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 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
704 !(phba->lmt & LMT_32Gb))) {
705 /* Reset link speed to auto */
706 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
707 "1302 Invalid speed for this board:%d "
708 "Reset link speed to auto.\n",
709 phba->cfg_link_speed);
710 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
712 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
713 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
714 if (phba->sli_rev < LPFC_SLI_REV4)
715 lpfc_set_loopback_flag(phba);
716 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
717 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
718 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
719 "0498 Adapter failed to init, mbxCmd x%x "
720 "INIT_LINK, mbxStatus x%x\n",
721 mb->mbxCommand, mb->mbxStatus);
722 if (phba->sli_rev <= LPFC_SLI_REV3) {
723 /* Clear all interrupt enable conditions */
724 writel(0, phba->HCregaddr);
725 readl(phba->HCregaddr); /* flush */
726 /* Clear all pending interrupts */
727 writel(0xffffffff, phba->HAregaddr);
728 readl(phba->HAregaddr); /* flush */
730 phba->link_state = LPFC_HBA_ERROR;
731 if (rc != MBX_BUSY || flag == MBX_POLL)
732 mempool_free(pmb, phba->mbox_mem_pool);
735 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
736 if (flag == MBX_POLL)
737 mempool_free(pmb, phba->mbox_mem_pool);
743 * lpfc_hba_down_link - this routine downs the FC link
744 * @phba: pointer to lpfc hba data structure.
745 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
747 * This routine will issue the DOWN_LINK mailbox command call.
748 * It is available to other drivers through the lpfc_hba data
749 * structure for use to stop the link.
753 * Any other value - error
756 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
761 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
763 phba->link_state = LPFC_HBA_ERROR;
767 lpfc_printf_log(phba,
769 "0491 Adapter Link is disabled.\n");
770 lpfc_down_link(phba, pmb);
771 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
772 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
773 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
774 lpfc_printf_log(phba,
776 "2522 Adapter failed to issue DOWN_LINK"
777 " mbox command rc 0x%x\n", rc);
779 mempool_free(pmb, phba->mbox_mem_pool);
782 if (flag == MBX_POLL)
783 mempool_free(pmb, phba->mbox_mem_pool);
789 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
790 * @phba: pointer to lpfc HBA data structure.
792 * This routine will do LPFC uninitialization before the HBA is reset when
793 * bringing down the SLI Layer.
797 * Any other value - error.
800 lpfc_hba_down_prep(struct lpfc_hba *phba)
802 struct lpfc_vport **vports;
805 if (phba->sli_rev <= LPFC_SLI_REV3) {
806 /* Disable interrupts */
807 writel(0, phba->HCregaddr);
808 readl(phba->HCregaddr); /* flush */
811 if (phba->pport->load_flag & FC_UNLOADING)
812 lpfc_cleanup_discovery_resources(phba->pport);
814 vports = lpfc_create_vport_work_array(phba);
816 for (i = 0; i <= phba->max_vports &&
817 vports[i] != NULL; i++)
818 lpfc_cleanup_discovery_resources(vports[i]);
819 lpfc_destroy_vport_work_array(phba, vports);
825 * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
826 * rspiocb which got deferred
828 * @phba: pointer to lpfc HBA data structure.
830 * This routine will cleanup completed slow path events after HBA is reset
831 * when bringing down the SLI Layer.
838 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
840 struct lpfc_iocbq *rspiocbq;
841 struct hbq_dmabuf *dmabuf;
842 struct lpfc_cq_event *cq_event;
844 spin_lock_irq(&phba->hbalock);
845 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
846 spin_unlock_irq(&phba->hbalock);
848 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
849 /* Get the response iocb from the head of work queue */
850 spin_lock_irq(&phba->hbalock);
851 list_remove_head(&phba->sli4_hba.sp_queue_event,
852 cq_event, struct lpfc_cq_event, list);
853 spin_unlock_irq(&phba->hbalock);
855 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
856 case CQE_CODE_COMPL_WQE:
857 rspiocbq = container_of(cq_event, struct lpfc_iocbq,
859 lpfc_sli_release_iocbq(phba, rspiocbq);
861 case CQE_CODE_RECEIVE:
862 case CQE_CODE_RECEIVE_V1:
863 dmabuf = container_of(cq_event, struct hbq_dmabuf,
865 lpfc_in_buf_free(phba, &dmabuf->dbuf);
871 * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
872 * @phba: pointer to lpfc HBA data structure.
874 * This routine will cleanup posted ELS buffers after the HBA is reset
875 * when bringing down the SLI Layer.
882 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
884 struct lpfc_sli *psli = &phba->sli;
885 struct lpfc_sli_ring *pring;
886 struct lpfc_dmabuf *mp, *next_mp;
890 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
891 lpfc_sli_hbqbuf_free_all(phba);
893 /* Cleanup preposted buffers on the ELS ring */
894 pring = &psli->ring[LPFC_ELS_RING];
895 spin_lock_irq(&phba->hbalock);
896 list_splice_init(&pring->postbufq, &buflist);
897 spin_unlock_irq(&phba->hbalock);
900 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
903 lpfc_mbuf_free(phba, mp->virt, mp->phys);
907 spin_lock_irq(&phba->hbalock);
908 pring->postbufq_cnt -= count;
909 spin_unlock_irq(&phba->hbalock);
914 * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
915 * @phba: pointer to lpfc HBA data structure.
917 * This routine will cleanup the txcmplq after the HBA is reset when bringing
918 * down the SLI Layer.
924 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
926 struct lpfc_sli *psli = &phba->sli;
927 struct lpfc_sli_ring *pring;
928 LIST_HEAD(completions);
931 for (i = 0; i < psli->num_rings; i++) {
932 pring = &psli->ring[i];
933 if (phba->sli_rev >= LPFC_SLI_REV4)
934 spin_lock_irq(&pring->ring_lock);
936 spin_lock_irq(&phba->hbalock);
937 /* At this point in time the HBA is either reset or DOA. Either
938 * way, nothing should be on txcmplq as it will NEVER complete.
940 list_splice_init(&pring->txcmplq, &completions);
941 pring->txcmplq_cnt = 0;
943 if (phba->sli_rev >= LPFC_SLI_REV4)
944 spin_unlock_irq(&pring->ring_lock);
946 spin_unlock_irq(&phba->hbalock);
948 /* Cancel all the IOCBs from the completions list */
949 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
951 lpfc_sli_abort_iocb_ring(phba, pring);
956 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
958 * @phba: pointer to lpfc HBA data structure.
960 * This routine will do uninitialization after the HBA is reset when bring
961 * down the SLI Layer.
965 * Any other value - error.
968 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
970 lpfc_hba_free_post_buf(phba);
971 lpfc_hba_clean_txcmplq(phba);
976 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
977 * @phba: pointer to lpfc HBA data structure.
979 * This routine will do uninitialization after the HBA is reset when bring
980 * down the SLI Layer.
984 * Any other value - error.
987 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
989 struct lpfc_scsi_buf *psb, *psb_next;
991 unsigned long iflag = 0;
992 struct lpfc_sglq *sglq_entry = NULL;
993 struct lpfc_sli *psli = &phba->sli;
994 struct lpfc_sli_ring *pring;
996 lpfc_hba_free_post_buf(phba);
997 lpfc_hba_clean_txcmplq(phba);
998 pring = &psli->ring[LPFC_ELS_RING];
1000 /* At this point in time the HBA is either reset or DOA. Either
1001 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1002 * on the lpfc_sgl_list so that it can either be freed if the
1003 * driver is unloading or reposted if the driver is restarting
1006 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
1008 /* abts_sgl_list_lock required because worker thread uses this
1011 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
1012 list_for_each_entry(sglq_entry,
1013 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1014 sglq_entry->state = SGL_FREED;
1016 spin_lock(&pring->ring_lock);
1017 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1018 &phba->sli4_hba.lpfc_sgl_list);
1019 spin_unlock(&pring->ring_lock);
1020 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
1021 /* abts_scsi_buf_list_lock required because worker thread uses this
1024 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1025 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1027 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1028 spin_unlock_irq(&phba->hbalock);
1030 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1032 psb->status = IOSTAT_SUCCESS;
1034 spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1035 list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1036 spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1038 lpfc_sli4_free_sp_events(phba);
1043 * lpfc_hba_down_post - Wrapper func for hba down post routine
1044 * @phba: pointer to lpfc HBA data structure.
1046 * This routine wraps the actual SLI3 or SLI4 routine for performing
1047 * uninitialization after the HBA is reset when bring down the SLI Layer.
1051 * Any other value - error.
1054 lpfc_hba_down_post(struct lpfc_hba *phba)
1056 return (*phba->lpfc_hba_down_post)(phba);
1060 * lpfc_hb_timeout - The HBA-timer timeout handler
1061 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1063 * This is the HBA-timer timeout handler registered to the lpfc driver. When
1064 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1065 * work-port-events bitmap and the worker thread is notified. This timeout
1066 * event will be used by the worker thread to invoke the actual timeout
1067 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1068 * be performed in the timeout handler and the HBA timeout event bit shall
1069 * be cleared by the worker thread after it has taken the event bitmap out.
1072 lpfc_hb_timeout(unsigned long ptr)
1074 struct lpfc_hba *phba;
1075 uint32_t tmo_posted;
1076 unsigned long iflag;
1078 phba = (struct lpfc_hba *)ptr;
1080 /* Check for heart beat timeout conditions */
1081 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1082 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1084 phba->pport->work_port_events |= WORKER_HB_TMO;
1085 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1087 /* Tell the worker thread there is work to do */
1089 lpfc_worker_wake_up(phba);
1094 * lpfc_rrq_timeout - The RRQ-timer timeout handler
1095 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1097 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1098 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1099 * work-port-events bitmap and the worker thread is notified. This timeout
1100 * event will be used by the worker thread to invoke the actual timeout
1101 * handler routine, lpfc_rrq_handler. Any periodical operations will
1102 * be performed in the timeout handler and the RRQ timeout event bit shall
1103 * be cleared by the worker thread after it has taken the event bitmap out.
1106 lpfc_rrq_timeout(unsigned long ptr)
1108 struct lpfc_hba *phba;
1109 unsigned long iflag;
1111 phba = (struct lpfc_hba *)ptr;
1112 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1113 if (!(phba->pport->load_flag & FC_UNLOADING))
1114 phba->hba_flag |= HBA_RRQ_ACTIVE;
1116 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1117 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1119 if (!(phba->pport->load_flag & FC_UNLOADING))
1120 lpfc_worker_wake_up(phba);
1124 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1125 * @phba: pointer to lpfc hba data structure.
1126 * @pmboxq: pointer to the driver internal queue element for mailbox command.
1128 * This is the callback function to the lpfc heart-beat mailbox command.
1129 * If configured, the lpfc driver issues the heart-beat mailbox command to
1130 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1131 * heart-beat mailbox command is issued, the driver shall set up heart-beat
1132 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1133 * heart-beat outstanding state. Once the mailbox command comes back and
1134 * no error conditions detected, the heart-beat mailbox command timer is
1135 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1136 * state is cleared for the next heart-beat. If the timer expired with the
1137 * heart-beat outstanding state set, the driver will put the HBA offline.
1140 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1142 unsigned long drvr_flag;
1144 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1145 phba->hb_outstanding = 0;
1146 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1148 /* Check and reset heart-beat timer is necessary */
1149 mempool_free(pmboxq, phba->mbox_mem_pool);
1150 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1151 !(phba->link_state == LPFC_HBA_ERROR) &&
1152 !(phba->pport->load_flag & FC_UNLOADING))
1153 mod_timer(&phba->hb_tmofunc,
1155 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1160 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1161 * @phba: pointer to lpfc hba data structure.
1163 * This is the actual HBA-timer timeout handler to be invoked by the worker
1164 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1165 * handler performs any periodic operations needed for the device. If such
1166 * periodic event has already been attended to either in the interrupt handler
1167 * or by processing slow-ring or fast-ring events within the HBA-timer
1168 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1169 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1170 * is configured and there is no heart-beat mailbox command outstanding, a
1171 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1172 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1176 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1178 struct lpfc_vport **vports;
1179 LPFC_MBOXQ_t *pmboxq;
1180 struct lpfc_dmabuf *buf_ptr;
1182 struct lpfc_sli *psli = &phba->sli;
1183 LIST_HEAD(completions);
1185 vports = lpfc_create_vport_work_array(phba);
1187 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1188 lpfc_rcv_seq_check_edtov(vports[i]);
1189 lpfc_fdmi_num_disc_check(vports[i]);
1191 lpfc_destroy_vport_work_array(phba, vports);
1193 if ((phba->link_state == LPFC_HBA_ERROR) ||
1194 (phba->pport->load_flag & FC_UNLOADING) ||
1195 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1198 spin_lock_irq(&phba->pport->work_port_lock);
1200 if (time_after(phba->last_completion_time +
1201 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1203 spin_unlock_irq(&phba->pport->work_port_lock);
1204 if (!phba->hb_outstanding)
1205 mod_timer(&phba->hb_tmofunc,
1207 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1209 mod_timer(&phba->hb_tmofunc,
1211 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1214 spin_unlock_irq(&phba->pport->work_port_lock);
1216 if (phba->elsbuf_cnt &&
1217 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1218 spin_lock_irq(&phba->hbalock);
1219 list_splice_init(&phba->elsbuf, &completions);
1220 phba->elsbuf_cnt = 0;
1221 phba->elsbuf_prev_cnt = 0;
1222 spin_unlock_irq(&phba->hbalock);
1224 while (!list_empty(&completions)) {
1225 list_remove_head(&completions, buf_ptr,
1226 struct lpfc_dmabuf, list);
1227 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1231 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1233 /* If there is no heart beat outstanding, issue a heartbeat command */
1234 if (phba->cfg_enable_hba_heartbeat) {
1235 if (!phba->hb_outstanding) {
1236 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1237 (list_empty(&psli->mboxq))) {
1238 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1241 mod_timer(&phba->hb_tmofunc,
1243 msecs_to_jiffies(1000 *
1244 LPFC_HB_MBOX_INTERVAL));
1248 lpfc_heart_beat(phba, pmboxq);
1249 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1250 pmboxq->vport = phba->pport;
1251 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1254 if (retval != MBX_BUSY &&
1255 retval != MBX_SUCCESS) {
1256 mempool_free(pmboxq,
1257 phba->mbox_mem_pool);
1258 mod_timer(&phba->hb_tmofunc,
1260 msecs_to_jiffies(1000 *
1261 LPFC_HB_MBOX_INTERVAL));
1264 phba->skipped_hb = 0;
1265 phba->hb_outstanding = 1;
1266 } else if (time_before_eq(phba->last_completion_time,
1267 phba->skipped_hb)) {
1268 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1269 "2857 Last completion time not "
1270 " updated in %d ms\n",
1271 jiffies_to_msecs(jiffies
1272 - phba->last_completion_time));
1274 phba->skipped_hb = jiffies;
1276 mod_timer(&phba->hb_tmofunc,
1278 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1282 * If heart beat timeout called with hb_outstanding set
1283 * we need to give the hb mailbox cmd a chance to
1286 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1287 "0459 Adapter heartbeat still out"
1288 "standing:last compl time was %d ms.\n",
1289 jiffies_to_msecs(jiffies
1290 - phba->last_completion_time));
1291 mod_timer(&phba->hb_tmofunc,
1293 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1296 mod_timer(&phba->hb_tmofunc,
1298 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1303 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1304 * @phba: pointer to lpfc hba data structure.
1306 * This routine is called to bring the HBA offline when HBA hardware error
1307 * other than Port Error 6 has been detected.
1310 lpfc_offline_eratt(struct lpfc_hba *phba)
1312 struct lpfc_sli *psli = &phba->sli;
1314 spin_lock_irq(&phba->hbalock);
1315 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1316 spin_unlock_irq(&phba->hbalock);
1317 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1320 lpfc_reset_barrier(phba);
1321 spin_lock_irq(&phba->hbalock);
1322 lpfc_sli_brdreset(phba);
1323 spin_unlock_irq(&phba->hbalock);
1324 lpfc_hba_down_post(phba);
1325 lpfc_sli_brdready(phba, HS_MBRDY);
1326 lpfc_unblock_mgmt_io(phba);
1327 phba->link_state = LPFC_HBA_ERROR;
1332 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1333 * @phba: pointer to lpfc hba data structure.
1335 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1336 * other than Port Error 6 has been detected.
1339 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1341 spin_lock_irq(&phba->hbalock);
1342 phba->link_state = LPFC_HBA_ERROR;
1343 spin_unlock_irq(&phba->hbalock);
1345 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1347 lpfc_hba_down_post(phba);
1348 lpfc_unblock_mgmt_io(phba);
1352 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1353 * @phba: pointer to lpfc hba data structure.
1355 * This routine is invoked to handle the deferred HBA hardware error
1356 * conditions. This type of error is indicated by HBA by setting ER1
1357 * and another ER bit in the host status register. The driver will
1358 * wait until the ER1 bit clears before handling the error condition.
1361 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1363 uint32_t old_host_status = phba->work_hs;
1364 struct lpfc_sli *psli = &phba->sli;
1366 /* If the pci channel is offline, ignore possible errors,
1367 * since we cannot communicate with the pci card anyway.
1369 if (pci_channel_offline(phba->pcidev)) {
1370 spin_lock_irq(&phba->hbalock);
1371 phba->hba_flag &= ~DEFER_ERATT;
1372 spin_unlock_irq(&phba->hbalock);
1376 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1377 "0479 Deferred Adapter Hardware Error "
1378 "Data: x%x x%x x%x\n",
1380 phba->work_status[0], phba->work_status[1]);
1382 spin_lock_irq(&phba->hbalock);
1383 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1384 spin_unlock_irq(&phba->hbalock);
1388 * Firmware stops when it triggred erratt. That could cause the I/Os
1389 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1390 * SCSI layer retry it after re-establishing link.
1392 lpfc_sli_abort_fcp_rings(phba);
1395 * There was a firmware error. Take the hba offline and then
1396 * attempt to restart it.
1398 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1401 /* Wait for the ER1 bit to clear.*/
1402 while (phba->work_hs & HS_FFER1) {
1404 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1405 phba->work_hs = UNPLUG_ERR ;
1408 /* If driver is unloading let the worker thread continue */
1409 if (phba->pport->load_flag & FC_UNLOADING) {
1416 * This is to ptrotect against a race condition in which
1417 * first write to the host attention register clear the
1418 * host status register.
1420 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1421 phba->work_hs = old_host_status & ~HS_FFER1;
1423 spin_lock_irq(&phba->hbalock);
1424 phba->hba_flag &= ~DEFER_ERATT;
1425 spin_unlock_irq(&phba->hbalock);
1426 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1427 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1431 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1433 struct lpfc_board_event_header board_event;
1434 struct Scsi_Host *shost;
1436 board_event.event_type = FC_REG_BOARD_EVENT;
1437 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1438 shost = lpfc_shost_from_vport(phba->pport);
1439 fc_host_post_vendor_event(shost, fc_get_event_number(),
1440 sizeof(board_event),
1441 (char *) &board_event,
1446 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1447 * @phba: pointer to lpfc hba data structure.
1449 * This routine is invoked to handle the following HBA hardware error
1451 * 1 - HBA error attention interrupt
1452 * 2 - DMA ring index out of range
1453 * 3 - Mailbox command came back as unknown
1456 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1458 struct lpfc_vport *vport = phba->pport;
1459 struct lpfc_sli *psli = &phba->sli;
1460 uint32_t event_data;
1461 unsigned long temperature;
1462 struct temp_event temp_event_data;
1463 struct Scsi_Host *shost;
1465 /* If the pci channel is offline, ignore possible errors,
1466 * since we cannot communicate with the pci card anyway.
1468 if (pci_channel_offline(phba->pcidev)) {
1469 spin_lock_irq(&phba->hbalock);
1470 phba->hba_flag &= ~DEFER_ERATT;
1471 spin_unlock_irq(&phba->hbalock);
1475 /* If resets are disabled then leave the HBA alone and return */
1476 if (!phba->cfg_enable_hba_reset)
1479 /* Send an internal error event to mgmt application */
1480 lpfc_board_errevt_to_mgmt(phba);
1482 if (phba->hba_flag & DEFER_ERATT)
1483 lpfc_handle_deferred_eratt(phba);
1485 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1486 if (phba->work_hs & HS_FFER6)
1487 /* Re-establishing Link */
1488 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1489 "1301 Re-establishing Link "
1490 "Data: x%x x%x x%x\n",
1491 phba->work_hs, phba->work_status[0],
1492 phba->work_status[1]);
1493 if (phba->work_hs & HS_FFER8)
1494 /* Device Zeroization */
1495 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1496 "2861 Host Authentication device "
1497 "zeroization Data:x%x x%x x%x\n",
1498 phba->work_hs, phba->work_status[0],
1499 phba->work_status[1]);
1501 spin_lock_irq(&phba->hbalock);
1502 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1503 spin_unlock_irq(&phba->hbalock);
1506 * Firmware stops when it triggled erratt with HS_FFER6.
1507 * That could cause the I/Os dropped by the firmware.
1508 * Error iocb (I/O) on txcmplq and let the SCSI layer
1509 * retry it after re-establishing link.
1511 lpfc_sli_abort_fcp_rings(phba);
1514 * There was a firmware error. Take the hba offline and then
1515 * attempt to restart it.
1517 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1519 lpfc_sli_brdrestart(phba);
1520 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1521 lpfc_unblock_mgmt_io(phba);
1524 lpfc_unblock_mgmt_io(phba);
1525 } else if (phba->work_hs & HS_CRIT_TEMP) {
1526 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1527 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1528 temp_event_data.event_code = LPFC_CRIT_TEMP;
1529 temp_event_data.data = (uint32_t)temperature;
1531 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1532 "0406 Adapter maximum temperature exceeded "
1533 "(%ld), taking this port offline "
1534 "Data: x%x x%x x%x\n",
1535 temperature, phba->work_hs,
1536 phba->work_status[0], phba->work_status[1]);
1538 shost = lpfc_shost_from_vport(phba->pport);
1539 fc_host_post_vendor_event(shost, fc_get_event_number(),
1540 sizeof(temp_event_data),
1541 (char *) &temp_event_data,
1542 SCSI_NL_VID_TYPE_PCI
1543 | PCI_VENDOR_ID_EMULEX);
1545 spin_lock_irq(&phba->hbalock);
1546 phba->over_temp_state = HBA_OVER_TEMP;
1547 spin_unlock_irq(&phba->hbalock);
1548 lpfc_offline_eratt(phba);
1551 /* The if clause above forces this code path when the status
1552 * failure is a value other than FFER6. Do not call the offline
1553 * twice. This is the adapter hardware error path.
1555 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1556 "0457 Adapter Hardware Error "
1557 "Data: x%x x%x x%x\n",
1559 phba->work_status[0], phba->work_status[1]);
1561 event_data = FC_REG_DUMP_EVENT;
1562 shost = lpfc_shost_from_vport(vport);
1563 fc_host_post_vendor_event(shost, fc_get_event_number(),
1564 sizeof(event_data), (char *) &event_data,
1565 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1567 lpfc_offline_eratt(phba);
1573 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1574 * @phba: pointer to lpfc hba data structure.
1575 * @mbx_action: flag for mailbox shutdown action.
1577 * This routine is invoked to perform an SLI4 port PCI function reset in
1578 * response to port status register polling attention. It waits for port
1579 * status register (ERR, RDY, RN) bits before proceeding with function reset.
1580 * During this process, interrupt vectors are freed and later requested
1581 * for handling possible port resource change.
1584 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1591 * On error status condition, driver need to wait for port
1592 * ready before performing reset.
1594 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1596 /* need reset: attempt for port recovery */
1598 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1599 "2887 Reset Needed: Attempting Port "
1601 lpfc_offline_prep(phba, mbx_action);
1603 /* release interrupt for possible resource change */
1604 lpfc_sli4_disable_intr(phba);
1605 lpfc_sli_brdrestart(phba);
1606 /* request and enable interrupt */
1607 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1608 if (intr_mode == LPFC_INTR_ERROR) {
1609 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1610 "3175 Failed to enable interrupt\n");
1613 phba->intr_mode = intr_mode;
1615 rc = lpfc_online(phba);
1617 lpfc_unblock_mgmt_io(phba);
1623 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1624 * @phba: pointer to lpfc hba data structure.
1626 * This routine is invoked to handle the SLI4 HBA hardware error attention
1630 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1632 struct lpfc_vport *vport = phba->pport;
1633 uint32_t event_data;
1634 struct Scsi_Host *shost;
1636 struct lpfc_register portstat_reg = {0};
1637 uint32_t reg_err1, reg_err2;
1638 uint32_t uerrlo_reg, uemasklo_reg;
1639 uint32_t pci_rd_rc1, pci_rd_rc2;
1640 bool en_rn_msg = true;
1641 struct temp_event temp_event_data;
1644 /* If the pci channel is offline, ignore possible errors, since
1645 * we cannot communicate with the pci card anyway.
1647 if (pci_channel_offline(phba->pcidev))
1650 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1652 case LPFC_SLI_INTF_IF_TYPE_0:
1653 pci_rd_rc1 = lpfc_readl(
1654 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1656 pci_rd_rc2 = lpfc_readl(
1657 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1659 /* consider PCI bus read error as pci_channel_offline */
1660 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1662 lpfc_sli4_offline_eratt(phba);
1665 case LPFC_SLI_INTF_IF_TYPE_2:
1666 pci_rd_rc1 = lpfc_readl(
1667 phba->sli4_hba.u.if_type2.STATUSregaddr,
1668 &portstat_reg.word0);
1669 /* consider PCI bus read error as pci_channel_offline */
1670 if (pci_rd_rc1 == -EIO) {
1671 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1672 "3151 PCI bus read access failure: x%x\n",
1673 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1676 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1677 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1678 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1679 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1680 "2889 Port Overtemperature event, "
1681 "taking port offline Data: x%x x%x\n",
1682 reg_err1, reg_err2);
1684 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1685 temp_event_data.event_code = LPFC_CRIT_TEMP;
1686 temp_event_data.data = 0xFFFFFFFF;
1688 shost = lpfc_shost_from_vport(phba->pport);
1689 fc_host_post_vendor_event(shost, fc_get_event_number(),
1690 sizeof(temp_event_data),
1691 (char *)&temp_event_data,
1692 SCSI_NL_VID_TYPE_PCI
1693 | PCI_VENDOR_ID_EMULEX);
1695 spin_lock_irq(&phba->hbalock);
1696 phba->over_temp_state = HBA_OVER_TEMP;
1697 spin_unlock_irq(&phba->hbalock);
1698 lpfc_sli4_offline_eratt(phba);
1701 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1702 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1703 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1704 "3143 Port Down: Firmware Update "
1707 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1708 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1709 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1710 "3144 Port Down: Debug Dump\n");
1711 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1712 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1713 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1714 "3145 Port Down: Provisioning\n");
1716 /* If resets are disabled then leave the HBA alone and return */
1717 if (!phba->cfg_enable_hba_reset)
1720 /* Check port status register for function reset */
1721 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1724 /* don't report event on forced debug dump */
1725 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1726 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1731 /* fall through for not able to recover */
1732 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1733 "3152 Unrecoverable error, bring the port "
1735 lpfc_sli4_offline_eratt(phba);
1737 case LPFC_SLI_INTF_IF_TYPE_1:
1741 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1742 "3123 Report dump event to upper layer\n");
1743 /* Send an internal error event to mgmt application */
1744 lpfc_board_errevt_to_mgmt(phba);
1746 event_data = FC_REG_DUMP_EVENT;
1747 shost = lpfc_shost_from_vport(vport);
1748 fc_host_post_vendor_event(shost, fc_get_event_number(),
1749 sizeof(event_data), (char *) &event_data,
1750 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1754 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1755 * @phba: pointer to lpfc HBA data structure.
1757 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1758 * routine from the API jump table function pointer from the lpfc_hba struct.
1762 * Any other value - error.
1765 lpfc_handle_eratt(struct lpfc_hba *phba)
1767 (*phba->lpfc_handle_eratt)(phba);
1771 * lpfc_handle_latt - The HBA link event handler
1772 * @phba: pointer to lpfc hba data structure.
1774 * This routine is invoked from the worker thread to handle a HBA host
1775 * attention link event.
1778 lpfc_handle_latt(struct lpfc_hba *phba)
1780 struct lpfc_vport *vport = phba->pport;
1781 struct lpfc_sli *psli = &phba->sli;
1783 volatile uint32_t control;
1784 struct lpfc_dmabuf *mp;
1787 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1790 goto lpfc_handle_latt_err_exit;
1793 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1796 goto lpfc_handle_latt_free_pmb;
1799 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1802 goto lpfc_handle_latt_free_mp;
1805 /* Cleanup any outstanding ELS commands */
1806 lpfc_els_flush_all_cmd(phba);
1808 psli->slistat.link_event++;
1809 lpfc_read_topology(phba, pmb, mp);
1810 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1812 /* Block ELS IOCBs until we have processed this mbox command */
1813 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1814 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1815 if (rc == MBX_NOT_FINISHED) {
1817 goto lpfc_handle_latt_free_mbuf;
1820 /* Clear Link Attention in HA REG */
1821 spin_lock_irq(&phba->hbalock);
1822 writel(HA_LATT, phba->HAregaddr);
1823 readl(phba->HAregaddr); /* flush */
1824 spin_unlock_irq(&phba->hbalock);
1828 lpfc_handle_latt_free_mbuf:
1829 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1830 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1831 lpfc_handle_latt_free_mp:
1833 lpfc_handle_latt_free_pmb:
1834 mempool_free(pmb, phba->mbox_mem_pool);
1835 lpfc_handle_latt_err_exit:
1836 /* Enable Link attention interrupts */
1837 spin_lock_irq(&phba->hbalock);
1838 psli->sli_flag |= LPFC_PROCESS_LA;
1839 control = readl(phba->HCregaddr);
1840 control |= HC_LAINT_ENA;
1841 writel(control, phba->HCregaddr);
1842 readl(phba->HCregaddr); /* flush */
1844 /* Clear Link Attention in HA REG */
1845 writel(HA_LATT, phba->HAregaddr);
1846 readl(phba->HAregaddr); /* flush */
1847 spin_unlock_irq(&phba->hbalock);
1848 lpfc_linkdown(phba);
1849 phba->link_state = LPFC_HBA_ERROR;
1851 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1852 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1858 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1859 * @phba: pointer to lpfc hba data structure.
1860 * @vpd: pointer to the vital product data.
1861 * @len: length of the vital product data in bytes.
1863 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1864 * an array of characters. In this routine, the ModelName, ProgramType, and
1865 * ModelDesc, etc. fields of the phba data structure will be populated.
1868 * 0 - pointer to the VPD passed in is NULL
1872 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1874 uint8_t lenlo, lenhi;
1884 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1885 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1886 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1888 while (!finished && (index < (len - 4))) {
1889 switch (vpd[index]) {
1897 i = ((((unsigned short)lenhi) << 8) + lenlo);
1906 Length = ((((unsigned short)lenhi) << 8) + lenlo);
1907 if (Length > len - index)
1908 Length = len - index;
1909 while (Length > 0) {
1910 /* Look for Serial Number */
1911 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1918 phba->SerialNumber[j++] = vpd[index++];
1922 phba->SerialNumber[j] = 0;
1925 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1926 phba->vpd_flag |= VPD_MODEL_DESC;
1933 phba->ModelDesc[j++] = vpd[index++];
1937 phba->ModelDesc[j] = 0;
1940 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1941 phba->vpd_flag |= VPD_MODEL_NAME;
1948 phba->ModelName[j++] = vpd[index++];
1952 phba->ModelName[j] = 0;
1955 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1956 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1963 phba->ProgramType[j++] = vpd[index++];
1967 phba->ProgramType[j] = 0;
1970 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1971 phba->vpd_flag |= VPD_PORT;
1978 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1979 (phba->sli4_hba.pport_name_sta ==
1980 LPFC_SLI4_PPNAME_GET)) {
1984 phba->Port[j++] = vpd[index++];
1988 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1989 (phba->sli4_hba.pport_name_sta ==
1990 LPFC_SLI4_PPNAME_NON))
2017 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2018 * @phba: pointer to lpfc hba data structure.
2019 * @mdp: pointer to the data structure to hold the derived model name.
2020 * @descp: pointer to the data structure to hold the derived description.
2022 * This routine retrieves HBA's description based on its registered PCI device
2023 * ID. The @descp passed into this function points to an array of 256 chars. It
2024 * shall be returned with the model name, maximum speed, and the host bus type.
2025 * The @mdp passed into this function points to an array of 80 chars. When the
2026 * function returns, the @mdp will be filled with the model name.
2029 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2032 uint16_t dev_id = phba->pcidev->device;
2035 int oneConnect = 0; /* default is not a oneConnect */
2040 } m = {"<Unknown>", "", ""};
2042 if (mdp && mdp[0] != '\0'
2043 && descp && descp[0] != '\0')
2046 if (phba->lmt & LMT_32Gb)
2048 else if (phba->lmt & LMT_16Gb)
2050 else if (phba->lmt & LMT_10Gb)
2052 else if (phba->lmt & LMT_8Gb)
2054 else if (phba->lmt & LMT_4Gb)
2056 else if (phba->lmt & LMT_2Gb)
2058 else if (phba->lmt & LMT_1Gb)
2066 case PCI_DEVICE_ID_FIREFLY:
2067 m = (typeof(m)){"LP6000", "PCI",
2068 "Obsolete, Unsupported Fibre Channel Adapter"};
2070 case PCI_DEVICE_ID_SUPERFLY:
2071 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2072 m = (typeof(m)){"LP7000", "PCI", ""};
2074 m = (typeof(m)){"LP7000E", "PCI", ""};
2075 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2077 case PCI_DEVICE_ID_DRAGONFLY:
2078 m = (typeof(m)){"LP8000", "PCI",
2079 "Obsolete, Unsupported Fibre Channel Adapter"};
2081 case PCI_DEVICE_ID_CENTAUR:
2082 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2083 m = (typeof(m)){"LP9002", "PCI", ""};
2085 m = (typeof(m)){"LP9000", "PCI", ""};
2086 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2088 case PCI_DEVICE_ID_RFLY:
2089 m = (typeof(m)){"LP952", "PCI",
2090 "Obsolete, Unsupported Fibre Channel Adapter"};
2092 case PCI_DEVICE_ID_PEGASUS:
2093 m = (typeof(m)){"LP9802", "PCI-X",
2094 "Obsolete, Unsupported Fibre Channel Adapter"};
2096 case PCI_DEVICE_ID_THOR:
2097 m = (typeof(m)){"LP10000", "PCI-X",
2098 "Obsolete, Unsupported Fibre Channel Adapter"};
2100 case PCI_DEVICE_ID_VIPER:
2101 m = (typeof(m)){"LPX1000", "PCI-X",
2102 "Obsolete, Unsupported Fibre Channel Adapter"};
2104 case PCI_DEVICE_ID_PFLY:
2105 m = (typeof(m)){"LP982", "PCI-X",
2106 "Obsolete, Unsupported Fibre Channel Adapter"};
2108 case PCI_DEVICE_ID_TFLY:
2109 m = (typeof(m)){"LP1050", "PCI-X",
2110 "Obsolete, Unsupported Fibre Channel Adapter"};
2112 case PCI_DEVICE_ID_HELIOS:
2113 m = (typeof(m)){"LP11000", "PCI-X2",
2114 "Obsolete, Unsupported Fibre Channel Adapter"};
2116 case PCI_DEVICE_ID_HELIOS_SCSP:
2117 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2118 "Obsolete, Unsupported Fibre Channel Adapter"};
2120 case PCI_DEVICE_ID_HELIOS_DCSP:
2121 m = (typeof(m)){"LP11002-SP", "PCI-X2",
2122 "Obsolete, Unsupported Fibre Channel Adapter"};
2124 case PCI_DEVICE_ID_NEPTUNE:
2125 m = (typeof(m)){"LPe1000", "PCIe",
2126 "Obsolete, Unsupported Fibre Channel Adapter"};
2128 case PCI_DEVICE_ID_NEPTUNE_SCSP:
2129 m = (typeof(m)){"LPe1000-SP", "PCIe",
2130 "Obsolete, Unsupported Fibre Channel Adapter"};
2132 case PCI_DEVICE_ID_NEPTUNE_DCSP:
2133 m = (typeof(m)){"LPe1002-SP", "PCIe",
2134 "Obsolete, Unsupported Fibre Channel Adapter"};
2136 case PCI_DEVICE_ID_BMID:
2137 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2139 case PCI_DEVICE_ID_BSMB:
2140 m = (typeof(m)){"LP111", "PCI-X2",
2141 "Obsolete, Unsupported Fibre Channel Adapter"};
2143 case PCI_DEVICE_ID_ZEPHYR:
2144 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2146 case PCI_DEVICE_ID_ZEPHYR_SCSP:
2147 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2149 case PCI_DEVICE_ID_ZEPHYR_DCSP:
2150 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2153 case PCI_DEVICE_ID_ZMID:
2154 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2156 case PCI_DEVICE_ID_ZSMB:
2157 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2159 case PCI_DEVICE_ID_LP101:
2160 m = (typeof(m)){"LP101", "PCI-X",
2161 "Obsolete, Unsupported Fibre Channel Adapter"};
2163 case PCI_DEVICE_ID_LP10000S:
2164 m = (typeof(m)){"LP10000-S", "PCI",
2165 "Obsolete, Unsupported Fibre Channel Adapter"};
2167 case PCI_DEVICE_ID_LP11000S:
2168 m = (typeof(m)){"LP11000-S", "PCI-X2",
2169 "Obsolete, Unsupported Fibre Channel Adapter"};
2171 case PCI_DEVICE_ID_LPE11000S:
2172 m = (typeof(m)){"LPe11000-S", "PCIe",
2173 "Obsolete, Unsupported Fibre Channel Adapter"};
2175 case PCI_DEVICE_ID_SAT:
2176 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2178 case PCI_DEVICE_ID_SAT_MID:
2179 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2181 case PCI_DEVICE_ID_SAT_SMB:
2182 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2184 case PCI_DEVICE_ID_SAT_DCSP:
2185 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2187 case PCI_DEVICE_ID_SAT_SCSP:
2188 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2190 case PCI_DEVICE_ID_SAT_S:
2191 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2193 case PCI_DEVICE_ID_HORNET:
2194 m = (typeof(m)){"LP21000", "PCIe",
2195 "Obsolete, Unsupported FCoE Adapter"};
2198 case PCI_DEVICE_ID_PROTEUS_VF:
2199 m = (typeof(m)){"LPev12000", "PCIe IOV",
2200 "Obsolete, Unsupported Fibre Channel Adapter"};
2202 case PCI_DEVICE_ID_PROTEUS_PF:
2203 m = (typeof(m)){"LPev12000", "PCIe IOV",
2204 "Obsolete, Unsupported Fibre Channel Adapter"};
2206 case PCI_DEVICE_ID_PROTEUS_S:
2207 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2208 "Obsolete, Unsupported Fibre Channel Adapter"};
2210 case PCI_DEVICE_ID_TIGERSHARK:
2212 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2214 case PCI_DEVICE_ID_TOMCAT:
2216 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2218 case PCI_DEVICE_ID_FALCON:
2219 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2220 "EmulexSecure Fibre"};
2222 case PCI_DEVICE_ID_BALIUS:
2223 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2224 "Obsolete, Unsupported Fibre Channel Adapter"};
2226 case PCI_DEVICE_ID_LANCER_FC:
2227 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2229 case PCI_DEVICE_ID_LANCER_FC_VF:
2230 m = (typeof(m)){"LPe16000", "PCIe",
2231 "Obsolete, Unsupported Fibre Channel Adapter"};
2233 case PCI_DEVICE_ID_LANCER_FCOE:
2235 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2237 case PCI_DEVICE_ID_LANCER_FCOE_VF:
2239 m = (typeof(m)){"OCe15100", "PCIe",
2240 "Obsolete, Unsupported FCoE"};
2242 case PCI_DEVICE_ID_LANCER_G6_FC:
2243 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2245 case PCI_DEVICE_ID_SKYHAWK:
2246 case PCI_DEVICE_ID_SKYHAWK_VF:
2248 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2251 m = (typeof(m)){"Unknown", "", ""};
2255 if (mdp && mdp[0] == '\0')
2256 snprintf(mdp, 79,"%s", m.name);
2258 * oneConnect hba requires special processing, they are all initiators
2259 * and we put the port number on the end
2261 if (descp && descp[0] == '\0') {
2263 snprintf(descp, 255,
2264 "Emulex OneConnect %s, %s Initiator %s",
2267 else if (max_speed == 0)
2268 snprintf(descp, 255,
2270 m.name, m.bus, m.function);
2272 snprintf(descp, 255,
2273 "Emulex %s %d%s %s %s",
2274 m.name, max_speed, (GE) ? "GE" : "Gb",
2280 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2281 * @phba: pointer to lpfc hba data structure.
2282 * @pring: pointer to a IOCB ring.
2283 * @cnt: the number of IOCBs to be posted to the IOCB ring.
2285 * This routine posts a given number of IOCBs with the associated DMA buffer
2286 * descriptors specified by the cnt argument to the given IOCB ring.
2289 * The number of IOCBs NOT able to be posted to the IOCB ring.
2292 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2295 struct lpfc_iocbq *iocb;
2296 struct lpfc_dmabuf *mp1, *mp2;
2298 cnt += pring->missbufcnt;
2300 /* While there are buffers to post */
2302 /* Allocate buffer for command iocb */
2303 iocb = lpfc_sli_get_iocbq(phba);
2305 pring->missbufcnt = cnt;
2310 /* 2 buffers can be posted per command */
2311 /* Allocate buffer to post */
2312 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2314 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2315 if (!mp1 || !mp1->virt) {
2317 lpfc_sli_release_iocbq(phba, iocb);
2318 pring->missbufcnt = cnt;
2322 INIT_LIST_HEAD(&mp1->list);
2323 /* Allocate buffer to post */
2325 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2327 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2329 if (!mp2 || !mp2->virt) {
2331 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2333 lpfc_sli_release_iocbq(phba, iocb);
2334 pring->missbufcnt = cnt;
2338 INIT_LIST_HEAD(&mp2->list);
2343 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2344 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2345 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2346 icmd->ulpBdeCount = 1;
2349 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2350 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2351 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2353 icmd->ulpBdeCount = 2;
2356 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2359 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2361 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2365 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2369 lpfc_sli_release_iocbq(phba, iocb);
2370 pring->missbufcnt = cnt;
2373 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2375 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2377 pring->missbufcnt = 0;
2382 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2383 * @phba: pointer to lpfc hba data structure.
2385 * This routine posts initial receive IOCB buffers to the ELS ring. The
2386 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2390 * 0 - success (currently always success)
2393 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2395 struct lpfc_sli *psli = &phba->sli;
2397 /* Ring 0, ELS / CT buffers */
2398 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2399 /* Ring 2 - FCP no buffers needed */
2404 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2407 * lpfc_sha_init - Set up initial array of hash table entries
2408 * @HashResultPointer: pointer to an array as hash table.
2410 * This routine sets up the initial values to the array of hash table entries
2414 lpfc_sha_init(uint32_t * HashResultPointer)
2416 HashResultPointer[0] = 0x67452301;
2417 HashResultPointer[1] = 0xEFCDAB89;
2418 HashResultPointer[2] = 0x98BADCFE;
2419 HashResultPointer[3] = 0x10325476;
2420 HashResultPointer[4] = 0xC3D2E1F0;
2424 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2425 * @HashResultPointer: pointer to an initial/result hash table.
2426 * @HashWorkingPointer: pointer to an working hash table.
2428 * This routine iterates an initial hash table pointed by @HashResultPointer
2429 * with the values from the working hash table pointeed by @HashWorkingPointer.
2430 * The results are putting back to the initial hash table, returned through
2431 * the @HashResultPointer as the result hash table.
2434 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2438 uint32_t A, B, C, D, E;
2441 HashWorkingPointer[t] =
2443 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2445 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2446 } while (++t <= 79);
2448 A = HashResultPointer[0];
2449 B = HashResultPointer[1];
2450 C = HashResultPointer[2];
2451 D = HashResultPointer[3];
2452 E = HashResultPointer[4];
2456 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2457 } else if (t < 40) {
2458 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2459 } else if (t < 60) {
2460 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2462 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2464 TEMP += S(5, A) + E + HashWorkingPointer[t];
2470 } while (++t <= 79);
2472 HashResultPointer[0] += A;
2473 HashResultPointer[1] += B;
2474 HashResultPointer[2] += C;
2475 HashResultPointer[3] += D;
2476 HashResultPointer[4] += E;
2481 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2482 * @RandomChallenge: pointer to the entry of host challenge random number array.
2483 * @HashWorking: pointer to the entry of the working hash array.
2485 * This routine calculates the working hash array referred by @HashWorking
2486 * from the challenge random numbers associated with the host, referred by
2487 * @RandomChallenge. The result is put into the entry of the working hash
2488 * array and returned by reference through @HashWorking.
2491 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2493 *HashWorking = (*RandomChallenge ^ *HashWorking);
2497 * lpfc_hba_init - Perform special handling for LC HBA initialization
2498 * @phba: pointer to lpfc hba data structure.
2499 * @hbainit: pointer to an array of unsigned 32-bit integers.
2501 * This routine performs the special handling for LC HBA initialization.
2504 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2507 uint32_t *HashWorking;
2508 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2510 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2514 HashWorking[0] = HashWorking[78] = *pwwnn++;
2515 HashWorking[1] = HashWorking[79] = *pwwnn;
2517 for (t = 0; t < 7; t++)
2518 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2520 lpfc_sha_init(hbainit);
2521 lpfc_sha_iterate(hbainit, HashWorking);
2526 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2527 * @vport: pointer to a virtual N_Port data structure.
2529 * This routine performs the necessary cleanups before deleting the @vport.
2530 * It invokes the discovery state machine to perform necessary state
2531 * transitions and to release the ndlps associated with the @vport. Note,
2532 * the physical port is treated as @vport 0.
2535 lpfc_cleanup(struct lpfc_vport *vport)
2537 struct lpfc_hba *phba = vport->phba;
2538 struct lpfc_nodelist *ndlp, *next_ndlp;
2541 if (phba->link_state > LPFC_LINK_DOWN)
2542 lpfc_port_link_failure(vport);
2544 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2545 if (!NLP_CHK_NODE_ACT(ndlp)) {
2546 ndlp = lpfc_enable_node(vport, ndlp,
2547 NLP_STE_UNUSED_NODE);
2550 spin_lock_irq(&phba->ndlp_lock);
2551 NLP_SET_FREE_REQ(ndlp);
2552 spin_unlock_irq(&phba->ndlp_lock);
2553 /* Trigger the release of the ndlp memory */
2557 spin_lock_irq(&phba->ndlp_lock);
2558 if (NLP_CHK_FREE_REQ(ndlp)) {
2559 /* The ndlp should not be in memory free mode already */
2560 spin_unlock_irq(&phba->ndlp_lock);
2563 /* Indicate request for freeing ndlp memory */
2564 NLP_SET_FREE_REQ(ndlp);
2565 spin_unlock_irq(&phba->ndlp_lock);
2567 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2568 ndlp->nlp_DID == Fabric_DID) {
2569 /* Just free up ndlp with Fabric_DID for vports */
2574 /* take care of nodes in unused state before the state
2575 * machine taking action.
2577 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2582 if (ndlp->nlp_type & NLP_FABRIC)
2583 lpfc_disc_state_machine(vport, ndlp, NULL,
2584 NLP_EVT_DEVICE_RECOVERY);
2586 lpfc_disc_state_machine(vport, ndlp, NULL,
2590 /* At this point, ALL ndlp's should be gone
2591 * because of the previous NLP_EVT_DEVICE_RM.
2592 * Lets wait for this to happen, if needed.
2594 while (!list_empty(&vport->fc_nodes)) {
2596 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2597 "0233 Nodelist not empty\n");
2598 list_for_each_entry_safe(ndlp, next_ndlp,
2599 &vport->fc_nodes, nlp_listp) {
2600 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2602 "0282 did:x%x ndlp:x%p "
2603 "usgmap:x%x refcnt:%d\n",
2604 ndlp->nlp_DID, (void *)ndlp,
2607 &ndlp->kref.refcount));
2612 /* Wait for any activity on ndlps to settle */
2615 lpfc_cleanup_vports_rrqs(vport, NULL);
2619 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2620 * @vport: pointer to a virtual N_Port data structure.
2622 * This routine stops all the timers associated with a @vport. This function
2623 * is invoked before disabling or deleting a @vport. Note that the physical
2624 * port is treated as @vport 0.
2627 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2629 del_timer_sync(&vport->els_tmofunc);
2630 del_timer_sync(&vport->delayed_disc_tmo);
2631 lpfc_can_disctmo(vport);
2636 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2637 * @phba: pointer to lpfc hba data structure.
2639 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2640 * caller of this routine should already hold the host lock.
2643 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2645 /* Clear pending FCF rediscovery wait flag */
2646 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2648 /* Now, try to stop the timer */
2649 del_timer(&phba->fcf.redisc_wait);
2653 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2654 * @phba: pointer to lpfc hba data structure.
2656 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2657 * checks whether the FCF rediscovery wait timer is pending with the host
2658 * lock held before proceeding with disabling the timer and clearing the
2659 * wait timer pendig flag.
2662 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2664 spin_lock_irq(&phba->hbalock);
2665 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2666 /* FCF rediscovery timer already fired or stopped */
2667 spin_unlock_irq(&phba->hbalock);
2670 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2671 /* Clear failover in progress flags */
2672 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2673 spin_unlock_irq(&phba->hbalock);
2677 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2678 * @phba: pointer to lpfc hba data structure.
2680 * This routine stops all the timers associated with a HBA. This function is
2681 * invoked before either putting a HBA offline or unloading the driver.
2684 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2686 lpfc_stop_vport_timers(phba->pport);
2687 del_timer_sync(&phba->sli.mbox_tmo);
2688 del_timer_sync(&phba->fabric_block_timer);
2689 del_timer_sync(&phba->eratt_poll);
2690 del_timer_sync(&phba->hb_tmofunc);
2691 if (phba->sli_rev == LPFC_SLI_REV4) {
2692 del_timer_sync(&phba->rrq_tmr);
2693 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2695 phba->hb_outstanding = 0;
2697 switch (phba->pci_dev_grp) {
2698 case LPFC_PCI_DEV_LP:
2699 /* Stop any LightPulse device specific driver timers */
2700 del_timer_sync(&phba->fcp_poll_timer);
2702 case LPFC_PCI_DEV_OC:
2703 /* Stop any OneConnect device sepcific driver timers */
2704 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2707 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2708 "0297 Invalid device group (x%x)\n",
2716 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2717 * @phba: pointer to lpfc hba data structure.
2719 * This routine marks a HBA's management interface as blocked. Once the HBA's
2720 * management interface is marked as blocked, all the user space access to
2721 * the HBA, whether they are from sysfs interface or libdfc interface will
2722 * all be blocked. The HBA is set to block the management interface when the
2723 * driver prepares the HBA interface for online or offline.
2726 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2728 unsigned long iflag;
2729 uint8_t actcmd = MBX_HEARTBEAT;
2730 unsigned long timeout;
2732 spin_lock_irqsave(&phba->hbalock, iflag);
2733 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2734 spin_unlock_irqrestore(&phba->hbalock, iflag);
2735 if (mbx_action == LPFC_MBX_NO_WAIT)
2737 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2738 spin_lock_irqsave(&phba->hbalock, iflag);
2739 if (phba->sli.mbox_active) {
2740 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2741 /* Determine how long we might wait for the active mailbox
2742 * command to be gracefully completed by firmware.
2744 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2745 phba->sli.mbox_active) * 1000) + jiffies;
2747 spin_unlock_irqrestore(&phba->hbalock, iflag);
2749 /* Wait for the outstnading mailbox command to complete */
2750 while (phba->sli.mbox_active) {
2751 /* Check active mailbox complete status every 2ms */
2753 if (time_after(jiffies, timeout)) {
2754 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2755 "2813 Mgmt IO is Blocked %x "
2756 "- mbox cmd %x still active\n",
2757 phba->sli.sli_flag, actcmd);
2764 * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2765 * @phba: pointer to lpfc hba data structure.
2767 * Allocate RPIs for all active remote nodes. This is needed whenever
2768 * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2769 * is to fixup the temporary rpi assignments.
2772 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2774 struct lpfc_nodelist *ndlp, *next_ndlp;
2775 struct lpfc_vport **vports;
2778 if (phba->sli_rev != LPFC_SLI_REV4)
2781 vports = lpfc_create_vport_work_array(phba);
2782 if (vports != NULL) {
2783 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2784 if (vports[i]->load_flag & FC_UNLOADING)
2787 list_for_each_entry_safe(ndlp, next_ndlp,
2788 &vports[i]->fc_nodes,
2790 if (NLP_CHK_NODE_ACT(ndlp)) {
2792 lpfc_sli4_alloc_rpi(phba);
2793 lpfc_printf_vlog(ndlp->vport, KERN_INFO,
2795 "0009 rpi:%x DID:%x "
2796 "flg:%x map:%x %p\n",
2806 lpfc_destroy_vport_work_array(phba, vports);
2810 * lpfc_online - Initialize and bring a HBA online
2811 * @phba: pointer to lpfc hba data structure.
2813 * This routine initializes the HBA and brings a HBA online. During this
2814 * process, the management interface is blocked to prevent user space access
2815 * to the HBA interfering with the driver initialization.
2822 lpfc_online(struct lpfc_hba *phba)
2824 struct lpfc_vport *vport;
2825 struct lpfc_vport **vports;
2827 bool vpis_cleared = false;
2831 vport = phba->pport;
2833 if (!(vport->fc_flag & FC_OFFLINE_MODE))
2836 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2837 "0458 Bring Adapter online\n");
2839 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2841 if (!lpfc_sli_queue_setup(phba)) {
2842 lpfc_unblock_mgmt_io(phba);
2846 if (phba->sli_rev == LPFC_SLI_REV4) {
2847 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2848 lpfc_unblock_mgmt_io(phba);
2851 spin_lock_irq(&phba->hbalock);
2852 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2853 vpis_cleared = true;
2854 spin_unlock_irq(&phba->hbalock);
2856 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2857 lpfc_unblock_mgmt_io(phba);
2862 vports = lpfc_create_vport_work_array(phba);
2864 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2865 struct Scsi_Host *shost;
2866 shost = lpfc_shost_from_vport(vports[i]);
2867 spin_lock_irq(shost->host_lock);
2868 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2869 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2870 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2871 if (phba->sli_rev == LPFC_SLI_REV4) {
2872 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2873 if ((vpis_cleared) &&
2874 (vports[i]->port_type !=
2875 LPFC_PHYSICAL_PORT))
2878 spin_unlock_irq(shost->host_lock);
2880 lpfc_destroy_vport_work_array(phba, vports);
2882 lpfc_unblock_mgmt_io(phba);
2887 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2888 * @phba: pointer to lpfc hba data structure.
2890 * This routine marks a HBA's management interface as not blocked. Once the
2891 * HBA's management interface is marked as not blocked, all the user space
2892 * access to the HBA, whether they are from sysfs interface or libdfc
2893 * interface will be allowed. The HBA is set to block the management interface
2894 * when the driver prepares the HBA interface for online or offline and then
2895 * set to unblock the management interface afterwards.
2898 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2900 unsigned long iflag;
2902 spin_lock_irqsave(&phba->hbalock, iflag);
2903 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2904 spin_unlock_irqrestore(&phba->hbalock, iflag);
2908 * lpfc_offline_prep - Prepare a HBA to be brought offline
2909 * @phba: pointer to lpfc hba data structure.
2911 * This routine is invoked to prepare a HBA to be brought offline. It performs
2912 * unregistration login to all the nodes on all vports and flushes the mailbox
2913 * queue to make it ready to be brought offline.
2916 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2918 struct lpfc_vport *vport = phba->pport;
2919 struct lpfc_nodelist *ndlp, *next_ndlp;
2920 struct lpfc_vport **vports;
2921 struct Scsi_Host *shost;
2924 if (vport->fc_flag & FC_OFFLINE_MODE)
2927 lpfc_block_mgmt_io(phba, mbx_action);
2929 lpfc_linkdown(phba);
2931 /* Issue an unreg_login to all nodes on all vports */
2932 vports = lpfc_create_vport_work_array(phba);
2933 if (vports != NULL) {
2934 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2935 if (vports[i]->load_flag & FC_UNLOADING)
2937 shost = lpfc_shost_from_vport(vports[i]);
2938 spin_lock_irq(shost->host_lock);
2939 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2940 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2941 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2942 spin_unlock_irq(shost->host_lock);
2944 shost = lpfc_shost_from_vport(vports[i]);
2945 list_for_each_entry_safe(ndlp, next_ndlp,
2946 &vports[i]->fc_nodes,
2948 if (!NLP_CHK_NODE_ACT(ndlp))
2950 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2952 if (ndlp->nlp_type & NLP_FABRIC) {
2953 lpfc_disc_state_machine(vports[i], ndlp,
2954 NULL, NLP_EVT_DEVICE_RECOVERY);
2955 lpfc_disc_state_machine(vports[i], ndlp,
2956 NULL, NLP_EVT_DEVICE_RM);
2958 spin_lock_irq(shost->host_lock);
2959 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2960 spin_unlock_irq(shost->host_lock);
2962 * Whenever an SLI4 port goes offline, free the
2963 * RPI. Get a new RPI when the adapter port
2964 * comes back online.
2966 if (phba->sli_rev == LPFC_SLI_REV4) {
2967 lpfc_printf_vlog(ndlp->vport,
2968 KERN_INFO, LOG_NODE,
2969 "0011 lpfc_offline: "
2971 "usgmap:x%x rpi:%x\n",
2972 ndlp, ndlp->nlp_DID,
2976 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2978 lpfc_unreg_rpi(vports[i], ndlp);
2982 lpfc_destroy_vport_work_array(phba, vports);
2984 lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2988 * lpfc_offline - Bring a HBA offline
2989 * @phba: pointer to lpfc hba data structure.
2991 * This routine actually brings a HBA offline. It stops all the timers
2992 * associated with the HBA, brings down the SLI layer, and eventually
2993 * marks the HBA as in offline state for the upper layer protocol.
2996 lpfc_offline(struct lpfc_hba *phba)
2998 struct Scsi_Host *shost;
2999 struct lpfc_vport **vports;
3002 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3005 /* stop port and all timers associated with this hba */
3006 lpfc_stop_port(phba);
3007 vports = lpfc_create_vport_work_array(phba);
3009 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3010 lpfc_stop_vport_timers(vports[i]);
3011 lpfc_destroy_vport_work_array(phba, vports);
3012 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3013 "0460 Bring Adapter offline\n");
3014 /* Bring down the SLI Layer and cleanup. The HBA is offline
3016 lpfc_sli_hba_down(phba);
3017 spin_lock_irq(&phba->hbalock);
3019 spin_unlock_irq(&phba->hbalock);
3020 vports = lpfc_create_vport_work_array(phba);
3022 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3023 shost = lpfc_shost_from_vport(vports[i]);
3024 spin_lock_irq(shost->host_lock);
3025 vports[i]->work_port_events = 0;
3026 vports[i]->fc_flag |= FC_OFFLINE_MODE;
3027 spin_unlock_irq(shost->host_lock);
3029 lpfc_destroy_vport_work_array(phba, vports);
3033 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3034 * @phba: pointer to lpfc hba data structure.
3036 * This routine is to free all the SCSI buffers and IOCBs from the driver
3037 * list back to kernel. It is called from lpfc_pci_remove_one to free
3038 * the internal resources before the device is removed from the system.
3041 lpfc_scsi_free(struct lpfc_hba *phba)
3043 struct lpfc_scsi_buf *sb, *sb_next;
3044 struct lpfc_iocbq *io, *io_next;
3046 spin_lock_irq(&phba->hbalock);
3048 /* Release all the lpfc_scsi_bufs maintained by this host. */
3050 spin_lock(&phba->scsi_buf_list_put_lock);
3051 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3053 list_del(&sb->list);
3054 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3057 phba->total_scsi_bufs--;
3059 spin_unlock(&phba->scsi_buf_list_put_lock);
3061 spin_lock(&phba->scsi_buf_list_get_lock);
3062 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3064 list_del(&sb->list);
3065 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3068 phba->total_scsi_bufs--;
3070 spin_unlock(&phba->scsi_buf_list_get_lock);
3072 /* Release all the lpfc_iocbq entries maintained by this host. */
3073 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
3074 list_del(&io->list);
3076 phba->total_iocbq_bufs--;
3079 spin_unlock_irq(&phba->hbalock);
3083 * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
3084 * @phba: pointer to lpfc hba data structure.
3086 * This routine first calculates the sizes of the current els and allocated
3087 * scsi sgl lists, and then goes through all sgls to updates the physical
3088 * XRIs assigned due to port function reset. During port initialization, the
3089 * current els and allocated scsi sgl lists are 0s.
3092 * 0 - successful (for now, it always returns 0)
3095 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
3097 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3098 struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
3099 uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
3100 LIST_HEAD(els_sgl_list);
3101 LIST_HEAD(scsi_sgl_list);
3103 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
3106 * update on pci function's els xri-sgl list
3108 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3109 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3110 /* els xri-sgl expanded */
3111 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3112 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3113 "3157 ELS xri-sgl count increased from "
3114 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3116 /* allocate the additional els sgls */
3117 for (i = 0; i < xri_cnt; i++) {
3118 sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3120 if (sglq_entry == NULL) {
3121 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3122 "2562 Failure to allocate an "
3123 "ELS sgl entry:%d\n", i);
3127 sglq_entry->buff_type = GEN_BUFF_TYPE;
3128 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3130 if (sglq_entry->virt == NULL) {
3132 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3133 "2563 Failure to allocate an "
3134 "ELS mbuf:%d\n", i);
3138 sglq_entry->sgl = sglq_entry->virt;
3139 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3140 sglq_entry->state = SGL_FREED;
3141 list_add_tail(&sglq_entry->list, &els_sgl_list);
3143 spin_lock_irq(&phba->hbalock);
3144 spin_lock(&pring->ring_lock);
3145 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3146 spin_unlock(&pring->ring_lock);
3147 spin_unlock_irq(&phba->hbalock);
3148 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3149 /* els xri-sgl shrinked */
3150 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3151 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3152 "3158 ELS xri-sgl count decreased from "
3153 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3155 spin_lock_irq(&phba->hbalock);
3156 spin_lock(&pring->ring_lock);
3157 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
3158 spin_unlock(&pring->ring_lock);
3159 spin_unlock_irq(&phba->hbalock);
3160 /* release extra els sgls from list */
3161 for (i = 0; i < xri_cnt; i++) {
3162 list_remove_head(&els_sgl_list,
3163 sglq_entry, struct lpfc_sglq, list);
3165 lpfc_mbuf_free(phba, sglq_entry->virt,
3170 spin_lock_irq(&phba->hbalock);
3171 spin_lock(&pring->ring_lock);
3172 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3173 spin_unlock(&pring->ring_lock);
3174 spin_unlock_irq(&phba->hbalock);
3176 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3177 "3163 ELS xri-sgl count unchanged: %d\n",
3179 phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3181 /* update xris to els sgls on the list */
3183 sglq_entry_next = NULL;
3184 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3185 &phba->sli4_hba.lpfc_sgl_list, list) {
3186 lxri = lpfc_sli4_next_xritag(phba);
3187 if (lxri == NO_XRI) {
3188 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3189 "2400 Failed to allocate xri for "
3194 sglq_entry->sli4_lxritag = lxri;
3195 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3199 * update on pci function's allocated scsi xri-sgl list
3201 phba->total_scsi_bufs = 0;
3203 /* maximum number of xris available for scsi buffers */
3204 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3207 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3208 "2401 Current allocated SCSI xri-sgl count:%d, "
3209 "maximum SCSI xri count:%d\n",
3210 phba->sli4_hba.scsi_xri_cnt,
3211 phba->sli4_hba.scsi_xri_max);
3213 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3214 spin_lock(&phba->scsi_buf_list_put_lock);
3215 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3216 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3217 spin_unlock(&phba->scsi_buf_list_put_lock);
3218 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3220 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3221 /* max scsi xri shrinked below the allocated scsi buffers */
3222 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3223 phba->sli4_hba.scsi_xri_max;
3224 /* release the extra allocated scsi buffers */
3225 for (i = 0; i < scsi_xri_cnt; i++) {
3226 list_remove_head(&scsi_sgl_list, psb,
3227 struct lpfc_scsi_buf, list);
3229 pci_pool_free(phba->lpfc_scsi_dma_buf_pool,
3230 psb->data, psb->dma_handle);
3234 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3235 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3236 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3239 /* update xris associated to remaining allocated scsi buffers */
3242 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3243 lxri = lpfc_sli4_next_xritag(phba);
3244 if (lxri == NO_XRI) {
3245 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3246 "2560 Failed to allocate xri for "
3251 psb->cur_iocbq.sli4_lxritag = lxri;
3252 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3254 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3255 spin_lock(&phba->scsi_buf_list_put_lock);
3256 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3257 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3258 spin_unlock(&phba->scsi_buf_list_put_lock);
3259 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3264 lpfc_free_els_sgl_list(phba);
3265 lpfc_scsi_free(phba);
3270 * lpfc_create_port - Create an FC port
3271 * @phba: pointer to lpfc hba data structure.
3272 * @instance: a unique integer ID to this FC port.
3273 * @dev: pointer to the device data structure.
3275 * This routine creates a FC port for the upper layer protocol. The FC port
3276 * can be created on top of either a physical port or a virtual port provided
3277 * by the HBA. This routine also allocates a SCSI host data structure (shost)
3278 * and associates the FC port created before adding the shost into the SCSI
3282 * @vport - pointer to the virtual N_Port data structure.
3283 * NULL - port create failed.
3286 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3288 struct lpfc_vport *vport;
3289 struct Scsi_Host *shost;
3292 if (dev != &phba->pcidev->dev) {
3293 shost = scsi_host_alloc(&lpfc_vport_template,
3294 sizeof(struct lpfc_vport));
3296 if (phba->sli_rev == LPFC_SLI_REV4)
3297 shost = scsi_host_alloc(&lpfc_template,
3298 sizeof(struct lpfc_vport));
3300 shost = scsi_host_alloc(&lpfc_template_s3,
3301 sizeof(struct lpfc_vport));
3306 vport = (struct lpfc_vport *) shost->hostdata;
3308 vport->load_flag |= FC_LOADING;
3309 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3310 vport->fc_rscn_flush = 0;
3312 lpfc_get_vport_cfgparam(vport);
3313 shost->unique_id = instance;
3314 shost->max_id = LPFC_MAX_TARGET;
3315 shost->max_lun = vport->cfg_max_luns;
3316 shost->this_id = -1;
3317 shost->max_cmd_len = 16;
3318 shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3319 if (phba->sli_rev == LPFC_SLI_REV4) {
3320 shost->dma_boundary =
3321 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3322 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3326 * Set initial can_queue value since 0 is no longer supported and
3327 * scsi_add_host will fail. This will be adjusted later based on the
3328 * max xri value determined in hba setup.
3330 shost->can_queue = phba->cfg_hba_queue_depth - 10;
3331 if (dev != &phba->pcidev->dev) {
3332 shost->transportt = lpfc_vport_transport_template;
3333 vport->port_type = LPFC_NPIV_PORT;
3335 shost->transportt = lpfc_transport_template;
3336 vport->port_type = LPFC_PHYSICAL_PORT;
3339 /* Initialize all internally managed lists. */
3340 INIT_LIST_HEAD(&vport->fc_nodes);
3341 INIT_LIST_HEAD(&vport->rcv_buffer_list);
3342 spin_lock_init(&vport->work_port_lock);
3344 init_timer(&vport->fc_disctmo);
3345 vport->fc_disctmo.function = lpfc_disc_timeout;
3346 vport->fc_disctmo.data = (unsigned long)vport;
3348 init_timer(&vport->els_tmofunc);
3349 vport->els_tmofunc.function = lpfc_els_timeout;
3350 vport->els_tmofunc.data = (unsigned long)vport;
3352 init_timer(&vport->delayed_disc_tmo);
3353 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3354 vport->delayed_disc_tmo.data = (unsigned long)vport;
3356 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3360 spin_lock_irq(&phba->hbalock);
3361 list_add_tail(&vport->listentry, &phba->port_list);
3362 spin_unlock_irq(&phba->hbalock);
3366 scsi_host_put(shost);
3372 * destroy_port - destroy an FC port
3373 * @vport: pointer to an lpfc virtual N_Port data structure.
3375 * This routine destroys a FC port from the upper layer protocol. All the
3376 * resources associated with the port are released.
3379 destroy_port(struct lpfc_vport *vport)
3381 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3382 struct lpfc_hba *phba = vport->phba;
3384 lpfc_debugfs_terminate(vport);
3385 fc_remove_host(shost);
3386 scsi_remove_host(shost);
3388 spin_lock_irq(&phba->hbalock);
3389 list_del_init(&vport->listentry);
3390 spin_unlock_irq(&phba->hbalock);
3392 lpfc_cleanup(vport);
3397 * lpfc_get_instance - Get a unique integer ID
3399 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3400 * uses the kernel idr facility to perform the task.
3403 * instance - a unique integer ID allocated as the new instance.
3404 * -1 - lpfc get instance failed.
3407 lpfc_get_instance(void)
3411 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3412 return ret < 0 ? -1 : ret;
3416 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3417 * @shost: pointer to SCSI host data structure.
3418 * @time: elapsed time of the scan in jiffies.
3420 * This routine is called by the SCSI layer with a SCSI host to determine
3421 * whether the scan host is finished.
3423 * Note: there is no scan_start function as adapter initialization will have
3424 * asynchronously kicked off the link initialization.
3427 * 0 - SCSI host scan is not over yet.
3428 * 1 - SCSI host scan is over.
3430 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3432 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3433 struct lpfc_hba *phba = vport->phba;
3436 spin_lock_irq(shost->host_lock);
3438 if (vport->load_flag & FC_UNLOADING) {
3442 if (time >= msecs_to_jiffies(30 * 1000)) {
3443 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3444 "0461 Scanning longer than 30 "
3445 "seconds. Continuing initialization\n");
3449 if (time >= msecs_to_jiffies(15 * 1000) &&
3450 phba->link_state <= LPFC_LINK_DOWN) {
3451 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3452 "0465 Link down longer than 15 "
3453 "seconds. Continuing initialization\n");
3458 if (vport->port_state != LPFC_VPORT_READY)
3460 if (vport->num_disc_nodes || vport->fc_prli_sent)
3462 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3464 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3470 spin_unlock_irq(shost->host_lock);
3475 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3476 * @shost: pointer to SCSI host data structure.
3478 * This routine initializes a given SCSI host attributes on a FC port. The
3479 * SCSI host can be either on top of a physical port or a virtual port.
3481 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3483 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3484 struct lpfc_hba *phba = vport->phba;
3486 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
3489 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3490 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3491 fc_host_supported_classes(shost) = FC_COS_CLASS3;
3493 memset(fc_host_supported_fc4s(shost), 0,
3494 sizeof(fc_host_supported_fc4s(shost)));
3495 fc_host_supported_fc4s(shost)[2] = 1;
3496 fc_host_supported_fc4s(shost)[7] = 1;
3498 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3499 sizeof fc_host_symbolic_name(shost));
3501 fc_host_supported_speeds(shost) = 0;
3502 if (phba->lmt & LMT_32Gb)
3503 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
3504 if (phba->lmt & LMT_16Gb)
3505 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3506 if (phba->lmt & LMT_10Gb)
3507 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3508 if (phba->lmt & LMT_8Gb)
3509 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3510 if (phba->lmt & LMT_4Gb)
3511 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3512 if (phba->lmt & LMT_2Gb)
3513 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3514 if (phba->lmt & LMT_1Gb)
3515 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3517 fc_host_maxframe_size(shost) =
3518 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3519 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3521 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3523 /* This value is also unchanging */
3524 memset(fc_host_active_fc4s(shost), 0,
3525 sizeof(fc_host_active_fc4s(shost)));
3526 fc_host_active_fc4s(shost)[2] = 1;
3527 fc_host_active_fc4s(shost)[7] = 1;
3529 fc_host_max_npiv_vports(shost) = phba->max_vpi;
3530 spin_lock_irq(shost->host_lock);
3531 vport->load_flag &= ~FC_LOADING;
3532 spin_unlock_irq(shost->host_lock);
3536 * lpfc_stop_port_s3 - Stop SLI3 device port
3537 * @phba: pointer to lpfc hba data structure.
3539 * This routine is invoked to stop an SLI3 device port, it stops the device
3540 * from generating interrupts and stops the device driver's timers for the
3544 lpfc_stop_port_s3(struct lpfc_hba *phba)
3546 /* Clear all interrupt enable conditions */
3547 writel(0, phba->HCregaddr);
3548 readl(phba->HCregaddr); /* flush */
3549 /* Clear all pending interrupts */
3550 writel(0xffffffff, phba->HAregaddr);
3551 readl(phba->HAregaddr); /* flush */
3553 /* Reset some HBA SLI setup states */
3554 lpfc_stop_hba_timers(phba);
3555 phba->pport->work_port_events = 0;
3559 * lpfc_stop_port_s4 - Stop SLI4 device port
3560 * @phba: pointer to lpfc hba data structure.
3562 * This routine is invoked to stop an SLI4 device port, it stops the device
3563 * from generating interrupts and stops the device driver's timers for the
3567 lpfc_stop_port_s4(struct lpfc_hba *phba)
3569 /* Reset some HBA SLI4 setup states */
3570 lpfc_stop_hba_timers(phba);
3571 phba->pport->work_port_events = 0;
3572 phba->sli4_hba.intr_enable = 0;
3576 * lpfc_stop_port - Wrapper function for stopping hba port
3577 * @phba: Pointer to HBA context object.
3579 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3580 * the API jump table function pointer from the lpfc_hba struct.
3583 lpfc_stop_port(struct lpfc_hba *phba)
3585 phba->lpfc_stop_port(phba);
3589 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3590 * @phba: Pointer to hba for which this call is being executed.
3592 * This routine starts the timer waiting for the FCF rediscovery to complete.
3595 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3597 unsigned long fcf_redisc_wait_tmo =
3598 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3599 /* Start fcf rediscovery wait period timer */
3600 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3601 spin_lock_irq(&phba->hbalock);
3602 /* Allow action to new fcf asynchronous event */
3603 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3604 /* Mark the FCF rediscovery pending state */
3605 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3606 spin_unlock_irq(&phba->hbalock);
3610 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3611 * @ptr: Map to lpfc_hba data structure pointer.
3613 * This routine is invoked when waiting for FCF table rediscover has been
3614 * timed out. If new FCF record(s) has (have) been discovered during the
3615 * wait period, a new FCF event shall be added to the FCOE async event
3616 * list, and then worker thread shall be waked up for processing from the
3617 * worker thread context.
3620 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3622 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3624 /* Don't send FCF rediscovery event if timer cancelled */
3625 spin_lock_irq(&phba->hbalock);
3626 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3627 spin_unlock_irq(&phba->hbalock);
3630 /* Clear FCF rediscovery timer pending flag */
3631 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3632 /* FCF rediscovery event to worker thread */
3633 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3634 spin_unlock_irq(&phba->hbalock);
3635 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3636 "2776 FCF rediscover quiescent timer expired\n");
3637 /* wake up worker thread */
3638 lpfc_worker_wake_up(phba);
3642 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3643 * @phba: pointer to lpfc hba data structure.
3644 * @acqe_link: pointer to the async link completion queue entry.
3646 * This routine is to parse the SLI4 link-attention link fault code and
3647 * translate it into the base driver's read link attention mailbox command
3650 * Return: Link-attention status in terms of base driver's coding.
3653 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3654 struct lpfc_acqe_link *acqe_link)
3656 uint16_t latt_fault;
3658 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3659 case LPFC_ASYNC_LINK_FAULT_NONE:
3660 case LPFC_ASYNC_LINK_FAULT_LOCAL:
3661 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3665 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3666 "0398 Invalid link fault code: x%x\n",
3667 bf_get(lpfc_acqe_link_fault, acqe_link));
3668 latt_fault = MBXERR_ERROR;
3675 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3676 * @phba: pointer to lpfc hba data structure.
3677 * @acqe_link: pointer to the async link completion queue entry.
3679 * This routine is to parse the SLI4 link attention type and translate it
3680 * into the base driver's link attention type coding.
3682 * Return: Link attention type in terms of base driver's coding.
3685 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3686 struct lpfc_acqe_link *acqe_link)
3690 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3691 case LPFC_ASYNC_LINK_STATUS_DOWN:
3692 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3693 att_type = LPFC_ATT_LINK_DOWN;
3695 case LPFC_ASYNC_LINK_STATUS_UP:
3696 /* Ignore physical link up events - wait for logical link up */
3697 att_type = LPFC_ATT_RESERVED;
3699 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3700 att_type = LPFC_ATT_LINK_UP;
3703 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3704 "0399 Invalid link attention type: x%x\n",
3705 bf_get(lpfc_acqe_link_status, acqe_link));
3706 att_type = LPFC_ATT_RESERVED;
3713 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3714 * @phba: pointer to lpfc hba data structure.
3716 * This routine is to get an SLI3 FC port's link speed in Mbps.
3718 * Return: link speed in terms of Mbps.
3721 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3723 uint32_t link_speed;
3725 if (!lpfc_is_link_up(phba))
3728 if (phba->sli_rev <= LPFC_SLI_REV3) {
3729 switch (phba->fc_linkspeed) {
3730 case LPFC_LINK_SPEED_1GHZ:
3733 case LPFC_LINK_SPEED_2GHZ:
3736 case LPFC_LINK_SPEED_4GHZ:
3739 case LPFC_LINK_SPEED_8GHZ:
3742 case LPFC_LINK_SPEED_10GHZ:
3745 case LPFC_LINK_SPEED_16GHZ:
3752 if (phba->sli4_hba.link_state.logical_speed)
3754 phba->sli4_hba.link_state.logical_speed;
3756 link_speed = phba->sli4_hba.link_state.speed;
3762 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3763 * @phba: pointer to lpfc hba data structure.
3764 * @evt_code: asynchronous event code.
3765 * @speed_code: asynchronous event link speed code.
3767 * This routine is to parse the giving SLI4 async event link speed code into
3768 * value of Mbps for the link speed.
3770 * Return: link speed in terms of Mbps.
3773 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3776 uint32_t port_speed;
3779 case LPFC_TRAILER_CODE_LINK:
3780 switch (speed_code) {
3781 case LPFC_ASYNC_LINK_SPEED_ZERO:
3784 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3787 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3790 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3793 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3796 case LPFC_ASYNC_LINK_SPEED_20GBPS:
3799 case LPFC_ASYNC_LINK_SPEED_25GBPS:
3802 case LPFC_ASYNC_LINK_SPEED_40GBPS:
3809 case LPFC_TRAILER_CODE_FC:
3810 switch (speed_code) {
3811 case LPFC_FC_LA_SPEED_UNKNOWN:
3814 case LPFC_FC_LA_SPEED_1G:
3817 case LPFC_FC_LA_SPEED_2G:
3820 case LPFC_FC_LA_SPEED_4G:
3823 case LPFC_FC_LA_SPEED_8G:
3826 case LPFC_FC_LA_SPEED_10G:
3829 case LPFC_FC_LA_SPEED_16G:
3832 case LPFC_FC_LA_SPEED_32G:
3846 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3847 * @phba: pointer to lpfc hba data structure.
3848 * @acqe_link: pointer to the async link completion queue entry.
3850 * This routine is to handle the SLI4 asynchronous FCoE link event.
3853 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3854 struct lpfc_acqe_link *acqe_link)
3856 struct lpfc_dmabuf *mp;
3859 struct lpfc_mbx_read_top *la;
3863 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3864 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3866 phba->fcoe_eventtag = acqe_link->event_tag;
3867 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3869 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3870 "0395 The mboxq allocation failed\n");
3873 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3875 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3876 "0396 The lpfc_dmabuf allocation failed\n");
3879 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3881 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3882 "0397 The mbuf allocation failed\n");
3883 goto out_free_dmabuf;
3886 /* Cleanup any outstanding ELS commands */
3887 lpfc_els_flush_all_cmd(phba);
3889 /* Block ELS IOCBs until we have done process link event */
3890 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3892 /* Update link event statistics */
3893 phba->sli.slistat.link_event++;
3895 /* Create lpfc_handle_latt mailbox command from link ACQE */
3896 lpfc_read_topology(phba, pmb, mp);
3897 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3898 pmb->vport = phba->pport;
3900 /* Keep the link status for extra SLI4 state machine reference */
3901 phba->sli4_hba.link_state.speed =
3902 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3903 bf_get(lpfc_acqe_link_speed, acqe_link));
3904 phba->sli4_hba.link_state.duplex =
3905 bf_get(lpfc_acqe_link_duplex, acqe_link);
3906 phba->sli4_hba.link_state.status =
3907 bf_get(lpfc_acqe_link_status, acqe_link);
3908 phba->sli4_hba.link_state.type =
3909 bf_get(lpfc_acqe_link_type, acqe_link);
3910 phba->sli4_hba.link_state.number =
3911 bf_get(lpfc_acqe_link_number, acqe_link);
3912 phba->sli4_hba.link_state.fault =
3913 bf_get(lpfc_acqe_link_fault, acqe_link);
3914 phba->sli4_hba.link_state.logical_speed =
3915 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3917 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3918 "2900 Async FC/FCoE Link event - Speed:%dGBit "
3919 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3920 "Logical speed:%dMbps Fault:%d\n",
3921 phba->sli4_hba.link_state.speed,
3922 phba->sli4_hba.link_state.topology,
3923 phba->sli4_hba.link_state.status,
3924 phba->sli4_hba.link_state.type,
3925 phba->sli4_hba.link_state.number,
3926 phba->sli4_hba.link_state.logical_speed,
3927 phba->sli4_hba.link_state.fault);
3929 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3930 * topology info. Note: Optional for non FC-AL ports.
3932 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3933 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3934 if (rc == MBX_NOT_FINISHED)
3935 goto out_free_dmabuf;
3939 * For FCoE Mode: fill in all the topology information we need and call
3940 * the READ_TOPOLOGY completion routine to continue without actually
3941 * sending the READ_TOPOLOGY mailbox command to the port.
3943 /* Parse and translate status field */
3945 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3947 /* Parse and translate link attention fields */
3948 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3949 la->eventTag = acqe_link->event_tag;
3950 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3951 bf_set(lpfc_mbx_read_top_link_spd, la,
3952 (bf_get(lpfc_acqe_link_speed, acqe_link)));
3954 /* Fake the the following irrelvant fields */
3955 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3956 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3957 bf_set(lpfc_mbx_read_top_il, la, 0);
3958 bf_set(lpfc_mbx_read_top_pb, la, 0);
3959 bf_set(lpfc_mbx_read_top_fa, la, 0);
3960 bf_set(lpfc_mbx_read_top_mm, la, 0);
3962 /* Invoke the lpfc_handle_latt mailbox command callback function */
3963 lpfc_mbx_cmpl_read_topology(phba, pmb);
3970 mempool_free(pmb, phba->mbox_mem_pool);
3974 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3975 * @phba: pointer to lpfc hba data structure.
3976 * @acqe_fc: pointer to the async fc completion queue entry.
3978 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3979 * that the event was received and then issue a read_topology mailbox command so
3980 * that the rest of the driver will treat it the same as SLI3.
3983 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3985 struct lpfc_dmabuf *mp;
3989 if (bf_get(lpfc_trailer_type, acqe_fc) !=
3990 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3991 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3992 "2895 Non FC link Event detected.(%d)\n",
3993 bf_get(lpfc_trailer_type, acqe_fc));
3996 /* Keep the link status for extra SLI4 state machine reference */
3997 phba->sli4_hba.link_state.speed =
3998 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
3999 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4000 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4001 phba->sli4_hba.link_state.topology =
4002 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4003 phba->sli4_hba.link_state.status =
4004 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4005 phba->sli4_hba.link_state.type =
4006 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4007 phba->sli4_hba.link_state.number =
4008 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4009 phba->sli4_hba.link_state.fault =
4010 bf_get(lpfc_acqe_link_fault, acqe_fc);
4011 phba->sli4_hba.link_state.logical_speed =
4012 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4013 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4014 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4015 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4016 "%dMbps Fault:%d\n",
4017 phba->sli4_hba.link_state.speed,
4018 phba->sli4_hba.link_state.topology,
4019 phba->sli4_hba.link_state.status,
4020 phba->sli4_hba.link_state.type,
4021 phba->sli4_hba.link_state.number,
4022 phba->sli4_hba.link_state.logical_speed,
4023 phba->sli4_hba.link_state.fault);
4024 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4026 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4027 "2897 The mboxq allocation failed\n");
4030 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4032 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4033 "2898 The lpfc_dmabuf allocation failed\n");
4036 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4038 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4039 "2899 The mbuf allocation failed\n");
4040 goto out_free_dmabuf;
4043 /* Cleanup any outstanding ELS commands */
4044 lpfc_els_flush_all_cmd(phba);
4046 /* Block ELS IOCBs until we have done process link event */
4047 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
4049 /* Update link event statistics */
4050 phba->sli.slistat.link_event++;
4052 /* Create lpfc_handle_latt mailbox command from link ACQE */
4053 lpfc_read_topology(phba, pmb, mp);
4054 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4055 pmb->vport = phba->pport;
4057 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4058 if (rc == MBX_NOT_FINISHED)
4059 goto out_free_dmabuf;
4065 mempool_free(pmb, phba->mbox_mem_pool);
4069 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4070 * @phba: pointer to lpfc hba data structure.
4071 * @acqe_fc: pointer to the async SLI completion queue entry.
4073 * This routine is to handle the SLI4 asynchronous SLI events.
4076 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4082 uint8_t operational = 0;
4083 struct temp_event temp_event_data;
4084 struct lpfc_acqe_misconfigured_event *misconfigured;
4085 struct Scsi_Host *shost;
4087 evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4089 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4090 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4091 "x%08x SLI Event Type:%d\n",
4092 acqe_sli->event_data1, acqe_sli->event_data2,
4095 port_name = phba->Port[0];
4096 if (port_name == 0x00)
4097 port_name = '?'; /* get port name is empty */
4100 case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4101 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4102 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4103 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4105 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4106 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4107 acqe_sli->event_data1, port_name);
4109 shost = lpfc_shost_from_vport(phba->pport);
4110 fc_host_post_vendor_event(shost, fc_get_event_number(),
4111 sizeof(temp_event_data),
4112 (char *)&temp_event_data,
4113 SCSI_NL_VID_TYPE_PCI
4114 | PCI_VENDOR_ID_EMULEX);
4116 case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4117 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4118 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4119 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4121 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4122 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4123 acqe_sli->event_data1, port_name);
4125 shost = lpfc_shost_from_vport(phba->pport);
4126 fc_host_post_vendor_event(shost, fc_get_event_number(),
4127 sizeof(temp_event_data),
4128 (char *)&temp_event_data,
4129 SCSI_NL_VID_TYPE_PCI
4130 | PCI_VENDOR_ID_EMULEX);
4132 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4133 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4134 &acqe_sli->event_data1;
4136 /* fetch the status for this port */
4137 switch (phba->sli4_hba.lnk_info.lnk_no) {
4138 case LPFC_LINK_NUMBER_0:
4139 status = bf_get(lpfc_sli_misconfigured_port0_state,
4140 &misconfigured->theEvent);
4141 operational = bf_get(lpfc_sli_misconfigured_port0_op,
4142 &misconfigured->theEvent);
4144 case LPFC_LINK_NUMBER_1:
4145 status = bf_get(lpfc_sli_misconfigured_port1_state,
4146 &misconfigured->theEvent);
4147 operational = bf_get(lpfc_sli_misconfigured_port1_op,
4148 &misconfigured->theEvent);
4150 case LPFC_LINK_NUMBER_2:
4151 status = bf_get(lpfc_sli_misconfigured_port2_state,
4152 &misconfigured->theEvent);
4153 operational = bf_get(lpfc_sli_misconfigured_port2_op,
4154 &misconfigured->theEvent);
4156 case LPFC_LINK_NUMBER_3:
4157 status = bf_get(lpfc_sli_misconfigured_port3_state,
4158 &misconfigured->theEvent);
4159 operational = bf_get(lpfc_sli_misconfigured_port3_op,
4160 &misconfigured->theEvent);
4163 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4165 "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
4166 "event: Invalid link %d",
4167 phba->sli4_hba.lnk_info.lnk_no);
4171 /* Skip if optic state unchanged */
4172 if (phba->sli4_hba.lnk_info.optic_state == status)
4176 case LPFC_SLI_EVENT_STATUS_VALID:
4177 sprintf(message, "Physical Link is functional");
4179 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4180 sprintf(message, "Optics faulted/incorrectly "
4181 "installed/not installed - Reseat optics, "
4182 "if issue not resolved, replace.");
4184 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4186 "Optics of two types installed - Remove one "
4187 "optic or install matching pair of optics.");
4189 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4190 sprintf(message, "Incompatible optics - Replace with "
4191 "compatible optics for card to function.");
4193 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
4194 sprintf(message, "Unqualified optics - Replace with "
4195 "Avago optics for Warranty and Technical "
4196 "Support - Link is%s operational",
4197 (operational) ? "" : " not");
4199 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
4200 sprintf(message, "Uncertified optics - Replace with "
4201 "Avago-certified optics to enable link "
4202 "operation - Link is%s operational",
4203 (operational) ? "" : " not");
4206 /* firmware is reporting a status we don't know about */
4207 sprintf(message, "Unknown event status x%02x", status);
4210 phba->sli4_hba.lnk_info.optic_state = status;
4211 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4212 "3176 Port Name %c %s\n", port_name, message);
4214 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4215 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4216 "3192 Remote DPort Test Initiated - "
4217 "Event Data1:x%08x Event Data2: x%08x\n",
4218 acqe_sli->event_data1, acqe_sli->event_data2);
4221 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4222 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4223 "x%08x SLI Event Type:%d\n",
4224 acqe_sli->event_data1, acqe_sli->event_data2,
4231 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4232 * @vport: pointer to vport data structure.
4234 * This routine is to perform Clear Virtual Link (CVL) on a vport in
4235 * response to a CVL event.
4237 * Return the pointer to the ndlp with the vport if successful, otherwise
4240 static struct lpfc_nodelist *
4241 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4243 struct lpfc_nodelist *ndlp;
4244 struct Scsi_Host *shost;
4245 struct lpfc_hba *phba;
4252 ndlp = lpfc_findnode_did(vport, Fabric_DID);
4254 /* Cannot find existing Fabric ndlp, so allocate a new one */
4255 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4258 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4259 /* Set the node type */
4260 ndlp->nlp_type |= NLP_FABRIC;
4261 /* Put ndlp onto node list */
4262 lpfc_enqueue_node(vport, ndlp);
4263 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4264 /* re-setup ndlp without removing from node list */
4265 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4269 if ((phba->pport->port_state < LPFC_FLOGI) &&
4270 (phba->pport->port_state != LPFC_VPORT_FAILED))
4272 /* If virtual link is not yet instantiated ignore CVL */
4273 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4274 && (vport->port_state != LPFC_VPORT_FAILED))
4276 shost = lpfc_shost_from_vport(vport);
4279 lpfc_linkdown_port(vport);
4280 lpfc_cleanup_pending_mbox(vport);
4281 spin_lock_irq(shost->host_lock);
4282 vport->fc_flag |= FC_VPORT_CVL_RCVD;
4283 spin_unlock_irq(shost->host_lock);
4289 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4290 * @vport: pointer to lpfc hba data structure.
4292 * This routine is to perform Clear Virtual Link (CVL) on all vports in
4293 * response to a FCF dead event.
4296 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4298 struct lpfc_vport **vports;
4301 vports = lpfc_create_vport_work_array(phba);
4303 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4304 lpfc_sli4_perform_vport_cvl(vports[i]);
4305 lpfc_destroy_vport_work_array(phba, vports);
4309 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4310 * @phba: pointer to lpfc hba data structure.
4311 * @acqe_link: pointer to the async fcoe completion queue entry.
4313 * This routine is to handle the SLI4 asynchronous fcoe event.
4316 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4317 struct lpfc_acqe_fip *acqe_fip)
4319 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4321 struct lpfc_vport *vport;
4322 struct lpfc_nodelist *ndlp;
4323 struct Scsi_Host *shost;
4324 int active_vlink_present;
4325 struct lpfc_vport **vports;
4328 phba->fc_eventTag = acqe_fip->event_tag;
4329 phba->fcoe_eventtag = acqe_fip->event_tag;
4330 switch (event_type) {
4331 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4332 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4333 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4334 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4336 "2546 New FCF event, evt_tag:x%x, "
4338 acqe_fip->event_tag,
4341 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4343 "2788 FCF param modified event, "
4344 "evt_tag:x%x, index:x%x\n",
4345 acqe_fip->event_tag,
4347 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4349 * During period of FCF discovery, read the FCF
4350 * table record indexed by the event to update
4351 * FCF roundrobin failover eligible FCF bmask.
4353 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4355 "2779 Read FCF (x%x) for updating "
4356 "roundrobin FCF failover bmask\n",
4358 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4361 /* If the FCF discovery is in progress, do nothing. */
4362 spin_lock_irq(&phba->hbalock);
4363 if (phba->hba_flag & FCF_TS_INPROG) {
4364 spin_unlock_irq(&phba->hbalock);
4367 /* If fast FCF failover rescan event is pending, do nothing */
4368 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4369 spin_unlock_irq(&phba->hbalock);
4373 /* If the FCF has been in discovered state, do nothing. */
4374 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4375 spin_unlock_irq(&phba->hbalock);
4378 spin_unlock_irq(&phba->hbalock);
4380 /* Otherwise, scan the entire FCF table and re-discover SAN */
4381 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4382 "2770 Start FCF table scan per async FCF "
4383 "event, evt_tag:x%x, index:x%x\n",
4384 acqe_fip->event_tag, acqe_fip->index);
4385 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4386 LPFC_FCOE_FCF_GET_FIRST);
4388 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4389 "2547 Issue FCF scan read FCF mailbox "
4390 "command failed (x%x)\n", rc);
4393 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4394 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4395 "2548 FCF Table full count 0x%x tag 0x%x\n",
4396 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4397 acqe_fip->event_tag);
4400 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4401 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4402 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4403 "2549 FCF (x%x) disconnected from network, "
4404 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4406 * If we are in the middle of FCF failover process, clear
4407 * the corresponding FCF bit in the roundrobin bitmap.
4409 spin_lock_irq(&phba->hbalock);
4410 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4411 spin_unlock_irq(&phba->hbalock);
4412 /* Update FLOGI FCF failover eligible FCF bmask */
4413 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4416 spin_unlock_irq(&phba->hbalock);
4418 /* If the event is not for currently used fcf do nothing */
4419 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4423 * Otherwise, request the port to rediscover the entire FCF
4424 * table for a fast recovery from case that the current FCF
4425 * is no longer valid as we are not in the middle of FCF
4426 * failover process already.
4428 spin_lock_irq(&phba->hbalock);
4429 /* Mark the fast failover process in progress */
4430 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4431 spin_unlock_irq(&phba->hbalock);
4433 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4434 "2771 Start FCF fast failover process due to "
4435 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4436 "\n", acqe_fip->event_tag, acqe_fip->index);
4437 rc = lpfc_sli4_redisc_fcf_table(phba);
4439 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4441 "2772 Issue FCF rediscover mabilbox "
4442 "command failed, fail through to FCF "
4444 spin_lock_irq(&phba->hbalock);
4445 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4446 spin_unlock_irq(&phba->hbalock);
4448 * Last resort will fail over by treating this
4449 * as a link down to FCF registration.
4451 lpfc_sli4_fcf_dead_failthrough(phba);
4453 /* Reset FCF roundrobin bmask for new discovery */
4454 lpfc_sli4_clear_fcf_rr_bmask(phba);
4456 * Handling fast FCF failover to a DEAD FCF event is
4457 * considered equalivant to receiving CVL to all vports.
4459 lpfc_sli4_perform_all_vport_cvl(phba);
4462 case LPFC_FIP_EVENT_TYPE_CVL:
4463 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4464 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4465 "2718 Clear Virtual Link Received for VPI 0x%x"
4466 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4468 vport = lpfc_find_vport_by_vpid(phba,
4470 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4473 active_vlink_present = 0;
4475 vports = lpfc_create_vport_work_array(phba);
4477 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4479 if ((!(vports[i]->fc_flag &
4480 FC_VPORT_CVL_RCVD)) &&
4481 (vports[i]->port_state > LPFC_FDISC)) {
4482 active_vlink_present = 1;
4486 lpfc_destroy_vport_work_array(phba, vports);
4490 * Don't re-instantiate if vport is marked for deletion.
4491 * If we are here first then vport_delete is going to wait
4492 * for discovery to complete.
4494 if (!(vport->load_flag & FC_UNLOADING) &&
4495 active_vlink_present) {
4497 * If there are other active VLinks present,
4498 * re-instantiate the Vlink using FDISC.
4500 mod_timer(&ndlp->nlp_delayfunc,
4501 jiffies + msecs_to_jiffies(1000));
4502 shost = lpfc_shost_from_vport(vport);
4503 spin_lock_irq(shost->host_lock);
4504 ndlp->nlp_flag |= NLP_DELAY_TMO;
4505 spin_unlock_irq(shost->host_lock);
4506 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4507 vport->port_state = LPFC_FDISC;
4510 * Otherwise, we request port to rediscover
4511 * the entire FCF table for a fast recovery
4512 * from possible case that the current FCF
4513 * is no longer valid if we are not already
4514 * in the FCF failover process.
4516 spin_lock_irq(&phba->hbalock);
4517 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4518 spin_unlock_irq(&phba->hbalock);
4521 /* Mark the fast failover process in progress */
4522 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4523 spin_unlock_irq(&phba->hbalock);
4524 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4526 "2773 Start FCF failover per CVL, "
4527 "evt_tag:x%x\n", acqe_fip->event_tag);
4528 rc = lpfc_sli4_redisc_fcf_table(phba);
4530 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4532 "2774 Issue FCF rediscover "
4533 "mabilbox command failed, "
4534 "through to CVL event\n");
4535 spin_lock_irq(&phba->hbalock);
4536 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4537 spin_unlock_irq(&phba->hbalock);
4539 * Last resort will be re-try on the
4540 * the current registered FCF entry.
4542 lpfc_retry_pport_discovery(phba);
4545 * Reset FCF roundrobin bmask for new
4548 lpfc_sli4_clear_fcf_rr_bmask(phba);
4552 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4553 "0288 Unknown FCoE event type 0x%x event tag "
4554 "0x%x\n", event_type, acqe_fip->event_tag);
4560 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4561 * @phba: pointer to lpfc hba data structure.
4562 * @acqe_link: pointer to the async dcbx completion queue entry.
4564 * This routine is to handle the SLI4 asynchronous dcbx event.
4567 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4568 struct lpfc_acqe_dcbx *acqe_dcbx)
4570 phba->fc_eventTag = acqe_dcbx->event_tag;
4571 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4572 "0290 The SLI4 DCBX asynchronous event is not "
4577 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4578 * @phba: pointer to lpfc hba data structure.
4579 * @acqe_link: pointer to the async grp5 completion queue entry.
4581 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4582 * is an asynchronous notified of a logical link speed change. The Port
4583 * reports the logical link speed in units of 10Mbps.
4586 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4587 struct lpfc_acqe_grp5 *acqe_grp5)
4589 uint16_t prev_ll_spd;
4591 phba->fc_eventTag = acqe_grp5->event_tag;
4592 phba->fcoe_eventtag = acqe_grp5->event_tag;
4593 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4594 phba->sli4_hba.link_state.logical_speed =
4595 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4596 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4597 "2789 GRP5 Async Event: Updating logical link speed "
4598 "from %dMbps to %dMbps\n", prev_ll_spd,
4599 phba->sli4_hba.link_state.logical_speed);
4603 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4604 * @phba: pointer to lpfc hba data structure.
4606 * This routine is invoked by the worker thread to process all the pending
4607 * SLI4 asynchronous events.
4609 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4611 struct lpfc_cq_event *cq_event;
4613 /* First, declare the async event has been handled */
4614 spin_lock_irq(&phba->hbalock);
4615 phba->hba_flag &= ~ASYNC_EVENT;
4616 spin_unlock_irq(&phba->hbalock);
4617 /* Now, handle all the async events */
4618 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4619 /* Get the first event from the head of the event queue */
4620 spin_lock_irq(&phba->hbalock);
4621 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4622 cq_event, struct lpfc_cq_event, list);
4623 spin_unlock_irq(&phba->hbalock);
4624 /* Process the asynchronous event */
4625 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4626 case LPFC_TRAILER_CODE_LINK:
4627 lpfc_sli4_async_link_evt(phba,
4628 &cq_event->cqe.acqe_link);
4630 case LPFC_TRAILER_CODE_FCOE:
4631 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4633 case LPFC_TRAILER_CODE_DCBX:
4634 lpfc_sli4_async_dcbx_evt(phba,
4635 &cq_event->cqe.acqe_dcbx);
4637 case LPFC_TRAILER_CODE_GRP5:
4638 lpfc_sli4_async_grp5_evt(phba,
4639 &cq_event->cqe.acqe_grp5);
4641 case LPFC_TRAILER_CODE_FC:
4642 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4644 case LPFC_TRAILER_CODE_SLI:
4645 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4648 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4649 "1804 Invalid asynchrous event code: "
4650 "x%x\n", bf_get(lpfc_trailer_code,
4651 &cq_event->cqe.mcqe_cmpl));
4654 /* Free the completion event processed to the free pool */
4655 lpfc_sli4_cq_event_release(phba, cq_event);
4660 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4661 * @phba: pointer to lpfc hba data structure.
4663 * This routine is invoked by the worker thread to process FCF table
4664 * rediscovery pending completion event.
4666 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4670 spin_lock_irq(&phba->hbalock);
4671 /* Clear FCF rediscovery timeout event */
4672 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4673 /* Clear driver fast failover FCF record flag */
4674 phba->fcf.failover_rec.flag = 0;
4675 /* Set state for FCF fast failover */
4676 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4677 spin_unlock_irq(&phba->hbalock);
4679 /* Scan FCF table from the first entry to re-discover SAN */
4680 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4681 "2777 Start post-quiescent FCF table scan\n");
4682 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4684 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4685 "2747 Issue FCF scan read FCF mailbox "
4686 "command failed 0x%x\n", rc);
4690 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4691 * @phba: pointer to lpfc hba data structure.
4692 * @dev_grp: The HBA PCI-Device group number.
4694 * This routine is invoked to set up the per HBA PCI-Device group function
4695 * API jump table entries.
4697 * Return: 0 if success, otherwise -ENODEV
4700 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4704 /* Set up lpfc PCI-device group */
4705 phba->pci_dev_grp = dev_grp;
4707 /* The LPFC_PCI_DEV_OC uses SLI4 */
4708 if (dev_grp == LPFC_PCI_DEV_OC)
4709 phba->sli_rev = LPFC_SLI_REV4;
4711 /* Set up device INIT API function jump table */
4712 rc = lpfc_init_api_table_setup(phba, dev_grp);
4715 /* Set up SCSI API function jump table */
4716 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4719 /* Set up SLI API function jump table */
4720 rc = lpfc_sli_api_table_setup(phba, dev_grp);
4723 /* Set up MBOX API function jump table */
4724 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4732 * lpfc_log_intr_mode - Log the active interrupt mode
4733 * @phba: pointer to lpfc hba data structure.
4734 * @intr_mode: active interrupt mode adopted.
4736 * This routine it invoked to log the currently used active interrupt mode
4739 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4741 switch (intr_mode) {
4743 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4744 "0470 Enable INTx interrupt mode.\n");
4747 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4748 "0481 Enabled MSI interrupt mode.\n");
4751 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4752 "0480 Enabled MSI-X interrupt mode.\n");
4755 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4756 "0482 Illegal interrupt mode.\n");
4763 * lpfc_enable_pci_dev - Enable a generic PCI device.
4764 * @phba: pointer to lpfc hba data structure.
4766 * This routine is invoked to enable the PCI device that is common to all
4771 * other values - error
4774 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4776 struct pci_dev *pdev;
4779 /* Obtain PCI device reference */
4783 pdev = phba->pcidev;
4784 /* Select PCI BARs */
4785 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4786 /* Enable PCI device */
4787 if (pci_enable_device_mem(pdev))
4789 /* Request PCI resource for the device */
4790 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4791 goto out_disable_device;
4792 /* Set up device as PCI master and save state for EEH */
4793 pci_set_master(pdev);
4794 pci_try_set_mwi(pdev);
4795 pci_save_state(pdev);
4797 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4798 if (pci_is_pcie(pdev))
4799 pdev->needs_freset = 1;
4804 pci_disable_device(pdev);
4806 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4807 "1401 Failed to enable pci device, bars:x%x\n", bars);
4812 * lpfc_disable_pci_dev - Disable a generic PCI device.
4813 * @phba: pointer to lpfc hba data structure.
4815 * This routine is invoked to disable the PCI device that is common to all
4819 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4821 struct pci_dev *pdev;
4824 /* Obtain PCI device reference */
4828 pdev = phba->pcidev;
4829 /* Select PCI BARs */
4830 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4831 /* Release PCI resource and disable PCI device */
4832 pci_release_selected_regions(pdev, bars);
4833 pci_disable_device(pdev);
4839 * lpfc_reset_hba - Reset a hba
4840 * @phba: pointer to lpfc hba data structure.
4842 * This routine is invoked to reset a hba device. It brings the HBA
4843 * offline, performs a board restart, and then brings the board back
4844 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4845 * on outstanding mailbox commands.
4848 lpfc_reset_hba(struct lpfc_hba *phba)
4850 /* If resets are disabled then set error state and return. */
4851 if (!phba->cfg_enable_hba_reset) {
4852 phba->link_state = LPFC_HBA_ERROR;
4855 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
4856 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4858 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
4860 lpfc_sli_brdrestart(phba);
4862 lpfc_unblock_mgmt_io(phba);
4866 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4867 * @phba: pointer to lpfc hba data structure.
4869 * This function enables the PCI SR-IOV virtual functions to a physical
4870 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4871 * enable the number of virtual functions to the physical function. As
4872 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4873 * API call does not considered as an error condition for most of the device.
4876 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4878 struct pci_dev *pdev = phba->pcidev;
4882 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4886 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4891 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4892 * @phba: pointer to lpfc hba data structure.
4893 * @nr_vfn: number of virtual functions to be enabled.
4895 * This function enables the PCI SR-IOV virtual functions to a physical
4896 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4897 * enable the number of virtual functions to the physical function. As
4898 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4899 * API call does not considered as an error condition for most of the device.
4902 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4904 struct pci_dev *pdev = phba->pcidev;
4905 uint16_t max_nr_vfn;
4908 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4909 if (nr_vfn > max_nr_vfn) {
4910 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4911 "3057 Requested vfs (%d) greater than "
4912 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4916 rc = pci_enable_sriov(pdev, nr_vfn);
4918 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4919 "2806 Failed to enable sriov on this device "
4920 "with vfn number nr_vf:%d, rc:%d\n",
4923 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4924 "2807 Successful enable sriov on this device "
4925 "with vfn number nr_vf:%d\n", nr_vfn);
4930 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4931 * @phba: pointer to lpfc hba data structure.
4933 * This routine is invoked to set up the driver internal resources specific to
4934 * support the SLI-3 HBA device it attached to.
4938 * other values - error
4941 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4943 struct lpfc_sli *psli;
4947 * Initialize timers used by driver
4950 /* Heartbeat timer */
4951 init_timer(&phba->hb_tmofunc);
4952 phba->hb_tmofunc.function = lpfc_hb_timeout;
4953 phba->hb_tmofunc.data = (unsigned long)phba;
4956 /* MBOX heartbeat timer */
4957 init_timer(&psli->mbox_tmo);
4958 psli->mbox_tmo.function = lpfc_mbox_timeout;
4959 psli->mbox_tmo.data = (unsigned long) phba;
4960 /* FCP polling mode timer */
4961 init_timer(&phba->fcp_poll_timer);
4962 phba->fcp_poll_timer.function = lpfc_poll_timeout;
4963 phba->fcp_poll_timer.data = (unsigned long) phba;
4964 /* Fabric block timer */
4965 init_timer(&phba->fabric_block_timer);
4966 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4967 phba->fabric_block_timer.data = (unsigned long) phba;
4968 /* EA polling mode timer */
4969 init_timer(&phba->eratt_poll);
4970 phba->eratt_poll.function = lpfc_poll_eratt;
4971 phba->eratt_poll.data = (unsigned long) phba;
4973 /* Host attention work mask setup */
4974 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4975 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4977 /* Get all the module params for configuring this host */
4978 lpfc_get_cfgparam(phba);
4979 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4980 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4981 /* check for menlo minimum sg count */
4982 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4983 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4986 if (!phba->sli.ring)
4987 phba->sli.ring = kzalloc(LPFC_SLI3_MAX_RING *
4988 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4989 if (!phba->sli.ring)
4993 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
4994 * used to create the sg_dma_buf_pool must be dynamically calculated.
4997 /* Initialize the host templates the configured values. */
4998 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4999 lpfc_template_s3.sg_tablesize = phba->cfg_sg_seg_cnt;
5001 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5002 if (phba->cfg_enable_bg) {
5004 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5005 * the FCP rsp, and a BDE for each. Sice we have no control
5006 * over how many protection data segments the SCSI Layer
5007 * will hand us (ie: there could be one for every block
5008 * in the IO), we just allocate enough BDEs to accomidate
5009 * our max amount and we need to limit lpfc_sg_seg_cnt to
5010 * minimize the risk of running out.
5012 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5013 sizeof(struct fcp_rsp) +
5014 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5016 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5017 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5019 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5020 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5023 * The scsi_buf for a regular I/O will hold the FCP cmnd,
5024 * the FCP rsp, a BDE for each, and a BDE for up to
5025 * cfg_sg_seg_cnt data segments.
5027 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5028 sizeof(struct fcp_rsp) +
5029 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5031 /* Total BDEs in BPL for scsi_sg_list */
5032 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5035 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5036 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5037 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5038 phba->cfg_total_seg_cnt);
5040 phba->max_vpi = LPFC_MAX_VPI;
5041 /* This will be set to correct value after config_port mbox */
5042 phba->max_vports = 0;
5045 * Initialize the SLI Layer to run with lpfc HBAs.
5047 lpfc_sli_setup(phba);
5048 lpfc_sli_queue_setup(phba);
5050 /* Allocate device driver memory */
5051 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5055 * Enable sr-iov virtual functions if supported and configured
5056 * through the module parameter.
5058 if (phba->cfg_sriov_nr_virtfn > 0) {
5059 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5060 phba->cfg_sriov_nr_virtfn);
5062 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5063 "2808 Requested number of SR-IOV "
5064 "virtual functions (%d) is not "
5066 phba->cfg_sriov_nr_virtfn);
5067 phba->cfg_sriov_nr_virtfn = 0;
5075 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5076 * @phba: pointer to lpfc hba data structure.
5078 * This routine is invoked to unset the driver internal resources set up
5079 * specific for supporting the SLI-3 HBA device it attached to.
5082 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5084 /* Free device driver memory allocated */
5085 lpfc_mem_free_all(phba);
5091 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5092 * @phba: pointer to lpfc hba data structure.
5094 * This routine is invoked to set up the driver internal resources specific to
5095 * support the SLI-4 HBA device it attached to.
5099 * other values - error
5102 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5104 struct lpfc_vector_map_info *cpup;
5105 struct lpfc_sli *psli;
5106 LPFC_MBOXQ_t *mboxq;
5107 int rc, i, hbq_count, max_buf_size;
5108 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5109 struct lpfc_mqe *mqe;
5111 int fof_vectors = 0;
5113 /* Get all the module params for configuring this host */
5114 lpfc_get_cfgparam(phba);
5116 /* Before proceed, wait for POST done and device ready */
5117 rc = lpfc_sli4_post_status_check(phba);
5122 * Initialize timers used by driver
5125 /* Heartbeat timer */
5126 init_timer(&phba->hb_tmofunc);
5127 phba->hb_tmofunc.function = lpfc_hb_timeout;
5128 phba->hb_tmofunc.data = (unsigned long)phba;
5129 init_timer(&phba->rrq_tmr);
5130 phba->rrq_tmr.function = lpfc_rrq_timeout;
5131 phba->rrq_tmr.data = (unsigned long)phba;
5134 /* MBOX heartbeat timer */
5135 init_timer(&psli->mbox_tmo);
5136 psli->mbox_tmo.function = lpfc_mbox_timeout;
5137 psli->mbox_tmo.data = (unsigned long) phba;
5138 /* Fabric block timer */
5139 init_timer(&phba->fabric_block_timer);
5140 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
5141 phba->fabric_block_timer.data = (unsigned long) phba;
5142 /* EA polling mode timer */
5143 init_timer(&phba->eratt_poll);
5144 phba->eratt_poll.function = lpfc_poll_eratt;
5145 phba->eratt_poll.data = (unsigned long) phba;
5146 /* FCF rediscover timer */
5147 init_timer(&phba->fcf.redisc_wait);
5148 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
5149 phba->fcf.redisc_wait.data = (unsigned long)phba;
5152 * Control structure for handling external multi-buffer mailbox
5153 * command pass-through.
5155 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5156 sizeof(struct lpfc_mbox_ext_buf_ctx));
5157 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5159 phba->max_vpi = LPFC_MAX_VPI;
5161 /* This will be set to correct value after the read_config mbox */
5162 phba->max_vports = 0;
5164 /* Program the default value of vlan_id and fc_map */
5165 phba->valid_vlan = 0;
5166 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5167 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5168 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5171 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5172 * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
5174 if (!phba->sli.ring)
5175 phba->sli.ring = kzalloc(
5176 (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
5177 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5178 if (!phba->sli.ring)
5182 * It doesn't matter what family our adapter is in, we are
5183 * limited to 2 Pages, 512 SGEs, for our SGL.
5184 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5186 max_buf_size = (2 * SLI4_PAGE_SIZE);
5187 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5188 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5191 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5192 * used to create the sg_dma_buf_pool must be dynamically calculated.
5195 if (phba->cfg_enable_bg) {
5197 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5198 * the FCP rsp, and a SGE for each. Sice we have no control
5199 * over how many protection data segments the SCSI Layer
5200 * will hand us (ie: there could be one for every block
5201 * in the IO), we just allocate enough SGEs to accomidate
5202 * our max amount and we need to limit lpfc_sg_seg_cnt to
5203 * minimize the risk of running out.
5205 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5206 sizeof(struct fcp_rsp) + max_buf_size;
5208 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5209 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5211 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5212 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5215 * The scsi_buf for a regular I/O will hold the FCP cmnd,
5216 * the FCP rsp, a SGE for each, and a SGE for up to
5217 * cfg_sg_seg_cnt data segments.
5219 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5220 sizeof(struct fcp_rsp) +
5221 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
5223 /* Total SGEs for scsi_sg_list */
5224 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5226 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
5227 * to post 1 page for the SGL.
5231 /* Initialize the host templates with the updated values. */
5232 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5233 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5235 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ)
5236 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5238 phba->cfg_sg_dma_buf_size =
5239 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5241 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5242 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5243 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5244 phba->cfg_total_seg_cnt);
5246 /* Initialize buffer queue management fields */
5247 hbq_count = lpfc_sli_hbq_count();
5248 for (i = 0; i < hbq_count; ++i)
5249 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5250 INIT_LIST_HEAD(&phba->rb_pend_list);
5251 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5252 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5255 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5257 /* Initialize the Abort scsi buffer list used by driver */
5258 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5259 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5260 /* This abort list used by worker thread */
5261 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
5264 * Initialize driver internal slow-path work queues
5267 /* Driver internel slow-path CQ Event pool */
5268 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5269 /* Response IOCB work queue list */
5270 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5271 /* Asynchronous event CQ Event work queue list */
5272 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5273 /* Fast-path XRI aborted CQ Event work queue list */
5274 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5275 /* Slow-path XRI aborted CQ Event work queue list */
5276 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5277 /* Receive queue CQ Event work queue list */
5278 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5280 /* Initialize extent block lists. */
5281 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5282 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5283 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5284 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5286 /* initialize optic_state to 0xFF */
5287 phba->sli4_hba.lnk_info.optic_state = 0xff;
5289 /* Initialize the driver internal SLI layer lists. */
5290 lpfc_sli_setup(phba);
5291 lpfc_sli_queue_setup(phba);
5293 /* Allocate device driver memory */
5294 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5298 /* IF Type 2 ports get initialized now. */
5299 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5300 LPFC_SLI_INTF_IF_TYPE_2) {
5301 rc = lpfc_pci_function_reset(phba);
5304 phba->temp_sensor_support = 1;
5307 /* Create the bootstrap mailbox command */
5308 rc = lpfc_create_bootstrap_mbox(phba);
5312 /* Set up the host's endian order with the device. */
5313 rc = lpfc_setup_endian_order(phba);
5315 goto out_free_bsmbx;
5317 /* Set up the hba's configuration parameters. */
5318 rc = lpfc_sli4_read_config(phba);
5320 goto out_free_bsmbx;
5321 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
5323 goto out_free_bsmbx;
5325 /* IF Type 0 ports get initialized now. */
5326 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5327 LPFC_SLI_INTF_IF_TYPE_0) {
5328 rc = lpfc_pci_function_reset(phba);
5330 goto out_free_bsmbx;
5333 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5337 goto out_free_bsmbx;
5340 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5341 lpfc_supported_pages(mboxq);
5342 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5344 mqe = &mboxq->u.mqe;
5345 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5346 LPFC_MAX_SUPPORTED_PAGES);
5347 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5348 switch (pn_page[i]) {
5349 case LPFC_SLI4_PARAMETERS:
5350 phba->sli4_hba.pc_sli4_params.supported = 1;
5356 /* Read the port's SLI4 Parameters capabilities if supported. */
5357 if (phba->sli4_hba.pc_sli4_params.supported)
5358 rc = lpfc_pc_sli4_params_get(phba, mboxq);
5360 mempool_free(mboxq, phba->mbox_mem_pool);
5362 goto out_free_bsmbx;
5366 * Get sli4 parameters that override parameters from Port capabilities.
5367 * If this call fails, it isn't critical unless the SLI4 parameters come
5370 rc = lpfc_get_sli4_parameters(phba, mboxq);
5372 if (phba->sli4_hba.extents_in_use &&
5373 phba->sli4_hba.rpi_hdrs_in_use) {
5374 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5375 "2999 Unsupported SLI4 Parameters "
5376 "Extents and RPI headers enabled.\n");
5377 goto out_free_bsmbx;
5380 mempool_free(mboxq, phba->mbox_mem_pool);
5382 /* Verify OAS is supported */
5383 lpfc_sli4_oas_verify(phba);
5387 /* Verify all the SLI4 queues */
5388 rc = lpfc_sli4_queue_verify(phba);
5390 goto out_free_bsmbx;
5392 /* Create driver internal CQE event pool */
5393 rc = lpfc_sli4_cq_event_pool_create(phba);
5395 goto out_free_bsmbx;
5397 /* Initialize sgl lists per host */
5398 lpfc_init_sgl_list(phba);
5400 /* Allocate and initialize active sgl array */
5401 rc = lpfc_init_active_sgl_array(phba);
5403 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5404 "1430 Failed to initialize sgl list.\n");
5405 goto out_destroy_cq_event_pool;
5407 rc = lpfc_sli4_init_rpi_hdrs(phba);
5409 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5410 "1432 Failed to initialize rpi headers.\n");
5411 goto out_free_active_sgl;
5414 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5415 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5416 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5418 if (!phba->fcf.fcf_rr_bmask) {
5419 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5420 "2759 Failed allocate memory for FCF round "
5421 "robin failover bmask\n");
5423 goto out_remove_rpi_hdrs;
5426 phba->sli4_hba.fcp_eq_hdl =
5427 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5428 (fof_vectors + phba->cfg_fcp_io_channel)),
5430 if (!phba->sli4_hba.fcp_eq_hdl) {
5431 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5432 "2572 Failed allocate memory for "
5433 "fast-path per-EQ handle array\n");
5435 goto out_free_fcf_rr_bmask;
5438 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5440 phba->cfg_fcp_io_channel)), GFP_KERNEL);
5441 if (!phba->sli4_hba.msix_entries) {
5442 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5443 "2573 Failed allocate memory for msi-x "
5444 "interrupt vector entries\n");
5446 goto out_free_fcp_eq_hdl;
5449 phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5450 phba->sli4_hba.num_present_cpu),
5452 if (!phba->sli4_hba.cpu_map) {
5453 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5454 "3327 Failed allocate memory for msi-x "
5455 "interrupt vector mapping\n");
5459 if (lpfc_used_cpu == NULL) {
5460 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
5462 if (!lpfc_used_cpu) {
5463 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5464 "3335 Failed allocate memory for msi-x "
5465 "interrupt vector mapping\n");
5466 kfree(phba->sli4_hba.cpu_map);
5470 for (i = 0; i < lpfc_present_cpu; i++)
5471 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
5474 /* Initialize io channels for round robin */
5475 cpup = phba->sli4_hba.cpu_map;
5477 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5478 cpup->channel_id = rc;
5480 if (rc >= phba->cfg_fcp_io_channel)
5485 * Enable sr-iov virtual functions if supported and configured
5486 * through the module parameter.
5488 if (phba->cfg_sriov_nr_virtfn > 0) {
5489 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5490 phba->cfg_sriov_nr_virtfn);
5492 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5493 "3020 Requested number of SR-IOV "
5494 "virtual functions (%d) is not "
5496 phba->cfg_sriov_nr_virtfn);
5497 phba->cfg_sriov_nr_virtfn = 0;
5504 kfree(phba->sli4_hba.msix_entries);
5505 out_free_fcp_eq_hdl:
5506 kfree(phba->sli4_hba.fcp_eq_hdl);
5507 out_free_fcf_rr_bmask:
5508 kfree(phba->fcf.fcf_rr_bmask);
5509 out_remove_rpi_hdrs:
5510 lpfc_sli4_remove_rpi_hdrs(phba);
5511 out_free_active_sgl:
5512 lpfc_free_active_sgl(phba);
5513 out_destroy_cq_event_pool:
5514 lpfc_sli4_cq_event_pool_destroy(phba);
5516 lpfc_destroy_bootstrap_mbox(phba);
5518 lpfc_mem_free(phba);
5523 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5524 * @phba: pointer to lpfc hba data structure.
5526 * This routine is invoked to unset the driver internal resources set up
5527 * specific for supporting the SLI-4 HBA device it attached to.
5530 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5532 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5534 /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5535 kfree(phba->sli4_hba.cpu_map);
5536 phba->sli4_hba.num_present_cpu = 0;
5537 phba->sli4_hba.num_online_cpu = 0;
5538 phba->sli4_hba.curr_disp_cpu = 0;
5540 /* Free memory allocated for msi-x interrupt vector entries */
5541 kfree(phba->sli4_hba.msix_entries);
5543 /* Free memory allocated for fast-path work queue handles */
5544 kfree(phba->sli4_hba.fcp_eq_hdl);
5546 /* Free the allocated rpi headers. */
5547 lpfc_sli4_remove_rpi_hdrs(phba);
5548 lpfc_sli4_remove_rpis(phba);
5550 /* Free eligible FCF index bmask */
5551 kfree(phba->fcf.fcf_rr_bmask);
5553 /* Free the ELS sgl list */
5554 lpfc_free_active_sgl(phba);
5555 lpfc_free_els_sgl_list(phba);
5557 /* Free the completion queue EQ event pool */
5558 lpfc_sli4_cq_event_release_all(phba);
5559 lpfc_sli4_cq_event_pool_destroy(phba);
5561 /* Release resource identifiers. */
5562 lpfc_sli4_dealloc_resource_identifiers(phba);
5564 /* Free the bsmbx region. */
5565 lpfc_destroy_bootstrap_mbox(phba);
5567 /* Free the SLI Layer memory with SLI4 HBAs */
5568 lpfc_mem_free_all(phba);
5570 /* Free the current connect table */
5571 list_for_each_entry_safe(conn_entry, next_conn_entry,
5572 &phba->fcf_conn_rec_list, list) {
5573 list_del_init(&conn_entry->list);
5581 * lpfc_init_api_table_setup - Set up init api function jump table
5582 * @phba: The hba struct for which this call is being executed.
5583 * @dev_grp: The HBA PCI-Device group number.
5585 * This routine sets up the device INIT interface API function jump table
5588 * Returns: 0 - success, -ENODEV - failure.
5591 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5593 phba->lpfc_hba_init_link = lpfc_hba_init_link;
5594 phba->lpfc_hba_down_link = lpfc_hba_down_link;
5595 phba->lpfc_selective_reset = lpfc_selective_reset;
5597 case LPFC_PCI_DEV_LP:
5598 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5599 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5600 phba->lpfc_stop_port = lpfc_stop_port_s3;
5602 case LPFC_PCI_DEV_OC:
5603 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5604 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5605 phba->lpfc_stop_port = lpfc_stop_port_s4;
5608 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5609 "1431 Invalid HBA PCI-device group: 0x%x\n",
5618 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5619 * @phba: pointer to lpfc hba data structure.
5621 * This routine is invoked to set up the driver internal resources before the
5622 * device specific resource setup to support the HBA device it attached to.
5626 * other values - error
5629 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5632 * Driver resources common to all SLI revisions
5634 atomic_set(&phba->fast_event_count, 0);
5635 spin_lock_init(&phba->hbalock);
5637 /* Initialize ndlp management spinlock */
5638 spin_lock_init(&phba->ndlp_lock);
5640 INIT_LIST_HEAD(&phba->port_list);
5641 INIT_LIST_HEAD(&phba->work_list);
5642 init_waitqueue_head(&phba->wait_4_mlo_m_q);
5644 /* Initialize the wait queue head for the kernel thread */
5645 init_waitqueue_head(&phba->work_waitq);
5647 /* Initialize the scsi buffer list used by driver for scsi IO */
5648 spin_lock_init(&phba->scsi_buf_list_get_lock);
5649 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5650 spin_lock_init(&phba->scsi_buf_list_put_lock);
5651 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5653 /* Initialize the fabric iocb list */
5654 INIT_LIST_HEAD(&phba->fabric_iocb_list);
5656 /* Initialize list to save ELS buffers */
5657 INIT_LIST_HEAD(&phba->elsbuf);
5659 /* Initialize FCF connection rec list */
5660 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5662 /* Initialize OAS configuration list */
5663 spin_lock_init(&phba->devicelock);
5664 INIT_LIST_HEAD(&phba->luns);
5670 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5671 * @phba: pointer to lpfc hba data structure.
5673 * This routine is invoked to set up the driver internal resources after the
5674 * device specific resource setup to support the HBA device it attached to.
5678 * other values - error
5681 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5685 /* Startup the kernel thread for this host adapter. */
5686 phba->worker_thread = kthread_run(lpfc_do_work, phba,
5687 "lpfc_worker_%d", phba->brd_no);
5688 if (IS_ERR(phba->worker_thread)) {
5689 error = PTR_ERR(phba->worker_thread);
5697 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5698 * @phba: pointer to lpfc hba data structure.
5700 * This routine is invoked to unset the driver internal resources set up after
5701 * the device specific resource setup for supporting the HBA device it
5705 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5707 /* Stop kernel worker thread */
5708 kthread_stop(phba->worker_thread);
5712 * lpfc_free_iocb_list - Free iocb list.
5713 * @phba: pointer to lpfc hba data structure.
5715 * This routine is invoked to free the driver's IOCB list and memory.
5718 lpfc_free_iocb_list(struct lpfc_hba *phba)
5720 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5722 spin_lock_irq(&phba->hbalock);
5723 list_for_each_entry_safe(iocbq_entry, iocbq_next,
5724 &phba->lpfc_iocb_list, list) {
5725 list_del(&iocbq_entry->list);
5727 phba->total_iocbq_bufs--;
5729 spin_unlock_irq(&phba->hbalock);
5735 * lpfc_init_iocb_list - Allocate and initialize iocb list.
5736 * @phba: pointer to lpfc hba data structure.
5738 * This routine is invoked to allocate and initizlize the driver's IOCB
5739 * list and set up the IOCB tag array accordingly.
5743 * other values - error
5746 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5748 struct lpfc_iocbq *iocbq_entry = NULL;
5752 /* Initialize and populate the iocb list per host. */
5753 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5754 for (i = 0; i < iocb_count; i++) {
5755 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5756 if (iocbq_entry == NULL) {
5757 printk(KERN_ERR "%s: only allocated %d iocbs of "
5758 "expected %d count. Unloading driver.\n",
5759 __func__, i, LPFC_IOCB_LIST_CNT);
5760 goto out_free_iocbq;
5763 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5766 printk(KERN_ERR "%s: failed to allocate IOTAG. "
5767 "Unloading driver.\n", __func__);
5768 goto out_free_iocbq;
5770 iocbq_entry->sli4_lxritag = NO_XRI;
5771 iocbq_entry->sli4_xritag = NO_XRI;
5773 spin_lock_irq(&phba->hbalock);
5774 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5775 phba->total_iocbq_bufs++;
5776 spin_unlock_irq(&phba->hbalock);
5782 lpfc_free_iocb_list(phba);
5788 * lpfc_free_sgl_list - Free a given sgl list.
5789 * @phba: pointer to lpfc hba data structure.
5790 * @sglq_list: pointer to the head of sgl list.
5792 * This routine is invoked to free a give sgl list and memory.
5795 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5797 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5799 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5800 list_del(&sglq_entry->list);
5801 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5807 * lpfc_free_els_sgl_list - Free els sgl list.
5808 * @phba: pointer to lpfc hba data structure.
5810 * This routine is invoked to free the driver's els sgl list and memory.
5813 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5815 LIST_HEAD(sglq_list);
5816 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
5818 /* Retrieve all els sgls from driver list */
5819 spin_lock_irq(&phba->hbalock);
5820 spin_lock(&pring->ring_lock);
5821 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5822 spin_unlock(&pring->ring_lock);
5823 spin_unlock_irq(&phba->hbalock);
5825 /* Now free the sgl list */
5826 lpfc_free_sgl_list(phba, &sglq_list);
5830 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5831 * @phba: pointer to lpfc hba data structure.
5833 * This routine is invoked to allocate the driver's active sgl memory.
5834 * This array will hold the sglq_entry's for active IOs.
5837 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5840 size = sizeof(struct lpfc_sglq *);
5841 size *= phba->sli4_hba.max_cfg_param.max_xri;
5843 phba->sli4_hba.lpfc_sglq_active_list =
5844 kzalloc(size, GFP_KERNEL);
5845 if (!phba->sli4_hba.lpfc_sglq_active_list)
5851 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5852 * @phba: pointer to lpfc hba data structure.
5854 * This routine is invoked to walk through the array of active sglq entries
5855 * and free all of the resources.
5856 * This is just a place holder for now.
5859 lpfc_free_active_sgl(struct lpfc_hba *phba)
5861 kfree(phba->sli4_hba.lpfc_sglq_active_list);
5865 * lpfc_init_sgl_list - Allocate and initialize sgl list.
5866 * @phba: pointer to lpfc hba data structure.
5868 * This routine is invoked to allocate and initizlize the driver's sgl
5869 * list and set up the sgl xritag tag array accordingly.
5873 lpfc_init_sgl_list(struct lpfc_hba *phba)
5875 /* Initialize and populate the sglq list per host/VF. */
5876 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5877 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5879 /* els xri-sgl book keeping */
5880 phba->sli4_hba.els_xri_cnt = 0;
5882 /* scsi xri-buffer book keeping */
5883 phba->sli4_hba.scsi_xri_cnt = 0;
5887 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5888 * @phba: pointer to lpfc hba data structure.
5890 * This routine is invoked to post rpi header templates to the
5891 * port for those SLI4 ports that do not support extents. This routine
5892 * posts a PAGE_SIZE memory region to the port to hold up to
5893 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
5894 * and should be called only when interrupts are disabled.
5898 * -ERROR - otherwise.
5901 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5904 struct lpfc_rpi_hdr *rpi_hdr;
5906 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5907 if (!phba->sli4_hba.rpi_hdrs_in_use)
5909 if (phba->sli4_hba.extents_in_use)
5912 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5914 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5915 "0391 Error during rpi post operation\n");
5916 lpfc_sli4_remove_rpis(phba);
5924 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5925 * @phba: pointer to lpfc hba data structure.
5927 * This routine is invoked to allocate a single 4KB memory region to
5928 * support rpis and stores them in the phba. This single region
5929 * provides support for up to 64 rpis. The region is used globally
5933 * A valid rpi hdr on success.
5934 * A NULL pointer on any failure.
5936 struct lpfc_rpi_hdr *
5937 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5939 uint16_t rpi_limit, curr_rpi_range;
5940 struct lpfc_dmabuf *dmabuf;
5941 struct lpfc_rpi_hdr *rpi_hdr;
5945 * If the SLI4 port supports extents, posting the rpi header isn't
5946 * required. Set the expected maximum count and let the actual value
5947 * get set when extents are fully allocated.
5949 if (!phba->sli4_hba.rpi_hdrs_in_use)
5951 if (phba->sli4_hba.extents_in_use)
5954 /* The limit on the logical index is just the max_rpi count. */
5955 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5956 phba->sli4_hba.max_cfg_param.max_rpi - 1;
5958 spin_lock_irq(&phba->hbalock);
5960 * Establish the starting RPI in this header block. The starting
5961 * rpi is normalized to a zero base because the physical rpi is
5964 curr_rpi_range = phba->sli4_hba.next_rpi;
5965 spin_unlock_irq(&phba->hbalock);
5968 * The port has a limited number of rpis. The increment here
5969 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5970 * and to allow the full max_rpi range per port.
5972 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5973 rpi_count = rpi_limit - curr_rpi_range;
5975 rpi_count = LPFC_RPI_HDR_COUNT;
5980 * First allocate the protocol header region for the port. The
5981 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5983 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5987 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
5988 LPFC_HDR_TEMPLATE_SIZE,
5989 &dmabuf->phys, GFP_KERNEL);
5990 if (!dmabuf->virt) {
5992 goto err_free_dmabuf;
5995 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5997 goto err_free_coherent;
6000 /* Save the rpi header data for cleanup later. */
6001 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
6003 goto err_free_coherent;
6005 rpi_hdr->dmabuf = dmabuf;
6006 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6007 rpi_hdr->page_count = 1;
6008 spin_lock_irq(&phba->hbalock);
6010 /* The rpi_hdr stores the logical index only. */
6011 rpi_hdr->start_rpi = curr_rpi_range;
6012 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6015 * The next_rpi stores the next logical module-64 rpi value used
6016 * to post physical rpis in subsequent rpi postings.
6018 phba->sli4_hba.next_rpi += rpi_count;
6019 spin_unlock_irq(&phba->hbalock);
6023 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6024 dmabuf->virt, dmabuf->phys);
6031 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6032 * @phba: pointer to lpfc hba data structure.
6034 * This routine is invoked to remove all memory resources allocated
6035 * to support rpis for SLI4 ports not supporting extents. This routine
6036 * presumes the caller has released all rpis consumed by fabric or port
6037 * logins and is prepared to have the header pages removed.
6040 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6042 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6044 if (!phba->sli4_hba.rpi_hdrs_in_use)
6047 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6048 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6049 list_del(&rpi_hdr->list);
6050 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6051 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6052 kfree(rpi_hdr->dmabuf);
6056 /* There are no rpis available to the port now. */
6057 phba->sli4_hba.next_rpi = 0;
6061 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6062 * @pdev: pointer to pci device data structure.
6064 * This routine is invoked to allocate the driver hba data structure for an
6065 * HBA device. If the allocation is successful, the phba reference to the
6066 * PCI device data structure is set.
6069 * pointer to @phba - successful
6072 static struct lpfc_hba *
6073 lpfc_hba_alloc(struct pci_dev *pdev)
6075 struct lpfc_hba *phba;
6077 /* Allocate memory for HBA structure */
6078 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6080 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6084 /* Set reference to PCI device in HBA structure */
6085 phba->pcidev = pdev;
6087 /* Assign an unused board number */
6088 phba->brd_no = lpfc_get_instance();
6089 if (phba->brd_no < 0) {
6094 spin_lock_init(&phba->ct_ev_lock);
6095 INIT_LIST_HEAD(&phba->ct_ev_waiters);
6101 * lpfc_hba_free - Free driver hba data structure with a device.
6102 * @phba: pointer to lpfc hba data structure.
6104 * This routine is invoked to free the driver hba data structure with an
6108 lpfc_hba_free(struct lpfc_hba *phba)
6110 /* Release the driver assigned board number */
6111 idr_remove(&lpfc_hba_index, phba->brd_no);
6113 /* Free memory allocated with sli rings */
6114 kfree(phba->sli.ring);
6115 phba->sli.ring = NULL;
6122 * lpfc_create_shost - Create hba physical port with associated scsi host.
6123 * @phba: pointer to lpfc hba data structure.
6125 * This routine is invoked to create HBA physical port and associate a SCSI
6130 * other values - error
6133 lpfc_create_shost(struct lpfc_hba *phba)
6135 struct lpfc_vport *vport;
6136 struct Scsi_Host *shost;
6138 /* Initialize HBA FC structure */
6139 phba->fc_edtov = FF_DEF_EDTOV;
6140 phba->fc_ratov = FF_DEF_RATOV;
6141 phba->fc_altov = FF_DEF_ALTOV;
6142 phba->fc_arbtov = FF_DEF_ARBTOV;
6144 atomic_set(&phba->sdev_cnt, 0);
6145 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6149 shost = lpfc_shost_from_vport(vport);
6150 phba->pport = vport;
6151 lpfc_debugfs_initialize(vport);
6152 /* Put reference to SCSI host to driver's device private data */
6153 pci_set_drvdata(phba->pcidev, shost);
6156 * At this point we are fully registered with PSA. In addition,
6157 * any initial discovery should be completed.
6159 vport->load_flag |= FC_ALLOW_FDMI;
6160 if (phba->cfg_fdmi_on > LPFC_FDMI_NO_SUPPORT) {
6162 /* Setup appropriate attribute masks */
6163 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
6164 if (phba->cfg_fdmi_on == LPFC_FDMI_SMART_SAN)
6165 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
6167 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
6173 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6174 * @phba: pointer to lpfc hba data structure.
6176 * This routine is invoked to destroy HBA physical port and the associated
6180 lpfc_destroy_shost(struct lpfc_hba *phba)
6182 struct lpfc_vport *vport = phba->pport;
6184 /* Destroy physical port that associated with the SCSI host */
6185 destroy_port(vport);
6191 * lpfc_setup_bg - Setup Block guard structures and debug areas.
6192 * @phba: pointer to lpfc hba data structure.
6193 * @shost: the shost to be used to detect Block guard settings.
6195 * This routine sets up the local Block guard protocol settings for @shost.
6196 * This routine also allocates memory for debugging bg buffers.
6199 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6205 if (lpfc_prot_mask && lpfc_prot_guard) {
6206 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6207 "1478 Registering BlockGuard with the "
6210 old_mask = lpfc_prot_mask;
6211 old_guard = lpfc_prot_guard;
6213 /* Only allow supported values */
6214 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6215 SHOST_DIX_TYPE0_PROTECTION |
6216 SHOST_DIX_TYPE1_PROTECTION);
6217 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
6219 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6220 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6221 lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6223 if (lpfc_prot_mask && lpfc_prot_guard) {
6224 if ((old_mask != lpfc_prot_mask) ||
6225 (old_guard != lpfc_prot_guard))
6226 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6227 "1475 Registering BlockGuard with the "
6228 "SCSI layer: mask %d guard %d\n",
6229 lpfc_prot_mask, lpfc_prot_guard);
6231 scsi_host_set_prot(shost, lpfc_prot_mask);
6232 scsi_host_set_guard(shost, lpfc_prot_guard);
6234 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6235 "1479 Not Registering BlockGuard with the SCSI "
6236 "layer, Bad protection parameters: %d %d\n",
6237 old_mask, old_guard);
6240 if (!_dump_buf_data) {
6242 spin_lock_init(&_dump_buf_lock);
6244 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6245 if (_dump_buf_data) {
6246 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6247 "9043 BLKGRD: allocated %d pages for "
6248 "_dump_buf_data at 0x%p\n",
6249 (1 << pagecnt), _dump_buf_data);
6250 _dump_buf_data_order = pagecnt;
6251 memset(_dump_buf_data, 0,
6252 ((1 << PAGE_SHIFT) << pagecnt));
6257 if (!_dump_buf_data_order)
6258 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6259 "9044 BLKGRD: ERROR unable to allocate "
6260 "memory for hexdump\n");
6262 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6263 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
6264 "\n", _dump_buf_data);
6265 if (!_dump_buf_dif) {
6268 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6269 if (_dump_buf_dif) {
6270 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6271 "9046 BLKGRD: allocated %d pages for "
6272 "_dump_buf_dif at 0x%p\n",
6273 (1 << pagecnt), _dump_buf_dif);
6274 _dump_buf_dif_order = pagecnt;
6275 memset(_dump_buf_dif, 0,
6276 ((1 << PAGE_SHIFT) << pagecnt));
6281 if (!_dump_buf_dif_order)
6282 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6283 "9047 BLKGRD: ERROR unable to allocate "
6284 "memory for hexdump\n");
6286 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6287 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6292 * lpfc_post_init_setup - Perform necessary device post initialization setup.
6293 * @phba: pointer to lpfc hba data structure.
6295 * This routine is invoked to perform all the necessary post initialization
6296 * setup for the device.
6299 lpfc_post_init_setup(struct lpfc_hba *phba)
6301 struct Scsi_Host *shost;
6302 struct lpfc_adapter_event_header adapter_event;
6304 /* Get the default values for Model Name and Description */
6305 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6308 * hba setup may have changed the hba_queue_depth so we need to
6309 * adjust the value of can_queue.
6311 shost = pci_get_drvdata(phba->pcidev);
6312 shost->can_queue = phba->cfg_hba_queue_depth - 10;
6313 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6314 lpfc_setup_bg(phba, shost);
6316 lpfc_host_attrib_init(shost);
6318 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6319 spin_lock_irq(shost->host_lock);
6320 lpfc_poll_start_timer(phba);
6321 spin_unlock_irq(shost->host_lock);
6324 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6325 "0428 Perform SCSI scan\n");
6326 /* Send board arrival event to upper layer */
6327 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6328 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6329 fc_host_post_vendor_event(shost, fc_get_event_number(),
6330 sizeof(adapter_event),
6331 (char *) &adapter_event,
6337 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6338 * @phba: pointer to lpfc hba data structure.
6340 * This routine is invoked to set up the PCI device memory space for device
6341 * with SLI-3 interface spec.
6345 * other values - error
6348 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6350 struct pci_dev *pdev;
6351 unsigned long bar0map_len, bar2map_len;
6354 int error = -ENODEV;
6356 /* Obtain PCI device reference */
6360 pdev = phba->pcidev;
6362 /* Set the device DMA mask size */
6363 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6364 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6365 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6366 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6371 /* Get the bus address of Bar0 and Bar2 and the number of bytes
6372 * required by each mapping.
6374 phba->pci_bar0_map = pci_resource_start(pdev, 0);
6375 bar0map_len = pci_resource_len(pdev, 0);
6377 phba->pci_bar2_map = pci_resource_start(pdev, 2);
6378 bar2map_len = pci_resource_len(pdev, 2);
6380 /* Map HBA SLIM to a kernel virtual address. */
6381 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6382 if (!phba->slim_memmap_p) {
6383 dev_printk(KERN_ERR, &pdev->dev,
6384 "ioremap failed for SLIM memory.\n");
6388 /* Map HBA Control Registers to a kernel virtual address. */
6389 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6390 if (!phba->ctrl_regs_memmap_p) {
6391 dev_printk(KERN_ERR, &pdev->dev,
6392 "ioremap failed for HBA control registers.\n");
6393 goto out_iounmap_slim;
6396 /* Allocate memory for SLI-2 structures */
6397 phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6398 &phba->slim2p.phys, GFP_KERNEL);
6399 if (!phba->slim2p.virt)
6402 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6403 phba->mbox_ext = (phba->slim2p.virt +
6404 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6405 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6406 phba->IOCBs = (phba->slim2p.virt +
6407 offsetof(struct lpfc_sli2_slim, IOCBs));
6409 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6410 lpfc_sli_hbq_size(),
6411 &phba->hbqslimp.phys,
6413 if (!phba->hbqslimp.virt)
6416 hbq_count = lpfc_sli_hbq_count();
6417 ptr = phba->hbqslimp.virt;
6418 for (i = 0; i < hbq_count; ++i) {
6419 phba->hbqs[i].hbq_virt = ptr;
6420 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6421 ptr += (lpfc_hbq_defs[i]->entry_count *
6422 sizeof(struct lpfc_hbq_entry));
6424 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6425 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6427 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6429 INIT_LIST_HEAD(&phba->rb_pend_list);
6431 phba->MBslimaddr = phba->slim_memmap_p;
6432 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6433 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6434 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6435 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6440 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6441 phba->slim2p.virt, phba->slim2p.phys);
6443 iounmap(phba->ctrl_regs_memmap_p);
6445 iounmap(phba->slim_memmap_p);
6451 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6452 * @phba: pointer to lpfc hba data structure.
6454 * This routine is invoked to unset the PCI device memory space for device
6455 * with SLI-3 interface spec.
6458 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6460 struct pci_dev *pdev;
6462 /* Obtain PCI device reference */
6466 pdev = phba->pcidev;
6468 /* Free coherent DMA memory allocated */
6469 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6470 phba->hbqslimp.virt, phba->hbqslimp.phys);
6471 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6472 phba->slim2p.virt, phba->slim2p.phys);
6474 /* I/O memory unmap */
6475 iounmap(phba->ctrl_regs_memmap_p);
6476 iounmap(phba->slim_memmap_p);
6482 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6483 * @phba: pointer to lpfc hba data structure.
6485 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6486 * done and check status.
6488 * Return 0 if successful, otherwise -ENODEV.
6491 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6493 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6494 struct lpfc_register reg_data;
6495 int i, port_error = 0;
6498 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6499 memset(®_data, 0, sizeof(reg_data));
6500 if (!phba->sli4_hba.PSMPHRregaddr)
6503 /* Wait up to 30 seconds for the SLI Port POST done and ready */
6504 for (i = 0; i < 3000; i++) {
6505 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6506 &portsmphr_reg.word0) ||
6507 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6508 /* Port has a fatal POST error, break out */
6509 port_error = -ENODEV;
6512 if (LPFC_POST_STAGE_PORT_READY ==
6513 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6519 * If there was a port error during POST, then don't proceed with
6520 * other register reads as the data may not be valid. Just exit.
6523 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6524 "1408 Port Failed POST - portsmphr=0x%x, "
6525 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6526 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6527 portsmphr_reg.word0,
6528 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6529 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6530 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6531 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6532 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6533 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6534 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6535 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6537 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6538 "2534 Device Info: SLIFamily=0x%x, "
6539 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6540 "SLIHint_2=0x%x, FT=0x%x\n",
6541 bf_get(lpfc_sli_intf_sli_family,
6542 &phba->sli4_hba.sli_intf),
6543 bf_get(lpfc_sli_intf_slirev,
6544 &phba->sli4_hba.sli_intf),
6545 bf_get(lpfc_sli_intf_if_type,
6546 &phba->sli4_hba.sli_intf),
6547 bf_get(lpfc_sli_intf_sli_hint1,
6548 &phba->sli4_hba.sli_intf),
6549 bf_get(lpfc_sli_intf_sli_hint2,
6550 &phba->sli4_hba.sli_intf),
6551 bf_get(lpfc_sli_intf_func_type,
6552 &phba->sli4_hba.sli_intf));
6554 * Check for other Port errors during the initialization
6555 * process. Fail the load if the port did not come up
6558 if_type = bf_get(lpfc_sli_intf_if_type,
6559 &phba->sli4_hba.sli_intf);
6561 case LPFC_SLI_INTF_IF_TYPE_0:
6562 phba->sli4_hba.ue_mask_lo =
6563 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6564 phba->sli4_hba.ue_mask_hi =
6565 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6567 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6569 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6570 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6571 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6572 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6573 "1422 Unrecoverable Error "
6574 "Detected during POST "
6575 "uerr_lo_reg=0x%x, "
6576 "uerr_hi_reg=0x%x, "
6577 "ue_mask_lo_reg=0x%x, "
6578 "ue_mask_hi_reg=0x%x\n",
6581 phba->sli4_hba.ue_mask_lo,
6582 phba->sli4_hba.ue_mask_hi);
6583 port_error = -ENODEV;
6586 case LPFC_SLI_INTF_IF_TYPE_2:
6587 /* Final checks. The port status should be clean. */
6588 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6590 (bf_get(lpfc_sliport_status_err, ®_data) &&
6591 !bf_get(lpfc_sliport_status_rn, ®_data))) {
6592 phba->work_status[0] =
6593 readl(phba->sli4_hba.u.if_type2.
6595 phba->work_status[1] =
6596 readl(phba->sli4_hba.u.if_type2.
6598 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6599 "2888 Unrecoverable port error "
6600 "following POST: port status reg "
6601 "0x%x, port_smphr reg 0x%x, "
6602 "error 1=0x%x, error 2=0x%x\n",
6604 portsmphr_reg.word0,
6605 phba->work_status[0],
6606 phba->work_status[1]);
6607 port_error = -ENODEV;
6610 case LPFC_SLI_INTF_IF_TYPE_1:
6619 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6620 * @phba: pointer to lpfc hba data structure.
6621 * @if_type: The SLI4 interface type getting configured.
6623 * This routine is invoked to set up SLI4 BAR0 PCI config space register
6627 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6630 case LPFC_SLI_INTF_IF_TYPE_0:
6631 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6632 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6633 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6634 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6635 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6636 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6637 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6638 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6639 phba->sli4_hba.SLIINTFregaddr =
6640 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6642 case LPFC_SLI_INTF_IF_TYPE_2:
6643 phba->sli4_hba.u.if_type2.ERR1regaddr =
6644 phba->sli4_hba.conf_regs_memmap_p +
6645 LPFC_CTL_PORT_ER1_OFFSET;
6646 phba->sli4_hba.u.if_type2.ERR2regaddr =
6647 phba->sli4_hba.conf_regs_memmap_p +
6648 LPFC_CTL_PORT_ER2_OFFSET;
6649 phba->sli4_hba.u.if_type2.CTRLregaddr =
6650 phba->sli4_hba.conf_regs_memmap_p +
6651 LPFC_CTL_PORT_CTL_OFFSET;
6652 phba->sli4_hba.u.if_type2.STATUSregaddr =
6653 phba->sli4_hba.conf_regs_memmap_p +
6654 LPFC_CTL_PORT_STA_OFFSET;
6655 phba->sli4_hba.SLIINTFregaddr =
6656 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6657 phba->sli4_hba.PSMPHRregaddr =
6658 phba->sli4_hba.conf_regs_memmap_p +
6659 LPFC_CTL_PORT_SEM_OFFSET;
6660 phba->sli4_hba.RQDBregaddr =
6661 phba->sli4_hba.conf_regs_memmap_p +
6662 LPFC_ULP0_RQ_DOORBELL;
6663 phba->sli4_hba.WQDBregaddr =
6664 phba->sli4_hba.conf_regs_memmap_p +
6665 LPFC_ULP0_WQ_DOORBELL;
6666 phba->sli4_hba.EQCQDBregaddr =
6667 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6668 phba->sli4_hba.MQDBregaddr =
6669 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6670 phba->sli4_hba.BMBXregaddr =
6671 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6673 case LPFC_SLI_INTF_IF_TYPE_1:
6675 dev_printk(KERN_ERR, &phba->pcidev->dev,
6676 "FATAL - unsupported SLI4 interface type - %d\n",
6683 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6684 * @phba: pointer to lpfc hba data structure.
6686 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6690 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6692 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6693 LPFC_SLIPORT_IF0_SMPHR;
6694 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6696 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6698 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6703 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6704 * @phba: pointer to lpfc hba data structure.
6705 * @vf: virtual function number
6707 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6708 * based on the given viftual function number, @vf.
6710 * Return 0 if successful, otherwise -ENODEV.
6713 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6715 if (vf > LPFC_VIR_FUNC_MAX)
6718 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6719 vf * LPFC_VFR_PAGE_SIZE +
6720 LPFC_ULP0_RQ_DOORBELL);
6721 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6722 vf * LPFC_VFR_PAGE_SIZE +
6723 LPFC_ULP0_WQ_DOORBELL);
6724 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6725 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6726 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6727 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6728 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6729 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6734 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6735 * @phba: pointer to lpfc hba data structure.
6737 * This routine is invoked to create the bootstrap mailbox
6738 * region consistent with the SLI-4 interface spec. This
6739 * routine allocates all memory necessary to communicate
6740 * mailbox commands to the port and sets up all alignment
6741 * needs. No locks are expected to be held when calling
6746 * -ENOMEM - could not allocated memory.
6749 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6752 struct lpfc_dmabuf *dmabuf;
6753 struct dma_address *dma_address;
6757 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6762 * The bootstrap mailbox region is comprised of 2 parts
6763 * plus an alignment restriction of 16 bytes.
6765 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6766 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
6767 &dmabuf->phys, GFP_KERNEL);
6768 if (!dmabuf->virt) {
6774 * Initialize the bootstrap mailbox pointers now so that the register
6775 * operations are simple later. The mailbox dma address is required
6776 * to be 16-byte aligned. Also align the virtual memory as each
6777 * maibox is copied into the bmbx mailbox region before issuing the
6778 * command to the port.
6780 phba->sli4_hba.bmbx.dmabuf = dmabuf;
6781 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6783 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6784 LPFC_ALIGN_16_BYTE);
6785 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6786 LPFC_ALIGN_16_BYTE);
6789 * Set the high and low physical addresses now. The SLI4 alignment
6790 * requirement is 16 bytes and the mailbox is posted to the port
6791 * as two 30-bit addresses. The other data is a bit marking whether
6792 * the 30-bit address is the high or low address.
6793 * Upcast bmbx aphys to 64bits so shift instruction compiles
6794 * clean on 32 bit machines.
6796 dma_address = &phba->sli4_hba.bmbx.dma_address;
6797 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6798 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6799 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6800 LPFC_BMBX_BIT1_ADDR_HI);
6802 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6803 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6804 LPFC_BMBX_BIT1_ADDR_LO);
6809 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6810 * @phba: pointer to lpfc hba data structure.
6812 * This routine is invoked to teardown the bootstrap mailbox
6813 * region and release all host resources. This routine requires
6814 * the caller to ensure all mailbox commands recovered, no
6815 * additional mailbox comands are sent, and interrupts are disabled
6816 * before calling this routine.
6820 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6822 dma_free_coherent(&phba->pcidev->dev,
6823 phba->sli4_hba.bmbx.bmbx_size,
6824 phba->sli4_hba.bmbx.dmabuf->virt,
6825 phba->sli4_hba.bmbx.dmabuf->phys);
6827 kfree(phba->sli4_hba.bmbx.dmabuf);
6828 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6832 * lpfc_sli4_read_config - Get the config parameters.
6833 * @phba: pointer to lpfc hba data structure.
6835 * This routine is invoked to read the configuration parameters from the HBA.
6836 * The configuration parameters are used to set the base and maximum values
6837 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6838 * allocation for the port.
6842 * -ENOMEM - No available memory
6843 * -EIO - The mailbox failed to complete successfully.
6846 lpfc_sli4_read_config(struct lpfc_hba *phba)
6849 struct lpfc_mbx_read_config *rd_config;
6850 union lpfc_sli4_cfg_shdr *shdr;
6851 uint32_t shdr_status, shdr_add_status;
6852 struct lpfc_mbx_get_func_cfg *get_func_cfg;
6853 struct lpfc_rsrc_desc_fcfcoe *desc;
6855 int length, i, rc = 0, rc2;
6857 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6859 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6860 "2011 Unable to allocate memory for issuing "
6861 "SLI_CONFIG_SPECIAL mailbox command\n");
6865 lpfc_read_config(phba, pmb);
6867 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6868 if (rc != MBX_SUCCESS) {
6869 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6870 "2012 Mailbox failed , mbxCmd x%x "
6871 "READ_CONFIG, mbxStatus x%x\n",
6872 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6873 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6876 rd_config = &pmb->u.mqe.un.rd_config;
6877 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6878 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6879 phba->sli4_hba.lnk_info.lnk_tp =
6880 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6881 phba->sli4_hba.lnk_info.lnk_no =
6882 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6883 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6884 "3081 lnk_type:%d, lnk_numb:%d\n",
6885 phba->sli4_hba.lnk_info.lnk_tp,
6886 phba->sli4_hba.lnk_info.lnk_no);
6888 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6889 "3082 Mailbox (x%x) returned ldv:x0\n",
6890 bf_get(lpfc_mqe_command, &pmb->u.mqe));
6891 phba->sli4_hba.extents_in_use =
6892 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6893 phba->sli4_hba.max_cfg_param.max_xri =
6894 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6895 phba->sli4_hba.max_cfg_param.xri_base =
6896 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6897 phba->sli4_hba.max_cfg_param.max_vpi =
6898 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6899 phba->sli4_hba.max_cfg_param.vpi_base =
6900 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6901 phba->sli4_hba.max_cfg_param.max_rpi =
6902 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6903 phba->sli4_hba.max_cfg_param.rpi_base =
6904 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6905 phba->sli4_hba.max_cfg_param.max_vfi =
6906 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6907 phba->sli4_hba.max_cfg_param.vfi_base =
6908 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6909 phba->sli4_hba.max_cfg_param.max_fcfi =
6910 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6911 phba->sli4_hba.max_cfg_param.max_eq =
6912 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6913 phba->sli4_hba.max_cfg_param.max_rq =
6914 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6915 phba->sli4_hba.max_cfg_param.max_wq =
6916 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6917 phba->sli4_hba.max_cfg_param.max_cq =
6918 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6919 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6920 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6921 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6922 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6923 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6924 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6925 phba->max_vports = phba->max_vpi;
6926 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6927 "2003 cfg params Extents? %d "
6933 phba->sli4_hba.extents_in_use,
6934 phba->sli4_hba.max_cfg_param.xri_base,
6935 phba->sli4_hba.max_cfg_param.max_xri,
6936 phba->sli4_hba.max_cfg_param.vpi_base,
6937 phba->sli4_hba.max_cfg_param.max_vpi,
6938 phba->sli4_hba.max_cfg_param.vfi_base,
6939 phba->sli4_hba.max_cfg_param.max_vfi,
6940 phba->sli4_hba.max_cfg_param.rpi_base,
6941 phba->sli4_hba.max_cfg_param.max_rpi,
6942 phba->sli4_hba.max_cfg_param.max_fcfi);
6948 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
6949 length = phba->sli4_hba.max_cfg_param.max_xri -
6950 lpfc_sli4_get_els_iocb_cnt(phba);
6951 if (phba->cfg_hba_queue_depth > length) {
6952 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6953 "3361 HBA queue depth changed from %d to %d\n",
6954 phba->cfg_hba_queue_depth, length);
6955 phba->cfg_hba_queue_depth = length;
6958 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6959 LPFC_SLI_INTF_IF_TYPE_2)
6962 /* get the pf# and vf# for SLI4 if_type 2 port */
6963 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6964 sizeof(struct lpfc_sli4_cfg_mhdr));
6965 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6966 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6967 length, LPFC_SLI4_MBX_EMBED);
6969 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6970 shdr = (union lpfc_sli4_cfg_shdr *)
6971 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6972 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6973 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6974 if (rc2 || shdr_status || shdr_add_status) {
6975 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6976 "3026 Mailbox failed , mbxCmd x%x "
6977 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6978 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6979 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6983 /* search for fc_fcoe resrouce descriptor */
6984 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6986 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6987 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6988 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6989 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6990 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6991 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6994 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6995 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6996 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6997 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6998 phba->sli4_hba.iov.pf_number =
6999 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
7000 phba->sli4_hba.iov.vf_number =
7001 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
7006 if (i < LPFC_RSRC_DESC_MAX_NUM)
7007 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7008 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
7009 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
7010 phba->sli4_hba.iov.vf_number);
7012 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7013 "3028 GET_FUNCTION_CONFIG: failed to find "
7014 "Resrouce Descriptor:x%x\n",
7015 LPFC_RSRC_DESC_TYPE_FCFCOE);
7018 mempool_free(pmb, phba->mbox_mem_pool);
7023 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
7024 * @phba: pointer to lpfc hba data structure.
7026 * This routine is invoked to setup the port-side endian order when
7027 * the port if_type is 0. This routine has no function for other
7032 * -ENOMEM - No available memory
7033 * -EIO - The mailbox failed to complete successfully.
7036 lpfc_setup_endian_order(struct lpfc_hba *phba)
7038 LPFC_MBOXQ_t *mboxq;
7039 uint32_t if_type, rc = 0;
7040 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7041 HOST_ENDIAN_HIGH_WORD1};
7043 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7045 case LPFC_SLI_INTF_IF_TYPE_0:
7046 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7049 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7050 "0492 Unable to allocate memory for "
7051 "issuing SLI_CONFIG_SPECIAL mailbox "
7057 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
7058 * two words to contain special data values and no other data.
7060 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
7061 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
7062 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7063 if (rc != MBX_SUCCESS) {
7064 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7065 "0493 SLI_CONFIG_SPECIAL mailbox "
7066 "failed with status x%x\n",
7070 mempool_free(mboxq, phba->mbox_mem_pool);
7072 case LPFC_SLI_INTF_IF_TYPE_2:
7073 case LPFC_SLI_INTF_IF_TYPE_1:
7081 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
7082 * @phba: pointer to lpfc hba data structure.
7084 * This routine is invoked to check the user settable queue counts for EQs and
7085 * CQs. after this routine is called the counts will be set to valid values that
7086 * adhere to the constraints of the system's interrupt vectors and the port's
7091 * -ENOMEM - No available memory
7094 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
7096 int cfg_fcp_io_channel;
7099 int fof_vectors = phba->cfg_fof ? 1 : 0;
7102 * Sanity check for configured queue parameters against the run-time
7106 /* Sanity check on HBA EQ parameters */
7107 cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
7109 /* It doesn't make sense to have more io channels then online CPUs */
7110 for_each_present_cpu(cpu) {
7111 if (cpu_online(cpu))
7114 phba->sli4_hba.num_online_cpu = i;
7115 phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7116 phba->sli4_hba.curr_disp_cpu = 0;
7118 if (i < cfg_fcp_io_channel) {
7119 lpfc_printf_log(phba,
7121 "3188 Reducing IO channels to match number of "
7122 "online CPUs: from %d to %d\n",
7123 cfg_fcp_io_channel, i);
7124 cfg_fcp_io_channel = i;
7127 if (cfg_fcp_io_channel + fof_vectors >
7128 phba->sli4_hba.max_cfg_param.max_eq) {
7129 if (phba->sli4_hba.max_cfg_param.max_eq <
7130 LPFC_FCP_IO_CHAN_MIN) {
7131 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7132 "2574 Not enough EQs (%d) from the "
7133 "pci function for supporting FCP "
7135 phba->sli4_hba.max_cfg_param.max_eq,
7136 phba->cfg_fcp_io_channel);
7139 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7140 "2575 Reducing IO channels to match number of "
7141 "available EQs: from %d to %d\n",
7143 phba->sli4_hba.max_cfg_param.max_eq);
7144 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq -
7148 /* The actual number of FCP event queues adopted */
7149 phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
7151 /* Get EQ depth from module parameter, fake the default for now */
7152 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7153 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7155 /* Get CQ depth from module parameter, fake the default for now */
7156 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7157 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7165 * lpfc_sli4_queue_create - Create all the SLI4 queues
7166 * @phba: pointer to lpfc hba data structure.
7168 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
7169 * operation. For each SLI4 queue type, the parameters such as queue entry
7170 * count (queue depth) shall be taken from the module parameter. For now,
7171 * we just use some constant number as place holder.
7175 * -ENOMEM - No availble memory
7176 * -EIO - The mailbox failed to complete successfully.
7179 lpfc_sli4_queue_create(struct lpfc_hba *phba)
7181 struct lpfc_queue *qdesc;
7185 * Create HBA Record arrays.
7187 if (!phba->cfg_fcp_io_channel)
7190 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
7191 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
7192 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
7193 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
7194 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
7195 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
7197 phba->sli4_hba.hba_eq = kzalloc((sizeof(struct lpfc_queue *) *
7198 phba->cfg_fcp_io_channel), GFP_KERNEL);
7199 if (!phba->sli4_hba.hba_eq) {
7200 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7201 "2576 Failed allocate memory for "
7202 "fast-path EQ record array\n");
7206 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
7207 phba->cfg_fcp_io_channel), GFP_KERNEL);
7208 if (!phba->sli4_hba.fcp_cq) {
7209 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7210 "2577 Failed allocate memory for fast-path "
7211 "CQ record array\n");
7215 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
7216 phba->cfg_fcp_io_channel), GFP_KERNEL);
7217 if (!phba->sli4_hba.fcp_wq) {
7218 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7219 "2578 Failed allocate memory for fast-path "
7220 "WQ record array\n");
7225 * Since the first EQ can have multiple CQs associated with it,
7226 * this array is used to quickly see if we have a FCP fast-path
7229 phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
7230 phba->cfg_fcp_io_channel), GFP_KERNEL);
7231 if (!phba->sli4_hba.fcp_cq_map) {
7232 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7233 "2545 Failed allocate memory for fast-path "
7239 * Create HBA Event Queues (EQs). The cfg_fcp_io_channel specifies
7240 * how many EQs to create.
7242 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7245 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
7246 phba->sli4_hba.eq_ecount);
7248 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7249 "0497 Failed allocate EQ (%d)\n", idx);
7252 phba->sli4_hba.hba_eq[idx] = qdesc;
7254 /* Create Fast Path FCP CQs */
7255 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7256 phba->sli4_hba.cq_ecount);
7258 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7259 "0499 Failed allocate fast-path FCP "
7263 phba->sli4_hba.fcp_cq[idx] = qdesc;
7265 /* Create Fast Path FCP WQs */
7266 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7267 phba->sli4_hba.wq_ecount);
7269 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7270 "0503 Failed allocate fast-path FCP "
7274 phba->sli4_hba.fcp_wq[idx] = qdesc;
7279 * Create Slow Path Completion Queues (CQs)
7282 /* Create slow-path Mailbox Command Complete Queue */
7283 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7284 phba->sli4_hba.cq_ecount);
7286 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7287 "0500 Failed allocate slow-path mailbox CQ\n");
7290 phba->sli4_hba.mbx_cq = qdesc;
7292 /* Create slow-path ELS Complete Queue */
7293 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7294 phba->sli4_hba.cq_ecount);
7296 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7297 "0501 Failed allocate slow-path ELS CQ\n");
7300 phba->sli4_hba.els_cq = qdesc;
7304 * Create Slow Path Work Queues (WQs)
7307 /* Create Mailbox Command Queue */
7309 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7310 phba->sli4_hba.mq_ecount);
7312 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7313 "0505 Failed allocate slow-path MQ\n");
7316 phba->sli4_hba.mbx_wq = qdesc;
7319 * Create ELS Work Queues
7322 /* Create slow-path ELS Work Queue */
7323 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7324 phba->sli4_hba.wq_ecount);
7326 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7327 "0504 Failed allocate slow-path ELS WQ\n");
7330 phba->sli4_hba.els_wq = qdesc;
7333 * Create Receive Queue (RQ)
7336 /* Create Receive Queue for header */
7337 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7338 phba->sli4_hba.rq_ecount);
7340 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7341 "0506 Failed allocate receive HRQ\n");
7344 phba->sli4_hba.hdr_rq = qdesc;
7346 /* Create Receive Queue for data */
7347 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7348 phba->sli4_hba.rq_ecount);
7350 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7351 "0507 Failed allocate receive DRQ\n");
7354 phba->sli4_hba.dat_rq = qdesc;
7356 /* Create the Queues needed for Flash Optimized Fabric operations */
7358 lpfc_fof_queue_create(phba);
7362 lpfc_sli4_queue_destroy(phba);
7367 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7368 * @phba: pointer to lpfc hba data structure.
7370 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7375 * -ENOMEM - No available memory
7376 * -EIO - The mailbox failed to complete successfully.
7379 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7384 lpfc_fof_queue_destroy(phba);
7386 if (phba->sli4_hba.hba_eq != NULL) {
7387 /* Release HBA event queue */
7388 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7389 if (phba->sli4_hba.hba_eq[idx] != NULL) {
7390 lpfc_sli4_queue_free(
7391 phba->sli4_hba.hba_eq[idx]);
7392 phba->sli4_hba.hba_eq[idx] = NULL;
7395 kfree(phba->sli4_hba.hba_eq);
7396 phba->sli4_hba.hba_eq = NULL;
7399 if (phba->sli4_hba.fcp_cq != NULL) {
7400 /* Release FCP completion queue */
7401 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7402 if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7403 lpfc_sli4_queue_free(
7404 phba->sli4_hba.fcp_cq[idx]);
7405 phba->sli4_hba.fcp_cq[idx] = NULL;
7408 kfree(phba->sli4_hba.fcp_cq);
7409 phba->sli4_hba.fcp_cq = NULL;
7412 if (phba->sli4_hba.fcp_wq != NULL) {
7413 /* Release FCP work queue */
7414 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7415 if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7416 lpfc_sli4_queue_free(
7417 phba->sli4_hba.fcp_wq[idx]);
7418 phba->sli4_hba.fcp_wq[idx] = NULL;
7421 kfree(phba->sli4_hba.fcp_wq);
7422 phba->sli4_hba.fcp_wq = NULL;
7425 /* Release FCP CQ mapping array */
7426 if (phba->sli4_hba.fcp_cq_map != NULL) {
7427 kfree(phba->sli4_hba.fcp_cq_map);
7428 phba->sli4_hba.fcp_cq_map = NULL;
7431 /* Release mailbox command work queue */
7432 if (phba->sli4_hba.mbx_wq != NULL) {
7433 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
7434 phba->sli4_hba.mbx_wq = NULL;
7437 /* Release ELS work queue */
7438 if (phba->sli4_hba.els_wq != NULL) {
7439 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7440 phba->sli4_hba.els_wq = NULL;
7443 /* Release unsolicited receive queue */
7444 if (phba->sli4_hba.hdr_rq != NULL) {
7445 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7446 phba->sli4_hba.hdr_rq = NULL;
7448 if (phba->sli4_hba.dat_rq != NULL) {
7449 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7450 phba->sli4_hba.dat_rq = NULL;
7453 /* Release ELS complete queue */
7454 if (phba->sli4_hba.els_cq != NULL) {
7455 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7456 phba->sli4_hba.els_cq = NULL;
7459 /* Release mailbox command complete queue */
7460 if (phba->sli4_hba.mbx_cq != NULL) {
7461 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7462 phba->sli4_hba.mbx_cq = NULL;
7469 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7470 * @phba: pointer to lpfc hba data structure.
7472 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7477 * -ENOMEM - No available memory
7478 * -EIO - The mailbox failed to complete successfully.
7481 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7483 struct lpfc_sli *psli = &phba->sli;
7484 struct lpfc_sli_ring *pring;
7486 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7487 int fcp_cq_index = 0;
7488 uint32_t shdr_status, shdr_add_status;
7489 union lpfc_sli4_cfg_shdr *shdr;
7490 LPFC_MBOXQ_t *mboxq;
7493 /* Check for dual-ULP support */
7494 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7496 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7497 "3249 Unable to allocate memory for "
7498 "QUERY_FW_CFG mailbox command\n");
7501 length = (sizeof(struct lpfc_mbx_query_fw_config) -
7502 sizeof(struct lpfc_sli4_cfg_mhdr));
7503 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7504 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
7505 length, LPFC_SLI4_MBX_EMBED);
7507 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7509 shdr = (union lpfc_sli4_cfg_shdr *)
7510 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7511 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7512 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7513 if (shdr_status || shdr_add_status || rc) {
7514 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7515 "3250 QUERY_FW_CFG mailbox failed with status "
7516 "x%x add_status x%x, mbx status x%x\n",
7517 shdr_status, shdr_add_status, rc);
7518 if (rc != MBX_TIMEOUT)
7519 mempool_free(mboxq, phba->mbox_mem_pool);
7524 phba->sli4_hba.fw_func_mode =
7525 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
7526 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
7527 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
7528 phba->sli4_hba.physical_port =
7529 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
7530 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7531 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
7532 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
7533 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
7535 if (rc != MBX_TIMEOUT)
7536 mempool_free(mboxq, phba->mbox_mem_pool);
7539 * Set up HBA Event Queues (EQs)
7542 /* Set up HBA event queue */
7543 if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7544 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7545 "3147 Fast-path EQs not allocated\n");
7549 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7550 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7551 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7552 "0522 Fast-path EQ (%d) not "
7553 "allocated\n", fcp_eqidx);
7555 goto out_destroy_hba_eq;
7557 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7558 (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7560 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7561 "0523 Failed setup of fast-path EQ "
7562 "(%d), rc = 0x%x\n", fcp_eqidx,
7564 goto out_destroy_hba_eq;
7566 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7567 "2584 HBA EQ setup: "
7568 "queue[%d]-id=%d\n", fcp_eqidx,
7569 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7572 /* Set up fast-path FCP Response Complete Queue */
7573 if (!phba->sli4_hba.fcp_cq) {
7574 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7575 "3148 Fast-path FCP CQ array not "
7578 goto out_destroy_hba_eq;
7581 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7582 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7583 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7584 "0526 Fast-path FCP CQ (%d) not "
7585 "allocated\n", fcp_cqidx);
7587 goto out_destroy_fcp_cq;
7589 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7590 phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7592 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7593 "0527 Failed setup of fast-path FCP "
7594 "CQ (%d), rc = 0x%x\n", fcp_cqidx,
7596 goto out_destroy_fcp_cq;
7599 /* Setup fcp_cq_map for fast lookup */
7600 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7601 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7603 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7604 "2588 FCP CQ setup: cq[%d]-id=%d, "
7605 "parent seq[%d]-id=%d\n",
7607 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7609 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7612 /* Set up fast-path FCP Work Queue */
7613 if (!phba->sli4_hba.fcp_wq) {
7614 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7615 "3149 Fast-path FCP WQ array not "
7618 goto out_destroy_fcp_cq;
7621 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7622 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7623 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7624 "0534 Fast-path FCP WQ (%d) not "
7625 "allocated\n", fcp_wqidx);
7627 goto out_destroy_fcp_wq;
7629 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7630 phba->sli4_hba.fcp_cq[fcp_wqidx],
7633 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7634 "0535 Failed setup of fast-path FCP "
7635 "WQ (%d), rc = 0x%x\n", fcp_wqidx,
7637 goto out_destroy_fcp_wq;
7640 /* Bind this WQ to the next FCP ring */
7641 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7642 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7643 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7645 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7646 "2591 FCP WQ setup: wq[%d]-id=%d, "
7647 "parent cq[%d]-id=%d\n",
7649 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7651 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7654 * Set up Complete Queues (CQs)
7657 /* Set up slow-path MBOX Complete Queue as the first CQ */
7658 if (!phba->sli4_hba.mbx_cq) {
7659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7660 "0528 Mailbox CQ not allocated\n");
7662 goto out_destroy_fcp_wq;
7664 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7665 phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7667 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7668 "0529 Failed setup of slow-path mailbox CQ: "
7669 "rc = 0x%x\n", (uint32_t)rc);
7670 goto out_destroy_fcp_wq;
7672 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7673 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7674 phba->sli4_hba.mbx_cq->queue_id,
7675 phba->sli4_hba.hba_eq[0]->queue_id);
7677 /* Set up slow-path ELS Complete Queue */
7678 if (!phba->sli4_hba.els_cq) {
7679 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7680 "0530 ELS CQ not allocated\n");
7682 goto out_destroy_mbx_cq;
7684 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7685 phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7687 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7688 "0531 Failed setup of slow-path ELS CQ: "
7689 "rc = 0x%x\n", (uint32_t)rc);
7690 goto out_destroy_mbx_cq;
7692 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7693 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7694 phba->sli4_hba.els_cq->queue_id,
7695 phba->sli4_hba.hba_eq[0]->queue_id);
7698 * Set up all the Work Queues (WQs)
7701 /* Set up Mailbox Command Queue */
7702 if (!phba->sli4_hba.mbx_wq) {
7703 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7704 "0538 Slow-path MQ not allocated\n");
7706 goto out_destroy_els_cq;
7708 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7709 phba->sli4_hba.mbx_cq, LPFC_MBOX);
7711 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7712 "0539 Failed setup of slow-path MQ: "
7714 goto out_destroy_els_cq;
7716 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7717 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7718 phba->sli4_hba.mbx_wq->queue_id,
7719 phba->sli4_hba.mbx_cq->queue_id);
7721 /* Set up slow-path ELS Work Queue */
7722 if (!phba->sli4_hba.els_wq) {
7723 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7724 "0536 Slow-path ELS WQ not allocated\n");
7726 goto out_destroy_mbx_wq;
7728 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7729 phba->sli4_hba.els_cq, LPFC_ELS);
7731 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7732 "0537 Failed setup of slow-path ELS WQ: "
7733 "rc = 0x%x\n", (uint32_t)rc);
7734 goto out_destroy_mbx_wq;
7737 /* Bind this WQ to the ELS ring */
7738 pring = &psli->ring[LPFC_ELS_RING];
7739 pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7740 phba->sli4_hba.els_cq->pring = pring;
7742 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7743 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7744 phba->sli4_hba.els_wq->queue_id,
7745 phba->sli4_hba.els_cq->queue_id);
7748 * Create Receive Queue (RQ)
7750 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7751 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7752 "0540 Receive Queue not allocated\n");
7754 goto out_destroy_els_wq;
7757 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7758 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7760 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7761 phba->sli4_hba.els_cq, LPFC_USOL);
7763 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7764 "0541 Failed setup of Receive Queue: "
7765 "rc = 0x%x\n", (uint32_t)rc);
7766 goto out_destroy_fcp_wq;
7769 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7770 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7771 "parent cq-id=%d\n",
7772 phba->sli4_hba.hdr_rq->queue_id,
7773 phba->sli4_hba.dat_rq->queue_id,
7774 phba->sli4_hba.els_cq->queue_id);
7776 if (phba->cfg_fof) {
7777 rc = lpfc_fof_queue_setup(phba);
7779 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7780 "0549 Failed setup of FOF Queues: "
7782 goto out_destroy_els_rq;
7787 * Configure EQ delay multipier for interrupt coalescing using
7788 * MODIFY_EQ_DELAY for all EQs created, LPFC_MAX_EQ_DELAY at a time.
7790 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
7791 fcp_eqidx += LPFC_MAX_EQ_DELAY)
7792 lpfc_modify_fcp_eq_delay(phba, fcp_eqidx);
7796 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7798 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7800 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7802 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7804 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7806 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7807 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7809 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7810 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7812 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7813 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7819 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7820 * @phba: pointer to lpfc hba data structure.
7822 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7827 * -ENOMEM - No available memory
7828 * -EIO - The mailbox failed to complete successfully.
7831 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7835 /* Unset the queues created for Flash Optimized Fabric operations */
7837 lpfc_fof_queue_destroy(phba);
7838 /* Unset mailbox command work queue */
7839 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7840 /* Unset ELS work queue */
7841 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7842 /* Unset unsolicited receive queue */
7843 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7844 /* Unset FCP work queue */
7845 if (phba->sli4_hba.fcp_wq) {
7846 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7848 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7850 /* Unset mailbox command complete queue */
7851 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7852 /* Unset ELS complete queue */
7853 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7854 /* Unset FCP response complete queue */
7855 if (phba->sli4_hba.fcp_cq) {
7856 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7858 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7860 /* Unset fast-path event queue */
7861 if (phba->sli4_hba.hba_eq) {
7862 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7864 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
7869 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7870 * @phba: pointer to lpfc hba data structure.
7872 * This routine is invoked to allocate and set up a pool of completion queue
7873 * events. The body of the completion queue event is a completion queue entry
7874 * CQE. For now, this pool is used for the interrupt service routine to queue
7875 * the following HBA completion queue events for the worker thread to process:
7876 * - Mailbox asynchronous events
7877 * - Receive queue completion unsolicited events
7878 * Later, this can be used for all the slow-path events.
7882 * -ENOMEM - No available memory
7885 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7887 struct lpfc_cq_event *cq_event;
7890 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7891 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7893 goto out_pool_create_fail;
7894 list_add_tail(&cq_event->list,
7895 &phba->sli4_hba.sp_cqe_event_pool);
7899 out_pool_create_fail:
7900 lpfc_sli4_cq_event_pool_destroy(phba);
7905 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7906 * @phba: pointer to lpfc hba data structure.
7908 * This routine is invoked to free the pool of completion queue events at
7909 * driver unload time. Note that, it is the responsibility of the driver
7910 * cleanup routine to free all the outstanding completion-queue events
7911 * allocated from this pool back into the pool before invoking this routine
7912 * to destroy the pool.
7915 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7917 struct lpfc_cq_event *cq_event, *next_cq_event;
7919 list_for_each_entry_safe(cq_event, next_cq_event,
7920 &phba->sli4_hba.sp_cqe_event_pool, list) {
7921 list_del(&cq_event->list);
7927 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7928 * @phba: pointer to lpfc hba data structure.
7930 * This routine is the lock free version of the API invoked to allocate a
7931 * completion-queue event from the free pool.
7933 * Return: Pointer to the newly allocated completion-queue event if successful
7936 struct lpfc_cq_event *
7937 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7939 struct lpfc_cq_event *cq_event = NULL;
7941 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7942 struct lpfc_cq_event, list);
7947 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7948 * @phba: pointer to lpfc hba data structure.
7950 * This routine is the lock version of the API invoked to allocate a
7951 * completion-queue event from the free pool.
7953 * Return: Pointer to the newly allocated completion-queue event if successful
7956 struct lpfc_cq_event *
7957 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7959 struct lpfc_cq_event *cq_event;
7960 unsigned long iflags;
7962 spin_lock_irqsave(&phba->hbalock, iflags);
7963 cq_event = __lpfc_sli4_cq_event_alloc(phba);
7964 spin_unlock_irqrestore(&phba->hbalock, iflags);
7969 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7970 * @phba: pointer to lpfc hba data structure.
7971 * @cq_event: pointer to the completion queue event to be freed.
7973 * This routine is the lock free version of the API invoked to release a
7974 * completion-queue event back into the free pool.
7977 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7978 struct lpfc_cq_event *cq_event)
7980 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7984 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7985 * @phba: pointer to lpfc hba data structure.
7986 * @cq_event: pointer to the completion queue event to be freed.
7988 * This routine is the lock version of the API invoked to release a
7989 * completion-queue event back into the free pool.
7992 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7993 struct lpfc_cq_event *cq_event)
7995 unsigned long iflags;
7996 spin_lock_irqsave(&phba->hbalock, iflags);
7997 __lpfc_sli4_cq_event_release(phba, cq_event);
7998 spin_unlock_irqrestore(&phba->hbalock, iflags);
8002 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
8003 * @phba: pointer to lpfc hba data structure.
8005 * This routine is to free all the pending completion-queue events to the
8006 * back into the free pool for device reset.
8009 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
8012 struct lpfc_cq_event *cqe;
8013 unsigned long iflags;
8015 /* Retrieve all the pending WCQEs from pending WCQE lists */
8016 spin_lock_irqsave(&phba->hbalock, iflags);
8017 /* Pending FCP XRI abort events */
8018 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
8020 /* Pending ELS XRI abort events */
8021 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
8023 /* Pending asynnc events */
8024 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
8026 spin_unlock_irqrestore(&phba->hbalock, iflags);
8028 while (!list_empty(&cqelist)) {
8029 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
8030 lpfc_sli4_cq_event_release(phba, cqe);
8035 * lpfc_pci_function_reset - Reset pci function.
8036 * @phba: pointer to lpfc hba data structure.
8038 * This routine is invoked to request a PCI function reset. It will destroys
8039 * all resources assigned to the PCI function which originates this request.
8043 * -ENOMEM - No available memory
8044 * -EIO - The mailbox failed to complete successfully.
8047 lpfc_pci_function_reset(struct lpfc_hba *phba)
8049 LPFC_MBOXQ_t *mboxq;
8050 uint32_t rc = 0, if_type;
8051 uint32_t shdr_status, shdr_add_status;
8053 uint32_t port_reset = 0;
8054 union lpfc_sli4_cfg_shdr *shdr;
8055 struct lpfc_register reg_data;
8058 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8060 case LPFC_SLI_INTF_IF_TYPE_0:
8061 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8064 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8065 "0494 Unable to allocate memory for "
8066 "issuing SLI_FUNCTION_RESET mailbox "
8071 /* Setup PCI function reset mailbox-ioctl command */
8072 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8073 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
8074 LPFC_SLI4_MBX_EMBED);
8075 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8076 shdr = (union lpfc_sli4_cfg_shdr *)
8077 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8078 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8079 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
8081 if (rc != MBX_TIMEOUT)
8082 mempool_free(mboxq, phba->mbox_mem_pool);
8083 if (shdr_status || shdr_add_status || rc) {
8084 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8085 "0495 SLI_FUNCTION_RESET mailbox "
8086 "failed with status x%x add_status x%x,"
8087 " mbx status x%x\n",
8088 shdr_status, shdr_add_status, rc);
8092 case LPFC_SLI_INTF_IF_TYPE_2:
8095 * Poll the Port Status Register and wait for RDY for
8096 * up to 30 seconds. If the port doesn't respond, treat
8099 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
8100 if (lpfc_readl(phba->sli4_hba.u.if_type2.
8101 STATUSregaddr, ®_data.word0)) {
8105 if (bf_get(lpfc_sliport_status_rdy, ®_data))
8110 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) {
8111 phba->work_status[0] = readl(
8112 phba->sli4_hba.u.if_type2.ERR1regaddr);
8113 phba->work_status[1] = readl(
8114 phba->sli4_hba.u.if_type2.ERR2regaddr);
8115 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8116 "2890 Port not ready, port status reg "
8117 "0x%x error 1=0x%x, error 2=0x%x\n",
8119 phba->work_status[0],
8120 phba->work_status[1]);
8127 * Reset the port now
8130 bf_set(lpfc_sliport_ctrl_end, ®_data,
8131 LPFC_SLIPORT_LITTLE_ENDIAN);
8132 bf_set(lpfc_sliport_ctrl_ip, ®_data,
8133 LPFC_SLIPORT_INIT_PORT);
8134 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
8137 pci_read_config_word(phba->pcidev,
8138 PCI_DEVICE_ID, &devid);
8143 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) {
8149 case LPFC_SLI_INTF_IF_TYPE_1:
8155 /* Catch the not-ready port failure after a port reset. */
8157 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8158 "3317 HBA not functional: IP Reset Failed "
8159 "try: echo fw_reset > board_mode\n");
8167 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
8168 * @phba: pointer to lpfc hba data structure.
8170 * This routine is invoked to set up the PCI device memory space for device
8171 * with SLI-4 interface spec.
8175 * other values - error
8178 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
8180 struct pci_dev *pdev;
8181 unsigned long bar0map_len, bar1map_len, bar2map_len;
8182 int error = -ENODEV;
8185 /* Obtain PCI device reference */
8189 pdev = phba->pcidev;
8191 /* Set the device DMA mask size */
8192 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
8193 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
8194 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
8195 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
8201 * The BARs and register set definitions and offset locations are
8202 * dependent on the if_type.
8204 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
8205 &phba->sli4_hba.sli_intf.word0)) {
8209 /* There is no SLI3 failback for SLI4 devices. */
8210 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
8211 LPFC_SLI_INTF_VALID) {
8212 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8213 "2894 SLI_INTF reg contents invalid "
8214 "sli_intf reg 0x%x\n",
8215 phba->sli4_hba.sli_intf.word0);
8219 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8221 * Get the bus address of SLI4 device Bar regions and the
8222 * number of bytes required by each mapping. The mapping of the
8223 * particular PCI BARs regions is dependent on the type of
8226 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
8227 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
8228 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
8231 * Map SLI4 PCI Config Space Register base to a kernel virtual
8234 phba->sli4_hba.conf_regs_memmap_p =
8235 ioremap(phba->pci_bar0_map, bar0map_len);
8236 if (!phba->sli4_hba.conf_regs_memmap_p) {
8237 dev_printk(KERN_ERR, &pdev->dev,
8238 "ioremap failed for SLI4 PCI config "
8242 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
8243 /* Set up BAR0 PCI config space register memory map */
8244 lpfc_sli4_bar0_register_memmap(phba, if_type);
8246 phba->pci_bar0_map = pci_resource_start(pdev, 1);
8247 bar0map_len = pci_resource_len(pdev, 1);
8248 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8249 dev_printk(KERN_ERR, &pdev->dev,
8250 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
8253 phba->sli4_hba.conf_regs_memmap_p =
8254 ioremap(phba->pci_bar0_map, bar0map_len);
8255 if (!phba->sli4_hba.conf_regs_memmap_p) {
8256 dev_printk(KERN_ERR, &pdev->dev,
8257 "ioremap failed for SLI4 PCI config "
8261 lpfc_sli4_bar0_register_memmap(phba, if_type);
8264 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8265 (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
8267 * Map SLI4 if type 0 HBA Control Register base to a kernel
8268 * virtual address and setup the registers.
8270 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
8271 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
8272 phba->sli4_hba.ctrl_regs_memmap_p =
8273 ioremap(phba->pci_bar1_map, bar1map_len);
8274 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
8275 dev_printk(KERN_ERR, &pdev->dev,
8276 "ioremap failed for SLI4 HBA control registers.\n");
8277 goto out_iounmap_conf;
8279 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
8280 lpfc_sli4_bar1_register_memmap(phba);
8283 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8284 (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
8286 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
8287 * virtual address and setup the registers.
8289 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
8290 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
8291 phba->sli4_hba.drbl_regs_memmap_p =
8292 ioremap(phba->pci_bar2_map, bar2map_len);
8293 if (!phba->sli4_hba.drbl_regs_memmap_p) {
8294 dev_printk(KERN_ERR, &pdev->dev,
8295 "ioremap failed for SLI4 HBA doorbell registers.\n");
8296 goto out_iounmap_ctrl;
8298 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
8299 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
8301 goto out_iounmap_all;
8307 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8309 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8311 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8317 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
8318 * @phba: pointer to lpfc hba data structure.
8320 * This routine is invoked to unset the PCI device memory space for device
8321 * with SLI-4 interface spec.
8324 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
8327 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8330 case LPFC_SLI_INTF_IF_TYPE_0:
8331 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8332 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8333 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8335 case LPFC_SLI_INTF_IF_TYPE_2:
8336 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8338 case LPFC_SLI_INTF_IF_TYPE_1:
8340 dev_printk(KERN_ERR, &phba->pcidev->dev,
8341 "FATAL - unsupported SLI4 interface type - %d\n",
8348 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
8349 * @phba: pointer to lpfc hba data structure.
8351 * This routine is invoked to enable the MSI-X interrupt vectors to device
8352 * with SLI-3 interface specs. The kernel function pci_enable_msix_exact()
8353 * is called to enable the MSI-X vectors. Note that pci_enable_msix_exact(),
8354 * once invoked, enables either all or nothing, depending on the current
8355 * availability of PCI vector resources. The device driver is responsible
8356 * for calling the individual request_irq() to register each MSI-X vector
8357 * with a interrupt handler, which is done in this function. Note that
8358 * later when device is unloading, the driver should always call free_irq()
8359 * on all MSI-X vectors it has done request_irq() on before calling
8360 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8361 * will be left with MSI-X enabled and leaks its vectors.
8365 * other values - error
8368 lpfc_sli_enable_msix(struct lpfc_hba *phba)
8373 /* Set up MSI-X multi-message vectors */
8374 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8375 phba->msix_entries[i].entry = i;
8377 /* Configure MSI-X capability structure */
8378 rc = pci_enable_msix_exact(phba->pcidev, phba->msix_entries,
8381 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8382 "0420 PCI enable MSI-X failed (%d)\n", rc);
8385 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8386 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8387 "0477 MSI-X entry[%d]: vector=x%x "
8389 phba->msix_entries[i].vector,
8390 phba->msix_entries[i].entry);
8392 * Assign MSI-X vectors to interrupt handlers
8395 /* vector-0 is associated to slow-path handler */
8396 rc = request_irq(phba->msix_entries[0].vector,
8397 &lpfc_sli_sp_intr_handler, 0,
8398 LPFC_SP_DRIVER_HANDLER_NAME, phba);
8400 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8401 "0421 MSI-X slow-path request_irq failed "
8406 /* vector-1 is associated to fast-path handler */
8407 rc = request_irq(phba->msix_entries[1].vector,
8408 &lpfc_sli_fp_intr_handler, 0,
8409 LPFC_FP_DRIVER_HANDLER_NAME, phba);
8412 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8413 "0429 MSI-X fast-path request_irq failed "
8419 * Configure HBA MSI-X attention conditions to messages
8421 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8425 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8426 "0474 Unable to allocate memory for issuing "
8427 "MBOX_CONFIG_MSI command\n");
8430 rc = lpfc_config_msi(phba, pmb);
8433 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8434 if (rc != MBX_SUCCESS) {
8435 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8436 "0351 Config MSI mailbox command failed, "
8437 "mbxCmd x%x, mbxStatus x%x\n",
8438 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8442 /* Free memory allocated for mailbox command */
8443 mempool_free(pmb, phba->mbox_mem_pool);
8447 /* Free memory allocated for mailbox command */
8448 mempool_free(pmb, phba->mbox_mem_pool);
8451 /* free the irq already requested */
8452 free_irq(phba->msix_entries[1].vector, phba);
8455 /* free the irq already requested */
8456 free_irq(phba->msix_entries[0].vector, phba);
8459 /* Unconfigure MSI-X capability structure */
8460 pci_disable_msix(phba->pcidev);
8467 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8468 * @phba: pointer to lpfc hba data structure.
8470 * This routine is invoked to release the MSI-X vectors and then disable the
8471 * MSI-X interrupt mode to device with SLI-3 interface spec.
8474 lpfc_sli_disable_msix(struct lpfc_hba *phba)
8478 /* Free up MSI-X multi-message vectors */
8479 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8480 free_irq(phba->msix_entries[i].vector, phba);
8482 pci_disable_msix(phba->pcidev);
8488 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8489 * @phba: pointer to lpfc hba data structure.
8491 * This routine is invoked to enable the MSI interrupt mode to device with
8492 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8493 * enable the MSI vector. The device driver is responsible for calling the
8494 * request_irq() to register MSI vector with a interrupt the handler, which
8495 * is done in this function.
8499 * other values - error
8502 lpfc_sli_enable_msi(struct lpfc_hba *phba)
8506 rc = pci_enable_msi(phba->pcidev);
8508 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8509 "0462 PCI enable MSI mode success.\n");
8511 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8512 "0471 PCI enable MSI mode failed (%d)\n", rc);
8516 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8517 0, LPFC_DRIVER_NAME, phba);
8519 pci_disable_msi(phba->pcidev);
8520 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8521 "0478 MSI request_irq failed (%d)\n", rc);
8527 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8528 * @phba: pointer to lpfc hba data structure.
8530 * This routine is invoked to disable the MSI interrupt mode to device with
8531 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8532 * done request_irq() on before calling pci_disable_msi(). Failure to do so
8533 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8537 lpfc_sli_disable_msi(struct lpfc_hba *phba)
8539 free_irq(phba->pcidev->irq, phba);
8540 pci_disable_msi(phba->pcidev);
8545 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8546 * @phba: pointer to lpfc hba data structure.
8548 * This routine is invoked to enable device interrupt and associate driver's
8549 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8550 * spec. Depends on the interrupt mode configured to the driver, the driver
8551 * will try to fallback from the configured interrupt mode to an interrupt
8552 * mode which is supported by the platform, kernel, and device in the order
8554 * MSI-X -> MSI -> IRQ.
8558 * other values - error
8561 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8563 uint32_t intr_mode = LPFC_INTR_ERROR;
8566 if (cfg_mode == 2) {
8567 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8568 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8570 /* Now, try to enable MSI-X interrupt mode */
8571 retval = lpfc_sli_enable_msix(phba);
8573 /* Indicate initialization to MSI-X mode */
8574 phba->intr_type = MSIX;
8580 /* Fallback to MSI if MSI-X initialization failed */
8581 if (cfg_mode >= 1 && phba->intr_type == NONE) {
8582 retval = lpfc_sli_enable_msi(phba);
8584 /* Indicate initialization to MSI mode */
8585 phba->intr_type = MSI;
8590 /* Fallback to INTx if both MSI-X/MSI initalization failed */
8591 if (phba->intr_type == NONE) {
8592 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8593 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8595 /* Indicate initialization to INTx mode */
8596 phba->intr_type = INTx;
8604 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8605 * @phba: pointer to lpfc hba data structure.
8607 * This routine is invoked to disable device interrupt and disassociate the
8608 * driver's interrupt handler(s) from interrupt vector(s) to device with
8609 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8610 * release the interrupt vector(s) for the message signaled interrupt.
8613 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8615 /* Disable the currently initialized interrupt mode */
8616 if (phba->intr_type == MSIX)
8617 lpfc_sli_disable_msix(phba);
8618 else if (phba->intr_type == MSI)
8619 lpfc_sli_disable_msi(phba);
8620 else if (phba->intr_type == INTx)
8621 free_irq(phba->pcidev->irq, phba);
8623 /* Reset interrupt management states */
8624 phba->intr_type = NONE;
8625 phba->sli.slistat.sli_intr = 0;
8631 * lpfc_find_next_cpu - Find next available CPU that matches the phys_id
8632 * @phba: pointer to lpfc hba data structure.
8634 * Find next available CPU to use for IRQ to CPU affinity.
8637 lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id)
8639 struct lpfc_vector_map_info *cpup;
8642 cpup = phba->sli4_hba.cpu_map;
8643 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8644 /* CPU must be online */
8645 if (cpu_online(cpu)) {
8646 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8647 (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) &&
8648 (cpup->phys_id == phys_id)) {
8656 * If we get here, we have used ALL CPUs for the specific
8657 * phys_id. Now we need to clear out lpfc_used_cpu and start
8661 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8662 if (lpfc_used_cpu[cpu] == phys_id)
8663 lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
8666 cpup = phba->sli4_hba.cpu_map;
8667 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8668 /* CPU must be online */
8669 if (cpu_online(cpu)) {
8670 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8671 (cpup->phys_id == phys_id)) {
8677 return LPFC_VECTOR_MAP_EMPTY;
8681 * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors
8682 * @phba: pointer to lpfc hba data structure.
8683 * @vectors: number of HBA vectors
8685 * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector
8686 * affinization across multple physical CPUs (numa nodes).
8687 * In addition, this routine will assign an IO channel for each CPU
8688 * to use when issuing I/Os.
8691 lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors)
8693 int i, idx, saved_chann, used_chann, cpu, phys_id;
8694 int max_phys_id, min_phys_id;
8695 int num_io_channel, first_cpu, chan;
8696 struct lpfc_vector_map_info *cpup;
8698 struct cpuinfo_x86 *cpuinfo;
8700 uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1];
8702 /* If there is no mapping, just return */
8703 if (!phba->cfg_fcp_cpu_map)
8706 /* Init cpu_map array */
8707 memset(phba->sli4_hba.cpu_map, 0xff,
8708 (sizeof(struct lpfc_vector_map_info) *
8709 phba->sli4_hba.num_present_cpu));
8715 first_cpu = LPFC_VECTOR_MAP_EMPTY;
8717 /* Update CPU map with physical id and core id of each CPU */
8718 cpup = phba->sli4_hba.cpu_map;
8719 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8721 cpuinfo = &cpu_data(cpu);
8722 cpup->phys_id = cpuinfo->phys_proc_id;
8723 cpup->core_id = cpuinfo->cpu_core_id;
8725 /* No distinction between CPUs for other platforms */
8730 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8731 "3328 CPU physid %d coreid %d\n",
8732 cpup->phys_id, cpup->core_id);
8734 if (cpup->phys_id > max_phys_id)
8735 max_phys_id = cpup->phys_id;
8736 if (cpup->phys_id < min_phys_id)
8737 min_phys_id = cpup->phys_id;
8741 phys_id = min_phys_id;
8742 /* Now associate the HBA vectors with specific CPUs */
8743 for (idx = 0; idx < vectors; idx++) {
8744 cpup = phba->sli4_hba.cpu_map;
8745 cpu = lpfc_find_next_cpu(phba, phys_id);
8746 if (cpu == LPFC_VECTOR_MAP_EMPTY) {
8748 /* Try for all phys_id's */
8749 for (i = 1; i < max_phys_id; i++) {
8751 if (phys_id > max_phys_id)
8752 phys_id = min_phys_id;
8753 cpu = lpfc_find_next_cpu(phba, phys_id);
8754 if (cpu == LPFC_VECTOR_MAP_EMPTY)
8759 /* Use round robin for scheduling */
8760 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN;
8762 cpup = phba->sli4_hba.cpu_map;
8763 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
8764 cpup->channel_id = chan;
8767 if (chan >= phba->cfg_fcp_io_channel)
8771 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8772 "3329 Cannot set affinity:"
8773 "Error mapping vector %d (%d)\n",
8779 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP)
8780 lpfc_used_cpu[cpu] = phys_id;
8782 /* Associate vector with selected CPU */
8783 cpup->irq = phba->sli4_hba.msix_entries[idx].vector;
8785 /* Associate IO channel with selected CPU */
8786 cpup->channel_id = idx;
8789 if (first_cpu == LPFC_VECTOR_MAP_EMPTY)
8792 /* Now affinitize to the selected CPU */
8793 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx].
8794 vector, get_cpu_mask(cpu));
8796 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8797 "3330 Set Affinity: CPU %d channel %d "
8799 cpu, cpup->channel_id,
8800 phba->sli4_hba.msix_entries[idx].vector, i);
8802 /* Spread vector mapping across multple physical CPU nodes */
8804 if (phys_id > max_phys_id)
8805 phys_id = min_phys_id;
8809 * Finally fill in the IO channel for any remaining CPUs.
8810 * At this point, all IO channels have been assigned to a specific
8811 * MSIx vector, mapped to a specific CPU.
8812 * Base the remaining IO channel assigned, to IO channels already
8813 * assigned to other CPUs on the same phys_id.
8815 for (i = min_phys_id; i <= max_phys_id; i++) {
8817 * If there are no io channels already mapped to
8818 * this phys_id, just round robin thru the io_channels.
8819 * Setup chann[] for round robin.
8821 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8828 * First build a list of IO channels already assigned
8829 * to this phys_id before reassigning the same IO
8830 * channels to the remaining CPUs.
8832 cpup = phba->sli4_hba.cpu_map;
8835 for (idx = 0; idx < phba->sli4_hba.num_present_cpu;
8837 if (cpup->phys_id == i) {
8839 * Save any IO channels that are
8840 * already mapped to this phys_id.
8842 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
8844 LPFC_FCP_IO_CHAN_MAX) {
8845 chann[saved_chann] =
8852 /* See if we are using round-robin */
8853 if (saved_chann == 0)
8855 phba->cfg_fcp_io_channel;
8857 /* Associate next IO channel with CPU */
8858 cpup->channel_id = chann[used_chann];
8861 if (used_chann == saved_chann)
8864 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8865 "3331 Set IO_CHANN "
8866 "CPU %d channel %d\n",
8867 idx, cpup->channel_id);
8871 if (cpu >= phba->sli4_hba.num_present_cpu) {
8872 cpup = phba->sli4_hba.cpu_map;
8880 if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) {
8881 cpup = phba->sli4_hba.cpu_map;
8882 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) {
8883 if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) {
8884 cpup->channel_id = 0;
8887 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8888 "3332 Assign IO_CHANN "
8889 "CPU %d channel %d\n",
8890 idx, cpup->channel_id);
8897 if (num_io_channel != phba->sli4_hba.num_present_cpu)
8898 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8899 "3333 Set affinity mismatch:"
8900 "%d chann != %d cpus: %d vectors\n",
8901 num_io_channel, phba->sli4_hba.num_present_cpu,
8904 /* Enable using cpu affinity for scheduling */
8905 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU;
8911 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8912 * @phba: pointer to lpfc hba data structure.
8914 * This routine is invoked to enable the MSI-X interrupt vectors to device
8915 * with SLI-4 interface spec. The kernel function pci_enable_msix_range()
8916 * is called to enable the MSI-X vectors. The device driver is responsible
8917 * for calling the individual request_irq() to register each MSI-X vector
8918 * with a interrupt handler, which is done in this function. Note that
8919 * later when device is unloading, the driver should always call free_irq()
8920 * on all MSI-X vectors it has done request_irq() on before calling
8921 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8922 * will be left with MSI-X enabled and leaks its vectors.
8926 * other values - error
8929 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8931 int vectors, rc, index;
8933 /* Set up MSI-X multi-message vectors */
8934 for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8935 phba->sli4_hba.msix_entries[index].entry = index;
8937 /* Configure MSI-X capability structure */
8938 vectors = phba->cfg_fcp_io_channel;
8939 if (phba->cfg_fof) {
8940 phba->sli4_hba.msix_entries[index].entry = index;
8943 rc = pci_enable_msix_range(phba->pcidev, phba->sli4_hba.msix_entries,
8946 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8947 "0484 PCI enable MSI-X failed (%d)\n", rc);
8952 /* Log MSI-X vector assignment */
8953 for (index = 0; index < vectors; index++)
8954 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8955 "0489 MSI-X entry[%d]: vector=x%x "
8956 "message=%d\n", index,
8957 phba->sli4_hba.msix_entries[index].vector,
8958 phba->sli4_hba.msix_entries[index].entry);
8960 /* Assign MSI-X vectors to interrupt handlers */
8961 for (index = 0; index < vectors; index++) {
8962 memset(&phba->sli4_hba.handler_name[index], 0, 16);
8963 snprintf((char *)&phba->sli4_hba.handler_name[index],
8964 LPFC_SLI4_HANDLER_NAME_SZ,
8965 LPFC_DRIVER_HANDLER_NAME"%d", index);
8967 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8968 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8969 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
8970 if (phba->cfg_fof && (index == (vectors - 1)))
8972 phba->sli4_hba.msix_entries[index].vector,
8973 &lpfc_sli4_fof_intr_handler, 0,
8974 (char *)&phba->sli4_hba.handler_name[index],
8975 &phba->sli4_hba.fcp_eq_hdl[index]);
8978 phba->sli4_hba.msix_entries[index].vector,
8979 &lpfc_sli4_hba_intr_handler, 0,
8980 (char *)&phba->sli4_hba.handler_name[index],
8981 &phba->sli4_hba.fcp_eq_hdl[index]);
8983 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8984 "0486 MSI-X fast-path (%d) "
8985 "request_irq failed (%d)\n", index, rc);
8993 if (vectors != phba->cfg_fcp_io_channel) {
8994 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8995 "3238 Reducing IO channels to match number of "
8996 "MSI-X vectors, requested %d got %d\n",
8997 phba->cfg_fcp_io_channel, vectors);
8998 phba->cfg_fcp_io_channel = vectors;
9001 if (!shost_use_blk_mq(lpfc_shost_from_vport(phba->pport)))
9002 lpfc_sli4_set_affinity(phba, vectors);
9006 /* free the irq already requested */
9007 for (--index; index >= 0; index--) {
9008 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
9010 free_irq(phba->sli4_hba.msix_entries[index].vector,
9011 &phba->sli4_hba.fcp_eq_hdl[index]);
9014 /* Unconfigure MSI-X capability structure */
9015 pci_disable_msix(phba->pcidev);
9022 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
9023 * @phba: pointer to lpfc hba data structure.
9025 * This routine is invoked to release the MSI-X vectors and then disable the
9026 * MSI-X interrupt mode to device with SLI-4 interface spec.
9029 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
9033 /* Free up MSI-X multi-message vectors */
9034 for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9035 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
9037 free_irq(phba->sli4_hba.msix_entries[index].vector,
9038 &phba->sli4_hba.fcp_eq_hdl[index]);
9040 if (phba->cfg_fof) {
9041 free_irq(phba->sli4_hba.msix_entries[index].vector,
9042 &phba->sli4_hba.fcp_eq_hdl[index]);
9045 pci_disable_msix(phba->pcidev);
9051 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
9052 * @phba: pointer to lpfc hba data structure.
9054 * This routine is invoked to enable the MSI interrupt mode to device with
9055 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
9056 * to enable the MSI vector. The device driver is responsible for calling
9057 * the request_irq() to register MSI vector with a interrupt the handler,
9058 * which is done in this function.
9062 * other values - error
9065 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
9069 rc = pci_enable_msi(phba->pcidev);
9071 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9072 "0487 PCI enable MSI mode success.\n");
9074 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9075 "0488 PCI enable MSI mode failed (%d)\n", rc);
9079 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9080 0, LPFC_DRIVER_NAME, phba);
9082 pci_disable_msi(phba->pcidev);
9083 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9084 "0490 MSI request_irq failed (%d)\n", rc);
9088 for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9089 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9090 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9093 if (phba->cfg_fof) {
9094 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9095 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9101 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
9102 * @phba: pointer to lpfc hba data structure.
9104 * This routine is invoked to disable the MSI interrupt mode to device with
9105 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
9106 * done request_irq() on before calling pci_disable_msi(). Failure to do so
9107 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
9111 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
9113 free_irq(phba->pcidev->irq, phba);
9114 pci_disable_msi(phba->pcidev);
9119 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
9120 * @phba: pointer to lpfc hba data structure.
9122 * This routine is invoked to enable device interrupt and associate driver's
9123 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
9124 * interface spec. Depends on the interrupt mode configured to the driver,
9125 * the driver will try to fallback from the configured interrupt mode to an
9126 * interrupt mode which is supported by the platform, kernel, and device in
9128 * MSI-X -> MSI -> IRQ.
9132 * other values - error
9135 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9137 uint32_t intr_mode = LPFC_INTR_ERROR;
9140 if (cfg_mode == 2) {
9141 /* Preparation before conf_msi mbox cmd */
9144 /* Now, try to enable MSI-X interrupt mode */
9145 retval = lpfc_sli4_enable_msix(phba);
9147 /* Indicate initialization to MSI-X mode */
9148 phba->intr_type = MSIX;
9154 /* Fallback to MSI if MSI-X initialization failed */
9155 if (cfg_mode >= 1 && phba->intr_type == NONE) {
9156 retval = lpfc_sli4_enable_msi(phba);
9158 /* Indicate initialization to MSI mode */
9159 phba->intr_type = MSI;
9164 /* Fallback to INTx if both MSI-X/MSI initalization failed */
9165 if (phba->intr_type == NONE) {
9166 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9167 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9169 /* Indicate initialization to INTx mode */
9170 phba->intr_type = INTx;
9172 for (index = 0; index < phba->cfg_fcp_io_channel;
9174 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9175 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9176 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9179 if (phba->cfg_fof) {
9180 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9181 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9182 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9191 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
9192 * @phba: pointer to lpfc hba data structure.
9194 * This routine is invoked to disable device interrupt and disassociate
9195 * the driver's interrupt handler(s) from interrupt vector(s) to device
9196 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
9197 * will release the interrupt vector(s) for the message signaled interrupt.
9200 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
9202 /* Disable the currently initialized interrupt mode */
9203 if (phba->intr_type == MSIX)
9204 lpfc_sli4_disable_msix(phba);
9205 else if (phba->intr_type == MSI)
9206 lpfc_sli4_disable_msi(phba);
9207 else if (phba->intr_type == INTx)
9208 free_irq(phba->pcidev->irq, phba);
9210 /* Reset interrupt management states */
9211 phba->intr_type = NONE;
9212 phba->sli.slistat.sli_intr = 0;
9218 * lpfc_unset_hba - Unset SLI3 hba device initialization
9219 * @phba: pointer to lpfc hba data structure.
9221 * This routine is invoked to unset the HBA device initialization steps to
9222 * a device with SLI-3 interface spec.
9225 lpfc_unset_hba(struct lpfc_hba *phba)
9227 struct lpfc_vport *vport = phba->pport;
9228 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
9230 spin_lock_irq(shost->host_lock);
9231 vport->load_flag |= FC_UNLOADING;
9232 spin_unlock_irq(shost->host_lock);
9234 kfree(phba->vpi_bmask);
9235 kfree(phba->vpi_ids);
9237 lpfc_stop_hba_timers(phba);
9239 phba->pport->work_port_events = 0;
9241 lpfc_sli_hba_down(phba);
9243 lpfc_sli_brdrestart(phba);
9245 lpfc_sli_disable_intr(phba);
9251 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
9252 * @phba: Pointer to HBA context object.
9254 * This function is called in the SLI4 code path to wait for completion
9255 * of device's XRIs exchange busy. It will check the XRI exchange busy
9256 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
9257 * that, it will check the XRI exchange busy on outstanding FCP and ELS
9258 * I/Os every 30 seconds, log error message, and wait forever. Only when
9259 * all XRI exchange busy complete, the driver unload shall proceed with
9260 * invoking the function reset ioctl mailbox command to the CNA and the
9261 * the rest of the driver unload resource release.
9264 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
9267 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9268 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9270 while (!fcp_xri_cmpl || !els_xri_cmpl) {
9271 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
9273 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9274 "2877 FCP XRI exchange busy "
9275 "wait time: %d seconds.\n",
9278 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9279 "2878 ELS XRI exchange busy "
9280 "wait time: %d seconds.\n",
9282 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
9283 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
9285 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
9286 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
9289 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9291 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9296 * lpfc_sli4_hba_unset - Unset the fcoe hba
9297 * @phba: Pointer to HBA context object.
9299 * This function is called in the SLI4 code path to reset the HBA's FCoE
9300 * function. The caller is not required to hold any lock. This routine
9301 * issues PCI function reset mailbox command to reset the FCoE function.
9302 * At the end of the function, it calls lpfc_hba_down_post function to
9303 * free any pending commands.
9306 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
9309 LPFC_MBOXQ_t *mboxq;
9310 struct pci_dev *pdev = phba->pcidev;
9312 lpfc_stop_hba_timers(phba);
9313 phba->sli4_hba.intr_enable = 0;
9316 * Gracefully wait out the potential current outstanding asynchronous
9320 /* First, block any pending async mailbox command from posted */
9321 spin_lock_irq(&phba->hbalock);
9322 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
9323 spin_unlock_irq(&phba->hbalock);
9324 /* Now, trying to wait it out if we can */
9325 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9327 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
9330 /* Forcefully release the outstanding mailbox command if timed out */
9331 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9332 spin_lock_irq(&phba->hbalock);
9333 mboxq = phba->sli.mbox_active;
9334 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
9335 __lpfc_mbox_cmpl_put(phba, mboxq);
9336 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9337 phba->sli.mbox_active = NULL;
9338 spin_unlock_irq(&phba->hbalock);
9341 /* Abort all iocbs associated with the hba */
9342 lpfc_sli_hba_iocb_abort(phba);
9344 /* Wait for completion of device XRI exchange busy */
9345 lpfc_sli4_xri_exchange_busy_wait(phba);
9347 /* Disable PCI subsystem interrupt */
9348 lpfc_sli4_disable_intr(phba);
9350 /* Disable SR-IOV if enabled */
9351 if (phba->cfg_sriov_nr_virtfn)
9352 pci_disable_sriov(pdev);
9354 /* Stop kthread signal shall trigger work_done one more time */
9355 kthread_stop(phba->worker_thread);
9357 /* Reset SLI4 HBA FCoE function */
9358 lpfc_pci_function_reset(phba);
9359 lpfc_sli4_queue_destroy(phba);
9361 /* Stop the SLI4 device port */
9362 phba->pport->work_port_events = 0;
9366 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
9367 * @phba: Pointer to HBA context object.
9368 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9370 * This function is called in the SLI4 code path to read the port's
9371 * sli4 capabilities.
9373 * This function may be be called from any context that can block-wait
9374 * for the completion. The expectation is that this routine is called
9375 * typically from probe_one or from the online routine.
9378 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9381 struct lpfc_mqe *mqe;
9382 struct lpfc_pc_sli4_params *sli4_params;
9386 mqe = &mboxq->u.mqe;
9388 /* Read the port's SLI4 Parameters port capabilities */
9389 lpfc_pc_sli4_params(mboxq);
9390 if (!phba->sli4_hba.intr_enable)
9391 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9393 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9394 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9400 sli4_params = &phba->sli4_hba.pc_sli4_params;
9401 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
9402 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
9403 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
9404 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
9405 &mqe->un.sli4_params);
9406 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
9407 &mqe->un.sli4_params);
9408 sli4_params->proto_types = mqe->un.sli4_params.word3;
9409 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
9410 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
9411 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
9412 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
9413 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
9414 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
9415 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
9416 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
9417 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
9418 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
9419 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
9420 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
9421 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
9422 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
9423 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
9424 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
9425 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
9426 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
9427 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
9428 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
9430 /* Make sure that sge_supp_len can be handled by the driver */
9431 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9432 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9438 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
9439 * @phba: Pointer to HBA context object.
9440 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9442 * This function is called in the SLI4 code path to read the port's
9443 * sli4 capabilities.
9445 * This function may be be called from any context that can block-wait
9446 * for the completion. The expectation is that this routine is called
9447 * typically from probe_one or from the online routine.
9450 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9453 struct lpfc_mqe *mqe = &mboxq->u.mqe;
9454 struct lpfc_pc_sli4_params *sli4_params;
9457 struct lpfc_sli4_parameters *mbx_sli4_parameters;
9460 * By default, the driver assumes the SLI4 port requires RPI
9461 * header postings. The SLI4_PARAM response will correct this
9464 phba->sli4_hba.rpi_hdrs_in_use = 1;
9466 /* Read the port's SLI4 Config Parameters */
9467 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
9468 sizeof(struct lpfc_sli4_cfg_mhdr));
9469 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9470 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
9471 length, LPFC_SLI4_MBX_EMBED);
9472 if (!phba->sli4_hba.intr_enable)
9473 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9475 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9476 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9480 sli4_params = &phba->sli4_hba.pc_sli4_params;
9481 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
9482 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
9483 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
9484 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
9485 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
9486 mbx_sli4_parameters);
9487 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
9488 mbx_sli4_parameters);
9489 if (bf_get(cfg_phwq, mbx_sli4_parameters))
9490 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
9492 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
9493 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
9494 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
9495 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
9496 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
9497 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
9498 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
9499 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
9500 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
9501 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
9502 mbx_sli4_parameters);
9503 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
9504 mbx_sli4_parameters);
9505 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
9506 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
9508 /* Make sure that sge_supp_len can be handled by the driver */
9509 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9510 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9516 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
9517 * @pdev: pointer to PCI device
9518 * @pid: pointer to PCI device identifier
9520 * This routine is to be called to attach a device with SLI-3 interface spec
9521 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9522 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9523 * information of the device and driver to see if the driver state that it can
9524 * support this kind of device. If the match is successful, the driver core
9525 * invokes this routine. If this routine determines it can claim the HBA, it
9526 * does all the initialization that it needs to do to handle the HBA properly.
9529 * 0 - driver can claim the device
9530 * negative value - driver can not claim the device
9533 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
9535 struct lpfc_hba *phba;
9536 struct lpfc_vport *vport = NULL;
9537 struct Scsi_Host *shost = NULL;
9539 uint32_t cfg_mode, intr_mode;
9541 /* Allocate memory for HBA structure */
9542 phba = lpfc_hba_alloc(pdev);
9546 /* Perform generic PCI device enabling operation */
9547 error = lpfc_enable_pci_dev(phba);
9551 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
9552 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
9554 goto out_disable_pci_dev;
9556 /* Set up SLI-3 specific device PCI memory space */
9557 error = lpfc_sli_pci_mem_setup(phba);
9559 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9560 "1402 Failed to set up pci memory space.\n");
9561 goto out_disable_pci_dev;
9564 /* Set up phase-1 common device driver resources */
9565 error = lpfc_setup_driver_resource_phase1(phba);
9567 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9568 "1403 Failed to set up driver resource.\n");
9569 goto out_unset_pci_mem_s3;
9572 /* Set up SLI-3 specific device driver resources */
9573 error = lpfc_sli_driver_resource_setup(phba);
9575 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9576 "1404 Failed to set up driver resource.\n");
9577 goto out_unset_pci_mem_s3;
9580 /* Initialize and populate the iocb list per host */
9581 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
9583 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9584 "1405 Failed to initialize iocb list.\n");
9585 goto out_unset_driver_resource_s3;
9588 /* Set up common device driver resources */
9589 error = lpfc_setup_driver_resource_phase2(phba);
9591 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9592 "1406 Failed to set up driver resource.\n");
9593 goto out_free_iocb_list;
9596 /* Get the default values for Model Name and Description */
9597 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9599 /* Create SCSI host to the physical port */
9600 error = lpfc_create_shost(phba);
9602 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9603 "1407 Failed to create scsi host.\n");
9604 goto out_unset_driver_resource;
9607 /* Configure sysfs attributes */
9608 vport = phba->pport;
9609 error = lpfc_alloc_sysfs_attr(vport);
9611 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9612 "1476 Failed to allocate sysfs attr\n");
9613 goto out_destroy_shost;
9616 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9617 /* Now, trying to enable interrupt and bring up the device */
9618 cfg_mode = phba->cfg_use_msi;
9620 /* Put device to a known state before enabling interrupt */
9621 lpfc_stop_port(phba);
9622 /* Configure and enable interrupt */
9623 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
9624 if (intr_mode == LPFC_INTR_ERROR) {
9625 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9626 "0431 Failed to enable interrupt.\n");
9628 goto out_free_sysfs_attr;
9630 /* SLI-3 HBA setup */
9631 if (lpfc_sli_hba_setup(phba)) {
9632 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9633 "1477 Failed to set up hba\n");
9635 goto out_remove_device;
9638 /* Wait 50ms for the interrupts of previous mailbox commands */
9640 /* Check active interrupts on message signaled interrupts */
9641 if (intr_mode == 0 ||
9642 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
9643 /* Log the current active interrupt mode */
9644 phba->intr_mode = intr_mode;
9645 lpfc_log_intr_mode(phba, intr_mode);
9648 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9649 "0447 Configure interrupt mode (%d) "
9650 "failed active interrupt test.\n",
9652 /* Disable the current interrupt mode */
9653 lpfc_sli_disable_intr(phba);
9654 /* Try next level of interrupt mode */
9655 cfg_mode = --intr_mode;
9659 /* Perform post initialization setup */
9660 lpfc_post_init_setup(phba);
9662 /* Check if there are static vports to be created. */
9663 lpfc_create_static_vport(phba);
9668 lpfc_unset_hba(phba);
9669 out_free_sysfs_attr:
9670 lpfc_free_sysfs_attr(vport);
9672 lpfc_destroy_shost(phba);
9673 out_unset_driver_resource:
9674 lpfc_unset_driver_resource_phase2(phba);
9676 lpfc_free_iocb_list(phba);
9677 out_unset_driver_resource_s3:
9678 lpfc_sli_driver_resource_unset(phba);
9679 out_unset_pci_mem_s3:
9680 lpfc_sli_pci_mem_unset(phba);
9681 out_disable_pci_dev:
9682 lpfc_disable_pci_dev(phba);
9684 scsi_host_put(shost);
9686 lpfc_hba_free(phba);
9691 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
9692 * @pdev: pointer to PCI device
9694 * This routine is to be called to disattach a device with SLI-3 interface
9695 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9696 * removed from PCI bus, it performs all the necessary cleanup for the HBA
9697 * device to be removed from the PCI subsystem properly.
9700 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
9702 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9703 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9704 struct lpfc_vport **vports;
9705 struct lpfc_hba *phba = vport->phba;
9707 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
9709 spin_lock_irq(&phba->hbalock);
9710 vport->load_flag |= FC_UNLOADING;
9711 spin_unlock_irq(&phba->hbalock);
9713 lpfc_free_sysfs_attr(vport);
9715 /* Release all the vports against this physical port */
9716 vports = lpfc_create_vport_work_array(phba);
9718 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9719 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9721 fc_vport_terminate(vports[i]->fc_vport);
9723 lpfc_destroy_vport_work_array(phba, vports);
9725 /* Remove FC host and then SCSI host with the physical port */
9726 fc_remove_host(shost);
9727 scsi_remove_host(shost);
9728 lpfc_cleanup(vport);
9731 * Bring down the SLI Layer. This step disable all interrupts,
9732 * clears the rings, discards all mailbox commands, and resets
9736 /* HBA interrupt will be disabled after this call */
9737 lpfc_sli_hba_down(phba);
9738 /* Stop kthread signal shall trigger work_done one more time */
9739 kthread_stop(phba->worker_thread);
9740 /* Final cleanup of txcmplq and reset the HBA */
9741 lpfc_sli_brdrestart(phba);
9743 kfree(phba->vpi_bmask);
9744 kfree(phba->vpi_ids);
9746 lpfc_stop_hba_timers(phba);
9747 spin_lock_irq(&phba->hbalock);
9748 list_del_init(&vport->listentry);
9749 spin_unlock_irq(&phba->hbalock);
9751 lpfc_debugfs_terminate(vport);
9753 /* Disable SR-IOV if enabled */
9754 if (phba->cfg_sriov_nr_virtfn)
9755 pci_disable_sriov(pdev);
9757 /* Disable interrupt */
9758 lpfc_sli_disable_intr(phba);
9760 scsi_host_put(shost);
9763 * Call scsi_free before mem_free since scsi bufs are released to their
9764 * corresponding pools here.
9766 lpfc_scsi_free(phba);
9767 lpfc_mem_free_all(phba);
9769 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9770 phba->hbqslimp.virt, phba->hbqslimp.phys);
9772 /* Free resources associated with SLI2 interface */
9773 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9774 phba->slim2p.virt, phba->slim2p.phys);
9776 /* unmap adapter SLIM and Control Registers */
9777 iounmap(phba->ctrl_regs_memmap_p);
9778 iounmap(phba->slim_memmap_p);
9780 lpfc_hba_free(phba);
9782 pci_release_selected_regions(pdev, bars);
9783 pci_disable_device(pdev);
9787 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9788 * @pdev: pointer to PCI device
9789 * @msg: power management message
9791 * This routine is to be called from the kernel's PCI subsystem to support
9792 * system Power Management (PM) to device with SLI-3 interface spec. When
9793 * PM invokes this method, it quiesces the device by stopping the driver's
9794 * worker thread for the device, turning off device's interrupt and DMA,
9795 * and bring the device offline. Note that as the driver implements the
9796 * minimum PM requirements to a power-aware driver's PM support for the
9797 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9798 * to the suspend() method call will be treated as SUSPEND and the driver will
9799 * fully reinitialize its device during resume() method call, the driver will
9800 * set device to PCI_D3hot state in PCI config space instead of setting it
9801 * according to the @msg provided by the PM.
9804 * 0 - driver suspended the device
9808 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9810 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9811 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9813 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9814 "0473 PCI device Power Management suspend.\n");
9816 /* Bring down the device */
9817 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9819 kthread_stop(phba->worker_thread);
9821 /* Disable interrupt from device */
9822 lpfc_sli_disable_intr(phba);
9824 /* Save device state to PCI config space */
9825 pci_save_state(pdev);
9826 pci_set_power_state(pdev, PCI_D3hot);
9832 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9833 * @pdev: pointer to PCI device
9835 * This routine is to be called from the kernel's PCI subsystem to support
9836 * system Power Management (PM) to device with SLI-3 interface spec. When PM
9837 * invokes this method, it restores the device's PCI config space state and
9838 * fully reinitializes the device and brings it online. Note that as the
9839 * driver implements the minimum PM requirements to a power-aware driver's
9840 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9841 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9842 * driver will fully reinitialize its device during resume() method call,
9843 * the device will be set to PCI_D0 directly in PCI config space before
9844 * restoring the state.
9847 * 0 - driver suspended the device
9851 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9853 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9854 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9858 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9859 "0452 PCI device Power Management resume.\n");
9861 /* Restore device state from PCI config space */
9862 pci_set_power_state(pdev, PCI_D0);
9863 pci_restore_state(pdev);
9866 * As the new kernel behavior of pci_restore_state() API call clears
9867 * device saved_state flag, need to save the restored state again.
9869 pci_save_state(pdev);
9871 if (pdev->is_busmaster)
9872 pci_set_master(pdev);
9874 /* Startup the kernel thread for this host adapter. */
9875 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9876 "lpfc_worker_%d", phba->brd_no);
9877 if (IS_ERR(phba->worker_thread)) {
9878 error = PTR_ERR(phba->worker_thread);
9879 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9880 "0434 PM resume failed to start worker "
9881 "thread: error=x%x.\n", error);
9885 /* Configure and enable interrupt */
9886 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9887 if (intr_mode == LPFC_INTR_ERROR) {
9888 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9889 "0430 PM resume Failed to enable interrupt\n");
9892 phba->intr_mode = intr_mode;
9894 /* Restart HBA and bring it online */
9895 lpfc_sli_brdrestart(phba);
9898 /* Log the current active interrupt mode */
9899 lpfc_log_intr_mode(phba, phba->intr_mode);
9905 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9906 * @phba: pointer to lpfc hba data structure.
9908 * This routine is called to prepare the SLI3 device for PCI slot recover. It
9909 * aborts all the outstanding SCSI I/Os to the pci device.
9912 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9914 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9915 "2723 PCI channel I/O abort preparing for recovery\n");
9918 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9919 * and let the SCSI mid-layer to retry them to recover.
9921 lpfc_sli_abort_fcp_rings(phba);
9925 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9926 * @phba: pointer to lpfc hba data structure.
9928 * This routine is called to prepare the SLI3 device for PCI slot reset. It
9929 * disables the device interrupt and pci device, and aborts the internal FCP
9933 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9935 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9936 "2710 PCI channel disable preparing for reset\n");
9938 /* Block any management I/Os to the device */
9939 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
9941 /* Block all SCSI devices' I/Os on the host */
9942 lpfc_scsi_dev_block(phba);
9944 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9945 lpfc_sli_flush_fcp_rings(phba);
9947 /* stop all timers */
9948 lpfc_stop_hba_timers(phba);
9950 /* Disable interrupt and pci device */
9951 lpfc_sli_disable_intr(phba);
9952 pci_disable_device(phba->pcidev);
9956 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9957 * @phba: pointer to lpfc hba data structure.
9959 * This routine is called to prepare the SLI3 device for PCI slot permanently
9960 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9964 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9966 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9967 "2711 PCI channel permanent disable for failure\n");
9968 /* Block all SCSI devices' I/Os on the host */
9969 lpfc_scsi_dev_block(phba);
9971 /* stop all timers */
9972 lpfc_stop_hba_timers(phba);
9974 /* Clean up all driver's outstanding SCSI I/Os */
9975 lpfc_sli_flush_fcp_rings(phba);
9979 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9980 * @pdev: pointer to PCI device.
9981 * @state: the current PCI connection state.
9983 * This routine is called from the PCI subsystem for I/O error handling to
9984 * device with SLI-3 interface spec. This function is called by the PCI
9985 * subsystem after a PCI bus error affecting this device has been detected.
9986 * When this function is invoked, it will need to stop all the I/Os and
9987 * interrupt(s) to the device. Once that is done, it will return
9988 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9992 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
9993 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9994 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9996 static pci_ers_result_t
9997 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9999 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10000 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10003 case pci_channel_io_normal:
10004 /* Non-fatal error, prepare for recovery */
10005 lpfc_sli_prep_dev_for_recover(phba);
10006 return PCI_ERS_RESULT_CAN_RECOVER;
10007 case pci_channel_io_frozen:
10008 /* Fatal error, prepare for slot reset */
10009 lpfc_sli_prep_dev_for_reset(phba);
10010 return PCI_ERS_RESULT_NEED_RESET;
10011 case pci_channel_io_perm_failure:
10012 /* Permanent failure, prepare for device down */
10013 lpfc_sli_prep_dev_for_perm_failure(phba);
10014 return PCI_ERS_RESULT_DISCONNECT;
10016 /* Unknown state, prepare and request slot reset */
10017 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10018 "0472 Unknown PCI error state: x%x\n", state);
10019 lpfc_sli_prep_dev_for_reset(phba);
10020 return PCI_ERS_RESULT_NEED_RESET;
10025 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
10026 * @pdev: pointer to PCI device.
10028 * This routine is called from the PCI subsystem for error handling to
10029 * device with SLI-3 interface spec. This is called after PCI bus has been
10030 * reset to restart the PCI card from scratch, as if from a cold-boot.
10031 * During the PCI subsystem error recovery, after driver returns
10032 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10033 * recovery and then call this routine before calling the .resume method
10034 * to recover the device. This function will initialize the HBA device,
10035 * enable the interrupt, but it will just put the HBA to offline state
10036 * without passing any I/O traffic.
10039 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10040 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10042 static pci_ers_result_t
10043 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
10045 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10046 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10047 struct lpfc_sli *psli = &phba->sli;
10048 uint32_t intr_mode;
10050 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10051 if (pci_enable_device_mem(pdev)) {
10052 printk(KERN_ERR "lpfc: Cannot re-enable "
10053 "PCI device after reset.\n");
10054 return PCI_ERS_RESULT_DISCONNECT;
10057 pci_restore_state(pdev);
10060 * As the new kernel behavior of pci_restore_state() API call clears
10061 * device saved_state flag, need to save the restored state again.
10063 pci_save_state(pdev);
10065 if (pdev->is_busmaster)
10066 pci_set_master(pdev);
10068 spin_lock_irq(&phba->hbalock);
10069 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10070 spin_unlock_irq(&phba->hbalock);
10072 /* Configure and enable interrupt */
10073 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10074 if (intr_mode == LPFC_INTR_ERROR) {
10075 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10076 "0427 Cannot re-enable interrupt after "
10078 return PCI_ERS_RESULT_DISCONNECT;
10080 phba->intr_mode = intr_mode;
10082 /* Take device offline, it will perform cleanup */
10083 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10084 lpfc_offline(phba);
10085 lpfc_sli_brdrestart(phba);
10087 /* Log the current active interrupt mode */
10088 lpfc_log_intr_mode(phba, phba->intr_mode);
10090 return PCI_ERS_RESULT_RECOVERED;
10094 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
10095 * @pdev: pointer to PCI device
10097 * This routine is called from the PCI subsystem for error handling to device
10098 * with SLI-3 interface spec. It is called when kernel error recovery tells
10099 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10100 * error recovery. After this call, traffic can start to flow from this device
10104 lpfc_io_resume_s3(struct pci_dev *pdev)
10106 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10107 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10109 /* Bring device online, it will be no-op for non-fatal error resume */
10112 /* Clean up Advanced Error Reporting (AER) if needed */
10113 if (phba->hba_flag & HBA_AER_ENABLED)
10114 pci_cleanup_aer_uncorrect_error_status(pdev);
10118 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
10119 * @phba: pointer to lpfc hba data structure.
10121 * returns the number of ELS/CT IOCBs to reserve
10124 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
10126 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
10128 if (phba->sli_rev == LPFC_SLI_REV4) {
10129 if (max_xri <= 100)
10131 else if (max_xri <= 256)
10133 else if (max_xri <= 512)
10135 else if (max_xri <= 1024)
10137 else if (max_xri <= 1536)
10139 else if (max_xri <= 2048)
10148 * lpfc_write_firmware - attempt to write a firmware image to the port
10149 * @fw: pointer to firmware image returned from request_firmware.
10150 * @phba: pointer to lpfc hba data structure.
10154 lpfc_write_firmware(const struct firmware *fw, void *context)
10156 struct lpfc_hba *phba = (struct lpfc_hba *)context;
10157 char fwrev[FW_REV_STR_SIZE];
10158 struct lpfc_grp_hdr *image;
10159 struct list_head dma_buffer_list;
10161 struct lpfc_dmabuf *dmabuf, *next;
10162 uint32_t offset = 0, temp_offset = 0;
10164 /* It can be null in no-wait mode, sanity check */
10169 image = (struct lpfc_grp_hdr *)fw->data;
10171 INIT_LIST_HEAD(&dma_buffer_list);
10172 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
10173 (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
10174 LPFC_FILE_TYPE_GROUP) ||
10175 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
10176 (be32_to_cpu(image->size) != fw->size)) {
10177 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10178 "3022 Invalid FW image found. "
10179 "Magic:%x Type:%x ID:%x\n",
10180 be32_to_cpu(image->magic_number),
10181 bf_get_be32(lpfc_grp_hdr_file_type, image),
10182 bf_get_be32(lpfc_grp_hdr_id, image));
10186 lpfc_decode_firmware_rev(phba, fwrev, 1);
10187 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
10188 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10189 "3023 Updating Firmware, Current Version:%s "
10190 "New Version:%s\n",
10191 fwrev, image->revision);
10192 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
10193 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
10199 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
10203 if (!dmabuf->virt) {
10208 list_add_tail(&dmabuf->list, &dma_buffer_list);
10210 while (offset < fw->size) {
10211 temp_offset = offset;
10212 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
10213 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
10214 memcpy(dmabuf->virt,
10215 fw->data + temp_offset,
10216 fw->size - temp_offset);
10217 temp_offset = fw->size;
10220 memcpy(dmabuf->virt, fw->data + temp_offset,
10222 temp_offset += SLI4_PAGE_SIZE;
10224 rc = lpfc_wr_object(phba, &dma_buffer_list,
10225 (fw->size - offset), &offset);
10233 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
10234 list_del(&dmabuf->list);
10235 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
10236 dmabuf->virt, dmabuf->phys);
10239 release_firmware(fw);
10241 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10242 "3024 Firmware update done: %d.\n", rc);
10247 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
10248 * @phba: pointer to lpfc hba data structure.
10250 * This routine is called to perform Linux generic firmware upgrade on device
10251 * that supports such feature.
10254 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
10256 uint8_t file_name[ELX_MODEL_NAME_SIZE];
10258 const struct firmware *fw;
10260 /* Only supported on SLI4 interface type 2 for now */
10261 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
10262 LPFC_SLI_INTF_IF_TYPE_2)
10265 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
10267 if (fw_upgrade == INT_FW_UPGRADE) {
10268 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
10269 file_name, &phba->pcidev->dev,
10270 GFP_KERNEL, (void *)phba,
10271 lpfc_write_firmware);
10272 } else if (fw_upgrade == RUN_FW_UPGRADE) {
10273 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
10275 lpfc_write_firmware(fw, (void *)phba);
10284 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
10285 * @pdev: pointer to PCI device
10286 * @pid: pointer to PCI device identifier
10288 * This routine is called from the kernel's PCI subsystem to device with
10289 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10290 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10291 * information of the device and driver to see if the driver state that it
10292 * can support this kind of device. If the match is successful, the driver
10293 * core invokes this routine. If this routine determines it can claim the HBA,
10294 * it does all the initialization that it needs to do to handle the HBA
10298 * 0 - driver can claim the device
10299 * negative value - driver can not claim the device
10302 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
10304 struct lpfc_hba *phba;
10305 struct lpfc_vport *vport = NULL;
10306 struct Scsi_Host *shost = NULL;
10308 uint32_t cfg_mode, intr_mode;
10309 int adjusted_fcp_io_channel;
10311 /* Allocate memory for HBA structure */
10312 phba = lpfc_hba_alloc(pdev);
10316 /* Perform generic PCI device enabling operation */
10317 error = lpfc_enable_pci_dev(phba);
10319 goto out_free_phba;
10321 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
10322 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
10324 goto out_disable_pci_dev;
10326 /* Set up SLI-4 specific device PCI memory space */
10327 error = lpfc_sli4_pci_mem_setup(phba);
10329 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10330 "1410 Failed to set up pci memory space.\n");
10331 goto out_disable_pci_dev;
10334 /* Set up phase-1 common device driver resources */
10335 error = lpfc_setup_driver_resource_phase1(phba);
10337 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10338 "1411 Failed to set up driver resource.\n");
10339 goto out_unset_pci_mem_s4;
10342 /* Set up SLI-4 Specific device driver resources */
10343 error = lpfc_sli4_driver_resource_setup(phba);
10345 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10346 "1412 Failed to set up driver resource.\n");
10347 goto out_unset_pci_mem_s4;
10350 /* Initialize and populate the iocb list per host */
10352 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10353 "2821 initialize iocb list %d.\n",
10354 phba->cfg_iocb_cnt*1024);
10355 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
10358 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10359 "1413 Failed to initialize iocb list.\n");
10360 goto out_unset_driver_resource_s4;
10363 INIT_LIST_HEAD(&phba->active_rrq_list);
10364 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
10366 /* Set up common device driver resources */
10367 error = lpfc_setup_driver_resource_phase2(phba);
10369 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10370 "1414 Failed to set up driver resource.\n");
10371 goto out_free_iocb_list;
10374 /* Get the default values for Model Name and Description */
10375 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10377 /* Create SCSI host to the physical port */
10378 error = lpfc_create_shost(phba);
10380 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10381 "1415 Failed to create scsi host.\n");
10382 goto out_unset_driver_resource;
10385 /* Configure sysfs attributes */
10386 vport = phba->pport;
10387 error = lpfc_alloc_sysfs_attr(vport);
10389 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10390 "1416 Failed to allocate sysfs attr\n");
10391 goto out_destroy_shost;
10394 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10395 /* Now, trying to enable interrupt and bring up the device */
10396 cfg_mode = phba->cfg_use_msi;
10398 /* Put device to a known state before enabling interrupt */
10399 lpfc_stop_port(phba);
10400 /* Configure and enable interrupt */
10401 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
10402 if (intr_mode == LPFC_INTR_ERROR) {
10403 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10404 "0426 Failed to enable interrupt.\n");
10406 goto out_free_sysfs_attr;
10408 /* Default to single EQ for non-MSI-X */
10409 if (phba->intr_type != MSIX)
10410 adjusted_fcp_io_channel = 1;
10412 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
10413 phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
10414 /* Set up SLI-4 HBA */
10415 if (lpfc_sli4_hba_setup(phba)) {
10416 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10417 "1421 Failed to set up hba\n");
10419 goto out_disable_intr;
10422 /* Log the current active interrupt mode */
10423 phba->intr_mode = intr_mode;
10424 lpfc_log_intr_mode(phba, intr_mode);
10426 /* Perform post initialization setup */
10427 lpfc_post_init_setup(phba);
10429 /* check for firmware upgrade or downgrade */
10430 if (phba->cfg_request_firmware_upgrade)
10431 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
10433 /* Check if there are static vports to be created. */
10434 lpfc_create_static_vport(phba);
10438 lpfc_sli4_disable_intr(phba);
10439 out_free_sysfs_attr:
10440 lpfc_free_sysfs_attr(vport);
10442 lpfc_destroy_shost(phba);
10443 out_unset_driver_resource:
10444 lpfc_unset_driver_resource_phase2(phba);
10445 out_free_iocb_list:
10446 lpfc_free_iocb_list(phba);
10447 out_unset_driver_resource_s4:
10448 lpfc_sli4_driver_resource_unset(phba);
10449 out_unset_pci_mem_s4:
10450 lpfc_sli4_pci_mem_unset(phba);
10451 out_disable_pci_dev:
10452 lpfc_disable_pci_dev(phba);
10454 scsi_host_put(shost);
10456 lpfc_hba_free(phba);
10461 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
10462 * @pdev: pointer to PCI device
10464 * This routine is called from the kernel's PCI subsystem to device with
10465 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10466 * removed from PCI bus, it performs all the necessary cleanup for the HBA
10467 * device to be removed from the PCI subsystem properly.
10470 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
10472 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10473 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10474 struct lpfc_vport **vports;
10475 struct lpfc_hba *phba = vport->phba;
10478 /* Mark the device unloading flag */
10479 spin_lock_irq(&phba->hbalock);
10480 vport->load_flag |= FC_UNLOADING;
10481 spin_unlock_irq(&phba->hbalock);
10483 /* Free the HBA sysfs attributes */
10484 lpfc_free_sysfs_attr(vport);
10486 /* Release all the vports against this physical port */
10487 vports = lpfc_create_vport_work_array(phba);
10488 if (vports != NULL)
10489 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10490 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10492 fc_vport_terminate(vports[i]->fc_vport);
10494 lpfc_destroy_vport_work_array(phba, vports);
10496 /* Remove FC host and then SCSI host with the physical port */
10497 fc_remove_host(shost);
10498 scsi_remove_host(shost);
10500 /* Perform cleanup on the physical port */
10501 lpfc_cleanup(vport);
10504 * Bring down the SLI Layer. This step disables all interrupts,
10505 * clears the rings, discards all mailbox commands, and resets
10506 * the HBA FCoE function.
10508 lpfc_debugfs_terminate(vport);
10509 lpfc_sli4_hba_unset(phba);
10511 spin_lock_irq(&phba->hbalock);
10512 list_del_init(&vport->listentry);
10513 spin_unlock_irq(&phba->hbalock);
10515 /* Perform scsi free before driver resource_unset since scsi
10516 * buffers are released to their corresponding pools here.
10518 lpfc_scsi_free(phba);
10520 lpfc_sli4_driver_resource_unset(phba);
10522 /* Unmap adapter Control and Doorbell registers */
10523 lpfc_sli4_pci_mem_unset(phba);
10525 /* Release PCI resources and disable device's PCI function */
10526 scsi_host_put(shost);
10527 lpfc_disable_pci_dev(phba);
10529 /* Finally, free the driver's device data structure */
10530 lpfc_hba_free(phba);
10536 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
10537 * @pdev: pointer to PCI device
10538 * @msg: power management message
10540 * This routine is called from the kernel's PCI subsystem to support system
10541 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
10542 * this method, it quiesces the device by stopping the driver's worker
10543 * thread for the device, turning off device's interrupt and DMA, and bring
10544 * the device offline. Note that as the driver implements the minimum PM
10545 * requirements to a power-aware driver's PM support for suspend/resume -- all
10546 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
10547 * method call will be treated as SUSPEND and the driver will fully
10548 * reinitialize its device during resume() method call, the driver will set
10549 * device to PCI_D3hot state in PCI config space instead of setting it
10550 * according to the @msg provided by the PM.
10553 * 0 - driver suspended the device
10557 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
10559 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10560 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10562 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10563 "2843 PCI device Power Management suspend.\n");
10565 /* Bring down the device */
10566 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10567 lpfc_offline(phba);
10568 kthread_stop(phba->worker_thread);
10570 /* Disable interrupt from device */
10571 lpfc_sli4_disable_intr(phba);
10572 lpfc_sli4_queue_destroy(phba);
10574 /* Save device state to PCI config space */
10575 pci_save_state(pdev);
10576 pci_set_power_state(pdev, PCI_D3hot);
10582 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
10583 * @pdev: pointer to PCI device
10585 * This routine is called from the kernel's PCI subsystem to support system
10586 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
10587 * this method, it restores the device's PCI config space state and fully
10588 * reinitializes the device and brings it online. Note that as the driver
10589 * implements the minimum PM requirements to a power-aware driver's PM for
10590 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10591 * to the suspend() method call will be treated as SUSPEND and the driver
10592 * will fully reinitialize its device during resume() method call, the device
10593 * will be set to PCI_D0 directly in PCI config space before restoring the
10597 * 0 - driver suspended the device
10601 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
10603 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10604 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10605 uint32_t intr_mode;
10608 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10609 "0292 PCI device Power Management resume.\n");
10611 /* Restore device state from PCI config space */
10612 pci_set_power_state(pdev, PCI_D0);
10613 pci_restore_state(pdev);
10616 * As the new kernel behavior of pci_restore_state() API call clears
10617 * device saved_state flag, need to save the restored state again.
10619 pci_save_state(pdev);
10621 if (pdev->is_busmaster)
10622 pci_set_master(pdev);
10624 /* Startup the kernel thread for this host adapter. */
10625 phba->worker_thread = kthread_run(lpfc_do_work, phba,
10626 "lpfc_worker_%d", phba->brd_no);
10627 if (IS_ERR(phba->worker_thread)) {
10628 error = PTR_ERR(phba->worker_thread);
10629 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10630 "0293 PM resume failed to start worker "
10631 "thread: error=x%x.\n", error);
10635 /* Configure and enable interrupt */
10636 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10637 if (intr_mode == LPFC_INTR_ERROR) {
10638 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10639 "0294 PM resume Failed to enable interrupt\n");
10642 phba->intr_mode = intr_mode;
10644 /* Restart HBA and bring it online */
10645 lpfc_sli_brdrestart(phba);
10648 /* Log the current active interrupt mode */
10649 lpfc_log_intr_mode(phba, phba->intr_mode);
10655 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
10656 * @phba: pointer to lpfc hba data structure.
10658 * This routine is called to prepare the SLI4 device for PCI slot recover. It
10659 * aborts all the outstanding SCSI I/Os to the pci device.
10662 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
10664 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10665 "2828 PCI channel I/O abort preparing for recovery\n");
10667 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10668 * and let the SCSI mid-layer to retry them to recover.
10670 lpfc_sli_abort_fcp_rings(phba);
10674 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
10675 * @phba: pointer to lpfc hba data structure.
10677 * This routine is called to prepare the SLI4 device for PCI slot reset. It
10678 * disables the device interrupt and pci device, and aborts the internal FCP
10682 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
10684 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10685 "2826 PCI channel disable preparing for reset\n");
10687 /* Block any management I/Os to the device */
10688 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
10690 /* Block all SCSI devices' I/Os on the host */
10691 lpfc_scsi_dev_block(phba);
10693 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10694 lpfc_sli_flush_fcp_rings(phba);
10696 /* stop all timers */
10697 lpfc_stop_hba_timers(phba);
10699 /* Disable interrupt and pci device */
10700 lpfc_sli4_disable_intr(phba);
10701 lpfc_sli4_queue_destroy(phba);
10702 pci_disable_device(phba->pcidev);
10706 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10707 * @phba: pointer to lpfc hba data structure.
10709 * This routine is called to prepare the SLI4 device for PCI slot permanently
10710 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10714 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10716 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10717 "2827 PCI channel permanent disable for failure\n");
10719 /* Block all SCSI devices' I/Os on the host */
10720 lpfc_scsi_dev_block(phba);
10722 /* stop all timers */
10723 lpfc_stop_hba_timers(phba);
10725 /* Clean up all driver's outstanding SCSI I/Os */
10726 lpfc_sli_flush_fcp_rings(phba);
10730 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10731 * @pdev: pointer to PCI device.
10732 * @state: the current PCI connection state.
10734 * This routine is called from the PCI subsystem for error handling to device
10735 * with SLI-4 interface spec. This function is called by the PCI subsystem
10736 * after a PCI bus error affecting this device has been detected. When this
10737 * function is invoked, it will need to stop all the I/Os and interrupt(s)
10738 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10739 * for the PCI subsystem to perform proper recovery as desired.
10742 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10743 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10745 static pci_ers_result_t
10746 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10748 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10749 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10752 case pci_channel_io_normal:
10753 /* Non-fatal error, prepare for recovery */
10754 lpfc_sli4_prep_dev_for_recover(phba);
10755 return PCI_ERS_RESULT_CAN_RECOVER;
10756 case pci_channel_io_frozen:
10757 /* Fatal error, prepare for slot reset */
10758 lpfc_sli4_prep_dev_for_reset(phba);
10759 return PCI_ERS_RESULT_NEED_RESET;
10760 case pci_channel_io_perm_failure:
10761 /* Permanent failure, prepare for device down */
10762 lpfc_sli4_prep_dev_for_perm_failure(phba);
10763 return PCI_ERS_RESULT_DISCONNECT;
10765 /* Unknown state, prepare and request slot reset */
10766 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10767 "2825 Unknown PCI error state: x%x\n", state);
10768 lpfc_sli4_prep_dev_for_reset(phba);
10769 return PCI_ERS_RESULT_NEED_RESET;
10774 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10775 * @pdev: pointer to PCI device.
10777 * This routine is called from the PCI subsystem for error handling to device
10778 * with SLI-4 interface spec. It is called after PCI bus has been reset to
10779 * restart the PCI card from scratch, as if from a cold-boot. During the
10780 * PCI subsystem error recovery, after the driver returns
10781 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10782 * recovery and then call this routine before calling the .resume method to
10783 * recover the device. This function will initialize the HBA device, enable
10784 * the interrupt, but it will just put the HBA to offline state without
10785 * passing any I/O traffic.
10788 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10789 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10791 static pci_ers_result_t
10792 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10794 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10795 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10796 struct lpfc_sli *psli = &phba->sli;
10797 uint32_t intr_mode;
10799 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10800 if (pci_enable_device_mem(pdev)) {
10801 printk(KERN_ERR "lpfc: Cannot re-enable "
10802 "PCI device after reset.\n");
10803 return PCI_ERS_RESULT_DISCONNECT;
10806 pci_restore_state(pdev);
10809 * As the new kernel behavior of pci_restore_state() API call clears
10810 * device saved_state flag, need to save the restored state again.
10812 pci_save_state(pdev);
10814 if (pdev->is_busmaster)
10815 pci_set_master(pdev);
10817 spin_lock_irq(&phba->hbalock);
10818 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10819 spin_unlock_irq(&phba->hbalock);
10821 /* Configure and enable interrupt */
10822 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10823 if (intr_mode == LPFC_INTR_ERROR) {
10824 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10825 "2824 Cannot re-enable interrupt after "
10827 return PCI_ERS_RESULT_DISCONNECT;
10829 phba->intr_mode = intr_mode;
10831 /* Log the current active interrupt mode */
10832 lpfc_log_intr_mode(phba, phba->intr_mode);
10834 return PCI_ERS_RESULT_RECOVERED;
10838 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10839 * @pdev: pointer to PCI device
10841 * This routine is called from the PCI subsystem for error handling to device
10842 * with SLI-4 interface spec. It is called when kernel error recovery tells
10843 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10844 * error recovery. After this call, traffic can start to flow from this device
10848 lpfc_io_resume_s4(struct pci_dev *pdev)
10850 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10851 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10854 * In case of slot reset, as function reset is performed through
10855 * mailbox command which needs DMA to be enabled, this operation
10856 * has to be moved to the io resume phase. Taking device offline
10857 * will perform the necessary cleanup.
10859 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10860 /* Perform device reset */
10861 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10862 lpfc_offline(phba);
10863 lpfc_sli_brdrestart(phba);
10864 /* Bring the device back online */
10868 /* Clean up Advanced Error Reporting (AER) if needed */
10869 if (phba->hba_flag & HBA_AER_ENABLED)
10870 pci_cleanup_aer_uncorrect_error_status(pdev);
10874 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10875 * @pdev: pointer to PCI device
10876 * @pid: pointer to PCI device identifier
10878 * This routine is to be registered to the kernel's PCI subsystem. When an
10879 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10880 * at PCI device-specific information of the device and driver to see if the
10881 * driver state that it can support this kind of device. If the match is
10882 * successful, the driver core invokes this routine. This routine dispatches
10883 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10884 * do all the initialization that it needs to do to handle the HBA device
10888 * 0 - driver can claim the device
10889 * negative value - driver can not claim the device
10892 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10895 struct lpfc_sli_intf intf;
10897 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
10900 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
10901 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
10902 rc = lpfc_pci_probe_one_s4(pdev, pid);
10904 rc = lpfc_pci_probe_one_s3(pdev, pid);
10910 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10911 * @pdev: pointer to PCI device
10913 * This routine is to be registered to the kernel's PCI subsystem. When an
10914 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10915 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10916 * remove routine, which will perform all the necessary cleanup for the
10917 * device to be removed from the PCI subsystem properly.
10920 lpfc_pci_remove_one(struct pci_dev *pdev)
10922 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10923 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10925 switch (phba->pci_dev_grp) {
10926 case LPFC_PCI_DEV_LP:
10927 lpfc_pci_remove_one_s3(pdev);
10929 case LPFC_PCI_DEV_OC:
10930 lpfc_pci_remove_one_s4(pdev);
10933 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10934 "1424 Invalid PCI device group: 0x%x\n",
10935 phba->pci_dev_grp);
10942 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10943 * @pdev: pointer to PCI device
10944 * @msg: power management message
10946 * This routine is to be registered to the kernel's PCI subsystem to support
10947 * system Power Management (PM). When PM invokes this method, it dispatches
10948 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10949 * suspend the device.
10952 * 0 - driver suspended the device
10956 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10958 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10959 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10962 switch (phba->pci_dev_grp) {
10963 case LPFC_PCI_DEV_LP:
10964 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10966 case LPFC_PCI_DEV_OC:
10967 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10970 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10971 "1425 Invalid PCI device group: 0x%x\n",
10972 phba->pci_dev_grp);
10979 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10980 * @pdev: pointer to PCI device
10982 * This routine is to be registered to the kernel's PCI subsystem to support
10983 * system Power Management (PM). When PM invokes this method, it dispatches
10984 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10985 * resume the device.
10988 * 0 - driver suspended the device
10992 lpfc_pci_resume_one(struct pci_dev *pdev)
10994 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10995 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10998 switch (phba->pci_dev_grp) {
10999 case LPFC_PCI_DEV_LP:
11000 rc = lpfc_pci_resume_one_s3(pdev);
11002 case LPFC_PCI_DEV_OC:
11003 rc = lpfc_pci_resume_one_s4(pdev);
11006 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11007 "1426 Invalid PCI device group: 0x%x\n",
11008 phba->pci_dev_grp);
11015 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
11016 * @pdev: pointer to PCI device.
11017 * @state: the current PCI connection state.
11019 * This routine is registered to the PCI subsystem for error handling. This
11020 * function is called by the PCI subsystem after a PCI bus error affecting
11021 * this device has been detected. When this routine is invoked, it dispatches
11022 * the action to the proper SLI-3 or SLI-4 device error detected handling
11023 * routine, which will perform the proper error detected operation.
11026 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11027 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11029 static pci_ers_result_t
11030 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
11032 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11033 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11034 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11036 switch (phba->pci_dev_grp) {
11037 case LPFC_PCI_DEV_LP:
11038 rc = lpfc_io_error_detected_s3(pdev, state);
11040 case LPFC_PCI_DEV_OC:
11041 rc = lpfc_io_error_detected_s4(pdev, state);
11044 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11045 "1427 Invalid PCI device group: 0x%x\n",
11046 phba->pci_dev_grp);
11053 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
11054 * @pdev: pointer to PCI device.
11056 * This routine is registered to the PCI subsystem for error handling. This
11057 * function is called after PCI bus has been reset to restart the PCI card
11058 * from scratch, as if from a cold-boot. When this routine is invoked, it
11059 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
11060 * routine, which will perform the proper device reset.
11063 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
11064 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11066 static pci_ers_result_t
11067 lpfc_io_slot_reset(struct pci_dev *pdev)
11069 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11070 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11071 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11073 switch (phba->pci_dev_grp) {
11074 case LPFC_PCI_DEV_LP:
11075 rc = lpfc_io_slot_reset_s3(pdev);
11077 case LPFC_PCI_DEV_OC:
11078 rc = lpfc_io_slot_reset_s4(pdev);
11081 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11082 "1428 Invalid PCI device group: 0x%x\n",
11083 phba->pci_dev_grp);
11090 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
11091 * @pdev: pointer to PCI device
11093 * This routine is registered to the PCI subsystem for error handling. It
11094 * is called when kernel error recovery tells the lpfc driver that it is
11095 * OK to resume normal PCI operation after PCI bus error recovery. When
11096 * this routine is invoked, it dispatches the action to the proper SLI-3
11097 * or SLI-4 device io_resume routine, which will resume the device operation.
11100 lpfc_io_resume(struct pci_dev *pdev)
11102 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11103 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11105 switch (phba->pci_dev_grp) {
11106 case LPFC_PCI_DEV_LP:
11107 lpfc_io_resume_s3(pdev);
11109 case LPFC_PCI_DEV_OC:
11110 lpfc_io_resume_s4(pdev);
11113 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11114 "1429 Invalid PCI device group: 0x%x\n",
11115 phba->pci_dev_grp);
11122 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
11123 * @phba: pointer to lpfc hba data structure.
11125 * This routine checks to see if OAS is supported for this adapter. If
11126 * supported, the configure Flash Optimized Fabric flag is set. Otherwise,
11127 * the enable oas flag is cleared and the pool created for OAS device data
11132 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
11135 if (!phba->cfg_EnableXLane)
11138 if (phba->sli4_hba.pc_sli4_params.oas_supported) {
11142 if (phba->device_data_mem_pool)
11143 mempool_destroy(phba->device_data_mem_pool);
11144 phba->device_data_mem_pool = NULL;
11151 * lpfc_fof_queue_setup - Set up all the fof queues
11152 * @phba: pointer to lpfc hba data structure.
11154 * This routine is invoked to set up all the fof queues for the FC HBA
11159 * -ENOMEM - No available memory
11162 lpfc_fof_queue_setup(struct lpfc_hba *phba)
11164 struct lpfc_sli *psli = &phba->sli;
11167 rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
11171 if (phba->cfg_fof) {
11173 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
11174 phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
11178 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
11179 phba->sli4_hba.oas_cq, LPFC_FCP);
11183 phba->sli4_hba.oas_cq->pring = &psli->ring[LPFC_FCP_OAS_RING];
11184 phba->sli4_hba.oas_ring = &psli->ring[LPFC_FCP_OAS_RING];
11190 lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
11192 lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
11198 * lpfc_fof_queue_create - Create all the fof queues
11199 * @phba: pointer to lpfc hba data structure.
11201 * This routine is invoked to allocate all the fof queues for the FC HBA
11202 * operation. For each SLI4 queue type, the parameters such as queue entry
11203 * count (queue depth) shall be taken from the module parameter. For now,
11204 * we just use some constant number as place holder.
11208 * -ENOMEM - No availble memory
11209 * -EIO - The mailbox failed to complete successfully.
11212 lpfc_fof_queue_create(struct lpfc_hba *phba)
11214 struct lpfc_queue *qdesc;
11216 /* Create FOF EQ */
11217 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
11218 phba->sli4_hba.eq_ecount);
11222 phba->sli4_hba.fof_eq = qdesc;
11224 if (phba->cfg_fof) {
11226 /* Create OAS CQ */
11227 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
11228 phba->sli4_hba.cq_ecount);
11232 phba->sli4_hba.oas_cq = qdesc;
11234 /* Create OAS WQ */
11235 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
11236 phba->sli4_hba.wq_ecount);
11240 phba->sli4_hba.oas_wq = qdesc;
11246 lpfc_fof_queue_destroy(phba);
11251 * lpfc_fof_queue_destroy - Destroy all the fof queues
11252 * @phba: pointer to lpfc hba data structure.
11254 * This routine is invoked to release all the SLI4 queues with the FC HBA
11261 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
11263 /* Release FOF Event queue */
11264 if (phba->sli4_hba.fof_eq != NULL) {
11265 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
11266 phba->sli4_hba.fof_eq = NULL;
11269 /* Release OAS Completion queue */
11270 if (phba->sli4_hba.oas_cq != NULL) {
11271 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
11272 phba->sli4_hba.oas_cq = NULL;
11275 /* Release OAS Work queue */
11276 if (phba->sli4_hba.oas_wq != NULL) {
11277 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
11278 phba->sli4_hba.oas_wq = NULL;
11283 static struct pci_device_id lpfc_id_table[] = {
11284 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
11285 PCI_ANY_ID, PCI_ANY_ID, },
11286 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
11287 PCI_ANY_ID, PCI_ANY_ID, },
11288 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
11289 PCI_ANY_ID, PCI_ANY_ID, },
11290 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
11291 PCI_ANY_ID, PCI_ANY_ID, },
11292 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
11293 PCI_ANY_ID, PCI_ANY_ID, },
11294 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
11295 PCI_ANY_ID, PCI_ANY_ID, },
11296 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
11297 PCI_ANY_ID, PCI_ANY_ID, },
11298 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
11299 PCI_ANY_ID, PCI_ANY_ID, },
11300 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
11301 PCI_ANY_ID, PCI_ANY_ID, },
11302 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
11303 PCI_ANY_ID, PCI_ANY_ID, },
11304 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
11305 PCI_ANY_ID, PCI_ANY_ID, },
11306 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
11307 PCI_ANY_ID, PCI_ANY_ID, },
11308 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
11309 PCI_ANY_ID, PCI_ANY_ID, },
11310 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
11311 PCI_ANY_ID, PCI_ANY_ID, },
11312 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
11313 PCI_ANY_ID, PCI_ANY_ID, },
11314 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
11315 PCI_ANY_ID, PCI_ANY_ID, },
11316 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
11317 PCI_ANY_ID, PCI_ANY_ID, },
11318 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
11319 PCI_ANY_ID, PCI_ANY_ID, },
11320 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
11321 PCI_ANY_ID, PCI_ANY_ID, },
11322 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
11323 PCI_ANY_ID, PCI_ANY_ID, },
11324 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
11325 PCI_ANY_ID, PCI_ANY_ID, },
11326 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
11327 PCI_ANY_ID, PCI_ANY_ID, },
11328 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
11329 PCI_ANY_ID, PCI_ANY_ID, },
11330 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
11331 PCI_ANY_ID, PCI_ANY_ID, },
11332 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
11333 PCI_ANY_ID, PCI_ANY_ID, },
11334 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
11335 PCI_ANY_ID, PCI_ANY_ID, },
11336 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
11337 PCI_ANY_ID, PCI_ANY_ID, },
11338 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
11339 PCI_ANY_ID, PCI_ANY_ID, },
11340 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
11341 PCI_ANY_ID, PCI_ANY_ID, },
11342 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
11343 PCI_ANY_ID, PCI_ANY_ID, },
11344 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
11345 PCI_ANY_ID, PCI_ANY_ID, },
11346 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
11347 PCI_ANY_ID, PCI_ANY_ID, },
11348 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
11349 PCI_ANY_ID, PCI_ANY_ID, },
11350 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
11351 PCI_ANY_ID, PCI_ANY_ID, },
11352 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
11353 PCI_ANY_ID, PCI_ANY_ID, },
11354 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
11355 PCI_ANY_ID, PCI_ANY_ID, },
11356 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
11357 PCI_ANY_ID, PCI_ANY_ID, },
11358 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
11359 PCI_ANY_ID, PCI_ANY_ID, },
11360 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
11361 PCI_ANY_ID, PCI_ANY_ID, },
11362 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
11363 PCI_ANY_ID, PCI_ANY_ID, },
11364 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
11365 PCI_ANY_ID, PCI_ANY_ID, },
11366 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
11367 PCI_ANY_ID, PCI_ANY_ID, },
11368 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
11369 PCI_ANY_ID, PCI_ANY_ID, },
11370 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
11371 PCI_ANY_ID, PCI_ANY_ID, },
11372 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
11373 PCI_ANY_ID, PCI_ANY_ID, },
11374 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_G6_FC,
11375 PCI_ANY_ID, PCI_ANY_ID, },
11376 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
11377 PCI_ANY_ID, PCI_ANY_ID, },
11378 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
11379 PCI_ANY_ID, PCI_ANY_ID, },
11383 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
11385 static const struct pci_error_handlers lpfc_err_handler = {
11386 .error_detected = lpfc_io_error_detected,
11387 .slot_reset = lpfc_io_slot_reset,
11388 .resume = lpfc_io_resume,
11391 static struct pci_driver lpfc_driver = {
11392 .name = LPFC_DRIVER_NAME,
11393 .id_table = lpfc_id_table,
11394 .probe = lpfc_pci_probe_one,
11395 .remove = lpfc_pci_remove_one,
11396 .suspend = lpfc_pci_suspend_one,
11397 .resume = lpfc_pci_resume_one,
11398 .err_handler = &lpfc_err_handler,
11401 static const struct file_operations lpfc_mgmt_fop = {
11402 .owner = THIS_MODULE,
11405 static struct miscdevice lpfc_mgmt_dev = {
11406 .minor = MISC_DYNAMIC_MINOR,
11407 .name = "lpfcmgmt",
11408 .fops = &lpfc_mgmt_fop,
11412 * lpfc_init - lpfc module initialization routine
11414 * This routine is to be invoked when the lpfc module is loaded into the
11415 * kernel. The special kernel macro module_init() is used to indicate the
11416 * role of this routine to the kernel as lpfc module entry point.
11420 * -ENOMEM - FC attach transport failed
11421 * all others - failed
11429 printk(LPFC_MODULE_DESC "\n");
11430 printk(LPFC_COPYRIGHT "\n");
11432 error = misc_register(&lpfc_mgmt_dev);
11434 printk(KERN_ERR "Could not register lpfcmgmt device, "
11435 "misc_register returned with status %d", error);
11437 if (lpfc_enable_npiv) {
11438 lpfc_transport_functions.vport_create = lpfc_vport_create;
11439 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
11441 lpfc_transport_template =
11442 fc_attach_transport(&lpfc_transport_functions);
11443 if (lpfc_transport_template == NULL)
11445 if (lpfc_enable_npiv) {
11446 lpfc_vport_transport_template =
11447 fc_attach_transport(&lpfc_vport_transport_functions);
11448 if (lpfc_vport_transport_template == NULL) {
11449 fc_release_transport(lpfc_transport_template);
11454 /* Initialize in case vector mapping is needed */
11455 lpfc_used_cpu = NULL;
11456 lpfc_present_cpu = 0;
11457 for_each_present_cpu(cpu)
11458 lpfc_present_cpu++;
11460 error = pci_register_driver(&lpfc_driver);
11462 fc_release_transport(lpfc_transport_template);
11463 if (lpfc_enable_npiv)
11464 fc_release_transport(lpfc_vport_transport_template);
11471 * lpfc_exit - lpfc module removal routine
11473 * This routine is invoked when the lpfc module is removed from the kernel.
11474 * The special kernel macro module_exit() is used to indicate the role of
11475 * this routine to the kernel as lpfc module exit point.
11480 misc_deregister(&lpfc_mgmt_dev);
11481 pci_unregister_driver(&lpfc_driver);
11482 fc_release_transport(lpfc_transport_template);
11483 if (lpfc_enable_npiv)
11484 fc_release_transport(lpfc_vport_transport_template);
11485 if (_dump_buf_data) {
11486 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
11487 "_dump_buf_data at 0x%p\n",
11488 (1L << _dump_buf_data_order), _dump_buf_data);
11489 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
11492 if (_dump_buf_dif) {
11493 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
11494 "_dump_buf_dif at 0x%p\n",
11495 (1L << _dump_buf_dif_order), _dump_buf_dif);
11496 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
11498 kfree(lpfc_used_cpu);
11499 idr_destroy(&lpfc_hba_index);
11502 module_init(lpfc_init);
11503 module_exit(lpfc_exit);
11504 MODULE_LICENSE("GPL");
11505 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
11506 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
11507 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);