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_TRACE_EVENT,
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 goto out_free_dmabuf;
5381 * For FCoE Mode: fill in all the topology information we need and call
5382 * the READ_TOPOLOGY completion routine to continue without actually
5383 * sending the READ_TOPOLOGY mailbox command to the port.
5385 /* Initialize completion status */
5387 mb->mbxStatus = MBX_SUCCESS;
5389 /* Parse port fault information field */
5390 lpfc_sli4_parse_latt_fault(phba, acqe_link);
5392 /* Parse and translate link attention fields */
5393 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
5394 la->eventTag = acqe_link->event_tag;
5395 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
5396 bf_set(lpfc_mbx_read_top_link_spd, la,
5397 (bf_get(lpfc_acqe_link_speed, acqe_link)));
5399 /* Fake the the following irrelvant fields */
5400 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
5401 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
5402 bf_set(lpfc_mbx_read_top_il, la, 0);
5403 bf_set(lpfc_mbx_read_top_pb, la, 0);
5404 bf_set(lpfc_mbx_read_top_fa, la, 0);
5405 bf_set(lpfc_mbx_read_top_mm, la, 0);
5407 /* Invoke the lpfc_handle_latt mailbox command callback function */
5408 lpfc_mbx_cmpl_read_topology(phba, pmb);
5415 mempool_free(pmb, phba->mbox_mem_pool);
5419 * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
5421 * @phba: pointer to lpfc hba data structure.
5422 * @speed_code: asynchronous event link speed code.
5424 * This routine is to parse the giving SLI4 async event link speed code into
5425 * value of Read topology link speed.
5427 * Return: link speed in terms of Read topology.
5430 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
5434 switch (speed_code) {
5435 case LPFC_FC_LA_SPEED_1G:
5436 port_speed = LPFC_LINK_SPEED_1GHZ;
5438 case LPFC_FC_LA_SPEED_2G:
5439 port_speed = LPFC_LINK_SPEED_2GHZ;
5441 case LPFC_FC_LA_SPEED_4G:
5442 port_speed = LPFC_LINK_SPEED_4GHZ;
5444 case LPFC_FC_LA_SPEED_8G:
5445 port_speed = LPFC_LINK_SPEED_8GHZ;
5447 case LPFC_FC_LA_SPEED_16G:
5448 port_speed = LPFC_LINK_SPEED_16GHZ;
5450 case LPFC_FC_LA_SPEED_32G:
5451 port_speed = LPFC_LINK_SPEED_32GHZ;
5453 case LPFC_FC_LA_SPEED_64G:
5454 port_speed = LPFC_LINK_SPEED_64GHZ;
5456 case LPFC_FC_LA_SPEED_128G:
5457 port_speed = LPFC_LINK_SPEED_128GHZ;
5459 case LPFC_FC_LA_SPEED_256G:
5460 port_speed = LPFC_LINK_SPEED_256GHZ;
5471 lpfc_cgn_dump_rxmonitor(struct lpfc_hba *phba)
5473 struct rxtable_entry *entry;
5474 int cnt = 0, head, tail, last, start;
5476 head = atomic_read(&phba->rxtable_idx_head);
5477 tail = atomic_read(&phba->rxtable_idx_tail);
5478 if (!phba->rxtable || head == tail) {
5479 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT,
5480 "4411 Rxtable is empty\n");
5486 /* Display the last LPFC_MAX_RXMONITOR_DUMP entries from the rxtable */
5487 while (start != last) {
5491 start = LPFC_MAX_RXMONITOR_ENTRY - 1;
5492 entry = &phba->rxtable[start];
5493 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5494 "4410 %02d: MBPI %lld Xmit %lld Cmpl %lld "
5495 "Lat %lld ASz %lld Info %02d BWUtil %d "
5497 cnt, entry->max_bytes_per_interval,
5498 entry->total_bytes, entry->rcv_bytes,
5499 entry->avg_io_latency, entry->avg_io_size,
5500 entry->cmf_info, entry->timer_utilization,
5501 entry->timer_interval, start);
5503 if (cnt >= LPFC_MAX_RXMONITOR_DUMP)
5509 * lpfc_cgn_update_stat - Save data into congestion stats buffer
5510 * @phba: pointer to lpfc hba data structure.
5511 * @dtag: FPIN descriptor received
5513 * Increment the FPIN received counter/time when it happens.
5516 lpfc_cgn_update_stat(struct lpfc_hba *phba, uint32_t dtag)
5518 struct lpfc_cgn_info *cp;
5520 struct timespec64 cur_time;
5524 /* Make sure we have a congestion info buffer */
5527 cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
5528 ktime_get_real_ts64(&cur_time);
5529 time64_to_tm(cur_time.tv_sec, 0, &broken);
5531 /* Update congestion statistics */
5533 case ELS_DTAG_LNK_INTEGRITY:
5534 cnt = le32_to_cpu(cp->link_integ_notification);
5536 cp->link_integ_notification = cpu_to_le32(cnt);
5538 cp->cgn_stat_lnk_month = broken.tm_mon + 1;
5539 cp->cgn_stat_lnk_day = broken.tm_mday;
5540 cp->cgn_stat_lnk_year = broken.tm_year - 100;
5541 cp->cgn_stat_lnk_hour = broken.tm_hour;
5542 cp->cgn_stat_lnk_min = broken.tm_min;
5543 cp->cgn_stat_lnk_sec = broken.tm_sec;
5545 case ELS_DTAG_DELIVERY:
5546 cnt = le32_to_cpu(cp->delivery_notification);
5548 cp->delivery_notification = cpu_to_le32(cnt);
5550 cp->cgn_stat_del_month = broken.tm_mon + 1;
5551 cp->cgn_stat_del_day = broken.tm_mday;
5552 cp->cgn_stat_del_year = broken.tm_year - 100;
5553 cp->cgn_stat_del_hour = broken.tm_hour;
5554 cp->cgn_stat_del_min = broken.tm_min;
5555 cp->cgn_stat_del_sec = broken.tm_sec;
5557 case ELS_DTAG_PEER_CONGEST:
5558 cnt = le32_to_cpu(cp->cgn_peer_notification);
5560 cp->cgn_peer_notification = cpu_to_le32(cnt);
5562 cp->cgn_stat_peer_month = broken.tm_mon + 1;
5563 cp->cgn_stat_peer_day = broken.tm_mday;
5564 cp->cgn_stat_peer_year = broken.tm_year - 100;
5565 cp->cgn_stat_peer_hour = broken.tm_hour;
5566 cp->cgn_stat_peer_min = broken.tm_min;
5567 cp->cgn_stat_peer_sec = broken.tm_sec;
5569 case ELS_DTAG_CONGESTION:
5570 cnt = le32_to_cpu(cp->cgn_notification);
5572 cp->cgn_notification = cpu_to_le32(cnt);
5574 cp->cgn_stat_cgn_month = broken.tm_mon + 1;
5575 cp->cgn_stat_cgn_day = broken.tm_mday;
5576 cp->cgn_stat_cgn_year = broken.tm_year - 100;
5577 cp->cgn_stat_cgn_hour = broken.tm_hour;
5578 cp->cgn_stat_cgn_min = broken.tm_min;
5579 cp->cgn_stat_cgn_sec = broken.tm_sec;
5581 if (phba->cgn_fpin_frequency &&
5582 phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ) {
5583 value = LPFC_CGN_TIMER_TO_MIN / phba->cgn_fpin_frequency;
5584 cp->cgn_stat_npm = value;
5586 value = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
5587 LPFC_CGN_CRC32_SEED);
5588 cp->cgn_info_crc = cpu_to_le32(value);
5592 * lpfc_cgn_save_evt_cnt - Save data into registered congestion buffer
5593 * @phba: pointer to lpfc hba data structure.
5595 * Save the congestion event data every minute.
5596 * On the hour collapse all the minute data into hour data. Every day
5597 * collapse all the hour data into daily data. Separate driver
5598 * and fabrc congestion event counters that will be saved out
5599 * to the registered congestion buffer every minute.
5602 lpfc_cgn_save_evt_cnt(struct lpfc_hba *phba)
5604 struct lpfc_cgn_info *cp;
5606 struct timespec64 cur_time;
5608 uint16_t value, mvalue;
5611 uint32_t dvalue, wvalue, lvalue, avalue;
5617 /* Make sure we have a congestion info buffer */
5620 cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
5622 if (time_before(jiffies, phba->cgn_evt_timestamp))
5624 phba->cgn_evt_timestamp = jiffies +
5625 msecs_to_jiffies(LPFC_CGN_TIMER_TO_MIN);
5626 phba->cgn_evt_minute++;
5628 /* We should get to this point in the routine on 1 minute intervals */
5630 ktime_get_real_ts64(&cur_time);
5631 time64_to_tm(cur_time.tv_sec, 0, &broken);
5633 if (phba->cgn_fpin_frequency &&
5634 phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ) {
5635 value = LPFC_CGN_TIMER_TO_MIN / phba->cgn_fpin_frequency;
5636 cp->cgn_stat_npm = value;
5639 /* Read and clear the latency counters for this minute */
5640 lvalue = atomic_read(&phba->cgn_latency_evt_cnt);
5641 latsum = atomic64_read(&phba->cgn_latency_evt);
5642 atomic_set(&phba->cgn_latency_evt_cnt, 0);
5643 atomic64_set(&phba->cgn_latency_evt, 0);
5645 /* We need to store MB/sec bandwidth in the congestion information.
5646 * block_cnt is count of 512 byte blocks for the entire minute,
5647 * bps will get bytes per sec before finally converting to MB/sec.
5649 bps = div_u64(phba->rx_block_cnt, LPFC_SEC_MIN) * 512;
5650 phba->rx_block_cnt = 0;
5651 mvalue = bps / (1024 * 1024); /* convert to MB/sec */
5654 /* cgn parameters */
5655 cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
5656 cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
5657 cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
5658 cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
5660 /* Fill in default LUN qdepth */
5661 value = (uint16_t)(phba->pport->cfg_lun_queue_depth);
5662 cp->cgn_lunq = cpu_to_le16(value);
5664 /* Record congestion buffer info - every minute
5665 * cgn_driver_evt_cnt (Driver events)
5666 * cgn_fabric_warn_cnt (Congestion Warnings)
5667 * cgn_latency_evt_cnt / cgn_latency_evt (IO Latency)
5668 * cgn_fabric_alarm_cnt (Congestion Alarms)
5670 index = ++cp->cgn_index_minute;
5671 if (cp->cgn_index_minute == LPFC_MIN_HOUR) {
5672 cp->cgn_index_minute = 0;
5676 /* Get the number of driver events in this sample and reset counter */
5677 dvalue = atomic_read(&phba->cgn_driver_evt_cnt);
5678 atomic_set(&phba->cgn_driver_evt_cnt, 0);
5680 /* Get the number of warning events - FPIN and Signal for this minute */
5682 if ((phba->cgn_reg_fpin & LPFC_CGN_FPIN_WARN) ||
5683 phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
5684 phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5685 wvalue = atomic_read(&phba->cgn_fabric_warn_cnt);
5686 atomic_set(&phba->cgn_fabric_warn_cnt, 0);
5688 /* Get the number of alarm events - FPIN and Signal for this minute */
5690 if ((phba->cgn_reg_fpin & LPFC_CGN_FPIN_ALARM) ||
5691 phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5692 avalue = atomic_read(&phba->cgn_fabric_alarm_cnt);
5693 atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
5695 /* Collect the driver, warning, alarm and latency counts for this
5696 * minute into the driver congestion buffer.
5698 ptr = &cp->cgn_drvr_min[index];
5699 value = (uint16_t)dvalue;
5700 *ptr = cpu_to_le16(value);
5702 ptr = &cp->cgn_warn_min[index];
5703 value = (uint16_t)wvalue;
5704 *ptr = cpu_to_le16(value);
5706 ptr = &cp->cgn_alarm_min[index];
5707 value = (uint16_t)avalue;
5708 *ptr = cpu_to_le16(value);
5710 lptr = &cp->cgn_latency_min[index];
5712 lvalue = (uint32_t)div_u64(latsum, lvalue);
5713 *lptr = cpu_to_le32(lvalue);
5718 /* Collect the bandwidth value into the driver's congesion buffer. */
5719 mptr = &cp->cgn_bw_min[index];
5720 *mptr = cpu_to_le16(mvalue);
5722 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5723 "2418 Congestion Info - minute (%d): %d %d %d %d %d\n",
5724 index, dvalue, wvalue, *lptr, mvalue, avalue);
5727 if ((phba->cgn_evt_minute % LPFC_MIN_HOUR) == 0) {
5728 /* Record congestion buffer info - every hour
5729 * Collapse all minutes into an hour
5731 index = ++cp->cgn_index_hour;
5732 if (cp->cgn_index_hour == LPFC_HOUR_DAY) {
5733 cp->cgn_index_hour = 0;
5743 for (i = 0; i < LPFC_MIN_HOUR; i++) {
5744 dvalue += le16_to_cpu(cp->cgn_drvr_min[i]);
5745 wvalue += le16_to_cpu(cp->cgn_warn_min[i]);
5746 lvalue += le32_to_cpu(cp->cgn_latency_min[i]);
5747 mbps += le16_to_cpu(cp->cgn_bw_min[i]);
5748 avalue += le16_to_cpu(cp->cgn_alarm_min[i]);
5750 if (lvalue) /* Avg of latency averages */
5751 lvalue /= LPFC_MIN_HOUR;
5752 if (mbps) /* Avg of Bandwidth averages */
5753 mvalue = mbps / LPFC_MIN_HOUR;
5755 lptr = &cp->cgn_drvr_hr[index];
5756 *lptr = cpu_to_le32(dvalue);
5757 lptr = &cp->cgn_warn_hr[index];
5758 *lptr = cpu_to_le32(wvalue);
5759 lptr = &cp->cgn_latency_hr[index];
5760 *lptr = cpu_to_le32(lvalue);
5761 mptr = &cp->cgn_bw_hr[index];
5762 *mptr = cpu_to_le16(mvalue);
5763 lptr = &cp->cgn_alarm_hr[index];
5764 *lptr = cpu_to_le32(avalue);
5766 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5767 "2419 Congestion Info - hour "
5768 "(%d): %d %d %d %d %d\n",
5769 index, dvalue, wvalue, lvalue, mvalue, avalue);
5773 if ((phba->cgn_evt_minute % LPFC_MIN_DAY) == 0) {
5774 /* Record congestion buffer info - every hour
5775 * Collapse all hours into a day. Rotate days
5776 * after LPFC_MAX_CGN_DAYS.
5778 index = ++cp->cgn_index_day;
5779 if (cp->cgn_index_day == LPFC_MAX_CGN_DAYS) {
5780 cp->cgn_index_day = 0;
5784 /* Anytime we overwrite daily index 0, after we wrap,
5785 * we will be overwriting the oldest day, so we must
5786 * update the congestion data start time for that day.
5787 * That start time should have previously been saved after
5788 * we wrote the last days worth of data.
5790 if ((phba->hba_flag & HBA_CGN_DAY_WRAP) && index == 0) {
5791 time64_to_tm(phba->cgn_daily_ts.tv_sec, 0, &broken);
5793 cp->cgn_info_month = broken.tm_mon + 1;
5794 cp->cgn_info_day = broken.tm_mday;
5795 cp->cgn_info_year = broken.tm_year - 100;
5796 cp->cgn_info_hour = broken.tm_hour;
5797 cp->cgn_info_minute = broken.tm_min;
5798 cp->cgn_info_second = broken.tm_sec;
5801 (phba, KERN_INFO, LOG_CGN_MGMT,
5802 "2646 CGNInfo idx0 Start Time: "
5803 "%d/%d/%d %d:%d:%d\n",
5804 cp->cgn_info_day, cp->cgn_info_month,
5805 cp->cgn_info_year, cp->cgn_info_hour,
5806 cp->cgn_info_minute, cp->cgn_info_second);
5815 for (i = 0; i < LPFC_HOUR_DAY; i++) {
5816 dvalue += le32_to_cpu(cp->cgn_drvr_hr[i]);
5817 wvalue += le32_to_cpu(cp->cgn_warn_hr[i]);
5818 lvalue += le32_to_cpu(cp->cgn_latency_hr[i]);
5819 mbps += le16_to_cpu(cp->cgn_bw_hr[i]);
5820 avalue += le32_to_cpu(cp->cgn_alarm_hr[i]);
5822 if (lvalue) /* Avg of latency averages */
5823 lvalue /= LPFC_HOUR_DAY;
5824 if (mbps) /* Avg of Bandwidth averages */
5825 mvalue = mbps / LPFC_HOUR_DAY;
5827 lptr = &cp->cgn_drvr_day[index];
5828 *lptr = cpu_to_le32(dvalue);
5829 lptr = &cp->cgn_warn_day[index];
5830 *lptr = cpu_to_le32(wvalue);
5831 lptr = &cp->cgn_latency_day[index];
5832 *lptr = cpu_to_le32(lvalue);
5833 mptr = &cp->cgn_bw_day[index];
5834 *mptr = cpu_to_le16(mvalue);
5835 lptr = &cp->cgn_alarm_day[index];
5836 *lptr = cpu_to_le32(avalue);
5838 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5839 "2420 Congestion Info - daily (%d): "
5841 index, dvalue, wvalue, lvalue, mvalue, avalue);
5843 /* We just wrote LPFC_MAX_CGN_DAYS of data,
5844 * so we are wrapped on any data after this.
5845 * Save this as the start time for the next day.
5847 if (index == (LPFC_MAX_CGN_DAYS - 1)) {
5848 phba->hba_flag |= HBA_CGN_DAY_WRAP;
5849 ktime_get_real_ts64(&phba->cgn_daily_ts);
5853 /* Use the frequency found in the last rcv'ed FPIN */
5854 value = phba->cgn_fpin_frequency;
5855 if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_WARN)
5856 cp->cgn_warn_freq = cpu_to_le16(value);
5857 if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_ALARM)
5858 cp->cgn_alarm_freq = cpu_to_le16(value);
5860 /* Frequency (in ms) Signal Warning/Signal Congestion Notifications
5861 * are received by the HBA
5863 value = phba->cgn_sig_freq;
5865 if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
5866 phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5867 cp->cgn_warn_freq = cpu_to_le16(value);
5868 if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5869 cp->cgn_alarm_freq = cpu_to_le16(value);
5871 lvalue = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
5872 LPFC_CGN_CRC32_SEED);
5873 cp->cgn_info_crc = cpu_to_le32(lvalue);
5877 * lpfc_calc_cmf_latency - latency from start of rxate timer interval
5878 * @phba: The Hba for which this call is being executed.
5880 * The routine calculates the latency from the beginning of the CMF timer
5881 * interval to the current point in time. It is called from IO completion
5882 * when we exceed our Bandwidth limitation for the time interval.
5885 lpfc_calc_cmf_latency(struct lpfc_hba *phba)
5887 struct timespec64 cmpl_time;
5890 ktime_get_real_ts64(&cmpl_time);
5892 /* This routine works on a ms granularity so sec and usec are
5893 * converted accordingly.
5895 if (cmpl_time.tv_sec == phba->cmf_latency.tv_sec) {
5896 msec = (cmpl_time.tv_nsec - phba->cmf_latency.tv_nsec) /
5899 if (cmpl_time.tv_nsec >= phba->cmf_latency.tv_nsec) {
5900 msec = (cmpl_time.tv_sec -
5901 phba->cmf_latency.tv_sec) * MSEC_PER_SEC;
5902 msec += ((cmpl_time.tv_nsec -
5903 phba->cmf_latency.tv_nsec) / NSEC_PER_MSEC);
5905 msec = (cmpl_time.tv_sec - phba->cmf_latency.tv_sec -
5907 msec += (((NSEC_PER_SEC - phba->cmf_latency.tv_nsec) +
5908 cmpl_time.tv_nsec) / NSEC_PER_MSEC);
5915 * lpfc_cmf_timer - This is the timer function for one congestion
5917 * @timer: Pointer to the high resolution timer that expired
5919 static enum hrtimer_restart
5920 lpfc_cmf_timer(struct hrtimer *timer)
5922 struct lpfc_hba *phba = container_of(timer, struct lpfc_hba,
5924 struct rxtable_entry *entry;
5926 uint32_t head, tail;
5927 uint32_t busy, max_read;
5928 uint64_t total, rcv, lat, mbpi, extra;
5929 int timer_interval = LPFC_CMF_INTERVAL;
5931 struct lpfc_cgn_stat *cgs;
5934 /* Only restart the timer if congestion mgmt is on */
5935 if (phba->cmf_active_mode == LPFC_CFG_OFF ||
5936 !phba->cmf_latency.tv_sec) {
5937 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5938 "6224 CMF timer exit: %d %lld\n",
5939 phba->cmf_active_mode,
5940 (uint64_t)phba->cmf_latency.tv_sec);
5941 return HRTIMER_NORESTART;
5944 /* If pport is not ready yet, just exit and wait for
5945 * the next timer cycle to hit.
5950 /* Do not block SCSI IO while in the timer routine since
5951 * total_bytes will be cleared
5953 atomic_set(&phba->cmf_stop_io, 1);
5955 /* First we need to calculate the actual ms between
5956 * the last timer interrupt and this one. We ask for
5957 * LPFC_CMF_INTERVAL, however the actual time may
5958 * vary depending on system overhead.
5960 ms = lpfc_calc_cmf_latency(phba);
5963 /* Immediately after we calculate the time since the last
5964 * timer interrupt, set the start time for the next
5967 ktime_get_real_ts64(&phba->cmf_latency);
5969 phba->cmf_link_byte_count =
5970 div_u64(phba->cmf_max_line_rate * LPFC_CMF_INTERVAL, 1000);
5972 /* Collect all the stats from the prior timer interval */
5977 for_each_present_cpu(cpu) {
5978 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
5979 total += atomic64_xchg(&cgs->total_bytes, 0);
5980 io_cnt += atomic_xchg(&cgs->rx_io_cnt, 0);
5981 lat += atomic64_xchg(&cgs->rx_latency, 0);
5982 rcv += atomic64_xchg(&cgs->rcv_bytes, 0);
5985 /* Before we issue another CMF_SYNC_WQE, retrieve the BW
5986 * returned from the last CMF_SYNC_WQE issued, from
5987 * cmf_last_sync_bw. This will be the target BW for
5988 * this next timer interval.
5990 if (phba->cmf_active_mode == LPFC_CFG_MANAGED &&
5991 phba->link_state != LPFC_LINK_DOWN &&
5992 phba->hba_flag & HBA_SETUP) {
5993 mbpi = phba->cmf_last_sync_bw;
5994 phba->cmf_last_sync_bw = 0;
5997 /* Calculate any extra bytes needed to account for the
5998 * timer accuracy. If we are less than LPFC_CMF_INTERVAL
5999 * add an extra 3% slop factor, equal to LPFC_CMF_INTERVAL
6000 * add an extra 2%. The goal is to equalize total with a
6001 * time > LPFC_CMF_INTERVAL or <= LPFC_CMF_INTERVAL + 1
6003 if (ms == LPFC_CMF_INTERVAL)
6004 extra = div_u64(total, 50);
6005 else if (ms < LPFC_CMF_INTERVAL)
6006 extra = div_u64(total, 33);
6007 lpfc_issue_cmf_sync_wqe(phba, LPFC_CMF_INTERVAL, total + extra);
6009 /* For Monitor mode or link down we want mbpi
6010 * to be the full link speed
6012 mbpi = phba->cmf_link_byte_count;
6014 phba->cmf_timer_cnt++;
6017 /* Update congestion info buffer latency in us */
6018 atomic_add(io_cnt, &phba->cgn_latency_evt_cnt);
6019 atomic64_add(lat, &phba->cgn_latency_evt);
6021 busy = atomic_xchg(&phba->cmf_busy, 0);
6022 max_read = atomic_xchg(&phba->rx_max_read_cnt, 0);
6024 /* Calculate MBPI for the next timer interval */
6026 if (mbpi > phba->cmf_link_byte_count ||
6027 phba->cmf_active_mode == LPFC_CFG_MONITOR)
6028 mbpi = phba->cmf_link_byte_count;
6030 /* Change max_bytes_per_interval to what the prior
6031 * CMF_SYNC_WQE cmpl indicated.
6033 if (mbpi != phba->cmf_max_bytes_per_interval)
6034 phba->cmf_max_bytes_per_interval = mbpi;
6037 /* Save rxmonitor information for debug */
6038 if (phba->rxtable) {
6039 head = atomic_xchg(&phba->rxtable_idx_head,
6040 LPFC_RXMONITOR_TABLE_IN_USE);
6041 entry = &phba->rxtable[head];
6042 entry->total_bytes = total;
6043 entry->rcv_bytes = rcv;
6044 entry->cmf_busy = busy;
6045 entry->cmf_info = phba->cmf_active_info;
6047 entry->avg_io_latency = div_u64(lat, io_cnt);
6048 entry->avg_io_size = div_u64(rcv, io_cnt);
6050 entry->avg_io_latency = 0;
6051 entry->avg_io_size = 0;
6053 entry->max_read_cnt = max_read;
6054 entry->io_cnt = io_cnt;
6055 entry->max_bytes_per_interval = mbpi;
6056 if (phba->cmf_active_mode == LPFC_CFG_MANAGED)
6057 entry->timer_utilization = phba->cmf_last_ts;
6059 entry->timer_utilization = ms;
6060 entry->timer_interval = ms;
6061 phba->cmf_last_ts = 0;
6063 /* Increment rxtable index */
6064 head = (head + 1) % LPFC_MAX_RXMONITOR_ENTRY;
6065 tail = atomic_read(&phba->rxtable_idx_tail);
6067 tail = (tail + 1) % LPFC_MAX_RXMONITOR_ENTRY;
6068 atomic_set(&phba->rxtable_idx_tail, tail);
6070 atomic_set(&phba->rxtable_idx_head, head);
6073 if (phba->cmf_active_mode == LPFC_CFG_MONITOR) {
6074 /* If Monitor mode, check if we are oversubscribed
6075 * against the full line rate.
6077 if (mbpi && total > mbpi)
6078 atomic_inc(&phba->cgn_driver_evt_cnt);
6080 phba->rx_block_cnt += div_u64(rcv, 512); /* save 512 byte block cnt */
6082 /* Each minute save Fabric and Driver congestion information */
6083 lpfc_cgn_save_evt_cnt(phba);
6085 /* Since we need to call lpfc_cgn_save_evt_cnt every minute, on the
6086 * minute, adjust our next timer interval, if needed, to ensure a
6087 * 1 minute granularity when we get the next timer interrupt.
6089 if (time_after(jiffies + msecs_to_jiffies(LPFC_CMF_INTERVAL),
6090 phba->cgn_evt_timestamp)) {
6091 timer_interval = jiffies_to_msecs(phba->cgn_evt_timestamp -
6093 if (timer_interval <= 0)
6094 timer_interval = LPFC_CMF_INTERVAL;
6096 /* If we adjust timer_interval, max_bytes_per_interval
6097 * needs to be adjusted as well.
6099 phba->cmf_link_byte_count = div_u64(phba->cmf_max_line_rate *
6100 timer_interval, 1000);
6101 if (phba->cmf_active_mode == LPFC_CFG_MONITOR)
6102 phba->cmf_max_bytes_per_interval =
6103 phba->cmf_link_byte_count;
6106 /* Since total_bytes has already been zero'ed, its okay to unblock
6107 * after max_bytes_per_interval is setup.
6109 if (atomic_xchg(&phba->cmf_bw_wait, 0))
6110 queue_work(phba->wq, &phba->unblock_request_work);
6112 /* SCSI IO is now unblocked */
6113 atomic_set(&phba->cmf_stop_io, 0);
6116 hrtimer_forward_now(timer,
6117 ktime_set(0, timer_interval * NSEC_PER_MSEC));
6118 return HRTIMER_RESTART;
6121 #define trunk_link_status(__idx)\
6122 bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
6123 ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
6124 "Link up" : "Link down") : "NA"
6125 /* Did port __idx reported an error */
6126 #define trunk_port_fault(__idx)\
6127 bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
6128 (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
6131 lpfc_update_trunk_link_status(struct lpfc_hba *phba,
6132 struct lpfc_acqe_fc_la *acqe_fc)
6134 uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
6135 uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
6137 phba->sli4_hba.link_state.speed =
6138 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
6139 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6141 phba->sli4_hba.link_state.logical_speed =
6142 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
6143 /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
6144 phba->fc_linkspeed =
6145 lpfc_async_link_speed_to_read_top(
6147 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6149 if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
6150 phba->trunk_link.link0.state =
6151 bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
6152 ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6153 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
6155 if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
6156 phba->trunk_link.link1.state =
6157 bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
6158 ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6159 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
6161 if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
6162 phba->trunk_link.link2.state =
6163 bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
6164 ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6165 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
6167 if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
6168 phba->trunk_link.link3.state =
6169 bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
6170 ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6171 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
6174 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6175 "2910 Async FC Trunking Event - Speed:%d\n"
6176 "\tLogical speed:%d "
6177 "port0: %s port1: %s port2: %s port3: %s\n",
6178 phba->sli4_hba.link_state.speed,
6179 phba->sli4_hba.link_state.logical_speed,
6180 trunk_link_status(0), trunk_link_status(1),
6181 trunk_link_status(2), trunk_link_status(3));
6183 if (phba->cmf_active_mode != LPFC_CFG_OFF)
6184 lpfc_cmf_signal_init(phba);
6187 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6188 "3202 trunk error:0x%x (%s) seen on port0:%s "
6190 * SLI-4: We have only 0xA error codes
6191 * defined as of now. print an appropriate
6192 * message in case driver needs to be updated.
6194 "port1:%s port2:%s port3:%s\n", err, err > 0xA ?
6195 "UNDEFINED. update driver." : trunk_errmsg[err],
6196 trunk_port_fault(0), trunk_port_fault(1),
6197 trunk_port_fault(2), trunk_port_fault(3));
6202 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
6203 * @phba: pointer to lpfc hba data structure.
6204 * @acqe_fc: pointer to the async fc completion queue entry.
6206 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
6207 * that the event was received and then issue a read_topology mailbox command so
6208 * that the rest of the driver will treat it the same as SLI3.
6211 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
6213 struct lpfc_dmabuf *mp;
6216 struct lpfc_mbx_read_top *la;
6219 if (bf_get(lpfc_trailer_type, acqe_fc) !=
6220 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
6221 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6222 "2895 Non FC link Event detected.(%d)\n",
6223 bf_get(lpfc_trailer_type, acqe_fc));
6227 if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
6228 LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
6229 lpfc_update_trunk_link_status(phba, acqe_fc);
6233 /* Keep the link status for extra SLI4 state machine reference */
6234 phba->sli4_hba.link_state.speed =
6235 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
6236 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6237 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
6238 phba->sli4_hba.link_state.topology =
6239 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
6240 phba->sli4_hba.link_state.status =
6241 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
6242 phba->sli4_hba.link_state.type =
6243 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
6244 phba->sli4_hba.link_state.number =
6245 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
6246 phba->sli4_hba.link_state.fault =
6247 bf_get(lpfc_acqe_link_fault, acqe_fc);
6249 if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
6250 LPFC_FC_LA_TYPE_LINK_DOWN)
6251 phba->sli4_hba.link_state.logical_speed = 0;
6252 else if (!phba->sli4_hba.conf_trunk)
6253 phba->sli4_hba.link_state.logical_speed =
6254 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
6256 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6257 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
6258 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
6259 "%dMbps Fault:%d\n",
6260 phba->sli4_hba.link_state.speed,
6261 phba->sli4_hba.link_state.topology,
6262 phba->sli4_hba.link_state.status,
6263 phba->sli4_hba.link_state.type,
6264 phba->sli4_hba.link_state.number,
6265 phba->sli4_hba.link_state.logical_speed,
6266 phba->sli4_hba.link_state.fault);
6267 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6269 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6270 "2897 The mboxq allocation failed\n");
6273 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6275 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6276 "2898 The lpfc_dmabuf allocation failed\n");
6279 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
6281 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6282 "2899 The mbuf allocation failed\n");
6283 goto out_free_dmabuf;
6286 /* Cleanup any outstanding ELS commands */
6287 lpfc_els_flush_all_cmd(phba);
6289 /* Block ELS IOCBs until we have done process link event */
6290 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
6292 /* Update link event statistics */
6293 phba->sli.slistat.link_event++;
6295 /* Create lpfc_handle_latt mailbox command from link ACQE */
6296 lpfc_read_topology(phba, pmb, mp);
6297 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
6298 pmb->vport = phba->pport;
6300 if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
6301 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
6303 switch (phba->sli4_hba.link_state.status) {
6304 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
6305 phba->link_flag |= LS_MDS_LINK_DOWN;
6307 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
6308 phba->link_flag |= LS_MDS_LOOPBACK;
6314 /* Initialize completion status */
6316 mb->mbxStatus = MBX_SUCCESS;
6318 /* Parse port fault information field */
6319 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
6321 /* Parse and translate link attention fields */
6322 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
6323 la->eventTag = acqe_fc->event_tag;
6325 if (phba->sli4_hba.link_state.status ==
6326 LPFC_FC_LA_TYPE_UNEXP_WWPN) {
6327 bf_set(lpfc_mbx_read_top_att_type, la,
6328 LPFC_FC_LA_TYPE_UNEXP_WWPN);
6330 bf_set(lpfc_mbx_read_top_att_type, la,
6331 LPFC_FC_LA_TYPE_LINK_DOWN);
6333 /* Invoke the mailbox command callback function */
6334 lpfc_mbx_cmpl_read_topology(phba, pmb);
6339 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
6340 if (rc == MBX_NOT_FINISHED)
6341 goto out_free_dmabuf;
6347 mempool_free(pmb, phba->mbox_mem_pool);
6351 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
6352 * @phba: pointer to lpfc hba data structure.
6353 * @acqe_sli: pointer to the async SLI completion queue entry.
6355 * This routine is to handle the SLI4 asynchronous SLI events.
6358 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
6364 uint8_t operational = 0;
6365 struct temp_event temp_event_data;
6366 struct lpfc_acqe_misconfigured_event *misconfigured;
6367 struct lpfc_acqe_cgn_signal *cgn_signal;
6368 struct Scsi_Host *shost;
6369 struct lpfc_vport **vports;
6372 evt_type = bf_get(lpfc_trailer_type, acqe_sli);
6374 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6375 "2901 Async SLI event - Type:%d, Event Data: x%08x "
6376 "x%08x x%08x x%08x\n", evt_type,
6377 acqe_sli->event_data1, acqe_sli->event_data2,
6378 acqe_sli->reserved, acqe_sli->trailer);
6380 port_name = phba->Port[0];
6381 if (port_name == 0x00)
6382 port_name = '?'; /* get port name is empty */
6385 case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
6386 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6387 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
6388 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
6390 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6391 "3190 Over Temperature:%d Celsius- Port Name %c\n",
6392 acqe_sli->event_data1, port_name);
6394 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
6395 shost = lpfc_shost_from_vport(phba->pport);
6396 fc_host_post_vendor_event(shost, fc_get_event_number(),
6397 sizeof(temp_event_data),
6398 (char *)&temp_event_data,
6399 SCSI_NL_VID_TYPE_PCI
6400 | PCI_VENDOR_ID_EMULEX);
6402 case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
6403 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6404 temp_event_data.event_code = LPFC_NORMAL_TEMP;
6405 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
6407 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6408 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
6409 acqe_sli->event_data1, port_name);
6411 shost = lpfc_shost_from_vport(phba->pport);
6412 fc_host_post_vendor_event(shost, fc_get_event_number(),
6413 sizeof(temp_event_data),
6414 (char *)&temp_event_data,
6415 SCSI_NL_VID_TYPE_PCI
6416 | PCI_VENDOR_ID_EMULEX);
6418 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
6419 misconfigured = (struct lpfc_acqe_misconfigured_event *)
6420 &acqe_sli->event_data1;
6422 /* fetch the status for this port */
6423 switch (phba->sli4_hba.lnk_info.lnk_no) {
6424 case LPFC_LINK_NUMBER_0:
6425 status = bf_get(lpfc_sli_misconfigured_port0_state,
6426 &misconfigured->theEvent);
6427 operational = bf_get(lpfc_sli_misconfigured_port0_op,
6428 &misconfigured->theEvent);
6430 case LPFC_LINK_NUMBER_1:
6431 status = bf_get(lpfc_sli_misconfigured_port1_state,
6432 &misconfigured->theEvent);
6433 operational = bf_get(lpfc_sli_misconfigured_port1_op,
6434 &misconfigured->theEvent);
6436 case LPFC_LINK_NUMBER_2:
6437 status = bf_get(lpfc_sli_misconfigured_port2_state,
6438 &misconfigured->theEvent);
6439 operational = bf_get(lpfc_sli_misconfigured_port2_op,
6440 &misconfigured->theEvent);
6442 case LPFC_LINK_NUMBER_3:
6443 status = bf_get(lpfc_sli_misconfigured_port3_state,
6444 &misconfigured->theEvent);
6445 operational = bf_get(lpfc_sli_misconfigured_port3_op,
6446 &misconfigured->theEvent);
6449 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6451 "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
6452 "event: Invalid link %d",
6453 phba->sli4_hba.lnk_info.lnk_no);
6457 /* Skip if optic state unchanged */
6458 if (phba->sli4_hba.lnk_info.optic_state == status)
6462 case LPFC_SLI_EVENT_STATUS_VALID:
6463 sprintf(message, "Physical Link is functional");
6465 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
6466 sprintf(message, "Optics faulted/incorrectly "
6467 "installed/not installed - Reseat optics, "
6468 "if issue not resolved, replace.");
6470 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
6472 "Optics of two types installed - Remove one "
6473 "optic or install matching pair of optics.");
6475 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
6476 sprintf(message, "Incompatible optics - Replace with "
6477 "compatible optics for card to function.");
6479 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
6480 sprintf(message, "Unqualified optics - Replace with "
6481 "Avago optics for Warranty and Technical "
6482 "Support - Link is%s operational",
6483 (operational) ? " not" : "");
6485 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
6486 sprintf(message, "Uncertified optics - Replace with "
6487 "Avago-certified optics to enable link "
6488 "operation - Link is%s operational",
6489 (operational) ? " not" : "");
6492 /* firmware is reporting a status we don't know about */
6493 sprintf(message, "Unknown event status x%02x", status);
6497 /* Issue READ_CONFIG mbox command to refresh supported speeds */
6498 rc = lpfc_sli4_read_config(phba);
6501 lpfc_printf_log(phba, KERN_ERR,
6503 "3194 Unable to retrieve supported "
6504 "speeds, rc = 0x%x\n", rc);
6506 rc = lpfc_sli4_refresh_params(phba);
6508 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6509 "3174 Unable to update pls support, "
6512 vports = lpfc_create_vport_work_array(phba);
6513 if (vports != NULL) {
6514 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
6516 shost = lpfc_shost_from_vport(vports[i]);
6517 lpfc_host_supported_speeds_set(shost);
6520 lpfc_destroy_vport_work_array(phba, vports);
6522 phba->sli4_hba.lnk_info.optic_state = status;
6523 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6524 "3176 Port Name %c %s\n", port_name, message);
6526 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
6527 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6528 "3192 Remote DPort Test Initiated - "
6529 "Event Data1:x%08x Event Data2: x%08x\n",
6530 acqe_sli->event_data1, acqe_sli->event_data2);
6532 case LPFC_SLI_EVENT_TYPE_PORT_PARAMS_CHG:
6533 /* Call FW to obtain active parms */
6534 lpfc_sli4_cgn_parm_chg_evt(phba);
6536 case LPFC_SLI_EVENT_TYPE_MISCONF_FAWWN:
6537 /* Misconfigured WWN. Reports that the SLI Port is configured
6538 * to use FA-WWN, but the attached device doesn’t support it.
6539 * No driver action is required.
6540 * Event Data1 - N.A, Event Data2 - N.A
6542 lpfc_log_msg(phba, KERN_WARNING, LOG_SLI,
6543 "2699 Misconfigured FA-WWN - Attached device does "
6544 "not support FA-WWN\n");
6546 case LPFC_SLI_EVENT_TYPE_EEPROM_FAILURE:
6547 /* EEPROM failure. No driver action is required */
6548 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6549 "2518 EEPROM failure - "
6550 "Event Data1: x%08x Event Data2: x%08x\n",
6551 acqe_sli->event_data1, acqe_sli->event_data2);
6553 case LPFC_SLI_EVENT_TYPE_CGN_SIGNAL:
6554 if (phba->cmf_active_mode == LPFC_CFG_OFF)
6556 cgn_signal = (struct lpfc_acqe_cgn_signal *)
6557 &acqe_sli->event_data1;
6558 phba->cgn_acqe_cnt++;
6560 cnt = bf_get(lpfc_warn_acqe, cgn_signal);
6561 atomic64_add(cnt, &phba->cgn_acqe_stat.warn);
6562 atomic64_add(cgn_signal->alarm_cnt, &phba->cgn_acqe_stat.alarm);
6564 /* no threshold for CMF, even 1 signal will trigger an event */
6566 /* Alarm overrides warning, so check that first */
6567 if (cgn_signal->alarm_cnt) {
6568 if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
6569 /* Keep track of alarm cnt for cgn_info */
6570 atomic_add(cgn_signal->alarm_cnt,
6571 &phba->cgn_fabric_alarm_cnt);
6572 /* Keep track of alarm cnt for CMF_SYNC_WQE */
6573 atomic_add(cgn_signal->alarm_cnt,
6574 &phba->cgn_sync_alarm_cnt);
6577 /* signal action needs to be taken */
6578 if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
6579 phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
6580 /* Keep track of warning cnt for cgn_info */
6581 atomic_add(cnt, &phba->cgn_fabric_warn_cnt);
6582 /* Keep track of warning cnt for CMF_SYNC_WQE */
6583 atomic_add(cnt, &phba->cgn_sync_warn_cnt);
6588 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6589 "3193 Unrecognized SLI event, type: 0x%x",
6596 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
6597 * @vport: pointer to vport data structure.
6599 * This routine is to perform Clear Virtual Link (CVL) on a vport in
6600 * response to a CVL event.
6602 * Return the pointer to the ndlp with the vport if successful, otherwise
6605 static struct lpfc_nodelist *
6606 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
6608 struct lpfc_nodelist *ndlp;
6609 struct Scsi_Host *shost;
6610 struct lpfc_hba *phba;
6617 ndlp = lpfc_findnode_did(vport, Fabric_DID);
6619 /* Cannot find existing Fabric ndlp, so allocate a new one */
6620 ndlp = lpfc_nlp_init(vport, Fabric_DID);
6623 /* Set the node type */
6624 ndlp->nlp_type |= NLP_FABRIC;
6625 /* Put ndlp onto node list */
6626 lpfc_enqueue_node(vport, ndlp);
6628 if ((phba->pport->port_state < LPFC_FLOGI) &&
6629 (phba->pport->port_state != LPFC_VPORT_FAILED))
6631 /* If virtual link is not yet instantiated ignore CVL */
6632 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
6633 && (vport->port_state != LPFC_VPORT_FAILED))
6635 shost = lpfc_shost_from_vport(vport);
6638 lpfc_linkdown_port(vport);
6639 lpfc_cleanup_pending_mbox(vport);
6640 spin_lock_irq(shost->host_lock);
6641 vport->fc_flag |= FC_VPORT_CVL_RCVD;
6642 spin_unlock_irq(shost->host_lock);
6648 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
6649 * @phba: pointer to lpfc hba data structure.
6651 * This routine is to perform Clear Virtual Link (CVL) on all vports in
6652 * response to a FCF dead event.
6655 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
6657 struct lpfc_vport **vports;
6660 vports = lpfc_create_vport_work_array(phba);
6662 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
6663 lpfc_sli4_perform_vport_cvl(vports[i]);
6664 lpfc_destroy_vport_work_array(phba, vports);
6668 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
6669 * @phba: pointer to lpfc hba data structure.
6670 * @acqe_fip: pointer to the async fcoe completion queue entry.
6672 * This routine is to handle the SLI4 asynchronous fcoe event.
6675 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
6676 struct lpfc_acqe_fip *acqe_fip)
6678 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
6680 struct lpfc_vport *vport;
6681 struct lpfc_nodelist *ndlp;
6682 int active_vlink_present;
6683 struct lpfc_vport **vports;
6686 phba->fc_eventTag = acqe_fip->event_tag;
6687 phba->fcoe_eventtag = acqe_fip->event_tag;
6688 switch (event_type) {
6689 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
6690 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
6691 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
6692 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6693 "2546 New FCF event, evt_tag:x%x, "
6695 acqe_fip->event_tag,
6698 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
6700 "2788 FCF param modified event, "
6701 "evt_tag:x%x, index:x%x\n",
6702 acqe_fip->event_tag,
6704 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
6706 * During period of FCF discovery, read the FCF
6707 * table record indexed by the event to update
6708 * FCF roundrobin failover eligible FCF bmask.
6710 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
6712 "2779 Read FCF (x%x) for updating "
6713 "roundrobin FCF failover bmask\n",
6715 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
6718 /* If the FCF discovery is in progress, do nothing. */
6719 spin_lock_irq(&phba->hbalock);
6720 if (phba->hba_flag & FCF_TS_INPROG) {
6721 spin_unlock_irq(&phba->hbalock);
6724 /* If fast FCF failover rescan event is pending, do nothing */
6725 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
6726 spin_unlock_irq(&phba->hbalock);
6730 /* If the FCF has been in discovered state, do nothing. */
6731 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
6732 spin_unlock_irq(&phba->hbalock);
6735 spin_unlock_irq(&phba->hbalock);
6737 /* Otherwise, scan the entire FCF table and re-discover SAN */
6738 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6739 "2770 Start FCF table scan per async FCF "
6740 "event, evt_tag:x%x, index:x%x\n",
6741 acqe_fip->event_tag, acqe_fip->index);
6742 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
6743 LPFC_FCOE_FCF_GET_FIRST);
6745 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6746 "2547 Issue FCF scan read FCF mailbox "
6747 "command failed (x%x)\n", rc);
6750 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
6751 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6752 "2548 FCF Table full count 0x%x tag 0x%x\n",
6753 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
6754 acqe_fip->event_tag);
6757 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
6758 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
6759 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6760 "2549 FCF (x%x) disconnected from network, "
6761 "tag:x%x\n", acqe_fip->index,
6762 acqe_fip->event_tag);
6764 * If we are in the middle of FCF failover process, clear
6765 * the corresponding FCF bit in the roundrobin bitmap.
6767 spin_lock_irq(&phba->hbalock);
6768 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
6769 (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
6770 spin_unlock_irq(&phba->hbalock);
6771 /* Update FLOGI FCF failover eligible FCF bmask */
6772 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
6775 spin_unlock_irq(&phba->hbalock);
6777 /* If the event is not for currently used fcf do nothing */
6778 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
6782 * Otherwise, request the port to rediscover the entire FCF
6783 * table for a fast recovery from case that the current FCF
6784 * is no longer valid as we are not in the middle of FCF
6785 * failover process already.
6787 spin_lock_irq(&phba->hbalock);
6788 /* Mark the fast failover process in progress */
6789 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
6790 spin_unlock_irq(&phba->hbalock);
6792 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6793 "2771 Start FCF fast failover process due to "
6794 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
6795 "\n", acqe_fip->event_tag, acqe_fip->index);
6796 rc = lpfc_sli4_redisc_fcf_table(phba);
6798 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
6800 "2772 Issue FCF rediscover mailbox "
6801 "command failed, fail through to FCF "
6803 spin_lock_irq(&phba->hbalock);
6804 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
6805 spin_unlock_irq(&phba->hbalock);
6807 * Last resort will fail over by treating this
6808 * as a link down to FCF registration.
6810 lpfc_sli4_fcf_dead_failthrough(phba);
6812 /* Reset FCF roundrobin bmask for new discovery */
6813 lpfc_sli4_clear_fcf_rr_bmask(phba);
6815 * Handling fast FCF failover to a DEAD FCF event is
6816 * considered equalivant to receiving CVL to all vports.
6818 lpfc_sli4_perform_all_vport_cvl(phba);
6821 case LPFC_FIP_EVENT_TYPE_CVL:
6822 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
6823 lpfc_printf_log(phba, KERN_ERR,
6825 "2718 Clear Virtual Link Received for VPI 0x%x"
6826 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
6828 vport = lpfc_find_vport_by_vpid(phba,
6830 ndlp = lpfc_sli4_perform_vport_cvl(vport);
6833 active_vlink_present = 0;
6835 vports = lpfc_create_vport_work_array(phba);
6837 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
6839 if ((!(vports[i]->fc_flag &
6840 FC_VPORT_CVL_RCVD)) &&
6841 (vports[i]->port_state > LPFC_FDISC)) {
6842 active_vlink_present = 1;
6846 lpfc_destroy_vport_work_array(phba, vports);
6850 * Don't re-instantiate if vport is marked for deletion.
6851 * If we are here first then vport_delete is going to wait
6852 * for discovery to complete.
6854 if (!(vport->load_flag & FC_UNLOADING) &&
6855 active_vlink_present) {
6857 * If there are other active VLinks present,
6858 * re-instantiate the Vlink using FDISC.
6860 mod_timer(&ndlp->nlp_delayfunc,
6861 jiffies + msecs_to_jiffies(1000));
6862 spin_lock_irq(&ndlp->lock);
6863 ndlp->nlp_flag |= NLP_DELAY_TMO;
6864 spin_unlock_irq(&ndlp->lock);
6865 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
6866 vport->port_state = LPFC_FDISC;
6869 * Otherwise, we request port to rediscover
6870 * the entire FCF table for a fast recovery
6871 * from possible case that the current FCF
6872 * is no longer valid if we are not already
6873 * in the FCF failover process.
6875 spin_lock_irq(&phba->hbalock);
6876 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
6877 spin_unlock_irq(&phba->hbalock);
6880 /* Mark the fast failover process in progress */
6881 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
6882 spin_unlock_irq(&phba->hbalock);
6883 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
6885 "2773 Start FCF failover per CVL, "
6886 "evt_tag:x%x\n", acqe_fip->event_tag);
6887 rc = lpfc_sli4_redisc_fcf_table(phba);
6889 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
6891 "2774 Issue FCF rediscover "
6892 "mailbox command failed, "
6893 "through to CVL event\n");
6894 spin_lock_irq(&phba->hbalock);
6895 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
6896 spin_unlock_irq(&phba->hbalock);
6898 * Last resort will be re-try on the
6899 * the current registered FCF entry.
6901 lpfc_retry_pport_discovery(phba);
6904 * Reset FCF roundrobin bmask for new
6907 lpfc_sli4_clear_fcf_rr_bmask(phba);
6911 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6912 "0288 Unknown FCoE event type 0x%x event tag "
6913 "0x%x\n", event_type, acqe_fip->event_tag);
6919 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
6920 * @phba: pointer to lpfc hba data structure.
6921 * @acqe_dcbx: pointer to the async dcbx completion queue entry.
6923 * This routine is to handle the SLI4 asynchronous dcbx event.
6926 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
6927 struct lpfc_acqe_dcbx *acqe_dcbx)
6929 phba->fc_eventTag = acqe_dcbx->event_tag;
6930 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6931 "0290 The SLI4 DCBX asynchronous event is not "
6936 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
6937 * @phba: pointer to lpfc hba data structure.
6938 * @acqe_grp5: pointer to the async grp5 completion queue entry.
6940 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
6941 * is an asynchronous notified of a logical link speed change. The Port
6942 * reports the logical link speed in units of 10Mbps.
6945 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
6946 struct lpfc_acqe_grp5 *acqe_grp5)
6948 uint16_t prev_ll_spd;
6950 phba->fc_eventTag = acqe_grp5->event_tag;
6951 phba->fcoe_eventtag = acqe_grp5->event_tag;
6952 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
6953 phba->sli4_hba.link_state.logical_speed =
6954 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
6955 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6956 "2789 GRP5 Async Event: Updating logical link speed "
6957 "from %dMbps to %dMbps\n", prev_ll_spd,
6958 phba->sli4_hba.link_state.logical_speed);
6962 * lpfc_sli4_async_cmstat_evt - Process the asynchronous cmstat event
6963 * @phba: pointer to lpfc hba data structure.
6965 * This routine is to handle the SLI4 asynchronous cmstat event. A cmstat event
6966 * is an asynchronous notification of a request to reset CM stats.
6969 lpfc_sli4_async_cmstat_evt(struct lpfc_hba *phba)
6973 lpfc_init_congestion_stat(phba);
6977 * lpfc_cgn_params_val - Validate FW congestion parameters.
6978 * @phba: pointer to lpfc hba data structure.
6979 * @p_cfg_param: pointer to FW provided congestion parameters.
6981 * This routine validates the congestion parameters passed
6982 * by the FW to the driver via an ACQE event.
6985 lpfc_cgn_params_val(struct lpfc_hba *phba, struct lpfc_cgn_param *p_cfg_param)
6987 spin_lock_irq(&phba->hbalock);
6989 if (!lpfc_rangecheck(p_cfg_param->cgn_param_mode, LPFC_CFG_OFF,
6990 LPFC_CFG_MONITOR)) {
6991 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT,
6992 "6225 CMF mode param out of range: %d\n",
6993 p_cfg_param->cgn_param_mode);
6994 p_cfg_param->cgn_param_mode = LPFC_CFG_OFF;
6997 spin_unlock_irq(&phba->hbalock);
7001 * lpfc_cgn_params_parse - Process a FW cong parm change event
7002 * @phba: pointer to lpfc hba data structure.
7003 * @p_cgn_param: pointer to a data buffer with the FW cong params.
7004 * @len: the size of pdata in bytes.
7006 * This routine validates the congestion management buffer signature
7007 * from the FW, validates the contents and makes corrections for
7008 * valid, in-range values. If the signature magic is correct and
7009 * after parameter validation, the contents are copied to the driver's
7010 * @phba structure. If the magic is incorrect, an error message is
7014 lpfc_cgn_params_parse(struct lpfc_hba *phba,
7015 struct lpfc_cgn_param *p_cgn_param, uint32_t len)
7017 struct lpfc_cgn_info *cp;
7018 uint32_t crc, oldmode;
7020 /* Make sure the FW has encoded the correct magic number to
7021 * validate the congestion parameter in FW memory.
7023 if (p_cgn_param->cgn_param_magic == LPFC_CFG_PARAM_MAGIC_NUM) {
7024 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
7025 "4668 FW cgn parm buffer data: "
7026 "magic 0x%x version %d mode %d "
7027 "level0 %d level1 %d "
7028 "level2 %d byte13 %d "
7029 "byte14 %d byte15 %d "
7030 "byte11 %d byte12 %d activeMode %d\n",
7031 p_cgn_param->cgn_param_magic,
7032 p_cgn_param->cgn_param_version,
7033 p_cgn_param->cgn_param_mode,
7034 p_cgn_param->cgn_param_level0,
7035 p_cgn_param->cgn_param_level1,
7036 p_cgn_param->cgn_param_level2,
7037 p_cgn_param->byte13,
7038 p_cgn_param->byte14,
7039 p_cgn_param->byte15,
7040 p_cgn_param->byte11,
7041 p_cgn_param->byte12,
7042 phba->cmf_active_mode);
7044 oldmode = phba->cmf_active_mode;
7046 /* Any parameters out of range are corrected to defaults
7047 * by this routine. No need to fail.
7049 lpfc_cgn_params_val(phba, p_cgn_param);
7051 /* Parameters are verified, move them into driver storage */
7052 spin_lock_irq(&phba->hbalock);
7053 memcpy(&phba->cgn_p, p_cgn_param,
7054 sizeof(struct lpfc_cgn_param));
7056 /* Update parameters in congestion info buffer now */
7058 cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
7059 cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
7060 cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
7061 cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
7062 cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
7063 crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
7064 LPFC_CGN_CRC32_SEED);
7065 cp->cgn_info_crc = cpu_to_le32(crc);
7067 spin_unlock_irq(&phba->hbalock);
7069 phba->cmf_active_mode = phba->cgn_p.cgn_param_mode;
7073 if (phba->cgn_p.cgn_param_mode != LPFC_CFG_OFF) {
7074 /* Turning CMF on */
7075 lpfc_cmf_start(phba);
7077 if (phba->link_state >= LPFC_LINK_UP) {
7078 phba->cgn_reg_fpin =
7079 phba->cgn_init_reg_fpin;
7080 phba->cgn_reg_signal =
7081 phba->cgn_init_reg_signal;
7082 lpfc_issue_els_edc(phba->pport, 0);
7086 case LPFC_CFG_MANAGED:
7087 switch (phba->cgn_p.cgn_param_mode) {
7089 /* Turning CMF off */
7090 lpfc_cmf_stop(phba);
7091 if (phba->link_state >= LPFC_LINK_UP)
7092 lpfc_issue_els_edc(phba->pport, 0);
7094 case LPFC_CFG_MONITOR:
7095 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
7096 "4661 Switch from MANAGED to "
7098 phba->cmf_max_bytes_per_interval =
7099 phba->cmf_link_byte_count;
7101 /* Resume blocked IO - unblock on workqueue */
7102 queue_work(phba->wq,
7103 &phba->unblock_request_work);
7107 case LPFC_CFG_MONITOR:
7108 switch (phba->cgn_p.cgn_param_mode) {
7110 /* Turning CMF off */
7111 lpfc_cmf_stop(phba);
7112 if (phba->link_state >= LPFC_LINK_UP)
7113 lpfc_issue_els_edc(phba->pport, 0);
7115 case LPFC_CFG_MANAGED:
7116 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
7117 "4662 Switch from MONITOR to "
7119 lpfc_cmf_signal_init(phba);
7125 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7126 "4669 FW cgn parm buf wrong magic 0x%x "
7127 "version %d\n", p_cgn_param->cgn_param_magic,
7128 p_cgn_param->cgn_param_version);
7133 * lpfc_sli4_cgn_params_read - Read and Validate FW congestion parameters.
7134 * @phba: pointer to lpfc hba data structure.
7136 * This routine issues a read_object mailbox command to
7137 * get the congestion management parameters from the FW
7138 * parses it and updates the driver maintained values.
7141 * 0 if the object was empty
7142 * -Eval if an error was encountered
7143 * Count if bytes were read from object
7146 lpfc_sli4_cgn_params_read(struct lpfc_hba *phba)
7149 struct lpfc_cgn_param *p_cgn_param = NULL;
7153 /* Find out if the FW has a new set of congestion parameters. */
7154 len = sizeof(struct lpfc_cgn_param);
7155 pdata = kzalloc(len, GFP_KERNEL);
7156 ret = lpfc_read_object(phba, (char *)LPFC_PORT_CFG_NAME,
7159 /* 0 means no data. A negative means error. A positive means
7160 * bytes were copied.
7163 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7164 "4670 CGN RD OBJ returns no data\n");
7166 } else if (ret < 0) {
7167 /* Some error. Just exit and return it to the caller.*/
7171 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
7172 "6234 READ CGN PARAMS Successful %d\n", len);
7174 /* Parse data pointer over len and update the phba congestion
7175 * parameters with values passed back. The receive rate values
7176 * may have been altered in FW, but take no action here.
7178 p_cgn_param = (struct lpfc_cgn_param *)pdata;
7179 lpfc_cgn_params_parse(phba, p_cgn_param, len);
7187 * lpfc_sli4_cgn_parm_chg_evt - Process a FW congestion param change event
7188 * @phba: pointer to lpfc hba data structure.
7190 * The FW generated Async ACQE SLI event calls this routine when
7191 * the event type is an SLI Internal Port Event and the Event Code
7192 * indicates a change to the FW maintained congestion parameters.
7194 * This routine executes a Read_Object mailbox call to obtain the
7195 * current congestion parameters maintained in FW and corrects
7196 * the driver's active congestion parameters.
7198 * The acqe event is not passed because there is no further data
7201 * Returns nonzero error if event processing encountered an error.
7202 * Zero otherwise for success.
7205 lpfc_sli4_cgn_parm_chg_evt(struct lpfc_hba *phba)
7209 if (!phba->sli4_hba.pc_sli4_params.cmf) {
7210 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7211 "4664 Cgn Evt when E2E off. Drop event\n");
7215 /* If the event is claiming an empty object, it's ok. A write
7216 * could have cleared it. Only error is a negative return
7219 ret = lpfc_sli4_cgn_params_read(phba);
7221 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7222 "4667 Error reading Cgn Params (%d)\n",
7225 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7226 "4673 CGN Event empty object.\n");
7232 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
7233 * @phba: pointer to lpfc hba data structure.
7235 * This routine is invoked by the worker thread to process all the pending
7236 * SLI4 asynchronous events.
7238 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
7240 struct lpfc_cq_event *cq_event;
7241 unsigned long iflags;
7243 /* First, declare the async event has been handled */
7244 spin_lock_irqsave(&phba->hbalock, iflags);
7245 phba->hba_flag &= ~ASYNC_EVENT;
7246 spin_unlock_irqrestore(&phba->hbalock, iflags);
7248 /* Now, handle all the async events */
7249 spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
7250 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
7251 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
7252 cq_event, struct lpfc_cq_event, list);
7253 spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock,
7256 /* Process the asynchronous event */
7257 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
7258 case LPFC_TRAILER_CODE_LINK:
7259 lpfc_sli4_async_link_evt(phba,
7260 &cq_event->cqe.acqe_link);
7262 case LPFC_TRAILER_CODE_FCOE:
7263 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
7265 case LPFC_TRAILER_CODE_DCBX:
7266 lpfc_sli4_async_dcbx_evt(phba,
7267 &cq_event->cqe.acqe_dcbx);
7269 case LPFC_TRAILER_CODE_GRP5:
7270 lpfc_sli4_async_grp5_evt(phba,
7271 &cq_event->cqe.acqe_grp5);
7273 case LPFC_TRAILER_CODE_FC:
7274 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
7276 case LPFC_TRAILER_CODE_SLI:
7277 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
7279 case LPFC_TRAILER_CODE_CMSTAT:
7280 lpfc_sli4_async_cmstat_evt(phba);
7283 lpfc_printf_log(phba, KERN_ERR,
7285 "1804 Invalid asynchronous event code: "
7286 "x%x\n", bf_get(lpfc_trailer_code,
7287 &cq_event->cqe.mcqe_cmpl));
7291 /* Free the completion event processed to the free pool */
7292 lpfc_sli4_cq_event_release(phba, cq_event);
7293 spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
7295 spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
7299 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
7300 * @phba: pointer to lpfc hba data structure.
7302 * This routine is invoked by the worker thread to process FCF table
7303 * rediscovery pending completion event.
7305 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
7309 spin_lock_irq(&phba->hbalock);
7310 /* Clear FCF rediscovery timeout event */
7311 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
7312 /* Clear driver fast failover FCF record flag */
7313 phba->fcf.failover_rec.flag = 0;
7314 /* Set state for FCF fast failover */
7315 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
7316 spin_unlock_irq(&phba->hbalock);
7318 /* Scan FCF table from the first entry to re-discover SAN */
7319 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
7320 "2777 Start post-quiescent FCF table scan\n");
7321 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
7323 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7324 "2747 Issue FCF scan read FCF mailbox "
7325 "command failed 0x%x\n", rc);
7329 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
7330 * @phba: pointer to lpfc hba data structure.
7331 * @dev_grp: The HBA PCI-Device group number.
7333 * This routine is invoked to set up the per HBA PCI-Device group function
7334 * API jump table entries.
7336 * Return: 0 if success, otherwise -ENODEV
7339 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7343 /* Set up lpfc PCI-device group */
7344 phba->pci_dev_grp = dev_grp;
7346 /* The LPFC_PCI_DEV_OC uses SLI4 */
7347 if (dev_grp == LPFC_PCI_DEV_OC)
7348 phba->sli_rev = LPFC_SLI_REV4;
7350 /* Set up device INIT API function jump table */
7351 rc = lpfc_init_api_table_setup(phba, dev_grp);
7354 /* Set up SCSI API function jump table */
7355 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
7358 /* Set up SLI API function jump table */
7359 rc = lpfc_sli_api_table_setup(phba, dev_grp);
7362 /* Set up MBOX API function jump table */
7363 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
7371 * lpfc_log_intr_mode - Log the active interrupt mode
7372 * @phba: pointer to lpfc hba data structure.
7373 * @intr_mode: active interrupt mode adopted.
7375 * This routine it invoked to log the currently used active interrupt mode
7378 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
7380 switch (intr_mode) {
7382 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7383 "0470 Enable INTx interrupt mode.\n");
7386 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7387 "0481 Enabled MSI interrupt mode.\n");
7390 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7391 "0480 Enabled MSI-X interrupt mode.\n");
7394 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7395 "0482 Illegal interrupt mode.\n");
7402 * lpfc_enable_pci_dev - Enable a generic PCI device.
7403 * @phba: pointer to lpfc hba data structure.
7405 * This routine is invoked to enable the PCI device that is common to all
7410 * other values - error
7413 lpfc_enable_pci_dev(struct lpfc_hba *phba)
7415 struct pci_dev *pdev;
7417 /* Obtain PCI device reference */
7421 pdev = phba->pcidev;
7422 /* Enable PCI device */
7423 if (pci_enable_device_mem(pdev))
7425 /* Request PCI resource for the device */
7426 if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
7427 goto out_disable_device;
7428 /* Set up device as PCI master and save state for EEH */
7429 pci_set_master(pdev);
7430 pci_try_set_mwi(pdev);
7431 pci_save_state(pdev);
7433 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
7434 if (pci_is_pcie(pdev))
7435 pdev->needs_freset = 1;
7440 pci_disable_device(pdev);
7442 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7443 "1401 Failed to enable pci device\n");
7448 * lpfc_disable_pci_dev - Disable a generic PCI device.
7449 * @phba: pointer to lpfc hba data structure.
7451 * This routine is invoked to disable the PCI device that is common to all
7455 lpfc_disable_pci_dev(struct lpfc_hba *phba)
7457 struct pci_dev *pdev;
7459 /* Obtain PCI device reference */
7463 pdev = phba->pcidev;
7464 /* Release PCI resource and disable PCI device */
7465 pci_release_mem_regions(pdev);
7466 pci_disable_device(pdev);
7472 * lpfc_reset_hba - Reset a hba
7473 * @phba: pointer to lpfc hba data structure.
7475 * This routine is invoked to reset a hba device. It brings the HBA
7476 * offline, performs a board restart, and then brings the board back
7477 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
7478 * on outstanding mailbox commands.
7481 lpfc_reset_hba(struct lpfc_hba *phba)
7483 /* If resets are disabled then set error state and return. */
7484 if (!phba->cfg_enable_hba_reset) {
7485 phba->link_state = LPFC_HBA_ERROR;
7489 /* If not LPFC_SLI_ACTIVE, force all IO to be flushed */
7490 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) {
7491 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
7493 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
7494 lpfc_sli_flush_io_rings(phba);
7497 lpfc_sli_brdrestart(phba);
7499 lpfc_unblock_mgmt_io(phba);
7503 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
7504 * @phba: pointer to lpfc hba data structure.
7506 * This function enables the PCI SR-IOV virtual functions to a physical
7507 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
7508 * enable the number of virtual functions to the physical function. As
7509 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
7510 * API call does not considered as an error condition for most of the device.
7513 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
7515 struct pci_dev *pdev = phba->pcidev;
7519 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
7523 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
7528 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
7529 * @phba: pointer to lpfc hba data structure.
7530 * @nr_vfn: number of virtual functions to be enabled.
7532 * This function enables the PCI SR-IOV virtual functions to a physical
7533 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
7534 * enable the number of virtual functions to the physical function. As
7535 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
7536 * API call does not considered as an error condition for most of the device.
7539 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
7541 struct pci_dev *pdev = phba->pcidev;
7542 uint16_t max_nr_vfn;
7545 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
7546 if (nr_vfn > max_nr_vfn) {
7547 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7548 "3057 Requested vfs (%d) greater than "
7549 "supported vfs (%d)", nr_vfn, max_nr_vfn);
7553 rc = pci_enable_sriov(pdev, nr_vfn);
7555 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7556 "2806 Failed to enable sriov on this device "
7557 "with vfn number nr_vf:%d, rc:%d\n",
7560 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7561 "2807 Successful enable sriov on this device "
7562 "with vfn number nr_vf:%d\n", nr_vfn);
7567 lpfc_unblock_requests_work(struct work_struct *work)
7569 struct lpfc_hba *phba = container_of(work, struct lpfc_hba,
7570 unblock_request_work);
7572 lpfc_unblock_requests(phba);
7576 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
7577 * @phba: pointer to lpfc hba data structure.
7579 * This routine is invoked to set up the driver internal resources before the
7580 * device specific resource setup to support the HBA device it attached to.
7584 * other values - error
7587 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
7589 struct lpfc_sli *psli = &phba->sli;
7592 * Driver resources common to all SLI revisions
7594 atomic_set(&phba->fast_event_count, 0);
7595 atomic_set(&phba->dbg_log_idx, 0);
7596 atomic_set(&phba->dbg_log_cnt, 0);
7597 atomic_set(&phba->dbg_log_dmping, 0);
7598 spin_lock_init(&phba->hbalock);
7600 /* Initialize port_list spinlock */
7601 spin_lock_init(&phba->port_list_lock);
7602 INIT_LIST_HEAD(&phba->port_list);
7604 INIT_LIST_HEAD(&phba->work_list);
7605 init_waitqueue_head(&phba->wait_4_mlo_m_q);
7607 /* Initialize the wait queue head for the kernel thread */
7608 init_waitqueue_head(&phba->work_waitq);
7610 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7611 "1403 Protocols supported %s %s %s\n",
7612 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
7614 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
7616 (phba->nvmet_support ? "NVMET" : " "));
7618 /* Initialize the IO buffer list used by driver for SLI3 SCSI */
7619 spin_lock_init(&phba->scsi_buf_list_get_lock);
7620 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
7621 spin_lock_init(&phba->scsi_buf_list_put_lock);
7622 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
7624 /* Initialize the fabric iocb list */
7625 INIT_LIST_HEAD(&phba->fabric_iocb_list);
7627 /* Initialize list to save ELS buffers */
7628 INIT_LIST_HEAD(&phba->elsbuf);
7630 /* Initialize FCF connection rec list */
7631 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
7633 /* Initialize OAS configuration list */
7634 spin_lock_init(&phba->devicelock);
7635 INIT_LIST_HEAD(&phba->luns);
7637 /* MBOX heartbeat timer */
7638 timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
7639 /* Fabric block timer */
7640 timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
7641 /* EA polling mode timer */
7642 timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
7643 /* Heartbeat timer */
7644 timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
7646 INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
7648 INIT_DELAYED_WORK(&phba->idle_stat_delay_work,
7649 lpfc_idle_stat_delay_work);
7650 INIT_WORK(&phba->unblock_request_work, lpfc_unblock_requests_work);
7655 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
7656 * @phba: pointer to lpfc hba data structure.
7658 * This routine is invoked to set up the driver internal resources specific to
7659 * support the SLI-3 HBA device it attached to.
7663 * other values - error
7666 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
7671 * Initialize timers used by driver
7674 /* FCP polling mode timer */
7675 timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
7677 /* Host attention work mask setup */
7678 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
7679 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
7681 /* Get all the module params for configuring this host */
7682 lpfc_get_cfgparam(phba);
7683 /* Set up phase-1 common device driver resources */
7685 rc = lpfc_setup_driver_resource_phase1(phba);
7689 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
7690 phba->menlo_flag |= HBA_MENLO_SUPPORT;
7691 /* check for menlo minimum sg count */
7692 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
7693 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
7696 if (!phba->sli.sli3_ring)
7697 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
7698 sizeof(struct lpfc_sli_ring),
7700 if (!phba->sli.sli3_ring)
7704 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
7705 * used to create the sg_dma_buf_pool must be dynamically calculated.
7708 if (phba->sli_rev == LPFC_SLI_REV4)
7709 entry_sz = sizeof(struct sli4_sge);
7711 entry_sz = sizeof(struct ulp_bde64);
7713 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
7714 if (phba->cfg_enable_bg) {
7716 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
7717 * the FCP rsp, and a BDE for each. Sice we have no control
7718 * over how many protection data segments the SCSI Layer
7719 * will hand us (ie: there could be one for every block
7720 * in the IO), we just allocate enough BDEs to accomidate
7721 * our max amount and we need to limit lpfc_sg_seg_cnt to
7722 * minimize the risk of running out.
7724 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
7725 sizeof(struct fcp_rsp) +
7726 (LPFC_MAX_SG_SEG_CNT * entry_sz);
7728 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
7729 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
7731 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
7732 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
7735 * The scsi_buf for a regular I/O will hold the FCP cmnd,
7736 * the FCP rsp, a BDE for each, and a BDE for up to
7737 * cfg_sg_seg_cnt data segments.
7739 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
7740 sizeof(struct fcp_rsp) +
7741 ((phba->cfg_sg_seg_cnt + 2) * entry_sz);
7743 /* Total BDEs in BPL for scsi_sg_list */
7744 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
7747 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
7748 "9088 INIT sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
7749 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
7750 phba->cfg_total_seg_cnt);
7752 phba->max_vpi = LPFC_MAX_VPI;
7753 /* This will be set to correct value after config_port mbox */
7754 phba->max_vports = 0;
7757 * Initialize the SLI Layer to run with lpfc HBAs.
7759 lpfc_sli_setup(phba);
7760 lpfc_sli_queue_init(phba);
7762 /* Allocate device driver memory */
7763 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
7766 phba->lpfc_sg_dma_buf_pool =
7767 dma_pool_create("lpfc_sg_dma_buf_pool",
7768 &phba->pcidev->dev, phba->cfg_sg_dma_buf_size,
7771 if (!phba->lpfc_sg_dma_buf_pool)
7774 phba->lpfc_cmd_rsp_buf_pool =
7775 dma_pool_create("lpfc_cmd_rsp_buf_pool",
7777 sizeof(struct fcp_cmnd) +
7778 sizeof(struct fcp_rsp),
7781 if (!phba->lpfc_cmd_rsp_buf_pool)
7782 goto fail_free_dma_buf_pool;
7785 * Enable sr-iov virtual functions if supported and configured
7786 * through the module parameter.
7788 if (phba->cfg_sriov_nr_virtfn > 0) {
7789 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
7790 phba->cfg_sriov_nr_virtfn);
7792 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7793 "2808 Requested number of SR-IOV "
7794 "virtual functions (%d) is not "
7796 phba->cfg_sriov_nr_virtfn);
7797 phba->cfg_sriov_nr_virtfn = 0;
7803 fail_free_dma_buf_pool:
7804 dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
7805 phba->lpfc_sg_dma_buf_pool = NULL;
7807 lpfc_mem_free(phba);
7812 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
7813 * @phba: pointer to lpfc hba data structure.
7815 * This routine is invoked to unset the driver internal resources set up
7816 * specific for supporting the SLI-3 HBA device it attached to.
7819 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
7821 /* Free device driver memory allocated */
7822 lpfc_mem_free_all(phba);
7828 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
7829 * @phba: pointer to lpfc hba data structure.
7831 * This routine is invoked to set up the driver internal resources specific to
7832 * support the SLI-4 HBA device it attached to.
7836 * other values - error
7839 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
7841 LPFC_MBOXQ_t *mboxq;
7843 int rc, i, max_buf_size;
7850 phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7851 phba->sli4_hba.num_possible_cpu = cpumask_last(cpu_possible_mask) + 1;
7852 phba->sli4_hba.curr_disp_cpu = 0;
7854 /* Get all the module params for configuring this host */
7855 lpfc_get_cfgparam(phba);
7857 /* Set up phase-1 common device driver resources */
7858 rc = lpfc_setup_driver_resource_phase1(phba);
7862 /* Before proceed, wait for POST done and device ready */
7863 rc = lpfc_sli4_post_status_check(phba);
7867 /* Allocate all driver workqueues here */
7869 /* The lpfc_wq workqueue for deferred irq use */
7870 phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
7873 * Initialize timers used by driver
7876 timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
7878 /* FCF rediscover timer */
7879 timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
7881 /* CMF congestion timer */
7882 hrtimer_init(&phba->cmf_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
7883 phba->cmf_timer.function = lpfc_cmf_timer;
7886 * Control structure for handling external multi-buffer mailbox
7887 * command pass-through.
7889 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
7890 sizeof(struct lpfc_mbox_ext_buf_ctx));
7891 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
7893 phba->max_vpi = LPFC_MAX_VPI;
7895 /* This will be set to correct value after the read_config mbox */
7896 phba->max_vports = 0;
7898 /* Program the default value of vlan_id and fc_map */
7899 phba->valid_vlan = 0;
7900 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
7901 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
7902 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
7905 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
7906 * we will associate a new ring, for each EQ/CQ/WQ tuple.
7907 * The WQ create will allocate the ring.
7910 /* Initialize buffer queue management fields */
7911 INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
7912 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
7913 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
7915 /* for VMID idle timeout if VMID is enabled */
7916 if (lpfc_is_vmid_enabled(phba))
7917 timer_setup(&phba->inactive_vmid_poll, lpfc_vmid_poll, 0);
7920 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
7922 /* Initialize the Abort buffer list used by driver */
7923 spin_lock_init(&phba->sli4_hba.abts_io_buf_list_lock);
7924 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_io_buf_list);
7926 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
7927 /* Initialize the Abort nvme buffer list used by driver */
7928 spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
7929 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
7930 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
7931 spin_lock_init(&phba->sli4_hba.t_active_list_lock);
7932 INIT_LIST_HEAD(&phba->sli4_hba.t_active_ctx_list);
7935 /* This abort list used by worker thread */
7936 spin_lock_init(&phba->sli4_hba.sgl_list_lock);
7937 spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
7938 spin_lock_init(&phba->sli4_hba.asynce_list_lock);
7939 spin_lock_init(&phba->sli4_hba.els_xri_abrt_list_lock);
7942 * Initialize driver internal slow-path work queues
7945 /* Driver internel slow-path CQ Event pool */
7946 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
7947 /* Response IOCB work queue list */
7948 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
7949 /* Asynchronous event CQ Event work queue list */
7950 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
7951 /* Slow-path XRI aborted CQ Event work queue list */
7952 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
7953 /* Receive queue CQ Event work queue list */
7954 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
7956 /* Initialize extent block lists. */
7957 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
7958 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
7959 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
7960 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
7962 /* Initialize mboxq lists. If the early init routines fail
7963 * these lists need to be correctly initialized.
7965 INIT_LIST_HEAD(&phba->sli.mboxq);
7966 INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
7968 /* initialize optic_state to 0xFF */
7969 phba->sli4_hba.lnk_info.optic_state = 0xff;
7971 /* Allocate device driver memory */
7972 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
7976 /* IF Type 2 ports get initialized now. */
7977 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
7978 LPFC_SLI_INTF_IF_TYPE_2) {
7979 rc = lpfc_pci_function_reset(phba);
7984 phba->temp_sensor_support = 1;
7987 /* Create the bootstrap mailbox command */
7988 rc = lpfc_create_bootstrap_mbox(phba);
7992 /* Set up the host's endian order with the device. */
7993 rc = lpfc_setup_endian_order(phba);
7995 goto out_free_bsmbx;
7997 /* Set up the hba's configuration parameters. */
7998 rc = lpfc_sli4_read_config(phba);
8000 goto out_free_bsmbx;
8001 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
8003 goto out_free_bsmbx;
8005 /* IF Type 0 ports get initialized now. */
8006 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
8007 LPFC_SLI_INTF_IF_TYPE_0) {
8008 rc = lpfc_pci_function_reset(phba);
8010 goto out_free_bsmbx;
8013 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8017 goto out_free_bsmbx;
8020 /* Check for NVMET being configured */
8021 phba->nvmet_support = 0;
8022 if (lpfc_enable_nvmet_cnt) {
8024 /* First get WWN of HBA instance */
8025 lpfc_read_nv(phba, mboxq);
8026 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8027 if (rc != MBX_SUCCESS) {
8028 lpfc_printf_log(phba, KERN_ERR,
8030 "6016 Mailbox failed , mbxCmd x%x "
8031 "READ_NV, mbxStatus x%x\n",
8032 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
8033 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
8034 mempool_free(mboxq, phba->mbox_mem_pool);
8036 goto out_free_bsmbx;
8039 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
8041 wwn = cpu_to_be64(wwn);
8042 phba->sli4_hba.wwnn.u.name = wwn;
8043 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
8045 /* wwn is WWPN of HBA instance */
8046 wwn = cpu_to_be64(wwn);
8047 phba->sli4_hba.wwpn.u.name = wwn;
8049 /* Check to see if it matches any module parameter */
8050 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
8051 if (wwn == lpfc_enable_nvmet[i]) {
8052 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
8053 if (lpfc_nvmet_mem_alloc(phba))
8056 phba->nvmet_support = 1; /* a match */
8058 lpfc_printf_log(phba, KERN_ERR,
8060 "6017 NVME Target %016llx\n",
8063 lpfc_printf_log(phba, KERN_ERR,
8065 "6021 Can't enable NVME Target."
8066 " NVME_TARGET_FC infrastructure"
8067 " is not in kernel\n");
8069 /* Not supported for NVMET */
8070 phba->cfg_xri_rebalancing = 0;
8071 if (phba->irq_chann_mode == NHT_MODE) {
8072 phba->cfg_irq_chann =
8073 phba->sli4_hba.num_present_cpu;
8074 phba->cfg_hdw_queue =
8075 phba->sli4_hba.num_present_cpu;
8076 phba->irq_chann_mode = NORMAL_MODE;
8083 lpfc_nvme_mod_param_dep(phba);
8086 * Get sli4 parameters that override parameters from Port capabilities.
8087 * If this call fails, it isn't critical unless the SLI4 parameters come
8090 rc = lpfc_get_sli4_parameters(phba, mboxq);
8092 if_type = bf_get(lpfc_sli_intf_if_type,
8093 &phba->sli4_hba.sli_intf);
8094 if_fam = bf_get(lpfc_sli_intf_sli_family,
8095 &phba->sli4_hba.sli_intf);
8096 if (phba->sli4_hba.extents_in_use &&
8097 phba->sli4_hba.rpi_hdrs_in_use) {
8098 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8099 "2999 Unsupported SLI4 Parameters "
8100 "Extents and RPI headers enabled.\n");
8101 if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
8102 if_fam == LPFC_SLI_INTF_FAMILY_BE2) {
8103 mempool_free(mboxq, phba->mbox_mem_pool);
8105 goto out_free_bsmbx;
8108 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
8109 if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
8110 mempool_free(mboxq, phba->mbox_mem_pool);
8112 goto out_free_bsmbx;
8117 * 1 for cmd, 1 for rsp, NVME adds an extra one
8118 * for boundary conditions in its max_sgl_segment template.
8121 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
8125 * It doesn't matter what family our adapter is in, we are
8126 * limited to 2 Pages, 512 SGEs, for our SGL.
8127 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
8129 max_buf_size = (2 * SLI4_PAGE_SIZE);
8132 * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
8133 * used to create the sg_dma_buf_pool must be calculated.
8135 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
8136 /* Both cfg_enable_bg and cfg_external_dif code paths */
8139 * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
8140 * the FCP rsp, and a SGE. Sice we have no control
8141 * over how many protection segments the SCSI Layer
8142 * will hand us (ie: there could be one for every block
8143 * in the IO), just allocate enough SGEs to accomidate
8144 * our max amount and we need to limit lpfc_sg_seg_cnt
8145 * to minimize the risk of running out.
8147 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
8148 sizeof(struct fcp_rsp) + max_buf_size;
8150 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
8151 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
8154 * If supporting DIF, reduce the seg count for scsi to
8155 * allow room for the DIF sges.
8157 if (phba->cfg_enable_bg &&
8158 phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
8159 phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
8161 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
8165 * The scsi_buf for a regular I/O holds the FCP cmnd,
8166 * the FCP rsp, a SGE for each, and a SGE for up to
8167 * cfg_sg_seg_cnt data segments.
8169 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
8170 sizeof(struct fcp_rsp) +
8171 ((phba->cfg_sg_seg_cnt + extra) *
8172 sizeof(struct sli4_sge));
8174 /* Total SGEs for scsi_sg_list */
8175 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
8176 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
8179 * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
8180 * need to post 1 page for the SGL.
8184 if (phba->cfg_xpsgl && !phba->nvmet_support)
8185 phba->cfg_sg_dma_buf_size = LPFC_DEFAULT_XPSGL_SIZE;
8186 else if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ)
8187 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
8189 phba->cfg_sg_dma_buf_size =
8190 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
8192 phba->border_sge_num = phba->cfg_sg_dma_buf_size /
8193 sizeof(struct sli4_sge);
8195 /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
8196 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8197 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
8198 lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
8199 "6300 Reducing NVME sg segment "
8201 LPFC_MAX_NVME_SEG_CNT);
8202 phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
8204 phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
8207 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
8208 "9087 sg_seg_cnt:%d dmabuf_size:%d "
8209 "total:%d scsi:%d nvme:%d\n",
8210 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
8211 phba->cfg_total_seg_cnt, phba->cfg_scsi_seg_cnt,
8212 phba->cfg_nvme_seg_cnt);
8214 if (phba->cfg_sg_dma_buf_size < SLI4_PAGE_SIZE)
8215 i = phba->cfg_sg_dma_buf_size;
8219 phba->lpfc_sg_dma_buf_pool =
8220 dma_pool_create("lpfc_sg_dma_buf_pool",
8222 phba->cfg_sg_dma_buf_size,
8224 if (!phba->lpfc_sg_dma_buf_pool)
8225 goto out_free_bsmbx;
8227 phba->lpfc_cmd_rsp_buf_pool =
8228 dma_pool_create("lpfc_cmd_rsp_buf_pool",
8230 sizeof(struct fcp_cmnd) +
8231 sizeof(struct fcp_rsp),
8233 if (!phba->lpfc_cmd_rsp_buf_pool)
8234 goto out_free_sg_dma_buf;
8236 mempool_free(mboxq, phba->mbox_mem_pool);
8238 /* Verify OAS is supported */
8239 lpfc_sli4_oas_verify(phba);
8241 /* Verify RAS support on adapter */
8242 lpfc_sli4_ras_init(phba);
8244 /* Verify all the SLI4 queues */
8245 rc = lpfc_sli4_queue_verify(phba);
8247 goto out_free_cmd_rsp_buf;
8249 /* Create driver internal CQE event pool */
8250 rc = lpfc_sli4_cq_event_pool_create(phba);
8252 goto out_free_cmd_rsp_buf;
8254 /* Initialize sgl lists per host */
8255 lpfc_init_sgl_list(phba);
8257 /* Allocate and initialize active sgl array */
8258 rc = lpfc_init_active_sgl_array(phba);
8260 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8261 "1430 Failed to initialize sgl list.\n");
8262 goto out_destroy_cq_event_pool;
8264 rc = lpfc_sli4_init_rpi_hdrs(phba);
8266 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8267 "1432 Failed to initialize rpi headers.\n");
8268 goto out_free_active_sgl;
8271 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
8272 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
8273 phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
8275 if (!phba->fcf.fcf_rr_bmask) {
8276 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8277 "2759 Failed allocate memory for FCF round "
8278 "robin failover bmask\n");
8280 goto out_remove_rpi_hdrs;
8283 phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann,
8284 sizeof(struct lpfc_hba_eq_hdl),
8286 if (!phba->sli4_hba.hba_eq_hdl) {
8287 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8288 "2572 Failed allocate memory for "
8289 "fast-path per-EQ handle array\n");
8291 goto out_free_fcf_rr_bmask;
8294 phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu,
8295 sizeof(struct lpfc_vector_map_info),
8297 if (!phba->sli4_hba.cpu_map) {
8298 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8299 "3327 Failed allocate memory for msi-x "
8300 "interrupt vector mapping\n");
8302 goto out_free_hba_eq_hdl;
8305 phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
8306 if (!phba->sli4_hba.eq_info) {
8307 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8308 "3321 Failed allocation for per_cpu stats\n");
8310 goto out_free_hba_cpu_map;
8313 phba->sli4_hba.idle_stat = kcalloc(phba->sli4_hba.num_possible_cpu,
8314 sizeof(*phba->sli4_hba.idle_stat),
8316 if (!phba->sli4_hba.idle_stat) {
8317 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8318 "3390 Failed allocation for idle_stat\n");
8320 goto out_free_hba_eq_info;
8323 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8324 phba->sli4_hba.c_stat = alloc_percpu(struct lpfc_hdwq_stat);
8325 if (!phba->sli4_hba.c_stat) {
8326 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8327 "3332 Failed allocating per cpu hdwq stats\n");
8329 goto out_free_hba_idle_stat;
8333 phba->cmf_stat = alloc_percpu(struct lpfc_cgn_stat);
8334 if (!phba->cmf_stat) {
8335 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8336 "3331 Failed allocating per cpu cgn stats\n");
8338 goto out_free_hba_hdwq_info;
8342 * Enable sr-iov virtual functions if supported and configured
8343 * through the module parameter.
8345 if (phba->cfg_sriov_nr_virtfn > 0) {
8346 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
8347 phba->cfg_sriov_nr_virtfn);
8349 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8350 "3020 Requested number of SR-IOV "
8351 "virtual functions (%d) is not "
8353 phba->cfg_sriov_nr_virtfn);
8354 phba->cfg_sriov_nr_virtfn = 0;
8360 out_free_hba_hdwq_info:
8361 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8362 free_percpu(phba->sli4_hba.c_stat);
8363 out_free_hba_idle_stat:
8365 kfree(phba->sli4_hba.idle_stat);
8366 out_free_hba_eq_info:
8367 free_percpu(phba->sli4_hba.eq_info);
8368 out_free_hba_cpu_map:
8369 kfree(phba->sli4_hba.cpu_map);
8370 out_free_hba_eq_hdl:
8371 kfree(phba->sli4_hba.hba_eq_hdl);
8372 out_free_fcf_rr_bmask:
8373 kfree(phba->fcf.fcf_rr_bmask);
8374 out_remove_rpi_hdrs:
8375 lpfc_sli4_remove_rpi_hdrs(phba);
8376 out_free_active_sgl:
8377 lpfc_free_active_sgl(phba);
8378 out_destroy_cq_event_pool:
8379 lpfc_sli4_cq_event_pool_destroy(phba);
8380 out_free_cmd_rsp_buf:
8381 dma_pool_destroy(phba->lpfc_cmd_rsp_buf_pool);
8382 phba->lpfc_cmd_rsp_buf_pool = NULL;
8383 out_free_sg_dma_buf:
8384 dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
8385 phba->lpfc_sg_dma_buf_pool = NULL;
8387 lpfc_destroy_bootstrap_mbox(phba);
8389 lpfc_mem_free(phba);
8394 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
8395 * @phba: pointer to lpfc hba data structure.
8397 * This routine is invoked to unset the driver internal resources set up
8398 * specific for supporting the SLI-4 HBA device it attached to.
8401 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
8403 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
8405 free_percpu(phba->sli4_hba.eq_info);
8406 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8407 free_percpu(phba->sli4_hba.c_stat);
8409 free_percpu(phba->cmf_stat);
8410 kfree(phba->sli4_hba.idle_stat);
8412 /* Free memory allocated for msi-x interrupt vector to CPU mapping */
8413 kfree(phba->sli4_hba.cpu_map);
8414 phba->sli4_hba.num_possible_cpu = 0;
8415 phba->sli4_hba.num_present_cpu = 0;
8416 phba->sli4_hba.curr_disp_cpu = 0;
8417 cpumask_clear(&phba->sli4_hba.irq_aff_mask);
8419 /* Free memory allocated for fast-path work queue handles */
8420 kfree(phba->sli4_hba.hba_eq_hdl);
8422 /* Free the allocated rpi headers. */
8423 lpfc_sli4_remove_rpi_hdrs(phba);
8424 lpfc_sli4_remove_rpis(phba);
8426 /* Free eligible FCF index bmask */
8427 kfree(phba->fcf.fcf_rr_bmask);
8429 /* Free the ELS sgl list */
8430 lpfc_free_active_sgl(phba);
8431 lpfc_free_els_sgl_list(phba);
8432 lpfc_free_nvmet_sgl_list(phba);
8434 /* Free the completion queue EQ event pool */
8435 lpfc_sli4_cq_event_release_all(phba);
8436 lpfc_sli4_cq_event_pool_destroy(phba);
8438 /* Release resource identifiers. */
8439 lpfc_sli4_dealloc_resource_identifiers(phba);
8441 /* Free the bsmbx region. */
8442 lpfc_destroy_bootstrap_mbox(phba);
8444 /* Free the SLI Layer memory with SLI4 HBAs */
8445 lpfc_mem_free_all(phba);
8447 /* Free the current connect table */
8448 list_for_each_entry_safe(conn_entry, next_conn_entry,
8449 &phba->fcf_conn_rec_list, list) {
8450 list_del_init(&conn_entry->list);
8458 * lpfc_init_api_table_setup - Set up init api function jump table
8459 * @phba: The hba struct for which this call is being executed.
8460 * @dev_grp: The HBA PCI-Device group number.
8462 * This routine sets up the device INIT interface API function jump table
8465 * Returns: 0 - success, -ENODEV - failure.
8468 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8470 phba->lpfc_hba_init_link = lpfc_hba_init_link;
8471 phba->lpfc_hba_down_link = lpfc_hba_down_link;
8472 phba->lpfc_selective_reset = lpfc_selective_reset;
8474 case LPFC_PCI_DEV_LP:
8475 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
8476 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
8477 phba->lpfc_stop_port = lpfc_stop_port_s3;
8479 case LPFC_PCI_DEV_OC:
8480 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
8481 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
8482 phba->lpfc_stop_port = lpfc_stop_port_s4;
8485 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8486 "1431 Invalid HBA PCI-device group: 0x%x\n",
8494 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
8495 * @phba: pointer to lpfc hba data structure.
8497 * This routine is invoked to set up the driver internal resources after the
8498 * device specific resource setup to support the HBA device it attached to.
8502 * other values - error
8505 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
8509 /* Startup the kernel thread for this host adapter. */
8510 phba->worker_thread = kthread_run(lpfc_do_work, phba,
8511 "lpfc_worker_%d", phba->brd_no);
8512 if (IS_ERR(phba->worker_thread)) {
8513 error = PTR_ERR(phba->worker_thread);
8521 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
8522 * @phba: pointer to lpfc hba data structure.
8524 * This routine is invoked to unset the driver internal resources set up after
8525 * the device specific resource setup for supporting the HBA device it
8529 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
8532 flush_workqueue(phba->wq);
8533 destroy_workqueue(phba->wq);
8537 /* Stop kernel worker thread */
8538 if (phba->worker_thread)
8539 kthread_stop(phba->worker_thread);
8543 * lpfc_free_iocb_list - Free iocb list.
8544 * @phba: pointer to lpfc hba data structure.
8546 * This routine is invoked to free the driver's IOCB list and memory.
8549 lpfc_free_iocb_list(struct lpfc_hba *phba)
8551 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
8553 spin_lock_irq(&phba->hbalock);
8554 list_for_each_entry_safe(iocbq_entry, iocbq_next,
8555 &phba->lpfc_iocb_list, list) {
8556 list_del(&iocbq_entry->list);
8558 phba->total_iocbq_bufs--;
8560 spin_unlock_irq(&phba->hbalock);
8566 * lpfc_init_iocb_list - Allocate and initialize iocb list.
8567 * @phba: pointer to lpfc hba data structure.
8568 * @iocb_count: number of requested iocbs
8570 * This routine is invoked to allocate and initizlize the driver's IOCB
8571 * list and set up the IOCB tag array accordingly.
8575 * other values - error
8578 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
8580 struct lpfc_iocbq *iocbq_entry = NULL;
8584 /* Initialize and populate the iocb list per host. */
8585 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
8586 for (i = 0; i < iocb_count; i++) {
8587 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
8588 if (iocbq_entry == NULL) {
8589 printk(KERN_ERR "%s: only allocated %d iocbs of "
8590 "expected %d count. Unloading driver.\n",
8591 __func__, i, iocb_count);
8592 goto out_free_iocbq;
8595 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
8598 printk(KERN_ERR "%s: failed to allocate IOTAG. "
8599 "Unloading driver.\n", __func__);
8600 goto out_free_iocbq;
8602 iocbq_entry->sli4_lxritag = NO_XRI;
8603 iocbq_entry->sli4_xritag = NO_XRI;
8605 spin_lock_irq(&phba->hbalock);
8606 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
8607 phba->total_iocbq_bufs++;
8608 spin_unlock_irq(&phba->hbalock);
8614 lpfc_free_iocb_list(phba);
8620 * lpfc_free_sgl_list - Free a given sgl list.
8621 * @phba: pointer to lpfc hba data structure.
8622 * @sglq_list: pointer to the head of sgl list.
8624 * This routine is invoked to free a give sgl list and memory.
8627 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
8629 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8631 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
8632 list_del(&sglq_entry->list);
8633 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
8639 * lpfc_free_els_sgl_list - Free els sgl list.
8640 * @phba: pointer to lpfc hba data structure.
8642 * This routine is invoked to free the driver's els sgl list and memory.
8645 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
8647 LIST_HEAD(sglq_list);
8649 /* Retrieve all els sgls from driver list */
8650 spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
8651 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
8652 spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
8654 /* Now free the sgl list */
8655 lpfc_free_sgl_list(phba, &sglq_list);
8659 * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
8660 * @phba: pointer to lpfc hba data structure.
8662 * This routine is invoked to free the driver's nvmet sgl list and memory.
8665 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
8667 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8668 LIST_HEAD(sglq_list);
8670 /* Retrieve all nvmet sgls from driver list */
8671 spin_lock_irq(&phba->hbalock);
8672 spin_lock(&phba->sli4_hba.sgl_list_lock);
8673 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
8674 spin_unlock(&phba->sli4_hba.sgl_list_lock);
8675 spin_unlock_irq(&phba->hbalock);
8677 /* Now free the sgl list */
8678 list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
8679 list_del(&sglq_entry->list);
8680 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
8684 /* Update the nvmet_xri_cnt to reflect no current sgls.
8685 * The next initialization cycle sets the count and allocates
8686 * the sgls over again.
8688 phba->sli4_hba.nvmet_xri_cnt = 0;
8692 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
8693 * @phba: pointer to lpfc hba data structure.
8695 * This routine is invoked to allocate the driver's active sgl memory.
8696 * This array will hold the sglq_entry's for active IOs.
8699 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
8702 size = sizeof(struct lpfc_sglq *);
8703 size *= phba->sli4_hba.max_cfg_param.max_xri;
8705 phba->sli4_hba.lpfc_sglq_active_list =
8706 kzalloc(size, GFP_KERNEL);
8707 if (!phba->sli4_hba.lpfc_sglq_active_list)
8713 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
8714 * @phba: pointer to lpfc hba data structure.
8716 * This routine is invoked to walk through the array of active sglq entries
8717 * and free all of the resources.
8718 * This is just a place holder for now.
8721 lpfc_free_active_sgl(struct lpfc_hba *phba)
8723 kfree(phba->sli4_hba.lpfc_sglq_active_list);
8727 * lpfc_init_sgl_list - Allocate and initialize sgl list.
8728 * @phba: pointer to lpfc hba data structure.
8730 * This routine is invoked to allocate and initizlize the driver's sgl
8731 * list and set up the sgl xritag tag array accordingly.
8735 lpfc_init_sgl_list(struct lpfc_hba *phba)
8737 /* Initialize and populate the sglq list per host/VF. */
8738 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
8739 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8740 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
8741 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
8743 /* els xri-sgl book keeping */
8744 phba->sli4_hba.els_xri_cnt = 0;
8746 /* nvme xri-buffer book keeping */
8747 phba->sli4_hba.io_xri_cnt = 0;
8751 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
8752 * @phba: pointer to lpfc hba data structure.
8754 * This routine is invoked to post rpi header templates to the
8755 * port for those SLI4 ports that do not support extents. This routine
8756 * posts a PAGE_SIZE memory region to the port to hold up to
8757 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
8758 * and should be called only when interrupts are disabled.
8762 * -ERROR - otherwise.
8765 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
8768 struct lpfc_rpi_hdr *rpi_hdr;
8770 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
8771 if (!phba->sli4_hba.rpi_hdrs_in_use)
8773 if (phba->sli4_hba.extents_in_use)
8776 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
8778 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8779 "0391 Error during rpi post operation\n");
8780 lpfc_sli4_remove_rpis(phba);
8788 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
8789 * @phba: pointer to lpfc hba data structure.
8791 * This routine is invoked to allocate a single 4KB memory region to
8792 * support rpis and stores them in the phba. This single region
8793 * provides support for up to 64 rpis. The region is used globally
8797 * A valid rpi hdr on success.
8798 * A NULL pointer on any failure.
8800 struct lpfc_rpi_hdr *
8801 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
8803 uint16_t rpi_limit, curr_rpi_range;
8804 struct lpfc_dmabuf *dmabuf;
8805 struct lpfc_rpi_hdr *rpi_hdr;
8808 * If the SLI4 port supports extents, posting the rpi header isn't
8809 * required. Set the expected maximum count and let the actual value
8810 * get set when extents are fully allocated.
8812 if (!phba->sli4_hba.rpi_hdrs_in_use)
8814 if (phba->sli4_hba.extents_in_use)
8817 /* The limit on the logical index is just the max_rpi count. */
8818 rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
8820 spin_lock_irq(&phba->hbalock);
8822 * Establish the starting RPI in this header block. The starting
8823 * rpi is normalized to a zero base because the physical rpi is
8826 curr_rpi_range = phba->sli4_hba.next_rpi;
8827 spin_unlock_irq(&phba->hbalock);
8829 /* Reached full RPI range */
8830 if (curr_rpi_range == rpi_limit)
8834 * First allocate the protocol header region for the port. The
8835 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
8837 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
8841 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
8842 LPFC_HDR_TEMPLATE_SIZE,
8843 &dmabuf->phys, GFP_KERNEL);
8844 if (!dmabuf->virt) {
8846 goto err_free_dmabuf;
8849 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
8851 goto err_free_coherent;
8854 /* Save the rpi header data for cleanup later. */
8855 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
8857 goto err_free_coherent;
8859 rpi_hdr->dmabuf = dmabuf;
8860 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
8861 rpi_hdr->page_count = 1;
8862 spin_lock_irq(&phba->hbalock);
8864 /* The rpi_hdr stores the logical index only. */
8865 rpi_hdr->start_rpi = curr_rpi_range;
8866 rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
8867 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
8869 spin_unlock_irq(&phba->hbalock);
8873 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
8874 dmabuf->virt, dmabuf->phys);
8881 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
8882 * @phba: pointer to lpfc hba data structure.
8884 * This routine is invoked to remove all memory resources allocated
8885 * to support rpis for SLI4 ports not supporting extents. This routine
8886 * presumes the caller has released all rpis consumed by fabric or port
8887 * logins and is prepared to have the header pages removed.
8890 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
8892 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
8894 if (!phba->sli4_hba.rpi_hdrs_in_use)
8897 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
8898 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
8899 list_del(&rpi_hdr->list);
8900 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
8901 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
8902 kfree(rpi_hdr->dmabuf);
8906 /* There are no rpis available to the port now. */
8907 phba->sli4_hba.next_rpi = 0;
8911 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
8912 * @pdev: pointer to pci device data structure.
8914 * This routine is invoked to allocate the driver hba data structure for an
8915 * HBA device. If the allocation is successful, the phba reference to the
8916 * PCI device data structure is set.
8919 * pointer to @phba - successful
8922 static struct lpfc_hba *
8923 lpfc_hba_alloc(struct pci_dev *pdev)
8925 struct lpfc_hba *phba;
8927 /* Allocate memory for HBA structure */
8928 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
8930 dev_err(&pdev->dev, "failed to allocate hba struct\n");
8934 /* Set reference to PCI device in HBA structure */
8935 phba->pcidev = pdev;
8937 /* Assign an unused board number */
8938 phba->brd_no = lpfc_get_instance();
8939 if (phba->brd_no < 0) {
8943 phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
8945 spin_lock_init(&phba->ct_ev_lock);
8946 INIT_LIST_HEAD(&phba->ct_ev_waiters);
8952 * lpfc_hba_free - Free driver hba data structure with a device.
8953 * @phba: pointer to lpfc hba data structure.
8955 * This routine is invoked to free the driver hba data structure with an
8959 lpfc_hba_free(struct lpfc_hba *phba)
8961 if (phba->sli_rev == LPFC_SLI_REV4)
8962 kfree(phba->sli4_hba.hdwq);
8964 /* Release the driver assigned board number */
8965 idr_remove(&lpfc_hba_index, phba->brd_no);
8967 /* Free memory allocated with sli3 rings */
8968 kfree(phba->sli.sli3_ring);
8969 phba->sli.sli3_ring = NULL;
8976 * lpfc_create_shost - Create hba physical port with associated scsi host.
8977 * @phba: pointer to lpfc hba data structure.
8979 * This routine is invoked to create HBA physical port and associate a SCSI
8984 * other values - error
8987 lpfc_create_shost(struct lpfc_hba *phba)
8989 struct lpfc_vport *vport;
8990 struct Scsi_Host *shost;
8992 /* Initialize HBA FC structure */
8993 phba->fc_edtov = FF_DEF_EDTOV;
8994 phba->fc_ratov = FF_DEF_RATOV;
8995 phba->fc_altov = FF_DEF_ALTOV;
8996 phba->fc_arbtov = FF_DEF_ARBTOV;
8998 atomic_set(&phba->sdev_cnt, 0);
8999 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
9003 shost = lpfc_shost_from_vport(vport);
9004 phba->pport = vport;
9006 if (phba->nvmet_support) {
9007 /* Only 1 vport (pport) will support NVME target */
9008 phba->targetport = NULL;
9009 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
9010 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME_DISC,
9011 "6076 NVME Target Found\n");
9014 lpfc_debugfs_initialize(vport);
9015 /* Put reference to SCSI host to driver's device private data */
9016 pci_set_drvdata(phba->pcidev, shost);
9019 * At this point we are fully registered with PSA. In addition,
9020 * any initial discovery should be completed.
9022 vport->load_flag |= FC_ALLOW_FDMI;
9023 if (phba->cfg_enable_SmartSAN ||
9024 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
9026 /* Setup appropriate attribute masks */
9027 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
9028 if (phba->cfg_enable_SmartSAN)
9029 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
9031 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
9037 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
9038 * @phba: pointer to lpfc hba data structure.
9040 * This routine is invoked to destroy HBA physical port and the associated
9044 lpfc_destroy_shost(struct lpfc_hba *phba)
9046 struct lpfc_vport *vport = phba->pport;
9048 /* Destroy physical port that associated with the SCSI host */
9049 destroy_port(vport);
9055 * lpfc_setup_bg - Setup Block guard structures and debug areas.
9056 * @phba: pointer to lpfc hba data structure.
9057 * @shost: the shost to be used to detect Block guard settings.
9059 * This routine sets up the local Block guard protocol settings for @shost.
9060 * This routine also allocates memory for debugging bg buffers.
9063 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
9068 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
9069 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9070 "1478 Registering BlockGuard with the "
9073 old_mask = phba->cfg_prot_mask;
9074 old_guard = phba->cfg_prot_guard;
9076 /* Only allow supported values */
9077 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
9078 SHOST_DIX_TYPE0_PROTECTION |
9079 SHOST_DIX_TYPE1_PROTECTION);
9080 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
9081 SHOST_DIX_GUARD_CRC);
9083 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
9084 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
9085 phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
9087 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
9088 if ((old_mask != phba->cfg_prot_mask) ||
9089 (old_guard != phba->cfg_prot_guard))
9090 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9091 "1475 Registering BlockGuard with the "
9092 "SCSI layer: mask %d guard %d\n",
9093 phba->cfg_prot_mask,
9094 phba->cfg_prot_guard);
9096 scsi_host_set_prot(shost, phba->cfg_prot_mask);
9097 scsi_host_set_guard(shost, phba->cfg_prot_guard);
9099 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9100 "1479 Not Registering BlockGuard with the SCSI "
9101 "layer, Bad protection parameters: %d %d\n",
9102 old_mask, old_guard);
9107 * lpfc_post_init_setup - Perform necessary device post initialization setup.
9108 * @phba: pointer to lpfc hba data structure.
9110 * This routine is invoked to perform all the necessary post initialization
9111 * setup for the device.
9114 lpfc_post_init_setup(struct lpfc_hba *phba)
9116 struct Scsi_Host *shost;
9117 struct lpfc_adapter_event_header adapter_event;
9119 /* Get the default values for Model Name and Description */
9120 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9123 * hba setup may have changed the hba_queue_depth so we need to
9124 * adjust the value of can_queue.
9126 shost = pci_get_drvdata(phba->pcidev);
9127 shost->can_queue = phba->cfg_hba_queue_depth - 10;
9129 lpfc_host_attrib_init(shost);
9131 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
9132 spin_lock_irq(shost->host_lock);
9133 lpfc_poll_start_timer(phba);
9134 spin_unlock_irq(shost->host_lock);
9137 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9138 "0428 Perform SCSI scan\n");
9139 /* Send board arrival event to upper layer */
9140 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
9141 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
9142 fc_host_post_vendor_event(shost, fc_get_event_number(),
9143 sizeof(adapter_event),
9144 (char *) &adapter_event,
9150 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
9151 * @phba: pointer to lpfc hba data structure.
9153 * This routine is invoked to set up the PCI device memory space for device
9154 * with SLI-3 interface spec.
9158 * other values - error
9161 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
9163 struct pci_dev *pdev = phba->pcidev;
9164 unsigned long bar0map_len, bar2map_len;
9172 /* Set the device DMA mask size */
9173 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
9175 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
9180 /* Get the bus address of Bar0 and Bar2 and the number of bytes
9181 * required by each mapping.
9183 phba->pci_bar0_map = pci_resource_start(pdev, 0);
9184 bar0map_len = pci_resource_len(pdev, 0);
9186 phba->pci_bar2_map = pci_resource_start(pdev, 2);
9187 bar2map_len = pci_resource_len(pdev, 2);
9189 /* Map HBA SLIM to a kernel virtual address. */
9190 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
9191 if (!phba->slim_memmap_p) {
9192 dev_printk(KERN_ERR, &pdev->dev,
9193 "ioremap failed for SLIM memory.\n");
9197 /* Map HBA Control Registers to a kernel virtual address. */
9198 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
9199 if (!phba->ctrl_regs_memmap_p) {
9200 dev_printk(KERN_ERR, &pdev->dev,
9201 "ioremap failed for HBA control registers.\n");
9202 goto out_iounmap_slim;
9205 /* Allocate memory for SLI-2 structures */
9206 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9207 &phba->slim2p.phys, GFP_KERNEL);
9208 if (!phba->slim2p.virt)
9211 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
9212 phba->mbox_ext = (phba->slim2p.virt +
9213 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
9214 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
9215 phba->IOCBs = (phba->slim2p.virt +
9216 offsetof(struct lpfc_sli2_slim, IOCBs));
9218 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
9219 lpfc_sli_hbq_size(),
9220 &phba->hbqslimp.phys,
9222 if (!phba->hbqslimp.virt)
9225 hbq_count = lpfc_sli_hbq_count();
9226 ptr = phba->hbqslimp.virt;
9227 for (i = 0; i < hbq_count; ++i) {
9228 phba->hbqs[i].hbq_virt = ptr;
9229 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
9230 ptr += (lpfc_hbq_defs[i]->entry_count *
9231 sizeof(struct lpfc_hbq_entry));
9233 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
9234 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
9236 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
9238 phba->MBslimaddr = phba->slim_memmap_p;
9239 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
9240 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
9241 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
9242 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
9247 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9248 phba->slim2p.virt, phba->slim2p.phys);
9250 iounmap(phba->ctrl_regs_memmap_p);
9252 iounmap(phba->slim_memmap_p);
9258 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
9259 * @phba: pointer to lpfc hba data structure.
9261 * This routine is invoked to unset the PCI device memory space for device
9262 * with SLI-3 interface spec.
9265 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
9267 struct pci_dev *pdev;
9269 /* Obtain PCI device reference */
9273 pdev = phba->pcidev;
9275 /* Free coherent DMA memory allocated */
9276 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9277 phba->hbqslimp.virt, phba->hbqslimp.phys);
9278 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9279 phba->slim2p.virt, phba->slim2p.phys);
9281 /* I/O memory unmap */
9282 iounmap(phba->ctrl_regs_memmap_p);
9283 iounmap(phba->slim_memmap_p);
9289 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
9290 * @phba: pointer to lpfc hba data structure.
9292 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
9293 * done and check status.
9295 * Return 0 if successful, otherwise -ENODEV.
9298 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
9300 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
9301 struct lpfc_register reg_data;
9302 int i, port_error = 0;
9305 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
9306 memset(®_data, 0, sizeof(reg_data));
9307 if (!phba->sli4_hba.PSMPHRregaddr)
9310 /* Wait up to 30 seconds for the SLI Port POST done and ready */
9311 for (i = 0; i < 3000; i++) {
9312 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
9313 &portsmphr_reg.word0) ||
9314 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
9315 /* Port has a fatal POST error, break out */
9316 port_error = -ENODEV;
9319 if (LPFC_POST_STAGE_PORT_READY ==
9320 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
9326 * If there was a port error during POST, then don't proceed with
9327 * other register reads as the data may not be valid. Just exit.
9330 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9331 "1408 Port Failed POST - portsmphr=0x%x, "
9332 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
9333 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
9334 portsmphr_reg.word0,
9335 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
9336 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
9337 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
9338 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
9339 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
9340 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
9341 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
9342 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
9344 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9345 "2534 Device Info: SLIFamily=0x%x, "
9346 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
9347 "SLIHint_2=0x%x, FT=0x%x\n",
9348 bf_get(lpfc_sli_intf_sli_family,
9349 &phba->sli4_hba.sli_intf),
9350 bf_get(lpfc_sli_intf_slirev,
9351 &phba->sli4_hba.sli_intf),
9352 bf_get(lpfc_sli_intf_if_type,
9353 &phba->sli4_hba.sli_intf),
9354 bf_get(lpfc_sli_intf_sli_hint1,
9355 &phba->sli4_hba.sli_intf),
9356 bf_get(lpfc_sli_intf_sli_hint2,
9357 &phba->sli4_hba.sli_intf),
9358 bf_get(lpfc_sli_intf_func_type,
9359 &phba->sli4_hba.sli_intf));
9361 * Check for other Port errors during the initialization
9362 * process. Fail the load if the port did not come up
9365 if_type = bf_get(lpfc_sli_intf_if_type,
9366 &phba->sli4_hba.sli_intf);
9368 case LPFC_SLI_INTF_IF_TYPE_0:
9369 phba->sli4_hba.ue_mask_lo =
9370 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
9371 phba->sli4_hba.ue_mask_hi =
9372 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
9374 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
9376 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
9377 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
9378 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
9379 lpfc_printf_log(phba, KERN_ERR,
9381 "1422 Unrecoverable Error "
9382 "Detected during POST "
9383 "uerr_lo_reg=0x%x, "
9384 "uerr_hi_reg=0x%x, "
9385 "ue_mask_lo_reg=0x%x, "
9386 "ue_mask_hi_reg=0x%x\n",
9389 phba->sli4_hba.ue_mask_lo,
9390 phba->sli4_hba.ue_mask_hi);
9391 port_error = -ENODEV;
9394 case LPFC_SLI_INTF_IF_TYPE_2:
9395 case LPFC_SLI_INTF_IF_TYPE_6:
9396 /* Final checks. The port status should be clean. */
9397 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
9399 (bf_get(lpfc_sliport_status_err, ®_data) &&
9400 !bf_get(lpfc_sliport_status_rn, ®_data))) {
9401 phba->work_status[0] =
9402 readl(phba->sli4_hba.u.if_type2.
9404 phba->work_status[1] =
9405 readl(phba->sli4_hba.u.if_type2.
9407 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9408 "2888 Unrecoverable port error "
9409 "following POST: port status reg "
9410 "0x%x, port_smphr reg 0x%x, "
9411 "error 1=0x%x, error 2=0x%x\n",
9413 portsmphr_reg.word0,
9414 phba->work_status[0],
9415 phba->work_status[1]);
9416 port_error = -ENODEV;
9420 if (lpfc_pldv_detect &&
9421 bf_get(lpfc_sli_intf_sli_family,
9422 &phba->sli4_hba.sli_intf) ==
9423 LPFC_SLI_INTF_FAMILY_G6)
9424 pci_write_config_byte(phba->pcidev,
9425 LPFC_SLI_INTF, CFG_PLD);
9427 case LPFC_SLI_INTF_IF_TYPE_1:
9436 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
9437 * @phba: pointer to lpfc hba data structure.
9438 * @if_type: The SLI4 interface type getting configured.
9440 * This routine is invoked to set up SLI4 BAR0 PCI config space register
9444 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
9447 case LPFC_SLI_INTF_IF_TYPE_0:
9448 phba->sli4_hba.u.if_type0.UERRLOregaddr =
9449 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
9450 phba->sli4_hba.u.if_type0.UERRHIregaddr =
9451 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
9452 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
9453 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
9454 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
9455 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
9456 phba->sli4_hba.SLIINTFregaddr =
9457 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
9459 case LPFC_SLI_INTF_IF_TYPE_2:
9460 phba->sli4_hba.u.if_type2.EQDregaddr =
9461 phba->sli4_hba.conf_regs_memmap_p +
9462 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
9463 phba->sli4_hba.u.if_type2.ERR1regaddr =
9464 phba->sli4_hba.conf_regs_memmap_p +
9465 LPFC_CTL_PORT_ER1_OFFSET;
9466 phba->sli4_hba.u.if_type2.ERR2regaddr =
9467 phba->sli4_hba.conf_regs_memmap_p +
9468 LPFC_CTL_PORT_ER2_OFFSET;
9469 phba->sli4_hba.u.if_type2.CTRLregaddr =
9470 phba->sli4_hba.conf_regs_memmap_p +
9471 LPFC_CTL_PORT_CTL_OFFSET;
9472 phba->sli4_hba.u.if_type2.STATUSregaddr =
9473 phba->sli4_hba.conf_regs_memmap_p +
9474 LPFC_CTL_PORT_STA_OFFSET;
9475 phba->sli4_hba.SLIINTFregaddr =
9476 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
9477 phba->sli4_hba.PSMPHRregaddr =
9478 phba->sli4_hba.conf_regs_memmap_p +
9479 LPFC_CTL_PORT_SEM_OFFSET;
9480 phba->sli4_hba.RQDBregaddr =
9481 phba->sli4_hba.conf_regs_memmap_p +
9482 LPFC_ULP0_RQ_DOORBELL;
9483 phba->sli4_hba.WQDBregaddr =
9484 phba->sli4_hba.conf_regs_memmap_p +
9485 LPFC_ULP0_WQ_DOORBELL;
9486 phba->sli4_hba.CQDBregaddr =
9487 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
9488 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
9489 phba->sli4_hba.MQDBregaddr =
9490 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
9491 phba->sli4_hba.BMBXregaddr =
9492 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
9494 case LPFC_SLI_INTF_IF_TYPE_6:
9495 phba->sli4_hba.u.if_type2.EQDregaddr =
9496 phba->sli4_hba.conf_regs_memmap_p +
9497 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
9498 phba->sli4_hba.u.if_type2.ERR1regaddr =
9499 phba->sli4_hba.conf_regs_memmap_p +
9500 LPFC_CTL_PORT_ER1_OFFSET;
9501 phba->sli4_hba.u.if_type2.ERR2regaddr =
9502 phba->sli4_hba.conf_regs_memmap_p +
9503 LPFC_CTL_PORT_ER2_OFFSET;
9504 phba->sli4_hba.u.if_type2.CTRLregaddr =
9505 phba->sli4_hba.conf_regs_memmap_p +
9506 LPFC_CTL_PORT_CTL_OFFSET;
9507 phba->sli4_hba.u.if_type2.STATUSregaddr =
9508 phba->sli4_hba.conf_regs_memmap_p +
9509 LPFC_CTL_PORT_STA_OFFSET;
9510 phba->sli4_hba.PSMPHRregaddr =
9511 phba->sli4_hba.conf_regs_memmap_p +
9512 LPFC_CTL_PORT_SEM_OFFSET;
9513 phba->sli4_hba.BMBXregaddr =
9514 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
9516 case LPFC_SLI_INTF_IF_TYPE_1:
9518 dev_printk(KERN_ERR, &phba->pcidev->dev,
9519 "FATAL - unsupported SLI4 interface type - %d\n",
9526 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
9527 * @phba: pointer to lpfc hba data structure.
9528 * @if_type: sli if type to operate on.
9530 * This routine is invoked to set up SLI4 BAR1 register memory map.
9533 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
9536 case LPFC_SLI_INTF_IF_TYPE_0:
9537 phba->sli4_hba.PSMPHRregaddr =
9538 phba->sli4_hba.ctrl_regs_memmap_p +
9539 LPFC_SLIPORT_IF0_SMPHR;
9540 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9542 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9544 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9547 case LPFC_SLI_INTF_IF_TYPE_6:
9548 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9549 LPFC_IF6_RQ_DOORBELL;
9550 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9551 LPFC_IF6_WQ_DOORBELL;
9552 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9553 LPFC_IF6_CQ_DOORBELL;
9554 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9555 LPFC_IF6_EQ_DOORBELL;
9556 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9557 LPFC_IF6_MQ_DOORBELL;
9559 case LPFC_SLI_INTF_IF_TYPE_2:
9560 case LPFC_SLI_INTF_IF_TYPE_1:
9562 dev_err(&phba->pcidev->dev,
9563 "FATAL - unsupported SLI4 interface type - %d\n",
9570 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
9571 * @phba: pointer to lpfc hba data structure.
9572 * @vf: virtual function number
9574 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
9575 * based on the given viftual function number, @vf.
9577 * Return 0 if successful, otherwise -ENODEV.
9580 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
9582 if (vf > LPFC_VIR_FUNC_MAX)
9585 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9586 vf * LPFC_VFR_PAGE_SIZE +
9587 LPFC_ULP0_RQ_DOORBELL);
9588 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9589 vf * LPFC_VFR_PAGE_SIZE +
9590 LPFC_ULP0_WQ_DOORBELL);
9591 phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9592 vf * LPFC_VFR_PAGE_SIZE +
9593 LPFC_EQCQ_DOORBELL);
9594 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
9595 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9596 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
9597 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9598 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
9603 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
9604 * @phba: pointer to lpfc hba data structure.
9606 * This routine is invoked to create the bootstrap mailbox
9607 * region consistent with the SLI-4 interface spec. This
9608 * routine allocates all memory necessary to communicate
9609 * mailbox commands to the port and sets up all alignment
9610 * needs. No locks are expected to be held when calling
9615 * -ENOMEM - could not allocated memory.
9618 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
9621 struct lpfc_dmabuf *dmabuf;
9622 struct dma_address *dma_address;
9626 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
9631 * The bootstrap mailbox region is comprised of 2 parts
9632 * plus an alignment restriction of 16 bytes.
9634 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
9635 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size,
9636 &dmabuf->phys, GFP_KERNEL);
9637 if (!dmabuf->virt) {
9643 * Initialize the bootstrap mailbox pointers now so that the register
9644 * operations are simple later. The mailbox dma address is required
9645 * to be 16-byte aligned. Also align the virtual memory as each
9646 * maibox is copied into the bmbx mailbox region before issuing the
9647 * command to the port.
9649 phba->sli4_hba.bmbx.dmabuf = dmabuf;
9650 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
9652 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
9653 LPFC_ALIGN_16_BYTE);
9654 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
9655 LPFC_ALIGN_16_BYTE);
9658 * Set the high and low physical addresses now. The SLI4 alignment
9659 * requirement is 16 bytes and the mailbox is posted to the port
9660 * as two 30-bit addresses. The other data is a bit marking whether
9661 * the 30-bit address is the high or low address.
9662 * Upcast bmbx aphys to 64bits so shift instruction compiles
9663 * clean on 32 bit machines.
9665 dma_address = &phba->sli4_hba.bmbx.dma_address;
9666 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
9667 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
9668 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
9669 LPFC_BMBX_BIT1_ADDR_HI);
9671 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
9672 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
9673 LPFC_BMBX_BIT1_ADDR_LO);
9678 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
9679 * @phba: pointer to lpfc hba data structure.
9681 * This routine is invoked to teardown the bootstrap mailbox
9682 * region and release all host resources. This routine requires
9683 * the caller to ensure all mailbox commands recovered, no
9684 * additional mailbox comands are sent, and interrupts are disabled
9685 * before calling this routine.
9689 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
9691 dma_free_coherent(&phba->pcidev->dev,
9692 phba->sli4_hba.bmbx.bmbx_size,
9693 phba->sli4_hba.bmbx.dmabuf->virt,
9694 phba->sli4_hba.bmbx.dmabuf->phys);
9696 kfree(phba->sli4_hba.bmbx.dmabuf);
9697 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
9700 static const char * const lpfc_topo_to_str[] = {
9710 #define LINK_FLAGS_DEF 0x0
9711 #define LINK_FLAGS_P2P 0x1
9712 #define LINK_FLAGS_LOOP 0x2
9714 * lpfc_map_topology - Map the topology read from READ_CONFIG
9715 * @phba: pointer to lpfc hba data structure.
9716 * @rd_config: pointer to read config data
9718 * This routine is invoked to map the topology values as read
9719 * from the read config mailbox command. If the persistent
9720 * topology feature is supported, the firmware will provide the
9721 * saved topology information to be used in INIT_LINK
9724 lpfc_map_topology(struct lpfc_hba *phba, struct lpfc_mbx_read_config *rd_config)
9728 ptv = bf_get(lpfc_mbx_rd_conf_ptv, rd_config);
9729 tf = bf_get(lpfc_mbx_rd_conf_tf, rd_config);
9730 pt = bf_get(lpfc_mbx_rd_conf_pt, rd_config);
9732 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9733 "2027 Read Config Data : ptv:0x%x, tf:0x%x pt:0x%x",
9736 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9737 "2019 FW does not support persistent topology "
9738 "Using driver parameter defined value [%s]",
9739 lpfc_topo_to_str[phba->cfg_topology]);
9742 /* FW supports persistent topology - override module parameter value */
9743 phba->hba_flag |= HBA_PERSISTENT_TOPO;
9745 /* if ASIC_GEN_NUM >= 0xC) */
9746 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
9747 LPFC_SLI_INTF_IF_TYPE_6) ||
9748 (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
9749 LPFC_SLI_INTF_FAMILY_G6)) {
9751 phba->cfg_topology = ((pt == LINK_FLAGS_LOOP)
9752 ? FLAGS_TOPOLOGY_MODE_LOOP
9753 : FLAGS_TOPOLOGY_MODE_PT_PT);
9755 phba->hba_flag &= ~HBA_PERSISTENT_TOPO;
9759 /* If topology failover set - pt is '0' or '1' */
9760 phba->cfg_topology = (pt ? FLAGS_TOPOLOGY_MODE_PT_LOOP :
9761 FLAGS_TOPOLOGY_MODE_LOOP_PT);
9763 phba->cfg_topology = ((pt == LINK_FLAGS_P2P)
9764 ? FLAGS_TOPOLOGY_MODE_PT_PT
9765 : FLAGS_TOPOLOGY_MODE_LOOP);
9768 if (phba->hba_flag & HBA_PERSISTENT_TOPO) {
9769 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9770 "2020 Using persistent topology value [%s]",
9771 lpfc_topo_to_str[phba->cfg_topology]);
9773 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9774 "2021 Invalid topology values from FW "
9775 "Using driver parameter defined value [%s]",
9776 lpfc_topo_to_str[phba->cfg_topology]);
9781 * lpfc_sli4_read_config - Get the config parameters.
9782 * @phba: pointer to lpfc hba data structure.
9784 * This routine is invoked to read the configuration parameters from the HBA.
9785 * The configuration parameters are used to set the base and maximum values
9786 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
9787 * allocation for the port.
9791 * -ENOMEM - No available memory
9792 * -EIO - The mailbox failed to complete successfully.
9795 lpfc_sli4_read_config(struct lpfc_hba *phba)
9798 struct lpfc_mbx_read_config *rd_config;
9799 union lpfc_sli4_cfg_shdr *shdr;
9800 uint32_t shdr_status, shdr_add_status;
9801 struct lpfc_mbx_get_func_cfg *get_func_cfg;
9802 struct lpfc_rsrc_desc_fcfcoe *desc;
9804 uint16_t forced_link_speed;
9805 uint32_t if_type, qmin;
9806 int length, i, rc = 0, rc2;
9808 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9810 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9811 "2011 Unable to allocate memory for issuing "
9812 "SLI_CONFIG_SPECIAL mailbox command\n");
9816 lpfc_read_config(phba, pmb);
9818 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9819 if (rc != MBX_SUCCESS) {
9820 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9821 "2012 Mailbox failed , mbxCmd x%x "
9822 "READ_CONFIG, mbxStatus x%x\n",
9823 bf_get(lpfc_mqe_command, &pmb->u.mqe),
9824 bf_get(lpfc_mqe_status, &pmb->u.mqe));
9827 rd_config = &pmb->u.mqe.un.rd_config;
9828 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
9829 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
9830 phba->sli4_hba.lnk_info.lnk_tp =
9831 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
9832 phba->sli4_hba.lnk_info.lnk_no =
9833 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
9834 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9835 "3081 lnk_type:%d, lnk_numb:%d\n",
9836 phba->sli4_hba.lnk_info.lnk_tp,
9837 phba->sli4_hba.lnk_info.lnk_no);
9839 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9840 "3082 Mailbox (x%x) returned ldv:x0\n",
9841 bf_get(lpfc_mqe_command, &pmb->u.mqe));
9842 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
9843 phba->bbcredit_support = 1;
9844 phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
9847 phba->sli4_hba.conf_trunk =
9848 bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
9849 phba->sli4_hba.extents_in_use =
9850 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
9851 phba->sli4_hba.max_cfg_param.max_xri =
9852 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
9853 /* Reduce resource usage in kdump environment */
9854 if (is_kdump_kernel() &&
9855 phba->sli4_hba.max_cfg_param.max_xri > 512)
9856 phba->sli4_hba.max_cfg_param.max_xri = 512;
9857 phba->sli4_hba.max_cfg_param.xri_base =
9858 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
9859 phba->sli4_hba.max_cfg_param.max_vpi =
9860 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
9861 /* Limit the max we support */
9862 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
9863 phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
9864 phba->sli4_hba.max_cfg_param.vpi_base =
9865 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
9866 phba->sli4_hba.max_cfg_param.max_rpi =
9867 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
9868 phba->sli4_hba.max_cfg_param.rpi_base =
9869 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
9870 phba->sli4_hba.max_cfg_param.max_vfi =
9871 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
9872 phba->sli4_hba.max_cfg_param.vfi_base =
9873 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
9874 phba->sli4_hba.max_cfg_param.max_fcfi =
9875 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
9876 phba->sli4_hba.max_cfg_param.max_eq =
9877 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
9878 phba->sli4_hba.max_cfg_param.max_rq =
9879 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
9880 phba->sli4_hba.max_cfg_param.max_wq =
9881 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
9882 phba->sli4_hba.max_cfg_param.max_cq =
9883 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
9884 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
9885 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
9886 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
9887 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
9888 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
9889 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
9890 phba->max_vports = phba->max_vpi;
9892 /* Next decide on FPIN or Signal E2E CGN support
9893 * For congestion alarms and warnings valid combination are:
9894 * 1. FPIN alarms / FPIN warnings
9895 * 2. Signal alarms / Signal warnings
9896 * 3. FPIN alarms / Signal warnings
9897 * 4. Signal alarms / FPIN warnings
9899 * Initialize the adapter frequency to 100 mSecs
9901 phba->cgn_reg_fpin = LPFC_CGN_FPIN_BOTH;
9902 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
9903 phba->cgn_sig_freq = lpfc_fabric_cgn_frequency;
9905 if (lpfc_use_cgn_signal) {
9906 if (bf_get(lpfc_mbx_rd_conf_wcs, rd_config)) {
9907 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY;
9908 phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN;
9910 if (bf_get(lpfc_mbx_rd_conf_acs, rd_config)) {
9911 /* MUST support both alarm and warning
9912 * because EDC does not support alarm alone.
9914 if (phba->cgn_reg_signal !=
9915 EDC_CG_SIG_WARN_ONLY) {
9916 /* Must support both or none */
9917 phba->cgn_reg_fpin = LPFC_CGN_FPIN_BOTH;
9918 phba->cgn_reg_signal =
9919 EDC_CG_SIG_NOTSUPPORTED;
9921 phba->cgn_reg_signal =
9922 EDC_CG_SIG_WARN_ALARM;
9923 phba->cgn_reg_fpin =
9929 /* Set the congestion initial signal and fpin values. */
9930 phba->cgn_init_reg_fpin = phba->cgn_reg_fpin;
9931 phba->cgn_init_reg_signal = phba->cgn_reg_signal;
9933 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
9934 "6446 READ_CONFIG reg_sig x%x reg_fpin:x%x\n",
9935 phba->cgn_reg_signal, phba->cgn_reg_fpin);
9937 lpfc_map_topology(phba, rd_config);
9938 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9939 "2003 cfg params Extents? %d "
9944 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d lmt:x%x\n",
9945 phba->sli4_hba.extents_in_use,
9946 phba->sli4_hba.max_cfg_param.xri_base,
9947 phba->sli4_hba.max_cfg_param.max_xri,
9948 phba->sli4_hba.max_cfg_param.vpi_base,
9949 phba->sli4_hba.max_cfg_param.max_vpi,
9950 phba->sli4_hba.max_cfg_param.vfi_base,
9951 phba->sli4_hba.max_cfg_param.max_vfi,
9952 phba->sli4_hba.max_cfg_param.rpi_base,
9953 phba->sli4_hba.max_cfg_param.max_rpi,
9954 phba->sli4_hba.max_cfg_param.max_fcfi,
9955 phba->sli4_hba.max_cfg_param.max_eq,
9956 phba->sli4_hba.max_cfg_param.max_cq,
9957 phba->sli4_hba.max_cfg_param.max_wq,
9958 phba->sli4_hba.max_cfg_param.max_rq,
9962 * Calculate queue resources based on how
9963 * many WQ/CQ/EQs are available.
9965 qmin = phba->sli4_hba.max_cfg_param.max_wq;
9966 if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
9967 qmin = phba->sli4_hba.max_cfg_param.max_cq;
9968 if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
9969 qmin = phba->sli4_hba.max_cfg_param.max_eq;
9971 * Whats left after this can go toward NVME / FCP.
9972 * The minus 4 accounts for ELS, NVME LS, MBOX
9973 * plus one extra. When configured for
9974 * NVMET, FCP io channel WQs are not created.
9978 /* Check to see if there is enough for NVME */
9979 if ((phba->cfg_irq_chann > qmin) ||
9980 (phba->cfg_hdw_queue > qmin)) {
9981 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9982 "2005 Reducing Queues - "
9983 "FW resource limitation: "
9984 "WQ %d CQ %d EQ %d: min %d: "
9986 phba->sli4_hba.max_cfg_param.max_wq,
9987 phba->sli4_hba.max_cfg_param.max_cq,
9988 phba->sli4_hba.max_cfg_param.max_eq,
9989 qmin, phba->cfg_irq_chann,
9990 phba->cfg_hdw_queue);
9992 if (phba->cfg_irq_chann > qmin)
9993 phba->cfg_irq_chann = qmin;
9994 if (phba->cfg_hdw_queue > qmin)
9995 phba->cfg_hdw_queue = qmin;
10002 /* Update link speed if forced link speed is supported */
10003 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10004 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
10005 forced_link_speed =
10006 bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
10007 if (forced_link_speed) {
10008 phba->hba_flag |= HBA_FORCED_LINK_SPEED;
10010 switch (forced_link_speed) {
10011 case LINK_SPEED_1G:
10012 phba->cfg_link_speed =
10013 LPFC_USER_LINK_SPEED_1G;
10015 case LINK_SPEED_2G:
10016 phba->cfg_link_speed =
10017 LPFC_USER_LINK_SPEED_2G;
10019 case LINK_SPEED_4G:
10020 phba->cfg_link_speed =
10021 LPFC_USER_LINK_SPEED_4G;
10023 case LINK_SPEED_8G:
10024 phba->cfg_link_speed =
10025 LPFC_USER_LINK_SPEED_8G;
10027 case LINK_SPEED_10G:
10028 phba->cfg_link_speed =
10029 LPFC_USER_LINK_SPEED_10G;
10031 case LINK_SPEED_16G:
10032 phba->cfg_link_speed =
10033 LPFC_USER_LINK_SPEED_16G;
10035 case LINK_SPEED_32G:
10036 phba->cfg_link_speed =
10037 LPFC_USER_LINK_SPEED_32G;
10039 case LINK_SPEED_64G:
10040 phba->cfg_link_speed =
10041 LPFC_USER_LINK_SPEED_64G;
10044 phba->cfg_link_speed =
10045 LPFC_USER_LINK_SPEED_AUTO;
10048 lpfc_printf_log(phba, KERN_ERR,
10050 "0047 Unrecognized link "
10052 forced_link_speed);
10053 phba->cfg_link_speed =
10054 LPFC_USER_LINK_SPEED_AUTO;
10059 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
10060 length = phba->sli4_hba.max_cfg_param.max_xri -
10061 lpfc_sli4_get_els_iocb_cnt(phba);
10062 if (phba->cfg_hba_queue_depth > length) {
10063 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10064 "3361 HBA queue depth changed from %d to %d\n",
10065 phba->cfg_hba_queue_depth, length);
10066 phba->cfg_hba_queue_depth = length;
10069 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
10070 LPFC_SLI_INTF_IF_TYPE_2)
10073 /* get the pf# and vf# for SLI4 if_type 2 port */
10074 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
10075 sizeof(struct lpfc_sli4_cfg_mhdr));
10076 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
10077 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
10078 length, LPFC_SLI4_MBX_EMBED);
10080 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
10081 shdr = (union lpfc_sli4_cfg_shdr *)
10082 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
10083 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10084 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10085 if (rc2 || shdr_status || shdr_add_status) {
10086 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10087 "3026 Mailbox failed , mbxCmd x%x "
10088 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
10089 bf_get(lpfc_mqe_command, &pmb->u.mqe),
10090 bf_get(lpfc_mqe_status, &pmb->u.mqe));
10094 /* search for fc_fcoe resrouce descriptor */
10095 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
10097 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
10098 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
10099 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
10100 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
10101 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
10102 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
10105 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
10106 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
10107 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
10108 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
10109 phba->sli4_hba.iov.pf_number =
10110 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
10111 phba->sli4_hba.iov.vf_number =
10112 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
10117 if (i < LPFC_RSRC_DESC_MAX_NUM)
10118 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10119 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
10120 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
10121 phba->sli4_hba.iov.vf_number);
10123 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10124 "3028 GET_FUNCTION_CONFIG: failed to find "
10125 "Resource Descriptor:x%x\n",
10126 LPFC_RSRC_DESC_TYPE_FCFCOE);
10129 mempool_free(pmb, phba->mbox_mem_pool);
10134 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
10135 * @phba: pointer to lpfc hba data structure.
10137 * This routine is invoked to setup the port-side endian order when
10138 * the port if_type is 0. This routine has no function for other
10143 * -ENOMEM - No available memory
10144 * -EIO - The mailbox failed to complete successfully.
10147 lpfc_setup_endian_order(struct lpfc_hba *phba)
10149 LPFC_MBOXQ_t *mboxq;
10150 uint32_t if_type, rc = 0;
10151 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
10152 HOST_ENDIAN_HIGH_WORD1};
10154 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10156 case LPFC_SLI_INTF_IF_TYPE_0:
10157 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
10160 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10161 "0492 Unable to allocate memory for "
10162 "issuing SLI_CONFIG_SPECIAL mailbox "
10168 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
10169 * two words to contain special data values and no other data.
10171 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
10172 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
10173 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10174 if (rc != MBX_SUCCESS) {
10175 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10176 "0493 SLI_CONFIG_SPECIAL mailbox "
10177 "failed with status x%x\n",
10181 mempool_free(mboxq, phba->mbox_mem_pool);
10183 case LPFC_SLI_INTF_IF_TYPE_6:
10184 case LPFC_SLI_INTF_IF_TYPE_2:
10185 case LPFC_SLI_INTF_IF_TYPE_1:
10193 * lpfc_sli4_queue_verify - Verify and update EQ counts
10194 * @phba: pointer to lpfc hba data structure.
10196 * This routine is invoked to check the user settable queue counts for EQs.
10197 * After this routine is called the counts will be set to valid values that
10198 * adhere to the constraints of the system's interrupt vectors and the port's
10203 * -ENOMEM - No available memory
10206 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
10209 * Sanity check for configured queue parameters against the run-time
10210 * device parameters
10213 if (phba->nvmet_support) {
10214 if (phba->cfg_hdw_queue < phba->cfg_nvmet_mrq)
10215 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
10216 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
10217 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
10220 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10221 "2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
10222 phba->cfg_hdw_queue, phba->cfg_irq_chann,
10223 phba->cfg_nvmet_mrq);
10225 /* Get EQ depth from module parameter, fake the default for now */
10226 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
10227 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
10229 /* Get CQ depth from module parameter, fake the default for now */
10230 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
10231 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
10236 lpfc_alloc_io_wq_cq(struct lpfc_hba *phba, int idx)
10238 struct lpfc_queue *qdesc;
10242 cpu = lpfc_find_cpu_handle(phba, idx, LPFC_FIND_BY_HDWQ);
10243 /* Create Fast Path IO CQs */
10244 if (phba->enab_exp_wqcq_pages)
10245 /* Increase the CQ size when WQEs contain an embedded cdb */
10246 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
10247 phba->sli4_hba.cq_esize,
10248 LPFC_CQE_EXP_COUNT, cpu);
10251 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10252 phba->sli4_hba.cq_esize,
10253 phba->sli4_hba.cq_ecount, cpu);
10255 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10256 "0499 Failed allocate fast-path IO CQ (%d)\n",
10260 qdesc->qe_valid = 1;
10262 qdesc->chann = cpu;
10263 phba->sli4_hba.hdwq[idx].io_cq = qdesc;
10265 /* Create Fast Path IO WQs */
10266 if (phba->enab_exp_wqcq_pages) {
10267 /* Increase the WQ size when WQEs contain an embedded cdb */
10268 wqesize = (phba->fcp_embed_io) ?
10269 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
10270 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
10272 LPFC_WQE_EXP_COUNT, cpu);
10274 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10275 phba->sli4_hba.wq_esize,
10276 phba->sli4_hba.wq_ecount, cpu);
10279 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10280 "0503 Failed allocate fast-path IO WQ (%d)\n",
10285 qdesc->chann = cpu;
10286 phba->sli4_hba.hdwq[idx].io_wq = qdesc;
10287 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10292 * lpfc_sli4_queue_create - Create all the SLI4 queues
10293 * @phba: pointer to lpfc hba data structure.
10295 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
10296 * operation. For each SLI4 queue type, the parameters such as queue entry
10297 * count (queue depth) shall be taken from the module parameter. For now,
10298 * we just use some constant number as place holder.
10302 * -ENOMEM - No availble memory
10303 * -EIO - The mailbox failed to complete successfully.
10306 lpfc_sli4_queue_create(struct lpfc_hba *phba)
10308 struct lpfc_queue *qdesc;
10309 int idx, cpu, eqcpu;
10310 struct lpfc_sli4_hdw_queue *qp;
10311 struct lpfc_vector_map_info *cpup;
10312 struct lpfc_vector_map_info *eqcpup;
10313 struct lpfc_eq_intr_info *eqi;
10316 * Create HBA Record arrays.
10317 * Both NVME and FCP will share that same vectors / EQs
10319 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
10320 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
10321 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
10322 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
10323 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
10324 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
10325 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
10326 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
10327 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
10328 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
10330 if (!phba->sli4_hba.hdwq) {
10331 phba->sli4_hba.hdwq = kcalloc(
10332 phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue),
10334 if (!phba->sli4_hba.hdwq) {
10335 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10336 "6427 Failed allocate memory for "
10337 "fast-path Hardware Queue array\n");
10340 /* Prepare hardware queues to take IO buffers */
10341 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10342 qp = &phba->sli4_hba.hdwq[idx];
10343 spin_lock_init(&qp->io_buf_list_get_lock);
10344 spin_lock_init(&qp->io_buf_list_put_lock);
10345 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
10346 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
10347 qp->get_io_bufs = 0;
10348 qp->put_io_bufs = 0;
10349 qp->total_io_bufs = 0;
10350 spin_lock_init(&qp->abts_io_buf_list_lock);
10351 INIT_LIST_HEAD(&qp->lpfc_abts_io_buf_list);
10352 qp->abts_scsi_io_bufs = 0;
10353 qp->abts_nvme_io_bufs = 0;
10354 INIT_LIST_HEAD(&qp->sgl_list);
10355 INIT_LIST_HEAD(&qp->cmd_rsp_buf_list);
10356 spin_lock_init(&qp->hdwq_lock);
10360 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10361 if (phba->nvmet_support) {
10362 phba->sli4_hba.nvmet_cqset = kcalloc(
10363 phba->cfg_nvmet_mrq,
10364 sizeof(struct lpfc_queue *),
10366 if (!phba->sli4_hba.nvmet_cqset) {
10367 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10368 "3121 Fail allocate memory for "
10369 "fast-path CQ set array\n");
10372 phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
10373 phba->cfg_nvmet_mrq,
10374 sizeof(struct lpfc_queue *),
10376 if (!phba->sli4_hba.nvmet_mrq_hdr) {
10377 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10378 "3122 Fail allocate memory for "
10379 "fast-path RQ set hdr array\n");
10382 phba->sli4_hba.nvmet_mrq_data = kcalloc(
10383 phba->cfg_nvmet_mrq,
10384 sizeof(struct lpfc_queue *),
10386 if (!phba->sli4_hba.nvmet_mrq_data) {
10387 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10388 "3124 Fail allocate memory for "
10389 "fast-path RQ set data array\n");
10395 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
10397 /* Create HBA Event Queues (EQs) */
10398 for_each_present_cpu(cpu) {
10399 /* We only want to create 1 EQ per vector, even though
10400 * multiple CPUs might be using that vector. so only
10401 * selects the CPUs that are LPFC_CPU_FIRST_IRQ.
10403 cpup = &phba->sli4_hba.cpu_map[cpu];
10404 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
10407 /* Get a ptr to the Hardware Queue associated with this CPU */
10408 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
10410 /* Allocate an EQ */
10411 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10412 phba->sli4_hba.eq_esize,
10413 phba->sli4_hba.eq_ecount, cpu);
10415 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10416 "0497 Failed allocate EQ (%d)\n",
10420 qdesc->qe_valid = 1;
10421 qdesc->hdwq = cpup->hdwq;
10422 qdesc->chann = cpu; /* First CPU this EQ is affinitized to */
10423 qdesc->last_cpu = qdesc->chann;
10425 /* Save the allocated EQ in the Hardware Queue */
10426 qp->hba_eq = qdesc;
10428 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
10429 list_add(&qdesc->cpu_list, &eqi->list);
10432 /* Now we need to populate the other Hardware Queues, that share
10433 * an IRQ vector, with the associated EQ ptr.
10435 for_each_present_cpu(cpu) {
10436 cpup = &phba->sli4_hba.cpu_map[cpu];
10438 /* Check for EQ already allocated in previous loop */
10439 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
10442 /* Check for multiple CPUs per hdwq */
10443 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
10447 /* We need to share an EQ for this hdwq */
10448 eqcpu = lpfc_find_cpu_handle(phba, cpup->eq, LPFC_FIND_BY_EQ);
10449 eqcpup = &phba->sli4_hba.cpu_map[eqcpu];
10450 qp->hba_eq = phba->sli4_hba.hdwq[eqcpup->hdwq].hba_eq;
10453 /* Allocate IO Path SLI4 CQ/WQs */
10454 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10455 if (lpfc_alloc_io_wq_cq(phba, idx))
10459 if (phba->nvmet_support) {
10460 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
10461 cpu = lpfc_find_cpu_handle(phba, idx,
10462 LPFC_FIND_BY_HDWQ);
10463 qdesc = lpfc_sli4_queue_alloc(phba,
10464 LPFC_DEFAULT_PAGE_SIZE,
10465 phba->sli4_hba.cq_esize,
10466 phba->sli4_hba.cq_ecount,
10469 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10470 "3142 Failed allocate NVME "
10471 "CQ Set (%d)\n", idx);
10474 qdesc->qe_valid = 1;
10476 qdesc->chann = cpu;
10477 phba->sli4_hba.nvmet_cqset[idx] = qdesc;
10482 * Create Slow Path Completion Queues (CQs)
10485 cpu = lpfc_find_cpu_handle(phba, 0, LPFC_FIND_BY_EQ);
10486 /* Create slow-path Mailbox Command Complete Queue */
10487 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10488 phba->sli4_hba.cq_esize,
10489 phba->sli4_hba.cq_ecount, cpu);
10491 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10492 "0500 Failed allocate slow-path mailbox CQ\n");
10495 qdesc->qe_valid = 1;
10496 phba->sli4_hba.mbx_cq = qdesc;
10498 /* Create slow-path ELS Complete Queue */
10499 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10500 phba->sli4_hba.cq_esize,
10501 phba->sli4_hba.cq_ecount, cpu);
10503 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10504 "0501 Failed allocate slow-path ELS CQ\n");
10507 qdesc->qe_valid = 1;
10508 qdesc->chann = cpu;
10509 phba->sli4_hba.els_cq = qdesc;
10513 * Create Slow Path Work Queues (WQs)
10516 /* Create Mailbox Command Queue */
10518 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10519 phba->sli4_hba.mq_esize,
10520 phba->sli4_hba.mq_ecount, cpu);
10522 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10523 "0505 Failed allocate slow-path MQ\n");
10526 qdesc->chann = cpu;
10527 phba->sli4_hba.mbx_wq = qdesc;
10530 * Create ELS Work Queues
10533 /* Create slow-path ELS Work Queue */
10534 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10535 phba->sli4_hba.wq_esize,
10536 phba->sli4_hba.wq_ecount, cpu);
10538 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10539 "0504 Failed allocate slow-path ELS WQ\n");
10542 qdesc->chann = cpu;
10543 phba->sli4_hba.els_wq = qdesc;
10544 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10546 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10547 /* Create NVME LS Complete Queue */
10548 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10549 phba->sli4_hba.cq_esize,
10550 phba->sli4_hba.cq_ecount, cpu);
10552 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10553 "6079 Failed allocate NVME LS CQ\n");
10556 qdesc->chann = cpu;
10557 qdesc->qe_valid = 1;
10558 phba->sli4_hba.nvmels_cq = qdesc;
10560 /* Create NVME LS Work Queue */
10561 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10562 phba->sli4_hba.wq_esize,
10563 phba->sli4_hba.wq_ecount, cpu);
10565 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10566 "6080 Failed allocate NVME LS WQ\n");
10569 qdesc->chann = cpu;
10570 phba->sli4_hba.nvmels_wq = qdesc;
10571 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10575 * Create Receive Queue (RQ)
10578 /* Create Receive Queue for header */
10579 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10580 phba->sli4_hba.rq_esize,
10581 phba->sli4_hba.rq_ecount, cpu);
10583 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10584 "0506 Failed allocate receive HRQ\n");
10587 phba->sli4_hba.hdr_rq = qdesc;
10589 /* Create Receive Queue for data */
10590 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10591 phba->sli4_hba.rq_esize,
10592 phba->sli4_hba.rq_ecount, cpu);
10594 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10595 "0507 Failed allocate receive DRQ\n");
10598 phba->sli4_hba.dat_rq = qdesc;
10600 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
10601 phba->nvmet_support) {
10602 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
10603 cpu = lpfc_find_cpu_handle(phba, idx,
10604 LPFC_FIND_BY_HDWQ);
10605 /* Create NVMET Receive Queue for header */
10606 qdesc = lpfc_sli4_queue_alloc(phba,
10607 LPFC_DEFAULT_PAGE_SIZE,
10608 phba->sli4_hba.rq_esize,
10609 LPFC_NVMET_RQE_DEF_COUNT,
10612 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10613 "3146 Failed allocate "
10618 phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
10620 /* Only needed for header of RQ pair */
10621 qdesc->rqbp = kzalloc_node(sizeof(*qdesc->rqbp),
10624 if (qdesc->rqbp == NULL) {
10625 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10626 "6131 Failed allocate "
10631 /* Put list in known state in case driver load fails. */
10632 INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
10634 /* Create NVMET Receive Queue for data */
10635 qdesc = lpfc_sli4_queue_alloc(phba,
10636 LPFC_DEFAULT_PAGE_SIZE,
10637 phba->sli4_hba.rq_esize,
10638 LPFC_NVMET_RQE_DEF_COUNT,
10641 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10642 "3156 Failed allocate "
10647 phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
10651 /* Clear NVME stats */
10652 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10653 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10654 memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
10655 sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
10659 /* Clear SCSI stats */
10660 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
10661 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10662 memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
10663 sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
10670 lpfc_sli4_queue_destroy(phba);
10675 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
10678 lpfc_sli4_queue_free(*qp);
10684 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
10691 for (idx = 0; idx < max; idx++)
10692 __lpfc_sli4_release_queue(&(*qs)[idx]);
10699 lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
10701 struct lpfc_sli4_hdw_queue *hdwq;
10702 struct lpfc_queue *eq;
10705 hdwq = phba->sli4_hba.hdwq;
10707 /* Loop thru all Hardware Queues */
10708 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10709 /* Free the CQ/WQ corresponding to the Hardware Queue */
10710 lpfc_sli4_queue_free(hdwq[idx].io_cq);
10711 lpfc_sli4_queue_free(hdwq[idx].io_wq);
10712 hdwq[idx].hba_eq = NULL;
10713 hdwq[idx].io_cq = NULL;
10714 hdwq[idx].io_wq = NULL;
10715 if (phba->cfg_xpsgl && !phba->nvmet_support)
10716 lpfc_free_sgl_per_hdwq(phba, &hdwq[idx]);
10717 lpfc_free_cmd_rsp_buf_per_hdwq(phba, &hdwq[idx]);
10719 /* Loop thru all IRQ vectors */
10720 for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
10721 /* Free the EQ corresponding to the IRQ vector */
10722 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
10723 lpfc_sli4_queue_free(eq);
10724 phba->sli4_hba.hba_eq_hdl[idx].eq = NULL;
10729 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
10730 * @phba: pointer to lpfc hba data structure.
10732 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
10737 * -ENOMEM - No available memory
10738 * -EIO - The mailbox failed to complete successfully.
10741 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
10744 * Set FREE_INIT before beginning to free the queues.
10745 * Wait until the users of queues to acknowledge to
10746 * release queues by clearing FREE_WAIT.
10748 spin_lock_irq(&phba->hbalock);
10749 phba->sli.sli_flag |= LPFC_QUEUE_FREE_INIT;
10750 while (phba->sli.sli_flag & LPFC_QUEUE_FREE_WAIT) {
10751 spin_unlock_irq(&phba->hbalock);
10753 spin_lock_irq(&phba->hbalock);
10755 spin_unlock_irq(&phba->hbalock);
10757 lpfc_sli4_cleanup_poll_list(phba);
10759 /* Release HBA eqs */
10760 if (phba->sli4_hba.hdwq)
10761 lpfc_sli4_release_hdwq(phba);
10763 if (phba->nvmet_support) {
10764 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
10765 phba->cfg_nvmet_mrq);
10767 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
10768 phba->cfg_nvmet_mrq);
10769 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
10770 phba->cfg_nvmet_mrq);
10773 /* Release mailbox command work queue */
10774 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
10776 /* Release ELS work queue */
10777 __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
10779 /* Release ELS work queue */
10780 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
10782 /* Release unsolicited receive queue */
10783 __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
10784 __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
10786 /* Release ELS complete queue */
10787 __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
10789 /* Release NVME LS complete queue */
10790 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
10792 /* Release mailbox command complete queue */
10793 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
10795 /* Everything on this list has been freed */
10796 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
10798 /* Done with freeing the queues */
10799 spin_lock_irq(&phba->hbalock);
10800 phba->sli.sli_flag &= ~LPFC_QUEUE_FREE_INIT;
10801 spin_unlock_irq(&phba->hbalock);
10805 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
10807 struct lpfc_rqb *rqbp;
10808 struct lpfc_dmabuf *h_buf;
10809 struct rqb_dmabuf *rqb_buffer;
10812 while (!list_empty(&rqbp->rqb_buffer_list)) {
10813 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
10814 struct lpfc_dmabuf, list);
10816 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
10817 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
10818 rqbp->buffer_count--;
10824 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
10825 struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
10826 int qidx, uint32_t qtype)
10828 struct lpfc_sli_ring *pring;
10831 if (!eq || !cq || !wq) {
10832 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10833 "6085 Fast-path %s (%d) not allocated\n",
10834 ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
10838 /* create the Cq first */
10839 rc = lpfc_cq_create(phba, cq, eq,
10840 (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
10842 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10843 "6086 Failed setup of CQ (%d), rc = 0x%x\n",
10844 qidx, (uint32_t)rc);
10848 if (qtype != LPFC_MBOX) {
10849 /* Setup cq_map for fast lookup */
10851 *cq_map = cq->queue_id;
10853 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10854 "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
10855 qidx, cq->queue_id, qidx, eq->queue_id);
10857 /* create the wq */
10858 rc = lpfc_wq_create(phba, wq, cq, qtype);
10860 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10861 "4618 Fail setup fastpath WQ (%d), rc = 0x%x\n",
10862 qidx, (uint32_t)rc);
10863 /* no need to tear down cq - caller will do so */
10867 /* Bind this CQ/WQ to the NVME ring */
10869 pring->sli.sli4.wqp = (void *)wq;
10872 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10873 "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
10874 qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
10876 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
10878 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10879 "0539 Failed setup of slow-path MQ: "
10880 "rc = 0x%x\n", rc);
10881 /* no need to tear down cq - caller will do so */
10885 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10886 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
10887 phba->sli4_hba.mbx_wq->queue_id,
10888 phba->sli4_hba.mbx_cq->queue_id);
10895 * lpfc_setup_cq_lookup - Setup the CQ lookup table
10896 * @phba: pointer to lpfc hba data structure.
10898 * This routine will populate the cq_lookup table by all
10899 * available CQ queue_id's.
10902 lpfc_setup_cq_lookup(struct lpfc_hba *phba)
10904 struct lpfc_queue *eq, *childq;
10907 memset(phba->sli4_hba.cq_lookup, 0,
10908 (sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
10909 /* Loop thru all IRQ vectors */
10910 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
10911 /* Get the EQ corresponding to the IRQ vector */
10912 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
10915 /* Loop through all CQs associated with that EQ */
10916 list_for_each_entry(childq, &eq->child_list, list) {
10917 if (childq->queue_id > phba->sli4_hba.cq_max)
10919 if (childq->subtype == LPFC_IO)
10920 phba->sli4_hba.cq_lookup[childq->queue_id] =
10927 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
10928 * @phba: pointer to lpfc hba data structure.
10930 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
10935 * -ENOMEM - No available memory
10936 * -EIO - The mailbox failed to complete successfully.
10939 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
10941 uint32_t shdr_status, shdr_add_status;
10942 union lpfc_sli4_cfg_shdr *shdr;
10943 struct lpfc_vector_map_info *cpup;
10944 struct lpfc_sli4_hdw_queue *qp;
10945 LPFC_MBOXQ_t *mboxq;
10947 uint32_t length, usdelay;
10950 /* Check for dual-ULP support */
10951 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10953 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10954 "3249 Unable to allocate memory for "
10955 "QUERY_FW_CFG mailbox command\n");
10958 length = (sizeof(struct lpfc_mbx_query_fw_config) -
10959 sizeof(struct lpfc_sli4_cfg_mhdr));
10960 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10961 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
10962 length, LPFC_SLI4_MBX_EMBED);
10964 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10966 shdr = (union lpfc_sli4_cfg_shdr *)
10967 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
10968 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10969 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10970 if (shdr_status || shdr_add_status || rc) {
10971 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10972 "3250 QUERY_FW_CFG mailbox failed with status "
10973 "x%x add_status x%x, mbx status x%x\n",
10974 shdr_status, shdr_add_status, rc);
10975 mempool_free(mboxq, phba->mbox_mem_pool);
10980 phba->sli4_hba.fw_func_mode =
10981 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
10982 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
10983 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
10984 phba->sli4_hba.physical_port =
10985 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
10986 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10987 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
10988 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
10989 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
10991 mempool_free(mboxq, phba->mbox_mem_pool);
10994 * Set up HBA Event Queues (EQs)
10996 qp = phba->sli4_hba.hdwq;
10998 /* Set up HBA event queue */
11000 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11001 "3147 Fast-path EQs not allocated\n");
11006 /* Loop thru all IRQ vectors */
11007 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
11008 /* Create HBA Event Queues (EQs) in order */
11009 for_each_present_cpu(cpu) {
11010 cpup = &phba->sli4_hba.cpu_map[cpu];
11012 /* Look for the CPU thats using that vector with
11013 * LPFC_CPU_FIRST_IRQ set.
11015 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
11017 if (qidx != cpup->eq)
11020 /* Create an EQ for that vector */
11021 rc = lpfc_eq_create(phba, qp[cpup->hdwq].hba_eq,
11022 phba->cfg_fcp_imax);
11024 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11025 "0523 Failed setup of fast-path"
11026 " EQ (%d), rc = 0x%x\n",
11027 cpup->eq, (uint32_t)rc);
11031 /* Save the EQ for that vector in the hba_eq_hdl */
11032 phba->sli4_hba.hba_eq_hdl[cpup->eq].eq =
11033 qp[cpup->hdwq].hba_eq;
11035 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11036 "2584 HBA EQ setup: queue[%d]-id=%d\n",
11038 qp[cpup->hdwq].hba_eq->queue_id);
11042 /* Loop thru all Hardware Queues */
11043 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
11044 cpu = lpfc_find_cpu_handle(phba, qidx, LPFC_FIND_BY_HDWQ);
11045 cpup = &phba->sli4_hba.cpu_map[cpu];
11047 /* Create the CQ/WQ corresponding to the Hardware Queue */
11048 rc = lpfc_create_wq_cq(phba,
11049 phba->sli4_hba.hdwq[cpup->hdwq].hba_eq,
11052 &phba->sli4_hba.hdwq[qidx].io_cq_map,
11056 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11057 "0535 Failed to setup fastpath "
11058 "IO WQ/CQ (%d), rc = 0x%x\n",
11059 qidx, (uint32_t)rc);
11065 * Set up Slow Path Complete Queues (CQs)
11068 /* Set up slow-path MBOX CQ/MQ */
11070 if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
11071 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11072 "0528 %s not allocated\n",
11073 phba->sli4_hba.mbx_cq ?
11074 "Mailbox WQ" : "Mailbox CQ");
11079 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
11080 phba->sli4_hba.mbx_cq,
11081 phba->sli4_hba.mbx_wq,
11082 NULL, 0, LPFC_MBOX);
11084 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11085 "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
11089 if (phba->nvmet_support) {
11090 if (!phba->sli4_hba.nvmet_cqset) {
11091 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11092 "3165 Fast-path NVME CQ Set "
11093 "array not allocated\n");
11097 if (phba->cfg_nvmet_mrq > 1) {
11098 rc = lpfc_cq_create_set(phba,
11099 phba->sli4_hba.nvmet_cqset,
11101 LPFC_WCQ, LPFC_NVMET);
11103 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11104 "3164 Failed setup of NVME CQ "
11105 "Set, rc = 0x%x\n",
11110 /* Set up NVMET Receive Complete Queue */
11111 rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
11113 LPFC_WCQ, LPFC_NVMET);
11115 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11116 "6089 Failed setup NVMET CQ: "
11117 "rc = 0x%x\n", (uint32_t)rc);
11120 phba->sli4_hba.nvmet_cqset[0]->chann = 0;
11122 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11123 "6090 NVMET CQ setup: cq-id=%d, "
11124 "parent eq-id=%d\n",
11125 phba->sli4_hba.nvmet_cqset[0]->queue_id,
11126 qp[0].hba_eq->queue_id);
11130 /* Set up slow-path ELS WQ/CQ */
11131 if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
11132 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11133 "0530 ELS %s not allocated\n",
11134 phba->sli4_hba.els_cq ? "WQ" : "CQ");
11138 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
11139 phba->sli4_hba.els_cq,
11140 phba->sli4_hba.els_wq,
11141 NULL, 0, LPFC_ELS);
11143 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11144 "0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
11148 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11149 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
11150 phba->sli4_hba.els_wq->queue_id,
11151 phba->sli4_hba.els_cq->queue_id);
11153 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11154 /* Set up NVME LS Complete Queue */
11155 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
11156 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11157 "6091 LS %s not allocated\n",
11158 phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
11162 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
11163 phba->sli4_hba.nvmels_cq,
11164 phba->sli4_hba.nvmels_wq,
11165 NULL, 0, LPFC_NVME_LS);
11167 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11168 "0526 Failed setup of NVVME LS WQ/CQ: "
11169 "rc = 0x%x\n", (uint32_t)rc);
11173 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11174 "6096 ELS WQ setup: wq-id=%d, "
11175 "parent cq-id=%d\n",
11176 phba->sli4_hba.nvmels_wq->queue_id,
11177 phba->sli4_hba.nvmels_cq->queue_id);
11181 * Create NVMET Receive Queue (RQ)
11183 if (phba->nvmet_support) {
11184 if ((!phba->sli4_hba.nvmet_cqset) ||
11185 (!phba->sli4_hba.nvmet_mrq_hdr) ||
11186 (!phba->sli4_hba.nvmet_mrq_data)) {
11187 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11188 "6130 MRQ CQ Queues not "
11193 if (phba->cfg_nvmet_mrq > 1) {
11194 rc = lpfc_mrq_create(phba,
11195 phba->sli4_hba.nvmet_mrq_hdr,
11196 phba->sli4_hba.nvmet_mrq_data,
11197 phba->sli4_hba.nvmet_cqset,
11200 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11201 "6098 Failed setup of NVMET "
11202 "MRQ: rc = 0x%x\n",
11208 rc = lpfc_rq_create(phba,
11209 phba->sli4_hba.nvmet_mrq_hdr[0],
11210 phba->sli4_hba.nvmet_mrq_data[0],
11211 phba->sli4_hba.nvmet_cqset[0],
11214 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11215 "6057 Failed setup of NVMET "
11216 "Receive Queue: rc = 0x%x\n",
11222 phba, KERN_INFO, LOG_INIT,
11223 "6099 NVMET RQ setup: hdr-rq-id=%d, "
11224 "dat-rq-id=%d parent cq-id=%d\n",
11225 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
11226 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
11227 phba->sli4_hba.nvmet_cqset[0]->queue_id);
11232 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
11233 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11234 "0540 Receive Queue not allocated\n");
11239 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
11240 phba->sli4_hba.els_cq, LPFC_USOL);
11242 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11243 "0541 Failed setup of Receive Queue: "
11244 "rc = 0x%x\n", (uint32_t)rc);
11248 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11249 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
11250 "parent cq-id=%d\n",
11251 phba->sli4_hba.hdr_rq->queue_id,
11252 phba->sli4_hba.dat_rq->queue_id,
11253 phba->sli4_hba.els_cq->queue_id);
11255 if (phba->cfg_fcp_imax)
11256 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
11260 for (qidx = 0; qidx < phba->cfg_irq_chann;
11261 qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
11262 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
11265 if (phba->sli4_hba.cq_max) {
11266 kfree(phba->sli4_hba.cq_lookup);
11267 phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1),
11268 sizeof(struct lpfc_queue *), GFP_KERNEL);
11269 if (!phba->sli4_hba.cq_lookup) {
11270 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11271 "0549 Failed setup of CQ Lookup table: "
11272 "size 0x%x\n", phba->sli4_hba.cq_max);
11276 lpfc_setup_cq_lookup(phba);
11281 lpfc_sli4_queue_unset(phba);
11287 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
11288 * @phba: pointer to lpfc hba data structure.
11290 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
11295 * -ENOMEM - No available memory
11296 * -EIO - The mailbox failed to complete successfully.
11299 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
11301 struct lpfc_sli4_hdw_queue *qp;
11302 struct lpfc_queue *eq;
11305 /* Unset mailbox command work queue */
11306 if (phba->sli4_hba.mbx_wq)
11307 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
11309 /* Unset NVME LS work queue */
11310 if (phba->sli4_hba.nvmels_wq)
11311 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
11313 /* Unset ELS work queue */
11314 if (phba->sli4_hba.els_wq)
11315 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
11317 /* Unset unsolicited receive queue */
11318 if (phba->sli4_hba.hdr_rq)
11319 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
11320 phba->sli4_hba.dat_rq);
11322 /* Unset mailbox command complete queue */
11323 if (phba->sli4_hba.mbx_cq)
11324 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
11326 /* Unset ELS complete queue */
11327 if (phba->sli4_hba.els_cq)
11328 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
11330 /* Unset NVME LS complete queue */
11331 if (phba->sli4_hba.nvmels_cq)
11332 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
11334 if (phba->nvmet_support) {
11335 /* Unset NVMET MRQ queue */
11336 if (phba->sli4_hba.nvmet_mrq_hdr) {
11337 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
11340 phba->sli4_hba.nvmet_mrq_hdr[qidx],
11341 phba->sli4_hba.nvmet_mrq_data[qidx]);
11344 /* Unset NVMET CQ Set complete queue */
11345 if (phba->sli4_hba.nvmet_cqset) {
11346 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
11348 phba, phba->sli4_hba.nvmet_cqset[qidx]);
11352 /* Unset fast-path SLI4 queues */
11353 if (phba->sli4_hba.hdwq) {
11354 /* Loop thru all Hardware Queues */
11355 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
11356 /* Destroy the CQ/WQ corresponding to Hardware Queue */
11357 qp = &phba->sli4_hba.hdwq[qidx];
11358 lpfc_wq_destroy(phba, qp->io_wq);
11359 lpfc_cq_destroy(phba, qp->io_cq);
11361 /* Loop thru all IRQ vectors */
11362 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
11363 /* Destroy the EQ corresponding to the IRQ vector */
11364 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
11365 lpfc_eq_destroy(phba, eq);
11369 kfree(phba->sli4_hba.cq_lookup);
11370 phba->sli4_hba.cq_lookup = NULL;
11371 phba->sli4_hba.cq_max = 0;
11375 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
11376 * @phba: pointer to lpfc hba data structure.
11378 * This routine is invoked to allocate and set up a pool of completion queue
11379 * events. The body of the completion queue event is a completion queue entry
11380 * CQE. For now, this pool is used for the interrupt service routine to queue
11381 * the following HBA completion queue events for the worker thread to process:
11382 * - Mailbox asynchronous events
11383 * - Receive queue completion unsolicited events
11384 * Later, this can be used for all the slow-path events.
11388 * -ENOMEM - No available memory
11391 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
11393 struct lpfc_cq_event *cq_event;
11396 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
11397 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
11399 goto out_pool_create_fail;
11400 list_add_tail(&cq_event->list,
11401 &phba->sli4_hba.sp_cqe_event_pool);
11405 out_pool_create_fail:
11406 lpfc_sli4_cq_event_pool_destroy(phba);
11411 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
11412 * @phba: pointer to lpfc hba data structure.
11414 * This routine is invoked to free the pool of completion queue events at
11415 * driver unload time. Note that, it is the responsibility of the driver
11416 * cleanup routine to free all the outstanding completion-queue events
11417 * allocated from this pool back into the pool before invoking this routine
11418 * to destroy the pool.
11421 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
11423 struct lpfc_cq_event *cq_event, *next_cq_event;
11425 list_for_each_entry_safe(cq_event, next_cq_event,
11426 &phba->sli4_hba.sp_cqe_event_pool, list) {
11427 list_del(&cq_event->list);
11433 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
11434 * @phba: pointer to lpfc hba data structure.
11436 * This routine is the lock free version of the API invoked to allocate a
11437 * completion-queue event from the free pool.
11439 * Return: Pointer to the newly allocated completion-queue event if successful
11442 struct lpfc_cq_event *
11443 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
11445 struct lpfc_cq_event *cq_event = NULL;
11447 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
11448 struct lpfc_cq_event, list);
11453 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
11454 * @phba: pointer to lpfc hba data structure.
11456 * This routine is the lock version of the API invoked to allocate a
11457 * completion-queue event from the free pool.
11459 * Return: Pointer to the newly allocated completion-queue event if successful
11462 struct lpfc_cq_event *
11463 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
11465 struct lpfc_cq_event *cq_event;
11466 unsigned long iflags;
11468 spin_lock_irqsave(&phba->hbalock, iflags);
11469 cq_event = __lpfc_sli4_cq_event_alloc(phba);
11470 spin_unlock_irqrestore(&phba->hbalock, iflags);
11475 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
11476 * @phba: pointer to lpfc hba data structure.
11477 * @cq_event: pointer to the completion queue event to be freed.
11479 * This routine is the lock free version of the API invoked to release a
11480 * completion-queue event back into the free pool.
11483 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
11484 struct lpfc_cq_event *cq_event)
11486 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
11490 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
11491 * @phba: pointer to lpfc hba data structure.
11492 * @cq_event: pointer to the completion queue event to be freed.
11494 * This routine is the lock version of the API invoked to release a
11495 * completion-queue event back into the free pool.
11498 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
11499 struct lpfc_cq_event *cq_event)
11501 unsigned long iflags;
11502 spin_lock_irqsave(&phba->hbalock, iflags);
11503 __lpfc_sli4_cq_event_release(phba, cq_event);
11504 spin_unlock_irqrestore(&phba->hbalock, iflags);
11508 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
11509 * @phba: pointer to lpfc hba data structure.
11511 * This routine is to free all the pending completion-queue events to the
11512 * back into the free pool for device reset.
11515 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
11517 LIST_HEAD(cq_event_list);
11518 struct lpfc_cq_event *cq_event;
11519 unsigned long iflags;
11521 /* Retrieve all the pending WCQEs from pending WCQE lists */
11523 /* Pending ELS XRI abort events */
11524 spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
11525 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
11527 spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
11529 /* Pending asynnc events */
11530 spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
11531 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
11533 spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
11535 while (!list_empty(&cq_event_list)) {
11536 list_remove_head(&cq_event_list, cq_event,
11537 struct lpfc_cq_event, list);
11538 lpfc_sli4_cq_event_release(phba, cq_event);
11543 * lpfc_pci_function_reset - Reset pci function.
11544 * @phba: pointer to lpfc hba data structure.
11546 * This routine is invoked to request a PCI function reset. It will destroys
11547 * all resources assigned to the PCI function which originates this request.
11551 * -ENOMEM - No available memory
11552 * -EIO - The mailbox failed to complete successfully.
11555 lpfc_pci_function_reset(struct lpfc_hba *phba)
11557 LPFC_MBOXQ_t *mboxq;
11558 uint32_t rc = 0, if_type;
11559 uint32_t shdr_status, shdr_add_status;
11561 uint32_t port_reset = 0;
11562 union lpfc_sli4_cfg_shdr *shdr;
11563 struct lpfc_register reg_data;
11566 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11568 case LPFC_SLI_INTF_IF_TYPE_0:
11569 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
11572 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11573 "0494 Unable to allocate memory for "
11574 "issuing SLI_FUNCTION_RESET mailbox "
11579 /* Setup PCI function reset mailbox-ioctl command */
11580 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
11581 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
11582 LPFC_SLI4_MBX_EMBED);
11583 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11584 shdr = (union lpfc_sli4_cfg_shdr *)
11585 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
11586 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11587 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
11589 mempool_free(mboxq, phba->mbox_mem_pool);
11590 if (shdr_status || shdr_add_status || rc) {
11591 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11592 "0495 SLI_FUNCTION_RESET mailbox "
11593 "failed with status x%x add_status x%x,"
11594 " mbx status x%x\n",
11595 shdr_status, shdr_add_status, rc);
11599 case LPFC_SLI_INTF_IF_TYPE_2:
11600 case LPFC_SLI_INTF_IF_TYPE_6:
11603 * Poll the Port Status Register and wait for RDY for
11604 * up to 30 seconds. If the port doesn't respond, treat
11607 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
11608 if (lpfc_readl(phba->sli4_hba.u.if_type2.
11609 STATUSregaddr, ®_data.word0)) {
11613 if (bf_get(lpfc_sliport_status_rdy, ®_data))
11618 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) {
11619 phba->work_status[0] = readl(
11620 phba->sli4_hba.u.if_type2.ERR1regaddr);
11621 phba->work_status[1] = readl(
11622 phba->sli4_hba.u.if_type2.ERR2regaddr);
11623 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11624 "2890 Port not ready, port status reg "
11625 "0x%x error 1=0x%x, error 2=0x%x\n",
11627 phba->work_status[0],
11628 phba->work_status[1]);
11633 if (bf_get(lpfc_sliport_status_pldv, ®_data))
11634 lpfc_pldv_detect = true;
11638 * Reset the port now
11640 reg_data.word0 = 0;
11641 bf_set(lpfc_sliport_ctrl_end, ®_data,
11642 LPFC_SLIPORT_LITTLE_ENDIAN);
11643 bf_set(lpfc_sliport_ctrl_ip, ®_data,
11644 LPFC_SLIPORT_INIT_PORT);
11645 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
11648 pci_read_config_word(phba->pcidev,
11649 PCI_DEVICE_ID, &devid);
11654 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) {
11660 case LPFC_SLI_INTF_IF_TYPE_1:
11666 /* Catch the not-ready port failure after a port reset. */
11668 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11669 "3317 HBA not functional: IP Reset Failed "
11670 "try: echo fw_reset > board_mode\n");
11678 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
11679 * @phba: pointer to lpfc hba data structure.
11681 * This routine is invoked to set up the PCI device memory space for device
11682 * with SLI-4 interface spec.
11686 * other values - error
11689 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
11691 struct pci_dev *pdev = phba->pcidev;
11692 unsigned long bar0map_len, bar1map_len, bar2map_len;
11699 /* Set the device DMA mask size */
11700 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
11702 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
11707 * The BARs and register set definitions and offset locations are
11708 * dependent on the if_type.
11710 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
11711 &phba->sli4_hba.sli_intf.word0)) {
11715 /* There is no SLI3 failback for SLI4 devices. */
11716 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
11717 LPFC_SLI_INTF_VALID) {
11718 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11719 "2894 SLI_INTF reg contents invalid "
11720 "sli_intf reg 0x%x\n",
11721 phba->sli4_hba.sli_intf.word0);
11725 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11727 * Get the bus address of SLI4 device Bar regions and the
11728 * number of bytes required by each mapping. The mapping of the
11729 * particular PCI BARs regions is dependent on the type of
11732 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
11733 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
11734 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
11737 * Map SLI4 PCI Config Space Register base to a kernel virtual
11740 phba->sli4_hba.conf_regs_memmap_p =
11741 ioremap(phba->pci_bar0_map, bar0map_len);
11742 if (!phba->sli4_hba.conf_regs_memmap_p) {
11743 dev_printk(KERN_ERR, &pdev->dev,
11744 "ioremap failed for SLI4 PCI config "
11748 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
11749 /* Set up BAR0 PCI config space register memory map */
11750 lpfc_sli4_bar0_register_memmap(phba, if_type);
11752 phba->pci_bar0_map = pci_resource_start(pdev, 1);
11753 bar0map_len = pci_resource_len(pdev, 1);
11754 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
11755 dev_printk(KERN_ERR, &pdev->dev,
11756 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
11759 phba->sli4_hba.conf_regs_memmap_p =
11760 ioremap(phba->pci_bar0_map, bar0map_len);
11761 if (!phba->sli4_hba.conf_regs_memmap_p) {
11762 dev_printk(KERN_ERR, &pdev->dev,
11763 "ioremap failed for SLI4 PCI config "
11767 lpfc_sli4_bar0_register_memmap(phba, if_type);
11770 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
11771 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
11773 * Map SLI4 if type 0 HBA Control Register base to a
11774 * kernel virtual address and setup the registers.
11776 phba->pci_bar1_map = pci_resource_start(pdev,
11778 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
11779 phba->sli4_hba.ctrl_regs_memmap_p =
11780 ioremap(phba->pci_bar1_map,
11782 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
11783 dev_err(&pdev->dev,
11784 "ioremap failed for SLI4 HBA "
11785 "control registers.\n");
11787 goto out_iounmap_conf;
11789 phba->pci_bar2_memmap_p =
11790 phba->sli4_hba.ctrl_regs_memmap_p;
11791 lpfc_sli4_bar1_register_memmap(phba, if_type);
11794 goto out_iounmap_conf;
11798 if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
11799 (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
11801 * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
11802 * virtual address and setup the registers.
11804 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
11805 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
11806 phba->sli4_hba.drbl_regs_memmap_p =
11807 ioremap(phba->pci_bar1_map, bar1map_len);
11808 if (!phba->sli4_hba.drbl_regs_memmap_p) {
11809 dev_err(&pdev->dev,
11810 "ioremap failed for SLI4 HBA doorbell registers.\n");
11812 goto out_iounmap_conf;
11814 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
11815 lpfc_sli4_bar1_register_memmap(phba, if_type);
11818 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
11819 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
11821 * Map SLI4 if type 0 HBA Doorbell Register base to
11822 * a kernel virtual address and setup the registers.
11824 phba->pci_bar2_map = pci_resource_start(pdev,
11826 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
11827 phba->sli4_hba.drbl_regs_memmap_p =
11828 ioremap(phba->pci_bar2_map,
11830 if (!phba->sli4_hba.drbl_regs_memmap_p) {
11831 dev_err(&pdev->dev,
11832 "ioremap failed for SLI4 HBA"
11833 " doorbell registers.\n");
11835 goto out_iounmap_ctrl;
11837 phba->pci_bar4_memmap_p =
11838 phba->sli4_hba.drbl_regs_memmap_p;
11839 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
11841 goto out_iounmap_all;
11844 goto out_iounmap_all;
11848 if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
11849 pci_resource_start(pdev, PCI_64BIT_BAR4)) {
11851 * Map SLI4 if type 6 HBA DPP Register base to a kernel
11852 * virtual address and setup the registers.
11854 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
11855 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
11856 phba->sli4_hba.dpp_regs_memmap_p =
11857 ioremap(phba->pci_bar2_map, bar2map_len);
11858 if (!phba->sli4_hba.dpp_regs_memmap_p) {
11859 dev_err(&pdev->dev,
11860 "ioremap failed for SLI4 HBA dpp registers.\n");
11862 goto out_iounmap_ctrl;
11864 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
11867 /* Set up the EQ/CQ register handeling functions now */
11869 case LPFC_SLI_INTF_IF_TYPE_0:
11870 case LPFC_SLI_INTF_IF_TYPE_2:
11871 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
11872 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
11873 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
11875 case LPFC_SLI_INTF_IF_TYPE_6:
11876 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
11877 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
11878 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
11887 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
11889 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
11891 iounmap(phba->sli4_hba.conf_regs_memmap_p);
11897 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
11898 * @phba: pointer to lpfc hba data structure.
11900 * This routine is invoked to unset the PCI device memory space for device
11901 * with SLI-4 interface spec.
11904 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
11907 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11910 case LPFC_SLI_INTF_IF_TYPE_0:
11911 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
11912 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
11913 iounmap(phba->sli4_hba.conf_regs_memmap_p);
11915 case LPFC_SLI_INTF_IF_TYPE_2:
11916 iounmap(phba->sli4_hba.conf_regs_memmap_p);
11918 case LPFC_SLI_INTF_IF_TYPE_6:
11919 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
11920 iounmap(phba->sli4_hba.conf_regs_memmap_p);
11921 if (phba->sli4_hba.dpp_regs_memmap_p)
11922 iounmap(phba->sli4_hba.dpp_regs_memmap_p);
11924 case LPFC_SLI_INTF_IF_TYPE_1:
11926 dev_printk(KERN_ERR, &phba->pcidev->dev,
11927 "FATAL - unsupported SLI4 interface type - %d\n",
11934 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
11935 * @phba: pointer to lpfc hba data structure.
11937 * This routine is invoked to enable the MSI-X interrupt vectors to device
11938 * with SLI-3 interface specs.
11942 * other values - error
11945 lpfc_sli_enable_msix(struct lpfc_hba *phba)
11950 /* Set up MSI-X multi-message vectors */
11951 rc = pci_alloc_irq_vectors(phba->pcidev,
11952 LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
11954 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11955 "0420 PCI enable MSI-X failed (%d)\n", rc);
11960 * Assign MSI-X vectors to interrupt handlers
11963 /* vector-0 is associated to slow-path handler */
11964 rc = request_irq(pci_irq_vector(phba->pcidev, 0),
11965 &lpfc_sli_sp_intr_handler, 0,
11966 LPFC_SP_DRIVER_HANDLER_NAME, phba);
11968 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11969 "0421 MSI-X slow-path request_irq failed "
11974 /* vector-1 is associated to fast-path handler */
11975 rc = request_irq(pci_irq_vector(phba->pcidev, 1),
11976 &lpfc_sli_fp_intr_handler, 0,
11977 LPFC_FP_DRIVER_HANDLER_NAME, phba);
11980 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11981 "0429 MSI-X fast-path request_irq failed "
11987 * Configure HBA MSI-X attention conditions to messages
11989 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11993 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11994 "0474 Unable to allocate memory for issuing "
11995 "MBOX_CONFIG_MSI command\n");
11998 rc = lpfc_config_msi(phba, pmb);
12001 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
12002 if (rc != MBX_SUCCESS) {
12003 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
12004 "0351 Config MSI mailbox command failed, "
12005 "mbxCmd x%x, mbxStatus x%x\n",
12006 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
12010 /* Free memory allocated for mailbox command */
12011 mempool_free(pmb, phba->mbox_mem_pool);
12015 /* Free memory allocated for mailbox command */
12016 mempool_free(pmb, phba->mbox_mem_pool);
12019 /* free the irq already requested */
12020 free_irq(pci_irq_vector(phba->pcidev, 1), phba);
12023 /* free the irq already requested */
12024 free_irq(pci_irq_vector(phba->pcidev, 0), phba);
12027 /* Unconfigure MSI-X capability structure */
12028 pci_free_irq_vectors(phba->pcidev);
12035 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
12036 * @phba: pointer to lpfc hba data structure.
12038 * This routine is invoked to enable the MSI interrupt mode to device with
12039 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
12040 * enable the MSI vector. The device driver is responsible for calling the
12041 * request_irq() to register MSI vector with a interrupt the handler, which
12042 * is done in this function.
12046 * other values - error
12049 lpfc_sli_enable_msi(struct lpfc_hba *phba)
12053 rc = pci_enable_msi(phba->pcidev);
12055 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12056 "0462 PCI enable MSI mode success.\n");
12058 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12059 "0471 PCI enable MSI mode failed (%d)\n", rc);
12063 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
12064 0, LPFC_DRIVER_NAME, phba);
12066 pci_disable_msi(phba->pcidev);
12067 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12068 "0478 MSI request_irq failed (%d)\n", rc);
12074 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
12075 * @phba: pointer to lpfc hba data structure.
12076 * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
12078 * This routine is invoked to enable device interrupt and associate driver's
12079 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
12080 * spec. Depends on the interrupt mode configured to the driver, the driver
12081 * will try to fallback from the configured interrupt mode to an interrupt
12082 * mode which is supported by the platform, kernel, and device in the order
12084 * MSI-X -> MSI -> IRQ.
12088 * other values - error
12091 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
12093 uint32_t intr_mode = LPFC_INTR_ERROR;
12096 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
12097 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
12100 phba->hba_flag &= ~HBA_NEEDS_CFG_PORT;
12102 if (cfg_mode == 2) {
12103 /* Now, try to enable MSI-X interrupt mode */
12104 retval = lpfc_sli_enable_msix(phba);
12106 /* Indicate initialization to MSI-X mode */
12107 phba->intr_type = MSIX;
12112 /* Fallback to MSI if MSI-X initialization failed */
12113 if (cfg_mode >= 1 && phba->intr_type == NONE) {
12114 retval = lpfc_sli_enable_msi(phba);
12116 /* Indicate initialization to MSI mode */
12117 phba->intr_type = MSI;
12122 /* Fallback to INTx if both MSI-X/MSI initalization failed */
12123 if (phba->intr_type == NONE) {
12124 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
12125 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
12127 /* Indicate initialization to INTx mode */
12128 phba->intr_type = INTx;
12136 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
12137 * @phba: pointer to lpfc hba data structure.
12139 * This routine is invoked to disable device interrupt and disassociate the
12140 * driver's interrupt handler(s) from interrupt vector(s) to device with
12141 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
12142 * release the interrupt vector(s) for the message signaled interrupt.
12145 lpfc_sli_disable_intr(struct lpfc_hba *phba)
12149 if (phba->intr_type == MSIX)
12150 nr_irqs = LPFC_MSIX_VECTORS;
12154 for (i = 0; i < nr_irqs; i++)
12155 free_irq(pci_irq_vector(phba->pcidev, i), phba);
12156 pci_free_irq_vectors(phba->pcidev);
12158 /* Reset interrupt management states */
12159 phba->intr_type = NONE;
12160 phba->sli.slistat.sli_intr = 0;
12164 * lpfc_find_cpu_handle - Find the CPU that corresponds to the specified Queue
12165 * @phba: pointer to lpfc hba data structure.
12166 * @id: EQ vector index or Hardware Queue index
12167 * @match: LPFC_FIND_BY_EQ = match by EQ
12168 * LPFC_FIND_BY_HDWQ = match by Hardware Queue
12169 * Return the CPU that matches the selection criteria
12172 lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
12174 struct lpfc_vector_map_info *cpup;
12177 /* Loop through all CPUs */
12178 for_each_present_cpu(cpu) {
12179 cpup = &phba->sli4_hba.cpu_map[cpu];
12181 /* If we are matching by EQ, there may be multiple CPUs using
12182 * using the same vector, so select the one with
12183 * LPFC_CPU_FIRST_IRQ set.
12185 if ((match == LPFC_FIND_BY_EQ) &&
12186 (cpup->flag & LPFC_CPU_FIRST_IRQ) &&
12190 /* If matching by HDWQ, select the first CPU that matches */
12191 if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
12199 * lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
12200 * @phba: pointer to lpfc hba data structure.
12201 * @cpu: CPU map index
12202 * @phys_id: CPU package physical id
12203 * @core_id: CPU core id
12206 lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
12207 uint16_t phys_id, uint16_t core_id)
12209 struct lpfc_vector_map_info *cpup;
12212 for_each_present_cpu(idx) {
12213 cpup = &phba->sli4_hba.cpu_map[idx];
12214 /* Does the cpup match the one we are looking for */
12215 if ((cpup->phys_id == phys_id) &&
12216 (cpup->core_id == core_id) &&
12225 * lpfc_assign_eq_map_info - Assigns eq for vector_map structure
12226 * @phba: pointer to lpfc hba data structure.
12227 * @eqidx: index for eq and irq vector
12228 * @flag: flags to set for vector_map structure
12229 * @cpu: cpu used to index vector_map structure
12231 * The routine assigns eq info into vector_map structure
12234 lpfc_assign_eq_map_info(struct lpfc_hba *phba, uint16_t eqidx, uint16_t flag,
12237 struct lpfc_vector_map_info *cpup = &phba->sli4_hba.cpu_map[cpu];
12238 struct lpfc_hba_eq_hdl *eqhdl = lpfc_get_eq_hdl(eqidx);
12241 cpup->flag |= flag;
12243 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12244 "3336 Set Affinity: CPU %d irq %d eq %d flag x%x\n",
12245 cpu, eqhdl->irq, cpup->eq, cpup->flag);
12249 * lpfc_cpu_map_array_init - Initialize cpu_map structure
12250 * @phba: pointer to lpfc hba data structure.
12252 * The routine initializes the cpu_map array structure
12255 lpfc_cpu_map_array_init(struct lpfc_hba *phba)
12257 struct lpfc_vector_map_info *cpup;
12258 struct lpfc_eq_intr_info *eqi;
12261 for_each_possible_cpu(cpu) {
12262 cpup = &phba->sli4_hba.cpu_map[cpu];
12263 cpup->phys_id = LPFC_VECTOR_MAP_EMPTY;
12264 cpup->core_id = LPFC_VECTOR_MAP_EMPTY;
12265 cpup->hdwq = LPFC_VECTOR_MAP_EMPTY;
12266 cpup->eq = LPFC_VECTOR_MAP_EMPTY;
12268 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, cpu);
12269 INIT_LIST_HEAD(&eqi->list);
12275 * lpfc_hba_eq_hdl_array_init - Initialize hba_eq_hdl structure
12276 * @phba: pointer to lpfc hba data structure.
12278 * The routine initializes the hba_eq_hdl array structure
12281 lpfc_hba_eq_hdl_array_init(struct lpfc_hba *phba)
12283 struct lpfc_hba_eq_hdl *eqhdl;
12286 for (i = 0; i < phba->cfg_irq_chann; i++) {
12287 eqhdl = lpfc_get_eq_hdl(i);
12288 eqhdl->irq = LPFC_VECTOR_MAP_EMPTY;
12289 eqhdl->phba = phba;
12294 * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
12295 * @phba: pointer to lpfc hba data structure.
12296 * @vectors: number of msix vectors allocated.
12298 * The routine will figure out the CPU affinity assignment for every
12299 * MSI-X vector allocated for the HBA.
12300 * In addition, the CPU to IO channel mapping will be calculated
12301 * and the phba->sli4_hba.cpu_map array will reflect this.
12304 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
12306 int i, cpu, idx, next_idx, new_cpu, start_cpu, first_cpu;
12307 int max_phys_id, min_phys_id;
12308 int max_core_id, min_core_id;
12309 struct lpfc_vector_map_info *cpup;
12310 struct lpfc_vector_map_info *new_cpup;
12312 struct cpuinfo_x86 *cpuinfo;
12314 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12315 struct lpfc_hdwq_stat *c_stat;
12319 min_phys_id = LPFC_VECTOR_MAP_EMPTY;
12321 min_core_id = LPFC_VECTOR_MAP_EMPTY;
12323 /* Update CPU map with physical id and core id of each CPU */
12324 for_each_present_cpu(cpu) {
12325 cpup = &phba->sli4_hba.cpu_map[cpu];
12327 cpuinfo = &cpu_data(cpu);
12328 cpup->phys_id = cpuinfo->phys_proc_id;
12329 cpup->core_id = cpuinfo->cpu_core_id;
12330 if (lpfc_find_hyper(phba, cpu, cpup->phys_id, cpup->core_id))
12331 cpup->flag |= LPFC_CPU_MAP_HYPER;
12333 /* No distinction between CPUs for other platforms */
12335 cpup->core_id = cpu;
12338 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12339 "3328 CPU %d physid %d coreid %d flag x%x\n",
12340 cpu, cpup->phys_id, cpup->core_id, cpup->flag);
12342 if (cpup->phys_id > max_phys_id)
12343 max_phys_id = cpup->phys_id;
12344 if (cpup->phys_id < min_phys_id)
12345 min_phys_id = cpup->phys_id;
12347 if (cpup->core_id > max_core_id)
12348 max_core_id = cpup->core_id;
12349 if (cpup->core_id < min_core_id)
12350 min_core_id = cpup->core_id;
12353 /* After looking at each irq vector assigned to this pcidev, its
12354 * possible to see that not ALL CPUs have been accounted for.
12355 * Next we will set any unassigned (unaffinitized) cpu map
12356 * entries to a IRQ on the same phys_id.
12358 first_cpu = cpumask_first(cpu_present_mask);
12359 start_cpu = first_cpu;
12361 for_each_present_cpu(cpu) {
12362 cpup = &phba->sli4_hba.cpu_map[cpu];
12364 /* Is this CPU entry unassigned */
12365 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
12366 /* Mark CPU as IRQ not assigned by the kernel */
12367 cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
12369 /* If so, find a new_cpup thats on the the SAME
12370 * phys_id as cpup. start_cpu will start where we
12371 * left off so all unassigned entries don't get assgined
12372 * the IRQ of the first entry.
12374 new_cpu = start_cpu;
12375 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12376 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12377 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
12378 (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY) &&
12379 (new_cpup->phys_id == cpup->phys_id))
12381 new_cpu = cpumask_next(
12382 new_cpu, cpu_present_mask);
12383 if (new_cpu == nr_cpumask_bits)
12384 new_cpu = first_cpu;
12386 /* At this point, we leave the CPU as unassigned */
12389 /* We found a matching phys_id, so copy the IRQ info */
12390 cpup->eq = new_cpup->eq;
12392 /* Bump start_cpu to the next slot to minmize the
12393 * chance of having multiple unassigned CPU entries
12394 * selecting the same IRQ.
12396 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
12397 if (start_cpu == nr_cpumask_bits)
12398 start_cpu = first_cpu;
12400 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12401 "3337 Set Affinity: CPU %d "
12402 "eq %d from peer cpu %d same "
12404 cpu, cpup->eq, new_cpu,
12409 /* Set any unassigned cpu map entries to a IRQ on any phys_id */
12410 start_cpu = first_cpu;
12412 for_each_present_cpu(cpu) {
12413 cpup = &phba->sli4_hba.cpu_map[cpu];
12415 /* Is this entry unassigned */
12416 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
12417 /* Mark it as IRQ not assigned by the kernel */
12418 cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
12420 /* If so, find a new_cpup thats on ANY phys_id
12421 * as the cpup. start_cpu will start where we
12422 * left off so all unassigned entries don't get
12423 * assigned the IRQ of the first entry.
12425 new_cpu = start_cpu;
12426 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12427 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12428 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
12429 (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY))
12431 new_cpu = cpumask_next(
12432 new_cpu, cpu_present_mask);
12433 if (new_cpu == nr_cpumask_bits)
12434 new_cpu = first_cpu;
12436 /* We should never leave an entry unassigned */
12437 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12438 "3339 Set Affinity: CPU %d "
12439 "eq %d UNASSIGNED\n",
12440 cpup->hdwq, cpup->eq);
12443 /* We found an available entry, copy the IRQ info */
12444 cpup->eq = new_cpup->eq;
12446 /* Bump start_cpu to the next slot to minmize the
12447 * chance of having multiple unassigned CPU entries
12448 * selecting the same IRQ.
12450 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
12451 if (start_cpu == nr_cpumask_bits)
12452 start_cpu = first_cpu;
12454 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12455 "3338 Set Affinity: CPU %d "
12456 "eq %d from peer cpu %d (%d/%d)\n",
12457 cpu, cpup->eq, new_cpu,
12458 new_cpup->phys_id, new_cpup->core_id);
12462 /* Assign hdwq indices that are unique across all cpus in the map
12463 * that are also FIRST_CPUs.
12466 for_each_present_cpu(cpu) {
12467 cpup = &phba->sli4_hba.cpu_map[cpu];
12469 /* Only FIRST IRQs get a hdwq index assignment. */
12470 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
12473 /* 1 to 1, the first LPFC_CPU_FIRST_IRQ cpus to a unique hdwq */
12476 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12477 "3333 Set Affinity: CPU %d (phys %d core %d): "
12478 "hdwq %d eq %d flg x%x\n",
12479 cpu, cpup->phys_id, cpup->core_id,
12480 cpup->hdwq, cpup->eq, cpup->flag);
12482 /* Associate a hdwq with each cpu_map entry
12483 * This will be 1 to 1 - hdwq to cpu, unless there are less
12484 * hardware queues then CPUs. For that case we will just round-robin
12485 * the available hardware queues as they get assigned to CPUs.
12486 * The next_idx is the idx from the FIRST_CPU loop above to account
12487 * for irq_chann < hdwq. The idx is used for round-robin assignments
12488 * and needs to start at 0.
12493 for_each_present_cpu(cpu) {
12494 cpup = &phba->sli4_hba.cpu_map[cpu];
12496 /* FIRST cpus are already mapped. */
12497 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
12500 /* If the cfg_irq_chann < cfg_hdw_queue, set the hdwq
12501 * of the unassigned cpus to the next idx so that all
12502 * hdw queues are fully utilized.
12504 if (next_idx < phba->cfg_hdw_queue) {
12505 cpup->hdwq = next_idx;
12510 /* Not a First CPU and all hdw_queues are used. Reuse a
12511 * Hardware Queue for another CPU, so be smart about it
12512 * and pick one that has its IRQ/EQ mapped to the same phys_id
12513 * (CPU package) and core_id.
12515 new_cpu = start_cpu;
12516 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12517 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12518 if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
12519 new_cpup->phys_id == cpup->phys_id &&
12520 new_cpup->core_id == cpup->core_id) {
12523 new_cpu = cpumask_next(new_cpu, cpu_present_mask);
12524 if (new_cpu == nr_cpumask_bits)
12525 new_cpu = first_cpu;
12528 /* If we can't match both phys_id and core_id,
12529 * settle for just a phys_id match.
12531 new_cpu = start_cpu;
12532 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12533 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12534 if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
12535 new_cpup->phys_id == cpup->phys_id)
12538 new_cpu = cpumask_next(new_cpu, cpu_present_mask);
12539 if (new_cpu == nr_cpumask_bits)
12540 new_cpu = first_cpu;
12543 /* Otherwise just round robin on cfg_hdw_queue */
12544 cpup->hdwq = idx % phba->cfg_hdw_queue;
12548 /* We found an available entry, copy the IRQ info */
12549 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
12550 if (start_cpu == nr_cpumask_bits)
12551 start_cpu = first_cpu;
12552 cpup->hdwq = new_cpup->hdwq;
12554 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12555 "3335 Set Affinity: CPU %d (phys %d core %d): "
12556 "hdwq %d eq %d flg x%x\n",
12557 cpu, cpup->phys_id, cpup->core_id,
12558 cpup->hdwq, cpup->eq, cpup->flag);
12562 * Initialize the cpu_map slots for not-present cpus in case
12563 * a cpu is hot-added. Perform a simple hdwq round robin assignment.
12566 for_each_possible_cpu(cpu) {
12567 cpup = &phba->sli4_hba.cpu_map[cpu];
12568 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12569 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, cpu);
12570 c_stat->hdwq_no = cpup->hdwq;
12572 if (cpup->hdwq != LPFC_VECTOR_MAP_EMPTY)
12575 cpup->hdwq = idx++ % phba->cfg_hdw_queue;
12576 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12577 c_stat->hdwq_no = cpup->hdwq;
12579 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12580 "3340 Set Affinity: not present "
12581 "CPU %d hdwq %d\n",
12585 /* The cpu_map array will be used later during initialization
12586 * when EQ / CQ / WQs are allocated and configured.
12592 * lpfc_cpuhp_get_eq
12594 * @phba: pointer to lpfc hba data structure.
12595 * @cpu: cpu going offline
12596 * @eqlist: eq list to append to
12599 lpfc_cpuhp_get_eq(struct lpfc_hba *phba, unsigned int cpu,
12600 struct list_head *eqlist)
12602 const struct cpumask *maskp;
12603 struct lpfc_queue *eq;
12604 struct cpumask *tmp;
12607 tmp = kzalloc(cpumask_size(), GFP_KERNEL);
12611 for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
12612 maskp = pci_irq_get_affinity(phba->pcidev, idx);
12616 * if irq is not affinitized to the cpu going
12617 * then we don't need to poll the eq attached
12620 if (!cpumask_and(tmp, maskp, cpumask_of(cpu)))
12622 /* get the cpus that are online and are affini-
12623 * tized to this irq vector. If the count is
12624 * more than 1 then cpuhp is not going to shut-
12625 * down this vector. Since this cpu has not
12626 * gone offline yet, we need >1.
12628 cpumask_and(tmp, maskp, cpu_online_mask);
12629 if (cpumask_weight(tmp) > 1)
12632 /* Now that we have an irq to shutdown, get the eq
12633 * mapped to this irq. Note: multiple hdwq's in
12634 * the software can share an eq, but eventually
12635 * only eq will be mapped to this vector
12637 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
12638 list_add(&eq->_poll_list, eqlist);
12644 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba)
12646 if (phba->sli_rev != LPFC_SLI_REV4)
12649 cpuhp_state_remove_instance_nocalls(lpfc_cpuhp_state,
12652 * unregistering the instance doesn't stop the polling
12653 * timer. Wait for the poll timer to retire.
12656 del_timer_sync(&phba->cpuhp_poll_timer);
12659 static void lpfc_cpuhp_remove(struct lpfc_hba *phba)
12661 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
12664 __lpfc_cpuhp_remove(phba);
12667 static void lpfc_cpuhp_add(struct lpfc_hba *phba)
12669 if (phba->sli_rev != LPFC_SLI_REV4)
12674 if (!list_empty(&phba->poll_list))
12675 mod_timer(&phba->cpuhp_poll_timer,
12676 jiffies + msecs_to_jiffies(LPFC_POLL_HB));
12680 cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state,
12684 static int __lpfc_cpuhp_checks(struct lpfc_hba *phba, int *retval)
12686 if (phba->pport->load_flag & FC_UNLOADING) {
12691 if (phba->sli_rev != LPFC_SLI_REV4) {
12696 /* proceed with the hotplug */
12701 * lpfc_irq_set_aff - set IRQ affinity
12702 * @eqhdl: EQ handle
12703 * @cpu: cpu to set affinity
12707 lpfc_irq_set_aff(struct lpfc_hba_eq_hdl *eqhdl, unsigned int cpu)
12709 cpumask_clear(&eqhdl->aff_mask);
12710 cpumask_set_cpu(cpu, &eqhdl->aff_mask);
12711 irq_set_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
12712 irq_set_affinity_hint(eqhdl->irq, &eqhdl->aff_mask);
12716 * lpfc_irq_clear_aff - clear IRQ affinity
12717 * @eqhdl: EQ handle
12721 lpfc_irq_clear_aff(struct lpfc_hba_eq_hdl *eqhdl)
12723 cpumask_clear(&eqhdl->aff_mask);
12724 irq_clear_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
12728 * lpfc_irq_rebalance - rebalances IRQ affinity according to cpuhp event
12729 * @phba: pointer to HBA context object.
12730 * @cpu: cpu going offline/online
12731 * @offline: true, cpu is going offline. false, cpu is coming online.
12733 * If cpu is going offline, we'll try our best effort to find the next
12734 * online cpu on the phba's original_mask and migrate all offlining IRQ
12737 * If cpu is coming online, reaffinitize the IRQ back to the onlining cpu.
12739 * Note: Call only if NUMA or NHT mode is enabled, otherwise rely on
12740 * PCI_IRQ_AFFINITY to auto-manage IRQ affinity.
12744 lpfc_irq_rebalance(struct lpfc_hba *phba, unsigned int cpu, bool offline)
12746 struct lpfc_vector_map_info *cpup;
12747 struct cpumask *aff_mask;
12748 unsigned int cpu_select, cpu_next, idx;
12749 const struct cpumask *orig_mask;
12751 if (phba->irq_chann_mode == NORMAL_MODE)
12754 orig_mask = &phba->sli4_hba.irq_aff_mask;
12756 if (!cpumask_test_cpu(cpu, orig_mask))
12759 cpup = &phba->sli4_hba.cpu_map[cpu];
12761 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
12765 /* Find next online CPU on original mask */
12766 cpu_next = cpumask_next_wrap(cpu, orig_mask, cpu, true);
12767 cpu_select = lpfc_next_online_cpu(orig_mask, cpu_next);
12769 /* Found a valid CPU */
12770 if ((cpu_select < nr_cpu_ids) && (cpu_select != cpu)) {
12771 /* Go through each eqhdl and ensure offlining
12772 * cpu aff_mask is migrated
12774 for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
12775 aff_mask = lpfc_get_aff_mask(idx);
12777 /* Migrate affinity */
12778 if (cpumask_test_cpu(cpu, aff_mask))
12779 lpfc_irq_set_aff(lpfc_get_eq_hdl(idx),
12783 /* Rely on irqbalance if no online CPUs left on NUMA */
12784 for (idx = 0; idx < phba->cfg_irq_chann; idx++)
12785 lpfc_irq_clear_aff(lpfc_get_eq_hdl(idx));
12788 /* Migrate affinity back to this CPU */
12789 lpfc_irq_set_aff(lpfc_get_eq_hdl(cpup->eq), cpu);
12793 static int lpfc_cpu_offline(unsigned int cpu, struct hlist_node *node)
12795 struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
12796 struct lpfc_queue *eq, *next;
12801 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
12805 if (__lpfc_cpuhp_checks(phba, &retval))
12808 lpfc_irq_rebalance(phba, cpu, true);
12810 retval = lpfc_cpuhp_get_eq(phba, cpu, &eqlist);
12814 /* start polling on these eq's */
12815 list_for_each_entry_safe(eq, next, &eqlist, _poll_list) {
12816 list_del_init(&eq->_poll_list);
12817 lpfc_sli4_start_polling(eq);
12823 static int lpfc_cpu_online(unsigned int cpu, struct hlist_node *node)
12825 struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
12826 struct lpfc_queue *eq, *next;
12831 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
12835 if (__lpfc_cpuhp_checks(phba, &retval))
12838 lpfc_irq_rebalance(phba, cpu, false);
12840 list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list) {
12841 n = lpfc_find_cpu_handle(phba, eq->hdwq, LPFC_FIND_BY_HDWQ);
12843 lpfc_sli4_stop_polling(eq);
12850 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
12851 * @phba: pointer to lpfc hba data structure.
12853 * This routine is invoked to enable the MSI-X interrupt vectors to device
12854 * with SLI-4 interface spec. It also allocates MSI-X vectors and maps them
12855 * to cpus on the system.
12857 * When cfg_irq_numa is enabled, the adapter will only allocate vectors for
12858 * the number of cpus on the same numa node as this adapter. The vectors are
12859 * allocated without requesting OS affinity mapping. A vector will be
12860 * allocated and assigned to each online and offline cpu. If the cpu is
12861 * online, then affinity will be set to that cpu. If the cpu is offline, then
12862 * affinity will be set to the nearest peer cpu within the numa node that is
12863 * online. If there are no online cpus within the numa node, affinity is not
12864 * assigned and the OS may do as it pleases. Note: cpu vector affinity mapping
12865 * is consistent with the way cpu online/offline is handled when cfg_irq_numa is
12868 * If numa mode is not enabled and there is more than 1 vector allocated, then
12869 * the driver relies on the managed irq interface where the OS assigns vector to
12870 * cpu affinity. The driver will then use that affinity mapping to setup its
12871 * cpu mapping table.
12875 * other values - error
12878 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
12880 int vectors, rc, index;
12882 const struct cpumask *aff_mask = NULL;
12883 unsigned int cpu = 0, cpu_cnt = 0, cpu_select = nr_cpu_ids;
12884 struct lpfc_vector_map_info *cpup;
12885 struct lpfc_hba_eq_hdl *eqhdl;
12886 const struct cpumask *maskp;
12887 unsigned int flags = PCI_IRQ_MSIX;
12889 /* Set up MSI-X multi-message vectors */
12890 vectors = phba->cfg_irq_chann;
12892 if (phba->irq_chann_mode != NORMAL_MODE)
12893 aff_mask = &phba->sli4_hba.irq_aff_mask;
12896 cpu_cnt = cpumask_weight(aff_mask);
12897 vectors = min(phba->cfg_irq_chann, cpu_cnt);
12899 /* cpu: iterates over aff_mask including offline or online
12900 * cpu_select: iterates over online aff_mask to set affinity
12902 cpu = cpumask_first(aff_mask);
12903 cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
12905 flags |= PCI_IRQ_AFFINITY;
12908 rc = pci_alloc_irq_vectors(phba->pcidev, 1, vectors, flags);
12910 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12911 "0484 PCI enable MSI-X failed (%d)\n", rc);
12916 /* Assign MSI-X vectors to interrupt handlers */
12917 for (index = 0; index < vectors; index++) {
12918 eqhdl = lpfc_get_eq_hdl(index);
12919 name = eqhdl->handler_name;
12920 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
12921 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
12922 LPFC_DRIVER_HANDLER_NAME"%d", index);
12924 eqhdl->idx = index;
12925 rc = request_irq(pci_irq_vector(phba->pcidev, index),
12926 &lpfc_sli4_hba_intr_handler, 0,
12929 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12930 "0486 MSI-X fast-path (%d) "
12931 "request_irq failed (%d)\n", index, rc);
12935 eqhdl->irq = pci_irq_vector(phba->pcidev, index);
12938 /* If found a neighboring online cpu, set affinity */
12939 if (cpu_select < nr_cpu_ids)
12940 lpfc_irq_set_aff(eqhdl, cpu_select);
12942 /* Assign EQ to cpu_map */
12943 lpfc_assign_eq_map_info(phba, index,
12944 LPFC_CPU_FIRST_IRQ,
12947 /* Iterate to next offline or online cpu in aff_mask */
12948 cpu = cpumask_next(cpu, aff_mask);
12950 /* Find next online cpu in aff_mask to set affinity */
12951 cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
12952 } else if (vectors == 1) {
12953 cpu = cpumask_first(cpu_present_mask);
12954 lpfc_assign_eq_map_info(phba, index, LPFC_CPU_FIRST_IRQ,
12957 maskp = pci_irq_get_affinity(phba->pcidev, index);
12959 /* Loop through all CPUs associated with vector index */
12960 for_each_cpu_and(cpu, maskp, cpu_present_mask) {
12961 cpup = &phba->sli4_hba.cpu_map[cpu];
12963 /* If this is the first CPU thats assigned to
12964 * this vector, set LPFC_CPU_FIRST_IRQ.
12966 * With certain platforms its possible that irq
12967 * vectors are affinitized to all the cpu's.
12968 * This can result in each cpu_map.eq to be set
12969 * to the last vector, resulting in overwrite
12970 * of all the previous cpu_map.eq. Ensure that
12971 * each vector receives a place in cpu_map.
12972 * Later call to lpfc_cpu_affinity_check will
12973 * ensure we are nicely balanced out.
12975 if (cpup->eq != LPFC_VECTOR_MAP_EMPTY)
12977 lpfc_assign_eq_map_info(phba, index,
12978 LPFC_CPU_FIRST_IRQ,
12985 if (vectors != phba->cfg_irq_chann) {
12986 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12987 "3238 Reducing IO channels to match number of "
12988 "MSI-X vectors, requested %d got %d\n",
12989 phba->cfg_irq_chann, vectors);
12990 if (phba->cfg_irq_chann > vectors)
12991 phba->cfg_irq_chann = vectors;
12997 /* free the irq already requested */
12998 for (--index; index >= 0; index--) {
12999 eqhdl = lpfc_get_eq_hdl(index);
13000 lpfc_irq_clear_aff(eqhdl);
13001 irq_set_affinity_hint(eqhdl->irq, NULL);
13002 free_irq(eqhdl->irq, eqhdl);
13005 /* Unconfigure MSI-X capability structure */
13006 pci_free_irq_vectors(phba->pcidev);
13013 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
13014 * @phba: pointer to lpfc hba data structure.
13016 * This routine is invoked to enable the MSI interrupt mode to device with
13017 * SLI-4 interface spec. The kernel function pci_alloc_irq_vectors() is
13018 * called to enable the MSI vector. The device driver is responsible for
13019 * calling the request_irq() to register MSI vector with a interrupt the
13020 * handler, which is done in this function.
13024 * other values - error
13027 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
13031 struct lpfc_hba_eq_hdl *eqhdl;
13033 rc = pci_alloc_irq_vectors(phba->pcidev, 1, 1,
13034 PCI_IRQ_MSI | PCI_IRQ_AFFINITY);
13036 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13037 "0487 PCI enable MSI mode success.\n");
13039 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13040 "0488 PCI enable MSI mode failed (%d)\n", rc);
13041 return rc ? rc : -1;
13044 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
13045 0, LPFC_DRIVER_NAME, phba);
13047 pci_free_irq_vectors(phba->pcidev);
13048 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13049 "0490 MSI request_irq failed (%d)\n", rc);
13053 eqhdl = lpfc_get_eq_hdl(0);
13054 eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
13056 cpu = cpumask_first(cpu_present_mask);
13057 lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ, cpu);
13059 for (index = 0; index < phba->cfg_irq_chann; index++) {
13060 eqhdl = lpfc_get_eq_hdl(index);
13061 eqhdl->idx = index;
13068 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
13069 * @phba: pointer to lpfc hba data structure.
13070 * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
13072 * This routine is invoked to enable device interrupt and associate driver's
13073 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
13074 * interface spec. Depends on the interrupt mode configured to the driver,
13075 * the driver will try to fallback from the configured interrupt mode to an
13076 * interrupt mode which is supported by the platform, kernel, and device in
13078 * MSI-X -> MSI -> IRQ.
13082 * other values - error
13085 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
13087 uint32_t intr_mode = LPFC_INTR_ERROR;
13090 if (cfg_mode == 2) {
13091 /* Preparation before conf_msi mbox cmd */
13094 /* Now, try to enable MSI-X interrupt mode */
13095 retval = lpfc_sli4_enable_msix(phba);
13097 /* Indicate initialization to MSI-X mode */
13098 phba->intr_type = MSIX;
13104 /* Fallback to MSI if MSI-X initialization failed */
13105 if (cfg_mode >= 1 && phba->intr_type == NONE) {
13106 retval = lpfc_sli4_enable_msi(phba);
13108 /* Indicate initialization to MSI mode */
13109 phba->intr_type = MSI;
13114 /* Fallback to INTx if both MSI-X/MSI initalization failed */
13115 if (phba->intr_type == NONE) {
13116 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
13117 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
13119 struct lpfc_hba_eq_hdl *eqhdl;
13122 /* Indicate initialization to INTx mode */
13123 phba->intr_type = INTx;
13126 eqhdl = lpfc_get_eq_hdl(0);
13127 eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
13129 cpu = cpumask_first(cpu_present_mask);
13130 lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ,
13132 for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
13133 eqhdl = lpfc_get_eq_hdl(idx);
13142 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
13143 * @phba: pointer to lpfc hba data structure.
13145 * This routine is invoked to disable device interrupt and disassociate
13146 * the driver's interrupt handler(s) from interrupt vector(s) to device
13147 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
13148 * will release the interrupt vector(s) for the message signaled interrupt.
13151 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
13153 /* Disable the currently initialized interrupt mode */
13154 if (phba->intr_type == MSIX) {
13156 struct lpfc_hba_eq_hdl *eqhdl;
13158 /* Free up MSI-X multi-message vectors */
13159 for (index = 0; index < phba->cfg_irq_chann; index++) {
13160 eqhdl = lpfc_get_eq_hdl(index);
13161 lpfc_irq_clear_aff(eqhdl);
13162 irq_set_affinity_hint(eqhdl->irq, NULL);
13163 free_irq(eqhdl->irq, eqhdl);
13166 free_irq(phba->pcidev->irq, phba);
13169 pci_free_irq_vectors(phba->pcidev);
13171 /* Reset interrupt management states */
13172 phba->intr_type = NONE;
13173 phba->sli.slistat.sli_intr = 0;
13177 * lpfc_unset_hba - Unset SLI3 hba device initialization
13178 * @phba: pointer to lpfc hba data structure.
13180 * This routine is invoked to unset the HBA device initialization steps to
13181 * a device with SLI-3 interface spec.
13184 lpfc_unset_hba(struct lpfc_hba *phba)
13186 struct lpfc_vport *vport = phba->pport;
13187 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
13189 spin_lock_irq(shost->host_lock);
13190 vport->load_flag |= FC_UNLOADING;
13191 spin_unlock_irq(shost->host_lock);
13193 kfree(phba->vpi_bmask);
13194 kfree(phba->vpi_ids);
13196 lpfc_stop_hba_timers(phba);
13198 phba->pport->work_port_events = 0;
13200 lpfc_sli_hba_down(phba);
13202 lpfc_sli_brdrestart(phba);
13204 lpfc_sli_disable_intr(phba);
13210 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
13211 * @phba: Pointer to HBA context object.
13213 * This function is called in the SLI4 code path to wait for completion
13214 * of device's XRIs exchange busy. It will check the XRI exchange busy
13215 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
13216 * that, it will check the XRI exchange busy on outstanding FCP and ELS
13217 * I/Os every 30 seconds, log error message, and wait forever. Only when
13218 * all XRI exchange busy complete, the driver unload shall proceed with
13219 * invoking the function reset ioctl mailbox command to the CNA and the
13220 * the rest of the driver unload resource release.
13223 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
13225 struct lpfc_sli4_hdw_queue *qp;
13228 int io_xri_cmpl = 1;
13229 int nvmet_xri_cmpl = 1;
13230 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
13232 /* Driver just aborted IOs during the hba_unset process. Pause
13233 * here to give the HBA time to complete the IO and get entries
13234 * into the abts lists.
13236 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
13238 /* Wait for NVME pending IO to flush back to transport. */
13239 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
13240 lpfc_nvme_wait_for_io_drain(phba);
13243 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
13244 qp = &phba->sli4_hba.hdwq[idx];
13245 io_xri_cmpl = list_empty(&qp->lpfc_abts_io_buf_list);
13246 if (!io_xri_cmpl) /* if list is NOT empty */
13252 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13254 list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
13257 while (!els_xri_cmpl || !io_xri_cmpl || !nvmet_xri_cmpl) {
13258 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
13259 if (!nvmet_xri_cmpl)
13260 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13261 "6424 NVMET XRI exchange busy "
13262 "wait time: %d seconds.\n",
13265 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13266 "6100 IO XRI exchange busy "
13267 "wait time: %d seconds.\n",
13270 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13271 "2878 ELS XRI exchange busy "
13272 "wait time: %d seconds.\n",
13274 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
13275 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
13277 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
13278 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
13282 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
13283 qp = &phba->sli4_hba.hdwq[idx];
13284 io_xri_cmpl = list_empty(
13285 &qp->lpfc_abts_io_buf_list);
13286 if (!io_xri_cmpl) /* if list is NOT empty */
13292 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13293 nvmet_xri_cmpl = list_empty(
13294 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
13297 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
13303 * lpfc_sli4_hba_unset - Unset the fcoe hba
13304 * @phba: Pointer to HBA context object.
13306 * This function is called in the SLI4 code path to reset the HBA's FCoE
13307 * function. The caller is not required to hold any lock. This routine
13308 * issues PCI function reset mailbox command to reset the FCoE function.
13309 * At the end of the function, it calls lpfc_hba_down_post function to
13310 * free any pending commands.
13313 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
13316 LPFC_MBOXQ_t *mboxq;
13317 struct pci_dev *pdev = phba->pcidev;
13319 lpfc_stop_hba_timers(phba);
13320 hrtimer_cancel(&phba->cmf_timer);
13323 phba->sli4_hba.intr_enable = 0;
13326 * Gracefully wait out the potential current outstanding asynchronous
13330 /* First, block any pending async mailbox command from posted */
13331 spin_lock_irq(&phba->hbalock);
13332 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
13333 spin_unlock_irq(&phba->hbalock);
13334 /* Now, trying to wait it out if we can */
13335 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
13337 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
13340 /* Forcefully release the outstanding mailbox command if timed out */
13341 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
13342 spin_lock_irq(&phba->hbalock);
13343 mboxq = phba->sli.mbox_active;
13344 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
13345 __lpfc_mbox_cmpl_put(phba, mboxq);
13346 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
13347 phba->sli.mbox_active = NULL;
13348 spin_unlock_irq(&phba->hbalock);
13351 /* Abort all iocbs associated with the hba */
13352 lpfc_sli_hba_iocb_abort(phba);
13354 /* Wait for completion of device XRI exchange busy */
13355 lpfc_sli4_xri_exchange_busy_wait(phba);
13357 /* per-phba callback de-registration for hotplug event */
13359 lpfc_cpuhp_remove(phba);
13361 /* Disable PCI subsystem interrupt */
13362 lpfc_sli4_disable_intr(phba);
13364 /* Disable SR-IOV if enabled */
13365 if (phba->cfg_sriov_nr_virtfn)
13366 pci_disable_sriov(pdev);
13368 /* Stop kthread signal shall trigger work_done one more time */
13369 kthread_stop(phba->worker_thread);
13371 /* Disable FW logging to host memory */
13372 lpfc_ras_stop_fwlog(phba);
13374 /* Unset the queues shared with the hardware then release all
13375 * allocated resources.
13377 lpfc_sli4_queue_unset(phba);
13378 lpfc_sli4_queue_destroy(phba);
13380 /* Reset SLI4 HBA FCoE function */
13381 lpfc_pci_function_reset(phba);
13383 /* Free RAS DMA memory */
13384 if (phba->ras_fwlog.ras_enabled)
13385 lpfc_sli4_ras_dma_free(phba);
13387 /* Stop the SLI4 device port */
13389 phba->pport->work_port_events = 0;
13393 lpfc_cgn_crc32(uint32_t crc, u8 byte)
13398 for (bit = 0; bit < 8; bit++) {
13399 msb = (crc >> 31) & 1;
13402 if (msb ^ (byte & 1)) {
13403 crc ^= LPFC_CGN_CRC32_MAGIC_NUMBER;
13412 lpfc_cgn_reverse_bits(uint32_t wd)
13414 uint32_t result = 0;
13417 for (i = 0; i < 32; i++) {
13419 result |= (1 & (wd >> i));
13425 * The routine corresponds with the algorithm the HBA firmware
13426 * uses to validate the data integrity.
13429 lpfc_cgn_calc_crc32(void *ptr, uint32_t byteLen, uint32_t crc)
13433 uint8_t *data = (uint8_t *)ptr;
13435 for (i = 0; i < byteLen; ++i)
13436 crc = lpfc_cgn_crc32(crc, data[i]);
13438 result = ~lpfc_cgn_reverse_bits(crc);
13443 lpfc_init_congestion_buf(struct lpfc_hba *phba)
13445 struct lpfc_cgn_info *cp;
13446 struct timespec64 cmpl_time;
13451 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
13452 "6235 INIT Congestion Buffer %p\n", phba->cgn_i);
13456 cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
13458 atomic_set(&phba->cgn_fabric_warn_cnt, 0);
13459 atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
13460 atomic_set(&phba->cgn_sync_alarm_cnt, 0);
13461 atomic_set(&phba->cgn_sync_warn_cnt, 0);
13463 atomic_set(&phba->cgn_driver_evt_cnt, 0);
13464 atomic_set(&phba->cgn_latency_evt_cnt, 0);
13465 atomic64_set(&phba->cgn_latency_evt, 0);
13466 phba->cgn_evt_minute = 0;
13467 phba->hba_flag &= ~HBA_CGN_DAY_WRAP;
13469 memset(cp, 0xff, LPFC_CGN_DATA_SIZE);
13470 cp->cgn_info_size = cpu_to_le16(LPFC_CGN_INFO_SZ);
13471 cp->cgn_info_version = LPFC_CGN_INFO_V3;
13473 /* cgn parameters */
13474 cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
13475 cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
13476 cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
13477 cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
13479 ktime_get_real_ts64(&cmpl_time);
13480 time64_to_tm(cmpl_time.tv_sec, 0, &broken);
13482 cp->cgn_info_month = broken.tm_mon + 1;
13483 cp->cgn_info_day = broken.tm_mday;
13484 cp->cgn_info_year = broken.tm_year - 100; /* relative to 2000 */
13485 cp->cgn_info_hour = broken.tm_hour;
13486 cp->cgn_info_minute = broken.tm_min;
13487 cp->cgn_info_second = broken.tm_sec;
13489 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
13490 "2643 CGNInfo Init: Start Time "
13491 "%d/%d/%d %d:%d:%d\n",
13492 cp->cgn_info_day, cp->cgn_info_month,
13493 cp->cgn_info_year, cp->cgn_info_hour,
13494 cp->cgn_info_minute, cp->cgn_info_second);
13496 /* Fill in default LUN qdepth */
13498 size = (uint16_t)(phba->pport->cfg_lun_queue_depth);
13499 cp->cgn_lunq = cpu_to_le16(size);
13502 /* last used Index initialized to 0xff already */
13504 cp->cgn_warn_freq = cpu_to_le16(LPFC_FPIN_INIT_FREQ);
13505 cp->cgn_alarm_freq = cpu_to_le16(LPFC_FPIN_INIT_FREQ);
13506 crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ, LPFC_CGN_CRC32_SEED);
13507 cp->cgn_info_crc = cpu_to_le32(crc);
13509 phba->cgn_evt_timestamp = jiffies +
13510 msecs_to_jiffies(LPFC_CGN_TIMER_TO_MIN);
13514 lpfc_init_congestion_stat(struct lpfc_hba *phba)
13516 struct lpfc_cgn_info *cp;
13517 struct timespec64 cmpl_time;
13521 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
13522 "6236 INIT Congestion Stat %p\n", phba->cgn_i);
13527 cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
13528 memset(&cp->cgn_stat_npm, 0, LPFC_CGN_STAT_SIZE);
13530 ktime_get_real_ts64(&cmpl_time);
13531 time64_to_tm(cmpl_time.tv_sec, 0, &broken);
13533 cp->cgn_stat_month = broken.tm_mon + 1;
13534 cp->cgn_stat_day = broken.tm_mday;
13535 cp->cgn_stat_year = broken.tm_year - 100; /* relative to 2000 */
13536 cp->cgn_stat_hour = broken.tm_hour;
13537 cp->cgn_stat_minute = broken.tm_min;
13539 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
13540 "2647 CGNstat Init: Start Time "
13541 "%d/%d/%d %d:%d\n",
13542 cp->cgn_stat_day, cp->cgn_stat_month,
13543 cp->cgn_stat_year, cp->cgn_stat_hour,
13544 cp->cgn_stat_minute);
13546 crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ, LPFC_CGN_CRC32_SEED);
13547 cp->cgn_info_crc = cpu_to_le32(crc);
13551 * __lpfc_reg_congestion_buf - register congestion info buffer with HBA
13552 * @phba: Pointer to hba context object.
13553 * @reg: flag to determine register or unregister.
13556 __lpfc_reg_congestion_buf(struct lpfc_hba *phba, int reg)
13558 struct lpfc_mbx_reg_congestion_buf *reg_congestion_buf;
13559 union lpfc_sli4_cfg_shdr *shdr;
13560 uint32_t shdr_status, shdr_add_status;
13561 LPFC_MBOXQ_t *mboxq;
13567 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13569 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
13570 "2641 REG_CONGESTION_BUF mbox allocation fail: "
13571 "HBA state x%x reg %d\n",
13572 phba->pport->port_state, reg);
13576 length = (sizeof(struct lpfc_mbx_reg_congestion_buf) -
13577 sizeof(struct lpfc_sli4_cfg_mhdr));
13578 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
13579 LPFC_MBOX_OPCODE_REG_CONGESTION_BUF, length,
13580 LPFC_SLI4_MBX_EMBED);
13581 reg_congestion_buf = &mboxq->u.mqe.un.reg_congestion_buf;
13582 bf_set(lpfc_mbx_reg_cgn_buf_type, reg_congestion_buf, 1);
13584 bf_set(lpfc_mbx_reg_cgn_buf_cnt, reg_congestion_buf, 1);
13586 bf_set(lpfc_mbx_reg_cgn_buf_cnt, reg_congestion_buf, 0);
13587 reg_congestion_buf->length = sizeof(struct lpfc_cgn_info);
13588 reg_congestion_buf->addr_lo =
13589 putPaddrLow(phba->cgn_i->phys);
13590 reg_congestion_buf->addr_hi =
13591 putPaddrHigh(phba->cgn_i->phys);
13593 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
13594 shdr = (union lpfc_sli4_cfg_shdr *)
13595 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
13596 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13597 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
13599 mempool_free(mboxq, phba->mbox_mem_pool);
13600 if (shdr_status || shdr_add_status || rc) {
13601 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13602 "2642 REG_CONGESTION_BUF mailbox "
13603 "failed with status x%x add_status x%x,"
13604 " mbx status x%x reg %d\n",
13605 shdr_status, shdr_add_status, rc, reg);
13612 lpfc_unreg_congestion_buf(struct lpfc_hba *phba)
13614 lpfc_cmf_stop(phba);
13615 return __lpfc_reg_congestion_buf(phba, 0);
13619 lpfc_reg_congestion_buf(struct lpfc_hba *phba)
13621 return __lpfc_reg_congestion_buf(phba, 1);
13625 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
13626 * @phba: Pointer to HBA context object.
13627 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
13629 * This function is called in the SLI4 code path to read the port's
13630 * sli4 capabilities.
13632 * This function may be be called from any context that can block-wait
13633 * for the completion. The expectation is that this routine is called
13634 * typically from probe_one or from the online routine.
13637 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
13640 struct lpfc_mqe *mqe = &mboxq->u.mqe;
13641 struct lpfc_pc_sli4_params *sli4_params;
13644 bool exp_wqcq_pages = true;
13645 struct lpfc_sli4_parameters *mbx_sli4_parameters;
13648 * By default, the driver assumes the SLI4 port requires RPI
13649 * header postings. The SLI4_PARAM response will correct this
13652 phba->sli4_hba.rpi_hdrs_in_use = 1;
13654 /* Read the port's SLI4 Config Parameters */
13655 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
13656 sizeof(struct lpfc_sli4_cfg_mhdr));
13657 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
13658 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
13659 length, LPFC_SLI4_MBX_EMBED);
13660 if (!phba->sli4_hba.intr_enable)
13661 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
13663 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
13664 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
13668 sli4_params = &phba->sli4_hba.pc_sli4_params;
13669 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
13670 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
13671 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
13672 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
13673 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
13674 mbx_sli4_parameters);
13675 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
13676 mbx_sli4_parameters);
13677 if (bf_get(cfg_phwq, mbx_sli4_parameters))
13678 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
13680 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
13681 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
13682 sli4_params->loopbk_scope = bf_get(cfg_loopbk_scope,
13683 mbx_sli4_parameters);
13684 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
13685 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
13686 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
13687 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
13688 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
13689 sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
13690 sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
13691 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
13692 sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
13693 sli4_params->pls = bf_get(cfg_pvl, mbx_sli4_parameters);
13694 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
13695 mbx_sli4_parameters);
13696 sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
13697 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
13698 mbx_sli4_parameters);
13699 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
13700 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
13702 /* Check for Extended Pre-Registered SGL support */
13703 phba->cfg_xpsgl = bf_get(cfg_xpsgl, mbx_sli4_parameters);
13705 /* Check for firmware nvme support */
13706 rc = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
13707 bf_get(cfg_xib, mbx_sli4_parameters));
13710 /* Save this to indicate the Firmware supports NVME */
13711 sli4_params->nvme = 1;
13713 /* Firmware NVME support, check driver FC4 NVME support */
13714 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) {
13715 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
13716 "6133 Disabling NVME support: "
13717 "FC4 type not supported: x%x\n",
13718 phba->cfg_enable_fc4_type);
13722 /* No firmware NVME support, check driver FC4 NVME support */
13723 sli4_params->nvme = 0;
13724 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13725 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
13726 "6101 Disabling NVME support: Not "
13727 "supported by firmware (%d %d) x%x\n",
13728 bf_get(cfg_nvme, mbx_sli4_parameters),
13729 bf_get(cfg_xib, mbx_sli4_parameters),
13730 phba->cfg_enable_fc4_type);
13732 phba->nvmet_support = 0;
13733 phba->cfg_nvmet_mrq = 0;
13734 phba->cfg_nvme_seg_cnt = 0;
13736 /* If no FC4 type support, move to just SCSI support */
13737 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
13739 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
13743 /* If the NVME FC4 type is enabled, scale the sg_seg_cnt to
13744 * accommodate 512K and 1M IOs in a single nvme buf.
13746 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
13747 phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
13749 /* Enable embedded Payload BDE if support is indicated */
13750 if (bf_get(cfg_pbde, mbx_sli4_parameters))
13751 phba->cfg_enable_pbde = 1;
13753 phba->cfg_enable_pbde = 0;
13756 * To support Suppress Response feature we must satisfy 3 conditions.
13757 * lpfc_suppress_rsp module parameter must be set (default).
13758 * In SLI4-Parameters Descriptor:
13759 * Extended Inline Buffers (XIB) must be supported.
13760 * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
13761 * (double negative).
13763 if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
13764 !(bf_get(cfg_nosr, mbx_sli4_parameters)))
13765 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
13767 phba->cfg_suppress_rsp = 0;
13769 if (bf_get(cfg_eqdr, mbx_sli4_parameters))
13770 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
13772 /* Make sure that sge_supp_len can be handled by the driver */
13773 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
13774 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
13777 * Check whether the adapter supports an embedded copy of the
13778 * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
13779 * to use this option, 128-byte WQEs must be used.
13781 if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
13782 phba->fcp_embed_io = 1;
13784 phba->fcp_embed_io = 0;
13786 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
13787 "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
13788 bf_get(cfg_xib, mbx_sli4_parameters),
13789 phba->cfg_enable_pbde,
13790 phba->fcp_embed_io, sli4_params->nvme,
13791 phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
13793 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
13794 LPFC_SLI_INTF_IF_TYPE_2) &&
13795 (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
13796 LPFC_SLI_INTF_FAMILY_LNCR_A0))
13797 exp_wqcq_pages = false;
13799 if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
13800 (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
13802 (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
13803 phba->enab_exp_wqcq_pages = 1;
13805 phba->enab_exp_wqcq_pages = 0;
13807 * Check if the SLI port supports MDS Diagnostics
13809 if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
13810 phba->mds_diags_support = 1;
13812 phba->mds_diags_support = 0;
13815 * Check if the SLI port supports NSLER
13817 if (bf_get(cfg_nsler, mbx_sli4_parameters))
13826 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
13827 * @pdev: pointer to PCI device
13828 * @pid: pointer to PCI device identifier
13830 * This routine is to be called to attach a device with SLI-3 interface spec
13831 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
13832 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
13833 * information of the device and driver to see if the driver state that it can
13834 * support this kind of device. If the match is successful, the driver core
13835 * invokes this routine. If this routine determines it can claim the HBA, it
13836 * does all the initialization that it needs to do to handle the HBA properly.
13839 * 0 - driver can claim the device
13840 * negative value - driver can not claim the device
13843 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
13845 struct lpfc_hba *phba;
13846 struct lpfc_vport *vport = NULL;
13847 struct Scsi_Host *shost = NULL;
13849 uint32_t cfg_mode, intr_mode;
13851 /* Allocate memory for HBA structure */
13852 phba = lpfc_hba_alloc(pdev);
13856 /* Perform generic PCI device enabling operation */
13857 error = lpfc_enable_pci_dev(phba);
13859 goto out_free_phba;
13861 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
13862 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
13864 goto out_disable_pci_dev;
13866 /* Set up SLI-3 specific device PCI memory space */
13867 error = lpfc_sli_pci_mem_setup(phba);
13869 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13870 "1402 Failed to set up pci memory space.\n");
13871 goto out_disable_pci_dev;
13874 /* Set up SLI-3 specific device driver resources */
13875 error = lpfc_sli_driver_resource_setup(phba);
13877 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13878 "1404 Failed to set up driver resource.\n");
13879 goto out_unset_pci_mem_s3;
13882 /* Initialize and populate the iocb list per host */
13884 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
13886 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13887 "1405 Failed to initialize iocb list.\n");
13888 goto out_unset_driver_resource_s3;
13891 /* Set up common device driver resources */
13892 error = lpfc_setup_driver_resource_phase2(phba);
13894 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13895 "1406 Failed to set up driver resource.\n");
13896 goto out_free_iocb_list;
13899 /* Get the default values for Model Name and Description */
13900 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
13902 /* Create SCSI host to the physical port */
13903 error = lpfc_create_shost(phba);
13905 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13906 "1407 Failed to create scsi host.\n");
13907 goto out_unset_driver_resource;
13910 /* Configure sysfs attributes */
13911 vport = phba->pport;
13912 error = lpfc_alloc_sysfs_attr(vport);
13914 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13915 "1476 Failed to allocate sysfs attr\n");
13916 goto out_destroy_shost;
13919 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
13920 /* Now, trying to enable interrupt and bring up the device */
13921 cfg_mode = phba->cfg_use_msi;
13923 /* Put device to a known state before enabling interrupt */
13924 lpfc_stop_port(phba);
13925 /* Configure and enable interrupt */
13926 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
13927 if (intr_mode == LPFC_INTR_ERROR) {
13928 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13929 "0431 Failed to enable interrupt.\n");
13931 goto out_free_sysfs_attr;
13933 /* SLI-3 HBA setup */
13934 if (lpfc_sli_hba_setup(phba)) {
13935 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13936 "1477 Failed to set up hba\n");
13938 goto out_remove_device;
13941 /* Wait 50ms for the interrupts of previous mailbox commands */
13943 /* Check active interrupts on message signaled interrupts */
13944 if (intr_mode == 0 ||
13945 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
13946 /* Log the current active interrupt mode */
13947 phba->intr_mode = intr_mode;
13948 lpfc_log_intr_mode(phba, intr_mode);
13951 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13952 "0447 Configure interrupt mode (%d) "
13953 "failed active interrupt test.\n",
13955 /* Disable the current interrupt mode */
13956 lpfc_sli_disable_intr(phba);
13957 /* Try next level of interrupt mode */
13958 cfg_mode = --intr_mode;
13962 /* Perform post initialization setup */
13963 lpfc_post_init_setup(phba);
13965 /* Check if there are static vports to be created. */
13966 lpfc_create_static_vport(phba);
13971 lpfc_unset_hba(phba);
13972 out_free_sysfs_attr:
13973 lpfc_free_sysfs_attr(vport);
13975 lpfc_destroy_shost(phba);
13976 out_unset_driver_resource:
13977 lpfc_unset_driver_resource_phase2(phba);
13978 out_free_iocb_list:
13979 lpfc_free_iocb_list(phba);
13980 out_unset_driver_resource_s3:
13981 lpfc_sli_driver_resource_unset(phba);
13982 out_unset_pci_mem_s3:
13983 lpfc_sli_pci_mem_unset(phba);
13984 out_disable_pci_dev:
13985 lpfc_disable_pci_dev(phba);
13987 scsi_host_put(shost);
13989 lpfc_hba_free(phba);
13994 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
13995 * @pdev: pointer to PCI device
13997 * This routine is to be called to disattach a device with SLI-3 interface
13998 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
13999 * removed from PCI bus, it performs all the necessary cleanup for the HBA
14000 * device to be removed from the PCI subsystem properly.
14003 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
14005 struct Scsi_Host *shost = pci_get_drvdata(pdev);
14006 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
14007 struct lpfc_vport **vports;
14008 struct lpfc_hba *phba = vport->phba;
14011 spin_lock_irq(&phba->hbalock);
14012 vport->load_flag |= FC_UNLOADING;
14013 spin_unlock_irq(&phba->hbalock);
14015 lpfc_free_sysfs_attr(vport);
14017 /* Release all the vports against this physical port */
14018 vports = lpfc_create_vport_work_array(phba);
14019 if (vports != NULL)
14020 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
14021 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
14023 fc_vport_terminate(vports[i]->fc_vport);
14025 lpfc_destroy_vport_work_array(phba, vports);
14027 /* Remove FC host with the physical port */
14028 fc_remove_host(shost);
14029 scsi_remove_host(shost);
14031 /* Clean up all nodes, mailboxes and IOs. */
14032 lpfc_cleanup(vport);
14035 * Bring down the SLI Layer. This step disable all interrupts,
14036 * clears the rings, discards all mailbox commands, and resets
14040 /* HBA interrupt will be disabled after this call */
14041 lpfc_sli_hba_down(phba);
14042 /* Stop kthread signal shall trigger work_done one more time */
14043 kthread_stop(phba->worker_thread);
14044 /* Final cleanup of txcmplq and reset the HBA */
14045 lpfc_sli_brdrestart(phba);
14047 kfree(phba->vpi_bmask);
14048 kfree(phba->vpi_ids);
14050 lpfc_stop_hba_timers(phba);
14051 spin_lock_irq(&phba->port_list_lock);
14052 list_del_init(&vport->listentry);
14053 spin_unlock_irq(&phba->port_list_lock);
14055 lpfc_debugfs_terminate(vport);
14057 /* Disable SR-IOV if enabled */
14058 if (phba->cfg_sriov_nr_virtfn)
14059 pci_disable_sriov(pdev);
14061 /* Disable interrupt */
14062 lpfc_sli_disable_intr(phba);
14064 scsi_host_put(shost);
14067 * Call scsi_free before mem_free since scsi bufs are released to their
14068 * corresponding pools here.
14070 lpfc_scsi_free(phba);
14071 lpfc_free_iocb_list(phba);
14073 lpfc_mem_free_all(phba);
14075 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
14076 phba->hbqslimp.virt, phba->hbqslimp.phys);
14078 /* Free resources associated with SLI2 interface */
14079 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
14080 phba->slim2p.virt, phba->slim2p.phys);
14082 /* unmap adapter SLIM and Control Registers */
14083 iounmap(phba->ctrl_regs_memmap_p);
14084 iounmap(phba->slim_memmap_p);
14086 lpfc_hba_free(phba);
14088 pci_release_mem_regions(pdev);
14089 pci_disable_device(pdev);
14093 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
14094 * @dev_d: pointer to device
14096 * This routine is to be called from the kernel's PCI subsystem to support
14097 * system Power Management (PM) to device with SLI-3 interface spec. When
14098 * PM invokes this method, it quiesces the device by stopping the driver's
14099 * worker thread for the device, turning off device's interrupt and DMA,
14100 * and bring the device offline. Note that as the driver implements the
14101 * minimum PM requirements to a power-aware driver's PM support for the
14102 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
14103 * to the suspend() method call will be treated as SUSPEND and the driver will
14104 * fully reinitialize its device during resume() method call, the driver will
14105 * set device to PCI_D3hot state in PCI config space instead of setting it
14106 * according to the @msg provided by the PM.
14109 * 0 - driver suspended the device
14112 static int __maybe_unused
14113 lpfc_pci_suspend_one_s3(struct device *dev_d)
14115 struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14116 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14118 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14119 "0473 PCI device Power Management suspend.\n");
14121 /* Bring down the device */
14122 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14123 lpfc_offline(phba);
14124 kthread_stop(phba->worker_thread);
14126 /* Disable interrupt from device */
14127 lpfc_sli_disable_intr(phba);
14133 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
14134 * @dev_d: pointer to device
14136 * This routine is to be called from the kernel's PCI subsystem to support
14137 * system Power Management (PM) to device with SLI-3 interface spec. When PM
14138 * invokes this method, it restores the device's PCI config space state and
14139 * fully reinitializes the device and brings it online. Note that as the
14140 * driver implements the minimum PM requirements to a power-aware driver's
14141 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
14142 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
14143 * driver will fully reinitialize its device during resume() method call,
14144 * the device will be set to PCI_D0 directly in PCI config space before
14145 * restoring the state.
14148 * 0 - driver suspended the device
14151 static int __maybe_unused
14152 lpfc_pci_resume_one_s3(struct device *dev_d)
14154 struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14155 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14156 uint32_t intr_mode;
14159 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14160 "0452 PCI device Power Management resume.\n");
14162 /* Startup the kernel thread for this host adapter. */
14163 phba->worker_thread = kthread_run(lpfc_do_work, phba,
14164 "lpfc_worker_%d", phba->brd_no);
14165 if (IS_ERR(phba->worker_thread)) {
14166 error = PTR_ERR(phba->worker_thread);
14167 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14168 "0434 PM resume failed to start worker "
14169 "thread: error=x%x.\n", error);
14173 /* Init cpu_map array */
14174 lpfc_cpu_map_array_init(phba);
14175 /* Init hba_eq_hdl array */
14176 lpfc_hba_eq_hdl_array_init(phba);
14177 /* Configure and enable interrupt */
14178 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
14179 if (intr_mode == LPFC_INTR_ERROR) {
14180 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14181 "0430 PM resume Failed to enable interrupt\n");
14184 phba->intr_mode = intr_mode;
14186 /* Restart HBA and bring it online */
14187 lpfc_sli_brdrestart(phba);
14190 /* Log the current active interrupt mode */
14191 lpfc_log_intr_mode(phba, phba->intr_mode);
14197 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
14198 * @phba: pointer to lpfc hba data structure.
14200 * This routine is called to prepare the SLI3 device for PCI slot recover. It
14201 * aborts all the outstanding SCSI I/Os to the pci device.
14204 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
14206 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14207 "2723 PCI channel I/O abort preparing for recovery\n");
14210 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
14211 * and let the SCSI mid-layer to retry them to recover.
14213 lpfc_sli_abort_fcp_rings(phba);
14217 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
14218 * @phba: pointer to lpfc hba data structure.
14220 * This routine is called to prepare the SLI3 device for PCI slot reset. It
14221 * disables the device interrupt and pci device, and aborts the internal FCP
14225 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
14227 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14228 "2710 PCI channel disable preparing for reset\n");
14230 /* Block any management I/Os to the device */
14231 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
14233 /* Block all SCSI devices' I/Os on the host */
14234 lpfc_scsi_dev_block(phba);
14236 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
14237 lpfc_sli_flush_io_rings(phba);
14239 /* stop all timers */
14240 lpfc_stop_hba_timers(phba);
14242 /* Disable interrupt and pci device */
14243 lpfc_sli_disable_intr(phba);
14244 pci_disable_device(phba->pcidev);
14248 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
14249 * @phba: pointer to lpfc hba data structure.
14251 * This routine is called to prepare the SLI3 device for PCI slot permanently
14252 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
14256 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
14258 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14259 "2711 PCI channel permanent disable for failure\n");
14260 /* Block all SCSI devices' I/Os on the host */
14261 lpfc_scsi_dev_block(phba);
14263 /* stop all timers */
14264 lpfc_stop_hba_timers(phba);
14266 /* Clean up all driver's outstanding SCSI I/Os */
14267 lpfc_sli_flush_io_rings(phba);
14271 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
14272 * @pdev: pointer to PCI device.
14273 * @state: the current PCI connection state.
14275 * This routine is called from the PCI subsystem for I/O error handling to
14276 * device with SLI-3 interface spec. This function is called by the PCI
14277 * subsystem after a PCI bus error affecting this device has been detected.
14278 * When this function is invoked, it will need to stop all the I/Os and
14279 * interrupt(s) to the device. Once that is done, it will return
14280 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
14284 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
14285 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
14286 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
14288 static pci_ers_result_t
14289 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
14291 struct Scsi_Host *shost = pci_get_drvdata(pdev);
14292 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14295 case pci_channel_io_normal:
14296 /* Non-fatal error, prepare for recovery */
14297 lpfc_sli_prep_dev_for_recover(phba);
14298 return PCI_ERS_RESULT_CAN_RECOVER;
14299 case pci_channel_io_frozen:
14300 /* Fatal error, prepare for slot reset */
14301 lpfc_sli_prep_dev_for_reset(phba);
14302 return PCI_ERS_RESULT_NEED_RESET;
14303 case pci_channel_io_perm_failure:
14304 /* Permanent failure, prepare for device down */
14305 lpfc_sli_prep_dev_for_perm_failure(phba);
14306 return PCI_ERS_RESULT_DISCONNECT;
14308 /* Unknown state, prepare and request slot reset */
14309 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14310 "0472 Unknown PCI error state: x%x\n", state);
14311 lpfc_sli_prep_dev_for_reset(phba);
14312 return PCI_ERS_RESULT_NEED_RESET;
14317 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
14318 * @pdev: pointer to PCI device.
14320 * This routine is called from the PCI subsystem for error handling to
14321 * device with SLI-3 interface spec. This is called after PCI bus has been
14322 * reset to restart the PCI card from scratch, as if from a cold-boot.
14323 * During the PCI subsystem error recovery, after driver returns
14324 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
14325 * recovery and then call this routine before calling the .resume method
14326 * to recover the device. This function will initialize the HBA device,
14327 * enable the interrupt, but it will just put the HBA to offline state
14328 * without passing any I/O traffic.
14331 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
14332 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
14334 static pci_ers_result_t
14335 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
14337 struct Scsi_Host *shost = pci_get_drvdata(pdev);
14338 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14339 struct lpfc_sli *psli = &phba->sli;
14340 uint32_t intr_mode;
14342 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
14343 if (pci_enable_device_mem(pdev)) {
14344 printk(KERN_ERR "lpfc: Cannot re-enable "
14345 "PCI device after reset.\n");
14346 return PCI_ERS_RESULT_DISCONNECT;
14349 pci_restore_state(pdev);
14352 * As the new kernel behavior of pci_restore_state() API call clears
14353 * device saved_state flag, need to save the restored state again.
14355 pci_save_state(pdev);
14357 if (pdev->is_busmaster)
14358 pci_set_master(pdev);
14360 spin_lock_irq(&phba->hbalock);
14361 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
14362 spin_unlock_irq(&phba->hbalock);
14364 /* Configure and enable interrupt */
14365 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
14366 if (intr_mode == LPFC_INTR_ERROR) {
14367 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14368 "0427 Cannot re-enable interrupt after "
14370 return PCI_ERS_RESULT_DISCONNECT;
14372 phba->intr_mode = intr_mode;
14374 /* Take device offline, it will perform cleanup */
14375 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14376 lpfc_offline(phba);
14377 lpfc_sli_brdrestart(phba);
14379 /* Log the current active interrupt mode */
14380 lpfc_log_intr_mode(phba, phba->intr_mode);
14382 return PCI_ERS_RESULT_RECOVERED;
14386 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
14387 * @pdev: pointer to PCI device
14389 * This routine is called from the PCI subsystem for error handling to device
14390 * with SLI-3 interface spec. It is called when kernel error recovery tells
14391 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
14392 * error recovery. After this call, traffic can start to flow from this device
14396 lpfc_io_resume_s3(struct pci_dev *pdev)
14398 struct Scsi_Host *shost = pci_get_drvdata(pdev);
14399 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14401 /* Bring device online, it will be no-op for non-fatal error resume */
14406 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
14407 * @phba: pointer to lpfc hba data structure.
14409 * returns the number of ELS/CT IOCBs to reserve
14412 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
14414 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
14416 if (phba->sli_rev == LPFC_SLI_REV4) {
14417 if (max_xri <= 100)
14419 else if (max_xri <= 256)
14421 else if (max_xri <= 512)
14423 else if (max_xri <= 1024)
14425 else if (max_xri <= 1536)
14427 else if (max_xri <= 2048)
14436 * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
14437 * @phba: pointer to lpfc hba data structure.
14439 * returns the number of ELS/CT + NVMET IOCBs to reserve
14442 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
14444 int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
14446 if (phba->nvmet_support)
14447 max_xri += LPFC_NVMET_BUF_POST;
14453 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
14454 uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
14455 const struct firmware *fw)
14460 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
14461 /* Three cases: (1) FW was not supported on the detected adapter.
14462 * (2) FW update has been locked out administratively.
14463 * (3) Some other error during FW update.
14464 * In each case, an unmaskable message is written to the console
14465 * for admin diagnosis.
14467 if (offset == ADD_STATUS_FW_NOT_SUPPORTED ||
14468 (sli_family == LPFC_SLI_INTF_FAMILY_G6 &&
14469 magic_number != MAGIC_NUMBER_G6) ||
14470 (sli_family == LPFC_SLI_INTF_FAMILY_G7 &&
14471 magic_number != MAGIC_NUMBER_G7) ||
14472 (sli_family == LPFC_SLI_INTF_FAMILY_G7P &&
14473 magic_number != MAGIC_NUMBER_G7P)) {
14474 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14475 "3030 This firmware version is not supported on"
14476 " this HBA model. Device:%x Magic:%x Type:%x "
14477 "ID:%x Size %d %zd\n",
14478 phba->pcidev->device, magic_number, ftype, fid,
14481 } else if (offset == ADD_STATUS_FW_DOWNLOAD_HW_DISABLED) {
14482 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14483 "3021 Firmware downloads have been prohibited "
14484 "by a system configuration setting on "
14485 "Device:%x Magic:%x Type:%x ID:%x Size %d "
14487 phba->pcidev->device, magic_number, ftype, fid,
14491 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14492 "3022 FW Download failed. Add Status x%x "
14493 "Device:%x Magic:%x Type:%x ID:%x Size %d "
14495 offset, phba->pcidev->device, magic_number,
14496 ftype, fid, fsize, fw->size);
14503 * lpfc_write_firmware - attempt to write a firmware image to the port
14504 * @fw: pointer to firmware image returned from request_firmware.
14505 * @context: pointer to firmware image returned from request_firmware.
14509 lpfc_write_firmware(const struct firmware *fw, void *context)
14511 struct lpfc_hba *phba = (struct lpfc_hba *)context;
14512 char fwrev[FW_REV_STR_SIZE];
14513 struct lpfc_grp_hdr *image;
14514 struct list_head dma_buffer_list;
14516 struct lpfc_dmabuf *dmabuf, *next;
14517 uint32_t offset = 0, temp_offset = 0;
14518 uint32_t magic_number, ftype, fid, fsize;
14520 /* It can be null in no-wait mode, sanity check */
14525 image = (struct lpfc_grp_hdr *)fw->data;
14527 magic_number = be32_to_cpu(image->magic_number);
14528 ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
14529 fid = bf_get_be32(lpfc_grp_hdr_id, image);
14530 fsize = be32_to_cpu(image->size);
14532 INIT_LIST_HEAD(&dma_buffer_list);
14533 lpfc_decode_firmware_rev(phba, fwrev, 1);
14534 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
14535 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14536 "3023 Updating Firmware, Current Version:%s "
14537 "New Version:%s\n",
14538 fwrev, image->revision);
14539 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
14540 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
14546 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
14550 if (!dmabuf->virt) {
14555 list_add_tail(&dmabuf->list, &dma_buffer_list);
14557 while (offset < fw->size) {
14558 temp_offset = offset;
14559 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
14560 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
14561 memcpy(dmabuf->virt,
14562 fw->data + temp_offset,
14563 fw->size - temp_offset);
14564 temp_offset = fw->size;
14567 memcpy(dmabuf->virt, fw->data + temp_offset,
14569 temp_offset += SLI4_PAGE_SIZE;
14571 rc = lpfc_wr_object(phba, &dma_buffer_list,
14572 (fw->size - offset), &offset);
14574 rc = lpfc_log_write_firmware_error(phba, offset,
14585 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14586 "3029 Skipped Firmware update, Current "
14587 "Version:%s New Version:%s\n",
14588 fwrev, image->revision);
14591 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
14592 list_del(&dmabuf->list);
14593 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
14594 dmabuf->virt, dmabuf->phys);
14597 release_firmware(fw);
14600 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14601 "3062 Firmware update error, status %d.\n", rc);
14603 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14604 "3024 Firmware update success: size %d.\n", rc);
14608 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
14609 * @phba: pointer to lpfc hba data structure.
14610 * @fw_upgrade: which firmware to update.
14612 * This routine is called to perform Linux generic firmware upgrade on device
14613 * that supports such feature.
14616 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
14618 uint8_t file_name[ELX_MODEL_NAME_SIZE];
14620 const struct firmware *fw;
14622 /* Only supported on SLI4 interface type 2 for now */
14623 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
14624 LPFC_SLI_INTF_IF_TYPE_2)
14627 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
14629 if (fw_upgrade == INT_FW_UPGRADE) {
14630 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_UEVENT,
14631 file_name, &phba->pcidev->dev,
14632 GFP_KERNEL, (void *)phba,
14633 lpfc_write_firmware);
14634 } else if (fw_upgrade == RUN_FW_UPGRADE) {
14635 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
14637 lpfc_write_firmware(fw, (void *)phba);
14646 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
14647 * @pdev: pointer to PCI device
14648 * @pid: pointer to PCI device identifier
14650 * This routine is called from the kernel's PCI subsystem to device with
14651 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
14652 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
14653 * information of the device and driver to see if the driver state that it
14654 * can support this kind of device. If the match is successful, the driver
14655 * core invokes this routine. If this routine determines it can claim the HBA,
14656 * it does all the initialization that it needs to do to handle the HBA
14660 * 0 - driver can claim the device
14661 * negative value - driver can not claim the device
14664 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
14666 struct lpfc_hba *phba;
14667 struct lpfc_vport *vport = NULL;
14668 struct Scsi_Host *shost = NULL;
14670 uint32_t cfg_mode, intr_mode;
14672 /* Allocate memory for HBA structure */
14673 phba = lpfc_hba_alloc(pdev);
14677 INIT_LIST_HEAD(&phba->poll_list);
14679 /* Perform generic PCI device enabling operation */
14680 error = lpfc_enable_pci_dev(phba);
14682 goto out_free_phba;
14684 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
14685 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
14687 goto out_disable_pci_dev;
14689 /* Set up SLI-4 specific device PCI memory space */
14690 error = lpfc_sli4_pci_mem_setup(phba);
14692 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14693 "1410 Failed to set up pci memory space.\n");
14694 goto out_disable_pci_dev;
14697 /* Set up SLI-4 Specific device driver resources */
14698 error = lpfc_sli4_driver_resource_setup(phba);
14700 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14701 "1412 Failed to set up driver resource.\n");
14702 goto out_unset_pci_mem_s4;
14705 INIT_LIST_HEAD(&phba->active_rrq_list);
14706 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
14708 /* Set up common device driver resources */
14709 error = lpfc_setup_driver_resource_phase2(phba);
14711 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14712 "1414 Failed to set up driver resource.\n");
14713 goto out_unset_driver_resource_s4;
14716 /* Get the default values for Model Name and Description */
14717 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
14719 /* Now, trying to enable interrupt and bring up the device */
14720 cfg_mode = phba->cfg_use_msi;
14722 /* Put device to a known state before enabling interrupt */
14723 phba->pport = NULL;
14724 lpfc_stop_port(phba);
14726 /* Init cpu_map array */
14727 lpfc_cpu_map_array_init(phba);
14729 /* Init hba_eq_hdl array */
14730 lpfc_hba_eq_hdl_array_init(phba);
14732 /* Configure and enable interrupt */
14733 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
14734 if (intr_mode == LPFC_INTR_ERROR) {
14735 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14736 "0426 Failed to enable interrupt.\n");
14738 goto out_unset_driver_resource;
14740 /* Default to single EQ for non-MSI-X */
14741 if (phba->intr_type != MSIX) {
14742 phba->cfg_irq_chann = 1;
14743 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
14744 if (phba->nvmet_support)
14745 phba->cfg_nvmet_mrq = 1;
14748 lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
14750 /* Create SCSI host to the physical port */
14751 error = lpfc_create_shost(phba);
14753 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14754 "1415 Failed to create scsi host.\n");
14755 goto out_disable_intr;
14757 vport = phba->pport;
14758 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
14760 /* Configure sysfs attributes */
14761 error = lpfc_alloc_sysfs_attr(vport);
14763 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14764 "1416 Failed to allocate sysfs attr\n");
14765 goto out_destroy_shost;
14768 /* Set up SLI-4 HBA */
14769 if (lpfc_sli4_hba_setup(phba)) {
14770 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14771 "1421 Failed to set up hba\n");
14773 goto out_free_sysfs_attr;
14776 /* Log the current active interrupt mode */
14777 phba->intr_mode = intr_mode;
14778 lpfc_log_intr_mode(phba, intr_mode);
14780 /* Perform post initialization setup */
14781 lpfc_post_init_setup(phba);
14783 /* NVME support in FW earlier in the driver load corrects the
14784 * FC4 type making a check for nvme_support unnecessary.
14786 if (phba->nvmet_support == 0) {
14787 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
14788 /* Create NVME binding with nvme_fc_transport. This
14789 * ensures the vport is initialized. If the localport
14790 * create fails, it should not unload the driver to
14791 * support field issues.
14793 error = lpfc_nvme_create_localport(vport);
14795 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14796 "6004 NVME registration "
14797 "failed, error x%x\n",
14803 /* check for firmware upgrade or downgrade */
14804 if (phba->cfg_request_firmware_upgrade)
14805 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
14807 /* Check if there are static vports to be created. */
14808 lpfc_create_static_vport(phba);
14810 /* Enable RAS FW log support */
14811 lpfc_sli4_ras_setup(phba);
14813 timer_setup(&phba->cpuhp_poll_timer, lpfc_sli4_poll_hbtimer, 0);
14814 cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state, &phba->cpuhp);
14818 out_free_sysfs_attr:
14819 lpfc_free_sysfs_attr(vport);
14821 lpfc_destroy_shost(phba);
14823 lpfc_sli4_disable_intr(phba);
14824 out_unset_driver_resource:
14825 lpfc_unset_driver_resource_phase2(phba);
14826 out_unset_driver_resource_s4:
14827 lpfc_sli4_driver_resource_unset(phba);
14828 out_unset_pci_mem_s4:
14829 lpfc_sli4_pci_mem_unset(phba);
14830 out_disable_pci_dev:
14831 lpfc_disable_pci_dev(phba);
14833 scsi_host_put(shost);
14835 lpfc_hba_free(phba);
14840 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
14841 * @pdev: pointer to PCI device
14843 * This routine is called from the kernel's PCI subsystem to device with
14844 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
14845 * removed from PCI bus, it performs all the necessary cleanup for the HBA
14846 * device to be removed from the PCI subsystem properly.
14849 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
14851 struct Scsi_Host *shost = pci_get_drvdata(pdev);
14852 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
14853 struct lpfc_vport **vports;
14854 struct lpfc_hba *phba = vport->phba;
14857 /* Mark the device unloading flag */
14858 spin_lock_irq(&phba->hbalock);
14859 vport->load_flag |= FC_UNLOADING;
14860 spin_unlock_irq(&phba->hbalock);
14862 lpfc_unreg_congestion_buf(phba);
14864 lpfc_free_sysfs_attr(vport);
14866 /* Release all the vports against this physical port */
14867 vports = lpfc_create_vport_work_array(phba);
14868 if (vports != NULL)
14869 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
14870 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
14872 fc_vport_terminate(vports[i]->fc_vport);
14874 lpfc_destroy_vport_work_array(phba, vports);
14876 /* Remove FC host with the physical port */
14877 fc_remove_host(shost);
14878 scsi_remove_host(shost);
14880 /* Perform ndlp cleanup on the physical port. The nvme and nvmet
14881 * localports are destroyed after to cleanup all transport memory.
14883 lpfc_cleanup(vport);
14884 lpfc_nvmet_destroy_targetport(phba);
14885 lpfc_nvme_destroy_localport(vport);
14887 /* De-allocate multi-XRI pools */
14888 if (phba->cfg_xri_rebalancing)
14889 lpfc_destroy_multixri_pools(phba);
14892 * Bring down the SLI Layer. This step disables all interrupts,
14893 * clears the rings, discards all mailbox commands, and resets
14894 * the HBA FCoE function.
14896 lpfc_debugfs_terminate(vport);
14898 lpfc_stop_hba_timers(phba);
14899 spin_lock_irq(&phba->port_list_lock);
14900 list_del_init(&vport->listentry);
14901 spin_unlock_irq(&phba->port_list_lock);
14903 /* Perform scsi free before driver resource_unset since scsi
14904 * buffers are released to their corresponding pools here.
14906 lpfc_io_free(phba);
14907 lpfc_free_iocb_list(phba);
14908 lpfc_sli4_hba_unset(phba);
14910 lpfc_unset_driver_resource_phase2(phba);
14911 lpfc_sli4_driver_resource_unset(phba);
14913 /* Unmap adapter Control and Doorbell registers */
14914 lpfc_sli4_pci_mem_unset(phba);
14916 /* Release PCI resources and disable device's PCI function */
14917 scsi_host_put(shost);
14918 lpfc_disable_pci_dev(phba);
14920 /* Finally, free the driver's device data structure */
14921 lpfc_hba_free(phba);
14927 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
14928 * @dev_d: pointer to device
14930 * This routine is called from the kernel's PCI subsystem to support system
14931 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
14932 * this method, it quiesces the device by stopping the driver's worker
14933 * thread for the device, turning off device's interrupt and DMA, and bring
14934 * the device offline. Note that as the driver implements the minimum PM
14935 * requirements to a power-aware driver's PM support for suspend/resume -- all
14936 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
14937 * method call will be treated as SUSPEND and the driver will fully
14938 * reinitialize its device during resume() method call, the driver will set
14939 * device to PCI_D3hot state in PCI config space instead of setting it
14940 * according to the @msg provided by the PM.
14943 * 0 - driver suspended the device
14946 static int __maybe_unused
14947 lpfc_pci_suspend_one_s4(struct device *dev_d)
14949 struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14950 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14952 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14953 "2843 PCI device Power Management suspend.\n");
14955 /* Bring down the device */
14956 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14957 lpfc_offline(phba);
14958 kthread_stop(phba->worker_thread);
14960 /* Disable interrupt from device */
14961 lpfc_sli4_disable_intr(phba);
14962 lpfc_sli4_queue_destroy(phba);
14968 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
14969 * @dev_d: pointer to device
14971 * This routine is called from the kernel's PCI subsystem to support system
14972 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
14973 * this method, it restores the device's PCI config space state and fully
14974 * reinitializes the device and brings it online. Note that as the driver
14975 * implements the minimum PM requirements to a power-aware driver's PM for
14976 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
14977 * to the suspend() method call will be treated as SUSPEND and the driver
14978 * will fully reinitialize its device during resume() method call, the device
14979 * will be set to PCI_D0 directly in PCI config space before restoring the
14983 * 0 - driver suspended the device
14986 static int __maybe_unused
14987 lpfc_pci_resume_one_s4(struct device *dev_d)
14989 struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14990 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14991 uint32_t intr_mode;
14994 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14995 "0292 PCI device Power Management resume.\n");
14997 /* Startup the kernel thread for this host adapter. */
14998 phba->worker_thread = kthread_run(lpfc_do_work, phba,
14999 "lpfc_worker_%d", phba->brd_no);
15000 if (IS_ERR(phba->worker_thread)) {
15001 error = PTR_ERR(phba->worker_thread);
15002 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15003 "0293 PM resume failed to start worker "
15004 "thread: error=x%x.\n", error);
15008 /* Configure and enable interrupt */
15009 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
15010 if (intr_mode == LPFC_INTR_ERROR) {
15011 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15012 "0294 PM resume Failed to enable interrupt\n");
15015 phba->intr_mode = intr_mode;
15017 /* Restart HBA and bring it online */
15018 lpfc_sli_brdrestart(phba);
15021 /* Log the current active interrupt mode */
15022 lpfc_log_intr_mode(phba, phba->intr_mode);
15028 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
15029 * @phba: pointer to lpfc hba data structure.
15031 * This routine is called to prepare the SLI4 device for PCI slot recover. It
15032 * aborts all the outstanding SCSI I/Os to the pci device.
15035 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
15037 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15038 "2828 PCI channel I/O abort preparing for recovery\n");
15040 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
15041 * and let the SCSI mid-layer to retry them to recover.
15043 lpfc_sli_abort_fcp_rings(phba);
15047 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
15048 * @phba: pointer to lpfc hba data structure.
15050 * This routine is called to prepare the SLI4 device for PCI slot reset. It
15051 * disables the device interrupt and pci device, and aborts the internal FCP
15055 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
15057 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15058 "2826 PCI channel disable preparing for reset\n");
15060 /* Block any management I/Os to the device */
15061 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
15063 /* Block all SCSI devices' I/Os on the host */
15064 lpfc_scsi_dev_block(phba);
15066 /* Flush all driver's outstanding I/Os as we are to reset */
15067 lpfc_sli_flush_io_rings(phba);
15069 /* stop all timers */
15070 lpfc_stop_hba_timers(phba);
15072 /* Disable interrupt and pci device */
15073 lpfc_sli4_disable_intr(phba);
15074 lpfc_sli4_queue_destroy(phba);
15075 pci_disable_device(phba->pcidev);
15079 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
15080 * @phba: pointer to lpfc hba data structure.
15082 * This routine is called to prepare the SLI4 device for PCI slot permanently
15083 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
15087 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
15089 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15090 "2827 PCI channel permanent disable for failure\n");
15092 /* Block all SCSI devices' I/Os on the host */
15093 lpfc_scsi_dev_block(phba);
15095 /* stop all timers */
15096 lpfc_stop_hba_timers(phba);
15098 /* Clean up all driver's outstanding I/Os */
15099 lpfc_sli_flush_io_rings(phba);
15103 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
15104 * @pdev: pointer to PCI device.
15105 * @state: the current PCI connection state.
15107 * This routine is called from the PCI subsystem for error handling to device
15108 * with SLI-4 interface spec. This function is called by the PCI subsystem
15109 * after a PCI bus error affecting this device has been detected. When this
15110 * function is invoked, it will need to stop all the I/Os and interrupt(s)
15111 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
15112 * for the PCI subsystem to perform proper recovery as desired.
15115 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
15116 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15118 static pci_ers_result_t
15119 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
15121 struct Scsi_Host *shost = pci_get_drvdata(pdev);
15122 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15125 case pci_channel_io_normal:
15126 /* Non-fatal error, prepare for recovery */
15127 lpfc_sli4_prep_dev_for_recover(phba);
15128 return PCI_ERS_RESULT_CAN_RECOVER;
15129 case pci_channel_io_frozen:
15130 phba->hba_flag |= HBA_PCI_ERR;
15131 /* Fatal error, prepare for slot reset */
15132 lpfc_sli4_prep_dev_for_reset(phba);
15133 return PCI_ERS_RESULT_NEED_RESET;
15134 case pci_channel_io_perm_failure:
15135 phba->hba_flag |= HBA_PCI_ERR;
15136 /* Permanent failure, prepare for device down */
15137 lpfc_sli4_prep_dev_for_perm_failure(phba);
15138 return PCI_ERS_RESULT_DISCONNECT;
15140 phba->hba_flag |= HBA_PCI_ERR;
15141 /* Unknown state, prepare and request slot reset */
15142 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15143 "2825 Unknown PCI error state: x%x\n", state);
15144 lpfc_sli4_prep_dev_for_reset(phba);
15145 return PCI_ERS_RESULT_NEED_RESET;
15150 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
15151 * @pdev: pointer to PCI device.
15153 * This routine is called from the PCI subsystem for error handling to device
15154 * with SLI-4 interface spec. It is called after PCI bus has been reset to
15155 * restart the PCI card from scratch, as if from a cold-boot. During the
15156 * PCI subsystem error recovery, after the driver returns
15157 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
15158 * recovery and then call this routine before calling the .resume method to
15159 * recover the device. This function will initialize the HBA device, enable
15160 * the interrupt, but it will just put the HBA to offline state without
15161 * passing any I/O traffic.
15164 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
15165 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15167 static pci_ers_result_t
15168 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
15170 struct Scsi_Host *shost = pci_get_drvdata(pdev);
15171 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15172 struct lpfc_sli *psli = &phba->sli;
15173 uint32_t intr_mode;
15175 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
15176 if (pci_enable_device_mem(pdev)) {
15177 printk(KERN_ERR "lpfc: Cannot re-enable "
15178 "PCI device after reset.\n");
15179 return PCI_ERS_RESULT_DISCONNECT;
15182 pci_restore_state(pdev);
15184 phba->hba_flag &= ~HBA_PCI_ERR;
15186 * As the new kernel behavior of pci_restore_state() API call clears
15187 * device saved_state flag, need to save the restored state again.
15189 pci_save_state(pdev);
15191 if (pdev->is_busmaster)
15192 pci_set_master(pdev);
15194 spin_lock_irq(&phba->hbalock);
15195 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
15196 spin_unlock_irq(&phba->hbalock);
15198 /* Configure and enable interrupt */
15199 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
15200 if (intr_mode == LPFC_INTR_ERROR) {
15201 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15202 "2824 Cannot re-enable interrupt after "
15204 return PCI_ERS_RESULT_DISCONNECT;
15206 phba->intr_mode = intr_mode;
15207 lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
15209 /* Log the current active interrupt mode */
15210 lpfc_log_intr_mode(phba, phba->intr_mode);
15212 return PCI_ERS_RESULT_RECOVERED;
15216 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
15217 * @pdev: pointer to PCI device
15219 * This routine is called from the PCI subsystem for error handling to device
15220 * with SLI-4 interface spec. It is called when kernel error recovery tells
15221 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
15222 * error recovery. After this call, traffic can start to flow from this device
15226 lpfc_io_resume_s4(struct pci_dev *pdev)
15228 struct Scsi_Host *shost = pci_get_drvdata(pdev);
15229 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15232 * In case of slot reset, as function reset is performed through
15233 * mailbox command which needs DMA to be enabled, this operation
15234 * has to be moved to the io resume phase. Taking device offline
15235 * will perform the necessary cleanup.
15237 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
15238 /* Perform device reset */
15239 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
15240 lpfc_offline(phba);
15241 lpfc_sli_brdrestart(phba);
15242 /* Bring the device back online */
15248 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
15249 * @pdev: pointer to PCI device
15250 * @pid: pointer to PCI device identifier
15252 * This routine is to be registered to the kernel's PCI subsystem. When an
15253 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
15254 * at PCI device-specific information of the device and driver to see if the
15255 * driver state that it can support this kind of device. If the match is
15256 * successful, the driver core invokes this routine. This routine dispatches
15257 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
15258 * do all the initialization that it needs to do to handle the HBA device
15262 * 0 - driver can claim the device
15263 * negative value - driver can not claim the device
15266 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
15269 struct lpfc_sli_intf intf;
15271 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
15274 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
15275 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
15276 rc = lpfc_pci_probe_one_s4(pdev, pid);
15278 rc = lpfc_pci_probe_one_s3(pdev, pid);
15284 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
15285 * @pdev: pointer to PCI device
15287 * This routine is to be registered to the kernel's PCI subsystem. When an
15288 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
15289 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
15290 * remove routine, which will perform all the necessary cleanup for the
15291 * device to be removed from the PCI subsystem properly.
15294 lpfc_pci_remove_one(struct pci_dev *pdev)
15296 struct Scsi_Host *shost = pci_get_drvdata(pdev);
15297 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15299 switch (phba->pci_dev_grp) {
15300 case LPFC_PCI_DEV_LP:
15301 lpfc_pci_remove_one_s3(pdev);
15303 case LPFC_PCI_DEV_OC:
15304 lpfc_pci_remove_one_s4(pdev);
15307 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15308 "1424 Invalid PCI device group: 0x%x\n",
15309 phba->pci_dev_grp);
15316 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
15317 * @dev: pointer to device
15319 * This routine is to be registered to the kernel's PCI subsystem to support
15320 * system Power Management (PM). When PM invokes this method, it dispatches
15321 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
15322 * suspend the device.
15325 * 0 - driver suspended the device
15328 static int __maybe_unused
15329 lpfc_pci_suspend_one(struct device *dev)
15331 struct Scsi_Host *shost = dev_get_drvdata(dev);
15332 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15335 switch (phba->pci_dev_grp) {
15336 case LPFC_PCI_DEV_LP:
15337 rc = lpfc_pci_suspend_one_s3(dev);
15339 case LPFC_PCI_DEV_OC:
15340 rc = lpfc_pci_suspend_one_s4(dev);
15343 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15344 "1425 Invalid PCI device group: 0x%x\n",
15345 phba->pci_dev_grp);
15352 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
15353 * @dev: pointer to device
15355 * This routine is to be registered to the kernel's PCI subsystem to support
15356 * system Power Management (PM). When PM invokes this method, it dispatches
15357 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
15358 * resume the device.
15361 * 0 - driver suspended the device
15364 static int __maybe_unused
15365 lpfc_pci_resume_one(struct device *dev)
15367 struct Scsi_Host *shost = dev_get_drvdata(dev);
15368 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15371 switch (phba->pci_dev_grp) {
15372 case LPFC_PCI_DEV_LP:
15373 rc = lpfc_pci_resume_one_s3(dev);
15375 case LPFC_PCI_DEV_OC:
15376 rc = lpfc_pci_resume_one_s4(dev);
15379 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15380 "1426 Invalid PCI device group: 0x%x\n",
15381 phba->pci_dev_grp);
15388 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
15389 * @pdev: pointer to PCI device.
15390 * @state: the current PCI connection state.
15392 * This routine is registered to the PCI subsystem for error handling. This
15393 * function is called by the PCI subsystem after a PCI bus error affecting
15394 * this device has been detected. When this routine is invoked, it dispatches
15395 * the action to the proper SLI-3 or SLI-4 device error detected handling
15396 * routine, which will perform the proper error detected operation.
15399 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
15400 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15402 static pci_ers_result_t
15403 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
15405 struct Scsi_Host *shost = pci_get_drvdata(pdev);
15406 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15407 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
15409 if (phba->link_state == LPFC_HBA_ERROR &&
15410 phba->hba_flag & HBA_IOQ_FLUSH)
15411 return PCI_ERS_RESULT_NEED_RESET;
15413 switch (phba->pci_dev_grp) {
15414 case LPFC_PCI_DEV_LP:
15415 rc = lpfc_io_error_detected_s3(pdev, state);
15417 case LPFC_PCI_DEV_OC:
15418 rc = lpfc_io_error_detected_s4(pdev, state);
15421 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15422 "1427 Invalid PCI device group: 0x%x\n",
15423 phba->pci_dev_grp);
15430 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
15431 * @pdev: pointer to PCI device.
15433 * This routine is registered to the PCI subsystem for error handling. This
15434 * function is called after PCI bus has been reset to restart the PCI card
15435 * from scratch, as if from a cold-boot. When this routine is invoked, it
15436 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
15437 * routine, which will perform the proper device reset.
15440 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
15441 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15443 static pci_ers_result_t
15444 lpfc_io_slot_reset(struct pci_dev *pdev)
15446 struct Scsi_Host *shost = pci_get_drvdata(pdev);
15447 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15448 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
15450 switch (phba->pci_dev_grp) {
15451 case LPFC_PCI_DEV_LP:
15452 rc = lpfc_io_slot_reset_s3(pdev);
15454 case LPFC_PCI_DEV_OC:
15455 rc = lpfc_io_slot_reset_s4(pdev);
15458 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15459 "1428 Invalid PCI device group: 0x%x\n",
15460 phba->pci_dev_grp);
15467 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
15468 * @pdev: pointer to PCI device
15470 * This routine is registered to the PCI subsystem for error handling. It
15471 * is called when kernel error recovery tells the lpfc driver that it is
15472 * OK to resume normal PCI operation after PCI bus error recovery. When
15473 * this routine is invoked, it dispatches the action to the proper SLI-3
15474 * or SLI-4 device io_resume routine, which will resume the device operation.
15477 lpfc_io_resume(struct pci_dev *pdev)
15479 struct Scsi_Host *shost = pci_get_drvdata(pdev);
15480 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15482 switch (phba->pci_dev_grp) {
15483 case LPFC_PCI_DEV_LP:
15484 lpfc_io_resume_s3(pdev);
15486 case LPFC_PCI_DEV_OC:
15487 lpfc_io_resume_s4(pdev);
15490 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15491 "1429 Invalid PCI device group: 0x%x\n",
15492 phba->pci_dev_grp);
15499 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
15500 * @phba: pointer to lpfc hba data structure.
15502 * This routine checks to see if OAS is supported for this adapter. If
15503 * supported, the configure Flash Optimized Fabric flag is set. Otherwise,
15504 * the enable oas flag is cleared and the pool created for OAS device data
15509 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
15512 if (!phba->cfg_EnableXLane)
15515 if (phba->sli4_hba.pc_sli4_params.oas_supported) {
15519 mempool_destroy(phba->device_data_mem_pool);
15520 phba->device_data_mem_pool = NULL;
15527 * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
15528 * @phba: pointer to lpfc hba data structure.
15530 * This routine checks to see if RAS is supported by the adapter. Check the
15531 * function through which RAS support enablement is to be done.
15534 lpfc_sli4_ras_init(struct lpfc_hba *phba)
15536 /* if ASIC_GEN_NUM >= 0xC) */
15537 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
15538 LPFC_SLI_INTF_IF_TYPE_6) ||
15539 (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
15540 LPFC_SLI_INTF_FAMILY_G6)) {
15541 phba->ras_fwlog.ras_hwsupport = true;
15542 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
15543 phba->cfg_ras_fwlog_buffsize)
15544 phba->ras_fwlog.ras_enabled = true;
15546 phba->ras_fwlog.ras_enabled = false;
15548 phba->ras_fwlog.ras_hwsupport = false;
15553 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
15555 static const struct pci_error_handlers lpfc_err_handler = {
15556 .error_detected = lpfc_io_error_detected,
15557 .slot_reset = lpfc_io_slot_reset,
15558 .resume = lpfc_io_resume,
15561 static SIMPLE_DEV_PM_OPS(lpfc_pci_pm_ops_one,
15562 lpfc_pci_suspend_one,
15563 lpfc_pci_resume_one);
15565 static struct pci_driver lpfc_driver = {
15566 .name = LPFC_DRIVER_NAME,
15567 .id_table = lpfc_id_table,
15568 .probe = lpfc_pci_probe_one,
15569 .remove = lpfc_pci_remove_one,
15570 .shutdown = lpfc_pci_remove_one,
15571 .driver.pm = &lpfc_pci_pm_ops_one,
15572 .err_handler = &lpfc_err_handler,
15575 static const struct file_operations lpfc_mgmt_fop = {
15576 .owner = THIS_MODULE,
15579 static struct miscdevice lpfc_mgmt_dev = {
15580 .minor = MISC_DYNAMIC_MINOR,
15581 .name = "lpfcmgmt",
15582 .fops = &lpfc_mgmt_fop,
15586 * lpfc_init - lpfc module initialization routine
15588 * This routine is to be invoked when the lpfc module is loaded into the
15589 * kernel. The special kernel macro module_init() is used to indicate the
15590 * role of this routine to the kernel as lpfc module entry point.
15594 * -ENOMEM - FC attach transport failed
15595 * all others - failed
15602 pr_info(LPFC_MODULE_DESC "\n");
15603 pr_info(LPFC_COPYRIGHT "\n");
15605 error = misc_register(&lpfc_mgmt_dev);
15607 printk(KERN_ERR "Could not register lpfcmgmt device, "
15608 "misc_register returned with status %d", error);
15611 lpfc_transport_functions.vport_create = lpfc_vport_create;
15612 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
15613 lpfc_transport_template =
15614 fc_attach_transport(&lpfc_transport_functions);
15615 if (lpfc_transport_template == NULL)
15617 lpfc_vport_transport_template =
15618 fc_attach_transport(&lpfc_vport_transport_functions);
15619 if (lpfc_vport_transport_template == NULL) {
15620 fc_release_transport(lpfc_transport_template);
15623 lpfc_wqe_cmd_template();
15624 lpfc_nvmet_cmd_template();
15626 /* Initialize in case vector mapping is needed */
15627 lpfc_present_cpu = num_present_cpus();
15629 lpfc_pldv_detect = false;
15631 error = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN,
15632 "lpfc/sli4:online",
15633 lpfc_cpu_online, lpfc_cpu_offline);
15635 goto cpuhp_failure;
15636 lpfc_cpuhp_state = error;
15638 error = pci_register_driver(&lpfc_driver);
15645 cpuhp_remove_multi_state(lpfc_cpuhp_state);
15647 fc_release_transport(lpfc_transport_template);
15648 fc_release_transport(lpfc_vport_transport_template);
15650 misc_deregister(&lpfc_mgmt_dev);
15655 void lpfc_dmp_dbg(struct lpfc_hba *phba)
15657 unsigned int start_idx;
15658 unsigned int dbg_cnt;
15659 unsigned int temp_idx;
15662 unsigned long rem_nsec, iflags;
15663 bool log_verbose = false;
15664 struct lpfc_vport *port_iterator;
15666 /* Don't dump messages if we explicitly set log_verbose for the
15667 * physical port or any vport.
15669 if (phba->cfg_log_verbose)
15672 spin_lock_irqsave(&phba->port_list_lock, iflags);
15673 list_for_each_entry(port_iterator, &phba->port_list, listentry) {
15674 if (port_iterator->load_flag & FC_UNLOADING)
15676 if (scsi_host_get(lpfc_shost_from_vport(port_iterator))) {
15677 if (port_iterator->cfg_log_verbose)
15678 log_verbose = true;
15680 scsi_host_put(lpfc_shost_from_vport(port_iterator));
15683 spin_unlock_irqrestore(&phba->port_list_lock,
15689 spin_unlock_irqrestore(&phba->port_list_lock, iflags);
15691 if (atomic_cmpxchg(&phba->dbg_log_dmping, 0, 1) != 0)
15694 start_idx = (unsigned int)atomic_read(&phba->dbg_log_idx) % DBG_LOG_SZ;
15695 dbg_cnt = (unsigned int)atomic_read(&phba->dbg_log_cnt);
15698 temp_idx = start_idx;
15699 if (dbg_cnt >= DBG_LOG_SZ) {
15700 dbg_cnt = DBG_LOG_SZ;
15703 if ((start_idx + dbg_cnt) > (DBG_LOG_SZ - 1)) {
15704 temp_idx = (start_idx + dbg_cnt) % DBG_LOG_SZ;
15706 if (start_idx < dbg_cnt)
15707 start_idx = DBG_LOG_SZ - (dbg_cnt - start_idx);
15709 start_idx -= dbg_cnt;
15712 dev_info(&phba->pcidev->dev, "start %d end %d cnt %d\n",
15713 start_idx, temp_idx, dbg_cnt);
15715 for (i = 0; i < dbg_cnt; i++) {
15716 if ((start_idx + i) < DBG_LOG_SZ)
15717 temp_idx = (start_idx + i) % DBG_LOG_SZ;
15720 rem_nsec = do_div(phba->dbg_log[temp_idx].t_ns, NSEC_PER_SEC);
15721 dev_info(&phba->pcidev->dev, "%d: [%5lu.%06lu] %s",
15723 (unsigned long)phba->dbg_log[temp_idx].t_ns,
15725 phba->dbg_log[temp_idx].log);
15728 atomic_set(&phba->dbg_log_cnt, 0);
15729 atomic_set(&phba->dbg_log_dmping, 0);
15733 void lpfc_dbg_print(struct lpfc_hba *phba, const char *fmt, ...)
15737 int dbg_dmping = atomic_read(&phba->dbg_log_dmping);
15738 struct va_format vaf;
15741 va_start(args, fmt);
15742 if (unlikely(dbg_dmping)) {
15745 dev_info(&phba->pcidev->dev, "%pV", &vaf);
15749 idx = (unsigned int)atomic_fetch_add(1, &phba->dbg_log_idx) %
15752 atomic_inc(&phba->dbg_log_cnt);
15754 vscnprintf(phba->dbg_log[idx].log,
15755 sizeof(phba->dbg_log[idx].log), fmt, args);
15758 phba->dbg_log[idx].t_ns = local_clock();
15762 * lpfc_exit - lpfc module removal routine
15764 * This routine is invoked when the lpfc module is removed from the kernel.
15765 * The special kernel macro module_exit() is used to indicate the role of
15766 * this routine to the kernel as lpfc module exit point.
15771 misc_deregister(&lpfc_mgmt_dev);
15772 pci_unregister_driver(&lpfc_driver);
15773 cpuhp_remove_multi_state(lpfc_cpuhp_state);
15774 fc_release_transport(lpfc_transport_template);
15775 fc_release_transport(lpfc_vport_transport_template);
15776 idr_destroy(&lpfc_hba_index);
15779 module_init(lpfc_init);
15780 module_exit(lpfc_exit);
15781 MODULE_LICENSE("GPL");
15782 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
15783 MODULE_AUTHOR("Broadcom");
15784 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);