1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2012 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/delay.h>
24 #include <linux/dma-mapping.h>
25 #include <linux/idr.h>
26 #include <linux/interrupt.h>
27 #include <linux/module.h>
28 #include <linux/kthread.h>
29 #include <linux/pci.h>
30 #include <linux/spinlock.h>
31 #include <linux/ctype.h>
32 #include <linux/aer.h>
33 #include <linux/slab.h>
34 #include <linux/firmware.h>
35 #include <linux/miscdevice.h>
36 #include <linux/percpu.h>
38 #include <scsi/scsi.h>
39 #include <scsi/scsi_device.h>
40 #include <scsi/scsi_host.h>
41 #include <scsi/scsi_transport_fc.h>
46 #include "lpfc_sli4.h"
48 #include "lpfc_disc.h"
49 #include "lpfc_scsi.h"
51 #include "lpfc_logmsg.h"
52 #include "lpfc_crtn.h"
53 #include "lpfc_vport.h"
54 #include "lpfc_version.h"
57 unsigned long _dump_buf_data_order;
59 unsigned long _dump_buf_dif_order;
60 spinlock_t _dump_buf_lock;
62 /* Used when mapping IRQ vectors in a driver centric manner */
63 uint16_t lpfc_used_cpu[LPFC_MAX_CPU];
65 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
66 static int lpfc_post_rcv_buf(struct lpfc_hba *);
67 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
68 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
69 static int lpfc_setup_endian_order(struct lpfc_hba *);
70 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
71 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
72 static void lpfc_init_sgl_list(struct lpfc_hba *);
73 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
74 static void lpfc_free_active_sgl(struct lpfc_hba *);
75 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
76 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
77 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
78 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
79 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
80 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
81 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
83 static struct scsi_transport_template *lpfc_transport_template = NULL;
84 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
85 static DEFINE_IDR(lpfc_hba_index);
88 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
89 * @phba: pointer to lpfc hba data structure.
91 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
92 * mailbox command. It retrieves the revision information from the HBA and
93 * collects the Vital Product Data (VPD) about the HBA for preparing the
94 * configuration of the HBA.
98 * -ERESTART - requests the SLI layer to reset the HBA and try again.
99 * Any other value - indicates an error.
102 lpfc_config_port_prep(struct lpfc_hba *phba)
104 lpfc_vpd_t *vp = &phba->vpd;
108 char *lpfc_vpd_data = NULL;
110 static char licensed[56] =
111 "key unlock for use with gnu public licensed code only\0";
112 static int init_key = 1;
114 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
116 phba->link_state = LPFC_HBA_ERROR;
121 phba->link_state = LPFC_INIT_MBX_CMDS;
123 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
125 uint32_t *ptext = (uint32_t *) licensed;
127 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
128 *ptext = cpu_to_be32(*ptext);
132 lpfc_read_nv(phba, pmb);
133 memset((char*)mb->un.varRDnvp.rsvd3, 0,
134 sizeof (mb->un.varRDnvp.rsvd3));
135 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
138 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
140 if (rc != MBX_SUCCESS) {
141 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
142 "0324 Config Port initialization "
143 "error, mbxCmd x%x READ_NVPARM, "
145 mb->mbxCommand, mb->mbxStatus);
146 mempool_free(pmb, phba->mbox_mem_pool);
149 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
151 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
155 phba->sli3_options = 0x0;
157 /* Setup and issue mailbox READ REV command */
158 lpfc_read_rev(phba, pmb);
159 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
160 if (rc != MBX_SUCCESS) {
161 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
162 "0439 Adapter failed to init, mbxCmd x%x "
163 "READ_REV, mbxStatus x%x\n",
164 mb->mbxCommand, mb->mbxStatus);
165 mempool_free( pmb, phba->mbox_mem_pool);
171 * The value of rr must be 1 since the driver set the cv field to 1.
172 * This setting requires the FW to set all revision fields.
174 if (mb->un.varRdRev.rr == 0) {
176 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
177 "0440 Adapter failed to init, READ_REV has "
178 "missing revision information.\n");
179 mempool_free(pmb, phba->mbox_mem_pool);
183 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
184 mempool_free(pmb, phba->mbox_mem_pool);
188 /* Save information as VPD data */
190 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
191 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
192 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
193 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
194 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
195 vp->rev.biuRev = mb->un.varRdRev.biuRev;
196 vp->rev.smRev = mb->un.varRdRev.smRev;
197 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
198 vp->rev.endecRev = mb->un.varRdRev.endecRev;
199 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
200 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
201 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
202 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
203 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
204 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
206 /* If the sli feature level is less then 9, we must
207 * tear down all RPIs and VPIs on link down if NPIV
210 if (vp->rev.feaLevelHigh < 9)
211 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
213 if (lpfc_is_LC_HBA(phba->pcidev->device))
214 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
215 sizeof (phba->RandomData));
217 /* Get adapter VPD information */
218 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
222 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
223 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
225 if (rc != MBX_SUCCESS) {
226 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
227 "0441 VPD not present on adapter, "
228 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
229 mb->mbxCommand, mb->mbxStatus);
230 mb->un.varDmp.word_cnt = 0;
232 /* dump mem may return a zero when finished or we got a
233 * mailbox error, either way we are done.
235 if (mb->un.varDmp.word_cnt == 0)
237 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
238 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
239 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
240 lpfc_vpd_data + offset,
241 mb->un.varDmp.word_cnt);
242 offset += mb->un.varDmp.word_cnt;
243 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
244 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
246 kfree(lpfc_vpd_data);
248 mempool_free(pmb, phba->mbox_mem_pool);
253 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
254 * @phba: pointer to lpfc hba data structure.
255 * @pmboxq: pointer to the driver internal queue element for mailbox command.
257 * This is the completion handler for driver's configuring asynchronous event
258 * mailbox command to the device. If the mailbox command returns successfully,
259 * it will set internal async event support flag to 1; otherwise, it will
260 * set internal async event support flag to 0.
263 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
265 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
266 phba->temp_sensor_support = 1;
268 phba->temp_sensor_support = 0;
269 mempool_free(pmboxq, phba->mbox_mem_pool);
274 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
275 * @phba: pointer to lpfc hba data structure.
276 * @pmboxq: pointer to the driver internal queue element for mailbox command.
278 * This is the completion handler for dump mailbox command for getting
279 * wake up parameters. When this command complete, the response contain
280 * Option rom version of the HBA. This function translate the version number
281 * into a human readable string and store it in OptionROMVersion.
284 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
287 uint32_t prog_id_word;
289 /* character array used for decoding dist type. */
290 char dist_char[] = "nabx";
292 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
293 mempool_free(pmboxq, phba->mbox_mem_pool);
297 prg = (struct prog_id *) &prog_id_word;
299 /* word 7 contain option rom version */
300 prog_id_word = pmboxq->u.mb.un.varWords[7];
302 /* Decode the Option rom version word to a readable string */
304 dist = dist_char[prg->dist];
306 if ((prg->dist == 3) && (prg->num == 0))
307 sprintf(phba->OptionROMVersion, "%d.%d%d",
308 prg->ver, prg->rev, prg->lev);
310 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
311 prg->ver, prg->rev, prg->lev,
313 mempool_free(pmboxq, phba->mbox_mem_pool);
318 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
319 * cfg_soft_wwnn, cfg_soft_wwpn
320 * @vport: pointer to lpfc vport data structure.
327 lpfc_update_vport_wwn(struct lpfc_vport *vport)
329 /* If the soft name exists then update it using the service params */
330 if (vport->phba->cfg_soft_wwnn)
331 u64_to_wwn(vport->phba->cfg_soft_wwnn,
332 vport->fc_sparam.nodeName.u.wwn);
333 if (vport->phba->cfg_soft_wwpn)
334 u64_to_wwn(vport->phba->cfg_soft_wwpn,
335 vport->fc_sparam.portName.u.wwn);
338 * If the name is empty or there exists a soft name
339 * then copy the service params name, otherwise use the fc name
341 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
342 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
343 sizeof(struct lpfc_name));
345 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
346 sizeof(struct lpfc_name));
348 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
349 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
350 sizeof(struct lpfc_name));
352 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
353 sizeof(struct lpfc_name));
357 * lpfc_config_port_post - Perform lpfc initialization after config port
358 * @phba: pointer to lpfc hba data structure.
360 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
361 * command call. It performs all internal resource and state setups on the
362 * port: post IOCB buffers, enable appropriate host interrupt attentions,
363 * ELS ring timers, etc.
367 * Any other value - error.
370 lpfc_config_port_post(struct lpfc_hba *phba)
372 struct lpfc_vport *vport = phba->pport;
373 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
376 struct lpfc_dmabuf *mp;
377 struct lpfc_sli *psli = &phba->sli;
378 uint32_t status, timeout;
382 spin_lock_irq(&phba->hbalock);
384 * If the Config port completed correctly the HBA is not
385 * over heated any more.
387 if (phba->over_temp_state == HBA_OVER_TEMP)
388 phba->over_temp_state = HBA_NORMAL_TEMP;
389 spin_unlock_irq(&phba->hbalock);
391 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
393 phba->link_state = LPFC_HBA_ERROR;
398 /* Get login parameters for NID. */
399 rc = lpfc_read_sparam(phba, pmb, 0);
401 mempool_free(pmb, phba->mbox_mem_pool);
406 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
407 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
408 "0448 Adapter failed init, mbxCmd x%x "
409 "READ_SPARM mbxStatus x%x\n",
410 mb->mbxCommand, mb->mbxStatus);
411 phba->link_state = LPFC_HBA_ERROR;
412 mp = (struct lpfc_dmabuf *) pmb->context1;
413 mempool_free(pmb, phba->mbox_mem_pool);
414 lpfc_mbuf_free(phba, mp->virt, mp->phys);
419 mp = (struct lpfc_dmabuf *) pmb->context1;
421 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
422 lpfc_mbuf_free(phba, mp->virt, mp->phys);
424 pmb->context1 = NULL;
425 lpfc_update_vport_wwn(vport);
427 /* Update the fc_host data structures with new wwn. */
428 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
429 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
430 fc_host_max_npiv_vports(shost) = phba->max_vpi;
432 /* If no serial number in VPD data, use low 6 bytes of WWNN */
433 /* This should be consolidated into parse_vpd ? - mr */
434 if (phba->SerialNumber[0] == 0) {
437 outptr = &vport->fc_nodename.u.s.IEEE[0];
438 for (i = 0; i < 12; i++) {
440 j = ((status & 0xf0) >> 4);
442 phba->SerialNumber[i] =
443 (char)((uint8_t) 0x30 + (uint8_t) j);
445 phba->SerialNumber[i] =
446 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
450 phba->SerialNumber[i] =
451 (char)((uint8_t) 0x30 + (uint8_t) j);
453 phba->SerialNumber[i] =
454 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
458 lpfc_read_config(phba, pmb);
460 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
461 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
462 "0453 Adapter failed to init, mbxCmd x%x "
463 "READ_CONFIG, mbxStatus x%x\n",
464 mb->mbxCommand, mb->mbxStatus);
465 phba->link_state = LPFC_HBA_ERROR;
466 mempool_free( pmb, phba->mbox_mem_pool);
470 /* Check if the port is disabled */
471 lpfc_sli_read_link_ste(phba);
473 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
474 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
475 phba->cfg_hba_queue_depth =
476 (mb->un.varRdConfig.max_xri + 1) -
477 lpfc_sli4_get_els_iocb_cnt(phba);
479 phba->lmt = mb->un.varRdConfig.lmt;
481 /* Get the default values for Model Name and Description */
482 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
484 phba->link_state = LPFC_LINK_DOWN;
486 /* Only process IOCBs on ELS ring till hba_state is READY */
487 if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
488 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
489 if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
490 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
491 if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
492 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
494 /* Post receive buffers for desired rings */
495 if (phba->sli_rev != 3)
496 lpfc_post_rcv_buf(phba);
499 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
501 if (phba->intr_type == MSIX) {
502 rc = lpfc_config_msi(phba, pmb);
504 mempool_free(pmb, phba->mbox_mem_pool);
507 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
508 if (rc != MBX_SUCCESS) {
509 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
510 "0352 Config MSI mailbox command "
511 "failed, mbxCmd x%x, mbxStatus x%x\n",
512 pmb->u.mb.mbxCommand,
513 pmb->u.mb.mbxStatus);
514 mempool_free(pmb, phba->mbox_mem_pool);
519 spin_lock_irq(&phba->hbalock);
520 /* Initialize ERATT handling flag */
521 phba->hba_flag &= ~HBA_ERATT_HANDLED;
523 /* Enable appropriate host interrupts */
524 if (lpfc_readl(phba->HCregaddr, &status)) {
525 spin_unlock_irq(&phba->hbalock);
528 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
529 if (psli->num_rings > 0)
530 status |= HC_R0INT_ENA;
531 if (psli->num_rings > 1)
532 status |= HC_R1INT_ENA;
533 if (psli->num_rings > 2)
534 status |= HC_R2INT_ENA;
535 if (psli->num_rings > 3)
536 status |= HC_R3INT_ENA;
538 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
539 (phba->cfg_poll & DISABLE_FCP_RING_INT))
540 status &= ~(HC_R0INT_ENA);
542 writel(status, phba->HCregaddr);
543 readl(phba->HCregaddr); /* flush */
544 spin_unlock_irq(&phba->hbalock);
546 /* Set up ring-0 (ELS) timer */
547 timeout = phba->fc_ratov * 2;
548 mod_timer(&vport->els_tmofunc,
549 jiffies + msecs_to_jiffies(1000 * timeout));
550 /* Set up heart beat (HB) timer */
551 mod_timer(&phba->hb_tmofunc,
552 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
553 phba->hb_outstanding = 0;
554 phba->last_completion_time = jiffies;
555 /* Set up error attention (ERATT) polling timer */
556 mod_timer(&phba->eratt_poll,
557 jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
559 if (phba->hba_flag & LINK_DISABLED) {
560 lpfc_printf_log(phba,
562 "2598 Adapter Link is disabled.\n");
563 lpfc_down_link(phba, pmb);
564 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
565 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
566 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
567 lpfc_printf_log(phba,
569 "2599 Adapter failed to issue DOWN_LINK"
570 " mbox command rc 0x%x\n", rc);
572 mempool_free(pmb, phba->mbox_mem_pool);
575 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
576 mempool_free(pmb, phba->mbox_mem_pool);
577 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
581 /* MBOX buffer will be freed in mbox compl */
582 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
584 phba->link_state = LPFC_HBA_ERROR;
588 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
589 pmb->mbox_cmpl = lpfc_config_async_cmpl;
590 pmb->vport = phba->pport;
591 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
593 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
594 lpfc_printf_log(phba,
597 "0456 Adapter failed to issue "
598 "ASYNCEVT_ENABLE mbox status x%x\n",
600 mempool_free(pmb, phba->mbox_mem_pool);
603 /* Get Option rom version */
604 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
606 phba->link_state = LPFC_HBA_ERROR;
610 lpfc_dump_wakeup_param(phba, pmb);
611 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
612 pmb->vport = phba->pport;
613 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
615 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
616 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
617 "to get Option ROM version status x%x\n", rc);
618 mempool_free(pmb, phba->mbox_mem_pool);
625 * lpfc_hba_init_link - Initialize the FC link
626 * @phba: pointer to lpfc hba data structure.
627 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
629 * This routine will issue the INIT_LINK mailbox command call.
630 * It is available to other drivers through the lpfc_hba data
631 * structure for use as a delayed link up mechanism with the
632 * module parameter lpfc_suppress_link_up.
636 * Any other value - error
639 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
641 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
645 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
646 * @phba: pointer to lpfc hba data structure.
647 * @fc_topology: desired fc topology.
648 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
650 * This routine will issue the INIT_LINK mailbox command call.
651 * It is available to other drivers through the lpfc_hba data
652 * structure for use as a delayed link up mechanism with the
653 * module parameter lpfc_suppress_link_up.
657 * Any other value - error
660 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
663 struct lpfc_vport *vport = phba->pport;
668 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
670 phba->link_state = LPFC_HBA_ERROR;
676 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
677 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
678 !(phba->lmt & LMT_1Gb)) ||
679 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
680 !(phba->lmt & LMT_2Gb)) ||
681 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
682 !(phba->lmt & LMT_4Gb)) ||
683 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
684 !(phba->lmt & LMT_8Gb)) ||
685 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
686 !(phba->lmt & LMT_10Gb)) ||
687 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
688 !(phba->lmt & LMT_16Gb))) {
689 /* Reset link speed to auto */
690 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
691 "1302 Invalid speed for this board:%d "
692 "Reset link speed to auto.\n",
693 phba->cfg_link_speed);
694 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
696 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
697 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
698 if (phba->sli_rev < LPFC_SLI_REV4)
699 lpfc_set_loopback_flag(phba);
700 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
701 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
702 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
703 "0498 Adapter failed to init, mbxCmd x%x "
704 "INIT_LINK, mbxStatus x%x\n",
705 mb->mbxCommand, mb->mbxStatus);
706 if (phba->sli_rev <= LPFC_SLI_REV3) {
707 /* Clear all interrupt enable conditions */
708 writel(0, phba->HCregaddr);
709 readl(phba->HCregaddr); /* flush */
710 /* Clear all pending interrupts */
711 writel(0xffffffff, phba->HAregaddr);
712 readl(phba->HAregaddr); /* flush */
714 phba->link_state = LPFC_HBA_ERROR;
715 if (rc != MBX_BUSY || flag == MBX_POLL)
716 mempool_free(pmb, phba->mbox_mem_pool);
719 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
720 if (flag == MBX_POLL)
721 mempool_free(pmb, phba->mbox_mem_pool);
727 * lpfc_hba_down_link - this routine downs the FC link
728 * @phba: pointer to lpfc hba data structure.
729 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
731 * This routine will issue the DOWN_LINK mailbox command call.
732 * It is available to other drivers through the lpfc_hba data
733 * structure for use to stop the link.
737 * Any other value - error
740 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
745 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
747 phba->link_state = LPFC_HBA_ERROR;
751 lpfc_printf_log(phba,
753 "0491 Adapter Link is disabled.\n");
754 lpfc_down_link(phba, pmb);
755 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
756 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
757 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
758 lpfc_printf_log(phba,
760 "2522 Adapter failed to issue DOWN_LINK"
761 " mbox command rc 0x%x\n", rc);
763 mempool_free(pmb, phba->mbox_mem_pool);
766 if (flag == MBX_POLL)
767 mempool_free(pmb, phba->mbox_mem_pool);
773 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
774 * @phba: pointer to lpfc HBA data structure.
776 * This routine will do LPFC uninitialization before the HBA is reset when
777 * bringing down the SLI Layer.
781 * Any other value - error.
784 lpfc_hba_down_prep(struct lpfc_hba *phba)
786 struct lpfc_vport **vports;
789 if (phba->sli_rev <= LPFC_SLI_REV3) {
790 /* Disable interrupts */
791 writel(0, phba->HCregaddr);
792 readl(phba->HCregaddr); /* flush */
795 if (phba->pport->load_flag & FC_UNLOADING)
796 lpfc_cleanup_discovery_resources(phba->pport);
798 vports = lpfc_create_vport_work_array(phba);
800 for (i = 0; i <= phba->max_vports &&
801 vports[i] != NULL; i++)
802 lpfc_cleanup_discovery_resources(vports[i]);
803 lpfc_destroy_vport_work_array(phba, vports);
809 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
810 * @phba: pointer to lpfc HBA data structure.
812 * This routine will do uninitialization after the HBA is reset when bring
813 * down the SLI Layer.
817 * Any other value - error.
820 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
822 struct lpfc_sli *psli = &phba->sli;
823 struct lpfc_sli_ring *pring;
824 struct lpfc_dmabuf *mp, *next_mp;
825 LIST_HEAD(completions);
828 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
829 lpfc_sli_hbqbuf_free_all(phba);
831 /* Cleanup preposted buffers on the ELS ring */
832 pring = &psli->ring[LPFC_ELS_RING];
833 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
835 pring->postbufq_cnt--;
836 lpfc_mbuf_free(phba, mp->virt, mp->phys);
841 spin_lock_irq(&phba->hbalock);
842 for (i = 0; i < psli->num_rings; i++) {
843 pring = &psli->ring[i];
845 /* At this point in time the HBA is either reset or DOA. Either
846 * way, nothing should be on txcmplq as it will NEVER complete.
848 list_splice_init(&pring->txcmplq, &completions);
849 spin_unlock_irq(&phba->hbalock);
851 /* Cancel all the IOCBs from the completions list */
852 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
855 lpfc_sli_abort_iocb_ring(phba, pring);
856 spin_lock_irq(&phba->hbalock);
858 spin_unlock_irq(&phba->hbalock);
864 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
865 * @phba: pointer to lpfc HBA data structure.
867 * This routine will do uninitialization after the HBA is reset when bring
868 * down the SLI Layer.
872 * Any other value - error.
875 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
877 struct lpfc_scsi_buf *psb, *psb_next;
880 unsigned long iflag = 0;
881 struct lpfc_sglq *sglq_entry = NULL;
883 ret = lpfc_hba_down_post_s3(phba);
886 /* At this point in time the HBA is either reset or DOA. Either
887 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
888 * on the lpfc_sgl_list so that it can either be freed if the
889 * driver is unloading or reposted if the driver is restarting
892 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
894 /* abts_sgl_list_lock required because worker thread uses this
897 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
898 list_for_each_entry(sglq_entry,
899 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
900 sglq_entry->state = SGL_FREED;
902 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
903 &phba->sli4_hba.lpfc_sgl_list);
904 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
905 /* abts_scsi_buf_list_lock required because worker thread uses this
908 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
909 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
911 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
912 spin_unlock_irq(&phba->hbalock);
914 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
916 psb->status = IOSTAT_SUCCESS;
918 spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
919 list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
920 spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
925 * lpfc_hba_down_post - Wrapper func for hba down post routine
926 * @phba: pointer to lpfc HBA data structure.
928 * This routine wraps the actual SLI3 or SLI4 routine for performing
929 * uninitialization after the HBA is reset when bring down the SLI Layer.
933 * Any other value - error.
936 lpfc_hba_down_post(struct lpfc_hba *phba)
938 return (*phba->lpfc_hba_down_post)(phba);
942 * lpfc_hb_timeout - The HBA-timer timeout handler
943 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
945 * This is the HBA-timer timeout handler registered to the lpfc driver. When
946 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
947 * work-port-events bitmap and the worker thread is notified. This timeout
948 * event will be used by the worker thread to invoke the actual timeout
949 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
950 * be performed in the timeout handler and the HBA timeout event bit shall
951 * be cleared by the worker thread after it has taken the event bitmap out.
954 lpfc_hb_timeout(unsigned long ptr)
956 struct lpfc_hba *phba;
960 phba = (struct lpfc_hba *)ptr;
962 /* Check for heart beat timeout conditions */
963 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
964 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
966 phba->pport->work_port_events |= WORKER_HB_TMO;
967 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
969 /* Tell the worker thread there is work to do */
971 lpfc_worker_wake_up(phba);
976 * lpfc_rrq_timeout - The RRQ-timer timeout handler
977 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
979 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
980 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
981 * work-port-events bitmap and the worker thread is notified. This timeout
982 * event will be used by the worker thread to invoke the actual timeout
983 * handler routine, lpfc_rrq_handler. Any periodical operations will
984 * be performed in the timeout handler and the RRQ timeout event bit shall
985 * be cleared by the worker thread after it has taken the event bitmap out.
988 lpfc_rrq_timeout(unsigned long ptr)
990 struct lpfc_hba *phba;
993 phba = (struct lpfc_hba *)ptr;
994 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
995 phba->hba_flag |= HBA_RRQ_ACTIVE;
996 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
997 lpfc_worker_wake_up(phba);
1001 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1002 * @phba: pointer to lpfc hba data structure.
1003 * @pmboxq: pointer to the driver internal queue element for mailbox command.
1005 * This is the callback function to the lpfc heart-beat mailbox command.
1006 * If configured, the lpfc driver issues the heart-beat mailbox command to
1007 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1008 * heart-beat mailbox command is issued, the driver shall set up heart-beat
1009 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1010 * heart-beat outstanding state. Once the mailbox command comes back and
1011 * no error conditions detected, the heart-beat mailbox command timer is
1012 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1013 * state is cleared for the next heart-beat. If the timer expired with the
1014 * heart-beat outstanding state set, the driver will put the HBA offline.
1017 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1019 unsigned long drvr_flag;
1021 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1022 phba->hb_outstanding = 0;
1023 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1025 /* Check and reset heart-beat timer is necessary */
1026 mempool_free(pmboxq, phba->mbox_mem_pool);
1027 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1028 !(phba->link_state == LPFC_HBA_ERROR) &&
1029 !(phba->pport->load_flag & FC_UNLOADING))
1030 mod_timer(&phba->hb_tmofunc,
1032 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1037 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1038 * @phba: pointer to lpfc hba data structure.
1040 * This is the actual HBA-timer timeout handler to be invoked by the worker
1041 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1042 * handler performs any periodic operations needed for the device. If such
1043 * periodic event has already been attended to either in the interrupt handler
1044 * or by processing slow-ring or fast-ring events within the HBA-timer
1045 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1046 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1047 * is configured and there is no heart-beat mailbox command outstanding, a
1048 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1049 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1053 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1055 struct lpfc_vport **vports;
1056 LPFC_MBOXQ_t *pmboxq;
1057 struct lpfc_dmabuf *buf_ptr;
1059 struct lpfc_sli *psli = &phba->sli;
1060 LIST_HEAD(completions);
1062 vports = lpfc_create_vport_work_array(phba);
1064 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1065 lpfc_rcv_seq_check_edtov(vports[i]);
1066 lpfc_destroy_vport_work_array(phba, vports);
1068 if ((phba->link_state == LPFC_HBA_ERROR) ||
1069 (phba->pport->load_flag & FC_UNLOADING) ||
1070 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1073 spin_lock_irq(&phba->pport->work_port_lock);
1075 if (time_after(phba->last_completion_time +
1076 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1078 spin_unlock_irq(&phba->pport->work_port_lock);
1079 if (!phba->hb_outstanding)
1080 mod_timer(&phba->hb_tmofunc,
1082 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1084 mod_timer(&phba->hb_tmofunc,
1086 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1089 spin_unlock_irq(&phba->pport->work_port_lock);
1091 if (phba->elsbuf_cnt &&
1092 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1093 spin_lock_irq(&phba->hbalock);
1094 list_splice_init(&phba->elsbuf, &completions);
1095 phba->elsbuf_cnt = 0;
1096 phba->elsbuf_prev_cnt = 0;
1097 spin_unlock_irq(&phba->hbalock);
1099 while (!list_empty(&completions)) {
1100 list_remove_head(&completions, buf_ptr,
1101 struct lpfc_dmabuf, list);
1102 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1106 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1108 /* If there is no heart beat outstanding, issue a heartbeat command */
1109 if (phba->cfg_enable_hba_heartbeat) {
1110 if (!phba->hb_outstanding) {
1111 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1112 (list_empty(&psli->mboxq))) {
1113 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1116 mod_timer(&phba->hb_tmofunc,
1118 msecs_to_jiffies(1000 *
1119 LPFC_HB_MBOX_INTERVAL));
1123 lpfc_heart_beat(phba, pmboxq);
1124 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1125 pmboxq->vport = phba->pport;
1126 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1129 if (retval != MBX_BUSY &&
1130 retval != MBX_SUCCESS) {
1131 mempool_free(pmboxq,
1132 phba->mbox_mem_pool);
1133 mod_timer(&phba->hb_tmofunc,
1135 msecs_to_jiffies(1000 *
1136 LPFC_HB_MBOX_INTERVAL));
1139 phba->skipped_hb = 0;
1140 phba->hb_outstanding = 1;
1141 } else if (time_before_eq(phba->last_completion_time,
1142 phba->skipped_hb)) {
1143 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1144 "2857 Last completion time not "
1145 " updated in %d ms\n",
1146 jiffies_to_msecs(jiffies
1147 - phba->last_completion_time));
1149 phba->skipped_hb = jiffies;
1151 mod_timer(&phba->hb_tmofunc,
1153 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1157 * If heart beat timeout called with hb_outstanding set
1158 * we need to give the hb mailbox cmd a chance to
1161 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1162 "0459 Adapter heartbeat still out"
1163 "standing:last compl time was %d ms.\n",
1164 jiffies_to_msecs(jiffies
1165 - phba->last_completion_time));
1166 mod_timer(&phba->hb_tmofunc,
1168 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1174 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1175 * @phba: pointer to lpfc hba data structure.
1177 * This routine is called to bring the HBA offline when HBA hardware error
1178 * other than Port Error 6 has been detected.
1181 lpfc_offline_eratt(struct lpfc_hba *phba)
1183 struct lpfc_sli *psli = &phba->sli;
1185 spin_lock_irq(&phba->hbalock);
1186 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1187 spin_unlock_irq(&phba->hbalock);
1188 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1191 lpfc_reset_barrier(phba);
1192 spin_lock_irq(&phba->hbalock);
1193 lpfc_sli_brdreset(phba);
1194 spin_unlock_irq(&phba->hbalock);
1195 lpfc_hba_down_post(phba);
1196 lpfc_sli_brdready(phba, HS_MBRDY);
1197 lpfc_unblock_mgmt_io(phba);
1198 phba->link_state = LPFC_HBA_ERROR;
1203 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1204 * @phba: pointer to lpfc hba data structure.
1206 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1207 * other than Port Error 6 has been detected.
1210 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1212 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1214 lpfc_sli4_brdreset(phba);
1215 lpfc_hba_down_post(phba);
1216 lpfc_sli4_post_status_check(phba);
1217 lpfc_unblock_mgmt_io(phba);
1218 phba->link_state = LPFC_HBA_ERROR;
1222 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1223 * @phba: pointer to lpfc hba data structure.
1225 * This routine is invoked to handle the deferred HBA hardware error
1226 * conditions. This type of error is indicated by HBA by setting ER1
1227 * and another ER bit in the host status register. The driver will
1228 * wait until the ER1 bit clears before handling the error condition.
1231 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1233 uint32_t old_host_status = phba->work_hs;
1234 struct lpfc_sli_ring *pring;
1235 struct lpfc_sli *psli = &phba->sli;
1237 /* If the pci channel is offline, ignore possible errors,
1238 * since we cannot communicate with the pci card anyway.
1240 if (pci_channel_offline(phba->pcidev)) {
1241 spin_lock_irq(&phba->hbalock);
1242 phba->hba_flag &= ~DEFER_ERATT;
1243 spin_unlock_irq(&phba->hbalock);
1247 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1248 "0479 Deferred Adapter Hardware Error "
1249 "Data: x%x x%x x%x\n",
1251 phba->work_status[0], phba->work_status[1]);
1253 spin_lock_irq(&phba->hbalock);
1254 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1255 spin_unlock_irq(&phba->hbalock);
1259 * Firmware stops when it triggred erratt. That could cause the I/Os
1260 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1261 * SCSI layer retry it after re-establishing link.
1263 pring = &psli->ring[psli->fcp_ring];
1264 lpfc_sli_abort_iocb_ring(phba, pring);
1267 * There was a firmware error. Take the hba offline and then
1268 * attempt to restart it.
1270 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1273 /* Wait for the ER1 bit to clear.*/
1274 while (phba->work_hs & HS_FFER1) {
1276 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1277 phba->work_hs = UNPLUG_ERR ;
1280 /* If driver is unloading let the worker thread continue */
1281 if (phba->pport->load_flag & FC_UNLOADING) {
1288 * This is to ptrotect against a race condition in which
1289 * first write to the host attention register clear the
1290 * host status register.
1292 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1293 phba->work_hs = old_host_status & ~HS_FFER1;
1295 spin_lock_irq(&phba->hbalock);
1296 phba->hba_flag &= ~DEFER_ERATT;
1297 spin_unlock_irq(&phba->hbalock);
1298 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1299 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1303 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1305 struct lpfc_board_event_header board_event;
1306 struct Scsi_Host *shost;
1308 board_event.event_type = FC_REG_BOARD_EVENT;
1309 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1310 shost = lpfc_shost_from_vport(phba->pport);
1311 fc_host_post_vendor_event(shost, fc_get_event_number(),
1312 sizeof(board_event),
1313 (char *) &board_event,
1318 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1319 * @phba: pointer to lpfc hba data structure.
1321 * This routine is invoked to handle the following HBA hardware error
1323 * 1 - HBA error attention interrupt
1324 * 2 - DMA ring index out of range
1325 * 3 - Mailbox command came back as unknown
1328 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1330 struct lpfc_vport *vport = phba->pport;
1331 struct lpfc_sli *psli = &phba->sli;
1332 struct lpfc_sli_ring *pring;
1333 uint32_t event_data;
1334 unsigned long temperature;
1335 struct temp_event temp_event_data;
1336 struct Scsi_Host *shost;
1338 /* If the pci channel is offline, ignore possible errors,
1339 * since we cannot communicate with the pci card anyway.
1341 if (pci_channel_offline(phba->pcidev)) {
1342 spin_lock_irq(&phba->hbalock);
1343 phba->hba_flag &= ~DEFER_ERATT;
1344 spin_unlock_irq(&phba->hbalock);
1348 /* If resets are disabled then leave the HBA alone and return */
1349 if (!phba->cfg_enable_hba_reset)
1352 /* Send an internal error event to mgmt application */
1353 lpfc_board_errevt_to_mgmt(phba);
1355 if (phba->hba_flag & DEFER_ERATT)
1356 lpfc_handle_deferred_eratt(phba);
1358 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1359 if (phba->work_hs & HS_FFER6)
1360 /* Re-establishing Link */
1361 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1362 "1301 Re-establishing Link "
1363 "Data: x%x x%x x%x\n",
1364 phba->work_hs, phba->work_status[0],
1365 phba->work_status[1]);
1366 if (phba->work_hs & HS_FFER8)
1367 /* Device Zeroization */
1368 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1369 "2861 Host Authentication device "
1370 "zeroization Data:x%x x%x x%x\n",
1371 phba->work_hs, phba->work_status[0],
1372 phba->work_status[1]);
1374 spin_lock_irq(&phba->hbalock);
1375 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1376 spin_unlock_irq(&phba->hbalock);
1379 * Firmware stops when it triggled erratt with HS_FFER6.
1380 * That could cause the I/Os dropped by the firmware.
1381 * Error iocb (I/O) on txcmplq and let the SCSI layer
1382 * retry it after re-establishing link.
1384 pring = &psli->ring[psli->fcp_ring];
1385 lpfc_sli_abort_iocb_ring(phba, pring);
1388 * There was a firmware error. Take the hba offline and then
1389 * attempt to restart it.
1391 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1393 lpfc_sli_brdrestart(phba);
1394 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1395 lpfc_unblock_mgmt_io(phba);
1398 lpfc_unblock_mgmt_io(phba);
1399 } else if (phba->work_hs & HS_CRIT_TEMP) {
1400 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1401 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1402 temp_event_data.event_code = LPFC_CRIT_TEMP;
1403 temp_event_data.data = (uint32_t)temperature;
1405 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1406 "0406 Adapter maximum temperature exceeded "
1407 "(%ld), taking this port offline "
1408 "Data: x%x x%x x%x\n",
1409 temperature, phba->work_hs,
1410 phba->work_status[0], phba->work_status[1]);
1412 shost = lpfc_shost_from_vport(phba->pport);
1413 fc_host_post_vendor_event(shost, fc_get_event_number(),
1414 sizeof(temp_event_data),
1415 (char *) &temp_event_data,
1416 SCSI_NL_VID_TYPE_PCI
1417 | PCI_VENDOR_ID_EMULEX);
1419 spin_lock_irq(&phba->hbalock);
1420 phba->over_temp_state = HBA_OVER_TEMP;
1421 spin_unlock_irq(&phba->hbalock);
1422 lpfc_offline_eratt(phba);
1425 /* The if clause above forces this code path when the status
1426 * failure is a value other than FFER6. Do not call the offline
1427 * twice. This is the adapter hardware error path.
1429 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1430 "0457 Adapter Hardware Error "
1431 "Data: x%x x%x x%x\n",
1433 phba->work_status[0], phba->work_status[1]);
1435 event_data = FC_REG_DUMP_EVENT;
1436 shost = lpfc_shost_from_vport(vport);
1437 fc_host_post_vendor_event(shost, fc_get_event_number(),
1438 sizeof(event_data), (char *) &event_data,
1439 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1441 lpfc_offline_eratt(phba);
1447 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1448 * @phba: pointer to lpfc hba data structure.
1449 * @mbx_action: flag for mailbox shutdown action.
1451 * This routine is invoked to perform an SLI4 port PCI function reset in
1452 * response to port status register polling attention. It waits for port
1453 * status register (ERR, RDY, RN) bits before proceeding with function reset.
1454 * During this process, interrupt vectors are freed and later requested
1455 * for handling possible port resource change.
1458 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action)
1464 * On error status condition, driver need to wait for port
1465 * ready before performing reset.
1467 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1469 /* need reset: attempt for port recovery */
1470 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1471 "2887 Reset Needed: Attempting Port "
1473 lpfc_offline_prep(phba, mbx_action);
1475 /* release interrupt for possible resource change */
1476 lpfc_sli4_disable_intr(phba);
1477 lpfc_sli_brdrestart(phba);
1478 /* request and enable interrupt */
1479 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1480 if (intr_mode == LPFC_INTR_ERROR) {
1481 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1482 "3175 Failed to enable interrupt\n");
1485 phba->intr_mode = intr_mode;
1487 rc = lpfc_online(phba);
1489 lpfc_unblock_mgmt_io(phba);
1495 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1496 * @phba: pointer to lpfc hba data structure.
1498 * This routine is invoked to handle the SLI4 HBA hardware error attention
1502 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1504 struct lpfc_vport *vport = phba->pport;
1505 uint32_t event_data;
1506 struct Scsi_Host *shost;
1508 struct lpfc_register portstat_reg = {0};
1509 uint32_t reg_err1, reg_err2;
1510 uint32_t uerrlo_reg, uemasklo_reg;
1511 uint32_t pci_rd_rc1, pci_rd_rc2;
1514 /* If the pci channel is offline, ignore possible errors, since
1515 * we cannot communicate with the pci card anyway.
1517 if (pci_channel_offline(phba->pcidev))
1519 /* If resets are disabled then leave the HBA alone and return */
1520 if (!phba->cfg_enable_hba_reset)
1523 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1525 case LPFC_SLI_INTF_IF_TYPE_0:
1526 pci_rd_rc1 = lpfc_readl(
1527 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1529 pci_rd_rc2 = lpfc_readl(
1530 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1532 /* consider PCI bus read error as pci_channel_offline */
1533 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1535 lpfc_sli4_offline_eratt(phba);
1537 case LPFC_SLI_INTF_IF_TYPE_2:
1538 pci_rd_rc1 = lpfc_readl(
1539 phba->sli4_hba.u.if_type2.STATUSregaddr,
1540 &portstat_reg.word0);
1541 /* consider PCI bus read error as pci_channel_offline */
1542 if (pci_rd_rc1 == -EIO) {
1543 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1544 "3151 PCI bus read access failure: x%x\n",
1545 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1548 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1549 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1550 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1551 /* TODO: Register for Overtemp async events. */
1552 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1553 "2889 Port Overtemperature event, "
1554 "taking port offline\n");
1555 spin_lock_irq(&phba->hbalock);
1556 phba->over_temp_state = HBA_OVER_TEMP;
1557 spin_unlock_irq(&phba->hbalock);
1558 lpfc_sli4_offline_eratt(phba);
1561 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1562 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART)
1563 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1564 "3143 Port Down: Firmware Restarted\n");
1565 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1566 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1567 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1568 "3144 Port Down: Debug Dump\n");
1569 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1570 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1571 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1572 "3145 Port Down: Provisioning\n");
1574 /* Check port status register for function reset */
1575 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT);
1577 /* don't report event on forced debug dump */
1578 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1579 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1584 /* fall through for not able to recover */
1585 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1586 "3152 Unrecoverable error, bring the port "
1588 lpfc_sli4_offline_eratt(phba);
1590 case LPFC_SLI_INTF_IF_TYPE_1:
1594 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1595 "3123 Report dump event to upper layer\n");
1596 /* Send an internal error event to mgmt application */
1597 lpfc_board_errevt_to_mgmt(phba);
1599 event_data = FC_REG_DUMP_EVENT;
1600 shost = lpfc_shost_from_vport(vport);
1601 fc_host_post_vendor_event(shost, fc_get_event_number(),
1602 sizeof(event_data), (char *) &event_data,
1603 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1607 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1608 * @phba: pointer to lpfc HBA data structure.
1610 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1611 * routine from the API jump table function pointer from the lpfc_hba struct.
1615 * Any other value - error.
1618 lpfc_handle_eratt(struct lpfc_hba *phba)
1620 (*phba->lpfc_handle_eratt)(phba);
1624 * lpfc_handle_latt - The HBA link event handler
1625 * @phba: pointer to lpfc hba data structure.
1627 * This routine is invoked from the worker thread to handle a HBA host
1628 * attention link event.
1631 lpfc_handle_latt(struct lpfc_hba *phba)
1633 struct lpfc_vport *vport = phba->pport;
1634 struct lpfc_sli *psli = &phba->sli;
1636 volatile uint32_t control;
1637 struct lpfc_dmabuf *mp;
1640 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1643 goto lpfc_handle_latt_err_exit;
1646 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1649 goto lpfc_handle_latt_free_pmb;
1652 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1655 goto lpfc_handle_latt_free_mp;
1658 /* Cleanup any outstanding ELS commands */
1659 lpfc_els_flush_all_cmd(phba);
1661 psli->slistat.link_event++;
1662 lpfc_read_topology(phba, pmb, mp);
1663 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1665 /* Block ELS IOCBs until we have processed this mbox command */
1666 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1667 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1668 if (rc == MBX_NOT_FINISHED) {
1670 goto lpfc_handle_latt_free_mbuf;
1673 /* Clear Link Attention in HA REG */
1674 spin_lock_irq(&phba->hbalock);
1675 writel(HA_LATT, phba->HAregaddr);
1676 readl(phba->HAregaddr); /* flush */
1677 spin_unlock_irq(&phba->hbalock);
1681 lpfc_handle_latt_free_mbuf:
1682 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1683 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1684 lpfc_handle_latt_free_mp:
1686 lpfc_handle_latt_free_pmb:
1687 mempool_free(pmb, phba->mbox_mem_pool);
1688 lpfc_handle_latt_err_exit:
1689 /* Enable Link attention interrupts */
1690 spin_lock_irq(&phba->hbalock);
1691 psli->sli_flag |= LPFC_PROCESS_LA;
1692 control = readl(phba->HCregaddr);
1693 control |= HC_LAINT_ENA;
1694 writel(control, phba->HCregaddr);
1695 readl(phba->HCregaddr); /* flush */
1697 /* Clear Link Attention in HA REG */
1698 writel(HA_LATT, phba->HAregaddr);
1699 readl(phba->HAregaddr); /* flush */
1700 spin_unlock_irq(&phba->hbalock);
1701 lpfc_linkdown(phba);
1702 phba->link_state = LPFC_HBA_ERROR;
1704 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1705 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1711 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1712 * @phba: pointer to lpfc hba data structure.
1713 * @vpd: pointer to the vital product data.
1714 * @len: length of the vital product data in bytes.
1716 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1717 * an array of characters. In this routine, the ModelName, ProgramType, and
1718 * ModelDesc, etc. fields of the phba data structure will be populated.
1721 * 0 - pointer to the VPD passed in is NULL
1725 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1727 uint8_t lenlo, lenhi;
1737 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1738 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1739 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1741 while (!finished && (index < (len - 4))) {
1742 switch (vpd[index]) {
1750 i = ((((unsigned short)lenhi) << 8) + lenlo);
1759 Length = ((((unsigned short)lenhi) << 8) + lenlo);
1760 if (Length > len - index)
1761 Length = len - index;
1762 while (Length > 0) {
1763 /* Look for Serial Number */
1764 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1771 phba->SerialNumber[j++] = vpd[index++];
1775 phba->SerialNumber[j] = 0;
1778 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1779 phba->vpd_flag |= VPD_MODEL_DESC;
1786 phba->ModelDesc[j++] = vpd[index++];
1790 phba->ModelDesc[j] = 0;
1793 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1794 phba->vpd_flag |= VPD_MODEL_NAME;
1801 phba->ModelName[j++] = vpd[index++];
1805 phba->ModelName[j] = 0;
1808 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1809 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1816 phba->ProgramType[j++] = vpd[index++];
1820 phba->ProgramType[j] = 0;
1823 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1824 phba->vpd_flag |= VPD_PORT;
1831 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1832 (phba->sli4_hba.pport_name_sta ==
1833 LPFC_SLI4_PPNAME_GET)) {
1837 phba->Port[j++] = vpd[index++];
1841 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1842 (phba->sli4_hba.pport_name_sta ==
1843 LPFC_SLI4_PPNAME_NON))
1870 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1871 * @phba: pointer to lpfc hba data structure.
1872 * @mdp: pointer to the data structure to hold the derived model name.
1873 * @descp: pointer to the data structure to hold the derived description.
1875 * This routine retrieves HBA's description based on its registered PCI device
1876 * ID. The @descp passed into this function points to an array of 256 chars. It
1877 * shall be returned with the model name, maximum speed, and the host bus type.
1878 * The @mdp passed into this function points to an array of 80 chars. When the
1879 * function returns, the @mdp will be filled with the model name.
1882 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1885 uint16_t dev_id = phba->pcidev->device;
1888 int oneConnect = 0; /* default is not a oneConnect */
1893 } m = {"<Unknown>", "", ""};
1895 if (mdp && mdp[0] != '\0'
1896 && descp && descp[0] != '\0')
1899 if (phba->lmt & LMT_16Gb)
1901 else if (phba->lmt & LMT_10Gb)
1903 else if (phba->lmt & LMT_8Gb)
1905 else if (phba->lmt & LMT_4Gb)
1907 else if (phba->lmt & LMT_2Gb)
1909 else if (phba->lmt & LMT_1Gb)
1917 case PCI_DEVICE_ID_FIREFLY:
1918 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1920 case PCI_DEVICE_ID_SUPERFLY:
1921 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1922 m = (typeof(m)){"LP7000", "PCI",
1923 "Fibre Channel Adapter"};
1925 m = (typeof(m)){"LP7000E", "PCI",
1926 "Fibre Channel Adapter"};
1928 case PCI_DEVICE_ID_DRAGONFLY:
1929 m = (typeof(m)){"LP8000", "PCI",
1930 "Fibre Channel Adapter"};
1932 case PCI_DEVICE_ID_CENTAUR:
1933 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1934 m = (typeof(m)){"LP9002", "PCI",
1935 "Fibre Channel Adapter"};
1937 m = (typeof(m)){"LP9000", "PCI",
1938 "Fibre Channel Adapter"};
1940 case PCI_DEVICE_ID_RFLY:
1941 m = (typeof(m)){"LP952", "PCI",
1942 "Fibre Channel Adapter"};
1944 case PCI_DEVICE_ID_PEGASUS:
1945 m = (typeof(m)){"LP9802", "PCI-X",
1946 "Fibre Channel Adapter"};
1948 case PCI_DEVICE_ID_THOR:
1949 m = (typeof(m)){"LP10000", "PCI-X",
1950 "Fibre Channel Adapter"};
1952 case PCI_DEVICE_ID_VIPER:
1953 m = (typeof(m)){"LPX1000", "PCI-X",
1954 "Fibre Channel Adapter"};
1956 case PCI_DEVICE_ID_PFLY:
1957 m = (typeof(m)){"LP982", "PCI-X",
1958 "Fibre Channel Adapter"};
1960 case PCI_DEVICE_ID_TFLY:
1961 m = (typeof(m)){"LP1050", "PCI-X",
1962 "Fibre Channel Adapter"};
1964 case PCI_DEVICE_ID_HELIOS:
1965 m = (typeof(m)){"LP11000", "PCI-X2",
1966 "Fibre Channel Adapter"};
1968 case PCI_DEVICE_ID_HELIOS_SCSP:
1969 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1970 "Fibre Channel Adapter"};
1972 case PCI_DEVICE_ID_HELIOS_DCSP:
1973 m = (typeof(m)){"LP11002-SP", "PCI-X2",
1974 "Fibre Channel Adapter"};
1976 case PCI_DEVICE_ID_NEPTUNE:
1977 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1979 case PCI_DEVICE_ID_NEPTUNE_SCSP:
1980 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1982 case PCI_DEVICE_ID_NEPTUNE_DCSP:
1983 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1985 case PCI_DEVICE_ID_BMID:
1986 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1988 case PCI_DEVICE_ID_BSMB:
1989 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1991 case PCI_DEVICE_ID_ZEPHYR:
1992 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1994 case PCI_DEVICE_ID_ZEPHYR_SCSP:
1995 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1997 case PCI_DEVICE_ID_ZEPHYR_DCSP:
1998 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2001 case PCI_DEVICE_ID_ZMID:
2002 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2004 case PCI_DEVICE_ID_ZSMB:
2005 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2007 case PCI_DEVICE_ID_LP101:
2008 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
2010 case PCI_DEVICE_ID_LP10000S:
2011 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
2013 case PCI_DEVICE_ID_LP11000S:
2014 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
2016 case PCI_DEVICE_ID_LPE11000S:
2017 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
2019 case PCI_DEVICE_ID_SAT:
2020 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2022 case PCI_DEVICE_ID_SAT_MID:
2023 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2025 case PCI_DEVICE_ID_SAT_SMB:
2026 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2028 case PCI_DEVICE_ID_SAT_DCSP:
2029 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2031 case PCI_DEVICE_ID_SAT_SCSP:
2032 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2034 case PCI_DEVICE_ID_SAT_S:
2035 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2037 case PCI_DEVICE_ID_HORNET:
2038 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
2041 case PCI_DEVICE_ID_PROTEUS_VF:
2042 m = (typeof(m)){"LPev12000", "PCIe IOV",
2043 "Fibre Channel Adapter"};
2045 case PCI_DEVICE_ID_PROTEUS_PF:
2046 m = (typeof(m)){"LPev12000", "PCIe IOV",
2047 "Fibre Channel Adapter"};
2049 case PCI_DEVICE_ID_PROTEUS_S:
2050 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2051 "Fibre Channel Adapter"};
2053 case PCI_DEVICE_ID_TIGERSHARK:
2055 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2057 case PCI_DEVICE_ID_TOMCAT:
2059 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2061 case PCI_DEVICE_ID_FALCON:
2062 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2063 "EmulexSecure Fibre"};
2065 case PCI_DEVICE_ID_BALIUS:
2066 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2067 "Fibre Channel Adapter"};
2069 case PCI_DEVICE_ID_LANCER_FC:
2070 case PCI_DEVICE_ID_LANCER_FC_VF:
2071 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2073 case PCI_DEVICE_ID_LANCER_FCOE:
2074 case PCI_DEVICE_ID_LANCER_FCOE_VF:
2076 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2078 case PCI_DEVICE_ID_SKYHAWK:
2079 case PCI_DEVICE_ID_SKYHAWK_VF:
2081 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2084 m = (typeof(m)){"Unknown", "", ""};
2088 if (mdp && mdp[0] == '\0')
2089 snprintf(mdp, 79,"%s", m.name);
2091 * oneConnect hba requires special processing, they are all initiators
2092 * and we put the port number on the end
2094 if (descp && descp[0] == '\0') {
2096 snprintf(descp, 255,
2097 "Emulex OneConnect %s, %s Initiator %s",
2100 else if (max_speed == 0)
2101 snprintf(descp, 255,
2103 m.name, m.bus, m.function);
2105 snprintf(descp, 255,
2106 "Emulex %s %d%s %s %s",
2107 m.name, max_speed, (GE) ? "GE" : "Gb",
2113 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2114 * @phba: pointer to lpfc hba data structure.
2115 * @pring: pointer to a IOCB ring.
2116 * @cnt: the number of IOCBs to be posted to the IOCB ring.
2118 * This routine posts a given number of IOCBs with the associated DMA buffer
2119 * descriptors specified by the cnt argument to the given IOCB ring.
2122 * The number of IOCBs NOT able to be posted to the IOCB ring.
2125 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2128 struct lpfc_iocbq *iocb;
2129 struct lpfc_dmabuf *mp1, *mp2;
2131 cnt += pring->missbufcnt;
2133 /* While there are buffers to post */
2135 /* Allocate buffer for command iocb */
2136 iocb = lpfc_sli_get_iocbq(phba);
2138 pring->missbufcnt = cnt;
2143 /* 2 buffers can be posted per command */
2144 /* Allocate buffer to post */
2145 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2147 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2148 if (!mp1 || !mp1->virt) {
2150 lpfc_sli_release_iocbq(phba, iocb);
2151 pring->missbufcnt = cnt;
2155 INIT_LIST_HEAD(&mp1->list);
2156 /* Allocate buffer to post */
2158 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2160 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2162 if (!mp2 || !mp2->virt) {
2164 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2166 lpfc_sli_release_iocbq(phba, iocb);
2167 pring->missbufcnt = cnt;
2171 INIT_LIST_HEAD(&mp2->list);
2176 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2177 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2178 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2179 icmd->ulpBdeCount = 1;
2182 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2183 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2184 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2186 icmd->ulpBdeCount = 2;
2189 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2192 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2194 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2198 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2202 lpfc_sli_release_iocbq(phba, iocb);
2203 pring->missbufcnt = cnt;
2206 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2208 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2210 pring->missbufcnt = 0;
2215 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2216 * @phba: pointer to lpfc hba data structure.
2218 * This routine posts initial receive IOCB buffers to the ELS ring. The
2219 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2223 * 0 - success (currently always success)
2226 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2228 struct lpfc_sli *psli = &phba->sli;
2230 /* Ring 0, ELS / CT buffers */
2231 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2232 /* Ring 2 - FCP no buffers needed */
2237 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2240 * lpfc_sha_init - Set up initial array of hash table entries
2241 * @HashResultPointer: pointer to an array as hash table.
2243 * This routine sets up the initial values to the array of hash table entries
2247 lpfc_sha_init(uint32_t * HashResultPointer)
2249 HashResultPointer[0] = 0x67452301;
2250 HashResultPointer[1] = 0xEFCDAB89;
2251 HashResultPointer[2] = 0x98BADCFE;
2252 HashResultPointer[3] = 0x10325476;
2253 HashResultPointer[4] = 0xC3D2E1F0;
2257 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2258 * @HashResultPointer: pointer to an initial/result hash table.
2259 * @HashWorkingPointer: pointer to an working hash table.
2261 * This routine iterates an initial hash table pointed by @HashResultPointer
2262 * with the values from the working hash table pointeed by @HashWorkingPointer.
2263 * The results are putting back to the initial hash table, returned through
2264 * the @HashResultPointer as the result hash table.
2267 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2271 uint32_t A, B, C, D, E;
2274 HashWorkingPointer[t] =
2276 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2278 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2279 } while (++t <= 79);
2281 A = HashResultPointer[0];
2282 B = HashResultPointer[1];
2283 C = HashResultPointer[2];
2284 D = HashResultPointer[3];
2285 E = HashResultPointer[4];
2289 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2290 } else if (t < 40) {
2291 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2292 } else if (t < 60) {
2293 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2295 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2297 TEMP += S(5, A) + E + HashWorkingPointer[t];
2303 } while (++t <= 79);
2305 HashResultPointer[0] += A;
2306 HashResultPointer[1] += B;
2307 HashResultPointer[2] += C;
2308 HashResultPointer[3] += D;
2309 HashResultPointer[4] += E;
2314 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2315 * @RandomChallenge: pointer to the entry of host challenge random number array.
2316 * @HashWorking: pointer to the entry of the working hash array.
2318 * This routine calculates the working hash array referred by @HashWorking
2319 * from the challenge random numbers associated with the host, referred by
2320 * @RandomChallenge. The result is put into the entry of the working hash
2321 * array and returned by reference through @HashWorking.
2324 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2326 *HashWorking = (*RandomChallenge ^ *HashWorking);
2330 * lpfc_hba_init - Perform special handling for LC HBA initialization
2331 * @phba: pointer to lpfc hba data structure.
2332 * @hbainit: pointer to an array of unsigned 32-bit integers.
2334 * This routine performs the special handling for LC HBA initialization.
2337 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2340 uint32_t *HashWorking;
2341 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2343 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2347 HashWorking[0] = HashWorking[78] = *pwwnn++;
2348 HashWorking[1] = HashWorking[79] = *pwwnn;
2350 for (t = 0; t < 7; t++)
2351 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2353 lpfc_sha_init(hbainit);
2354 lpfc_sha_iterate(hbainit, HashWorking);
2359 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2360 * @vport: pointer to a virtual N_Port data structure.
2362 * This routine performs the necessary cleanups before deleting the @vport.
2363 * It invokes the discovery state machine to perform necessary state
2364 * transitions and to release the ndlps associated with the @vport. Note,
2365 * the physical port is treated as @vport 0.
2368 lpfc_cleanup(struct lpfc_vport *vport)
2370 struct lpfc_hba *phba = vport->phba;
2371 struct lpfc_nodelist *ndlp, *next_ndlp;
2374 if (phba->link_state > LPFC_LINK_DOWN)
2375 lpfc_port_link_failure(vport);
2377 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2378 if (!NLP_CHK_NODE_ACT(ndlp)) {
2379 ndlp = lpfc_enable_node(vport, ndlp,
2380 NLP_STE_UNUSED_NODE);
2383 spin_lock_irq(&phba->ndlp_lock);
2384 NLP_SET_FREE_REQ(ndlp);
2385 spin_unlock_irq(&phba->ndlp_lock);
2386 /* Trigger the release of the ndlp memory */
2390 spin_lock_irq(&phba->ndlp_lock);
2391 if (NLP_CHK_FREE_REQ(ndlp)) {
2392 /* The ndlp should not be in memory free mode already */
2393 spin_unlock_irq(&phba->ndlp_lock);
2396 /* Indicate request for freeing ndlp memory */
2397 NLP_SET_FREE_REQ(ndlp);
2398 spin_unlock_irq(&phba->ndlp_lock);
2400 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2401 ndlp->nlp_DID == Fabric_DID) {
2402 /* Just free up ndlp with Fabric_DID for vports */
2407 /* take care of nodes in unused state before the state
2408 * machine taking action.
2410 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2415 if (ndlp->nlp_type & NLP_FABRIC)
2416 lpfc_disc_state_machine(vport, ndlp, NULL,
2417 NLP_EVT_DEVICE_RECOVERY);
2419 lpfc_disc_state_machine(vport, ndlp, NULL,
2423 /* At this point, ALL ndlp's should be gone
2424 * because of the previous NLP_EVT_DEVICE_RM.
2425 * Lets wait for this to happen, if needed.
2427 while (!list_empty(&vport->fc_nodes)) {
2429 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2430 "0233 Nodelist not empty\n");
2431 list_for_each_entry_safe(ndlp, next_ndlp,
2432 &vport->fc_nodes, nlp_listp) {
2433 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2435 "0282 did:x%x ndlp:x%p "
2436 "usgmap:x%x refcnt:%d\n",
2437 ndlp->nlp_DID, (void *)ndlp,
2440 &ndlp->kref.refcount));
2445 /* Wait for any activity on ndlps to settle */
2448 lpfc_cleanup_vports_rrqs(vport, NULL);
2452 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2453 * @vport: pointer to a virtual N_Port data structure.
2455 * This routine stops all the timers associated with a @vport. This function
2456 * is invoked before disabling or deleting a @vport. Note that the physical
2457 * port is treated as @vport 0.
2460 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2462 del_timer_sync(&vport->els_tmofunc);
2463 del_timer_sync(&vport->fc_fdmitmo);
2464 del_timer_sync(&vport->delayed_disc_tmo);
2465 lpfc_can_disctmo(vport);
2470 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2471 * @phba: pointer to lpfc hba data structure.
2473 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2474 * caller of this routine should already hold the host lock.
2477 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2479 /* Clear pending FCF rediscovery wait flag */
2480 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2482 /* Now, try to stop the timer */
2483 del_timer(&phba->fcf.redisc_wait);
2487 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2488 * @phba: pointer to lpfc hba data structure.
2490 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2491 * checks whether the FCF rediscovery wait timer is pending with the host
2492 * lock held before proceeding with disabling the timer and clearing the
2493 * wait timer pendig flag.
2496 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2498 spin_lock_irq(&phba->hbalock);
2499 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2500 /* FCF rediscovery timer already fired or stopped */
2501 spin_unlock_irq(&phba->hbalock);
2504 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2505 /* Clear failover in progress flags */
2506 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2507 spin_unlock_irq(&phba->hbalock);
2511 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2512 * @phba: pointer to lpfc hba data structure.
2514 * This routine stops all the timers associated with a HBA. This function is
2515 * invoked before either putting a HBA offline or unloading the driver.
2518 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2520 lpfc_stop_vport_timers(phba->pport);
2521 del_timer_sync(&phba->sli.mbox_tmo);
2522 del_timer_sync(&phba->fabric_block_timer);
2523 del_timer_sync(&phba->eratt_poll);
2524 del_timer_sync(&phba->hb_tmofunc);
2525 if (phba->sli_rev == LPFC_SLI_REV4) {
2526 del_timer_sync(&phba->rrq_tmr);
2527 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2529 phba->hb_outstanding = 0;
2531 switch (phba->pci_dev_grp) {
2532 case LPFC_PCI_DEV_LP:
2533 /* Stop any LightPulse device specific driver timers */
2534 del_timer_sync(&phba->fcp_poll_timer);
2536 case LPFC_PCI_DEV_OC:
2537 /* Stop any OneConnect device sepcific driver timers */
2538 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2541 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2542 "0297 Invalid device group (x%x)\n",
2550 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2551 * @phba: pointer to lpfc hba data structure.
2553 * This routine marks a HBA's management interface as blocked. Once the HBA's
2554 * management interface is marked as blocked, all the user space access to
2555 * the HBA, whether they are from sysfs interface or libdfc interface will
2556 * all be blocked. The HBA is set to block the management interface when the
2557 * driver prepares the HBA interface for online or offline.
2560 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2562 unsigned long iflag;
2563 uint8_t actcmd = MBX_HEARTBEAT;
2564 unsigned long timeout;
2566 spin_lock_irqsave(&phba->hbalock, iflag);
2567 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2568 spin_unlock_irqrestore(&phba->hbalock, iflag);
2569 if (mbx_action == LPFC_MBX_NO_WAIT)
2571 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2572 spin_lock_irqsave(&phba->hbalock, iflag);
2573 if (phba->sli.mbox_active) {
2574 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2575 /* Determine how long we might wait for the active mailbox
2576 * command to be gracefully completed by firmware.
2578 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2579 phba->sli.mbox_active) * 1000) + jiffies;
2581 spin_unlock_irqrestore(&phba->hbalock, iflag);
2583 /* Wait for the outstnading mailbox command to complete */
2584 while (phba->sli.mbox_active) {
2585 /* Check active mailbox complete status every 2ms */
2587 if (time_after(jiffies, timeout)) {
2588 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2589 "2813 Mgmt IO is Blocked %x "
2590 "- mbox cmd %x still active\n",
2591 phba->sli.sli_flag, actcmd);
2598 * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2599 * @phba: pointer to lpfc hba data structure.
2601 * Allocate RPIs for all active remote nodes. This is needed whenever
2602 * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2603 * is to fixup the temporary rpi assignments.
2606 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2608 struct lpfc_nodelist *ndlp, *next_ndlp;
2609 struct lpfc_vport **vports;
2612 if (phba->sli_rev != LPFC_SLI_REV4)
2615 vports = lpfc_create_vport_work_array(phba);
2616 if (vports != NULL) {
2617 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2618 if (vports[i]->load_flag & FC_UNLOADING)
2621 list_for_each_entry_safe(ndlp, next_ndlp,
2622 &vports[i]->fc_nodes,
2624 if (NLP_CHK_NODE_ACT(ndlp))
2626 lpfc_sli4_alloc_rpi(phba);
2630 lpfc_destroy_vport_work_array(phba, vports);
2634 * lpfc_online - Initialize and bring a HBA online
2635 * @phba: pointer to lpfc hba data structure.
2637 * This routine initializes the HBA and brings a HBA online. During this
2638 * process, the management interface is blocked to prevent user space access
2639 * to the HBA interfering with the driver initialization.
2646 lpfc_online(struct lpfc_hba *phba)
2648 struct lpfc_vport *vport;
2649 struct lpfc_vport **vports;
2651 bool vpis_cleared = false;
2655 vport = phba->pport;
2657 if (!(vport->fc_flag & FC_OFFLINE_MODE))
2660 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2661 "0458 Bring Adapter online\n");
2663 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2665 if (!lpfc_sli_queue_setup(phba)) {
2666 lpfc_unblock_mgmt_io(phba);
2670 if (phba->sli_rev == LPFC_SLI_REV4) {
2671 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2672 lpfc_unblock_mgmt_io(phba);
2675 spin_lock_irq(&phba->hbalock);
2676 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2677 vpis_cleared = true;
2678 spin_unlock_irq(&phba->hbalock);
2680 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2681 lpfc_unblock_mgmt_io(phba);
2686 vports = lpfc_create_vport_work_array(phba);
2688 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2689 struct Scsi_Host *shost;
2690 shost = lpfc_shost_from_vport(vports[i]);
2691 spin_lock_irq(shost->host_lock);
2692 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2693 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2694 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2695 if (phba->sli_rev == LPFC_SLI_REV4) {
2696 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2697 if ((vpis_cleared) &&
2698 (vports[i]->port_type !=
2699 LPFC_PHYSICAL_PORT))
2702 spin_unlock_irq(shost->host_lock);
2704 lpfc_destroy_vport_work_array(phba, vports);
2706 lpfc_unblock_mgmt_io(phba);
2711 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2712 * @phba: pointer to lpfc hba data structure.
2714 * This routine marks a HBA's management interface as not blocked. Once the
2715 * HBA's management interface is marked as not blocked, all the user space
2716 * access to the HBA, whether they are from sysfs interface or libdfc
2717 * interface will be allowed. The HBA is set to block the management interface
2718 * when the driver prepares the HBA interface for online or offline and then
2719 * set to unblock the management interface afterwards.
2722 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2724 unsigned long iflag;
2726 spin_lock_irqsave(&phba->hbalock, iflag);
2727 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2728 spin_unlock_irqrestore(&phba->hbalock, iflag);
2732 * lpfc_offline_prep - Prepare a HBA to be brought offline
2733 * @phba: pointer to lpfc hba data structure.
2735 * This routine is invoked to prepare a HBA to be brought offline. It performs
2736 * unregistration login to all the nodes on all vports and flushes the mailbox
2737 * queue to make it ready to be brought offline.
2740 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2742 struct lpfc_vport *vport = phba->pport;
2743 struct lpfc_nodelist *ndlp, *next_ndlp;
2744 struct lpfc_vport **vports;
2745 struct Scsi_Host *shost;
2748 if (vport->fc_flag & FC_OFFLINE_MODE)
2751 lpfc_block_mgmt_io(phba, mbx_action);
2753 lpfc_linkdown(phba);
2755 /* Issue an unreg_login to all nodes on all vports */
2756 vports = lpfc_create_vport_work_array(phba);
2757 if (vports != NULL) {
2758 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2759 if (vports[i]->load_flag & FC_UNLOADING)
2761 shost = lpfc_shost_from_vport(vports[i]);
2762 spin_lock_irq(shost->host_lock);
2763 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2764 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2765 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2766 spin_unlock_irq(shost->host_lock);
2768 shost = lpfc_shost_from_vport(vports[i]);
2769 list_for_each_entry_safe(ndlp, next_ndlp,
2770 &vports[i]->fc_nodes,
2772 if (!NLP_CHK_NODE_ACT(ndlp))
2774 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2776 if (ndlp->nlp_type & NLP_FABRIC) {
2777 lpfc_disc_state_machine(vports[i], ndlp,
2778 NULL, NLP_EVT_DEVICE_RECOVERY);
2779 lpfc_disc_state_machine(vports[i], ndlp,
2780 NULL, NLP_EVT_DEVICE_RM);
2782 spin_lock_irq(shost->host_lock);
2783 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2784 spin_unlock_irq(shost->host_lock);
2786 * Whenever an SLI4 port goes offline, free the
2787 * RPI. Get a new RPI when the adapter port
2788 * comes back online.
2790 if (phba->sli_rev == LPFC_SLI_REV4)
2791 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2792 lpfc_unreg_rpi(vports[i], ndlp);
2796 lpfc_destroy_vport_work_array(phba, vports);
2798 lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2802 * lpfc_offline - Bring a HBA offline
2803 * @phba: pointer to lpfc hba data structure.
2805 * This routine actually brings a HBA offline. It stops all the timers
2806 * associated with the HBA, brings down the SLI layer, and eventually
2807 * marks the HBA as in offline state for the upper layer protocol.
2810 lpfc_offline(struct lpfc_hba *phba)
2812 struct Scsi_Host *shost;
2813 struct lpfc_vport **vports;
2816 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2819 /* stop port and all timers associated with this hba */
2820 lpfc_stop_port(phba);
2821 vports = lpfc_create_vport_work_array(phba);
2823 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2824 lpfc_stop_vport_timers(vports[i]);
2825 lpfc_destroy_vport_work_array(phba, vports);
2826 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2827 "0460 Bring Adapter offline\n");
2828 /* Bring down the SLI Layer and cleanup. The HBA is offline
2830 lpfc_sli_hba_down(phba);
2831 spin_lock_irq(&phba->hbalock);
2833 spin_unlock_irq(&phba->hbalock);
2834 vports = lpfc_create_vport_work_array(phba);
2836 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2837 shost = lpfc_shost_from_vport(vports[i]);
2838 spin_lock_irq(shost->host_lock);
2839 vports[i]->work_port_events = 0;
2840 vports[i]->fc_flag |= FC_OFFLINE_MODE;
2841 spin_unlock_irq(shost->host_lock);
2843 lpfc_destroy_vport_work_array(phba, vports);
2847 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2848 * @phba: pointer to lpfc hba data structure.
2850 * This routine is to free all the SCSI buffers and IOCBs from the driver
2851 * list back to kernel. It is called from lpfc_pci_remove_one to free
2852 * the internal resources before the device is removed from the system.
2855 lpfc_scsi_free(struct lpfc_hba *phba)
2857 struct lpfc_scsi_buf *sb, *sb_next;
2858 struct lpfc_iocbq *io, *io_next;
2860 spin_lock_irq(&phba->hbalock);
2862 /* Release all the lpfc_scsi_bufs maintained by this host. */
2864 spin_lock(&phba->scsi_buf_list_put_lock);
2865 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
2867 list_del(&sb->list);
2868 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2871 phba->total_scsi_bufs--;
2873 spin_unlock(&phba->scsi_buf_list_put_lock);
2875 spin_lock(&phba->scsi_buf_list_get_lock);
2876 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
2878 list_del(&sb->list);
2879 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2882 phba->total_scsi_bufs--;
2884 spin_unlock(&phba->scsi_buf_list_get_lock);
2886 /* Release all the lpfc_iocbq entries maintained by this host. */
2887 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2888 list_del(&io->list);
2890 phba->total_iocbq_bufs--;
2893 spin_unlock_irq(&phba->hbalock);
2897 * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
2898 * @phba: pointer to lpfc hba data structure.
2900 * This routine first calculates the sizes of the current els and allocated
2901 * scsi sgl lists, and then goes through all sgls to updates the physical
2902 * XRIs assigned due to port function reset. During port initialization, the
2903 * current els and allocated scsi sgl lists are 0s.
2906 * 0 - successful (for now, it always returns 0)
2909 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
2911 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
2912 struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
2913 uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
2914 LIST_HEAD(els_sgl_list);
2915 LIST_HEAD(scsi_sgl_list);
2919 * update on pci function's els xri-sgl list
2921 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
2922 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
2923 /* els xri-sgl expanded */
2924 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
2925 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2926 "3157 ELS xri-sgl count increased from "
2927 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2929 /* allocate the additional els sgls */
2930 for (i = 0; i < xri_cnt; i++) {
2931 sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
2933 if (sglq_entry == NULL) {
2934 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2935 "2562 Failure to allocate an "
2936 "ELS sgl entry:%d\n", i);
2940 sglq_entry->buff_type = GEN_BUFF_TYPE;
2941 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
2943 if (sglq_entry->virt == NULL) {
2945 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2946 "2563 Failure to allocate an "
2947 "ELS mbuf:%d\n", i);
2951 sglq_entry->sgl = sglq_entry->virt;
2952 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
2953 sglq_entry->state = SGL_FREED;
2954 list_add_tail(&sglq_entry->list, &els_sgl_list);
2956 spin_lock_irq(&phba->hbalock);
2957 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
2958 spin_unlock_irq(&phba->hbalock);
2959 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
2960 /* els xri-sgl shrinked */
2961 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
2962 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2963 "3158 ELS xri-sgl count decreased from "
2964 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2966 spin_lock_irq(&phba->hbalock);
2967 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
2968 spin_unlock_irq(&phba->hbalock);
2969 /* release extra els sgls from list */
2970 for (i = 0; i < xri_cnt; i++) {
2971 list_remove_head(&els_sgl_list,
2972 sglq_entry, struct lpfc_sglq, list);
2974 lpfc_mbuf_free(phba, sglq_entry->virt,
2979 spin_lock_irq(&phba->hbalock);
2980 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
2981 spin_unlock_irq(&phba->hbalock);
2983 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2984 "3163 ELS xri-sgl count unchanged: %d\n",
2986 phba->sli4_hba.els_xri_cnt = els_xri_cnt;
2988 /* update xris to els sgls on the list */
2990 sglq_entry_next = NULL;
2991 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
2992 &phba->sli4_hba.lpfc_sgl_list, list) {
2993 lxri = lpfc_sli4_next_xritag(phba);
2994 if (lxri == NO_XRI) {
2995 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2996 "2400 Failed to allocate xri for "
3001 sglq_entry->sli4_lxritag = lxri;
3002 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3006 * update on pci function's allocated scsi xri-sgl list
3008 phba->total_scsi_bufs = 0;
3010 /* maximum number of xris available for scsi buffers */
3011 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3014 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3015 "2401 Current allocated SCSI xri-sgl count:%d, "
3016 "maximum SCSI xri count:%d\n",
3017 phba->sli4_hba.scsi_xri_cnt,
3018 phba->sli4_hba.scsi_xri_max);
3020 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3021 spin_lock_irq(&phba->scsi_buf_list_put_lock);
3022 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3023 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3024 spin_unlock_irq(&phba->scsi_buf_list_put_lock);
3025 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3027 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3028 /* max scsi xri shrinked below the allocated scsi buffers */
3029 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3030 phba->sli4_hba.scsi_xri_max;
3031 /* release the extra allocated scsi buffers */
3032 for (i = 0; i < scsi_xri_cnt; i++) {
3033 list_remove_head(&scsi_sgl_list, psb,
3034 struct lpfc_scsi_buf, list);
3035 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, psb->data,
3039 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3040 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3041 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3044 /* update xris associated to remaining allocated scsi buffers */
3047 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3048 lxri = lpfc_sli4_next_xritag(phba);
3049 if (lxri == NO_XRI) {
3050 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3051 "2560 Failed to allocate xri for "
3056 psb->cur_iocbq.sli4_lxritag = lxri;
3057 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3059 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3060 spin_lock_irq(&phba->scsi_buf_list_put_lock);
3061 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3062 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3063 spin_unlock_irq(&phba->scsi_buf_list_put_lock);
3064 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3069 lpfc_free_els_sgl_list(phba);
3070 lpfc_scsi_free(phba);
3075 * lpfc_create_port - Create an FC port
3076 * @phba: pointer to lpfc hba data structure.
3077 * @instance: a unique integer ID to this FC port.
3078 * @dev: pointer to the device data structure.
3080 * This routine creates a FC port for the upper layer protocol. The FC port
3081 * can be created on top of either a physical port or a virtual port provided
3082 * by the HBA. This routine also allocates a SCSI host data structure (shost)
3083 * and associates the FC port created before adding the shost into the SCSI
3087 * @vport - pointer to the virtual N_Port data structure.
3088 * NULL - port create failed.
3091 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3093 struct lpfc_vport *vport;
3094 struct Scsi_Host *shost;
3097 if (dev != &phba->pcidev->dev)
3098 shost = scsi_host_alloc(&lpfc_vport_template,
3099 sizeof(struct lpfc_vport));
3101 shost = scsi_host_alloc(&lpfc_template,
3102 sizeof(struct lpfc_vport));
3106 vport = (struct lpfc_vport *) shost->hostdata;
3108 vport->load_flag |= FC_LOADING;
3109 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3110 vport->fc_rscn_flush = 0;
3112 lpfc_get_vport_cfgparam(vport);
3113 shost->unique_id = instance;
3114 shost->max_id = LPFC_MAX_TARGET;
3115 shost->max_lun = vport->cfg_max_luns;
3116 shost->this_id = -1;
3117 shost->max_cmd_len = 16;
3118 if (phba->sli_rev == LPFC_SLI_REV4) {
3119 shost->dma_boundary =
3120 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3121 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3125 * Set initial can_queue value since 0 is no longer supported and
3126 * scsi_add_host will fail. This will be adjusted later based on the
3127 * max xri value determined in hba setup.
3129 shost->can_queue = phba->cfg_hba_queue_depth - 10;
3130 if (dev != &phba->pcidev->dev) {
3131 shost->transportt = lpfc_vport_transport_template;
3132 vport->port_type = LPFC_NPIV_PORT;
3134 shost->transportt = lpfc_transport_template;
3135 vport->port_type = LPFC_PHYSICAL_PORT;
3138 /* Initialize all internally managed lists. */
3139 INIT_LIST_HEAD(&vport->fc_nodes);
3140 INIT_LIST_HEAD(&vport->rcv_buffer_list);
3141 spin_lock_init(&vport->work_port_lock);
3143 init_timer(&vport->fc_disctmo);
3144 vport->fc_disctmo.function = lpfc_disc_timeout;
3145 vport->fc_disctmo.data = (unsigned long)vport;
3147 init_timer(&vport->fc_fdmitmo);
3148 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
3149 vport->fc_fdmitmo.data = (unsigned long)vport;
3151 init_timer(&vport->els_tmofunc);
3152 vport->els_tmofunc.function = lpfc_els_timeout;
3153 vport->els_tmofunc.data = (unsigned long)vport;
3155 init_timer(&vport->delayed_disc_tmo);
3156 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3157 vport->delayed_disc_tmo.data = (unsigned long)vport;
3159 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3163 spin_lock_irq(&phba->hbalock);
3164 list_add_tail(&vport->listentry, &phba->port_list);
3165 spin_unlock_irq(&phba->hbalock);
3169 scsi_host_put(shost);
3175 * destroy_port - destroy an FC port
3176 * @vport: pointer to an lpfc virtual N_Port data structure.
3178 * This routine destroys a FC port from the upper layer protocol. All the
3179 * resources associated with the port are released.
3182 destroy_port(struct lpfc_vport *vport)
3184 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3185 struct lpfc_hba *phba = vport->phba;
3187 lpfc_debugfs_terminate(vport);
3188 fc_remove_host(shost);
3189 scsi_remove_host(shost);
3191 spin_lock_irq(&phba->hbalock);
3192 list_del_init(&vport->listentry);
3193 spin_unlock_irq(&phba->hbalock);
3195 lpfc_cleanup(vport);
3200 * lpfc_get_instance - Get a unique integer ID
3202 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3203 * uses the kernel idr facility to perform the task.
3206 * instance - a unique integer ID allocated as the new instance.
3207 * -1 - lpfc get instance failed.
3210 lpfc_get_instance(void)
3214 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3215 return ret < 0 ? -1 : ret;
3219 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3220 * @shost: pointer to SCSI host data structure.
3221 * @time: elapsed time of the scan in jiffies.
3223 * This routine is called by the SCSI layer with a SCSI host to determine
3224 * whether the scan host is finished.
3226 * Note: there is no scan_start function as adapter initialization will have
3227 * asynchronously kicked off the link initialization.
3230 * 0 - SCSI host scan is not over yet.
3231 * 1 - SCSI host scan is over.
3233 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3235 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3236 struct lpfc_hba *phba = vport->phba;
3239 spin_lock_irq(shost->host_lock);
3241 if (vport->load_flag & FC_UNLOADING) {
3245 if (time >= msecs_to_jiffies(30 * 1000)) {
3246 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3247 "0461 Scanning longer than 30 "
3248 "seconds. Continuing initialization\n");
3252 if (time >= msecs_to_jiffies(15 * 1000) &&
3253 phba->link_state <= LPFC_LINK_DOWN) {
3254 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3255 "0465 Link down longer than 15 "
3256 "seconds. Continuing initialization\n");
3261 if (vport->port_state != LPFC_VPORT_READY)
3263 if (vport->num_disc_nodes || vport->fc_prli_sent)
3265 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3267 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3273 spin_unlock_irq(shost->host_lock);
3278 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3279 * @shost: pointer to SCSI host data structure.
3281 * This routine initializes a given SCSI host attributes on a FC port. The
3282 * SCSI host can be either on top of a physical port or a virtual port.
3284 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3286 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3287 struct lpfc_hba *phba = vport->phba;
3289 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
3292 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3293 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3294 fc_host_supported_classes(shost) = FC_COS_CLASS3;
3296 memset(fc_host_supported_fc4s(shost), 0,
3297 sizeof(fc_host_supported_fc4s(shost)));
3298 fc_host_supported_fc4s(shost)[2] = 1;
3299 fc_host_supported_fc4s(shost)[7] = 1;
3301 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3302 sizeof fc_host_symbolic_name(shost));
3304 fc_host_supported_speeds(shost) = 0;
3305 if (phba->lmt & LMT_16Gb)
3306 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3307 if (phba->lmt & LMT_10Gb)
3308 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3309 if (phba->lmt & LMT_8Gb)
3310 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3311 if (phba->lmt & LMT_4Gb)
3312 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3313 if (phba->lmt & LMT_2Gb)
3314 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3315 if (phba->lmt & LMT_1Gb)
3316 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3318 fc_host_maxframe_size(shost) =
3319 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3320 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3322 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3324 /* This value is also unchanging */
3325 memset(fc_host_active_fc4s(shost), 0,
3326 sizeof(fc_host_active_fc4s(shost)));
3327 fc_host_active_fc4s(shost)[2] = 1;
3328 fc_host_active_fc4s(shost)[7] = 1;
3330 fc_host_max_npiv_vports(shost) = phba->max_vpi;
3331 spin_lock_irq(shost->host_lock);
3332 vport->load_flag &= ~FC_LOADING;
3333 spin_unlock_irq(shost->host_lock);
3337 * lpfc_stop_port_s3 - Stop SLI3 device port
3338 * @phba: pointer to lpfc hba data structure.
3340 * This routine is invoked to stop an SLI3 device port, it stops the device
3341 * from generating interrupts and stops the device driver's timers for the
3345 lpfc_stop_port_s3(struct lpfc_hba *phba)
3347 /* Clear all interrupt enable conditions */
3348 writel(0, phba->HCregaddr);
3349 readl(phba->HCregaddr); /* flush */
3350 /* Clear all pending interrupts */
3351 writel(0xffffffff, phba->HAregaddr);
3352 readl(phba->HAregaddr); /* flush */
3354 /* Reset some HBA SLI setup states */
3355 lpfc_stop_hba_timers(phba);
3356 phba->pport->work_port_events = 0;
3360 * lpfc_stop_port_s4 - Stop SLI4 device port
3361 * @phba: pointer to lpfc hba data structure.
3363 * This routine is invoked to stop an SLI4 device port, it stops the device
3364 * from generating interrupts and stops the device driver's timers for the
3368 lpfc_stop_port_s4(struct lpfc_hba *phba)
3370 /* Reset some HBA SLI4 setup states */
3371 lpfc_stop_hba_timers(phba);
3372 phba->pport->work_port_events = 0;
3373 phba->sli4_hba.intr_enable = 0;
3377 * lpfc_stop_port - Wrapper function for stopping hba port
3378 * @phba: Pointer to HBA context object.
3380 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3381 * the API jump table function pointer from the lpfc_hba struct.
3384 lpfc_stop_port(struct lpfc_hba *phba)
3386 phba->lpfc_stop_port(phba);
3390 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3391 * @phba: Pointer to hba for which this call is being executed.
3393 * This routine starts the timer waiting for the FCF rediscovery to complete.
3396 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3398 unsigned long fcf_redisc_wait_tmo =
3399 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3400 /* Start fcf rediscovery wait period timer */
3401 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3402 spin_lock_irq(&phba->hbalock);
3403 /* Allow action to new fcf asynchronous event */
3404 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3405 /* Mark the FCF rediscovery pending state */
3406 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3407 spin_unlock_irq(&phba->hbalock);
3411 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3412 * @ptr: Map to lpfc_hba data structure pointer.
3414 * This routine is invoked when waiting for FCF table rediscover has been
3415 * timed out. If new FCF record(s) has (have) been discovered during the
3416 * wait period, a new FCF event shall be added to the FCOE async event
3417 * list, and then worker thread shall be waked up for processing from the
3418 * worker thread context.
3421 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3423 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3425 /* Don't send FCF rediscovery event if timer cancelled */
3426 spin_lock_irq(&phba->hbalock);
3427 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3428 spin_unlock_irq(&phba->hbalock);
3431 /* Clear FCF rediscovery timer pending flag */
3432 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3433 /* FCF rediscovery event to worker thread */
3434 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3435 spin_unlock_irq(&phba->hbalock);
3436 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3437 "2776 FCF rediscover quiescent timer expired\n");
3438 /* wake up worker thread */
3439 lpfc_worker_wake_up(phba);
3443 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3444 * @phba: pointer to lpfc hba data structure.
3445 * @acqe_link: pointer to the async link completion queue entry.
3447 * This routine is to parse the SLI4 link-attention link fault code and
3448 * translate it into the base driver's read link attention mailbox command
3451 * Return: Link-attention status in terms of base driver's coding.
3454 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3455 struct lpfc_acqe_link *acqe_link)
3457 uint16_t latt_fault;
3459 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3460 case LPFC_ASYNC_LINK_FAULT_NONE:
3461 case LPFC_ASYNC_LINK_FAULT_LOCAL:
3462 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3466 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3467 "0398 Invalid link fault code: x%x\n",
3468 bf_get(lpfc_acqe_link_fault, acqe_link));
3469 latt_fault = MBXERR_ERROR;
3476 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3477 * @phba: pointer to lpfc hba data structure.
3478 * @acqe_link: pointer to the async link completion queue entry.
3480 * This routine is to parse the SLI4 link attention type and translate it
3481 * into the base driver's link attention type coding.
3483 * Return: Link attention type in terms of base driver's coding.
3486 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3487 struct lpfc_acqe_link *acqe_link)
3491 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3492 case LPFC_ASYNC_LINK_STATUS_DOWN:
3493 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3494 att_type = LPFC_ATT_LINK_DOWN;
3496 case LPFC_ASYNC_LINK_STATUS_UP:
3497 /* Ignore physical link up events - wait for logical link up */
3498 att_type = LPFC_ATT_RESERVED;
3500 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3501 att_type = LPFC_ATT_LINK_UP;
3504 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3505 "0399 Invalid link attention type: x%x\n",
3506 bf_get(lpfc_acqe_link_status, acqe_link));
3507 att_type = LPFC_ATT_RESERVED;
3514 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3515 * @phba: pointer to lpfc hba data structure.
3516 * @acqe_link: pointer to the async link completion queue entry.
3518 * This routine is to parse the SLI4 link-attention link speed and translate
3519 * it into the base driver's link-attention link speed coding.
3521 * Return: Link-attention link speed in terms of base driver's coding.
3524 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3525 struct lpfc_acqe_link *acqe_link)
3529 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3530 case LPFC_ASYNC_LINK_SPEED_ZERO:
3531 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3532 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3533 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3535 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3536 link_speed = LPFC_LINK_SPEED_1GHZ;
3538 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3539 link_speed = LPFC_LINK_SPEED_10GHZ;
3542 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3543 "0483 Invalid link-attention link speed: x%x\n",
3544 bf_get(lpfc_acqe_link_speed, acqe_link));
3545 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3552 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3553 * @phba: pointer to lpfc hba data structure.
3555 * This routine is to get an SLI3 FC port's link speed in Mbps.
3557 * Return: link speed in terms of Mbps.
3560 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3562 uint32_t link_speed;
3564 if (!lpfc_is_link_up(phba))
3567 switch (phba->fc_linkspeed) {
3568 case LPFC_LINK_SPEED_1GHZ:
3571 case LPFC_LINK_SPEED_2GHZ:
3574 case LPFC_LINK_SPEED_4GHZ:
3577 case LPFC_LINK_SPEED_8GHZ:
3580 case LPFC_LINK_SPEED_10GHZ:
3583 case LPFC_LINK_SPEED_16GHZ:
3593 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3594 * @phba: pointer to lpfc hba data structure.
3595 * @evt_code: asynchronous event code.
3596 * @speed_code: asynchronous event link speed code.
3598 * This routine is to parse the giving SLI4 async event link speed code into
3599 * value of Mbps for the link speed.
3601 * Return: link speed in terms of Mbps.
3604 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3607 uint32_t port_speed;
3610 case LPFC_TRAILER_CODE_LINK:
3611 switch (speed_code) {
3612 case LPFC_EVT_CODE_LINK_NO_LINK:
3615 case LPFC_EVT_CODE_LINK_10_MBIT:
3618 case LPFC_EVT_CODE_LINK_100_MBIT:
3621 case LPFC_EVT_CODE_LINK_1_GBIT:
3624 case LPFC_EVT_CODE_LINK_10_GBIT:
3631 case LPFC_TRAILER_CODE_FC:
3632 switch (speed_code) {
3633 case LPFC_EVT_CODE_FC_NO_LINK:
3636 case LPFC_EVT_CODE_FC_1_GBAUD:
3639 case LPFC_EVT_CODE_FC_2_GBAUD:
3642 case LPFC_EVT_CODE_FC_4_GBAUD:
3645 case LPFC_EVT_CODE_FC_8_GBAUD:
3648 case LPFC_EVT_CODE_FC_10_GBAUD:
3651 case LPFC_EVT_CODE_FC_16_GBAUD:
3665 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3666 * @phba: pointer to lpfc hba data structure.
3667 * @acqe_link: pointer to the async link completion queue entry.
3669 * This routine is to handle the SLI4 asynchronous FCoE link event.
3672 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3673 struct lpfc_acqe_link *acqe_link)
3675 struct lpfc_dmabuf *mp;
3678 struct lpfc_mbx_read_top *la;
3682 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3683 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3685 phba->fcoe_eventtag = acqe_link->event_tag;
3686 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3688 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3689 "0395 The mboxq allocation failed\n");
3692 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3694 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3695 "0396 The lpfc_dmabuf allocation failed\n");
3698 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3700 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3701 "0397 The mbuf allocation failed\n");
3702 goto out_free_dmabuf;
3705 /* Cleanup any outstanding ELS commands */
3706 lpfc_els_flush_all_cmd(phba);
3708 /* Block ELS IOCBs until we have done process link event */
3709 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3711 /* Update link event statistics */
3712 phba->sli.slistat.link_event++;
3714 /* Create lpfc_handle_latt mailbox command from link ACQE */
3715 lpfc_read_topology(phba, pmb, mp);
3716 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3717 pmb->vport = phba->pport;
3719 /* Keep the link status for extra SLI4 state machine reference */
3720 phba->sli4_hba.link_state.speed =
3721 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3722 bf_get(lpfc_acqe_link_speed, acqe_link));
3723 phba->sli4_hba.link_state.duplex =
3724 bf_get(lpfc_acqe_link_duplex, acqe_link);
3725 phba->sli4_hba.link_state.status =
3726 bf_get(lpfc_acqe_link_status, acqe_link);
3727 phba->sli4_hba.link_state.type =
3728 bf_get(lpfc_acqe_link_type, acqe_link);
3729 phba->sli4_hba.link_state.number =
3730 bf_get(lpfc_acqe_link_number, acqe_link);
3731 phba->sli4_hba.link_state.fault =
3732 bf_get(lpfc_acqe_link_fault, acqe_link);
3733 phba->sli4_hba.link_state.logical_speed =
3734 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3736 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3737 "2900 Async FC/FCoE Link event - Speed:%dGBit "
3738 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3739 "Logical speed:%dMbps Fault:%d\n",
3740 phba->sli4_hba.link_state.speed,
3741 phba->sli4_hba.link_state.topology,
3742 phba->sli4_hba.link_state.status,
3743 phba->sli4_hba.link_state.type,
3744 phba->sli4_hba.link_state.number,
3745 phba->sli4_hba.link_state.logical_speed,
3746 phba->sli4_hba.link_state.fault);
3748 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3749 * topology info. Note: Optional for non FC-AL ports.
3751 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3752 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3753 if (rc == MBX_NOT_FINISHED)
3754 goto out_free_dmabuf;
3758 * For FCoE Mode: fill in all the topology information we need and call
3759 * the READ_TOPOLOGY completion routine to continue without actually
3760 * sending the READ_TOPOLOGY mailbox command to the port.
3762 /* Parse and translate status field */
3764 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3766 /* Parse and translate link attention fields */
3767 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3768 la->eventTag = acqe_link->event_tag;
3769 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3770 bf_set(lpfc_mbx_read_top_link_spd, la,
3771 lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3773 /* Fake the the following irrelvant fields */
3774 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3775 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3776 bf_set(lpfc_mbx_read_top_il, la, 0);
3777 bf_set(lpfc_mbx_read_top_pb, la, 0);
3778 bf_set(lpfc_mbx_read_top_fa, la, 0);
3779 bf_set(lpfc_mbx_read_top_mm, la, 0);
3781 /* Invoke the lpfc_handle_latt mailbox command callback function */
3782 lpfc_mbx_cmpl_read_topology(phba, pmb);
3789 mempool_free(pmb, phba->mbox_mem_pool);
3793 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3794 * @phba: pointer to lpfc hba data structure.
3795 * @acqe_fc: pointer to the async fc completion queue entry.
3797 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3798 * that the event was received and then issue a read_topology mailbox command so
3799 * that the rest of the driver will treat it the same as SLI3.
3802 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3804 struct lpfc_dmabuf *mp;
3808 if (bf_get(lpfc_trailer_type, acqe_fc) !=
3809 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3810 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3811 "2895 Non FC link Event detected.(%d)\n",
3812 bf_get(lpfc_trailer_type, acqe_fc));
3815 /* Keep the link status for extra SLI4 state machine reference */
3816 phba->sli4_hba.link_state.speed =
3817 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
3818 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
3819 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3820 phba->sli4_hba.link_state.topology =
3821 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3822 phba->sli4_hba.link_state.status =
3823 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3824 phba->sli4_hba.link_state.type =
3825 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3826 phba->sli4_hba.link_state.number =
3827 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3828 phba->sli4_hba.link_state.fault =
3829 bf_get(lpfc_acqe_link_fault, acqe_fc);
3830 phba->sli4_hba.link_state.logical_speed =
3831 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
3832 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3833 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3834 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3835 "%dMbps Fault:%d\n",
3836 phba->sli4_hba.link_state.speed,
3837 phba->sli4_hba.link_state.topology,
3838 phba->sli4_hba.link_state.status,
3839 phba->sli4_hba.link_state.type,
3840 phba->sli4_hba.link_state.number,
3841 phba->sli4_hba.link_state.logical_speed,
3842 phba->sli4_hba.link_state.fault);
3843 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3845 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3846 "2897 The mboxq allocation failed\n");
3849 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3851 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3852 "2898 The lpfc_dmabuf allocation failed\n");
3855 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3857 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3858 "2899 The mbuf allocation failed\n");
3859 goto out_free_dmabuf;
3862 /* Cleanup any outstanding ELS commands */
3863 lpfc_els_flush_all_cmd(phba);
3865 /* Block ELS IOCBs until we have done process link event */
3866 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3868 /* Update link event statistics */
3869 phba->sli.slistat.link_event++;
3871 /* Create lpfc_handle_latt mailbox command from link ACQE */
3872 lpfc_read_topology(phba, pmb, mp);
3873 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3874 pmb->vport = phba->pport;
3876 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3877 if (rc == MBX_NOT_FINISHED)
3878 goto out_free_dmabuf;
3884 mempool_free(pmb, phba->mbox_mem_pool);
3888 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3889 * @phba: pointer to lpfc hba data structure.
3890 * @acqe_fc: pointer to the async SLI completion queue entry.
3892 * This routine is to handle the SLI4 asynchronous SLI events.
3895 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3900 struct lpfc_acqe_misconfigured_event *misconfigured;
3902 /* special case misconfigured event as it contains data for all ports */
3903 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
3904 LPFC_SLI_INTF_IF_TYPE_2) ||
3905 (bf_get(lpfc_trailer_type, acqe_sli) !=
3906 LPFC_SLI_EVENT_TYPE_MISCONFIGURED)) {
3907 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3908 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3909 "x%08x SLI Event Type:%d\n",
3910 acqe_sli->event_data1, acqe_sli->event_data2,
3911 bf_get(lpfc_trailer_type, acqe_sli));
3915 port_name = phba->Port[0];
3916 if (port_name == 0x00)
3917 port_name = '?'; /* get port name is empty */
3919 misconfigured = (struct lpfc_acqe_misconfigured_event *)
3920 &acqe_sli->event_data1;
3922 /* fetch the status for this port */
3923 switch (phba->sli4_hba.lnk_info.lnk_no) {
3924 case LPFC_LINK_NUMBER_0:
3925 status = bf_get(lpfc_sli_misconfigured_port0,
3926 &misconfigured->theEvent);
3928 case LPFC_LINK_NUMBER_1:
3929 status = bf_get(lpfc_sli_misconfigured_port1,
3930 &misconfigured->theEvent);
3932 case LPFC_LINK_NUMBER_2:
3933 status = bf_get(lpfc_sli_misconfigured_port2,
3934 &misconfigured->theEvent);
3936 case LPFC_LINK_NUMBER_3:
3937 status = bf_get(lpfc_sli_misconfigured_port3,
3938 &misconfigured->theEvent);
3941 status = ~LPFC_SLI_EVENT_STATUS_VALID;
3946 case LPFC_SLI_EVENT_STATUS_VALID:
3947 return; /* no message if the sfp is okay */
3948 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
3949 sprintf(message, "Optics faulted/incorrectly installed/not " \
3950 "installed - Reseat optics, if issue not "
3951 "resolved, replace.");
3953 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
3955 "Optics of two types installed - Remove one optic or " \
3956 "install matching pair of optics.");
3958 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
3959 sprintf(message, "Incompatible optics - Replace with " \
3960 "compatible optics for card to function.");
3963 /* firmware is reporting a status we don't know about */
3964 sprintf(message, "Unknown event status x%02x", status);
3968 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3969 "3176 Misconfigured Physical Port - "
3970 "Port Name %c %s\n", port_name, message);
3974 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3975 * @vport: pointer to vport data structure.
3977 * This routine is to perform Clear Virtual Link (CVL) on a vport in
3978 * response to a CVL event.
3980 * Return the pointer to the ndlp with the vport if successful, otherwise
3983 static struct lpfc_nodelist *
3984 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3986 struct lpfc_nodelist *ndlp;
3987 struct Scsi_Host *shost;
3988 struct lpfc_hba *phba;
3995 ndlp = lpfc_findnode_did(vport, Fabric_DID);
3997 /* Cannot find existing Fabric ndlp, so allocate a new one */
3998 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4001 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4002 /* Set the node type */
4003 ndlp->nlp_type |= NLP_FABRIC;
4004 /* Put ndlp onto node list */
4005 lpfc_enqueue_node(vport, ndlp);
4006 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4007 /* re-setup ndlp without removing from node list */
4008 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4012 if ((phba->pport->port_state < LPFC_FLOGI) &&
4013 (phba->pport->port_state != LPFC_VPORT_FAILED))
4015 /* If virtual link is not yet instantiated ignore CVL */
4016 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4017 && (vport->port_state != LPFC_VPORT_FAILED))
4019 shost = lpfc_shost_from_vport(vport);
4022 lpfc_linkdown_port(vport);
4023 lpfc_cleanup_pending_mbox(vport);
4024 spin_lock_irq(shost->host_lock);
4025 vport->fc_flag |= FC_VPORT_CVL_RCVD;
4026 spin_unlock_irq(shost->host_lock);
4032 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4033 * @vport: pointer to lpfc hba data structure.
4035 * This routine is to perform Clear Virtual Link (CVL) on all vports in
4036 * response to a FCF dead event.
4039 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4041 struct lpfc_vport **vports;
4044 vports = lpfc_create_vport_work_array(phba);
4046 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4047 lpfc_sli4_perform_vport_cvl(vports[i]);
4048 lpfc_destroy_vport_work_array(phba, vports);
4052 * lpfc_sli4_perform_inuse_fcf_recovery - Perform inuse fcf recovery
4053 * @vport: pointer to lpfc hba data structure.
4055 * This routine is to perform FCF recovery when the in-use FCF either dead or
4059 lpfc_sli4_perform_inuse_fcf_recovery(struct lpfc_hba *phba,
4060 struct lpfc_acqe_fip *acqe_fip)
4064 spin_lock_irq(&phba->hbalock);
4065 /* Mark the fast failover process in progress */
4066 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4067 spin_unlock_irq(&phba->hbalock);
4069 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4070 "2771 Start FCF fast failover process due to in-use "
4071 "FCF DEAD/MODIFIED event: evt_tag:x%x, index:x%x\n",
4072 acqe_fip->event_tag, acqe_fip->index);
4073 rc = lpfc_sli4_redisc_fcf_table(phba);
4075 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4076 "2772 Issue FCF rediscover mabilbox command "
4077 "failed, fail through to FCF dead event\n");
4078 spin_lock_irq(&phba->hbalock);
4079 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4080 spin_unlock_irq(&phba->hbalock);
4082 * Last resort will fail over by treating this as a link
4083 * down to FCF registration.
4085 lpfc_sli4_fcf_dead_failthrough(phba);
4087 /* Reset FCF roundrobin bmask for new discovery */
4088 lpfc_sli4_clear_fcf_rr_bmask(phba);
4090 * Handling fast FCF failover to a DEAD FCF event is
4091 * considered equalivant to receiving CVL to all vports.
4093 lpfc_sli4_perform_all_vport_cvl(phba);
4098 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4099 * @phba: pointer to lpfc hba data structure.
4100 * @acqe_link: pointer to the async fcoe completion queue entry.
4102 * This routine is to handle the SLI4 asynchronous fcoe event.
4105 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4106 struct lpfc_acqe_fip *acqe_fip)
4108 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4110 struct lpfc_vport *vport;
4111 struct lpfc_nodelist *ndlp;
4112 struct Scsi_Host *shost;
4113 int active_vlink_present;
4114 struct lpfc_vport **vports;
4117 phba->fc_eventTag = acqe_fip->event_tag;
4118 phba->fcoe_eventtag = acqe_fip->event_tag;
4119 switch (event_type) {
4120 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4121 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4122 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4123 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4125 "2546 New FCF event, evt_tag:x%x, "
4127 acqe_fip->event_tag,
4130 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4132 "2788 FCF param modified event, "
4133 "evt_tag:x%x, index:x%x\n",
4134 acqe_fip->event_tag,
4136 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4138 * During period of FCF discovery, read the FCF
4139 * table record indexed by the event to update
4140 * FCF roundrobin failover eligible FCF bmask.
4142 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4144 "2779 Read FCF (x%x) for updating "
4145 "roundrobin FCF failover bmask\n",
4147 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4150 /* If the FCF discovery is in progress, do nothing. */
4151 spin_lock_irq(&phba->hbalock);
4152 if (phba->hba_flag & FCF_TS_INPROG) {
4153 spin_unlock_irq(&phba->hbalock);
4156 /* If fast FCF failover rescan event is pending, do nothing */
4157 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4158 spin_unlock_irq(&phba->hbalock);
4162 /* If FCF has been in discovered state, perform rediscovery
4163 * only if the FCF with the same index of the in-use FCF got
4164 * modified during normal operation. Otherwise, do nothing.
4166 if (phba->pport->port_state > LPFC_FLOGI) {
4167 spin_unlock_irq(&phba->hbalock);
4168 if (phba->fcf.current_rec.fcf_indx ==
4170 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
4171 "3300 In-use FCF (%d) "
4172 "modified, perform FCF "
4175 lpfc_sli4_perform_inuse_fcf_recovery(phba,
4180 spin_unlock_irq(&phba->hbalock);
4182 /* Otherwise, scan the entire FCF table and re-discover SAN */
4183 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4184 "2770 Start FCF table scan per async FCF "
4185 "event, evt_tag:x%x, index:x%x\n",
4186 acqe_fip->event_tag, acqe_fip->index);
4187 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4188 LPFC_FCOE_FCF_GET_FIRST);
4190 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4191 "2547 Issue FCF scan read FCF mailbox "
4192 "command failed (x%x)\n", rc);
4195 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4196 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4197 "2548 FCF Table full count 0x%x tag 0x%x\n",
4198 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4199 acqe_fip->event_tag);
4202 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4203 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4204 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4205 "2549 FCF (x%x) disconnected from network, "
4206 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4208 * If we are in the middle of FCF failover process, clear
4209 * the corresponding FCF bit in the roundrobin bitmap.
4211 spin_lock_irq(&phba->hbalock);
4212 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4213 spin_unlock_irq(&phba->hbalock);
4214 /* Update FLOGI FCF failover eligible FCF bmask */
4215 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4218 spin_unlock_irq(&phba->hbalock);
4220 /* If the event is not for currently used fcf do nothing */
4221 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4225 * Otherwise, request the port to rediscover the entire FCF
4226 * table for a fast recovery from case that the current FCF
4227 * is no longer valid as we are not in the middle of FCF
4228 * failover process already.
4230 lpfc_sli4_perform_inuse_fcf_recovery(phba, acqe_fip);
4232 case LPFC_FIP_EVENT_TYPE_CVL:
4233 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4234 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4235 "2718 Clear Virtual Link Received for VPI 0x%x"
4236 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4238 vport = lpfc_find_vport_by_vpid(phba,
4240 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4243 active_vlink_present = 0;
4245 vports = lpfc_create_vport_work_array(phba);
4247 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4249 if ((!(vports[i]->fc_flag &
4250 FC_VPORT_CVL_RCVD)) &&
4251 (vports[i]->port_state > LPFC_FDISC)) {
4252 active_vlink_present = 1;
4256 lpfc_destroy_vport_work_array(phba, vports);
4259 if (active_vlink_present) {
4261 * If there are other active VLinks present,
4262 * re-instantiate the Vlink using FDISC.
4264 mod_timer(&ndlp->nlp_delayfunc,
4265 jiffies + msecs_to_jiffies(1000));
4266 shost = lpfc_shost_from_vport(vport);
4267 spin_lock_irq(shost->host_lock);
4268 ndlp->nlp_flag |= NLP_DELAY_TMO;
4269 spin_unlock_irq(shost->host_lock);
4270 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4271 vport->port_state = LPFC_FDISC;
4274 * Otherwise, we request port to rediscover
4275 * the entire FCF table for a fast recovery
4276 * from possible case that the current FCF
4277 * is no longer valid if we are not already
4278 * in the FCF failover process.
4280 spin_lock_irq(&phba->hbalock);
4281 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4282 spin_unlock_irq(&phba->hbalock);
4285 /* Mark the fast failover process in progress */
4286 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4287 spin_unlock_irq(&phba->hbalock);
4288 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4290 "2773 Start FCF failover per CVL, "
4291 "evt_tag:x%x\n", acqe_fip->event_tag);
4292 rc = lpfc_sli4_redisc_fcf_table(phba);
4294 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4296 "2774 Issue FCF rediscover "
4297 "mabilbox command failed, "
4298 "through to CVL event\n");
4299 spin_lock_irq(&phba->hbalock);
4300 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4301 spin_unlock_irq(&phba->hbalock);
4303 * Last resort will be re-try on the
4304 * the current registered FCF entry.
4306 lpfc_retry_pport_discovery(phba);
4309 * Reset FCF roundrobin bmask for new
4312 lpfc_sli4_clear_fcf_rr_bmask(phba);
4316 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4317 "0288 Unknown FCoE event type 0x%x event tag "
4318 "0x%x\n", event_type, acqe_fip->event_tag);
4324 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4325 * @phba: pointer to lpfc hba data structure.
4326 * @acqe_link: pointer to the async dcbx completion queue entry.
4328 * This routine is to handle the SLI4 asynchronous dcbx event.
4331 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4332 struct lpfc_acqe_dcbx *acqe_dcbx)
4334 phba->fc_eventTag = acqe_dcbx->event_tag;
4335 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4336 "0290 The SLI4 DCBX asynchronous event is not "
4341 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4342 * @phba: pointer to lpfc hba data structure.
4343 * @acqe_link: pointer to the async grp5 completion queue entry.
4345 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4346 * is an asynchronous notified of a logical link speed change. The Port
4347 * reports the logical link speed in units of 10Mbps.
4350 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4351 struct lpfc_acqe_grp5 *acqe_grp5)
4353 uint16_t prev_ll_spd;
4355 phba->fc_eventTag = acqe_grp5->event_tag;
4356 phba->fcoe_eventtag = acqe_grp5->event_tag;
4357 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4358 phba->sli4_hba.link_state.logical_speed =
4359 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4360 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4361 "2789 GRP5 Async Event: Updating logical link speed "
4362 "from %dMbps to %dMbps\n", prev_ll_spd,
4363 phba->sli4_hba.link_state.logical_speed);
4367 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4368 * @phba: pointer to lpfc hba data structure.
4370 * This routine is invoked by the worker thread to process all the pending
4371 * SLI4 asynchronous events.
4373 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4375 struct lpfc_cq_event *cq_event;
4377 /* First, declare the async event has been handled */
4378 spin_lock_irq(&phba->hbalock);
4379 phba->hba_flag &= ~ASYNC_EVENT;
4380 spin_unlock_irq(&phba->hbalock);
4381 /* Now, handle all the async events */
4382 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4383 /* Get the first event from the head of the event queue */
4384 spin_lock_irq(&phba->hbalock);
4385 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4386 cq_event, struct lpfc_cq_event, list);
4387 spin_unlock_irq(&phba->hbalock);
4388 /* Process the asynchronous event */
4389 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4390 case LPFC_TRAILER_CODE_LINK:
4391 lpfc_sli4_async_link_evt(phba,
4392 &cq_event->cqe.acqe_link);
4394 case LPFC_TRAILER_CODE_FCOE:
4395 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4397 case LPFC_TRAILER_CODE_DCBX:
4398 lpfc_sli4_async_dcbx_evt(phba,
4399 &cq_event->cqe.acqe_dcbx);
4401 case LPFC_TRAILER_CODE_GRP5:
4402 lpfc_sli4_async_grp5_evt(phba,
4403 &cq_event->cqe.acqe_grp5);
4405 case LPFC_TRAILER_CODE_FC:
4406 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4408 case LPFC_TRAILER_CODE_SLI:
4409 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4412 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4413 "1804 Invalid asynchrous event code: "
4414 "x%x\n", bf_get(lpfc_trailer_code,
4415 &cq_event->cqe.mcqe_cmpl));
4418 /* Free the completion event processed to the free pool */
4419 lpfc_sli4_cq_event_release(phba, cq_event);
4424 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4425 * @phba: pointer to lpfc hba data structure.
4427 * This routine is invoked by the worker thread to process FCF table
4428 * rediscovery pending completion event.
4430 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4434 spin_lock_irq(&phba->hbalock);
4435 /* Clear FCF rediscovery timeout event */
4436 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4437 /* Clear driver fast failover FCF record flag */
4438 phba->fcf.failover_rec.flag = 0;
4439 /* Set state for FCF fast failover */
4440 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4441 spin_unlock_irq(&phba->hbalock);
4443 /* Scan FCF table from the first entry to re-discover SAN */
4444 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4445 "2777 Start post-quiescent FCF table scan\n");
4446 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4448 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4449 "2747 Issue FCF scan read FCF mailbox "
4450 "command failed 0x%x\n", rc);
4454 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4455 * @phba: pointer to lpfc hba data structure.
4456 * @dev_grp: The HBA PCI-Device group number.
4458 * This routine is invoked to set up the per HBA PCI-Device group function
4459 * API jump table entries.
4461 * Return: 0 if success, otherwise -ENODEV
4464 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4468 /* Set up lpfc PCI-device group */
4469 phba->pci_dev_grp = dev_grp;
4471 /* The LPFC_PCI_DEV_OC uses SLI4 */
4472 if (dev_grp == LPFC_PCI_DEV_OC)
4473 phba->sli_rev = LPFC_SLI_REV4;
4475 /* Set up device INIT API function jump table */
4476 rc = lpfc_init_api_table_setup(phba, dev_grp);
4479 /* Set up SCSI API function jump table */
4480 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4483 /* Set up SLI API function jump table */
4484 rc = lpfc_sli_api_table_setup(phba, dev_grp);
4487 /* Set up MBOX API function jump table */
4488 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4496 * lpfc_log_intr_mode - Log the active interrupt mode
4497 * @phba: pointer to lpfc hba data structure.
4498 * @intr_mode: active interrupt mode adopted.
4500 * This routine it invoked to log the currently used active interrupt mode
4503 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4505 switch (intr_mode) {
4507 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4508 "0470 Enable INTx interrupt mode.\n");
4511 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4512 "0481 Enabled MSI interrupt mode.\n");
4515 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4516 "0480 Enabled MSI-X interrupt mode.\n");
4519 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4520 "0482 Illegal interrupt mode.\n");
4527 * lpfc_enable_pci_dev - Enable a generic PCI device.
4528 * @phba: pointer to lpfc hba data structure.
4530 * This routine is invoked to enable the PCI device that is common to all
4535 * other values - error
4538 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4540 struct pci_dev *pdev;
4543 /* Obtain PCI device reference */
4547 pdev = phba->pcidev;
4548 /* Select PCI BARs */
4549 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4550 /* Enable PCI device */
4551 if (pci_enable_device_mem(pdev))
4553 /* Request PCI resource for the device */
4554 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4555 goto out_disable_device;
4556 /* Set up device as PCI master and save state for EEH */
4557 pci_set_master(pdev);
4558 pci_try_set_mwi(pdev);
4559 pci_save_state(pdev);
4561 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4562 if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
4563 pdev->needs_freset = 1;
4568 pci_disable_device(pdev);
4570 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4571 "1401 Failed to enable pci device, bars:x%x\n", bars);
4576 * lpfc_disable_pci_dev - Disable a generic PCI device.
4577 * @phba: pointer to lpfc hba data structure.
4579 * This routine is invoked to disable the PCI device that is common to all
4583 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4585 struct pci_dev *pdev;
4588 /* Obtain PCI device reference */
4592 pdev = phba->pcidev;
4593 /* Select PCI BARs */
4594 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4595 /* Release PCI resource and disable PCI device */
4596 pci_release_selected_regions(pdev, bars);
4597 pci_disable_device(pdev);
4598 /* Null out PCI private reference to driver */
4599 pci_set_drvdata(pdev, NULL);
4605 * lpfc_reset_hba - Reset a hba
4606 * @phba: pointer to lpfc hba data structure.
4608 * This routine is invoked to reset a hba device. It brings the HBA
4609 * offline, performs a board restart, and then brings the board back
4610 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4611 * on outstanding mailbox commands.
4614 lpfc_reset_hba(struct lpfc_hba *phba)
4616 /* If resets are disabled then set error state and return. */
4617 if (!phba->cfg_enable_hba_reset) {
4618 phba->link_state = LPFC_HBA_ERROR;
4621 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4623 lpfc_sli_brdrestart(phba);
4625 lpfc_unblock_mgmt_io(phba);
4629 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4630 * @phba: pointer to lpfc hba data structure.
4632 * This function enables the PCI SR-IOV virtual functions to a physical
4633 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4634 * enable the number of virtual functions to the physical function. As
4635 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4636 * API call does not considered as an error condition for most of the device.
4639 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4641 struct pci_dev *pdev = phba->pcidev;
4645 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4649 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4654 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4655 * @phba: pointer to lpfc hba data structure.
4656 * @nr_vfn: number of virtual functions to be enabled.
4658 * This function enables the PCI SR-IOV virtual functions to a physical
4659 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4660 * enable the number of virtual functions to the physical function. As
4661 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4662 * API call does not considered as an error condition for most of the device.
4665 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4667 struct pci_dev *pdev = phba->pcidev;
4668 uint16_t max_nr_vfn;
4671 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4672 if (nr_vfn > max_nr_vfn) {
4673 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4674 "3057 Requested vfs (%d) greater than "
4675 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4679 rc = pci_enable_sriov(pdev, nr_vfn);
4681 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4682 "2806 Failed to enable sriov on this device "
4683 "with vfn number nr_vf:%d, rc:%d\n",
4686 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4687 "2807 Successful enable sriov on this device "
4688 "with vfn number nr_vf:%d\n", nr_vfn);
4693 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4694 * @phba: pointer to lpfc hba data structure.
4696 * This routine is invoked to set up the driver internal resources specific to
4697 * support the SLI-3 HBA device it attached to.
4701 * other values - error
4704 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4706 struct lpfc_sli *psli;
4710 * Initialize timers used by driver
4713 /* Heartbeat timer */
4714 init_timer(&phba->hb_tmofunc);
4715 phba->hb_tmofunc.function = lpfc_hb_timeout;
4716 phba->hb_tmofunc.data = (unsigned long)phba;
4719 /* MBOX heartbeat timer */
4720 init_timer(&psli->mbox_tmo);
4721 psli->mbox_tmo.function = lpfc_mbox_timeout;
4722 psli->mbox_tmo.data = (unsigned long) phba;
4723 /* FCP polling mode timer */
4724 init_timer(&phba->fcp_poll_timer);
4725 phba->fcp_poll_timer.function = lpfc_poll_timeout;
4726 phba->fcp_poll_timer.data = (unsigned long) phba;
4727 /* Fabric block timer */
4728 init_timer(&phba->fabric_block_timer);
4729 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4730 phba->fabric_block_timer.data = (unsigned long) phba;
4731 /* EA polling mode timer */
4732 init_timer(&phba->eratt_poll);
4733 phba->eratt_poll.function = lpfc_poll_eratt;
4734 phba->eratt_poll.data = (unsigned long) phba;
4736 /* Host attention work mask setup */
4737 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4738 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4740 /* Get all the module params for configuring this host */
4741 lpfc_get_cfgparam(phba);
4742 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4743 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4744 /* check for menlo minimum sg count */
4745 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4746 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4749 if (!phba->sli.ring)
4750 phba->sli.ring = (struct lpfc_sli_ring *)
4751 kzalloc(LPFC_SLI3_MAX_RING *
4752 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4753 if (!phba->sli.ring)
4757 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
4758 * used to create the sg_dma_buf_pool must be dynamically calculated.
4761 /* Initialize the host templates the configured values. */
4762 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4763 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4765 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
4766 if (phba->cfg_enable_bg) {
4768 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
4769 * the FCP rsp, and a BDE for each. Sice we have no control
4770 * over how many protection data segments the SCSI Layer
4771 * will hand us (ie: there could be one for every block
4772 * in the IO), we just allocate enough BDEs to accomidate
4773 * our max amount and we need to limit lpfc_sg_seg_cnt to
4774 * minimize the risk of running out.
4776 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4777 sizeof(struct fcp_rsp) +
4778 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
4780 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
4781 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
4783 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
4784 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4787 * The scsi_buf for a regular I/O will hold the FCP cmnd,
4788 * the FCP rsp, a BDE for each, and a BDE for up to
4789 * cfg_sg_seg_cnt data segments.
4791 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4792 sizeof(struct fcp_rsp) +
4793 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4795 /* Total BDEs in BPL for scsi_sg_list */
4796 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
4799 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4800 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
4801 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
4802 phba->cfg_total_seg_cnt);
4804 phba->max_vpi = LPFC_MAX_VPI;
4805 /* This will be set to correct value after config_port mbox */
4806 phba->max_vports = 0;
4809 * Initialize the SLI Layer to run with lpfc HBAs.
4811 lpfc_sli_setup(phba);
4812 lpfc_sli_queue_setup(phba);
4814 /* Allocate device driver memory */
4815 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4819 * Enable sr-iov virtual functions if supported and configured
4820 * through the module parameter.
4822 if (phba->cfg_sriov_nr_virtfn > 0) {
4823 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4824 phba->cfg_sriov_nr_virtfn);
4826 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4827 "2808 Requested number of SR-IOV "
4828 "virtual functions (%d) is not "
4830 phba->cfg_sriov_nr_virtfn);
4831 phba->cfg_sriov_nr_virtfn = 0;
4839 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4840 * @phba: pointer to lpfc hba data structure.
4842 * This routine is invoked to unset the driver internal resources set up
4843 * specific for supporting the SLI-3 HBA device it attached to.
4846 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4848 /* Free device driver memory allocated */
4849 lpfc_mem_free_all(phba);
4855 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4856 * @phba: pointer to lpfc hba data structure.
4858 * This routine is invoked to set up the driver internal resources specific to
4859 * support the SLI-4 HBA device it attached to.
4863 * other values - error
4866 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4868 struct lpfc_vector_map_info *cpup;
4869 struct lpfc_sli *psli;
4870 LPFC_MBOXQ_t *mboxq;
4871 int rc, i, hbq_count, max_buf_size;
4872 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4873 struct lpfc_mqe *mqe;
4876 /* Before proceed, wait for POST done and device ready */
4877 rc = lpfc_sli4_post_status_check(phba);
4882 * Initialize timers used by driver
4885 /* Heartbeat timer */
4886 init_timer(&phba->hb_tmofunc);
4887 phba->hb_tmofunc.function = lpfc_hb_timeout;
4888 phba->hb_tmofunc.data = (unsigned long)phba;
4889 init_timer(&phba->rrq_tmr);
4890 phba->rrq_tmr.function = lpfc_rrq_timeout;
4891 phba->rrq_tmr.data = (unsigned long)phba;
4894 /* MBOX heartbeat timer */
4895 init_timer(&psli->mbox_tmo);
4896 psli->mbox_tmo.function = lpfc_mbox_timeout;
4897 psli->mbox_tmo.data = (unsigned long) phba;
4898 /* Fabric block timer */
4899 init_timer(&phba->fabric_block_timer);
4900 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4901 phba->fabric_block_timer.data = (unsigned long) phba;
4902 /* EA polling mode timer */
4903 init_timer(&phba->eratt_poll);
4904 phba->eratt_poll.function = lpfc_poll_eratt;
4905 phba->eratt_poll.data = (unsigned long) phba;
4906 /* FCF rediscover timer */
4907 init_timer(&phba->fcf.redisc_wait);
4908 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4909 phba->fcf.redisc_wait.data = (unsigned long)phba;
4912 * Control structure for handling external multi-buffer mailbox
4913 * command pass-through.
4915 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
4916 sizeof(struct lpfc_mbox_ext_buf_ctx));
4917 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4920 * We need to do a READ_CONFIG mailbox command here before
4921 * calling lpfc_get_cfgparam. For VFs this will report the
4922 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4923 * All of the resources allocated
4924 * for this Port are tied to these values.
4926 /* Get all the module params for configuring this host */
4927 lpfc_get_cfgparam(phba);
4928 phba->max_vpi = LPFC_MAX_VPI;
4930 /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */
4931 phba->cfg_fcp_io_channel = phba->cfg_fcp_eq_count;
4933 /* This will be set to correct value after the read_config mbox */
4934 phba->max_vports = 0;
4936 /* Program the default value of vlan_id and fc_map */
4937 phba->valid_vlan = 0;
4938 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4939 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4940 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4943 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
4944 * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
4946 if (!phba->sli.ring)
4947 phba->sli.ring = kzalloc(
4948 (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
4949 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4950 if (!phba->sli.ring)
4954 * It doesn't matter what family our adapter is in, we are
4955 * limited to 2 Pages, 512 SGEs, for our SGL.
4956 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
4958 max_buf_size = (2 * SLI4_PAGE_SIZE);
4959 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
4960 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
4963 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
4964 * used to create the sg_dma_buf_pool must be dynamically calculated.
4967 if (phba->cfg_enable_bg) {
4969 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
4970 * the FCP rsp, and a SGE for each. Sice we have no control
4971 * over how many protection data segments the SCSI Layer
4972 * will hand us (ie: there could be one for every block
4973 * in the IO), we just allocate enough SGEs to accomidate
4974 * our max amount and we need to limit lpfc_sg_seg_cnt to
4975 * minimize the risk of running out.
4977 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4978 sizeof(struct fcp_rsp) + max_buf_size;
4980 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
4981 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
4983 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
4984 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
4987 * The scsi_buf for a regular I/O will hold the FCP cmnd,
4988 * the FCP rsp, a SGE for each, and a SGE for up to
4989 * cfg_sg_seg_cnt data segments.
4991 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4992 sizeof(struct fcp_rsp) +
4993 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
4995 /* Total SGEs for scsi_sg_list */
4996 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
4998 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
4999 * to post 1 page for the SGL.
5003 /* Initialize the host templates with the updated values. */
5004 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5005 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5007 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ)
5008 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5010 phba->cfg_sg_dma_buf_size =
5011 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5013 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5014 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5015 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5016 phba->cfg_total_seg_cnt);
5018 /* Initialize buffer queue management fields */
5019 hbq_count = lpfc_sli_hbq_count();
5020 for (i = 0; i < hbq_count; ++i)
5021 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5022 INIT_LIST_HEAD(&phba->rb_pend_list);
5023 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5024 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5027 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5029 /* Initialize the Abort scsi buffer list used by driver */
5030 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5031 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5032 /* This abort list used by worker thread */
5033 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
5036 * Initialize driver internal slow-path work queues
5039 /* Driver internel slow-path CQ Event pool */
5040 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5041 /* Response IOCB work queue list */
5042 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5043 /* Asynchronous event CQ Event work queue list */
5044 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5045 /* Fast-path XRI aborted CQ Event work queue list */
5046 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5047 /* Slow-path XRI aborted CQ Event work queue list */
5048 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5049 /* Receive queue CQ Event work queue list */
5050 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5052 /* Initialize extent block lists. */
5053 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5054 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5055 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5056 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5058 /* Initialize the driver internal SLI layer lists. */
5059 lpfc_sli_setup(phba);
5060 lpfc_sli_queue_setup(phba);
5062 /* Allocate device driver memory */
5063 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5067 /* IF Type 2 ports get initialized now. */
5068 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5069 LPFC_SLI_INTF_IF_TYPE_2) {
5070 rc = lpfc_pci_function_reset(phba);
5075 /* Create the bootstrap mailbox command */
5076 rc = lpfc_create_bootstrap_mbox(phba);
5080 /* Set up the host's endian order with the device. */
5081 rc = lpfc_setup_endian_order(phba);
5083 goto out_free_bsmbx;
5085 /* Set up the hba's configuration parameters. */
5086 rc = lpfc_sli4_read_config(phba);
5088 goto out_free_bsmbx;
5090 /* IF Type 0 ports get initialized now. */
5091 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5092 LPFC_SLI_INTF_IF_TYPE_0) {
5093 rc = lpfc_pci_function_reset(phba);
5095 goto out_free_bsmbx;
5098 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5102 goto out_free_bsmbx;
5105 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5106 lpfc_supported_pages(mboxq);
5107 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5109 mqe = &mboxq->u.mqe;
5110 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5111 LPFC_MAX_SUPPORTED_PAGES);
5112 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5113 switch (pn_page[i]) {
5114 case LPFC_SLI4_PARAMETERS:
5115 phba->sli4_hba.pc_sli4_params.supported = 1;
5121 /* Read the port's SLI4 Parameters capabilities if supported. */
5122 if (phba->sli4_hba.pc_sli4_params.supported)
5123 rc = lpfc_pc_sli4_params_get(phba, mboxq);
5125 mempool_free(mboxq, phba->mbox_mem_pool);
5127 goto out_free_bsmbx;
5131 * Get sli4 parameters that override parameters from Port capabilities.
5132 * If this call fails, it isn't critical unless the SLI4 parameters come
5135 rc = lpfc_get_sli4_parameters(phba, mboxq);
5137 if (phba->sli4_hba.extents_in_use &&
5138 phba->sli4_hba.rpi_hdrs_in_use) {
5139 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5140 "2999 Unsupported SLI4 Parameters "
5141 "Extents and RPI headers enabled.\n");
5142 goto out_free_bsmbx;
5145 mempool_free(mboxq, phba->mbox_mem_pool);
5146 /* Verify all the SLI4 queues */
5147 rc = lpfc_sli4_queue_verify(phba);
5149 goto out_free_bsmbx;
5151 /* Create driver internal CQE event pool */
5152 rc = lpfc_sli4_cq_event_pool_create(phba);
5154 goto out_free_bsmbx;
5156 /* Initialize sgl lists per host */
5157 lpfc_init_sgl_list(phba);
5159 /* Allocate and initialize active sgl array */
5160 rc = lpfc_init_active_sgl_array(phba);
5162 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5163 "1430 Failed to initialize sgl list.\n");
5164 goto out_destroy_cq_event_pool;
5166 rc = lpfc_sli4_init_rpi_hdrs(phba);
5168 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5169 "1432 Failed to initialize rpi headers.\n");
5170 goto out_free_active_sgl;
5173 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5174 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5175 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5177 if (!phba->fcf.fcf_rr_bmask) {
5178 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5179 "2759 Failed allocate memory for FCF round "
5180 "robin failover bmask\n");
5182 goto out_remove_rpi_hdrs;
5185 phba->sli4_hba.fcp_eq_hdl =
5186 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5187 phba->cfg_fcp_io_channel), GFP_KERNEL);
5188 if (!phba->sli4_hba.fcp_eq_hdl) {
5189 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5190 "2572 Failed allocate memory for "
5191 "fast-path per-EQ handle array\n");
5193 goto out_free_fcf_rr_bmask;
5196 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5197 phba->cfg_fcp_io_channel), GFP_KERNEL);
5198 if (!phba->sli4_hba.msix_entries) {
5199 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5200 "2573 Failed allocate memory for msi-x "
5201 "interrupt vector entries\n");
5203 goto out_free_fcp_eq_hdl;
5206 phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5207 phba->sli4_hba.num_present_cpu),
5209 if (!phba->sli4_hba.cpu_map) {
5210 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5211 "3327 Failed allocate memory for msi-x "
5212 "interrupt vector mapping\n");
5216 /* Initialize io channels for round robin */
5217 cpup = phba->sli4_hba.cpu_map;
5219 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5220 cpup->channel_id = rc;
5222 if (rc >= phba->cfg_fcp_io_channel)
5227 * Enable sr-iov virtual functions if supported and configured
5228 * through the module parameter.
5230 if (phba->cfg_sriov_nr_virtfn > 0) {
5231 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5232 phba->cfg_sriov_nr_virtfn);
5234 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5235 "3020 Requested number of SR-IOV "
5236 "virtual functions (%d) is not "
5238 phba->cfg_sriov_nr_virtfn);
5239 phba->cfg_sriov_nr_virtfn = 0;
5246 kfree(phba->sli4_hba.msix_entries);
5247 out_free_fcp_eq_hdl:
5248 kfree(phba->sli4_hba.fcp_eq_hdl);
5249 out_free_fcf_rr_bmask:
5250 kfree(phba->fcf.fcf_rr_bmask);
5251 out_remove_rpi_hdrs:
5252 lpfc_sli4_remove_rpi_hdrs(phba);
5253 out_free_active_sgl:
5254 lpfc_free_active_sgl(phba);
5255 out_destroy_cq_event_pool:
5256 lpfc_sli4_cq_event_pool_destroy(phba);
5258 lpfc_destroy_bootstrap_mbox(phba);
5260 lpfc_mem_free(phba);
5265 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5266 * @phba: pointer to lpfc hba data structure.
5268 * This routine is invoked to unset the driver internal resources set up
5269 * specific for supporting the SLI-4 HBA device it attached to.
5272 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5274 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5276 /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5277 kfree(phba->sli4_hba.cpu_map);
5278 phba->sli4_hba.num_present_cpu = 0;
5279 phba->sli4_hba.num_online_cpu = 0;
5281 /* Free memory allocated for msi-x interrupt vector entries */
5282 kfree(phba->sli4_hba.msix_entries);
5284 /* Free memory allocated for fast-path work queue handles */
5285 kfree(phba->sli4_hba.fcp_eq_hdl);
5287 /* Free the allocated rpi headers. */
5288 lpfc_sli4_remove_rpi_hdrs(phba);
5289 lpfc_sli4_remove_rpis(phba);
5291 /* Free eligible FCF index bmask */
5292 kfree(phba->fcf.fcf_rr_bmask);
5294 /* Free the ELS sgl list */
5295 lpfc_free_active_sgl(phba);
5296 lpfc_free_els_sgl_list(phba);
5298 /* Free the completion queue EQ event pool */
5299 lpfc_sli4_cq_event_release_all(phba);
5300 lpfc_sli4_cq_event_pool_destroy(phba);
5302 /* Release resource identifiers. */
5303 lpfc_sli4_dealloc_resource_identifiers(phba);
5305 /* Free the bsmbx region. */
5306 lpfc_destroy_bootstrap_mbox(phba);
5308 /* Free the SLI Layer memory with SLI4 HBAs */
5309 lpfc_mem_free_all(phba);
5311 /* Free the current connect table */
5312 list_for_each_entry_safe(conn_entry, next_conn_entry,
5313 &phba->fcf_conn_rec_list, list) {
5314 list_del_init(&conn_entry->list);
5322 * lpfc_init_api_table_setup - Set up init api function jump table
5323 * @phba: The hba struct for which this call is being executed.
5324 * @dev_grp: The HBA PCI-Device group number.
5326 * This routine sets up the device INIT interface API function jump table
5329 * Returns: 0 - success, -ENODEV - failure.
5332 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5334 phba->lpfc_hba_init_link = lpfc_hba_init_link;
5335 phba->lpfc_hba_down_link = lpfc_hba_down_link;
5336 phba->lpfc_selective_reset = lpfc_selective_reset;
5338 case LPFC_PCI_DEV_LP:
5339 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5340 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5341 phba->lpfc_stop_port = lpfc_stop_port_s3;
5343 case LPFC_PCI_DEV_OC:
5344 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5345 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5346 phba->lpfc_stop_port = lpfc_stop_port_s4;
5349 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5350 "1431 Invalid HBA PCI-device group: 0x%x\n",
5359 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5360 * @phba: pointer to lpfc hba data structure.
5362 * This routine is invoked to set up the driver internal resources before the
5363 * device specific resource setup to support the HBA device it attached to.
5367 * other values - error
5370 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5373 * Driver resources common to all SLI revisions
5375 atomic_set(&phba->fast_event_count, 0);
5376 spin_lock_init(&phba->hbalock);
5378 /* Initialize ndlp management spinlock */
5379 spin_lock_init(&phba->ndlp_lock);
5381 INIT_LIST_HEAD(&phba->port_list);
5382 INIT_LIST_HEAD(&phba->work_list);
5383 init_waitqueue_head(&phba->wait_4_mlo_m_q);
5385 /* Initialize the wait queue head for the kernel thread */
5386 init_waitqueue_head(&phba->work_waitq);
5388 /* Initialize the scsi buffer list used by driver for scsi IO */
5389 spin_lock_init(&phba->scsi_buf_list_get_lock);
5390 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5391 spin_lock_init(&phba->scsi_buf_list_put_lock);
5392 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5394 /* Initialize the fabric iocb list */
5395 INIT_LIST_HEAD(&phba->fabric_iocb_list);
5397 /* Initialize list to save ELS buffers */
5398 INIT_LIST_HEAD(&phba->elsbuf);
5400 /* Initialize FCF connection rec list */
5401 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5407 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5408 * @phba: pointer to lpfc hba data structure.
5410 * This routine is invoked to set up the driver internal resources after the
5411 * device specific resource setup to support the HBA device it attached to.
5415 * other values - error
5418 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5422 /* Startup the kernel thread for this host adapter. */
5423 phba->worker_thread = kthread_run(lpfc_do_work, phba,
5424 "lpfc_worker_%d", phba->brd_no);
5425 if (IS_ERR(phba->worker_thread)) {
5426 error = PTR_ERR(phba->worker_thread);
5434 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5435 * @phba: pointer to lpfc hba data structure.
5437 * This routine is invoked to unset the driver internal resources set up after
5438 * the device specific resource setup for supporting the HBA device it
5442 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5444 /* Stop kernel worker thread */
5445 kthread_stop(phba->worker_thread);
5449 * lpfc_free_iocb_list - Free iocb list.
5450 * @phba: pointer to lpfc hba data structure.
5452 * This routine is invoked to free the driver's IOCB list and memory.
5455 lpfc_free_iocb_list(struct lpfc_hba *phba)
5457 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5459 spin_lock_irq(&phba->hbalock);
5460 list_for_each_entry_safe(iocbq_entry, iocbq_next,
5461 &phba->lpfc_iocb_list, list) {
5462 list_del(&iocbq_entry->list);
5464 phba->total_iocbq_bufs--;
5466 spin_unlock_irq(&phba->hbalock);
5472 * lpfc_init_iocb_list - Allocate and initialize iocb list.
5473 * @phba: pointer to lpfc hba data structure.
5475 * This routine is invoked to allocate and initizlize the driver's IOCB
5476 * list and set up the IOCB tag array accordingly.
5480 * other values - error
5483 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5485 struct lpfc_iocbq *iocbq_entry = NULL;
5489 /* Initialize and populate the iocb list per host. */
5490 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5491 for (i = 0; i < iocb_count; i++) {
5492 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5493 if (iocbq_entry == NULL) {
5494 printk(KERN_ERR "%s: only allocated %d iocbs of "
5495 "expected %d count. Unloading driver.\n",
5496 __func__, i, LPFC_IOCB_LIST_CNT);
5497 goto out_free_iocbq;
5500 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5503 printk(KERN_ERR "%s: failed to allocate IOTAG. "
5504 "Unloading driver.\n", __func__);
5505 goto out_free_iocbq;
5507 iocbq_entry->sli4_lxritag = NO_XRI;
5508 iocbq_entry->sli4_xritag = NO_XRI;
5510 spin_lock_irq(&phba->hbalock);
5511 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5512 phba->total_iocbq_bufs++;
5513 spin_unlock_irq(&phba->hbalock);
5519 lpfc_free_iocb_list(phba);
5525 * lpfc_free_sgl_list - Free a given sgl list.
5526 * @phba: pointer to lpfc hba data structure.
5527 * @sglq_list: pointer to the head of sgl list.
5529 * This routine is invoked to free a give sgl list and memory.
5532 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5534 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5536 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5537 list_del(&sglq_entry->list);
5538 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5544 * lpfc_free_els_sgl_list - Free els sgl list.
5545 * @phba: pointer to lpfc hba data structure.
5547 * This routine is invoked to free the driver's els sgl list and memory.
5550 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5552 LIST_HEAD(sglq_list);
5554 /* Retrieve all els sgls from driver list */
5555 spin_lock_irq(&phba->hbalock);
5556 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5557 spin_unlock_irq(&phba->hbalock);
5559 /* Now free the sgl list */
5560 lpfc_free_sgl_list(phba, &sglq_list);
5564 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5565 * @phba: pointer to lpfc hba data structure.
5567 * This routine is invoked to allocate the driver's active sgl memory.
5568 * This array will hold the sglq_entry's for active IOs.
5571 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5574 size = sizeof(struct lpfc_sglq *);
5575 size *= phba->sli4_hba.max_cfg_param.max_xri;
5577 phba->sli4_hba.lpfc_sglq_active_list =
5578 kzalloc(size, GFP_KERNEL);
5579 if (!phba->sli4_hba.lpfc_sglq_active_list)
5585 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5586 * @phba: pointer to lpfc hba data structure.
5588 * This routine is invoked to walk through the array of active sglq entries
5589 * and free all of the resources.
5590 * This is just a place holder for now.
5593 lpfc_free_active_sgl(struct lpfc_hba *phba)
5595 kfree(phba->sli4_hba.lpfc_sglq_active_list);
5599 * lpfc_init_sgl_list - Allocate and initialize sgl list.
5600 * @phba: pointer to lpfc hba data structure.
5602 * This routine is invoked to allocate and initizlize the driver's sgl
5603 * list and set up the sgl xritag tag array accordingly.
5607 lpfc_init_sgl_list(struct lpfc_hba *phba)
5609 /* Initialize and populate the sglq list per host/VF. */
5610 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5611 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5613 /* els xri-sgl book keeping */
5614 phba->sli4_hba.els_xri_cnt = 0;
5616 /* scsi xri-buffer book keeping */
5617 phba->sli4_hba.scsi_xri_cnt = 0;
5621 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5622 * @phba: pointer to lpfc hba data structure.
5624 * This routine is invoked to post rpi header templates to the
5625 * port for those SLI4 ports that do not support extents. This routine
5626 * posts a PAGE_SIZE memory region to the port to hold up to
5627 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
5628 * and should be called only when interrupts are disabled.
5632 * -ERROR - otherwise.
5635 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5638 struct lpfc_rpi_hdr *rpi_hdr;
5640 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5641 if (!phba->sli4_hba.rpi_hdrs_in_use)
5643 if (phba->sli4_hba.extents_in_use)
5646 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5648 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5649 "0391 Error during rpi post operation\n");
5650 lpfc_sli4_remove_rpis(phba);
5658 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5659 * @phba: pointer to lpfc hba data structure.
5661 * This routine is invoked to allocate a single 4KB memory region to
5662 * support rpis and stores them in the phba. This single region
5663 * provides support for up to 64 rpis. The region is used globally
5667 * A valid rpi hdr on success.
5668 * A NULL pointer on any failure.
5670 struct lpfc_rpi_hdr *
5671 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5673 uint16_t rpi_limit, curr_rpi_range;
5674 struct lpfc_dmabuf *dmabuf;
5675 struct lpfc_rpi_hdr *rpi_hdr;
5679 * If the SLI4 port supports extents, posting the rpi header isn't
5680 * required. Set the expected maximum count and let the actual value
5681 * get set when extents are fully allocated.
5683 if (!phba->sli4_hba.rpi_hdrs_in_use)
5685 if (phba->sli4_hba.extents_in_use)
5688 /* The limit on the logical index is just the max_rpi count. */
5689 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5690 phba->sli4_hba.max_cfg_param.max_rpi - 1;
5692 spin_lock_irq(&phba->hbalock);
5694 * Establish the starting RPI in this header block. The starting
5695 * rpi is normalized to a zero base because the physical rpi is
5698 curr_rpi_range = phba->sli4_hba.next_rpi;
5699 spin_unlock_irq(&phba->hbalock);
5702 * The port has a limited number of rpis. The increment here
5703 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5704 * and to allow the full max_rpi range per port.
5706 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5707 rpi_count = rpi_limit - curr_rpi_range;
5709 rpi_count = LPFC_RPI_HDR_COUNT;
5714 * First allocate the protocol header region for the port. The
5715 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5717 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5721 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5722 LPFC_HDR_TEMPLATE_SIZE,
5725 if (!dmabuf->virt) {
5727 goto err_free_dmabuf;
5730 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5731 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5733 goto err_free_coherent;
5736 /* Save the rpi header data for cleanup later. */
5737 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5739 goto err_free_coherent;
5741 rpi_hdr->dmabuf = dmabuf;
5742 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5743 rpi_hdr->page_count = 1;
5744 spin_lock_irq(&phba->hbalock);
5746 /* The rpi_hdr stores the logical index only. */
5747 rpi_hdr->start_rpi = curr_rpi_range;
5748 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5751 * The next_rpi stores the next logical module-64 rpi value used
5752 * to post physical rpis in subsequent rpi postings.
5754 phba->sli4_hba.next_rpi += rpi_count;
5755 spin_unlock_irq(&phba->hbalock);
5759 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5760 dmabuf->virt, dmabuf->phys);
5767 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5768 * @phba: pointer to lpfc hba data structure.
5770 * This routine is invoked to remove all memory resources allocated
5771 * to support rpis for SLI4 ports not supporting extents. This routine
5772 * presumes the caller has released all rpis consumed by fabric or port
5773 * logins and is prepared to have the header pages removed.
5776 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5778 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5780 if (!phba->sli4_hba.rpi_hdrs_in_use)
5783 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5784 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5785 list_del(&rpi_hdr->list);
5786 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5787 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5788 kfree(rpi_hdr->dmabuf);
5792 /* There are no rpis available to the port now. */
5793 phba->sli4_hba.next_rpi = 0;
5797 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5798 * @pdev: pointer to pci device data structure.
5800 * This routine is invoked to allocate the driver hba data structure for an
5801 * HBA device. If the allocation is successful, the phba reference to the
5802 * PCI device data structure is set.
5805 * pointer to @phba - successful
5808 static struct lpfc_hba *
5809 lpfc_hba_alloc(struct pci_dev *pdev)
5811 struct lpfc_hba *phba;
5813 /* Allocate memory for HBA structure */
5814 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5816 dev_err(&pdev->dev, "failed to allocate hba struct\n");
5820 /* Set reference to PCI device in HBA structure */
5821 phba->pcidev = pdev;
5823 /* Assign an unused board number */
5824 phba->brd_no = lpfc_get_instance();
5825 if (phba->brd_no < 0) {
5830 spin_lock_init(&phba->ct_ev_lock);
5831 INIT_LIST_HEAD(&phba->ct_ev_waiters);
5837 * lpfc_hba_free - Free driver hba data structure with a device.
5838 * @phba: pointer to lpfc hba data structure.
5840 * This routine is invoked to free the driver hba data structure with an
5844 lpfc_hba_free(struct lpfc_hba *phba)
5846 /* Release the driver assigned board number */
5847 idr_remove(&lpfc_hba_index, phba->brd_no);
5849 /* Free memory allocated with sli rings */
5850 kfree(phba->sli.ring);
5851 phba->sli.ring = NULL;
5858 * lpfc_create_shost - Create hba physical port with associated scsi host.
5859 * @phba: pointer to lpfc hba data structure.
5861 * This routine is invoked to create HBA physical port and associate a SCSI
5866 * other values - error
5869 lpfc_create_shost(struct lpfc_hba *phba)
5871 struct lpfc_vport *vport;
5872 struct Scsi_Host *shost;
5874 /* Initialize HBA FC structure */
5875 phba->fc_edtov = FF_DEF_EDTOV;
5876 phba->fc_ratov = FF_DEF_RATOV;
5877 phba->fc_altov = FF_DEF_ALTOV;
5878 phba->fc_arbtov = FF_DEF_ARBTOV;
5880 atomic_set(&phba->sdev_cnt, 0);
5881 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5885 shost = lpfc_shost_from_vport(vport);
5886 phba->pport = vport;
5887 lpfc_debugfs_initialize(vport);
5888 /* Put reference to SCSI host to driver's device private data */
5889 pci_set_drvdata(phba->pcidev, shost);
5895 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5896 * @phba: pointer to lpfc hba data structure.
5898 * This routine is invoked to destroy HBA physical port and the associated
5902 lpfc_destroy_shost(struct lpfc_hba *phba)
5904 struct lpfc_vport *vport = phba->pport;
5906 /* Destroy physical port that associated with the SCSI host */
5907 destroy_port(vport);
5913 * lpfc_setup_bg - Setup Block guard structures and debug areas.
5914 * @phba: pointer to lpfc hba data structure.
5915 * @shost: the shost to be used to detect Block guard settings.
5917 * This routine sets up the local Block guard protocol settings for @shost.
5918 * This routine also allocates memory for debugging bg buffers.
5921 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5927 if (lpfc_prot_mask && lpfc_prot_guard) {
5928 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5929 "1478 Registering BlockGuard with the "
5932 old_mask = lpfc_prot_mask;
5933 old_guard = lpfc_prot_guard;
5935 /* Only allow supported values */
5936 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
5937 SHOST_DIX_TYPE0_PROTECTION |
5938 SHOST_DIX_TYPE1_PROTECTION);
5939 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
5941 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
5942 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
5943 lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
5945 if (lpfc_prot_mask && lpfc_prot_guard) {
5946 if ((old_mask != lpfc_prot_mask) ||
5947 (old_guard != lpfc_prot_guard))
5948 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5949 "1475 Registering BlockGuard with the "
5950 "SCSI layer: mask %d guard %d\n",
5951 lpfc_prot_mask, lpfc_prot_guard);
5953 scsi_host_set_prot(shost, lpfc_prot_mask);
5954 scsi_host_set_guard(shost, lpfc_prot_guard);
5956 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5957 "1479 Not Registering BlockGuard with the SCSI "
5958 "layer, Bad protection parameters: %d %d\n",
5959 old_mask, old_guard);
5962 if (!_dump_buf_data) {
5964 spin_lock_init(&_dump_buf_lock);
5966 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5967 if (_dump_buf_data) {
5968 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5969 "9043 BLKGRD: allocated %d pages for "
5970 "_dump_buf_data at 0x%p\n",
5971 (1 << pagecnt), _dump_buf_data);
5972 _dump_buf_data_order = pagecnt;
5973 memset(_dump_buf_data, 0,
5974 ((1 << PAGE_SHIFT) << pagecnt));
5979 if (!_dump_buf_data_order)
5980 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5981 "9044 BLKGRD: ERROR unable to allocate "
5982 "memory for hexdump\n");
5984 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5985 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5986 "\n", _dump_buf_data);
5987 if (!_dump_buf_dif) {
5990 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5991 if (_dump_buf_dif) {
5992 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5993 "9046 BLKGRD: allocated %d pages for "
5994 "_dump_buf_dif at 0x%p\n",
5995 (1 << pagecnt), _dump_buf_dif);
5996 _dump_buf_dif_order = pagecnt;
5997 memset(_dump_buf_dif, 0,
5998 ((1 << PAGE_SHIFT) << pagecnt));
6003 if (!_dump_buf_dif_order)
6004 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6005 "9047 BLKGRD: ERROR unable to allocate "
6006 "memory for hexdump\n");
6008 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6009 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6014 * lpfc_post_init_setup - Perform necessary device post initialization setup.
6015 * @phba: pointer to lpfc hba data structure.
6017 * This routine is invoked to perform all the necessary post initialization
6018 * setup for the device.
6021 lpfc_post_init_setup(struct lpfc_hba *phba)
6023 struct Scsi_Host *shost;
6024 struct lpfc_adapter_event_header adapter_event;
6026 /* Get the default values for Model Name and Description */
6027 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6030 * hba setup may have changed the hba_queue_depth so we need to
6031 * adjust the value of can_queue.
6033 shost = pci_get_drvdata(phba->pcidev);
6034 shost->can_queue = phba->cfg_hba_queue_depth - 10;
6035 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6036 lpfc_setup_bg(phba, shost);
6038 lpfc_host_attrib_init(shost);
6040 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6041 spin_lock_irq(shost->host_lock);
6042 lpfc_poll_start_timer(phba);
6043 spin_unlock_irq(shost->host_lock);
6046 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6047 "0428 Perform SCSI scan\n");
6048 /* Send board arrival event to upper layer */
6049 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6050 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6051 fc_host_post_vendor_event(shost, fc_get_event_number(),
6052 sizeof(adapter_event),
6053 (char *) &adapter_event,
6059 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6060 * @phba: pointer to lpfc hba data structure.
6062 * This routine is invoked to set up the PCI device memory space for device
6063 * with SLI-3 interface spec.
6067 * other values - error
6070 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6072 struct pci_dev *pdev;
6073 unsigned long bar0map_len, bar2map_len;
6076 int error = -ENODEV;
6078 /* Obtain PCI device reference */
6082 pdev = phba->pcidev;
6084 /* Set the device DMA mask size */
6085 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6086 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6087 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6088 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6093 /* Get the bus address of Bar0 and Bar2 and the number of bytes
6094 * required by each mapping.
6096 phba->pci_bar0_map = pci_resource_start(pdev, 0);
6097 bar0map_len = pci_resource_len(pdev, 0);
6099 phba->pci_bar2_map = pci_resource_start(pdev, 2);
6100 bar2map_len = pci_resource_len(pdev, 2);
6102 /* Map HBA SLIM to a kernel virtual address. */
6103 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6104 if (!phba->slim_memmap_p) {
6105 dev_printk(KERN_ERR, &pdev->dev,
6106 "ioremap failed for SLIM memory.\n");
6110 /* Map HBA Control Registers to a kernel virtual address. */
6111 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6112 if (!phba->ctrl_regs_memmap_p) {
6113 dev_printk(KERN_ERR, &pdev->dev,
6114 "ioremap failed for HBA control registers.\n");
6115 goto out_iounmap_slim;
6118 /* Allocate memory for SLI-2 structures */
6119 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
6123 if (!phba->slim2p.virt)
6126 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
6127 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6128 phba->mbox_ext = (phba->slim2p.virt +
6129 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6130 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6131 phba->IOCBs = (phba->slim2p.virt +
6132 offsetof(struct lpfc_sli2_slim, IOCBs));
6134 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6135 lpfc_sli_hbq_size(),
6136 &phba->hbqslimp.phys,
6138 if (!phba->hbqslimp.virt)
6141 hbq_count = lpfc_sli_hbq_count();
6142 ptr = phba->hbqslimp.virt;
6143 for (i = 0; i < hbq_count; ++i) {
6144 phba->hbqs[i].hbq_virt = ptr;
6145 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6146 ptr += (lpfc_hbq_defs[i]->entry_count *
6147 sizeof(struct lpfc_hbq_entry));
6149 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6150 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6152 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6154 INIT_LIST_HEAD(&phba->rb_pend_list);
6156 phba->MBslimaddr = phba->slim_memmap_p;
6157 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6158 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6159 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6160 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6165 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6166 phba->slim2p.virt, phba->slim2p.phys);
6168 iounmap(phba->ctrl_regs_memmap_p);
6170 iounmap(phba->slim_memmap_p);
6176 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6177 * @phba: pointer to lpfc hba data structure.
6179 * This routine is invoked to unset the PCI device memory space for device
6180 * with SLI-3 interface spec.
6183 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6185 struct pci_dev *pdev;
6187 /* Obtain PCI device reference */
6191 pdev = phba->pcidev;
6193 /* Free coherent DMA memory allocated */
6194 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6195 phba->hbqslimp.virt, phba->hbqslimp.phys);
6196 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6197 phba->slim2p.virt, phba->slim2p.phys);
6199 /* I/O memory unmap */
6200 iounmap(phba->ctrl_regs_memmap_p);
6201 iounmap(phba->slim_memmap_p);
6207 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6208 * @phba: pointer to lpfc hba data structure.
6210 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6211 * done and check status.
6213 * Return 0 if successful, otherwise -ENODEV.
6216 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6218 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6219 struct lpfc_register reg_data;
6220 int i, port_error = 0;
6223 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6224 memset(®_data, 0, sizeof(reg_data));
6225 if (!phba->sli4_hba.PSMPHRregaddr)
6228 /* Wait up to 30 seconds for the SLI Port POST done and ready */
6229 for (i = 0; i < 3000; i++) {
6230 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6231 &portsmphr_reg.word0) ||
6232 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6233 /* Port has a fatal POST error, break out */
6234 port_error = -ENODEV;
6237 if (LPFC_POST_STAGE_PORT_READY ==
6238 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6244 * If there was a port error during POST, then don't proceed with
6245 * other register reads as the data may not be valid. Just exit.
6248 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6249 "1408 Port Failed POST - portsmphr=0x%x, "
6250 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6251 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6252 portsmphr_reg.word0,
6253 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6254 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6255 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6256 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6257 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6258 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6259 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6260 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6262 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6263 "2534 Device Info: SLIFamily=0x%x, "
6264 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6265 "SLIHint_2=0x%x, FT=0x%x\n",
6266 bf_get(lpfc_sli_intf_sli_family,
6267 &phba->sli4_hba.sli_intf),
6268 bf_get(lpfc_sli_intf_slirev,
6269 &phba->sli4_hba.sli_intf),
6270 bf_get(lpfc_sli_intf_if_type,
6271 &phba->sli4_hba.sli_intf),
6272 bf_get(lpfc_sli_intf_sli_hint1,
6273 &phba->sli4_hba.sli_intf),
6274 bf_get(lpfc_sli_intf_sli_hint2,
6275 &phba->sli4_hba.sli_intf),
6276 bf_get(lpfc_sli_intf_func_type,
6277 &phba->sli4_hba.sli_intf));
6279 * Check for other Port errors during the initialization
6280 * process. Fail the load if the port did not come up
6283 if_type = bf_get(lpfc_sli_intf_if_type,
6284 &phba->sli4_hba.sli_intf);
6286 case LPFC_SLI_INTF_IF_TYPE_0:
6287 phba->sli4_hba.ue_mask_lo =
6288 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6289 phba->sli4_hba.ue_mask_hi =
6290 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6292 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6294 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6295 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6296 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6297 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6298 "1422 Unrecoverable Error "
6299 "Detected during POST "
6300 "uerr_lo_reg=0x%x, "
6301 "uerr_hi_reg=0x%x, "
6302 "ue_mask_lo_reg=0x%x, "
6303 "ue_mask_hi_reg=0x%x\n",
6306 phba->sli4_hba.ue_mask_lo,
6307 phba->sli4_hba.ue_mask_hi);
6308 port_error = -ENODEV;
6311 case LPFC_SLI_INTF_IF_TYPE_2:
6312 /* Final checks. The port status should be clean. */
6313 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6315 (bf_get(lpfc_sliport_status_err, ®_data) &&
6316 !bf_get(lpfc_sliport_status_rn, ®_data))) {
6317 phba->work_status[0] =
6318 readl(phba->sli4_hba.u.if_type2.
6320 phba->work_status[1] =
6321 readl(phba->sli4_hba.u.if_type2.
6323 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6324 "2888 Unrecoverable port error "
6325 "following POST: port status reg "
6326 "0x%x, port_smphr reg 0x%x, "
6327 "error 1=0x%x, error 2=0x%x\n",
6329 portsmphr_reg.word0,
6330 phba->work_status[0],
6331 phba->work_status[1]);
6332 port_error = -ENODEV;
6335 case LPFC_SLI_INTF_IF_TYPE_1:
6344 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6345 * @phba: pointer to lpfc hba data structure.
6346 * @if_type: The SLI4 interface type getting configured.
6348 * This routine is invoked to set up SLI4 BAR0 PCI config space register
6352 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6355 case LPFC_SLI_INTF_IF_TYPE_0:
6356 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6357 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6358 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6359 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6360 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6361 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6362 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6363 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6364 phba->sli4_hba.SLIINTFregaddr =
6365 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6367 case LPFC_SLI_INTF_IF_TYPE_2:
6368 phba->sli4_hba.u.if_type2.ERR1regaddr =
6369 phba->sli4_hba.conf_regs_memmap_p +
6370 LPFC_CTL_PORT_ER1_OFFSET;
6371 phba->sli4_hba.u.if_type2.ERR2regaddr =
6372 phba->sli4_hba.conf_regs_memmap_p +
6373 LPFC_CTL_PORT_ER2_OFFSET;
6374 phba->sli4_hba.u.if_type2.CTRLregaddr =
6375 phba->sli4_hba.conf_regs_memmap_p +
6376 LPFC_CTL_PORT_CTL_OFFSET;
6377 phba->sli4_hba.u.if_type2.STATUSregaddr =
6378 phba->sli4_hba.conf_regs_memmap_p +
6379 LPFC_CTL_PORT_STA_OFFSET;
6380 phba->sli4_hba.SLIINTFregaddr =
6381 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6382 phba->sli4_hba.PSMPHRregaddr =
6383 phba->sli4_hba.conf_regs_memmap_p +
6384 LPFC_CTL_PORT_SEM_OFFSET;
6385 phba->sli4_hba.RQDBregaddr =
6386 phba->sli4_hba.conf_regs_memmap_p +
6387 LPFC_ULP0_RQ_DOORBELL;
6388 phba->sli4_hba.WQDBregaddr =
6389 phba->sli4_hba.conf_regs_memmap_p +
6390 LPFC_ULP0_WQ_DOORBELL;
6391 phba->sli4_hba.EQCQDBregaddr =
6392 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6393 phba->sli4_hba.MQDBregaddr =
6394 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6395 phba->sli4_hba.BMBXregaddr =
6396 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6398 case LPFC_SLI_INTF_IF_TYPE_1:
6400 dev_printk(KERN_ERR, &phba->pcidev->dev,
6401 "FATAL - unsupported SLI4 interface type - %d\n",
6408 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6409 * @phba: pointer to lpfc hba data structure.
6411 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6415 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6417 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6418 LPFC_SLIPORT_IF0_SMPHR;
6419 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6421 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6423 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6428 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6429 * @phba: pointer to lpfc hba data structure.
6430 * @vf: virtual function number
6432 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6433 * based on the given viftual function number, @vf.
6435 * Return 0 if successful, otherwise -ENODEV.
6438 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6440 if (vf > LPFC_VIR_FUNC_MAX)
6443 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6444 vf * LPFC_VFR_PAGE_SIZE +
6445 LPFC_ULP0_RQ_DOORBELL);
6446 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6447 vf * LPFC_VFR_PAGE_SIZE +
6448 LPFC_ULP0_WQ_DOORBELL);
6449 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6450 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6451 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6452 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6453 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6454 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6459 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6460 * @phba: pointer to lpfc hba data structure.
6462 * This routine is invoked to create the bootstrap mailbox
6463 * region consistent with the SLI-4 interface spec. This
6464 * routine allocates all memory necessary to communicate
6465 * mailbox commands to the port and sets up all alignment
6466 * needs. No locks are expected to be held when calling
6471 * -ENOMEM - could not allocated memory.
6474 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6477 struct lpfc_dmabuf *dmabuf;
6478 struct dma_address *dma_address;
6482 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6487 * The bootstrap mailbox region is comprised of 2 parts
6488 * plus an alignment restriction of 16 bytes.
6490 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6491 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
6495 if (!dmabuf->virt) {
6499 memset(dmabuf->virt, 0, bmbx_size);
6502 * Initialize the bootstrap mailbox pointers now so that the register
6503 * operations are simple later. The mailbox dma address is required
6504 * to be 16-byte aligned. Also align the virtual memory as each
6505 * maibox is copied into the bmbx mailbox region before issuing the
6506 * command to the port.
6508 phba->sli4_hba.bmbx.dmabuf = dmabuf;
6509 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6511 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6512 LPFC_ALIGN_16_BYTE);
6513 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6514 LPFC_ALIGN_16_BYTE);
6517 * Set the high and low physical addresses now. The SLI4 alignment
6518 * requirement is 16 bytes and the mailbox is posted to the port
6519 * as two 30-bit addresses. The other data is a bit marking whether
6520 * the 30-bit address is the high or low address.
6521 * Upcast bmbx aphys to 64bits so shift instruction compiles
6522 * clean on 32 bit machines.
6524 dma_address = &phba->sli4_hba.bmbx.dma_address;
6525 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6526 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6527 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6528 LPFC_BMBX_BIT1_ADDR_HI);
6530 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6531 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6532 LPFC_BMBX_BIT1_ADDR_LO);
6537 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6538 * @phba: pointer to lpfc hba data structure.
6540 * This routine is invoked to teardown the bootstrap mailbox
6541 * region and release all host resources. This routine requires
6542 * the caller to ensure all mailbox commands recovered, no
6543 * additional mailbox comands are sent, and interrupts are disabled
6544 * before calling this routine.
6548 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6550 dma_free_coherent(&phba->pcidev->dev,
6551 phba->sli4_hba.bmbx.bmbx_size,
6552 phba->sli4_hba.bmbx.dmabuf->virt,
6553 phba->sli4_hba.bmbx.dmabuf->phys);
6555 kfree(phba->sli4_hba.bmbx.dmabuf);
6556 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6560 * lpfc_sli4_read_config - Get the config parameters.
6561 * @phba: pointer to lpfc hba data structure.
6563 * This routine is invoked to read the configuration parameters from the HBA.
6564 * The configuration parameters are used to set the base and maximum values
6565 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6566 * allocation for the port.
6570 * -ENOMEM - No available memory
6571 * -EIO - The mailbox failed to complete successfully.
6574 lpfc_sli4_read_config(struct lpfc_hba *phba)
6577 struct lpfc_mbx_read_config *rd_config;
6578 union lpfc_sli4_cfg_shdr *shdr;
6579 uint32_t shdr_status, shdr_add_status;
6580 struct lpfc_mbx_get_func_cfg *get_func_cfg;
6581 struct lpfc_rsrc_desc_fcfcoe *desc;
6583 uint32_t desc_count;
6584 int length, i, rc = 0, rc2;
6586 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6588 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6589 "2011 Unable to allocate memory for issuing "
6590 "SLI_CONFIG_SPECIAL mailbox command\n");
6594 lpfc_read_config(phba, pmb);
6596 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6597 if (rc != MBX_SUCCESS) {
6598 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6599 "2012 Mailbox failed , mbxCmd x%x "
6600 "READ_CONFIG, mbxStatus x%x\n",
6601 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6602 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6605 rd_config = &pmb->u.mqe.un.rd_config;
6606 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6607 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6608 phba->sli4_hba.lnk_info.lnk_tp =
6609 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6610 phba->sli4_hba.lnk_info.lnk_no =
6611 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6612 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6613 "3081 lnk_type:%d, lnk_numb:%d\n",
6614 phba->sli4_hba.lnk_info.lnk_tp,
6615 phba->sli4_hba.lnk_info.lnk_no);
6617 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6618 "3082 Mailbox (x%x) returned ldv:x0\n",
6619 bf_get(lpfc_mqe_command, &pmb->u.mqe));
6620 phba->sli4_hba.extents_in_use =
6621 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6622 phba->sli4_hba.max_cfg_param.max_xri =
6623 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6624 phba->sli4_hba.max_cfg_param.xri_base =
6625 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6626 phba->sli4_hba.max_cfg_param.max_vpi =
6627 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6628 phba->sli4_hba.max_cfg_param.vpi_base =
6629 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6630 phba->sli4_hba.max_cfg_param.max_rpi =
6631 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6632 phba->sli4_hba.max_cfg_param.rpi_base =
6633 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6634 phba->sli4_hba.max_cfg_param.max_vfi =
6635 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6636 phba->sli4_hba.max_cfg_param.vfi_base =
6637 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6638 phba->sli4_hba.max_cfg_param.max_fcfi =
6639 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6640 phba->sli4_hba.max_cfg_param.max_eq =
6641 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6642 phba->sli4_hba.max_cfg_param.max_rq =
6643 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6644 phba->sli4_hba.max_cfg_param.max_wq =
6645 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6646 phba->sli4_hba.max_cfg_param.max_cq =
6647 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6648 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6649 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6650 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6651 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6652 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6653 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6654 phba->max_vports = phba->max_vpi;
6655 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6656 "2003 cfg params Extents? %d "
6662 phba->sli4_hba.extents_in_use,
6663 phba->sli4_hba.max_cfg_param.xri_base,
6664 phba->sli4_hba.max_cfg_param.max_xri,
6665 phba->sli4_hba.max_cfg_param.vpi_base,
6666 phba->sli4_hba.max_cfg_param.max_vpi,
6667 phba->sli4_hba.max_cfg_param.vfi_base,
6668 phba->sli4_hba.max_cfg_param.max_vfi,
6669 phba->sli4_hba.max_cfg_param.rpi_base,
6670 phba->sli4_hba.max_cfg_param.max_rpi,
6671 phba->sli4_hba.max_cfg_param.max_fcfi);
6677 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
6678 if (phba->cfg_hba_queue_depth >
6679 (phba->sli4_hba.max_cfg_param.max_xri -
6680 lpfc_sli4_get_els_iocb_cnt(phba)))
6681 phba->cfg_hba_queue_depth =
6682 phba->sli4_hba.max_cfg_param.max_xri -
6683 lpfc_sli4_get_els_iocb_cnt(phba);
6685 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6686 LPFC_SLI_INTF_IF_TYPE_2)
6689 /* get the pf# and vf# for SLI4 if_type 2 port */
6690 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6691 sizeof(struct lpfc_sli4_cfg_mhdr));
6692 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6693 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6694 length, LPFC_SLI4_MBX_EMBED);
6696 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6697 shdr = (union lpfc_sli4_cfg_shdr *)
6698 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6699 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6700 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6701 if (rc2 || shdr_status || shdr_add_status) {
6702 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6703 "3026 Mailbox failed , mbxCmd x%x "
6704 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6705 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6706 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6710 /* search for fc_fcoe resrouce descriptor */
6711 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6712 desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6714 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6715 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6716 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6717 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6718 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6719 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6722 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6723 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6724 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6725 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6726 phba->sli4_hba.iov.pf_number =
6727 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6728 phba->sli4_hba.iov.vf_number =
6729 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6734 if (i < LPFC_RSRC_DESC_MAX_NUM)
6735 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6736 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6737 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6738 phba->sli4_hba.iov.vf_number);
6740 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6741 "3028 GET_FUNCTION_CONFIG: failed to find "
6742 "Resrouce Descriptor:x%x\n",
6743 LPFC_RSRC_DESC_TYPE_FCFCOE);
6746 mempool_free(pmb, phba->mbox_mem_pool);
6751 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6752 * @phba: pointer to lpfc hba data structure.
6754 * This routine is invoked to setup the port-side endian order when
6755 * the port if_type is 0. This routine has no function for other
6760 * -ENOMEM - No available memory
6761 * -EIO - The mailbox failed to complete successfully.
6764 lpfc_setup_endian_order(struct lpfc_hba *phba)
6766 LPFC_MBOXQ_t *mboxq;
6767 uint32_t if_type, rc = 0;
6768 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6769 HOST_ENDIAN_HIGH_WORD1};
6771 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6773 case LPFC_SLI_INTF_IF_TYPE_0:
6774 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6777 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6778 "0492 Unable to allocate memory for "
6779 "issuing SLI_CONFIG_SPECIAL mailbox "
6785 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6786 * two words to contain special data values and no other data.
6788 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6789 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6790 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6791 if (rc != MBX_SUCCESS) {
6792 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6793 "0493 SLI_CONFIG_SPECIAL mailbox "
6794 "failed with status x%x\n",
6798 mempool_free(mboxq, phba->mbox_mem_pool);
6800 case LPFC_SLI_INTF_IF_TYPE_2:
6801 case LPFC_SLI_INTF_IF_TYPE_1:
6809 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
6810 * @phba: pointer to lpfc hba data structure.
6812 * This routine is invoked to check the user settable queue counts for EQs and
6813 * CQs. after this routine is called the counts will be set to valid values that
6814 * adhere to the constraints of the system's interrupt vectors and the port's
6819 * -ENOMEM - No available memory
6822 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
6824 int cfg_fcp_io_channel;
6831 * Sanity check for configured queue parameters against the run-time
6835 /* Sanity check on HBA EQ parameters */
6836 cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
6838 /* It doesn't make sense to have more io channels then online CPUs */
6839 for_each_present_cpu(cpu) {
6840 if (cpu_online(cpu))
6844 phba->sli4_hba.num_online_cpu = i;
6845 phba->sli4_hba.num_present_cpu = j;
6847 if (i < cfg_fcp_io_channel) {
6848 lpfc_printf_log(phba,
6850 "3188 Reducing IO channels to match number of "
6851 "online CPUs: from %d to %d\n",
6852 cfg_fcp_io_channel, i);
6853 cfg_fcp_io_channel = i;
6856 if (cfg_fcp_io_channel >
6857 phba->sli4_hba.max_cfg_param.max_eq) {
6858 if (phba->sli4_hba.max_cfg_param.max_eq <
6859 LPFC_FCP_IO_CHAN_MIN) {
6860 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6861 "2574 Not enough EQs (%d) from the "
6862 "pci function for supporting FCP "
6864 phba->sli4_hba.max_cfg_param.max_eq,
6865 phba->cfg_fcp_io_channel);
6868 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6869 "2575 Reducing IO channels to match number of "
6870 "available EQs: from %d to %d\n",
6872 phba->sli4_hba.max_cfg_param.max_eq);
6873 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq;
6876 /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */
6878 /* The actual number of FCP event queues adopted */
6879 phba->cfg_fcp_eq_count = cfg_fcp_io_channel;
6880 phba->cfg_fcp_wq_count = cfg_fcp_io_channel;
6881 phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
6883 /* Get EQ depth from module parameter, fake the default for now */
6884 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6885 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
6887 /* Get CQ depth from module parameter, fake the default for now */
6888 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6889 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6897 * lpfc_sli4_queue_create - Create all the SLI4 queues
6898 * @phba: pointer to lpfc hba data structure.
6900 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6901 * operation. For each SLI4 queue type, the parameters such as queue entry
6902 * count (queue depth) shall be taken from the module parameter. For now,
6903 * we just use some constant number as place holder.
6907 * -ENOMEM - No availble memory
6908 * -EIO - The mailbox failed to complete successfully.
6911 lpfc_sli4_queue_create(struct lpfc_hba *phba)
6913 struct lpfc_queue *qdesc;
6917 * Create HBA Record arrays.
6919 if (!phba->cfg_fcp_io_channel)
6922 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6923 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6924 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6925 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6926 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6927 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6929 phba->sli4_hba.hba_eq = kzalloc((sizeof(struct lpfc_queue *) *
6930 phba->cfg_fcp_io_channel), GFP_KERNEL);
6931 if (!phba->sli4_hba.hba_eq) {
6932 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6933 "2576 Failed allocate memory for "
6934 "fast-path EQ record array\n");
6938 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6939 phba->cfg_fcp_io_channel), GFP_KERNEL);
6940 if (!phba->sli4_hba.fcp_cq) {
6941 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6942 "2577 Failed allocate memory for fast-path "
6943 "CQ record array\n");
6947 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6948 phba->cfg_fcp_io_channel), GFP_KERNEL);
6949 if (!phba->sli4_hba.fcp_wq) {
6950 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6951 "2578 Failed allocate memory for fast-path "
6952 "WQ record array\n");
6957 * Since the first EQ can have multiple CQs associated with it,
6958 * this array is used to quickly see if we have a FCP fast-path
6961 phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
6962 phba->cfg_fcp_io_channel), GFP_KERNEL);
6963 if (!phba->sli4_hba.fcp_cq_map) {
6964 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6965 "2545 Failed allocate memory for fast-path "
6971 * Create HBA Event Queues (EQs). The cfg_fcp_io_channel specifies
6972 * how many EQs to create.
6974 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6977 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6978 phba->sli4_hba.eq_ecount);
6980 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6981 "0497 Failed allocate EQ (%d)\n", idx);
6984 phba->sli4_hba.hba_eq[idx] = qdesc;
6986 /* Create Fast Path FCP CQs */
6987 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6988 phba->sli4_hba.cq_ecount);
6990 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6991 "0499 Failed allocate fast-path FCP "
6995 phba->sli4_hba.fcp_cq[idx] = qdesc;
6997 /* Create Fast Path FCP WQs */
6998 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6999 phba->sli4_hba.wq_ecount);
7001 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7002 "0503 Failed allocate fast-path FCP "
7006 phba->sli4_hba.fcp_wq[idx] = qdesc;
7011 * Create Slow Path Completion Queues (CQs)
7014 /* Create slow-path Mailbox Command Complete Queue */
7015 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7016 phba->sli4_hba.cq_ecount);
7018 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7019 "0500 Failed allocate slow-path mailbox CQ\n");
7022 phba->sli4_hba.mbx_cq = qdesc;
7024 /* Create slow-path ELS Complete Queue */
7025 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7026 phba->sli4_hba.cq_ecount);
7028 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7029 "0501 Failed allocate slow-path ELS CQ\n");
7032 phba->sli4_hba.els_cq = qdesc;
7036 * Create Slow Path Work Queues (WQs)
7039 /* Create Mailbox Command Queue */
7041 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7042 phba->sli4_hba.mq_ecount);
7044 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7045 "0505 Failed allocate slow-path MQ\n");
7048 phba->sli4_hba.mbx_wq = qdesc;
7051 * Create ELS Work Queues
7054 /* Create slow-path ELS Work Queue */
7055 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7056 phba->sli4_hba.wq_ecount);
7058 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7059 "0504 Failed allocate slow-path ELS WQ\n");
7062 phba->sli4_hba.els_wq = qdesc;
7065 * Create Receive Queue (RQ)
7068 /* Create Receive Queue for header */
7069 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7070 phba->sli4_hba.rq_ecount);
7072 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7073 "0506 Failed allocate receive HRQ\n");
7076 phba->sli4_hba.hdr_rq = qdesc;
7078 /* Create Receive Queue for data */
7079 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7080 phba->sli4_hba.rq_ecount);
7082 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7083 "0507 Failed allocate receive DRQ\n");
7086 phba->sli4_hba.dat_rq = qdesc;
7091 lpfc_sli4_queue_destroy(phba);
7096 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7097 * @phba: pointer to lpfc hba data structure.
7099 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7104 * -ENOMEM - No available memory
7105 * -EIO - The mailbox failed to complete successfully.
7108 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7112 if (phba->sli4_hba.hba_eq != NULL) {
7113 /* Release HBA event queue */
7114 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7115 if (phba->sli4_hba.hba_eq[idx] != NULL) {
7116 lpfc_sli4_queue_free(
7117 phba->sli4_hba.hba_eq[idx]);
7118 phba->sli4_hba.hba_eq[idx] = NULL;
7121 kfree(phba->sli4_hba.hba_eq);
7122 phba->sli4_hba.hba_eq = NULL;
7125 if (phba->sli4_hba.fcp_cq != NULL) {
7126 /* Release FCP completion queue */
7127 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7128 if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7129 lpfc_sli4_queue_free(
7130 phba->sli4_hba.fcp_cq[idx]);
7131 phba->sli4_hba.fcp_cq[idx] = NULL;
7134 kfree(phba->sli4_hba.fcp_cq);
7135 phba->sli4_hba.fcp_cq = NULL;
7138 if (phba->sli4_hba.fcp_wq != NULL) {
7139 /* Release FCP work queue */
7140 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7141 if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7142 lpfc_sli4_queue_free(
7143 phba->sli4_hba.fcp_wq[idx]);
7144 phba->sli4_hba.fcp_wq[idx] = NULL;
7147 kfree(phba->sli4_hba.fcp_wq);
7148 phba->sli4_hba.fcp_wq = NULL;
7151 if (phba->pci_bar0_memmap_p) {
7152 iounmap(phba->pci_bar0_memmap_p);
7153 phba->pci_bar0_memmap_p = NULL;
7155 if (phba->pci_bar2_memmap_p) {
7156 iounmap(phba->pci_bar2_memmap_p);
7157 phba->pci_bar2_memmap_p = NULL;
7159 if (phba->pci_bar4_memmap_p) {
7160 iounmap(phba->pci_bar4_memmap_p);
7161 phba->pci_bar4_memmap_p = NULL;
7164 /* Release FCP CQ mapping array */
7165 if (phba->sli4_hba.fcp_cq_map != NULL) {
7166 kfree(phba->sli4_hba.fcp_cq_map);
7167 phba->sli4_hba.fcp_cq_map = NULL;
7170 /* Release mailbox command work queue */
7171 if (phba->sli4_hba.mbx_wq != NULL) {
7172 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
7173 phba->sli4_hba.mbx_wq = NULL;
7176 /* Release ELS work queue */
7177 if (phba->sli4_hba.els_wq != NULL) {
7178 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7179 phba->sli4_hba.els_wq = NULL;
7182 /* Release unsolicited receive queue */
7183 if (phba->sli4_hba.hdr_rq != NULL) {
7184 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7185 phba->sli4_hba.hdr_rq = NULL;
7187 if (phba->sli4_hba.dat_rq != NULL) {
7188 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7189 phba->sli4_hba.dat_rq = NULL;
7192 /* Release ELS complete queue */
7193 if (phba->sli4_hba.els_cq != NULL) {
7194 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7195 phba->sli4_hba.els_cq = NULL;
7198 /* Release mailbox command complete queue */
7199 if (phba->sli4_hba.mbx_cq != NULL) {
7200 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7201 phba->sli4_hba.mbx_cq = NULL;
7208 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7209 * @phba: pointer to lpfc hba data structure.
7211 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7216 * -ENOMEM - No available memory
7217 * -EIO - The mailbox failed to complete successfully.
7220 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7222 struct lpfc_sli *psli = &phba->sli;
7223 struct lpfc_sli_ring *pring;
7225 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7226 int fcp_cq_index = 0;
7227 uint32_t shdr_status, shdr_add_status;
7228 union lpfc_sli4_cfg_shdr *shdr;
7229 LPFC_MBOXQ_t *mboxq;
7232 /* Check for dual-ULP support */
7233 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7235 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7236 "3249 Unable to allocate memory for "
7237 "QUERY_FW_CFG mailbox command\n");
7240 length = (sizeof(struct lpfc_mbx_query_fw_config) -
7241 sizeof(struct lpfc_sli4_cfg_mhdr));
7242 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7243 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
7244 length, LPFC_SLI4_MBX_EMBED);
7246 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7248 shdr = (union lpfc_sli4_cfg_shdr *)
7249 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7250 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7251 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7252 if (shdr_status || shdr_add_status || rc) {
7253 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7254 "3250 QUERY_FW_CFG mailbox failed with status "
7255 "x%x add_status x%x, mbx status x%x\n",
7256 shdr_status, shdr_add_status, rc);
7257 if (rc != MBX_TIMEOUT)
7258 mempool_free(mboxq, phba->mbox_mem_pool);
7263 phba->sli4_hba.fw_func_mode =
7264 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
7265 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
7266 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
7267 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7268 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
7269 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
7270 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
7272 if (rc != MBX_TIMEOUT)
7273 mempool_free(mboxq, phba->mbox_mem_pool);
7276 * Set up HBA Event Queues (EQs)
7279 /* Set up HBA event queue */
7280 if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7281 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7282 "3147 Fast-path EQs not allocated\n");
7286 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7287 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7288 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7289 "0522 Fast-path EQ (%d) not "
7290 "allocated\n", fcp_eqidx);
7292 goto out_destroy_hba_eq;
7294 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7295 (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7297 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7298 "0523 Failed setup of fast-path EQ "
7299 "(%d), rc = 0x%x\n", fcp_eqidx, rc);
7300 goto out_destroy_hba_eq;
7302 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7303 "2584 HBA EQ setup: "
7304 "queue[%d]-id=%d\n", fcp_eqidx,
7305 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7308 /* Set up fast-path FCP Response Complete Queue */
7309 if (!phba->sli4_hba.fcp_cq) {
7310 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7311 "3148 Fast-path FCP CQ array not "
7314 goto out_destroy_hba_eq;
7317 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7318 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7319 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7320 "0526 Fast-path FCP CQ (%d) not "
7321 "allocated\n", fcp_cqidx);
7323 goto out_destroy_fcp_cq;
7325 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7326 phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7328 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7329 "0527 Failed setup of fast-path FCP "
7330 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
7331 goto out_destroy_fcp_cq;
7334 /* Setup fcp_cq_map for fast lookup */
7335 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7336 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7338 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7339 "2588 FCP CQ setup: cq[%d]-id=%d, "
7340 "parent seq[%d]-id=%d\n",
7342 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7344 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7347 /* Set up fast-path FCP Work Queue */
7348 if (!phba->sli4_hba.fcp_wq) {
7349 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7350 "3149 Fast-path FCP WQ array not "
7353 goto out_destroy_fcp_cq;
7356 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7357 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7358 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7359 "0534 Fast-path FCP WQ (%d) not "
7360 "allocated\n", fcp_wqidx);
7362 goto out_destroy_fcp_wq;
7364 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7365 phba->sli4_hba.fcp_cq[fcp_wqidx],
7368 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7369 "0535 Failed setup of fast-path FCP "
7370 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
7371 goto out_destroy_fcp_wq;
7374 /* Bind this WQ to the next FCP ring */
7375 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7376 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7377 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7379 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7380 "2591 FCP WQ setup: wq[%d]-id=%d, "
7381 "parent cq[%d]-id=%d\n",
7383 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7385 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7388 * Set up Complete Queues (CQs)
7391 /* Set up slow-path MBOX Complete Queue as the first CQ */
7392 if (!phba->sli4_hba.mbx_cq) {
7393 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7394 "0528 Mailbox CQ not allocated\n");
7396 goto out_destroy_fcp_wq;
7398 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7399 phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7401 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7402 "0529 Failed setup of slow-path mailbox CQ: "
7404 goto out_destroy_fcp_wq;
7406 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7407 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7408 phba->sli4_hba.mbx_cq->queue_id,
7409 phba->sli4_hba.hba_eq[0]->queue_id);
7411 /* Set up slow-path ELS Complete Queue */
7412 if (!phba->sli4_hba.els_cq) {
7413 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7414 "0530 ELS CQ not allocated\n");
7416 goto out_destroy_mbx_cq;
7418 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7419 phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7421 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7422 "0531 Failed setup of slow-path ELS CQ: "
7424 goto out_destroy_mbx_cq;
7426 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7427 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7428 phba->sli4_hba.els_cq->queue_id,
7429 phba->sli4_hba.hba_eq[0]->queue_id);
7432 * Set up all the Work Queues (WQs)
7435 /* Set up Mailbox Command Queue */
7436 if (!phba->sli4_hba.mbx_wq) {
7437 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7438 "0538 Slow-path MQ not allocated\n");
7440 goto out_destroy_els_cq;
7442 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7443 phba->sli4_hba.mbx_cq, LPFC_MBOX);
7445 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7446 "0539 Failed setup of slow-path MQ: "
7448 goto out_destroy_els_cq;
7450 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7451 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7452 phba->sli4_hba.mbx_wq->queue_id,
7453 phba->sli4_hba.mbx_cq->queue_id);
7455 /* Set up slow-path ELS Work Queue */
7456 if (!phba->sli4_hba.els_wq) {
7457 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7458 "0536 Slow-path ELS WQ not allocated\n");
7460 goto out_destroy_mbx_wq;
7462 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7463 phba->sli4_hba.els_cq, LPFC_ELS);
7465 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7466 "0537 Failed setup of slow-path ELS WQ: "
7468 goto out_destroy_mbx_wq;
7471 /* Bind this WQ to the ELS ring */
7472 pring = &psli->ring[LPFC_ELS_RING];
7473 pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7474 phba->sli4_hba.els_cq->pring = pring;
7476 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7477 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7478 phba->sli4_hba.els_wq->queue_id,
7479 phba->sli4_hba.els_cq->queue_id);
7482 * Create Receive Queue (RQ)
7484 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7485 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7486 "0540 Receive Queue not allocated\n");
7488 goto out_destroy_els_wq;
7491 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7492 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7494 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7495 phba->sli4_hba.els_cq, LPFC_USOL);
7497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7498 "0541 Failed setup of Receive Queue: "
7500 goto out_destroy_fcp_wq;
7503 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7504 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7505 "parent cq-id=%d\n",
7506 phba->sli4_hba.hdr_rq->queue_id,
7507 phba->sli4_hba.dat_rq->queue_id,
7508 phba->sli4_hba.els_cq->queue_id);
7512 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7514 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7516 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7518 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7520 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7521 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7523 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7524 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7526 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7527 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7533 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7534 * @phba: pointer to lpfc hba data structure.
7536 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7541 * -ENOMEM - No available memory
7542 * -EIO - The mailbox failed to complete successfully.
7545 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7549 /* Unset mailbox command work queue */
7550 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7551 /* Unset ELS work queue */
7552 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7553 /* Unset unsolicited receive queue */
7554 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7555 /* Unset FCP work queue */
7556 if (phba->sli4_hba.fcp_wq) {
7557 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7559 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7561 /* Unset mailbox command complete queue */
7562 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7563 /* Unset ELS complete queue */
7564 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7565 /* Unset FCP response complete queue */
7566 if (phba->sli4_hba.fcp_cq) {
7567 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7569 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7571 /* Unset fast-path event queue */
7572 if (phba->sli4_hba.hba_eq) {
7573 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7575 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
7580 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7581 * @phba: pointer to lpfc hba data structure.
7583 * This routine is invoked to allocate and set up a pool of completion queue
7584 * events. The body of the completion queue event is a completion queue entry
7585 * CQE. For now, this pool is used for the interrupt service routine to queue
7586 * the following HBA completion queue events for the worker thread to process:
7587 * - Mailbox asynchronous events
7588 * - Receive queue completion unsolicited events
7589 * Later, this can be used for all the slow-path events.
7593 * -ENOMEM - No available memory
7596 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7598 struct lpfc_cq_event *cq_event;
7601 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7602 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7604 goto out_pool_create_fail;
7605 list_add_tail(&cq_event->list,
7606 &phba->sli4_hba.sp_cqe_event_pool);
7610 out_pool_create_fail:
7611 lpfc_sli4_cq_event_pool_destroy(phba);
7616 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7617 * @phba: pointer to lpfc hba data structure.
7619 * This routine is invoked to free the pool of completion queue events at
7620 * driver unload time. Note that, it is the responsibility of the driver
7621 * cleanup routine to free all the outstanding completion-queue events
7622 * allocated from this pool back into the pool before invoking this routine
7623 * to destroy the pool.
7626 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7628 struct lpfc_cq_event *cq_event, *next_cq_event;
7630 list_for_each_entry_safe(cq_event, next_cq_event,
7631 &phba->sli4_hba.sp_cqe_event_pool, list) {
7632 list_del(&cq_event->list);
7638 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7639 * @phba: pointer to lpfc hba data structure.
7641 * This routine is the lock free version of the API invoked to allocate a
7642 * completion-queue event from the free pool.
7644 * Return: Pointer to the newly allocated completion-queue event if successful
7647 struct lpfc_cq_event *
7648 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7650 struct lpfc_cq_event *cq_event = NULL;
7652 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7653 struct lpfc_cq_event, list);
7658 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7659 * @phba: pointer to lpfc hba data structure.
7661 * This routine is the lock version of the API invoked to allocate a
7662 * completion-queue event from the free pool.
7664 * Return: Pointer to the newly allocated completion-queue event if successful
7667 struct lpfc_cq_event *
7668 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7670 struct lpfc_cq_event *cq_event;
7671 unsigned long iflags;
7673 spin_lock_irqsave(&phba->hbalock, iflags);
7674 cq_event = __lpfc_sli4_cq_event_alloc(phba);
7675 spin_unlock_irqrestore(&phba->hbalock, iflags);
7680 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7681 * @phba: pointer to lpfc hba data structure.
7682 * @cq_event: pointer to the completion queue event to be freed.
7684 * This routine is the lock free version of the API invoked to release a
7685 * completion-queue event back into the free pool.
7688 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7689 struct lpfc_cq_event *cq_event)
7691 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7695 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7696 * @phba: pointer to lpfc hba data structure.
7697 * @cq_event: pointer to the completion queue event to be freed.
7699 * This routine is the lock version of the API invoked to release a
7700 * completion-queue event back into the free pool.
7703 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7704 struct lpfc_cq_event *cq_event)
7706 unsigned long iflags;
7707 spin_lock_irqsave(&phba->hbalock, iflags);
7708 __lpfc_sli4_cq_event_release(phba, cq_event);
7709 spin_unlock_irqrestore(&phba->hbalock, iflags);
7713 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7714 * @phba: pointer to lpfc hba data structure.
7716 * This routine is to free all the pending completion-queue events to the
7717 * back into the free pool for device reset.
7720 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7723 struct lpfc_cq_event *cqe;
7724 unsigned long iflags;
7726 /* Retrieve all the pending WCQEs from pending WCQE lists */
7727 spin_lock_irqsave(&phba->hbalock, iflags);
7728 /* Pending FCP XRI abort events */
7729 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
7731 /* Pending ELS XRI abort events */
7732 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
7734 /* Pending asynnc events */
7735 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
7737 spin_unlock_irqrestore(&phba->hbalock, iflags);
7739 while (!list_empty(&cqelist)) {
7740 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
7741 lpfc_sli4_cq_event_release(phba, cqe);
7746 * lpfc_pci_function_reset - Reset pci function.
7747 * @phba: pointer to lpfc hba data structure.
7749 * This routine is invoked to request a PCI function reset. It will destroys
7750 * all resources assigned to the PCI function which originates this request.
7754 * -ENOMEM - No available memory
7755 * -EIO - The mailbox failed to complete successfully.
7758 lpfc_pci_function_reset(struct lpfc_hba *phba)
7760 LPFC_MBOXQ_t *mboxq;
7761 uint32_t rc = 0, if_type;
7762 uint32_t shdr_status, shdr_add_status;
7763 uint32_t rdy_chk, num_resets = 0, reset_again = 0;
7764 union lpfc_sli4_cfg_shdr *shdr;
7765 struct lpfc_register reg_data;
7768 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7770 case LPFC_SLI_INTF_IF_TYPE_0:
7771 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7774 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7775 "0494 Unable to allocate memory for "
7776 "issuing SLI_FUNCTION_RESET mailbox "
7781 /* Setup PCI function reset mailbox-ioctl command */
7782 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7783 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
7784 LPFC_SLI4_MBX_EMBED);
7785 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7786 shdr = (union lpfc_sli4_cfg_shdr *)
7787 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7788 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7789 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7791 if (rc != MBX_TIMEOUT)
7792 mempool_free(mboxq, phba->mbox_mem_pool);
7793 if (shdr_status || shdr_add_status || rc) {
7794 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7795 "0495 SLI_FUNCTION_RESET mailbox "
7796 "failed with status x%x add_status x%x,"
7797 " mbx status x%x\n",
7798 shdr_status, shdr_add_status, rc);
7802 case LPFC_SLI_INTF_IF_TYPE_2:
7803 for (num_resets = 0;
7804 num_resets < MAX_IF_TYPE_2_RESETS;
7807 bf_set(lpfc_sliport_ctrl_end, ®_data,
7808 LPFC_SLIPORT_LITTLE_ENDIAN);
7809 bf_set(lpfc_sliport_ctrl_ip, ®_data,
7810 LPFC_SLIPORT_INIT_PORT);
7811 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
7814 pci_read_config_word(phba->pcidev,
7815 PCI_DEVICE_ID, &devid);
7817 * Poll the Port Status Register and wait for RDY for
7818 * up to 10 seconds. If the port doesn't respond, treat
7819 * it as an error. If the port responds with RN, start
7822 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
7824 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7825 STATUSregaddr, ®_data.word0)) {
7829 if (bf_get(lpfc_sliport_status_rn, ®_data))
7831 if (bf_get(lpfc_sliport_status_rdy, ®_data))
7836 * If the port responds to the init request with
7837 * reset needed, delay for a bit and restart the loop.
7839 if (reset_again && (rdy_chk < 1000)) {
7845 /* Detect any port errors. */
7846 if ((bf_get(lpfc_sliport_status_err, ®_data)) ||
7847 (rdy_chk >= 1000)) {
7848 phba->work_status[0] = readl(
7849 phba->sli4_hba.u.if_type2.ERR1regaddr);
7850 phba->work_status[1] = readl(
7851 phba->sli4_hba.u.if_type2.ERR2regaddr);
7852 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7853 "2890 Port error detected during port "
7854 "reset(%d): wait_tmo:%d ms, "
7855 "port status reg 0x%x, "
7856 "error 1=0x%x, error 2=0x%x\n",
7857 num_resets, rdy_chk*10,
7859 phba->work_status[0],
7860 phba->work_status[1]);
7865 * Terminate the outer loop provided the Port indicated
7866 * ready within 10 seconds.
7871 /* delay driver action following IF_TYPE_2 function reset */
7874 case LPFC_SLI_INTF_IF_TYPE_1:
7880 /* Catch the not-ready port failure after a port reset. */
7881 if (num_resets >= MAX_IF_TYPE_2_RESETS) {
7882 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7883 "3317 HBA not functional: IP Reset Failed "
7884 "after (%d) retries, try: "
7885 "echo fw_reset > board_mode\n", num_resets);
7893 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7894 * @phba: pointer to lpfc hba data structure.
7896 * This routine is invoked to set up the PCI device memory space for device
7897 * with SLI-4 interface spec.
7901 * other values - error
7904 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
7906 struct pci_dev *pdev;
7907 unsigned long bar0map_len, bar1map_len, bar2map_len;
7908 int error = -ENODEV;
7911 /* Obtain PCI device reference */
7915 pdev = phba->pcidev;
7917 /* Set the device DMA mask size */
7918 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7919 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7920 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7921 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
7927 * The BARs and register set definitions and offset locations are
7928 * dependent on the if_type.
7930 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7931 &phba->sli4_hba.sli_intf.word0)) {
7935 /* There is no SLI3 failback for SLI4 devices. */
7936 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7937 LPFC_SLI_INTF_VALID) {
7938 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7939 "2894 SLI_INTF reg contents invalid "
7940 "sli_intf reg 0x%x\n",
7941 phba->sli4_hba.sli_intf.word0);
7945 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7947 * Get the bus address of SLI4 device Bar regions and the
7948 * number of bytes required by each mapping. The mapping of the
7949 * particular PCI BARs regions is dependent on the type of
7952 if (pci_resource_start(pdev, 0)) {
7953 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7954 bar0map_len = pci_resource_len(pdev, 0);
7957 * Map SLI4 PCI Config Space Register base to a kernel virtual
7960 phba->sli4_hba.conf_regs_memmap_p =
7961 ioremap(phba->pci_bar0_map, bar0map_len);
7962 if (!phba->sli4_hba.conf_regs_memmap_p) {
7963 dev_printk(KERN_ERR, &pdev->dev,
7964 "ioremap failed for SLI4 PCI config "
7968 /* Set up BAR0 PCI config space register memory map */
7969 lpfc_sli4_bar0_register_memmap(phba, if_type);
7971 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7972 bar0map_len = pci_resource_len(pdev, 1);
7973 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7974 dev_printk(KERN_ERR, &pdev->dev,
7975 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7978 phba->sli4_hba.conf_regs_memmap_p =
7979 ioremap(phba->pci_bar0_map, bar0map_len);
7980 if (!phba->sli4_hba.conf_regs_memmap_p) {
7981 dev_printk(KERN_ERR, &pdev->dev,
7982 "ioremap failed for SLI4 PCI config "
7986 lpfc_sli4_bar0_register_memmap(phba, if_type);
7989 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7990 (pci_resource_start(pdev, 2))) {
7992 * Map SLI4 if type 0 HBA Control Register base to a kernel
7993 * virtual address and setup the registers.
7995 phba->pci_bar1_map = pci_resource_start(pdev, 2);
7996 bar1map_len = pci_resource_len(pdev, 2);
7997 phba->sli4_hba.ctrl_regs_memmap_p =
7998 ioremap(phba->pci_bar1_map, bar1map_len);
7999 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
8000 dev_printk(KERN_ERR, &pdev->dev,
8001 "ioremap failed for SLI4 HBA control registers.\n");
8002 goto out_iounmap_conf;
8004 lpfc_sli4_bar1_register_memmap(phba);
8007 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8008 (pci_resource_start(pdev, 4))) {
8010 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
8011 * virtual address and setup the registers.
8013 phba->pci_bar2_map = pci_resource_start(pdev, 4);
8014 bar2map_len = pci_resource_len(pdev, 4);
8015 phba->sli4_hba.drbl_regs_memmap_p =
8016 ioremap(phba->pci_bar2_map, bar2map_len);
8017 if (!phba->sli4_hba.drbl_regs_memmap_p) {
8018 dev_printk(KERN_ERR, &pdev->dev,
8019 "ioremap failed for SLI4 HBA doorbell registers.\n");
8020 goto out_iounmap_ctrl;
8022 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
8024 goto out_iounmap_all;
8030 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8032 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8034 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8040 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
8041 * @phba: pointer to lpfc hba data structure.
8043 * This routine is invoked to unset the PCI device memory space for device
8044 * with SLI-4 interface spec.
8047 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
8050 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8053 case LPFC_SLI_INTF_IF_TYPE_0:
8054 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8055 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8056 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8058 case LPFC_SLI_INTF_IF_TYPE_2:
8059 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8061 case LPFC_SLI_INTF_IF_TYPE_1:
8063 dev_printk(KERN_ERR, &phba->pcidev->dev,
8064 "FATAL - unsupported SLI4 interface type - %d\n",
8071 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
8072 * @phba: pointer to lpfc hba data structure.
8074 * This routine is invoked to enable the MSI-X interrupt vectors to device
8075 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
8076 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
8077 * invoked, enables either all or nothing, depending on the current
8078 * availability of PCI vector resources. The device driver is responsible
8079 * for calling the individual request_irq() to register each MSI-X vector
8080 * with a interrupt handler, which is done in this function. Note that
8081 * later when device is unloading, the driver should always call free_irq()
8082 * on all MSI-X vectors it has done request_irq() on before calling
8083 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8084 * will be left with MSI-X enabled and leaks its vectors.
8088 * other values - error
8091 lpfc_sli_enable_msix(struct lpfc_hba *phba)
8096 /* Set up MSI-X multi-message vectors */
8097 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8098 phba->msix_entries[i].entry = i;
8100 /* Configure MSI-X capability structure */
8101 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
8102 ARRAY_SIZE(phba->msix_entries));
8104 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8105 "0420 PCI enable MSI-X failed (%d)\n", rc);
8108 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8109 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8110 "0477 MSI-X entry[%d]: vector=x%x "
8112 phba->msix_entries[i].vector,
8113 phba->msix_entries[i].entry);
8115 * Assign MSI-X vectors to interrupt handlers
8118 /* vector-0 is associated to slow-path handler */
8119 rc = request_irq(phba->msix_entries[0].vector,
8120 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
8121 LPFC_SP_DRIVER_HANDLER_NAME, phba);
8123 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8124 "0421 MSI-X slow-path request_irq failed "
8129 /* vector-1 is associated to fast-path handler */
8130 rc = request_irq(phba->msix_entries[1].vector,
8131 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
8132 LPFC_FP_DRIVER_HANDLER_NAME, phba);
8135 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8136 "0429 MSI-X fast-path request_irq failed "
8142 * Configure HBA MSI-X attention conditions to messages
8144 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8148 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8149 "0474 Unable to allocate memory for issuing "
8150 "MBOX_CONFIG_MSI command\n");
8153 rc = lpfc_config_msi(phba, pmb);
8156 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8157 if (rc != MBX_SUCCESS) {
8158 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8159 "0351 Config MSI mailbox command failed, "
8160 "mbxCmd x%x, mbxStatus x%x\n",
8161 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8165 /* Free memory allocated for mailbox command */
8166 mempool_free(pmb, phba->mbox_mem_pool);
8170 /* Free memory allocated for mailbox command */
8171 mempool_free(pmb, phba->mbox_mem_pool);
8174 /* free the irq already requested */
8175 free_irq(phba->msix_entries[1].vector, phba);
8178 /* free the irq already requested */
8179 free_irq(phba->msix_entries[0].vector, phba);
8182 /* Unconfigure MSI-X capability structure */
8183 pci_disable_msix(phba->pcidev);
8188 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8189 * @phba: pointer to lpfc hba data structure.
8191 * This routine is invoked to release the MSI-X vectors and then disable the
8192 * MSI-X interrupt mode to device with SLI-3 interface spec.
8195 lpfc_sli_disable_msix(struct lpfc_hba *phba)
8199 /* Free up MSI-X multi-message vectors */
8200 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8201 free_irq(phba->msix_entries[i].vector, phba);
8203 pci_disable_msix(phba->pcidev);
8209 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8210 * @phba: pointer to lpfc hba data structure.
8212 * This routine is invoked to enable the MSI interrupt mode to device with
8213 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8214 * enable the MSI vector. The device driver is responsible for calling the
8215 * request_irq() to register MSI vector with a interrupt the handler, which
8216 * is done in this function.
8220 * other values - error
8223 lpfc_sli_enable_msi(struct lpfc_hba *phba)
8227 rc = pci_enable_msi(phba->pcidev);
8229 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8230 "0462 PCI enable MSI mode success.\n");
8232 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8233 "0471 PCI enable MSI mode failed (%d)\n", rc);
8237 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8238 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8240 pci_disable_msi(phba->pcidev);
8241 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8242 "0478 MSI request_irq failed (%d)\n", rc);
8248 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8249 * @phba: pointer to lpfc hba data structure.
8251 * This routine is invoked to disable the MSI interrupt mode to device with
8252 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8253 * done request_irq() on before calling pci_disable_msi(). Failure to do so
8254 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8258 lpfc_sli_disable_msi(struct lpfc_hba *phba)
8260 free_irq(phba->pcidev->irq, phba);
8261 pci_disable_msi(phba->pcidev);
8266 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8267 * @phba: pointer to lpfc hba data structure.
8269 * This routine is invoked to enable device interrupt and associate driver's
8270 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8271 * spec. Depends on the interrupt mode configured to the driver, the driver
8272 * will try to fallback from the configured interrupt mode to an interrupt
8273 * mode which is supported by the platform, kernel, and device in the order
8275 * MSI-X -> MSI -> IRQ.
8279 * other values - error
8282 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8284 uint32_t intr_mode = LPFC_INTR_ERROR;
8287 if (cfg_mode == 2) {
8288 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8289 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8291 /* Now, try to enable MSI-X interrupt mode */
8292 retval = lpfc_sli_enable_msix(phba);
8294 /* Indicate initialization to MSI-X mode */
8295 phba->intr_type = MSIX;
8301 /* Fallback to MSI if MSI-X initialization failed */
8302 if (cfg_mode >= 1 && phba->intr_type == NONE) {
8303 retval = lpfc_sli_enable_msi(phba);
8305 /* Indicate initialization to MSI mode */
8306 phba->intr_type = MSI;
8311 /* Fallback to INTx if both MSI-X/MSI initalization failed */
8312 if (phba->intr_type == NONE) {
8313 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8314 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8316 /* Indicate initialization to INTx mode */
8317 phba->intr_type = INTx;
8325 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8326 * @phba: pointer to lpfc hba data structure.
8328 * This routine is invoked to disable device interrupt and disassociate the
8329 * driver's interrupt handler(s) from interrupt vector(s) to device with
8330 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8331 * release the interrupt vector(s) for the message signaled interrupt.
8334 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8336 /* Disable the currently initialized interrupt mode */
8337 if (phba->intr_type == MSIX)
8338 lpfc_sli_disable_msix(phba);
8339 else if (phba->intr_type == MSI)
8340 lpfc_sli_disable_msi(phba);
8341 else if (phba->intr_type == INTx)
8342 free_irq(phba->pcidev->irq, phba);
8344 /* Reset interrupt management states */
8345 phba->intr_type = NONE;
8346 phba->sli.slistat.sli_intr = 0;
8352 * lpfc_find_next_cpu - Find next available CPU that matches the phys_id
8353 * @phba: pointer to lpfc hba data structure.
8355 * Find next available CPU to use for IRQ to CPU affinity.
8358 lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id)
8360 struct lpfc_vector_map_info *cpup;
8363 cpup = phba->sli4_hba.cpu_map;
8364 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8365 /* CPU must be online */
8366 if (cpu_online(cpu)) {
8367 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8368 (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) &&
8369 (cpup->phys_id == phys_id)) {
8377 * If we get here, we have used ALL CPUs for the specific
8378 * phys_id. Now we need to clear out lpfc_used_cpu and start
8382 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8383 if (lpfc_used_cpu[cpu] == phys_id)
8384 lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
8387 cpup = phba->sli4_hba.cpu_map;
8388 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8389 /* CPU must be online */
8390 if (cpu_online(cpu)) {
8391 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8392 (cpup->phys_id == phys_id)) {
8398 return LPFC_VECTOR_MAP_EMPTY;
8402 * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors
8403 * @phba: pointer to lpfc hba data structure.
8404 * @vectors: number of HBA vectors
8406 * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector
8407 * affinization across multple physical CPUs (numa nodes).
8408 * In addition, this routine will assign an IO channel for each CPU
8409 * to use when issuing I/Os.
8412 lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors)
8414 int i, idx, saved_chann, used_chann, cpu, phys_id;
8415 int max_phys_id, num_io_channel, first_cpu;
8416 struct lpfc_vector_map_info *cpup;
8418 struct cpuinfo_x86 *cpuinfo;
8420 struct cpumask *mask;
8421 uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1];
8423 /* If there is no mapping, just return */
8424 if (!phba->cfg_fcp_cpu_map)
8427 /* Init cpu_map array */
8428 memset(phba->sli4_hba.cpu_map, 0xff,
8429 (sizeof(struct lpfc_vector_map_info) *
8430 phba->sli4_hba.num_present_cpu));
8435 first_cpu = LPFC_VECTOR_MAP_EMPTY;
8437 /* Update CPU map with physical id and core id of each CPU */
8438 cpup = phba->sli4_hba.cpu_map;
8439 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8441 cpuinfo = &cpu_data(cpu);
8442 cpup->phys_id = cpuinfo->phys_proc_id;
8443 cpup->core_id = cpuinfo->cpu_core_id;
8445 /* No distinction between CPUs for other platforms */
8450 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8451 "3328 CPU physid %d coreid %d\n",
8452 cpup->phys_id, cpup->core_id);
8454 if (cpup->phys_id > max_phys_id)
8455 max_phys_id = cpup->phys_id;
8459 /* Now associate the HBA vectors with specific CPUs */
8460 for (idx = 0; idx < vectors; idx++) {
8461 cpup = phba->sli4_hba.cpu_map;
8462 cpu = lpfc_find_next_cpu(phba, phys_id);
8463 if (cpu == LPFC_VECTOR_MAP_EMPTY) {
8465 /* Try for all phys_id's */
8466 for (i = 1; i < max_phys_id; i++) {
8468 if (phys_id > max_phys_id)
8470 cpu = lpfc_find_next_cpu(phba, phys_id);
8471 if (cpu == LPFC_VECTOR_MAP_EMPTY)
8476 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8477 "3329 Cannot set affinity:"
8478 "Error mapping vector %d (%d)\n",
8484 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP)
8485 lpfc_used_cpu[cpu] = phys_id;
8487 /* Associate vector with selected CPU */
8488 cpup->irq = phba->sli4_hba.msix_entries[idx].vector;
8490 /* Associate IO channel with selected CPU */
8491 cpup->channel_id = idx;
8494 if (first_cpu == LPFC_VECTOR_MAP_EMPTY)
8497 /* Now affinitize to the selected CPU */
8498 mask = &cpup->maskbits;
8499 cpumask_clear(mask);
8500 cpumask_set_cpu(cpu, mask);
8501 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx].
8504 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8505 "3330 Set Affinity: CPU %d channel %d "
8507 cpu, cpup->channel_id,
8508 phba->sli4_hba.msix_entries[idx].vector, i);
8510 /* Spread vector mapping across multple physical CPU nodes */
8512 if (phys_id > max_phys_id)
8517 * Finally fill in the IO channel for any remaining CPUs.
8518 * At this point, all IO channels have been assigned to a specific
8519 * MSIx vector, mapped to a specific CPU.
8520 * Base the remaining IO channel assigned, to IO channels already
8521 * assigned to other CPUs on the same phys_id.
8523 for (i = 0; i <= max_phys_id; i++) {
8525 * If there are no io channels already mapped to
8526 * this phys_id, just round robin thru the io_channels.
8527 * Setup chann[] for round robin.
8529 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8536 * First build a list of IO channels already assigned
8537 * to this phys_id before reassigning the same IO
8538 * channels to the remaining CPUs.
8540 cpup = phba->sli4_hba.cpu_map;
8543 for (idx = 0; idx < phba->sli4_hba.num_present_cpu;
8545 if (cpup->phys_id == i) {
8547 * Save any IO channels that are
8548 * already mapped to this phys_id.
8550 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
8551 chann[saved_chann] =
8557 /* See if we are using round-robin */
8558 if (saved_chann == 0)
8560 phba->cfg_fcp_io_channel;
8562 /* Associate next IO channel with CPU */
8563 cpup->channel_id = chann[used_chann];
8566 if (used_chann == saved_chann)
8569 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8570 "3331 Set IO_CHANN "
8571 "CPU %d channel %d\n",
8572 idx, cpup->channel_id);
8576 if (cpu >= phba->sli4_hba.num_present_cpu) {
8577 cpup = phba->sli4_hba.cpu_map;
8585 if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) {
8586 cpup = phba->sli4_hba.cpu_map;
8587 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) {
8588 if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) {
8589 cpup->channel_id = 0;
8592 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8593 "3332 Assign IO_CHANN "
8594 "CPU %d channel %d\n",
8595 idx, cpup->channel_id);
8602 if (num_io_channel != phba->sli4_hba.num_present_cpu)
8603 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8604 "3333 Set affinity mismatch:"
8605 "%d chann != %d cpus: %d vactors\n",
8606 num_io_channel, phba->sli4_hba.num_present_cpu,
8609 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU;
8615 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8616 * @phba: pointer to lpfc hba data structure.
8618 * This routine is invoked to enable the MSI-X interrupt vectors to device
8619 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
8620 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
8621 * enables either all or nothing, depending on the current availability of
8622 * PCI vector resources. The device driver is responsible for calling the
8623 * individual request_irq() to register each MSI-X vector with a interrupt
8624 * handler, which is done in this function. Note that later when device is
8625 * unloading, the driver should always call free_irq() on all MSI-X vectors
8626 * it has done request_irq() on before calling pci_disable_msix(). Failure
8627 * to do so results in a BUG_ON() and a device will be left with MSI-X
8628 * enabled and leaks its vectors.
8632 * other values - error
8635 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8637 int vectors, rc, index;
8639 /* Set up MSI-X multi-message vectors */
8640 for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8641 phba->sli4_hba.msix_entries[index].entry = index;
8643 /* Configure MSI-X capability structure */
8644 vectors = phba->cfg_fcp_io_channel;
8645 enable_msix_vectors:
8646 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
8650 goto enable_msix_vectors;
8652 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8653 "0484 PCI enable MSI-X failed (%d)\n", rc);
8657 /* Log MSI-X vector assignment */
8658 for (index = 0; index < vectors; index++)
8659 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8660 "0489 MSI-X entry[%d]: vector=x%x "
8661 "message=%d\n", index,
8662 phba->sli4_hba.msix_entries[index].vector,
8663 phba->sli4_hba.msix_entries[index].entry);
8665 /* Assign MSI-X vectors to interrupt handlers */
8666 for (index = 0; index < vectors; index++) {
8667 memset(&phba->sli4_hba.handler_name[index], 0, 16);
8668 sprintf((char *)&phba->sli4_hba.handler_name[index],
8669 LPFC_DRIVER_HANDLER_NAME"%d", index);
8671 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8672 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8673 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
8674 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
8675 &lpfc_sli4_hba_intr_handler, IRQF_SHARED,
8676 (char *)&phba->sli4_hba.handler_name[index],
8677 &phba->sli4_hba.fcp_eq_hdl[index]);
8679 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8680 "0486 MSI-X fast-path (%d) "
8681 "request_irq failed (%d)\n", index, rc);
8686 if (vectors != phba->cfg_fcp_io_channel) {
8687 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8688 "3238 Reducing IO channels to match number of "
8689 "MSI-X vectors, requested %d got %d\n",
8690 phba->cfg_fcp_io_channel, vectors);
8691 phba->cfg_fcp_io_channel = vectors;
8694 lpfc_sli4_set_affinity(phba, vectors);
8698 /* free the irq already requested */
8699 for (--index; index >= 0; index--)
8700 free_irq(phba->sli4_hba.msix_entries[index].vector,
8701 &phba->sli4_hba.fcp_eq_hdl[index]);
8704 /* Unconfigure MSI-X capability structure */
8705 pci_disable_msix(phba->pcidev);
8710 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
8711 * @phba: pointer to lpfc hba data structure.
8713 * This routine is invoked to release the MSI-X vectors and then disable the
8714 * MSI-X interrupt mode to device with SLI-4 interface spec.
8717 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
8721 /* Free up MSI-X multi-message vectors */
8722 for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8723 free_irq(phba->sli4_hba.msix_entries[index].vector,
8724 &phba->sli4_hba.fcp_eq_hdl[index]);
8727 pci_disable_msix(phba->pcidev);
8733 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
8734 * @phba: pointer to lpfc hba data structure.
8736 * This routine is invoked to enable the MSI interrupt mode to device with
8737 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
8738 * to enable the MSI vector. The device driver is responsible for calling
8739 * the request_irq() to register MSI vector with a interrupt the handler,
8740 * which is done in this function.
8744 * other values - error
8747 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
8751 rc = pci_enable_msi(phba->pcidev);
8753 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8754 "0487 PCI enable MSI mode success.\n");
8756 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8757 "0488 PCI enable MSI mode failed (%d)\n", rc);
8761 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8762 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8764 pci_disable_msi(phba->pcidev);
8765 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8766 "0490 MSI request_irq failed (%d)\n", rc);
8770 for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
8771 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8772 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8779 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
8780 * @phba: pointer to lpfc hba data structure.
8782 * This routine is invoked to disable the MSI interrupt mode to device with
8783 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
8784 * done request_irq() on before calling pci_disable_msi(). Failure to do so
8785 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8789 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
8791 free_irq(phba->pcidev->irq, phba);
8792 pci_disable_msi(phba->pcidev);
8797 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
8798 * @phba: pointer to lpfc hba data structure.
8800 * This routine is invoked to enable device interrupt and associate driver's
8801 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
8802 * interface spec. Depends on the interrupt mode configured to the driver,
8803 * the driver will try to fallback from the configured interrupt mode to an
8804 * interrupt mode which is supported by the platform, kernel, and device in
8806 * MSI-X -> MSI -> IRQ.
8810 * other values - error
8813 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8815 uint32_t intr_mode = LPFC_INTR_ERROR;
8818 if (cfg_mode == 2) {
8819 /* Preparation before conf_msi mbox cmd */
8822 /* Now, try to enable MSI-X interrupt mode */
8823 retval = lpfc_sli4_enable_msix(phba);
8825 /* Indicate initialization to MSI-X mode */
8826 phba->intr_type = MSIX;
8832 /* Fallback to MSI if MSI-X initialization failed */
8833 if (cfg_mode >= 1 && phba->intr_type == NONE) {
8834 retval = lpfc_sli4_enable_msi(phba);
8836 /* Indicate initialization to MSI mode */
8837 phba->intr_type = MSI;
8842 /* Fallback to INTx if both MSI-X/MSI initalization failed */
8843 if (phba->intr_type == NONE) {
8844 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8845 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8847 /* Indicate initialization to INTx mode */
8848 phba->intr_type = INTx;
8850 for (index = 0; index < phba->cfg_fcp_io_channel;
8852 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8853 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8854 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
8863 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
8864 * @phba: pointer to lpfc hba data structure.
8866 * This routine is invoked to disable device interrupt and disassociate
8867 * the driver's interrupt handler(s) from interrupt vector(s) to device
8868 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
8869 * will release the interrupt vector(s) for the message signaled interrupt.
8872 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
8874 /* Disable the currently initialized interrupt mode */
8875 if (phba->intr_type == MSIX)
8876 lpfc_sli4_disable_msix(phba);
8877 else if (phba->intr_type == MSI)
8878 lpfc_sli4_disable_msi(phba);
8879 else if (phba->intr_type == INTx)
8880 free_irq(phba->pcidev->irq, phba);
8882 /* Reset interrupt management states */
8883 phba->intr_type = NONE;
8884 phba->sli.slistat.sli_intr = 0;
8890 * lpfc_unset_hba - Unset SLI3 hba device initialization
8891 * @phba: pointer to lpfc hba data structure.
8893 * This routine is invoked to unset the HBA device initialization steps to
8894 * a device with SLI-3 interface spec.
8897 lpfc_unset_hba(struct lpfc_hba *phba)
8899 struct lpfc_vport *vport = phba->pport;
8900 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8902 spin_lock_irq(shost->host_lock);
8903 vport->load_flag |= FC_UNLOADING;
8904 spin_unlock_irq(shost->host_lock);
8906 kfree(phba->vpi_bmask);
8907 kfree(phba->vpi_ids);
8909 lpfc_stop_hba_timers(phba);
8911 phba->pport->work_port_events = 0;
8913 lpfc_sli_hba_down(phba);
8915 lpfc_sli_brdrestart(phba);
8917 lpfc_sli_disable_intr(phba);
8923 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
8924 * @phba: Pointer to HBA context object.
8926 * This function is called in the SLI4 code path to wait for completion
8927 * of device's XRIs exchange busy. It will check the XRI exchange busy
8928 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
8929 * that, it will check the XRI exchange busy on outstanding FCP and ELS
8930 * I/Os every 30 seconds, log error message, and wait forever. Only when
8931 * all XRI exchange busy complete, the driver unload shall proceed with
8932 * invoking the function reset ioctl mailbox command to the CNA and the
8933 * the rest of the driver unload resource release.
8936 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
8939 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8940 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8942 while (!fcp_xri_cmpl || !els_xri_cmpl) {
8943 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
8945 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8946 "2877 FCP XRI exchange busy "
8947 "wait time: %d seconds.\n",
8950 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8951 "2878 ELS XRI exchange busy "
8952 "wait time: %d seconds.\n",
8954 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
8955 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
8957 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
8958 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
8961 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8963 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8968 * lpfc_sli4_hba_unset - Unset the fcoe hba
8969 * @phba: Pointer to HBA context object.
8971 * This function is called in the SLI4 code path to reset the HBA's FCoE
8972 * function. The caller is not required to hold any lock. This routine
8973 * issues PCI function reset mailbox command to reset the FCoE function.
8974 * At the end of the function, it calls lpfc_hba_down_post function to
8975 * free any pending commands.
8978 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
8981 LPFC_MBOXQ_t *mboxq;
8982 struct pci_dev *pdev = phba->pcidev;
8984 lpfc_stop_hba_timers(phba);
8985 phba->sli4_hba.intr_enable = 0;
8988 * Gracefully wait out the potential current outstanding asynchronous
8992 /* First, block any pending async mailbox command from posted */
8993 spin_lock_irq(&phba->hbalock);
8994 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8995 spin_unlock_irq(&phba->hbalock);
8996 /* Now, trying to wait it out if we can */
8997 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8999 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
9002 /* Forcefully release the outstanding mailbox command if timed out */
9003 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9004 spin_lock_irq(&phba->hbalock);
9005 mboxq = phba->sli.mbox_active;
9006 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
9007 __lpfc_mbox_cmpl_put(phba, mboxq);
9008 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9009 phba->sli.mbox_active = NULL;
9010 spin_unlock_irq(&phba->hbalock);
9013 /* Abort all iocbs associated with the hba */
9014 lpfc_sli_hba_iocb_abort(phba);
9016 /* Wait for completion of device XRI exchange busy */
9017 lpfc_sli4_xri_exchange_busy_wait(phba);
9019 /* Disable PCI subsystem interrupt */
9020 lpfc_sli4_disable_intr(phba);
9022 /* Disable SR-IOV if enabled */
9023 if (phba->cfg_sriov_nr_virtfn)
9024 pci_disable_sriov(pdev);
9026 /* Stop kthread signal shall trigger work_done one more time */
9027 kthread_stop(phba->worker_thread);
9029 /* Reset SLI4 HBA FCoE function */
9030 lpfc_pci_function_reset(phba);
9031 lpfc_sli4_queue_destroy(phba);
9033 /* Stop the SLI4 device port */
9034 phba->pport->work_port_events = 0;
9038 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
9039 * @phba: Pointer to HBA context object.
9040 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9042 * This function is called in the SLI4 code path to read the port's
9043 * sli4 capabilities.
9045 * This function may be be called from any context that can block-wait
9046 * for the completion. The expectation is that this routine is called
9047 * typically from probe_one or from the online routine.
9050 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9053 struct lpfc_mqe *mqe;
9054 struct lpfc_pc_sli4_params *sli4_params;
9058 mqe = &mboxq->u.mqe;
9060 /* Read the port's SLI4 Parameters port capabilities */
9061 lpfc_pc_sli4_params(mboxq);
9062 if (!phba->sli4_hba.intr_enable)
9063 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9065 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9066 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9072 sli4_params = &phba->sli4_hba.pc_sli4_params;
9073 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
9074 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
9075 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
9076 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
9077 &mqe->un.sli4_params);
9078 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
9079 &mqe->un.sli4_params);
9080 sli4_params->proto_types = mqe->un.sli4_params.word3;
9081 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
9082 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
9083 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
9084 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
9085 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
9086 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
9087 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
9088 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
9089 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
9090 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
9091 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
9092 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
9093 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
9094 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
9095 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
9096 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
9097 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
9098 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
9099 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
9100 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
9102 /* Make sure that sge_supp_len can be handled by the driver */
9103 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9104 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9110 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
9111 * @phba: Pointer to HBA context object.
9112 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9114 * This function is called in the SLI4 code path to read the port's
9115 * sli4 capabilities.
9117 * This function may be be called from any context that can block-wait
9118 * for the completion. The expectation is that this routine is called
9119 * typically from probe_one or from the online routine.
9122 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9125 struct lpfc_mqe *mqe = &mboxq->u.mqe;
9126 struct lpfc_pc_sli4_params *sli4_params;
9129 struct lpfc_sli4_parameters *mbx_sli4_parameters;
9132 * By default, the driver assumes the SLI4 port requires RPI
9133 * header postings. The SLI4_PARAM response will correct this
9136 phba->sli4_hba.rpi_hdrs_in_use = 1;
9138 /* Read the port's SLI4 Config Parameters */
9139 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
9140 sizeof(struct lpfc_sli4_cfg_mhdr));
9141 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9142 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
9143 length, LPFC_SLI4_MBX_EMBED);
9144 if (!phba->sli4_hba.intr_enable)
9145 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9147 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9148 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9152 sli4_params = &phba->sli4_hba.pc_sli4_params;
9153 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
9154 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
9155 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
9156 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
9157 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
9158 mbx_sli4_parameters);
9159 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
9160 mbx_sli4_parameters);
9161 if (bf_get(cfg_phwq, mbx_sli4_parameters))
9162 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
9164 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
9165 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
9166 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
9167 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
9168 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
9169 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
9170 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
9171 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
9172 mbx_sli4_parameters);
9173 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
9174 mbx_sli4_parameters);
9175 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
9176 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
9178 /* Make sure that sge_supp_len can be handled by the driver */
9179 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9180 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9186 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
9187 * @pdev: pointer to PCI device
9188 * @pid: pointer to PCI device identifier
9190 * This routine is to be called to attach a device with SLI-3 interface spec
9191 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9192 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9193 * information of the device and driver to see if the driver state that it can
9194 * support this kind of device. If the match is successful, the driver core
9195 * invokes this routine. If this routine determines it can claim the HBA, it
9196 * does all the initialization that it needs to do to handle the HBA properly.
9199 * 0 - driver can claim the device
9200 * negative value - driver can not claim the device
9203 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
9205 struct lpfc_hba *phba;
9206 struct lpfc_vport *vport = NULL;
9207 struct Scsi_Host *shost = NULL;
9209 uint32_t cfg_mode, intr_mode;
9211 /* Allocate memory for HBA structure */
9212 phba = lpfc_hba_alloc(pdev);
9216 /* Perform generic PCI device enabling operation */
9217 error = lpfc_enable_pci_dev(phba);
9221 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
9222 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
9224 goto out_disable_pci_dev;
9226 /* Set up SLI-3 specific device PCI memory space */
9227 error = lpfc_sli_pci_mem_setup(phba);
9229 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9230 "1402 Failed to set up pci memory space.\n");
9231 goto out_disable_pci_dev;
9234 /* Set up phase-1 common device driver resources */
9235 error = lpfc_setup_driver_resource_phase1(phba);
9237 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9238 "1403 Failed to set up driver resource.\n");
9239 goto out_unset_pci_mem_s3;
9242 /* Set up SLI-3 specific device driver resources */
9243 error = lpfc_sli_driver_resource_setup(phba);
9245 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9246 "1404 Failed to set up driver resource.\n");
9247 goto out_unset_pci_mem_s3;
9250 /* Initialize and populate the iocb list per host */
9251 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
9253 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9254 "1405 Failed to initialize iocb list.\n");
9255 goto out_unset_driver_resource_s3;
9258 /* Set up common device driver resources */
9259 error = lpfc_setup_driver_resource_phase2(phba);
9261 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9262 "1406 Failed to set up driver resource.\n");
9263 goto out_free_iocb_list;
9266 /* Get the default values for Model Name and Description */
9267 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9269 /* Create SCSI host to the physical port */
9270 error = lpfc_create_shost(phba);
9272 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9273 "1407 Failed to create scsi host.\n");
9274 goto out_unset_driver_resource;
9277 /* Configure sysfs attributes */
9278 vport = phba->pport;
9279 error = lpfc_alloc_sysfs_attr(vport);
9281 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9282 "1476 Failed to allocate sysfs attr\n");
9283 goto out_destroy_shost;
9286 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9287 /* Now, trying to enable interrupt and bring up the device */
9288 cfg_mode = phba->cfg_use_msi;
9290 /* Put device to a known state before enabling interrupt */
9291 lpfc_stop_port(phba);
9292 /* Configure and enable interrupt */
9293 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
9294 if (intr_mode == LPFC_INTR_ERROR) {
9295 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9296 "0431 Failed to enable interrupt.\n");
9298 goto out_free_sysfs_attr;
9300 /* SLI-3 HBA setup */
9301 if (lpfc_sli_hba_setup(phba)) {
9302 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9303 "1477 Failed to set up hba\n");
9305 goto out_remove_device;
9308 /* Wait 50ms for the interrupts of previous mailbox commands */
9310 /* Check active interrupts on message signaled interrupts */
9311 if (intr_mode == 0 ||
9312 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
9313 /* Log the current active interrupt mode */
9314 phba->intr_mode = intr_mode;
9315 lpfc_log_intr_mode(phba, intr_mode);
9318 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9319 "0447 Configure interrupt mode (%d) "
9320 "failed active interrupt test.\n",
9322 /* Disable the current interrupt mode */
9323 lpfc_sli_disable_intr(phba);
9324 /* Try next level of interrupt mode */
9325 cfg_mode = --intr_mode;
9329 /* Perform post initialization setup */
9330 lpfc_post_init_setup(phba);
9332 /* Check if there are static vports to be created. */
9333 lpfc_create_static_vport(phba);
9338 lpfc_unset_hba(phba);
9339 out_free_sysfs_attr:
9340 lpfc_free_sysfs_attr(vport);
9342 lpfc_destroy_shost(phba);
9343 out_unset_driver_resource:
9344 lpfc_unset_driver_resource_phase2(phba);
9346 lpfc_free_iocb_list(phba);
9347 out_unset_driver_resource_s3:
9348 lpfc_sli_driver_resource_unset(phba);
9349 out_unset_pci_mem_s3:
9350 lpfc_sli_pci_mem_unset(phba);
9351 out_disable_pci_dev:
9352 lpfc_disable_pci_dev(phba);
9354 scsi_host_put(shost);
9356 lpfc_hba_free(phba);
9361 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
9362 * @pdev: pointer to PCI device
9364 * This routine is to be called to disattach a device with SLI-3 interface
9365 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9366 * removed from PCI bus, it performs all the necessary cleanup for the HBA
9367 * device to be removed from the PCI subsystem properly.
9370 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
9372 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9373 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9374 struct lpfc_vport **vports;
9375 struct lpfc_hba *phba = vport->phba;
9377 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
9379 spin_lock_irq(&phba->hbalock);
9380 vport->load_flag |= FC_UNLOADING;
9381 spin_unlock_irq(&phba->hbalock);
9383 lpfc_free_sysfs_attr(vport);
9385 /* Release all the vports against this physical port */
9386 vports = lpfc_create_vport_work_array(phba);
9388 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9389 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9391 fc_vport_terminate(vports[i]->fc_vport);
9393 lpfc_destroy_vport_work_array(phba, vports);
9395 /* Remove FC host and then SCSI host with the physical port */
9396 fc_remove_host(shost);
9397 scsi_remove_host(shost);
9398 lpfc_cleanup(vport);
9401 * Bring down the SLI Layer. This step disable all interrupts,
9402 * clears the rings, discards all mailbox commands, and resets
9406 /* HBA interrupt will be disabled after this call */
9407 lpfc_sli_hba_down(phba);
9408 /* Stop kthread signal shall trigger work_done one more time */
9409 kthread_stop(phba->worker_thread);
9410 /* Final cleanup of txcmplq and reset the HBA */
9411 lpfc_sli_brdrestart(phba);
9413 kfree(phba->vpi_bmask);
9414 kfree(phba->vpi_ids);
9416 lpfc_stop_hba_timers(phba);
9417 spin_lock_irq(&phba->hbalock);
9418 list_del_init(&vport->listentry);
9419 spin_unlock_irq(&phba->hbalock);
9421 lpfc_debugfs_terminate(vport);
9423 /* Disable SR-IOV if enabled */
9424 if (phba->cfg_sriov_nr_virtfn)
9425 pci_disable_sriov(pdev);
9427 /* Disable interrupt */
9428 lpfc_sli_disable_intr(phba);
9430 pci_set_drvdata(pdev, NULL);
9431 scsi_host_put(shost);
9434 * Call scsi_free before mem_free since scsi bufs are released to their
9435 * corresponding pools here.
9437 lpfc_scsi_free(phba);
9438 lpfc_mem_free_all(phba);
9440 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9441 phba->hbqslimp.virt, phba->hbqslimp.phys);
9443 /* Free resources associated with SLI2 interface */
9444 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9445 phba->slim2p.virt, phba->slim2p.phys);
9447 /* unmap adapter SLIM and Control Registers */
9448 iounmap(phba->ctrl_regs_memmap_p);
9449 iounmap(phba->slim_memmap_p);
9451 lpfc_hba_free(phba);
9453 pci_release_selected_regions(pdev, bars);
9454 pci_disable_device(pdev);
9458 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9459 * @pdev: pointer to PCI device
9460 * @msg: power management message
9462 * This routine is to be called from the kernel's PCI subsystem to support
9463 * system Power Management (PM) to device with SLI-3 interface spec. When
9464 * PM invokes this method, it quiesces the device by stopping the driver's
9465 * worker thread for the device, turning off device's interrupt and DMA,
9466 * and bring the device offline. Note that as the driver implements the
9467 * minimum PM requirements to a power-aware driver's PM support for the
9468 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9469 * to the suspend() method call will be treated as SUSPEND and the driver will
9470 * fully reinitialize its device during resume() method call, the driver will
9471 * set device to PCI_D3hot state in PCI config space instead of setting it
9472 * according to the @msg provided by the PM.
9475 * 0 - driver suspended the device
9479 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9481 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9482 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9484 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9485 "0473 PCI device Power Management suspend.\n");
9487 /* Bring down the device */
9488 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9490 kthread_stop(phba->worker_thread);
9492 /* Disable interrupt from device */
9493 lpfc_sli_disable_intr(phba);
9495 /* Save device state to PCI config space */
9496 pci_save_state(pdev);
9497 pci_set_power_state(pdev, PCI_D3hot);
9503 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9504 * @pdev: pointer to PCI device
9506 * This routine is to be called from the kernel's PCI subsystem to support
9507 * system Power Management (PM) to device with SLI-3 interface spec. When PM
9508 * invokes this method, it restores the device's PCI config space state and
9509 * fully reinitializes the device and brings it online. Note that as the
9510 * driver implements the minimum PM requirements to a power-aware driver's
9511 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9512 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9513 * driver will fully reinitialize its device during resume() method call,
9514 * the device will be set to PCI_D0 directly in PCI config space before
9515 * restoring the state.
9518 * 0 - driver suspended the device
9522 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9524 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9525 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9529 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9530 "0452 PCI device Power Management resume.\n");
9532 /* Restore device state from PCI config space */
9533 pci_set_power_state(pdev, PCI_D0);
9534 pci_restore_state(pdev);
9537 * As the new kernel behavior of pci_restore_state() API call clears
9538 * device saved_state flag, need to save the restored state again.
9540 pci_save_state(pdev);
9542 if (pdev->is_busmaster)
9543 pci_set_master(pdev);
9545 /* Startup the kernel thread for this host adapter. */
9546 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9547 "lpfc_worker_%d", phba->brd_no);
9548 if (IS_ERR(phba->worker_thread)) {
9549 error = PTR_ERR(phba->worker_thread);
9550 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9551 "0434 PM resume failed to start worker "
9552 "thread: error=x%x.\n", error);
9556 /* Configure and enable interrupt */
9557 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9558 if (intr_mode == LPFC_INTR_ERROR) {
9559 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9560 "0430 PM resume Failed to enable interrupt\n");
9563 phba->intr_mode = intr_mode;
9565 /* Restart HBA and bring it online */
9566 lpfc_sli_brdrestart(phba);
9569 /* Log the current active interrupt mode */
9570 lpfc_log_intr_mode(phba, phba->intr_mode);
9576 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9577 * @phba: pointer to lpfc hba data structure.
9579 * This routine is called to prepare the SLI3 device for PCI slot recover. It
9580 * aborts all the outstanding SCSI I/Os to the pci device.
9583 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9585 struct lpfc_sli *psli = &phba->sli;
9586 struct lpfc_sli_ring *pring;
9588 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9589 "2723 PCI channel I/O abort preparing for recovery\n");
9592 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9593 * and let the SCSI mid-layer to retry them to recover.
9595 pring = &psli->ring[psli->fcp_ring];
9596 lpfc_sli_abort_iocb_ring(phba, pring);
9600 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9601 * @phba: pointer to lpfc hba data structure.
9603 * This routine is called to prepare the SLI3 device for PCI slot reset. It
9604 * disables the device interrupt and pci device, and aborts the internal FCP
9608 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9610 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9611 "2710 PCI channel disable preparing for reset\n");
9613 /* Block any management I/Os to the device */
9614 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
9616 /* Block all SCSI devices' I/Os on the host */
9617 lpfc_scsi_dev_block(phba);
9619 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9620 lpfc_sli_flush_fcp_rings(phba);
9622 /* stop all timers */
9623 lpfc_stop_hba_timers(phba);
9625 /* Disable interrupt and pci device */
9626 lpfc_sli_disable_intr(phba);
9627 pci_disable_device(phba->pcidev);
9631 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9632 * @phba: pointer to lpfc hba data structure.
9634 * This routine is called to prepare the SLI3 device for PCI slot permanently
9635 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9639 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9641 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9642 "2711 PCI channel permanent disable for failure\n");
9643 /* Block all SCSI devices' I/Os on the host */
9644 lpfc_scsi_dev_block(phba);
9646 /* stop all timers */
9647 lpfc_stop_hba_timers(phba);
9649 /* Clean up all driver's outstanding SCSI I/Os */
9650 lpfc_sli_flush_fcp_rings(phba);
9654 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9655 * @pdev: pointer to PCI device.
9656 * @state: the current PCI connection state.
9658 * This routine is called from the PCI subsystem for I/O error handling to
9659 * device with SLI-3 interface spec. This function is called by the PCI
9660 * subsystem after a PCI bus error affecting this device has been detected.
9661 * When this function is invoked, it will need to stop all the I/Os and
9662 * interrupt(s) to the device. Once that is done, it will return
9663 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9667 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
9668 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9669 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9671 static pci_ers_result_t
9672 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9674 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9675 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9678 case pci_channel_io_normal:
9679 /* Non-fatal error, prepare for recovery */
9680 lpfc_sli_prep_dev_for_recover(phba);
9681 return PCI_ERS_RESULT_CAN_RECOVER;
9682 case pci_channel_io_frozen:
9683 /* Fatal error, prepare for slot reset */
9684 lpfc_sli_prep_dev_for_reset(phba);
9685 return PCI_ERS_RESULT_NEED_RESET;
9686 case pci_channel_io_perm_failure:
9687 /* Permanent failure, prepare for device down */
9688 lpfc_sli_prep_dev_for_perm_failure(phba);
9689 return PCI_ERS_RESULT_DISCONNECT;
9691 /* Unknown state, prepare and request slot reset */
9692 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9693 "0472 Unknown PCI error state: x%x\n", state);
9694 lpfc_sli_prep_dev_for_reset(phba);
9695 return PCI_ERS_RESULT_NEED_RESET;
9700 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
9701 * @pdev: pointer to PCI device.
9703 * This routine is called from the PCI subsystem for error handling to
9704 * device with SLI-3 interface spec. This is called after PCI bus has been
9705 * reset to restart the PCI card from scratch, as if from a cold-boot.
9706 * During the PCI subsystem error recovery, after driver returns
9707 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9708 * recovery and then call this routine before calling the .resume method
9709 * to recover the device. This function will initialize the HBA device,
9710 * enable the interrupt, but it will just put the HBA to offline state
9711 * without passing any I/O traffic.
9714 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9715 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9717 static pci_ers_result_t
9718 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
9720 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9721 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9722 struct lpfc_sli *psli = &phba->sli;
9725 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9726 if (pci_enable_device_mem(pdev)) {
9727 printk(KERN_ERR "lpfc: Cannot re-enable "
9728 "PCI device after reset.\n");
9729 return PCI_ERS_RESULT_DISCONNECT;
9732 pci_restore_state(pdev);
9735 * As the new kernel behavior of pci_restore_state() API call clears
9736 * device saved_state flag, need to save the restored state again.
9738 pci_save_state(pdev);
9740 if (pdev->is_busmaster)
9741 pci_set_master(pdev);
9743 spin_lock_irq(&phba->hbalock);
9744 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9745 spin_unlock_irq(&phba->hbalock);
9747 /* Configure and enable interrupt */
9748 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9749 if (intr_mode == LPFC_INTR_ERROR) {
9750 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9751 "0427 Cannot re-enable interrupt after "
9753 return PCI_ERS_RESULT_DISCONNECT;
9755 phba->intr_mode = intr_mode;
9757 /* Take device offline, it will perform cleanup */
9758 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9760 lpfc_sli_brdrestart(phba);
9762 /* Log the current active interrupt mode */
9763 lpfc_log_intr_mode(phba, phba->intr_mode);
9765 return PCI_ERS_RESULT_RECOVERED;
9769 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
9770 * @pdev: pointer to PCI device
9772 * This routine is called from the PCI subsystem for error handling to device
9773 * with SLI-3 interface spec. It is called when kernel error recovery tells
9774 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9775 * error recovery. After this call, traffic can start to flow from this device
9779 lpfc_io_resume_s3(struct pci_dev *pdev)
9781 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9782 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9784 /* Bring device online, it will be no-op for non-fatal error resume */
9787 /* Clean up Advanced Error Reporting (AER) if needed */
9788 if (phba->hba_flag & HBA_AER_ENABLED)
9789 pci_cleanup_aer_uncorrect_error_status(pdev);
9793 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
9794 * @phba: pointer to lpfc hba data structure.
9796 * returns the number of ELS/CT IOCBs to reserve
9799 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
9801 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
9803 if (phba->sli_rev == LPFC_SLI_REV4) {
9806 else if (max_xri <= 256)
9808 else if (max_xri <= 512)
9810 else if (max_xri <= 1024)
9812 else if (max_xri <= 1536)
9814 else if (max_xri <= 2048)
9823 * lpfc_write_firmware - attempt to write a firmware image to the port
9824 * @fw: pointer to firmware image returned from request_firmware.
9825 * @phba: pointer to lpfc hba data structure.
9829 lpfc_write_firmware(const struct firmware *fw, void *context)
9831 struct lpfc_hba *phba = (struct lpfc_hba *)context;
9832 char fwrev[FW_REV_STR_SIZE];
9833 struct lpfc_grp_hdr *image;
9834 struct list_head dma_buffer_list;
9836 struct lpfc_dmabuf *dmabuf, *next;
9837 uint32_t offset = 0, temp_offset = 0;
9839 /* It can be null in no-wait mode, sanity check */
9844 image = (struct lpfc_grp_hdr *)fw->data;
9846 INIT_LIST_HEAD(&dma_buffer_list);
9847 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
9848 (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
9849 LPFC_FILE_TYPE_GROUP) ||
9850 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
9851 (be32_to_cpu(image->size) != fw->size)) {
9852 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9853 "3022 Invalid FW image found. "
9854 "Magic:%x Type:%x ID:%x\n",
9855 be32_to_cpu(image->magic_number),
9856 bf_get_be32(lpfc_grp_hdr_file_type, image),
9857 bf_get_be32(lpfc_grp_hdr_id, image));
9861 lpfc_decode_firmware_rev(phba, fwrev, 1);
9862 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
9863 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9864 "3023 Updating Firmware, Current Version:%s "
9866 fwrev, image->revision);
9867 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
9868 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
9874 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
9878 if (!dmabuf->virt) {
9883 list_add_tail(&dmabuf->list, &dma_buffer_list);
9885 while (offset < fw->size) {
9886 temp_offset = offset;
9887 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
9888 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
9889 memcpy(dmabuf->virt,
9890 fw->data + temp_offset,
9891 fw->size - temp_offset);
9892 temp_offset = fw->size;
9895 memcpy(dmabuf->virt, fw->data + temp_offset,
9897 temp_offset += SLI4_PAGE_SIZE;
9899 rc = lpfc_wr_object(phba, &dma_buffer_list,
9900 (fw->size - offset), &offset);
9908 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
9909 list_del(&dmabuf->list);
9910 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
9911 dmabuf->virt, dmabuf->phys);
9914 release_firmware(fw);
9916 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9917 "3024 Firmware update done: %d.\n", rc);
9922 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
9923 * @phba: pointer to lpfc hba data structure.
9925 * This routine is called to perform Linux generic firmware upgrade on device
9926 * that supports such feature.
9929 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
9931 uint8_t file_name[ELX_MODEL_NAME_SIZE];
9933 const struct firmware *fw;
9935 /* Only supported on SLI4 interface type 2 for now */
9936 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
9937 LPFC_SLI_INTF_IF_TYPE_2)
9940 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
9942 if (fw_upgrade == INT_FW_UPGRADE) {
9943 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
9944 file_name, &phba->pcidev->dev,
9945 GFP_KERNEL, (void *)phba,
9946 lpfc_write_firmware);
9947 } else if (fw_upgrade == RUN_FW_UPGRADE) {
9948 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
9950 lpfc_write_firmware(fw, (void *)phba);
9959 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
9960 * @pdev: pointer to PCI device
9961 * @pid: pointer to PCI device identifier
9963 * This routine is called from the kernel's PCI subsystem to device with
9964 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9965 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9966 * information of the device and driver to see if the driver state that it
9967 * can support this kind of device. If the match is successful, the driver
9968 * core invokes this routine. If this routine determines it can claim the HBA,
9969 * it does all the initialization that it needs to do to handle the HBA
9973 * 0 - driver can claim the device
9974 * negative value - driver can not claim the device
9977 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
9979 struct lpfc_hba *phba;
9980 struct lpfc_vport *vport = NULL;
9981 struct Scsi_Host *shost = NULL;
9983 uint32_t cfg_mode, intr_mode;
9984 int adjusted_fcp_io_channel;
9986 /* Allocate memory for HBA structure */
9987 phba = lpfc_hba_alloc(pdev);
9991 /* Perform generic PCI device enabling operation */
9992 error = lpfc_enable_pci_dev(phba);
9996 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
9997 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
9999 goto out_disable_pci_dev;
10001 /* Set up SLI-4 specific device PCI memory space */
10002 error = lpfc_sli4_pci_mem_setup(phba);
10004 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10005 "1410 Failed to set up pci memory space.\n");
10006 goto out_disable_pci_dev;
10009 /* Set up phase-1 common device driver resources */
10010 error = lpfc_setup_driver_resource_phase1(phba);
10012 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10013 "1411 Failed to set up driver resource.\n");
10014 goto out_unset_pci_mem_s4;
10017 /* Set up SLI-4 Specific device driver resources */
10018 error = lpfc_sli4_driver_resource_setup(phba);
10020 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10021 "1412 Failed to set up driver resource.\n");
10022 goto out_unset_pci_mem_s4;
10025 /* Initialize and populate the iocb list per host */
10027 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10028 "2821 initialize iocb list %d.\n",
10029 phba->cfg_iocb_cnt*1024);
10030 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
10033 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10034 "1413 Failed to initialize iocb list.\n");
10035 goto out_unset_driver_resource_s4;
10038 INIT_LIST_HEAD(&phba->active_rrq_list);
10039 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
10041 /* Set up common device driver resources */
10042 error = lpfc_setup_driver_resource_phase2(phba);
10044 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10045 "1414 Failed to set up driver resource.\n");
10046 goto out_free_iocb_list;
10049 /* Get the default values for Model Name and Description */
10050 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10052 /* Create SCSI host to the physical port */
10053 error = lpfc_create_shost(phba);
10055 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10056 "1415 Failed to create scsi host.\n");
10057 goto out_unset_driver_resource;
10060 /* Configure sysfs attributes */
10061 vport = phba->pport;
10062 error = lpfc_alloc_sysfs_attr(vport);
10064 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10065 "1416 Failed to allocate sysfs attr\n");
10066 goto out_destroy_shost;
10069 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10070 /* Now, trying to enable interrupt and bring up the device */
10071 cfg_mode = phba->cfg_use_msi;
10073 /* Put device to a known state before enabling interrupt */
10074 lpfc_stop_port(phba);
10075 /* Configure and enable interrupt */
10076 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
10077 if (intr_mode == LPFC_INTR_ERROR) {
10078 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10079 "0426 Failed to enable interrupt.\n");
10081 goto out_free_sysfs_attr;
10083 /* Default to single EQ for non-MSI-X */
10084 if (phba->intr_type != MSIX)
10085 adjusted_fcp_io_channel = 1;
10087 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
10088 phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
10089 /* Set up SLI-4 HBA */
10090 if (lpfc_sli4_hba_setup(phba)) {
10091 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10092 "1421 Failed to set up hba\n");
10094 goto out_disable_intr;
10097 /* Log the current active interrupt mode */
10098 phba->intr_mode = intr_mode;
10099 lpfc_log_intr_mode(phba, intr_mode);
10101 /* Perform post initialization setup */
10102 lpfc_post_init_setup(phba);
10104 /* check for firmware upgrade or downgrade */
10105 if (phba->cfg_request_firmware_upgrade)
10106 ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
10108 /* Check if there are static vports to be created. */
10109 lpfc_create_static_vport(phba);
10113 lpfc_sli4_disable_intr(phba);
10114 out_free_sysfs_attr:
10115 lpfc_free_sysfs_attr(vport);
10117 lpfc_destroy_shost(phba);
10118 out_unset_driver_resource:
10119 lpfc_unset_driver_resource_phase2(phba);
10120 out_free_iocb_list:
10121 lpfc_free_iocb_list(phba);
10122 out_unset_driver_resource_s4:
10123 lpfc_sli4_driver_resource_unset(phba);
10124 out_unset_pci_mem_s4:
10125 lpfc_sli4_pci_mem_unset(phba);
10126 out_disable_pci_dev:
10127 lpfc_disable_pci_dev(phba);
10129 scsi_host_put(shost);
10131 lpfc_hba_free(phba);
10136 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
10137 * @pdev: pointer to PCI device
10139 * This routine is called from the kernel's PCI subsystem to device with
10140 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10141 * removed from PCI bus, it performs all the necessary cleanup for the HBA
10142 * device to be removed from the PCI subsystem properly.
10145 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
10147 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10148 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10149 struct lpfc_vport **vports;
10150 struct lpfc_hba *phba = vport->phba;
10153 /* Mark the device unloading flag */
10154 spin_lock_irq(&phba->hbalock);
10155 vport->load_flag |= FC_UNLOADING;
10156 spin_unlock_irq(&phba->hbalock);
10158 /* Free the HBA sysfs attributes */
10159 lpfc_free_sysfs_attr(vport);
10161 /* Release all the vports against this physical port */
10162 vports = lpfc_create_vport_work_array(phba);
10163 if (vports != NULL)
10164 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10165 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10167 fc_vport_terminate(vports[i]->fc_vport);
10169 lpfc_destroy_vport_work_array(phba, vports);
10171 /* Remove FC host and then SCSI host with the physical port */
10172 fc_remove_host(shost);
10173 scsi_remove_host(shost);
10175 /* Perform cleanup on the physical port */
10176 lpfc_cleanup(vport);
10179 * Bring down the SLI Layer. This step disables all interrupts,
10180 * clears the rings, discards all mailbox commands, and resets
10181 * the HBA FCoE function.
10183 lpfc_debugfs_terminate(vport);
10184 lpfc_sli4_hba_unset(phba);
10186 spin_lock_irq(&phba->hbalock);
10187 list_del_init(&vport->listentry);
10188 spin_unlock_irq(&phba->hbalock);
10190 /* Perform scsi free before driver resource_unset since scsi
10191 * buffers are released to their corresponding pools here.
10193 lpfc_scsi_free(phba);
10195 lpfc_sli4_driver_resource_unset(phba);
10197 /* Unmap adapter Control and Doorbell registers */
10198 lpfc_sli4_pci_mem_unset(phba);
10200 /* Release PCI resources and disable device's PCI function */
10201 scsi_host_put(shost);
10202 lpfc_disable_pci_dev(phba);
10204 /* Finally, free the driver's device data structure */
10205 lpfc_hba_free(phba);
10211 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
10212 * @pdev: pointer to PCI device
10213 * @msg: power management message
10215 * This routine is called from the kernel's PCI subsystem to support system
10216 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
10217 * this method, it quiesces the device by stopping the driver's worker
10218 * thread for the device, turning off device's interrupt and DMA, and bring
10219 * the device offline. Note that as the driver implements the minimum PM
10220 * requirements to a power-aware driver's PM support for suspend/resume -- all
10221 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
10222 * method call will be treated as SUSPEND and the driver will fully
10223 * reinitialize its device during resume() method call, the driver will set
10224 * device to PCI_D3hot state in PCI config space instead of setting it
10225 * according to the @msg provided by the PM.
10228 * 0 - driver suspended the device
10232 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
10234 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10235 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10237 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10238 "2843 PCI device Power Management suspend.\n");
10240 /* Bring down the device */
10241 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10242 lpfc_offline(phba);
10243 kthread_stop(phba->worker_thread);
10245 /* Disable interrupt from device */
10246 lpfc_sli4_disable_intr(phba);
10247 lpfc_sli4_queue_destroy(phba);
10249 /* Save device state to PCI config space */
10250 pci_save_state(pdev);
10251 pci_set_power_state(pdev, PCI_D3hot);
10257 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
10258 * @pdev: pointer to PCI device
10260 * This routine is called from the kernel's PCI subsystem to support system
10261 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
10262 * this method, it restores the device's PCI config space state and fully
10263 * reinitializes the device and brings it online. Note that as the driver
10264 * implements the minimum PM requirements to a power-aware driver's PM for
10265 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10266 * to the suspend() method call will be treated as SUSPEND and the driver
10267 * will fully reinitialize its device during resume() method call, the device
10268 * will be set to PCI_D0 directly in PCI config space before restoring the
10272 * 0 - driver suspended the device
10276 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
10278 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10279 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10280 uint32_t intr_mode;
10283 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10284 "0292 PCI device Power Management resume.\n");
10286 /* Restore device state from PCI config space */
10287 pci_set_power_state(pdev, PCI_D0);
10288 pci_restore_state(pdev);
10291 * As the new kernel behavior of pci_restore_state() API call clears
10292 * device saved_state flag, need to save the restored state again.
10294 pci_save_state(pdev);
10296 if (pdev->is_busmaster)
10297 pci_set_master(pdev);
10299 /* Startup the kernel thread for this host adapter. */
10300 phba->worker_thread = kthread_run(lpfc_do_work, phba,
10301 "lpfc_worker_%d", phba->brd_no);
10302 if (IS_ERR(phba->worker_thread)) {
10303 error = PTR_ERR(phba->worker_thread);
10304 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10305 "0293 PM resume failed to start worker "
10306 "thread: error=x%x.\n", error);
10310 /* Configure and enable interrupt */
10311 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10312 if (intr_mode == LPFC_INTR_ERROR) {
10313 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10314 "0294 PM resume Failed to enable interrupt\n");
10317 phba->intr_mode = intr_mode;
10319 /* Restart HBA and bring it online */
10320 lpfc_sli_brdrestart(phba);
10323 /* Log the current active interrupt mode */
10324 lpfc_log_intr_mode(phba, phba->intr_mode);
10330 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
10331 * @phba: pointer to lpfc hba data structure.
10333 * This routine is called to prepare the SLI4 device for PCI slot recover. It
10334 * aborts all the outstanding SCSI I/Os to the pci device.
10337 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
10339 struct lpfc_sli *psli = &phba->sli;
10340 struct lpfc_sli_ring *pring;
10342 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10343 "2828 PCI channel I/O abort preparing for recovery\n");
10345 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10346 * and let the SCSI mid-layer to retry them to recover.
10348 pring = &psli->ring[psli->fcp_ring];
10349 lpfc_sli_abort_iocb_ring(phba, pring);
10353 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
10354 * @phba: pointer to lpfc hba data structure.
10356 * This routine is called to prepare the SLI4 device for PCI slot reset. It
10357 * disables the device interrupt and pci device, and aborts the internal FCP
10361 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
10363 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10364 "2826 PCI channel disable preparing for reset\n");
10366 /* Block any management I/Os to the device */
10367 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
10369 /* Block all SCSI devices' I/Os on the host */
10370 lpfc_scsi_dev_block(phba);
10372 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10373 lpfc_sli_flush_fcp_rings(phba);
10375 /* stop all timers */
10376 lpfc_stop_hba_timers(phba);
10378 /* Disable interrupt and pci device */
10379 lpfc_sli4_disable_intr(phba);
10380 lpfc_sli4_queue_destroy(phba);
10381 pci_disable_device(phba->pcidev);
10385 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10386 * @phba: pointer to lpfc hba data structure.
10388 * This routine is called to prepare the SLI4 device for PCI slot permanently
10389 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10393 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10395 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10396 "2827 PCI channel permanent disable for failure\n");
10398 /* Block all SCSI devices' I/Os on the host */
10399 lpfc_scsi_dev_block(phba);
10401 /* stop all timers */
10402 lpfc_stop_hba_timers(phba);
10404 /* Clean up all driver's outstanding SCSI I/Os */
10405 lpfc_sli_flush_fcp_rings(phba);
10409 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10410 * @pdev: pointer to PCI device.
10411 * @state: the current PCI connection state.
10413 * This routine is called from the PCI subsystem for error handling to device
10414 * with SLI-4 interface spec. This function is called by the PCI subsystem
10415 * after a PCI bus error affecting this device has been detected. When this
10416 * function is invoked, it will need to stop all the I/Os and interrupt(s)
10417 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10418 * for the PCI subsystem to perform proper recovery as desired.
10421 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10422 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10424 static pci_ers_result_t
10425 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10427 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10428 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10431 case pci_channel_io_normal:
10432 /* Non-fatal error, prepare for recovery */
10433 lpfc_sli4_prep_dev_for_recover(phba);
10434 return PCI_ERS_RESULT_CAN_RECOVER;
10435 case pci_channel_io_frozen:
10436 /* Fatal error, prepare for slot reset */
10437 lpfc_sli4_prep_dev_for_reset(phba);
10438 return PCI_ERS_RESULT_NEED_RESET;
10439 case pci_channel_io_perm_failure:
10440 /* Permanent failure, prepare for device down */
10441 lpfc_sli4_prep_dev_for_perm_failure(phba);
10442 return PCI_ERS_RESULT_DISCONNECT;
10444 /* Unknown state, prepare and request slot reset */
10445 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10446 "2825 Unknown PCI error state: x%x\n", state);
10447 lpfc_sli4_prep_dev_for_reset(phba);
10448 return PCI_ERS_RESULT_NEED_RESET;
10453 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10454 * @pdev: pointer to PCI device.
10456 * This routine is called from the PCI subsystem for error handling to device
10457 * with SLI-4 interface spec. It is called after PCI bus has been reset to
10458 * restart the PCI card from scratch, as if from a cold-boot. During the
10459 * PCI subsystem error recovery, after the driver returns
10460 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10461 * recovery and then call this routine before calling the .resume method to
10462 * recover the device. This function will initialize the HBA device, enable
10463 * the interrupt, but it will just put the HBA to offline state without
10464 * passing any I/O traffic.
10467 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10468 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10470 static pci_ers_result_t
10471 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10473 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10474 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10475 struct lpfc_sli *psli = &phba->sli;
10476 uint32_t intr_mode;
10478 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10479 if (pci_enable_device_mem(pdev)) {
10480 printk(KERN_ERR "lpfc: Cannot re-enable "
10481 "PCI device after reset.\n");
10482 return PCI_ERS_RESULT_DISCONNECT;
10485 pci_restore_state(pdev);
10488 * As the new kernel behavior of pci_restore_state() API call clears
10489 * device saved_state flag, need to save the restored state again.
10491 pci_save_state(pdev);
10493 if (pdev->is_busmaster)
10494 pci_set_master(pdev);
10496 spin_lock_irq(&phba->hbalock);
10497 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10498 spin_unlock_irq(&phba->hbalock);
10500 /* Configure and enable interrupt */
10501 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10502 if (intr_mode == LPFC_INTR_ERROR) {
10503 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10504 "2824 Cannot re-enable interrupt after "
10506 return PCI_ERS_RESULT_DISCONNECT;
10508 phba->intr_mode = intr_mode;
10510 /* Log the current active interrupt mode */
10511 lpfc_log_intr_mode(phba, phba->intr_mode);
10513 return PCI_ERS_RESULT_RECOVERED;
10517 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10518 * @pdev: pointer to PCI device
10520 * This routine is called from the PCI subsystem for error handling to device
10521 * with SLI-4 interface spec. It is called when kernel error recovery tells
10522 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10523 * error recovery. After this call, traffic can start to flow from this device
10527 lpfc_io_resume_s4(struct pci_dev *pdev)
10529 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10530 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10533 * In case of slot reset, as function reset is performed through
10534 * mailbox command which needs DMA to be enabled, this operation
10535 * has to be moved to the io resume phase. Taking device offline
10536 * will perform the necessary cleanup.
10538 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10539 /* Perform device reset */
10540 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10541 lpfc_offline(phba);
10542 lpfc_sli_brdrestart(phba);
10543 /* Bring the device back online */
10547 /* Clean up Advanced Error Reporting (AER) if needed */
10548 if (phba->hba_flag & HBA_AER_ENABLED)
10549 pci_cleanup_aer_uncorrect_error_status(pdev);
10553 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10554 * @pdev: pointer to PCI device
10555 * @pid: pointer to PCI device identifier
10557 * This routine is to be registered to the kernel's PCI subsystem. When an
10558 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10559 * at PCI device-specific information of the device and driver to see if the
10560 * driver state that it can support this kind of device. If the match is
10561 * successful, the driver core invokes this routine. This routine dispatches
10562 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10563 * do all the initialization that it needs to do to handle the HBA device
10567 * 0 - driver can claim the device
10568 * negative value - driver can not claim the device
10571 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10574 struct lpfc_sli_intf intf;
10576 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
10579 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
10580 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
10581 rc = lpfc_pci_probe_one_s4(pdev, pid);
10583 rc = lpfc_pci_probe_one_s3(pdev, pid);
10589 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10590 * @pdev: pointer to PCI device
10592 * This routine is to be registered to the kernel's PCI subsystem. When an
10593 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10594 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10595 * remove routine, which will perform all the necessary cleanup for the
10596 * device to be removed from the PCI subsystem properly.
10599 lpfc_pci_remove_one(struct pci_dev *pdev)
10601 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10602 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10604 switch (phba->pci_dev_grp) {
10605 case LPFC_PCI_DEV_LP:
10606 lpfc_pci_remove_one_s3(pdev);
10608 case LPFC_PCI_DEV_OC:
10609 lpfc_pci_remove_one_s4(pdev);
10612 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10613 "1424 Invalid PCI device group: 0x%x\n",
10614 phba->pci_dev_grp);
10621 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10622 * @pdev: pointer to PCI device
10623 * @msg: power management message
10625 * This routine is to be registered to the kernel's PCI subsystem to support
10626 * system Power Management (PM). When PM invokes this method, it dispatches
10627 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10628 * suspend the device.
10631 * 0 - driver suspended the device
10635 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10637 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10638 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10641 switch (phba->pci_dev_grp) {
10642 case LPFC_PCI_DEV_LP:
10643 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10645 case LPFC_PCI_DEV_OC:
10646 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10649 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10650 "1425 Invalid PCI device group: 0x%x\n",
10651 phba->pci_dev_grp);
10658 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10659 * @pdev: pointer to PCI device
10661 * This routine is to be registered to the kernel's PCI subsystem to support
10662 * system Power Management (PM). When PM invokes this method, it dispatches
10663 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10664 * resume the device.
10667 * 0 - driver suspended the device
10671 lpfc_pci_resume_one(struct pci_dev *pdev)
10673 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10674 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10677 switch (phba->pci_dev_grp) {
10678 case LPFC_PCI_DEV_LP:
10679 rc = lpfc_pci_resume_one_s3(pdev);
10681 case LPFC_PCI_DEV_OC:
10682 rc = lpfc_pci_resume_one_s4(pdev);
10685 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10686 "1426 Invalid PCI device group: 0x%x\n",
10687 phba->pci_dev_grp);
10694 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
10695 * @pdev: pointer to PCI device.
10696 * @state: the current PCI connection state.
10698 * This routine is registered to the PCI subsystem for error handling. This
10699 * function is called by the PCI subsystem after a PCI bus error affecting
10700 * this device has been detected. When this routine is invoked, it dispatches
10701 * the action to the proper SLI-3 or SLI-4 device error detected handling
10702 * routine, which will perform the proper error detected operation.
10705 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10706 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10708 static pci_ers_result_t
10709 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
10711 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10712 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10713 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10715 switch (phba->pci_dev_grp) {
10716 case LPFC_PCI_DEV_LP:
10717 rc = lpfc_io_error_detected_s3(pdev, state);
10719 case LPFC_PCI_DEV_OC:
10720 rc = lpfc_io_error_detected_s4(pdev, state);
10723 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10724 "1427 Invalid PCI device group: 0x%x\n",
10725 phba->pci_dev_grp);
10732 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
10733 * @pdev: pointer to PCI device.
10735 * This routine is registered to the PCI subsystem for error handling. This
10736 * function is called after PCI bus has been reset to restart the PCI card
10737 * from scratch, as if from a cold-boot. When this routine is invoked, it
10738 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
10739 * routine, which will perform the proper device reset.
10742 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10743 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10745 static pci_ers_result_t
10746 lpfc_io_slot_reset(struct pci_dev *pdev)
10748 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10749 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10750 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10752 switch (phba->pci_dev_grp) {
10753 case LPFC_PCI_DEV_LP:
10754 rc = lpfc_io_slot_reset_s3(pdev);
10756 case LPFC_PCI_DEV_OC:
10757 rc = lpfc_io_slot_reset_s4(pdev);
10760 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10761 "1428 Invalid PCI device group: 0x%x\n",
10762 phba->pci_dev_grp);
10769 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
10770 * @pdev: pointer to PCI device
10772 * This routine is registered to the PCI subsystem for error handling. It
10773 * is called when kernel error recovery tells the lpfc driver that it is
10774 * OK to resume normal PCI operation after PCI bus error recovery. When
10775 * this routine is invoked, it dispatches the action to the proper SLI-3
10776 * or SLI-4 device io_resume routine, which will resume the device operation.
10779 lpfc_io_resume(struct pci_dev *pdev)
10781 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10782 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10784 switch (phba->pci_dev_grp) {
10785 case LPFC_PCI_DEV_LP:
10786 lpfc_io_resume_s3(pdev);
10788 case LPFC_PCI_DEV_OC:
10789 lpfc_io_resume_s4(pdev);
10792 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10793 "1429 Invalid PCI device group: 0x%x\n",
10794 phba->pci_dev_grp);
10800 static struct pci_device_id lpfc_id_table[] = {
10801 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
10802 PCI_ANY_ID, PCI_ANY_ID, },
10803 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
10804 PCI_ANY_ID, PCI_ANY_ID, },
10805 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
10806 PCI_ANY_ID, PCI_ANY_ID, },
10807 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
10808 PCI_ANY_ID, PCI_ANY_ID, },
10809 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
10810 PCI_ANY_ID, PCI_ANY_ID, },
10811 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
10812 PCI_ANY_ID, PCI_ANY_ID, },
10813 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
10814 PCI_ANY_ID, PCI_ANY_ID, },
10815 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
10816 PCI_ANY_ID, PCI_ANY_ID, },
10817 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
10818 PCI_ANY_ID, PCI_ANY_ID, },
10819 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
10820 PCI_ANY_ID, PCI_ANY_ID, },
10821 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
10822 PCI_ANY_ID, PCI_ANY_ID, },
10823 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
10824 PCI_ANY_ID, PCI_ANY_ID, },
10825 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
10826 PCI_ANY_ID, PCI_ANY_ID, },
10827 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
10828 PCI_ANY_ID, PCI_ANY_ID, },
10829 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
10830 PCI_ANY_ID, PCI_ANY_ID, },
10831 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
10832 PCI_ANY_ID, PCI_ANY_ID, },
10833 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
10834 PCI_ANY_ID, PCI_ANY_ID, },
10835 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
10836 PCI_ANY_ID, PCI_ANY_ID, },
10837 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
10838 PCI_ANY_ID, PCI_ANY_ID, },
10839 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
10840 PCI_ANY_ID, PCI_ANY_ID, },
10841 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
10842 PCI_ANY_ID, PCI_ANY_ID, },
10843 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
10844 PCI_ANY_ID, PCI_ANY_ID, },
10845 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
10846 PCI_ANY_ID, PCI_ANY_ID, },
10847 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
10848 PCI_ANY_ID, PCI_ANY_ID, },
10849 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
10850 PCI_ANY_ID, PCI_ANY_ID, },
10851 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
10852 PCI_ANY_ID, PCI_ANY_ID, },
10853 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
10854 PCI_ANY_ID, PCI_ANY_ID, },
10855 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
10856 PCI_ANY_ID, PCI_ANY_ID, },
10857 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
10858 PCI_ANY_ID, PCI_ANY_ID, },
10859 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
10860 PCI_ANY_ID, PCI_ANY_ID, },
10861 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
10862 PCI_ANY_ID, PCI_ANY_ID, },
10863 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
10864 PCI_ANY_ID, PCI_ANY_ID, },
10865 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
10866 PCI_ANY_ID, PCI_ANY_ID, },
10867 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
10868 PCI_ANY_ID, PCI_ANY_ID, },
10869 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
10870 PCI_ANY_ID, PCI_ANY_ID, },
10871 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
10872 PCI_ANY_ID, PCI_ANY_ID, },
10873 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
10874 PCI_ANY_ID, PCI_ANY_ID, },
10875 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
10876 PCI_ANY_ID, PCI_ANY_ID, },
10877 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
10878 PCI_ANY_ID, PCI_ANY_ID, },
10879 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
10880 PCI_ANY_ID, PCI_ANY_ID, },
10881 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
10882 PCI_ANY_ID, PCI_ANY_ID, },
10883 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
10884 PCI_ANY_ID, PCI_ANY_ID, },
10885 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
10886 PCI_ANY_ID, PCI_ANY_ID, },
10887 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
10888 PCI_ANY_ID, PCI_ANY_ID, },
10889 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
10890 PCI_ANY_ID, PCI_ANY_ID, },
10891 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
10892 PCI_ANY_ID, PCI_ANY_ID, },
10893 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
10894 PCI_ANY_ID, PCI_ANY_ID, },
10898 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
10900 static const struct pci_error_handlers lpfc_err_handler = {
10901 .error_detected = lpfc_io_error_detected,
10902 .slot_reset = lpfc_io_slot_reset,
10903 .resume = lpfc_io_resume,
10906 static struct pci_driver lpfc_driver = {
10907 .name = LPFC_DRIVER_NAME,
10908 .id_table = lpfc_id_table,
10909 .probe = lpfc_pci_probe_one,
10910 .remove = lpfc_pci_remove_one,
10911 .suspend = lpfc_pci_suspend_one,
10912 .resume = lpfc_pci_resume_one,
10913 .err_handler = &lpfc_err_handler,
10916 static const struct file_operations lpfc_mgmt_fop = {
10917 .owner = THIS_MODULE,
10920 static struct miscdevice lpfc_mgmt_dev = {
10921 .minor = MISC_DYNAMIC_MINOR,
10922 .name = "lpfcmgmt",
10923 .fops = &lpfc_mgmt_fop,
10927 * lpfc_init - lpfc module initialization routine
10929 * This routine is to be invoked when the lpfc module is loaded into the
10930 * kernel. The special kernel macro module_init() is used to indicate the
10931 * role of this routine to the kernel as lpfc module entry point.
10935 * -ENOMEM - FC attach transport failed
10936 * all others - failed
10944 printk(LPFC_MODULE_DESC "\n");
10945 printk(LPFC_COPYRIGHT "\n");
10947 error = misc_register(&lpfc_mgmt_dev);
10949 printk(KERN_ERR "Could not register lpfcmgmt device, "
10950 "misc_register returned with status %d", error);
10952 if (lpfc_enable_npiv) {
10953 lpfc_transport_functions.vport_create = lpfc_vport_create;
10954 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
10956 lpfc_transport_template =
10957 fc_attach_transport(&lpfc_transport_functions);
10958 if (lpfc_transport_template == NULL)
10960 if (lpfc_enable_npiv) {
10961 lpfc_vport_transport_template =
10962 fc_attach_transport(&lpfc_vport_transport_functions);
10963 if (lpfc_vport_transport_template == NULL) {
10964 fc_release_transport(lpfc_transport_template);
10969 /* Initialize in case vector mapping is needed */
10970 for (cpu = 0; cpu < LPFC_MAX_CPU; cpu++)
10971 lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
10973 error = pci_register_driver(&lpfc_driver);
10975 fc_release_transport(lpfc_transport_template);
10976 if (lpfc_enable_npiv)
10977 fc_release_transport(lpfc_vport_transport_template);
10984 * lpfc_exit - lpfc module removal routine
10986 * This routine is invoked when the lpfc module is removed from the kernel.
10987 * The special kernel macro module_exit() is used to indicate the role of
10988 * this routine to the kernel as lpfc module exit point.
10993 misc_deregister(&lpfc_mgmt_dev);
10994 pci_unregister_driver(&lpfc_driver);
10995 fc_release_transport(lpfc_transport_template);
10996 if (lpfc_enable_npiv)
10997 fc_release_transport(lpfc_vport_transport_template);
10998 if (_dump_buf_data) {
10999 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
11000 "_dump_buf_data at 0x%p\n",
11001 (1L << _dump_buf_data_order), _dump_buf_data);
11002 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
11005 if (_dump_buf_dif) {
11006 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
11007 "_dump_buf_dif at 0x%p\n",
11008 (1L << _dump_buf_dif_order), _dump_buf_dif);
11009 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
11013 module_init(lpfc_init);
11014 module_exit(lpfc_exit);
11015 MODULE_LICENSE("GPL");
11016 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
11017 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
11018 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);