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[SCSI] lpfc 8.3.27: Changed worst case mailbox timeout
[deliverable/linux.git] / drivers / scsi / lpfc / lpfc_init.c
CommitLineData
dea3101e 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
c44ce173 3 * Fibre Channel Host Bus Adapters. *
792581de 4 * Copyright (C) 2004-2011 Emulex. All rights reserved. *
c44ce173 5 * EMULEX and SLI are trademarks of Emulex. *
dea3101e 6 * www.emulex.com *
c44ce173 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
dea3101e 8 * *
9 * This program is free software; you can redistribute it and/or *
c44ce173
JSEC		 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. *
dea3101e 20 *******************************************************************/
21
dea3101e 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/kthread.h>
28#include <linux/pci.h>
29#include <linux/spinlock.h>
92d7f7b0 30#include <linux/ctype.h>
0d878419 31#include <linux/aer.h>
5a0e3ad6 32#include <linux/slab.h>
52d52440 33#include <linux/firmware.h>
dea3101e 34
91886523 35#include <scsi/scsi.h>
dea3101e 36#include <scsi/scsi_device.h>
37#include <scsi/scsi_host.h>
38#include <scsi/scsi_transport_fc.h>
39
da0436e9 40#include "lpfc_hw4.h"
dea3101e 41#include "lpfc_hw.h"
42#include "lpfc_sli.h"
da0436e9 43#include "lpfc_sli4.h"
ea2151b4 44#include "lpfc_nl.h"
dea3101e 45#include "lpfc_disc.h"
46#include "lpfc_scsi.h"
47#include "lpfc.h"
48#include "lpfc_logmsg.h"
49#include "lpfc_crtn.h"
92d7f7b0 50#include "lpfc_vport.h"
dea3101e 51#include "lpfc_version.h"
52
81301a9b
JS		 53char *_dump_buf_data;
54unsigned long _dump_buf_data_order;
55char *_dump_buf_dif;
56unsigned long _dump_buf_dif_order;
57spinlock_t _dump_buf_lock;
58
dea3101e 59static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
60static int lpfc_post_rcv_buf(struct lpfc_hba *);
da0436e9
JS		 61static int lpfc_sli4_queue_create(struct lpfc_hba *);
62static void lpfc_sli4_queue_destroy(struct lpfc_hba *);
63static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
64static int lpfc_setup_endian_order(struct lpfc_hba *);
65static int lpfc_sli4_read_config(struct lpfc_hba *);
66static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
67static void lpfc_free_sgl_list(struct lpfc_hba *);
68static int lpfc_init_sgl_list(struct lpfc_hba *);
69static int lpfc_init_active_sgl_array(struct lpfc_hba *);
70static void lpfc_free_active_sgl(struct lpfc_hba *);
71static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
72static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
73static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
74static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
75static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
dea3101e 76
77static struct scsi_transport_template *lpfc_transport_template = NULL;
92d7f7b0 78static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
dea3101e 79static DEFINE_IDR(lpfc_hba_index);
80
e59058c4 81/**
3621a710 82 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
e59058c4
JS		 83 * @phba: pointer to lpfc hba data structure.
84 *
85 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
86 * mailbox command. It retrieves the revision information from the HBA and
87 * collects the Vital Product Data (VPD) about the HBA for preparing the
88 * configuration of the HBA.
89 *
90 * Return codes:
91 * 0 - success.
92 * -ERESTART - requests the SLI layer to reset the HBA and try again.
93 * Any other value - indicates an error.
94 **/
dea3101e 95int
2e0fef85 96lpfc_config_port_prep(struct lpfc_hba *phba)
dea3101e 97{
98 lpfc_vpd_t *vp = &phba->vpd;
99 int i = 0, rc;
100 LPFC_MBOXQ_t *pmb;
101 MAILBOX_t *mb;
102 char *lpfc_vpd_data = NULL;
103 uint16_t offset = 0;
104 static char licensed[56] =
105 "key unlock for use with gnu public licensed code only\0";
65a29c16 106 static int init_key = 1;
dea3101e 107
108 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
109 if (!pmb) {
2e0fef85 110 phba->link_state = LPFC_HBA_ERROR;
dea3101e 111 return -ENOMEM;
112 }
113
04c68496 114 mb = &pmb->u.mb;
2e0fef85 115 phba->link_state = LPFC_INIT_MBX_CMDS;
dea3101e 116
117 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
65a29c16
JS		 118 if (init_key) {
119 uint32_t *ptext = (uint32_t *) licensed;
dea3101e 120
65a29c16
JS		 121 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
122 *ptext = cpu_to_be32(*ptext);
123 init_key = 0;
124 }
dea3101e 125
126 lpfc_read_nv(phba, pmb);
127 memset((char*)mb->un.varRDnvp.rsvd3, 0,
128 sizeof (mb->un.varRDnvp.rsvd3));
129 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
130 sizeof (licensed));
131
132 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
133
134 if (rc != MBX_SUCCESS) {
ed957684 135 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
e8b62011 136 "0324 Config Port initialization "
dea3101e 137 "error, mbxCmd x%x READ_NVPARM, "
138 "mbxStatus x%x\n",
dea3101e 139 mb->mbxCommand, mb->mbxStatus);
140 mempool_free(pmb, phba->mbox_mem_pool);
141 return -ERESTART;
142 }
143 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
2e0fef85
JS		 144 sizeof(phba->wwnn));
145 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
146 sizeof(phba->wwpn));
dea3101e 147 }
148
92d7f7b0
JS		 149 phba->sli3_options = 0x0;
150
dea3101e 151 /* Setup and issue mailbox READ REV command */
152 lpfc_read_rev(phba, pmb);
153 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
154 if (rc != MBX_SUCCESS) {
ed957684 155 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 156 "0439 Adapter failed to init, mbxCmd x%x "
dea3101e 157 "READ_REV, mbxStatus x%x\n",
dea3101e 158 mb->mbxCommand, mb->mbxStatus);
159 mempool_free( pmb, phba->mbox_mem_pool);
160 return -ERESTART;
161 }
162
92d7f7b0 163
1de933f3
JSEC		 164 /*
165 * The value of rr must be 1 since the driver set the cv field to 1.
166 * This setting requires the FW to set all revision fields.
dea3101e 167 */
1de933f3 168 if (mb->un.varRdRev.rr == 0) {
dea3101e 169 vp->rev.rBit = 0;
1de933f3 170 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011
JS		 171 "0440 Adapter failed to init, READ_REV has "
172 "missing revision information.\n");
dea3101e 173 mempool_free(pmb, phba->mbox_mem_pool);
174 return -ERESTART;
dea3101e 175 }
176
495a714c
JS		 177 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
178 mempool_free(pmb, phba->mbox_mem_pool);
ed957684 179 return -EINVAL;
495a714c 180 }
ed957684 181
dea3101e 182 /* Save information as VPD data */
1de933f3 183 vp->rev.rBit = 1;
92d7f7b0 184 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
1de933f3
JSEC		 185 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
186 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
187 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
188 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
dea3101e 189 vp->rev.biuRev = mb->un.varRdRev.biuRev;
190 vp->rev.smRev = mb->un.varRdRev.smRev;
191 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
192 vp->rev.endecRev = mb->un.varRdRev.endecRev;
193 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
194 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
195 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
196 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
197 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
198 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
199
92d7f7b0
JS		 200 /* If the sli feature level is less then 9, we must
201 * tear down all RPIs and VPIs on link down if NPIV
202 * is enabled.
203 */
204 if (vp->rev.feaLevelHigh < 9)
205 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
206
dea3101e 207 if (lpfc_is_LC_HBA(phba->pcidev->device))
208 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
209 sizeof (phba->RandomData));
210
dea3101e 211 /* Get adapter VPD information */
dea3101e 212 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
213 if (!lpfc_vpd_data)
d7c255b2 214 goto out_free_mbox;
dea3101e 215 do {
a0c87cbd 216 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
dea3101e 217 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
218
219 if (rc != MBX_SUCCESS) {
220 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011 221 "0441 VPD not present on adapter, "
dea3101e 222 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
dea3101e 223 mb->mbxCommand, mb->mbxStatus);
74b72a59 224 mb->un.varDmp.word_cnt = 0;
dea3101e 225 }
04c68496
JS		 226 /* dump mem may return a zero when finished or we got a
227 * mailbox error, either way we are done.
228 */
229 if (mb->un.varDmp.word_cnt == 0)
230 break;
74b72a59
JW		 231 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
232 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
d7c255b2
JS		 233 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
234 lpfc_vpd_data + offset,
92d7f7b0 235 mb->un.varDmp.word_cnt);
dea3101e 236 offset += mb->un.varDmp.word_cnt;
74b72a59
JW		 237 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
238 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
dea3101e 239
240 kfree(lpfc_vpd_data);
dea3101e 241out_free_mbox:
242 mempool_free(pmb, phba->mbox_mem_pool);
243 return 0;
244}
245
e59058c4 246/**
3621a710 247 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
e59058c4
JS		 248 * @phba: pointer to lpfc hba data structure.
249 * @pmboxq: pointer to the driver internal queue element for mailbox command.
250 *
251 * This is the completion handler for driver's configuring asynchronous event
252 * mailbox command to the device. If the mailbox command returns successfully,
253 * it will set internal async event support flag to 1; otherwise, it will
254 * set internal async event support flag to 0.
255 **/
57127f15
JS		 256static void
257lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
258{
04c68496 259 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
57127f15
JS		 260 phba->temp_sensor_support = 1;
261 else
262 phba->temp_sensor_support = 0;
263 mempool_free(pmboxq, phba->mbox_mem_pool);
264 return;
265}
266
97207482 267/**
3621a710 268 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
97207482
JS		 269 * @phba: pointer to lpfc hba data structure.
270 * @pmboxq: pointer to the driver internal queue element for mailbox command.
271 *
272 * This is the completion handler for dump mailbox command for getting
273 * wake up parameters. When this command complete, the response contain
274 * Option rom version of the HBA. This function translate the version number
275 * into a human readable string and store it in OptionROMVersion.
276 **/
277static void
278lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
279{
280 struct prog_id *prg;
281 uint32_t prog_id_word;
282 char dist = ' ';
283 /* character array used for decoding dist type. */
284 char dist_char[] = "nabx";
285
04c68496 286 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
9f1e1b50 287 mempool_free(pmboxq, phba->mbox_mem_pool);
97207482 288 return;
9f1e1b50 289 }
97207482
JS		 290
291 prg = (struct prog_id *) &prog_id_word;
292
293 /* word 7 contain option rom version */
04c68496 294 prog_id_word = pmboxq->u.mb.un.varWords[7];
97207482
JS		 295
296 /* Decode the Option rom version word to a readable string */
297 if (prg->dist < 4)
298 dist = dist_char[prg->dist];
299
300 if ((prg->dist == 3) && (prg->num == 0))
301 sprintf(phba->OptionROMVersion, "%d.%d%d",
302 prg->ver, prg->rev, prg->lev);
303 else
304 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
305 prg->ver, prg->rev, prg->lev,
306 dist, prg->num);
9f1e1b50 307 mempool_free(pmboxq, phba->mbox_mem_pool);
97207482
JS		 308 return;
309}
310
0558056c
JS		 311/**
312 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
313 * cfg_soft_wwnn, cfg_soft_wwpn
314 * @vport: pointer to lpfc vport data structure.
315 *
316 *
317 * Return codes
318 * None.
319 **/
320void
321lpfc_update_vport_wwn(struct lpfc_vport *vport)
322{
323 /* If the soft name exists then update it using the service params */
324 if (vport->phba->cfg_soft_wwnn)
325 u64_to_wwn(vport->phba->cfg_soft_wwnn,
326 vport->fc_sparam.nodeName.u.wwn);
327 if (vport->phba->cfg_soft_wwpn)
328 u64_to_wwn(vport->phba->cfg_soft_wwpn,
329 vport->fc_sparam.portName.u.wwn);
330
331 /*
332 * If the name is empty or there exists a soft name
333 * then copy the service params name, otherwise use the fc name
334 */
335 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
336 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
337 sizeof(struct lpfc_name));
338 else
339 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
340 sizeof(struct lpfc_name));
341
342 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
343 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
344 sizeof(struct lpfc_name));
345 else
346 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
347 sizeof(struct lpfc_name));
348}
349
e59058c4 350/**
3621a710 351 * lpfc_config_port_post - Perform lpfc initialization after config port
e59058c4
JS		 352 * @phba: pointer to lpfc hba data structure.
353 *
354 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
355 * command call. It performs all internal resource and state setups on the
356 * port: post IOCB buffers, enable appropriate host interrupt attentions,
357 * ELS ring timers, etc.
358 *
359 * Return codes
360 * 0 - success.
361 * Any other value - error.
362 **/
dea3101e 363int
2e0fef85 364lpfc_config_port_post(struct lpfc_hba *phba)
dea3101e 365{
2e0fef85 366 struct lpfc_vport *vport = phba->pport;
a257bf90 367 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 368 LPFC_MBOXQ_t *pmb;
369 MAILBOX_t *mb;
370 struct lpfc_dmabuf *mp;
371 struct lpfc_sli *psli = &phba->sli;
372 uint32_t status, timeout;
2e0fef85
JS		 373 int i, j;
374 int rc;
dea3101e 375
7af67051
JS		 376 spin_lock_irq(&phba->hbalock);
377 /*
378 * If the Config port completed correctly the HBA is not
379 * over heated any more.
380 */
381 if (phba->over_temp_state == HBA_OVER_TEMP)
382 phba->over_temp_state = HBA_NORMAL_TEMP;
383 spin_unlock_irq(&phba->hbalock);
384
dea3101e 385 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
386 if (!pmb) {
2e0fef85 387 phba->link_state = LPFC_HBA_ERROR;
dea3101e 388 return -ENOMEM;
389 }
04c68496 390 mb = &pmb->u.mb;
dea3101e 391
dea3101e 392 /* Get login parameters for NID. */
9f1177a3
JS		 393 rc = lpfc_read_sparam(phba, pmb, 0);
394 if (rc) {
395 mempool_free(pmb, phba->mbox_mem_pool);
396 return -ENOMEM;
397 }
398
ed957684 399 pmb->vport = vport;
dea3101e 400 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
ed957684 401 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 402 "0448 Adapter failed init, mbxCmd x%x "
dea3101e 403 "READ_SPARM mbxStatus x%x\n",
dea3101e 404 mb->mbxCommand, mb->mbxStatus);
2e0fef85 405 phba->link_state = LPFC_HBA_ERROR;
dea3101e 406 mp = (struct lpfc_dmabuf *) pmb->context1;
9f1177a3 407 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 408 lpfc_mbuf_free(phba, mp->virt, mp->phys);
409 kfree(mp);
410 return -EIO;
411 }
412
413 mp = (struct lpfc_dmabuf *) pmb->context1;
414
2e0fef85 415 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
dea3101e 416 lpfc_mbuf_free(phba, mp->virt, mp->phys);
417 kfree(mp);
418 pmb->context1 = NULL;
0558056c 419 lpfc_update_vport_wwn(vport);
a257bf90
JS		 420
421 /* Update the fc_host data structures with new wwn. */
422 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
423 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
21e9a0a5 424 fc_host_max_npiv_vports(shost) = phba->max_vpi;
a257bf90 425
dea3101e 426 /* If no serial number in VPD data, use low 6 bytes of WWNN */
427 /* This should be consolidated into parse_vpd ? - mr */
428 if (phba->SerialNumber[0] == 0) {
429 uint8_t *outptr;
430
2e0fef85 431 outptr = &vport->fc_nodename.u.s.IEEE[0];
dea3101e 432 for (i = 0; i < 12; i++) {
433 status = *outptr++;
434 j = ((status & 0xf0) >> 4);
435 if (j <= 9)
436 phba->SerialNumber[i] =
437 (char)((uint8_t) 0x30 + (uint8_t) j);
438 else
439 phba->SerialNumber[i] =
440 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
441 i++;
442 j = (status & 0xf);
443 if (j <= 9)
444 phba->SerialNumber[i] =
445 (char)((uint8_t) 0x30 + (uint8_t) j);
446 else
447 phba->SerialNumber[i] =
448 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
449 }
450 }
451
dea3101e 452 lpfc_read_config(phba, pmb);
ed957684 453 pmb->vport = vport;
dea3101e 454 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
ed957684 455 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 456 "0453 Adapter failed to init, mbxCmd x%x "
dea3101e 457 "READ_CONFIG, mbxStatus x%x\n",
dea3101e 458 mb->mbxCommand, mb->mbxStatus);
2e0fef85 459 phba->link_state = LPFC_HBA_ERROR;
dea3101e 460 mempool_free( pmb, phba->mbox_mem_pool);
461 return -EIO;
462 }
463
a0c87cbd
JS		 464 /* Check if the port is disabled */
465 lpfc_sli_read_link_ste(phba);
466
dea3101e 467 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
468 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
469 phba->cfg_hba_queue_depth =
f1126688
JS		 470 (mb->un.varRdConfig.max_xri + 1) -
471 lpfc_sli4_get_els_iocb_cnt(phba);
dea3101e 472
473 phba->lmt = mb->un.varRdConfig.lmt;
74b72a59
JW		 474
475 /* Get the default values for Model Name and Description */
476 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
477
76a95d75
JS		 478 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_16G)
479 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G)
74b72a59 480 && !(phba->lmt & LMT_1Gb))
76a95d75 481 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G)
74b72a59 482 && !(phba->lmt & LMT_2Gb))
76a95d75 483 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G)
74b72a59 484 && !(phba->lmt & LMT_4Gb))
76a95d75 485 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G)
74b72a59 486 && !(phba->lmt & LMT_8Gb))
76a95d75
JS		 487 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G)
488 && !(phba->lmt & LMT_10Gb))
489 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G)
490 && !(phba->lmt & LMT_16Gb))) {
74b72a59 491 /* Reset link speed to auto */
ab56dc2e 492 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
e8b62011 493 "1302 Invalid speed for this board: "
dea3101e 494 "Reset link speed to auto: x%x\n",
dea3101e 495 phba->cfg_link_speed);
76a95d75 496 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
dea3101e 497 }
498
2e0fef85 499 phba->link_state = LPFC_LINK_DOWN;
dea3101e 500
0b727fea 501 /* Only process IOCBs on ELS ring till hba_state is READY */
a4bc3379
JS		 502 if (psli->ring[psli->extra_ring].cmdringaddr)
503 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
dea3101e 504 if (psli->ring[psli->fcp_ring].cmdringaddr)
505 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
506 if (psli->ring[psli->next_ring].cmdringaddr)
507 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
508
509 /* Post receive buffers for desired rings */
ed957684
JS		 510 if (phba->sli_rev != 3)
511 lpfc_post_rcv_buf(phba);
dea3101e 512
9399627f
JS		 513 /*
514 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
515 */
516 if (phba->intr_type == MSIX) {
517 rc = lpfc_config_msi(phba, pmb);
518 if (rc) {
519 mempool_free(pmb, phba->mbox_mem_pool);
520 return -EIO;
521 }
522 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
523 if (rc != MBX_SUCCESS) {
524 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
525 "0352 Config MSI mailbox command "
526 "failed, mbxCmd x%x, mbxStatus x%x\n",
04c68496
JS		 527 pmb->u.mb.mbxCommand,
528 pmb->u.mb.mbxStatus);
9399627f
JS		 529 mempool_free(pmb, phba->mbox_mem_pool);
530 return -EIO;
531 }
532 }
533
04c68496 534 spin_lock_irq(&phba->hbalock);
9399627f
JS		 535 /* Initialize ERATT handling flag */
536 phba->hba_flag &= ~HBA_ERATT_HANDLED;
537
dea3101e 538 /* Enable appropriate host interrupts */
9940b97b
JS		 539 if (lpfc_readl(phba->HCregaddr, &status)) {
540 spin_unlock_irq(&phba->hbalock);
541 return -EIO;
542 }
dea3101e 543 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
544 if (psli->num_rings > 0)
545 status |= HC_R0INT_ENA;
546 if (psli->num_rings > 1)
547 status |= HC_R1INT_ENA;
548 if (psli->num_rings > 2)
549 status |= HC_R2INT_ENA;
550 if (psli->num_rings > 3)
551 status |= HC_R3INT_ENA;
552
875fbdfe
JSEC		 553 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
554 (phba->cfg_poll & DISABLE_FCP_RING_INT))
9399627f 555 status &= ~(HC_R0INT_ENA);
875fbdfe 556
dea3101e 557 writel(status, phba->HCregaddr);
558 readl(phba->HCregaddr); /* flush */
2e0fef85 559 spin_unlock_irq(&phba->hbalock);
dea3101e 560
9399627f
JS		 561 /* Set up ring-0 (ELS) timer */
562 timeout = phba->fc_ratov * 2;
2e0fef85 563 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
9399627f 564 /* Set up heart beat (HB) timer */
858c9f6c
JS		 565 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
566 phba->hb_outstanding = 0;
567 phba->last_completion_time = jiffies;
9399627f
JS		 568 /* Set up error attention (ERATT) polling timer */
569 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
dea3101e 570
a0c87cbd
JS		 571 if (phba->hba_flag & LINK_DISABLED) {
572 lpfc_printf_log(phba,
573 KERN_ERR, LOG_INIT,
574 "2598 Adapter Link is disabled.\n");
575 lpfc_down_link(phba, pmb);
576 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
577 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
578 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
579 lpfc_printf_log(phba,
580 KERN_ERR, LOG_INIT,
581 "2599 Adapter failed to issue DOWN_LINK"
582 " mbox command rc 0x%x\n", rc);
583
584 mempool_free(pmb, phba->mbox_mem_pool);
585 return -EIO;
586 }
e40a02c1 587 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
a0c87cbd
JS		 588 lpfc_init_link(phba, pmb, phba->cfg_topology,
589 phba->cfg_link_speed);
590 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
591 lpfc_set_loopback_flag(phba);
592 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
593 if (rc != MBX_SUCCESS) {
594 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 595 "0454 Adapter failed to init, mbxCmd x%x "
dea3101e 596 "INIT_LINK, mbxStatus x%x\n",
dea3101e 597 mb->mbxCommand, mb->mbxStatus);
598
a0c87cbd
JS		 599 /* Clear all interrupt enable conditions */
600 writel(0, phba->HCregaddr);
601 readl(phba->HCregaddr); /* flush */
602 /* Clear all pending interrupts */
603 writel(0xffffffff, phba->HAregaddr);
604 readl(phba->HAregaddr); /* flush */
a0c87cbd
JS		 605 phba->link_state = LPFC_HBA_ERROR;
606 if (rc != MBX_BUSY)
607 mempool_free(pmb, phba->mbox_mem_pool);
608 return -EIO;
609 }
dea3101e 610 }
611 /* MBOX buffer will be freed in mbox compl */
57127f15 612 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9f1177a3
JS		 613 if (!pmb) {
614 phba->link_state = LPFC_HBA_ERROR;
615 return -ENOMEM;
616 }
617
57127f15
JS		 618 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
619 pmb->mbox_cmpl = lpfc_config_async_cmpl;
620 pmb->vport = phba->pport;
621 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
dea3101e 622
57127f15
JS		 623 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
624 lpfc_printf_log(phba,
625 KERN_ERR,
626 LOG_INIT,
627 "0456 Adapter failed to issue "
e4e74273 628 "ASYNCEVT_ENABLE mbox status x%x\n",
57127f15
JS		 629 rc);
630 mempool_free(pmb, phba->mbox_mem_pool);
631 }
97207482
JS		 632
633 /* Get Option rom version */
634 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9f1177a3
JS		 635 if (!pmb) {
636 phba->link_state = LPFC_HBA_ERROR;
637 return -ENOMEM;
638 }
639
97207482
JS		 640 lpfc_dump_wakeup_param(phba, pmb);
641 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
642 pmb->vport = phba->pport;
643 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
644
645 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
646 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
e4e74273 647 "to get Option ROM version status x%x\n", rc);
97207482
JS		 648 mempool_free(pmb, phba->mbox_mem_pool);
649 }
650
d7c255b2 651 return 0;
ce8b3ce5
JS		 652}
653
84d1b006
JS		 654/**
655 * lpfc_hba_init_link - Initialize the FC link
656 * @phba: pointer to lpfc hba data structure.
6e7288d9 657 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
84d1b006
JS		 658 *
659 * This routine will issue the INIT_LINK mailbox command call.
660 * It is available to other drivers through the lpfc_hba data
661 * structure for use as a delayed link up mechanism with the
662 * module parameter lpfc_suppress_link_up.
663 *
664 * Return code
665 * 0 - success
666 * Any other value - error
667 **/
668int
6e7288d9 669lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
84d1b006
JS		 670{
671 struct lpfc_vport *vport = phba->pport;
672 LPFC_MBOXQ_t *pmb;
673 MAILBOX_t *mb;
674 int rc;
675
676 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
677 if (!pmb) {
678 phba->link_state = LPFC_HBA_ERROR;
679 return -ENOMEM;
680 }
681 mb = &pmb->u.mb;
682 pmb->vport = vport;
683
76a95d75 684 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
84d1b006
JS		 685 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
686 lpfc_set_loopback_flag(phba);
6e7288d9 687 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
76a95d75 688 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
84d1b006
JS		 689 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
690 "0498 Adapter failed to init, mbxCmd x%x "
691 "INIT_LINK, mbxStatus x%x\n",
692 mb->mbxCommand, mb->mbxStatus);
76a95d75
JS		 693 if (phba->sli_rev <= LPFC_SLI_REV3) {
694 /* Clear all interrupt enable conditions */
695 writel(0, phba->HCregaddr);
696 readl(phba->HCregaddr); /* flush */
697 /* Clear all pending interrupts */
698 writel(0xffffffff, phba->HAregaddr);
699 readl(phba->HAregaddr); /* flush */
700 }
84d1b006 701 phba->link_state = LPFC_HBA_ERROR;
6e7288d9 702 if (rc != MBX_BUSY || flag == MBX_POLL)
84d1b006
JS		 703 mempool_free(pmb, phba->mbox_mem_pool);
704 return -EIO;
705 }
e40a02c1 706 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
6e7288d9
JS		 707 if (flag == MBX_POLL)
708 mempool_free(pmb, phba->mbox_mem_pool);
84d1b006
JS		 709
710 return 0;
711}
712
713/**
714 * lpfc_hba_down_link - this routine downs the FC link
6e7288d9
JS		 715 * @phba: pointer to lpfc hba data structure.
716 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
84d1b006
JS		 717 *
718 * This routine will issue the DOWN_LINK mailbox command call.
719 * It is available to other drivers through the lpfc_hba data
720 * structure for use to stop the link.
721 *
722 * Return code
723 * 0 - success
724 * Any other value - error
725 **/
726int
6e7288d9 727lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
84d1b006
JS		 728{
729 LPFC_MBOXQ_t *pmb;
730 int rc;
731
732 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
733 if (!pmb) {
734 phba->link_state = LPFC_HBA_ERROR;
735 return -ENOMEM;
736 }
737
738 lpfc_printf_log(phba,
739 KERN_ERR, LOG_INIT,
740 "0491 Adapter Link is disabled.\n");
741 lpfc_down_link(phba, pmb);
742 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
6e7288d9 743 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
84d1b006
JS		 744 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
745 lpfc_printf_log(phba,
746 KERN_ERR, LOG_INIT,
747 "2522 Adapter failed to issue DOWN_LINK"
748 " mbox command rc 0x%x\n", rc);
749
750 mempool_free(pmb, phba->mbox_mem_pool);
751 return -EIO;
752 }
6e7288d9
JS		 753 if (flag == MBX_POLL)
754 mempool_free(pmb, phba->mbox_mem_pool);
755
84d1b006
JS		 756 return 0;
757}
758
e59058c4 759/**
3621a710 760 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
e59058c4
JS		 761 * @phba: pointer to lpfc HBA data structure.
762 *
763 * This routine will do LPFC uninitialization before the HBA is reset when
764 * bringing down the SLI Layer.
765 *
766 * Return codes
767 * 0 - success.
768 * Any other value - error.
769 **/
dea3101e 770int
2e0fef85 771lpfc_hba_down_prep(struct lpfc_hba *phba)
dea3101e 772{
1b32f6aa
JS		 773 struct lpfc_vport **vports;
774 int i;
3772a991
JS		 775
776 if (phba->sli_rev <= LPFC_SLI_REV3) {
777 /* Disable interrupts */
778 writel(0, phba->HCregaddr);
779 readl(phba->HCregaddr); /* flush */
780 }
dea3101e 781
1b32f6aa
JS		 782 if (phba->pport->load_flag & FC_UNLOADING)
783 lpfc_cleanup_discovery_resources(phba->pport);
784 else {
785 vports = lpfc_create_vport_work_array(phba);
786 if (vports != NULL)
3772a991
JS		 787 for (i = 0; i <= phba->max_vports &&
788 vports[i] != NULL; i++)
1b32f6aa
JS		 789 lpfc_cleanup_discovery_resources(vports[i]);
790 lpfc_destroy_vport_work_array(phba, vports);
7f5f3d0d
JS		 791 }
792 return 0;
dea3101e 793}
794
e59058c4 795/**
3772a991 796 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
e59058c4
JS		 797 * @phba: pointer to lpfc HBA data structure.
798 *
799 * This routine will do uninitialization after the HBA is reset when bring
800 * down the SLI Layer.
801 *
802 * Return codes
af901ca1 803 * 0 - success.
e59058c4
JS		 804 * Any other value - error.
805 **/
3772a991
JS		 806static int
807lpfc_hba_down_post_s3(struct lpfc_hba *phba)
41415862
JW		 808{
809 struct lpfc_sli *psli = &phba->sli;
810 struct lpfc_sli_ring *pring;
811 struct lpfc_dmabuf *mp, *next_mp;
09372820 812 LIST_HEAD(completions);
41415862
JW		 813 int i;
814
92d7f7b0
JS		 815 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
816 lpfc_sli_hbqbuf_free_all(phba);
817 else {
818 /* Cleanup preposted buffers on the ELS ring */
819 pring = &psli->ring[LPFC_ELS_RING];
820 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
821 list_del(&mp->list);
822 pring->postbufq_cnt--;
823 lpfc_mbuf_free(phba, mp->virt, mp->phys);
824 kfree(mp);
825 }
41415862
JW		 826 }
827
09372820 828 spin_lock_irq(&phba->hbalock);
41415862
JW		 829 for (i = 0; i < psli->num_rings; i++) {
830 pring = &psli->ring[i];
09372820
JS		 831
832 /* At this point in time the HBA is either reset or DOA. Either
833 * way, nothing should be on txcmplq as it will NEVER complete.
834 */
835 list_splice_init(&pring->txcmplq, &completions);
836 pring->txcmplq_cnt = 0;
837 spin_unlock_irq(&phba->hbalock);
838
a257bf90
JS		 839 /* Cancel all the IOCBs from the completions list */
840 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
841 IOERR_SLI_ABORTED);
09372820 842
41415862 843 lpfc_sli_abort_iocb_ring(phba, pring);
09372820 844 spin_lock_irq(&phba->hbalock);
41415862 845 }
09372820 846 spin_unlock_irq(&phba->hbalock);
41415862
JW		 847
848 return 0;
849}
5af5eee7 850
da0436e9
JS		 851/**
852 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
853 * @phba: pointer to lpfc HBA data structure.
854 *
855 * This routine will do uninitialization after the HBA is reset when bring
856 * down the SLI Layer.
857 *
858 * Return codes
af901ca1 859 * 0 - success.
da0436e9
JS		 860 * Any other value - error.
861 **/
862static int
863lpfc_hba_down_post_s4(struct lpfc_hba *phba)
864{
865 struct lpfc_scsi_buf *psb, *psb_next;
866 LIST_HEAD(aborts);
867 int ret;
868 unsigned long iflag = 0;
0f65ff68
JS		 869 struct lpfc_sglq *sglq_entry = NULL;
870
da0436e9
JS		 871 ret = lpfc_hba_down_post_s3(phba);
872 if (ret)
873 return ret;
874 /* At this point in time the HBA is either reset or DOA. Either
875 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
876 * on the lpfc_sgl_list so that it can either be freed if the
877 * driver is unloading or reposted if the driver is restarting
878 * the port.
879 */
880 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
881 /* scsl_buf_list */
882 /* abts_sgl_list_lock required because worker thread uses this
883 * list.
884 */
885 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
0f65ff68
JS		 886 list_for_each_entry(sglq_entry,
887 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
888 sglq_entry->state = SGL_FREED;
889
da0436e9
JS		 890 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
891 &phba->sli4_hba.lpfc_sgl_list);
892 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
893 /* abts_scsi_buf_list_lock required because worker thread uses this
894 * list.
895 */
896 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
897 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
898 &aborts);
899 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
900 spin_unlock_irq(&phba->hbalock);
901
902 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
903 psb->pCmd = NULL;
904 psb->status = IOSTAT_SUCCESS;
905 }
906 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
907 list_splice(&aborts, &phba->lpfc_scsi_buf_list);
908 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
909 return 0;
910}
911
912/**
913 * lpfc_hba_down_post - Wrapper func for hba down post routine
914 * @phba: pointer to lpfc HBA data structure.
915 *
916 * This routine wraps the actual SLI3 or SLI4 routine for performing
917 * uninitialization after the HBA is reset when bring down the SLI Layer.
918 *
919 * Return codes
af901ca1 920 * 0 - success.
da0436e9
JS		 921 * Any other value - error.
922 **/
923int
924lpfc_hba_down_post(struct lpfc_hba *phba)
925{
926 return (*phba->lpfc_hba_down_post)(phba);
927}
41415862 928
e59058c4 929/**
3621a710 930 * lpfc_hb_timeout - The HBA-timer timeout handler
e59058c4
JS		 931 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
932 *
933 * This is the HBA-timer timeout handler registered to the lpfc driver. When
934 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
935 * work-port-events bitmap and the worker thread is notified. This timeout
936 * event will be used by the worker thread to invoke the actual timeout
937 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
938 * be performed in the timeout handler and the HBA timeout event bit shall
939 * be cleared by the worker thread after it has taken the event bitmap out.
940 **/
a6ababd2 941static void
858c9f6c
JS		 942lpfc_hb_timeout(unsigned long ptr)
943{
944 struct lpfc_hba *phba;
5e9d9b82 945 uint32_t tmo_posted;
858c9f6c
JS		 946 unsigned long iflag;
947
948 phba = (struct lpfc_hba *)ptr;
9399627f
JS		 949
950 /* Check for heart beat timeout conditions */
858c9f6c 951 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
5e9d9b82
JS		 952 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
953 if (!tmo_posted)
858c9f6c
JS		 954 phba->pport->work_port_events |= WORKER_HB_TMO;
955 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
956
9399627f 957 /* Tell the worker thread there is work to do */
5e9d9b82
JS		 958 if (!tmo_posted)
959 lpfc_worker_wake_up(phba);
858c9f6c
JS		 960 return;
961}
962
19ca7609
JS		 963/**
964 * lpfc_rrq_timeout - The RRQ-timer timeout handler
965 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
966 *
967 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
968 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
969 * work-port-events bitmap and the worker thread is notified. This timeout
970 * event will be used by the worker thread to invoke the actual timeout
971 * handler routine, lpfc_rrq_handler. Any periodical operations will
972 * be performed in the timeout handler and the RRQ timeout event bit shall
973 * be cleared by the worker thread after it has taken the event bitmap out.
974 **/
975static void
976lpfc_rrq_timeout(unsigned long ptr)
977{
978 struct lpfc_hba *phba;
19ca7609
JS		 979 unsigned long iflag;
980
981 phba = (struct lpfc_hba *)ptr;
982 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1151e3ec 983 phba->hba_flag |= HBA_RRQ_ACTIVE;
19ca7609 984 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1151e3ec 985 lpfc_worker_wake_up(phba);
19ca7609
JS		 986}
987
e59058c4 988/**
3621a710 989 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
e59058c4
JS		 990 * @phba: pointer to lpfc hba data structure.
991 * @pmboxq: pointer to the driver internal queue element for mailbox command.
992 *
993 * This is the callback function to the lpfc heart-beat mailbox command.
994 * If configured, the lpfc driver issues the heart-beat mailbox command to
995 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
996 * heart-beat mailbox command is issued, the driver shall set up heart-beat
997 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
998 * heart-beat outstanding state. Once the mailbox command comes back and
999 * no error conditions detected, the heart-beat mailbox command timer is
1000 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1001 * state is cleared for the next heart-beat. If the timer expired with the
1002 * heart-beat outstanding state set, the driver will put the HBA offline.
1003 **/
858c9f6c
JS		 1004static void
1005lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1006{
1007 unsigned long drvr_flag;
1008
1009 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1010 phba->hb_outstanding = 0;
1011 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1012
9399627f 1013 /* Check and reset heart-beat timer is necessary */
858c9f6c
JS		 1014 mempool_free(pmboxq, phba->mbox_mem_pool);
1015 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1016 !(phba->link_state == LPFC_HBA_ERROR) &&
51ef4c26 1017 !(phba->pport->load_flag & FC_UNLOADING))
858c9f6c
JS		 1018 mod_timer(&phba->hb_tmofunc,
1019 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1020 return;
1021}
1022
e59058c4 1023/**
3621a710 1024 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
e59058c4
JS		 1025 * @phba: pointer to lpfc hba data structure.
1026 *
1027 * This is the actual HBA-timer timeout handler to be invoked by the worker
1028 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1029 * handler performs any periodic operations needed for the device. If such
1030 * periodic event has already been attended to either in the interrupt handler
1031 * or by processing slow-ring or fast-ring events within the HBA-timer
1032 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1033 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1034 * is configured and there is no heart-beat mailbox command outstanding, a
1035 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1036 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1037 * to offline.
1038 **/
858c9f6c
JS		 1039void
1040lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1041{
45ed1190 1042 struct lpfc_vport **vports;
858c9f6c 1043 LPFC_MBOXQ_t *pmboxq;
0ff10d46 1044 struct lpfc_dmabuf *buf_ptr;
45ed1190 1045 int retval, i;
858c9f6c 1046 struct lpfc_sli *psli = &phba->sli;
0ff10d46 1047 LIST_HEAD(completions);
858c9f6c 1048
45ed1190
JS		 1049 vports = lpfc_create_vport_work_array(phba);
1050 if (vports != NULL)
1051 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1052 lpfc_rcv_seq_check_edtov(vports[i]);
1053 lpfc_destroy_vport_work_array(phba, vports);
1054
858c9f6c 1055 if ((phba->link_state == LPFC_HBA_ERROR) ||
51ef4c26 1056 (phba->pport->load_flag & FC_UNLOADING) ||
858c9f6c
JS		 1057 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1058 return;
1059
1060 spin_lock_irq(&phba->pport->work_port_lock);
858c9f6c
JS		 1061
1062 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1063 jiffies)) {
1064 spin_unlock_irq(&phba->pport->work_port_lock);
1065 if (!phba->hb_outstanding)
1066 mod_timer(&phba->hb_tmofunc,
1067 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1068 else
1069 mod_timer(&phba->hb_tmofunc,
1070 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1071 return;
1072 }
1073 spin_unlock_irq(&phba->pport->work_port_lock);
1074
0ff10d46
JS		 1075 if (phba->elsbuf_cnt &&
1076 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1077 spin_lock_irq(&phba->hbalock);
1078 list_splice_init(&phba->elsbuf, &completions);
1079 phba->elsbuf_cnt = 0;
1080 phba->elsbuf_prev_cnt = 0;
1081 spin_unlock_irq(&phba->hbalock);
1082
1083 while (!list_empty(&completions)) {
1084 list_remove_head(&completions, buf_ptr,
1085 struct lpfc_dmabuf, list);
1086 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1087 kfree(buf_ptr);
1088 }
1089 }
1090 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1091
858c9f6c 1092 /* If there is no heart beat outstanding, issue a heartbeat command */
13815c83
JS		 1093 if (phba->cfg_enable_hba_heartbeat) {
1094 if (!phba->hb_outstanding) {
bc73905a
JS		 1095 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1096 (list_empty(&psli->mboxq))) {
1097 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1098 GFP_KERNEL);
1099 if (!pmboxq) {
1100 mod_timer(&phba->hb_tmofunc,
1101 jiffies +
1102 HZ * LPFC_HB_MBOX_INTERVAL);
1103 return;
1104 }
1105
1106 lpfc_heart_beat(phba, pmboxq);
1107 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1108 pmboxq->vport = phba->pport;
1109 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1110 MBX_NOWAIT);
1111
1112 if (retval != MBX_BUSY &&
1113 retval != MBX_SUCCESS) {
1114 mempool_free(pmboxq,
1115 phba->mbox_mem_pool);
1116 mod_timer(&phba->hb_tmofunc,
1117 jiffies +
1118 HZ * LPFC_HB_MBOX_INTERVAL);
1119 return;
1120 }
1121 phba->skipped_hb = 0;
1122 phba->hb_outstanding = 1;
1123 } else if (time_before_eq(phba->last_completion_time,
1124 phba->skipped_hb)) {
1125 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1126 "2857 Last completion time not "
1127 " updated in %d ms\n",
1128 jiffies_to_msecs(jiffies
1129 - phba->last_completion_time));
1130 } else
1131 phba->skipped_hb = jiffies;
1132
858c9f6c 1133 mod_timer(&phba->hb_tmofunc,
13815c83 1134 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
858c9f6c 1135 return;
13815c83
JS		 1136 } else {
1137 /*
1138 * If heart beat timeout called with hb_outstanding set
dcf2a4e0
JS		 1139 * we need to give the hb mailbox cmd a chance to
1140 * complete or TMO.
13815c83 1141 */
dcf2a4e0
JS		 1142 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1143 "0459 Adapter heartbeat still out"
1144 "standing:last compl time was %d ms.\n",
1145 jiffies_to_msecs(jiffies
1146 - phba->last_completion_time));
1147 mod_timer(&phba->hb_tmofunc,
1148 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
858c9f6c 1149 }
858c9f6c
JS		 1150 }
1151}
1152
e59058c4 1153/**
3621a710 1154 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
e59058c4
JS		 1155 * @phba: pointer to lpfc hba data structure.
1156 *
1157 * This routine is called to bring the HBA offline when HBA hardware error
1158 * other than Port Error 6 has been detected.
1159 **/
09372820
JS		 1160static void
1161lpfc_offline_eratt(struct lpfc_hba *phba)
1162{
1163 struct lpfc_sli *psli = &phba->sli;
1164
1165 spin_lock_irq(&phba->hbalock);
f4b4c68f 1166 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
09372820
JS		 1167 spin_unlock_irq(&phba->hbalock);
1168 lpfc_offline_prep(phba);
1169
1170 lpfc_offline(phba);
1171 lpfc_reset_barrier(phba);
f4b4c68f 1172 spin_lock_irq(&phba->hbalock);
09372820 1173 lpfc_sli_brdreset(phba);
f4b4c68f 1174 spin_unlock_irq(&phba->hbalock);
09372820
JS		 1175 lpfc_hba_down_post(phba);
1176 lpfc_sli_brdready(phba, HS_MBRDY);
1177 lpfc_unblock_mgmt_io(phba);
1178 phba->link_state = LPFC_HBA_ERROR;
1179 return;
1180}
1181
da0436e9
JS		 1182/**
1183 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1184 * @phba: pointer to lpfc hba data structure.
1185 *
1186 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1187 * other than Port Error 6 has been detected.
1188 **/
1189static void
1190lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1191{
1192 lpfc_offline_prep(phba);
1193 lpfc_offline(phba);
1194 lpfc_sli4_brdreset(phba);
1195 lpfc_hba_down_post(phba);
1196 lpfc_sli4_post_status_check(phba);
1197 lpfc_unblock_mgmt_io(phba);
1198 phba->link_state = LPFC_HBA_ERROR;
1199}
1200
a257bf90
JS		 1201/**
1202 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1203 * @phba: pointer to lpfc hba data structure.
1204 *
1205 * This routine is invoked to handle the deferred HBA hardware error
1206 * conditions. This type of error is indicated by HBA by setting ER1
1207 * and another ER bit in the host status register. The driver will
1208 * wait until the ER1 bit clears before handling the error condition.
1209 **/
1210static void
1211lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1212{
1213 uint32_t old_host_status = phba->work_hs;
1214 struct lpfc_sli_ring *pring;
1215 struct lpfc_sli *psli = &phba->sli;
1216
f4b4c68f
JS		 1217 /* If the pci channel is offline, ignore possible errors,
1218 * since we cannot communicate with the pci card anyway.
1219 */
1220 if (pci_channel_offline(phba->pcidev)) {
1221 spin_lock_irq(&phba->hbalock);
1222 phba->hba_flag &= ~DEFER_ERATT;
1223 spin_unlock_irq(&phba->hbalock);
1224 return;
1225 }
1226
a257bf90
JS		 1227 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1228 "0479 Deferred Adapter Hardware Error "
1229 "Data: x%x x%x x%x\n",
1230 phba->work_hs,
1231 phba->work_status[0], phba->work_status[1]);
1232
1233 spin_lock_irq(&phba->hbalock);
f4b4c68f 1234 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
a257bf90
JS		 1235 spin_unlock_irq(&phba->hbalock);
1236
1237
1238 /*
1239 * Firmware stops when it triggred erratt. That could cause the I/Os
1240 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1241 * SCSI layer retry it after re-establishing link.
1242 */
1243 pring = &psli->ring[psli->fcp_ring];
1244 lpfc_sli_abort_iocb_ring(phba, pring);
1245
1246 /*
1247 * There was a firmware error. Take the hba offline and then
1248 * attempt to restart it.
1249 */
1250 lpfc_offline_prep(phba);
1251 lpfc_offline(phba);
1252
1253 /* Wait for the ER1 bit to clear.*/
1254 while (phba->work_hs & HS_FFER1) {
1255 msleep(100);
9940b97b
JS		 1256 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1257 phba->work_hs = UNPLUG_ERR ;
1258 break;
1259 }
a257bf90
JS		 1260 /* If driver is unloading let the worker thread continue */
1261 if (phba->pport->load_flag & FC_UNLOADING) {
1262 phba->work_hs = 0;
1263 break;
1264 }
1265 }
1266
1267 /*
1268 * This is to ptrotect against a race condition in which
1269 * first write to the host attention register clear the
1270 * host status register.
1271 */
1272 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1273 phba->work_hs = old_host_status & ~HS_FFER1;
1274
3772a991 1275 spin_lock_irq(&phba->hbalock);
a257bf90 1276 phba->hba_flag &= ~DEFER_ERATT;
3772a991 1277 spin_unlock_irq(&phba->hbalock);
a257bf90
JS		 1278 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1279 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1280}
1281
3772a991
JS		 1282static void
1283lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1284{
1285 struct lpfc_board_event_header board_event;
1286 struct Scsi_Host *shost;
1287
1288 board_event.event_type = FC_REG_BOARD_EVENT;
1289 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1290 shost = lpfc_shost_from_vport(phba->pport);
1291 fc_host_post_vendor_event(shost, fc_get_event_number(),
1292 sizeof(board_event),
1293 (char *) &board_event,
1294 LPFC_NL_VENDOR_ID);
1295}
1296
e59058c4 1297/**
3772a991 1298 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
e59058c4
JS		 1299 * @phba: pointer to lpfc hba data structure.
1300 *
1301 * This routine is invoked to handle the following HBA hardware error
1302 * conditions:
1303 * 1 - HBA error attention interrupt
1304 * 2 - DMA ring index out of range
1305 * 3 - Mailbox command came back as unknown
1306 **/
3772a991
JS		 1307static void
1308lpfc_handle_eratt_s3(struct lpfc_hba *phba)
dea3101e 1309{
2e0fef85 1310 struct lpfc_vport *vport = phba->pport;
2e0fef85 1311 struct lpfc_sli *psli = &phba->sli;
dea3101e 1312 struct lpfc_sli_ring *pring;
d2873e4c 1313 uint32_t event_data;
57127f15
JS		 1314 unsigned long temperature;
1315 struct temp_event temp_event_data;
92d7f7b0 1316 struct Scsi_Host *shost;
2e0fef85 1317
8d63f375 1318 /* If the pci channel is offline, ignore possible errors,
3772a991
JS		 1319 * since we cannot communicate with the pci card anyway.
1320 */
1321 if (pci_channel_offline(phba->pcidev)) {
1322 spin_lock_irq(&phba->hbalock);
1323 phba->hba_flag &= ~DEFER_ERATT;
1324 spin_unlock_irq(&phba->hbalock);
8d63f375 1325 return;
3772a991
JS		 1326 }
1327
13815c83
JS		 1328 /* If resets are disabled then leave the HBA alone and return */
1329 if (!phba->cfg_enable_hba_reset)
1330 return;
dea3101e 1331
ea2151b4 1332 /* Send an internal error event to mgmt application */
3772a991 1333 lpfc_board_errevt_to_mgmt(phba);
ea2151b4 1334
a257bf90
JS		 1335 if (phba->hba_flag & DEFER_ERATT)
1336 lpfc_handle_deferred_eratt(phba);
1337
dcf2a4e0
JS		 1338 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1339 if (phba->work_hs & HS_FFER6)
1340 /* Re-establishing Link */
1341 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1342 "1301 Re-establishing Link "
1343 "Data: x%x x%x x%x\n",
1344 phba->work_hs, phba->work_status[0],
1345 phba->work_status[1]);
1346 if (phba->work_hs & HS_FFER8)
1347 /* Device Zeroization */
1348 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1349 "2861 Host Authentication device "
1350 "zeroization Data:x%x x%x x%x\n",
1351 phba->work_hs, phba->work_status[0],
1352 phba->work_status[1]);
58da1ffb 1353
92d7f7b0 1354 spin_lock_irq(&phba->hbalock);
f4b4c68f 1355 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
92d7f7b0 1356 spin_unlock_irq(&phba->hbalock);
dea3101e 1357
1358 /*
1359 * Firmware stops when it triggled erratt with HS_FFER6.
1360 * That could cause the I/Os dropped by the firmware.
1361 * Error iocb (I/O) on txcmplq and let the SCSI layer
1362 * retry it after re-establishing link.
1363 */
1364 pring = &psli->ring[psli->fcp_ring];
1365 lpfc_sli_abort_iocb_ring(phba, pring);
1366
dea3101e 1367 /*
1368 * There was a firmware error. Take the hba offline and then
1369 * attempt to restart it.
1370 */
46fa311e 1371 lpfc_offline_prep(phba);
dea3101e 1372 lpfc_offline(phba);
41415862 1373 lpfc_sli_brdrestart(phba);
dea3101e 1374 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
46fa311e 1375 lpfc_unblock_mgmt_io(phba);
dea3101e 1376 return;
1377 }
46fa311e 1378 lpfc_unblock_mgmt_io(phba);
57127f15
JS		 1379 } else if (phba->work_hs & HS_CRIT_TEMP) {
1380 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1381 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1382 temp_event_data.event_code = LPFC_CRIT_TEMP;
1383 temp_event_data.data = (uint32_t)temperature;
1384
1385 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
d7c255b2 1386 "0406 Adapter maximum temperature exceeded "
57127f15
JS		 1387 "(%ld), taking this port offline "
1388 "Data: x%x x%x x%x\n",
1389 temperature, phba->work_hs,
1390 phba->work_status[0], phba->work_status[1]);
1391
1392 shost = lpfc_shost_from_vport(phba->pport);
1393 fc_host_post_vendor_event(shost, fc_get_event_number(),
1394 sizeof(temp_event_data),
1395 (char *) &temp_event_data,
1396 SCSI_NL_VID_TYPE_PCI
1397 | PCI_VENDOR_ID_EMULEX);
1398
7af67051 1399 spin_lock_irq(&phba->hbalock);
7af67051
JS		 1400 phba->over_temp_state = HBA_OVER_TEMP;
1401 spin_unlock_irq(&phba->hbalock);
09372820 1402 lpfc_offline_eratt(phba);
57127f15 1403
dea3101e 1404 } else {
1405 /* The if clause above forces this code path when the status
9399627f
JS		 1406 * failure is a value other than FFER6. Do not call the offline
1407 * twice. This is the adapter hardware error path.
dea3101e 1408 */
1409 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 1410 "0457 Adapter Hardware Error "
dea3101e 1411 "Data: x%x x%x x%x\n",
e8b62011 1412 phba->work_hs,
dea3101e 1413 phba->work_status[0], phba->work_status[1]);
1414
d2873e4c 1415 event_data = FC_REG_DUMP_EVENT;
92d7f7b0 1416 shost = lpfc_shost_from_vport(vport);
2e0fef85 1417 fc_host_post_vendor_event(shost, fc_get_event_number(),
d2873e4c
JS		 1418 sizeof(event_data), (char *) &event_data,
1419 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1420
09372820 1421 lpfc_offline_eratt(phba);
dea3101e 1422 }
9399627f 1423 return;
dea3101e 1424}
1425
da0436e9
JS		 1426/**
1427 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1428 * @phba: pointer to lpfc hba data structure.
1429 *
1430 * This routine is invoked to handle the SLI4 HBA hardware error attention
1431 * conditions.
1432 **/
1433static void
1434lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1435{
1436 struct lpfc_vport *vport = phba->pport;
1437 uint32_t event_data;
1438 struct Scsi_Host *shost;
2fcee4bf
JS		 1439 uint32_t if_type;
1440 struct lpfc_register portstat_reg;
73d91e50 1441 int rc;
da0436e9
JS		 1442
1443 /* If the pci channel is offline, ignore possible errors, since
1444 * we cannot communicate with the pci card anyway.
1445 */
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;
1451
1452 /* Send an internal error event to mgmt application */
1453 lpfc_board_errevt_to_mgmt(phba);
1454
1455 /* For now, the actual action for SLI4 device handling is not
1456 * specified yet, just treated it as adaptor hardware failure
1457 */
da0436e9
JS		 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);
1463
2fcee4bf
JS		 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);
1472
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;
1483 }
73d91e50
JS		 1484 /*
1485 * On error status condition, driver need to wait for port
1486 * ready before performing reset.
1487 */
1488 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1489 if (!rc) {
079b5c91 1490 /* need reset: attempt for port recovery */
2fcee4bf
JS		 1491 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1492 "2887 Port Error: Attempting "
1493 "Port Recovery\n");
079b5c91
JS		 1494 lpfc_offline_prep(phba);
1495 lpfc_offline(phba);
1496 lpfc_sli_brdrestart(phba);
1497 if (lpfc_online(phba) == 0) {
1498 lpfc_unblock_mgmt_io(phba);
1499 return;
1500 }
1501 /* fall through for not able to recover */
2fcee4bf
JS		 1502 }
1503 lpfc_sli4_offline_eratt(phba);
1504 break;
1505 case LPFC_SLI_INTF_IF_TYPE_1:
1506 default:
1507 break;
1508 }
da0436e9
JS		 1509}
1510
1511/**
1512 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1513 * @phba: pointer to lpfc HBA data structure.
1514 *
1515 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1516 * routine from the API jump table function pointer from the lpfc_hba struct.
1517 *
1518 * Return codes
af901ca1 1519 * 0 - success.
da0436e9
JS		 1520 * Any other value - error.
1521 **/
1522void
1523lpfc_handle_eratt(struct lpfc_hba *phba)
1524{
1525 (*phba->lpfc_handle_eratt)(phba);
1526}
1527
e59058c4 1528/**
3621a710 1529 * lpfc_handle_latt - The HBA link event handler
e59058c4
JS		 1530 * @phba: pointer to lpfc hba data structure.
1531 *
1532 * This routine is invoked from the worker thread to handle a HBA host
1533 * attention link event.
1534 **/
dea3101e 1535void
2e0fef85 1536lpfc_handle_latt(struct lpfc_hba *phba)
dea3101e 1537{
2e0fef85
JS		 1538 struct lpfc_vport *vport = phba->pport;
1539 struct lpfc_sli *psli = &phba->sli;
dea3101e 1540 LPFC_MBOXQ_t *pmb;
1541 volatile uint32_t control;
1542 struct lpfc_dmabuf *mp;
09372820 1543 int rc = 0;
dea3101e 1544
1545 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
09372820
JS		 1546 if (!pmb) {
1547 rc = 1;
dea3101e 1548 goto lpfc_handle_latt_err_exit;
09372820 1549 }
dea3101e 1550
1551 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
09372820
JS		 1552 if (!mp) {
1553 rc = 2;
dea3101e 1554 goto lpfc_handle_latt_free_pmb;
09372820 1555 }
dea3101e 1556
1557 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
09372820
JS		 1558 if (!mp->virt) {
1559 rc = 3;
dea3101e 1560 goto lpfc_handle_latt_free_mp;
09372820 1561 }
dea3101e 1562
6281bfe0 1563 /* Cleanup any outstanding ELS commands */
549e55cd 1564 lpfc_els_flush_all_cmd(phba);
dea3101e 1565
1566 psli->slistat.link_event++;
76a95d75
JS		 1567 lpfc_read_topology(phba, pmb, mp);
1568 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2e0fef85 1569 pmb->vport = vport;
0d2b6b83
JS		 1570 /* Block ELS IOCBs until we have processed this mbox command */
1571 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
0b727fea 1572 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
09372820
JS		 1573 if (rc == MBX_NOT_FINISHED) {
1574 rc = 4;
14691150 1575 goto lpfc_handle_latt_free_mbuf;
09372820 1576 }
dea3101e 1577
1578 /* Clear Link Attention in HA REG */
2e0fef85 1579 spin_lock_irq(&phba->hbalock);
dea3101e 1580 writel(HA_LATT, phba->HAregaddr);
1581 readl(phba->HAregaddr); /* flush */
2e0fef85 1582 spin_unlock_irq(&phba->hbalock);
dea3101e 1583
1584 return;
1585
14691150 1586lpfc_handle_latt_free_mbuf:
0d2b6b83 1587 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
14691150 1588 lpfc_mbuf_free(phba, mp->virt, mp->phys);
dea3101e 1589lpfc_handle_latt_free_mp:
1590 kfree(mp);
1591lpfc_handle_latt_free_pmb:
1dcb58e5 1592 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 1593lpfc_handle_latt_err_exit:
1594 /* Enable Link attention interrupts */
2e0fef85 1595 spin_lock_irq(&phba->hbalock);
dea3101e 1596 psli->sli_flag |= LPFC_PROCESS_LA;
1597 control = readl(phba->HCregaddr);
1598 control |= HC_LAINT_ENA;
1599 writel(control, phba->HCregaddr);
1600 readl(phba->HCregaddr); /* flush */
1601
1602 /* Clear Link Attention in HA REG */
1603 writel(HA_LATT, phba->HAregaddr);
1604 readl(phba->HAregaddr); /* flush */
2e0fef85 1605 spin_unlock_irq(&phba->hbalock);
dea3101e 1606 lpfc_linkdown(phba);
2e0fef85 1607 phba->link_state = LPFC_HBA_ERROR;
dea3101e 1608
09372820
JS		 1609 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1610 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
dea3101e 1611
1612 return;
1613}
1614
e59058c4 1615/**
3621a710 1616 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
e59058c4
JS		 1617 * @phba: pointer to lpfc hba data structure.
1618 * @vpd: pointer to the vital product data.
1619 * @len: length of the vital product data in bytes.
1620 *
1621 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1622 * an array of characters. In this routine, the ModelName, ProgramType, and
1623 * ModelDesc, etc. fields of the phba data structure will be populated.
1624 *
1625 * Return codes
1626 * 0 - pointer to the VPD passed in is NULL
1627 * 1 - success
1628 **/
3772a991 1629int
2e0fef85 1630lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
dea3101e 1631{
1632 uint8_t lenlo, lenhi;
07da60c1 1633 int Length;
dea3101e 1634 int i, j;
1635 int finished = 0;
1636 int index = 0;
1637
1638 if (!vpd)
1639 return 0;
1640
1641 /* Vital Product */
ed957684 1642 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011 1643 "0455 Vital Product Data: x%x x%x x%x x%x\n",
dea3101e 1644 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1645 (uint32_t) vpd[3]);
74b72a59 1646 while (!finished && (index < (len - 4))) {
dea3101e 1647 switch (vpd[index]) {
1648 case 0x82:
74b72a59 1649 case 0x91:
dea3101e 1650 index += 1;
1651 lenlo = vpd[index];
1652 index += 1;
1653 lenhi = vpd[index];
1654 index += 1;
1655 i = ((((unsigned short)lenhi) << 8) + lenlo);
1656 index += i;
1657 break;
1658 case 0x90:
1659 index += 1;
1660 lenlo = vpd[index];
1661 index += 1;
1662 lenhi = vpd[index];
1663 index += 1;
1664 Length = ((((unsigned short)lenhi) << 8) + lenlo);
74b72a59
JW		 1665 if (Length > len - index)
1666 Length = len - index;
dea3101e 1667 while (Length > 0) {
1668 /* Look for Serial Number */
1669 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1670 index += 2;
1671 i = vpd[index];
1672 index += 1;
1673 j = 0;
1674 Length -= (3+i);
1675 while(i--) {
1676 phba->SerialNumber[j++] = vpd[index++];
1677 if (j == 31)
1678 break;
1679 }
1680 phba->SerialNumber[j] = 0;
1681 continue;
1682 }
1683 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1684 phba->vpd_flag |= VPD_MODEL_DESC;
1685 index += 2;
1686 i = vpd[index];
1687 index += 1;
1688 j = 0;
1689 Length -= (3+i);
1690 while(i--) {
1691 phba->ModelDesc[j++] = vpd[index++];
1692 if (j == 255)
1693 break;
1694 }
1695 phba->ModelDesc[j] = 0;
1696 continue;
1697 }
1698 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1699 phba->vpd_flag |= VPD_MODEL_NAME;
1700 index += 2;
1701 i = vpd[index];
1702 index += 1;
1703 j = 0;
1704 Length -= (3+i);
1705 while(i--) {
1706 phba->ModelName[j++] = vpd[index++];
1707 if (j == 79)
1708 break;
1709 }
1710 phba->ModelName[j] = 0;
1711 continue;
1712 }
1713 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1714 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1715 index += 2;
1716 i = vpd[index];
1717 index += 1;
1718 j = 0;
1719 Length -= (3+i);
1720 while(i--) {
1721 phba->ProgramType[j++] = vpd[index++];
1722 if (j == 255)
1723 break;
1724 }
1725 phba->ProgramType[j] = 0;
1726 continue;
1727 }
1728 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1729 phba->vpd_flag |= VPD_PORT;
1730 index += 2;
1731 i = vpd[index];
1732 index += 1;
1733 j = 0;
1734 Length -= (3+i);
1735 while(i--) {
1736 phba->Port[j++] = vpd[index++];
1737 if (j == 19)
1738 break;
1739 }
1740 phba->Port[j] = 0;
1741 continue;
1742 }
1743 else {
1744 index += 2;
1745 i = vpd[index];
1746 index += 1;
1747 index += i;
1748 Length -= (3 + i);
1749 }
1750 }
1751 finished = 0;
1752 break;
1753 case 0x78:
1754 finished = 1;
1755 break;
1756 default:
1757 index ++;
1758 break;
1759 }
74b72a59 1760 }
dea3101e 1761
1762 return(1);
1763}
1764
e59058c4 1765/**
3621a710 1766 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
e59058c4
JS		 1767 * @phba: pointer to lpfc hba data structure.
1768 * @mdp: pointer to the data structure to hold the derived model name.
1769 * @descp: pointer to the data structure to hold the derived description.
1770 *
1771 * This routine retrieves HBA's description based on its registered PCI device
1772 * ID. The @descp passed into this function points to an array of 256 chars. It
1773 * shall be returned with the model name, maximum speed, and the host bus type.
1774 * The @mdp passed into this function points to an array of 80 chars. When the
1775 * function returns, the @mdp will be filled with the model name.
1776 **/
dea3101e 1777static void
2e0fef85 1778lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
dea3101e 1779{
1780 lpfc_vpd_t *vp;
fefcb2b6 1781 uint16_t dev_id = phba->pcidev->device;
74b72a59 1782 int max_speed;
84774a4d 1783 int GE = 0;
da0436e9 1784 int oneConnect = 0; /* default is not a oneConnect */
74b72a59 1785 struct {
a747c9ce
JS		 1786 char *name;
1787 char *bus;
1788 char *function;
1789 } m = {"<Unknown>", "", ""};
74b72a59
JW		 1790
1791 if (mdp && mdp[0] != '\0'
1792 && descp && descp[0] != '\0')
1793 return;
1794
c0c11512
JS		 1795 if (phba->lmt & LMT_16Gb)
1796 max_speed = 16;
1797 else if (phba->lmt & LMT_10Gb)
74b72a59
JW		 1798 max_speed = 10;
1799 else if (phba->lmt & LMT_8Gb)
1800 max_speed = 8;
1801 else if (phba->lmt & LMT_4Gb)
1802 max_speed = 4;
1803 else if (phba->lmt & LMT_2Gb)
1804 max_speed = 2;
1805 else
1806 max_speed = 1;
dea3101e 1807
1808 vp = &phba->vpd;
dea3101e 1809
e4adb204 1810 switch (dev_id) {
06325e74 1811 case PCI_DEVICE_ID_FIREFLY:
a747c9ce 1812 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
06325e74 1813 break;
dea3101e 1814 case PCI_DEVICE_ID_SUPERFLY:
1815 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
a747c9ce
JS		 1816 m = (typeof(m)){"LP7000", "PCI",
1817 "Fibre Channel Adapter"};
dea3101e 1818 else
a747c9ce
JS		 1819 m = (typeof(m)){"LP7000E", "PCI",
1820 "Fibre Channel Adapter"};
dea3101e 1821 break;
1822 case PCI_DEVICE_ID_DRAGONFLY:
a747c9ce
JS		 1823 m = (typeof(m)){"LP8000", "PCI",
1824 "Fibre Channel Adapter"};
dea3101e 1825 break;
1826 case PCI_DEVICE_ID_CENTAUR:
1827 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
a747c9ce
JS		 1828 m = (typeof(m)){"LP9002", "PCI",
1829 "Fibre Channel Adapter"};
dea3101e 1830 else
a747c9ce
JS		 1831 m = (typeof(m)){"LP9000", "PCI",
1832 "Fibre Channel Adapter"};
dea3101e 1833 break;
1834 case PCI_DEVICE_ID_RFLY:
a747c9ce
JS		 1835 m = (typeof(m)){"LP952", "PCI",
1836 "Fibre Channel Adapter"};
dea3101e 1837 break;
1838 case PCI_DEVICE_ID_PEGASUS:
a747c9ce
JS		 1839 m = (typeof(m)){"LP9802", "PCI-X",
1840 "Fibre Channel Adapter"};
dea3101e 1841 break;
1842 case PCI_DEVICE_ID_THOR:
a747c9ce
JS		 1843 m = (typeof(m)){"LP10000", "PCI-X",
1844 "Fibre Channel Adapter"};
dea3101e 1845 break;
1846 case PCI_DEVICE_ID_VIPER:
a747c9ce
JS		 1847 m = (typeof(m)){"LPX1000", "PCI-X",
1848 "Fibre Channel Adapter"};
dea3101e 1849 break;
1850 case PCI_DEVICE_ID_PFLY:
a747c9ce
JS		 1851 m = (typeof(m)){"LP982", "PCI-X",
1852 "Fibre Channel Adapter"};
dea3101e 1853 break;
1854 case PCI_DEVICE_ID_TFLY:
a747c9ce
JS		 1855 m = (typeof(m)){"LP1050", "PCI-X",
1856 "Fibre Channel Adapter"};
dea3101e 1857 break;
1858 case PCI_DEVICE_ID_HELIOS:
a747c9ce
JS		 1859 m = (typeof(m)){"LP11000", "PCI-X2",
1860 "Fibre Channel Adapter"};
dea3101e 1861 break;
e4adb204 1862 case PCI_DEVICE_ID_HELIOS_SCSP:
a747c9ce
JS		 1863 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1864 "Fibre Channel Adapter"};
e4adb204
JSEC		 1865 break;
1866 case PCI_DEVICE_ID_HELIOS_DCSP:
a747c9ce
JS		 1867 m = (typeof(m)){"LP11002-SP", "PCI-X2",
1868 "Fibre Channel Adapter"};
e4adb204
JSEC		 1869 break;
1870 case PCI_DEVICE_ID_NEPTUNE:
a747c9ce 1871 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 1872 break;
1873 case PCI_DEVICE_ID_NEPTUNE_SCSP:
a747c9ce 1874 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 1875 break;
1876 case PCI_DEVICE_ID_NEPTUNE_DCSP:
a747c9ce 1877 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
e4adb204 1878 break;
dea3101e 1879 case PCI_DEVICE_ID_BMID:
a747c9ce 1880 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
dea3101e 1881 break;
1882 case PCI_DEVICE_ID_BSMB:
a747c9ce 1883 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
dea3101e 1884 break;
1885 case PCI_DEVICE_ID_ZEPHYR:
a747c9ce 1886 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
dea3101e 1887 break;
e4adb204 1888 case PCI_DEVICE_ID_ZEPHYR_SCSP:
a747c9ce 1889 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 1890 break;
1891 case PCI_DEVICE_ID_ZEPHYR_DCSP:
a747c9ce 1892 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
a257bf90 1893 GE = 1;
e4adb204 1894 break;
dea3101e 1895 case PCI_DEVICE_ID_ZMID:
a747c9ce 1896 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
dea3101e 1897 break;
1898 case PCI_DEVICE_ID_ZSMB:
a747c9ce 1899 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
dea3101e 1900 break;
1901 case PCI_DEVICE_ID_LP101:
a747c9ce 1902 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
dea3101e 1903 break;
1904 case PCI_DEVICE_ID_LP10000S:
a747c9ce 1905 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
06325e74 1906 break;
e4adb204 1907 case PCI_DEVICE_ID_LP11000S:
a747c9ce 1908 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
18a3b596 1909 break;
e4adb204 1910 case PCI_DEVICE_ID_LPE11000S:
a747c9ce 1911 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
5cc36b3c 1912 break;
b87eab38 1913 case PCI_DEVICE_ID_SAT:
a747c9ce 1914 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1915 break;
1916 case PCI_DEVICE_ID_SAT_MID:
a747c9ce 1917 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1918 break;
1919 case PCI_DEVICE_ID_SAT_SMB:
a747c9ce 1920 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1921 break;
1922 case PCI_DEVICE_ID_SAT_DCSP:
a747c9ce 1923 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1924 break;
1925 case PCI_DEVICE_ID_SAT_SCSP:
a747c9ce 1926 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1927 break;
1928 case PCI_DEVICE_ID_SAT_S:
a747c9ce 1929 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
b87eab38 1930 break;
84774a4d 1931 case PCI_DEVICE_ID_HORNET:
a747c9ce 1932 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
84774a4d
JS		 1933 GE = 1;
1934 break;
1935 case PCI_DEVICE_ID_PROTEUS_VF:
a747c9ce
JS		 1936 m = (typeof(m)){"LPev12000", "PCIe IOV",
1937 "Fibre Channel Adapter"};
84774a4d
JS		 1938 break;
1939 case PCI_DEVICE_ID_PROTEUS_PF:
a747c9ce
JS		 1940 m = (typeof(m)){"LPev12000", "PCIe IOV",
1941 "Fibre Channel Adapter"};
84774a4d
JS		 1942 break;
1943 case PCI_DEVICE_ID_PROTEUS_S:
a747c9ce
JS		 1944 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1945 "Fibre Channel Adapter"};
84774a4d 1946 break;
da0436e9
JS		 1947 case PCI_DEVICE_ID_TIGERSHARK:
1948 oneConnect = 1;
a747c9ce 1949 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
da0436e9 1950 break;
a747c9ce 1951 case PCI_DEVICE_ID_TOMCAT:
6669f9bb 1952 oneConnect = 1;
a747c9ce
JS		 1953 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
1954 break;
1955 case PCI_DEVICE_ID_FALCON:
1956 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
1957 "EmulexSecure Fibre"};
6669f9bb 1958 break;
98fc5dd9
JS		 1959 case PCI_DEVICE_ID_BALIUS:
1960 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
1961 "Fibre Channel Adapter"};
1962 break;
085c647c 1963 case PCI_DEVICE_ID_LANCER_FC:
c0c11512
JS		 1964 case PCI_DEVICE_ID_LANCER_FC_VF:
1965 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
085c647c
JS		 1966 break;
1967 case PCI_DEVICE_ID_LANCER_FCOE:
c0c11512 1968 case PCI_DEVICE_ID_LANCER_FCOE_VF:
085c647c 1969 oneConnect = 1;
079b5c91 1970 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
085c647c 1971 break;
5cc36b3c 1972 default:
a747c9ce 1973 m = (typeof(m)){"Unknown", "", ""};
e4adb204 1974 break;
dea3101e 1975 }
74b72a59
JW		 1976
1977 if (mdp && mdp[0] == '\0')
1978 snprintf(mdp, 79,"%s", m.name);
c0c11512
JS		 1979 /*
1980 * oneConnect hba requires special processing, they are all initiators
da0436e9
JS		 1981 * and we put the port number on the end
1982 */
1983 if (descp && descp[0] == '\0') {
1984 if (oneConnect)
1985 snprintf(descp, 255,
a747c9ce
JS		 1986 "Emulex OneConnect %s, %s Initiator, Port %s",
1987 m.name, m.function,
da0436e9
JS		 1988 phba->Port);
1989 else
1990 snprintf(descp, 255,
1991 "Emulex %s %d%s %s %s",
a747c9ce
JS		 1992 m.name, max_speed, (GE) ? "GE" : "Gb",
1993 m.bus, m.function);
da0436e9 1994 }
dea3101e 1995}
1996
e59058c4 1997/**
3621a710 1998 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
e59058c4
JS		 1999 * @phba: pointer to lpfc hba data structure.
2000 * @pring: pointer to a IOCB ring.
2001 * @cnt: the number of IOCBs to be posted to the IOCB ring.
2002 *
2003 * This routine posts a given number of IOCBs with the associated DMA buffer
2004 * descriptors specified by the cnt argument to the given IOCB ring.
2005 *
2006 * Return codes
2007 * The number of IOCBs NOT able to be posted to the IOCB ring.
2008 **/
dea3101e 2009int
495a714c 2010lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
dea3101e 2011{
2012 IOCB_t *icmd;
0bd4ca25 2013 struct lpfc_iocbq *iocb;
dea3101e 2014 struct lpfc_dmabuf *mp1, *mp2;
2015
2016 cnt += pring->missbufcnt;
2017
2018 /* While there are buffers to post */
2019 while (cnt > 0) {
2020 /* Allocate buffer for command iocb */
0bd4ca25 2021 iocb = lpfc_sli_get_iocbq(phba);
dea3101e 2022 if (iocb == NULL) {
2023 pring->missbufcnt = cnt;
2024 return cnt;
2025 }
dea3101e 2026 icmd = &iocb->iocb;
2027
2028 /* 2 buffers can be posted per command */
2029 /* Allocate buffer to post */
2030 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2031 if (mp1)
98c9ea5c
JS		 2032 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2033 if (!mp1 || !mp1->virt) {
c9475cb0 2034 kfree(mp1);
604a3e30 2035 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2036 pring->missbufcnt = cnt;
2037 return cnt;
2038 }
2039
2040 INIT_LIST_HEAD(&mp1->list);
2041 /* Allocate buffer to post */
2042 if (cnt > 1) {
2043 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2044 if (mp2)
2045 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2046 &mp2->phys);
98c9ea5c 2047 if (!mp2 || !mp2->virt) {
c9475cb0 2048 kfree(mp2);
dea3101e 2049 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2050 kfree(mp1);
604a3e30 2051 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2052 pring->missbufcnt = cnt;
2053 return cnt;
2054 }
2055
2056 INIT_LIST_HEAD(&mp2->list);
2057 } else {
2058 mp2 = NULL;
2059 }
2060
2061 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2062 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2063 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2064 icmd->ulpBdeCount = 1;
2065 cnt--;
2066 if (mp2) {
2067 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2068 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2069 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2070 cnt--;
2071 icmd->ulpBdeCount = 2;
2072 }
2073
2074 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2075 icmd->ulpLe = 1;
2076
3772a991
JS		 2077 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2078 IOCB_ERROR) {
dea3101e 2079 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2080 kfree(mp1);
2081 cnt++;
2082 if (mp2) {
2083 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2084 kfree(mp2);
2085 cnt++;
2086 }
604a3e30 2087 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2088 pring->missbufcnt = cnt;
dea3101e 2089 return cnt;
2090 }
dea3101e 2091 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
92d7f7b0 2092 if (mp2)
dea3101e 2093 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
dea3101e 2094 }
2095 pring->missbufcnt = 0;
2096 return 0;
2097}
2098
e59058c4 2099/**
3621a710 2100 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
e59058c4
JS		 2101 * @phba: pointer to lpfc hba data structure.
2102 *
2103 * This routine posts initial receive IOCB buffers to the ELS ring. The
2104 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2105 * set to 64 IOCBs.
2106 *
2107 * Return codes
2108 * 0 - success (currently always success)
2109 **/
dea3101e 2110static int
2e0fef85 2111lpfc_post_rcv_buf(struct lpfc_hba *phba)
dea3101e 2112{
2113 struct lpfc_sli *psli = &phba->sli;
2114
2115 /* Ring 0, ELS / CT buffers */
495a714c 2116 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
dea3101e 2117 /* Ring 2 - FCP no buffers needed */
2118
2119 return 0;
2120}
2121
2122#define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2123
e59058c4 2124/**
3621a710 2125 * lpfc_sha_init - Set up initial array of hash table entries
e59058c4
JS		 2126 * @HashResultPointer: pointer to an array as hash table.
2127 *
2128 * This routine sets up the initial values to the array of hash table entries
2129 * for the LC HBAs.
2130 **/
dea3101e 2131static void
2132lpfc_sha_init(uint32_t * HashResultPointer)
2133{
2134 HashResultPointer[0] = 0x67452301;
2135 HashResultPointer[1] = 0xEFCDAB89;
2136 HashResultPointer[2] = 0x98BADCFE;
2137 HashResultPointer[3] = 0x10325476;
2138 HashResultPointer[4] = 0xC3D2E1F0;
2139}
2140
e59058c4 2141/**
3621a710 2142 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
e59058c4
JS		 2143 * @HashResultPointer: pointer to an initial/result hash table.
2144 * @HashWorkingPointer: pointer to an working hash table.
2145 *
2146 * This routine iterates an initial hash table pointed by @HashResultPointer
2147 * with the values from the working hash table pointeed by @HashWorkingPointer.
2148 * The results are putting back to the initial hash table, returned through
2149 * the @HashResultPointer as the result hash table.
2150 **/
dea3101e 2151static void
2152lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2153{
2154 int t;
2155 uint32_t TEMP;
2156 uint32_t A, B, C, D, E;
2157 t = 16;
2158 do {
2159 HashWorkingPointer[t] =
2160 S(1,
2161 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2162 8] ^
2163 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2164 } while (++t <= 79);
2165 t = 0;
2166 A = HashResultPointer[0];
2167 B = HashResultPointer[1];
2168 C = HashResultPointer[2];
2169 D = HashResultPointer[3];
2170 E = HashResultPointer[4];
2171
2172 do {
2173 if (t < 20) {
2174 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2175 } else if (t < 40) {
2176 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2177 } else if (t < 60) {
2178 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2179 } else {
2180 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2181 }
2182 TEMP += S(5, A) + E + HashWorkingPointer[t];
2183 E = D;
2184 D = C;
2185 C = S(30, B);
2186 B = A;
2187 A = TEMP;
2188 } while (++t <= 79);
2189
2190 HashResultPointer[0] += A;
2191 HashResultPointer[1] += B;
2192 HashResultPointer[2] += C;
2193 HashResultPointer[3] += D;
2194 HashResultPointer[4] += E;
2195
2196}
2197
e59058c4 2198/**
3621a710 2199 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
e59058c4
JS		 2200 * @RandomChallenge: pointer to the entry of host challenge random number array.
2201 * @HashWorking: pointer to the entry of the working hash array.
2202 *
2203 * This routine calculates the working hash array referred by @HashWorking
2204 * from the challenge random numbers associated with the host, referred by
2205 * @RandomChallenge. The result is put into the entry of the working hash
2206 * array and returned by reference through @HashWorking.
2207 **/
dea3101e 2208static void
2209lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2210{
2211 *HashWorking = (*RandomChallenge ^ *HashWorking);
2212}
2213
e59058c4 2214/**
3621a710 2215 * lpfc_hba_init - Perform special handling for LC HBA initialization
e59058c4
JS		 2216 * @phba: pointer to lpfc hba data structure.
2217 * @hbainit: pointer to an array of unsigned 32-bit integers.
2218 *
2219 * This routine performs the special handling for LC HBA initialization.
2220 **/
dea3101e 2221void
2222lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2223{
2224 int t;
2225 uint32_t *HashWorking;
2e0fef85 2226 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
dea3101e 2227
bbfbbbc1 2228 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
dea3101e 2229 if (!HashWorking)
2230 return;
2231
dea3101e 2232 HashWorking[0] = HashWorking[78] = *pwwnn++;
2233 HashWorking[1] = HashWorking[79] = *pwwnn;
2234
2235 for (t = 0; t < 7; t++)
2236 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2237
2238 lpfc_sha_init(hbainit);
2239 lpfc_sha_iterate(hbainit, HashWorking);
2240 kfree(HashWorking);
2241}
2242
e59058c4 2243/**
3621a710 2244 * lpfc_cleanup - Performs vport cleanups before deleting a vport
e59058c4
JS		 2245 * @vport: pointer to a virtual N_Port data structure.
2246 *
2247 * This routine performs the necessary cleanups before deleting the @vport.
2248 * It invokes the discovery state machine to perform necessary state
2249 * transitions and to release the ndlps associated with the @vport. Note,
2250 * the physical port is treated as @vport 0.
2251 **/
87af33fe 2252void
2e0fef85 2253lpfc_cleanup(struct lpfc_vport *vport)
dea3101e 2254{
87af33fe 2255 struct lpfc_hba *phba = vport->phba;
dea3101e 2256 struct lpfc_nodelist *ndlp, *next_ndlp;
a8adb832 2257 int i = 0;
dea3101e 2258
87af33fe
JS		 2259 if (phba->link_state > LPFC_LINK_DOWN)
2260 lpfc_port_link_failure(vport);
2261
2262 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
e47c9093
JS		 2263 if (!NLP_CHK_NODE_ACT(ndlp)) {
2264 ndlp = lpfc_enable_node(vport, ndlp,
2265 NLP_STE_UNUSED_NODE);
2266 if (!ndlp)
2267 continue;
2268 spin_lock_irq(&phba->ndlp_lock);
2269 NLP_SET_FREE_REQ(ndlp);
2270 spin_unlock_irq(&phba->ndlp_lock);
2271 /* Trigger the release of the ndlp memory */
2272 lpfc_nlp_put(ndlp);
2273 continue;
2274 }
2275 spin_lock_irq(&phba->ndlp_lock);
2276 if (NLP_CHK_FREE_REQ(ndlp)) {
2277 /* The ndlp should not be in memory free mode already */
2278 spin_unlock_irq(&phba->ndlp_lock);
2279 continue;
2280 } else
2281 /* Indicate request for freeing ndlp memory */
2282 NLP_SET_FREE_REQ(ndlp);
2283 spin_unlock_irq(&phba->ndlp_lock);
2284
58da1ffb
JS		 2285 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2286 ndlp->nlp_DID == Fabric_DID) {
2287 /* Just free up ndlp with Fabric_DID for vports */
2288 lpfc_nlp_put(ndlp);
2289 continue;
2290 }
2291
87af33fe
JS		 2292 if (ndlp->nlp_type & NLP_FABRIC)
2293 lpfc_disc_state_machine(vport, ndlp, NULL,
2294 NLP_EVT_DEVICE_RECOVERY);
e47c9093 2295
87af33fe
JS		 2296 lpfc_disc_state_machine(vport, ndlp, NULL,
2297 NLP_EVT_DEVICE_RM);
495a714c 2298
87af33fe
JS		 2299 }
2300
a8adb832
JS		 2301 /* At this point, ALL ndlp's should be gone
2302 * because of the previous NLP_EVT_DEVICE_RM.
2303 * Lets wait for this to happen, if needed.
2304 */
87af33fe 2305 while (!list_empty(&vport->fc_nodes)) {
a8adb832 2306 if (i++ > 3000) {
87af33fe 2307 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
a8adb832 2308 "0233 Nodelist not empty\n");
e47c9093
JS		 2309 list_for_each_entry_safe(ndlp, next_ndlp,
2310 &vport->fc_nodes, nlp_listp) {
2311 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2312 LOG_NODE,
d7c255b2 2313 "0282 did:x%x ndlp:x%p "
e47c9093
JS		 2314 "usgmap:x%x refcnt:%d\n",
2315 ndlp->nlp_DID, (void *)ndlp,
2316 ndlp->nlp_usg_map,
2317 atomic_read(
2318 &ndlp->kref.refcount));
2319 }
a8adb832 2320 break;
87af33fe 2321 }
a8adb832
JS		 2322
2323 /* Wait for any activity on ndlps to settle */
2324 msleep(10);
87af33fe 2325 }
1151e3ec 2326 lpfc_cleanup_vports_rrqs(vport, NULL);
dea3101e 2327}
2328
e59058c4 2329/**
3621a710 2330 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
e59058c4
JS		 2331 * @vport: pointer to a virtual N_Port data structure.
2332 *
2333 * This routine stops all the timers associated with a @vport. This function
2334 * is invoked before disabling or deleting a @vport. Note that the physical
2335 * port is treated as @vport 0.
2336 **/
92d7f7b0
JS		 2337void
2338lpfc_stop_vport_timers(struct lpfc_vport *vport)
dea3101e 2339{
92d7f7b0
JS		 2340 del_timer_sync(&vport->els_tmofunc);
2341 del_timer_sync(&vport->fc_fdmitmo);
92494144 2342 del_timer_sync(&vport->delayed_disc_tmo);
92d7f7b0
JS		 2343 lpfc_can_disctmo(vport);
2344 return;
dea3101e 2345}
2346
ecfd03c6
JS		 2347/**
2348 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2349 * @phba: pointer to lpfc hba data structure.
2350 *
2351 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2352 * caller of this routine should already hold the host lock.
2353 **/
2354void
2355__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2356{
5ac6b303
JS		 2357 /* Clear pending FCF rediscovery wait flag */
2358 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2359
ecfd03c6
JS		 2360 /* Now, try to stop the timer */
2361 del_timer(&phba->fcf.redisc_wait);
2362}
2363
2364/**
2365 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2366 * @phba: pointer to lpfc hba data structure.
2367 *
2368 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2369 * checks whether the FCF rediscovery wait timer is pending with the host
2370 * lock held before proceeding with disabling the timer and clearing the
2371 * wait timer pendig flag.
2372 **/
2373void
2374lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2375{
2376 spin_lock_irq(&phba->hbalock);
2377 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2378 /* FCF rediscovery timer already fired or stopped */
2379 spin_unlock_irq(&phba->hbalock);
2380 return;
2381 }
2382 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
5ac6b303
JS		 2383 /* Clear failover in progress flags */
2384 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
ecfd03c6
JS		 2385 spin_unlock_irq(&phba->hbalock);
2386}
2387
e59058c4 2388/**
3772a991 2389 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
e59058c4
JS		 2390 * @phba: pointer to lpfc hba data structure.
2391 *
2392 * This routine stops all the timers associated with a HBA. This function is
2393 * invoked before either putting a HBA offline or unloading the driver.
2394 **/
3772a991
JS		 2395void
2396lpfc_stop_hba_timers(struct lpfc_hba *phba)
dea3101e 2397{
51ef4c26 2398 lpfc_stop_vport_timers(phba->pport);
2e0fef85 2399 del_timer_sync(&phba->sli.mbox_tmo);
92d7f7b0 2400 del_timer_sync(&phba->fabric_block_timer);
9399627f 2401 del_timer_sync(&phba->eratt_poll);
3772a991 2402 del_timer_sync(&phba->hb_tmofunc);
1151e3ec
JS		 2403 if (phba->sli_rev == LPFC_SLI_REV4) {
2404 del_timer_sync(&phba->rrq_tmr);
2405 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2406 }
3772a991
JS		 2407 phba->hb_outstanding = 0;
2408
2409 switch (phba->pci_dev_grp) {
2410 case LPFC_PCI_DEV_LP:
2411 /* Stop any LightPulse device specific driver timers */
2412 del_timer_sync(&phba->fcp_poll_timer);
2413 break;
2414 case LPFC_PCI_DEV_OC:
2415 /* Stop any OneConnect device sepcific driver timers */
ecfd03c6 2416 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3772a991
JS		 2417 break;
2418 default:
2419 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2420 "0297 Invalid device group (x%x)\n",
2421 phba->pci_dev_grp);
2422 break;
2423 }
2e0fef85 2424 return;
dea3101e 2425}
2426
e59058c4 2427/**
3621a710 2428 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
e59058c4
JS		 2429 * @phba: pointer to lpfc hba data structure.
2430 *
2431 * This routine marks a HBA's management interface as blocked. Once the HBA's
2432 * management interface is marked as blocked, all the user space access to
2433 * the HBA, whether they are from sysfs interface or libdfc interface will
2434 * all be blocked. The HBA is set to block the management interface when the
2435 * driver prepares the HBA interface for online or offline.
2436 **/
a6ababd2
AB		 2437static void
2438lpfc_block_mgmt_io(struct lpfc_hba * phba)
2439{
2440 unsigned long iflag;
6e7288d9
JS		 2441 uint8_t actcmd = MBX_HEARTBEAT;
2442 unsigned long timeout;
2443
a183a15f 2444 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
a6ababd2
AB		 2445 spin_lock_irqsave(&phba->hbalock, iflag);
2446 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
a183a15f 2447 if (phba->sli.mbox_active) {
6e7288d9 2448 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
a183a15f
JS		 2449 /* Determine how long we might wait for the active mailbox
2450 * command to be gracefully completed by firmware.
2451 */
2452 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2453 phba->sli.mbox_active) * 1000) + jiffies;
2454 }
a6ababd2 2455 spin_unlock_irqrestore(&phba->hbalock, iflag);
a183a15f 2456
6e7288d9
JS		 2457 /* Wait for the outstnading mailbox command to complete */
2458 while (phba->sli.mbox_active) {
2459 /* Check active mailbox complete status every 2ms */
2460 msleep(2);
2461 if (time_after(jiffies, timeout)) {
2462 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2463 "2813 Mgmt IO is Blocked %x "
2464 "- mbox cmd %x still active\n",
2465 phba->sli.sli_flag, actcmd);
2466 break;
2467 }
2468 }
a6ababd2
AB		 2469}
2470
e59058c4 2471/**
3621a710 2472 * lpfc_online - Initialize and bring a HBA online
e59058c4
JS		 2473 * @phba: pointer to lpfc hba data structure.
2474 *
2475 * This routine initializes the HBA and brings a HBA online. During this
2476 * process, the management interface is blocked to prevent user space access
2477 * to the HBA interfering with the driver initialization.
2478 *
2479 * Return codes
2480 * 0 - successful
2481 * 1 - failed
2482 **/
dea3101e 2483int
2e0fef85 2484lpfc_online(struct lpfc_hba *phba)
dea3101e 2485{
372bd282 2486 struct lpfc_vport *vport;
549e55cd
JS		 2487 struct lpfc_vport **vports;
2488 int i;
2e0fef85 2489
dea3101e 2490 if (!phba)
2491 return 0;
372bd282 2492 vport = phba->pport;
dea3101e 2493
2e0fef85 2494 if (!(vport->fc_flag & FC_OFFLINE_MODE))
dea3101e 2495 return 0;
2496
ed957684 2497 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
e8b62011 2498 "0458 Bring Adapter online\n");
dea3101e 2499
46fa311e
JS		 2500 lpfc_block_mgmt_io(phba);
2501
2502 if (!lpfc_sli_queue_setup(phba)) {
2503 lpfc_unblock_mgmt_io(phba);
dea3101e 2504 return 1;
46fa311e 2505 }
dea3101e 2506
da0436e9
JS		 2507 if (phba->sli_rev == LPFC_SLI_REV4) {
2508 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2509 lpfc_unblock_mgmt_io(phba);
2510 return 1;
2511 }
2512 } else {
2513 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2514 lpfc_unblock_mgmt_io(phba);
2515 return 1;
2516 }
46fa311e 2517 }
dea3101e 2518
549e55cd
JS		 2519 vports = lpfc_create_vport_work_array(phba);
2520 if (vports != NULL)
da0436e9 2521 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
549e55cd
JS		 2522 struct Scsi_Host *shost;
2523 shost = lpfc_shost_from_vport(vports[i]);
2524 spin_lock_irq(shost->host_lock);
2525 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2526 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2527 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
1c6834a7
JS		 2528 if (phba->sli_rev == LPFC_SLI_REV4)
2529 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
549e55cd
JS		 2530 spin_unlock_irq(shost->host_lock);
2531 }
09372820 2532 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 2533
46fa311e 2534 lpfc_unblock_mgmt_io(phba);
dea3101e 2535 return 0;
2536}
2537
e59058c4 2538/**
3621a710 2539 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
e59058c4
JS		 2540 * @phba: pointer to lpfc hba data structure.
2541 *
2542 * This routine marks a HBA's management interface as not blocked. Once the
2543 * HBA's management interface is marked as not blocked, all the user space
2544 * access to the HBA, whether they are from sysfs interface or libdfc
2545 * interface will be allowed. The HBA is set to block the management interface
2546 * when the driver prepares the HBA interface for online or offline and then
2547 * set to unblock the management interface afterwards.
2548 **/
46fa311e
JS		 2549void
2550lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2551{
2552 unsigned long iflag;
2553
2e0fef85
JS		 2554 spin_lock_irqsave(&phba->hbalock, iflag);
2555 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2556 spin_unlock_irqrestore(&phba->hbalock, iflag);
46fa311e
JS		 2557}
2558
e59058c4 2559/**
3621a710 2560 * lpfc_offline_prep - Prepare a HBA to be brought offline
e59058c4
JS		 2561 * @phba: pointer to lpfc hba data structure.
2562 *
2563 * This routine is invoked to prepare a HBA to be brought offline. It performs
2564 * unregistration login to all the nodes on all vports and flushes the mailbox
2565 * queue to make it ready to be brought offline.
2566 **/
46fa311e
JS		 2567void
2568lpfc_offline_prep(struct lpfc_hba * phba)
2569{
2e0fef85 2570 struct lpfc_vport *vport = phba->pport;
46fa311e 2571 struct lpfc_nodelist *ndlp, *next_ndlp;
87af33fe 2572 struct lpfc_vport **vports;
72100cc4 2573 struct Scsi_Host *shost;
87af33fe 2574 int i;
dea3101e 2575
2e0fef85 2576 if (vport->fc_flag & FC_OFFLINE_MODE)
46fa311e 2577 return;
dea3101e 2578
46fa311e 2579 lpfc_block_mgmt_io(phba);
dea3101e 2580
2581 lpfc_linkdown(phba);
2582
87af33fe
JS		 2583 /* Issue an unreg_login to all nodes on all vports */
2584 vports = lpfc_create_vport_work_array(phba);
2585 if (vports != NULL) {
da0436e9 2586 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
a8adb832
JS		 2587 if (vports[i]->load_flag & FC_UNLOADING)
2588 continue;
72100cc4
JS		 2589 shost = lpfc_shost_from_vport(vports[i]);
2590 spin_lock_irq(shost->host_lock);
c868595d 2591 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
695a814e
JS		 2592 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2593 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
72100cc4 2594 spin_unlock_irq(shost->host_lock);
695a814e 2595
87af33fe
JS		 2596 shost = lpfc_shost_from_vport(vports[i]);
2597 list_for_each_entry_safe(ndlp, next_ndlp,
2598 &vports[i]->fc_nodes,
2599 nlp_listp) {
e47c9093
JS		 2600 if (!NLP_CHK_NODE_ACT(ndlp))
2601 continue;
87af33fe
JS		 2602 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2603 continue;
2604 if (ndlp->nlp_type & NLP_FABRIC) {
2605 lpfc_disc_state_machine(vports[i], ndlp,
2606 NULL, NLP_EVT_DEVICE_RECOVERY);
2607 lpfc_disc_state_machine(vports[i], ndlp,
2608 NULL, NLP_EVT_DEVICE_RM);
2609 }
2610 spin_lock_irq(shost->host_lock);
2611 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2612 spin_unlock_irq(shost->host_lock);
2613 lpfc_unreg_rpi(vports[i], ndlp);
2614 }
2615 }
2616 }
09372820 2617 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 2618
04c68496 2619 lpfc_sli_mbox_sys_shutdown(phba);
46fa311e
JS		 2620}
2621
e59058c4 2622/**
3621a710 2623 * lpfc_offline - Bring a HBA offline
e59058c4
JS		 2624 * @phba: pointer to lpfc hba data structure.
2625 *
2626 * This routine actually brings a HBA offline. It stops all the timers
2627 * associated with the HBA, brings down the SLI layer, and eventually
2628 * marks the HBA as in offline state for the upper layer protocol.
2629 **/
46fa311e 2630void
2e0fef85 2631lpfc_offline(struct lpfc_hba *phba)
46fa311e 2632{
549e55cd
JS		 2633 struct Scsi_Host *shost;
2634 struct lpfc_vport **vports;
2635 int i;
46fa311e 2636
549e55cd 2637 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
46fa311e 2638 return;
688a8863 2639
da0436e9
JS		 2640 /* stop port and all timers associated with this hba */
2641 lpfc_stop_port(phba);
51ef4c26
JS		 2642 vports = lpfc_create_vport_work_array(phba);
2643 if (vports != NULL)
da0436e9 2644 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
51ef4c26 2645 lpfc_stop_vport_timers(vports[i]);
09372820 2646 lpfc_destroy_vport_work_array(phba, vports);
92d7f7b0 2647 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
e8b62011 2648 "0460 Bring Adapter offline\n");
dea3101e 2649 /* Bring down the SLI Layer and cleanup. The HBA is offline
2650 now. */
2651 lpfc_sli_hba_down(phba);
92d7f7b0 2652 spin_lock_irq(&phba->hbalock);
7054a606 2653 phba->work_ha = 0;
92d7f7b0 2654 spin_unlock_irq(&phba->hbalock);
549e55cd
JS		 2655 vports = lpfc_create_vport_work_array(phba);
2656 if (vports != NULL)
da0436e9 2657 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
549e55cd 2658 shost = lpfc_shost_from_vport(vports[i]);
549e55cd
JS		 2659 spin_lock_irq(shost->host_lock);
2660 vports[i]->work_port_events = 0;
2661 vports[i]->fc_flag |= FC_OFFLINE_MODE;
2662 spin_unlock_irq(shost->host_lock);
2663 }
09372820 2664 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 2665}
2666
e59058c4 2667/**
3621a710 2668 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
e59058c4
JS		 2669 * @phba: pointer to lpfc hba data structure.
2670 *
2671 * This routine is to free all the SCSI buffers and IOCBs from the driver
2672 * list back to kernel. It is called from lpfc_pci_remove_one to free
2673 * the internal resources before the device is removed from the system.
2674 *
2675 * Return codes
2676 * 0 - successful (for now, it always returns 0)
2677 **/
dea3101e 2678static int
2e0fef85 2679lpfc_scsi_free(struct lpfc_hba *phba)
dea3101e 2680{
2681 struct lpfc_scsi_buf *sb, *sb_next;
2682 struct lpfc_iocbq *io, *io_next;
2683
2e0fef85 2684 spin_lock_irq(&phba->hbalock);
dea3101e 2685 /* Release all the lpfc_scsi_bufs maintained by this host. */
1c6f4ef5 2686 spin_lock(&phba->scsi_buf_list_lock);
dea3101e 2687 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2688 list_del(&sb->list);
2689 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
92d7f7b0 2690 sb->dma_handle);
dea3101e 2691 kfree(sb);
2692 phba->total_scsi_bufs--;
2693 }
1c6f4ef5 2694 spin_unlock(&phba->scsi_buf_list_lock);
dea3101e 2695
2696 /* Release all the lpfc_iocbq entries maintained by this host. */
2697 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2698 list_del(&io->list);
2699 kfree(io);
2700 phba->total_iocbq_bufs--;
2701 }
6d368e53 2702
2e0fef85 2703 spin_unlock_irq(&phba->hbalock);
dea3101e 2704 return 0;
2705}
2706
e59058c4 2707/**
3621a710 2708 * lpfc_create_port - Create an FC port
e59058c4
JS		 2709 * @phba: pointer to lpfc hba data structure.
2710 * @instance: a unique integer ID to this FC port.
2711 * @dev: pointer to the device data structure.
2712 *
2713 * This routine creates a FC port for the upper layer protocol. The FC port
2714 * can be created on top of either a physical port or a virtual port provided
2715 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2716 * and associates the FC port created before adding the shost into the SCSI
2717 * layer.
2718 *
2719 * Return codes
2720 * @vport - pointer to the virtual N_Port data structure.
2721 * NULL - port create failed.
2722 **/
2e0fef85 2723struct lpfc_vport *
3de2a653 2724lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
47a8617c 2725{
2e0fef85
JS		 2726 struct lpfc_vport *vport;
2727 struct Scsi_Host *shost;
2728 int error = 0;
47a8617c 2729
3de2a653
JS		 2730 if (dev != &phba->pcidev->dev)
2731 shost = scsi_host_alloc(&lpfc_vport_template,
2732 sizeof(struct lpfc_vport));
2733 else
2734 shost = scsi_host_alloc(&lpfc_template,
2735 sizeof(struct lpfc_vport));
2e0fef85
JS		 2736 if (!shost)
2737 goto out;
47a8617c 2738
2e0fef85
JS		 2739 vport = (struct lpfc_vport *) shost->hostdata;
2740 vport->phba = phba;
2e0fef85 2741 vport->load_flag |= FC_LOADING;
92d7f7b0 2742 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
7f5f3d0d 2743 vport->fc_rscn_flush = 0;
47a8617c 2744
3de2a653 2745 lpfc_get_vport_cfgparam(vport);
2e0fef85
JS		 2746 shost->unique_id = instance;
2747 shost->max_id = LPFC_MAX_TARGET;
3de2a653 2748 shost->max_lun = vport->cfg_max_luns;
2e0fef85
JS		 2749 shost->this_id = -1;
2750 shost->max_cmd_len = 16;
da0436e9 2751 if (phba->sli_rev == LPFC_SLI_REV4) {
28baac74 2752 shost->dma_boundary =
cb5172ea 2753 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
da0436e9
JS		 2754 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2755 }
81301a9b 2756
47a8617c 2757 /*
2e0fef85
JS		 2758 * Set initial can_queue value since 0 is no longer supported and
2759 * scsi_add_host will fail. This will be adjusted later based on the
2760 * max xri value determined in hba setup.
47a8617c 2761 */
2e0fef85 2762 shost->can_queue = phba->cfg_hba_queue_depth - 10;
3de2a653 2763 if (dev != &phba->pcidev->dev) {
92d7f7b0
JS		 2764 shost->transportt = lpfc_vport_transport_template;
2765 vport->port_type = LPFC_NPIV_PORT;
2766 } else {
2767 shost->transportt = lpfc_transport_template;
2768 vport->port_type = LPFC_PHYSICAL_PORT;
2769 }
47a8617c 2770
2e0fef85
JS		 2771 /* Initialize all internally managed lists. */
2772 INIT_LIST_HEAD(&vport->fc_nodes);
da0436e9 2773 INIT_LIST_HEAD(&vport->rcv_buffer_list);
2e0fef85 2774 spin_lock_init(&vport->work_port_lock);
47a8617c 2775
2e0fef85
JS		 2776 init_timer(&vport->fc_disctmo);
2777 vport->fc_disctmo.function = lpfc_disc_timeout;
92d7f7b0 2778 vport->fc_disctmo.data = (unsigned long)vport;
47a8617c 2779
2e0fef85
JS		 2780 init_timer(&vport->fc_fdmitmo);
2781 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
92d7f7b0 2782 vport->fc_fdmitmo.data = (unsigned long)vport;
47a8617c 2783
2e0fef85
JS		 2784 init_timer(&vport->els_tmofunc);
2785 vport->els_tmofunc.function = lpfc_els_timeout;
92d7f7b0 2786 vport->els_tmofunc.data = (unsigned long)vport;
92494144
JS		 2787
2788 init_timer(&vport->delayed_disc_tmo);
2789 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
2790 vport->delayed_disc_tmo.data = (unsigned long)vport;
2791
d139b9bd 2792 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2e0fef85
JS		 2793 if (error)
2794 goto out_put_shost;
47a8617c 2795
549e55cd 2796 spin_lock_irq(&phba->hbalock);
2e0fef85 2797 list_add_tail(&vport->listentry, &phba->port_list);
549e55cd 2798 spin_unlock_irq(&phba->hbalock);
2e0fef85 2799 return vport;
47a8617c 2800
2e0fef85
JS		 2801out_put_shost:
2802 scsi_host_put(shost);
2803out:
2804 return NULL;
47a8617c
JS		 2805}
2806
e59058c4 2807/**
3621a710 2808 * destroy_port - destroy an FC port
e59058c4
JS		 2809 * @vport: pointer to an lpfc virtual N_Port data structure.
2810 *
2811 * This routine destroys a FC port from the upper layer protocol. All the
2812 * resources associated with the port are released.
2813 **/
2e0fef85
JS		 2814void
2815destroy_port(struct lpfc_vport *vport)
47a8617c 2816{
92d7f7b0
JS		 2817 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2818 struct lpfc_hba *phba = vport->phba;
47a8617c 2819
858c9f6c 2820 lpfc_debugfs_terminate(vport);
92d7f7b0
JS		 2821 fc_remove_host(shost);
2822 scsi_remove_host(shost);
47a8617c 2823
92d7f7b0
JS		 2824 spin_lock_irq(&phba->hbalock);
2825 list_del_init(&vport->listentry);
2826 spin_unlock_irq(&phba->hbalock);
47a8617c 2827
92d7f7b0 2828 lpfc_cleanup(vport);
47a8617c 2829 return;
47a8617c
JS		 2830}
2831
e59058c4 2832/**
3621a710 2833 * lpfc_get_instance - Get a unique integer ID
e59058c4
JS		 2834 *
2835 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2836 * uses the kernel idr facility to perform the task.
2837 *
2838 * Return codes:
2839 * instance - a unique integer ID allocated as the new instance.
2840 * -1 - lpfc get instance failed.
2841 **/
92d7f7b0
JS		 2842int
2843lpfc_get_instance(void)
2844{
2845 int instance = 0;
47a8617c 2846
92d7f7b0
JS		 2847 /* Assign an unused number */
2848 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2849 return -1;
2850 if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2851 return -1;
2852 return instance;
47a8617c
JS		 2853}
2854
e59058c4 2855/**
3621a710 2856 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
e59058c4
JS		 2857 * @shost: pointer to SCSI host data structure.
2858 * @time: elapsed time of the scan in jiffies.
2859 *
2860 * This routine is called by the SCSI layer with a SCSI host to determine
2861 * whether the scan host is finished.
2862 *
2863 * Note: there is no scan_start function as adapter initialization will have
2864 * asynchronously kicked off the link initialization.
2865 *
2866 * Return codes
2867 * 0 - SCSI host scan is not over yet.
2868 * 1 - SCSI host scan is over.
2869 **/
47a8617c
JS		 2870int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2871{
2e0fef85
JS		 2872 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2873 struct lpfc_hba *phba = vport->phba;
858c9f6c 2874 int stat = 0;
47a8617c 2875
858c9f6c
JS		 2876 spin_lock_irq(shost->host_lock);
2877
51ef4c26 2878 if (vport->load_flag & FC_UNLOADING) {
858c9f6c
JS		 2879 stat = 1;
2880 goto finished;
2881 }
2e0fef85
JS		 2882 if (time >= 30 * HZ) {
2883 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011
JS		 2884 "0461 Scanning longer than 30 "
2885 "seconds. Continuing initialization\n");
858c9f6c 2886 stat = 1;
47a8617c 2887 goto finished;
2e0fef85
JS		 2888 }
2889 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2890 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011
JS		 2891 "0465 Link down longer than 15 "
2892 "seconds. Continuing initialization\n");
858c9f6c 2893 stat = 1;
47a8617c 2894 goto finished;
2e0fef85 2895 }
47a8617c 2896
2e0fef85 2897 if (vport->port_state != LPFC_VPORT_READY)
858c9f6c 2898 goto finished;
2e0fef85 2899 if (vport->num_disc_nodes || vport->fc_prli_sent)
858c9f6c 2900 goto finished;
2e0fef85 2901 if (vport->fc_map_cnt == 0 && time < 2 * HZ)
858c9f6c 2902 goto finished;
2e0fef85 2903 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
858c9f6c
JS		 2904 goto finished;
2905
2906 stat = 1;
47a8617c
JS		 2907
2908finished:
858c9f6c
JS		 2909 spin_unlock_irq(shost->host_lock);
2910 return stat;
92d7f7b0 2911}
47a8617c 2912
e59058c4 2913/**
3621a710 2914 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
e59058c4
JS		 2915 * @shost: pointer to SCSI host data structure.
2916 *
2917 * This routine initializes a given SCSI host attributes on a FC port. The
2918 * SCSI host can be either on top of a physical port or a virtual port.
2919 **/
92d7f7b0
JS		 2920void lpfc_host_attrib_init(struct Scsi_Host *shost)
2921{
2922 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2923 struct lpfc_hba *phba = vport->phba;
47a8617c 2924 /*
2e0fef85 2925 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
47a8617c
JS		 2926 */
2927
2e0fef85
JS		 2928 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2929 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
47a8617c
JS		 2930 fc_host_supported_classes(shost) = FC_COS_CLASS3;
2931
2932 memset(fc_host_supported_fc4s(shost), 0,
2e0fef85 2933 sizeof(fc_host_supported_fc4s(shost)));
47a8617c
JS		 2934 fc_host_supported_fc4s(shost)[2] = 1;
2935 fc_host_supported_fc4s(shost)[7] = 1;
2936
92d7f7b0
JS		 2937 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2938 sizeof fc_host_symbolic_name(shost));
47a8617c
JS		 2939
2940 fc_host_supported_speeds(shost) = 0;
88a2cfbb
JS		 2941 if (phba->lmt & LMT_16Gb)
2942 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
47a8617c
JS		 2943 if (phba->lmt & LMT_10Gb)
2944 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
a8adb832
JS		 2945 if (phba->lmt & LMT_8Gb)
2946 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
47a8617c
JS		 2947 if (phba->lmt & LMT_4Gb)
2948 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2949 if (phba->lmt & LMT_2Gb)
2950 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2951 if (phba->lmt & LMT_1Gb)
2952 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2953
2954 fc_host_maxframe_size(shost) =
2e0fef85
JS		 2955 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2956 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
47a8617c 2957
0af5d708
MC		 2958 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
2959
47a8617c
JS		 2960 /* This value is also unchanging */
2961 memset(fc_host_active_fc4s(shost), 0,
2e0fef85 2962 sizeof(fc_host_active_fc4s(shost)));
47a8617c
JS		 2963 fc_host_active_fc4s(shost)[2] = 1;
2964 fc_host_active_fc4s(shost)[7] = 1;
2965
92d7f7b0 2966 fc_host_max_npiv_vports(shost) = phba->max_vpi;
47a8617c 2967 spin_lock_irq(shost->host_lock);
51ef4c26 2968 vport->load_flag &= ~FC_LOADING;
47a8617c 2969 spin_unlock_irq(shost->host_lock);
47a8617c 2970}
dea3101e 2971
e59058c4 2972/**
da0436e9 2973 * lpfc_stop_port_s3 - Stop SLI3 device port
e59058c4
JS		 2974 * @phba: pointer to lpfc hba data structure.
2975 *
da0436e9
JS		 2976 * This routine is invoked to stop an SLI3 device port, it stops the device
2977 * from generating interrupts and stops the device driver's timers for the
2978 * device.
e59058c4 2979 **/
da0436e9
JS		 2980static void
2981lpfc_stop_port_s3(struct lpfc_hba *phba)
db2378e0 2982{
da0436e9
JS		 2983 /* Clear all interrupt enable conditions */
2984 writel(0, phba->HCregaddr);
2985 readl(phba->HCregaddr); /* flush */
2986 /* Clear all pending interrupts */
2987 writel(0xffffffff, phba->HAregaddr);
2988 readl(phba->HAregaddr); /* flush */
db2378e0 2989
da0436e9
JS		 2990 /* Reset some HBA SLI setup states */
2991 lpfc_stop_hba_timers(phba);
2992 phba->pport->work_port_events = 0;
2993}
db2378e0 2994
da0436e9
JS		 2995/**
2996 * lpfc_stop_port_s4 - Stop SLI4 device port
2997 * @phba: pointer to lpfc hba data structure.
2998 *
2999 * This routine is invoked to stop an SLI4 device port, it stops the device
3000 * from generating interrupts and stops the device driver's timers for the
3001 * device.
3002 **/
3003static void
3004lpfc_stop_port_s4(struct lpfc_hba *phba)
3005{
3006 /* Reset some HBA SLI4 setup states */
3007 lpfc_stop_hba_timers(phba);
3008 phba->pport->work_port_events = 0;
3009 phba->sli4_hba.intr_enable = 0;
da0436e9 3010}
9399627f 3011
da0436e9
JS		 3012/**
3013 * lpfc_stop_port - Wrapper function for stopping hba port
3014 * @phba: Pointer to HBA context object.
3015 *
3016 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3017 * the API jump table function pointer from the lpfc_hba struct.
3018 **/
3019void
3020lpfc_stop_port(struct lpfc_hba *phba)
3021{
3022 phba->lpfc_stop_port(phba);
3023}
db2378e0 3024
ecfd03c6
JS		 3025/**
3026 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3027 * @phba: Pointer to hba for which this call is being executed.
3028 *
3029 * This routine starts the timer waiting for the FCF rediscovery to complete.
3030 **/
3031void
3032lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3033{
3034 unsigned long fcf_redisc_wait_tmo =
3035 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3036 /* Start fcf rediscovery wait period timer */
3037 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3038 spin_lock_irq(&phba->hbalock);
3039 /* Allow action to new fcf asynchronous event */
3040 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3041 /* Mark the FCF rediscovery pending state */
3042 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3043 spin_unlock_irq(&phba->hbalock);
3044}
3045
3046/**
3047 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3048 * @ptr: Map to lpfc_hba data structure pointer.
3049 *
3050 * This routine is invoked when waiting for FCF table rediscover has been
3051 * timed out. If new FCF record(s) has (have) been discovered during the
3052 * wait period, a new FCF event shall be added to the FCOE async event
3053 * list, and then worker thread shall be waked up for processing from the
3054 * worker thread context.
3055 **/
3056void
3057lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3058{
3059 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3060
3061 /* Don't send FCF rediscovery event if timer cancelled */
3062 spin_lock_irq(&phba->hbalock);
3063 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3064 spin_unlock_irq(&phba->hbalock);
3065 return;
3066 }
3067 /* Clear FCF rediscovery timer pending flag */
3068 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3069 /* FCF rediscovery event to worker thread */
3070 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3071 spin_unlock_irq(&phba->hbalock);
0c9ab6f5 3072 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
a93ff37a 3073 "2776 FCF rediscover quiescent timer expired\n");
ecfd03c6
JS		 3074 /* wake up worker thread */
3075 lpfc_worker_wake_up(phba);
3076}
3077
e59058c4 3078/**
da0436e9 3079 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
e59058c4 3080 * @phba: pointer to lpfc hba data structure.
da0436e9 3081 * @acqe_link: pointer to the async link completion queue entry.
e59058c4 3082 *
da0436e9
JS		 3083 * This routine is to parse the SLI4 link-attention link fault code and
3084 * translate it into the base driver's read link attention mailbox command
3085 * status.
3086 *
3087 * Return: Link-attention status in terms of base driver's coding.
e59058c4 3088 **/
da0436e9
JS		 3089static uint16_t
3090lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3091 struct lpfc_acqe_link *acqe_link)
db2378e0 3092{
da0436e9 3093 uint16_t latt_fault;
9399627f 3094
da0436e9
JS		 3095 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3096 case LPFC_ASYNC_LINK_FAULT_NONE:
3097 case LPFC_ASYNC_LINK_FAULT_LOCAL:
3098 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3099 latt_fault = 0;
3100 break;
3101 default:
3102 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3103 "0398 Invalid link fault code: x%x\n",
3104 bf_get(lpfc_acqe_link_fault, acqe_link));
3105 latt_fault = MBXERR_ERROR;
3106 break;
3107 }
3108 return latt_fault;
db2378e0
JS		 3109}
3110
5b75da2f 3111/**
da0436e9 3112 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
5b75da2f 3113 * @phba: pointer to lpfc hba data structure.
da0436e9 3114 * @acqe_link: pointer to the async link completion queue entry.
5b75da2f 3115 *
da0436e9
JS		 3116 * This routine is to parse the SLI4 link attention type and translate it
3117 * into the base driver's link attention type coding.
5b75da2f 3118 *
da0436e9
JS		 3119 * Return: Link attention type in terms of base driver's coding.
3120 **/
3121static uint8_t
3122lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3123 struct lpfc_acqe_link *acqe_link)
5b75da2f 3124{
da0436e9 3125 uint8_t att_type;
5b75da2f 3126
da0436e9
JS		 3127 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3128 case LPFC_ASYNC_LINK_STATUS_DOWN:
3129 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
76a95d75 3130 att_type = LPFC_ATT_LINK_DOWN;
da0436e9
JS		 3131 break;
3132 case LPFC_ASYNC_LINK_STATUS_UP:
3133 /* Ignore physical link up events - wait for logical link up */
76a95d75 3134 att_type = LPFC_ATT_RESERVED;
da0436e9
JS		 3135 break;
3136 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
76a95d75 3137 att_type = LPFC_ATT_LINK_UP;
da0436e9
JS		 3138 break;
3139 default:
3140 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3141 "0399 Invalid link attention type: x%x\n",
3142 bf_get(lpfc_acqe_link_status, acqe_link));
76a95d75 3143 att_type = LPFC_ATT_RESERVED;
da0436e9 3144 break;
5b75da2f 3145 }
da0436e9 3146 return att_type;
5b75da2f
JS		 3147}
3148
3149/**
da0436e9 3150 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
5b75da2f 3151 * @phba: pointer to lpfc hba data structure.
da0436e9 3152 * @acqe_link: pointer to the async link completion queue entry.
5b75da2f 3153 *
da0436e9
JS		 3154 * This routine is to parse the SLI4 link-attention link speed and translate
3155 * it into the base driver's link-attention link speed coding.
3156 *
3157 * Return: Link-attention link speed in terms of base driver's coding.
3158 **/
3159static uint8_t
3160lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3161 struct lpfc_acqe_link *acqe_link)
5b75da2f 3162{
da0436e9
JS		 3163 uint8_t link_speed;
3164
3165 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3166 case LPFC_ASYNC_LINK_SPEED_ZERO:
da0436e9 3167 case LPFC_ASYNC_LINK_SPEED_10MBPS:
da0436e9 3168 case LPFC_ASYNC_LINK_SPEED_100MBPS:
76a95d75 3169 link_speed = LPFC_LINK_SPEED_UNKNOWN;
da0436e9
JS		 3170 break;
3171 case LPFC_ASYNC_LINK_SPEED_1GBPS:
76a95d75 3172 link_speed = LPFC_LINK_SPEED_1GHZ;
da0436e9
JS		 3173 break;
3174 case LPFC_ASYNC_LINK_SPEED_10GBPS:
76a95d75 3175 link_speed = LPFC_LINK_SPEED_10GHZ;
da0436e9
JS		 3176 break;
3177 default:
3178 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3179 "0483 Invalid link-attention link speed: x%x\n",
3180 bf_get(lpfc_acqe_link_speed, acqe_link));
76a95d75 3181 link_speed = LPFC_LINK_SPEED_UNKNOWN;
da0436e9
JS		 3182 break;
3183 }
3184 return link_speed;
3185}
3186
3187/**
70f3c073 3188 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
da0436e9
JS		 3189 * @phba: pointer to lpfc hba data structure.
3190 * @acqe_link: pointer to the async link completion queue entry.
3191 *
70f3c073 3192 * This routine is to handle the SLI4 asynchronous FCoE link event.
da0436e9
JS		 3193 **/
3194static void
3195lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3196 struct lpfc_acqe_link *acqe_link)
3197{
3198 struct lpfc_dmabuf *mp;
3199 LPFC_MBOXQ_t *pmb;
3200 MAILBOX_t *mb;
76a95d75 3201 struct lpfc_mbx_read_top *la;
da0436e9 3202 uint8_t att_type;
76a95d75 3203 int rc;
da0436e9
JS		 3204
3205 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
76a95d75 3206 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
da0436e9 3207 return;
32b9793f 3208 phba->fcoe_eventtag = acqe_link->event_tag;
da0436e9
JS		 3209 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3210 if (!pmb) {
3211 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3212 "0395 The mboxq allocation failed\n");
3213 return;
3214 }
3215 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3216 if (!mp) {
3217 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3218 "0396 The lpfc_dmabuf allocation failed\n");
3219 goto out_free_pmb;
3220 }
3221 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3222 if (!mp->virt) {
3223 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3224 "0397 The mbuf allocation failed\n");
3225 goto out_free_dmabuf;
3226 }
3227
3228 /* Cleanup any outstanding ELS commands */
3229 lpfc_els_flush_all_cmd(phba);
3230
3231 /* Block ELS IOCBs until we have done process link event */
3232 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3233
3234 /* Update link event statistics */
3235 phba->sli.slistat.link_event++;
3236
76a95d75
JS		 3237 /* Create lpfc_handle_latt mailbox command from link ACQE */
3238 lpfc_read_topology(phba, pmb, mp);
3239 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
da0436e9
JS		 3240 pmb->vport = phba->pport;
3241
da0436e9
JS		 3242 /* Keep the link status for extra SLI4 state machine reference */
3243 phba->sli4_hba.link_state.speed =
3244 bf_get(lpfc_acqe_link_speed, acqe_link);
3245 phba->sli4_hba.link_state.duplex =
3246 bf_get(lpfc_acqe_link_duplex, acqe_link);
3247 phba->sli4_hba.link_state.status =
3248 bf_get(lpfc_acqe_link_status, acqe_link);
70f3c073
JS		 3249 phba->sli4_hba.link_state.type =
3250 bf_get(lpfc_acqe_link_type, acqe_link);
3251 phba->sli4_hba.link_state.number =
3252 bf_get(lpfc_acqe_link_number, acqe_link);
da0436e9
JS		 3253 phba->sli4_hba.link_state.fault =
3254 bf_get(lpfc_acqe_link_fault, acqe_link);
65467b6b 3255 phba->sli4_hba.link_state.logical_speed =
70f3c073
JS		 3256 bf_get(lpfc_acqe_logical_link_speed, acqe_link);
3257 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
c31098ce
JS		 3258 "2900 Async FC/FCoE Link event - Speed:%dGBit "
3259 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3260 "Logical speed:%dMbps Fault:%d\n",
70f3c073
JS		 3261 phba->sli4_hba.link_state.speed,
3262 phba->sli4_hba.link_state.topology,
3263 phba->sli4_hba.link_state.status,
3264 phba->sli4_hba.link_state.type,
3265 phba->sli4_hba.link_state.number,
3266 phba->sli4_hba.link_state.logical_speed * 10,
3267 phba->sli4_hba.link_state.fault);
76a95d75
JS		 3268 /*
3269 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3270 * topology info. Note: Optional for non FC-AL ports.
3271 */
3272 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3273 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3274 if (rc == MBX_NOT_FINISHED)
3275 goto out_free_dmabuf;
3276 return;
3277 }
3278 /*
3279 * For FCoE Mode: fill in all the topology information we need and call
3280 * the READ_TOPOLOGY completion routine to continue without actually
3281 * sending the READ_TOPOLOGY mailbox command to the port.
3282 */
3283 /* Parse and translate status field */
3284 mb = &pmb->u.mb;
3285 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3286
3287 /* Parse and translate link attention fields */
3288 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3289 la->eventTag = acqe_link->event_tag;
3290 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3291 bf_set(lpfc_mbx_read_top_link_spd, la,
3292 lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3293
3294 /* Fake the the following irrelvant fields */
3295 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3296 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3297 bf_set(lpfc_mbx_read_top_il, la, 0);
3298 bf_set(lpfc_mbx_read_top_pb, la, 0);
3299 bf_set(lpfc_mbx_read_top_fa, la, 0);
3300 bf_set(lpfc_mbx_read_top_mm, la, 0);
da0436e9
JS		 3301
3302 /* Invoke the lpfc_handle_latt mailbox command callback function */
76a95d75 3303 lpfc_mbx_cmpl_read_topology(phba, pmb);
da0436e9 3304
5b75da2f 3305 return;
da0436e9
JS		 3306
3307out_free_dmabuf:
3308 kfree(mp);
3309out_free_pmb:
3310 mempool_free(pmb, phba->mbox_mem_pool);
3311}
3312
70f3c073
JS		 3313/**
3314 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3315 * @phba: pointer to lpfc hba data structure.
3316 * @acqe_fc: pointer to the async fc completion queue entry.
3317 *
3318 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3319 * that the event was received and then issue a read_topology mailbox command so
3320 * that the rest of the driver will treat it the same as SLI3.
3321 **/
3322static void
3323lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3324{
3325 struct lpfc_dmabuf *mp;
3326 LPFC_MBOXQ_t *pmb;
3327 int rc;
3328
3329 if (bf_get(lpfc_trailer_type, acqe_fc) !=
3330 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3331 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3332 "2895 Non FC link Event detected.(%d)\n",
3333 bf_get(lpfc_trailer_type, acqe_fc));
3334 return;
3335 }
3336 /* Keep the link status for extra SLI4 state machine reference */
3337 phba->sli4_hba.link_state.speed =
3338 bf_get(lpfc_acqe_fc_la_speed, acqe_fc);
3339 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3340 phba->sli4_hba.link_state.topology =
3341 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3342 phba->sli4_hba.link_state.status =
3343 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3344 phba->sli4_hba.link_state.type =
3345 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3346 phba->sli4_hba.link_state.number =
3347 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3348 phba->sli4_hba.link_state.fault =
3349 bf_get(lpfc_acqe_link_fault, acqe_fc);
3350 phba->sli4_hba.link_state.logical_speed =
3351 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
3352 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3353 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3354 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3355 "%dMbps Fault:%d\n",
3356 phba->sli4_hba.link_state.speed,
3357 phba->sli4_hba.link_state.topology,
3358 phba->sli4_hba.link_state.status,
3359 phba->sli4_hba.link_state.type,
3360 phba->sli4_hba.link_state.number,
3361 phba->sli4_hba.link_state.logical_speed * 10,
3362 phba->sli4_hba.link_state.fault);
3363 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3364 if (!pmb) {
3365 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3366 "2897 The mboxq allocation failed\n");
3367 return;
3368 }
3369 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3370 if (!mp) {
3371 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3372 "2898 The lpfc_dmabuf allocation failed\n");
3373 goto out_free_pmb;
3374 }
3375 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3376 if (!mp->virt) {
3377 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3378 "2899 The mbuf allocation failed\n");
3379 goto out_free_dmabuf;
3380 }
3381
3382 /* Cleanup any outstanding ELS commands */
3383 lpfc_els_flush_all_cmd(phba);
3384
3385 /* Block ELS IOCBs until we have done process link event */
3386 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3387
3388 /* Update link event statistics */
3389 phba->sli.slistat.link_event++;
3390
3391 /* Create lpfc_handle_latt mailbox command from link ACQE */
3392 lpfc_read_topology(phba, pmb, mp);
3393 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3394 pmb->vport = phba->pport;
3395
3396 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3397 if (rc == MBX_NOT_FINISHED)
3398 goto out_free_dmabuf;
3399 return;
3400
3401out_free_dmabuf:
3402 kfree(mp);
3403out_free_pmb:
3404 mempool_free(pmb, phba->mbox_mem_pool);
3405}
3406
3407/**
3408 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3409 * @phba: pointer to lpfc hba data structure.
3410 * @acqe_fc: pointer to the async SLI completion queue entry.
3411 *
3412 * This routine is to handle the SLI4 asynchronous SLI events.
3413 **/
3414static void
3415lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3416{
3417 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3418 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3419 "x%08x SLI Event Type:%d",
3420 acqe_sli->event_data1, acqe_sli->event_data2,
3421 bf_get(lpfc_trailer_type, acqe_sli));
3422 return;
3423}
3424
fc2b989b
JS		 3425/**
3426 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3427 * @vport: pointer to vport data structure.
3428 *
3429 * This routine is to perform Clear Virtual Link (CVL) on a vport in
3430 * response to a CVL event.
3431 *
3432 * Return the pointer to the ndlp with the vport if successful, otherwise
3433 * return NULL.
3434 **/
3435static struct lpfc_nodelist *
3436lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3437{
3438 struct lpfc_nodelist *ndlp;
3439 struct Scsi_Host *shost;
3440 struct lpfc_hba *phba;
3441
3442 if (!vport)
3443 return NULL;
fc2b989b
JS		 3444 phba = vport->phba;
3445 if (!phba)
3446 return NULL;
78730cfe
JS		 3447 ndlp = lpfc_findnode_did(vport, Fabric_DID);
3448 if (!ndlp) {
3449 /* Cannot find existing Fabric ndlp, so allocate a new one */
3450 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3451 if (!ndlp)
3452 return 0;
3453 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3454 /* Set the node type */
3455 ndlp->nlp_type |= NLP_FABRIC;
3456 /* Put ndlp onto node list */
3457 lpfc_enqueue_node(vport, ndlp);
3458 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3459 /* re-setup ndlp without removing from node list */
3460 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3461 if (!ndlp)
3462 return 0;
3463 }
63e801ce
JS		 3464 if ((phba->pport->port_state < LPFC_FLOGI) &&
3465 (phba->pport->port_state != LPFC_VPORT_FAILED))
fc2b989b
JS		 3466 return NULL;
3467 /* If virtual link is not yet instantiated ignore CVL */
63e801ce
JS		 3468 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
3469 && (vport->port_state != LPFC_VPORT_FAILED))
fc2b989b
JS		 3470 return NULL;
3471 shost = lpfc_shost_from_vport(vport);
3472 if (!shost)
3473 return NULL;
3474 lpfc_linkdown_port(vport);
3475 lpfc_cleanup_pending_mbox(vport);
3476 spin_lock_irq(shost->host_lock);
3477 vport->fc_flag |= FC_VPORT_CVL_RCVD;
3478 spin_unlock_irq(shost->host_lock);
3479
3480 return ndlp;
3481}
3482
3483/**
3484 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3485 * @vport: pointer to lpfc hba data structure.
3486 *
3487 * This routine is to perform Clear Virtual Link (CVL) on all vports in
3488 * response to a FCF dead event.
3489 **/
3490static void
3491lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3492{
3493 struct lpfc_vport **vports;
3494 int i;
3495
3496 vports = lpfc_create_vport_work_array(phba);
3497 if (vports)
3498 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3499 lpfc_sli4_perform_vport_cvl(vports[i]);
3500 lpfc_destroy_vport_work_array(phba, vports);
3501}
3502
da0436e9 3503/**
76a95d75 3504 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
da0436e9
JS		 3505 * @phba: pointer to lpfc hba data structure.
3506 * @acqe_link: pointer to the async fcoe completion queue entry.
3507 *
3508 * This routine is to handle the SLI4 asynchronous fcoe event.
3509 **/
3510static void
76a95d75 3511lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
70f3c073 3512 struct lpfc_acqe_fip *acqe_fip)
da0436e9 3513{
70f3c073 3514 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
da0436e9 3515 int rc;
6669f9bb
JS		 3516 struct lpfc_vport *vport;
3517 struct lpfc_nodelist *ndlp;
3518 struct Scsi_Host *shost;
695a814e
JS		 3519 int active_vlink_present;
3520 struct lpfc_vport **vports;
3521 int i;
da0436e9 3522
70f3c073
JS		 3523 phba->fc_eventTag = acqe_fip->event_tag;
3524 phba->fcoe_eventtag = acqe_fip->event_tag;
da0436e9 3525 switch (event_type) {
70f3c073
JS		 3526 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
3527 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
3528 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
999d813f
JS		 3529 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3530 LOG_DISCOVERY,
a93ff37a
JS		 3531 "2546 New FCF event, evt_tag:x%x, "
3532 "index:x%x\n",
70f3c073
JS		 3533 acqe_fip->event_tag,
3534 acqe_fip->index);
999d813f
JS		 3535 else
3536 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3537 LOG_DISCOVERY,
a93ff37a
JS		 3538 "2788 FCF param modified event, "
3539 "evt_tag:x%x, index:x%x\n",
70f3c073
JS		 3540 acqe_fip->event_tag,
3541 acqe_fip->index);
38b92ef8 3542 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
0c9ab6f5
JS		 3543 /*
3544 * During period of FCF discovery, read the FCF
3545 * table record indexed by the event to update
a93ff37a 3546 * FCF roundrobin failover eligible FCF bmask.
0c9ab6f5
JS		 3547 */
3548 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3549 LOG_DISCOVERY,
a93ff37a
JS		 3550 "2779 Read FCF (x%x) for updating "
3551 "roundrobin FCF failover bmask\n",
70f3c073
JS		 3552 acqe_fip->index);
3553 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
0c9ab6f5 3554 }
38b92ef8
JS		 3555
3556 /* If the FCF discovery is in progress, do nothing. */
3804dc84 3557 spin_lock_irq(&phba->hbalock);
a93ff37a 3558 if (phba->hba_flag & FCF_TS_INPROG) {
38b92ef8
JS		 3559 spin_unlock_irq(&phba->hbalock);
3560 break;
3561 }
3562 /* If fast FCF failover rescan event is pending, do nothing */
3563 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3564 spin_unlock_irq(&phba->hbalock);
3565 break;
3566 }
3567
3568 /* If the FCF has been in discovered state, do nothing. */
3804dc84
JS		 3569 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
3570 spin_unlock_irq(&phba->hbalock);
3571 break;
3572 }
3573 spin_unlock_irq(&phba->hbalock);
38b92ef8 3574
0c9ab6f5
JS		 3575 /* Otherwise, scan the entire FCF table and re-discover SAN */
3576 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
a93ff37a
JS		 3577 "2770 Start FCF table scan per async FCF "
3578 "event, evt_tag:x%x, index:x%x\n",
70f3c073 3579 acqe_fip->event_tag, acqe_fip->index);
0c9ab6f5
JS		 3580 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3581 LPFC_FCOE_FCF_GET_FIRST);
da0436e9 3582 if (rc)
0c9ab6f5
JS		 3583 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3584 "2547 Issue FCF scan read FCF mailbox "
a93ff37a 3585 "command failed (x%x)\n", rc);
da0436e9
JS		 3586 break;
3587
70f3c073 3588 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
da0436e9 3589 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
e4e74273 3590 "2548 FCF Table full count 0x%x tag 0x%x\n",
70f3c073
JS		 3591 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
3592 acqe_fip->event_tag);
da0436e9
JS		 3593 break;
3594
70f3c073 3595 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
0c9ab6f5 3596 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
a93ff37a 3597 "2549 FCF (x%x) disconnected from network, "
70f3c073 3598 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
38b92ef8
JS		 3599 /*
3600 * If we are in the middle of FCF failover process, clear
3601 * the corresponding FCF bit in the roundrobin bitmap.
da0436e9 3602 */
fc2b989b 3603 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3604 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
fc2b989b 3605 spin_unlock_irq(&phba->hbalock);
0c9ab6f5 3606 /* Update FLOGI FCF failover eligible FCF bmask */
70f3c073 3607 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
fc2b989b
JS		 3608 break;
3609 }
38b92ef8
JS		 3610 spin_unlock_irq(&phba->hbalock);
3611
3612 /* If the event is not for currently used fcf do nothing */
70f3c073 3613 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
38b92ef8
JS		 3614 break;
3615
3616 /*
3617 * Otherwise, request the port to rediscover the entire FCF
3618 * table for a fast recovery from case that the current FCF
3619 * is no longer valid as we are not in the middle of FCF
3620 * failover process already.
3621 */
3622 spin_lock_irq(&phba->hbalock);
fc2b989b 3623 /* Mark the fast failover process in progress */
0c9ab6f5 3624 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
fc2b989b 3625 spin_unlock_irq(&phba->hbalock);
38b92ef8 3626
0c9ab6f5
JS		 3627 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3628 "2771 Start FCF fast failover process due to "
3629 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
70f3c073 3630 "\n", acqe_fip->event_tag, acqe_fip->index);
fc2b989b
JS		 3631 rc = lpfc_sli4_redisc_fcf_table(phba);
3632 if (rc) {
0c9ab6f5
JS		 3633 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3634 LOG_DISCOVERY,
3635 "2772 Issue FCF rediscover mabilbox "
3636 "command failed, fail through to FCF "
3637 "dead event\n");
fc2b989b 3638 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3639 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
fc2b989b
JS		 3640 spin_unlock_irq(&phba->hbalock);
3641 /*
3642 * Last resort will fail over by treating this
3643 * as a link down to FCF registration.
3644 */
3645 lpfc_sli4_fcf_dead_failthrough(phba);
38b92ef8
JS		 3646 } else {
3647 /* Reset FCF roundrobin bmask for new discovery */
7d791df7 3648 lpfc_sli4_clear_fcf_rr_bmask(phba);
38b92ef8
JS		 3649 /*
3650 * Handling fast FCF failover to a DEAD FCF event is
3651 * considered equalivant to receiving CVL to all vports.
fc2b989b
JS		 3652 */
3653 lpfc_sli4_perform_all_vport_cvl(phba);
38b92ef8 3654 }
da0436e9 3655 break;
70f3c073 3656 case LPFC_FIP_EVENT_TYPE_CVL:
0c9ab6f5 3657 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
6669f9bb 3658 "2718 Clear Virtual Link Received for VPI 0x%x"
70f3c073 3659 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
6d368e53 3660
6669f9bb 3661 vport = lpfc_find_vport_by_vpid(phba,
5248a749 3662 acqe_fip->index);
fc2b989b 3663 ndlp = lpfc_sli4_perform_vport_cvl(vport);
6669f9bb
JS		 3664 if (!ndlp)
3665 break;
695a814e
JS		 3666 active_vlink_present = 0;
3667
3668 vports = lpfc_create_vport_work_array(phba);
3669 if (vports) {
3670 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3671 i++) {
3672 if ((!(vports[i]->fc_flag &
3673 FC_VPORT_CVL_RCVD)) &&
3674 (vports[i]->port_state > LPFC_FDISC)) {
3675 active_vlink_present = 1;
3676 break;
3677 }
3678 }
3679 lpfc_destroy_vport_work_array(phba, vports);
3680 }
3681
3682 if (active_vlink_present) {
3683 /*
3684 * If there are other active VLinks present,
3685 * re-instantiate the Vlink using FDISC.
3686 */
6669f9bb 3687 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
fc2b989b 3688 shost = lpfc_shost_from_vport(vport);
6669f9bb
JS		 3689 spin_lock_irq(shost->host_lock);
3690 ndlp->nlp_flag |= NLP_DELAY_TMO;
3691 spin_unlock_irq(shost->host_lock);
695a814e
JS		 3692 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3693 vport->port_state = LPFC_FDISC;
3694 } else {
ecfd03c6
JS		 3695 /*
3696 * Otherwise, we request port to rediscover
3697 * the entire FCF table for a fast recovery
3698 * from possible case that the current FCF
0c9ab6f5
JS		 3699 * is no longer valid if we are not already
3700 * in the FCF failover process.
ecfd03c6 3701 */
fc2b989b 3702 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3703 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
fc2b989b
JS		 3704 spin_unlock_irq(&phba->hbalock);
3705 break;
3706 }
3707 /* Mark the fast failover process in progress */
0c9ab6f5 3708 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
fc2b989b 3709 spin_unlock_irq(&phba->hbalock);
0c9ab6f5
JS		 3710 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3711 LOG_DISCOVERY,
a93ff37a 3712 "2773 Start FCF failover per CVL, "
70f3c073 3713 "evt_tag:x%x\n", acqe_fip->event_tag);
ecfd03c6 3714 rc = lpfc_sli4_redisc_fcf_table(phba);
fc2b989b 3715 if (rc) {
0c9ab6f5
JS		 3716 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3717 LOG_DISCOVERY,
3718 "2774 Issue FCF rediscover "
3719 "mabilbox command failed, "
3720 "through to CVL event\n");
fc2b989b 3721 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3722 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
fc2b989b 3723 spin_unlock_irq(&phba->hbalock);
ecfd03c6
JS		 3724 /*
3725 * Last resort will be re-try on the
3726 * the current registered FCF entry.
3727 */
3728 lpfc_retry_pport_discovery(phba);
38b92ef8
JS		 3729 } else
3730 /*
3731 * Reset FCF roundrobin bmask for new
3732 * discovery.
3733 */
7d791df7 3734 lpfc_sli4_clear_fcf_rr_bmask(phba);
6669f9bb
JS		 3735 }
3736 break;
da0436e9
JS		 3737 default:
3738 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3739 "0288 Unknown FCoE event type 0x%x event tag "
70f3c073 3740 "0x%x\n", event_type, acqe_fip->event_tag);
da0436e9
JS		 3741 break;
3742 }
3743}
3744
3745/**
3746 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3747 * @phba: pointer to lpfc hba data structure.
3748 * @acqe_link: pointer to the async dcbx completion queue entry.
3749 *
3750 * This routine is to handle the SLI4 asynchronous dcbx event.
3751 **/
3752static void
3753lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3754 struct lpfc_acqe_dcbx *acqe_dcbx)
3755{
4d9ab994 3756 phba->fc_eventTag = acqe_dcbx->event_tag;
da0436e9
JS		 3757 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3758 "0290 The SLI4 DCBX asynchronous event is not "
3759 "handled yet\n");
3760}
3761
b19a061a
JS		 3762/**
3763 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3764 * @phba: pointer to lpfc hba data structure.
3765 * @acqe_link: pointer to the async grp5 completion queue entry.
3766 *
3767 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3768 * is an asynchronous notified of a logical link speed change. The Port
3769 * reports the logical link speed in units of 10Mbps.
3770 **/
3771static void
3772lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
3773 struct lpfc_acqe_grp5 *acqe_grp5)
3774{
3775 uint16_t prev_ll_spd;
3776
3777 phba->fc_eventTag = acqe_grp5->event_tag;
3778 phba->fcoe_eventtag = acqe_grp5->event_tag;
3779 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
3780 phba->sli4_hba.link_state.logical_speed =
3781 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
3782 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3783 "2789 GRP5 Async Event: Updating logical link speed "
3784 "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
3785 (phba->sli4_hba.link_state.logical_speed*10));
3786}
3787
da0436e9
JS		 3788/**
3789 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3790 * @phba: pointer to lpfc hba data structure.
3791 *
3792 * This routine is invoked by the worker thread to process all the pending
3793 * SLI4 asynchronous events.
3794 **/
3795void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3796{
3797 struct lpfc_cq_event *cq_event;
3798
3799 /* First, declare the async event has been handled */
3800 spin_lock_irq(&phba->hbalock);
3801 phba->hba_flag &= ~ASYNC_EVENT;
3802 spin_unlock_irq(&phba->hbalock);
3803 /* Now, handle all the async events */
3804 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3805 /* Get the first event from the head of the event queue */
3806 spin_lock_irq(&phba->hbalock);
3807 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3808 cq_event, struct lpfc_cq_event, list);
3809 spin_unlock_irq(&phba->hbalock);
3810 /* Process the asynchronous event */
3811 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3812 case LPFC_TRAILER_CODE_LINK:
3813 lpfc_sli4_async_link_evt(phba,
3814 &cq_event->cqe.acqe_link);
3815 break;
3816 case LPFC_TRAILER_CODE_FCOE:
70f3c073 3817 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
da0436e9
JS		 3818 break;
3819 case LPFC_TRAILER_CODE_DCBX:
3820 lpfc_sli4_async_dcbx_evt(phba,
3821 &cq_event->cqe.acqe_dcbx);
3822 break;
b19a061a
JS		 3823 case LPFC_TRAILER_CODE_GRP5:
3824 lpfc_sli4_async_grp5_evt(phba,
3825 &cq_event->cqe.acqe_grp5);
3826 break;
70f3c073
JS		 3827 case LPFC_TRAILER_CODE_FC:
3828 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
3829 break;
3830 case LPFC_TRAILER_CODE_SLI:
3831 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
3832 break;
da0436e9
JS		 3833 default:
3834 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3835 "1804 Invalid asynchrous event code: "
3836 "x%x\n", bf_get(lpfc_trailer_code,
3837 &cq_event->cqe.mcqe_cmpl));
3838 break;
3839 }
3840 /* Free the completion event processed to the free pool */
3841 lpfc_sli4_cq_event_release(phba, cq_event);
3842 }
3843}
3844
ecfd03c6
JS		 3845/**
3846 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3847 * @phba: pointer to lpfc hba data structure.
3848 *
3849 * This routine is invoked by the worker thread to process FCF table
3850 * rediscovery pending completion event.
3851 **/
3852void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3853{
3854 int rc;
3855
3856 spin_lock_irq(&phba->hbalock);
3857 /* Clear FCF rediscovery timeout event */
3858 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3859 /* Clear driver fast failover FCF record flag */
3860 phba->fcf.failover_rec.flag = 0;
3861 /* Set state for FCF fast failover */
3862 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3863 spin_unlock_irq(&phba->hbalock);
3864
3865 /* Scan FCF table from the first entry to re-discover SAN */
0c9ab6f5 3866 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
a93ff37a 3867 "2777 Start post-quiescent FCF table scan\n");
0c9ab6f5 3868 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
ecfd03c6 3869 if (rc)
0c9ab6f5
JS		 3870 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3871 "2747 Issue FCF scan read FCF mailbox "
3872 "command failed 0x%x\n", rc);
ecfd03c6
JS		 3873}
3874
da0436e9
JS		 3875/**
3876 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3877 * @phba: pointer to lpfc hba data structure.
3878 * @dev_grp: The HBA PCI-Device group number.
3879 *
3880 * This routine is invoked to set up the per HBA PCI-Device group function
3881 * API jump table entries.
3882 *
3883 * Return: 0 if success, otherwise -ENODEV
3884 **/
3885int
3886lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3887{
3888 int rc;
3889
3890 /* Set up lpfc PCI-device group */
3891 phba->pci_dev_grp = dev_grp;
3892
3893 /* The LPFC_PCI_DEV_OC uses SLI4 */
3894 if (dev_grp == LPFC_PCI_DEV_OC)
3895 phba->sli_rev = LPFC_SLI_REV4;
3896
3897 /* Set up device INIT API function jump table */
3898 rc = lpfc_init_api_table_setup(phba, dev_grp);
3899 if (rc)
3900 return -ENODEV;
3901 /* Set up SCSI API function jump table */
3902 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3903 if (rc)
3904 return -ENODEV;
3905 /* Set up SLI API function jump table */
3906 rc = lpfc_sli_api_table_setup(phba, dev_grp);
3907 if (rc)
3908 return -ENODEV;
3909 /* Set up MBOX API function jump table */
3910 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3911 if (rc)
3912 return -ENODEV;
3913
3914 return 0;
5b75da2f
JS		 3915}
3916
3917/**
3621a710 3918 * lpfc_log_intr_mode - Log the active interrupt mode
5b75da2f
JS		 3919 * @phba: pointer to lpfc hba data structure.
3920 * @intr_mode: active interrupt mode adopted.
3921 *
3922 * This routine it invoked to log the currently used active interrupt mode
3923 * to the device.
3772a991
JS		 3924 **/
3925static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5b75da2f
JS		 3926{
3927 switch (intr_mode) {
3928 case 0:
3929 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3930 "0470 Enable INTx interrupt mode.\n");
3931 break;
3932 case 1:
3933 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3934 "0481 Enabled MSI interrupt mode.\n");
3935 break;
3936 case 2:
3937 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3938 "0480 Enabled MSI-X interrupt mode.\n");
3939 break;
3940 default:
3941 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3942 "0482 Illegal interrupt mode.\n");
3943 break;
3944 }
3945 return;
3946}
3947
5b75da2f 3948/**
3772a991 3949 * lpfc_enable_pci_dev - Enable a generic PCI device.
5b75da2f
JS		 3950 * @phba: pointer to lpfc hba data structure.
3951 *
3772a991
JS		 3952 * This routine is invoked to enable the PCI device that is common to all
3953 * PCI devices.
5b75da2f
JS		 3954 *
3955 * Return codes
af901ca1 3956 * 0 - successful
3772a991 3957 * other values - error
5b75da2f 3958 **/
3772a991
JS		 3959static int
3960lpfc_enable_pci_dev(struct lpfc_hba *phba)
5b75da2f 3961{
3772a991 3962 struct pci_dev *pdev;
079b5c91 3963 int bars = 0;
5b75da2f 3964
3772a991
JS		 3965 /* Obtain PCI device reference */
3966 if (!phba->pcidev)
3967 goto out_error;
3968 else
3969 pdev = phba->pcidev;
3970 /* Select PCI BARs */
3971 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3972 /* Enable PCI device */
3973 if (pci_enable_device_mem(pdev))
3974 goto out_error;
3975 /* Request PCI resource for the device */
3976 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3977 goto out_disable_device;
3978 /* Set up device as PCI master and save state for EEH */
3979 pci_set_master(pdev);
3980 pci_try_set_mwi(pdev);
3981 pci_save_state(pdev);
5b75da2f 3982
0558056c
JS		 3983 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
3984 if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
3985 pdev->needs_freset = 1;
3986
3772a991 3987 return 0;
5b75da2f 3988
3772a991
JS		 3989out_disable_device:
3990 pci_disable_device(pdev);
3991out_error:
079b5c91
JS		 3992 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3993 "1401 Failed to enable pci device, bars:x%x\n", bars);
3772a991 3994 return -ENODEV;
5b75da2f
JS		 3995}
3996
3997/**
3772a991 3998 * lpfc_disable_pci_dev - Disable a generic PCI device.
5b75da2f
JS		 3999 * @phba: pointer to lpfc hba data structure.
4000 *
3772a991
JS		 4001 * This routine is invoked to disable the PCI device that is common to all
4002 * PCI devices.
5b75da2f
JS		 4003 **/
4004static void
3772a991 4005lpfc_disable_pci_dev(struct lpfc_hba *phba)
5b75da2f 4006{
3772a991
JS		 4007 struct pci_dev *pdev;
4008 int bars;
5b75da2f 4009
3772a991
JS		 4010 /* Obtain PCI device reference */
4011 if (!phba->pcidev)
4012 return;
4013 else
4014 pdev = phba->pcidev;
4015 /* Select PCI BARs */
4016 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4017 /* Release PCI resource and disable PCI device */
4018 pci_release_selected_regions(pdev, bars);
4019 pci_disable_device(pdev);
4020 /* Null out PCI private reference to driver */
4021 pci_set_drvdata(pdev, NULL);
5b75da2f
JS		 4022
4023 return;
4024}
4025
e59058c4 4026/**
3772a991
JS		 4027 * lpfc_reset_hba - Reset a hba
4028 * @phba: pointer to lpfc hba data structure.
e59058c4 4029 *
3772a991
JS		 4030 * This routine is invoked to reset a hba device. It brings the HBA
4031 * offline, performs a board restart, and then brings the board back
4032 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4033 * on outstanding mailbox commands.
e59058c4 4034 **/
3772a991
JS		 4035void
4036lpfc_reset_hba(struct lpfc_hba *phba)
dea3101e 4037{
3772a991
JS		 4038 /* If resets are disabled then set error state and return. */
4039 if (!phba->cfg_enable_hba_reset) {
4040 phba->link_state = LPFC_HBA_ERROR;
4041 return;
4042 }
4043 lpfc_offline_prep(phba);
4044 lpfc_offline(phba);
4045 lpfc_sli_brdrestart(phba);
4046 lpfc_online(phba);
4047 lpfc_unblock_mgmt_io(phba);
4048}
dea3101e 4049
0a96e975
JS		 4050/**
4051 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4052 * @phba: pointer to lpfc hba data structure.
4053 *
4054 * This function enables the PCI SR-IOV virtual functions to a physical
4055 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4056 * enable the number of virtual functions to the physical function. As
4057 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4058 * API call does not considered as an error condition for most of the device.
4059 **/
4060uint16_t
4061lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4062{
4063 struct pci_dev *pdev = phba->pcidev;
4064 uint16_t nr_virtfn;
4065 int pos;
4066
0a96e975
JS		 4067 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4068 if (pos == 0)
4069 return 0;
4070
4071 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4072 return nr_virtfn;
4073}
4074
912e3acd
JS		 4075/**
4076 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4077 * @phba: pointer to lpfc hba data structure.
4078 * @nr_vfn: number of virtual functions to be enabled.
4079 *
4080 * This function enables the PCI SR-IOV virtual functions to a physical
4081 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4082 * enable the number of virtual functions to the physical function. As
4083 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4084 * API call does not considered as an error condition for most of the device.
4085 **/
4086int
4087lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4088{
4089 struct pci_dev *pdev = phba->pcidev;
0a96e975 4090 uint16_t max_nr_vfn;
912e3acd
JS		 4091 int rc;
4092
0a96e975
JS		 4093 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4094 if (nr_vfn > max_nr_vfn) {
4095 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4096 "3057 Requested vfs (%d) greater than "
4097 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4098 return -EINVAL;
4099 }
4100
912e3acd
JS		 4101 rc = pci_enable_sriov(pdev, nr_vfn);
4102 if (rc) {
4103 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4104 "2806 Failed to enable sriov on this device "
4105 "with vfn number nr_vf:%d, rc:%d\n",
4106 nr_vfn, rc);
4107 } else
4108 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4109 "2807 Successful enable sriov on this device "
4110 "with vfn number nr_vf:%d\n", nr_vfn);
4111 return rc;
4112}
4113
3772a991
JS		 4114/**
4115 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4116 * @phba: pointer to lpfc hba data structure.
4117 *
4118 * This routine is invoked to set up the driver internal resources specific to
4119 * support the SLI-3 HBA device it attached to.
4120 *
4121 * Return codes
af901ca1 4122 * 0 - successful
3772a991
JS		 4123 * other values - error
4124 **/
4125static int
4126lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4127{
4128 struct lpfc_sli *psli;
912e3acd 4129 int rc;
dea3101e 4130
2e0fef85 4131 /*
3772a991 4132 * Initialize timers used by driver
2e0fef85 4133 */
dea3101e 4134
3772a991 4135 /* Heartbeat timer */
858c9f6c
JS		 4136 init_timer(&phba->hb_tmofunc);
4137 phba->hb_tmofunc.function = lpfc_hb_timeout;
4138 phba->hb_tmofunc.data = (unsigned long)phba;
4139
dea3101e 4140 psli = &phba->sli;
3772a991 4141 /* MBOX heartbeat timer */
dea3101e 4142 init_timer(&psli->mbox_tmo);
4143 psli->mbox_tmo.function = lpfc_mbox_timeout;
2e0fef85 4144 psli->mbox_tmo.data = (unsigned long) phba;
3772a991 4145 /* FCP polling mode timer */
875fbdfe
JSEC		 4146 init_timer(&phba->fcp_poll_timer);
4147 phba->fcp_poll_timer.function = lpfc_poll_timeout;
2e0fef85 4148 phba->fcp_poll_timer.data = (unsigned long) phba;
3772a991 4149 /* Fabric block timer */
92d7f7b0
JS		 4150 init_timer(&phba->fabric_block_timer);
4151 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4152 phba->fabric_block_timer.data = (unsigned long) phba;
3772a991 4153 /* EA polling mode timer */
9399627f
JS		 4154 init_timer(&phba->eratt_poll);
4155 phba->eratt_poll.function = lpfc_poll_eratt;
4156 phba->eratt_poll.data = (unsigned long) phba;
dea3101e 4157
3772a991
JS		 4158 /* Host attention work mask setup */
4159 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4160 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
dea3101e 4161
3772a991
JS		 4162 /* Get all the module params for configuring this host */
4163 lpfc_get_cfgparam(phba);
49198b37
JS		 4164 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4165 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4166 /* check for menlo minimum sg count */
4167 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4168 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4169 }
4170
dea3101e 4171 /*
3772a991
JS		 4172 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4173 * used to create the sg_dma_buf_pool must be dynamically calculated.
4174 * 2 segments are added since the IOCB needs a command and response bde.
dea3101e 4175 */
3772a991
JS		 4176 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4177 sizeof(struct fcp_rsp) +
4178 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4179
4180 if (phba->cfg_enable_bg) {
4181 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4182 phba->cfg_sg_dma_buf_size +=
4183 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
901a920f 4184 }
dea3101e 4185
3772a991
JS		 4186 /* Also reinitialize the host templates with new values. */
4187 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4188 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
dea3101e 4189
3772a991
JS		 4190 phba->max_vpi = LPFC_MAX_VPI;
4191 /* This will be set to correct value after config_port mbox */
4192 phba->max_vports = 0;
dea3101e 4193
3772a991
JS		 4194 /*
4195 * Initialize the SLI Layer to run with lpfc HBAs.
4196 */
4197 lpfc_sli_setup(phba);
4198 lpfc_sli_queue_setup(phba);
ed957684 4199
3772a991
JS		 4200 /* Allocate device driver memory */
4201 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4202 return -ENOMEM;
51ef4c26 4203
912e3acd
JS		 4204 /*
4205 * Enable sr-iov virtual functions if supported and configured
4206 * through the module parameter.
4207 */
4208 if (phba->cfg_sriov_nr_virtfn > 0) {
4209 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4210 phba->cfg_sriov_nr_virtfn);
4211 if (rc) {
4212 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4213 "2808 Requested number of SR-IOV "
4214 "virtual functions (%d) is not "
4215 "supported\n",
4216 phba->cfg_sriov_nr_virtfn);
4217 phba->cfg_sriov_nr_virtfn = 0;
4218 }
4219 }
4220
3772a991
JS		 4221 return 0;
4222}
ed957684 4223
3772a991
JS		 4224/**
4225 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4226 * @phba: pointer to lpfc hba data structure.
4227 *
4228 * This routine is invoked to unset the driver internal resources set up
4229 * specific for supporting the SLI-3 HBA device it attached to.
4230 **/
4231static void
4232lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4233{
4234 /* Free device driver memory allocated */
4235 lpfc_mem_free_all(phba);
3163f725 4236
3772a991
JS		 4237 return;
4238}
dea3101e 4239
3772a991 4240/**
da0436e9 4241 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3772a991
JS		 4242 * @phba: pointer to lpfc hba data structure.
4243 *
da0436e9
JS		 4244 * This routine is invoked to set up the driver internal resources specific to
4245 * support the SLI-4 HBA device it attached to.
3772a991
JS		 4246 *
4247 * Return codes
af901ca1 4248 * 0 - successful
da0436e9 4249 * other values - error
3772a991
JS		 4250 **/
4251static int
da0436e9 4252lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3772a991 4253{
da0436e9 4254 struct lpfc_sli *psli;
28baac74
JS		 4255 LPFC_MBOXQ_t *mboxq;
4256 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
4257 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4258 struct lpfc_mqe *mqe;
085c647c 4259 int longs, sli_family;
da0436e9
JS		 4260
4261 /* Before proceed, wait for POST done and device ready */
4262 rc = lpfc_sli4_post_status_check(phba);
4263 if (rc)
4264 return -ENODEV;
4265
3772a991 4266 /*
da0436e9 4267 * Initialize timers used by driver
3772a991 4268 */
3772a991 4269
da0436e9
JS		 4270 /* Heartbeat timer */
4271 init_timer(&phba->hb_tmofunc);
4272 phba->hb_tmofunc.function = lpfc_hb_timeout;
4273 phba->hb_tmofunc.data = (unsigned long)phba;
19ca7609
JS		 4274 init_timer(&phba->rrq_tmr);
4275 phba->rrq_tmr.function = lpfc_rrq_timeout;
4276 phba->rrq_tmr.data = (unsigned long)phba;
3772a991 4277
da0436e9
JS		 4278 psli = &phba->sli;
4279 /* MBOX heartbeat timer */
4280 init_timer(&psli->mbox_tmo);
4281 psli->mbox_tmo.function = lpfc_mbox_timeout;
4282 psli->mbox_tmo.data = (unsigned long) phba;
4283 /* Fabric block timer */
4284 init_timer(&phba->fabric_block_timer);
4285 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4286 phba->fabric_block_timer.data = (unsigned long) phba;
4287 /* EA polling mode timer */
4288 init_timer(&phba->eratt_poll);
4289 phba->eratt_poll.function = lpfc_poll_eratt;
4290 phba->eratt_poll.data = (unsigned long) phba;
ecfd03c6
JS		 4291 /* FCF rediscover timer */
4292 init_timer(&phba->fcf.redisc_wait);
4293 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4294 phba->fcf.redisc_wait.data = (unsigned long)phba;
4295
7ad20aa9
JS		 4296 /*
4297 * Control structure for handling external multi-buffer mailbox
4298 * command pass-through.
4299 */
4300 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
4301 sizeof(struct lpfc_mbox_ext_buf_ctx));
4302 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4303
da0436e9
JS		 4304 /*
4305 * We need to do a READ_CONFIG mailbox command here before
4306 * calling lpfc_get_cfgparam. For VFs this will report the
4307 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4308 * All of the resources allocated
4309 * for this Port are tied to these values.
4310 */
4311 /* Get all the module params for configuring this host */
4312 lpfc_get_cfgparam(phba);
4313 phba->max_vpi = LPFC_MAX_VPI;
4314 /* This will be set to correct value after the read_config mbox */
4315 phba->max_vports = 0;
3772a991 4316
da0436e9
JS		 4317 /* Program the default value of vlan_id and fc_map */
4318 phba->valid_vlan = 0;
4319 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4320 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4321 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
3772a991 4322
da0436e9
JS		 4323 /*
4324 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4325 * used to create the sg_dma_buf_pool must be dynamically calculated.
4326 * 2 segments are added since the IOCB needs a command and response bde.
4327 * To insure that the scsi sgl does not cross a 4k page boundary only
28baac74 4328 * sgl sizes of must be a power of 2.
da0436e9 4329 */
28baac74
JS		 4330 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4331 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
085c647c
JS		 4332
4333 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
4334 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4335 switch (sli_family) {
4336 case LPFC_SLI_INTF_FAMILY_BE2:
4337 case LPFC_SLI_INTF_FAMILY_BE3:
4338 /* There is a single hint for BE - 2 pages per BPL. */
4339 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
4340 LPFC_SLI_INTF_SLI_HINT1_1)
4341 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4342 break;
4343 case LPFC_SLI_INTF_FAMILY_LNCR_A0:
4344 case LPFC_SLI_INTF_FAMILY_LNCR_B0:
4345 default:
4346 break;
4347 }
28baac74
JS		 4348 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4349 dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4350 dma_buf_size = dma_buf_size << 1)
4351 ;
4352 if (dma_buf_size == max_buf_size)
4353 phba->cfg_sg_seg_cnt = (dma_buf_size -
4354 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4355 (2 * sizeof(struct sli4_sge))) /
4356 sizeof(struct sli4_sge);
4357 phba->cfg_sg_dma_buf_size = dma_buf_size;
3772a991 4358
da0436e9
JS		 4359 /* Initialize buffer queue management fields */
4360 hbq_count = lpfc_sli_hbq_count();
4361 for (i = 0; i < hbq_count; ++i)
4362 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4363 INIT_LIST_HEAD(&phba->rb_pend_list);
4364 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4365 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
3772a991 4366
da0436e9
JS		 4367 /*
4368 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4369 */
4370 /* Initialize the Abort scsi buffer list used by driver */
4371 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4372 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4373 /* This abort list used by worker thread */
4374 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
3772a991 4375
da0436e9 4376 /*
6d368e53 4377 * Initialize driver internal slow-path work queues
da0436e9 4378 */
3772a991 4379
da0436e9
JS		 4380 /* Driver internel slow-path CQ Event pool */
4381 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4382 /* Response IOCB work queue list */
45ed1190 4383 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
da0436e9
JS		 4384 /* Asynchronous event CQ Event work queue list */
4385 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4386 /* Fast-path XRI aborted CQ Event work queue list */
4387 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4388 /* Slow-path XRI aborted CQ Event work queue list */
4389 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4390 /* Receive queue CQ Event work queue list */
4391 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4392
6d368e53
JS		 4393 /* Initialize extent block lists. */
4394 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
4395 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
4396 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
4397 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
4398
da0436e9
JS		 4399 /* Initialize the driver internal SLI layer lists. */
4400 lpfc_sli_setup(phba);
4401 lpfc_sli_queue_setup(phba);
3772a991 4402
da0436e9
JS		 4403 /* Allocate device driver memory */
4404 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4405 if (rc)
4406 return -ENOMEM;
4407
2fcee4bf
JS		 4408 /* IF Type 2 ports get initialized now. */
4409 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4410 LPFC_SLI_INTF_IF_TYPE_2) {
4411 rc = lpfc_pci_function_reset(phba);
4412 if (unlikely(rc))
4413 return -ENODEV;
4414 }
4415
da0436e9
JS		 4416 /* Create the bootstrap mailbox command */
4417 rc = lpfc_create_bootstrap_mbox(phba);
4418 if (unlikely(rc))
4419 goto out_free_mem;
4420
4421 /* Set up the host's endian order with the device. */
4422 rc = lpfc_setup_endian_order(phba);
4423 if (unlikely(rc))
4424 goto out_free_bsmbx;
4425
4426 /* Set up the hba's configuration parameters. */
4427 rc = lpfc_sli4_read_config(phba);
4428 if (unlikely(rc))
4429 goto out_free_bsmbx;
4430
2fcee4bf
JS		 4431 /* IF Type 0 ports get initialized now. */
4432 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4433 LPFC_SLI_INTF_IF_TYPE_0) {
4434 rc = lpfc_pci_function_reset(phba);
4435 if (unlikely(rc))
4436 goto out_free_bsmbx;
4437 }
da0436e9 4438
cb5172ea
JS		 4439 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4440 GFP_KERNEL);
4441 if (!mboxq) {
4442 rc = -ENOMEM;
4443 goto out_free_bsmbx;
4444 }
4445
fedd3b7b 4446 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
cb5172ea
JS		 4447 lpfc_supported_pages(mboxq);
4448 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
fedd3b7b
JS		 4449 if (!rc) {
4450 mqe = &mboxq->u.mqe;
4451 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4452 LPFC_MAX_SUPPORTED_PAGES);
4453 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4454 switch (pn_page[i]) {
4455 case LPFC_SLI4_PARAMETERS:
4456 phba->sli4_hba.pc_sli4_params.supported = 1;
4457 break;
4458 default:
4459 break;
4460 }
4461 }
4462 /* Read the port's SLI4 Parameters capabilities if supported. */
4463 if (phba->sli4_hba.pc_sli4_params.supported)
4464 rc = lpfc_pc_sli4_params_get(phba, mboxq);
4465 if (rc) {
4466 mempool_free(mboxq, phba->mbox_mem_pool);
4467 rc = -EIO;
4468 goto out_free_bsmbx;
cb5172ea
JS		 4469 }
4470 }
fedd3b7b
JS		 4471 /*
4472 * Get sli4 parameters that override parameters from Port capabilities.
6d368e53
JS		 4473 * If this call fails, it isn't critical unless the SLI4 parameters come
4474 * back in conflict.
fedd3b7b 4475 */
6d368e53
JS		 4476 rc = lpfc_get_sli4_parameters(phba, mboxq);
4477 if (rc) {
4478 if (phba->sli4_hba.extents_in_use &&
4479 phba->sli4_hba.rpi_hdrs_in_use) {
4480 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4481 "2999 Unsupported SLI4 Parameters "
4482 "Extents and RPI headers enabled.\n");
4483 goto out_free_bsmbx;
4484 }
4485 }
cb5172ea 4486 mempool_free(mboxq, phba->mbox_mem_pool);
da0436e9
JS		 4487 /* Create all the SLI4 queues */
4488 rc = lpfc_sli4_queue_create(phba);
4489 if (rc)
4490 goto out_free_bsmbx;
4491
4492 /* Create driver internal CQE event pool */
4493 rc = lpfc_sli4_cq_event_pool_create(phba);
4494 if (rc)
4495 goto out_destroy_queue;
4496
4497 /* Initialize and populate the iocb list per host */
4498 rc = lpfc_init_sgl_list(phba);
4499 if (rc) {
4500 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4501 "1400 Failed to initialize sgl list.\n");
4502 goto out_destroy_cq_event_pool;
4503 }
4504 rc = lpfc_init_active_sgl_array(phba);
4505 if (rc) {
4506 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4507 "1430 Failed to initialize sgl list.\n");
4508 goto out_free_sgl_list;
4509 }
da0436e9
JS		 4510 rc = lpfc_sli4_init_rpi_hdrs(phba);
4511 if (rc) {
4512 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4513 "1432 Failed to initialize rpi headers.\n");
4514 goto out_free_active_sgl;
4515 }
4516
a93ff37a 4517 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
0c9ab6f5
JS		 4518 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4519 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4520 GFP_KERNEL);
4521 if (!phba->fcf.fcf_rr_bmask) {
4522 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4523 "2759 Failed allocate memory for FCF round "
4524 "robin failover bmask\n");
0558056c 4525 rc = -ENOMEM;
0c9ab6f5
JS		 4526 goto out_remove_rpi_hdrs;
4527 }
4528
da0436e9
JS		 4529 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4530 phba->cfg_fcp_eq_count), GFP_KERNEL);
4531 if (!phba->sli4_hba.fcp_eq_hdl) {
4532 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4533 "2572 Failed allocate memory for fast-path "
4534 "per-EQ handle array\n");
0558056c 4535 rc = -ENOMEM;
0c9ab6f5 4536 goto out_free_fcf_rr_bmask;
da0436e9
JS		 4537 }
4538
4539 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4540 phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4541 if (!phba->sli4_hba.msix_entries) {
4542 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4543 "2573 Failed allocate memory for msi-x "
4544 "interrupt vector entries\n");
0558056c 4545 rc = -ENOMEM;
da0436e9
JS		 4546 goto out_free_fcp_eq_hdl;
4547 }
4548
912e3acd
JS		 4549 /*
4550 * Enable sr-iov virtual functions if supported and configured
4551 * through the module parameter.
4552 */
4553 if (phba->cfg_sriov_nr_virtfn > 0) {
4554 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4555 phba->cfg_sriov_nr_virtfn);
4556 if (rc) {
4557 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4558 "3020 Requested number of SR-IOV "
4559 "virtual functions (%d) is not "
4560 "supported\n",
4561 phba->cfg_sriov_nr_virtfn);
4562 phba->cfg_sriov_nr_virtfn = 0;
4563 }
4564 }
4565
5248a749 4566 return 0;
da0436e9
JS		 4567
4568out_free_fcp_eq_hdl:
4569 kfree(phba->sli4_hba.fcp_eq_hdl);
0c9ab6f5
JS		 4570out_free_fcf_rr_bmask:
4571 kfree(phba->fcf.fcf_rr_bmask);
da0436e9
JS		 4572out_remove_rpi_hdrs:
4573 lpfc_sli4_remove_rpi_hdrs(phba);
4574out_free_active_sgl:
4575 lpfc_free_active_sgl(phba);
4576out_free_sgl_list:
4577 lpfc_free_sgl_list(phba);
4578out_destroy_cq_event_pool:
4579 lpfc_sli4_cq_event_pool_destroy(phba);
4580out_destroy_queue:
4581 lpfc_sli4_queue_destroy(phba);
4582out_free_bsmbx:
4583 lpfc_destroy_bootstrap_mbox(phba);
4584out_free_mem:
4585 lpfc_mem_free(phba);
4586 return rc;
4587}
4588
4589/**
4590 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4591 * @phba: pointer to lpfc hba data structure.
4592 *
4593 * This routine is invoked to unset the driver internal resources set up
4594 * specific for supporting the SLI-4 HBA device it attached to.
4595 **/
4596static void
4597lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4598{
4599 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4600
da0436e9
JS		 4601 /* Free memory allocated for msi-x interrupt vector entries */
4602 kfree(phba->sli4_hba.msix_entries);
4603
4604 /* Free memory allocated for fast-path work queue handles */
4605 kfree(phba->sli4_hba.fcp_eq_hdl);
4606
4607 /* Free the allocated rpi headers. */
4608 lpfc_sli4_remove_rpi_hdrs(phba);
d11e31dd 4609 lpfc_sli4_remove_rpis(phba);
da0436e9 4610
0c9ab6f5
JS		 4611 /* Free eligible FCF index bmask */
4612 kfree(phba->fcf.fcf_rr_bmask);
4613
da0436e9
JS		 4614 /* Free the ELS sgl list */
4615 lpfc_free_active_sgl(phba);
4616 lpfc_free_sgl_list(phba);
4617
4618 /* Free the SCSI sgl management array */
4619 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4620
4621 /* Free the SLI4 queues */
4622 lpfc_sli4_queue_destroy(phba);
4623
4624 /* Free the completion queue EQ event pool */
4625 lpfc_sli4_cq_event_release_all(phba);
4626 lpfc_sli4_cq_event_pool_destroy(phba);
4627
6d368e53
JS		 4628 /* Release resource identifiers. */
4629 lpfc_sli4_dealloc_resource_identifiers(phba);
4630
da0436e9
JS		 4631 /* Free the bsmbx region. */
4632 lpfc_destroy_bootstrap_mbox(phba);
4633
4634 /* Free the SLI Layer memory with SLI4 HBAs */
4635 lpfc_mem_free_all(phba);
4636
4637 /* Free the current connect table */
4638 list_for_each_entry_safe(conn_entry, next_conn_entry,
4d9ab994
JS		 4639 &phba->fcf_conn_rec_list, list) {
4640 list_del_init(&conn_entry->list);
da0436e9 4641 kfree(conn_entry);
4d9ab994 4642 }
da0436e9
JS		 4643
4644 return;
4645}
4646
4647/**
25985edc 4648 * lpfc_init_api_table_setup - Set up init api function jump table
da0436e9
JS		 4649 * @phba: The hba struct for which this call is being executed.
4650 * @dev_grp: The HBA PCI-Device group number.
4651 *
4652 * This routine sets up the device INIT interface API function jump table
4653 * in @phba struct.
4654 *
4655 * Returns: 0 - success, -ENODEV - failure.
4656 **/
4657int
4658lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4659{
84d1b006
JS		 4660 phba->lpfc_hba_init_link = lpfc_hba_init_link;
4661 phba->lpfc_hba_down_link = lpfc_hba_down_link;
7f86059a 4662 phba->lpfc_selective_reset = lpfc_selective_reset;
da0436e9
JS		 4663 switch (dev_grp) {
4664 case LPFC_PCI_DEV_LP:
4665 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4666 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4667 phba->lpfc_stop_port = lpfc_stop_port_s3;
4668 break;
4669 case LPFC_PCI_DEV_OC:
4670 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4671 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4672 phba->lpfc_stop_port = lpfc_stop_port_s4;
4673 break;
4674 default:
4675 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4676 "1431 Invalid HBA PCI-device group: 0x%x\n",
4677 dev_grp);
4678 return -ENODEV;
4679 break;
4680 }
4681 return 0;
4682}
4683
4684/**
4685 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4686 * @phba: pointer to lpfc hba data structure.
4687 *
4688 * This routine is invoked to set up the driver internal resources before the
4689 * device specific resource setup to support the HBA device it attached to.
4690 *
4691 * Return codes
af901ca1 4692 * 0 - successful
da0436e9
JS		 4693 * other values - error
4694 **/
4695static int
4696lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4697{
4698 /*
4699 * Driver resources common to all SLI revisions
4700 */
4701 atomic_set(&phba->fast_event_count, 0);
4702 spin_lock_init(&phba->hbalock);
4703
4704 /* Initialize ndlp management spinlock */
4705 spin_lock_init(&phba->ndlp_lock);
4706
4707 INIT_LIST_HEAD(&phba->port_list);
4708 INIT_LIST_HEAD(&phba->work_list);
4709 init_waitqueue_head(&phba->wait_4_mlo_m_q);
4710
4711 /* Initialize the wait queue head for the kernel thread */
4712 init_waitqueue_head(&phba->work_waitq);
4713
4714 /* Initialize the scsi buffer list used by driver for scsi IO */
4715 spin_lock_init(&phba->scsi_buf_list_lock);
4716 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4717
4718 /* Initialize the fabric iocb list */
4719 INIT_LIST_HEAD(&phba->fabric_iocb_list);
4720
4721 /* Initialize list to save ELS buffers */
4722 INIT_LIST_HEAD(&phba->elsbuf);
4723
4724 /* Initialize FCF connection rec list */
4725 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4726
4727 return 0;
4728}
4729
4730/**
4731 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4732 * @phba: pointer to lpfc hba data structure.
4733 *
4734 * This routine is invoked to set up the driver internal resources after the
4735 * device specific resource setup to support the HBA device it attached to.
4736 *
4737 * Return codes
af901ca1 4738 * 0 - successful
da0436e9
JS		 4739 * other values - error
4740 **/
4741static int
4742lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4743{
4744 int error;
4745
4746 /* Startup the kernel thread for this host adapter. */
4747 phba->worker_thread = kthread_run(lpfc_do_work, phba,
4748 "lpfc_worker_%d", phba->brd_no);
4749 if (IS_ERR(phba->worker_thread)) {
4750 error = PTR_ERR(phba->worker_thread);
4751 return error;
3772a991
JS		 4752 }
4753
4754 return 0;
4755}
4756
4757/**
4758 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4759 * @phba: pointer to lpfc hba data structure.
4760 *
4761 * This routine is invoked to unset the driver internal resources set up after
4762 * the device specific resource setup for supporting the HBA device it
4763 * attached to.
4764 **/
4765static void
4766lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4767{
4768 /* Stop kernel worker thread */
4769 kthread_stop(phba->worker_thread);
4770}
4771
4772/**
4773 * lpfc_free_iocb_list - Free iocb list.
4774 * @phba: pointer to lpfc hba data structure.
4775 *
4776 * This routine is invoked to free the driver's IOCB list and memory.
4777 **/
4778static void
4779lpfc_free_iocb_list(struct lpfc_hba *phba)
4780{
4781 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4782
4783 spin_lock_irq(&phba->hbalock);
4784 list_for_each_entry_safe(iocbq_entry, iocbq_next,
4785 &phba->lpfc_iocb_list, list) {
4786 list_del(&iocbq_entry->list);
4787 kfree(iocbq_entry);
4788 phba->total_iocbq_bufs--;
98c9ea5c 4789 }
3772a991
JS		 4790 spin_unlock_irq(&phba->hbalock);
4791
4792 return;
4793}
4794
4795/**
4796 * lpfc_init_iocb_list - Allocate and initialize iocb list.
4797 * @phba: pointer to lpfc hba data structure.
4798 *
4799 * This routine is invoked to allocate and initizlize the driver's IOCB
4800 * list and set up the IOCB tag array accordingly.
4801 *
4802 * Return codes
af901ca1 4803 * 0 - successful
3772a991
JS		 4804 * other values - error
4805 **/
4806static int
4807lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4808{
4809 struct lpfc_iocbq *iocbq_entry = NULL;
4810 uint16_t iotag;
4811 int i;
dea3101e 4812
4813 /* Initialize and populate the iocb list per host. */
4814 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
3772a991 4815 for (i = 0; i < iocb_count; i++) {
dd00cc48 4816 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
dea3101e 4817 if (iocbq_entry == NULL) {
4818 printk(KERN_ERR "%s: only allocated %d iocbs of "
4819 "expected %d count. Unloading driver.\n",
cadbd4a5 4820 __func__, i, LPFC_IOCB_LIST_CNT);
dea3101e 4821 goto out_free_iocbq;
4822 }
4823
604a3e30
JB		 4824 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4825 if (iotag == 0) {
3772a991 4826 kfree(iocbq_entry);
604a3e30 4827 printk(KERN_ERR "%s: failed to allocate IOTAG. "
3772a991 4828 "Unloading driver.\n", __func__);
604a3e30
JB		 4829 goto out_free_iocbq;
4830 }
6d368e53 4831 iocbq_entry->sli4_lxritag = NO_XRI;
3772a991 4832 iocbq_entry->sli4_xritag = NO_XRI;
2e0fef85
JS		 4833
4834 spin_lock_irq(&phba->hbalock);
dea3101e 4835 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4836 phba->total_iocbq_bufs++;
2e0fef85 4837 spin_unlock_irq(&phba->hbalock);
dea3101e 4838 }
4839
3772a991 4840 return 0;
dea3101e 4841
3772a991
JS		 4842out_free_iocbq:
4843 lpfc_free_iocb_list(phba);
dea3101e 4844
3772a991
JS		 4845 return -ENOMEM;
4846}
5e9d9b82 4847
3772a991 4848/**
da0436e9
JS		 4849 * lpfc_free_sgl_list - Free sgl list.
4850 * @phba: pointer to lpfc hba data structure.
3772a991 4851 *
da0436e9 4852 * This routine is invoked to free the driver's sgl list and memory.
3772a991 4853 **/
da0436e9
JS		 4854static void
4855lpfc_free_sgl_list(struct lpfc_hba *phba)
3772a991 4856{
da0436e9
JS		 4857 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
4858 LIST_HEAD(sglq_list);
dea3101e 4859
da0436e9
JS		 4860 spin_lock_irq(&phba->hbalock);
4861 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
4862 spin_unlock_irq(&phba->hbalock);
dea3101e 4863
da0436e9
JS		 4864 list_for_each_entry_safe(sglq_entry, sglq_next,
4865 &sglq_list, list) {
4866 list_del(&sglq_entry->list);
4867 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
4868 kfree(sglq_entry);
4869 phba->sli4_hba.total_sglq_bufs--;
4870 }
da0436e9
JS		 4871 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4872}
92d7f7b0 4873
da0436e9
JS		 4874/**
4875 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4876 * @phba: pointer to lpfc hba data structure.
4877 *
4878 * This routine is invoked to allocate the driver's active sgl memory.
4879 * This array will hold the sglq_entry's for active IOs.
4880 **/
4881static int
4882lpfc_init_active_sgl_array(struct lpfc_hba *phba)
4883{
4884 int size;
4885 size = sizeof(struct lpfc_sglq *);
4886 size *= phba->sli4_hba.max_cfg_param.max_xri;
4887
4888 phba->sli4_hba.lpfc_sglq_active_list =
4889 kzalloc(size, GFP_KERNEL);
4890 if (!phba->sli4_hba.lpfc_sglq_active_list)
4891 return -ENOMEM;
4892 return 0;
3772a991
JS		 4893}
4894
4895/**
da0436e9 4896 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
3772a991
JS		 4897 * @phba: pointer to lpfc hba data structure.
4898 *
da0436e9
JS		 4899 * This routine is invoked to walk through the array of active sglq entries
4900 * and free all of the resources.
4901 * This is just a place holder for now.
3772a991
JS		 4902 **/
4903static void
da0436e9 4904lpfc_free_active_sgl(struct lpfc_hba *phba)
3772a991 4905{
da0436e9 4906 kfree(phba->sli4_hba.lpfc_sglq_active_list);
3772a991
JS		 4907}
4908
4909/**
da0436e9 4910 * lpfc_init_sgl_list - Allocate and initialize sgl list.
3772a991
JS		 4911 * @phba: pointer to lpfc hba data structure.
4912 *
da0436e9
JS		 4913 * This routine is invoked to allocate and initizlize the driver's sgl
4914 * list and set up the sgl xritag tag array accordingly.
3772a991
JS		 4915 *
4916 * Return codes
af901ca1 4917 * 0 - successful
da0436e9 4918 * other values - error
3772a991
JS		 4919 **/
4920static int
da0436e9 4921lpfc_init_sgl_list(struct lpfc_hba *phba)
3772a991 4922{
da0436e9
JS		 4923 struct lpfc_sglq *sglq_entry = NULL;
4924 int i;
4925 int els_xri_cnt;
4926
4927 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4928 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6d368e53 4929 "2400 ELS XRI count %d.\n",
da0436e9
JS		 4930 els_xri_cnt);
4931 /* Initialize and populate the sglq list per host/VF. */
4932 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4933 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4934
4935 /* Sanity check on XRI management */
4936 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4937 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4938 "2562 No room left for SCSI XRI allocation: "
4939 "max_xri=%d, els_xri=%d\n",
4940 phba->sli4_hba.max_cfg_param.max_xri,
4941 els_xri_cnt);
4942 return -ENOMEM;
4943 }
3772a991 4944
da0436e9
JS		 4945 /* Allocate memory for the ELS XRI management array */
4946 phba->sli4_hba.lpfc_els_sgl_array =
4947 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4948 GFP_KERNEL);
0ff10d46 4949
da0436e9
JS		 4950 if (!phba->sli4_hba.lpfc_els_sgl_array) {
4951 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4952 "2401 Failed to allocate memory for ELS "
4953 "XRI management array of size %d.\n",
4954 els_xri_cnt);
4955 return -ENOMEM;
4956 }
2e0fef85 4957
da0436e9
JS		 4958 /* Keep the SCSI XRI into the XRI management array */
4959 phba->sli4_hba.scsi_xri_max =
4960 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4961 phba->sli4_hba.scsi_xri_cnt = 0;
da0436e9
JS		 4962 phba->sli4_hba.lpfc_scsi_psb_array =
4963 kzalloc((sizeof(struct lpfc_scsi_buf *) *
4964 phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4965
4966 if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4967 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4968 "2563 Failed to allocate memory for SCSI "
4969 "XRI management array of size %d.\n",
4970 phba->sli4_hba.scsi_xri_max);
4971 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4972 return -ENOMEM;
4973 }
4974
4975 for (i = 0; i < els_xri_cnt; i++) {
4976 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4977 if (sglq_entry == NULL) {
4978 printk(KERN_ERR "%s: only allocated %d sgls of "
4979 "expected %d count. Unloading driver.\n",
4980 __func__, i, els_xri_cnt);
4981 goto out_free_mem;
4982 }
4983
da0436e9
JS		 4984 sglq_entry->buff_type = GEN_BUFF_TYPE;
4985 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4986 if (sglq_entry->virt == NULL) {
4987 kfree(sglq_entry);
4988 printk(KERN_ERR "%s: failed to allocate mbuf.\n"
4989 "Unloading driver.\n", __func__);
4990 goto out_free_mem;
4991 }
4992 sglq_entry->sgl = sglq_entry->virt;
4993 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4994
4995 /* The list order is used by later block SGL registraton */
4996 spin_lock_irq(&phba->hbalock);
0f65ff68 4997 sglq_entry->state = SGL_FREED;
da0436e9
JS		 4998 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
4999 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
5000 phba->sli4_hba.total_sglq_bufs++;
5001 spin_unlock_irq(&phba->hbalock);
5002 }
5003 return 0;
5004
5005out_free_mem:
5006 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
5007 lpfc_free_sgl_list(phba);
5008 return -ENOMEM;
5009}
5010
5011/**
5012 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5013 * @phba: pointer to lpfc hba data structure.
5014 *
5015 * This routine is invoked to post rpi header templates to the
88a2cfbb 5016 * port for those SLI4 ports that do not support extents. This routine
da0436e9 5017 * posts a PAGE_SIZE memory region to the port to hold up to
88a2cfbb
JS		 5018 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
5019 * and should be called only when interrupts are disabled.
da0436e9
JS		 5020 *
5021 * Return codes
af901ca1 5022 * 0 - successful
88a2cfbb 5023 * -ERROR - otherwise.
da0436e9
JS		 5024 **/
5025int
5026lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5027{
5028 int rc = 0;
da0436e9
JS		 5029 struct lpfc_rpi_hdr *rpi_hdr;
5030
5031 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
da0436e9 5032 /*
6d368e53
JS		 5033 * If the SLI4 port supports extents, posting the rpi header isn't
5034 * required. Set the expected maximum count and let the actual value
5035 * get set when extents are fully allocated.
da0436e9 5036 */
6d368e53
JS		 5037 if (!phba->sli4_hba.rpi_hdrs_in_use) {
5038 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
5039 return rc;
5040 }
5041 if (phba->sli4_hba.extents_in_use)
5042 return -EIO;
da0436e9
JS		 5043
5044 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5045 if (!rpi_hdr) {
5046 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5047 "0391 Error during rpi post operation\n");
5048 lpfc_sli4_remove_rpis(phba);
5049 rc = -ENODEV;
5050 }
5051
5052 return rc;
5053}
5054
5055/**
5056 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5057 * @phba: pointer to lpfc hba data structure.
5058 *
5059 * This routine is invoked to allocate a single 4KB memory region to
5060 * support rpis and stores them in the phba. This single region
5061 * provides support for up to 64 rpis. The region is used globally
5062 * by the device.
5063 *
5064 * Returns:
5065 * A valid rpi hdr on success.
5066 * A NULL pointer on any failure.
5067 **/
5068struct lpfc_rpi_hdr *
5069lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5070{
5071 uint16_t rpi_limit, curr_rpi_range;
5072 struct lpfc_dmabuf *dmabuf;
5073 struct lpfc_rpi_hdr *rpi_hdr;
9589b062 5074 uint32_t rpi_count;
da0436e9 5075
6d368e53
JS		 5076 /*
5077 * If the SLI4 port supports extents, posting the rpi header isn't
5078 * required. Set the expected maximum count and let the actual value
5079 * get set when extents are fully allocated.
5080 */
5081 if (!phba->sli4_hba.rpi_hdrs_in_use)
5082 return NULL;
5083 if (phba->sli4_hba.extents_in_use)
5084 return NULL;
5085
5086 /* The limit on the logical index is just the max_rpi count. */
da0436e9 5087 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
6d368e53 5088 phba->sli4_hba.max_cfg_param.max_rpi - 1;
da0436e9
JS		 5089
5090 spin_lock_irq(&phba->hbalock);
6d368e53
JS		 5091 /*
5092 * Establish the starting RPI in this header block. The starting
5093 * rpi is normalized to a zero base because the physical rpi is
5094 * port based.
5095 */
5096 curr_rpi_range = phba->sli4_hba.next_rpi -
5097 phba->sli4_hba.max_cfg_param.rpi_base;
da0436e9
JS		 5098 spin_unlock_irq(&phba->hbalock);
5099
5100 /*
5101 * The port has a limited number of rpis. The increment here
5102 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5103 * and to allow the full max_rpi range per port.
5104 */
5105 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
9589b062
JS		 5106 rpi_count = rpi_limit - curr_rpi_range;
5107 else
5108 rpi_count = LPFC_RPI_HDR_COUNT;
da0436e9 5109
6d368e53
JS		 5110 if (!rpi_count)
5111 return NULL;
da0436e9
JS		 5112 /*
5113 * First allocate the protocol header region for the port. The
5114 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5115 */
5116 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5117 if (!dmabuf)
5118 return NULL;
5119
5120 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5121 LPFC_HDR_TEMPLATE_SIZE,
5122 &dmabuf->phys,
5123 GFP_KERNEL);
5124 if (!dmabuf->virt) {
5125 rpi_hdr = NULL;
5126 goto err_free_dmabuf;
5127 }
5128
5129 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5130 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5131 rpi_hdr = NULL;
5132 goto err_free_coherent;
5133 }
5134
5135 /* Save the rpi header data for cleanup later. */
5136 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5137 if (!rpi_hdr)
5138 goto err_free_coherent;
5139
5140 rpi_hdr->dmabuf = dmabuf;
5141 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5142 rpi_hdr->page_count = 1;
5143 spin_lock_irq(&phba->hbalock);
6d368e53
JS		 5144
5145 /* The rpi_hdr stores the logical index only. */
5146 rpi_hdr->start_rpi = curr_rpi_range;
da0436e9
JS		 5147 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5148
5149 /*
6d368e53
JS		 5150 * The next_rpi stores the next logical module-64 rpi value used
5151 * to post physical rpis in subsequent rpi postings.
da0436e9 5152 */
9589b062 5153 phba->sli4_hba.next_rpi += rpi_count;
da0436e9
JS		 5154 spin_unlock_irq(&phba->hbalock);
5155 return rpi_hdr;
5156
5157 err_free_coherent:
5158 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5159 dmabuf->virt, dmabuf->phys);
5160 err_free_dmabuf:
5161 kfree(dmabuf);
5162 return NULL;
5163}
5164
5165/**
5166 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5167 * @phba: pointer to lpfc hba data structure.
5168 *
5169 * This routine is invoked to remove all memory resources allocated
6d368e53
JS		 5170 * to support rpis for SLI4 ports not supporting extents. This routine
5171 * presumes the caller has released all rpis consumed by fabric or port
5172 * logins and is prepared to have the header pages removed.
da0436e9
JS		 5173 **/
5174void
5175lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5176{
5177 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5178
6d368e53
JS		 5179 if (!phba->sli4_hba.rpi_hdrs_in_use)
5180 goto exit;
5181
da0436e9
JS		 5182 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5183 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5184 list_del(&rpi_hdr->list);
5185 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5186 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5187 kfree(rpi_hdr->dmabuf);
5188 kfree(rpi_hdr);
5189 }
6d368e53
JS		 5190 exit:
5191 /* There are no rpis available to the port now. */
5192 phba->sli4_hba.next_rpi = 0;
da0436e9
JS		 5193}
5194
5195/**
5196 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5197 * @pdev: pointer to pci device data structure.
5198 *
5199 * This routine is invoked to allocate the driver hba data structure for an
5200 * HBA device. If the allocation is successful, the phba reference to the
5201 * PCI device data structure is set.
5202 *
5203 * Return codes
af901ca1 5204 * pointer to @phba - successful
da0436e9
JS		 5205 * NULL - error
5206 **/
5207static struct lpfc_hba *
5208lpfc_hba_alloc(struct pci_dev *pdev)
5209{
5210 struct lpfc_hba *phba;
5211
5212 /* Allocate memory for HBA structure */
5213 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5214 if (!phba) {
e34ccdfe 5215 dev_err(&pdev->dev, "failed to allocate hba struct\n");
da0436e9
JS		 5216 return NULL;
5217 }
5218
5219 /* Set reference to PCI device in HBA structure */
5220 phba->pcidev = pdev;
5221
5222 /* Assign an unused board number */
5223 phba->brd_no = lpfc_get_instance();
5224 if (phba->brd_no < 0) {
5225 kfree(phba);
5226 return NULL;
5227 }
5228
4fede78f 5229 spin_lock_init(&phba->ct_ev_lock);
f1c3b0fc
JS		 5230 INIT_LIST_HEAD(&phba->ct_ev_waiters);
5231
da0436e9
JS		 5232 return phba;
5233}
5234
5235/**
5236 * lpfc_hba_free - Free driver hba data structure with a device.
5237 * @phba: pointer to lpfc hba data structure.
5238 *
5239 * This routine is invoked to free the driver hba data structure with an
5240 * HBA device.
5241 **/
5242static void
5243lpfc_hba_free(struct lpfc_hba *phba)
5244{
5245 /* Release the driver assigned board number */
5246 idr_remove(&lpfc_hba_index, phba->brd_no);
5247
5248 kfree(phba);
5249 return;
5250}
5251
5252/**
5253 * lpfc_create_shost - Create hba physical port with associated scsi host.
5254 * @phba: pointer to lpfc hba data structure.
5255 *
5256 * This routine is invoked to create HBA physical port and associate a SCSI
5257 * host with it.
5258 *
5259 * Return codes
af901ca1 5260 * 0 - successful
da0436e9
JS		 5261 * other values - error
5262 **/
5263static int
5264lpfc_create_shost(struct lpfc_hba *phba)
5265{
5266 struct lpfc_vport *vport;
5267 struct Scsi_Host *shost;
5268
5269 /* Initialize HBA FC structure */
5270 phba->fc_edtov = FF_DEF_EDTOV;
5271 phba->fc_ratov = FF_DEF_RATOV;
5272 phba->fc_altov = FF_DEF_ALTOV;
5273 phba->fc_arbtov = FF_DEF_ARBTOV;
5274
d7c47992 5275 atomic_set(&phba->sdev_cnt, 0);
da0436e9
JS		 5276 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5277 if (!vport)
5278 return -ENODEV;
5279
5280 shost = lpfc_shost_from_vport(vport);
5281 phba->pport = vport;
5282 lpfc_debugfs_initialize(vport);
5283 /* Put reference to SCSI host to driver's device private data */
5284 pci_set_drvdata(phba->pcidev, shost);
2e0fef85 5285
3772a991
JS		 5286 return 0;
5287}
db2378e0 5288
3772a991
JS		 5289/**
5290 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5291 * @phba: pointer to lpfc hba data structure.
5292 *
5293 * This routine is invoked to destroy HBA physical port and the associated
5294 * SCSI host.
5295 **/
5296static void
5297lpfc_destroy_shost(struct lpfc_hba *phba)
5298{
5299 struct lpfc_vport *vport = phba->pport;
5300
5301 /* Destroy physical port that associated with the SCSI host */
5302 destroy_port(vport);
5303
5304 return;
5305}
5306
5307/**
5308 * lpfc_setup_bg - Setup Block guard structures and debug areas.
5309 * @phba: pointer to lpfc hba data structure.
5310 * @shost: the shost to be used to detect Block guard settings.
5311 *
5312 * This routine sets up the local Block guard protocol settings for @shost.
5313 * This routine also allocates memory for debugging bg buffers.
5314 **/
5315static void
5316lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5317{
5318 int pagecnt = 10;
5319 if (lpfc_prot_mask && lpfc_prot_guard) {
5320 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5321 "1478 Registering BlockGuard with the "
5322 "SCSI layer\n");
5323 scsi_host_set_prot(shost, lpfc_prot_mask);
5324 scsi_host_set_guard(shost, lpfc_prot_guard);
5325 }
5326 if (!_dump_buf_data) {
5327 while (pagecnt) {
5328 spin_lock_init(&_dump_buf_lock);
5329 _dump_buf_data =
5330 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5331 if (_dump_buf_data) {
6a9c52cf
JS		 5332 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5333 "9043 BLKGRD: allocated %d pages for "
3772a991
JS		 5334 "_dump_buf_data at 0x%p\n",
5335 (1 << pagecnt), _dump_buf_data);
5336 _dump_buf_data_order = pagecnt;
5337 memset(_dump_buf_data, 0,
5338 ((1 << PAGE_SHIFT) << pagecnt));
5339 break;
5340 } else
5341 --pagecnt;
5342 }
5343 if (!_dump_buf_data_order)
6a9c52cf
JS		 5344 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5345 "9044 BLKGRD: ERROR unable to allocate "
3772a991
JS		 5346 "memory for hexdump\n");
5347 } else
6a9c52cf
JS		 5348 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5349 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
3772a991
JS		 5350 "\n", _dump_buf_data);
5351 if (!_dump_buf_dif) {
5352 while (pagecnt) {
5353 _dump_buf_dif =
5354 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5355 if (_dump_buf_dif) {
6a9c52cf
JS		 5356 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5357 "9046 BLKGRD: allocated %d pages for "
3772a991
JS		 5358 "_dump_buf_dif at 0x%p\n",
5359 (1 << pagecnt), _dump_buf_dif);
5360 _dump_buf_dif_order = pagecnt;
5361 memset(_dump_buf_dif, 0,
5362 ((1 << PAGE_SHIFT) << pagecnt));
5363 break;
5364 } else
5365 --pagecnt;
5366 }
5367 if (!_dump_buf_dif_order)
6a9c52cf
JS		 5368 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5369 "9047 BLKGRD: ERROR unable to allocate "
3772a991
JS		 5370 "memory for hexdump\n");
5371 } else
6a9c52cf
JS		 5372 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5373 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
3772a991
JS		 5374 _dump_buf_dif);
5375}
5376
5377/**
5378 * lpfc_post_init_setup - Perform necessary device post initialization setup.
5379 * @phba: pointer to lpfc hba data structure.
5380 *
5381 * This routine is invoked to perform all the necessary post initialization
5382 * setup for the device.
5383 **/
5384static void
5385lpfc_post_init_setup(struct lpfc_hba *phba)
5386{
5387 struct Scsi_Host *shost;
5388 struct lpfc_adapter_event_header adapter_event;
5389
5390 /* Get the default values for Model Name and Description */
5391 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5392
5393 /*
5394 * hba setup may have changed the hba_queue_depth so we need to
5395 * adjust the value of can_queue.
5396 */
5397 shost = pci_get_drvdata(phba->pcidev);
5398 shost->can_queue = phba->cfg_hba_queue_depth - 10;
5399 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5400 lpfc_setup_bg(phba, shost);
5401
5402 lpfc_host_attrib_init(shost);
5403
5404 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5405 spin_lock_irq(shost->host_lock);
5406 lpfc_poll_start_timer(phba);
5407 spin_unlock_irq(shost->host_lock);
5408 }
5409
5410 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5411 "0428 Perform SCSI scan\n");
5412 /* Send board arrival event to upper layer */
5413 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5414 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5415 fc_host_post_vendor_event(shost, fc_get_event_number(),
5416 sizeof(adapter_event),
5417 (char *) &adapter_event,
5418 LPFC_NL_VENDOR_ID);
5419 return;
5420}
5421
5422/**
5423 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5424 * @phba: pointer to lpfc hba data structure.
5425 *
5426 * This routine is invoked to set up the PCI device memory space for device
5427 * with SLI-3 interface spec.
5428 *
5429 * Return codes
af901ca1 5430 * 0 - successful
3772a991
JS		 5431 * other values - error
5432 **/
5433static int
5434lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5435{
5436 struct pci_dev *pdev;
5437 unsigned long bar0map_len, bar2map_len;
5438 int i, hbq_count;
5439 void *ptr;
5440 int error = -ENODEV;
5441
5442 /* Obtain PCI device reference */
5443 if (!phba->pcidev)
5444 return error;
5445 else
5446 pdev = phba->pcidev;
5447
5448 /* Set the device DMA mask size */
8e68597d
MR		 5449 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5450 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5451 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5452 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
3772a991 5453 return error;
8e68597d
MR		 5454 }
5455 }
3772a991
JS		 5456
5457 /* Get the bus address of Bar0 and Bar2 and the number of bytes
5458 * required by each mapping.
5459 */
5460 phba->pci_bar0_map = pci_resource_start(pdev, 0);
5461 bar0map_len = pci_resource_len(pdev, 0);
5462
5463 phba->pci_bar2_map = pci_resource_start(pdev, 2);
5464 bar2map_len = pci_resource_len(pdev, 2);
5465
5466 /* Map HBA SLIM to a kernel virtual address. */
5467 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5468 if (!phba->slim_memmap_p) {
5469 dev_printk(KERN_ERR, &pdev->dev,
5470 "ioremap failed for SLIM memory.\n");
5471 goto out;
5472 }
5473
5474 /* Map HBA Control Registers to a kernel virtual address. */
5475 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5476 if (!phba->ctrl_regs_memmap_p) {
5477 dev_printk(KERN_ERR, &pdev->dev,
5478 "ioremap failed for HBA control registers.\n");
5479 goto out_iounmap_slim;
5480 }
5481
5482 /* Allocate memory for SLI-2 structures */
5483 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5484 SLI2_SLIM_SIZE,
5485 &phba->slim2p.phys,
5486 GFP_KERNEL);
5487 if (!phba->slim2p.virt)
5488 goto out_iounmap;
5489
5490 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5491 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7a470277
JS		 5492 phba->mbox_ext = (phba->slim2p.virt +
5493 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
3772a991
JS		 5494 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5495 phba->IOCBs = (phba->slim2p.virt +
5496 offsetof(struct lpfc_sli2_slim, IOCBs));
5497
5498 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5499 lpfc_sli_hbq_size(),
5500 &phba->hbqslimp.phys,
5501 GFP_KERNEL);
5502 if (!phba->hbqslimp.virt)
5503 goto out_free_slim;
5504
5505 hbq_count = lpfc_sli_hbq_count();
5506 ptr = phba->hbqslimp.virt;
5507 for (i = 0; i < hbq_count; ++i) {
5508 phba->hbqs[i].hbq_virt = ptr;
5509 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5510 ptr += (lpfc_hbq_defs[i]->entry_count *
5511 sizeof(struct lpfc_hbq_entry));
5512 }
5513 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5514 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5515
5516 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5517
5518 INIT_LIST_HEAD(&phba->rb_pend_list);
5519
5520 phba->MBslimaddr = phba->slim_memmap_p;
5521 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5522 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5523 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5524 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5525
5526 return 0;
5527
5528out_free_slim:
5529 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5530 phba->slim2p.virt, phba->slim2p.phys);
5531out_iounmap:
5532 iounmap(phba->ctrl_regs_memmap_p);
5533out_iounmap_slim:
5534 iounmap(phba->slim_memmap_p);
5535out:
5536 return error;
5537}
5538
5539/**
5540 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5541 * @phba: pointer to lpfc hba data structure.
5542 *
5543 * This routine is invoked to unset the PCI device memory space for device
5544 * with SLI-3 interface spec.
5545 **/
5546static void
5547lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5548{
5549 struct pci_dev *pdev;
5550
5551 /* Obtain PCI device reference */
5552 if (!phba->pcidev)
5553 return;
5554 else
5555 pdev = phba->pcidev;
5556
5557 /* Free coherent DMA memory allocated */
5558 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5559 phba->hbqslimp.virt, phba->hbqslimp.phys);
5560 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5561 phba->slim2p.virt, phba->slim2p.phys);
5562
5563 /* I/O memory unmap */
5564 iounmap(phba->ctrl_regs_memmap_p);
5565 iounmap(phba->slim_memmap_p);
5566
5567 return;
5568}
5569
5570/**
da0436e9 5571 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
3772a991
JS		 5572 * @phba: pointer to lpfc hba data structure.
5573 *
da0436e9
JS		 5574 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5575 * done and check status.
3772a991 5576 *
da0436e9 5577 * Return 0 if successful, otherwise -ENODEV.
3772a991 5578 **/
da0436e9
JS		 5579int
5580lpfc_sli4_post_status_check(struct lpfc_hba *phba)
3772a991 5581{
2fcee4bf
JS		 5582 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
5583 struct lpfc_register reg_data;
5584 int i, port_error = 0;
5585 uint32_t if_type;
3772a991 5586
9940b97b
JS		 5587 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
5588 memset(&reg_data, 0, sizeof(reg_data));
2fcee4bf 5589 if (!phba->sli4_hba.PSMPHRregaddr)
da0436e9 5590 return -ENODEV;
3772a991 5591
da0436e9
JS		 5592 /* Wait up to 30 seconds for the SLI Port POST done and ready */
5593 for (i = 0; i < 3000; i++) {
9940b97b
JS		 5594 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
5595 &portsmphr_reg.word0) ||
5596 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
2fcee4bf 5597 /* Port has a fatal POST error, break out */
da0436e9
JS		 5598 port_error = -ENODEV;
5599 break;
5600 }
2fcee4bf
JS		 5601 if (LPFC_POST_STAGE_PORT_READY ==
5602 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
da0436e9 5603 break;
da0436e9 5604 msleep(10);
3772a991
JS		 5605 }
5606
2fcee4bf
JS		 5607 /*
5608 * If there was a port error during POST, then don't proceed with
5609 * other register reads as the data may not be valid. Just exit.
5610 */
5611 if (port_error) {
da0436e9 5612 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2fcee4bf
JS		 5613 "1408 Port Failed POST - portsmphr=0x%x, "
5614 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
5615 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
5616 portsmphr_reg.word0,
5617 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
5618 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
5619 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
5620 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
5621 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
5622 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
5623 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
5624 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
5625 } else {
28baac74 5626 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2fcee4bf
JS		 5627 "2534 Device Info: SLIFamily=0x%x, "
5628 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
5629 "SLIHint_2=0x%x, FT=0x%x\n",
28baac74
JS		 5630 bf_get(lpfc_sli_intf_sli_family,
5631 &phba->sli4_hba.sli_intf),
5632 bf_get(lpfc_sli_intf_slirev,
5633 &phba->sli4_hba.sli_intf),
085c647c
JS		 5634 bf_get(lpfc_sli_intf_if_type,
5635 &phba->sli4_hba.sli_intf),
5636 bf_get(lpfc_sli_intf_sli_hint1,
28baac74 5637 &phba->sli4_hba.sli_intf),
085c647c
JS		 5638 bf_get(lpfc_sli_intf_sli_hint2,
5639 &phba->sli4_hba.sli_intf),
5640 bf_get(lpfc_sli_intf_func_type,
28baac74 5641 &phba->sli4_hba.sli_intf));
2fcee4bf
JS		 5642 /*
5643 * Check for other Port errors during the initialization
5644 * process. Fail the load if the port did not come up
5645 * correctly.
5646 */
5647 if_type = bf_get(lpfc_sli_intf_if_type,
5648 &phba->sli4_hba.sli_intf);
5649 switch (if_type) {
5650 case LPFC_SLI_INTF_IF_TYPE_0:
5651 phba->sli4_hba.ue_mask_lo =
5652 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
5653 phba->sli4_hba.ue_mask_hi =
5654 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
5655 uerrlo_reg.word0 =
5656 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
5657 uerrhi_reg.word0 =
5658 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
5659 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5660 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5661 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5662 "1422 Unrecoverable Error "
5663 "Detected during POST "
5664 "uerr_lo_reg=0x%x, "
5665 "uerr_hi_reg=0x%x, "
5666 "ue_mask_lo_reg=0x%x, "
5667 "ue_mask_hi_reg=0x%x\n",
5668 uerrlo_reg.word0,
5669 uerrhi_reg.word0,
5670 phba->sli4_hba.ue_mask_lo,
5671 phba->sli4_hba.ue_mask_hi);
5672 port_error = -ENODEV;
5673 }
5674 break;
5675 case LPFC_SLI_INTF_IF_TYPE_2:
5676 /* Final checks. The port status should be clean. */
9940b97b
JS		 5677 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
5678 &reg_data.word0) ||
0558056c
JS		 5679 (bf_get(lpfc_sliport_status_err, &reg_data) &&
5680 !bf_get(lpfc_sliport_status_rn, &reg_data))) {
2fcee4bf
JS		 5681 phba->work_status[0] =
5682 readl(phba->sli4_hba.u.if_type2.
5683 ERR1regaddr);
5684 phba->work_status[1] =
5685 readl(phba->sli4_hba.u.if_type2.
5686 ERR2regaddr);
5687 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5688 "2888 Port Error Detected "
5689 "during POST: "
5690 "port status reg 0x%x, "
5691 "port_smphr reg 0x%x, "
5692 "error 1=0x%x, error 2=0x%x\n",
5693 reg_data.word0,
5694 portsmphr_reg.word0,
5695 phba->work_status[0],
5696 phba->work_status[1]);
5697 port_error = -ENODEV;
5698 }
5699 break;
5700 case LPFC_SLI_INTF_IF_TYPE_1:
5701 default:
5702 break;
5703 }
28baac74 5704 }
da0436e9
JS		 5705 return port_error;
5706}
3772a991 5707
da0436e9
JS		 5708/**
5709 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5710 * @phba: pointer to lpfc hba data structure.
2fcee4bf 5711 * @if_type: The SLI4 interface type getting configured.
da0436e9
JS		 5712 *
5713 * This routine is invoked to set up SLI4 BAR0 PCI config space register
5714 * memory map.
5715 **/
5716static void
2fcee4bf
JS		 5717lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
5718{
5719 switch (if_type) {
5720 case LPFC_SLI_INTF_IF_TYPE_0:
5721 phba->sli4_hba.u.if_type0.UERRLOregaddr =
5722 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
5723 phba->sli4_hba.u.if_type0.UERRHIregaddr =
5724 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
5725 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
5726 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
5727 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
5728 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
5729 phba->sli4_hba.SLIINTFregaddr =
5730 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5731 break;
5732 case LPFC_SLI_INTF_IF_TYPE_2:
5733 phba->sli4_hba.u.if_type2.ERR1regaddr =
88a2cfbb
JS		 5734 phba->sli4_hba.conf_regs_memmap_p +
5735 LPFC_CTL_PORT_ER1_OFFSET;
2fcee4bf 5736 phba->sli4_hba.u.if_type2.ERR2regaddr =
88a2cfbb
JS		 5737 phba->sli4_hba.conf_regs_memmap_p +
5738 LPFC_CTL_PORT_ER2_OFFSET;
2fcee4bf 5739 phba->sli4_hba.u.if_type2.CTRLregaddr =
88a2cfbb
JS		 5740 phba->sli4_hba.conf_regs_memmap_p +
5741 LPFC_CTL_PORT_CTL_OFFSET;
2fcee4bf 5742 phba->sli4_hba.u.if_type2.STATUSregaddr =
88a2cfbb
JS		 5743 phba->sli4_hba.conf_regs_memmap_p +
5744 LPFC_CTL_PORT_STA_OFFSET;
2fcee4bf
JS		 5745 phba->sli4_hba.SLIINTFregaddr =
5746 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5747 phba->sli4_hba.PSMPHRregaddr =
88a2cfbb
JS		 5748 phba->sli4_hba.conf_regs_memmap_p +
5749 LPFC_CTL_PORT_SEM_OFFSET;
2fcee4bf
JS		 5750 phba->sli4_hba.RQDBregaddr =
5751 phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
5752 phba->sli4_hba.WQDBregaddr =
5753 phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
5754 phba->sli4_hba.EQCQDBregaddr =
5755 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
5756 phba->sli4_hba.MQDBregaddr =
5757 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
5758 phba->sli4_hba.BMBXregaddr =
5759 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
5760 break;
5761 case LPFC_SLI_INTF_IF_TYPE_1:
5762 default:
5763 dev_printk(KERN_ERR, &phba->pcidev->dev,
5764 "FATAL - unsupported SLI4 interface type - %d\n",
5765 if_type);
5766 break;
5767 }
da0436e9 5768}
3772a991 5769
da0436e9
JS		 5770/**
5771 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5772 * @phba: pointer to lpfc hba data structure.
5773 *
5774 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5775 * memory map.
5776 **/
5777static void
5778lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5779{
2fcee4bf
JS		 5780 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5781 LPFC_SLIPORT_IF0_SMPHR;
da0436e9 5782 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 5783 LPFC_HST_ISR0;
da0436e9 5784 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 5785 LPFC_HST_IMR0;
da0436e9 5786 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 5787 LPFC_HST_ISCR0;
3772a991
JS		 5788}
5789
5790/**
da0436e9 5791 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
3772a991 5792 * @phba: pointer to lpfc hba data structure.
da0436e9 5793 * @vf: virtual function number
3772a991 5794 *
da0436e9
JS		 5795 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5796 * based on the given viftual function number, @vf.
5797 *
5798 * Return 0 if successful, otherwise -ENODEV.
3772a991 5799 **/
da0436e9
JS		 5800static int
5801lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
3772a991 5802{
da0436e9
JS		 5803 if (vf > LPFC_VIR_FUNC_MAX)
5804 return -ENODEV;
3772a991 5805
da0436e9
JS		 5806 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5807 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5808 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5809 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5810 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5811 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5812 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5813 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5814 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5815 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5816 return 0;
3772a991
JS		 5817}
5818
5819/**
da0436e9 5820 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
3772a991
JS		 5821 * @phba: pointer to lpfc hba data structure.
5822 *
da0436e9
JS		 5823 * This routine is invoked to create the bootstrap mailbox
5824 * region consistent with the SLI-4 interface spec. This
5825 * routine allocates all memory necessary to communicate
5826 * mailbox commands to the port and sets up all alignment
5827 * needs. No locks are expected to be held when calling
5828 * this routine.
3772a991
JS		 5829 *
5830 * Return codes
af901ca1 5831 * 0 - successful
d439d286 5832 * -ENOMEM - could not allocated memory.
da0436e9 5833 **/
3772a991 5834static int
da0436e9 5835lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
3772a991 5836{
da0436e9
JS		 5837 uint32_t bmbx_size;
5838 struct lpfc_dmabuf *dmabuf;
5839 struct dma_address *dma_address;
5840 uint32_t pa_addr;
5841 uint64_t phys_addr;
5842
5843 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5844 if (!dmabuf)
5845 return -ENOMEM;
3772a991 5846
da0436e9
JS		 5847 /*
5848 * The bootstrap mailbox region is comprised of 2 parts
5849 * plus an alignment restriction of 16 bytes.
5850 */
5851 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5852 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5853 bmbx_size,
5854 &dmabuf->phys,
5855 GFP_KERNEL);
5856 if (!dmabuf->virt) {
5857 kfree(dmabuf);
5858 return -ENOMEM;
3772a991 5859 }
da0436e9 5860 memset(dmabuf->virt, 0, bmbx_size);
3772a991 5861
da0436e9
JS		 5862 /*
5863 * Initialize the bootstrap mailbox pointers now so that the register
5864 * operations are simple later. The mailbox dma address is required
5865 * to be 16-byte aligned. Also align the virtual memory as each
5866 * maibox is copied into the bmbx mailbox region before issuing the
5867 * command to the port.
5868 */
5869 phba->sli4_hba.bmbx.dmabuf = dmabuf;
5870 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
5871
5872 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
5873 LPFC_ALIGN_16_BYTE);
5874 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
5875 LPFC_ALIGN_16_BYTE);
5876
5877 /*
5878 * Set the high and low physical addresses now. The SLI4 alignment
5879 * requirement is 16 bytes and the mailbox is posted to the port
5880 * as two 30-bit addresses. The other data is a bit marking whether
5881 * the 30-bit address is the high or low address.
5882 * Upcast bmbx aphys to 64bits so shift instruction compiles
5883 * clean on 32 bit machines.
5884 */
5885 dma_address = &phba->sli4_hba.bmbx.dma_address;
5886 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
5887 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
5888 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
5889 LPFC_BMBX_BIT1_ADDR_HI);
5890
5891 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
5892 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
5893 LPFC_BMBX_BIT1_ADDR_LO);
5894 return 0;
3772a991
JS		 5895}
5896
5897/**
da0436e9 5898 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
3772a991
JS		 5899 * @phba: pointer to lpfc hba data structure.
5900 *
da0436e9
JS		 5901 * This routine is invoked to teardown the bootstrap mailbox
5902 * region and release all host resources. This routine requires
5903 * the caller to ensure all mailbox commands recovered, no
5904 * additional mailbox comands are sent, and interrupts are disabled
5905 * before calling this routine.
5906 *
5907 **/
3772a991 5908static void
da0436e9 5909lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
3772a991 5910{
da0436e9
JS		 5911 dma_free_coherent(&phba->pcidev->dev,
5912 phba->sli4_hba.bmbx.bmbx_size,
5913 phba->sli4_hba.bmbx.dmabuf->virt,
5914 phba->sli4_hba.bmbx.dmabuf->phys);
5915
5916 kfree(phba->sli4_hba.bmbx.dmabuf);
5917 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
3772a991
JS		 5918}
5919
5920/**
da0436e9 5921 * lpfc_sli4_read_config - Get the config parameters.
3772a991
JS		 5922 * @phba: pointer to lpfc hba data structure.
5923 *
da0436e9
JS		 5924 * This routine is invoked to read the configuration parameters from the HBA.
5925 * The configuration parameters are used to set the base and maximum values
5926 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5927 * allocation for the port.
3772a991
JS		 5928 *
5929 * Return codes
af901ca1 5930 * 0 - successful
25985edc 5931 * -ENOMEM - No available memory
d439d286 5932 * -EIO - The mailbox failed to complete successfully.
3772a991 5933 **/
da0436e9
JS		 5934static int
5935lpfc_sli4_read_config(struct lpfc_hba *phba)
3772a991 5936{
da0436e9
JS		 5937 LPFC_MBOXQ_t *pmb;
5938 struct lpfc_mbx_read_config *rd_config;
912e3acd
JS		 5939 union lpfc_sli4_cfg_shdr *shdr;
5940 uint32_t shdr_status, shdr_add_status;
5941 struct lpfc_mbx_get_func_cfg *get_func_cfg;
5942 struct lpfc_rsrc_desc_fcfcoe *desc;
5943 uint32_t desc_count;
5944 int length, i, rc = 0;
3772a991 5945
da0436e9
JS		 5946 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5947 if (!pmb) {
5948 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5949 "2011 Unable to allocate memory for issuing "
5950 "SLI_CONFIG_SPECIAL mailbox command\n");
5951 return -ENOMEM;
3772a991
JS		 5952 }
5953
da0436e9 5954 lpfc_read_config(phba, pmb);
3772a991 5955
da0436e9
JS		 5956 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5957 if (rc != MBX_SUCCESS) {
5958 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5959 "2012 Mailbox failed , mbxCmd x%x "
5960 "READ_CONFIG, mbxStatus x%x\n",
5961 bf_get(lpfc_mqe_command, &pmb->u.mqe),
5962 bf_get(lpfc_mqe_status, &pmb->u.mqe));
5963 rc = -EIO;
5964 } else {
5965 rd_config = &pmb->u.mqe.un.rd_config;
6d368e53
JS		 5966 phba->sli4_hba.extents_in_use =
5967 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
da0436e9
JS		 5968 phba->sli4_hba.max_cfg_param.max_xri =
5969 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
5970 phba->sli4_hba.max_cfg_param.xri_base =
5971 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
5972 phba->sli4_hba.max_cfg_param.max_vpi =
5973 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
5974 phba->sli4_hba.max_cfg_param.vpi_base =
5975 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
5976 phba->sli4_hba.max_cfg_param.max_rpi =
5977 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
5978 phba->sli4_hba.max_cfg_param.rpi_base =
5979 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
5980 phba->sli4_hba.max_cfg_param.max_vfi =
5981 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
5982 phba->sli4_hba.max_cfg_param.vfi_base =
5983 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
5984 phba->sli4_hba.max_cfg_param.max_fcfi =
5985 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
da0436e9
JS		 5986 phba->sli4_hba.max_cfg_param.max_eq =
5987 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
5988 phba->sli4_hba.max_cfg_param.max_rq =
5989 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
5990 phba->sli4_hba.max_cfg_param.max_wq =
5991 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
5992 phba->sli4_hba.max_cfg_param.max_cq =
5993 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
5994 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
5995 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
5996 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
5997 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5998 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
5ffc266e
JS		 5999 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6000 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
da0436e9
JS		 6001 phba->max_vports = phba->max_vpi;
6002 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6d368e53
JS		 6003 "2003 cfg params Extents? %d "
6004 "XRI(B:%d M:%d), "
da0436e9
JS		 6005 "VPI(B:%d M:%d) "
6006 "VFI(B:%d M:%d) "
6007 "RPI(B:%d M:%d) "
6d368e53
JS		 6008 "FCFI(Count:%d)\n",
6009 phba->sli4_hba.extents_in_use,
da0436e9
JS		 6010 phba->sli4_hba.max_cfg_param.xri_base,
6011 phba->sli4_hba.max_cfg_param.max_xri,
6012 phba->sli4_hba.max_cfg_param.vpi_base,
6013 phba->sli4_hba.max_cfg_param.max_vpi,
6014 phba->sli4_hba.max_cfg_param.vfi_base,
6015 phba->sli4_hba.max_cfg_param.max_vfi,
6016 phba->sli4_hba.max_cfg_param.rpi_base,
6017 phba->sli4_hba.max_cfg_param.max_rpi,
da0436e9 6018 phba->sli4_hba.max_cfg_param.max_fcfi);
3772a991 6019 }
912e3acd
JS		 6020
6021 if (rc)
6022 goto read_cfg_out;
da0436e9
JS		 6023
6024 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
b92938b4
JS		 6025 if (phba->cfg_hba_queue_depth >
6026 (phba->sli4_hba.max_cfg_param.max_xri -
6027 lpfc_sli4_get_els_iocb_cnt(phba)))
da0436e9 6028 phba->cfg_hba_queue_depth =
b92938b4
JS		 6029 phba->sli4_hba.max_cfg_param.max_xri -
6030 lpfc_sli4_get_els_iocb_cnt(phba);
912e3acd
JS		 6031
6032 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6033 LPFC_SLI_INTF_IF_TYPE_2)
6034 goto read_cfg_out;
6035
6036 /* get the pf# and vf# for SLI4 if_type 2 port */
6037 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6038 sizeof(struct lpfc_sli4_cfg_mhdr));
6039 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6040 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6041 length, LPFC_SLI4_MBX_EMBED);
6042
6043 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6044 shdr = (union lpfc_sli4_cfg_shdr *)
6045 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6046 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6047 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6048 if (rc || shdr_status || shdr_add_status) {
6049 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6050 "3026 Mailbox failed , mbxCmd x%x "
6051 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6052 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6053 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6054 rc = -EIO;
6055 goto read_cfg_out;
6056 }
6057
6058 /* search for fc_fcoe resrouce descriptor */
6059 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6060 desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6061
6062 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6063 desc = (struct lpfc_rsrc_desc_fcfcoe *)
6064 &get_func_cfg->func_cfg.desc[i];
6065 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6066 bf_get(lpfc_rsrc_desc_pcie_type, desc)) {
6067 phba->sli4_hba.iov.pf_number =
6068 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6069 phba->sli4_hba.iov.vf_number =
6070 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6071 break;
6072 }
6073 }
6074
6075 if (i < LPFC_RSRC_DESC_MAX_NUM)
6076 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6077 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6078 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6079 phba->sli4_hba.iov.vf_number);
6080 else {
6081 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6082 "3028 GET_FUNCTION_CONFIG: failed to find "
6083 "Resrouce Descriptor:x%x\n",
6084 LPFC_RSRC_DESC_TYPE_FCFCOE);
6085 rc = -EIO;
6086 }
6087
6088read_cfg_out:
6089 mempool_free(pmb, phba->mbox_mem_pool);
da0436e9 6090 return rc;
3772a991
JS		 6091}
6092
6093/**
2fcee4bf 6094 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
3772a991
JS		 6095 * @phba: pointer to lpfc hba data structure.
6096 *
2fcee4bf
JS		 6097 * This routine is invoked to setup the port-side endian order when
6098 * the port if_type is 0. This routine has no function for other
6099 * if_types.
da0436e9
JS		 6100 *
6101 * Return codes
af901ca1 6102 * 0 - successful
25985edc 6103 * -ENOMEM - No available memory
d439d286 6104 * -EIO - The mailbox failed to complete successfully.
3772a991 6105 **/
da0436e9
JS		 6106static int
6107lpfc_setup_endian_order(struct lpfc_hba *phba)
3772a991 6108{
da0436e9 6109 LPFC_MBOXQ_t *mboxq;
2fcee4bf 6110 uint32_t if_type, rc = 0;
da0436e9
JS		 6111 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6112 HOST_ENDIAN_HIGH_WORD1};
3772a991 6113
2fcee4bf
JS		 6114 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6115 switch (if_type) {
6116 case LPFC_SLI_INTF_IF_TYPE_0:
6117 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6118 GFP_KERNEL);
6119 if (!mboxq) {
6120 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6121 "0492 Unable to allocate memory for "
6122 "issuing SLI_CONFIG_SPECIAL mailbox "
6123 "command\n");
6124 return -ENOMEM;
6125 }
3772a991 6126
2fcee4bf
JS		 6127 /*
6128 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6129 * two words to contain special data values and no other data.
6130 */
6131 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6132 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6133 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6134 if (rc != MBX_SUCCESS) {
6135 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6136 "0493 SLI_CONFIG_SPECIAL mailbox "
6137 "failed with status x%x\n",
6138 rc);
6139 rc = -EIO;
6140 }
6141 mempool_free(mboxq, phba->mbox_mem_pool);
6142 break;
6143 case LPFC_SLI_INTF_IF_TYPE_2:
6144 case LPFC_SLI_INTF_IF_TYPE_1:
6145 default:
6146 break;
da0436e9 6147 }
da0436e9 6148 return rc;
3772a991
JS		 6149}
6150
6151/**
da0436e9 6152 * lpfc_sli4_queue_create - Create all the SLI4 queues
3772a991
JS		 6153 * @phba: pointer to lpfc hba data structure.
6154 *
da0436e9
JS		 6155 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6156 * operation. For each SLI4 queue type, the parameters such as queue entry
6157 * count (queue depth) shall be taken from the module parameter. For now,
6158 * we just use some constant number as place holder.
6159 *
6160 * Return codes
af901ca1 6161 * 0 - successful
25985edc 6162 * -ENOMEM - No available memory
d439d286 6163 * -EIO - The mailbox failed to complete successfully.
3772a991 6164 **/
da0436e9
JS		 6165static int
6166lpfc_sli4_queue_create(struct lpfc_hba *phba)
3772a991 6167{
da0436e9
JS		 6168 struct lpfc_queue *qdesc;
6169 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6170 int cfg_fcp_wq_count;
6171 int cfg_fcp_eq_count;
3772a991 6172
da0436e9
JS		 6173 /*
6174 * Sanity check for confiugred queue parameters against the run-time
6175 * device parameters
6176 */
3772a991 6177
da0436e9
JS		 6178 /* Sanity check on FCP fast-path WQ parameters */
6179 cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
6180 if (cfg_fcp_wq_count >
6181 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
6182 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
6183 LPFC_SP_WQN_DEF;
6184 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
6185 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6186 "2581 Not enough WQs (%d) from "
6187 "the pci function for supporting "
6188 "FCP WQs (%d)\n",
6189 phba->sli4_hba.max_cfg_param.max_wq,
6190 phba->cfg_fcp_wq_count);
6191 goto out_error;
6192 }
6193 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6194 "2582 Not enough WQs (%d) from the pci "
6195 "function for supporting the requested "
6196 "FCP WQs (%d), the actual FCP WQs can "
6197 "be supported: %d\n",
6198 phba->sli4_hba.max_cfg_param.max_wq,
6199 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
6200 }
6201 /* The actual number of FCP work queues adopted */
6202 phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
6203
6204 /* Sanity check on FCP fast-path EQ parameters */
6205 cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
6206 if (cfg_fcp_eq_count >
6207 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
6208 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
6209 LPFC_SP_EQN_DEF;
6210 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
6211 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6212 "2574 Not enough EQs (%d) from the "
6213 "pci function for supporting FCP "
6214 "EQs (%d)\n",
6215 phba->sli4_hba.max_cfg_param.max_eq,
6216 phba->cfg_fcp_eq_count);
6217 goto out_error;
6218 }
6219 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6220 "2575 Not enough EQs (%d) from the pci "
6221 "function for supporting the requested "
6222 "FCP EQs (%d), the actual FCP EQs can "
6223 "be supported: %d\n",
6224 phba->sli4_hba.max_cfg_param.max_eq,
6225 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
6226 }
6227 /* It does not make sense to have more EQs than WQs */
6228 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
6229 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6a9c52cf
JS		 6230 "2593 The FCP EQ count(%d) cannot be greater "
6231 "than the FCP WQ count(%d), limiting the "
6232 "FCP EQ count to %d\n", cfg_fcp_eq_count,
da0436e9
JS		 6233 phba->cfg_fcp_wq_count,
6234 phba->cfg_fcp_wq_count);
6235 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
6236 }
6237 /* The actual number of FCP event queues adopted */
6238 phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
6239 /* The overall number of event queues used */
6240 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
3772a991 6241
da0436e9
JS		 6242 /*
6243 * Create Event Queues (EQs)
6244 */
3772a991 6245
da0436e9
JS		 6246 /* Get EQ depth from module parameter, fake the default for now */
6247 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6248 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
3772a991 6249
da0436e9
JS		 6250 /* Create slow path event queue */
6251 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6252 phba->sli4_hba.eq_ecount);
6253 if (!qdesc) {
6254 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6255 "0496 Failed allocate slow-path EQ\n");
6256 goto out_error;
6257 }
6258 phba->sli4_hba.sp_eq = qdesc;
6259
6260 /* Create fast-path FCP Event Queue(s) */
6261 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
6262 phba->cfg_fcp_eq_count), GFP_KERNEL);
6263 if (!phba->sli4_hba.fp_eq) {
6264 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6265 "2576 Failed allocate memory for fast-path "
6266 "EQ record array\n");
6267 goto out_free_sp_eq;
6268 }
6269 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6270 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6271 phba->sli4_hba.eq_ecount);
6272 if (!qdesc) {
6273 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6274 "0497 Failed allocate fast-path EQ\n");
6275 goto out_free_fp_eq;
6276 }
6277 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
6278 }
6279
6280 /*
6281 * Create Complete Queues (CQs)
6282 */
6283
6284 /* Get CQ depth from module parameter, fake the default for now */
6285 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6286 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6287
6288 /* Create slow-path Mailbox Command Complete Queue */
6289 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6290 phba->sli4_hba.cq_ecount);
6291 if (!qdesc) {
6292 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6293 "0500 Failed allocate slow-path mailbox CQ\n");
6294 goto out_free_fp_eq;
6295 }
6296 phba->sli4_hba.mbx_cq = qdesc;
6297
6298 /* Create slow-path ELS Complete Queue */
6299 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6300 phba->sli4_hba.cq_ecount);
6301 if (!qdesc) {
6302 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6303 "0501 Failed allocate slow-path ELS CQ\n");
6304 goto out_free_mbx_cq;
6305 }
6306 phba->sli4_hba.els_cq = qdesc;
6307
da0436e9
JS		 6308
6309 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
6310 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6311 phba->cfg_fcp_eq_count), GFP_KERNEL);
6312 if (!phba->sli4_hba.fcp_cq) {
6313 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6314 "2577 Failed allocate memory for fast-path "
6315 "CQ record array\n");
4d9ab994 6316 goto out_free_els_cq;
da0436e9
JS		 6317 }
6318 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6319 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6320 phba->sli4_hba.cq_ecount);
6321 if (!qdesc) {
6322 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6323 "0499 Failed allocate fast-path FCP "
6324 "CQ (%d)\n", fcp_cqidx);
6325 goto out_free_fcp_cq;
6326 }
6327 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
6328 }
6329
6330 /* Create Mailbox Command Queue */
6331 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6332 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6333
6334 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
6335 phba->sli4_hba.mq_ecount);
6336 if (!qdesc) {
6337 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6338 "0505 Failed allocate slow-path MQ\n");
6339 goto out_free_fcp_cq;
6340 }
6341 phba->sli4_hba.mbx_wq = qdesc;
6342
6343 /*
6344 * Create all the Work Queues (WQs)
6345 */
6346 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6347 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6348
6349 /* Create slow-path ELS Work Queue */
6350 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6351 phba->sli4_hba.wq_ecount);
6352 if (!qdesc) {
6353 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6354 "0504 Failed allocate slow-path ELS WQ\n");
6355 goto out_free_mbx_wq;
6356 }
6357 phba->sli4_hba.els_wq = qdesc;
6358
6359 /* Create fast-path FCP Work Queue(s) */
6360 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6361 phba->cfg_fcp_wq_count), GFP_KERNEL);
6362 if (!phba->sli4_hba.fcp_wq) {
6363 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6364 "2578 Failed allocate memory for fast-path "
6365 "WQ record array\n");
6366 goto out_free_els_wq;
6367 }
6368 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6369 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6370 phba->sli4_hba.wq_ecount);
6371 if (!qdesc) {
6372 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6373 "0503 Failed allocate fast-path FCP "
6374 "WQ (%d)\n", fcp_wqidx);
6375 goto out_free_fcp_wq;
6376 }
6377 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
6378 }
6379
6380 /*
6381 * Create Receive Queue (RQ)
6382 */
6383 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6384 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6385
6386 /* Create Receive Queue for header */
6387 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6388 phba->sli4_hba.rq_ecount);
6389 if (!qdesc) {
6390 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6391 "0506 Failed allocate receive HRQ\n");
6392 goto out_free_fcp_wq;
6393 }
6394 phba->sli4_hba.hdr_rq = qdesc;
6395
6396 /* Create Receive Queue for data */
6397 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6398 phba->sli4_hba.rq_ecount);
6399 if (!qdesc) {
6400 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6401 "0507 Failed allocate receive DRQ\n");
6402 goto out_free_hdr_rq;
6403 }
6404 phba->sli4_hba.dat_rq = qdesc;
6405
6406 return 0;
6407
6408out_free_hdr_rq:
6409 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6410 phba->sli4_hba.hdr_rq = NULL;
6411out_free_fcp_wq:
6412 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
6413 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
6414 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
6415 }
6416 kfree(phba->sli4_hba.fcp_wq);
6417out_free_els_wq:
6418 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6419 phba->sli4_hba.els_wq = NULL;
6420out_free_mbx_wq:
6421 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6422 phba->sli4_hba.mbx_wq = NULL;
6423out_free_fcp_cq:
6424 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
6425 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
6426 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
6427 }
6428 kfree(phba->sli4_hba.fcp_cq);
da0436e9
JS		 6429out_free_els_cq:
6430 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6431 phba->sli4_hba.els_cq = NULL;
6432out_free_mbx_cq:
6433 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6434 phba->sli4_hba.mbx_cq = NULL;
6435out_free_fp_eq:
6436 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
6437 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
6438 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
6439 }
6440 kfree(phba->sli4_hba.fp_eq);
6441out_free_sp_eq:
6442 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6443 phba->sli4_hba.sp_eq = NULL;
6444out_error:
6445 return -ENOMEM;
6446}
6447
6448/**
6449 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6450 * @phba: pointer to lpfc hba data structure.
6451 *
6452 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6453 * operation.
6454 *
6455 * Return codes
af901ca1 6456 * 0 - successful
25985edc 6457 * -ENOMEM - No available memory
d439d286 6458 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 6459 **/
6460static void
6461lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
6462{
6463 int fcp_qidx;
6464
6465 /* Release mailbox command work queue */
6466 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6467 phba->sli4_hba.mbx_wq = NULL;
6468
6469 /* Release ELS work queue */
6470 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6471 phba->sli4_hba.els_wq = NULL;
6472
6473 /* Release FCP work queue */
6474 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6475 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
6476 kfree(phba->sli4_hba.fcp_wq);
6477 phba->sli4_hba.fcp_wq = NULL;
6478
6479 /* Release unsolicited receive queue */
6480 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6481 phba->sli4_hba.hdr_rq = NULL;
6482 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
6483 phba->sli4_hba.dat_rq = NULL;
6484
da0436e9
JS		 6485 /* Release ELS complete queue */
6486 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6487 phba->sli4_hba.els_cq = NULL;
6488
6489 /* Release mailbox command complete queue */
6490 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6491 phba->sli4_hba.mbx_cq = NULL;
6492
6493 /* Release FCP response complete queue */
0558056c
JS		 6494 fcp_qidx = 0;
6495 do
da0436e9 6496 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
0558056c 6497 while (++fcp_qidx < phba->cfg_fcp_eq_count);
da0436e9
JS		 6498 kfree(phba->sli4_hba.fcp_cq);
6499 phba->sli4_hba.fcp_cq = NULL;
6500
6501 /* Release fast-path event queue */
6502 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6503 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
6504 kfree(phba->sli4_hba.fp_eq);
6505 phba->sli4_hba.fp_eq = NULL;
6506
6507 /* Release slow-path event queue */
6508 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6509 phba->sli4_hba.sp_eq = NULL;
6510
6511 return;
6512}
6513
6514/**
6515 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
6516 * @phba: pointer to lpfc hba data structure.
6517 *
6518 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
6519 * operation.
6520 *
6521 * Return codes
af901ca1 6522 * 0 - successful
25985edc 6523 * -ENOMEM - No available memory
d439d286 6524 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 6525 **/
6526int
6527lpfc_sli4_queue_setup(struct lpfc_hba *phba)
6528{
6529 int rc = -ENOMEM;
6530 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6531 int fcp_cq_index = 0;
6532
6533 /*
6534 * Set up Event Queues (EQs)
6535 */
6536
6537 /* Set up slow-path event queue */
6538 if (!phba->sli4_hba.sp_eq) {
6539 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6540 "0520 Slow-path EQ not allocated\n");
6541 goto out_error;
6542 }
6543 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
6544 LPFC_SP_DEF_IMAX);
6545 if (rc) {
6546 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6547 "0521 Failed setup of slow-path EQ: "
6548 "rc = 0x%x\n", rc);
6549 goto out_error;
6550 }
6551 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6552 "2583 Slow-path EQ setup: queue-id=%d\n",
6553 phba->sli4_hba.sp_eq->queue_id);
6554
6555 /* Set up fast-path event queue */
6556 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6557 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
6558 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6559 "0522 Fast-path EQ (%d) not "
6560 "allocated\n", fcp_eqidx);
6561 goto out_destroy_fp_eq;
6562 }
6563 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
6564 phba->cfg_fcp_imax);
6565 if (rc) {
6566 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6567 "0523 Failed setup of fast-path EQ "
6568 "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6569 goto out_destroy_fp_eq;
6570 }
6571 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6572 "2584 Fast-path EQ setup: "
6573 "queue[%d]-id=%d\n", fcp_eqidx,
6574 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
6575 }
6576
6577 /*
6578 * Set up Complete Queues (CQs)
6579 */
6580
6581 /* Set up slow-path MBOX Complete Queue as the first CQ */
6582 if (!phba->sli4_hba.mbx_cq) {
6583 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6584 "0528 Mailbox CQ not allocated\n");
6585 goto out_destroy_fp_eq;
6586 }
6587 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
6588 LPFC_MCQ, LPFC_MBOX);
6589 if (rc) {
6590 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6591 "0529 Failed setup of slow-path mailbox CQ: "
6592 "rc = 0x%x\n", rc);
6593 goto out_destroy_fp_eq;
6594 }
6595 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6596 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6597 phba->sli4_hba.mbx_cq->queue_id,
6598 phba->sli4_hba.sp_eq->queue_id);
6599
6600 /* Set up slow-path ELS Complete Queue */
6601 if (!phba->sli4_hba.els_cq) {
6602 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6603 "0530 ELS CQ not allocated\n");
6604 goto out_destroy_mbx_cq;
6605 }
6606 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
6607 LPFC_WCQ, LPFC_ELS);
6608 if (rc) {
6609 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6610 "0531 Failed setup of slow-path ELS CQ: "
6611 "rc = 0x%x\n", rc);
6612 goto out_destroy_mbx_cq;
6613 }
6614 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6615 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6616 phba->sli4_hba.els_cq->queue_id,
6617 phba->sli4_hba.sp_eq->queue_id);
6618
da0436e9 6619 /* Set up fast-path FCP Response Complete Queue */
0558056c
JS		 6620 fcp_cqidx = 0;
6621 do {
da0436e9
JS		 6622 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6623 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6624 "0526 Fast-path FCP CQ (%d) not "
6625 "allocated\n", fcp_cqidx);
6626 goto out_destroy_fcp_cq;
6627 }
0558056c
JS		 6628 if (phba->cfg_fcp_eq_count)
6629 rc = lpfc_cq_create(phba,
6630 phba->sli4_hba.fcp_cq[fcp_cqidx],
6631 phba->sli4_hba.fp_eq[fcp_cqidx],
6632 LPFC_WCQ, LPFC_FCP);
6633 else
6634 rc = lpfc_cq_create(phba,
6635 phba->sli4_hba.fcp_cq[fcp_cqidx],
6636 phba->sli4_hba.sp_eq,
6637 LPFC_WCQ, LPFC_FCP);
da0436e9
JS		 6638 if (rc) {
6639 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6640 "0527 Failed setup of fast-path FCP "
6641 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6642 goto out_destroy_fcp_cq;
6643 }
6644 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6645 "2588 FCP CQ setup: cq[%d]-id=%d, "
0558056c 6646 "parent %seq[%d]-id=%d\n",
da0436e9
JS		 6647 fcp_cqidx,
6648 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
0558056c 6649 (phba->cfg_fcp_eq_count) ? "" : "sp_",
da0436e9 6650 fcp_cqidx,
0558056c
JS		 6651 (phba->cfg_fcp_eq_count) ?
6652 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id :
6653 phba->sli4_hba.sp_eq->queue_id);
6654 } while (++fcp_cqidx < phba->cfg_fcp_eq_count);
da0436e9
JS		 6655
6656 /*
6657 * Set up all the Work Queues (WQs)
6658 */
6659
6660 /* Set up Mailbox Command Queue */
6661 if (!phba->sli4_hba.mbx_wq) {
6662 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6663 "0538 Slow-path MQ not allocated\n");
6664 goto out_destroy_fcp_cq;
6665 }
6666 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
6667 phba->sli4_hba.mbx_cq, LPFC_MBOX);
6668 if (rc) {
6669 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6670 "0539 Failed setup of slow-path MQ: "
6671 "rc = 0x%x\n", rc);
6672 goto out_destroy_fcp_cq;
6673 }
6674 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6675 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6676 phba->sli4_hba.mbx_wq->queue_id,
6677 phba->sli4_hba.mbx_cq->queue_id);
6678
6679 /* Set up slow-path ELS Work Queue */
6680 if (!phba->sli4_hba.els_wq) {
6681 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6682 "0536 Slow-path ELS WQ not allocated\n");
6683 goto out_destroy_mbx_wq;
6684 }
6685 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
6686 phba->sli4_hba.els_cq, LPFC_ELS);
6687 if (rc) {
6688 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6689 "0537 Failed setup of slow-path ELS WQ: "
6690 "rc = 0x%x\n", rc);
6691 goto out_destroy_mbx_wq;
6692 }
6693 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6694 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6695 phba->sli4_hba.els_wq->queue_id,
6696 phba->sli4_hba.els_cq->queue_id);
6697
6698 /* Set up fast-path FCP Work Queue */
6699 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6700 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
6701 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6702 "0534 Fast-path FCP WQ (%d) not "
6703 "allocated\n", fcp_wqidx);
6704 goto out_destroy_fcp_wq;
6705 }
6706 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
6707 phba->sli4_hba.fcp_cq[fcp_cq_index],
6708 LPFC_FCP);
6709 if (rc) {
6710 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6711 "0535 Failed setup of fast-path FCP "
6712 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
6713 goto out_destroy_fcp_wq;
6714 }
6715 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6716 "2591 FCP WQ setup: wq[%d]-id=%d, "
6717 "parent cq[%d]-id=%d\n",
6718 fcp_wqidx,
6719 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
6720 fcp_cq_index,
6721 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
6722 /* Round robin FCP Work Queue's Completion Queue assignment */
0558056c
JS		 6723 if (phba->cfg_fcp_eq_count)
6724 fcp_cq_index = ((fcp_cq_index + 1) %
6725 phba->cfg_fcp_eq_count);
da0436e9
JS		 6726 }
6727
6728 /*
6729 * Create Receive Queue (RQ)
6730 */
6731 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
6732 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6733 "0540 Receive Queue not allocated\n");
6734 goto out_destroy_fcp_wq;
6735 }
73d91e50
JS		 6736
6737 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
6738 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
6739
da0436e9 6740 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
4d9ab994 6741 phba->sli4_hba.els_cq, LPFC_USOL);
da0436e9
JS		 6742 if (rc) {
6743 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6744 "0541 Failed setup of Receive Queue: "
6745 "rc = 0x%x\n", rc);
6746 goto out_destroy_fcp_wq;
6747 }
73d91e50 6748
da0436e9
JS		 6749 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6750 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6751 "parent cq-id=%d\n",
6752 phba->sli4_hba.hdr_rq->queue_id,
6753 phba->sli4_hba.dat_rq->queue_id,
4d9ab994 6754 phba->sli4_hba.els_cq->queue_id);
da0436e9
JS		 6755 return 0;
6756
6757out_destroy_fcp_wq:
6758 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
6759 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6760 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6761out_destroy_mbx_wq:
6762 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6763out_destroy_fcp_cq:
6764 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
6765 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
da0436e9
JS		 6766 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6767out_destroy_mbx_cq:
6768 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6769out_destroy_fp_eq:
6770 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
6771 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6772 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6773out_error:
6774 return rc;
6775}
6776
6777/**
6778 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6779 * @phba: pointer to lpfc hba data structure.
6780 *
6781 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6782 * operation.
6783 *
6784 * Return codes
af901ca1 6785 * 0 - successful
25985edc 6786 * -ENOMEM - No available memory
d439d286 6787 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 6788 **/
6789void
6790lpfc_sli4_queue_unset(struct lpfc_hba *phba)
6791{
6792 int fcp_qidx;
6793
6794 /* Unset mailbox command work queue */
6795 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6796 /* Unset ELS work queue */
6797 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6798 /* Unset unsolicited receive queue */
6799 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
6800 /* Unset FCP work queue */
6801 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6802 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
6803 /* Unset mailbox command complete queue */
6804 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6805 /* Unset ELS complete queue */
6806 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
da0436e9
JS		 6807 /* Unset FCP response complete queue */
6808 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6809 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
6810 /* Unset fast-path event queue */
6811 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6812 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
6813 /* Unset slow-path event queue */
6814 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6815}
6816
6817/**
6818 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6819 * @phba: pointer to lpfc hba data structure.
6820 *
6821 * This routine is invoked to allocate and set up a pool of completion queue
6822 * events. The body of the completion queue event is a completion queue entry
6823 * CQE. For now, this pool is used for the interrupt service routine to queue
6824 * the following HBA completion queue events for the worker thread to process:
6825 * - Mailbox asynchronous events
6826 * - Receive queue completion unsolicited events
6827 * Later, this can be used for all the slow-path events.
6828 *
6829 * Return codes
af901ca1 6830 * 0 - successful
25985edc 6831 * -ENOMEM - No available memory
da0436e9
JS		 6832 **/
6833static int
6834lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
6835{
6836 struct lpfc_cq_event *cq_event;
6837 int i;
6838
6839 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
6840 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
6841 if (!cq_event)
6842 goto out_pool_create_fail;
6843 list_add_tail(&cq_event->list,
6844 &phba->sli4_hba.sp_cqe_event_pool);
6845 }
6846 return 0;
6847
6848out_pool_create_fail:
6849 lpfc_sli4_cq_event_pool_destroy(phba);
6850 return -ENOMEM;
6851}
6852
6853/**
6854 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6855 * @phba: pointer to lpfc hba data structure.
6856 *
6857 * This routine is invoked to free the pool of completion queue events at
6858 * driver unload time. Note that, it is the responsibility of the driver
6859 * cleanup routine to free all the outstanding completion-queue events
6860 * allocated from this pool back into the pool before invoking this routine
6861 * to destroy the pool.
6862 **/
6863static void
6864lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
6865{
6866 struct lpfc_cq_event *cq_event, *next_cq_event;
6867
6868 list_for_each_entry_safe(cq_event, next_cq_event,
6869 &phba->sli4_hba.sp_cqe_event_pool, list) {
6870 list_del(&cq_event->list);
6871 kfree(cq_event);
6872 }
6873}
6874
6875/**
6876 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6877 * @phba: pointer to lpfc hba data structure.
6878 *
6879 * This routine is the lock free version of the API invoked to allocate a
6880 * completion-queue event from the free pool.
6881 *
6882 * Return: Pointer to the newly allocated completion-queue event if successful
6883 * NULL otherwise.
6884 **/
6885struct lpfc_cq_event *
6886__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6887{
6888 struct lpfc_cq_event *cq_event = NULL;
6889
6890 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
6891 struct lpfc_cq_event, list);
6892 return cq_event;
6893}
6894
6895/**
6896 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6897 * @phba: pointer to lpfc hba data structure.
6898 *
6899 * This routine is the lock version of the API invoked to allocate a
6900 * completion-queue event from the free pool.
6901 *
6902 * Return: Pointer to the newly allocated completion-queue event if successful
6903 * NULL otherwise.
6904 **/
6905struct lpfc_cq_event *
6906lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6907{
6908 struct lpfc_cq_event *cq_event;
6909 unsigned long iflags;
6910
6911 spin_lock_irqsave(&phba->hbalock, iflags);
6912 cq_event = __lpfc_sli4_cq_event_alloc(phba);
6913 spin_unlock_irqrestore(&phba->hbalock, iflags);
6914 return cq_event;
6915}
6916
6917/**
6918 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6919 * @phba: pointer to lpfc hba data structure.
6920 * @cq_event: pointer to the completion queue event to be freed.
6921 *
6922 * This routine is the lock free version of the API invoked to release a
6923 * completion-queue event back into the free pool.
6924 **/
6925void
6926__lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6927 struct lpfc_cq_event *cq_event)
6928{
6929 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
6930}
6931
6932/**
6933 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6934 * @phba: pointer to lpfc hba data structure.
6935 * @cq_event: pointer to the completion queue event to be freed.
6936 *
6937 * This routine is the lock version of the API invoked to release a
6938 * completion-queue event back into the free pool.
6939 **/
6940void
6941lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6942 struct lpfc_cq_event *cq_event)
6943{
6944 unsigned long iflags;
6945 spin_lock_irqsave(&phba->hbalock, iflags);
6946 __lpfc_sli4_cq_event_release(phba, cq_event);
6947 spin_unlock_irqrestore(&phba->hbalock, iflags);
6948}
6949
6950/**
6951 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6952 * @phba: pointer to lpfc hba data structure.
6953 *
6954 * This routine is to free all the pending completion-queue events to the
6955 * back into the free pool for device reset.
6956 **/
6957static void
6958lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
6959{
6960 LIST_HEAD(cqelist);
6961 struct lpfc_cq_event *cqe;
6962 unsigned long iflags;
6963
6964 /* Retrieve all the pending WCQEs from pending WCQE lists */
6965 spin_lock_irqsave(&phba->hbalock, iflags);
6966 /* Pending FCP XRI abort events */
6967 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
6968 &cqelist);
6969 /* Pending ELS XRI abort events */
6970 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
6971 &cqelist);
6972 /* Pending asynnc events */
6973 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
6974 &cqelist);
6975 spin_unlock_irqrestore(&phba->hbalock, iflags);
6976
6977 while (!list_empty(&cqelist)) {
6978 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
6979 lpfc_sli4_cq_event_release(phba, cqe);
6980 }
6981}
6982
6983/**
6984 * lpfc_pci_function_reset - Reset pci function.
6985 * @phba: pointer to lpfc hba data structure.
6986 *
6987 * This routine is invoked to request a PCI function reset. It will destroys
6988 * all resources assigned to the PCI function which originates this request.
6989 *
6990 * Return codes
af901ca1 6991 * 0 - successful
25985edc 6992 * -ENOMEM - No available memory
d439d286 6993 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 6994 **/
6995int
6996lpfc_pci_function_reset(struct lpfc_hba *phba)
6997{
6998 LPFC_MBOXQ_t *mboxq;
2fcee4bf 6999 uint32_t rc = 0, if_type;
da0436e9 7000 uint32_t shdr_status, shdr_add_status;
2fcee4bf 7001 uint32_t rdy_chk, num_resets = 0, reset_again = 0;
da0436e9 7002 union lpfc_sli4_cfg_shdr *shdr;
2fcee4bf 7003 struct lpfc_register reg_data;
da0436e9 7004
2fcee4bf
JS		 7005 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7006 switch (if_type) {
7007 case LPFC_SLI_INTF_IF_TYPE_0:
7008 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7009 GFP_KERNEL);
7010 if (!mboxq) {
7011 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7012 "0494 Unable to allocate memory for "
7013 "issuing SLI_FUNCTION_RESET mailbox "
7014 "command\n");
7015 return -ENOMEM;
7016 }
da0436e9 7017
2fcee4bf
JS		 7018 /* Setup PCI function reset mailbox-ioctl command */
7019 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7020 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
7021 LPFC_SLI4_MBX_EMBED);
7022 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7023 shdr = (union lpfc_sli4_cfg_shdr *)
7024 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7025 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7026 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7027 &shdr->response);
7028 if (rc != MBX_TIMEOUT)
7029 mempool_free(mboxq, phba->mbox_mem_pool);
7030 if (shdr_status || shdr_add_status || rc) {
7031 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7032 "0495 SLI_FUNCTION_RESET mailbox "
7033 "failed with status x%x add_status x%x,"
7034 " mbx status x%x\n",
7035 shdr_status, shdr_add_status, rc);
7036 rc = -ENXIO;
7037 }
7038 break;
7039 case LPFC_SLI_INTF_IF_TYPE_2:
7040 for (num_resets = 0;
7041 num_resets < MAX_IF_TYPE_2_RESETS;
7042 num_resets++) {
7043 reg_data.word0 = 0;
7044 bf_set(lpfc_sliport_ctrl_end, &reg_data,
7045 LPFC_SLIPORT_LITTLE_ENDIAN);
7046 bf_set(lpfc_sliport_ctrl_ip, &reg_data,
7047 LPFC_SLIPORT_INIT_PORT);
7048 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
7049 CTRLregaddr);
7050
7051 /*
7052 * Poll the Port Status Register and wait for RDY for
7053 * up to 10 seconds. If the port doesn't respond, treat
7054 * it as an error. If the port responds with RN, start
7055 * the loop again.
7056 */
7057 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
73d91e50 7058 msleep(10);
9940b97b
JS		 7059 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7060 STATUSregaddr, &reg_data.word0)) {
7061 rc = -ENODEV;
73d91e50 7062 goto out;
9940b97b 7063 }
2fcee4bf
JS		 7064 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
7065 break;
7066 if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
7067 reset_again++;
7068 break;
7069 }
2fcee4bf
JS		 7070 }
7071
7072 /*
7073 * If the port responds to the init request with
7074 * reset needed, delay for a bit and restart the loop.
7075 */
7076 if (reset_again) {
7077 msleep(10);
7078 reset_again = 0;
7079 continue;
7080 }
7081
7082 /* Detect any port errors. */
2fcee4bf
JS		 7083 if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
7084 (rdy_chk >= 1000)) {
7085 phba->work_status[0] = readl(
7086 phba->sli4_hba.u.if_type2.ERR1regaddr);
7087 phba->work_status[1] = readl(
7088 phba->sli4_hba.u.if_type2.ERR2regaddr);
7089 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7090 "2890 Port Error Detected "
7091 "during Port Reset: "
7092 "port status reg 0x%x, "
7093 "error 1=0x%x, error 2=0x%x\n",
7094 reg_data.word0,
7095 phba->work_status[0],
7096 phba->work_status[1]);
7097 rc = -ENODEV;
7098 }
7099
7100 /*
7101 * Terminate the outer loop provided the Port indicated
7102 * ready within 10 seconds.
7103 */
7104 if (rdy_chk < 1000)
7105 break;
7106 }
0558056c
JS		 7107 /* delay driver action following IF_TYPE_2 function reset */
7108 msleep(100);
2fcee4bf
JS		 7109 break;
7110 case LPFC_SLI_INTF_IF_TYPE_1:
7111 default:
7112 break;
da0436e9 7113 }
2fcee4bf 7114
73d91e50 7115out:
2fcee4bf
JS		 7116 /* Catch the not-ready port failure after a port reset. */
7117 if (num_resets >= MAX_IF_TYPE_2_RESETS)
7118 rc = -ENODEV;
7119
da0436e9
JS		 7120 return rc;
7121}
7122
7123/**
7124 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
7125 * @phba: pointer to lpfc hba data structure.
7126 * @cnt: number of nop mailbox commands to send.
7127 *
7128 * This routine is invoked to send a number @cnt of NOP mailbox command and
7129 * wait for each command to complete.
7130 *
7131 * Return: the number of NOP mailbox command completed.
7132 **/
7133static int
7134lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
7135{
7136 LPFC_MBOXQ_t *mboxq;
7137 int length, cmdsent;
7138 uint32_t mbox_tmo;
7139 uint32_t rc = 0;
7140 uint32_t shdr_status, shdr_add_status;
7141 union lpfc_sli4_cfg_shdr *shdr;
7142
7143 if (cnt == 0) {
7144 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7145 "2518 Requested to send 0 NOP mailbox cmd\n");
7146 return cnt;
7147 }
7148
7149 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7150 if (!mboxq) {
7151 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7152 "2519 Unable to allocate memory for issuing "
7153 "NOP mailbox command\n");
7154 return 0;
7155 }
7156
7157 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
7158 length = (sizeof(struct lpfc_mbx_nop) -
7159 sizeof(struct lpfc_sli4_cfg_mhdr));
7160 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7161 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
7162
da0436e9
JS		 7163 for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
7164 if (!phba->sli4_hba.intr_enable)
7165 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
a183a15f
JS		 7166 else {
7167 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
da0436e9 7168 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
a183a15f 7169 }
da0436e9
JS		 7170 if (rc == MBX_TIMEOUT)
7171 break;
7172 /* Check return status */
7173 shdr = (union lpfc_sli4_cfg_shdr *)
7174 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7175 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7176 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7177 &shdr->response);
7178 if (shdr_status || shdr_add_status || rc) {
7179 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7180 "2520 NOP mailbox command failed "
7181 "status x%x add_status x%x mbx "
7182 "status x%x\n", shdr_status,
7183 shdr_add_status, rc);
7184 break;
7185 }
7186 }
7187
7188 if (rc != MBX_TIMEOUT)
7189 mempool_free(mboxq, phba->mbox_mem_pool);
7190
7191 return cmdsent;
7192}
7193
da0436e9
JS		 7194/**
7195 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7196 * @phba: pointer to lpfc hba data structure.
7197 *
7198 * This routine is invoked to set up the PCI device memory space for device
7199 * with SLI-4 interface spec.
7200 *
7201 * Return codes
af901ca1 7202 * 0 - successful
da0436e9
JS		 7203 * other values - error
7204 **/
7205static int
7206lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
7207{
7208 struct pci_dev *pdev;
7209 unsigned long bar0map_len, bar1map_len, bar2map_len;
7210 int error = -ENODEV;
2fcee4bf 7211 uint32_t if_type;
da0436e9
JS		 7212
7213 /* Obtain PCI device reference */
7214 if (!phba->pcidev)
7215 return error;
7216 else
7217 pdev = phba->pcidev;
7218
7219 /* Set the device DMA mask size */
8e68597d
MR		 7220 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7221 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7222 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7223 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
da0436e9 7224 return error;
8e68597d
MR		 7225 }
7226 }
da0436e9 7227
2fcee4bf
JS		 7228 /*
7229 * The BARs and register set definitions and offset locations are
7230 * dependent on the if_type.
7231 */
7232 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7233 &phba->sli4_hba.sli_intf.word0)) {
7234 return error;
7235 }
7236
7237 /* There is no SLI3 failback for SLI4 devices. */
7238 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7239 LPFC_SLI_INTF_VALID) {
7240 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7241 "2894 SLI_INTF reg contents invalid "
7242 "sli_intf reg 0x%x\n",
7243 phba->sli4_hba.sli_intf.word0);
7244 return error;
7245 }
7246
7247 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7248 /*
7249 * Get the bus address of SLI4 device Bar regions and the
7250 * number of bytes required by each mapping. The mapping of the
7251 * particular PCI BARs regions is dependent on the type of
7252 * SLI4 device.
da0436e9 7253 */
1dfb5a47
JS		 7254 if (pci_resource_start(pdev, 0)) {
7255 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7256 bar0map_len = pci_resource_len(pdev, 0);
2fcee4bf
JS		 7257
7258 /*
7259 * Map SLI4 PCI Config Space Register base to a kernel virtual
7260 * addr
7261 */
7262 phba->sli4_hba.conf_regs_memmap_p =
7263 ioremap(phba->pci_bar0_map, bar0map_len);
7264 if (!phba->sli4_hba.conf_regs_memmap_p) {
7265 dev_printk(KERN_ERR, &pdev->dev,
7266 "ioremap failed for SLI4 PCI config "
7267 "registers.\n");
7268 goto out;
7269 }
7270 /* Set up BAR0 PCI config space register memory map */
7271 lpfc_sli4_bar0_register_memmap(phba, if_type);
1dfb5a47
JS		 7272 } else {
7273 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7274 bar0map_len = pci_resource_len(pdev, 1);
2fcee4bf
JS		 7275 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7276 dev_printk(KERN_ERR, &pdev->dev,
7277 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7278 goto out;
7279 }
7280 phba->sli4_hba.conf_regs_memmap_p =
da0436e9 7281 ioremap(phba->pci_bar0_map, bar0map_len);
2fcee4bf
JS		 7282 if (!phba->sli4_hba.conf_regs_memmap_p) {
7283 dev_printk(KERN_ERR, &pdev->dev,
7284 "ioremap failed for SLI4 PCI config "
7285 "registers.\n");
7286 goto out;
7287 }
7288 lpfc_sli4_bar0_register_memmap(phba, if_type);
da0436e9
JS		 7289 }
7290
c31098ce
JS		 7291 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7292 (pci_resource_start(pdev, 2))) {
2fcee4bf
JS		 7293 /*
7294 * Map SLI4 if type 0 HBA Control Register base to a kernel
7295 * virtual address and setup the registers.
7296 */
7297 phba->pci_bar1_map = pci_resource_start(pdev, 2);
7298 bar1map_len = pci_resource_len(pdev, 2);
7299 phba->sli4_hba.ctrl_regs_memmap_p =
da0436e9 7300 ioremap(phba->pci_bar1_map, bar1map_len);
2fcee4bf
JS		 7301 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7302 dev_printk(KERN_ERR, &pdev->dev,
da0436e9 7303 "ioremap failed for SLI4 HBA control registers.\n");
2fcee4bf
JS		 7304 goto out_iounmap_conf;
7305 }
7306 lpfc_sli4_bar1_register_memmap(phba);
da0436e9
JS		 7307 }
7308
c31098ce
JS		 7309 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7310 (pci_resource_start(pdev, 4))) {
2fcee4bf
JS		 7311 /*
7312 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7313 * virtual address and setup the registers.
7314 */
7315 phba->pci_bar2_map = pci_resource_start(pdev, 4);
7316 bar2map_len = pci_resource_len(pdev, 4);
7317 phba->sli4_hba.drbl_regs_memmap_p =
da0436e9 7318 ioremap(phba->pci_bar2_map, bar2map_len);
2fcee4bf
JS		 7319 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7320 dev_printk(KERN_ERR, &pdev->dev,
da0436e9 7321 "ioremap failed for SLI4 HBA doorbell registers.\n");
2fcee4bf
JS		 7322 goto out_iounmap_ctrl;
7323 }
7324 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7325 if (error)
7326 goto out_iounmap_all;
da0436e9
JS		 7327 }
7328
da0436e9
JS		 7329 return 0;
7330
7331out_iounmap_all:
7332 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7333out_iounmap_ctrl:
7334 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7335out_iounmap_conf:
7336 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7337out:
7338 return error;
7339}
7340
7341/**
7342 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7343 * @phba: pointer to lpfc hba data structure.
7344 *
7345 * This routine is invoked to unset the PCI device memory space for device
7346 * with SLI-4 interface spec.
7347 **/
7348static void
7349lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
7350{
7351 struct pci_dev *pdev;
7352
7353 /* Obtain PCI device reference */
7354 if (!phba->pcidev)
7355 return;
7356 else
7357 pdev = phba->pcidev;
7358
7359 /* Free coherent DMA memory allocated */
7360
7361 /* Unmap I/O memory space */
7362 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7363 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7364 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7365
7366 return;
7367}
7368
7369/**
7370 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7371 * @phba: pointer to lpfc hba data structure.
7372 *
7373 * This routine is invoked to enable the MSI-X interrupt vectors to device
7374 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7375 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7376 * invoked, enables either all or nothing, depending on the current
7377 * availability of PCI vector resources. The device driver is responsible
7378 * for calling the individual request_irq() to register each MSI-X vector
7379 * with a interrupt handler, which is done in this function. Note that
7380 * later when device is unloading, the driver should always call free_irq()
7381 * on all MSI-X vectors it has done request_irq() on before calling
7382 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7383 * will be left with MSI-X enabled and leaks its vectors.
7384 *
7385 * Return codes
af901ca1 7386 * 0 - successful
da0436e9
JS		 7387 * other values - error
7388 **/
7389static int
7390lpfc_sli_enable_msix(struct lpfc_hba *phba)
7391{
7392 int rc, i;
7393 LPFC_MBOXQ_t *pmb;
7394
7395 /* Set up MSI-X multi-message vectors */
7396 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7397 phba->msix_entries[i].entry = i;
7398
7399 /* Configure MSI-X capability structure */
7400 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
7401 ARRAY_SIZE(phba->msix_entries));
7402 if (rc) {
7403 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7404 "0420 PCI enable MSI-X failed (%d)\n", rc);
7405 goto msi_fail_out;
7406 }
7407 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7408 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7409 "0477 MSI-X entry[%d]: vector=x%x "
7410 "message=%d\n", i,
7411 phba->msix_entries[i].vector,
7412 phba->msix_entries[i].entry);
7413 /*
7414 * Assign MSI-X vectors to interrupt handlers
7415 */
7416
7417 /* vector-0 is associated to slow-path handler */
7418 rc = request_irq(phba->msix_entries[0].vector,
7419 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
7420 LPFC_SP_DRIVER_HANDLER_NAME, phba);
7421 if (rc) {
7422 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7423 "0421 MSI-X slow-path request_irq failed "
7424 "(%d)\n", rc);
7425 goto msi_fail_out;
7426 }
7427
7428 /* vector-1 is associated to fast-path handler */
7429 rc = request_irq(phba->msix_entries[1].vector,
7430 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
7431 LPFC_FP_DRIVER_HANDLER_NAME, phba);
7432
7433 if (rc) {
7434 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7435 "0429 MSI-X fast-path request_irq failed "
7436 "(%d)\n", rc);
7437 goto irq_fail_out;
7438 }
7439
7440 /*
7441 * Configure HBA MSI-X attention conditions to messages
7442 */
7443 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7444
7445 if (!pmb) {
7446 rc = -ENOMEM;
7447 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7448 "0474 Unable to allocate memory for issuing "
7449 "MBOX_CONFIG_MSI command\n");
7450 goto mem_fail_out;
7451 }
7452 rc = lpfc_config_msi(phba, pmb);
7453 if (rc)
7454 goto mbx_fail_out;
7455 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7456 if (rc != MBX_SUCCESS) {
7457 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
7458 "0351 Config MSI mailbox command failed, "
7459 "mbxCmd x%x, mbxStatus x%x\n",
7460 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
7461 goto mbx_fail_out;
7462 }
7463
7464 /* Free memory allocated for mailbox command */
7465 mempool_free(pmb, phba->mbox_mem_pool);
7466 return rc;
7467
7468mbx_fail_out:
7469 /* Free memory allocated for mailbox command */
7470 mempool_free(pmb, phba->mbox_mem_pool);
7471
7472mem_fail_out:
7473 /* free the irq already requested */
7474 free_irq(phba->msix_entries[1].vector, phba);
7475
7476irq_fail_out:
7477 /* free the irq already requested */
7478 free_irq(phba->msix_entries[0].vector, phba);
7479
7480msi_fail_out:
7481 /* Unconfigure MSI-X capability structure */
7482 pci_disable_msix(phba->pcidev);
7483 return rc;
7484}
7485
7486/**
7487 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
7488 * @phba: pointer to lpfc hba data structure.
7489 *
7490 * This routine is invoked to release the MSI-X vectors and then disable the
7491 * MSI-X interrupt mode to device with SLI-3 interface spec.
7492 **/
7493static void
7494lpfc_sli_disable_msix(struct lpfc_hba *phba)
7495{
7496 int i;
7497
7498 /* Free up MSI-X multi-message vectors */
7499 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7500 free_irq(phba->msix_entries[i].vector, phba);
7501 /* Disable MSI-X */
7502 pci_disable_msix(phba->pcidev);
7503
7504 return;
7505}
7506
7507/**
7508 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
7509 * @phba: pointer to lpfc hba data structure.
7510 *
7511 * This routine is invoked to enable the MSI interrupt mode to device with
7512 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
7513 * enable the MSI vector. The device driver is responsible for calling the
7514 * request_irq() to register MSI vector with a interrupt the handler, which
7515 * is done in this function.
7516 *
7517 * Return codes
af901ca1 7518 * 0 - successful
da0436e9
JS		 7519 * other values - error
7520 */
7521static int
7522lpfc_sli_enable_msi(struct lpfc_hba *phba)
7523{
7524 int rc;
7525
7526 rc = pci_enable_msi(phba->pcidev);
7527 if (!rc)
7528 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7529 "0462 PCI enable MSI mode success.\n");
7530 else {
7531 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7532 "0471 PCI enable MSI mode failed (%d)\n", rc);
7533 return rc;
7534 }
7535
7536 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7537 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7538 if (rc) {
7539 pci_disable_msi(phba->pcidev);
7540 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7541 "0478 MSI request_irq failed (%d)\n", rc);
7542 }
7543 return rc;
7544}
7545
7546/**
7547 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
7548 * @phba: pointer to lpfc hba data structure.
7549 *
7550 * This routine is invoked to disable the MSI interrupt mode to device with
7551 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
7552 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7553 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7554 * its vector.
7555 */
7556static void
7557lpfc_sli_disable_msi(struct lpfc_hba *phba)
7558{
7559 free_irq(phba->pcidev->irq, phba);
7560 pci_disable_msi(phba->pcidev);
7561 return;
7562}
7563
7564/**
7565 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
7566 * @phba: pointer to lpfc hba data structure.
7567 *
7568 * This routine is invoked to enable device interrupt and associate driver's
7569 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
7570 * spec. Depends on the interrupt mode configured to the driver, the driver
7571 * will try to fallback from the configured interrupt mode to an interrupt
7572 * mode which is supported by the platform, kernel, and device in the order
7573 * of:
7574 * MSI-X -> MSI -> IRQ.
7575 *
7576 * Return codes
af901ca1 7577 * 0 - successful
da0436e9
JS		 7578 * other values - error
7579 **/
7580static uint32_t
7581lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7582{
7583 uint32_t intr_mode = LPFC_INTR_ERROR;
7584 int retval;
7585
7586 if (cfg_mode == 2) {
7587 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
7588 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
7589 if (!retval) {
7590 /* Now, try to enable MSI-X interrupt mode */
7591 retval = lpfc_sli_enable_msix(phba);
7592 if (!retval) {
7593 /* Indicate initialization to MSI-X mode */
7594 phba->intr_type = MSIX;
7595 intr_mode = 2;
7596 }
7597 }
7598 }
7599
7600 /* Fallback to MSI if MSI-X initialization failed */
7601 if (cfg_mode >= 1 && phba->intr_type == NONE) {
7602 retval = lpfc_sli_enable_msi(phba);
7603 if (!retval) {
7604 /* Indicate initialization to MSI mode */
7605 phba->intr_type = MSI;
7606 intr_mode = 1;
7607 }
7608 }
7609
7610 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7611 if (phba->intr_type == NONE) {
7612 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7613 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7614 if (!retval) {
7615 /* Indicate initialization to INTx mode */
7616 phba->intr_type = INTx;
7617 intr_mode = 0;
7618 }
7619 }
7620 return intr_mode;
7621}
7622
7623/**
7624 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
7625 * @phba: pointer to lpfc hba data structure.
7626 *
7627 * This routine is invoked to disable device interrupt and disassociate the
7628 * driver's interrupt handler(s) from interrupt vector(s) to device with
7629 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
7630 * release the interrupt vector(s) for the message signaled interrupt.
7631 **/
7632static void
7633lpfc_sli_disable_intr(struct lpfc_hba *phba)
7634{
7635 /* Disable the currently initialized interrupt mode */
7636 if (phba->intr_type == MSIX)
7637 lpfc_sli_disable_msix(phba);
7638 else if (phba->intr_type == MSI)
7639 lpfc_sli_disable_msi(phba);
7640 else if (phba->intr_type == INTx)
7641 free_irq(phba->pcidev->irq, phba);
7642
7643 /* Reset interrupt management states */
7644 phba->intr_type = NONE;
7645 phba->sli.slistat.sli_intr = 0;
7646
7647 return;
7648}
7649
7650/**
7651 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
7652 * @phba: pointer to lpfc hba data structure.
7653 *
7654 * This routine is invoked to enable the MSI-X interrupt vectors to device
7655 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
7656 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
7657 * enables either all or nothing, depending on the current availability of
7658 * PCI vector resources. The device driver is responsible for calling the
7659 * individual request_irq() to register each MSI-X vector with a interrupt
7660 * handler, which is done in this function. Note that later when device is
7661 * unloading, the driver should always call free_irq() on all MSI-X vectors
7662 * it has done request_irq() on before calling pci_disable_msix(). Failure
7663 * to do so results in a BUG_ON() and a device will be left with MSI-X
7664 * enabled and leaks its vectors.
7665 *
7666 * Return codes
af901ca1 7667 * 0 - successful
da0436e9
JS		 7668 * other values - error
7669 **/
7670static int
7671lpfc_sli4_enable_msix(struct lpfc_hba *phba)
7672{
75baf696 7673 int vectors, rc, index;
da0436e9
JS		 7674
7675 /* Set up MSI-X multi-message vectors */
7676 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
7677 phba->sli4_hba.msix_entries[index].entry = index;
7678
7679 /* Configure MSI-X capability structure */
75baf696
JS		 7680 vectors = phba->sli4_hba.cfg_eqn;
7681enable_msix_vectors:
da0436e9 7682 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
75baf696
JS		 7683 vectors);
7684 if (rc > 1) {
7685 vectors = rc;
7686 goto enable_msix_vectors;
7687 } else if (rc) {
da0436e9
JS		 7688 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7689 "0484 PCI enable MSI-X failed (%d)\n", rc);
7690 goto msi_fail_out;
7691 }
75baf696 7692
da0436e9 7693 /* Log MSI-X vector assignment */
75baf696 7694 for (index = 0; index < vectors; index++)
da0436e9
JS		 7695 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7696 "0489 MSI-X entry[%d]: vector=x%x "
7697 "message=%d\n", index,
7698 phba->sli4_hba.msix_entries[index].vector,
7699 phba->sli4_hba.msix_entries[index].entry);
7700 /*
7701 * Assign MSI-X vectors to interrupt handlers
7702 */
0558056c
JS		 7703 if (vectors > 1)
7704 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7705 &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
7706 LPFC_SP_DRIVER_HANDLER_NAME, phba);
7707 else
7708 /* All Interrupts need to be handled by one EQ */
7709 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7710 &lpfc_sli4_intr_handler, IRQF_SHARED,
7711 LPFC_DRIVER_NAME, phba);
da0436e9
JS		 7712 if (rc) {
7713 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7714 "0485 MSI-X slow-path request_irq failed "
7715 "(%d)\n", rc);
7716 goto msi_fail_out;
7717 }
7718
7719 /* The rest of the vector(s) are associated to fast-path handler(s) */
75baf696 7720 for (index = 1; index < vectors; index++) {
da0436e9
JS		 7721 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
7722 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
7723 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
7724 &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
7725 LPFC_FP_DRIVER_HANDLER_NAME,
7726 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7727 if (rc) {
7728 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7729 "0486 MSI-X fast-path (%d) "
7730 "request_irq failed (%d)\n", index, rc);
7731 goto cfg_fail_out;
7732 }
7733 }
75baf696 7734 phba->sli4_hba.msix_vec_nr = vectors;
da0436e9
JS		 7735
7736 return rc;
7737
7738cfg_fail_out:
7739 /* free the irq already requested */
7740 for (--index; index >= 1; index--)
7741 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
7742 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7743
7744 /* free the irq already requested */
7745 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7746
7747msi_fail_out:
7748 /* Unconfigure MSI-X capability structure */
7749 pci_disable_msix(phba->pcidev);
7750 return rc;
7751}
7752
7753/**
7754 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7755 * @phba: pointer to lpfc hba data structure.
7756 *
7757 * This routine is invoked to release the MSI-X vectors and then disable the
7758 * MSI-X interrupt mode to device with SLI-4 interface spec.
7759 **/
7760static void
7761lpfc_sli4_disable_msix(struct lpfc_hba *phba)
7762{
7763 int index;
7764
7765 /* Free up MSI-X multi-message vectors */
7766 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7767
75baf696 7768 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
da0436e9
JS		 7769 free_irq(phba->sli4_hba.msix_entries[index].vector,
7770 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
75baf696 7771
da0436e9
JS		 7772 /* Disable MSI-X */
7773 pci_disable_msix(phba->pcidev);
7774
7775 return;
7776}
7777
7778/**
7779 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7780 * @phba: pointer to lpfc hba data structure.
7781 *
7782 * This routine is invoked to enable the MSI interrupt mode to device with
7783 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7784 * to enable the MSI vector. The device driver is responsible for calling
7785 * the request_irq() to register MSI vector with a interrupt the handler,
7786 * which is done in this function.
7787 *
7788 * Return codes
af901ca1 7789 * 0 - successful
da0436e9
JS		 7790 * other values - error
7791 **/
7792static int
7793lpfc_sli4_enable_msi(struct lpfc_hba *phba)
7794{
7795 int rc, index;
7796
7797 rc = pci_enable_msi(phba->pcidev);
7798 if (!rc)
7799 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7800 "0487 PCI enable MSI mode success.\n");
7801 else {
7802 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7803 "0488 PCI enable MSI mode failed (%d)\n", rc);
7804 return rc;
7805 }
7806
7807 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7808 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7809 if (rc) {
7810 pci_disable_msi(phba->pcidev);
7811 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7812 "0490 MSI request_irq failed (%d)\n", rc);
75baf696 7813 return rc;
da0436e9
JS		 7814 }
7815
7816 for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
7817 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7818 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7819 }
7820
75baf696 7821 return 0;
da0436e9
JS		 7822}
7823
7824/**
7825 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7826 * @phba: pointer to lpfc hba data structure.
7827 *
7828 * This routine is invoked to disable the MSI interrupt mode to device with
7829 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7830 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7831 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7832 * its vector.
7833 **/
7834static void
7835lpfc_sli4_disable_msi(struct lpfc_hba *phba)
7836{
7837 free_irq(phba->pcidev->irq, phba);
7838 pci_disable_msi(phba->pcidev);
7839 return;
7840}
7841
7842/**
7843 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7844 * @phba: pointer to lpfc hba data structure.
7845 *
7846 * This routine is invoked to enable device interrupt and associate driver's
7847 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7848 * interface spec. Depends on the interrupt mode configured to the driver,
7849 * the driver will try to fallback from the configured interrupt mode to an
7850 * interrupt mode which is supported by the platform, kernel, and device in
7851 * the order of:
7852 * MSI-X -> MSI -> IRQ.
7853 *
7854 * Return codes
af901ca1 7855 * 0 - successful
da0436e9
JS		 7856 * other values - error
7857 **/
7858static uint32_t
7859lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7860{
7861 uint32_t intr_mode = LPFC_INTR_ERROR;
7862 int retval, index;
7863
7864 if (cfg_mode == 2) {
7865 /* Preparation before conf_msi mbox cmd */
7866 retval = 0;
7867 if (!retval) {
7868 /* Now, try to enable MSI-X interrupt mode */
7869 retval = lpfc_sli4_enable_msix(phba);
7870 if (!retval) {
7871 /* Indicate initialization to MSI-X mode */
7872 phba->intr_type = MSIX;
7873 intr_mode = 2;
7874 }
7875 }
7876 }
7877
7878 /* Fallback to MSI if MSI-X initialization failed */
7879 if (cfg_mode >= 1 && phba->intr_type == NONE) {
7880 retval = lpfc_sli4_enable_msi(phba);
7881 if (!retval) {
7882 /* Indicate initialization to MSI mode */
7883 phba->intr_type = MSI;
7884 intr_mode = 1;
7885 }
7886 }
7887
7888 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7889 if (phba->intr_type == NONE) {
7890 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7891 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7892 if (!retval) {
7893 /* Indicate initialization to INTx mode */
7894 phba->intr_type = INTx;
7895 intr_mode = 0;
7896 for (index = 0; index < phba->cfg_fcp_eq_count;
7897 index++) {
7898 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7899 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7900 }
7901 }
7902 }
7903 return intr_mode;
7904}
7905
7906/**
7907 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7908 * @phba: pointer to lpfc hba data structure.
7909 *
7910 * This routine is invoked to disable device interrupt and disassociate
7911 * the driver's interrupt handler(s) from interrupt vector(s) to device
7912 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7913 * will release the interrupt vector(s) for the message signaled interrupt.
7914 **/
7915static void
7916lpfc_sli4_disable_intr(struct lpfc_hba *phba)
7917{
7918 /* Disable the currently initialized interrupt mode */
7919 if (phba->intr_type == MSIX)
7920 lpfc_sli4_disable_msix(phba);
7921 else if (phba->intr_type == MSI)
7922 lpfc_sli4_disable_msi(phba);
7923 else if (phba->intr_type == INTx)
7924 free_irq(phba->pcidev->irq, phba);
7925
7926 /* Reset interrupt management states */
7927 phba->intr_type = NONE;
7928 phba->sli.slistat.sli_intr = 0;
7929
7930 return;
7931}
7932
7933/**
7934 * lpfc_unset_hba - Unset SLI3 hba device initialization
7935 * @phba: pointer to lpfc hba data structure.
7936 *
7937 * This routine is invoked to unset the HBA device initialization steps to
7938 * a device with SLI-3 interface spec.
7939 **/
7940static void
7941lpfc_unset_hba(struct lpfc_hba *phba)
7942{
7943 struct lpfc_vport *vport = phba->pport;
7944 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7945
7946 spin_lock_irq(shost->host_lock);
7947 vport->load_flag |= FC_UNLOADING;
7948 spin_unlock_irq(shost->host_lock);
7949
7950 lpfc_stop_hba_timers(phba);
7951
7952 phba->pport->work_port_events = 0;
7953
7954 lpfc_sli_hba_down(phba);
7955
7956 lpfc_sli_brdrestart(phba);
7957
7958 lpfc_sli_disable_intr(phba);
7959
7960 return;
7961}
7962
7963/**
7964 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7965 * @phba: pointer to lpfc hba data structure.
7966 *
7967 * This routine is invoked to unset the HBA device initialization steps to
7968 * a device with SLI-4 interface spec.
7969 **/
7970static void
7971lpfc_sli4_unset_hba(struct lpfc_hba *phba)
7972{
7973 struct lpfc_vport *vport = phba->pport;
7974 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7975
7976 spin_lock_irq(shost->host_lock);
7977 vport->load_flag |= FC_UNLOADING;
7978 spin_unlock_irq(shost->host_lock);
7979
7980 phba->pport->work_port_events = 0;
7981
3677a3a7
JS		 7982 /* Stop the SLI4 device port */
7983 lpfc_stop_port(phba);
da0436e9
JS		 7984
7985 lpfc_sli4_disable_intr(phba);
7986
3677a3a7
JS		 7987 /* Reset SLI4 HBA FCoE function */
7988 lpfc_pci_function_reset(phba);
7989
da0436e9
JS		 7990 return;
7991}
7992
5af5eee7
JS		 7993/**
7994 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
7995 * @phba: Pointer to HBA context object.
7996 *
7997 * This function is called in the SLI4 code path to wait for completion
7998 * of device's XRIs exchange busy. It will check the XRI exchange busy
7999 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
8000 * that, it will check the XRI exchange busy on outstanding FCP and ELS
8001 * I/Os every 30 seconds, log error message, and wait forever. Only when
8002 * all XRI exchange busy complete, the driver unload shall proceed with
8003 * invoking the function reset ioctl mailbox command to the CNA and the
8004 * the rest of the driver unload resource release.
8005 **/
8006static void
8007lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
8008{
8009 int wait_time = 0;
8010 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8011 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8012
8013 while (!fcp_xri_cmpl || !els_xri_cmpl) {
8014 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
8015 if (!fcp_xri_cmpl)
8016 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8017 "2877 FCP XRI exchange busy "
8018 "wait time: %d seconds.\n",
8019 wait_time/1000);
8020 if (!els_xri_cmpl)
8021 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8022 "2878 ELS XRI exchange busy "
8023 "wait time: %d seconds.\n",
8024 wait_time/1000);
8025 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
8026 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
8027 } else {
8028 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
8029 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
8030 }
8031 fcp_xri_cmpl =
8032 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8033 els_xri_cmpl =
8034 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8035 }
8036}
8037
da0436e9
JS		 8038/**
8039 * lpfc_sli4_hba_unset - Unset the fcoe hba
8040 * @phba: Pointer to HBA context object.
8041 *
8042 * This function is called in the SLI4 code path to reset the HBA's FCoE
8043 * function. The caller is not required to hold any lock. This routine
8044 * issues PCI function reset mailbox command to reset the FCoE function.
8045 * At the end of the function, it calls lpfc_hba_down_post function to
8046 * free any pending commands.
8047 **/
8048static void
8049lpfc_sli4_hba_unset(struct lpfc_hba *phba)
8050{
8051 int wait_cnt = 0;
8052 LPFC_MBOXQ_t *mboxq;
912e3acd 8053 struct pci_dev *pdev = phba->pcidev;
da0436e9
JS		 8054
8055 lpfc_stop_hba_timers(phba);
8056 phba->sli4_hba.intr_enable = 0;
8057
8058 /*
8059 * Gracefully wait out the potential current outstanding asynchronous
8060 * mailbox command.
8061 */
8062
8063 /* First, block any pending async mailbox command from posted */
8064 spin_lock_irq(&phba->hbalock);
8065 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8066 spin_unlock_irq(&phba->hbalock);
8067 /* Now, trying to wait it out if we can */
8068 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8069 msleep(10);
8070 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
8071 break;
8072 }
8073 /* Forcefully release the outstanding mailbox command if timed out */
8074 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8075 spin_lock_irq(&phba->hbalock);
8076 mboxq = phba->sli.mbox_active;
8077 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8078 __lpfc_mbox_cmpl_put(phba, mboxq);
8079 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8080 phba->sli.mbox_active = NULL;
8081 spin_unlock_irq(&phba->hbalock);
8082 }
8083
5af5eee7
JS		 8084 /* Abort all iocbs associated with the hba */
8085 lpfc_sli_hba_iocb_abort(phba);
8086
8087 /* Wait for completion of device XRI exchange busy */
8088 lpfc_sli4_xri_exchange_busy_wait(phba);
8089
da0436e9
JS		 8090 /* Disable PCI subsystem interrupt */
8091 lpfc_sli4_disable_intr(phba);
8092
912e3acd
JS		 8093 /* Disable SR-IOV if enabled */
8094 if (phba->cfg_sriov_nr_virtfn)
8095 pci_disable_sriov(pdev);
8096
da0436e9
JS		 8097 /* Stop kthread signal shall trigger work_done one more time */
8098 kthread_stop(phba->worker_thread);
8099
3677a3a7
JS		 8100 /* Reset SLI4 HBA FCoE function */
8101 lpfc_pci_function_reset(phba);
8102
da0436e9
JS		 8103 /* Stop the SLI4 device port */
8104 phba->pport->work_port_events = 0;
8105}
8106
28baac74
JS		 8107 /**
8108 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
8109 * @phba: Pointer to HBA context object.
8110 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8111 *
8112 * This function is called in the SLI4 code path to read the port's
8113 * sli4 capabilities.
8114 *
8115 * This function may be be called from any context that can block-wait
8116 * for the completion. The expectation is that this routine is called
8117 * typically from probe_one or from the online routine.
8118 **/
8119int
8120lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8121{
8122 int rc;
8123 struct lpfc_mqe *mqe;
8124 struct lpfc_pc_sli4_params *sli4_params;
8125 uint32_t mbox_tmo;
8126
8127 rc = 0;
8128 mqe = &mboxq->u.mqe;
8129
8130 /* Read the port's SLI4 Parameters port capabilities */
fedd3b7b 8131 lpfc_pc_sli4_params(mboxq);
28baac74
JS		 8132 if (!phba->sli4_hba.intr_enable)
8133 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8134 else {
a183a15f 8135 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
28baac74
JS		 8136 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8137 }
8138
8139 if (unlikely(rc))
8140 return 1;
8141
8142 sli4_params = &phba->sli4_hba.pc_sli4_params;
8143 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
8144 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
8145 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
8146 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
8147 &mqe->un.sli4_params);
8148 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
8149 &mqe->un.sli4_params);
8150 sli4_params->proto_types = mqe->un.sli4_params.word3;
8151 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
8152 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
8153 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
8154 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
8155 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
8156 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
8157 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
8158 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
8159 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
8160 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
8161 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
8162 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
8163 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
8164 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
8165 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
8166 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
8167 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
8168 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
8169 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
8170 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
0558056c
JS		 8171
8172 /* Make sure that sge_supp_len can be handled by the driver */
8173 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8174 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8175
28baac74
JS		 8176 return rc;
8177}
8178
fedd3b7b
JS		 8179/**
8180 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
8181 * @phba: Pointer to HBA context object.
8182 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8183 *
8184 * This function is called in the SLI4 code path to read the port's
8185 * sli4 capabilities.
8186 *
8187 * This function may be be called from any context that can block-wait
8188 * for the completion. The expectation is that this routine is called
8189 * typically from probe_one or from the online routine.
8190 **/
8191int
8192lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8193{
8194 int rc;
8195 struct lpfc_mqe *mqe = &mboxq->u.mqe;
8196 struct lpfc_pc_sli4_params *sli4_params;
a183a15f 8197 uint32_t mbox_tmo;
fedd3b7b
JS		 8198 int length;
8199 struct lpfc_sli4_parameters *mbx_sli4_parameters;
8200
6d368e53
JS		 8201 /*
8202 * By default, the driver assumes the SLI4 port requires RPI
8203 * header postings. The SLI4_PARAM response will correct this
8204 * assumption.
8205 */
8206 phba->sli4_hba.rpi_hdrs_in_use = 1;
8207
fedd3b7b
JS		 8208 /* Read the port's SLI4 Config Parameters */
8209 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
8210 sizeof(struct lpfc_sli4_cfg_mhdr));
8211 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8212 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
8213 length, LPFC_SLI4_MBX_EMBED);
8214 if (!phba->sli4_hba.intr_enable)
8215 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
a183a15f
JS		 8216 else {
8217 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
8218 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8219 }
fedd3b7b
JS		 8220 if (unlikely(rc))
8221 return rc;
8222 sli4_params = &phba->sli4_hba.pc_sli4_params;
8223 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
8224 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
8225 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
8226 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
8227 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
8228 mbx_sli4_parameters);
8229 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
8230 mbx_sli4_parameters);
8231 if (bf_get(cfg_phwq, mbx_sli4_parameters))
8232 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
8233 else
8234 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
8235 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
8236 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
8237 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
8238 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
8239 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
8240 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
8241 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
8242 mbx_sli4_parameters);
8243 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
8244 mbx_sli4_parameters);
6d368e53
JS		 8245 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
8246 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
0558056c
JS		 8247
8248 /* Make sure that sge_supp_len can be handled by the driver */
8249 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8250 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8251
fedd3b7b
JS		 8252 return 0;
8253}
8254
da0436e9
JS		 8255/**
8256 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
8257 * @pdev: pointer to PCI device
8258 * @pid: pointer to PCI device identifier
8259 *
8260 * This routine is to be called to attach a device with SLI-3 interface spec
8261 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8262 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8263 * information of the device and driver to see if the driver state that it can
8264 * support this kind of device. If the match is successful, the driver core
8265 * invokes this routine. If this routine determines it can claim the HBA, it
8266 * does all the initialization that it needs to do to handle the HBA properly.
8267 *
8268 * Return code
8269 * 0 - driver can claim the device
8270 * negative value - driver can not claim the device
8271 **/
8272static int __devinit
8273lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
8274{
8275 struct lpfc_hba *phba;
8276 struct lpfc_vport *vport = NULL;
6669f9bb 8277 struct Scsi_Host *shost = NULL;
da0436e9
JS		 8278 int error;
8279 uint32_t cfg_mode, intr_mode;
8280
8281 /* Allocate memory for HBA structure */
8282 phba = lpfc_hba_alloc(pdev);
8283 if (!phba)
8284 return -ENOMEM;
8285
8286 /* Perform generic PCI device enabling operation */
8287 error = lpfc_enable_pci_dev(phba);
079b5c91 8288 if (error)
da0436e9 8289 goto out_free_phba;
da0436e9
JS		 8290
8291 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
8292 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
8293 if (error)
8294 goto out_disable_pci_dev;
8295
8296 /* Set up SLI-3 specific device PCI memory space */
8297 error = lpfc_sli_pci_mem_setup(phba);
8298 if (error) {
8299 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8300 "1402 Failed to set up pci memory space.\n");
8301 goto out_disable_pci_dev;
8302 }
8303
8304 /* Set up phase-1 common device driver resources */
8305 error = lpfc_setup_driver_resource_phase1(phba);
8306 if (error) {
8307 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8308 "1403 Failed to set up driver resource.\n");
8309 goto out_unset_pci_mem_s3;
8310 }
8311
8312 /* Set up SLI-3 specific device driver resources */
8313 error = lpfc_sli_driver_resource_setup(phba);
8314 if (error) {
8315 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8316 "1404 Failed to set up driver resource.\n");
8317 goto out_unset_pci_mem_s3;
8318 }
8319
8320 /* Initialize and populate the iocb list per host */
8321 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
8322 if (error) {
8323 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8324 "1405 Failed to initialize iocb list.\n");
8325 goto out_unset_driver_resource_s3;
8326 }
8327
8328 /* Set up common device driver resources */
8329 error = lpfc_setup_driver_resource_phase2(phba);
8330 if (error) {
8331 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8332 "1406 Failed to set up driver resource.\n");
8333 goto out_free_iocb_list;
8334 }
8335
079b5c91
JS		 8336 /* Get the default values for Model Name and Description */
8337 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
8338
da0436e9
JS		 8339 /* Create SCSI host to the physical port */
8340 error = lpfc_create_shost(phba);
8341 if (error) {
8342 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8343 "1407 Failed to create scsi host.\n");
8344 goto out_unset_driver_resource;
8345 }
8346
8347 /* Configure sysfs attributes */
8348 vport = phba->pport;
8349 error = lpfc_alloc_sysfs_attr(vport);
8350 if (error) {
8351 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8352 "1476 Failed to allocate sysfs attr\n");
8353 goto out_destroy_shost;
8354 }
8355
6669f9bb 8356 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
da0436e9
JS		 8357 /* Now, trying to enable interrupt and bring up the device */
8358 cfg_mode = phba->cfg_use_msi;
8359 while (true) {
8360 /* Put device to a known state before enabling interrupt */
8361 lpfc_stop_port(phba);
8362 /* Configure and enable interrupt */
8363 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
8364 if (intr_mode == LPFC_INTR_ERROR) {
8365 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8366 "0431 Failed to enable interrupt.\n");
8367 error = -ENODEV;
8368 goto out_free_sysfs_attr;
8369 }
8370 /* SLI-3 HBA setup */
8371 if (lpfc_sli_hba_setup(phba)) {
8372 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8373 "1477 Failed to set up hba\n");
8374 error = -ENODEV;
8375 goto out_remove_device;
8376 }
8377
8378 /* Wait 50ms for the interrupts of previous mailbox commands */
8379 msleep(50);
8380 /* Check active interrupts on message signaled interrupts */
8381 if (intr_mode == 0 ||
8382 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
8383 /* Log the current active interrupt mode */
8384 phba->intr_mode = intr_mode;
8385 lpfc_log_intr_mode(phba, intr_mode);
8386 break;
8387 } else {
8388 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8389 "0447 Configure interrupt mode (%d) "
8390 "failed active interrupt test.\n",
8391 intr_mode);
8392 /* Disable the current interrupt mode */
8393 lpfc_sli_disable_intr(phba);
8394 /* Try next level of interrupt mode */
8395 cfg_mode = --intr_mode;
8396 }
8397 }
8398
8399 /* Perform post initialization setup */
8400 lpfc_post_init_setup(phba);
8401
8402 /* Check if there are static vports to be created. */
8403 lpfc_create_static_vport(phba);
8404
8405 return 0;
8406
8407out_remove_device:
8408 lpfc_unset_hba(phba);
8409out_free_sysfs_attr:
8410 lpfc_free_sysfs_attr(vport);
8411out_destroy_shost:
8412 lpfc_destroy_shost(phba);
8413out_unset_driver_resource:
8414 lpfc_unset_driver_resource_phase2(phba);
8415out_free_iocb_list:
8416 lpfc_free_iocb_list(phba);
8417out_unset_driver_resource_s3:
8418 lpfc_sli_driver_resource_unset(phba);
8419out_unset_pci_mem_s3:
8420 lpfc_sli_pci_mem_unset(phba);
8421out_disable_pci_dev:
8422 lpfc_disable_pci_dev(phba);
6669f9bb
JS		 8423 if (shost)
8424 scsi_host_put(shost);
da0436e9
JS		 8425out_free_phba:
8426 lpfc_hba_free(phba);
8427 return error;
8428}
8429
8430/**
8431 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8432 * @pdev: pointer to PCI device
8433 *
8434 * This routine is to be called to disattach a device with SLI-3 interface
8435 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8436 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8437 * device to be removed from the PCI subsystem properly.
8438 **/
8439static void __devexit
8440lpfc_pci_remove_one_s3(struct pci_dev *pdev)
8441{
8442 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8443 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8444 struct lpfc_vport **vports;
8445 struct lpfc_hba *phba = vport->phba;
8446 int i;
8447 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
8448
8449 spin_lock_irq(&phba->hbalock);
8450 vport->load_flag |= FC_UNLOADING;
8451 spin_unlock_irq(&phba->hbalock);
8452
8453 lpfc_free_sysfs_attr(vport);
8454
8455 /* Release all the vports against this physical port */
8456 vports = lpfc_create_vport_work_array(phba);
8457 if (vports != NULL)
8458 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8459 fc_vport_terminate(vports[i]->fc_vport);
8460 lpfc_destroy_vport_work_array(phba, vports);
8461
8462 /* Remove FC host and then SCSI host with the physical port */
8463 fc_remove_host(shost);
8464 scsi_remove_host(shost);
8465 lpfc_cleanup(vport);
8466
8467 /*
8468 * Bring down the SLI Layer. This step disable all interrupts,
8469 * clears the rings, discards all mailbox commands, and resets
8470 * the HBA.
8471 */
8472
48e34d0f 8473 /* HBA interrupt will be disabled after this call */
da0436e9
JS		 8474 lpfc_sli_hba_down(phba);
8475 /* Stop kthread signal shall trigger work_done one more time */
8476 kthread_stop(phba->worker_thread);
8477 /* Final cleanup of txcmplq and reset the HBA */
8478 lpfc_sli_brdrestart(phba);
8479
8480 lpfc_stop_hba_timers(phba);
8481 spin_lock_irq(&phba->hbalock);
8482 list_del_init(&vport->listentry);
8483 spin_unlock_irq(&phba->hbalock);
8484
8485 lpfc_debugfs_terminate(vport);
8486
912e3acd
JS		 8487 /* Disable SR-IOV if enabled */
8488 if (phba->cfg_sriov_nr_virtfn)
8489 pci_disable_sriov(pdev);
8490
da0436e9
JS		 8491 /* Disable interrupt */
8492 lpfc_sli_disable_intr(phba);
8493
8494 pci_set_drvdata(pdev, NULL);
8495 scsi_host_put(shost);
8496
8497 /*
8498 * Call scsi_free before mem_free since scsi bufs are released to their
8499 * corresponding pools here.
8500 */
8501 lpfc_scsi_free(phba);
8502 lpfc_mem_free_all(phba);
8503
8504 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
8505 phba->hbqslimp.virt, phba->hbqslimp.phys);
8506
8507 /* Free resources associated with SLI2 interface */
8508 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
8509 phba->slim2p.virt, phba->slim2p.phys);
8510
8511 /* unmap adapter SLIM and Control Registers */
8512 iounmap(phba->ctrl_regs_memmap_p);
8513 iounmap(phba->slim_memmap_p);
8514
8515 lpfc_hba_free(phba);
8516
8517 pci_release_selected_regions(pdev, bars);
8518 pci_disable_device(pdev);
8519}
8520
8521/**
8522 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
8523 * @pdev: pointer to PCI device
8524 * @msg: power management message
8525 *
8526 * This routine is to be called from the kernel's PCI subsystem to support
8527 * system Power Management (PM) to device with SLI-3 interface spec. When
8528 * PM invokes this method, it quiesces the device by stopping the driver's
8529 * worker thread for the device, turning off device's interrupt and DMA,
8530 * and bring the device offline. Note that as the driver implements the
8531 * minimum PM requirements to a power-aware driver's PM support for the
8532 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8533 * to the suspend() method call will be treated as SUSPEND and the driver will
8534 * fully reinitialize its device during resume() method call, the driver will
8535 * set device to PCI_D3hot state in PCI config space instead of setting it
8536 * according to the @msg provided by the PM.
8537 *
8538 * Return code
8539 * 0 - driver suspended the device
8540 * Error otherwise
8541 **/
8542static int
8543lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
8544{
8545 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8546 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8547
8548 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8549 "0473 PCI device Power Management suspend.\n");
8550
8551 /* Bring down the device */
8552 lpfc_offline_prep(phba);
8553 lpfc_offline(phba);
8554 kthread_stop(phba->worker_thread);
8555
8556 /* Disable interrupt from device */
8557 lpfc_sli_disable_intr(phba);
8558
8559 /* Save device state to PCI config space */
8560 pci_save_state(pdev);
8561 pci_set_power_state(pdev, PCI_D3hot);
8562
8563 return 0;
8564}
8565
8566/**
8567 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
8568 * @pdev: pointer to PCI device
8569 *
8570 * This routine is to be called from the kernel's PCI subsystem to support
8571 * system Power Management (PM) to device with SLI-3 interface spec. When PM
8572 * invokes this method, it restores the device's PCI config space state and
8573 * fully reinitializes the device and brings it online. Note that as the
8574 * driver implements the minimum PM requirements to a power-aware driver's
8575 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
8576 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
8577 * driver will fully reinitialize its device during resume() method call,
8578 * the device will be set to PCI_D0 directly in PCI config space before
8579 * restoring the state.
8580 *
8581 * Return code
8582 * 0 - driver suspended the device
8583 * Error otherwise
8584 **/
8585static int
8586lpfc_pci_resume_one_s3(struct pci_dev *pdev)
8587{
8588 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8589 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8590 uint32_t intr_mode;
8591 int error;
8592
8593 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8594 "0452 PCI device Power Management resume.\n");
8595
8596 /* Restore device state from PCI config space */
8597 pci_set_power_state(pdev, PCI_D0);
8598 pci_restore_state(pdev);
0d878419 8599
1dfb5a47
JS		 8600 /*
8601 * As the new kernel behavior of pci_restore_state() API call clears
8602 * device saved_state flag, need to save the restored state again.
8603 */
8604 pci_save_state(pdev);
8605
da0436e9
JS		 8606 if (pdev->is_busmaster)
8607 pci_set_master(pdev);
8608
8609 /* Startup the kernel thread for this host adapter. */
8610 phba->worker_thread = kthread_run(lpfc_do_work, phba,
8611 "lpfc_worker_%d", phba->brd_no);
8612 if (IS_ERR(phba->worker_thread)) {
8613 error = PTR_ERR(phba->worker_thread);
8614 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8615 "0434 PM resume failed to start worker "
8616 "thread: error=x%x.\n", error);
8617 return error;
8618 }
8619
8620 /* Configure and enable interrupt */
8621 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8622 if (intr_mode == LPFC_INTR_ERROR) {
8623 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8624 "0430 PM resume Failed to enable interrupt\n");
8625 return -EIO;
8626 } else
8627 phba->intr_mode = intr_mode;
8628
8629 /* Restart HBA and bring it online */
8630 lpfc_sli_brdrestart(phba);
8631 lpfc_online(phba);
8632
8633 /* Log the current active interrupt mode */
8634 lpfc_log_intr_mode(phba, phba->intr_mode);
8635
8636 return 0;
8637}
8638
891478a2
JS		 8639/**
8640 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
8641 * @phba: pointer to lpfc hba data structure.
8642 *
8643 * This routine is called to prepare the SLI3 device for PCI slot recover. It
e2af0d2e 8644 * aborts all the outstanding SCSI I/Os to the pci device.
891478a2
JS		 8645 **/
8646static void
8647lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
8648{
e2af0d2e
JS		 8649 struct lpfc_sli *psli = &phba->sli;
8650 struct lpfc_sli_ring *pring;
8651
891478a2
JS		 8652 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8653 "2723 PCI channel I/O abort preparing for recovery\n");
e2af0d2e
JS		 8654
8655 /*
8656 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8657 * and let the SCSI mid-layer to retry them to recover.
8658 */
8659 pring = &psli->ring[psli->fcp_ring];
8660 lpfc_sli_abort_iocb_ring(phba, pring);
891478a2
JS		 8661}
8662
0d878419
JS		 8663/**
8664 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
8665 * @phba: pointer to lpfc hba data structure.
8666 *
8667 * This routine is called to prepare the SLI3 device for PCI slot reset. It
8668 * disables the device interrupt and pci device, and aborts the internal FCP
8669 * pending I/Os.
8670 **/
8671static void
8672lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
8673{
0d878419 8674 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
891478a2 8675 "2710 PCI channel disable preparing for reset\n");
e2af0d2e 8676
75baf696
JS		 8677 /* Block any management I/Os to the device */
8678 lpfc_block_mgmt_io(phba);
8679
e2af0d2e
JS		 8680 /* Block all SCSI devices' I/Os on the host */
8681 lpfc_scsi_dev_block(phba);
8682
8683 /* stop all timers */
8684 lpfc_stop_hba_timers(phba);
8685
0d878419
JS		 8686 /* Disable interrupt and pci device */
8687 lpfc_sli_disable_intr(phba);
8688 pci_disable_device(phba->pcidev);
75baf696 8689
e2af0d2e
JS		 8690 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8691 lpfc_sli_flush_fcp_rings(phba);
0d878419
JS		 8692}
8693
8694/**
8695 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
8696 * @phba: pointer to lpfc hba data structure.
8697 *
8698 * This routine is called to prepare the SLI3 device for PCI slot permanently
8699 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8700 * pending I/Os.
8701 **/
8702static void
75baf696 8703lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
0d878419
JS		 8704{
8705 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
891478a2 8706 "2711 PCI channel permanent disable for failure\n");
e2af0d2e
JS		 8707 /* Block all SCSI devices' I/Os on the host */
8708 lpfc_scsi_dev_block(phba);
8709
8710 /* stop all timers */
8711 lpfc_stop_hba_timers(phba);
8712
0d878419
JS		 8713 /* Clean up all driver's outstanding SCSI I/Os */
8714 lpfc_sli_flush_fcp_rings(phba);
8715}
8716
da0436e9
JS		 8717/**
8718 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
8719 * @pdev: pointer to PCI device.
8720 * @state: the current PCI connection state.
8721 *
8722 * This routine is called from the PCI subsystem for I/O error handling to
8723 * device with SLI-3 interface spec. This function is called by the PCI
8724 * subsystem after a PCI bus error affecting this device has been detected.
8725 * When this function is invoked, it will need to stop all the I/Os and
8726 * interrupt(s) to the device. Once that is done, it will return
8727 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
8728 * as desired.
8729 *
8730 * Return codes
0d878419 8731 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
da0436e9
JS		 8732 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8733 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8734 **/
8735static pci_ers_result_t
8736lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
8737{
8738 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8739 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
da0436e9 8740
0d878419
JS		 8741 switch (state) {
8742 case pci_channel_io_normal:
891478a2
JS		 8743 /* Non-fatal error, prepare for recovery */
8744 lpfc_sli_prep_dev_for_recover(phba);
0d878419
JS		 8745 return PCI_ERS_RESULT_CAN_RECOVER;
8746 case pci_channel_io_frozen:
8747 /* Fatal error, prepare for slot reset */
8748 lpfc_sli_prep_dev_for_reset(phba);
8749 return PCI_ERS_RESULT_NEED_RESET;
8750 case pci_channel_io_perm_failure:
8751 /* Permanent failure, prepare for device down */
75baf696 8752 lpfc_sli_prep_dev_for_perm_failure(phba);
da0436e9 8753 return PCI_ERS_RESULT_DISCONNECT;
0d878419
JS		 8754 default:
8755 /* Unknown state, prepare and request slot reset */
8756 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8757 "0472 Unknown PCI error state: x%x\n", state);
8758 lpfc_sli_prep_dev_for_reset(phba);
8759 return PCI_ERS_RESULT_NEED_RESET;
da0436e9 8760 }
da0436e9
JS		 8761}
8762
8763/**
8764 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
8765 * @pdev: pointer to PCI device.
8766 *
8767 * This routine is called from the PCI subsystem for error handling to
8768 * device with SLI-3 interface spec. This is called after PCI bus has been
8769 * reset to restart the PCI card from scratch, as if from a cold-boot.
8770 * During the PCI subsystem error recovery, after driver returns
8771 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8772 * recovery and then call this routine before calling the .resume method
8773 * to recover the device. This function will initialize the HBA device,
8774 * enable the interrupt, but it will just put the HBA to offline state
8775 * without passing any I/O traffic.
8776 *
8777 * Return codes
8778 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8779 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8780 */
8781static pci_ers_result_t
8782lpfc_io_slot_reset_s3(struct pci_dev *pdev)
8783{
8784 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8785 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8786 struct lpfc_sli *psli = &phba->sli;
8787 uint32_t intr_mode;
8788
8789 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
8790 if (pci_enable_device_mem(pdev)) {
8791 printk(KERN_ERR "lpfc: Cannot re-enable "
8792 "PCI device after reset.\n");
8793 return PCI_ERS_RESULT_DISCONNECT;
8794 }
8795
8796 pci_restore_state(pdev);
1dfb5a47
JS		 8797
8798 /*
8799 * As the new kernel behavior of pci_restore_state() API call clears
8800 * device saved_state flag, need to save the restored state again.
8801 */
8802 pci_save_state(pdev);
8803
da0436e9
JS		 8804 if (pdev->is_busmaster)
8805 pci_set_master(pdev);
8806
8807 spin_lock_irq(&phba->hbalock);
8808 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8809 spin_unlock_irq(&phba->hbalock);
8810
8811 /* Configure and enable interrupt */
8812 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8813 if (intr_mode == LPFC_INTR_ERROR) {
8814 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8815 "0427 Cannot re-enable interrupt after "
8816 "slot reset.\n");
8817 return PCI_ERS_RESULT_DISCONNECT;
8818 } else
8819 phba->intr_mode = intr_mode;
8820
75baf696
JS		 8821 /* Take device offline, it will perform cleanup */
8822 lpfc_offline_prep(phba);
da0436e9
JS		 8823 lpfc_offline(phba);
8824 lpfc_sli_brdrestart(phba);
8825
8826 /* Log the current active interrupt mode */
8827 lpfc_log_intr_mode(phba, phba->intr_mode);
8828
8829 return PCI_ERS_RESULT_RECOVERED;
8830}
8831
8832/**
8833 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
8834 * @pdev: pointer to PCI device
8835 *
8836 * This routine is called from the PCI subsystem for error handling to device
8837 * with SLI-3 interface spec. It is called when kernel error recovery tells
8838 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8839 * error recovery. After this call, traffic can start to flow from this device
8840 * again.
8841 */
8842static void
8843lpfc_io_resume_s3(struct pci_dev *pdev)
8844{
8845 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8846 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3772a991 8847
e2af0d2e 8848 /* Bring device online, it will be no-op for non-fatal error resume */
da0436e9 8849 lpfc_online(phba);
0d878419
JS		 8850
8851 /* Clean up Advanced Error Reporting (AER) if needed */
8852 if (phba->hba_flag & HBA_AER_ENABLED)
8853 pci_cleanup_aer_uncorrect_error_status(pdev);
da0436e9 8854}
3772a991 8855
da0436e9
JS		 8856/**
8857 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
8858 * @phba: pointer to lpfc hba data structure.
8859 *
8860 * returns the number of ELS/CT IOCBs to reserve
8861 **/
8862int
8863lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
8864{
8865 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
8866
f1126688
JS		 8867 if (phba->sli_rev == LPFC_SLI_REV4) {
8868 if (max_xri <= 100)
6a9c52cf 8869 return 10;
f1126688 8870 else if (max_xri <= 256)
6a9c52cf 8871 return 25;
f1126688 8872 else if (max_xri <= 512)
6a9c52cf 8873 return 50;
f1126688 8874 else if (max_xri <= 1024)
6a9c52cf 8875 return 100;
f1126688 8876 else
6a9c52cf 8877 return 150;
f1126688
JS		 8878 } else
8879 return 0;
3772a991
JS		 8880}
8881
52d52440
JS		 8882/**
8883 * lpfc_write_firmware - attempt to write a firmware image to the port
8884 * @phba: pointer to lpfc hba data structure.
8885 * @fw: pointer to firmware image returned from request_firmware.
8886 *
8887 * returns the number of bytes written if write is successful.
8888 * returns a negative error value if there were errors.
8889 * returns 0 if firmware matches currently active firmware on port.
8890 **/
8891int
8892lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw)
8893{
8894 char fwrev[32];
8895 struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data;
8896 struct list_head dma_buffer_list;
8897 int i, rc = 0;
8898 struct lpfc_dmabuf *dmabuf, *next;
8899 uint32_t offset = 0, temp_offset = 0;
8900
8901 INIT_LIST_HEAD(&dma_buffer_list);
079b5c91
JS		 8902 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
8903 (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
8904 LPFC_FILE_TYPE_GROUP) ||
8905 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
8906 (be32_to_cpu(image->size) != fw->size)) {
52d52440
JS		 8907 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8908 "3022 Invalid FW image found. "
079b5c91
JS		 8909 "Magic:%x Type:%x ID:%x\n",
8910 be32_to_cpu(image->magic_number),
8911 bf_get_be32(lpfc_grp_hdr_file_type, image),
8912 bf_get_be32(lpfc_grp_hdr_id, image));
52d52440
JS		 8913 return -EINVAL;
8914 }
8915 lpfc_decode_firmware_rev(phba, fwrev, 1);
88a2cfbb 8916 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
52d52440
JS		 8917 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8918 "3023 Updating Firmware. Current Version:%s "
8919 "New Version:%s\n",
88a2cfbb 8920 fwrev, image->revision);
52d52440
JS		 8921 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
8922 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
8923 GFP_KERNEL);
8924 if (!dmabuf) {
8925 rc = -ENOMEM;
8926 goto out;
8927 }
8928 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
8929 SLI4_PAGE_SIZE,
8930 &dmabuf->phys,
8931 GFP_KERNEL);
8932 if (!dmabuf->virt) {
8933 kfree(dmabuf);
8934 rc = -ENOMEM;
8935 goto out;
8936 }
8937 list_add_tail(&dmabuf->list, &dma_buffer_list);
8938 }
8939 while (offset < fw->size) {
8940 temp_offset = offset;
8941 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
079b5c91 8942 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
52d52440
JS		 8943 memcpy(dmabuf->virt,
8944 fw->data + temp_offset,
079b5c91
JS		 8945 fw->size - temp_offset);
8946 temp_offset = fw->size;
52d52440
JS		 8947 break;
8948 }
52d52440
JS		 8949 memcpy(dmabuf->virt, fw->data + temp_offset,
8950 SLI4_PAGE_SIZE);
88a2cfbb 8951 temp_offset += SLI4_PAGE_SIZE;
52d52440
JS		 8952 }
8953 rc = lpfc_wr_object(phba, &dma_buffer_list,
8954 (fw->size - offset), &offset);
8955 if (rc) {
8956 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8957 "3024 Firmware update failed. "
8958 "%d\n", rc);
8959 goto out;
8960 }
8961 }
8962 rc = offset;
8963 }
8964out:
8965 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
8966 list_del(&dmabuf->list);
8967 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
8968 dmabuf->virt, dmabuf->phys);
8969 kfree(dmabuf);
8970 }
8971 return rc;
8972}
8973
3772a991 8974/**
da0436e9 8975 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
3772a991
JS		 8976 * @pdev: pointer to PCI device
8977 * @pid: pointer to PCI device identifier
8978 *
da0436e9
JS		 8979 * This routine is called from the kernel's PCI subsystem to device with
8980 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
3772a991 8981 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
da0436e9
JS		 8982 * information of the device and driver to see if the driver state that it
8983 * can support this kind of device. If the match is successful, the driver
8984 * core invokes this routine. If this routine determines it can claim the HBA,
8985 * it does all the initialization that it needs to do to handle the HBA
8986 * properly.
3772a991
JS		 8987 *
8988 * Return code
8989 * 0 - driver can claim the device
8990 * negative value - driver can not claim the device
8991 **/
8992static int __devinit
da0436e9 8993lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
3772a991
JS		 8994{
8995 struct lpfc_hba *phba;
8996 struct lpfc_vport *vport = NULL;
6669f9bb 8997 struct Scsi_Host *shost = NULL;
3772a991
JS		 8998 int error;
8999 uint32_t cfg_mode, intr_mode;
da0436e9 9000 int mcnt;
0558056c
JS		 9001 int adjusted_fcp_eq_count;
9002 int fcp_qidx;
52d52440
JS		 9003 const struct firmware *fw;
9004 uint8_t file_name[16];
3772a991
JS		 9005
9006 /* Allocate memory for HBA structure */
9007 phba = lpfc_hba_alloc(pdev);
9008 if (!phba)
9009 return -ENOMEM;
9010
9011 /* Perform generic PCI device enabling operation */
9012 error = lpfc_enable_pci_dev(phba);
079b5c91 9013 if (error)
3772a991 9014 goto out_free_phba;
3772a991 9015
da0436e9
JS		 9016 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
9017 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
3772a991
JS		 9018 if (error)
9019 goto out_disable_pci_dev;
9020
da0436e9
JS		 9021 /* Set up SLI-4 specific device PCI memory space */
9022 error = lpfc_sli4_pci_mem_setup(phba);
3772a991
JS		 9023 if (error) {
9024 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9025 "1410 Failed to set up pci memory space.\n");
3772a991
JS		 9026 goto out_disable_pci_dev;
9027 }
9028
9029 /* Set up phase-1 common device driver resources */
9030 error = lpfc_setup_driver_resource_phase1(phba);
9031 if (error) {
9032 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 9033 "1411 Failed to set up driver resource.\n");
9034 goto out_unset_pci_mem_s4;
3772a991
JS		 9035 }
9036
da0436e9
JS		 9037 /* Set up SLI-4 Specific device driver resources */
9038 error = lpfc_sli4_driver_resource_setup(phba);
3772a991
JS		 9039 if (error) {
9040 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 9041 "1412 Failed to set up driver resource.\n");
9042 goto out_unset_pci_mem_s4;
3772a991
JS		 9043 }
9044
9045 /* Initialize and populate the iocb list per host */
2a9bf3d0
JS		 9046
9047 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9048 "2821 initialize iocb list %d.\n",
9049 phba->cfg_iocb_cnt*1024);
9050 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
9051
3772a991
JS		 9052 if (error) {
9053 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 9054 "1413 Failed to initialize iocb list.\n");
9055 goto out_unset_driver_resource_s4;
3772a991
JS		 9056 }
9057
19ca7609 9058 INIT_LIST_HEAD(&phba->active_rrq_list);
7d791df7 9059 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
19ca7609 9060
3772a991
JS		 9061 /* Set up common device driver resources */
9062 error = lpfc_setup_driver_resource_phase2(phba);
9063 if (error) {
9064 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9065 "1414 Failed to set up driver resource.\n");
3772a991
JS		 9066 goto out_free_iocb_list;
9067 }
9068
079b5c91
JS		 9069 /* Get the default values for Model Name and Description */
9070 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9071
3772a991
JS		 9072 /* Create SCSI host to the physical port */
9073 error = lpfc_create_shost(phba);
9074 if (error) {
9075 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9076 "1415 Failed to create scsi host.\n");
3772a991
JS		 9077 goto out_unset_driver_resource;
9078 }
9399627f 9079
5b75da2f 9080 /* Configure sysfs attributes */
3772a991
JS		 9081 vport = phba->pport;
9082 error = lpfc_alloc_sysfs_attr(vport);
9083 if (error) {
9399627f 9084 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9085 "1416 Failed to allocate sysfs attr\n");
3772a991 9086 goto out_destroy_shost;
98c9ea5c 9087 }
875fbdfe 9088
6669f9bb 9089 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
3772a991 9090 /* Now, trying to enable interrupt and bring up the device */
5b75da2f
JS		 9091 cfg_mode = phba->cfg_use_msi;
9092 while (true) {
3772a991
JS		 9093 /* Put device to a known state before enabling interrupt */
9094 lpfc_stop_port(phba);
5b75da2f 9095 /* Configure and enable interrupt */
da0436e9 9096 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
5b75da2f
JS		 9097 if (intr_mode == LPFC_INTR_ERROR) {
9098 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9099 "0426 Failed to enable interrupt.\n");
3772a991 9100 error = -ENODEV;
5b75da2f
JS		 9101 goto out_free_sysfs_attr;
9102 }
0558056c 9103 /* Default to single EQ for non-MSI-X */
def9c7a9 9104 if (phba->intr_type != MSIX)
0558056c
JS		 9105 adjusted_fcp_eq_count = 0;
9106 else if (phba->sli4_hba.msix_vec_nr <
9107 phba->cfg_fcp_eq_count + 1)
9108 adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
9109 else
9110 adjusted_fcp_eq_count = phba->cfg_fcp_eq_count;
9111 /* Free unused EQs */
9112 for (fcp_qidx = adjusted_fcp_eq_count;
9113 fcp_qidx < phba->cfg_fcp_eq_count;
9114 fcp_qidx++) {
9115 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
9116 /* do not delete the first fcp_cq */
9117 if (fcp_qidx)
9118 lpfc_sli4_queue_free(
9119 phba->sli4_hba.fcp_cq[fcp_qidx]);
9120 }
9121 phba->cfg_fcp_eq_count = adjusted_fcp_eq_count;
da0436e9
JS		 9122 /* Set up SLI-4 HBA */
9123 if (lpfc_sli4_hba_setup(phba)) {
5b75da2f 9124 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9125 "1421 Failed to set up hba\n");
5b75da2f 9126 error = -ENODEV;
da0436e9 9127 goto out_disable_intr;
5b75da2f
JS		 9128 }
9129
da0436e9
JS		 9130 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
9131 if (intr_mode != 0)
9132 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
9133 LPFC_ACT_INTR_CNT);
9134
9135 /* Check active interrupts received only for MSI/MSI-X */
3772a991 9136 if (intr_mode == 0 ||
da0436e9 9137 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
5b75da2f
JS		 9138 /* Log the current active interrupt mode */
9139 phba->intr_mode = intr_mode;
9140 lpfc_log_intr_mode(phba, intr_mode);
9141 break;
5b75da2f 9142 }
da0436e9
JS		 9143 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9144 "0451 Configure interrupt mode (%d) "
9145 "failed active interrupt test.\n",
9146 intr_mode);
2fcee4bf
JS		 9147 /* Unset the previous SLI-4 HBA setup. */
9148 /*
9149 * TODO: Is this operation compatible with IF TYPE 2
9150 * devices? All port state is deleted and cleared.
9151 */
da0436e9
JS		 9152 lpfc_sli4_unset_hba(phba);
9153 /* Try next level of interrupt mode */
9154 cfg_mode = --intr_mode;
98c9ea5c 9155 }
858c9f6c 9156
3772a991
JS		 9157 /* Perform post initialization setup */
9158 lpfc_post_init_setup(phba);
dea3101e 9159
52d52440
JS		 9160 /* check for firmware upgrade or downgrade */
9161 snprintf(file_name, 16, "%s.grp", phba->ModelName);
9162 error = request_firmware(&fw, file_name, &phba->pcidev->dev);
9163 if (!error) {
9164 lpfc_write_firmware(phba, fw);
9165 release_firmware(fw);
9166 }
9167
1c6834a7
JS		 9168 /* Check if there are static vports to be created. */
9169 lpfc_create_static_vport(phba);
dea3101e 9170 return 0;
9171
da0436e9
JS		 9172out_disable_intr:
9173 lpfc_sli4_disable_intr(phba);
5b75da2f
JS		 9174out_free_sysfs_attr:
9175 lpfc_free_sysfs_attr(vport);
3772a991
JS		 9176out_destroy_shost:
9177 lpfc_destroy_shost(phba);
9178out_unset_driver_resource:
9179 lpfc_unset_driver_resource_phase2(phba);
9180out_free_iocb_list:
9181 lpfc_free_iocb_list(phba);
da0436e9
JS		 9182out_unset_driver_resource_s4:
9183 lpfc_sli4_driver_resource_unset(phba);
9184out_unset_pci_mem_s4:
9185 lpfc_sli4_pci_mem_unset(phba);
3772a991
JS		 9186out_disable_pci_dev:
9187 lpfc_disable_pci_dev(phba);
6669f9bb
JS		 9188 if (shost)
9189 scsi_host_put(shost);
2e0fef85 9190out_free_phba:
3772a991 9191 lpfc_hba_free(phba);
dea3101e 9192 return error;
9193}
9194
e59058c4 9195/**
da0436e9 9196 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
e59058c4
JS		 9197 * @pdev: pointer to PCI device
9198 *
da0436e9
JS		 9199 * This routine is called from the kernel's PCI subsystem to device with
9200 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
3772a991
JS		 9201 * removed from PCI bus, it performs all the necessary cleanup for the HBA
9202 * device to be removed from the PCI subsystem properly.
e59058c4 9203 **/
dea3101e 9204static void __devexit
da0436e9 9205lpfc_pci_remove_one_s4(struct pci_dev *pdev)
dea3101e 9206{
da0436e9 9207 struct Scsi_Host *shost = pci_get_drvdata(pdev);
2e0fef85 9208 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
eada272d 9209 struct lpfc_vport **vports;
da0436e9 9210 struct lpfc_hba *phba = vport->phba;
eada272d 9211 int i;
8a4df120 9212
da0436e9 9213 /* Mark the device unloading flag */
549e55cd 9214 spin_lock_irq(&phba->hbalock);
51ef4c26 9215 vport->load_flag |= FC_UNLOADING;
549e55cd 9216 spin_unlock_irq(&phba->hbalock);
2e0fef85 9217
da0436e9 9218 /* Free the HBA sysfs attributes */
858c9f6c
JS		 9219 lpfc_free_sysfs_attr(vport);
9220
eada272d
JS		 9221 /* Release all the vports against this physical port */
9222 vports = lpfc_create_vport_work_array(phba);
9223 if (vports != NULL)
3772a991 9224 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
eada272d
JS		 9225 fc_vport_terminate(vports[i]->fc_vport);
9226 lpfc_destroy_vport_work_array(phba, vports);
9227
9228 /* Remove FC host and then SCSI host with the physical port */
858c9f6c
JS		 9229 fc_remove_host(shost);
9230 scsi_remove_host(shost);
da0436e9
JS		 9231
9232 /* Perform cleanup on the physical port */
87af33fe
JS		 9233 lpfc_cleanup(vport);
9234
2e0fef85 9235 /*
da0436e9 9236 * Bring down the SLI Layer. This step disables all interrupts,
2e0fef85 9237 * clears the rings, discards all mailbox commands, and resets
da0436e9 9238 * the HBA FCoE function.
2e0fef85 9239 */
da0436e9
JS		 9240 lpfc_debugfs_terminate(vport);
9241 lpfc_sli4_hba_unset(phba);
a257bf90 9242
858c9f6c
JS		 9243 spin_lock_irq(&phba->hbalock);
9244 list_del_init(&vport->listentry);
9245 spin_unlock_irq(&phba->hbalock);
9246
3677a3a7 9247 /* Perform scsi free before driver resource_unset since scsi
da0436e9 9248 * buffers are released to their corresponding pools here.
2e0fef85
JS		 9249 */
9250 lpfc_scsi_free(phba);
da0436e9 9251 lpfc_sli4_driver_resource_unset(phba);
ed957684 9252
da0436e9
JS		 9253 /* Unmap adapter Control and Doorbell registers */
9254 lpfc_sli4_pci_mem_unset(phba);
2e0fef85 9255
da0436e9
JS		 9256 /* Release PCI resources and disable device's PCI function */
9257 scsi_host_put(shost);
9258 lpfc_disable_pci_dev(phba);
2e0fef85 9259
da0436e9 9260 /* Finally, free the driver's device data structure */
3772a991 9261 lpfc_hba_free(phba);
2e0fef85 9262
da0436e9 9263 return;
dea3101e 9264}
9265
3a55b532 9266/**
da0436e9 9267 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
3a55b532
JS		 9268 * @pdev: pointer to PCI device
9269 * @msg: power management message
9270 *
da0436e9
JS		 9271 * This routine is called from the kernel's PCI subsystem to support system
9272 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
9273 * this method, it quiesces the device by stopping the driver's worker
9274 * thread for the device, turning off device's interrupt and DMA, and bring
9275 * the device offline. Note that as the driver implements the minimum PM
9276 * requirements to a power-aware driver's PM support for suspend/resume -- all
9277 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
9278 * method call will be treated as SUSPEND and the driver will fully
9279 * reinitialize its device during resume() method call, the driver will set
9280 * device to PCI_D3hot state in PCI config space instead of setting it
3772a991 9281 * according to the @msg provided by the PM.
3a55b532
JS		 9282 *
9283 * Return code
3772a991
JS		 9284 * 0 - driver suspended the device
9285 * Error otherwise
3a55b532
JS		 9286 **/
9287static int
da0436e9 9288lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
3a55b532
JS		 9289{
9290 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9291 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9292
9293 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
75baf696 9294 "2843 PCI device Power Management suspend.\n");
3a55b532
JS		 9295
9296 /* Bring down the device */
9297 lpfc_offline_prep(phba);
9298 lpfc_offline(phba);
9299 kthread_stop(phba->worker_thread);
9300
9301 /* Disable interrupt from device */
da0436e9 9302 lpfc_sli4_disable_intr(phba);
3a55b532
JS		 9303
9304 /* Save device state to PCI config space */
9305 pci_save_state(pdev);
9306 pci_set_power_state(pdev, PCI_D3hot);
9307
9308 return 0;
9309}
9310
9311/**
da0436e9 9312 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
3a55b532
JS		 9313 * @pdev: pointer to PCI device
9314 *
da0436e9
JS		 9315 * This routine is called from the kernel's PCI subsystem to support system
9316 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
9317 * this method, it restores the device's PCI config space state and fully
9318 * reinitializes the device and brings it online. Note that as the driver
9319 * implements the minimum PM requirements to a power-aware driver's PM for
9320 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9321 * to the suspend() method call will be treated as SUSPEND and the driver
9322 * will fully reinitialize its device during resume() method call, the device
9323 * will be set to PCI_D0 directly in PCI config space before restoring the
9324 * state.
3a55b532
JS		 9325 *
9326 * Return code
3772a991
JS		 9327 * 0 - driver suspended the device
9328 * Error otherwise
3a55b532
JS		 9329 **/
9330static int
da0436e9 9331lpfc_pci_resume_one_s4(struct pci_dev *pdev)
3a55b532
JS		 9332{
9333 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9334 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
5b75da2f 9335 uint32_t intr_mode;
3a55b532
JS		 9336 int error;
9337
9338 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
da0436e9 9339 "0292 PCI device Power Management resume.\n");
3a55b532
JS		 9340
9341 /* Restore device state from PCI config space */
9342 pci_set_power_state(pdev, PCI_D0);
9343 pci_restore_state(pdev);
1dfb5a47
JS		 9344
9345 /*
9346 * As the new kernel behavior of pci_restore_state() API call clears
9347 * device saved_state flag, need to save the restored state again.
9348 */
9349 pci_save_state(pdev);
9350
3a55b532
JS		 9351 if (pdev->is_busmaster)
9352 pci_set_master(pdev);
9353
da0436e9 9354 /* Startup the kernel thread for this host adapter. */
3a55b532
JS		 9355 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9356 "lpfc_worker_%d", phba->brd_no);
9357 if (IS_ERR(phba->worker_thread)) {
9358 error = PTR_ERR(phba->worker_thread);
9359 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9360 "0293 PM resume failed to start worker "
3a55b532
JS		 9361 "thread: error=x%x.\n", error);
9362 return error;
9363 }
9364
5b75da2f 9365 /* Configure and enable interrupt */
da0436e9 9366 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
5b75da2f 9367 if (intr_mode == LPFC_INTR_ERROR) {
3a55b532 9368 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9369 "0294 PM resume Failed to enable interrupt\n");
5b75da2f
JS		 9370 return -EIO;
9371 } else
9372 phba->intr_mode = intr_mode;
3a55b532
JS		 9373
9374 /* Restart HBA and bring it online */
9375 lpfc_sli_brdrestart(phba);
9376 lpfc_online(phba);
9377
5b75da2f
JS		 9378 /* Log the current active interrupt mode */
9379 lpfc_log_intr_mode(phba, phba->intr_mode);
9380
3a55b532
JS		 9381 return 0;
9382}
9383
75baf696
JS		 9384/**
9385 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
9386 * @phba: pointer to lpfc hba data structure.
9387 *
9388 * This routine is called to prepare the SLI4 device for PCI slot recover. It
9389 * aborts all the outstanding SCSI I/Os to the pci device.
9390 **/
9391static void
9392lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
9393{
9394 struct lpfc_sli *psli = &phba->sli;
9395 struct lpfc_sli_ring *pring;
9396
9397 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9398 "2828 PCI channel I/O abort preparing for recovery\n");
9399 /*
9400 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9401 * and let the SCSI mid-layer to retry them to recover.
9402 */
9403 pring = &psli->ring[psli->fcp_ring];
9404 lpfc_sli_abort_iocb_ring(phba, pring);
9405}
9406
9407/**
9408 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
9409 * @phba: pointer to lpfc hba data structure.
9410 *
9411 * This routine is called to prepare the SLI4 device for PCI slot reset. It
9412 * disables the device interrupt and pci device, and aborts the internal FCP
9413 * pending I/Os.
9414 **/
9415static void
9416lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
9417{
9418 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9419 "2826 PCI channel disable preparing for reset\n");
9420
9421 /* Block any management I/Os to the device */
9422 lpfc_block_mgmt_io(phba);
9423
9424 /* Block all SCSI devices' I/Os on the host */
9425 lpfc_scsi_dev_block(phba);
9426
9427 /* stop all timers */
9428 lpfc_stop_hba_timers(phba);
9429
9430 /* Disable interrupt and pci device */
9431 lpfc_sli4_disable_intr(phba);
9432 pci_disable_device(phba->pcidev);
9433
9434 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9435 lpfc_sli_flush_fcp_rings(phba);
9436}
9437
9438/**
9439 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
9440 * @phba: pointer to lpfc hba data structure.
9441 *
9442 * This routine is called to prepare the SLI4 device for PCI slot permanently
9443 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9444 * pending I/Os.
9445 **/
9446static void
9447lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9448{
9449 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9450 "2827 PCI channel permanent disable for failure\n");
9451
9452 /* Block all SCSI devices' I/Os on the host */
9453 lpfc_scsi_dev_block(phba);
9454
9455 /* stop all timers */
9456 lpfc_stop_hba_timers(phba);
9457
9458 /* Clean up all driver's outstanding SCSI I/Os */
9459 lpfc_sli_flush_fcp_rings(phba);
9460}
9461
8d63f375 9462/**
da0436e9 9463 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
e59058c4
JS		 9464 * @pdev: pointer to PCI device.
9465 * @state: the current PCI connection state.
8d63f375 9466 *
da0436e9
JS		 9467 * This routine is called from the PCI subsystem for error handling to device
9468 * with SLI-4 interface spec. This function is called by the PCI subsystem
9469 * after a PCI bus error affecting this device has been detected. When this
9470 * function is invoked, it will need to stop all the I/Os and interrupt(s)
9471 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
9472 * for the PCI subsystem to perform proper recovery as desired.
e59058c4
JS		 9473 *
9474 * Return codes
3772a991
JS		 9475 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9476 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
e59058c4 9477 **/
3772a991 9478static pci_ers_result_t
da0436e9 9479lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
8d63f375 9480{
75baf696
JS		 9481 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9482 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9483
9484 switch (state) {
9485 case pci_channel_io_normal:
9486 /* Non-fatal error, prepare for recovery */
9487 lpfc_sli4_prep_dev_for_recover(phba);
9488 return PCI_ERS_RESULT_CAN_RECOVER;
9489 case pci_channel_io_frozen:
9490 /* Fatal error, prepare for slot reset */
9491 lpfc_sli4_prep_dev_for_reset(phba);
9492 return PCI_ERS_RESULT_NEED_RESET;
9493 case pci_channel_io_perm_failure:
9494 /* Permanent failure, prepare for device down */
9495 lpfc_sli4_prep_dev_for_perm_failure(phba);
9496 return PCI_ERS_RESULT_DISCONNECT;
9497 default:
9498 /* Unknown state, prepare and request slot reset */
9499 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9500 "2825 Unknown PCI error state: x%x\n", state);
9501 lpfc_sli4_prep_dev_for_reset(phba);
9502 return PCI_ERS_RESULT_NEED_RESET;
9503 }
8d63f375
LV		 9504}
9505
9506/**
da0436e9 9507 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
e59058c4
JS		 9508 * @pdev: pointer to PCI device.
9509 *
da0436e9
JS		 9510 * This routine is called from the PCI subsystem for error handling to device
9511 * with SLI-4 interface spec. It is called after PCI bus has been reset to
9512 * restart the PCI card from scratch, as if from a cold-boot. During the
9513 * PCI subsystem error recovery, after the driver returns
3772a991 9514 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
da0436e9
JS		 9515 * recovery and then call this routine before calling the .resume method to
9516 * recover the device. This function will initialize the HBA device, enable
9517 * the interrupt, but it will just put the HBA to offline state without
9518 * passing any I/O traffic.
8d63f375 9519 *
e59058c4 9520 * Return codes
3772a991
JS		 9521 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9522 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8d63f375 9523 */
3772a991 9524static pci_ers_result_t
da0436e9 9525lpfc_io_slot_reset_s4(struct pci_dev *pdev)
8d63f375 9526{
75baf696
JS		 9527 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9528 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9529 struct lpfc_sli *psli = &phba->sli;
9530 uint32_t intr_mode;
9531
9532 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9533 if (pci_enable_device_mem(pdev)) {
9534 printk(KERN_ERR "lpfc: Cannot re-enable "
9535 "PCI device after reset.\n");
9536 return PCI_ERS_RESULT_DISCONNECT;
9537 }
9538
9539 pci_restore_state(pdev);
0a96e975
JS		 9540
9541 /*
9542 * As the new kernel behavior of pci_restore_state() API call clears
9543 * device saved_state flag, need to save the restored state again.
9544 */
9545 pci_save_state(pdev);
9546
75baf696
JS		 9547 if (pdev->is_busmaster)
9548 pci_set_master(pdev);
9549
9550 spin_lock_irq(&phba->hbalock);
9551 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9552 spin_unlock_irq(&phba->hbalock);
9553
9554 /* Configure and enable interrupt */
9555 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9556 if (intr_mode == LPFC_INTR_ERROR) {
9557 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9558 "2824 Cannot re-enable interrupt after "
9559 "slot reset.\n");
9560 return PCI_ERS_RESULT_DISCONNECT;
9561 } else
9562 phba->intr_mode = intr_mode;
9563
9564 /* Log the current active interrupt mode */
9565 lpfc_log_intr_mode(phba, phba->intr_mode);
9566
8d63f375
LV		 9567 return PCI_ERS_RESULT_RECOVERED;
9568}
9569
9570/**
da0436e9 9571 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
e59058c4 9572 * @pdev: pointer to PCI device
8d63f375 9573 *
3772a991 9574 * This routine is called from the PCI subsystem for error handling to device
da0436e9 9575 * with SLI-4 interface spec. It is called when kernel error recovery tells
3772a991
JS		 9576 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9577 * error recovery. After this call, traffic can start to flow from this device
9578 * again.
da0436e9 9579 **/
3772a991 9580static void
da0436e9 9581lpfc_io_resume_s4(struct pci_dev *pdev)
8d63f375 9582{
75baf696
JS		 9583 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9584 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9585
9586 /*
9587 * In case of slot reset, as function reset is performed through
9588 * mailbox command which needs DMA to be enabled, this operation
9589 * has to be moved to the io resume phase. Taking device offline
9590 * will perform the necessary cleanup.
9591 */
9592 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
9593 /* Perform device reset */
9594 lpfc_offline_prep(phba);
9595 lpfc_offline(phba);
9596 lpfc_sli_brdrestart(phba);
9597 /* Bring the device back online */
9598 lpfc_online(phba);
9599 }
9600
9601 /* Clean up Advanced Error Reporting (AER) if needed */
9602 if (phba->hba_flag & HBA_AER_ENABLED)
9603 pci_cleanup_aer_uncorrect_error_status(pdev);
8d63f375
LV		 9604}
9605
3772a991
JS		 9606/**
9607 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
9608 * @pdev: pointer to PCI device
9609 * @pid: pointer to PCI device identifier
9610 *
9611 * This routine is to be registered to the kernel's PCI subsystem. When an
9612 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
9613 * at PCI device-specific information of the device and driver to see if the
9614 * driver state that it can support this kind of device. If the match is
9615 * successful, the driver core invokes this routine. This routine dispatches
9616 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
9617 * do all the initialization that it needs to do to handle the HBA device
9618 * properly.
9619 *
9620 * Return code
9621 * 0 - driver can claim the device
9622 * negative value - driver can not claim the device
9623 **/
9624static int __devinit
9625lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
9626{
9627 int rc;
8fa38513 9628 struct lpfc_sli_intf intf;
3772a991 9629
28baac74 9630 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
3772a991
JS		 9631 return -ENODEV;
9632
8fa38513 9633 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
28baac74 9634 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
da0436e9 9635 rc = lpfc_pci_probe_one_s4(pdev, pid);
8fa38513 9636 else
3772a991 9637 rc = lpfc_pci_probe_one_s3(pdev, pid);
8fa38513 9638
3772a991
JS		 9639 return rc;
9640}
9641
9642/**
9643 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
9644 * @pdev: pointer to PCI device
9645 *
9646 * This routine is to be registered to the kernel's PCI subsystem. When an
9647 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
9648 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
9649 * remove routine, which will perform all the necessary cleanup for the
9650 * device to be removed from the PCI subsystem properly.
9651 **/
9652static void __devexit
9653lpfc_pci_remove_one(struct pci_dev *pdev)
9654{
9655 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9656 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9657
9658 switch (phba->pci_dev_grp) {
9659 case LPFC_PCI_DEV_LP:
9660 lpfc_pci_remove_one_s3(pdev);
9661 break;
da0436e9
JS		 9662 case LPFC_PCI_DEV_OC:
9663 lpfc_pci_remove_one_s4(pdev);
9664 break;
3772a991
JS		 9665 default:
9666 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9667 "1424 Invalid PCI device group: 0x%x\n",
9668 phba->pci_dev_grp);
9669 break;
9670 }
9671 return;
9672}
9673
9674/**
9675 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
9676 * @pdev: pointer to PCI device
9677 * @msg: power management message
9678 *
9679 * This routine is to be registered to the kernel's PCI subsystem to support
9680 * system Power Management (PM). When PM invokes this method, it dispatches
9681 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
9682 * suspend the device.
9683 *
9684 * Return code
9685 * 0 - driver suspended the device
9686 * Error otherwise
9687 **/
9688static int
9689lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
9690{
9691 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9692 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9693 int rc = -ENODEV;
9694
9695 switch (phba->pci_dev_grp) {
9696 case LPFC_PCI_DEV_LP:
9697 rc = lpfc_pci_suspend_one_s3(pdev, msg);
9698 break;
da0436e9
JS		 9699 case LPFC_PCI_DEV_OC:
9700 rc = lpfc_pci_suspend_one_s4(pdev, msg);
9701 break;
3772a991
JS		 9702 default:
9703 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9704 "1425 Invalid PCI device group: 0x%x\n",
9705 phba->pci_dev_grp);
9706 break;
9707 }
9708 return rc;
9709}
9710
9711/**
9712 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
9713 * @pdev: pointer to PCI device
9714 *
9715 * This routine is to be registered to the kernel's PCI subsystem to support
9716 * system Power Management (PM). When PM invokes this method, it dispatches
9717 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
9718 * resume the device.
9719 *
9720 * Return code
9721 * 0 - driver suspended the device
9722 * Error otherwise
9723 **/
9724static int
9725lpfc_pci_resume_one(struct pci_dev *pdev)
9726{
9727 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9728 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9729 int rc = -ENODEV;
9730
9731 switch (phba->pci_dev_grp) {
9732 case LPFC_PCI_DEV_LP:
9733 rc = lpfc_pci_resume_one_s3(pdev);
9734 break;
da0436e9
JS		 9735 case LPFC_PCI_DEV_OC:
9736 rc = lpfc_pci_resume_one_s4(pdev);
9737 break;
3772a991
JS		 9738 default:
9739 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9740 "1426 Invalid PCI device group: 0x%x\n",
9741 phba->pci_dev_grp);
9742 break;
9743 }
9744 return rc;
9745}
9746
9747/**
9748 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
9749 * @pdev: pointer to PCI device.
9750 * @state: the current PCI connection state.
9751 *
9752 * This routine is registered to the PCI subsystem for error handling. This
9753 * function is called by the PCI subsystem after a PCI bus error affecting
9754 * this device has been detected. When this routine is invoked, it dispatches
9755 * the action to the proper SLI-3 or SLI-4 device error detected handling
9756 * routine, which will perform the proper error detected operation.
9757 *
9758 * Return codes
9759 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9760 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9761 **/
9762static pci_ers_result_t
9763lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9764{
9765 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9766 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9767 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9768
9769 switch (phba->pci_dev_grp) {
9770 case LPFC_PCI_DEV_LP:
9771 rc = lpfc_io_error_detected_s3(pdev, state);
9772 break;
da0436e9
JS		 9773 case LPFC_PCI_DEV_OC:
9774 rc = lpfc_io_error_detected_s4(pdev, state);
9775 break;
3772a991
JS		 9776 default:
9777 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9778 "1427 Invalid PCI device group: 0x%x\n",
9779 phba->pci_dev_grp);
9780 break;
9781 }
9782 return rc;
9783}
9784
9785/**
9786 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
9787 * @pdev: pointer to PCI device.
9788 *
9789 * This routine is registered to the PCI subsystem for error handling. This
9790 * function is called after PCI bus has been reset to restart the PCI card
9791 * from scratch, as if from a cold-boot. When this routine is invoked, it
9792 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
9793 * routine, which will perform the proper device reset.
9794 *
9795 * Return codes
9796 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9797 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9798 **/
9799static pci_ers_result_t
9800lpfc_io_slot_reset(struct pci_dev *pdev)
9801{
9802 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9803 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9804 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9805
9806 switch (phba->pci_dev_grp) {
9807 case LPFC_PCI_DEV_LP:
9808 rc = lpfc_io_slot_reset_s3(pdev);
9809 break;
da0436e9
JS		 9810 case LPFC_PCI_DEV_OC:
9811 rc = lpfc_io_slot_reset_s4(pdev);
9812 break;
3772a991
JS		 9813 default:
9814 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9815 "1428 Invalid PCI device group: 0x%x\n",
9816 phba->pci_dev_grp);
9817 break;
9818 }
9819 return rc;
9820}
9821
9822/**
9823 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
9824 * @pdev: pointer to PCI device
9825 *
9826 * This routine is registered to the PCI subsystem for error handling. It
9827 * is called when kernel error recovery tells the lpfc driver that it is
9828 * OK to resume normal PCI operation after PCI bus error recovery. When
9829 * this routine is invoked, it dispatches the action to the proper SLI-3
9830 * or SLI-4 device io_resume routine, which will resume the device operation.
9831 **/
9832static void
9833lpfc_io_resume(struct pci_dev *pdev)
9834{
9835 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9836 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9837
9838 switch (phba->pci_dev_grp) {
9839 case LPFC_PCI_DEV_LP:
9840 lpfc_io_resume_s3(pdev);
9841 break;
da0436e9
JS		 9842 case LPFC_PCI_DEV_OC:
9843 lpfc_io_resume_s4(pdev);
9844 break;
3772a991
JS		 9845 default:
9846 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9847 "1429 Invalid PCI device group: 0x%x\n",
9848 phba->pci_dev_grp);
9849 break;
9850 }
9851 return;
9852}
9853
dea3101e 9854static struct pci_device_id lpfc_id_table[] = {
9855 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
9856 PCI_ANY_ID, PCI_ANY_ID, },
06325e74
JSEC		 9857 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
9858 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9859 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
9860 PCI_ANY_ID, PCI_ANY_ID, },
9861 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
9862 PCI_ANY_ID, PCI_ANY_ID, },
9863 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
9864 PCI_ANY_ID, PCI_ANY_ID, },
9865 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
9866 PCI_ANY_ID, PCI_ANY_ID, },
9867 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
9868 PCI_ANY_ID, PCI_ANY_ID, },
9869 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
9870 PCI_ANY_ID, PCI_ANY_ID, },
9871 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
9872 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9873 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
9874 PCI_ANY_ID, PCI_ANY_ID, },
9875 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
9876 PCI_ANY_ID, PCI_ANY_ID, },
9877 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
9878 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9879 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
9880 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9881 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
9882 PCI_ANY_ID, PCI_ANY_ID, },
9883 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
9884 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9885 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
9886 PCI_ANY_ID, PCI_ANY_ID, },
9887 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
9888 PCI_ANY_ID, PCI_ANY_ID, },
9889 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
9890 PCI_ANY_ID, PCI_ANY_ID, },
84774a4d
JS		 9891 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
9892 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9893 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
9894 PCI_ANY_ID, PCI_ANY_ID, },
9895 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
9896 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9897 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
9898 PCI_ANY_ID, PCI_ANY_ID, },
9899 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
9900 PCI_ANY_ID, PCI_ANY_ID, },
9901 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
9902 PCI_ANY_ID, PCI_ANY_ID, },
9903 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
9904 PCI_ANY_ID, PCI_ANY_ID, },
9905 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
9906 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9907 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
9908 PCI_ANY_ID, PCI_ANY_ID, },
9909 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
9910 PCI_ANY_ID, PCI_ANY_ID, },
b87eab38
JS		 9911 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
9912 PCI_ANY_ID, PCI_ANY_ID, },
9913 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
9914 PCI_ANY_ID, PCI_ANY_ID, },
9915 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
9916 PCI_ANY_ID, PCI_ANY_ID, },
9917 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
9918 PCI_ANY_ID, PCI_ANY_ID, },
9919 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
9920 PCI_ANY_ID, PCI_ANY_ID, },
9921 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
9922 PCI_ANY_ID, PCI_ANY_ID, },
84774a4d
JS		 9923 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
9924 PCI_ANY_ID, PCI_ANY_ID, },
9925 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
9926 PCI_ANY_ID, PCI_ANY_ID, },
9927 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
9928 PCI_ANY_ID, PCI_ANY_ID, },
3772a991
JS		 9929 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
9930 PCI_ANY_ID, PCI_ANY_ID, },
a747c9ce
JS		 9931 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
9932 PCI_ANY_ID, PCI_ANY_ID, },
9933 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
6669f9bb 9934 PCI_ANY_ID, PCI_ANY_ID, },
98fc5dd9
JS		 9935 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
9936 PCI_ANY_ID, PCI_ANY_ID, },
085c647c
JS		 9937 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
9938 PCI_ANY_ID, PCI_ANY_ID, },
9939 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
9940 PCI_ANY_ID, PCI_ANY_ID, },
c0c11512
JS		 9941 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
9942 PCI_ANY_ID, PCI_ANY_ID, },
9943 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
9944 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9945 { 0 }
9946};
9947
9948MODULE_DEVICE_TABLE(pci, lpfc_id_table);
9949
8d63f375
LV		 9950static struct pci_error_handlers lpfc_err_handler = {
9951 .error_detected = lpfc_io_error_detected,
9952 .slot_reset = lpfc_io_slot_reset,
9953 .resume = lpfc_io_resume,
9954};
9955
dea3101e 9956static struct pci_driver lpfc_driver = {
9957 .name = LPFC_DRIVER_NAME,
9958 .id_table = lpfc_id_table,
9959 .probe = lpfc_pci_probe_one,
9960 .remove = __devexit_p(lpfc_pci_remove_one),
3a55b532 9961 .suspend = lpfc_pci_suspend_one,
3772a991 9962 .resume = lpfc_pci_resume_one,
2e0fef85 9963 .err_handler = &lpfc_err_handler,
dea3101e 9964};
9965
e59058c4 9966/**
3621a710 9967 * lpfc_init - lpfc module initialization routine
e59058c4
JS		 9968 *
9969 * This routine is to be invoked when the lpfc module is loaded into the
9970 * kernel. The special kernel macro module_init() is used to indicate the
9971 * role of this routine to the kernel as lpfc module entry point.
9972 *
9973 * Return codes
9974 * 0 - successful
9975 * -ENOMEM - FC attach transport failed
9976 * all others - failed
9977 */
dea3101e 9978static int __init
9979lpfc_init(void)
9980{
9981 int error = 0;
9982
9983 printk(LPFC_MODULE_DESC "\n");
c44ce173 9984 printk(LPFC_COPYRIGHT "\n");
dea3101e 9985
7ee5d43e
JS		 9986 if (lpfc_enable_npiv) {
9987 lpfc_transport_functions.vport_create = lpfc_vport_create;
9988 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
9989 }
dea3101e 9990 lpfc_transport_template =
9991 fc_attach_transport(&lpfc_transport_functions);
7ee5d43e 9992 if (lpfc_transport_template == NULL)
dea3101e 9993 return -ENOMEM;
7ee5d43e 9994 if (lpfc_enable_npiv) {
7ee5d43e 9995 lpfc_vport_transport_template =
98c9ea5c
JS		 9996 fc_attach_transport(&lpfc_vport_transport_functions);
9997 if (lpfc_vport_transport_template == NULL) {
9998 fc_release_transport(lpfc_transport_template);
7ee5d43e 9999 return -ENOMEM;
98c9ea5c 10000 }
7ee5d43e 10001 }
dea3101e 10002 error = pci_register_driver(&lpfc_driver);
92d7f7b0 10003 if (error) {
dea3101e 10004 fc_release_transport(lpfc_transport_template);
d7c255b2
JS		 10005 if (lpfc_enable_npiv)
10006 fc_release_transport(lpfc_vport_transport_template);
92d7f7b0 10007 }
dea3101e 10008
10009 return error;
10010}
10011
e59058c4 10012/**
3621a710 10013 * lpfc_exit - lpfc module removal routine
e59058c4
JS		 10014 *
10015 * This routine is invoked when the lpfc module is removed from the kernel.
10016 * The special kernel macro module_exit() is used to indicate the role of
10017 * this routine to the kernel as lpfc module exit point.
10018 */
dea3101e 10019static void __exit
10020lpfc_exit(void)
10021{
10022 pci_unregister_driver(&lpfc_driver);
10023 fc_release_transport(lpfc_transport_template);
7ee5d43e
JS		 10024 if (lpfc_enable_npiv)
10025 fc_release_transport(lpfc_vport_transport_template);
81301a9b 10026 if (_dump_buf_data) {
6a9c52cf
JS		 10027 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
10028 "_dump_buf_data at 0x%p\n",
81301a9b
JS		 10029 (1L << _dump_buf_data_order), _dump_buf_data);
10030 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
10031 }
10032
10033 if (_dump_buf_dif) {
6a9c52cf
JS		 10034 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
10035 "_dump_buf_dif at 0x%p\n",
81301a9b
JS		 10036 (1L << _dump_buf_dif_order), _dump_buf_dif);
10037 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
10038 }
dea3101e 10039}
10040
10041module_init(lpfc_init);
10042module_exit(lpfc_exit);
10043MODULE_LICENSE("GPL");
10044MODULE_DESCRIPTION(LPFC_MODULE_DESC);
10045MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
10046MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
Linux kernel - Deliverables
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