1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2015 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/delay.h>
24 #include <linux/dma-mapping.h>
25 #include <linux/idr.h>
26 #include <linux/interrupt.h>
27 #include <linux/module.h>
28 #include <linux/kthread.h>
29 #include <linux/pci.h>
30 #include <linux/spinlock.h>
31 #include <linux/ctype.h>
32 #include <linux/aer.h>
33 #include <linux/slab.h>
34 #include <linux/firmware.h>
35 #include <linux/miscdevice.h>
36 #include <linux/percpu.h>
38 #include <scsi/scsi.h>
39 #include <scsi/scsi_device.h>
40 #include <scsi/scsi_host.h>
41 #include <scsi/scsi_transport_fc.h>
46 #include "lpfc_sli4.h"
48 #include "lpfc_disc.h"
49 #include "lpfc_scsi.h"
51 #include "lpfc_logmsg.h"
52 #include "lpfc_crtn.h"
53 #include "lpfc_vport.h"
54 #include "lpfc_version.h"
57 unsigned long _dump_buf_data_order;
59 unsigned long _dump_buf_dif_order;
60 spinlock_t _dump_buf_lock;
62 /* Used when mapping IRQ vectors in a driver centric manner */
63 uint16_t *lpfc_used_cpu;
64 uint32_t lpfc_present_cpu;
66 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
67 static int lpfc_post_rcv_buf(struct lpfc_hba *);
68 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
69 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
70 static int lpfc_setup_endian_order(struct lpfc_hba *);
71 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
72 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
73 static void lpfc_init_sgl_list(struct lpfc_hba *);
74 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
75 static void lpfc_free_active_sgl(struct lpfc_hba *);
76 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
77 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
78 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
79 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
80 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
81 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
82 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
83 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
85 static struct scsi_transport_template *lpfc_transport_template = NULL;
86 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
87 static DEFINE_IDR(lpfc_hba_index);
90 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
91 * @phba: pointer to lpfc hba data structure.
93 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
94 * mailbox command. It retrieves the revision information from the HBA and
95 * collects the Vital Product Data (VPD) about the HBA for preparing the
96 * configuration of the HBA.
100 * -ERESTART - requests the SLI layer to reset the HBA and try again.
101 * Any other value - indicates an error.
104 lpfc_config_port_prep(struct lpfc_hba *phba)
106 lpfc_vpd_t *vp = &phba->vpd;
110 char *lpfc_vpd_data = NULL;
112 static char licensed[56] =
113 "key unlock for use with gnu public licensed code only\0";
114 static int init_key = 1;
116 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
118 phba->link_state = LPFC_HBA_ERROR;
123 phba->link_state = LPFC_INIT_MBX_CMDS;
125 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
127 uint32_t *ptext = (uint32_t *) licensed;
129 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
130 *ptext = cpu_to_be32(*ptext);
134 lpfc_read_nv(phba, pmb);
135 memset((char*)mb->un.varRDnvp.rsvd3, 0,
136 sizeof (mb->un.varRDnvp.rsvd3));
137 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
140 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
142 if (rc != MBX_SUCCESS) {
143 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
144 "0324 Config Port initialization "
145 "error, mbxCmd x%x READ_NVPARM, "
147 mb->mbxCommand, mb->mbxStatus);
148 mempool_free(pmb, phba->mbox_mem_pool);
151 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
153 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
157 phba->sli3_options = 0x0;
159 /* Setup and issue mailbox READ REV command */
160 lpfc_read_rev(phba, pmb);
161 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
162 if (rc != MBX_SUCCESS) {
163 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
164 "0439 Adapter failed to init, mbxCmd x%x "
165 "READ_REV, mbxStatus x%x\n",
166 mb->mbxCommand, mb->mbxStatus);
167 mempool_free( pmb, phba->mbox_mem_pool);
173 * The value of rr must be 1 since the driver set the cv field to 1.
174 * This setting requires the FW to set all revision fields.
176 if (mb->un.varRdRev.rr == 0) {
178 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
179 "0440 Adapter failed to init, READ_REV has "
180 "missing revision information.\n");
181 mempool_free(pmb, phba->mbox_mem_pool);
185 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
186 mempool_free(pmb, phba->mbox_mem_pool);
190 /* Save information as VPD data */
192 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
193 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
194 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
195 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
196 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
197 vp->rev.biuRev = mb->un.varRdRev.biuRev;
198 vp->rev.smRev = mb->un.varRdRev.smRev;
199 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
200 vp->rev.endecRev = mb->un.varRdRev.endecRev;
201 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
202 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
203 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
204 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
205 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
206 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
208 /* If the sli feature level is less then 9, we must
209 * tear down all RPIs and VPIs on link down if NPIV
212 if (vp->rev.feaLevelHigh < 9)
213 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
215 if (lpfc_is_LC_HBA(phba->pcidev->device))
216 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
217 sizeof (phba->RandomData));
219 /* Get adapter VPD information */
220 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
224 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
225 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
227 if (rc != MBX_SUCCESS) {
228 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
229 "0441 VPD not present on adapter, "
230 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
231 mb->mbxCommand, mb->mbxStatus);
232 mb->un.varDmp.word_cnt = 0;
234 /* dump mem may return a zero when finished or we got a
235 * mailbox error, either way we are done.
237 if (mb->un.varDmp.word_cnt == 0)
239 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
240 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
241 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
242 lpfc_vpd_data + offset,
243 mb->un.varDmp.word_cnt);
244 offset += mb->un.varDmp.word_cnt;
245 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
246 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
248 kfree(lpfc_vpd_data);
250 mempool_free(pmb, phba->mbox_mem_pool);
255 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
256 * @phba: pointer to lpfc hba data structure.
257 * @pmboxq: pointer to the driver internal queue element for mailbox command.
259 * This is the completion handler for driver's configuring asynchronous event
260 * mailbox command to the device. If the mailbox command returns successfully,
261 * it will set internal async event support flag to 1; otherwise, it will
262 * set internal async event support flag to 0.
265 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
267 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
268 phba->temp_sensor_support = 1;
270 phba->temp_sensor_support = 0;
271 mempool_free(pmboxq, phba->mbox_mem_pool);
276 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
277 * @phba: pointer to lpfc hba data structure.
278 * @pmboxq: pointer to the driver internal queue element for mailbox command.
280 * This is the completion handler for dump mailbox command for getting
281 * wake up parameters. When this command complete, the response contain
282 * Option rom version of the HBA. This function translate the version number
283 * into a human readable string and store it in OptionROMVersion.
286 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
289 uint32_t prog_id_word;
291 /* character array used for decoding dist type. */
292 char dist_char[] = "nabx";
294 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
295 mempool_free(pmboxq, phba->mbox_mem_pool);
299 prg = (struct prog_id *) &prog_id_word;
301 /* word 7 contain option rom version */
302 prog_id_word = pmboxq->u.mb.un.varWords[7];
304 /* Decode the Option rom version word to a readable string */
306 dist = dist_char[prg->dist];
308 if ((prg->dist == 3) && (prg->num == 0))
309 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
310 prg->ver, prg->rev, prg->lev);
312 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
313 prg->ver, prg->rev, prg->lev,
315 mempool_free(pmboxq, phba->mbox_mem_pool);
320 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
321 * cfg_soft_wwnn, cfg_soft_wwpn
322 * @vport: pointer to lpfc vport data structure.
329 lpfc_update_vport_wwn(struct lpfc_vport *vport)
331 /* If the soft name exists then update it using the service params */
332 if (vport->phba->cfg_soft_wwnn)
333 u64_to_wwn(vport->phba->cfg_soft_wwnn,
334 vport->fc_sparam.nodeName.u.wwn);
335 if (vport->phba->cfg_soft_wwpn)
336 u64_to_wwn(vport->phba->cfg_soft_wwpn,
337 vport->fc_sparam.portName.u.wwn);
340 * If the name is empty or there exists a soft name
341 * then copy the service params name, otherwise use the fc name
343 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
344 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
345 sizeof(struct lpfc_name));
347 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
348 sizeof(struct lpfc_name));
350 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
351 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
352 sizeof(struct lpfc_name));
354 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
355 sizeof(struct lpfc_name));
359 * lpfc_config_port_post - Perform lpfc initialization after config port
360 * @phba: pointer to lpfc hba data structure.
362 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
363 * command call. It performs all internal resource and state setups on the
364 * port: post IOCB buffers, enable appropriate host interrupt attentions,
365 * ELS ring timers, etc.
369 * Any other value - error.
372 lpfc_config_port_post(struct lpfc_hba *phba)
374 struct lpfc_vport *vport = phba->pport;
375 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
378 struct lpfc_dmabuf *mp;
379 struct lpfc_sli *psli = &phba->sli;
380 uint32_t status, timeout;
384 spin_lock_irq(&phba->hbalock);
386 * If the Config port completed correctly the HBA is not
387 * over heated any more.
389 if (phba->over_temp_state == HBA_OVER_TEMP)
390 phba->over_temp_state = HBA_NORMAL_TEMP;
391 spin_unlock_irq(&phba->hbalock);
393 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
395 phba->link_state = LPFC_HBA_ERROR;
400 /* Get login parameters for NID. */
401 rc = lpfc_read_sparam(phba, pmb, 0);
403 mempool_free(pmb, phba->mbox_mem_pool);
408 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
409 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
410 "0448 Adapter failed init, mbxCmd x%x "
411 "READ_SPARM mbxStatus x%x\n",
412 mb->mbxCommand, mb->mbxStatus);
413 phba->link_state = LPFC_HBA_ERROR;
414 mp = (struct lpfc_dmabuf *) pmb->context1;
415 mempool_free(pmb, phba->mbox_mem_pool);
416 lpfc_mbuf_free(phba, mp->virt, mp->phys);
421 mp = (struct lpfc_dmabuf *) pmb->context1;
423 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
424 lpfc_mbuf_free(phba, mp->virt, mp->phys);
426 pmb->context1 = NULL;
427 lpfc_update_vport_wwn(vport);
429 /* Update the fc_host data structures with new wwn. */
430 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
431 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
432 fc_host_max_npiv_vports(shost) = phba->max_vpi;
434 /* If no serial number in VPD data, use low 6 bytes of WWNN */
435 /* This should be consolidated into parse_vpd ? - mr */
436 if (phba->SerialNumber[0] == 0) {
439 outptr = &vport->fc_nodename.u.s.IEEE[0];
440 for (i = 0; i < 12; i++) {
442 j = ((status & 0xf0) >> 4);
444 phba->SerialNumber[i] =
445 (char)((uint8_t) 0x30 + (uint8_t) j);
447 phba->SerialNumber[i] =
448 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
452 phba->SerialNumber[i] =
453 (char)((uint8_t) 0x30 + (uint8_t) j);
455 phba->SerialNumber[i] =
456 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
460 lpfc_read_config(phba, pmb);
462 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
463 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
464 "0453 Adapter failed to init, mbxCmd x%x "
465 "READ_CONFIG, mbxStatus x%x\n",
466 mb->mbxCommand, mb->mbxStatus);
467 phba->link_state = LPFC_HBA_ERROR;
468 mempool_free( pmb, phba->mbox_mem_pool);
472 /* Check if the port is disabled */
473 lpfc_sli_read_link_ste(phba);
475 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
476 i = (mb->un.varRdConfig.max_xri + 1);
477 if (phba->cfg_hba_queue_depth > i) {
478 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
479 "3359 HBA queue depth changed from %d to %d\n",
480 phba->cfg_hba_queue_depth, i);
481 phba->cfg_hba_queue_depth = i;
484 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
485 i = (mb->un.varRdConfig.max_xri >> 3);
486 if (phba->pport->cfg_lun_queue_depth > i) {
487 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
488 "3360 LUN queue depth changed from %d to %d\n",
489 phba->pport->cfg_lun_queue_depth, i);
490 phba->pport->cfg_lun_queue_depth = i;
493 phba->lmt = mb->un.varRdConfig.lmt;
495 /* Get the default values for Model Name and Description */
496 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
498 phba->link_state = LPFC_LINK_DOWN;
500 /* Only process IOCBs on ELS ring till hba_state is READY */
501 if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
502 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
503 if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
504 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
505 if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
506 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
508 /* Post receive buffers for desired rings */
509 if (phba->sli_rev != 3)
510 lpfc_post_rcv_buf(phba);
513 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
515 if (phba->intr_type == MSIX) {
516 rc = lpfc_config_msi(phba, pmb);
518 mempool_free(pmb, phba->mbox_mem_pool);
521 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
522 if (rc != MBX_SUCCESS) {
523 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
524 "0352 Config MSI mailbox command "
525 "failed, mbxCmd x%x, mbxStatus x%x\n",
526 pmb->u.mb.mbxCommand,
527 pmb->u.mb.mbxStatus);
528 mempool_free(pmb, phba->mbox_mem_pool);
533 spin_lock_irq(&phba->hbalock);
534 /* Initialize ERATT handling flag */
535 phba->hba_flag &= ~HBA_ERATT_HANDLED;
537 /* Enable appropriate host interrupts */
538 if (lpfc_readl(phba->HCregaddr, &status)) {
539 spin_unlock_irq(&phba->hbalock);
542 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
543 if (psli->num_rings > 0)
544 status |= HC_R0INT_ENA;
545 if (psli->num_rings > 1)
546 status |= HC_R1INT_ENA;
547 if (psli->num_rings > 2)
548 status |= HC_R2INT_ENA;
549 if (psli->num_rings > 3)
550 status |= HC_R3INT_ENA;
552 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
553 (phba->cfg_poll & DISABLE_FCP_RING_INT))
554 status &= ~(HC_R0INT_ENA);
556 writel(status, phba->HCregaddr);
557 readl(phba->HCregaddr); /* flush */
558 spin_unlock_irq(&phba->hbalock);
560 /* Set up ring-0 (ELS) timer */
561 timeout = phba->fc_ratov * 2;
562 mod_timer(&vport->els_tmofunc,
563 jiffies + msecs_to_jiffies(1000 * timeout));
564 /* Set up heart beat (HB) timer */
565 mod_timer(&phba->hb_tmofunc,
566 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
567 phba->hb_outstanding = 0;
568 phba->last_completion_time = jiffies;
569 /* Set up error attention (ERATT) polling timer */
570 mod_timer(&phba->eratt_poll,
571 jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
573 if (phba->hba_flag & LINK_DISABLED) {
574 lpfc_printf_log(phba,
576 "2598 Adapter Link is disabled.\n");
577 lpfc_down_link(phba, pmb);
578 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
579 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
580 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
581 lpfc_printf_log(phba,
583 "2599 Adapter failed to issue DOWN_LINK"
584 " mbox command rc 0x%x\n", rc);
586 mempool_free(pmb, phba->mbox_mem_pool);
589 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
590 mempool_free(pmb, phba->mbox_mem_pool);
591 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
595 /* MBOX buffer will be freed in mbox compl */
596 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
598 phba->link_state = LPFC_HBA_ERROR;
602 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
603 pmb->mbox_cmpl = lpfc_config_async_cmpl;
604 pmb->vport = phba->pport;
605 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
607 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
608 lpfc_printf_log(phba,
611 "0456 Adapter failed to issue "
612 "ASYNCEVT_ENABLE mbox status x%x\n",
614 mempool_free(pmb, phba->mbox_mem_pool);
617 /* Get Option rom version */
618 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
620 phba->link_state = LPFC_HBA_ERROR;
624 lpfc_dump_wakeup_param(phba, pmb);
625 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
626 pmb->vport = phba->pport;
627 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
629 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
630 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
631 "to get Option ROM version status x%x\n", rc);
632 mempool_free(pmb, phba->mbox_mem_pool);
639 * lpfc_hba_init_link - Initialize the FC link
640 * @phba: pointer to lpfc hba data structure.
641 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
643 * This routine will issue the INIT_LINK mailbox command call.
644 * It is available to other drivers through the lpfc_hba data
645 * structure for use as a delayed link up mechanism with the
646 * module parameter lpfc_suppress_link_up.
650 * Any other value - error
653 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
655 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
659 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
660 * @phba: pointer to lpfc hba data structure.
661 * @fc_topology: desired fc topology.
662 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
664 * This routine will issue the INIT_LINK mailbox command call.
665 * It is available to other drivers through the lpfc_hba data
666 * structure for use as a delayed link up mechanism with the
667 * module parameter lpfc_suppress_link_up.
671 * Any other value - error
674 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
677 struct lpfc_vport *vport = phba->pport;
682 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
684 phba->link_state = LPFC_HBA_ERROR;
690 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
691 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
692 !(phba->lmt & LMT_1Gb)) ||
693 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
694 !(phba->lmt & LMT_2Gb)) ||
695 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
696 !(phba->lmt & LMT_4Gb)) ||
697 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
698 !(phba->lmt & LMT_8Gb)) ||
699 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
700 !(phba->lmt & LMT_10Gb)) ||
701 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
702 !(phba->lmt & LMT_16Gb))) {
703 /* Reset link speed to auto */
704 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
705 "1302 Invalid speed for this board:%d "
706 "Reset link speed to auto.\n",
707 phba->cfg_link_speed);
708 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
710 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
711 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
712 if (phba->sli_rev < LPFC_SLI_REV4)
713 lpfc_set_loopback_flag(phba);
714 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
715 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
716 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
717 "0498 Adapter failed to init, mbxCmd x%x "
718 "INIT_LINK, mbxStatus x%x\n",
719 mb->mbxCommand, mb->mbxStatus);
720 if (phba->sli_rev <= LPFC_SLI_REV3) {
721 /* Clear all interrupt enable conditions */
722 writel(0, phba->HCregaddr);
723 readl(phba->HCregaddr); /* flush */
724 /* Clear all pending interrupts */
725 writel(0xffffffff, phba->HAregaddr);
726 readl(phba->HAregaddr); /* flush */
728 phba->link_state = LPFC_HBA_ERROR;
729 if (rc != MBX_BUSY || flag == MBX_POLL)
730 mempool_free(pmb, phba->mbox_mem_pool);
733 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
734 if (flag == MBX_POLL)
735 mempool_free(pmb, phba->mbox_mem_pool);
741 * lpfc_hba_down_link - this routine downs the FC link
742 * @phba: pointer to lpfc hba data structure.
743 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
745 * This routine will issue the DOWN_LINK mailbox command call.
746 * It is available to other drivers through the lpfc_hba data
747 * structure for use to stop the link.
751 * Any other value - error
754 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
759 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
761 phba->link_state = LPFC_HBA_ERROR;
765 lpfc_printf_log(phba,
767 "0491 Adapter Link is disabled.\n");
768 lpfc_down_link(phba, pmb);
769 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
770 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
771 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
772 lpfc_printf_log(phba,
774 "2522 Adapter failed to issue DOWN_LINK"
775 " mbox command rc 0x%x\n", rc);
777 mempool_free(pmb, phba->mbox_mem_pool);
780 if (flag == MBX_POLL)
781 mempool_free(pmb, phba->mbox_mem_pool);
787 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
788 * @phba: pointer to lpfc HBA data structure.
790 * This routine will do LPFC uninitialization before the HBA is reset when
791 * bringing down the SLI Layer.
795 * Any other value - error.
798 lpfc_hba_down_prep(struct lpfc_hba *phba)
800 struct lpfc_vport **vports;
803 if (phba->sli_rev <= LPFC_SLI_REV3) {
804 /* Disable interrupts */
805 writel(0, phba->HCregaddr);
806 readl(phba->HCregaddr); /* flush */
809 if (phba->pport->load_flag & FC_UNLOADING)
810 lpfc_cleanup_discovery_resources(phba->pport);
812 vports = lpfc_create_vport_work_array(phba);
814 for (i = 0; i <= phba->max_vports &&
815 vports[i] != NULL; i++)
816 lpfc_cleanup_discovery_resources(vports[i]);
817 lpfc_destroy_vport_work_array(phba, vports);
823 * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
824 * rspiocb which got deferred
826 * @phba: pointer to lpfc HBA data structure.
828 * This routine will cleanup completed slow path events after HBA is reset
829 * when bringing down the SLI Layer.
836 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
838 struct lpfc_iocbq *rspiocbq;
839 struct hbq_dmabuf *dmabuf;
840 struct lpfc_cq_event *cq_event;
842 spin_lock_irq(&phba->hbalock);
843 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
844 spin_unlock_irq(&phba->hbalock);
846 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
847 /* Get the response iocb from the head of work queue */
848 spin_lock_irq(&phba->hbalock);
849 list_remove_head(&phba->sli4_hba.sp_queue_event,
850 cq_event, struct lpfc_cq_event, list);
851 spin_unlock_irq(&phba->hbalock);
853 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
854 case CQE_CODE_COMPL_WQE:
855 rspiocbq = container_of(cq_event, struct lpfc_iocbq,
857 lpfc_sli_release_iocbq(phba, rspiocbq);
859 case CQE_CODE_RECEIVE:
860 case CQE_CODE_RECEIVE_V1:
861 dmabuf = container_of(cq_event, struct hbq_dmabuf,
863 lpfc_in_buf_free(phba, &dmabuf->dbuf);
869 * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
870 * @phba: pointer to lpfc HBA data structure.
872 * This routine will cleanup posted ELS buffers after the HBA is reset
873 * when bringing down the SLI Layer.
880 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
882 struct lpfc_sli *psli = &phba->sli;
883 struct lpfc_sli_ring *pring;
884 struct lpfc_dmabuf *mp, *next_mp;
888 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
889 lpfc_sli_hbqbuf_free_all(phba);
891 /* Cleanup preposted buffers on the ELS ring */
892 pring = &psli->ring[LPFC_ELS_RING];
893 spin_lock_irq(&phba->hbalock);
894 list_splice_init(&pring->postbufq, &buflist);
895 spin_unlock_irq(&phba->hbalock);
898 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
901 lpfc_mbuf_free(phba, mp->virt, mp->phys);
905 spin_lock_irq(&phba->hbalock);
906 pring->postbufq_cnt -= count;
907 spin_unlock_irq(&phba->hbalock);
912 * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
913 * @phba: pointer to lpfc HBA data structure.
915 * This routine will cleanup the txcmplq after the HBA is reset when bringing
916 * down the SLI Layer.
922 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
924 struct lpfc_sli *psli = &phba->sli;
925 struct lpfc_sli_ring *pring;
926 LIST_HEAD(completions);
929 for (i = 0; i < psli->num_rings; i++) {
930 pring = &psli->ring[i];
931 if (phba->sli_rev >= LPFC_SLI_REV4)
932 spin_lock_irq(&pring->ring_lock);
934 spin_lock_irq(&phba->hbalock);
935 /* At this point in time the HBA is either reset or DOA. Either
936 * way, nothing should be on txcmplq as it will NEVER complete.
938 list_splice_init(&pring->txcmplq, &completions);
939 pring->txcmplq_cnt = 0;
941 if (phba->sli_rev >= LPFC_SLI_REV4)
942 spin_unlock_irq(&pring->ring_lock);
944 spin_unlock_irq(&phba->hbalock);
946 /* Cancel all the IOCBs from the completions list */
947 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
949 lpfc_sli_abort_iocb_ring(phba, pring);
954 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
956 * @phba: pointer to lpfc HBA data structure.
958 * This routine will do uninitialization after the HBA is reset when bring
959 * down the SLI Layer.
963 * Any other value - error.
966 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
968 lpfc_hba_free_post_buf(phba);
969 lpfc_hba_clean_txcmplq(phba);
974 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
975 * @phba: pointer to lpfc HBA data structure.
977 * This routine will do uninitialization after the HBA is reset when bring
978 * down the SLI Layer.
982 * Any other value - error.
985 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
987 struct lpfc_scsi_buf *psb, *psb_next;
989 unsigned long iflag = 0;
990 struct lpfc_sglq *sglq_entry = NULL;
991 struct lpfc_sli *psli = &phba->sli;
992 struct lpfc_sli_ring *pring;
994 lpfc_hba_free_post_buf(phba);
995 lpfc_hba_clean_txcmplq(phba);
996 pring = &psli->ring[LPFC_ELS_RING];
998 /* At this point in time the HBA is either reset or DOA. Either
999 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1000 * on the lpfc_sgl_list so that it can either be freed if the
1001 * driver is unloading or reposted if the driver is restarting
1004 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
1006 /* abts_sgl_list_lock required because worker thread uses this
1009 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
1010 list_for_each_entry(sglq_entry,
1011 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1012 sglq_entry->state = SGL_FREED;
1014 spin_lock(&pring->ring_lock);
1015 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1016 &phba->sli4_hba.lpfc_sgl_list);
1017 spin_unlock(&pring->ring_lock);
1018 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
1019 /* abts_scsi_buf_list_lock required because worker thread uses this
1022 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1023 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1025 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1026 spin_unlock_irq(&phba->hbalock);
1028 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1030 psb->status = IOSTAT_SUCCESS;
1032 spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1033 list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1034 spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1036 lpfc_sli4_free_sp_events(phba);
1041 * lpfc_hba_down_post - Wrapper func for hba down post routine
1042 * @phba: pointer to lpfc HBA data structure.
1044 * This routine wraps the actual SLI3 or SLI4 routine for performing
1045 * uninitialization after the HBA is reset when bring down the SLI Layer.
1049 * Any other value - error.
1052 lpfc_hba_down_post(struct lpfc_hba *phba)
1054 return (*phba->lpfc_hba_down_post)(phba);
1058 * lpfc_hb_timeout - The HBA-timer timeout handler
1059 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1061 * This is the HBA-timer timeout handler registered to the lpfc driver. When
1062 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1063 * work-port-events bitmap and the worker thread is notified. This timeout
1064 * event will be used by the worker thread to invoke the actual timeout
1065 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1066 * be performed in the timeout handler and the HBA timeout event bit shall
1067 * be cleared by the worker thread after it has taken the event bitmap out.
1070 lpfc_hb_timeout(unsigned long ptr)
1072 struct lpfc_hba *phba;
1073 uint32_t tmo_posted;
1074 unsigned long iflag;
1076 phba = (struct lpfc_hba *)ptr;
1078 /* Check for heart beat timeout conditions */
1079 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1080 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1082 phba->pport->work_port_events |= WORKER_HB_TMO;
1083 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1085 /* Tell the worker thread there is work to do */
1087 lpfc_worker_wake_up(phba);
1092 * lpfc_rrq_timeout - The RRQ-timer timeout handler
1093 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1095 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1096 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1097 * work-port-events bitmap and the worker thread is notified. This timeout
1098 * event will be used by the worker thread to invoke the actual timeout
1099 * handler routine, lpfc_rrq_handler. Any periodical operations will
1100 * be performed in the timeout handler and the RRQ timeout event bit shall
1101 * be cleared by the worker thread after it has taken the event bitmap out.
1104 lpfc_rrq_timeout(unsigned long ptr)
1106 struct lpfc_hba *phba;
1107 unsigned long iflag;
1109 phba = (struct lpfc_hba *)ptr;
1110 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1111 if (!(phba->pport->load_flag & FC_UNLOADING))
1112 phba->hba_flag |= HBA_RRQ_ACTIVE;
1114 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1115 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1117 if (!(phba->pport->load_flag & FC_UNLOADING))
1118 lpfc_worker_wake_up(phba);
1122 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1123 * @phba: pointer to lpfc hba data structure.
1124 * @pmboxq: pointer to the driver internal queue element for mailbox command.
1126 * This is the callback function to the lpfc heart-beat mailbox command.
1127 * If configured, the lpfc driver issues the heart-beat mailbox command to
1128 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1129 * heart-beat mailbox command is issued, the driver shall set up heart-beat
1130 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1131 * heart-beat outstanding state. Once the mailbox command comes back and
1132 * no error conditions detected, the heart-beat mailbox command timer is
1133 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1134 * state is cleared for the next heart-beat. If the timer expired with the
1135 * heart-beat outstanding state set, the driver will put the HBA offline.
1138 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1140 unsigned long drvr_flag;
1142 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1143 phba->hb_outstanding = 0;
1144 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1146 /* Check and reset heart-beat timer is necessary */
1147 mempool_free(pmboxq, phba->mbox_mem_pool);
1148 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1149 !(phba->link_state == LPFC_HBA_ERROR) &&
1150 !(phba->pport->load_flag & FC_UNLOADING))
1151 mod_timer(&phba->hb_tmofunc,
1153 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1158 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1159 * @phba: pointer to lpfc hba data structure.
1161 * This is the actual HBA-timer timeout handler to be invoked by the worker
1162 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1163 * handler performs any periodic operations needed for the device. If such
1164 * periodic event has already been attended to either in the interrupt handler
1165 * or by processing slow-ring or fast-ring events within the HBA-timer
1166 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1167 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1168 * is configured and there is no heart-beat mailbox command outstanding, a
1169 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1170 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1174 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1176 struct lpfc_vport **vports;
1177 LPFC_MBOXQ_t *pmboxq;
1178 struct lpfc_dmabuf *buf_ptr;
1180 struct lpfc_sli *psli = &phba->sli;
1181 LIST_HEAD(completions);
1183 vports = lpfc_create_vport_work_array(phba);
1185 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1186 lpfc_rcv_seq_check_edtov(vports[i]);
1187 lpfc_destroy_vport_work_array(phba, vports);
1189 if ((phba->link_state == LPFC_HBA_ERROR) ||
1190 (phba->pport->load_flag & FC_UNLOADING) ||
1191 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1194 spin_lock_irq(&phba->pport->work_port_lock);
1196 if (time_after(phba->last_completion_time +
1197 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1199 spin_unlock_irq(&phba->pport->work_port_lock);
1200 if (!phba->hb_outstanding)
1201 mod_timer(&phba->hb_tmofunc,
1203 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1205 mod_timer(&phba->hb_tmofunc,
1207 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1210 spin_unlock_irq(&phba->pport->work_port_lock);
1212 if (phba->elsbuf_cnt &&
1213 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1214 spin_lock_irq(&phba->hbalock);
1215 list_splice_init(&phba->elsbuf, &completions);
1216 phba->elsbuf_cnt = 0;
1217 phba->elsbuf_prev_cnt = 0;
1218 spin_unlock_irq(&phba->hbalock);
1220 while (!list_empty(&completions)) {
1221 list_remove_head(&completions, buf_ptr,
1222 struct lpfc_dmabuf, list);
1223 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1227 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1229 /* If there is no heart beat outstanding, issue a heartbeat command */
1230 if (phba->cfg_enable_hba_heartbeat) {
1231 if (!phba->hb_outstanding) {
1232 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1233 (list_empty(&psli->mboxq))) {
1234 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1237 mod_timer(&phba->hb_tmofunc,
1239 msecs_to_jiffies(1000 *
1240 LPFC_HB_MBOX_INTERVAL));
1244 lpfc_heart_beat(phba, pmboxq);
1245 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1246 pmboxq->vport = phba->pport;
1247 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1250 if (retval != MBX_BUSY &&
1251 retval != MBX_SUCCESS) {
1252 mempool_free(pmboxq,
1253 phba->mbox_mem_pool);
1254 mod_timer(&phba->hb_tmofunc,
1256 msecs_to_jiffies(1000 *
1257 LPFC_HB_MBOX_INTERVAL));
1260 phba->skipped_hb = 0;
1261 phba->hb_outstanding = 1;
1262 } else if (time_before_eq(phba->last_completion_time,
1263 phba->skipped_hb)) {
1264 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1265 "2857 Last completion time not "
1266 " updated in %d ms\n",
1267 jiffies_to_msecs(jiffies
1268 - phba->last_completion_time));
1270 phba->skipped_hb = jiffies;
1272 mod_timer(&phba->hb_tmofunc,
1274 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1278 * If heart beat timeout called with hb_outstanding set
1279 * we need to give the hb mailbox cmd a chance to
1282 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1283 "0459 Adapter heartbeat still out"
1284 "standing:last compl time was %d ms.\n",
1285 jiffies_to_msecs(jiffies
1286 - phba->last_completion_time));
1287 mod_timer(&phba->hb_tmofunc,
1289 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1295 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1296 * @phba: pointer to lpfc hba data structure.
1298 * This routine is called to bring the HBA offline when HBA hardware error
1299 * other than Port Error 6 has been detected.
1302 lpfc_offline_eratt(struct lpfc_hba *phba)
1304 struct lpfc_sli *psli = &phba->sli;
1306 spin_lock_irq(&phba->hbalock);
1307 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1308 spin_unlock_irq(&phba->hbalock);
1309 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1312 lpfc_reset_barrier(phba);
1313 spin_lock_irq(&phba->hbalock);
1314 lpfc_sli_brdreset(phba);
1315 spin_unlock_irq(&phba->hbalock);
1316 lpfc_hba_down_post(phba);
1317 lpfc_sli_brdready(phba, HS_MBRDY);
1318 lpfc_unblock_mgmt_io(phba);
1319 phba->link_state = LPFC_HBA_ERROR;
1324 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1325 * @phba: pointer to lpfc hba data structure.
1327 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1328 * other than Port Error 6 has been detected.
1331 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1333 spin_lock_irq(&phba->hbalock);
1334 phba->link_state = LPFC_HBA_ERROR;
1335 spin_unlock_irq(&phba->hbalock);
1337 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1339 lpfc_hba_down_post(phba);
1340 lpfc_unblock_mgmt_io(phba);
1344 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1345 * @phba: pointer to lpfc hba data structure.
1347 * This routine is invoked to handle the deferred HBA hardware error
1348 * conditions. This type of error is indicated by HBA by setting ER1
1349 * and another ER bit in the host status register. The driver will
1350 * wait until the ER1 bit clears before handling the error condition.
1353 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1355 uint32_t old_host_status = phba->work_hs;
1356 struct lpfc_sli *psli = &phba->sli;
1358 /* If the pci channel is offline, ignore possible errors,
1359 * since we cannot communicate with the pci card anyway.
1361 if (pci_channel_offline(phba->pcidev)) {
1362 spin_lock_irq(&phba->hbalock);
1363 phba->hba_flag &= ~DEFER_ERATT;
1364 spin_unlock_irq(&phba->hbalock);
1368 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1369 "0479 Deferred Adapter Hardware Error "
1370 "Data: x%x x%x x%x\n",
1372 phba->work_status[0], phba->work_status[1]);
1374 spin_lock_irq(&phba->hbalock);
1375 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1376 spin_unlock_irq(&phba->hbalock);
1380 * Firmware stops when it triggred erratt. That could cause the I/Os
1381 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1382 * SCSI layer retry it after re-establishing link.
1384 lpfc_sli_abort_fcp_rings(phba);
1387 * There was a firmware error. Take the hba offline and then
1388 * attempt to restart it.
1390 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1393 /* Wait for the ER1 bit to clear.*/
1394 while (phba->work_hs & HS_FFER1) {
1396 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1397 phba->work_hs = UNPLUG_ERR ;
1400 /* If driver is unloading let the worker thread continue */
1401 if (phba->pport->load_flag & FC_UNLOADING) {
1408 * This is to ptrotect against a race condition in which
1409 * first write to the host attention register clear the
1410 * host status register.
1412 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1413 phba->work_hs = old_host_status & ~HS_FFER1;
1415 spin_lock_irq(&phba->hbalock);
1416 phba->hba_flag &= ~DEFER_ERATT;
1417 spin_unlock_irq(&phba->hbalock);
1418 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1419 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1423 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1425 struct lpfc_board_event_header board_event;
1426 struct Scsi_Host *shost;
1428 board_event.event_type = FC_REG_BOARD_EVENT;
1429 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1430 shost = lpfc_shost_from_vport(phba->pport);
1431 fc_host_post_vendor_event(shost, fc_get_event_number(),
1432 sizeof(board_event),
1433 (char *) &board_event,
1438 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1439 * @phba: pointer to lpfc hba data structure.
1441 * This routine is invoked to handle the following HBA hardware error
1443 * 1 - HBA error attention interrupt
1444 * 2 - DMA ring index out of range
1445 * 3 - Mailbox command came back as unknown
1448 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1450 struct lpfc_vport *vport = phba->pport;
1451 struct lpfc_sli *psli = &phba->sli;
1452 uint32_t event_data;
1453 unsigned long temperature;
1454 struct temp_event temp_event_data;
1455 struct Scsi_Host *shost;
1457 /* If the pci channel is offline, ignore possible errors,
1458 * since we cannot communicate with the pci card anyway.
1460 if (pci_channel_offline(phba->pcidev)) {
1461 spin_lock_irq(&phba->hbalock);
1462 phba->hba_flag &= ~DEFER_ERATT;
1463 spin_unlock_irq(&phba->hbalock);
1467 /* If resets are disabled then leave the HBA alone and return */
1468 if (!phba->cfg_enable_hba_reset)
1471 /* Send an internal error event to mgmt application */
1472 lpfc_board_errevt_to_mgmt(phba);
1474 if (phba->hba_flag & DEFER_ERATT)
1475 lpfc_handle_deferred_eratt(phba);
1477 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1478 if (phba->work_hs & HS_FFER6)
1479 /* Re-establishing Link */
1480 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1481 "1301 Re-establishing Link "
1482 "Data: x%x x%x x%x\n",
1483 phba->work_hs, phba->work_status[0],
1484 phba->work_status[1]);
1485 if (phba->work_hs & HS_FFER8)
1486 /* Device Zeroization */
1487 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1488 "2861 Host Authentication device "
1489 "zeroization Data:x%x x%x x%x\n",
1490 phba->work_hs, phba->work_status[0],
1491 phba->work_status[1]);
1493 spin_lock_irq(&phba->hbalock);
1494 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1495 spin_unlock_irq(&phba->hbalock);
1498 * Firmware stops when it triggled erratt with HS_FFER6.
1499 * That could cause the I/Os dropped by the firmware.
1500 * Error iocb (I/O) on txcmplq and let the SCSI layer
1501 * retry it after re-establishing link.
1503 lpfc_sli_abort_fcp_rings(phba);
1506 * There was a firmware error. Take the hba offline and then
1507 * attempt to restart it.
1509 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1511 lpfc_sli_brdrestart(phba);
1512 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1513 lpfc_unblock_mgmt_io(phba);
1516 lpfc_unblock_mgmt_io(phba);
1517 } else if (phba->work_hs & HS_CRIT_TEMP) {
1518 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1519 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1520 temp_event_data.event_code = LPFC_CRIT_TEMP;
1521 temp_event_data.data = (uint32_t)temperature;
1523 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1524 "0406 Adapter maximum temperature exceeded "
1525 "(%ld), taking this port offline "
1526 "Data: x%x x%x x%x\n",
1527 temperature, phba->work_hs,
1528 phba->work_status[0], phba->work_status[1]);
1530 shost = lpfc_shost_from_vport(phba->pport);
1531 fc_host_post_vendor_event(shost, fc_get_event_number(),
1532 sizeof(temp_event_data),
1533 (char *) &temp_event_data,
1534 SCSI_NL_VID_TYPE_PCI
1535 | PCI_VENDOR_ID_EMULEX);
1537 spin_lock_irq(&phba->hbalock);
1538 phba->over_temp_state = HBA_OVER_TEMP;
1539 spin_unlock_irq(&phba->hbalock);
1540 lpfc_offline_eratt(phba);
1543 /* The if clause above forces this code path when the status
1544 * failure is a value other than FFER6. Do not call the offline
1545 * twice. This is the adapter hardware error path.
1547 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1548 "0457 Adapter Hardware Error "
1549 "Data: x%x x%x x%x\n",
1551 phba->work_status[0], phba->work_status[1]);
1553 event_data = FC_REG_DUMP_EVENT;
1554 shost = lpfc_shost_from_vport(vport);
1555 fc_host_post_vendor_event(shost, fc_get_event_number(),
1556 sizeof(event_data), (char *) &event_data,
1557 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1559 lpfc_offline_eratt(phba);
1565 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1566 * @phba: pointer to lpfc hba data structure.
1567 * @mbx_action: flag for mailbox shutdown action.
1569 * This routine is invoked to perform an SLI4 port PCI function reset in
1570 * response to port status register polling attention. It waits for port
1571 * status register (ERR, RDY, RN) bits before proceeding with function reset.
1572 * During this process, interrupt vectors are freed and later requested
1573 * for handling possible port resource change.
1576 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1583 * On error status condition, driver need to wait for port
1584 * ready before performing reset.
1586 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1588 /* need reset: attempt for port recovery */
1590 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1591 "2887 Reset Needed: Attempting Port "
1593 lpfc_offline_prep(phba, mbx_action);
1595 /* release interrupt for possible resource change */
1596 lpfc_sli4_disable_intr(phba);
1597 lpfc_sli_brdrestart(phba);
1598 /* request and enable interrupt */
1599 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1600 if (intr_mode == LPFC_INTR_ERROR) {
1601 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1602 "3175 Failed to enable interrupt\n");
1605 phba->intr_mode = intr_mode;
1607 rc = lpfc_online(phba);
1609 lpfc_unblock_mgmt_io(phba);
1615 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1616 * @phba: pointer to lpfc hba data structure.
1618 * This routine is invoked to handle the SLI4 HBA hardware error attention
1622 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1624 struct lpfc_vport *vport = phba->pport;
1625 uint32_t event_data;
1626 struct Scsi_Host *shost;
1628 struct lpfc_register portstat_reg = {0};
1629 uint32_t reg_err1, reg_err2;
1630 uint32_t uerrlo_reg, uemasklo_reg;
1631 uint32_t pci_rd_rc1, pci_rd_rc2;
1632 bool en_rn_msg = true;
1633 struct temp_event temp_event_data;
1636 /* If the pci channel is offline, ignore possible errors, since
1637 * we cannot communicate with the pci card anyway.
1639 if (pci_channel_offline(phba->pcidev))
1642 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1644 case LPFC_SLI_INTF_IF_TYPE_0:
1645 pci_rd_rc1 = lpfc_readl(
1646 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1648 pci_rd_rc2 = lpfc_readl(
1649 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1651 /* consider PCI bus read error as pci_channel_offline */
1652 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1654 lpfc_sli4_offline_eratt(phba);
1657 case LPFC_SLI_INTF_IF_TYPE_2:
1658 pci_rd_rc1 = lpfc_readl(
1659 phba->sli4_hba.u.if_type2.STATUSregaddr,
1660 &portstat_reg.word0);
1661 /* consider PCI bus read error as pci_channel_offline */
1662 if (pci_rd_rc1 == -EIO) {
1663 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1664 "3151 PCI bus read access failure: x%x\n",
1665 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1668 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1669 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1670 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1671 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1672 "2889 Port Overtemperature event, "
1673 "taking port offline Data: x%x x%x\n",
1674 reg_err1, reg_err2);
1676 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1677 temp_event_data.event_code = LPFC_CRIT_TEMP;
1678 temp_event_data.data = 0xFFFFFFFF;
1680 shost = lpfc_shost_from_vport(phba->pport);
1681 fc_host_post_vendor_event(shost, fc_get_event_number(),
1682 sizeof(temp_event_data),
1683 (char *)&temp_event_data,
1684 SCSI_NL_VID_TYPE_PCI
1685 | PCI_VENDOR_ID_EMULEX);
1687 spin_lock_irq(&phba->hbalock);
1688 phba->over_temp_state = HBA_OVER_TEMP;
1689 spin_unlock_irq(&phba->hbalock);
1690 lpfc_sli4_offline_eratt(phba);
1693 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1694 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1695 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1696 "3143 Port Down: Firmware Update "
1699 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1700 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1701 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1702 "3144 Port Down: Debug Dump\n");
1703 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1704 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1705 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1706 "3145 Port Down: Provisioning\n");
1708 /* If resets are disabled then leave the HBA alone and return */
1709 if (!phba->cfg_enable_hba_reset)
1712 /* Check port status register for function reset */
1713 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1716 /* don't report event on forced debug dump */
1717 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1718 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1723 /* fall through for not able to recover */
1724 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1725 "3152 Unrecoverable error, bring the port "
1727 lpfc_sli4_offline_eratt(phba);
1729 case LPFC_SLI_INTF_IF_TYPE_1:
1733 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1734 "3123 Report dump event to upper layer\n");
1735 /* Send an internal error event to mgmt application */
1736 lpfc_board_errevt_to_mgmt(phba);
1738 event_data = FC_REG_DUMP_EVENT;
1739 shost = lpfc_shost_from_vport(vport);
1740 fc_host_post_vendor_event(shost, fc_get_event_number(),
1741 sizeof(event_data), (char *) &event_data,
1742 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1746 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1747 * @phba: pointer to lpfc HBA data structure.
1749 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1750 * routine from the API jump table function pointer from the lpfc_hba struct.
1754 * Any other value - error.
1757 lpfc_handle_eratt(struct lpfc_hba *phba)
1759 (*phba->lpfc_handle_eratt)(phba);
1763 * lpfc_handle_latt - The HBA link event handler
1764 * @phba: pointer to lpfc hba data structure.
1766 * This routine is invoked from the worker thread to handle a HBA host
1767 * attention link event.
1770 lpfc_handle_latt(struct lpfc_hba *phba)
1772 struct lpfc_vport *vport = phba->pport;
1773 struct lpfc_sli *psli = &phba->sli;
1775 volatile uint32_t control;
1776 struct lpfc_dmabuf *mp;
1779 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1782 goto lpfc_handle_latt_err_exit;
1785 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1788 goto lpfc_handle_latt_free_pmb;
1791 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1794 goto lpfc_handle_latt_free_mp;
1797 /* Cleanup any outstanding ELS commands */
1798 lpfc_els_flush_all_cmd(phba);
1800 psli->slistat.link_event++;
1801 lpfc_read_topology(phba, pmb, mp);
1802 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1804 /* Block ELS IOCBs until we have processed this mbox command */
1805 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1806 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1807 if (rc == MBX_NOT_FINISHED) {
1809 goto lpfc_handle_latt_free_mbuf;
1812 /* Clear Link Attention in HA REG */
1813 spin_lock_irq(&phba->hbalock);
1814 writel(HA_LATT, phba->HAregaddr);
1815 readl(phba->HAregaddr); /* flush */
1816 spin_unlock_irq(&phba->hbalock);
1820 lpfc_handle_latt_free_mbuf:
1821 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1822 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1823 lpfc_handle_latt_free_mp:
1825 lpfc_handle_latt_free_pmb:
1826 mempool_free(pmb, phba->mbox_mem_pool);
1827 lpfc_handle_latt_err_exit:
1828 /* Enable Link attention interrupts */
1829 spin_lock_irq(&phba->hbalock);
1830 psli->sli_flag |= LPFC_PROCESS_LA;
1831 control = readl(phba->HCregaddr);
1832 control |= HC_LAINT_ENA;
1833 writel(control, phba->HCregaddr);
1834 readl(phba->HCregaddr); /* flush */
1836 /* Clear Link Attention in HA REG */
1837 writel(HA_LATT, phba->HAregaddr);
1838 readl(phba->HAregaddr); /* flush */
1839 spin_unlock_irq(&phba->hbalock);
1840 lpfc_linkdown(phba);
1841 phba->link_state = LPFC_HBA_ERROR;
1843 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1844 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1850 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1851 * @phba: pointer to lpfc hba data structure.
1852 * @vpd: pointer to the vital product data.
1853 * @len: length of the vital product data in bytes.
1855 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1856 * an array of characters. In this routine, the ModelName, ProgramType, and
1857 * ModelDesc, etc. fields of the phba data structure will be populated.
1860 * 0 - pointer to the VPD passed in is NULL
1864 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1866 uint8_t lenlo, lenhi;
1876 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1877 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1878 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1880 while (!finished && (index < (len - 4))) {
1881 switch (vpd[index]) {
1889 i = ((((unsigned short)lenhi) << 8) + lenlo);
1898 Length = ((((unsigned short)lenhi) << 8) + lenlo);
1899 if (Length > len - index)
1900 Length = len - index;
1901 while (Length > 0) {
1902 /* Look for Serial Number */
1903 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1910 phba->SerialNumber[j++] = vpd[index++];
1914 phba->SerialNumber[j] = 0;
1917 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1918 phba->vpd_flag |= VPD_MODEL_DESC;
1925 phba->ModelDesc[j++] = vpd[index++];
1929 phba->ModelDesc[j] = 0;
1932 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1933 phba->vpd_flag |= VPD_MODEL_NAME;
1940 phba->ModelName[j++] = vpd[index++];
1944 phba->ModelName[j] = 0;
1947 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1948 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1955 phba->ProgramType[j++] = vpd[index++];
1959 phba->ProgramType[j] = 0;
1962 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1963 phba->vpd_flag |= VPD_PORT;
1970 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1971 (phba->sli4_hba.pport_name_sta ==
1972 LPFC_SLI4_PPNAME_GET)) {
1976 phba->Port[j++] = vpd[index++];
1980 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1981 (phba->sli4_hba.pport_name_sta ==
1982 LPFC_SLI4_PPNAME_NON))
2009 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2010 * @phba: pointer to lpfc hba data structure.
2011 * @mdp: pointer to the data structure to hold the derived model name.
2012 * @descp: pointer to the data structure to hold the derived description.
2014 * This routine retrieves HBA's description based on its registered PCI device
2015 * ID. The @descp passed into this function points to an array of 256 chars. It
2016 * shall be returned with the model name, maximum speed, and the host bus type.
2017 * The @mdp passed into this function points to an array of 80 chars. When the
2018 * function returns, the @mdp will be filled with the model name.
2021 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2024 uint16_t dev_id = phba->pcidev->device;
2027 int oneConnect = 0; /* default is not a oneConnect */
2032 } m = {"<Unknown>", "", ""};
2034 if (mdp && mdp[0] != '\0'
2035 && descp && descp[0] != '\0')
2038 if (phba->lmt & LMT_16Gb)
2040 else if (phba->lmt & LMT_10Gb)
2042 else if (phba->lmt & LMT_8Gb)
2044 else if (phba->lmt & LMT_4Gb)
2046 else if (phba->lmt & LMT_2Gb)
2048 else if (phba->lmt & LMT_1Gb)
2056 case PCI_DEVICE_ID_FIREFLY:
2057 m = (typeof(m)){"LP6000", "PCI",
2058 "Obsolete, Unsupported Fibre Channel Adapter"};
2060 case PCI_DEVICE_ID_SUPERFLY:
2061 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2062 m = (typeof(m)){"LP7000", "PCI", ""};
2064 m = (typeof(m)){"LP7000E", "PCI", ""};
2065 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2067 case PCI_DEVICE_ID_DRAGONFLY:
2068 m = (typeof(m)){"LP8000", "PCI",
2069 "Obsolete, Unsupported Fibre Channel Adapter"};
2071 case PCI_DEVICE_ID_CENTAUR:
2072 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2073 m = (typeof(m)){"LP9002", "PCI", ""};
2075 m = (typeof(m)){"LP9000", "PCI", ""};
2076 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2078 case PCI_DEVICE_ID_RFLY:
2079 m = (typeof(m)){"LP952", "PCI",
2080 "Obsolete, Unsupported Fibre Channel Adapter"};
2082 case PCI_DEVICE_ID_PEGASUS:
2083 m = (typeof(m)){"LP9802", "PCI-X",
2084 "Obsolete, Unsupported Fibre Channel Adapter"};
2086 case PCI_DEVICE_ID_THOR:
2087 m = (typeof(m)){"LP10000", "PCI-X",
2088 "Obsolete, Unsupported Fibre Channel Adapter"};
2090 case PCI_DEVICE_ID_VIPER:
2091 m = (typeof(m)){"LPX1000", "PCI-X",
2092 "Obsolete, Unsupported Fibre Channel Adapter"};
2094 case PCI_DEVICE_ID_PFLY:
2095 m = (typeof(m)){"LP982", "PCI-X",
2096 "Obsolete, Unsupported Fibre Channel Adapter"};
2098 case PCI_DEVICE_ID_TFLY:
2099 m = (typeof(m)){"LP1050", "PCI-X",
2100 "Obsolete, Unsupported Fibre Channel Adapter"};
2102 case PCI_DEVICE_ID_HELIOS:
2103 m = (typeof(m)){"LP11000", "PCI-X2",
2104 "Obsolete, Unsupported Fibre Channel Adapter"};
2106 case PCI_DEVICE_ID_HELIOS_SCSP:
2107 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2108 "Obsolete, Unsupported Fibre Channel Adapter"};
2110 case PCI_DEVICE_ID_HELIOS_DCSP:
2111 m = (typeof(m)){"LP11002-SP", "PCI-X2",
2112 "Obsolete, Unsupported Fibre Channel Adapter"};
2114 case PCI_DEVICE_ID_NEPTUNE:
2115 m = (typeof(m)){"LPe1000", "PCIe",
2116 "Obsolete, Unsupported Fibre Channel Adapter"};
2118 case PCI_DEVICE_ID_NEPTUNE_SCSP:
2119 m = (typeof(m)){"LPe1000-SP", "PCIe",
2120 "Obsolete, Unsupported Fibre Channel Adapter"};
2122 case PCI_DEVICE_ID_NEPTUNE_DCSP:
2123 m = (typeof(m)){"LPe1002-SP", "PCIe",
2124 "Obsolete, Unsupported Fibre Channel Adapter"};
2126 case PCI_DEVICE_ID_BMID:
2127 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2129 case PCI_DEVICE_ID_BSMB:
2130 m = (typeof(m)){"LP111", "PCI-X2",
2131 "Obsolete, Unsupported Fibre Channel Adapter"};
2133 case PCI_DEVICE_ID_ZEPHYR:
2134 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2136 case PCI_DEVICE_ID_ZEPHYR_SCSP:
2137 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2139 case PCI_DEVICE_ID_ZEPHYR_DCSP:
2140 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2143 case PCI_DEVICE_ID_ZMID:
2144 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2146 case PCI_DEVICE_ID_ZSMB:
2147 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2149 case PCI_DEVICE_ID_LP101:
2150 m = (typeof(m)){"LP101", "PCI-X",
2151 "Obsolete, Unsupported Fibre Channel Adapter"};
2153 case PCI_DEVICE_ID_LP10000S:
2154 m = (typeof(m)){"LP10000-S", "PCI",
2155 "Obsolete, Unsupported Fibre Channel Adapter"};
2157 case PCI_DEVICE_ID_LP11000S:
2158 m = (typeof(m)){"LP11000-S", "PCI-X2",
2159 "Obsolete, Unsupported Fibre Channel Adapter"};
2161 case PCI_DEVICE_ID_LPE11000S:
2162 m = (typeof(m)){"LPe11000-S", "PCIe",
2163 "Obsolete, Unsupported Fibre Channel Adapter"};
2165 case PCI_DEVICE_ID_SAT:
2166 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2168 case PCI_DEVICE_ID_SAT_MID:
2169 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2171 case PCI_DEVICE_ID_SAT_SMB:
2172 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2174 case PCI_DEVICE_ID_SAT_DCSP:
2175 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2177 case PCI_DEVICE_ID_SAT_SCSP:
2178 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2180 case PCI_DEVICE_ID_SAT_S:
2181 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2183 case PCI_DEVICE_ID_HORNET:
2184 m = (typeof(m)){"LP21000", "PCIe",
2185 "Obsolete, Unsupported FCoE Adapter"};
2188 case PCI_DEVICE_ID_PROTEUS_VF:
2189 m = (typeof(m)){"LPev12000", "PCIe IOV",
2190 "Obsolete, Unsupported Fibre Channel Adapter"};
2192 case PCI_DEVICE_ID_PROTEUS_PF:
2193 m = (typeof(m)){"LPev12000", "PCIe IOV",
2194 "Obsolete, Unsupported Fibre Channel Adapter"};
2196 case PCI_DEVICE_ID_PROTEUS_S:
2197 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2198 "Obsolete, Unsupported Fibre Channel Adapter"};
2200 case PCI_DEVICE_ID_TIGERSHARK:
2202 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2204 case PCI_DEVICE_ID_TOMCAT:
2206 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2208 case PCI_DEVICE_ID_FALCON:
2209 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2210 "EmulexSecure Fibre"};
2212 case PCI_DEVICE_ID_BALIUS:
2213 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2214 "Obsolete, Unsupported Fibre Channel Adapter"};
2216 case PCI_DEVICE_ID_LANCER_FC:
2217 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2219 case PCI_DEVICE_ID_LANCER_FC_VF:
2220 m = (typeof(m)){"LPe16000", "PCIe",
2221 "Obsolete, Unsupported Fibre Channel Adapter"};
2223 case PCI_DEVICE_ID_LANCER_FCOE:
2225 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2227 case PCI_DEVICE_ID_LANCER_FCOE_VF:
2229 m = (typeof(m)){"OCe15100", "PCIe",
2230 "Obsolete, Unsupported FCoE"};
2232 case PCI_DEVICE_ID_SKYHAWK:
2233 case PCI_DEVICE_ID_SKYHAWK_VF:
2235 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2238 m = (typeof(m)){"Unknown", "", ""};
2242 if (mdp && mdp[0] == '\0')
2243 snprintf(mdp, 79,"%s", m.name);
2245 * oneConnect hba requires special processing, they are all initiators
2246 * and we put the port number on the end
2248 if (descp && descp[0] == '\0') {
2250 snprintf(descp, 255,
2251 "Emulex OneConnect %s, %s Initiator %s",
2254 else if (max_speed == 0)
2255 snprintf(descp, 255,
2257 m.name, m.bus, m.function);
2259 snprintf(descp, 255,
2260 "Emulex %s %d%s %s %s",
2261 m.name, max_speed, (GE) ? "GE" : "Gb",
2267 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2268 * @phba: pointer to lpfc hba data structure.
2269 * @pring: pointer to a IOCB ring.
2270 * @cnt: the number of IOCBs to be posted to the IOCB ring.
2272 * This routine posts a given number of IOCBs with the associated DMA buffer
2273 * descriptors specified by the cnt argument to the given IOCB ring.
2276 * The number of IOCBs NOT able to be posted to the IOCB ring.
2279 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2282 struct lpfc_iocbq *iocb;
2283 struct lpfc_dmabuf *mp1, *mp2;
2285 cnt += pring->missbufcnt;
2287 /* While there are buffers to post */
2289 /* Allocate buffer for command iocb */
2290 iocb = lpfc_sli_get_iocbq(phba);
2292 pring->missbufcnt = cnt;
2297 /* 2 buffers can be posted per command */
2298 /* Allocate buffer to post */
2299 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2301 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2302 if (!mp1 || !mp1->virt) {
2304 lpfc_sli_release_iocbq(phba, iocb);
2305 pring->missbufcnt = cnt;
2309 INIT_LIST_HEAD(&mp1->list);
2310 /* Allocate buffer to post */
2312 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2314 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2316 if (!mp2 || !mp2->virt) {
2318 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2320 lpfc_sli_release_iocbq(phba, iocb);
2321 pring->missbufcnt = cnt;
2325 INIT_LIST_HEAD(&mp2->list);
2330 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2331 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2332 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2333 icmd->ulpBdeCount = 1;
2336 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2337 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2338 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2340 icmd->ulpBdeCount = 2;
2343 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2346 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2348 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2352 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2356 lpfc_sli_release_iocbq(phba, iocb);
2357 pring->missbufcnt = cnt;
2360 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2362 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2364 pring->missbufcnt = 0;
2369 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2370 * @phba: pointer to lpfc hba data structure.
2372 * This routine posts initial receive IOCB buffers to the ELS ring. The
2373 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2377 * 0 - success (currently always success)
2380 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2382 struct lpfc_sli *psli = &phba->sli;
2384 /* Ring 0, ELS / CT buffers */
2385 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2386 /* Ring 2 - FCP no buffers needed */
2391 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2394 * lpfc_sha_init - Set up initial array of hash table entries
2395 * @HashResultPointer: pointer to an array as hash table.
2397 * This routine sets up the initial values to the array of hash table entries
2401 lpfc_sha_init(uint32_t * HashResultPointer)
2403 HashResultPointer[0] = 0x67452301;
2404 HashResultPointer[1] = 0xEFCDAB89;
2405 HashResultPointer[2] = 0x98BADCFE;
2406 HashResultPointer[3] = 0x10325476;
2407 HashResultPointer[4] = 0xC3D2E1F0;
2411 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2412 * @HashResultPointer: pointer to an initial/result hash table.
2413 * @HashWorkingPointer: pointer to an working hash table.
2415 * This routine iterates an initial hash table pointed by @HashResultPointer
2416 * with the values from the working hash table pointeed by @HashWorkingPointer.
2417 * The results are putting back to the initial hash table, returned through
2418 * the @HashResultPointer as the result hash table.
2421 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2425 uint32_t A, B, C, D, E;
2428 HashWorkingPointer[t] =
2430 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2432 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2433 } while (++t <= 79);
2435 A = HashResultPointer[0];
2436 B = HashResultPointer[1];
2437 C = HashResultPointer[2];
2438 D = HashResultPointer[3];
2439 E = HashResultPointer[4];
2443 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2444 } else if (t < 40) {
2445 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2446 } else if (t < 60) {
2447 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2449 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2451 TEMP += S(5, A) + E + HashWorkingPointer[t];
2457 } while (++t <= 79);
2459 HashResultPointer[0] += A;
2460 HashResultPointer[1] += B;
2461 HashResultPointer[2] += C;
2462 HashResultPointer[3] += D;
2463 HashResultPointer[4] += E;
2468 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2469 * @RandomChallenge: pointer to the entry of host challenge random number array.
2470 * @HashWorking: pointer to the entry of the working hash array.
2472 * This routine calculates the working hash array referred by @HashWorking
2473 * from the challenge random numbers associated with the host, referred by
2474 * @RandomChallenge. The result is put into the entry of the working hash
2475 * array and returned by reference through @HashWorking.
2478 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2480 *HashWorking = (*RandomChallenge ^ *HashWorking);
2484 * lpfc_hba_init - Perform special handling for LC HBA initialization
2485 * @phba: pointer to lpfc hba data structure.
2486 * @hbainit: pointer to an array of unsigned 32-bit integers.
2488 * This routine performs the special handling for LC HBA initialization.
2491 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2494 uint32_t *HashWorking;
2495 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2497 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2501 HashWorking[0] = HashWorking[78] = *pwwnn++;
2502 HashWorking[1] = HashWorking[79] = *pwwnn;
2504 for (t = 0; t < 7; t++)
2505 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2507 lpfc_sha_init(hbainit);
2508 lpfc_sha_iterate(hbainit, HashWorking);
2513 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2514 * @vport: pointer to a virtual N_Port data structure.
2516 * This routine performs the necessary cleanups before deleting the @vport.
2517 * It invokes the discovery state machine to perform necessary state
2518 * transitions and to release the ndlps associated with the @vport. Note,
2519 * the physical port is treated as @vport 0.
2522 lpfc_cleanup(struct lpfc_vport *vport)
2524 struct lpfc_hba *phba = vport->phba;
2525 struct lpfc_nodelist *ndlp, *next_ndlp;
2528 if (phba->link_state > LPFC_LINK_DOWN)
2529 lpfc_port_link_failure(vport);
2531 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2532 if (!NLP_CHK_NODE_ACT(ndlp)) {
2533 ndlp = lpfc_enable_node(vport, ndlp,
2534 NLP_STE_UNUSED_NODE);
2537 spin_lock_irq(&phba->ndlp_lock);
2538 NLP_SET_FREE_REQ(ndlp);
2539 spin_unlock_irq(&phba->ndlp_lock);
2540 /* Trigger the release of the ndlp memory */
2544 spin_lock_irq(&phba->ndlp_lock);
2545 if (NLP_CHK_FREE_REQ(ndlp)) {
2546 /* The ndlp should not be in memory free mode already */
2547 spin_unlock_irq(&phba->ndlp_lock);
2550 /* Indicate request for freeing ndlp memory */
2551 NLP_SET_FREE_REQ(ndlp);
2552 spin_unlock_irq(&phba->ndlp_lock);
2554 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2555 ndlp->nlp_DID == Fabric_DID) {
2556 /* Just free up ndlp with Fabric_DID for vports */
2561 /* take care of nodes in unused state before the state
2562 * machine taking action.
2564 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2569 if (ndlp->nlp_type & NLP_FABRIC)
2570 lpfc_disc_state_machine(vport, ndlp, NULL,
2571 NLP_EVT_DEVICE_RECOVERY);
2573 lpfc_disc_state_machine(vport, ndlp, NULL,
2577 /* At this point, ALL ndlp's should be gone
2578 * because of the previous NLP_EVT_DEVICE_RM.
2579 * Lets wait for this to happen, if needed.
2581 while (!list_empty(&vport->fc_nodes)) {
2583 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2584 "0233 Nodelist not empty\n");
2585 list_for_each_entry_safe(ndlp, next_ndlp,
2586 &vport->fc_nodes, nlp_listp) {
2587 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2589 "0282 did:x%x ndlp:x%p "
2590 "usgmap:x%x refcnt:%d\n",
2591 ndlp->nlp_DID, (void *)ndlp,
2594 &ndlp->kref.refcount));
2599 /* Wait for any activity on ndlps to settle */
2602 lpfc_cleanup_vports_rrqs(vport, NULL);
2606 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2607 * @vport: pointer to a virtual N_Port data structure.
2609 * This routine stops all the timers associated with a @vport. This function
2610 * is invoked before disabling or deleting a @vport. Note that the physical
2611 * port is treated as @vport 0.
2614 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2616 del_timer_sync(&vport->els_tmofunc);
2617 del_timer_sync(&vport->fc_fdmitmo);
2618 del_timer_sync(&vport->delayed_disc_tmo);
2619 lpfc_can_disctmo(vport);
2624 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2625 * @phba: pointer to lpfc hba data structure.
2627 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2628 * caller of this routine should already hold the host lock.
2631 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2633 /* Clear pending FCF rediscovery wait flag */
2634 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2636 /* Now, try to stop the timer */
2637 del_timer(&phba->fcf.redisc_wait);
2641 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2642 * @phba: pointer to lpfc hba data structure.
2644 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2645 * checks whether the FCF rediscovery wait timer is pending with the host
2646 * lock held before proceeding with disabling the timer and clearing the
2647 * wait timer pendig flag.
2650 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2652 spin_lock_irq(&phba->hbalock);
2653 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2654 /* FCF rediscovery timer already fired or stopped */
2655 spin_unlock_irq(&phba->hbalock);
2658 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2659 /* Clear failover in progress flags */
2660 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2661 spin_unlock_irq(&phba->hbalock);
2665 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2666 * @phba: pointer to lpfc hba data structure.
2668 * This routine stops all the timers associated with a HBA. This function is
2669 * invoked before either putting a HBA offline or unloading the driver.
2672 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2674 lpfc_stop_vport_timers(phba->pport);
2675 del_timer_sync(&phba->sli.mbox_tmo);
2676 del_timer_sync(&phba->fabric_block_timer);
2677 del_timer_sync(&phba->eratt_poll);
2678 del_timer_sync(&phba->hb_tmofunc);
2679 if (phba->sli_rev == LPFC_SLI_REV4) {
2680 del_timer_sync(&phba->rrq_tmr);
2681 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2683 phba->hb_outstanding = 0;
2685 switch (phba->pci_dev_grp) {
2686 case LPFC_PCI_DEV_LP:
2687 /* Stop any LightPulse device specific driver timers */
2688 del_timer_sync(&phba->fcp_poll_timer);
2690 case LPFC_PCI_DEV_OC:
2691 /* Stop any OneConnect device sepcific driver timers */
2692 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2695 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2696 "0297 Invalid device group (x%x)\n",
2704 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2705 * @phba: pointer to lpfc hba data structure.
2707 * This routine marks a HBA's management interface as blocked. Once the HBA's
2708 * management interface is marked as blocked, all the user space access to
2709 * the HBA, whether they are from sysfs interface or libdfc interface will
2710 * all be blocked. The HBA is set to block the management interface when the
2711 * driver prepares the HBA interface for online or offline.
2714 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2716 unsigned long iflag;
2717 uint8_t actcmd = MBX_HEARTBEAT;
2718 unsigned long timeout;
2720 spin_lock_irqsave(&phba->hbalock, iflag);
2721 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2722 spin_unlock_irqrestore(&phba->hbalock, iflag);
2723 if (mbx_action == LPFC_MBX_NO_WAIT)
2725 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2726 spin_lock_irqsave(&phba->hbalock, iflag);
2727 if (phba->sli.mbox_active) {
2728 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2729 /* Determine how long we might wait for the active mailbox
2730 * command to be gracefully completed by firmware.
2732 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2733 phba->sli.mbox_active) * 1000) + jiffies;
2735 spin_unlock_irqrestore(&phba->hbalock, iflag);
2737 /* Wait for the outstnading mailbox command to complete */
2738 while (phba->sli.mbox_active) {
2739 /* Check active mailbox complete status every 2ms */
2741 if (time_after(jiffies, timeout)) {
2742 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2743 "2813 Mgmt IO is Blocked %x "
2744 "- mbox cmd %x still active\n",
2745 phba->sli.sli_flag, actcmd);
2752 * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2753 * @phba: pointer to lpfc hba data structure.
2755 * Allocate RPIs for all active remote nodes. This is needed whenever
2756 * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2757 * is to fixup the temporary rpi assignments.
2760 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2762 struct lpfc_nodelist *ndlp, *next_ndlp;
2763 struct lpfc_vport **vports;
2766 if (phba->sli_rev != LPFC_SLI_REV4)
2769 vports = lpfc_create_vport_work_array(phba);
2770 if (vports != NULL) {
2771 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2772 if (vports[i]->load_flag & FC_UNLOADING)
2775 list_for_each_entry_safe(ndlp, next_ndlp,
2776 &vports[i]->fc_nodes,
2778 if (NLP_CHK_NODE_ACT(ndlp)) {
2780 lpfc_sli4_alloc_rpi(phba);
2781 lpfc_printf_vlog(ndlp->vport, KERN_INFO,
2783 "0009 rpi:%x DID:%x "
2784 "flg:%x map:%x %p\n",
2794 lpfc_destroy_vport_work_array(phba, vports);
2798 * lpfc_online - Initialize and bring a HBA online
2799 * @phba: pointer to lpfc hba data structure.
2801 * This routine initializes the HBA and brings a HBA online. During this
2802 * process, the management interface is blocked to prevent user space access
2803 * to the HBA interfering with the driver initialization.
2810 lpfc_online(struct lpfc_hba *phba)
2812 struct lpfc_vport *vport;
2813 struct lpfc_vport **vports;
2815 bool vpis_cleared = false;
2819 vport = phba->pport;
2821 if (!(vport->fc_flag & FC_OFFLINE_MODE))
2824 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2825 "0458 Bring Adapter online\n");
2827 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2829 if (!lpfc_sli_queue_setup(phba)) {
2830 lpfc_unblock_mgmt_io(phba);
2834 if (phba->sli_rev == LPFC_SLI_REV4) {
2835 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2836 lpfc_unblock_mgmt_io(phba);
2839 spin_lock_irq(&phba->hbalock);
2840 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2841 vpis_cleared = true;
2842 spin_unlock_irq(&phba->hbalock);
2844 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2845 lpfc_unblock_mgmt_io(phba);
2850 vports = lpfc_create_vport_work_array(phba);
2852 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2853 struct Scsi_Host *shost;
2854 shost = lpfc_shost_from_vport(vports[i]);
2855 spin_lock_irq(shost->host_lock);
2856 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2857 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2858 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2859 if (phba->sli_rev == LPFC_SLI_REV4) {
2860 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2861 if ((vpis_cleared) &&
2862 (vports[i]->port_type !=
2863 LPFC_PHYSICAL_PORT))
2866 spin_unlock_irq(shost->host_lock);
2868 lpfc_destroy_vport_work_array(phba, vports);
2870 lpfc_unblock_mgmt_io(phba);
2875 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2876 * @phba: pointer to lpfc hba data structure.
2878 * This routine marks a HBA's management interface as not blocked. Once the
2879 * HBA's management interface is marked as not blocked, all the user space
2880 * access to the HBA, whether they are from sysfs interface or libdfc
2881 * interface will be allowed. The HBA is set to block the management interface
2882 * when the driver prepares the HBA interface for online or offline and then
2883 * set to unblock the management interface afterwards.
2886 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2888 unsigned long iflag;
2890 spin_lock_irqsave(&phba->hbalock, iflag);
2891 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2892 spin_unlock_irqrestore(&phba->hbalock, iflag);
2896 * lpfc_offline_prep - Prepare a HBA to be brought offline
2897 * @phba: pointer to lpfc hba data structure.
2899 * This routine is invoked to prepare a HBA to be brought offline. It performs
2900 * unregistration login to all the nodes on all vports and flushes the mailbox
2901 * queue to make it ready to be brought offline.
2904 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2906 struct lpfc_vport *vport = phba->pport;
2907 struct lpfc_nodelist *ndlp, *next_ndlp;
2908 struct lpfc_vport **vports;
2909 struct Scsi_Host *shost;
2912 if (vport->fc_flag & FC_OFFLINE_MODE)
2915 lpfc_block_mgmt_io(phba, mbx_action);
2917 lpfc_linkdown(phba);
2919 /* Issue an unreg_login to all nodes on all vports */
2920 vports = lpfc_create_vport_work_array(phba);
2921 if (vports != NULL) {
2922 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2923 if (vports[i]->load_flag & FC_UNLOADING)
2925 shost = lpfc_shost_from_vport(vports[i]);
2926 spin_lock_irq(shost->host_lock);
2927 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2928 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2929 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2930 spin_unlock_irq(shost->host_lock);
2932 shost = lpfc_shost_from_vport(vports[i]);
2933 list_for_each_entry_safe(ndlp, next_ndlp,
2934 &vports[i]->fc_nodes,
2936 if (!NLP_CHK_NODE_ACT(ndlp))
2938 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2940 if (ndlp->nlp_type & NLP_FABRIC) {
2941 lpfc_disc_state_machine(vports[i], ndlp,
2942 NULL, NLP_EVT_DEVICE_RECOVERY);
2943 lpfc_disc_state_machine(vports[i], ndlp,
2944 NULL, NLP_EVT_DEVICE_RM);
2946 spin_lock_irq(shost->host_lock);
2947 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2948 spin_unlock_irq(shost->host_lock);
2950 * Whenever an SLI4 port goes offline, free the
2951 * RPI. Get a new RPI when the adapter port
2952 * comes back online.
2954 if (phba->sli_rev == LPFC_SLI_REV4) {
2955 lpfc_printf_vlog(ndlp->vport,
2956 KERN_INFO, LOG_NODE,
2957 "0011 lpfc_offline: "
2959 "usgmap:x%x rpi:%x\n",
2960 ndlp, ndlp->nlp_DID,
2964 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2966 lpfc_unreg_rpi(vports[i], ndlp);
2970 lpfc_destroy_vport_work_array(phba, vports);
2972 lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2976 * lpfc_offline - Bring a HBA offline
2977 * @phba: pointer to lpfc hba data structure.
2979 * This routine actually brings a HBA offline. It stops all the timers
2980 * associated with the HBA, brings down the SLI layer, and eventually
2981 * marks the HBA as in offline state for the upper layer protocol.
2984 lpfc_offline(struct lpfc_hba *phba)
2986 struct Scsi_Host *shost;
2987 struct lpfc_vport **vports;
2990 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2993 /* stop port and all timers associated with this hba */
2994 lpfc_stop_port(phba);
2995 vports = lpfc_create_vport_work_array(phba);
2997 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2998 lpfc_stop_vport_timers(vports[i]);
2999 lpfc_destroy_vport_work_array(phba, vports);
3000 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3001 "0460 Bring Adapter offline\n");
3002 /* Bring down the SLI Layer and cleanup. The HBA is offline
3004 lpfc_sli_hba_down(phba);
3005 spin_lock_irq(&phba->hbalock);
3007 spin_unlock_irq(&phba->hbalock);
3008 vports = lpfc_create_vport_work_array(phba);
3010 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3011 shost = lpfc_shost_from_vport(vports[i]);
3012 spin_lock_irq(shost->host_lock);
3013 vports[i]->work_port_events = 0;
3014 vports[i]->fc_flag |= FC_OFFLINE_MODE;
3015 spin_unlock_irq(shost->host_lock);
3017 lpfc_destroy_vport_work_array(phba, vports);
3021 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3022 * @phba: pointer to lpfc hba data structure.
3024 * This routine is to free all the SCSI buffers and IOCBs from the driver
3025 * list back to kernel. It is called from lpfc_pci_remove_one to free
3026 * the internal resources before the device is removed from the system.
3029 lpfc_scsi_free(struct lpfc_hba *phba)
3031 struct lpfc_scsi_buf *sb, *sb_next;
3032 struct lpfc_iocbq *io, *io_next;
3034 spin_lock_irq(&phba->hbalock);
3036 /* Release all the lpfc_scsi_bufs maintained by this host. */
3038 spin_lock(&phba->scsi_buf_list_put_lock);
3039 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3041 list_del(&sb->list);
3042 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3045 phba->total_scsi_bufs--;
3047 spin_unlock(&phba->scsi_buf_list_put_lock);
3049 spin_lock(&phba->scsi_buf_list_get_lock);
3050 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3052 list_del(&sb->list);
3053 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3056 phba->total_scsi_bufs--;
3058 spin_unlock(&phba->scsi_buf_list_get_lock);
3060 /* Release all the lpfc_iocbq entries maintained by this host. */
3061 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
3062 list_del(&io->list);
3064 phba->total_iocbq_bufs--;
3067 spin_unlock_irq(&phba->hbalock);
3071 * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
3072 * @phba: pointer to lpfc hba data structure.
3074 * This routine first calculates the sizes of the current els and allocated
3075 * scsi sgl lists, and then goes through all sgls to updates the physical
3076 * XRIs assigned due to port function reset. During port initialization, the
3077 * current els and allocated scsi sgl lists are 0s.
3080 * 0 - successful (for now, it always returns 0)
3083 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
3085 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3086 struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
3087 uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
3088 LIST_HEAD(els_sgl_list);
3089 LIST_HEAD(scsi_sgl_list);
3091 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
3094 * update on pci function's els xri-sgl list
3096 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3097 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3098 /* els xri-sgl expanded */
3099 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3100 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3101 "3157 ELS xri-sgl count increased from "
3102 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3104 /* allocate the additional els sgls */
3105 for (i = 0; i < xri_cnt; i++) {
3106 sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3108 if (sglq_entry == NULL) {
3109 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3110 "2562 Failure to allocate an "
3111 "ELS sgl entry:%d\n", i);
3115 sglq_entry->buff_type = GEN_BUFF_TYPE;
3116 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3118 if (sglq_entry->virt == NULL) {
3120 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3121 "2563 Failure to allocate an "
3122 "ELS mbuf:%d\n", i);
3126 sglq_entry->sgl = sglq_entry->virt;
3127 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3128 sglq_entry->state = SGL_FREED;
3129 list_add_tail(&sglq_entry->list, &els_sgl_list);
3131 spin_lock_irq(&phba->hbalock);
3132 spin_lock(&pring->ring_lock);
3133 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3134 spin_unlock(&pring->ring_lock);
3135 spin_unlock_irq(&phba->hbalock);
3136 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3137 /* els xri-sgl shrinked */
3138 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3139 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3140 "3158 ELS xri-sgl count decreased from "
3141 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3143 spin_lock_irq(&phba->hbalock);
3144 spin_lock(&pring->ring_lock);
3145 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
3146 spin_unlock(&pring->ring_lock);
3147 spin_unlock_irq(&phba->hbalock);
3148 /* release extra els sgls from list */
3149 for (i = 0; i < xri_cnt; i++) {
3150 list_remove_head(&els_sgl_list,
3151 sglq_entry, struct lpfc_sglq, list);
3153 lpfc_mbuf_free(phba, sglq_entry->virt,
3158 spin_lock_irq(&phba->hbalock);
3159 spin_lock(&pring->ring_lock);
3160 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3161 spin_unlock(&pring->ring_lock);
3162 spin_unlock_irq(&phba->hbalock);
3164 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3165 "3163 ELS xri-sgl count unchanged: %d\n",
3167 phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3169 /* update xris to els sgls on the list */
3171 sglq_entry_next = NULL;
3172 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3173 &phba->sli4_hba.lpfc_sgl_list, list) {
3174 lxri = lpfc_sli4_next_xritag(phba);
3175 if (lxri == NO_XRI) {
3176 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3177 "2400 Failed to allocate xri for "
3182 sglq_entry->sli4_lxritag = lxri;
3183 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3187 * update on pci function's allocated scsi xri-sgl list
3189 phba->total_scsi_bufs = 0;
3191 /* maximum number of xris available for scsi buffers */
3192 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3195 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3196 "2401 Current allocated SCSI xri-sgl count:%d, "
3197 "maximum SCSI xri count:%d\n",
3198 phba->sli4_hba.scsi_xri_cnt,
3199 phba->sli4_hba.scsi_xri_max);
3201 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3202 spin_lock(&phba->scsi_buf_list_put_lock);
3203 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3204 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3205 spin_unlock(&phba->scsi_buf_list_put_lock);
3206 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3208 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3209 /* max scsi xri shrinked below the allocated scsi buffers */
3210 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3211 phba->sli4_hba.scsi_xri_max;
3212 /* release the extra allocated scsi buffers */
3213 for (i = 0; i < scsi_xri_cnt; i++) {
3214 list_remove_head(&scsi_sgl_list, psb,
3215 struct lpfc_scsi_buf, list);
3217 pci_pool_free(phba->lpfc_scsi_dma_buf_pool,
3218 psb->data, psb->dma_handle);
3222 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3223 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3224 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3227 /* update xris associated to remaining allocated scsi buffers */
3230 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3231 lxri = lpfc_sli4_next_xritag(phba);
3232 if (lxri == NO_XRI) {
3233 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3234 "2560 Failed to allocate xri for "
3239 psb->cur_iocbq.sli4_lxritag = lxri;
3240 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3242 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3243 spin_lock(&phba->scsi_buf_list_put_lock);
3244 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3245 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3246 spin_unlock(&phba->scsi_buf_list_put_lock);
3247 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3252 lpfc_free_els_sgl_list(phba);
3253 lpfc_scsi_free(phba);
3258 * lpfc_create_port - Create an FC port
3259 * @phba: pointer to lpfc hba data structure.
3260 * @instance: a unique integer ID to this FC port.
3261 * @dev: pointer to the device data structure.
3263 * This routine creates a FC port for the upper layer protocol. The FC port
3264 * can be created on top of either a physical port or a virtual port provided
3265 * by the HBA. This routine also allocates a SCSI host data structure (shost)
3266 * and associates the FC port created before adding the shost into the SCSI
3270 * @vport - pointer to the virtual N_Port data structure.
3271 * NULL - port create failed.
3274 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3276 struct lpfc_vport *vport;
3277 struct Scsi_Host *shost;
3280 if (dev != &phba->pcidev->dev) {
3281 shost = scsi_host_alloc(&lpfc_vport_template,
3282 sizeof(struct lpfc_vport));
3284 if (phba->sli_rev == LPFC_SLI_REV4)
3285 shost = scsi_host_alloc(&lpfc_template,
3286 sizeof(struct lpfc_vport));
3288 shost = scsi_host_alloc(&lpfc_template_s3,
3289 sizeof(struct lpfc_vport));
3294 vport = (struct lpfc_vport *) shost->hostdata;
3296 vport->load_flag |= FC_LOADING;
3297 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3298 vport->fc_rscn_flush = 0;
3300 lpfc_get_vport_cfgparam(vport);
3301 shost->unique_id = instance;
3302 shost->max_id = LPFC_MAX_TARGET;
3303 shost->max_lun = vport->cfg_max_luns;
3304 shost->this_id = -1;
3305 shost->max_cmd_len = 16;
3306 shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3307 if (phba->sli_rev == LPFC_SLI_REV4) {
3308 shost->dma_boundary =
3309 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3310 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3314 * Set initial can_queue value since 0 is no longer supported and
3315 * scsi_add_host will fail. This will be adjusted later based on the
3316 * max xri value determined in hba setup.
3318 shost->can_queue = phba->cfg_hba_queue_depth - 10;
3319 if (dev != &phba->pcidev->dev) {
3320 shost->transportt = lpfc_vport_transport_template;
3321 vport->port_type = LPFC_NPIV_PORT;
3323 shost->transportt = lpfc_transport_template;
3324 vport->port_type = LPFC_PHYSICAL_PORT;
3327 /* Initialize all internally managed lists. */
3328 INIT_LIST_HEAD(&vport->fc_nodes);
3329 INIT_LIST_HEAD(&vport->rcv_buffer_list);
3330 spin_lock_init(&vport->work_port_lock);
3332 init_timer(&vport->fc_disctmo);
3333 vport->fc_disctmo.function = lpfc_disc_timeout;
3334 vport->fc_disctmo.data = (unsigned long)vport;
3336 init_timer(&vport->fc_fdmitmo);
3337 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
3338 vport->fc_fdmitmo.data = (unsigned long)vport;
3340 init_timer(&vport->els_tmofunc);
3341 vport->els_tmofunc.function = lpfc_els_timeout;
3342 vport->els_tmofunc.data = (unsigned long)vport;
3344 init_timer(&vport->delayed_disc_tmo);
3345 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3346 vport->delayed_disc_tmo.data = (unsigned long)vport;
3348 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3352 spin_lock_irq(&phba->hbalock);
3353 list_add_tail(&vport->listentry, &phba->port_list);
3354 spin_unlock_irq(&phba->hbalock);
3358 scsi_host_put(shost);
3364 * destroy_port - destroy an FC port
3365 * @vport: pointer to an lpfc virtual N_Port data structure.
3367 * This routine destroys a FC port from the upper layer protocol. All the
3368 * resources associated with the port are released.
3371 destroy_port(struct lpfc_vport *vport)
3373 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3374 struct lpfc_hba *phba = vport->phba;
3376 lpfc_debugfs_terminate(vport);
3377 fc_remove_host(shost);
3378 scsi_remove_host(shost);
3380 spin_lock_irq(&phba->hbalock);
3381 list_del_init(&vport->listentry);
3382 spin_unlock_irq(&phba->hbalock);
3384 lpfc_cleanup(vport);
3389 * lpfc_get_instance - Get a unique integer ID
3391 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3392 * uses the kernel idr facility to perform the task.
3395 * instance - a unique integer ID allocated as the new instance.
3396 * -1 - lpfc get instance failed.
3399 lpfc_get_instance(void)
3403 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3404 return ret < 0 ? -1 : ret;
3408 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3409 * @shost: pointer to SCSI host data structure.
3410 * @time: elapsed time of the scan in jiffies.
3412 * This routine is called by the SCSI layer with a SCSI host to determine
3413 * whether the scan host is finished.
3415 * Note: there is no scan_start function as adapter initialization will have
3416 * asynchronously kicked off the link initialization.
3419 * 0 - SCSI host scan is not over yet.
3420 * 1 - SCSI host scan is over.
3422 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3424 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3425 struct lpfc_hba *phba = vport->phba;
3428 spin_lock_irq(shost->host_lock);
3430 if (vport->load_flag & FC_UNLOADING) {
3434 if (time >= msecs_to_jiffies(30 * 1000)) {
3435 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3436 "0461 Scanning longer than 30 "
3437 "seconds. Continuing initialization\n");
3441 if (time >= msecs_to_jiffies(15 * 1000) &&
3442 phba->link_state <= LPFC_LINK_DOWN) {
3443 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3444 "0465 Link down longer than 15 "
3445 "seconds. Continuing initialization\n");
3450 if (vport->port_state != LPFC_VPORT_READY)
3452 if (vport->num_disc_nodes || vport->fc_prli_sent)
3454 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3456 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3462 spin_unlock_irq(shost->host_lock);
3467 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3468 * @shost: pointer to SCSI host data structure.
3470 * This routine initializes a given SCSI host attributes on a FC port. The
3471 * SCSI host can be either on top of a physical port or a virtual port.
3473 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3475 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3476 struct lpfc_hba *phba = vport->phba;
3478 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
3481 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3482 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3483 fc_host_supported_classes(shost) = FC_COS_CLASS3;
3485 memset(fc_host_supported_fc4s(shost), 0,
3486 sizeof(fc_host_supported_fc4s(shost)));
3487 fc_host_supported_fc4s(shost)[2] = 1;
3488 fc_host_supported_fc4s(shost)[7] = 1;
3490 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3491 sizeof fc_host_symbolic_name(shost));
3493 fc_host_supported_speeds(shost) = 0;
3494 if (phba->lmt & LMT_16Gb)
3495 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3496 if (phba->lmt & LMT_10Gb)
3497 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3498 if (phba->lmt & LMT_8Gb)
3499 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3500 if (phba->lmt & LMT_4Gb)
3501 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3502 if (phba->lmt & LMT_2Gb)
3503 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3504 if (phba->lmt & LMT_1Gb)
3505 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3507 fc_host_maxframe_size(shost) =
3508 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3509 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3511 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3513 /* This value is also unchanging */
3514 memset(fc_host_active_fc4s(shost), 0,
3515 sizeof(fc_host_active_fc4s(shost)));
3516 fc_host_active_fc4s(shost)[2] = 1;
3517 fc_host_active_fc4s(shost)[7] = 1;
3519 fc_host_max_npiv_vports(shost) = phba->max_vpi;
3520 spin_lock_irq(shost->host_lock);
3521 vport->load_flag &= ~FC_LOADING;
3522 spin_unlock_irq(shost->host_lock);
3526 * lpfc_stop_port_s3 - Stop SLI3 device port
3527 * @phba: pointer to lpfc hba data structure.
3529 * This routine is invoked to stop an SLI3 device port, it stops the device
3530 * from generating interrupts and stops the device driver's timers for the
3534 lpfc_stop_port_s3(struct lpfc_hba *phba)
3536 /* Clear all interrupt enable conditions */
3537 writel(0, phba->HCregaddr);
3538 readl(phba->HCregaddr); /* flush */
3539 /* Clear all pending interrupts */
3540 writel(0xffffffff, phba->HAregaddr);
3541 readl(phba->HAregaddr); /* flush */
3543 /* Reset some HBA SLI setup states */
3544 lpfc_stop_hba_timers(phba);
3545 phba->pport->work_port_events = 0;
3549 * lpfc_stop_port_s4 - Stop SLI4 device port
3550 * @phba: pointer to lpfc hba data structure.
3552 * This routine is invoked to stop an SLI4 device port, it stops the device
3553 * from generating interrupts and stops the device driver's timers for the
3557 lpfc_stop_port_s4(struct lpfc_hba *phba)
3559 /* Reset some HBA SLI4 setup states */
3560 lpfc_stop_hba_timers(phba);
3561 phba->pport->work_port_events = 0;
3562 phba->sli4_hba.intr_enable = 0;
3566 * lpfc_stop_port - Wrapper function for stopping hba port
3567 * @phba: Pointer to HBA context object.
3569 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3570 * the API jump table function pointer from the lpfc_hba struct.
3573 lpfc_stop_port(struct lpfc_hba *phba)
3575 phba->lpfc_stop_port(phba);
3579 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3580 * @phba: Pointer to hba for which this call is being executed.
3582 * This routine starts the timer waiting for the FCF rediscovery to complete.
3585 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3587 unsigned long fcf_redisc_wait_tmo =
3588 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3589 /* Start fcf rediscovery wait period timer */
3590 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3591 spin_lock_irq(&phba->hbalock);
3592 /* Allow action to new fcf asynchronous event */
3593 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3594 /* Mark the FCF rediscovery pending state */
3595 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3596 spin_unlock_irq(&phba->hbalock);
3600 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3601 * @ptr: Map to lpfc_hba data structure pointer.
3603 * This routine is invoked when waiting for FCF table rediscover has been
3604 * timed out. If new FCF record(s) has (have) been discovered during the
3605 * wait period, a new FCF event shall be added to the FCOE async event
3606 * list, and then worker thread shall be waked up for processing from the
3607 * worker thread context.
3610 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3612 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3614 /* Don't send FCF rediscovery event if timer cancelled */
3615 spin_lock_irq(&phba->hbalock);
3616 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3617 spin_unlock_irq(&phba->hbalock);
3620 /* Clear FCF rediscovery timer pending flag */
3621 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3622 /* FCF rediscovery event to worker thread */
3623 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3624 spin_unlock_irq(&phba->hbalock);
3625 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3626 "2776 FCF rediscover quiescent timer expired\n");
3627 /* wake up worker thread */
3628 lpfc_worker_wake_up(phba);
3632 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3633 * @phba: pointer to lpfc hba data structure.
3634 * @acqe_link: pointer to the async link completion queue entry.
3636 * This routine is to parse the SLI4 link-attention link fault code and
3637 * translate it into the base driver's read link attention mailbox command
3640 * Return: Link-attention status in terms of base driver's coding.
3643 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3644 struct lpfc_acqe_link *acqe_link)
3646 uint16_t latt_fault;
3648 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3649 case LPFC_ASYNC_LINK_FAULT_NONE:
3650 case LPFC_ASYNC_LINK_FAULT_LOCAL:
3651 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3655 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3656 "0398 Invalid link fault code: x%x\n",
3657 bf_get(lpfc_acqe_link_fault, acqe_link));
3658 latt_fault = MBXERR_ERROR;
3665 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3666 * @phba: pointer to lpfc hba data structure.
3667 * @acqe_link: pointer to the async link completion queue entry.
3669 * This routine is to parse the SLI4 link attention type and translate it
3670 * into the base driver's link attention type coding.
3672 * Return: Link attention type in terms of base driver's coding.
3675 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3676 struct lpfc_acqe_link *acqe_link)
3680 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3681 case LPFC_ASYNC_LINK_STATUS_DOWN:
3682 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3683 att_type = LPFC_ATT_LINK_DOWN;
3685 case LPFC_ASYNC_LINK_STATUS_UP:
3686 /* Ignore physical link up events - wait for logical link up */
3687 att_type = LPFC_ATT_RESERVED;
3689 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3690 att_type = LPFC_ATT_LINK_UP;
3693 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3694 "0399 Invalid link attention type: x%x\n",
3695 bf_get(lpfc_acqe_link_status, acqe_link));
3696 att_type = LPFC_ATT_RESERVED;
3703 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3704 * @phba: pointer to lpfc hba data structure.
3705 * @acqe_link: pointer to the async link completion queue entry.
3707 * This routine is to parse the SLI4 link-attention link speed and translate
3708 * it into the base driver's link-attention link speed coding.
3710 * Return: Link-attention link speed in terms of base driver's coding.
3713 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3714 struct lpfc_acqe_link *acqe_link)
3718 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3719 case LPFC_ASYNC_LINK_SPEED_ZERO:
3720 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3721 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3722 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3724 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3725 link_speed = LPFC_LINK_SPEED_1GHZ;
3727 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3728 link_speed = LPFC_LINK_SPEED_10GHZ;
3730 case LPFC_ASYNC_LINK_SPEED_20GBPS:
3731 case LPFC_ASYNC_LINK_SPEED_25GBPS:
3732 case LPFC_ASYNC_LINK_SPEED_40GBPS:
3733 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3736 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3737 "0483 Invalid link-attention link speed: x%x\n",
3738 bf_get(lpfc_acqe_link_speed, acqe_link));
3739 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3746 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3747 * @phba: pointer to lpfc hba data structure.
3749 * This routine is to get an SLI3 FC port's link speed in Mbps.
3751 * Return: link speed in terms of Mbps.
3754 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3756 uint32_t link_speed;
3758 if (!lpfc_is_link_up(phba))
3761 switch (phba->fc_linkspeed) {
3762 case LPFC_LINK_SPEED_1GHZ:
3765 case LPFC_LINK_SPEED_2GHZ:
3768 case LPFC_LINK_SPEED_4GHZ:
3771 case LPFC_LINK_SPEED_8GHZ:
3774 case LPFC_LINK_SPEED_10GHZ:
3777 case LPFC_LINK_SPEED_16GHZ:
3787 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3788 * @phba: pointer to lpfc hba data structure.
3789 * @evt_code: asynchronous event code.
3790 * @speed_code: asynchronous event link speed code.
3792 * This routine is to parse the giving SLI4 async event link speed code into
3793 * value of Mbps for the link speed.
3795 * Return: link speed in terms of Mbps.
3798 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3801 uint32_t port_speed;
3804 case LPFC_TRAILER_CODE_LINK:
3805 switch (speed_code) {
3806 case LPFC_ASYNC_LINK_SPEED_ZERO:
3809 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3812 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3815 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3818 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3821 case LPFC_ASYNC_LINK_SPEED_20GBPS:
3824 case LPFC_ASYNC_LINK_SPEED_25GBPS:
3827 case LPFC_ASYNC_LINK_SPEED_40GBPS:
3834 case LPFC_TRAILER_CODE_FC:
3835 switch (speed_code) {
3836 case LPFC_FC_LA_SPEED_UNKNOWN:
3839 case LPFC_FC_LA_SPEED_1G:
3842 case LPFC_FC_LA_SPEED_2G:
3845 case LPFC_FC_LA_SPEED_4G:
3848 case LPFC_FC_LA_SPEED_8G:
3851 case LPFC_FC_LA_SPEED_10G:
3854 case LPFC_FC_LA_SPEED_16G:
3868 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3869 * @phba: pointer to lpfc hba data structure.
3870 * @acqe_link: pointer to the async link completion queue entry.
3872 * This routine is to handle the SLI4 asynchronous FCoE link event.
3875 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3876 struct lpfc_acqe_link *acqe_link)
3878 struct lpfc_dmabuf *mp;
3881 struct lpfc_mbx_read_top *la;
3885 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3886 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3888 phba->fcoe_eventtag = acqe_link->event_tag;
3889 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3891 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3892 "0395 The mboxq allocation failed\n");
3895 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3897 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3898 "0396 The lpfc_dmabuf allocation failed\n");
3901 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3903 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3904 "0397 The mbuf allocation failed\n");
3905 goto out_free_dmabuf;
3908 /* Cleanup any outstanding ELS commands */
3909 lpfc_els_flush_all_cmd(phba);
3911 /* Block ELS IOCBs until we have done process link event */
3912 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3914 /* Update link event statistics */
3915 phba->sli.slistat.link_event++;
3917 /* Create lpfc_handle_latt mailbox command from link ACQE */
3918 lpfc_read_topology(phba, pmb, mp);
3919 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3920 pmb->vport = phba->pport;
3922 /* Keep the link status for extra SLI4 state machine reference */
3923 phba->sli4_hba.link_state.speed =
3924 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3925 bf_get(lpfc_acqe_link_speed, acqe_link));
3926 phba->sli4_hba.link_state.duplex =
3927 bf_get(lpfc_acqe_link_duplex, acqe_link);
3928 phba->sli4_hba.link_state.status =
3929 bf_get(lpfc_acqe_link_status, acqe_link);
3930 phba->sli4_hba.link_state.type =
3931 bf_get(lpfc_acqe_link_type, acqe_link);
3932 phba->sli4_hba.link_state.number =
3933 bf_get(lpfc_acqe_link_number, acqe_link);
3934 phba->sli4_hba.link_state.fault =
3935 bf_get(lpfc_acqe_link_fault, acqe_link);
3936 phba->sli4_hba.link_state.logical_speed =
3937 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3939 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3940 "2900 Async FC/FCoE Link event - Speed:%dGBit "
3941 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3942 "Logical speed:%dMbps Fault:%d\n",
3943 phba->sli4_hba.link_state.speed,
3944 phba->sli4_hba.link_state.topology,
3945 phba->sli4_hba.link_state.status,
3946 phba->sli4_hba.link_state.type,
3947 phba->sli4_hba.link_state.number,
3948 phba->sli4_hba.link_state.logical_speed,
3949 phba->sli4_hba.link_state.fault);
3951 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3952 * topology info. Note: Optional for non FC-AL ports.
3954 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3955 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3956 if (rc == MBX_NOT_FINISHED)
3957 goto out_free_dmabuf;
3961 * For FCoE Mode: fill in all the topology information we need and call
3962 * the READ_TOPOLOGY completion routine to continue without actually
3963 * sending the READ_TOPOLOGY mailbox command to the port.
3965 /* Parse and translate status field */
3967 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3969 /* Parse and translate link attention fields */
3970 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3971 la->eventTag = acqe_link->event_tag;
3972 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3973 bf_set(lpfc_mbx_read_top_link_spd, la,
3974 lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3976 /* Fake the the following irrelvant fields */
3977 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3978 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3979 bf_set(lpfc_mbx_read_top_il, la, 0);
3980 bf_set(lpfc_mbx_read_top_pb, la, 0);
3981 bf_set(lpfc_mbx_read_top_fa, la, 0);
3982 bf_set(lpfc_mbx_read_top_mm, la, 0);
3984 /* Invoke the lpfc_handle_latt mailbox command callback function */
3985 lpfc_mbx_cmpl_read_topology(phba, pmb);
3992 mempool_free(pmb, phba->mbox_mem_pool);
3996 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3997 * @phba: pointer to lpfc hba data structure.
3998 * @acqe_fc: pointer to the async fc completion queue entry.
4000 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
4001 * that the event was received and then issue a read_topology mailbox command so
4002 * that the rest of the driver will treat it the same as SLI3.
4005 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
4007 struct lpfc_dmabuf *mp;
4011 if (bf_get(lpfc_trailer_type, acqe_fc) !=
4012 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
4013 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4014 "2895 Non FC link Event detected.(%d)\n",
4015 bf_get(lpfc_trailer_type, acqe_fc));
4018 /* Keep the link status for extra SLI4 state machine reference */
4019 phba->sli4_hba.link_state.speed =
4020 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4021 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4022 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4023 phba->sli4_hba.link_state.topology =
4024 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4025 phba->sli4_hba.link_state.status =
4026 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4027 phba->sli4_hba.link_state.type =
4028 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4029 phba->sli4_hba.link_state.number =
4030 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4031 phba->sli4_hba.link_state.fault =
4032 bf_get(lpfc_acqe_link_fault, acqe_fc);
4033 phba->sli4_hba.link_state.logical_speed =
4034 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4035 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4036 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4037 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4038 "%dMbps Fault:%d\n",
4039 phba->sli4_hba.link_state.speed,
4040 phba->sli4_hba.link_state.topology,
4041 phba->sli4_hba.link_state.status,
4042 phba->sli4_hba.link_state.type,
4043 phba->sli4_hba.link_state.number,
4044 phba->sli4_hba.link_state.logical_speed,
4045 phba->sli4_hba.link_state.fault);
4046 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4048 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4049 "2897 The mboxq allocation failed\n");
4052 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4054 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4055 "2898 The lpfc_dmabuf allocation failed\n");
4058 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4060 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4061 "2899 The mbuf allocation failed\n");
4062 goto out_free_dmabuf;
4065 /* Cleanup any outstanding ELS commands */
4066 lpfc_els_flush_all_cmd(phba);
4068 /* Block ELS IOCBs until we have done process link event */
4069 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
4071 /* Update link event statistics */
4072 phba->sli.slistat.link_event++;
4074 /* Create lpfc_handle_latt mailbox command from link ACQE */
4075 lpfc_read_topology(phba, pmb, mp);
4076 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4077 pmb->vport = phba->pport;
4079 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4080 if (rc == MBX_NOT_FINISHED)
4081 goto out_free_dmabuf;
4087 mempool_free(pmb, phba->mbox_mem_pool);
4091 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4092 * @phba: pointer to lpfc hba data structure.
4093 * @acqe_fc: pointer to the async SLI completion queue entry.
4095 * This routine is to handle the SLI4 asynchronous SLI events.
4098 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4104 struct temp_event temp_event_data;
4105 struct lpfc_acqe_misconfigured_event *misconfigured;
4106 struct Scsi_Host *shost;
4108 evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4110 /* Special case Lancer */
4111 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
4112 LPFC_SLI_INTF_IF_TYPE_2) {
4113 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4114 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4115 "x%08x SLI Event Type:%d\n",
4116 acqe_sli->event_data1, acqe_sli->event_data2,
4121 port_name = phba->Port[0];
4122 if (port_name == 0x00)
4123 port_name = '?'; /* get port name is empty */
4126 case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4127 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4128 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4129 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4131 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4132 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4133 acqe_sli->event_data1, port_name);
4135 shost = lpfc_shost_from_vport(phba->pport);
4136 fc_host_post_vendor_event(shost, fc_get_event_number(),
4137 sizeof(temp_event_data),
4138 (char *)&temp_event_data,
4139 SCSI_NL_VID_TYPE_PCI
4140 | PCI_VENDOR_ID_EMULEX);
4142 case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4143 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4144 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4145 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4147 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4148 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4149 acqe_sli->event_data1, port_name);
4151 shost = lpfc_shost_from_vport(phba->pport);
4152 fc_host_post_vendor_event(shost, fc_get_event_number(),
4153 sizeof(temp_event_data),
4154 (char *)&temp_event_data,
4155 SCSI_NL_VID_TYPE_PCI
4156 | PCI_VENDOR_ID_EMULEX);
4158 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4159 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4160 &acqe_sli->event_data1;
4162 /* fetch the status for this port */
4163 switch (phba->sli4_hba.lnk_info.lnk_no) {
4164 case LPFC_LINK_NUMBER_0:
4165 status = bf_get(lpfc_sli_misconfigured_port0,
4166 &misconfigured->theEvent);
4168 case LPFC_LINK_NUMBER_1:
4169 status = bf_get(lpfc_sli_misconfigured_port1,
4170 &misconfigured->theEvent);
4172 case LPFC_LINK_NUMBER_2:
4173 status = bf_get(lpfc_sli_misconfigured_port2,
4174 &misconfigured->theEvent);
4176 case LPFC_LINK_NUMBER_3:
4177 status = bf_get(lpfc_sli_misconfigured_port3,
4178 &misconfigured->theEvent);
4181 status = ~LPFC_SLI_EVENT_STATUS_VALID;
4186 case LPFC_SLI_EVENT_STATUS_VALID:
4187 return; /* no message if the sfp is okay */
4188 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4189 sprintf(message, "Optics faulted/incorrectly "
4190 "installed/not installed - Reseat optics, "
4191 "if issue not resolved, replace.");
4193 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4195 "Optics of two types installed - Remove one "
4196 "optic or install matching pair of optics.");
4198 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4199 sprintf(message, "Incompatible optics - Replace with "
4200 "compatible optics for card to function.");
4203 /* firmware is reporting a status we don't know about */
4204 sprintf(message, "Unknown event status x%02x", status);
4208 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4209 "3176 Misconfigured Physical Port - "
4210 "Port Name %c %s\n", port_name, message);
4212 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4213 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4214 "3192 Remote DPort Test Initiated - "
4215 "Event Data1:x%08x Event Data2: x%08x\n",
4216 acqe_sli->event_data1, acqe_sli->event_data2);
4219 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4220 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4221 "x%08x SLI Event Type:%d\n",
4222 acqe_sli->event_data1, acqe_sli->event_data2,
4229 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4230 * @vport: pointer to vport data structure.
4232 * This routine is to perform Clear Virtual Link (CVL) on a vport in
4233 * response to a CVL event.
4235 * Return the pointer to the ndlp with the vport if successful, otherwise
4238 static struct lpfc_nodelist *
4239 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4241 struct lpfc_nodelist *ndlp;
4242 struct Scsi_Host *shost;
4243 struct lpfc_hba *phba;
4250 ndlp = lpfc_findnode_did(vport, Fabric_DID);
4252 /* Cannot find existing Fabric ndlp, so allocate a new one */
4253 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4256 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4257 /* Set the node type */
4258 ndlp->nlp_type |= NLP_FABRIC;
4259 /* Put ndlp onto node list */
4260 lpfc_enqueue_node(vport, ndlp);
4261 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4262 /* re-setup ndlp without removing from node list */
4263 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4267 if ((phba->pport->port_state < LPFC_FLOGI) &&
4268 (phba->pport->port_state != LPFC_VPORT_FAILED))
4270 /* If virtual link is not yet instantiated ignore CVL */
4271 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4272 && (vport->port_state != LPFC_VPORT_FAILED))
4274 shost = lpfc_shost_from_vport(vport);
4277 lpfc_linkdown_port(vport);
4278 lpfc_cleanup_pending_mbox(vport);
4279 spin_lock_irq(shost->host_lock);
4280 vport->fc_flag |= FC_VPORT_CVL_RCVD;
4281 spin_unlock_irq(shost->host_lock);
4287 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4288 * @vport: pointer to lpfc hba data structure.
4290 * This routine is to perform Clear Virtual Link (CVL) on all vports in
4291 * response to a FCF dead event.
4294 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4296 struct lpfc_vport **vports;
4299 vports = lpfc_create_vport_work_array(phba);
4301 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4302 lpfc_sli4_perform_vport_cvl(vports[i]);
4303 lpfc_destroy_vport_work_array(phba, vports);
4307 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4308 * @phba: pointer to lpfc hba data structure.
4309 * @acqe_link: pointer to the async fcoe completion queue entry.
4311 * This routine is to handle the SLI4 asynchronous fcoe event.
4314 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4315 struct lpfc_acqe_fip *acqe_fip)
4317 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4319 struct lpfc_vport *vport;
4320 struct lpfc_nodelist *ndlp;
4321 struct Scsi_Host *shost;
4322 int active_vlink_present;
4323 struct lpfc_vport **vports;
4326 phba->fc_eventTag = acqe_fip->event_tag;
4327 phba->fcoe_eventtag = acqe_fip->event_tag;
4328 switch (event_type) {
4329 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4330 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4331 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4332 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4334 "2546 New FCF event, evt_tag:x%x, "
4336 acqe_fip->event_tag,
4339 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4341 "2788 FCF param modified event, "
4342 "evt_tag:x%x, index:x%x\n",
4343 acqe_fip->event_tag,
4345 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4347 * During period of FCF discovery, read the FCF
4348 * table record indexed by the event to update
4349 * FCF roundrobin failover eligible FCF bmask.
4351 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4353 "2779 Read FCF (x%x) for updating "
4354 "roundrobin FCF failover bmask\n",
4356 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4359 /* If the FCF discovery is in progress, do nothing. */
4360 spin_lock_irq(&phba->hbalock);
4361 if (phba->hba_flag & FCF_TS_INPROG) {
4362 spin_unlock_irq(&phba->hbalock);
4365 /* If fast FCF failover rescan event is pending, do nothing */
4366 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4367 spin_unlock_irq(&phba->hbalock);
4371 /* If the FCF has been in discovered state, do nothing. */
4372 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4373 spin_unlock_irq(&phba->hbalock);
4376 spin_unlock_irq(&phba->hbalock);
4378 /* Otherwise, scan the entire FCF table and re-discover SAN */
4379 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4380 "2770 Start FCF table scan per async FCF "
4381 "event, evt_tag:x%x, index:x%x\n",
4382 acqe_fip->event_tag, acqe_fip->index);
4383 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4384 LPFC_FCOE_FCF_GET_FIRST);
4386 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4387 "2547 Issue FCF scan read FCF mailbox "
4388 "command failed (x%x)\n", rc);
4391 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4392 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4393 "2548 FCF Table full count 0x%x tag 0x%x\n",
4394 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4395 acqe_fip->event_tag);
4398 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4399 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4400 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4401 "2549 FCF (x%x) disconnected from network, "
4402 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4404 * If we are in the middle of FCF failover process, clear
4405 * the corresponding FCF bit in the roundrobin bitmap.
4407 spin_lock_irq(&phba->hbalock);
4408 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4409 spin_unlock_irq(&phba->hbalock);
4410 /* Update FLOGI FCF failover eligible FCF bmask */
4411 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4414 spin_unlock_irq(&phba->hbalock);
4416 /* If the event is not for currently used fcf do nothing */
4417 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4421 * Otherwise, request the port to rediscover the entire FCF
4422 * table for a fast recovery from case that the current FCF
4423 * is no longer valid as we are not in the middle of FCF
4424 * failover process already.
4426 spin_lock_irq(&phba->hbalock);
4427 /* Mark the fast failover process in progress */
4428 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4429 spin_unlock_irq(&phba->hbalock);
4431 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4432 "2771 Start FCF fast failover process due to "
4433 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4434 "\n", acqe_fip->event_tag, acqe_fip->index);
4435 rc = lpfc_sli4_redisc_fcf_table(phba);
4437 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4439 "2772 Issue FCF rediscover mabilbox "
4440 "command failed, fail through to FCF "
4442 spin_lock_irq(&phba->hbalock);
4443 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4444 spin_unlock_irq(&phba->hbalock);
4446 * Last resort will fail over by treating this
4447 * as a link down to FCF registration.
4449 lpfc_sli4_fcf_dead_failthrough(phba);
4451 /* Reset FCF roundrobin bmask for new discovery */
4452 lpfc_sli4_clear_fcf_rr_bmask(phba);
4454 * Handling fast FCF failover to a DEAD FCF event is
4455 * considered equalivant to receiving CVL to all vports.
4457 lpfc_sli4_perform_all_vport_cvl(phba);
4460 case LPFC_FIP_EVENT_TYPE_CVL:
4461 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4462 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4463 "2718 Clear Virtual Link Received for VPI 0x%x"
4464 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4466 vport = lpfc_find_vport_by_vpid(phba,
4468 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4471 active_vlink_present = 0;
4473 vports = lpfc_create_vport_work_array(phba);
4475 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4477 if ((!(vports[i]->fc_flag &
4478 FC_VPORT_CVL_RCVD)) &&
4479 (vports[i]->port_state > LPFC_FDISC)) {
4480 active_vlink_present = 1;
4484 lpfc_destroy_vport_work_array(phba, vports);
4488 * Don't re-instantiate if vport is marked for deletion.
4489 * If we are here first then vport_delete is going to wait
4490 * for discovery to complete.
4492 if (!(vport->load_flag & FC_UNLOADING) &&
4493 active_vlink_present) {
4495 * If there are other active VLinks present,
4496 * re-instantiate the Vlink using FDISC.
4498 mod_timer(&ndlp->nlp_delayfunc,
4499 jiffies + msecs_to_jiffies(1000));
4500 shost = lpfc_shost_from_vport(vport);
4501 spin_lock_irq(shost->host_lock);
4502 ndlp->nlp_flag |= NLP_DELAY_TMO;
4503 spin_unlock_irq(shost->host_lock);
4504 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4505 vport->port_state = LPFC_FDISC;
4508 * Otherwise, we request port to rediscover
4509 * the entire FCF table for a fast recovery
4510 * from possible case that the current FCF
4511 * is no longer valid if we are not already
4512 * in the FCF failover process.
4514 spin_lock_irq(&phba->hbalock);
4515 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4516 spin_unlock_irq(&phba->hbalock);
4519 /* Mark the fast failover process in progress */
4520 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4521 spin_unlock_irq(&phba->hbalock);
4522 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4524 "2773 Start FCF failover per CVL, "
4525 "evt_tag:x%x\n", acqe_fip->event_tag);
4526 rc = lpfc_sli4_redisc_fcf_table(phba);
4528 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4530 "2774 Issue FCF rediscover "
4531 "mabilbox command failed, "
4532 "through to CVL event\n");
4533 spin_lock_irq(&phba->hbalock);
4534 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4535 spin_unlock_irq(&phba->hbalock);
4537 * Last resort will be re-try on the
4538 * the current registered FCF entry.
4540 lpfc_retry_pport_discovery(phba);
4543 * Reset FCF roundrobin bmask for new
4546 lpfc_sli4_clear_fcf_rr_bmask(phba);
4550 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4551 "0288 Unknown FCoE event type 0x%x event tag "
4552 "0x%x\n", event_type, acqe_fip->event_tag);
4558 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4559 * @phba: pointer to lpfc hba data structure.
4560 * @acqe_link: pointer to the async dcbx completion queue entry.
4562 * This routine is to handle the SLI4 asynchronous dcbx event.
4565 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4566 struct lpfc_acqe_dcbx *acqe_dcbx)
4568 phba->fc_eventTag = acqe_dcbx->event_tag;
4569 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4570 "0290 The SLI4 DCBX asynchronous event is not "
4575 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4576 * @phba: pointer to lpfc hba data structure.
4577 * @acqe_link: pointer to the async grp5 completion queue entry.
4579 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4580 * is an asynchronous notified of a logical link speed change. The Port
4581 * reports the logical link speed in units of 10Mbps.
4584 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4585 struct lpfc_acqe_grp5 *acqe_grp5)
4587 uint16_t prev_ll_spd;
4589 phba->fc_eventTag = acqe_grp5->event_tag;
4590 phba->fcoe_eventtag = acqe_grp5->event_tag;
4591 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4592 phba->sli4_hba.link_state.logical_speed =
4593 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4594 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4595 "2789 GRP5 Async Event: Updating logical link speed "
4596 "from %dMbps to %dMbps\n", prev_ll_spd,
4597 phba->sli4_hba.link_state.logical_speed);
4601 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4602 * @phba: pointer to lpfc hba data structure.
4604 * This routine is invoked by the worker thread to process all the pending
4605 * SLI4 asynchronous events.
4607 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4609 struct lpfc_cq_event *cq_event;
4611 /* First, declare the async event has been handled */
4612 spin_lock_irq(&phba->hbalock);
4613 phba->hba_flag &= ~ASYNC_EVENT;
4614 spin_unlock_irq(&phba->hbalock);
4615 /* Now, handle all the async events */
4616 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4617 /* Get the first event from the head of the event queue */
4618 spin_lock_irq(&phba->hbalock);
4619 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4620 cq_event, struct lpfc_cq_event, list);
4621 spin_unlock_irq(&phba->hbalock);
4622 /* Process the asynchronous event */
4623 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4624 case LPFC_TRAILER_CODE_LINK:
4625 lpfc_sli4_async_link_evt(phba,
4626 &cq_event->cqe.acqe_link);
4628 case LPFC_TRAILER_CODE_FCOE:
4629 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4631 case LPFC_TRAILER_CODE_DCBX:
4632 lpfc_sli4_async_dcbx_evt(phba,
4633 &cq_event->cqe.acqe_dcbx);
4635 case LPFC_TRAILER_CODE_GRP5:
4636 lpfc_sli4_async_grp5_evt(phba,
4637 &cq_event->cqe.acqe_grp5);
4639 case LPFC_TRAILER_CODE_FC:
4640 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4642 case LPFC_TRAILER_CODE_SLI:
4643 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4646 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4647 "1804 Invalid asynchrous event code: "
4648 "x%x\n", bf_get(lpfc_trailer_code,
4649 &cq_event->cqe.mcqe_cmpl));
4652 /* Free the completion event processed to the free pool */
4653 lpfc_sli4_cq_event_release(phba, cq_event);
4658 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4659 * @phba: pointer to lpfc hba data structure.
4661 * This routine is invoked by the worker thread to process FCF table
4662 * rediscovery pending completion event.
4664 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4668 spin_lock_irq(&phba->hbalock);
4669 /* Clear FCF rediscovery timeout event */
4670 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4671 /* Clear driver fast failover FCF record flag */
4672 phba->fcf.failover_rec.flag = 0;
4673 /* Set state for FCF fast failover */
4674 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4675 spin_unlock_irq(&phba->hbalock);
4677 /* Scan FCF table from the first entry to re-discover SAN */
4678 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4679 "2777 Start post-quiescent FCF table scan\n");
4680 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4682 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4683 "2747 Issue FCF scan read FCF mailbox "
4684 "command failed 0x%x\n", rc);
4688 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4689 * @phba: pointer to lpfc hba data structure.
4690 * @dev_grp: The HBA PCI-Device group number.
4692 * This routine is invoked to set up the per HBA PCI-Device group function
4693 * API jump table entries.
4695 * Return: 0 if success, otherwise -ENODEV
4698 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4702 /* Set up lpfc PCI-device group */
4703 phba->pci_dev_grp = dev_grp;
4705 /* The LPFC_PCI_DEV_OC uses SLI4 */
4706 if (dev_grp == LPFC_PCI_DEV_OC)
4707 phba->sli_rev = LPFC_SLI_REV4;
4709 /* Set up device INIT API function jump table */
4710 rc = lpfc_init_api_table_setup(phba, dev_grp);
4713 /* Set up SCSI API function jump table */
4714 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4717 /* Set up SLI API function jump table */
4718 rc = lpfc_sli_api_table_setup(phba, dev_grp);
4721 /* Set up MBOX API function jump table */
4722 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4730 * lpfc_log_intr_mode - Log the active interrupt mode
4731 * @phba: pointer to lpfc hba data structure.
4732 * @intr_mode: active interrupt mode adopted.
4734 * This routine it invoked to log the currently used active interrupt mode
4737 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4739 switch (intr_mode) {
4741 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4742 "0470 Enable INTx interrupt mode.\n");
4745 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4746 "0481 Enabled MSI interrupt mode.\n");
4749 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4750 "0480 Enabled MSI-X interrupt mode.\n");
4753 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4754 "0482 Illegal interrupt mode.\n");
4761 * lpfc_enable_pci_dev - Enable a generic PCI device.
4762 * @phba: pointer to lpfc hba data structure.
4764 * This routine is invoked to enable the PCI device that is common to all
4769 * other values - error
4772 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4774 struct pci_dev *pdev;
4777 /* Obtain PCI device reference */
4781 pdev = phba->pcidev;
4782 /* Select PCI BARs */
4783 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4784 /* Enable PCI device */
4785 if (pci_enable_device_mem(pdev))
4787 /* Request PCI resource for the device */
4788 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4789 goto out_disable_device;
4790 /* Set up device as PCI master and save state for EEH */
4791 pci_set_master(pdev);
4792 pci_try_set_mwi(pdev);
4793 pci_save_state(pdev);
4795 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4796 if (pci_is_pcie(pdev))
4797 pdev->needs_freset = 1;
4802 pci_disable_device(pdev);
4804 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4805 "1401 Failed to enable pci device, bars:x%x\n", bars);
4810 * lpfc_disable_pci_dev - Disable a generic PCI device.
4811 * @phba: pointer to lpfc hba data structure.
4813 * This routine is invoked to disable the PCI device that is common to all
4817 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4819 struct pci_dev *pdev;
4822 /* Obtain PCI device reference */
4826 pdev = phba->pcidev;
4827 /* Select PCI BARs */
4828 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4829 /* Release PCI resource and disable PCI device */
4830 pci_release_selected_regions(pdev, bars);
4831 pci_disable_device(pdev);
4837 * lpfc_reset_hba - Reset a hba
4838 * @phba: pointer to lpfc hba data structure.
4840 * This routine is invoked to reset a hba device. It brings the HBA
4841 * offline, performs a board restart, and then brings the board back
4842 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4843 * on outstanding mailbox commands.
4846 lpfc_reset_hba(struct lpfc_hba *phba)
4848 /* If resets are disabled then set error state and return. */
4849 if (!phba->cfg_enable_hba_reset) {
4850 phba->link_state = LPFC_HBA_ERROR;
4853 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
4854 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4856 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
4858 lpfc_sli_brdrestart(phba);
4860 lpfc_unblock_mgmt_io(phba);
4864 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4865 * @phba: pointer to lpfc hba data structure.
4867 * This function enables the PCI SR-IOV virtual functions to a physical
4868 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4869 * enable the number of virtual functions to the physical function. As
4870 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4871 * API call does not considered as an error condition for most of the device.
4874 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4876 struct pci_dev *pdev = phba->pcidev;
4880 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4884 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4889 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4890 * @phba: pointer to lpfc hba data structure.
4891 * @nr_vfn: number of virtual functions to be enabled.
4893 * This function enables the PCI SR-IOV virtual functions to a physical
4894 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4895 * enable the number of virtual functions to the physical function. As
4896 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4897 * API call does not considered as an error condition for most of the device.
4900 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4902 struct pci_dev *pdev = phba->pcidev;
4903 uint16_t max_nr_vfn;
4906 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4907 if (nr_vfn > max_nr_vfn) {
4908 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4909 "3057 Requested vfs (%d) greater than "
4910 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4914 rc = pci_enable_sriov(pdev, nr_vfn);
4916 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4917 "2806 Failed to enable sriov on this device "
4918 "with vfn number nr_vf:%d, rc:%d\n",
4921 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4922 "2807 Successful enable sriov on this device "
4923 "with vfn number nr_vf:%d\n", nr_vfn);
4928 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4929 * @phba: pointer to lpfc hba data structure.
4931 * This routine is invoked to set up the driver internal resources specific to
4932 * support the SLI-3 HBA device it attached to.
4936 * other values - error
4939 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4941 struct lpfc_sli *psli;
4945 * Initialize timers used by driver
4948 /* Heartbeat timer */
4949 init_timer(&phba->hb_tmofunc);
4950 phba->hb_tmofunc.function = lpfc_hb_timeout;
4951 phba->hb_tmofunc.data = (unsigned long)phba;
4954 /* MBOX heartbeat timer */
4955 init_timer(&psli->mbox_tmo);
4956 psli->mbox_tmo.function = lpfc_mbox_timeout;
4957 psli->mbox_tmo.data = (unsigned long) phba;
4958 /* FCP polling mode timer */
4959 init_timer(&phba->fcp_poll_timer);
4960 phba->fcp_poll_timer.function = lpfc_poll_timeout;
4961 phba->fcp_poll_timer.data = (unsigned long) phba;
4962 /* Fabric block timer */
4963 init_timer(&phba->fabric_block_timer);
4964 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4965 phba->fabric_block_timer.data = (unsigned long) phba;
4966 /* EA polling mode timer */
4967 init_timer(&phba->eratt_poll);
4968 phba->eratt_poll.function = lpfc_poll_eratt;
4969 phba->eratt_poll.data = (unsigned long) phba;
4971 /* Host attention work mask setup */
4972 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4973 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4975 /* Get all the module params for configuring this host */
4976 lpfc_get_cfgparam(phba);
4977 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4978 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4979 /* check for menlo minimum sg count */
4980 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4981 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4984 if (!phba->sli.ring)
4985 phba->sli.ring = (struct lpfc_sli_ring *)
4986 kzalloc(LPFC_SLI3_MAX_RING *
4987 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4988 if (!phba->sli.ring)
4992 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
4993 * used to create the sg_dma_buf_pool must be dynamically calculated.
4996 /* Initialize the host templates the configured values. */
4997 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4998 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5000 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5001 if (phba->cfg_enable_bg) {
5003 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5004 * the FCP rsp, and a BDE for each. Sice we have no control
5005 * over how many protection data segments the SCSI Layer
5006 * will hand us (ie: there could be one for every block
5007 * in the IO), we just allocate enough BDEs to accomidate
5008 * our max amount and we need to limit lpfc_sg_seg_cnt to
5009 * minimize the risk of running out.
5011 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5012 sizeof(struct fcp_rsp) +
5013 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5015 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5016 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5018 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5019 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5022 * The scsi_buf for a regular I/O will hold the FCP cmnd,
5023 * the FCP rsp, a BDE for each, and a BDE for up to
5024 * cfg_sg_seg_cnt data segments.
5026 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5027 sizeof(struct fcp_rsp) +
5028 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5030 /* Total BDEs in BPL for scsi_sg_list */
5031 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5034 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5035 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5036 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5037 phba->cfg_total_seg_cnt);
5039 phba->max_vpi = LPFC_MAX_VPI;
5040 /* This will be set to correct value after config_port mbox */
5041 phba->max_vports = 0;
5044 * Initialize the SLI Layer to run with lpfc HBAs.
5046 lpfc_sli_setup(phba);
5047 lpfc_sli_queue_setup(phba);
5049 /* Allocate device driver memory */
5050 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5054 * Enable sr-iov virtual functions if supported and configured
5055 * through the module parameter.
5057 if (phba->cfg_sriov_nr_virtfn > 0) {
5058 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5059 phba->cfg_sriov_nr_virtfn);
5061 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5062 "2808 Requested number of SR-IOV "
5063 "virtual functions (%d) is not "
5065 phba->cfg_sriov_nr_virtfn);
5066 phba->cfg_sriov_nr_virtfn = 0;
5074 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5075 * @phba: pointer to lpfc hba data structure.
5077 * This routine is invoked to unset the driver internal resources set up
5078 * specific for supporting the SLI-3 HBA device it attached to.
5081 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5083 /* Free device driver memory allocated */
5084 lpfc_mem_free_all(phba);
5090 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5091 * @phba: pointer to lpfc hba data structure.
5093 * This routine is invoked to set up the driver internal resources specific to
5094 * support the SLI-4 HBA device it attached to.
5098 * other values - error
5101 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5103 struct lpfc_vector_map_info *cpup;
5104 struct lpfc_sli *psli;
5105 LPFC_MBOXQ_t *mboxq;
5106 int rc, i, hbq_count, max_buf_size;
5107 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5108 struct lpfc_mqe *mqe;
5110 int fof_vectors = 0;
5112 /* Get all the module params for configuring this host */
5113 lpfc_get_cfgparam(phba);
5115 /* Before proceed, wait for POST done and device ready */
5116 rc = lpfc_sli4_post_status_check(phba);
5121 * Initialize timers used by driver
5124 /* Heartbeat timer */
5125 init_timer(&phba->hb_tmofunc);
5126 phba->hb_tmofunc.function = lpfc_hb_timeout;
5127 phba->hb_tmofunc.data = (unsigned long)phba;
5128 init_timer(&phba->rrq_tmr);
5129 phba->rrq_tmr.function = lpfc_rrq_timeout;
5130 phba->rrq_tmr.data = (unsigned long)phba;
5133 /* MBOX heartbeat timer */
5134 init_timer(&psli->mbox_tmo);
5135 psli->mbox_tmo.function = lpfc_mbox_timeout;
5136 psli->mbox_tmo.data = (unsigned long) phba;
5137 /* Fabric block timer */
5138 init_timer(&phba->fabric_block_timer);
5139 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
5140 phba->fabric_block_timer.data = (unsigned long) phba;
5141 /* EA polling mode timer */
5142 init_timer(&phba->eratt_poll);
5143 phba->eratt_poll.function = lpfc_poll_eratt;
5144 phba->eratt_poll.data = (unsigned long) phba;
5145 /* FCF rediscover timer */
5146 init_timer(&phba->fcf.redisc_wait);
5147 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
5148 phba->fcf.redisc_wait.data = (unsigned long)phba;
5151 * Control structure for handling external multi-buffer mailbox
5152 * command pass-through.
5154 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5155 sizeof(struct lpfc_mbox_ext_buf_ctx));
5156 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5158 phba->max_vpi = LPFC_MAX_VPI;
5160 /* This will be set to correct value after the read_config mbox */
5161 phba->max_vports = 0;
5163 /* Program the default value of vlan_id and fc_map */
5164 phba->valid_vlan = 0;
5165 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5166 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5167 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5170 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5171 * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
5173 if (!phba->sli.ring)
5174 phba->sli.ring = kzalloc(
5175 (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
5176 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5177 if (!phba->sli.ring)
5181 * It doesn't matter what family our adapter is in, we are
5182 * limited to 2 Pages, 512 SGEs, for our SGL.
5183 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5185 max_buf_size = (2 * SLI4_PAGE_SIZE);
5186 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5187 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5190 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5191 * used to create the sg_dma_buf_pool must be dynamically calculated.
5194 if (phba->cfg_enable_bg) {
5196 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5197 * the FCP rsp, and a SGE for each. Sice we have no control
5198 * over how many protection data segments the SCSI Layer
5199 * will hand us (ie: there could be one for every block
5200 * in the IO), we just allocate enough SGEs to accomidate
5201 * our max amount and we need to limit lpfc_sg_seg_cnt to
5202 * minimize the risk of running out.
5204 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5205 sizeof(struct fcp_rsp) + max_buf_size;
5207 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5208 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5210 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5211 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5214 * The scsi_buf for a regular I/O will hold the FCP cmnd,
5215 * the FCP rsp, a SGE for each, and a SGE for up to
5216 * cfg_sg_seg_cnt data segments.
5218 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5219 sizeof(struct fcp_rsp) +
5220 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
5222 /* Total SGEs for scsi_sg_list */
5223 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5225 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
5226 * to post 1 page for the SGL.
5230 /* Initialize the host templates with the updated values. */
5231 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5232 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5234 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ)
5235 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5237 phba->cfg_sg_dma_buf_size =
5238 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5240 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5241 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5242 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5243 phba->cfg_total_seg_cnt);
5245 /* Initialize buffer queue management fields */
5246 hbq_count = lpfc_sli_hbq_count();
5247 for (i = 0; i < hbq_count; ++i)
5248 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5249 INIT_LIST_HEAD(&phba->rb_pend_list);
5250 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5251 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5254 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5256 /* Initialize the Abort scsi buffer list used by driver */
5257 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5258 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5259 /* This abort list used by worker thread */
5260 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
5263 * Initialize driver internal slow-path work queues
5266 /* Driver internel slow-path CQ Event pool */
5267 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5268 /* Response IOCB work queue list */
5269 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5270 /* Asynchronous event CQ Event work queue list */
5271 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5272 /* Fast-path XRI aborted CQ Event work queue list */
5273 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5274 /* Slow-path XRI aborted CQ Event work queue list */
5275 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5276 /* Receive queue CQ Event work queue list */
5277 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5279 /* Initialize extent block lists. */
5280 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5281 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5282 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5283 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5285 /* Initialize the driver internal SLI layer lists. */
5286 lpfc_sli_setup(phba);
5287 lpfc_sli_queue_setup(phba);
5289 /* Allocate device driver memory */
5290 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5294 /* IF Type 2 ports get initialized now. */
5295 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5296 LPFC_SLI_INTF_IF_TYPE_2) {
5297 rc = lpfc_pci_function_reset(phba);
5300 phba->temp_sensor_support = 1;
5303 /* Create the bootstrap mailbox command */
5304 rc = lpfc_create_bootstrap_mbox(phba);
5308 /* Set up the host's endian order with the device. */
5309 rc = lpfc_setup_endian_order(phba);
5311 goto out_free_bsmbx;
5313 /* Set up the hba's configuration parameters. */
5314 rc = lpfc_sli4_read_config(phba);
5316 goto out_free_bsmbx;
5317 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
5319 goto out_free_bsmbx;
5321 /* IF Type 0 ports get initialized now. */
5322 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5323 LPFC_SLI_INTF_IF_TYPE_0) {
5324 rc = lpfc_pci_function_reset(phba);
5326 goto out_free_bsmbx;
5329 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5333 goto out_free_bsmbx;
5336 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5337 lpfc_supported_pages(mboxq);
5338 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5340 mqe = &mboxq->u.mqe;
5341 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5342 LPFC_MAX_SUPPORTED_PAGES);
5343 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5344 switch (pn_page[i]) {
5345 case LPFC_SLI4_PARAMETERS:
5346 phba->sli4_hba.pc_sli4_params.supported = 1;
5352 /* Read the port's SLI4 Parameters capabilities if supported. */
5353 if (phba->sli4_hba.pc_sli4_params.supported)
5354 rc = lpfc_pc_sli4_params_get(phba, mboxq);
5356 mempool_free(mboxq, phba->mbox_mem_pool);
5358 goto out_free_bsmbx;
5362 * Get sli4 parameters that override parameters from Port capabilities.
5363 * If this call fails, it isn't critical unless the SLI4 parameters come
5366 rc = lpfc_get_sli4_parameters(phba, mboxq);
5368 if (phba->sli4_hba.extents_in_use &&
5369 phba->sli4_hba.rpi_hdrs_in_use) {
5370 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5371 "2999 Unsupported SLI4 Parameters "
5372 "Extents and RPI headers enabled.\n");
5373 goto out_free_bsmbx;
5376 mempool_free(mboxq, phba->mbox_mem_pool);
5378 /* Verify OAS is supported */
5379 lpfc_sli4_oas_verify(phba);
5383 /* Verify all the SLI4 queues */
5384 rc = lpfc_sli4_queue_verify(phba);
5386 goto out_free_bsmbx;
5388 /* Create driver internal CQE event pool */
5389 rc = lpfc_sli4_cq_event_pool_create(phba);
5391 goto out_free_bsmbx;
5393 /* Initialize sgl lists per host */
5394 lpfc_init_sgl_list(phba);
5396 /* Allocate and initialize active sgl array */
5397 rc = lpfc_init_active_sgl_array(phba);
5399 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5400 "1430 Failed to initialize sgl list.\n");
5401 goto out_destroy_cq_event_pool;
5403 rc = lpfc_sli4_init_rpi_hdrs(phba);
5405 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5406 "1432 Failed to initialize rpi headers.\n");
5407 goto out_free_active_sgl;
5410 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5411 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5412 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5414 if (!phba->fcf.fcf_rr_bmask) {
5415 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5416 "2759 Failed allocate memory for FCF round "
5417 "robin failover bmask\n");
5419 goto out_remove_rpi_hdrs;
5422 phba->sli4_hba.fcp_eq_hdl =
5423 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5424 (fof_vectors + phba->cfg_fcp_io_channel)),
5426 if (!phba->sli4_hba.fcp_eq_hdl) {
5427 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5428 "2572 Failed allocate memory for "
5429 "fast-path per-EQ handle array\n");
5431 goto out_free_fcf_rr_bmask;
5434 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5436 phba->cfg_fcp_io_channel)), GFP_KERNEL);
5437 if (!phba->sli4_hba.msix_entries) {
5438 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5439 "2573 Failed allocate memory for msi-x "
5440 "interrupt vector entries\n");
5442 goto out_free_fcp_eq_hdl;
5445 phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5446 phba->sli4_hba.num_present_cpu),
5448 if (!phba->sli4_hba.cpu_map) {
5449 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5450 "3327 Failed allocate memory for msi-x "
5451 "interrupt vector mapping\n");
5455 if (lpfc_used_cpu == NULL) {
5456 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
5458 if (!lpfc_used_cpu) {
5459 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5460 "3335 Failed allocate memory for msi-x "
5461 "interrupt vector mapping\n");
5462 kfree(phba->sli4_hba.cpu_map);
5466 for (i = 0; i < lpfc_present_cpu; i++)
5467 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
5470 /* Initialize io channels for round robin */
5471 cpup = phba->sli4_hba.cpu_map;
5473 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5474 cpup->channel_id = rc;
5476 if (rc >= phba->cfg_fcp_io_channel)
5481 * Enable sr-iov virtual functions if supported and configured
5482 * through the module parameter.
5484 if (phba->cfg_sriov_nr_virtfn > 0) {
5485 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5486 phba->cfg_sriov_nr_virtfn);
5488 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5489 "3020 Requested number of SR-IOV "
5490 "virtual functions (%d) is not "
5492 phba->cfg_sriov_nr_virtfn);
5493 phba->cfg_sriov_nr_virtfn = 0;
5500 kfree(phba->sli4_hba.msix_entries);
5501 out_free_fcp_eq_hdl:
5502 kfree(phba->sli4_hba.fcp_eq_hdl);
5503 out_free_fcf_rr_bmask:
5504 kfree(phba->fcf.fcf_rr_bmask);
5505 out_remove_rpi_hdrs:
5506 lpfc_sli4_remove_rpi_hdrs(phba);
5507 out_free_active_sgl:
5508 lpfc_free_active_sgl(phba);
5509 out_destroy_cq_event_pool:
5510 lpfc_sli4_cq_event_pool_destroy(phba);
5512 lpfc_destroy_bootstrap_mbox(phba);
5514 lpfc_mem_free(phba);
5519 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5520 * @phba: pointer to lpfc hba data structure.
5522 * This routine is invoked to unset the driver internal resources set up
5523 * specific for supporting the SLI-4 HBA device it attached to.
5526 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5528 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5530 /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5531 kfree(phba->sli4_hba.cpu_map);
5532 phba->sli4_hba.num_present_cpu = 0;
5533 phba->sli4_hba.num_online_cpu = 0;
5534 phba->sli4_hba.curr_disp_cpu = 0;
5536 /* Free memory allocated for msi-x interrupt vector entries */
5537 kfree(phba->sli4_hba.msix_entries);
5539 /* Free memory allocated for fast-path work queue handles */
5540 kfree(phba->sli4_hba.fcp_eq_hdl);
5542 /* Free the allocated rpi headers. */
5543 lpfc_sli4_remove_rpi_hdrs(phba);
5544 lpfc_sli4_remove_rpis(phba);
5546 /* Free eligible FCF index bmask */
5547 kfree(phba->fcf.fcf_rr_bmask);
5549 /* Free the ELS sgl list */
5550 lpfc_free_active_sgl(phba);
5551 lpfc_free_els_sgl_list(phba);
5553 /* Free the completion queue EQ event pool */
5554 lpfc_sli4_cq_event_release_all(phba);
5555 lpfc_sli4_cq_event_pool_destroy(phba);
5557 /* Release resource identifiers. */
5558 lpfc_sli4_dealloc_resource_identifiers(phba);
5560 /* Free the bsmbx region. */
5561 lpfc_destroy_bootstrap_mbox(phba);
5563 /* Free the SLI Layer memory with SLI4 HBAs */
5564 lpfc_mem_free_all(phba);
5566 /* Free the current connect table */
5567 list_for_each_entry_safe(conn_entry, next_conn_entry,
5568 &phba->fcf_conn_rec_list, list) {
5569 list_del_init(&conn_entry->list);
5577 * lpfc_init_api_table_setup - Set up init api function jump table
5578 * @phba: The hba struct for which this call is being executed.
5579 * @dev_grp: The HBA PCI-Device group number.
5581 * This routine sets up the device INIT interface API function jump table
5584 * Returns: 0 - success, -ENODEV - failure.
5587 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5589 phba->lpfc_hba_init_link = lpfc_hba_init_link;
5590 phba->lpfc_hba_down_link = lpfc_hba_down_link;
5591 phba->lpfc_selective_reset = lpfc_selective_reset;
5593 case LPFC_PCI_DEV_LP:
5594 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5595 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5596 phba->lpfc_stop_port = lpfc_stop_port_s3;
5598 case LPFC_PCI_DEV_OC:
5599 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5600 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5601 phba->lpfc_stop_port = lpfc_stop_port_s4;
5604 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5605 "1431 Invalid HBA PCI-device group: 0x%x\n",
5614 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5615 * @phba: pointer to lpfc hba data structure.
5617 * This routine is invoked to set up the driver internal resources before the
5618 * device specific resource setup to support the HBA device it attached to.
5622 * other values - error
5625 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5628 * Driver resources common to all SLI revisions
5630 atomic_set(&phba->fast_event_count, 0);
5631 spin_lock_init(&phba->hbalock);
5633 /* Initialize ndlp management spinlock */
5634 spin_lock_init(&phba->ndlp_lock);
5636 INIT_LIST_HEAD(&phba->port_list);
5637 INIT_LIST_HEAD(&phba->work_list);
5638 init_waitqueue_head(&phba->wait_4_mlo_m_q);
5640 /* Initialize the wait queue head for the kernel thread */
5641 init_waitqueue_head(&phba->work_waitq);
5643 /* Initialize the scsi buffer list used by driver for scsi IO */
5644 spin_lock_init(&phba->scsi_buf_list_get_lock);
5645 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5646 spin_lock_init(&phba->scsi_buf_list_put_lock);
5647 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5649 /* Initialize the fabric iocb list */
5650 INIT_LIST_HEAD(&phba->fabric_iocb_list);
5652 /* Initialize list to save ELS buffers */
5653 INIT_LIST_HEAD(&phba->elsbuf);
5655 /* Initialize FCF connection rec list */
5656 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5658 /* Initialize OAS configuration list */
5659 spin_lock_init(&phba->devicelock);
5660 INIT_LIST_HEAD(&phba->luns);
5666 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5667 * @phba: pointer to lpfc hba data structure.
5669 * This routine is invoked to set up the driver internal resources after the
5670 * device specific resource setup to support the HBA device it attached to.
5674 * other values - error
5677 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5681 /* Startup the kernel thread for this host adapter. */
5682 phba->worker_thread = kthread_run(lpfc_do_work, phba,
5683 "lpfc_worker_%d", phba->brd_no);
5684 if (IS_ERR(phba->worker_thread)) {
5685 error = PTR_ERR(phba->worker_thread);
5693 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5694 * @phba: pointer to lpfc hba data structure.
5696 * This routine is invoked to unset the driver internal resources set up after
5697 * the device specific resource setup for supporting the HBA device it
5701 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5703 /* Stop kernel worker thread */
5704 kthread_stop(phba->worker_thread);
5708 * lpfc_free_iocb_list - Free iocb list.
5709 * @phba: pointer to lpfc hba data structure.
5711 * This routine is invoked to free the driver's IOCB list and memory.
5714 lpfc_free_iocb_list(struct lpfc_hba *phba)
5716 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5718 spin_lock_irq(&phba->hbalock);
5719 list_for_each_entry_safe(iocbq_entry, iocbq_next,
5720 &phba->lpfc_iocb_list, list) {
5721 list_del(&iocbq_entry->list);
5723 phba->total_iocbq_bufs--;
5725 spin_unlock_irq(&phba->hbalock);
5731 * lpfc_init_iocb_list - Allocate and initialize iocb list.
5732 * @phba: pointer to lpfc hba data structure.
5734 * This routine is invoked to allocate and initizlize the driver's IOCB
5735 * list and set up the IOCB tag array accordingly.
5739 * other values - error
5742 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5744 struct lpfc_iocbq *iocbq_entry = NULL;
5748 /* Initialize and populate the iocb list per host. */
5749 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5750 for (i = 0; i < iocb_count; i++) {
5751 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5752 if (iocbq_entry == NULL) {
5753 printk(KERN_ERR "%s: only allocated %d iocbs of "
5754 "expected %d count. Unloading driver.\n",
5755 __func__, i, LPFC_IOCB_LIST_CNT);
5756 goto out_free_iocbq;
5759 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5762 printk(KERN_ERR "%s: failed to allocate IOTAG. "
5763 "Unloading driver.\n", __func__);
5764 goto out_free_iocbq;
5766 iocbq_entry->sli4_lxritag = NO_XRI;
5767 iocbq_entry->sli4_xritag = NO_XRI;
5769 spin_lock_irq(&phba->hbalock);
5770 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5771 phba->total_iocbq_bufs++;
5772 spin_unlock_irq(&phba->hbalock);
5778 lpfc_free_iocb_list(phba);
5784 * lpfc_free_sgl_list - Free a given sgl list.
5785 * @phba: pointer to lpfc hba data structure.
5786 * @sglq_list: pointer to the head of sgl list.
5788 * This routine is invoked to free a give sgl list and memory.
5791 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5793 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5795 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5796 list_del(&sglq_entry->list);
5797 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5803 * lpfc_free_els_sgl_list - Free els sgl list.
5804 * @phba: pointer to lpfc hba data structure.
5806 * This routine is invoked to free the driver's els sgl list and memory.
5809 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5811 LIST_HEAD(sglq_list);
5812 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
5814 /* Retrieve all els sgls from driver list */
5815 spin_lock_irq(&phba->hbalock);
5816 spin_lock(&pring->ring_lock);
5817 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5818 spin_unlock(&pring->ring_lock);
5819 spin_unlock_irq(&phba->hbalock);
5821 /* Now free the sgl list */
5822 lpfc_free_sgl_list(phba, &sglq_list);
5826 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5827 * @phba: pointer to lpfc hba data structure.
5829 * This routine is invoked to allocate the driver's active sgl memory.
5830 * This array will hold the sglq_entry's for active IOs.
5833 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5836 size = sizeof(struct lpfc_sglq *);
5837 size *= phba->sli4_hba.max_cfg_param.max_xri;
5839 phba->sli4_hba.lpfc_sglq_active_list =
5840 kzalloc(size, GFP_KERNEL);
5841 if (!phba->sli4_hba.lpfc_sglq_active_list)
5847 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5848 * @phba: pointer to lpfc hba data structure.
5850 * This routine is invoked to walk through the array of active sglq entries
5851 * and free all of the resources.
5852 * This is just a place holder for now.
5855 lpfc_free_active_sgl(struct lpfc_hba *phba)
5857 kfree(phba->sli4_hba.lpfc_sglq_active_list);
5861 * lpfc_init_sgl_list - Allocate and initialize sgl list.
5862 * @phba: pointer to lpfc hba data structure.
5864 * This routine is invoked to allocate and initizlize the driver's sgl
5865 * list and set up the sgl xritag tag array accordingly.
5869 lpfc_init_sgl_list(struct lpfc_hba *phba)
5871 /* Initialize and populate the sglq list per host/VF. */
5872 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5873 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5875 /* els xri-sgl book keeping */
5876 phba->sli4_hba.els_xri_cnt = 0;
5878 /* scsi xri-buffer book keeping */
5879 phba->sli4_hba.scsi_xri_cnt = 0;
5883 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5884 * @phba: pointer to lpfc hba data structure.
5886 * This routine is invoked to post rpi header templates to the
5887 * port for those SLI4 ports that do not support extents. This routine
5888 * posts a PAGE_SIZE memory region to the port to hold up to
5889 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
5890 * and should be called only when interrupts are disabled.
5894 * -ERROR - otherwise.
5897 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5900 struct lpfc_rpi_hdr *rpi_hdr;
5902 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5903 if (!phba->sli4_hba.rpi_hdrs_in_use)
5905 if (phba->sli4_hba.extents_in_use)
5908 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5910 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5911 "0391 Error during rpi post operation\n");
5912 lpfc_sli4_remove_rpis(phba);
5920 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5921 * @phba: pointer to lpfc hba data structure.
5923 * This routine is invoked to allocate a single 4KB memory region to
5924 * support rpis and stores them in the phba. This single region
5925 * provides support for up to 64 rpis. The region is used globally
5929 * A valid rpi hdr on success.
5930 * A NULL pointer on any failure.
5932 struct lpfc_rpi_hdr *
5933 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5935 uint16_t rpi_limit, curr_rpi_range;
5936 struct lpfc_dmabuf *dmabuf;
5937 struct lpfc_rpi_hdr *rpi_hdr;
5941 * If the SLI4 port supports extents, posting the rpi header isn't
5942 * required. Set the expected maximum count and let the actual value
5943 * get set when extents are fully allocated.
5945 if (!phba->sli4_hba.rpi_hdrs_in_use)
5947 if (phba->sli4_hba.extents_in_use)
5950 /* The limit on the logical index is just the max_rpi count. */
5951 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5952 phba->sli4_hba.max_cfg_param.max_rpi - 1;
5954 spin_lock_irq(&phba->hbalock);
5956 * Establish the starting RPI in this header block. The starting
5957 * rpi is normalized to a zero base because the physical rpi is
5960 curr_rpi_range = phba->sli4_hba.next_rpi;
5961 spin_unlock_irq(&phba->hbalock);
5964 * The port has a limited number of rpis. The increment here
5965 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5966 * and to allow the full max_rpi range per port.
5968 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5969 rpi_count = rpi_limit - curr_rpi_range;
5971 rpi_count = LPFC_RPI_HDR_COUNT;
5976 * First allocate the protocol header region for the port. The
5977 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5979 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5983 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
5984 LPFC_HDR_TEMPLATE_SIZE,
5985 &dmabuf->phys, GFP_KERNEL);
5986 if (!dmabuf->virt) {
5988 goto err_free_dmabuf;
5991 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5993 goto err_free_coherent;
5996 /* Save the rpi header data for cleanup later. */
5997 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5999 goto err_free_coherent;
6001 rpi_hdr->dmabuf = dmabuf;
6002 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6003 rpi_hdr->page_count = 1;
6004 spin_lock_irq(&phba->hbalock);
6006 /* The rpi_hdr stores the logical index only. */
6007 rpi_hdr->start_rpi = curr_rpi_range;
6008 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6011 * The next_rpi stores the next logical module-64 rpi value used
6012 * to post physical rpis in subsequent rpi postings.
6014 phba->sli4_hba.next_rpi += rpi_count;
6015 spin_unlock_irq(&phba->hbalock);
6019 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6020 dmabuf->virt, dmabuf->phys);
6027 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6028 * @phba: pointer to lpfc hba data structure.
6030 * This routine is invoked to remove all memory resources allocated
6031 * to support rpis for SLI4 ports not supporting extents. This routine
6032 * presumes the caller has released all rpis consumed by fabric or port
6033 * logins and is prepared to have the header pages removed.
6036 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6038 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6040 if (!phba->sli4_hba.rpi_hdrs_in_use)
6043 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6044 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6045 list_del(&rpi_hdr->list);
6046 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6047 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6048 kfree(rpi_hdr->dmabuf);
6052 /* There are no rpis available to the port now. */
6053 phba->sli4_hba.next_rpi = 0;
6057 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6058 * @pdev: pointer to pci device data structure.
6060 * This routine is invoked to allocate the driver hba data structure for an
6061 * HBA device. If the allocation is successful, the phba reference to the
6062 * PCI device data structure is set.
6065 * pointer to @phba - successful
6068 static struct lpfc_hba *
6069 lpfc_hba_alloc(struct pci_dev *pdev)
6071 struct lpfc_hba *phba;
6073 /* Allocate memory for HBA structure */
6074 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6076 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6080 /* Set reference to PCI device in HBA structure */
6081 phba->pcidev = pdev;
6083 /* Assign an unused board number */
6084 phba->brd_no = lpfc_get_instance();
6085 if (phba->brd_no < 0) {
6090 spin_lock_init(&phba->ct_ev_lock);
6091 INIT_LIST_HEAD(&phba->ct_ev_waiters);
6097 * lpfc_hba_free - Free driver hba data structure with a device.
6098 * @phba: pointer to lpfc hba data structure.
6100 * This routine is invoked to free the driver hba data structure with an
6104 lpfc_hba_free(struct lpfc_hba *phba)
6106 /* Release the driver assigned board number */
6107 idr_remove(&lpfc_hba_index, phba->brd_no);
6109 /* Free memory allocated with sli rings */
6110 kfree(phba->sli.ring);
6111 phba->sli.ring = NULL;
6118 * lpfc_create_shost - Create hba physical port with associated scsi host.
6119 * @phba: pointer to lpfc hba data structure.
6121 * This routine is invoked to create HBA physical port and associate a SCSI
6126 * other values - error
6129 lpfc_create_shost(struct lpfc_hba *phba)
6131 struct lpfc_vport *vport;
6132 struct Scsi_Host *shost;
6134 /* Initialize HBA FC structure */
6135 phba->fc_edtov = FF_DEF_EDTOV;
6136 phba->fc_ratov = FF_DEF_RATOV;
6137 phba->fc_altov = FF_DEF_ALTOV;
6138 phba->fc_arbtov = FF_DEF_ARBTOV;
6140 atomic_set(&phba->sdev_cnt, 0);
6141 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6145 shost = lpfc_shost_from_vport(vport);
6146 phba->pport = vport;
6147 lpfc_debugfs_initialize(vport);
6148 /* Put reference to SCSI host to driver's device private data */
6149 pci_set_drvdata(phba->pcidev, shost);
6155 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6156 * @phba: pointer to lpfc hba data structure.
6158 * This routine is invoked to destroy HBA physical port and the associated
6162 lpfc_destroy_shost(struct lpfc_hba *phba)
6164 struct lpfc_vport *vport = phba->pport;
6166 /* Destroy physical port that associated with the SCSI host */
6167 destroy_port(vport);
6173 * lpfc_setup_bg - Setup Block guard structures and debug areas.
6174 * @phba: pointer to lpfc hba data structure.
6175 * @shost: the shost to be used to detect Block guard settings.
6177 * This routine sets up the local Block guard protocol settings for @shost.
6178 * This routine also allocates memory for debugging bg buffers.
6181 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6187 if (lpfc_prot_mask && lpfc_prot_guard) {
6188 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6189 "1478 Registering BlockGuard with the "
6192 old_mask = lpfc_prot_mask;
6193 old_guard = lpfc_prot_guard;
6195 /* Only allow supported values */
6196 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6197 SHOST_DIX_TYPE0_PROTECTION |
6198 SHOST_DIX_TYPE1_PROTECTION);
6199 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
6201 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6202 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6203 lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6205 if (lpfc_prot_mask && lpfc_prot_guard) {
6206 if ((old_mask != lpfc_prot_mask) ||
6207 (old_guard != lpfc_prot_guard))
6208 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6209 "1475 Registering BlockGuard with the "
6210 "SCSI layer: mask %d guard %d\n",
6211 lpfc_prot_mask, lpfc_prot_guard);
6213 scsi_host_set_prot(shost, lpfc_prot_mask);
6214 scsi_host_set_guard(shost, lpfc_prot_guard);
6216 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6217 "1479 Not Registering BlockGuard with the SCSI "
6218 "layer, Bad protection parameters: %d %d\n",
6219 old_mask, old_guard);
6222 if (!_dump_buf_data) {
6224 spin_lock_init(&_dump_buf_lock);
6226 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6227 if (_dump_buf_data) {
6228 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6229 "9043 BLKGRD: allocated %d pages for "
6230 "_dump_buf_data at 0x%p\n",
6231 (1 << pagecnt), _dump_buf_data);
6232 _dump_buf_data_order = pagecnt;
6233 memset(_dump_buf_data, 0,
6234 ((1 << PAGE_SHIFT) << pagecnt));
6239 if (!_dump_buf_data_order)
6240 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6241 "9044 BLKGRD: ERROR unable to allocate "
6242 "memory for hexdump\n");
6244 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6245 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
6246 "\n", _dump_buf_data);
6247 if (!_dump_buf_dif) {
6250 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6251 if (_dump_buf_dif) {
6252 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6253 "9046 BLKGRD: allocated %d pages for "
6254 "_dump_buf_dif at 0x%p\n",
6255 (1 << pagecnt), _dump_buf_dif);
6256 _dump_buf_dif_order = pagecnt;
6257 memset(_dump_buf_dif, 0,
6258 ((1 << PAGE_SHIFT) << pagecnt));
6263 if (!_dump_buf_dif_order)
6264 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6265 "9047 BLKGRD: ERROR unable to allocate "
6266 "memory for hexdump\n");
6268 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6269 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6274 * lpfc_post_init_setup - Perform necessary device post initialization setup.
6275 * @phba: pointer to lpfc hba data structure.
6277 * This routine is invoked to perform all the necessary post initialization
6278 * setup for the device.
6281 lpfc_post_init_setup(struct lpfc_hba *phba)
6283 struct Scsi_Host *shost;
6284 struct lpfc_adapter_event_header adapter_event;
6286 /* Get the default values for Model Name and Description */
6287 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6290 * hba setup may have changed the hba_queue_depth so we need to
6291 * adjust the value of can_queue.
6293 shost = pci_get_drvdata(phba->pcidev);
6294 shost->can_queue = phba->cfg_hba_queue_depth - 10;
6295 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6296 lpfc_setup_bg(phba, shost);
6298 lpfc_host_attrib_init(shost);
6300 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6301 spin_lock_irq(shost->host_lock);
6302 lpfc_poll_start_timer(phba);
6303 spin_unlock_irq(shost->host_lock);
6306 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6307 "0428 Perform SCSI scan\n");
6308 /* Send board arrival event to upper layer */
6309 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6310 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6311 fc_host_post_vendor_event(shost, fc_get_event_number(),
6312 sizeof(adapter_event),
6313 (char *) &adapter_event,
6319 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6320 * @phba: pointer to lpfc hba data structure.
6322 * This routine is invoked to set up the PCI device memory space for device
6323 * with SLI-3 interface spec.
6327 * other values - error
6330 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6332 struct pci_dev *pdev;
6333 unsigned long bar0map_len, bar2map_len;
6336 int error = -ENODEV;
6338 /* Obtain PCI device reference */
6342 pdev = phba->pcidev;
6344 /* Set the device DMA mask size */
6345 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6346 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6347 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6348 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6353 /* Get the bus address of Bar0 and Bar2 and the number of bytes
6354 * required by each mapping.
6356 phba->pci_bar0_map = pci_resource_start(pdev, 0);
6357 bar0map_len = pci_resource_len(pdev, 0);
6359 phba->pci_bar2_map = pci_resource_start(pdev, 2);
6360 bar2map_len = pci_resource_len(pdev, 2);
6362 /* Map HBA SLIM to a kernel virtual address. */
6363 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6364 if (!phba->slim_memmap_p) {
6365 dev_printk(KERN_ERR, &pdev->dev,
6366 "ioremap failed for SLIM memory.\n");
6370 /* Map HBA Control Registers to a kernel virtual address. */
6371 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6372 if (!phba->ctrl_regs_memmap_p) {
6373 dev_printk(KERN_ERR, &pdev->dev,
6374 "ioremap failed for HBA control registers.\n");
6375 goto out_iounmap_slim;
6378 /* Allocate memory for SLI-2 structures */
6379 phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6380 &phba->slim2p.phys, GFP_KERNEL);
6381 if (!phba->slim2p.virt)
6384 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6385 phba->mbox_ext = (phba->slim2p.virt +
6386 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6387 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6388 phba->IOCBs = (phba->slim2p.virt +
6389 offsetof(struct lpfc_sli2_slim, IOCBs));
6391 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6392 lpfc_sli_hbq_size(),
6393 &phba->hbqslimp.phys,
6395 if (!phba->hbqslimp.virt)
6398 hbq_count = lpfc_sli_hbq_count();
6399 ptr = phba->hbqslimp.virt;
6400 for (i = 0; i < hbq_count; ++i) {
6401 phba->hbqs[i].hbq_virt = ptr;
6402 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6403 ptr += (lpfc_hbq_defs[i]->entry_count *
6404 sizeof(struct lpfc_hbq_entry));
6406 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6407 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6409 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6411 INIT_LIST_HEAD(&phba->rb_pend_list);
6413 phba->MBslimaddr = phba->slim_memmap_p;
6414 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6415 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6416 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6417 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6422 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6423 phba->slim2p.virt, phba->slim2p.phys);
6425 iounmap(phba->ctrl_regs_memmap_p);
6427 iounmap(phba->slim_memmap_p);
6433 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6434 * @phba: pointer to lpfc hba data structure.
6436 * This routine is invoked to unset the PCI device memory space for device
6437 * with SLI-3 interface spec.
6440 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6442 struct pci_dev *pdev;
6444 /* Obtain PCI device reference */
6448 pdev = phba->pcidev;
6450 /* Free coherent DMA memory allocated */
6451 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6452 phba->hbqslimp.virt, phba->hbqslimp.phys);
6453 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6454 phba->slim2p.virt, phba->slim2p.phys);
6456 /* I/O memory unmap */
6457 iounmap(phba->ctrl_regs_memmap_p);
6458 iounmap(phba->slim_memmap_p);
6464 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6465 * @phba: pointer to lpfc hba data structure.
6467 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6468 * done and check status.
6470 * Return 0 if successful, otherwise -ENODEV.
6473 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6475 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6476 struct lpfc_register reg_data;
6477 int i, port_error = 0;
6480 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6481 memset(®_data, 0, sizeof(reg_data));
6482 if (!phba->sli4_hba.PSMPHRregaddr)
6485 /* Wait up to 30 seconds for the SLI Port POST done and ready */
6486 for (i = 0; i < 3000; i++) {
6487 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6488 &portsmphr_reg.word0) ||
6489 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6490 /* Port has a fatal POST error, break out */
6491 port_error = -ENODEV;
6494 if (LPFC_POST_STAGE_PORT_READY ==
6495 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6501 * If there was a port error during POST, then don't proceed with
6502 * other register reads as the data may not be valid. Just exit.
6505 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6506 "1408 Port Failed POST - portsmphr=0x%x, "
6507 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6508 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6509 portsmphr_reg.word0,
6510 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6511 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6512 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6513 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6514 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6515 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6516 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6517 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6519 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6520 "2534 Device Info: SLIFamily=0x%x, "
6521 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6522 "SLIHint_2=0x%x, FT=0x%x\n",
6523 bf_get(lpfc_sli_intf_sli_family,
6524 &phba->sli4_hba.sli_intf),
6525 bf_get(lpfc_sli_intf_slirev,
6526 &phba->sli4_hba.sli_intf),
6527 bf_get(lpfc_sli_intf_if_type,
6528 &phba->sli4_hba.sli_intf),
6529 bf_get(lpfc_sli_intf_sli_hint1,
6530 &phba->sli4_hba.sli_intf),
6531 bf_get(lpfc_sli_intf_sli_hint2,
6532 &phba->sli4_hba.sli_intf),
6533 bf_get(lpfc_sli_intf_func_type,
6534 &phba->sli4_hba.sli_intf));
6536 * Check for other Port errors during the initialization
6537 * process. Fail the load if the port did not come up
6540 if_type = bf_get(lpfc_sli_intf_if_type,
6541 &phba->sli4_hba.sli_intf);
6543 case LPFC_SLI_INTF_IF_TYPE_0:
6544 phba->sli4_hba.ue_mask_lo =
6545 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6546 phba->sli4_hba.ue_mask_hi =
6547 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6549 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6551 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6552 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6553 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6554 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6555 "1422 Unrecoverable Error "
6556 "Detected during POST "
6557 "uerr_lo_reg=0x%x, "
6558 "uerr_hi_reg=0x%x, "
6559 "ue_mask_lo_reg=0x%x, "
6560 "ue_mask_hi_reg=0x%x\n",
6563 phba->sli4_hba.ue_mask_lo,
6564 phba->sli4_hba.ue_mask_hi);
6565 port_error = -ENODEV;
6568 case LPFC_SLI_INTF_IF_TYPE_2:
6569 /* Final checks. The port status should be clean. */
6570 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6572 (bf_get(lpfc_sliport_status_err, ®_data) &&
6573 !bf_get(lpfc_sliport_status_rn, ®_data))) {
6574 phba->work_status[0] =
6575 readl(phba->sli4_hba.u.if_type2.
6577 phba->work_status[1] =
6578 readl(phba->sli4_hba.u.if_type2.
6580 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6581 "2888 Unrecoverable port error "
6582 "following POST: port status reg "
6583 "0x%x, port_smphr reg 0x%x, "
6584 "error 1=0x%x, error 2=0x%x\n",
6586 portsmphr_reg.word0,
6587 phba->work_status[0],
6588 phba->work_status[1]);
6589 port_error = -ENODEV;
6592 case LPFC_SLI_INTF_IF_TYPE_1:
6601 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6602 * @phba: pointer to lpfc hba data structure.
6603 * @if_type: The SLI4 interface type getting configured.
6605 * This routine is invoked to set up SLI4 BAR0 PCI config space register
6609 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6612 case LPFC_SLI_INTF_IF_TYPE_0:
6613 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6614 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6615 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6616 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6617 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6618 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6619 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6620 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6621 phba->sli4_hba.SLIINTFregaddr =
6622 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6624 case LPFC_SLI_INTF_IF_TYPE_2:
6625 phba->sli4_hba.u.if_type2.ERR1regaddr =
6626 phba->sli4_hba.conf_regs_memmap_p +
6627 LPFC_CTL_PORT_ER1_OFFSET;
6628 phba->sli4_hba.u.if_type2.ERR2regaddr =
6629 phba->sli4_hba.conf_regs_memmap_p +
6630 LPFC_CTL_PORT_ER2_OFFSET;
6631 phba->sli4_hba.u.if_type2.CTRLregaddr =
6632 phba->sli4_hba.conf_regs_memmap_p +
6633 LPFC_CTL_PORT_CTL_OFFSET;
6634 phba->sli4_hba.u.if_type2.STATUSregaddr =
6635 phba->sli4_hba.conf_regs_memmap_p +
6636 LPFC_CTL_PORT_STA_OFFSET;
6637 phba->sli4_hba.SLIINTFregaddr =
6638 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6639 phba->sli4_hba.PSMPHRregaddr =
6640 phba->sli4_hba.conf_regs_memmap_p +
6641 LPFC_CTL_PORT_SEM_OFFSET;
6642 phba->sli4_hba.RQDBregaddr =
6643 phba->sli4_hba.conf_regs_memmap_p +
6644 LPFC_ULP0_RQ_DOORBELL;
6645 phba->sli4_hba.WQDBregaddr =
6646 phba->sli4_hba.conf_regs_memmap_p +
6647 LPFC_ULP0_WQ_DOORBELL;
6648 phba->sli4_hba.EQCQDBregaddr =
6649 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6650 phba->sli4_hba.MQDBregaddr =
6651 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6652 phba->sli4_hba.BMBXregaddr =
6653 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6655 case LPFC_SLI_INTF_IF_TYPE_1:
6657 dev_printk(KERN_ERR, &phba->pcidev->dev,
6658 "FATAL - unsupported SLI4 interface type - %d\n",
6665 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6666 * @phba: pointer to lpfc hba data structure.
6668 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6672 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6674 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6675 LPFC_SLIPORT_IF0_SMPHR;
6676 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6678 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6680 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6685 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6686 * @phba: pointer to lpfc hba data structure.
6687 * @vf: virtual function number
6689 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6690 * based on the given viftual function number, @vf.
6692 * Return 0 if successful, otherwise -ENODEV.
6695 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6697 if (vf > LPFC_VIR_FUNC_MAX)
6700 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6701 vf * LPFC_VFR_PAGE_SIZE +
6702 LPFC_ULP0_RQ_DOORBELL);
6703 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6704 vf * LPFC_VFR_PAGE_SIZE +
6705 LPFC_ULP0_WQ_DOORBELL);
6706 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6707 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6708 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6709 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6710 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6711 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6716 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6717 * @phba: pointer to lpfc hba data structure.
6719 * This routine is invoked to create the bootstrap mailbox
6720 * region consistent with the SLI-4 interface spec. This
6721 * routine allocates all memory necessary to communicate
6722 * mailbox commands to the port and sets up all alignment
6723 * needs. No locks are expected to be held when calling
6728 * -ENOMEM - could not allocated memory.
6731 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6734 struct lpfc_dmabuf *dmabuf;
6735 struct dma_address *dma_address;
6739 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6744 * The bootstrap mailbox region is comprised of 2 parts
6745 * plus an alignment restriction of 16 bytes.
6747 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6748 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
6749 &dmabuf->phys, GFP_KERNEL);
6750 if (!dmabuf->virt) {
6756 * Initialize the bootstrap mailbox pointers now so that the register
6757 * operations are simple later. The mailbox dma address is required
6758 * to be 16-byte aligned. Also align the virtual memory as each
6759 * maibox is copied into the bmbx mailbox region before issuing the
6760 * command to the port.
6762 phba->sli4_hba.bmbx.dmabuf = dmabuf;
6763 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6765 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6766 LPFC_ALIGN_16_BYTE);
6767 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6768 LPFC_ALIGN_16_BYTE);
6771 * Set the high and low physical addresses now. The SLI4 alignment
6772 * requirement is 16 bytes and the mailbox is posted to the port
6773 * as two 30-bit addresses. The other data is a bit marking whether
6774 * the 30-bit address is the high or low address.
6775 * Upcast bmbx aphys to 64bits so shift instruction compiles
6776 * clean on 32 bit machines.
6778 dma_address = &phba->sli4_hba.bmbx.dma_address;
6779 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6780 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6781 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6782 LPFC_BMBX_BIT1_ADDR_HI);
6784 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6785 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6786 LPFC_BMBX_BIT1_ADDR_LO);
6791 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6792 * @phba: pointer to lpfc hba data structure.
6794 * This routine is invoked to teardown the bootstrap mailbox
6795 * region and release all host resources. This routine requires
6796 * the caller to ensure all mailbox commands recovered, no
6797 * additional mailbox comands are sent, and interrupts are disabled
6798 * before calling this routine.
6802 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6804 dma_free_coherent(&phba->pcidev->dev,
6805 phba->sli4_hba.bmbx.bmbx_size,
6806 phba->sli4_hba.bmbx.dmabuf->virt,
6807 phba->sli4_hba.bmbx.dmabuf->phys);
6809 kfree(phba->sli4_hba.bmbx.dmabuf);
6810 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6814 * lpfc_sli4_read_config - Get the config parameters.
6815 * @phba: pointer to lpfc hba data structure.
6817 * This routine is invoked to read the configuration parameters from the HBA.
6818 * The configuration parameters are used to set the base and maximum values
6819 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6820 * allocation for the port.
6824 * -ENOMEM - No available memory
6825 * -EIO - The mailbox failed to complete successfully.
6828 lpfc_sli4_read_config(struct lpfc_hba *phba)
6831 struct lpfc_mbx_read_config *rd_config;
6832 union lpfc_sli4_cfg_shdr *shdr;
6833 uint32_t shdr_status, shdr_add_status;
6834 struct lpfc_mbx_get_func_cfg *get_func_cfg;
6835 struct lpfc_rsrc_desc_fcfcoe *desc;
6837 int length, i, rc = 0, rc2;
6839 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6841 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6842 "2011 Unable to allocate memory for issuing "
6843 "SLI_CONFIG_SPECIAL mailbox command\n");
6847 lpfc_read_config(phba, pmb);
6849 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6850 if (rc != MBX_SUCCESS) {
6851 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6852 "2012 Mailbox failed , mbxCmd x%x "
6853 "READ_CONFIG, mbxStatus x%x\n",
6854 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6855 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6858 rd_config = &pmb->u.mqe.un.rd_config;
6859 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6860 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6861 phba->sli4_hba.lnk_info.lnk_tp =
6862 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6863 phba->sli4_hba.lnk_info.lnk_no =
6864 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6865 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6866 "3081 lnk_type:%d, lnk_numb:%d\n",
6867 phba->sli4_hba.lnk_info.lnk_tp,
6868 phba->sli4_hba.lnk_info.lnk_no);
6870 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6871 "3082 Mailbox (x%x) returned ldv:x0\n",
6872 bf_get(lpfc_mqe_command, &pmb->u.mqe));
6873 phba->sli4_hba.extents_in_use =
6874 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6875 phba->sli4_hba.max_cfg_param.max_xri =
6876 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6877 phba->sli4_hba.max_cfg_param.xri_base =
6878 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6879 phba->sli4_hba.max_cfg_param.max_vpi =
6880 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6881 phba->sli4_hba.max_cfg_param.vpi_base =
6882 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6883 phba->sli4_hba.max_cfg_param.max_rpi =
6884 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6885 phba->sli4_hba.max_cfg_param.rpi_base =
6886 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6887 phba->sli4_hba.max_cfg_param.max_vfi =
6888 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6889 phba->sli4_hba.max_cfg_param.vfi_base =
6890 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6891 phba->sli4_hba.max_cfg_param.max_fcfi =
6892 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6893 phba->sli4_hba.max_cfg_param.max_eq =
6894 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6895 phba->sli4_hba.max_cfg_param.max_rq =
6896 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6897 phba->sli4_hba.max_cfg_param.max_wq =
6898 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6899 phba->sli4_hba.max_cfg_param.max_cq =
6900 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6901 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6902 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6903 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6904 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6905 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6906 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6907 phba->max_vports = phba->max_vpi;
6908 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6909 "2003 cfg params Extents? %d "
6915 phba->sli4_hba.extents_in_use,
6916 phba->sli4_hba.max_cfg_param.xri_base,
6917 phba->sli4_hba.max_cfg_param.max_xri,
6918 phba->sli4_hba.max_cfg_param.vpi_base,
6919 phba->sli4_hba.max_cfg_param.max_vpi,
6920 phba->sli4_hba.max_cfg_param.vfi_base,
6921 phba->sli4_hba.max_cfg_param.max_vfi,
6922 phba->sli4_hba.max_cfg_param.rpi_base,
6923 phba->sli4_hba.max_cfg_param.max_rpi,
6924 phba->sli4_hba.max_cfg_param.max_fcfi);
6930 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
6931 length = phba->sli4_hba.max_cfg_param.max_xri -
6932 lpfc_sli4_get_els_iocb_cnt(phba);
6933 if (phba->cfg_hba_queue_depth > length) {
6934 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6935 "3361 HBA queue depth changed from %d to %d\n",
6936 phba->cfg_hba_queue_depth, length);
6937 phba->cfg_hba_queue_depth = length;
6940 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6941 LPFC_SLI_INTF_IF_TYPE_2)
6944 /* get the pf# and vf# for SLI4 if_type 2 port */
6945 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6946 sizeof(struct lpfc_sli4_cfg_mhdr));
6947 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6948 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6949 length, LPFC_SLI4_MBX_EMBED);
6951 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6952 shdr = (union lpfc_sli4_cfg_shdr *)
6953 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6954 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6955 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6956 if (rc2 || shdr_status || shdr_add_status) {
6957 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6958 "3026 Mailbox failed , mbxCmd x%x "
6959 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6960 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6961 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6965 /* search for fc_fcoe resrouce descriptor */
6966 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6968 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6969 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6970 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6971 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6972 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6973 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6976 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6977 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6978 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6979 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6980 phba->sli4_hba.iov.pf_number =
6981 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6982 phba->sli4_hba.iov.vf_number =
6983 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6988 if (i < LPFC_RSRC_DESC_MAX_NUM)
6989 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6990 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6991 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6992 phba->sli4_hba.iov.vf_number);
6994 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6995 "3028 GET_FUNCTION_CONFIG: failed to find "
6996 "Resrouce Descriptor:x%x\n",
6997 LPFC_RSRC_DESC_TYPE_FCFCOE);
7000 mempool_free(pmb, phba->mbox_mem_pool);
7005 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
7006 * @phba: pointer to lpfc hba data structure.
7008 * This routine is invoked to setup the port-side endian order when
7009 * the port if_type is 0. This routine has no function for other
7014 * -ENOMEM - No available memory
7015 * -EIO - The mailbox failed to complete successfully.
7018 lpfc_setup_endian_order(struct lpfc_hba *phba)
7020 LPFC_MBOXQ_t *mboxq;
7021 uint32_t if_type, rc = 0;
7022 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7023 HOST_ENDIAN_HIGH_WORD1};
7025 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7027 case LPFC_SLI_INTF_IF_TYPE_0:
7028 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7031 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7032 "0492 Unable to allocate memory for "
7033 "issuing SLI_CONFIG_SPECIAL mailbox "
7039 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
7040 * two words to contain special data values and no other data.
7042 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
7043 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
7044 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7045 if (rc != MBX_SUCCESS) {
7046 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7047 "0493 SLI_CONFIG_SPECIAL mailbox "
7048 "failed with status x%x\n",
7052 mempool_free(mboxq, phba->mbox_mem_pool);
7054 case LPFC_SLI_INTF_IF_TYPE_2:
7055 case LPFC_SLI_INTF_IF_TYPE_1:
7063 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
7064 * @phba: pointer to lpfc hba data structure.
7066 * This routine is invoked to check the user settable queue counts for EQs and
7067 * CQs. after this routine is called the counts will be set to valid values that
7068 * adhere to the constraints of the system's interrupt vectors and the port's
7073 * -ENOMEM - No available memory
7076 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
7078 int cfg_fcp_io_channel;
7081 int fof_vectors = phba->cfg_fof ? 1 : 0;
7084 * Sanity check for configured queue parameters against the run-time
7088 /* Sanity check on HBA EQ parameters */
7089 cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
7091 /* It doesn't make sense to have more io channels then online CPUs */
7092 for_each_present_cpu(cpu) {
7093 if (cpu_online(cpu))
7096 phba->sli4_hba.num_online_cpu = i;
7097 phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7098 phba->sli4_hba.curr_disp_cpu = 0;
7100 if (i < cfg_fcp_io_channel) {
7101 lpfc_printf_log(phba,
7103 "3188 Reducing IO channels to match number of "
7104 "online CPUs: from %d to %d\n",
7105 cfg_fcp_io_channel, i);
7106 cfg_fcp_io_channel = i;
7109 if (cfg_fcp_io_channel + fof_vectors >
7110 phba->sli4_hba.max_cfg_param.max_eq) {
7111 if (phba->sli4_hba.max_cfg_param.max_eq <
7112 LPFC_FCP_IO_CHAN_MIN) {
7113 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7114 "2574 Not enough EQs (%d) from the "
7115 "pci function for supporting FCP "
7117 phba->sli4_hba.max_cfg_param.max_eq,
7118 phba->cfg_fcp_io_channel);
7121 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7122 "2575 Reducing IO channels to match number of "
7123 "available EQs: from %d to %d\n",
7125 phba->sli4_hba.max_cfg_param.max_eq);
7126 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq -
7130 /* The actual number of FCP event queues adopted */
7131 phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
7133 /* Get EQ depth from module parameter, fake the default for now */
7134 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7135 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7137 /* Get CQ depth from module parameter, fake the default for now */
7138 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7139 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7147 * lpfc_sli4_queue_create - Create all the SLI4 queues
7148 * @phba: pointer to lpfc hba data structure.
7150 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
7151 * operation. For each SLI4 queue type, the parameters such as queue entry
7152 * count (queue depth) shall be taken from the module parameter. For now,
7153 * we just use some constant number as place holder.
7157 * -ENOMEM - No availble memory
7158 * -EIO - The mailbox failed to complete successfully.
7161 lpfc_sli4_queue_create(struct lpfc_hba *phba)
7163 struct lpfc_queue *qdesc;
7167 * Create HBA Record arrays.
7169 if (!phba->cfg_fcp_io_channel)
7172 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
7173 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
7174 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
7175 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
7176 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
7177 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
7179 phba->sli4_hba.hba_eq = kzalloc((sizeof(struct lpfc_queue *) *
7180 phba->cfg_fcp_io_channel), GFP_KERNEL);
7181 if (!phba->sli4_hba.hba_eq) {
7182 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7183 "2576 Failed allocate memory for "
7184 "fast-path EQ record array\n");
7188 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
7189 phba->cfg_fcp_io_channel), GFP_KERNEL);
7190 if (!phba->sli4_hba.fcp_cq) {
7191 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7192 "2577 Failed allocate memory for fast-path "
7193 "CQ record array\n");
7197 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
7198 phba->cfg_fcp_io_channel), GFP_KERNEL);
7199 if (!phba->sli4_hba.fcp_wq) {
7200 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7201 "2578 Failed allocate memory for fast-path "
7202 "WQ record array\n");
7207 * Since the first EQ can have multiple CQs associated with it,
7208 * this array is used to quickly see if we have a FCP fast-path
7211 phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
7212 phba->cfg_fcp_io_channel), GFP_KERNEL);
7213 if (!phba->sli4_hba.fcp_cq_map) {
7214 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7215 "2545 Failed allocate memory for fast-path "
7221 * Create HBA Event Queues (EQs). The cfg_fcp_io_channel specifies
7222 * how many EQs to create.
7224 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7227 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
7228 phba->sli4_hba.eq_ecount);
7230 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7231 "0497 Failed allocate EQ (%d)\n", idx);
7234 phba->sli4_hba.hba_eq[idx] = qdesc;
7236 /* Create Fast Path FCP CQs */
7237 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7238 phba->sli4_hba.cq_ecount);
7240 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7241 "0499 Failed allocate fast-path FCP "
7245 phba->sli4_hba.fcp_cq[idx] = qdesc;
7247 /* Create Fast Path FCP WQs */
7248 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7249 phba->sli4_hba.wq_ecount);
7251 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7252 "0503 Failed allocate fast-path FCP "
7256 phba->sli4_hba.fcp_wq[idx] = qdesc;
7261 * Create Slow Path Completion Queues (CQs)
7264 /* Create slow-path Mailbox Command Complete Queue */
7265 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7266 phba->sli4_hba.cq_ecount);
7268 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7269 "0500 Failed allocate slow-path mailbox CQ\n");
7272 phba->sli4_hba.mbx_cq = qdesc;
7274 /* Create slow-path ELS Complete Queue */
7275 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7276 phba->sli4_hba.cq_ecount);
7278 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7279 "0501 Failed allocate slow-path ELS CQ\n");
7282 phba->sli4_hba.els_cq = qdesc;
7286 * Create Slow Path Work Queues (WQs)
7289 /* Create Mailbox Command Queue */
7291 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7292 phba->sli4_hba.mq_ecount);
7294 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7295 "0505 Failed allocate slow-path MQ\n");
7298 phba->sli4_hba.mbx_wq = qdesc;
7301 * Create ELS Work Queues
7304 /* Create slow-path ELS Work Queue */
7305 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7306 phba->sli4_hba.wq_ecount);
7308 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7309 "0504 Failed allocate slow-path ELS WQ\n");
7312 phba->sli4_hba.els_wq = qdesc;
7315 * Create Receive Queue (RQ)
7318 /* Create Receive Queue for header */
7319 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7320 phba->sli4_hba.rq_ecount);
7322 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7323 "0506 Failed allocate receive HRQ\n");
7326 phba->sli4_hba.hdr_rq = qdesc;
7328 /* Create Receive Queue for data */
7329 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7330 phba->sli4_hba.rq_ecount);
7332 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7333 "0507 Failed allocate receive DRQ\n");
7336 phba->sli4_hba.dat_rq = qdesc;
7338 /* Create the Queues needed for Flash Optimized Fabric operations */
7340 lpfc_fof_queue_create(phba);
7344 lpfc_sli4_queue_destroy(phba);
7349 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7350 * @phba: pointer to lpfc hba data structure.
7352 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7357 * -ENOMEM - No available memory
7358 * -EIO - The mailbox failed to complete successfully.
7361 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7366 lpfc_fof_queue_destroy(phba);
7368 if (phba->sli4_hba.hba_eq != NULL) {
7369 /* Release HBA event queue */
7370 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7371 if (phba->sli4_hba.hba_eq[idx] != NULL) {
7372 lpfc_sli4_queue_free(
7373 phba->sli4_hba.hba_eq[idx]);
7374 phba->sli4_hba.hba_eq[idx] = NULL;
7377 kfree(phba->sli4_hba.hba_eq);
7378 phba->sli4_hba.hba_eq = NULL;
7381 if (phba->sli4_hba.fcp_cq != NULL) {
7382 /* Release FCP completion queue */
7383 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7384 if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7385 lpfc_sli4_queue_free(
7386 phba->sli4_hba.fcp_cq[idx]);
7387 phba->sli4_hba.fcp_cq[idx] = NULL;
7390 kfree(phba->sli4_hba.fcp_cq);
7391 phba->sli4_hba.fcp_cq = NULL;
7394 if (phba->sli4_hba.fcp_wq != NULL) {
7395 /* Release FCP work queue */
7396 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7397 if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7398 lpfc_sli4_queue_free(
7399 phba->sli4_hba.fcp_wq[idx]);
7400 phba->sli4_hba.fcp_wq[idx] = NULL;
7403 kfree(phba->sli4_hba.fcp_wq);
7404 phba->sli4_hba.fcp_wq = NULL;
7407 /* Release FCP CQ mapping array */
7408 if (phba->sli4_hba.fcp_cq_map != NULL) {
7409 kfree(phba->sli4_hba.fcp_cq_map);
7410 phba->sli4_hba.fcp_cq_map = NULL;
7413 /* Release mailbox command work queue */
7414 if (phba->sli4_hba.mbx_wq != NULL) {
7415 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
7416 phba->sli4_hba.mbx_wq = NULL;
7419 /* Release ELS work queue */
7420 if (phba->sli4_hba.els_wq != NULL) {
7421 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7422 phba->sli4_hba.els_wq = NULL;
7425 /* Release unsolicited receive queue */
7426 if (phba->sli4_hba.hdr_rq != NULL) {
7427 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7428 phba->sli4_hba.hdr_rq = NULL;
7430 if (phba->sli4_hba.dat_rq != NULL) {
7431 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7432 phba->sli4_hba.dat_rq = NULL;
7435 /* Release ELS complete queue */
7436 if (phba->sli4_hba.els_cq != NULL) {
7437 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7438 phba->sli4_hba.els_cq = NULL;
7441 /* Release mailbox command complete queue */
7442 if (phba->sli4_hba.mbx_cq != NULL) {
7443 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7444 phba->sli4_hba.mbx_cq = NULL;
7451 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7452 * @phba: pointer to lpfc hba data structure.
7454 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7459 * -ENOMEM - No available memory
7460 * -EIO - The mailbox failed to complete successfully.
7463 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7465 struct lpfc_sli *psli = &phba->sli;
7466 struct lpfc_sli_ring *pring;
7468 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7469 int fcp_cq_index = 0;
7470 uint32_t shdr_status, shdr_add_status;
7471 union lpfc_sli4_cfg_shdr *shdr;
7472 LPFC_MBOXQ_t *mboxq;
7475 /* Check for dual-ULP support */
7476 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7478 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7479 "3249 Unable to allocate memory for "
7480 "QUERY_FW_CFG mailbox command\n");
7483 length = (sizeof(struct lpfc_mbx_query_fw_config) -
7484 sizeof(struct lpfc_sli4_cfg_mhdr));
7485 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7486 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
7487 length, LPFC_SLI4_MBX_EMBED);
7489 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7491 shdr = (union lpfc_sli4_cfg_shdr *)
7492 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7493 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7494 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7495 if (shdr_status || shdr_add_status || rc) {
7496 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7497 "3250 QUERY_FW_CFG mailbox failed with status "
7498 "x%x add_status x%x, mbx status x%x\n",
7499 shdr_status, shdr_add_status, rc);
7500 if (rc != MBX_TIMEOUT)
7501 mempool_free(mboxq, phba->mbox_mem_pool);
7506 phba->sli4_hba.fw_func_mode =
7507 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
7508 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
7509 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
7510 phba->sli4_hba.physical_port =
7511 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
7512 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7513 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
7514 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
7515 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
7517 if (rc != MBX_TIMEOUT)
7518 mempool_free(mboxq, phba->mbox_mem_pool);
7521 * Set up HBA Event Queues (EQs)
7524 /* Set up HBA event queue */
7525 if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7526 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7527 "3147 Fast-path EQs not allocated\n");
7531 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7532 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7533 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7534 "0522 Fast-path EQ (%d) not "
7535 "allocated\n", fcp_eqidx);
7537 goto out_destroy_hba_eq;
7539 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7540 (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7542 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7543 "0523 Failed setup of fast-path EQ "
7544 "(%d), rc = 0x%x\n", fcp_eqidx,
7546 goto out_destroy_hba_eq;
7548 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7549 "2584 HBA EQ setup: "
7550 "queue[%d]-id=%d\n", fcp_eqidx,
7551 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7554 /* Set up fast-path FCP Response Complete Queue */
7555 if (!phba->sli4_hba.fcp_cq) {
7556 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7557 "3148 Fast-path FCP CQ array not "
7560 goto out_destroy_hba_eq;
7563 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7564 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7565 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7566 "0526 Fast-path FCP CQ (%d) not "
7567 "allocated\n", fcp_cqidx);
7569 goto out_destroy_fcp_cq;
7571 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7572 phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7574 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7575 "0527 Failed setup of fast-path FCP "
7576 "CQ (%d), rc = 0x%x\n", fcp_cqidx,
7578 goto out_destroy_fcp_cq;
7581 /* Setup fcp_cq_map for fast lookup */
7582 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7583 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7585 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7586 "2588 FCP CQ setup: cq[%d]-id=%d, "
7587 "parent seq[%d]-id=%d\n",
7589 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7591 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7594 /* Set up fast-path FCP Work Queue */
7595 if (!phba->sli4_hba.fcp_wq) {
7596 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7597 "3149 Fast-path FCP WQ array not "
7600 goto out_destroy_fcp_cq;
7603 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7604 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7605 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7606 "0534 Fast-path FCP WQ (%d) not "
7607 "allocated\n", fcp_wqidx);
7609 goto out_destroy_fcp_wq;
7611 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7612 phba->sli4_hba.fcp_cq[fcp_wqidx],
7615 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7616 "0535 Failed setup of fast-path FCP "
7617 "WQ (%d), rc = 0x%x\n", fcp_wqidx,
7619 goto out_destroy_fcp_wq;
7622 /* Bind this WQ to the next FCP ring */
7623 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7624 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7625 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7627 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7628 "2591 FCP WQ setup: wq[%d]-id=%d, "
7629 "parent cq[%d]-id=%d\n",
7631 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7633 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7636 * Set up Complete Queues (CQs)
7639 /* Set up slow-path MBOX Complete Queue as the first CQ */
7640 if (!phba->sli4_hba.mbx_cq) {
7641 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7642 "0528 Mailbox CQ not allocated\n");
7644 goto out_destroy_fcp_wq;
7646 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7647 phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7649 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7650 "0529 Failed setup of slow-path mailbox CQ: "
7651 "rc = 0x%x\n", (uint32_t)rc);
7652 goto out_destroy_fcp_wq;
7654 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7655 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7656 phba->sli4_hba.mbx_cq->queue_id,
7657 phba->sli4_hba.hba_eq[0]->queue_id);
7659 /* Set up slow-path ELS Complete Queue */
7660 if (!phba->sli4_hba.els_cq) {
7661 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7662 "0530 ELS CQ not allocated\n");
7664 goto out_destroy_mbx_cq;
7666 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7667 phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7669 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7670 "0531 Failed setup of slow-path ELS CQ: "
7671 "rc = 0x%x\n", (uint32_t)rc);
7672 goto out_destroy_mbx_cq;
7674 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7675 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7676 phba->sli4_hba.els_cq->queue_id,
7677 phba->sli4_hba.hba_eq[0]->queue_id);
7680 * Set up all the Work Queues (WQs)
7683 /* Set up Mailbox Command Queue */
7684 if (!phba->sli4_hba.mbx_wq) {
7685 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7686 "0538 Slow-path MQ not allocated\n");
7688 goto out_destroy_els_cq;
7690 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7691 phba->sli4_hba.mbx_cq, LPFC_MBOX);
7693 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7694 "0539 Failed setup of slow-path MQ: "
7696 goto out_destroy_els_cq;
7698 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7699 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7700 phba->sli4_hba.mbx_wq->queue_id,
7701 phba->sli4_hba.mbx_cq->queue_id);
7703 /* Set up slow-path ELS Work Queue */
7704 if (!phba->sli4_hba.els_wq) {
7705 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7706 "0536 Slow-path ELS WQ not allocated\n");
7708 goto out_destroy_mbx_wq;
7710 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7711 phba->sli4_hba.els_cq, LPFC_ELS);
7713 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7714 "0537 Failed setup of slow-path ELS WQ: "
7715 "rc = 0x%x\n", (uint32_t)rc);
7716 goto out_destroy_mbx_wq;
7719 /* Bind this WQ to the ELS ring */
7720 pring = &psli->ring[LPFC_ELS_RING];
7721 pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7722 phba->sli4_hba.els_cq->pring = pring;
7724 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7725 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7726 phba->sli4_hba.els_wq->queue_id,
7727 phba->sli4_hba.els_cq->queue_id);
7730 * Create Receive Queue (RQ)
7732 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7733 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7734 "0540 Receive Queue not allocated\n");
7736 goto out_destroy_els_wq;
7739 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7740 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7742 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7743 phba->sli4_hba.els_cq, LPFC_USOL);
7745 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7746 "0541 Failed setup of Receive Queue: "
7747 "rc = 0x%x\n", (uint32_t)rc);
7748 goto out_destroy_fcp_wq;
7751 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7752 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7753 "parent cq-id=%d\n",
7754 phba->sli4_hba.hdr_rq->queue_id,
7755 phba->sli4_hba.dat_rq->queue_id,
7756 phba->sli4_hba.els_cq->queue_id);
7758 if (phba->cfg_fof) {
7759 rc = lpfc_fof_queue_setup(phba);
7761 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7762 "0549 Failed setup of FOF Queues: "
7764 goto out_destroy_els_rq;
7769 * Configure EQ delay multipier for interrupt coalescing using
7770 * MODIFY_EQ_DELAY for all EQs created, LPFC_MAX_EQ_DELAY at a time.
7772 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
7773 fcp_eqidx += LPFC_MAX_EQ_DELAY)
7774 lpfc_modify_fcp_eq_delay(phba, fcp_eqidx);
7778 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7780 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7782 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7784 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7786 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7788 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7789 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7791 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7792 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7794 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7795 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7801 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7802 * @phba: pointer to lpfc hba data structure.
7804 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7809 * -ENOMEM - No available memory
7810 * -EIO - The mailbox failed to complete successfully.
7813 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7817 /* Unset the queues created for Flash Optimized Fabric operations */
7819 lpfc_fof_queue_destroy(phba);
7820 /* Unset mailbox command work queue */
7821 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7822 /* Unset ELS work queue */
7823 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7824 /* Unset unsolicited receive queue */
7825 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7826 /* Unset FCP work queue */
7827 if (phba->sli4_hba.fcp_wq) {
7828 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7830 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7832 /* Unset mailbox command complete queue */
7833 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7834 /* Unset ELS complete queue */
7835 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7836 /* Unset FCP response complete queue */
7837 if (phba->sli4_hba.fcp_cq) {
7838 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7840 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7842 /* Unset fast-path event queue */
7843 if (phba->sli4_hba.hba_eq) {
7844 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7846 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
7851 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7852 * @phba: pointer to lpfc hba data structure.
7854 * This routine is invoked to allocate and set up a pool of completion queue
7855 * events. The body of the completion queue event is a completion queue entry
7856 * CQE. For now, this pool is used for the interrupt service routine to queue
7857 * the following HBA completion queue events for the worker thread to process:
7858 * - Mailbox asynchronous events
7859 * - Receive queue completion unsolicited events
7860 * Later, this can be used for all the slow-path events.
7864 * -ENOMEM - No available memory
7867 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7869 struct lpfc_cq_event *cq_event;
7872 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7873 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7875 goto out_pool_create_fail;
7876 list_add_tail(&cq_event->list,
7877 &phba->sli4_hba.sp_cqe_event_pool);
7881 out_pool_create_fail:
7882 lpfc_sli4_cq_event_pool_destroy(phba);
7887 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7888 * @phba: pointer to lpfc hba data structure.
7890 * This routine is invoked to free the pool of completion queue events at
7891 * driver unload time. Note that, it is the responsibility of the driver
7892 * cleanup routine to free all the outstanding completion-queue events
7893 * allocated from this pool back into the pool before invoking this routine
7894 * to destroy the pool.
7897 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7899 struct lpfc_cq_event *cq_event, *next_cq_event;
7901 list_for_each_entry_safe(cq_event, next_cq_event,
7902 &phba->sli4_hba.sp_cqe_event_pool, list) {
7903 list_del(&cq_event->list);
7909 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7910 * @phba: pointer to lpfc hba data structure.
7912 * This routine is the lock free version of the API invoked to allocate a
7913 * completion-queue event from the free pool.
7915 * Return: Pointer to the newly allocated completion-queue event if successful
7918 struct lpfc_cq_event *
7919 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7921 struct lpfc_cq_event *cq_event = NULL;
7923 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7924 struct lpfc_cq_event, list);
7929 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7930 * @phba: pointer to lpfc hba data structure.
7932 * This routine is the lock version of the API invoked to allocate a
7933 * completion-queue event from the free pool.
7935 * Return: Pointer to the newly allocated completion-queue event if successful
7938 struct lpfc_cq_event *
7939 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7941 struct lpfc_cq_event *cq_event;
7942 unsigned long iflags;
7944 spin_lock_irqsave(&phba->hbalock, iflags);
7945 cq_event = __lpfc_sli4_cq_event_alloc(phba);
7946 spin_unlock_irqrestore(&phba->hbalock, iflags);
7951 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7952 * @phba: pointer to lpfc hba data structure.
7953 * @cq_event: pointer to the completion queue event to be freed.
7955 * This routine is the lock free version of the API invoked to release a
7956 * completion-queue event back into the free pool.
7959 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7960 struct lpfc_cq_event *cq_event)
7962 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7966 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7967 * @phba: pointer to lpfc hba data structure.
7968 * @cq_event: pointer to the completion queue event to be freed.
7970 * This routine is the lock version of the API invoked to release a
7971 * completion-queue event back into the free pool.
7974 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7975 struct lpfc_cq_event *cq_event)
7977 unsigned long iflags;
7978 spin_lock_irqsave(&phba->hbalock, iflags);
7979 __lpfc_sli4_cq_event_release(phba, cq_event);
7980 spin_unlock_irqrestore(&phba->hbalock, iflags);
7984 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7985 * @phba: pointer to lpfc hba data structure.
7987 * This routine is to free all the pending completion-queue events to the
7988 * back into the free pool for device reset.
7991 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7994 struct lpfc_cq_event *cqe;
7995 unsigned long iflags;
7997 /* Retrieve all the pending WCQEs from pending WCQE lists */
7998 spin_lock_irqsave(&phba->hbalock, iflags);
7999 /* Pending FCP XRI abort events */
8000 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
8002 /* Pending ELS XRI abort events */
8003 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
8005 /* Pending asynnc events */
8006 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
8008 spin_unlock_irqrestore(&phba->hbalock, iflags);
8010 while (!list_empty(&cqelist)) {
8011 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
8012 lpfc_sli4_cq_event_release(phba, cqe);
8017 * lpfc_pci_function_reset - Reset pci function.
8018 * @phba: pointer to lpfc hba data structure.
8020 * This routine is invoked to request a PCI function reset. It will destroys
8021 * all resources assigned to the PCI function which originates this request.
8025 * -ENOMEM - No available memory
8026 * -EIO - The mailbox failed to complete successfully.
8029 lpfc_pci_function_reset(struct lpfc_hba *phba)
8031 LPFC_MBOXQ_t *mboxq;
8032 uint32_t rc = 0, if_type;
8033 uint32_t shdr_status, shdr_add_status;
8035 uint32_t port_reset = 0;
8036 union lpfc_sli4_cfg_shdr *shdr;
8037 struct lpfc_register reg_data;
8040 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8042 case LPFC_SLI_INTF_IF_TYPE_0:
8043 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8046 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8047 "0494 Unable to allocate memory for "
8048 "issuing SLI_FUNCTION_RESET mailbox "
8053 /* Setup PCI function reset mailbox-ioctl command */
8054 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8055 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
8056 LPFC_SLI4_MBX_EMBED);
8057 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8058 shdr = (union lpfc_sli4_cfg_shdr *)
8059 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8060 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8061 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
8063 if (rc != MBX_TIMEOUT)
8064 mempool_free(mboxq, phba->mbox_mem_pool);
8065 if (shdr_status || shdr_add_status || rc) {
8066 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8067 "0495 SLI_FUNCTION_RESET mailbox "
8068 "failed with status x%x add_status x%x,"
8069 " mbx status x%x\n",
8070 shdr_status, shdr_add_status, rc);
8074 case LPFC_SLI_INTF_IF_TYPE_2:
8077 * Poll the Port Status Register and wait for RDY for
8078 * up to 30 seconds. If the port doesn't respond, treat
8081 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
8082 if (lpfc_readl(phba->sli4_hba.u.if_type2.
8083 STATUSregaddr, ®_data.word0)) {
8087 if (bf_get(lpfc_sliport_status_rdy, ®_data))
8092 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) {
8093 phba->work_status[0] = readl(
8094 phba->sli4_hba.u.if_type2.ERR1regaddr);
8095 phba->work_status[1] = readl(
8096 phba->sli4_hba.u.if_type2.ERR2regaddr);
8097 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8098 "2890 Port not ready, port status reg "
8099 "0x%x error 1=0x%x, error 2=0x%x\n",
8101 phba->work_status[0],
8102 phba->work_status[1]);
8109 * Reset the port now
8112 bf_set(lpfc_sliport_ctrl_end, ®_data,
8113 LPFC_SLIPORT_LITTLE_ENDIAN);
8114 bf_set(lpfc_sliport_ctrl_ip, ®_data,
8115 LPFC_SLIPORT_INIT_PORT);
8116 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
8119 pci_read_config_word(phba->pcidev,
8120 PCI_DEVICE_ID, &devid);
8125 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) {
8131 case LPFC_SLI_INTF_IF_TYPE_1:
8137 /* Catch the not-ready port failure after a port reset. */
8139 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8140 "3317 HBA not functional: IP Reset Failed "
8141 "try: echo fw_reset > board_mode\n");
8149 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
8150 * @phba: pointer to lpfc hba data structure.
8152 * This routine is invoked to set up the PCI device memory space for device
8153 * with SLI-4 interface spec.
8157 * other values - error
8160 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
8162 struct pci_dev *pdev;
8163 unsigned long bar0map_len, bar1map_len, bar2map_len;
8164 int error = -ENODEV;
8167 /* Obtain PCI device reference */
8171 pdev = phba->pcidev;
8173 /* Set the device DMA mask size */
8174 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
8175 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
8176 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
8177 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
8183 * The BARs and register set definitions and offset locations are
8184 * dependent on the if_type.
8186 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
8187 &phba->sli4_hba.sli_intf.word0)) {
8191 /* There is no SLI3 failback for SLI4 devices. */
8192 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
8193 LPFC_SLI_INTF_VALID) {
8194 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8195 "2894 SLI_INTF reg contents invalid "
8196 "sli_intf reg 0x%x\n",
8197 phba->sli4_hba.sli_intf.word0);
8201 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8203 * Get the bus address of SLI4 device Bar regions and the
8204 * number of bytes required by each mapping. The mapping of the
8205 * particular PCI BARs regions is dependent on the type of
8208 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
8209 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
8210 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
8213 * Map SLI4 PCI Config Space Register base to a kernel virtual
8216 phba->sli4_hba.conf_regs_memmap_p =
8217 ioremap(phba->pci_bar0_map, bar0map_len);
8218 if (!phba->sli4_hba.conf_regs_memmap_p) {
8219 dev_printk(KERN_ERR, &pdev->dev,
8220 "ioremap failed for SLI4 PCI config "
8224 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
8225 /* Set up BAR0 PCI config space register memory map */
8226 lpfc_sli4_bar0_register_memmap(phba, if_type);
8228 phba->pci_bar0_map = pci_resource_start(pdev, 1);
8229 bar0map_len = pci_resource_len(pdev, 1);
8230 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8231 dev_printk(KERN_ERR, &pdev->dev,
8232 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
8235 phba->sli4_hba.conf_regs_memmap_p =
8236 ioremap(phba->pci_bar0_map, bar0map_len);
8237 if (!phba->sli4_hba.conf_regs_memmap_p) {
8238 dev_printk(KERN_ERR, &pdev->dev,
8239 "ioremap failed for SLI4 PCI config "
8243 lpfc_sli4_bar0_register_memmap(phba, if_type);
8246 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8247 (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
8249 * Map SLI4 if type 0 HBA Control Register base to a kernel
8250 * virtual address and setup the registers.
8252 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
8253 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
8254 phba->sli4_hba.ctrl_regs_memmap_p =
8255 ioremap(phba->pci_bar1_map, bar1map_len);
8256 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
8257 dev_printk(KERN_ERR, &pdev->dev,
8258 "ioremap failed for SLI4 HBA control registers.\n");
8259 goto out_iounmap_conf;
8261 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
8262 lpfc_sli4_bar1_register_memmap(phba);
8265 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8266 (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
8268 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
8269 * virtual address and setup the registers.
8271 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
8272 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
8273 phba->sli4_hba.drbl_regs_memmap_p =
8274 ioremap(phba->pci_bar2_map, bar2map_len);
8275 if (!phba->sli4_hba.drbl_regs_memmap_p) {
8276 dev_printk(KERN_ERR, &pdev->dev,
8277 "ioremap failed for SLI4 HBA doorbell registers.\n");
8278 goto out_iounmap_ctrl;
8280 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
8281 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
8283 goto out_iounmap_all;
8289 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8291 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8293 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8299 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
8300 * @phba: pointer to lpfc hba data structure.
8302 * This routine is invoked to unset the PCI device memory space for device
8303 * with SLI-4 interface spec.
8306 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
8309 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8312 case LPFC_SLI_INTF_IF_TYPE_0:
8313 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8314 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8315 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8317 case LPFC_SLI_INTF_IF_TYPE_2:
8318 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8320 case LPFC_SLI_INTF_IF_TYPE_1:
8322 dev_printk(KERN_ERR, &phba->pcidev->dev,
8323 "FATAL - unsupported SLI4 interface type - %d\n",
8330 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
8331 * @phba: pointer to lpfc hba data structure.
8333 * This routine is invoked to enable the MSI-X interrupt vectors to device
8334 * with SLI-3 interface specs. The kernel function pci_enable_msix_exact()
8335 * is called to enable the MSI-X vectors. Note that pci_enable_msix_exact(),
8336 * once invoked, enables either all or nothing, depending on the current
8337 * availability of PCI vector resources. The device driver is responsible
8338 * for calling the individual request_irq() to register each MSI-X vector
8339 * with a interrupt handler, which is done in this function. Note that
8340 * later when device is unloading, the driver should always call free_irq()
8341 * on all MSI-X vectors it has done request_irq() on before calling
8342 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8343 * will be left with MSI-X enabled and leaks its vectors.
8347 * other values - error
8350 lpfc_sli_enable_msix(struct lpfc_hba *phba)
8355 /* Set up MSI-X multi-message vectors */
8356 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8357 phba->msix_entries[i].entry = i;
8359 /* Configure MSI-X capability structure */
8360 rc = pci_enable_msix_exact(phba->pcidev, phba->msix_entries,
8363 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8364 "0420 PCI enable MSI-X failed (%d)\n", rc);
8367 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8368 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8369 "0477 MSI-X entry[%d]: vector=x%x "
8371 phba->msix_entries[i].vector,
8372 phba->msix_entries[i].entry);
8374 * Assign MSI-X vectors to interrupt handlers
8377 /* vector-0 is associated to slow-path handler */
8378 rc = request_irq(phba->msix_entries[0].vector,
8379 &lpfc_sli_sp_intr_handler, 0,
8380 LPFC_SP_DRIVER_HANDLER_NAME, phba);
8382 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8383 "0421 MSI-X slow-path request_irq failed "
8388 /* vector-1 is associated to fast-path handler */
8389 rc = request_irq(phba->msix_entries[1].vector,
8390 &lpfc_sli_fp_intr_handler, 0,
8391 LPFC_FP_DRIVER_HANDLER_NAME, phba);
8394 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8395 "0429 MSI-X fast-path request_irq failed "
8401 * Configure HBA MSI-X attention conditions to messages
8403 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8407 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8408 "0474 Unable to allocate memory for issuing "
8409 "MBOX_CONFIG_MSI command\n");
8412 rc = lpfc_config_msi(phba, pmb);
8415 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8416 if (rc != MBX_SUCCESS) {
8417 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8418 "0351 Config MSI mailbox command failed, "
8419 "mbxCmd x%x, mbxStatus x%x\n",
8420 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8424 /* Free memory allocated for mailbox command */
8425 mempool_free(pmb, phba->mbox_mem_pool);
8429 /* Free memory allocated for mailbox command */
8430 mempool_free(pmb, phba->mbox_mem_pool);
8433 /* free the irq already requested */
8434 free_irq(phba->msix_entries[1].vector, phba);
8437 /* free the irq already requested */
8438 free_irq(phba->msix_entries[0].vector, phba);
8441 /* Unconfigure MSI-X capability structure */
8442 pci_disable_msix(phba->pcidev);
8449 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8450 * @phba: pointer to lpfc hba data structure.
8452 * This routine is invoked to release the MSI-X vectors and then disable the
8453 * MSI-X interrupt mode to device with SLI-3 interface spec.
8456 lpfc_sli_disable_msix(struct lpfc_hba *phba)
8460 /* Free up MSI-X multi-message vectors */
8461 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8462 free_irq(phba->msix_entries[i].vector, phba);
8464 pci_disable_msix(phba->pcidev);
8470 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8471 * @phba: pointer to lpfc hba data structure.
8473 * This routine is invoked to enable the MSI interrupt mode to device with
8474 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8475 * enable the MSI vector. The device driver is responsible for calling the
8476 * request_irq() to register MSI vector with a interrupt the handler, which
8477 * is done in this function.
8481 * other values - error
8484 lpfc_sli_enable_msi(struct lpfc_hba *phba)
8488 rc = pci_enable_msi(phba->pcidev);
8490 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8491 "0462 PCI enable MSI mode success.\n");
8493 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8494 "0471 PCI enable MSI mode failed (%d)\n", rc);
8498 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8499 0, LPFC_DRIVER_NAME, phba);
8501 pci_disable_msi(phba->pcidev);
8502 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8503 "0478 MSI request_irq failed (%d)\n", rc);
8509 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8510 * @phba: pointer to lpfc hba data structure.
8512 * This routine is invoked to disable the MSI interrupt mode to device with
8513 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8514 * done request_irq() on before calling pci_disable_msi(). Failure to do so
8515 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8519 lpfc_sli_disable_msi(struct lpfc_hba *phba)
8521 free_irq(phba->pcidev->irq, phba);
8522 pci_disable_msi(phba->pcidev);
8527 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8528 * @phba: pointer to lpfc hba data structure.
8530 * This routine is invoked to enable device interrupt and associate driver's
8531 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8532 * spec. Depends on the interrupt mode configured to the driver, the driver
8533 * will try to fallback from the configured interrupt mode to an interrupt
8534 * mode which is supported by the platform, kernel, and device in the order
8536 * MSI-X -> MSI -> IRQ.
8540 * other values - error
8543 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8545 uint32_t intr_mode = LPFC_INTR_ERROR;
8548 if (cfg_mode == 2) {
8549 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8550 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8552 /* Now, try to enable MSI-X interrupt mode */
8553 retval = lpfc_sli_enable_msix(phba);
8555 /* Indicate initialization to MSI-X mode */
8556 phba->intr_type = MSIX;
8562 /* Fallback to MSI if MSI-X initialization failed */
8563 if (cfg_mode >= 1 && phba->intr_type == NONE) {
8564 retval = lpfc_sli_enable_msi(phba);
8566 /* Indicate initialization to MSI mode */
8567 phba->intr_type = MSI;
8572 /* Fallback to INTx if both MSI-X/MSI initalization failed */
8573 if (phba->intr_type == NONE) {
8574 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8575 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8577 /* Indicate initialization to INTx mode */
8578 phba->intr_type = INTx;
8586 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8587 * @phba: pointer to lpfc hba data structure.
8589 * This routine is invoked to disable device interrupt and disassociate the
8590 * driver's interrupt handler(s) from interrupt vector(s) to device with
8591 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8592 * release the interrupt vector(s) for the message signaled interrupt.
8595 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8597 /* Disable the currently initialized interrupt mode */
8598 if (phba->intr_type == MSIX)
8599 lpfc_sli_disable_msix(phba);
8600 else if (phba->intr_type == MSI)
8601 lpfc_sli_disable_msi(phba);
8602 else if (phba->intr_type == INTx)
8603 free_irq(phba->pcidev->irq, phba);
8605 /* Reset interrupt management states */
8606 phba->intr_type = NONE;
8607 phba->sli.slistat.sli_intr = 0;
8613 * lpfc_find_next_cpu - Find next available CPU that matches the phys_id
8614 * @phba: pointer to lpfc hba data structure.
8616 * Find next available CPU to use for IRQ to CPU affinity.
8619 lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id)
8621 struct lpfc_vector_map_info *cpup;
8624 cpup = phba->sli4_hba.cpu_map;
8625 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8626 /* CPU must be online */
8627 if (cpu_online(cpu)) {
8628 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8629 (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) &&
8630 (cpup->phys_id == phys_id)) {
8638 * If we get here, we have used ALL CPUs for the specific
8639 * phys_id. Now we need to clear out lpfc_used_cpu and start
8643 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8644 if (lpfc_used_cpu[cpu] == phys_id)
8645 lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
8648 cpup = phba->sli4_hba.cpu_map;
8649 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8650 /* CPU must be online */
8651 if (cpu_online(cpu)) {
8652 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8653 (cpup->phys_id == phys_id)) {
8659 return LPFC_VECTOR_MAP_EMPTY;
8663 * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors
8664 * @phba: pointer to lpfc hba data structure.
8665 * @vectors: number of HBA vectors
8667 * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector
8668 * affinization across multple physical CPUs (numa nodes).
8669 * In addition, this routine will assign an IO channel for each CPU
8670 * to use when issuing I/Os.
8673 lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors)
8675 int i, idx, saved_chann, used_chann, cpu, phys_id;
8676 int max_phys_id, min_phys_id;
8677 int num_io_channel, first_cpu, chan;
8678 struct lpfc_vector_map_info *cpup;
8680 struct cpuinfo_x86 *cpuinfo;
8682 struct cpumask *mask;
8683 uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1];
8685 /* If there is no mapping, just return */
8686 if (!phba->cfg_fcp_cpu_map)
8689 /* Init cpu_map array */
8690 memset(phba->sli4_hba.cpu_map, 0xff,
8691 (sizeof(struct lpfc_vector_map_info) *
8692 phba->sli4_hba.num_present_cpu));
8698 first_cpu = LPFC_VECTOR_MAP_EMPTY;
8700 /* Update CPU map with physical id and core id of each CPU */
8701 cpup = phba->sli4_hba.cpu_map;
8702 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8704 cpuinfo = &cpu_data(cpu);
8705 cpup->phys_id = cpuinfo->phys_proc_id;
8706 cpup->core_id = cpuinfo->cpu_core_id;
8708 /* No distinction between CPUs for other platforms */
8713 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8714 "3328 CPU physid %d coreid %d\n",
8715 cpup->phys_id, cpup->core_id);
8717 if (cpup->phys_id > max_phys_id)
8718 max_phys_id = cpup->phys_id;
8719 if (cpup->phys_id < min_phys_id)
8720 min_phys_id = cpup->phys_id;
8724 phys_id = min_phys_id;
8725 /* Now associate the HBA vectors with specific CPUs */
8726 for (idx = 0; idx < vectors; idx++) {
8727 cpup = phba->sli4_hba.cpu_map;
8728 cpu = lpfc_find_next_cpu(phba, phys_id);
8729 if (cpu == LPFC_VECTOR_MAP_EMPTY) {
8731 /* Try for all phys_id's */
8732 for (i = 1; i < max_phys_id; i++) {
8734 if (phys_id > max_phys_id)
8735 phys_id = min_phys_id;
8736 cpu = lpfc_find_next_cpu(phba, phys_id);
8737 if (cpu == LPFC_VECTOR_MAP_EMPTY)
8742 /* Use round robin for scheduling */
8743 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN;
8745 cpup = phba->sli4_hba.cpu_map;
8746 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
8747 cpup->channel_id = chan;
8750 if (chan >= phba->cfg_fcp_io_channel)
8754 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8755 "3329 Cannot set affinity:"
8756 "Error mapping vector %d (%d)\n",
8762 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP)
8763 lpfc_used_cpu[cpu] = phys_id;
8765 /* Associate vector with selected CPU */
8766 cpup->irq = phba->sli4_hba.msix_entries[idx].vector;
8768 /* Associate IO channel with selected CPU */
8769 cpup->channel_id = idx;
8772 if (first_cpu == LPFC_VECTOR_MAP_EMPTY)
8775 /* Now affinitize to the selected CPU */
8776 mask = &cpup->maskbits;
8777 cpumask_clear(mask);
8778 cpumask_set_cpu(cpu, mask);
8779 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx].
8782 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8783 "3330 Set Affinity: CPU %d channel %d "
8785 cpu, cpup->channel_id,
8786 phba->sli4_hba.msix_entries[idx].vector, i);
8788 /* Spread vector mapping across multple physical CPU nodes */
8790 if (phys_id > max_phys_id)
8791 phys_id = min_phys_id;
8795 * Finally fill in the IO channel for any remaining CPUs.
8796 * At this point, all IO channels have been assigned to a specific
8797 * MSIx vector, mapped to a specific CPU.
8798 * Base the remaining IO channel assigned, to IO channels already
8799 * assigned to other CPUs on the same phys_id.
8801 for (i = min_phys_id; i <= max_phys_id; i++) {
8803 * If there are no io channels already mapped to
8804 * this phys_id, just round robin thru the io_channels.
8805 * Setup chann[] for round robin.
8807 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8814 * First build a list of IO channels already assigned
8815 * to this phys_id before reassigning the same IO
8816 * channels to the remaining CPUs.
8818 cpup = phba->sli4_hba.cpu_map;
8821 for (idx = 0; idx < phba->sli4_hba.num_present_cpu;
8823 if (cpup->phys_id == i) {
8825 * Save any IO channels that are
8826 * already mapped to this phys_id.
8828 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
8829 chann[saved_chann] =
8835 /* See if we are using round-robin */
8836 if (saved_chann == 0)
8838 phba->cfg_fcp_io_channel;
8840 /* Associate next IO channel with CPU */
8841 cpup->channel_id = chann[used_chann];
8844 if (used_chann == saved_chann)
8847 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8848 "3331 Set IO_CHANN "
8849 "CPU %d channel %d\n",
8850 idx, cpup->channel_id);
8854 if (cpu >= phba->sli4_hba.num_present_cpu) {
8855 cpup = phba->sli4_hba.cpu_map;
8863 if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) {
8864 cpup = phba->sli4_hba.cpu_map;
8865 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) {
8866 if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) {
8867 cpup->channel_id = 0;
8870 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8871 "3332 Assign IO_CHANN "
8872 "CPU %d channel %d\n",
8873 idx, cpup->channel_id);
8880 if (num_io_channel != phba->sli4_hba.num_present_cpu)
8881 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8882 "3333 Set affinity mismatch:"
8883 "%d chann != %d cpus: %d vectors\n",
8884 num_io_channel, phba->sli4_hba.num_present_cpu,
8887 /* Enable using cpu affinity for scheduling */
8888 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU;
8894 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8895 * @phba: pointer to lpfc hba data structure.
8897 * This routine is invoked to enable the MSI-X interrupt vectors to device
8898 * with SLI-4 interface spec. The kernel function pci_enable_msix_range()
8899 * is called to enable the MSI-X vectors. The device driver is responsible
8900 * for calling the individual request_irq() to register each MSI-X vector
8901 * with a interrupt handler, which is done in this function. Note that
8902 * later when device is unloading, the driver should always call free_irq()
8903 * on all MSI-X vectors it has done request_irq() on before calling
8904 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8905 * will be left with MSI-X enabled and leaks its vectors.
8909 * other values - error
8912 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8914 int vectors, rc, index;
8916 /* Set up MSI-X multi-message vectors */
8917 for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8918 phba->sli4_hba.msix_entries[index].entry = index;
8920 /* Configure MSI-X capability structure */
8921 vectors = phba->cfg_fcp_io_channel;
8922 if (phba->cfg_fof) {
8923 phba->sli4_hba.msix_entries[index].entry = index;
8926 rc = pci_enable_msix_range(phba->pcidev, phba->sli4_hba.msix_entries,
8929 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8930 "0484 PCI enable MSI-X failed (%d)\n", rc);
8935 /* Log MSI-X vector assignment */
8936 for (index = 0; index < vectors; index++)
8937 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8938 "0489 MSI-X entry[%d]: vector=x%x "
8939 "message=%d\n", index,
8940 phba->sli4_hba.msix_entries[index].vector,
8941 phba->sli4_hba.msix_entries[index].entry);
8943 /* Assign MSI-X vectors to interrupt handlers */
8944 for (index = 0; index < vectors; index++) {
8945 memset(&phba->sli4_hba.handler_name[index], 0, 16);
8946 snprintf((char *)&phba->sli4_hba.handler_name[index],
8947 LPFC_SLI4_HANDLER_NAME_SZ,
8948 LPFC_DRIVER_HANDLER_NAME"%d", index);
8950 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8951 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8952 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
8953 if (phba->cfg_fof && (index == (vectors - 1)))
8955 phba->sli4_hba.msix_entries[index].vector,
8956 &lpfc_sli4_fof_intr_handler, 0,
8957 (char *)&phba->sli4_hba.handler_name[index],
8958 &phba->sli4_hba.fcp_eq_hdl[index]);
8961 phba->sli4_hba.msix_entries[index].vector,
8962 &lpfc_sli4_hba_intr_handler, 0,
8963 (char *)&phba->sli4_hba.handler_name[index],
8964 &phba->sli4_hba.fcp_eq_hdl[index]);
8966 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8967 "0486 MSI-X fast-path (%d) "
8968 "request_irq failed (%d)\n", index, rc);
8976 if (vectors != phba->cfg_fcp_io_channel) {
8977 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8978 "3238 Reducing IO channels to match number of "
8979 "MSI-X vectors, requested %d got %d\n",
8980 phba->cfg_fcp_io_channel, vectors);
8981 phba->cfg_fcp_io_channel = vectors;
8984 if (!shost_use_blk_mq(lpfc_shost_from_vport(phba->pport)))
8985 lpfc_sli4_set_affinity(phba, vectors);
8989 /* free the irq already requested */
8990 for (--index; index >= 0; index--) {
8991 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
8993 free_irq(phba->sli4_hba.msix_entries[index].vector,
8994 &phba->sli4_hba.fcp_eq_hdl[index]);
8997 /* Unconfigure MSI-X capability structure */
8998 pci_disable_msix(phba->pcidev);
9005 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
9006 * @phba: pointer to lpfc hba data structure.
9008 * This routine is invoked to release the MSI-X vectors and then disable the
9009 * MSI-X interrupt mode to device with SLI-4 interface spec.
9012 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
9016 /* Free up MSI-X multi-message vectors */
9017 for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9018 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
9020 free_irq(phba->sli4_hba.msix_entries[index].vector,
9021 &phba->sli4_hba.fcp_eq_hdl[index]);
9023 if (phba->cfg_fof) {
9024 free_irq(phba->sli4_hba.msix_entries[index].vector,
9025 &phba->sli4_hba.fcp_eq_hdl[index]);
9028 pci_disable_msix(phba->pcidev);
9034 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
9035 * @phba: pointer to lpfc hba data structure.
9037 * This routine is invoked to enable the MSI interrupt mode to device with
9038 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
9039 * to enable the MSI vector. The device driver is responsible for calling
9040 * the request_irq() to register MSI vector with a interrupt the handler,
9041 * which is done in this function.
9045 * other values - error
9048 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
9052 rc = pci_enable_msi(phba->pcidev);
9054 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9055 "0487 PCI enable MSI mode success.\n");
9057 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9058 "0488 PCI enable MSI mode failed (%d)\n", rc);
9062 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9063 0, LPFC_DRIVER_NAME, phba);
9065 pci_disable_msi(phba->pcidev);
9066 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9067 "0490 MSI request_irq failed (%d)\n", rc);
9071 for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9072 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9073 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9076 if (phba->cfg_fof) {
9077 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9078 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9084 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
9085 * @phba: pointer to lpfc hba data structure.
9087 * This routine is invoked to disable the MSI interrupt mode to device with
9088 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
9089 * done request_irq() on before calling pci_disable_msi(). Failure to do so
9090 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
9094 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
9096 free_irq(phba->pcidev->irq, phba);
9097 pci_disable_msi(phba->pcidev);
9102 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
9103 * @phba: pointer to lpfc hba data structure.
9105 * This routine is invoked to enable device interrupt and associate driver's
9106 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
9107 * interface spec. Depends on the interrupt mode configured to the driver,
9108 * the driver will try to fallback from the configured interrupt mode to an
9109 * interrupt mode which is supported by the platform, kernel, and device in
9111 * MSI-X -> MSI -> IRQ.
9115 * other values - error
9118 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9120 uint32_t intr_mode = LPFC_INTR_ERROR;
9123 if (cfg_mode == 2) {
9124 /* Preparation before conf_msi mbox cmd */
9127 /* Now, try to enable MSI-X interrupt mode */
9128 retval = lpfc_sli4_enable_msix(phba);
9130 /* Indicate initialization to MSI-X mode */
9131 phba->intr_type = MSIX;
9137 /* Fallback to MSI if MSI-X initialization failed */
9138 if (cfg_mode >= 1 && phba->intr_type == NONE) {
9139 retval = lpfc_sli4_enable_msi(phba);
9141 /* Indicate initialization to MSI mode */
9142 phba->intr_type = MSI;
9147 /* Fallback to INTx if both MSI-X/MSI initalization failed */
9148 if (phba->intr_type == NONE) {
9149 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9150 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9152 /* Indicate initialization to INTx mode */
9153 phba->intr_type = INTx;
9155 for (index = 0; index < phba->cfg_fcp_io_channel;
9157 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9158 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9159 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9162 if (phba->cfg_fof) {
9163 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9164 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9165 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9174 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
9175 * @phba: pointer to lpfc hba data structure.
9177 * This routine is invoked to disable device interrupt and disassociate
9178 * the driver's interrupt handler(s) from interrupt vector(s) to device
9179 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
9180 * will release the interrupt vector(s) for the message signaled interrupt.
9183 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
9185 /* Disable the currently initialized interrupt mode */
9186 if (phba->intr_type == MSIX)
9187 lpfc_sli4_disable_msix(phba);
9188 else if (phba->intr_type == MSI)
9189 lpfc_sli4_disable_msi(phba);
9190 else if (phba->intr_type == INTx)
9191 free_irq(phba->pcidev->irq, phba);
9193 /* Reset interrupt management states */
9194 phba->intr_type = NONE;
9195 phba->sli.slistat.sli_intr = 0;
9201 * lpfc_unset_hba - Unset SLI3 hba device initialization
9202 * @phba: pointer to lpfc hba data structure.
9204 * This routine is invoked to unset the HBA device initialization steps to
9205 * a device with SLI-3 interface spec.
9208 lpfc_unset_hba(struct lpfc_hba *phba)
9210 struct lpfc_vport *vport = phba->pport;
9211 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
9213 spin_lock_irq(shost->host_lock);
9214 vport->load_flag |= FC_UNLOADING;
9215 spin_unlock_irq(shost->host_lock);
9217 kfree(phba->vpi_bmask);
9218 kfree(phba->vpi_ids);
9220 lpfc_stop_hba_timers(phba);
9222 phba->pport->work_port_events = 0;
9224 lpfc_sli_hba_down(phba);
9226 lpfc_sli_brdrestart(phba);
9228 lpfc_sli_disable_intr(phba);
9234 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
9235 * @phba: Pointer to HBA context object.
9237 * This function is called in the SLI4 code path to wait for completion
9238 * of device's XRIs exchange busy. It will check the XRI exchange busy
9239 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
9240 * that, it will check the XRI exchange busy on outstanding FCP and ELS
9241 * I/Os every 30 seconds, log error message, and wait forever. Only when
9242 * all XRI exchange busy complete, the driver unload shall proceed with
9243 * invoking the function reset ioctl mailbox command to the CNA and the
9244 * the rest of the driver unload resource release.
9247 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
9250 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9251 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9253 while (!fcp_xri_cmpl || !els_xri_cmpl) {
9254 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
9256 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9257 "2877 FCP XRI exchange busy "
9258 "wait time: %d seconds.\n",
9261 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9262 "2878 ELS XRI exchange busy "
9263 "wait time: %d seconds.\n",
9265 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
9266 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
9268 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
9269 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
9272 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9274 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9279 * lpfc_sli4_hba_unset - Unset the fcoe hba
9280 * @phba: Pointer to HBA context object.
9282 * This function is called in the SLI4 code path to reset the HBA's FCoE
9283 * function. The caller is not required to hold any lock. This routine
9284 * issues PCI function reset mailbox command to reset the FCoE function.
9285 * At the end of the function, it calls lpfc_hba_down_post function to
9286 * free any pending commands.
9289 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
9292 LPFC_MBOXQ_t *mboxq;
9293 struct pci_dev *pdev = phba->pcidev;
9295 lpfc_stop_hba_timers(phba);
9296 phba->sli4_hba.intr_enable = 0;
9299 * Gracefully wait out the potential current outstanding asynchronous
9303 /* First, block any pending async mailbox command from posted */
9304 spin_lock_irq(&phba->hbalock);
9305 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
9306 spin_unlock_irq(&phba->hbalock);
9307 /* Now, trying to wait it out if we can */
9308 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9310 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
9313 /* Forcefully release the outstanding mailbox command if timed out */
9314 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9315 spin_lock_irq(&phba->hbalock);
9316 mboxq = phba->sli.mbox_active;
9317 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
9318 __lpfc_mbox_cmpl_put(phba, mboxq);
9319 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9320 phba->sli.mbox_active = NULL;
9321 spin_unlock_irq(&phba->hbalock);
9324 /* Abort all iocbs associated with the hba */
9325 lpfc_sli_hba_iocb_abort(phba);
9327 /* Wait for completion of device XRI exchange busy */
9328 lpfc_sli4_xri_exchange_busy_wait(phba);
9330 /* Disable PCI subsystem interrupt */
9331 lpfc_sli4_disable_intr(phba);
9333 /* Disable SR-IOV if enabled */
9334 if (phba->cfg_sriov_nr_virtfn)
9335 pci_disable_sriov(pdev);
9337 /* Stop kthread signal shall trigger work_done one more time */
9338 kthread_stop(phba->worker_thread);
9340 /* Reset SLI4 HBA FCoE function */
9341 lpfc_pci_function_reset(phba);
9342 lpfc_sli4_queue_destroy(phba);
9344 /* Stop the SLI4 device port */
9345 phba->pport->work_port_events = 0;
9349 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
9350 * @phba: Pointer to HBA context object.
9351 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9353 * This function is called in the SLI4 code path to read the port's
9354 * sli4 capabilities.
9356 * This function may be be called from any context that can block-wait
9357 * for the completion. The expectation is that this routine is called
9358 * typically from probe_one or from the online routine.
9361 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9364 struct lpfc_mqe *mqe;
9365 struct lpfc_pc_sli4_params *sli4_params;
9369 mqe = &mboxq->u.mqe;
9371 /* Read the port's SLI4 Parameters port capabilities */
9372 lpfc_pc_sli4_params(mboxq);
9373 if (!phba->sli4_hba.intr_enable)
9374 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9376 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9377 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9383 sli4_params = &phba->sli4_hba.pc_sli4_params;
9384 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
9385 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
9386 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
9387 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
9388 &mqe->un.sli4_params);
9389 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
9390 &mqe->un.sli4_params);
9391 sli4_params->proto_types = mqe->un.sli4_params.word3;
9392 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
9393 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
9394 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
9395 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
9396 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
9397 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
9398 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
9399 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
9400 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
9401 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
9402 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
9403 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
9404 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
9405 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
9406 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
9407 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
9408 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
9409 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
9410 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
9411 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
9413 /* Make sure that sge_supp_len can be handled by the driver */
9414 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9415 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9421 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
9422 * @phba: Pointer to HBA context object.
9423 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9425 * This function is called in the SLI4 code path to read the port's
9426 * sli4 capabilities.
9428 * This function may be be called from any context that can block-wait
9429 * for the completion. The expectation is that this routine is called
9430 * typically from probe_one or from the online routine.
9433 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9436 struct lpfc_mqe *mqe = &mboxq->u.mqe;
9437 struct lpfc_pc_sli4_params *sli4_params;
9440 struct lpfc_sli4_parameters *mbx_sli4_parameters;
9443 * By default, the driver assumes the SLI4 port requires RPI
9444 * header postings. The SLI4_PARAM response will correct this
9447 phba->sli4_hba.rpi_hdrs_in_use = 1;
9449 /* Read the port's SLI4 Config Parameters */
9450 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
9451 sizeof(struct lpfc_sli4_cfg_mhdr));
9452 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9453 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
9454 length, LPFC_SLI4_MBX_EMBED);
9455 if (!phba->sli4_hba.intr_enable)
9456 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9458 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9459 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9463 sli4_params = &phba->sli4_hba.pc_sli4_params;
9464 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
9465 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
9466 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
9467 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
9468 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
9469 mbx_sli4_parameters);
9470 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
9471 mbx_sli4_parameters);
9472 if (bf_get(cfg_phwq, mbx_sli4_parameters))
9473 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
9475 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
9476 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
9477 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
9478 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
9479 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
9480 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
9481 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
9482 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
9483 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
9484 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
9485 mbx_sli4_parameters);
9486 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
9487 mbx_sli4_parameters);
9488 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
9489 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
9491 /* Make sure that sge_supp_len can be handled by the driver */
9492 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9493 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9499 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
9500 * @pdev: pointer to PCI device
9501 * @pid: pointer to PCI device identifier
9503 * This routine is to be called to attach a device with SLI-3 interface spec
9504 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9505 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9506 * information of the device and driver to see if the driver state that it can
9507 * support this kind of device. If the match is successful, the driver core
9508 * invokes this routine. If this routine determines it can claim the HBA, it
9509 * does all the initialization that it needs to do to handle the HBA properly.
9512 * 0 - driver can claim the device
9513 * negative value - driver can not claim the device
9516 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
9518 struct lpfc_hba *phba;
9519 struct lpfc_vport *vport = NULL;
9520 struct Scsi_Host *shost = NULL;
9522 uint32_t cfg_mode, intr_mode;
9524 /* Allocate memory for HBA structure */
9525 phba = lpfc_hba_alloc(pdev);
9529 /* Perform generic PCI device enabling operation */
9530 error = lpfc_enable_pci_dev(phba);
9534 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
9535 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
9537 goto out_disable_pci_dev;
9539 /* Set up SLI-3 specific device PCI memory space */
9540 error = lpfc_sli_pci_mem_setup(phba);
9542 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9543 "1402 Failed to set up pci memory space.\n");
9544 goto out_disable_pci_dev;
9547 /* Set up phase-1 common device driver resources */
9548 error = lpfc_setup_driver_resource_phase1(phba);
9550 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9551 "1403 Failed to set up driver resource.\n");
9552 goto out_unset_pci_mem_s3;
9555 /* Set up SLI-3 specific device driver resources */
9556 error = lpfc_sli_driver_resource_setup(phba);
9558 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9559 "1404 Failed to set up driver resource.\n");
9560 goto out_unset_pci_mem_s3;
9563 /* Initialize and populate the iocb list per host */
9564 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
9566 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9567 "1405 Failed to initialize iocb list.\n");
9568 goto out_unset_driver_resource_s3;
9571 /* Set up common device driver resources */
9572 error = lpfc_setup_driver_resource_phase2(phba);
9574 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9575 "1406 Failed to set up driver resource.\n");
9576 goto out_free_iocb_list;
9579 /* Get the default values for Model Name and Description */
9580 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9582 /* Create SCSI host to the physical port */
9583 error = lpfc_create_shost(phba);
9585 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9586 "1407 Failed to create scsi host.\n");
9587 goto out_unset_driver_resource;
9590 /* Configure sysfs attributes */
9591 vport = phba->pport;
9592 error = lpfc_alloc_sysfs_attr(vport);
9594 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9595 "1476 Failed to allocate sysfs attr\n");
9596 goto out_destroy_shost;
9599 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9600 /* Now, trying to enable interrupt and bring up the device */
9601 cfg_mode = phba->cfg_use_msi;
9603 /* Put device to a known state before enabling interrupt */
9604 lpfc_stop_port(phba);
9605 /* Configure and enable interrupt */
9606 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
9607 if (intr_mode == LPFC_INTR_ERROR) {
9608 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9609 "0431 Failed to enable interrupt.\n");
9611 goto out_free_sysfs_attr;
9613 /* SLI-3 HBA setup */
9614 if (lpfc_sli_hba_setup(phba)) {
9615 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9616 "1477 Failed to set up hba\n");
9618 goto out_remove_device;
9621 /* Wait 50ms for the interrupts of previous mailbox commands */
9623 /* Check active interrupts on message signaled interrupts */
9624 if (intr_mode == 0 ||
9625 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
9626 /* Log the current active interrupt mode */
9627 phba->intr_mode = intr_mode;
9628 lpfc_log_intr_mode(phba, intr_mode);
9631 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9632 "0447 Configure interrupt mode (%d) "
9633 "failed active interrupt test.\n",
9635 /* Disable the current interrupt mode */
9636 lpfc_sli_disable_intr(phba);
9637 /* Try next level of interrupt mode */
9638 cfg_mode = --intr_mode;
9642 /* Perform post initialization setup */
9643 lpfc_post_init_setup(phba);
9645 /* Check if there are static vports to be created. */
9646 lpfc_create_static_vport(phba);
9651 lpfc_unset_hba(phba);
9652 out_free_sysfs_attr:
9653 lpfc_free_sysfs_attr(vport);
9655 lpfc_destroy_shost(phba);
9656 out_unset_driver_resource:
9657 lpfc_unset_driver_resource_phase2(phba);
9659 lpfc_free_iocb_list(phba);
9660 out_unset_driver_resource_s3:
9661 lpfc_sli_driver_resource_unset(phba);
9662 out_unset_pci_mem_s3:
9663 lpfc_sli_pci_mem_unset(phba);
9664 out_disable_pci_dev:
9665 lpfc_disable_pci_dev(phba);
9667 scsi_host_put(shost);
9669 lpfc_hba_free(phba);
9674 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
9675 * @pdev: pointer to PCI device
9677 * This routine is to be called to disattach a device with SLI-3 interface
9678 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9679 * removed from PCI bus, it performs all the necessary cleanup for the HBA
9680 * device to be removed from the PCI subsystem properly.
9683 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
9685 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9686 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9687 struct lpfc_vport **vports;
9688 struct lpfc_hba *phba = vport->phba;
9690 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
9692 spin_lock_irq(&phba->hbalock);
9693 vport->load_flag |= FC_UNLOADING;
9694 spin_unlock_irq(&phba->hbalock);
9696 lpfc_free_sysfs_attr(vport);
9698 /* Release all the vports against this physical port */
9699 vports = lpfc_create_vport_work_array(phba);
9701 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9702 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9704 fc_vport_terminate(vports[i]->fc_vport);
9706 lpfc_destroy_vport_work_array(phba, vports);
9708 /* Remove FC host and then SCSI host with the physical port */
9709 fc_remove_host(shost);
9710 scsi_remove_host(shost);
9711 lpfc_cleanup(vport);
9714 * Bring down the SLI Layer. This step disable all interrupts,
9715 * clears the rings, discards all mailbox commands, and resets
9719 /* HBA interrupt will be disabled after this call */
9720 lpfc_sli_hba_down(phba);
9721 /* Stop kthread signal shall trigger work_done one more time */
9722 kthread_stop(phba->worker_thread);
9723 /* Final cleanup of txcmplq and reset the HBA */
9724 lpfc_sli_brdrestart(phba);
9726 kfree(phba->vpi_bmask);
9727 kfree(phba->vpi_ids);
9729 lpfc_stop_hba_timers(phba);
9730 spin_lock_irq(&phba->hbalock);
9731 list_del_init(&vport->listentry);
9732 spin_unlock_irq(&phba->hbalock);
9734 lpfc_debugfs_terminate(vport);
9736 /* Disable SR-IOV if enabled */
9737 if (phba->cfg_sriov_nr_virtfn)
9738 pci_disable_sriov(pdev);
9740 /* Disable interrupt */
9741 lpfc_sli_disable_intr(phba);
9743 scsi_host_put(shost);
9746 * Call scsi_free before mem_free since scsi bufs are released to their
9747 * corresponding pools here.
9749 lpfc_scsi_free(phba);
9750 lpfc_mem_free_all(phba);
9752 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9753 phba->hbqslimp.virt, phba->hbqslimp.phys);
9755 /* Free resources associated with SLI2 interface */
9756 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9757 phba->slim2p.virt, phba->slim2p.phys);
9759 /* unmap adapter SLIM and Control Registers */
9760 iounmap(phba->ctrl_regs_memmap_p);
9761 iounmap(phba->slim_memmap_p);
9763 lpfc_hba_free(phba);
9765 pci_release_selected_regions(pdev, bars);
9766 pci_disable_device(pdev);
9770 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9771 * @pdev: pointer to PCI device
9772 * @msg: power management message
9774 * This routine is to be called from the kernel's PCI subsystem to support
9775 * system Power Management (PM) to device with SLI-3 interface spec. When
9776 * PM invokes this method, it quiesces the device by stopping the driver's
9777 * worker thread for the device, turning off device's interrupt and DMA,
9778 * and bring the device offline. Note that as the driver implements the
9779 * minimum PM requirements to a power-aware driver's PM support for the
9780 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9781 * to the suspend() method call will be treated as SUSPEND and the driver will
9782 * fully reinitialize its device during resume() method call, the driver will
9783 * set device to PCI_D3hot state in PCI config space instead of setting it
9784 * according to the @msg provided by the PM.
9787 * 0 - driver suspended the device
9791 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9793 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9794 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9796 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9797 "0473 PCI device Power Management suspend.\n");
9799 /* Bring down the device */
9800 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9802 kthread_stop(phba->worker_thread);
9804 /* Disable interrupt from device */
9805 lpfc_sli_disable_intr(phba);
9807 /* Save device state to PCI config space */
9808 pci_save_state(pdev);
9809 pci_set_power_state(pdev, PCI_D3hot);
9815 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9816 * @pdev: pointer to PCI device
9818 * This routine is to be called from the kernel's PCI subsystem to support
9819 * system Power Management (PM) to device with SLI-3 interface spec. When PM
9820 * invokes this method, it restores the device's PCI config space state and
9821 * fully reinitializes the device and brings it online. Note that as the
9822 * driver implements the minimum PM requirements to a power-aware driver's
9823 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9824 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9825 * driver will fully reinitialize its device during resume() method call,
9826 * the device will be set to PCI_D0 directly in PCI config space before
9827 * restoring the state.
9830 * 0 - driver suspended the device
9834 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9836 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9837 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9841 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9842 "0452 PCI device Power Management resume.\n");
9844 /* Restore device state from PCI config space */
9845 pci_set_power_state(pdev, PCI_D0);
9846 pci_restore_state(pdev);
9849 * As the new kernel behavior of pci_restore_state() API call clears
9850 * device saved_state flag, need to save the restored state again.
9852 pci_save_state(pdev);
9854 if (pdev->is_busmaster)
9855 pci_set_master(pdev);
9857 /* Startup the kernel thread for this host adapter. */
9858 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9859 "lpfc_worker_%d", phba->brd_no);
9860 if (IS_ERR(phba->worker_thread)) {
9861 error = PTR_ERR(phba->worker_thread);
9862 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9863 "0434 PM resume failed to start worker "
9864 "thread: error=x%x.\n", error);
9868 /* Configure and enable interrupt */
9869 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9870 if (intr_mode == LPFC_INTR_ERROR) {
9871 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9872 "0430 PM resume Failed to enable interrupt\n");
9875 phba->intr_mode = intr_mode;
9877 /* Restart HBA and bring it online */
9878 lpfc_sli_brdrestart(phba);
9881 /* Log the current active interrupt mode */
9882 lpfc_log_intr_mode(phba, phba->intr_mode);
9888 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9889 * @phba: pointer to lpfc hba data structure.
9891 * This routine is called to prepare the SLI3 device for PCI slot recover. It
9892 * aborts all the outstanding SCSI I/Os to the pci device.
9895 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9897 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9898 "2723 PCI channel I/O abort preparing for recovery\n");
9901 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9902 * and let the SCSI mid-layer to retry them to recover.
9904 lpfc_sli_abort_fcp_rings(phba);
9908 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9909 * @phba: pointer to lpfc hba data structure.
9911 * This routine is called to prepare the SLI3 device for PCI slot reset. It
9912 * disables the device interrupt and pci device, and aborts the internal FCP
9916 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9918 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9919 "2710 PCI channel disable preparing for reset\n");
9921 /* Block any management I/Os to the device */
9922 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
9924 /* Block all SCSI devices' I/Os on the host */
9925 lpfc_scsi_dev_block(phba);
9927 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9928 lpfc_sli_flush_fcp_rings(phba);
9930 /* stop all timers */
9931 lpfc_stop_hba_timers(phba);
9933 /* Disable interrupt and pci device */
9934 lpfc_sli_disable_intr(phba);
9935 pci_disable_device(phba->pcidev);
9939 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9940 * @phba: pointer to lpfc hba data structure.
9942 * This routine is called to prepare the SLI3 device for PCI slot permanently
9943 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9947 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9949 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9950 "2711 PCI channel permanent disable for failure\n");
9951 /* Block all SCSI devices' I/Os on the host */
9952 lpfc_scsi_dev_block(phba);
9954 /* stop all timers */
9955 lpfc_stop_hba_timers(phba);
9957 /* Clean up all driver's outstanding SCSI I/Os */
9958 lpfc_sli_flush_fcp_rings(phba);
9962 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9963 * @pdev: pointer to PCI device.
9964 * @state: the current PCI connection state.
9966 * This routine is called from the PCI subsystem for I/O error handling to
9967 * device with SLI-3 interface spec. This function is called by the PCI
9968 * subsystem after a PCI bus error affecting this device has been detected.
9969 * When this function is invoked, it will need to stop all the I/Os and
9970 * interrupt(s) to the device. Once that is done, it will return
9971 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9975 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
9976 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9977 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9979 static pci_ers_result_t
9980 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9982 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9983 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9986 case pci_channel_io_normal:
9987 /* Non-fatal error, prepare for recovery */
9988 lpfc_sli_prep_dev_for_recover(phba);
9989 return PCI_ERS_RESULT_CAN_RECOVER;
9990 case pci_channel_io_frozen:
9991 /* Fatal error, prepare for slot reset */
9992 lpfc_sli_prep_dev_for_reset(phba);
9993 return PCI_ERS_RESULT_NEED_RESET;
9994 case pci_channel_io_perm_failure:
9995 /* Permanent failure, prepare for device down */
9996 lpfc_sli_prep_dev_for_perm_failure(phba);
9997 return PCI_ERS_RESULT_DISCONNECT;
9999 /* Unknown state, prepare and request slot reset */
10000 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10001 "0472 Unknown PCI error state: x%x\n", state);
10002 lpfc_sli_prep_dev_for_reset(phba);
10003 return PCI_ERS_RESULT_NEED_RESET;
10008 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
10009 * @pdev: pointer to PCI device.
10011 * This routine is called from the PCI subsystem for error handling to
10012 * device with SLI-3 interface spec. This is called after PCI bus has been
10013 * reset to restart the PCI card from scratch, as if from a cold-boot.
10014 * During the PCI subsystem error recovery, after driver returns
10015 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10016 * recovery and then call this routine before calling the .resume method
10017 * to recover the device. This function will initialize the HBA device,
10018 * enable the interrupt, but it will just put the HBA to offline state
10019 * without passing any I/O traffic.
10022 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10023 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10025 static pci_ers_result_t
10026 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
10028 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10029 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10030 struct lpfc_sli *psli = &phba->sli;
10031 uint32_t intr_mode;
10033 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10034 if (pci_enable_device_mem(pdev)) {
10035 printk(KERN_ERR "lpfc: Cannot re-enable "
10036 "PCI device after reset.\n");
10037 return PCI_ERS_RESULT_DISCONNECT;
10040 pci_restore_state(pdev);
10043 * As the new kernel behavior of pci_restore_state() API call clears
10044 * device saved_state flag, need to save the restored state again.
10046 pci_save_state(pdev);
10048 if (pdev->is_busmaster)
10049 pci_set_master(pdev);
10051 spin_lock_irq(&phba->hbalock);
10052 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10053 spin_unlock_irq(&phba->hbalock);
10055 /* Configure and enable interrupt */
10056 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10057 if (intr_mode == LPFC_INTR_ERROR) {
10058 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10059 "0427 Cannot re-enable interrupt after "
10061 return PCI_ERS_RESULT_DISCONNECT;
10063 phba->intr_mode = intr_mode;
10065 /* Take device offline, it will perform cleanup */
10066 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10067 lpfc_offline(phba);
10068 lpfc_sli_brdrestart(phba);
10070 /* Log the current active interrupt mode */
10071 lpfc_log_intr_mode(phba, phba->intr_mode);
10073 return PCI_ERS_RESULT_RECOVERED;
10077 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
10078 * @pdev: pointer to PCI device
10080 * This routine is called from the PCI subsystem for error handling to device
10081 * with SLI-3 interface spec. It is called when kernel error recovery tells
10082 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10083 * error recovery. After this call, traffic can start to flow from this device
10087 lpfc_io_resume_s3(struct pci_dev *pdev)
10089 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10090 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10092 /* Bring device online, it will be no-op for non-fatal error resume */
10095 /* Clean up Advanced Error Reporting (AER) if needed */
10096 if (phba->hba_flag & HBA_AER_ENABLED)
10097 pci_cleanup_aer_uncorrect_error_status(pdev);
10101 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
10102 * @phba: pointer to lpfc hba data structure.
10104 * returns the number of ELS/CT IOCBs to reserve
10107 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
10109 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
10111 if (phba->sli_rev == LPFC_SLI_REV4) {
10112 if (max_xri <= 100)
10114 else if (max_xri <= 256)
10116 else if (max_xri <= 512)
10118 else if (max_xri <= 1024)
10120 else if (max_xri <= 1536)
10122 else if (max_xri <= 2048)
10131 * lpfc_write_firmware - attempt to write a firmware image to the port
10132 * @fw: pointer to firmware image returned from request_firmware.
10133 * @phba: pointer to lpfc hba data structure.
10137 lpfc_write_firmware(const struct firmware *fw, void *context)
10139 struct lpfc_hba *phba = (struct lpfc_hba *)context;
10140 char fwrev[FW_REV_STR_SIZE];
10141 struct lpfc_grp_hdr *image;
10142 struct list_head dma_buffer_list;
10144 struct lpfc_dmabuf *dmabuf, *next;
10145 uint32_t offset = 0, temp_offset = 0;
10147 /* It can be null in no-wait mode, sanity check */
10152 image = (struct lpfc_grp_hdr *)fw->data;
10154 INIT_LIST_HEAD(&dma_buffer_list);
10155 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
10156 (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
10157 LPFC_FILE_TYPE_GROUP) ||
10158 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
10159 (be32_to_cpu(image->size) != fw->size)) {
10160 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10161 "3022 Invalid FW image found. "
10162 "Magic:%x Type:%x ID:%x\n",
10163 be32_to_cpu(image->magic_number),
10164 bf_get_be32(lpfc_grp_hdr_file_type, image),
10165 bf_get_be32(lpfc_grp_hdr_id, image));
10169 lpfc_decode_firmware_rev(phba, fwrev, 1);
10170 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
10171 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10172 "3023 Updating Firmware, Current Version:%s "
10173 "New Version:%s\n",
10174 fwrev, image->revision);
10175 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
10176 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
10182 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
10186 if (!dmabuf->virt) {
10191 list_add_tail(&dmabuf->list, &dma_buffer_list);
10193 while (offset < fw->size) {
10194 temp_offset = offset;
10195 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
10196 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
10197 memcpy(dmabuf->virt,
10198 fw->data + temp_offset,
10199 fw->size - temp_offset);
10200 temp_offset = fw->size;
10203 memcpy(dmabuf->virt, fw->data + temp_offset,
10205 temp_offset += SLI4_PAGE_SIZE;
10207 rc = lpfc_wr_object(phba, &dma_buffer_list,
10208 (fw->size - offset), &offset);
10216 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
10217 list_del(&dmabuf->list);
10218 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
10219 dmabuf->virt, dmabuf->phys);
10222 release_firmware(fw);
10224 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10225 "3024 Firmware update done: %d.\n", rc);
10230 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
10231 * @phba: pointer to lpfc hba data structure.
10233 * This routine is called to perform Linux generic firmware upgrade on device
10234 * that supports such feature.
10237 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
10239 uint8_t file_name[ELX_MODEL_NAME_SIZE];
10241 const struct firmware *fw;
10243 /* Only supported on SLI4 interface type 2 for now */
10244 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
10245 LPFC_SLI_INTF_IF_TYPE_2)
10248 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
10250 if (fw_upgrade == INT_FW_UPGRADE) {
10251 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
10252 file_name, &phba->pcidev->dev,
10253 GFP_KERNEL, (void *)phba,
10254 lpfc_write_firmware);
10255 } else if (fw_upgrade == RUN_FW_UPGRADE) {
10256 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
10258 lpfc_write_firmware(fw, (void *)phba);
10267 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
10268 * @pdev: pointer to PCI device
10269 * @pid: pointer to PCI device identifier
10271 * This routine is called from the kernel's PCI subsystem to device with
10272 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10273 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10274 * information of the device and driver to see if the driver state that it
10275 * can support this kind of device. If the match is successful, the driver
10276 * core invokes this routine. If this routine determines it can claim the HBA,
10277 * it does all the initialization that it needs to do to handle the HBA
10281 * 0 - driver can claim the device
10282 * negative value - driver can not claim the device
10285 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
10287 struct lpfc_hba *phba;
10288 struct lpfc_vport *vport = NULL;
10289 struct Scsi_Host *shost = NULL;
10291 uint32_t cfg_mode, intr_mode;
10292 int adjusted_fcp_io_channel;
10294 /* Allocate memory for HBA structure */
10295 phba = lpfc_hba_alloc(pdev);
10299 /* Perform generic PCI device enabling operation */
10300 error = lpfc_enable_pci_dev(phba);
10302 goto out_free_phba;
10304 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
10305 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
10307 goto out_disable_pci_dev;
10309 /* Set up SLI-4 specific device PCI memory space */
10310 error = lpfc_sli4_pci_mem_setup(phba);
10312 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10313 "1410 Failed to set up pci memory space.\n");
10314 goto out_disable_pci_dev;
10317 /* Set up phase-1 common device driver resources */
10318 error = lpfc_setup_driver_resource_phase1(phba);
10320 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10321 "1411 Failed to set up driver resource.\n");
10322 goto out_unset_pci_mem_s4;
10325 /* Set up SLI-4 Specific device driver resources */
10326 error = lpfc_sli4_driver_resource_setup(phba);
10328 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10329 "1412 Failed to set up driver resource.\n");
10330 goto out_unset_pci_mem_s4;
10333 /* Initialize and populate the iocb list per host */
10335 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10336 "2821 initialize iocb list %d.\n",
10337 phba->cfg_iocb_cnt*1024);
10338 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
10341 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10342 "1413 Failed to initialize iocb list.\n");
10343 goto out_unset_driver_resource_s4;
10346 INIT_LIST_HEAD(&phba->active_rrq_list);
10347 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
10349 /* Set up common device driver resources */
10350 error = lpfc_setup_driver_resource_phase2(phba);
10352 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10353 "1414 Failed to set up driver resource.\n");
10354 goto out_free_iocb_list;
10357 /* Get the default values for Model Name and Description */
10358 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10360 /* Create SCSI host to the physical port */
10361 error = lpfc_create_shost(phba);
10363 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10364 "1415 Failed to create scsi host.\n");
10365 goto out_unset_driver_resource;
10368 /* Configure sysfs attributes */
10369 vport = phba->pport;
10370 error = lpfc_alloc_sysfs_attr(vport);
10372 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10373 "1416 Failed to allocate sysfs attr\n");
10374 goto out_destroy_shost;
10377 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10378 /* Now, trying to enable interrupt and bring up the device */
10379 cfg_mode = phba->cfg_use_msi;
10381 /* Put device to a known state before enabling interrupt */
10382 lpfc_stop_port(phba);
10383 /* Configure and enable interrupt */
10384 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
10385 if (intr_mode == LPFC_INTR_ERROR) {
10386 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10387 "0426 Failed to enable interrupt.\n");
10389 goto out_free_sysfs_attr;
10391 /* Default to single EQ for non-MSI-X */
10392 if (phba->intr_type != MSIX)
10393 adjusted_fcp_io_channel = 1;
10395 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
10396 phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
10397 /* Set up SLI-4 HBA */
10398 if (lpfc_sli4_hba_setup(phba)) {
10399 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10400 "1421 Failed to set up hba\n");
10402 goto out_disable_intr;
10405 /* Log the current active interrupt mode */
10406 phba->intr_mode = intr_mode;
10407 lpfc_log_intr_mode(phba, intr_mode);
10409 /* Perform post initialization setup */
10410 lpfc_post_init_setup(phba);
10412 /* check for firmware upgrade or downgrade */
10413 if (phba->cfg_request_firmware_upgrade)
10414 ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
10416 /* Check if there are static vports to be created. */
10417 lpfc_create_static_vport(phba);
10421 lpfc_sli4_disable_intr(phba);
10422 out_free_sysfs_attr:
10423 lpfc_free_sysfs_attr(vport);
10425 lpfc_destroy_shost(phba);
10426 out_unset_driver_resource:
10427 lpfc_unset_driver_resource_phase2(phba);
10428 out_free_iocb_list:
10429 lpfc_free_iocb_list(phba);
10430 out_unset_driver_resource_s4:
10431 lpfc_sli4_driver_resource_unset(phba);
10432 out_unset_pci_mem_s4:
10433 lpfc_sli4_pci_mem_unset(phba);
10434 out_disable_pci_dev:
10435 lpfc_disable_pci_dev(phba);
10437 scsi_host_put(shost);
10439 lpfc_hba_free(phba);
10444 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
10445 * @pdev: pointer to PCI device
10447 * This routine is called from the kernel's PCI subsystem to device with
10448 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10449 * removed from PCI bus, it performs all the necessary cleanup for the HBA
10450 * device to be removed from the PCI subsystem properly.
10453 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
10455 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10456 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10457 struct lpfc_vport **vports;
10458 struct lpfc_hba *phba = vport->phba;
10461 /* Mark the device unloading flag */
10462 spin_lock_irq(&phba->hbalock);
10463 vport->load_flag |= FC_UNLOADING;
10464 spin_unlock_irq(&phba->hbalock);
10466 /* Free the HBA sysfs attributes */
10467 lpfc_free_sysfs_attr(vport);
10469 /* Release all the vports against this physical port */
10470 vports = lpfc_create_vport_work_array(phba);
10471 if (vports != NULL)
10472 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10473 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10475 fc_vport_terminate(vports[i]->fc_vport);
10477 lpfc_destroy_vport_work_array(phba, vports);
10479 /* Remove FC host and then SCSI host with the physical port */
10480 fc_remove_host(shost);
10481 scsi_remove_host(shost);
10483 /* Perform cleanup on the physical port */
10484 lpfc_cleanup(vport);
10487 * Bring down the SLI Layer. This step disables all interrupts,
10488 * clears the rings, discards all mailbox commands, and resets
10489 * the HBA FCoE function.
10491 lpfc_debugfs_terminate(vport);
10492 lpfc_sli4_hba_unset(phba);
10494 spin_lock_irq(&phba->hbalock);
10495 list_del_init(&vport->listentry);
10496 spin_unlock_irq(&phba->hbalock);
10498 /* Perform scsi free before driver resource_unset since scsi
10499 * buffers are released to their corresponding pools here.
10501 lpfc_scsi_free(phba);
10503 lpfc_sli4_driver_resource_unset(phba);
10505 /* Unmap adapter Control and Doorbell registers */
10506 lpfc_sli4_pci_mem_unset(phba);
10508 /* Release PCI resources and disable device's PCI function */
10509 scsi_host_put(shost);
10510 lpfc_disable_pci_dev(phba);
10512 /* Finally, free the driver's device data structure */
10513 lpfc_hba_free(phba);
10519 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
10520 * @pdev: pointer to PCI device
10521 * @msg: power management message
10523 * This routine is called from the kernel's PCI subsystem to support system
10524 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
10525 * this method, it quiesces the device by stopping the driver's worker
10526 * thread for the device, turning off device's interrupt and DMA, and bring
10527 * the device offline. Note that as the driver implements the minimum PM
10528 * requirements to a power-aware driver's PM support for suspend/resume -- all
10529 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
10530 * method call will be treated as SUSPEND and the driver will fully
10531 * reinitialize its device during resume() method call, the driver will set
10532 * device to PCI_D3hot state in PCI config space instead of setting it
10533 * according to the @msg provided by the PM.
10536 * 0 - driver suspended the device
10540 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
10542 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10543 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10545 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10546 "2843 PCI device Power Management suspend.\n");
10548 /* Bring down the device */
10549 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10550 lpfc_offline(phba);
10551 kthread_stop(phba->worker_thread);
10553 /* Disable interrupt from device */
10554 lpfc_sli4_disable_intr(phba);
10555 lpfc_sli4_queue_destroy(phba);
10557 /* Save device state to PCI config space */
10558 pci_save_state(pdev);
10559 pci_set_power_state(pdev, PCI_D3hot);
10565 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
10566 * @pdev: pointer to PCI device
10568 * This routine is called from the kernel's PCI subsystem to support system
10569 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
10570 * this method, it restores the device's PCI config space state and fully
10571 * reinitializes the device and brings it online. Note that as the driver
10572 * implements the minimum PM requirements to a power-aware driver's PM for
10573 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10574 * to the suspend() method call will be treated as SUSPEND and the driver
10575 * will fully reinitialize its device during resume() method call, the device
10576 * will be set to PCI_D0 directly in PCI config space before restoring the
10580 * 0 - driver suspended the device
10584 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
10586 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10587 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10588 uint32_t intr_mode;
10591 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10592 "0292 PCI device Power Management resume.\n");
10594 /* Restore device state from PCI config space */
10595 pci_set_power_state(pdev, PCI_D0);
10596 pci_restore_state(pdev);
10599 * As the new kernel behavior of pci_restore_state() API call clears
10600 * device saved_state flag, need to save the restored state again.
10602 pci_save_state(pdev);
10604 if (pdev->is_busmaster)
10605 pci_set_master(pdev);
10607 /* Startup the kernel thread for this host adapter. */
10608 phba->worker_thread = kthread_run(lpfc_do_work, phba,
10609 "lpfc_worker_%d", phba->brd_no);
10610 if (IS_ERR(phba->worker_thread)) {
10611 error = PTR_ERR(phba->worker_thread);
10612 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10613 "0293 PM resume failed to start worker "
10614 "thread: error=x%x.\n", error);
10618 /* Configure and enable interrupt */
10619 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10620 if (intr_mode == LPFC_INTR_ERROR) {
10621 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10622 "0294 PM resume Failed to enable interrupt\n");
10625 phba->intr_mode = intr_mode;
10627 /* Restart HBA and bring it online */
10628 lpfc_sli_brdrestart(phba);
10631 /* Log the current active interrupt mode */
10632 lpfc_log_intr_mode(phba, phba->intr_mode);
10638 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
10639 * @phba: pointer to lpfc hba data structure.
10641 * This routine is called to prepare the SLI4 device for PCI slot recover. It
10642 * aborts all the outstanding SCSI I/Os to the pci device.
10645 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
10647 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10648 "2828 PCI channel I/O abort preparing for recovery\n");
10650 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10651 * and let the SCSI mid-layer to retry them to recover.
10653 lpfc_sli_abort_fcp_rings(phba);
10657 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
10658 * @phba: pointer to lpfc hba data structure.
10660 * This routine is called to prepare the SLI4 device for PCI slot reset. It
10661 * disables the device interrupt and pci device, and aborts the internal FCP
10665 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
10667 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10668 "2826 PCI channel disable preparing for reset\n");
10670 /* Block any management I/Os to the device */
10671 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
10673 /* Block all SCSI devices' I/Os on the host */
10674 lpfc_scsi_dev_block(phba);
10676 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10677 lpfc_sli_flush_fcp_rings(phba);
10679 /* stop all timers */
10680 lpfc_stop_hba_timers(phba);
10682 /* Disable interrupt and pci device */
10683 lpfc_sli4_disable_intr(phba);
10684 lpfc_sli4_queue_destroy(phba);
10685 pci_disable_device(phba->pcidev);
10689 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10690 * @phba: pointer to lpfc hba data structure.
10692 * This routine is called to prepare the SLI4 device for PCI slot permanently
10693 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10697 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10699 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10700 "2827 PCI channel permanent disable for failure\n");
10702 /* Block all SCSI devices' I/Os on the host */
10703 lpfc_scsi_dev_block(phba);
10705 /* stop all timers */
10706 lpfc_stop_hba_timers(phba);
10708 /* Clean up all driver's outstanding SCSI I/Os */
10709 lpfc_sli_flush_fcp_rings(phba);
10713 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10714 * @pdev: pointer to PCI device.
10715 * @state: the current PCI connection state.
10717 * This routine is called from the PCI subsystem for error handling to device
10718 * with SLI-4 interface spec. This function is called by the PCI subsystem
10719 * after a PCI bus error affecting this device has been detected. When this
10720 * function is invoked, it will need to stop all the I/Os and interrupt(s)
10721 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10722 * for the PCI subsystem to perform proper recovery as desired.
10725 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10726 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10728 static pci_ers_result_t
10729 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10731 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10732 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10735 case pci_channel_io_normal:
10736 /* Non-fatal error, prepare for recovery */
10737 lpfc_sli4_prep_dev_for_recover(phba);
10738 return PCI_ERS_RESULT_CAN_RECOVER;
10739 case pci_channel_io_frozen:
10740 /* Fatal error, prepare for slot reset */
10741 lpfc_sli4_prep_dev_for_reset(phba);
10742 return PCI_ERS_RESULT_NEED_RESET;
10743 case pci_channel_io_perm_failure:
10744 /* Permanent failure, prepare for device down */
10745 lpfc_sli4_prep_dev_for_perm_failure(phba);
10746 return PCI_ERS_RESULT_DISCONNECT;
10748 /* Unknown state, prepare and request slot reset */
10749 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10750 "2825 Unknown PCI error state: x%x\n", state);
10751 lpfc_sli4_prep_dev_for_reset(phba);
10752 return PCI_ERS_RESULT_NEED_RESET;
10757 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10758 * @pdev: pointer to PCI device.
10760 * This routine is called from the PCI subsystem for error handling to device
10761 * with SLI-4 interface spec. It is called after PCI bus has been reset to
10762 * restart the PCI card from scratch, as if from a cold-boot. During the
10763 * PCI subsystem error recovery, after the driver returns
10764 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10765 * recovery and then call this routine before calling the .resume method to
10766 * recover the device. This function will initialize the HBA device, enable
10767 * the interrupt, but it will just put the HBA to offline state without
10768 * passing any I/O traffic.
10771 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10772 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10774 static pci_ers_result_t
10775 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10777 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10778 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10779 struct lpfc_sli *psli = &phba->sli;
10780 uint32_t intr_mode;
10782 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10783 if (pci_enable_device_mem(pdev)) {
10784 printk(KERN_ERR "lpfc: Cannot re-enable "
10785 "PCI device after reset.\n");
10786 return PCI_ERS_RESULT_DISCONNECT;
10789 pci_restore_state(pdev);
10792 * As the new kernel behavior of pci_restore_state() API call clears
10793 * device saved_state flag, need to save the restored state again.
10795 pci_save_state(pdev);
10797 if (pdev->is_busmaster)
10798 pci_set_master(pdev);
10800 spin_lock_irq(&phba->hbalock);
10801 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10802 spin_unlock_irq(&phba->hbalock);
10804 /* Configure and enable interrupt */
10805 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10806 if (intr_mode == LPFC_INTR_ERROR) {
10807 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10808 "2824 Cannot re-enable interrupt after "
10810 return PCI_ERS_RESULT_DISCONNECT;
10812 phba->intr_mode = intr_mode;
10814 /* Log the current active interrupt mode */
10815 lpfc_log_intr_mode(phba, phba->intr_mode);
10817 return PCI_ERS_RESULT_RECOVERED;
10821 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10822 * @pdev: pointer to PCI device
10824 * This routine is called from the PCI subsystem for error handling to device
10825 * with SLI-4 interface spec. It is called when kernel error recovery tells
10826 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10827 * error recovery. After this call, traffic can start to flow from this device
10831 lpfc_io_resume_s4(struct pci_dev *pdev)
10833 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10834 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10837 * In case of slot reset, as function reset is performed through
10838 * mailbox command which needs DMA to be enabled, this operation
10839 * has to be moved to the io resume phase. Taking device offline
10840 * will perform the necessary cleanup.
10842 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10843 /* Perform device reset */
10844 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10845 lpfc_offline(phba);
10846 lpfc_sli_brdrestart(phba);
10847 /* Bring the device back online */
10851 /* Clean up Advanced Error Reporting (AER) if needed */
10852 if (phba->hba_flag & HBA_AER_ENABLED)
10853 pci_cleanup_aer_uncorrect_error_status(pdev);
10857 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10858 * @pdev: pointer to PCI device
10859 * @pid: pointer to PCI device identifier
10861 * This routine is to be registered to the kernel's PCI subsystem. When an
10862 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10863 * at PCI device-specific information of the device and driver to see if the
10864 * driver state that it can support this kind of device. If the match is
10865 * successful, the driver core invokes this routine. This routine dispatches
10866 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10867 * do all the initialization that it needs to do to handle the HBA device
10871 * 0 - driver can claim the device
10872 * negative value - driver can not claim the device
10875 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10878 struct lpfc_sli_intf intf;
10880 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
10883 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
10884 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
10885 rc = lpfc_pci_probe_one_s4(pdev, pid);
10887 rc = lpfc_pci_probe_one_s3(pdev, pid);
10893 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10894 * @pdev: pointer to PCI device
10896 * This routine is to be registered to the kernel's PCI subsystem. When an
10897 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10898 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10899 * remove routine, which will perform all the necessary cleanup for the
10900 * device to be removed from the PCI subsystem properly.
10903 lpfc_pci_remove_one(struct pci_dev *pdev)
10905 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10906 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10908 switch (phba->pci_dev_grp) {
10909 case LPFC_PCI_DEV_LP:
10910 lpfc_pci_remove_one_s3(pdev);
10912 case LPFC_PCI_DEV_OC:
10913 lpfc_pci_remove_one_s4(pdev);
10916 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10917 "1424 Invalid PCI device group: 0x%x\n",
10918 phba->pci_dev_grp);
10925 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10926 * @pdev: pointer to PCI device
10927 * @msg: power management message
10929 * This routine is to be registered to the kernel's PCI subsystem to support
10930 * system Power Management (PM). When PM invokes this method, it dispatches
10931 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10932 * suspend the device.
10935 * 0 - driver suspended the device
10939 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10941 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10942 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10945 switch (phba->pci_dev_grp) {
10946 case LPFC_PCI_DEV_LP:
10947 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10949 case LPFC_PCI_DEV_OC:
10950 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10953 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10954 "1425 Invalid PCI device group: 0x%x\n",
10955 phba->pci_dev_grp);
10962 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10963 * @pdev: pointer to PCI device
10965 * This routine is to be registered to the kernel's PCI subsystem to support
10966 * system Power Management (PM). When PM invokes this method, it dispatches
10967 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10968 * resume the device.
10971 * 0 - driver suspended the device
10975 lpfc_pci_resume_one(struct pci_dev *pdev)
10977 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10978 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10981 switch (phba->pci_dev_grp) {
10982 case LPFC_PCI_DEV_LP:
10983 rc = lpfc_pci_resume_one_s3(pdev);
10985 case LPFC_PCI_DEV_OC:
10986 rc = lpfc_pci_resume_one_s4(pdev);
10989 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10990 "1426 Invalid PCI device group: 0x%x\n",
10991 phba->pci_dev_grp);
10998 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
10999 * @pdev: pointer to PCI device.
11000 * @state: the current PCI connection state.
11002 * This routine is registered to the PCI subsystem for error handling. This
11003 * function is called by the PCI subsystem after a PCI bus error affecting
11004 * this device has been detected. When this routine is invoked, it dispatches
11005 * the action to the proper SLI-3 or SLI-4 device error detected handling
11006 * routine, which will perform the proper error detected operation.
11009 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11010 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11012 static pci_ers_result_t
11013 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
11015 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11016 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11017 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11019 switch (phba->pci_dev_grp) {
11020 case LPFC_PCI_DEV_LP:
11021 rc = lpfc_io_error_detected_s3(pdev, state);
11023 case LPFC_PCI_DEV_OC:
11024 rc = lpfc_io_error_detected_s4(pdev, state);
11027 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11028 "1427 Invalid PCI device group: 0x%x\n",
11029 phba->pci_dev_grp);
11036 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
11037 * @pdev: pointer to PCI device.
11039 * This routine is registered to the PCI subsystem for error handling. This
11040 * function is called after PCI bus has been reset to restart the PCI card
11041 * from scratch, as if from a cold-boot. When this routine is invoked, it
11042 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
11043 * routine, which will perform the proper device reset.
11046 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
11047 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11049 static pci_ers_result_t
11050 lpfc_io_slot_reset(struct pci_dev *pdev)
11052 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11053 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11054 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11056 switch (phba->pci_dev_grp) {
11057 case LPFC_PCI_DEV_LP:
11058 rc = lpfc_io_slot_reset_s3(pdev);
11060 case LPFC_PCI_DEV_OC:
11061 rc = lpfc_io_slot_reset_s4(pdev);
11064 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11065 "1428 Invalid PCI device group: 0x%x\n",
11066 phba->pci_dev_grp);
11073 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
11074 * @pdev: pointer to PCI device
11076 * This routine is registered to the PCI subsystem for error handling. It
11077 * is called when kernel error recovery tells the lpfc driver that it is
11078 * OK to resume normal PCI operation after PCI bus error recovery. When
11079 * this routine is invoked, it dispatches the action to the proper SLI-3
11080 * or SLI-4 device io_resume routine, which will resume the device operation.
11083 lpfc_io_resume(struct pci_dev *pdev)
11085 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11086 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11088 switch (phba->pci_dev_grp) {
11089 case LPFC_PCI_DEV_LP:
11090 lpfc_io_resume_s3(pdev);
11092 case LPFC_PCI_DEV_OC:
11093 lpfc_io_resume_s4(pdev);
11096 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11097 "1429 Invalid PCI device group: 0x%x\n",
11098 phba->pci_dev_grp);
11105 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
11106 * @phba: pointer to lpfc hba data structure.
11108 * This routine checks to see if OAS is supported for this adapter. If
11109 * supported, the configure Flash Optimized Fabric flag is set. Otherwise,
11110 * the enable oas flag is cleared and the pool created for OAS device data
11115 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
11118 if (!phba->cfg_EnableXLane)
11121 if (phba->sli4_hba.pc_sli4_params.oas_supported) {
11125 if (phba->device_data_mem_pool)
11126 mempool_destroy(phba->device_data_mem_pool);
11127 phba->device_data_mem_pool = NULL;
11134 * lpfc_fof_queue_setup - Set up all the fof queues
11135 * @phba: pointer to lpfc hba data structure.
11137 * This routine is invoked to set up all the fof queues for the FC HBA
11142 * -ENOMEM - No available memory
11145 lpfc_fof_queue_setup(struct lpfc_hba *phba)
11147 struct lpfc_sli *psli = &phba->sli;
11150 rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
11154 if (phba->cfg_fof) {
11156 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
11157 phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
11161 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
11162 phba->sli4_hba.oas_cq, LPFC_FCP);
11166 phba->sli4_hba.oas_cq->pring = &psli->ring[LPFC_FCP_OAS_RING];
11167 phba->sli4_hba.oas_ring = &psli->ring[LPFC_FCP_OAS_RING];
11173 lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
11175 lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
11181 * lpfc_fof_queue_create - Create all the fof queues
11182 * @phba: pointer to lpfc hba data structure.
11184 * This routine is invoked to allocate all the fof queues for the FC HBA
11185 * operation. For each SLI4 queue type, the parameters such as queue entry
11186 * count (queue depth) shall be taken from the module parameter. For now,
11187 * we just use some constant number as place holder.
11191 * -ENOMEM - No availble memory
11192 * -EIO - The mailbox failed to complete successfully.
11195 lpfc_fof_queue_create(struct lpfc_hba *phba)
11197 struct lpfc_queue *qdesc;
11199 /* Create FOF EQ */
11200 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
11201 phba->sli4_hba.eq_ecount);
11205 phba->sli4_hba.fof_eq = qdesc;
11207 if (phba->cfg_fof) {
11209 /* Create OAS CQ */
11210 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
11211 phba->sli4_hba.cq_ecount);
11215 phba->sli4_hba.oas_cq = qdesc;
11217 /* Create OAS WQ */
11218 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
11219 phba->sli4_hba.wq_ecount);
11223 phba->sli4_hba.oas_wq = qdesc;
11229 lpfc_fof_queue_destroy(phba);
11234 * lpfc_fof_queue_destroy - Destroy all the fof queues
11235 * @phba: pointer to lpfc hba data structure.
11237 * This routine is invoked to release all the SLI4 queues with the FC HBA
11244 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
11246 /* Release FOF Event queue */
11247 if (phba->sli4_hba.fof_eq != NULL) {
11248 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
11249 phba->sli4_hba.fof_eq = NULL;
11252 /* Release OAS Completion queue */
11253 if (phba->sli4_hba.oas_cq != NULL) {
11254 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
11255 phba->sli4_hba.oas_cq = NULL;
11258 /* Release OAS Work queue */
11259 if (phba->sli4_hba.oas_wq != NULL) {
11260 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
11261 phba->sli4_hba.oas_wq = NULL;
11266 static struct pci_device_id lpfc_id_table[] = {
11267 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
11268 PCI_ANY_ID, PCI_ANY_ID, },
11269 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
11270 PCI_ANY_ID, PCI_ANY_ID, },
11271 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
11272 PCI_ANY_ID, PCI_ANY_ID, },
11273 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
11274 PCI_ANY_ID, PCI_ANY_ID, },
11275 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
11276 PCI_ANY_ID, PCI_ANY_ID, },
11277 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
11278 PCI_ANY_ID, PCI_ANY_ID, },
11279 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
11280 PCI_ANY_ID, PCI_ANY_ID, },
11281 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
11282 PCI_ANY_ID, PCI_ANY_ID, },
11283 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
11284 PCI_ANY_ID, PCI_ANY_ID, },
11285 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
11286 PCI_ANY_ID, PCI_ANY_ID, },
11287 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
11288 PCI_ANY_ID, PCI_ANY_ID, },
11289 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
11290 PCI_ANY_ID, PCI_ANY_ID, },
11291 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
11292 PCI_ANY_ID, PCI_ANY_ID, },
11293 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
11294 PCI_ANY_ID, PCI_ANY_ID, },
11295 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
11296 PCI_ANY_ID, PCI_ANY_ID, },
11297 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
11298 PCI_ANY_ID, PCI_ANY_ID, },
11299 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
11300 PCI_ANY_ID, PCI_ANY_ID, },
11301 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
11302 PCI_ANY_ID, PCI_ANY_ID, },
11303 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
11304 PCI_ANY_ID, PCI_ANY_ID, },
11305 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
11306 PCI_ANY_ID, PCI_ANY_ID, },
11307 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
11308 PCI_ANY_ID, PCI_ANY_ID, },
11309 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
11310 PCI_ANY_ID, PCI_ANY_ID, },
11311 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
11312 PCI_ANY_ID, PCI_ANY_ID, },
11313 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
11314 PCI_ANY_ID, PCI_ANY_ID, },
11315 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
11316 PCI_ANY_ID, PCI_ANY_ID, },
11317 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
11318 PCI_ANY_ID, PCI_ANY_ID, },
11319 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
11320 PCI_ANY_ID, PCI_ANY_ID, },
11321 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
11322 PCI_ANY_ID, PCI_ANY_ID, },
11323 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
11324 PCI_ANY_ID, PCI_ANY_ID, },
11325 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
11326 PCI_ANY_ID, PCI_ANY_ID, },
11327 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
11328 PCI_ANY_ID, PCI_ANY_ID, },
11329 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
11330 PCI_ANY_ID, PCI_ANY_ID, },
11331 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
11332 PCI_ANY_ID, PCI_ANY_ID, },
11333 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
11334 PCI_ANY_ID, PCI_ANY_ID, },
11335 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
11336 PCI_ANY_ID, PCI_ANY_ID, },
11337 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
11338 PCI_ANY_ID, PCI_ANY_ID, },
11339 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
11340 PCI_ANY_ID, PCI_ANY_ID, },
11341 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
11342 PCI_ANY_ID, PCI_ANY_ID, },
11343 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
11344 PCI_ANY_ID, PCI_ANY_ID, },
11345 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
11346 PCI_ANY_ID, PCI_ANY_ID, },
11347 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
11348 PCI_ANY_ID, PCI_ANY_ID, },
11349 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
11350 PCI_ANY_ID, PCI_ANY_ID, },
11351 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
11352 PCI_ANY_ID, PCI_ANY_ID, },
11353 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
11354 PCI_ANY_ID, PCI_ANY_ID, },
11355 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
11356 PCI_ANY_ID, PCI_ANY_ID, },
11357 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
11358 PCI_ANY_ID, PCI_ANY_ID, },
11359 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
11360 PCI_ANY_ID, PCI_ANY_ID, },
11364 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
11366 static const struct pci_error_handlers lpfc_err_handler = {
11367 .error_detected = lpfc_io_error_detected,
11368 .slot_reset = lpfc_io_slot_reset,
11369 .resume = lpfc_io_resume,
11372 static struct pci_driver lpfc_driver = {
11373 .name = LPFC_DRIVER_NAME,
11374 .id_table = lpfc_id_table,
11375 .probe = lpfc_pci_probe_one,
11376 .remove = lpfc_pci_remove_one,
11377 .suspend = lpfc_pci_suspend_one,
11378 .resume = lpfc_pci_resume_one,
11379 .err_handler = &lpfc_err_handler,
11382 static const struct file_operations lpfc_mgmt_fop = {
11383 .owner = THIS_MODULE,
11386 static struct miscdevice lpfc_mgmt_dev = {
11387 .minor = MISC_DYNAMIC_MINOR,
11388 .name = "lpfcmgmt",
11389 .fops = &lpfc_mgmt_fop,
11393 * lpfc_init - lpfc module initialization routine
11395 * This routine is to be invoked when the lpfc module is loaded into the
11396 * kernel. The special kernel macro module_init() is used to indicate the
11397 * role of this routine to the kernel as lpfc module entry point.
11401 * -ENOMEM - FC attach transport failed
11402 * all others - failed
11410 printk(LPFC_MODULE_DESC "\n");
11411 printk(LPFC_COPYRIGHT "\n");
11413 error = misc_register(&lpfc_mgmt_dev);
11415 printk(KERN_ERR "Could not register lpfcmgmt device, "
11416 "misc_register returned with status %d", error);
11418 if (lpfc_enable_npiv) {
11419 lpfc_transport_functions.vport_create = lpfc_vport_create;
11420 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
11422 lpfc_transport_template =
11423 fc_attach_transport(&lpfc_transport_functions);
11424 if (lpfc_transport_template == NULL)
11426 if (lpfc_enable_npiv) {
11427 lpfc_vport_transport_template =
11428 fc_attach_transport(&lpfc_vport_transport_functions);
11429 if (lpfc_vport_transport_template == NULL) {
11430 fc_release_transport(lpfc_transport_template);
11435 /* Initialize in case vector mapping is needed */
11436 lpfc_used_cpu = NULL;
11437 lpfc_present_cpu = 0;
11438 for_each_present_cpu(cpu)
11439 lpfc_present_cpu++;
11441 error = pci_register_driver(&lpfc_driver);
11443 fc_release_transport(lpfc_transport_template);
11444 if (lpfc_enable_npiv)
11445 fc_release_transport(lpfc_vport_transport_template);
11452 * lpfc_exit - lpfc module removal routine
11454 * This routine is invoked when the lpfc module is removed from the kernel.
11455 * The special kernel macro module_exit() is used to indicate the role of
11456 * this routine to the kernel as lpfc module exit point.
11461 misc_deregister(&lpfc_mgmt_dev);
11462 pci_unregister_driver(&lpfc_driver);
11463 fc_release_transport(lpfc_transport_template);
11464 if (lpfc_enable_npiv)
11465 fc_release_transport(lpfc_vport_transport_template);
11466 if (_dump_buf_data) {
11467 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
11468 "_dump_buf_data at 0x%p\n",
11469 (1L << _dump_buf_data_order), _dump_buf_data);
11470 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
11473 if (_dump_buf_dif) {
11474 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
11475 "_dump_buf_dif at 0x%p\n",
11476 (1L << _dump_buf_dif_order), _dump_buf_dif);
11477 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
11479 kfree(lpfc_used_cpu);
11482 module_init(lpfc_init);
11483 module_exit(lpfc_exit);
11484 MODULE_LICENSE("GPL");
11485 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
11486 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
11487 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);