1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2016 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"
58 unsigned long _dump_buf_data_order;
60 unsigned long _dump_buf_dif_order;
61 spinlock_t _dump_buf_lock;
63 /* Used when mapping IRQ vectors in a driver centric manner */
64 uint16_t *lpfc_used_cpu;
65 uint32_t lpfc_present_cpu;
67 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
68 static int lpfc_post_rcv_buf(struct lpfc_hba *);
69 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
70 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
71 static int lpfc_setup_endian_order(struct lpfc_hba *);
72 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
73 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
74 static void lpfc_init_sgl_list(struct lpfc_hba *);
75 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
76 static void lpfc_free_active_sgl(struct lpfc_hba *);
77 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
78 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
79 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
80 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
81 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
82 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
83 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
84 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
86 static struct scsi_transport_template *lpfc_transport_template = NULL;
87 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
88 static DEFINE_IDR(lpfc_hba_index);
91 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
92 * @phba: pointer to lpfc hba data structure.
94 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
95 * mailbox command. It retrieves the revision information from the HBA and
96 * collects the Vital Product Data (VPD) about the HBA for preparing the
97 * configuration of the HBA.
101 * -ERESTART - requests the SLI layer to reset the HBA and try again.
102 * Any other value - indicates an error.
105 lpfc_config_port_prep(struct lpfc_hba *phba)
107 lpfc_vpd_t *vp = &phba->vpd;
111 char *lpfc_vpd_data = NULL;
113 static char licensed[56] =
114 "key unlock for use with gnu public licensed code only\0";
115 static int init_key = 1;
117 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
119 phba->link_state = LPFC_HBA_ERROR;
124 phba->link_state = LPFC_INIT_MBX_CMDS;
126 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
128 uint32_t *ptext = (uint32_t *) licensed;
130 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
131 *ptext = cpu_to_be32(*ptext);
135 lpfc_read_nv(phba, pmb);
136 memset((char*)mb->un.varRDnvp.rsvd3, 0,
137 sizeof (mb->un.varRDnvp.rsvd3));
138 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
141 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
143 if (rc != MBX_SUCCESS) {
144 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
145 "0324 Config Port initialization "
146 "error, mbxCmd x%x READ_NVPARM, "
148 mb->mbxCommand, mb->mbxStatus);
149 mempool_free(pmb, phba->mbox_mem_pool);
152 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
154 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
158 phba->sli3_options = 0x0;
160 /* Setup and issue mailbox READ REV command */
161 lpfc_read_rev(phba, pmb);
162 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
163 if (rc != MBX_SUCCESS) {
164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
165 "0439 Adapter failed to init, mbxCmd x%x "
166 "READ_REV, mbxStatus x%x\n",
167 mb->mbxCommand, mb->mbxStatus);
168 mempool_free( pmb, phba->mbox_mem_pool);
174 * The value of rr must be 1 since the driver set the cv field to 1.
175 * This setting requires the FW to set all revision fields.
177 if (mb->un.varRdRev.rr == 0) {
179 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
180 "0440 Adapter failed to init, READ_REV has "
181 "missing revision information.\n");
182 mempool_free(pmb, phba->mbox_mem_pool);
186 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
187 mempool_free(pmb, phba->mbox_mem_pool);
191 /* Save information as VPD data */
193 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
194 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
195 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
196 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
197 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
198 vp->rev.biuRev = mb->un.varRdRev.biuRev;
199 vp->rev.smRev = mb->un.varRdRev.smRev;
200 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
201 vp->rev.endecRev = mb->un.varRdRev.endecRev;
202 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
203 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
204 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
205 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
206 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
207 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
209 /* If the sli feature level is less then 9, we must
210 * tear down all RPIs and VPIs on link down if NPIV
213 if (vp->rev.feaLevelHigh < 9)
214 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
216 if (lpfc_is_LC_HBA(phba->pcidev->device))
217 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
218 sizeof (phba->RandomData));
220 /* Get adapter VPD information */
221 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
225 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
226 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
228 if (rc != MBX_SUCCESS) {
229 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
230 "0441 VPD not present on adapter, "
231 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
232 mb->mbxCommand, mb->mbxStatus);
233 mb->un.varDmp.word_cnt = 0;
235 /* dump mem may return a zero when finished or we got a
236 * mailbox error, either way we are done.
238 if (mb->un.varDmp.word_cnt == 0)
240 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
241 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
242 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
243 lpfc_vpd_data + offset,
244 mb->un.varDmp.word_cnt);
245 offset += mb->un.varDmp.word_cnt;
246 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
247 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
249 kfree(lpfc_vpd_data);
251 mempool_free(pmb, phba->mbox_mem_pool);
256 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
257 * @phba: pointer to lpfc hba data structure.
258 * @pmboxq: pointer to the driver internal queue element for mailbox command.
260 * This is the completion handler for driver's configuring asynchronous event
261 * mailbox command to the device. If the mailbox command returns successfully,
262 * it will set internal async event support flag to 1; otherwise, it will
263 * set internal async event support flag to 0.
266 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
268 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
269 phba->temp_sensor_support = 1;
271 phba->temp_sensor_support = 0;
272 mempool_free(pmboxq, phba->mbox_mem_pool);
277 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
278 * @phba: pointer to lpfc hba data structure.
279 * @pmboxq: pointer to the driver internal queue element for mailbox command.
281 * This is the completion handler for dump mailbox command for getting
282 * wake up parameters. When this command complete, the response contain
283 * Option rom version of the HBA. This function translate the version number
284 * into a human readable string and store it in OptionROMVersion.
287 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
290 uint32_t prog_id_word;
292 /* character array used for decoding dist type. */
293 char dist_char[] = "nabx";
295 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
296 mempool_free(pmboxq, phba->mbox_mem_pool);
300 prg = (struct prog_id *) &prog_id_word;
302 /* word 7 contain option rom version */
303 prog_id_word = pmboxq->u.mb.un.varWords[7];
305 /* Decode the Option rom version word to a readable string */
307 dist = dist_char[prg->dist];
309 if ((prg->dist == 3) && (prg->num == 0))
310 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
311 prg->ver, prg->rev, prg->lev);
313 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
314 prg->ver, prg->rev, prg->lev,
316 mempool_free(pmboxq, phba->mbox_mem_pool);
321 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
322 * cfg_soft_wwnn, cfg_soft_wwpn
323 * @vport: pointer to lpfc vport data structure.
330 lpfc_update_vport_wwn(struct lpfc_vport *vport)
332 /* If the soft name exists then update it using the service params */
333 if (vport->phba->cfg_soft_wwnn)
334 u64_to_wwn(vport->phba->cfg_soft_wwnn,
335 vport->fc_sparam.nodeName.u.wwn);
336 if (vport->phba->cfg_soft_wwpn)
337 u64_to_wwn(vport->phba->cfg_soft_wwpn,
338 vport->fc_sparam.portName.u.wwn);
341 * If the name is empty or there exists a soft name
342 * then copy the service params name, otherwise use the fc name
344 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
345 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
346 sizeof(struct lpfc_name));
348 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
349 sizeof(struct lpfc_name));
351 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
352 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
353 sizeof(struct lpfc_name));
355 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
356 sizeof(struct lpfc_name));
360 * lpfc_config_port_post - Perform lpfc initialization after config port
361 * @phba: pointer to lpfc hba data structure.
363 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
364 * command call. It performs all internal resource and state setups on the
365 * port: post IOCB buffers, enable appropriate host interrupt attentions,
366 * ELS ring timers, etc.
370 * Any other value - error.
373 lpfc_config_port_post(struct lpfc_hba *phba)
375 struct lpfc_vport *vport = phba->pport;
376 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
379 struct lpfc_dmabuf *mp;
380 struct lpfc_sli *psli = &phba->sli;
381 uint32_t status, timeout;
385 spin_lock_irq(&phba->hbalock);
387 * If the Config port completed correctly the HBA is not
388 * over heated any more.
390 if (phba->over_temp_state == HBA_OVER_TEMP)
391 phba->over_temp_state = HBA_NORMAL_TEMP;
392 spin_unlock_irq(&phba->hbalock);
394 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
396 phba->link_state = LPFC_HBA_ERROR;
401 /* Get login parameters for NID. */
402 rc = lpfc_read_sparam(phba, pmb, 0);
404 mempool_free(pmb, phba->mbox_mem_pool);
409 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
411 "0448 Adapter failed init, mbxCmd x%x "
412 "READ_SPARM mbxStatus x%x\n",
413 mb->mbxCommand, mb->mbxStatus);
414 phba->link_state = LPFC_HBA_ERROR;
415 mp = (struct lpfc_dmabuf *) pmb->context1;
416 mempool_free(pmb, phba->mbox_mem_pool);
417 lpfc_mbuf_free(phba, mp->virt, mp->phys);
422 mp = (struct lpfc_dmabuf *) pmb->context1;
424 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
425 lpfc_mbuf_free(phba, mp->virt, mp->phys);
427 pmb->context1 = NULL;
428 lpfc_update_vport_wwn(vport);
430 /* Update the fc_host data structures with new wwn. */
431 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
432 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
433 fc_host_max_npiv_vports(shost) = phba->max_vpi;
435 /* If no serial number in VPD data, use low 6 bytes of WWNN */
436 /* This should be consolidated into parse_vpd ? - mr */
437 if (phba->SerialNumber[0] == 0) {
440 outptr = &vport->fc_nodename.u.s.IEEE[0];
441 for (i = 0; i < 12; i++) {
443 j = ((status & 0xf0) >> 4);
445 phba->SerialNumber[i] =
446 (char)((uint8_t) 0x30 + (uint8_t) j);
448 phba->SerialNumber[i] =
449 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
453 phba->SerialNumber[i] =
454 (char)((uint8_t) 0x30 + (uint8_t) j);
456 phba->SerialNumber[i] =
457 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
461 lpfc_read_config(phba, pmb);
463 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
464 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
465 "0453 Adapter failed to init, mbxCmd x%x "
466 "READ_CONFIG, mbxStatus x%x\n",
467 mb->mbxCommand, mb->mbxStatus);
468 phba->link_state = LPFC_HBA_ERROR;
469 mempool_free( pmb, phba->mbox_mem_pool);
473 /* Check if the port is disabled */
474 lpfc_sli_read_link_ste(phba);
476 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
477 i = (mb->un.varRdConfig.max_xri + 1);
478 if (phba->cfg_hba_queue_depth > i) {
479 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
480 "3359 HBA queue depth changed from %d to %d\n",
481 phba->cfg_hba_queue_depth, i);
482 phba->cfg_hba_queue_depth = i;
485 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
486 i = (mb->un.varRdConfig.max_xri >> 3);
487 if (phba->pport->cfg_lun_queue_depth > i) {
488 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
489 "3360 LUN queue depth changed from %d to %d\n",
490 phba->pport->cfg_lun_queue_depth, i);
491 phba->pport->cfg_lun_queue_depth = i;
494 phba->lmt = mb->un.varRdConfig.lmt;
496 /* Get the default values for Model Name and Description */
497 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
499 phba->link_state = LPFC_LINK_DOWN;
501 /* Only process IOCBs on ELS ring till hba_state is READY */
502 if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
503 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
504 if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
505 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
506 if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
507 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
509 /* Post receive buffers for desired rings */
510 if (phba->sli_rev != 3)
511 lpfc_post_rcv_buf(phba);
514 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
516 if (phba->intr_type == MSIX) {
517 rc = lpfc_config_msi(phba, pmb);
519 mempool_free(pmb, phba->mbox_mem_pool);
522 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
523 if (rc != MBX_SUCCESS) {
524 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
525 "0352 Config MSI mailbox command "
526 "failed, mbxCmd x%x, mbxStatus x%x\n",
527 pmb->u.mb.mbxCommand,
528 pmb->u.mb.mbxStatus);
529 mempool_free(pmb, phba->mbox_mem_pool);
534 spin_lock_irq(&phba->hbalock);
535 /* Initialize ERATT handling flag */
536 phba->hba_flag &= ~HBA_ERATT_HANDLED;
538 /* Enable appropriate host interrupts */
539 if (lpfc_readl(phba->HCregaddr, &status)) {
540 spin_unlock_irq(&phba->hbalock);
543 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
544 if (psli->num_rings > 0)
545 status |= HC_R0INT_ENA;
546 if (psli->num_rings > 1)
547 status |= HC_R1INT_ENA;
548 if (psli->num_rings > 2)
549 status |= HC_R2INT_ENA;
550 if (psli->num_rings > 3)
551 status |= HC_R3INT_ENA;
553 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
554 (phba->cfg_poll & DISABLE_FCP_RING_INT))
555 status &= ~(HC_R0INT_ENA);
557 writel(status, phba->HCregaddr);
558 readl(phba->HCregaddr); /* flush */
559 spin_unlock_irq(&phba->hbalock);
561 /* Set up ring-0 (ELS) timer */
562 timeout = phba->fc_ratov * 2;
563 mod_timer(&vport->els_tmofunc,
564 jiffies + msecs_to_jiffies(1000 * timeout));
565 /* Set up heart beat (HB) timer */
566 mod_timer(&phba->hb_tmofunc,
567 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
568 phba->hb_outstanding = 0;
569 phba->last_completion_time = jiffies;
570 /* Set up error attention (ERATT) polling timer */
571 mod_timer(&phba->eratt_poll,
572 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
574 if (phba->hba_flag & LINK_DISABLED) {
575 lpfc_printf_log(phba,
577 "2598 Adapter Link is disabled.\n");
578 lpfc_down_link(phba, pmb);
579 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
580 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
581 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
582 lpfc_printf_log(phba,
584 "2599 Adapter failed to issue DOWN_LINK"
585 " mbox command rc 0x%x\n", rc);
587 mempool_free(pmb, phba->mbox_mem_pool);
590 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
591 mempool_free(pmb, phba->mbox_mem_pool);
592 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
596 /* MBOX buffer will be freed in mbox compl */
597 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
599 phba->link_state = LPFC_HBA_ERROR;
603 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
604 pmb->mbox_cmpl = lpfc_config_async_cmpl;
605 pmb->vport = phba->pport;
606 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
608 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
609 lpfc_printf_log(phba,
612 "0456 Adapter failed to issue "
613 "ASYNCEVT_ENABLE mbox status x%x\n",
615 mempool_free(pmb, phba->mbox_mem_pool);
618 /* Get Option rom version */
619 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
621 phba->link_state = LPFC_HBA_ERROR;
625 lpfc_dump_wakeup_param(phba, pmb);
626 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
627 pmb->vport = phba->pport;
628 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
630 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
631 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
632 "to get Option ROM version status x%x\n", rc);
633 mempool_free(pmb, phba->mbox_mem_pool);
640 * lpfc_hba_init_link - Initialize the FC link
641 * @phba: pointer to lpfc hba data structure.
642 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
644 * This routine will issue the INIT_LINK mailbox command call.
645 * It is available to other drivers through the lpfc_hba data
646 * structure for use as a delayed link up mechanism with the
647 * module parameter lpfc_suppress_link_up.
651 * Any other value - error
654 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
656 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
660 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
661 * @phba: pointer to lpfc hba data structure.
662 * @fc_topology: desired fc topology.
663 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
665 * This routine will issue the INIT_LINK mailbox command call.
666 * It is available to other drivers through the lpfc_hba data
667 * structure for use as a delayed link up mechanism with the
668 * module parameter lpfc_suppress_link_up.
672 * Any other value - error
675 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
678 struct lpfc_vport *vport = phba->pport;
683 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
685 phba->link_state = LPFC_HBA_ERROR;
691 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
692 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
693 !(phba->lmt & LMT_1Gb)) ||
694 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
695 !(phba->lmt & LMT_2Gb)) ||
696 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
697 !(phba->lmt & LMT_4Gb)) ||
698 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
699 !(phba->lmt & LMT_8Gb)) ||
700 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
701 !(phba->lmt & LMT_10Gb)) ||
702 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
703 !(phba->lmt & LMT_16Gb)) ||
704 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
705 !(phba->lmt & LMT_32Gb))) {
706 /* Reset link speed to auto */
707 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
708 "1302 Invalid speed for this board:%d "
709 "Reset link speed to auto.\n",
710 phba->cfg_link_speed);
711 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
713 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
714 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
715 if (phba->sli_rev < LPFC_SLI_REV4)
716 lpfc_set_loopback_flag(phba);
717 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
718 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
719 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
720 "0498 Adapter failed to init, mbxCmd x%x "
721 "INIT_LINK, mbxStatus x%x\n",
722 mb->mbxCommand, mb->mbxStatus);
723 if (phba->sli_rev <= LPFC_SLI_REV3) {
724 /* Clear all interrupt enable conditions */
725 writel(0, phba->HCregaddr);
726 readl(phba->HCregaddr); /* flush */
727 /* Clear all pending interrupts */
728 writel(0xffffffff, phba->HAregaddr);
729 readl(phba->HAregaddr); /* flush */
731 phba->link_state = LPFC_HBA_ERROR;
732 if (rc != MBX_BUSY || flag == MBX_POLL)
733 mempool_free(pmb, phba->mbox_mem_pool);
736 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
737 if (flag == MBX_POLL)
738 mempool_free(pmb, phba->mbox_mem_pool);
744 * lpfc_hba_down_link - this routine downs the FC link
745 * @phba: pointer to lpfc hba data structure.
746 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
748 * This routine will issue the DOWN_LINK mailbox command call.
749 * It is available to other drivers through the lpfc_hba data
750 * structure for use to stop the link.
754 * Any other value - error
757 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
762 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
764 phba->link_state = LPFC_HBA_ERROR;
768 lpfc_printf_log(phba,
770 "0491 Adapter Link is disabled.\n");
771 lpfc_down_link(phba, pmb);
772 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
773 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
774 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
775 lpfc_printf_log(phba,
777 "2522 Adapter failed to issue DOWN_LINK"
778 " mbox command rc 0x%x\n", rc);
780 mempool_free(pmb, phba->mbox_mem_pool);
783 if (flag == MBX_POLL)
784 mempool_free(pmb, phba->mbox_mem_pool);
790 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
791 * @phba: pointer to lpfc HBA data structure.
793 * This routine will do LPFC uninitialization before the HBA is reset when
794 * bringing down the SLI Layer.
798 * Any other value - error.
801 lpfc_hba_down_prep(struct lpfc_hba *phba)
803 struct lpfc_vport **vports;
806 if (phba->sli_rev <= LPFC_SLI_REV3) {
807 /* Disable interrupts */
808 writel(0, phba->HCregaddr);
809 readl(phba->HCregaddr); /* flush */
812 if (phba->pport->load_flag & FC_UNLOADING)
813 lpfc_cleanup_discovery_resources(phba->pport);
815 vports = lpfc_create_vport_work_array(phba);
817 for (i = 0; i <= phba->max_vports &&
818 vports[i] != NULL; i++)
819 lpfc_cleanup_discovery_resources(vports[i]);
820 lpfc_destroy_vport_work_array(phba, vports);
826 * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
827 * rspiocb which got deferred
829 * @phba: pointer to lpfc HBA data structure.
831 * This routine will cleanup completed slow path events after HBA is reset
832 * when bringing down the SLI Layer.
839 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
841 struct lpfc_iocbq *rspiocbq;
842 struct hbq_dmabuf *dmabuf;
843 struct lpfc_cq_event *cq_event;
845 spin_lock_irq(&phba->hbalock);
846 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
847 spin_unlock_irq(&phba->hbalock);
849 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
850 /* Get the response iocb from the head of work queue */
851 spin_lock_irq(&phba->hbalock);
852 list_remove_head(&phba->sli4_hba.sp_queue_event,
853 cq_event, struct lpfc_cq_event, list);
854 spin_unlock_irq(&phba->hbalock);
856 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
857 case CQE_CODE_COMPL_WQE:
858 rspiocbq = container_of(cq_event, struct lpfc_iocbq,
860 lpfc_sli_release_iocbq(phba, rspiocbq);
862 case CQE_CODE_RECEIVE:
863 case CQE_CODE_RECEIVE_V1:
864 dmabuf = container_of(cq_event, struct hbq_dmabuf,
866 lpfc_in_buf_free(phba, &dmabuf->dbuf);
872 * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
873 * @phba: pointer to lpfc HBA data structure.
875 * This routine will cleanup posted ELS buffers after the HBA is reset
876 * when bringing down the SLI Layer.
883 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
885 struct lpfc_sli *psli = &phba->sli;
886 struct lpfc_sli_ring *pring;
887 struct lpfc_dmabuf *mp, *next_mp;
891 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
892 lpfc_sli_hbqbuf_free_all(phba);
894 /* Cleanup preposted buffers on the ELS ring */
895 pring = &psli->ring[LPFC_ELS_RING];
896 spin_lock_irq(&phba->hbalock);
897 list_splice_init(&pring->postbufq, &buflist);
898 spin_unlock_irq(&phba->hbalock);
901 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
904 lpfc_mbuf_free(phba, mp->virt, mp->phys);
908 spin_lock_irq(&phba->hbalock);
909 pring->postbufq_cnt -= count;
910 spin_unlock_irq(&phba->hbalock);
915 * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
916 * @phba: pointer to lpfc HBA data structure.
918 * This routine will cleanup the txcmplq after the HBA is reset when bringing
919 * down the SLI Layer.
925 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
927 struct lpfc_sli *psli = &phba->sli;
928 struct lpfc_sli_ring *pring;
929 LIST_HEAD(completions);
932 for (i = 0; i < psli->num_rings; i++) {
933 pring = &psli->ring[i];
934 if (phba->sli_rev >= LPFC_SLI_REV4)
935 spin_lock_irq(&pring->ring_lock);
937 spin_lock_irq(&phba->hbalock);
938 /* At this point in time the HBA is either reset or DOA. Either
939 * way, nothing should be on txcmplq as it will NEVER complete.
941 list_splice_init(&pring->txcmplq, &completions);
942 pring->txcmplq_cnt = 0;
944 if (phba->sli_rev >= LPFC_SLI_REV4)
945 spin_unlock_irq(&pring->ring_lock);
947 spin_unlock_irq(&phba->hbalock);
949 /* Cancel all the IOCBs from the completions list */
950 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
952 lpfc_sli_abort_iocb_ring(phba, pring);
957 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
959 * @phba: pointer to lpfc HBA data structure.
961 * This routine will do uninitialization after the HBA is reset when bring
962 * down the SLI Layer.
966 * Any other value - error.
969 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
971 lpfc_hba_free_post_buf(phba);
972 lpfc_hba_clean_txcmplq(phba);
977 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
978 * @phba: pointer to lpfc HBA data structure.
980 * This routine will do uninitialization after the HBA is reset when bring
981 * down the SLI Layer.
985 * Any other value - error.
988 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
990 struct lpfc_scsi_buf *psb, *psb_next;
992 unsigned long iflag = 0;
993 struct lpfc_sglq *sglq_entry = NULL;
994 struct lpfc_sli *psli = &phba->sli;
995 struct lpfc_sli_ring *pring;
997 lpfc_hba_free_post_buf(phba);
998 lpfc_hba_clean_txcmplq(phba);
999 pring = &psli->ring[LPFC_ELS_RING];
1001 /* At this point in time the HBA is either reset or DOA. Either
1002 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1003 * on the lpfc_sgl_list so that it can either be freed if the
1004 * driver is unloading or reposted if the driver is restarting
1007 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
1009 /* abts_sgl_list_lock required because worker thread uses this
1012 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
1013 list_for_each_entry(sglq_entry,
1014 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1015 sglq_entry->state = SGL_FREED;
1017 spin_lock(&pring->ring_lock);
1018 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1019 &phba->sli4_hba.lpfc_sgl_list);
1020 spin_unlock(&pring->ring_lock);
1021 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
1022 /* abts_scsi_buf_list_lock required because worker thread uses this
1025 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1026 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1028 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1029 spin_unlock_irq(&phba->hbalock);
1031 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1033 psb->status = IOSTAT_SUCCESS;
1035 spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1036 list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1037 spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1039 lpfc_sli4_free_sp_events(phba);
1044 * lpfc_hba_down_post - Wrapper func for hba down post routine
1045 * @phba: pointer to lpfc HBA data structure.
1047 * This routine wraps the actual SLI3 or SLI4 routine for performing
1048 * uninitialization after the HBA is reset when bring down the SLI Layer.
1052 * Any other value - error.
1055 lpfc_hba_down_post(struct lpfc_hba *phba)
1057 return (*phba->lpfc_hba_down_post)(phba);
1061 * lpfc_hb_timeout - The HBA-timer timeout handler
1062 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1064 * This is the HBA-timer timeout handler registered to the lpfc driver. When
1065 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1066 * work-port-events bitmap and the worker thread is notified. This timeout
1067 * event will be used by the worker thread to invoke the actual timeout
1068 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1069 * be performed in the timeout handler and the HBA timeout event bit shall
1070 * be cleared by the worker thread after it has taken the event bitmap out.
1073 lpfc_hb_timeout(unsigned long ptr)
1075 struct lpfc_hba *phba;
1076 uint32_t tmo_posted;
1077 unsigned long iflag;
1079 phba = (struct lpfc_hba *)ptr;
1081 /* Check for heart beat timeout conditions */
1082 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1083 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1085 phba->pport->work_port_events |= WORKER_HB_TMO;
1086 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1088 /* Tell the worker thread there is work to do */
1090 lpfc_worker_wake_up(phba);
1095 * lpfc_rrq_timeout - The RRQ-timer timeout handler
1096 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1098 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1099 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1100 * work-port-events bitmap and the worker thread is notified. This timeout
1101 * event will be used by the worker thread to invoke the actual timeout
1102 * handler routine, lpfc_rrq_handler. Any periodical operations will
1103 * be performed in the timeout handler and the RRQ timeout event bit shall
1104 * be cleared by the worker thread after it has taken the event bitmap out.
1107 lpfc_rrq_timeout(unsigned long ptr)
1109 struct lpfc_hba *phba;
1110 unsigned long iflag;
1112 phba = (struct lpfc_hba *)ptr;
1113 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1114 if (!(phba->pport->load_flag & FC_UNLOADING))
1115 phba->hba_flag |= HBA_RRQ_ACTIVE;
1117 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1118 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1120 if (!(phba->pport->load_flag & FC_UNLOADING))
1121 lpfc_worker_wake_up(phba);
1125 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1126 * @phba: pointer to lpfc hba data structure.
1127 * @pmboxq: pointer to the driver internal queue element for mailbox command.
1129 * This is the callback function to the lpfc heart-beat mailbox command.
1130 * If configured, the lpfc driver issues the heart-beat mailbox command to
1131 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1132 * heart-beat mailbox command is issued, the driver shall set up heart-beat
1133 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1134 * heart-beat outstanding state. Once the mailbox command comes back and
1135 * no error conditions detected, the heart-beat mailbox command timer is
1136 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1137 * state is cleared for the next heart-beat. If the timer expired with the
1138 * heart-beat outstanding state set, the driver will put the HBA offline.
1141 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1143 unsigned long drvr_flag;
1145 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1146 phba->hb_outstanding = 0;
1147 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1149 /* Check and reset heart-beat timer is necessary */
1150 mempool_free(pmboxq, phba->mbox_mem_pool);
1151 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1152 !(phba->link_state == LPFC_HBA_ERROR) &&
1153 !(phba->pport->load_flag & FC_UNLOADING))
1154 mod_timer(&phba->hb_tmofunc,
1156 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1161 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1162 * @phba: pointer to lpfc hba data structure.
1164 * This is the actual HBA-timer timeout handler to be invoked by the worker
1165 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1166 * handler performs any periodic operations needed for the device. If such
1167 * periodic event has already been attended to either in the interrupt handler
1168 * or by processing slow-ring or fast-ring events within the HBA-timer
1169 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1170 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1171 * is configured and there is no heart-beat mailbox command outstanding, a
1172 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1173 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1177 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1179 struct lpfc_vport **vports;
1180 LPFC_MBOXQ_t *pmboxq;
1181 struct lpfc_dmabuf *buf_ptr;
1183 struct lpfc_sli *psli = &phba->sli;
1184 LIST_HEAD(completions);
1186 vports = lpfc_create_vport_work_array(phba);
1188 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1189 lpfc_rcv_seq_check_edtov(vports[i]);
1190 lpfc_fdmi_num_disc_check(vports[i]);
1192 lpfc_destroy_vport_work_array(phba, vports);
1194 if ((phba->link_state == LPFC_HBA_ERROR) ||
1195 (phba->pport->load_flag & FC_UNLOADING) ||
1196 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1199 spin_lock_irq(&phba->pport->work_port_lock);
1201 if (time_after(phba->last_completion_time +
1202 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1204 spin_unlock_irq(&phba->pport->work_port_lock);
1205 if (!phba->hb_outstanding)
1206 mod_timer(&phba->hb_tmofunc,
1208 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1210 mod_timer(&phba->hb_tmofunc,
1212 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1215 spin_unlock_irq(&phba->pport->work_port_lock);
1217 if (phba->elsbuf_cnt &&
1218 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1219 spin_lock_irq(&phba->hbalock);
1220 list_splice_init(&phba->elsbuf, &completions);
1221 phba->elsbuf_cnt = 0;
1222 phba->elsbuf_prev_cnt = 0;
1223 spin_unlock_irq(&phba->hbalock);
1225 while (!list_empty(&completions)) {
1226 list_remove_head(&completions, buf_ptr,
1227 struct lpfc_dmabuf, list);
1228 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1232 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1234 /* If there is no heart beat outstanding, issue a heartbeat command */
1235 if (phba->cfg_enable_hba_heartbeat) {
1236 if (!phba->hb_outstanding) {
1237 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1238 (list_empty(&psli->mboxq))) {
1239 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1242 mod_timer(&phba->hb_tmofunc,
1244 msecs_to_jiffies(1000 *
1245 LPFC_HB_MBOX_INTERVAL));
1249 lpfc_heart_beat(phba, pmboxq);
1250 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1251 pmboxq->vport = phba->pport;
1252 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1255 if (retval != MBX_BUSY &&
1256 retval != MBX_SUCCESS) {
1257 mempool_free(pmboxq,
1258 phba->mbox_mem_pool);
1259 mod_timer(&phba->hb_tmofunc,
1261 msecs_to_jiffies(1000 *
1262 LPFC_HB_MBOX_INTERVAL));
1265 phba->skipped_hb = 0;
1266 phba->hb_outstanding = 1;
1267 } else if (time_before_eq(phba->last_completion_time,
1268 phba->skipped_hb)) {
1269 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1270 "2857 Last completion time not "
1271 " updated in %d ms\n",
1272 jiffies_to_msecs(jiffies
1273 - phba->last_completion_time));
1275 phba->skipped_hb = jiffies;
1277 mod_timer(&phba->hb_tmofunc,
1279 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1283 * If heart beat timeout called with hb_outstanding set
1284 * we need to give the hb mailbox cmd a chance to
1287 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1288 "0459 Adapter heartbeat still out"
1289 "standing:last compl time was %d ms.\n",
1290 jiffies_to_msecs(jiffies
1291 - phba->last_completion_time));
1292 mod_timer(&phba->hb_tmofunc,
1294 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1297 mod_timer(&phba->hb_tmofunc,
1299 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1304 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1305 * @phba: pointer to lpfc hba data structure.
1307 * This routine is called to bring the HBA offline when HBA hardware error
1308 * other than Port Error 6 has been detected.
1311 lpfc_offline_eratt(struct lpfc_hba *phba)
1313 struct lpfc_sli *psli = &phba->sli;
1315 spin_lock_irq(&phba->hbalock);
1316 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1317 spin_unlock_irq(&phba->hbalock);
1318 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1321 lpfc_reset_barrier(phba);
1322 spin_lock_irq(&phba->hbalock);
1323 lpfc_sli_brdreset(phba);
1324 spin_unlock_irq(&phba->hbalock);
1325 lpfc_hba_down_post(phba);
1326 lpfc_sli_brdready(phba, HS_MBRDY);
1327 lpfc_unblock_mgmt_io(phba);
1328 phba->link_state = LPFC_HBA_ERROR;
1333 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1334 * @phba: pointer to lpfc hba data structure.
1336 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1337 * other than Port Error 6 has been detected.
1340 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1342 spin_lock_irq(&phba->hbalock);
1343 phba->link_state = LPFC_HBA_ERROR;
1344 spin_unlock_irq(&phba->hbalock);
1346 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1348 lpfc_hba_down_post(phba);
1349 lpfc_unblock_mgmt_io(phba);
1353 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1354 * @phba: pointer to lpfc hba data structure.
1356 * This routine is invoked to handle the deferred HBA hardware error
1357 * conditions. This type of error is indicated by HBA by setting ER1
1358 * and another ER bit in the host status register. The driver will
1359 * wait until the ER1 bit clears before handling the error condition.
1362 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1364 uint32_t old_host_status = phba->work_hs;
1365 struct lpfc_sli *psli = &phba->sli;
1367 /* If the pci channel is offline, ignore possible errors,
1368 * since we cannot communicate with the pci card anyway.
1370 if (pci_channel_offline(phba->pcidev)) {
1371 spin_lock_irq(&phba->hbalock);
1372 phba->hba_flag &= ~DEFER_ERATT;
1373 spin_unlock_irq(&phba->hbalock);
1377 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1378 "0479 Deferred Adapter Hardware Error "
1379 "Data: x%x x%x x%x\n",
1381 phba->work_status[0], phba->work_status[1]);
1383 spin_lock_irq(&phba->hbalock);
1384 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1385 spin_unlock_irq(&phba->hbalock);
1389 * Firmware stops when it triggred erratt. That could cause the I/Os
1390 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1391 * SCSI layer retry it after re-establishing link.
1393 lpfc_sli_abort_fcp_rings(phba);
1396 * There was a firmware error. Take the hba offline and then
1397 * attempt to restart it.
1399 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1402 /* Wait for the ER1 bit to clear.*/
1403 while (phba->work_hs & HS_FFER1) {
1405 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1406 phba->work_hs = UNPLUG_ERR ;
1409 /* If driver is unloading let the worker thread continue */
1410 if (phba->pport->load_flag & FC_UNLOADING) {
1417 * This is to ptrotect against a race condition in which
1418 * first write to the host attention register clear the
1419 * host status register.
1421 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1422 phba->work_hs = old_host_status & ~HS_FFER1;
1424 spin_lock_irq(&phba->hbalock);
1425 phba->hba_flag &= ~DEFER_ERATT;
1426 spin_unlock_irq(&phba->hbalock);
1427 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1428 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1432 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1434 struct lpfc_board_event_header board_event;
1435 struct Scsi_Host *shost;
1437 board_event.event_type = FC_REG_BOARD_EVENT;
1438 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1439 shost = lpfc_shost_from_vport(phba->pport);
1440 fc_host_post_vendor_event(shost, fc_get_event_number(),
1441 sizeof(board_event),
1442 (char *) &board_event,
1447 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1448 * @phba: pointer to lpfc hba data structure.
1450 * This routine is invoked to handle the following HBA hardware error
1452 * 1 - HBA error attention interrupt
1453 * 2 - DMA ring index out of range
1454 * 3 - Mailbox command came back as unknown
1457 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1459 struct lpfc_vport *vport = phba->pport;
1460 struct lpfc_sli *psli = &phba->sli;
1461 uint32_t event_data;
1462 unsigned long temperature;
1463 struct temp_event temp_event_data;
1464 struct Scsi_Host *shost;
1466 /* If the pci channel is offline, ignore possible errors,
1467 * since we cannot communicate with the pci card anyway.
1469 if (pci_channel_offline(phba->pcidev)) {
1470 spin_lock_irq(&phba->hbalock);
1471 phba->hba_flag &= ~DEFER_ERATT;
1472 spin_unlock_irq(&phba->hbalock);
1476 /* If resets are disabled then leave the HBA alone and return */
1477 if (!phba->cfg_enable_hba_reset)
1480 /* Send an internal error event to mgmt application */
1481 lpfc_board_errevt_to_mgmt(phba);
1483 if (phba->hba_flag & DEFER_ERATT)
1484 lpfc_handle_deferred_eratt(phba);
1486 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1487 if (phba->work_hs & HS_FFER6)
1488 /* Re-establishing Link */
1489 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1490 "1301 Re-establishing Link "
1491 "Data: x%x x%x x%x\n",
1492 phba->work_hs, phba->work_status[0],
1493 phba->work_status[1]);
1494 if (phba->work_hs & HS_FFER8)
1495 /* Device Zeroization */
1496 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1497 "2861 Host Authentication device "
1498 "zeroization Data:x%x x%x x%x\n",
1499 phba->work_hs, phba->work_status[0],
1500 phba->work_status[1]);
1502 spin_lock_irq(&phba->hbalock);
1503 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1504 spin_unlock_irq(&phba->hbalock);
1507 * Firmware stops when it triggled erratt with HS_FFER6.
1508 * That could cause the I/Os dropped by the firmware.
1509 * Error iocb (I/O) on txcmplq and let the SCSI layer
1510 * retry it after re-establishing link.
1512 lpfc_sli_abort_fcp_rings(phba);
1515 * There was a firmware error. Take the hba offline and then
1516 * attempt to restart it.
1518 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1520 lpfc_sli_brdrestart(phba);
1521 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1522 lpfc_unblock_mgmt_io(phba);
1525 lpfc_unblock_mgmt_io(phba);
1526 } else if (phba->work_hs & HS_CRIT_TEMP) {
1527 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1528 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1529 temp_event_data.event_code = LPFC_CRIT_TEMP;
1530 temp_event_data.data = (uint32_t)temperature;
1532 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1533 "0406 Adapter maximum temperature exceeded "
1534 "(%ld), taking this port offline "
1535 "Data: x%x x%x x%x\n",
1536 temperature, phba->work_hs,
1537 phba->work_status[0], phba->work_status[1]);
1539 shost = lpfc_shost_from_vport(phba->pport);
1540 fc_host_post_vendor_event(shost, fc_get_event_number(),
1541 sizeof(temp_event_data),
1542 (char *) &temp_event_data,
1543 SCSI_NL_VID_TYPE_PCI
1544 | PCI_VENDOR_ID_EMULEX);
1546 spin_lock_irq(&phba->hbalock);
1547 phba->over_temp_state = HBA_OVER_TEMP;
1548 spin_unlock_irq(&phba->hbalock);
1549 lpfc_offline_eratt(phba);
1552 /* The if clause above forces this code path when the status
1553 * failure is a value other than FFER6. Do not call the offline
1554 * twice. This is the adapter hardware error path.
1556 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1557 "0457 Adapter Hardware Error "
1558 "Data: x%x x%x x%x\n",
1560 phba->work_status[0], phba->work_status[1]);
1562 event_data = FC_REG_DUMP_EVENT;
1563 shost = lpfc_shost_from_vport(vport);
1564 fc_host_post_vendor_event(shost, fc_get_event_number(),
1565 sizeof(event_data), (char *) &event_data,
1566 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1568 lpfc_offline_eratt(phba);
1574 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1575 * @phba: pointer to lpfc hba data structure.
1576 * @mbx_action: flag for mailbox shutdown action.
1578 * This routine is invoked to perform an SLI4 port PCI function reset in
1579 * response to port status register polling attention. It waits for port
1580 * status register (ERR, RDY, RN) bits before proceeding with function reset.
1581 * During this process, interrupt vectors are freed and later requested
1582 * for handling possible port resource change.
1585 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1591 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
1592 LPFC_SLI_INTF_IF_TYPE_2) {
1594 * On error status condition, driver need to wait for port
1595 * ready before performing reset.
1597 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1602 /* need reset: attempt for port recovery */
1604 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1605 "2887 Reset Needed: Attempting Port "
1607 lpfc_offline_prep(phba, mbx_action);
1609 /* release interrupt for possible resource change */
1610 lpfc_sli4_disable_intr(phba);
1611 lpfc_sli_brdrestart(phba);
1612 /* request and enable interrupt */
1613 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1614 if (intr_mode == LPFC_INTR_ERROR) {
1615 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1616 "3175 Failed to enable interrupt\n");
1619 phba->intr_mode = intr_mode;
1620 rc = lpfc_online(phba);
1622 lpfc_unblock_mgmt_io(phba);
1628 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1629 * @phba: pointer to lpfc hba data structure.
1631 * This routine is invoked to handle the SLI4 HBA hardware error attention
1635 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1637 struct lpfc_vport *vport = phba->pport;
1638 uint32_t event_data;
1639 struct Scsi_Host *shost;
1641 struct lpfc_register portstat_reg = {0};
1642 uint32_t reg_err1, reg_err2;
1643 uint32_t uerrlo_reg, uemasklo_reg;
1644 uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1645 bool en_rn_msg = true;
1646 struct temp_event temp_event_data;
1647 struct lpfc_register portsmphr_reg;
1650 /* If the pci channel is offline, ignore possible errors, since
1651 * we cannot communicate with the pci card anyway.
1653 if (pci_channel_offline(phba->pcidev))
1656 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1657 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1659 case LPFC_SLI_INTF_IF_TYPE_0:
1660 pci_rd_rc1 = lpfc_readl(
1661 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1663 pci_rd_rc2 = lpfc_readl(
1664 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1666 /* consider PCI bus read error as pci_channel_offline */
1667 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1669 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1670 lpfc_sli4_offline_eratt(phba);
1673 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1674 "7623 Checking UE recoverable");
1676 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1677 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1678 &portsmphr_reg.word0))
1681 smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1683 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1684 LPFC_PORT_SEM_UE_RECOVERABLE)
1686 /*Sleep for 1Sec, before checking SEMAPHORE */
1690 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1691 "4827 smphr_port_status x%x : Waited %dSec",
1692 smphr_port_status, i);
1694 /* Recoverable UE, reset the HBA device */
1695 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1696 LPFC_PORT_SEM_UE_RECOVERABLE) {
1697 for (i = 0; i < 20; i++) {
1699 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1700 &portsmphr_reg.word0) &&
1701 (LPFC_POST_STAGE_PORT_READY ==
1702 bf_get(lpfc_port_smphr_port_status,
1704 rc = lpfc_sli4_port_sta_fn_reset(phba,
1705 LPFC_MBX_NO_WAIT, en_rn_msg);
1708 lpfc_printf_log(phba,
1710 "4215 Failed to recover UE");
1715 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1716 "7624 Firmware not ready: Failing UE recovery,"
1717 " waited %dSec", i);
1718 lpfc_sli4_offline_eratt(phba);
1721 case LPFC_SLI_INTF_IF_TYPE_2:
1722 pci_rd_rc1 = lpfc_readl(
1723 phba->sli4_hba.u.if_type2.STATUSregaddr,
1724 &portstat_reg.word0);
1725 /* consider PCI bus read error as pci_channel_offline */
1726 if (pci_rd_rc1 == -EIO) {
1727 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1728 "3151 PCI bus read access failure: x%x\n",
1729 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1732 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1733 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1734 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1735 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1736 "2889 Port Overtemperature event, "
1737 "taking port offline Data: x%x x%x\n",
1738 reg_err1, reg_err2);
1740 phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1741 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1742 temp_event_data.event_code = LPFC_CRIT_TEMP;
1743 temp_event_data.data = 0xFFFFFFFF;
1745 shost = lpfc_shost_from_vport(phba->pport);
1746 fc_host_post_vendor_event(shost, fc_get_event_number(),
1747 sizeof(temp_event_data),
1748 (char *)&temp_event_data,
1749 SCSI_NL_VID_TYPE_PCI
1750 | PCI_VENDOR_ID_EMULEX);
1752 spin_lock_irq(&phba->hbalock);
1753 phba->over_temp_state = HBA_OVER_TEMP;
1754 spin_unlock_irq(&phba->hbalock);
1755 lpfc_sli4_offline_eratt(phba);
1758 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1759 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1760 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1761 "3143 Port Down: Firmware Update "
1764 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1765 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1766 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1767 "3144 Port Down: Debug Dump\n");
1768 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1769 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1770 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1771 "3145 Port Down: Provisioning\n");
1773 /* If resets are disabled then leave the HBA alone and return */
1774 if (!phba->cfg_enable_hba_reset)
1777 /* Check port status register for function reset */
1778 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1781 /* don't report event on forced debug dump */
1782 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1783 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1788 /* fall through for not able to recover */
1789 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1790 "3152 Unrecoverable error, bring the port "
1792 lpfc_sli4_offline_eratt(phba);
1794 case LPFC_SLI_INTF_IF_TYPE_1:
1798 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1799 "3123 Report dump event to upper layer\n");
1800 /* Send an internal error event to mgmt application */
1801 lpfc_board_errevt_to_mgmt(phba);
1803 event_data = FC_REG_DUMP_EVENT;
1804 shost = lpfc_shost_from_vport(vport);
1805 fc_host_post_vendor_event(shost, fc_get_event_number(),
1806 sizeof(event_data), (char *) &event_data,
1807 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1811 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1812 * @phba: pointer to lpfc HBA data structure.
1814 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1815 * routine from the API jump table function pointer from the lpfc_hba struct.
1819 * Any other value - error.
1822 lpfc_handle_eratt(struct lpfc_hba *phba)
1824 (*phba->lpfc_handle_eratt)(phba);
1828 * lpfc_handle_latt - The HBA link event handler
1829 * @phba: pointer to lpfc hba data structure.
1831 * This routine is invoked from the worker thread to handle a HBA host
1832 * attention link event.
1835 lpfc_handle_latt(struct lpfc_hba *phba)
1837 struct lpfc_vport *vport = phba->pport;
1838 struct lpfc_sli *psli = &phba->sli;
1840 volatile uint32_t control;
1841 struct lpfc_dmabuf *mp;
1844 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1847 goto lpfc_handle_latt_err_exit;
1850 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1853 goto lpfc_handle_latt_free_pmb;
1856 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1859 goto lpfc_handle_latt_free_mp;
1862 /* Cleanup any outstanding ELS commands */
1863 lpfc_els_flush_all_cmd(phba);
1865 psli->slistat.link_event++;
1866 lpfc_read_topology(phba, pmb, mp);
1867 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1869 /* Block ELS IOCBs until we have processed this mbox command */
1870 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1871 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1872 if (rc == MBX_NOT_FINISHED) {
1874 goto lpfc_handle_latt_free_mbuf;
1877 /* Clear Link Attention in HA REG */
1878 spin_lock_irq(&phba->hbalock);
1879 writel(HA_LATT, phba->HAregaddr);
1880 readl(phba->HAregaddr); /* flush */
1881 spin_unlock_irq(&phba->hbalock);
1885 lpfc_handle_latt_free_mbuf:
1886 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1887 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1888 lpfc_handle_latt_free_mp:
1890 lpfc_handle_latt_free_pmb:
1891 mempool_free(pmb, phba->mbox_mem_pool);
1892 lpfc_handle_latt_err_exit:
1893 /* Enable Link attention interrupts */
1894 spin_lock_irq(&phba->hbalock);
1895 psli->sli_flag |= LPFC_PROCESS_LA;
1896 control = readl(phba->HCregaddr);
1897 control |= HC_LAINT_ENA;
1898 writel(control, phba->HCregaddr);
1899 readl(phba->HCregaddr); /* flush */
1901 /* Clear Link Attention in HA REG */
1902 writel(HA_LATT, phba->HAregaddr);
1903 readl(phba->HAregaddr); /* flush */
1904 spin_unlock_irq(&phba->hbalock);
1905 lpfc_linkdown(phba);
1906 phba->link_state = LPFC_HBA_ERROR;
1908 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1909 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1915 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1916 * @phba: pointer to lpfc hba data structure.
1917 * @vpd: pointer to the vital product data.
1918 * @len: length of the vital product data in bytes.
1920 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1921 * an array of characters. In this routine, the ModelName, ProgramType, and
1922 * ModelDesc, etc. fields of the phba data structure will be populated.
1925 * 0 - pointer to the VPD passed in is NULL
1929 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1931 uint8_t lenlo, lenhi;
1941 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1942 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1943 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1945 while (!finished && (index < (len - 4))) {
1946 switch (vpd[index]) {
1954 i = ((((unsigned short)lenhi) << 8) + lenlo);
1963 Length = ((((unsigned short)lenhi) << 8) + lenlo);
1964 if (Length > len - index)
1965 Length = len - index;
1966 while (Length > 0) {
1967 /* Look for Serial Number */
1968 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1975 phba->SerialNumber[j++] = vpd[index++];
1979 phba->SerialNumber[j] = 0;
1982 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1983 phba->vpd_flag |= VPD_MODEL_DESC;
1990 phba->ModelDesc[j++] = vpd[index++];
1994 phba->ModelDesc[j] = 0;
1997 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1998 phba->vpd_flag |= VPD_MODEL_NAME;
2005 phba->ModelName[j++] = vpd[index++];
2009 phba->ModelName[j] = 0;
2012 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2013 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2020 phba->ProgramType[j++] = vpd[index++];
2024 phba->ProgramType[j] = 0;
2027 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2028 phba->vpd_flag |= VPD_PORT;
2035 if ((phba->sli_rev == LPFC_SLI_REV4) &&
2036 (phba->sli4_hba.pport_name_sta ==
2037 LPFC_SLI4_PPNAME_GET)) {
2041 phba->Port[j++] = vpd[index++];
2045 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2046 (phba->sli4_hba.pport_name_sta ==
2047 LPFC_SLI4_PPNAME_NON))
2074 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2075 * @phba: pointer to lpfc hba data structure.
2076 * @mdp: pointer to the data structure to hold the derived model name.
2077 * @descp: pointer to the data structure to hold the derived description.
2079 * This routine retrieves HBA's description based on its registered PCI device
2080 * ID. The @descp passed into this function points to an array of 256 chars. It
2081 * shall be returned with the model name, maximum speed, and the host bus type.
2082 * The @mdp passed into this function points to an array of 80 chars. When the
2083 * function returns, the @mdp will be filled with the model name.
2086 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2089 uint16_t dev_id = phba->pcidev->device;
2092 int oneConnect = 0; /* default is not a oneConnect */
2097 } m = {"<Unknown>", "", ""};
2099 if (mdp && mdp[0] != '\0'
2100 && descp && descp[0] != '\0')
2103 if (phba->lmt & LMT_32Gb)
2105 else if (phba->lmt & LMT_16Gb)
2107 else if (phba->lmt & LMT_10Gb)
2109 else if (phba->lmt & LMT_8Gb)
2111 else if (phba->lmt & LMT_4Gb)
2113 else if (phba->lmt & LMT_2Gb)
2115 else if (phba->lmt & LMT_1Gb)
2123 case PCI_DEVICE_ID_FIREFLY:
2124 m = (typeof(m)){"LP6000", "PCI",
2125 "Obsolete, Unsupported Fibre Channel Adapter"};
2127 case PCI_DEVICE_ID_SUPERFLY:
2128 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2129 m = (typeof(m)){"LP7000", "PCI", ""};
2131 m = (typeof(m)){"LP7000E", "PCI", ""};
2132 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2134 case PCI_DEVICE_ID_DRAGONFLY:
2135 m = (typeof(m)){"LP8000", "PCI",
2136 "Obsolete, Unsupported Fibre Channel Adapter"};
2138 case PCI_DEVICE_ID_CENTAUR:
2139 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2140 m = (typeof(m)){"LP9002", "PCI", ""};
2142 m = (typeof(m)){"LP9000", "PCI", ""};
2143 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2145 case PCI_DEVICE_ID_RFLY:
2146 m = (typeof(m)){"LP952", "PCI",
2147 "Obsolete, Unsupported Fibre Channel Adapter"};
2149 case PCI_DEVICE_ID_PEGASUS:
2150 m = (typeof(m)){"LP9802", "PCI-X",
2151 "Obsolete, Unsupported Fibre Channel Adapter"};
2153 case PCI_DEVICE_ID_THOR:
2154 m = (typeof(m)){"LP10000", "PCI-X",
2155 "Obsolete, Unsupported Fibre Channel Adapter"};
2157 case PCI_DEVICE_ID_VIPER:
2158 m = (typeof(m)){"LPX1000", "PCI-X",
2159 "Obsolete, Unsupported Fibre Channel Adapter"};
2161 case PCI_DEVICE_ID_PFLY:
2162 m = (typeof(m)){"LP982", "PCI-X",
2163 "Obsolete, Unsupported Fibre Channel Adapter"};
2165 case PCI_DEVICE_ID_TFLY:
2166 m = (typeof(m)){"LP1050", "PCI-X",
2167 "Obsolete, Unsupported Fibre Channel Adapter"};
2169 case PCI_DEVICE_ID_HELIOS:
2170 m = (typeof(m)){"LP11000", "PCI-X2",
2171 "Obsolete, Unsupported Fibre Channel Adapter"};
2173 case PCI_DEVICE_ID_HELIOS_SCSP:
2174 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2175 "Obsolete, Unsupported Fibre Channel Adapter"};
2177 case PCI_DEVICE_ID_HELIOS_DCSP:
2178 m = (typeof(m)){"LP11002-SP", "PCI-X2",
2179 "Obsolete, Unsupported Fibre Channel Adapter"};
2181 case PCI_DEVICE_ID_NEPTUNE:
2182 m = (typeof(m)){"LPe1000", "PCIe",
2183 "Obsolete, Unsupported Fibre Channel Adapter"};
2185 case PCI_DEVICE_ID_NEPTUNE_SCSP:
2186 m = (typeof(m)){"LPe1000-SP", "PCIe",
2187 "Obsolete, Unsupported Fibre Channel Adapter"};
2189 case PCI_DEVICE_ID_NEPTUNE_DCSP:
2190 m = (typeof(m)){"LPe1002-SP", "PCIe",
2191 "Obsolete, Unsupported Fibre Channel Adapter"};
2193 case PCI_DEVICE_ID_BMID:
2194 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2196 case PCI_DEVICE_ID_BSMB:
2197 m = (typeof(m)){"LP111", "PCI-X2",
2198 "Obsolete, Unsupported Fibre Channel Adapter"};
2200 case PCI_DEVICE_ID_ZEPHYR:
2201 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2203 case PCI_DEVICE_ID_ZEPHYR_SCSP:
2204 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2206 case PCI_DEVICE_ID_ZEPHYR_DCSP:
2207 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2210 case PCI_DEVICE_ID_ZMID:
2211 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2213 case PCI_DEVICE_ID_ZSMB:
2214 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2216 case PCI_DEVICE_ID_LP101:
2217 m = (typeof(m)){"LP101", "PCI-X",
2218 "Obsolete, Unsupported Fibre Channel Adapter"};
2220 case PCI_DEVICE_ID_LP10000S:
2221 m = (typeof(m)){"LP10000-S", "PCI",
2222 "Obsolete, Unsupported Fibre Channel Adapter"};
2224 case PCI_DEVICE_ID_LP11000S:
2225 m = (typeof(m)){"LP11000-S", "PCI-X2",
2226 "Obsolete, Unsupported Fibre Channel Adapter"};
2228 case PCI_DEVICE_ID_LPE11000S:
2229 m = (typeof(m)){"LPe11000-S", "PCIe",
2230 "Obsolete, Unsupported Fibre Channel Adapter"};
2232 case PCI_DEVICE_ID_SAT:
2233 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2235 case PCI_DEVICE_ID_SAT_MID:
2236 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2238 case PCI_DEVICE_ID_SAT_SMB:
2239 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2241 case PCI_DEVICE_ID_SAT_DCSP:
2242 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2244 case PCI_DEVICE_ID_SAT_SCSP:
2245 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2247 case PCI_DEVICE_ID_SAT_S:
2248 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2250 case PCI_DEVICE_ID_HORNET:
2251 m = (typeof(m)){"LP21000", "PCIe",
2252 "Obsolete, Unsupported FCoE Adapter"};
2255 case PCI_DEVICE_ID_PROTEUS_VF:
2256 m = (typeof(m)){"LPev12000", "PCIe IOV",
2257 "Obsolete, Unsupported Fibre Channel Adapter"};
2259 case PCI_DEVICE_ID_PROTEUS_PF:
2260 m = (typeof(m)){"LPev12000", "PCIe IOV",
2261 "Obsolete, Unsupported Fibre Channel Adapter"};
2263 case PCI_DEVICE_ID_PROTEUS_S:
2264 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2265 "Obsolete, Unsupported Fibre Channel Adapter"};
2267 case PCI_DEVICE_ID_TIGERSHARK:
2269 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2271 case PCI_DEVICE_ID_TOMCAT:
2273 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2275 case PCI_DEVICE_ID_FALCON:
2276 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2277 "EmulexSecure Fibre"};
2279 case PCI_DEVICE_ID_BALIUS:
2280 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2281 "Obsolete, Unsupported Fibre Channel Adapter"};
2283 case PCI_DEVICE_ID_LANCER_FC:
2284 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2286 case PCI_DEVICE_ID_LANCER_FC_VF:
2287 m = (typeof(m)){"LPe16000", "PCIe",
2288 "Obsolete, Unsupported Fibre Channel Adapter"};
2290 case PCI_DEVICE_ID_LANCER_FCOE:
2292 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2294 case PCI_DEVICE_ID_LANCER_FCOE_VF:
2296 m = (typeof(m)){"OCe15100", "PCIe",
2297 "Obsolete, Unsupported FCoE"};
2299 case PCI_DEVICE_ID_LANCER_G6_FC:
2300 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2302 case PCI_DEVICE_ID_SKYHAWK:
2303 case PCI_DEVICE_ID_SKYHAWK_VF:
2305 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2308 m = (typeof(m)){"Unknown", "", ""};
2312 if (mdp && mdp[0] == '\0')
2313 snprintf(mdp, 79,"%s", m.name);
2315 * oneConnect hba requires special processing, they are all initiators
2316 * and we put the port number on the end
2318 if (descp && descp[0] == '\0') {
2320 snprintf(descp, 255,
2321 "Emulex OneConnect %s, %s Initiator %s",
2324 else if (max_speed == 0)
2325 snprintf(descp, 255,
2327 m.name, m.bus, m.function);
2329 snprintf(descp, 255,
2330 "Emulex %s %d%s %s %s",
2331 m.name, max_speed, (GE) ? "GE" : "Gb",
2337 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2338 * @phba: pointer to lpfc hba data structure.
2339 * @pring: pointer to a IOCB ring.
2340 * @cnt: the number of IOCBs to be posted to the IOCB ring.
2342 * This routine posts a given number of IOCBs with the associated DMA buffer
2343 * descriptors specified by the cnt argument to the given IOCB ring.
2346 * The number of IOCBs NOT able to be posted to the IOCB ring.
2349 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2352 struct lpfc_iocbq *iocb;
2353 struct lpfc_dmabuf *mp1, *mp2;
2355 cnt += pring->missbufcnt;
2357 /* While there are buffers to post */
2359 /* Allocate buffer for command iocb */
2360 iocb = lpfc_sli_get_iocbq(phba);
2362 pring->missbufcnt = cnt;
2367 /* 2 buffers can be posted per command */
2368 /* Allocate buffer to post */
2369 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2371 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2372 if (!mp1 || !mp1->virt) {
2374 lpfc_sli_release_iocbq(phba, iocb);
2375 pring->missbufcnt = cnt;
2379 INIT_LIST_HEAD(&mp1->list);
2380 /* Allocate buffer to post */
2382 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2384 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2386 if (!mp2 || !mp2->virt) {
2388 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2390 lpfc_sli_release_iocbq(phba, iocb);
2391 pring->missbufcnt = cnt;
2395 INIT_LIST_HEAD(&mp2->list);
2400 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2401 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2402 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2403 icmd->ulpBdeCount = 1;
2406 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2407 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2408 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2410 icmd->ulpBdeCount = 2;
2413 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2416 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2418 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2422 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2426 lpfc_sli_release_iocbq(phba, iocb);
2427 pring->missbufcnt = cnt;
2430 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2432 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2434 pring->missbufcnt = 0;
2439 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2440 * @phba: pointer to lpfc hba data structure.
2442 * This routine posts initial receive IOCB buffers to the ELS ring. The
2443 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2447 * 0 - success (currently always success)
2450 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2452 struct lpfc_sli *psli = &phba->sli;
2454 /* Ring 0, ELS / CT buffers */
2455 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2456 /* Ring 2 - FCP no buffers needed */
2461 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2464 * lpfc_sha_init - Set up initial array of hash table entries
2465 * @HashResultPointer: pointer to an array as hash table.
2467 * This routine sets up the initial values to the array of hash table entries
2471 lpfc_sha_init(uint32_t * HashResultPointer)
2473 HashResultPointer[0] = 0x67452301;
2474 HashResultPointer[1] = 0xEFCDAB89;
2475 HashResultPointer[2] = 0x98BADCFE;
2476 HashResultPointer[3] = 0x10325476;
2477 HashResultPointer[4] = 0xC3D2E1F0;
2481 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2482 * @HashResultPointer: pointer to an initial/result hash table.
2483 * @HashWorkingPointer: pointer to an working hash table.
2485 * This routine iterates an initial hash table pointed by @HashResultPointer
2486 * with the values from the working hash table pointeed by @HashWorkingPointer.
2487 * The results are putting back to the initial hash table, returned through
2488 * the @HashResultPointer as the result hash table.
2491 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2495 uint32_t A, B, C, D, E;
2498 HashWorkingPointer[t] =
2500 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2502 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2503 } while (++t <= 79);
2505 A = HashResultPointer[0];
2506 B = HashResultPointer[1];
2507 C = HashResultPointer[2];
2508 D = HashResultPointer[3];
2509 E = HashResultPointer[4];
2513 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2514 } else if (t < 40) {
2515 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2516 } else if (t < 60) {
2517 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2519 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2521 TEMP += S(5, A) + E + HashWorkingPointer[t];
2527 } while (++t <= 79);
2529 HashResultPointer[0] += A;
2530 HashResultPointer[1] += B;
2531 HashResultPointer[2] += C;
2532 HashResultPointer[3] += D;
2533 HashResultPointer[4] += E;
2538 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2539 * @RandomChallenge: pointer to the entry of host challenge random number array.
2540 * @HashWorking: pointer to the entry of the working hash array.
2542 * This routine calculates the working hash array referred by @HashWorking
2543 * from the challenge random numbers associated with the host, referred by
2544 * @RandomChallenge. The result is put into the entry of the working hash
2545 * array and returned by reference through @HashWorking.
2548 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2550 *HashWorking = (*RandomChallenge ^ *HashWorking);
2554 * lpfc_hba_init - Perform special handling for LC HBA initialization
2555 * @phba: pointer to lpfc hba data structure.
2556 * @hbainit: pointer to an array of unsigned 32-bit integers.
2558 * This routine performs the special handling for LC HBA initialization.
2561 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2564 uint32_t *HashWorking;
2565 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2567 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2571 HashWorking[0] = HashWorking[78] = *pwwnn++;
2572 HashWorking[1] = HashWorking[79] = *pwwnn;
2574 for (t = 0; t < 7; t++)
2575 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2577 lpfc_sha_init(hbainit);
2578 lpfc_sha_iterate(hbainit, HashWorking);
2583 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2584 * @vport: pointer to a virtual N_Port data structure.
2586 * This routine performs the necessary cleanups before deleting the @vport.
2587 * It invokes the discovery state machine to perform necessary state
2588 * transitions and to release the ndlps associated with the @vport. Note,
2589 * the physical port is treated as @vport 0.
2592 lpfc_cleanup(struct lpfc_vport *vport)
2594 struct lpfc_hba *phba = vport->phba;
2595 struct lpfc_nodelist *ndlp, *next_ndlp;
2598 if (phba->link_state > LPFC_LINK_DOWN)
2599 lpfc_port_link_failure(vport);
2601 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2602 if (!NLP_CHK_NODE_ACT(ndlp)) {
2603 ndlp = lpfc_enable_node(vport, ndlp,
2604 NLP_STE_UNUSED_NODE);
2607 spin_lock_irq(&phba->ndlp_lock);
2608 NLP_SET_FREE_REQ(ndlp);
2609 spin_unlock_irq(&phba->ndlp_lock);
2610 /* Trigger the release of the ndlp memory */
2614 spin_lock_irq(&phba->ndlp_lock);
2615 if (NLP_CHK_FREE_REQ(ndlp)) {
2616 /* The ndlp should not be in memory free mode already */
2617 spin_unlock_irq(&phba->ndlp_lock);
2620 /* Indicate request for freeing ndlp memory */
2621 NLP_SET_FREE_REQ(ndlp);
2622 spin_unlock_irq(&phba->ndlp_lock);
2624 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2625 ndlp->nlp_DID == Fabric_DID) {
2626 /* Just free up ndlp with Fabric_DID for vports */
2631 /* take care of nodes in unused state before the state
2632 * machine taking action.
2634 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2639 if (ndlp->nlp_type & NLP_FABRIC)
2640 lpfc_disc_state_machine(vport, ndlp, NULL,
2641 NLP_EVT_DEVICE_RECOVERY);
2643 lpfc_disc_state_machine(vport, ndlp, NULL,
2647 /* At this point, ALL ndlp's should be gone
2648 * because of the previous NLP_EVT_DEVICE_RM.
2649 * Lets wait for this to happen, if needed.
2651 while (!list_empty(&vport->fc_nodes)) {
2653 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2654 "0233 Nodelist not empty\n");
2655 list_for_each_entry_safe(ndlp, next_ndlp,
2656 &vport->fc_nodes, nlp_listp) {
2657 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2659 "0282 did:x%x ndlp:x%p "
2660 "usgmap:x%x refcnt:%d\n",
2661 ndlp->nlp_DID, (void *)ndlp,
2664 &ndlp->kref.refcount));
2669 /* Wait for any activity on ndlps to settle */
2672 lpfc_cleanup_vports_rrqs(vport, NULL);
2676 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2677 * @vport: pointer to a virtual N_Port data structure.
2679 * This routine stops all the timers associated with a @vport. This function
2680 * is invoked before disabling or deleting a @vport. Note that the physical
2681 * port is treated as @vport 0.
2684 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2686 del_timer_sync(&vport->els_tmofunc);
2687 del_timer_sync(&vport->delayed_disc_tmo);
2688 lpfc_can_disctmo(vport);
2693 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2694 * @phba: pointer to lpfc hba data structure.
2696 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2697 * caller of this routine should already hold the host lock.
2700 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2702 /* Clear pending FCF rediscovery wait flag */
2703 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2705 /* Now, try to stop the timer */
2706 del_timer(&phba->fcf.redisc_wait);
2710 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2711 * @phba: pointer to lpfc hba data structure.
2713 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2714 * checks whether the FCF rediscovery wait timer is pending with the host
2715 * lock held before proceeding with disabling the timer and clearing the
2716 * wait timer pendig flag.
2719 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2721 spin_lock_irq(&phba->hbalock);
2722 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2723 /* FCF rediscovery timer already fired or stopped */
2724 spin_unlock_irq(&phba->hbalock);
2727 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2728 /* Clear failover in progress flags */
2729 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2730 spin_unlock_irq(&phba->hbalock);
2734 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2735 * @phba: pointer to lpfc hba data structure.
2737 * This routine stops all the timers associated with a HBA. This function is
2738 * invoked before either putting a HBA offline or unloading the driver.
2741 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2743 lpfc_stop_vport_timers(phba->pport);
2744 del_timer_sync(&phba->sli.mbox_tmo);
2745 del_timer_sync(&phba->fabric_block_timer);
2746 del_timer_sync(&phba->eratt_poll);
2747 del_timer_sync(&phba->hb_tmofunc);
2748 if (phba->sli_rev == LPFC_SLI_REV4) {
2749 del_timer_sync(&phba->rrq_tmr);
2750 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2752 phba->hb_outstanding = 0;
2754 switch (phba->pci_dev_grp) {
2755 case LPFC_PCI_DEV_LP:
2756 /* Stop any LightPulse device specific driver timers */
2757 del_timer_sync(&phba->fcp_poll_timer);
2759 case LPFC_PCI_DEV_OC:
2760 /* Stop any OneConnect device sepcific driver timers */
2761 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2764 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2765 "0297 Invalid device group (x%x)\n",
2773 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2774 * @phba: pointer to lpfc hba data structure.
2776 * This routine marks a HBA's management interface as blocked. Once the HBA's
2777 * management interface is marked as blocked, all the user space access to
2778 * the HBA, whether they are from sysfs interface or libdfc interface will
2779 * all be blocked. The HBA is set to block the management interface when the
2780 * driver prepares the HBA interface for online or offline.
2783 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2785 unsigned long iflag;
2786 uint8_t actcmd = MBX_HEARTBEAT;
2787 unsigned long timeout;
2789 spin_lock_irqsave(&phba->hbalock, iflag);
2790 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2791 spin_unlock_irqrestore(&phba->hbalock, iflag);
2792 if (mbx_action == LPFC_MBX_NO_WAIT)
2794 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2795 spin_lock_irqsave(&phba->hbalock, iflag);
2796 if (phba->sli.mbox_active) {
2797 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2798 /* Determine how long we might wait for the active mailbox
2799 * command to be gracefully completed by firmware.
2801 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2802 phba->sli.mbox_active) * 1000) + jiffies;
2804 spin_unlock_irqrestore(&phba->hbalock, iflag);
2806 /* Wait for the outstnading mailbox command to complete */
2807 while (phba->sli.mbox_active) {
2808 /* Check active mailbox complete status every 2ms */
2810 if (time_after(jiffies, timeout)) {
2811 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2812 "2813 Mgmt IO is Blocked %x "
2813 "- mbox cmd %x still active\n",
2814 phba->sli.sli_flag, actcmd);
2821 * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2822 * @phba: pointer to lpfc hba data structure.
2824 * Allocate RPIs for all active remote nodes. This is needed whenever
2825 * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2826 * is to fixup the temporary rpi assignments.
2829 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2831 struct lpfc_nodelist *ndlp, *next_ndlp;
2832 struct lpfc_vport **vports;
2835 if (phba->sli_rev != LPFC_SLI_REV4)
2838 vports = lpfc_create_vport_work_array(phba);
2839 if (vports != NULL) {
2840 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2841 if (vports[i]->load_flag & FC_UNLOADING)
2844 list_for_each_entry_safe(ndlp, next_ndlp,
2845 &vports[i]->fc_nodes,
2847 if (NLP_CHK_NODE_ACT(ndlp)) {
2849 lpfc_sli4_alloc_rpi(phba);
2850 lpfc_printf_vlog(ndlp->vport, KERN_INFO,
2852 "0009 rpi:%x DID:%x "
2853 "flg:%x map:%x %p\n",
2863 lpfc_destroy_vport_work_array(phba, vports);
2867 * lpfc_online - Initialize and bring a HBA online
2868 * @phba: pointer to lpfc hba data structure.
2870 * This routine initializes the HBA and brings a HBA online. During this
2871 * process, the management interface is blocked to prevent user space access
2872 * to the HBA interfering with the driver initialization.
2879 lpfc_online(struct lpfc_hba *phba)
2881 struct lpfc_vport *vport;
2882 struct lpfc_vport **vports;
2884 bool vpis_cleared = false;
2888 vport = phba->pport;
2890 if (!(vport->fc_flag & FC_OFFLINE_MODE))
2893 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2894 "0458 Bring Adapter online\n");
2896 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2898 if (!lpfc_sli_queue_setup(phba)) {
2899 lpfc_unblock_mgmt_io(phba);
2903 if (phba->sli_rev == LPFC_SLI_REV4) {
2904 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2905 lpfc_unblock_mgmt_io(phba);
2908 spin_lock_irq(&phba->hbalock);
2909 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2910 vpis_cleared = true;
2911 spin_unlock_irq(&phba->hbalock);
2913 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2914 lpfc_unblock_mgmt_io(phba);
2919 vports = lpfc_create_vport_work_array(phba);
2920 if (vports != NULL) {
2921 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2922 struct Scsi_Host *shost;
2923 shost = lpfc_shost_from_vport(vports[i]);
2924 spin_lock_irq(shost->host_lock);
2925 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2926 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2927 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2928 if (phba->sli_rev == LPFC_SLI_REV4) {
2929 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2930 if ((vpis_cleared) &&
2931 (vports[i]->port_type !=
2932 LPFC_PHYSICAL_PORT))
2935 spin_unlock_irq(shost->host_lock);
2938 lpfc_destroy_vport_work_array(phba, vports);
2940 lpfc_unblock_mgmt_io(phba);
2945 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2946 * @phba: pointer to lpfc hba data structure.
2948 * This routine marks a HBA's management interface as not blocked. Once the
2949 * HBA's management interface is marked as not blocked, all the user space
2950 * access to the HBA, whether they are from sysfs interface or libdfc
2951 * interface will be allowed. The HBA is set to block the management interface
2952 * when the driver prepares the HBA interface for online or offline and then
2953 * set to unblock the management interface afterwards.
2956 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2958 unsigned long iflag;
2960 spin_lock_irqsave(&phba->hbalock, iflag);
2961 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2962 spin_unlock_irqrestore(&phba->hbalock, iflag);
2966 * lpfc_offline_prep - Prepare a HBA to be brought offline
2967 * @phba: pointer to lpfc hba data structure.
2969 * This routine is invoked to prepare a HBA to be brought offline. It performs
2970 * unregistration login to all the nodes on all vports and flushes the mailbox
2971 * queue to make it ready to be brought offline.
2974 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2976 struct lpfc_vport *vport = phba->pport;
2977 struct lpfc_nodelist *ndlp, *next_ndlp;
2978 struct lpfc_vport **vports;
2979 struct Scsi_Host *shost;
2982 if (vport->fc_flag & FC_OFFLINE_MODE)
2985 lpfc_block_mgmt_io(phba, mbx_action);
2987 lpfc_linkdown(phba);
2989 /* Issue an unreg_login to all nodes on all vports */
2990 vports = lpfc_create_vport_work_array(phba);
2991 if (vports != NULL) {
2992 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2993 if (vports[i]->load_flag & FC_UNLOADING)
2995 shost = lpfc_shost_from_vport(vports[i]);
2996 spin_lock_irq(shost->host_lock);
2997 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2998 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2999 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3000 spin_unlock_irq(shost->host_lock);
3002 shost = lpfc_shost_from_vport(vports[i]);
3003 list_for_each_entry_safe(ndlp, next_ndlp,
3004 &vports[i]->fc_nodes,
3006 if (!NLP_CHK_NODE_ACT(ndlp))
3008 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3010 if (ndlp->nlp_type & NLP_FABRIC) {
3011 lpfc_disc_state_machine(vports[i], ndlp,
3012 NULL, NLP_EVT_DEVICE_RECOVERY);
3013 lpfc_disc_state_machine(vports[i], ndlp,
3014 NULL, NLP_EVT_DEVICE_RM);
3016 spin_lock_irq(shost->host_lock);
3017 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3018 spin_unlock_irq(shost->host_lock);
3020 * Whenever an SLI4 port goes offline, free the
3021 * RPI. Get a new RPI when the adapter port
3022 * comes back online.
3024 if (phba->sli_rev == LPFC_SLI_REV4) {
3025 lpfc_printf_vlog(ndlp->vport,
3026 KERN_INFO, LOG_NODE,
3027 "0011 lpfc_offline: "
3029 "usgmap:x%x rpi:%x\n",
3030 ndlp, ndlp->nlp_DID,
3034 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3036 lpfc_unreg_rpi(vports[i], ndlp);
3040 lpfc_destroy_vport_work_array(phba, vports);
3042 lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3046 * lpfc_offline - Bring a HBA offline
3047 * @phba: pointer to lpfc hba data structure.
3049 * This routine actually brings a HBA offline. It stops all the timers
3050 * associated with the HBA, brings down the SLI layer, and eventually
3051 * marks the HBA as in offline state for the upper layer protocol.
3054 lpfc_offline(struct lpfc_hba *phba)
3056 struct Scsi_Host *shost;
3057 struct lpfc_vport **vports;
3060 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3063 /* stop port and all timers associated with this hba */
3064 lpfc_stop_port(phba);
3065 vports = lpfc_create_vport_work_array(phba);
3067 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3068 lpfc_stop_vport_timers(vports[i]);
3069 lpfc_destroy_vport_work_array(phba, vports);
3070 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3071 "0460 Bring Adapter offline\n");
3072 /* Bring down the SLI Layer and cleanup. The HBA is offline
3074 lpfc_sli_hba_down(phba);
3075 spin_lock_irq(&phba->hbalock);
3077 spin_unlock_irq(&phba->hbalock);
3078 vports = lpfc_create_vport_work_array(phba);
3080 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3081 shost = lpfc_shost_from_vport(vports[i]);
3082 spin_lock_irq(shost->host_lock);
3083 vports[i]->work_port_events = 0;
3084 vports[i]->fc_flag |= FC_OFFLINE_MODE;
3085 spin_unlock_irq(shost->host_lock);
3087 lpfc_destroy_vport_work_array(phba, vports);
3091 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3092 * @phba: pointer to lpfc hba data structure.
3094 * This routine is to free all the SCSI buffers and IOCBs from the driver
3095 * list back to kernel. It is called from lpfc_pci_remove_one to free
3096 * the internal resources before the device is removed from the system.
3099 lpfc_scsi_free(struct lpfc_hba *phba)
3101 struct lpfc_scsi_buf *sb, *sb_next;
3102 struct lpfc_iocbq *io, *io_next;
3104 spin_lock_irq(&phba->hbalock);
3106 /* Release all the lpfc_scsi_bufs maintained by this host. */
3108 spin_lock(&phba->scsi_buf_list_put_lock);
3109 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3111 list_del(&sb->list);
3112 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3115 phba->total_scsi_bufs--;
3117 spin_unlock(&phba->scsi_buf_list_put_lock);
3119 spin_lock(&phba->scsi_buf_list_get_lock);
3120 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3122 list_del(&sb->list);
3123 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3126 phba->total_scsi_bufs--;
3128 spin_unlock(&phba->scsi_buf_list_get_lock);
3130 /* Release all the lpfc_iocbq entries maintained by this host. */
3131 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
3132 list_del(&io->list);
3134 phba->total_iocbq_bufs--;
3137 spin_unlock_irq(&phba->hbalock);
3141 * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
3142 * @phba: pointer to lpfc hba data structure.
3144 * This routine first calculates the sizes of the current els and allocated
3145 * scsi sgl lists, and then goes through all sgls to updates the physical
3146 * XRIs assigned due to port function reset. During port initialization, the
3147 * current els and allocated scsi sgl lists are 0s.
3150 * 0 - successful (for now, it always returns 0)
3153 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
3155 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3156 struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
3157 uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
3158 LIST_HEAD(els_sgl_list);
3159 LIST_HEAD(scsi_sgl_list);
3161 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
3164 * update on pci function's els xri-sgl list
3166 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3167 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3168 /* els xri-sgl expanded */
3169 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3170 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3171 "3157 ELS xri-sgl count increased from "
3172 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3174 /* allocate the additional els sgls */
3175 for (i = 0; i < xri_cnt; i++) {
3176 sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3178 if (sglq_entry == NULL) {
3179 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3180 "2562 Failure to allocate an "
3181 "ELS sgl entry:%d\n", i);
3185 sglq_entry->buff_type = GEN_BUFF_TYPE;
3186 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3188 if (sglq_entry->virt == NULL) {
3190 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3191 "2563 Failure to allocate an "
3192 "ELS mbuf:%d\n", i);
3196 sglq_entry->sgl = sglq_entry->virt;
3197 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3198 sglq_entry->state = SGL_FREED;
3199 list_add_tail(&sglq_entry->list, &els_sgl_list);
3201 spin_lock_irq(&phba->hbalock);
3202 spin_lock(&pring->ring_lock);
3203 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3204 spin_unlock(&pring->ring_lock);
3205 spin_unlock_irq(&phba->hbalock);
3206 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3207 /* els xri-sgl shrinked */
3208 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3209 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3210 "3158 ELS xri-sgl count decreased from "
3211 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3213 spin_lock_irq(&phba->hbalock);
3214 spin_lock(&pring->ring_lock);
3215 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
3216 spin_unlock(&pring->ring_lock);
3217 spin_unlock_irq(&phba->hbalock);
3218 /* release extra els sgls from list */
3219 for (i = 0; i < xri_cnt; i++) {
3220 list_remove_head(&els_sgl_list,
3221 sglq_entry, struct lpfc_sglq, list);
3223 lpfc_mbuf_free(phba, sglq_entry->virt,
3228 spin_lock_irq(&phba->hbalock);
3229 spin_lock(&pring->ring_lock);
3230 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3231 spin_unlock(&pring->ring_lock);
3232 spin_unlock_irq(&phba->hbalock);
3234 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3235 "3163 ELS xri-sgl count unchanged: %d\n",
3237 phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3239 /* update xris to els sgls on the list */
3241 sglq_entry_next = NULL;
3242 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3243 &phba->sli4_hba.lpfc_sgl_list, list) {
3244 lxri = lpfc_sli4_next_xritag(phba);
3245 if (lxri == NO_XRI) {
3246 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3247 "2400 Failed to allocate xri for "
3252 sglq_entry->sli4_lxritag = lxri;
3253 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3257 * update on pci function's allocated scsi xri-sgl list
3259 phba->total_scsi_bufs = 0;
3261 /* maximum number of xris available for scsi buffers */
3262 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3265 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3266 "2401 Current allocated SCSI xri-sgl count:%d, "
3267 "maximum SCSI xri count:%d\n",
3268 phba->sli4_hba.scsi_xri_cnt,
3269 phba->sli4_hba.scsi_xri_max);
3271 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3272 spin_lock(&phba->scsi_buf_list_put_lock);
3273 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3274 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3275 spin_unlock(&phba->scsi_buf_list_put_lock);
3276 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3278 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3279 /* max scsi xri shrinked below the allocated scsi buffers */
3280 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3281 phba->sli4_hba.scsi_xri_max;
3282 /* release the extra allocated scsi buffers */
3283 for (i = 0; i < scsi_xri_cnt; i++) {
3284 list_remove_head(&scsi_sgl_list, psb,
3285 struct lpfc_scsi_buf, list);
3287 pci_pool_free(phba->lpfc_scsi_dma_buf_pool,
3288 psb->data, psb->dma_handle);
3292 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3293 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3294 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3297 /* update xris associated to remaining allocated scsi buffers */
3300 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3301 lxri = lpfc_sli4_next_xritag(phba);
3302 if (lxri == NO_XRI) {
3303 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3304 "2560 Failed to allocate xri for "
3309 psb->cur_iocbq.sli4_lxritag = lxri;
3310 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3312 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3313 spin_lock(&phba->scsi_buf_list_put_lock);
3314 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3315 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3316 spin_unlock(&phba->scsi_buf_list_put_lock);
3317 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3322 lpfc_free_els_sgl_list(phba);
3323 lpfc_scsi_free(phba);
3328 * lpfc_create_port - Create an FC port
3329 * @phba: pointer to lpfc hba data structure.
3330 * @instance: a unique integer ID to this FC port.
3331 * @dev: pointer to the device data structure.
3333 * This routine creates a FC port for the upper layer protocol. The FC port
3334 * can be created on top of either a physical port or a virtual port provided
3335 * by the HBA. This routine also allocates a SCSI host data structure (shost)
3336 * and associates the FC port created before adding the shost into the SCSI
3340 * @vport - pointer to the virtual N_Port data structure.
3341 * NULL - port create failed.
3344 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3346 struct lpfc_vport *vport;
3347 struct Scsi_Host *shost;
3350 if (dev != &phba->pcidev->dev) {
3351 shost = scsi_host_alloc(&lpfc_vport_template,
3352 sizeof(struct lpfc_vport));
3354 if (phba->sli_rev == LPFC_SLI_REV4)
3355 shost = scsi_host_alloc(&lpfc_template,
3356 sizeof(struct lpfc_vport));
3358 shost = scsi_host_alloc(&lpfc_template_s3,
3359 sizeof(struct lpfc_vport));
3364 vport = (struct lpfc_vport *) shost->hostdata;
3366 vport->load_flag |= FC_LOADING;
3367 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3368 vport->fc_rscn_flush = 0;
3370 lpfc_get_vport_cfgparam(vport);
3371 shost->unique_id = instance;
3372 shost->max_id = LPFC_MAX_TARGET;
3373 shost->max_lun = vport->cfg_max_luns;
3374 shost->this_id = -1;
3375 shost->max_cmd_len = 16;
3376 shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3377 if (phba->sli_rev == LPFC_SLI_REV4) {
3378 shost->dma_boundary =
3379 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3380 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3384 * Set initial can_queue value since 0 is no longer supported and
3385 * scsi_add_host will fail. This will be adjusted later based on the
3386 * max xri value determined in hba setup.
3388 shost->can_queue = phba->cfg_hba_queue_depth - 10;
3389 if (dev != &phba->pcidev->dev) {
3390 shost->transportt = lpfc_vport_transport_template;
3391 vport->port_type = LPFC_NPIV_PORT;
3393 shost->transportt = lpfc_transport_template;
3394 vport->port_type = LPFC_PHYSICAL_PORT;
3397 /* Initialize all internally managed lists. */
3398 INIT_LIST_HEAD(&vport->fc_nodes);
3399 INIT_LIST_HEAD(&vport->rcv_buffer_list);
3400 spin_lock_init(&vport->work_port_lock);
3402 init_timer(&vport->fc_disctmo);
3403 vport->fc_disctmo.function = lpfc_disc_timeout;
3404 vport->fc_disctmo.data = (unsigned long)vport;
3406 init_timer(&vport->els_tmofunc);
3407 vport->els_tmofunc.function = lpfc_els_timeout;
3408 vport->els_tmofunc.data = (unsigned long)vport;
3410 init_timer(&vport->delayed_disc_tmo);
3411 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3412 vport->delayed_disc_tmo.data = (unsigned long)vport;
3414 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3418 spin_lock_irq(&phba->hbalock);
3419 list_add_tail(&vport->listentry, &phba->port_list);
3420 spin_unlock_irq(&phba->hbalock);
3424 scsi_host_put(shost);
3430 * destroy_port - destroy an FC port
3431 * @vport: pointer to an lpfc virtual N_Port data structure.
3433 * This routine destroys a FC port from the upper layer protocol. All the
3434 * resources associated with the port are released.
3437 destroy_port(struct lpfc_vport *vport)
3439 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3440 struct lpfc_hba *phba = vport->phba;
3442 lpfc_debugfs_terminate(vport);
3443 fc_remove_host(shost);
3444 scsi_remove_host(shost);
3446 spin_lock_irq(&phba->hbalock);
3447 list_del_init(&vport->listentry);
3448 spin_unlock_irq(&phba->hbalock);
3450 lpfc_cleanup(vport);
3455 * lpfc_get_instance - Get a unique integer ID
3457 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3458 * uses the kernel idr facility to perform the task.
3461 * instance - a unique integer ID allocated as the new instance.
3462 * -1 - lpfc get instance failed.
3465 lpfc_get_instance(void)
3469 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3470 return ret < 0 ? -1 : ret;
3474 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3475 * @shost: pointer to SCSI host data structure.
3476 * @time: elapsed time of the scan in jiffies.
3478 * This routine is called by the SCSI layer with a SCSI host to determine
3479 * whether the scan host is finished.
3481 * Note: there is no scan_start function as adapter initialization will have
3482 * asynchronously kicked off the link initialization.
3485 * 0 - SCSI host scan is not over yet.
3486 * 1 - SCSI host scan is over.
3488 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3490 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3491 struct lpfc_hba *phba = vport->phba;
3494 spin_lock_irq(shost->host_lock);
3496 if (vport->load_flag & FC_UNLOADING) {
3500 if (time >= msecs_to_jiffies(30 * 1000)) {
3501 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3502 "0461 Scanning longer than 30 "
3503 "seconds. Continuing initialization\n");
3507 if (time >= msecs_to_jiffies(15 * 1000) &&
3508 phba->link_state <= LPFC_LINK_DOWN) {
3509 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3510 "0465 Link down longer than 15 "
3511 "seconds. Continuing initialization\n");
3516 if (vport->port_state != LPFC_VPORT_READY)
3518 if (vport->num_disc_nodes || vport->fc_prli_sent)
3520 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3522 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3528 spin_unlock_irq(shost->host_lock);
3533 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3534 * @shost: pointer to SCSI host data structure.
3536 * This routine initializes a given SCSI host attributes on a FC port. The
3537 * SCSI host can be either on top of a physical port or a virtual port.
3539 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3541 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3542 struct lpfc_hba *phba = vport->phba;
3544 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
3547 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3548 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3549 fc_host_supported_classes(shost) = FC_COS_CLASS3;
3551 memset(fc_host_supported_fc4s(shost), 0,
3552 sizeof(fc_host_supported_fc4s(shost)));
3553 fc_host_supported_fc4s(shost)[2] = 1;
3554 fc_host_supported_fc4s(shost)[7] = 1;
3556 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3557 sizeof fc_host_symbolic_name(shost));
3559 fc_host_supported_speeds(shost) = 0;
3560 if (phba->lmt & LMT_32Gb)
3561 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
3562 if (phba->lmt & LMT_16Gb)
3563 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3564 if (phba->lmt & LMT_10Gb)
3565 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3566 if (phba->lmt & LMT_8Gb)
3567 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3568 if (phba->lmt & LMT_4Gb)
3569 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3570 if (phba->lmt & LMT_2Gb)
3571 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3572 if (phba->lmt & LMT_1Gb)
3573 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3575 fc_host_maxframe_size(shost) =
3576 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3577 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3579 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3581 /* This value is also unchanging */
3582 memset(fc_host_active_fc4s(shost), 0,
3583 sizeof(fc_host_active_fc4s(shost)));
3584 fc_host_active_fc4s(shost)[2] = 1;
3585 fc_host_active_fc4s(shost)[7] = 1;
3587 fc_host_max_npiv_vports(shost) = phba->max_vpi;
3588 spin_lock_irq(shost->host_lock);
3589 vport->load_flag &= ~FC_LOADING;
3590 spin_unlock_irq(shost->host_lock);
3594 * lpfc_stop_port_s3 - Stop SLI3 device port
3595 * @phba: pointer to lpfc hba data structure.
3597 * This routine is invoked to stop an SLI3 device port, it stops the device
3598 * from generating interrupts and stops the device driver's timers for the
3602 lpfc_stop_port_s3(struct lpfc_hba *phba)
3604 /* Clear all interrupt enable conditions */
3605 writel(0, phba->HCregaddr);
3606 readl(phba->HCregaddr); /* flush */
3607 /* Clear all pending interrupts */
3608 writel(0xffffffff, phba->HAregaddr);
3609 readl(phba->HAregaddr); /* flush */
3611 /* Reset some HBA SLI setup states */
3612 lpfc_stop_hba_timers(phba);
3613 phba->pport->work_port_events = 0;
3617 * lpfc_stop_port_s4 - Stop SLI4 device port
3618 * @phba: pointer to lpfc hba data structure.
3620 * This routine is invoked to stop an SLI4 device port, it stops the device
3621 * from generating interrupts and stops the device driver's timers for the
3625 lpfc_stop_port_s4(struct lpfc_hba *phba)
3627 /* Reset some HBA SLI4 setup states */
3628 lpfc_stop_hba_timers(phba);
3629 phba->pport->work_port_events = 0;
3630 phba->sli4_hba.intr_enable = 0;
3634 * lpfc_stop_port - Wrapper function for stopping hba port
3635 * @phba: Pointer to HBA context object.
3637 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3638 * the API jump table function pointer from the lpfc_hba struct.
3641 lpfc_stop_port(struct lpfc_hba *phba)
3643 phba->lpfc_stop_port(phba);
3647 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3648 * @phba: Pointer to hba for which this call is being executed.
3650 * This routine starts the timer waiting for the FCF rediscovery to complete.
3653 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3655 unsigned long fcf_redisc_wait_tmo =
3656 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3657 /* Start fcf rediscovery wait period timer */
3658 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3659 spin_lock_irq(&phba->hbalock);
3660 /* Allow action to new fcf asynchronous event */
3661 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3662 /* Mark the FCF rediscovery pending state */
3663 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3664 spin_unlock_irq(&phba->hbalock);
3668 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3669 * @ptr: Map to lpfc_hba data structure pointer.
3671 * This routine is invoked when waiting for FCF table rediscover has been
3672 * timed out. If new FCF record(s) has (have) been discovered during the
3673 * wait period, a new FCF event shall be added to the FCOE async event
3674 * list, and then worker thread shall be waked up for processing from the
3675 * worker thread context.
3678 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3680 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3682 /* Don't send FCF rediscovery event if timer cancelled */
3683 spin_lock_irq(&phba->hbalock);
3684 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3685 spin_unlock_irq(&phba->hbalock);
3688 /* Clear FCF rediscovery timer pending flag */
3689 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3690 /* FCF rediscovery event to worker thread */
3691 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3692 spin_unlock_irq(&phba->hbalock);
3693 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3694 "2776 FCF rediscover quiescent timer expired\n");
3695 /* wake up worker thread */
3696 lpfc_worker_wake_up(phba);
3700 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3701 * @phba: pointer to lpfc hba data structure.
3702 * @acqe_link: pointer to the async link completion queue entry.
3704 * This routine is to parse the SLI4 link-attention link fault code and
3705 * translate it into the base driver's read link attention mailbox command
3708 * Return: Link-attention status in terms of base driver's coding.
3711 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3712 struct lpfc_acqe_link *acqe_link)
3714 uint16_t latt_fault;
3716 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3717 case LPFC_ASYNC_LINK_FAULT_NONE:
3718 case LPFC_ASYNC_LINK_FAULT_LOCAL:
3719 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3723 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3724 "0398 Invalid link fault code: x%x\n",
3725 bf_get(lpfc_acqe_link_fault, acqe_link));
3726 latt_fault = MBXERR_ERROR;
3733 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3734 * @phba: pointer to lpfc hba data structure.
3735 * @acqe_link: pointer to the async link completion queue entry.
3737 * This routine is to parse the SLI4 link attention type and translate it
3738 * into the base driver's link attention type coding.
3740 * Return: Link attention type in terms of base driver's coding.
3743 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3744 struct lpfc_acqe_link *acqe_link)
3748 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3749 case LPFC_ASYNC_LINK_STATUS_DOWN:
3750 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3751 att_type = LPFC_ATT_LINK_DOWN;
3753 case LPFC_ASYNC_LINK_STATUS_UP:
3754 /* Ignore physical link up events - wait for logical link up */
3755 att_type = LPFC_ATT_RESERVED;
3757 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3758 att_type = LPFC_ATT_LINK_UP;
3761 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3762 "0399 Invalid link attention type: x%x\n",
3763 bf_get(lpfc_acqe_link_status, acqe_link));
3764 att_type = LPFC_ATT_RESERVED;
3771 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3772 * @phba: pointer to lpfc hba data structure.
3774 * This routine is to get an SLI3 FC port's link speed in Mbps.
3776 * Return: link speed in terms of Mbps.
3779 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3781 uint32_t link_speed;
3783 if (!lpfc_is_link_up(phba))
3786 if (phba->sli_rev <= LPFC_SLI_REV3) {
3787 switch (phba->fc_linkspeed) {
3788 case LPFC_LINK_SPEED_1GHZ:
3791 case LPFC_LINK_SPEED_2GHZ:
3794 case LPFC_LINK_SPEED_4GHZ:
3797 case LPFC_LINK_SPEED_8GHZ:
3800 case LPFC_LINK_SPEED_10GHZ:
3803 case LPFC_LINK_SPEED_16GHZ:
3810 if (phba->sli4_hba.link_state.logical_speed)
3812 phba->sli4_hba.link_state.logical_speed;
3814 link_speed = phba->sli4_hba.link_state.speed;
3820 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3821 * @phba: pointer to lpfc hba data structure.
3822 * @evt_code: asynchronous event code.
3823 * @speed_code: asynchronous event link speed code.
3825 * This routine is to parse the giving SLI4 async event link speed code into
3826 * value of Mbps for the link speed.
3828 * Return: link speed in terms of Mbps.
3831 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3834 uint32_t port_speed;
3837 case LPFC_TRAILER_CODE_LINK:
3838 switch (speed_code) {
3839 case LPFC_ASYNC_LINK_SPEED_ZERO:
3842 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3845 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3848 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3851 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3854 case LPFC_ASYNC_LINK_SPEED_20GBPS:
3857 case LPFC_ASYNC_LINK_SPEED_25GBPS:
3860 case LPFC_ASYNC_LINK_SPEED_40GBPS:
3867 case LPFC_TRAILER_CODE_FC:
3868 switch (speed_code) {
3869 case LPFC_FC_LA_SPEED_UNKNOWN:
3872 case LPFC_FC_LA_SPEED_1G:
3875 case LPFC_FC_LA_SPEED_2G:
3878 case LPFC_FC_LA_SPEED_4G:
3881 case LPFC_FC_LA_SPEED_8G:
3884 case LPFC_FC_LA_SPEED_10G:
3887 case LPFC_FC_LA_SPEED_16G:
3890 case LPFC_FC_LA_SPEED_32G:
3904 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3905 * @phba: pointer to lpfc hba data structure.
3906 * @acqe_link: pointer to the async link completion queue entry.
3908 * This routine is to handle the SLI4 asynchronous FCoE link event.
3911 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3912 struct lpfc_acqe_link *acqe_link)
3914 struct lpfc_dmabuf *mp;
3917 struct lpfc_mbx_read_top *la;
3921 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3922 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3924 phba->fcoe_eventtag = acqe_link->event_tag;
3925 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3927 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3928 "0395 The mboxq allocation failed\n");
3931 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3933 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3934 "0396 The lpfc_dmabuf allocation failed\n");
3937 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3939 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3940 "0397 The mbuf allocation failed\n");
3941 goto out_free_dmabuf;
3944 /* Cleanup any outstanding ELS commands */
3945 lpfc_els_flush_all_cmd(phba);
3947 /* Block ELS IOCBs until we have done process link event */
3948 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3950 /* Update link event statistics */
3951 phba->sli.slistat.link_event++;
3953 /* Create lpfc_handle_latt mailbox command from link ACQE */
3954 lpfc_read_topology(phba, pmb, mp);
3955 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3956 pmb->vport = phba->pport;
3958 /* Keep the link status for extra SLI4 state machine reference */
3959 phba->sli4_hba.link_state.speed =
3960 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3961 bf_get(lpfc_acqe_link_speed, acqe_link));
3962 phba->sli4_hba.link_state.duplex =
3963 bf_get(lpfc_acqe_link_duplex, acqe_link);
3964 phba->sli4_hba.link_state.status =
3965 bf_get(lpfc_acqe_link_status, acqe_link);
3966 phba->sli4_hba.link_state.type =
3967 bf_get(lpfc_acqe_link_type, acqe_link);
3968 phba->sli4_hba.link_state.number =
3969 bf_get(lpfc_acqe_link_number, acqe_link);
3970 phba->sli4_hba.link_state.fault =
3971 bf_get(lpfc_acqe_link_fault, acqe_link);
3972 phba->sli4_hba.link_state.logical_speed =
3973 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3975 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3976 "2900 Async FC/FCoE Link event - Speed:%dGBit "
3977 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3978 "Logical speed:%dMbps Fault:%d\n",
3979 phba->sli4_hba.link_state.speed,
3980 phba->sli4_hba.link_state.topology,
3981 phba->sli4_hba.link_state.status,
3982 phba->sli4_hba.link_state.type,
3983 phba->sli4_hba.link_state.number,
3984 phba->sli4_hba.link_state.logical_speed,
3985 phba->sli4_hba.link_state.fault);
3987 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3988 * topology info. Note: Optional for non FC-AL ports.
3990 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3991 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3992 if (rc == MBX_NOT_FINISHED)
3993 goto out_free_dmabuf;
3997 * For FCoE Mode: fill in all the topology information we need and call
3998 * the READ_TOPOLOGY completion routine to continue without actually
3999 * sending the READ_TOPOLOGY mailbox command to the port.
4001 /* Parse and translate status field */
4003 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
4005 /* Parse and translate link attention fields */
4006 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4007 la->eventTag = acqe_link->event_tag;
4008 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4009 bf_set(lpfc_mbx_read_top_link_spd, la,
4010 (bf_get(lpfc_acqe_link_speed, acqe_link)));
4012 /* Fake the the following irrelvant fields */
4013 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4014 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4015 bf_set(lpfc_mbx_read_top_il, la, 0);
4016 bf_set(lpfc_mbx_read_top_pb, la, 0);
4017 bf_set(lpfc_mbx_read_top_fa, la, 0);
4018 bf_set(lpfc_mbx_read_top_mm, la, 0);
4020 /* Invoke the lpfc_handle_latt mailbox command callback function */
4021 lpfc_mbx_cmpl_read_topology(phba, pmb);
4028 mempool_free(pmb, phba->mbox_mem_pool);
4032 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
4033 * @phba: pointer to lpfc hba data structure.
4034 * @acqe_fc: pointer to the async fc completion queue entry.
4036 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
4037 * that the event was received and then issue a read_topology mailbox command so
4038 * that the rest of the driver will treat it the same as SLI3.
4041 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
4043 struct lpfc_dmabuf *mp;
4046 struct lpfc_mbx_read_top *la;
4049 if (bf_get(lpfc_trailer_type, acqe_fc) !=
4050 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
4051 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4052 "2895 Non FC link Event detected.(%d)\n",
4053 bf_get(lpfc_trailer_type, acqe_fc));
4056 /* Keep the link status for extra SLI4 state machine reference */
4057 phba->sli4_hba.link_state.speed =
4058 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4059 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4060 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4061 phba->sli4_hba.link_state.topology =
4062 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4063 phba->sli4_hba.link_state.status =
4064 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4065 phba->sli4_hba.link_state.type =
4066 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4067 phba->sli4_hba.link_state.number =
4068 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4069 phba->sli4_hba.link_state.fault =
4070 bf_get(lpfc_acqe_link_fault, acqe_fc);
4071 phba->sli4_hba.link_state.logical_speed =
4072 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4073 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4074 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4075 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4076 "%dMbps Fault:%d\n",
4077 phba->sli4_hba.link_state.speed,
4078 phba->sli4_hba.link_state.topology,
4079 phba->sli4_hba.link_state.status,
4080 phba->sli4_hba.link_state.type,
4081 phba->sli4_hba.link_state.number,
4082 phba->sli4_hba.link_state.logical_speed,
4083 phba->sli4_hba.link_state.fault);
4084 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4086 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4087 "2897 The mboxq allocation failed\n");
4090 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4092 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4093 "2898 The lpfc_dmabuf allocation failed\n");
4096 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4098 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4099 "2899 The mbuf allocation failed\n");
4100 goto out_free_dmabuf;
4103 /* Cleanup any outstanding ELS commands */
4104 lpfc_els_flush_all_cmd(phba);
4106 /* Block ELS IOCBs until we have done process link event */
4107 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
4109 /* Update link event statistics */
4110 phba->sli.slistat.link_event++;
4112 /* Create lpfc_handle_latt mailbox command from link ACQE */
4113 lpfc_read_topology(phba, pmb, mp);
4114 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4115 pmb->vport = phba->pport;
4117 if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
4118 /* Parse and translate status field */
4120 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba,
4123 /* Parse and translate link attention fields */
4124 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
4125 la->eventTag = acqe_fc->event_tag;
4126 bf_set(lpfc_mbx_read_top_att_type, la,
4127 LPFC_FC_LA_TYPE_LINK_DOWN);
4129 /* Invoke the mailbox command callback function */
4130 lpfc_mbx_cmpl_read_topology(phba, pmb);
4135 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4136 if (rc == MBX_NOT_FINISHED)
4137 goto out_free_dmabuf;
4143 mempool_free(pmb, phba->mbox_mem_pool);
4147 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4148 * @phba: pointer to lpfc hba data structure.
4149 * @acqe_fc: pointer to the async SLI completion queue entry.
4151 * This routine is to handle the SLI4 asynchronous SLI events.
4154 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4160 uint8_t operational = 0;
4161 struct temp_event temp_event_data;
4162 struct lpfc_acqe_misconfigured_event *misconfigured;
4163 struct Scsi_Host *shost;
4165 evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4167 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4168 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4169 "x%08x SLI Event Type:%d\n",
4170 acqe_sli->event_data1, acqe_sli->event_data2,
4173 port_name = phba->Port[0];
4174 if (port_name == 0x00)
4175 port_name = '?'; /* get port name is empty */
4178 case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4179 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4180 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4181 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4183 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4184 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4185 acqe_sli->event_data1, port_name);
4187 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
4188 shost = lpfc_shost_from_vport(phba->pport);
4189 fc_host_post_vendor_event(shost, fc_get_event_number(),
4190 sizeof(temp_event_data),
4191 (char *)&temp_event_data,
4192 SCSI_NL_VID_TYPE_PCI
4193 | PCI_VENDOR_ID_EMULEX);
4195 case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4196 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4197 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4198 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4200 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4201 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4202 acqe_sli->event_data1, port_name);
4204 shost = lpfc_shost_from_vport(phba->pport);
4205 fc_host_post_vendor_event(shost, fc_get_event_number(),
4206 sizeof(temp_event_data),
4207 (char *)&temp_event_data,
4208 SCSI_NL_VID_TYPE_PCI
4209 | PCI_VENDOR_ID_EMULEX);
4211 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4212 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4213 &acqe_sli->event_data1;
4215 /* fetch the status for this port */
4216 switch (phba->sli4_hba.lnk_info.lnk_no) {
4217 case LPFC_LINK_NUMBER_0:
4218 status = bf_get(lpfc_sli_misconfigured_port0_state,
4219 &misconfigured->theEvent);
4220 operational = bf_get(lpfc_sli_misconfigured_port0_op,
4221 &misconfigured->theEvent);
4223 case LPFC_LINK_NUMBER_1:
4224 status = bf_get(lpfc_sli_misconfigured_port1_state,
4225 &misconfigured->theEvent);
4226 operational = bf_get(lpfc_sli_misconfigured_port1_op,
4227 &misconfigured->theEvent);
4229 case LPFC_LINK_NUMBER_2:
4230 status = bf_get(lpfc_sli_misconfigured_port2_state,
4231 &misconfigured->theEvent);
4232 operational = bf_get(lpfc_sli_misconfigured_port2_op,
4233 &misconfigured->theEvent);
4235 case LPFC_LINK_NUMBER_3:
4236 status = bf_get(lpfc_sli_misconfigured_port3_state,
4237 &misconfigured->theEvent);
4238 operational = bf_get(lpfc_sli_misconfigured_port3_op,
4239 &misconfigured->theEvent);
4242 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4244 "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
4245 "event: Invalid link %d",
4246 phba->sli4_hba.lnk_info.lnk_no);
4250 /* Skip if optic state unchanged */
4251 if (phba->sli4_hba.lnk_info.optic_state == status)
4255 case LPFC_SLI_EVENT_STATUS_VALID:
4256 sprintf(message, "Physical Link is functional");
4258 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4259 sprintf(message, "Optics faulted/incorrectly "
4260 "installed/not installed - Reseat optics, "
4261 "if issue not resolved, replace.");
4263 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4265 "Optics of two types installed - Remove one "
4266 "optic or install matching pair of optics.");
4268 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4269 sprintf(message, "Incompatible optics - Replace with "
4270 "compatible optics for card to function.");
4272 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
4273 sprintf(message, "Unqualified optics - Replace with "
4274 "Avago optics for Warranty and Technical "
4275 "Support - Link is%s operational",
4276 (operational) ? "" : " not");
4278 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
4279 sprintf(message, "Uncertified optics - Replace with "
4280 "Avago-certified optics to enable link "
4281 "operation - Link is%s operational",
4282 (operational) ? "" : " not");
4285 /* firmware is reporting a status we don't know about */
4286 sprintf(message, "Unknown event status x%02x", status);
4289 phba->sli4_hba.lnk_info.optic_state = status;
4290 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4291 "3176 Port Name %c %s\n", port_name, message);
4293 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4294 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4295 "3192 Remote DPort Test Initiated - "
4296 "Event Data1:x%08x Event Data2: x%08x\n",
4297 acqe_sli->event_data1, acqe_sli->event_data2);
4300 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4301 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4302 "x%08x SLI Event Type:%d\n",
4303 acqe_sli->event_data1, acqe_sli->event_data2,
4310 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4311 * @vport: pointer to vport data structure.
4313 * This routine is to perform Clear Virtual Link (CVL) on a vport in
4314 * response to a CVL event.
4316 * Return the pointer to the ndlp with the vport if successful, otherwise
4319 static struct lpfc_nodelist *
4320 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4322 struct lpfc_nodelist *ndlp;
4323 struct Scsi_Host *shost;
4324 struct lpfc_hba *phba;
4331 ndlp = lpfc_findnode_did(vport, Fabric_DID);
4333 /* Cannot find existing Fabric ndlp, so allocate a new one */
4334 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4337 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4338 /* Set the node type */
4339 ndlp->nlp_type |= NLP_FABRIC;
4340 /* Put ndlp onto node list */
4341 lpfc_enqueue_node(vport, ndlp);
4342 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4343 /* re-setup ndlp without removing from node list */
4344 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4348 if ((phba->pport->port_state < LPFC_FLOGI) &&
4349 (phba->pport->port_state != LPFC_VPORT_FAILED))
4351 /* If virtual link is not yet instantiated ignore CVL */
4352 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4353 && (vport->port_state != LPFC_VPORT_FAILED))
4355 shost = lpfc_shost_from_vport(vport);
4358 lpfc_linkdown_port(vport);
4359 lpfc_cleanup_pending_mbox(vport);
4360 spin_lock_irq(shost->host_lock);
4361 vport->fc_flag |= FC_VPORT_CVL_RCVD;
4362 spin_unlock_irq(shost->host_lock);
4368 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4369 * @vport: pointer to lpfc hba data structure.
4371 * This routine is to perform Clear Virtual Link (CVL) on all vports in
4372 * response to a FCF dead event.
4375 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4377 struct lpfc_vport **vports;
4380 vports = lpfc_create_vport_work_array(phba);
4382 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4383 lpfc_sli4_perform_vport_cvl(vports[i]);
4384 lpfc_destroy_vport_work_array(phba, vports);
4388 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4389 * @phba: pointer to lpfc hba data structure.
4390 * @acqe_link: pointer to the async fcoe completion queue entry.
4392 * This routine is to handle the SLI4 asynchronous fcoe event.
4395 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4396 struct lpfc_acqe_fip *acqe_fip)
4398 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4400 struct lpfc_vport *vport;
4401 struct lpfc_nodelist *ndlp;
4402 struct Scsi_Host *shost;
4403 int active_vlink_present;
4404 struct lpfc_vport **vports;
4407 phba->fc_eventTag = acqe_fip->event_tag;
4408 phba->fcoe_eventtag = acqe_fip->event_tag;
4409 switch (event_type) {
4410 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4411 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4412 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4413 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4415 "2546 New FCF event, evt_tag:x%x, "
4417 acqe_fip->event_tag,
4420 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4422 "2788 FCF param modified event, "
4423 "evt_tag:x%x, index:x%x\n",
4424 acqe_fip->event_tag,
4426 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4428 * During period of FCF discovery, read the FCF
4429 * table record indexed by the event to update
4430 * FCF roundrobin failover eligible FCF bmask.
4432 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4434 "2779 Read FCF (x%x) for updating "
4435 "roundrobin FCF failover bmask\n",
4437 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4440 /* If the FCF discovery is in progress, do nothing. */
4441 spin_lock_irq(&phba->hbalock);
4442 if (phba->hba_flag & FCF_TS_INPROG) {
4443 spin_unlock_irq(&phba->hbalock);
4446 /* If fast FCF failover rescan event is pending, do nothing */
4447 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4448 spin_unlock_irq(&phba->hbalock);
4452 /* If the FCF has been in discovered state, do nothing. */
4453 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4454 spin_unlock_irq(&phba->hbalock);
4457 spin_unlock_irq(&phba->hbalock);
4459 /* Otherwise, scan the entire FCF table and re-discover SAN */
4460 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4461 "2770 Start FCF table scan per async FCF "
4462 "event, evt_tag:x%x, index:x%x\n",
4463 acqe_fip->event_tag, acqe_fip->index);
4464 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4465 LPFC_FCOE_FCF_GET_FIRST);
4467 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4468 "2547 Issue FCF scan read FCF mailbox "
4469 "command failed (x%x)\n", rc);
4472 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4473 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4474 "2548 FCF Table full count 0x%x tag 0x%x\n",
4475 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4476 acqe_fip->event_tag);
4479 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4480 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4481 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4482 "2549 FCF (x%x) disconnected from network, "
4483 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4485 * If we are in the middle of FCF failover process, clear
4486 * the corresponding FCF bit in the roundrobin bitmap.
4488 spin_lock_irq(&phba->hbalock);
4489 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
4490 (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
4491 spin_unlock_irq(&phba->hbalock);
4492 /* Update FLOGI FCF failover eligible FCF bmask */
4493 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4496 spin_unlock_irq(&phba->hbalock);
4498 /* If the event is not for currently used fcf do nothing */
4499 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4503 * Otherwise, request the port to rediscover the entire FCF
4504 * table for a fast recovery from case that the current FCF
4505 * is no longer valid as we are not in the middle of FCF
4506 * failover process already.
4508 spin_lock_irq(&phba->hbalock);
4509 /* Mark the fast failover process in progress */
4510 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4511 spin_unlock_irq(&phba->hbalock);
4513 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4514 "2771 Start FCF fast failover process due to "
4515 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4516 "\n", acqe_fip->event_tag, acqe_fip->index);
4517 rc = lpfc_sli4_redisc_fcf_table(phba);
4519 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4521 "2772 Issue FCF rediscover mabilbox "
4522 "command failed, fail through to FCF "
4524 spin_lock_irq(&phba->hbalock);
4525 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4526 spin_unlock_irq(&phba->hbalock);
4528 * Last resort will fail over by treating this
4529 * as a link down to FCF registration.
4531 lpfc_sli4_fcf_dead_failthrough(phba);
4533 /* Reset FCF roundrobin bmask for new discovery */
4534 lpfc_sli4_clear_fcf_rr_bmask(phba);
4536 * Handling fast FCF failover to a DEAD FCF event is
4537 * considered equalivant to receiving CVL to all vports.
4539 lpfc_sli4_perform_all_vport_cvl(phba);
4542 case LPFC_FIP_EVENT_TYPE_CVL:
4543 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4544 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4545 "2718 Clear Virtual Link Received for VPI 0x%x"
4546 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4548 vport = lpfc_find_vport_by_vpid(phba,
4550 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4553 active_vlink_present = 0;
4555 vports = lpfc_create_vport_work_array(phba);
4557 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4559 if ((!(vports[i]->fc_flag &
4560 FC_VPORT_CVL_RCVD)) &&
4561 (vports[i]->port_state > LPFC_FDISC)) {
4562 active_vlink_present = 1;
4566 lpfc_destroy_vport_work_array(phba, vports);
4570 * Don't re-instantiate if vport is marked for deletion.
4571 * If we are here first then vport_delete is going to wait
4572 * for discovery to complete.
4574 if (!(vport->load_flag & FC_UNLOADING) &&
4575 active_vlink_present) {
4577 * If there are other active VLinks present,
4578 * re-instantiate the Vlink using FDISC.
4580 mod_timer(&ndlp->nlp_delayfunc,
4581 jiffies + msecs_to_jiffies(1000));
4582 shost = lpfc_shost_from_vport(vport);
4583 spin_lock_irq(shost->host_lock);
4584 ndlp->nlp_flag |= NLP_DELAY_TMO;
4585 spin_unlock_irq(shost->host_lock);
4586 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4587 vport->port_state = LPFC_FDISC;
4590 * Otherwise, we request port to rediscover
4591 * the entire FCF table for a fast recovery
4592 * from possible case that the current FCF
4593 * is no longer valid if we are not already
4594 * in the FCF failover process.
4596 spin_lock_irq(&phba->hbalock);
4597 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4598 spin_unlock_irq(&phba->hbalock);
4601 /* Mark the fast failover process in progress */
4602 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4603 spin_unlock_irq(&phba->hbalock);
4604 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4606 "2773 Start FCF failover per CVL, "
4607 "evt_tag:x%x\n", acqe_fip->event_tag);
4608 rc = lpfc_sli4_redisc_fcf_table(phba);
4610 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4612 "2774 Issue FCF rediscover "
4613 "mabilbox command failed, "
4614 "through to CVL event\n");
4615 spin_lock_irq(&phba->hbalock);
4616 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4617 spin_unlock_irq(&phba->hbalock);
4619 * Last resort will be re-try on the
4620 * the current registered FCF entry.
4622 lpfc_retry_pport_discovery(phba);
4625 * Reset FCF roundrobin bmask for new
4628 lpfc_sli4_clear_fcf_rr_bmask(phba);
4632 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4633 "0288 Unknown FCoE event type 0x%x event tag "
4634 "0x%x\n", event_type, acqe_fip->event_tag);
4640 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4641 * @phba: pointer to lpfc hba data structure.
4642 * @acqe_link: pointer to the async dcbx completion queue entry.
4644 * This routine is to handle the SLI4 asynchronous dcbx event.
4647 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4648 struct lpfc_acqe_dcbx *acqe_dcbx)
4650 phba->fc_eventTag = acqe_dcbx->event_tag;
4651 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4652 "0290 The SLI4 DCBX asynchronous event is not "
4657 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4658 * @phba: pointer to lpfc hba data structure.
4659 * @acqe_link: pointer to the async grp5 completion queue entry.
4661 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4662 * is an asynchronous notified of a logical link speed change. The Port
4663 * reports the logical link speed in units of 10Mbps.
4666 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4667 struct lpfc_acqe_grp5 *acqe_grp5)
4669 uint16_t prev_ll_spd;
4671 phba->fc_eventTag = acqe_grp5->event_tag;
4672 phba->fcoe_eventtag = acqe_grp5->event_tag;
4673 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4674 phba->sli4_hba.link_state.logical_speed =
4675 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4676 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4677 "2789 GRP5 Async Event: Updating logical link speed "
4678 "from %dMbps to %dMbps\n", prev_ll_spd,
4679 phba->sli4_hba.link_state.logical_speed);
4683 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4684 * @phba: pointer to lpfc hba data structure.
4686 * This routine is invoked by the worker thread to process all the pending
4687 * SLI4 asynchronous events.
4689 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4691 struct lpfc_cq_event *cq_event;
4693 /* First, declare the async event has been handled */
4694 spin_lock_irq(&phba->hbalock);
4695 phba->hba_flag &= ~ASYNC_EVENT;
4696 spin_unlock_irq(&phba->hbalock);
4697 /* Now, handle all the async events */
4698 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4699 /* Get the first event from the head of the event queue */
4700 spin_lock_irq(&phba->hbalock);
4701 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4702 cq_event, struct lpfc_cq_event, list);
4703 spin_unlock_irq(&phba->hbalock);
4704 /* Process the asynchronous event */
4705 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4706 case LPFC_TRAILER_CODE_LINK:
4707 lpfc_sli4_async_link_evt(phba,
4708 &cq_event->cqe.acqe_link);
4710 case LPFC_TRAILER_CODE_FCOE:
4711 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4713 case LPFC_TRAILER_CODE_DCBX:
4714 lpfc_sli4_async_dcbx_evt(phba,
4715 &cq_event->cqe.acqe_dcbx);
4717 case LPFC_TRAILER_CODE_GRP5:
4718 lpfc_sli4_async_grp5_evt(phba,
4719 &cq_event->cqe.acqe_grp5);
4721 case LPFC_TRAILER_CODE_FC:
4722 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4724 case LPFC_TRAILER_CODE_SLI:
4725 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4728 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4729 "1804 Invalid asynchrous event code: "
4730 "x%x\n", bf_get(lpfc_trailer_code,
4731 &cq_event->cqe.mcqe_cmpl));
4734 /* Free the completion event processed to the free pool */
4735 lpfc_sli4_cq_event_release(phba, cq_event);
4740 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4741 * @phba: pointer to lpfc hba data structure.
4743 * This routine is invoked by the worker thread to process FCF table
4744 * rediscovery pending completion event.
4746 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4750 spin_lock_irq(&phba->hbalock);
4751 /* Clear FCF rediscovery timeout event */
4752 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4753 /* Clear driver fast failover FCF record flag */
4754 phba->fcf.failover_rec.flag = 0;
4755 /* Set state for FCF fast failover */
4756 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4757 spin_unlock_irq(&phba->hbalock);
4759 /* Scan FCF table from the first entry to re-discover SAN */
4760 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4761 "2777 Start post-quiescent FCF table scan\n");
4762 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4764 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4765 "2747 Issue FCF scan read FCF mailbox "
4766 "command failed 0x%x\n", rc);
4770 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4771 * @phba: pointer to lpfc hba data structure.
4772 * @dev_grp: The HBA PCI-Device group number.
4774 * This routine is invoked to set up the per HBA PCI-Device group function
4775 * API jump table entries.
4777 * Return: 0 if success, otherwise -ENODEV
4780 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4784 /* Set up lpfc PCI-device group */
4785 phba->pci_dev_grp = dev_grp;
4787 /* The LPFC_PCI_DEV_OC uses SLI4 */
4788 if (dev_grp == LPFC_PCI_DEV_OC)
4789 phba->sli_rev = LPFC_SLI_REV4;
4791 /* Set up device INIT API function jump table */
4792 rc = lpfc_init_api_table_setup(phba, dev_grp);
4795 /* Set up SCSI API function jump table */
4796 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4799 /* Set up SLI API function jump table */
4800 rc = lpfc_sli_api_table_setup(phba, dev_grp);
4803 /* Set up MBOX API function jump table */
4804 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4812 * lpfc_log_intr_mode - Log the active interrupt mode
4813 * @phba: pointer to lpfc hba data structure.
4814 * @intr_mode: active interrupt mode adopted.
4816 * This routine it invoked to log the currently used active interrupt mode
4819 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4821 switch (intr_mode) {
4823 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4824 "0470 Enable INTx interrupt mode.\n");
4827 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4828 "0481 Enabled MSI interrupt mode.\n");
4831 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4832 "0480 Enabled MSI-X interrupt mode.\n");
4835 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4836 "0482 Illegal interrupt mode.\n");
4843 * lpfc_enable_pci_dev - Enable a generic PCI device.
4844 * @phba: pointer to lpfc hba data structure.
4846 * This routine is invoked to enable the PCI device that is common to all
4851 * other values - error
4854 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4856 struct pci_dev *pdev;
4859 /* Obtain PCI device reference */
4863 pdev = phba->pcidev;
4864 /* Select PCI BARs */
4865 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4866 /* Enable PCI device */
4867 if (pci_enable_device_mem(pdev))
4869 /* Request PCI resource for the device */
4870 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4871 goto out_disable_device;
4872 /* Set up device as PCI master and save state for EEH */
4873 pci_set_master(pdev);
4874 pci_try_set_mwi(pdev);
4875 pci_save_state(pdev);
4877 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4878 if (pci_is_pcie(pdev))
4879 pdev->needs_freset = 1;
4884 pci_disable_device(pdev);
4886 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4887 "1401 Failed to enable pci device, bars:x%x\n", bars);
4892 * lpfc_disable_pci_dev - Disable a generic PCI device.
4893 * @phba: pointer to lpfc hba data structure.
4895 * This routine is invoked to disable the PCI device that is common to all
4899 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4901 struct pci_dev *pdev;
4904 /* Obtain PCI device reference */
4908 pdev = phba->pcidev;
4909 /* Select PCI BARs */
4910 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4911 /* Release PCI resource and disable PCI device */
4912 pci_release_selected_regions(pdev, bars);
4913 pci_disable_device(pdev);
4919 * lpfc_reset_hba - Reset a hba
4920 * @phba: pointer to lpfc hba data structure.
4922 * This routine is invoked to reset a hba device. It brings the HBA
4923 * offline, performs a board restart, and then brings the board back
4924 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4925 * on outstanding mailbox commands.
4928 lpfc_reset_hba(struct lpfc_hba *phba)
4930 /* If resets are disabled then set error state and return. */
4931 if (!phba->cfg_enable_hba_reset) {
4932 phba->link_state = LPFC_HBA_ERROR;
4935 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
4936 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4938 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
4940 lpfc_sli_brdrestart(phba);
4942 lpfc_unblock_mgmt_io(phba);
4946 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4947 * @phba: pointer to lpfc hba data structure.
4949 * This function enables the PCI SR-IOV virtual functions to a physical
4950 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4951 * enable the number of virtual functions to the physical function. As
4952 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4953 * API call does not considered as an error condition for most of the device.
4956 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4958 struct pci_dev *pdev = phba->pcidev;
4962 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4966 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4971 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4972 * @phba: pointer to lpfc hba data structure.
4973 * @nr_vfn: number of virtual functions to be enabled.
4975 * This function enables the PCI SR-IOV virtual functions to a physical
4976 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4977 * enable the number of virtual functions to the physical function. As
4978 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4979 * API call does not considered as an error condition for most of the device.
4982 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4984 struct pci_dev *pdev = phba->pcidev;
4985 uint16_t max_nr_vfn;
4988 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4989 if (nr_vfn > max_nr_vfn) {
4990 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4991 "3057 Requested vfs (%d) greater than "
4992 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4996 rc = pci_enable_sriov(pdev, nr_vfn);
4998 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4999 "2806 Failed to enable sriov on this device "
5000 "with vfn number nr_vf:%d, rc:%d\n",
5003 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5004 "2807 Successful enable sriov on this device "
5005 "with vfn number nr_vf:%d\n", nr_vfn);
5010 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
5011 * @phba: pointer to lpfc hba data structure.
5013 * This routine is invoked to set up the driver internal resources specific to
5014 * support the SLI-3 HBA device it attached to.
5018 * other values - error
5021 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
5023 struct lpfc_sli *psli;
5027 * Initialize timers used by driver
5030 /* Heartbeat timer */
5031 init_timer(&phba->hb_tmofunc);
5032 phba->hb_tmofunc.function = lpfc_hb_timeout;
5033 phba->hb_tmofunc.data = (unsigned long)phba;
5036 /* MBOX heartbeat timer */
5037 init_timer(&psli->mbox_tmo);
5038 psli->mbox_tmo.function = lpfc_mbox_timeout;
5039 psli->mbox_tmo.data = (unsigned long) phba;
5040 /* FCP polling mode timer */
5041 init_timer(&phba->fcp_poll_timer);
5042 phba->fcp_poll_timer.function = lpfc_poll_timeout;
5043 phba->fcp_poll_timer.data = (unsigned long) phba;
5044 /* Fabric block timer */
5045 init_timer(&phba->fabric_block_timer);
5046 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
5047 phba->fabric_block_timer.data = (unsigned long) phba;
5048 /* EA polling mode timer */
5049 init_timer(&phba->eratt_poll);
5050 phba->eratt_poll.function = lpfc_poll_eratt;
5051 phba->eratt_poll.data = (unsigned long) phba;
5053 /* Host attention work mask setup */
5054 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
5055 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
5057 /* Get all the module params for configuring this host */
5058 lpfc_get_cfgparam(phba);
5059 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
5060 phba->menlo_flag |= HBA_MENLO_SUPPORT;
5061 /* check for menlo minimum sg count */
5062 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
5063 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
5066 if (!phba->sli.ring)
5067 phba->sli.ring = kzalloc(LPFC_SLI3_MAX_RING *
5068 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5069 if (!phba->sli.ring)
5073 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5074 * used to create the sg_dma_buf_pool must be dynamically calculated.
5077 /* Initialize the host templates the configured values. */
5078 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5079 lpfc_template_s3.sg_tablesize = phba->cfg_sg_seg_cnt;
5081 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5082 if (phba->cfg_enable_bg) {
5084 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5085 * the FCP rsp, and a BDE for each. Sice we have no control
5086 * over how many protection data segments the SCSI Layer
5087 * will hand us (ie: there could be one for every block
5088 * in the IO), we just allocate enough BDEs to accomidate
5089 * our max amount and we need to limit lpfc_sg_seg_cnt to
5090 * minimize the risk of running out.
5092 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5093 sizeof(struct fcp_rsp) +
5094 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5096 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5097 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5099 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5100 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5103 * The scsi_buf for a regular I/O will hold the FCP cmnd,
5104 * the FCP rsp, a BDE for each, and a BDE for up to
5105 * cfg_sg_seg_cnt data segments.
5107 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5108 sizeof(struct fcp_rsp) +
5109 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5111 /* Total BDEs in BPL for scsi_sg_list */
5112 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5115 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5116 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5117 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5118 phba->cfg_total_seg_cnt);
5120 phba->max_vpi = LPFC_MAX_VPI;
5121 /* This will be set to correct value after config_port mbox */
5122 phba->max_vports = 0;
5125 * Initialize the SLI Layer to run with lpfc HBAs.
5127 lpfc_sli_setup(phba);
5128 lpfc_sli_queue_setup(phba);
5130 /* Allocate device driver memory */
5131 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5135 * Enable sr-iov virtual functions if supported and configured
5136 * through the module parameter.
5138 if (phba->cfg_sriov_nr_virtfn > 0) {
5139 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5140 phba->cfg_sriov_nr_virtfn);
5142 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5143 "2808 Requested number of SR-IOV "
5144 "virtual functions (%d) is not "
5146 phba->cfg_sriov_nr_virtfn);
5147 phba->cfg_sriov_nr_virtfn = 0;
5155 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5156 * @phba: pointer to lpfc hba data structure.
5158 * This routine is invoked to unset the driver internal resources set up
5159 * specific for supporting the SLI-3 HBA device it attached to.
5162 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5164 /* Free device driver memory allocated */
5165 lpfc_mem_free_all(phba);
5171 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5172 * @phba: pointer to lpfc hba data structure.
5174 * This routine is invoked to set up the driver internal resources specific to
5175 * support the SLI-4 HBA device it attached to.
5179 * other values - error
5182 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5184 struct lpfc_vector_map_info *cpup;
5185 struct lpfc_sli *psli;
5186 LPFC_MBOXQ_t *mboxq;
5187 int rc, i, hbq_count, max_buf_size;
5188 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5189 struct lpfc_mqe *mqe;
5191 int fof_vectors = 0;
5193 /* Get all the module params for configuring this host */
5194 lpfc_get_cfgparam(phba);
5196 /* Before proceed, wait for POST done and device ready */
5197 rc = lpfc_sli4_post_status_check(phba);
5202 * Initialize timers used by driver
5205 /* Heartbeat timer */
5206 init_timer(&phba->hb_tmofunc);
5207 phba->hb_tmofunc.function = lpfc_hb_timeout;
5208 phba->hb_tmofunc.data = (unsigned long)phba;
5209 init_timer(&phba->rrq_tmr);
5210 phba->rrq_tmr.function = lpfc_rrq_timeout;
5211 phba->rrq_tmr.data = (unsigned long)phba;
5214 /* MBOX heartbeat timer */
5215 init_timer(&psli->mbox_tmo);
5216 psli->mbox_tmo.function = lpfc_mbox_timeout;
5217 psli->mbox_tmo.data = (unsigned long) phba;
5218 /* Fabric block timer */
5219 init_timer(&phba->fabric_block_timer);
5220 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
5221 phba->fabric_block_timer.data = (unsigned long) phba;
5222 /* EA polling mode timer */
5223 init_timer(&phba->eratt_poll);
5224 phba->eratt_poll.function = lpfc_poll_eratt;
5225 phba->eratt_poll.data = (unsigned long) phba;
5226 /* FCF rediscover timer */
5227 init_timer(&phba->fcf.redisc_wait);
5228 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
5229 phba->fcf.redisc_wait.data = (unsigned long)phba;
5232 * Control structure for handling external multi-buffer mailbox
5233 * command pass-through.
5235 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5236 sizeof(struct lpfc_mbox_ext_buf_ctx));
5237 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5239 phba->max_vpi = LPFC_MAX_VPI;
5241 /* This will be set to correct value after the read_config mbox */
5242 phba->max_vports = 0;
5244 /* Program the default value of vlan_id and fc_map */
5245 phba->valid_vlan = 0;
5246 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5247 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5248 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5251 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5252 * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
5254 if (!phba->sli.ring)
5255 phba->sli.ring = kzalloc(
5256 (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
5257 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5258 if (!phba->sli.ring)
5262 * It doesn't matter what family our adapter is in, we are
5263 * limited to 2 Pages, 512 SGEs, for our SGL.
5264 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5266 max_buf_size = (2 * SLI4_PAGE_SIZE);
5267 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5268 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5271 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5272 * used to create the sg_dma_buf_pool must be dynamically calculated.
5275 if (phba->cfg_enable_bg) {
5277 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5278 * the FCP rsp, and a SGE for each. Sice we have no control
5279 * over how many protection data segments the SCSI Layer
5280 * will hand us (ie: there could be one for every block
5281 * in the IO), we just allocate enough SGEs to accomidate
5282 * our max amount and we need to limit lpfc_sg_seg_cnt to
5283 * minimize the risk of running out.
5285 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5286 sizeof(struct fcp_rsp) + max_buf_size;
5288 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5289 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5291 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5292 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5295 * The scsi_buf for a regular I/O will hold the FCP cmnd,
5296 * the FCP rsp, a SGE for each, and a SGE for up to
5297 * cfg_sg_seg_cnt data segments.
5299 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5300 sizeof(struct fcp_rsp) +
5301 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
5303 /* Total SGEs for scsi_sg_list */
5304 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5306 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
5307 * to post 1 page for the SGL.
5311 /* Initialize the host templates with the updated values. */
5312 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5313 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5315 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ)
5316 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5318 phba->cfg_sg_dma_buf_size =
5319 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5321 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5322 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5323 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5324 phba->cfg_total_seg_cnt);
5326 /* Initialize buffer queue management fields */
5327 hbq_count = lpfc_sli_hbq_count();
5328 for (i = 0; i < hbq_count; ++i)
5329 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5330 INIT_LIST_HEAD(&phba->rb_pend_list);
5331 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5332 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5335 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5337 /* Initialize the Abort scsi buffer list used by driver */
5338 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5339 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5340 /* This abort list used by worker thread */
5341 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
5344 * Initialize driver internal slow-path work queues
5347 /* Driver internel slow-path CQ Event pool */
5348 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5349 /* Response IOCB work queue list */
5350 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5351 /* Asynchronous event CQ Event work queue list */
5352 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5353 /* Fast-path XRI aborted CQ Event work queue list */
5354 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5355 /* Slow-path XRI aborted CQ Event work queue list */
5356 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5357 /* Receive queue CQ Event work queue list */
5358 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5360 /* Initialize extent block lists. */
5361 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5362 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5363 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5364 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5366 /* initialize optic_state to 0xFF */
5367 phba->sli4_hba.lnk_info.optic_state = 0xff;
5369 /* Initialize the driver internal SLI layer lists. */
5370 lpfc_sli_setup(phba);
5371 lpfc_sli_queue_setup(phba);
5373 /* Allocate device driver memory */
5374 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5378 /* IF Type 2 ports get initialized now. */
5379 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5380 LPFC_SLI_INTF_IF_TYPE_2) {
5381 rc = lpfc_pci_function_reset(phba);
5384 phba->temp_sensor_support = 1;
5387 /* Create the bootstrap mailbox command */
5388 rc = lpfc_create_bootstrap_mbox(phba);
5392 /* Set up the host's endian order with the device. */
5393 rc = lpfc_setup_endian_order(phba);
5395 goto out_free_bsmbx;
5397 /* Set up the hba's configuration parameters. */
5398 rc = lpfc_sli4_read_config(phba);
5400 goto out_free_bsmbx;
5401 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
5403 goto out_free_bsmbx;
5405 /* IF Type 0 ports get initialized now. */
5406 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5407 LPFC_SLI_INTF_IF_TYPE_0) {
5408 rc = lpfc_pci_function_reset(phba);
5410 goto out_free_bsmbx;
5413 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5417 goto out_free_bsmbx;
5420 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5421 lpfc_supported_pages(mboxq);
5422 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5424 mqe = &mboxq->u.mqe;
5425 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5426 LPFC_MAX_SUPPORTED_PAGES);
5427 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5428 switch (pn_page[i]) {
5429 case LPFC_SLI4_PARAMETERS:
5430 phba->sli4_hba.pc_sli4_params.supported = 1;
5436 /* Read the port's SLI4 Parameters capabilities if supported. */
5437 if (phba->sli4_hba.pc_sli4_params.supported)
5438 rc = lpfc_pc_sli4_params_get(phba, mboxq);
5440 mempool_free(mboxq, phba->mbox_mem_pool);
5442 goto out_free_bsmbx;
5447 * Get sli4 parameters that override parameters from Port capabilities.
5448 * If this call fails, it isn't critical unless the SLI4 parameters come
5451 rc = lpfc_get_sli4_parameters(phba, mboxq);
5453 if (phba->sli4_hba.extents_in_use &&
5454 phba->sli4_hba.rpi_hdrs_in_use) {
5455 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5456 "2999 Unsupported SLI4 Parameters "
5457 "Extents and RPI headers enabled.\n");
5458 goto out_free_bsmbx;
5461 mempool_free(mboxq, phba->mbox_mem_pool);
5463 /* Verify OAS is supported */
5464 lpfc_sli4_oas_verify(phba);
5468 /* Verify all the SLI4 queues */
5469 rc = lpfc_sli4_queue_verify(phba);
5471 goto out_free_bsmbx;
5473 /* Create driver internal CQE event pool */
5474 rc = lpfc_sli4_cq_event_pool_create(phba);
5476 goto out_free_bsmbx;
5478 /* Initialize sgl lists per host */
5479 lpfc_init_sgl_list(phba);
5481 /* Allocate and initialize active sgl array */
5482 rc = lpfc_init_active_sgl_array(phba);
5484 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5485 "1430 Failed to initialize sgl list.\n");
5486 goto out_destroy_cq_event_pool;
5488 rc = lpfc_sli4_init_rpi_hdrs(phba);
5490 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5491 "1432 Failed to initialize rpi headers.\n");
5492 goto out_free_active_sgl;
5495 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5496 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5497 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5499 if (!phba->fcf.fcf_rr_bmask) {
5500 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5501 "2759 Failed allocate memory for FCF round "
5502 "robin failover bmask\n");
5504 goto out_remove_rpi_hdrs;
5507 phba->sli4_hba.fcp_eq_hdl =
5508 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5509 (fof_vectors + phba->cfg_fcp_io_channel)),
5511 if (!phba->sli4_hba.fcp_eq_hdl) {
5512 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5513 "2572 Failed allocate memory for "
5514 "fast-path per-EQ handle array\n");
5516 goto out_free_fcf_rr_bmask;
5519 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5521 phba->cfg_fcp_io_channel)), GFP_KERNEL);
5522 if (!phba->sli4_hba.msix_entries) {
5523 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5524 "2573 Failed allocate memory for msi-x "
5525 "interrupt vector entries\n");
5527 goto out_free_fcp_eq_hdl;
5530 phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5531 phba->sli4_hba.num_present_cpu),
5533 if (!phba->sli4_hba.cpu_map) {
5534 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5535 "3327 Failed allocate memory for msi-x "
5536 "interrupt vector mapping\n");
5540 if (lpfc_used_cpu == NULL) {
5541 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
5543 if (!lpfc_used_cpu) {
5544 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5545 "3335 Failed allocate memory for msi-x "
5546 "interrupt vector mapping\n");
5547 kfree(phba->sli4_hba.cpu_map);
5551 for (i = 0; i < lpfc_present_cpu; i++)
5552 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
5555 /* Initialize io channels for round robin */
5556 cpup = phba->sli4_hba.cpu_map;
5558 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5559 cpup->channel_id = rc;
5561 if (rc >= phba->cfg_fcp_io_channel)
5566 * Enable sr-iov virtual functions if supported and configured
5567 * through the module parameter.
5569 if (phba->cfg_sriov_nr_virtfn > 0) {
5570 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5571 phba->cfg_sriov_nr_virtfn);
5573 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5574 "3020 Requested number of SR-IOV "
5575 "virtual functions (%d) is not "
5577 phba->cfg_sriov_nr_virtfn);
5578 phba->cfg_sriov_nr_virtfn = 0;
5585 kfree(phba->sli4_hba.msix_entries);
5586 out_free_fcp_eq_hdl:
5587 kfree(phba->sli4_hba.fcp_eq_hdl);
5588 out_free_fcf_rr_bmask:
5589 kfree(phba->fcf.fcf_rr_bmask);
5590 out_remove_rpi_hdrs:
5591 lpfc_sli4_remove_rpi_hdrs(phba);
5592 out_free_active_sgl:
5593 lpfc_free_active_sgl(phba);
5594 out_destroy_cq_event_pool:
5595 lpfc_sli4_cq_event_pool_destroy(phba);
5597 lpfc_destroy_bootstrap_mbox(phba);
5599 lpfc_mem_free(phba);
5604 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5605 * @phba: pointer to lpfc hba data structure.
5607 * This routine is invoked to unset the driver internal resources set up
5608 * specific for supporting the SLI-4 HBA device it attached to.
5611 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5613 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5615 /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5616 kfree(phba->sli4_hba.cpu_map);
5617 phba->sli4_hba.num_present_cpu = 0;
5618 phba->sli4_hba.num_online_cpu = 0;
5619 phba->sli4_hba.curr_disp_cpu = 0;
5621 /* Free memory allocated for msi-x interrupt vector entries */
5622 kfree(phba->sli4_hba.msix_entries);
5624 /* Free memory allocated for fast-path work queue handles */
5625 kfree(phba->sli4_hba.fcp_eq_hdl);
5627 /* Free the allocated rpi headers. */
5628 lpfc_sli4_remove_rpi_hdrs(phba);
5629 lpfc_sli4_remove_rpis(phba);
5631 /* Free eligible FCF index bmask */
5632 kfree(phba->fcf.fcf_rr_bmask);
5634 /* Free the ELS sgl list */
5635 lpfc_free_active_sgl(phba);
5636 lpfc_free_els_sgl_list(phba);
5638 /* Free the completion queue EQ event pool */
5639 lpfc_sli4_cq_event_release_all(phba);
5640 lpfc_sli4_cq_event_pool_destroy(phba);
5642 /* Release resource identifiers. */
5643 lpfc_sli4_dealloc_resource_identifiers(phba);
5645 /* Free the bsmbx region. */
5646 lpfc_destroy_bootstrap_mbox(phba);
5648 /* Free the SLI Layer memory with SLI4 HBAs */
5649 lpfc_mem_free_all(phba);
5651 /* Free the current connect table */
5652 list_for_each_entry_safe(conn_entry, next_conn_entry,
5653 &phba->fcf_conn_rec_list, list) {
5654 list_del_init(&conn_entry->list);
5662 * lpfc_init_api_table_setup - Set up init api function jump table
5663 * @phba: The hba struct for which this call is being executed.
5664 * @dev_grp: The HBA PCI-Device group number.
5666 * This routine sets up the device INIT interface API function jump table
5669 * Returns: 0 - success, -ENODEV - failure.
5672 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5674 phba->lpfc_hba_init_link = lpfc_hba_init_link;
5675 phba->lpfc_hba_down_link = lpfc_hba_down_link;
5676 phba->lpfc_selective_reset = lpfc_selective_reset;
5678 case LPFC_PCI_DEV_LP:
5679 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5680 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5681 phba->lpfc_stop_port = lpfc_stop_port_s3;
5683 case LPFC_PCI_DEV_OC:
5684 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5685 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5686 phba->lpfc_stop_port = lpfc_stop_port_s4;
5689 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5690 "1431 Invalid HBA PCI-device group: 0x%x\n",
5699 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5700 * @phba: pointer to lpfc hba data structure.
5702 * This routine is invoked to set up the driver internal resources before the
5703 * device specific resource setup to support the HBA device it attached to.
5707 * other values - error
5710 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5713 * Driver resources common to all SLI revisions
5715 atomic_set(&phba->fast_event_count, 0);
5716 spin_lock_init(&phba->hbalock);
5718 /* Initialize ndlp management spinlock */
5719 spin_lock_init(&phba->ndlp_lock);
5721 INIT_LIST_HEAD(&phba->port_list);
5722 INIT_LIST_HEAD(&phba->work_list);
5723 init_waitqueue_head(&phba->wait_4_mlo_m_q);
5725 /* Initialize the wait queue head for the kernel thread */
5726 init_waitqueue_head(&phba->work_waitq);
5728 /* Initialize the scsi buffer list used by driver for scsi IO */
5729 spin_lock_init(&phba->scsi_buf_list_get_lock);
5730 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5731 spin_lock_init(&phba->scsi_buf_list_put_lock);
5732 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5734 /* Initialize the fabric iocb list */
5735 INIT_LIST_HEAD(&phba->fabric_iocb_list);
5737 /* Initialize list to save ELS buffers */
5738 INIT_LIST_HEAD(&phba->elsbuf);
5740 /* Initialize FCF connection rec list */
5741 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5743 /* Initialize OAS configuration list */
5744 spin_lock_init(&phba->devicelock);
5745 INIT_LIST_HEAD(&phba->luns);
5751 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5752 * @phba: pointer to lpfc hba data structure.
5754 * This routine is invoked to set up the driver internal resources after the
5755 * device specific resource setup to support the HBA device it attached to.
5759 * other values - error
5762 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5766 /* Startup the kernel thread for this host adapter. */
5767 phba->worker_thread = kthread_run(lpfc_do_work, phba,
5768 "lpfc_worker_%d", phba->brd_no);
5769 if (IS_ERR(phba->worker_thread)) {
5770 error = PTR_ERR(phba->worker_thread);
5778 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5779 * @phba: pointer to lpfc hba data structure.
5781 * This routine is invoked to unset the driver internal resources set up after
5782 * the device specific resource setup for supporting the HBA device it
5786 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5788 /* Stop kernel worker thread */
5789 kthread_stop(phba->worker_thread);
5793 * lpfc_free_iocb_list - Free iocb list.
5794 * @phba: pointer to lpfc hba data structure.
5796 * This routine is invoked to free the driver's IOCB list and memory.
5799 lpfc_free_iocb_list(struct lpfc_hba *phba)
5801 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5803 spin_lock_irq(&phba->hbalock);
5804 list_for_each_entry_safe(iocbq_entry, iocbq_next,
5805 &phba->lpfc_iocb_list, list) {
5806 list_del(&iocbq_entry->list);
5808 phba->total_iocbq_bufs--;
5810 spin_unlock_irq(&phba->hbalock);
5816 * lpfc_init_iocb_list - Allocate and initialize iocb list.
5817 * @phba: pointer to lpfc hba data structure.
5819 * This routine is invoked to allocate and initizlize the driver's IOCB
5820 * list and set up the IOCB tag array accordingly.
5824 * other values - error
5827 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5829 struct lpfc_iocbq *iocbq_entry = NULL;
5833 /* Initialize and populate the iocb list per host. */
5834 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5835 for (i = 0; i < iocb_count; i++) {
5836 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5837 if (iocbq_entry == NULL) {
5838 printk(KERN_ERR "%s: only allocated %d iocbs of "
5839 "expected %d count. Unloading driver.\n",
5840 __func__, i, LPFC_IOCB_LIST_CNT);
5841 goto out_free_iocbq;
5844 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5847 printk(KERN_ERR "%s: failed to allocate IOTAG. "
5848 "Unloading driver.\n", __func__);
5849 goto out_free_iocbq;
5851 iocbq_entry->sli4_lxritag = NO_XRI;
5852 iocbq_entry->sli4_xritag = NO_XRI;
5854 spin_lock_irq(&phba->hbalock);
5855 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5856 phba->total_iocbq_bufs++;
5857 spin_unlock_irq(&phba->hbalock);
5863 lpfc_free_iocb_list(phba);
5869 * lpfc_free_sgl_list - Free a given sgl list.
5870 * @phba: pointer to lpfc hba data structure.
5871 * @sglq_list: pointer to the head of sgl list.
5873 * This routine is invoked to free a give sgl list and memory.
5876 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5878 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5880 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5881 list_del(&sglq_entry->list);
5882 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5888 * lpfc_free_els_sgl_list - Free els sgl list.
5889 * @phba: pointer to lpfc hba data structure.
5891 * This routine is invoked to free the driver's els sgl list and memory.
5894 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5896 LIST_HEAD(sglq_list);
5897 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
5899 /* Retrieve all els sgls from driver list */
5900 spin_lock_irq(&phba->hbalock);
5901 spin_lock(&pring->ring_lock);
5902 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5903 spin_unlock(&pring->ring_lock);
5904 spin_unlock_irq(&phba->hbalock);
5906 /* Now free the sgl list */
5907 lpfc_free_sgl_list(phba, &sglq_list);
5911 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5912 * @phba: pointer to lpfc hba data structure.
5914 * This routine is invoked to allocate the driver's active sgl memory.
5915 * This array will hold the sglq_entry's for active IOs.
5918 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5921 size = sizeof(struct lpfc_sglq *);
5922 size *= phba->sli4_hba.max_cfg_param.max_xri;
5924 phba->sli4_hba.lpfc_sglq_active_list =
5925 kzalloc(size, GFP_KERNEL);
5926 if (!phba->sli4_hba.lpfc_sglq_active_list)
5932 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5933 * @phba: pointer to lpfc hba data structure.
5935 * This routine is invoked to walk through the array of active sglq entries
5936 * and free all of the resources.
5937 * This is just a place holder for now.
5940 lpfc_free_active_sgl(struct lpfc_hba *phba)
5942 kfree(phba->sli4_hba.lpfc_sglq_active_list);
5946 * lpfc_init_sgl_list - Allocate and initialize sgl list.
5947 * @phba: pointer to lpfc hba data structure.
5949 * This routine is invoked to allocate and initizlize the driver's sgl
5950 * list and set up the sgl xritag tag array accordingly.
5954 lpfc_init_sgl_list(struct lpfc_hba *phba)
5956 /* Initialize and populate the sglq list per host/VF. */
5957 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5958 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5960 /* els xri-sgl book keeping */
5961 phba->sli4_hba.els_xri_cnt = 0;
5963 /* scsi xri-buffer book keeping */
5964 phba->sli4_hba.scsi_xri_cnt = 0;
5968 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5969 * @phba: pointer to lpfc hba data structure.
5971 * This routine is invoked to post rpi header templates to the
5972 * port for those SLI4 ports that do not support extents. This routine
5973 * posts a PAGE_SIZE memory region to the port to hold up to
5974 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
5975 * and should be called only when interrupts are disabled.
5979 * -ERROR - otherwise.
5982 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5985 struct lpfc_rpi_hdr *rpi_hdr;
5987 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5988 if (!phba->sli4_hba.rpi_hdrs_in_use)
5990 if (phba->sli4_hba.extents_in_use)
5993 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5995 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5996 "0391 Error during rpi post operation\n");
5997 lpfc_sli4_remove_rpis(phba);
6005 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
6006 * @phba: pointer to lpfc hba data structure.
6008 * This routine is invoked to allocate a single 4KB memory region to
6009 * support rpis and stores them in the phba. This single region
6010 * provides support for up to 64 rpis. The region is used globally
6014 * A valid rpi hdr on success.
6015 * A NULL pointer on any failure.
6017 struct lpfc_rpi_hdr *
6018 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
6020 uint16_t rpi_limit, curr_rpi_range;
6021 struct lpfc_dmabuf *dmabuf;
6022 struct lpfc_rpi_hdr *rpi_hdr;
6026 * If the SLI4 port supports extents, posting the rpi header isn't
6027 * required. Set the expected maximum count and let the actual value
6028 * get set when extents are fully allocated.
6030 if (!phba->sli4_hba.rpi_hdrs_in_use)
6032 if (phba->sli4_hba.extents_in_use)
6035 /* The limit on the logical index is just the max_rpi count. */
6036 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
6037 phba->sli4_hba.max_cfg_param.max_rpi - 1;
6039 spin_lock_irq(&phba->hbalock);
6041 * Establish the starting RPI in this header block. The starting
6042 * rpi is normalized to a zero base because the physical rpi is
6045 curr_rpi_range = phba->sli4_hba.next_rpi;
6046 spin_unlock_irq(&phba->hbalock);
6049 * The port has a limited number of rpis. The increment here
6050 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
6051 * and to allow the full max_rpi range per port.
6053 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
6054 rpi_count = rpi_limit - curr_rpi_range;
6056 rpi_count = LPFC_RPI_HDR_COUNT;
6061 * First allocate the protocol header region for the port. The
6062 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
6064 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6068 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
6069 LPFC_HDR_TEMPLATE_SIZE,
6070 &dmabuf->phys, GFP_KERNEL);
6071 if (!dmabuf->virt) {
6073 goto err_free_dmabuf;
6076 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
6078 goto err_free_coherent;
6081 /* Save the rpi header data for cleanup later. */
6082 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
6084 goto err_free_coherent;
6086 rpi_hdr->dmabuf = dmabuf;
6087 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6088 rpi_hdr->page_count = 1;
6089 spin_lock_irq(&phba->hbalock);
6091 /* The rpi_hdr stores the logical index only. */
6092 rpi_hdr->start_rpi = curr_rpi_range;
6093 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6096 * The next_rpi stores the next logical module-64 rpi value used
6097 * to post physical rpis in subsequent rpi postings.
6099 phba->sli4_hba.next_rpi += rpi_count;
6100 spin_unlock_irq(&phba->hbalock);
6104 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6105 dmabuf->virt, dmabuf->phys);
6112 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6113 * @phba: pointer to lpfc hba data structure.
6115 * This routine is invoked to remove all memory resources allocated
6116 * to support rpis for SLI4 ports not supporting extents. This routine
6117 * presumes the caller has released all rpis consumed by fabric or port
6118 * logins and is prepared to have the header pages removed.
6121 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6123 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6125 if (!phba->sli4_hba.rpi_hdrs_in_use)
6128 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6129 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6130 list_del(&rpi_hdr->list);
6131 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6132 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6133 kfree(rpi_hdr->dmabuf);
6137 /* There are no rpis available to the port now. */
6138 phba->sli4_hba.next_rpi = 0;
6142 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6143 * @pdev: pointer to pci device data structure.
6145 * This routine is invoked to allocate the driver hba data structure for an
6146 * HBA device. If the allocation is successful, the phba reference to the
6147 * PCI device data structure is set.
6150 * pointer to @phba - successful
6153 static struct lpfc_hba *
6154 lpfc_hba_alloc(struct pci_dev *pdev)
6156 struct lpfc_hba *phba;
6158 /* Allocate memory for HBA structure */
6159 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6161 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6165 /* Set reference to PCI device in HBA structure */
6166 phba->pcidev = pdev;
6168 /* Assign an unused board number */
6169 phba->brd_no = lpfc_get_instance();
6170 if (phba->brd_no < 0) {
6174 phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
6176 spin_lock_init(&phba->ct_ev_lock);
6177 INIT_LIST_HEAD(&phba->ct_ev_waiters);
6183 * lpfc_hba_free - Free driver hba data structure with a device.
6184 * @phba: pointer to lpfc hba data structure.
6186 * This routine is invoked to free the driver hba data structure with an
6190 lpfc_hba_free(struct lpfc_hba *phba)
6192 /* Release the driver assigned board number */
6193 idr_remove(&lpfc_hba_index, phba->brd_no);
6195 /* Free memory allocated with sli rings */
6196 kfree(phba->sli.ring);
6197 phba->sli.ring = NULL;
6204 * lpfc_create_shost - Create hba physical port with associated scsi host.
6205 * @phba: pointer to lpfc hba data structure.
6207 * This routine is invoked to create HBA physical port and associate a SCSI
6212 * other values - error
6215 lpfc_create_shost(struct lpfc_hba *phba)
6217 struct lpfc_vport *vport;
6218 struct Scsi_Host *shost;
6220 /* Initialize HBA FC structure */
6221 phba->fc_edtov = FF_DEF_EDTOV;
6222 phba->fc_ratov = FF_DEF_RATOV;
6223 phba->fc_altov = FF_DEF_ALTOV;
6224 phba->fc_arbtov = FF_DEF_ARBTOV;
6226 atomic_set(&phba->sdev_cnt, 0);
6227 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6231 shost = lpfc_shost_from_vport(vport);
6232 phba->pport = vport;
6233 lpfc_debugfs_initialize(vport);
6234 /* Put reference to SCSI host to driver's device private data */
6235 pci_set_drvdata(phba->pcidev, shost);
6238 * At this point we are fully registered with PSA. In addition,
6239 * any initial discovery should be completed.
6241 vport->load_flag |= FC_ALLOW_FDMI;
6242 if (phba->cfg_enable_SmartSAN ||
6243 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
6245 /* Setup appropriate attribute masks */
6246 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
6247 if (phba->cfg_enable_SmartSAN)
6248 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
6250 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
6256 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6257 * @phba: pointer to lpfc hba data structure.
6259 * This routine is invoked to destroy HBA physical port and the associated
6263 lpfc_destroy_shost(struct lpfc_hba *phba)
6265 struct lpfc_vport *vport = phba->pport;
6267 /* Destroy physical port that associated with the SCSI host */
6268 destroy_port(vport);
6274 * lpfc_setup_bg - Setup Block guard structures and debug areas.
6275 * @phba: pointer to lpfc hba data structure.
6276 * @shost: the shost to be used to detect Block guard settings.
6278 * This routine sets up the local Block guard protocol settings for @shost.
6279 * This routine also allocates memory for debugging bg buffers.
6282 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6288 if (lpfc_prot_mask && lpfc_prot_guard) {
6289 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6290 "1478 Registering BlockGuard with the "
6293 old_mask = lpfc_prot_mask;
6294 old_guard = lpfc_prot_guard;
6296 /* Only allow supported values */
6297 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6298 SHOST_DIX_TYPE0_PROTECTION |
6299 SHOST_DIX_TYPE1_PROTECTION);
6300 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
6302 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6303 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6304 lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6306 if (lpfc_prot_mask && lpfc_prot_guard) {
6307 if ((old_mask != lpfc_prot_mask) ||
6308 (old_guard != lpfc_prot_guard))
6309 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6310 "1475 Registering BlockGuard with the "
6311 "SCSI layer: mask %d guard %d\n",
6312 lpfc_prot_mask, lpfc_prot_guard);
6314 scsi_host_set_prot(shost, lpfc_prot_mask);
6315 scsi_host_set_guard(shost, lpfc_prot_guard);
6317 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6318 "1479 Not Registering BlockGuard with the SCSI "
6319 "layer, Bad protection parameters: %d %d\n",
6320 old_mask, old_guard);
6323 if (!_dump_buf_data) {
6325 spin_lock_init(&_dump_buf_lock);
6327 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6328 if (_dump_buf_data) {
6329 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6330 "9043 BLKGRD: allocated %d pages for "
6331 "_dump_buf_data at 0x%p\n",
6332 (1 << pagecnt), _dump_buf_data);
6333 _dump_buf_data_order = pagecnt;
6334 memset(_dump_buf_data, 0,
6335 ((1 << PAGE_SHIFT) << pagecnt));
6340 if (!_dump_buf_data_order)
6341 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6342 "9044 BLKGRD: ERROR unable to allocate "
6343 "memory for hexdump\n");
6345 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6346 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
6347 "\n", _dump_buf_data);
6348 if (!_dump_buf_dif) {
6351 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6352 if (_dump_buf_dif) {
6353 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6354 "9046 BLKGRD: allocated %d pages for "
6355 "_dump_buf_dif at 0x%p\n",
6356 (1 << pagecnt), _dump_buf_dif);
6357 _dump_buf_dif_order = pagecnt;
6358 memset(_dump_buf_dif, 0,
6359 ((1 << PAGE_SHIFT) << pagecnt));
6364 if (!_dump_buf_dif_order)
6365 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6366 "9047 BLKGRD: ERROR unable to allocate "
6367 "memory for hexdump\n");
6369 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6370 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6375 * lpfc_post_init_setup - Perform necessary device post initialization setup.
6376 * @phba: pointer to lpfc hba data structure.
6378 * This routine is invoked to perform all the necessary post initialization
6379 * setup for the device.
6382 lpfc_post_init_setup(struct lpfc_hba *phba)
6384 struct Scsi_Host *shost;
6385 struct lpfc_adapter_event_header adapter_event;
6387 /* Get the default values for Model Name and Description */
6388 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6391 * hba setup may have changed the hba_queue_depth so we need to
6392 * adjust the value of can_queue.
6394 shost = pci_get_drvdata(phba->pcidev);
6395 shost->can_queue = phba->cfg_hba_queue_depth - 10;
6396 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6397 lpfc_setup_bg(phba, shost);
6399 lpfc_host_attrib_init(shost);
6401 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6402 spin_lock_irq(shost->host_lock);
6403 lpfc_poll_start_timer(phba);
6404 spin_unlock_irq(shost->host_lock);
6407 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6408 "0428 Perform SCSI scan\n");
6409 /* Send board arrival event to upper layer */
6410 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6411 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6412 fc_host_post_vendor_event(shost, fc_get_event_number(),
6413 sizeof(adapter_event),
6414 (char *) &adapter_event,
6420 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6421 * @phba: pointer to lpfc hba data structure.
6423 * This routine is invoked to set up the PCI device memory space for device
6424 * with SLI-3 interface spec.
6428 * other values - error
6431 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6433 struct pci_dev *pdev;
6434 unsigned long bar0map_len, bar2map_len;
6437 int error = -ENODEV;
6439 /* Obtain PCI device reference */
6443 pdev = phba->pcidev;
6445 /* Set the device DMA mask size */
6446 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6447 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6448 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6449 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6454 /* Get the bus address of Bar0 and Bar2 and the number of bytes
6455 * required by each mapping.
6457 phba->pci_bar0_map = pci_resource_start(pdev, 0);
6458 bar0map_len = pci_resource_len(pdev, 0);
6460 phba->pci_bar2_map = pci_resource_start(pdev, 2);
6461 bar2map_len = pci_resource_len(pdev, 2);
6463 /* Map HBA SLIM to a kernel virtual address. */
6464 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6465 if (!phba->slim_memmap_p) {
6466 dev_printk(KERN_ERR, &pdev->dev,
6467 "ioremap failed for SLIM memory.\n");
6471 /* Map HBA Control Registers to a kernel virtual address. */
6472 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6473 if (!phba->ctrl_regs_memmap_p) {
6474 dev_printk(KERN_ERR, &pdev->dev,
6475 "ioremap failed for HBA control registers.\n");
6476 goto out_iounmap_slim;
6479 /* Allocate memory for SLI-2 structures */
6480 phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6481 &phba->slim2p.phys, GFP_KERNEL);
6482 if (!phba->slim2p.virt)
6485 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6486 phba->mbox_ext = (phba->slim2p.virt +
6487 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6488 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6489 phba->IOCBs = (phba->slim2p.virt +
6490 offsetof(struct lpfc_sli2_slim, IOCBs));
6492 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6493 lpfc_sli_hbq_size(),
6494 &phba->hbqslimp.phys,
6496 if (!phba->hbqslimp.virt)
6499 hbq_count = lpfc_sli_hbq_count();
6500 ptr = phba->hbqslimp.virt;
6501 for (i = 0; i < hbq_count; ++i) {
6502 phba->hbqs[i].hbq_virt = ptr;
6503 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6504 ptr += (lpfc_hbq_defs[i]->entry_count *
6505 sizeof(struct lpfc_hbq_entry));
6507 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6508 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6510 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6512 INIT_LIST_HEAD(&phba->rb_pend_list);
6514 phba->MBslimaddr = phba->slim_memmap_p;
6515 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6516 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6517 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6518 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6523 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6524 phba->slim2p.virt, phba->slim2p.phys);
6526 iounmap(phba->ctrl_regs_memmap_p);
6528 iounmap(phba->slim_memmap_p);
6534 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6535 * @phba: pointer to lpfc hba data structure.
6537 * This routine is invoked to unset the PCI device memory space for device
6538 * with SLI-3 interface spec.
6541 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6543 struct pci_dev *pdev;
6545 /* Obtain PCI device reference */
6549 pdev = phba->pcidev;
6551 /* Free coherent DMA memory allocated */
6552 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6553 phba->hbqslimp.virt, phba->hbqslimp.phys);
6554 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6555 phba->slim2p.virt, phba->slim2p.phys);
6557 /* I/O memory unmap */
6558 iounmap(phba->ctrl_regs_memmap_p);
6559 iounmap(phba->slim_memmap_p);
6565 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6566 * @phba: pointer to lpfc hba data structure.
6568 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6569 * done and check status.
6571 * Return 0 if successful, otherwise -ENODEV.
6574 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6576 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6577 struct lpfc_register reg_data;
6578 int i, port_error = 0;
6581 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6582 memset(®_data, 0, sizeof(reg_data));
6583 if (!phba->sli4_hba.PSMPHRregaddr)
6586 /* Wait up to 30 seconds for the SLI Port POST done and ready */
6587 for (i = 0; i < 3000; i++) {
6588 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6589 &portsmphr_reg.word0) ||
6590 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6591 /* Port has a fatal POST error, break out */
6592 port_error = -ENODEV;
6595 if (LPFC_POST_STAGE_PORT_READY ==
6596 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6602 * If there was a port error during POST, then don't proceed with
6603 * other register reads as the data may not be valid. Just exit.
6606 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6607 "1408 Port Failed POST - portsmphr=0x%x, "
6608 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6609 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6610 portsmphr_reg.word0,
6611 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6612 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6613 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6614 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6615 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6616 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6617 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6618 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6620 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6621 "2534 Device Info: SLIFamily=0x%x, "
6622 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6623 "SLIHint_2=0x%x, FT=0x%x\n",
6624 bf_get(lpfc_sli_intf_sli_family,
6625 &phba->sli4_hba.sli_intf),
6626 bf_get(lpfc_sli_intf_slirev,
6627 &phba->sli4_hba.sli_intf),
6628 bf_get(lpfc_sli_intf_if_type,
6629 &phba->sli4_hba.sli_intf),
6630 bf_get(lpfc_sli_intf_sli_hint1,
6631 &phba->sli4_hba.sli_intf),
6632 bf_get(lpfc_sli_intf_sli_hint2,
6633 &phba->sli4_hba.sli_intf),
6634 bf_get(lpfc_sli_intf_func_type,
6635 &phba->sli4_hba.sli_intf));
6637 * Check for other Port errors during the initialization
6638 * process. Fail the load if the port did not come up
6641 if_type = bf_get(lpfc_sli_intf_if_type,
6642 &phba->sli4_hba.sli_intf);
6644 case LPFC_SLI_INTF_IF_TYPE_0:
6645 phba->sli4_hba.ue_mask_lo =
6646 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6647 phba->sli4_hba.ue_mask_hi =
6648 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6650 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6652 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6653 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6654 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6655 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6656 "1422 Unrecoverable Error "
6657 "Detected during POST "
6658 "uerr_lo_reg=0x%x, "
6659 "uerr_hi_reg=0x%x, "
6660 "ue_mask_lo_reg=0x%x, "
6661 "ue_mask_hi_reg=0x%x\n",
6664 phba->sli4_hba.ue_mask_lo,
6665 phba->sli4_hba.ue_mask_hi);
6666 port_error = -ENODEV;
6669 case LPFC_SLI_INTF_IF_TYPE_2:
6670 /* Final checks. The port status should be clean. */
6671 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6673 (bf_get(lpfc_sliport_status_err, ®_data) &&
6674 !bf_get(lpfc_sliport_status_rn, ®_data))) {
6675 phba->work_status[0] =
6676 readl(phba->sli4_hba.u.if_type2.
6678 phba->work_status[1] =
6679 readl(phba->sli4_hba.u.if_type2.
6681 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6682 "2888 Unrecoverable port error "
6683 "following POST: port status reg "
6684 "0x%x, port_smphr reg 0x%x, "
6685 "error 1=0x%x, error 2=0x%x\n",
6687 portsmphr_reg.word0,
6688 phba->work_status[0],
6689 phba->work_status[1]);
6690 port_error = -ENODEV;
6693 case LPFC_SLI_INTF_IF_TYPE_1:
6702 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6703 * @phba: pointer to lpfc hba data structure.
6704 * @if_type: The SLI4 interface type getting configured.
6706 * This routine is invoked to set up SLI4 BAR0 PCI config space register
6710 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6713 case LPFC_SLI_INTF_IF_TYPE_0:
6714 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6715 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6716 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6717 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6718 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6719 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6720 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6721 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6722 phba->sli4_hba.SLIINTFregaddr =
6723 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6725 case LPFC_SLI_INTF_IF_TYPE_2:
6726 phba->sli4_hba.u.if_type2.ERR1regaddr =
6727 phba->sli4_hba.conf_regs_memmap_p +
6728 LPFC_CTL_PORT_ER1_OFFSET;
6729 phba->sli4_hba.u.if_type2.ERR2regaddr =
6730 phba->sli4_hba.conf_regs_memmap_p +
6731 LPFC_CTL_PORT_ER2_OFFSET;
6732 phba->sli4_hba.u.if_type2.CTRLregaddr =
6733 phba->sli4_hba.conf_regs_memmap_p +
6734 LPFC_CTL_PORT_CTL_OFFSET;
6735 phba->sli4_hba.u.if_type2.STATUSregaddr =
6736 phba->sli4_hba.conf_regs_memmap_p +
6737 LPFC_CTL_PORT_STA_OFFSET;
6738 phba->sli4_hba.SLIINTFregaddr =
6739 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6740 phba->sli4_hba.PSMPHRregaddr =
6741 phba->sli4_hba.conf_regs_memmap_p +
6742 LPFC_CTL_PORT_SEM_OFFSET;
6743 phba->sli4_hba.RQDBregaddr =
6744 phba->sli4_hba.conf_regs_memmap_p +
6745 LPFC_ULP0_RQ_DOORBELL;
6746 phba->sli4_hba.WQDBregaddr =
6747 phba->sli4_hba.conf_regs_memmap_p +
6748 LPFC_ULP0_WQ_DOORBELL;
6749 phba->sli4_hba.EQCQDBregaddr =
6750 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6751 phba->sli4_hba.MQDBregaddr =
6752 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6753 phba->sli4_hba.BMBXregaddr =
6754 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6756 case LPFC_SLI_INTF_IF_TYPE_1:
6758 dev_printk(KERN_ERR, &phba->pcidev->dev,
6759 "FATAL - unsupported SLI4 interface type - %d\n",
6766 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6767 * @phba: pointer to lpfc hba data structure.
6769 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6773 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6775 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6776 LPFC_SLIPORT_IF0_SMPHR;
6777 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6779 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6781 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6786 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6787 * @phba: pointer to lpfc hba data structure.
6788 * @vf: virtual function number
6790 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6791 * based on the given viftual function number, @vf.
6793 * Return 0 if successful, otherwise -ENODEV.
6796 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6798 if (vf > LPFC_VIR_FUNC_MAX)
6801 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6802 vf * LPFC_VFR_PAGE_SIZE +
6803 LPFC_ULP0_RQ_DOORBELL);
6804 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6805 vf * LPFC_VFR_PAGE_SIZE +
6806 LPFC_ULP0_WQ_DOORBELL);
6807 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6808 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6809 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6810 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6811 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6812 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6817 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6818 * @phba: pointer to lpfc hba data structure.
6820 * This routine is invoked to create the bootstrap mailbox
6821 * region consistent with the SLI-4 interface spec. This
6822 * routine allocates all memory necessary to communicate
6823 * mailbox commands to the port and sets up all alignment
6824 * needs. No locks are expected to be held when calling
6829 * -ENOMEM - could not allocated memory.
6832 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6835 struct lpfc_dmabuf *dmabuf;
6836 struct dma_address *dma_address;
6840 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6845 * The bootstrap mailbox region is comprised of 2 parts
6846 * plus an alignment restriction of 16 bytes.
6848 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6849 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
6850 &dmabuf->phys, GFP_KERNEL);
6851 if (!dmabuf->virt) {
6857 * Initialize the bootstrap mailbox pointers now so that the register
6858 * operations are simple later. The mailbox dma address is required
6859 * to be 16-byte aligned. Also align the virtual memory as each
6860 * maibox is copied into the bmbx mailbox region before issuing the
6861 * command to the port.
6863 phba->sli4_hba.bmbx.dmabuf = dmabuf;
6864 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6866 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6867 LPFC_ALIGN_16_BYTE);
6868 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6869 LPFC_ALIGN_16_BYTE);
6872 * Set the high and low physical addresses now. The SLI4 alignment
6873 * requirement is 16 bytes and the mailbox is posted to the port
6874 * as two 30-bit addresses. The other data is a bit marking whether
6875 * the 30-bit address is the high or low address.
6876 * Upcast bmbx aphys to 64bits so shift instruction compiles
6877 * clean on 32 bit machines.
6879 dma_address = &phba->sli4_hba.bmbx.dma_address;
6880 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6881 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6882 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6883 LPFC_BMBX_BIT1_ADDR_HI);
6885 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6886 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6887 LPFC_BMBX_BIT1_ADDR_LO);
6892 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6893 * @phba: pointer to lpfc hba data structure.
6895 * This routine is invoked to teardown the bootstrap mailbox
6896 * region and release all host resources. This routine requires
6897 * the caller to ensure all mailbox commands recovered, no
6898 * additional mailbox comands are sent, and interrupts are disabled
6899 * before calling this routine.
6903 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6905 dma_free_coherent(&phba->pcidev->dev,
6906 phba->sli4_hba.bmbx.bmbx_size,
6907 phba->sli4_hba.bmbx.dmabuf->virt,
6908 phba->sli4_hba.bmbx.dmabuf->phys);
6910 kfree(phba->sli4_hba.bmbx.dmabuf);
6911 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6915 * lpfc_sli4_read_config - Get the config parameters.
6916 * @phba: pointer to lpfc hba data structure.
6918 * This routine is invoked to read the configuration parameters from the HBA.
6919 * The configuration parameters are used to set the base and maximum values
6920 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6921 * allocation for the port.
6925 * -ENOMEM - No available memory
6926 * -EIO - The mailbox failed to complete successfully.
6929 lpfc_sli4_read_config(struct lpfc_hba *phba)
6932 struct lpfc_mbx_read_config *rd_config;
6933 union lpfc_sli4_cfg_shdr *shdr;
6934 uint32_t shdr_status, shdr_add_status;
6935 struct lpfc_mbx_get_func_cfg *get_func_cfg;
6936 struct lpfc_rsrc_desc_fcfcoe *desc;
6938 int length, i, rc = 0, rc2;
6940 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6942 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6943 "2011 Unable to allocate memory for issuing "
6944 "SLI_CONFIG_SPECIAL mailbox command\n");
6948 lpfc_read_config(phba, pmb);
6950 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6951 if (rc != MBX_SUCCESS) {
6952 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6953 "2012 Mailbox failed , mbxCmd x%x "
6954 "READ_CONFIG, mbxStatus x%x\n",
6955 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6956 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6959 rd_config = &pmb->u.mqe.un.rd_config;
6960 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6961 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6962 phba->sli4_hba.lnk_info.lnk_tp =
6963 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6964 phba->sli4_hba.lnk_info.lnk_no =
6965 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6966 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6967 "3081 lnk_type:%d, lnk_numb:%d\n",
6968 phba->sli4_hba.lnk_info.lnk_tp,
6969 phba->sli4_hba.lnk_info.lnk_no);
6971 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6972 "3082 Mailbox (x%x) returned ldv:x0\n",
6973 bf_get(lpfc_mqe_command, &pmb->u.mqe));
6974 phba->sli4_hba.extents_in_use =
6975 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6976 phba->sli4_hba.max_cfg_param.max_xri =
6977 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6978 phba->sli4_hba.max_cfg_param.xri_base =
6979 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6980 phba->sli4_hba.max_cfg_param.max_vpi =
6981 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6982 phba->sli4_hba.max_cfg_param.vpi_base =
6983 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6984 phba->sli4_hba.max_cfg_param.max_rpi =
6985 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6986 phba->sli4_hba.max_cfg_param.rpi_base =
6987 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6988 phba->sli4_hba.max_cfg_param.max_vfi =
6989 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6990 phba->sli4_hba.max_cfg_param.vfi_base =
6991 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6992 phba->sli4_hba.max_cfg_param.max_fcfi =
6993 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6994 phba->sli4_hba.max_cfg_param.max_eq =
6995 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6996 phba->sli4_hba.max_cfg_param.max_rq =
6997 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6998 phba->sli4_hba.max_cfg_param.max_wq =
6999 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
7000 phba->sli4_hba.max_cfg_param.max_cq =
7001 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
7002 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
7003 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
7004 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
7005 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
7006 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
7007 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
7008 phba->max_vports = phba->max_vpi;
7009 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7010 "2003 cfg params Extents? %d "
7016 phba->sli4_hba.extents_in_use,
7017 phba->sli4_hba.max_cfg_param.xri_base,
7018 phba->sli4_hba.max_cfg_param.max_xri,
7019 phba->sli4_hba.max_cfg_param.vpi_base,
7020 phba->sli4_hba.max_cfg_param.max_vpi,
7021 phba->sli4_hba.max_cfg_param.vfi_base,
7022 phba->sli4_hba.max_cfg_param.max_vfi,
7023 phba->sli4_hba.max_cfg_param.rpi_base,
7024 phba->sli4_hba.max_cfg_param.max_rpi,
7025 phba->sli4_hba.max_cfg_param.max_fcfi);
7031 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
7032 length = phba->sli4_hba.max_cfg_param.max_xri -
7033 lpfc_sli4_get_els_iocb_cnt(phba);
7034 if (phba->cfg_hba_queue_depth > length) {
7035 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7036 "3361 HBA queue depth changed from %d to %d\n",
7037 phba->cfg_hba_queue_depth, length);
7038 phba->cfg_hba_queue_depth = length;
7041 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
7042 LPFC_SLI_INTF_IF_TYPE_2)
7045 /* get the pf# and vf# for SLI4 if_type 2 port */
7046 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
7047 sizeof(struct lpfc_sli4_cfg_mhdr));
7048 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
7049 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
7050 length, LPFC_SLI4_MBX_EMBED);
7052 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7053 shdr = (union lpfc_sli4_cfg_shdr *)
7054 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
7055 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7056 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7057 if (rc2 || shdr_status || shdr_add_status) {
7058 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7059 "3026 Mailbox failed , mbxCmd x%x "
7060 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
7061 bf_get(lpfc_mqe_command, &pmb->u.mqe),
7062 bf_get(lpfc_mqe_status, &pmb->u.mqe));
7066 /* search for fc_fcoe resrouce descriptor */
7067 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
7069 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
7070 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
7071 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
7072 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
7073 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
7074 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
7077 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
7078 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
7079 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
7080 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
7081 phba->sli4_hba.iov.pf_number =
7082 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
7083 phba->sli4_hba.iov.vf_number =
7084 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
7089 if (i < LPFC_RSRC_DESC_MAX_NUM)
7090 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7091 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
7092 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
7093 phba->sli4_hba.iov.vf_number);
7095 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7096 "3028 GET_FUNCTION_CONFIG: failed to find "
7097 "Resrouce Descriptor:x%x\n",
7098 LPFC_RSRC_DESC_TYPE_FCFCOE);
7101 mempool_free(pmb, phba->mbox_mem_pool);
7106 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
7107 * @phba: pointer to lpfc hba data structure.
7109 * This routine is invoked to setup the port-side endian order when
7110 * the port if_type is 0. This routine has no function for other
7115 * -ENOMEM - No available memory
7116 * -EIO - The mailbox failed to complete successfully.
7119 lpfc_setup_endian_order(struct lpfc_hba *phba)
7121 LPFC_MBOXQ_t *mboxq;
7122 uint32_t if_type, rc = 0;
7123 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7124 HOST_ENDIAN_HIGH_WORD1};
7126 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7128 case LPFC_SLI_INTF_IF_TYPE_0:
7129 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7132 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7133 "0492 Unable to allocate memory for "
7134 "issuing SLI_CONFIG_SPECIAL mailbox "
7140 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
7141 * two words to contain special data values and no other data.
7143 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
7144 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
7145 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7146 if (rc != MBX_SUCCESS) {
7147 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7148 "0493 SLI_CONFIG_SPECIAL mailbox "
7149 "failed with status x%x\n",
7153 mempool_free(mboxq, phba->mbox_mem_pool);
7155 case LPFC_SLI_INTF_IF_TYPE_2:
7156 case LPFC_SLI_INTF_IF_TYPE_1:
7164 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
7165 * @phba: pointer to lpfc hba data structure.
7167 * This routine is invoked to check the user settable queue counts for EQs and
7168 * CQs. after this routine is called the counts will be set to valid values that
7169 * adhere to the constraints of the system's interrupt vectors and the port's
7174 * -ENOMEM - No available memory
7177 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
7179 int cfg_fcp_io_channel;
7182 int fof_vectors = phba->cfg_fof ? 1 : 0;
7185 * Sanity check for configured queue parameters against the run-time
7189 /* Sanity check on HBA EQ parameters */
7190 cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
7192 /* It doesn't make sense to have more io channels then online CPUs */
7193 for_each_present_cpu(cpu) {
7194 if (cpu_online(cpu))
7197 phba->sli4_hba.num_online_cpu = i;
7198 phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7199 phba->sli4_hba.curr_disp_cpu = 0;
7201 if (i < cfg_fcp_io_channel) {
7202 lpfc_printf_log(phba,
7204 "3188 Reducing IO channels to match number of "
7205 "online CPUs: from %d to %d\n",
7206 cfg_fcp_io_channel, i);
7207 cfg_fcp_io_channel = i;
7210 if (cfg_fcp_io_channel + fof_vectors >
7211 phba->sli4_hba.max_cfg_param.max_eq) {
7212 if (phba->sli4_hba.max_cfg_param.max_eq <
7213 LPFC_FCP_IO_CHAN_MIN) {
7214 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7215 "2574 Not enough EQs (%d) from the "
7216 "pci function for supporting FCP "
7218 phba->sli4_hba.max_cfg_param.max_eq,
7219 phba->cfg_fcp_io_channel);
7222 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7223 "2575 Reducing IO channels to match number of "
7224 "available EQs: from %d to %d\n",
7226 phba->sli4_hba.max_cfg_param.max_eq);
7227 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq -
7231 /* The actual number of FCP event queues adopted */
7232 phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
7234 /* Get EQ depth from module parameter, fake the default for now */
7235 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7236 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7238 /* Get CQ depth from module parameter, fake the default for now */
7239 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7240 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7248 * lpfc_sli4_queue_create - Create all the SLI4 queues
7249 * @phba: pointer to lpfc hba data structure.
7251 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
7252 * operation. For each SLI4 queue type, the parameters such as queue entry
7253 * count (queue depth) shall be taken from the module parameter. For now,
7254 * we just use some constant number as place holder.
7258 * -ENOMEM - No availble memory
7259 * -EIO - The mailbox failed to complete successfully.
7262 lpfc_sli4_queue_create(struct lpfc_hba *phba)
7264 struct lpfc_queue *qdesc;
7268 * Create HBA Record arrays.
7270 if (!phba->cfg_fcp_io_channel)
7273 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
7274 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
7275 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
7276 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
7277 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
7278 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
7280 phba->sli4_hba.hba_eq = kzalloc((sizeof(struct lpfc_queue *) *
7281 phba->cfg_fcp_io_channel), GFP_KERNEL);
7282 if (!phba->sli4_hba.hba_eq) {
7283 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7284 "2576 Failed allocate memory for "
7285 "fast-path EQ record array\n");
7289 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
7290 phba->cfg_fcp_io_channel), GFP_KERNEL);
7291 if (!phba->sli4_hba.fcp_cq) {
7292 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7293 "2577 Failed allocate memory for fast-path "
7294 "CQ record array\n");
7298 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
7299 phba->cfg_fcp_io_channel), GFP_KERNEL);
7300 if (!phba->sli4_hba.fcp_wq) {
7301 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7302 "2578 Failed allocate memory for fast-path "
7303 "WQ record array\n");
7308 * Since the first EQ can have multiple CQs associated with it,
7309 * this array is used to quickly see if we have a FCP fast-path
7312 phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
7313 phba->cfg_fcp_io_channel), GFP_KERNEL);
7314 if (!phba->sli4_hba.fcp_cq_map) {
7315 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7316 "2545 Failed allocate memory for fast-path "
7322 * Create HBA Event Queues (EQs). The cfg_fcp_io_channel specifies
7323 * how many EQs to create.
7325 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7328 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
7329 phba->sli4_hba.eq_ecount);
7331 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7332 "0497 Failed allocate EQ (%d)\n", idx);
7335 phba->sli4_hba.hba_eq[idx] = qdesc;
7337 /* Create Fast Path FCP CQs */
7338 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7339 phba->sli4_hba.cq_ecount);
7341 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7342 "0499 Failed allocate fast-path FCP "
7346 phba->sli4_hba.fcp_cq[idx] = qdesc;
7348 /* Create Fast Path FCP WQs */
7349 if (phba->fcp_embed_io) {
7350 qdesc = lpfc_sli4_queue_alloc(phba,
7352 LPFC_WQE128_DEF_COUNT);
7354 qdesc = lpfc_sli4_queue_alloc(phba,
7355 phba->sli4_hba.wq_esize,
7356 phba->sli4_hba.wq_ecount);
7359 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7360 "0503 Failed allocate fast-path FCP "
7364 phba->sli4_hba.fcp_wq[idx] = qdesc;
7369 * Create Slow Path Completion Queues (CQs)
7372 /* Create slow-path Mailbox Command Complete Queue */
7373 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7374 phba->sli4_hba.cq_ecount);
7376 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7377 "0500 Failed allocate slow-path mailbox CQ\n");
7380 phba->sli4_hba.mbx_cq = qdesc;
7382 /* Create slow-path ELS Complete Queue */
7383 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7384 phba->sli4_hba.cq_ecount);
7386 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7387 "0501 Failed allocate slow-path ELS CQ\n");
7390 phba->sli4_hba.els_cq = qdesc;
7394 * Create Slow Path Work Queues (WQs)
7397 /* Create Mailbox Command Queue */
7399 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7400 phba->sli4_hba.mq_ecount);
7402 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7403 "0505 Failed allocate slow-path MQ\n");
7406 phba->sli4_hba.mbx_wq = qdesc;
7409 * Create ELS Work Queues
7412 /* Create slow-path ELS Work Queue */
7413 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7414 phba->sli4_hba.wq_ecount);
7416 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7417 "0504 Failed allocate slow-path ELS WQ\n");
7420 phba->sli4_hba.els_wq = qdesc;
7423 * Create Receive Queue (RQ)
7426 /* Create Receive Queue for header */
7427 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7428 phba->sli4_hba.rq_ecount);
7430 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7431 "0506 Failed allocate receive HRQ\n");
7434 phba->sli4_hba.hdr_rq = qdesc;
7436 /* Create Receive Queue for data */
7437 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7438 phba->sli4_hba.rq_ecount);
7440 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7441 "0507 Failed allocate receive DRQ\n");
7444 phba->sli4_hba.dat_rq = qdesc;
7446 /* Create the Queues needed for Flash Optimized Fabric operations */
7448 lpfc_fof_queue_create(phba);
7452 lpfc_sli4_queue_destroy(phba);
7457 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7458 * @phba: pointer to lpfc hba data structure.
7460 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7465 * -ENOMEM - No available memory
7466 * -EIO - The mailbox failed to complete successfully.
7469 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7474 lpfc_fof_queue_destroy(phba);
7476 if (phba->sli4_hba.hba_eq != NULL) {
7477 /* Release HBA event queue */
7478 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7479 if (phba->sli4_hba.hba_eq[idx] != NULL) {
7480 lpfc_sli4_queue_free(
7481 phba->sli4_hba.hba_eq[idx]);
7482 phba->sli4_hba.hba_eq[idx] = NULL;
7485 kfree(phba->sli4_hba.hba_eq);
7486 phba->sli4_hba.hba_eq = NULL;
7489 if (phba->sli4_hba.fcp_cq != NULL) {
7490 /* Release FCP completion queue */
7491 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7492 if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7493 lpfc_sli4_queue_free(
7494 phba->sli4_hba.fcp_cq[idx]);
7495 phba->sli4_hba.fcp_cq[idx] = NULL;
7498 kfree(phba->sli4_hba.fcp_cq);
7499 phba->sli4_hba.fcp_cq = NULL;
7502 if (phba->sli4_hba.fcp_wq != NULL) {
7503 /* Release FCP work queue */
7504 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7505 if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7506 lpfc_sli4_queue_free(
7507 phba->sli4_hba.fcp_wq[idx]);
7508 phba->sli4_hba.fcp_wq[idx] = NULL;
7511 kfree(phba->sli4_hba.fcp_wq);
7512 phba->sli4_hba.fcp_wq = NULL;
7515 /* Release FCP CQ mapping array */
7516 if (phba->sli4_hba.fcp_cq_map != NULL) {
7517 kfree(phba->sli4_hba.fcp_cq_map);
7518 phba->sli4_hba.fcp_cq_map = NULL;
7521 /* Release mailbox command work queue */
7522 if (phba->sli4_hba.mbx_wq != NULL) {
7523 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
7524 phba->sli4_hba.mbx_wq = NULL;
7527 /* Release ELS work queue */
7528 if (phba->sli4_hba.els_wq != NULL) {
7529 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7530 phba->sli4_hba.els_wq = NULL;
7533 /* Release unsolicited receive queue */
7534 if (phba->sli4_hba.hdr_rq != NULL) {
7535 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7536 phba->sli4_hba.hdr_rq = NULL;
7538 if (phba->sli4_hba.dat_rq != NULL) {
7539 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7540 phba->sli4_hba.dat_rq = NULL;
7543 /* Release ELS complete queue */
7544 if (phba->sli4_hba.els_cq != NULL) {
7545 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7546 phba->sli4_hba.els_cq = NULL;
7549 /* Release mailbox command complete queue */
7550 if (phba->sli4_hba.mbx_cq != NULL) {
7551 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7552 phba->sli4_hba.mbx_cq = NULL;
7559 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7560 * @phba: pointer to lpfc hba data structure.
7562 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7567 * -ENOMEM - No available memory
7568 * -EIO - The mailbox failed to complete successfully.
7571 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7573 struct lpfc_sli *psli = &phba->sli;
7574 struct lpfc_sli_ring *pring;
7576 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7577 int fcp_cq_index = 0;
7578 uint32_t shdr_status, shdr_add_status;
7579 union lpfc_sli4_cfg_shdr *shdr;
7580 LPFC_MBOXQ_t *mboxq;
7583 /* Check for dual-ULP support */
7584 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7586 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7587 "3249 Unable to allocate memory for "
7588 "QUERY_FW_CFG mailbox command\n");
7591 length = (sizeof(struct lpfc_mbx_query_fw_config) -
7592 sizeof(struct lpfc_sli4_cfg_mhdr));
7593 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7594 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
7595 length, LPFC_SLI4_MBX_EMBED);
7597 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7599 shdr = (union lpfc_sli4_cfg_shdr *)
7600 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7601 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7602 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7603 if (shdr_status || shdr_add_status || rc) {
7604 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7605 "3250 QUERY_FW_CFG mailbox failed with status "
7606 "x%x add_status x%x, mbx status x%x\n",
7607 shdr_status, shdr_add_status, rc);
7608 if (rc != MBX_TIMEOUT)
7609 mempool_free(mboxq, phba->mbox_mem_pool);
7614 phba->sli4_hba.fw_func_mode =
7615 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
7616 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
7617 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
7618 phba->sli4_hba.physical_port =
7619 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
7620 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7621 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
7622 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
7623 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
7625 if (rc != MBX_TIMEOUT)
7626 mempool_free(mboxq, phba->mbox_mem_pool);
7629 * Set up HBA Event Queues (EQs)
7632 /* Set up HBA event queue */
7633 if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7634 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7635 "3147 Fast-path EQs not allocated\n");
7639 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7640 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7641 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7642 "0522 Fast-path EQ (%d) not "
7643 "allocated\n", fcp_eqidx);
7645 goto out_destroy_hba_eq;
7647 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7648 (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7650 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7651 "0523 Failed setup of fast-path EQ "
7652 "(%d), rc = 0x%x\n", fcp_eqidx,
7654 goto out_destroy_hba_eq;
7656 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7657 "2584 HBA EQ setup: "
7658 "queue[%d]-id=%d\n", fcp_eqidx,
7659 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7662 /* Set up fast-path FCP Response Complete Queue */
7663 if (!phba->sli4_hba.fcp_cq) {
7664 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7665 "3148 Fast-path FCP CQ array not "
7668 goto out_destroy_hba_eq;
7671 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7672 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7673 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7674 "0526 Fast-path FCP CQ (%d) not "
7675 "allocated\n", fcp_cqidx);
7677 goto out_destroy_fcp_cq;
7679 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7680 phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7682 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7683 "0527 Failed setup of fast-path FCP "
7684 "CQ (%d), rc = 0x%x\n", fcp_cqidx,
7686 goto out_destroy_fcp_cq;
7689 /* Setup fcp_cq_map for fast lookup */
7690 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7691 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7693 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7694 "2588 FCP CQ setup: cq[%d]-id=%d, "
7695 "parent seq[%d]-id=%d\n",
7697 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7699 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7702 /* Set up fast-path FCP Work Queue */
7703 if (!phba->sli4_hba.fcp_wq) {
7704 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7705 "3149 Fast-path FCP WQ array not "
7708 goto out_destroy_fcp_cq;
7711 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7712 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7713 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7714 "0534 Fast-path FCP WQ (%d) not "
7715 "allocated\n", fcp_wqidx);
7717 goto out_destroy_fcp_wq;
7719 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7720 phba->sli4_hba.fcp_cq[fcp_wqidx],
7723 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7724 "0535 Failed setup of fast-path FCP "
7725 "WQ (%d), rc = 0x%x\n", fcp_wqidx,
7727 goto out_destroy_fcp_wq;
7730 /* Bind this WQ to the next FCP ring */
7731 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7732 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7733 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7735 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7736 "2591 FCP WQ setup: wq[%d]-id=%d, "
7737 "parent cq[%d]-id=%d\n",
7739 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7741 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7744 * Set up Complete Queues (CQs)
7747 /* Set up slow-path MBOX Complete Queue as the first CQ */
7748 if (!phba->sli4_hba.mbx_cq) {
7749 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7750 "0528 Mailbox CQ not allocated\n");
7752 goto out_destroy_fcp_wq;
7754 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7755 phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7757 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7758 "0529 Failed setup of slow-path mailbox CQ: "
7759 "rc = 0x%x\n", (uint32_t)rc);
7760 goto out_destroy_fcp_wq;
7762 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7763 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7764 phba->sli4_hba.mbx_cq->queue_id,
7765 phba->sli4_hba.hba_eq[0]->queue_id);
7767 /* Set up slow-path ELS Complete Queue */
7768 if (!phba->sli4_hba.els_cq) {
7769 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7770 "0530 ELS CQ not allocated\n");
7772 goto out_destroy_mbx_cq;
7774 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7775 phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7777 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7778 "0531 Failed setup of slow-path ELS CQ: "
7779 "rc = 0x%x\n", (uint32_t)rc);
7780 goto out_destroy_mbx_cq;
7782 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7783 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7784 phba->sli4_hba.els_cq->queue_id,
7785 phba->sli4_hba.hba_eq[0]->queue_id);
7788 * Set up all the Work Queues (WQs)
7791 /* Set up Mailbox Command Queue */
7792 if (!phba->sli4_hba.mbx_wq) {
7793 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7794 "0538 Slow-path MQ not allocated\n");
7796 goto out_destroy_els_cq;
7798 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7799 phba->sli4_hba.mbx_cq, LPFC_MBOX);
7801 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7802 "0539 Failed setup of slow-path MQ: "
7804 goto out_destroy_els_cq;
7806 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7807 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7808 phba->sli4_hba.mbx_wq->queue_id,
7809 phba->sli4_hba.mbx_cq->queue_id);
7811 /* Set up slow-path ELS Work Queue */
7812 if (!phba->sli4_hba.els_wq) {
7813 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7814 "0536 Slow-path ELS WQ not allocated\n");
7816 goto out_destroy_mbx_wq;
7818 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7819 phba->sli4_hba.els_cq, LPFC_ELS);
7821 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7822 "0537 Failed setup of slow-path ELS WQ: "
7823 "rc = 0x%x\n", (uint32_t)rc);
7824 goto out_destroy_mbx_wq;
7827 /* Bind this WQ to the ELS ring */
7828 pring = &psli->ring[LPFC_ELS_RING];
7829 pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7830 phba->sli4_hba.els_cq->pring = pring;
7832 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7833 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7834 phba->sli4_hba.els_wq->queue_id,
7835 phba->sli4_hba.els_cq->queue_id);
7838 * Create Receive Queue (RQ)
7840 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7841 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7842 "0540 Receive Queue not allocated\n");
7844 goto out_destroy_els_wq;
7847 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7848 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7850 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7851 phba->sli4_hba.els_cq, LPFC_USOL);
7853 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7854 "0541 Failed setup of Receive Queue: "
7855 "rc = 0x%x\n", (uint32_t)rc);
7856 goto out_destroy_fcp_wq;
7859 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7860 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7861 "parent cq-id=%d\n",
7862 phba->sli4_hba.hdr_rq->queue_id,
7863 phba->sli4_hba.dat_rq->queue_id,
7864 phba->sli4_hba.els_cq->queue_id);
7866 if (phba->cfg_fof) {
7867 rc = lpfc_fof_queue_setup(phba);
7869 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7870 "0549 Failed setup of FOF Queues: "
7872 goto out_destroy_els_rq;
7877 * Configure EQ delay multipier for interrupt coalescing using
7878 * MODIFY_EQ_DELAY for all EQs created, LPFC_MAX_EQ_DELAY at a time.
7880 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
7881 fcp_eqidx += LPFC_MAX_EQ_DELAY)
7882 lpfc_modify_fcp_eq_delay(phba, fcp_eqidx);
7886 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7888 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7890 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7892 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7894 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7896 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7897 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7899 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7900 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7902 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7903 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7909 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7910 * @phba: pointer to lpfc hba data structure.
7912 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7917 * -ENOMEM - No available memory
7918 * -EIO - The mailbox failed to complete successfully.
7921 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7925 /* Unset the queues created for Flash Optimized Fabric operations */
7927 lpfc_fof_queue_destroy(phba);
7928 /* Unset mailbox command work queue */
7929 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7930 /* Unset ELS work queue */
7931 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7932 /* Unset unsolicited receive queue */
7933 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7934 /* Unset FCP work queue */
7935 if (phba->sli4_hba.fcp_wq) {
7936 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7938 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7940 /* Unset mailbox command complete queue */
7941 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7942 /* Unset ELS complete queue */
7943 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7944 /* Unset FCP response complete queue */
7945 if (phba->sli4_hba.fcp_cq) {
7946 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7948 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7950 /* Unset fast-path event queue */
7951 if (phba->sli4_hba.hba_eq) {
7952 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7954 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
7959 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7960 * @phba: pointer to lpfc hba data structure.
7962 * This routine is invoked to allocate and set up a pool of completion queue
7963 * events. The body of the completion queue event is a completion queue entry
7964 * CQE. For now, this pool is used for the interrupt service routine to queue
7965 * the following HBA completion queue events for the worker thread to process:
7966 * - Mailbox asynchronous events
7967 * - Receive queue completion unsolicited events
7968 * Later, this can be used for all the slow-path events.
7972 * -ENOMEM - No available memory
7975 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7977 struct lpfc_cq_event *cq_event;
7980 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7981 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7983 goto out_pool_create_fail;
7984 list_add_tail(&cq_event->list,
7985 &phba->sli4_hba.sp_cqe_event_pool);
7989 out_pool_create_fail:
7990 lpfc_sli4_cq_event_pool_destroy(phba);
7995 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7996 * @phba: pointer to lpfc hba data structure.
7998 * This routine is invoked to free the pool of completion queue events at
7999 * driver unload time. Note that, it is the responsibility of the driver
8000 * cleanup routine to free all the outstanding completion-queue events
8001 * allocated from this pool back into the pool before invoking this routine
8002 * to destroy the pool.
8005 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
8007 struct lpfc_cq_event *cq_event, *next_cq_event;
8009 list_for_each_entry_safe(cq_event, next_cq_event,
8010 &phba->sli4_hba.sp_cqe_event_pool, list) {
8011 list_del(&cq_event->list);
8017 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
8018 * @phba: pointer to lpfc hba data structure.
8020 * This routine is the lock free version of the API invoked to allocate a
8021 * completion-queue event from the free pool.
8023 * Return: Pointer to the newly allocated completion-queue event if successful
8026 struct lpfc_cq_event *
8027 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
8029 struct lpfc_cq_event *cq_event = NULL;
8031 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
8032 struct lpfc_cq_event, list);
8037 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
8038 * @phba: pointer to lpfc hba data structure.
8040 * This routine is the lock version of the API invoked to allocate a
8041 * completion-queue event from the free pool.
8043 * Return: Pointer to the newly allocated completion-queue event if successful
8046 struct lpfc_cq_event *
8047 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
8049 struct lpfc_cq_event *cq_event;
8050 unsigned long iflags;
8052 spin_lock_irqsave(&phba->hbalock, iflags);
8053 cq_event = __lpfc_sli4_cq_event_alloc(phba);
8054 spin_unlock_irqrestore(&phba->hbalock, iflags);
8059 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
8060 * @phba: pointer to lpfc hba data structure.
8061 * @cq_event: pointer to the completion queue event to be freed.
8063 * This routine is the lock free version of the API invoked to release a
8064 * completion-queue event back into the free pool.
8067 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
8068 struct lpfc_cq_event *cq_event)
8070 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
8074 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
8075 * @phba: pointer to lpfc hba data structure.
8076 * @cq_event: pointer to the completion queue event to be freed.
8078 * This routine is the lock version of the API invoked to release a
8079 * completion-queue event back into the free pool.
8082 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
8083 struct lpfc_cq_event *cq_event)
8085 unsigned long iflags;
8086 spin_lock_irqsave(&phba->hbalock, iflags);
8087 __lpfc_sli4_cq_event_release(phba, cq_event);
8088 spin_unlock_irqrestore(&phba->hbalock, iflags);
8092 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
8093 * @phba: pointer to lpfc hba data structure.
8095 * This routine is to free all the pending completion-queue events to the
8096 * back into the free pool for device reset.
8099 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
8102 struct lpfc_cq_event *cqe;
8103 unsigned long iflags;
8105 /* Retrieve all the pending WCQEs from pending WCQE lists */
8106 spin_lock_irqsave(&phba->hbalock, iflags);
8107 /* Pending FCP XRI abort events */
8108 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
8110 /* Pending ELS XRI abort events */
8111 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
8113 /* Pending asynnc events */
8114 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
8116 spin_unlock_irqrestore(&phba->hbalock, iflags);
8118 while (!list_empty(&cqelist)) {
8119 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
8120 lpfc_sli4_cq_event_release(phba, cqe);
8125 * lpfc_pci_function_reset - Reset pci function.
8126 * @phba: pointer to lpfc hba data structure.
8128 * This routine is invoked to request a PCI function reset. It will destroys
8129 * all resources assigned to the PCI function which originates this request.
8133 * -ENOMEM - No available memory
8134 * -EIO - The mailbox failed to complete successfully.
8137 lpfc_pci_function_reset(struct lpfc_hba *phba)
8139 LPFC_MBOXQ_t *mboxq;
8140 uint32_t rc = 0, if_type;
8141 uint32_t shdr_status, shdr_add_status;
8143 uint32_t port_reset = 0;
8144 union lpfc_sli4_cfg_shdr *shdr;
8145 struct lpfc_register reg_data;
8148 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8150 case LPFC_SLI_INTF_IF_TYPE_0:
8151 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8155 "0494 Unable to allocate memory for "
8156 "issuing SLI_FUNCTION_RESET mailbox "
8161 /* Setup PCI function reset mailbox-ioctl command */
8162 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8163 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
8164 LPFC_SLI4_MBX_EMBED);
8165 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8166 shdr = (union lpfc_sli4_cfg_shdr *)
8167 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8168 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8169 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
8171 if (rc != MBX_TIMEOUT)
8172 mempool_free(mboxq, phba->mbox_mem_pool);
8173 if (shdr_status || shdr_add_status || rc) {
8174 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8175 "0495 SLI_FUNCTION_RESET mailbox "
8176 "failed with status x%x add_status x%x,"
8177 " mbx status x%x\n",
8178 shdr_status, shdr_add_status, rc);
8182 case LPFC_SLI_INTF_IF_TYPE_2:
8185 * Poll the Port Status Register and wait for RDY for
8186 * up to 30 seconds. If the port doesn't respond, treat
8189 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
8190 if (lpfc_readl(phba->sli4_hba.u.if_type2.
8191 STATUSregaddr, ®_data.word0)) {
8195 if (bf_get(lpfc_sliport_status_rdy, ®_data))
8200 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) {
8201 phba->work_status[0] = readl(
8202 phba->sli4_hba.u.if_type2.ERR1regaddr);
8203 phba->work_status[1] = readl(
8204 phba->sli4_hba.u.if_type2.ERR2regaddr);
8205 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8206 "2890 Port not ready, port status reg "
8207 "0x%x error 1=0x%x, error 2=0x%x\n",
8209 phba->work_status[0],
8210 phba->work_status[1]);
8217 * Reset the port now
8220 bf_set(lpfc_sliport_ctrl_end, ®_data,
8221 LPFC_SLIPORT_LITTLE_ENDIAN);
8222 bf_set(lpfc_sliport_ctrl_ip, ®_data,
8223 LPFC_SLIPORT_INIT_PORT);
8224 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
8227 pci_read_config_word(phba->pcidev,
8228 PCI_DEVICE_ID, &devid);
8233 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) {
8239 case LPFC_SLI_INTF_IF_TYPE_1:
8245 /* Catch the not-ready port failure after a port reset. */
8247 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8248 "3317 HBA not functional: IP Reset Failed "
8249 "try: echo fw_reset > board_mode\n");
8257 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
8258 * @phba: pointer to lpfc hba data structure.
8260 * This routine is invoked to set up the PCI device memory space for device
8261 * with SLI-4 interface spec.
8265 * other values - error
8268 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
8270 struct pci_dev *pdev;
8271 unsigned long bar0map_len, bar1map_len, bar2map_len;
8272 int error = -ENODEV;
8275 /* Obtain PCI device reference */
8279 pdev = phba->pcidev;
8281 /* Set the device DMA mask size */
8282 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
8283 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
8284 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
8285 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
8291 * The BARs and register set definitions and offset locations are
8292 * dependent on the if_type.
8294 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
8295 &phba->sli4_hba.sli_intf.word0)) {
8299 /* There is no SLI3 failback for SLI4 devices. */
8300 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
8301 LPFC_SLI_INTF_VALID) {
8302 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8303 "2894 SLI_INTF reg contents invalid "
8304 "sli_intf reg 0x%x\n",
8305 phba->sli4_hba.sli_intf.word0);
8309 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8311 * Get the bus address of SLI4 device Bar regions and the
8312 * number of bytes required by each mapping. The mapping of the
8313 * particular PCI BARs regions is dependent on the type of
8316 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
8317 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
8318 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
8321 * Map SLI4 PCI Config Space Register base to a kernel virtual
8324 phba->sli4_hba.conf_regs_memmap_p =
8325 ioremap(phba->pci_bar0_map, bar0map_len);
8326 if (!phba->sli4_hba.conf_regs_memmap_p) {
8327 dev_printk(KERN_ERR, &pdev->dev,
8328 "ioremap failed for SLI4 PCI config "
8332 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
8333 /* Set up BAR0 PCI config space register memory map */
8334 lpfc_sli4_bar0_register_memmap(phba, if_type);
8336 phba->pci_bar0_map = pci_resource_start(pdev, 1);
8337 bar0map_len = pci_resource_len(pdev, 1);
8338 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8339 dev_printk(KERN_ERR, &pdev->dev,
8340 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
8343 phba->sli4_hba.conf_regs_memmap_p =
8344 ioremap(phba->pci_bar0_map, bar0map_len);
8345 if (!phba->sli4_hba.conf_regs_memmap_p) {
8346 dev_printk(KERN_ERR, &pdev->dev,
8347 "ioremap failed for SLI4 PCI config "
8351 lpfc_sli4_bar0_register_memmap(phba, if_type);
8354 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8355 (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
8357 * Map SLI4 if type 0 HBA Control Register base to a kernel
8358 * virtual address and setup the registers.
8360 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
8361 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
8362 phba->sli4_hba.ctrl_regs_memmap_p =
8363 ioremap(phba->pci_bar1_map, bar1map_len);
8364 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
8365 dev_printk(KERN_ERR, &pdev->dev,
8366 "ioremap failed for SLI4 HBA control registers.\n");
8367 goto out_iounmap_conf;
8369 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
8370 lpfc_sli4_bar1_register_memmap(phba);
8373 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8374 (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
8376 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
8377 * virtual address and setup the registers.
8379 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
8380 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
8381 phba->sli4_hba.drbl_regs_memmap_p =
8382 ioremap(phba->pci_bar2_map, bar2map_len);
8383 if (!phba->sli4_hba.drbl_regs_memmap_p) {
8384 dev_printk(KERN_ERR, &pdev->dev,
8385 "ioremap failed for SLI4 HBA doorbell registers.\n");
8386 goto out_iounmap_ctrl;
8388 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
8389 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
8391 goto out_iounmap_all;
8397 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8399 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8401 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8407 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
8408 * @phba: pointer to lpfc hba data structure.
8410 * This routine is invoked to unset the PCI device memory space for device
8411 * with SLI-4 interface spec.
8414 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
8417 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8420 case LPFC_SLI_INTF_IF_TYPE_0:
8421 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8422 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8423 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8425 case LPFC_SLI_INTF_IF_TYPE_2:
8426 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8428 case LPFC_SLI_INTF_IF_TYPE_1:
8430 dev_printk(KERN_ERR, &phba->pcidev->dev,
8431 "FATAL - unsupported SLI4 interface type - %d\n",
8438 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
8439 * @phba: pointer to lpfc hba data structure.
8441 * This routine is invoked to enable the MSI-X interrupt vectors to device
8442 * with SLI-3 interface specs. The kernel function pci_enable_msix_exact()
8443 * is called to enable the MSI-X vectors. Note that pci_enable_msix_exact(),
8444 * once invoked, enables either all or nothing, depending on the current
8445 * availability of PCI vector resources. The device driver is responsible
8446 * for calling the individual request_irq() to register each MSI-X vector
8447 * with a interrupt handler, which is done in this function. Note that
8448 * later when device is unloading, the driver should always call free_irq()
8449 * on all MSI-X vectors it has done request_irq() on before calling
8450 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8451 * will be left with MSI-X enabled and leaks its vectors.
8455 * other values - error
8458 lpfc_sli_enable_msix(struct lpfc_hba *phba)
8463 /* Set up MSI-X multi-message vectors */
8464 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8465 phba->msix_entries[i].entry = i;
8467 /* Configure MSI-X capability structure */
8468 rc = pci_enable_msix_exact(phba->pcidev, phba->msix_entries,
8471 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8472 "0420 PCI enable MSI-X failed (%d)\n", rc);
8475 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8476 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8477 "0477 MSI-X entry[%d]: vector=x%x "
8479 phba->msix_entries[i].vector,
8480 phba->msix_entries[i].entry);
8482 * Assign MSI-X vectors to interrupt handlers
8485 /* vector-0 is associated to slow-path handler */
8486 rc = request_irq(phba->msix_entries[0].vector,
8487 &lpfc_sli_sp_intr_handler, 0,
8488 LPFC_SP_DRIVER_HANDLER_NAME, phba);
8490 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8491 "0421 MSI-X slow-path request_irq failed "
8496 /* vector-1 is associated to fast-path handler */
8497 rc = request_irq(phba->msix_entries[1].vector,
8498 &lpfc_sli_fp_intr_handler, 0,
8499 LPFC_FP_DRIVER_HANDLER_NAME, phba);
8502 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8503 "0429 MSI-X fast-path request_irq failed "
8509 * Configure HBA MSI-X attention conditions to messages
8511 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8515 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8516 "0474 Unable to allocate memory for issuing "
8517 "MBOX_CONFIG_MSI command\n");
8520 rc = lpfc_config_msi(phba, pmb);
8523 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8524 if (rc != MBX_SUCCESS) {
8525 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8526 "0351 Config MSI mailbox command failed, "
8527 "mbxCmd x%x, mbxStatus x%x\n",
8528 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8532 /* Free memory allocated for mailbox command */
8533 mempool_free(pmb, phba->mbox_mem_pool);
8537 /* Free memory allocated for mailbox command */
8538 mempool_free(pmb, phba->mbox_mem_pool);
8541 /* free the irq already requested */
8542 free_irq(phba->msix_entries[1].vector, phba);
8545 /* free the irq already requested */
8546 free_irq(phba->msix_entries[0].vector, phba);
8549 /* Unconfigure MSI-X capability structure */
8550 pci_disable_msix(phba->pcidev);
8557 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8558 * @phba: pointer to lpfc hba data structure.
8560 * This routine is invoked to release the MSI-X vectors and then disable the
8561 * MSI-X interrupt mode to device with SLI-3 interface spec.
8564 lpfc_sli_disable_msix(struct lpfc_hba *phba)
8568 /* Free up MSI-X multi-message vectors */
8569 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8570 free_irq(phba->msix_entries[i].vector, phba);
8572 pci_disable_msix(phba->pcidev);
8578 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8579 * @phba: pointer to lpfc hba data structure.
8581 * This routine is invoked to enable the MSI interrupt mode to device with
8582 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8583 * enable the MSI vector. The device driver is responsible for calling the
8584 * request_irq() to register MSI vector with a interrupt the handler, which
8585 * is done in this function.
8589 * other values - error
8592 lpfc_sli_enable_msi(struct lpfc_hba *phba)
8596 rc = pci_enable_msi(phba->pcidev);
8598 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8599 "0462 PCI enable MSI mode success.\n");
8601 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8602 "0471 PCI enable MSI mode failed (%d)\n", rc);
8606 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8607 0, LPFC_DRIVER_NAME, phba);
8609 pci_disable_msi(phba->pcidev);
8610 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8611 "0478 MSI request_irq failed (%d)\n", rc);
8617 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8618 * @phba: pointer to lpfc hba data structure.
8620 * This routine is invoked to disable the MSI interrupt mode to device with
8621 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8622 * done request_irq() on before calling pci_disable_msi(). Failure to do so
8623 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8627 lpfc_sli_disable_msi(struct lpfc_hba *phba)
8629 free_irq(phba->pcidev->irq, phba);
8630 pci_disable_msi(phba->pcidev);
8635 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8636 * @phba: pointer to lpfc hba data structure.
8638 * This routine is invoked to enable device interrupt and associate driver's
8639 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8640 * spec. Depends on the interrupt mode configured to the driver, the driver
8641 * will try to fallback from the configured interrupt mode to an interrupt
8642 * mode which is supported by the platform, kernel, and device in the order
8644 * MSI-X -> MSI -> IRQ.
8648 * other values - error
8651 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8653 uint32_t intr_mode = LPFC_INTR_ERROR;
8656 if (cfg_mode == 2) {
8657 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8658 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8660 /* Now, try to enable MSI-X interrupt mode */
8661 retval = lpfc_sli_enable_msix(phba);
8663 /* Indicate initialization to MSI-X mode */
8664 phba->intr_type = MSIX;
8670 /* Fallback to MSI if MSI-X initialization failed */
8671 if (cfg_mode >= 1 && phba->intr_type == NONE) {
8672 retval = lpfc_sli_enable_msi(phba);
8674 /* Indicate initialization to MSI mode */
8675 phba->intr_type = MSI;
8680 /* Fallback to INTx if both MSI-X/MSI initalization failed */
8681 if (phba->intr_type == NONE) {
8682 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8683 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8685 /* Indicate initialization to INTx mode */
8686 phba->intr_type = INTx;
8694 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8695 * @phba: pointer to lpfc hba data structure.
8697 * This routine is invoked to disable device interrupt and disassociate the
8698 * driver's interrupt handler(s) from interrupt vector(s) to device with
8699 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8700 * release the interrupt vector(s) for the message signaled interrupt.
8703 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8705 /* Disable the currently initialized interrupt mode */
8706 if (phba->intr_type == MSIX)
8707 lpfc_sli_disable_msix(phba);
8708 else if (phba->intr_type == MSI)
8709 lpfc_sli_disable_msi(phba);
8710 else if (phba->intr_type == INTx)
8711 free_irq(phba->pcidev->irq, phba);
8713 /* Reset interrupt management states */
8714 phba->intr_type = NONE;
8715 phba->sli.slistat.sli_intr = 0;
8721 * lpfc_find_next_cpu - Find next available CPU that matches the phys_id
8722 * @phba: pointer to lpfc hba data structure.
8724 * Find next available CPU to use for IRQ to CPU affinity.
8727 lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id)
8729 struct lpfc_vector_map_info *cpup;
8732 cpup = phba->sli4_hba.cpu_map;
8733 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8734 /* CPU must be online */
8735 if (cpu_online(cpu)) {
8736 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8737 (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) &&
8738 (cpup->phys_id == phys_id)) {
8746 * If we get here, we have used ALL CPUs for the specific
8747 * phys_id. Now we need to clear out lpfc_used_cpu and start
8751 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8752 if (lpfc_used_cpu[cpu] == phys_id)
8753 lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
8756 cpup = phba->sli4_hba.cpu_map;
8757 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8758 /* CPU must be online */
8759 if (cpu_online(cpu)) {
8760 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8761 (cpup->phys_id == phys_id)) {
8767 return LPFC_VECTOR_MAP_EMPTY;
8771 * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors
8772 * @phba: pointer to lpfc hba data structure.
8773 * @vectors: number of HBA vectors
8775 * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector
8776 * affinization across multple physical CPUs (numa nodes).
8777 * In addition, this routine will assign an IO channel for each CPU
8778 * to use when issuing I/Os.
8781 lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors)
8783 int i, idx, saved_chann, used_chann, cpu, phys_id;
8784 int max_phys_id, min_phys_id;
8785 int num_io_channel, first_cpu, chan;
8786 struct lpfc_vector_map_info *cpup;
8788 struct cpuinfo_x86 *cpuinfo;
8790 uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1];
8792 /* If there is no mapping, just return */
8793 if (!phba->cfg_fcp_cpu_map)
8796 /* Init cpu_map array */
8797 memset(phba->sli4_hba.cpu_map, 0xff,
8798 (sizeof(struct lpfc_vector_map_info) *
8799 phba->sli4_hba.num_present_cpu));
8805 first_cpu = LPFC_VECTOR_MAP_EMPTY;
8807 /* Update CPU map with physical id and core id of each CPU */
8808 cpup = phba->sli4_hba.cpu_map;
8809 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8811 cpuinfo = &cpu_data(cpu);
8812 cpup->phys_id = cpuinfo->phys_proc_id;
8813 cpup->core_id = cpuinfo->cpu_core_id;
8815 /* No distinction between CPUs for other platforms */
8820 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8821 "3328 CPU physid %d coreid %d\n",
8822 cpup->phys_id, cpup->core_id);
8824 if (cpup->phys_id > max_phys_id)
8825 max_phys_id = cpup->phys_id;
8826 if (cpup->phys_id < min_phys_id)
8827 min_phys_id = cpup->phys_id;
8831 phys_id = min_phys_id;
8832 /* Now associate the HBA vectors with specific CPUs */
8833 for (idx = 0; idx < vectors; idx++) {
8834 cpup = phba->sli4_hba.cpu_map;
8835 cpu = lpfc_find_next_cpu(phba, phys_id);
8836 if (cpu == LPFC_VECTOR_MAP_EMPTY) {
8838 /* Try for all phys_id's */
8839 for (i = 1; i < max_phys_id; i++) {
8841 if (phys_id > max_phys_id)
8842 phys_id = min_phys_id;
8843 cpu = lpfc_find_next_cpu(phba, phys_id);
8844 if (cpu == LPFC_VECTOR_MAP_EMPTY)
8849 /* Use round robin for scheduling */
8850 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN;
8852 cpup = phba->sli4_hba.cpu_map;
8853 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
8854 cpup->channel_id = chan;
8857 if (chan >= phba->cfg_fcp_io_channel)
8861 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8862 "3329 Cannot set affinity:"
8863 "Error mapping vector %d (%d)\n",
8869 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP)
8870 lpfc_used_cpu[cpu] = phys_id;
8872 /* Associate vector with selected CPU */
8873 cpup->irq = phba->sli4_hba.msix_entries[idx].vector;
8875 /* Associate IO channel with selected CPU */
8876 cpup->channel_id = idx;
8879 if (first_cpu == LPFC_VECTOR_MAP_EMPTY)
8882 /* Now affinitize to the selected CPU */
8883 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx].
8884 vector, get_cpu_mask(cpu));
8886 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8887 "3330 Set Affinity: CPU %d channel %d "
8889 cpu, cpup->channel_id,
8890 phba->sli4_hba.msix_entries[idx].vector, i);
8892 /* Spread vector mapping across multple physical CPU nodes */
8894 if (phys_id > max_phys_id)
8895 phys_id = min_phys_id;
8899 * Finally fill in the IO channel for any remaining CPUs.
8900 * At this point, all IO channels have been assigned to a specific
8901 * MSIx vector, mapped to a specific CPU.
8902 * Base the remaining IO channel assigned, to IO channels already
8903 * assigned to other CPUs on the same phys_id.
8905 for (i = min_phys_id; i <= max_phys_id; i++) {
8907 * If there are no io channels already mapped to
8908 * this phys_id, just round robin thru the io_channels.
8909 * Setup chann[] for round robin.
8911 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8918 * First build a list of IO channels already assigned
8919 * to this phys_id before reassigning the same IO
8920 * channels to the remaining CPUs.
8922 cpup = phba->sli4_hba.cpu_map;
8925 for (idx = 0; idx < phba->sli4_hba.num_present_cpu;
8927 if (cpup->phys_id == i) {
8929 * Save any IO channels that are
8930 * already mapped to this phys_id.
8932 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
8934 LPFC_FCP_IO_CHAN_MAX) {
8935 chann[saved_chann] =
8942 /* See if we are using round-robin */
8943 if (saved_chann == 0)
8945 phba->cfg_fcp_io_channel;
8947 /* Associate next IO channel with CPU */
8948 cpup->channel_id = chann[used_chann];
8951 if (used_chann == saved_chann)
8954 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8955 "3331 Set IO_CHANN "
8956 "CPU %d channel %d\n",
8957 idx, cpup->channel_id);
8961 if (cpu >= phba->sli4_hba.num_present_cpu) {
8962 cpup = phba->sli4_hba.cpu_map;
8970 if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) {
8971 cpup = phba->sli4_hba.cpu_map;
8972 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) {
8973 if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) {
8974 cpup->channel_id = 0;
8977 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8978 "3332 Assign IO_CHANN "
8979 "CPU %d channel %d\n",
8980 idx, cpup->channel_id);
8987 if (num_io_channel != phba->sli4_hba.num_present_cpu)
8988 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8989 "3333 Set affinity mismatch:"
8990 "%d chann != %d cpus: %d vectors\n",
8991 num_io_channel, phba->sli4_hba.num_present_cpu,
8994 /* Enable using cpu affinity for scheduling */
8995 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU;
9001 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
9002 * @phba: pointer to lpfc hba data structure.
9004 * This routine is invoked to enable the MSI-X interrupt vectors to device
9005 * with SLI-4 interface spec. The kernel function pci_enable_msix_range()
9006 * is called to enable the MSI-X vectors. The device driver is responsible
9007 * for calling the individual request_irq() to register each MSI-X vector
9008 * with a interrupt handler, which is done in this function. Note that
9009 * later when device is unloading, the driver should always call free_irq()
9010 * on all MSI-X vectors it has done request_irq() on before calling
9011 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
9012 * will be left with MSI-X enabled and leaks its vectors.
9016 * other values - error
9019 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
9021 int vectors, rc, index;
9023 /* Set up MSI-X multi-message vectors */
9024 for (index = 0; index < phba->cfg_fcp_io_channel; index++)
9025 phba->sli4_hba.msix_entries[index].entry = index;
9027 /* Configure MSI-X capability structure */
9028 vectors = phba->cfg_fcp_io_channel;
9029 if (phba->cfg_fof) {
9030 phba->sli4_hba.msix_entries[index].entry = index;
9033 rc = pci_enable_msix_range(phba->pcidev, phba->sli4_hba.msix_entries,
9036 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9037 "0484 PCI enable MSI-X failed (%d)\n", rc);
9042 /* Log MSI-X vector assignment */
9043 for (index = 0; index < vectors; index++)
9044 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9045 "0489 MSI-X entry[%d]: vector=x%x "
9046 "message=%d\n", index,
9047 phba->sli4_hba.msix_entries[index].vector,
9048 phba->sli4_hba.msix_entries[index].entry);
9050 /* Assign MSI-X vectors to interrupt handlers */
9051 for (index = 0; index < vectors; index++) {
9052 memset(&phba->sli4_hba.handler_name[index], 0, 16);
9053 snprintf((char *)&phba->sli4_hba.handler_name[index],
9054 LPFC_SLI4_HANDLER_NAME_SZ,
9055 LPFC_DRIVER_HANDLER_NAME"%d", index);
9057 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9058 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9059 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
9060 if (phba->cfg_fof && (index == (vectors - 1)))
9062 phba->sli4_hba.msix_entries[index].vector,
9063 &lpfc_sli4_fof_intr_handler, 0,
9064 (char *)&phba->sli4_hba.handler_name[index],
9065 &phba->sli4_hba.fcp_eq_hdl[index]);
9068 phba->sli4_hba.msix_entries[index].vector,
9069 &lpfc_sli4_hba_intr_handler, 0,
9070 (char *)&phba->sli4_hba.handler_name[index],
9071 &phba->sli4_hba.fcp_eq_hdl[index]);
9073 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9074 "0486 MSI-X fast-path (%d) "
9075 "request_irq failed (%d)\n", index, rc);
9083 if (vectors != phba->cfg_fcp_io_channel) {
9084 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9085 "3238 Reducing IO channels to match number of "
9086 "MSI-X vectors, requested %d got %d\n",
9087 phba->cfg_fcp_io_channel, vectors);
9088 phba->cfg_fcp_io_channel = vectors;
9091 if (!shost_use_blk_mq(lpfc_shost_from_vport(phba->pport)))
9092 lpfc_sli4_set_affinity(phba, vectors);
9096 /* free the irq already requested */
9097 for (--index; index >= 0; index--) {
9098 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
9100 free_irq(phba->sli4_hba.msix_entries[index].vector,
9101 &phba->sli4_hba.fcp_eq_hdl[index]);
9104 /* Unconfigure MSI-X capability structure */
9105 pci_disable_msix(phba->pcidev);
9112 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
9113 * @phba: pointer to lpfc hba data structure.
9115 * This routine is invoked to release the MSI-X vectors and then disable the
9116 * MSI-X interrupt mode to device with SLI-4 interface spec.
9119 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
9123 /* Free up MSI-X multi-message vectors */
9124 for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9125 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
9127 free_irq(phba->sli4_hba.msix_entries[index].vector,
9128 &phba->sli4_hba.fcp_eq_hdl[index]);
9130 if (phba->cfg_fof) {
9131 free_irq(phba->sli4_hba.msix_entries[index].vector,
9132 &phba->sli4_hba.fcp_eq_hdl[index]);
9135 pci_disable_msix(phba->pcidev);
9141 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
9142 * @phba: pointer to lpfc hba data structure.
9144 * This routine is invoked to enable the MSI interrupt mode to device with
9145 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
9146 * to enable the MSI vector. The device driver is responsible for calling
9147 * the request_irq() to register MSI vector with a interrupt the handler,
9148 * which is done in this function.
9152 * other values - error
9155 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
9159 rc = pci_enable_msi(phba->pcidev);
9161 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9162 "0487 PCI enable MSI mode success.\n");
9164 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9165 "0488 PCI enable MSI mode failed (%d)\n", rc);
9169 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9170 0, LPFC_DRIVER_NAME, phba);
9172 pci_disable_msi(phba->pcidev);
9173 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9174 "0490 MSI request_irq failed (%d)\n", rc);
9178 for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9179 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9180 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9183 if (phba->cfg_fof) {
9184 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9185 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9191 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
9192 * @phba: pointer to lpfc hba data structure.
9194 * This routine is invoked to disable the MSI interrupt mode to device with
9195 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
9196 * done request_irq() on before calling pci_disable_msi(). Failure to do so
9197 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
9201 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
9203 free_irq(phba->pcidev->irq, phba);
9204 pci_disable_msi(phba->pcidev);
9209 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
9210 * @phba: pointer to lpfc hba data structure.
9212 * This routine is invoked to enable device interrupt and associate driver's
9213 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
9214 * interface spec. Depends on the interrupt mode configured to the driver,
9215 * the driver will try to fallback from the configured interrupt mode to an
9216 * interrupt mode which is supported by the platform, kernel, and device in
9218 * MSI-X -> MSI -> IRQ.
9222 * other values - error
9225 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9227 uint32_t intr_mode = LPFC_INTR_ERROR;
9230 if (cfg_mode == 2) {
9231 /* Preparation before conf_msi mbox cmd */
9234 /* Now, try to enable MSI-X interrupt mode */
9235 retval = lpfc_sli4_enable_msix(phba);
9237 /* Indicate initialization to MSI-X mode */
9238 phba->intr_type = MSIX;
9244 /* Fallback to MSI if MSI-X initialization failed */
9245 if (cfg_mode >= 1 && phba->intr_type == NONE) {
9246 retval = lpfc_sli4_enable_msi(phba);
9248 /* Indicate initialization to MSI mode */
9249 phba->intr_type = MSI;
9254 /* Fallback to INTx if both MSI-X/MSI initalization failed */
9255 if (phba->intr_type == NONE) {
9256 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9257 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9259 /* Indicate initialization to INTx mode */
9260 phba->intr_type = INTx;
9262 for (index = 0; index < phba->cfg_fcp_io_channel;
9264 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9265 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9266 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9269 if (phba->cfg_fof) {
9270 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9271 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9272 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9281 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
9282 * @phba: pointer to lpfc hba data structure.
9284 * This routine is invoked to disable device interrupt and disassociate
9285 * the driver's interrupt handler(s) from interrupt vector(s) to device
9286 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
9287 * will release the interrupt vector(s) for the message signaled interrupt.
9290 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
9292 /* Disable the currently initialized interrupt mode */
9293 if (phba->intr_type == MSIX)
9294 lpfc_sli4_disable_msix(phba);
9295 else if (phba->intr_type == MSI)
9296 lpfc_sli4_disable_msi(phba);
9297 else if (phba->intr_type == INTx)
9298 free_irq(phba->pcidev->irq, phba);
9300 /* Reset interrupt management states */
9301 phba->intr_type = NONE;
9302 phba->sli.slistat.sli_intr = 0;
9308 * lpfc_unset_hba - Unset SLI3 hba device initialization
9309 * @phba: pointer to lpfc hba data structure.
9311 * This routine is invoked to unset the HBA device initialization steps to
9312 * a device with SLI-3 interface spec.
9315 lpfc_unset_hba(struct lpfc_hba *phba)
9317 struct lpfc_vport *vport = phba->pport;
9318 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
9320 spin_lock_irq(shost->host_lock);
9321 vport->load_flag |= FC_UNLOADING;
9322 spin_unlock_irq(shost->host_lock);
9324 kfree(phba->vpi_bmask);
9325 kfree(phba->vpi_ids);
9327 lpfc_stop_hba_timers(phba);
9329 phba->pport->work_port_events = 0;
9331 lpfc_sli_hba_down(phba);
9333 lpfc_sli_brdrestart(phba);
9335 lpfc_sli_disable_intr(phba);
9341 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
9342 * @phba: Pointer to HBA context object.
9344 * This function is called in the SLI4 code path to wait for completion
9345 * of device's XRIs exchange busy. It will check the XRI exchange busy
9346 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
9347 * that, it will check the XRI exchange busy on outstanding FCP and ELS
9348 * I/Os every 30 seconds, log error message, and wait forever. Only when
9349 * all XRI exchange busy complete, the driver unload shall proceed with
9350 * invoking the function reset ioctl mailbox command to the CNA and the
9351 * the rest of the driver unload resource release.
9354 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
9357 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9358 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9360 while (!fcp_xri_cmpl || !els_xri_cmpl) {
9361 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
9363 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9364 "2877 FCP XRI exchange busy "
9365 "wait time: %d seconds.\n",
9368 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9369 "2878 ELS XRI exchange busy "
9370 "wait time: %d seconds.\n",
9372 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
9373 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
9375 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
9376 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
9379 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9381 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9386 * lpfc_sli4_hba_unset - Unset the fcoe hba
9387 * @phba: Pointer to HBA context object.
9389 * This function is called in the SLI4 code path to reset the HBA's FCoE
9390 * function. The caller is not required to hold any lock. This routine
9391 * issues PCI function reset mailbox command to reset the FCoE function.
9392 * At the end of the function, it calls lpfc_hba_down_post function to
9393 * free any pending commands.
9396 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
9399 LPFC_MBOXQ_t *mboxq;
9400 struct pci_dev *pdev = phba->pcidev;
9402 lpfc_stop_hba_timers(phba);
9403 phba->sli4_hba.intr_enable = 0;
9406 * Gracefully wait out the potential current outstanding asynchronous
9410 /* First, block any pending async mailbox command from posted */
9411 spin_lock_irq(&phba->hbalock);
9412 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
9413 spin_unlock_irq(&phba->hbalock);
9414 /* Now, trying to wait it out if we can */
9415 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9417 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
9420 /* Forcefully release the outstanding mailbox command if timed out */
9421 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9422 spin_lock_irq(&phba->hbalock);
9423 mboxq = phba->sli.mbox_active;
9424 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
9425 __lpfc_mbox_cmpl_put(phba, mboxq);
9426 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9427 phba->sli.mbox_active = NULL;
9428 spin_unlock_irq(&phba->hbalock);
9431 /* Abort all iocbs associated with the hba */
9432 lpfc_sli_hba_iocb_abort(phba);
9434 /* Wait for completion of device XRI exchange busy */
9435 lpfc_sli4_xri_exchange_busy_wait(phba);
9437 /* Disable PCI subsystem interrupt */
9438 lpfc_sli4_disable_intr(phba);
9440 /* Disable SR-IOV if enabled */
9441 if (phba->cfg_sriov_nr_virtfn)
9442 pci_disable_sriov(pdev);
9444 /* Stop kthread signal shall trigger work_done one more time */
9445 kthread_stop(phba->worker_thread);
9447 /* Reset SLI4 HBA FCoE function */
9448 lpfc_pci_function_reset(phba);
9449 lpfc_sli4_queue_destroy(phba);
9451 /* Stop the SLI4 device port */
9452 phba->pport->work_port_events = 0;
9456 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
9457 * @phba: Pointer to HBA context object.
9458 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9460 * This function is called in the SLI4 code path to read the port's
9461 * sli4 capabilities.
9463 * This function may be be called from any context that can block-wait
9464 * for the completion. The expectation is that this routine is called
9465 * typically from probe_one or from the online routine.
9468 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9471 struct lpfc_mqe *mqe;
9472 struct lpfc_pc_sli4_params *sli4_params;
9476 mqe = &mboxq->u.mqe;
9478 /* Read the port's SLI4 Parameters port capabilities */
9479 lpfc_pc_sli4_params(mboxq);
9480 if (!phba->sli4_hba.intr_enable)
9481 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9483 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9484 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9490 sli4_params = &phba->sli4_hba.pc_sli4_params;
9491 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
9492 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
9493 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
9494 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
9495 &mqe->un.sli4_params);
9496 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
9497 &mqe->un.sli4_params);
9498 sli4_params->proto_types = mqe->un.sli4_params.word3;
9499 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
9500 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
9501 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
9502 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
9503 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
9504 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
9505 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
9506 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
9507 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
9508 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
9509 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
9510 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
9511 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
9512 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
9513 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
9514 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
9515 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
9516 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
9517 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
9518 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
9520 /* Make sure that sge_supp_len can be handled by the driver */
9521 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9522 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9528 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
9529 * @phba: Pointer to HBA context object.
9530 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9532 * This function is called in the SLI4 code path to read the port's
9533 * sli4 capabilities.
9535 * This function may be be called from any context that can block-wait
9536 * for the completion. The expectation is that this routine is called
9537 * typically from probe_one or from the online routine.
9540 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9543 struct lpfc_mqe *mqe = &mboxq->u.mqe;
9544 struct lpfc_pc_sli4_params *sli4_params;
9547 struct lpfc_sli4_parameters *mbx_sli4_parameters;
9550 * By default, the driver assumes the SLI4 port requires RPI
9551 * header postings. The SLI4_PARAM response will correct this
9554 phba->sli4_hba.rpi_hdrs_in_use = 1;
9556 /* Read the port's SLI4 Config Parameters */
9557 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
9558 sizeof(struct lpfc_sli4_cfg_mhdr));
9559 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9560 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
9561 length, LPFC_SLI4_MBX_EMBED);
9562 if (!phba->sli4_hba.intr_enable)
9563 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9565 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9566 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9570 sli4_params = &phba->sli4_hba.pc_sli4_params;
9571 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
9572 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
9573 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
9574 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
9575 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
9576 mbx_sli4_parameters);
9577 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
9578 mbx_sli4_parameters);
9579 if (bf_get(cfg_phwq, mbx_sli4_parameters))
9580 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
9582 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
9583 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
9584 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
9585 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
9586 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
9587 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
9588 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
9589 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
9590 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
9591 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
9592 mbx_sli4_parameters);
9593 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
9594 mbx_sli4_parameters);
9595 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
9596 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
9598 /* Make sure that sge_supp_len can be handled by the driver */
9599 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9600 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9603 * Issue IOs with CDB embedded in WQE to minimized the number
9604 * of DMAs the firmware has to do. Setting this to 1 also forces
9605 * the driver to use 128 bytes WQEs for FCP IOs.
9607 if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
9608 phba->fcp_embed_io = 1;
9610 phba->fcp_embed_io = 0;
9613 * Check if the SLI port supports MDS Diagnostics
9615 if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
9616 phba->mds_diags_support = 1;
9618 phba->mds_diags_support = 0;
9623 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
9624 * @pdev: pointer to PCI device
9625 * @pid: pointer to PCI device identifier
9627 * This routine is to be called to attach a device with SLI-3 interface spec
9628 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9629 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9630 * information of the device and driver to see if the driver state that it can
9631 * support this kind of device. If the match is successful, the driver core
9632 * invokes this routine. If this routine determines it can claim the HBA, it
9633 * does all the initialization that it needs to do to handle the HBA properly.
9636 * 0 - driver can claim the device
9637 * negative value - driver can not claim the device
9640 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
9642 struct lpfc_hba *phba;
9643 struct lpfc_vport *vport = NULL;
9644 struct Scsi_Host *shost = NULL;
9646 uint32_t cfg_mode, intr_mode;
9648 /* Allocate memory for HBA structure */
9649 phba = lpfc_hba_alloc(pdev);
9653 /* Perform generic PCI device enabling operation */
9654 error = lpfc_enable_pci_dev(phba);
9658 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
9659 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
9661 goto out_disable_pci_dev;
9663 /* Set up SLI-3 specific device PCI memory space */
9664 error = lpfc_sli_pci_mem_setup(phba);
9666 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9667 "1402 Failed to set up pci memory space.\n");
9668 goto out_disable_pci_dev;
9671 /* Set up phase-1 common device driver resources */
9672 error = lpfc_setup_driver_resource_phase1(phba);
9674 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9675 "1403 Failed to set up driver resource.\n");
9676 goto out_unset_pci_mem_s3;
9679 /* Set up SLI-3 specific device driver resources */
9680 error = lpfc_sli_driver_resource_setup(phba);
9682 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9683 "1404 Failed to set up driver resource.\n");
9684 goto out_unset_pci_mem_s3;
9687 /* Initialize and populate the iocb list per host */
9688 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
9690 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9691 "1405 Failed to initialize iocb list.\n");
9692 goto out_unset_driver_resource_s3;
9695 /* Set up common device driver resources */
9696 error = lpfc_setup_driver_resource_phase2(phba);
9698 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9699 "1406 Failed to set up driver resource.\n");
9700 goto out_free_iocb_list;
9703 /* Get the default values for Model Name and Description */
9704 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9706 /* Create SCSI host to the physical port */
9707 error = lpfc_create_shost(phba);
9709 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9710 "1407 Failed to create scsi host.\n");
9711 goto out_unset_driver_resource;
9714 /* Configure sysfs attributes */
9715 vport = phba->pport;
9716 error = lpfc_alloc_sysfs_attr(vport);
9718 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9719 "1476 Failed to allocate sysfs attr\n");
9720 goto out_destroy_shost;
9723 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9724 /* Now, trying to enable interrupt and bring up the device */
9725 cfg_mode = phba->cfg_use_msi;
9727 /* Put device to a known state before enabling interrupt */
9728 lpfc_stop_port(phba);
9729 /* Configure and enable interrupt */
9730 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
9731 if (intr_mode == LPFC_INTR_ERROR) {
9732 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9733 "0431 Failed to enable interrupt.\n");
9735 goto out_free_sysfs_attr;
9737 /* SLI-3 HBA setup */
9738 if (lpfc_sli_hba_setup(phba)) {
9739 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9740 "1477 Failed to set up hba\n");
9742 goto out_remove_device;
9745 /* Wait 50ms for the interrupts of previous mailbox commands */
9747 /* Check active interrupts on message signaled interrupts */
9748 if (intr_mode == 0 ||
9749 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
9750 /* Log the current active interrupt mode */
9751 phba->intr_mode = intr_mode;
9752 lpfc_log_intr_mode(phba, intr_mode);
9755 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9756 "0447 Configure interrupt mode (%d) "
9757 "failed active interrupt test.\n",
9759 /* Disable the current interrupt mode */
9760 lpfc_sli_disable_intr(phba);
9761 /* Try next level of interrupt mode */
9762 cfg_mode = --intr_mode;
9766 /* Perform post initialization setup */
9767 lpfc_post_init_setup(phba);
9769 /* Check if there are static vports to be created. */
9770 lpfc_create_static_vport(phba);
9775 lpfc_unset_hba(phba);
9776 out_free_sysfs_attr:
9777 lpfc_free_sysfs_attr(vport);
9779 lpfc_destroy_shost(phba);
9780 out_unset_driver_resource:
9781 lpfc_unset_driver_resource_phase2(phba);
9783 lpfc_free_iocb_list(phba);
9784 out_unset_driver_resource_s3:
9785 lpfc_sli_driver_resource_unset(phba);
9786 out_unset_pci_mem_s3:
9787 lpfc_sli_pci_mem_unset(phba);
9788 out_disable_pci_dev:
9789 lpfc_disable_pci_dev(phba);
9791 scsi_host_put(shost);
9793 lpfc_hba_free(phba);
9798 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
9799 * @pdev: pointer to PCI device
9801 * This routine is to be called to disattach a device with SLI-3 interface
9802 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9803 * removed from PCI bus, it performs all the necessary cleanup for the HBA
9804 * device to be removed from the PCI subsystem properly.
9807 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
9809 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9810 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9811 struct lpfc_vport **vports;
9812 struct lpfc_hba *phba = vport->phba;
9814 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
9816 spin_lock_irq(&phba->hbalock);
9817 vport->load_flag |= FC_UNLOADING;
9818 spin_unlock_irq(&phba->hbalock);
9820 lpfc_free_sysfs_attr(vport);
9822 /* Release all the vports against this physical port */
9823 vports = lpfc_create_vport_work_array(phba);
9825 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9826 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9828 fc_vport_terminate(vports[i]->fc_vport);
9830 lpfc_destroy_vport_work_array(phba, vports);
9832 /* Remove FC host and then SCSI host with the physical port */
9833 fc_remove_host(shost);
9834 scsi_remove_host(shost);
9835 lpfc_cleanup(vport);
9838 * Bring down the SLI Layer. This step disable all interrupts,
9839 * clears the rings, discards all mailbox commands, and resets
9843 /* HBA interrupt will be disabled after this call */
9844 lpfc_sli_hba_down(phba);
9845 /* Stop kthread signal shall trigger work_done one more time */
9846 kthread_stop(phba->worker_thread);
9847 /* Final cleanup of txcmplq and reset the HBA */
9848 lpfc_sli_brdrestart(phba);
9850 kfree(phba->vpi_bmask);
9851 kfree(phba->vpi_ids);
9853 lpfc_stop_hba_timers(phba);
9854 spin_lock_irq(&phba->hbalock);
9855 list_del_init(&vport->listentry);
9856 spin_unlock_irq(&phba->hbalock);
9858 lpfc_debugfs_terminate(vport);
9860 /* Disable SR-IOV if enabled */
9861 if (phba->cfg_sriov_nr_virtfn)
9862 pci_disable_sriov(pdev);
9864 /* Disable interrupt */
9865 lpfc_sli_disable_intr(phba);
9867 scsi_host_put(shost);
9870 * Call scsi_free before mem_free since scsi bufs are released to their
9871 * corresponding pools here.
9873 lpfc_scsi_free(phba);
9874 lpfc_mem_free_all(phba);
9876 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9877 phba->hbqslimp.virt, phba->hbqslimp.phys);
9879 /* Free resources associated with SLI2 interface */
9880 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9881 phba->slim2p.virt, phba->slim2p.phys);
9883 /* unmap adapter SLIM and Control Registers */
9884 iounmap(phba->ctrl_regs_memmap_p);
9885 iounmap(phba->slim_memmap_p);
9887 lpfc_hba_free(phba);
9889 pci_release_selected_regions(pdev, bars);
9890 pci_disable_device(pdev);
9894 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9895 * @pdev: pointer to PCI device
9896 * @msg: power management message
9898 * This routine is to be called from the kernel's PCI subsystem to support
9899 * system Power Management (PM) to device with SLI-3 interface spec. When
9900 * PM invokes this method, it quiesces the device by stopping the driver's
9901 * worker thread for the device, turning off device's interrupt and DMA,
9902 * and bring the device offline. Note that as the driver implements the
9903 * minimum PM requirements to a power-aware driver's PM support for the
9904 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9905 * to the suspend() method call will be treated as SUSPEND and the driver will
9906 * fully reinitialize its device during resume() method call, the driver will
9907 * set device to PCI_D3hot state in PCI config space instead of setting it
9908 * according to the @msg provided by the PM.
9911 * 0 - driver suspended the device
9915 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9917 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9918 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9920 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9921 "0473 PCI device Power Management suspend.\n");
9923 /* Bring down the device */
9924 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9926 kthread_stop(phba->worker_thread);
9928 /* Disable interrupt from device */
9929 lpfc_sli_disable_intr(phba);
9931 /* Save device state to PCI config space */
9932 pci_save_state(pdev);
9933 pci_set_power_state(pdev, PCI_D3hot);
9939 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9940 * @pdev: pointer to PCI device
9942 * This routine is to be called from the kernel's PCI subsystem to support
9943 * system Power Management (PM) to device with SLI-3 interface spec. When PM
9944 * invokes this method, it restores the device's PCI config space state and
9945 * fully reinitializes the device and brings it online. Note that as the
9946 * driver implements the minimum PM requirements to a power-aware driver's
9947 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9948 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9949 * driver will fully reinitialize its device during resume() method call,
9950 * the device will be set to PCI_D0 directly in PCI config space before
9951 * restoring the state.
9954 * 0 - driver suspended the device
9958 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9960 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9961 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9965 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9966 "0452 PCI device Power Management resume.\n");
9968 /* Restore device state from PCI config space */
9969 pci_set_power_state(pdev, PCI_D0);
9970 pci_restore_state(pdev);
9973 * As the new kernel behavior of pci_restore_state() API call clears
9974 * device saved_state flag, need to save the restored state again.
9976 pci_save_state(pdev);
9978 if (pdev->is_busmaster)
9979 pci_set_master(pdev);
9981 /* Startup the kernel thread for this host adapter. */
9982 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9983 "lpfc_worker_%d", phba->brd_no);
9984 if (IS_ERR(phba->worker_thread)) {
9985 error = PTR_ERR(phba->worker_thread);
9986 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9987 "0434 PM resume failed to start worker "
9988 "thread: error=x%x.\n", error);
9992 /* Configure and enable interrupt */
9993 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9994 if (intr_mode == LPFC_INTR_ERROR) {
9995 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9996 "0430 PM resume Failed to enable interrupt\n");
9999 phba->intr_mode = intr_mode;
10001 /* Restart HBA and bring it online */
10002 lpfc_sli_brdrestart(phba);
10005 /* Log the current active interrupt mode */
10006 lpfc_log_intr_mode(phba, phba->intr_mode);
10012 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
10013 * @phba: pointer to lpfc hba data structure.
10015 * This routine is called to prepare the SLI3 device for PCI slot recover. It
10016 * aborts all the outstanding SCSI I/Os to the pci device.
10019 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
10021 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10022 "2723 PCI channel I/O abort preparing for recovery\n");
10025 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10026 * and let the SCSI mid-layer to retry them to recover.
10028 lpfc_sli_abort_fcp_rings(phba);
10032 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
10033 * @phba: pointer to lpfc hba data structure.
10035 * This routine is called to prepare the SLI3 device for PCI slot reset. It
10036 * disables the device interrupt and pci device, and aborts the internal FCP
10040 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
10042 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10043 "2710 PCI channel disable preparing for reset\n");
10045 /* Block any management I/Os to the device */
10046 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
10048 /* Block all SCSI devices' I/Os on the host */
10049 lpfc_scsi_dev_block(phba);
10051 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10052 lpfc_sli_flush_fcp_rings(phba);
10054 /* stop all timers */
10055 lpfc_stop_hba_timers(phba);
10057 /* Disable interrupt and pci device */
10058 lpfc_sli_disable_intr(phba);
10059 pci_disable_device(phba->pcidev);
10063 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
10064 * @phba: pointer to lpfc hba data structure.
10066 * This routine is called to prepare the SLI3 device for PCI slot permanently
10067 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10071 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10073 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10074 "2711 PCI channel permanent disable for failure\n");
10075 /* Block all SCSI devices' I/Os on the host */
10076 lpfc_scsi_dev_block(phba);
10078 /* stop all timers */
10079 lpfc_stop_hba_timers(phba);
10081 /* Clean up all driver's outstanding SCSI I/Os */
10082 lpfc_sli_flush_fcp_rings(phba);
10086 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
10087 * @pdev: pointer to PCI device.
10088 * @state: the current PCI connection state.
10090 * This routine is called from the PCI subsystem for I/O error handling to
10091 * device with SLI-3 interface spec. This function is called by the PCI
10092 * subsystem after a PCI bus error affecting this device has been detected.
10093 * When this function is invoked, it will need to stop all the I/Os and
10094 * interrupt(s) to the device. Once that is done, it will return
10095 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
10099 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
10100 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10101 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10103 static pci_ers_result_t
10104 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
10106 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10107 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10110 case pci_channel_io_normal:
10111 /* Non-fatal error, prepare for recovery */
10112 lpfc_sli_prep_dev_for_recover(phba);
10113 return PCI_ERS_RESULT_CAN_RECOVER;
10114 case pci_channel_io_frozen:
10115 /* Fatal error, prepare for slot reset */
10116 lpfc_sli_prep_dev_for_reset(phba);
10117 return PCI_ERS_RESULT_NEED_RESET;
10118 case pci_channel_io_perm_failure:
10119 /* Permanent failure, prepare for device down */
10120 lpfc_sli_prep_dev_for_perm_failure(phba);
10121 return PCI_ERS_RESULT_DISCONNECT;
10123 /* Unknown state, prepare and request slot reset */
10124 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10125 "0472 Unknown PCI error state: x%x\n", state);
10126 lpfc_sli_prep_dev_for_reset(phba);
10127 return PCI_ERS_RESULT_NEED_RESET;
10132 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
10133 * @pdev: pointer to PCI device.
10135 * This routine is called from the PCI subsystem for error handling to
10136 * device with SLI-3 interface spec. This is called after PCI bus has been
10137 * reset to restart the PCI card from scratch, as if from a cold-boot.
10138 * During the PCI subsystem error recovery, after driver returns
10139 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10140 * recovery and then call this routine before calling the .resume method
10141 * to recover the device. This function will initialize the HBA device,
10142 * enable the interrupt, but it will just put the HBA to offline state
10143 * without passing any I/O traffic.
10146 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10147 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10149 static pci_ers_result_t
10150 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
10152 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10153 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10154 struct lpfc_sli *psli = &phba->sli;
10155 uint32_t intr_mode;
10157 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10158 if (pci_enable_device_mem(pdev)) {
10159 printk(KERN_ERR "lpfc: Cannot re-enable "
10160 "PCI device after reset.\n");
10161 return PCI_ERS_RESULT_DISCONNECT;
10164 pci_restore_state(pdev);
10167 * As the new kernel behavior of pci_restore_state() API call clears
10168 * device saved_state flag, need to save the restored state again.
10170 pci_save_state(pdev);
10172 if (pdev->is_busmaster)
10173 pci_set_master(pdev);
10175 spin_lock_irq(&phba->hbalock);
10176 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10177 spin_unlock_irq(&phba->hbalock);
10179 /* Configure and enable interrupt */
10180 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10181 if (intr_mode == LPFC_INTR_ERROR) {
10182 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10183 "0427 Cannot re-enable interrupt after "
10185 return PCI_ERS_RESULT_DISCONNECT;
10187 phba->intr_mode = intr_mode;
10189 /* Take device offline, it will perform cleanup */
10190 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10191 lpfc_offline(phba);
10192 lpfc_sli_brdrestart(phba);
10194 /* Log the current active interrupt mode */
10195 lpfc_log_intr_mode(phba, phba->intr_mode);
10197 return PCI_ERS_RESULT_RECOVERED;
10201 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
10202 * @pdev: pointer to PCI device
10204 * This routine is called from the PCI subsystem for error handling to device
10205 * with SLI-3 interface spec. It is called when kernel error recovery tells
10206 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10207 * error recovery. After this call, traffic can start to flow from this device
10211 lpfc_io_resume_s3(struct pci_dev *pdev)
10213 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10214 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10216 /* Bring device online, it will be no-op for non-fatal error resume */
10219 /* Clean up Advanced Error Reporting (AER) if needed */
10220 if (phba->hba_flag & HBA_AER_ENABLED)
10221 pci_cleanup_aer_uncorrect_error_status(pdev);
10225 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
10226 * @phba: pointer to lpfc hba data structure.
10228 * returns the number of ELS/CT IOCBs to reserve
10231 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
10233 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
10235 if (phba->sli_rev == LPFC_SLI_REV4) {
10236 if (max_xri <= 100)
10238 else if (max_xri <= 256)
10240 else if (max_xri <= 512)
10242 else if (max_xri <= 1024)
10244 else if (max_xri <= 1536)
10246 else if (max_xri <= 2048)
10255 * lpfc_write_firmware - attempt to write a firmware image to the port
10256 * @fw: pointer to firmware image returned from request_firmware.
10257 * @phba: pointer to lpfc hba data structure.
10261 lpfc_write_firmware(const struct firmware *fw, void *context)
10263 struct lpfc_hba *phba = (struct lpfc_hba *)context;
10264 char fwrev[FW_REV_STR_SIZE];
10265 struct lpfc_grp_hdr *image;
10266 struct list_head dma_buffer_list;
10268 struct lpfc_dmabuf *dmabuf, *next;
10269 uint32_t offset = 0, temp_offset = 0;
10271 /* It can be null in no-wait mode, sanity check */
10276 image = (struct lpfc_grp_hdr *)fw->data;
10278 INIT_LIST_HEAD(&dma_buffer_list);
10279 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
10280 (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
10281 LPFC_FILE_TYPE_GROUP) ||
10282 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
10283 (be32_to_cpu(image->size) != fw->size)) {
10284 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10285 "3022 Invalid FW image found. "
10286 "Magic:%x Type:%x ID:%x\n",
10287 be32_to_cpu(image->magic_number),
10288 bf_get_be32(lpfc_grp_hdr_file_type, image),
10289 bf_get_be32(lpfc_grp_hdr_id, image));
10293 lpfc_decode_firmware_rev(phba, fwrev, 1);
10294 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
10295 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10296 "3023 Updating Firmware, Current Version:%s "
10297 "New Version:%s\n",
10298 fwrev, image->revision);
10299 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
10300 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
10306 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
10310 if (!dmabuf->virt) {
10315 list_add_tail(&dmabuf->list, &dma_buffer_list);
10317 while (offset < fw->size) {
10318 temp_offset = offset;
10319 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
10320 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
10321 memcpy(dmabuf->virt,
10322 fw->data + temp_offset,
10323 fw->size - temp_offset);
10324 temp_offset = fw->size;
10327 memcpy(dmabuf->virt, fw->data + temp_offset,
10329 temp_offset += SLI4_PAGE_SIZE;
10331 rc = lpfc_wr_object(phba, &dma_buffer_list,
10332 (fw->size - offset), &offset);
10340 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
10341 list_del(&dmabuf->list);
10342 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
10343 dmabuf->virt, dmabuf->phys);
10346 release_firmware(fw);
10348 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10349 "3024 Firmware update done: %d.\n", rc);
10354 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
10355 * @phba: pointer to lpfc hba data structure.
10357 * This routine is called to perform Linux generic firmware upgrade on device
10358 * that supports such feature.
10361 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
10363 uint8_t file_name[ELX_MODEL_NAME_SIZE];
10365 const struct firmware *fw;
10367 /* Only supported on SLI4 interface type 2 for now */
10368 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
10369 LPFC_SLI_INTF_IF_TYPE_2)
10372 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
10374 if (fw_upgrade == INT_FW_UPGRADE) {
10375 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
10376 file_name, &phba->pcidev->dev,
10377 GFP_KERNEL, (void *)phba,
10378 lpfc_write_firmware);
10379 } else if (fw_upgrade == RUN_FW_UPGRADE) {
10380 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
10382 lpfc_write_firmware(fw, (void *)phba);
10391 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
10392 * @pdev: pointer to PCI device
10393 * @pid: pointer to PCI device identifier
10395 * This routine is called from the kernel's PCI subsystem to device with
10396 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10397 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10398 * information of the device and driver to see if the driver state that it
10399 * can support this kind of device. If the match is successful, the driver
10400 * core invokes this routine. If this routine determines it can claim the HBA,
10401 * it does all the initialization that it needs to do to handle the HBA
10405 * 0 - driver can claim the device
10406 * negative value - driver can not claim the device
10409 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
10411 struct lpfc_hba *phba;
10412 struct lpfc_vport *vport = NULL;
10413 struct Scsi_Host *shost = NULL;
10415 uint32_t cfg_mode, intr_mode;
10416 int adjusted_fcp_io_channel;
10418 /* Allocate memory for HBA structure */
10419 phba = lpfc_hba_alloc(pdev);
10423 /* Perform generic PCI device enabling operation */
10424 error = lpfc_enable_pci_dev(phba);
10426 goto out_free_phba;
10428 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
10429 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
10431 goto out_disable_pci_dev;
10433 /* Set up SLI-4 specific device PCI memory space */
10434 error = lpfc_sli4_pci_mem_setup(phba);
10436 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10437 "1410 Failed to set up pci memory space.\n");
10438 goto out_disable_pci_dev;
10441 /* Set up phase-1 common device driver resources */
10442 error = lpfc_setup_driver_resource_phase1(phba);
10444 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10445 "1411 Failed to set up driver resource.\n");
10446 goto out_unset_pci_mem_s4;
10449 /* Set up SLI-4 Specific device driver resources */
10450 error = lpfc_sli4_driver_resource_setup(phba);
10452 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10453 "1412 Failed to set up driver resource.\n");
10454 goto out_unset_pci_mem_s4;
10457 /* Initialize and populate the iocb list per host */
10459 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10460 "2821 initialize iocb list %d.\n",
10461 phba->cfg_iocb_cnt*1024);
10462 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
10465 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10466 "1413 Failed to initialize iocb list.\n");
10467 goto out_unset_driver_resource_s4;
10470 INIT_LIST_HEAD(&phba->active_rrq_list);
10471 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
10473 /* Set up common device driver resources */
10474 error = lpfc_setup_driver_resource_phase2(phba);
10476 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10477 "1414 Failed to set up driver resource.\n");
10478 goto out_free_iocb_list;
10481 /* Get the default values for Model Name and Description */
10482 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10484 /* Create SCSI host to the physical port */
10485 error = lpfc_create_shost(phba);
10487 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10488 "1415 Failed to create scsi host.\n");
10489 goto out_unset_driver_resource;
10492 /* Configure sysfs attributes */
10493 vport = phba->pport;
10494 error = lpfc_alloc_sysfs_attr(vport);
10496 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10497 "1416 Failed to allocate sysfs attr\n");
10498 goto out_destroy_shost;
10501 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10502 /* Now, trying to enable interrupt and bring up the device */
10503 cfg_mode = phba->cfg_use_msi;
10505 /* Put device to a known state before enabling interrupt */
10506 lpfc_stop_port(phba);
10507 /* Configure and enable interrupt */
10508 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
10509 if (intr_mode == LPFC_INTR_ERROR) {
10510 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10511 "0426 Failed to enable interrupt.\n");
10513 goto out_free_sysfs_attr;
10515 /* Default to single EQ for non-MSI-X */
10516 if (phba->intr_type != MSIX)
10517 adjusted_fcp_io_channel = 1;
10519 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
10520 phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
10521 /* Set up SLI-4 HBA */
10522 if (lpfc_sli4_hba_setup(phba)) {
10523 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10524 "1421 Failed to set up hba\n");
10526 goto out_disable_intr;
10529 /* Log the current active interrupt mode */
10530 phba->intr_mode = intr_mode;
10531 lpfc_log_intr_mode(phba, intr_mode);
10533 /* Perform post initialization setup */
10534 lpfc_post_init_setup(phba);
10536 /* check for firmware upgrade or downgrade */
10537 if (phba->cfg_request_firmware_upgrade)
10538 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
10540 /* Check if there are static vports to be created. */
10541 lpfc_create_static_vport(phba);
10545 lpfc_sli4_disable_intr(phba);
10546 out_free_sysfs_attr:
10547 lpfc_free_sysfs_attr(vport);
10549 lpfc_destroy_shost(phba);
10550 out_unset_driver_resource:
10551 lpfc_unset_driver_resource_phase2(phba);
10552 out_free_iocb_list:
10553 lpfc_free_iocb_list(phba);
10554 out_unset_driver_resource_s4:
10555 lpfc_sli4_driver_resource_unset(phba);
10556 out_unset_pci_mem_s4:
10557 lpfc_sli4_pci_mem_unset(phba);
10558 out_disable_pci_dev:
10559 lpfc_disable_pci_dev(phba);
10561 scsi_host_put(shost);
10563 lpfc_hba_free(phba);
10568 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
10569 * @pdev: pointer to PCI device
10571 * This routine is called from the kernel's PCI subsystem to device with
10572 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10573 * removed from PCI bus, it performs all the necessary cleanup for the HBA
10574 * device to be removed from the PCI subsystem properly.
10577 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
10579 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10580 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10581 struct lpfc_vport **vports;
10582 struct lpfc_hba *phba = vport->phba;
10585 /* Mark the device unloading flag */
10586 spin_lock_irq(&phba->hbalock);
10587 vport->load_flag |= FC_UNLOADING;
10588 spin_unlock_irq(&phba->hbalock);
10590 /* Free the HBA sysfs attributes */
10591 lpfc_free_sysfs_attr(vport);
10593 /* Release all the vports against this physical port */
10594 vports = lpfc_create_vport_work_array(phba);
10595 if (vports != NULL)
10596 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10597 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10599 fc_vport_terminate(vports[i]->fc_vport);
10601 lpfc_destroy_vport_work_array(phba, vports);
10603 /* Remove FC host and then SCSI host with the physical port */
10604 fc_remove_host(shost);
10605 scsi_remove_host(shost);
10607 /* Perform cleanup on the physical port */
10608 lpfc_cleanup(vport);
10611 * Bring down the SLI Layer. This step disables all interrupts,
10612 * clears the rings, discards all mailbox commands, and resets
10613 * the HBA FCoE function.
10615 lpfc_debugfs_terminate(vport);
10616 lpfc_sli4_hba_unset(phba);
10618 spin_lock_irq(&phba->hbalock);
10619 list_del_init(&vport->listentry);
10620 spin_unlock_irq(&phba->hbalock);
10622 /* Perform scsi free before driver resource_unset since scsi
10623 * buffers are released to their corresponding pools here.
10625 lpfc_scsi_free(phba);
10627 lpfc_sli4_driver_resource_unset(phba);
10629 /* Unmap adapter Control and Doorbell registers */
10630 lpfc_sli4_pci_mem_unset(phba);
10632 /* Release PCI resources and disable device's PCI function */
10633 scsi_host_put(shost);
10634 lpfc_disable_pci_dev(phba);
10636 /* Finally, free the driver's device data structure */
10637 lpfc_hba_free(phba);
10643 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
10644 * @pdev: pointer to PCI device
10645 * @msg: power management message
10647 * This routine is called from the kernel's PCI subsystem to support system
10648 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
10649 * this method, it quiesces the device by stopping the driver's worker
10650 * thread for the device, turning off device's interrupt and DMA, and bring
10651 * the device offline. Note that as the driver implements the minimum PM
10652 * requirements to a power-aware driver's PM support for suspend/resume -- all
10653 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
10654 * method call will be treated as SUSPEND and the driver will fully
10655 * reinitialize its device during resume() method call, the driver will set
10656 * device to PCI_D3hot state in PCI config space instead of setting it
10657 * according to the @msg provided by the PM.
10660 * 0 - driver suspended the device
10664 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
10666 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10667 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10669 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10670 "2843 PCI device Power Management suspend.\n");
10672 /* Bring down the device */
10673 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10674 lpfc_offline(phba);
10675 kthread_stop(phba->worker_thread);
10677 /* Disable interrupt from device */
10678 lpfc_sli4_disable_intr(phba);
10679 lpfc_sli4_queue_destroy(phba);
10681 /* Save device state to PCI config space */
10682 pci_save_state(pdev);
10683 pci_set_power_state(pdev, PCI_D3hot);
10689 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
10690 * @pdev: pointer to PCI device
10692 * This routine is called from the kernel's PCI subsystem to support system
10693 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
10694 * this method, it restores the device's PCI config space state and fully
10695 * reinitializes the device and brings it online. Note that as the driver
10696 * implements the minimum PM requirements to a power-aware driver's PM for
10697 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10698 * to the suspend() method call will be treated as SUSPEND and the driver
10699 * will fully reinitialize its device during resume() method call, the device
10700 * will be set to PCI_D0 directly in PCI config space before restoring the
10704 * 0 - driver suspended the device
10708 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
10710 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10711 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10712 uint32_t intr_mode;
10715 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10716 "0292 PCI device Power Management resume.\n");
10718 /* Restore device state from PCI config space */
10719 pci_set_power_state(pdev, PCI_D0);
10720 pci_restore_state(pdev);
10723 * As the new kernel behavior of pci_restore_state() API call clears
10724 * device saved_state flag, need to save the restored state again.
10726 pci_save_state(pdev);
10728 if (pdev->is_busmaster)
10729 pci_set_master(pdev);
10731 /* Startup the kernel thread for this host adapter. */
10732 phba->worker_thread = kthread_run(lpfc_do_work, phba,
10733 "lpfc_worker_%d", phba->brd_no);
10734 if (IS_ERR(phba->worker_thread)) {
10735 error = PTR_ERR(phba->worker_thread);
10736 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10737 "0293 PM resume failed to start worker "
10738 "thread: error=x%x.\n", error);
10742 /* Configure and enable interrupt */
10743 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10744 if (intr_mode == LPFC_INTR_ERROR) {
10745 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10746 "0294 PM resume Failed to enable interrupt\n");
10749 phba->intr_mode = intr_mode;
10751 /* Restart HBA and bring it online */
10752 lpfc_sli_brdrestart(phba);
10755 /* Log the current active interrupt mode */
10756 lpfc_log_intr_mode(phba, phba->intr_mode);
10762 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
10763 * @phba: pointer to lpfc hba data structure.
10765 * This routine is called to prepare the SLI4 device for PCI slot recover. It
10766 * aborts all the outstanding SCSI I/Os to the pci device.
10769 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
10771 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10772 "2828 PCI channel I/O abort preparing for recovery\n");
10774 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10775 * and let the SCSI mid-layer to retry them to recover.
10777 lpfc_sli_abort_fcp_rings(phba);
10781 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
10782 * @phba: pointer to lpfc hba data structure.
10784 * This routine is called to prepare the SLI4 device for PCI slot reset. It
10785 * disables the device interrupt and pci device, and aborts the internal FCP
10789 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
10791 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10792 "2826 PCI channel disable preparing for reset\n");
10794 /* Block any management I/Os to the device */
10795 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
10797 /* Block all SCSI devices' I/Os on the host */
10798 lpfc_scsi_dev_block(phba);
10800 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10801 lpfc_sli_flush_fcp_rings(phba);
10803 /* stop all timers */
10804 lpfc_stop_hba_timers(phba);
10806 /* Disable interrupt and pci device */
10807 lpfc_sli4_disable_intr(phba);
10808 lpfc_sli4_queue_destroy(phba);
10809 pci_disable_device(phba->pcidev);
10813 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10814 * @phba: pointer to lpfc hba data structure.
10816 * This routine is called to prepare the SLI4 device for PCI slot permanently
10817 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10821 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10823 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10824 "2827 PCI channel permanent disable for failure\n");
10826 /* Block all SCSI devices' I/Os on the host */
10827 lpfc_scsi_dev_block(phba);
10829 /* stop all timers */
10830 lpfc_stop_hba_timers(phba);
10832 /* Clean up all driver's outstanding SCSI I/Os */
10833 lpfc_sli_flush_fcp_rings(phba);
10837 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10838 * @pdev: pointer to PCI device.
10839 * @state: the current PCI connection state.
10841 * This routine is called from the PCI subsystem for error handling to device
10842 * with SLI-4 interface spec. This function is called by the PCI subsystem
10843 * after a PCI bus error affecting this device has been detected. When this
10844 * function is invoked, it will need to stop all the I/Os and interrupt(s)
10845 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10846 * for the PCI subsystem to perform proper recovery as desired.
10849 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10850 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10852 static pci_ers_result_t
10853 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10855 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10856 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10859 case pci_channel_io_normal:
10860 /* Non-fatal error, prepare for recovery */
10861 lpfc_sli4_prep_dev_for_recover(phba);
10862 return PCI_ERS_RESULT_CAN_RECOVER;
10863 case pci_channel_io_frozen:
10864 /* Fatal error, prepare for slot reset */
10865 lpfc_sli4_prep_dev_for_reset(phba);
10866 return PCI_ERS_RESULT_NEED_RESET;
10867 case pci_channel_io_perm_failure:
10868 /* Permanent failure, prepare for device down */
10869 lpfc_sli4_prep_dev_for_perm_failure(phba);
10870 return PCI_ERS_RESULT_DISCONNECT;
10872 /* Unknown state, prepare and request slot reset */
10873 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10874 "2825 Unknown PCI error state: x%x\n", state);
10875 lpfc_sli4_prep_dev_for_reset(phba);
10876 return PCI_ERS_RESULT_NEED_RESET;
10881 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10882 * @pdev: pointer to PCI device.
10884 * This routine is called from the PCI subsystem for error handling to device
10885 * with SLI-4 interface spec. It is called after PCI bus has been reset to
10886 * restart the PCI card from scratch, as if from a cold-boot. During the
10887 * PCI subsystem error recovery, after the driver returns
10888 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10889 * recovery and then call this routine before calling the .resume method to
10890 * recover the device. This function will initialize the HBA device, enable
10891 * the interrupt, but it will just put the HBA to offline state without
10892 * passing any I/O traffic.
10895 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10896 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10898 static pci_ers_result_t
10899 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10901 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10902 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10903 struct lpfc_sli *psli = &phba->sli;
10904 uint32_t intr_mode;
10906 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10907 if (pci_enable_device_mem(pdev)) {
10908 printk(KERN_ERR "lpfc: Cannot re-enable "
10909 "PCI device after reset.\n");
10910 return PCI_ERS_RESULT_DISCONNECT;
10913 pci_restore_state(pdev);
10916 * As the new kernel behavior of pci_restore_state() API call clears
10917 * device saved_state flag, need to save the restored state again.
10919 pci_save_state(pdev);
10921 if (pdev->is_busmaster)
10922 pci_set_master(pdev);
10924 spin_lock_irq(&phba->hbalock);
10925 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10926 spin_unlock_irq(&phba->hbalock);
10928 /* Configure and enable interrupt */
10929 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10930 if (intr_mode == LPFC_INTR_ERROR) {
10931 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10932 "2824 Cannot re-enable interrupt after "
10934 return PCI_ERS_RESULT_DISCONNECT;
10936 phba->intr_mode = intr_mode;
10938 /* Log the current active interrupt mode */
10939 lpfc_log_intr_mode(phba, phba->intr_mode);
10941 return PCI_ERS_RESULT_RECOVERED;
10945 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10946 * @pdev: pointer to PCI device
10948 * This routine is called from the PCI subsystem for error handling to device
10949 * with SLI-4 interface spec. It is called when kernel error recovery tells
10950 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10951 * error recovery. After this call, traffic can start to flow from this device
10955 lpfc_io_resume_s4(struct pci_dev *pdev)
10957 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10958 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10961 * In case of slot reset, as function reset is performed through
10962 * mailbox command which needs DMA to be enabled, this operation
10963 * has to be moved to the io resume phase. Taking device offline
10964 * will perform the necessary cleanup.
10966 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10967 /* Perform device reset */
10968 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10969 lpfc_offline(phba);
10970 lpfc_sli_brdrestart(phba);
10971 /* Bring the device back online */
10975 /* Clean up Advanced Error Reporting (AER) if needed */
10976 if (phba->hba_flag & HBA_AER_ENABLED)
10977 pci_cleanup_aer_uncorrect_error_status(pdev);
10981 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10982 * @pdev: pointer to PCI device
10983 * @pid: pointer to PCI device identifier
10985 * This routine is to be registered to the kernel's PCI subsystem. When an
10986 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10987 * at PCI device-specific information of the device and driver to see if the
10988 * driver state that it can support this kind of device. If the match is
10989 * successful, the driver core invokes this routine. This routine dispatches
10990 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10991 * do all the initialization that it needs to do to handle the HBA device
10995 * 0 - driver can claim the device
10996 * negative value - driver can not claim the device
10999 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
11002 struct lpfc_sli_intf intf;
11004 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
11007 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
11008 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
11009 rc = lpfc_pci_probe_one_s4(pdev, pid);
11011 rc = lpfc_pci_probe_one_s3(pdev, pid);
11017 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
11018 * @pdev: pointer to PCI device
11020 * This routine is to be registered to the kernel's PCI subsystem. When an
11021 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
11022 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
11023 * remove routine, which will perform all the necessary cleanup for the
11024 * device to be removed from the PCI subsystem properly.
11027 lpfc_pci_remove_one(struct pci_dev *pdev)
11029 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11030 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11032 switch (phba->pci_dev_grp) {
11033 case LPFC_PCI_DEV_LP:
11034 lpfc_pci_remove_one_s3(pdev);
11036 case LPFC_PCI_DEV_OC:
11037 lpfc_pci_remove_one_s4(pdev);
11040 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11041 "1424 Invalid PCI device group: 0x%x\n",
11042 phba->pci_dev_grp);
11049 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
11050 * @pdev: pointer to PCI device
11051 * @msg: power management message
11053 * This routine is to be registered to the kernel's PCI subsystem to support
11054 * system Power Management (PM). When PM invokes this method, it dispatches
11055 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
11056 * suspend the device.
11059 * 0 - driver suspended the device
11063 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
11065 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11066 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11069 switch (phba->pci_dev_grp) {
11070 case LPFC_PCI_DEV_LP:
11071 rc = lpfc_pci_suspend_one_s3(pdev, msg);
11073 case LPFC_PCI_DEV_OC:
11074 rc = lpfc_pci_suspend_one_s4(pdev, msg);
11077 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11078 "1425 Invalid PCI device group: 0x%x\n",
11079 phba->pci_dev_grp);
11086 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
11087 * @pdev: pointer to PCI device
11089 * This routine is to be registered to the kernel's PCI subsystem to support
11090 * system Power Management (PM). When PM invokes this method, it dispatches
11091 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
11092 * resume the device.
11095 * 0 - driver suspended the device
11099 lpfc_pci_resume_one(struct pci_dev *pdev)
11101 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11102 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11105 switch (phba->pci_dev_grp) {
11106 case LPFC_PCI_DEV_LP:
11107 rc = lpfc_pci_resume_one_s3(pdev);
11109 case LPFC_PCI_DEV_OC:
11110 rc = lpfc_pci_resume_one_s4(pdev);
11113 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11114 "1426 Invalid PCI device group: 0x%x\n",
11115 phba->pci_dev_grp);
11122 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
11123 * @pdev: pointer to PCI device.
11124 * @state: the current PCI connection state.
11126 * This routine is registered to the PCI subsystem for error handling. This
11127 * function is called by the PCI subsystem after a PCI bus error affecting
11128 * this device has been detected. When this routine is invoked, it dispatches
11129 * the action to the proper SLI-3 or SLI-4 device error detected handling
11130 * routine, which will perform the proper error detected operation.
11133 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11134 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11136 static pci_ers_result_t
11137 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
11139 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11140 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11141 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11143 switch (phba->pci_dev_grp) {
11144 case LPFC_PCI_DEV_LP:
11145 rc = lpfc_io_error_detected_s3(pdev, state);
11147 case LPFC_PCI_DEV_OC:
11148 rc = lpfc_io_error_detected_s4(pdev, state);
11151 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11152 "1427 Invalid PCI device group: 0x%x\n",
11153 phba->pci_dev_grp);
11160 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
11161 * @pdev: pointer to PCI device.
11163 * This routine is registered to the PCI subsystem for error handling. This
11164 * function is called after PCI bus has been reset to restart the PCI card
11165 * from scratch, as if from a cold-boot. When this routine is invoked, it
11166 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
11167 * routine, which will perform the proper device reset.
11170 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
11171 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11173 static pci_ers_result_t
11174 lpfc_io_slot_reset(struct pci_dev *pdev)
11176 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11177 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11178 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11180 switch (phba->pci_dev_grp) {
11181 case LPFC_PCI_DEV_LP:
11182 rc = lpfc_io_slot_reset_s3(pdev);
11184 case LPFC_PCI_DEV_OC:
11185 rc = lpfc_io_slot_reset_s4(pdev);
11188 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11189 "1428 Invalid PCI device group: 0x%x\n",
11190 phba->pci_dev_grp);
11197 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
11198 * @pdev: pointer to PCI device
11200 * This routine is registered to the PCI subsystem for error handling. It
11201 * is called when kernel error recovery tells the lpfc driver that it is
11202 * OK to resume normal PCI operation after PCI bus error recovery. When
11203 * this routine is invoked, it dispatches the action to the proper SLI-3
11204 * or SLI-4 device io_resume routine, which will resume the device operation.
11207 lpfc_io_resume(struct pci_dev *pdev)
11209 struct Scsi_Host *shost = pci_get_drvdata(pdev);
11210 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11212 switch (phba->pci_dev_grp) {
11213 case LPFC_PCI_DEV_LP:
11214 lpfc_io_resume_s3(pdev);
11216 case LPFC_PCI_DEV_OC:
11217 lpfc_io_resume_s4(pdev);
11220 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11221 "1429 Invalid PCI device group: 0x%x\n",
11222 phba->pci_dev_grp);
11229 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
11230 * @phba: pointer to lpfc hba data structure.
11232 * This routine checks to see if OAS is supported for this adapter. If
11233 * supported, the configure Flash Optimized Fabric flag is set. Otherwise,
11234 * the enable oas flag is cleared and the pool created for OAS device data
11239 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
11242 if (!phba->cfg_EnableXLane)
11245 if (phba->sli4_hba.pc_sli4_params.oas_supported) {
11249 if (phba->device_data_mem_pool)
11250 mempool_destroy(phba->device_data_mem_pool);
11251 phba->device_data_mem_pool = NULL;
11258 * lpfc_fof_queue_setup - Set up all the fof queues
11259 * @phba: pointer to lpfc hba data structure.
11261 * This routine is invoked to set up all the fof queues for the FC HBA
11266 * -ENOMEM - No available memory
11269 lpfc_fof_queue_setup(struct lpfc_hba *phba)
11271 struct lpfc_sli *psli = &phba->sli;
11274 rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
11278 if (phba->cfg_fof) {
11280 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
11281 phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
11285 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
11286 phba->sli4_hba.oas_cq, LPFC_FCP);
11290 phba->sli4_hba.oas_cq->pring = &psli->ring[LPFC_FCP_OAS_RING];
11291 phba->sli4_hba.oas_ring = &psli->ring[LPFC_FCP_OAS_RING];
11297 lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
11299 lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
11305 * lpfc_fof_queue_create - Create all the fof queues
11306 * @phba: pointer to lpfc hba data structure.
11308 * This routine is invoked to allocate all the fof queues for the FC HBA
11309 * operation. For each SLI4 queue type, the parameters such as queue entry
11310 * count (queue depth) shall be taken from the module parameter. For now,
11311 * we just use some constant number as place holder.
11315 * -ENOMEM - No availble memory
11316 * -EIO - The mailbox failed to complete successfully.
11319 lpfc_fof_queue_create(struct lpfc_hba *phba)
11321 struct lpfc_queue *qdesc;
11323 /* Create FOF EQ */
11324 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
11325 phba->sli4_hba.eq_ecount);
11329 phba->sli4_hba.fof_eq = qdesc;
11331 if (phba->cfg_fof) {
11333 /* Create OAS CQ */
11334 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
11335 phba->sli4_hba.cq_ecount);
11339 phba->sli4_hba.oas_cq = qdesc;
11341 /* Create OAS WQ */
11342 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
11343 phba->sli4_hba.wq_ecount);
11347 phba->sli4_hba.oas_wq = qdesc;
11353 lpfc_fof_queue_destroy(phba);
11358 * lpfc_fof_queue_destroy - Destroy all the fof queues
11359 * @phba: pointer to lpfc hba data structure.
11361 * This routine is invoked to release all the SLI4 queues with the FC HBA
11368 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
11370 /* Release FOF Event queue */
11371 if (phba->sli4_hba.fof_eq != NULL) {
11372 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
11373 phba->sli4_hba.fof_eq = NULL;
11376 /* Release OAS Completion queue */
11377 if (phba->sli4_hba.oas_cq != NULL) {
11378 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
11379 phba->sli4_hba.oas_cq = NULL;
11382 /* Release OAS Work queue */
11383 if (phba->sli4_hba.oas_wq != NULL) {
11384 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
11385 phba->sli4_hba.oas_wq = NULL;
11390 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
11392 static const struct pci_error_handlers lpfc_err_handler = {
11393 .error_detected = lpfc_io_error_detected,
11394 .slot_reset = lpfc_io_slot_reset,
11395 .resume = lpfc_io_resume,
11398 static struct pci_driver lpfc_driver = {
11399 .name = LPFC_DRIVER_NAME,
11400 .id_table = lpfc_id_table,
11401 .probe = lpfc_pci_probe_one,
11402 .remove = lpfc_pci_remove_one,
11403 .suspend = lpfc_pci_suspend_one,
11404 .resume = lpfc_pci_resume_one,
11405 .err_handler = &lpfc_err_handler,
11408 static const struct file_operations lpfc_mgmt_fop = {
11409 .owner = THIS_MODULE,
11412 static struct miscdevice lpfc_mgmt_dev = {
11413 .minor = MISC_DYNAMIC_MINOR,
11414 .name = "lpfcmgmt",
11415 .fops = &lpfc_mgmt_fop,
11419 * lpfc_init - lpfc module initialization routine
11421 * This routine is to be invoked when the lpfc module is loaded into the
11422 * kernel. The special kernel macro module_init() is used to indicate the
11423 * role of this routine to the kernel as lpfc module entry point.
11427 * -ENOMEM - FC attach transport failed
11428 * all others - failed
11436 printk(LPFC_MODULE_DESC "\n");
11437 printk(LPFC_COPYRIGHT "\n");
11439 error = misc_register(&lpfc_mgmt_dev);
11441 printk(KERN_ERR "Could not register lpfcmgmt device, "
11442 "misc_register returned with status %d", error);
11444 lpfc_transport_functions.vport_create = lpfc_vport_create;
11445 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
11446 lpfc_transport_template =
11447 fc_attach_transport(&lpfc_transport_functions);
11448 if (lpfc_transport_template == NULL)
11450 lpfc_vport_transport_template =
11451 fc_attach_transport(&lpfc_vport_transport_functions);
11452 if (lpfc_vport_transport_template == NULL) {
11453 fc_release_transport(lpfc_transport_template);
11457 /* Initialize in case vector mapping is needed */
11458 lpfc_used_cpu = NULL;
11459 lpfc_present_cpu = 0;
11460 for_each_present_cpu(cpu)
11461 lpfc_present_cpu++;
11463 error = pci_register_driver(&lpfc_driver);
11465 fc_release_transport(lpfc_transport_template);
11466 fc_release_transport(lpfc_vport_transport_template);
11473 * lpfc_exit - lpfc module removal routine
11475 * This routine is invoked when the lpfc module is removed from the kernel.
11476 * The special kernel macro module_exit() is used to indicate the role of
11477 * this routine to the kernel as lpfc module exit point.
11482 misc_deregister(&lpfc_mgmt_dev);
11483 pci_unregister_driver(&lpfc_driver);
11484 fc_release_transport(lpfc_transport_template);
11485 fc_release_transport(lpfc_vport_transport_template);
11486 if (_dump_buf_data) {
11487 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
11488 "_dump_buf_data at 0x%p\n",
11489 (1L << _dump_buf_data_order), _dump_buf_data);
11490 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
11493 if (_dump_buf_dif) {
11494 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
11495 "_dump_buf_dif at 0x%p\n",
11496 (1L << _dump_buf_dif_order), _dump_buf_dif);
11497 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
11499 kfree(lpfc_used_cpu);
11500 idr_destroy(&lpfc_hba_index);
11503 module_init(lpfc_init);
11504 module_exit(lpfc_exit);
11505 MODULE_LICENSE("GPL");
11506 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
11507 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
11508 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);