include: replace linux/module.h with "struct module" wherever possible
[linux-2.6/next.git] / drivers / scsi / lpfc / lpfc_init.c
blob6ac2895b13d088aa51c2f9cf7ddd38827bdd6e8f
1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2011 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
8 * *
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>
36 #include <scsi/scsi.h>
37 #include <scsi/scsi_device.h>
38 #include <scsi/scsi_host.h>
39 #include <scsi/scsi_transport_fc.h>
41 #include "lpfc_hw4.h"
42 #include "lpfc_hw.h"
43 #include "lpfc_sli.h"
44 #include "lpfc_sli4.h"
45 #include "lpfc_nl.h"
46 #include "lpfc_disc.h"
47 #include "lpfc_scsi.h"
48 #include "lpfc.h"
49 #include "lpfc_logmsg.h"
50 #include "lpfc_crtn.h"
51 #include "lpfc_vport.h"
52 #include "lpfc_version.h"
54 char *_dump_buf_data;
55 unsigned long _dump_buf_data_order;
56 char *_dump_buf_dif;
57 unsigned long _dump_buf_dif_order;
58 spinlock_t _dump_buf_lock;
60 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
61 static int lpfc_post_rcv_buf(struct lpfc_hba *);
62 static int lpfc_sli4_queue_create(struct lpfc_hba *);
63 static void lpfc_sli4_queue_destroy(struct lpfc_hba *);
64 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
65 static int lpfc_setup_endian_order(struct lpfc_hba *);
66 static int lpfc_sli4_read_config(struct lpfc_hba *);
67 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
68 static void lpfc_free_sgl_list(struct lpfc_hba *);
69 static int lpfc_init_sgl_list(struct lpfc_hba *);
70 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
71 static void lpfc_free_active_sgl(struct lpfc_hba *);
72 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
73 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
74 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
75 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
76 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
78 static struct scsi_transport_template *lpfc_transport_template = NULL;
79 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
80 static DEFINE_IDR(lpfc_hba_index);
82 /**
83 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
84 * @phba: pointer to lpfc hba data structure.
86 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
87 * mailbox command. It retrieves the revision information from the HBA and
88 * collects the Vital Product Data (VPD) about the HBA for preparing the
89 * configuration of the HBA.
91 * Return codes:
92 * 0 - success.
93 * -ERESTART - requests the SLI layer to reset the HBA and try again.
94 * Any other value - indicates an error.
95 **/
96 int
97 lpfc_config_port_prep(struct lpfc_hba *phba)
99 lpfc_vpd_t *vp = &phba->vpd;
100 int i = 0, rc;
101 LPFC_MBOXQ_t *pmb;
102 MAILBOX_t *mb;
103 char *lpfc_vpd_data = NULL;
104 uint16_t offset = 0;
105 static char licensed[56] =
106 "key unlock for use with gnu public licensed code only\0";
107 static int init_key = 1;
109 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
110 if (!pmb) {
111 phba->link_state = LPFC_HBA_ERROR;
112 return -ENOMEM;
115 mb = &pmb->u.mb;
116 phba->link_state = LPFC_INIT_MBX_CMDS;
118 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
119 if (init_key) {
120 uint32_t *ptext = (uint32_t *) licensed;
122 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
123 *ptext = cpu_to_be32(*ptext);
124 init_key = 0;
127 lpfc_read_nv(phba, pmb);
128 memset((char*)mb->un.varRDnvp.rsvd3, 0,
129 sizeof (mb->un.varRDnvp.rsvd3));
130 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
131 sizeof (licensed));
133 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
135 if (rc != MBX_SUCCESS) {
136 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
137 "0324 Config Port initialization "
138 "error, mbxCmd x%x READ_NVPARM, "
139 "mbxStatus x%x\n",
140 mb->mbxCommand, mb->mbxStatus);
141 mempool_free(pmb, phba->mbox_mem_pool);
142 return -ERESTART;
144 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
145 sizeof(phba->wwnn));
146 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
147 sizeof(phba->wwpn));
150 phba->sli3_options = 0x0;
152 /* Setup and issue mailbox READ REV command */
153 lpfc_read_rev(phba, pmb);
154 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
155 if (rc != MBX_SUCCESS) {
156 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
157 "0439 Adapter failed to init, mbxCmd x%x "
158 "READ_REV, mbxStatus x%x\n",
159 mb->mbxCommand, mb->mbxStatus);
160 mempool_free( pmb, phba->mbox_mem_pool);
161 return -ERESTART;
166 * The value of rr must be 1 since the driver set the cv field to 1.
167 * This setting requires the FW to set all revision fields.
169 if (mb->un.varRdRev.rr == 0) {
170 vp->rev.rBit = 0;
171 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
172 "0440 Adapter failed to init, READ_REV has "
173 "missing revision information.\n");
174 mempool_free(pmb, phba->mbox_mem_pool);
175 return -ERESTART;
178 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
179 mempool_free(pmb, phba->mbox_mem_pool);
180 return -EINVAL;
183 /* Save information as VPD data */
184 vp->rev.rBit = 1;
185 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
186 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
187 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
188 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
189 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
190 vp->rev.biuRev = mb->un.varRdRev.biuRev;
191 vp->rev.smRev = mb->un.varRdRev.smRev;
192 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
193 vp->rev.endecRev = mb->un.varRdRev.endecRev;
194 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
195 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
196 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
197 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
198 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
199 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
201 /* If the sli feature level is less then 9, we must
202 * tear down all RPIs and VPIs on link down if NPIV
203 * is enabled.
205 if (vp->rev.feaLevelHigh < 9)
206 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
208 if (lpfc_is_LC_HBA(phba->pcidev->device))
209 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
210 sizeof (phba->RandomData));
212 /* Get adapter VPD information */
213 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
214 if (!lpfc_vpd_data)
215 goto out_free_mbox;
216 do {
217 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
218 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
220 if (rc != MBX_SUCCESS) {
221 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
222 "0441 VPD not present on adapter, "
223 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
224 mb->mbxCommand, mb->mbxStatus);
225 mb->un.varDmp.word_cnt = 0;
227 /* dump mem may return a zero when finished or we got a
228 * mailbox error, either way we are done.
230 if (mb->un.varDmp.word_cnt == 0)
231 break;
232 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
233 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
234 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
235 lpfc_vpd_data + offset,
236 mb->un.varDmp.word_cnt);
237 offset += mb->un.varDmp.word_cnt;
238 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
239 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
241 kfree(lpfc_vpd_data);
242 out_free_mbox:
243 mempool_free(pmb, phba->mbox_mem_pool);
244 return 0;
248 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
249 * @phba: pointer to lpfc hba data structure.
250 * @pmboxq: pointer to the driver internal queue element for mailbox command.
252 * This is the completion handler for driver's configuring asynchronous event
253 * mailbox command to the device. If the mailbox command returns successfully,
254 * it will set internal async event support flag to 1; otherwise, it will
255 * set internal async event support flag to 0.
257 static void
258 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
260 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
261 phba->temp_sensor_support = 1;
262 else
263 phba->temp_sensor_support = 0;
264 mempool_free(pmboxq, phba->mbox_mem_pool);
265 return;
269 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
270 * @phba: pointer to lpfc hba data structure.
271 * @pmboxq: pointer to the driver internal queue element for mailbox command.
273 * This is the completion handler for dump mailbox command for getting
274 * wake up parameters. When this command complete, the response contain
275 * Option rom version of the HBA. This function translate the version number
276 * into a human readable string and store it in OptionROMVersion.
278 static void
279 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
281 struct prog_id *prg;
282 uint32_t prog_id_word;
283 char dist = ' ';
284 /* character array used for decoding dist type. */
285 char dist_char[] = "nabx";
287 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
288 mempool_free(pmboxq, phba->mbox_mem_pool);
289 return;
292 prg = (struct prog_id *) &prog_id_word;
294 /* word 7 contain option rom version */
295 prog_id_word = pmboxq->u.mb.un.varWords[7];
297 /* Decode the Option rom version word to a readable string */
298 if (prg->dist < 4)
299 dist = dist_char[prg->dist];
301 if ((prg->dist == 3) && (prg->num == 0))
302 sprintf(phba->OptionROMVersion, "%d.%d%d",
303 prg->ver, prg->rev, prg->lev);
304 else
305 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
306 prg->ver, prg->rev, prg->lev,
307 dist, prg->num);
308 mempool_free(pmboxq, phba->mbox_mem_pool);
309 return;
313 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
314 * cfg_soft_wwnn, cfg_soft_wwpn
315 * @vport: pointer to lpfc vport data structure.
318 * Return codes
319 * None.
321 void
322 lpfc_update_vport_wwn(struct lpfc_vport *vport)
324 /* If the soft name exists then update it using the service params */
325 if (vport->phba->cfg_soft_wwnn)
326 u64_to_wwn(vport->phba->cfg_soft_wwnn,
327 vport->fc_sparam.nodeName.u.wwn);
328 if (vport->phba->cfg_soft_wwpn)
329 u64_to_wwn(vport->phba->cfg_soft_wwpn,
330 vport->fc_sparam.portName.u.wwn);
333 * If the name is empty or there exists a soft name
334 * then copy the service params name, otherwise use the fc name
336 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
337 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
338 sizeof(struct lpfc_name));
339 else
340 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
341 sizeof(struct lpfc_name));
343 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
344 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
345 sizeof(struct lpfc_name));
346 else
347 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
348 sizeof(struct lpfc_name));
352 * lpfc_config_port_post - Perform lpfc initialization after config port
353 * @phba: pointer to lpfc hba data structure.
355 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
356 * command call. It performs all internal resource and state setups on the
357 * port: post IOCB buffers, enable appropriate host interrupt attentions,
358 * ELS ring timers, etc.
360 * Return codes
361 * 0 - success.
362 * Any other value - error.
365 lpfc_config_port_post(struct lpfc_hba *phba)
367 struct lpfc_vport *vport = phba->pport;
368 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
369 LPFC_MBOXQ_t *pmb;
370 MAILBOX_t *mb;
371 struct lpfc_dmabuf *mp;
372 struct lpfc_sli *psli = &phba->sli;
373 uint32_t status, timeout;
374 int i, j;
375 int rc;
377 spin_lock_irq(&phba->hbalock);
379 * If the Config port completed correctly the HBA is not
380 * over heated any more.
382 if (phba->over_temp_state == HBA_OVER_TEMP)
383 phba->over_temp_state = HBA_NORMAL_TEMP;
384 spin_unlock_irq(&phba->hbalock);
386 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
387 if (!pmb) {
388 phba->link_state = LPFC_HBA_ERROR;
389 return -ENOMEM;
391 mb = &pmb->u.mb;
393 /* Get login parameters for NID. */
394 rc = lpfc_read_sparam(phba, pmb, 0);
395 if (rc) {
396 mempool_free(pmb, phba->mbox_mem_pool);
397 return -ENOMEM;
400 pmb->vport = vport;
401 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
402 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
403 "0448 Adapter failed init, mbxCmd x%x "
404 "READ_SPARM mbxStatus x%x\n",
405 mb->mbxCommand, mb->mbxStatus);
406 phba->link_state = LPFC_HBA_ERROR;
407 mp = (struct lpfc_dmabuf *) pmb->context1;
408 mempool_free(pmb, phba->mbox_mem_pool);
409 lpfc_mbuf_free(phba, mp->virt, mp->phys);
410 kfree(mp);
411 return -EIO;
414 mp = (struct lpfc_dmabuf *) pmb->context1;
416 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
417 lpfc_mbuf_free(phba, mp->virt, mp->phys);
418 kfree(mp);
419 pmb->context1 = NULL;
420 lpfc_update_vport_wwn(vport);
422 /* Update the fc_host data structures with new wwn. */
423 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
424 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
425 fc_host_max_npiv_vports(shost) = phba->max_vpi;
427 /* If no serial number in VPD data, use low 6 bytes of WWNN */
428 /* This should be consolidated into parse_vpd ? - mr */
429 if (phba->SerialNumber[0] == 0) {
430 uint8_t *outptr;
432 outptr = &vport->fc_nodename.u.s.IEEE[0];
433 for (i = 0; i < 12; i++) {
434 status = *outptr++;
435 j = ((status & 0xf0) >> 4);
436 if (j <= 9)
437 phba->SerialNumber[i] =
438 (char)((uint8_t) 0x30 + (uint8_t) j);
439 else
440 phba->SerialNumber[i] =
441 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
442 i++;
443 j = (status & 0xf);
444 if (j <= 9)
445 phba->SerialNumber[i] =
446 (char)((uint8_t) 0x30 + (uint8_t) j);
447 else
448 phba->SerialNumber[i] =
449 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
453 lpfc_read_config(phba, pmb);
454 pmb->vport = vport;
455 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
456 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
457 "0453 Adapter failed to init, mbxCmd x%x "
458 "READ_CONFIG, mbxStatus x%x\n",
459 mb->mbxCommand, mb->mbxStatus);
460 phba->link_state = LPFC_HBA_ERROR;
461 mempool_free( pmb, phba->mbox_mem_pool);
462 return -EIO;
465 /* Check if the port is disabled */
466 lpfc_sli_read_link_ste(phba);
468 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
469 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
470 phba->cfg_hba_queue_depth =
471 (mb->un.varRdConfig.max_xri + 1) -
472 lpfc_sli4_get_els_iocb_cnt(phba);
474 phba->lmt = mb->un.varRdConfig.lmt;
476 /* Get the default values for Model Name and Description */
477 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
479 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_16G)
480 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G)
481 && !(phba->lmt & LMT_1Gb))
482 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G)
483 && !(phba->lmt & LMT_2Gb))
484 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G)
485 && !(phba->lmt & LMT_4Gb))
486 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G)
487 && !(phba->lmt & LMT_8Gb))
488 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G)
489 && !(phba->lmt & LMT_10Gb))
490 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G)
491 && !(phba->lmt & LMT_16Gb))) {
492 /* Reset link speed to auto */
493 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
494 "1302 Invalid speed for this board: "
495 "Reset link speed to auto: x%x\n",
496 phba->cfg_link_speed);
497 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
500 phba->link_state = LPFC_LINK_DOWN;
502 /* Only process IOCBs on ELS ring till hba_state is READY */
503 if (psli->ring[psli->extra_ring].cmdringaddr)
504 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
505 if (psli->ring[psli->fcp_ring].cmdringaddr)
506 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
507 if (psli->ring[psli->next_ring].cmdringaddr)
508 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
510 /* Post receive buffers for desired rings */
511 if (phba->sli_rev != 3)
512 lpfc_post_rcv_buf(phba);
515 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
517 if (phba->intr_type == MSIX) {
518 rc = lpfc_config_msi(phba, pmb);
519 if (rc) {
520 mempool_free(pmb, phba->mbox_mem_pool);
521 return -EIO;
523 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
524 if (rc != MBX_SUCCESS) {
525 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
526 "0352 Config MSI mailbox command "
527 "failed, mbxCmd x%x, mbxStatus x%x\n",
528 pmb->u.mb.mbxCommand,
529 pmb->u.mb.mbxStatus);
530 mempool_free(pmb, phba->mbox_mem_pool);
531 return -EIO;
535 spin_lock_irq(&phba->hbalock);
536 /* Initialize ERATT handling flag */
537 phba->hba_flag &= ~HBA_ERATT_HANDLED;
539 /* Enable appropriate host interrupts */
540 if (lpfc_readl(phba->HCregaddr, &status)) {
541 spin_unlock_irq(&phba->hbalock);
542 return -EIO;
544 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
545 if (psli->num_rings > 0)
546 status |= HC_R0INT_ENA;
547 if (psli->num_rings > 1)
548 status |= HC_R1INT_ENA;
549 if (psli->num_rings > 2)
550 status |= HC_R2INT_ENA;
551 if (psli->num_rings > 3)
552 status |= HC_R3INT_ENA;
554 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
555 (phba->cfg_poll & DISABLE_FCP_RING_INT))
556 status &= ~(HC_R0INT_ENA);
558 writel(status, phba->HCregaddr);
559 readl(phba->HCregaddr); /* flush */
560 spin_unlock_irq(&phba->hbalock);
562 /* Set up ring-0 (ELS) timer */
563 timeout = phba->fc_ratov * 2;
564 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
565 /* Set up heart beat (HB) timer */
566 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
567 phba->hb_outstanding = 0;
568 phba->last_completion_time = jiffies;
569 /* Set up error attention (ERATT) polling timer */
570 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
572 if (phba->hba_flag & LINK_DISABLED) {
573 lpfc_printf_log(phba,
574 KERN_ERR, LOG_INIT,
575 "2598 Adapter Link is disabled.\n");
576 lpfc_down_link(phba, pmb);
577 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
578 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
579 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
580 lpfc_printf_log(phba,
581 KERN_ERR, LOG_INIT,
582 "2599 Adapter failed to issue DOWN_LINK"
583 " mbox command rc 0x%x\n", rc);
585 mempool_free(pmb, phba->mbox_mem_pool);
586 return -EIO;
588 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
589 lpfc_init_link(phba, pmb, phba->cfg_topology,
590 phba->cfg_link_speed);
591 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
592 lpfc_set_loopback_flag(phba);
593 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
594 if (rc != MBX_SUCCESS) {
595 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
596 "0454 Adapter failed to init, mbxCmd x%x "
597 "INIT_LINK, mbxStatus x%x\n",
598 mb->mbxCommand, mb->mbxStatus);
600 /* Clear all interrupt enable conditions */
601 writel(0, phba->HCregaddr);
602 readl(phba->HCregaddr); /* flush */
603 /* Clear all pending interrupts */
604 writel(0xffffffff, phba->HAregaddr);
605 readl(phba->HAregaddr); /* flush */
606 phba->link_state = LPFC_HBA_ERROR;
607 if (rc != MBX_BUSY)
608 mempool_free(pmb, phba->mbox_mem_pool);
609 return -EIO;
612 /* MBOX buffer will be freed in mbox compl */
613 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
614 if (!pmb) {
615 phba->link_state = LPFC_HBA_ERROR;
616 return -ENOMEM;
619 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
620 pmb->mbox_cmpl = lpfc_config_async_cmpl;
621 pmb->vport = phba->pport;
622 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
624 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
625 lpfc_printf_log(phba,
626 KERN_ERR,
627 LOG_INIT,
628 "0456 Adapter failed to issue "
629 "ASYNCEVT_ENABLE mbox status x%x\n",
630 rc);
631 mempool_free(pmb, phba->mbox_mem_pool);
634 /* Get Option rom version */
635 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
636 if (!pmb) {
637 phba->link_state = LPFC_HBA_ERROR;
638 return -ENOMEM;
641 lpfc_dump_wakeup_param(phba, pmb);
642 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
643 pmb->vport = phba->pport;
644 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
646 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
647 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
648 "to get Option ROM version status x%x\n", rc);
649 mempool_free(pmb, phba->mbox_mem_pool);
652 return 0;
656 * lpfc_hba_init_link - Initialize the FC link
657 * @phba: pointer to lpfc hba data structure.
658 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
660 * This routine will issue the INIT_LINK mailbox command call.
661 * It is available to other drivers through the lpfc_hba data
662 * structure for use as a delayed link up mechanism with the
663 * module parameter lpfc_suppress_link_up.
665 * Return code
666 * 0 - success
667 * Any other value - error
670 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
672 struct lpfc_vport *vport = phba->pport;
673 LPFC_MBOXQ_t *pmb;
674 MAILBOX_t *mb;
675 int rc;
677 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
678 if (!pmb) {
679 phba->link_state = LPFC_HBA_ERROR;
680 return -ENOMEM;
682 mb = &pmb->u.mb;
683 pmb->vport = vport;
685 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
686 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
687 lpfc_set_loopback_flag(phba);
688 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
689 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
690 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
691 "0498 Adapter failed to init, mbxCmd x%x "
692 "INIT_LINK, mbxStatus x%x\n",
693 mb->mbxCommand, mb->mbxStatus);
694 if (phba->sli_rev <= LPFC_SLI_REV3) {
695 /* Clear all interrupt enable conditions */
696 writel(0, phba->HCregaddr);
697 readl(phba->HCregaddr); /* flush */
698 /* Clear all pending interrupts */
699 writel(0xffffffff, phba->HAregaddr);
700 readl(phba->HAregaddr); /* flush */
702 phba->link_state = LPFC_HBA_ERROR;
703 if (rc != MBX_BUSY || flag == MBX_POLL)
704 mempool_free(pmb, phba->mbox_mem_pool);
705 return -EIO;
707 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
708 if (flag == MBX_POLL)
709 mempool_free(pmb, phba->mbox_mem_pool);
711 return 0;
715 * lpfc_hba_down_link - this routine downs the FC link
716 * @phba: pointer to lpfc hba data structure.
717 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
719 * This routine will issue the DOWN_LINK mailbox command call.
720 * It is available to other drivers through the lpfc_hba data
721 * structure for use to stop the link.
723 * Return code
724 * 0 - success
725 * Any other value - error
728 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
730 LPFC_MBOXQ_t *pmb;
731 int rc;
733 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
734 if (!pmb) {
735 phba->link_state = LPFC_HBA_ERROR;
736 return -ENOMEM;
739 lpfc_printf_log(phba,
740 KERN_ERR, LOG_INIT,
741 "0491 Adapter Link is disabled.\n");
742 lpfc_down_link(phba, pmb);
743 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
744 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
745 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
746 lpfc_printf_log(phba,
747 KERN_ERR, LOG_INIT,
748 "2522 Adapter failed to issue DOWN_LINK"
749 " mbox command rc 0x%x\n", rc);
751 mempool_free(pmb, phba->mbox_mem_pool);
752 return -EIO;
754 if (flag == MBX_POLL)
755 mempool_free(pmb, phba->mbox_mem_pool);
757 return 0;
761 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
762 * @phba: pointer to lpfc HBA data structure.
764 * This routine will do LPFC uninitialization before the HBA is reset when
765 * bringing down the SLI Layer.
767 * Return codes
768 * 0 - success.
769 * Any other value - error.
772 lpfc_hba_down_prep(struct lpfc_hba *phba)
774 struct lpfc_vport **vports;
775 int i;
777 if (phba->sli_rev <= LPFC_SLI_REV3) {
778 /* Disable interrupts */
779 writel(0, phba->HCregaddr);
780 readl(phba->HCregaddr); /* flush */
783 if (phba->pport->load_flag & FC_UNLOADING)
784 lpfc_cleanup_discovery_resources(phba->pport);
785 else {
786 vports = lpfc_create_vport_work_array(phba);
787 if (vports != NULL)
788 for (i = 0; i <= phba->max_vports &&
789 vports[i] != NULL; i++)
790 lpfc_cleanup_discovery_resources(vports[i]);
791 lpfc_destroy_vport_work_array(phba, vports);
793 return 0;
797 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
798 * @phba: pointer to lpfc HBA data structure.
800 * This routine will do uninitialization after the HBA is reset when bring
801 * down the SLI Layer.
803 * Return codes
804 * 0 - success.
805 * Any other value - error.
807 static int
808 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
810 struct lpfc_sli *psli = &phba->sli;
811 struct lpfc_sli_ring *pring;
812 struct lpfc_dmabuf *mp, *next_mp;
813 LIST_HEAD(completions);
814 int i;
816 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
817 lpfc_sli_hbqbuf_free_all(phba);
818 else {
819 /* Cleanup preposted buffers on the ELS ring */
820 pring = &psli->ring[LPFC_ELS_RING];
821 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
822 list_del(&mp->list);
823 pring->postbufq_cnt--;
824 lpfc_mbuf_free(phba, mp->virt, mp->phys);
825 kfree(mp);
829 spin_lock_irq(&phba->hbalock);
830 for (i = 0; i < psli->num_rings; i++) {
831 pring = &psli->ring[i];
833 /* At this point in time the HBA is either reset or DOA. Either
834 * way, nothing should be on txcmplq as it will NEVER complete.
836 list_splice_init(&pring->txcmplq, &completions);
837 pring->txcmplq_cnt = 0;
838 spin_unlock_irq(&phba->hbalock);
840 /* Cancel all the IOCBs from the completions list */
841 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
842 IOERR_SLI_ABORTED);
844 lpfc_sli_abort_iocb_ring(phba, pring);
845 spin_lock_irq(&phba->hbalock);
847 spin_unlock_irq(&phba->hbalock);
849 return 0;
853 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
854 * @phba: pointer to lpfc HBA data structure.
856 * This routine will do uninitialization after the HBA is reset when bring
857 * down the SLI Layer.
859 * Return codes
860 * 0 - success.
861 * Any other value - error.
863 static int
864 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
866 struct lpfc_scsi_buf *psb, *psb_next;
867 LIST_HEAD(aborts);
868 int ret;
869 unsigned long iflag = 0;
870 struct lpfc_sglq *sglq_entry = NULL;
872 ret = lpfc_hba_down_post_s3(phba);
873 if (ret)
874 return ret;
875 /* At this point in time the HBA is either reset or DOA. Either
876 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
877 * on the lpfc_sgl_list so that it can either be freed if the
878 * driver is unloading or reposted if the driver is restarting
879 * the port.
881 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
882 /* scsl_buf_list */
883 /* abts_sgl_list_lock required because worker thread uses this
884 * list.
886 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
887 list_for_each_entry(sglq_entry,
888 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
889 sglq_entry->state = SGL_FREED;
891 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
892 &phba->sli4_hba.lpfc_sgl_list);
893 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
894 /* abts_scsi_buf_list_lock required because worker thread uses this
895 * list.
897 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
898 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
899 &aborts);
900 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
901 spin_unlock_irq(&phba->hbalock);
903 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
904 psb->pCmd = NULL;
905 psb->status = IOSTAT_SUCCESS;
907 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
908 list_splice(&aborts, &phba->lpfc_scsi_buf_list);
909 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
910 return 0;
914 * lpfc_hba_down_post - Wrapper func for hba down post routine
915 * @phba: pointer to lpfc HBA data structure.
917 * This routine wraps the actual SLI3 or SLI4 routine for performing
918 * uninitialization after the HBA is reset when bring down the SLI Layer.
920 * Return codes
921 * 0 - success.
922 * Any other value - error.
925 lpfc_hba_down_post(struct lpfc_hba *phba)
927 return (*phba->lpfc_hba_down_post)(phba);
931 * lpfc_hb_timeout - The HBA-timer timeout handler
932 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
934 * This is the HBA-timer timeout handler registered to the lpfc driver. When
935 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
936 * work-port-events bitmap and the worker thread is notified. This timeout
937 * event will be used by the worker thread to invoke the actual timeout
938 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
939 * be performed in the timeout handler and the HBA timeout event bit shall
940 * be cleared by the worker thread after it has taken the event bitmap out.
942 static void
943 lpfc_hb_timeout(unsigned long ptr)
945 struct lpfc_hba *phba;
946 uint32_t tmo_posted;
947 unsigned long iflag;
949 phba = (struct lpfc_hba *)ptr;
951 /* Check for heart beat timeout conditions */
952 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
953 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
954 if (!tmo_posted)
955 phba->pport->work_port_events |= WORKER_HB_TMO;
956 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
958 /* Tell the worker thread there is work to do */
959 if (!tmo_posted)
960 lpfc_worker_wake_up(phba);
961 return;
965 * lpfc_rrq_timeout - The RRQ-timer timeout handler
966 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
968 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
969 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
970 * work-port-events bitmap and the worker thread is notified. This timeout
971 * event will be used by the worker thread to invoke the actual timeout
972 * handler routine, lpfc_rrq_handler. Any periodical operations will
973 * be performed in the timeout handler and the RRQ timeout event bit shall
974 * be cleared by the worker thread after it has taken the event bitmap out.
976 static void
977 lpfc_rrq_timeout(unsigned long ptr)
979 struct lpfc_hba *phba;
980 unsigned long iflag;
982 phba = (struct lpfc_hba *)ptr;
983 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
984 phba->hba_flag |= HBA_RRQ_ACTIVE;
985 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
986 lpfc_worker_wake_up(phba);
990 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
991 * @phba: pointer to lpfc hba data structure.
992 * @pmboxq: pointer to the driver internal queue element for mailbox command.
994 * This is the callback function to the lpfc heart-beat mailbox command.
995 * If configured, the lpfc driver issues the heart-beat mailbox command to
996 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
997 * heart-beat mailbox command is issued, the driver shall set up heart-beat
998 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
999 * heart-beat outstanding state. Once the mailbox command comes back and
1000 * no error conditions detected, the heart-beat mailbox command timer is
1001 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1002 * state is cleared for the next heart-beat. If the timer expired with the
1003 * heart-beat outstanding state set, the driver will put the HBA offline.
1005 static void
1006 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1008 unsigned long drvr_flag;
1010 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1011 phba->hb_outstanding = 0;
1012 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1014 /* Check and reset heart-beat timer is necessary */
1015 mempool_free(pmboxq, phba->mbox_mem_pool);
1016 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1017 !(phba->link_state == LPFC_HBA_ERROR) &&
1018 !(phba->pport->load_flag & FC_UNLOADING))
1019 mod_timer(&phba->hb_tmofunc,
1020 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1021 return;
1025 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1026 * @phba: pointer to lpfc hba data structure.
1028 * This is the actual HBA-timer timeout handler to be invoked by the worker
1029 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1030 * handler performs any periodic operations needed for the device. If such
1031 * periodic event has already been attended to either in the interrupt handler
1032 * or by processing slow-ring or fast-ring events within the HBA-timer
1033 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1034 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1035 * is configured and there is no heart-beat mailbox command outstanding, a
1036 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1037 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1038 * to offline.
1040 void
1041 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1043 struct lpfc_vport **vports;
1044 LPFC_MBOXQ_t *pmboxq;
1045 struct lpfc_dmabuf *buf_ptr;
1046 int retval, i;
1047 struct lpfc_sli *psli = &phba->sli;
1048 LIST_HEAD(completions);
1050 vports = lpfc_create_vport_work_array(phba);
1051 if (vports != NULL)
1052 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1053 lpfc_rcv_seq_check_edtov(vports[i]);
1054 lpfc_destroy_vport_work_array(phba, vports);
1056 if ((phba->link_state == LPFC_HBA_ERROR) ||
1057 (phba->pport->load_flag & FC_UNLOADING) ||
1058 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1059 return;
1061 spin_lock_irq(&phba->pport->work_port_lock);
1063 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1064 jiffies)) {
1065 spin_unlock_irq(&phba->pport->work_port_lock);
1066 if (!phba->hb_outstanding)
1067 mod_timer(&phba->hb_tmofunc,
1068 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1069 else
1070 mod_timer(&phba->hb_tmofunc,
1071 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1072 return;
1074 spin_unlock_irq(&phba->pport->work_port_lock);
1076 if (phba->elsbuf_cnt &&
1077 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1078 spin_lock_irq(&phba->hbalock);
1079 list_splice_init(&phba->elsbuf, &completions);
1080 phba->elsbuf_cnt = 0;
1081 phba->elsbuf_prev_cnt = 0;
1082 spin_unlock_irq(&phba->hbalock);
1084 while (!list_empty(&completions)) {
1085 list_remove_head(&completions, buf_ptr,
1086 struct lpfc_dmabuf, list);
1087 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1088 kfree(buf_ptr);
1091 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1093 /* If there is no heart beat outstanding, issue a heartbeat command */
1094 if (phba->cfg_enable_hba_heartbeat) {
1095 if (!phba->hb_outstanding) {
1096 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1097 (list_empty(&psli->mboxq))) {
1098 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1099 GFP_KERNEL);
1100 if (!pmboxq) {
1101 mod_timer(&phba->hb_tmofunc,
1102 jiffies +
1103 HZ * LPFC_HB_MBOX_INTERVAL);
1104 return;
1107 lpfc_heart_beat(phba, pmboxq);
1108 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1109 pmboxq->vport = phba->pport;
1110 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1111 MBX_NOWAIT);
1113 if (retval != MBX_BUSY &&
1114 retval != MBX_SUCCESS) {
1115 mempool_free(pmboxq,
1116 phba->mbox_mem_pool);
1117 mod_timer(&phba->hb_tmofunc,
1118 jiffies +
1119 HZ * LPFC_HB_MBOX_INTERVAL);
1120 return;
1122 phba->skipped_hb = 0;
1123 phba->hb_outstanding = 1;
1124 } else if (time_before_eq(phba->last_completion_time,
1125 phba->skipped_hb)) {
1126 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1127 "2857 Last completion time not "
1128 " updated in %d ms\n",
1129 jiffies_to_msecs(jiffies
1130 - phba->last_completion_time));
1131 } else
1132 phba->skipped_hb = jiffies;
1134 mod_timer(&phba->hb_tmofunc,
1135 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1136 return;
1137 } else {
1139 * If heart beat timeout called with hb_outstanding set
1140 * we need to give the hb mailbox cmd a chance to
1141 * complete or TMO.
1143 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1144 "0459 Adapter heartbeat still out"
1145 "standing:last compl time was %d ms.\n",
1146 jiffies_to_msecs(jiffies
1147 - phba->last_completion_time));
1148 mod_timer(&phba->hb_tmofunc,
1149 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1155 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1156 * @phba: pointer to lpfc hba data structure.
1158 * This routine is called to bring the HBA offline when HBA hardware error
1159 * other than Port Error 6 has been detected.
1161 static void
1162 lpfc_offline_eratt(struct lpfc_hba *phba)
1164 struct lpfc_sli *psli = &phba->sli;
1166 spin_lock_irq(&phba->hbalock);
1167 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1168 spin_unlock_irq(&phba->hbalock);
1169 lpfc_offline_prep(phba);
1171 lpfc_offline(phba);
1172 lpfc_reset_barrier(phba);
1173 spin_lock_irq(&phba->hbalock);
1174 lpfc_sli_brdreset(phba);
1175 spin_unlock_irq(&phba->hbalock);
1176 lpfc_hba_down_post(phba);
1177 lpfc_sli_brdready(phba, HS_MBRDY);
1178 lpfc_unblock_mgmt_io(phba);
1179 phba->link_state = LPFC_HBA_ERROR;
1180 return;
1184 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1185 * @phba: pointer to lpfc hba data structure.
1187 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1188 * other than Port Error 6 has been detected.
1190 static void
1191 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1193 lpfc_offline_prep(phba);
1194 lpfc_offline(phba);
1195 lpfc_sli4_brdreset(phba);
1196 lpfc_hba_down_post(phba);
1197 lpfc_sli4_post_status_check(phba);
1198 lpfc_unblock_mgmt_io(phba);
1199 phba->link_state = LPFC_HBA_ERROR;
1203 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1204 * @phba: pointer to lpfc hba data structure.
1206 * This routine is invoked to handle the deferred HBA hardware error
1207 * conditions. This type of error is indicated by HBA by setting ER1
1208 * and another ER bit in the host status register. The driver will
1209 * wait until the ER1 bit clears before handling the error condition.
1211 static void
1212 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1214 uint32_t old_host_status = phba->work_hs;
1215 struct lpfc_sli_ring *pring;
1216 struct lpfc_sli *psli = &phba->sli;
1218 /* If the pci channel is offline, ignore possible errors,
1219 * since we cannot communicate with the pci card anyway.
1221 if (pci_channel_offline(phba->pcidev)) {
1222 spin_lock_irq(&phba->hbalock);
1223 phba->hba_flag &= ~DEFER_ERATT;
1224 spin_unlock_irq(&phba->hbalock);
1225 return;
1228 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1229 "0479 Deferred Adapter Hardware Error "
1230 "Data: x%x x%x x%x\n",
1231 phba->work_hs,
1232 phba->work_status[0], phba->work_status[1]);
1234 spin_lock_irq(&phba->hbalock);
1235 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1236 spin_unlock_irq(&phba->hbalock);
1240 * Firmware stops when it triggred erratt. That could cause the I/Os
1241 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1242 * SCSI layer retry it after re-establishing link.
1244 pring = &psli->ring[psli->fcp_ring];
1245 lpfc_sli_abort_iocb_ring(phba, pring);
1248 * There was a firmware error. Take the hba offline and then
1249 * attempt to restart it.
1251 lpfc_offline_prep(phba);
1252 lpfc_offline(phba);
1254 /* Wait for the ER1 bit to clear.*/
1255 while (phba->work_hs & HS_FFER1) {
1256 msleep(100);
1257 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1258 phba->work_hs = UNPLUG_ERR ;
1259 break;
1261 /* If driver is unloading let the worker thread continue */
1262 if (phba->pport->load_flag & FC_UNLOADING) {
1263 phba->work_hs = 0;
1264 break;
1269 * This is to ptrotect against a race condition in which
1270 * first write to the host attention register clear the
1271 * host status register.
1273 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1274 phba->work_hs = old_host_status & ~HS_FFER1;
1276 spin_lock_irq(&phba->hbalock);
1277 phba->hba_flag &= ~DEFER_ERATT;
1278 spin_unlock_irq(&phba->hbalock);
1279 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1280 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1283 static void
1284 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1286 struct lpfc_board_event_header board_event;
1287 struct Scsi_Host *shost;
1289 board_event.event_type = FC_REG_BOARD_EVENT;
1290 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1291 shost = lpfc_shost_from_vport(phba->pport);
1292 fc_host_post_vendor_event(shost, fc_get_event_number(),
1293 sizeof(board_event),
1294 (char *) &board_event,
1295 LPFC_NL_VENDOR_ID);
1299 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1300 * @phba: pointer to lpfc hba data structure.
1302 * This routine is invoked to handle the following HBA hardware error
1303 * conditions:
1304 * 1 - HBA error attention interrupt
1305 * 2 - DMA ring index out of range
1306 * 3 - Mailbox command came back as unknown
1308 static void
1309 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1311 struct lpfc_vport *vport = phba->pport;
1312 struct lpfc_sli *psli = &phba->sli;
1313 struct lpfc_sli_ring *pring;
1314 uint32_t event_data;
1315 unsigned long temperature;
1316 struct temp_event temp_event_data;
1317 struct Scsi_Host *shost;
1319 /* If the pci channel is offline, ignore possible errors,
1320 * since we cannot communicate with the pci card anyway.
1322 if (pci_channel_offline(phba->pcidev)) {
1323 spin_lock_irq(&phba->hbalock);
1324 phba->hba_flag &= ~DEFER_ERATT;
1325 spin_unlock_irq(&phba->hbalock);
1326 return;
1329 /* If resets are disabled then leave the HBA alone and return */
1330 if (!phba->cfg_enable_hba_reset)
1331 return;
1333 /* Send an internal error event to mgmt application */
1334 lpfc_board_errevt_to_mgmt(phba);
1336 if (phba->hba_flag & DEFER_ERATT)
1337 lpfc_handle_deferred_eratt(phba);
1339 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1340 if (phba->work_hs & HS_FFER6)
1341 /* Re-establishing Link */
1342 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1343 "1301 Re-establishing Link "
1344 "Data: x%x x%x x%x\n",
1345 phba->work_hs, phba->work_status[0],
1346 phba->work_status[1]);
1347 if (phba->work_hs & HS_FFER8)
1348 /* Device Zeroization */
1349 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1350 "2861 Host Authentication device "
1351 "zeroization Data:x%x x%x x%x\n",
1352 phba->work_hs, phba->work_status[0],
1353 phba->work_status[1]);
1355 spin_lock_irq(&phba->hbalock);
1356 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1357 spin_unlock_irq(&phba->hbalock);
1360 * Firmware stops when it triggled erratt with HS_FFER6.
1361 * That could cause the I/Os dropped by the firmware.
1362 * Error iocb (I/O) on txcmplq and let the SCSI layer
1363 * retry it after re-establishing link.
1365 pring = &psli->ring[psli->fcp_ring];
1366 lpfc_sli_abort_iocb_ring(phba, pring);
1369 * There was a firmware error. Take the hba offline and then
1370 * attempt to restart it.
1372 lpfc_offline_prep(phba);
1373 lpfc_offline(phba);
1374 lpfc_sli_brdrestart(phba);
1375 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
1376 lpfc_unblock_mgmt_io(phba);
1377 return;
1379 lpfc_unblock_mgmt_io(phba);
1380 } else if (phba->work_hs & HS_CRIT_TEMP) {
1381 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1382 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1383 temp_event_data.event_code = LPFC_CRIT_TEMP;
1384 temp_event_data.data = (uint32_t)temperature;
1386 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1387 "0406 Adapter maximum temperature exceeded "
1388 "(%ld), taking this port offline "
1389 "Data: x%x x%x x%x\n",
1390 temperature, phba->work_hs,
1391 phba->work_status[0], phba->work_status[1]);
1393 shost = lpfc_shost_from_vport(phba->pport);
1394 fc_host_post_vendor_event(shost, fc_get_event_number(),
1395 sizeof(temp_event_data),
1396 (char *) &temp_event_data,
1397 SCSI_NL_VID_TYPE_PCI
1398 | PCI_VENDOR_ID_EMULEX);
1400 spin_lock_irq(&phba->hbalock);
1401 phba->over_temp_state = HBA_OVER_TEMP;
1402 spin_unlock_irq(&phba->hbalock);
1403 lpfc_offline_eratt(phba);
1405 } else {
1406 /* The if clause above forces this code path when the status
1407 * failure is a value other than FFER6. Do not call the offline
1408 * twice. This is the adapter hardware error path.
1410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1411 "0457 Adapter Hardware Error "
1412 "Data: x%x x%x x%x\n",
1413 phba->work_hs,
1414 phba->work_status[0], phba->work_status[1]);
1416 event_data = FC_REG_DUMP_EVENT;
1417 shost = lpfc_shost_from_vport(vport);
1418 fc_host_post_vendor_event(shost, fc_get_event_number(),
1419 sizeof(event_data), (char *) &event_data,
1420 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1422 lpfc_offline_eratt(phba);
1424 return;
1428 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1429 * @phba: pointer to lpfc hba data structure.
1431 * This routine is invoked to handle the SLI4 HBA hardware error attention
1432 * conditions.
1434 static void
1435 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1437 struct lpfc_vport *vport = phba->pport;
1438 uint32_t event_data;
1439 struct Scsi_Host *shost;
1440 uint32_t if_type;
1441 struct lpfc_register portstat_reg;
1443 /* If the pci channel is offline, ignore possible errors, since
1444 * we cannot communicate with the pci card anyway.
1446 if (pci_channel_offline(phba->pcidev))
1447 return;
1448 /* If resets are disabled then leave the HBA alone and return */
1449 if (!phba->cfg_enable_hba_reset)
1450 return;
1452 /* Send an internal error event to mgmt application */
1453 lpfc_board_errevt_to_mgmt(phba);
1455 /* For now, the actual action for SLI4 device handling is not
1456 * specified yet, just treated it as adaptor hardware failure
1458 event_data = FC_REG_DUMP_EVENT;
1459 shost = lpfc_shost_from_vport(vport);
1460 fc_host_post_vendor_event(shost, fc_get_event_number(),
1461 sizeof(event_data), (char *) &event_data,
1462 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1464 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1465 switch (if_type) {
1466 case LPFC_SLI_INTF_IF_TYPE_0:
1467 lpfc_sli4_offline_eratt(phba);
1468 break;
1469 case LPFC_SLI_INTF_IF_TYPE_2:
1470 portstat_reg.word0 =
1471 readl(phba->sli4_hba.u.if_type2.STATUSregaddr);
1473 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1474 /* TODO: Register for Overtemp async events. */
1475 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1476 "2889 Port Overtemperature event, "
1477 "taking port\n");
1478 spin_lock_irq(&phba->hbalock);
1479 phba->over_temp_state = HBA_OVER_TEMP;
1480 spin_unlock_irq(&phba->hbalock);
1481 lpfc_sli4_offline_eratt(phba);
1482 return;
1484 if (bf_get(lpfc_sliport_status_rn, &portstat_reg)) {
1486 * TODO: Attempt port recovery via a port reset.
1487 * When fully implemented, the driver should
1488 * attempt to recover the port here and return.
1489 * For now, log an error and take the port offline.
1491 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1492 "2887 Port Error: Attempting "
1493 "Port Recovery\n");
1495 lpfc_sli4_offline_eratt(phba);
1496 break;
1497 case LPFC_SLI_INTF_IF_TYPE_1:
1498 default:
1499 break;
1504 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1505 * @phba: pointer to lpfc HBA data structure.
1507 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1508 * routine from the API jump table function pointer from the lpfc_hba struct.
1510 * Return codes
1511 * 0 - success.
1512 * Any other value - error.
1514 void
1515 lpfc_handle_eratt(struct lpfc_hba *phba)
1517 (*phba->lpfc_handle_eratt)(phba);
1521 * lpfc_handle_latt - The HBA link event handler
1522 * @phba: pointer to lpfc hba data structure.
1524 * This routine is invoked from the worker thread to handle a HBA host
1525 * attention link event.
1527 void
1528 lpfc_handle_latt(struct lpfc_hba *phba)
1530 struct lpfc_vport *vport = phba->pport;
1531 struct lpfc_sli *psli = &phba->sli;
1532 LPFC_MBOXQ_t *pmb;
1533 volatile uint32_t control;
1534 struct lpfc_dmabuf *mp;
1535 int rc = 0;
1537 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1538 if (!pmb) {
1539 rc = 1;
1540 goto lpfc_handle_latt_err_exit;
1543 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1544 if (!mp) {
1545 rc = 2;
1546 goto lpfc_handle_latt_free_pmb;
1549 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1550 if (!mp->virt) {
1551 rc = 3;
1552 goto lpfc_handle_latt_free_mp;
1555 /* Cleanup any outstanding ELS commands */
1556 lpfc_els_flush_all_cmd(phba);
1558 psli->slistat.link_event++;
1559 lpfc_read_topology(phba, pmb, mp);
1560 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1561 pmb->vport = vport;
1562 /* Block ELS IOCBs until we have processed this mbox command */
1563 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1564 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1565 if (rc == MBX_NOT_FINISHED) {
1566 rc = 4;
1567 goto lpfc_handle_latt_free_mbuf;
1570 /* Clear Link Attention in HA REG */
1571 spin_lock_irq(&phba->hbalock);
1572 writel(HA_LATT, phba->HAregaddr);
1573 readl(phba->HAregaddr); /* flush */
1574 spin_unlock_irq(&phba->hbalock);
1576 return;
1578 lpfc_handle_latt_free_mbuf:
1579 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1580 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1581 lpfc_handle_latt_free_mp:
1582 kfree(mp);
1583 lpfc_handle_latt_free_pmb:
1584 mempool_free(pmb, phba->mbox_mem_pool);
1585 lpfc_handle_latt_err_exit:
1586 /* Enable Link attention interrupts */
1587 spin_lock_irq(&phba->hbalock);
1588 psli->sli_flag |= LPFC_PROCESS_LA;
1589 control = readl(phba->HCregaddr);
1590 control |= HC_LAINT_ENA;
1591 writel(control, phba->HCregaddr);
1592 readl(phba->HCregaddr); /* flush */
1594 /* Clear Link Attention in HA REG */
1595 writel(HA_LATT, phba->HAregaddr);
1596 readl(phba->HAregaddr); /* flush */
1597 spin_unlock_irq(&phba->hbalock);
1598 lpfc_linkdown(phba);
1599 phba->link_state = LPFC_HBA_ERROR;
1601 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1602 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1604 return;
1608 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1609 * @phba: pointer to lpfc hba data structure.
1610 * @vpd: pointer to the vital product data.
1611 * @len: length of the vital product data in bytes.
1613 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1614 * an array of characters. In this routine, the ModelName, ProgramType, and
1615 * ModelDesc, etc. fields of the phba data structure will be populated.
1617 * Return codes
1618 * 0 - pointer to the VPD passed in is NULL
1619 * 1 - success
1622 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1624 uint8_t lenlo, lenhi;
1625 int Length;
1626 int i, j;
1627 int finished = 0;
1628 int index = 0;
1630 if (!vpd)
1631 return 0;
1633 /* Vital Product */
1634 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1635 "0455 Vital Product Data: x%x x%x x%x x%x\n",
1636 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1637 (uint32_t) vpd[3]);
1638 while (!finished && (index < (len - 4))) {
1639 switch (vpd[index]) {
1640 case 0x82:
1641 case 0x91:
1642 index += 1;
1643 lenlo = vpd[index];
1644 index += 1;
1645 lenhi = vpd[index];
1646 index += 1;
1647 i = ((((unsigned short)lenhi) << 8) + lenlo);
1648 index += i;
1649 break;
1650 case 0x90:
1651 index += 1;
1652 lenlo = vpd[index];
1653 index += 1;
1654 lenhi = vpd[index];
1655 index += 1;
1656 Length = ((((unsigned short)lenhi) << 8) + lenlo);
1657 if (Length > len - index)
1658 Length = len - index;
1659 while (Length > 0) {
1660 /* Look for Serial Number */
1661 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1662 index += 2;
1663 i = vpd[index];
1664 index += 1;
1665 j = 0;
1666 Length -= (3+i);
1667 while(i--) {
1668 phba->SerialNumber[j++] = vpd[index++];
1669 if (j == 31)
1670 break;
1672 phba->SerialNumber[j] = 0;
1673 continue;
1675 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1676 phba->vpd_flag |= VPD_MODEL_DESC;
1677 index += 2;
1678 i = vpd[index];
1679 index += 1;
1680 j = 0;
1681 Length -= (3+i);
1682 while(i--) {
1683 phba->ModelDesc[j++] = vpd[index++];
1684 if (j == 255)
1685 break;
1687 phba->ModelDesc[j] = 0;
1688 continue;
1690 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1691 phba->vpd_flag |= VPD_MODEL_NAME;
1692 index += 2;
1693 i = vpd[index];
1694 index += 1;
1695 j = 0;
1696 Length -= (3+i);
1697 while(i--) {
1698 phba->ModelName[j++] = vpd[index++];
1699 if (j == 79)
1700 break;
1702 phba->ModelName[j] = 0;
1703 continue;
1705 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1706 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1707 index += 2;
1708 i = vpd[index];
1709 index += 1;
1710 j = 0;
1711 Length -= (3+i);
1712 while(i--) {
1713 phba->ProgramType[j++] = vpd[index++];
1714 if (j == 255)
1715 break;
1717 phba->ProgramType[j] = 0;
1718 continue;
1720 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1721 phba->vpd_flag |= VPD_PORT;
1722 index += 2;
1723 i = vpd[index];
1724 index += 1;
1725 j = 0;
1726 Length -= (3+i);
1727 while(i--) {
1728 phba->Port[j++] = vpd[index++];
1729 if (j == 19)
1730 break;
1732 phba->Port[j] = 0;
1733 continue;
1735 else {
1736 index += 2;
1737 i = vpd[index];
1738 index += 1;
1739 index += i;
1740 Length -= (3 + i);
1743 finished = 0;
1744 break;
1745 case 0x78:
1746 finished = 1;
1747 break;
1748 default:
1749 index ++;
1750 break;
1754 return(1);
1758 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1759 * @phba: pointer to lpfc hba data structure.
1760 * @mdp: pointer to the data structure to hold the derived model name.
1761 * @descp: pointer to the data structure to hold the derived description.
1763 * This routine retrieves HBA's description based on its registered PCI device
1764 * ID. The @descp passed into this function points to an array of 256 chars. It
1765 * shall be returned with the model name, maximum speed, and the host bus type.
1766 * The @mdp passed into this function points to an array of 80 chars. When the
1767 * function returns, the @mdp will be filled with the model name.
1769 static void
1770 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1772 lpfc_vpd_t *vp;
1773 uint16_t dev_id = phba->pcidev->device;
1774 int max_speed;
1775 int GE = 0;
1776 int oneConnect = 0; /* default is not a oneConnect */
1777 struct {
1778 char *name;
1779 char *bus;
1780 char *function;
1781 } m = {"<Unknown>", "", ""};
1783 if (mdp && mdp[0] != '\0'
1784 && descp && descp[0] != '\0')
1785 return;
1787 if (phba->lmt & LMT_16Gb)
1788 max_speed = 16;
1789 else if (phba->lmt & LMT_10Gb)
1790 max_speed = 10;
1791 else if (phba->lmt & LMT_8Gb)
1792 max_speed = 8;
1793 else if (phba->lmt & LMT_4Gb)
1794 max_speed = 4;
1795 else if (phba->lmt & LMT_2Gb)
1796 max_speed = 2;
1797 else
1798 max_speed = 1;
1800 vp = &phba->vpd;
1802 switch (dev_id) {
1803 case PCI_DEVICE_ID_FIREFLY:
1804 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1805 break;
1806 case PCI_DEVICE_ID_SUPERFLY:
1807 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1808 m = (typeof(m)){"LP7000", "PCI",
1809 "Fibre Channel Adapter"};
1810 else
1811 m = (typeof(m)){"LP7000E", "PCI",
1812 "Fibre Channel Adapter"};
1813 break;
1814 case PCI_DEVICE_ID_DRAGONFLY:
1815 m = (typeof(m)){"LP8000", "PCI",
1816 "Fibre Channel Adapter"};
1817 break;
1818 case PCI_DEVICE_ID_CENTAUR:
1819 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1820 m = (typeof(m)){"LP9002", "PCI",
1821 "Fibre Channel Adapter"};
1822 else
1823 m = (typeof(m)){"LP9000", "PCI",
1824 "Fibre Channel Adapter"};
1825 break;
1826 case PCI_DEVICE_ID_RFLY:
1827 m = (typeof(m)){"LP952", "PCI",
1828 "Fibre Channel Adapter"};
1829 break;
1830 case PCI_DEVICE_ID_PEGASUS:
1831 m = (typeof(m)){"LP9802", "PCI-X",
1832 "Fibre Channel Adapter"};
1833 break;
1834 case PCI_DEVICE_ID_THOR:
1835 m = (typeof(m)){"LP10000", "PCI-X",
1836 "Fibre Channel Adapter"};
1837 break;
1838 case PCI_DEVICE_ID_VIPER:
1839 m = (typeof(m)){"LPX1000", "PCI-X",
1840 "Fibre Channel Adapter"};
1841 break;
1842 case PCI_DEVICE_ID_PFLY:
1843 m = (typeof(m)){"LP982", "PCI-X",
1844 "Fibre Channel Adapter"};
1845 break;
1846 case PCI_DEVICE_ID_TFLY:
1847 m = (typeof(m)){"LP1050", "PCI-X",
1848 "Fibre Channel Adapter"};
1849 break;
1850 case PCI_DEVICE_ID_HELIOS:
1851 m = (typeof(m)){"LP11000", "PCI-X2",
1852 "Fibre Channel Adapter"};
1853 break;
1854 case PCI_DEVICE_ID_HELIOS_SCSP:
1855 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1856 "Fibre Channel Adapter"};
1857 break;
1858 case PCI_DEVICE_ID_HELIOS_DCSP:
1859 m = (typeof(m)){"LP11002-SP", "PCI-X2",
1860 "Fibre Channel Adapter"};
1861 break;
1862 case PCI_DEVICE_ID_NEPTUNE:
1863 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1864 break;
1865 case PCI_DEVICE_ID_NEPTUNE_SCSP:
1866 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1867 break;
1868 case PCI_DEVICE_ID_NEPTUNE_DCSP:
1869 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1870 break;
1871 case PCI_DEVICE_ID_BMID:
1872 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1873 break;
1874 case PCI_DEVICE_ID_BSMB:
1875 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1876 break;
1877 case PCI_DEVICE_ID_ZEPHYR:
1878 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1879 break;
1880 case PCI_DEVICE_ID_ZEPHYR_SCSP:
1881 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1882 break;
1883 case PCI_DEVICE_ID_ZEPHYR_DCSP:
1884 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1885 GE = 1;
1886 break;
1887 case PCI_DEVICE_ID_ZMID:
1888 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1889 break;
1890 case PCI_DEVICE_ID_ZSMB:
1891 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1892 break;
1893 case PCI_DEVICE_ID_LP101:
1894 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1895 break;
1896 case PCI_DEVICE_ID_LP10000S:
1897 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1898 break;
1899 case PCI_DEVICE_ID_LP11000S:
1900 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1901 break;
1902 case PCI_DEVICE_ID_LPE11000S:
1903 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1904 break;
1905 case PCI_DEVICE_ID_SAT:
1906 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1907 break;
1908 case PCI_DEVICE_ID_SAT_MID:
1909 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1910 break;
1911 case PCI_DEVICE_ID_SAT_SMB:
1912 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1913 break;
1914 case PCI_DEVICE_ID_SAT_DCSP:
1915 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1916 break;
1917 case PCI_DEVICE_ID_SAT_SCSP:
1918 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1919 break;
1920 case PCI_DEVICE_ID_SAT_S:
1921 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1922 break;
1923 case PCI_DEVICE_ID_HORNET:
1924 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
1925 GE = 1;
1926 break;
1927 case PCI_DEVICE_ID_PROTEUS_VF:
1928 m = (typeof(m)){"LPev12000", "PCIe IOV",
1929 "Fibre Channel Adapter"};
1930 break;
1931 case PCI_DEVICE_ID_PROTEUS_PF:
1932 m = (typeof(m)){"LPev12000", "PCIe IOV",
1933 "Fibre Channel Adapter"};
1934 break;
1935 case PCI_DEVICE_ID_PROTEUS_S:
1936 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1937 "Fibre Channel Adapter"};
1938 break;
1939 case PCI_DEVICE_ID_TIGERSHARK:
1940 oneConnect = 1;
1941 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
1942 break;
1943 case PCI_DEVICE_ID_TOMCAT:
1944 oneConnect = 1;
1945 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
1946 break;
1947 case PCI_DEVICE_ID_FALCON:
1948 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
1949 "EmulexSecure Fibre"};
1950 break;
1951 case PCI_DEVICE_ID_BALIUS:
1952 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
1953 "Fibre Channel Adapter"};
1954 break;
1955 case PCI_DEVICE_ID_LANCER_FC:
1956 case PCI_DEVICE_ID_LANCER_FC_VF:
1957 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
1958 break;
1959 case PCI_DEVICE_ID_LANCER_FCOE:
1960 case PCI_DEVICE_ID_LANCER_FCOE_VF:
1961 oneConnect = 1;
1962 m = (typeof(m)){"OCe50100", "PCIe", "FCoE"};
1963 break;
1964 default:
1965 m = (typeof(m)){"Unknown", "", ""};
1966 break;
1969 if (mdp && mdp[0] == '\0')
1970 snprintf(mdp, 79,"%s", m.name);
1972 * oneConnect hba requires special processing, they are all initiators
1973 * and we put the port number on the end
1975 if (descp && descp[0] == '\0') {
1976 if (oneConnect)
1977 snprintf(descp, 255,
1978 "Emulex OneConnect %s, %s Initiator, Port %s",
1979 m.name, m.function,
1980 phba->Port);
1981 else
1982 snprintf(descp, 255,
1983 "Emulex %s %d%s %s %s",
1984 m.name, max_speed, (GE) ? "GE" : "Gb",
1985 m.bus, m.function);
1990 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1991 * @phba: pointer to lpfc hba data structure.
1992 * @pring: pointer to a IOCB ring.
1993 * @cnt: the number of IOCBs to be posted to the IOCB ring.
1995 * This routine posts a given number of IOCBs with the associated DMA buffer
1996 * descriptors specified by the cnt argument to the given IOCB ring.
1998 * Return codes
1999 * The number of IOCBs NOT able to be posted to the IOCB ring.
2002 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2004 IOCB_t *icmd;
2005 struct lpfc_iocbq *iocb;
2006 struct lpfc_dmabuf *mp1, *mp2;
2008 cnt += pring->missbufcnt;
2010 /* While there are buffers to post */
2011 while (cnt > 0) {
2012 /* Allocate buffer for command iocb */
2013 iocb = lpfc_sli_get_iocbq(phba);
2014 if (iocb == NULL) {
2015 pring->missbufcnt = cnt;
2016 return cnt;
2018 icmd = &iocb->iocb;
2020 /* 2 buffers can be posted per command */
2021 /* Allocate buffer to post */
2022 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2023 if (mp1)
2024 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2025 if (!mp1 || !mp1->virt) {
2026 kfree(mp1);
2027 lpfc_sli_release_iocbq(phba, iocb);
2028 pring->missbufcnt = cnt;
2029 return cnt;
2032 INIT_LIST_HEAD(&mp1->list);
2033 /* Allocate buffer to post */
2034 if (cnt > 1) {
2035 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2036 if (mp2)
2037 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2038 &mp2->phys);
2039 if (!mp2 || !mp2->virt) {
2040 kfree(mp2);
2041 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2042 kfree(mp1);
2043 lpfc_sli_release_iocbq(phba, iocb);
2044 pring->missbufcnt = cnt;
2045 return cnt;
2048 INIT_LIST_HEAD(&mp2->list);
2049 } else {
2050 mp2 = NULL;
2053 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2054 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2055 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2056 icmd->ulpBdeCount = 1;
2057 cnt--;
2058 if (mp2) {
2059 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2060 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2061 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2062 cnt--;
2063 icmd->ulpBdeCount = 2;
2066 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2067 icmd->ulpLe = 1;
2069 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2070 IOCB_ERROR) {
2071 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2072 kfree(mp1);
2073 cnt++;
2074 if (mp2) {
2075 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2076 kfree(mp2);
2077 cnt++;
2079 lpfc_sli_release_iocbq(phba, iocb);
2080 pring->missbufcnt = cnt;
2081 return cnt;
2083 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2084 if (mp2)
2085 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2087 pring->missbufcnt = 0;
2088 return 0;
2092 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2093 * @phba: pointer to lpfc hba data structure.
2095 * This routine posts initial receive IOCB buffers to the ELS ring. The
2096 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2097 * set to 64 IOCBs.
2099 * Return codes
2100 * 0 - success (currently always success)
2102 static int
2103 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2105 struct lpfc_sli *psli = &phba->sli;
2107 /* Ring 0, ELS / CT buffers */
2108 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2109 /* Ring 2 - FCP no buffers needed */
2111 return 0;
2114 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2117 * lpfc_sha_init - Set up initial array of hash table entries
2118 * @HashResultPointer: pointer to an array as hash table.
2120 * This routine sets up the initial values to the array of hash table entries
2121 * for the LC HBAs.
2123 static void
2124 lpfc_sha_init(uint32_t * HashResultPointer)
2126 HashResultPointer[0] = 0x67452301;
2127 HashResultPointer[1] = 0xEFCDAB89;
2128 HashResultPointer[2] = 0x98BADCFE;
2129 HashResultPointer[3] = 0x10325476;
2130 HashResultPointer[4] = 0xC3D2E1F0;
2134 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2135 * @HashResultPointer: pointer to an initial/result hash table.
2136 * @HashWorkingPointer: pointer to an working hash table.
2138 * This routine iterates an initial hash table pointed by @HashResultPointer
2139 * with the values from the working hash table pointeed by @HashWorkingPointer.
2140 * The results are putting back to the initial hash table, returned through
2141 * the @HashResultPointer as the result hash table.
2143 static void
2144 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2146 int t;
2147 uint32_t TEMP;
2148 uint32_t A, B, C, D, E;
2149 t = 16;
2150 do {
2151 HashWorkingPointer[t] =
2152 S(1,
2153 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2154 8] ^
2155 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2156 } while (++t <= 79);
2157 t = 0;
2158 A = HashResultPointer[0];
2159 B = HashResultPointer[1];
2160 C = HashResultPointer[2];
2161 D = HashResultPointer[3];
2162 E = HashResultPointer[4];
2164 do {
2165 if (t < 20) {
2166 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2167 } else if (t < 40) {
2168 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2169 } else if (t < 60) {
2170 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2171 } else {
2172 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2174 TEMP += S(5, A) + E + HashWorkingPointer[t];
2175 E = D;
2176 D = C;
2177 C = S(30, B);
2178 B = A;
2179 A = TEMP;
2180 } while (++t <= 79);
2182 HashResultPointer[0] += A;
2183 HashResultPointer[1] += B;
2184 HashResultPointer[2] += C;
2185 HashResultPointer[3] += D;
2186 HashResultPointer[4] += E;
2191 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2192 * @RandomChallenge: pointer to the entry of host challenge random number array.
2193 * @HashWorking: pointer to the entry of the working hash array.
2195 * This routine calculates the working hash array referred by @HashWorking
2196 * from the challenge random numbers associated with the host, referred by
2197 * @RandomChallenge. The result is put into the entry of the working hash
2198 * array and returned by reference through @HashWorking.
2200 static void
2201 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2203 *HashWorking = (*RandomChallenge ^ *HashWorking);
2207 * lpfc_hba_init - Perform special handling for LC HBA initialization
2208 * @phba: pointer to lpfc hba data structure.
2209 * @hbainit: pointer to an array of unsigned 32-bit integers.
2211 * This routine performs the special handling for LC HBA initialization.
2213 void
2214 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2216 int t;
2217 uint32_t *HashWorking;
2218 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2220 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2221 if (!HashWorking)
2222 return;
2224 HashWorking[0] = HashWorking[78] = *pwwnn++;
2225 HashWorking[1] = HashWorking[79] = *pwwnn;
2227 for (t = 0; t < 7; t++)
2228 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2230 lpfc_sha_init(hbainit);
2231 lpfc_sha_iterate(hbainit, HashWorking);
2232 kfree(HashWorking);
2236 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2237 * @vport: pointer to a virtual N_Port data structure.
2239 * This routine performs the necessary cleanups before deleting the @vport.
2240 * It invokes the discovery state machine to perform necessary state
2241 * transitions and to release the ndlps associated with the @vport. Note,
2242 * the physical port is treated as @vport 0.
2244 void
2245 lpfc_cleanup(struct lpfc_vport *vport)
2247 struct lpfc_hba *phba = vport->phba;
2248 struct lpfc_nodelist *ndlp, *next_ndlp;
2249 int i = 0;
2251 if (phba->link_state > LPFC_LINK_DOWN)
2252 lpfc_port_link_failure(vport);
2254 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2255 if (!NLP_CHK_NODE_ACT(ndlp)) {
2256 ndlp = lpfc_enable_node(vport, ndlp,
2257 NLP_STE_UNUSED_NODE);
2258 if (!ndlp)
2259 continue;
2260 spin_lock_irq(&phba->ndlp_lock);
2261 NLP_SET_FREE_REQ(ndlp);
2262 spin_unlock_irq(&phba->ndlp_lock);
2263 /* Trigger the release of the ndlp memory */
2264 lpfc_nlp_put(ndlp);
2265 continue;
2267 spin_lock_irq(&phba->ndlp_lock);
2268 if (NLP_CHK_FREE_REQ(ndlp)) {
2269 /* The ndlp should not be in memory free mode already */
2270 spin_unlock_irq(&phba->ndlp_lock);
2271 continue;
2272 } else
2273 /* Indicate request for freeing ndlp memory */
2274 NLP_SET_FREE_REQ(ndlp);
2275 spin_unlock_irq(&phba->ndlp_lock);
2277 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2278 ndlp->nlp_DID == Fabric_DID) {
2279 /* Just free up ndlp with Fabric_DID for vports */
2280 lpfc_nlp_put(ndlp);
2281 continue;
2284 if (ndlp->nlp_type & NLP_FABRIC)
2285 lpfc_disc_state_machine(vport, ndlp, NULL,
2286 NLP_EVT_DEVICE_RECOVERY);
2288 lpfc_disc_state_machine(vport, ndlp, NULL,
2289 NLP_EVT_DEVICE_RM);
2293 /* At this point, ALL ndlp's should be gone
2294 * because of the previous NLP_EVT_DEVICE_RM.
2295 * Lets wait for this to happen, if needed.
2297 while (!list_empty(&vport->fc_nodes)) {
2298 if (i++ > 3000) {
2299 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2300 "0233 Nodelist not empty\n");
2301 list_for_each_entry_safe(ndlp, next_ndlp,
2302 &vport->fc_nodes, nlp_listp) {
2303 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2304 LOG_NODE,
2305 "0282 did:x%x ndlp:x%p "
2306 "usgmap:x%x refcnt:%d\n",
2307 ndlp->nlp_DID, (void *)ndlp,
2308 ndlp->nlp_usg_map,
2309 atomic_read(
2310 &ndlp->kref.refcount));
2312 break;
2315 /* Wait for any activity on ndlps to settle */
2316 msleep(10);
2318 lpfc_cleanup_vports_rrqs(vport, NULL);
2322 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2323 * @vport: pointer to a virtual N_Port data structure.
2325 * This routine stops all the timers associated with a @vport. This function
2326 * is invoked before disabling or deleting a @vport. Note that the physical
2327 * port is treated as @vport 0.
2329 void
2330 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2332 del_timer_sync(&vport->els_tmofunc);
2333 del_timer_sync(&vport->fc_fdmitmo);
2334 del_timer_sync(&vport->delayed_disc_tmo);
2335 lpfc_can_disctmo(vport);
2336 return;
2340 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2341 * @phba: pointer to lpfc hba data structure.
2343 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2344 * caller of this routine should already hold the host lock.
2346 void
2347 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2349 /* Clear pending FCF rediscovery wait flag */
2350 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2352 /* Now, try to stop the timer */
2353 del_timer(&phba->fcf.redisc_wait);
2357 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2358 * @phba: pointer to lpfc hba data structure.
2360 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2361 * checks whether the FCF rediscovery wait timer is pending with the host
2362 * lock held before proceeding with disabling the timer and clearing the
2363 * wait timer pendig flag.
2365 void
2366 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2368 spin_lock_irq(&phba->hbalock);
2369 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2370 /* FCF rediscovery timer already fired or stopped */
2371 spin_unlock_irq(&phba->hbalock);
2372 return;
2374 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2375 /* Clear failover in progress flags */
2376 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2377 spin_unlock_irq(&phba->hbalock);
2381 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2382 * @phba: pointer to lpfc hba data structure.
2384 * This routine stops all the timers associated with a HBA. This function is
2385 * invoked before either putting a HBA offline or unloading the driver.
2387 void
2388 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2390 lpfc_stop_vport_timers(phba->pport);
2391 del_timer_sync(&phba->sli.mbox_tmo);
2392 del_timer_sync(&phba->fabric_block_timer);
2393 del_timer_sync(&phba->eratt_poll);
2394 del_timer_sync(&phba->hb_tmofunc);
2395 if (phba->sli_rev == LPFC_SLI_REV4) {
2396 del_timer_sync(&phba->rrq_tmr);
2397 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2399 phba->hb_outstanding = 0;
2401 switch (phba->pci_dev_grp) {
2402 case LPFC_PCI_DEV_LP:
2403 /* Stop any LightPulse device specific driver timers */
2404 del_timer_sync(&phba->fcp_poll_timer);
2405 break;
2406 case LPFC_PCI_DEV_OC:
2407 /* Stop any OneConnect device sepcific driver timers */
2408 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2409 break;
2410 default:
2411 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2412 "0297 Invalid device group (x%x)\n",
2413 phba->pci_dev_grp);
2414 break;
2416 return;
2420 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2421 * @phba: pointer to lpfc hba data structure.
2423 * This routine marks a HBA's management interface as blocked. Once the HBA's
2424 * management interface is marked as blocked, all the user space access to
2425 * the HBA, whether they are from sysfs interface or libdfc interface will
2426 * all be blocked. The HBA is set to block the management interface when the
2427 * driver prepares the HBA interface for online or offline.
2429 static void
2430 lpfc_block_mgmt_io(struct lpfc_hba * phba)
2432 unsigned long iflag;
2433 uint8_t actcmd = MBX_HEARTBEAT;
2434 unsigned long timeout;
2437 spin_lock_irqsave(&phba->hbalock, iflag);
2438 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2439 if (phba->sli.mbox_active)
2440 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2441 spin_unlock_irqrestore(&phba->hbalock, iflag);
2442 /* Determine how long we might wait for the active mailbox
2443 * command to be gracefully completed by firmware.
2445 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
2446 jiffies;
2447 /* Wait for the outstnading mailbox command to complete */
2448 while (phba->sli.mbox_active) {
2449 /* Check active mailbox complete status every 2ms */
2450 msleep(2);
2451 if (time_after(jiffies, timeout)) {
2452 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2453 "2813 Mgmt IO is Blocked %x "
2454 "- mbox cmd %x still active\n",
2455 phba->sli.sli_flag, actcmd);
2456 break;
2462 * lpfc_online - Initialize and bring a HBA online
2463 * @phba: pointer to lpfc hba data structure.
2465 * This routine initializes the HBA and brings a HBA online. During this
2466 * process, the management interface is blocked to prevent user space access
2467 * to the HBA interfering with the driver initialization.
2469 * Return codes
2470 * 0 - successful
2471 * 1 - failed
2474 lpfc_online(struct lpfc_hba *phba)
2476 struct lpfc_vport *vport;
2477 struct lpfc_vport **vports;
2478 int i;
2480 if (!phba)
2481 return 0;
2482 vport = phba->pport;
2484 if (!(vport->fc_flag & FC_OFFLINE_MODE))
2485 return 0;
2487 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2488 "0458 Bring Adapter online\n");
2490 lpfc_block_mgmt_io(phba);
2492 if (!lpfc_sli_queue_setup(phba)) {
2493 lpfc_unblock_mgmt_io(phba);
2494 return 1;
2497 if (phba->sli_rev == LPFC_SLI_REV4) {
2498 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2499 lpfc_unblock_mgmt_io(phba);
2500 return 1;
2502 } else {
2503 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2504 lpfc_unblock_mgmt_io(phba);
2505 return 1;
2509 vports = lpfc_create_vport_work_array(phba);
2510 if (vports != NULL)
2511 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2512 struct Scsi_Host *shost;
2513 shost = lpfc_shost_from_vport(vports[i]);
2514 spin_lock_irq(shost->host_lock);
2515 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2516 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2517 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2518 if (phba->sli_rev == LPFC_SLI_REV4)
2519 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2520 spin_unlock_irq(shost->host_lock);
2522 lpfc_destroy_vport_work_array(phba, vports);
2524 lpfc_unblock_mgmt_io(phba);
2525 return 0;
2529 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2530 * @phba: pointer to lpfc hba data structure.
2532 * This routine marks a HBA's management interface as not blocked. Once the
2533 * HBA's management interface is marked as not blocked, all the user space
2534 * access to the HBA, whether they are from sysfs interface or libdfc
2535 * interface will be allowed. The HBA is set to block the management interface
2536 * when the driver prepares the HBA interface for online or offline and then
2537 * set to unblock the management interface afterwards.
2539 void
2540 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2542 unsigned long iflag;
2544 spin_lock_irqsave(&phba->hbalock, iflag);
2545 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2546 spin_unlock_irqrestore(&phba->hbalock, iflag);
2550 * lpfc_offline_prep - Prepare a HBA to be brought offline
2551 * @phba: pointer to lpfc hba data structure.
2553 * This routine is invoked to prepare a HBA to be brought offline. It performs
2554 * unregistration login to all the nodes on all vports and flushes the mailbox
2555 * queue to make it ready to be brought offline.
2557 void
2558 lpfc_offline_prep(struct lpfc_hba * phba)
2560 struct lpfc_vport *vport = phba->pport;
2561 struct lpfc_nodelist *ndlp, *next_ndlp;
2562 struct lpfc_vport **vports;
2563 struct Scsi_Host *shost;
2564 int i;
2566 if (vport->fc_flag & FC_OFFLINE_MODE)
2567 return;
2569 lpfc_block_mgmt_io(phba);
2571 lpfc_linkdown(phba);
2573 /* Issue an unreg_login to all nodes on all vports */
2574 vports = lpfc_create_vport_work_array(phba);
2575 if (vports != NULL) {
2576 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2577 if (vports[i]->load_flag & FC_UNLOADING)
2578 continue;
2579 shost = lpfc_shost_from_vport(vports[i]);
2580 spin_lock_irq(shost->host_lock);
2581 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2582 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2583 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2584 spin_unlock_irq(shost->host_lock);
2586 shost = lpfc_shost_from_vport(vports[i]);
2587 list_for_each_entry_safe(ndlp, next_ndlp,
2588 &vports[i]->fc_nodes,
2589 nlp_listp) {
2590 if (!NLP_CHK_NODE_ACT(ndlp))
2591 continue;
2592 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2593 continue;
2594 if (ndlp->nlp_type & NLP_FABRIC) {
2595 lpfc_disc_state_machine(vports[i], ndlp,
2596 NULL, NLP_EVT_DEVICE_RECOVERY);
2597 lpfc_disc_state_machine(vports[i], ndlp,
2598 NULL, NLP_EVT_DEVICE_RM);
2600 spin_lock_irq(shost->host_lock);
2601 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2602 spin_unlock_irq(shost->host_lock);
2603 lpfc_unreg_rpi(vports[i], ndlp);
2607 lpfc_destroy_vport_work_array(phba, vports);
2609 lpfc_sli_mbox_sys_shutdown(phba);
2613 * lpfc_offline - Bring a HBA offline
2614 * @phba: pointer to lpfc hba data structure.
2616 * This routine actually brings a HBA offline. It stops all the timers
2617 * associated with the HBA, brings down the SLI layer, and eventually
2618 * marks the HBA as in offline state for the upper layer protocol.
2620 void
2621 lpfc_offline(struct lpfc_hba *phba)
2623 struct Scsi_Host *shost;
2624 struct lpfc_vport **vports;
2625 int i;
2627 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2628 return;
2630 /* stop port and all timers associated with this hba */
2631 lpfc_stop_port(phba);
2632 vports = lpfc_create_vport_work_array(phba);
2633 if (vports != NULL)
2634 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2635 lpfc_stop_vport_timers(vports[i]);
2636 lpfc_destroy_vport_work_array(phba, vports);
2637 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2638 "0460 Bring Adapter offline\n");
2639 /* Bring down the SLI Layer and cleanup. The HBA is offline
2640 now. */
2641 lpfc_sli_hba_down(phba);
2642 spin_lock_irq(&phba->hbalock);
2643 phba->work_ha = 0;
2644 spin_unlock_irq(&phba->hbalock);
2645 vports = lpfc_create_vport_work_array(phba);
2646 if (vports != NULL)
2647 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2648 shost = lpfc_shost_from_vport(vports[i]);
2649 spin_lock_irq(shost->host_lock);
2650 vports[i]->work_port_events = 0;
2651 vports[i]->fc_flag |= FC_OFFLINE_MODE;
2652 spin_unlock_irq(shost->host_lock);
2654 lpfc_destroy_vport_work_array(phba, vports);
2658 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2659 * @phba: pointer to lpfc hba data structure.
2661 * This routine is to free all the SCSI buffers and IOCBs from the driver
2662 * list back to kernel. It is called from lpfc_pci_remove_one to free
2663 * the internal resources before the device is removed from the system.
2665 * Return codes
2666 * 0 - successful (for now, it always returns 0)
2668 static int
2669 lpfc_scsi_free(struct lpfc_hba *phba)
2671 struct lpfc_scsi_buf *sb, *sb_next;
2672 struct lpfc_iocbq *io, *io_next;
2674 spin_lock_irq(&phba->hbalock);
2675 /* Release all the lpfc_scsi_bufs maintained by this host. */
2676 spin_lock(&phba->scsi_buf_list_lock);
2677 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2678 list_del(&sb->list);
2679 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2680 sb->dma_handle);
2681 kfree(sb);
2682 phba->total_scsi_bufs--;
2684 spin_unlock(&phba->scsi_buf_list_lock);
2686 /* Release all the lpfc_iocbq entries maintained by this host. */
2687 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2688 list_del(&io->list);
2689 kfree(io);
2690 phba->total_iocbq_bufs--;
2693 spin_unlock_irq(&phba->hbalock);
2694 return 0;
2698 * lpfc_create_port - Create an FC port
2699 * @phba: pointer to lpfc hba data structure.
2700 * @instance: a unique integer ID to this FC port.
2701 * @dev: pointer to the device data structure.
2703 * This routine creates a FC port for the upper layer protocol. The FC port
2704 * can be created on top of either a physical port or a virtual port provided
2705 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2706 * and associates the FC port created before adding the shost into the SCSI
2707 * layer.
2709 * Return codes
2710 * @vport - pointer to the virtual N_Port data structure.
2711 * NULL - port create failed.
2713 struct lpfc_vport *
2714 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2716 struct lpfc_vport *vport;
2717 struct Scsi_Host *shost;
2718 int error = 0;
2720 if (dev != &phba->pcidev->dev)
2721 shost = scsi_host_alloc(&lpfc_vport_template,
2722 sizeof(struct lpfc_vport));
2723 else
2724 shost = scsi_host_alloc(&lpfc_template,
2725 sizeof(struct lpfc_vport));
2726 if (!shost)
2727 goto out;
2729 vport = (struct lpfc_vport *) shost->hostdata;
2730 vport->phba = phba;
2731 vport->load_flag |= FC_LOADING;
2732 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2733 vport->fc_rscn_flush = 0;
2735 lpfc_get_vport_cfgparam(vport);
2736 shost->unique_id = instance;
2737 shost->max_id = LPFC_MAX_TARGET;
2738 shost->max_lun = vport->cfg_max_luns;
2739 shost->this_id = -1;
2740 shost->max_cmd_len = 16;
2741 if (phba->sli_rev == LPFC_SLI_REV4) {
2742 shost->dma_boundary =
2743 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
2744 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2748 * Set initial can_queue value since 0 is no longer supported and
2749 * scsi_add_host will fail. This will be adjusted later based on the
2750 * max xri value determined in hba setup.
2752 shost->can_queue = phba->cfg_hba_queue_depth - 10;
2753 if (dev != &phba->pcidev->dev) {
2754 shost->transportt = lpfc_vport_transport_template;
2755 vport->port_type = LPFC_NPIV_PORT;
2756 } else {
2757 shost->transportt = lpfc_transport_template;
2758 vport->port_type = LPFC_PHYSICAL_PORT;
2761 /* Initialize all internally managed lists. */
2762 INIT_LIST_HEAD(&vport->fc_nodes);
2763 INIT_LIST_HEAD(&vport->rcv_buffer_list);
2764 spin_lock_init(&vport->work_port_lock);
2766 init_timer(&vport->fc_disctmo);
2767 vport->fc_disctmo.function = lpfc_disc_timeout;
2768 vport->fc_disctmo.data = (unsigned long)vport;
2770 init_timer(&vport->fc_fdmitmo);
2771 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2772 vport->fc_fdmitmo.data = (unsigned long)vport;
2774 init_timer(&vport->els_tmofunc);
2775 vport->els_tmofunc.function = lpfc_els_timeout;
2776 vport->els_tmofunc.data = (unsigned long)vport;
2778 init_timer(&vport->delayed_disc_tmo);
2779 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
2780 vport->delayed_disc_tmo.data = (unsigned long)vport;
2782 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2783 if (error)
2784 goto out_put_shost;
2786 spin_lock_irq(&phba->hbalock);
2787 list_add_tail(&vport->listentry, &phba->port_list);
2788 spin_unlock_irq(&phba->hbalock);
2789 return vport;
2791 out_put_shost:
2792 scsi_host_put(shost);
2793 out:
2794 return NULL;
2798 * destroy_port - destroy an FC port
2799 * @vport: pointer to an lpfc virtual N_Port data structure.
2801 * This routine destroys a FC port from the upper layer protocol. All the
2802 * resources associated with the port are released.
2804 void
2805 destroy_port(struct lpfc_vport *vport)
2807 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2808 struct lpfc_hba *phba = vport->phba;
2810 lpfc_debugfs_terminate(vport);
2811 fc_remove_host(shost);
2812 scsi_remove_host(shost);
2814 spin_lock_irq(&phba->hbalock);
2815 list_del_init(&vport->listentry);
2816 spin_unlock_irq(&phba->hbalock);
2818 lpfc_cleanup(vport);
2819 return;
2823 * lpfc_get_instance - Get a unique integer ID
2825 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2826 * uses the kernel idr facility to perform the task.
2828 * Return codes:
2829 * instance - a unique integer ID allocated as the new instance.
2830 * -1 - lpfc get instance failed.
2833 lpfc_get_instance(void)
2835 int instance = 0;
2837 /* Assign an unused number */
2838 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2839 return -1;
2840 if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2841 return -1;
2842 return instance;
2846 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2847 * @shost: pointer to SCSI host data structure.
2848 * @time: elapsed time of the scan in jiffies.
2850 * This routine is called by the SCSI layer with a SCSI host to determine
2851 * whether the scan host is finished.
2853 * Note: there is no scan_start function as adapter initialization will have
2854 * asynchronously kicked off the link initialization.
2856 * Return codes
2857 * 0 - SCSI host scan is not over yet.
2858 * 1 - SCSI host scan is over.
2860 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2862 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2863 struct lpfc_hba *phba = vport->phba;
2864 int stat = 0;
2866 spin_lock_irq(shost->host_lock);
2868 if (vport->load_flag & FC_UNLOADING) {
2869 stat = 1;
2870 goto finished;
2872 if (time >= 30 * HZ) {
2873 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2874 "0461 Scanning longer than 30 "
2875 "seconds. Continuing initialization\n");
2876 stat = 1;
2877 goto finished;
2879 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2880 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2881 "0465 Link down longer than 15 "
2882 "seconds. Continuing initialization\n");
2883 stat = 1;
2884 goto finished;
2887 if (vport->port_state != LPFC_VPORT_READY)
2888 goto finished;
2889 if (vport->num_disc_nodes || vport->fc_prli_sent)
2890 goto finished;
2891 if (vport->fc_map_cnt == 0 && time < 2 * HZ)
2892 goto finished;
2893 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
2894 goto finished;
2896 stat = 1;
2898 finished:
2899 spin_unlock_irq(shost->host_lock);
2900 return stat;
2904 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2905 * @shost: pointer to SCSI host data structure.
2907 * This routine initializes a given SCSI host attributes on a FC port. The
2908 * SCSI host can be either on top of a physical port or a virtual port.
2910 void lpfc_host_attrib_init(struct Scsi_Host *shost)
2912 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2913 struct lpfc_hba *phba = vport->phba;
2915 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
2918 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2919 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
2920 fc_host_supported_classes(shost) = FC_COS_CLASS3;
2922 memset(fc_host_supported_fc4s(shost), 0,
2923 sizeof(fc_host_supported_fc4s(shost)));
2924 fc_host_supported_fc4s(shost)[2] = 1;
2925 fc_host_supported_fc4s(shost)[7] = 1;
2927 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2928 sizeof fc_host_symbolic_name(shost));
2930 fc_host_supported_speeds(shost) = 0;
2931 if (phba->lmt & LMT_16Gb)
2932 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
2933 if (phba->lmt & LMT_10Gb)
2934 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2935 if (phba->lmt & LMT_8Gb)
2936 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2937 if (phba->lmt & LMT_4Gb)
2938 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2939 if (phba->lmt & LMT_2Gb)
2940 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2941 if (phba->lmt & LMT_1Gb)
2942 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2944 fc_host_maxframe_size(shost) =
2945 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2946 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2948 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
2950 /* This value is also unchanging */
2951 memset(fc_host_active_fc4s(shost), 0,
2952 sizeof(fc_host_active_fc4s(shost)));
2953 fc_host_active_fc4s(shost)[2] = 1;
2954 fc_host_active_fc4s(shost)[7] = 1;
2956 fc_host_max_npiv_vports(shost) = phba->max_vpi;
2957 spin_lock_irq(shost->host_lock);
2958 vport->load_flag &= ~FC_LOADING;
2959 spin_unlock_irq(shost->host_lock);
2963 * lpfc_stop_port_s3 - Stop SLI3 device port
2964 * @phba: pointer to lpfc hba data structure.
2966 * This routine is invoked to stop an SLI3 device port, it stops the device
2967 * from generating interrupts and stops the device driver's timers for the
2968 * device.
2970 static void
2971 lpfc_stop_port_s3(struct lpfc_hba *phba)
2973 /* Clear all interrupt enable conditions */
2974 writel(0, phba->HCregaddr);
2975 readl(phba->HCregaddr); /* flush */
2976 /* Clear all pending interrupts */
2977 writel(0xffffffff, phba->HAregaddr);
2978 readl(phba->HAregaddr); /* flush */
2980 /* Reset some HBA SLI setup states */
2981 lpfc_stop_hba_timers(phba);
2982 phba->pport->work_port_events = 0;
2986 * lpfc_stop_port_s4 - Stop SLI4 device port
2987 * @phba: pointer to lpfc hba data structure.
2989 * This routine is invoked to stop an SLI4 device port, it stops the device
2990 * from generating interrupts and stops the device driver's timers for the
2991 * device.
2993 static void
2994 lpfc_stop_port_s4(struct lpfc_hba *phba)
2996 /* Reset some HBA SLI4 setup states */
2997 lpfc_stop_hba_timers(phba);
2998 phba->pport->work_port_events = 0;
2999 phba->sli4_hba.intr_enable = 0;
3003 * lpfc_stop_port - Wrapper function for stopping hba port
3004 * @phba: Pointer to HBA context object.
3006 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3007 * the API jump table function pointer from the lpfc_hba struct.
3009 void
3010 lpfc_stop_port(struct lpfc_hba *phba)
3012 phba->lpfc_stop_port(phba);
3016 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3017 * @phba: Pointer to hba for which this call is being executed.
3019 * This routine starts the timer waiting for the FCF rediscovery to complete.
3021 void
3022 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3024 unsigned long fcf_redisc_wait_tmo =
3025 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3026 /* Start fcf rediscovery wait period timer */
3027 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3028 spin_lock_irq(&phba->hbalock);
3029 /* Allow action to new fcf asynchronous event */
3030 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3031 /* Mark the FCF rediscovery pending state */
3032 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3033 spin_unlock_irq(&phba->hbalock);
3037 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3038 * @ptr: Map to lpfc_hba data structure pointer.
3040 * This routine is invoked when waiting for FCF table rediscover has been
3041 * timed out. If new FCF record(s) has (have) been discovered during the
3042 * wait period, a new FCF event shall be added to the FCOE async event
3043 * list, and then worker thread shall be waked up for processing from the
3044 * worker thread context.
3046 void
3047 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3049 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3051 /* Don't send FCF rediscovery event if timer cancelled */
3052 spin_lock_irq(&phba->hbalock);
3053 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3054 spin_unlock_irq(&phba->hbalock);
3055 return;
3057 /* Clear FCF rediscovery timer pending flag */
3058 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3059 /* FCF rediscovery event to worker thread */
3060 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3061 spin_unlock_irq(&phba->hbalock);
3062 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3063 "2776 FCF rediscover quiescent timer expired\n");
3064 /* wake up worker thread */
3065 lpfc_worker_wake_up(phba);
3069 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3070 * @phba: pointer to lpfc hba data structure.
3071 * @acqe_link: pointer to the async link completion queue entry.
3073 * This routine is to parse the SLI4 link-attention link fault code and
3074 * translate it into the base driver's read link attention mailbox command
3075 * status.
3077 * Return: Link-attention status in terms of base driver's coding.
3079 static uint16_t
3080 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3081 struct lpfc_acqe_link *acqe_link)
3083 uint16_t latt_fault;
3085 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3086 case LPFC_ASYNC_LINK_FAULT_NONE:
3087 case LPFC_ASYNC_LINK_FAULT_LOCAL:
3088 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3089 latt_fault = 0;
3090 break;
3091 default:
3092 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3093 "0398 Invalid link fault code: x%x\n",
3094 bf_get(lpfc_acqe_link_fault, acqe_link));
3095 latt_fault = MBXERR_ERROR;
3096 break;
3098 return latt_fault;
3102 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3103 * @phba: pointer to lpfc hba data structure.
3104 * @acqe_link: pointer to the async link completion queue entry.
3106 * This routine is to parse the SLI4 link attention type and translate it
3107 * into the base driver's link attention type coding.
3109 * Return: Link attention type in terms of base driver's coding.
3111 static uint8_t
3112 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3113 struct lpfc_acqe_link *acqe_link)
3115 uint8_t att_type;
3117 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3118 case LPFC_ASYNC_LINK_STATUS_DOWN:
3119 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3120 att_type = LPFC_ATT_LINK_DOWN;
3121 break;
3122 case LPFC_ASYNC_LINK_STATUS_UP:
3123 /* Ignore physical link up events - wait for logical link up */
3124 att_type = LPFC_ATT_RESERVED;
3125 break;
3126 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3127 att_type = LPFC_ATT_LINK_UP;
3128 break;
3129 default:
3130 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3131 "0399 Invalid link attention type: x%x\n",
3132 bf_get(lpfc_acqe_link_status, acqe_link));
3133 att_type = LPFC_ATT_RESERVED;
3134 break;
3136 return att_type;
3140 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3141 * @phba: pointer to lpfc hba data structure.
3142 * @acqe_link: pointer to the async link completion queue entry.
3144 * This routine is to parse the SLI4 link-attention link speed and translate
3145 * it into the base driver's link-attention link speed coding.
3147 * Return: Link-attention link speed in terms of base driver's coding.
3149 static uint8_t
3150 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3151 struct lpfc_acqe_link *acqe_link)
3153 uint8_t link_speed;
3155 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3156 case LPFC_ASYNC_LINK_SPEED_ZERO:
3157 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3158 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3159 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3160 break;
3161 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3162 link_speed = LPFC_LINK_SPEED_1GHZ;
3163 break;
3164 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3165 link_speed = LPFC_LINK_SPEED_10GHZ;
3166 break;
3167 default:
3168 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3169 "0483 Invalid link-attention link speed: x%x\n",
3170 bf_get(lpfc_acqe_link_speed, acqe_link));
3171 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3172 break;
3174 return link_speed;
3178 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3179 * @phba: pointer to lpfc hba data structure.
3180 * @acqe_link: pointer to the async link completion queue entry.
3182 * This routine is to handle the SLI4 asynchronous FCoE link event.
3184 static void
3185 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3186 struct lpfc_acqe_link *acqe_link)
3188 struct lpfc_dmabuf *mp;
3189 LPFC_MBOXQ_t *pmb;
3190 MAILBOX_t *mb;
3191 struct lpfc_mbx_read_top *la;
3192 uint8_t att_type;
3193 int rc;
3195 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3196 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3197 return;
3198 phba->fcoe_eventtag = acqe_link->event_tag;
3199 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3200 if (!pmb) {
3201 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3202 "0395 The mboxq allocation failed\n");
3203 return;
3205 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3206 if (!mp) {
3207 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3208 "0396 The lpfc_dmabuf allocation failed\n");
3209 goto out_free_pmb;
3211 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3212 if (!mp->virt) {
3213 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3214 "0397 The mbuf allocation failed\n");
3215 goto out_free_dmabuf;
3218 /* Cleanup any outstanding ELS commands */
3219 lpfc_els_flush_all_cmd(phba);
3221 /* Block ELS IOCBs until we have done process link event */
3222 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3224 /* Update link event statistics */
3225 phba->sli.slistat.link_event++;
3227 /* Create lpfc_handle_latt mailbox command from link ACQE */
3228 lpfc_read_topology(phba, pmb, mp);
3229 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3230 pmb->vport = phba->pport;
3232 /* Keep the link status for extra SLI4 state machine reference */
3233 phba->sli4_hba.link_state.speed =
3234 bf_get(lpfc_acqe_link_speed, acqe_link);
3235 phba->sli4_hba.link_state.duplex =
3236 bf_get(lpfc_acqe_link_duplex, acqe_link);
3237 phba->sli4_hba.link_state.status =
3238 bf_get(lpfc_acqe_link_status, acqe_link);
3239 phba->sli4_hba.link_state.type =
3240 bf_get(lpfc_acqe_link_type, acqe_link);
3241 phba->sli4_hba.link_state.number =
3242 bf_get(lpfc_acqe_link_number, acqe_link);
3243 phba->sli4_hba.link_state.fault =
3244 bf_get(lpfc_acqe_link_fault, acqe_link);
3245 phba->sli4_hba.link_state.logical_speed =
3246 bf_get(lpfc_acqe_logical_link_speed, acqe_link);
3247 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3248 "2900 Async FC/FCoE Link event - Speed:%dGBit "
3249 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3250 "Logical speed:%dMbps Fault:%d\n",
3251 phba->sli4_hba.link_state.speed,
3252 phba->sli4_hba.link_state.topology,
3253 phba->sli4_hba.link_state.status,
3254 phba->sli4_hba.link_state.type,
3255 phba->sli4_hba.link_state.number,
3256 phba->sli4_hba.link_state.logical_speed * 10,
3257 phba->sli4_hba.link_state.fault);
3259 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3260 * topology info. Note: Optional for non FC-AL ports.
3262 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3263 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3264 if (rc == MBX_NOT_FINISHED)
3265 goto out_free_dmabuf;
3266 return;
3269 * For FCoE Mode: fill in all the topology information we need and call
3270 * the READ_TOPOLOGY completion routine to continue without actually
3271 * sending the READ_TOPOLOGY mailbox command to the port.
3273 /* Parse and translate status field */
3274 mb = &pmb->u.mb;
3275 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3277 /* Parse and translate link attention fields */
3278 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3279 la->eventTag = acqe_link->event_tag;
3280 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3281 bf_set(lpfc_mbx_read_top_link_spd, la,
3282 lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3284 /* Fake the the following irrelvant fields */
3285 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3286 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3287 bf_set(lpfc_mbx_read_top_il, la, 0);
3288 bf_set(lpfc_mbx_read_top_pb, la, 0);
3289 bf_set(lpfc_mbx_read_top_fa, la, 0);
3290 bf_set(lpfc_mbx_read_top_mm, la, 0);
3292 /* Invoke the lpfc_handle_latt mailbox command callback function */
3293 lpfc_mbx_cmpl_read_topology(phba, pmb);
3295 return;
3297 out_free_dmabuf:
3298 kfree(mp);
3299 out_free_pmb:
3300 mempool_free(pmb, phba->mbox_mem_pool);
3304 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3305 * @phba: pointer to lpfc hba data structure.
3306 * @acqe_fc: pointer to the async fc completion queue entry.
3308 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3309 * that the event was received and then issue a read_topology mailbox command so
3310 * that the rest of the driver will treat it the same as SLI3.
3312 static void
3313 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3315 struct lpfc_dmabuf *mp;
3316 LPFC_MBOXQ_t *pmb;
3317 int rc;
3319 if (bf_get(lpfc_trailer_type, acqe_fc) !=
3320 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3321 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3322 "2895 Non FC link Event detected.(%d)\n",
3323 bf_get(lpfc_trailer_type, acqe_fc));
3324 return;
3326 /* Keep the link status for extra SLI4 state machine reference */
3327 phba->sli4_hba.link_state.speed =
3328 bf_get(lpfc_acqe_fc_la_speed, acqe_fc);
3329 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3330 phba->sli4_hba.link_state.topology =
3331 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3332 phba->sli4_hba.link_state.status =
3333 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3334 phba->sli4_hba.link_state.type =
3335 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3336 phba->sli4_hba.link_state.number =
3337 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3338 phba->sli4_hba.link_state.fault =
3339 bf_get(lpfc_acqe_link_fault, acqe_fc);
3340 phba->sli4_hba.link_state.logical_speed =
3341 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
3342 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3343 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3344 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3345 "%dMbps Fault:%d\n",
3346 phba->sli4_hba.link_state.speed,
3347 phba->sli4_hba.link_state.topology,
3348 phba->sli4_hba.link_state.status,
3349 phba->sli4_hba.link_state.type,
3350 phba->sli4_hba.link_state.number,
3351 phba->sli4_hba.link_state.logical_speed * 10,
3352 phba->sli4_hba.link_state.fault);
3353 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3354 if (!pmb) {
3355 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3356 "2897 The mboxq allocation failed\n");
3357 return;
3359 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3360 if (!mp) {
3361 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3362 "2898 The lpfc_dmabuf allocation failed\n");
3363 goto out_free_pmb;
3365 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3366 if (!mp->virt) {
3367 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3368 "2899 The mbuf allocation failed\n");
3369 goto out_free_dmabuf;
3372 /* Cleanup any outstanding ELS commands */
3373 lpfc_els_flush_all_cmd(phba);
3375 /* Block ELS IOCBs until we have done process link event */
3376 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3378 /* Update link event statistics */
3379 phba->sli.slistat.link_event++;
3381 /* Create lpfc_handle_latt mailbox command from link ACQE */
3382 lpfc_read_topology(phba, pmb, mp);
3383 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3384 pmb->vport = phba->pport;
3386 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3387 if (rc == MBX_NOT_FINISHED)
3388 goto out_free_dmabuf;
3389 return;
3391 out_free_dmabuf:
3392 kfree(mp);
3393 out_free_pmb:
3394 mempool_free(pmb, phba->mbox_mem_pool);
3398 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3399 * @phba: pointer to lpfc hba data structure.
3400 * @acqe_fc: pointer to the async SLI completion queue entry.
3402 * This routine is to handle the SLI4 asynchronous SLI events.
3404 static void
3405 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3407 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3408 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3409 "x%08x SLI Event Type:%d",
3410 acqe_sli->event_data1, acqe_sli->event_data2,
3411 bf_get(lpfc_trailer_type, acqe_sli));
3412 return;
3416 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3417 * @vport: pointer to vport data structure.
3419 * This routine is to perform Clear Virtual Link (CVL) on a vport in
3420 * response to a CVL event.
3422 * Return the pointer to the ndlp with the vport if successful, otherwise
3423 * return NULL.
3425 static struct lpfc_nodelist *
3426 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3428 struct lpfc_nodelist *ndlp;
3429 struct Scsi_Host *shost;
3430 struct lpfc_hba *phba;
3432 if (!vport)
3433 return NULL;
3434 phba = vport->phba;
3435 if (!phba)
3436 return NULL;
3437 ndlp = lpfc_findnode_did(vport, Fabric_DID);
3438 if (!ndlp) {
3439 /* Cannot find existing Fabric ndlp, so allocate a new one */
3440 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3441 if (!ndlp)
3442 return 0;
3443 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3444 /* Set the node type */
3445 ndlp->nlp_type |= NLP_FABRIC;
3446 /* Put ndlp onto node list */
3447 lpfc_enqueue_node(vport, ndlp);
3448 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3449 /* re-setup ndlp without removing from node list */
3450 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3451 if (!ndlp)
3452 return 0;
3454 if ((phba->pport->port_state < LPFC_FLOGI) &&
3455 (phba->pport->port_state != LPFC_VPORT_FAILED))
3456 return NULL;
3457 /* If virtual link is not yet instantiated ignore CVL */
3458 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
3459 && (vport->port_state != LPFC_VPORT_FAILED))
3460 return NULL;
3461 shost = lpfc_shost_from_vport(vport);
3462 if (!shost)
3463 return NULL;
3464 lpfc_linkdown_port(vport);
3465 lpfc_cleanup_pending_mbox(vport);
3466 spin_lock_irq(shost->host_lock);
3467 vport->fc_flag |= FC_VPORT_CVL_RCVD;
3468 spin_unlock_irq(shost->host_lock);
3470 return ndlp;
3474 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3475 * @vport: pointer to lpfc hba data structure.
3477 * This routine is to perform Clear Virtual Link (CVL) on all vports in
3478 * response to a FCF dead event.
3480 static void
3481 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3483 struct lpfc_vport **vports;
3484 int i;
3486 vports = lpfc_create_vport_work_array(phba);
3487 if (vports)
3488 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3489 lpfc_sli4_perform_vport_cvl(vports[i]);
3490 lpfc_destroy_vport_work_array(phba, vports);
3494 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
3495 * @phba: pointer to lpfc hba data structure.
3496 * @acqe_link: pointer to the async fcoe completion queue entry.
3498 * This routine is to handle the SLI4 asynchronous fcoe event.
3500 static void
3501 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
3502 struct lpfc_acqe_fip *acqe_fip)
3504 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
3505 int rc;
3506 struct lpfc_vport *vport;
3507 struct lpfc_nodelist *ndlp;
3508 struct Scsi_Host *shost;
3509 int active_vlink_present;
3510 struct lpfc_vport **vports;
3511 int i;
3513 phba->fc_eventTag = acqe_fip->event_tag;
3514 phba->fcoe_eventtag = acqe_fip->event_tag;
3515 switch (event_type) {
3516 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
3517 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
3518 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
3519 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3520 LOG_DISCOVERY,
3521 "2546 New FCF event, evt_tag:x%x, "
3522 "index:x%x\n",
3523 acqe_fip->event_tag,
3524 acqe_fip->index);
3525 else
3526 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3527 LOG_DISCOVERY,
3528 "2788 FCF param modified event, "
3529 "evt_tag:x%x, index:x%x\n",
3530 acqe_fip->event_tag,
3531 acqe_fip->index);
3532 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3534 * During period of FCF discovery, read the FCF
3535 * table record indexed by the event to update
3536 * FCF roundrobin failover eligible FCF bmask.
3538 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3539 LOG_DISCOVERY,
3540 "2779 Read FCF (x%x) for updating "
3541 "roundrobin FCF failover bmask\n",
3542 acqe_fip->index);
3543 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
3546 /* If the FCF discovery is in progress, do nothing. */
3547 spin_lock_irq(&phba->hbalock);
3548 if (phba->hba_flag & FCF_TS_INPROG) {
3549 spin_unlock_irq(&phba->hbalock);
3550 break;
3552 /* If fast FCF failover rescan event is pending, do nothing */
3553 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3554 spin_unlock_irq(&phba->hbalock);
3555 break;
3558 /* If the FCF has been in discovered state, do nothing. */
3559 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
3560 spin_unlock_irq(&phba->hbalock);
3561 break;
3563 spin_unlock_irq(&phba->hbalock);
3565 /* Otherwise, scan the entire FCF table and re-discover SAN */
3566 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3567 "2770 Start FCF table scan per async FCF "
3568 "event, evt_tag:x%x, index:x%x\n",
3569 acqe_fip->event_tag, acqe_fip->index);
3570 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3571 LPFC_FCOE_FCF_GET_FIRST);
3572 if (rc)
3573 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3574 "2547 Issue FCF scan read FCF mailbox "
3575 "command failed (x%x)\n", rc);
3576 break;
3578 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
3579 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3580 "2548 FCF Table full count 0x%x tag 0x%x\n",
3581 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
3582 acqe_fip->event_tag);
3583 break;
3585 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
3586 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3587 "2549 FCF (x%x) disconnected from network, "
3588 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
3590 * If we are in the middle of FCF failover process, clear
3591 * the corresponding FCF bit in the roundrobin bitmap.
3593 spin_lock_irq(&phba->hbalock);
3594 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3595 spin_unlock_irq(&phba->hbalock);
3596 /* Update FLOGI FCF failover eligible FCF bmask */
3597 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
3598 break;
3600 spin_unlock_irq(&phba->hbalock);
3602 /* If the event is not for currently used fcf do nothing */
3603 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
3604 break;
3607 * Otherwise, request the port to rediscover the entire FCF
3608 * table for a fast recovery from case that the current FCF
3609 * is no longer valid as we are not in the middle of FCF
3610 * failover process already.
3612 spin_lock_irq(&phba->hbalock);
3613 /* Mark the fast failover process in progress */
3614 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
3615 spin_unlock_irq(&phba->hbalock);
3617 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3618 "2771 Start FCF fast failover process due to "
3619 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3620 "\n", acqe_fip->event_tag, acqe_fip->index);
3621 rc = lpfc_sli4_redisc_fcf_table(phba);
3622 if (rc) {
3623 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3624 LOG_DISCOVERY,
3625 "2772 Issue FCF rediscover mabilbox "
3626 "command failed, fail through to FCF "
3627 "dead event\n");
3628 spin_lock_irq(&phba->hbalock);
3629 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
3630 spin_unlock_irq(&phba->hbalock);
3632 * Last resort will fail over by treating this
3633 * as a link down to FCF registration.
3635 lpfc_sli4_fcf_dead_failthrough(phba);
3636 } else {
3637 /* Reset FCF roundrobin bmask for new discovery */
3638 lpfc_sli4_clear_fcf_rr_bmask(phba);
3640 * Handling fast FCF failover to a DEAD FCF event is
3641 * considered equalivant to receiving CVL to all vports.
3643 lpfc_sli4_perform_all_vport_cvl(phba);
3645 break;
3646 case LPFC_FIP_EVENT_TYPE_CVL:
3647 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3648 "2718 Clear Virtual Link Received for VPI 0x%x"
3649 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
3651 vport = lpfc_find_vport_by_vpid(phba,
3652 acqe_fip->index);
3653 ndlp = lpfc_sli4_perform_vport_cvl(vport);
3654 if (!ndlp)
3655 break;
3656 active_vlink_present = 0;
3658 vports = lpfc_create_vport_work_array(phba);
3659 if (vports) {
3660 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3661 i++) {
3662 if ((!(vports[i]->fc_flag &
3663 FC_VPORT_CVL_RCVD)) &&
3664 (vports[i]->port_state > LPFC_FDISC)) {
3665 active_vlink_present = 1;
3666 break;
3669 lpfc_destroy_vport_work_array(phba, vports);
3672 if (active_vlink_present) {
3674 * If there are other active VLinks present,
3675 * re-instantiate the Vlink using FDISC.
3677 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
3678 shost = lpfc_shost_from_vport(vport);
3679 spin_lock_irq(shost->host_lock);
3680 ndlp->nlp_flag |= NLP_DELAY_TMO;
3681 spin_unlock_irq(shost->host_lock);
3682 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3683 vport->port_state = LPFC_FDISC;
3684 } else {
3686 * Otherwise, we request port to rediscover
3687 * the entire FCF table for a fast recovery
3688 * from possible case that the current FCF
3689 * is no longer valid if we are not already
3690 * in the FCF failover process.
3692 spin_lock_irq(&phba->hbalock);
3693 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3694 spin_unlock_irq(&phba->hbalock);
3695 break;
3697 /* Mark the fast failover process in progress */
3698 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
3699 spin_unlock_irq(&phba->hbalock);
3700 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3701 LOG_DISCOVERY,
3702 "2773 Start FCF failover per CVL, "
3703 "evt_tag:x%x\n", acqe_fip->event_tag);
3704 rc = lpfc_sli4_redisc_fcf_table(phba);
3705 if (rc) {
3706 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3707 LOG_DISCOVERY,
3708 "2774 Issue FCF rediscover "
3709 "mabilbox command failed, "
3710 "through to CVL event\n");
3711 spin_lock_irq(&phba->hbalock);
3712 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
3713 spin_unlock_irq(&phba->hbalock);
3715 * Last resort will be re-try on the
3716 * the current registered FCF entry.
3718 lpfc_retry_pport_discovery(phba);
3719 } else
3721 * Reset FCF roundrobin bmask for new
3722 * discovery.
3724 lpfc_sli4_clear_fcf_rr_bmask(phba);
3726 break;
3727 default:
3728 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3729 "0288 Unknown FCoE event type 0x%x event tag "
3730 "0x%x\n", event_type, acqe_fip->event_tag);
3731 break;
3736 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3737 * @phba: pointer to lpfc hba data structure.
3738 * @acqe_link: pointer to the async dcbx completion queue entry.
3740 * This routine is to handle the SLI4 asynchronous dcbx event.
3742 static void
3743 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3744 struct lpfc_acqe_dcbx *acqe_dcbx)
3746 phba->fc_eventTag = acqe_dcbx->event_tag;
3747 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3748 "0290 The SLI4 DCBX asynchronous event is not "
3749 "handled yet\n");
3753 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3754 * @phba: pointer to lpfc hba data structure.
3755 * @acqe_link: pointer to the async grp5 completion queue entry.
3757 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3758 * is an asynchronous notified of a logical link speed change. The Port
3759 * reports the logical link speed in units of 10Mbps.
3761 static void
3762 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
3763 struct lpfc_acqe_grp5 *acqe_grp5)
3765 uint16_t prev_ll_spd;
3767 phba->fc_eventTag = acqe_grp5->event_tag;
3768 phba->fcoe_eventtag = acqe_grp5->event_tag;
3769 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
3770 phba->sli4_hba.link_state.logical_speed =
3771 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
3772 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3773 "2789 GRP5 Async Event: Updating logical link speed "
3774 "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
3775 (phba->sli4_hba.link_state.logical_speed*10));
3779 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3780 * @phba: pointer to lpfc hba data structure.
3782 * This routine is invoked by the worker thread to process all the pending
3783 * SLI4 asynchronous events.
3785 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3787 struct lpfc_cq_event *cq_event;
3789 /* First, declare the async event has been handled */
3790 spin_lock_irq(&phba->hbalock);
3791 phba->hba_flag &= ~ASYNC_EVENT;
3792 spin_unlock_irq(&phba->hbalock);
3793 /* Now, handle all the async events */
3794 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3795 /* Get the first event from the head of the event queue */
3796 spin_lock_irq(&phba->hbalock);
3797 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3798 cq_event, struct lpfc_cq_event, list);
3799 spin_unlock_irq(&phba->hbalock);
3800 /* Process the asynchronous event */
3801 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3802 case LPFC_TRAILER_CODE_LINK:
3803 lpfc_sli4_async_link_evt(phba,
3804 &cq_event->cqe.acqe_link);
3805 break;
3806 case LPFC_TRAILER_CODE_FCOE:
3807 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
3808 break;
3809 case LPFC_TRAILER_CODE_DCBX:
3810 lpfc_sli4_async_dcbx_evt(phba,
3811 &cq_event->cqe.acqe_dcbx);
3812 break;
3813 case LPFC_TRAILER_CODE_GRP5:
3814 lpfc_sli4_async_grp5_evt(phba,
3815 &cq_event->cqe.acqe_grp5);
3816 break;
3817 case LPFC_TRAILER_CODE_FC:
3818 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
3819 break;
3820 case LPFC_TRAILER_CODE_SLI:
3821 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
3822 break;
3823 default:
3824 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3825 "1804 Invalid asynchrous event code: "
3826 "x%x\n", bf_get(lpfc_trailer_code,
3827 &cq_event->cqe.mcqe_cmpl));
3828 break;
3830 /* Free the completion event processed to the free pool */
3831 lpfc_sli4_cq_event_release(phba, cq_event);
3836 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3837 * @phba: pointer to lpfc hba data structure.
3839 * This routine is invoked by the worker thread to process FCF table
3840 * rediscovery pending completion event.
3842 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3844 int rc;
3846 spin_lock_irq(&phba->hbalock);
3847 /* Clear FCF rediscovery timeout event */
3848 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3849 /* Clear driver fast failover FCF record flag */
3850 phba->fcf.failover_rec.flag = 0;
3851 /* Set state for FCF fast failover */
3852 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3853 spin_unlock_irq(&phba->hbalock);
3855 /* Scan FCF table from the first entry to re-discover SAN */
3856 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3857 "2777 Start post-quiescent FCF table scan\n");
3858 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
3859 if (rc)
3860 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3861 "2747 Issue FCF scan read FCF mailbox "
3862 "command failed 0x%x\n", rc);
3866 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3867 * @phba: pointer to lpfc hba data structure.
3868 * @dev_grp: The HBA PCI-Device group number.
3870 * This routine is invoked to set up the per HBA PCI-Device group function
3871 * API jump table entries.
3873 * Return: 0 if success, otherwise -ENODEV
3876 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3878 int rc;
3880 /* Set up lpfc PCI-device group */
3881 phba->pci_dev_grp = dev_grp;
3883 /* The LPFC_PCI_DEV_OC uses SLI4 */
3884 if (dev_grp == LPFC_PCI_DEV_OC)
3885 phba->sli_rev = LPFC_SLI_REV4;
3887 /* Set up device INIT API function jump table */
3888 rc = lpfc_init_api_table_setup(phba, dev_grp);
3889 if (rc)
3890 return -ENODEV;
3891 /* Set up SCSI API function jump table */
3892 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3893 if (rc)
3894 return -ENODEV;
3895 /* Set up SLI API function jump table */
3896 rc = lpfc_sli_api_table_setup(phba, dev_grp);
3897 if (rc)
3898 return -ENODEV;
3899 /* Set up MBOX API function jump table */
3900 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3901 if (rc)
3902 return -ENODEV;
3904 return 0;
3908 * lpfc_log_intr_mode - Log the active interrupt mode
3909 * @phba: pointer to lpfc hba data structure.
3910 * @intr_mode: active interrupt mode adopted.
3912 * This routine it invoked to log the currently used active interrupt mode
3913 * to the device.
3915 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3917 switch (intr_mode) {
3918 case 0:
3919 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3920 "0470 Enable INTx interrupt mode.\n");
3921 break;
3922 case 1:
3923 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3924 "0481 Enabled MSI interrupt mode.\n");
3925 break;
3926 case 2:
3927 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3928 "0480 Enabled MSI-X interrupt mode.\n");
3929 break;
3930 default:
3931 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3932 "0482 Illegal interrupt mode.\n");
3933 break;
3935 return;
3939 * lpfc_enable_pci_dev - Enable a generic PCI device.
3940 * @phba: pointer to lpfc hba data structure.
3942 * This routine is invoked to enable the PCI device that is common to all
3943 * PCI devices.
3945 * Return codes
3946 * 0 - successful
3947 * other values - error
3949 static int
3950 lpfc_enable_pci_dev(struct lpfc_hba *phba)
3952 struct pci_dev *pdev;
3953 int bars;
3955 /* Obtain PCI device reference */
3956 if (!phba->pcidev)
3957 goto out_error;
3958 else
3959 pdev = phba->pcidev;
3960 /* Select PCI BARs */
3961 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3962 /* Enable PCI device */
3963 if (pci_enable_device_mem(pdev))
3964 goto out_error;
3965 /* Request PCI resource for the device */
3966 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3967 goto out_disable_device;
3968 /* Set up device as PCI master and save state for EEH */
3969 pci_set_master(pdev);
3970 pci_try_set_mwi(pdev);
3971 pci_save_state(pdev);
3973 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
3974 if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
3975 pdev->needs_freset = 1;
3977 return 0;
3979 out_disable_device:
3980 pci_disable_device(pdev);
3981 out_error:
3982 return -ENODEV;
3986 * lpfc_disable_pci_dev - Disable a generic PCI device.
3987 * @phba: pointer to lpfc hba data structure.
3989 * This routine is invoked to disable the PCI device that is common to all
3990 * PCI devices.
3992 static void
3993 lpfc_disable_pci_dev(struct lpfc_hba *phba)
3995 struct pci_dev *pdev;
3996 int bars;
3998 /* Obtain PCI device reference */
3999 if (!phba->pcidev)
4000 return;
4001 else
4002 pdev = phba->pcidev;
4003 /* Select PCI BARs */
4004 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4005 /* Release PCI resource and disable PCI device */
4006 pci_release_selected_regions(pdev, bars);
4007 pci_disable_device(pdev);
4008 /* Null out PCI private reference to driver */
4009 pci_set_drvdata(pdev, NULL);
4011 return;
4015 * lpfc_reset_hba - Reset a hba
4016 * @phba: pointer to lpfc hba data structure.
4018 * This routine is invoked to reset a hba device. It brings the HBA
4019 * offline, performs a board restart, and then brings the board back
4020 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4021 * on outstanding mailbox commands.
4023 void
4024 lpfc_reset_hba(struct lpfc_hba *phba)
4026 /* If resets are disabled then set error state and return. */
4027 if (!phba->cfg_enable_hba_reset) {
4028 phba->link_state = LPFC_HBA_ERROR;
4029 return;
4031 lpfc_offline_prep(phba);
4032 lpfc_offline(phba);
4033 lpfc_sli_brdrestart(phba);
4034 lpfc_online(phba);
4035 lpfc_unblock_mgmt_io(phba);
4039 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4040 * @phba: pointer to lpfc hba data structure.
4042 * This function enables the PCI SR-IOV virtual functions to a physical
4043 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4044 * enable the number of virtual functions to the physical function. As
4045 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4046 * API call does not considered as an error condition for most of the device.
4048 uint16_t
4049 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4051 struct pci_dev *pdev = phba->pcidev;
4052 uint16_t nr_virtfn;
4053 int pos;
4055 if (!pdev->is_physfn)
4056 return 0;
4058 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4059 if (pos == 0)
4060 return 0;
4062 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4063 return nr_virtfn;
4067 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4068 * @phba: pointer to lpfc hba data structure.
4069 * @nr_vfn: number of virtual functions to be enabled.
4071 * This function enables the PCI SR-IOV virtual functions to a physical
4072 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4073 * enable the number of virtual functions to the physical function. As
4074 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4075 * API call does not considered as an error condition for most of the device.
4078 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4080 struct pci_dev *pdev = phba->pcidev;
4081 uint16_t max_nr_vfn;
4082 int rc;
4084 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4085 if (nr_vfn > max_nr_vfn) {
4086 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4087 "3057 Requested vfs (%d) greater than "
4088 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4089 return -EINVAL;
4092 rc = pci_enable_sriov(pdev, nr_vfn);
4093 if (rc) {
4094 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4095 "2806 Failed to enable sriov on this device "
4096 "with vfn number nr_vf:%d, rc:%d\n",
4097 nr_vfn, rc);
4098 } else
4099 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4100 "2807 Successful enable sriov on this device "
4101 "with vfn number nr_vf:%d\n", nr_vfn);
4102 return rc;
4106 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4107 * @phba: pointer to lpfc hba data structure.
4109 * This routine is invoked to set up the driver internal resources specific to
4110 * support the SLI-3 HBA device it attached to.
4112 * Return codes
4113 * 0 - successful
4114 * other values - error
4116 static int
4117 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4119 struct lpfc_sli *psli;
4120 int rc;
4123 * Initialize timers used by driver
4126 /* Heartbeat timer */
4127 init_timer(&phba->hb_tmofunc);
4128 phba->hb_tmofunc.function = lpfc_hb_timeout;
4129 phba->hb_tmofunc.data = (unsigned long)phba;
4131 psli = &phba->sli;
4132 /* MBOX heartbeat timer */
4133 init_timer(&psli->mbox_tmo);
4134 psli->mbox_tmo.function = lpfc_mbox_timeout;
4135 psli->mbox_tmo.data = (unsigned long) phba;
4136 /* FCP polling mode timer */
4137 init_timer(&phba->fcp_poll_timer);
4138 phba->fcp_poll_timer.function = lpfc_poll_timeout;
4139 phba->fcp_poll_timer.data = (unsigned long) phba;
4140 /* Fabric block timer */
4141 init_timer(&phba->fabric_block_timer);
4142 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4143 phba->fabric_block_timer.data = (unsigned long) phba;
4144 /* EA polling mode timer */
4145 init_timer(&phba->eratt_poll);
4146 phba->eratt_poll.function = lpfc_poll_eratt;
4147 phba->eratt_poll.data = (unsigned long) phba;
4149 /* Host attention work mask setup */
4150 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4151 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4153 /* Get all the module params for configuring this host */
4154 lpfc_get_cfgparam(phba);
4155 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4156 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4157 /* check for menlo minimum sg count */
4158 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4159 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4163 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4164 * used to create the sg_dma_buf_pool must be dynamically calculated.
4165 * 2 segments are added since the IOCB needs a command and response bde.
4167 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4168 sizeof(struct fcp_rsp) +
4169 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4171 if (phba->cfg_enable_bg) {
4172 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4173 phba->cfg_sg_dma_buf_size +=
4174 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
4177 /* Also reinitialize the host templates with new values. */
4178 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4179 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4181 phba->max_vpi = LPFC_MAX_VPI;
4182 /* This will be set to correct value after config_port mbox */
4183 phba->max_vports = 0;
4186 * Initialize the SLI Layer to run with lpfc HBAs.
4188 lpfc_sli_setup(phba);
4189 lpfc_sli_queue_setup(phba);
4191 /* Allocate device driver memory */
4192 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4193 return -ENOMEM;
4196 * Enable sr-iov virtual functions if supported and configured
4197 * through the module parameter.
4199 if (phba->cfg_sriov_nr_virtfn > 0) {
4200 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4201 phba->cfg_sriov_nr_virtfn);
4202 if (rc) {
4203 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4204 "2808 Requested number of SR-IOV "
4205 "virtual functions (%d) is not "
4206 "supported\n",
4207 phba->cfg_sriov_nr_virtfn);
4208 phba->cfg_sriov_nr_virtfn = 0;
4212 return 0;
4216 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4217 * @phba: pointer to lpfc hba data structure.
4219 * This routine is invoked to unset the driver internal resources set up
4220 * specific for supporting the SLI-3 HBA device it attached to.
4222 static void
4223 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4225 /* Free device driver memory allocated */
4226 lpfc_mem_free_all(phba);
4228 return;
4232 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4233 * @phba: pointer to lpfc hba data structure.
4235 * This routine is invoked to set up the driver internal resources specific to
4236 * support the SLI-4 HBA device it attached to.
4238 * Return codes
4239 * 0 - successful
4240 * other values - error
4242 static int
4243 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4245 struct lpfc_sli *psli;
4246 LPFC_MBOXQ_t *mboxq;
4247 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
4248 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4249 struct lpfc_mqe *mqe;
4250 int longs, sli_family;
4252 /* Before proceed, wait for POST done and device ready */
4253 rc = lpfc_sli4_post_status_check(phba);
4254 if (rc)
4255 return -ENODEV;
4258 * Initialize timers used by driver
4261 /* Heartbeat timer */
4262 init_timer(&phba->hb_tmofunc);
4263 phba->hb_tmofunc.function = lpfc_hb_timeout;
4264 phba->hb_tmofunc.data = (unsigned long)phba;
4265 init_timer(&phba->rrq_tmr);
4266 phba->rrq_tmr.function = lpfc_rrq_timeout;
4267 phba->rrq_tmr.data = (unsigned long)phba;
4269 psli = &phba->sli;
4270 /* MBOX heartbeat timer */
4271 init_timer(&psli->mbox_tmo);
4272 psli->mbox_tmo.function = lpfc_mbox_timeout;
4273 psli->mbox_tmo.data = (unsigned long) phba;
4274 /* Fabric block timer */
4275 init_timer(&phba->fabric_block_timer);
4276 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4277 phba->fabric_block_timer.data = (unsigned long) phba;
4278 /* EA polling mode timer */
4279 init_timer(&phba->eratt_poll);
4280 phba->eratt_poll.function = lpfc_poll_eratt;
4281 phba->eratt_poll.data = (unsigned long) phba;
4282 /* FCF rediscover timer */
4283 init_timer(&phba->fcf.redisc_wait);
4284 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4285 phba->fcf.redisc_wait.data = (unsigned long)phba;
4288 * Control structure for handling external multi-buffer mailbox
4289 * command pass-through.
4291 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
4292 sizeof(struct lpfc_mbox_ext_buf_ctx));
4293 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4296 * We need to do a READ_CONFIG mailbox command here before
4297 * calling lpfc_get_cfgparam. For VFs this will report the
4298 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4299 * All of the resources allocated
4300 * for this Port are tied to these values.
4302 /* Get all the module params for configuring this host */
4303 lpfc_get_cfgparam(phba);
4304 phba->max_vpi = LPFC_MAX_VPI;
4305 /* This will be set to correct value after the read_config mbox */
4306 phba->max_vports = 0;
4308 /* Program the default value of vlan_id and fc_map */
4309 phba->valid_vlan = 0;
4310 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4311 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4312 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4315 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4316 * used to create the sg_dma_buf_pool must be dynamically calculated.
4317 * 2 segments are added since the IOCB needs a command and response bde.
4318 * To insure that the scsi sgl does not cross a 4k page boundary only
4319 * sgl sizes of must be a power of 2.
4321 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4322 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
4324 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
4325 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4326 switch (sli_family) {
4327 case LPFC_SLI_INTF_FAMILY_BE2:
4328 case LPFC_SLI_INTF_FAMILY_BE3:
4329 /* There is a single hint for BE - 2 pages per BPL. */
4330 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
4331 LPFC_SLI_INTF_SLI_HINT1_1)
4332 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4333 break;
4334 case LPFC_SLI_INTF_FAMILY_LNCR_A0:
4335 case LPFC_SLI_INTF_FAMILY_LNCR_B0:
4336 default:
4337 break;
4339 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4340 dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4341 dma_buf_size = dma_buf_size << 1)
4343 if (dma_buf_size == max_buf_size)
4344 phba->cfg_sg_seg_cnt = (dma_buf_size -
4345 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4346 (2 * sizeof(struct sli4_sge))) /
4347 sizeof(struct sli4_sge);
4348 phba->cfg_sg_dma_buf_size = dma_buf_size;
4350 /* Initialize buffer queue management fields */
4351 hbq_count = lpfc_sli_hbq_count();
4352 for (i = 0; i < hbq_count; ++i)
4353 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4354 INIT_LIST_HEAD(&phba->rb_pend_list);
4355 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4356 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
4359 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4361 /* Initialize the Abort scsi buffer list used by driver */
4362 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4363 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4364 /* This abort list used by worker thread */
4365 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
4368 * Initialize driver internal slow-path work queues
4371 /* Driver internel slow-path CQ Event pool */
4372 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4373 /* Response IOCB work queue list */
4374 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4375 /* Asynchronous event CQ Event work queue list */
4376 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4377 /* Fast-path XRI aborted CQ Event work queue list */
4378 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4379 /* Slow-path XRI aborted CQ Event work queue list */
4380 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4381 /* Receive queue CQ Event work queue list */
4382 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4384 /* Initialize extent block lists. */
4385 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
4386 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
4387 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
4388 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
4390 /* Initialize the driver internal SLI layer lists. */
4391 lpfc_sli_setup(phba);
4392 lpfc_sli_queue_setup(phba);
4394 /* Allocate device driver memory */
4395 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4396 if (rc)
4397 return -ENOMEM;
4399 /* IF Type 2 ports get initialized now. */
4400 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4401 LPFC_SLI_INTF_IF_TYPE_2) {
4402 rc = lpfc_pci_function_reset(phba);
4403 if (unlikely(rc))
4404 return -ENODEV;
4407 /* Create the bootstrap mailbox command */
4408 rc = lpfc_create_bootstrap_mbox(phba);
4409 if (unlikely(rc))
4410 goto out_free_mem;
4412 /* Set up the host's endian order with the device. */
4413 rc = lpfc_setup_endian_order(phba);
4414 if (unlikely(rc))
4415 goto out_free_bsmbx;
4417 /* Set up the hba's configuration parameters. */
4418 rc = lpfc_sli4_read_config(phba);
4419 if (unlikely(rc))
4420 goto out_free_bsmbx;
4422 /* IF Type 0 ports get initialized now. */
4423 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4424 LPFC_SLI_INTF_IF_TYPE_0) {
4425 rc = lpfc_pci_function_reset(phba);
4426 if (unlikely(rc))
4427 goto out_free_bsmbx;
4430 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4431 GFP_KERNEL);
4432 if (!mboxq) {
4433 rc = -ENOMEM;
4434 goto out_free_bsmbx;
4437 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
4438 lpfc_supported_pages(mboxq);
4439 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4440 if (!rc) {
4441 mqe = &mboxq->u.mqe;
4442 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4443 LPFC_MAX_SUPPORTED_PAGES);
4444 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4445 switch (pn_page[i]) {
4446 case LPFC_SLI4_PARAMETERS:
4447 phba->sli4_hba.pc_sli4_params.supported = 1;
4448 break;
4449 default:
4450 break;
4453 /* Read the port's SLI4 Parameters capabilities if supported. */
4454 if (phba->sli4_hba.pc_sli4_params.supported)
4455 rc = lpfc_pc_sli4_params_get(phba, mboxq);
4456 if (rc) {
4457 mempool_free(mboxq, phba->mbox_mem_pool);
4458 rc = -EIO;
4459 goto out_free_bsmbx;
4463 * Get sli4 parameters that override parameters from Port capabilities.
4464 * If this call fails, it isn't critical unless the SLI4 parameters come
4465 * back in conflict.
4467 rc = lpfc_get_sli4_parameters(phba, mboxq);
4468 if (rc) {
4469 if (phba->sli4_hba.extents_in_use &&
4470 phba->sli4_hba.rpi_hdrs_in_use) {
4471 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4472 "2999 Unsupported SLI4 Parameters "
4473 "Extents and RPI headers enabled.\n");
4474 goto out_free_bsmbx;
4477 mempool_free(mboxq, phba->mbox_mem_pool);
4478 /* Create all the SLI4 queues */
4479 rc = lpfc_sli4_queue_create(phba);
4480 if (rc)
4481 goto out_free_bsmbx;
4483 /* Create driver internal CQE event pool */
4484 rc = lpfc_sli4_cq_event_pool_create(phba);
4485 if (rc)
4486 goto out_destroy_queue;
4488 /* Initialize and populate the iocb list per host */
4489 rc = lpfc_init_sgl_list(phba);
4490 if (rc) {
4491 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4492 "1400 Failed to initialize sgl list.\n");
4493 goto out_destroy_cq_event_pool;
4495 rc = lpfc_init_active_sgl_array(phba);
4496 if (rc) {
4497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4498 "1430 Failed to initialize sgl list.\n");
4499 goto out_free_sgl_list;
4501 rc = lpfc_sli4_init_rpi_hdrs(phba);
4502 if (rc) {
4503 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4504 "1432 Failed to initialize rpi headers.\n");
4505 goto out_free_active_sgl;
4508 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
4509 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4510 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4511 GFP_KERNEL);
4512 if (!phba->fcf.fcf_rr_bmask) {
4513 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4514 "2759 Failed allocate memory for FCF round "
4515 "robin failover bmask\n");
4516 rc = -ENOMEM;
4517 goto out_remove_rpi_hdrs;
4520 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4521 phba->cfg_fcp_eq_count), GFP_KERNEL);
4522 if (!phba->sli4_hba.fcp_eq_hdl) {
4523 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4524 "2572 Failed allocate memory for fast-path "
4525 "per-EQ handle array\n");
4526 rc = -ENOMEM;
4527 goto out_free_fcf_rr_bmask;
4530 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4531 phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4532 if (!phba->sli4_hba.msix_entries) {
4533 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4534 "2573 Failed allocate memory for msi-x "
4535 "interrupt vector entries\n");
4536 rc = -ENOMEM;
4537 goto out_free_fcp_eq_hdl;
4541 * Enable sr-iov virtual functions if supported and configured
4542 * through the module parameter.
4544 if (phba->cfg_sriov_nr_virtfn > 0) {
4545 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4546 phba->cfg_sriov_nr_virtfn);
4547 if (rc) {
4548 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4549 "3020 Requested number of SR-IOV "
4550 "virtual functions (%d) is not "
4551 "supported\n",
4552 phba->cfg_sriov_nr_virtfn);
4553 phba->cfg_sriov_nr_virtfn = 0;
4557 return 0;
4559 out_free_fcp_eq_hdl:
4560 kfree(phba->sli4_hba.fcp_eq_hdl);
4561 out_free_fcf_rr_bmask:
4562 kfree(phba->fcf.fcf_rr_bmask);
4563 out_remove_rpi_hdrs:
4564 lpfc_sli4_remove_rpi_hdrs(phba);
4565 out_free_active_sgl:
4566 lpfc_free_active_sgl(phba);
4567 out_free_sgl_list:
4568 lpfc_free_sgl_list(phba);
4569 out_destroy_cq_event_pool:
4570 lpfc_sli4_cq_event_pool_destroy(phba);
4571 out_destroy_queue:
4572 lpfc_sli4_queue_destroy(phba);
4573 out_free_bsmbx:
4574 lpfc_destroy_bootstrap_mbox(phba);
4575 out_free_mem:
4576 lpfc_mem_free(phba);
4577 return rc;
4581 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4582 * @phba: pointer to lpfc hba data structure.
4584 * This routine is invoked to unset the driver internal resources set up
4585 * specific for supporting the SLI-4 HBA device it attached to.
4587 static void
4588 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4590 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4592 /* Free memory allocated for msi-x interrupt vector entries */
4593 kfree(phba->sli4_hba.msix_entries);
4595 /* Free memory allocated for fast-path work queue handles */
4596 kfree(phba->sli4_hba.fcp_eq_hdl);
4598 /* Free the allocated rpi headers. */
4599 lpfc_sli4_remove_rpi_hdrs(phba);
4600 lpfc_sli4_remove_rpis(phba);
4602 /* Free eligible FCF index bmask */
4603 kfree(phba->fcf.fcf_rr_bmask);
4605 /* Free the ELS sgl list */
4606 lpfc_free_active_sgl(phba);
4607 lpfc_free_sgl_list(phba);
4609 /* Free the SCSI sgl management array */
4610 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4612 /* Free the SLI4 queues */
4613 lpfc_sli4_queue_destroy(phba);
4615 /* Free the completion queue EQ event pool */
4616 lpfc_sli4_cq_event_release_all(phba);
4617 lpfc_sli4_cq_event_pool_destroy(phba);
4619 /* Release resource identifiers. */
4620 lpfc_sli4_dealloc_resource_identifiers(phba);
4622 /* Free the bsmbx region. */
4623 lpfc_destroy_bootstrap_mbox(phba);
4625 /* Free the SLI Layer memory with SLI4 HBAs */
4626 lpfc_mem_free_all(phba);
4628 /* Free the current connect table */
4629 list_for_each_entry_safe(conn_entry, next_conn_entry,
4630 &phba->fcf_conn_rec_list, list) {
4631 list_del_init(&conn_entry->list);
4632 kfree(conn_entry);
4635 return;
4639 * lpfc_init_api_table_setup - Set up init api function jump table
4640 * @phba: The hba struct for which this call is being executed.
4641 * @dev_grp: The HBA PCI-Device group number.
4643 * This routine sets up the device INIT interface API function jump table
4644 * in @phba struct.
4646 * Returns: 0 - success, -ENODEV - failure.
4649 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4651 phba->lpfc_hba_init_link = lpfc_hba_init_link;
4652 phba->lpfc_hba_down_link = lpfc_hba_down_link;
4653 phba->lpfc_selective_reset = lpfc_selective_reset;
4654 switch (dev_grp) {
4655 case LPFC_PCI_DEV_LP:
4656 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4657 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4658 phba->lpfc_stop_port = lpfc_stop_port_s3;
4659 break;
4660 case LPFC_PCI_DEV_OC:
4661 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4662 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4663 phba->lpfc_stop_port = lpfc_stop_port_s4;
4664 break;
4665 default:
4666 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4667 "1431 Invalid HBA PCI-device group: 0x%x\n",
4668 dev_grp);
4669 return -ENODEV;
4670 break;
4672 return 0;
4676 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4677 * @phba: pointer to lpfc hba data structure.
4679 * This routine is invoked to set up the driver internal resources before the
4680 * device specific resource setup to support the HBA device it attached to.
4682 * Return codes
4683 * 0 - successful
4684 * other values - error
4686 static int
4687 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4690 * Driver resources common to all SLI revisions
4692 atomic_set(&phba->fast_event_count, 0);
4693 spin_lock_init(&phba->hbalock);
4695 /* Initialize ndlp management spinlock */
4696 spin_lock_init(&phba->ndlp_lock);
4698 INIT_LIST_HEAD(&phba->port_list);
4699 INIT_LIST_HEAD(&phba->work_list);
4700 init_waitqueue_head(&phba->wait_4_mlo_m_q);
4702 /* Initialize the wait queue head for the kernel thread */
4703 init_waitqueue_head(&phba->work_waitq);
4705 /* Initialize the scsi buffer list used by driver for scsi IO */
4706 spin_lock_init(&phba->scsi_buf_list_lock);
4707 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4709 /* Initialize the fabric iocb list */
4710 INIT_LIST_HEAD(&phba->fabric_iocb_list);
4712 /* Initialize list to save ELS buffers */
4713 INIT_LIST_HEAD(&phba->elsbuf);
4715 /* Initialize FCF connection rec list */
4716 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4718 return 0;
4722 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4723 * @phba: pointer to lpfc hba data structure.
4725 * This routine is invoked to set up the driver internal resources after the
4726 * device specific resource setup to support the HBA device it attached to.
4728 * Return codes
4729 * 0 - successful
4730 * other values - error
4732 static int
4733 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4735 int error;
4737 /* Startup the kernel thread for this host adapter. */
4738 phba->worker_thread = kthread_run(lpfc_do_work, phba,
4739 "lpfc_worker_%d", phba->brd_no);
4740 if (IS_ERR(phba->worker_thread)) {
4741 error = PTR_ERR(phba->worker_thread);
4742 return error;
4745 return 0;
4749 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4750 * @phba: pointer to lpfc hba data structure.
4752 * This routine is invoked to unset the driver internal resources set up after
4753 * the device specific resource setup for supporting the HBA device it
4754 * attached to.
4756 static void
4757 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4759 /* Stop kernel worker thread */
4760 kthread_stop(phba->worker_thread);
4764 * lpfc_free_iocb_list - Free iocb list.
4765 * @phba: pointer to lpfc hba data structure.
4767 * This routine is invoked to free the driver's IOCB list and memory.
4769 static void
4770 lpfc_free_iocb_list(struct lpfc_hba *phba)
4772 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4774 spin_lock_irq(&phba->hbalock);
4775 list_for_each_entry_safe(iocbq_entry, iocbq_next,
4776 &phba->lpfc_iocb_list, list) {
4777 list_del(&iocbq_entry->list);
4778 kfree(iocbq_entry);
4779 phba->total_iocbq_bufs--;
4781 spin_unlock_irq(&phba->hbalock);
4783 return;
4787 * lpfc_init_iocb_list - Allocate and initialize iocb list.
4788 * @phba: pointer to lpfc hba data structure.
4790 * This routine is invoked to allocate and initizlize the driver's IOCB
4791 * list and set up the IOCB tag array accordingly.
4793 * Return codes
4794 * 0 - successful
4795 * other values - error
4797 static int
4798 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4800 struct lpfc_iocbq *iocbq_entry = NULL;
4801 uint16_t iotag;
4802 int i;
4804 /* Initialize and populate the iocb list per host. */
4805 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
4806 for (i = 0; i < iocb_count; i++) {
4807 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
4808 if (iocbq_entry == NULL) {
4809 printk(KERN_ERR "%s: only allocated %d iocbs of "
4810 "expected %d count. Unloading driver.\n",
4811 __func__, i, LPFC_IOCB_LIST_CNT);
4812 goto out_free_iocbq;
4815 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4816 if (iotag == 0) {
4817 kfree(iocbq_entry);
4818 printk(KERN_ERR "%s: failed to allocate IOTAG. "
4819 "Unloading driver.\n", __func__);
4820 goto out_free_iocbq;
4822 iocbq_entry->sli4_lxritag = NO_XRI;
4823 iocbq_entry->sli4_xritag = NO_XRI;
4825 spin_lock_irq(&phba->hbalock);
4826 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4827 phba->total_iocbq_bufs++;
4828 spin_unlock_irq(&phba->hbalock);
4831 return 0;
4833 out_free_iocbq:
4834 lpfc_free_iocb_list(phba);
4836 return -ENOMEM;
4840 * lpfc_free_sgl_list - Free sgl list.
4841 * @phba: pointer to lpfc hba data structure.
4843 * This routine is invoked to free the driver's sgl list and memory.
4845 static void
4846 lpfc_free_sgl_list(struct lpfc_hba *phba)
4848 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
4849 LIST_HEAD(sglq_list);
4851 spin_lock_irq(&phba->hbalock);
4852 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
4853 spin_unlock_irq(&phba->hbalock);
4855 list_for_each_entry_safe(sglq_entry, sglq_next,
4856 &sglq_list, list) {
4857 list_del(&sglq_entry->list);
4858 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
4859 kfree(sglq_entry);
4860 phba->sli4_hba.total_sglq_bufs--;
4862 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4866 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4867 * @phba: pointer to lpfc hba data structure.
4869 * This routine is invoked to allocate the driver's active sgl memory.
4870 * This array will hold the sglq_entry's for active IOs.
4872 static int
4873 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
4875 int size;
4876 size = sizeof(struct lpfc_sglq *);
4877 size *= phba->sli4_hba.max_cfg_param.max_xri;
4879 phba->sli4_hba.lpfc_sglq_active_list =
4880 kzalloc(size, GFP_KERNEL);
4881 if (!phba->sli4_hba.lpfc_sglq_active_list)
4882 return -ENOMEM;
4883 return 0;
4887 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4888 * @phba: pointer to lpfc hba data structure.
4890 * This routine is invoked to walk through the array of active sglq entries
4891 * and free all of the resources.
4892 * This is just a place holder for now.
4894 static void
4895 lpfc_free_active_sgl(struct lpfc_hba *phba)
4897 kfree(phba->sli4_hba.lpfc_sglq_active_list);
4901 * lpfc_init_sgl_list - Allocate and initialize sgl list.
4902 * @phba: pointer to lpfc hba data structure.
4904 * This routine is invoked to allocate and initizlize the driver's sgl
4905 * list and set up the sgl xritag tag array accordingly.
4907 * Return codes
4908 * 0 - successful
4909 * other values - error
4911 static int
4912 lpfc_init_sgl_list(struct lpfc_hba *phba)
4914 struct lpfc_sglq *sglq_entry = NULL;
4915 int i;
4916 int els_xri_cnt;
4918 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4919 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4920 "2400 ELS XRI count %d.\n",
4921 els_xri_cnt);
4922 /* Initialize and populate the sglq list per host/VF. */
4923 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4924 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4926 /* Sanity check on XRI management */
4927 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4928 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4929 "2562 No room left for SCSI XRI allocation: "
4930 "max_xri=%d, els_xri=%d\n",
4931 phba->sli4_hba.max_cfg_param.max_xri,
4932 els_xri_cnt);
4933 return -ENOMEM;
4936 /* Allocate memory for the ELS XRI management array */
4937 phba->sli4_hba.lpfc_els_sgl_array =
4938 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4939 GFP_KERNEL);
4941 if (!phba->sli4_hba.lpfc_els_sgl_array) {
4942 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4943 "2401 Failed to allocate memory for ELS "
4944 "XRI management array of size %d.\n",
4945 els_xri_cnt);
4946 return -ENOMEM;
4949 /* Keep the SCSI XRI into the XRI management array */
4950 phba->sli4_hba.scsi_xri_max =
4951 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4952 phba->sli4_hba.scsi_xri_cnt = 0;
4953 phba->sli4_hba.lpfc_scsi_psb_array =
4954 kzalloc((sizeof(struct lpfc_scsi_buf *) *
4955 phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4957 if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4958 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4959 "2563 Failed to allocate memory for SCSI "
4960 "XRI management array of size %d.\n",
4961 phba->sli4_hba.scsi_xri_max);
4962 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4963 return -ENOMEM;
4966 for (i = 0; i < els_xri_cnt; i++) {
4967 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4968 if (sglq_entry == NULL) {
4969 printk(KERN_ERR "%s: only allocated %d sgls of "
4970 "expected %d count. Unloading driver.\n",
4971 __func__, i, els_xri_cnt);
4972 goto out_free_mem;
4975 sglq_entry->buff_type = GEN_BUFF_TYPE;
4976 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4977 if (sglq_entry->virt == NULL) {
4978 kfree(sglq_entry);
4979 printk(KERN_ERR "%s: failed to allocate mbuf.\n"
4980 "Unloading driver.\n", __func__);
4981 goto out_free_mem;
4983 sglq_entry->sgl = sglq_entry->virt;
4984 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4986 /* The list order is used by later block SGL registraton */
4987 spin_lock_irq(&phba->hbalock);
4988 sglq_entry->state = SGL_FREED;
4989 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
4990 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
4991 phba->sli4_hba.total_sglq_bufs++;
4992 spin_unlock_irq(&phba->hbalock);
4994 return 0;
4996 out_free_mem:
4997 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4998 lpfc_free_sgl_list(phba);
4999 return -ENOMEM;
5003 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5004 * @phba: pointer to lpfc hba data structure.
5006 * This routine is invoked to post rpi header templates to the
5007 * port for those SLI4 ports that do not support extents. This routine
5008 * posts a PAGE_SIZE memory region to the port to hold up to
5009 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
5010 * and should be called only when interrupts are disabled.
5012 * Return codes
5013 * 0 - successful
5014 * -ERROR - otherwise.
5017 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5019 int rc = 0;
5020 struct lpfc_rpi_hdr *rpi_hdr;
5022 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5024 * If the SLI4 port supports extents, posting the rpi header isn't
5025 * required. Set the expected maximum count and let the actual value
5026 * get set when extents are fully allocated.
5028 if (!phba->sli4_hba.rpi_hdrs_in_use) {
5029 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
5030 return rc;
5032 if (phba->sli4_hba.extents_in_use)
5033 return -EIO;
5035 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5036 if (!rpi_hdr) {
5037 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5038 "0391 Error during rpi post operation\n");
5039 lpfc_sli4_remove_rpis(phba);
5040 rc = -ENODEV;
5043 return rc;
5047 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5048 * @phba: pointer to lpfc hba data structure.
5050 * This routine is invoked to allocate a single 4KB memory region to
5051 * support rpis and stores them in the phba. This single region
5052 * provides support for up to 64 rpis. The region is used globally
5053 * by the device.
5055 * Returns:
5056 * A valid rpi hdr on success.
5057 * A NULL pointer on any failure.
5059 struct lpfc_rpi_hdr *
5060 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5062 uint16_t rpi_limit, curr_rpi_range;
5063 struct lpfc_dmabuf *dmabuf;
5064 struct lpfc_rpi_hdr *rpi_hdr;
5065 uint32_t rpi_count;
5068 * If the SLI4 port supports extents, posting the rpi header isn't
5069 * required. Set the expected maximum count and let the actual value
5070 * get set when extents are fully allocated.
5072 if (!phba->sli4_hba.rpi_hdrs_in_use)
5073 return NULL;
5074 if (phba->sli4_hba.extents_in_use)
5075 return NULL;
5077 /* The limit on the logical index is just the max_rpi count. */
5078 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5079 phba->sli4_hba.max_cfg_param.max_rpi - 1;
5081 spin_lock_irq(&phba->hbalock);
5083 * Establish the starting RPI in this header block. The starting
5084 * rpi is normalized to a zero base because the physical rpi is
5085 * port based.
5087 curr_rpi_range = phba->sli4_hba.next_rpi -
5088 phba->sli4_hba.max_cfg_param.rpi_base;
5089 spin_unlock_irq(&phba->hbalock);
5092 * The port has a limited number of rpis. The increment here
5093 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5094 * and to allow the full max_rpi range per port.
5096 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5097 rpi_count = rpi_limit - curr_rpi_range;
5098 else
5099 rpi_count = LPFC_RPI_HDR_COUNT;
5101 if (!rpi_count)
5102 return NULL;
5104 * First allocate the protocol header region for the port. The
5105 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5107 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5108 if (!dmabuf)
5109 return NULL;
5111 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5112 LPFC_HDR_TEMPLATE_SIZE,
5113 &dmabuf->phys,
5114 GFP_KERNEL);
5115 if (!dmabuf->virt) {
5116 rpi_hdr = NULL;
5117 goto err_free_dmabuf;
5120 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5121 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5122 rpi_hdr = NULL;
5123 goto err_free_coherent;
5126 /* Save the rpi header data for cleanup later. */
5127 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5128 if (!rpi_hdr)
5129 goto err_free_coherent;
5131 rpi_hdr->dmabuf = dmabuf;
5132 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5133 rpi_hdr->page_count = 1;
5134 spin_lock_irq(&phba->hbalock);
5136 /* The rpi_hdr stores the logical index only. */
5137 rpi_hdr->start_rpi = curr_rpi_range;
5138 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5141 * The next_rpi stores the next logical module-64 rpi value used
5142 * to post physical rpis in subsequent rpi postings.
5144 phba->sli4_hba.next_rpi += rpi_count;
5145 spin_unlock_irq(&phba->hbalock);
5146 return rpi_hdr;
5148 err_free_coherent:
5149 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5150 dmabuf->virt, dmabuf->phys);
5151 err_free_dmabuf:
5152 kfree(dmabuf);
5153 return NULL;
5157 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5158 * @phba: pointer to lpfc hba data structure.
5160 * This routine is invoked to remove all memory resources allocated
5161 * to support rpis for SLI4 ports not supporting extents. This routine
5162 * presumes the caller has released all rpis consumed by fabric or port
5163 * logins and is prepared to have the header pages removed.
5165 void
5166 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5168 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5170 if (!phba->sli4_hba.rpi_hdrs_in_use)
5171 goto exit;
5173 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5174 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5175 list_del(&rpi_hdr->list);
5176 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5177 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5178 kfree(rpi_hdr->dmabuf);
5179 kfree(rpi_hdr);
5181 exit:
5182 /* There are no rpis available to the port now. */
5183 phba->sli4_hba.next_rpi = 0;
5187 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5188 * @pdev: pointer to pci device data structure.
5190 * This routine is invoked to allocate the driver hba data structure for an
5191 * HBA device. If the allocation is successful, the phba reference to the
5192 * PCI device data structure is set.
5194 * Return codes
5195 * pointer to @phba - successful
5196 * NULL - error
5198 static struct lpfc_hba *
5199 lpfc_hba_alloc(struct pci_dev *pdev)
5201 struct lpfc_hba *phba;
5203 /* Allocate memory for HBA structure */
5204 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5205 if (!phba) {
5206 dev_err(&pdev->dev, "failed to allocate hba struct\n");
5207 return NULL;
5210 /* Set reference to PCI device in HBA structure */
5211 phba->pcidev = pdev;
5213 /* Assign an unused board number */
5214 phba->brd_no = lpfc_get_instance();
5215 if (phba->brd_no < 0) {
5216 kfree(phba);
5217 return NULL;
5220 spin_lock_init(&phba->ct_ev_lock);
5221 INIT_LIST_HEAD(&phba->ct_ev_waiters);
5223 return phba;
5227 * lpfc_hba_free - Free driver hba data structure with a device.
5228 * @phba: pointer to lpfc hba data structure.
5230 * This routine is invoked to free the driver hba data structure with an
5231 * HBA device.
5233 static void
5234 lpfc_hba_free(struct lpfc_hba *phba)
5236 /* Release the driver assigned board number */
5237 idr_remove(&lpfc_hba_index, phba->brd_no);
5239 kfree(phba);
5240 return;
5244 * lpfc_create_shost - Create hba physical port with associated scsi host.
5245 * @phba: pointer to lpfc hba data structure.
5247 * This routine is invoked to create HBA physical port and associate a SCSI
5248 * host with it.
5250 * Return codes
5251 * 0 - successful
5252 * other values - error
5254 static int
5255 lpfc_create_shost(struct lpfc_hba *phba)
5257 struct lpfc_vport *vport;
5258 struct Scsi_Host *shost;
5260 /* Initialize HBA FC structure */
5261 phba->fc_edtov = FF_DEF_EDTOV;
5262 phba->fc_ratov = FF_DEF_RATOV;
5263 phba->fc_altov = FF_DEF_ALTOV;
5264 phba->fc_arbtov = FF_DEF_ARBTOV;
5266 atomic_set(&phba->sdev_cnt, 0);
5267 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5268 if (!vport)
5269 return -ENODEV;
5271 shost = lpfc_shost_from_vport(vport);
5272 phba->pport = vport;
5273 lpfc_debugfs_initialize(vport);
5274 /* Put reference to SCSI host to driver's device private data */
5275 pci_set_drvdata(phba->pcidev, shost);
5277 return 0;
5281 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5282 * @phba: pointer to lpfc hba data structure.
5284 * This routine is invoked to destroy HBA physical port and the associated
5285 * SCSI host.
5287 static void
5288 lpfc_destroy_shost(struct lpfc_hba *phba)
5290 struct lpfc_vport *vport = phba->pport;
5292 /* Destroy physical port that associated with the SCSI host */
5293 destroy_port(vport);
5295 return;
5299 * lpfc_setup_bg - Setup Block guard structures and debug areas.
5300 * @phba: pointer to lpfc hba data structure.
5301 * @shost: the shost to be used to detect Block guard settings.
5303 * This routine sets up the local Block guard protocol settings for @shost.
5304 * This routine also allocates memory for debugging bg buffers.
5306 static void
5307 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5309 int pagecnt = 10;
5310 if (lpfc_prot_mask && lpfc_prot_guard) {
5311 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5312 "1478 Registering BlockGuard with the "
5313 "SCSI layer\n");
5314 scsi_host_set_prot(shost, lpfc_prot_mask);
5315 scsi_host_set_guard(shost, lpfc_prot_guard);
5317 if (!_dump_buf_data) {
5318 while (pagecnt) {
5319 spin_lock_init(&_dump_buf_lock);
5320 _dump_buf_data =
5321 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5322 if (_dump_buf_data) {
5323 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5324 "9043 BLKGRD: allocated %d pages for "
5325 "_dump_buf_data at 0x%p\n",
5326 (1 << pagecnt), _dump_buf_data);
5327 _dump_buf_data_order = pagecnt;
5328 memset(_dump_buf_data, 0,
5329 ((1 << PAGE_SHIFT) << pagecnt));
5330 break;
5331 } else
5332 --pagecnt;
5334 if (!_dump_buf_data_order)
5335 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5336 "9044 BLKGRD: ERROR unable to allocate "
5337 "memory for hexdump\n");
5338 } else
5339 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5340 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5341 "\n", _dump_buf_data);
5342 if (!_dump_buf_dif) {
5343 while (pagecnt) {
5344 _dump_buf_dif =
5345 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5346 if (_dump_buf_dif) {
5347 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5348 "9046 BLKGRD: allocated %d pages for "
5349 "_dump_buf_dif at 0x%p\n",
5350 (1 << pagecnt), _dump_buf_dif);
5351 _dump_buf_dif_order = pagecnt;
5352 memset(_dump_buf_dif, 0,
5353 ((1 << PAGE_SHIFT) << pagecnt));
5354 break;
5355 } else
5356 --pagecnt;
5358 if (!_dump_buf_dif_order)
5359 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5360 "9047 BLKGRD: ERROR unable to allocate "
5361 "memory for hexdump\n");
5362 } else
5363 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5364 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5365 _dump_buf_dif);
5369 * lpfc_post_init_setup - Perform necessary device post initialization setup.
5370 * @phba: pointer to lpfc hba data structure.
5372 * This routine is invoked to perform all the necessary post initialization
5373 * setup for the device.
5375 static void
5376 lpfc_post_init_setup(struct lpfc_hba *phba)
5378 struct Scsi_Host *shost;
5379 struct lpfc_adapter_event_header adapter_event;
5381 /* Get the default values for Model Name and Description */
5382 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5385 * hba setup may have changed the hba_queue_depth so we need to
5386 * adjust the value of can_queue.
5388 shost = pci_get_drvdata(phba->pcidev);
5389 shost->can_queue = phba->cfg_hba_queue_depth - 10;
5390 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5391 lpfc_setup_bg(phba, shost);
5393 lpfc_host_attrib_init(shost);
5395 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5396 spin_lock_irq(shost->host_lock);
5397 lpfc_poll_start_timer(phba);
5398 spin_unlock_irq(shost->host_lock);
5401 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5402 "0428 Perform SCSI scan\n");
5403 /* Send board arrival event to upper layer */
5404 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5405 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5406 fc_host_post_vendor_event(shost, fc_get_event_number(),
5407 sizeof(adapter_event),
5408 (char *) &adapter_event,
5409 LPFC_NL_VENDOR_ID);
5410 return;
5414 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5415 * @phba: pointer to lpfc hba data structure.
5417 * This routine is invoked to set up the PCI device memory space for device
5418 * with SLI-3 interface spec.
5420 * Return codes
5421 * 0 - successful
5422 * other values - error
5424 static int
5425 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5427 struct pci_dev *pdev;
5428 unsigned long bar0map_len, bar2map_len;
5429 int i, hbq_count;
5430 void *ptr;
5431 int error = -ENODEV;
5433 /* Obtain PCI device reference */
5434 if (!phba->pcidev)
5435 return error;
5436 else
5437 pdev = phba->pcidev;
5439 /* Set the device DMA mask size */
5440 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5441 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5442 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5443 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
5444 return error;
5448 /* Get the bus address of Bar0 and Bar2 and the number of bytes
5449 * required by each mapping.
5451 phba->pci_bar0_map = pci_resource_start(pdev, 0);
5452 bar0map_len = pci_resource_len(pdev, 0);
5454 phba->pci_bar2_map = pci_resource_start(pdev, 2);
5455 bar2map_len = pci_resource_len(pdev, 2);
5457 /* Map HBA SLIM to a kernel virtual address. */
5458 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5459 if (!phba->slim_memmap_p) {
5460 dev_printk(KERN_ERR, &pdev->dev,
5461 "ioremap failed for SLIM memory.\n");
5462 goto out;
5465 /* Map HBA Control Registers to a kernel virtual address. */
5466 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5467 if (!phba->ctrl_regs_memmap_p) {
5468 dev_printk(KERN_ERR, &pdev->dev,
5469 "ioremap failed for HBA control registers.\n");
5470 goto out_iounmap_slim;
5473 /* Allocate memory for SLI-2 structures */
5474 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5475 SLI2_SLIM_SIZE,
5476 &phba->slim2p.phys,
5477 GFP_KERNEL);
5478 if (!phba->slim2p.virt)
5479 goto out_iounmap;
5481 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5482 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
5483 phba->mbox_ext = (phba->slim2p.virt +
5484 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
5485 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5486 phba->IOCBs = (phba->slim2p.virt +
5487 offsetof(struct lpfc_sli2_slim, IOCBs));
5489 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5490 lpfc_sli_hbq_size(),
5491 &phba->hbqslimp.phys,
5492 GFP_KERNEL);
5493 if (!phba->hbqslimp.virt)
5494 goto out_free_slim;
5496 hbq_count = lpfc_sli_hbq_count();
5497 ptr = phba->hbqslimp.virt;
5498 for (i = 0; i < hbq_count; ++i) {
5499 phba->hbqs[i].hbq_virt = ptr;
5500 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5501 ptr += (lpfc_hbq_defs[i]->entry_count *
5502 sizeof(struct lpfc_hbq_entry));
5504 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5505 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5507 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5509 INIT_LIST_HEAD(&phba->rb_pend_list);
5511 phba->MBslimaddr = phba->slim_memmap_p;
5512 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5513 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5514 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5515 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5517 return 0;
5519 out_free_slim:
5520 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5521 phba->slim2p.virt, phba->slim2p.phys);
5522 out_iounmap:
5523 iounmap(phba->ctrl_regs_memmap_p);
5524 out_iounmap_slim:
5525 iounmap(phba->slim_memmap_p);
5526 out:
5527 return error;
5531 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5532 * @phba: pointer to lpfc hba data structure.
5534 * This routine is invoked to unset the PCI device memory space for device
5535 * with SLI-3 interface spec.
5537 static void
5538 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5540 struct pci_dev *pdev;
5542 /* Obtain PCI device reference */
5543 if (!phba->pcidev)
5544 return;
5545 else
5546 pdev = phba->pcidev;
5548 /* Free coherent DMA memory allocated */
5549 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5550 phba->hbqslimp.virt, phba->hbqslimp.phys);
5551 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5552 phba->slim2p.virt, phba->slim2p.phys);
5554 /* I/O memory unmap */
5555 iounmap(phba->ctrl_regs_memmap_p);
5556 iounmap(phba->slim_memmap_p);
5558 return;
5562 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5563 * @phba: pointer to lpfc hba data structure.
5565 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5566 * done and check status.
5568 * Return 0 if successful, otherwise -ENODEV.
5571 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
5573 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
5574 struct lpfc_register reg_data;
5575 int i, port_error = 0;
5576 uint32_t if_type;
5578 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
5579 memset(&reg_data, 0, sizeof(reg_data));
5580 if (!phba->sli4_hba.PSMPHRregaddr)
5581 return -ENODEV;
5583 /* Wait up to 30 seconds for the SLI Port POST done and ready */
5584 for (i = 0; i < 3000; i++) {
5585 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
5586 &portsmphr_reg.word0) ||
5587 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
5588 /* Port has a fatal POST error, break out */
5589 port_error = -ENODEV;
5590 break;
5592 if (LPFC_POST_STAGE_PORT_READY ==
5593 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
5594 break;
5595 msleep(10);
5599 * If there was a port error during POST, then don't proceed with
5600 * other register reads as the data may not be valid. Just exit.
5602 if (port_error) {
5603 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5604 "1408 Port Failed POST - portsmphr=0x%x, "
5605 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
5606 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
5607 portsmphr_reg.word0,
5608 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
5609 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
5610 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
5611 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
5612 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
5613 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
5614 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
5615 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
5616 } else {
5617 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5618 "2534 Device Info: SLIFamily=0x%x, "
5619 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
5620 "SLIHint_2=0x%x, FT=0x%x\n",
5621 bf_get(lpfc_sli_intf_sli_family,
5622 &phba->sli4_hba.sli_intf),
5623 bf_get(lpfc_sli_intf_slirev,
5624 &phba->sli4_hba.sli_intf),
5625 bf_get(lpfc_sli_intf_if_type,
5626 &phba->sli4_hba.sli_intf),
5627 bf_get(lpfc_sli_intf_sli_hint1,
5628 &phba->sli4_hba.sli_intf),
5629 bf_get(lpfc_sli_intf_sli_hint2,
5630 &phba->sli4_hba.sli_intf),
5631 bf_get(lpfc_sli_intf_func_type,
5632 &phba->sli4_hba.sli_intf));
5634 * Check for other Port errors during the initialization
5635 * process. Fail the load if the port did not come up
5636 * correctly.
5638 if_type = bf_get(lpfc_sli_intf_if_type,
5639 &phba->sli4_hba.sli_intf);
5640 switch (if_type) {
5641 case LPFC_SLI_INTF_IF_TYPE_0:
5642 phba->sli4_hba.ue_mask_lo =
5643 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
5644 phba->sli4_hba.ue_mask_hi =
5645 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
5646 uerrlo_reg.word0 =
5647 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
5648 uerrhi_reg.word0 =
5649 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
5650 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5651 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5652 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5653 "1422 Unrecoverable Error "
5654 "Detected during POST "
5655 "uerr_lo_reg=0x%x, "
5656 "uerr_hi_reg=0x%x, "
5657 "ue_mask_lo_reg=0x%x, "
5658 "ue_mask_hi_reg=0x%x\n",
5659 uerrlo_reg.word0,
5660 uerrhi_reg.word0,
5661 phba->sli4_hba.ue_mask_lo,
5662 phba->sli4_hba.ue_mask_hi);
5663 port_error = -ENODEV;
5665 break;
5666 case LPFC_SLI_INTF_IF_TYPE_2:
5667 /* Final checks. The port status should be clean. */
5668 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
5669 &reg_data.word0) ||
5670 (bf_get(lpfc_sliport_status_err, &reg_data) &&
5671 !bf_get(lpfc_sliport_status_rn, &reg_data))) {
5672 phba->work_status[0] =
5673 readl(phba->sli4_hba.u.if_type2.
5674 ERR1regaddr);
5675 phba->work_status[1] =
5676 readl(phba->sli4_hba.u.if_type2.
5677 ERR2regaddr);
5678 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5679 "2888 Port Error Detected "
5680 "during POST: "
5681 "port status reg 0x%x, "
5682 "port_smphr reg 0x%x, "
5683 "error 1=0x%x, error 2=0x%x\n",
5684 reg_data.word0,
5685 portsmphr_reg.word0,
5686 phba->work_status[0],
5687 phba->work_status[1]);
5688 port_error = -ENODEV;
5690 break;
5691 case LPFC_SLI_INTF_IF_TYPE_1:
5692 default:
5693 break;
5696 return port_error;
5700 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5701 * @phba: pointer to lpfc hba data structure.
5702 * @if_type: The SLI4 interface type getting configured.
5704 * This routine is invoked to set up SLI4 BAR0 PCI config space register
5705 * memory map.
5707 static void
5708 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
5710 switch (if_type) {
5711 case LPFC_SLI_INTF_IF_TYPE_0:
5712 phba->sli4_hba.u.if_type0.UERRLOregaddr =
5713 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
5714 phba->sli4_hba.u.if_type0.UERRHIregaddr =
5715 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
5716 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
5717 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
5718 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
5719 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
5720 phba->sli4_hba.SLIINTFregaddr =
5721 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5722 break;
5723 case LPFC_SLI_INTF_IF_TYPE_2:
5724 phba->sli4_hba.u.if_type2.ERR1regaddr =
5725 phba->sli4_hba.conf_regs_memmap_p +
5726 LPFC_CTL_PORT_ER1_OFFSET;
5727 phba->sli4_hba.u.if_type2.ERR2regaddr =
5728 phba->sli4_hba.conf_regs_memmap_p +
5729 LPFC_CTL_PORT_ER2_OFFSET;
5730 phba->sli4_hba.u.if_type2.CTRLregaddr =
5731 phba->sli4_hba.conf_regs_memmap_p +
5732 LPFC_CTL_PORT_CTL_OFFSET;
5733 phba->sli4_hba.u.if_type2.STATUSregaddr =
5734 phba->sli4_hba.conf_regs_memmap_p +
5735 LPFC_CTL_PORT_STA_OFFSET;
5736 phba->sli4_hba.SLIINTFregaddr =
5737 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5738 phba->sli4_hba.PSMPHRregaddr =
5739 phba->sli4_hba.conf_regs_memmap_p +
5740 LPFC_CTL_PORT_SEM_OFFSET;
5741 phba->sli4_hba.RQDBregaddr =
5742 phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
5743 phba->sli4_hba.WQDBregaddr =
5744 phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
5745 phba->sli4_hba.EQCQDBregaddr =
5746 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
5747 phba->sli4_hba.MQDBregaddr =
5748 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
5749 phba->sli4_hba.BMBXregaddr =
5750 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
5751 break;
5752 case LPFC_SLI_INTF_IF_TYPE_1:
5753 default:
5754 dev_printk(KERN_ERR, &phba->pcidev->dev,
5755 "FATAL - unsupported SLI4 interface type - %d\n",
5756 if_type);
5757 break;
5762 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5763 * @phba: pointer to lpfc hba data structure.
5765 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5766 * memory map.
5768 static void
5769 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5771 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5772 LPFC_SLIPORT_IF0_SMPHR;
5773 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5774 LPFC_HST_ISR0;
5775 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5776 LPFC_HST_IMR0;
5777 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5778 LPFC_HST_ISCR0;
5782 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5783 * @phba: pointer to lpfc hba data structure.
5784 * @vf: virtual function number
5786 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5787 * based on the given viftual function number, @vf.
5789 * Return 0 if successful, otherwise -ENODEV.
5791 static int
5792 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
5794 if (vf > LPFC_VIR_FUNC_MAX)
5795 return -ENODEV;
5797 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5798 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5799 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5800 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5801 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5802 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5803 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5804 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5805 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5806 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5807 return 0;
5811 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5812 * @phba: pointer to lpfc hba data structure.
5814 * This routine is invoked to create the bootstrap mailbox
5815 * region consistent with the SLI-4 interface spec. This
5816 * routine allocates all memory necessary to communicate
5817 * mailbox commands to the port and sets up all alignment
5818 * needs. No locks are expected to be held when calling
5819 * this routine.
5821 * Return codes
5822 * 0 - successful
5823 * -ENOMEM - could not allocated memory.
5825 static int
5826 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
5828 uint32_t bmbx_size;
5829 struct lpfc_dmabuf *dmabuf;
5830 struct dma_address *dma_address;
5831 uint32_t pa_addr;
5832 uint64_t phys_addr;
5834 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5835 if (!dmabuf)
5836 return -ENOMEM;
5839 * The bootstrap mailbox region is comprised of 2 parts
5840 * plus an alignment restriction of 16 bytes.
5842 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5843 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5844 bmbx_size,
5845 &dmabuf->phys,
5846 GFP_KERNEL);
5847 if (!dmabuf->virt) {
5848 kfree(dmabuf);
5849 return -ENOMEM;
5851 memset(dmabuf->virt, 0, bmbx_size);
5854 * Initialize the bootstrap mailbox pointers now so that the register
5855 * operations are simple later. The mailbox dma address is required
5856 * to be 16-byte aligned. Also align the virtual memory as each
5857 * maibox is copied into the bmbx mailbox region before issuing the
5858 * command to the port.
5860 phba->sli4_hba.bmbx.dmabuf = dmabuf;
5861 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
5863 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
5864 LPFC_ALIGN_16_BYTE);
5865 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
5866 LPFC_ALIGN_16_BYTE);
5869 * Set the high and low physical addresses now. The SLI4 alignment
5870 * requirement is 16 bytes and the mailbox is posted to the port
5871 * as two 30-bit addresses. The other data is a bit marking whether
5872 * the 30-bit address is the high or low address.
5873 * Upcast bmbx aphys to 64bits so shift instruction compiles
5874 * clean on 32 bit machines.
5876 dma_address = &phba->sli4_hba.bmbx.dma_address;
5877 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
5878 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
5879 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
5880 LPFC_BMBX_BIT1_ADDR_HI);
5882 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
5883 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
5884 LPFC_BMBX_BIT1_ADDR_LO);
5885 return 0;
5889 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5890 * @phba: pointer to lpfc hba data structure.
5892 * This routine is invoked to teardown the bootstrap mailbox
5893 * region and release all host resources. This routine requires
5894 * the caller to ensure all mailbox commands recovered, no
5895 * additional mailbox comands are sent, and interrupts are disabled
5896 * before calling this routine.
5899 static void
5900 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
5902 dma_free_coherent(&phba->pcidev->dev,
5903 phba->sli4_hba.bmbx.bmbx_size,
5904 phba->sli4_hba.bmbx.dmabuf->virt,
5905 phba->sli4_hba.bmbx.dmabuf->phys);
5907 kfree(phba->sli4_hba.bmbx.dmabuf);
5908 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
5912 * lpfc_sli4_read_config - Get the config parameters.
5913 * @phba: pointer to lpfc hba data structure.
5915 * This routine is invoked to read the configuration parameters from the HBA.
5916 * The configuration parameters are used to set the base and maximum values
5917 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5918 * allocation for the port.
5920 * Return codes
5921 * 0 - successful
5922 * -ENOMEM - No available memory
5923 * -EIO - The mailbox failed to complete successfully.
5925 static int
5926 lpfc_sli4_read_config(struct lpfc_hba *phba)
5928 LPFC_MBOXQ_t *pmb;
5929 struct lpfc_mbx_read_config *rd_config;
5930 union lpfc_sli4_cfg_shdr *shdr;
5931 uint32_t shdr_status, shdr_add_status;
5932 struct lpfc_mbx_get_func_cfg *get_func_cfg;
5933 struct lpfc_rsrc_desc_fcfcoe *desc;
5934 uint32_t desc_count;
5935 int length, i, rc = 0;
5937 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5938 if (!pmb) {
5939 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5940 "2011 Unable to allocate memory for issuing "
5941 "SLI_CONFIG_SPECIAL mailbox command\n");
5942 return -ENOMEM;
5945 lpfc_read_config(phba, pmb);
5947 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5948 if (rc != MBX_SUCCESS) {
5949 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5950 "2012 Mailbox failed , mbxCmd x%x "
5951 "READ_CONFIG, mbxStatus x%x\n",
5952 bf_get(lpfc_mqe_command, &pmb->u.mqe),
5953 bf_get(lpfc_mqe_status, &pmb->u.mqe));
5954 rc = -EIO;
5955 } else {
5956 rd_config = &pmb->u.mqe.un.rd_config;
5957 phba->sli4_hba.extents_in_use =
5958 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
5959 phba->sli4_hba.max_cfg_param.max_xri =
5960 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
5961 phba->sli4_hba.max_cfg_param.xri_base =
5962 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
5963 phba->sli4_hba.max_cfg_param.max_vpi =
5964 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
5965 phba->sli4_hba.max_cfg_param.vpi_base =
5966 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
5967 phba->sli4_hba.max_cfg_param.max_rpi =
5968 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
5969 phba->sli4_hba.max_cfg_param.rpi_base =
5970 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
5971 phba->sli4_hba.max_cfg_param.max_vfi =
5972 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
5973 phba->sli4_hba.max_cfg_param.vfi_base =
5974 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
5975 phba->sli4_hba.max_cfg_param.max_fcfi =
5976 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
5977 phba->sli4_hba.max_cfg_param.max_eq =
5978 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
5979 phba->sli4_hba.max_cfg_param.max_rq =
5980 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
5981 phba->sli4_hba.max_cfg_param.max_wq =
5982 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
5983 phba->sli4_hba.max_cfg_param.max_cq =
5984 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
5985 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
5986 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
5987 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
5988 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5989 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
5990 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
5991 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
5992 phba->max_vports = phba->max_vpi;
5993 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5994 "2003 cfg params Extents? %d "
5995 "XRI(B:%d M:%d), "
5996 "VPI(B:%d M:%d) "
5997 "VFI(B:%d M:%d) "
5998 "RPI(B:%d M:%d) "
5999 "FCFI(Count:%d)\n",
6000 phba->sli4_hba.extents_in_use,
6001 phba->sli4_hba.max_cfg_param.xri_base,
6002 phba->sli4_hba.max_cfg_param.max_xri,
6003 phba->sli4_hba.max_cfg_param.vpi_base,
6004 phba->sli4_hba.max_cfg_param.max_vpi,
6005 phba->sli4_hba.max_cfg_param.vfi_base,
6006 phba->sli4_hba.max_cfg_param.max_vfi,
6007 phba->sli4_hba.max_cfg_param.rpi_base,
6008 phba->sli4_hba.max_cfg_param.max_rpi,
6009 phba->sli4_hba.max_cfg_param.max_fcfi);
6012 if (rc)
6013 goto read_cfg_out;
6015 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
6016 if (phba->cfg_hba_queue_depth >
6017 (phba->sli4_hba.max_cfg_param.max_xri -
6018 lpfc_sli4_get_els_iocb_cnt(phba)))
6019 phba->cfg_hba_queue_depth =
6020 phba->sli4_hba.max_cfg_param.max_xri -
6021 lpfc_sli4_get_els_iocb_cnt(phba);
6023 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6024 LPFC_SLI_INTF_IF_TYPE_2)
6025 goto read_cfg_out;
6027 /* get the pf# and vf# for SLI4 if_type 2 port */
6028 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6029 sizeof(struct lpfc_sli4_cfg_mhdr));
6030 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6031 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6032 length, LPFC_SLI4_MBX_EMBED);
6034 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6035 shdr = (union lpfc_sli4_cfg_shdr *)
6036 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6037 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6038 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6039 if (rc || shdr_status || shdr_add_status) {
6040 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6041 "3026 Mailbox failed , mbxCmd x%x "
6042 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6043 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6044 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6045 rc = -EIO;
6046 goto read_cfg_out;
6049 /* search for fc_fcoe resrouce descriptor */
6050 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6051 desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6053 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6054 desc = (struct lpfc_rsrc_desc_fcfcoe *)
6055 &get_func_cfg->func_cfg.desc[i];
6056 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6057 bf_get(lpfc_rsrc_desc_pcie_type, desc)) {
6058 phba->sli4_hba.iov.pf_number =
6059 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6060 phba->sli4_hba.iov.vf_number =
6061 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6062 break;
6066 if (i < LPFC_RSRC_DESC_MAX_NUM)
6067 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6068 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6069 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6070 phba->sli4_hba.iov.vf_number);
6071 else {
6072 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6073 "3028 GET_FUNCTION_CONFIG: failed to find "
6074 "Resrouce Descriptor:x%x\n",
6075 LPFC_RSRC_DESC_TYPE_FCFCOE);
6076 rc = -EIO;
6079 read_cfg_out:
6080 mempool_free(pmb, phba->mbox_mem_pool);
6081 return rc;
6085 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6086 * @phba: pointer to lpfc hba data structure.
6088 * This routine is invoked to setup the port-side endian order when
6089 * the port if_type is 0. This routine has no function for other
6090 * if_types.
6092 * Return codes
6093 * 0 - successful
6094 * -ENOMEM - No available memory
6095 * -EIO - The mailbox failed to complete successfully.
6097 static int
6098 lpfc_setup_endian_order(struct lpfc_hba *phba)
6100 LPFC_MBOXQ_t *mboxq;
6101 uint32_t if_type, rc = 0;
6102 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6103 HOST_ENDIAN_HIGH_WORD1};
6105 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6106 switch (if_type) {
6107 case LPFC_SLI_INTF_IF_TYPE_0:
6108 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6109 GFP_KERNEL);
6110 if (!mboxq) {
6111 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6112 "0492 Unable to allocate memory for "
6113 "issuing SLI_CONFIG_SPECIAL mailbox "
6114 "command\n");
6115 return -ENOMEM;
6119 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6120 * two words to contain special data values and no other data.
6122 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6123 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6124 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6125 if (rc != MBX_SUCCESS) {
6126 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6127 "0493 SLI_CONFIG_SPECIAL mailbox "
6128 "failed with status x%x\n",
6129 rc);
6130 rc = -EIO;
6132 mempool_free(mboxq, phba->mbox_mem_pool);
6133 break;
6134 case LPFC_SLI_INTF_IF_TYPE_2:
6135 case LPFC_SLI_INTF_IF_TYPE_1:
6136 default:
6137 break;
6139 return rc;
6143 * lpfc_sli4_queue_create - Create all the SLI4 queues
6144 * @phba: pointer to lpfc hba data structure.
6146 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6147 * operation. For each SLI4 queue type, the parameters such as queue entry
6148 * count (queue depth) shall be taken from the module parameter. For now,
6149 * we just use some constant number as place holder.
6151 * Return codes
6152 * 0 - successful
6153 * -ENOMEM - No available memory
6154 * -EIO - The mailbox failed to complete successfully.
6156 static int
6157 lpfc_sli4_queue_create(struct lpfc_hba *phba)
6159 struct lpfc_queue *qdesc;
6160 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6161 int cfg_fcp_wq_count;
6162 int cfg_fcp_eq_count;
6165 * Sanity check for confiugred queue parameters against the run-time
6166 * device parameters
6169 /* Sanity check on FCP fast-path WQ parameters */
6170 cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
6171 if (cfg_fcp_wq_count >
6172 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
6173 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
6174 LPFC_SP_WQN_DEF;
6175 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
6176 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6177 "2581 Not enough WQs (%d) from "
6178 "the pci function for supporting "
6179 "FCP WQs (%d)\n",
6180 phba->sli4_hba.max_cfg_param.max_wq,
6181 phba->cfg_fcp_wq_count);
6182 goto out_error;
6184 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6185 "2582 Not enough WQs (%d) from the pci "
6186 "function for supporting the requested "
6187 "FCP WQs (%d), the actual FCP WQs can "
6188 "be supported: %d\n",
6189 phba->sli4_hba.max_cfg_param.max_wq,
6190 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
6192 /* The actual number of FCP work queues adopted */
6193 phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
6195 /* Sanity check on FCP fast-path EQ parameters */
6196 cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
6197 if (cfg_fcp_eq_count >
6198 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
6199 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
6200 LPFC_SP_EQN_DEF;
6201 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
6202 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6203 "2574 Not enough EQs (%d) from the "
6204 "pci function for supporting FCP "
6205 "EQs (%d)\n",
6206 phba->sli4_hba.max_cfg_param.max_eq,
6207 phba->cfg_fcp_eq_count);
6208 goto out_error;
6210 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6211 "2575 Not enough EQs (%d) from the pci "
6212 "function for supporting the requested "
6213 "FCP EQs (%d), the actual FCP EQs can "
6214 "be supported: %d\n",
6215 phba->sli4_hba.max_cfg_param.max_eq,
6216 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
6218 /* It does not make sense to have more EQs than WQs */
6219 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
6220 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6221 "2593 The FCP EQ count(%d) cannot be greater "
6222 "than the FCP WQ count(%d), limiting the "
6223 "FCP EQ count to %d\n", cfg_fcp_eq_count,
6224 phba->cfg_fcp_wq_count,
6225 phba->cfg_fcp_wq_count);
6226 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
6228 /* The actual number of FCP event queues adopted */
6229 phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
6230 /* The overall number of event queues used */
6231 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
6234 * Create Event Queues (EQs)
6237 /* Get EQ depth from module parameter, fake the default for now */
6238 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6239 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
6241 /* Create slow path event queue */
6242 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6243 phba->sli4_hba.eq_ecount);
6244 if (!qdesc) {
6245 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6246 "0496 Failed allocate slow-path EQ\n");
6247 goto out_error;
6249 phba->sli4_hba.sp_eq = qdesc;
6251 /* Create fast-path FCP Event Queue(s) */
6252 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
6253 phba->cfg_fcp_eq_count), GFP_KERNEL);
6254 if (!phba->sli4_hba.fp_eq) {
6255 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6256 "2576 Failed allocate memory for fast-path "
6257 "EQ record array\n");
6258 goto out_free_sp_eq;
6260 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6261 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6262 phba->sli4_hba.eq_ecount);
6263 if (!qdesc) {
6264 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6265 "0497 Failed allocate fast-path EQ\n");
6266 goto out_free_fp_eq;
6268 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
6272 * Create Complete Queues (CQs)
6275 /* Get CQ depth from module parameter, fake the default for now */
6276 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6277 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6279 /* Create slow-path Mailbox Command Complete Queue */
6280 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6281 phba->sli4_hba.cq_ecount);
6282 if (!qdesc) {
6283 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6284 "0500 Failed allocate slow-path mailbox CQ\n");
6285 goto out_free_fp_eq;
6287 phba->sli4_hba.mbx_cq = qdesc;
6289 /* Create slow-path ELS Complete Queue */
6290 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6291 phba->sli4_hba.cq_ecount);
6292 if (!qdesc) {
6293 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6294 "0501 Failed allocate slow-path ELS CQ\n");
6295 goto out_free_mbx_cq;
6297 phba->sli4_hba.els_cq = qdesc;
6300 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
6301 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6302 phba->cfg_fcp_eq_count), GFP_KERNEL);
6303 if (!phba->sli4_hba.fcp_cq) {
6304 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6305 "2577 Failed allocate memory for fast-path "
6306 "CQ record array\n");
6307 goto out_free_els_cq;
6309 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6310 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6311 phba->sli4_hba.cq_ecount);
6312 if (!qdesc) {
6313 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6314 "0499 Failed allocate fast-path FCP "
6315 "CQ (%d)\n", fcp_cqidx);
6316 goto out_free_fcp_cq;
6318 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
6321 /* Create Mailbox Command Queue */
6322 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6323 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6325 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
6326 phba->sli4_hba.mq_ecount);
6327 if (!qdesc) {
6328 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6329 "0505 Failed allocate slow-path MQ\n");
6330 goto out_free_fcp_cq;
6332 phba->sli4_hba.mbx_wq = qdesc;
6335 * Create all the Work Queues (WQs)
6337 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6338 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6340 /* Create slow-path ELS Work Queue */
6341 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6342 phba->sli4_hba.wq_ecount);
6343 if (!qdesc) {
6344 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6345 "0504 Failed allocate slow-path ELS WQ\n");
6346 goto out_free_mbx_wq;
6348 phba->sli4_hba.els_wq = qdesc;
6350 /* Create fast-path FCP Work Queue(s) */
6351 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6352 phba->cfg_fcp_wq_count), GFP_KERNEL);
6353 if (!phba->sli4_hba.fcp_wq) {
6354 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6355 "2578 Failed allocate memory for fast-path "
6356 "WQ record array\n");
6357 goto out_free_els_wq;
6359 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6360 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6361 phba->sli4_hba.wq_ecount);
6362 if (!qdesc) {
6363 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6364 "0503 Failed allocate fast-path FCP "
6365 "WQ (%d)\n", fcp_wqidx);
6366 goto out_free_fcp_wq;
6368 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
6372 * Create Receive Queue (RQ)
6374 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6375 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6377 /* Create Receive Queue for header */
6378 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6379 phba->sli4_hba.rq_ecount);
6380 if (!qdesc) {
6381 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6382 "0506 Failed allocate receive HRQ\n");
6383 goto out_free_fcp_wq;
6385 phba->sli4_hba.hdr_rq = qdesc;
6387 /* Create Receive Queue for data */
6388 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6389 phba->sli4_hba.rq_ecount);
6390 if (!qdesc) {
6391 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6392 "0507 Failed allocate receive DRQ\n");
6393 goto out_free_hdr_rq;
6395 phba->sli4_hba.dat_rq = qdesc;
6397 return 0;
6399 out_free_hdr_rq:
6400 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6401 phba->sli4_hba.hdr_rq = NULL;
6402 out_free_fcp_wq:
6403 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
6404 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
6405 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
6407 kfree(phba->sli4_hba.fcp_wq);
6408 out_free_els_wq:
6409 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6410 phba->sli4_hba.els_wq = NULL;
6411 out_free_mbx_wq:
6412 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6413 phba->sli4_hba.mbx_wq = NULL;
6414 out_free_fcp_cq:
6415 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
6416 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
6417 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
6419 kfree(phba->sli4_hba.fcp_cq);
6420 out_free_els_cq:
6421 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6422 phba->sli4_hba.els_cq = NULL;
6423 out_free_mbx_cq:
6424 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6425 phba->sli4_hba.mbx_cq = NULL;
6426 out_free_fp_eq:
6427 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
6428 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
6429 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
6431 kfree(phba->sli4_hba.fp_eq);
6432 out_free_sp_eq:
6433 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6434 phba->sli4_hba.sp_eq = NULL;
6435 out_error:
6436 return -ENOMEM;
6440 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6441 * @phba: pointer to lpfc hba data structure.
6443 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6444 * operation.
6446 * Return codes
6447 * 0 - successful
6448 * -ENOMEM - No available memory
6449 * -EIO - The mailbox failed to complete successfully.
6451 static void
6452 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
6454 int fcp_qidx;
6456 /* Release mailbox command work queue */
6457 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6458 phba->sli4_hba.mbx_wq = NULL;
6460 /* Release ELS work queue */
6461 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6462 phba->sli4_hba.els_wq = NULL;
6464 /* Release FCP work queue */
6465 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6466 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
6467 kfree(phba->sli4_hba.fcp_wq);
6468 phba->sli4_hba.fcp_wq = NULL;
6470 /* Release unsolicited receive queue */
6471 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6472 phba->sli4_hba.hdr_rq = NULL;
6473 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
6474 phba->sli4_hba.dat_rq = NULL;
6476 /* Release ELS complete queue */
6477 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6478 phba->sli4_hba.els_cq = NULL;
6480 /* Release mailbox command complete queue */
6481 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6482 phba->sli4_hba.mbx_cq = NULL;
6484 /* Release FCP response complete queue */
6485 fcp_qidx = 0;
6487 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
6488 while (++fcp_qidx < phba->cfg_fcp_eq_count);
6489 kfree(phba->sli4_hba.fcp_cq);
6490 phba->sli4_hba.fcp_cq = NULL;
6492 /* Release fast-path event queue */
6493 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6494 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
6495 kfree(phba->sli4_hba.fp_eq);
6496 phba->sli4_hba.fp_eq = NULL;
6498 /* Release slow-path event queue */
6499 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6500 phba->sli4_hba.sp_eq = NULL;
6502 return;
6506 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
6507 * @phba: pointer to lpfc hba data structure.
6509 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
6510 * operation.
6512 * Return codes
6513 * 0 - successful
6514 * -ENOMEM - No available memory
6515 * -EIO - The mailbox failed to complete successfully.
6518 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
6520 int rc = -ENOMEM;
6521 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6522 int fcp_cq_index = 0;
6525 * Set up Event Queues (EQs)
6528 /* Set up slow-path event queue */
6529 if (!phba->sli4_hba.sp_eq) {
6530 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6531 "0520 Slow-path EQ not allocated\n");
6532 goto out_error;
6534 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
6535 LPFC_SP_DEF_IMAX);
6536 if (rc) {
6537 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6538 "0521 Failed setup of slow-path EQ: "
6539 "rc = 0x%x\n", rc);
6540 goto out_error;
6542 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6543 "2583 Slow-path EQ setup: queue-id=%d\n",
6544 phba->sli4_hba.sp_eq->queue_id);
6546 /* Set up fast-path event queue */
6547 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6548 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
6549 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6550 "0522 Fast-path EQ (%d) not "
6551 "allocated\n", fcp_eqidx);
6552 goto out_destroy_fp_eq;
6554 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
6555 phba->cfg_fcp_imax);
6556 if (rc) {
6557 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6558 "0523 Failed setup of fast-path EQ "
6559 "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6560 goto out_destroy_fp_eq;
6562 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6563 "2584 Fast-path EQ setup: "
6564 "queue[%d]-id=%d\n", fcp_eqidx,
6565 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
6569 * Set up Complete Queues (CQs)
6572 /* Set up slow-path MBOX Complete Queue as the first CQ */
6573 if (!phba->sli4_hba.mbx_cq) {
6574 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6575 "0528 Mailbox CQ not allocated\n");
6576 goto out_destroy_fp_eq;
6578 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
6579 LPFC_MCQ, LPFC_MBOX);
6580 if (rc) {
6581 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6582 "0529 Failed setup of slow-path mailbox CQ: "
6583 "rc = 0x%x\n", rc);
6584 goto out_destroy_fp_eq;
6586 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6587 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6588 phba->sli4_hba.mbx_cq->queue_id,
6589 phba->sli4_hba.sp_eq->queue_id);
6591 /* Set up slow-path ELS Complete Queue */
6592 if (!phba->sli4_hba.els_cq) {
6593 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6594 "0530 ELS CQ not allocated\n");
6595 goto out_destroy_mbx_cq;
6597 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
6598 LPFC_WCQ, LPFC_ELS);
6599 if (rc) {
6600 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6601 "0531 Failed setup of slow-path ELS CQ: "
6602 "rc = 0x%x\n", rc);
6603 goto out_destroy_mbx_cq;
6605 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6606 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6607 phba->sli4_hba.els_cq->queue_id,
6608 phba->sli4_hba.sp_eq->queue_id);
6610 /* Set up fast-path FCP Response Complete Queue */
6611 fcp_cqidx = 0;
6612 do {
6613 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6614 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6615 "0526 Fast-path FCP CQ (%d) not "
6616 "allocated\n", fcp_cqidx);
6617 goto out_destroy_fcp_cq;
6619 if (phba->cfg_fcp_eq_count)
6620 rc = lpfc_cq_create(phba,
6621 phba->sli4_hba.fcp_cq[fcp_cqidx],
6622 phba->sli4_hba.fp_eq[fcp_cqidx],
6623 LPFC_WCQ, LPFC_FCP);
6624 else
6625 rc = lpfc_cq_create(phba,
6626 phba->sli4_hba.fcp_cq[fcp_cqidx],
6627 phba->sli4_hba.sp_eq,
6628 LPFC_WCQ, LPFC_FCP);
6629 if (rc) {
6630 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6631 "0527 Failed setup of fast-path FCP "
6632 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6633 goto out_destroy_fcp_cq;
6635 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6636 "2588 FCP CQ setup: cq[%d]-id=%d, "
6637 "parent %seq[%d]-id=%d\n",
6638 fcp_cqidx,
6639 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
6640 (phba->cfg_fcp_eq_count) ? "" : "sp_",
6641 fcp_cqidx,
6642 (phba->cfg_fcp_eq_count) ?
6643 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id :
6644 phba->sli4_hba.sp_eq->queue_id);
6645 } while (++fcp_cqidx < phba->cfg_fcp_eq_count);
6648 * Set up all the Work Queues (WQs)
6651 /* Set up Mailbox Command Queue */
6652 if (!phba->sli4_hba.mbx_wq) {
6653 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6654 "0538 Slow-path MQ not allocated\n");
6655 goto out_destroy_fcp_cq;
6657 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
6658 phba->sli4_hba.mbx_cq, LPFC_MBOX);
6659 if (rc) {
6660 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6661 "0539 Failed setup of slow-path MQ: "
6662 "rc = 0x%x\n", rc);
6663 goto out_destroy_fcp_cq;
6665 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6666 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6667 phba->sli4_hba.mbx_wq->queue_id,
6668 phba->sli4_hba.mbx_cq->queue_id);
6670 /* Set up slow-path ELS Work Queue */
6671 if (!phba->sli4_hba.els_wq) {
6672 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6673 "0536 Slow-path ELS WQ not allocated\n");
6674 goto out_destroy_mbx_wq;
6676 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
6677 phba->sli4_hba.els_cq, LPFC_ELS);
6678 if (rc) {
6679 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6680 "0537 Failed setup of slow-path ELS WQ: "
6681 "rc = 0x%x\n", rc);
6682 goto out_destroy_mbx_wq;
6684 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6685 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6686 phba->sli4_hba.els_wq->queue_id,
6687 phba->sli4_hba.els_cq->queue_id);
6689 /* Set up fast-path FCP Work Queue */
6690 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6691 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
6692 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6693 "0534 Fast-path FCP WQ (%d) not "
6694 "allocated\n", fcp_wqidx);
6695 goto out_destroy_fcp_wq;
6697 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
6698 phba->sli4_hba.fcp_cq[fcp_cq_index],
6699 LPFC_FCP);
6700 if (rc) {
6701 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6702 "0535 Failed setup of fast-path FCP "
6703 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
6704 goto out_destroy_fcp_wq;
6706 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6707 "2591 FCP WQ setup: wq[%d]-id=%d, "
6708 "parent cq[%d]-id=%d\n",
6709 fcp_wqidx,
6710 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
6711 fcp_cq_index,
6712 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
6713 /* Round robin FCP Work Queue's Completion Queue assignment */
6714 if (phba->cfg_fcp_eq_count)
6715 fcp_cq_index = ((fcp_cq_index + 1) %
6716 phba->cfg_fcp_eq_count);
6720 * Create Receive Queue (RQ)
6722 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
6723 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6724 "0540 Receive Queue not allocated\n");
6725 goto out_destroy_fcp_wq;
6727 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
6728 phba->sli4_hba.els_cq, LPFC_USOL);
6729 if (rc) {
6730 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6731 "0541 Failed setup of Receive Queue: "
6732 "rc = 0x%x\n", rc);
6733 goto out_destroy_fcp_wq;
6735 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6736 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6737 "parent cq-id=%d\n",
6738 phba->sli4_hba.hdr_rq->queue_id,
6739 phba->sli4_hba.dat_rq->queue_id,
6740 phba->sli4_hba.els_cq->queue_id);
6741 return 0;
6743 out_destroy_fcp_wq:
6744 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
6745 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6746 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6747 out_destroy_mbx_wq:
6748 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6749 out_destroy_fcp_cq:
6750 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
6751 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
6752 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6753 out_destroy_mbx_cq:
6754 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6755 out_destroy_fp_eq:
6756 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
6757 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6758 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6759 out_error:
6760 return rc;
6764 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6765 * @phba: pointer to lpfc hba data structure.
6767 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6768 * operation.
6770 * Return codes
6771 * 0 - successful
6772 * -ENOMEM - No available memory
6773 * -EIO - The mailbox failed to complete successfully.
6775 void
6776 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
6778 int fcp_qidx;
6780 /* Unset mailbox command work queue */
6781 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6782 /* Unset ELS work queue */
6783 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6784 /* Unset unsolicited receive queue */
6785 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
6786 /* Unset FCP work queue */
6787 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6788 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
6789 /* Unset mailbox command complete queue */
6790 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6791 /* Unset ELS complete queue */
6792 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6793 /* Unset FCP response complete queue */
6794 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6795 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
6796 /* Unset fast-path event queue */
6797 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6798 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
6799 /* Unset slow-path event queue */
6800 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6804 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6805 * @phba: pointer to lpfc hba data structure.
6807 * This routine is invoked to allocate and set up a pool of completion queue
6808 * events. The body of the completion queue event is a completion queue entry
6809 * CQE. For now, this pool is used for the interrupt service routine to queue
6810 * the following HBA completion queue events for the worker thread to process:
6811 * - Mailbox asynchronous events
6812 * - Receive queue completion unsolicited events
6813 * Later, this can be used for all the slow-path events.
6815 * Return codes
6816 * 0 - successful
6817 * -ENOMEM - No available memory
6819 static int
6820 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
6822 struct lpfc_cq_event *cq_event;
6823 int i;
6825 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
6826 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
6827 if (!cq_event)
6828 goto out_pool_create_fail;
6829 list_add_tail(&cq_event->list,
6830 &phba->sli4_hba.sp_cqe_event_pool);
6832 return 0;
6834 out_pool_create_fail:
6835 lpfc_sli4_cq_event_pool_destroy(phba);
6836 return -ENOMEM;
6840 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6841 * @phba: pointer to lpfc hba data structure.
6843 * This routine is invoked to free the pool of completion queue events at
6844 * driver unload time. Note that, it is the responsibility of the driver
6845 * cleanup routine to free all the outstanding completion-queue events
6846 * allocated from this pool back into the pool before invoking this routine
6847 * to destroy the pool.
6849 static void
6850 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
6852 struct lpfc_cq_event *cq_event, *next_cq_event;
6854 list_for_each_entry_safe(cq_event, next_cq_event,
6855 &phba->sli4_hba.sp_cqe_event_pool, list) {
6856 list_del(&cq_event->list);
6857 kfree(cq_event);
6862 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6863 * @phba: pointer to lpfc hba data structure.
6865 * This routine is the lock free version of the API invoked to allocate a
6866 * completion-queue event from the free pool.
6868 * Return: Pointer to the newly allocated completion-queue event if successful
6869 * NULL otherwise.
6871 struct lpfc_cq_event *
6872 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6874 struct lpfc_cq_event *cq_event = NULL;
6876 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
6877 struct lpfc_cq_event, list);
6878 return cq_event;
6882 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6883 * @phba: pointer to lpfc hba data structure.
6885 * This routine is the lock version of the API invoked to allocate a
6886 * completion-queue event from the free pool.
6888 * Return: Pointer to the newly allocated completion-queue event if successful
6889 * NULL otherwise.
6891 struct lpfc_cq_event *
6892 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6894 struct lpfc_cq_event *cq_event;
6895 unsigned long iflags;
6897 spin_lock_irqsave(&phba->hbalock, iflags);
6898 cq_event = __lpfc_sli4_cq_event_alloc(phba);
6899 spin_unlock_irqrestore(&phba->hbalock, iflags);
6900 return cq_event;
6904 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6905 * @phba: pointer to lpfc hba data structure.
6906 * @cq_event: pointer to the completion queue event to be freed.
6908 * This routine is the lock free version of the API invoked to release a
6909 * completion-queue event back into the free pool.
6911 void
6912 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6913 struct lpfc_cq_event *cq_event)
6915 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
6919 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6920 * @phba: pointer to lpfc hba data structure.
6921 * @cq_event: pointer to the completion queue event to be freed.
6923 * This routine is the lock version of the API invoked to release a
6924 * completion-queue event back into the free pool.
6926 void
6927 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6928 struct lpfc_cq_event *cq_event)
6930 unsigned long iflags;
6931 spin_lock_irqsave(&phba->hbalock, iflags);
6932 __lpfc_sli4_cq_event_release(phba, cq_event);
6933 spin_unlock_irqrestore(&phba->hbalock, iflags);
6937 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6938 * @phba: pointer to lpfc hba data structure.
6940 * This routine is to free all the pending completion-queue events to the
6941 * back into the free pool for device reset.
6943 static void
6944 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
6946 LIST_HEAD(cqelist);
6947 struct lpfc_cq_event *cqe;
6948 unsigned long iflags;
6950 /* Retrieve all the pending WCQEs from pending WCQE lists */
6951 spin_lock_irqsave(&phba->hbalock, iflags);
6952 /* Pending FCP XRI abort events */
6953 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
6954 &cqelist);
6955 /* Pending ELS XRI abort events */
6956 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
6957 &cqelist);
6958 /* Pending asynnc events */
6959 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
6960 &cqelist);
6961 spin_unlock_irqrestore(&phba->hbalock, iflags);
6963 while (!list_empty(&cqelist)) {
6964 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
6965 lpfc_sli4_cq_event_release(phba, cqe);
6970 * lpfc_pci_function_reset - Reset pci function.
6971 * @phba: pointer to lpfc hba data structure.
6973 * This routine is invoked to request a PCI function reset. It will destroys
6974 * all resources assigned to the PCI function which originates this request.
6976 * Return codes
6977 * 0 - successful
6978 * -ENOMEM - No available memory
6979 * -EIO - The mailbox failed to complete successfully.
6982 lpfc_pci_function_reset(struct lpfc_hba *phba)
6984 LPFC_MBOXQ_t *mboxq;
6985 uint32_t rc = 0, if_type;
6986 uint32_t shdr_status, shdr_add_status;
6987 uint32_t rdy_chk, num_resets = 0, reset_again = 0;
6988 union lpfc_sli4_cfg_shdr *shdr;
6989 struct lpfc_register reg_data;
6991 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6992 switch (if_type) {
6993 case LPFC_SLI_INTF_IF_TYPE_0:
6994 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6995 GFP_KERNEL);
6996 if (!mboxq) {
6997 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6998 "0494 Unable to allocate memory for "
6999 "issuing SLI_FUNCTION_RESET mailbox "
7000 "command\n");
7001 return -ENOMEM;
7004 /* Setup PCI function reset mailbox-ioctl command */
7005 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7006 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
7007 LPFC_SLI4_MBX_EMBED);
7008 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7009 shdr = (union lpfc_sli4_cfg_shdr *)
7010 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7011 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7012 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7013 &shdr->response);
7014 if (rc != MBX_TIMEOUT)
7015 mempool_free(mboxq, phba->mbox_mem_pool);
7016 if (shdr_status || shdr_add_status || rc) {
7017 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7018 "0495 SLI_FUNCTION_RESET mailbox "
7019 "failed with status x%x add_status x%x,"
7020 " mbx status x%x\n",
7021 shdr_status, shdr_add_status, rc);
7022 rc = -ENXIO;
7024 break;
7025 case LPFC_SLI_INTF_IF_TYPE_2:
7026 for (num_resets = 0;
7027 num_resets < MAX_IF_TYPE_2_RESETS;
7028 num_resets++) {
7029 reg_data.word0 = 0;
7030 bf_set(lpfc_sliport_ctrl_end, &reg_data,
7031 LPFC_SLIPORT_LITTLE_ENDIAN);
7032 bf_set(lpfc_sliport_ctrl_ip, &reg_data,
7033 LPFC_SLIPORT_INIT_PORT);
7034 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
7035 CTRLregaddr);
7038 * Poll the Port Status Register and wait for RDY for
7039 * up to 10 seconds. If the port doesn't respond, treat
7040 * it as an error. If the port responds with RN, start
7041 * the loop again.
7043 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
7044 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7045 STATUSregaddr, &reg_data.word0)) {
7046 rc = -ENODEV;
7047 break;
7049 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
7050 break;
7051 if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
7052 reset_again++;
7053 break;
7055 msleep(10);
7059 * If the port responds to the init request with
7060 * reset needed, delay for a bit and restart the loop.
7062 if (reset_again) {
7063 msleep(10);
7064 reset_again = 0;
7065 continue;
7068 /* Detect any port errors. */
7069 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7070 &reg_data.word0)) {
7071 rc = -ENODEV;
7072 break;
7074 if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
7075 (rdy_chk >= 1000)) {
7076 phba->work_status[0] = readl(
7077 phba->sli4_hba.u.if_type2.ERR1regaddr);
7078 phba->work_status[1] = readl(
7079 phba->sli4_hba.u.if_type2.ERR2regaddr);
7080 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7081 "2890 Port Error Detected "
7082 "during Port Reset: "
7083 "port status reg 0x%x, "
7084 "error 1=0x%x, error 2=0x%x\n",
7085 reg_data.word0,
7086 phba->work_status[0],
7087 phba->work_status[1]);
7088 rc = -ENODEV;
7092 * Terminate the outer loop provided the Port indicated
7093 * ready within 10 seconds.
7095 if (rdy_chk < 1000)
7096 break;
7098 /* delay driver action following IF_TYPE_2 function reset */
7099 msleep(100);
7100 break;
7101 case LPFC_SLI_INTF_IF_TYPE_1:
7102 default:
7103 break;
7106 /* Catch the not-ready port failure after a port reset. */
7107 if (num_resets >= MAX_IF_TYPE_2_RESETS)
7108 rc = -ENODEV;
7110 return rc;
7114 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
7115 * @phba: pointer to lpfc hba data structure.
7116 * @cnt: number of nop mailbox commands to send.
7118 * This routine is invoked to send a number @cnt of NOP mailbox command and
7119 * wait for each command to complete.
7121 * Return: the number of NOP mailbox command completed.
7123 static int
7124 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
7126 LPFC_MBOXQ_t *mboxq;
7127 int length, cmdsent;
7128 uint32_t mbox_tmo;
7129 uint32_t rc = 0;
7130 uint32_t shdr_status, shdr_add_status;
7131 union lpfc_sli4_cfg_shdr *shdr;
7133 if (cnt == 0) {
7134 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7135 "2518 Requested to send 0 NOP mailbox cmd\n");
7136 return cnt;
7139 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7140 if (!mboxq) {
7141 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7142 "2519 Unable to allocate memory for issuing "
7143 "NOP mailbox command\n");
7144 return 0;
7147 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
7148 length = (sizeof(struct lpfc_mbx_nop) -
7149 sizeof(struct lpfc_sli4_cfg_mhdr));
7150 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7151 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
7153 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
7154 for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
7155 if (!phba->sli4_hba.intr_enable)
7156 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7157 else
7158 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7159 if (rc == MBX_TIMEOUT)
7160 break;
7161 /* Check return status */
7162 shdr = (union lpfc_sli4_cfg_shdr *)
7163 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7164 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7165 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7166 &shdr->response);
7167 if (shdr_status || shdr_add_status || rc) {
7168 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7169 "2520 NOP mailbox command failed "
7170 "status x%x add_status x%x mbx "
7171 "status x%x\n", shdr_status,
7172 shdr_add_status, rc);
7173 break;
7177 if (rc != MBX_TIMEOUT)
7178 mempool_free(mboxq, phba->mbox_mem_pool);
7180 return cmdsent;
7184 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7185 * @phba: pointer to lpfc hba data structure.
7187 * This routine is invoked to set up the PCI device memory space for device
7188 * with SLI-4 interface spec.
7190 * Return codes
7191 * 0 - successful
7192 * other values - error
7194 static int
7195 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
7197 struct pci_dev *pdev;
7198 unsigned long bar0map_len, bar1map_len, bar2map_len;
7199 int error = -ENODEV;
7200 uint32_t if_type;
7202 /* Obtain PCI device reference */
7203 if (!phba->pcidev)
7204 return error;
7205 else
7206 pdev = phba->pcidev;
7208 /* Set the device DMA mask size */
7209 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7210 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7211 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7212 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
7213 return error;
7218 * The BARs and register set definitions and offset locations are
7219 * dependent on the if_type.
7221 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7222 &phba->sli4_hba.sli_intf.word0)) {
7223 return error;
7226 /* There is no SLI3 failback for SLI4 devices. */
7227 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7228 LPFC_SLI_INTF_VALID) {
7229 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7230 "2894 SLI_INTF reg contents invalid "
7231 "sli_intf reg 0x%x\n",
7232 phba->sli4_hba.sli_intf.word0);
7233 return error;
7236 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7238 * Get the bus address of SLI4 device Bar regions and the
7239 * number of bytes required by each mapping. The mapping of the
7240 * particular PCI BARs regions is dependent on the type of
7241 * SLI4 device.
7243 if (pci_resource_start(pdev, 0)) {
7244 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7245 bar0map_len = pci_resource_len(pdev, 0);
7248 * Map SLI4 PCI Config Space Register base to a kernel virtual
7249 * addr
7251 phba->sli4_hba.conf_regs_memmap_p =
7252 ioremap(phba->pci_bar0_map, bar0map_len);
7253 if (!phba->sli4_hba.conf_regs_memmap_p) {
7254 dev_printk(KERN_ERR, &pdev->dev,
7255 "ioremap failed for SLI4 PCI config "
7256 "registers.\n");
7257 goto out;
7259 /* Set up BAR0 PCI config space register memory map */
7260 lpfc_sli4_bar0_register_memmap(phba, if_type);
7261 } else {
7262 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7263 bar0map_len = pci_resource_len(pdev, 1);
7264 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7265 dev_printk(KERN_ERR, &pdev->dev,
7266 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7267 goto out;
7269 phba->sli4_hba.conf_regs_memmap_p =
7270 ioremap(phba->pci_bar0_map, bar0map_len);
7271 if (!phba->sli4_hba.conf_regs_memmap_p) {
7272 dev_printk(KERN_ERR, &pdev->dev,
7273 "ioremap failed for SLI4 PCI config "
7274 "registers.\n");
7275 goto out;
7277 lpfc_sli4_bar0_register_memmap(phba, if_type);
7280 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7281 (pci_resource_start(pdev, 2))) {
7283 * Map SLI4 if type 0 HBA Control Register base to a kernel
7284 * virtual address and setup the registers.
7286 phba->pci_bar1_map = pci_resource_start(pdev, 2);
7287 bar1map_len = pci_resource_len(pdev, 2);
7288 phba->sli4_hba.ctrl_regs_memmap_p =
7289 ioremap(phba->pci_bar1_map, bar1map_len);
7290 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7291 dev_printk(KERN_ERR, &pdev->dev,
7292 "ioremap failed for SLI4 HBA control registers.\n");
7293 goto out_iounmap_conf;
7295 lpfc_sli4_bar1_register_memmap(phba);
7298 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7299 (pci_resource_start(pdev, 4))) {
7301 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7302 * virtual address and setup the registers.
7304 phba->pci_bar2_map = pci_resource_start(pdev, 4);
7305 bar2map_len = pci_resource_len(pdev, 4);
7306 phba->sli4_hba.drbl_regs_memmap_p =
7307 ioremap(phba->pci_bar2_map, bar2map_len);
7308 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7309 dev_printk(KERN_ERR, &pdev->dev,
7310 "ioremap failed for SLI4 HBA doorbell registers.\n");
7311 goto out_iounmap_ctrl;
7313 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7314 if (error)
7315 goto out_iounmap_all;
7318 return 0;
7320 out_iounmap_all:
7321 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7322 out_iounmap_ctrl:
7323 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7324 out_iounmap_conf:
7325 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7326 out:
7327 return error;
7331 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7332 * @phba: pointer to lpfc hba data structure.
7334 * This routine is invoked to unset the PCI device memory space for device
7335 * with SLI-4 interface spec.
7337 static void
7338 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
7340 struct pci_dev *pdev;
7342 /* Obtain PCI device reference */
7343 if (!phba->pcidev)
7344 return;
7345 else
7346 pdev = phba->pcidev;
7348 /* Free coherent DMA memory allocated */
7350 /* Unmap I/O memory space */
7351 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7352 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7353 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7355 return;
7359 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7360 * @phba: pointer to lpfc hba data structure.
7362 * This routine is invoked to enable the MSI-X interrupt vectors to device
7363 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7364 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7365 * invoked, enables either all or nothing, depending on the current
7366 * availability of PCI vector resources. The device driver is responsible
7367 * for calling the individual request_irq() to register each MSI-X vector
7368 * with a interrupt handler, which is done in this function. Note that
7369 * later when device is unloading, the driver should always call free_irq()
7370 * on all MSI-X vectors it has done request_irq() on before calling
7371 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7372 * will be left with MSI-X enabled and leaks its vectors.
7374 * Return codes
7375 * 0 - successful
7376 * other values - error
7378 static int
7379 lpfc_sli_enable_msix(struct lpfc_hba *phba)
7381 int rc, i;
7382 LPFC_MBOXQ_t *pmb;
7384 /* Set up MSI-X multi-message vectors */
7385 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7386 phba->msix_entries[i].entry = i;
7388 /* Configure MSI-X capability structure */
7389 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
7390 ARRAY_SIZE(phba->msix_entries));
7391 if (rc) {
7392 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7393 "0420 PCI enable MSI-X failed (%d)\n", rc);
7394 goto msi_fail_out;
7396 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7397 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7398 "0477 MSI-X entry[%d]: vector=x%x "
7399 "message=%d\n", i,
7400 phba->msix_entries[i].vector,
7401 phba->msix_entries[i].entry);
7403 * Assign MSI-X vectors to interrupt handlers
7406 /* vector-0 is associated to slow-path handler */
7407 rc = request_irq(phba->msix_entries[0].vector,
7408 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
7409 LPFC_SP_DRIVER_HANDLER_NAME, phba);
7410 if (rc) {
7411 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7412 "0421 MSI-X slow-path request_irq failed "
7413 "(%d)\n", rc);
7414 goto msi_fail_out;
7417 /* vector-1 is associated to fast-path handler */
7418 rc = request_irq(phba->msix_entries[1].vector,
7419 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
7420 LPFC_FP_DRIVER_HANDLER_NAME, phba);
7422 if (rc) {
7423 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7424 "0429 MSI-X fast-path request_irq failed "
7425 "(%d)\n", rc);
7426 goto irq_fail_out;
7430 * Configure HBA MSI-X attention conditions to messages
7432 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7434 if (!pmb) {
7435 rc = -ENOMEM;
7436 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7437 "0474 Unable to allocate memory for issuing "
7438 "MBOX_CONFIG_MSI command\n");
7439 goto mem_fail_out;
7441 rc = lpfc_config_msi(phba, pmb);
7442 if (rc)
7443 goto mbx_fail_out;
7444 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7445 if (rc != MBX_SUCCESS) {
7446 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
7447 "0351 Config MSI mailbox command failed, "
7448 "mbxCmd x%x, mbxStatus x%x\n",
7449 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
7450 goto mbx_fail_out;
7453 /* Free memory allocated for mailbox command */
7454 mempool_free(pmb, phba->mbox_mem_pool);
7455 return rc;
7457 mbx_fail_out:
7458 /* Free memory allocated for mailbox command */
7459 mempool_free(pmb, phba->mbox_mem_pool);
7461 mem_fail_out:
7462 /* free the irq already requested */
7463 free_irq(phba->msix_entries[1].vector, phba);
7465 irq_fail_out:
7466 /* free the irq already requested */
7467 free_irq(phba->msix_entries[0].vector, phba);
7469 msi_fail_out:
7470 /* Unconfigure MSI-X capability structure */
7471 pci_disable_msix(phba->pcidev);
7472 return rc;
7476 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
7477 * @phba: pointer to lpfc hba data structure.
7479 * This routine is invoked to release the MSI-X vectors and then disable the
7480 * MSI-X interrupt mode to device with SLI-3 interface spec.
7482 static void
7483 lpfc_sli_disable_msix(struct lpfc_hba *phba)
7485 int i;
7487 /* Free up MSI-X multi-message vectors */
7488 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7489 free_irq(phba->msix_entries[i].vector, phba);
7490 /* Disable MSI-X */
7491 pci_disable_msix(phba->pcidev);
7493 return;
7497 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
7498 * @phba: pointer to lpfc hba data structure.
7500 * This routine is invoked to enable the MSI interrupt mode to device with
7501 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
7502 * enable the MSI vector. The device driver is responsible for calling the
7503 * request_irq() to register MSI vector with a interrupt the handler, which
7504 * is done in this function.
7506 * Return codes
7507 * 0 - successful
7508 * other values - error
7510 static int
7511 lpfc_sli_enable_msi(struct lpfc_hba *phba)
7513 int rc;
7515 rc = pci_enable_msi(phba->pcidev);
7516 if (!rc)
7517 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7518 "0462 PCI enable MSI mode success.\n");
7519 else {
7520 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7521 "0471 PCI enable MSI mode failed (%d)\n", rc);
7522 return rc;
7525 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7526 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7527 if (rc) {
7528 pci_disable_msi(phba->pcidev);
7529 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7530 "0478 MSI request_irq failed (%d)\n", rc);
7532 return rc;
7536 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
7537 * @phba: pointer to lpfc hba data structure.
7539 * This routine is invoked to disable the MSI interrupt mode to device with
7540 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
7541 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7542 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7543 * its vector.
7545 static void
7546 lpfc_sli_disable_msi(struct lpfc_hba *phba)
7548 free_irq(phba->pcidev->irq, phba);
7549 pci_disable_msi(phba->pcidev);
7550 return;
7554 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
7555 * @phba: pointer to lpfc hba data structure.
7557 * This routine is invoked to enable device interrupt and associate driver's
7558 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
7559 * spec. Depends on the interrupt mode configured to the driver, the driver
7560 * will try to fallback from the configured interrupt mode to an interrupt
7561 * mode which is supported by the platform, kernel, and device in the order
7562 * of:
7563 * MSI-X -> MSI -> IRQ.
7565 * Return codes
7566 * 0 - successful
7567 * other values - error
7569 static uint32_t
7570 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7572 uint32_t intr_mode = LPFC_INTR_ERROR;
7573 int retval;
7575 if (cfg_mode == 2) {
7576 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
7577 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
7578 if (!retval) {
7579 /* Now, try to enable MSI-X interrupt mode */
7580 retval = lpfc_sli_enable_msix(phba);
7581 if (!retval) {
7582 /* Indicate initialization to MSI-X mode */
7583 phba->intr_type = MSIX;
7584 intr_mode = 2;
7589 /* Fallback to MSI if MSI-X initialization failed */
7590 if (cfg_mode >= 1 && phba->intr_type == NONE) {
7591 retval = lpfc_sli_enable_msi(phba);
7592 if (!retval) {
7593 /* Indicate initialization to MSI mode */
7594 phba->intr_type = MSI;
7595 intr_mode = 1;
7599 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7600 if (phba->intr_type == NONE) {
7601 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7602 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7603 if (!retval) {
7604 /* Indicate initialization to INTx mode */
7605 phba->intr_type = INTx;
7606 intr_mode = 0;
7609 return intr_mode;
7613 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
7614 * @phba: pointer to lpfc hba data structure.
7616 * This routine is invoked to disable device interrupt and disassociate the
7617 * driver's interrupt handler(s) from interrupt vector(s) to device with
7618 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
7619 * release the interrupt vector(s) for the message signaled interrupt.
7621 static void
7622 lpfc_sli_disable_intr(struct lpfc_hba *phba)
7624 /* Disable the currently initialized interrupt mode */
7625 if (phba->intr_type == MSIX)
7626 lpfc_sli_disable_msix(phba);
7627 else if (phba->intr_type == MSI)
7628 lpfc_sli_disable_msi(phba);
7629 else if (phba->intr_type == INTx)
7630 free_irq(phba->pcidev->irq, phba);
7632 /* Reset interrupt management states */
7633 phba->intr_type = NONE;
7634 phba->sli.slistat.sli_intr = 0;
7636 return;
7640 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
7641 * @phba: pointer to lpfc hba data structure.
7643 * This routine is invoked to enable the MSI-X interrupt vectors to device
7644 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
7645 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
7646 * enables either all or nothing, depending on the current availability of
7647 * PCI vector resources. The device driver is responsible for calling the
7648 * individual request_irq() to register each MSI-X vector with a interrupt
7649 * handler, which is done in this function. Note that later when device is
7650 * unloading, the driver should always call free_irq() on all MSI-X vectors
7651 * it has done request_irq() on before calling pci_disable_msix(). Failure
7652 * to do so results in a BUG_ON() and a device will be left with MSI-X
7653 * enabled and leaks its vectors.
7655 * Return codes
7656 * 0 - successful
7657 * other values - error
7659 static int
7660 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
7662 int vectors, rc, index;
7664 /* Set up MSI-X multi-message vectors */
7665 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
7666 phba->sli4_hba.msix_entries[index].entry = index;
7668 /* Configure MSI-X capability structure */
7669 vectors = phba->sli4_hba.cfg_eqn;
7670 enable_msix_vectors:
7671 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
7672 vectors);
7673 if (rc > 1) {
7674 vectors = rc;
7675 goto enable_msix_vectors;
7676 } else if (rc) {
7677 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7678 "0484 PCI enable MSI-X failed (%d)\n", rc);
7679 goto msi_fail_out;
7682 /* Log MSI-X vector assignment */
7683 for (index = 0; index < vectors; index++)
7684 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7685 "0489 MSI-X entry[%d]: vector=x%x "
7686 "message=%d\n", index,
7687 phba->sli4_hba.msix_entries[index].vector,
7688 phba->sli4_hba.msix_entries[index].entry);
7690 * Assign MSI-X vectors to interrupt handlers
7692 if (vectors > 1)
7693 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7694 &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
7695 LPFC_SP_DRIVER_HANDLER_NAME, phba);
7696 else
7697 /* All Interrupts need to be handled by one EQ */
7698 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7699 &lpfc_sli4_intr_handler, IRQF_SHARED,
7700 LPFC_DRIVER_NAME, phba);
7701 if (rc) {
7702 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7703 "0485 MSI-X slow-path request_irq failed "
7704 "(%d)\n", rc);
7705 goto msi_fail_out;
7708 /* The rest of the vector(s) are associated to fast-path handler(s) */
7709 for (index = 1; index < vectors; index++) {
7710 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
7711 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
7712 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
7713 &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
7714 LPFC_FP_DRIVER_HANDLER_NAME,
7715 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7716 if (rc) {
7717 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7718 "0486 MSI-X fast-path (%d) "
7719 "request_irq failed (%d)\n", index, rc);
7720 goto cfg_fail_out;
7723 phba->sli4_hba.msix_vec_nr = vectors;
7725 return rc;
7727 cfg_fail_out:
7728 /* free the irq already requested */
7729 for (--index; index >= 1; index--)
7730 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
7731 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7733 /* free the irq already requested */
7734 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7736 msi_fail_out:
7737 /* Unconfigure MSI-X capability structure */
7738 pci_disable_msix(phba->pcidev);
7739 return rc;
7743 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7744 * @phba: pointer to lpfc hba data structure.
7746 * This routine is invoked to release the MSI-X vectors and then disable the
7747 * MSI-X interrupt mode to device with SLI-4 interface spec.
7749 static void
7750 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
7752 int index;
7754 /* Free up MSI-X multi-message vectors */
7755 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7757 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
7758 free_irq(phba->sli4_hba.msix_entries[index].vector,
7759 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7761 /* Disable MSI-X */
7762 pci_disable_msix(phba->pcidev);
7764 return;
7768 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7769 * @phba: pointer to lpfc hba data structure.
7771 * This routine is invoked to enable the MSI interrupt mode to device with
7772 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7773 * to enable the MSI vector. The device driver is responsible for calling
7774 * the request_irq() to register MSI vector with a interrupt the handler,
7775 * which is done in this function.
7777 * Return codes
7778 * 0 - successful
7779 * other values - error
7781 static int
7782 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
7784 int rc, index;
7786 rc = pci_enable_msi(phba->pcidev);
7787 if (!rc)
7788 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7789 "0487 PCI enable MSI mode success.\n");
7790 else {
7791 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7792 "0488 PCI enable MSI mode failed (%d)\n", rc);
7793 return rc;
7796 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7797 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7798 if (rc) {
7799 pci_disable_msi(phba->pcidev);
7800 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7801 "0490 MSI request_irq failed (%d)\n", rc);
7802 return rc;
7805 for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
7806 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7807 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7810 return 0;
7814 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7815 * @phba: pointer to lpfc hba data structure.
7817 * This routine is invoked to disable the MSI interrupt mode to device with
7818 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7819 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7820 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7821 * its vector.
7823 static void
7824 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
7826 free_irq(phba->pcidev->irq, phba);
7827 pci_disable_msi(phba->pcidev);
7828 return;
7832 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7833 * @phba: pointer to lpfc hba data structure.
7835 * This routine is invoked to enable device interrupt and associate driver's
7836 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7837 * interface spec. Depends on the interrupt mode configured to the driver,
7838 * the driver will try to fallback from the configured interrupt mode to an
7839 * interrupt mode which is supported by the platform, kernel, and device in
7840 * the order of:
7841 * MSI-X -> MSI -> IRQ.
7843 * Return codes
7844 * 0 - successful
7845 * other values - error
7847 static uint32_t
7848 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7850 uint32_t intr_mode = LPFC_INTR_ERROR;
7851 int retval, index;
7853 if (cfg_mode == 2) {
7854 /* Preparation before conf_msi mbox cmd */
7855 retval = 0;
7856 if (!retval) {
7857 /* Now, try to enable MSI-X interrupt mode */
7858 retval = lpfc_sli4_enable_msix(phba);
7859 if (!retval) {
7860 /* Indicate initialization to MSI-X mode */
7861 phba->intr_type = MSIX;
7862 intr_mode = 2;
7867 /* Fallback to MSI if MSI-X initialization failed */
7868 if (cfg_mode >= 1 && phba->intr_type == NONE) {
7869 retval = lpfc_sli4_enable_msi(phba);
7870 if (!retval) {
7871 /* Indicate initialization to MSI mode */
7872 phba->intr_type = MSI;
7873 intr_mode = 1;
7877 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7878 if (phba->intr_type == NONE) {
7879 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7880 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7881 if (!retval) {
7882 /* Indicate initialization to INTx mode */
7883 phba->intr_type = INTx;
7884 intr_mode = 0;
7885 for (index = 0; index < phba->cfg_fcp_eq_count;
7886 index++) {
7887 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7888 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7892 return intr_mode;
7896 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7897 * @phba: pointer to lpfc hba data structure.
7899 * This routine is invoked to disable device interrupt and disassociate
7900 * the driver's interrupt handler(s) from interrupt vector(s) to device
7901 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7902 * will release the interrupt vector(s) for the message signaled interrupt.
7904 static void
7905 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
7907 /* Disable the currently initialized interrupt mode */
7908 if (phba->intr_type == MSIX)
7909 lpfc_sli4_disable_msix(phba);
7910 else if (phba->intr_type == MSI)
7911 lpfc_sli4_disable_msi(phba);
7912 else if (phba->intr_type == INTx)
7913 free_irq(phba->pcidev->irq, phba);
7915 /* Reset interrupt management states */
7916 phba->intr_type = NONE;
7917 phba->sli.slistat.sli_intr = 0;
7919 return;
7923 * lpfc_unset_hba - Unset SLI3 hba device initialization
7924 * @phba: pointer to lpfc hba data structure.
7926 * This routine is invoked to unset the HBA device initialization steps to
7927 * a device with SLI-3 interface spec.
7929 static void
7930 lpfc_unset_hba(struct lpfc_hba *phba)
7932 struct lpfc_vport *vport = phba->pport;
7933 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7935 spin_lock_irq(shost->host_lock);
7936 vport->load_flag |= FC_UNLOADING;
7937 spin_unlock_irq(shost->host_lock);
7939 lpfc_stop_hba_timers(phba);
7941 phba->pport->work_port_events = 0;
7943 lpfc_sli_hba_down(phba);
7945 lpfc_sli_brdrestart(phba);
7947 lpfc_sli_disable_intr(phba);
7949 return;
7953 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7954 * @phba: pointer to lpfc hba data structure.
7956 * This routine is invoked to unset the HBA device initialization steps to
7957 * a device with SLI-4 interface spec.
7959 static void
7960 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
7962 struct lpfc_vport *vport = phba->pport;
7963 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7965 spin_lock_irq(shost->host_lock);
7966 vport->load_flag |= FC_UNLOADING;
7967 spin_unlock_irq(shost->host_lock);
7969 phba->pport->work_port_events = 0;
7971 /* Stop the SLI4 device port */
7972 lpfc_stop_port(phba);
7974 lpfc_sli4_disable_intr(phba);
7976 /* Reset SLI4 HBA FCoE function */
7977 lpfc_pci_function_reset(phba);
7979 return;
7983 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
7984 * @phba: Pointer to HBA context object.
7986 * This function is called in the SLI4 code path to wait for completion
7987 * of device's XRIs exchange busy. It will check the XRI exchange busy
7988 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
7989 * that, it will check the XRI exchange busy on outstanding FCP and ELS
7990 * I/Os every 30 seconds, log error message, and wait forever. Only when
7991 * all XRI exchange busy complete, the driver unload shall proceed with
7992 * invoking the function reset ioctl mailbox command to the CNA and the
7993 * the rest of the driver unload resource release.
7995 static void
7996 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
7998 int wait_time = 0;
7999 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8000 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8002 while (!fcp_xri_cmpl || !els_xri_cmpl) {
8003 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
8004 if (!fcp_xri_cmpl)
8005 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8006 "2877 FCP XRI exchange busy "
8007 "wait time: %d seconds.\n",
8008 wait_time/1000);
8009 if (!els_xri_cmpl)
8010 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8011 "2878 ELS XRI exchange busy "
8012 "wait time: %d seconds.\n",
8013 wait_time/1000);
8014 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
8015 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
8016 } else {
8017 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
8018 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
8020 fcp_xri_cmpl =
8021 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8022 els_xri_cmpl =
8023 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8028 * lpfc_sli4_hba_unset - Unset the fcoe hba
8029 * @phba: Pointer to HBA context object.
8031 * This function is called in the SLI4 code path to reset the HBA's FCoE
8032 * function. The caller is not required to hold any lock. This routine
8033 * issues PCI function reset mailbox command to reset the FCoE function.
8034 * At the end of the function, it calls lpfc_hba_down_post function to
8035 * free any pending commands.
8037 static void
8038 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
8040 int wait_cnt = 0;
8041 LPFC_MBOXQ_t *mboxq;
8042 struct pci_dev *pdev = phba->pcidev;
8044 lpfc_stop_hba_timers(phba);
8045 phba->sli4_hba.intr_enable = 0;
8048 * Gracefully wait out the potential current outstanding asynchronous
8049 * mailbox command.
8052 /* First, block any pending async mailbox command from posted */
8053 spin_lock_irq(&phba->hbalock);
8054 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8055 spin_unlock_irq(&phba->hbalock);
8056 /* Now, trying to wait it out if we can */
8057 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8058 msleep(10);
8059 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
8060 break;
8062 /* Forcefully release the outstanding mailbox command if timed out */
8063 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8064 spin_lock_irq(&phba->hbalock);
8065 mboxq = phba->sli.mbox_active;
8066 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8067 __lpfc_mbox_cmpl_put(phba, mboxq);
8068 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8069 phba->sli.mbox_active = NULL;
8070 spin_unlock_irq(&phba->hbalock);
8073 /* Abort all iocbs associated with the hba */
8074 lpfc_sli_hba_iocb_abort(phba);
8076 /* Wait for completion of device XRI exchange busy */
8077 lpfc_sli4_xri_exchange_busy_wait(phba);
8079 /* Disable PCI subsystem interrupt */
8080 lpfc_sli4_disable_intr(phba);
8082 /* Disable SR-IOV if enabled */
8083 if (phba->cfg_sriov_nr_virtfn)
8084 pci_disable_sriov(pdev);
8086 /* Stop kthread signal shall trigger work_done one more time */
8087 kthread_stop(phba->worker_thread);
8089 /* Reset SLI4 HBA FCoE function */
8090 lpfc_pci_function_reset(phba);
8092 /* Stop the SLI4 device port */
8093 phba->pport->work_port_events = 0;
8097 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
8098 * @phba: Pointer to HBA context object.
8099 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8101 * This function is called in the SLI4 code path to read the port's
8102 * sli4 capabilities.
8104 * This function may be be called from any context that can block-wait
8105 * for the completion. The expectation is that this routine is called
8106 * typically from probe_one or from the online routine.
8109 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8111 int rc;
8112 struct lpfc_mqe *mqe;
8113 struct lpfc_pc_sli4_params *sli4_params;
8114 uint32_t mbox_tmo;
8116 rc = 0;
8117 mqe = &mboxq->u.mqe;
8119 /* Read the port's SLI4 Parameters port capabilities */
8120 lpfc_pc_sli4_params(mboxq);
8121 if (!phba->sli4_hba.intr_enable)
8122 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8123 else {
8124 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES);
8125 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8128 if (unlikely(rc))
8129 return 1;
8131 sli4_params = &phba->sli4_hba.pc_sli4_params;
8132 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
8133 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
8134 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
8135 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
8136 &mqe->un.sli4_params);
8137 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
8138 &mqe->un.sli4_params);
8139 sli4_params->proto_types = mqe->un.sli4_params.word3;
8140 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
8141 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
8142 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
8143 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
8144 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
8145 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
8146 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
8147 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
8148 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
8149 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
8150 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
8151 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
8152 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
8153 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
8154 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
8155 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
8156 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
8157 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
8158 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
8159 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
8161 /* Make sure that sge_supp_len can be handled by the driver */
8162 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8163 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8165 return rc;
8169 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
8170 * @phba: Pointer to HBA context object.
8171 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8173 * This function is called in the SLI4 code path to read the port's
8174 * sli4 capabilities.
8176 * This function may be be called from any context that can block-wait
8177 * for the completion. The expectation is that this routine is called
8178 * typically from probe_one or from the online routine.
8181 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8183 int rc;
8184 struct lpfc_mqe *mqe = &mboxq->u.mqe;
8185 struct lpfc_pc_sli4_params *sli4_params;
8186 int length;
8187 struct lpfc_sli4_parameters *mbx_sli4_parameters;
8190 * By default, the driver assumes the SLI4 port requires RPI
8191 * header postings. The SLI4_PARAM response will correct this
8192 * assumption.
8194 phba->sli4_hba.rpi_hdrs_in_use = 1;
8196 /* Read the port's SLI4 Config Parameters */
8197 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
8198 sizeof(struct lpfc_sli4_cfg_mhdr));
8199 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8200 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
8201 length, LPFC_SLI4_MBX_EMBED);
8202 if (!phba->sli4_hba.intr_enable)
8203 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8204 else
8205 rc = lpfc_sli_issue_mbox_wait(phba, mboxq,
8206 lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG));
8207 if (unlikely(rc))
8208 return rc;
8209 sli4_params = &phba->sli4_hba.pc_sli4_params;
8210 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
8211 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
8212 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
8213 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
8214 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
8215 mbx_sli4_parameters);
8216 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
8217 mbx_sli4_parameters);
8218 if (bf_get(cfg_phwq, mbx_sli4_parameters))
8219 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
8220 else
8221 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
8222 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
8223 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
8224 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
8225 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
8226 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
8227 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
8228 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
8229 mbx_sli4_parameters);
8230 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
8231 mbx_sli4_parameters);
8232 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
8233 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
8235 /* Make sure that sge_supp_len can be handled by the driver */
8236 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8237 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8239 return 0;
8243 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
8244 * @pdev: pointer to PCI device
8245 * @pid: pointer to PCI device identifier
8247 * This routine is to be called to attach a device with SLI-3 interface spec
8248 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8249 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8250 * information of the device and driver to see if the driver state that it can
8251 * support this kind of device. If the match is successful, the driver core
8252 * invokes this routine. If this routine determines it can claim the HBA, it
8253 * does all the initialization that it needs to do to handle the HBA properly.
8255 * Return code
8256 * 0 - driver can claim the device
8257 * negative value - driver can not claim the device
8259 static int __devinit
8260 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
8262 struct lpfc_hba *phba;
8263 struct lpfc_vport *vport = NULL;
8264 struct Scsi_Host *shost = NULL;
8265 int error;
8266 uint32_t cfg_mode, intr_mode;
8268 /* Allocate memory for HBA structure */
8269 phba = lpfc_hba_alloc(pdev);
8270 if (!phba)
8271 return -ENOMEM;
8273 /* Perform generic PCI device enabling operation */
8274 error = lpfc_enable_pci_dev(phba);
8275 if (error) {
8276 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8277 "1401 Failed to enable pci device.\n");
8278 goto out_free_phba;
8281 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
8282 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
8283 if (error)
8284 goto out_disable_pci_dev;
8286 /* Set up SLI-3 specific device PCI memory space */
8287 error = lpfc_sli_pci_mem_setup(phba);
8288 if (error) {
8289 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8290 "1402 Failed to set up pci memory space.\n");
8291 goto out_disable_pci_dev;
8294 /* Set up phase-1 common device driver resources */
8295 error = lpfc_setup_driver_resource_phase1(phba);
8296 if (error) {
8297 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8298 "1403 Failed to set up driver resource.\n");
8299 goto out_unset_pci_mem_s3;
8302 /* Set up SLI-3 specific device driver resources */
8303 error = lpfc_sli_driver_resource_setup(phba);
8304 if (error) {
8305 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8306 "1404 Failed to set up driver resource.\n");
8307 goto out_unset_pci_mem_s3;
8310 /* Initialize and populate the iocb list per host */
8311 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
8312 if (error) {
8313 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8314 "1405 Failed to initialize iocb list.\n");
8315 goto out_unset_driver_resource_s3;
8318 /* Set up common device driver resources */
8319 error = lpfc_setup_driver_resource_phase2(phba);
8320 if (error) {
8321 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8322 "1406 Failed to set up driver resource.\n");
8323 goto out_free_iocb_list;
8326 /* Create SCSI host to the physical port */
8327 error = lpfc_create_shost(phba);
8328 if (error) {
8329 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8330 "1407 Failed to create scsi host.\n");
8331 goto out_unset_driver_resource;
8334 /* Configure sysfs attributes */
8335 vport = phba->pport;
8336 error = lpfc_alloc_sysfs_attr(vport);
8337 if (error) {
8338 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8339 "1476 Failed to allocate sysfs attr\n");
8340 goto out_destroy_shost;
8343 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8344 /* Now, trying to enable interrupt and bring up the device */
8345 cfg_mode = phba->cfg_use_msi;
8346 while (true) {
8347 /* Put device to a known state before enabling interrupt */
8348 lpfc_stop_port(phba);
8349 /* Configure and enable interrupt */
8350 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
8351 if (intr_mode == LPFC_INTR_ERROR) {
8352 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8353 "0431 Failed to enable interrupt.\n");
8354 error = -ENODEV;
8355 goto out_free_sysfs_attr;
8357 /* SLI-3 HBA setup */
8358 if (lpfc_sli_hba_setup(phba)) {
8359 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8360 "1477 Failed to set up hba\n");
8361 error = -ENODEV;
8362 goto out_remove_device;
8365 /* Wait 50ms for the interrupts of previous mailbox commands */
8366 msleep(50);
8367 /* Check active interrupts on message signaled interrupts */
8368 if (intr_mode == 0 ||
8369 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
8370 /* Log the current active interrupt mode */
8371 phba->intr_mode = intr_mode;
8372 lpfc_log_intr_mode(phba, intr_mode);
8373 break;
8374 } else {
8375 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8376 "0447 Configure interrupt mode (%d) "
8377 "failed active interrupt test.\n",
8378 intr_mode);
8379 /* Disable the current interrupt mode */
8380 lpfc_sli_disable_intr(phba);
8381 /* Try next level of interrupt mode */
8382 cfg_mode = --intr_mode;
8386 /* Perform post initialization setup */
8387 lpfc_post_init_setup(phba);
8389 /* Check if there are static vports to be created. */
8390 lpfc_create_static_vport(phba);
8392 return 0;
8394 out_remove_device:
8395 lpfc_unset_hba(phba);
8396 out_free_sysfs_attr:
8397 lpfc_free_sysfs_attr(vport);
8398 out_destroy_shost:
8399 lpfc_destroy_shost(phba);
8400 out_unset_driver_resource:
8401 lpfc_unset_driver_resource_phase2(phba);
8402 out_free_iocb_list:
8403 lpfc_free_iocb_list(phba);
8404 out_unset_driver_resource_s3:
8405 lpfc_sli_driver_resource_unset(phba);
8406 out_unset_pci_mem_s3:
8407 lpfc_sli_pci_mem_unset(phba);
8408 out_disable_pci_dev:
8409 lpfc_disable_pci_dev(phba);
8410 if (shost)
8411 scsi_host_put(shost);
8412 out_free_phba:
8413 lpfc_hba_free(phba);
8414 return error;
8418 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8419 * @pdev: pointer to PCI device
8421 * This routine is to be called to disattach a device with SLI-3 interface
8422 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8423 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8424 * device to be removed from the PCI subsystem properly.
8426 static void __devexit
8427 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
8429 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8430 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8431 struct lpfc_vport **vports;
8432 struct lpfc_hba *phba = vport->phba;
8433 int i;
8434 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
8436 spin_lock_irq(&phba->hbalock);
8437 vport->load_flag |= FC_UNLOADING;
8438 spin_unlock_irq(&phba->hbalock);
8440 lpfc_free_sysfs_attr(vport);
8442 /* Release all the vports against this physical port */
8443 vports = lpfc_create_vport_work_array(phba);
8444 if (vports != NULL)
8445 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8446 fc_vport_terminate(vports[i]->fc_vport);
8447 lpfc_destroy_vport_work_array(phba, vports);
8449 /* Remove FC host and then SCSI host with the physical port */
8450 fc_remove_host(shost);
8451 scsi_remove_host(shost);
8452 lpfc_cleanup(vport);
8455 * Bring down the SLI Layer. This step disable all interrupts,
8456 * clears the rings, discards all mailbox commands, and resets
8457 * the HBA.
8460 /* HBA interrupt will be disabled after this call */
8461 lpfc_sli_hba_down(phba);
8462 /* Stop kthread signal shall trigger work_done one more time */
8463 kthread_stop(phba->worker_thread);
8464 /* Final cleanup of txcmplq and reset the HBA */
8465 lpfc_sli_brdrestart(phba);
8467 lpfc_stop_hba_timers(phba);
8468 spin_lock_irq(&phba->hbalock);
8469 list_del_init(&vport->listentry);
8470 spin_unlock_irq(&phba->hbalock);
8472 lpfc_debugfs_terminate(vport);
8474 /* Disable SR-IOV if enabled */
8475 if (phba->cfg_sriov_nr_virtfn)
8476 pci_disable_sriov(pdev);
8478 /* Disable interrupt */
8479 lpfc_sli_disable_intr(phba);
8481 pci_set_drvdata(pdev, NULL);
8482 scsi_host_put(shost);
8485 * Call scsi_free before mem_free since scsi bufs are released to their
8486 * corresponding pools here.
8488 lpfc_scsi_free(phba);
8489 lpfc_mem_free_all(phba);
8491 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
8492 phba->hbqslimp.virt, phba->hbqslimp.phys);
8494 /* Free resources associated with SLI2 interface */
8495 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
8496 phba->slim2p.virt, phba->slim2p.phys);
8498 /* unmap adapter SLIM and Control Registers */
8499 iounmap(phba->ctrl_regs_memmap_p);
8500 iounmap(phba->slim_memmap_p);
8502 lpfc_hba_free(phba);
8504 pci_release_selected_regions(pdev, bars);
8505 pci_disable_device(pdev);
8509 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
8510 * @pdev: pointer to PCI device
8511 * @msg: power management message
8513 * This routine is to be called from the kernel's PCI subsystem to support
8514 * system Power Management (PM) to device with SLI-3 interface spec. When
8515 * PM invokes this method, it quiesces the device by stopping the driver's
8516 * worker thread for the device, turning off device's interrupt and DMA,
8517 * and bring the device offline. Note that as the driver implements the
8518 * minimum PM requirements to a power-aware driver's PM support for the
8519 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8520 * to the suspend() method call will be treated as SUSPEND and the driver will
8521 * fully reinitialize its device during resume() method call, the driver will
8522 * set device to PCI_D3hot state in PCI config space instead of setting it
8523 * according to the @msg provided by the PM.
8525 * Return code
8526 * 0 - driver suspended the device
8527 * Error otherwise
8529 static int
8530 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
8532 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8533 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8535 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8536 "0473 PCI device Power Management suspend.\n");
8538 /* Bring down the device */
8539 lpfc_offline_prep(phba);
8540 lpfc_offline(phba);
8541 kthread_stop(phba->worker_thread);
8543 /* Disable interrupt from device */
8544 lpfc_sli_disable_intr(phba);
8546 /* Save device state to PCI config space */
8547 pci_save_state(pdev);
8548 pci_set_power_state(pdev, PCI_D3hot);
8550 return 0;
8554 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
8555 * @pdev: pointer to PCI device
8557 * This routine is to be called from the kernel's PCI subsystem to support
8558 * system Power Management (PM) to device with SLI-3 interface spec. When PM
8559 * invokes this method, it restores the device's PCI config space state and
8560 * fully reinitializes the device and brings it online. Note that as the
8561 * driver implements the minimum PM requirements to a power-aware driver's
8562 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
8563 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
8564 * driver will fully reinitialize its device during resume() method call,
8565 * the device will be set to PCI_D0 directly in PCI config space before
8566 * restoring the state.
8568 * Return code
8569 * 0 - driver suspended the device
8570 * Error otherwise
8572 static int
8573 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
8575 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8576 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8577 uint32_t intr_mode;
8578 int error;
8580 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8581 "0452 PCI device Power Management resume.\n");
8583 /* Restore device state from PCI config space */
8584 pci_set_power_state(pdev, PCI_D0);
8585 pci_restore_state(pdev);
8588 * As the new kernel behavior of pci_restore_state() API call clears
8589 * device saved_state flag, need to save the restored state again.
8591 pci_save_state(pdev);
8593 if (pdev->is_busmaster)
8594 pci_set_master(pdev);
8596 /* Startup the kernel thread for this host adapter. */
8597 phba->worker_thread = kthread_run(lpfc_do_work, phba,
8598 "lpfc_worker_%d", phba->brd_no);
8599 if (IS_ERR(phba->worker_thread)) {
8600 error = PTR_ERR(phba->worker_thread);
8601 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8602 "0434 PM resume failed to start worker "
8603 "thread: error=x%x.\n", error);
8604 return error;
8607 /* Configure and enable interrupt */
8608 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8609 if (intr_mode == LPFC_INTR_ERROR) {
8610 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8611 "0430 PM resume Failed to enable interrupt\n");
8612 return -EIO;
8613 } else
8614 phba->intr_mode = intr_mode;
8616 /* Restart HBA and bring it online */
8617 lpfc_sli_brdrestart(phba);
8618 lpfc_online(phba);
8620 /* Log the current active interrupt mode */
8621 lpfc_log_intr_mode(phba, phba->intr_mode);
8623 return 0;
8627 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
8628 * @phba: pointer to lpfc hba data structure.
8630 * This routine is called to prepare the SLI3 device for PCI slot recover. It
8631 * aborts all the outstanding SCSI I/Os to the pci device.
8633 static void
8634 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
8636 struct lpfc_sli *psli = &phba->sli;
8637 struct lpfc_sli_ring *pring;
8639 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8640 "2723 PCI channel I/O abort preparing for recovery\n");
8643 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8644 * and let the SCSI mid-layer to retry them to recover.
8646 pring = &psli->ring[psli->fcp_ring];
8647 lpfc_sli_abort_iocb_ring(phba, pring);
8651 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
8652 * @phba: pointer to lpfc hba data structure.
8654 * This routine is called to prepare the SLI3 device for PCI slot reset. It
8655 * disables the device interrupt and pci device, and aborts the internal FCP
8656 * pending I/Os.
8658 static void
8659 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
8661 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8662 "2710 PCI channel disable preparing for reset\n");
8664 /* Block any management I/Os to the device */
8665 lpfc_block_mgmt_io(phba);
8667 /* Block all SCSI devices' I/Os on the host */
8668 lpfc_scsi_dev_block(phba);
8670 /* stop all timers */
8671 lpfc_stop_hba_timers(phba);
8673 /* Disable interrupt and pci device */
8674 lpfc_sli_disable_intr(phba);
8675 pci_disable_device(phba->pcidev);
8677 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8678 lpfc_sli_flush_fcp_rings(phba);
8682 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
8683 * @phba: pointer to lpfc hba data structure.
8685 * This routine is called to prepare the SLI3 device for PCI slot permanently
8686 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8687 * pending I/Os.
8689 static void
8690 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
8692 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8693 "2711 PCI channel permanent disable for failure\n");
8694 /* Block all SCSI devices' I/Os on the host */
8695 lpfc_scsi_dev_block(phba);
8697 /* stop all timers */
8698 lpfc_stop_hba_timers(phba);
8700 /* Clean up all driver's outstanding SCSI I/Os */
8701 lpfc_sli_flush_fcp_rings(phba);
8705 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
8706 * @pdev: pointer to PCI device.
8707 * @state: the current PCI connection state.
8709 * This routine is called from the PCI subsystem for I/O error handling to
8710 * device with SLI-3 interface spec. This function is called by the PCI
8711 * subsystem after a PCI bus error affecting this device has been detected.
8712 * When this function is invoked, it will need to stop all the I/Os and
8713 * interrupt(s) to the device. Once that is done, it will return
8714 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
8715 * as desired.
8717 * Return codes
8718 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
8719 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8720 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8722 static pci_ers_result_t
8723 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
8725 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8726 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8728 switch (state) {
8729 case pci_channel_io_normal:
8730 /* Non-fatal error, prepare for recovery */
8731 lpfc_sli_prep_dev_for_recover(phba);
8732 return PCI_ERS_RESULT_CAN_RECOVER;
8733 case pci_channel_io_frozen:
8734 /* Fatal error, prepare for slot reset */
8735 lpfc_sli_prep_dev_for_reset(phba);
8736 return PCI_ERS_RESULT_NEED_RESET;
8737 case pci_channel_io_perm_failure:
8738 /* Permanent failure, prepare for device down */
8739 lpfc_sli_prep_dev_for_perm_failure(phba);
8740 return PCI_ERS_RESULT_DISCONNECT;
8741 default:
8742 /* Unknown state, prepare and request slot reset */
8743 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8744 "0472 Unknown PCI error state: x%x\n", state);
8745 lpfc_sli_prep_dev_for_reset(phba);
8746 return PCI_ERS_RESULT_NEED_RESET;
8751 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
8752 * @pdev: pointer to PCI device.
8754 * This routine is called from the PCI subsystem for error handling to
8755 * device with SLI-3 interface spec. This is called after PCI bus has been
8756 * reset to restart the PCI card from scratch, as if from a cold-boot.
8757 * During the PCI subsystem error recovery, after driver returns
8758 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8759 * recovery and then call this routine before calling the .resume method
8760 * to recover the device. This function will initialize the HBA device,
8761 * enable the interrupt, but it will just put the HBA to offline state
8762 * without passing any I/O traffic.
8764 * Return codes
8765 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8766 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8768 static pci_ers_result_t
8769 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
8771 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8772 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8773 struct lpfc_sli *psli = &phba->sli;
8774 uint32_t intr_mode;
8776 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
8777 if (pci_enable_device_mem(pdev)) {
8778 printk(KERN_ERR "lpfc: Cannot re-enable "
8779 "PCI device after reset.\n");
8780 return PCI_ERS_RESULT_DISCONNECT;
8783 pci_restore_state(pdev);
8786 * As the new kernel behavior of pci_restore_state() API call clears
8787 * device saved_state flag, need to save the restored state again.
8789 pci_save_state(pdev);
8791 if (pdev->is_busmaster)
8792 pci_set_master(pdev);
8794 spin_lock_irq(&phba->hbalock);
8795 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8796 spin_unlock_irq(&phba->hbalock);
8798 /* Configure and enable interrupt */
8799 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8800 if (intr_mode == LPFC_INTR_ERROR) {
8801 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8802 "0427 Cannot re-enable interrupt after "
8803 "slot reset.\n");
8804 return PCI_ERS_RESULT_DISCONNECT;
8805 } else
8806 phba->intr_mode = intr_mode;
8808 /* Take device offline, it will perform cleanup */
8809 lpfc_offline_prep(phba);
8810 lpfc_offline(phba);
8811 lpfc_sli_brdrestart(phba);
8813 /* Log the current active interrupt mode */
8814 lpfc_log_intr_mode(phba, phba->intr_mode);
8816 return PCI_ERS_RESULT_RECOVERED;
8820 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
8821 * @pdev: pointer to PCI device
8823 * This routine is called from the PCI subsystem for error handling to device
8824 * with SLI-3 interface spec. It is called when kernel error recovery tells
8825 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8826 * error recovery. After this call, traffic can start to flow from this device
8827 * again.
8829 static void
8830 lpfc_io_resume_s3(struct pci_dev *pdev)
8832 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8833 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8835 /* Bring device online, it will be no-op for non-fatal error resume */
8836 lpfc_online(phba);
8838 /* Clean up Advanced Error Reporting (AER) if needed */
8839 if (phba->hba_flag & HBA_AER_ENABLED)
8840 pci_cleanup_aer_uncorrect_error_status(pdev);
8844 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
8845 * @phba: pointer to lpfc hba data structure.
8847 * returns the number of ELS/CT IOCBs to reserve
8850 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
8852 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
8854 if (phba->sli_rev == LPFC_SLI_REV4) {
8855 if (max_xri <= 100)
8856 return 10;
8857 else if (max_xri <= 256)
8858 return 25;
8859 else if (max_xri <= 512)
8860 return 50;
8861 else if (max_xri <= 1024)
8862 return 100;
8863 else
8864 return 150;
8865 } else
8866 return 0;
8870 * lpfc_write_firmware - attempt to write a firmware image to the port
8871 * @phba: pointer to lpfc hba data structure.
8872 * @fw: pointer to firmware image returned from request_firmware.
8874 * returns the number of bytes written if write is successful.
8875 * returns a negative error value if there were errors.
8876 * returns 0 if firmware matches currently active firmware on port.
8879 lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw)
8881 char fwrev[32];
8882 struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data;
8883 struct list_head dma_buffer_list;
8884 int i, rc = 0;
8885 struct lpfc_dmabuf *dmabuf, *next;
8886 uint32_t offset = 0, temp_offset = 0;
8888 INIT_LIST_HEAD(&dma_buffer_list);
8889 if ((image->magic_number != LPFC_GROUP_OJECT_MAGIC_NUM) ||
8890 (bf_get(lpfc_grp_hdr_file_type, image) != LPFC_FILE_TYPE_GROUP) ||
8891 (bf_get(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
8892 (image->size != fw->size)) {
8893 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8894 "3022 Invalid FW image found. "
8895 "Magic:%d Type:%x ID:%x\n",
8896 image->magic_number,
8897 bf_get(lpfc_grp_hdr_file_type, image),
8898 bf_get(lpfc_grp_hdr_id, image));
8899 return -EINVAL;
8901 lpfc_decode_firmware_rev(phba, fwrev, 1);
8902 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
8903 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8904 "3023 Updating Firmware. Current Version:%s "
8905 "New Version:%s\n",
8906 fwrev, image->revision);
8907 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
8908 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
8909 GFP_KERNEL);
8910 if (!dmabuf) {
8911 rc = -ENOMEM;
8912 goto out;
8914 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
8915 SLI4_PAGE_SIZE,
8916 &dmabuf->phys,
8917 GFP_KERNEL);
8918 if (!dmabuf->virt) {
8919 kfree(dmabuf);
8920 rc = -ENOMEM;
8921 goto out;
8923 list_add_tail(&dmabuf->list, &dma_buffer_list);
8925 while (offset < fw->size) {
8926 temp_offset = offset;
8927 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
8928 if (offset + SLI4_PAGE_SIZE > fw->size) {
8929 temp_offset += fw->size - offset;
8930 memcpy(dmabuf->virt,
8931 fw->data + temp_offset,
8932 fw->size - offset);
8933 break;
8935 memcpy(dmabuf->virt, fw->data + temp_offset,
8936 SLI4_PAGE_SIZE);
8937 temp_offset += SLI4_PAGE_SIZE;
8939 rc = lpfc_wr_object(phba, &dma_buffer_list,
8940 (fw->size - offset), &offset);
8941 if (rc) {
8942 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8943 "3024 Firmware update failed. "
8944 "%d\n", rc);
8945 goto out;
8948 rc = offset;
8950 out:
8951 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
8952 list_del(&dmabuf->list);
8953 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
8954 dmabuf->virt, dmabuf->phys);
8955 kfree(dmabuf);
8957 return rc;
8961 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
8962 * @pdev: pointer to PCI device
8963 * @pid: pointer to PCI device identifier
8965 * This routine is called from the kernel's PCI subsystem to device with
8966 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8967 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8968 * information of the device and driver to see if the driver state that it
8969 * can support this kind of device. If the match is successful, the driver
8970 * core invokes this routine. If this routine determines it can claim the HBA,
8971 * it does all the initialization that it needs to do to handle the HBA
8972 * properly.
8974 * Return code
8975 * 0 - driver can claim the device
8976 * negative value - driver can not claim the device
8978 static int __devinit
8979 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
8981 struct lpfc_hba *phba;
8982 struct lpfc_vport *vport = NULL;
8983 struct Scsi_Host *shost = NULL;
8984 int error;
8985 uint32_t cfg_mode, intr_mode;
8986 int mcnt;
8987 int adjusted_fcp_eq_count;
8988 int fcp_qidx;
8989 const struct firmware *fw;
8990 uint8_t file_name[16];
8992 /* Allocate memory for HBA structure */
8993 phba = lpfc_hba_alloc(pdev);
8994 if (!phba)
8995 return -ENOMEM;
8997 /* Perform generic PCI device enabling operation */
8998 error = lpfc_enable_pci_dev(phba);
8999 if (error) {
9000 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9001 "1409 Failed to enable pci device.\n");
9002 goto out_free_phba;
9005 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
9006 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
9007 if (error)
9008 goto out_disable_pci_dev;
9010 /* Set up SLI-4 specific device PCI memory space */
9011 error = lpfc_sli4_pci_mem_setup(phba);
9012 if (error) {
9013 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9014 "1410 Failed to set up pci memory space.\n");
9015 goto out_disable_pci_dev;
9018 /* Set up phase-1 common device driver resources */
9019 error = lpfc_setup_driver_resource_phase1(phba);
9020 if (error) {
9021 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9022 "1411 Failed to set up driver resource.\n");
9023 goto out_unset_pci_mem_s4;
9026 /* Set up SLI-4 Specific device driver resources */
9027 error = lpfc_sli4_driver_resource_setup(phba);
9028 if (error) {
9029 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9030 "1412 Failed to set up driver resource.\n");
9031 goto out_unset_pci_mem_s4;
9034 /* Initialize and populate the iocb list per host */
9036 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9037 "2821 initialize iocb list %d.\n",
9038 phba->cfg_iocb_cnt*1024);
9039 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
9041 if (error) {
9042 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9043 "1413 Failed to initialize iocb list.\n");
9044 goto out_unset_driver_resource_s4;
9047 INIT_LIST_HEAD(&phba->active_rrq_list);
9048 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
9050 /* Set up common device driver resources */
9051 error = lpfc_setup_driver_resource_phase2(phba);
9052 if (error) {
9053 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9054 "1414 Failed to set up driver resource.\n");
9055 goto out_free_iocb_list;
9058 /* Create SCSI host to the physical port */
9059 error = lpfc_create_shost(phba);
9060 if (error) {
9061 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9062 "1415 Failed to create scsi host.\n");
9063 goto out_unset_driver_resource;
9066 /* Configure sysfs attributes */
9067 vport = phba->pport;
9068 error = lpfc_alloc_sysfs_attr(vport);
9069 if (error) {
9070 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9071 "1416 Failed to allocate sysfs attr\n");
9072 goto out_destroy_shost;
9075 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9076 /* Now, trying to enable interrupt and bring up the device */
9077 cfg_mode = phba->cfg_use_msi;
9078 while (true) {
9079 /* Put device to a known state before enabling interrupt */
9080 lpfc_stop_port(phba);
9081 /* Configure and enable interrupt */
9082 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
9083 if (intr_mode == LPFC_INTR_ERROR) {
9084 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9085 "0426 Failed to enable interrupt.\n");
9086 error = -ENODEV;
9087 goto out_free_sysfs_attr;
9089 /* Default to single EQ for non-MSI-X */
9090 if (phba->intr_type != MSIX)
9091 adjusted_fcp_eq_count = 0;
9092 else if (phba->sli4_hba.msix_vec_nr <
9093 phba->cfg_fcp_eq_count + 1)
9094 adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
9095 else
9096 adjusted_fcp_eq_count = phba->cfg_fcp_eq_count;
9097 /* Free unused EQs */
9098 for (fcp_qidx = adjusted_fcp_eq_count;
9099 fcp_qidx < phba->cfg_fcp_eq_count;
9100 fcp_qidx++) {
9101 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
9102 /* do not delete the first fcp_cq */
9103 if (fcp_qidx)
9104 lpfc_sli4_queue_free(
9105 phba->sli4_hba.fcp_cq[fcp_qidx]);
9107 phba->cfg_fcp_eq_count = adjusted_fcp_eq_count;
9108 /* Set up SLI-4 HBA */
9109 if (lpfc_sli4_hba_setup(phba)) {
9110 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9111 "1421 Failed to set up hba\n");
9112 error = -ENODEV;
9113 goto out_disable_intr;
9116 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
9117 if (intr_mode != 0)
9118 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
9119 LPFC_ACT_INTR_CNT);
9121 /* Check active interrupts received only for MSI/MSI-X */
9122 if (intr_mode == 0 ||
9123 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
9124 /* Log the current active interrupt mode */
9125 phba->intr_mode = intr_mode;
9126 lpfc_log_intr_mode(phba, intr_mode);
9127 break;
9129 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9130 "0451 Configure interrupt mode (%d) "
9131 "failed active interrupt test.\n",
9132 intr_mode);
9133 /* Unset the previous SLI-4 HBA setup. */
9135 * TODO: Is this operation compatible with IF TYPE 2
9136 * devices? All port state is deleted and cleared.
9138 lpfc_sli4_unset_hba(phba);
9139 /* Try next level of interrupt mode */
9140 cfg_mode = --intr_mode;
9143 /* Perform post initialization setup */
9144 lpfc_post_init_setup(phba);
9146 /* check for firmware upgrade or downgrade */
9147 snprintf(file_name, 16, "%s.grp", phba->ModelName);
9148 error = request_firmware(&fw, file_name, &phba->pcidev->dev);
9149 if (!error) {
9150 lpfc_write_firmware(phba, fw);
9151 release_firmware(fw);
9154 /* Check if there are static vports to be created. */
9155 lpfc_create_static_vport(phba);
9156 return 0;
9158 out_disable_intr:
9159 lpfc_sli4_disable_intr(phba);
9160 out_free_sysfs_attr:
9161 lpfc_free_sysfs_attr(vport);
9162 out_destroy_shost:
9163 lpfc_destroy_shost(phba);
9164 out_unset_driver_resource:
9165 lpfc_unset_driver_resource_phase2(phba);
9166 out_free_iocb_list:
9167 lpfc_free_iocb_list(phba);
9168 out_unset_driver_resource_s4:
9169 lpfc_sli4_driver_resource_unset(phba);
9170 out_unset_pci_mem_s4:
9171 lpfc_sli4_pci_mem_unset(phba);
9172 out_disable_pci_dev:
9173 lpfc_disable_pci_dev(phba);
9174 if (shost)
9175 scsi_host_put(shost);
9176 out_free_phba:
9177 lpfc_hba_free(phba);
9178 return error;
9182 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
9183 * @pdev: pointer to PCI device
9185 * This routine is called from the kernel's PCI subsystem to device with
9186 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9187 * removed from PCI bus, it performs all the necessary cleanup for the HBA
9188 * device to be removed from the PCI subsystem properly.
9190 static void __devexit
9191 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
9193 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9194 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9195 struct lpfc_vport **vports;
9196 struct lpfc_hba *phba = vport->phba;
9197 int i;
9199 /* Mark the device unloading flag */
9200 spin_lock_irq(&phba->hbalock);
9201 vport->load_flag |= FC_UNLOADING;
9202 spin_unlock_irq(&phba->hbalock);
9204 /* Free the HBA sysfs attributes */
9205 lpfc_free_sysfs_attr(vport);
9207 /* Release all the vports against this physical port */
9208 vports = lpfc_create_vport_work_array(phba);
9209 if (vports != NULL)
9210 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
9211 fc_vport_terminate(vports[i]->fc_vport);
9212 lpfc_destroy_vport_work_array(phba, vports);
9214 /* Remove FC host and then SCSI host with the physical port */
9215 fc_remove_host(shost);
9216 scsi_remove_host(shost);
9218 /* Perform cleanup on the physical port */
9219 lpfc_cleanup(vport);
9222 * Bring down the SLI Layer. This step disables all interrupts,
9223 * clears the rings, discards all mailbox commands, and resets
9224 * the HBA FCoE function.
9226 lpfc_debugfs_terminate(vport);
9227 lpfc_sli4_hba_unset(phba);
9229 spin_lock_irq(&phba->hbalock);
9230 list_del_init(&vport->listentry);
9231 spin_unlock_irq(&phba->hbalock);
9233 /* Perform scsi free before driver resource_unset since scsi
9234 * buffers are released to their corresponding pools here.
9236 lpfc_scsi_free(phba);
9237 lpfc_sli4_driver_resource_unset(phba);
9239 /* Unmap adapter Control and Doorbell registers */
9240 lpfc_sli4_pci_mem_unset(phba);
9242 /* Release PCI resources and disable device's PCI function */
9243 scsi_host_put(shost);
9244 lpfc_disable_pci_dev(phba);
9246 /* Finally, free the driver's device data structure */
9247 lpfc_hba_free(phba);
9249 return;
9253 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
9254 * @pdev: pointer to PCI device
9255 * @msg: power management message
9257 * This routine is called from the kernel's PCI subsystem to support system
9258 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
9259 * this method, it quiesces the device by stopping the driver's worker
9260 * thread for the device, turning off device's interrupt and DMA, and bring
9261 * the device offline. Note that as the driver implements the minimum PM
9262 * requirements to a power-aware driver's PM support for suspend/resume -- all
9263 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
9264 * method call will be treated as SUSPEND and the driver will fully
9265 * reinitialize its device during resume() method call, the driver will set
9266 * device to PCI_D3hot state in PCI config space instead of setting it
9267 * according to the @msg provided by the PM.
9269 * Return code
9270 * 0 - driver suspended the device
9271 * Error otherwise
9273 static int
9274 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
9276 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9277 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9279 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9280 "2843 PCI device Power Management suspend.\n");
9282 /* Bring down the device */
9283 lpfc_offline_prep(phba);
9284 lpfc_offline(phba);
9285 kthread_stop(phba->worker_thread);
9287 /* Disable interrupt from device */
9288 lpfc_sli4_disable_intr(phba);
9290 /* Save device state to PCI config space */
9291 pci_save_state(pdev);
9292 pci_set_power_state(pdev, PCI_D3hot);
9294 return 0;
9298 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
9299 * @pdev: pointer to PCI device
9301 * This routine is called from the kernel's PCI subsystem to support system
9302 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
9303 * this method, it restores the device's PCI config space state and fully
9304 * reinitializes the device and brings it online. Note that as the driver
9305 * implements the minimum PM requirements to a power-aware driver's PM for
9306 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9307 * to the suspend() method call will be treated as SUSPEND and the driver
9308 * will fully reinitialize its device during resume() method call, the device
9309 * will be set to PCI_D0 directly in PCI config space before restoring the
9310 * state.
9312 * Return code
9313 * 0 - driver suspended the device
9314 * Error otherwise
9316 static int
9317 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
9319 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9320 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9321 uint32_t intr_mode;
9322 int error;
9324 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9325 "0292 PCI device Power Management resume.\n");
9327 /* Restore device state from PCI config space */
9328 pci_set_power_state(pdev, PCI_D0);
9329 pci_restore_state(pdev);
9332 * As the new kernel behavior of pci_restore_state() API call clears
9333 * device saved_state flag, need to save the restored state again.
9335 pci_save_state(pdev);
9337 if (pdev->is_busmaster)
9338 pci_set_master(pdev);
9340 /* Startup the kernel thread for this host adapter. */
9341 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9342 "lpfc_worker_%d", phba->brd_no);
9343 if (IS_ERR(phba->worker_thread)) {
9344 error = PTR_ERR(phba->worker_thread);
9345 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9346 "0293 PM resume failed to start worker "
9347 "thread: error=x%x.\n", error);
9348 return error;
9351 /* Configure and enable interrupt */
9352 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9353 if (intr_mode == LPFC_INTR_ERROR) {
9354 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9355 "0294 PM resume Failed to enable interrupt\n");
9356 return -EIO;
9357 } else
9358 phba->intr_mode = intr_mode;
9360 /* Restart HBA and bring it online */
9361 lpfc_sli_brdrestart(phba);
9362 lpfc_online(phba);
9364 /* Log the current active interrupt mode */
9365 lpfc_log_intr_mode(phba, phba->intr_mode);
9367 return 0;
9371 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
9372 * @phba: pointer to lpfc hba data structure.
9374 * This routine is called to prepare the SLI4 device for PCI slot recover. It
9375 * aborts all the outstanding SCSI I/Os to the pci device.
9377 static void
9378 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
9380 struct lpfc_sli *psli = &phba->sli;
9381 struct lpfc_sli_ring *pring;
9383 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9384 "2828 PCI channel I/O abort preparing for recovery\n");
9386 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9387 * and let the SCSI mid-layer to retry them to recover.
9389 pring = &psli->ring[psli->fcp_ring];
9390 lpfc_sli_abort_iocb_ring(phba, pring);
9394 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
9395 * @phba: pointer to lpfc hba data structure.
9397 * This routine is called to prepare the SLI4 device for PCI slot reset. It
9398 * disables the device interrupt and pci device, and aborts the internal FCP
9399 * pending I/Os.
9401 static void
9402 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
9404 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9405 "2826 PCI channel disable preparing for reset\n");
9407 /* Block any management I/Os to the device */
9408 lpfc_block_mgmt_io(phba);
9410 /* Block all SCSI devices' I/Os on the host */
9411 lpfc_scsi_dev_block(phba);
9413 /* stop all timers */
9414 lpfc_stop_hba_timers(phba);
9416 /* Disable interrupt and pci device */
9417 lpfc_sli4_disable_intr(phba);
9418 pci_disable_device(phba->pcidev);
9420 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9421 lpfc_sli_flush_fcp_rings(phba);
9425 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
9426 * @phba: pointer to lpfc hba data structure.
9428 * This routine is called to prepare the SLI4 device for PCI slot permanently
9429 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9430 * pending I/Os.
9432 static void
9433 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9435 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9436 "2827 PCI channel permanent disable for failure\n");
9438 /* Block all SCSI devices' I/Os on the host */
9439 lpfc_scsi_dev_block(phba);
9441 /* stop all timers */
9442 lpfc_stop_hba_timers(phba);
9444 /* Clean up all driver's outstanding SCSI I/Os */
9445 lpfc_sli_flush_fcp_rings(phba);
9449 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
9450 * @pdev: pointer to PCI device.
9451 * @state: the current PCI connection state.
9453 * This routine is called from the PCI subsystem for error handling to device
9454 * with SLI-4 interface spec. This function is called by the PCI subsystem
9455 * after a PCI bus error affecting this device has been detected. When this
9456 * function is invoked, it will need to stop all the I/Os and interrupt(s)
9457 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
9458 * for the PCI subsystem to perform proper recovery as desired.
9460 * Return codes
9461 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9462 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9464 static pci_ers_result_t
9465 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
9467 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9468 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9470 switch (state) {
9471 case pci_channel_io_normal:
9472 /* Non-fatal error, prepare for recovery */
9473 lpfc_sli4_prep_dev_for_recover(phba);
9474 return PCI_ERS_RESULT_CAN_RECOVER;
9475 case pci_channel_io_frozen:
9476 /* Fatal error, prepare for slot reset */
9477 lpfc_sli4_prep_dev_for_reset(phba);
9478 return PCI_ERS_RESULT_NEED_RESET;
9479 case pci_channel_io_perm_failure:
9480 /* Permanent failure, prepare for device down */
9481 lpfc_sli4_prep_dev_for_perm_failure(phba);
9482 return PCI_ERS_RESULT_DISCONNECT;
9483 default:
9484 /* Unknown state, prepare and request slot reset */
9485 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9486 "2825 Unknown PCI error state: x%x\n", state);
9487 lpfc_sli4_prep_dev_for_reset(phba);
9488 return PCI_ERS_RESULT_NEED_RESET;
9493 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
9494 * @pdev: pointer to PCI device.
9496 * This routine is called from the PCI subsystem for error handling to device
9497 * with SLI-4 interface spec. It is called after PCI bus has been reset to
9498 * restart the PCI card from scratch, as if from a cold-boot. During the
9499 * PCI subsystem error recovery, after the driver returns
9500 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9501 * recovery and then call this routine before calling the .resume method to
9502 * recover the device. This function will initialize the HBA device, enable
9503 * the interrupt, but it will just put the HBA to offline state without
9504 * passing any I/O traffic.
9506 * Return codes
9507 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9508 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9510 static pci_ers_result_t
9511 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
9513 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9514 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9515 struct lpfc_sli *psli = &phba->sli;
9516 uint32_t intr_mode;
9518 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9519 if (pci_enable_device_mem(pdev)) {
9520 printk(KERN_ERR "lpfc: Cannot re-enable "
9521 "PCI device after reset.\n");
9522 return PCI_ERS_RESULT_DISCONNECT;
9525 pci_restore_state(pdev);
9528 * As the new kernel behavior of pci_restore_state() API call clears
9529 * device saved_state flag, need to save the restored state again.
9531 pci_save_state(pdev);
9533 if (pdev->is_busmaster)
9534 pci_set_master(pdev);
9536 spin_lock_irq(&phba->hbalock);
9537 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9538 spin_unlock_irq(&phba->hbalock);
9540 /* Configure and enable interrupt */
9541 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9542 if (intr_mode == LPFC_INTR_ERROR) {
9543 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9544 "2824 Cannot re-enable interrupt after "
9545 "slot reset.\n");
9546 return PCI_ERS_RESULT_DISCONNECT;
9547 } else
9548 phba->intr_mode = intr_mode;
9550 /* Log the current active interrupt mode */
9551 lpfc_log_intr_mode(phba, phba->intr_mode);
9553 return PCI_ERS_RESULT_RECOVERED;
9557 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
9558 * @pdev: pointer to PCI device
9560 * This routine is called from the PCI subsystem for error handling to device
9561 * with SLI-4 interface spec. It is called when kernel error recovery tells
9562 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9563 * error recovery. After this call, traffic can start to flow from this device
9564 * again.
9566 static void
9567 lpfc_io_resume_s4(struct pci_dev *pdev)
9569 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9570 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9573 * In case of slot reset, as function reset is performed through
9574 * mailbox command which needs DMA to be enabled, this operation
9575 * has to be moved to the io resume phase. Taking device offline
9576 * will perform the necessary cleanup.
9578 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
9579 /* Perform device reset */
9580 lpfc_offline_prep(phba);
9581 lpfc_offline(phba);
9582 lpfc_sli_brdrestart(phba);
9583 /* Bring the device back online */
9584 lpfc_online(phba);
9587 /* Clean up Advanced Error Reporting (AER) if needed */
9588 if (phba->hba_flag & HBA_AER_ENABLED)
9589 pci_cleanup_aer_uncorrect_error_status(pdev);
9593 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
9594 * @pdev: pointer to PCI device
9595 * @pid: pointer to PCI device identifier
9597 * This routine is to be registered to the kernel's PCI subsystem. When an
9598 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
9599 * at PCI device-specific information of the device and driver to see if the
9600 * driver state that it can support this kind of device. If the match is
9601 * successful, the driver core invokes this routine. This routine dispatches
9602 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
9603 * do all the initialization that it needs to do to handle the HBA device
9604 * properly.
9606 * Return code
9607 * 0 - driver can claim the device
9608 * negative value - driver can not claim the device
9610 static int __devinit
9611 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
9613 int rc;
9614 struct lpfc_sli_intf intf;
9616 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
9617 return -ENODEV;
9619 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
9620 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
9621 rc = lpfc_pci_probe_one_s4(pdev, pid);
9622 else
9623 rc = lpfc_pci_probe_one_s3(pdev, pid);
9625 return rc;
9629 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
9630 * @pdev: pointer to PCI device
9632 * This routine is to be registered to the kernel's PCI subsystem. When an
9633 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
9634 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
9635 * remove routine, which will perform all the necessary cleanup for the
9636 * device to be removed from the PCI subsystem properly.
9638 static void __devexit
9639 lpfc_pci_remove_one(struct pci_dev *pdev)
9641 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9642 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9644 switch (phba->pci_dev_grp) {
9645 case LPFC_PCI_DEV_LP:
9646 lpfc_pci_remove_one_s3(pdev);
9647 break;
9648 case LPFC_PCI_DEV_OC:
9649 lpfc_pci_remove_one_s4(pdev);
9650 break;
9651 default:
9652 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9653 "1424 Invalid PCI device group: 0x%x\n",
9654 phba->pci_dev_grp);
9655 break;
9657 return;
9661 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
9662 * @pdev: pointer to PCI device
9663 * @msg: power management message
9665 * This routine is to be registered to the kernel's PCI subsystem to support
9666 * system Power Management (PM). When PM invokes this method, it dispatches
9667 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
9668 * suspend the device.
9670 * Return code
9671 * 0 - driver suspended the device
9672 * Error otherwise
9674 static int
9675 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
9677 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9678 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9679 int rc = -ENODEV;
9681 switch (phba->pci_dev_grp) {
9682 case LPFC_PCI_DEV_LP:
9683 rc = lpfc_pci_suspend_one_s3(pdev, msg);
9684 break;
9685 case LPFC_PCI_DEV_OC:
9686 rc = lpfc_pci_suspend_one_s4(pdev, msg);
9687 break;
9688 default:
9689 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9690 "1425 Invalid PCI device group: 0x%x\n",
9691 phba->pci_dev_grp);
9692 break;
9694 return rc;
9698 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
9699 * @pdev: pointer to PCI device
9701 * This routine is to be registered to the kernel's PCI subsystem to support
9702 * system Power Management (PM). When PM invokes this method, it dispatches
9703 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
9704 * resume the device.
9706 * Return code
9707 * 0 - driver suspended the device
9708 * Error otherwise
9710 static int
9711 lpfc_pci_resume_one(struct pci_dev *pdev)
9713 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9714 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9715 int rc = -ENODEV;
9717 switch (phba->pci_dev_grp) {
9718 case LPFC_PCI_DEV_LP:
9719 rc = lpfc_pci_resume_one_s3(pdev);
9720 break;
9721 case LPFC_PCI_DEV_OC:
9722 rc = lpfc_pci_resume_one_s4(pdev);
9723 break;
9724 default:
9725 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9726 "1426 Invalid PCI device group: 0x%x\n",
9727 phba->pci_dev_grp);
9728 break;
9730 return rc;
9734 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
9735 * @pdev: pointer to PCI device.
9736 * @state: the current PCI connection state.
9738 * This routine is registered to the PCI subsystem for error handling. This
9739 * function is called by the PCI subsystem after a PCI bus error affecting
9740 * this device has been detected. When this routine is invoked, it dispatches
9741 * the action to the proper SLI-3 or SLI-4 device error detected handling
9742 * routine, which will perform the proper error detected operation.
9744 * Return codes
9745 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9746 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9748 static pci_ers_result_t
9749 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9751 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9752 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9753 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9755 switch (phba->pci_dev_grp) {
9756 case LPFC_PCI_DEV_LP:
9757 rc = lpfc_io_error_detected_s3(pdev, state);
9758 break;
9759 case LPFC_PCI_DEV_OC:
9760 rc = lpfc_io_error_detected_s4(pdev, state);
9761 break;
9762 default:
9763 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9764 "1427 Invalid PCI device group: 0x%x\n",
9765 phba->pci_dev_grp);
9766 break;
9768 return rc;
9772 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
9773 * @pdev: pointer to PCI device.
9775 * This routine is registered to the PCI subsystem for error handling. This
9776 * function is called after PCI bus has been reset to restart the PCI card
9777 * from scratch, as if from a cold-boot. When this routine is invoked, it
9778 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
9779 * routine, which will perform the proper device reset.
9781 * Return codes
9782 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9783 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9785 static pci_ers_result_t
9786 lpfc_io_slot_reset(struct pci_dev *pdev)
9788 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9789 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9790 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9792 switch (phba->pci_dev_grp) {
9793 case LPFC_PCI_DEV_LP:
9794 rc = lpfc_io_slot_reset_s3(pdev);
9795 break;
9796 case LPFC_PCI_DEV_OC:
9797 rc = lpfc_io_slot_reset_s4(pdev);
9798 break;
9799 default:
9800 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9801 "1428 Invalid PCI device group: 0x%x\n",
9802 phba->pci_dev_grp);
9803 break;
9805 return rc;
9809 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
9810 * @pdev: pointer to PCI device
9812 * This routine is registered to the PCI subsystem for error handling. It
9813 * is called when kernel error recovery tells the lpfc driver that it is
9814 * OK to resume normal PCI operation after PCI bus error recovery. When
9815 * this routine is invoked, it dispatches the action to the proper SLI-3
9816 * or SLI-4 device io_resume routine, which will resume the device operation.
9818 static void
9819 lpfc_io_resume(struct pci_dev *pdev)
9821 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9822 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9824 switch (phba->pci_dev_grp) {
9825 case LPFC_PCI_DEV_LP:
9826 lpfc_io_resume_s3(pdev);
9827 break;
9828 case LPFC_PCI_DEV_OC:
9829 lpfc_io_resume_s4(pdev);
9830 break;
9831 default:
9832 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9833 "1429 Invalid PCI device group: 0x%x\n",
9834 phba->pci_dev_grp);
9835 break;
9837 return;
9840 static struct pci_device_id lpfc_id_table[] = {
9841 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
9842 PCI_ANY_ID, PCI_ANY_ID, },
9843 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
9844 PCI_ANY_ID, PCI_ANY_ID, },
9845 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
9846 PCI_ANY_ID, PCI_ANY_ID, },
9847 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
9848 PCI_ANY_ID, PCI_ANY_ID, },
9849 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
9850 PCI_ANY_ID, PCI_ANY_ID, },
9851 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
9852 PCI_ANY_ID, PCI_ANY_ID, },
9853 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
9854 PCI_ANY_ID, PCI_ANY_ID, },
9855 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
9856 PCI_ANY_ID, PCI_ANY_ID, },
9857 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
9858 PCI_ANY_ID, PCI_ANY_ID, },
9859 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
9860 PCI_ANY_ID, PCI_ANY_ID, },
9861 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
9862 PCI_ANY_ID, PCI_ANY_ID, },
9863 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
9864 PCI_ANY_ID, PCI_ANY_ID, },
9865 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
9866 PCI_ANY_ID, PCI_ANY_ID, },
9867 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
9868 PCI_ANY_ID, PCI_ANY_ID, },
9869 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
9870 PCI_ANY_ID, PCI_ANY_ID, },
9871 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
9872 PCI_ANY_ID, PCI_ANY_ID, },
9873 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
9874 PCI_ANY_ID, PCI_ANY_ID, },
9875 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
9876 PCI_ANY_ID, PCI_ANY_ID, },
9877 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
9878 PCI_ANY_ID, PCI_ANY_ID, },
9879 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
9880 PCI_ANY_ID, PCI_ANY_ID, },
9881 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
9882 PCI_ANY_ID, PCI_ANY_ID, },
9883 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
9884 PCI_ANY_ID, PCI_ANY_ID, },
9885 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
9886 PCI_ANY_ID, PCI_ANY_ID, },
9887 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
9888 PCI_ANY_ID, PCI_ANY_ID, },
9889 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
9890 PCI_ANY_ID, PCI_ANY_ID, },
9891 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
9892 PCI_ANY_ID, PCI_ANY_ID, },
9893 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
9894 PCI_ANY_ID, PCI_ANY_ID, },
9895 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
9896 PCI_ANY_ID, PCI_ANY_ID, },
9897 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
9898 PCI_ANY_ID, PCI_ANY_ID, },
9899 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
9900 PCI_ANY_ID, PCI_ANY_ID, },
9901 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
9902 PCI_ANY_ID, PCI_ANY_ID, },
9903 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
9904 PCI_ANY_ID, PCI_ANY_ID, },
9905 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
9906 PCI_ANY_ID, PCI_ANY_ID, },
9907 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
9908 PCI_ANY_ID, PCI_ANY_ID, },
9909 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
9910 PCI_ANY_ID, PCI_ANY_ID, },
9911 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
9912 PCI_ANY_ID, PCI_ANY_ID, },
9913 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
9914 PCI_ANY_ID, PCI_ANY_ID, },
9915 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
9916 PCI_ANY_ID, PCI_ANY_ID, },
9917 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
9918 PCI_ANY_ID, PCI_ANY_ID, },
9919 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
9920 PCI_ANY_ID, PCI_ANY_ID, },
9921 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
9922 PCI_ANY_ID, PCI_ANY_ID, },
9923 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
9924 PCI_ANY_ID, PCI_ANY_ID, },
9925 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
9926 PCI_ANY_ID, PCI_ANY_ID, },
9927 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
9928 PCI_ANY_ID, PCI_ANY_ID, },
9929 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
9930 PCI_ANY_ID, PCI_ANY_ID, },
9931 { 0 }
9934 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
9936 static struct pci_error_handlers lpfc_err_handler = {
9937 .error_detected = lpfc_io_error_detected,
9938 .slot_reset = lpfc_io_slot_reset,
9939 .resume = lpfc_io_resume,
9942 static struct pci_driver lpfc_driver = {
9943 .name = LPFC_DRIVER_NAME,
9944 .id_table = lpfc_id_table,
9945 .probe = lpfc_pci_probe_one,
9946 .remove = __devexit_p(lpfc_pci_remove_one),
9947 .suspend = lpfc_pci_suspend_one,
9948 .resume = lpfc_pci_resume_one,
9949 .err_handler = &lpfc_err_handler,
9953 * lpfc_init - lpfc module initialization routine
9955 * This routine is to be invoked when the lpfc module is loaded into the
9956 * kernel. The special kernel macro module_init() is used to indicate the
9957 * role of this routine to the kernel as lpfc module entry point.
9959 * Return codes
9960 * 0 - successful
9961 * -ENOMEM - FC attach transport failed
9962 * all others - failed
9964 static int __init
9965 lpfc_init(void)
9967 int error = 0;
9969 printk(LPFC_MODULE_DESC "\n");
9970 printk(LPFC_COPYRIGHT "\n");
9972 if (lpfc_enable_npiv) {
9973 lpfc_transport_functions.vport_create = lpfc_vport_create;
9974 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
9976 lpfc_transport_template =
9977 fc_attach_transport(&lpfc_transport_functions);
9978 if (lpfc_transport_template == NULL)
9979 return -ENOMEM;
9980 if (lpfc_enable_npiv) {
9981 lpfc_vport_transport_template =
9982 fc_attach_transport(&lpfc_vport_transport_functions);
9983 if (lpfc_vport_transport_template == NULL) {
9984 fc_release_transport(lpfc_transport_template);
9985 return -ENOMEM;
9988 error = pci_register_driver(&lpfc_driver);
9989 if (error) {
9990 fc_release_transport(lpfc_transport_template);
9991 if (lpfc_enable_npiv)
9992 fc_release_transport(lpfc_vport_transport_template);
9995 return error;
9999 * lpfc_exit - lpfc module removal routine
10001 * This routine is invoked when the lpfc module is removed from the kernel.
10002 * The special kernel macro module_exit() is used to indicate the role of
10003 * this routine to the kernel as lpfc module exit point.
10005 static void __exit
10006 lpfc_exit(void)
10008 pci_unregister_driver(&lpfc_driver);
10009 fc_release_transport(lpfc_transport_template);
10010 if (lpfc_enable_npiv)
10011 fc_release_transport(lpfc_vport_transport_template);
10012 if (_dump_buf_data) {
10013 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
10014 "_dump_buf_data at 0x%p\n",
10015 (1L << _dump_buf_data_order), _dump_buf_data);
10016 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
10019 if (_dump_buf_dif) {
10020 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
10021 "_dump_buf_dif at 0x%p\n",
10022 (1L << _dump_buf_dif_order), _dump_buf_dif);
10023 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
10027 module_init(lpfc_init);
10028 module_exit(lpfc_exit);
10029 MODULE_LICENSE("GPL");
10030 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
10031 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
10032 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);