licensed code only\0";
130 static int init_key = 1;
132 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
134 phba->link_state = LPFC_HBA_ERROR;
139 phba->link_state = LPFC_INIT_MBX_CMDS;
141 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
143 uint32_t *ptext = (uint32_t *) licensed;
145 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
146 *ptext = cpu_to_be32(*ptext);
150 lpfc_read_nv(phba, pmb);
151 memset((char*)mb->un.varRDnvp.rsvd3, 0,
152 sizeof (mb->un.varRDnvp.rsvd3));
153 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
156 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
158 if (rc != MBX_SUCCESS) {
159 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
160 "0324 Config Port initialization "
161 "error, mbxCmd x%x READ_NVPARM, "
163 mb->mbxCommand, mb->mbxStatus);
164 mempool_free(pmb, phba->mbox_mem_pool);
167 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
169 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
174 * Clear all option bits except LPFC_SLI3_BG_ENABLED,
175 * which was already set in lpfc_get_cfgparam()
177 phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
179 /* Setup and issue mailbox READ REV command */
180 lpfc_read_rev(phba, pmb);
181 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
182 if (rc != MBX_SUCCESS) {
183 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
184 "0439 Adapter failed to init, mbxCmd x%x "
185 "READ_REV, mbxStatus x%x\n",
186 mb->mbxCommand, mb->mbxStatus);
187 mempool_free( pmb, phba->mbox_mem_pool);
193 * The value of rr must be 1 since the driver set the cv field to 1.
194 * This setting requires the FW to set all revision fields.
196 if (mb->un.varRdRev.rr == 0) {
198 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
199 "0440 Adapter failed to init, READ_REV has "
200 "missing revision information.\n");
201 mempool_free(pmb, phba->mbox_mem_pool);
205 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
206 mempool_free(pmb, phba->mbox_mem_pool);
210 /* Save information as VPD data */
212 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
213 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
214 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
215 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
216 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
217 vp->rev.biuRev = mb->un.varRdRev.biuRev;
218 vp->rev.smRev = mb->un.varRdRev.smRev;
219 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
220 vp->rev.endecRev = mb->un.varRdRev.endecRev;
221 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
222 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
223 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
224 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
225 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
226 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
228 /* If the sli feature level is less then 9, we must
229 * tear down all RPIs and VPIs on link down if NPIV
232 if (vp->rev.feaLevelHigh < 9)
233 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
235 if (lpfc_is_LC_HBA(phba->pcidev->device))
236 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
237 sizeof (phba->RandomData));
239 /* Get adapter VPD information */
240 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
244 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
245 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
247 if (rc != MBX_SUCCESS) {
248 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
249 "0441 VPD not present on adapter, "
250 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
251 mb->mbxCommand, mb->mbxStatus);
252 mb->un.varDmp.word_cnt = 0;
254 /* dump mem may return a zero when finished or we got a
255 * mailbox error, either way we are done.
257 if (mb->un.varDmp.word_cnt == 0)
260 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
261 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
262 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
263 lpfc_vpd_data + offset,
264 mb->un.varDmp.word_cnt);
265 offset += mb->un.varDmp.word_cnt;
266 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
268 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
270 kfree(lpfc_vpd_data);
272 mempool_free(pmb, phba->mbox_mem_pool);
277 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
278 * @phba: pointer to lpfc hba data structure.
279 * @pmboxq: pointer to the driver internal queue element for mailbox command.
281 * This is the completion handler for driver's configuring asynchronous event
282 * mailbox command to the device. If the mailbox command returns successfully,
283 * it will set internal async event support flag to 1; otherwise, it will
284 * set internal async event support flag to 0.
287 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
289 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
290 phba->temp_sensor_support = 1;
292 phba->temp_sensor_support = 0;
293 mempool_free(pmboxq, phba->mbox_mem_pool);
298 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
299 * @phba: pointer to lpfc hba data structure.
300 * @pmboxq: pointer to the driver internal queue element for mailbox command.
302 * This is the completion handler for dump mailbox command for getting
303 * wake up parameters. When this command complete, the response contain
304 * Option rom version of the HBA. This function translate the version number
305 * into a human readable string and store it in OptionROMVersion.
308 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
311 uint32_t prog_id_word;
313 /* character array used for decoding dist type. */
314 char dist_char[] = "nabx";
316 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
317 mempool_free(pmboxq, phba->mbox_mem_pool);
321 prg = (struct prog_id *) &prog_id_word;
323 /* word 7 contain option rom version */
324 prog_id_word = pmboxq->u.mb.un.varWords[7];
326 /* Decode the Option rom version word to a readable string */
328 dist = dist_char[prg->dist];
330 if ((prg->dist == 3) && (prg->num == 0))
331 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
332 prg->ver, prg->rev, prg->lev);
334 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
335 prg->ver, prg->rev, prg->lev,
337 mempool_free(pmboxq, phba->mbox_mem_pool);
342 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
343 * cfg_soft_wwnn, cfg_soft_wwpn
344 * @vport: pointer to lpfc vport data structure.
351 lpfc_update_vport_wwn(struct lpfc_vport *vport)
353 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
354 u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
356 /* If the soft name exists then update it using the service params */
357 if (vport->phba->cfg_soft_wwnn)
358 u64_to_wwn(vport->phba->cfg_soft_wwnn,
359 vport->fc_sparam.nodeName.u.wwn);
360 if (vport->phba->cfg_soft_wwpn)
361 u64_to_wwn(vport->phba->cfg_soft_wwpn,
362 vport->fc_sparam.portName.u.wwn);
365 * If the name is empty or there exists a soft name
366 * then copy the service params name, otherwise use the fc name
368 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
369 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
370 sizeof(struct lpfc_name));
372 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
373 sizeof(struct lpfc_name));
376 * If the port name has changed, then set the Param changes flag
379 if (vport->fc_portname.u.wwn[0] != 0 &&
380 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
381 sizeof(struct lpfc_name)))
382 vport->vport_flag |= FAWWPN_PARAM_CHG;
384 if (vport->fc_portname.u.wwn[0] == 0 ||
385 vport->phba->cfg_soft_wwpn ||
386 (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
387 vport->vport_flag & FAWWPN_SET) {
388 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
389 sizeof(struct lpfc_name));
390 vport->vport_flag &= ~FAWWPN_SET;
391 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
392 vport->vport_flag |= FAWWPN_SET;
395 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
396 sizeof(struct lpfc_name));
400 * lpfc_config_port_post - Perform lpfc initialization after config port
401 * @phba: pointer to lpfc hba data structure.
403 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
404 * command call. It performs all internal resource and state setups on the
405 * port: post IOCB buffers, enable appropriate host interrupt attentions,
406 * ELS ring timers, etc.
410 * Any other value - error.
413 lpfc_config_port_post(struct lpfc_hba *phba)
415 struct lpfc_vport *vport = phba->pport;
416 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
419 struct lpfc_dmabuf *mp;
420 struct lpfc_sli *psli = &phba->sli;
421 uint32_t status, timeout;
425 spin_lock_irq(&phba->hbalock);
427 * If the Config port completed correctly the HBA is not
428 * over heated any more.
430 if (phba->over_temp_state == HBA_OVER_TEMP)
431 phba->over_temp_state = HBA_NORMAL_TEMP;
432 spin_unlock_irq(&phba->hbalock);
434 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
436 phba->link_state = LPFC_HBA_ERROR;
441 /* Get login parameters for NID. */
442 rc = lpfc_read_sparam(phba, pmb, 0);
444 mempool_free(pmb, phba->mbox_mem_pool);
449 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
450 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
451 "0448 Adapter failed init, mbxCmd x%x "
452 "READ_SPARM mbxStatus x%x\n",
453 mb->mbxCommand, mb->mbxStatus);
454 phba->link_state = LPFC_HBA_ERROR;
455 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
456 mempool_free(pmb, phba->mbox_mem_pool);
457 lpfc_mbuf_free(phba, mp->virt, mp->phys);
462 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
464 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
465 lpfc_mbuf_free(phba, mp->virt, mp->phys);
468 lpfc_update_vport_wwn(vport);
470 /* Update the fc_host data structures with new wwn. */
471 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
472 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
473 fc_host_max_npiv_vports(shost) = phba->max_vpi;
475 /* If no serial number in VPD data, use low 6 bytes of WWNN */
476 /* This should be consolidated into parse_vpd ? - mr */
477 if (phba->SerialNumber[0] == 0) {
480 outptr = &vport->fc_nodename.u.s.IEEE[0];
481 for (i = 0; i < 12; i++) {
483 j = ((status & 0xf0) >> 4);
485 phba->SerialNumber[i] =
486 (char)((uint8_t) 0x30 + (uint8_t) j);
488 phba->SerialNumber[i] =
489 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
493 phba->SerialNumber[i] =
494 (char)((uint8_t) 0x30 + (uint8_t) j);
496 phba->SerialNumber[i] =
497 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
501 lpfc_read_config(phba, pmb);
503 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
504 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
505 "0453 Adapter failed to init, mbxCmd x%x "
506 "READ_CONFIG, mbxStatus x%x\n",
507 mb->mbxCommand, mb->mbxStatus);
508 phba->link_state = LPFC_HBA_ERROR;
509 mempool_free( pmb, phba->mbox_mem_pool);
513 /* Check if the port is disabled */
514 lpfc_sli_read_link_ste(phba);
516 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
517 if (phba->cfg_hba_queue_depth > mb->un.varRdConfig.max_xri) {
518 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
519 "3359 HBA queue depth changed from %d to %d\n",
520 phba->cfg_hba_queue_depth,
521 mb->un.varRdConfig.max_xri);
522 phba->cfg_hba_queue_depth = mb->un.varRdConfig.max_xri;
525 phba->lmt = mb->un.varRdConfig.lmt;
527 /* Get the default values for Model Name and Description */
528 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
530 phba->link_state = LPFC_LINK_DOWN;
532 /* Only process IOCBs on ELS ring till hba_state is READY */
533 if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
534 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
535 if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
536 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
538 /* Post receive buffers for desired rings */
539 if (phba->sli_rev != 3)
540 lpfc_post_rcv_buf(phba);
543 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
545 if (phba->intr_type == MSIX) {
546 rc = lpfc_config_msi(phba, pmb);
548 mempool_free(pmb, phba->mbox_mem_pool);
551 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
552 if (rc != MBX_SUCCESS) {
553 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
554 "0352 Config MSI mailbox command "
555 "failed, mbxCmd x%x, mbxStatus x%x\n",
556 pmb->u.mb.mbxCommand,
557 pmb->u.mb.mbxStatus);
558 mempool_free(pmb, phba->mbox_mem_pool);
563 spin_lock_irq(&phba->hbalock);
564 /* Initialize ERATT handling flag */
565 phba->hba_flag &= ~HBA_ERATT_HANDLED;
567 /* Enable appropriate host interrupts */
568 if (lpfc_readl(phba->HCregaddr, &status)) {
569 spin_unlock_irq(&phba->hbalock);
572 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
573 if (psli->num_rings > 0)
574 status |= HC_R0INT_ENA;
575 if (psli->num_rings > 1)
576 status |= HC_R1INT_ENA;
577 if (psli->num_rings > 2)
578 status |= HC_R2INT_ENA;
579 if (psli->num_rings > 3)
580 status |= HC_R3INT_ENA;
582 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
583 (phba->cfg_poll & DISABLE_FCP_RING_INT))
584 status &= ~(HC_R0INT_ENA);
586 writel(status, phba->HCregaddr);
587 readl(phba->HCregaddr); /* flush */
588 spin_unlock_irq(&phba->hbalock);
590 /* Set up ring-0 (ELS) timer */
591 timeout = phba->fc_ratov * 2;
592 mod_timer(&vport->els_tmofunc,
593 jiffies + msecs_to_jiffies(1000 * timeout));
594 /* Set up heart beat (HB) timer */
595 mod_timer(&phba->hb_tmofunc,
596 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
597 phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
598 phba->last_completion_time = jiffies;
599 /* Set up error attention (ERATT) polling timer */
600 mod_timer(&phba->eratt_poll,
601 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
603 if (phba->hba_flag & LINK_DISABLED) {
604 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
605 "2598 Adapter Link is disabled.\n");
606 lpfc_down_link(phba, pmb);
607 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
608 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
609 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
610 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
611 "2599 Adapter failed to issue DOWN_LINK"
612 " mbox command rc 0x%x\n", rc);
614 mempool_free(pmb, phba->mbox_mem_pool);
617 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
618 mempool_free(pmb, phba->mbox_mem_pool);
619 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
623 /* MBOX buffer will be freed in mbox compl */
624 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
626 phba->link_state = LPFC_HBA_ERROR;
630 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
631 pmb->mbox_cmpl = lpfc_config_async_cmpl;
632 pmb->vport = phba->pport;
633 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
635 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
636 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
637 "0456 Adapter failed to issue "
638 "ASYNCEVT_ENABLE mbox status x%x\n",
640 mempool_free(pmb, phba->mbox_mem_pool);
643 /* Get Option rom version */
644 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
646 phba->link_state = LPFC_HBA_ERROR;
650 lpfc_dump_wakeup_param(phba, pmb);
651 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
652 pmb->vport = phba->pport;
653 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
655 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
656 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
657 "0435 Adapter failed "
658 "to get Option ROM version status x%x\n", rc);
659 mempool_free(pmb, phba->mbox_mem_pool);
666 * lpfc_sli4_refresh_params - update driver copy of params.
667 * @phba: Pointer to HBA context object.
669 * This is called to refresh driver copy of dynamic fields from the
670 * common_get_sli4_parameters descriptor.
673 lpfc_sli4_refresh_params(struct lpfc_hba *phba)
676 struct lpfc_mqe *mqe;
677 struct lpfc_sli4_parameters *mbx_sli4_parameters;
680 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
685 /* Read the port's SLI4 Config Parameters */
686 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
687 sizeof(struct lpfc_sli4_cfg_mhdr));
688 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
689 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
690 length, LPFC_SLI4_MBX_EMBED);
692 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
694 mempool_free(mboxq, phba->mbox_mem_pool);
697 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
698 phba->sli4_hba.pc_sli4_params.mi_ver =
699 bf_get(cfg_mi_ver, mbx_sli4_parameters);
700 phba->sli4_hba.pc_sli4_params.cmf =
701 bf_get(cfg_cmf, mbx_sli4_parameters);
702 phba->sli4_hba.pc_sli4_params.pls =
703 bf_get(cfg_pvl, mbx_sli4_parameters);
705 mempool_free(mboxq, phba->mbox_mem_pool);
710 * lpfc_hba_init_link - Initialize the FC link
711 * @phba: pointer to lpfc hba data structure.
712 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
714 * This routine will issue the INIT_LINK mailbox command call.
715 * It is available to other drivers through the lpfc_hba data
716 * structure for use as a delayed link up mechanism with the
717 * module parameter lpfc_suppress_link_up.
721 * Any other value - error
724 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
726 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
730 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
731 * @phba: pointer to lpfc hba data structure.
732 * @fc_topology: desired fc topology.
733 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
735 * This routine will issue the INIT_LINK mailbox command call.
736 * It is available to other drivers through the lpfc_hba data
737 * structure for use as a delayed link up mechanism with the
738 * module parameter lpfc_suppress_link_up.
742 * Any other value - error
745 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
748 struct lpfc_vport *vport = phba->pport;
753 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
755 phba->link_state = LPFC_HBA_ERROR;
761 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
762 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
763 !(phba->lmt & LMT_1Gb)) ||
764 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
765 !(phba->lmt & LMT_2Gb)) ||
766 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
767 !(phba->lmt & LMT_4Gb)) ||
768 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
769 !(phba->lmt & LMT_8Gb)) ||
770 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
771 !(phba->lmt & LMT_10Gb)) ||
772 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
773 !(phba->lmt & LMT_16Gb)) ||
774 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
775 !(phba->lmt & LMT_32Gb)) ||
776 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
777 !(phba->lmt & LMT_64Gb))) {
778 /* Reset link speed to auto */
779 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
780 "1302 Invalid speed for this board:%d "
781 "Reset link speed to auto.\n",
782 phba->cfg_link_speed);
783 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
785 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
786 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
787 if (phba->sli_rev < LPFC_SLI_REV4)
788 lpfc_set_loopback_flag(phba);
789 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
790 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
791 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
792 "0498 Adapter failed to init, mbxCmd x%x "
793 "INIT_LINK, mbxStatus x%x\n",
794 mb->mbxCommand, mb->mbxStatus);
795 if (phba->sli_rev <= LPFC_SLI_REV3) {
796 /* Clear all interrupt enable conditions */
797 writel(0, phba->HCregaddr);
798 readl(phba->HCregaddr); /* flush */
799 /* Clear all pending interrupts */
800 writel(0xffffffff, phba->HAregaddr);
801 readl(phba->HAregaddr); /* flush */
803 phba->link_state = LPFC_HBA_ERROR;
804 if (rc != MBX_BUSY || flag == MBX_POLL)
805 mempool_free(pmb, phba->mbox_mem_pool);
808 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
809 if (flag == MBX_POLL)
810 mempool_free(pmb, phba->mbox_mem_pool);
816 * lpfc_hba_down_link - this routine downs the FC link
817 * @phba: pointer to lpfc hba data structure.
818 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
820 * This routine will issue the DOWN_LINK mailbox command call.
821 * It is available to other drivers through the lpfc_hba data
822 * structure for use to stop the link.
826 * Any other value - error
829 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
834 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
836 phba->link_state = LPFC_HBA_ERROR;
840 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
841 "0491 Adapter Link is disabled.\n");
842 lpfc_down_link(phba, pmb);
843 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
844 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
845 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
846 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
847 "2522 Adapter failed to issue DOWN_LINK"
848 " mbox command rc 0x%x\n", rc);
850 mempool_free(pmb, phba->mbox_mem_pool);
853 if (flag == MBX_POLL)
854 mempool_free(pmb, phba->mbox_mem_pool);
860 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
861 * @phba: pointer to lpfc HBA data structure.
863 * This routine will do LPFC uninitialization before the HBA is reset when
864 * bringing down the SLI Layer.
868 * Any other value - error.
871 lpfc_hba_down_prep(struct lpfc_hba *phba)
873 struct lpfc_vport **vports;
876 if (phba->sli_rev <= LPFC_SLI_REV3) {
877 /* Disable interrupts */
878 writel(0, phba->HCregaddr);
879 readl(phba->HCregaddr); /* flush */
882 if (phba->pport->load_flag & FC_UNLOADING)
883 lpfc_cleanup_discovery_resources(phba->pport);
885 vports = lpfc_create_vport_work_array(phba);
887 for (i = 0; i <= phba->max_vports &&
888 vports[i] != NULL; i++)
889 lpfc_cleanup_discovery_resources(vports[i]);
890 lpfc_destroy_vport_work_array(phba, vports);
896 * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
897 * rspiocb which got deferred
899 * @phba: pointer to lpfc HBA data structure.
901 * This routine will cleanup completed slow path events after HBA is reset
902 * when bringing down the SLI Layer.
909 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
911 struct lpfc_iocbq *rspiocbq;
912 struct hbq_dmabuf *dmabuf;
913 struct lpfc_cq_event *cq_event;
915 spin_lock_irq(&phba->hbalock);
916 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
917 spin_unlock_irq(&phba->hbalock);
919 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
920 /* Get the response iocb from the head of work queue */
921 spin_lock_irq(&phba->hbalock);
922 list_remove_head(&phba->sli4_hba.sp_queue_event,
923 cq_event, struct lpfc_cq_event, list);
924 spin_unlock_irq(&phba->hbalock);
926 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
927 case CQE_CODE_COMPL_WQE:
928 rspiocbq = container_of(cq_event, struct lpfc_iocbq,
930 lpfc_sli_release_iocbq(phba, rspiocbq);
932 case CQE_CODE_RECEIVE:
933 case CQE_CODE_RECEIVE_V1:
934 dmabuf = container_of(cq_event, struct hbq_dmabuf,
936 lpfc_in_buf_free(phba, &dmabuf->dbuf);
942 * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
943 * @phba: pointer to lpfc HBA data structure.
945 * This routine will cleanup posted ELS buffers after the HBA is reset
946 * when bringing down the SLI Layer.
953 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
955 struct lpfc_sli *psli = &phba->sli;
956 struct lpfc_sli_ring *pring;
957 struct lpfc_dmabuf *mp, *next_mp;
961 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
962 lpfc_sli_hbqbuf_free_all(phba);
964 /* Cleanup preposted buffers on the ELS ring */
965 pring = &psli->sli3_ring[LPFC_ELS_RING];
966 spin_lock_irq(&phba->hbalock);
967 list_splice_init(&pring->postbufq, &buflist);
968 spin_unlock_irq(&phba->hbalock);
971 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
974 lpfc_mbuf_free(phba, mp->virt, mp->phys);
978 spin_lock_irq(&phba->hbalock);
979 pring->postbufq_cnt -= count;
980 spin_unlock_irq(&phba->hbalock);
985 * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
986 * @phba: pointer to lpfc HBA data structure.
988 * This routine will cleanup the txcmplq after the HBA is reset when bringing
989 * down the SLI Layer.
995 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
997 struct lpfc_sli *psli = &phba->sli;
998 struct lpfc_queue *qp = NULL;
999 struct lpfc_sli_ring *pring;
1000 LIST_HEAD(completions);
1002 struct lpfc_iocbq *piocb, *next_iocb;
1004 if (phba->sli_rev != LPFC_SLI_REV4) {
1005 for (i = 0; i < psli->num_rings; i++) {
1006 pring = &psli->sli3_ring[i];
1007 spin_lock_irq(&phba->hbalock);
1008 /* At this point in time the HBA is either reset or DOA
1009 * Nothing should be on txcmplq as it will
1012 list_splice_init(&pring->txcmplq, &completions);
1013 pring->txcmplq_cnt = 0;
1014 spin_unlock_irq(&phba->hbalock);
1016 lpfc_sli_abort_iocb_ring(phba, pring);
1018 /* Cancel all the IOCBs from the completions list */
1019 lpfc_sli_cancel_iocbs(phba, &completions,
1020 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1023 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
1027 spin_lock_irq(&pring->ring_lock);
1028 list_for_each_entry_safe(piocb, next_iocb,
1029 &pring->txcmplq, list)
1030 piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
1031 list_splice_init(&pring->txcmplq, &completions);
1032 pring->txcmplq_cnt = 0;
1033 spin_unlock_irq(&pring->ring_lock);
1034 lpfc_sli_abort_iocb_ring(phba, pring);
1036 /* Cancel all the IOCBs from the completions list */
1037 lpfc_sli_cancel_iocbs(phba, &completions,
1038 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1042 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
1043 * @phba: pointer to lpfc HBA data structure.
1045 * This routine will do uninitialization after the HBA is reset when bring
1046 * down the SLI Layer.
1050 * Any other value - error.
1053 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1055 lpfc_hba_free_post_buf(phba);
1056 lpfc_hba_clean_txcmplq(phba);
1061 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1062 * @phba: pointer to lpfc HBA data structure.
1064 * This routine will do uninitialization after the HBA is reset when bring
1065 * down the SLI Layer.
1069 * Any other value - error.
1072 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1074 struct lpfc_io_buf *psb, *psb_next;
1075 struct lpfc_async_xchg_ctx *ctxp, *ctxp_next;
1076 struct lpfc_sli4_hdw_queue *qp;
1078 LIST_HEAD(nvme_aborts);
1079 LIST_HEAD(nvmet_aborts);
1080 struct lpfc_sglq *sglq_entry = NULL;
1084 lpfc_sli_hbqbuf_free_all(phba);
1085 lpfc_hba_clean_txcmplq(phba);
1087 /* At this point in time the HBA is either reset or DOA. Either
1088 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1089 * on the lpfc_els_sgl_list so that it can either be freed if the
1090 * driver is unloading or reposted if the driver is restarting
1094 /* sgl_list_lock required because worker thread uses this
1097 spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
1098 list_for_each_entry(sglq_entry,
1099 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1100 sglq_entry->state = SGL_FREED;
1102 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1103 &phba->sli4_hba.lpfc_els_sgl_list);
1106 spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
1108 /* abts_xxxx_buf_list_lock required because worker thread uses this
1111 spin_lock_irq(&phba->hbalock);
1113 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
1114 qp = &phba->sli4_hba.hdwq[idx];
1116 spin_lock(&qp->abts_io_buf_list_lock);
1117 list_splice_init(&qp->lpfc_abts_io_buf_list,
1120 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1122 psb->status = IOSTAT_SUCCESS;
1125 spin_lock(&qp->io_buf_list_put_lock);
1126 list_splice_init(&aborts, &qp->lpfc_io_buf_list_put);
1127 qp->put_io_bufs += qp->abts_scsi_io_bufs;
1128 qp->put_io_bufs += qp->abts_nvme_io_bufs;
1129 qp->abts_scsi_io_bufs = 0;
1130 qp->abts_nvme_io_bufs = 0;
1131 spin_unlock(&qp->io_buf_list_put_lock);
1132 spin_unlock(&qp->abts_io_buf_list_lock);
1134 spin_unlock_irq(&phba->hbalock);
1136 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1137 spin_lock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1138 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1140 spin_unlock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1141 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1142 ctxp->flag &= ~(LPFC_NVME_XBUSY | LPFC_NVME_ABORT_OP);
1143 lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1147 lpfc_sli4_free_sp_events(phba);
1152 * lpfc_hba_down_post - Wrapper func for hba down post routine
1153 * @phba: pointer to lpfc HBA data structure.
1155 * This routine wraps the actual SLI3 or SLI4 routine for performing
1156 * uninitialization after the HBA is reset when bring down the SLI Layer.
1160 * Any other value - error.
1163 lpfc_hba_down_post(struct lpfc_hba *phba)
1165 return (*phba->lpfc_hba_down_post)(phba);
1169 * lpfc_hb_timeout - The HBA-timer timeout handler
1170 * @t: timer context used to obtain the pointer to lpfc hba data structure.
1172 * This is the HBA-timer timeout handler registered to the lpfc driver. When
1173 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1174 * work-port-events bitmap and the worker thread is notified. This timeout
1175 * event will be used by the worker thread to invoke the actual timeout
1176 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1177 * be performed in the timeout handler and the HBA timeout event bit shall
1178 * be cleared by the worker thread after it has taken the event bitmap out.
1181 lpfc_hb_timeout(struct timer_list *t)
1183 struct lpfc_hba *phba;
1184 uint32_t tmo_posted;
1185 unsigned long iflag;
1187 phba = from_timer(phba, t, hb_tmofunc);
1189 /* Check for heart beat timeout conditions */
1190 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1191 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1193 phba->pport->work_port_events |= WORKER_HB_TMO;
1194 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1196 /* Tell the worker thread there is work to do */
1198 lpfc_worker_wake_up(phba);
1203 * lpfc_rrq_timeout - The RRQ-timer timeout handler
1204 * @t: timer context used to obtain the pointer to lpfc hba data structure.
1206 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1207 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1208 * work-port-events bitmap and the worker thread is notified. This timeout
1209 * event will be used by the worker thread to invoke the actual timeout
1210 * handler routine, lpfc_rrq_handler. Any periodical operations will
1211 * be performed in the timeout handler and the RRQ timeout event bit shall
1212 * be cleared by the worker thread after it has taken the event bitmap out.
1215 lpfc_rrq_timeout(struct timer_list *t)
1217 struct lpfc_hba *phba;
1218 unsigned long iflag;
1220 phba = from_timer(phba, t, rrq_tmr);
1221 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1222 if (!(phba->pport->load_flag & FC_UNLOADING))
1223 phba->hba_flag |= HBA_RRQ_ACTIVE;
1225 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1226 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1228 if (!(phba->pport->load_flag & FC_UNLOADING))
1229 lpfc_worker_wake_up(phba);
1233 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1234 * @phba: pointer to lpfc hba data structure.
1235 * @pmboxq: pointer to the driver internal queue element for mailbox command.
1237 * This is the callback function to the lpfc heart-beat mailbox command.
1238 * If configured, the lpfc driver issues the heart-beat mailbox command to
1239 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1240 * heart-beat mailbox command is issued, the driver shall set up heart-beat
1241 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1242 * heart-beat outstanding state. Once the mailbox command comes back and
1243 * no error conditions detected, the heart-beat mailbox command timer is
1244 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1245 * state is cleared for the next heart-beat. If the timer expired with the
1246 * heart-beat outstanding state set, the driver will put the HBA offline.
1249 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1251 unsigned long drvr_flag;
1253 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1254 phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
1255 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1257 /* Check and reset heart-beat timer if necessary */
1258 mempool_free(pmboxq, phba->mbox_mem_pool);
1259 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1260 !(phba->link_state == LPFC_HBA_ERROR) &&
1261 !(phba->pport->load_flag & FC_UNLOADING))
1262 mod_timer(&phba->hb_tmofunc,
1264 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1269 * lpfc_idle_stat_delay_work - idle_stat tracking
1271 * This routine tracks per-cq idle_stat and determines polling decisions.
1277 lpfc_idle_stat_delay_work(struct work_struct *work)
1279 struct lpfc_hba *phba = container_of(to_delayed_work(work),
1281 idle_stat_delay_work);
1282 struct lpfc_queue *cq;
1283 struct lpfc_sli4_hdw_queue *hdwq;
1284 struct lpfc_idle_stat *idle_stat;
1285 u32 i, idle_percent;
1286 u64 wall, wall_idle, diff_wall, diff_idle, busy_time;
1288 if (phba->pport->load_flag & FC_UNLOADING)
1291 if (phba->link_state == LPFC_HBA_ERROR ||
1292 phba->pport->fc_flag & FC_OFFLINE_MODE ||
1293 phba->cmf_active_mode != LPFC_CFG_OFF)
1296 for_each_present_cpu(i) {
1297 hdwq = &phba->sli4_hba.hdwq[phba->sli4_hba.cpu_map[i].hdwq];
1300 /* Skip if we've already handled this cq's primary CPU */
1304 idle_stat = &phba->sli4_hba.idle_stat[i];
1306 /* get_cpu_idle_time returns values as running counters. Thus,
1307 * to know the amount for this period, the prior counter values
1308 * need to be subtracted from the current counter values.
1309 * From there, the idle time stat can be calculated as a
1310 * percentage of 100 - the sum of the other consumption times.
1312 wall_idle = get_cpu_idle_time(i, &wall, 1);
1313 diff_idle = wall_idle - idle_stat->prev_idle;
1314 diff_wall = wall - idle_stat->prev_wall;
1316 if (diff_wall <= diff_idle)
1319 busy_time = diff_wall - diff_idle;
1321 idle_percent = div64_u64(100 * busy_time, diff_wall);
1322 idle_percent = 100 - idle_percent;
1324 if (idle_percent < 15)
1325 cq->poll_mode = LPFC_QUEUE_WORK;
1327 cq->poll_mode = LPFC_IRQ_POLL;
1329 idle_stat->prev_idle = wall_idle;
1330 idle_stat->prev_wall = wall;
1334 schedule_delayed_work(&phba->idle_stat_delay_work,
1335 msecs_to_jiffies(LPFC_IDLE_STAT_DELAY));
1339 lpfc_hb_eq_delay_work(struct work_struct *work)
1341 struct lpfc_hba *phba = container_of(to_delayed_work(work),
1342 struct lpfc_hba, eq_delay_work);
1343 struct lpfc_eq_intr_info *eqi, *eqi_new;
1344 struct lpfc_queue *eq, *eq_next;
1345 unsigned char *ena_delay = NULL;
1349 if (!phba->cfg_auto_imax || phba->pport->load_flag & FC_UNLOADING)
1352 if (phba->link_state == LPFC_HBA_ERROR ||
1353 phba->pport->fc_flag & FC_OFFLINE_MODE)
1356 ena_delay = kcalloc(phba->sli4_hba.num_possible_cpu, sizeof(*ena_delay),
1361 for (i = 0; i < phba->cfg_irq_chann; i++) {
1362 /* Get the EQ corresponding to the IRQ vector */
1363 eq = phba->sli4_hba.hba_eq_hdl[i].eq;
1366 if (eq->q_mode || eq->q_flag & HBA_EQ_DELAY_CHK) {
1367 eq->q_flag &= ~HBA_EQ_DELAY_CHK;
1368 ena_delay[eq->last_cpu] = 1;
1372 for_each_present_cpu(i) {
1373 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
1375 usdelay = (eqi->icnt >> 10) * LPFC_EQ_DELAY_STEP;
1376 if (usdelay > LPFC_MAX_AUTO_EQ_DELAY)
1377 usdelay = LPFC_MAX_AUTO_EQ_DELAY;
1384 list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) {
1385 if (unlikely(eq->last_cpu != i)) {
1386 eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info,
1388 list_move_tail(&eq->cpu_list, &eqi_new->list);
1391 if (usdelay != eq->q_mode)
1392 lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1,
1400 queue_delayed_work(phba->wq, &phba->eq_delay_work,
1401 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
1405 * lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution
1406 * @phba: pointer to lpfc hba data structure.
1408 * For each heartbeat, this routine does some heuristic methods to adjust
1409 * XRI distribution. The goal is to fully utilize free XRIs.
1411 static void lpfc_hb_mxp_handler(struct lpfc_hba *phba)
1416 hwq_count = phba->cfg_hdw_queue;
1417 for (i = 0; i < hwq_count; i++) {
1418 /* Adjust XRIs in private pool */
1419 lpfc_adjust_pvt_pool_count(phba, i);
1421 /* Adjust high watermark */
1422 lpfc_adjust_high_watermark(phba, i);
1424 #ifdef LPFC_MXP_STAT
1425 /* Snapshot pbl, pvt and busy count */
1426 lpfc_snapshot_mxp(phba, i);
1432 * lpfc_issue_hb_mbox - Issues heart-beat mailbox command
1433 * @phba: pointer to lpfc hba data structure.
1435 * If a HB mbox is not already in progrees, this routine will allocate
1436 * a LPFC_MBOXQ_t, populate it with a MBX_HEARTBEAT (0x31) command,
1437 * and issue it. The HBA_HBEAT_INP flag means the command is in progress.
1440 lpfc_issue_hb_mbox(struct lpfc_hba *phba)
1442 LPFC_MBOXQ_t *pmboxq;
1445 /* Is a Heartbeat mbox already in progress */
1446 if (phba->hba_flag & HBA_HBEAT_INP)
1449 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1453 lpfc_heart_beat(phba, pmboxq);
1454 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1455 pmboxq->vport = phba->pport;
1456 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
1458 if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
1459 mempool_free(pmboxq, phba->mbox_mem_pool);
1462 phba->hba_flag |= HBA_HBEAT_INP;
1468 * lpfc_issue_hb_tmo - Signals heartbeat timer to issue mbox command
1469 * @phba: pointer to lpfc hba data structure.
1471 * The heartbeat timer (every 5 sec) will fire. If the HBA_HBEAT_TMO
1472 * flag is set, it will force a MBX_HEARTBEAT mbox command, regardless
1473 * of the value of lpfc_enable_hba_heartbeat.
1474 * If lpfc_enable_hba_heartbeat is set, the timeout routine will always
1475 * try to issue a MBX_HEARTBEAT mbox command.
1478 lpfc_issue_hb_tmo(struct lpfc_hba *phba)
1480 if (phba->cfg_enable_hba_heartbeat)
1482 phba->hba_flag |= HBA_HBEAT_TMO;
1486 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1487 * @phba: pointer to lpfc hba data structure.
1489 * This is the actual HBA-timer timeout handler to be invoked by the worker
1490 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1491 * handler performs any periodic operations needed for the device. If such
1492 * periodic event has already been attended to either in the interrupt handler
1493 * or by processing slow-ring or fast-ring events within the HBA-timer
1494 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1495 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1496 * is configured and there is no heart-beat mailbox command outstanding, a
1497 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1498 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1502 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1504 struct lpfc_vport **vports;
1505 struct lpfc_dmabuf *buf_ptr;
1508 struct lpfc_sli *psli = &phba->sli;
1509 LIST_HEAD(completions);
1511 if (phba->cfg_xri_rebalancing) {
1512 /* Multi-XRI pools handler */
1513 lpfc_hb_mxp_handler(phba);
1516 vports = lpfc_create_vport_work_array(phba);
1518 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1519 lpfc_rcv_seq_check_edtov(vports[i]);
1520 lpfc_fdmi_change_check(vports[i]);
1522 lpfc_destroy_vport_work_array(phba, vports);
1524 if ((phba->link_state == LPFC_HBA_ERROR) ||
1525 (phba->pport->load_flag & FC_UNLOADING) ||
1526 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1529 if (phba->elsbuf_cnt &&
1530 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1531 spin_lock_irq(&phba->hbalock);
1532 list_splice_init(&phba->elsbuf, &completions);
1533 phba->elsbuf_cnt = 0;
1534 phba->elsbuf_prev_cnt = 0;
1535 spin_unlock_irq(&phba->hbalock);
1537 while (!list_empty(&completions)) {
1538 list_remove_head(&completions, buf_ptr,
1539 struct lpfc_dmabuf, list);
1540 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1544 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1546 /* If there is no heart beat outstanding, issue a heartbeat command */
1547 if (phba->cfg_enable_hba_heartbeat) {
1548 /* If IOs are completing, no need to issue a MBX_HEARTBEAT */
1549 spin_lock_irq(&phba->pport->work_port_lock);
1550 if (time_after(phba->last_completion_time +
1551 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1553 spin_unlock_irq(&phba->pport->work_port_lock);
1554 if (phba->hba_flag & HBA_HBEAT_INP)
1555 tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1557 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1560 spin_unlock_irq(&phba->pport->work_port_lock);
1562 /* Check if a MBX_HEARTBEAT is already in progress */
1563 if (phba->hba_flag & HBA_HBEAT_INP) {
1565 * If heart beat timeout called with HBA_HBEAT_INP set
1566 * we need to give the hb mailbox cmd a chance to
1569 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1570 "0459 Adapter heartbeat still outstanding: "
1571 "last compl time was %d ms.\n",
1572 jiffies_to_msecs(jiffies
1573 - phba->last_completion_time));
1574 tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1576 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1577 (list_empty(&psli->mboxq))) {
1579 retval = lpfc_issue_hb_mbox(phba);
1581 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1584 phba->skipped_hb = 0;
1585 } else if (time_before_eq(phba->last_completion_time,
1586 phba->skipped_hb)) {
1587 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1588 "2857 Last completion time not "
1589 " updated in %d ms\n",
1590 jiffies_to_msecs(jiffies
1591 - phba->last_completion_time));
1593 phba->skipped_hb = jiffies;
1595 tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1599 /* Check to see if we want to force a MBX_HEARTBEAT */
1600 if (phba->hba_flag & HBA_HBEAT_TMO) {
1601 retval = lpfc_issue_hb_mbox(phba);
1603 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1605 tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1608 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1611 mod_timer(&phba->hb_tmofunc, jiffies + msecs_to_jiffies(tmo));
1615 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1616 * @phba: pointer to lpfc hba data structure.
1618 * This routine is called to bring the HBA offline when HBA hardware error
1619 * other than Port Error 6 has been detected.
1622 lpfc_offline_eratt(struct lpfc_hba *phba)
1624 struct lpfc_sli *psli = &phba->sli;
1626 spin_lock_irq(&phba->hbalock);
1627 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1628 spin_unlock_irq(&phba->hbalock);
1629 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1632 lpfc_reset_barrier(phba);
1633 spin_lock_irq(&phba->hbalock);
1634 lpfc_sli_brdreset(phba);
1635 spin_unlock_irq(&phba->hbalock);
1636 lpfc_hba_down_post(phba);
1637 lpfc_sli_brdready(phba, HS_MBRDY);
1638 lpfc_unblock_mgmt_io(phba);
1639 phba->link_state = LPFC_HBA_ERROR;
1644 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1645 * @phba: pointer to lpfc hba data structure.
1647 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1648 * other than Port Error 6 has been detected.
1651 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1653 spin_lock_irq(&phba->hbalock);
1654 if (phba->link_state == LPFC_HBA_ERROR &&
1655 phba->hba_flag & HBA_PCI_ERR) {
1656 spin_unlock_irq(&phba->hbalock);
1659 phba->link_state = LPFC_HBA_ERROR;
1660 spin_unlock_irq(&phba->hbalock);
1662 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1663 lpfc_sli_flush_io_rings(phba);
1665 lpfc_hba_down_post(phba);
1666 lpfc_unblock_mgmt_io(phba);
1670 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1671 * @phba: pointer to lpfc hba data structure.
1673 * This routine is invoked to handle the deferred HBA hardware error
1674 * conditions. This type of error is indicated by HBA by setting ER1
1675 * and another ER bit in the host status register. The driver will
1676 * wait until the ER1 bit clears before handling the error condition.
1679 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1681 uint32_t old_host_status = phba->work_hs;
1682 struct lpfc_sli *psli = &phba->sli;
1684 /* If the pci channel is offline, ignore possible errors,
1685 * since we cannot communicate with the pci card anyway.
1687 if (pci_channel_offline(phba->pcidev)) {
1688 spin_lock_irq(&phba->hbalock);
1689 phba->hba_flag &= ~DEFER_ERATT;
1690 spin_unlock_irq(&phba->hbalock);
1694 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1695 "0479 Deferred Adapter Hardware Error "
1696 "Data: x%x x%x x%x\n",
1697 phba->work_hs, phba->work_status[0],
1698 phba->work_status[1]);
1700 spin_lock_irq(&phba->hbalock);
1701 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1702 spin_unlock_irq(&phba->hbalock);
1706 * Firmware stops when it triggred erratt. That could cause the I/Os
1707 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1708 * SCSI layer retry it after re-establishing link.
1710 lpfc_sli_abort_fcp_rings(phba);
1713 * There was a firmware error. Take the hba offline and then
1714 * attempt to restart it.
1716 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1719 /* Wait for the ER1 bit to clear.*/
1720 while (phba->work_hs & HS_FFER1) {
1722 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1723 phba->work_hs = UNPLUG_ERR ;
1726 /* If driver is unloading let the worker thread continue */
1727 if (phba->pport->load_flag & FC_UNLOADING) {
1734 * This is to ptrotect against a race condition in which
1735 * first write to the host attention register clear the
1736 * host status register.
1738 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1739 phba->work_hs = old_host_status & ~HS_FFER1;
1741 spin_lock_irq(&phba->hbalock);
1742 phba->hba_flag &= ~DEFER_ERATT;
1743 spin_unlock_irq(&phba->hbalock);
1744 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1745 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1749 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1751 struct lpfc_board_event_header board_event;
1752 struct Scsi_Host *shost;
1754 board_event.event_type = FC_REG_BOARD_EVENT;
1755 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1756 shost = lpfc_shost_from_vport(phba->pport);
1757 fc_host_post_vendor_event(shost, fc_get_event_number(),
1758 sizeof(board_event),
1759 (char *) &board_event,
1764 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1765 * @phba: pointer to lpfc hba data structure.
1767 * This routine is invoked to handle the following HBA hardware error
1769 * 1 - HBA error attention interrupt
1770 * 2 - DMA ring index out of range
1771 * 3 - Mailbox command came back as unknown
1774 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1776 struct lpfc_vport *vport = phba->pport;
1777 struct lpfc_sli *psli = &phba->sli;
1778 uint32_t event_data;
1779 unsigned long temperature;
1780 struct temp_event temp_event_data;
1781 struct Scsi_Host *shost;
1783 /* If the pci channel is offline, ignore possible errors,
1784 * since we cannot communicate with the pci card anyway.
1786 if (pci_channel_offline(phba->pcidev)) {
1787 spin_lock_irq(&phba->hbalock);
1788 phba->hba_flag &= ~DEFER_ERATT;
1789 spin_unlock_irq(&phba->hbalock);
1793 /* If resets are disabled then leave the HBA alone and return */
1794 if (!phba->cfg_enable_hba_reset)
1797 /* Send an internal error event to mgmt application */
1798 lpfc_board_errevt_to_mgmt(phba);
1800 if (phba->hba_flag & DEFER_ERATT)
1801 lpfc_handle_deferred_eratt(phba);
1803 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1804 if (phba->work_hs & HS_FFER6)
1805 /* Re-establishing Link */
1806 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1807 "1301 Re-establishing Link "
1808 "Data: x%x x%x x%x\n",
1809 phba->work_hs, phba->work_status[0],
1810 phba->work_status[1]);
1811 if (phba->work_hs & HS_FFER8)
1812 /* Device Zeroization */
1813 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1814 "2861 Host Authentication device "
1815 "zeroization Data:x%x x%x x%x\n",
1816 phba->work_hs, phba->work_status[0],
1817 phba->work_status[1]);
1819 spin_lock_irq(&phba->hbalock);
1820 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1821 spin_unlock_irq(&phba->hbalock);
1824 * Firmware stops when it triggled erratt with HS_FFER6.
1825 * That could cause the I/Os dropped by the firmware.
1826 * Error iocb (I/O) on txcmplq and let the SCSI layer
1827 * retry it after re-establishing link.
1829 lpfc_sli_abort_fcp_rings(phba);
1832 * There was a firmware error. Take the hba offline and then
1833 * attempt to restart it.
1835 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1837 lpfc_sli_brdrestart(phba);
1838 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1839 lpfc_unblock_mgmt_io(phba);
1842 lpfc_unblock_mgmt_io(phba);
1843 } else if (phba->work_hs & HS_CRIT_TEMP) {
1844 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1845 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1846 temp_event_data.event_code = LPFC_CRIT_TEMP;
1847 temp_event_data.data = (uint32_t)temperature;
1849 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1850 "0406 Adapter maximum temperature exceeded "
1851 "(%ld), taking this port offline "
1852 "Data: x%x x%x x%x\n",
1853 temperature, phba->work_hs,
1854 phba->work_status[0], phba->work_status[1]);
1856 shost = lpfc_shost_from_vport(phba->pport);
1857 fc_host_post_vendor_event(shost, fc_get_event_number(),
1858 sizeof(temp_event_data),
1859 (char *) &temp_event_data,
1860 SCSI_NL_VID_TYPE_PCI
1861 | PCI_VENDOR_ID_EMULEX);
1863 spin_lock_irq(&phba->hbalock);
1864 phba->over_temp_state = HBA_OVER_TEMP;
1865 spin_unlock_irq(&phba->hbalock);
1866 lpfc_offline_eratt(phba);
1869 /* The if clause above forces this code path when the status
1870 * failure is a value other than FFER6. Do not call the offline
1871 * twice. This is the adapter hardware error path.
1873 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1874 "0457 Adapter Hardware Error "
1875 "Data: x%x x%x x%x\n",
1877 phba->work_status[0], phba->work_status[1]);
1879 event_data = FC_REG_DUMP_EVENT;
1880 shost = lpfc_shost_from_vport(vport);
1881 fc_host_post_vendor_event(shost, fc_get_event_number(),
1882 sizeof(event_data), (char *) &event_data,
1883 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1885 lpfc_offline_eratt(phba);
1891 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1892 * @phba: pointer to lpfc hba data structure.
1893 * @mbx_action: flag for mailbox shutdown action.
1894 * @en_rn_msg: send reset/port recovery message.
1895 * This routine is invoked to perform an SLI4 port PCI function reset in
1896 * response to port status register polling attention. It waits for port
1897 * status register (ERR, RDY, RN) bits before proceeding with function reset.
1898 * During this process, interrupt vectors are freed and later requested
1899 * for handling possible port resource change.
1902 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1907 LPFC_MBOXQ_t *mboxq;
1909 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1910 LPFC_SLI_INTF_IF_TYPE_2) {
1912 * On error status condition, driver need to wait for port
1913 * ready before performing reset.
1915 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1920 /* need reset: attempt for port recovery */
1922 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1923 "2887 Reset Needed: Attempting Port "
1926 /* If we are no wait, the HBA has been reset and is not
1927 * functional, thus we should clear
1928 * (LPFC_SLI_ACTIVE | LPFC_SLI_MBOX_ACTIVE) flags.
1930 if (mbx_action == LPFC_MBX_NO_WAIT) {
1931 spin_lock_irq(&phba->hbalock);
1932 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
1933 if (phba->sli.mbox_active) {
1934 mboxq = phba->sli.mbox_active;
1935 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
1936 __lpfc_mbox_cmpl_put(phba, mboxq);
1937 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
1938 phba->sli.mbox_active = NULL;
1940 spin_unlock_irq(&phba->hbalock);
1943 lpfc_offline_prep(phba, mbx_action);
1944 lpfc_sli_flush_io_rings(phba);
1946 /* release interrupt for possible resource change */
1947 lpfc_sli4_disable_intr(phba);
1948 rc = lpfc_sli_brdrestart(phba);
1950 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1951 "6309 Failed to restart board\n");
1954 /* request and enable interrupt */
1955 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1956 if (intr_mode == LPFC_INTR_ERROR) {
1957 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1958 "3175 Failed to enable interrupt\n");
1961 phba->intr_mode = intr_mode;
1962 rc = lpfc_online(phba);
1964 lpfc_unblock_mgmt_io(phba);
1970 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1971 * @phba: pointer to lpfc hba data structure.
1973 * This routine is invoked to handle the SLI4 HBA hardware error attention
1977 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1979 struct lpfc_vport *vport = phba->pport;
1980 uint32_t event_data;
1981 struct Scsi_Host *shost;
1983 struct lpfc_register portstat_reg = {0};
1984 uint32_t reg_err1, reg_err2;
1985 uint32_t uerrlo_reg, uemasklo_reg;
1986 uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1987 bool en_rn_msg = true;
1988 struct temp_event temp_event_data;
1989 struct lpfc_register portsmphr_reg;
1992 /* If the pci channel is offline, ignore possible errors, since
1993 * we cannot communicate with the pci card anyway.
1995 if (pci_channel_offline(phba->pcidev)) {
1996 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1997 "3166 pci channel is offline\n");
2001 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
2002 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
2004 case LPFC_SLI_INTF_IF_TYPE_0:
2005 pci_rd_rc1 = lpfc_readl(
2006 phba->sli4_hba.u.if_type0.UERRLOregaddr,
2008 pci_rd_rc2 = lpfc_readl(
2009 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
2011 /* consider PCI bus read error as pci_channel_offline */
2012 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
2014 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
2015 lpfc_sli4_offline_eratt(phba);
2018 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2019 "7623 Checking UE recoverable");
2021 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
2022 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
2023 &portsmphr_reg.word0))
2026 smphr_port_status = bf_get(lpfc_port_smphr_port_status,
2028 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
2029 LPFC_PORT_SEM_UE_RECOVERABLE)
2031 /*Sleep for 1Sec, before checking SEMAPHORE */
2035 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2036 "4827 smphr_port_status x%x : Waited %dSec",
2037 smphr_port_status, i);
2039 /* Recoverable UE, reset the HBA device */
2040 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
2041 LPFC_PORT_SEM_UE_RECOVERABLE) {
2042 for (i = 0; i < 20; i++) {
2044 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
2045 &portsmphr_reg.word0) &&
2046 (LPFC_POST_STAGE_PORT_READY ==
2047 bf_get(lpfc_port_smphr_port_status,
2049 rc = lpfc_sli4_port_sta_fn_reset(phba,
2050 LPFC_MBX_NO_WAIT, en_rn_msg);
2053 lpfc_printf_log(phba, KERN_ERR,
2055 "4215 Failed to recover UE");
2060 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2061 "7624 Firmware not ready: Failing UE recovery,"
2062 " waited %dSec", i);
2063 phba->link_state = LPFC_HBA_ERROR;
2066 case LPFC_SLI_INTF_IF_TYPE_2:
2067 case LPFC_SLI_INTF_IF_TYPE_6:
2068 pci_rd_rc1 = lpfc_readl(
2069 phba->sli4_hba.u.if_type2.STATUSregaddr,
2070 &portstat_reg.word0);
2071 /* consider PCI bus read error as pci_channel_offline */
2072 if (pci_rd_rc1 == -EIO) {
2073 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2074 "3151 PCI bus read access failure: x%x\n",
2075 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
2076 lpfc_sli4_offline_eratt(phba);
2079 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
2080 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
2081 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
2082 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2083 "2889 Port Overtemperature event, "
2084 "taking port offline Data: x%x x%x\n",
2085 reg_err1, reg_err2);
2087 phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
2088 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
2089 temp_event_data.event_code = LPFC_CRIT_TEMP;
2090 temp_event_data.data = 0xFFFFFFFF;
2092 shost = lpfc_shost_from_vport(phba->pport);
2093 fc_host_post_vendor_event(shost, fc_get_event_number(),
2094 sizeof(temp_event_data),
2095 (char *)&temp_event_data,
2096 SCSI_NL_VID_TYPE_PCI
2097 | PCI_VENDOR_ID_EMULEX);
2099 spin_lock_irq(&phba->hbalock);
2100 phba->over_temp_state = HBA_OVER_TEMP;
2101 spin_unlock_irq(&phba->hbalock);
2102 lpfc_sli4_offline_eratt(phba);
2105 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2106 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
2107 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2108 "3143 Port Down: Firmware Update "
2111 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2112 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2113 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2114 "3144 Port Down: Debug Dump\n");
2115 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2116 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
2117 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2118 "3145 Port Down: Provisioning\n");
2120 /* If resets are disabled then leave the HBA alone and return */
2121 if (!phba->cfg_enable_hba_reset)
2124 /* Check port status register for function reset */
2125 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
2128 /* don't report event on forced debug dump */
2129 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2130 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2135 /* fall through for not able to recover */
2136 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2137 "3152 Unrecoverable error\n");
2138 phba->link_state = LPFC_HBA_ERROR;
2140 case LPFC_SLI_INTF_IF_TYPE_1:
2144 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2145 "3123 Report dump event to upper layer\n");
2146 /* Send an internal error event to mgmt application */
2147 lpfc_board_errevt_to_mgmt(phba);
2149 event_data = FC_REG_DUMP_EVENT;
2150 shost = lpfc_shost_from_vport(vport);
2151 fc_host_post_vendor_event(shost, fc_get_event_number(),
2152 sizeof(event_data), (char *) &event_data,
2153 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
2157 * lpfc_handle_eratt - Wrapper func for handling hba error attention
2158 * @phba: pointer to lpfc HBA data structure.
2160 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
2161 * routine from the API jump table function pointer from the lpfc_hba struct.
2165 * Any other value - error.
2168 lpfc_handle_eratt(struct lpfc_hba *phba)
2170 (*phba->lpfc_handle_eratt)(phba);
2174 * lpfc_handle_latt - The HBA link event handler
2175 * @phba: pointer to lpfc hba data structure.
2177 * This routine is invoked from the worker thread to handle a HBA host
2178 * attention link event. SLI3 only.
2181 lpfc_handle_latt(struct lpfc_hba *phba)
2183 struct lpfc_vport *vport = phba->pport;
2184 struct lpfc_sli *psli = &phba->sli;
2186 volatile uint32_t control;
2187 struct lpfc_dmabuf *mp;
2190 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2193 goto lpfc_handle_latt_err_exit;
2196 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2199 goto lpfc_handle_latt_free_pmb;
2202 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2205 goto lpfc_handle_latt_free_mp;
2208 /* Cleanup any outstanding ELS commands */
2209 lpfc_els_flush_all_cmd(phba);
2211 psli->slistat.link_event++;
2212 lpfc_read_topology(phba, pmb, mp);
2213 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2215 /* Block ELS IOCBs until we have processed this mbox command */
2216 phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2217 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2218 if (rc == MBX_NOT_FINISHED) {
2220 goto lpfc_handle_latt_free_mbuf;
2223 /* Clear Link Attention in HA REG */
2224 spin_lock_irq(&phba->hbalock);
2225 writel(HA_LATT, phba->HAregaddr);
2226 readl(phba->HAregaddr); /* flush */
2227 spin_unlock_irq(&phba->hbalock);
2231 lpfc_handle_latt_free_mbuf:
2232 phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2233 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2234 lpfc_handle_latt_free_mp:
2236 lpfc_handle_latt_free_pmb:
2237 mempool_free(pmb, phba->mbox_mem_pool);
2238 lpfc_handle_latt_err_exit:
2239 /* Enable Link attention interrupts */
2240 spin_lock_irq(&phba->hbalock);
2241 psli->sli_flag |= LPFC_PROCESS_LA;
2242 control = readl(phba->HCregaddr);
2243 control |= HC_LAINT_ENA;
2244 writel(control, phba->HCregaddr);
2245 readl(phba->HCregaddr); /* flush */
2247 /* Clear Link Attention in HA REG */
2248 writel(HA_LATT, phba->HAregaddr);
2249 readl(phba->HAregaddr); /* flush */
2250 spin_unlock_irq(&phba->hbalock);
2251 lpfc_linkdown(phba);
2252 phba->link_state = LPFC_HBA_ERROR;
2254 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2255 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2261 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2262 * @phba: pointer to lpfc hba data structure.
2263 * @vpd: pointer to the vital product data.
2264 * @len: length of the vital product data in bytes.
2266 * This routine parses the Vital Product Data (VPD). The VPD is treated as
2267 * an array of characters. In this routine, the ModelName, ProgramType, and
2268 * ModelDesc, etc. fields of the phba data structure will be populated.
2271 * 0 - pointer to the VPD passed in is NULL
2275 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2277 uint8_t lenlo, lenhi;
2287 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2288 "0455 Vital Product Data: x%x x%x x%x x%x\n",
2289 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2291 while (!finished && (index < (len - 4))) {
2292 switch (vpd[index]) {
2300 i = ((((unsigned short)lenhi) << 8) + lenlo);
2309 Length = ((((unsigned short)lenhi) << 8) + lenlo);
2310 if (Length > len - index)
2311 Length = len - index;
2312 while (Length > 0) {
2313 /* Look for Serial Number */
2314 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2321 phba->SerialNumber[j++] = vpd[index++];
2325 phba->SerialNumber[j] = 0;
2328 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2329 phba->vpd_flag |= VPD_MODEL_DESC;
2336 phba->ModelDesc[j++] = vpd[index++];
2340 phba->ModelDesc[j] = 0;
2343 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2344 phba->vpd_flag |= VPD_MODEL_NAME;
2351 phba->ModelName[j++] = vpd[index++];
2355 phba->ModelName[j] = 0;
2358 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2359 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2366 phba->ProgramType[j++] = vpd[index++];
2370 phba->ProgramType[j] = 0;
2373 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2374 phba->vpd_flag |= VPD_PORT;
2381 if ((phba->sli_rev == LPFC_SLI_REV4) &&
2382 (phba->sli4_hba.pport_name_sta ==
2383 LPFC_SLI4_PPNAME_GET)) {
2387 phba->Port[j++] = vpd[index++];
2391 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2392 (phba->sli4_hba.pport_name_sta ==
2393 LPFC_SLI4_PPNAME_NON))
2420 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2421 * @phba: pointer to lpfc hba data structure.
2422 * @mdp: pointer to the data structure to hold the derived model name.
2423 * @descp: pointer to the data structure to hold the derived description.
2425 * This routine retrieves HBA's description based on its registered PCI device
2426 * ID. The @descp passed into this function points to an array of 256 chars. It
2427 * shall be returned with the model name, maximum speed, and the host bus type.
2428 * The @mdp passed into this function points to an array of 80 chars. When the
2429 * function returns, the @mdp will be filled with the model name.
2432 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2435 uint16_t dev_id = phba->pcidev->device;
2438 int oneConnect = 0; /* default is not a oneConnect */
2443 } m = {"<Unknown>", "", ""};
2445 if (mdp && mdp[0] != '\0'
2446 && descp && descp[0] != '\0')
2449 if (phba->lmt & LMT_64Gb)
2451 else if (phba->lmt & LMT_32Gb)
2453 else if (phba->lmt & LMT_16Gb)
2455 else if (phba->lmt & LMT_10Gb)
2457 else if (phba->lmt & LMT_8Gb)
2459 else if (phba->lmt & LMT_4Gb)
2461 else if (phba->lmt & LMT_2Gb)
2463 else if (phba->lmt & LMT_1Gb)
2471 case PCI_DEVICE_ID_FIREFLY:
2472 m = (typeof(m)){"LP6000", "PCI",
2473 "Obsolete, Unsupported Fibre Channel Adapter"};
2475 case PCI_DEVICE_ID_SUPERFLY:
2476 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2477 m = (typeof(m)){"LP7000", "PCI", ""};
2479 m = (typeof(m)){"LP7000E", "PCI", ""};
2480 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2482 case PCI_DEVICE_ID_DRAGONFLY:
2483 m = (typeof(m)){"LP8000", "PCI",
2484 "Obsolete, Unsupported Fibre Channel Adapter"};
2486 case PCI_DEVICE_ID_CENTAUR:
2487 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2488 m = (typeof(m)){"LP9002", "PCI", ""};
2490 m = (typeof(m)){"LP9000", "PCI", ""};
2491 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2493 case PCI_DEVICE_ID_RFLY:
2494 m = (typeof(m)){"LP952", "PCI",
2495 "Obsolete, Unsupported Fibre Channel Adapter"};
2497 case PCI_DEVICE_ID_PEGASUS:
2498 m = (typeof(m)){"LP9802", "PCI-X",
2499 "Obsolete, Unsupported Fibre Channel Adapter"};
2501 case PCI_DEVICE_ID_THOR:
2502 m = (typeof(m)){"LP10000", "PCI-X",
2503 "Obsolete, Unsupported Fibre Channel Adapter"};
2505 case PCI_DEVICE_ID_VIPER:
2506 m = (typeof(m)){"LPX1000", "PCI-X",
2507 "Obsolete, Unsupported Fibre Channel Adapter"};
2509 case PCI_DEVICE_ID_PFLY:
2510 m = (typeof(m)){"LP982", "PCI-X",
2511 "Obsolete, Unsupported Fibre Channel Adapter"};
2513 case PCI_DEVICE_ID_TFLY:
2514 m = (typeof(m)){"LP1050", "PCI-X",
2515 "Obsolete, Unsupported Fibre Channel Adapter"};
2517 case PCI_DEVICE_ID_HELIOS:
2518 m = (typeof(m)){"LP11000", "PCI-X2",
2519 "Obsolete, Unsupported Fibre Channel Adapter"};
2521 case PCI_DEVICE_ID_HELIOS_SCSP:
2522 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2523 "Obsolete, Unsupported Fibre Channel Adapter"};
2525 case PCI_DEVICE_ID_HELIOS_DCSP:
2526 m = (typeof(m)){"LP11002-SP", "PCI-X2",
2527 "Obsolete, Unsupported Fibre Channel Adapter"};
2529 case PCI_DEVICE_ID_NEPTUNE:
2530 m = (typeof(m)){"LPe1000", "PCIe",
2531 "Obsolete, Unsupported Fibre Channel Adapter"};
2533 case PCI_DEVICE_ID_NEPTUNE_SCSP:
2534 m = (typeof(m)){"LPe1000-SP", "PCIe",
2535 "Obsolete, Unsupported Fibre Channel Adapter"};
2537 case PCI_DEVICE_ID_NEPTUNE_DCSP:
2538 m = (typeof(m)){"LPe1002-SP", "PCIe",
2539 "Obsolete, Unsupported Fibre Channel Adapter"};
2541 case PCI_DEVICE_ID_BMID:
2542 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2544 case PCI_DEVICE_ID_BSMB:
2545 m = (typeof(m)){"LP111", "PCI-X2",
2546 "Obsolete, Unsupported Fibre Channel Adapter"};
2548 case PCI_DEVICE_ID_ZEPHYR:
2549 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2551 case PCI_DEVICE_ID_ZEPHYR_SCSP:
2552 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2554 case PCI_DEVICE_ID_ZEPHYR_DCSP:
2555 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2558 case PCI_DEVICE_ID_ZMID:
2559 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2561 case PCI_DEVICE_ID_ZSMB:
2562 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2564 case PCI_DEVICE_ID_LP101:
2565 m = (typeof(m)){"LP101", "PCI-X",
2566 "Obsolete, Unsupported Fibre Channel Adapter"};
2568 case PCI_DEVICE_ID_LP10000S:
2569 m = (typeof(m)){"LP10000-S", "PCI",
2570 "Obsolete, Unsupported Fibre Channel Adapter"};
2572 case PCI_DEVICE_ID_LP11000S:
2573 m = (typeof(m)){"LP11000-S", "PCI-X2",
2574 "Obsolete, Unsupported Fibre Channel Adapter"};
2576 case PCI_DEVICE_ID_LPE11000S:
2577 m = (typeof(m)){"LPe11000-S", "PCIe",
2578 "Obsolete, Unsupported Fibre Channel Adapter"};
2580 case PCI_DEVICE_ID_SAT:
2581 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2583 case PCI_DEVICE_ID_SAT_MID:
2584 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2586 case PCI_DEVICE_ID_SAT_SMB:
2587 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2589 case PCI_DEVICE_ID_SAT_DCSP:
2590 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2592 case PCI_DEVICE_ID_SAT_SCSP:
2593 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2595 case PCI_DEVICE_ID_SAT_S:
2596 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2598 case PCI_DEVICE_ID_HORNET:
2599 m = (typeof(m)){"LP21000", "PCIe",
2600 "Obsolete, Unsupported FCoE Adapter"};
2603 case PCI_DEVICE_ID_PROTEUS_VF:
2604 m = (typeof(m)){"LPev12000", "PCIe IOV",
2605 "Obsolete, Unsupported Fibre Channel Adapter"};
2607 case PCI_DEVICE_ID_PROTEUS_PF:
2608 m = (typeof(m)){"LPev12000", "PCIe IOV",
2609 "Obsolete, Unsupported Fibre Channel Adapter"};
2611 case PCI_DEVICE_ID_PROTEUS_S:
2612 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2613 "Obsolete, Unsupported Fibre Channel Adapter"};
2615 case PCI_DEVICE_ID_TIGERSHARK:
2617 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2619 case PCI_DEVICE_ID_TOMCAT:
2621 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2623 case PCI_DEVICE_ID_FALCON:
2624 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2625 "EmulexSecure Fibre"};
2627 case PCI_DEVICE_ID_BALIUS:
2628 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2629 "Obsolete, Unsupported Fibre Channel Adapter"};
2631 case PCI_DEVICE_ID_LANCER_FC:
2632 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2634 case PCI_DEVICE_ID_LANCER_FC_VF:
2635 m = (typeof(m)){"LPe16000", "PCIe",
2636 "Obsolete, Unsupported Fibre Channel Adapter"};
2638 case PCI_DEVICE_ID_LANCER_FCOE:
2640 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2642 case PCI_DEVICE_ID_LANCER_FCOE_VF:
2644 m = (typeof(m)){"OCe15100", "PCIe",
2645 "Obsolete, Unsupported FCoE"};
2647 case PCI_DEVICE_ID_LANCER_G6_FC:
2648 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2650 case PCI_DEVICE_ID_LANCER_G7_FC:
2651 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2653 case PCI_DEVICE_ID_LANCER_G7P_FC:
2654 m = (typeof(m)){"LPe38000", "PCIe", "Fibre Channel Adapter"};
2656 case PCI_DEVICE_ID_SKYHAWK:
2657 case PCI_DEVICE_ID_SKYHAWK_VF:
2659 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2662 m = (typeof(m)){"Unknown", "", ""};
2666 if (mdp && mdp[0] == '\0')
2667 snprintf(mdp, 79,"%s", m.name);
2669 * oneConnect hba requires special processing, they are all initiators
2670 * and we put the port number on the end
2672 if (descp && descp[0] == '\0') {
2674 snprintf(descp, 255,
2675 "Emulex OneConnect %s, %s Initiator %s",
2678 else if (max_speed == 0)
2679 snprintf(descp, 255,
2681 m.name, m.bus, m.function);
2683 snprintf(descp, 255,
2684 "Emulex %s %d%s %s %s",
2685 m.name, max_speed, (GE) ? "GE" : "Gb",
2691 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2692 * @phba: pointer to lpfc hba data structure.
2693 * @pring: pointer to a IOCB ring.
2694 * @cnt: the number of IOCBs to be posted to the IOCB ring.
2696 * This routine posts a given number of IOCBs with the associated DMA buffer
2697 * descriptors specified by the cnt argument to the given IOCB ring.
2700 * The number of IOCBs NOT able to be posted to the IOCB ring.
2703 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2706 struct lpfc_iocbq *iocb;
2707 struct lpfc_dmabuf *mp1, *mp2;
2709 cnt += pring->missbufcnt;
2711 /* While there are buffers to post */
2713 /* Allocate buffer for command iocb */
2714 iocb = lpfc_sli_get_iocbq(phba);
2716 pring->missbufcnt = cnt;
2721 /* 2 buffers can be posted per command */
2722 /* Allocate buffer to post */
2723 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2725 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2726 if (!mp1 || !mp1->virt) {
2728 lpfc_sli_release_iocbq(phba, iocb);
2729 pring->missbufcnt = cnt;
2733 INIT_LIST_HEAD(&mp1->list);
2734 /* Allocate buffer to post */
2736 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2738 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2740 if (!mp2 || !mp2->virt) {
2742 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2744 lpfc_sli_release_iocbq(phba, iocb);
2745 pring->missbufcnt = cnt;
2749 INIT_LIST_HEAD(&mp2->list);
2754 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2755 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2756 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2757 icmd->ulpBdeCount = 1;
2760 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2761 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2762 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2764 icmd->ulpBdeCount = 2;
2767 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2770 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2772 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2776 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2780 lpfc_sli_release_iocbq(phba, iocb);
2781 pring->missbufcnt = cnt;
2784 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2786 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2788 pring->missbufcnt = 0;
2793 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2794 * @phba: pointer to lpfc hba data structure.
2796 * This routine posts initial receive IOCB buffers to the ELS ring. The
2797 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2798 * set to 64 IOCBs. SLI3 only.
2801 * 0 - success (currently always success)
2804 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2806 struct lpfc_sli *psli = &phba->sli;
2808 /* Ring 0, ELS / CT buffers */
2809 lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2810 /* Ring 2 - FCP no buffers needed */
2815 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2818 * lpfc_sha_init - Set up initial array of hash table entries
2819 * @HashResultPointer: pointer to an array as hash table.
2821 * This routine sets up the initial values to the array of hash table entries
2825 lpfc_sha_init(uint32_t * HashResultPointer)
2827 HashResultPointer[0] = 0x67452301;
2828 HashResultPointer[1] = 0xEFCDAB89;
2829 HashResultPointer[2] = 0x98BADCFE;
2830 HashResultPointer[3] = 0x10325476;
2831 HashResultPointer[4] = 0xC3D2E1F0;
2835 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2836 * @HashResultPointer: pointer to an initial/result hash table.
2837 * @HashWorkingPointer: pointer to an working hash table.
2839 * This routine iterates an initial hash table pointed by @HashResultPointer
2840 * with the values from the working hash table pointeed by @HashWorkingPointer.
2841 * The results are putting back to the initial hash table, returned through
2842 * the @HashResultPointer as the result hash table.
2845 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2849 uint32_t A, B, C, D, E;
2852 HashWorkingPointer[t] =
2854 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2856 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2857 } while (++t <= 79);
2859 A = HashResultPointer[0];
2860 B = HashResultPointer[1];
2861 C = HashResultPointer[2];
2862 D = HashResultPointer[3];
2863 E = HashResultPointer[4];
2867 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2868 } else if (t < 40) {
2869 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2870 } else if (t < 60) {
2871 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2873 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2875 TEMP += S(5, A) + E + HashWorkingPointer[t];
2881 } while (++t <= 79);
2883 HashResultPointer[0] += A;
2884 HashResultPointer[1] += B;
2885 HashResultPointer[2] += C;
2886 HashResultPointer[3] += D;
2887 HashResultPointer[4] += E;
2892 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2893 * @RandomChallenge: pointer to the entry of host challenge random number array.
2894 * @HashWorking: pointer to the entry of the working hash array.
2896 * This routine calculates the working hash array referred by @HashWorking
2897 * from the challenge random numbers associated with the host, referred by
2898 * @RandomChallenge. The result is put into the entry of the working hash
2899 * array and returned by reference through @HashWorking.
2902 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2904 *HashWorking = (*RandomChallenge ^ *HashWorking);
2908 * lpfc_hba_init - Perform special handling for LC HBA initialization
2909 * @phba: pointer to lpfc hba data structure.
2910 * @hbainit: pointer to an array of unsigned 32-bit integers.
2912 * This routine performs the special handling for LC HBA initialization.
2915 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2918 uint32_t *HashWorking;
2919 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2921 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2925 HashWorking[0] = HashWorking[78] = *pwwnn++;
2926 HashWorking[1] = HashWorking[79] = *pwwnn;
2928 for (t = 0; t < 7; t++)
2929 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2931 lpfc_sha_init(hbainit);
2932 lpfc_sha_iterate(hbainit, HashWorking);
2937 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2938 * @vport: pointer to a virtual N_Port data structure.
2940 * This routine performs the necessary cleanups before deleting the @vport.
2941 * It invokes the discovery state machine to perform necessary state
2942 * transitions and to release the ndlps associated with the @vport. Note,
2943 * the physical port is treated as @vport 0.
2946 lpfc_cleanup(struct lpfc_vport *vport)
2948 struct lpfc_hba *phba = vport->phba;
2949 struct lpfc_nodelist *ndlp, *next_ndlp;
2952 if (phba->link_state > LPFC_LINK_DOWN)
2953 lpfc_port_link_failure(vport);
2955 /* Clean up VMID resources */
2956 if (lpfc_is_vmid_enabled(phba))
2957 lpfc_vmid_vport_cleanup(vport);
2959 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2960 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2961 ndlp->nlp_DID == Fabric_DID) {
2962 /* Just free up ndlp with Fabric_DID for vports */
2967 if (ndlp->nlp_DID == Fabric_Cntl_DID &&
2968 ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2973 /* Fabric Ports not in UNMAPPED state are cleaned up in the
2976 if (ndlp->nlp_type & NLP_FABRIC &&
2977 ndlp->nlp_state == NLP_STE_UNMAPPED_NODE)
2978 lpfc_disc_state_machine(vport, ndlp, NULL,
2979 NLP_EVT_DEVICE_RECOVERY);
2981 if (!(ndlp->fc4_xpt_flags & (NVME_XPT_REGD|SCSI_XPT_REGD)))
2982 lpfc_disc_state_machine(vport, ndlp, NULL,
2986 /* At this point, ALL ndlp's should be gone
2987 * because of the previous NLP_EVT_DEVICE_RM.
2988 * Lets wait for this to happen, if needed.
2990 while (!list_empty(&vport->fc_nodes)) {
2992 lpfc_printf_vlog(vport, KERN_ERR,
2994 "0233 Nodelist not empty\n");
2995 list_for_each_entry_safe(ndlp, next_ndlp,
2996 &vport->fc_nodes, nlp_listp) {
2997 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2999 "0282 did:x%x ndlp:x%px "
3000 "refcnt:%d xflags x%x nflag x%x\n",
3001 ndlp->nlp_DID, (void *)ndlp,
3002 kref_read(&ndlp->kref),
3003 ndlp->fc4_xpt_flags,
3009 /* Wait for any activity on ndlps to settle */
3012 lpfc_cleanup_vports_rrqs(vport, NULL);
3016 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
3017 * @vport: pointer to a virtual N_Port data structure.
3019 * This routine stops all the timers associated with a @vport. This function
3020 * is invoked before disabling or deleting a @vport. Note that the physical
3021 * port is treated as @vport 0.
3024 lpfc_stop_vport_timers(struct lpfc_vport *vport)
3026 del_timer_sync(&vport->els_tmofunc);
3027 del_timer_sync(&vport->delayed_disc_tmo);
3028 lpfc_can_disctmo(vport);
3033 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
3034 * @phba: pointer to lpfc hba data structure.
3036 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
3037 * caller of this routine should already hold the host lock.
3040 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
3042 /* Clear pending FCF rediscovery wait flag */
3043 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3045 /* Now, try to stop the timer */
3046 del_timer(&phba->fcf.redisc_wait);
3050 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
3051 * @phba: pointer to lpfc hba data structure.
3053 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
3054 * checks whether the FCF rediscovery wait timer is pending with the host
3055 * lock held before proceeding with disabling the timer and clearing the
3056 * wait timer pendig flag.
3059 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
3061 spin_lock_irq(&phba->hbalock);
3062 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3063 /* FCF rediscovery timer already fired or stopped */
3064 spin_unlock_irq(&phba->hbalock);
3067 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3068 /* Clear failover in progress flags */
3069 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
3070 spin_unlock_irq(&phba->hbalock);
3074 * lpfc_cmf_stop - Stop CMF processing
3075 * @phba: pointer to lpfc hba data structure.
3077 * This is called when the link goes down or if CMF mode is turned OFF.
3078 * It is also called when going offline or unloaded just before the
3079 * congestion info buffer is unregistered.
3082 lpfc_cmf_stop(struct lpfc_hba *phba)
3085 struct lpfc_cgn_stat *cgs;
3087 /* We only do something if CMF is enabled */
3088 if (!phba->sli4_hba.pc_sli4_params.cmf)
3091 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3092 "6221 Stop CMF / Cancel Timer\n");
3094 /* Cancel the CMF timer */
3095 hrtimer_cancel(&phba->cmf_timer);
3097 /* Zero CMF counters */
3098 atomic_set(&phba->cmf_busy, 0);
3099 for_each_present_cpu(cpu) {
3100 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
3101 atomic64_set(&cgs->total_bytes, 0);
3102 atomic64_set(&cgs->rcv_bytes, 0);
3103 atomic_set(&cgs->rx_io_cnt, 0);
3104 atomic64_set(&cgs->rx_latency, 0);
3106 atomic_set(&phba->cmf_bw_wait, 0);
3108 /* Resume any blocked IO - Queue unblock on workqueue */
3109 queue_work(phba->wq, &phba->unblock_request_work);
3112 static inline uint64_t
3113 lpfc_get_max_line_rate(struct lpfc_hba *phba)
3115 uint64_t rate = lpfc_sli_port_speed_get(phba);
3117 return ((((unsigned long)rate) * 1024 * 1024) / 10);
3121 lpfc_cmf_signal_init(struct lpfc_hba *phba)
3123 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3124 "6223 Signal CMF init\n");
3126 /* Use the new fc_linkspeed to recalculate */
3127 phba->cmf_interval_rate = LPFC_CMF_INTERVAL;
3128 phba->cmf_max_line_rate = lpfc_get_max_line_rate(phba);
3129 phba->cmf_link_byte_count = div_u64(phba->cmf_max_line_rate *
3130 phba->cmf_interval_rate, 1000);
3131 phba->cmf_max_bytes_per_interval = phba->cmf_link_byte_count;
3133 /* This is a signal to firmware to sync up CMF BW with link speed */
3134 lpfc_issue_cmf_sync_wqe(phba, 0, 0);
3138 * lpfc_cmf_start - Start CMF processing
3139 * @phba: pointer to lpfc hba data structure.
3141 * This is called when the link comes up or if CMF mode is turned OFF
3142 * to Monitor or Managed.
3145 lpfc_cmf_start(struct lpfc_hba *phba)
3147 struct lpfc_cgn_stat *cgs;
3150 /* We only do something if CMF is enabled */
3151 if (!phba->sli4_hba.pc_sli4_params.cmf ||
3152 phba->cmf_active_mode == LPFC_CFG_OFF)
3155 /* Reinitialize congestion buffer info */
3156 lpfc_init_congestion_buf(phba);
3158 atomic_set(&phba->cgn_fabric_warn_cnt, 0);
3159 atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
3160 atomic_set(&phba->cgn_sync_alarm_cnt, 0);
3161 atomic_set(&phba->cgn_sync_warn_cnt, 0);
3163 atomic_set(&phba->cmf_busy, 0);
3164 for_each_present_cpu(cpu) {
3165 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
3166 atomic64_set(&cgs->total_bytes, 0);
3167 atomic64_set(&cgs->rcv_bytes, 0);
3168 atomic_set(&cgs->rx_io_cnt, 0);
3169 atomic64_set(&cgs->rx_latency, 0);
3171 phba->cmf_latency.tv_sec = 0;
3172 phba->cmf_latency.tv_nsec = 0;
3174 lpfc_cmf_signal_init(phba);
3176 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3177 "6222 Start CMF / Timer\n");
3179 phba->cmf_timer_cnt = 0;
3180 hrtimer_start(&phba->cmf_timer,
3181 ktime_set(0, LPFC_CMF_INTERVAL * 1000000),
3183 /* Setup for latency check in IO cmpl routines */
3184 ktime_get_real_ts64(&phba->cmf_latency);
3186 atomic_set(&phba->cmf_bw_wait, 0);
3187 atomic_set(&phba->cmf_stop_io, 0);
3191 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
3192 * @phba: pointer to lpfc hba data structure.
3194 * This routine stops all the timers associated with a HBA. This function is
3195 * invoked before either putting a HBA offline or unloading the driver.
3198 lpfc_stop_hba_timers(struct lpfc_hba *phba)
3201 lpfc_stop_vport_timers(phba->pport);
3202 cancel_delayed_work_sync(&phba->eq_delay_work);
3203 cancel_delayed_work_sync(&phba->idle_stat_delay_work);
3204 del_timer_sync(&phba->sli.mbox_tmo);
3205 del_timer_sync(&phba->fabric_block_timer);
3206 del_timer_sync(&phba->eratt_poll);
3207 del_timer_sync(&phba->hb_tmofunc);
3208 if (phba->sli_rev == LPFC_SLI_REV4) {
3209 del_timer_sync(&phba->rrq_tmr);
3210 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
3212 phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
3214 switch (phba->pci_dev_grp) {
3215 case LPFC_PCI_DEV_LP:
3216 /* Stop any LightPulse device specific driver timers */
3217 del_timer_sync(&phba->fcp_poll_timer);
3219 case LPFC_PCI_DEV_OC:
3220 /* Stop any OneConnect device specific driver timers */
3221 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3224 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3225 "0297 Invalid device group (x%x)\n",
3233 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
3234 * @phba: pointer to lpfc hba data structure.
3235 * @mbx_action: flag for mailbox no wait action.
3237 * This routine marks a HBA's management interface as blocked. Once the HBA's
3238 * management interface is marked as blocked, all the user space access to
3239 * the HBA, whether they are from sysfs interface or libdfc interface will
3240 * all be blocked. The HBA is set to block the management interface when the
3241 * driver prepares the HBA interface for online or offline.
3244 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
3246 unsigned long iflag;
3247 uint8_t actcmd = MBX_HEARTBEAT;
3248 unsigned long timeout;
3250 spin_lock_irqsave(&phba->hbalock, iflag);
3251 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
3252 spin_unlock_irqrestore(&phba->hbalock, iflag);
3253 if (mbx_action == LPFC_MBX_NO_WAIT)
3255 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
3256 spin_lock_irqsave(&phba->hbalock, iflag);
3257 if (phba->sli.mbox_active) {
3258 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
3259 /* Determine how long we might wait for the active mailbox
3260 * command to be gracefully completed by firmware.
3262 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
3263 phba->sli.mbox_active) * 1000) + jiffies;
3265 spin_unlock_irqrestore(&phba->hbalock, iflag);
3267 /* Wait for the outstnading mailbox command to complete */
3268 while (phba->sli.mbox_active) {
3269 /* Check active mailbox complete status every 2ms */
3271 if (time_after(jiffies, timeout)) {
3272 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3273 "2813 Mgmt IO is Blocked %x "
3274 "- mbox cmd %x still active\n",
3275 phba->sli.sli_flag, actcmd);
3282 * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3283 * @phba: pointer to lpfc hba data structure.
3285 * Allocate RPIs for all active remote nodes. This is needed whenever
3286 * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3287 * is to fixup the temporary rpi assignments.
3290 lpfc_sli4_node_prep(struct lpfc_hba *phba)
3292 struct lpfc_nodelist *ndlp, *next_ndlp;
3293 struct lpfc_vport **vports;
3296 if (phba->sli_rev != LPFC_SLI_REV4)
3299 vports = lpfc_create_vport_work_array(phba);
3303 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3304 if (vports[i]->load_flag & FC_UNLOADING)
3307 list_for_each_entry_safe(ndlp, next_ndlp,
3308 &vports[i]->fc_nodes,
3310 rpi = lpfc_sli4_alloc_rpi(phba);
3311 if (rpi == LPFC_RPI_ALLOC_ERROR) {
3312 /* TODO print log? */
3315 ndlp->nlp_rpi = rpi;
3316 lpfc_printf_vlog(ndlp->vport, KERN_INFO,
3317 LOG_NODE | LOG_DISCOVERY,
3318 "0009 Assign RPI x%x to ndlp x%px "
3319 "DID:x%06x flg:x%x\n",
3320 ndlp->nlp_rpi, ndlp, ndlp->nlp_DID,
3324 lpfc_destroy_vport_work_array(phba, vports);
3328 * lpfc_create_expedite_pool - create expedite pool
3329 * @phba: pointer to lpfc hba data structure.
3331 * This routine moves a batch of XRIs from lpfc_io_buf_list_put of HWQ 0
3332 * to expedite pool. Mark them as expedite.
3334 static void lpfc_create_expedite_pool(struct lpfc_hba *phba)
3336 struct lpfc_sli4_hdw_queue *qp;
3337 struct lpfc_io_buf *lpfc_ncmd;
3338 struct lpfc_io_buf *lpfc_ncmd_next;
3339 struct lpfc_epd_pool *epd_pool;
3340 unsigned long iflag;
3342 epd_pool = &phba->epd_pool;
3343 qp = &phba->sli4_hba.hdwq[0];
3345 spin_lock_init(&epd_pool->lock);
3346 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3347 spin_lock(&epd_pool->lock);
3348 INIT_LIST_HEAD(&epd_pool->list);
3349 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3350 &qp->lpfc_io_buf_list_put, list) {
3351 list_move_tail(&lpfc_ncmd->list, &epd_pool->list);
3352 lpfc_ncmd->expedite = true;
3355 if (epd_pool->count >= XRI_BATCH)
3358 spin_unlock(&epd_pool->lock);
3359 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3363 * lpfc_destroy_expedite_pool - destroy expedite pool
3364 * @phba: pointer to lpfc hba data structure.
3366 * This routine returns XRIs from expedite pool to lpfc_io_buf_list_put
3367 * of HWQ 0. Clear the mark.
3369 static void lpfc_destroy_expedite_pool(struct lpfc_hba *phba)
3371 struct lpfc_sli4_hdw_queue *qp;
3372 struct lpfc_io_buf *lpfc_ncmd;
3373 struct lpfc_io_buf *lpfc_ncmd_next;
3374 struct lpfc_epd_pool *epd_pool;
3375 unsigned long iflag;
3377 epd_pool = &phba->epd_pool;
3378 qp = &phba->sli4_hba.hdwq[0];
3380 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3381 spin_lock(&epd_pool->lock);
3382 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3383 &epd_pool->list, list) {
3384 list_move_tail(&lpfc_ncmd->list,
3385 &qp->lpfc_io_buf_list_put);
3386 lpfc_ncmd->flags = false;
3390 spin_unlock(&epd_pool->lock);
3391 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3395 * lpfc_create_multixri_pools - create multi-XRI pools
3396 * @phba: pointer to lpfc hba data structure.
3398 * This routine initialize public, private per HWQ. Then, move XRIs from
3399 * lpfc_io_buf_list_put to public pool. High and low watermark are also
3402 void lpfc_create_multixri_pools(struct lpfc_hba *phba)
3407 struct lpfc_io_buf *lpfc_ncmd;
3408 struct lpfc_io_buf *lpfc_ncmd_next;
3409 unsigned long iflag;
3410 struct lpfc_sli4_hdw_queue *qp;
3411 struct lpfc_multixri_pool *multixri_pool;
3412 struct lpfc_pbl_pool *pbl_pool;
3413 struct lpfc_pvt_pool *pvt_pool;
3415 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3416 "1234 num_hdw_queue=%d num_present_cpu=%d common_xri_cnt=%d\n",
3417 phba->cfg_hdw_queue, phba->sli4_hba.num_present_cpu,
3418 phba->sli4_hba.io_xri_cnt);
3420 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3421 lpfc_create_expedite_pool(phba);
3423 hwq_count = phba->cfg_hdw_queue;
3424 count_per_hwq = phba->sli4_hba.io_xri_cnt / hwq_count;
3426 for (i = 0; i < hwq_count; i++) {
3427 multixri_pool = kzalloc(sizeof(*multixri_pool), GFP_KERNEL);
3429 if (!multixri_pool) {
3430 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3431 "1238 Failed to allocate memory for "
3434 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3435 lpfc_destroy_expedite_pool(phba);
3439 qp = &phba->sli4_hba.hdwq[j];
3440 kfree(qp->p_multixri_pool);
3443 phba->cfg_xri_rebalancing = 0;
3447 qp = &phba->sli4_hba.hdwq[i];
3448 qp->p_multixri_pool = multixri_pool;
3450 multixri_pool->xri_limit = count_per_hwq;
3451 multixri_pool->rrb_next_hwqid = i;
3453 /* Deal with public free xri pool */
3454 pbl_pool = &multixri_pool->pbl_pool;
3455 spin_lock_init(&pbl_pool->lock);
3456 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3457 spin_lock(&pbl_pool->lock);
3458 INIT_LIST_HEAD(&pbl_pool->list);
3459 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3460 &qp->lpfc_io_buf_list_put, list) {
3461 list_move_tail(&lpfc_ncmd->list, &pbl_pool->list);
3465 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3466 "1235 Moved %d buffers from PUT list over to pbl_pool[%d]\n",
3467 pbl_pool->count, i);
3468 spin_unlock(&pbl_pool->lock);
3469 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3471 /* Deal with private free xri pool */
3472 pvt_pool = &multixri_pool->pvt_pool;
3473 pvt_pool->high_watermark = multixri_pool->xri_limit / 2;
3474 pvt_pool->low_watermark = XRI_BATCH;
3475 spin_lock_init(&pvt_pool->lock);
3476 spin_lock_irqsave(&pvt_pool->lock, iflag);
3477 INIT_LIST_HEAD(&pvt_pool->list);
3478 pvt_pool->count = 0;
3479 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
3484 * lpfc_destroy_multixri_pools - destroy multi-XRI pools
3485 * @phba: pointer to lpfc hba data structure.
3487 * This routine returns XRIs from public/private to lpfc_io_buf_list_put.
3489 static void lpfc_destroy_multixri_pools(struct lpfc_hba *phba)
3493 struct lpfc_io_buf *lpfc_ncmd;
3494 struct lpfc_io_buf *lpfc_ncmd_next;
3495 unsigned long iflag;
3496 struct lpfc_sli4_hdw_queue *qp;
3497 struct lpfc_multixri_pool *multixri_pool;
3498 struct lpfc_pbl_pool *pbl_pool;
3499 struct lpfc_pvt_pool *pvt_pool;
3501 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3502 lpfc_destroy_expedite_pool(phba);
3504 if (!(phba->pport->load_flag & FC_UNLOADING))
3505 lpfc_sli_flush_io_rings(phba);
3507 hwq_count = phba->cfg_hdw_queue;
3509 for (i = 0; i < hwq_count; i++) {
3510 qp = &phba->sli4_hba.hdwq[i];
3511 multixri_pool = qp->p_multixri_pool;
3515 qp->p_multixri_pool = NULL;
3517 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3519 /* Deal with public free xri pool */
3520 pbl_pool = &multixri_pool->pbl_pool;
3521 spin_lock(&pbl_pool->lock);
3523 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3524 "1236 Moving %d buffers from pbl_pool[%d] TO PUT list\n",
3525 pbl_pool->count, i);
3527 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3528 &pbl_pool->list, list) {
3529 list_move_tail(&lpfc_ncmd->list,
3530 &qp->lpfc_io_buf_list_put);
3535 INIT_LIST_HEAD(&pbl_pool->list);
3536 pbl_pool->count = 0;
3538 spin_unlock(&pbl_pool->lock);
3540 /* Deal with private free xri pool */
3541 pvt_pool = &multixri_pool->pvt_pool;
3542 spin_lock(&pvt_pool->lock);
3544 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3545 "1237 Moving %d buffers from pvt_pool[%d] TO PUT list\n",
3546 pvt_pool->count, i);
3548 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3549 &pvt_pool->list, list) {
3550 list_move_tail(&lpfc_ncmd->list,
3551 &qp->lpfc_io_buf_list_put);
3556 INIT_LIST_HEAD(&pvt_pool->list);
3557 pvt_pool->count = 0;
3559 spin_unlock(&pvt_pool->lock);
3560 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3562 kfree(multixri_pool);
3567 * lpfc_online - Initialize and bring a HBA online
3568 * @phba: pointer to lpfc hba data structure.
3570 * This routine initializes the HBA and brings a HBA online. During this
3571 * process, the management interface is blocked to prevent user space access
3572 * to the HBA interfering with the driver initialization.
3579 lpfc_online(struct lpfc_hba *phba)
3581 struct lpfc_vport *vport;
3582 struct lpfc_vport **vports;
3584 bool vpis_cleared = false;
3588 vport = phba->pport;
3590 if (!(vport->fc_flag & FC_OFFLINE_MODE))
3593 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3594 "0458 Bring Adapter online\n");
3596 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3598 if (phba->sli_rev == LPFC_SLI_REV4) {
3599 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3600 lpfc_unblock_mgmt_io(phba);
3603 spin_lock_irq(&phba->hbalock);
3604 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3605 vpis_cleared = true;
3606 spin_unlock_irq(&phba->hbalock);
3608 /* Reestablish the local initiator port.
3609 * The offline process destroyed the previous lport.
3611 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3612 !phba->nvmet_support) {
3613 error = lpfc_nvme_create_localport(phba->pport);
3615 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3616 "6132 NVME restore reg failed "
3617 "on nvmei error x%x\n", error);
3620 lpfc_sli_queue_init(phba);
3621 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3622 lpfc_unblock_mgmt_io(phba);
3627 vports = lpfc_create_vport_work_array(phba);
3628 if (vports != NULL) {
3629 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3630 struct Scsi_Host *shost;
3631 shost = lpfc_shost_from_vport(vports[i]);
3632 spin_lock_irq(shost->host_lock);
3633 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3634 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3635 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3636 if (phba->sli_rev == LPFC_SLI_REV4) {
3637 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3638 if ((vpis_cleared) &&
3639 (vports[i]->port_type !=
3640 LPFC_PHYSICAL_PORT))
3643 spin_unlock_irq(shost->host_lock);
3646 lpfc_destroy_vport_work_array(phba, vports);
3648 if (phba->cfg_xri_rebalancing)
3649 lpfc_create_multixri_pools(phba);
3651 lpfc_cpuhp_add(phba);
3653 lpfc_unblock_mgmt_io(phba);
3658 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3659 * @phba: pointer to lpfc hba data structure.
3661 * This routine marks a HBA's management interface as not blocked. Once the
3662 * HBA's management interface is marked as not blocked, all the user space
3663 * access to the HBA, whether they are from sysfs interface or libdfc
3664 * interface will be allowed. The HBA is set to block the management interface
3665 * when the driver prepares the HBA interface for online or offline and then
3666 * set to unblock the management interface afterwards.
3669 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3671 unsigned long iflag;
3673 spin_lock_irqsave(&phba->hbalock, iflag);
3674 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3675 spin_unlock_irqrestore(&phba->hbalock, iflag);
3679 * lpfc_offline_prep - Prepare a HBA to be brought offline
3680 * @phba: pointer to lpfc hba data structure.
3681 * @mbx_action: flag for mailbox shutdown action.
3683 * This routine is invoked to prepare a HBA to be brought offline. It performs
3684 * unregistration login to all the nodes on all vports and flushes the mailbox
3685 * queue to make it ready to be brought offline.
3688 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3690 struct lpfc_vport *vport = phba->pport;
3691 struct lpfc_nodelist *ndlp, *next_ndlp;
3692 struct lpfc_vport **vports;
3693 struct Scsi_Host *shost;
3697 if (vport->fc_flag & FC_OFFLINE_MODE)
3700 lpfc_block_mgmt_io(phba, mbx_action);
3702 lpfc_linkdown(phba);
3704 offline = pci_channel_offline(phba->pcidev);
3706 /* Issue an unreg_login to all nodes on all vports */
3707 vports = lpfc_create_vport_work_array(phba);
3708 if (vports != NULL) {
3709 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3710 if (vports[i]->load_flag & FC_UNLOADING)
3712 shost = lpfc_shost_from_vport(vports[i]);
3713 spin_lock_irq(shost->host_lock);
3714 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3715 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3716 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3717 spin_unlock_irq(shost->host_lock);
3719 shost = lpfc_shost_from_vport(vports[i]);
3720 list_for_each_entry_safe(ndlp, next_ndlp,
3721 &vports[i]->fc_nodes,
3724 spin_lock_irq(&ndlp->lock);
3725 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3726 spin_unlock_irq(&ndlp->lock);
3729 spin_lock_irq(&ndlp->lock);
3730 ndlp->nlp_flag &= ~(NLP_UNREG_INP |
3731 NLP_RPI_REGISTERED);
3732 spin_unlock_irq(&ndlp->lock);
3734 lpfc_unreg_rpi(vports[i], ndlp);
3737 * Whenever an SLI4 port goes offline, free the
3738 * RPI. Get a new RPI when the adapter port
3739 * comes back online.
3741 if (phba->sli_rev == LPFC_SLI_REV4) {
3742 lpfc_printf_vlog(vports[i], KERN_INFO,
3743 LOG_NODE | LOG_DISCOVERY,
3744 "0011 Free RPI x%x on "
3745 "ndlp: x%px did x%x\n",
3746 ndlp->nlp_rpi, ndlp,
3748 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3749 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
3752 if (ndlp->nlp_type & NLP_FABRIC) {
3753 lpfc_disc_state_machine(vports[i], ndlp,
3754 NULL, NLP_EVT_DEVICE_RECOVERY);
3756 /* Don't remove the node unless the node
3757 * has been unregistered with the
3758 * transport, and we're not in recovery
3759 * before dev_loss_tmo triggered.
3760 * Otherwise, let dev_loss take care of
3763 if (!(ndlp->save_flags &
3764 NLP_IN_RECOV_POST_DEV_LOSS) &&
3765 !(ndlp->fc4_xpt_flags &
3766 (NVME_XPT_REGD | SCSI_XPT_REGD)))
3767 lpfc_disc_state_machine
3775 lpfc_destroy_vport_work_array(phba, vports);
3777 lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3780 flush_workqueue(phba->wq);
3784 * lpfc_offline - Bring a HBA offline
3785 * @phba: pointer to lpfc hba data structure.
3787 * This routine actually brings a HBA offline. It stops all the timers
3788 * associated with the HBA, brings down the SLI layer, and eventually
3789 * marks the HBA as in offline state for the upper layer protocol.
3792 lpfc_offline(struct lpfc_hba *phba)
3794 struct Scsi_Host *shost;
3795 struct lpfc_vport **vports;
3798 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3801 /* stop port and all timers associated with this hba */
3802 lpfc_stop_port(phba);
3804 /* Tear down the local and target port registrations. The
3805 * nvme transports need to cleanup.
3807 lpfc_nvmet_destroy_targetport(phba);
3808 lpfc_nvme_destroy_localport(phba->pport);
3810 vports = lpfc_create_vport_work_array(phba);
3812 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3813 lpfc_stop_vport_timers(vports[i]);
3814 lpfc_destroy_vport_work_array(phba, vports);
3815 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3816 "0460 Bring Adapter offline\n");
3817 /* Bring down the SLI Layer and cleanup. The HBA is offline
3819 lpfc_sli_hba_down(phba);
3820 spin_lock_irq(&phba->hbalock);
3822 spin_unlock_irq(&phba->hbalock);
3823 vports = lpfc_create_vport_work_array(phba);
3825 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3826 shost = lpfc_shost_from_vport(vports[i]);
3827 spin_lock_irq(shost->host_lock);
3828 vports[i]->work_port_events = 0;
3829 vports[i]->fc_flag |= FC_OFFLINE_MODE;
3830 spin_unlock_irq(shost->host_lock);
3832 lpfc_destroy_vport_work_array(phba, vports);
3833 /* If OFFLINE flag is clear (i.e. unloading), cpuhp removal is handled
3836 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3837 __lpfc_cpuhp_remove(phba);
3839 if (phba->cfg_xri_rebalancing)
3840 lpfc_destroy_multixri_pools(phba);
3844 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3845 * @phba: pointer to lpfc hba data structure.
3847 * This routine is to free all the SCSI buffers and IOCBs from the driver
3848 * list back to kernel. It is called from lpfc_pci_remove_one to free
3849 * the internal resources before the device is removed from the system.
3852 lpfc_scsi_free(struct lpfc_hba *phba)
3854 struct lpfc_io_buf *sb, *sb_next;
3856 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3859 spin_lock_irq(&phba->hbalock);
3861 /* Release all the lpfc_scsi_bufs maintained by this host. */
3863 spin_lock(&phba->scsi_buf_list_put_lock);
3864 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3866 list_del(&sb->list);
3867 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3870 phba->total_scsi_bufs--;
3872 spin_unlock(&phba->scsi_buf_list_put_lock);
3874 spin_lock(&phba->scsi_buf_list_get_lock);
3875 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3877 list_del(&sb->list);
3878 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3881 phba->total_scsi_bufs--;
3883 spin_unlock(&phba->scsi_buf_list_get_lock);
3884 spin_unlock_irq(&phba->hbalock);
3888 * lpfc_io_free - Free all the IO buffers and IOCBs from driver lists
3889 * @phba: pointer to lpfc hba data structure.
3891 * This routine is to free all the IO buffers and IOCBs from the driver
3892 * list back to kernel. It is called from lpfc_pci_remove_one to free
3893 * the internal resources before the device is removed from the system.
3896 lpfc_io_free(struct lpfc_hba *phba)
3898 struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
3899 struct lpfc_sli4_hdw_queue *qp;
3902 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3903 qp = &phba->sli4_hba.hdwq[idx];
3904 /* Release all the lpfc_nvme_bufs maintained by this host. */
3905 spin_lock(&qp->io_buf_list_put_lock);
3906 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3907 &qp->lpfc_io_buf_list_put,
3909 list_del(&lpfc_ncmd->list);
3911 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3912 lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3913 if (phba->cfg_xpsgl && !phba->nvmet_support)
3914 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3915 lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3917 qp->total_io_bufs--;
3919 spin_unlock(&qp->io_buf_list_put_lock);
3921 spin_lock(&qp->io_buf_list_get_lock);
3922 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3923 &qp->lpfc_io_buf_list_get,
3925 list_del(&lpfc_ncmd->list);
3927 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3928 lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3929 if (phba->cfg_xpsgl && !phba->nvmet_support)
3930 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3931 lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3933 qp->total_io_bufs--;
3935 spin_unlock(&qp->io_buf_list_get_lock);
3940 * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3941 * @phba: pointer to lpfc hba data structure.
3943 * This routine first calculates the sizes of the current els and allocated
3944 * scsi sgl lists, and then goes through all sgls to updates the physical
3945 * XRIs assigned due to port function reset. During port initialization, the
3946 * current els and allocated scsi sgl lists are 0s.
3949 * 0 - successful (for now, it always returns 0)
3952 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3954 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3955 uint16_t i, lxri, xri_cnt, els_xri_cnt;
3956 LIST_HEAD(els_sgl_list);
3960 * update on pci function's els xri-sgl list
3962 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3964 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3965 /* els xri-sgl expanded */
3966 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3967 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3968 "3157 ELS xri-sgl count increased from "
3969 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3971 /* allocate the additional els sgls */
3972 for (i = 0; i < xri_cnt; i++) {
3973 sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3975 if (sglq_entry == NULL) {
3976 lpfc_printf_log(phba, KERN_ERR,
3978 "2562 Failure to allocate an "
3979 "ELS sgl entry:%d\n", i);
3983 sglq_entry->buff_type = GEN_BUFF_TYPE;
3984 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3986 if (sglq_entry->virt == NULL) {
3988 lpfc_printf_log(phba, KERN_ERR,
3990 "2563 Failure to allocate an "
3991 "ELS mbuf:%d\n", i);
3995 sglq_entry->sgl = sglq_entry->virt;
3996 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3997 sglq_entry->state = SGL_FREED;
3998 list_add_tail(&sglq_entry->list, &els_sgl_list);
4000 spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
4001 list_splice_init(&els_sgl_list,
4002 &phba->sli4_hba.lpfc_els_sgl_list);
4003 spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
4004 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
4005 /* els xri-sgl shrinked */
4006 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
4007 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4008 "3158 ELS xri-sgl count decreased from "
4009 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
4011 spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
4012 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
4014 /* release extra els sgls from list */
4015 for (i = 0; i < xri_cnt; i++) {
4016 list_remove_head(&els_sgl_list,
4017 sglq_entry, struct lpfc_sglq, list);
4019 __lpfc_mbuf_free(phba, sglq_entry->virt,
4024 list_splice_init(&els_sgl_list,
4025 &phba->sli4_hba.lpfc_els_sgl_list);
4026 spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
4028 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4029 "3163 ELS xri-sgl count unchanged: %d\n",
4031 phba->sli4_hba.els_xri_cnt = els_xri_cnt;
4033 /* update xris to els sgls on the list */
4035 sglq_entry_next = NULL;
4036 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
4037 &phba->sli4_hba.lpfc_els_sgl_list, list) {
4038 lxri = lpfc_sli4_next_xritag(phba);
4039 if (lxri == NO_XRI) {
4040 lpfc_printf_log(phba, KERN_ERR,
4042 "2400 Failed to allocate xri for "
4047 sglq_entry->sli4_lxritag = lxri;
4048 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4053 lpfc_free_els_sgl_list(phba);
4058 * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
4059 * @phba: pointer to lpfc hba data structure.
4061 * This routine first calculates the sizes of the current els and allocated
4062 * scsi sgl lists, and then goes through all sgls to updates the physical
4063 * XRIs assigned due to port function reset. During port initialization, the
4064 * current els and allocated scsi sgl lists are 0s.
4067 * 0 - successful (for now, it always returns 0)
4070 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
4072 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
4073 uint16_t i, lxri, xri_cnt, els_xri_cnt;
4074 uint16_t nvmet_xri_cnt;
4075 LIST_HEAD(nvmet_sgl_list);
4079 * update on pci function's nvmet xri-sgl list
4081 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4083 /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
4084 nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4085 if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
4086 /* els xri-sgl expanded */
4087 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
4088 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4089 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
4090 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
4091 /* allocate the additional nvmet sgls */
4092 for (i = 0; i < xri_cnt; i++) {
4093 sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
4095 if (sglq_entry == NULL) {
4096 lpfc_printf_log(phba, KERN_ERR,
4098 "6303 Failure to allocate an "
4099 "NVMET sgl entry:%d\n", i);
4103 sglq_entry->buff_type = NVMET_BUFF_TYPE;
4104 sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
4106 if (sglq_entry->virt == NULL) {
4108 lpfc_printf_log(phba, KERN_ERR,
4110 "6304 Failure to allocate an "
4111 "NVMET buf:%d\n", i);
4115 sglq_entry->sgl = sglq_entry->virt;
4116 memset(sglq_entry->sgl, 0,
4117 phba->cfg_sg_dma_buf_size);
4118 sglq_entry->state = SGL_FREED;
4119 list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
4121 spin_lock_irq(&phba->hbalock);
4122 spin_lock(&phba->sli4_hba.sgl_list_lock);
4123 list_splice_init(&nvmet_sgl_list,
4124 &phba->sli4_hba.lpfc_nvmet_sgl_list);
4125 spin_unlock(&phba->sli4_hba.sgl_list_lock);
4126 spin_unlock_irq(&phba->hbalock);
4127 } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
4128 /* nvmet xri-sgl shrunk */
4129 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
4130 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4131 "6305 NVMET xri-sgl count decreased from "
4132 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
4134 spin_lock_irq(&phba->hbalock);
4135 spin_lock(&phba->sli4_hba.sgl_list_lock);
4136 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
4138 /* release extra nvmet sgls from list */
4139 for (i = 0; i < xri_cnt; i++) {
4140 list_remove_head(&nvmet_sgl_list,
4141 sglq_entry, struct lpfc_sglq, list);
4143 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
4148 list_splice_init(&nvmet_sgl_list,
4149 &phba->sli4_hba.lpfc_nvmet_sgl_list);
4150 spin_unlock(&phba->sli4_hba.sgl_list_lock);
4151 spin_unlock_irq(&phba->hbalock);
4153 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4154 "6306 NVMET xri-sgl count unchanged: %d\n",
4156 phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
4158 /* update xris to nvmet sgls on the list */
4160 sglq_entry_next = NULL;
4161 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
4162 &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
4163 lxri = lpfc_sli4_next_xritag(phba);
4164 if (lxri == NO_XRI) {
4165 lpfc_printf_log(phba, KERN_ERR,
4167 "6307 Failed to allocate xri for "
4172 sglq_entry->sli4_lxritag = lxri;
4173 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4178 lpfc_free_nvmet_sgl_list(phba);
4183 lpfc_io_buf_flush(struct lpfc_hba *phba, struct list_head *cbuf)
4186 struct lpfc_sli4_hdw_queue *qp;
4187 struct lpfc_io_buf *lpfc_cmd;
4188 struct lpfc_io_buf *iobufp, *prev_iobufp;
4189 int idx, cnt, xri, inserted;
4192 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4193 qp = &phba->sli4_hba.hdwq[idx];
4194 spin_lock_irq(&qp->io_buf_list_get_lock);
4195 spin_lock(&qp->io_buf_list_put_lock);
4197 /* Take everything off the get and put lists */
4198 list_splice_init(&qp->lpfc_io_buf_list_get, &blist);
4199 list_splice(&qp->lpfc_io_buf_list_put, &blist);
4200 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
4201 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
4202 cnt += qp->get_io_bufs + qp->put_io_bufs;
4203 qp->get_io_bufs = 0;
4204 qp->put_io_bufs = 0;
4205 qp->total_io_bufs = 0;
4206 spin_unlock(&qp->io_buf_list_put_lock);
4207 spin_unlock_irq(&qp->io_buf_list_get_lock);
4211 * Take IO buffers off blist and put on cbuf sorted by XRI.
4212 * This is because POST_SGL takes a sequential range of XRIs
4213 * to post to the firmware.
4215 for (idx = 0; idx < cnt; idx++) {
4216 list_remove_head(&blist, lpfc_cmd, struct lpfc_io_buf, list);
4220 list_add_tail(&lpfc_cmd->list, cbuf);
4223 xri = lpfc_cmd->cur_iocbq.sli4_xritag;
4226 list_for_each_entry(iobufp, cbuf, list) {
4227 if (xri < iobufp->cur_iocbq.sli4_xritag) {
4229 list_add(&lpfc_cmd->list,
4230 &prev_iobufp->list);
4232 list_add(&lpfc_cmd->list, cbuf);
4236 prev_iobufp = iobufp;
4239 list_add_tail(&lpfc_cmd->list, cbuf);
4245 lpfc_io_buf_replenish(struct lpfc_hba *phba, struct list_head *cbuf)
4247 struct lpfc_sli4_hdw_queue *qp;
4248 struct lpfc_io_buf *lpfc_cmd;
4251 qp = phba->sli4_hba.hdwq;
4253 while (!list_empty(cbuf)) {
4254 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4255 list_remove_head(cbuf, lpfc_cmd,
4256 struct lpfc_io_buf, list);
4260 qp = &phba->sli4_hba.hdwq[idx];
4261 lpfc_cmd->hdwq_no = idx;
4262 lpfc_cmd->hdwq = qp;
4263 lpfc_cmd->cur_iocbq.wqe_cmpl = NULL;
4264 lpfc_cmd->cur_iocbq.iocb_cmpl = NULL;
4265 spin_lock(&qp->io_buf_list_put_lock);
4266 list_add_tail(&lpfc_cmd->list,
4267 &qp->lpfc_io_buf_list_put);
4269 qp->total_io_bufs++;
4270 spin_unlock(&qp->io_buf_list_put_lock);
4277 * lpfc_sli4_io_sgl_update - update xri-sgl sizing and mapping
4278 * @phba: pointer to lpfc hba data structure.
4280 * This routine first calculates the sizes of the current els and allocated
4281 * scsi sgl lists, and then goes through all sgls to updates the physical
4282 * XRIs assigned due to port function reset. During port initialization, the
4283 * current els and allocated scsi sgl lists are 0s.
4286 * 0 - successful (for now, it always returns 0)
4289 lpfc_sli4_io_sgl_update(struct lpfc_hba *phba)
4291 struct lpfc_io_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
4292 uint16_t i, lxri, els_xri_cnt;
4293 uint16_t io_xri_cnt, io_xri_max;
4294 LIST_HEAD(io_sgl_list);
4298 * update on pci function's allocated nvme xri-sgl list
4301 /* maximum number of xris available for nvme buffers */
4302 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4303 io_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4304 phba->sli4_hba.io_xri_max = io_xri_max;
4306 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4307 "6074 Current allocated XRI sgl count:%d, "
4308 "maximum XRI count:%d\n",
4309 phba->sli4_hba.io_xri_cnt,
4310 phba->sli4_hba.io_xri_max);
4312 cnt = lpfc_io_buf_flush(phba, &io_sgl_list);
4314 if (phba->sli4_hba.io_xri_cnt > phba->sli4_hba.io_xri_max) {
4315 /* max nvme xri shrunk below the allocated nvme buffers */
4316 io_xri_cnt = phba->sli4_hba.io_xri_cnt -
4317 phba->sli4_hba.io_xri_max;
4318 /* release the extra allocated nvme buffers */
4319 for (i = 0; i < io_xri_cnt; i++) {
4320 list_remove_head(&io_sgl_list, lpfc_ncmd,
4321 struct lpfc_io_buf, list);
4323 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4325 lpfc_ncmd->dma_handle);
4329 phba->sli4_hba.io_xri_cnt -= io_xri_cnt;
4332 /* update xris associated to remaining allocated nvme buffers */
4334 lpfc_ncmd_next = NULL;
4335 phba->sli4_hba.io_xri_cnt = cnt;
4336 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4337 &io_sgl_list, list) {
4338 lxri = lpfc_sli4_next_xritag(phba);
4339 if (lxri == NO_XRI) {
4340 lpfc_printf_log(phba, KERN_ERR,
4342 "6075 Failed to allocate xri for "
4347 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
4348 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4350 cnt = lpfc_io_buf_replenish(phba, &io_sgl_list);
4359 * lpfc_new_io_buf - IO buffer allocator for HBA with SLI4 IF spec
4360 * @phba: Pointer to lpfc hba data structure.
4361 * @num_to_alloc: The requested number of buffers to allocate.
4363 * This routine allocates nvme buffers for device with SLI-4 interface spec,
4364 * the nvme buffer contains all the necessary information needed to initiate
4365 * an I/O. After allocating up to @num_to_allocate IO buffers and put
4366 * them on a list, it post them to the port by using SGL block post.
4369 * int - number of IO buffers that were allocated and posted.
4370 * 0 = failure, less than num_to_alloc is a partial failure.
4373 lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc)
4375 struct lpfc_io_buf *lpfc_ncmd;
4376 struct lpfc_iocbq *pwqeq;
4377 uint16_t iotag, lxri = 0;
4378 int bcnt, num_posted;
4379 LIST_HEAD(prep_nblist);
4380 LIST_HEAD(post_nblist);
4381 LIST_HEAD(nvme_nblist);
4383 phba->sli4_hba.io_xri_cnt = 0;
4384 for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
4385 lpfc_ncmd = kzalloc(sizeof(*lpfc_ncmd), GFP_KERNEL);
4389 * Get memory from the pci pool to map the virt space to
4390 * pci bus space for an I/O. The DMA buffer includes the
4391 * number of SGE's necessary to support the sg_tablesize.
4393 lpfc_ncmd->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool,
4395 &lpfc_ncmd->dma_handle);
4396 if (!lpfc_ncmd->data) {
4401 if (phba->cfg_xpsgl && !phba->nvmet_support) {
4402 INIT_LIST_HEAD(&lpfc_ncmd->dma_sgl_xtra_list);
4405 * 4K Page alignment is CRITICAL to BlockGuard, double
4408 if ((phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
4409 (((unsigned long)(lpfc_ncmd->data) &
4410 (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) {
4411 lpfc_printf_log(phba, KERN_ERR,
4413 "3369 Memory alignment err: "
4415 (unsigned long)lpfc_ncmd->data);
4416 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4418 lpfc_ncmd->dma_handle);
4424 INIT_LIST_HEAD(&lpfc_ncmd->dma_cmd_rsp_list);
4426 lxri = lpfc_sli4_next_xritag(phba);
4427 if (lxri == NO_XRI) {
4428 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4429 lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4433 pwqeq = &lpfc_ncmd->cur_iocbq;
4435 /* Allocate iotag for lpfc_ncmd->cur_iocbq. */
4436 iotag = lpfc_sli_next_iotag(phba, pwqeq);
4438 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4439 lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4441 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4442 "6121 Failed to allocate IOTAG for"
4443 " XRI:0x%x\n", lxri);
4444 lpfc_sli4_free_xri(phba, lxri);
4447 pwqeq->sli4_lxritag = lxri;
4448 pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4449 pwqeq->context1 = lpfc_ncmd;
4451 /* Initialize local short-hand pointers. */
4452 lpfc_ncmd->dma_sgl = lpfc_ncmd->data;
4453 lpfc_ncmd->dma_phys_sgl = lpfc_ncmd->dma_handle;
4454 lpfc_ncmd->cur_iocbq.context1 = lpfc_ncmd;
4455 spin_lock_init(&lpfc_ncmd->buf_lock);
4457 /* add the nvme buffer to a post list */
4458 list_add_tail(&lpfc_ncmd->list, &post_nblist);
4459 phba->sli4_hba.io_xri_cnt++;
4461 lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
4462 "6114 Allocate %d out of %d requested new NVME "
4463 "buffers\n", bcnt, num_to_alloc);
4465 /* post the list of nvme buffer sgls to port if available */
4466 if (!list_empty(&post_nblist))
4467 num_posted = lpfc_sli4_post_io_sgl_list(
4468 phba, &post_nblist, bcnt);
4476 lpfc_get_wwpn(struct lpfc_hba *phba)
4480 LPFC_MBOXQ_t *mboxq;
4483 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4486 return (uint64_t)-1;
4488 /* First get WWN of HBA instance */
4489 lpfc_read_nv(phba, mboxq);
4490 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4491 if (rc != MBX_SUCCESS) {
4492 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4493 "6019 Mailbox failed , mbxCmd x%x "
4494 "READ_NV, mbxStatus x%x\n",
4495 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4496 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
4497 mempool_free(mboxq, phba->mbox_mem_pool);
4498 return (uint64_t) -1;
4501 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
4502 /* wwn is WWPN of HBA instance */
4503 mempool_free(mboxq, phba->mbox_mem_pool);
4504 if (phba->sli_rev == LPFC_SLI_REV4)
4505 return be64_to_cpu(wwn);
4507 return rol64(wwn, 32);
4511 * lpfc_vmid_res_alloc - Allocates resources for VMID
4512 * @phba: pointer to lpfc hba data structure.
4513 * @vport: pointer to vport data structure
4515 * This routine allocated the resources needed for the VMID.
4522 lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport)
4524 /* VMID feature is supported only on SLI4 */
4525 if (phba->sli_rev == LPFC_SLI_REV3) {
4526 phba->cfg_vmid_app_header = 0;
4527 phba->cfg_vmid_priority_tagging = 0;
4530 if (lpfc_is_vmid_enabled(phba)) {
4532 kcalloc(phba->cfg_max_vmid, sizeof(struct lpfc_vmid),
4537 rwlock_init(&vport->vmid_lock);
4539 /* Set the VMID parameters for the vport */
4540 vport->vmid_priority_tagging = phba->cfg_vmid_priority_tagging;
4541 vport->vmid_inactivity_timeout =
4542 phba->cfg_vmid_inactivity_timeout;
4543 vport->max_vmid = phba->cfg_max_vmid;
4544 vport->cur_vmid_cnt = 0;
4546 vport->vmid_priority_range = bitmap_zalloc
4547 (LPFC_VMID_MAX_PRIORITY_RANGE, GFP_KERNEL);
4549 if (!vport->vmid_priority_range) {
4554 hash_init(vport->hash_table);
4560 * lpfc_create_port - Create an FC port
4561 * @phba: pointer to lpfc hba data structure.
4562 * @instance: a unique integer ID to this FC port.
4563 * @dev: pointer to the device data structure.
4565 * This routine creates a FC port for the upper layer protocol. The FC port
4566 * can be created on top of either a physical port or a virtual port provided
4567 * by the HBA. This routine also allocates a SCSI host data structure (shost)
4568 * and associates the FC port created before adding the shost into the SCSI
4572 * @vport - pointer to the virtual N_Port data structure.
4573 * NULL - port create failed.
4576 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
4578 struct lpfc_vport *vport;
4579 struct Scsi_Host *shost = NULL;
4580 struct scsi_host_template *template;
4584 bool use_no_reset_hba = false;
4587 if (lpfc_no_hba_reset_cnt) {
4588 if (phba->sli_rev < LPFC_SLI_REV4 &&
4589 dev == &phba->pcidev->dev) {
4590 /* Reset the port first */
4591 lpfc_sli_brdrestart(phba);
4592 rc = lpfc_sli_chipset_init(phba);
4596 wwn = lpfc_get_wwpn(phba);
4599 for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
4600 if (wwn == lpfc_no_hba_reset[i]) {
4601 lpfc_printf_log(phba, KERN_ERR,
4603 "6020 Setting use_no_reset port=%llx\n",
4605 use_no_reset_hba = true;
4610 /* Seed template for SCSI host registration */
4611 if (dev == &phba->pcidev->dev) {
4612 template = &phba->port_template;
4614 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
4615 /* Seed physical port template */
4616 memcpy(template, &lpfc_template, sizeof(*template));
4618 if (use_no_reset_hba)
4619 /* template is for a no reset SCSI Host */
4620 template->eh_host_reset_handler = NULL;
4622 /* Template for all vports this physical port creates */
4623 memcpy(&phba->vport_template, &lpfc_template,
4625 phba->vport_template.shost_groups = lpfc_vport_groups;
4626 phba->vport_template.eh_bus_reset_handler = NULL;
4627 phba->vport_template.eh_host_reset_handler = NULL;
4628 phba->vport_template.vendor_id = 0;
4630 /* Initialize the host templates with updated value */
4631 if (phba->sli_rev == LPFC_SLI_REV4) {
4632 template->sg_tablesize = phba->cfg_scsi_seg_cnt;
4633 phba->vport_template.sg_tablesize =
4634 phba->cfg_scsi_seg_cnt;
4636 template->sg_tablesize = phba->cfg_sg_seg_cnt;
4637 phba->vport_template.sg_tablesize =
4638 phba->cfg_sg_seg_cnt;
4642 /* NVMET is for physical port only */
4643 memcpy(template, &lpfc_template_nvme,
4647 template = &phba->vport_template;
4650 shost = scsi_host_alloc(template, sizeof(struct lpfc_vport));
4654 vport = (struct lpfc_vport *) shost->hostdata;
4656 vport->load_flag |= FC_LOADING;
4657 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4658 vport->fc_rscn_flush = 0;
4659 lpfc_get_vport_cfgparam(vport);
4661 /* Adjust value in vport */
4662 vport->cfg_enable_fc4_type = phba->cfg_enable_fc4_type;
4664 shost->unique_id = instance;
4665 shost->max_id = LPFC_MAX_TARGET;
4666 shost->max_lun = vport->cfg_max_luns;
4667 shost->this_id = -1;
4668 shost->max_cmd_len = 16;
4670 if (phba->sli_rev == LPFC_SLI_REV4) {
4671 if (!phba->cfg_fcp_mq_threshold ||
4672 phba->cfg_fcp_mq_threshold > phba->cfg_hdw_queue)
4673 phba->cfg_fcp_mq_threshold = phba->cfg_hdw_queue;
4675 shost->nr_hw_queues = min_t(int, 2 * num_possible_nodes(),
4676 phba->cfg_fcp_mq_threshold);
4678 shost->dma_boundary =
4679 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
4681 if (phba->cfg_xpsgl && !phba->nvmet_support)
4682 shost->sg_tablesize = LPFC_MAX_SG_TABLESIZE;
4684 shost->sg_tablesize = phba->cfg_scsi_seg_cnt;
4686 /* SLI-3 has a limited number of hardware queues (3),
4687 * thus there is only one for FCP processing.
4689 shost->nr_hw_queues = 1;
4692 * Set initial can_queue value since 0 is no longer supported and
4693 * scsi_add_host will fail. This will be adjusted later based on the
4694 * max xri value determined in hba setup.
4696 shost->can_queue = phba->cfg_hba_queue_depth - 10;
4697 if (dev != &phba->pcidev->dev) {
4698 shost->transportt = lpfc_vport_transport_template;
4699 vport->port_type = LPFC_NPIV_PORT;
4701 shost->transportt = lpfc_transport_template;
4702 vport->port_type = LPFC_PHYSICAL_PORT;
4705 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4706 "9081 CreatePort TMPLATE type %x TBLsize %d "
4708 vport->port_type, shost->sg_tablesize,
4709 phba->cfg_scsi_seg_cnt, phba->cfg_sg_seg_cnt);
4711 /* Allocate the resources for VMID */
4712 rc = lpfc_vmid_res_alloc(phba, vport);
4717 /* Initialize all internally managed lists. */
4718 INIT_LIST_HEAD(&vport->fc_nodes);
4719 INIT_LIST_HEAD(&vport->rcv_buffer_list);
4720 spin_lock_init(&vport->work_port_lock);
4722 timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
4724 timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
4726 timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
4728 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4729 lpfc_setup_bg(phba, shost);
4731 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
4735 spin_lock_irq(&phba->port_list_lock);
4736 list_add_tail(&vport->listentry, &phba->port_list);
4737 spin_unlock_irq(&phba->port_list_lock);
4742 bitmap_free(vport->vmid_priority_range);
4743 scsi_host_put(shost);
4749 * destroy_port - destroy an FC port
4750 * @vport: pointer to an lpfc virtual N_Port data structure.
4752 * This routine destroys a FC port from the upper layer protocol. All the
4753 * resources associated with the port are released.
4756 destroy_port(struct lpfc_vport *vport)
4758 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4759 struct lpfc_hba *phba = vport->phba;
4761 lpfc_debugfs_terminate(vport);
4762 fc_remove_host(shost);
4763 scsi_remove_host(shost);
4765 spin_lock_irq(&phba->port_list_lock);
4766 list_del_init(&vport->listentry);
4767 spin_unlock_irq(&phba->port_list_lock);
4769 lpfc_cleanup(vport);
4774 * lpfc_get_instance - Get a unique integer ID
4776 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4777 * uses the kernel idr facility to perform the task.
4780 * instance - a unique integer ID allocated as the new instance.
4781 * -1 - lpfc get instance failed.
4784 lpfc_get_instance(void)
4788 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4789 return ret < 0 ? -1 : ret;
4793 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4794 * @shost: pointer to SCSI host data structure.
4795 * @time: elapsed time of the scan in jiffies.
4797 * This routine is called by the SCSI layer with a SCSI host to determine
4798 * whether the scan host is finished.
4800 * Note: there is no scan_start function as adapter initialization will have
4801 * asynchronously kicked off the link initialization.
4804 * 0 - SCSI host scan is not over yet.
4805 * 1 - SCSI host scan is over.
4807 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4809 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4810 struct lpfc_hba *phba = vport->phba;
4813 spin_lock_irq(shost->host_lock);
4815 if (vport->load_flag & FC_UNLOADING) {
4819 if (time >= msecs_to_jiffies(30 * 1000)) {
4820 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4821 "0461 Scanning longer than 30 "
4822 "seconds. Continuing initialization\n");
4826 if (time >= msecs_to_jiffies(15 * 1000) &&
4827 phba->link_state <= LPFC_LINK_DOWN) {
4828 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4829 "0465 Link down longer than 15 "
4830 "seconds. Continuing initialization\n");
4835 if (vport->port_state != LPFC_VPORT_READY)
4837 if (vport->num_disc_nodes || vport->fc_prli_sent)
4839 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4841 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4847 spin_unlock_irq(shost->host_lock);
4851 static void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4853 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4854 struct lpfc_hba *phba = vport->phba;
4856 fc_host_supported_speeds(shost) = 0;
4858 * Avoid reporting supported link speed for FCoE as it can't be
4859 * controlled via FCoE.
4861 if (phba->hba_flag & HBA_FCOE_MODE)
4864 if (phba->lmt & LMT_256Gb)
4865 fc_host_supported_speeds(shost) |= FC_PORTSPEED_256GBIT;
4866 if (phba->lmt & LMT_128Gb)
4867 fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4868 if (phba->lmt & LMT_64Gb)
4869 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4870 if (phba->lmt & LMT_32Gb)
4871 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4872 if (phba->lmt & LMT_16Gb)
4873 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4874 if (phba->lmt & LMT_10Gb)
4875 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4876 if (phba->lmt & LMT_8Gb)
4877 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4878 if (phba->lmt & LMT_4Gb)
4879 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4880 if (phba->lmt & LMT_2Gb)
4881 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4882 if (phba->lmt & LMT_1Gb)
4883 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4887 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4888 * @shost: pointer to SCSI host data structure.
4890 * This routine initializes a given SCSI host attributes on a FC port. The
4891 * SCSI host can be either on top of a physical port or a virtual port.
4893 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4895 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4896 struct lpfc_hba *phba = vport->phba;
4898 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
4901 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4902 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4903 fc_host_supported_classes(shost) = FC_COS_CLASS3;
4905 memset(fc_host_supported_fc4s(shost), 0,
4906 sizeof(fc_host_supported_fc4s(shost)));
4907 fc_host_supported_fc4s(shost)[2] = 1;
4908 fc_host_supported_fc4s(shost)[7] = 1;
4910 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4911 sizeof fc_host_symbolic_name(shost));
4913 lpfc_host_supported_speeds_set(shost);
4915 fc_host_maxframe_size(shost) =
4916 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4917 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4919 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4921 /* This value is also unchanging */
4922 memset(fc_host_active_fc4s(shost), 0,
4923 sizeof(fc_host_active_fc4s(shost)));
4924 fc_host_active_fc4s(shost)[2] = 1;
4925 fc_host_active_fc4s(shost)[7] = 1;
4927 fc_host_max_npiv_vports(shost) = phba->max_vpi;
4928 spin_lock_irq(shost->host_lock);
4929 vport->load_flag &= ~FC_LOADING;
4930 spin_unlock_irq(shost->host_lock);
4934 * lpfc_stop_port_s3 - Stop SLI3 device port
4935 * @phba: pointer to lpfc hba data structure.
4937 * This routine is invoked to stop an SLI3 device port, it stops the device
4938 * from generating interrupts and stops the device driver's timers for the
4942 lpfc_stop_port_s3(struct lpfc_hba *phba)
4944 /* Clear all interrupt enable conditions */
4945 writel(0, phba->HCregaddr);
4946 readl(phba->HCregaddr); /* flush */
4947 /* Clear all pending interrupts */
4948 writel(0xffffffff, phba->HAregaddr);
4949 readl(phba->HAregaddr); /* flush */
4951 /* Reset some HBA SLI setup states */
4952 lpfc_stop_hba_timers(phba);
4953 phba->pport->work_port_events = 0;
4957 * lpfc_stop_port_s4 - Stop SLI4 device port
4958 * @phba: pointer to lpfc hba data structure.
4960 * This routine is invoked to stop an SLI4 device port, it stops the device
4961 * from generating interrupts and stops the device driver's timers for the
4965 lpfc_stop_port_s4(struct lpfc_hba *phba)
4967 /* Reset some HBA SLI4 setup states */
4968 lpfc_stop_hba_timers(phba);
4970 phba->pport->work_port_events = 0;
4971 phba->sli4_hba.intr_enable = 0;
4975 * lpfc_stop_port - Wrapper function for stopping hba port
4976 * @phba: Pointer to HBA context object.
4978 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4979 * the API jump table function pointer from the lpfc_hba struct.
4982 lpfc_stop_port(struct lpfc_hba *phba)
4984 phba->lpfc_stop_port(phba);
4987 flush_workqueue(phba->wq);
4991 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4992 * @phba: Pointer to hba for which this call is being executed.
4994 * This routine starts the timer waiting for the FCF rediscovery to complete.
4997 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4999 unsigned long fcf_redisc_wait_tmo =
5000 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
5001 /* Start fcf rediscovery wait period timer */
5002 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
5003 spin_lock_irq(&phba->hbalock);
5004 /* Allow action to new fcf asynchronous event */
5005 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
5006 /* Mark the FCF rediscovery pending state */
5007 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
5008 spin_unlock_irq(&phba->hbalock);
5012 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
5013 * @t: Timer context used to obtain the pointer to lpfc hba data structure.
5015 * This routine is invoked when waiting for FCF table rediscover has been
5016 * timed out. If new FCF record(s) has (have) been discovered during the
5017 * wait period, a new FCF event shall be added to the FCOE async event
5018 * list, and then worker thread shall be waked up for processing from the
5019 * worker thread context.
5022 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
5024 struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
5026 /* Don't send FCF rediscovery event if timer cancelled */
5027 spin_lock_irq(&phba->hbalock);
5028 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
5029 spin_unlock_irq(&phba->hbalock);
5032 /* Clear FCF rediscovery timer pending flag */
5033 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
5034 /* FCF rediscovery event to worker thread */
5035 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
5036 spin_unlock_irq(&phba->hbalock);
5037 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
5038 "2776 FCF rediscover quiescent timer expired\n");
5039 /* wake up worker thread */
5040 lpfc_worker_wake_up(phba);
5044 * lpfc_vmid_poll - VMID timeout detection
5045 * @t: Timer context used to obtain the pointer to lpfc hba data structure.
5047 * This routine is invoked when there is no I/O on by a VM for the specified
5048 * amount of time. When this situation is detected, the VMID has to be
5049 * deregistered from the switch and all the local resources freed. The VMID
5050 * will be reassigned to the VM once the I/O begins.
5053 lpfc_vmid_poll(struct timer_list *t)
5055 struct lpfc_hba *phba = from_timer(phba, t, inactive_vmid_poll);
5058 /* check if there is a need to issue QFPA */
5059 if (phba->pport->vmid_priority_tagging) {
5061 phba->pport->work_port_events |= WORKER_CHECK_VMID_ISSUE_QFPA;
5064 /* Is the vmid inactivity timer enabled */
5065 if (phba->pport->vmid_inactivity_timeout ||
5066 phba->pport->load_flag & FC_DEREGISTER_ALL_APP_ID) {
5068 phba->pport->work_port_events |= WORKER_CHECK_INACTIVE_VMID;
5072 lpfc_worker_wake_up(phba);
5074 /* restart the timer for the next iteration */
5075 mod_timer(&phba->inactive_vmid_poll, jiffies + msecs_to_jiffies(1000 *
5080 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
5081 * @phba: pointer to lpfc hba data structure.
5082 * @acqe_link: pointer to the async link completion queue entry.
5084 * This routine is to parse the SLI4 link-attention link fault code.
5087 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
5088 struct lpfc_acqe_link *acqe_link)
5090 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
5091 case LPFC_ASYNC_LINK_FAULT_NONE:
5092 case LPFC_ASYNC_LINK_FAULT_LOCAL:
5093 case LPFC_ASYNC_LINK_FAULT_REMOTE:
5094 case LPFC_ASYNC_LINK_FAULT_LR_LRR:
5097 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5098 "0398 Unknown link fault code: x%x\n",
5099 bf_get(lpfc_acqe_link_fault, acqe_link));
5105 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
5106 * @phba: pointer to lpfc hba data structure.
5107 * @acqe_link: pointer to the async link completion queue entry.
5109 * This routine is to parse the SLI4 link attention type and translate it
5110 * into the base driver's link attention type coding.
5112 * Return: Link attention type in terms of base driver's coding.
5115 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
5116 struct lpfc_acqe_link *acqe_link)
5120 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
5121 case LPFC_ASYNC_LINK_STATUS_DOWN:
5122 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
5123 att_type = LPFC_ATT_LINK_DOWN;
5125 case LPFC_ASYNC_LINK_STATUS_UP:
5126 /* Ignore physical link up events - wait for logical link up */
5127 att_type = LPFC_ATT_RESERVED;
5129 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
5130 att_type = LPFC_ATT_LINK_UP;
5133 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5134 "0399 Invalid link attention type: x%x\n",
5135 bf_get(lpfc_acqe_link_status, acqe_link));
5136 att_type = LPFC_ATT_RESERVED;
5143 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
5144 * @phba: pointer to lpfc hba data structure.
5146 * This routine is to get an SLI3 FC port's link speed in Mbps.
5148 * Return: link speed in terms of Mbps.
5151 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
5153 uint32_t link_speed;
5155 if (!lpfc_is_link_up(phba))
5158 if (phba->sli_rev <= LPFC_SLI_REV3) {
5159 switch (phba->fc_linkspeed) {
5160 case LPFC_LINK_SPEED_1GHZ:
5163 case LPFC_LINK_SPEED_2GHZ:
5166 case LPFC_LINK_SPEED_4GHZ:
5169 case LPFC_LINK_SPEED_8GHZ:
5172 case LPFC_LINK_SPEED_10GHZ:
5175 case LPFC_LINK_SPEED_16GHZ:
5182 if (phba->sli4_hba.link_state.logical_speed)
5184 phba->sli4_hba.link_state.logical_speed;
5186 link_speed = phba->sli4_hba.link_state.speed;
5192 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
5193 * @phba: pointer to lpfc hba data structure.
5194 * @evt_code: asynchronous event code.
5195 * @speed_code: asynchronous event link speed code.
5197 * This routine is to parse the giving SLI4 async event link speed code into
5198 * value of Mbps for the link speed.
5200 * Return: link speed in terms of Mbps.
5203 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
5206 uint32_t port_speed;
5209 case LPFC_TRAILER_CODE_LINK:
5210 switch (speed_code) {
5211 case LPFC_ASYNC_LINK_SPEED_ZERO:
5214 case LPFC_ASYNC_LINK_SPEED_10MBPS:
5217 case LPFC_ASYNC_LINK_SPEED_100MBPS:
5220 case LPFC_ASYNC_LINK_SPEED_1GBPS:
5223 case LPFC_ASYNC_LINK_SPEED_10GBPS:
5226 case LPFC_ASYNC_LINK_SPEED_20GBPS:
5229 case LPFC_ASYNC_LINK_SPEED_25GBPS:
5232 case LPFC_ASYNC_LINK_SPEED_40GBPS:
5235 case LPFC_ASYNC_LINK_SPEED_100GBPS:
5236 port_speed = 100000;
5242 case LPFC_TRAILER_CODE_FC:
5243 switch (speed_code) {
5244 case LPFC_FC_LA_SPEED_UNKNOWN:
5247 case LPFC_FC_LA_SPEED_1G:
5250 case LPFC_FC_LA_SPEED_2G:
5253 case LPFC_FC_LA_SPEED_4G:
5256 case LPFC_FC_LA_SPEED_8G:
5259 case LPFC_FC_LA_SPEED_10G:
5262 case LPFC_FC_LA_SPEED_16G:
5265 case LPFC_FC_LA_SPEED_32G:
5268 case LPFC_FC_LA_SPEED_64G:
5271 case LPFC_FC_LA_SPEED_128G:
5272 port_speed = 128000;
5274 case LPFC_FC_LA_SPEED_256G:
5275 port_speed = 256000;
5288 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
5289 * @phba: pointer to lpfc hba data structure.
5290 * @acqe_link: pointer to the async link completion queue entry.
5292 * This routine is to handle the SLI4 asynchronous FCoE link event.
5295 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
5296 struct lpfc_acqe_link *acqe_link)
5298 struct lpfc_dmabuf *mp;
5301 struct lpfc_mbx_read_top *la;
5305 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
5306 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
5308 phba->fcoe_eventtag = acqe_link->event_tag;
5309 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5311 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5312 "0395 The mboxq allocation failed\n");
5315 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5317 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5318 "0396 The lpfc_dmabuf allocation failed\n");
5321 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
5323 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5324 "0397 The mbuf allocation failed\n");
5325 goto out_free_dmabuf;
5328 /* Cleanup any outstanding ELS commands */
5329 lpfc_els_flush_all_cmd(phba);
5331 /* Block ELS IOCBs until we have done process link event */
5332 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5334 /* Update link event statistics */
5335 phba->sli.slistat.link_event++;
5337 /* Create lpfc_handle_latt mailbox command from link ACQE */
5338 lpfc_read_topology(phba, pmb, mp);
5339 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5340 pmb->vport = phba->pport;
5342 /* Keep the link status for extra SLI4 state machine reference */
5343 phba->sli4_hba.link_state.speed =
5344 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
5345 bf_get(lpfc_acqe_link_speed, acqe_link));
5346 phba->sli4_hba.link_state.duplex =
5347 bf_get(lpfc_acqe_link_duplex, acqe_link);
5348 phba->sli4_hba.link_state.status =
5349 bf_get(lpfc_acqe_link_status, acqe_link);
5350 phba->sli4_hba.link_state.type =
5351 bf_get(lpfc_acqe_link_type, acqe_link);
5352 phba->sli4_hba.link_state.number =
5353 bf_get(lpfc_acqe_link_number, acqe_link);
5354 phba->sli4_hba.link_state.fault =
5355 bf_get(lpfc_acqe_link_fault, acqe_link);
5356 phba->sli4_hba.link_state.logical_speed =
5357 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
5359 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5360 "2900 Async FC/FCoE Link event - Speed:%dGBit "
5361 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
5362 "Logical speed:%dMbps Fault:%d\n",
5363 phba->sli4_hba.link_state.speed,
5364 phba->sli4_hba.link_state.topology,
5365 phba->sli4_hba.link_state.status,
5366 phba->sli4_hba.link_state.type,
5367 phba->sli4_hba.link_state.number,
5368 phba->sli4_hba.link_state.logical_speed,
5369 phba->sli4_hba.link_state.fault);
5371 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
5372 * topology info. Note: Optional for non FC-AL ports.
5374 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
5375 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5376 if (rc == MBX_NOT_FINISHED) {
5377 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5378 goto out_free_dmabuf;
5383 * For FCoE Mode: fill in all the topology information we need and call
5384 * the READ_TOPOLOGY completion routine to continue without actually
5385 * sending the READ_TOPOLOGY mailbox command to the port.
5387 /* Initialize completion status */
5389 mb->mbxStatus = MBX_SUCCESS;
5391 /* Parse port fault information field */
5392 lpfc_sli4_parse_latt_fault(phba, acqe_link);
5394 /* Parse and translate link attention fields */
5395 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
5396 la->eventTag = acqe_link->event_tag;
5397 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
5398 bf_set(lpfc_mbx_read_top_link_spd, la,
5399 (bf_get(lpfc_acqe_link_speed, acqe_link)));
5401 /* Fake the the following irrelvant fields */
5402 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
5403 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
5404 bf_set(lpfc_mbx_read_top_il, la, 0);
5405 bf_set(lpfc_mbx_read_top_pb, la, 0);
5406 bf_set(lpfc_mbx_read_top_fa, la, 0);
5407 bf_set(lpfc_mbx_read_top_mm, la, 0);
5409 /* Invoke the lpfc_handle_latt mailbox command callback function */
5410 lpfc_mbx_cmpl_read_topology(phba, pmb);
5417 mempool_free(pmb, phba->mbox_mem_pool);
5421 * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
5423 * @phba: pointer to lpfc hba data structure.
5424 * @speed_code: asynchronous event link speed code.
5426 * This routine is to parse the giving SLI4 async event link speed code into
5427 * value of Read topology link speed.
5429 * Return: link speed in terms of Read topology.
5432 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
5436 switch (speed_code) {
5437 case LPFC_FC_LA_SPEED_1G:
5438 port_speed = LPFC_LINK_SPEED_1GHZ;
5440 case LPFC_FC_LA_SPEED_2G:
5441 port_speed = LPFC_LINK_SPEED_2GHZ;
5443 case LPFC_FC_LA_SPEED_4G:
5444 port_speed = LPFC_LINK_SPEED_4GHZ;
5446 case LPFC_FC_LA_SPEED_8G:
5447 port_speed = LPFC_LINK_SPEED_8GHZ;
5449 case LPFC_FC_LA_SPEED_16G:
5450 port_speed = LPFC_LINK_SPEED_16GHZ;
5452 case LPFC_FC_LA_SPEED_32G:
5453 port_speed = LPFC_LINK_SPEED_32GHZ;
5455 case LPFC_FC_LA_SPEED_64G:
5456 port_speed = LPFC_LINK_SPEED_64GHZ;
5458 case LPFC_FC_LA_SPEED_128G:
5459 port_speed = LPFC_LINK_SPEED_128GHZ;
5461 case LPFC_FC_LA_SPEED_256G:
5462 port_speed = LPFC_LINK_SPEED_256GHZ;
5473 lpfc_cgn_dump_rxmonitor(struct lpfc_hba *phba)
5475 struct rxtable_entry *entry;
5476 int cnt = 0, head, tail, last, start;
5478 head = atomic_read(&phba->rxtable_idx_head);
5479 tail = atomic_read(&phba->rxtable_idx_tail);
5480 if (!phba->rxtable || head == tail) {
5481 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT,
5482 "4411 Rxtable is empty\n");
5488 /* Display the last LPFC_MAX_RXMONITOR_DUMP entries from the rxtable */
5489 while (start != last) {
5493 start = LPFC_MAX_RXMONITOR_ENTRY - 1;
5494 entry = &phba->rxtable[start];
5495 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5496 "4410 %02d: MBPI %lld Xmit %lld Cmpl %lld "
5497 "Lat %lld ASz %lld Info %02d BWUtil %d "
5499 cnt, entry->max_bytes_per_interval,
5500 entry->total_bytes, entry->rcv_bytes,
5501 entry->avg_io_latency, entry->avg_io_size,
5502 entry->cmf_info, entry->timer_utilization,
5503 entry->timer_interval, start);
5505 if (cnt >= LPFC_MAX_RXMONITOR_DUMP)
5511 * lpfc_cgn_update_stat - Save data into congestion stats buffer
5512 * @phba: pointer to lpfc hba data structure.
5513 * @dtag: FPIN descriptor received
5515 * Increment the FPIN received counter/time when it happens.
5518 lpfc_cgn_update_stat(struct lpfc_hba *phba, uint32_t dtag)
5520 struct lpfc_cgn_info *cp;
5522 struct timespec64 cur_time;
5526 /* Make sure we have a congestion info buffer */
5529 cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
5530 ktime_get_real_ts64(&cur_time);
5531 time64_to_tm(cur_time.tv_sec, 0, &broken);
5533 /* Update congestion statistics */
5535 case ELS_DTAG_LNK_INTEGRITY:
5536 cnt = le32_to_cpu(cp->link_integ_notification);
5538 cp->link_integ_notification = cpu_to_le32(cnt);
5540 cp->cgn_stat_lnk_month = broken.tm_mon + 1;
5541 cp->cgn_stat_lnk_day = broken.tm_mday;
5542 cp->cgn_stat_lnk_year = broken.tm_year - 100;
5543 cp->cgn_stat_lnk_hour = broken.tm_hour;
5544 cp->cgn_stat_lnk_min = broken.tm_min;
5545 cp->cgn_stat_lnk_sec = broken.tm_sec;
5547 case ELS_DTAG_DELIVERY:
5548 cnt = le32_to_cpu(cp->delivery_notification);
5550 cp->delivery_notification = cpu_to_le32(cnt);
5552 cp->cgn_stat_del_month = broken.tm_mon + 1;
5553 cp->cgn_stat_del_day = broken.tm_mday;
5554 cp->cgn_stat_del_year = broken.tm_year - 100;
5555 cp->cgn_stat_del_hour = broken.tm_hour;
5556 cp->cgn_stat_del_min = broken.tm_min;
5557 cp->cgn_stat_del_sec = broken.tm_sec;
5559 case ELS_DTAG_PEER_CONGEST:
5560 cnt = le32_to_cpu(cp->cgn_peer_notification);
5562 cp->cgn_peer_notification = cpu_to_le32(cnt);
5564 cp->cgn_stat_peer_month = broken.tm_mon + 1;
5565 cp->cgn_stat_peer_day = broken.tm_mday;
5566 cp->cgn_stat_peer_year = broken.tm_year - 100;
5567 cp->cgn_stat_peer_hour = broken.tm_hour;
5568 cp->cgn_stat_peer_min = broken.tm_min;
5569 cp->cgn_stat_peer_sec = broken.tm_sec;
5571 case ELS_DTAG_CONGESTION:
5572 cnt = le32_to_cpu(cp->cgn_notification);
5574 cp->cgn_notification = cpu_to_le32(cnt);
5576 cp->cgn_stat_cgn_month = broken.tm_mon + 1;
5577 cp->cgn_stat_cgn_day = broken.tm_mday;
5578 cp->cgn_stat_cgn_year = broken.tm_year - 100;
5579 cp->cgn_stat_cgn_hour = broken.tm_hour;
5580 cp->cgn_stat_cgn_min = broken.tm_min;
5581 cp->cgn_stat_cgn_sec = broken.tm_sec;
5583 if (phba->cgn_fpin_frequency &&
5584 phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ) {
5585 value = LPFC_CGN_TIMER_TO_MIN / phba->cgn_fpin_frequency;
5586 cp->cgn_stat_npm = value;
5588 value = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
5589 LPFC_CGN_CRC32_SEED);
5590 cp->cgn_info_crc = cpu_to_le32(value);
5594 * lpfc_cgn_save_evt_cnt - Save data into registered congestion buffer
5595 * @phba: pointer to lpfc hba data structure.
5597 * Save the congestion event data every minute.
5598 * On the hour collapse all the minute data into hour data. Every day
5599 * collapse all the hour data into daily data. Separate driver
5600 * and fabrc congestion event counters that will be saved out
5601 * to the registered congestion buffer every minute.
5604 lpfc_cgn_save_evt_cnt(struct lpfc_hba *phba)
5606 struct lpfc_cgn_info *cp;
5608 struct timespec64 cur_time;
5610 uint16_t value, mvalue;
5613 uint32_t dvalue, wvalue, lvalue, avalue;
5619 /* Make sure we have a congestion info buffer */
5622 cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
5624 if (time_before(jiffies, phba->cgn_evt_timestamp))
5626 phba->cgn_evt_timestamp = jiffies +
5627 msecs_to_jiffies(LPFC_CGN_TIMER_TO_MIN);
5628 phba->cgn_evt_minute++;
5630 /* We should get to this point in the routine on 1 minute intervals */
5632 ktime_get_real_ts64(&cur_time);
5633 time64_to_tm(cur_time.tv_sec, 0, &broken);
5635 if (phba->cgn_fpin_frequency &&
5636 phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ) {
5637 value = LPFC_CGN_TIMER_TO_MIN / phba->cgn_fpin_frequency;
5638 cp->cgn_stat_npm = value;
5641 /* Read and clear the latency counters for this minute */
5642 lvalue = atomic_read(&phba->cgn_latency_evt_cnt);
5643 latsum = atomic64_read(&phba->cgn_latency_evt);
5644 atomic_set(&phba->cgn_latency_evt_cnt, 0);
5645 atomic64_set(&phba->cgn_latency_evt, 0);
5647 /* We need to store MB/sec bandwidth in the congestion information.
5648 * block_cnt is count of 512 byte blocks for the entire minute,
5649 * bps will get bytes per sec before finally converting to MB/sec.
5651 bps = div_u64(phba->rx_block_cnt, LPFC_SEC_MIN) * 512;
5652 phba->rx_block_cnt = 0;
5653 mvalue = bps / (1024 * 1024); /* convert to MB/sec */
5656 /* cgn parameters */
5657 cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
5658 cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
5659 cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
5660 cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
5662 /* Fill in default LUN qdepth */
5663 value = (uint16_t)(phba->pport->cfg_lun_queue_depth);
5664 cp->cgn_lunq = cpu_to_le16(value);
5666 /* Record congestion buffer info - every minute
5667 * cgn_driver_evt_cnt (Driver events)
5668 * cgn_fabric_warn_cnt (Congestion Warnings)
5669 * cgn_latency_evt_cnt / cgn_latency_evt (IO Latency)
5670 * cgn_fabric_alarm_cnt (Congestion Alarms)
5672 index = ++cp->cgn_index_minute;
5673 if (cp->cgn_index_minute == LPFC_MIN_HOUR) {
5674 cp->cgn_index_minute = 0;
5678 /* Get the number of driver events in this sample and reset counter */
5679 dvalue = atomic_read(&phba->cgn_driver_evt_cnt);
5680 atomic_set(&phba->cgn_driver_evt_cnt, 0);
5682 /* Get the number of warning events - FPIN and Signal for this minute */
5684 if ((phba->cgn_reg_fpin & LPFC_CGN_FPIN_WARN) ||
5685 phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
5686 phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5687 wvalue = atomic_read(&phba->cgn_fabric_warn_cnt);
5688 atomic_set(&phba->cgn_fabric_warn_cnt, 0);
5690 /* Get the number of alarm events - FPIN and Signal for this minute */
5692 if ((phba->cgn_reg_fpin & LPFC_CGN_FPIN_ALARM) ||
5693 phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5694 avalue = atomic_read(&phba->cgn_fabric_alarm_cnt);
5695 atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
5697 /* Collect the driver, warning, alarm and latency counts for this
5698 * minute into the driver congestion buffer.
5700 ptr = &cp->cgn_drvr_min[index];
5701 value = (uint16_t)dvalue;
5702 *ptr = cpu_to_le16(value);
5704 ptr = &cp->cgn_warn_min[index];
5705 value = (uint16_t)wvalue;
5706 *ptr = cpu_to_le16(value);
5708 ptr = &cp->cgn_alarm_min[index];
5709 value = (uint16_t)avalue;
5710 *ptr = cpu_to_le16(value);
5712 lptr = &cp->cgn_latency_min[index];
5714 lvalue = (uint32_t)div_u64(latsum, lvalue);
5715 *lptr = cpu_to_le32(lvalue);
5720 /* Collect the bandwidth value into the driver's congesion buffer. */
5721 mptr = &cp->cgn_bw_min[index];
5722 *mptr = cpu_to_le16(mvalue);
5724 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5725 "2418 Congestion Info - minute (%d): %d %d %d %d %d\n",
5726 index, dvalue, wvalue, *lptr, mvalue, avalue);
5729 if ((phba->cgn_evt_minute % LPFC_MIN_HOUR) == 0) {
5730 /* Record congestion buffer info - every hour
5731 * Collapse all minutes into an hour
5733 index = ++cp->cgn_index_hour;
5734 if (cp->cgn_index_hour == LPFC_HOUR_DAY) {
5735 cp->cgn_index_hour = 0;
5745 for (i = 0; i < LPFC_MIN_HOUR; i++) {
5746 dvalue += le16_to_cpu(cp->cgn_drvr_min[i]);
5747 wvalue += le16_to_cpu(cp->cgn_warn_min[i]);
5748 lvalue += le32_to_cpu(cp->cgn_latency_min[i]);
5749 mbps += le16_to_cpu(cp->cgn_bw_min[i]);
5750 avalue += le16_to_cpu(cp->cgn_alarm_min[i]);
5752 if (lvalue) /* Avg of latency averages */
5753 lvalue /= LPFC_MIN_HOUR;
5754 if (mbps) /* Avg of Bandwidth averages */
5755 mvalue = mbps / LPFC_MIN_HOUR;
5757 lptr = &cp->cgn_drvr_hr[index];
5758 *lptr = cpu_to_le32(dvalue);
5759 lptr = &cp->cgn_warn_hr[index];
5760 *lptr = cpu_to_le32(wvalue);
5761 lptr = &cp->cgn_latency_hr[index];
5762 *lptr = cpu_to_le32(lvalue);
5763 mptr = &cp->cgn_bw_hr[index];
5764 *mptr = cpu_to_le16(mvalue);
5765 lptr = &cp->cgn_alarm_hr[index];
5766 *lptr = cpu_to_le32(avalue);
5768 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5769 "2419 Congestion Info - hour "
5770 "(%d): %d %d %d %d %d\n",
5771 index, dvalue, wvalue, lvalue, mvalue, avalue);
5775 if ((phba->cgn_evt_minute % LPFC_MIN_DAY) == 0) {
5776 /* Record congestion buffer info - every hour
5777 * Collapse all hours into a day. Rotate days
5778 * after LPFC_MAX_CGN_DAYS.
5780 index = ++cp->cgn_index_day;
5781 if (cp->cgn_index_day == LPFC_MAX_CGN_DAYS) {
5782 cp->cgn_index_day = 0;
5786 /* Anytime we overwrite daily index 0, after we wrap,
5787 * we will be overwriting the oldest day, so we must
5788 * update the congestion data start time for that day.
5789 * That start time should have previously been saved after
5790 * we wrote the last days worth of data.
5792 if ((phba->hba_flag & HBA_CGN_DAY_WRAP) && index == 0) {
5793 time64_to_tm(phba->cgn_daily_ts.tv_sec, 0, &broken);
5795 cp->cgn_info_month = broken.tm_mon + 1;
5796 cp->cgn_info_day = broken.tm_mday;
5797 cp->cgn_info_year = broken.tm_year - 100;
5798 cp->cgn_info_hour = broken.tm_hour;
5799 cp->cgn_info_minute = broken.tm_min;
5800 cp->cgn_info_second = broken.tm_sec;
5803 (phba, KERN_INFO, LOG_CGN_MGMT,
5804 "2646 CGNInfo idx0 Start Time: "
5805 "%d/%d/%d %d:%d:%d\n",
5806 cp->cgn_info_day, cp->cgn_info_month,
5807 cp->cgn_info_year, cp->cgn_info_hour,
5808 cp->cgn_info_minute, cp->cgn_info_second);
5817 for (i = 0; i < LPFC_HOUR_DAY; i++) {
5818 dvalue += le32_to_cpu(cp->cgn_drvr_hr[i]);
5819 wvalue += le32_to_cpu(cp->cgn_warn_hr[i]);
5820 lvalue += le32_to_cpu(cp->cgn_latency_hr[i]);
5821 mbps += le16_to_cpu(cp->cgn_bw_hr[i]);
5822 avalue += le32_to_cpu(cp->cgn_alarm_hr[i]);
5824 if (lvalue) /* Avg of latency averages */
5825 lvalue /= LPFC_HOUR_DAY;
5826 if (mbps) /* Avg of Bandwidth averages */
5827 mvalue = mbps / LPFC_HOUR_DAY;
5829 lptr = &cp->cgn_drvr_day[index];
5830 *lptr = cpu_to_le32(dvalue);
5831 lptr = &cp->cgn_warn_day[index];
5832 *lptr = cpu_to_le32(wvalue);
5833 lptr = &cp->cgn_latency_day[index];
5834 *lptr = cpu_to_le32(lvalue);
5835 mptr = &cp->cgn_bw_day[index];
5836 *mptr = cpu_to_le16(mvalue);
5837 lptr = &cp->cgn_alarm_day[index];
5838 *lptr = cpu_to_le32(avalue);
5840 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5841 "2420 Congestion Info - daily (%d): "
5843 index, dvalue, wvalue, lvalue, mvalue, avalue);
5845 /* We just wrote LPFC_MAX_CGN_DAYS of data,
5846 * so we are wrapped on any data after this.
5847 * Save this as the start time for the next day.
5849 if (index == (LPFC_MAX_CGN_DAYS - 1)) {
5850 phba->hba_flag |= HBA_CGN_DAY_WRAP;
5851 ktime_get_real_ts64(&phba->cgn_daily_ts);
5855 /* Use the frequency found in the last rcv'ed FPIN */
5856 value = phba->cgn_fpin_frequency;
5857 if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_WARN)
5858 cp->cgn_warn_freq = cpu_to_le16(value);
5859 if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_ALARM)
5860 cp->cgn_alarm_freq = cpu_to_le16(value);
5862 /* Frequency (in ms) Signal Warning/Signal Congestion Notifications
5863 * are received by the HBA
5865 value = phba->cgn_sig_freq;
5867 if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
5868 phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5869 cp->cgn_warn_freq = cpu_to_le16(value);
5870 if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5871 cp->cgn_alarm_freq = cpu_to_le16(value);
5873 lvalue = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
5874 LPFC_CGN_CRC32_SEED);
5875 cp->cgn_info_crc = cpu_to_le32(lvalue);
5879 * lpfc_calc_cmf_latency - latency from start of rxate timer interval
5880 * @phba: The Hba for which this call is being executed.
5882 * The routine calculates the latency from the beginning of the CMF timer
5883 * interval to the current point in time. It is called from IO completion
5884 * when we exceed our Bandwidth limitation for the time interval.
5887 lpfc_calc_cmf_latency(struct lpfc_hba *phba)
5889 struct timespec64 cmpl_time;
5892 ktime_get_real_ts64(&cmpl_time);
5894 /* This routine works on a ms granularity so sec and usec are
5895 * converted accordingly.
5897 if (cmpl_time.tv_sec == phba->cmf_latency.tv_sec) {
5898 msec = (cmpl_time.tv_nsec - phba->cmf_latency.tv_nsec) /
5901 if (cmpl_time.tv_nsec >= phba->cmf_latency.tv_nsec) {
5902 msec = (cmpl_time.tv_sec -
5903 phba->cmf_latency.tv_sec) * MSEC_PER_SEC;
5904 msec += ((cmpl_time.tv_nsec -
5905 phba->cmf_latency.tv_nsec) / NSEC_PER_MSEC);
5907 msec = (cmpl_time.tv_sec - phba->cmf_latency.tv_sec -
5909 msec += (((NSEC_PER_SEC - phba->cmf_latency.tv_nsec) +
5910 cmpl_time.tv_nsec) / NSEC_PER_MSEC);
5917 * lpfc_cmf_timer - This is the timer function for one congestion
5919 * @timer: Pointer to the high resolution timer that expired
5921 static enum hrtimer_restart
5922 lpfc_cmf_timer(struct hrtimer *timer)
5924 struct lpfc_hba *phba = container_of(timer, struct lpfc_hba,
5926 struct rxtable_entry *entry;
5928 uint32_t head, tail;
5929 uint32_t busy, max_read;
5930 uint64_t total, rcv, lat, mbpi, extra, cnt;
5931 int timer_interval = LPFC_CMF_INTERVAL;
5933 struct lpfc_cgn_stat *cgs;
5936 /* Only restart the timer if congestion mgmt is on */
5937 if (phba->cmf_active_mode == LPFC_CFG_OFF ||
5938 !phba->cmf_latency.tv_sec) {
5939 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5940 "6224 CMF timer exit: %d %lld\n",
5941 phba->cmf_active_mode,
5942 (uint64_t)phba->cmf_latency.tv_sec);
5943 return HRTIMER_NORESTART;
5946 /* If pport is not ready yet, just exit and wait for
5947 * the next timer cycle to hit.
5952 /* Do not block SCSI IO while in the timer routine since
5953 * total_bytes will be cleared
5955 atomic_set(&phba->cmf_stop_io, 1);
5957 /* First we need to calculate the actual ms between
5958 * the last timer interrupt and this one. We ask for
5959 * LPFC_CMF_INTERVAL, however the actual time may
5960 * vary depending on system overhead.
5962 ms = lpfc_calc_cmf_latency(phba);
5965 /* Immediately after we calculate the time since the last
5966 * timer interrupt, set the start time for the next
5969 ktime_get_real_ts64(&phba->cmf_latency);
5971 phba->cmf_link_byte_count =
5972 div_u64(phba->cmf_max_line_rate * LPFC_CMF_INTERVAL, 1000);
5974 /* Collect all the stats from the prior timer interval */
5979 for_each_present_cpu(cpu) {
5980 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
5981 total += atomic64_xchg(&cgs->total_bytes, 0);
5982 io_cnt += atomic_xchg(&cgs->rx_io_cnt, 0);
5983 lat += atomic64_xchg(&cgs->rx_latency, 0);
5984 rcv += atomic64_xchg(&cgs->rcv_bytes, 0);
5987 /* Before we issue another CMF_SYNC_WQE, retrieve the BW
5988 * returned from the last CMF_SYNC_WQE issued, from
5989 * cmf_last_sync_bw. This will be the target BW for
5990 * this next timer interval.
5992 if (phba->cmf_active_mode == LPFC_CFG_MANAGED &&
5993 phba->link_state != LPFC_LINK_DOWN &&
5994 phba->hba_flag & HBA_SETUP) {
5995 mbpi = phba->cmf_last_sync_bw;
5996 phba->cmf_last_sync_bw = 0;
5999 /* Calculate any extra bytes needed to account for the
6000 * timer accuracy. If we are less than LPFC_CMF_INTERVAL
6001 * calculate the adjustment needed for total to reflect
6002 * a full LPFC_CMF_INTERVAL.
6004 if (ms && ms < LPFC_CMF_INTERVAL) {
6005 cnt = div_u64(total, ms); /* bytes per ms */
6006 cnt *= LPFC_CMF_INTERVAL; /* what total should be */
6008 /* If the timeout is scheduled to be shorter,
6009 * this value may skew the data, so cap it at mbpi.
6011 if ((phba->hba_flag & HBA_SHORT_CMF) && cnt > mbpi)
6014 extra = cnt - total;
6016 lpfc_issue_cmf_sync_wqe(phba, LPFC_CMF_INTERVAL, total + extra);
6018 /* For Monitor mode or link down we want mbpi
6019 * to be the full link speed
6021 mbpi = phba->cmf_link_byte_count;
6024 phba->cmf_timer_cnt++;
6027 /* Update congestion info buffer latency in us */
6028 atomic_add(io_cnt, &phba->cgn_latency_evt_cnt);
6029 atomic64_add(lat, &phba->cgn_latency_evt);
6031 busy = atomic_xchg(&phba->cmf_busy, 0);
6032 max_read = atomic_xchg(&phba->rx_max_read_cnt, 0);
6034 /* Calculate MBPI for the next timer interval */
6036 if (mbpi > phba->cmf_link_byte_count ||
6037 phba->cmf_active_mode == LPFC_CFG_MONITOR)
6038 mbpi = phba->cmf_link_byte_count;
6040 /* Change max_bytes_per_interval to what the prior
6041 * CMF_SYNC_WQE cmpl indicated.
6043 if (mbpi != phba->cmf_max_bytes_per_interval)
6044 phba->cmf_max_bytes_per_interval = mbpi;
6047 /* Save rxmonitor information for debug */
6048 if (phba->rxtable) {
6049 head = atomic_xchg(&phba->rxtable_idx_head,
6050 LPFC_RXMONITOR_TABLE_IN_USE);
6051 entry = &phba->rxtable[head];
6052 entry->total_bytes = total;
6053 entry->cmf_bytes = total + extra;
6054 entry->rcv_bytes = rcv;
6055 entry->cmf_busy = busy;
6056 entry->cmf_info = phba->cmf_active_info;
6058 entry->avg_io_latency = div_u64(lat, io_cnt);
6059 entry->avg_io_size = div_u64(rcv, io_cnt);
6061 entry->avg_io_latency = 0;
6062 entry->avg_io_size = 0;
6064 entry->max_read_cnt = max_read;
6065 entry->io_cnt = io_cnt;
6066 entry->max_bytes_per_interval = mbpi;
6067 if (phba->cmf_active_mode == LPFC_CFG_MANAGED)
6068 entry->timer_utilization = phba->cmf_last_ts;
6070 entry->timer_utilization = ms;
6071 entry->timer_interval = ms;
6072 phba->cmf_last_ts = 0;
6074 /* Increment rxtable index */
6075 head = (head + 1) % LPFC_MAX_RXMONITOR_ENTRY;
6076 tail = atomic_read(&phba->rxtable_idx_tail);
6078 tail = (tail + 1) % LPFC_MAX_RXMONITOR_ENTRY;
6079 atomic_set(&phba->rxtable_idx_tail, tail);
6081 atomic_set(&phba->rxtable_idx_head, head);
6084 if (phba->cmf_active_mode == LPFC_CFG_MONITOR) {
6085 /* If Monitor mode, check if we are oversubscribed
6086 * against the full line rate.
6088 if (mbpi && total > mbpi)
6089 atomic_inc(&phba->cgn_driver_evt_cnt);
6091 phba->rx_block_cnt += div_u64(rcv, 512); /* save 512 byte block cnt */
6093 /* Each minute save Fabric and Driver congestion information */
6094 lpfc_cgn_save_evt_cnt(phba);
6096 phba->hba_flag &= ~HBA_SHORT_CMF;
6098 /* Since we need to call lpfc_cgn_save_evt_cnt every minute, on the
6099 * minute, adjust our next timer interval, if needed, to ensure a
6100 * 1 minute granularity when we get the next timer interrupt.
6102 if (time_after(jiffies + msecs_to_jiffies(LPFC_CMF_INTERVAL),
6103 phba->cgn_evt_timestamp)) {
6104 timer_interval = jiffies_to_msecs(phba->cgn_evt_timestamp -
6106 if (timer_interval <= 0)
6107 timer_interval = LPFC_CMF_INTERVAL;
6109 phba->hba_flag |= HBA_SHORT_CMF;
6111 /* If we adjust timer_interval, max_bytes_per_interval
6112 * needs to be adjusted as well.
6114 phba->cmf_link_byte_count = div_u64(phba->cmf_max_line_rate *
6115 timer_interval, 1000);
6116 if (phba->cmf_active_mode == LPFC_CFG_MONITOR)
6117 phba->cmf_max_bytes_per_interval =
6118 phba->cmf_link_byte_count;
6121 /* Since total_bytes has already been zero'ed, its okay to unblock
6122 * after max_bytes_per_interval is setup.
6124 if (atomic_xchg(&phba->cmf_bw_wait, 0))
6125 queue_work(phba->wq, &phba->unblock_request_work);
6127 /* SCSI IO is now unblocked */
6128 atomic_set(&phba->cmf_stop_io, 0);
6131 hrtimer_forward_now(timer,
6132 ktime_set(0, timer_interval * NSEC_PER_MSEC));
6133 return HRTIMER_RESTART;
6136 #define trunk_link_status(__idx)\
6137 bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
6138 ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
6139 "Link up" : "Link down") : "NA"
6140 /* Did port __idx reported an error */
6141 #define trunk_port_fault(__idx)\
6142 bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
6143 (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
6146 lpfc_update_trunk_link_status(struct lpfc_hba *phba,
6147 struct lpfc_acqe_fc_la *acqe_fc)
6149 uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
6150 uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
6152 phba->sli4_hba.link_state.speed =
6153 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
6154 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6156 phba->sli4_hba.link_state.logical_speed =
6157 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
6158 /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
6159 phba->fc_linkspeed =
6160 lpfc_async_link_speed_to_read_top(
6162 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6164 if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
6165 phba->trunk_link.link0.state =
6166 bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
6167 ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6168 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
6170 if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
6171 phba->trunk_link.link1.state =
6172 bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
6173 ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6174 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
6176 if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
6177 phba->trunk_link.link2.state =
6178 bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
6179 ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6180 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
6182 if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
6183 phba->trunk_link.link3.state =
6184 bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
6185 ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6186 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
6189 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6190 "2910 Async FC Trunking Event - Speed:%d\n"
6191 "\tLogical speed:%d "
6192 "port0: %s port1: %s port2: %s port3: %s\n",
6193 phba->sli4_hba.link_state.speed,
6194 phba->sli4_hba.link_state.logical_speed,
6195 trunk_link_status(0), trunk_link_status(1),
6196 trunk_link_status(2), trunk_link_status(3));
6198 if (phba->cmf_active_mode != LPFC_CFG_OFF)
6199 lpfc_cmf_signal_init(phba);
6202 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6203 "3202 trunk error:0x%x (%s) seen on port0:%s "
6205 * SLI-4: We have only 0xA error codes
6206 * defined as of now. print an appropriate
6207 * message in case driver needs to be updated.
6209 "port1:%s port2:%s port3:%s\n", err, err > 0xA ?
6210 "UNDEFINED. update driver." : trunk_errmsg[err],
6211 trunk_port_fault(0), trunk_port_fault(1),
6212 trunk_port_fault(2), trunk_port_fault(3));
6217 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
6218 * @phba: pointer to lpfc hba data structure.
6219 * @acqe_fc: pointer to the async fc completion queue entry.
6221 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
6222 * that the event was received and then issue a read_topology mailbox command so
6223 * that the rest of the driver will treat it the same as SLI3.
6226 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
6228 struct lpfc_dmabuf *mp;
6231 struct lpfc_mbx_read_top *la;
6234 if (bf_get(lpfc_trailer_type, acqe_fc) !=
6235 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
6236 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6237 "2895 Non FC link Event detected.(%d)\n",
6238 bf_get(lpfc_trailer_type, acqe_fc));
6242 if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
6243 LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
6244 lpfc_update_trunk_link_status(phba, acqe_fc);
6248 /* Keep the link status for extra SLI4 state machine reference */
6249 phba->sli4_hba.link_state.speed =
6250 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
6251 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6252 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
6253 phba->sli4_hba.link_state.topology =
6254 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
6255 phba->sli4_hba.link_state.status =
6256 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
6257 phba->sli4_hba.link_state.type =
6258 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
6259 phba->sli4_hba.link_state.number =
6260 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
6261 phba->sli4_hba.link_state.fault =
6262 bf_get(lpfc_acqe_link_fault, acqe_fc);
6264 if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
6265 LPFC_FC_LA_TYPE_LINK_DOWN)
6266 phba->sli4_hba.link_state.logical_speed = 0;
6267 else if (!phba->sli4_hba.conf_trunk)
6268 phba->sli4_hba.link_state.logical_speed =
6269 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
6271 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6272 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
6273 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
6274 "%dMbps Fault:%d\n",
6275 phba->sli4_hba.link_state.speed,
6276 phba->sli4_hba.link_state.topology,
6277 phba->sli4_hba.link_state.status,
6278 phba->sli4_hba.link_state.type,
6279 phba->sli4_hba.link_state.number,
6280 phba->sli4_hba.link_state.logical_speed,
6281 phba->sli4_hba.link_state.fault);
6282 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6284 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6285 "2897 The mboxq allocation failed\n");
6288 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6290 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6291 "2898 The lpfc_dmabuf allocation failed\n");
6294 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
6296 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6297 "2899 The mbuf allocation failed\n");
6298 goto out_free_dmabuf;
6301 /* Cleanup any outstanding ELS commands */
6302 lpfc_els_flush_all_cmd(phba);
6304 /* Block ELS IOCBs until we have done process link event */
6305 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
6307 /* Update link event statistics */
6308 phba->sli.slistat.link_event++;
6310 /* Create lpfc_handle_latt mailbox command from link ACQE */
6311 lpfc_read_topology(phba, pmb, mp);
6312 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
6313 pmb->vport = phba->pport;
6315 if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
6316 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
6318 switch (phba->sli4_hba.link_state.status) {
6319 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
6320 phba->link_flag |= LS_MDS_LINK_DOWN;
6322 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
6323 phba->link_flag |= LS_MDS_LOOPBACK;
6329 /* Initialize completion status */
6331 mb->mbxStatus = MBX_SUCCESS;
6333 /* Parse port fault information field */
6334 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
6336 /* Parse and translate link attention fields */
6337 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
6338 la->eventTag = acqe_fc->event_tag;
6340 if (phba->sli4_hba.link_state.status ==
6341 LPFC_FC_LA_TYPE_UNEXP_WWPN) {
6342 bf_set(lpfc_mbx_read_top_att_type, la,
6343 LPFC_FC_LA_TYPE_UNEXP_WWPN);
6345 bf_set(lpfc_mbx_read_top_att_type, la,
6346 LPFC_FC_LA_TYPE_LINK_DOWN);
6348 /* Invoke the mailbox command callback function */
6349 lpfc_mbx_cmpl_read_topology(phba, pmb);
6354 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
6355 if (rc == MBX_NOT_FINISHED) {
6356 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6357 goto out_free_dmabuf;
6364 mempool_free(pmb, phba->mbox_mem_pool);
6368 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
6369 * @phba: pointer to lpfc hba data structure.
6370 * @acqe_sli: pointer to the async SLI completion queue entry.
6372 * This routine is to handle the SLI4 asynchronous SLI events.
6375 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
6381 uint8_t operational = 0;
6382 struct temp_event temp_event_data;
6383 struct lpfc_acqe_misconfigured_event *misconfigured;
6384 struct lpfc_acqe_cgn_signal *cgn_signal;
6385 struct Scsi_Host *shost;
6386 struct lpfc_vport **vports;
6389 evt_type = bf_get(lpfc_trailer_type, acqe_sli);
6391 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6392 "2901 Async SLI event - Type:%d, Event Data: x%08x "
6393 "x%08x x%08x x%08x\n", evt_type,
6394 acqe_sli->event_data1, acqe_sli->event_data2,
6395 acqe_sli->reserved, acqe_sli->trailer);
6397 port_name = phba->Port[0];
6398 if (port_name == 0x00)
6399 port_name = '?'; /* get port name is empty */
6402 case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
6403 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6404 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
6405 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
6407 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6408 "3190 Over Temperature:%d Celsius- Port Name %c\n",
6409 acqe_sli->event_data1, port_name);
6411 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
6412 shost = lpfc_shost_from_vport(phba->pport);
6413 fc_host_post_vendor_event(shost, fc_get_event_number(),
6414 sizeof(temp_event_data),
6415 (char *)&temp_event_data,
6416 SCSI_NL_VID_TYPE_PCI
6417 | PCI_VENDOR_ID_EMULEX);
6419 case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
6420 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6421 temp_event_data.event_code = LPFC_NORMAL_TEMP;
6422 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
6424 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6425 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
6426 acqe_sli->event_data1, port_name);
6428 shost = lpfc_shost_from_vport(phba->pport);
6429 fc_host_post_vendor_event(shost, fc_get_event_number(),
6430 sizeof(temp_event_data),
6431 (char *)&temp_event_data,
6432 SCSI_NL_VID_TYPE_PCI
6433 | PCI_VENDOR_ID_EMULEX);
6435 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
6436 misconfigured = (struct lpfc_acqe_misconfigured_event *)
6437 &acqe_sli->event_data1;
6439 /* fetch the status for this port */
6440 switch (phba->sli4_hba.lnk_info.lnk_no) {
6441 case LPFC_LINK_NUMBER_0:
6442 status = bf_get(lpfc_sli_misconfigured_port0_state,
6443 &misconfigured->theEvent);
6444 operational = bf_get(lpfc_sli_misconfigured_port0_op,
6445 &misconfigured->theEvent);
6447 case LPFC_LINK_NUMBER_1:
6448 status = bf_get(lpfc_sli_misconfigured_port1_state,
6449 &misconfigured->theEvent);
6450 operational = bf_get(lpfc_sli_misconfigured_port1_op,
6451 &misconfigured->theEvent);
6453 case LPFC_LINK_NUMBER_2:
6454 status = bf_get(lpfc_sli_misconfigured_port2_state,
6455 &misconfigured->theEvent);
6456 operational = bf_get(lpfc_sli_misconfigured_port2_op,
6457 &misconfigured->theEvent);
6459 case LPFC_LINK_NUMBER_3:
6460 status = bf_get(lpfc_sli_misconfigured_port3_state,
6461 &misconfigured->theEvent);
6462 operational = bf_get(lpfc_sli_misconfigured_port3_op,
6463 &misconfigured->theEvent);
6466 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6468 "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
6469 "event: Invalid link %d",
6470 phba->sli4_hba.lnk_info.lnk_no);
6474 /* Skip if optic state unchanged */
6475 if (phba->sli4_hba.lnk_info.optic_state == status)
6479 case LPFC_SLI_EVENT_STATUS_VALID:
6480 sprintf(message, "Physical Link is functional");
6482 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
6483 sprintf(message, "Optics faulted/incorrectly "
6484 "installed/not installed - Reseat optics, "
6485 "if issue not resolved, replace.");
6487 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
6489 "Optics of two types installed - Remove one "
6490 "optic or install matching pair of optics.");
6492 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
6493 sprintf(message, "Incompatible optics - Replace with "
6494 "compatible optics for card to function.");
6496 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
6497 sprintf(message, "Unqualified optics - Replace with "
6498 "Avago optics for Warranty and Technical "
6499 "Support - Link is%s operational",
6500 (operational) ? " not" : "");
6502 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
6503 sprintf(message, "Uncertified optics - Replace with "
6504 "Avago-certified optics to enable link "
6505 "operation - Link is%s operational",
6506 (operational) ? " not" : "");
6509 /* firmware is reporting a status we don't know about */
6510 sprintf(message, "Unknown event status x%02x", status);
6514 /* Issue READ_CONFIG mbox command to refresh supported speeds */
6515 rc = lpfc_sli4_read_config(phba);
6518 lpfc_printf_log(phba, KERN_ERR,
6520 "3194 Unable to retrieve supported "
6521 "speeds, rc = 0x%x\n", rc);
6523 rc = lpfc_sli4_refresh_params(phba);
6525 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6526 "3174 Unable to update pls support, "
6529 vports = lpfc_create_vport_work_array(phba);
6530 if (vports != NULL) {
6531 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
6533 shost = lpfc_shost_from_vport(vports[i]);
6534 lpfc_host_supported_speeds_set(shost);
6537 lpfc_destroy_vport_work_array(phba, vports);
6539 phba->sli4_hba.lnk_info.optic_state = status;
6540 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6541 "3176 Port Name %c %s\n", port_name, message);
6543 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
6544 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6545 "3192 Remote DPort Test Initiated - "
6546 "Event Data1:x%08x Event Data2: x%08x\n",
6547 acqe_sli->event_data1, acqe_sli->event_data2);
6549 case LPFC_SLI_EVENT_TYPE_PORT_PARAMS_CHG:
6550 /* Call FW to obtain active parms */
6551 lpfc_sli4_cgn_parm_chg_evt(phba);
6553 case LPFC_SLI_EVENT_TYPE_MISCONF_FAWWN:
6554 /* Misconfigured WWN. Reports that the SLI Port is configured
6555 * to use FA-WWN, but the attached device doesn’t support it.
6556 * No driver action is required.
6557 * Event Data1 - N.A, Event Data2 - N.A
6559 lpfc_log_msg(phba, KERN_WARNING, LOG_SLI,
6560 "2699 Misconfigured FA-WWN - Attached device does "
6561 "not support FA-WWN\n");
6563 case LPFC_SLI_EVENT_TYPE_EEPROM_FAILURE:
6564 /* EEPROM failure. No driver action is required */
6565 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6566 "2518 EEPROM failure - "
6567 "Event Data1: x%08x Event Data2: x%08x\n",
6568 acqe_sli->event_data1, acqe_sli->event_data2);
6570 case LPFC_SLI_EVENT_TYPE_CGN_SIGNAL:
6571 if (phba->cmf_active_mode == LPFC_CFG_OFF)
6573 cgn_signal = (struct lpfc_acqe_cgn_signal *)
6574 &acqe_sli->event_data1;
6575 phba->cgn_acqe_cnt++;
6577 cnt = bf_get(lpfc_warn_acqe, cgn_signal);
6578 atomic64_add(cnt, &phba->cgn_acqe_stat.warn);
6579 atomic64_add(cgn_signal->alarm_cnt, &phba->cgn_acqe_stat.alarm);
6581 /* no threshold for CMF, even 1 signal will trigger an event */
6583 /* Alarm overrides warning, so check that first */
6584 if (cgn_signal->alarm_cnt) {
6585 if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
6586 /* Keep track of alarm cnt for cgn_info */
6587 atomic_add(cgn_signal->alarm_cnt,
6588 &phba->cgn_fabric_alarm_cnt);
6589 /* Keep track of alarm cnt for CMF_SYNC_WQE */
6590 atomic_add(cgn_signal->alarm_cnt,
6591 &phba->cgn_sync_alarm_cnt);
6594 /* signal action needs to be taken */
6595 if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
6596 phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
6597 /* Keep track of warning cnt for cgn_info */
6598 atomic_add(cnt, &phba->cgn_fabric_warn_cnt);
6599 /* Keep track of warning cnt for CMF_SYNC_WQE */
6600 atomic_add(cnt, &phba->cgn_sync_warn_cnt);
6605 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6606 "3193 Unrecognized SLI event, type: 0x%x",
6613 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
6614 * @vport: pointer to vport data structure.
6616 * This routine is to perform Clear Virtual Link (CVL) on a vport in
6617 * response to a CVL event.
6619 * Return the pointer to the ndlp with the vport if successful, otherwise
6622 static struct lpfc_nodelist *
6623 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
6625 struct lpfc_nodelist *ndlp;
6626 struct Scsi_Host *shost;
6627 struct lpfc_hba *phba;
6634 ndlp = lpfc_findnode_did(vport, Fabric_DID);
6636 /* Cannot find existing Fabric ndlp, so allocate a new one */
6637 ndlp = lpfc_nlp_init(vport, Fabric_DID);
6640 /* Set the node type */
6641 ndlp->nlp_type |= NLP_FABRIC;
6642 /* Put ndlp onto node list */
6643 lpfc_enqueue_node(vport, ndlp);
6645 if ((phba->pport->port_state < LPFC_FLOGI) &&
6646 (phba->pport->port_state != LPFC_VPORT_FAILED))
6648 /* If virtual link is not yet instantiated ignore CVL */
6649 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
6650 && (vport->port_state != LPFC_VPORT_FAILED))
6652 shost = lpfc_shost_from_vport(vport);
6655 lpfc_linkdown_port(vport);
6656 lpfc_cleanup_pending_mbox(vport);
6657 spin_lock_irq(shost->host_lock);
6658 vport->fc_flag |= FC_VPORT_CVL_RCVD;
6659 spin_unlock_irq(shost->host_lock);
6665 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
6666 * @phba: pointer to lpfc hba data structure.
6668 * This routine is to perform Clear Virtual Link (CVL) on all vports in
6669 * response to a FCF dead event.
6672 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
6674 struct lpfc_vport **vports;
6677 vports = lpfc_create_vport_work_array(phba);
6679 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
6680 lpfc_sli4_perform_vport_cvl(vports[i]);
6681 lpfc_destroy_vport_work_array(phba, vports);
6685 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
6686 * @phba: pointer to lpfc hba data structure.
6687 * @acqe_fip: pointer to the async fcoe completion queue entry.
6689 * This routine is to handle the SLI4 asynchronous fcoe event.
6692 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
6693 struct lpfc_acqe_fip *acqe_fip)
6695 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
6697 struct lpfc_vport *vport;
6698 struct lpfc_nodelist *ndlp;
6699 int active_vlink_present;
6700 struct lpfc_vport **vports;
6703 phba->fc_eventTag = acqe_fip->event_tag;
6704 phba->fcoe_eventtag = acqe_fip->event_tag;
6705 switch (event_type) {
6706 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
6707 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
6708 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
6709 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6710 "2546 New FCF event, evt_tag:x%x, "
6712 acqe_fip->event_tag,
6715 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
6717 "2788 FCF param modified event, "
6718 "evt_tag:x%x, index:x%x\n",
6719 acqe_fip->event_tag,
6721 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
6723 * During period of FCF discovery, read the FCF
6724 * table record indexed by the event to update
6725 * FCF roundrobin failover eligible FCF bmask.
6727 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
6729 "2779 Read FCF (x%x) for updating "
6730 "roundrobin FCF failover bmask\n",
6732 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
6735 /* If the FCF discovery is in progress, do nothing. */
6736 spin_lock_irq(&phba->hbalock);
6737 if (phba->hba_flag & FCF_TS_INPROG) {
6738 spin_unlock_irq(&phba->hbalock);
6741 /* If fast FCF failover rescan event is pending, do nothing */
6742 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
6743 spin_unlock_irq(&phba->hbalock);
6747 /* If the FCF has been in discovered state, do nothing. */
6748 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
6749 spin_unlock_irq(&phba->hbalock);
6752 spin_unlock_irq(&phba->hbalock);
6754 /* Otherwise, scan the entire FCF table and re-discover SAN */
6755 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6756 "2770 Start FCF table scan per async FCF "
6757 "event, evt_tag:x%x, index:x%x\n",
6758 acqe_fip->event_tag, acqe_fip->index);
6759 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
6760 LPFC_FCOE_FCF_GET_FIRST);
6762 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6763 "2547 Issue FCF scan read FCF mailbox "
6764 "command failed (x%x)\n", rc);
6767 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
6768 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6769 "2548 FCF Table full count 0x%x tag 0x%x\n",
6770 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
6771 acqe_fip->event_tag);
6774 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
6775 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
6776 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6777 "2549 FCF (x%x) disconnected from network, "
6778 "tag:x%x\n", acqe_fip->index,
6779 acqe_fip->event_tag);
6781 * If we are in the middle of FCF failover process, clear
6782 * the corresponding FCF bit in the roundrobin bitmap.
6784 spin_lock_irq(&phba->hbalock);
6785 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
6786 (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
6787 spin_unlock_irq(&phba->hbalock);
6788 /* Update FLOGI FCF failover eligible FCF bmask */
6789 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
6792 spin_unlock_irq(&phba->hbalock);
6794 /* If the event is not for currently used fcf do nothing */
6795 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
6799 * Otherwise, request the port to rediscover the entire FCF
6800 * table for a fast recovery from case that the current FCF
6801 * is no longer valid as we are not in the middle of FCF
6802 * failover process already.
6804 spin_lock_irq(&phba->hbalock);
6805 /* Mark the fast failover process in progress */
6806 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
6807 spin_unlock_irq(&phba->hbalock);
6809 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6810 "2771 Start FCF fast failover process due to "
6811 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
6812 "\n", acqe_fip->event_tag, acqe_fip->index);
6813 rc = lpfc_sli4_redisc_fcf_table(phba);
6815 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
6817 "2772 Issue FCF rediscover mailbox "
6818 "command failed, fail through to FCF "
6820 spin_lock_irq(&phba->hbalock);
6821 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
6822 spin_unlock_irq(&phba->hbalock);
6824 * Last resort will fail over by treating this
6825 * as a link down to FCF registration.
6827 lpfc_sli4_fcf_dead_failthrough(phba);
6829 /* Reset FCF roundrobin bmask for new discovery */
6830 lpfc_sli4_clear_fcf_rr_bmask(phba);
6832 * Handling fast FCF failover to a DEAD FCF event is
6833 * considered equalivant to receiving CVL to all vports.
6835 lpfc_sli4_perform_all_vport_cvl(phba);
6838 case LPFC_FIP_EVENT_TYPE_CVL:
6839 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
6840 lpfc_printf_log(phba, KERN_ERR,
6842 "2718 Clear Virtual Link Received for VPI 0x%x"
6843 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
6845 vport = lpfc_find_vport_by_vpid(phba,
6847 ndlp = lpfc_sli4_perform_vport_cvl(vport);
6850 active_vlink_present = 0;
6852 vports = lpfc_create_vport_work_array(phba);
6854 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
6856 if ((!(vports[i]->fc_flag &
6857 FC_VPORT_CVL_RCVD)) &&
6858 (vports[i]->port_state > LPFC_FDISC)) {
6859 active_vlink_present = 1;
6863 lpfc_destroy_vport_work_array(phba, vports);
6867 * Don't re-instantiate if vport is marked for deletion.
6868 * If we are here first then vport_delete is going to wait
6869 * for discovery to complete.
6871 if (!(vport->load_flag & FC_UNLOADING) &&
6872 active_vlink_present) {
6874 * If there are other active VLinks present,
6875 * re-instantiate the Vlink using FDISC.
6877 mod_timer(&ndlp->nlp_delayfunc,
6878 jiffies + msecs_to_jiffies(1000));
6879 spin_lock_irq(&ndlp->lock);
6880 ndlp->nlp_flag |= NLP_DELAY_TMO;
6881 spin_unlock_irq(&ndlp->lock);
6882 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
6883 vport->port_state = LPFC_FDISC;
6886 * Otherwise, we request port to rediscover
6887 * the entire FCF table for a fast recovery
6888 * from possible case that the current FCF
6889 * is no longer valid if we are not already
6890 * in the FCF failover process.
6892 spin_lock_irq(&phba->hbalock);
6893 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
6894 spin_unlock_irq(&phba->hbalock);
6897 /* Mark the fast failover process in progress */
6898 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
6899 spin_unlock_irq(&phba->hbalock);
6900 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
6902 "2773 Start FCF failover per CVL, "
6903 "evt_tag:x%x\n", acqe_fip->event_tag);
6904 rc = lpfc_sli4_redisc_fcf_table(phba);
6906 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
6908 "2774 Issue FCF rediscover "
6909 "mailbox command failed, "
6910 "through to CVL event\n");
6911 spin_lock_irq(&phba->hbalock);
6912 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
6913 spin_unlock_irq(&phba->hbalock);
6915 * Last resort will be re-try on the
6916 * the current registered FCF entry.
6918 lpfc_retry_pport_discovery(phba);
6921 * Reset FCF roundrobin bmask for new
6924 lpfc_sli4_clear_fcf_rr_bmask(phba);
6928 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6929 "0288 Unknown FCoE event type 0x%x event tag "
6930 "0x%x\n", event_type, acqe_fip->event_tag);
6936 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
6937 * @phba: pointer to lpfc hba data structure.
6938 * @acqe_dcbx: pointer to the async dcbx completion queue entry.
6940 * This routine is to handle the SLI4 asynchronous dcbx event.
6943 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
6944 struct lpfc_acqe_dcbx *acqe_dcbx)
6946 phba->fc_eventTag = acqe_dcbx->event_tag;
6947 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6948 "0290 The SLI4 DCBX asynchronous event is not "
6953 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
6954 * @phba: pointer to lpfc hba data structure.
6955 * @acqe_grp5: pointer to the async grp5 completion queue entry.
6957 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
6958 * is an asynchronous notified of a logical link speed change. The Port
6959 * reports the logical link speed in units of 10Mbps.
6962 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
6963 struct lpfc_acqe_grp5 *acqe_grp5)
6965 uint16_t prev_ll_spd;
6967 phba->fc_eventTag = acqe_grp5->event_tag;
6968 phba->fcoe_eventtag = acqe_grp5->event_tag;
6969 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
6970 phba->sli4_hba.link_state.logical_speed =
6971 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
6972 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6973 "2789 GRP5 Async Event: Updating logical link speed "
6974 "from %dMbps to %dMbps\n", prev_ll_spd,
6975 phba->sli4_hba.link_state.logical_speed);
6979 * lpfc_sli4_async_cmstat_evt - Process the asynchronous cmstat event
6980 * @phba: pointer to lpfc hba data structure.
6982 * This routine is to handle the SLI4 asynchronous cmstat event. A cmstat event
6983 * is an asynchronous notification of a request to reset CM stats.
6986 lpfc_sli4_async_cmstat_evt(struct lpfc_hba *phba)
6990 lpfc_init_congestion_stat(phba);
6994 * lpfc_cgn_params_val - Validate FW congestion parameters.
6995 * @phba: pointer to lpfc hba data structure.
6996 * @p_cfg_param: pointer to FW provided congestion parameters.
6998 * This routine validates the congestion parameters passed
6999 * by the FW to the driver via an ACQE event.
7002 lpfc_cgn_params_val(struct lpfc_hba *phba, struct lpfc_cgn_param *p_cfg_param)
7004 spin_lock_irq(&phba->hbalock);
7006 if (!lpfc_rangecheck(p_cfg_param->cgn_param_mode, LPFC_CFG_OFF,
7007 LPFC_CFG_MONITOR)) {
7008 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT,
7009 "6225 CMF mode param out of range: %d\n",
7010 p_cfg_param->cgn_param_mode);
7011 p_cfg_param->cgn_param_mode = LPFC_CFG_OFF;
7014 spin_unlock_irq(&phba->hbalock);
7018 * lpfc_cgn_params_parse - Process a FW cong parm change event
7019 * @phba: pointer to lpfc hba data structure.
7020 * @p_cgn_param: pointer to a data buffer with the FW cong params.
7021 * @len: the size of pdata in bytes.
7023 * This routine validates the congestion management buffer signature
7024 * from the FW, validates the contents and makes corrections for
7025 * valid, in-range values. If the signature magic is correct and
7026 * after parameter validation, the contents are copied to the driver's
7027 * @phba structure. If the magic is incorrect, an error message is
7031 lpfc_cgn_params_parse(struct lpfc_hba *phba,
7032 struct lpfc_cgn_param *p_cgn_param, uint32_t len)
7034 struct lpfc_cgn_info *cp;
7035 uint32_t crc, oldmode;
7037 /* Make sure the FW has encoded the correct magic number to
7038 * validate the congestion parameter in FW memory.
7040 if (p_cgn_param->cgn_param_magic == LPFC_CFG_PARAM_MAGIC_NUM) {
7041 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
7042 "4668 FW cgn parm buffer data: "
7043 "magic 0x%x version %d mode %d "
7044 "level0 %d level1 %d "
7045 "level2 %d byte13 %d "
7046 "byte14 %d byte15 %d "
7047 "byte11 %d byte12 %d activeMode %d\n",
7048 p_cgn_param->cgn_param_magic,
7049 p_cgn_param->cgn_param_version,
7050 p_cgn_param->cgn_param_mode,
7051 p_cgn_param->cgn_param_level0,
7052 p_cgn_param->cgn_param_level1,
7053 p_cgn_param->cgn_param_level2,
7054 p_cgn_param->byte13,
7055 p_cgn_param->byte14,
7056 p_cgn_param->byte15,
7057 p_cgn_param->byte11,
7058 p_cgn_param->byte12,
7059 phba->cmf_active_mode);
7061 oldmode = phba->cmf_active_mode;
7063 /* Any parameters out of range are corrected to defaults
7064 * by this routine. No need to fail.
7066 lpfc_cgn_params_val(phba, p_cgn_param);
7068 /* Parameters are verified, move them into driver storage */
7069 spin_lock_irq(&phba->hbalock);
7070 memcpy(&phba->cgn_p, p_cgn_param,
7071 sizeof(struct lpfc_cgn_param));
7073 /* Update parameters in congestion info buffer now */
7075 cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
7076 cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
7077 cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
7078 cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
7079 cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
7080 crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
7081 LPFC_CGN_CRC32_SEED);
7082 cp->cgn_info_crc = cpu_to_le32(crc);
7084 spin_unlock_irq(&phba->hbalock);
7086 phba->cmf_active_mode = phba->cgn_p.cgn_param_mode;
7090 if (phba->cgn_p.cgn_param_mode != LPFC_CFG_OFF) {
7091 /* Turning CMF on */
7092 lpfc_cmf_start(phba);
7094 if (phba->link_state >= LPFC_LINK_UP) {
7095 phba->cgn_reg_fpin =
7096 phba->cgn_init_reg_fpin;
7097 phba->cgn_reg_signal =
7098 phba->cgn_init_reg_signal;
7099 lpfc_issue_els_edc(phba->pport, 0);
7103 case LPFC_CFG_MANAGED:
7104 switch (phba->cgn_p.cgn_param_mode) {
7106 /* Turning CMF off */
7107 lpfc_cmf_stop(phba);
7108 if (phba->link_state >= LPFC_LINK_UP)
7109 lpfc_issue_els_edc(phba->pport, 0);
7111 case LPFC_CFG_MONITOR:
7112 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
7113 "4661 Switch from MANAGED to "
7115 phba->cmf_max_bytes_per_interval =
7116 phba->cmf_link_byte_count;
7118 /* Resume blocked IO - unblock on workqueue */
7119 queue_work(phba->wq,
7120 &phba->unblock_request_work);
7124 case LPFC_CFG_MONITOR:
7125 switch (phba->cgn_p.cgn_param_mode) {
7127 /* Turning CMF off */
7128 lpfc_cmf_stop(phba);
7129 if (phba->link_state >= LPFC_LINK_UP)
7130 lpfc_issue_els_edc(phba->pport, 0);
7132 case LPFC_CFG_MANAGED:
7133 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
7134 "4662 Switch from MONITOR to "
7136 lpfc_cmf_signal_init(phba);
7142 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7143 "4669 FW cgn parm buf wrong magic 0x%x "
7144 "version %d\n", p_cgn_param->cgn_param_magic,
7145 p_cgn_param->cgn_param_version);
7150 * lpfc_sli4_cgn_params_read - Read and Validate FW congestion parameters.
7151 * @phba: pointer to lpfc hba data structure.
7153 * This routine issues a read_object mailbox command to
7154 * get the congestion management parameters from the FW
7155 * parses it and updates the driver maintained values.
7158 * 0 if the object was empty
7159 * -Eval if an error was encountered
7160 * Count if bytes were read from object
7163 lpfc_sli4_cgn_params_read(struct lpfc_hba *phba)
7166 struct lpfc_cgn_param *p_cgn_param = NULL;
7170 /* Find out if the FW has a new set of congestion parameters. */
7171 len = sizeof(struct lpfc_cgn_param);
7172 pdata = kzalloc(len, GFP_KERNEL);
7173 ret = lpfc_read_object(phba, (char *)LPFC_PORT_CFG_NAME,
7176 /* 0 means no data. A negative means error. A positive means
7177 * bytes were copied.
7180 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7181 "4670 CGN RD OBJ returns no data\n");
7183 } else if (ret < 0) {
7184 /* Some error. Just exit and return it to the caller.*/
7188 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
7189 "6234 READ CGN PARAMS Successful %d\n", len);
7191 /* Parse data pointer over len and update the phba congestion
7192 * parameters with values passed back. The receive rate values
7193 * may have been altered in FW, but take no action here.
7195 p_cgn_param = (struct lpfc_cgn_param *)pdata;
7196 lpfc_cgn_params_parse(phba, p_cgn_param, len);
7204 * lpfc_sli4_cgn_parm_chg_evt - Process a FW congestion param change event
7205 * @phba: pointer to lpfc hba data structure.
7207 * The FW generated Async ACQE SLI event calls this routine when
7208 * the event type is an SLI Internal Port Event and the Event Code
7209 * indicates a change to the FW maintained congestion parameters.
7211 * This routine executes a Read_Object mailbox call to obtain the
7212 * current congestion parameters maintained in FW and corrects
7213 * the driver's active congestion parameters.
7215 * The acqe event is not passed because there is no further data
7218 * Returns nonzero error if event processing encountered an error.
7219 * Zero otherwise for success.
7222 lpfc_sli4_cgn_parm_chg_evt(struct lpfc_hba *phba)
7226 if (!phba->sli4_hba.pc_sli4_params.cmf) {
7227 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7228 "4664 Cgn Evt when E2E off. Drop event\n");
7232 /* If the event is claiming an empty object, it's ok. A write
7233 * could have cleared it. Only error is a negative return
7236 ret = lpfc_sli4_cgn_params_read(phba);
7238 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7239 "4667 Error reading Cgn Params (%d)\n",
7242 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7243 "4673 CGN Event empty object.\n");
7249 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
7250 * @phba: pointer to lpfc hba data structure.
7252 * This routine is invoked by the worker thread to process all the pending
7253 * SLI4 asynchronous events.
7255 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
7257 struct lpfc_cq_event *cq_event;
7258 unsigned long iflags;
7260 /* First, declare the async event has been handled */
7261 spin_lock_irqsave(&phba->hbalock, iflags);
7262 phba->hba_flag &= ~ASYNC_EVENT;
7263 spin_unlock_irqrestore(&phba->hbalock, iflags);
7265 /* Now, handle all the async events */
7266 spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
7267 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
7268 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
7269 cq_event, struct lpfc_cq_event, list);
7270 spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock,
7273 /* Process the asynchronous event */
7274 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
7275 case LPFC_TRAILER_CODE_LINK:
7276 lpfc_sli4_async_link_evt(phba,
7277 &cq_event->cqe.acqe_link);
7279 case LPFC_TRAILER_CODE_FCOE:
7280 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
7282 case LPFC_TRAILER_CODE_DCBX:
7283 lpfc_sli4_async_dcbx_evt(phba,
7284 &cq_event->cqe.acqe_dcbx);
7286 case LPFC_TRAILER_CODE_GRP5:
7287 lpfc_sli4_async_grp5_evt(phba,
7288 &cq_event->cqe.acqe_grp5);
7290 case LPFC_TRAILER_CODE_FC:
7291 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
7293 case LPFC_TRAILER_CODE_SLI:
7294 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
7296 case LPFC_TRAILER_CODE_CMSTAT:
7297 lpfc_sli4_async_cmstat_evt(phba);
7300 lpfc_printf_log(phba, KERN_ERR,
7302 "1804 Invalid asynchronous event code: "
7303 "x%x\n", bf_get(lpfc_trailer_code,
7304 &cq_event->cqe.mcqe_cmpl));
7308 /* Free the completion event processed to the free pool */
7309 lpfc_sli4_cq_event_release(phba, cq_event);
7310 spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
7312 spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
7316 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
7317 * @phba: pointer to lpfc hba data structure.
7319 * This routine is invoked by the worker thread to process FCF table
7320 * rediscovery pending completion event.
7322 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
7326 spin_lock_irq(&phba->hbalock);
7327 /* Clear FCF rediscovery timeout event */
7328 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
7329 /* Clear driver fast failover FCF record flag */
7330 phba->fcf.failover_rec.flag = 0;
7331 /* Set state for FCF fast failover */
7332 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
7333 spin_unlock_irq(&phba->hbalock);
7335 /* Scan FCF table from the first entry to re-discover SAN */
7336 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
7337 "2777 Start post-quiescent FCF table scan\n");
7338 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
7340 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7341 "2747 Issue FCF scan read FCF mailbox "
7342 "command failed 0x%x\n", rc);
7346 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
7347 * @phba: pointer to lpfc hba data structure.
7348 * @dev_grp: The HBA PCI-Device group number.
7350 * This routine is invoked to set up the per HBA PCI-Device group function
7351 * API jump table entries.
7353 * Return: 0 if success, otherwise -ENODEV
7356 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7360 /* Set up lpfc PCI-device group */
7361 phba->pci_dev_grp = dev_grp;
7363 /* The LPFC_PCI_DEV_OC uses SLI4 */
7364 if (dev_grp == LPFC_PCI_DEV_OC)
7365 phba->sli_rev = LPFC_SLI_REV4;
7367 /* Set up device INIT API function jump table */
7368 rc = lpfc_init_api_table_setup(phba, dev_grp);
7371 /* Set up SCSI API function jump table */
7372 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
7375 /* Set up SLI API function jump table */
7376 rc = lpfc_sli_api_table_setup(phba, dev_grp);
7379 /* Set up MBOX API function jump table */
7380 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
7388 * lpfc_log_intr_mode - Log the active interrupt mode
7389 * @phba: pointer to lpfc hba data structure.
7390 * @intr_mode: active interrupt mode adopted.
7392 * This routine it invoked to log the currently used active interrupt mode
7395 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
7397 switch (intr_mode) {
7399 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7400 "0470 Enable INTx interrupt mode.\n");
7403 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7404 "0481 Enabled MSI interrupt mode.\n");
7407 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7408 "0480 Enabled MSI-X interrupt mode.\n");
7411 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7412 "0482 Illegal interrupt mode.\n");
7419 * lpfc_enable_pci_dev - Enable a generic PCI device.
7420 * @phba: pointer to lpfc hba data structure.
7422 * This routine is invoked to enable the PCI device that is common to all
7427 * other values - error
7430 lpfc_enable_pci_dev(struct lpfc_hba *phba)
7432 struct pci_dev *pdev;
7434 /* Obtain PCI device reference */
7438 pdev = phba->pcidev;
7439 /* Enable PCI device */
7440 if (pci_enable_device_mem(pdev))
7442 /* Request PCI resource for the device */
7443 if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
7444 goto out_disable_device;
7445 /* Set up device as PCI master and save state for EEH */
7446 pci_set_master(pdev);
7447 pci_try_set_mwi(pdev);
7448 pci_save_state(pdev);
7450 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
7451 if (pci_is_pcie(pdev))
7452 pdev->needs_freset = 1;
7457 pci_disable_device(pdev);
7459 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7460 "1401 Failed to enable pci device\n");
7465 * lpfc_disable_pci_dev - Disable a generic PCI device.
7466 * @phba: pointer to lpfc hba data structure.
7468 * This routine is invoked to disable the PCI device that is common to all
7472 lpfc_disable_pci_dev(struct lpfc_hba *phba)
7474 struct pci_dev *pdev;
7476 /* Obtain PCI device reference */
7480 pdev = phba->pcidev;
7481 /* Release PCI resource and disable PCI device */
7482 pci_release_mem_regions(pdev);
7483 pci_disable_device(pdev);
7489 * lpfc_reset_hba - Reset a hba
7490 * @phba: pointer to lpfc hba data structure.
7492 * This routine is invoked to reset a hba device. It brings the HBA
7493 * offline, performs a board restart, and then brings the board back
7494 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
7495 * on outstanding mailbox commands.
7498 lpfc_reset_hba(struct lpfc_hba *phba)
7500 /* If resets are disabled then set error state and return. */
7501 if (!phba->cfg_enable_hba_reset) {
7502 phba->link_state = LPFC_HBA_ERROR;
7506 /* If not LPFC_SLI_ACTIVE, force all IO to be flushed */
7507 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) {
7508 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
7510 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
7511 lpfc_sli_flush_io_rings(phba);
7514 lpfc_sli_brdrestart(phba);
7516 lpfc_unblock_mgmt_io(phba);
7520 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
7521 * @phba: pointer to lpfc hba data structure.
7523 * This function enables the PCI SR-IOV virtual functions to a physical
7524 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
7525 * enable the number of virtual functions to the physical function. As
7526 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
7527 * API call does not considered as an error condition for most of the device.
7530 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
7532 struct pci_dev *pdev = phba->pcidev;
7536 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
7540 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
7545 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
7546 * @phba: pointer to lpfc hba data structure.
7547 * @nr_vfn: number of virtual functions to be enabled.
7549 * This function enables the PCI SR-IOV virtual functions to a physical
7550 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
7551 * enable the number of virtual functions to the physical function. As
7552 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
7553 * API call does not considered as an error condition for most of the device.
7556 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
7558 struct pci_dev *pdev = phba->pcidev;
7559 uint16_t max_nr_vfn;
7562 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
7563 if (nr_vfn > max_nr_vfn) {
7564 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7565 "3057 Requested vfs (%d) greater than "
7566 "supported vfs (%d)", nr_vfn, max_nr_vfn);
7570 rc = pci_enable_sriov(pdev, nr_vfn);
7572 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7573 "2806 Failed to enable sriov on this device "
7574 "with vfn number nr_vf:%d, rc:%d\n",
7577 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7578 "2807 Successful enable sriov on this device "
7579 "with vfn number nr_vf:%d\n", nr_vfn);
7584 lpfc_unblock_requests_work(struct work_struct *work)
7586 struct lpfc_hba *phba = container_of(work, struct lpfc_hba,
7587 unblock_request_work);
7589 lpfc_unblock_requests(phba);
7593 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
7594 * @phba: pointer to lpfc hba data structure.
7596 * This routine is invoked to set up the driver internal resources before the
7597 * device specific resource setup to support the HBA device it attached to.
7601 * other values - error
7604 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
7606 struct lpfc_sli *psli = &phba->sli;
7609 * Driver resources common to all SLI revisions
7611 atomic_set(&phba->fast_event_count, 0);
7612 atomic_set(&phba->dbg_log_idx, 0);
7613 atomic_set(&phba->dbg_log_cnt, 0);
7614 atomic_set(&phba->dbg_log_dmping, 0);
7615 spin_lock_init(&phba->hbalock);
7617 /* Initialize port_list spinlock */
7618 spin_lock_init(&phba->port_list_lock);
7619 INIT_LIST_HEAD(&phba->port_list);
7621 INIT_LIST_HEAD(&phba->work_list);
7622 init_waitqueue_head(&phba->wait_4_mlo_m_q);
7624 /* Initialize the wait queue head for the kernel thread */
7625 init_waitqueue_head(&phba->work_waitq);
7627 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7628 "1403 Protocols supported %s %s %s\n",
7629 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
7631 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
7633 (phba->nvmet_support ? "NVMET" : " "));
7635 /* Initialize the IO buffer list used by driver for SLI3 SCSI */
7636 spin_lock_init(&phba->scsi_buf_list_get_lock);
7637 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
7638 spin_lock_init(&phba->scsi_buf_list_put_lock);
7639 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
7641 /* Initialize the fabric iocb list */
7642 INIT_LIST_HEAD(&phba->fabric_iocb_list);
7644 /* Initialize list to save ELS buffers */
7645 INIT_LIST_HEAD(&phba->elsbuf);
7647 /* Initialize FCF connection rec list */
7648 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
7650 /* Initialize OAS configuration list */
7651 spin_lock_init(&phba->devicelock);
7652 INIT_LIST_HEAD(&phba->luns);
7654 /* MBOX heartbeat timer */
7655 timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
7656 /* Fabric block timer */
7657 timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
7658 /* EA polling mode timer */
7659 timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
7660 /* Heartbeat timer */
7661 timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
7663 INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
7665 INIT_DELAYED_WORK(&phba->idle_stat_delay_work,
7666 lpfc_idle_stat_delay_work);
7667 INIT_WORK(&phba->unblock_request_work, lpfc_unblock_requests_work);
7672 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
7673 * @phba: pointer to lpfc hba data structure.
7675 * This routine is invoked to set up the driver internal resources specific to
7676 * support the SLI-3 HBA device it attached to.
7680 * other values - error
7683 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
7688 * Initialize timers used by driver
7691 /* FCP polling mode timer */
7692 timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
7694 /* Host attention work mask setup */
7695 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
7696 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
7698 /* Get all the module params for configuring this host */
7699 lpfc_get_cfgparam(phba);
7700 /* Set up phase-1 common device driver resources */
7702 rc = lpfc_setup_driver_resource_phase1(phba);
7706 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
7707 phba->menlo_flag |= HBA_MENLO_SUPPORT;
7708 /* check for menlo minimum sg count */
7709 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
7710 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
7713 if (!phba->sli.sli3_ring)
7714 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
7715 sizeof(struct lpfc_sli_ring),
7717 if (!phba->sli.sli3_ring)
7721 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
7722 * used to create the sg_dma_buf_pool must be dynamically calculated.
7725 if (phba->sli_rev == LPFC_SLI_REV4)
7726 entry_sz = sizeof(struct sli4_sge);
7728 entry_sz = sizeof(struct ulp_bde64);
7730 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
7731 if (phba->cfg_enable_bg) {
7733 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
7734 * the FCP rsp, and a BDE for each. Sice we have no control
7735 * over how many protection data segments the SCSI Layer
7736 * will hand us (ie: there could be one for every block
7737 * in the IO), we just allocate enough BDEs to accomidate
7738 * our max amount and we need to limit lpfc_sg_seg_cnt to
7739 * minimize the risk of running out.
7741 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
7742 sizeof(struct fcp_rsp) +
7743 (LPFC_MAX_SG_SEG_CNT * entry_sz);
7745 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
7746 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
7748 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
7749 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
7752 * The scsi_buf for a regular I/O will hold the FCP cmnd,
7753 * the FCP rsp, a BDE for each, and a BDE for up to
7754 * cfg_sg_seg_cnt data segments.
7756 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
7757 sizeof(struct fcp_rsp) +
7758 ((phba->cfg_sg_seg_cnt + 2) * entry_sz);
7760 /* Total BDEs in BPL for scsi_sg_list */
7761 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
7764 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
7765 "9088 INIT sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
7766 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
7767 phba->cfg_total_seg_cnt);
7769 phba->max_vpi = LPFC_MAX_VPI;
7770 /* This will be set to correct value after config_port mbox */
7771 phba->max_vports = 0;
7774 * Initialize the SLI Layer to run with lpfc HBAs.
7776 lpfc_sli_setup(phba);
7777 lpfc_sli_queue_init(phba);
7779 /* Allocate device driver memory */
7780 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
7783 phba->lpfc_sg_dma_buf_pool =
7784 dma_pool_create("lpfc_sg_dma_buf_pool",
7785 &phba->pcidev->dev, phba->cfg_sg_dma_buf_size,
7788 if (!phba->lpfc_sg_dma_buf_pool)
7791 phba->lpfc_cmd_rsp_buf_pool =
7792 dma_pool_create("lpfc_cmd_rsp_buf_pool",
7794 sizeof(struct fcp_cmnd) +
7795 sizeof(struct fcp_rsp),
7798 if (!phba->lpfc_cmd_rsp_buf_pool)
7799 goto fail_free_dma_buf_pool;
7802 * Enable sr-iov virtual functions if supported and configured
7803 * through the module parameter.
7805 if (phba->cfg_sriov_nr_virtfn > 0) {
7806 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
7807 phba->cfg_sriov_nr_virtfn);
7809 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7810 "2808 Requested number of SR-IOV "
7811 "virtual functions (%d) is not "
7813 phba->cfg_sriov_nr_virtfn);
7814 phba->cfg_sriov_nr_virtfn = 0;
7820 fail_free_dma_buf_pool:
7821 dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
7822 phba->lpfc_sg_dma_buf_pool = NULL;
7824 lpfc_mem_free(phba);
7829 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
7830 * @phba: pointer to lpfc hba data structure.
7832 * This routine is invoked to unset the driver internal resources set up
7833 * specific for supporting the SLI-3 HBA device it attached to.
7836 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
7838 /* Free device driver memory allocated */
7839 lpfc_mem_free_all(phba);
7845 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
7846 * @phba: pointer to lpfc hba data structure.
7848 * This routine is invoked to set up the driver internal resources specific to
7849 * support the SLI-4 HBA device it attached to.
7853 * other values - error
7856 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
7858 LPFC_MBOXQ_t *mboxq;
7860 int rc, i, max_buf_size;
7867 phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7868 phba->sli4_hba.num_possible_cpu = cpumask_last(cpu_possible_mask) + 1;
7869 phba->sli4_hba.curr_disp_cpu = 0;
7871 /* Get all the module params for configuring this host */
7872 lpfc_get_cfgparam(phba);
7874 /* Set up phase-1 common device driver resources */
7875 rc = lpfc_setup_driver_resource_phase1(phba);
7879 /* Before proceed, wait for POST done and device ready */
7880 rc = lpfc_sli4_post_status_check(phba);
7884 /* Allocate all driver workqueues here */
7886 /* The lpfc_wq workqueue for deferred irq use */
7887 phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
7890 * Initialize timers used by driver
7893 timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
7895 /* FCF rediscover timer */
7896 timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
7898 /* CMF congestion timer */
7899 hrtimer_init(&phba->cmf_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
7900 phba->cmf_timer.function = lpfc_cmf_timer;
7903 * Control structure for handling external multi-buffer mailbox
7904 * command pass-through.
7906 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
7907 sizeof(struct lpfc_mbox_ext_buf_ctx));
7908 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
7910 phba->max_vpi = LPFC_MAX_VPI;
7912 /* This will be set to correct value after the read_config mbox */
7913 phba->max_vports = 0;
7915 /* Program the default value of vlan_id and fc_map */
7916 phba->valid_vlan = 0;
7917 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
7918 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
7919 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
7922 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
7923 * we will associate a new ring, for each EQ/CQ/WQ tuple.
7924 * The WQ create will allocate the ring.
7927 /* Initialize buffer queue management fields */
7928 INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
7929 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
7930 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
7932 /* for VMID idle timeout if VMID is enabled */
7933 if (lpfc_is_vmid_enabled(phba))
7934 timer_setup(&phba->inactive_vmid_poll, lpfc_vmid_poll, 0);
7937 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
7939 /* Initialize the Abort buffer list used by driver */
7940 spin_lock_init(&phba->sli4_hba.abts_io_buf_list_lock);
7941 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_io_buf_list);
7943 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
7944 /* Initialize the Abort nvme buffer list used by driver */
7945 spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
7946 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
7947 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
7948 spin_lock_init(&phba->sli4_hba.t_active_list_lock);
7949 INIT_LIST_HEAD(&phba->sli4_hba.t_active_ctx_list);
7952 /* This abort list used by worker thread */
7953 spin_lock_init(&phba->sli4_hba.sgl_list_lock);
7954 spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
7955 spin_lock_init(&phba->sli4_hba.asynce_list_lock);
7956 spin_lock_init(&phba->sli4_hba.els_xri_abrt_list_lock);
7959 * Initialize driver internal slow-path work queues
7962 /* Driver internel slow-path CQ Event pool */
7963 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
7964 /* Response IOCB work queue list */
7965 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
7966 /* Asynchronous event CQ Event work queue list */
7967 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
7968 /* Slow-path XRI aborted CQ Event work queue list */
7969 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
7970 /* Receive queue CQ Event work queue list */
7971 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
7973 /* Initialize extent block lists. */
7974 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
7975 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
7976 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
7977 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
7979 /* Initialize mboxq lists. If the early init routines fail
7980 * these lists need to be correctly initialized.
7982 INIT_LIST_HEAD(&phba->sli.mboxq);
7983 INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
7985 /* initialize optic_state to 0xFF */
7986 phba->sli4_hba.lnk_info.optic_state = 0xff;
7988 /* Allocate device driver memory */
7989 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
7993 /* IF Type 2 ports get initialized now. */
7994 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
7995 LPFC_SLI_INTF_IF_TYPE_2) {
7996 rc = lpfc_pci_function_reset(phba);
8001 phba->temp_sensor_support = 1;
8004 /* Create the bootstrap mailbox command */
8005 rc = lpfc_create_bootstrap_mbox(phba);
8009 /* Set up the host's endian order with the device. */
8010 rc = lpfc_setup_endian_order(phba);
8012 goto out_free_bsmbx;
8014 /* Set up the hba's configuration parameters. */
8015 rc = lpfc_sli4_read_config(phba);
8017 goto out_free_bsmbx;
8018 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
8020 goto out_free_bsmbx;
8022 /* IF Type 0 ports get initialized now. */
8023 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
8024 LPFC_SLI_INTF_IF_TYPE_0) {
8025 rc = lpfc_pci_function_reset(phba);
8027 goto out_free_bsmbx;
8030 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8034 goto out_free_bsmbx;
8037 /* Check for NVMET being configured */
8038 phba->nvmet_support = 0;
8039 if (lpfc_enable_nvmet_cnt) {
8041 /* First get WWN of HBA instance */
8042 lpfc_read_nv(phba, mboxq);
8043 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8044 if (rc != MBX_SUCCESS) {
8045 lpfc_printf_log(phba, KERN_ERR,
8047 "6016 Mailbox failed , mbxCmd x%x "
8048 "READ_NV, mbxStatus x%x\n",
8049 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
8050 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
8051 mempool_free(mboxq, phba->mbox_mem_pool);
8053 goto out_free_bsmbx;
8056 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
8058 wwn = cpu_to_be64(wwn);
8059 phba->sli4_hba.wwnn.u.name = wwn;
8060 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
8062 /* wwn is WWPN of HBA instance */
8063 wwn = cpu_to_be64(wwn);
8064 phba->sli4_hba.wwpn.u.name = wwn;
8066 /* Check to see if it matches any module parameter */
8067 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
8068 if (wwn == lpfc_enable_nvmet[i]) {
8069 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
8070 if (lpfc_nvmet_mem_alloc(phba))
8073 phba->nvmet_support = 1; /* a match */
8075 lpfc_printf_log(phba, KERN_ERR,
8077 "6017 NVME Target %016llx\n",
8080 lpfc_printf_log(phba, KERN_ERR,
8082 "6021 Can't enable NVME Target."
8083 " NVME_TARGET_FC infrastructure"
8084 " is not in kernel\n");
8086 /* Not supported for NVMET */
8087 phba->cfg_xri_rebalancing = 0;
8088 if (phba->irq_chann_mode == NHT_MODE) {
8089 phba->cfg_irq_chann =
8090 phba->sli4_hba.num_present_cpu;
8091 phba->cfg_hdw_queue =
8092 phba->sli4_hba.num_present_cpu;
8093 phba->irq_chann_mode = NORMAL_MODE;
8100 lpfc_nvme_mod_param_dep(phba);
8103 * Get sli4 parameters that override parameters from Port capabilities.
8104 * If this call fails, it isn't critical unless the SLI4 parameters come
8107 rc = lpfc_get_sli4_parameters(phba, mboxq);
8109 if_type = bf_get(lpfc_sli_intf_if_type,
8110 &phba->sli4_hba.sli_intf);
8111 if_fam = bf_get(lpfc_sli_intf_sli_family,
8112 &phba->sli4_hba.sli_intf);
8113 if (phba->sli4_hba.extents_in_use &&
8114 phba->sli4_hba.rpi_hdrs_in_use) {
8115 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8116 "2999 Unsupported SLI4 Parameters "
8117 "Extents and RPI headers enabled.\n");
8118 if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
8119 if_fam == LPFC_SLI_INTF_FAMILY_BE2) {
8120 mempool_free(mboxq, phba->mbox_mem_pool);
8122 goto out_free_bsmbx;
8125 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
8126 if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
8127 mempool_free(mboxq, phba->mbox_mem_pool);
8129 goto out_free_bsmbx;
8134 * 1 for cmd, 1 for rsp, NVME adds an extra one
8135 * for boundary conditions in its max_sgl_segment template.
8138 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
8142 * It doesn't matter what family our adapter is in, we are
8143 * limited to 2 Pages, 512 SGEs, for our SGL.
8144 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
8146 max_buf_size = (2 * SLI4_PAGE_SIZE);
8149 * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
8150 * used to create the sg_dma_buf_pool must be calculated.
8152 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
8153 /* Both cfg_enable_bg and cfg_external_dif code paths */
8156 * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
8157 * the FCP rsp, and a SGE. Sice we have no control
8158 * over how many protection segments the SCSI Layer
8159 * will hand us (ie: there could be one for every block
8160 * in the IO), just allocate enough SGEs to accomidate
8161 * our max amount and we need to limit lpfc_sg_seg_cnt
8162 * to minimize the risk of running out.
8164 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
8165 sizeof(struct fcp_rsp) + max_buf_size;
8167 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
8168 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
8171 * If supporting DIF, reduce the seg count for scsi to
8172 * allow room for the DIF sges.
8174 if (phba->cfg_enable_bg &&
8175 phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
8176 phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
8178 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
8182 * The scsi_buf for a regular I/O holds the FCP cmnd,
8183 * the FCP rsp, a SGE for each, and a SGE for up to
8184 * cfg_sg_seg_cnt data segments.
8186 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
8187 sizeof(struct fcp_rsp) +
8188 ((phba->cfg_sg_seg_cnt + extra) *
8189 sizeof(struct sli4_sge));
8191 /* Total SGEs for scsi_sg_list */
8192 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
8193 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
8196 * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
8197 * need to post 1 page for the SGL.
8201 if (phba->cfg_xpsgl && !phba->nvmet_support)
8202 phba->cfg_sg_dma_buf_size = LPFC_DEFAULT_XPSGL_SIZE;
8203 else if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ)
8204 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
8206 phba->cfg_sg_dma_buf_size =
8207 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
8209 phba->border_sge_num = phba->cfg_sg_dma_buf_size /
8210 sizeof(struct sli4_sge);
8212 /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
8213 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8214 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
8215 lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
8216 "6300 Reducing NVME sg segment "
8218 LPFC_MAX_NVME_SEG_CNT);
8219 phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
8221 phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
8224 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
8225 "9087 sg_seg_cnt:%d dmabuf_size:%d "
8226 "total:%d scsi:%d nvme:%d\n",
8227 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
8228 phba->cfg_total_seg_cnt, phba->cfg_scsi_seg_cnt,
8229 phba->cfg_nvme_seg_cnt);
8231 if (phba->cfg_sg_dma_buf_size < SLI4_PAGE_SIZE)
8232 i = phba->cfg_sg_dma_buf_size;
8236 phba->lpfc_sg_dma_buf_pool =
8237 dma_pool_create("lpfc_sg_dma_buf_pool",
8239 phba->cfg_sg_dma_buf_size,
8241 if (!phba->lpfc_sg_dma_buf_pool)
8242 goto out_free_bsmbx;
8244 phba->lpfc_cmd_rsp_buf_pool =
8245 dma_pool_create("lpfc_cmd_rsp_buf_pool",
8247 sizeof(struct fcp_cmnd) +
8248 sizeof(struct fcp_rsp),
8250 if (!phba->lpfc_cmd_rsp_buf_pool)
8251 goto out_free_sg_dma_buf;
8253 mempool_free(mboxq, phba->mbox_mem_pool);
8255 /* Verify OAS is supported */
8256 lpfc_sli4_oas_verify(phba);
8258 /* Verify RAS support on adapter */
8259 lpfc_sli4_ras_init(phba);
8261 /* Verify all the SLI4 queues */
8262 rc = lpfc_sli4_queue_verify(phba);
8264 goto out_free_cmd_rsp_buf;
8266 /* Create driver internal CQE event pool */
8267 rc = lpfc_sli4_cq_event_pool_create(phba);
8269 goto out_free_cmd_rsp_buf;
8271 /* Initialize sgl lists per host */
8272 lpfc_init_sgl_list(phba);
8274 /* Allocate and initialize active sgl array */
8275 rc = lpfc_init_active_sgl_array(phba);
8277 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8278 "1430 Failed to initialize sgl list.\n");
8279 goto out_destroy_cq_event_pool;
8281 rc = lpfc_sli4_init_rpi_hdrs(phba);
8283 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8284 "1432 Failed to initialize rpi headers.\n");
8285 goto out_free_active_sgl;
8288 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
8289 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
8290 phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
8292 if (!phba->fcf.fcf_rr_bmask) {
8293 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8294 "2759 Failed allocate memory for FCF round "
8295 "robin failover bmask\n");
8297 goto out_remove_rpi_hdrs;
8300 phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann,
8301 sizeof(struct lpfc_hba_eq_hdl),
8303 if (!phba->sli4_hba.hba_eq_hdl) {
8304 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8305 "2572 Failed allocate memory for "
8306 "fast-path per-EQ handle array\n");
8308 goto out_free_fcf_rr_bmask;
8311 phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu,
8312 sizeof(struct lpfc_vector_map_info),
8314 if (!phba->sli4_hba.cpu_map) {
8315 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8316 "3327 Failed allocate memory for msi-x "
8317 "interrupt vector mapping\n");
8319 goto out_free_hba_eq_hdl;
8322 phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
8323 if (!phba->sli4_hba.eq_info) {
8324 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8325 "3321 Failed allocation for per_cpu stats\n");
8327 goto out_free_hba_cpu_map;
8330 phba->sli4_hba.idle_stat = kcalloc(phba->sli4_hba.num_possible_cpu,
8331 sizeof(*phba->sli4_hba.idle_stat),
8333 if (!phba->sli4_hba.idle_stat) {
8334 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8335 "3390 Failed allocation for idle_stat\n");
8337 goto out_free_hba_eq_info;
8340 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8341 phba->sli4_hba.c_stat = alloc_percpu(struct lpfc_hdwq_stat);
8342 if (!phba->sli4_hba.c_stat) {
8343 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8344 "3332 Failed allocating per cpu hdwq stats\n");
8346 goto out_free_hba_idle_stat;
8350 phba->cmf_stat = alloc_percpu(struct lpfc_cgn_stat);
8351 if (!phba->cmf_stat) {
8352 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8353 "3331 Failed allocating per cpu cgn stats\n");
8355 goto out_free_hba_hdwq_info;
8359 * Enable sr-iov virtual functions if supported and configured
8360 * through the module parameter.
8362 if (phba->cfg_sriov_nr_virtfn > 0) {
8363 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
8364 phba->cfg_sriov_nr_virtfn);
8366 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8367 "3020 Requested number of SR-IOV "
8368 "virtual functions (%d) is not "
8370 phba->cfg_sriov_nr_virtfn);
8371 phba->cfg_sriov_nr_virtfn = 0;
8377 out_free_hba_hdwq_info:
8378 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8379 free_percpu(phba->sli4_hba.c_stat);
8380 out_free_hba_idle_stat:
8382 kfree(phba->sli4_hba.idle_stat);
8383 out_free_hba_eq_info:
8384 free_percpu(phba->sli4_hba.eq_info);
8385 out_free_hba_cpu_map:
8386 kfree(phba->sli4_hba.cpu_map);
8387 out_free_hba_eq_hdl:
8388 kfree(phba->sli4_hba.hba_eq_hdl);
8389 out_free_fcf_rr_bmask:
8390 kfree(phba->fcf.fcf_rr_bmask);
8391 out_remove_rpi_hdrs:
8392 lpfc_sli4_remove_rpi_hdrs(phba);
8393 out_free_active_sgl:
8394 lpfc_free_active_sgl(phba);
8395 out_destroy_cq_event_pool:
8396 lpfc_sli4_cq_event_pool_destroy(phba);
8397 out_free_cmd_rsp_buf:
8398 dma_pool_destroy(phba->lpfc_cmd_rsp_buf_pool);
8399 phba->lpfc_cmd_rsp_buf_pool = NULL;
8400 out_free_sg_dma_buf:
8401 dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
8402 phba->lpfc_sg_dma_buf_pool = NULL;
8404 lpfc_destroy_bootstrap_mbox(phba);
8406 lpfc_mem_free(phba);
8411 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
8412 * @phba: pointer to lpfc hba data structure.
8414 * This routine is invoked to unset the driver internal resources set up
8415 * specific for supporting the SLI-4 HBA device it attached to.
8418 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
8420 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
8422 free_percpu(phba->sli4_hba.eq_info);
8423 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8424 free_percpu(phba->sli4_hba.c_stat);
8426 free_percpu(phba->cmf_stat);
8427 kfree(phba->sli4_hba.idle_stat);
8429 /* Free memory allocated for msi-x interrupt vector to CPU mapping */
8430 kfree(phba->sli4_hba.cpu_map);
8431 phba->sli4_hba.num_possible_cpu = 0;
8432 phba->sli4_hba.num_present_cpu = 0;
8433 phba->sli4_hba.curr_disp_cpu = 0;
8434 cpumask_clear(&phba->sli4_hba.irq_aff_mask);
8436 /* Free memory allocated for fast-path work queue handles */
8437 kfree(phba->sli4_hba.hba_eq_hdl);
8439 /* Free the allocated rpi headers. */
8440 lpfc_sli4_remove_rpi_hdrs(phba);
8441 lpfc_sli4_remove_rpis(phba);
8443 /* Free eligible FCF index bmask */
8444 kfree(phba->fcf.fcf_rr_bmask);
8446 /* Free the ELS sgl list */
8447 lpfc_free_active_sgl(phba);
8448 lpfc_free_els_sgl_list(phba);
8449 lpfc_free_nvmet_sgl_list(phba);
8451 /* Free the completion queue EQ event pool */
8452 lpfc_sli4_cq_event_release_all(phba);
8453 lpfc_sli4_cq_event_pool_destroy(phba);
8455 /* Release resource identifiers. */
8456 lpfc_sli4_dealloc_resource_identifiers(phba);
8458 /* Free the bsmbx region. */
8459 lpfc_destroy_bootstrap_mbox(phba);
8461 /* Free the SLI Layer memory with SLI4 HBAs */
8462 lpfc_mem_free_all(phba);
8464 /* Free the current connect table */
8465 list_for_each_entry_safe(conn_entry, next_conn_entry,
8466 &phba->fcf_conn_rec_list, list) {
8467 list_del_init(&conn_entry->list);
8475 * lpfc_init_api_table_setup - Set up init api function jump table
8476 * @phba: The hba struct for which this call is being executed.
8477 * @dev_grp: The HBA PCI-Device group number.
8479 * This routine sets up the device INIT interface API function jump table
8482 * Returns: 0 - success, -ENODEV - failure.
8485 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8487 phba->lpfc_hba_init_link = lpfc_hba_init_link;
8488 phba->lpfc_hba_down_link = lpfc_hba_down_link;
8489 phba->lpfc_selective_reset = lpfc_selective_reset;
8491 case LPFC_PCI_DEV_LP:
8492 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
8493 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
8494 phba->lpfc_stop_port = lpfc_stop_port_s3;
8496 case LPFC_PCI_DEV_OC:
8497 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
8498 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
8499 phba->lpfc_stop_port = lpfc_stop_port_s4;
8502 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8503 "1431 Invalid HBA PCI-device group: 0x%x\n",
8511 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
8512 * @phba: pointer to lpfc hba data structure.
8514 * This routine is invoked to set up the driver internal resources after the
8515 * device specific resource setup to support the HBA device it attached to.
8519 * other values - error
8522 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
8526 /* Startup the kernel thread for this host adapter. */
8527 phba->worker_thread = kthread_run(lpfc_do_work, phba,
8528 "lpfc_worker_%d", phba->brd_no);
8529 if (IS_ERR(phba->worker_thread)) {
8530 error = PTR_ERR(phba->worker_thread);
8538 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
8539 * @phba: pointer to lpfc hba data structure.
8541 * This routine is invoked to unset the driver internal resources set up after
8542 * the device specific resource setup for supporting the HBA device it
8546 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
8549 flush_workqueue(phba->wq);
8550 destroy_workqueue(phba->wq);
8554 /* Stop kernel worker thread */
8555 if (phba->worker_thread)
8556 kthread_stop(phba->worker_thread);
8560 * lpfc_free_iocb_list - Free iocb list.
8561 * @phba: pointer to lpfc hba data structure.
8563 * This routine is invoked to free the driver's IOCB list and memory.
8566 lpfc_free_iocb_list(struct lpfc_hba *phba)
8568 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
8570 spin_lock_irq(&phba->hbalock);
8571 list_for_each_entry_safe(iocbq_entry, iocbq_next,
8572 &phba->lpfc_iocb_list, list) {
8573 list_del(&iocbq_entry->list);
8575 phba->total_iocbq_bufs--;
8577 spin_unlock_irq(&phba->hbalock);
8583 * lpfc_init_iocb_list - Allocate and initialize iocb list.
8584 * @phba: pointer to lpfc hba data structure.
8585 * @iocb_count: number of requested iocbs
8587 * This routine is invoked to allocate and initizlize the driver's IOCB
8588 * list and set up the IOCB tag array accordingly.
8592 * other values - error
8595 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
8597 struct lpfc_iocbq *iocbq_entry = NULL;
8601 /* Initialize and populate the iocb list per host. */
8602 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
8603 for (i = 0; i < iocb_count; i++) {
8604 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
8605 if (iocbq_entry == NULL) {
8606 printk(KERN_ERR "%s: only allocated %d iocbs of "
8607 "expected %d count. Unloading driver.\n",
8608 __func__, i, iocb_count);
8609 goto out_free_iocbq;
8612 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
8615 printk(KERN_ERR "%s: failed to allocate IOTAG. "
8616 "Unloading driver.\n", __func__);
8617 goto out_free_iocbq;
8619 iocbq_entry->sli4_lxritag = NO_XRI;
8620 iocbq_entry->sli4_xritag = NO_XRI;
8622 spin_lock_irq(&phba->hbalock);
8623 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
8624 phba->total_iocbq_bufs++;
8625 spin_unlock_irq(&phba->hbalock);
8631 lpfc_free_iocb_list(phba);
8637 * lpfc_free_sgl_list - Free a given sgl list.
8638 * @phba: pointer to lpfc hba data structure.
8639 * @sglq_list: pointer to the head of sgl list.
8641 * This routine is invoked to free a give sgl list and memory.
8644 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
8646 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8648 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
8649 list_del(&sglq_entry->list);
8650 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
8656 * lpfc_free_els_sgl_list - Free els sgl list.
8657 * @phba: pointer to lpfc hba data structure.
8659 * This routine is invoked to free the driver's els sgl list and memory.
8662 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
8664 LIST_HEAD(sglq_list);
8666 /* Retrieve all els sgls from driver list */
8667 spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
8668 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
8669 spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
8671 /* Now free the sgl list */
8672 lpfc_free_sgl_list(phba, &sglq_list);
8676 * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
8677 * @phba: pointer to lpfc hba data structure.
8679 * This routine is invoked to free the driver's nvmet sgl list and memory.
8682 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
8684 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8685 LIST_HEAD(sglq_list);
8687 /* Retrieve all nvmet sgls from driver list */
8688 spin_lock_irq(&phba->hbalock);
8689 spin_lock(&phba->sli4_hba.sgl_list_lock);
8690 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
8691 spin_unlock(&phba->sli4_hba.sgl_list_lock);
8692 spin_unlock_irq(&phba->hbalock);
8694 /* Now free the sgl list */
8695 list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
8696 list_del(&sglq_entry->list);
8697 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
8701 /* Update the nvmet_xri_cnt to reflect no current sgls.
8702 * The next initialization cycle sets the count and allocates
8703 * the sgls over again.
8705 phba->sli4_hba.nvmet_xri_cnt = 0;
8709 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
8710 * @phba: pointer to lpfc hba data structure.
8712 * This routine is invoked to allocate the driver's active sgl memory.
8713 * This array will hold the sglq_entry's for active IOs.
8716 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
8719 size = sizeof(struct lpfc_sglq *);
8720 size *= phba->sli4_hba.max_cfg_param.max_xri;
8722 phba->sli4_hba.lpfc_sglq_active_list =
8723 kzalloc(size, GFP_KERNEL);
8724 if (!phba->sli4_hba.lpfc_sglq_active_list)
8730 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
8731 * @phba: pointer to lpfc hba data structure.
8733 * This routine is invoked to walk through the array of active sglq entries
8734 * and free all of the resources.
8735 * This is just a place holder for now.
8738 lpfc_free_active_sgl(struct lpfc_hba *phba)
8740 kfree(phba->sli4_hba.lpfc_sglq_active_list);
8744 * lpfc_init_sgl_list - Allocate and initialize sgl list.
8745 * @phba: pointer to lpfc hba data structure.
8747 * This routine is invoked to allocate and initizlize the driver's sgl
8748 * list and set up the sgl xritag tag array accordingly.
8752 lpfc_init_sgl_list(struct lpfc_hba *phba)
8754 /* Initialize and populate the sglq list per host/VF. */
8755 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
8756 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8757 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
8758 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
8760 /* els xri-sgl book keeping */
8761 phba->sli4_hba.els_xri_cnt = 0;
8763 /* nvme xri-buffer book keeping */
8764 phba->sli4_hba.io_xri_cnt = 0;
8768 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
8769 * @phba: pointer to lpfc hba data structure.
8771 * This routine is invoked to post rpi header templates to the
8772 * port for those SLI4 ports that do not support extents. This routine
8773 * posts a PAGE_SIZE memory region to the port to hold up to
8774 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
8775 * and should be called only when interrupts are disabled.
8779 * -ERROR - otherwise.
8782 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
8785 struct lpfc_rpi_hdr *rpi_hdr;
8787 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
8788 if (!phba->sli4_hba.rpi_hdrs_in_use)
8790 if (phba->sli4_hba.extents_in_use)
8793 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
8795 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8796 "0391 Error during rpi post operation\n");
8797 lpfc_sli4_remove_rpis(phba);
8805 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
8806 * @phba: pointer to lpfc hba data structure.
8808 * This routine is invoked to allocate a single 4KB memory region to
8809 * support rpis and stores them in the phba. This single region
8810 * provides support for up to 64 rpis. The region is used globally
8814 * A valid rpi hdr on success.
8815 * A NULL pointer on any failure.
8817 struct lpfc_rpi_hdr *
8818 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
8820 uint16_t rpi_limit, curr_rpi_range;
8821 struct lpfc_dmabuf *dmabuf;
8822 struct lpfc_rpi_hdr *rpi_hdr;
8825 * If the SLI4 port supports extents, posting the rpi header isn't
8826 * required. Set the expected maximum count and let the actual value
8827 * get set when extents are fully allocated.
8829 if (!phba->sli4_hba.rpi_hdrs_in_use)
8831 if (phba->sli4_hba.extents_in_use)
8834 /* The limit on the logical index is just the max_rpi count. */
8835 rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
8837 spin_lock_irq(&phba->hbalock);
8839 * Establish the starting RPI in this header block. The starting
8840 * rpi is normalized to a zero base because the physical rpi is
8843 curr_rpi_range = phba->sli4_hba.next_rpi;
8844 spin_unlock_irq(&phba->hbalock);
8846 /* Reached full RPI range */
8847 if (curr_rpi_range == rpi_limit)
8851 * First allocate the protocol header region for the port. The
8852 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
8854 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
8858 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
8859 LPFC_HDR_TEMPLATE_SIZE,
8860 &dmabuf->phys, GFP_KERNEL);
8861 if (!dmabuf->virt) {
8863 goto err_free_dmabuf;
8866 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
8868 goto err_free_coherent;
8871 /* Save the rpi header data for cleanup later. */
8872 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
8874 goto err_free_coherent;
8876 rpi_hdr->dmabuf = dmabuf;
8877 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
8878 rpi_hdr->page_count = 1;
8879 spin_lock_irq(&phba->hbalock);
8881 /* The rpi_hdr stores the logical index only. */
8882 rpi_hdr->start_rpi = curr_rpi_range;
8883 rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
8884 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
8886 spin_unlock_irq(&phba->hbalock);
8890 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
8891 dmabuf->virt, dmabuf->phys);
8898 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
8899 * @phba: pointer to lpfc hba data structure.
8901 * This routine is invoked to remove all memory resources allocated
8902 * to support rpis for SLI4 ports not supporting extents. This routine
8903 * presumes the caller has released all rpis consumed by fabric or port
8904 * logins and is prepared to have the header pages removed.
8907 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
8909 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
8911 if (!phba->sli4_hba.rpi_hdrs_in_use)
8914 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
8915 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
8916 list_del(&rpi_hdr->list);
8917 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
8918 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
8919 kfree(rpi_hdr->dmabuf);
8923 /* There are no rpis available to the port now. */
8924 phba->sli4_hba.next_rpi = 0;
8928 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
8929 * @pdev: pointer to pci device data structure.
8931 * This routine is invoked to allocate the driver hba data structure for an
8932 * HBA device. If the allocation is successful, the phba reference to the
8933 * PCI device data structure is set.
8936 * pointer to @phba - successful
8939 static struct lpfc_hba *
8940 lpfc_hba_alloc(struct pci_dev *pdev)
8942 struct lpfc_hba *phba;
8944 /* Allocate memory for HBA structure */
8945 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
8947 dev_err(&pdev->dev, "failed to allocate hba struct\n");
8951 /* Set reference to PCI device in HBA structure */
8952 phba->pcidev = pdev;
8954 /* Assign an unused board number */
8955 phba->brd_no = lpfc_get_instance();
8956 if (phba->brd_no < 0) {
8960 phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
8962 spin_lock_init(&phba->ct_ev_lock);
8963 INIT_LIST_HEAD(&phba->ct_ev_waiters);
8969 * lpfc_hba_free - Free driver hba data structure with a device.
8970 * @phba: pointer to lpfc hba data structure.
8972 * This routine is invoked to free the driver hba data structure with an
8976 lpfc_hba_free(struct lpfc_hba *phba)
8978 if (phba->sli_rev == LPFC_SLI_REV4)
8979 kfree(phba->sli4_hba.hdwq);
8981 /* Release the driver assigned board number */
8982 idr_remove(&lpfc_hba_index, phba->brd_no);
8984 /* Free memory allocated with sli3 rings */
8985 kfree(phba->sli.sli3_ring);
8986 phba->sli.sli3_ring = NULL;
8993 * lpfc_create_shost - Create hba physical port with associated scsi host.
8994 * @phba: pointer to lpfc hba data structure.
8996 * This routine is invoked to create HBA physical port and associate a SCSI
9001 * other values - error
9004 lpfc_create_shost(struct lpfc_hba *phba)
9006 struct lpfc_vport *vport;
9007 struct Scsi_Host *shost;
9009 /* Initialize HBA FC structure */
9010 phba->fc_edtov = FF_DEF_EDTOV;
9011 phba->fc_ratov = FF_DEF_RATOV;
9012 phba->fc_altov = FF_DEF_ALTOV;
9013 phba->fc_arbtov = FF_DEF_ARBTOV;
9015 atomic_set(&phba->sdev_cnt, 0);
9016 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
9020 shost = lpfc_shost_from_vport(vport);
9021 phba->pport = vport;
9023 if (phba->nvmet_support) {
9024 /* Only 1 vport (pport) will support NVME target */
9025 phba->targetport = NULL;
9026 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
9027 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME_DISC,
9028 "6076 NVME Target Found\n");
9031 lpfc_debugfs_initialize(vport);
9032 /* Put reference to SCSI host to driver's device private data */
9033 pci_set_drvdata(phba->pcidev, shost);
9036 * At this point we are fully registered with PSA. In addition,
9037 * any initial discovery should be completed.
9039 vport->load_flag |= FC_ALLOW_FDMI;
9040 if (phba->cfg_enable_SmartSAN ||
9041 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
9043 /* Setup appropriate attribute masks */
9044 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
9045 if (phba->cfg_enable_SmartSAN)
9046 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
9048 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
9054 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
9055 * @phba: pointer to lpfc hba data structure.
9057 * This routine is invoked to destroy HBA physical port and the associated
9061 lpfc_destroy_shost(struct lpfc_hba *phba)
9063 struct lpfc_vport *vport = phba->pport;
9065 /* Destroy physical port that associated with the SCSI host */
9066 destroy_port(vport);
9072 * lpfc_setup_bg - Setup Block guard structures and debug areas.
9073 * @phba: pointer to lpfc hba data structure.
9074 * @shost: the shost to be used to detect Block guard settings.
9076 * This routine sets up the local Block guard protocol settings for @shost.
9077 * This routine also allocates memory for debugging bg buffers.
9080 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
9085 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
9086 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9087 "1478 Registering BlockGuard with the "
9090 old_mask = phba->cfg_prot_mask;
9091 old_guard = phba->cfg_prot_guard;
9093 /* Only allow supported values */
9094 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
9095 SHOST_DIX_TYPE0_PROTECTION |
9096 SHOST_DIX_TYPE1_PROTECTION);
9097 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
9098 SHOST_DIX_GUARD_CRC);
9100 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
9101 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
9102 phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
9104 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
9105 if ((old_mask != phba->cfg_prot_mask) ||
9106 (old_guard != phba->cfg_prot_guard))
9107 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9108 "1475 Registering BlockGuard with the "
9109 "SCSI layer: mask %d guard %d\n",
9110 phba->cfg_prot_mask,
9111 phba->cfg_prot_guard);
9113 scsi_host_set_prot(shost, phba->cfg_prot_mask);
9114 scsi_host_set_guard(shost, phba->cfg_prot_guard);
9116 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9117 "1479 Not Registering BlockGuard with the SCSI "
9118 "layer, Bad protection parameters: %d %d\n",
9119 old_mask, old_guard);
9124 * lpfc_post_init_setup - Perform necessary device post initialization setup.
9125 * @phba: pointer to lpfc hba data structure.
9127 * This routine is invoked to perform all the necessary post initialization
9128 * setup for the device.
9131 lpfc_post_init_setup(struct lpfc_hba *phba)
9133 struct Scsi_Host *shost;
9134 struct lpfc_adapter_event_header adapter_event;
9136 /* Get the default values for Model Name and Description */
9137 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9140 * hba setup may have changed the hba_queue_depth so we need to
9141 * adjust the value of can_queue.
9143 shost = pci_get_drvdata(phba->pcidev);
9144 shost->can_queue = phba->cfg_hba_queue_depth - 10;
9146 lpfc_host_attrib_init(shost);
9148 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
9149 spin_lock_irq(shost->host_lock);
9150 lpfc_poll_start_timer(phba);
9151 spin_unlock_irq(shost->host_lock);
9154 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9155 "0428 Perform SCSI scan\n");
9156 /* Send board arrival event to upper layer */
9157 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
9158 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
9159 fc_host_post_vendor_event(shost, fc_get_event_number(),
9160 sizeof(adapter_event),
9161 (char *) &adapter_event,
9167 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
9168 * @phba: pointer to lpfc hba data structure.
9170 * This routine is invoked to set up the PCI device memory space for device
9171 * with SLI-3 interface spec.
9175 * other values - error
9178 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
9180 struct pci_dev *pdev = phba->pcidev;
9181 unsigned long bar0map_len, bar2map_len;
9189 /* Set the device DMA mask size */
9190 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
9192 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
9197 /* Get the bus address of Bar0 and Bar2 and the number of bytes
9198 * required by each mapping.
9200 phba->pci_bar0_map = pci_resource_start(pdev, 0);
9201 bar0map_len = pci_resource_len(pdev, 0);
9203 phba->pci_bar2_map = pci_resource_start(pdev, 2);
9204 bar2map_len = pci_resource_len(pdev, 2);
9206 /* Map HBA SLIM to a kernel virtual address. */
9207 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
9208 if (!phba->slim_memmap_p) {
9209 dev_printk(KERN_ERR, &pdev->dev,
9210 "ioremap failed for SLIM memory.\n");
9214 /* Map HBA Control Registers to a kernel virtual address. */
9215 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
9216 if (!phba->ctrl_regs_memmap_p) {
9217 dev_printk(KERN_ERR, &pdev->dev,
9218 "ioremap failed for HBA control registers.\n");
9219 goto out_iounmap_slim;
9222 /* Allocate memory for SLI-2 structures */
9223 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9224 &phba->slim2p.phys, GFP_KERNEL);
9225 if (!phba->slim2p.virt)
9228 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
9229 phba->mbox_ext = (phba->slim2p.virt +
9230 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
9231 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
9232 phba->IOCBs = (phba->slim2p.virt +
9233 offsetof(struct lpfc_sli2_slim, IOCBs));
9235 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
9236 lpfc_sli_hbq_size(),
9237 &phba->hbqslimp.phys,
9239 if (!phba->hbqslimp.virt)
9242 hbq_count = lpfc_sli_hbq_count();
9243 ptr = phba->hbqslimp.virt;
9244 for (i = 0; i < hbq_count; ++i) {
9245 phba->hbqs[i].hbq_virt = ptr;
9246 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
9247 ptr += (lpfc_hbq_defs[i]->entry_count *
9248 sizeof(struct lpfc_hbq_entry));
9250 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
9251 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
9253 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
9255 phba->MBslimaddr = phba->slim_memmap_p;
9256 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
9257 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
9258 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
9259 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
9264 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9265 phba->slim2p.virt, phba->slim2p.phys);
9267 iounmap(phba->ctrl_regs_memmap_p);
9269 iounmap(phba->slim_memmap_p);
9275 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
9276 * @phba: pointer to lpfc hba data structure.
9278 * This routine is invoked to unset the PCI device memory space for device
9279 * with SLI-3 interface spec.
9282 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
9284 struct pci_dev *pdev;
9286 /* Obtain PCI device reference */
9290 pdev = phba->pcidev;
9292 /* Free coherent DMA memory allocated */
9293 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9294 phba->hbqslimp.virt, phba->hbqslimp.phys);
9295 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9296 phba->slim2p.virt, phba->slim2p.phys);
9298 /* I/O memory unmap */
9299 iounmap(phba->ctrl_regs_memmap_p);
9300 iounmap(phba->slim_memmap_p);
9306 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
9307 * @phba: pointer to lpfc hba data structure.
9309 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
9310 * done and check status.
9312 * Return 0 if successful, otherwise -ENODEV.
9315 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
9317 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
9318 struct lpfc_register reg_data;
9319 int i, port_error = 0;
9322 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
9323 memset(®_data, 0, sizeof(reg_data));
9324 if (!phba->sli4_hba.PSMPHRregaddr)
9327 /* Wait up to 30 seconds for the SLI Port POST done and ready */
9328 for (i = 0; i < 3000; i++) {
9329 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
9330 &portsmphr_reg.word0) ||
9331 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
9332 /* Port has a fatal POST error, break out */
9333 port_error = -ENODEV;
9336 if (LPFC_POST_STAGE_PORT_READY ==
9337 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
9343 * If there was a port error during POST, then don't proceed with
9344 * other register reads as the data may not be valid. Just exit.
9347 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9348 "1408 Port Failed POST - portsmphr=0x%x, "
9349 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
9350 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
9351 portsmphr_reg.word0,
9352 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
9353 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
9354 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
9355 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
9356 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
9357 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
9358 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
9359 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
9361 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9362 "2534 Device Info: SLIFamily=0x%x, "
9363 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
9364 "SLIHint_2=0x%x, FT=0x%x\n",
9365 bf_get(lpfc_sli_intf_sli_family,
9366 &phba->sli4_hba.sli_intf),
9367 bf_get(lpfc_sli_intf_slirev,
9368 &phba->sli4_hba.sli_intf),
9369 bf_get(lpfc_sli_intf_if_type,
9370 &phba->sli4_hba.sli_intf),
9371 bf_get(lpfc_sli_intf_sli_hint1,
9372 &phba->sli4_hba.sli_intf),
9373 bf_get(lpfc_sli_intf_sli_hint2,
9374 &phba->sli4_hba.sli_intf),
9375 bf_get(lpfc_sli_intf_func_type,
9376 &phba->sli4_hba.sli_intf));
9378 * Check for other Port errors during the initialization
9379 * process. Fail the load if the port did not come up
9382 if_type = bf_get(lpfc_sli_intf_if_type,
9383 &phba->sli4_hba.sli_intf);
9385 case LPFC_SLI_INTF_IF_TYPE_0:
9386 phba->sli4_hba.ue_mask_lo =
9387 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
9388 phba->sli4_hba.ue_mask_hi =
9389 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
9391 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
9393 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
9394 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
9395 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
9396 lpfc_printf_log(phba, KERN_ERR,
9398 "1422 Unrecoverable Error "
9399 "Detected during POST "
9400 "uerr_lo_reg=0x%x, "
9401 "uerr_hi_reg=0x%x, "
9402 "ue_mask_lo_reg=0x%x, "
9403 "ue_mask_hi_reg=0x%x\n",
9406 phba->sli4_hba.ue_mask_lo,
9407 phba->sli4_hba.ue_mask_hi);
9408 port_error = -ENODEV;
9411 case LPFC_SLI_INTF_IF_TYPE_2:
9412 case LPFC_SLI_INTF_IF_TYPE_6:
9413 /* Final checks. The port status should be clean. */
9414 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
9416 (bf_get(lpfc_sliport_status_err, ®_data) &&
9417 !bf_get(lpfc_sliport_status_rn, ®_data))) {
9418 phba->work_status[0] =
9419 readl(phba->sli4_hba.u.if_type2.
9421 phba->work_status[1] =
9422 readl(phba->sli4_hba.u.if_type2.
9424 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9425 "2888 Unrecoverable port error "
9426 "following POST: port status reg "
9427 "0x%x, port_smphr reg 0x%x, "
9428 "error 1=0x%x, error 2=0x%x\n",
9430 portsmphr_reg.word0,
9431 phba->work_status[0],
9432 phba->work_status[1]);
9433 port_error = -ENODEV;
9437 if (lpfc_pldv_detect &&
9438 bf_get(lpfc_sli_intf_sli_family,
9439 &phba->sli4_hba.sli_intf) ==
9440 LPFC_SLI_INTF_FAMILY_G6)
9441 pci_write_config_byte(phba->pcidev,
9442 LPFC_SLI_INTF, CFG_PLD);
9444 case LPFC_SLI_INTF_IF_TYPE_1:
9453 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
9454 * @phba: pointer to lpfc hba data structure.
9455 * @if_type: The SLI4 interface type getting configured.
9457 * This routine is invoked to set up SLI4 BAR0 PCI config space register
9461 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
9464 case LPFC_SLI_INTF_IF_TYPE_0:
9465 phba->sli4_hba.u.if_type0.UERRLOregaddr =
9466 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
9467 phba->sli4_hba.u.if_type0.UERRHIregaddr =
9468 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
9469 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
9470 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
9471 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
9472 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
9473 phba->sli4_hba.SLIINTFregaddr =
9474 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
9476 case LPFC_SLI_INTF_IF_TYPE_2:
9477 phba->sli4_hba.u.if_type2.EQDregaddr =
9478 phba->sli4_hba.conf_regs_memmap_p +
9479 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
9480 phba->sli4_hba.u.if_type2.ERR1regaddr =
9481 phba->sli4_hba.conf_regs_memmap_p +
9482 LPFC_CTL_PORT_ER1_OFFSET;
9483 phba->sli4_hba.u.if_type2.ERR2regaddr =
9484 phba->sli4_hba.conf_regs_memmap_p +
9485 LPFC_CTL_PORT_ER2_OFFSET;
9486 phba->sli4_hba.u.if_type2.CTRLregaddr =
9487 phba->sli4_hba.conf_regs_memmap_p +
9488 LPFC_CTL_PORT_CTL_OFFSET;
9489 phba->sli4_hba.u.if_type2.STATUSregaddr =
9490 phba->sli4_hba.conf_regs_memmap_p +
9491 LPFC_CTL_PORT_STA_OFFSET;
9492 phba->sli4_hba.SLIINTFregaddr =
9493 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
9494 phba->sli4_hba.PSMPHRregaddr =
9495 phba->sli4_hba.conf_regs_memmap_p +
9496 LPFC_CTL_PORT_SEM_OFFSET;
9497 phba->sli4_hba.RQDBregaddr =
9498 phba->sli4_hba.conf_regs_memmap_p +
9499 LPFC_ULP0_RQ_DOORBELL;
9500 phba->sli4_hba.WQDBregaddr =
9501 phba->sli4_hba.conf_regs_memmap_p +
9502 LPFC_ULP0_WQ_DOORBELL;
9503 phba->sli4_hba.CQDBregaddr =
9504 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
9505 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
9506 phba->sli4_hba.MQDBregaddr =
9507 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
9508 phba->sli4_hba.BMBXregaddr =
9509 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
9511 case LPFC_SLI_INTF_IF_TYPE_6:
9512 phba->sli4_hba.u.if_type2.EQDregaddr =
9513 phba->sli4_hba.conf_regs_memmap_p +
9514 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
9515 phba->sli4_hba.u.if_type2.ERR1regaddr =
9516 phba->sli4_hba.conf_regs_memmap_p +
9517 LPFC_CTL_PORT_ER1_OFFSET;
9518 phba->sli4_hba.u.if_type2.ERR2regaddr =
9519 phba->sli4_hba.conf_regs_memmap_p +
9520 LPFC_CTL_PORT_ER2_OFFSET;
9521 phba->sli4_hba.u.if_type2.CTRLregaddr =
9522 phba->sli4_hba.conf_regs_memmap_p +
9523 LPFC_CTL_PORT_CTL_OFFSET;
9524 phba->sli4_hba.u.if_type2.STATUSregaddr =
9525 phba->sli4_hba.conf_regs_memmap_p +
9526 LPFC_CTL_PORT_STA_OFFSET;
9527 phba->sli4_hba.PSMPHRregaddr =
9528 phba->sli4_hba.conf_regs_memmap_p +
9529 LPFC_CTL_PORT_SEM_OFFSET;
9530 phba->sli4_hba.BMBXregaddr =
9531 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
9533 case LPFC_SLI_INTF_IF_TYPE_1:
9535 dev_printk(KERN_ERR, &phba->pcidev->dev,
9536 "FATAL - unsupported SLI4 interface type - %d\n",
9543 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
9544 * @phba: pointer to lpfc hba data structure.
9545 * @if_type: sli if type to operate on.
9547 * This routine is invoked to set up SLI4 BAR1 register memory map.
9550 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
9553 case LPFC_SLI_INTF_IF_TYPE_0:
9554 phba->sli4_hba.PSMPHRregaddr =
9555 phba->sli4_hba.ctrl_regs_memmap_p +
9556 LPFC_SLIPORT_IF0_SMPHR;
9557 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9559 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9561 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9564 case LPFC_SLI_INTF_IF_TYPE_6:
9565 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9566 LPFC_IF6_RQ_DOORBELL;
9567 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9568 LPFC_IF6_WQ_DOORBELL;
9569 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9570 LPFC_IF6_CQ_DOORBELL;
9571 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9572 LPFC_IF6_EQ_DOORBELL;
9573 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9574 LPFC_IF6_MQ_DOORBELL;
9576 case LPFC_SLI_INTF_IF_TYPE_2:
9577 case LPFC_SLI_INTF_IF_TYPE_1:
9579 dev_err(&phba->pcidev->dev,
9580 "FATAL - unsupported SLI4 interface type - %d\n",
9587 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
9588 * @phba: pointer to lpfc hba data structure.
9589 * @vf: virtual function number
9591 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
9592 * based on the given viftual function number, @vf.
9594 * Return 0 if successful, otherwise -ENODEV.
9597 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
9599 if (vf > LPFC_VIR_FUNC_MAX)
9602 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9603 vf * LPFC_VFR_PAGE_SIZE +
9604 LPFC_ULP0_RQ_DOORBELL);
9605 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9606 vf * LPFC_VFR_PAGE_SIZE +
9607 LPFC_ULP0_WQ_DOORBELL);
9608 phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9609 vf * LPFC_VFR_PAGE_SIZE +
9610 LPFC_EQCQ_DOORBELL);
9611 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
9612 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9613 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
9614 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9615 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
9620 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
9621 * @phba: pointer to lpfc hba data structure.
9623 * This routine is invoked to create the bootstrap mailbox
9624 * region consistent with the SLI-4 interface spec. This
9625 * routine allocates all memory necessary to communicate
9626 * mailbox commands to the port and sets up all alignment
9627 * needs. No locks are expected to be held when calling
9632 * -ENOMEM - could not allocated memory.
9635 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
9638 struct lpfc_dmabuf *dmabuf;
9639 struct dma_address *dma_address;
9643 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
9648 * The bootstrap mailbox region is comprised of 2 parts
9649 * plus an alignment restriction of 16 bytes.
9651 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
9652 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size,
9653 &dmabuf->phys, GFP_KERNEL);
9654 if (!dmabuf->virt) {
9660 * Initialize the bootstrap mailbox pointers now so that the register
9661 * operations are simple later. The mailbox dma address is required
9662 * to be 16-byte aligned. Also align the virtual memory as each
9663 * maibox is copied into the bmbx mailbox region before issuing the
9664 * command to the port.
9666 phba->sli4_hba.bmbx.dmabuf = dmabuf;
9667 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
9669 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
9670 LPFC_ALIGN_16_BYTE);
9671 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
9672 LPFC_ALIGN_16_BYTE);
9675 * Set the high and low physical addresses now. The SLI4 alignment
9676 * requirement is 16 bytes and the mailbox is posted to the port
9677 * as two 30-bit addresses. The other data is a bit marking whether
9678 * the 30-bit address is the high or low address.
9679 * Upcast bmbx aphys to 64bits so shift instruction compiles
9680 * clean on 32 bit machines.
9682 dma_address = &phba->sli4_hba.bmbx.dma_address;
9683 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
9684 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
9685 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
9686 LPFC_BMBX_BIT1_ADDR_HI);
9688 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
9689 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
9690 LPFC_BMBX_BIT1_ADDR_LO);
9695 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
9696 * @phba: pointer to lpfc hba data structure.
9698 * This routine is invoked to teardown the bootstrap mailbox
9699 * region and release all host resources. This routine requires
9700 * the caller to ensure all mailbox commands recovered, no
9701 * additional mailbox comands are sent, and interrupts are disabled
9702 * before calling this routine.
9706 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
9708 dma_free_coherent(&phba->pcidev->dev,
9709 phba->sli4_hba.bmbx.bmbx_size,
9710 phba->sli4_hba.bmbx.dmabuf->virt,
9711 phba->sli4_hba.bmbx.dmabuf->phys);
9713 kfree(phba->sli4_hba.bmbx.dmabuf);
9714 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
9717 static const char * const lpfc_topo_to_str[] = {
9727 #define LINK_FLAGS_DEF 0x0
9728 #define LINK_FLAGS_P2P 0x1
9729 #define LINK_FLAGS_LOOP 0x2
9731 * lpfc_map_topology - Map the topology read from READ_CONFIG
9732 * @phba: pointer to lpfc hba data structure.
9733 * @rd_config: pointer to read config data
9735 * This routine is invoked to map the topology values as read
9736 * from the read config mailbox command. If the persistent
9737 * topology feature is supported, the firmware will provide the
9738 * saved topology information to be used in INIT_LINK
9741 lpfc_map_topology(struct lpfc_hba *phba, struct lpfc_mbx_read_config *rd_config)
9745 ptv = bf_get(lpfc_mbx_rd_conf_ptv, rd_config);
9746 tf = bf_get(lpfc_mbx_rd_conf_tf, rd_config);
9747 pt = bf_get(lpfc_mbx_rd_conf_pt, rd_config);
9749 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9750 "2027 Read Config Data : ptv:0x%x, tf:0x%x pt:0x%x",
9753 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9754 "2019 FW does not support persistent topology "
9755 "Using driver parameter defined value [%s]",
9756 lpfc_topo_to_str[phba->cfg_topology]);
9759 /* FW supports persistent topology - override module parameter value */
9760 phba->hba_flag |= HBA_PERSISTENT_TOPO;
9762 /* if ASIC_GEN_NUM >= 0xC) */
9763 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
9764 LPFC_SLI_INTF_IF_TYPE_6) ||
9765 (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
9766 LPFC_SLI_INTF_FAMILY_G6)) {
9768 phba->cfg_topology = ((pt == LINK_FLAGS_LOOP)
9769 ? FLAGS_TOPOLOGY_MODE_LOOP
9770 : FLAGS_TOPOLOGY_MODE_PT_PT);
9772 phba->hba_flag &= ~HBA_PERSISTENT_TOPO;
9776 /* If topology failover set - pt is '0' or '1' */
9777 phba->cfg_topology = (pt ? FLAGS_TOPOLOGY_MODE_PT_LOOP :
9778 FLAGS_TOPOLOGY_MODE_LOOP_PT);
9780 phba->cfg_topology = ((pt == LINK_FLAGS_P2P)
9781 ? FLAGS_TOPOLOGY_MODE_PT_PT
9782 : FLAGS_TOPOLOGY_MODE_LOOP);
9785 if (phba->hba_flag & HBA_PERSISTENT_TOPO) {
9786 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9787 "2020 Using persistent topology value [%s]",
9788 lpfc_topo_to_str[phba->cfg_topology]);
9790 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9791 "2021 Invalid topology values from FW "
9792 "Using driver parameter defined value [%s]",
9793 lpfc_topo_to_str[phba->cfg_topology]);
9798 * lpfc_sli4_read_config - Get the config parameters.
9799 * @phba: pointer to lpfc hba data structure.
9801 * This routine is invoked to read the configuration parameters from the HBA.
9802 * The configuration parameters are used to set the base and maximum values
9803 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
9804 * allocation for the port.
9808 * -ENOMEM - No available memory
9809 * -EIO - The mailbox failed to complete successfully.
9812 lpfc_sli4_read_config(struct lpfc_hba *phba)
9815 struct lpfc_mbx_read_config *rd_config;
9816 union lpfc_sli4_cfg_shdr *shdr;
9817 uint32_t shdr_status, shdr_add_status;
9818 struct lpfc_mbx_get_func_cfg *get_func_cfg;
9819 struct lpfc_rsrc_desc_fcfcoe *desc;
9821 uint16_t forced_link_speed;
9822 uint32_t if_type, qmin;
9823 int length, i, rc = 0, rc2;
9825 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9827 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9828 "2011 Unable to allocate memory for issuing "
9829 "SLI_CONFIG_SPECIAL mailbox command\n");
9833 lpfc_read_config(phba, pmb);
9835 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9836 if (rc != MBX_SUCCESS) {
9837 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9838 "2012 Mailbox failed , mbxCmd x%x "
9839 "READ_CONFIG, mbxStatus x%x\n",
9840 bf_get(lpfc_mqe_command, &pmb->u.mqe),
9841 bf_get(lpfc_mqe_status, &pmb->u.mqe));
9844 rd_config = &pmb->u.mqe.un.rd_config;
9845 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
9846 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
9847 phba->sli4_hba.lnk_info.lnk_tp =
9848 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
9849 phba->sli4_hba.lnk_info.lnk_no =
9850 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
9851 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9852 "3081 lnk_type:%d, lnk_numb:%d\n",
9853 phba->sli4_hba.lnk_info.lnk_tp,
9854 phba->sli4_hba.lnk_info.lnk_no);
9856 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9857 "3082 Mailbox (x%x) returned ldv:x0\n",
9858 bf_get(lpfc_mqe_command, &pmb->u.mqe));
9859 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
9860 phba->bbcredit_support = 1;
9861 phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
9864 phba->sli4_hba.conf_trunk =
9865 bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
9866 phba->sli4_hba.extents_in_use =
9867 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
9868 phba->sli4_hba.max_cfg_param.max_xri =
9869 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
9870 /* Reduce resource usage in kdump environment */
9871 if (is_kdump_kernel() &&
9872 phba->sli4_hba.max_cfg_param.max_xri > 512)
9873 phba->sli4_hba.max_cfg_param.max_xri = 512;
9874 phba->sli4_hba.max_cfg_param.xri_base =
9875 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
9876 phba->sli4_hba.max_cfg_param.max_vpi =
9877 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
9878 /* Limit the max we support */
9879 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
9880 phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
9881 phba->sli4_hba.max_cfg_param.vpi_base =
9882 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
9883 phba->sli4_hba.max_cfg_param.max_rpi =
9884 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
9885 phba->sli4_hba.max_cfg_param.rpi_base =
9886 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
9887 phba->sli4_hba.max_cfg_param.max_vfi =
9888 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
9889 phba->sli4_hba.max_cfg_param.vfi_base =
9890 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
9891 phba->sli4_hba.max_cfg_param.max_fcfi =
9892 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
9893 phba->sli4_hba.max_cfg_param.max_eq =
9894 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
9895 phba->sli4_hba.max_cfg_param.max_rq =
9896 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
9897 phba->sli4_hba.max_cfg_param.max_wq =
9898 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
9899 phba->sli4_hba.max_cfg_param.max_cq =
9900 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
9901 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
9902 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
9903 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
9904 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
9905 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
9906 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
9907 phba->max_vports = phba->max_vpi;
9909 /* Next decide on FPIN or Signal E2E CGN support
9910 * For congestion alarms and warnings valid combination are:
9911 * 1. FPIN alarms / FPIN warnings
9912 * 2. Signal alarms / Signal warnings
9913 * 3. FPIN alarms / Signal warnings
9914 * 4. Signal alarms / FPIN warnings
9916 * Initialize the adapter frequency to 100 mSecs
9918 phba->cgn_reg_fpin = LPFC_CGN_FPIN_BOTH;
9919 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
9920 phba->cgn_sig_freq = lpfc_fabric_cgn_frequency;
9922 if (lpfc_use_cgn_signal) {
9923 if (bf_get(lpfc_mbx_rd_conf_wcs, rd_config)) {
9924 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY;
9925 phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN;
9927 if (bf_get(lpfc_mbx_rd_conf_acs, rd_config)) {
9928 /* MUST support both alarm and warning
9929 * because EDC does not support alarm alone.
9931 if (phba->cgn_reg_signal !=
9932 EDC_CG_SIG_WARN_ONLY) {
9933 /* Must support both or none */
9934 phba->cgn_reg_fpin = LPFC_CGN_FPIN_BOTH;
9935 phba->cgn_reg_signal =
9936 EDC_CG_SIG_NOTSUPPORTED;
9938 phba->cgn_reg_signal =
9939 EDC_CG_SIG_WARN_ALARM;
9940 phba->cgn_reg_fpin =
9946 /* Set the congestion initial signal and fpin values. */
9947 phba->cgn_init_reg_fpin = phba->cgn_reg_fpin;
9948 phba->cgn_init_reg_signal = phba->cgn_reg_signal;
9950 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
9951 "6446 READ_CONFIG reg_sig x%x reg_fpin:x%x\n",
9952 phba->cgn_reg_signal, phba->cgn_reg_fpin);
9954 lpfc_map_topology(phba, rd_config);
9955 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9956 "2003 cfg params Extents? %d "
9961 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d lmt:x%x\n",
9962 phba->sli4_hba.extents_in_use,
9963 phba->sli4_hba.max_cfg_param.xri_base,
9964 phba->sli4_hba.max_cfg_param.max_xri,
9965 phba->sli4_hba.max_cfg_param.vpi_base,
9966 phba->sli4_hba.max_cfg_param.max_vpi,
9967 phba->sli4_hba.max_cfg_param.vfi_base,
9968 phba->sli4_hba.max_cfg_param.max_vfi,
9969 phba->sli4_hba.max_cfg_param.rpi_base,
9970 phba->sli4_hba.max_cfg_param.max_rpi,
9971 phba->sli4_hba.max_cfg_param.max_fcfi,
9972 phba->sli4_hba.max_cfg_param.max_eq,
9973 phba->sli4_hba.max_cfg_param.max_cq,
9974 phba->sli4_hba.max_cfg_param.max_wq,
9975 phba->sli4_hba.max_cfg_param.max_rq,
9979 * Calculate queue resources based on how
9980 * many WQ/CQ/EQs are available.
9982 qmin = phba->sli4_hba.max_cfg_param.max_wq;
9983 if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
9984 qmin = phba->sli4_hba.max_cfg_param.max_cq;
9985 if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
9986 qmin = phba->sli4_hba.max_cfg_param.max_eq;
9988 * Whats left after this can go toward NVME / FCP.
9989 * The minus 4 accounts for ELS, NVME LS, MBOX
9990 * plus one extra. When configured for
9991 * NVMET, FCP io channel WQs are not created.
9995 /* Check to see if there is enough for NVME */
9996 if ((phba->cfg_irq_chann > qmin) ||
9997 (phba->cfg_hdw_queue > qmin)) {
9998 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9999 "2005 Reducing Queues - "
10000 "FW resource limitation: "
10001 "WQ %d CQ %d EQ %d: min %d: "
10002 "IRQ %d HDWQ %d\n",
10003 phba->sli4_hba.max_cfg_param.max_wq,
10004 phba->sli4_hba.max_cfg_param.max_cq,
10005 phba->sli4_hba.max_cfg_param.max_eq,
10006 qmin, phba->cfg_irq_chann,
10007 phba->cfg_hdw_queue);
10009 if (phba->cfg_irq_chann > qmin)
10010 phba->cfg_irq_chann = qmin;
10011 if (phba->cfg_hdw_queue > qmin)
10012 phba->cfg_hdw_queue = qmin;
10019 /* Update link speed if forced link speed is supported */
10020 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10021 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
10022 forced_link_speed =
10023 bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
10024 if (forced_link_speed) {
10025 phba->hba_flag |= HBA_FORCED_LINK_SPEED;
10027 switch (forced_link_speed) {
10028 case LINK_SPEED_1G:
10029 phba->cfg_link_speed =
10030 LPFC_USER_LINK_SPEED_1G;
10032 case LINK_SPEED_2G:
10033 phba->cfg_link_speed =
10034 LPFC_USER_LINK_SPEED_2G;
10036 case LINK_SPEED_4G:
10037 phba->cfg_link_speed =
10038 LPFC_USER_LINK_SPEED_4G;
10040 case LINK_SPEED_8G:
10041 phba->cfg_link_speed =
10042 LPFC_USER_LINK_SPEED_8G;
10044 case LINK_SPEED_10G:
10045 phba->cfg_link_speed =
10046 LPFC_USER_LINK_SPEED_10G;
10048 case LINK_SPEED_16G:
10049 phba->cfg_link_speed =
10050 LPFC_USER_LINK_SPEED_16G;
10052 case LINK_SPEED_32G:
10053 phba->cfg_link_speed =
10054 LPFC_USER_LINK_SPEED_32G;
10056 case LINK_SPEED_64G:
10057 phba->cfg_link_speed =
10058 LPFC_USER_LINK_SPEED_64G;
10061 phba->cfg_link_speed =
10062 LPFC_USER_LINK_SPEED_AUTO;
10065 lpfc_printf_log(phba, KERN_ERR,
10067 "0047 Unrecognized link "
10069 forced_link_speed);
10070 phba->cfg_link_speed =
10071 LPFC_USER_LINK_SPEED_AUTO;
10076 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
10077 length = phba->sli4_hba.max_cfg_param.max_xri -
10078 lpfc_sli4_get_els_iocb_cnt(phba);
10079 if (phba->cfg_hba_queue_depth > length) {
10080 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10081 "3361 HBA queue depth changed from %d to %d\n",
10082 phba->cfg_hba_queue_depth, length);
10083 phba->cfg_hba_queue_depth = length;
10086 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
10087 LPFC_SLI_INTF_IF_TYPE_2)
10090 /* get the pf# and vf# for SLI4 if_type 2 port */
10091 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
10092 sizeof(struct lpfc_sli4_cfg_mhdr));
10093 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
10094 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
10095 length, LPFC_SLI4_MBX_EMBED);
10097 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
10098 shdr = (union lpfc_sli4_cfg_shdr *)
10099 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
10100 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10101 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10102 if (rc2 || shdr_status || shdr_add_status) {
10103 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10104 "3026 Mailbox failed , mbxCmd x%x "
10105 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
10106 bf_get(lpfc_mqe_command, &pmb->u.mqe),
10107 bf_get(lpfc_mqe_status, &pmb->u.mqe));
10111 /* search for fc_fcoe resrouce descriptor */
10112 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
10114 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
10115 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
10116 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
10117 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
10118 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
10119 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
10122 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
10123 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
10124 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
10125 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
10126 phba->sli4_hba.iov.pf_number =
10127 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
10128 phba->sli4_hba.iov.vf_number =
10129 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
10134 if (i < LPFC_RSRC_DESC_MAX_NUM)
10135 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10136 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
10137 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
10138 phba->sli4_hba.iov.vf_number);
10140 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10141 "3028 GET_FUNCTION_CONFIG: failed to find "
10142 "Resource Descriptor:x%x\n",
10143 LPFC_RSRC_DESC_TYPE_FCFCOE);
10146 mempool_free(pmb, phba->mbox_mem_pool);
10151 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
10152 * @phba: pointer to lpfc hba data structure.
10154 * This routine is invoked to setup the port-side endian order when
10155 * the port if_type is 0. This routine has no function for other
10160 * -ENOMEM - No available memory
10161 * -EIO - The mailbox failed to complete successfully.
10164 lpfc_setup_endian_order(struct lpfc_hba *phba)
10166 LPFC_MBOXQ_t *mboxq;
10167 uint32_t if_type, rc = 0;
10168 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
10169 HOST_ENDIAN_HIGH_WORD1};
10171 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10173 case LPFC_SLI_INTF_IF_TYPE_0:
10174 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
10177 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10178 "0492 Unable to allocate memory for "
10179 "issuing SLI_CONFIG_SPECIAL mailbox "
10185 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
10186 * two words to contain special data values and no other data.
10188 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
10189 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
10190 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10191 if (rc != MBX_SUCCESS) {
10192 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10193 "0493 SLI_CONFIG_SPECIAL mailbox "
10194 "failed with status x%x\n",
10198 mempool_free(mboxq, phba->mbox_mem_pool);
10200 case LPFC_SLI_INTF_IF_TYPE_6:
10201 case LPFC_SLI_INTF_IF_TYPE_2:
10202 case LPFC_SLI_INTF_IF_TYPE_1:
10210 * lpfc_sli4_queue_verify - Verify and update EQ counts
10211 * @phba: pointer to lpfc hba data structure.
10213 * This routine is invoked to check the user settable queue counts for EQs.
10214 * After this routine is called the counts will be set to valid values that
10215 * adhere to the constraints of the system's interrupt vectors and the port's
10220 * -ENOMEM - No available memory
10223 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
10226 * Sanity check for configured queue parameters against the run-time
10227 * device parameters
10230 if (phba->nvmet_support) {
10231 if (phba->cfg_hdw_queue < phba->cfg_nvmet_mrq)
10232 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
10233 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
10234 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
10237 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10238 "2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
10239 phba->cfg_hdw_queue, phba->cfg_irq_chann,
10240 phba->cfg_nvmet_mrq);
10242 /* Get EQ depth from module parameter, fake the default for now */
10243 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
10244 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
10246 /* Get CQ depth from module parameter, fake the default for now */
10247 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
10248 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
10253 lpfc_alloc_io_wq_cq(struct lpfc_hba *phba, int idx)
10255 struct lpfc_queue *qdesc;
10259 cpu = lpfc_find_cpu_handle(phba, idx, LPFC_FIND_BY_HDWQ);
10260 /* Create Fast Path IO CQs */
10261 if (phba->enab_exp_wqcq_pages)
10262 /* Increase the CQ size when WQEs contain an embedded cdb */
10263 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
10264 phba->sli4_hba.cq_esize,
10265 LPFC_CQE_EXP_COUNT, cpu);
10268 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10269 phba->sli4_hba.cq_esize,
10270 phba->sli4_hba.cq_ecount, cpu);
10272 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10273 "0499 Failed allocate fast-path IO CQ (%d)\n",
10277 qdesc->qe_valid = 1;
10279 qdesc->chann = cpu;
10280 phba->sli4_hba.hdwq[idx].io_cq = qdesc;
10282 /* Create Fast Path IO WQs */
10283 if (phba->enab_exp_wqcq_pages) {
10284 /* Increase the WQ size when WQEs contain an embedded cdb */
10285 wqesize = (phba->fcp_embed_io) ?
10286 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
10287 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
10289 LPFC_WQE_EXP_COUNT, cpu);
10291 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10292 phba->sli4_hba.wq_esize,
10293 phba->sli4_hba.wq_ecount, cpu);
10296 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10297 "0503 Failed allocate fast-path IO WQ (%d)\n",
10302 qdesc->chann = cpu;
10303 phba->sli4_hba.hdwq[idx].io_wq = qdesc;
10304 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10309 * lpfc_sli4_queue_create - Create all the SLI4 queues
10310 * @phba: pointer to lpfc hba data structure.
10312 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
10313 * operation. For each SLI4 queue type, the parameters such as queue entry
10314 * count (queue depth) shall be taken from the module parameter. For now,
10315 * we just use some constant number as place holder.
10319 * -ENOMEM - No availble memory
10320 * -EIO - The mailbox failed to complete successfully.
10323 lpfc_sli4_queue_create(struct lpfc_hba *phba)
10325 struct lpfc_queue *qdesc;
10326 int idx, cpu, eqcpu;
10327 struct lpfc_sli4_hdw_queue *qp;
10328 struct lpfc_vector_map_info *cpup;
10329 struct lpfc_vector_map_info *eqcpup;
10330 struct lpfc_eq_intr_info *eqi;
10333 * Create HBA Record arrays.
10334 * Both NVME and FCP will share that same vectors / EQs
10336 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
10337 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
10338 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
10339 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
10340 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
10341 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
10342 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
10343 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
10344 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
10345 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
10347 if (!phba->sli4_hba.hdwq) {
10348 phba->sli4_hba.hdwq = kcalloc(
10349 phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue),
10351 if (!phba->sli4_hba.hdwq) {
10352 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10353 "6427 Failed allocate memory for "
10354 "fast-path Hardware Queue array\n");
10357 /* Prepare hardware queues to take IO buffers */
10358 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10359 qp = &phba->sli4_hba.hdwq[idx];
10360 spin_lock_init(&qp->io_buf_list_get_lock);
10361 spin_lock_init(&qp->io_buf_list_put_lock);
10362 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
10363 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
10364 qp->get_io_bufs = 0;
10365 qp->put_io_bufs = 0;
10366 qp->total_io_bufs = 0;
10367 spin_lock_init(&qp->abts_io_buf_list_lock);
10368 INIT_LIST_HEAD(&qp->lpfc_abts_io_buf_list);
10369 qp->abts_scsi_io_bufs = 0;
10370 qp->abts_nvme_io_bufs = 0;
10371 INIT_LIST_HEAD(&qp->sgl_list);
10372 INIT_LIST_HEAD(&qp->cmd_rsp_buf_list);
10373 spin_lock_init(&qp->hdwq_lock);
10377 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10378 if (phba->nvmet_support) {
10379 phba->sli4_hba.nvmet_cqset = kcalloc(
10380 phba->cfg_nvmet_mrq,
10381 sizeof(struct lpfc_queue *),
10383 if (!phba->sli4_hba.nvmet_cqset) {
10384 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10385 "3121 Fail allocate memory for "
10386 "fast-path CQ set array\n");
10389 phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
10390 phba->cfg_nvmet_mrq,
10391 sizeof(struct lpfc_queue *),
10393 if (!phba->sli4_hba.nvmet_mrq_hdr) {
10394 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10395 "3122 Fail allocate memory for "
10396 "fast-path RQ set hdr array\n");
10399 phba->sli4_hba.nvmet_mrq_data = kcalloc(
10400 phba->cfg_nvmet_mrq,
10401 sizeof(struct lpfc_queue *),
10403 if (!phba->sli4_hba.nvmet_mrq_data) {
10404 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10405 "3124 Fail allocate memory for "
10406 "fast-path RQ set data array\n");
10412 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
10414 /* Create HBA Event Queues (EQs) */
10415 for_each_present_cpu(cpu) {
10416 /* We only want to create 1 EQ per vector, even though
10417 * multiple CPUs might be using that vector. so only
10418 * selects the CPUs that are LPFC_CPU_FIRST_IRQ.
10420 cpup = &phba->sli4_hba.cpu_map[cpu];
10421 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
10424 /* Get a ptr to the Hardware Queue associated with this CPU */
10425 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
10427 /* Allocate an EQ */
10428 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10429 phba->sli4_hba.eq_esize,
10430 phba->sli4_hba.eq_ecount, cpu);
10432 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10433 "0497 Failed allocate EQ (%d)\n",
10437 qdesc->qe_valid = 1;
10438 qdesc->hdwq = cpup->hdwq;
10439 qdesc->chann = cpu; /* First CPU this EQ is affinitized to */
10440 qdesc->last_cpu = qdesc->chann;
10442 /* Save the allocated EQ in the Hardware Queue */
10443 qp->hba_eq = qdesc;
10445 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
10446 list_add(&qdesc->cpu_list, &eqi->list);
10449 /* Now we need to populate the other Hardware Queues, that share
10450 * an IRQ vector, with the associated EQ ptr.
10452 for_each_present_cpu(cpu) {
10453 cpup = &phba->sli4_hba.cpu_map[cpu];
10455 /* Check for EQ already allocated in previous loop */
10456 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
10459 /* Check for multiple CPUs per hdwq */
10460 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
10464 /* We need to share an EQ for this hdwq */
10465 eqcpu = lpfc_find_cpu_handle(phba, cpup->eq, LPFC_FIND_BY_EQ);
10466 eqcpup = &phba->sli4_hba.cpu_map[eqcpu];
10467 qp->hba_eq = phba->sli4_hba.hdwq[eqcpup->hdwq].hba_eq;
10470 /* Allocate IO Path SLI4 CQ/WQs */
10471 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10472 if (lpfc_alloc_io_wq_cq(phba, idx))
10476 if (phba->nvmet_support) {
10477 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
10478 cpu = lpfc_find_cpu_handle(phba, idx,
10479 LPFC_FIND_BY_HDWQ);
10480 qdesc = lpfc_sli4_queue_alloc(phba,
10481 LPFC_DEFAULT_PAGE_SIZE,
10482 phba->sli4_hba.cq_esize,
10483 phba->sli4_hba.cq_ecount,
10486 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10487 "3142 Failed allocate NVME "
10488 "CQ Set (%d)\n", idx);
10491 qdesc->qe_valid = 1;
10493 qdesc->chann = cpu;
10494 phba->sli4_hba.nvmet_cqset[idx] = qdesc;
10499 * Create Slow Path Completion Queues (CQs)
10502 cpu = lpfc_find_cpu_handle(phba, 0, LPFC_FIND_BY_EQ);
10503 /* Create slow-path Mailbox Command Complete Queue */
10504 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10505 phba->sli4_hba.cq_esize,
10506 phba->sli4_hba.cq_ecount, cpu);
10508 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10509 "0500 Failed allocate slow-path mailbox CQ\n");
10512 qdesc->qe_valid = 1;
10513 phba->sli4_hba.mbx_cq = qdesc;
10515 /* Create slow-path ELS Complete Queue */
10516 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10517 phba->sli4_hba.cq_esize,
10518 phba->sli4_hba.cq_ecount, cpu);
10520 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10521 "0501 Failed allocate slow-path ELS CQ\n");
10524 qdesc->qe_valid = 1;
10525 qdesc->chann = cpu;
10526 phba->sli4_hba.els_cq = qdesc;
10530 * Create Slow Path Work Queues (WQs)
10533 /* Create Mailbox Command Queue */
10535 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10536 phba->sli4_hba.mq_esize,
10537 phba->sli4_hba.mq_ecount, cpu);
10539 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10540 "0505 Failed allocate slow-path MQ\n");
10543 qdesc->chann = cpu;
10544 phba->sli4_hba.mbx_wq = qdesc;
10547 * Create ELS Work Queues
10550 /* Create slow-path ELS Work Queue */
10551 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10552 phba->sli4_hba.wq_esize,
10553 phba->sli4_hba.wq_ecount, cpu);
10555 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10556 "0504 Failed allocate slow-path ELS WQ\n");
10559 qdesc->chann = cpu;
10560 phba->sli4_hba.els_wq = qdesc;
10561 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10563 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10564 /* Create NVME LS Complete Queue */
10565 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10566 phba->sli4_hba.cq_esize,
10567 phba->sli4_hba.cq_ecount, cpu);
10569 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10570 "6079 Failed allocate NVME LS CQ\n");
10573 qdesc->chann = cpu;
10574 qdesc->qe_valid = 1;
10575 phba->sli4_hba.nvmels_cq = qdesc;
10577 /* Create NVME LS Work Queue */
10578 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10579 phba->sli4_hba.wq_esize,
10580 phba->sli4_hba.wq_ecount, cpu);
10582 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10583 "6080 Failed allocate NVME LS WQ\n");
10586 qdesc->chann = cpu;
10587 phba->sli4_hba.nvmels_wq = qdesc;
10588 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10592 * Create Receive Queue (RQ)
10595 /* Create Receive Queue for header */
10596 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10597 phba->sli4_hba.rq_esize,
10598 phba->sli4_hba.rq_ecount, cpu);
10600 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10601 "0506 Failed allocate receive HRQ\n");
10604 phba->sli4_hba.hdr_rq = qdesc;
10606 /* Create Receive Queue for data */
10607 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10608 phba->sli4_hba.rq_esize,
10609 phba->sli4_hba.rq_ecount, cpu);
10611 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10612 "0507 Failed allocate receive DRQ\n");
10615 phba->sli4_hba.dat_rq = qdesc;
10617 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
10618 phba->nvmet_support) {
10619 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
10620 cpu = lpfc_find_cpu_handle(phba, idx,
10621 LPFC_FIND_BY_HDWQ);
10622 /* Create NVMET Receive Queue for header */
10623 qdesc = lpfc_sli4_queue_alloc(phba,
10624 LPFC_DEFAULT_PAGE_SIZE,
10625 phba->sli4_hba.rq_esize,
10626 LPFC_NVMET_RQE_DEF_COUNT,
10629 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10630 "3146 Failed allocate "
10635 phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
10637 /* Only needed for header of RQ pair */
10638 qdesc->rqbp = kzalloc_node(sizeof(*qdesc->rqbp),
10641 if (qdesc->rqbp == NULL) {
10642 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10643 "6131 Failed allocate "
10648 /* Put list in known state in case driver load fails. */
10649 INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
10651 /* Create NVMET Receive Queue for data */
10652 qdesc = lpfc_sli4_queue_alloc(phba,
10653 LPFC_DEFAULT_PAGE_SIZE,
10654 phba->sli4_hba.rq_esize,
10655 LPFC_NVMET_RQE_DEF_COUNT,
10658 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10659 "3156 Failed allocate "
10664 phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
10668 /* Clear NVME stats */
10669 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10670 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10671 memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
10672 sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
10676 /* Clear SCSI stats */
10677 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
10678 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10679 memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
10680 sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
10687 lpfc_sli4_queue_destroy(phba);
10692 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
10695 lpfc_sli4_queue_free(*qp);
10701 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
10708 for (idx = 0; idx < max; idx++)
10709 __lpfc_sli4_release_queue(&(*qs)[idx]);
10716 lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
10718 struct lpfc_sli4_hdw_queue *hdwq;
10719 struct lpfc_queue *eq;
10722 hdwq = phba->sli4_hba.hdwq;
10724 /* Loop thru all Hardware Queues */
10725 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10726 /* Free the CQ/WQ corresponding to the Hardware Queue */
10727 lpfc_sli4_queue_free(hdwq[idx].io_cq);
10728 lpfc_sli4_queue_free(hdwq[idx].io_wq);
10729 hdwq[idx].hba_eq = NULL;
10730 hdwq[idx].io_cq = NULL;
10731 hdwq[idx].io_wq = NULL;
10732 if (phba->cfg_xpsgl && !phba->nvmet_support)
10733 lpfc_free_sgl_per_hdwq(phba, &hdwq[idx]);
10734 lpfc_free_cmd_rsp_buf_per_hdwq(phba, &hdwq[idx]);
10736 /* Loop thru all IRQ vectors */
10737 for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
10738 /* Free the EQ corresponding to the IRQ vector */
10739 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
10740 lpfc_sli4_queue_free(eq);
10741 phba->sli4_hba.hba_eq_hdl[idx].eq = NULL;
10746 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
10747 * @phba: pointer to lpfc hba data structure.
10749 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
10754 * -ENOMEM - No available memory
10755 * -EIO - The mailbox failed to complete successfully.
10758 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
10761 * Set FREE_INIT before beginning to free the queues.
10762 * Wait until the users of queues to acknowledge to
10763 * release queues by clearing FREE_WAIT.
10765 spin_lock_irq(&phba->hbalock);
10766 phba->sli.sli_flag |= LPFC_QUEUE_FREE_INIT;
10767 while (phba->sli.sli_flag & LPFC_QUEUE_FREE_WAIT) {
10768 spin_unlock_irq(&phba->hbalock);
10770 spin_lock_irq(&phba->hbalock);
10772 spin_unlock_irq(&phba->hbalock);
10774 lpfc_sli4_cleanup_poll_list(phba);
10776 /* Release HBA eqs */
10777 if (phba->sli4_hba.hdwq)
10778 lpfc_sli4_release_hdwq(phba);
10780 if (phba->nvmet_support) {
10781 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
10782 phba->cfg_nvmet_mrq);
10784 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
10785 phba->cfg_nvmet_mrq);
10786 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
10787 phba->cfg_nvmet_mrq);
10790 /* Release mailbox command work queue */
10791 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
10793 /* Release ELS work queue */
10794 __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
10796 /* Release ELS work queue */
10797 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
10799 /* Release unsolicited receive queue */
10800 __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
10801 __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
10803 /* Release ELS complete queue */
10804 __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
10806 /* Release NVME LS complete queue */
10807 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
10809 /* Release mailbox command complete queue */
10810 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
10812 /* Everything on this list has been freed */
10813 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
10815 /* Done with freeing the queues */
10816 spin_lock_irq(&phba->hbalock);
10817 phba->sli.sli_flag &= ~LPFC_QUEUE_FREE_INIT;
10818 spin_unlock_irq(&phba->hbalock);
10822 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
10824 struct lpfc_rqb *rqbp;
10825 struct lpfc_dmabuf *h_buf;
10826 struct rqb_dmabuf *rqb_buffer;
10829 while (!list_empty(&rqbp->rqb_buffer_list)) {
10830 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
10831 struct lpfc_dmabuf, list);
10833 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
10834 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
10835 rqbp->buffer_count--;
10841 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
10842 struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
10843 int qidx, uint32_t qtype)
10845 struct lpfc_sli_ring *pring;
10848 if (!eq || !cq || !wq) {
10849 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10850 "6085 Fast-path %s (%d) not allocated\n",
10851 ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
10855 /* create the Cq first */
10856 rc = lpfc_cq_create(phba, cq, eq,
10857 (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
10859 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10860 "6086 Failed setup of CQ (%d), rc = 0x%x\n",
10861 qidx, (uint32_t)rc);
10865 if (qtype != LPFC_MBOX) {
10866 /* Setup cq_map for fast lookup */
10868 *cq_map = cq->queue_id;
10870 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10871 "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
10872 qidx, cq->queue_id, qidx, eq->queue_id);
10874 /* create the wq */
10875 rc = lpfc_wq_create(phba, wq, cq, qtype);
10877 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10878 "4618 Fail setup fastpath WQ (%d), rc = 0x%x\n",
10879 qidx, (uint32_t)rc);
10880 /* no need to tear down cq - caller will do so */
10884 /* Bind this CQ/WQ to the NVME ring */
10886 pring->sli.sli4.wqp = (void *)wq;
10889 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10890 "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
10891 qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
10893 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
10895 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10896 "0539 Failed setup of slow-path MQ: "
10897 "rc = 0x%x\n", rc);
10898 /* no need to tear down cq - caller will do so */
10902 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10903 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
10904 phba->sli4_hba.mbx_wq->queue_id,
10905 phba->sli4_hba.mbx_cq->queue_id);
10912 * lpfc_setup_cq_lookup - Setup the CQ lookup table
10913 * @phba: pointer to lpfc hba data structure.
10915 * This routine will populate the cq_lookup table by all
10916 * available CQ queue_id's.
10919 lpfc_setup_cq_lookup(struct lpfc_hba *phba)
10921 struct lpfc_queue *eq, *childq;
10924 memset(phba->sli4_hba.cq_lookup, 0,
10925 (sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
10926 /* Loop thru all IRQ vectors */
10927 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
10928 /* Get the EQ corresponding to the IRQ vector */
10929 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
10932 /* Loop through all CQs associated with that EQ */
10933 list_for_each_entry(childq, &eq->child_list, list) {
10934 if (childq->queue_id > phba->sli4_hba.cq_max)
10936 if (childq->subtype == LPFC_IO)
10937 phba->sli4_hba.cq_lookup[childq->queue_id] =
10944 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
10945 * @phba: pointer to lpfc hba data structure.
10947 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
10952 * -ENOMEM - No available memory
10953 * -EIO - The mailbox failed to complete successfully.
10956 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
10958 uint32_t shdr_status, shdr_add_status;
10959 union lpfc_sli4_cfg_shdr *shdr;
10960 struct lpfc_vector_map_info *cpup;
10961 struct lpfc_sli4_hdw_queue *qp;
10962 LPFC_MBOXQ_t *mboxq;
10964 uint32_t length, usdelay;
10967 /* Check for dual-ULP support */
10968 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10970 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10971 "3249 Unable to allocate memory for "
10972 "QUERY_FW_CFG mailbox command\n");
10975 length = (sizeof(struct lpfc_mbx_query_fw_config) -
10976 sizeof(struct lpfc_sli4_cfg_mhdr));
10977 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10978 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
10979 length, LPFC_SLI4_MBX_EMBED);
10981 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10983 shdr = (union lpfc_sli4_cfg_shdr *)
10984 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
10985 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10986 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10987 if (shdr_status || shdr_add_status || rc) {
10988 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10989 "3250 QUERY_FW_CFG mailbox failed with status "
10990 "x%x add_status x%x, mbx status x%x\n",
10991 shdr_status, shdr_add_status, rc);
10992 mempool_free(mboxq, phba->mbox_mem_pool);
10997 phba->sli4_hba.fw_func_mode =
10998 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
10999 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
11000 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
11001 phba->sli4_hba.physical_port =
11002 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
11003 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11004 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
11005 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
11006 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
11008 mempool_free(mboxq, phba->mbox_mem_pool);
11011 * Set up HBA Event Queues (EQs)
11013 qp = phba->sli4_hba.hdwq;
11015 /* Set up HBA event queue */
11017 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11018 "3147 Fast-path EQs not allocated\n");
11023 /* Loop thru all IRQ vectors */
11024 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
11025 /* Create HBA Event Queues (EQs) in order */
11026 for_each_present_cpu(cpu) {
11027 cpup = &phba->sli4_hba.cpu_map[cpu];
11029 /* Look for the CPU thats using that vector with
11030 * LPFC_CPU_FIRST_IRQ set.
11032 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
11034 if (qidx != cpup->eq)
11037 /* Create an EQ for that vector */
11038 rc = lpfc_eq_create(phba, qp[cpup->hdwq].hba_eq,
11039 phba->cfg_fcp_imax);
11041 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11042 "0523 Failed setup of fast-path"
11043 " EQ (%d), rc = 0x%x\n",
11044 cpup->eq, (uint32_t)rc);
11048 /* Save the EQ for that vector in the hba_eq_hdl */
11049 phba->sli4_hba.hba_eq_hdl[cpup->eq].eq =
11050 qp[cpup->hdwq].hba_eq;
11052 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11053 "2584 HBA EQ setup: queue[%d]-id=%d\n",
11055 qp[cpup->hdwq].hba_eq->queue_id);
11059 /* Loop thru all Hardware Queues */
11060 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
11061 cpu = lpfc_find_cpu_handle(phba, qidx, LPFC_FIND_BY_HDWQ);
11062 cpup = &phba->sli4_hba.cpu_map[cpu];
11064 /* Create the CQ/WQ corresponding to the Hardware Queue */
11065 rc = lpfc_create_wq_cq(phba,
11066 phba->sli4_hba.hdwq[cpup->hdwq].hba_eq,
11069 &phba->sli4_hba.hdwq[qidx].io_cq_map,
11073 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11074 "0535 Failed to setup fastpath "
11075 "IO WQ/CQ (%d), rc = 0x%x\n",
11076 qidx, (uint32_t)rc);
11082 * Set up Slow Path Complete Queues (CQs)
11085 /* Set up slow-path MBOX CQ/MQ */
11087 if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
11088 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11089 "0528 %s not allocated\n",
11090 phba->sli4_hba.mbx_cq ?
11091 "Mailbox WQ" : "Mailbox CQ");
11096 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
11097 phba->sli4_hba.mbx_cq,
11098 phba->sli4_hba.mbx_wq,
11099 NULL, 0, LPFC_MBOX);
11101 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11102 "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
11106 if (phba->nvmet_support) {
11107 if (!phba->sli4_hba.nvmet_cqset) {
11108 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11109 "3165 Fast-path NVME CQ Set "
11110 "array not allocated\n");
11114 if (phba->cfg_nvmet_mrq > 1) {
11115 rc = lpfc_cq_create_set(phba,
11116 phba->sli4_hba.nvmet_cqset,
11118 LPFC_WCQ, LPFC_NVMET);
11120 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11121 "3164 Failed setup of NVME CQ "
11122 "Set, rc = 0x%x\n",
11127 /* Set up NVMET Receive Complete Queue */
11128 rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
11130 LPFC_WCQ, LPFC_NVMET);
11132 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11133 "6089 Failed setup NVMET CQ: "
11134 "rc = 0x%x\n", (uint32_t)rc);
11137 phba->sli4_hba.nvmet_cqset[0]->chann = 0;
11139 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11140 "6090 NVMET CQ setup: cq-id=%d, "
11141 "parent eq-id=%d\n",
11142 phba->sli4_hba.nvmet_cqset[0]->queue_id,
11143 qp[0].hba_eq->queue_id);
11147 /* Set up slow-path ELS WQ/CQ */
11148 if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
11149 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11150 "0530 ELS %s not allocated\n",
11151 phba->sli4_hba.els_cq ? "WQ" : "CQ");
11155 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
11156 phba->sli4_hba.els_cq,
11157 phba->sli4_hba.els_wq,
11158 NULL, 0, LPFC_ELS);
11160 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11161 "0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
11165 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11166 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
11167 phba->sli4_hba.els_wq->queue_id,
11168 phba->sli4_hba.els_cq->queue_id);
11170 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11171 /* Set up NVME LS Complete Queue */
11172 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
11173 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11174 "6091 LS %s not allocated\n",
11175 phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
11179 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
11180 phba->sli4_hba.nvmels_cq,
11181 phba->sli4_hba.nvmels_wq,
11182 NULL, 0, LPFC_NVME_LS);
11184 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11185 "0526 Failed setup of NVVME LS WQ/CQ: "
11186 "rc = 0x%x\n", (uint32_t)rc);
11190 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11191 "6096 ELS WQ setup: wq-id=%d, "
11192 "parent cq-id=%d\n",
11193 phba->sli4_hba.nvmels_wq->queue_id,
11194 phba->sli4_hba.nvmels_cq->queue_id);
11198 * Create NVMET Receive Queue (RQ)
11200 if (phba->nvmet_support) {
11201 if ((!phba->sli4_hba.nvmet_cqset) ||
11202 (!phba->sli4_hba.nvmet_mrq_hdr) ||
11203 (!phba->sli4_hba.nvmet_mrq_data)) {
11204 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11205 "6130 MRQ CQ Queues not "
11210 if (phba->cfg_nvmet_mrq > 1) {
11211 rc = lpfc_mrq_create(phba,
11212 phba->sli4_hba.nvmet_mrq_hdr,
11213 phba->sli4_hba.nvmet_mrq_data,
11214 phba->sli4_hba.nvmet_cqset,
11217 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11218 "6098 Failed setup of NVMET "
11219 "MRQ: rc = 0x%x\n",
11225 rc = lpfc_rq_create(phba,
11226 phba->sli4_hba.nvmet_mrq_hdr[0],
11227 phba->sli4_hba.nvmet_mrq_data[0],
11228 phba->sli4_hba.nvmet_cqset[0],
11231 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11232 "6057 Failed setup of NVMET "
11233 "Receive Queue: rc = 0x%x\n",
11239 phba, KERN_INFO, LOG_INIT,
11240 "6099 NVMET RQ setup: hdr-rq-id=%d, "
11241 "dat-rq-id=%d parent cq-id=%d\n",
11242 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
11243 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
11244 phba->sli4_hba.nvmet_cqset[0]->queue_id);
11249 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
11250 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11251 "0540 Receive Queue not allocated\n");
11256 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
11257 phba->sli4_hba.els_cq, LPFC_USOL);
11259 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11260 "0541 Failed setup of Receive Queue: "
11261 "rc = 0x%x\n", (uint32_t)rc);
11265 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11266 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
11267 "parent cq-id=%d\n",
11268 phba->sli4_hba.hdr_rq->queue_id,
11269 phba->sli4_hba.dat_rq->queue_id,
11270 phba->sli4_hba.els_cq->queue_id);
11272 if (phba->cfg_fcp_imax)
11273 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
11277 for (qidx = 0; qidx < phba->cfg_irq_chann;
11278 qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
11279 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
11282 if (phba->sli4_hba.cq_max) {
11283 kfree(phba->sli4_hba.cq_lookup);
11284 phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1),
11285 sizeof(struct lpfc_queue *), GFP_KERNEL);
11286 if (!phba->sli4_hba.cq_lookup) {
11287 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11288 "0549 Failed setup of CQ Lookup table: "
11289 "size 0x%x\n", phba->sli4_hba.cq_max);
11293 lpfc_setup_cq_lookup(phba);
11298 lpfc_sli4_queue_unset(phba);
11304 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
11305 * @phba: pointer to lpfc hba data structure.
11307 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
11312 * -ENOMEM - No available memory
11313 * -EIO - The mailbox failed to complete successfully.
11316 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
11318 struct lpfc_sli4_hdw_queue *qp;
11319 struct lpfc_queue *eq;
11322 /* Unset mailbox command work queue */
11323 if (phba->sli4_hba.mbx_wq)
11324 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
11326 /* Unset NVME LS work queue */
11327 if (phba->sli4_hba.nvmels_wq)
11328 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
11330 /* Unset ELS work queue */
11331 if (phba->sli4_hba.els_wq)
11332 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
11334 /* Unset unsolicited receive queue */
11335 if (phba->sli4_hba.hdr_rq)
11336 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
11337 phba->sli4_hba.dat_rq);
11339 /* Unset mailbox command complete queue */
11340 if (phba->sli4_hba.mbx_cq)
11341 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
11343 /* Unset ELS complete queue */
11344 if (phba->sli4_hba.els_cq)
11345 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
11347 /* Unset NVME LS complete queue */
11348 if (phba->sli4_hba.nvmels_cq)
11349 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
11351 if (phba->nvmet_support) {
11352 /* Unset NVMET MRQ queue */
11353 if (phba->sli4_hba.nvmet_mrq_hdr) {
11354 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
11357 phba->sli4_hba.nvmet_mrq_hdr[qidx],
11358 phba->sli4_hba.nvmet_mrq_data[qidx]);
11361 /* Unset NVMET CQ Set complete queue */
11362 if (phba->sli4_hba.nvmet_cqset) {
11363 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
11365 phba, phba->sli4_hba.nvmet_cqset[qidx]);
11369 /* Unset fast-path SLI4 queues */
11370 if (phba->sli4_hba.hdwq) {
11371 /* Loop thru all Hardware Queues */
11372 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
11373 /* Destroy the CQ/WQ corresponding to Hardware Queue */
11374 qp = &phba->sli4_hba.hdwq[qidx];
11375 lpfc_wq_destroy(phba, qp->io_wq);
11376 lpfc_cq_destroy(phba, qp->io_cq);
11378 /* Loop thru all IRQ vectors */
11379 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
11380 /* Destroy the EQ corresponding to the IRQ vector */
11381 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
11382 lpfc_eq_destroy(phba, eq);
11386 kfree(phba->sli4_hba.cq_lookup);
11387 phba->sli4_hba.cq_lookup = NULL;
11388 phba->sli4_hba.cq_max = 0;
11392 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
11393 * @phba: pointer to lpfc hba data structure.
11395 * This routine is invoked to allocate and set up a pool of completion queue
11396 * events. The body of the completion queue event is a completion queue entry
11397 * CQE. For now, this pool is used for the interrupt service routine to queue
11398 * the following HBA completion queue events for the worker thread to process:
11399 * - Mailbox asynchronous events
11400 * - Receive queue completion unsolicited events
11401 * Later, this can be used for all the slow-path events.
11405 * -ENOMEM - No available memory
11408 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
11410 struct lpfc_cq_event *cq_event;
11413 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
11414 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
11416 goto out_pool_create_fail;
11417 list_add_tail(&cq_event->list,
11418 &phba->sli4_hba.sp_cqe_event_pool);
11422 out_pool_create_fail:
11423 lpfc_sli4_cq_event_pool_destroy(phba);
11428 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
11429 * @phba: pointer to lpfc hba data structure.
11431 * This routine is invoked to free the pool of completion queue events at
11432 * driver unload time. Note that, it is the responsibility of the driver
11433 * cleanup routine to free all the outstanding completion-queue events
11434 * allocated from this pool back into the pool before invoking this routine
11435 * to destroy the pool.
11438 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
11440 struct lpfc_cq_event *cq_event, *next_cq_event;
11442 list_for_each_entry_safe(cq_event, next_cq_event,
11443 &phba->sli4_hba.sp_cqe_event_pool, list) {
11444 list_del(&cq_event->list);
11450 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
11451 * @phba: pointer to lpfc hba data structure.
11453 * This routine is the lock free version of the API invoked to allocate a
11454 * completion-queue event from the free pool.
11456 * Return: Pointer to the newly allocated completion-queue event if successful
11459 struct lpfc_cq_event *
11460 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
11462 struct lpfc_cq_event *cq_event = NULL;
11464 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
11465 struct lpfc_cq_event, list);
11470 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
11471 * @phba: pointer to lpfc hba data structure.
11473 * This routine is the lock version of the API invoked to allocate a
11474 * completion-queue event from the free pool.
11476 * Return: Pointer to the newly allocated completion-queue event if successful
11479 struct lpfc_cq_event *
11480 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
11482 struct lpfc_cq_event *cq_event;
11483 unsigned long iflags;
11485 spin_lock_irqsave(&phba->hbalock, iflags);
11486 cq_event = __lpfc_sli4_cq_event_alloc(phba);
11487 spin_unlock_irqrestore(&phba->hbalock, iflags);
11492 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
11493 * @phba: pointer to lpfc hba data structure.
11494 * @cq_event: pointer to the completion queue event to be freed.
11496 * This routine is the lock free version of the API invoked to release a
11497 * completion-queue event back into the free pool.
11500 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
11501 struct lpfc_cq_event *cq_event)
11503 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
11507 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
11508 * @phba: pointer to lpfc hba data structure.
11509 * @cq_event: pointer to the completion queue event to be freed.
11511 * This routine is the lock version of the API invoked to release a
11512 * completion-queue event back into the free pool.
11515 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
11516 struct lpfc_cq_event *cq_event)
11518 unsigned long iflags;
11519 spin_lock_irqsave(&phba->hbalock, iflags);
11520 __lpfc_sli4_cq_event_release(phba, cq_event);
11521 spin_unlock_irqrestore(&phba->hbalock, iflags);
11525 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
11526 * @phba: pointer to lpfc hba data structure.
11528 * This routine is to free all the pending completion-queue events to the
11529 * back into the free pool for device reset.
11532 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
11534 LIST_HEAD(cq_event_list);
11535 struct lpfc_cq_event *cq_event;
11536 unsigned long iflags;
11538 /* Retrieve all the pending WCQEs from pending WCQE lists */
11540 /* Pending ELS XRI abort events */
11541 spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
11542 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
11544 spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
11546 /* Pending asynnc events */
11547 spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
11548 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
11550 spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
11552 while (!list_empty(&cq_event_list)) {
11553 list_remove_head(&cq_event_list, cq_event,
11554 struct lpfc_cq_event, list);
11555 lpfc_sli4_cq_event_release(phba, cq_event);
11560 * lpfc_pci_function_reset - Reset pci function.
11561 * @phba: pointer to lpfc hba data structure.
11563 * This routine is invoked to request a PCI function reset. It will destroys
11564 * all resources assigned to the PCI function which originates this request.
11568 * -ENOMEM - No available memory
11569 * -EIO - The mailbox failed to complete successfully.
11572 lpfc_pci_function_reset(struct lpfc_hba *phba)
11574 LPFC_MBOXQ_t *mboxq;
11575 uint32_t rc = 0, if_type;
11576 uint32_t shdr_status, shdr_add_status;
11578 uint32_t port_reset = 0;
11579 union lpfc_sli4_cfg_shdr *shdr;
11580 struct lpfc_register reg_data;
11583 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11585 case LPFC_SLI_INTF_IF_TYPE_0:
11586 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
11589 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11590 "0494 Unable to allocate memory for "
11591 "issuing SLI_FUNCTION_RESET mailbox "
11596 /* Setup PCI function reset mailbox-ioctl command */
11597 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
11598 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
11599 LPFC_SLI4_MBX_EMBED);
11600 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11601 shdr = (union lpfc_sli4_cfg_shdr *)
11602 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
11603 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11604 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
11606 mempool_free(mboxq, phba->mbox_mem_pool);
11607 if (shdr_status || shdr_add_status || rc) {
11608 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11609 "0495 SLI_FUNCTION_RESET mailbox "
11610 "failed with status x%x add_status x%x,"
11611 " mbx status x%x\n",
11612 shdr_status, shdr_add_status, rc);
11616 case LPFC_SLI_INTF_IF_TYPE_2:
11617 case LPFC_SLI_INTF_IF_TYPE_6:
11620 * Poll the Port Status Register and wait for RDY for
11621 * up to 30 seconds. If the port doesn't respond, treat
11624 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
11625 if (lpfc_readl(phba->sli4_hba.u.if_type2.
11626 STATUSregaddr, ®_data.word0)) {
11630 if (bf_get(lpfc_sliport_status_rdy, ®_data))
11635 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) {
11636 phba->work_status[0] = readl(
11637 phba->sli4_hba.u.if_type2.ERR1regaddr);
11638 phba->work_status[1] = readl(
11639 phba->sli4_hba.u.if_type2.ERR2regaddr);
11640 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11641 "2890 Port not ready, port status reg "
11642 "0x%x error 1=0x%x, error 2=0x%x\n",
11644 phba->work_status[0],
11645 phba->work_status[1]);
11650 if (bf_get(lpfc_sliport_status_pldv, ®_data))
11651 lpfc_pldv_detect = true;
11655 * Reset the port now
11657 reg_data.word0 = 0;
11658 bf_set(lpfc_sliport_ctrl_end, ®_data,
11659 LPFC_SLIPORT_LITTLE_ENDIAN);
11660 bf_set(lpfc_sliport_ctrl_ip, ®_data,
11661 LPFC_SLIPORT_INIT_PORT);
11662 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
11665 pci_read_config_word(phba->pcidev,
11666 PCI_DEVICE_ID, &devid);
11671 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) {
11677 case LPFC_SLI_INTF_IF_TYPE_1:
11683 /* Catch the not-ready port failure after a port reset. */
11685 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11686 "3317 HBA not functional: IP Reset Failed "
11687 "try: echo fw_reset > board_mode\n");
11695 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
11696 * @phba: pointer to lpfc hba data structure.
11698 * This routine is invoked to set up the PCI device memory space for device
11699 * with SLI-4 interface spec.
11703 * other values - error
11706 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
11708 struct pci_dev *pdev = phba->pcidev;
11709 unsigned long bar0map_len, bar1map_len, bar2map_len;
11716 /* Set the device DMA mask size */
11717 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
11719 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
11724 * The BARs and register set definitions and offset locations are
11725 * dependent on the if_type.
11727 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
11728 &phba->sli4_hba.sli_intf.word0)) {
11732 /* There is no SLI3 failback for SLI4 devices. */
11733 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
11734 LPFC_SLI_INTF_VALID) {
11735 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11736 "2894 SLI_INTF reg contents invalid "
11737 "sli_intf reg 0x%x\n",
11738 phba->sli4_hba.sli_intf.word0);
11742 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11744 * Get the bus address of SLI4 device Bar regions and the
11745 * number of bytes required by each mapping. The mapping of the
11746 * particular PCI BARs regions is dependent on the type of
11749 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
11750 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
11751 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
11754 * Map SLI4 PCI Config Space Register base to a kernel virtual
11757 phba->sli4_hba.conf_regs_memmap_p =
11758 ioremap(phba->pci_bar0_map, bar0map_len);
11759 if (!phba->sli4_hba.conf_regs_memmap_p) {
11760 dev_printk(KERN_ERR, &pdev->dev,
11761 "ioremap failed for SLI4 PCI config "
11765 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
11766 /* Set up BAR0 PCI config space register memory map */
11767 lpfc_sli4_bar0_register_memmap(phba, if_type);
11769 phba->pci_bar0_map = pci_resource_start(pdev, 1);
11770 bar0map_len = pci_resource_len(pdev, 1);
11771 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
11772 dev_printk(KERN_ERR, &pdev->dev,
11773 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
11776 phba->sli4_hba.conf_regs_memmap_p =
11777 ioremap(phba->pci_bar0_map, bar0map_len);
11778 if (!phba->sli4_hba.conf_regs_memmap_p) {
11779 dev_printk(KERN_ERR, &pdev->dev,
11780 "ioremap failed for SLI4 PCI config "
11784 lpfc_sli4_bar0_register_memmap(phba, if_type);
11787 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
11788 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
11790 * Map SLI4 if type 0 HBA Control Register base to a
11791 * kernel virtual address and setup the registers.
11793 phba->pci_bar1_map = pci_resource_start(pdev,
11795 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
11796 phba->sli4_hba.ctrl_regs_memmap_p =
11797 ioremap(phba->pci_bar1_map,
11799 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
11800 dev_err(&pdev->dev,
11801 "ioremap failed for SLI4 HBA "
11802 "control registers.\n");
11804 goto out_iounmap_conf;
11806 phba->pci_bar2_memmap_p =
11807 phba->sli4_hba.ctrl_regs_memmap_p;
11808 lpfc_sli4_bar1_register_memmap(phba, if_type);
11811 goto out_iounmap_conf;
11815 if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
11816 (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
11818 * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
11819 * virtual address and setup the registers.
11821 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
11822 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
11823 phba->sli4_hba.drbl_regs_memmap_p =
11824 ioremap(phba->pci_bar1_map, bar1map_len);
11825 if (!phba->sli4_hba.drbl_regs_memmap_p) {
11826 dev_err(&pdev->dev,
11827 "ioremap failed for SLI4 HBA doorbell registers.\n");
11829 goto out_iounmap_conf;
11831 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
11832 lpfc_sli4_bar1_register_memmap(phba, if_type);
11835 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
11836 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
11838 * Map SLI4 if type 0 HBA Doorbell Register base to
11839 * a kernel virtual address and setup the registers.
11841 phba->pci_bar2_map = pci_resource_start(pdev,
11843 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
11844 phba->sli4_hba.drbl_regs_memmap_p =
11845 ioremap(phba->pci_bar2_map,
11847 if (!phba->sli4_hba.drbl_regs_memmap_p) {
11848 dev_err(&pdev->dev,
11849 "ioremap failed for SLI4 HBA"
11850 " doorbell registers.\n");
11852 goto out_iounmap_ctrl;
11854 phba->pci_bar4_memmap_p =
11855 phba->sli4_hba.drbl_regs_memmap_p;
11856 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
11858 goto out_iounmap_all;
11861 goto out_iounmap_all;
11865 if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
11866 pci_resource_start(pdev, PCI_64BIT_BAR4)) {
11868 * Map SLI4 if type 6 HBA DPP Register base to a kernel
11869 * virtual address and setup the registers.
11871 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
11872 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
11873 phba->sli4_hba.dpp_regs_memmap_p =
11874 ioremap(phba->pci_bar2_map, bar2map_len);
11875 if (!phba->sli4_hba.dpp_regs_memmap_p) {
11876 dev_err(&pdev->dev,
11877 "ioremap failed for SLI4 HBA dpp registers.\n");
11879 goto out_iounmap_ctrl;
11881 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
11884 /* Set up the EQ/CQ register handeling functions now */
11886 case LPFC_SLI_INTF_IF_TYPE_0:
11887 case LPFC_SLI_INTF_IF_TYPE_2:
11888 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
11889 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
11890 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
11892 case LPFC_SLI_INTF_IF_TYPE_6:
11893 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
11894 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
11895 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
11904 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
11906 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
11908 iounmap(phba->sli4_hba.conf_regs_memmap_p);
11914 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
11915 * @phba: pointer to lpfc hba data structure.
11917 * This routine is invoked to unset the PCI device memory space for device
11918 * with SLI-4 interface spec.
11921 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
11924 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11927 case LPFC_SLI_INTF_IF_TYPE_0:
11928 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
11929 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
11930 iounmap(phba->sli4_hba.conf_regs_memmap_p);
11932 case LPFC_SLI_INTF_IF_TYPE_2:
11933 iounmap(phba->sli4_hba.conf_regs_memmap_p);
11935 case LPFC_SLI_INTF_IF_TYPE_6:
11936 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
11937 iounmap(phba->sli4_hba.conf_regs_memmap_p);
11938 if (phba->sli4_hba.dpp_regs_memmap_p)
11939 iounmap(phba->sli4_hba.dpp_regs_memmap_p);
11941 case LPFC_SLI_INTF_IF_TYPE_1:
11943 dev_printk(KERN_ERR, &phba->pcidev->dev,
11944 "FATAL - unsupported SLI4 interface type - %d\n",
11951 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
11952 * @phba: pointer to lpfc hba data structure.
11954 * This routine is invoked to enable the MSI-X interrupt vectors to device
11955 * with SLI-3 interface specs.
11959 * other values - error
11962 lpfc_sli_enable_msix(struct lpfc_hba *phba)
11967 /* Set up MSI-X multi-message vectors */
11968 rc = pci_alloc_irq_vectors(phba->pcidev,
11969 LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
11971 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11972 "0420 PCI enable MSI-X failed (%d)\n", rc);
11977 * Assign MSI-X vectors to interrupt handlers
11980 /* vector-0 is associated to slow-path handler */
11981 rc = request_irq(pci_irq_vector(phba->pcidev, 0),
11982 &lpfc_sli_sp_intr_handler, 0,
11983 LPFC_SP_DRIVER_HANDLER_NAME, phba);
11985 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11986 "0421 MSI-X slow-path request_irq failed "
11991 /* vector-1 is associated to fast-path handler */
11992 rc = request_irq(pci_irq_vector(phba->pcidev, 1),
11993 &lpfc_sli_fp_intr_handler, 0,
11994 LPFC_FP_DRIVER_HANDLER_NAME, phba);
11997 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11998 "0429 MSI-X fast-path request_irq failed "
12004 * Configure HBA MSI-X attention conditions to messages
12006 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12010 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12011 "0474 Unable to allocate memory for issuing "
12012 "MBOX_CONFIG_MSI command\n");
12015 rc = lpfc_config_msi(phba, pmb);
12018 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
12019 if (rc != MBX_SUCCESS) {
12020 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
12021 "0351 Config MSI mailbox command failed, "
12022 "mbxCmd x%x, mbxStatus x%x\n",
12023 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
12027 /* Free memory allocated for mailbox command */
12028 mempool_free(pmb, phba->mbox_mem_pool);
12032 /* Free memory allocated for mailbox command */
12033 mempool_free(pmb, phba->mbox_mem_pool);
12036 /* free the irq already requested */
12037 free_irq(pci_irq_vector(phba->pcidev, 1), phba);
12040 /* free the irq already requested */
12041 free_irq(pci_irq_vector(phba->pcidev, 0), phba);
12044 /* Unconfigure MSI-X capability structure */
12045 pci_free_irq_vectors(phba->pcidev);
12052 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
12053 * @phba: pointer to lpfc hba data structure.
12055 * This routine is invoked to enable the MSI interrupt mode to device with
12056 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
12057 * enable the MSI vector. The device driver is responsible for calling the
12058 * request_irq() to register MSI vector with a interrupt the handler, which
12059 * is done in this function.
12063 * other values - error
12066 lpfc_sli_enable_msi(struct lpfc_hba *phba)
12070 rc = pci_enable_msi(phba->pcidev);
12072 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12073 "0462 PCI enable MSI mode success.\n");
12075 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12076 "0471 PCI enable MSI mode failed (%d)\n", rc);
12080 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
12081 0, LPFC_DRIVER_NAME, phba);
12083 pci_disable_msi(phba->pcidev);
12084 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12085 "0478 MSI request_irq failed (%d)\n", rc);
12091 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
12092 * @phba: pointer to lpfc hba data structure.
12093 * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
12095 * This routine is invoked to enable device interrupt and associate driver's
12096 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
12097 * spec. Depends on the interrupt mode configured to the driver, the driver
12098 * will try to fallback from the configured interrupt mode to an interrupt
12099 * mode which is supported by the platform, kernel, and device in the order
12101 * MSI-X -> MSI -> IRQ.
12105 * other values - error
12108 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
12110 uint32_t intr_mode = LPFC_INTR_ERROR;
12113 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
12114 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
12117 phba->hba_flag &= ~HBA_NEEDS_CFG_PORT;
12119 if (cfg_mode == 2) {
12120 /* Now, try to enable MSI-X interrupt mode */
12121 retval = lpfc_sli_enable_msix(phba);
12123 /* Indicate initialization to MSI-X mode */
12124 phba->intr_type = MSIX;
12129 /* Fallback to MSI if MSI-X initialization failed */
12130 if (cfg_mode >= 1 && phba->intr_type == NONE) {
12131 retval = lpfc_sli_enable_msi(phba);
12133 /* Indicate initialization to MSI mode */
12134 phba->intr_type = MSI;
12139 /* Fallback to INTx if both MSI-X/MSI initalization failed */
12140 if (phba->intr_type == NONE) {
12141 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
12142 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
12144 /* Indicate initialization to INTx mode */
12145 phba->intr_type = INTx;
12153 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
12154 * @phba: pointer to lpfc hba data structure.
12156 * This routine is invoked to disable device interrupt and disassociate the
12157 * driver's interrupt handler(s) from interrupt vector(s) to device with
12158 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
12159 * release the interrupt vector(s) for the message signaled interrupt.
12162 lpfc_sli_disable_intr(struct lpfc_hba *phba)
12166 if (phba->intr_type == MSIX)
12167 nr_irqs = LPFC_MSIX_VECTORS;
12171 for (i = 0; i < nr_irqs; i++)
12172 free_irq(pci_irq_vector(phba->pcidev, i), phba);
12173 pci_free_irq_vectors(phba->pcidev);
12175 /* Reset interrupt management states */
12176 phba->intr_type = NONE;
12177 phba->sli.slistat.sli_intr = 0;
12181 * lpfc_find_cpu_handle - Find the CPU that corresponds to the specified Queue
12182 * @phba: pointer to lpfc hba data structure.
12183 * @id: EQ vector index or Hardware Queue index
12184 * @match: LPFC_FIND_BY_EQ = match by EQ
12185 * LPFC_FIND_BY_HDWQ = match by Hardware Queue
12186 * Return the CPU that matches the selection criteria
12189 lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
12191 struct lpfc_vector_map_info *cpup;
12194 /* Loop through all CPUs */
12195 for_each_present_cpu(cpu) {
12196 cpup = &phba->sli4_hba.cpu_map[cpu];
12198 /* If we are matching by EQ, there may be multiple CPUs using
12199 * using the same vector, so select the one with
12200 * LPFC_CPU_FIRST_IRQ set.
12202 if ((match == LPFC_FIND_BY_EQ) &&
12203 (cpup->flag & LPFC_CPU_FIRST_IRQ) &&
12207 /* If matching by HDWQ, select the first CPU that matches */
12208 if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
12216 * lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
12217 * @phba: pointer to lpfc hba data structure.
12218 * @cpu: CPU map index
12219 * @phys_id: CPU package physical id
12220 * @core_id: CPU core id
12223 lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
12224 uint16_t phys_id, uint16_t core_id)
12226 struct lpfc_vector_map_info *cpup;
12229 for_each_present_cpu(idx) {
12230 cpup = &phba->sli4_hba.cpu_map[idx];
12231 /* Does the cpup match the one we are looking for */
12232 if ((cpup->phys_id == phys_id) &&
12233 (cpup->core_id == core_id) &&
12242 * lpfc_assign_eq_map_info - Assigns eq for vector_map structure
12243 * @phba: pointer to lpfc hba data structure.
12244 * @eqidx: index for eq and irq vector
12245 * @flag: flags to set for vector_map structure
12246 * @cpu: cpu used to index vector_map structure
12248 * The routine assigns eq info into vector_map structure
12251 lpfc_assign_eq_map_info(struct lpfc_hba *phba, uint16_t eqidx, uint16_t flag,
12254 struct lpfc_vector_map_info *cpup = &phba->sli4_hba.cpu_map[cpu];
12255 struct lpfc_hba_eq_hdl *eqhdl = lpfc_get_eq_hdl(eqidx);
12258 cpup->flag |= flag;
12260 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12261 "3336 Set Affinity: CPU %d irq %d eq %d flag x%x\n",
12262 cpu, eqhdl->irq, cpup->eq, cpup->flag);
12266 * lpfc_cpu_map_array_init - Initialize cpu_map structure
12267 * @phba: pointer to lpfc hba data structure.
12269 * The routine initializes the cpu_map array structure
12272 lpfc_cpu_map_array_init(struct lpfc_hba *phba)
12274 struct lpfc_vector_map_info *cpup;
12275 struct lpfc_eq_intr_info *eqi;
12278 for_each_possible_cpu(cpu) {
12279 cpup = &phba->sli4_hba.cpu_map[cpu];
12280 cpup->phys_id = LPFC_VECTOR_MAP_EMPTY;
12281 cpup->core_id = LPFC_VECTOR_MAP_EMPTY;
12282 cpup->hdwq = LPFC_VECTOR_MAP_EMPTY;
12283 cpup->eq = LPFC_VECTOR_MAP_EMPTY;
12285 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, cpu);
12286 INIT_LIST_HEAD(&eqi->list);
12292 * lpfc_hba_eq_hdl_array_init - Initialize hba_eq_hdl structure
12293 * @phba: pointer to lpfc hba data structure.
12295 * The routine initializes the hba_eq_hdl array structure
12298 lpfc_hba_eq_hdl_array_init(struct lpfc_hba *phba)
12300 struct lpfc_hba_eq_hdl *eqhdl;
12303 for (i = 0; i < phba->cfg_irq_chann; i++) {
12304 eqhdl = lpfc_get_eq_hdl(i);
12305 eqhdl->irq = LPFC_VECTOR_MAP_EMPTY;
12306 eqhdl->phba = phba;
12311 * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
12312 * @phba: pointer to lpfc hba data structure.
12313 * @vectors: number of msix vectors allocated.
12315 * The routine will figure out the CPU affinity assignment for every
12316 * MSI-X vector allocated for the HBA.
12317 * In addition, the CPU to IO channel mapping will be calculated
12318 * and the phba->sli4_hba.cpu_map array will reflect this.
12321 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
12323 int i, cpu, idx, next_idx, new_cpu, start_cpu, first_cpu;
12324 int max_phys_id, min_phys_id;
12325 int max_core_id, min_core_id;
12326 struct lpfc_vector_map_info *cpup;
12327 struct lpfc_vector_map_info *new_cpup;
12329 struct cpuinfo_x86 *cpuinfo;
12331 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12332 struct lpfc_hdwq_stat *c_stat;
12336 min_phys_id = LPFC_VECTOR_MAP_EMPTY;
12338 min_core_id = LPFC_VECTOR_MAP_EMPTY;
12340 /* Update CPU map with physical id and core id of each CPU */
12341 for_each_present_cpu(cpu) {
12342 cpup = &phba->sli4_hba.cpu_map[cpu];
12344 cpuinfo = &cpu_data(cpu);
12345 cpup->phys_id = cpuinfo->phys_proc_id;
12346 cpup->core_id = cpuinfo->cpu_core_id;
12347 if (lpfc_find_hyper(phba, cpu, cpup->phys_id, cpup->core_id))
12348 cpup->flag |= LPFC_CPU_MAP_HYPER;
12350 /* No distinction between CPUs for other platforms */
12352 cpup->core_id = cpu;
12355 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12356 "3328 CPU %d physid %d coreid %d flag x%x\n",
12357 cpu, cpup->phys_id, cpup->core_id, cpup->flag);
12359 if (cpup->phys_id > max_phys_id)
12360 max_phys_id = cpup->phys_id;
12361 if (cpup->phys_id < min_phys_id)
12362 min_phys_id = cpup->phys_id;
12364 if (cpup->core_id > max_core_id)
12365 max_core_id = cpup->core_id;
12366 if (cpup->core_id < min_core_id)
12367 min_core_id = cpup->core_id;
12370 /* After looking at each irq vector assigned to this pcidev, its
12371 * possible to see that not ALL CPUs have been accounted for.
12372 * Next we will set any unassigned (unaffinitized) cpu map
12373 * entries to a IRQ on the same phys_id.
12375 first_cpu = cpumask_first(cpu_present_mask);
12376 start_cpu = first_cpu;
12378 for_each_present_cpu(cpu) {
12379 cpup = &phba->sli4_hba.cpu_map[cpu];
12381 /* Is this CPU entry unassigned */
12382 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
12383 /* Mark CPU as IRQ not assigned by the kernel */
12384 cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
12386 /* If so, find a new_cpup thats on the the SAME
12387 * phys_id as cpup. start_cpu will start where we
12388 * left off so all unassigned entries don't get assgined
12389 * the IRQ of the first entry.
12391 new_cpu = start_cpu;
12392 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12393 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12394 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
12395 (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY) &&
12396 (new_cpup->phys_id == cpup->phys_id))
12398 new_cpu = cpumask_next(
12399 new_cpu, cpu_present_mask);
12400 if (new_cpu == nr_cpumask_bits)
12401 new_cpu = first_cpu;
12403 /* At this point, we leave the CPU as unassigned */
12406 /* We found a matching phys_id, so copy the IRQ info */
12407 cpup->eq = new_cpup->eq;
12409 /* Bump start_cpu to the next slot to minmize the
12410 * chance of having multiple unassigned CPU entries
12411 * selecting the same IRQ.
12413 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
12414 if (start_cpu == nr_cpumask_bits)
12415 start_cpu = first_cpu;
12417 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12418 "3337 Set Affinity: CPU %d "
12419 "eq %d from peer cpu %d same "
12421 cpu, cpup->eq, new_cpu,
12426 /* Set any unassigned cpu map entries to a IRQ on any phys_id */
12427 start_cpu = first_cpu;
12429 for_each_present_cpu(cpu) {
12430 cpup = &phba->sli4_hba.cpu_map[cpu];
12432 /* Is this entry unassigned */
12433 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
12434 /* Mark it as IRQ not assigned by the kernel */
12435 cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
12437 /* If so, find a new_cpup thats on ANY phys_id
12438 * as the cpup. start_cpu will start where we
12439 * left off so all unassigned entries don't get
12440 * assigned the IRQ of the first entry.
12442 new_cpu = start_cpu;
12443 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12444 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12445 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
12446 (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY))
12448 new_cpu = cpumask_next(
12449 new_cpu, cpu_present_mask);
12450 if (new_cpu == nr_cpumask_bits)
12451 new_cpu = first_cpu;
12453 /* We should never leave an entry unassigned */
12454 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12455 "3339 Set Affinity: CPU %d "
12456 "eq %d UNASSIGNED\n",
12457 cpup->hdwq, cpup->eq);
12460 /* We found an available entry, copy the IRQ info */
12461 cpup->eq = new_cpup->eq;
12463 /* Bump start_cpu to the next slot to minmize the
12464 * chance of having multiple unassigned CPU entries
12465 * selecting the same IRQ.
12467 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
12468 if (start_cpu == nr_cpumask_bits)
12469 start_cpu = first_cpu;
12471 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12472 "3338 Set Affinity: CPU %d "
12473 "eq %d from peer cpu %d (%d/%d)\n",
12474 cpu, cpup->eq, new_cpu,
12475 new_cpup->phys_id, new_cpup->core_id);
12479 /* Assign hdwq indices that are unique across all cpus in the map
12480 * that are also FIRST_CPUs.
12483 for_each_present_cpu(cpu) {
12484 cpup = &phba->sli4_hba.cpu_map[cpu];
12486 /* Only FIRST IRQs get a hdwq index assignment. */
12487 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
12490 /* 1 to 1, the first LPFC_CPU_FIRST_IRQ cpus to a unique hdwq */
12493 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12494 "3333 Set Affinity: CPU %d (phys %d core %d): "
12495 "hdwq %d eq %d flg x%x\n",
12496 cpu, cpup->phys_id, cpup->core_id,
12497 cpup->hdwq, cpup->eq, cpup->flag);
12499 /* Associate a hdwq with each cpu_map entry
12500 * This will be 1 to 1 - hdwq to cpu, unless there are less
12501 * hardware queues then CPUs. For that case we will just round-robin
12502 * the available hardware queues as they get assigned to CPUs.
12503 * The next_idx is the idx from the FIRST_CPU loop above to account
12504 * for irq_chann < hdwq. The idx is used for round-robin assignments
12505 * and needs to start at 0.
12510 for_each_present_cpu(cpu) {
12511 cpup = &phba->sli4_hba.cpu_map[cpu];
12513 /* FIRST cpus are already mapped. */
12514 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
12517 /* If the cfg_irq_chann < cfg_hdw_queue, set the hdwq
12518 * of the unassigned cpus to the next idx so that all
12519 * hdw queues are fully utilized.
12521 if (next_idx < phba->cfg_hdw_queue) {
12522 cpup->hdwq = next_idx;
12527 /* Not a First CPU and all hdw_queues are used. Reuse a
12528 * Hardware Queue for another CPU, so be smart about it
12529 * and pick one that has its IRQ/EQ mapped to the same phys_id
12530 * (CPU package) and core_id.
12532 new_cpu = start_cpu;
12533 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12534 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12535 if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
12536 new_cpup->phys_id == cpup->phys_id &&
12537 new_cpup->core_id == cpup->core_id) {
12540 new_cpu = cpumask_next(new_cpu, cpu_present_mask);
12541 if (new_cpu == nr_cpumask_bits)
12542 new_cpu = first_cpu;
12545 /* If we can't match both phys_id and core_id,
12546 * settle for just a phys_id match.
12548 new_cpu = start_cpu;
12549 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12550 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12551 if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
12552 new_cpup->phys_id == cpup->phys_id)
12555 new_cpu = cpumask_next(new_cpu, cpu_present_mask);
12556 if (new_cpu == nr_cpumask_bits)
12557 new_cpu = first_cpu;
12560 /* Otherwise just round robin on cfg_hdw_queue */
12561 cpup->hdwq = idx % phba->cfg_hdw_queue;
12565 /* We found an available entry, copy the IRQ info */
12566 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
12567 if (start_cpu == nr_cpumask_bits)
12568 start_cpu = first_cpu;
12569 cpup->hdwq = new_cpup->hdwq;
12571 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12572 "3335 Set Affinity: CPU %d (phys %d core %d): "
12573 "hdwq %d eq %d flg x%x\n",
12574 cpu, cpup->phys_id, cpup->core_id,
12575 cpup->hdwq, cpup->eq, cpup->flag);
12579 * Initialize the cpu_map slots for not-present cpus in case
12580 * a cpu is hot-added. Perform a simple hdwq round robin assignment.
12583 for_each_possible_cpu(cpu) {
12584 cpup = &phba->sli4_hba.cpu_map[cpu];
12585 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12586 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, cpu);
12587 c_stat->hdwq_no = cpup->hdwq;
12589 if (cpup->hdwq != LPFC_VECTOR_MAP_EMPTY)
12592 cpup->hdwq = idx++ % phba->cfg_hdw_queue;
12593 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12594 c_stat->hdwq_no = cpup->hdwq;
12596 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12597 "3340 Set Affinity: not present "
12598 "CPU %d hdwq %d\n",
12602 /* The cpu_map array will be used later during initialization
12603 * when EQ / CQ / WQs are allocated and configured.
12609 * lpfc_cpuhp_get_eq
12611 * @phba: pointer to lpfc hba data structure.
12612 * @cpu: cpu going offline
12613 * @eqlist: eq list to append to
12616 lpfc_cpuhp_get_eq(struct lpfc_hba *phba, unsigned int cpu,
12617 struct list_head *eqlist)
12619 const struct cpumask *maskp;
12620 struct lpfc_queue *eq;
12621 struct cpumask *tmp;
12624 tmp = kzalloc(cpumask_size(), GFP_KERNEL);
12628 for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
12629 maskp = pci_irq_get_affinity(phba->pcidev, idx);
12633 * if irq is not affinitized to the cpu going
12634 * then we don't need to poll the eq attached
12637 if (!cpumask_and(tmp, maskp, cpumask_of(cpu)))
12639 /* get the cpus that are online and are affini-
12640 * tized to this irq vector. If the count is
12641 * more than 1 then cpuhp is not going to shut-
12642 * down this vector. Since this cpu has not
12643 * gone offline yet, we need >1.
12645 cpumask_and(tmp, maskp, cpu_online_mask);
12646 if (cpumask_weight(tmp) > 1)
12649 /* Now that we have an irq to shutdown, get the eq
12650 * mapped to this irq. Note: multiple hdwq's in
12651 * the software can share an eq, but eventually
12652 * only eq will be mapped to this vector
12654 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
12655 list_add(&eq->_poll_list, eqlist);
12661 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba)
12663 if (phba->sli_rev != LPFC_SLI_REV4)
12666 cpuhp_state_remove_instance_nocalls(lpfc_cpuhp_state,
12669 * unregistering the instance doesn't stop the polling
12670 * timer. Wait for the poll timer to retire.
12673 del_timer_sync(&phba->cpuhp_poll_timer);
12676 static void lpfc_cpuhp_remove(struct lpfc_hba *phba)
12678 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
12681 __lpfc_cpuhp_remove(phba);
12684 static void lpfc_cpuhp_add(struct lpfc_hba *phba)
12686 if (phba->sli_rev != LPFC_SLI_REV4)
12691 if (!list_empty(&phba->poll_list))
12692 mod_timer(&phba->cpuhp_poll_timer,
12693 jiffies + msecs_to_jiffies(LPFC_POLL_HB));
12697 cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state,
12701 static int __lpfc_cpuhp_checks(struct lpfc_hba *phba, int *retval)
12703 if (phba->pport->load_flag & FC_UNLOADING) {
12708 if (phba->sli_rev != LPFC_SLI_REV4) {
12713 /* proceed with the hotplug */
12718 * lpfc_irq_set_aff - set IRQ affinity
12719 * @eqhdl: EQ handle
12720 * @cpu: cpu to set affinity
12724 lpfc_irq_set_aff(struct lpfc_hba_eq_hdl *eqhdl, unsigned int cpu)
12726 cpumask_clear(&eqhdl->aff_mask);
12727 cpumask_set_cpu(cpu, &eqhdl->aff_mask);
12728 irq_set_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
12729 irq_set_affinity(eqhdl->irq, &eqhdl->aff_mask);
12733 * lpfc_irq_clear_aff - clear IRQ affinity
12734 * @eqhdl: EQ handle
12738 lpfc_irq_clear_aff(struct lpfc_hba_eq_hdl *eqhdl)
12740 cpumask_clear(&eqhdl->aff_mask);
12741 irq_clear_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
12745 * lpfc_irq_rebalance - rebalances IRQ affinity according to cpuhp event
12746 * @phba: pointer to HBA context object.
12747 * @cpu: cpu going offline/online
12748 * @offline: true, cpu is going offline. false, cpu is coming online.
12750 * If cpu is going offline, we'll try our best effort to find the next
12751 * online cpu on the phba's original_mask and migrate all offlining IRQ
12754 * If cpu is coming online, reaffinitize the IRQ back to the onlining cpu.
12756 * Note: Call only if NUMA or NHT mode is enabled, otherwise rely on
12757 * PCI_IRQ_AFFINITY to auto-manage IRQ affinity.
12761 lpfc_irq_rebalance(struct lpfc_hba *phba, unsigned int cpu, bool offline)
12763 struct lpfc_vector_map_info *cpup;
12764 struct cpumask *aff_mask;
12765 unsigned int cpu_select, cpu_next, idx;
12766 const struct cpumask *orig_mask;
12768 if (phba->irq_chann_mode == NORMAL_MODE)
12771 orig_mask = &phba->sli4_hba.irq_aff_mask;
12773 if (!cpumask_test_cpu(cpu, orig_mask))
12776 cpup = &phba->sli4_hba.cpu_map[cpu];
12778 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
12782 /* Find next online CPU on original mask */
12783 cpu_next = cpumask_next_wrap(cpu, orig_mask, cpu, true);
12784 cpu_select = lpfc_next_online_cpu(orig_mask, cpu_next);
12786 /* Found a valid CPU */
12787 if ((cpu_select < nr_cpu_ids) && (cpu_select != cpu)) {
12788 /* Go through each eqhdl and ensure offlining
12789 * cpu aff_mask is migrated
12791 for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
12792 aff_mask = lpfc_get_aff_mask(idx);
12794 /* Migrate affinity */
12795 if (cpumask_test_cpu(cpu, aff_mask))
12796 lpfc_irq_set_aff(lpfc_get_eq_hdl(idx),
12800 /* Rely on irqbalance if no online CPUs left on NUMA */
12801 for (idx = 0; idx < phba->cfg_irq_chann; idx++)
12802 lpfc_irq_clear_aff(lpfc_get_eq_hdl(idx));
12805 /* Migrate affinity back to this CPU */
12806 lpfc_irq_set_aff(lpfc_get_eq_hdl(cpup->eq), cpu);
12810 static int lpfc_cpu_offline(unsigned int cpu, struct hlist_node *node)
12812 struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
12813 struct lpfc_queue *eq, *next;
12818 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
12822 if (__lpfc_cpuhp_checks(phba, &retval))
12825 lpfc_irq_rebalance(phba, cpu, true);
12827 retval = lpfc_cpuhp_get_eq(phba, cpu, &eqlist);
12831 /* start polling on these eq's */
12832 list_for_each_entry_safe(eq, next, &eqlist, _poll_list) {
12833 list_del_init(&eq->_poll_list);
12834 lpfc_sli4_start_polling(eq);
12840 static int lpfc_cpu_online(unsigned int cpu, struct hlist_node *node)
12842 struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
12843 struct lpfc_queue *eq, *next;
12848 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
12852 if (__lpfc_cpuhp_checks(phba, &retval))
12855 lpfc_irq_rebalance(phba, cpu, false);
12857 list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list) {
12858 n = lpfc_find_cpu_handle(phba, eq->hdwq, LPFC_FIND_BY_HDWQ);
12860 lpfc_sli4_stop_polling(eq);
12867 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
12868 * @phba: pointer to lpfc hba data structure.
12870 * This routine is invoked to enable the MSI-X interrupt vectors to device
12871 * with SLI-4 interface spec. It also allocates MSI-X vectors and maps them
12872 * to cpus on the system.
12874 * When cfg_irq_numa is enabled, the adapter will only allocate vectors for
12875 * the number of cpus on the same numa node as this adapter. The vectors are
12876 * allocated without requesting OS affinity mapping. A vector will be
12877 * allocated and assigned to each online and offline cpu. If the cpu is
12878 * online, then affinity will be set to that cpu. If the cpu is offline, then
12879 * affinity will be set to the nearest peer cpu within the numa node that is
12880 * online. If there are no online cpus within the numa node, affinity is not
12881 * assigned and the OS may do as it pleases. Note: cpu vector affinity mapping
12882 * is consistent with the way cpu online/offline is handled when cfg_irq_numa is
12885 * If numa mode is not enabled and there is more than 1 vector allocated, then
12886 * the driver relies on the managed irq interface where the OS assigns vector to
12887 * cpu affinity. The driver will then use that affinity mapping to setup its
12888 * cpu mapping table.
12892 * other values - error
12895 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
12897 int vectors, rc, index;
12899 const struct cpumask *aff_mask = NULL;
12900 unsigned int cpu = 0, cpu_cnt = 0, cpu_select = nr_cpu_ids;
12901 struct lpfc_vector_map_info *cpup;
12902 struct lpfc_hba_eq_hdl *eqhdl;
12903 const struct cpumask *maskp;
12904 unsigned int flags = PCI_IRQ_MSIX;
12906 /* Set up MSI-X multi-message vectors */
12907 vectors = phba->cfg_irq_chann;
12909 if (phba->irq_chann_mode != NORMAL_MODE)
12910 aff_mask = &phba->sli4_hba.irq_aff_mask;
12913 cpu_cnt = cpumask_weight(aff_mask);
12914 vectors = min(phba->cfg_irq_chann, cpu_cnt);
12916 /* cpu: iterates over aff_mask including offline or online
12917 * cpu_select: iterates over online aff_mask to set affinity
12919 cpu = cpumask_first(aff_mask);
12920 cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
12922 flags |= PCI_IRQ_AFFINITY;
12925 rc = pci_alloc_irq_vectors(phba->pcidev, 1, vectors, flags);
12927 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12928 "0484 PCI enable MSI-X failed (%d)\n", rc);
12933 /* Assign MSI-X vectors to interrupt handlers */
12934 for (index = 0; index < vectors; index++) {
12935 eqhdl = lpfc_get_eq_hdl(index);
12936 name = eqhdl->handler_name;
12937 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
12938 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
12939 LPFC_DRIVER_HANDLER_NAME"%d", index);
12941 eqhdl->idx = index;
12942 rc = request_irq(pci_irq_vector(phba->pcidev, index),
12943 &lpfc_sli4_hba_intr_handler, 0,
12946 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12947 "0486 MSI-X fast-path (%d) "
12948 "request_irq failed (%d)\n", index, rc);
12952 eqhdl->irq = pci_irq_vector(phba->pcidev, index);
12955 /* If found a neighboring online cpu, set affinity */
12956 if (cpu_select < nr_cpu_ids)
12957 lpfc_irq_set_aff(eqhdl, cpu_select);
12959 /* Assign EQ to cpu_map */
12960 lpfc_assign_eq_map_info(phba, index,
12961 LPFC_CPU_FIRST_IRQ,
12964 /* Iterate to next offline or online cpu in aff_mask */
12965 cpu = cpumask_next(cpu, aff_mask);
12967 /* Find next online cpu in aff_mask to set affinity */
12968 cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
12969 } else if (vectors == 1) {
12970 cpu = cpumask_first(cpu_present_mask);
12971 lpfc_assign_eq_map_info(phba, index, LPFC_CPU_FIRST_IRQ,
12974 maskp = pci_irq_get_affinity(phba->pcidev, index);
12976 /* Loop through all CPUs associated with vector index */
12977 for_each_cpu_and(cpu, maskp, cpu_present_mask) {
12978 cpup = &phba->sli4_hba.cpu_map[cpu];
12980 /* If this is the first CPU thats assigned to
12981 * this vector, set LPFC_CPU_FIRST_IRQ.
12983 * With certain platforms its possible that irq
12984 * vectors are affinitized to all the cpu's.
12985 * This can result in each cpu_map.eq to be set
12986 * to the last vector, resulting in overwrite
12987 * of all the previous cpu_map.eq. Ensure that
12988 * each vector receives a place in cpu_map.
12989 * Later call to lpfc_cpu_affinity_check will
12990 * ensure we are nicely balanced out.
12992 if (cpup->eq != LPFC_VECTOR_MAP_EMPTY)
12994 lpfc_assign_eq_map_info(phba, index,
12995 LPFC_CPU_FIRST_IRQ,
13002 if (vectors != phba->cfg_irq_chann) {
13003 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13004 "3238 Reducing IO channels to match number of "
13005 "MSI-X vectors, requested %d got %d\n",
13006 phba->cfg_irq_chann, vectors);
13007 if (phba->cfg_irq_chann > vectors)
13008 phba->cfg_irq_chann = vectors;
13014 /* free the irq already requested */
13015 for (--index; index >= 0; index--) {
13016 eqhdl = lpfc_get_eq_hdl(index);
13017 lpfc_irq_clear_aff(eqhdl);
13018 free_irq(eqhdl->irq, eqhdl);
13021 /* Unconfigure MSI-X capability structure */
13022 pci_free_irq_vectors(phba->pcidev);
13029 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
13030 * @phba: pointer to lpfc hba data structure.
13032 * This routine is invoked to enable the MSI interrupt mode to device with
13033 * SLI-4 interface spec. The kernel function pci_alloc_irq_vectors() is
13034 * called to enable the MSI vector. The device driver is responsible for
13035 * calling the request_irq() to register MSI vector with a interrupt the
13036 * handler, which is done in this function.
13040 * other values - error
13043 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
13047 struct lpfc_hba_eq_hdl *eqhdl;
13049 rc = pci_alloc_irq_vectors(phba->pcidev, 1, 1,
13050 PCI_IRQ_MSI | PCI_IRQ_AFFINITY);
13052 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13053 "0487 PCI enable MSI mode success.\n");
13055 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13056 "0488 PCI enable MSI mode failed (%d)\n", rc);
13057 return rc ? rc : -1;
13060 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
13061 0, LPFC_DRIVER_NAME, phba);
13063 pci_free_irq_vectors(phba->pcidev);
13064 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13065 "0490 MSI request_irq failed (%d)\n", rc);
13069 eqhdl = lpfc_get_eq_hdl(0);
13070 eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
13072 cpu = cpumask_first(cpu_present_mask);
13073 lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ, cpu);
13075 for (index = 0; index < phba->cfg_irq_chann; index++) {
13076 eqhdl = lpfc_get_eq_hdl(index);
13077 eqhdl->idx = index;
13084 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
13085 * @phba: pointer to lpfc hba data structure.
13086 * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
13088 * This routine is invoked to enable device interrupt and associate driver's
13089 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
13090 * interface spec. Depends on the interrupt mode configured to the driver,
13091 * the driver will try to fallback from the configured interrupt mode to an
13092 * interrupt mode which is supported by the platform, kernel, and device in
13094 * MSI-X -> MSI -> IRQ.
13098 * other values - error
13101 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
13103 uint32_t intr_mode = LPFC_INTR_ERROR;
13106 if (cfg_mode == 2) {
13107 /* Preparation before conf_msi mbox cmd */
13110 /* Now, try to enable MSI-X interrupt mode */
13111 retval = lpfc_sli4_enable_msix(phba);
13113 /* Indicate initialization to MSI-X mode */
13114 phba->intr_type = MSIX;
13120 /* Fallback to MSI if MSI-X initialization failed */
13121 if (cfg_mode >= 1 && phba->intr_type == NONE) {
13122 retval = lpfc_sli4_enable_msi(phba);
13124 /* Indicate initialization to MSI mode */
13125 phba->intr_type = MSI;
13130 /* Fallback to INTx if both MSI-X/MSI initalization failed */
13131 if (phba->intr_type == NONE) {
13132 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
13133 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
13135 struct lpfc_hba_eq_hdl *eqhdl;
13138 /* Indicate initialization to INTx mode */
13139 phba->intr_type = INTx;
13142 eqhdl = lpfc_get_eq_hdl(0);
13143 eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
13145 cpu = cpumask_first(cpu_present_mask);
13146 lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ,
13148 for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
13149 eqhdl = lpfc_get_eq_hdl(idx);
13158 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
13159 * @phba: pointer to lpfc hba data structure.
13161 * This routine is invoked to disable device interrupt and disassociate
13162 * the driver's interrupt handler(s) from interrupt vector(s) to device
13163 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
13164 * will release the interrupt vector(s) for the message signaled interrupt.
13167 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
13169 /* Disable the currently initialized interrupt mode */
13170 if (phba->intr_type == MSIX) {
13172 struct lpfc_hba_eq_hdl *eqhdl;
13174 /* Free up MSI-X multi-message vectors */
13175 for (index = 0; index < phba->cfg_irq_chann; index++) {
13176 eqhdl = lpfc_get_eq_hdl(index);
13177 lpfc_irq_clear_aff(eqhdl);
13178 free_irq(eqhdl->irq, eqhdl);
13181 free_irq(phba->pcidev->irq, phba);
13184 pci_free_irq_vectors(phba->pcidev);
13186 /* Reset interrupt management states */
13187 phba->intr_type = NONE;
13188 phba->sli.slistat.sli_intr = 0;
13192 * lpfc_unset_hba - Unset SLI3 hba device initialization
13193 * @phba: pointer to lpfc hba data structure.
13195 * This routine is invoked to unset the HBA device initialization steps to
13196 * a device with SLI-3 interface spec.
13199 lpfc_unset_hba(struct lpfc_hba *phba)
13201 struct lpfc_vport *vport = phba->pport;
13202 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
13204 spin_lock_irq(shost->host_lock);
13205 vport->load_flag |= FC_UNLOADING;
13206 spin_unlock_irq(shost->host_lock);
13208 kfree(phba->vpi_bmask);
13209 kfree(phba->vpi_ids);
13211 lpfc_stop_hba_timers(phba);
13213 phba->pport->work_port_events = 0;
13215 lpfc_sli_hba_down(phba);
13217 lpfc_sli_brdrestart(phba);
13219 lpfc_sli_disable_intr(phba);
13225 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
13226 * @phba: Pointer to HBA context object.
13228 * This function is called in the SLI4 code path to wait for completion
13229 * of device's XRIs exchange busy. It will check the XRI exchange busy
13230 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
13231 * that, it will check the XRI exchange busy on outstanding FCP and ELS
13232 * I/Os every 30 seconds, log error message, and wait forever. Only when
13233 * all XRI exchange busy complete, the driver unload shall proceed with
13234 * invoking the function reset ioctl mailbox command to the CNA and the
13235 * the rest of the driver unload resource release.
13238 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
13240 struct lpfc_sli4_hdw_queue *qp;
13243 int io_xri_cmpl = 1;
13244 int nvmet_xri_cmpl = 1;
13245 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
13247 /* Driver just aborted IOs during the hba_unset process. Pause
13248 * here to give the HBA time to complete the IO and get entries
13249 * into the abts lists.
13251 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
13253 /* Wait for NVME pending IO to flush back to transport. */
13254 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
13255 lpfc_nvme_wait_for_io_drain(phba);
13258 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
13259 qp = &phba->sli4_hba.hdwq[idx];
13260 io_xri_cmpl = list_empty(&qp->lpfc_abts_io_buf_list);
13261 if (!io_xri_cmpl) /* if list is NOT empty */
13267 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13269 list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
13272 while (!els_xri_cmpl || !io_xri_cmpl || !nvmet_xri_cmpl) {
13273 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
13274 if (!nvmet_xri_cmpl)
13275 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13276 "6424 NVMET XRI exchange busy "
13277 "wait time: %d seconds.\n",
13280 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13281 "6100 IO XRI exchange busy "
13282 "wait time: %d seconds.\n",
13285 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13286 "2878 ELS XRI exchange busy "
13287 "wait time: %d seconds.\n",
13289 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
13290 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
13292 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
13293 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
13297 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
13298 qp = &phba->sli4_hba.hdwq[idx];
13299 io_xri_cmpl = list_empty(
13300 &qp->lpfc_abts_io_buf_list);
13301 if (!io_xri_cmpl) /* if list is NOT empty */
13307 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13308 nvmet_xri_cmpl = list_empty(
13309 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
13312 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
13318 * lpfc_sli4_hba_unset - Unset the fcoe hba
13319 * @phba: Pointer to HBA context object.
13321 * This function is called in the SLI4 code path to reset the HBA's FCoE
13322 * function. The caller is not required to hold any lock. This routine
13323 * issues PCI function reset mailbox command to reset the FCoE function.
13324 * At the end of the function, it calls lpfc_hba_down_post function to
13325 * free any pending commands.
13328 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
13331 LPFC_MBOXQ_t *mboxq;
13332 struct pci_dev *pdev = phba->pcidev;
13334 lpfc_stop_hba_timers(phba);
13335 hrtimer_cancel(&phba->cmf_timer);
13338 phba->sli4_hba.intr_enable = 0;
13341 * Gracefully wait out the potential current outstanding asynchronous
13345 /* First, block any pending async mailbox command from posted */
13346 spin_lock_irq(&phba->hbalock);
13347 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
13348 spin_unlock_irq(&phba->hbalock);
13349 /* Now, trying to wait it out if we can */
13350 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
13352 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
13355 /* Forcefully release the outstanding mailbox command if timed out */
13356 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
13357 spin_lock_irq(&phba->hbalock);
13358 mboxq = phba->sli.mbox_active;
13359 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
13360 __lpfc_mbox_cmpl_put(phba, mboxq);
13361 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
13362 phba->sli.mbox_active = NULL;
13363 spin_unlock_irq(&phba->hbalock);
13366 /* Abort all iocbs associated with the hba */
13367 lpfc_sli_hba_iocb_abort(phba);
13369 /* Wait for completion of device XRI exchange busy */
13370 lpfc_sli4_xri_exchange_busy_wait(phba);
13372 /* per-phba callback de-registration for hotplug event */
13374 lpfc_cpuhp_remove(phba);
13376 /* Disable PCI subsystem interrupt */
13377 lpfc_sli4_disable_intr(phba);
13379 /* Disable SR-IOV if enabled */
13380 if (phba->cfg_sriov_nr_virtfn)
13381 pci_disable_sriov(pdev);
13383 /* Stop kthread signal shall trigger work_done one more time */
13384 kthread_stop(phba->worker_thread);
13386 /* Disable FW logging to host memory */
13387 lpfc_ras_stop_fwlog(phba);
13389 /* Unset the queues shared with the hardware then release all
13390 * allocated resources.
13392 lpfc_sli4_queue_unset(phba);
13393 lpfc_sli4_queue_destroy(phba);
13395 /* Reset SLI4 HBA FCoE function */
13396 lpfc_pci_function_reset(phba);
13398 /* Free RAS DMA memory */
13399 if (phba->ras_fwlog.ras_enabled)
13400 lpfc_sli4_ras_dma_free(phba);
13402 /* Stop the SLI4 device port */
13404 phba->pport->work_port_events = 0;
13408 lpfc_cgn_crc32(uint32_t crc, u8 byte)
13413 for (bit = 0; bit < 8; bit++) {
13414 msb = (crc >> 31) & 1;
13417 if (msb ^ (byte & 1)) {
13418 crc ^= LPFC_CGN_CRC32_MAGIC_NUMBER;
13427 lpfc_cgn_reverse_bits(uint32_t wd)
13429 uint32_t result = 0;
13432 for (i = 0; i < 32; i++) {
13434 result |= (1 & (wd >> i));
13440 * The routine corresponds with the algorithm the HBA firmware
13441 * uses to validate the data integrity.
13444 lpfc_cgn_calc_crc32(void *ptr, uint32_t byteLen, uint32_t crc)
13448 uint8_t *data = (uint8_t *)ptr;
13450 for (i = 0; i < byteLen; ++i)
13451 crc = lpfc_cgn_crc32(crc, data[i]);
13453 result = ~lpfc_cgn_reverse_bits(crc);
13458 lpfc_init_congestion_buf(struct lpfc_hba *phba)
13460 struct lpfc_cgn_info *cp;
13461 struct timespec64 cmpl_time;
13466 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
13467 "6235 INIT Congestion Buffer %p\n", phba->cgn_i);
13471 cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
13473 atomic_set(&phba->cgn_fabric_warn_cnt, 0);
13474 atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
13475 atomic_set(&phba->cgn_sync_alarm_cnt, 0);
13476 atomic_set(&phba->cgn_sync_warn_cnt, 0);
13478 atomic_set(&phba->cgn_driver_evt_cnt, 0);
13479 atomic_set(&phba->cgn_latency_evt_cnt, 0);
13480 atomic64_set(&phba->cgn_latency_evt, 0);
13481 phba->cgn_evt_minute = 0;
13482 phba->hba_flag &= ~HBA_CGN_DAY_WRAP;
13484 memset(cp, 0xff, offsetof(struct lpfc_cgn_info, cgn_stat));
13485 cp->cgn_info_size = cpu_to_le16(LPFC_CGN_INFO_SZ);
13486 cp->cgn_info_version = LPFC_CGN_INFO_V3;
13488 /* cgn parameters */
13489 cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
13490 cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
13491 cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
13492 cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
13494 ktime_get_real_ts64(&cmpl_time);
13495 time64_to_tm(cmpl_time.tv_sec, 0, &broken);
13497 cp->cgn_info_month = broken.tm_mon + 1;
13498 cp->cgn_info_day = broken.tm_mday;
13499 cp->cgn_info_year = broken.tm_year - 100; /* relative to 2000 */
13500 cp->cgn_info_hour = broken.tm_hour;
13501 cp->cgn_info_minute = broken.tm_min;
13502 cp->cgn_info_second = broken.tm_sec;
13504 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
13505 "2643 CGNInfo Init: Start Time "
13506 "%d/%d/%d %d:%d:%d\n",
13507 cp->cgn_info_day, cp->cgn_info_month,
13508 cp->cgn_info_year, cp->cgn_info_hour,
13509 cp->cgn_info_minute, cp->cgn_info_second);
13511 /* Fill in default LUN qdepth */
13513 size = (uint16_t)(phba->pport->cfg_lun_queue_depth);
13514 cp->cgn_lunq = cpu_to_le16(size);
13517 /* last used Index initialized to 0xff already */
13519 cp->cgn_warn_freq = cpu_to_le16(LPFC_FPIN_INIT_FREQ);
13520 cp->cgn_alarm_freq = cpu_to_le16(LPFC_FPIN_INIT_FREQ);
13521 crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ, LPFC_CGN_CRC32_SEED);
13522 cp->cgn_info_crc = cpu_to_le32(crc);
13524 phba->cgn_evt_timestamp = jiffies +
13525 msecs_to_jiffies(LPFC_CGN_TIMER_TO_MIN);
13529 lpfc_init_congestion_stat(struct lpfc_hba *phba)
13531 struct lpfc_cgn_info *cp;
13532 struct timespec64 cmpl_time;
13536 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
13537 "6236 INIT Congestion Stat %p\n", phba->cgn_i);
13542 cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
13543 memset(&cp->cgn_stat, 0, sizeof(cp->cgn_stat));
13545 ktime_get_real_ts64(&cmpl_time);
13546 time64_to_tm(cmpl_time.tv_sec, 0, &broken);
13548 cp->cgn_stat_month = broken.tm_mon + 1;
13549 cp->cgn_stat_day = broken.tm_mday;
13550 cp->cgn_stat_year = broken.tm_year - 100; /* relative to 2000 */
13551 cp->cgn_stat_hour = broken.tm_hour;
13552 cp->cgn_stat_minute = broken.tm_min;
13554 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
13555 "2647 CGNstat Init: Start Time "
13556 "%d/%d/%d %d:%d\n",
13557 cp->cgn_stat_day, cp->cgn_stat_month,
13558 cp->cgn_stat_year, cp->cgn_stat_hour,
13559 cp->cgn_stat_minute);
13561 crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ, LPFC_CGN_CRC32_SEED);
13562 cp->cgn_info_crc = cpu_to_le32(crc);
13566 * __lpfc_reg_congestion_buf - register congestion info buffer with HBA
13567 * @phba: Pointer to hba context object.
13568 * @reg: flag to determine register or unregister.
13571 __lpfc_reg_congestion_buf(struct lpfc_hba *phba, int reg)
13573 struct lpfc_mbx_reg_congestion_buf *reg_congestion_buf;
13574 union lpfc_sli4_cfg_shdr *shdr;
13575 uint32_t shdr_status, shdr_add_status;
13576 LPFC_MBOXQ_t *mboxq;
13582 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13584 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
13585 "2641 REG_CONGESTION_BUF mbox allocation fail: "
13586 "HBA state x%x reg %d\n",
13587 phba->pport->port_state, reg);
13591 length = (sizeof(struct lpfc_mbx_reg_congestion_buf) -
13592 sizeof(struct lpfc_sli4_cfg_mhdr));
13593 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
13594 LPFC_MBOX_OPCODE_REG_CONGESTION_BUF, length,
13595 LPFC_SLI4_MBX_EMBED);
13596 reg_congestion_buf = &mboxq->u.mqe.un.reg_congestion_buf;
13597 bf_set(lpfc_mbx_reg_cgn_buf_type, reg_congestion_buf, 1);
13599 bf_set(lpfc_mbx_reg_cgn_buf_cnt, reg_congestion_buf, 1);
13601 bf_set(lpfc_mbx_reg_cgn_buf_cnt, reg_congestion_buf, 0);
13602 reg_congestion_buf->length = sizeof(struct lpfc_cgn_info);
13603 reg_congestion_buf->addr_lo =
13604 putPaddrLow(phba->cgn_i->phys);
13605 reg_congestion_buf->addr_hi =
13606 putPaddrHigh(phba->cgn_i->phys);
13608 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
13609 shdr = (union lpfc_sli4_cfg_shdr *)
13610 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
13611 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13612 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
13614 mempool_free(mboxq, phba->mbox_mem_pool);
13615 if (shdr_status || shdr_add_status || rc) {
13616 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13617 "2642 REG_CONGESTION_BUF mailbox "
13618 "failed with status x%x add_status x%x,"
13619 " mbx status x%x reg %d\n",
13620 shdr_status, shdr_add_status, rc, reg);
13627 lpfc_unreg_congestion_buf(struct lpfc_hba *phba)
13629 lpfc_cmf_stop(phba);
13630 return __lpfc_reg_congestion_buf(phba, 0);
13634 lpfc_reg_congestion_buf(struct lpfc_hba *phba)
13636 return __lpfc_reg_congestion_buf(phba, 1);
13640 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
13641 * @phba: Pointer to HBA context object.
13642 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
13644 * This function is called in the SLI4 code path to read the port's
13645 * sli4 capabilities.
13647 * This function may be be called from any context that can block-wait
13648 * for the completion. The expectation is that this routine is called
13649 * typically from probe_one or from the online routine.
13652 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
13655 struct lpfc_mqe *mqe = &mboxq->u.mqe;
13656 struct lpfc_pc_sli4_params *sli4_params;
13659 bool exp_wqcq_pages = true;
13660 struct lpfc_sli4_parameters *mbx_sli4_parameters;
13663 * By default, the driver assumes the SLI4 port requires RPI
13664 * header postings. The SLI4_PARAM response will correct this
13667 phba->sli4_hba.rpi_hdrs_in_use = 1;
13669 /* Read the port's SLI4 Config Parameters */
13670 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
13671 sizeof(struct lpfc_sli4_cfg_mhdr));
13672 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
13673 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
13674 length, LPFC_SLI4_MBX_EMBED);
13675 if (!phba->sli4_hba.intr_enable)
13676 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
13678 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
13679 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
13683 sli4_params = &phba->sli4_hba.pc_sli4_params;
13684 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
13685 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
13686 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
13687 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
13688 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
13689 mbx_sli4_parameters);
13690 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
13691 mbx_sli4_parameters);
13692 if (bf_get(cfg_phwq, mbx_sli4_parameters))
13693 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
13695 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
13696 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
13697 sli4_params->loopbk_scope = bf_get(cfg_loopbk_scope,
13698 mbx_sli4_parameters);
13699 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
13700 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
13701 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
13702 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
13703 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
13704 sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
13705 sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
13706 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
13707 sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
13708 sli4_params->pls = bf_get(cfg_pvl, mbx_sli4_parameters);
13709 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
13710 mbx_sli4_parameters);
13711 sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
13712 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
13713 mbx_sli4_parameters);
13714 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
13715 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
13717 /* Check for Extended Pre-Registered SGL support */
13718 phba->cfg_xpsgl = bf_get(cfg_xpsgl, mbx_sli4_parameters);
13720 /* Check for firmware nvme support */
13721 rc = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
13722 bf_get(cfg_xib, mbx_sli4_parameters));
13725 /* Save this to indicate the Firmware supports NVME */
13726 sli4_params->nvme = 1;
13728 /* Firmware NVME support, check driver FC4 NVME support */
13729 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) {
13730 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
13731 "6133 Disabling NVME support: "
13732 "FC4 type not supported: x%x\n",
13733 phba->cfg_enable_fc4_type);
13737 /* No firmware NVME support, check driver FC4 NVME support */
13738 sli4_params->nvme = 0;
13739 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13740 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
13741 "6101 Disabling NVME support: Not "
13742 "supported by firmware (%d %d) x%x\n",
13743 bf_get(cfg_nvme, mbx_sli4_parameters),
13744 bf_get(cfg_xib, mbx_sli4_parameters),
13745 phba->cfg_enable_fc4_type);
13747 phba->nvmet_support = 0;
13748 phba->cfg_nvmet_mrq = 0;
13749 phba->cfg_nvme_seg_cnt = 0;
13751 /* If no FC4 type support, move to just SCSI support */
13752 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
13754 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
13758 /* If the NVME FC4 type is enabled, scale the sg_seg_cnt to
13759 * accommodate 512K and 1M IOs in a single nvme buf.
13761 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
13762 phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
13764 /* Enable embedded Payload BDE if support is indicated */
13765 if (bf_get(cfg_pbde, mbx_sli4_parameters))
13766 phba->cfg_enable_pbde = 1;
13768 phba->cfg_enable_pbde = 0;
13771 * To support Suppress Response feature we must satisfy 3 conditions.
13772 * lpfc_suppress_rsp module parameter must be set (default).
13773 * In SLI4-Parameters Descriptor:
13774 * Extended Inline Buffers (XIB) must be supported.
13775 * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
13776 * (double negative).
13778 if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
13779 !(bf_get(cfg_nosr, mbx_sli4_parameters)))
13780 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
13782 phba->cfg_suppress_rsp = 0;
13784 if (bf_get(cfg_eqdr, mbx_sli4_parameters))
13785 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
13787 /* Make sure that sge_supp_len can be handled by the driver */
13788 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
13789 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
13792 * Check whether the adapter supports an embedded copy of the
13793 * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
13794 * to use this option, 128-byte WQEs must be used.
13796 if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
13797 phba->fcp_embed_io = 1;
13799 phba->fcp_embed_io = 0;
13801 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
13802 "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
13803 bf_get(cfg_xib, mbx_sli4_parameters),
13804 phba->cfg_enable_pbde,
13805 phba->fcp_embed_io, sli4_params->nvme,
13806 phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
13808 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
13809 LPFC_SLI_INTF_IF_TYPE_2) &&
13810 (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
13811 LPFC_SLI_INTF_FAMILY_LNCR_A0))
13812 exp_wqcq_pages = false;
13814 if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
13815 (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
13817 (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
13818 phba->enab_exp_wqcq_pages = 1;
13820 phba->enab_exp_wqcq_pages = 0;
13822 * Check if the SLI port supports MDS Diagnostics
13824 if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
13825 phba->mds_diags_support = 1;
13827 phba->mds_diags_support = 0;
13830 * Check if the SLI port supports NSLER
13832 if (bf_get(cfg_nsler, mbx_sli4_parameters))
13841 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
13842 * @pdev: pointer to PCI device
13843 * @pid: pointer to PCI device identifier
13845 * This routine is to be called to attach a device with SLI-3 interface spec
13846 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
13847 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
13848 * information of the device and driver to see if the driver state that it can
13849 * support this kind of device. If the match is successful, the driver core
13850 * invokes this routine. If this routine determines it can claim the HBA, it
13851 * does all the initialization that it needs to do to handle the HBA properly.
13854 * 0 - driver can claim the device
13855 * negative value - driver can not claim the device
13858 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
13860 struct lpfc_hba *phba;
13861 struct lpfc_vport *vport = NULL;
13862 struct Scsi_Host *shost = NULL;
13864 uint32_t cfg_mode, intr_mode;
13866 /* Allocate memory for HBA structure */
13867 phba = lpfc_hba_alloc(pdev);
13871 /* Perform generic PCI device enabling operation */
13872 error = lpfc_enable_pci_dev(phba);
13874 goto out_free_phba;
13876 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
13877 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
13879 goto out_disable_pci_dev;
13881 /* Set up SLI-3 specific device PCI memory space */
13882 error = lpfc_sli_pci_mem_setup(phba);
13884 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13885 "1402 Failed to set up pci memory space.\n");
13886 goto out_disable_pci_dev;
13889 /* Set up SLI-3 specific device driver resources */
13890 error = lpfc_sli_driver_resource_setup(phba);
13892 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13893 "1404 Failed to set up driver resource.\n");
13894 goto out_unset_pci_mem_s3;
13897 /* Initialize and populate the iocb list per host */
13899 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
13901 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13902 "1405 Failed to initialize iocb list.\n");
13903 goto out_unset_driver_resource_s3;
13906 /* Set up common device driver resources */
13907 error = lpfc_setup_driver_resource_phase2(phba);
13909 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13910 "1406 Failed to set up driver resource.\n");
13911 goto out_free_iocb_list;
13914 /* Get the default values for Model Name and Description */
13915 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
13917 /* Create SCSI host to the physical port */
13918 error = lpfc_create_shost(phba);
13920 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13921 "1407 Failed to create scsi host.\n");
13922 goto out_unset_driver_resource;
13925 /* Configure sysfs attributes */
13926 vport = phba->pport;
13927 error = lpfc_alloc_sysfs_attr(vport);
13929 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13930 "1476 Failed to allocate sysfs attr\n");
13931 goto out_destroy_shost;
13934 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
13935 /* Now, trying to enable interrupt and bring up the device */
13936 cfg_mode = phba->cfg_use_msi;
13938 /* Put device to a known state before enabling interrupt */
13939 lpfc_stop_port(phba);
13940 /* Configure and enable interrupt */
13941 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
13942 if (intr_mode == LPFC_INTR_ERROR) {
13943 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13944 "0431 Failed to enable interrupt.\n");
13946 goto out_free_sysfs_attr;
13948 /* SLI-3 HBA setup */
13949 if (lpfc_sli_hba_setup(phba)) {
13950 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13951 "1477 Failed to set up hba\n");
13953 goto out_remove_device;
13956 /* Wait 50ms for the interrupts of previous mailbox commands */
13958 /* Check active interrupts on message signaled interrupts */
13959 if (intr_mode == 0 ||
13960 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
13961 /* Log the current active interrupt mode */
13962 phba->intr_mode = intr_mode;
13963 lpfc_log_intr_mode(phba, intr_mode);
13966 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13967 "0447 Configure interrupt mode (%d) "
13968 "failed active interrupt test.\n",
13970 /* Disable the current interrupt mode */
13971 lpfc_sli_disable_intr(phba);
13972 /* Try next level of interrupt mode */
13973 cfg_mode = --intr_mode;
13977 /* Perform post initialization setup */
13978 lpfc_post_init_setup(phba);
13980 /* Check if there are static vports to be created. */
13981 lpfc_create_static_vport(phba);
13986 lpfc_unset_hba(phba);
13987 out_free_sysfs_attr:
13988 lpfc_free_sysfs_attr(vport);
13990 lpfc_destroy_shost(phba);
13991 out_unset_driver_resource:
13992 lpfc_unset_driver_resource_phase2(phba);
13993 out_free_iocb_list:
13994 lpfc_free_iocb_list(phba);
13995 out_unset_driver_resource_s3:
13996 lpfc_sli_driver_resource_unset(phba);
13997 out_unset_pci_mem_s3:
13998 lpfc_sli_pci_mem_unset(phba);
13999 out_disable_pci_dev:
14000 lpfc_disable_pci_dev(phba);
14002 scsi_host_put(shost);
14004 lpfc_hba_free(phba);
14009 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
14010 * @pdev: pointer to PCI device
14012 * This routine is to be called to disattach a device with SLI-3 interface
14013 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
14014 * removed from PCI bus, it performs all the necessary cleanup for the HBA
14015 * device to be removed from the PCI subsystem properly.
14018 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
14020 struct Scsi_Host *shost = pci_get_drvdata(pdev);
14021 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
14022 struct lpfc_vport **vports;
14023 struct lpfc_hba *phba = vport->phba;
14026 spin_lock_irq(&phba->hbalock);
14027 vport->load_flag |= FC_UNLOADING;
14028 spin_unlock_irq(&phba->hbalock);
14030 lpfc_free_sysfs_attr(vport);
14032 /* Release all the vports against this physical port */
14033 vports = lpfc_create_vport_work_array(phba);
14034 if (vports != NULL)
14035 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
14036 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
14038 fc_vport_terminate(vports[i]->fc_vport);
14040 lpfc_destroy_vport_work_array(phba, vports);
14042 /* Remove FC host with the physical port */
14043 fc_remove_host(shost);
14044 scsi_remove_host(shost);
14046 /* Clean up all nodes, mailboxes and IOs. */
14047 lpfc_cleanup(vport);
14050 * Bring down the SLI Layer. This step disable all interrupts,
14051 * clears the rings, discards all mailbox commands, and resets
14055 /* HBA interrupt will be disabled after this call */
14056 lpfc_sli_hba_down(phba);
14057 /* Stop kthread signal shall trigger work_done one more time */
14058 kthread_stop(phba->worker_thread);
14059 /* Final cleanup of txcmplq and reset the HBA */
14060 lpfc_sli_brdrestart(phba);
14062 kfree(phba->vpi_bmask);
14063 kfree(phba->vpi_ids);
14065 lpfc_stop_hba_timers(phba);
14066 spin_lock_irq(&phba->port_list_lock);
14067 list_del_init(&vport->listentry);
14068 spin_unlock_irq(&phba->port_list_lock);
14070 lpfc_debugfs_terminate(vport);
14072 /* Disable SR-IOV if enabled */
14073 if (phba->cfg_sriov_nr_virtfn)
14074 pci_disable_sriov(pdev);
14076 /* Disable interrupt */
14077 lpfc_sli_disable_intr(phba);
14079 scsi_host_put(shost);
14082 * Call scsi_free before mem_free since scsi bufs are released to their
14083 * corresponding pools here.
14085 lpfc_scsi_free(phba);
14086 lpfc_free_iocb_list(phba);
14088 lpfc_mem_free_all(phba);
14090 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
14091 phba->hbqslimp.virt, phba->hbqslimp.phys);
14093 /* Free resources associated with SLI2 interface */
14094 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
14095 phba->slim2p.virt, phba->slim2p.phys);
14097 /* unmap adapter SLIM and Control Registers */
14098 iounmap(phba->ctrl_regs_memmap_p);
14099 iounmap(phba->slim_memmap_p);
14101 lpfc_hba_free(phba);
14103 pci_release_mem_regions(pdev);
14104 pci_disable_device(pdev);
14108 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
14109 * @dev_d: pointer to device
14111 * This routine is to be called from the kernel's PCI subsystem to support
14112 * system Power Management (PM) to device with SLI-3 interface spec. When
14113 * PM invokes this method, it quiesces the device by stopping the driver's
14114 * worker thread for the device, turning off device's interrupt and DMA,
14115 * and bring the device offline. Note that as the driver implements the
14116 * minimum PM requirements to a power-aware driver's PM support for the
14117 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
14118 * to the suspend() method call will be treated as SUSPEND and the driver will
14119 * fully reinitialize its device during resume() method call, the driver will
14120 * set device to PCI_D3hot state in PCI config space instead of setting it
14121 * according to the @msg provided by the PM.
14124 * 0 - driver suspended the device
14127 static int __maybe_unused
14128 lpfc_pci_suspend_one_s3(struct device *dev_d)
14130 struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14131 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14133 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14134 "0473 PCI device Power Management suspend.\n");
14136 /* Bring down the device */
14137 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14138 lpfc_offline(phba);
14139 kthread_stop(phba->worker_thread);
14141 /* Disable interrupt from device */
14142 lpfc_sli_disable_intr(phba);
14148 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
14149 * @dev_d: pointer to device
14151 * This routine is to be called from the kernel's PCI subsystem to support
14152 * system Power Management (PM) to device with SLI-3 interface spec. When PM
14153 * invokes this method, it restores the device's PCI config space state and
14154 * fully reinitializes the device and brings it online. Note that as the
14155 * driver implements the minimum PM requirements to a power-aware driver's
14156 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
14157 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
14158 * driver will fully reinitialize its device during resume() method call,
14159 * the device will be set to PCI_D0 directly in PCI config space before
14160 * restoring the state.
14163 * 0 - driver suspended the device
14166 static int __maybe_unused
14167 lpfc_pci_resume_one_s3(struct device *dev_d)
14169 struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14170 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14171 uint32_t intr_mode;
14174 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14175 "0452 PCI device Power Management resume.\n");
14177 /* Startup the kernel thread for this host adapter. */
14178 phba->worker_thread = kthread_run(lpfc_do_work, phba,
14179 "lpfc_worker_%d", phba->brd_no);
14180 if (IS_ERR(phba->worker_thread)) {
14181 error = PTR_ERR(phba->worker_thread);
14182 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14183 "0434 PM resume failed to start worker "
14184 "thread: error=x%x.\n", error);
14188 /* Init cpu_map array */
14189 lpfc_cpu_map_array_init(phba);
14190 /* Init hba_eq_hdl array */
14191 lpfc_hba_eq_hdl_array_init(phba);
14192 /* Configure and enable interrupt */
14193 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
14194 if (intr_mode == LPFC_INTR_ERROR) {
14195 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14196 "0430 PM resume Failed to enable interrupt\n");
14199 phba->intr_mode = intr_mode;
14201 /* Restart HBA and bring it online */
14202 lpfc_sli_brdrestart(phba);
14205 /* Log the current active interrupt mode */
14206 lpfc_log_intr_mode(phba, phba->intr_mode);
14212 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
14213 * @phba: pointer to lpfc hba data structure.
14215 * This routine is called to prepare the SLI3 device for PCI slot recover. It
14216 * aborts all the outstanding SCSI I/Os to the pci device.
14219 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
14221 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14222 "2723 PCI channel I/O abort preparing for recovery\n");
14225 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
14226 * and let the SCSI mid-layer to retry them to recover.
14228 lpfc_sli_abort_fcp_rings(phba);
14232 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
14233 * @phba: pointer to lpfc hba data structure.
14235 * This routine is called to prepare the SLI3 device for PCI slot reset. It
14236 * disables the device interrupt and pci device, and aborts the internal FCP
14240 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
14242 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14243 "2710 PCI channel disable preparing for reset\n");
14245 /* Block any management I/Os to the device */
14246 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
14248 /* Block all SCSI devices' I/Os on the host */
14249 lpfc_scsi_dev_block(phba);
14251 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
14252 lpfc_sli_flush_io_rings(phba);
14254 /* stop all timers */
14255 lpfc_stop_hba_timers(phba);
14257 /* Disable interrupt and pci device */
14258 lpfc_sli_disable_intr(phba);
14259 pci_disable_device(phba->pcidev);
14263 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
14264 * @phba: pointer to lpfc hba data structure.
14266 * This routine is called to prepare the SLI3 device for PCI slot permanently
14267 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
14271 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
14273 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14274 "2711 PCI channel permanent disable for failure\n");
14275 /* Block all SCSI devices' I/Os on the host */
14276 lpfc_scsi_dev_block(phba);
14278 /* stop all timers */
14279 lpfc_stop_hba_timers(phba);
14281 /* Clean up all driver's outstanding SCSI I/Os */
14282 lpfc_sli_flush_io_rings(phba);
14286 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
14287 * @pdev: pointer to PCI device.
14288 * @state: the current PCI connection state.
14290 * This routine is called from the PCI subsystem for I/O error handling to
14291 * device with SLI-3 interface spec. This function is called by the PCI
14292 * subsystem after a PCI bus error affecting this device has been detected.
14293 * When this function is invoked, it will need to stop all the I/Os and
14294 * interrupt(s) to the device. Once that is done, it will return
14295 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
14299 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
14300 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
14301 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
14303 static pci_ers_result_t
14304 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
14306 struct Scsi_Host *shost = pci_get_drvdata(pdev);
14307 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14310 case pci_channel_io_normal:
14311 /* Non-fatal error, prepare for recovery */
14312 lpfc_sli_prep_dev_for_recover(phba);
14313 return PCI_ERS_RESULT_CAN_RECOVER;
14314 case pci_channel_io_frozen:
14315 /* Fatal error, prepare for slot reset */
14316 lpfc_sli_prep_dev_for_reset(phba);
14317 return PCI_ERS_RESULT_NEED_RESET;
14318 case pci_channel_io_perm_failure:
14319 /* Permanent failure, prepare for device down */
14320 lpfc_sli_prep_dev_for_perm_failure(phba);
14321 return PCI_ERS_RESULT_DISCONNECT;
14323 /* Unknown state, prepare and request slot reset */
14324 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14325 "0472 Unknown PCI error state: x%x\n", state);
14326 lpfc_sli_prep_dev_for_reset(phba);
14327 return PCI_ERS_RESULT_NEED_RESET;
14332 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
14333 * @pdev: pointer to PCI device.
14335 * This routine is called from the PCI subsystem for error handling to
14336 * device with SLI-3 interface spec. This is called after PCI bus has been
14337 * reset to restart the PCI card from scratch, as if from a cold-boot.
14338 * During the PCI subsystem error recovery, after driver returns
14339 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
14340 * recovery and then call this routine before calling the .resume method
14341 * to recover the device. This function will initialize the HBA device,
14342 * enable the interrupt, but it will just put the HBA to offline state
14343 * without passing any I/O traffic.
14346 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
14347 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
14349 static pci_ers_result_t
14350 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
14352 struct Scsi_Host *shost = pci_get_drvdata(pdev);
14353 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14354 struct lpfc_sli *psli = &phba->sli;
14355 uint32_t intr_mode;
14357 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
14358 if (pci_enable_device_mem(pdev)) {
14359 printk(KERN_ERR "lpfc: Cannot re-enable "
14360 "PCI device after reset.\n");
14361 return PCI_ERS_RESULT_DISCONNECT;
14364 pci_restore_state(pdev);
14367 * As the new kernel behavior of pci_restore_state() API call clears
14368 * device saved_state flag, need to save the restored state again.
14370 pci_save_state(pdev);
14372 if (pdev->is_busmaster)
14373 pci_set_master(pdev);
14375 spin_lock_irq(&phba->hbalock);
14376 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
14377 spin_unlock_irq(&phba->hbalock);
14379 /* Configure and enable interrupt */
14380 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
14381 if (intr_mode == LPFC_INTR_ERROR) {
14382 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14383 "0427 Cannot re-enable interrupt after "
14385 return PCI_ERS_RESULT_DISCONNECT;
14387 phba->intr_mode = intr_mode;
14389 /* Take device offline, it will perform cleanup */
14390 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14391 lpfc_offline(phba);
14392 lpfc_sli_brdrestart(phba);
14394 /* Log the current active interrupt mode */
14395 lpfc_log_intr_mode(phba, phba->intr_mode);
14397 return PCI_ERS_RESULT_RECOVERED;
14401 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
14402 * @pdev: pointer to PCI device
14404 * This routine is called from the PCI subsystem for error handling to device
14405 * with SLI-3 interface spec. It is called when kernel error recovery tells
14406 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
14407 * error recovery. After this call, traffic can start to flow from this device
14411 lpfc_io_resume_s3(struct pci_dev *pdev)
14413 struct Scsi_Host *shost = pci_get_drvdata(pdev);
14414 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14416 /* Bring device online, it will be no-op for non-fatal error resume */
14421 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
14422 * @phba: pointer to lpfc hba data structure.
14424 * returns the number of ELS/CT IOCBs to reserve
14427 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
14429 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
14431 if (phba->sli_rev == LPFC_SLI_REV4) {
14432 if (max_xri <= 100)
14434 else if (max_xri <= 256)
14436 else if (max_xri <= 512)
14438 else if (max_xri <= 1024)
14440 else if (max_xri <= 1536)
14442 else if (max_xri <= 2048)
14451 * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
14452 * @phba: pointer to lpfc hba data structure.
14454 * returns the number of ELS/CT + NVMET IOCBs to reserve
14457 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
14459 int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
14461 if (phba->nvmet_support)
14462 max_xri += LPFC_NVMET_BUF_POST;
14468 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
14469 uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
14470 const struct firmware *fw)
14475 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
14476 /* Three cases: (1) FW was not supported on the detected adapter.
14477 * (2) FW update has been locked out administratively.
14478 * (3) Some other error during FW update.
14479 * In each case, an unmaskable message is written to the console
14480 * for admin diagnosis.
14482 if (offset == ADD_STATUS_FW_NOT_SUPPORTED ||
14483 (sli_family == LPFC_SLI_INTF_FAMILY_G6 &&
14484 magic_number != MAGIC_NUMBER_G6) ||
14485 (sli_family == LPFC_SLI_INTF_FAMILY_G7 &&
14486 magic_number != MAGIC_NUMBER_G7) ||
14487 (sli_family == LPFC_SLI_INTF_FAMILY_G7P &&
14488 magic_number != MAGIC_NUMBER_G7P)) {
14489 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14490 "3030 This firmware version is not supported on"
14491 " this HBA model. Device:%x Magic:%x Type:%x "
14492 "ID:%x Size %d %zd\n",
14493 phba->pcidev->device, magic_number, ftype, fid,
14496 } else if (offset == ADD_STATUS_FW_DOWNLOAD_HW_DISABLED) {
14497 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14498 "3021 Firmware downloads have been prohibited "
14499 "by a system configuration setting on "
14500 "Device:%x Magic:%x Type:%x ID:%x Size %d "
14502 phba->pcidev->device, magic_number, ftype, fid,
14506 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14507 "3022 FW Download failed. Add Status x%x "
14508 "Device:%x Magic:%x Type:%x ID:%x Size %d "
14510 offset, phba->pcidev->device, magic_number,
14511 ftype, fid, fsize, fw->size);
14518 * lpfc_write_firmware - attempt to write a firmware image to the port
14519 * @fw: pointer to firmware image returned from request_firmware.
14520 * @context: pointer to firmware image returned from request_firmware.
14524 lpfc_write_firmware(const struct firmware *fw, void *context)
14526 struct lpfc_hba *phba = (struct lpfc_hba *)context;
14527 char fwrev[FW_REV_STR_SIZE];
14528 struct lpfc_grp_hdr *image;
14529 struct list_head dma_buffer_list;
14531 struct lpfc_dmabuf *dmabuf, *next;
14532 uint32_t offset = 0, temp_offset = 0;
14533 uint32_t magic_number, ftype, fid, fsize;
14535 /* It can be null in no-wait mode, sanity check */
14540 image = (struct lpfc_grp_hdr *)fw->data;
14542 magic_number = be32_to_cpu(image->magic_number);
14543 ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
14544 fid = bf_get_be32(lpfc_grp_hdr_id, image);
14545 fsize = be32_to_cpu(image->size);
14547 INIT_LIST_HEAD(&dma_buffer_list);
14548 lpfc_decode_firmware_rev(phba, fwrev, 1);
14549 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
14550 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14551 "3023 Updating Firmware, Current Version:%s "
14552 "New Version:%s\n",
14553 fwrev, image->revision);
14554 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
14555 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
14561 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
14565 if (!dmabuf->virt) {
14570 list_add_tail(&dmabuf->list, &dma_buffer_list);
14572 while (offset < fw->size) {
14573 temp_offset = offset;
14574 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
14575 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
14576 memcpy(dmabuf->virt,
14577 fw->data + temp_offset,
14578 fw->size - temp_offset);
14579 temp_offset = fw->size;
14582 memcpy(dmabuf->virt, fw->data + temp_offset,
14584 temp_offset += SLI4_PAGE_SIZE;
14586 rc = lpfc_wr_object(phba, &dma_buffer_list,
14587 (fw->size - offset), &offset);
14589 rc = lpfc_log_write_firmware_error(phba, offset,
14600 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14601 "3029 Skipped Firmware update, Current "
14602 "Version:%s New Version:%s\n",
14603 fwrev, image->revision);
14606 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
14607 list_del(&dmabuf->list);
14608 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
14609 dmabuf->virt, dmabuf->phys);
14612 release_firmware(fw);
14615 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14616 "3062 Firmware update error, status %d.\n", rc);
14618 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14619 "3024 Firmware update success: size %d.\n", rc);
14623 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
14624 * @phba: pointer to lpfc hba data structure.
14625 * @fw_upgrade: which firmware to update.
14627 * This routine is called to perform Linux generic firmware upgrade on device
14628 * that supports such feature.
14631 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
14633 uint8_t file_name[ELX_MODEL_NAME_SIZE];
14635 const struct firmware *fw;
14637 /* Only supported on SLI4 interface type 2 for now */
14638 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
14639 LPFC_SLI_INTF_IF_TYPE_2)
14642 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
14644 if (fw_upgrade == INT_FW_UPGRADE) {
14645 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_UEVENT,
14646 file_name, &phba->pcidev->dev,
14647 GFP_KERNEL, (void *)phba,
14648 lpfc_write_firmware);
14649 } else if (fw_upgrade == RUN_FW_UPGRADE) {
14650 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
14652 lpfc_write_firmware(fw, (void *)phba);
14661 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
14662 * @pdev: pointer to PCI device
14663 * @pid: pointer to PCI device identifier
14665 * This routine is called from the kernel's PCI subsystem to device with
14666 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
14667 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
14668 * information of the device and driver to see if the driver state that it
14669 * can support this kind of device. If the match is successful, the driver
14670 * core invokes this routine. If this routine determines it can claim the HBA,
14671 * it does all the initialization that it needs to do to handle the HBA
14675 * 0 - driver can claim the device
14676 * negative value - driver can not claim the device
14679 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
14681 struct lpfc_hba *phba;
14682 struct lpfc_vport *vport = NULL;
14683 struct Scsi_Host *shost = NULL;
14685 uint32_t cfg_mode, intr_mode;
14687 /* Allocate memory for HBA structure */
14688 phba = lpfc_hba_alloc(pdev);
14692 INIT_LIST_HEAD(&phba->poll_list);
14694 /* Perform generic PCI device enabling operation */
14695 error = lpfc_enable_pci_dev(phba);
14697 goto out_free_phba;
14699 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
14700 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
14702 goto out_disable_pci_dev;
14704 /* Set up SLI-4 specific device PCI memory space */
14705 error = lpfc_sli4_pci_mem_setup(phba);
14707 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14708 "1410 Failed to set up pci memory space.\n");
14709 goto out_disable_pci_dev;
14712 /* Set up SLI-4 Specific device driver resources */
14713 error = lpfc_sli4_driver_resource_setup(phba);
14715 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14716 "1412 Failed to set up driver resource.\n");
14717 goto out_unset_pci_mem_s4;
14720 INIT_LIST_HEAD(&phba->active_rrq_list);
14721 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
14723 /* Set up common device driver resources */
14724 error = lpfc_setup_driver_resource_phase2(phba);
14726 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14727 "1414 Failed to set up driver resource.\n");
14728 goto out_unset_driver_resource_s4;
14731 /* Get the default values for Model Name and Description */
14732 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
14734 /* Now, trying to enable interrupt and bring up the device */
14735 cfg_mode = phba->cfg_use_msi;
14737 /* Put device to a known state before enabling interrupt */
14738 phba->pport = NULL;
14739 lpfc_stop_port(phba);
14741 /* Init cpu_map array */
14742 lpfc_cpu_map_array_init(phba);
14744 /* Init hba_eq_hdl array */
14745 lpfc_hba_eq_hdl_array_init(phba);
14747 /* Configure and enable interrupt */
14748 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
14749 if (intr_mode == LPFC_INTR_ERROR) {
14750 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14751 "0426 Failed to enable interrupt.\n");
14753 goto out_unset_driver_resource;
14755 /* Default to single EQ for non-MSI-X */
14756 if (phba->intr_type != MSIX) {
14757 phba->cfg_irq_chann = 1;
14758 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
14759 if (phba->nvmet_support)
14760 phba->cfg_nvmet_mrq = 1;
14763 lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
14765 /* Create SCSI host to the physical port */
14766 error = lpfc_create_shost(phba);
14768 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14769 "1415 Failed to create scsi host.\n");
14770 goto out_disable_intr;
14772 vport = phba->pport;
14773 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
14775 /* Configure sysfs attributes */
14776 error = lpfc_alloc_sysfs_attr(vport);
14778 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14779 "1416 Failed to allocate sysfs attr\n");
14780 goto out_destroy_shost;
14783 /* Set up SLI-4 HBA */
14784 if (lpfc_sli4_hba_setup(phba)) {
14785 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14786 "1421 Failed to set up hba\n");
14788 goto out_free_sysfs_attr;
14791 /* Log the current active interrupt mode */
14792 phba->intr_mode = intr_mode;
14793 lpfc_log_intr_mode(phba, intr_mode);
14795 /* Perform post initialization setup */
14796 lpfc_post_init_setup(phba);
14798 /* NVME support in FW earlier in the driver load corrects the
14799 * FC4 type making a check for nvme_support unnecessary.
14801 if (phba->nvmet_support == 0) {
14802 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
14803 /* Create NVME binding with nvme_fc_transport. This
14804 * ensures the vport is initialized. If the localport
14805 * create fails, it should not unload the driver to
14806 * support field issues.
14808 error = lpfc_nvme_create_localport(vport);
14810 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14811 "6004 NVME registration "
14812 "failed, error x%x\n",
14818 /* check for firmware upgrade or downgrade */
14819 if (phba->cfg_request_firmware_upgrade)
14820 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
14822 /* Check if there are static vports to be created. */
14823 lpfc_create_static_vport(phba);
14825 /* Enable RAS FW log support */
14826 lpfc_sli4_ras_setup(phba);
14828 timer_setup(&phba->cpuhp_poll_timer, lpfc_sli4_poll_hbtimer, 0);
14829 cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state, &phba->cpuhp);
14833 out_free_sysfs_attr:
14834 lpfc_free_sysfs_attr(vport);
14836 lpfc_destroy_shost(phba);
14838 lpfc_sli4_disable_intr(phba);
14839 out_unset_driver_resource:
14840 lpfc_unset_driver_resource_phase2(phba);
14841 out_unset_driver_resource_s4:
14842 lpfc_sli4_driver_resource_unset(phba);
14843 out_unset_pci_mem_s4:
14844 lpfc_sli4_pci_mem_unset(phba);
14845 out_disable_pci_dev:
14846 lpfc_disable_pci_dev(phba);
14848 scsi_host_put(shost);
14850 lpfc_hba_free(phba);
14855 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
14856 * @pdev: pointer to PCI device
14858 * This routine is called from the kernel's PCI subsystem to device with
14859 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
14860 * removed from PCI bus, it performs all the necessary cleanup for the HBA
14861 * device to be removed from the PCI subsystem properly.
14864 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
14866 struct Scsi_Host *shost = pci_get_drvdata(pdev);
14867 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
14868 struct lpfc_vport **vports;
14869 struct lpfc_hba *phba = vport->phba;
14872 /* Mark the device unloading flag */
14873 spin_lock_irq(&phba->hbalock);
14874 vport->load_flag |= FC_UNLOADING;
14875 spin_unlock_irq(&phba->hbalock);
14877 lpfc_unreg_congestion_buf(phba);
14879 lpfc_free_sysfs_attr(vport);
14881 /* Release all the vports against this physical port */
14882 vports = lpfc_create_vport_work_array(phba);
14883 if (vports != NULL)
14884 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
14885 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
14887 fc_vport_terminate(vports[i]->fc_vport);
14889 lpfc_destroy_vport_work_array(phba, vports);
14891 /* Remove FC host with the physical port */
14892 fc_remove_host(shost);
14893 scsi_remove_host(shost);
14895 /* Perform ndlp cleanup on the physical port. The nvme and nvmet
14896 * localports are destroyed after to cleanup all transport memory.
14898 lpfc_cleanup(vport);
14899 lpfc_nvmet_destroy_targetport(phba);
14900 lpfc_nvme_destroy_localport(vport);
14902 /* De-allocate multi-XRI pools */
14903 if (phba->cfg_xri_rebalancing)
14904 lpfc_destroy_multixri_pools(phba);
14907 * Bring down the SLI Layer. This step disables all interrupts,
14908 * clears the rings, discards all mailbox commands, and resets
14909 * the HBA FCoE function.
14911 lpfc_debugfs_terminate(vport);
14913 lpfc_stop_hba_timers(phba);
14914 spin_lock_irq(&phba->port_list_lock);
14915 list_del_init(&vport->listentry);
14916 spin_unlock_irq(&phba->port_list_lock);
14918 /* Perform scsi free before driver resource_unset since scsi
14919 * buffers are released to their corresponding pools here.
14921 lpfc_io_free(phba);
14922 lpfc_free_iocb_list(phba);
14923 lpfc_sli4_hba_unset(phba);
14925 lpfc_unset_driver_resource_phase2(phba);
14926 lpfc_sli4_driver_resource_unset(phba);
14928 /* Unmap adapter Control and Doorbell registers */
14929 lpfc_sli4_pci_mem_unset(phba);
14931 /* Release PCI resources and disable device's PCI function */
14932 scsi_host_put(shost);
14933 lpfc_disable_pci_dev(phba);
14935 /* Finally, free the driver's device data structure */
14936 lpfc_hba_free(phba);
14942 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
14943 * @dev_d: pointer to device
14945 * This routine is called from the kernel's PCI subsystem to support system
14946 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
14947 * this method, it quiesces the device by stopping the driver's worker
14948 * thread for the device, turning off device's interrupt and DMA, and bring
14949 * the device offline. Note that as the driver implements the minimum PM
14950 * requirements to a power-aware driver's PM support for suspend/resume -- all
14951 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
14952 * method call will be treated as SUSPEND and the driver will fully
14953 * reinitialize its device during resume() method call, the driver will set
14954 * device to PCI_D3hot state in PCI config space instead of setting it
14955 * according to the @msg provided by the PM.
14958 * 0 - driver suspended the device
14961 static int __maybe_unused
14962 lpfc_pci_suspend_one_s4(struct device *dev_d)
14964 struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14965 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14967 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14968 "2843 PCI device Power Management suspend.\n");
14970 /* Bring down the device */
14971 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14972 lpfc_offline(phba);
14973 kthread_stop(phba->worker_thread);
14975 /* Disable interrupt from device */
14976 lpfc_sli4_disable_intr(phba);
14977 lpfc_sli4_queue_destroy(phba);
14983 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
14984 * @dev_d: pointer to device
14986 * This routine is called from the kernel's PCI subsystem to support system
14987 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
14988 * this method, it restores the device's PCI config space state and fully
14989 * reinitializes the device and brings it online. Note that as the driver
14990 * implements the minimum PM requirements to a power-aware driver's PM for
14991 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
14992 * to the suspend() method call will be treated as SUSPEND and the driver
14993 * will fully reinitialize its device during resume() method call, the device
14994 * will be set to PCI_D0 directly in PCI config space before restoring the
14998 * 0 - driver suspended the device
15001 static int __maybe_unused
15002 lpfc_pci_resume_one_s4(struct device *dev_d)
15004 struct Scsi_Host *shost = dev_get_drvdata(dev_d);
15005 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15006 uint32_t intr_mode;
15009 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15010 "0292 PCI device Power Management resume.\n");
15012 /* Startup the kernel thread for this host adapter. */
15013 phba->worker_thread = kthread_run(lpfc_do_work, phba,
15014 "lpfc_worker_%d", phba->brd_no);
15015 if (IS_ERR(phba->worker_thread)) {
15016 error = PTR_ERR(phba->worker_thread);
15017 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15018 "0293 PM resume failed to start worker "
15019 "thread: error=x%x.\n", error);
15023 /* Configure and enable interrupt */
15024 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
15025 if (intr_mode == LPFC_INTR_ERROR) {
15026 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15027 "0294 PM resume Failed to enable interrupt\n");
15030 phba->intr_mode = intr_mode;
15032 /* Restart HBA and bring it online */
15033 lpfc_sli_brdrestart(phba);
15036 /* Log the current active interrupt mode */
15037 lpfc_log_intr_mode(phba, phba->intr_mode);
15043 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
15044 * @phba: pointer to lpfc hba data structure.
15046 * This routine is called to prepare the SLI4 device for PCI slot recover. It
15047 * aborts all the outstanding SCSI I/Os to the pci device.
15050 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
15052 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15053 "2828 PCI channel I/O abort preparing for recovery\n");
15055 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
15056 * and let the SCSI mid-layer to retry them to recover.
15058 lpfc_sli_abort_fcp_rings(phba);
15062 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
15063 * @phba: pointer to lpfc hba data structure.
15065 * This routine is called to prepare the SLI4 device for PCI slot reset. It
15066 * disables the device interrupt and pci device, and aborts the internal FCP
15070 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
15072 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15073 "2826 PCI channel disable preparing for reset\n");
15075 /* Block any management I/Os to the device */
15076 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
15078 /* Block all SCSI devices' I/Os on the host */
15079 lpfc_scsi_dev_block(phba);
15081 /* Flush all driver's outstanding I/Os as we are to reset */
15082 lpfc_sli_flush_io_rings(phba);
15084 /* stop all timers */
15085 lpfc_stop_hba_timers(phba);
15087 /* Disable interrupt and pci device */
15088 lpfc_sli4_disable_intr(phba);
15089 lpfc_sli4_queue_destroy(phba);
15090 pci_disable_device(phba->pcidev);
15094 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
15095 * @phba: pointer to lpfc hba data structure.
15097 * This routine is called to prepare the SLI4 device for PCI slot permanently
15098 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
15102 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
15104 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15105 "2827 PCI channel permanent disable for failure\n");
15107 /* Block all SCSI devices' I/Os on the host */
15108 lpfc_scsi_dev_block(phba);
15110 /* stop all timers */
15111 lpfc_stop_hba_timers(phba);
15113 /* Clean up all driver's outstanding I/Os */
15114 lpfc_sli_flush_io_rings(phba);
15118 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
15119 * @pdev: pointer to PCI device.
15120 * @state: the current PCI connection state.
15122 * This routine is called from the PCI subsystem for error handling to device
15123 * with SLI-4 interface spec. This function is called by the PCI subsystem
15124 * after a PCI bus error affecting this device has been detected. When this
15125 * function is invoked, it will need to stop all the I/Os and interrupt(s)
15126 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
15127 * for the PCI subsystem to perform proper recovery as desired.
15130 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
15131 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15133 static pci_ers_result_t
15134 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
15136 struct Scsi_Host *shost = pci_get_drvdata(pdev);
15137 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15140 case pci_channel_io_normal:
15141 /* Non-fatal error, prepare for recovery */
15142 lpfc_sli4_prep_dev_for_recover(phba);
15143 return PCI_ERS_RESULT_CAN_RECOVER;
15144 case pci_channel_io_frozen:
15145 phba->hba_flag |= HBA_PCI_ERR;
15146 /* Fatal error, prepare for slot reset */
15147 lpfc_sli4_prep_dev_for_reset(phba);
15148 return PCI_ERS_RESULT_NEED_RESET;
15149 case pci_channel_io_perm_failure:
15150 phba->hba_flag |= HBA_PCI_ERR;
15151 /* Permanent failure, prepare for device down */
15152 lpfc_sli4_prep_dev_for_perm_failure(phba);
15153 return PCI_ERS_RESULT_DISCONNECT;
15155 phba->hba_flag |= HBA_PCI_ERR;
15156 /* Unknown state, prepare and request slot reset */
15157 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15158 "2825 Unknown PCI error state: x%x\n", state);
15159 lpfc_sli4_prep_dev_for_reset(phba);
15160 return PCI_ERS_RESULT_NEED_RESET;
15165 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
15166 * @pdev: pointer to PCI device.
15168 * This routine is called from the PCI subsystem for error handling to device
15169 * with SLI-4 interface spec. It is called after PCI bus has been reset to
15170 * restart the PCI card from scratch, as if from a cold-boot. During the
15171 * PCI subsystem error recovery, after the driver returns
15172 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
15173 * recovery and then call this routine before calling the .resume method to
15174 * recover the device. This function will initialize the HBA device, enable
15175 * the interrupt, but it will just put the HBA to offline state without
15176 * passing any I/O traffic.
15179 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
15180 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15182 static pci_ers_result_t
15183 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
15185 struct Scsi_Host *shost = pci_get_drvdata(pdev);
15186 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15187 struct lpfc_sli *psli = &phba->sli;
15188 uint32_t intr_mode;
15190 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
15191 if (pci_enable_device_mem(pdev)) {
15192 printk(KERN_ERR "lpfc: Cannot re-enable "
15193 "PCI device after reset.\n");
15194 return PCI_ERS_RESULT_DISCONNECT;
15197 pci_restore_state(pdev);
15199 phba->hba_flag &= ~HBA_PCI_ERR;
15201 * As the new kernel behavior of pci_restore_state() API call clears
15202 * device saved_state flag, need to save the restored state again.
15204 pci_save_state(pdev);
15206 if (pdev->is_busmaster)
15207 pci_set_master(pdev);
15209 spin_lock_irq(&phba->hbalock);
15210 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
15211 spin_unlock_irq(&phba->hbalock);
15213 /* Configure and enable interrupt */
15214 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
15215 if (intr_mode == LPFC_INTR_ERROR) {
15216 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15217 "2824 Cannot re-enable interrupt after "
15219 return PCI_ERS_RESULT_DISCONNECT;
15221 phba->intr_mode = intr_mode;
15222 lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
15224 /* Log the current active interrupt mode */
15225 lpfc_log_intr_mode(phba, phba->intr_mode);
15227 return PCI_ERS_RESULT_RECOVERED;
15231 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
15232 * @pdev: pointer to PCI device
15234 * This routine is called from the PCI subsystem for error handling to device
15235 * with SLI-4 interface spec. It is called when kernel error recovery tells
15236 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
15237 * error recovery. After this call, traffic can start to flow from this device
15241 lpfc_io_resume_s4(struct pci_dev *pdev)
15243 struct Scsi_Host *shost = pci_get_drvdata(pdev);
15244 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15247 * In case of slot reset, as function reset is performed through
15248 * mailbox command which needs DMA to be enabled, this operation
15249 * has to be moved to the io resume phase. Taking device offline
15250 * will perform the necessary cleanup.
15252 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
15253 /* Perform device reset */
15254 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
15255 lpfc_offline(phba);
15256 lpfc_sli_brdrestart(phba);
15257 /* Bring the device back online */
15263 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
15264 * @pdev: pointer to PCI device
15265 * @pid: pointer to PCI device identifier
15267 * This routine is to be registered to the kernel's PCI subsystem. When an
15268 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
15269 * at PCI device-specific information of the device and driver to see if the
15270 * driver state that it can support this kind of device. If the match is
15271 * successful, the driver core invokes this routine. This routine dispatches
15272 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
15273 * do all the initialization that it needs to do to handle the HBA device
15277 * 0 - driver can claim the device
15278 * negative value - driver can not claim the device
15281 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
15284 struct lpfc_sli_intf intf;
15286 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
15289 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
15290 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
15291 rc = lpfc_pci_probe_one_s4(pdev, pid);
15293 rc = lpfc_pci_probe_one_s3(pdev, pid);
15299 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
15300 * @pdev: pointer to PCI device
15302 * This routine is to be registered to the kernel's PCI subsystem. When an
15303 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
15304 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
15305 * remove routine, which will perform all the necessary cleanup for the
15306 * device to be removed from the PCI subsystem properly.
15309 lpfc_pci_remove_one(struct pci_dev *pdev)
15311 struct Scsi_Host *shost = pci_get_drvdata(pdev);
15312 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15314 switch (phba->pci_dev_grp) {
15315 case LPFC_PCI_DEV_LP:
15316 lpfc_pci_remove_one_s3(pdev);
15318 case LPFC_PCI_DEV_OC:
15319 lpfc_pci_remove_one_s4(pdev);
15322 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15323 "1424 Invalid PCI device group: 0x%x\n",
15324 phba->pci_dev_grp);
15331 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
15332 * @dev: pointer to device
15334 * This routine is to be registered to the kernel's PCI subsystem to support
15335 * system Power Management (PM). When PM invokes this method, it dispatches
15336 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
15337 * suspend the device.
15340 * 0 - driver suspended the device
15343 static int __maybe_unused
15344 lpfc_pci_suspend_one(struct device *dev)
15346 struct Scsi_Host *shost = dev_get_drvdata(dev);
15347 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15350 switch (phba->pci_dev_grp) {
15351 case LPFC_PCI_DEV_LP:
15352 rc = lpfc_pci_suspend_one_s3(dev);
15354 case LPFC_PCI_DEV_OC:
15355 rc = lpfc_pci_suspend_one_s4(dev);
15358 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15359 "1425 Invalid PCI device group: 0x%x\n",
15360 phba->pci_dev_grp);
15367 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
15368 * @dev: pointer to device
15370 * This routine is to be registered to the kernel's PCI subsystem to support
15371 * system Power Management (PM). When PM invokes this method, it dispatches
15372 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
15373 * resume the device.
15376 * 0 - driver suspended the device
15379 static int __maybe_unused
15380 lpfc_pci_resume_one(struct device *dev)
15382 struct Scsi_Host *shost = dev_get_drvdata(dev);
15383 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15386 switch (phba->pci_dev_grp) {
15387 case LPFC_PCI_DEV_LP:
15388 rc = lpfc_pci_resume_one_s3(dev);
15390 case LPFC_PCI_DEV_OC:
15391 rc = lpfc_pci_resume_one_s4(dev);
15394 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15395 "1426 Invalid PCI device group: 0x%x\n",
15396 phba->pci_dev_grp);
15403 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
15404 * @pdev: pointer to PCI device.
15405 * @state: the current PCI connection state.
15407 * This routine is registered to the PCI subsystem for error handling. This
15408 * function is called by the PCI subsystem after a PCI bus error affecting
15409 * this device has been detected. When this routine is invoked, it dispatches
15410 * the action to the proper SLI-3 or SLI-4 device error detected handling
15411 * routine, which will perform the proper error detected operation.
15414 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
15415 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15417 static pci_ers_result_t
15418 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
15420 struct Scsi_Host *shost = pci_get_drvdata(pdev);
15421 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15422 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
15424 if (phba->link_state == LPFC_HBA_ERROR &&
15425 phba->hba_flag & HBA_IOQ_FLUSH)
15426 return PCI_ERS_RESULT_NEED_RESET;
15428 switch (phba->pci_dev_grp) {
15429 case LPFC_PCI_DEV_LP:
15430 rc = lpfc_io_error_detected_s3(pdev, state);
15432 case LPFC_PCI_DEV_OC:
15433 rc = lpfc_io_error_detected_s4(pdev, state);
15436 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15437 "1427 Invalid PCI device group: 0x%x\n",
15438 phba->pci_dev_grp);
15445 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
15446 * @pdev: pointer to PCI device.
15448 * This routine is registered to the PCI subsystem for error handling. This
15449 * function is called after PCI bus has been reset to restart the PCI card
15450 * from scratch, as if from a cold-boot. When this routine is invoked, it
15451 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
15452 * routine, which will perform the proper device reset.
15455 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
15456 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15458 static pci_ers_result_t
15459 lpfc_io_slot_reset(struct pci_dev *pdev)
15461 struct Scsi_Host *shost = pci_get_drvdata(pdev);
15462 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15463 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
15465 switch (phba->pci_dev_grp) {
15466 case LPFC_PCI_DEV_LP:
15467 rc = lpfc_io_slot_reset_s3(pdev);
15469 case LPFC_PCI_DEV_OC:
15470 rc = lpfc_io_slot_reset_s4(pdev);
15473 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15474 "1428 Invalid PCI device group: 0x%x\n",
15475 phba->pci_dev_grp);
15482 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
15483 * @pdev: pointer to PCI device
15485 * This routine is registered to the PCI subsystem for error handling. It
15486 * is called when kernel error recovery tells the lpfc driver that it is
15487 * OK to resume normal PCI operation after PCI bus error recovery. When
15488 * this routine is invoked, it dispatches the action to the proper SLI-3
15489 * or SLI-4 device io_resume routine, which will resume the device operation.
15492 lpfc_io_resume(struct pci_dev *pdev)
15494 struct Scsi_Host *shost = pci_get_drvdata(pdev);
15495 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15497 switch (phba->pci_dev_grp) {
15498 case LPFC_PCI_DEV_LP:
15499 lpfc_io_resume_s3(pdev);
15501 case LPFC_PCI_DEV_OC:
15502 lpfc_io_resume_s4(pdev);
15505 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15506 "1429 Invalid PCI device group: 0x%x\n",
15507 phba->pci_dev_grp);
15514 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
15515 * @phba: pointer to lpfc hba data structure.
15517 * This routine checks to see if OAS is supported for this adapter. If
15518 * supported, the configure Flash Optimized Fabric flag is set. Otherwise,
15519 * the enable oas flag is cleared and the pool created for OAS device data
15524 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
15527 if (!phba->cfg_EnableXLane)
15530 if (phba->sli4_hba.pc_sli4_params.oas_supported) {
15534 mempool_destroy(phba->device_data_mem_pool);
15535 phba->device_data_mem_pool = NULL;
15542 * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
15543 * @phba: pointer to lpfc hba data structure.
15545 * This routine checks to see if RAS is supported by the adapter. Check the
15546 * function through which RAS support enablement is to be done.
15549 lpfc_sli4_ras_init(struct lpfc_hba *phba)
15551 /* if ASIC_GEN_NUM >= 0xC) */
15552 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
15553 LPFC_SLI_INTF_IF_TYPE_6) ||
15554 (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
15555 LPFC_SLI_INTF_FAMILY_G6)) {
15556 phba->ras_fwlog.ras_hwsupport = true;
15557 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
15558 phba->cfg_ras_fwlog_buffsize)
15559 phba->ras_fwlog.ras_enabled = true;
15561 phba->ras_fwlog.ras_enabled = false;
15563 phba->ras_fwlog.ras_hwsupport = false;
15568 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
15570 static const struct pci_error_handlers lpfc_err_handler = {
15571 .error_detected = lpfc_io_error_detected,
15572 .slot_reset = lpfc_io_slot_reset,
15573 .resume = lpfc_io_resume,
15576 static SIMPLE_DEV_PM_OPS(lpfc_pci_pm_ops_one,
15577 lpfc_pci_suspend_one,
15578 lpfc_pci_resume_one);
15580 static struct pci_driver lpfc_driver = {
15581 .name = LPFC_DRIVER_NAME,
15582 .id_table = lpfc_id_table,
15583 .probe = lpfc_pci_probe_one,
15584 .remove = lpfc_pci_remove_one,
15585 .shutdown = lpfc_pci_remove_one,
15586 .driver.pm = &lpfc_pci_pm_ops_one,
15587 .err_handler = &lpfc_err_handler,
15590 static const struct file_operations lpfc_mgmt_fop = {
15591 .owner = THIS_MODULE,
15594 static struct miscdevice lpfc_mgmt_dev = {
15595 .minor = MISC_DYNAMIC_MINOR,
15596 .name = "lpfcmgmt",
15597 .fops = &lpfc_mgmt_fop,
15601 * lpfc_init - lpfc module initialization routine
15603 * This routine is to be invoked when the lpfc module is loaded into the
15604 * kernel. The special kernel macro module_init() is used to indicate the
15605 * role of this routine to the kernel as lpfc module entry point.
15609 * -ENOMEM - FC attach transport failed
15610 * all others - failed
15617 pr_info(LPFC_MODULE_DESC "\n");
15618 pr_info(LPFC_COPYRIGHT "\n");
15620 error = misc_register(&lpfc_mgmt_dev);
15622 printk(KERN_ERR "Could not register lpfcmgmt device, "
15623 "misc_register returned with status %d", error);
15626 lpfc_transport_functions.vport_create = lpfc_vport_create;
15627 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
15628 lpfc_transport_template =
15629 fc_attach_transport(&lpfc_transport_functions);
15630 if (lpfc_transport_template == NULL)
15632 lpfc_vport_transport_template =
15633 fc_attach_transport(&lpfc_vport_transport_functions);
15634 if (lpfc_vport_transport_template == NULL) {
15635 fc_release_transport(lpfc_transport_template);
15638 lpfc_wqe_cmd_template();
15639 lpfc_nvmet_cmd_template();
15641 /* Initialize in case vector mapping is needed */
15642 lpfc_present_cpu = num_present_cpus();
15644 lpfc_pldv_detect = false;
15646 error = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN,
15647 "lpfc/sli4:online",
15648 lpfc_cpu_online, lpfc_cpu_offline);
15650 goto cpuhp_failure;
15651 lpfc_cpuhp_state = error;
15653 error = pci_register_driver(&lpfc_driver);
15660 cpuhp_remove_multi_state(lpfc_cpuhp_state);
15662 fc_release_transport(lpfc_transport_template);
15663 fc_release_transport(lpfc_vport_transport_template);
15665 misc_deregister(&lpfc_mgmt_dev);
15670 void lpfc_dmp_dbg(struct lpfc_hba *phba)
15672 unsigned int start_idx;
15673 unsigned int dbg_cnt;
15674 unsigned int temp_idx;
15677 unsigned long rem_nsec, iflags;
15678 bool log_verbose = false;
15679 struct lpfc_vport *port_iterator;
15681 /* Don't dump messages if we explicitly set log_verbose for the
15682 * physical port or any vport.
15684 if (phba->cfg_log_verbose)
15687 spin_lock_irqsave(&phba->port_list_lock, iflags);
15688 list_for_each_entry(port_iterator, &phba->port_list, listentry) {
15689 if (port_iterator->load_flag & FC_UNLOADING)
15691 if (scsi_host_get(lpfc_shost_from_vport(port_iterator))) {
15692 if (port_iterator->cfg_log_verbose)
15693 log_verbose = true;
15695 scsi_host_put(lpfc_shost_from_vport(port_iterator));
15698 spin_unlock_irqrestore(&phba->port_list_lock,
15704 spin_unlock_irqrestore(&phba->port_list_lock, iflags);
15706 if (atomic_cmpxchg(&phba->dbg_log_dmping, 0, 1) != 0)
15709 start_idx = (unsigned int)atomic_read(&phba->dbg_log_idx) % DBG_LOG_SZ;
15710 dbg_cnt = (unsigned int)atomic_read(&phba->dbg_log_cnt);
15713 temp_idx = start_idx;
15714 if (dbg_cnt >= DBG_LOG_SZ) {
15715 dbg_cnt = DBG_LOG_SZ;
15718 if ((start_idx + dbg_cnt) > (DBG_LOG_SZ - 1)) {
15719 temp_idx = (start_idx + dbg_cnt) % DBG_LOG_SZ;
15721 if (start_idx < dbg_cnt)
15722 start_idx = DBG_LOG_SZ - (dbg_cnt - start_idx);
15724 start_idx -= dbg_cnt;
15727 dev_info(&phba->pcidev->dev, "start %d end %d cnt %d\n",
15728 start_idx, temp_idx, dbg_cnt);
15730 for (i = 0; i < dbg_cnt; i++) {
15731 if ((start_idx + i) < DBG_LOG_SZ)
15732 temp_idx = (start_idx + i) % DBG_LOG_SZ;
15735 rem_nsec = do_div(phba->dbg_log[temp_idx].t_ns, NSEC_PER_SEC);
15736 dev_info(&phba->pcidev->dev, "%d: [%5lu.%06lu] %s",
15738 (unsigned long)phba->dbg_log[temp_idx].t_ns,
15740 phba->dbg_log[temp_idx].log);
15743 atomic_set(&phba->dbg_log_cnt, 0);
15744 atomic_set(&phba->dbg_log_dmping, 0);
15748 void lpfc_dbg_print(struct lpfc_hba *phba, const char *fmt, ...)
15752 int dbg_dmping = atomic_read(&phba->dbg_log_dmping);
15753 struct va_format vaf;
15756 va_start(args, fmt);
15757 if (unlikely(dbg_dmping)) {
15760 dev_info(&phba->pcidev->dev, "%pV", &vaf);
15764 idx = (unsigned int)atomic_fetch_add(1, &phba->dbg_log_idx) %
15767 atomic_inc(&phba->dbg_log_cnt);
15769 vscnprintf(phba->dbg_log[idx].log,
15770 sizeof(phba->dbg_log[idx].log), fmt, args);
15773 phba->dbg_log[idx].t_ns = local_clock();
15777 * lpfc_exit - lpfc module removal routine
15779 * This routine is invoked when the lpfc module is removed from the kernel.
15780 * The special kernel macro module_exit() is used to indicate the role of
15781 * this routine to the kernel as lpfc module exit point.
15786 misc_deregister(&lpfc_mgmt_dev);
15787 pci_unregister_driver(&lpfc_driver);
15788 cpuhp_remove_multi_state(lpfc_cpuhp_state);
15789 fc_release_transport(lpfc_transport_template);
15790 fc_release_transport(lpfc_vport_transport_template);
15791 idr_destroy(&lpfc_hba_index);
15794 module_init(lpfc_init);
15795 module_exit(lpfc_exit);
15796 MODULE_LICENSE("GPL");
15797 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
15798 MODULE_AUTHOR("Broadcom");
15799 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);