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[SCSI] lpfc 8.3.35: Fix error with fabric service parameters causing performance...
[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. *
d4379acd 4 * Copyright (C) 2004-2012 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>
acf3368f 27#include <linux/module.h>
dea3101e 28#include <linux/kthread.h>
29#include <linux/pci.h>
30#include <linux/spinlock.h>
92d7f7b0 31#include <linux/ctype.h>
0d878419 32#include <linux/aer.h>
5a0e3ad6 33#include <linux/slab.h>
52d52440 34#include <linux/firmware.h>
3ef6d24c 35#include <linux/miscdevice.h>
dea3101e 36
91886523 37#include <scsi/scsi.h>
dea3101e 38#include <scsi/scsi_device.h>
39#include <scsi/scsi_host.h>
40#include <scsi/scsi_transport_fc.h>
41
da0436e9 42#include "lpfc_hw4.h"
dea3101e 43#include "lpfc_hw.h"
44#include "lpfc_sli.h"
da0436e9 45#include "lpfc_sli4.h"
ea2151b4 46#include "lpfc_nl.h"
dea3101e 47#include "lpfc_disc.h"
48#include "lpfc_scsi.h"
49#include "lpfc.h"
50#include "lpfc_logmsg.h"
51#include "lpfc_crtn.h"
92d7f7b0 52#include "lpfc_vport.h"
dea3101e 53#include "lpfc_version.h"
54
81301a9b
JS		 55char *_dump_buf_data;
56unsigned long _dump_buf_data_order;
57char *_dump_buf_dif;
58unsigned long _dump_buf_dif_order;
59spinlock_t _dump_buf_lock;
60
dea3101e 61static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
62static int lpfc_post_rcv_buf(struct lpfc_hba *);
5350d872 63static int lpfc_sli4_queue_verify(struct lpfc_hba *);
da0436e9
JS		 64static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
65static int lpfc_setup_endian_order(struct lpfc_hba *);
da0436e9 66static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
8a9d2e80
JS		 67static void lpfc_free_els_sgl_list(struct lpfc_hba *);
68static void lpfc_init_sgl_list(struct lpfc_hba *);
da0436e9
JS		 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 *);
618a5230
JS		 76static void lpfc_sli4_disable_intr(struct lpfc_hba *);
77static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
dea3101e 78
79static struct scsi_transport_template *lpfc_transport_template = NULL;
92d7f7b0 80static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
dea3101e 81static DEFINE_IDR(lpfc_hba_index);
82
e59058c4 83/**
3621a710 84 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
e59058c4
JS		 85 * @phba: pointer to lpfc hba data structure.
86 *
87 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
88 * mailbox command. It retrieves the revision information from the HBA and
89 * collects the Vital Product Data (VPD) about the HBA for preparing the
90 * configuration of the HBA.
91 *
92 * Return codes:
93 * 0 - success.
94 * -ERESTART - requests the SLI layer to reset the HBA and try again.
95 * Any other value - indicates an error.
96 **/
dea3101e 97int
2e0fef85 98lpfc_config_port_prep(struct lpfc_hba *phba)
dea3101e 99{
100 lpfc_vpd_t *vp = &phba->vpd;
101 int i = 0, rc;
102 LPFC_MBOXQ_t *pmb;
103 MAILBOX_t *mb;
104 char *lpfc_vpd_data = NULL;
105 uint16_t offset = 0;
106 static char licensed[56] =
107 "key unlock for use with gnu public licensed code only\0";
65a29c16 108 static int init_key = 1;
dea3101e 109
110 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
111 if (!pmb) {
2e0fef85 112 phba->link_state = LPFC_HBA_ERROR;
dea3101e 113 return -ENOMEM;
114 }
115
04c68496 116 mb = &pmb->u.mb;
2e0fef85 117 phba->link_state = LPFC_INIT_MBX_CMDS;
dea3101e 118
119 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
65a29c16
JS		 120 if (init_key) {
121 uint32_t *ptext = (uint32_t *) licensed;
dea3101e 122
65a29c16
JS		 123 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
124 *ptext = cpu_to_be32(*ptext);
125 init_key = 0;
126 }
dea3101e 127
128 lpfc_read_nv(phba, pmb);
129 memset((char*)mb->un.varRDnvp.rsvd3, 0,
130 sizeof (mb->un.varRDnvp.rsvd3));
131 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
132 sizeof (licensed));
133
134 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
135
136 if (rc != MBX_SUCCESS) {
ed957684 137 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
e8b62011 138 "0324 Config Port initialization "
dea3101e 139 "error, mbxCmd x%x READ_NVPARM, "
140 "mbxStatus x%x\n",
dea3101e 141 mb->mbxCommand, mb->mbxStatus);
142 mempool_free(pmb, phba->mbox_mem_pool);
143 return -ERESTART;
144 }
145 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
2e0fef85
JS		 146 sizeof(phba->wwnn));
147 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
148 sizeof(phba->wwpn));
dea3101e 149 }
150
92d7f7b0
JS		 151 phba->sli3_options = 0x0;
152
dea3101e 153 /* Setup and issue mailbox READ REV command */
154 lpfc_read_rev(phba, pmb);
155 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
156 if (rc != MBX_SUCCESS) {
ed957684 157 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 158 "0439 Adapter failed to init, mbxCmd x%x "
dea3101e 159 "READ_REV, mbxStatus x%x\n",
dea3101e 160 mb->mbxCommand, mb->mbxStatus);
161 mempool_free( pmb, phba->mbox_mem_pool);
162 return -ERESTART;
163 }
164
92d7f7b0 165
1de933f3
JSEC		 166 /*
167 * The value of rr must be 1 since the driver set the cv field to 1.
168 * This setting requires the FW to set all revision fields.
dea3101e 169 */
1de933f3 170 if (mb->un.varRdRev.rr == 0) {
dea3101e 171 vp->rev.rBit = 0;
1de933f3 172 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011
JS		 173 "0440 Adapter failed to init, READ_REV has "
174 "missing revision information.\n");
dea3101e 175 mempool_free(pmb, phba->mbox_mem_pool);
176 return -ERESTART;
dea3101e 177 }
178
495a714c
JS		 179 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
180 mempool_free(pmb, phba->mbox_mem_pool);
ed957684 181 return -EINVAL;
495a714c 182 }
ed957684 183
dea3101e 184 /* Save information as VPD data */
1de933f3 185 vp->rev.rBit = 1;
92d7f7b0 186 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
1de933f3
JSEC		 187 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
188 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
189 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
190 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
dea3101e 191 vp->rev.biuRev = mb->un.varRdRev.biuRev;
192 vp->rev.smRev = mb->un.varRdRev.smRev;
193 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
194 vp->rev.endecRev = mb->un.varRdRev.endecRev;
195 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
196 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
197 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
198 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
199 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
200 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
201
92d7f7b0
JS		 202 /* If the sli feature level is less then 9, we must
203 * tear down all RPIs and VPIs on link down if NPIV
204 * is enabled.
205 */
206 if (vp->rev.feaLevelHigh < 9)
207 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
208
dea3101e 209 if (lpfc_is_LC_HBA(phba->pcidev->device))
210 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
211 sizeof (phba->RandomData));
212
dea3101e 213 /* Get adapter VPD information */
dea3101e 214 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
215 if (!lpfc_vpd_data)
d7c255b2 216 goto out_free_mbox;
dea3101e 217 do {
a0c87cbd 218 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
dea3101e 219 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
220
221 if (rc != MBX_SUCCESS) {
222 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011 223 "0441 VPD not present on adapter, "
dea3101e 224 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
dea3101e 225 mb->mbxCommand, mb->mbxStatus);
74b72a59 226 mb->un.varDmp.word_cnt = 0;
dea3101e 227 }
04c68496
JS		 228 /* dump mem may return a zero when finished or we got a
229 * mailbox error, either way we are done.
230 */
231 if (mb->un.varDmp.word_cnt == 0)
232 break;
74b72a59
JW		 233 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
234 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
d7c255b2
JS		 235 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
236 lpfc_vpd_data + offset,
92d7f7b0 237 mb->un.varDmp.word_cnt);
dea3101e 238 offset += mb->un.varDmp.word_cnt;
74b72a59
JW		 239 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
240 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
dea3101e 241
242 kfree(lpfc_vpd_data);
dea3101e 243out_free_mbox:
244 mempool_free(pmb, phba->mbox_mem_pool);
245 return 0;
246}
247
e59058c4 248/**
3621a710 249 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
e59058c4
JS		 250 * @phba: pointer to lpfc hba data structure.
251 * @pmboxq: pointer to the driver internal queue element for mailbox command.
252 *
253 * This is the completion handler for driver's configuring asynchronous event
254 * mailbox command to the device. If the mailbox command returns successfully,
255 * it will set internal async event support flag to 1; otherwise, it will
256 * set internal async event support flag to 0.
257 **/
57127f15
JS		 258static void
259lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
260{
04c68496 261 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
57127f15
JS		 262 phba->temp_sensor_support = 1;
263 else
264 phba->temp_sensor_support = 0;
265 mempool_free(pmboxq, phba->mbox_mem_pool);
266 return;
267}
268
97207482 269/**
3621a710 270 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
97207482
JS		 271 * @phba: pointer to lpfc hba data structure.
272 * @pmboxq: pointer to the driver internal queue element for mailbox command.
273 *
274 * This is the completion handler for dump mailbox command for getting
275 * wake up parameters. When this command complete, the response contain
276 * Option rom version of the HBA. This function translate the version number
277 * into a human readable string and store it in OptionROMVersion.
278 **/
279static void
280lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
281{
282 struct prog_id *prg;
283 uint32_t prog_id_word;
284 char dist = ' ';
285 /* character array used for decoding dist type. */
286 char dist_char[] = "nabx";
287
04c68496 288 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
9f1e1b50 289 mempool_free(pmboxq, phba->mbox_mem_pool);
97207482 290 return;
9f1e1b50 291 }
97207482
JS		 292
293 prg = (struct prog_id *) &prog_id_word;
294
295 /* word 7 contain option rom version */
04c68496 296 prog_id_word = pmboxq->u.mb.un.varWords[7];
97207482
JS		 297
298 /* Decode the Option rom version word to a readable string */
299 if (prg->dist < 4)
300 dist = dist_char[prg->dist];
301
302 if ((prg->dist == 3) && (prg->num == 0))
303 sprintf(phba->OptionROMVersion, "%d.%d%d",
304 prg->ver, prg->rev, prg->lev);
305 else
306 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
307 prg->ver, prg->rev, prg->lev,
308 dist, prg->num);
9f1e1b50 309 mempool_free(pmboxq, phba->mbox_mem_pool);
97207482
JS		 310 return;
311}
312
0558056c
JS		 313/**
314 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
315 * cfg_soft_wwnn, cfg_soft_wwpn
316 * @vport: pointer to lpfc vport data structure.
317 *
318 *
319 * Return codes
320 * None.
321 **/
322void
323lpfc_update_vport_wwn(struct lpfc_vport *vport)
324{
325 /* If the soft name exists then update it using the service params */
326 if (vport->phba->cfg_soft_wwnn)
327 u64_to_wwn(vport->phba->cfg_soft_wwnn,
328 vport->fc_sparam.nodeName.u.wwn);
329 if (vport->phba->cfg_soft_wwpn)
330 u64_to_wwn(vport->phba->cfg_soft_wwpn,
331 vport->fc_sparam.portName.u.wwn);
332
333 /*
334 * If the name is empty or there exists a soft name
335 * then copy the service params name, otherwise use the fc name
336 */
337 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
338 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
339 sizeof(struct lpfc_name));
340 else
341 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
342 sizeof(struct lpfc_name));
343
344 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
345 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
346 sizeof(struct lpfc_name));
347 else
348 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
349 sizeof(struct lpfc_name));
350}
351
e59058c4 352/**
3621a710 353 * lpfc_config_port_post - Perform lpfc initialization after config port
e59058c4
JS		 354 * @phba: pointer to lpfc hba data structure.
355 *
356 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
357 * command call. It performs all internal resource and state setups on the
358 * port: post IOCB buffers, enable appropriate host interrupt attentions,
359 * ELS ring timers, etc.
360 *
361 * Return codes
362 * 0 - success.
363 * Any other value - error.
364 **/
dea3101e 365int
2e0fef85 366lpfc_config_port_post(struct lpfc_hba *phba)
dea3101e 367{
2e0fef85 368 struct lpfc_vport *vport = phba->pport;
a257bf90 369 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 370 LPFC_MBOXQ_t *pmb;
371 MAILBOX_t *mb;
372 struct lpfc_dmabuf *mp;
373 struct lpfc_sli *psli = &phba->sli;
374 uint32_t status, timeout;
2e0fef85
JS		 375 int i, j;
376 int rc;
dea3101e 377
7af67051
JS		 378 spin_lock_irq(&phba->hbalock);
379 /*
380 * If the Config port completed correctly the HBA is not
381 * over heated any more.
382 */
383 if (phba->over_temp_state == HBA_OVER_TEMP)
384 phba->over_temp_state = HBA_NORMAL_TEMP;
385 spin_unlock_irq(&phba->hbalock);
386
dea3101e 387 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
388 if (!pmb) {
2e0fef85 389 phba->link_state = LPFC_HBA_ERROR;
dea3101e 390 return -ENOMEM;
391 }
04c68496 392 mb = &pmb->u.mb;
dea3101e 393
dea3101e 394 /* Get login parameters for NID. */
9f1177a3
JS		 395 rc = lpfc_read_sparam(phba, pmb, 0);
396 if (rc) {
397 mempool_free(pmb, phba->mbox_mem_pool);
398 return -ENOMEM;
399 }
400
ed957684 401 pmb->vport = vport;
dea3101e 402 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
ed957684 403 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 404 "0448 Adapter failed init, mbxCmd x%x "
dea3101e 405 "READ_SPARM mbxStatus x%x\n",
dea3101e 406 mb->mbxCommand, mb->mbxStatus);
2e0fef85 407 phba->link_state = LPFC_HBA_ERROR;
dea3101e 408 mp = (struct lpfc_dmabuf *) pmb->context1;
9f1177a3 409 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 410 lpfc_mbuf_free(phba, mp->virt, mp->phys);
411 kfree(mp);
412 return -EIO;
413 }
414
415 mp = (struct lpfc_dmabuf *) pmb->context1;
416
2e0fef85 417 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
dea3101e 418 lpfc_mbuf_free(phba, mp->virt, mp->phys);
419 kfree(mp);
420 pmb->context1 = NULL;
0558056c 421 lpfc_update_vport_wwn(vport);
a257bf90
JS		 422
423 /* Update the fc_host data structures with new wwn. */
424 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
425 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
21e9a0a5 426 fc_host_max_npiv_vports(shost) = phba->max_vpi;
a257bf90 427
dea3101e 428 /* If no serial number in VPD data, use low 6 bytes of WWNN */
429 /* This should be consolidated into parse_vpd ? - mr */
430 if (phba->SerialNumber[0] == 0) {
431 uint8_t *outptr;
432
2e0fef85 433 outptr = &vport->fc_nodename.u.s.IEEE[0];
dea3101e 434 for (i = 0; i < 12; i++) {
435 status = *outptr++;
436 j = ((status & 0xf0) >> 4);
437 if (j <= 9)
438 phba->SerialNumber[i] =
439 (char)((uint8_t) 0x30 + (uint8_t) j);
440 else
441 phba->SerialNumber[i] =
442 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
443 i++;
444 j = (status & 0xf);
445 if (j <= 9)
446 phba->SerialNumber[i] =
447 (char)((uint8_t) 0x30 + (uint8_t) j);
448 else
449 phba->SerialNumber[i] =
450 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
451 }
452 }
453
dea3101e 454 lpfc_read_config(phba, pmb);
ed957684 455 pmb->vport = vport;
dea3101e 456 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
ed957684 457 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 458 "0453 Adapter failed to init, mbxCmd x%x "
dea3101e 459 "READ_CONFIG, mbxStatus x%x\n",
dea3101e 460 mb->mbxCommand, mb->mbxStatus);
2e0fef85 461 phba->link_state = LPFC_HBA_ERROR;
dea3101e 462 mempool_free( pmb, phba->mbox_mem_pool);
463 return -EIO;
464 }
465
a0c87cbd
JS		 466 /* Check if the port is disabled */
467 lpfc_sli_read_link_ste(phba);
468
dea3101e 469 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
470 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
471 phba->cfg_hba_queue_depth =
f1126688
JS		 472 (mb->un.varRdConfig.max_xri + 1) -
473 lpfc_sli4_get_els_iocb_cnt(phba);
dea3101e 474
475 phba->lmt = mb->un.varRdConfig.lmt;
74b72a59
JW		 476
477 /* Get the default values for Model Name and Description */
478 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
479
2e0fef85 480 phba->link_state = LPFC_LINK_DOWN;
dea3101e 481
0b727fea 482 /* Only process IOCBs on ELS ring till hba_state is READY */
7e56aa25 483 if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
a4bc3379 484 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
7e56aa25 485 if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
dea3101e 486 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
7e56aa25 487 if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
dea3101e 488 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
489
490 /* Post receive buffers for desired rings */
ed957684
JS		 491 if (phba->sli_rev != 3)
492 lpfc_post_rcv_buf(phba);
dea3101e 493
9399627f
JS		 494 /*
495 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
496 */
497 if (phba->intr_type == MSIX) {
498 rc = lpfc_config_msi(phba, pmb);
499 if (rc) {
500 mempool_free(pmb, phba->mbox_mem_pool);
501 return -EIO;
502 }
503 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
504 if (rc != MBX_SUCCESS) {
505 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
506 "0352 Config MSI mailbox command "
507 "failed, mbxCmd x%x, mbxStatus x%x\n",
04c68496
JS		 508 pmb->u.mb.mbxCommand,
509 pmb->u.mb.mbxStatus);
9399627f
JS		 510 mempool_free(pmb, phba->mbox_mem_pool);
511 return -EIO;
512 }
513 }
514
04c68496 515 spin_lock_irq(&phba->hbalock);
9399627f
JS		 516 /* Initialize ERATT handling flag */
517 phba->hba_flag &= ~HBA_ERATT_HANDLED;
518
dea3101e 519 /* Enable appropriate host interrupts */
9940b97b
JS		 520 if (lpfc_readl(phba->HCregaddr, &status)) {
521 spin_unlock_irq(&phba->hbalock);
522 return -EIO;
523 }
dea3101e 524 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
525 if (psli->num_rings > 0)
526 status |= HC_R0INT_ENA;
527 if (psli->num_rings > 1)
528 status |= HC_R1INT_ENA;
529 if (psli->num_rings > 2)
530 status |= HC_R2INT_ENA;
531 if (psli->num_rings > 3)
532 status |= HC_R3INT_ENA;
533
875fbdfe
JSEC		 534 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
535 (phba->cfg_poll & DISABLE_FCP_RING_INT))
9399627f 536 status &= ~(HC_R0INT_ENA);
875fbdfe 537
dea3101e 538 writel(status, phba->HCregaddr);
539 readl(phba->HCregaddr); /* flush */
2e0fef85 540 spin_unlock_irq(&phba->hbalock);
dea3101e 541
9399627f
JS		 542 /* Set up ring-0 (ELS) timer */
543 timeout = phba->fc_ratov * 2;
2e0fef85 544 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
9399627f 545 /* Set up heart beat (HB) timer */
858c9f6c
JS		 546 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
547 phba->hb_outstanding = 0;
548 phba->last_completion_time = jiffies;
9399627f
JS		 549 /* Set up error attention (ERATT) polling timer */
550 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
dea3101e 551
a0c87cbd
JS		 552 if (phba->hba_flag & LINK_DISABLED) {
553 lpfc_printf_log(phba,
554 KERN_ERR, LOG_INIT,
555 "2598 Adapter Link is disabled.\n");
556 lpfc_down_link(phba, pmb);
557 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
558 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
559 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
560 lpfc_printf_log(phba,
561 KERN_ERR, LOG_INIT,
562 "2599 Adapter failed to issue DOWN_LINK"
563 " mbox command rc 0x%x\n", rc);
564
565 mempool_free(pmb, phba->mbox_mem_pool);
566 return -EIO;
567 }
e40a02c1 568 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
026abb87
JS		 569 mempool_free(pmb, phba->mbox_mem_pool);
570 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
571 if (rc)
572 return rc;
dea3101e 573 }
574 /* MBOX buffer will be freed in mbox compl */
57127f15 575 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9f1177a3
JS		 576 if (!pmb) {
577 phba->link_state = LPFC_HBA_ERROR;
578 return -ENOMEM;
579 }
580
57127f15
JS		 581 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
582 pmb->mbox_cmpl = lpfc_config_async_cmpl;
583 pmb->vport = phba->pport;
584 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
dea3101e 585
57127f15
JS		 586 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
587 lpfc_printf_log(phba,
588 KERN_ERR,
589 LOG_INIT,
590 "0456 Adapter failed to issue "
e4e74273 591 "ASYNCEVT_ENABLE mbox status x%x\n",
57127f15
JS		 592 rc);
593 mempool_free(pmb, phba->mbox_mem_pool);
594 }
97207482
JS		 595
596 /* Get Option rom version */
597 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9f1177a3
JS		 598 if (!pmb) {
599 phba->link_state = LPFC_HBA_ERROR;
600 return -ENOMEM;
601 }
602
97207482
JS		 603 lpfc_dump_wakeup_param(phba, pmb);
604 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
605 pmb->vport = phba->pport;
606 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
607
608 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
609 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
e4e74273 610 "to get Option ROM version status x%x\n", rc);
97207482
JS		 611 mempool_free(pmb, phba->mbox_mem_pool);
612 }
613
d7c255b2 614 return 0;
ce8b3ce5
JS		 615}
616
84d1b006
JS		 617/**
618 * lpfc_hba_init_link - Initialize the FC link
619 * @phba: pointer to lpfc hba data structure.
6e7288d9 620 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
84d1b006
JS		 621 *
622 * This routine will issue the INIT_LINK mailbox command call.
623 * It is available to other drivers through the lpfc_hba data
624 * structure for use as a delayed link up mechanism with the
625 * module parameter lpfc_suppress_link_up.
626 *
627 * Return code
628 * 0 - success
629 * Any other value - error
630 **/
631int
6e7288d9 632lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
1b51197d
JS		 633{
634 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
635}
636
637/**
638 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
639 * @phba: pointer to lpfc hba data structure.
640 * @fc_topology: desired fc topology.
641 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
642 *
643 * This routine will issue the INIT_LINK mailbox command call.
644 * It is available to other drivers through the lpfc_hba data
645 * structure for use as a delayed link up mechanism with the
646 * module parameter lpfc_suppress_link_up.
647 *
648 * Return code
649 * 0 - success
650 * Any other value - error
651 **/
652int
653lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
654 uint32_t flag)
84d1b006
JS		 655{
656 struct lpfc_vport *vport = phba->pport;
657 LPFC_MBOXQ_t *pmb;
658 MAILBOX_t *mb;
659 int rc;
660
661 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
662 if (!pmb) {
663 phba->link_state = LPFC_HBA_ERROR;
664 return -ENOMEM;
665 }
666 mb = &pmb->u.mb;
667 pmb->vport = vport;
668
026abb87
JS		 669 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
670 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
671 !(phba->lmt & LMT_1Gb)) ||
672 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
673 !(phba->lmt & LMT_2Gb)) ||
674 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
675 !(phba->lmt & LMT_4Gb)) ||
676 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
677 !(phba->lmt & LMT_8Gb)) ||
678 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
679 !(phba->lmt & LMT_10Gb)) ||
680 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
681 !(phba->lmt & LMT_16Gb))) {
682 /* Reset link speed to auto */
683 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
684 "1302 Invalid speed for this board:%d "
685 "Reset link speed to auto.\n",
686 phba->cfg_link_speed);
687 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
688 }
1b51197d 689 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
84d1b006 690 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1b51197d
JS		 691 if (phba->sli_rev < LPFC_SLI_REV4)
692 lpfc_set_loopback_flag(phba);
6e7288d9 693 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
76a95d75 694 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
84d1b006
JS		 695 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
696 "0498 Adapter failed to init, mbxCmd x%x "
697 "INIT_LINK, mbxStatus x%x\n",
698 mb->mbxCommand, mb->mbxStatus);
76a95d75
JS		 699 if (phba->sli_rev <= LPFC_SLI_REV3) {
700 /* Clear all interrupt enable conditions */
701 writel(0, phba->HCregaddr);
702 readl(phba->HCregaddr); /* flush */
703 /* Clear all pending interrupts */
704 writel(0xffffffff, phba->HAregaddr);
705 readl(phba->HAregaddr); /* flush */
706 }
84d1b006 707 phba->link_state = LPFC_HBA_ERROR;
6e7288d9 708 if (rc != MBX_BUSY || flag == MBX_POLL)
84d1b006
JS		 709 mempool_free(pmb, phba->mbox_mem_pool);
710 return -EIO;
711 }
e40a02c1 712 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
6e7288d9
JS		 713 if (flag == MBX_POLL)
714 mempool_free(pmb, phba->mbox_mem_pool);
84d1b006
JS		 715
716 return 0;
717}
718
719/**
720 * lpfc_hba_down_link - this routine downs the FC link
6e7288d9
JS		 721 * @phba: pointer to lpfc hba data structure.
722 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
84d1b006
JS		 723 *
724 * This routine will issue the DOWN_LINK mailbox command call.
725 * It is available to other drivers through the lpfc_hba data
726 * structure for use to stop the link.
727 *
728 * Return code
729 * 0 - success
730 * Any other value - error
731 **/
732int
6e7288d9 733lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
84d1b006
JS		 734{
735 LPFC_MBOXQ_t *pmb;
736 int rc;
737
738 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
739 if (!pmb) {
740 phba->link_state = LPFC_HBA_ERROR;
741 return -ENOMEM;
742 }
743
744 lpfc_printf_log(phba,
745 KERN_ERR, LOG_INIT,
746 "0491 Adapter Link is disabled.\n");
747 lpfc_down_link(phba, pmb);
748 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
6e7288d9 749 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
84d1b006
JS		 750 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
751 lpfc_printf_log(phba,
752 KERN_ERR, LOG_INIT,
753 "2522 Adapter failed to issue DOWN_LINK"
754 " mbox command rc 0x%x\n", rc);
755
756 mempool_free(pmb, phba->mbox_mem_pool);
757 return -EIO;
758 }
6e7288d9
JS		 759 if (flag == MBX_POLL)
760 mempool_free(pmb, phba->mbox_mem_pool);
761
84d1b006
JS		 762 return 0;
763}
764
e59058c4 765/**
3621a710 766 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
e59058c4
JS		 767 * @phba: pointer to lpfc HBA data structure.
768 *
769 * This routine will do LPFC uninitialization before the HBA is reset when
770 * bringing down the SLI Layer.
771 *
772 * Return codes
773 * 0 - success.
774 * Any other value - error.
775 **/
dea3101e 776int
2e0fef85 777lpfc_hba_down_prep(struct lpfc_hba *phba)
dea3101e 778{
1b32f6aa
JS		 779 struct lpfc_vport **vports;
780 int i;
3772a991
JS		 781
782 if (phba->sli_rev <= LPFC_SLI_REV3) {
783 /* Disable interrupts */
784 writel(0, phba->HCregaddr);
785 readl(phba->HCregaddr); /* flush */
786 }
dea3101e 787
1b32f6aa
JS		 788 if (phba->pport->load_flag & FC_UNLOADING)
789 lpfc_cleanup_discovery_resources(phba->pport);
790 else {
791 vports = lpfc_create_vport_work_array(phba);
792 if (vports != NULL)
3772a991
JS		 793 for (i = 0; i <= phba->max_vports &&
794 vports[i] != NULL; i++)
1b32f6aa
JS		 795 lpfc_cleanup_discovery_resources(vports[i]);
796 lpfc_destroy_vport_work_array(phba, vports);
7f5f3d0d
JS		 797 }
798 return 0;
dea3101e 799}
800
e59058c4 801/**
3772a991 802 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
e59058c4
JS		 803 * @phba: pointer to lpfc HBA data structure.
804 *
805 * This routine will do uninitialization after the HBA is reset when bring
806 * down the SLI Layer.
807 *
808 * Return codes
af901ca1 809 * 0 - success.
e59058c4
JS		 810 * Any other value - error.
811 **/
3772a991
JS		 812static int
813lpfc_hba_down_post_s3(struct lpfc_hba *phba)
41415862
JW		 814{
815 struct lpfc_sli *psli = &phba->sli;
816 struct lpfc_sli_ring *pring;
817 struct lpfc_dmabuf *mp, *next_mp;
09372820 818 LIST_HEAD(completions);
41415862
JW		 819 int i;
820
92d7f7b0
JS		 821 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
822 lpfc_sli_hbqbuf_free_all(phba);
823 else {
824 /* Cleanup preposted buffers on the ELS ring */
825 pring = &psli->ring[LPFC_ELS_RING];
826 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
827 list_del(&mp->list);
828 pring->postbufq_cnt--;
829 lpfc_mbuf_free(phba, mp->virt, mp->phys);
830 kfree(mp);
831 }
41415862
JW		 832 }
833
09372820 834 spin_lock_irq(&phba->hbalock);
41415862
JW		 835 for (i = 0; i < psli->num_rings; i++) {
836 pring = &psli->ring[i];
09372820
JS		 837
838 /* At this point in time the HBA is either reset or DOA. Either
839 * way, nothing should be on txcmplq as it will NEVER complete.
840 */
841 list_splice_init(&pring->txcmplq, &completions);
842 pring->txcmplq_cnt = 0;
843 spin_unlock_irq(&phba->hbalock);
844
a257bf90
JS		 845 /* Cancel all the IOCBs from the completions list */
846 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
847 IOERR_SLI_ABORTED);
09372820 848
41415862 849 lpfc_sli_abort_iocb_ring(phba, pring);
09372820 850 spin_lock_irq(&phba->hbalock);
41415862 851 }
09372820 852 spin_unlock_irq(&phba->hbalock);
41415862
JW		 853
854 return 0;
855}
5af5eee7 856
da0436e9
JS		 857/**
858 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
859 * @phba: pointer to lpfc HBA data structure.
860 *
861 * This routine will do uninitialization after the HBA is reset when bring
862 * down the SLI Layer.
863 *
864 * Return codes
af901ca1 865 * 0 - success.
da0436e9
JS		 866 * Any other value - error.
867 **/
868static int
869lpfc_hba_down_post_s4(struct lpfc_hba *phba)
870{
871 struct lpfc_scsi_buf *psb, *psb_next;
872 LIST_HEAD(aborts);
873 int ret;
874 unsigned long iflag = 0;
0f65ff68
JS		 875 struct lpfc_sglq *sglq_entry = NULL;
876
da0436e9
JS		 877 ret = lpfc_hba_down_post_s3(phba);
878 if (ret)
879 return ret;
880 /* At this point in time the HBA is either reset or DOA. Either
881 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
882 * on the lpfc_sgl_list so that it can either be freed if the
883 * driver is unloading or reposted if the driver is restarting
884 * the port.
885 */
886 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
887 /* scsl_buf_list */
888 /* abts_sgl_list_lock required because worker thread uses this
889 * list.
890 */
891 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
0f65ff68
JS		 892 list_for_each_entry(sglq_entry,
893 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
894 sglq_entry->state = SGL_FREED;
895
da0436e9
JS		 896 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
897 &phba->sli4_hba.lpfc_sgl_list);
898 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
899 /* abts_scsi_buf_list_lock required because worker thread uses this
900 * list.
901 */
902 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
903 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
904 &aborts);
905 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
906 spin_unlock_irq(&phba->hbalock);
907
908 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
909 psb->pCmd = NULL;
910 psb->status = IOSTAT_SUCCESS;
911 }
912 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
913 list_splice(&aborts, &phba->lpfc_scsi_buf_list);
914 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
915 return 0;
916}
917
918/**
919 * lpfc_hba_down_post - Wrapper func for hba down post routine
920 * @phba: pointer to lpfc HBA data structure.
921 *
922 * This routine wraps the actual SLI3 or SLI4 routine for performing
923 * uninitialization after the HBA is reset when bring down the SLI Layer.
924 *
925 * Return codes
af901ca1 926 * 0 - success.
da0436e9
JS		 927 * Any other value - error.
928 **/
929int
930lpfc_hba_down_post(struct lpfc_hba *phba)
931{
932 return (*phba->lpfc_hba_down_post)(phba);
933}
41415862 934
e59058c4 935/**
3621a710 936 * lpfc_hb_timeout - The HBA-timer timeout handler
e59058c4
JS		 937 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
938 *
939 * This is the HBA-timer timeout handler registered to the lpfc driver. When
940 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
941 * work-port-events bitmap and the worker thread is notified. This timeout
942 * event will be used by the worker thread to invoke the actual timeout
943 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
944 * be performed in the timeout handler and the HBA timeout event bit shall
945 * be cleared by the worker thread after it has taken the event bitmap out.
946 **/
a6ababd2 947static void
858c9f6c
JS		 948lpfc_hb_timeout(unsigned long ptr)
949{
950 struct lpfc_hba *phba;
5e9d9b82 951 uint32_t tmo_posted;
858c9f6c
JS		 952 unsigned long iflag;
953
954 phba = (struct lpfc_hba *)ptr;
9399627f
JS		 955
956 /* Check for heart beat timeout conditions */
858c9f6c 957 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
5e9d9b82
JS		 958 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
959 if (!tmo_posted)
858c9f6c
JS		 960 phba->pport->work_port_events |= WORKER_HB_TMO;
961 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
962
9399627f 963 /* Tell the worker thread there is work to do */
5e9d9b82
JS		 964 if (!tmo_posted)
965 lpfc_worker_wake_up(phba);
858c9f6c
JS		 966 return;
967}
968
19ca7609
JS		 969/**
970 * lpfc_rrq_timeout - The RRQ-timer timeout handler
971 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
972 *
973 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
974 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
975 * work-port-events bitmap and the worker thread is notified. This timeout
976 * event will be used by the worker thread to invoke the actual timeout
977 * handler routine, lpfc_rrq_handler. Any periodical operations will
978 * be performed in the timeout handler and the RRQ timeout event bit shall
979 * be cleared by the worker thread after it has taken the event bitmap out.
980 **/
981static void
982lpfc_rrq_timeout(unsigned long ptr)
983{
984 struct lpfc_hba *phba;
19ca7609
JS		 985 unsigned long iflag;
986
987 phba = (struct lpfc_hba *)ptr;
988 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1151e3ec 989 phba->hba_flag |= HBA_RRQ_ACTIVE;
19ca7609 990 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1151e3ec 991 lpfc_worker_wake_up(phba);
19ca7609
JS		 992}
993
e59058c4 994/**
3621a710 995 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
e59058c4
JS		 996 * @phba: pointer to lpfc hba data structure.
997 * @pmboxq: pointer to the driver internal queue element for mailbox command.
998 *
999 * This is the callback function to the lpfc heart-beat mailbox command.
1000 * If configured, the lpfc driver issues the heart-beat mailbox command to
1001 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1002 * heart-beat mailbox command is issued, the driver shall set up heart-beat
1003 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1004 * heart-beat outstanding state. Once the mailbox command comes back and
1005 * no error conditions detected, the heart-beat mailbox command timer is
1006 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1007 * state is cleared for the next heart-beat. If the timer expired with the
1008 * heart-beat outstanding state set, the driver will put the HBA offline.
1009 **/
858c9f6c
JS		 1010static void
1011lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1012{
1013 unsigned long drvr_flag;
1014
1015 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1016 phba->hb_outstanding = 0;
1017 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1018
9399627f 1019 /* Check and reset heart-beat timer is necessary */
858c9f6c
JS		 1020 mempool_free(pmboxq, phba->mbox_mem_pool);
1021 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1022 !(phba->link_state == LPFC_HBA_ERROR) &&
51ef4c26 1023 !(phba->pport->load_flag & FC_UNLOADING))
858c9f6c
JS		 1024 mod_timer(&phba->hb_tmofunc,
1025 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1026 return;
1027}
1028
e59058c4 1029/**
3621a710 1030 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
e59058c4
JS		 1031 * @phba: pointer to lpfc hba data structure.
1032 *
1033 * This is the actual HBA-timer timeout handler to be invoked by the worker
1034 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1035 * handler performs any periodic operations needed for the device. If such
1036 * periodic event has already been attended to either in the interrupt handler
1037 * or by processing slow-ring or fast-ring events within the HBA-timer
1038 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1039 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1040 * is configured and there is no heart-beat mailbox command outstanding, a
1041 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1042 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1043 * to offline.
1044 **/
858c9f6c
JS		 1045void
1046lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1047{
45ed1190 1048 struct lpfc_vport **vports;
858c9f6c 1049 LPFC_MBOXQ_t *pmboxq;
0ff10d46 1050 struct lpfc_dmabuf *buf_ptr;
45ed1190 1051 int retval, i;
858c9f6c 1052 struct lpfc_sli *psli = &phba->sli;
0ff10d46 1053 LIST_HEAD(completions);
858c9f6c 1054
45ed1190
JS		 1055 vports = lpfc_create_vport_work_array(phba);
1056 if (vports != NULL)
1057 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1058 lpfc_rcv_seq_check_edtov(vports[i]);
1059 lpfc_destroy_vport_work_array(phba, vports);
1060
858c9f6c 1061 if ((phba->link_state == LPFC_HBA_ERROR) ||
51ef4c26 1062 (phba->pport->load_flag & FC_UNLOADING) ||
858c9f6c
JS		 1063 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1064 return;
1065
1066 spin_lock_irq(&phba->pport->work_port_lock);
858c9f6c
JS		 1067
1068 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1069 jiffies)) {
1070 spin_unlock_irq(&phba->pport->work_port_lock);
1071 if (!phba->hb_outstanding)
1072 mod_timer(&phba->hb_tmofunc,
1073 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1074 else
1075 mod_timer(&phba->hb_tmofunc,
1076 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1077 return;
1078 }
1079 spin_unlock_irq(&phba->pport->work_port_lock);
1080
0ff10d46
JS		 1081 if (phba->elsbuf_cnt &&
1082 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1083 spin_lock_irq(&phba->hbalock);
1084 list_splice_init(&phba->elsbuf, &completions);
1085 phba->elsbuf_cnt = 0;
1086 phba->elsbuf_prev_cnt = 0;
1087 spin_unlock_irq(&phba->hbalock);
1088
1089 while (!list_empty(&completions)) {
1090 list_remove_head(&completions, buf_ptr,
1091 struct lpfc_dmabuf, list);
1092 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1093 kfree(buf_ptr);
1094 }
1095 }
1096 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1097
858c9f6c 1098 /* If there is no heart beat outstanding, issue a heartbeat command */
13815c83
JS		 1099 if (phba->cfg_enable_hba_heartbeat) {
1100 if (!phba->hb_outstanding) {
bc73905a
JS		 1101 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1102 (list_empty(&psli->mboxq))) {
1103 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1104 GFP_KERNEL);
1105 if (!pmboxq) {
1106 mod_timer(&phba->hb_tmofunc,
1107 jiffies +
1108 HZ * LPFC_HB_MBOX_INTERVAL);
1109 return;
1110 }
1111
1112 lpfc_heart_beat(phba, pmboxq);
1113 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1114 pmboxq->vport = phba->pport;
1115 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1116 MBX_NOWAIT);
1117
1118 if (retval != MBX_BUSY &&
1119 retval != MBX_SUCCESS) {
1120 mempool_free(pmboxq,
1121 phba->mbox_mem_pool);
1122 mod_timer(&phba->hb_tmofunc,
1123 jiffies +
1124 HZ * LPFC_HB_MBOX_INTERVAL);
1125 return;
1126 }
1127 phba->skipped_hb = 0;
1128 phba->hb_outstanding = 1;
1129 } else if (time_before_eq(phba->last_completion_time,
1130 phba->skipped_hb)) {
1131 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1132 "2857 Last completion time not "
1133 " updated in %d ms\n",
1134 jiffies_to_msecs(jiffies
1135 - phba->last_completion_time));
1136 } else
1137 phba->skipped_hb = jiffies;
1138
858c9f6c 1139 mod_timer(&phba->hb_tmofunc,
13815c83 1140 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
858c9f6c 1141 return;
13815c83
JS		 1142 } else {
1143 /*
1144 * If heart beat timeout called with hb_outstanding set
dcf2a4e0
JS		 1145 * we need to give the hb mailbox cmd a chance to
1146 * complete or TMO.
13815c83 1147 */
dcf2a4e0
JS		 1148 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1149 "0459 Adapter heartbeat still out"
1150 "standing:last compl time was %d ms.\n",
1151 jiffies_to_msecs(jiffies
1152 - phba->last_completion_time));
1153 mod_timer(&phba->hb_tmofunc,
1154 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
858c9f6c 1155 }
858c9f6c
JS		 1156 }
1157}
1158
e59058c4 1159/**
3621a710 1160 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
e59058c4
JS		 1161 * @phba: pointer to lpfc hba data structure.
1162 *
1163 * This routine is called to bring the HBA offline when HBA hardware error
1164 * other than Port Error 6 has been detected.
1165 **/
09372820
JS		 1166static void
1167lpfc_offline_eratt(struct lpfc_hba *phba)
1168{
1169 struct lpfc_sli *psli = &phba->sli;
1170
1171 spin_lock_irq(&phba->hbalock);
f4b4c68f 1172 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
09372820 1173 spin_unlock_irq(&phba->hbalock);
618a5230 1174 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
09372820
JS		 1175
1176 lpfc_offline(phba);
1177 lpfc_reset_barrier(phba);
f4b4c68f 1178 spin_lock_irq(&phba->hbalock);
09372820 1179 lpfc_sli_brdreset(phba);
f4b4c68f 1180 spin_unlock_irq(&phba->hbalock);
09372820
JS		 1181 lpfc_hba_down_post(phba);
1182 lpfc_sli_brdready(phba, HS_MBRDY);
1183 lpfc_unblock_mgmt_io(phba);
1184 phba->link_state = LPFC_HBA_ERROR;
1185 return;
1186}
1187
da0436e9
JS		 1188/**
1189 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1190 * @phba: pointer to lpfc hba data structure.
1191 *
1192 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1193 * other than Port Error 6 has been detected.
1194 **/
1195static void
1196lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1197{
618a5230 1198 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
da0436e9
JS		 1199 lpfc_offline(phba);
1200 lpfc_sli4_brdreset(phba);
1201 lpfc_hba_down_post(phba);
1202 lpfc_sli4_post_status_check(phba);
1203 lpfc_unblock_mgmt_io(phba);
1204 phba->link_state = LPFC_HBA_ERROR;
1205}
1206
a257bf90
JS		 1207/**
1208 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1209 * @phba: pointer to lpfc hba data structure.
1210 *
1211 * This routine is invoked to handle the deferred HBA hardware error
1212 * conditions. This type of error is indicated by HBA by setting ER1
1213 * and another ER bit in the host status register. The driver will
1214 * wait until the ER1 bit clears before handling the error condition.
1215 **/
1216static void
1217lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1218{
1219 uint32_t old_host_status = phba->work_hs;
1220 struct lpfc_sli_ring *pring;
1221 struct lpfc_sli *psli = &phba->sli;
1222
f4b4c68f
JS		 1223 /* If the pci channel is offline, ignore possible errors,
1224 * since we cannot communicate with the pci card anyway.
1225 */
1226 if (pci_channel_offline(phba->pcidev)) {
1227 spin_lock_irq(&phba->hbalock);
1228 phba->hba_flag &= ~DEFER_ERATT;
1229 spin_unlock_irq(&phba->hbalock);
1230 return;
1231 }
1232
a257bf90
JS		 1233 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1234 "0479 Deferred Adapter Hardware Error "
1235 "Data: x%x x%x x%x\n",
1236 phba->work_hs,
1237 phba->work_status[0], phba->work_status[1]);
1238
1239 spin_lock_irq(&phba->hbalock);
f4b4c68f 1240 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
a257bf90
JS		 1241 spin_unlock_irq(&phba->hbalock);
1242
1243
1244 /*
1245 * Firmware stops when it triggred erratt. That could cause the I/Os
1246 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1247 * SCSI layer retry it after re-establishing link.
1248 */
1249 pring = &psli->ring[psli->fcp_ring];
1250 lpfc_sli_abort_iocb_ring(phba, pring);
1251
1252 /*
1253 * There was a firmware error. Take the hba offline and then
1254 * attempt to restart it.
1255 */
618a5230 1256 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
a257bf90
JS		 1257 lpfc_offline(phba);
1258
1259 /* Wait for the ER1 bit to clear.*/
1260 while (phba->work_hs & HS_FFER1) {
1261 msleep(100);
9940b97b
JS		 1262 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1263 phba->work_hs = UNPLUG_ERR ;
1264 break;
1265 }
a257bf90
JS		 1266 /* If driver is unloading let the worker thread continue */
1267 if (phba->pport->load_flag & FC_UNLOADING) {
1268 phba->work_hs = 0;
1269 break;
1270 }
1271 }
1272
1273 /*
1274 * This is to ptrotect against a race condition in which
1275 * first write to the host attention register clear the
1276 * host status register.
1277 */
1278 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1279 phba->work_hs = old_host_status & ~HS_FFER1;
1280
3772a991 1281 spin_lock_irq(&phba->hbalock);
a257bf90 1282 phba->hba_flag &= ~DEFER_ERATT;
3772a991 1283 spin_unlock_irq(&phba->hbalock);
a257bf90
JS		 1284 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1285 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1286}
1287
3772a991
JS		 1288static void
1289lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1290{
1291 struct lpfc_board_event_header board_event;
1292 struct Scsi_Host *shost;
1293
1294 board_event.event_type = FC_REG_BOARD_EVENT;
1295 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1296 shost = lpfc_shost_from_vport(phba->pport);
1297 fc_host_post_vendor_event(shost, fc_get_event_number(),
1298 sizeof(board_event),
1299 (char *) &board_event,
1300 LPFC_NL_VENDOR_ID);
1301}
1302
e59058c4 1303/**
3772a991 1304 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
e59058c4
JS		 1305 * @phba: pointer to lpfc hba data structure.
1306 *
1307 * This routine is invoked to handle the following HBA hardware error
1308 * conditions:
1309 * 1 - HBA error attention interrupt
1310 * 2 - DMA ring index out of range
1311 * 3 - Mailbox command came back as unknown
1312 **/
3772a991
JS		 1313static void
1314lpfc_handle_eratt_s3(struct lpfc_hba *phba)
dea3101e 1315{
2e0fef85 1316 struct lpfc_vport *vport = phba->pport;
2e0fef85 1317 struct lpfc_sli *psli = &phba->sli;
dea3101e 1318 struct lpfc_sli_ring *pring;
d2873e4c 1319 uint32_t event_data;
57127f15
JS		 1320 unsigned long temperature;
1321 struct temp_event temp_event_data;
92d7f7b0 1322 struct Scsi_Host *shost;
2e0fef85 1323
8d63f375 1324 /* If the pci channel is offline, ignore possible errors,
3772a991
JS		 1325 * since we cannot communicate with the pci card anyway.
1326 */
1327 if (pci_channel_offline(phba->pcidev)) {
1328 spin_lock_irq(&phba->hbalock);
1329 phba->hba_flag &= ~DEFER_ERATT;
1330 spin_unlock_irq(&phba->hbalock);
8d63f375 1331 return;
3772a991
JS		 1332 }
1333
13815c83
JS		 1334 /* If resets are disabled then leave the HBA alone and return */
1335 if (!phba->cfg_enable_hba_reset)
1336 return;
dea3101e 1337
ea2151b4 1338 /* Send an internal error event to mgmt application */
3772a991 1339 lpfc_board_errevt_to_mgmt(phba);
ea2151b4 1340
a257bf90
JS		 1341 if (phba->hba_flag & DEFER_ERATT)
1342 lpfc_handle_deferred_eratt(phba);
1343
dcf2a4e0
JS		 1344 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1345 if (phba->work_hs & HS_FFER6)
1346 /* Re-establishing Link */
1347 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1348 "1301 Re-establishing Link "
1349 "Data: x%x x%x x%x\n",
1350 phba->work_hs, phba->work_status[0],
1351 phba->work_status[1]);
1352 if (phba->work_hs & HS_FFER8)
1353 /* Device Zeroization */
1354 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1355 "2861 Host Authentication device "
1356 "zeroization Data:x%x x%x x%x\n",
1357 phba->work_hs, phba->work_status[0],
1358 phba->work_status[1]);
58da1ffb 1359
92d7f7b0 1360 spin_lock_irq(&phba->hbalock);
f4b4c68f 1361 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
92d7f7b0 1362 spin_unlock_irq(&phba->hbalock);
dea3101e 1363
1364 /*
1365 * Firmware stops when it triggled erratt with HS_FFER6.
1366 * That could cause the I/Os dropped by the firmware.
1367 * Error iocb (I/O) on txcmplq and let the SCSI layer
1368 * retry it after re-establishing link.
1369 */
1370 pring = &psli->ring[psli->fcp_ring];
1371 lpfc_sli_abort_iocb_ring(phba, pring);
1372
dea3101e 1373 /*
1374 * There was a firmware error. Take the hba offline and then
1375 * attempt to restart it.
1376 */
618a5230 1377 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
dea3101e 1378 lpfc_offline(phba);
41415862 1379 lpfc_sli_brdrestart(phba);
dea3101e 1380 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
46fa311e 1381 lpfc_unblock_mgmt_io(phba);
dea3101e 1382 return;
1383 }
46fa311e 1384 lpfc_unblock_mgmt_io(phba);
57127f15
JS		 1385 } else if (phba->work_hs & HS_CRIT_TEMP) {
1386 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1387 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1388 temp_event_data.event_code = LPFC_CRIT_TEMP;
1389 temp_event_data.data = (uint32_t)temperature;
1390
1391 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
d7c255b2 1392 "0406 Adapter maximum temperature exceeded "
57127f15
JS		 1393 "(%ld), taking this port offline "
1394 "Data: x%x x%x x%x\n",
1395 temperature, phba->work_hs,
1396 phba->work_status[0], phba->work_status[1]);
1397
1398 shost = lpfc_shost_from_vport(phba->pport);
1399 fc_host_post_vendor_event(shost, fc_get_event_number(),
1400 sizeof(temp_event_data),
1401 (char *) &temp_event_data,
1402 SCSI_NL_VID_TYPE_PCI
1403 | PCI_VENDOR_ID_EMULEX);
1404
7af67051 1405 spin_lock_irq(&phba->hbalock);
7af67051
JS		 1406 phba->over_temp_state = HBA_OVER_TEMP;
1407 spin_unlock_irq(&phba->hbalock);
09372820 1408 lpfc_offline_eratt(phba);
57127f15 1409
dea3101e 1410 } else {
1411 /* The if clause above forces this code path when the status
9399627f
JS		 1412 * failure is a value other than FFER6. Do not call the offline
1413 * twice. This is the adapter hardware error path.
dea3101e 1414 */
1415 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 1416 "0457 Adapter Hardware Error "
dea3101e 1417 "Data: x%x x%x x%x\n",
e8b62011 1418 phba->work_hs,
dea3101e 1419 phba->work_status[0], phba->work_status[1]);
1420
d2873e4c 1421 event_data = FC_REG_DUMP_EVENT;
92d7f7b0 1422 shost = lpfc_shost_from_vport(vport);
2e0fef85 1423 fc_host_post_vendor_event(shost, fc_get_event_number(),
d2873e4c
JS		 1424 sizeof(event_data), (char *) &event_data,
1425 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1426
09372820 1427 lpfc_offline_eratt(phba);
dea3101e 1428 }
9399627f 1429 return;
dea3101e 1430}
1431
618a5230
JS		 1432/**
1433 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1434 * @phba: pointer to lpfc hba data structure.
1435 * @mbx_action: flag for mailbox shutdown action.
1436 *
1437 * This routine is invoked to perform an SLI4 port PCI function reset in
1438 * response to port status register polling attention. It waits for port
1439 * status register (ERR, RDY, RN) bits before proceeding with function reset.
1440 * During this process, interrupt vectors are freed and later requested
1441 * for handling possible port resource change.
1442 **/
1443static int
1444lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action)
1445{
1446 int rc;
1447 uint32_t intr_mode;
1448
1449 /*
1450 * On error status condition, driver need to wait for port
1451 * ready before performing reset.
1452 */
1453 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1454 if (!rc) {
1455 /* need reset: attempt for port recovery */
1456 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1457 "2887 Reset Needed: Attempting Port "
1458 "Recovery...\n");
1459 lpfc_offline_prep(phba, mbx_action);
1460 lpfc_offline(phba);
1461 /* release interrupt for possible resource change */
1462 lpfc_sli4_disable_intr(phba);
1463 lpfc_sli_brdrestart(phba);
1464 /* request and enable interrupt */
1465 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1466 if (intr_mode == LPFC_INTR_ERROR) {
1467 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1468 "3175 Failed to enable interrupt\n");
1469 return -EIO;
1470 } else {
1471 phba->intr_mode = intr_mode;
1472 }
1473 rc = lpfc_online(phba);
1474 if (rc == 0)
1475 lpfc_unblock_mgmt_io(phba);
1476 }
1477 return rc;
1478}
1479
da0436e9
JS		 1480/**
1481 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1482 * @phba: pointer to lpfc hba data structure.
1483 *
1484 * This routine is invoked to handle the SLI4 HBA hardware error attention
1485 * conditions.
1486 **/
1487static void
1488lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1489{
1490 struct lpfc_vport *vport = phba->pport;
1491 uint32_t event_data;
1492 struct Scsi_Host *shost;
2fcee4bf 1493 uint32_t if_type;
2e90f4b5
JS		 1494 struct lpfc_register portstat_reg = {0};
1495 uint32_t reg_err1, reg_err2;
1496 uint32_t uerrlo_reg, uemasklo_reg;
1497 uint32_t pci_rd_rc1, pci_rd_rc2;
73d91e50 1498 int rc;
da0436e9
JS		 1499
1500 /* If the pci channel is offline, ignore possible errors, since
1501 * we cannot communicate with the pci card anyway.
1502 */
1503 if (pci_channel_offline(phba->pcidev))
1504 return;
1505 /* If resets are disabled then leave the HBA alone and return */
1506 if (!phba->cfg_enable_hba_reset)
1507 return;
1508
2fcee4bf
JS		 1509 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1510 switch (if_type) {
1511 case LPFC_SLI_INTF_IF_TYPE_0:
2e90f4b5
JS		 1512 pci_rd_rc1 = lpfc_readl(
1513 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1514 &uerrlo_reg);
1515 pci_rd_rc2 = lpfc_readl(
1516 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1517 &uemasklo_reg);
1518 /* consider PCI bus read error as pci_channel_offline */
1519 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1520 return;
2fcee4bf
JS		 1521 lpfc_sli4_offline_eratt(phba);
1522 break;
1523 case LPFC_SLI_INTF_IF_TYPE_2:
2e90f4b5
JS		 1524 pci_rd_rc1 = lpfc_readl(
1525 phba->sli4_hba.u.if_type2.STATUSregaddr,
1526 &portstat_reg.word0);
1527 /* consider PCI bus read error as pci_channel_offline */
6b5151fd
JS		 1528 if (pci_rd_rc1 == -EIO) {
1529 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1530 "3151 PCI bus read access failure: x%x\n",
1531 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
2e90f4b5 1532 return;
6b5151fd 1533 }
2e90f4b5
JS		 1534 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1535 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
2fcee4bf
JS		 1536 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1537 /* TODO: Register for Overtemp async events. */
1538 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1539 "2889 Port Overtemperature event, "
026abb87 1540 "taking port offline\n");
2fcee4bf
JS		 1541 spin_lock_irq(&phba->hbalock);
1542 phba->over_temp_state = HBA_OVER_TEMP;
1543 spin_unlock_irq(&phba->hbalock);
1544 lpfc_sli4_offline_eratt(phba);
2e90f4b5 1545 break;
2fcee4bf 1546 }
2e90f4b5
JS		 1547 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1548 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART)
1549 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1550 "3143 Port Down: Firmware Restarted\n");
1551 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1552 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1554 "3144 Port Down: Debug Dump\n");
1555 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1556 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1557 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1558 "3145 Port Down: Provisioning\n");
618a5230
JS		 1559
1560 /* Check port status register for function reset */
1561 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT);
1562 if (rc == 0) {
1563 /* don't report event on forced debug dump */
1564 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1565 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1566 return;
1567 else
1568 break;
2fcee4bf 1569 }
618a5230 1570 /* fall through for not able to recover */
6b5151fd
JS		 1571 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1572 "3152 Unrecoverable error, bring the port "
1573 "offline\n");
2fcee4bf
JS		 1574 lpfc_sli4_offline_eratt(phba);
1575 break;
1576 case LPFC_SLI_INTF_IF_TYPE_1:
1577 default:
1578 break;
1579 }
2e90f4b5
JS		 1580 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1581 "3123 Report dump event to upper layer\n");
1582 /* Send an internal error event to mgmt application */
1583 lpfc_board_errevt_to_mgmt(phba);
1584
1585 event_data = FC_REG_DUMP_EVENT;
1586 shost = lpfc_shost_from_vport(vport);
1587 fc_host_post_vendor_event(shost, fc_get_event_number(),
1588 sizeof(event_data), (char *) &event_data,
1589 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
da0436e9
JS		 1590}
1591
1592/**
1593 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1594 * @phba: pointer to lpfc HBA data structure.
1595 *
1596 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1597 * routine from the API jump table function pointer from the lpfc_hba struct.
1598 *
1599 * Return codes
af901ca1 1600 * 0 - success.
da0436e9
JS		 1601 * Any other value - error.
1602 **/
1603void
1604lpfc_handle_eratt(struct lpfc_hba *phba)
1605{
1606 (*phba->lpfc_handle_eratt)(phba);
1607}
1608
e59058c4 1609/**
3621a710 1610 * lpfc_handle_latt - The HBA link event handler
e59058c4
JS		 1611 * @phba: pointer to lpfc hba data structure.
1612 *
1613 * This routine is invoked from the worker thread to handle a HBA host
1614 * attention link event.
1615 **/
dea3101e 1616void
2e0fef85 1617lpfc_handle_latt(struct lpfc_hba *phba)
dea3101e 1618{
2e0fef85
JS		 1619 struct lpfc_vport *vport = phba->pport;
1620 struct lpfc_sli *psli = &phba->sli;
dea3101e 1621 LPFC_MBOXQ_t *pmb;
1622 volatile uint32_t control;
1623 struct lpfc_dmabuf *mp;
09372820 1624 int rc = 0;
dea3101e 1625
1626 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
09372820
JS		 1627 if (!pmb) {
1628 rc = 1;
dea3101e 1629 goto lpfc_handle_latt_err_exit;
09372820 1630 }
dea3101e 1631
1632 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
09372820
JS		 1633 if (!mp) {
1634 rc = 2;
dea3101e 1635 goto lpfc_handle_latt_free_pmb;
09372820 1636 }
dea3101e 1637
1638 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
09372820
JS		 1639 if (!mp->virt) {
1640 rc = 3;
dea3101e 1641 goto lpfc_handle_latt_free_mp;
09372820 1642 }
dea3101e 1643
6281bfe0 1644 /* Cleanup any outstanding ELS commands */
549e55cd 1645 lpfc_els_flush_all_cmd(phba);
dea3101e 1646
1647 psli->slistat.link_event++;
76a95d75
JS		 1648 lpfc_read_topology(phba, pmb, mp);
1649 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2e0fef85 1650 pmb->vport = vport;
0d2b6b83
JS		 1651 /* Block ELS IOCBs until we have processed this mbox command */
1652 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
0b727fea 1653 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
09372820
JS		 1654 if (rc == MBX_NOT_FINISHED) {
1655 rc = 4;
14691150 1656 goto lpfc_handle_latt_free_mbuf;
09372820 1657 }
dea3101e 1658
1659 /* Clear Link Attention in HA REG */
2e0fef85 1660 spin_lock_irq(&phba->hbalock);
dea3101e 1661 writel(HA_LATT, phba->HAregaddr);
1662 readl(phba->HAregaddr); /* flush */
2e0fef85 1663 spin_unlock_irq(&phba->hbalock);
dea3101e 1664
1665 return;
1666
14691150 1667lpfc_handle_latt_free_mbuf:
0d2b6b83 1668 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
14691150 1669 lpfc_mbuf_free(phba, mp->virt, mp->phys);
dea3101e 1670lpfc_handle_latt_free_mp:
1671 kfree(mp);
1672lpfc_handle_latt_free_pmb:
1dcb58e5 1673 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 1674lpfc_handle_latt_err_exit:
1675 /* Enable Link attention interrupts */
2e0fef85 1676 spin_lock_irq(&phba->hbalock);
dea3101e 1677 psli->sli_flag |= LPFC_PROCESS_LA;
1678 control = readl(phba->HCregaddr);
1679 control |= HC_LAINT_ENA;
1680 writel(control, phba->HCregaddr);
1681 readl(phba->HCregaddr); /* flush */
1682
1683 /* Clear Link Attention in HA REG */
1684 writel(HA_LATT, phba->HAregaddr);
1685 readl(phba->HAregaddr); /* flush */
2e0fef85 1686 spin_unlock_irq(&phba->hbalock);
dea3101e 1687 lpfc_linkdown(phba);
2e0fef85 1688 phba->link_state = LPFC_HBA_ERROR;
dea3101e 1689
09372820
JS		 1690 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1691 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
dea3101e 1692
1693 return;
1694}
1695
e59058c4 1696/**
3621a710 1697 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
e59058c4
JS		 1698 * @phba: pointer to lpfc hba data structure.
1699 * @vpd: pointer to the vital product data.
1700 * @len: length of the vital product data in bytes.
1701 *
1702 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1703 * an array of characters. In this routine, the ModelName, ProgramType, and
1704 * ModelDesc, etc. fields of the phba data structure will be populated.
1705 *
1706 * Return codes
1707 * 0 - pointer to the VPD passed in is NULL
1708 * 1 - success
1709 **/
3772a991 1710int
2e0fef85 1711lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
dea3101e 1712{
1713 uint8_t lenlo, lenhi;
07da60c1 1714 int Length;
dea3101e 1715 int i, j;
1716 int finished = 0;
1717 int index = 0;
1718
1719 if (!vpd)
1720 return 0;
1721
1722 /* Vital Product */
ed957684 1723 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011 1724 "0455 Vital Product Data: x%x x%x x%x x%x\n",
dea3101e 1725 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1726 (uint32_t) vpd[3]);
74b72a59 1727 while (!finished && (index < (len - 4))) {
dea3101e 1728 switch (vpd[index]) {
1729 case 0x82:
74b72a59 1730 case 0x91:
dea3101e 1731 index += 1;
1732 lenlo = vpd[index];
1733 index += 1;
1734 lenhi = vpd[index];
1735 index += 1;
1736 i = ((((unsigned short)lenhi) << 8) + lenlo);
1737 index += i;
1738 break;
1739 case 0x90:
1740 index += 1;
1741 lenlo = vpd[index];
1742 index += 1;
1743 lenhi = vpd[index];
1744 index += 1;
1745 Length = ((((unsigned short)lenhi) << 8) + lenlo);
74b72a59
JW		 1746 if (Length > len - index)
1747 Length = len - index;
dea3101e 1748 while (Length > 0) {
1749 /* Look for Serial Number */
1750 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1751 index += 2;
1752 i = vpd[index];
1753 index += 1;
1754 j = 0;
1755 Length -= (3+i);
1756 while(i--) {
1757 phba->SerialNumber[j++] = vpd[index++];
1758 if (j == 31)
1759 break;
1760 }
1761 phba->SerialNumber[j] = 0;
1762 continue;
1763 }
1764 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1765 phba->vpd_flag |= VPD_MODEL_DESC;
1766 index += 2;
1767 i = vpd[index];
1768 index += 1;
1769 j = 0;
1770 Length -= (3+i);
1771 while(i--) {
1772 phba->ModelDesc[j++] = vpd[index++];
1773 if (j == 255)
1774 break;
1775 }
1776 phba->ModelDesc[j] = 0;
1777 continue;
1778 }
1779 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1780 phba->vpd_flag |= VPD_MODEL_NAME;
1781 index += 2;
1782 i = vpd[index];
1783 index += 1;
1784 j = 0;
1785 Length -= (3+i);
1786 while(i--) {
1787 phba->ModelName[j++] = vpd[index++];
1788 if (j == 79)
1789 break;
1790 }
1791 phba->ModelName[j] = 0;
1792 continue;
1793 }
1794 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1795 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1796 index += 2;
1797 i = vpd[index];
1798 index += 1;
1799 j = 0;
1800 Length -= (3+i);
1801 while(i--) {
1802 phba->ProgramType[j++] = vpd[index++];
1803 if (j == 255)
1804 break;
1805 }
1806 phba->ProgramType[j] = 0;
1807 continue;
1808 }
1809 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1810 phba->vpd_flag |= VPD_PORT;
1811 index += 2;
1812 i = vpd[index];
1813 index += 1;
1814 j = 0;
1815 Length -= (3+i);
1816 while(i--) {
cd1c8301
JS		 1817 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1818 (phba->sli4_hba.pport_name_sta ==
1819 LPFC_SLI4_PPNAME_GET)) {
1820 j++;
1821 index++;
1822 } else
1823 phba->Port[j++] = vpd[index++];
1824 if (j == 19)
1825 break;
dea3101e 1826 }
cd1c8301
JS		 1827 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1828 (phba->sli4_hba.pport_name_sta ==
1829 LPFC_SLI4_PPNAME_NON))
1830 phba->Port[j] = 0;
dea3101e 1831 continue;
1832 }
1833 else {
1834 index += 2;
1835 i = vpd[index];
1836 index += 1;
1837 index += i;
1838 Length -= (3 + i);
1839 }
1840 }
1841 finished = 0;
1842 break;
1843 case 0x78:
1844 finished = 1;
1845 break;
1846 default:
1847 index ++;
1848 break;
1849 }
74b72a59 1850 }
dea3101e 1851
1852 return(1);
1853}
1854
e59058c4 1855/**
3621a710 1856 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
e59058c4
JS		 1857 * @phba: pointer to lpfc hba data structure.
1858 * @mdp: pointer to the data structure to hold the derived model name.
1859 * @descp: pointer to the data structure to hold the derived description.
1860 *
1861 * This routine retrieves HBA's description based on its registered PCI device
1862 * ID. The @descp passed into this function points to an array of 256 chars. It
1863 * shall be returned with the model name, maximum speed, and the host bus type.
1864 * The @mdp passed into this function points to an array of 80 chars. When the
1865 * function returns, the @mdp will be filled with the model name.
1866 **/
dea3101e 1867static void
2e0fef85 1868lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
dea3101e 1869{
1870 lpfc_vpd_t *vp;
fefcb2b6 1871 uint16_t dev_id = phba->pcidev->device;
74b72a59 1872 int max_speed;
84774a4d 1873 int GE = 0;
da0436e9 1874 int oneConnect = 0; /* default is not a oneConnect */
74b72a59 1875 struct {
a747c9ce
JS		 1876 char *name;
1877 char *bus;
1878 char *function;
1879 } m = {"<Unknown>", "", ""};
74b72a59
JW		 1880
1881 if (mdp && mdp[0] != '\0'
1882 && descp && descp[0] != '\0')
1883 return;
1884
c0c11512
JS		 1885 if (phba->lmt & LMT_16Gb)
1886 max_speed = 16;
1887 else if (phba->lmt & LMT_10Gb)
74b72a59
JW		 1888 max_speed = 10;
1889 else if (phba->lmt & LMT_8Gb)
1890 max_speed = 8;
1891 else if (phba->lmt & LMT_4Gb)
1892 max_speed = 4;
1893 else if (phba->lmt & LMT_2Gb)
1894 max_speed = 2;
4169d868 1895 else if (phba->lmt & LMT_1Gb)
74b72a59 1896 max_speed = 1;
4169d868
JS		 1897 else
1898 max_speed = 0;
dea3101e 1899
1900 vp = &phba->vpd;
dea3101e 1901
e4adb204 1902 switch (dev_id) {
06325e74 1903 case PCI_DEVICE_ID_FIREFLY:
a747c9ce 1904 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
06325e74 1905 break;
dea3101e 1906 case PCI_DEVICE_ID_SUPERFLY:
1907 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
a747c9ce
JS		 1908 m = (typeof(m)){"LP7000", "PCI",
1909 "Fibre Channel Adapter"};
dea3101e 1910 else
a747c9ce
JS		 1911 m = (typeof(m)){"LP7000E", "PCI",
1912 "Fibre Channel Adapter"};
dea3101e 1913 break;
1914 case PCI_DEVICE_ID_DRAGONFLY:
a747c9ce
JS		 1915 m = (typeof(m)){"LP8000", "PCI",
1916 "Fibre Channel Adapter"};
dea3101e 1917 break;
1918 case PCI_DEVICE_ID_CENTAUR:
1919 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
a747c9ce
JS		 1920 m = (typeof(m)){"LP9002", "PCI",
1921 "Fibre Channel Adapter"};
dea3101e 1922 else
a747c9ce
JS		 1923 m = (typeof(m)){"LP9000", "PCI",
1924 "Fibre Channel Adapter"};
dea3101e 1925 break;
1926 case PCI_DEVICE_ID_RFLY:
a747c9ce
JS		 1927 m = (typeof(m)){"LP952", "PCI",
1928 "Fibre Channel Adapter"};
dea3101e 1929 break;
1930 case PCI_DEVICE_ID_PEGASUS:
a747c9ce
JS		 1931 m = (typeof(m)){"LP9802", "PCI-X",
1932 "Fibre Channel Adapter"};
dea3101e 1933 break;
1934 case PCI_DEVICE_ID_THOR:
a747c9ce
JS		 1935 m = (typeof(m)){"LP10000", "PCI-X",
1936 "Fibre Channel Adapter"};
dea3101e 1937 break;
1938 case PCI_DEVICE_ID_VIPER:
a747c9ce
JS		 1939 m = (typeof(m)){"LPX1000", "PCI-X",
1940 "Fibre Channel Adapter"};
dea3101e 1941 break;
1942 case PCI_DEVICE_ID_PFLY:
a747c9ce
JS		 1943 m = (typeof(m)){"LP982", "PCI-X",
1944 "Fibre Channel Adapter"};
dea3101e 1945 break;
1946 case PCI_DEVICE_ID_TFLY:
a747c9ce
JS		 1947 m = (typeof(m)){"LP1050", "PCI-X",
1948 "Fibre Channel Adapter"};
dea3101e 1949 break;
1950 case PCI_DEVICE_ID_HELIOS:
a747c9ce
JS		 1951 m = (typeof(m)){"LP11000", "PCI-X2",
1952 "Fibre Channel Adapter"};
dea3101e 1953 break;
e4adb204 1954 case PCI_DEVICE_ID_HELIOS_SCSP:
a747c9ce
JS		 1955 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1956 "Fibre Channel Adapter"};
e4adb204
JSEC		 1957 break;
1958 case PCI_DEVICE_ID_HELIOS_DCSP:
a747c9ce
JS		 1959 m = (typeof(m)){"LP11002-SP", "PCI-X2",
1960 "Fibre Channel Adapter"};
e4adb204
JSEC		 1961 break;
1962 case PCI_DEVICE_ID_NEPTUNE:
a747c9ce 1963 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 1964 break;
1965 case PCI_DEVICE_ID_NEPTUNE_SCSP:
a747c9ce 1966 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 1967 break;
1968 case PCI_DEVICE_ID_NEPTUNE_DCSP:
a747c9ce 1969 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
e4adb204 1970 break;
dea3101e 1971 case PCI_DEVICE_ID_BMID:
a747c9ce 1972 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
dea3101e 1973 break;
1974 case PCI_DEVICE_ID_BSMB:
a747c9ce 1975 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
dea3101e 1976 break;
1977 case PCI_DEVICE_ID_ZEPHYR:
a747c9ce 1978 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
dea3101e 1979 break;
e4adb204 1980 case PCI_DEVICE_ID_ZEPHYR_SCSP:
a747c9ce 1981 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 1982 break;
1983 case PCI_DEVICE_ID_ZEPHYR_DCSP:
a747c9ce 1984 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
a257bf90 1985 GE = 1;
e4adb204 1986 break;
dea3101e 1987 case PCI_DEVICE_ID_ZMID:
a747c9ce 1988 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
dea3101e 1989 break;
1990 case PCI_DEVICE_ID_ZSMB:
a747c9ce 1991 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
dea3101e 1992 break;
1993 case PCI_DEVICE_ID_LP101:
a747c9ce 1994 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
dea3101e 1995 break;
1996 case PCI_DEVICE_ID_LP10000S:
a747c9ce 1997 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
06325e74 1998 break;
e4adb204 1999 case PCI_DEVICE_ID_LP11000S:
a747c9ce 2000 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
18a3b596 2001 break;
e4adb204 2002 case PCI_DEVICE_ID_LPE11000S:
a747c9ce 2003 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
5cc36b3c 2004 break;
b87eab38 2005 case PCI_DEVICE_ID_SAT:
a747c9ce 2006 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 2007 break;
2008 case PCI_DEVICE_ID_SAT_MID:
a747c9ce 2009 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 2010 break;
2011 case PCI_DEVICE_ID_SAT_SMB:
a747c9ce 2012 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 2013 break;
2014 case PCI_DEVICE_ID_SAT_DCSP:
a747c9ce 2015 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 2016 break;
2017 case PCI_DEVICE_ID_SAT_SCSP:
a747c9ce 2018 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 2019 break;
2020 case PCI_DEVICE_ID_SAT_S:
a747c9ce 2021 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
b87eab38 2022 break;
84774a4d 2023 case PCI_DEVICE_ID_HORNET:
a747c9ce 2024 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
84774a4d
JS		 2025 GE = 1;
2026 break;
2027 case PCI_DEVICE_ID_PROTEUS_VF:
a747c9ce
JS		 2028 m = (typeof(m)){"LPev12000", "PCIe IOV",
2029 "Fibre Channel Adapter"};
84774a4d
JS		 2030 break;
2031 case PCI_DEVICE_ID_PROTEUS_PF:
a747c9ce
JS		 2032 m = (typeof(m)){"LPev12000", "PCIe IOV",
2033 "Fibre Channel Adapter"};
84774a4d
JS		 2034 break;
2035 case PCI_DEVICE_ID_PROTEUS_S:
a747c9ce
JS		 2036 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2037 "Fibre Channel Adapter"};
84774a4d 2038 break;
da0436e9
JS		 2039 case PCI_DEVICE_ID_TIGERSHARK:
2040 oneConnect = 1;
a747c9ce 2041 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
da0436e9 2042 break;
a747c9ce 2043 case PCI_DEVICE_ID_TOMCAT:
6669f9bb 2044 oneConnect = 1;
a747c9ce
JS		 2045 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2046 break;
2047 case PCI_DEVICE_ID_FALCON:
2048 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2049 "EmulexSecure Fibre"};
6669f9bb 2050 break;
98fc5dd9
JS		 2051 case PCI_DEVICE_ID_BALIUS:
2052 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2053 "Fibre Channel Adapter"};
2054 break;
085c647c 2055 case PCI_DEVICE_ID_LANCER_FC:
c0c11512
JS		 2056 case PCI_DEVICE_ID_LANCER_FC_VF:
2057 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
085c647c
JS		 2058 break;
2059 case PCI_DEVICE_ID_LANCER_FCOE:
c0c11512 2060 case PCI_DEVICE_ID_LANCER_FCOE_VF:
085c647c 2061 oneConnect = 1;
079b5c91 2062 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
085c647c 2063 break;
f8cafd38
JS		 2064 case PCI_DEVICE_ID_SKYHAWK:
2065 case PCI_DEVICE_ID_SKYHAWK_VF:
2066 oneConnect = 1;
2067 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2068 break;
5cc36b3c 2069 default:
a747c9ce 2070 m = (typeof(m)){"Unknown", "", ""};
e4adb204 2071 break;
dea3101e 2072 }
74b72a59
JW		 2073
2074 if (mdp && mdp[0] == '\0')
2075 snprintf(mdp, 79,"%s", m.name);
c0c11512
JS		 2076 /*
2077 * oneConnect hba requires special processing, they are all initiators
da0436e9
JS		 2078 * and we put the port number on the end
2079 */
2080 if (descp && descp[0] == '\0') {
2081 if (oneConnect)
2082 snprintf(descp, 255,
4169d868 2083 "Emulex OneConnect %s, %s Initiator %s",
a747c9ce 2084 m.name, m.function,
da0436e9 2085 phba->Port);
4169d868
JS		 2086 else if (max_speed == 0)
2087 snprintf(descp, 255,
2088 "Emulex %s %s %s ",
2089 m.name, m.bus, m.function);
da0436e9
JS		 2090 else
2091 snprintf(descp, 255,
2092 "Emulex %s %d%s %s %s",
a747c9ce
JS		 2093 m.name, max_speed, (GE) ? "GE" : "Gb",
2094 m.bus, m.function);
da0436e9 2095 }
dea3101e 2096}
2097
e59058c4 2098/**
3621a710 2099 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
e59058c4
JS		 2100 * @phba: pointer to lpfc hba data structure.
2101 * @pring: pointer to a IOCB ring.
2102 * @cnt: the number of IOCBs to be posted to the IOCB ring.
2103 *
2104 * This routine posts a given number of IOCBs with the associated DMA buffer
2105 * descriptors specified by the cnt argument to the given IOCB ring.
2106 *
2107 * Return codes
2108 * The number of IOCBs NOT able to be posted to the IOCB ring.
2109 **/
dea3101e 2110int
495a714c 2111lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
dea3101e 2112{
2113 IOCB_t *icmd;
0bd4ca25 2114 struct lpfc_iocbq *iocb;
dea3101e 2115 struct lpfc_dmabuf *mp1, *mp2;
2116
2117 cnt += pring->missbufcnt;
2118
2119 /* While there are buffers to post */
2120 while (cnt > 0) {
2121 /* Allocate buffer for command iocb */
0bd4ca25 2122 iocb = lpfc_sli_get_iocbq(phba);
dea3101e 2123 if (iocb == NULL) {
2124 pring->missbufcnt = cnt;
2125 return cnt;
2126 }
dea3101e 2127 icmd = &iocb->iocb;
2128
2129 /* 2 buffers can be posted per command */
2130 /* Allocate buffer to post */
2131 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2132 if (mp1)
98c9ea5c
JS		 2133 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2134 if (!mp1 || !mp1->virt) {
c9475cb0 2135 kfree(mp1);
604a3e30 2136 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2137 pring->missbufcnt = cnt;
2138 return cnt;
2139 }
2140
2141 INIT_LIST_HEAD(&mp1->list);
2142 /* Allocate buffer to post */
2143 if (cnt > 1) {
2144 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2145 if (mp2)
2146 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2147 &mp2->phys);
98c9ea5c 2148 if (!mp2 || !mp2->virt) {
c9475cb0 2149 kfree(mp2);
dea3101e 2150 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2151 kfree(mp1);
604a3e30 2152 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2153 pring->missbufcnt = cnt;
2154 return cnt;
2155 }
2156
2157 INIT_LIST_HEAD(&mp2->list);
2158 } else {
2159 mp2 = NULL;
2160 }
2161
2162 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2163 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2164 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2165 icmd->ulpBdeCount = 1;
2166 cnt--;
2167 if (mp2) {
2168 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2169 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2170 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2171 cnt--;
2172 icmd->ulpBdeCount = 2;
2173 }
2174
2175 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2176 icmd->ulpLe = 1;
2177
3772a991
JS		 2178 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2179 IOCB_ERROR) {
dea3101e 2180 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2181 kfree(mp1);
2182 cnt++;
2183 if (mp2) {
2184 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2185 kfree(mp2);
2186 cnt++;
2187 }
604a3e30 2188 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2189 pring->missbufcnt = cnt;
dea3101e 2190 return cnt;
2191 }
dea3101e 2192 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
92d7f7b0 2193 if (mp2)
dea3101e 2194 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
dea3101e 2195 }
2196 pring->missbufcnt = 0;
2197 return 0;
2198}
2199
e59058c4 2200/**
3621a710 2201 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
e59058c4
JS		 2202 * @phba: pointer to lpfc hba data structure.
2203 *
2204 * This routine posts initial receive IOCB buffers to the ELS ring. The
2205 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2206 * set to 64 IOCBs.
2207 *
2208 * Return codes
2209 * 0 - success (currently always success)
2210 **/
dea3101e 2211static int
2e0fef85 2212lpfc_post_rcv_buf(struct lpfc_hba *phba)
dea3101e 2213{
2214 struct lpfc_sli *psli = &phba->sli;
2215
2216 /* Ring 0, ELS / CT buffers */
495a714c 2217 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
dea3101e 2218 /* Ring 2 - FCP no buffers needed */
2219
2220 return 0;
2221}
2222
2223#define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2224
e59058c4 2225/**
3621a710 2226 * lpfc_sha_init - Set up initial array of hash table entries
e59058c4
JS		 2227 * @HashResultPointer: pointer to an array as hash table.
2228 *
2229 * This routine sets up the initial values to the array of hash table entries
2230 * for the LC HBAs.
2231 **/
dea3101e 2232static void
2233lpfc_sha_init(uint32_t * HashResultPointer)
2234{
2235 HashResultPointer[0] = 0x67452301;
2236 HashResultPointer[1] = 0xEFCDAB89;
2237 HashResultPointer[2] = 0x98BADCFE;
2238 HashResultPointer[3] = 0x10325476;
2239 HashResultPointer[4] = 0xC3D2E1F0;
2240}
2241
e59058c4 2242/**
3621a710 2243 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
e59058c4
JS		 2244 * @HashResultPointer: pointer to an initial/result hash table.
2245 * @HashWorkingPointer: pointer to an working hash table.
2246 *
2247 * This routine iterates an initial hash table pointed by @HashResultPointer
2248 * with the values from the working hash table pointeed by @HashWorkingPointer.
2249 * The results are putting back to the initial hash table, returned through
2250 * the @HashResultPointer as the result hash table.
2251 **/
dea3101e 2252static void
2253lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2254{
2255 int t;
2256 uint32_t TEMP;
2257 uint32_t A, B, C, D, E;
2258 t = 16;
2259 do {
2260 HashWorkingPointer[t] =
2261 S(1,
2262 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2263 8] ^
2264 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2265 } while (++t <= 79);
2266 t = 0;
2267 A = HashResultPointer[0];
2268 B = HashResultPointer[1];
2269 C = HashResultPointer[2];
2270 D = HashResultPointer[3];
2271 E = HashResultPointer[4];
2272
2273 do {
2274 if (t < 20) {
2275 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2276 } else if (t < 40) {
2277 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2278 } else if (t < 60) {
2279 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2280 } else {
2281 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2282 }
2283 TEMP += S(5, A) + E + HashWorkingPointer[t];
2284 E = D;
2285 D = C;
2286 C = S(30, B);
2287 B = A;
2288 A = TEMP;
2289 } while (++t <= 79);
2290
2291 HashResultPointer[0] += A;
2292 HashResultPointer[1] += B;
2293 HashResultPointer[2] += C;
2294 HashResultPointer[3] += D;
2295 HashResultPointer[4] += E;
2296
2297}
2298
e59058c4 2299/**
3621a710 2300 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
e59058c4
JS		 2301 * @RandomChallenge: pointer to the entry of host challenge random number array.
2302 * @HashWorking: pointer to the entry of the working hash array.
2303 *
2304 * This routine calculates the working hash array referred by @HashWorking
2305 * from the challenge random numbers associated with the host, referred by
2306 * @RandomChallenge. The result is put into the entry of the working hash
2307 * array and returned by reference through @HashWorking.
2308 **/
dea3101e 2309static void
2310lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2311{
2312 *HashWorking = (*RandomChallenge ^ *HashWorking);
2313}
2314
e59058c4 2315/**
3621a710 2316 * lpfc_hba_init - Perform special handling for LC HBA initialization
e59058c4
JS		 2317 * @phba: pointer to lpfc hba data structure.
2318 * @hbainit: pointer to an array of unsigned 32-bit integers.
2319 *
2320 * This routine performs the special handling for LC HBA initialization.
2321 **/
dea3101e 2322void
2323lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2324{
2325 int t;
2326 uint32_t *HashWorking;
2e0fef85 2327 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
dea3101e 2328
bbfbbbc1 2329 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
dea3101e 2330 if (!HashWorking)
2331 return;
2332
dea3101e 2333 HashWorking[0] = HashWorking[78] = *pwwnn++;
2334 HashWorking[1] = HashWorking[79] = *pwwnn;
2335
2336 for (t = 0; t < 7; t++)
2337 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2338
2339 lpfc_sha_init(hbainit);
2340 lpfc_sha_iterate(hbainit, HashWorking);
2341 kfree(HashWorking);
2342}
2343
e59058c4 2344/**
3621a710 2345 * lpfc_cleanup - Performs vport cleanups before deleting a vport
e59058c4
JS		 2346 * @vport: pointer to a virtual N_Port data structure.
2347 *
2348 * This routine performs the necessary cleanups before deleting the @vport.
2349 * It invokes the discovery state machine to perform necessary state
2350 * transitions and to release the ndlps associated with the @vport. Note,
2351 * the physical port is treated as @vport 0.
2352 **/
87af33fe 2353void
2e0fef85 2354lpfc_cleanup(struct lpfc_vport *vport)
dea3101e 2355{
87af33fe 2356 struct lpfc_hba *phba = vport->phba;
dea3101e 2357 struct lpfc_nodelist *ndlp, *next_ndlp;
a8adb832 2358 int i = 0;
dea3101e 2359
87af33fe
JS		 2360 if (phba->link_state > LPFC_LINK_DOWN)
2361 lpfc_port_link_failure(vport);
2362
2363 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
e47c9093
JS		 2364 if (!NLP_CHK_NODE_ACT(ndlp)) {
2365 ndlp = lpfc_enable_node(vport, ndlp,
2366 NLP_STE_UNUSED_NODE);
2367 if (!ndlp)
2368 continue;
2369 spin_lock_irq(&phba->ndlp_lock);
2370 NLP_SET_FREE_REQ(ndlp);
2371 spin_unlock_irq(&phba->ndlp_lock);
2372 /* Trigger the release of the ndlp memory */
2373 lpfc_nlp_put(ndlp);
2374 continue;
2375 }
2376 spin_lock_irq(&phba->ndlp_lock);
2377 if (NLP_CHK_FREE_REQ(ndlp)) {
2378 /* The ndlp should not be in memory free mode already */
2379 spin_unlock_irq(&phba->ndlp_lock);
2380 continue;
2381 } else
2382 /* Indicate request for freeing ndlp memory */
2383 NLP_SET_FREE_REQ(ndlp);
2384 spin_unlock_irq(&phba->ndlp_lock);
2385
58da1ffb
JS		 2386 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2387 ndlp->nlp_DID == Fabric_DID) {
2388 /* Just free up ndlp with Fabric_DID for vports */
2389 lpfc_nlp_put(ndlp);
2390 continue;
2391 }
2392
eff4a01b
JS		 2393 /* take care of nodes in unused state before the state
2394 * machine taking action.
2395 */
2396 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2397 lpfc_nlp_put(ndlp);
2398 continue;
2399 }
2400
87af33fe
JS		 2401 if (ndlp->nlp_type & NLP_FABRIC)
2402 lpfc_disc_state_machine(vport, ndlp, NULL,
2403 NLP_EVT_DEVICE_RECOVERY);
e47c9093 2404
87af33fe
JS		 2405 lpfc_disc_state_machine(vport, ndlp, NULL,
2406 NLP_EVT_DEVICE_RM);
2407 }
2408
a8adb832
JS		 2409 /* At this point, ALL ndlp's should be gone
2410 * because of the previous NLP_EVT_DEVICE_RM.
2411 * Lets wait for this to happen, if needed.
2412 */
87af33fe 2413 while (!list_empty(&vport->fc_nodes)) {
a8adb832 2414 if (i++ > 3000) {
87af33fe 2415 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
a8adb832 2416 "0233 Nodelist not empty\n");
e47c9093
JS		 2417 list_for_each_entry_safe(ndlp, next_ndlp,
2418 &vport->fc_nodes, nlp_listp) {
2419 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2420 LOG_NODE,
d7c255b2 2421 "0282 did:x%x ndlp:x%p "
e47c9093
JS		 2422 "usgmap:x%x refcnt:%d\n",
2423 ndlp->nlp_DID, (void *)ndlp,
2424 ndlp->nlp_usg_map,
2425 atomic_read(
2426 &ndlp->kref.refcount));
2427 }
a8adb832 2428 break;
87af33fe 2429 }
a8adb832
JS		 2430
2431 /* Wait for any activity on ndlps to settle */
2432 msleep(10);
87af33fe 2433 }
1151e3ec 2434 lpfc_cleanup_vports_rrqs(vport, NULL);
dea3101e 2435}
2436
e59058c4 2437/**
3621a710 2438 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
e59058c4
JS		 2439 * @vport: pointer to a virtual N_Port data structure.
2440 *
2441 * This routine stops all the timers associated with a @vport. This function
2442 * is invoked before disabling or deleting a @vport. Note that the physical
2443 * port is treated as @vport 0.
2444 **/
92d7f7b0
JS		 2445void
2446lpfc_stop_vport_timers(struct lpfc_vport *vport)
dea3101e 2447{
92d7f7b0
JS		 2448 del_timer_sync(&vport->els_tmofunc);
2449 del_timer_sync(&vport->fc_fdmitmo);
92494144 2450 del_timer_sync(&vport->delayed_disc_tmo);
92d7f7b0
JS		 2451 lpfc_can_disctmo(vport);
2452 return;
dea3101e 2453}
2454
ecfd03c6
JS		 2455/**
2456 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2457 * @phba: pointer to lpfc hba data structure.
2458 *
2459 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2460 * caller of this routine should already hold the host lock.
2461 **/
2462void
2463__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2464{
5ac6b303
JS		 2465 /* Clear pending FCF rediscovery wait flag */
2466 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2467
ecfd03c6
JS		 2468 /* Now, try to stop the timer */
2469 del_timer(&phba->fcf.redisc_wait);
2470}
2471
2472/**
2473 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2474 * @phba: pointer to lpfc hba data structure.
2475 *
2476 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2477 * checks whether the FCF rediscovery wait timer is pending with the host
2478 * lock held before proceeding with disabling the timer and clearing the
2479 * wait timer pendig flag.
2480 **/
2481void
2482lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2483{
2484 spin_lock_irq(&phba->hbalock);
2485 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2486 /* FCF rediscovery timer already fired or stopped */
2487 spin_unlock_irq(&phba->hbalock);
2488 return;
2489 }
2490 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
5ac6b303
JS		 2491 /* Clear failover in progress flags */
2492 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
ecfd03c6
JS		 2493 spin_unlock_irq(&phba->hbalock);
2494}
2495
e59058c4 2496/**
3772a991 2497 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
e59058c4
JS		 2498 * @phba: pointer to lpfc hba data structure.
2499 *
2500 * This routine stops all the timers associated with a HBA. This function is
2501 * invoked before either putting a HBA offline or unloading the driver.
2502 **/
3772a991
JS		 2503void
2504lpfc_stop_hba_timers(struct lpfc_hba *phba)
dea3101e 2505{
51ef4c26 2506 lpfc_stop_vport_timers(phba->pport);
2e0fef85 2507 del_timer_sync(&phba->sli.mbox_tmo);
92d7f7b0 2508 del_timer_sync(&phba->fabric_block_timer);
9399627f 2509 del_timer_sync(&phba->eratt_poll);
3772a991 2510 del_timer_sync(&phba->hb_tmofunc);
1151e3ec
JS		 2511 if (phba->sli_rev == LPFC_SLI_REV4) {
2512 del_timer_sync(&phba->rrq_tmr);
2513 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2514 }
3772a991
JS		 2515 phba->hb_outstanding = 0;
2516
2517 switch (phba->pci_dev_grp) {
2518 case LPFC_PCI_DEV_LP:
2519 /* Stop any LightPulse device specific driver timers */
2520 del_timer_sync(&phba->fcp_poll_timer);
2521 break;
2522 case LPFC_PCI_DEV_OC:
2523 /* Stop any OneConnect device sepcific driver timers */
ecfd03c6 2524 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3772a991
JS		 2525 break;
2526 default:
2527 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2528 "0297 Invalid device group (x%x)\n",
2529 phba->pci_dev_grp);
2530 break;
2531 }
2e0fef85 2532 return;
dea3101e 2533}
2534
e59058c4 2535/**
3621a710 2536 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
e59058c4
JS		 2537 * @phba: pointer to lpfc hba data structure.
2538 *
2539 * This routine marks a HBA's management interface as blocked. Once the HBA's
2540 * management interface is marked as blocked, all the user space access to
2541 * the HBA, whether they are from sysfs interface or libdfc interface will
2542 * all be blocked. The HBA is set to block the management interface when the
2543 * driver prepares the HBA interface for online or offline.
2544 **/
a6ababd2 2545static void
618a5230 2546lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
a6ababd2
AB		 2547{
2548 unsigned long iflag;
6e7288d9
JS		 2549 uint8_t actcmd = MBX_HEARTBEAT;
2550 unsigned long timeout;
2551
a6ababd2
AB		 2552 spin_lock_irqsave(&phba->hbalock, iflag);
2553 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
618a5230
JS		 2554 spin_unlock_irqrestore(&phba->hbalock, iflag);
2555 if (mbx_action == LPFC_MBX_NO_WAIT)
2556 return;
2557 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2558 spin_lock_irqsave(&phba->hbalock, iflag);
a183a15f 2559 if (phba->sli.mbox_active) {
6e7288d9 2560 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
a183a15f
JS		 2561 /* Determine how long we might wait for the active mailbox
2562 * command to be gracefully completed by firmware.
2563 */
2564 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2565 phba->sli.mbox_active) * 1000) + jiffies;
2566 }
a6ababd2 2567 spin_unlock_irqrestore(&phba->hbalock, iflag);
a183a15f 2568
6e7288d9
JS		 2569 /* Wait for the outstnading mailbox command to complete */
2570 while (phba->sli.mbox_active) {
2571 /* Check active mailbox complete status every 2ms */
2572 msleep(2);
2573 if (time_after(jiffies, timeout)) {
2574 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2575 "2813 Mgmt IO is Blocked %x "
2576 "- mbox cmd %x still active\n",
2577 phba->sli.sli_flag, actcmd);
2578 break;
2579 }
2580 }
a6ababd2
AB		 2581}
2582
6b5151fd
JS		 2583/**
2584 * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2585 * @phba: pointer to lpfc hba data structure.
2586 *
2587 * Allocate RPIs for all active remote nodes. This is needed whenever
2588 * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2589 * is to fixup the temporary rpi assignments.
2590 **/
2591void
2592lpfc_sli4_node_prep(struct lpfc_hba *phba)
2593{
2594 struct lpfc_nodelist *ndlp, *next_ndlp;
2595 struct lpfc_vport **vports;
2596 int i;
2597
2598 if (phba->sli_rev != LPFC_SLI_REV4)
2599 return;
2600
2601 vports = lpfc_create_vport_work_array(phba);
2602 if (vports != NULL) {
2603 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2604 if (vports[i]->load_flag & FC_UNLOADING)
2605 continue;
2606
2607 list_for_each_entry_safe(ndlp, next_ndlp,
2608 &vports[i]->fc_nodes,
2609 nlp_listp) {
2610 if (NLP_CHK_NODE_ACT(ndlp))
2611 ndlp->nlp_rpi =
2612 lpfc_sli4_alloc_rpi(phba);
2613 }
2614 }
2615 }
2616 lpfc_destroy_vport_work_array(phba, vports);
2617}
2618
e59058c4 2619/**
3621a710 2620 * lpfc_online - Initialize and bring a HBA online
e59058c4
JS		 2621 * @phba: pointer to lpfc hba data structure.
2622 *
2623 * This routine initializes the HBA and brings a HBA online. During this
2624 * process, the management interface is blocked to prevent user space access
2625 * to the HBA interfering with the driver initialization.
2626 *
2627 * Return codes
2628 * 0 - successful
2629 * 1 - failed
2630 **/
dea3101e 2631int
2e0fef85 2632lpfc_online(struct lpfc_hba *phba)
dea3101e 2633{
372bd282 2634 struct lpfc_vport *vport;
549e55cd
JS		 2635 struct lpfc_vport **vports;
2636 int i;
2e0fef85 2637
dea3101e 2638 if (!phba)
2639 return 0;
372bd282 2640 vport = phba->pport;
dea3101e 2641
2e0fef85 2642 if (!(vport->fc_flag & FC_OFFLINE_MODE))
dea3101e 2643 return 0;
2644
ed957684 2645 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
e8b62011 2646 "0458 Bring Adapter online\n");
dea3101e 2647
618a5230 2648 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
46fa311e
JS		 2649
2650 if (!lpfc_sli_queue_setup(phba)) {
2651 lpfc_unblock_mgmt_io(phba);
dea3101e 2652 return 1;
46fa311e 2653 }
dea3101e 2654
da0436e9
JS		 2655 if (phba->sli_rev == LPFC_SLI_REV4) {
2656 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2657 lpfc_unblock_mgmt_io(phba);
2658 return 1;
2659 }
2660 } else {
2661 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2662 lpfc_unblock_mgmt_io(phba);
2663 return 1;
2664 }
46fa311e 2665 }
dea3101e 2666
549e55cd
JS		 2667 vports = lpfc_create_vport_work_array(phba);
2668 if (vports != NULL)
da0436e9 2669 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
549e55cd
JS		 2670 struct Scsi_Host *shost;
2671 shost = lpfc_shost_from_vport(vports[i]);
2672 spin_lock_irq(shost->host_lock);
2673 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2674 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2675 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
1c6834a7
JS		 2676 if (phba->sli_rev == LPFC_SLI_REV4)
2677 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
549e55cd
JS		 2678 spin_unlock_irq(shost->host_lock);
2679 }
09372820 2680 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 2681
46fa311e 2682 lpfc_unblock_mgmt_io(phba);
dea3101e 2683 return 0;
2684}
2685
e59058c4 2686/**
3621a710 2687 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
e59058c4
JS		 2688 * @phba: pointer to lpfc hba data structure.
2689 *
2690 * This routine marks a HBA's management interface as not blocked. Once the
2691 * HBA's management interface is marked as not blocked, all the user space
2692 * access to the HBA, whether they are from sysfs interface or libdfc
2693 * interface will be allowed. The HBA is set to block the management interface
2694 * when the driver prepares the HBA interface for online or offline and then
2695 * set to unblock the management interface afterwards.
2696 **/
46fa311e
JS		 2697void
2698lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2699{
2700 unsigned long iflag;
2701
2e0fef85
JS		 2702 spin_lock_irqsave(&phba->hbalock, iflag);
2703 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2704 spin_unlock_irqrestore(&phba->hbalock, iflag);
46fa311e
JS		 2705}
2706
e59058c4 2707/**
3621a710 2708 * lpfc_offline_prep - Prepare a HBA to be brought offline
e59058c4
JS		 2709 * @phba: pointer to lpfc hba data structure.
2710 *
2711 * This routine is invoked to prepare a HBA to be brought offline. It performs
2712 * unregistration login to all the nodes on all vports and flushes the mailbox
2713 * queue to make it ready to be brought offline.
2714 **/
46fa311e 2715void
618a5230 2716lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
46fa311e 2717{
2e0fef85 2718 struct lpfc_vport *vport = phba->pport;
46fa311e 2719 struct lpfc_nodelist *ndlp, *next_ndlp;
87af33fe 2720 struct lpfc_vport **vports;
72100cc4 2721 struct Scsi_Host *shost;
87af33fe 2722 int i;
dea3101e 2723
2e0fef85 2724 if (vport->fc_flag & FC_OFFLINE_MODE)
46fa311e 2725 return;
dea3101e 2726
618a5230 2727 lpfc_block_mgmt_io(phba, mbx_action);
dea3101e 2728
2729 lpfc_linkdown(phba);
2730
87af33fe
JS		 2731 /* Issue an unreg_login to all nodes on all vports */
2732 vports = lpfc_create_vport_work_array(phba);
2733 if (vports != NULL) {
da0436e9 2734 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
a8adb832
JS		 2735 if (vports[i]->load_flag & FC_UNLOADING)
2736 continue;
72100cc4
JS		 2737 shost = lpfc_shost_from_vport(vports[i]);
2738 spin_lock_irq(shost->host_lock);
c868595d 2739 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
695a814e
JS		 2740 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2741 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
72100cc4 2742 spin_unlock_irq(shost->host_lock);
695a814e 2743
87af33fe
JS		 2744 shost = lpfc_shost_from_vport(vports[i]);
2745 list_for_each_entry_safe(ndlp, next_ndlp,
2746 &vports[i]->fc_nodes,
2747 nlp_listp) {
e47c9093
JS		 2748 if (!NLP_CHK_NODE_ACT(ndlp))
2749 continue;
87af33fe
JS		 2750 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2751 continue;
2752 if (ndlp->nlp_type & NLP_FABRIC) {
2753 lpfc_disc_state_machine(vports[i], ndlp,
2754 NULL, NLP_EVT_DEVICE_RECOVERY);
2755 lpfc_disc_state_machine(vports[i], ndlp,
2756 NULL, NLP_EVT_DEVICE_RM);
2757 }
2758 spin_lock_irq(shost->host_lock);
2759 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
401ee0c1 2760 spin_unlock_irq(shost->host_lock);
6b5151fd
JS		 2761 /*
2762 * Whenever an SLI4 port goes offline, free the
401ee0c1
JS		 2763 * RPI. Get a new RPI when the adapter port
2764 * comes back online.
6b5151fd
JS		 2765 */
2766 if (phba->sli_rev == LPFC_SLI_REV4)
2767 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
87af33fe
JS		 2768 lpfc_unreg_rpi(vports[i], ndlp);
2769 }
2770 }
2771 }
09372820 2772 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 2773
618a5230 2774 lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
46fa311e
JS		 2775}
2776
e59058c4 2777/**
3621a710 2778 * lpfc_offline - Bring a HBA offline
e59058c4
JS		 2779 * @phba: pointer to lpfc hba data structure.
2780 *
2781 * This routine actually brings a HBA offline. It stops all the timers
2782 * associated with the HBA, brings down the SLI layer, and eventually
2783 * marks the HBA as in offline state for the upper layer protocol.
2784 **/
46fa311e 2785void
2e0fef85 2786lpfc_offline(struct lpfc_hba *phba)
46fa311e 2787{
549e55cd
JS		 2788 struct Scsi_Host *shost;
2789 struct lpfc_vport **vports;
2790 int i;
46fa311e 2791
549e55cd 2792 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
46fa311e 2793 return;
688a8863 2794
da0436e9
JS		 2795 /* stop port and all timers associated with this hba */
2796 lpfc_stop_port(phba);
51ef4c26
JS		 2797 vports = lpfc_create_vport_work_array(phba);
2798 if (vports != NULL)
da0436e9 2799 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
51ef4c26 2800 lpfc_stop_vport_timers(vports[i]);
09372820 2801 lpfc_destroy_vport_work_array(phba, vports);
92d7f7b0 2802 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
e8b62011 2803 "0460 Bring Adapter offline\n");
dea3101e 2804 /* Bring down the SLI Layer and cleanup. The HBA is offline
2805 now. */
2806 lpfc_sli_hba_down(phba);
92d7f7b0 2807 spin_lock_irq(&phba->hbalock);
7054a606 2808 phba->work_ha = 0;
92d7f7b0 2809 spin_unlock_irq(&phba->hbalock);
549e55cd
JS		 2810 vports = lpfc_create_vport_work_array(phba);
2811 if (vports != NULL)
da0436e9 2812 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
549e55cd 2813 shost = lpfc_shost_from_vport(vports[i]);
549e55cd
JS		 2814 spin_lock_irq(shost->host_lock);
2815 vports[i]->work_port_events = 0;
2816 vports[i]->fc_flag |= FC_OFFLINE_MODE;
2817 spin_unlock_irq(shost->host_lock);
2818 }
09372820 2819 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 2820}
2821
e59058c4 2822/**
3621a710 2823 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
e59058c4
JS		 2824 * @phba: pointer to lpfc hba data structure.
2825 *
2826 * This routine is to free all the SCSI buffers and IOCBs from the driver
2827 * list back to kernel. It is called from lpfc_pci_remove_one to free
2828 * the internal resources before the device is removed from the system.
e59058c4 2829 **/
8a9d2e80 2830static void
2e0fef85 2831lpfc_scsi_free(struct lpfc_hba *phba)
dea3101e 2832{
2833 struct lpfc_scsi_buf *sb, *sb_next;
2834 struct lpfc_iocbq *io, *io_next;
2835
2e0fef85 2836 spin_lock_irq(&phba->hbalock);
dea3101e 2837 /* Release all the lpfc_scsi_bufs maintained by this host. */
1c6f4ef5 2838 spin_lock(&phba->scsi_buf_list_lock);
dea3101e 2839 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2840 list_del(&sb->list);
2841 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
92d7f7b0 2842 sb->dma_handle);
dea3101e 2843 kfree(sb);
2844 phba->total_scsi_bufs--;
2845 }
1c6f4ef5 2846 spin_unlock(&phba->scsi_buf_list_lock);
dea3101e 2847
2848 /* Release all the lpfc_iocbq entries maintained by this host. */
2849 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2850 list_del(&io->list);
2851 kfree(io);
2852 phba->total_iocbq_bufs--;
2853 }
6d368e53 2854
2e0fef85 2855 spin_unlock_irq(&phba->hbalock);
8a9d2e80
JS		 2856}
2857
2858/**
2859 * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
2860 * @phba: pointer to lpfc hba data structure.
2861 *
2862 * This routine first calculates the sizes of the current els and allocated
2863 * scsi sgl lists, and then goes through all sgls to updates the physical
2864 * XRIs assigned due to port function reset. During port initialization, the
2865 * current els and allocated scsi sgl lists are 0s.
2866 *
2867 * Return codes
2868 * 0 - successful (for now, it always returns 0)
2869 **/
2870int
2871lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
2872{
2873 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
2874 struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
2875 uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
2876 LIST_HEAD(els_sgl_list);
2877 LIST_HEAD(scsi_sgl_list);
2878 int rc;
2879
2880 /*
2881 * update on pci function's els xri-sgl list
2882 */
2883 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
2884 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
2885 /* els xri-sgl expanded */
2886 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
2887 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2888 "3157 ELS xri-sgl count increased from "
2889 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2890 els_xri_cnt);
2891 /* allocate the additional els sgls */
2892 for (i = 0; i < xri_cnt; i++) {
2893 sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
2894 GFP_KERNEL);
2895 if (sglq_entry == NULL) {
2896 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2897 "2562 Failure to allocate an "
2898 "ELS sgl entry:%d\n", i);
2899 rc = -ENOMEM;
2900 goto out_free_mem;
2901 }
2902 sglq_entry->buff_type = GEN_BUFF_TYPE;
2903 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
2904 &sglq_entry->phys);
2905 if (sglq_entry->virt == NULL) {
2906 kfree(sglq_entry);
2907 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2908 "2563 Failure to allocate an "
2909 "ELS mbuf:%d\n", i);
2910 rc = -ENOMEM;
2911 goto out_free_mem;
2912 }
2913 sglq_entry->sgl = sglq_entry->virt;
2914 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
2915 sglq_entry->state = SGL_FREED;
2916 list_add_tail(&sglq_entry->list, &els_sgl_list);
2917 }
2918 spin_lock(&phba->hbalock);
2919 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
2920 spin_unlock(&phba->hbalock);
2921 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
2922 /* els xri-sgl shrinked */
2923 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
2924 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2925 "3158 ELS xri-sgl count decreased from "
2926 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2927 els_xri_cnt);
2928 spin_lock_irq(&phba->hbalock);
2929 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
2930 spin_unlock_irq(&phba->hbalock);
2931 /* release extra els sgls from list */
2932 for (i = 0; i < xri_cnt; i++) {
2933 list_remove_head(&els_sgl_list,
2934 sglq_entry, struct lpfc_sglq, list);
2935 if (sglq_entry) {
2936 lpfc_mbuf_free(phba, sglq_entry->virt,
2937 sglq_entry->phys);
2938 kfree(sglq_entry);
2939 }
2940 }
2941 spin_lock_irq(&phba->hbalock);
2942 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
2943 spin_unlock_irq(&phba->hbalock);
2944 } else
2945 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2946 "3163 ELS xri-sgl count unchanged: %d\n",
2947 els_xri_cnt);
2948 phba->sli4_hba.els_xri_cnt = els_xri_cnt;
2949
2950 /* update xris to els sgls on the list */
2951 sglq_entry = NULL;
2952 sglq_entry_next = NULL;
2953 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
2954 &phba->sli4_hba.lpfc_sgl_list, list) {
2955 lxri = lpfc_sli4_next_xritag(phba);
2956 if (lxri == NO_XRI) {
2957 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2958 "2400 Failed to allocate xri for "
2959 "ELS sgl\n");
2960 rc = -ENOMEM;
2961 goto out_free_mem;
2962 }
2963 sglq_entry->sli4_lxritag = lxri;
2964 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
2965 }
2966
2967 /*
2968 * update on pci function's allocated scsi xri-sgl list
2969 */
2970 phba->total_scsi_bufs = 0;
2971
2972 /* maximum number of xris available for scsi buffers */
2973 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
2974 els_xri_cnt;
2975
2976 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2977 "2401 Current allocated SCSI xri-sgl count:%d, "
2978 "maximum SCSI xri count:%d\n",
2979 phba->sli4_hba.scsi_xri_cnt,
2980 phba->sli4_hba.scsi_xri_max);
2981
2982 spin_lock_irq(&phba->scsi_buf_list_lock);
2983 list_splice_init(&phba->lpfc_scsi_buf_list, &scsi_sgl_list);
2984 spin_unlock_irq(&phba->scsi_buf_list_lock);
2985
2986 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
2987 /* max scsi xri shrinked below the allocated scsi buffers */
2988 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
2989 phba->sli4_hba.scsi_xri_max;
2990 /* release the extra allocated scsi buffers */
2991 for (i = 0; i < scsi_xri_cnt; i++) {
2992 list_remove_head(&scsi_sgl_list, psb,
2993 struct lpfc_scsi_buf, list);
2994 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, psb->data,
2995 psb->dma_handle);
2996 kfree(psb);
2997 }
2998 spin_lock_irq(&phba->scsi_buf_list_lock);
2999 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3000 spin_unlock_irq(&phba->scsi_buf_list_lock);
3001 }
3002
3003 /* update xris associated to remaining allocated scsi buffers */
3004 psb = NULL;
3005 psb_next = NULL;
3006 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3007 lxri = lpfc_sli4_next_xritag(phba);
3008 if (lxri == NO_XRI) {
3009 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3010 "2560 Failed to allocate xri for "
3011 "scsi buffer\n");
3012 rc = -ENOMEM;
3013 goto out_free_mem;
3014 }
3015 psb->cur_iocbq.sli4_lxritag = lxri;
3016 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3017 }
3018 spin_lock(&phba->scsi_buf_list_lock);
3019 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list);
3020 spin_unlock(&phba->scsi_buf_list_lock);
3021
dea3101e 3022 return 0;
8a9d2e80
JS		 3023
3024out_free_mem:
3025 lpfc_free_els_sgl_list(phba);
3026 lpfc_scsi_free(phba);
3027 return rc;
dea3101e 3028}
3029
e59058c4 3030/**
3621a710 3031 * lpfc_create_port - Create an FC port
e59058c4
JS		 3032 * @phba: pointer to lpfc hba data structure.
3033 * @instance: a unique integer ID to this FC port.
3034 * @dev: pointer to the device data structure.
3035 *
3036 * This routine creates a FC port for the upper layer protocol. The FC port
3037 * can be created on top of either a physical port or a virtual port provided
3038 * by the HBA. This routine also allocates a SCSI host data structure (shost)
3039 * and associates the FC port created before adding the shost into the SCSI
3040 * layer.
3041 *
3042 * Return codes
3043 * @vport - pointer to the virtual N_Port data structure.
3044 * NULL - port create failed.
3045 **/
2e0fef85 3046struct lpfc_vport *
3de2a653 3047lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
47a8617c 3048{
2e0fef85
JS		 3049 struct lpfc_vport *vport;
3050 struct Scsi_Host *shost;
3051 int error = 0;
47a8617c 3052
3de2a653
JS		 3053 if (dev != &phba->pcidev->dev)
3054 shost = scsi_host_alloc(&lpfc_vport_template,
3055 sizeof(struct lpfc_vport));
3056 else
3057 shost = scsi_host_alloc(&lpfc_template,
3058 sizeof(struct lpfc_vport));
2e0fef85
JS		 3059 if (!shost)
3060 goto out;
47a8617c 3061
2e0fef85
JS		 3062 vport = (struct lpfc_vport *) shost->hostdata;
3063 vport->phba = phba;
2e0fef85 3064 vport->load_flag |= FC_LOADING;
92d7f7b0 3065 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
7f5f3d0d 3066 vport->fc_rscn_flush = 0;
47a8617c 3067
3de2a653 3068 lpfc_get_vport_cfgparam(vport);
2e0fef85
JS		 3069 shost->unique_id = instance;
3070 shost->max_id = LPFC_MAX_TARGET;
3de2a653 3071 shost->max_lun = vport->cfg_max_luns;
2e0fef85
JS		 3072 shost->this_id = -1;
3073 shost->max_cmd_len = 16;
da0436e9 3074 if (phba->sli_rev == LPFC_SLI_REV4) {
28baac74 3075 shost->dma_boundary =
cb5172ea 3076 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
da0436e9
JS		 3077 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3078 }
81301a9b 3079
47a8617c 3080 /*
2e0fef85
JS		 3081 * Set initial can_queue value since 0 is no longer supported and
3082 * scsi_add_host will fail. This will be adjusted later based on the
3083 * max xri value determined in hba setup.
47a8617c 3084 */
2e0fef85 3085 shost->can_queue = phba->cfg_hba_queue_depth - 10;
3de2a653 3086 if (dev != &phba->pcidev->dev) {
92d7f7b0
JS		 3087 shost->transportt = lpfc_vport_transport_template;
3088 vport->port_type = LPFC_NPIV_PORT;
3089 } else {
3090 shost->transportt = lpfc_transport_template;
3091 vport->port_type = LPFC_PHYSICAL_PORT;
3092 }
47a8617c 3093
2e0fef85
JS		 3094 /* Initialize all internally managed lists. */
3095 INIT_LIST_HEAD(&vport->fc_nodes);
da0436e9 3096 INIT_LIST_HEAD(&vport->rcv_buffer_list);
2e0fef85 3097 spin_lock_init(&vport->work_port_lock);
47a8617c 3098
2e0fef85
JS		 3099 init_timer(&vport->fc_disctmo);
3100 vport->fc_disctmo.function = lpfc_disc_timeout;
92d7f7b0 3101 vport->fc_disctmo.data = (unsigned long)vport;
47a8617c 3102
2e0fef85
JS		 3103 init_timer(&vport->fc_fdmitmo);
3104 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
92d7f7b0 3105 vport->fc_fdmitmo.data = (unsigned long)vport;
47a8617c 3106
2e0fef85
JS		 3107 init_timer(&vport->els_tmofunc);
3108 vport->els_tmofunc.function = lpfc_els_timeout;
92d7f7b0 3109 vport->els_tmofunc.data = (unsigned long)vport;
92494144
JS		 3110
3111 init_timer(&vport->delayed_disc_tmo);
3112 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3113 vport->delayed_disc_tmo.data = (unsigned long)vport;
3114
d139b9bd 3115 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2e0fef85
JS		 3116 if (error)
3117 goto out_put_shost;
47a8617c 3118
549e55cd 3119 spin_lock_irq(&phba->hbalock);
2e0fef85 3120 list_add_tail(&vport->listentry, &phba->port_list);
549e55cd 3121 spin_unlock_irq(&phba->hbalock);
2e0fef85 3122 return vport;
47a8617c 3123
2e0fef85
JS		 3124out_put_shost:
3125 scsi_host_put(shost);
3126out:
3127 return NULL;
47a8617c
JS		 3128}
3129
e59058c4 3130/**
3621a710 3131 * destroy_port - destroy an FC port
e59058c4
JS		 3132 * @vport: pointer to an lpfc virtual N_Port data structure.
3133 *
3134 * This routine destroys a FC port from the upper layer protocol. All the
3135 * resources associated with the port are released.
3136 **/
2e0fef85
JS		 3137void
3138destroy_port(struct lpfc_vport *vport)
47a8617c 3139{
92d7f7b0
JS		 3140 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3141 struct lpfc_hba *phba = vport->phba;
47a8617c 3142
858c9f6c 3143 lpfc_debugfs_terminate(vport);
92d7f7b0
JS		 3144 fc_remove_host(shost);
3145 scsi_remove_host(shost);
47a8617c 3146
92d7f7b0
JS		 3147 spin_lock_irq(&phba->hbalock);
3148 list_del_init(&vport->listentry);
3149 spin_unlock_irq(&phba->hbalock);
47a8617c 3150
92d7f7b0 3151 lpfc_cleanup(vport);
47a8617c 3152 return;
47a8617c
JS		 3153}
3154
e59058c4 3155/**
3621a710 3156 * lpfc_get_instance - Get a unique integer ID
e59058c4
JS		 3157 *
3158 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3159 * uses the kernel idr facility to perform the task.
3160 *
3161 * Return codes:
3162 * instance - a unique integer ID allocated as the new instance.
3163 * -1 - lpfc get instance failed.
3164 **/
92d7f7b0
JS		 3165int
3166lpfc_get_instance(void)
3167{
3168 int instance = 0;
47a8617c 3169
92d7f7b0
JS		 3170 /* Assign an unused number */
3171 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
3172 return -1;
3173 if (idr_get_new(&lpfc_hba_index, NULL, &instance))
3174 return -1;
3175 return instance;
47a8617c
JS		 3176}
3177
e59058c4 3178/**
3621a710 3179 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
e59058c4
JS		 3180 * @shost: pointer to SCSI host data structure.
3181 * @time: elapsed time of the scan in jiffies.
3182 *
3183 * This routine is called by the SCSI layer with a SCSI host to determine
3184 * whether the scan host is finished.
3185 *
3186 * Note: there is no scan_start function as adapter initialization will have
3187 * asynchronously kicked off the link initialization.
3188 *
3189 * Return codes
3190 * 0 - SCSI host scan is not over yet.
3191 * 1 - SCSI host scan is over.
3192 **/
47a8617c
JS		 3193int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3194{
2e0fef85
JS		 3195 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3196 struct lpfc_hba *phba = vport->phba;
858c9f6c 3197 int stat = 0;
47a8617c 3198
858c9f6c
JS		 3199 spin_lock_irq(shost->host_lock);
3200
51ef4c26 3201 if (vport->load_flag & FC_UNLOADING) {
858c9f6c
JS		 3202 stat = 1;
3203 goto finished;
3204 }
2e0fef85
JS		 3205 if (time >= 30 * HZ) {
3206 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011
JS		 3207 "0461 Scanning longer than 30 "
3208 "seconds. Continuing initialization\n");
858c9f6c 3209 stat = 1;
47a8617c 3210 goto finished;
2e0fef85
JS		 3211 }
3212 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
3213 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011
JS		 3214 "0465 Link down longer than 15 "
3215 "seconds. Continuing initialization\n");
858c9f6c 3216 stat = 1;
47a8617c 3217 goto finished;
2e0fef85 3218 }
47a8617c 3219
2e0fef85 3220 if (vport->port_state != LPFC_VPORT_READY)
858c9f6c 3221 goto finished;
2e0fef85 3222 if (vport->num_disc_nodes || vport->fc_prli_sent)
858c9f6c 3223 goto finished;
2e0fef85 3224 if (vport->fc_map_cnt == 0 && time < 2 * HZ)
858c9f6c 3225 goto finished;
2e0fef85 3226 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
858c9f6c
JS		 3227 goto finished;
3228
3229 stat = 1;
47a8617c
JS		 3230
3231finished:
858c9f6c
JS		 3232 spin_unlock_irq(shost->host_lock);
3233 return stat;
92d7f7b0 3234}
47a8617c 3235
e59058c4 3236/**
3621a710 3237 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
e59058c4
JS		 3238 * @shost: pointer to SCSI host data structure.
3239 *
3240 * This routine initializes a given SCSI host attributes on a FC port. The
3241 * SCSI host can be either on top of a physical port or a virtual port.
3242 **/
92d7f7b0
JS		 3243void lpfc_host_attrib_init(struct Scsi_Host *shost)
3244{
3245 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3246 struct lpfc_hba *phba = vport->phba;
47a8617c 3247 /*
2e0fef85 3248 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
47a8617c
JS		 3249 */
3250
2e0fef85
JS		 3251 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3252 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
47a8617c
JS		 3253 fc_host_supported_classes(shost) = FC_COS_CLASS3;
3254
3255 memset(fc_host_supported_fc4s(shost), 0,
2e0fef85 3256 sizeof(fc_host_supported_fc4s(shost)));
47a8617c
JS		 3257 fc_host_supported_fc4s(shost)[2] = 1;
3258 fc_host_supported_fc4s(shost)[7] = 1;
3259
92d7f7b0
JS		 3260 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3261 sizeof fc_host_symbolic_name(shost));
47a8617c
JS		 3262
3263 fc_host_supported_speeds(shost) = 0;
88a2cfbb
JS		 3264 if (phba->lmt & LMT_16Gb)
3265 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
47a8617c
JS		 3266 if (phba->lmt & LMT_10Gb)
3267 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
a8adb832
JS		 3268 if (phba->lmt & LMT_8Gb)
3269 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
47a8617c
JS		 3270 if (phba->lmt & LMT_4Gb)
3271 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3272 if (phba->lmt & LMT_2Gb)
3273 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3274 if (phba->lmt & LMT_1Gb)
3275 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3276
3277 fc_host_maxframe_size(shost) =
2e0fef85
JS		 3278 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3279 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
47a8617c 3280
0af5d708
MC		 3281 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3282
47a8617c
JS		 3283 /* This value is also unchanging */
3284 memset(fc_host_active_fc4s(shost), 0,
2e0fef85 3285 sizeof(fc_host_active_fc4s(shost)));
47a8617c
JS		 3286 fc_host_active_fc4s(shost)[2] = 1;
3287 fc_host_active_fc4s(shost)[7] = 1;
3288
92d7f7b0 3289 fc_host_max_npiv_vports(shost) = phba->max_vpi;
47a8617c 3290 spin_lock_irq(shost->host_lock);
51ef4c26 3291 vport->load_flag &= ~FC_LOADING;
47a8617c 3292 spin_unlock_irq(shost->host_lock);
47a8617c 3293}
dea3101e 3294
e59058c4 3295/**
da0436e9 3296 * lpfc_stop_port_s3 - Stop SLI3 device port
e59058c4
JS		 3297 * @phba: pointer to lpfc hba data structure.
3298 *
da0436e9
JS		 3299 * This routine is invoked to stop an SLI3 device port, it stops the device
3300 * from generating interrupts and stops the device driver's timers for the
3301 * device.
e59058c4 3302 **/
da0436e9
JS		 3303static void
3304lpfc_stop_port_s3(struct lpfc_hba *phba)
db2378e0 3305{
da0436e9
JS		 3306 /* Clear all interrupt enable conditions */
3307 writel(0, phba->HCregaddr);
3308 readl(phba->HCregaddr); /* flush */
3309 /* Clear all pending interrupts */
3310 writel(0xffffffff, phba->HAregaddr);
3311 readl(phba->HAregaddr); /* flush */
db2378e0 3312
da0436e9
JS		 3313 /* Reset some HBA SLI setup states */
3314 lpfc_stop_hba_timers(phba);
3315 phba->pport->work_port_events = 0;
3316}
db2378e0 3317
da0436e9
JS		 3318/**
3319 * lpfc_stop_port_s4 - Stop SLI4 device port
3320 * @phba: pointer to lpfc hba data structure.
3321 *
3322 * This routine is invoked to stop an SLI4 device port, it stops the device
3323 * from generating interrupts and stops the device driver's timers for the
3324 * device.
3325 **/
3326static void
3327lpfc_stop_port_s4(struct lpfc_hba *phba)
3328{
3329 /* Reset some HBA SLI4 setup states */
3330 lpfc_stop_hba_timers(phba);
3331 phba->pport->work_port_events = 0;
3332 phba->sli4_hba.intr_enable = 0;
da0436e9 3333}
9399627f 3334
da0436e9
JS		 3335/**
3336 * lpfc_stop_port - Wrapper function for stopping hba port
3337 * @phba: Pointer to HBA context object.
3338 *
3339 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3340 * the API jump table function pointer from the lpfc_hba struct.
3341 **/
3342void
3343lpfc_stop_port(struct lpfc_hba *phba)
3344{
3345 phba->lpfc_stop_port(phba);
3346}
db2378e0 3347
ecfd03c6
JS		 3348/**
3349 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3350 * @phba: Pointer to hba for which this call is being executed.
3351 *
3352 * This routine starts the timer waiting for the FCF rediscovery to complete.
3353 **/
3354void
3355lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3356{
3357 unsigned long fcf_redisc_wait_tmo =
3358 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3359 /* Start fcf rediscovery wait period timer */
3360 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3361 spin_lock_irq(&phba->hbalock);
3362 /* Allow action to new fcf asynchronous event */
3363 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3364 /* Mark the FCF rediscovery pending state */
3365 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3366 spin_unlock_irq(&phba->hbalock);
3367}
3368
3369/**
3370 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3371 * @ptr: Map to lpfc_hba data structure pointer.
3372 *
3373 * This routine is invoked when waiting for FCF table rediscover has been
3374 * timed out. If new FCF record(s) has (have) been discovered during the
3375 * wait period, a new FCF event shall be added to the FCOE async event
3376 * list, and then worker thread shall be waked up for processing from the
3377 * worker thread context.
3378 **/
3379void
3380lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3381{
3382 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3383
3384 /* Don't send FCF rediscovery event if timer cancelled */
3385 spin_lock_irq(&phba->hbalock);
3386 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3387 spin_unlock_irq(&phba->hbalock);
3388 return;
3389 }
3390 /* Clear FCF rediscovery timer pending flag */
3391 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3392 /* FCF rediscovery event to worker thread */
3393 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3394 spin_unlock_irq(&phba->hbalock);
0c9ab6f5 3395 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
a93ff37a 3396 "2776 FCF rediscover quiescent timer expired\n");
ecfd03c6
JS		 3397 /* wake up worker thread */
3398 lpfc_worker_wake_up(phba);
3399}
3400
e59058c4 3401/**
da0436e9 3402 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
e59058c4 3403 * @phba: pointer to lpfc hba data structure.
da0436e9 3404 * @acqe_link: pointer to the async link completion queue entry.
e59058c4 3405 *
da0436e9
JS		 3406 * This routine is to parse the SLI4 link-attention link fault code and
3407 * translate it into the base driver's read link attention mailbox command
3408 * status.
3409 *
3410 * Return: Link-attention status in terms of base driver's coding.
e59058c4 3411 **/
da0436e9
JS		 3412static uint16_t
3413lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3414 struct lpfc_acqe_link *acqe_link)
db2378e0 3415{
da0436e9 3416 uint16_t latt_fault;
9399627f 3417
da0436e9
JS		 3418 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3419 case LPFC_ASYNC_LINK_FAULT_NONE:
3420 case LPFC_ASYNC_LINK_FAULT_LOCAL:
3421 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3422 latt_fault = 0;
3423 break;
3424 default:
3425 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3426 "0398 Invalid link fault code: x%x\n",
3427 bf_get(lpfc_acqe_link_fault, acqe_link));
3428 latt_fault = MBXERR_ERROR;
3429 break;
3430 }
3431 return latt_fault;
db2378e0
JS		 3432}
3433
5b75da2f 3434/**
da0436e9 3435 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
5b75da2f 3436 * @phba: pointer to lpfc hba data structure.
da0436e9 3437 * @acqe_link: pointer to the async link completion queue entry.
5b75da2f 3438 *
da0436e9
JS		 3439 * This routine is to parse the SLI4 link attention type and translate it
3440 * into the base driver's link attention type coding.
5b75da2f 3441 *
da0436e9
JS		 3442 * Return: Link attention type in terms of base driver's coding.
3443 **/
3444static uint8_t
3445lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3446 struct lpfc_acqe_link *acqe_link)
5b75da2f 3447{
da0436e9 3448 uint8_t att_type;
5b75da2f 3449
da0436e9
JS		 3450 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3451 case LPFC_ASYNC_LINK_STATUS_DOWN:
3452 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
76a95d75 3453 att_type = LPFC_ATT_LINK_DOWN;
da0436e9
JS		 3454 break;
3455 case LPFC_ASYNC_LINK_STATUS_UP:
3456 /* Ignore physical link up events - wait for logical link up */
76a95d75 3457 att_type = LPFC_ATT_RESERVED;
da0436e9
JS		 3458 break;
3459 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
76a95d75 3460 att_type = LPFC_ATT_LINK_UP;
da0436e9
JS		 3461 break;
3462 default:
3463 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3464 "0399 Invalid link attention type: x%x\n",
3465 bf_get(lpfc_acqe_link_status, acqe_link));
76a95d75 3466 att_type = LPFC_ATT_RESERVED;
da0436e9 3467 break;
5b75da2f 3468 }
da0436e9 3469 return att_type;
5b75da2f
JS		 3470}
3471
3472/**
da0436e9 3473 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
5b75da2f 3474 * @phba: pointer to lpfc hba data structure.
da0436e9 3475 * @acqe_link: pointer to the async link completion queue entry.
5b75da2f 3476 *
da0436e9
JS		 3477 * This routine is to parse the SLI4 link-attention link speed and translate
3478 * it into the base driver's link-attention link speed coding.
3479 *
3480 * Return: Link-attention link speed in terms of base driver's coding.
3481 **/
3482static uint8_t
3483lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3484 struct lpfc_acqe_link *acqe_link)
5b75da2f 3485{
da0436e9
JS		 3486 uint8_t link_speed;
3487
3488 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3489 case LPFC_ASYNC_LINK_SPEED_ZERO:
da0436e9 3490 case LPFC_ASYNC_LINK_SPEED_10MBPS:
da0436e9 3491 case LPFC_ASYNC_LINK_SPEED_100MBPS:
76a95d75 3492 link_speed = LPFC_LINK_SPEED_UNKNOWN;
da0436e9
JS		 3493 break;
3494 case LPFC_ASYNC_LINK_SPEED_1GBPS:
76a95d75 3495 link_speed = LPFC_LINK_SPEED_1GHZ;
da0436e9
JS		 3496 break;
3497 case LPFC_ASYNC_LINK_SPEED_10GBPS:
76a95d75 3498 link_speed = LPFC_LINK_SPEED_10GHZ;
da0436e9
JS		 3499 break;
3500 default:
3501 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3502 "0483 Invalid link-attention link speed: x%x\n",
3503 bf_get(lpfc_acqe_link_speed, acqe_link));
76a95d75 3504 link_speed = LPFC_LINK_SPEED_UNKNOWN;
da0436e9
JS		 3505 break;
3506 }
3507 return link_speed;
3508}
3509
3510/**
70f3c073 3511 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
da0436e9
JS		 3512 * @phba: pointer to lpfc hba data structure.
3513 * @acqe_link: pointer to the async link completion queue entry.
3514 *
70f3c073 3515 * This routine is to handle the SLI4 asynchronous FCoE link event.
da0436e9
JS		 3516 **/
3517static void
3518lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3519 struct lpfc_acqe_link *acqe_link)
3520{
3521 struct lpfc_dmabuf *mp;
3522 LPFC_MBOXQ_t *pmb;
3523 MAILBOX_t *mb;
76a95d75 3524 struct lpfc_mbx_read_top *la;
da0436e9 3525 uint8_t att_type;
76a95d75 3526 int rc;
da0436e9
JS		 3527
3528 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
76a95d75 3529 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
da0436e9 3530 return;
32b9793f 3531 phba->fcoe_eventtag = acqe_link->event_tag;
da0436e9
JS		 3532 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3533 if (!pmb) {
3534 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3535 "0395 The mboxq allocation failed\n");
3536 return;
3537 }
3538 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3539 if (!mp) {
3540 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3541 "0396 The lpfc_dmabuf allocation failed\n");
3542 goto out_free_pmb;
3543 }
3544 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3545 if (!mp->virt) {
3546 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3547 "0397 The mbuf allocation failed\n");
3548 goto out_free_dmabuf;
3549 }
3550
3551 /* Cleanup any outstanding ELS commands */
3552 lpfc_els_flush_all_cmd(phba);
3553
3554 /* Block ELS IOCBs until we have done process link event */
3555 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3556
3557 /* Update link event statistics */
3558 phba->sli.slistat.link_event++;
3559
76a95d75
JS		 3560 /* Create lpfc_handle_latt mailbox command from link ACQE */
3561 lpfc_read_topology(phba, pmb, mp);
3562 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
da0436e9
JS		 3563 pmb->vport = phba->pport;
3564
da0436e9
JS		 3565 /* Keep the link status for extra SLI4 state machine reference */
3566 phba->sli4_hba.link_state.speed =
3567 bf_get(lpfc_acqe_link_speed, acqe_link);
3568 phba->sli4_hba.link_state.duplex =
3569 bf_get(lpfc_acqe_link_duplex, acqe_link);
3570 phba->sli4_hba.link_state.status =
3571 bf_get(lpfc_acqe_link_status, acqe_link);
70f3c073
JS		 3572 phba->sli4_hba.link_state.type =
3573 bf_get(lpfc_acqe_link_type, acqe_link);
3574 phba->sli4_hba.link_state.number =
3575 bf_get(lpfc_acqe_link_number, acqe_link);
da0436e9
JS		 3576 phba->sli4_hba.link_state.fault =
3577 bf_get(lpfc_acqe_link_fault, acqe_link);
65467b6b 3578 phba->sli4_hba.link_state.logical_speed =
70f3c073
JS		 3579 bf_get(lpfc_acqe_logical_link_speed, acqe_link);
3580 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
c31098ce
JS		 3581 "2900 Async FC/FCoE Link event - Speed:%dGBit "
3582 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3583 "Logical speed:%dMbps Fault:%d\n",
70f3c073
JS		 3584 phba->sli4_hba.link_state.speed,
3585 phba->sli4_hba.link_state.topology,
3586 phba->sli4_hba.link_state.status,
3587 phba->sli4_hba.link_state.type,
3588 phba->sli4_hba.link_state.number,
3589 phba->sli4_hba.link_state.logical_speed * 10,
3590 phba->sli4_hba.link_state.fault);
76a95d75
JS		 3591 /*
3592 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3593 * topology info. Note: Optional for non FC-AL ports.
3594 */
3595 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3596 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3597 if (rc == MBX_NOT_FINISHED)
3598 goto out_free_dmabuf;
3599 return;
3600 }
3601 /*
3602 * For FCoE Mode: fill in all the topology information we need and call
3603 * the READ_TOPOLOGY completion routine to continue without actually
3604 * sending the READ_TOPOLOGY mailbox command to the port.
3605 */
3606 /* Parse and translate status field */
3607 mb = &pmb->u.mb;
3608 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3609
3610 /* Parse and translate link attention fields */
3611 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3612 la->eventTag = acqe_link->event_tag;
3613 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3614 bf_set(lpfc_mbx_read_top_link_spd, la,
3615 lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3616
3617 /* Fake the the following irrelvant fields */
3618 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3619 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3620 bf_set(lpfc_mbx_read_top_il, la, 0);
3621 bf_set(lpfc_mbx_read_top_pb, la, 0);
3622 bf_set(lpfc_mbx_read_top_fa, la, 0);
3623 bf_set(lpfc_mbx_read_top_mm, la, 0);
da0436e9
JS		 3624
3625 /* Invoke the lpfc_handle_latt mailbox command callback function */
76a95d75 3626 lpfc_mbx_cmpl_read_topology(phba, pmb);
da0436e9 3627
5b75da2f 3628 return;
da0436e9
JS		 3629
3630out_free_dmabuf:
3631 kfree(mp);
3632out_free_pmb:
3633 mempool_free(pmb, phba->mbox_mem_pool);
3634}
3635
70f3c073
JS		 3636/**
3637 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3638 * @phba: pointer to lpfc hba data structure.
3639 * @acqe_fc: pointer to the async fc completion queue entry.
3640 *
3641 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3642 * that the event was received and then issue a read_topology mailbox command so
3643 * that the rest of the driver will treat it the same as SLI3.
3644 **/
3645static void
3646lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3647{
3648 struct lpfc_dmabuf *mp;
3649 LPFC_MBOXQ_t *pmb;
3650 int rc;
3651
3652 if (bf_get(lpfc_trailer_type, acqe_fc) !=
3653 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3654 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3655 "2895 Non FC link Event detected.(%d)\n",
3656 bf_get(lpfc_trailer_type, acqe_fc));
3657 return;
3658 }
3659 /* Keep the link status for extra SLI4 state machine reference */
3660 phba->sli4_hba.link_state.speed =
3661 bf_get(lpfc_acqe_fc_la_speed, acqe_fc);
3662 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3663 phba->sli4_hba.link_state.topology =
3664 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3665 phba->sli4_hba.link_state.status =
3666 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3667 phba->sli4_hba.link_state.type =
3668 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3669 phba->sli4_hba.link_state.number =
3670 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3671 phba->sli4_hba.link_state.fault =
3672 bf_get(lpfc_acqe_link_fault, acqe_fc);
3673 phba->sli4_hba.link_state.logical_speed =
3674 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
3675 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3676 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3677 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3678 "%dMbps Fault:%d\n",
3679 phba->sli4_hba.link_state.speed,
3680 phba->sli4_hba.link_state.topology,
3681 phba->sli4_hba.link_state.status,
3682 phba->sli4_hba.link_state.type,
3683 phba->sli4_hba.link_state.number,
3684 phba->sli4_hba.link_state.logical_speed * 10,
3685 phba->sli4_hba.link_state.fault);
3686 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3687 if (!pmb) {
3688 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3689 "2897 The mboxq allocation failed\n");
3690 return;
3691 }
3692 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3693 if (!mp) {
3694 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3695 "2898 The lpfc_dmabuf allocation failed\n");
3696 goto out_free_pmb;
3697 }
3698 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3699 if (!mp->virt) {
3700 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3701 "2899 The mbuf allocation failed\n");
3702 goto out_free_dmabuf;
3703 }
3704
3705 /* Cleanup any outstanding ELS commands */
3706 lpfc_els_flush_all_cmd(phba);
3707
3708 /* Block ELS IOCBs until we have done process link event */
3709 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3710
3711 /* Update link event statistics */
3712 phba->sli.slistat.link_event++;
3713
3714 /* Create lpfc_handle_latt mailbox command from link ACQE */
3715 lpfc_read_topology(phba, pmb, mp);
3716 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3717 pmb->vport = phba->pport;
3718
3719 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3720 if (rc == MBX_NOT_FINISHED)
3721 goto out_free_dmabuf;
3722 return;
3723
3724out_free_dmabuf:
3725 kfree(mp);
3726out_free_pmb:
3727 mempool_free(pmb, phba->mbox_mem_pool);
3728}
3729
3730/**
3731 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3732 * @phba: pointer to lpfc hba data structure.
3733 * @acqe_fc: pointer to the async SLI completion queue entry.
3734 *
3735 * This routine is to handle the SLI4 asynchronous SLI events.
3736 **/
3737static void
3738lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3739{
4b8bae08
JS		 3740 char port_name;
3741 char message[80];
3742 uint8_t status;
3743 struct lpfc_acqe_misconfigured_event *misconfigured;
3744
3745 /* special case misconfigured event as it contains data for all ports */
3746 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
3747 LPFC_SLI_INTF_IF_TYPE_2) ||
3748 (bf_get(lpfc_trailer_type, acqe_sli) !=
3749 LPFC_SLI_EVENT_TYPE_MISCONFIGURED)) {
3750 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3751 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3752 "x%08x SLI Event Type:%d\n",
3753 acqe_sli->event_data1, acqe_sli->event_data2,
3754 bf_get(lpfc_trailer_type, acqe_sli));
3755 return;
3756 }
3757
3758 port_name = phba->Port[0];
3759 if (port_name == 0x00)
3760 port_name = '?'; /* get port name is empty */
3761
3762 misconfigured = (struct lpfc_acqe_misconfigured_event *)
3763 &acqe_sli->event_data1;
3764
3765 /* fetch the status for this port */
3766 switch (phba->sli4_hba.lnk_info.lnk_no) {
3767 case LPFC_LINK_NUMBER_0:
3768 status = bf_get(lpfc_sli_misconfigured_port0,
3769 &misconfigured->theEvent);
3770 break;
3771 case LPFC_LINK_NUMBER_1:
3772 status = bf_get(lpfc_sli_misconfigured_port1,
3773 &misconfigured->theEvent);
3774 break;
3775 case LPFC_LINK_NUMBER_2:
3776 status = bf_get(lpfc_sli_misconfigured_port2,
3777 &misconfigured->theEvent);
3778 break;
3779 case LPFC_LINK_NUMBER_3:
3780 status = bf_get(lpfc_sli_misconfigured_port3,
3781 &misconfigured->theEvent);
3782 break;
3783 default:
3784 status = ~LPFC_SLI_EVENT_STATUS_VALID;
3785 break;
3786 }
3787
3788 switch (status) {
3789 case LPFC_SLI_EVENT_STATUS_VALID:
3790 return; /* no message if the sfp is okay */
3791 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
292098be
JS		 3792 sprintf(message, "Optics faulted/incorrectly installed/not " \
3793 "installed - Reseat optics, if issue not "
3794 "resolved, replace.");
4b8bae08
JS		 3795 break;
3796 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
3797 sprintf(message,
292098be
JS		 3798 "Optics of two types installed - Remove one optic or " \
3799 "install matching pair of optics.");
4b8bae08
JS		 3800 break;
3801 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
292098be
JS		 3802 sprintf(message, "Incompatible optics - Replace with " \
3803 "compatible optics for card to function.");
4b8bae08
JS		 3804 break;
3805 default:
3806 /* firmware is reporting a status we don't know about */
3807 sprintf(message, "Unknown event status x%02x", status);
3808 break;
3809 }
3810
3811 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3812 "3176 Misconfigured Physical Port - "
3813 "Port Name %c %s\n", port_name, message);
70f3c073
JS		 3814}
3815
fc2b989b
JS		 3816/**
3817 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3818 * @vport: pointer to vport data structure.
3819 *
3820 * This routine is to perform Clear Virtual Link (CVL) on a vport in
3821 * response to a CVL event.
3822 *
3823 * Return the pointer to the ndlp with the vport if successful, otherwise
3824 * return NULL.
3825 **/
3826static struct lpfc_nodelist *
3827lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3828{
3829 struct lpfc_nodelist *ndlp;
3830 struct Scsi_Host *shost;
3831 struct lpfc_hba *phba;
3832
3833 if (!vport)
3834 return NULL;
fc2b989b
JS		 3835 phba = vport->phba;
3836 if (!phba)
3837 return NULL;
78730cfe
JS		 3838 ndlp = lpfc_findnode_did(vport, Fabric_DID);
3839 if (!ndlp) {
3840 /* Cannot find existing Fabric ndlp, so allocate a new one */
3841 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3842 if (!ndlp)
3843 return 0;
3844 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3845 /* Set the node type */
3846 ndlp->nlp_type |= NLP_FABRIC;
3847 /* Put ndlp onto node list */
3848 lpfc_enqueue_node(vport, ndlp);
3849 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3850 /* re-setup ndlp without removing from node list */
3851 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3852 if (!ndlp)
3853 return 0;
3854 }
63e801ce
JS		 3855 if ((phba->pport->port_state < LPFC_FLOGI) &&
3856 (phba->pport->port_state != LPFC_VPORT_FAILED))
fc2b989b
JS		 3857 return NULL;
3858 /* If virtual link is not yet instantiated ignore CVL */
63e801ce
JS		 3859 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
3860 && (vport->port_state != LPFC_VPORT_FAILED))
fc2b989b
JS		 3861 return NULL;
3862 shost = lpfc_shost_from_vport(vport);
3863 if (!shost)
3864 return NULL;
3865 lpfc_linkdown_port(vport);
3866 lpfc_cleanup_pending_mbox(vport);
3867 spin_lock_irq(shost->host_lock);
3868 vport->fc_flag |= FC_VPORT_CVL_RCVD;
3869 spin_unlock_irq(shost->host_lock);
3870
3871 return ndlp;
3872}
3873
3874/**
3875 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3876 * @vport: pointer to lpfc hba data structure.
3877 *
3878 * This routine is to perform Clear Virtual Link (CVL) on all vports in
3879 * response to a FCF dead event.
3880 **/
3881static void
3882lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3883{
3884 struct lpfc_vport **vports;
3885 int i;
3886
3887 vports = lpfc_create_vport_work_array(phba);
3888 if (vports)
3889 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3890 lpfc_sli4_perform_vport_cvl(vports[i]);
3891 lpfc_destroy_vport_work_array(phba, vports);
3892}
3893
da0436e9 3894/**
76a95d75 3895 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
da0436e9
JS		 3896 * @phba: pointer to lpfc hba data structure.
3897 * @acqe_link: pointer to the async fcoe completion queue entry.
3898 *
3899 * This routine is to handle the SLI4 asynchronous fcoe event.
3900 **/
3901static void
76a95d75 3902lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
70f3c073 3903 struct lpfc_acqe_fip *acqe_fip)
da0436e9 3904{
70f3c073 3905 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
da0436e9 3906 int rc;
6669f9bb
JS		 3907 struct lpfc_vport *vport;
3908 struct lpfc_nodelist *ndlp;
3909 struct Scsi_Host *shost;
695a814e
JS		 3910 int active_vlink_present;
3911 struct lpfc_vport **vports;
3912 int i;
da0436e9 3913
70f3c073
JS		 3914 phba->fc_eventTag = acqe_fip->event_tag;
3915 phba->fcoe_eventtag = acqe_fip->event_tag;
da0436e9 3916 switch (event_type) {
70f3c073
JS		 3917 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
3918 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
3919 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
999d813f
JS		 3920 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3921 LOG_DISCOVERY,
a93ff37a
JS		 3922 "2546 New FCF event, evt_tag:x%x, "
3923 "index:x%x\n",
70f3c073
JS		 3924 acqe_fip->event_tag,
3925 acqe_fip->index);
999d813f
JS		 3926 else
3927 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3928 LOG_DISCOVERY,
a93ff37a
JS		 3929 "2788 FCF param modified event, "
3930 "evt_tag:x%x, index:x%x\n",
70f3c073
JS		 3931 acqe_fip->event_tag,
3932 acqe_fip->index);
38b92ef8 3933 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
0c9ab6f5
JS		 3934 /*
3935 * During period of FCF discovery, read the FCF
3936 * table record indexed by the event to update
a93ff37a 3937 * FCF roundrobin failover eligible FCF bmask.
0c9ab6f5
JS		 3938 */
3939 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3940 LOG_DISCOVERY,
a93ff37a
JS		 3941 "2779 Read FCF (x%x) for updating "
3942 "roundrobin FCF failover bmask\n",
70f3c073
JS		 3943 acqe_fip->index);
3944 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
0c9ab6f5 3945 }
38b92ef8
JS		 3946
3947 /* If the FCF discovery is in progress, do nothing. */
3804dc84 3948 spin_lock_irq(&phba->hbalock);
a93ff37a 3949 if (phba->hba_flag & FCF_TS_INPROG) {
38b92ef8
JS		 3950 spin_unlock_irq(&phba->hbalock);
3951 break;
3952 }
3953 /* If fast FCF failover rescan event is pending, do nothing */
3954 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3955 spin_unlock_irq(&phba->hbalock);
3956 break;
3957 }
3958
3959 /* If the FCF has been in discovered state, do nothing. */
3804dc84
JS		 3960 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
3961 spin_unlock_irq(&phba->hbalock);
3962 break;
3963 }
3964 spin_unlock_irq(&phba->hbalock);
38b92ef8 3965
0c9ab6f5
JS		 3966 /* Otherwise, scan the entire FCF table and re-discover SAN */
3967 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
a93ff37a
JS		 3968 "2770 Start FCF table scan per async FCF "
3969 "event, evt_tag:x%x, index:x%x\n",
70f3c073 3970 acqe_fip->event_tag, acqe_fip->index);
0c9ab6f5
JS		 3971 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3972 LPFC_FCOE_FCF_GET_FIRST);
da0436e9 3973 if (rc)
0c9ab6f5
JS		 3974 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3975 "2547 Issue FCF scan read FCF mailbox "
a93ff37a 3976 "command failed (x%x)\n", rc);
da0436e9
JS		 3977 break;
3978
70f3c073 3979 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
da0436e9 3980 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
e4e74273 3981 "2548 FCF Table full count 0x%x tag 0x%x\n",
70f3c073
JS		 3982 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
3983 acqe_fip->event_tag);
da0436e9
JS		 3984 break;
3985
70f3c073 3986 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
80c17849 3987 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
0c9ab6f5 3988 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
a93ff37a 3989 "2549 FCF (x%x) disconnected from network, "
70f3c073 3990 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
38b92ef8
JS		 3991 /*
3992 * If we are in the middle of FCF failover process, clear
3993 * the corresponding FCF bit in the roundrobin bitmap.
da0436e9 3994 */
fc2b989b 3995 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3996 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
fc2b989b 3997 spin_unlock_irq(&phba->hbalock);
0c9ab6f5 3998 /* Update FLOGI FCF failover eligible FCF bmask */
70f3c073 3999 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
fc2b989b
JS		 4000 break;
4001 }
38b92ef8
JS		 4002 spin_unlock_irq(&phba->hbalock);
4003
4004 /* If the event is not for currently used fcf do nothing */
70f3c073 4005 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
38b92ef8
JS		 4006 break;
4007
4008 /*
4009 * Otherwise, request the port to rediscover the entire FCF
4010 * table for a fast recovery from case that the current FCF
4011 * is no longer valid as we are not in the middle of FCF
4012 * failover process already.
4013 */
4014 spin_lock_irq(&phba->hbalock);
fc2b989b 4015 /* Mark the fast failover process in progress */
0c9ab6f5 4016 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
fc2b989b 4017 spin_unlock_irq(&phba->hbalock);
38b92ef8 4018
0c9ab6f5
JS		 4019 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4020 "2771 Start FCF fast failover process due to "
4021 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
70f3c073 4022 "\n", acqe_fip->event_tag, acqe_fip->index);
fc2b989b
JS		 4023 rc = lpfc_sli4_redisc_fcf_table(phba);
4024 if (rc) {
0c9ab6f5
JS		 4025 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4026 LOG_DISCOVERY,
4027 "2772 Issue FCF rediscover mabilbox "
4028 "command failed, fail through to FCF "
4029 "dead event\n");
fc2b989b 4030 spin_lock_irq(&phba->hbalock);
0c9ab6f5 4031 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
fc2b989b
JS		 4032 spin_unlock_irq(&phba->hbalock);
4033 /*
4034 * Last resort will fail over by treating this
4035 * as a link down to FCF registration.
4036 */
4037 lpfc_sli4_fcf_dead_failthrough(phba);
38b92ef8
JS		 4038 } else {
4039 /* Reset FCF roundrobin bmask for new discovery */
7d791df7 4040 lpfc_sli4_clear_fcf_rr_bmask(phba);
38b92ef8
JS		 4041 /*
4042 * Handling fast FCF failover to a DEAD FCF event is
4043 * considered equalivant to receiving CVL to all vports.
fc2b989b
JS		 4044 */
4045 lpfc_sli4_perform_all_vport_cvl(phba);
38b92ef8 4046 }
da0436e9 4047 break;
70f3c073 4048 case LPFC_FIP_EVENT_TYPE_CVL:
80c17849 4049 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
0c9ab6f5 4050 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
6669f9bb 4051 "2718 Clear Virtual Link Received for VPI 0x%x"
70f3c073 4052 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
6d368e53 4053
6669f9bb 4054 vport = lpfc_find_vport_by_vpid(phba,
5248a749 4055 acqe_fip->index);
fc2b989b 4056 ndlp = lpfc_sli4_perform_vport_cvl(vport);
6669f9bb
JS		 4057 if (!ndlp)
4058 break;
695a814e
JS		 4059 active_vlink_present = 0;
4060
4061 vports = lpfc_create_vport_work_array(phba);
4062 if (vports) {
4063 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4064 i++) {
4065 if ((!(vports[i]->fc_flag &
4066 FC_VPORT_CVL_RCVD)) &&
4067 (vports[i]->port_state > LPFC_FDISC)) {
4068 active_vlink_present = 1;
4069 break;
4070 }
4071 }
4072 lpfc_destroy_vport_work_array(phba, vports);
4073 }
4074
4075 if (active_vlink_present) {
4076 /*
4077 * If there are other active VLinks present,
4078 * re-instantiate the Vlink using FDISC.
4079 */
6669f9bb 4080 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
fc2b989b 4081 shost = lpfc_shost_from_vport(vport);
6669f9bb
JS		 4082 spin_lock_irq(shost->host_lock);
4083 ndlp->nlp_flag |= NLP_DELAY_TMO;
4084 spin_unlock_irq(shost->host_lock);
695a814e
JS		 4085 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4086 vport->port_state = LPFC_FDISC;
4087 } else {
ecfd03c6
JS		 4088 /*
4089 * Otherwise, we request port to rediscover
4090 * the entire FCF table for a fast recovery
4091 * from possible case that the current FCF
0c9ab6f5
JS		 4092 * is no longer valid if we are not already
4093 * in the FCF failover process.
ecfd03c6 4094 */
fc2b989b 4095 spin_lock_irq(&phba->hbalock);
0c9ab6f5 4096 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
fc2b989b
JS		 4097 spin_unlock_irq(&phba->hbalock);
4098 break;
4099 }
4100 /* Mark the fast failover process in progress */
0c9ab6f5 4101 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
fc2b989b 4102 spin_unlock_irq(&phba->hbalock);
0c9ab6f5
JS		 4103 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4104 LOG_DISCOVERY,
a93ff37a 4105 "2773 Start FCF failover per CVL, "
70f3c073 4106 "evt_tag:x%x\n", acqe_fip->event_tag);
ecfd03c6 4107 rc = lpfc_sli4_redisc_fcf_table(phba);
fc2b989b 4108 if (rc) {
0c9ab6f5
JS		 4109 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4110 LOG_DISCOVERY,
4111 "2774 Issue FCF rediscover "
4112 "mabilbox command failed, "
4113 "through to CVL event\n");
fc2b989b 4114 spin_lock_irq(&phba->hbalock);
0c9ab6f5 4115 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
fc2b989b 4116 spin_unlock_irq(&phba->hbalock);
ecfd03c6
JS		 4117 /*
4118 * Last resort will be re-try on the
4119 * the current registered FCF entry.
4120 */
4121 lpfc_retry_pport_discovery(phba);
38b92ef8
JS		 4122 } else
4123 /*
4124 * Reset FCF roundrobin bmask for new
4125 * discovery.
4126 */
7d791df7 4127 lpfc_sli4_clear_fcf_rr_bmask(phba);
6669f9bb
JS		 4128 }
4129 break;
da0436e9
JS		 4130 default:
4131 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4132 "0288 Unknown FCoE event type 0x%x event tag "
70f3c073 4133 "0x%x\n", event_type, acqe_fip->event_tag);
da0436e9
JS		 4134 break;
4135 }
4136}
4137
4138/**
4139 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4140 * @phba: pointer to lpfc hba data structure.
4141 * @acqe_link: pointer to the async dcbx completion queue entry.
4142 *
4143 * This routine is to handle the SLI4 asynchronous dcbx event.
4144 **/
4145static void
4146lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4147 struct lpfc_acqe_dcbx *acqe_dcbx)
4148{
4d9ab994 4149 phba->fc_eventTag = acqe_dcbx->event_tag;
da0436e9
JS		 4150 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4151 "0290 The SLI4 DCBX asynchronous event is not "
4152 "handled yet\n");
4153}
4154
b19a061a
JS		 4155/**
4156 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4157 * @phba: pointer to lpfc hba data structure.
4158 * @acqe_link: pointer to the async grp5 completion queue entry.
4159 *
4160 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4161 * is an asynchronous notified of a logical link speed change. The Port
4162 * reports the logical link speed in units of 10Mbps.
4163 **/
4164static void
4165lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4166 struct lpfc_acqe_grp5 *acqe_grp5)
4167{
4168 uint16_t prev_ll_spd;
4169
4170 phba->fc_eventTag = acqe_grp5->event_tag;
4171 phba->fcoe_eventtag = acqe_grp5->event_tag;
4172 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4173 phba->sli4_hba.link_state.logical_speed =
4174 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
4175 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4176 "2789 GRP5 Async Event: Updating logical link speed "
4177 "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
4178 (phba->sli4_hba.link_state.logical_speed*10));
4179}
4180
da0436e9
JS		 4181/**
4182 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4183 * @phba: pointer to lpfc hba data structure.
4184 *
4185 * This routine is invoked by the worker thread to process all the pending
4186 * SLI4 asynchronous events.
4187 **/
4188void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4189{
4190 struct lpfc_cq_event *cq_event;
4191
4192 /* First, declare the async event has been handled */
4193 spin_lock_irq(&phba->hbalock);
4194 phba->hba_flag &= ~ASYNC_EVENT;
4195 spin_unlock_irq(&phba->hbalock);
4196 /* Now, handle all the async events */
4197 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4198 /* Get the first event from the head of the event queue */
4199 spin_lock_irq(&phba->hbalock);
4200 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4201 cq_event, struct lpfc_cq_event, list);
4202 spin_unlock_irq(&phba->hbalock);
4203 /* Process the asynchronous event */
4204 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4205 case LPFC_TRAILER_CODE_LINK:
4206 lpfc_sli4_async_link_evt(phba,
4207 &cq_event->cqe.acqe_link);
4208 break;
4209 case LPFC_TRAILER_CODE_FCOE:
70f3c073 4210 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
da0436e9
JS		 4211 break;
4212 case LPFC_TRAILER_CODE_DCBX:
4213 lpfc_sli4_async_dcbx_evt(phba,
4214 &cq_event->cqe.acqe_dcbx);
4215 break;
b19a061a
JS		 4216 case LPFC_TRAILER_CODE_GRP5:
4217 lpfc_sli4_async_grp5_evt(phba,
4218 &cq_event->cqe.acqe_grp5);
4219 break;
70f3c073
JS		 4220 case LPFC_TRAILER_CODE_FC:
4221 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4222 break;
4223 case LPFC_TRAILER_CODE_SLI:
4224 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4225 break;
da0436e9
JS		 4226 default:
4227 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4228 "1804 Invalid asynchrous event code: "
4229 "x%x\n", bf_get(lpfc_trailer_code,
4230 &cq_event->cqe.mcqe_cmpl));
4231 break;
4232 }
4233 /* Free the completion event processed to the free pool */
4234 lpfc_sli4_cq_event_release(phba, cq_event);
4235 }
4236}
4237
ecfd03c6
JS		 4238/**
4239 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4240 * @phba: pointer to lpfc hba data structure.
4241 *
4242 * This routine is invoked by the worker thread to process FCF table
4243 * rediscovery pending completion event.
4244 **/
4245void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4246{
4247 int rc;
4248
4249 spin_lock_irq(&phba->hbalock);
4250 /* Clear FCF rediscovery timeout event */
4251 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4252 /* Clear driver fast failover FCF record flag */
4253 phba->fcf.failover_rec.flag = 0;
4254 /* Set state for FCF fast failover */
4255 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4256 spin_unlock_irq(&phba->hbalock);
4257
4258 /* Scan FCF table from the first entry to re-discover SAN */
0c9ab6f5 4259 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
a93ff37a 4260 "2777 Start post-quiescent FCF table scan\n");
0c9ab6f5 4261 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
ecfd03c6 4262 if (rc)
0c9ab6f5
JS		 4263 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4264 "2747 Issue FCF scan read FCF mailbox "
4265 "command failed 0x%x\n", rc);
ecfd03c6
JS		 4266}
4267
da0436e9
JS		 4268/**
4269 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4270 * @phba: pointer to lpfc hba data structure.
4271 * @dev_grp: The HBA PCI-Device group number.
4272 *
4273 * This routine is invoked to set up the per HBA PCI-Device group function
4274 * API jump table entries.
4275 *
4276 * Return: 0 if success, otherwise -ENODEV
4277 **/
4278int
4279lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4280{
4281 int rc;
4282
4283 /* Set up lpfc PCI-device group */
4284 phba->pci_dev_grp = dev_grp;
4285
4286 /* The LPFC_PCI_DEV_OC uses SLI4 */
4287 if (dev_grp == LPFC_PCI_DEV_OC)
4288 phba->sli_rev = LPFC_SLI_REV4;
4289
4290 /* Set up device INIT API function jump table */
4291 rc = lpfc_init_api_table_setup(phba, dev_grp);
4292 if (rc)
4293 return -ENODEV;
4294 /* Set up SCSI API function jump table */
4295 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4296 if (rc)
4297 return -ENODEV;
4298 /* Set up SLI API function jump table */
4299 rc = lpfc_sli_api_table_setup(phba, dev_grp);
4300 if (rc)
4301 return -ENODEV;
4302 /* Set up MBOX API function jump table */
4303 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4304 if (rc)
4305 return -ENODEV;
4306
4307 return 0;
5b75da2f
JS		 4308}
4309
4310/**
3621a710 4311 * lpfc_log_intr_mode - Log the active interrupt mode
5b75da2f
JS		 4312 * @phba: pointer to lpfc hba data structure.
4313 * @intr_mode: active interrupt mode adopted.
4314 *
4315 * This routine it invoked to log the currently used active interrupt mode
4316 * to the device.
3772a991
JS		 4317 **/
4318static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5b75da2f
JS		 4319{
4320 switch (intr_mode) {
4321 case 0:
4322 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4323 "0470 Enable INTx interrupt mode.\n");
4324 break;
4325 case 1:
4326 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4327 "0481 Enabled MSI interrupt mode.\n");
4328 break;
4329 case 2:
4330 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4331 "0480 Enabled MSI-X interrupt mode.\n");
4332 break;
4333 default:
4334 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4335 "0482 Illegal interrupt mode.\n");
4336 break;
4337 }
4338 return;
4339}
4340
5b75da2f 4341/**
3772a991 4342 * lpfc_enable_pci_dev - Enable a generic PCI device.
5b75da2f
JS		 4343 * @phba: pointer to lpfc hba data structure.
4344 *
3772a991
JS		 4345 * This routine is invoked to enable the PCI device that is common to all
4346 * PCI devices.
5b75da2f
JS		 4347 *
4348 * Return codes
af901ca1 4349 * 0 - successful
3772a991 4350 * other values - error
5b75da2f 4351 **/
3772a991
JS		 4352static int
4353lpfc_enable_pci_dev(struct lpfc_hba *phba)
5b75da2f 4354{
3772a991 4355 struct pci_dev *pdev;
079b5c91 4356 int bars = 0;
5b75da2f 4357
3772a991
JS		 4358 /* Obtain PCI device reference */
4359 if (!phba->pcidev)
4360 goto out_error;
4361 else
4362 pdev = phba->pcidev;
4363 /* Select PCI BARs */
4364 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4365 /* Enable PCI device */
4366 if (pci_enable_device_mem(pdev))
4367 goto out_error;
4368 /* Request PCI resource for the device */
4369 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4370 goto out_disable_device;
4371 /* Set up device as PCI master and save state for EEH */
4372 pci_set_master(pdev);
4373 pci_try_set_mwi(pdev);
4374 pci_save_state(pdev);
5b75da2f 4375
0558056c
JS		 4376 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4377 if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
4378 pdev->needs_freset = 1;
4379
3772a991 4380 return 0;
5b75da2f 4381
3772a991
JS		 4382out_disable_device:
4383 pci_disable_device(pdev);
4384out_error:
079b5c91
JS		 4385 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4386 "1401 Failed to enable pci device, bars:x%x\n", bars);
3772a991 4387 return -ENODEV;
5b75da2f
JS		 4388}
4389
4390/**
3772a991 4391 * lpfc_disable_pci_dev - Disable a generic PCI device.
5b75da2f
JS		 4392 * @phba: pointer to lpfc hba data structure.
4393 *
3772a991
JS		 4394 * This routine is invoked to disable the PCI device that is common to all
4395 * PCI devices.
5b75da2f
JS		 4396 **/
4397static void
3772a991 4398lpfc_disable_pci_dev(struct lpfc_hba *phba)
5b75da2f 4399{
3772a991
JS		 4400 struct pci_dev *pdev;
4401 int bars;
5b75da2f 4402
3772a991
JS		 4403 /* Obtain PCI device reference */
4404 if (!phba->pcidev)
4405 return;
4406 else
4407 pdev = phba->pcidev;
4408 /* Select PCI BARs */
4409 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4410 /* Release PCI resource and disable PCI device */
4411 pci_release_selected_regions(pdev, bars);
4412 pci_disable_device(pdev);
4413 /* Null out PCI private reference to driver */
4414 pci_set_drvdata(pdev, NULL);
5b75da2f
JS		 4415
4416 return;
4417}
4418
e59058c4 4419/**
3772a991
JS		 4420 * lpfc_reset_hba - Reset a hba
4421 * @phba: pointer to lpfc hba data structure.
e59058c4 4422 *
3772a991
JS		 4423 * This routine is invoked to reset a hba device. It brings the HBA
4424 * offline, performs a board restart, and then brings the board back
4425 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4426 * on outstanding mailbox commands.
e59058c4 4427 **/
3772a991
JS		 4428void
4429lpfc_reset_hba(struct lpfc_hba *phba)
dea3101e 4430{
3772a991
JS		 4431 /* If resets are disabled then set error state and return. */
4432 if (!phba->cfg_enable_hba_reset) {
4433 phba->link_state = LPFC_HBA_ERROR;
4434 return;
4435 }
618a5230 4436 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
3772a991
JS		 4437 lpfc_offline(phba);
4438 lpfc_sli_brdrestart(phba);
4439 lpfc_online(phba);
4440 lpfc_unblock_mgmt_io(phba);
4441}
dea3101e 4442
0a96e975
JS		 4443/**
4444 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4445 * @phba: pointer to lpfc hba data structure.
4446 *
4447 * This function enables the PCI SR-IOV virtual functions to a physical
4448 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4449 * enable the number of virtual functions to the physical function. As
4450 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4451 * API call does not considered as an error condition for most of the device.
4452 **/
4453uint16_t
4454lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4455{
4456 struct pci_dev *pdev = phba->pcidev;
4457 uint16_t nr_virtfn;
4458 int pos;
4459
0a96e975
JS		 4460 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4461 if (pos == 0)
4462 return 0;
4463
4464 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4465 return nr_virtfn;
4466}
4467
912e3acd
JS		 4468/**
4469 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4470 * @phba: pointer to lpfc hba data structure.
4471 * @nr_vfn: number of virtual functions to be enabled.
4472 *
4473 * This function enables the PCI SR-IOV virtual functions to a physical
4474 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4475 * enable the number of virtual functions to the physical function. As
4476 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4477 * API call does not considered as an error condition for most of the device.
4478 **/
4479int
4480lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4481{
4482 struct pci_dev *pdev = phba->pcidev;
0a96e975 4483 uint16_t max_nr_vfn;
912e3acd
JS		 4484 int rc;
4485
0a96e975
JS		 4486 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4487 if (nr_vfn > max_nr_vfn) {
4488 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4489 "3057 Requested vfs (%d) greater than "
4490 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4491 return -EINVAL;
4492 }
4493
912e3acd
JS		 4494 rc = pci_enable_sriov(pdev, nr_vfn);
4495 if (rc) {
4496 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4497 "2806 Failed to enable sriov on this device "
4498 "with vfn number nr_vf:%d, rc:%d\n",
4499 nr_vfn, rc);
4500 } else
4501 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4502 "2807 Successful enable sriov on this device "
4503 "with vfn number nr_vf:%d\n", nr_vfn);
4504 return rc;
4505}
4506
3772a991
JS		 4507/**
4508 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4509 * @phba: pointer to lpfc hba data structure.
4510 *
4511 * This routine is invoked to set up the driver internal resources specific to
4512 * support the SLI-3 HBA device it attached to.
4513 *
4514 * Return codes
af901ca1 4515 * 0 - successful
3772a991
JS		 4516 * other values - error
4517 **/
4518static int
4519lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4520{
4521 struct lpfc_sli *psli;
912e3acd 4522 int rc;
dea3101e 4523
2e0fef85 4524 /*
3772a991 4525 * Initialize timers used by driver
2e0fef85 4526 */
dea3101e 4527
3772a991 4528 /* Heartbeat timer */
858c9f6c
JS		 4529 init_timer(&phba->hb_tmofunc);
4530 phba->hb_tmofunc.function = lpfc_hb_timeout;
4531 phba->hb_tmofunc.data = (unsigned long)phba;
4532
dea3101e 4533 psli = &phba->sli;
3772a991 4534 /* MBOX heartbeat timer */
dea3101e 4535 init_timer(&psli->mbox_tmo);
4536 psli->mbox_tmo.function = lpfc_mbox_timeout;
2e0fef85 4537 psli->mbox_tmo.data = (unsigned long) phba;
3772a991 4538 /* FCP polling mode timer */
875fbdfe
JSEC		 4539 init_timer(&phba->fcp_poll_timer);
4540 phba->fcp_poll_timer.function = lpfc_poll_timeout;
2e0fef85 4541 phba->fcp_poll_timer.data = (unsigned long) phba;
3772a991 4542 /* Fabric block timer */
92d7f7b0
JS		 4543 init_timer(&phba->fabric_block_timer);
4544 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4545 phba->fabric_block_timer.data = (unsigned long) phba;
3772a991 4546 /* EA polling mode timer */
9399627f
JS		 4547 init_timer(&phba->eratt_poll);
4548 phba->eratt_poll.function = lpfc_poll_eratt;
4549 phba->eratt_poll.data = (unsigned long) phba;
dea3101e 4550
3772a991
JS		 4551 /* Host attention work mask setup */
4552 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4553 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
dea3101e 4554
3772a991
JS		 4555 /* Get all the module params for configuring this host */
4556 lpfc_get_cfgparam(phba);
49198b37
JS		 4557 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4558 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4559 /* check for menlo minimum sg count */
4560 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4561 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4562 }
4563
2a76a283
JS		 4564 if (!phba->sli.ring)
4565 phba->sli.ring = (struct lpfc_sli_ring *)
4566 kzalloc(LPFC_SLI3_MAX_RING *
4567 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4568 if (!phba->sli.ring)
4569 return -ENOMEM;
4570
dea3101e 4571 /*
3772a991
JS		 4572 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4573 * used to create the sg_dma_buf_pool must be dynamically calculated.
4574 * 2 segments are added since the IOCB needs a command and response bde.
dea3101e 4575 */
3772a991
JS		 4576 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4577 sizeof(struct fcp_rsp) +
4578 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4579
4580 if (phba->cfg_enable_bg) {
4581 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4582 phba->cfg_sg_dma_buf_size +=
4583 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
901a920f 4584 }
dea3101e 4585
3772a991
JS		 4586 /* Also reinitialize the host templates with new values. */
4587 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4588 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
dea3101e 4589
3772a991
JS		 4590 phba->max_vpi = LPFC_MAX_VPI;
4591 /* This will be set to correct value after config_port mbox */
4592 phba->max_vports = 0;
dea3101e 4593
3772a991
JS		 4594 /*
4595 * Initialize the SLI Layer to run with lpfc HBAs.
4596 */
4597 lpfc_sli_setup(phba);
4598 lpfc_sli_queue_setup(phba);
ed957684 4599
3772a991
JS		 4600 /* Allocate device driver memory */
4601 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4602 return -ENOMEM;
51ef4c26 4603
912e3acd
JS		 4604 /*
4605 * Enable sr-iov virtual functions if supported and configured
4606 * through the module parameter.
4607 */
4608 if (phba->cfg_sriov_nr_virtfn > 0) {
4609 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4610 phba->cfg_sriov_nr_virtfn);
4611 if (rc) {
4612 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4613 "2808 Requested number of SR-IOV "
4614 "virtual functions (%d) is not "
4615 "supported\n",
4616 phba->cfg_sriov_nr_virtfn);
4617 phba->cfg_sriov_nr_virtfn = 0;
4618 }
4619 }
4620
3772a991
JS		 4621 return 0;
4622}
ed957684 4623
3772a991
JS		 4624/**
4625 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4626 * @phba: pointer to lpfc hba data structure.
4627 *
4628 * This routine is invoked to unset the driver internal resources set up
4629 * specific for supporting the SLI-3 HBA device it attached to.
4630 **/
4631static void
4632lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4633{
4634 /* Free device driver memory allocated */
4635 lpfc_mem_free_all(phba);
3163f725 4636
3772a991
JS		 4637 return;
4638}
dea3101e 4639
3772a991 4640/**
da0436e9 4641 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3772a991
JS		 4642 * @phba: pointer to lpfc hba data structure.
4643 *
da0436e9
JS		 4644 * This routine is invoked to set up the driver internal resources specific to
4645 * support the SLI-4 HBA device it attached to.
3772a991
JS		 4646 *
4647 * Return codes
af901ca1 4648 * 0 - successful
da0436e9 4649 * other values - error
3772a991
JS		 4650 **/
4651static int
da0436e9 4652lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3772a991 4653{
da0436e9 4654 struct lpfc_sli *psli;
28baac74
JS		 4655 LPFC_MBOXQ_t *mboxq;
4656 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
4657 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4658 struct lpfc_mqe *mqe;
085c647c 4659 int longs, sli_family;
acd6859b 4660 int sges_per_segment;
da0436e9
JS		 4661
4662 /* Before proceed, wait for POST done and device ready */
4663 rc = lpfc_sli4_post_status_check(phba);
4664 if (rc)
4665 return -ENODEV;
4666
3772a991 4667 /*
da0436e9 4668 * Initialize timers used by driver
3772a991 4669 */
3772a991 4670
da0436e9
JS		 4671 /* Heartbeat timer */
4672 init_timer(&phba->hb_tmofunc);
4673 phba->hb_tmofunc.function = lpfc_hb_timeout;
4674 phba->hb_tmofunc.data = (unsigned long)phba;
19ca7609
JS		 4675 init_timer(&phba->rrq_tmr);
4676 phba->rrq_tmr.function = lpfc_rrq_timeout;
4677 phba->rrq_tmr.data = (unsigned long)phba;
3772a991 4678
da0436e9
JS		 4679 psli = &phba->sli;
4680 /* MBOX heartbeat timer */
4681 init_timer(&psli->mbox_tmo);
4682 psli->mbox_tmo.function = lpfc_mbox_timeout;
4683 psli->mbox_tmo.data = (unsigned long) phba;
4684 /* Fabric block timer */
4685 init_timer(&phba->fabric_block_timer);
4686 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4687 phba->fabric_block_timer.data = (unsigned long) phba;
4688 /* EA polling mode timer */
4689 init_timer(&phba->eratt_poll);
4690 phba->eratt_poll.function = lpfc_poll_eratt;
4691 phba->eratt_poll.data = (unsigned long) phba;
ecfd03c6
JS		 4692 /* FCF rediscover timer */
4693 init_timer(&phba->fcf.redisc_wait);
4694 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4695 phba->fcf.redisc_wait.data = (unsigned long)phba;
4696
7ad20aa9
JS		 4697 /*
4698 * Control structure for handling external multi-buffer mailbox
4699 * command pass-through.
4700 */
4701 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
4702 sizeof(struct lpfc_mbox_ext_buf_ctx));
4703 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4704
da0436e9
JS		 4705 /*
4706 * We need to do a READ_CONFIG mailbox command here before
4707 * calling lpfc_get_cfgparam. For VFs this will report the
4708 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4709 * All of the resources allocated
4710 * for this Port are tied to these values.
4711 */
4712 /* Get all the module params for configuring this host */
4713 lpfc_get_cfgparam(phba);
4714 phba->max_vpi = LPFC_MAX_VPI;
67d12733
JS		 4715
4716 /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */
4717 phba->cfg_fcp_io_channel = phba->cfg_fcp_eq_count;
4718
da0436e9
JS		 4719 /* This will be set to correct value after the read_config mbox */
4720 phba->max_vports = 0;
3772a991 4721
da0436e9
JS		 4722 /* Program the default value of vlan_id and fc_map */
4723 phba->valid_vlan = 0;
4724 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4725 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4726 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
3772a991 4727
acd6859b
JS		 4728 /* With BlockGuard we can have multiple SGEs per Data Segemnt */
4729 sges_per_segment = 1;
4730 if (phba->cfg_enable_bg)
4731 sges_per_segment = 2;
4732
2a76a283
JS		 4733 /*
4734 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
4735 * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
4736 */
4737 if (!phba->sli.ring)
4738 phba->sli.ring = kzalloc(
67d12733 4739 (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
2a76a283
JS		 4740 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4741 if (!phba->sli.ring)
4742 return -ENOMEM;
da0436e9
JS		 4743 /*
4744 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4745 * used to create the sg_dma_buf_pool must be dynamically calculated.
4746 * 2 segments are added since the IOCB needs a command and response bde.
4747 * To insure that the scsi sgl does not cross a 4k page boundary only
28baac74 4748 * sgl sizes of must be a power of 2.
da0436e9 4749 */
28baac74 4750 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
acd6859b
JS		 4751 (((phba->cfg_sg_seg_cnt * sges_per_segment) + 2) *
4752 sizeof(struct sli4_sge)));
085c647c
JS		 4753
4754 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
4755 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4756 switch (sli_family) {
4757 case LPFC_SLI_INTF_FAMILY_BE2:
4758 case LPFC_SLI_INTF_FAMILY_BE3:
4759 /* There is a single hint for BE - 2 pages per BPL. */
4760 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
4761 LPFC_SLI_INTF_SLI_HINT1_1)
4762 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4763 break;
4764 case LPFC_SLI_INTF_FAMILY_LNCR_A0:
4765 case LPFC_SLI_INTF_FAMILY_LNCR_B0:
4766 default:
4767 break;
4768 }
acd6859b 4769
28baac74
JS		 4770 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4771 dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4772 dma_buf_size = dma_buf_size << 1)
4773 ;
4774 if (dma_buf_size == max_buf_size)
4775 phba->cfg_sg_seg_cnt = (dma_buf_size -
4776 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4777 (2 * sizeof(struct sli4_sge))) /
4778 sizeof(struct sli4_sge);
4779 phba->cfg_sg_dma_buf_size = dma_buf_size;
3772a991 4780
da0436e9
JS		 4781 /* Initialize buffer queue management fields */
4782 hbq_count = lpfc_sli_hbq_count();
4783 for (i = 0; i < hbq_count; ++i)
4784 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4785 INIT_LIST_HEAD(&phba->rb_pend_list);
4786 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4787 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
3772a991 4788
da0436e9
JS		 4789 /*
4790 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4791 */
4792 /* Initialize the Abort scsi buffer list used by driver */
4793 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4794 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4795 /* This abort list used by worker thread */
4796 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
3772a991 4797
da0436e9 4798 /*
6d368e53 4799 * Initialize driver internal slow-path work queues
da0436e9 4800 */
3772a991 4801
da0436e9
JS		 4802 /* Driver internel slow-path CQ Event pool */
4803 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4804 /* Response IOCB work queue list */
45ed1190 4805 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
da0436e9
JS		 4806 /* Asynchronous event CQ Event work queue list */
4807 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4808 /* Fast-path XRI aborted CQ Event work queue list */
4809 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4810 /* Slow-path XRI aborted CQ Event work queue list */
4811 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4812 /* Receive queue CQ Event work queue list */
4813 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4814
6d368e53
JS		 4815 /* Initialize extent block lists. */
4816 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
4817 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
4818 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
4819 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
4820
da0436e9
JS		 4821 /* Initialize the driver internal SLI layer lists. */
4822 lpfc_sli_setup(phba);
4823 lpfc_sli_queue_setup(phba);
3772a991 4824
da0436e9
JS		 4825 /* Allocate device driver memory */
4826 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4827 if (rc)
4828 return -ENOMEM;
4829
2fcee4bf
JS		 4830 /* IF Type 2 ports get initialized now. */
4831 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4832 LPFC_SLI_INTF_IF_TYPE_2) {
4833 rc = lpfc_pci_function_reset(phba);
4834 if (unlikely(rc))
4835 return -ENODEV;
4836 }
4837
da0436e9
JS		 4838 /* Create the bootstrap mailbox command */
4839 rc = lpfc_create_bootstrap_mbox(phba);
4840 if (unlikely(rc))
4841 goto out_free_mem;
4842
4843 /* Set up the host's endian order with the device. */
4844 rc = lpfc_setup_endian_order(phba);
4845 if (unlikely(rc))
4846 goto out_free_bsmbx;
4847
4848 /* Set up the hba's configuration parameters. */
4849 rc = lpfc_sli4_read_config(phba);
4850 if (unlikely(rc))
4851 goto out_free_bsmbx;
4852
2fcee4bf
JS		 4853 /* IF Type 0 ports get initialized now. */
4854 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4855 LPFC_SLI_INTF_IF_TYPE_0) {
4856 rc = lpfc_pci_function_reset(phba);
4857 if (unlikely(rc))
4858 goto out_free_bsmbx;
4859 }
da0436e9 4860
cb5172ea
JS		 4861 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4862 GFP_KERNEL);
4863 if (!mboxq) {
4864 rc = -ENOMEM;
4865 goto out_free_bsmbx;
4866 }
4867
fedd3b7b 4868 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
cb5172ea
JS		 4869 lpfc_supported_pages(mboxq);
4870 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
fedd3b7b
JS		 4871 if (!rc) {
4872 mqe = &mboxq->u.mqe;
4873 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4874 LPFC_MAX_SUPPORTED_PAGES);
4875 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4876 switch (pn_page[i]) {
4877 case LPFC_SLI4_PARAMETERS:
4878 phba->sli4_hba.pc_sli4_params.supported = 1;
4879 break;
4880 default:
4881 break;
4882 }
4883 }
4884 /* Read the port's SLI4 Parameters capabilities if supported. */
4885 if (phba->sli4_hba.pc_sli4_params.supported)
4886 rc = lpfc_pc_sli4_params_get(phba, mboxq);
4887 if (rc) {
4888 mempool_free(mboxq, phba->mbox_mem_pool);
4889 rc = -EIO;
4890 goto out_free_bsmbx;
cb5172ea
JS		 4891 }
4892 }
fedd3b7b
JS		 4893 /*
4894 * Get sli4 parameters that override parameters from Port capabilities.
6d368e53
JS		 4895 * If this call fails, it isn't critical unless the SLI4 parameters come
4896 * back in conflict.
fedd3b7b 4897 */
6d368e53
JS		 4898 rc = lpfc_get_sli4_parameters(phba, mboxq);
4899 if (rc) {
4900 if (phba->sli4_hba.extents_in_use &&
4901 phba->sli4_hba.rpi_hdrs_in_use) {
4902 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4903 "2999 Unsupported SLI4 Parameters "
4904 "Extents and RPI headers enabled.\n");
4905 goto out_free_bsmbx;
4906 }
4907 }
cb5172ea 4908 mempool_free(mboxq, phba->mbox_mem_pool);
5350d872
JS		 4909 /* Verify all the SLI4 queues */
4910 rc = lpfc_sli4_queue_verify(phba);
da0436e9
JS		 4911 if (rc)
4912 goto out_free_bsmbx;
4913
4914 /* Create driver internal CQE event pool */
4915 rc = lpfc_sli4_cq_event_pool_create(phba);
4916 if (rc)
5350d872 4917 goto out_free_bsmbx;
da0436e9 4918
8a9d2e80
JS		 4919 /* Initialize sgl lists per host */
4920 lpfc_init_sgl_list(phba);
4921
4922 /* Allocate and initialize active sgl array */
da0436e9
JS		 4923 rc = lpfc_init_active_sgl_array(phba);
4924 if (rc) {
4925 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4926 "1430 Failed to initialize sgl list.\n");
8a9d2e80 4927 goto out_destroy_cq_event_pool;
da0436e9 4928 }
da0436e9
JS		 4929 rc = lpfc_sli4_init_rpi_hdrs(phba);
4930 if (rc) {
4931 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4932 "1432 Failed to initialize rpi headers.\n");
4933 goto out_free_active_sgl;
4934 }
4935
a93ff37a 4936 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
0c9ab6f5
JS		 4937 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4938 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4939 GFP_KERNEL);
4940 if (!phba->fcf.fcf_rr_bmask) {
4941 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4942 "2759 Failed allocate memory for FCF round "
4943 "robin failover bmask\n");
0558056c 4944 rc = -ENOMEM;
0c9ab6f5
JS		 4945 goto out_remove_rpi_hdrs;
4946 }
4947
67d12733
JS		 4948 phba->sli4_hba.fcp_eq_hdl =
4949 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4950 phba->cfg_fcp_io_channel), GFP_KERNEL);
4951 if (!phba->sli4_hba.fcp_eq_hdl) {
4952 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4953 "2572 Failed allocate memory for "
4954 "fast-path per-EQ handle array\n");
4955 rc = -ENOMEM;
4956 goto out_free_fcf_rr_bmask;
da0436e9
JS		 4957 }
4958
4959 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
82c3e9ba 4960 phba->cfg_fcp_io_channel), GFP_KERNEL);
da0436e9
JS		 4961 if (!phba->sli4_hba.msix_entries) {
4962 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4963 "2573 Failed allocate memory for msi-x "
4964 "interrupt vector entries\n");
0558056c 4965 rc = -ENOMEM;
da0436e9
JS		 4966 goto out_free_fcp_eq_hdl;
4967 }
4968
912e3acd
JS		 4969 /*
4970 * Enable sr-iov virtual functions if supported and configured
4971 * through the module parameter.
4972 */
4973 if (phba->cfg_sriov_nr_virtfn > 0) {
4974 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4975 phba->cfg_sriov_nr_virtfn);
4976 if (rc) {
4977 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4978 "3020 Requested number of SR-IOV "
4979 "virtual functions (%d) is not "
4980 "supported\n",
4981 phba->cfg_sriov_nr_virtfn);
4982 phba->cfg_sriov_nr_virtfn = 0;
4983 }
4984 }
4985
5248a749 4986 return 0;
da0436e9
JS		 4987
4988out_free_fcp_eq_hdl:
4989 kfree(phba->sli4_hba.fcp_eq_hdl);
0c9ab6f5
JS		 4990out_free_fcf_rr_bmask:
4991 kfree(phba->fcf.fcf_rr_bmask);
da0436e9
JS		 4992out_remove_rpi_hdrs:
4993 lpfc_sli4_remove_rpi_hdrs(phba);
4994out_free_active_sgl:
4995 lpfc_free_active_sgl(phba);
da0436e9
JS		 4996out_destroy_cq_event_pool:
4997 lpfc_sli4_cq_event_pool_destroy(phba);
da0436e9
JS		 4998out_free_bsmbx:
4999 lpfc_destroy_bootstrap_mbox(phba);
5000out_free_mem:
5001 lpfc_mem_free(phba);
5002 return rc;
5003}
5004
5005/**
5006 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5007 * @phba: pointer to lpfc hba data structure.
5008 *
5009 * This routine is invoked to unset the driver internal resources set up
5010 * specific for supporting the SLI-4 HBA device it attached to.
5011 **/
5012static void
5013lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5014{
5015 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5016
da0436e9
JS		 5017 /* Free memory allocated for msi-x interrupt vector entries */
5018 kfree(phba->sli4_hba.msix_entries);
5019
5020 /* Free memory allocated for fast-path work queue handles */
5021 kfree(phba->sli4_hba.fcp_eq_hdl);
5022
5023 /* Free the allocated rpi headers. */
5024 lpfc_sli4_remove_rpi_hdrs(phba);
d11e31dd 5025 lpfc_sli4_remove_rpis(phba);
da0436e9 5026
0c9ab6f5
JS		 5027 /* Free eligible FCF index bmask */
5028 kfree(phba->fcf.fcf_rr_bmask);
5029
da0436e9
JS		 5030 /* Free the ELS sgl list */
5031 lpfc_free_active_sgl(phba);
8a9d2e80 5032 lpfc_free_els_sgl_list(phba);
da0436e9 5033
da0436e9
JS		 5034 /* Free the completion queue EQ event pool */
5035 lpfc_sli4_cq_event_release_all(phba);
5036 lpfc_sli4_cq_event_pool_destroy(phba);
5037
6d368e53
JS		 5038 /* Release resource identifiers. */
5039 lpfc_sli4_dealloc_resource_identifiers(phba);
5040
da0436e9
JS		 5041 /* Free the bsmbx region. */
5042 lpfc_destroy_bootstrap_mbox(phba);
5043
5044 /* Free the SLI Layer memory with SLI4 HBAs */
5045 lpfc_mem_free_all(phba);
5046
5047 /* Free the current connect table */
5048 list_for_each_entry_safe(conn_entry, next_conn_entry,
4d9ab994
JS		 5049 &phba->fcf_conn_rec_list, list) {
5050 list_del_init(&conn_entry->list);
da0436e9 5051 kfree(conn_entry);
4d9ab994 5052 }
da0436e9
JS		 5053
5054 return;
5055}
5056
5057/**
25985edc 5058 * lpfc_init_api_table_setup - Set up init api function jump table
da0436e9
JS		 5059 * @phba: The hba struct for which this call is being executed.
5060 * @dev_grp: The HBA PCI-Device group number.
5061 *
5062 * This routine sets up the device INIT interface API function jump table
5063 * in @phba struct.
5064 *
5065 * Returns: 0 - success, -ENODEV - failure.
5066 **/
5067int
5068lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5069{
84d1b006
JS		 5070 phba->lpfc_hba_init_link = lpfc_hba_init_link;
5071 phba->lpfc_hba_down_link = lpfc_hba_down_link;
7f86059a 5072 phba->lpfc_selective_reset = lpfc_selective_reset;
da0436e9
JS		 5073 switch (dev_grp) {
5074 case LPFC_PCI_DEV_LP:
5075 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5076 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5077 phba->lpfc_stop_port = lpfc_stop_port_s3;
5078 break;
5079 case LPFC_PCI_DEV_OC:
5080 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5081 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5082 phba->lpfc_stop_port = lpfc_stop_port_s4;
5083 break;
5084 default:
5085 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5086 "1431 Invalid HBA PCI-device group: 0x%x\n",
5087 dev_grp);
5088 return -ENODEV;
5089 break;
5090 }
5091 return 0;
5092}
5093
5094/**
5095 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5096 * @phba: pointer to lpfc hba data structure.
5097 *
5098 * This routine is invoked to set up the driver internal resources before the
5099 * device specific resource setup to support the HBA device it attached to.
5100 *
5101 * Return codes
af901ca1 5102 * 0 - successful
da0436e9
JS		 5103 * other values - error
5104 **/
5105static int
5106lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5107{
5108 /*
5109 * Driver resources common to all SLI revisions
5110 */
5111 atomic_set(&phba->fast_event_count, 0);
5112 spin_lock_init(&phba->hbalock);
5113
5114 /* Initialize ndlp management spinlock */
5115 spin_lock_init(&phba->ndlp_lock);
5116
5117 INIT_LIST_HEAD(&phba->port_list);
5118 INIT_LIST_HEAD(&phba->work_list);
5119 init_waitqueue_head(&phba->wait_4_mlo_m_q);
5120
5121 /* Initialize the wait queue head for the kernel thread */
5122 init_waitqueue_head(&phba->work_waitq);
5123
5124 /* Initialize the scsi buffer list used by driver for scsi IO */
5125 spin_lock_init(&phba->scsi_buf_list_lock);
5126 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
5127
5128 /* Initialize the fabric iocb list */
5129 INIT_LIST_HEAD(&phba->fabric_iocb_list);
5130
5131 /* Initialize list to save ELS buffers */
5132 INIT_LIST_HEAD(&phba->elsbuf);
5133
5134 /* Initialize FCF connection rec list */
5135 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5136
5137 return 0;
5138}
5139
5140/**
5141 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5142 * @phba: pointer to lpfc hba data structure.
5143 *
5144 * This routine is invoked to set up the driver internal resources after the
5145 * device specific resource setup to support the HBA device it attached to.
5146 *
5147 * Return codes
af901ca1 5148 * 0 - successful
da0436e9
JS		 5149 * other values - error
5150 **/
5151static int
5152lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5153{
5154 int error;
5155
5156 /* Startup the kernel thread for this host adapter. */
5157 phba->worker_thread = kthread_run(lpfc_do_work, phba,
5158 "lpfc_worker_%d", phba->brd_no);
5159 if (IS_ERR(phba->worker_thread)) {
5160 error = PTR_ERR(phba->worker_thread);
5161 return error;
3772a991
JS		 5162 }
5163
5164 return 0;
5165}
5166
5167/**
5168 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5169 * @phba: pointer to lpfc hba data structure.
5170 *
5171 * This routine is invoked to unset the driver internal resources set up after
5172 * the device specific resource setup for supporting the HBA device it
5173 * attached to.
5174 **/
5175static void
5176lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5177{
5178 /* Stop kernel worker thread */
5179 kthread_stop(phba->worker_thread);
5180}
5181
5182/**
5183 * lpfc_free_iocb_list - Free iocb list.
5184 * @phba: pointer to lpfc hba data structure.
5185 *
5186 * This routine is invoked to free the driver's IOCB list and memory.
5187 **/
5188static void
5189lpfc_free_iocb_list(struct lpfc_hba *phba)
5190{
5191 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5192
5193 spin_lock_irq(&phba->hbalock);
5194 list_for_each_entry_safe(iocbq_entry, iocbq_next,
5195 &phba->lpfc_iocb_list, list) {
5196 list_del(&iocbq_entry->list);
5197 kfree(iocbq_entry);
5198 phba->total_iocbq_bufs--;
98c9ea5c 5199 }
3772a991
JS		 5200 spin_unlock_irq(&phba->hbalock);
5201
5202 return;
5203}
5204
5205/**
5206 * lpfc_init_iocb_list - Allocate and initialize iocb list.
5207 * @phba: pointer to lpfc hba data structure.
5208 *
5209 * This routine is invoked to allocate and initizlize the driver's IOCB
5210 * list and set up the IOCB tag array accordingly.
5211 *
5212 * Return codes
af901ca1 5213 * 0 - successful
3772a991
JS		 5214 * other values - error
5215 **/
5216static int
5217lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5218{
5219 struct lpfc_iocbq *iocbq_entry = NULL;
5220 uint16_t iotag;
5221 int i;
dea3101e 5222
5223 /* Initialize and populate the iocb list per host. */
5224 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
3772a991 5225 for (i = 0; i < iocb_count; i++) {
dd00cc48 5226 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
dea3101e 5227 if (iocbq_entry == NULL) {
5228 printk(KERN_ERR "%s: only allocated %d iocbs of "
5229 "expected %d count. Unloading driver.\n",
cadbd4a5 5230 __func__, i, LPFC_IOCB_LIST_CNT);
dea3101e 5231 goto out_free_iocbq;
5232 }
5233
604a3e30
JB		 5234 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5235 if (iotag == 0) {
3772a991 5236 kfree(iocbq_entry);
604a3e30 5237 printk(KERN_ERR "%s: failed to allocate IOTAG. "
3772a991 5238 "Unloading driver.\n", __func__);
604a3e30
JB		 5239 goto out_free_iocbq;
5240 }
6d368e53 5241 iocbq_entry->sli4_lxritag = NO_XRI;
3772a991 5242 iocbq_entry->sli4_xritag = NO_XRI;
2e0fef85
JS		 5243
5244 spin_lock_irq(&phba->hbalock);
dea3101e 5245 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5246 phba->total_iocbq_bufs++;
2e0fef85 5247 spin_unlock_irq(&phba->hbalock);
dea3101e 5248 }
5249
3772a991 5250 return 0;
dea3101e 5251
3772a991
JS		 5252out_free_iocbq:
5253 lpfc_free_iocb_list(phba);
dea3101e 5254
3772a991
JS		 5255 return -ENOMEM;
5256}
5e9d9b82 5257
3772a991 5258/**
8a9d2e80 5259 * lpfc_free_sgl_list - Free a given sgl list.
da0436e9 5260 * @phba: pointer to lpfc hba data structure.
8a9d2e80 5261 * @sglq_list: pointer to the head of sgl list.
3772a991 5262 *
8a9d2e80 5263 * This routine is invoked to free a give sgl list and memory.
3772a991 5264 **/
8a9d2e80
JS		 5265void
5266lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
3772a991 5267{
da0436e9 5268 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8a9d2e80
JS		 5269
5270 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5271 list_del(&sglq_entry->list);
5272 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5273 kfree(sglq_entry);
5274 }
5275}
5276
5277/**
5278 * lpfc_free_els_sgl_list - Free els sgl list.
5279 * @phba: pointer to lpfc hba data structure.
5280 *
5281 * This routine is invoked to free the driver's els sgl list and memory.
5282 **/
5283static void
5284lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5285{
da0436e9 5286 LIST_HEAD(sglq_list);
dea3101e 5287
8a9d2e80 5288 /* Retrieve all els sgls from driver list */
da0436e9
JS		 5289 spin_lock_irq(&phba->hbalock);
5290 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5291 spin_unlock_irq(&phba->hbalock);
dea3101e 5292
8a9d2e80
JS		 5293 /* Now free the sgl list */
5294 lpfc_free_sgl_list(phba, &sglq_list);
da0436e9 5295}
92d7f7b0 5296
da0436e9
JS		 5297/**
5298 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5299 * @phba: pointer to lpfc hba data structure.
5300 *
5301 * This routine is invoked to allocate the driver's active sgl memory.
5302 * This array will hold the sglq_entry's for active IOs.
5303 **/
5304static int
5305lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5306{
5307 int size;
5308 size = sizeof(struct lpfc_sglq *);
5309 size *= phba->sli4_hba.max_cfg_param.max_xri;
5310
5311 phba->sli4_hba.lpfc_sglq_active_list =
5312 kzalloc(size, GFP_KERNEL);
5313 if (!phba->sli4_hba.lpfc_sglq_active_list)
5314 return -ENOMEM;
5315 return 0;
3772a991
JS		 5316}
5317
5318/**
da0436e9 5319 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
3772a991
JS		 5320 * @phba: pointer to lpfc hba data structure.
5321 *
da0436e9
JS		 5322 * This routine is invoked to walk through the array of active sglq entries
5323 * and free all of the resources.
5324 * This is just a place holder for now.
3772a991
JS		 5325 **/
5326static void
da0436e9 5327lpfc_free_active_sgl(struct lpfc_hba *phba)
3772a991 5328{
da0436e9 5329 kfree(phba->sli4_hba.lpfc_sglq_active_list);
3772a991
JS		 5330}
5331
5332/**
da0436e9 5333 * lpfc_init_sgl_list - Allocate and initialize sgl list.
3772a991
JS		 5334 * @phba: pointer to lpfc hba data structure.
5335 *
da0436e9
JS		 5336 * This routine is invoked to allocate and initizlize the driver's sgl
5337 * list and set up the sgl xritag tag array accordingly.
3772a991 5338 *
3772a991 5339 **/
8a9d2e80 5340static void
da0436e9 5341lpfc_init_sgl_list(struct lpfc_hba *phba)
3772a991 5342{
da0436e9
JS		 5343 /* Initialize and populate the sglq list per host/VF. */
5344 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5345 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5346
8a9d2e80
JS		 5347 /* els xri-sgl book keeping */
5348 phba->sli4_hba.els_xri_cnt = 0;
0ff10d46 5349
8a9d2e80 5350 /* scsi xri-buffer book keeping */
da0436e9 5351 phba->sli4_hba.scsi_xri_cnt = 0;
da0436e9
JS		 5352}
5353
5354/**
5355 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5356 * @phba: pointer to lpfc hba data structure.
5357 *
5358 * This routine is invoked to post rpi header templates to the
88a2cfbb 5359 * port for those SLI4 ports that do not support extents. This routine
da0436e9 5360 * posts a PAGE_SIZE memory region to the port to hold up to
88a2cfbb
JS		 5361 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
5362 * and should be called only when interrupts are disabled.
da0436e9
JS		 5363 *
5364 * Return codes
af901ca1 5365 * 0 - successful
88a2cfbb 5366 * -ERROR - otherwise.
da0436e9
JS		 5367 **/
5368int
5369lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5370{
5371 int rc = 0;
da0436e9
JS		 5372 struct lpfc_rpi_hdr *rpi_hdr;
5373
5374 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
ff78d8f9 5375 if (!phba->sli4_hba.rpi_hdrs_in_use)
6d368e53 5376 return rc;
6d368e53
JS		 5377 if (phba->sli4_hba.extents_in_use)
5378 return -EIO;
da0436e9
JS		 5379
5380 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5381 if (!rpi_hdr) {
5382 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5383 "0391 Error during rpi post operation\n");
5384 lpfc_sli4_remove_rpis(phba);
5385 rc = -ENODEV;
5386 }
5387
5388 return rc;
5389}
5390
5391/**
5392 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5393 * @phba: pointer to lpfc hba data structure.
5394 *
5395 * This routine is invoked to allocate a single 4KB memory region to
5396 * support rpis and stores them in the phba. This single region
5397 * provides support for up to 64 rpis. The region is used globally
5398 * by the device.
5399 *
5400 * Returns:
5401 * A valid rpi hdr on success.
5402 * A NULL pointer on any failure.
5403 **/
5404struct lpfc_rpi_hdr *
5405lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5406{
5407 uint16_t rpi_limit, curr_rpi_range;
5408 struct lpfc_dmabuf *dmabuf;
5409 struct lpfc_rpi_hdr *rpi_hdr;
9589b062 5410 uint32_t rpi_count;
da0436e9 5411
6d368e53
JS		 5412 /*
5413 * If the SLI4 port supports extents, posting the rpi header isn't
5414 * required. Set the expected maximum count and let the actual value
5415 * get set when extents are fully allocated.
5416 */
5417 if (!phba->sli4_hba.rpi_hdrs_in_use)
5418 return NULL;
5419 if (phba->sli4_hba.extents_in_use)
5420 return NULL;
5421
5422 /* The limit on the logical index is just the max_rpi count. */
da0436e9 5423 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
6d368e53 5424 phba->sli4_hba.max_cfg_param.max_rpi - 1;
da0436e9
JS		 5425
5426 spin_lock_irq(&phba->hbalock);
6d368e53
JS		 5427 /*
5428 * Establish the starting RPI in this header block. The starting
5429 * rpi is normalized to a zero base because the physical rpi is
5430 * port based.
5431 */
97f2ecf1 5432 curr_rpi_range = phba->sli4_hba.next_rpi;
da0436e9
JS		 5433 spin_unlock_irq(&phba->hbalock);
5434
5435 /*
5436 * The port has a limited number of rpis. The increment here
5437 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5438 * and to allow the full max_rpi range per port.
5439 */
5440 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
9589b062
JS		 5441 rpi_count = rpi_limit - curr_rpi_range;
5442 else
5443 rpi_count = LPFC_RPI_HDR_COUNT;
da0436e9 5444
6d368e53
JS		 5445 if (!rpi_count)
5446 return NULL;
da0436e9
JS		 5447 /*
5448 * First allocate the protocol header region for the port. The
5449 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5450 */
5451 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5452 if (!dmabuf)
5453 return NULL;
5454
5455 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5456 LPFC_HDR_TEMPLATE_SIZE,
5457 &dmabuf->phys,
5458 GFP_KERNEL);
5459 if (!dmabuf->virt) {
5460 rpi_hdr = NULL;
5461 goto err_free_dmabuf;
5462 }
5463
5464 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5465 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5466 rpi_hdr = NULL;
5467 goto err_free_coherent;
5468 }
5469
5470 /* Save the rpi header data for cleanup later. */
5471 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5472 if (!rpi_hdr)
5473 goto err_free_coherent;
5474
5475 rpi_hdr->dmabuf = dmabuf;
5476 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5477 rpi_hdr->page_count = 1;
5478 spin_lock_irq(&phba->hbalock);
6d368e53
JS		 5479
5480 /* The rpi_hdr stores the logical index only. */
5481 rpi_hdr->start_rpi = curr_rpi_range;
da0436e9
JS		 5482 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5483
5484 /*
6d368e53
JS		 5485 * The next_rpi stores the next logical module-64 rpi value used
5486 * to post physical rpis in subsequent rpi postings.
da0436e9 5487 */
9589b062 5488 phba->sli4_hba.next_rpi += rpi_count;
da0436e9
JS		 5489 spin_unlock_irq(&phba->hbalock);
5490 return rpi_hdr;
5491
5492 err_free_coherent:
5493 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5494 dmabuf->virt, dmabuf->phys);
5495 err_free_dmabuf:
5496 kfree(dmabuf);
5497 return NULL;
5498}
5499
5500/**
5501 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5502 * @phba: pointer to lpfc hba data structure.
5503 *
5504 * This routine is invoked to remove all memory resources allocated
6d368e53
JS		 5505 * to support rpis for SLI4 ports not supporting extents. This routine
5506 * presumes the caller has released all rpis consumed by fabric or port
5507 * logins and is prepared to have the header pages removed.
da0436e9
JS		 5508 **/
5509void
5510lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5511{
5512 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5513
6d368e53
JS		 5514 if (!phba->sli4_hba.rpi_hdrs_in_use)
5515 goto exit;
5516
da0436e9
JS		 5517 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5518 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5519 list_del(&rpi_hdr->list);
5520 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5521 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5522 kfree(rpi_hdr->dmabuf);
5523 kfree(rpi_hdr);
5524 }
6d368e53
JS		 5525 exit:
5526 /* There are no rpis available to the port now. */
5527 phba->sli4_hba.next_rpi = 0;
da0436e9
JS		 5528}
5529
5530/**
5531 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5532 * @pdev: pointer to pci device data structure.
5533 *
5534 * This routine is invoked to allocate the driver hba data structure for an
5535 * HBA device. If the allocation is successful, the phba reference to the
5536 * PCI device data structure is set.
5537 *
5538 * Return codes
af901ca1 5539 * pointer to @phba - successful
da0436e9
JS		 5540 * NULL - error
5541 **/
5542static struct lpfc_hba *
5543lpfc_hba_alloc(struct pci_dev *pdev)
5544{
5545 struct lpfc_hba *phba;
5546
5547 /* Allocate memory for HBA structure */
5548 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5549 if (!phba) {
e34ccdfe 5550 dev_err(&pdev->dev, "failed to allocate hba struct\n");
da0436e9
JS		 5551 return NULL;
5552 }
5553
5554 /* Set reference to PCI device in HBA structure */
5555 phba->pcidev = pdev;
5556
5557 /* Assign an unused board number */
5558 phba->brd_no = lpfc_get_instance();
5559 if (phba->brd_no < 0) {
5560 kfree(phba);
5561 return NULL;
5562 }
5563
4fede78f 5564 spin_lock_init(&phba->ct_ev_lock);
f1c3b0fc
JS		 5565 INIT_LIST_HEAD(&phba->ct_ev_waiters);
5566
da0436e9
JS		 5567 return phba;
5568}
5569
5570/**
5571 * lpfc_hba_free - Free driver hba data structure with a device.
5572 * @phba: pointer to lpfc hba data structure.
5573 *
5574 * This routine is invoked to free the driver hba data structure with an
5575 * HBA device.
5576 **/
5577static void
5578lpfc_hba_free(struct lpfc_hba *phba)
5579{
5580 /* Release the driver assigned board number */
5581 idr_remove(&lpfc_hba_index, phba->brd_no);
5582
2a76a283
JS		 5583 /* Free memory allocated with sli rings */
5584 kfree(phba->sli.ring);
5585 phba->sli.ring = NULL;
5586
da0436e9
JS		 5587 kfree(phba);
5588 return;
5589}
5590
5591/**
5592 * lpfc_create_shost - Create hba physical port with associated scsi host.
5593 * @phba: pointer to lpfc hba data structure.
5594 *
5595 * This routine is invoked to create HBA physical port and associate a SCSI
5596 * host with it.
5597 *
5598 * Return codes
af901ca1 5599 * 0 - successful
da0436e9
JS		 5600 * other values - error
5601 **/
5602static int
5603lpfc_create_shost(struct lpfc_hba *phba)
5604{
5605 struct lpfc_vport *vport;
5606 struct Scsi_Host *shost;
5607
5608 /* Initialize HBA FC structure */
5609 phba->fc_edtov = FF_DEF_EDTOV;
5610 phba->fc_ratov = FF_DEF_RATOV;
5611 phba->fc_altov = FF_DEF_ALTOV;
5612 phba->fc_arbtov = FF_DEF_ARBTOV;
5613
d7c47992 5614 atomic_set(&phba->sdev_cnt, 0);
da0436e9
JS		 5615 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5616 if (!vport)
5617 return -ENODEV;
5618
5619 shost = lpfc_shost_from_vport(vport);
5620 phba->pport = vport;
5621 lpfc_debugfs_initialize(vport);
5622 /* Put reference to SCSI host to driver's device private data */
5623 pci_set_drvdata(phba->pcidev, shost);
2e0fef85 5624
3772a991
JS		 5625 return 0;
5626}
db2378e0 5627
3772a991
JS		 5628/**
5629 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5630 * @phba: pointer to lpfc hba data structure.
5631 *
5632 * This routine is invoked to destroy HBA physical port and the associated
5633 * SCSI host.
5634 **/
5635static void
5636lpfc_destroy_shost(struct lpfc_hba *phba)
5637{
5638 struct lpfc_vport *vport = phba->pport;
5639
5640 /* Destroy physical port that associated with the SCSI host */
5641 destroy_port(vport);
5642
5643 return;
5644}
5645
5646/**
5647 * lpfc_setup_bg - Setup Block guard structures and debug areas.
5648 * @phba: pointer to lpfc hba data structure.
5649 * @shost: the shost to be used to detect Block guard settings.
5650 *
5651 * This routine sets up the local Block guard protocol settings for @shost.
5652 * This routine also allocates memory for debugging bg buffers.
5653 **/
5654static void
5655lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5656{
bbeb79b9
JS		 5657 uint32_t old_mask;
5658 uint32_t old_guard;
5659
3772a991
JS		 5660 int pagecnt = 10;
5661 if (lpfc_prot_mask && lpfc_prot_guard) {
5662 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5663 "1478 Registering BlockGuard with the "
5664 "SCSI layer\n");
bbeb79b9
JS		 5665
5666 old_mask = lpfc_prot_mask;
5667 old_guard = lpfc_prot_guard;
5668
5669 /* Only allow supported values */
5670 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
5671 SHOST_DIX_TYPE0_PROTECTION |
5672 SHOST_DIX_TYPE1_PROTECTION);
5673 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
5674
5675 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
5676 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
5677 lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
5678
5679 if (lpfc_prot_mask && lpfc_prot_guard) {
5680 if ((old_mask != lpfc_prot_mask) ||
5681 (old_guard != lpfc_prot_guard))
5682 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5683 "1475 Registering BlockGuard with the "
5684 "SCSI layer: mask %d guard %d\n",
5685 lpfc_prot_mask, lpfc_prot_guard);
5686
5687 scsi_host_set_prot(shost, lpfc_prot_mask);
5688 scsi_host_set_guard(shost, lpfc_prot_guard);
5689 } else
5690 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5691 "1479 Not Registering BlockGuard with the SCSI "
5692 "layer, Bad protection parameters: %d %d\n",
5693 old_mask, old_guard);
3772a991 5694 }
bbeb79b9 5695
3772a991
JS		 5696 if (!_dump_buf_data) {
5697 while (pagecnt) {
5698 spin_lock_init(&_dump_buf_lock);
5699 _dump_buf_data =
5700 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5701 if (_dump_buf_data) {
6a9c52cf
JS		 5702 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5703 "9043 BLKGRD: allocated %d pages for "
3772a991
JS		 5704 "_dump_buf_data at 0x%p\n",
5705 (1 << pagecnt), _dump_buf_data);
5706 _dump_buf_data_order = pagecnt;
5707 memset(_dump_buf_data, 0,
5708 ((1 << PAGE_SHIFT) << pagecnt));
5709 break;
5710 } else
5711 --pagecnt;
5712 }
5713 if (!_dump_buf_data_order)
6a9c52cf
JS		 5714 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5715 "9044 BLKGRD: ERROR unable to allocate "
3772a991
JS		 5716 "memory for hexdump\n");
5717 } else
6a9c52cf
JS		 5718 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5719 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
3772a991
JS		 5720 "\n", _dump_buf_data);
5721 if (!_dump_buf_dif) {
5722 while (pagecnt) {
5723 _dump_buf_dif =
5724 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5725 if (_dump_buf_dif) {
6a9c52cf
JS		 5726 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5727 "9046 BLKGRD: allocated %d pages for "
3772a991
JS		 5728 "_dump_buf_dif at 0x%p\n",
5729 (1 << pagecnt), _dump_buf_dif);
5730 _dump_buf_dif_order = pagecnt;
5731 memset(_dump_buf_dif, 0,
5732 ((1 << PAGE_SHIFT) << pagecnt));
5733 break;
5734 } else
5735 --pagecnt;
5736 }
5737 if (!_dump_buf_dif_order)
6a9c52cf
JS		 5738 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5739 "9047 BLKGRD: ERROR unable to allocate "
3772a991
JS		 5740 "memory for hexdump\n");
5741 } else
6a9c52cf
JS		 5742 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5743 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
3772a991
JS		 5744 _dump_buf_dif);
5745}
5746
5747/**
5748 * lpfc_post_init_setup - Perform necessary device post initialization setup.
5749 * @phba: pointer to lpfc hba data structure.
5750 *
5751 * This routine is invoked to perform all the necessary post initialization
5752 * setup for the device.
5753 **/
5754static void
5755lpfc_post_init_setup(struct lpfc_hba *phba)
5756{
5757 struct Scsi_Host *shost;
5758 struct lpfc_adapter_event_header adapter_event;
5759
5760 /* Get the default values for Model Name and Description */
5761 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5762
5763 /*
5764 * hba setup may have changed the hba_queue_depth so we need to
5765 * adjust the value of can_queue.
5766 */
5767 shost = pci_get_drvdata(phba->pcidev);
5768 shost->can_queue = phba->cfg_hba_queue_depth - 10;
5769 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5770 lpfc_setup_bg(phba, shost);
5771
5772 lpfc_host_attrib_init(shost);
5773
5774 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5775 spin_lock_irq(shost->host_lock);
5776 lpfc_poll_start_timer(phba);
5777 spin_unlock_irq(shost->host_lock);
5778 }
5779
5780 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5781 "0428 Perform SCSI scan\n");
5782 /* Send board arrival event to upper layer */
5783 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5784 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5785 fc_host_post_vendor_event(shost, fc_get_event_number(),
5786 sizeof(adapter_event),
5787 (char *) &adapter_event,
5788 LPFC_NL_VENDOR_ID);
5789 return;
5790}
5791
5792/**
5793 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5794 * @phba: pointer to lpfc hba data structure.
5795 *
5796 * This routine is invoked to set up the PCI device memory space for device
5797 * with SLI-3 interface spec.
5798 *
5799 * Return codes
af901ca1 5800 * 0 - successful
3772a991
JS		 5801 * other values - error
5802 **/
5803static int
5804lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5805{
5806 struct pci_dev *pdev;
5807 unsigned long bar0map_len, bar2map_len;
5808 int i, hbq_count;
5809 void *ptr;
5810 int error = -ENODEV;
5811
5812 /* Obtain PCI device reference */
5813 if (!phba->pcidev)
5814 return error;
5815 else
5816 pdev = phba->pcidev;
5817
5818 /* Set the device DMA mask size */
8e68597d
MR		 5819 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5820 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5821 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5822 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
3772a991 5823 return error;
8e68597d
MR		 5824 }
5825 }
3772a991
JS		 5826
5827 /* Get the bus address of Bar0 and Bar2 and the number of bytes
5828 * required by each mapping.
5829 */
5830 phba->pci_bar0_map = pci_resource_start(pdev, 0);
5831 bar0map_len = pci_resource_len(pdev, 0);
5832
5833 phba->pci_bar2_map = pci_resource_start(pdev, 2);
5834 bar2map_len = pci_resource_len(pdev, 2);
5835
5836 /* Map HBA SLIM to a kernel virtual address. */
5837 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5838 if (!phba->slim_memmap_p) {
5839 dev_printk(KERN_ERR, &pdev->dev,
5840 "ioremap failed for SLIM memory.\n");
5841 goto out;
5842 }
5843
5844 /* Map HBA Control Registers to a kernel virtual address. */
5845 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5846 if (!phba->ctrl_regs_memmap_p) {
5847 dev_printk(KERN_ERR, &pdev->dev,
5848 "ioremap failed for HBA control registers.\n");
5849 goto out_iounmap_slim;
5850 }
5851
5852 /* Allocate memory for SLI-2 structures */
5853 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5854 SLI2_SLIM_SIZE,
5855 &phba->slim2p.phys,
5856 GFP_KERNEL);
5857 if (!phba->slim2p.virt)
5858 goto out_iounmap;
5859
5860 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5861 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7a470277
JS		 5862 phba->mbox_ext = (phba->slim2p.virt +
5863 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
3772a991
JS		 5864 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5865 phba->IOCBs = (phba->slim2p.virt +
5866 offsetof(struct lpfc_sli2_slim, IOCBs));
5867
5868 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5869 lpfc_sli_hbq_size(),
5870 &phba->hbqslimp.phys,
5871 GFP_KERNEL);
5872 if (!phba->hbqslimp.virt)
5873 goto out_free_slim;
5874
5875 hbq_count = lpfc_sli_hbq_count();
5876 ptr = phba->hbqslimp.virt;
5877 for (i = 0; i < hbq_count; ++i) {
5878 phba->hbqs[i].hbq_virt = ptr;
5879 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5880 ptr += (lpfc_hbq_defs[i]->entry_count *
5881 sizeof(struct lpfc_hbq_entry));
5882 }
5883 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5884 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5885
5886 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5887
5888 INIT_LIST_HEAD(&phba->rb_pend_list);
5889
5890 phba->MBslimaddr = phba->slim_memmap_p;
5891 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5892 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5893 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5894 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5895
5896 return 0;
5897
5898out_free_slim:
5899 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5900 phba->slim2p.virt, phba->slim2p.phys);
5901out_iounmap:
5902 iounmap(phba->ctrl_regs_memmap_p);
5903out_iounmap_slim:
5904 iounmap(phba->slim_memmap_p);
5905out:
5906 return error;
5907}
5908
5909/**
5910 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5911 * @phba: pointer to lpfc hba data structure.
5912 *
5913 * This routine is invoked to unset the PCI device memory space for device
5914 * with SLI-3 interface spec.
5915 **/
5916static void
5917lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5918{
5919 struct pci_dev *pdev;
5920
5921 /* Obtain PCI device reference */
5922 if (!phba->pcidev)
5923 return;
5924 else
5925 pdev = phba->pcidev;
5926
5927 /* Free coherent DMA memory allocated */
5928 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5929 phba->hbqslimp.virt, phba->hbqslimp.phys);
5930 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5931 phba->slim2p.virt, phba->slim2p.phys);
5932
5933 /* I/O memory unmap */
5934 iounmap(phba->ctrl_regs_memmap_p);
5935 iounmap(phba->slim_memmap_p);
5936
5937 return;
5938}
5939
5940/**
da0436e9 5941 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
3772a991
JS		 5942 * @phba: pointer to lpfc hba data structure.
5943 *
da0436e9
JS		 5944 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5945 * done and check status.
3772a991 5946 *
da0436e9 5947 * Return 0 if successful, otherwise -ENODEV.
3772a991 5948 **/
da0436e9
JS		 5949int
5950lpfc_sli4_post_status_check(struct lpfc_hba *phba)
3772a991 5951{
2fcee4bf
JS		 5952 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
5953 struct lpfc_register reg_data;
5954 int i, port_error = 0;
5955 uint32_t if_type;
3772a991 5956
9940b97b
JS		 5957 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
5958 memset(&reg_data, 0, sizeof(reg_data));
2fcee4bf 5959 if (!phba->sli4_hba.PSMPHRregaddr)
da0436e9 5960 return -ENODEV;
3772a991 5961
da0436e9
JS		 5962 /* Wait up to 30 seconds for the SLI Port POST done and ready */
5963 for (i = 0; i < 3000; i++) {
9940b97b
JS		 5964 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
5965 &portsmphr_reg.word0) ||
5966 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
2fcee4bf 5967 /* Port has a fatal POST error, break out */
da0436e9
JS		 5968 port_error = -ENODEV;
5969 break;
5970 }
2fcee4bf
JS		 5971 if (LPFC_POST_STAGE_PORT_READY ==
5972 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
da0436e9 5973 break;
da0436e9 5974 msleep(10);
3772a991
JS		 5975 }
5976
2fcee4bf
JS		 5977 /*
5978 * If there was a port error during POST, then don't proceed with
5979 * other register reads as the data may not be valid. Just exit.
5980 */
5981 if (port_error) {
da0436e9 5982 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2fcee4bf
JS		 5983 "1408 Port Failed POST - portsmphr=0x%x, "
5984 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
5985 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
5986 portsmphr_reg.word0,
5987 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
5988 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
5989 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
5990 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
5991 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
5992 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
5993 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
5994 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
5995 } else {
28baac74 5996 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2fcee4bf
JS		 5997 "2534 Device Info: SLIFamily=0x%x, "
5998 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
5999 "SLIHint_2=0x%x, FT=0x%x\n",
28baac74
JS		 6000 bf_get(lpfc_sli_intf_sli_family,
6001 &phba->sli4_hba.sli_intf),
6002 bf_get(lpfc_sli_intf_slirev,
6003 &phba->sli4_hba.sli_intf),
085c647c
JS		 6004 bf_get(lpfc_sli_intf_if_type,
6005 &phba->sli4_hba.sli_intf),
6006 bf_get(lpfc_sli_intf_sli_hint1,
28baac74 6007 &phba->sli4_hba.sli_intf),
085c647c
JS		 6008 bf_get(lpfc_sli_intf_sli_hint2,
6009 &phba->sli4_hba.sli_intf),
6010 bf_get(lpfc_sli_intf_func_type,
28baac74 6011 &phba->sli4_hba.sli_intf));
2fcee4bf
JS		 6012 /*
6013 * Check for other Port errors during the initialization
6014 * process. Fail the load if the port did not come up
6015 * correctly.
6016 */
6017 if_type = bf_get(lpfc_sli_intf_if_type,
6018 &phba->sli4_hba.sli_intf);
6019 switch (if_type) {
6020 case LPFC_SLI_INTF_IF_TYPE_0:
6021 phba->sli4_hba.ue_mask_lo =
6022 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6023 phba->sli4_hba.ue_mask_hi =
6024 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6025 uerrlo_reg.word0 =
6026 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6027 uerrhi_reg.word0 =
6028 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6029 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6030 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6031 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6032 "1422 Unrecoverable Error "
6033 "Detected during POST "
6034 "uerr_lo_reg=0x%x, "
6035 "uerr_hi_reg=0x%x, "
6036 "ue_mask_lo_reg=0x%x, "
6037 "ue_mask_hi_reg=0x%x\n",
6038 uerrlo_reg.word0,
6039 uerrhi_reg.word0,
6040 phba->sli4_hba.ue_mask_lo,
6041 phba->sli4_hba.ue_mask_hi);
6042 port_error = -ENODEV;
6043 }
6044 break;
6045 case LPFC_SLI_INTF_IF_TYPE_2:
6046 /* Final checks. The port status should be clean. */
9940b97b
JS		 6047 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6048 &reg_data.word0) ||
0558056c
JS		 6049 (bf_get(lpfc_sliport_status_err, &reg_data) &&
6050 !bf_get(lpfc_sliport_status_rn, &reg_data))) {
2fcee4bf
JS		 6051 phba->work_status[0] =
6052 readl(phba->sli4_hba.u.if_type2.
6053 ERR1regaddr);
6054 phba->work_status[1] =
6055 readl(phba->sli4_hba.u.if_type2.
6056 ERR2regaddr);
6057 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8fcb8acd
JS		 6058 "2888 Unrecoverable port error "
6059 "following POST: port status reg "
6060 "0x%x, port_smphr reg 0x%x, "
2fcee4bf
JS		 6061 "error 1=0x%x, error 2=0x%x\n",
6062 reg_data.word0,
6063 portsmphr_reg.word0,
6064 phba->work_status[0],
6065 phba->work_status[1]);
6066 port_error = -ENODEV;
6067 }
6068 break;
6069 case LPFC_SLI_INTF_IF_TYPE_1:
6070 default:
6071 break;
6072 }
28baac74 6073 }
da0436e9
JS		 6074 return port_error;
6075}
3772a991 6076
da0436e9
JS		 6077/**
6078 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6079 * @phba: pointer to lpfc hba data structure.
2fcee4bf 6080 * @if_type: The SLI4 interface type getting configured.
da0436e9
JS		 6081 *
6082 * This routine is invoked to set up SLI4 BAR0 PCI config space register
6083 * memory map.
6084 **/
6085static void
2fcee4bf
JS		 6086lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6087{
6088 switch (if_type) {
6089 case LPFC_SLI_INTF_IF_TYPE_0:
6090 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6091 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6092 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6093 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6094 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6095 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6096 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6097 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6098 phba->sli4_hba.SLIINTFregaddr =
6099 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6100 break;
6101 case LPFC_SLI_INTF_IF_TYPE_2:
6102 phba->sli4_hba.u.if_type2.ERR1regaddr =
88a2cfbb
JS		 6103 phba->sli4_hba.conf_regs_memmap_p +
6104 LPFC_CTL_PORT_ER1_OFFSET;
2fcee4bf 6105 phba->sli4_hba.u.if_type2.ERR2regaddr =
88a2cfbb
JS		 6106 phba->sli4_hba.conf_regs_memmap_p +
6107 LPFC_CTL_PORT_ER2_OFFSET;
2fcee4bf 6108 phba->sli4_hba.u.if_type2.CTRLregaddr =
88a2cfbb
JS		 6109 phba->sli4_hba.conf_regs_memmap_p +
6110 LPFC_CTL_PORT_CTL_OFFSET;
2fcee4bf 6111 phba->sli4_hba.u.if_type2.STATUSregaddr =
88a2cfbb
JS		 6112 phba->sli4_hba.conf_regs_memmap_p +
6113 LPFC_CTL_PORT_STA_OFFSET;
2fcee4bf
JS		 6114 phba->sli4_hba.SLIINTFregaddr =
6115 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6116 phba->sli4_hba.PSMPHRregaddr =
88a2cfbb
JS		 6117 phba->sli4_hba.conf_regs_memmap_p +
6118 LPFC_CTL_PORT_SEM_OFFSET;
2fcee4bf
JS		 6119 phba->sli4_hba.RQDBregaddr =
6120 phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
6121 phba->sli4_hba.WQDBregaddr =
6122 phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
6123 phba->sli4_hba.EQCQDBregaddr =
6124 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6125 phba->sli4_hba.MQDBregaddr =
6126 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6127 phba->sli4_hba.BMBXregaddr =
6128 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6129 break;
6130 case LPFC_SLI_INTF_IF_TYPE_1:
6131 default:
6132 dev_printk(KERN_ERR, &phba->pcidev->dev,
6133 "FATAL - unsupported SLI4 interface type - %d\n",
6134 if_type);
6135 break;
6136 }
da0436e9 6137}
3772a991 6138
da0436e9
JS		 6139/**
6140 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6141 * @phba: pointer to lpfc hba data structure.
6142 *
6143 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6144 * memory map.
6145 **/
6146static void
6147lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6148{
2fcee4bf
JS		 6149 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6150 LPFC_SLIPORT_IF0_SMPHR;
da0436e9 6151 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 6152 LPFC_HST_ISR0;
da0436e9 6153 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 6154 LPFC_HST_IMR0;
da0436e9 6155 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 6156 LPFC_HST_ISCR0;
3772a991
JS		 6157}
6158
6159/**
da0436e9 6160 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
3772a991 6161 * @phba: pointer to lpfc hba data structure.
da0436e9 6162 * @vf: virtual function number
3772a991 6163 *
da0436e9
JS		 6164 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6165 * based on the given viftual function number, @vf.
6166 *
6167 * Return 0 if successful, otherwise -ENODEV.
3772a991 6168 **/
da0436e9
JS		 6169static int
6170lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
3772a991 6171{
da0436e9
JS		 6172 if (vf > LPFC_VIR_FUNC_MAX)
6173 return -ENODEV;
3772a991 6174
da0436e9
JS		 6175 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6176 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
6177 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6178 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
6179 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6180 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6181 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6182 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6183 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6184 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6185 return 0;
3772a991
JS		 6186}
6187
6188/**
da0436e9 6189 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
3772a991
JS		 6190 * @phba: pointer to lpfc hba data structure.
6191 *
da0436e9
JS		 6192 * This routine is invoked to create the bootstrap mailbox
6193 * region consistent with the SLI-4 interface spec. This
6194 * routine allocates all memory necessary to communicate
6195 * mailbox commands to the port and sets up all alignment
6196 * needs. No locks are expected to be held when calling
6197 * this routine.
3772a991
JS		 6198 *
6199 * Return codes
af901ca1 6200 * 0 - successful
d439d286 6201 * -ENOMEM - could not allocated memory.
da0436e9 6202 **/
3772a991 6203static int
da0436e9 6204lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
3772a991 6205{
da0436e9
JS		 6206 uint32_t bmbx_size;
6207 struct lpfc_dmabuf *dmabuf;
6208 struct dma_address *dma_address;
6209 uint32_t pa_addr;
6210 uint64_t phys_addr;
6211
6212 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6213 if (!dmabuf)
6214 return -ENOMEM;
3772a991 6215
da0436e9
JS		 6216 /*
6217 * The bootstrap mailbox region is comprised of 2 parts
6218 * plus an alignment restriction of 16 bytes.
6219 */
6220 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6221 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
6222 bmbx_size,
6223 &dmabuf->phys,
6224 GFP_KERNEL);
6225 if (!dmabuf->virt) {
6226 kfree(dmabuf);
6227 return -ENOMEM;
3772a991 6228 }
da0436e9 6229 memset(dmabuf->virt, 0, bmbx_size);
3772a991 6230
da0436e9
JS		 6231 /*
6232 * Initialize the bootstrap mailbox pointers now so that the register
6233 * operations are simple later. The mailbox dma address is required
6234 * to be 16-byte aligned. Also align the virtual memory as each
6235 * maibox is copied into the bmbx mailbox region before issuing the
6236 * command to the port.
6237 */
6238 phba->sli4_hba.bmbx.dmabuf = dmabuf;
6239 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6240
6241 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6242 LPFC_ALIGN_16_BYTE);
6243 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6244 LPFC_ALIGN_16_BYTE);
6245
6246 /*
6247 * Set the high and low physical addresses now. The SLI4 alignment
6248 * requirement is 16 bytes and the mailbox is posted to the port
6249 * as two 30-bit addresses. The other data is a bit marking whether
6250 * the 30-bit address is the high or low address.
6251 * Upcast bmbx aphys to 64bits so shift instruction compiles
6252 * clean on 32 bit machines.
6253 */
6254 dma_address = &phba->sli4_hba.bmbx.dma_address;
6255 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6256 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6257 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6258 LPFC_BMBX_BIT1_ADDR_HI);
6259
6260 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6261 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6262 LPFC_BMBX_BIT1_ADDR_LO);
6263 return 0;
3772a991
JS		 6264}
6265
6266/**
da0436e9 6267 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
3772a991
JS		 6268 * @phba: pointer to lpfc hba data structure.
6269 *
da0436e9
JS		 6270 * This routine is invoked to teardown the bootstrap mailbox
6271 * region and release all host resources. This routine requires
6272 * the caller to ensure all mailbox commands recovered, no
6273 * additional mailbox comands are sent, and interrupts are disabled
6274 * before calling this routine.
6275 *
6276 **/
3772a991 6277static void
da0436e9 6278lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
3772a991 6279{
da0436e9
JS		 6280 dma_free_coherent(&phba->pcidev->dev,
6281 phba->sli4_hba.bmbx.bmbx_size,
6282 phba->sli4_hba.bmbx.dmabuf->virt,
6283 phba->sli4_hba.bmbx.dmabuf->phys);
6284
6285 kfree(phba->sli4_hba.bmbx.dmabuf);
6286 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
3772a991
JS		 6287}
6288
6289/**
da0436e9 6290 * lpfc_sli4_read_config - Get the config parameters.
3772a991
JS		 6291 * @phba: pointer to lpfc hba data structure.
6292 *
da0436e9
JS		 6293 * This routine is invoked to read the configuration parameters from the HBA.
6294 * The configuration parameters are used to set the base and maximum values
6295 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6296 * allocation for the port.
3772a991
JS		 6297 *
6298 * Return codes
af901ca1 6299 * 0 - successful
25985edc 6300 * -ENOMEM - No available memory
d439d286 6301 * -EIO - The mailbox failed to complete successfully.
3772a991 6302 **/
ff78d8f9 6303int
da0436e9 6304lpfc_sli4_read_config(struct lpfc_hba *phba)
3772a991 6305{
da0436e9
JS		 6306 LPFC_MBOXQ_t *pmb;
6307 struct lpfc_mbx_read_config *rd_config;
912e3acd
JS		 6308 union lpfc_sli4_cfg_shdr *shdr;
6309 uint32_t shdr_status, shdr_add_status;
6310 struct lpfc_mbx_get_func_cfg *get_func_cfg;
6311 struct lpfc_rsrc_desc_fcfcoe *desc;
8aa134a8 6312 char *pdesc_0;
912e3acd 6313 uint32_t desc_count;
8aa134a8 6314 int length, i, rc = 0, rc2;
3772a991 6315
da0436e9
JS		 6316 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6317 if (!pmb) {
6318 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6319 "2011 Unable to allocate memory for issuing "
6320 "SLI_CONFIG_SPECIAL mailbox command\n");
6321 return -ENOMEM;
3772a991
JS		 6322 }
6323
da0436e9 6324 lpfc_read_config(phba, pmb);
3772a991 6325
da0436e9
JS		 6326 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6327 if (rc != MBX_SUCCESS) {
6328 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6329 "2012 Mailbox failed , mbxCmd x%x "
6330 "READ_CONFIG, mbxStatus x%x\n",
6331 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6332 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6333 rc = -EIO;
6334 } else {
6335 rd_config = &pmb->u.mqe.un.rd_config;
ff78d8f9
JS		 6336 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6337 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6338 phba->sli4_hba.lnk_info.lnk_tp =
6339 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6340 phba->sli4_hba.lnk_info.lnk_no =
6341 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6342 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6343 "3081 lnk_type:%d, lnk_numb:%d\n",
6344 phba->sli4_hba.lnk_info.lnk_tp,
6345 phba->sli4_hba.lnk_info.lnk_no);
6346 } else
6347 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6348 "3082 Mailbox (x%x) returned ldv:x0\n",
6349 bf_get(lpfc_mqe_command, &pmb->u.mqe));
6d368e53
JS		 6350 phba->sli4_hba.extents_in_use =
6351 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
da0436e9
JS		 6352 phba->sli4_hba.max_cfg_param.max_xri =
6353 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6354 phba->sli4_hba.max_cfg_param.xri_base =
6355 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6356 phba->sli4_hba.max_cfg_param.max_vpi =
6357 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6358 phba->sli4_hba.max_cfg_param.vpi_base =
6359 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6360 phba->sli4_hba.max_cfg_param.max_rpi =
6361 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6362 phba->sli4_hba.max_cfg_param.rpi_base =
6363 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6364 phba->sli4_hba.max_cfg_param.max_vfi =
6365 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6366 phba->sli4_hba.max_cfg_param.vfi_base =
6367 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6368 phba->sli4_hba.max_cfg_param.max_fcfi =
6369 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
da0436e9
JS		 6370 phba->sli4_hba.max_cfg_param.max_eq =
6371 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6372 phba->sli4_hba.max_cfg_param.max_rq =
6373 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6374 phba->sli4_hba.max_cfg_param.max_wq =
6375 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6376 phba->sli4_hba.max_cfg_param.max_cq =
6377 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6378 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6379 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6380 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6381 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5ffc266e
JS		 6382 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6383 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
da0436e9
JS		 6384 phba->max_vports = phba->max_vpi;
6385 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6d368e53
JS		 6386 "2003 cfg params Extents? %d "
6387 "XRI(B:%d M:%d), "
da0436e9
JS		 6388 "VPI(B:%d M:%d) "
6389 "VFI(B:%d M:%d) "
6390 "RPI(B:%d M:%d) "
6d368e53
JS		 6391 "FCFI(Count:%d)\n",
6392 phba->sli4_hba.extents_in_use,
da0436e9
JS		 6393 phba->sli4_hba.max_cfg_param.xri_base,
6394 phba->sli4_hba.max_cfg_param.max_xri,
6395 phba->sli4_hba.max_cfg_param.vpi_base,
6396 phba->sli4_hba.max_cfg_param.max_vpi,
6397 phba->sli4_hba.max_cfg_param.vfi_base,
6398 phba->sli4_hba.max_cfg_param.max_vfi,
6399 phba->sli4_hba.max_cfg_param.rpi_base,
6400 phba->sli4_hba.max_cfg_param.max_rpi,
da0436e9 6401 phba->sli4_hba.max_cfg_param.max_fcfi);
3772a991 6402 }
912e3acd
JS		 6403
6404 if (rc)
6405 goto read_cfg_out;
da0436e9
JS		 6406
6407 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
b92938b4
JS		 6408 if (phba->cfg_hba_queue_depth >
6409 (phba->sli4_hba.max_cfg_param.max_xri -
6410 lpfc_sli4_get_els_iocb_cnt(phba)))
da0436e9 6411 phba->cfg_hba_queue_depth =
b92938b4
JS		 6412 phba->sli4_hba.max_cfg_param.max_xri -
6413 lpfc_sli4_get_els_iocb_cnt(phba);
912e3acd
JS		 6414
6415 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6416 LPFC_SLI_INTF_IF_TYPE_2)
6417 goto read_cfg_out;
6418
6419 /* get the pf# and vf# for SLI4 if_type 2 port */
6420 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6421 sizeof(struct lpfc_sli4_cfg_mhdr));
6422 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6423 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6424 length, LPFC_SLI4_MBX_EMBED);
6425
8aa134a8 6426 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
912e3acd
JS		 6427 shdr = (union lpfc_sli4_cfg_shdr *)
6428 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6429 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6430 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8aa134a8 6431 if (rc2 || shdr_status || shdr_add_status) {
912e3acd
JS		 6432 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6433 "3026 Mailbox failed , mbxCmd x%x "
6434 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6435 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6436 bf_get(lpfc_mqe_status, &pmb->u.mqe));
912e3acd
JS		 6437 goto read_cfg_out;
6438 }
6439
6440 /* search for fc_fcoe resrouce descriptor */
6441 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6442 desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6443
8aa134a8
JS		 6444 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6445 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6446 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6447 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6448 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6449 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6450 goto read_cfg_out;
6451
912e3acd 6452 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
8aa134a8 6453 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
912e3acd 6454 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
8aa134a8 6455 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
912e3acd
JS		 6456 phba->sli4_hba.iov.pf_number =
6457 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6458 phba->sli4_hba.iov.vf_number =
6459 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6460 break;
6461 }
6462 }
6463
6464 if (i < LPFC_RSRC_DESC_MAX_NUM)
6465 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6466 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6467 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6468 phba->sli4_hba.iov.vf_number);
8aa134a8 6469 else
912e3acd
JS		 6470 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6471 "3028 GET_FUNCTION_CONFIG: failed to find "
6472 "Resrouce Descriptor:x%x\n",
6473 LPFC_RSRC_DESC_TYPE_FCFCOE);
912e3acd
JS		 6474
6475read_cfg_out:
6476 mempool_free(pmb, phba->mbox_mem_pool);
da0436e9 6477 return rc;
3772a991
JS		 6478}
6479
6480/**
2fcee4bf 6481 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
3772a991
JS		 6482 * @phba: pointer to lpfc hba data structure.
6483 *
2fcee4bf
JS		 6484 * This routine is invoked to setup the port-side endian order when
6485 * the port if_type is 0. This routine has no function for other
6486 * if_types.
da0436e9
JS		 6487 *
6488 * Return codes
af901ca1 6489 * 0 - successful
25985edc 6490 * -ENOMEM - No available memory
d439d286 6491 * -EIO - The mailbox failed to complete successfully.
3772a991 6492 **/
da0436e9
JS		 6493static int
6494lpfc_setup_endian_order(struct lpfc_hba *phba)
3772a991 6495{
da0436e9 6496 LPFC_MBOXQ_t *mboxq;
2fcee4bf 6497 uint32_t if_type, rc = 0;
da0436e9
JS		 6498 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6499 HOST_ENDIAN_HIGH_WORD1};
3772a991 6500
2fcee4bf
JS		 6501 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6502 switch (if_type) {
6503 case LPFC_SLI_INTF_IF_TYPE_0:
6504 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6505 GFP_KERNEL);
6506 if (!mboxq) {
6507 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6508 "0492 Unable to allocate memory for "
6509 "issuing SLI_CONFIG_SPECIAL mailbox "
6510 "command\n");
6511 return -ENOMEM;
6512 }
3772a991 6513
2fcee4bf
JS		 6514 /*
6515 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6516 * two words to contain special data values and no other data.
6517 */
6518 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6519 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6520 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6521 if (rc != MBX_SUCCESS) {
6522 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6523 "0493 SLI_CONFIG_SPECIAL mailbox "
6524 "failed with status x%x\n",
6525 rc);
6526 rc = -EIO;
6527 }
6528 mempool_free(mboxq, phba->mbox_mem_pool);
6529 break;
6530 case LPFC_SLI_INTF_IF_TYPE_2:
6531 case LPFC_SLI_INTF_IF_TYPE_1:
6532 default:
6533 break;
da0436e9 6534 }
da0436e9 6535 return rc;
3772a991
JS		 6536}
6537
6538/**
5350d872 6539 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
3772a991
JS		 6540 * @phba: pointer to lpfc hba data structure.
6541 *
5350d872
JS		 6542 * This routine is invoked to check the user settable queue counts for EQs and
6543 * CQs. after this routine is called the counts will be set to valid values that
6544 * adhere to the constraints of the system's interrupt vectors and the port's
6545 * queue resources.
da0436e9
JS		 6546 *
6547 * Return codes
af901ca1 6548 * 0 - successful
25985edc 6549 * -ENOMEM - No available memory
3772a991 6550 **/
da0436e9 6551static int
5350d872 6552lpfc_sli4_queue_verify(struct lpfc_hba *phba)
3772a991 6553{
67d12733 6554 int cfg_fcp_io_channel;
90695ee0
JS		 6555 uint32_t cpu;
6556 uint32_t i = 0;
6557
3772a991 6558
da0436e9 6559 /*
67d12733 6560 * Sanity check for configured queue parameters against the run-time
da0436e9
JS		 6561 * device parameters
6562 */
3772a991 6563
67d12733
JS		 6564 /* Sanity check on HBA EQ parameters */
6565 cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
6566
90695ee0
JS		 6567 /* It doesn't make sense to have more io channels then CPUs */
6568 for_each_online_cpu(cpu) {
6569 i++;
6570 }
6571 if (i < cfg_fcp_io_channel) {
82c3e9ba
JS		 6572 lpfc_printf_log(phba,
6573 KERN_ERR, LOG_INIT,
90695ee0
JS		 6574 "3188 Reducing IO channels to match number of "
6575 "CPUs: from %d to %d\n", cfg_fcp_io_channel, i);
6576 cfg_fcp_io_channel = i;
6577 }
6578
67d12733
JS		 6579 if (cfg_fcp_io_channel >
6580 phba->sli4_hba.max_cfg_param.max_eq) {
82c3e9ba
JS		 6581 if (phba->sli4_hba.max_cfg_param.max_eq <
6582 LPFC_FCP_IO_CHAN_MIN) {
da0436e9
JS		 6583 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6584 "2574 Not enough EQs (%d) from the "
6585 "pci function for supporting FCP "
6586 "EQs (%d)\n",
6587 phba->sli4_hba.max_cfg_param.max_eq,
67d12733 6588 phba->cfg_fcp_io_channel);
da0436e9
JS		 6589 goto out_error;
6590 }
82c3e9ba
JS		 6591 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6592 "2575 Reducing IO channels to match number of "
6593 "available EQs: from %d to %d\n",
6594 cfg_fcp_io_channel,
6595 phba->sli4_hba.max_cfg_param.max_eq);
6596 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq;
da0436e9 6597 }
67d12733
JS		 6598
6599 /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */
6600
da0436e9 6601 /* The actual number of FCP event queues adopted */
67d12733
JS		 6602 phba->cfg_fcp_eq_count = cfg_fcp_io_channel;
6603 phba->cfg_fcp_wq_count = cfg_fcp_io_channel;
6604 phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
3772a991 6605
da0436e9
JS		 6606 /* Get EQ depth from module parameter, fake the default for now */
6607 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6608 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
3772a991 6609
5350d872
JS		 6610 /* Get CQ depth from module parameter, fake the default for now */
6611 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6612 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6613
6614 return 0;
6615out_error:
6616 return -ENOMEM;
6617}
6618
6619/**
6620 * lpfc_sli4_queue_create - Create all the SLI4 queues
6621 * @phba: pointer to lpfc hba data structure.
6622 *
6623 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6624 * operation. For each SLI4 queue type, the parameters such as queue entry
6625 * count (queue depth) shall be taken from the module parameter. For now,
6626 * we just use some constant number as place holder.
6627 *
6628 * Return codes
4907cb7b 6629 * 0 - successful
5350d872
JS		 6630 * -ENOMEM - No availble memory
6631 * -EIO - The mailbox failed to complete successfully.
6632 **/
6633int
6634lpfc_sli4_queue_create(struct lpfc_hba *phba)
6635{
6636 struct lpfc_queue *qdesc;
67d12733 6637 int idx;
5350d872
JS		 6638
6639 /*
67d12733 6640 * Create HBA Record arrays.
5350d872 6641 */
67d12733
JS		 6642 if (!phba->cfg_fcp_io_channel)
6643 return -ERANGE;
5350d872 6644
67d12733
JS		 6645 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6646 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6647 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6648 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6649 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6650 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6651
6652 phba->sli4_hba.hba_eq = kzalloc((sizeof(struct lpfc_queue *) *
6653 phba->cfg_fcp_io_channel), GFP_KERNEL);
6654 if (!phba->sli4_hba.hba_eq) {
6655 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6656 "2576 Failed allocate memory for "
6657 "fast-path EQ record array\n");
6658 goto out_error;
6659 }
6660
6661 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6662 phba->cfg_fcp_io_channel), GFP_KERNEL);
6663 if (!phba->sli4_hba.fcp_cq) {
da0436e9 6664 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
67d12733
JS		 6665 "2577 Failed allocate memory for fast-path "
6666 "CQ record array\n");
6667 goto out_error;
6668 }
6669
6670 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6671 phba->cfg_fcp_io_channel), GFP_KERNEL);
6672 if (!phba->sli4_hba.fcp_wq) {
6673 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6674 "2578 Failed allocate memory for fast-path "
6675 "WQ record array\n");
da0436e9
JS		 6676 goto out_error;
6677 }
da0436e9 6678
5350d872 6679 /*
67d12733
JS		 6680 * Since the first EQ can have multiple CQs associated with it,
6681 * this array is used to quickly see if we have a FCP fast-path
6682 * CQ match.
5350d872 6683 */
67d12733
JS		 6684 phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
6685 phba->cfg_fcp_io_channel), GFP_KERNEL);
6686 if (!phba->sli4_hba.fcp_cq_map) {
6687 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6688 "2545 Failed allocate memory for fast-path "
6689 "CQ map\n");
6690 goto out_error;
da0436e9 6691 }
67d12733
JS		 6692
6693 /*
6694 * Create HBA Event Queues (EQs). The cfg_fcp_io_channel specifies
6695 * how many EQs to create.
6696 */
6697 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6698
6699 /* Create EQs */
da0436e9
JS		 6700 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6701 phba->sli4_hba.eq_ecount);
6702 if (!qdesc) {
6703 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
67d12733
JS		 6704 "0497 Failed allocate EQ (%d)\n", idx);
6705 goto out_error;
da0436e9 6706 }
67d12733
JS		 6707 phba->sli4_hba.hba_eq[idx] = qdesc;
6708
6709 /* Create Fast Path FCP CQs */
6710 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6711 phba->sli4_hba.cq_ecount);
6712 if (!qdesc) {
6713 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6714 "0499 Failed allocate fast-path FCP "
6715 "CQ (%d)\n", idx);
6716 goto out_error;
6717 }
6718 phba->sli4_hba.fcp_cq[idx] = qdesc;
6719
6720 /* Create Fast Path FCP WQs */
6721 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6722 phba->sli4_hba.wq_ecount);
6723 if (!qdesc) {
6724 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6725 "0503 Failed allocate fast-path FCP "
6726 "WQ (%d)\n", idx);
6727 goto out_error;
6728 }
6729 phba->sli4_hba.fcp_wq[idx] = qdesc;
da0436e9
JS		 6730 }
6731
67d12733 6732
da0436e9 6733 /*
67d12733 6734 * Create Slow Path Completion Queues (CQs)
da0436e9
JS		 6735 */
6736
da0436e9
JS		 6737 /* Create slow-path Mailbox Command Complete Queue */
6738 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6739 phba->sli4_hba.cq_ecount);
6740 if (!qdesc) {
6741 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6742 "0500 Failed allocate slow-path mailbox CQ\n");
67d12733 6743 goto out_error;
da0436e9
JS		 6744 }
6745 phba->sli4_hba.mbx_cq = qdesc;
6746
6747 /* Create slow-path ELS Complete Queue */
6748 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6749 phba->sli4_hba.cq_ecount);
6750 if (!qdesc) {
6751 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6752 "0501 Failed allocate slow-path ELS CQ\n");
67d12733 6753 goto out_error;
da0436e9
JS		 6754 }
6755 phba->sli4_hba.els_cq = qdesc;
6756
da0436e9 6757
5350d872 6758 /*
67d12733 6759 * Create Slow Path Work Queues (WQs)
5350d872 6760 */
da0436e9
JS		 6761
6762 /* Create Mailbox Command Queue */
da0436e9
JS		 6763
6764 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
6765 phba->sli4_hba.mq_ecount);
6766 if (!qdesc) {
6767 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6768 "0505 Failed allocate slow-path MQ\n");
67d12733 6769 goto out_error;
da0436e9
JS		 6770 }
6771 phba->sli4_hba.mbx_wq = qdesc;
6772
6773 /*
67d12733 6774 * Create ELS Work Queues
da0436e9 6775 */
da0436e9
JS		 6776
6777 /* Create slow-path ELS Work Queue */
6778 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6779 phba->sli4_hba.wq_ecount);
6780 if (!qdesc) {
6781 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6782 "0504 Failed allocate slow-path ELS WQ\n");
67d12733 6783 goto out_error;
da0436e9
JS		 6784 }
6785 phba->sli4_hba.els_wq = qdesc;
6786
da0436e9
JS		 6787 /*
6788 * Create Receive Queue (RQ)
6789 */
da0436e9
JS		 6790
6791 /* Create Receive Queue for header */
6792 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6793 phba->sli4_hba.rq_ecount);
6794 if (!qdesc) {
6795 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6796 "0506 Failed allocate receive HRQ\n");
67d12733 6797 goto out_error;
da0436e9
JS		 6798 }
6799 phba->sli4_hba.hdr_rq = qdesc;
6800
6801 /* Create Receive Queue for data */
6802 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6803 phba->sli4_hba.rq_ecount);
6804 if (!qdesc) {
6805 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6806 "0507 Failed allocate receive DRQ\n");
67d12733 6807 goto out_error;
da0436e9
JS		 6808 }
6809 phba->sli4_hba.dat_rq = qdesc;
6810
6811 return 0;
6812
da0436e9 6813out_error:
67d12733 6814 lpfc_sli4_queue_destroy(phba);
da0436e9
JS		 6815 return -ENOMEM;
6816}
6817
6818/**
6819 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6820 * @phba: pointer to lpfc hba data structure.
6821 *
6822 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6823 * operation.
6824 *
6825 * Return codes
af901ca1 6826 * 0 - successful
25985edc 6827 * -ENOMEM - No available memory
d439d286 6828 * -EIO - The mailbox failed to complete successfully.
da0436e9 6829 **/
5350d872 6830void
da0436e9
JS		 6831lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
6832{
67d12733
JS		 6833 int idx;
6834
6835 if (phba->sli4_hba.hba_eq != NULL) {
6836 /* Release HBA event queue */
6837 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6838 if (phba->sli4_hba.hba_eq[idx] != NULL) {
6839 lpfc_sli4_queue_free(
6840 phba->sli4_hba.hba_eq[idx]);
6841 phba->sli4_hba.hba_eq[idx] = NULL;
6842 }
6843 }
6844 kfree(phba->sli4_hba.hba_eq);
6845 phba->sli4_hba.hba_eq = NULL;
6846 }
6847
6848 if (phba->sli4_hba.fcp_cq != NULL) {
6849 /* Release FCP completion queue */
6850 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6851 if (phba->sli4_hba.fcp_cq[idx] != NULL) {
6852 lpfc_sli4_queue_free(
6853 phba->sli4_hba.fcp_cq[idx]);
6854 phba->sli4_hba.fcp_cq[idx] = NULL;
6855 }
6856 }
6857 kfree(phba->sli4_hba.fcp_cq);
6858 phba->sli4_hba.fcp_cq = NULL;
6859 }
6860
6861 if (phba->sli4_hba.fcp_wq != NULL) {
6862 /* Release FCP work queue */
6863 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6864 if (phba->sli4_hba.fcp_wq[idx] != NULL) {
6865 lpfc_sli4_queue_free(
6866 phba->sli4_hba.fcp_wq[idx]);
6867 phba->sli4_hba.fcp_wq[idx] = NULL;
6868 }
6869 }
6870 kfree(phba->sli4_hba.fcp_wq);
6871 phba->sli4_hba.fcp_wq = NULL;
6872 }
6873
6874 /* Release FCP CQ mapping array */
6875 if (phba->sli4_hba.fcp_cq_map != NULL) {
6876 kfree(phba->sli4_hba.fcp_cq_map);
6877 phba->sli4_hba.fcp_cq_map = NULL;
6878 }
da0436e9
JS		 6879
6880 /* Release mailbox command work queue */
67d12733
JS		 6881 if (phba->sli4_hba.mbx_wq != NULL) {
6882 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6883 phba->sli4_hba.mbx_wq = NULL;
6884 }
da0436e9
JS		 6885
6886 /* Release ELS work queue */
67d12733
JS		 6887 if (phba->sli4_hba.els_wq != NULL) {
6888 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6889 phba->sli4_hba.els_wq = NULL;
6890 }
da0436e9
JS		 6891
6892 /* Release unsolicited receive queue */
67d12733
JS		 6893 if (phba->sli4_hba.hdr_rq != NULL) {
6894 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6895 phba->sli4_hba.hdr_rq = NULL;
6896 }
6897 if (phba->sli4_hba.dat_rq != NULL) {
6898 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
6899 phba->sli4_hba.dat_rq = NULL;
6900 }
da0436e9 6901
da0436e9 6902 /* Release ELS complete queue */
67d12733
JS		 6903 if (phba->sli4_hba.els_cq != NULL) {
6904 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6905 phba->sli4_hba.els_cq = NULL;
6906 }
da0436e9
JS		 6907
6908 /* Release mailbox command complete queue */
67d12733
JS		 6909 if (phba->sli4_hba.mbx_cq != NULL) {
6910 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6911 phba->sli4_hba.mbx_cq = NULL;
6912 }
da0436e9
JS		 6913
6914 return;
6915}
6916
6917/**
6918 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
6919 * @phba: pointer to lpfc hba data structure.
6920 *
6921 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
6922 * operation.
6923 *
6924 * Return codes
af901ca1 6925 * 0 - successful
25985edc 6926 * -ENOMEM - No available memory
d439d286 6927 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 6928 **/
6929int
6930lpfc_sli4_queue_setup(struct lpfc_hba *phba)
6931{
2a76a283
JS		 6932 struct lpfc_sli *psli = &phba->sli;
6933 struct lpfc_sli_ring *pring;
da0436e9
JS		 6934 int rc = -ENOMEM;
6935 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6936 int fcp_cq_index = 0;
6937
6938 /*
67d12733 6939 * Set up HBA Event Queues (EQs)
da0436e9
JS		 6940 */
6941
67d12733
JS		 6942 /* Set up HBA event queue */
6943 if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
2e90f4b5
JS		 6944 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6945 "3147 Fast-path EQs not allocated\n");
1b51197d 6946 rc = -ENOMEM;
67d12733 6947 goto out_error;
2e90f4b5 6948 }
67d12733
JS		 6949 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
6950 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
da0436e9
JS		 6951 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6952 "0522 Fast-path EQ (%d) not "
6953 "allocated\n", fcp_eqidx);
1b51197d 6954 rc = -ENOMEM;
67d12733 6955 goto out_destroy_hba_eq;
da0436e9 6956 }
67d12733 6957 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
bf8dae83 6958 (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
da0436e9
JS		 6959 if (rc) {
6960 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6961 "0523 Failed setup of fast-path EQ "
6962 "(%d), rc = 0x%x\n", fcp_eqidx, rc);
67d12733 6963 goto out_destroy_hba_eq;
da0436e9
JS		 6964 }
6965 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
67d12733 6966 "2584 HBA EQ setup: "
da0436e9 6967 "queue[%d]-id=%d\n", fcp_eqidx,
67d12733 6968 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
da0436e9
JS		 6969 }
6970
67d12733
JS		 6971 /* Set up fast-path FCP Response Complete Queue */
6972 if (!phba->sli4_hba.fcp_cq) {
6973 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6974 "3148 Fast-path FCP CQ array not "
6975 "allocated\n");
6976 rc = -ENOMEM;
6977 goto out_destroy_hba_eq;
6978 }
6979
6980 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
6981 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6982 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6983 "0526 Fast-path FCP CQ (%d) not "
6984 "allocated\n", fcp_cqidx);
6985 rc = -ENOMEM;
6986 goto out_destroy_fcp_cq;
6987 }
6988 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
6989 phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
6990 if (rc) {
6991 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6992 "0527 Failed setup of fast-path FCP "
6993 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6994 goto out_destroy_fcp_cq;
6995 }
6996
6997 /* Setup fcp_cq_map for fast lookup */
6998 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
6999 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7000
7001 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7002 "2588 FCP CQ setup: cq[%d]-id=%d, "
7003 "parent seq[%d]-id=%d\n",
7004 fcp_cqidx,
7005 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7006 fcp_cqidx,
7007 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7008 }
7009
7010 /* Set up fast-path FCP Work Queue */
7011 if (!phba->sli4_hba.fcp_wq) {
7012 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7013 "3149 Fast-path FCP WQ array not "
7014 "allocated\n");
7015 rc = -ENOMEM;
7016 goto out_destroy_fcp_cq;
7017 }
7018
7019 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7020 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7021 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7022 "0534 Fast-path FCP WQ (%d) not "
7023 "allocated\n", fcp_wqidx);
7024 rc = -ENOMEM;
7025 goto out_destroy_fcp_wq;
7026 }
7027 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7028 phba->sli4_hba.fcp_cq[fcp_wqidx],
7029 LPFC_FCP);
7030 if (rc) {
7031 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7032 "0535 Failed setup of fast-path FCP "
7033 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
7034 goto out_destroy_fcp_wq;
7035 }
7036
7037 /* Bind this WQ to the next FCP ring */
7038 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7039 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7040 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7041
7042 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7043 "2591 FCP WQ setup: wq[%d]-id=%d, "
7044 "parent cq[%d]-id=%d\n",
7045 fcp_wqidx,
7046 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7047 fcp_cq_index,
7048 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7049 }
da0436e9
JS		 7050 /*
7051 * Set up Complete Queues (CQs)
7052 */
7053
7054 /* Set up slow-path MBOX Complete Queue as the first CQ */
7055 if (!phba->sli4_hba.mbx_cq) {
7056 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7057 "0528 Mailbox CQ not allocated\n");
1b51197d 7058 rc = -ENOMEM;
67d12733 7059 goto out_destroy_fcp_wq;
da0436e9 7060 }
67d12733
JS		 7061 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7062 phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
da0436e9
JS		 7063 if (rc) {
7064 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7065 "0529 Failed setup of slow-path mailbox CQ: "
7066 "rc = 0x%x\n", rc);
67d12733 7067 goto out_destroy_fcp_wq;
da0436e9
JS		 7068 }
7069 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7070 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7071 phba->sli4_hba.mbx_cq->queue_id,
67d12733 7072 phba->sli4_hba.hba_eq[0]->queue_id);
da0436e9
JS		 7073
7074 /* Set up slow-path ELS Complete Queue */
7075 if (!phba->sli4_hba.els_cq) {
7076 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7077 "0530 ELS CQ not allocated\n");
1b51197d 7078 rc = -ENOMEM;
da0436e9
JS		 7079 goto out_destroy_mbx_cq;
7080 }
67d12733
JS		 7081 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7082 phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
da0436e9
JS		 7083 if (rc) {
7084 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7085 "0531 Failed setup of slow-path ELS CQ: "
7086 "rc = 0x%x\n", rc);
7087 goto out_destroy_mbx_cq;
7088 }
7089 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7090 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7091 phba->sli4_hba.els_cq->queue_id,
67d12733 7092 phba->sli4_hba.hba_eq[0]->queue_id);
da0436e9
JS		 7093
7094 /*
7095 * Set up all the Work Queues (WQs)
7096 */
7097
7098 /* Set up Mailbox Command Queue */
7099 if (!phba->sli4_hba.mbx_wq) {
7100 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7101 "0538 Slow-path MQ not allocated\n");
1b51197d 7102 rc = -ENOMEM;
67d12733 7103 goto out_destroy_els_cq;
da0436e9
JS		 7104 }
7105 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7106 phba->sli4_hba.mbx_cq, LPFC_MBOX);
7107 if (rc) {
7108 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7109 "0539 Failed setup of slow-path MQ: "
7110 "rc = 0x%x\n", rc);
67d12733 7111 goto out_destroy_els_cq;
da0436e9
JS		 7112 }
7113 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7114 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7115 phba->sli4_hba.mbx_wq->queue_id,
7116 phba->sli4_hba.mbx_cq->queue_id);
7117
7118 /* Set up slow-path ELS Work Queue */
7119 if (!phba->sli4_hba.els_wq) {
7120 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7121 "0536 Slow-path ELS WQ not allocated\n");
1b51197d 7122 rc = -ENOMEM;
da0436e9
JS		 7123 goto out_destroy_mbx_wq;
7124 }
7125 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7126 phba->sli4_hba.els_cq, LPFC_ELS);
7127 if (rc) {
7128 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7129 "0537 Failed setup of slow-path ELS WQ: "
7130 "rc = 0x%x\n", rc);
7131 goto out_destroy_mbx_wq;
7132 }
2a76a283
JS		 7133
7134 /* Bind this WQ to the ELS ring */
7135 pring = &psli->ring[LPFC_ELS_RING];
7136 pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7137 phba->sli4_hba.els_cq->pring = pring;
7138
da0436e9
JS		 7139 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7140 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7141 phba->sli4_hba.els_wq->queue_id,
7142 phba->sli4_hba.els_cq->queue_id);
7143
da0436e9
JS		 7144 /*
7145 * Create Receive Queue (RQ)
7146 */
7147 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7148 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7149 "0540 Receive Queue not allocated\n");
1b51197d 7150 rc = -ENOMEM;
67d12733 7151 goto out_destroy_els_wq;
da0436e9 7152 }
73d91e50
JS		 7153
7154 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7155 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7156
da0436e9 7157 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
4d9ab994 7158 phba->sli4_hba.els_cq, LPFC_USOL);
da0436e9
JS		 7159 if (rc) {
7160 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7161 "0541 Failed setup of Receive Queue: "
7162 "rc = 0x%x\n", rc);
7163 goto out_destroy_fcp_wq;
7164 }
73d91e50 7165
da0436e9
JS		 7166 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7167 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7168 "parent cq-id=%d\n",
7169 phba->sli4_hba.hdr_rq->queue_id,
7170 phba->sli4_hba.dat_rq->queue_id,
4d9ab994 7171 phba->sli4_hba.els_cq->queue_id);
da0436e9
JS		 7172 return 0;
7173
2e90f4b5 7174out_destroy_els_wq:
da0436e9
JS		 7175 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7176out_destroy_mbx_wq:
7177 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
2e90f4b5 7178out_destroy_els_cq:
da0436e9
JS		 7179 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7180out_destroy_mbx_cq:
7181 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
67d12733
JS		 7182out_destroy_fcp_wq:
7183 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7184 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7185out_destroy_fcp_cq:
7186 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7187 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7188out_destroy_hba_eq:
da0436e9 7189 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
67d12733 7190 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
da0436e9
JS		 7191out_error:
7192 return rc;
7193}
7194
7195/**
7196 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7197 * @phba: pointer to lpfc hba data structure.
7198 *
7199 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7200 * operation.
7201 *
7202 * Return codes
af901ca1 7203 * 0 - successful
25985edc 7204 * -ENOMEM - No available memory
d439d286 7205 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 7206 **/
7207void
7208lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7209{
7210 int fcp_qidx;
7211
7212 /* Unset mailbox command work queue */
7213 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7214 /* Unset ELS work queue */
7215 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7216 /* Unset unsolicited receive queue */
7217 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7218 /* Unset FCP work queue */
67d12733
JS		 7219 if (phba->sli4_hba.fcp_wq) {
7220 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7221 fcp_qidx++)
7222 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7223 }
da0436e9
JS		 7224 /* Unset mailbox command complete queue */
7225 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7226 /* Unset ELS complete queue */
7227 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
da0436e9 7228 /* Unset FCP response complete queue */
2e90f4b5 7229 if (phba->sli4_hba.fcp_cq) {
67d12733
JS		 7230 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7231 fcp_qidx++)
2e90f4b5 7232 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
2e90f4b5 7233 }
da0436e9 7234 /* Unset fast-path event queue */
67d12733
JS		 7235 if (phba->sli4_hba.hba_eq) {
7236 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
2e90f4b5 7237 fcp_qidx++)
67d12733 7238 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
2e90f4b5 7239 }
da0436e9
JS		 7240}
7241
7242/**
7243 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7244 * @phba: pointer to lpfc hba data structure.
7245 *
7246 * This routine is invoked to allocate and set up a pool of completion queue
7247 * events. The body of the completion queue event is a completion queue entry
7248 * CQE. For now, this pool is used for the interrupt service routine to queue
7249 * the following HBA completion queue events for the worker thread to process:
7250 * - Mailbox asynchronous events
7251 * - Receive queue completion unsolicited events
7252 * Later, this can be used for all the slow-path events.
7253 *
7254 * Return codes
af901ca1 7255 * 0 - successful
25985edc 7256 * -ENOMEM - No available memory
da0436e9
JS		 7257 **/
7258static int
7259lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7260{
7261 struct lpfc_cq_event *cq_event;
7262 int i;
7263
7264 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7265 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7266 if (!cq_event)
7267 goto out_pool_create_fail;
7268 list_add_tail(&cq_event->list,
7269 &phba->sli4_hba.sp_cqe_event_pool);
7270 }
7271 return 0;
7272
7273out_pool_create_fail:
7274 lpfc_sli4_cq_event_pool_destroy(phba);
7275 return -ENOMEM;
7276}
7277
7278/**
7279 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7280 * @phba: pointer to lpfc hba data structure.
7281 *
7282 * This routine is invoked to free the pool of completion queue events at
7283 * driver unload time. Note that, it is the responsibility of the driver
7284 * cleanup routine to free all the outstanding completion-queue events
7285 * allocated from this pool back into the pool before invoking this routine
7286 * to destroy the pool.
7287 **/
7288static void
7289lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7290{
7291 struct lpfc_cq_event *cq_event, *next_cq_event;
7292
7293 list_for_each_entry_safe(cq_event, next_cq_event,
7294 &phba->sli4_hba.sp_cqe_event_pool, list) {
7295 list_del(&cq_event->list);
7296 kfree(cq_event);
7297 }
7298}
7299
7300/**
7301 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7302 * @phba: pointer to lpfc hba data structure.
7303 *
7304 * This routine is the lock free version of the API invoked to allocate a
7305 * completion-queue event from the free pool.
7306 *
7307 * Return: Pointer to the newly allocated completion-queue event if successful
7308 * NULL otherwise.
7309 **/
7310struct lpfc_cq_event *
7311__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7312{
7313 struct lpfc_cq_event *cq_event = NULL;
7314
7315 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7316 struct lpfc_cq_event, list);
7317 return cq_event;
7318}
7319
7320/**
7321 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7322 * @phba: pointer to lpfc hba data structure.
7323 *
7324 * This routine is the lock version of the API invoked to allocate a
7325 * completion-queue event from the free pool.
7326 *
7327 * Return: Pointer to the newly allocated completion-queue event if successful
7328 * NULL otherwise.
7329 **/
7330struct lpfc_cq_event *
7331lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7332{
7333 struct lpfc_cq_event *cq_event;
7334 unsigned long iflags;
7335
7336 spin_lock_irqsave(&phba->hbalock, iflags);
7337 cq_event = __lpfc_sli4_cq_event_alloc(phba);
7338 spin_unlock_irqrestore(&phba->hbalock, iflags);
7339 return cq_event;
7340}
7341
7342/**
7343 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7344 * @phba: pointer to lpfc hba data structure.
7345 * @cq_event: pointer to the completion queue event to be freed.
7346 *
7347 * This routine is the lock free version of the API invoked to release a
7348 * completion-queue event back into the free pool.
7349 **/
7350void
7351__lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7352 struct lpfc_cq_event *cq_event)
7353{
7354 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7355}
7356
7357/**
7358 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7359 * @phba: pointer to lpfc hba data structure.
7360 * @cq_event: pointer to the completion queue event to be freed.
7361 *
7362 * This routine is the lock version of the API invoked to release a
7363 * completion-queue event back into the free pool.
7364 **/
7365void
7366lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7367 struct lpfc_cq_event *cq_event)
7368{
7369 unsigned long iflags;
7370 spin_lock_irqsave(&phba->hbalock, iflags);
7371 __lpfc_sli4_cq_event_release(phba, cq_event);
7372 spin_unlock_irqrestore(&phba->hbalock, iflags);
7373}
7374
7375/**
7376 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7377 * @phba: pointer to lpfc hba data structure.
7378 *
7379 * This routine is to free all the pending completion-queue events to the
7380 * back into the free pool for device reset.
7381 **/
7382static void
7383lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7384{
7385 LIST_HEAD(cqelist);
7386 struct lpfc_cq_event *cqe;
7387 unsigned long iflags;
7388
7389 /* Retrieve all the pending WCQEs from pending WCQE lists */
7390 spin_lock_irqsave(&phba->hbalock, iflags);
7391 /* Pending FCP XRI abort events */
7392 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
7393 &cqelist);
7394 /* Pending ELS XRI abort events */
7395 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
7396 &cqelist);
7397 /* Pending asynnc events */
7398 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
7399 &cqelist);
7400 spin_unlock_irqrestore(&phba->hbalock, iflags);
7401
7402 while (!list_empty(&cqelist)) {
7403 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
7404 lpfc_sli4_cq_event_release(phba, cqe);
7405 }
7406}
7407
7408/**
7409 * lpfc_pci_function_reset - Reset pci function.
7410 * @phba: pointer to lpfc hba data structure.
7411 *
7412 * This routine is invoked to request a PCI function reset. It will destroys
7413 * all resources assigned to the PCI function which originates this request.
7414 *
7415 * Return codes
af901ca1 7416 * 0 - successful
25985edc 7417 * -ENOMEM - No available memory
d439d286 7418 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 7419 **/
7420int
7421lpfc_pci_function_reset(struct lpfc_hba *phba)
7422{
7423 LPFC_MBOXQ_t *mboxq;
2fcee4bf 7424 uint32_t rc = 0, if_type;
da0436e9 7425 uint32_t shdr_status, shdr_add_status;
2fcee4bf 7426 uint32_t rdy_chk, num_resets = 0, reset_again = 0;
da0436e9 7427 union lpfc_sli4_cfg_shdr *shdr;
2fcee4bf 7428 struct lpfc_register reg_data;
2b81f942 7429 uint16_t devid;
da0436e9 7430
2fcee4bf
JS		 7431 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7432 switch (if_type) {
7433 case LPFC_SLI_INTF_IF_TYPE_0:
7434 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7435 GFP_KERNEL);
7436 if (!mboxq) {
7437 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7438 "0494 Unable to allocate memory for "
7439 "issuing SLI_FUNCTION_RESET mailbox "
7440 "command\n");
7441 return -ENOMEM;
7442 }
da0436e9 7443
2fcee4bf
JS		 7444 /* Setup PCI function reset mailbox-ioctl command */
7445 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7446 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
7447 LPFC_SLI4_MBX_EMBED);
7448 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7449 shdr = (union lpfc_sli4_cfg_shdr *)
7450 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7451 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7452 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7453 &shdr->response);
7454 if (rc != MBX_TIMEOUT)
7455 mempool_free(mboxq, phba->mbox_mem_pool);
7456 if (shdr_status || shdr_add_status || rc) {
7457 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7458 "0495 SLI_FUNCTION_RESET mailbox "
7459 "failed with status x%x add_status x%x,"
7460 " mbx status x%x\n",
7461 shdr_status, shdr_add_status, rc);
7462 rc = -ENXIO;
7463 }
7464 break;
7465 case LPFC_SLI_INTF_IF_TYPE_2:
7466 for (num_resets = 0;
7467 num_resets < MAX_IF_TYPE_2_RESETS;
7468 num_resets++) {
7469 reg_data.word0 = 0;
7470 bf_set(lpfc_sliport_ctrl_end, &reg_data,
7471 LPFC_SLIPORT_LITTLE_ENDIAN);
7472 bf_set(lpfc_sliport_ctrl_ip, &reg_data,
7473 LPFC_SLIPORT_INIT_PORT);
7474 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
7475 CTRLregaddr);
8fcb8acd 7476 /* flush */
2b81f942
JS		 7477 pci_read_config_word(phba->pcidev,
7478 PCI_DEVICE_ID, &devid);
2fcee4bf
JS		 7479 /*
7480 * Poll the Port Status Register and wait for RDY for
7481 * up to 10 seconds. If the port doesn't respond, treat
7482 * it as an error. If the port responds with RN, start
7483 * the loop again.
7484 */
7485 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
73d91e50 7486 msleep(10);
9940b97b
JS		 7487 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7488 STATUSregaddr, &reg_data.word0)) {
7489 rc = -ENODEV;
73d91e50 7490 goto out;
9940b97b 7491 }
6b5151fd 7492 if (bf_get(lpfc_sliport_status_rn, &reg_data))
2fcee4bf 7493 reset_again++;
6b5151fd 7494 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
2fcee4bf 7495 break;
2fcee4bf
JS		 7496 }
7497
7498 /*
7499 * If the port responds to the init request with
7500 * reset needed, delay for a bit and restart the loop.
7501 */
6b5151fd 7502 if (reset_again && (rdy_chk < 1000)) {
2fcee4bf
JS		 7503 msleep(10);
7504 reset_again = 0;
7505 continue;
7506 }
7507
7508 /* Detect any port errors. */
2fcee4bf
JS		 7509 if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
7510 (rdy_chk >= 1000)) {
7511 phba->work_status[0] = readl(
7512 phba->sli4_hba.u.if_type2.ERR1regaddr);
7513 phba->work_status[1] = readl(
7514 phba->sli4_hba.u.if_type2.ERR2regaddr);
7515 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8fcb8acd 7516 "2890 Port error detected during port "
8a9d2e80
JS		 7517 "reset(%d): wait_tmo:%d ms, "
7518 "port status reg 0x%x, "
2fcee4bf 7519 "error 1=0x%x, error 2=0x%x\n",
8a9d2e80
JS		 7520 num_resets, rdy_chk*10,
7521 reg_data.word0,
2fcee4bf
JS		 7522 phba->work_status[0],
7523 phba->work_status[1]);
7524 rc = -ENODEV;
7525 }
7526
7527 /*
7528 * Terminate the outer loop provided the Port indicated
7529 * ready within 10 seconds.
7530 */
7531 if (rdy_chk < 1000)
7532 break;
7533 }
0558056c
JS		 7534 /* delay driver action following IF_TYPE_2 function reset */
7535 msleep(100);
2fcee4bf
JS		 7536 break;
7537 case LPFC_SLI_INTF_IF_TYPE_1:
7538 default:
7539 break;
da0436e9 7540 }
2fcee4bf 7541
73d91e50 7542out:
2fcee4bf
JS		 7543 /* Catch the not-ready port failure after a port reset. */
7544 if (num_resets >= MAX_IF_TYPE_2_RESETS)
7545 rc = -ENODEV;
7546
da0436e9
JS		 7547 return rc;
7548}
7549
7550/**
7551 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
7552 * @phba: pointer to lpfc hba data structure.
7553 * @cnt: number of nop mailbox commands to send.
7554 *
7555 * This routine is invoked to send a number @cnt of NOP mailbox command and
7556 * wait for each command to complete.
7557 *
7558 * Return: the number of NOP mailbox command completed.
7559 **/
7560static int
7561lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
7562{
7563 LPFC_MBOXQ_t *mboxq;
7564 int length, cmdsent;
7565 uint32_t mbox_tmo;
7566 uint32_t rc = 0;
7567 uint32_t shdr_status, shdr_add_status;
7568 union lpfc_sli4_cfg_shdr *shdr;
7569
7570 if (cnt == 0) {
7571 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7572 "2518 Requested to send 0 NOP mailbox cmd\n");
7573 return cnt;
7574 }
7575
7576 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7577 if (!mboxq) {
7578 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7579 "2519 Unable to allocate memory for issuing "
7580 "NOP mailbox command\n");
7581 return 0;
7582 }
7583
7584 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
7585 length = (sizeof(struct lpfc_mbx_nop) -
7586 sizeof(struct lpfc_sli4_cfg_mhdr));
da0436e9 7587
da0436e9 7588 for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
59df3acf
JS		 7589 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7590 LPFC_MBOX_OPCODE_NOP, length,
7591 LPFC_SLI4_MBX_EMBED);
da0436e9
JS		 7592 if (!phba->sli4_hba.intr_enable)
7593 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
a183a15f
JS		 7594 else {
7595 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
da0436e9 7596 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
a183a15f 7597 }
da0436e9
JS		 7598 if (rc == MBX_TIMEOUT)
7599 break;
7600 /* Check return status */
7601 shdr = (union lpfc_sli4_cfg_shdr *)
7602 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7603 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7604 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7605 &shdr->response);
7606 if (shdr_status || shdr_add_status || rc) {
7607 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7608 "2520 NOP mailbox command failed "
7609 "status x%x add_status x%x mbx "
7610 "status x%x\n", shdr_status,
7611 shdr_add_status, rc);
7612 break;
7613 }
7614 }
7615
7616 if (rc != MBX_TIMEOUT)
7617 mempool_free(mboxq, phba->mbox_mem_pool);
7618
7619 return cmdsent;
7620}
7621
da0436e9
JS		 7622/**
7623 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7624 * @phba: pointer to lpfc hba data structure.
7625 *
7626 * This routine is invoked to set up the PCI device memory space for device
7627 * with SLI-4 interface spec.
7628 *
7629 * Return codes
af901ca1 7630 * 0 - successful
da0436e9
JS		 7631 * other values - error
7632 **/
7633static int
7634lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
7635{
7636 struct pci_dev *pdev;
7637 unsigned long bar0map_len, bar1map_len, bar2map_len;
7638 int error = -ENODEV;
2fcee4bf 7639 uint32_t if_type;
da0436e9
JS		 7640
7641 /* Obtain PCI device reference */
7642 if (!phba->pcidev)
7643 return error;
7644 else
7645 pdev = phba->pcidev;
7646
7647 /* Set the device DMA mask size */
8e68597d
MR		 7648 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7649 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7650 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7651 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
da0436e9 7652 return error;
8e68597d
MR		 7653 }
7654 }
da0436e9 7655
2fcee4bf
JS		 7656 /*
7657 * The BARs and register set definitions and offset locations are
7658 * dependent on the if_type.
7659 */
7660 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7661 &phba->sli4_hba.sli_intf.word0)) {
7662 return error;
7663 }
7664
7665 /* There is no SLI3 failback for SLI4 devices. */
7666 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7667 LPFC_SLI_INTF_VALID) {
7668 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7669 "2894 SLI_INTF reg contents invalid "
7670 "sli_intf reg 0x%x\n",
7671 phba->sli4_hba.sli_intf.word0);
7672 return error;
7673 }
7674
7675 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7676 /*
7677 * Get the bus address of SLI4 device Bar regions and the
7678 * number of bytes required by each mapping. The mapping of the
7679 * particular PCI BARs regions is dependent on the type of
7680 * SLI4 device.
da0436e9 7681 */
1dfb5a47
JS		 7682 if (pci_resource_start(pdev, 0)) {
7683 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7684 bar0map_len = pci_resource_len(pdev, 0);
2fcee4bf
JS		 7685
7686 /*
7687 * Map SLI4 PCI Config Space Register base to a kernel virtual
7688 * addr
7689 */
7690 phba->sli4_hba.conf_regs_memmap_p =
7691 ioremap(phba->pci_bar0_map, bar0map_len);
7692 if (!phba->sli4_hba.conf_regs_memmap_p) {
7693 dev_printk(KERN_ERR, &pdev->dev,
7694 "ioremap failed for SLI4 PCI config "
7695 "registers.\n");
7696 goto out;
7697 }
7698 /* Set up BAR0 PCI config space register memory map */
7699 lpfc_sli4_bar0_register_memmap(phba, if_type);
1dfb5a47
JS		 7700 } else {
7701 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7702 bar0map_len = pci_resource_len(pdev, 1);
2fcee4bf
JS		 7703 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7704 dev_printk(KERN_ERR, &pdev->dev,
7705 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7706 goto out;
7707 }
7708 phba->sli4_hba.conf_regs_memmap_p =
da0436e9 7709 ioremap(phba->pci_bar0_map, bar0map_len);
2fcee4bf
JS		 7710 if (!phba->sli4_hba.conf_regs_memmap_p) {
7711 dev_printk(KERN_ERR, &pdev->dev,
7712 "ioremap failed for SLI4 PCI config "
7713 "registers.\n");
7714 goto out;
7715 }
7716 lpfc_sli4_bar0_register_memmap(phba, if_type);
da0436e9
JS		 7717 }
7718
c31098ce
JS		 7719 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7720 (pci_resource_start(pdev, 2))) {
2fcee4bf
JS		 7721 /*
7722 * Map SLI4 if type 0 HBA Control Register base to a kernel
7723 * virtual address and setup the registers.
7724 */
7725 phba->pci_bar1_map = pci_resource_start(pdev, 2);
7726 bar1map_len = pci_resource_len(pdev, 2);
7727 phba->sli4_hba.ctrl_regs_memmap_p =
da0436e9 7728 ioremap(phba->pci_bar1_map, bar1map_len);
2fcee4bf
JS		 7729 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7730 dev_printk(KERN_ERR, &pdev->dev,
da0436e9 7731 "ioremap failed for SLI4 HBA control registers.\n");
2fcee4bf
JS		 7732 goto out_iounmap_conf;
7733 }
7734 lpfc_sli4_bar1_register_memmap(phba);
da0436e9
JS		 7735 }
7736
c31098ce
JS		 7737 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7738 (pci_resource_start(pdev, 4))) {
2fcee4bf
JS		 7739 /*
7740 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7741 * virtual address and setup the registers.
7742 */
7743 phba->pci_bar2_map = pci_resource_start(pdev, 4);
7744 bar2map_len = pci_resource_len(pdev, 4);
7745 phba->sli4_hba.drbl_regs_memmap_p =
da0436e9 7746 ioremap(phba->pci_bar2_map, bar2map_len);
2fcee4bf
JS		 7747 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7748 dev_printk(KERN_ERR, &pdev->dev,
da0436e9 7749 "ioremap failed for SLI4 HBA doorbell registers.\n");
2fcee4bf
JS		 7750 goto out_iounmap_ctrl;
7751 }
7752 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7753 if (error)
7754 goto out_iounmap_all;
da0436e9
JS		 7755 }
7756
da0436e9
JS		 7757 return 0;
7758
7759out_iounmap_all:
7760 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7761out_iounmap_ctrl:
7762 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7763out_iounmap_conf:
7764 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7765out:
7766 return error;
7767}
7768
7769/**
7770 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7771 * @phba: pointer to lpfc hba data structure.
7772 *
7773 * This routine is invoked to unset the PCI device memory space for device
7774 * with SLI-4 interface spec.
7775 **/
7776static void
7777lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
7778{
2e90f4b5
JS		 7779 uint32_t if_type;
7780 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
da0436e9 7781
2e90f4b5
JS		 7782 switch (if_type) {
7783 case LPFC_SLI_INTF_IF_TYPE_0:
7784 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7785 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7786 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7787 break;
7788 case LPFC_SLI_INTF_IF_TYPE_2:
7789 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7790 break;
7791 case LPFC_SLI_INTF_IF_TYPE_1:
7792 default:
7793 dev_printk(KERN_ERR, &phba->pcidev->dev,
7794 "FATAL - unsupported SLI4 interface type - %d\n",
7795 if_type);
7796 break;
7797 }
da0436e9
JS		 7798}
7799
7800/**
7801 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7802 * @phba: pointer to lpfc hba data structure.
7803 *
7804 * This routine is invoked to enable the MSI-X interrupt vectors to device
7805 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7806 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7807 * invoked, enables either all or nothing, depending on the current
7808 * availability of PCI vector resources. The device driver is responsible
7809 * for calling the individual request_irq() to register each MSI-X vector
7810 * with a interrupt handler, which is done in this function. Note that
7811 * later when device is unloading, the driver should always call free_irq()
7812 * on all MSI-X vectors it has done request_irq() on before calling
7813 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7814 * will be left with MSI-X enabled and leaks its vectors.
7815 *
7816 * Return codes
af901ca1 7817 * 0 - successful
da0436e9
JS		 7818 * other values - error
7819 **/
7820static int
7821lpfc_sli_enable_msix(struct lpfc_hba *phba)
7822{
7823 int rc, i;
7824 LPFC_MBOXQ_t *pmb;
7825
7826 /* Set up MSI-X multi-message vectors */
7827 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7828 phba->msix_entries[i].entry = i;
7829
7830 /* Configure MSI-X capability structure */
7831 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
7832 ARRAY_SIZE(phba->msix_entries));
7833 if (rc) {
7834 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7835 "0420 PCI enable MSI-X failed (%d)\n", rc);
7836 goto msi_fail_out;
7837 }
7838 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7839 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7840 "0477 MSI-X entry[%d]: vector=x%x "
7841 "message=%d\n", i,
7842 phba->msix_entries[i].vector,
7843 phba->msix_entries[i].entry);
7844 /*
7845 * Assign MSI-X vectors to interrupt handlers
7846 */
7847
7848 /* vector-0 is associated to slow-path handler */
7849 rc = request_irq(phba->msix_entries[0].vector,
7850 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
7851 LPFC_SP_DRIVER_HANDLER_NAME, phba);
7852 if (rc) {
7853 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7854 "0421 MSI-X slow-path request_irq failed "
7855 "(%d)\n", rc);
7856 goto msi_fail_out;
7857 }
7858
7859 /* vector-1 is associated to fast-path handler */
7860 rc = request_irq(phba->msix_entries[1].vector,
7861 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
7862 LPFC_FP_DRIVER_HANDLER_NAME, phba);
7863
7864 if (rc) {
7865 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7866 "0429 MSI-X fast-path request_irq failed "
7867 "(%d)\n", rc);
7868 goto irq_fail_out;
7869 }
7870
7871 /*
7872 * Configure HBA MSI-X attention conditions to messages
7873 */
7874 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7875
7876 if (!pmb) {
7877 rc = -ENOMEM;
7878 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7879 "0474 Unable to allocate memory for issuing "
7880 "MBOX_CONFIG_MSI command\n");
7881 goto mem_fail_out;
7882 }
7883 rc = lpfc_config_msi(phba, pmb);
7884 if (rc)
7885 goto mbx_fail_out;
7886 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7887 if (rc != MBX_SUCCESS) {
7888 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
7889 "0351 Config MSI mailbox command failed, "
7890 "mbxCmd x%x, mbxStatus x%x\n",
7891 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
7892 goto mbx_fail_out;
7893 }
7894
7895 /* Free memory allocated for mailbox command */
7896 mempool_free(pmb, phba->mbox_mem_pool);
7897 return rc;
7898
7899mbx_fail_out:
7900 /* Free memory allocated for mailbox command */
7901 mempool_free(pmb, phba->mbox_mem_pool);
7902
7903mem_fail_out:
7904 /* free the irq already requested */
7905 free_irq(phba->msix_entries[1].vector, phba);
7906
7907irq_fail_out:
7908 /* free the irq already requested */
7909 free_irq(phba->msix_entries[0].vector, phba);
7910
7911msi_fail_out:
7912 /* Unconfigure MSI-X capability structure */
7913 pci_disable_msix(phba->pcidev);
7914 return rc;
7915}
7916
7917/**
7918 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
7919 * @phba: pointer to lpfc hba data structure.
7920 *
7921 * This routine is invoked to release the MSI-X vectors and then disable the
7922 * MSI-X interrupt mode to device with SLI-3 interface spec.
7923 **/
7924static void
7925lpfc_sli_disable_msix(struct lpfc_hba *phba)
7926{
7927 int i;
7928
7929 /* Free up MSI-X multi-message vectors */
7930 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7931 free_irq(phba->msix_entries[i].vector, phba);
7932 /* Disable MSI-X */
7933 pci_disable_msix(phba->pcidev);
7934
7935 return;
7936}
7937
7938/**
7939 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
7940 * @phba: pointer to lpfc hba data structure.
7941 *
7942 * This routine is invoked to enable the MSI interrupt mode to device with
7943 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
7944 * enable the MSI vector. The device driver is responsible for calling the
7945 * request_irq() to register MSI vector with a interrupt the handler, which
7946 * is done in this function.
7947 *
7948 * Return codes
af901ca1 7949 * 0 - successful
da0436e9
JS		 7950 * other values - error
7951 */
7952static int
7953lpfc_sli_enable_msi(struct lpfc_hba *phba)
7954{
7955 int rc;
7956
7957 rc = pci_enable_msi(phba->pcidev);
7958 if (!rc)
7959 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7960 "0462 PCI enable MSI mode success.\n");
7961 else {
7962 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7963 "0471 PCI enable MSI mode failed (%d)\n", rc);
7964 return rc;
7965 }
7966
7967 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7968 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7969 if (rc) {
7970 pci_disable_msi(phba->pcidev);
7971 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7972 "0478 MSI request_irq failed (%d)\n", rc);
7973 }
7974 return rc;
7975}
7976
7977/**
7978 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
7979 * @phba: pointer to lpfc hba data structure.
7980 *
7981 * This routine is invoked to disable the MSI interrupt mode to device with
7982 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
7983 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7984 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7985 * its vector.
7986 */
7987static void
7988lpfc_sli_disable_msi(struct lpfc_hba *phba)
7989{
7990 free_irq(phba->pcidev->irq, phba);
7991 pci_disable_msi(phba->pcidev);
7992 return;
7993}
7994
7995/**
7996 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
7997 * @phba: pointer to lpfc hba data structure.
7998 *
7999 * This routine is invoked to enable device interrupt and associate driver's
8000 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8001 * spec. Depends on the interrupt mode configured to the driver, the driver
8002 * will try to fallback from the configured interrupt mode to an interrupt
8003 * mode which is supported by the platform, kernel, and device in the order
8004 * of:
8005 * MSI-X -> MSI -> IRQ.
8006 *
8007 * Return codes
af901ca1 8008 * 0 - successful
da0436e9
JS		 8009 * other values - error
8010 **/
8011static uint32_t
8012lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8013{
8014 uint32_t intr_mode = LPFC_INTR_ERROR;
8015 int retval;
8016
8017 if (cfg_mode == 2) {
8018 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8019 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8020 if (!retval) {
8021 /* Now, try to enable MSI-X interrupt mode */
8022 retval = lpfc_sli_enable_msix(phba);
8023 if (!retval) {
8024 /* Indicate initialization to MSI-X mode */
8025 phba->intr_type = MSIX;
8026 intr_mode = 2;
8027 }
8028 }
8029 }
8030
8031 /* Fallback to MSI if MSI-X initialization failed */
8032 if (cfg_mode >= 1 && phba->intr_type == NONE) {
8033 retval = lpfc_sli_enable_msi(phba);
8034 if (!retval) {
8035 /* Indicate initialization to MSI mode */
8036 phba->intr_type = MSI;
8037 intr_mode = 1;
8038 }
8039 }
8040
8041 /* Fallback to INTx if both MSI-X/MSI initalization failed */
8042 if (phba->intr_type == NONE) {
8043 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8044 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8045 if (!retval) {
8046 /* Indicate initialization to INTx mode */
8047 phba->intr_type = INTx;
8048 intr_mode = 0;
8049 }
8050 }
8051 return intr_mode;
8052}
8053
8054/**
8055 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8056 * @phba: pointer to lpfc hba data structure.
8057 *
8058 * This routine is invoked to disable device interrupt and disassociate the
8059 * driver's interrupt handler(s) from interrupt vector(s) to device with
8060 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8061 * release the interrupt vector(s) for the message signaled interrupt.
8062 **/
8063static void
8064lpfc_sli_disable_intr(struct lpfc_hba *phba)
8065{
8066 /* Disable the currently initialized interrupt mode */
8067 if (phba->intr_type == MSIX)
8068 lpfc_sli_disable_msix(phba);
8069 else if (phba->intr_type == MSI)
8070 lpfc_sli_disable_msi(phba);
8071 else if (phba->intr_type == INTx)
8072 free_irq(phba->pcidev->irq, phba);
8073
8074 /* Reset interrupt management states */
8075 phba->intr_type = NONE;
8076 phba->sli.slistat.sli_intr = 0;
8077
8078 return;
8079}
8080
8081/**
8082 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8083 * @phba: pointer to lpfc hba data structure.
8084 *
8085 * This routine is invoked to enable the MSI-X interrupt vectors to device
8086 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
8087 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
8088 * enables either all or nothing, depending on the current availability of
8089 * PCI vector resources. The device driver is responsible for calling the
8090 * individual request_irq() to register each MSI-X vector with a interrupt
8091 * handler, which is done in this function. Note that later when device is
8092 * unloading, the driver should always call free_irq() on all MSI-X vectors
8093 * it has done request_irq() on before calling pci_disable_msix(). Failure
8094 * to do so results in a BUG_ON() and a device will be left with MSI-X
8095 * enabled and leaks its vectors.
8096 *
8097 * Return codes
af901ca1 8098 * 0 - successful
da0436e9
JS		 8099 * other values - error
8100 **/
8101static int
8102lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8103{
75baf696 8104 int vectors, rc, index;
da0436e9
JS		 8105
8106 /* Set up MSI-X multi-message vectors */
82c3e9ba 8107 for (index = 0; index < phba->cfg_fcp_io_channel; index++)
da0436e9
JS		 8108 phba->sli4_hba.msix_entries[index].entry = index;
8109
8110 /* Configure MSI-X capability structure */
82c3e9ba 8111 vectors = phba->cfg_fcp_io_channel;
75baf696 8112enable_msix_vectors:
da0436e9 8113 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
75baf696
JS		 8114 vectors);
8115 if (rc > 1) {
8116 vectors = rc;
8117 goto enable_msix_vectors;
8118 } else if (rc) {
da0436e9
JS		 8119 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8120 "0484 PCI enable MSI-X failed (%d)\n", rc);
8121 goto msi_fail_out;
8122 }
75baf696 8123
da0436e9 8124 /* Log MSI-X vector assignment */
75baf696 8125 for (index = 0; index < vectors; index++)
da0436e9
JS		 8126 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8127 "0489 MSI-X entry[%d]: vector=x%x "
8128 "message=%d\n", index,
8129 phba->sli4_hba.msix_entries[index].vector,
8130 phba->sli4_hba.msix_entries[index].entry);
67d12733 8131
da0436e9
JS		 8132 /*
8133 * Assign MSI-X vectors to interrupt handlers
8134 */
67d12733 8135 for (index = 0; index < vectors; index++) {
4305f183
JS		 8136 memset(&phba->sli4_hba.handler_name[index], 0, 16);
8137 sprintf((char *)&phba->sli4_hba.handler_name[index],
8138 LPFC_DRIVER_HANDLER_NAME"%d", index);
da0436e9 8139
67d12733
JS		 8140 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8141 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
ba20c853 8142 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
da0436e9 8143 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
67d12733 8144 &lpfc_sli4_hba_intr_handler, IRQF_SHARED,
4305f183 8145 (char *)&phba->sli4_hba.handler_name[index],
67d12733 8146 &phba->sli4_hba.fcp_eq_hdl[index]);
da0436e9
JS		 8147 if (rc) {
8148 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8149 "0486 MSI-X fast-path (%d) "
8150 "request_irq failed (%d)\n", index, rc);
8151 goto cfg_fail_out;
8152 }
8153 }
8154
82c3e9ba
JS		 8155 if (vectors != phba->cfg_fcp_io_channel) {
8156 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8157 "3238 Reducing IO channels to match number of "
8158 "MSI-X vectors, requested %d got %d\n",
8159 phba->cfg_fcp_io_channel, vectors);
8160 phba->cfg_fcp_io_channel = vectors;
8161 }
da0436e9
JS		 8162 return rc;
8163
8164cfg_fail_out:
8165 /* free the irq already requested */
67d12733
JS		 8166 for (--index; index >= 0; index--)
8167 free_irq(phba->sli4_hba.msix_entries[index].vector,
8168 &phba->sli4_hba.fcp_eq_hdl[index]);
da0436e9
JS		 8169
8170msi_fail_out:
8171 /* Unconfigure MSI-X capability structure */
8172 pci_disable_msix(phba->pcidev);
8173 return rc;
8174}
8175
8176/**
8177 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
8178 * @phba: pointer to lpfc hba data structure.
8179 *
8180 * This routine is invoked to release the MSI-X vectors and then disable the
8181 * MSI-X interrupt mode to device with SLI-4 interface spec.
8182 **/
8183static void
8184lpfc_sli4_disable_msix(struct lpfc_hba *phba)
8185{
8186 int index;
8187
8188 /* Free up MSI-X multi-message vectors */
82c3e9ba 8189 for (index = 0; index < phba->cfg_fcp_io_channel; index++)
da0436e9 8190 free_irq(phba->sli4_hba.msix_entries[index].vector,
67d12733 8191 &phba->sli4_hba.fcp_eq_hdl[index]);
75baf696 8192
da0436e9
JS		 8193 /* Disable MSI-X */
8194 pci_disable_msix(phba->pcidev);
8195
8196 return;
8197}
8198
8199/**
8200 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
8201 * @phba: pointer to lpfc hba data structure.
8202 *
8203 * This routine is invoked to enable the MSI interrupt mode to device with
8204 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
8205 * to enable the MSI vector. The device driver is responsible for calling
8206 * the request_irq() to register MSI vector with a interrupt the handler,
8207 * which is done in this function.
8208 *
8209 * Return codes
af901ca1 8210 * 0 - successful
da0436e9
JS		 8211 * other values - error
8212 **/
8213static int
8214lpfc_sli4_enable_msi(struct lpfc_hba *phba)
8215{
8216 int rc, index;
8217
8218 rc = pci_enable_msi(phba->pcidev);
8219 if (!rc)
8220 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8221 "0487 PCI enable MSI mode success.\n");
8222 else {
8223 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8224 "0488 PCI enable MSI mode failed (%d)\n", rc);
8225 return rc;
8226 }
8227
8228 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8229 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8230 if (rc) {
8231 pci_disable_msi(phba->pcidev);
8232 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8233 "0490 MSI request_irq failed (%d)\n", rc);
75baf696 8234 return rc;
da0436e9
JS		 8235 }
8236
67d12733 8237 for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
da0436e9
JS		 8238 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8239 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8240 }
8241
75baf696 8242 return 0;
da0436e9
JS		 8243}
8244
8245/**
8246 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
8247 * @phba: pointer to lpfc hba data structure.
8248 *
8249 * This routine is invoked to disable the MSI interrupt mode to device with
8250 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
8251 * done request_irq() on before calling pci_disable_msi(). Failure to do so
8252 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8253 * its vector.
8254 **/
8255static void
8256lpfc_sli4_disable_msi(struct lpfc_hba *phba)
8257{
8258 free_irq(phba->pcidev->irq, phba);
8259 pci_disable_msi(phba->pcidev);
8260 return;
8261}
8262
8263/**
8264 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
8265 * @phba: pointer to lpfc hba data structure.
8266 *
8267 * This routine is invoked to enable device interrupt and associate driver's
8268 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
8269 * interface spec. Depends on the interrupt mode configured to the driver,
8270 * the driver will try to fallback from the configured interrupt mode to an
8271 * interrupt mode which is supported by the platform, kernel, and device in
8272 * the order of:
8273 * MSI-X -> MSI -> IRQ.
8274 *
8275 * Return codes
af901ca1 8276 * 0 - successful
da0436e9
JS		 8277 * other values - error
8278 **/
8279static uint32_t
8280lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8281{
8282 uint32_t intr_mode = LPFC_INTR_ERROR;
8283 int retval, index;
8284
8285 if (cfg_mode == 2) {
8286 /* Preparation before conf_msi mbox cmd */
8287 retval = 0;
8288 if (!retval) {
8289 /* Now, try to enable MSI-X interrupt mode */
8290 retval = lpfc_sli4_enable_msix(phba);
8291 if (!retval) {
8292 /* Indicate initialization to MSI-X mode */
8293 phba->intr_type = MSIX;
8294 intr_mode = 2;
8295 }
8296 }
8297 }
8298
8299 /* Fallback to MSI if MSI-X initialization failed */
8300 if (cfg_mode >= 1 && phba->intr_type == NONE) {
8301 retval = lpfc_sli4_enable_msi(phba);
8302 if (!retval) {
8303 /* Indicate initialization to MSI mode */
8304 phba->intr_type = MSI;
8305 intr_mode = 1;
8306 }
8307 }
8308
8309 /* Fallback to INTx if both MSI-X/MSI initalization failed */
8310 if (phba->intr_type == NONE) {
8311 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8312 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8313 if (!retval) {
8314 /* Indicate initialization to INTx mode */
8315 phba->intr_type = INTx;
8316 intr_mode = 0;
67d12733 8317 for (index = 0; index < phba->cfg_fcp_io_channel;
da0436e9
JS		 8318 index++) {
8319 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8320 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
ba20c853
JS		 8321 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
8322 fcp_eq_in_use, 1);
da0436e9
JS		 8323 }
8324 }
8325 }
8326 return intr_mode;
8327}
8328
8329/**
8330 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
8331 * @phba: pointer to lpfc hba data structure.
8332 *
8333 * This routine is invoked to disable device interrupt and disassociate
8334 * the driver's interrupt handler(s) from interrupt vector(s) to device
8335 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
8336 * will release the interrupt vector(s) for the message signaled interrupt.
8337 **/
8338static void
8339lpfc_sli4_disable_intr(struct lpfc_hba *phba)
8340{
8341 /* Disable the currently initialized interrupt mode */
8342 if (phba->intr_type == MSIX)
8343 lpfc_sli4_disable_msix(phba);
8344 else if (phba->intr_type == MSI)
8345 lpfc_sli4_disable_msi(phba);
8346 else if (phba->intr_type == INTx)
8347 free_irq(phba->pcidev->irq, phba);
8348
8349 /* Reset interrupt management states */
8350 phba->intr_type = NONE;
8351 phba->sli.slistat.sli_intr = 0;
8352
8353 return;
8354}
8355
8356/**
8357 * lpfc_unset_hba - Unset SLI3 hba device initialization
8358 * @phba: pointer to lpfc hba data structure.
8359 *
8360 * This routine is invoked to unset the HBA device initialization steps to
8361 * a device with SLI-3 interface spec.
8362 **/
8363static void
8364lpfc_unset_hba(struct lpfc_hba *phba)
8365{
8366 struct lpfc_vport *vport = phba->pport;
8367 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8368
8369 spin_lock_irq(shost->host_lock);
8370 vport->load_flag |= FC_UNLOADING;
8371 spin_unlock_irq(shost->host_lock);
8372
72859909
JS		 8373 kfree(phba->vpi_bmask);
8374 kfree(phba->vpi_ids);
8375
da0436e9
JS		 8376 lpfc_stop_hba_timers(phba);
8377
8378 phba->pport->work_port_events = 0;
8379
8380 lpfc_sli_hba_down(phba);
8381
8382 lpfc_sli_brdrestart(phba);
8383
8384 lpfc_sli_disable_intr(phba);
8385
8386 return;
8387}
8388
8389/**
8390 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
8391 * @phba: pointer to lpfc hba data structure.
8392 *
8393 * This routine is invoked to unset the HBA device initialization steps to
8394 * a device with SLI-4 interface spec.
8395 **/
8396static void
8397lpfc_sli4_unset_hba(struct lpfc_hba *phba)
8398{
8399 struct lpfc_vport *vport = phba->pport;
8400 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8401
8402 spin_lock_irq(shost->host_lock);
8403 vport->load_flag |= FC_UNLOADING;
8404 spin_unlock_irq(shost->host_lock);
8405
8406 phba->pport->work_port_events = 0;
8407
3677a3a7
JS		 8408 /* Stop the SLI4 device port */
8409 lpfc_stop_port(phba);
da0436e9
JS		 8410
8411 lpfc_sli4_disable_intr(phba);
8412
3677a3a7
JS		 8413 /* Reset SLI4 HBA FCoE function */
8414 lpfc_pci_function_reset(phba);
5350d872 8415 lpfc_sli4_queue_destroy(phba);
3677a3a7 8416
da0436e9
JS		 8417 return;
8418}
8419
5af5eee7
JS		 8420/**
8421 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
8422 * @phba: Pointer to HBA context object.
8423 *
8424 * This function is called in the SLI4 code path to wait for completion
8425 * of device's XRIs exchange busy. It will check the XRI exchange busy
8426 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
8427 * that, it will check the XRI exchange busy on outstanding FCP and ELS
8428 * I/Os every 30 seconds, log error message, and wait forever. Only when
8429 * all XRI exchange busy complete, the driver unload shall proceed with
8430 * invoking the function reset ioctl mailbox command to the CNA and the
8431 * the rest of the driver unload resource release.
8432 **/
8433static void
8434lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
8435{
8436 int wait_time = 0;
8437 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8438 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8439
8440 while (!fcp_xri_cmpl || !els_xri_cmpl) {
8441 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
8442 if (!fcp_xri_cmpl)
8443 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8444 "2877 FCP XRI exchange busy "
8445 "wait time: %d seconds.\n",
8446 wait_time/1000);
8447 if (!els_xri_cmpl)
8448 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8449 "2878 ELS XRI exchange busy "
8450 "wait time: %d seconds.\n",
8451 wait_time/1000);
8452 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
8453 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
8454 } else {
8455 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
8456 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
8457 }
8458 fcp_xri_cmpl =
8459 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8460 els_xri_cmpl =
8461 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8462 }
8463}
8464
da0436e9
JS		 8465/**
8466 * lpfc_sli4_hba_unset - Unset the fcoe hba
8467 * @phba: Pointer to HBA context object.
8468 *
8469 * This function is called in the SLI4 code path to reset the HBA's FCoE
8470 * function. The caller is not required to hold any lock. This routine
8471 * issues PCI function reset mailbox command to reset the FCoE function.
8472 * At the end of the function, it calls lpfc_hba_down_post function to
8473 * free any pending commands.
8474 **/
8475static void
8476lpfc_sli4_hba_unset(struct lpfc_hba *phba)
8477{
8478 int wait_cnt = 0;
8479 LPFC_MBOXQ_t *mboxq;
912e3acd 8480 struct pci_dev *pdev = phba->pcidev;
da0436e9
JS		 8481
8482 lpfc_stop_hba_timers(phba);
8483 phba->sli4_hba.intr_enable = 0;
8484
8485 /*
8486 * Gracefully wait out the potential current outstanding asynchronous
8487 * mailbox command.
8488 */
8489
8490 /* First, block any pending async mailbox command from posted */
8491 spin_lock_irq(&phba->hbalock);
8492 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8493 spin_unlock_irq(&phba->hbalock);
8494 /* Now, trying to wait it out if we can */
8495 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8496 msleep(10);
8497 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
8498 break;
8499 }
8500 /* Forcefully release the outstanding mailbox command if timed out */
8501 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8502 spin_lock_irq(&phba->hbalock);
8503 mboxq = phba->sli.mbox_active;
8504 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8505 __lpfc_mbox_cmpl_put(phba, mboxq);
8506 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8507 phba->sli.mbox_active = NULL;
8508 spin_unlock_irq(&phba->hbalock);
8509 }
8510
5af5eee7
JS		 8511 /* Abort all iocbs associated with the hba */
8512 lpfc_sli_hba_iocb_abort(phba);
8513
8514 /* Wait for completion of device XRI exchange busy */
8515 lpfc_sli4_xri_exchange_busy_wait(phba);
8516
da0436e9
JS		 8517 /* Disable PCI subsystem interrupt */
8518 lpfc_sli4_disable_intr(phba);
8519
912e3acd
JS		 8520 /* Disable SR-IOV if enabled */
8521 if (phba->cfg_sriov_nr_virtfn)
8522 pci_disable_sriov(pdev);
8523
da0436e9
JS		 8524 /* Stop kthread signal shall trigger work_done one more time */
8525 kthread_stop(phba->worker_thread);
8526
3677a3a7
JS		 8527 /* Reset SLI4 HBA FCoE function */
8528 lpfc_pci_function_reset(phba);
5350d872 8529 lpfc_sli4_queue_destroy(phba);
3677a3a7 8530
da0436e9
JS		 8531 /* Stop the SLI4 device port */
8532 phba->pport->work_port_events = 0;
8533}
8534
28baac74
JS		 8535 /**
8536 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
8537 * @phba: Pointer to HBA context object.
8538 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8539 *
8540 * This function is called in the SLI4 code path to read the port's
8541 * sli4 capabilities.
8542 *
8543 * This function may be be called from any context that can block-wait
8544 * for the completion. The expectation is that this routine is called
8545 * typically from probe_one or from the online routine.
8546 **/
8547int
8548lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8549{
8550 int rc;
8551 struct lpfc_mqe *mqe;
8552 struct lpfc_pc_sli4_params *sli4_params;
8553 uint32_t mbox_tmo;
8554
8555 rc = 0;
8556 mqe = &mboxq->u.mqe;
8557
8558 /* Read the port's SLI4 Parameters port capabilities */
fedd3b7b 8559 lpfc_pc_sli4_params(mboxq);
28baac74
JS		 8560 if (!phba->sli4_hba.intr_enable)
8561 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8562 else {
a183a15f 8563 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
28baac74
JS		 8564 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8565 }
8566
8567 if (unlikely(rc))
8568 return 1;
8569
8570 sli4_params = &phba->sli4_hba.pc_sli4_params;
8571 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
8572 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
8573 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
8574 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
8575 &mqe->un.sli4_params);
8576 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
8577 &mqe->un.sli4_params);
8578 sli4_params->proto_types = mqe->un.sli4_params.word3;
8579 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
8580 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
8581 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
8582 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
8583 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
8584 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
8585 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
8586 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
8587 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
8588 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
8589 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
8590 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
8591 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
8592 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
8593 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
8594 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
8595 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
8596 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
8597 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
8598 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
0558056c
JS		 8599
8600 /* Make sure that sge_supp_len can be handled by the driver */
8601 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8602 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8603
28baac74
JS		 8604 return rc;
8605}
8606
fedd3b7b
JS		 8607/**
8608 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
8609 * @phba: Pointer to HBA context object.
8610 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8611 *
8612 * This function is called in the SLI4 code path to read the port's
8613 * sli4 capabilities.
8614 *
8615 * This function may be be called from any context that can block-wait
8616 * for the completion. The expectation is that this routine is called
8617 * typically from probe_one or from the online routine.
8618 **/
8619int
8620lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8621{
8622 int rc;
8623 struct lpfc_mqe *mqe = &mboxq->u.mqe;
8624 struct lpfc_pc_sli4_params *sli4_params;
a183a15f 8625 uint32_t mbox_tmo;
fedd3b7b
JS		 8626 int length;
8627 struct lpfc_sli4_parameters *mbx_sli4_parameters;
8628
6d368e53
JS		 8629 /*
8630 * By default, the driver assumes the SLI4 port requires RPI
8631 * header postings. The SLI4_PARAM response will correct this
8632 * assumption.
8633 */
8634 phba->sli4_hba.rpi_hdrs_in_use = 1;
8635
fedd3b7b
JS		 8636 /* Read the port's SLI4 Config Parameters */
8637 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
8638 sizeof(struct lpfc_sli4_cfg_mhdr));
8639 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8640 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
8641 length, LPFC_SLI4_MBX_EMBED);
8642 if (!phba->sli4_hba.intr_enable)
8643 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
a183a15f
JS		 8644 else {
8645 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
8646 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8647 }
fedd3b7b
JS		 8648 if (unlikely(rc))
8649 return rc;
8650 sli4_params = &phba->sli4_hba.pc_sli4_params;
8651 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
8652 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
8653 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
8654 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
8655 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
8656 mbx_sli4_parameters);
8657 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
8658 mbx_sli4_parameters);
8659 if (bf_get(cfg_phwq, mbx_sli4_parameters))
8660 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
8661 else
8662 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
8663 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
8664 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
8665 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
8666 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
8667 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
8668 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
8669 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
8670 mbx_sli4_parameters);
8671 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
8672 mbx_sli4_parameters);
6d368e53
JS		 8673 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
8674 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
0558056c
JS		 8675
8676 /* Make sure that sge_supp_len can be handled by the driver */
8677 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8678 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8679
fedd3b7b
JS		 8680 return 0;
8681}
8682
da0436e9
JS		 8683/**
8684 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
8685 * @pdev: pointer to PCI device
8686 * @pid: pointer to PCI device identifier
8687 *
8688 * This routine is to be called to attach a device with SLI-3 interface spec
8689 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8690 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8691 * information of the device and driver to see if the driver state that it can
8692 * support this kind of device. If the match is successful, the driver core
8693 * invokes this routine. If this routine determines it can claim the HBA, it
8694 * does all the initialization that it needs to do to handle the HBA properly.
8695 *
8696 * Return code
8697 * 0 - driver can claim the device
8698 * negative value - driver can not claim the device
8699 **/
8700static int __devinit
8701lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
8702{
8703 struct lpfc_hba *phba;
8704 struct lpfc_vport *vport = NULL;
6669f9bb 8705 struct Scsi_Host *shost = NULL;
da0436e9
JS		 8706 int error;
8707 uint32_t cfg_mode, intr_mode;
8708
8709 /* Allocate memory for HBA structure */
8710 phba = lpfc_hba_alloc(pdev);
8711 if (!phba)
8712 return -ENOMEM;
8713
8714 /* Perform generic PCI device enabling operation */
8715 error = lpfc_enable_pci_dev(phba);
079b5c91 8716 if (error)
da0436e9 8717 goto out_free_phba;
da0436e9
JS		 8718
8719 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
8720 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
8721 if (error)
8722 goto out_disable_pci_dev;
8723
8724 /* Set up SLI-3 specific device PCI memory space */
8725 error = lpfc_sli_pci_mem_setup(phba);
8726 if (error) {
8727 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8728 "1402 Failed to set up pci memory space.\n");
8729 goto out_disable_pci_dev;
8730 }
8731
8732 /* Set up phase-1 common device driver resources */
8733 error = lpfc_setup_driver_resource_phase1(phba);
8734 if (error) {
8735 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8736 "1403 Failed to set up driver resource.\n");
8737 goto out_unset_pci_mem_s3;
8738 }
8739
8740 /* Set up SLI-3 specific device driver resources */
8741 error = lpfc_sli_driver_resource_setup(phba);
8742 if (error) {
8743 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8744 "1404 Failed to set up driver resource.\n");
8745 goto out_unset_pci_mem_s3;
8746 }
8747
8748 /* Initialize and populate the iocb list per host */
8749 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
8750 if (error) {
8751 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8752 "1405 Failed to initialize iocb list.\n");
8753 goto out_unset_driver_resource_s3;
8754 }
8755
8756 /* Set up common device driver resources */
8757 error = lpfc_setup_driver_resource_phase2(phba);
8758 if (error) {
8759 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8760 "1406 Failed to set up driver resource.\n");
8761 goto out_free_iocb_list;
8762 }
8763
079b5c91
JS		 8764 /* Get the default values for Model Name and Description */
8765 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
8766
da0436e9
JS		 8767 /* Create SCSI host to the physical port */
8768 error = lpfc_create_shost(phba);
8769 if (error) {
8770 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8771 "1407 Failed to create scsi host.\n");
8772 goto out_unset_driver_resource;
8773 }
8774
8775 /* Configure sysfs attributes */
8776 vport = phba->pport;
8777 error = lpfc_alloc_sysfs_attr(vport);
8778 if (error) {
8779 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8780 "1476 Failed to allocate sysfs attr\n");
8781 goto out_destroy_shost;
8782 }
8783
6669f9bb 8784 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
da0436e9
JS		 8785 /* Now, trying to enable interrupt and bring up the device */
8786 cfg_mode = phba->cfg_use_msi;
8787 while (true) {
8788 /* Put device to a known state before enabling interrupt */
8789 lpfc_stop_port(phba);
8790 /* Configure and enable interrupt */
8791 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
8792 if (intr_mode == LPFC_INTR_ERROR) {
8793 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8794 "0431 Failed to enable interrupt.\n");
8795 error = -ENODEV;
8796 goto out_free_sysfs_attr;
8797 }
8798 /* SLI-3 HBA setup */
8799 if (lpfc_sli_hba_setup(phba)) {
8800 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8801 "1477 Failed to set up hba\n");
8802 error = -ENODEV;
8803 goto out_remove_device;
8804 }
8805
8806 /* Wait 50ms for the interrupts of previous mailbox commands */
8807 msleep(50);
8808 /* Check active interrupts on message signaled interrupts */
8809 if (intr_mode == 0 ||
8810 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
8811 /* Log the current active interrupt mode */
8812 phba->intr_mode = intr_mode;
8813 lpfc_log_intr_mode(phba, intr_mode);
8814 break;
8815 } else {
8816 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8817 "0447 Configure interrupt mode (%d) "
8818 "failed active interrupt test.\n",
8819 intr_mode);
8820 /* Disable the current interrupt mode */
8821 lpfc_sli_disable_intr(phba);
8822 /* Try next level of interrupt mode */
8823 cfg_mode = --intr_mode;
8824 }
8825 }
8826
8827 /* Perform post initialization setup */
8828 lpfc_post_init_setup(phba);
8829
8830 /* Check if there are static vports to be created. */
8831 lpfc_create_static_vport(phba);
8832
8833 return 0;
8834
8835out_remove_device:
8836 lpfc_unset_hba(phba);
8837out_free_sysfs_attr:
8838 lpfc_free_sysfs_attr(vport);
8839out_destroy_shost:
8840 lpfc_destroy_shost(phba);
8841out_unset_driver_resource:
8842 lpfc_unset_driver_resource_phase2(phba);
8843out_free_iocb_list:
8844 lpfc_free_iocb_list(phba);
8845out_unset_driver_resource_s3:
8846 lpfc_sli_driver_resource_unset(phba);
8847out_unset_pci_mem_s3:
8848 lpfc_sli_pci_mem_unset(phba);
8849out_disable_pci_dev:
8850 lpfc_disable_pci_dev(phba);
6669f9bb
JS		 8851 if (shost)
8852 scsi_host_put(shost);
da0436e9
JS		 8853out_free_phba:
8854 lpfc_hba_free(phba);
8855 return error;
8856}
8857
8858/**
8859 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8860 * @pdev: pointer to PCI device
8861 *
8862 * This routine is to be called to disattach a device with SLI-3 interface
8863 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8864 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8865 * device to be removed from the PCI subsystem properly.
8866 **/
8867static void __devexit
8868lpfc_pci_remove_one_s3(struct pci_dev *pdev)
8869{
8870 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8871 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8872 struct lpfc_vport **vports;
8873 struct lpfc_hba *phba = vport->phba;
8874 int i;
8875 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
8876
8877 spin_lock_irq(&phba->hbalock);
8878 vport->load_flag |= FC_UNLOADING;
8879 spin_unlock_irq(&phba->hbalock);
8880
8881 lpfc_free_sysfs_attr(vport);
8882
8883 /* Release all the vports against this physical port */
8884 vports = lpfc_create_vport_work_array(phba);
8885 if (vports != NULL)
587a37f6
JS		 8886 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
8887 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
8888 continue;
da0436e9 8889 fc_vport_terminate(vports[i]->fc_vport);
587a37f6 8890 }
da0436e9
JS		 8891 lpfc_destroy_vport_work_array(phba, vports);
8892
8893 /* Remove FC host and then SCSI host with the physical port */
8894 fc_remove_host(shost);
8895 scsi_remove_host(shost);
8896 lpfc_cleanup(vport);
8897
8898 /*
8899 * Bring down the SLI Layer. This step disable all interrupts,
8900 * clears the rings, discards all mailbox commands, and resets
8901 * the HBA.
8902 */
8903
48e34d0f 8904 /* HBA interrupt will be disabled after this call */
da0436e9
JS		 8905 lpfc_sli_hba_down(phba);
8906 /* Stop kthread signal shall trigger work_done one more time */
8907 kthread_stop(phba->worker_thread);
8908 /* Final cleanup of txcmplq and reset the HBA */
8909 lpfc_sli_brdrestart(phba);
8910
72859909
JS		 8911 kfree(phba->vpi_bmask);
8912 kfree(phba->vpi_ids);
8913
da0436e9
JS		 8914 lpfc_stop_hba_timers(phba);
8915 spin_lock_irq(&phba->hbalock);
8916 list_del_init(&vport->listentry);
8917 spin_unlock_irq(&phba->hbalock);
8918
8919 lpfc_debugfs_terminate(vport);
8920
912e3acd
JS		 8921 /* Disable SR-IOV if enabled */
8922 if (phba->cfg_sriov_nr_virtfn)
8923 pci_disable_sriov(pdev);
8924
da0436e9
JS		 8925 /* Disable interrupt */
8926 lpfc_sli_disable_intr(phba);
8927
8928 pci_set_drvdata(pdev, NULL);
8929 scsi_host_put(shost);
8930
8931 /*
8932 * Call scsi_free before mem_free since scsi bufs are released to their
8933 * corresponding pools here.
8934 */
8935 lpfc_scsi_free(phba);
8936 lpfc_mem_free_all(phba);
8937
8938 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
8939 phba->hbqslimp.virt, phba->hbqslimp.phys);
8940
8941 /* Free resources associated with SLI2 interface */
8942 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
8943 phba->slim2p.virt, phba->slim2p.phys);
8944
8945 /* unmap adapter SLIM and Control Registers */
8946 iounmap(phba->ctrl_regs_memmap_p);
8947 iounmap(phba->slim_memmap_p);
8948
8949 lpfc_hba_free(phba);
8950
8951 pci_release_selected_regions(pdev, bars);
8952 pci_disable_device(pdev);
8953}
8954
8955/**
8956 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
8957 * @pdev: pointer to PCI device
8958 * @msg: power management message
8959 *
8960 * This routine is to be called from the kernel's PCI subsystem to support
8961 * system Power Management (PM) to device with SLI-3 interface spec. When
8962 * PM invokes this method, it quiesces the device by stopping the driver's
8963 * worker thread for the device, turning off device's interrupt and DMA,
8964 * and bring the device offline. Note that as the driver implements the
8965 * minimum PM requirements to a power-aware driver's PM support for the
8966 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8967 * to the suspend() method call will be treated as SUSPEND and the driver will
8968 * fully reinitialize its device during resume() method call, the driver will
8969 * set device to PCI_D3hot state in PCI config space instead of setting it
8970 * according to the @msg provided by the PM.
8971 *
8972 * Return code
8973 * 0 - driver suspended the device
8974 * Error otherwise
8975 **/
8976static int
8977lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
8978{
8979 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8980 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8981
8982 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8983 "0473 PCI device Power Management suspend.\n");
8984
8985 /* Bring down the device */
618a5230 8986 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
da0436e9
JS		 8987 lpfc_offline(phba);
8988 kthread_stop(phba->worker_thread);
8989
8990 /* Disable interrupt from device */
8991 lpfc_sli_disable_intr(phba);
8992
8993 /* Save device state to PCI config space */
8994 pci_save_state(pdev);
8995 pci_set_power_state(pdev, PCI_D3hot);
8996
8997 return 0;
8998}
8999
9000/**
9001 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9002 * @pdev: pointer to PCI device
9003 *
9004 * This routine is to be called from the kernel's PCI subsystem to support
9005 * system Power Management (PM) to device with SLI-3 interface spec. When PM
9006 * invokes this method, it restores the device's PCI config space state and
9007 * fully reinitializes the device and brings it online. Note that as the
9008 * driver implements the minimum PM requirements to a power-aware driver's
9009 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9010 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9011 * driver will fully reinitialize its device during resume() method call,
9012 * the device will be set to PCI_D0 directly in PCI config space before
9013 * restoring the state.
9014 *
9015 * Return code
9016 * 0 - driver suspended the device
9017 * Error otherwise
9018 **/
9019static int
9020lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9021{
9022 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9023 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9024 uint32_t intr_mode;
9025 int error;
9026
9027 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9028 "0452 PCI device Power Management resume.\n");
9029
9030 /* Restore device state from PCI config space */
9031 pci_set_power_state(pdev, PCI_D0);
9032 pci_restore_state(pdev);
0d878419 9033
1dfb5a47
JS		 9034 /*
9035 * As the new kernel behavior of pci_restore_state() API call clears
9036 * device saved_state flag, need to save the restored state again.
9037 */
9038 pci_save_state(pdev);
9039
da0436e9
JS		 9040 if (pdev->is_busmaster)
9041 pci_set_master(pdev);
9042
9043 /* Startup the kernel thread for this host adapter. */
9044 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9045 "lpfc_worker_%d", phba->brd_no);
9046 if (IS_ERR(phba->worker_thread)) {
9047 error = PTR_ERR(phba->worker_thread);
9048 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9049 "0434 PM resume failed to start worker "
9050 "thread: error=x%x.\n", error);
9051 return error;
9052 }
9053
9054 /* Configure and enable interrupt */
9055 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9056 if (intr_mode == LPFC_INTR_ERROR) {
9057 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9058 "0430 PM resume Failed to enable interrupt\n");
9059 return -EIO;
9060 } else
9061 phba->intr_mode = intr_mode;
9062
9063 /* Restart HBA and bring it online */
9064 lpfc_sli_brdrestart(phba);
9065 lpfc_online(phba);
9066
9067 /* Log the current active interrupt mode */
9068 lpfc_log_intr_mode(phba, phba->intr_mode);
9069
9070 return 0;
9071}
9072
891478a2
JS		 9073/**
9074 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9075 * @phba: pointer to lpfc hba data structure.
9076 *
9077 * This routine is called to prepare the SLI3 device for PCI slot recover. It
e2af0d2e 9078 * aborts all the outstanding SCSI I/Os to the pci device.
891478a2
JS		 9079 **/
9080static void
9081lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9082{
e2af0d2e
JS		 9083 struct lpfc_sli *psli = &phba->sli;
9084 struct lpfc_sli_ring *pring;
9085
891478a2
JS		 9086 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9087 "2723 PCI channel I/O abort preparing for recovery\n");
e2af0d2e
JS		 9088
9089 /*
9090 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9091 * and let the SCSI mid-layer to retry them to recover.
9092 */
9093 pring = &psli->ring[psli->fcp_ring];
9094 lpfc_sli_abort_iocb_ring(phba, pring);
891478a2
JS		 9095}
9096
0d878419
JS		 9097/**
9098 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9099 * @phba: pointer to lpfc hba data structure.
9100 *
9101 * This routine is called to prepare the SLI3 device for PCI slot reset. It
9102 * disables the device interrupt and pci device, and aborts the internal FCP
9103 * pending I/Os.
9104 **/
9105static void
9106lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9107{
0d878419 9108 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
891478a2 9109 "2710 PCI channel disable preparing for reset\n");
e2af0d2e 9110
75baf696 9111 /* Block any management I/Os to the device */
618a5230 9112 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
75baf696 9113
e2af0d2e
JS		 9114 /* Block all SCSI devices' I/Os on the host */
9115 lpfc_scsi_dev_block(phba);
9116
9117 /* stop all timers */
9118 lpfc_stop_hba_timers(phba);
9119
0d878419
JS		 9120 /* Disable interrupt and pci device */
9121 lpfc_sli_disable_intr(phba);
9122 pci_disable_device(phba->pcidev);
75baf696 9123
e2af0d2e
JS		 9124 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9125 lpfc_sli_flush_fcp_rings(phba);
0d878419
JS		 9126}
9127
9128/**
9129 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9130 * @phba: pointer to lpfc hba data structure.
9131 *
9132 * This routine is called to prepare the SLI3 device for PCI slot permanently
9133 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9134 * pending I/Os.
9135 **/
9136static void
75baf696 9137lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
0d878419
JS		 9138{
9139 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
891478a2 9140 "2711 PCI channel permanent disable for failure\n");
e2af0d2e
JS		 9141 /* Block all SCSI devices' I/Os on the host */
9142 lpfc_scsi_dev_block(phba);
9143
9144 /* stop all timers */
9145 lpfc_stop_hba_timers(phba);
9146
0d878419
JS		 9147 /* Clean up all driver's outstanding SCSI I/Os */
9148 lpfc_sli_flush_fcp_rings(phba);
9149}
9150
da0436e9
JS		 9151/**
9152 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9153 * @pdev: pointer to PCI device.
9154 * @state: the current PCI connection state.
9155 *
9156 * This routine is called from the PCI subsystem for I/O error handling to
9157 * device with SLI-3 interface spec. This function is called by the PCI
9158 * subsystem after a PCI bus error affecting this device has been detected.
9159 * When this function is invoked, it will need to stop all the I/Os and
9160 * interrupt(s) to the device. Once that is done, it will return
9161 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9162 * as desired.
9163 *
9164 * Return codes
0d878419 9165 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
da0436e9
JS		 9166 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9167 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9168 **/
9169static pci_ers_result_t
9170lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9171{
9172 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9173 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
da0436e9 9174
0d878419
JS		 9175 switch (state) {
9176 case pci_channel_io_normal:
891478a2
JS		 9177 /* Non-fatal error, prepare for recovery */
9178 lpfc_sli_prep_dev_for_recover(phba);
0d878419
JS		 9179 return PCI_ERS_RESULT_CAN_RECOVER;
9180 case pci_channel_io_frozen:
9181 /* Fatal error, prepare for slot reset */
9182 lpfc_sli_prep_dev_for_reset(phba);
9183 return PCI_ERS_RESULT_NEED_RESET;
9184 case pci_channel_io_perm_failure:
9185 /* Permanent failure, prepare for device down */
75baf696 9186 lpfc_sli_prep_dev_for_perm_failure(phba);
da0436e9 9187 return PCI_ERS_RESULT_DISCONNECT;
0d878419
JS		 9188 default:
9189 /* Unknown state, prepare and request slot reset */
9190 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9191 "0472 Unknown PCI error state: x%x\n", state);
9192 lpfc_sli_prep_dev_for_reset(phba);
9193 return PCI_ERS_RESULT_NEED_RESET;
da0436e9 9194 }
da0436e9
JS		 9195}
9196
9197/**
9198 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
9199 * @pdev: pointer to PCI device.
9200 *
9201 * This routine is called from the PCI subsystem for error handling to
9202 * device with SLI-3 interface spec. This is called after PCI bus has been
9203 * reset to restart the PCI card from scratch, as if from a cold-boot.
9204 * During the PCI subsystem error recovery, after driver returns
9205 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9206 * recovery and then call this routine before calling the .resume method
9207 * to recover the device. This function will initialize the HBA device,
9208 * enable the interrupt, but it will just put the HBA to offline state
9209 * without passing any I/O traffic.
9210 *
9211 * Return codes
9212 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9213 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9214 */
9215static pci_ers_result_t
9216lpfc_io_slot_reset_s3(struct pci_dev *pdev)
9217{
9218 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9219 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9220 struct lpfc_sli *psli = &phba->sli;
9221 uint32_t intr_mode;
9222
9223 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9224 if (pci_enable_device_mem(pdev)) {
9225 printk(KERN_ERR "lpfc: Cannot re-enable "
9226 "PCI device after reset.\n");
9227 return PCI_ERS_RESULT_DISCONNECT;
9228 }
9229
9230 pci_restore_state(pdev);
1dfb5a47
JS		 9231
9232 /*
9233 * As the new kernel behavior of pci_restore_state() API call clears
9234 * device saved_state flag, need to save the restored state again.
9235 */
9236 pci_save_state(pdev);
9237
da0436e9
JS		 9238 if (pdev->is_busmaster)
9239 pci_set_master(pdev);
9240
9241 spin_lock_irq(&phba->hbalock);
9242 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9243 spin_unlock_irq(&phba->hbalock);
9244
9245 /* Configure and enable interrupt */
9246 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9247 if (intr_mode == LPFC_INTR_ERROR) {
9248 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9249 "0427 Cannot re-enable interrupt after "
9250 "slot reset.\n");
9251 return PCI_ERS_RESULT_DISCONNECT;
9252 } else
9253 phba->intr_mode = intr_mode;
9254
75baf696 9255 /* Take device offline, it will perform cleanup */
618a5230 9256 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
da0436e9
JS		 9257 lpfc_offline(phba);
9258 lpfc_sli_brdrestart(phba);
9259
9260 /* Log the current active interrupt mode */
9261 lpfc_log_intr_mode(phba, phba->intr_mode);
9262
9263 return PCI_ERS_RESULT_RECOVERED;
9264}
9265
9266/**
9267 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
9268 * @pdev: pointer to PCI device
9269 *
9270 * This routine is called from the PCI subsystem for error handling to device
9271 * with SLI-3 interface spec. It is called when kernel error recovery tells
9272 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9273 * error recovery. After this call, traffic can start to flow from this device
9274 * again.
9275 */
9276static void
9277lpfc_io_resume_s3(struct pci_dev *pdev)
9278{
9279 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9280 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3772a991 9281
e2af0d2e 9282 /* Bring device online, it will be no-op for non-fatal error resume */
da0436e9 9283 lpfc_online(phba);
0d878419
JS		 9284
9285 /* Clean up Advanced Error Reporting (AER) if needed */
9286 if (phba->hba_flag & HBA_AER_ENABLED)
9287 pci_cleanup_aer_uncorrect_error_status(pdev);
da0436e9 9288}
3772a991 9289
da0436e9
JS		 9290/**
9291 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
9292 * @phba: pointer to lpfc hba data structure.
9293 *
9294 * returns the number of ELS/CT IOCBs to reserve
9295 **/
9296int
9297lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
9298{
9299 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
9300
f1126688
JS		 9301 if (phba->sli_rev == LPFC_SLI_REV4) {
9302 if (max_xri <= 100)
6a9c52cf 9303 return 10;
f1126688 9304 else if (max_xri <= 256)
6a9c52cf 9305 return 25;
f1126688 9306 else if (max_xri <= 512)
6a9c52cf 9307 return 50;
f1126688 9308 else if (max_xri <= 1024)
6a9c52cf 9309 return 100;
8a9d2e80 9310 else if (max_xri <= 1536)
6a9c52cf 9311 return 150;
8a9d2e80
JS		 9312 else if (max_xri <= 2048)
9313 return 200;
9314 else
9315 return 250;
f1126688
JS		 9316 } else
9317 return 0;
3772a991
JS		 9318}
9319
52d52440
JS		 9320/**
9321 * lpfc_write_firmware - attempt to write a firmware image to the port
52d52440 9322 * @fw: pointer to firmware image returned from request_firmware.
ce396282 9323 * @phba: pointer to lpfc hba data structure.
52d52440 9324 *
52d52440 9325 **/
ce396282
JS		 9326static void
9327lpfc_write_firmware(const struct firmware *fw, void *context)
52d52440 9328{
ce396282 9329 struct lpfc_hba *phba = (struct lpfc_hba *)context;
6b5151fd 9330 char fwrev[FW_REV_STR_SIZE];
ce396282 9331 struct lpfc_grp_hdr *image;
52d52440
JS		 9332 struct list_head dma_buffer_list;
9333 int i, rc = 0;
9334 struct lpfc_dmabuf *dmabuf, *next;
9335 uint32_t offset = 0, temp_offset = 0;
9336
ce396282
JS		 9337 /* It can be null, sanity check */
9338 if (!fw) {
9339 rc = -ENXIO;
9340 goto out;
9341 }
9342 image = (struct lpfc_grp_hdr *)fw->data;
9343
52d52440 9344 INIT_LIST_HEAD(&dma_buffer_list);
079b5c91
JS		 9345 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
9346 (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
9347 LPFC_FILE_TYPE_GROUP) ||
9348 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
9349 (be32_to_cpu(image->size) != fw->size)) {
52d52440
JS		 9350 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9351 "3022 Invalid FW image found. "
079b5c91
JS		 9352 "Magic:%x Type:%x ID:%x\n",
9353 be32_to_cpu(image->magic_number),
9354 bf_get_be32(lpfc_grp_hdr_file_type, image),
9355 bf_get_be32(lpfc_grp_hdr_id, image));
ce396282
JS		 9356 rc = -EINVAL;
9357 goto release_out;
52d52440
JS		 9358 }
9359 lpfc_decode_firmware_rev(phba, fwrev, 1);
88a2cfbb 9360 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
52d52440 9361 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
ce396282 9362 "3023 Updating Firmware, Current Version:%s "
52d52440 9363 "New Version:%s\n",
88a2cfbb 9364 fwrev, image->revision);
52d52440
JS		 9365 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
9366 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
9367 GFP_KERNEL);
9368 if (!dmabuf) {
9369 rc = -ENOMEM;
ce396282 9370 goto release_out;
52d52440
JS		 9371 }
9372 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
9373 SLI4_PAGE_SIZE,
9374 &dmabuf->phys,
9375 GFP_KERNEL);
9376 if (!dmabuf->virt) {
9377 kfree(dmabuf);
9378 rc = -ENOMEM;
ce396282 9379 goto release_out;
52d52440
JS		 9380 }
9381 list_add_tail(&dmabuf->list, &dma_buffer_list);
9382 }
9383 while (offset < fw->size) {
9384 temp_offset = offset;
9385 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
079b5c91 9386 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
52d52440
JS		 9387 memcpy(dmabuf->virt,
9388 fw->data + temp_offset,
079b5c91
JS		 9389 fw->size - temp_offset);
9390 temp_offset = fw->size;
52d52440
JS		 9391 break;
9392 }
52d52440
JS		 9393 memcpy(dmabuf->virt, fw->data + temp_offset,
9394 SLI4_PAGE_SIZE);
88a2cfbb 9395 temp_offset += SLI4_PAGE_SIZE;
52d52440
JS		 9396 }
9397 rc = lpfc_wr_object(phba, &dma_buffer_list,
9398 (fw->size - offset), &offset);
ce396282
JS		 9399 if (rc)
9400 goto release_out;
52d52440
JS		 9401 }
9402 rc = offset;
9403 }
ce396282
JS		 9404
9405release_out:
52d52440
JS		 9406 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
9407 list_del(&dmabuf->list);
9408 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
9409 dmabuf->virt, dmabuf->phys);
9410 kfree(dmabuf);
9411 }
ce396282
JS		 9412 release_firmware(fw);
9413out:
9414 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9415 "3024 Firmware update done: %d.", rc);
9416 return;
52d52440
JS		 9417}
9418
3772a991 9419/**
da0436e9 9420 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
3772a991
JS		 9421 * @pdev: pointer to PCI device
9422 * @pid: pointer to PCI device identifier
9423 *
da0436e9
JS		 9424 * This routine is called from the kernel's PCI subsystem to device with
9425 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
3772a991 9426 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
da0436e9
JS		 9427 * information of the device and driver to see if the driver state that it
9428 * can support this kind of device. If the match is successful, the driver
9429 * core invokes this routine. If this routine determines it can claim the HBA,
9430 * it does all the initialization that it needs to do to handle the HBA
9431 * properly.
3772a991
JS		 9432 *
9433 * Return code
9434 * 0 - driver can claim the device
9435 * negative value - driver can not claim the device
9436 **/
9437static int __devinit
da0436e9 9438lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
3772a991
JS		 9439{
9440 struct lpfc_hba *phba;
9441 struct lpfc_vport *vport = NULL;
6669f9bb 9442 struct Scsi_Host *shost = NULL;
ce396282 9443 int error, ret;
3772a991 9444 uint32_t cfg_mode, intr_mode;
da0436e9 9445 int mcnt;
67d12733 9446 int adjusted_fcp_io_channel;
5402a315 9447 uint8_t file_name[ELX_MODEL_NAME_SIZE];
3772a991
JS		 9448
9449 /* Allocate memory for HBA structure */
9450 phba = lpfc_hba_alloc(pdev);
9451 if (!phba)
9452 return -ENOMEM;
9453
9454 /* Perform generic PCI device enabling operation */
9455 error = lpfc_enable_pci_dev(phba);
079b5c91 9456 if (error)
3772a991 9457 goto out_free_phba;
3772a991 9458
da0436e9
JS		 9459 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
9460 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
3772a991
JS		 9461 if (error)
9462 goto out_disable_pci_dev;
9463
da0436e9
JS		 9464 /* Set up SLI-4 specific device PCI memory space */
9465 error = lpfc_sli4_pci_mem_setup(phba);
3772a991
JS		 9466 if (error) {
9467 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9468 "1410 Failed to set up pci memory space.\n");
3772a991
JS		 9469 goto out_disable_pci_dev;
9470 }
9471
9472 /* Set up phase-1 common device driver resources */
9473 error = lpfc_setup_driver_resource_phase1(phba);
9474 if (error) {
9475 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 9476 "1411 Failed to set up driver resource.\n");
9477 goto out_unset_pci_mem_s4;
3772a991
JS		 9478 }
9479
da0436e9
JS		 9480 /* Set up SLI-4 Specific device driver resources */
9481 error = lpfc_sli4_driver_resource_setup(phba);
3772a991
JS		 9482 if (error) {
9483 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 9484 "1412 Failed to set up driver resource.\n");
9485 goto out_unset_pci_mem_s4;
3772a991
JS		 9486 }
9487
9488 /* Initialize and populate the iocb list per host */
2a9bf3d0
JS		 9489
9490 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9491 "2821 initialize iocb list %d.\n",
9492 phba->cfg_iocb_cnt*1024);
9493 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
9494
3772a991
JS		 9495 if (error) {
9496 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 9497 "1413 Failed to initialize iocb list.\n");
9498 goto out_unset_driver_resource_s4;
3772a991
JS		 9499 }
9500
19ca7609 9501 INIT_LIST_HEAD(&phba->active_rrq_list);
7d791df7 9502 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
19ca7609 9503
3772a991
JS		 9504 /* Set up common device driver resources */
9505 error = lpfc_setup_driver_resource_phase2(phba);
9506 if (error) {
9507 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9508 "1414 Failed to set up driver resource.\n");
3772a991
JS		 9509 goto out_free_iocb_list;
9510 }
9511
079b5c91
JS		 9512 /* Get the default values for Model Name and Description */
9513 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9514
3772a991
JS		 9515 /* Create SCSI host to the physical port */
9516 error = lpfc_create_shost(phba);
9517 if (error) {
9518 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9519 "1415 Failed to create scsi host.\n");
3772a991
JS		 9520 goto out_unset_driver_resource;
9521 }
9399627f 9522
5b75da2f 9523 /* Configure sysfs attributes */
3772a991
JS		 9524 vport = phba->pport;
9525 error = lpfc_alloc_sysfs_attr(vport);
9526 if (error) {
9399627f 9527 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9528 "1416 Failed to allocate sysfs attr\n");
3772a991 9529 goto out_destroy_shost;
98c9ea5c 9530 }
875fbdfe 9531
6669f9bb 9532 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
3772a991 9533 /* Now, trying to enable interrupt and bring up the device */
5b75da2f
JS		 9534 cfg_mode = phba->cfg_use_msi;
9535 while (true) {
3772a991
JS		 9536 /* Put device to a known state before enabling interrupt */
9537 lpfc_stop_port(phba);
5b75da2f 9538 /* Configure and enable interrupt */
da0436e9 9539 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
5b75da2f
JS		 9540 if (intr_mode == LPFC_INTR_ERROR) {
9541 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9542 "0426 Failed to enable interrupt.\n");
3772a991 9543 error = -ENODEV;
5b75da2f
JS		 9544 goto out_free_sysfs_attr;
9545 }
0558056c 9546 /* Default to single EQ for non-MSI-X */
def9c7a9 9547 if (phba->intr_type != MSIX)
1c13bf66 9548 adjusted_fcp_io_channel = 1;
0558056c 9549 else
67d12733
JS		 9550 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
9551 phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
da0436e9
JS		 9552 /* Set up SLI-4 HBA */
9553 if (lpfc_sli4_hba_setup(phba)) {
5b75da2f 9554 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9555 "1421 Failed to set up hba\n");
5b75da2f 9556 error = -ENODEV;
da0436e9 9557 goto out_disable_intr;
5b75da2f
JS		 9558 }
9559
da0436e9
JS		 9560 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
9561 if (intr_mode != 0)
9562 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
9563 LPFC_ACT_INTR_CNT);
9564
9565 /* Check active interrupts received only for MSI/MSI-X */
3772a991 9566 if (intr_mode == 0 ||
da0436e9 9567 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
5b75da2f
JS		 9568 /* Log the current active interrupt mode */
9569 phba->intr_mode = intr_mode;
9570 lpfc_log_intr_mode(phba, intr_mode);
9571 break;
5b75da2f 9572 }
da0436e9
JS		 9573 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9574 "0451 Configure interrupt mode (%d) "
9575 "failed active interrupt test.\n",
9576 intr_mode);
2fcee4bf
JS		 9577 /* Unset the previous SLI-4 HBA setup. */
9578 /*
9579 * TODO: Is this operation compatible with IF TYPE 2
9580 * devices? All port state is deleted and cleared.
9581 */
da0436e9
JS		 9582 lpfc_sli4_unset_hba(phba);
9583 /* Try next level of interrupt mode */
9584 cfg_mode = --intr_mode;
98c9ea5c 9585 }
858c9f6c 9586
3772a991
JS		 9587 /* Perform post initialization setup */
9588 lpfc_post_init_setup(phba);
dea3101e 9589
026abb87
JS		 9590 /* check for firmware upgrade or downgrade (if_type 2 only) */
9591 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
9592 LPFC_SLI_INTF_IF_TYPE_2) {
5402a315
JS		 9593 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp",
9594 phba->ModelName);
ce396282
JS		 9595 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
9596 file_name, &phba->pcidev->dev,
9597 GFP_KERNEL, (void *)phba,
9598 lpfc_write_firmware);
52d52440
JS		 9599 }
9600
1c6834a7
JS		 9601 /* Check if there are static vports to be created. */
9602 lpfc_create_static_vport(phba);
dea3101e 9603 return 0;
9604
da0436e9
JS		 9605out_disable_intr:
9606 lpfc_sli4_disable_intr(phba);
5b75da2f
JS		 9607out_free_sysfs_attr:
9608 lpfc_free_sysfs_attr(vport);
3772a991
JS		 9609out_destroy_shost:
9610 lpfc_destroy_shost(phba);
9611out_unset_driver_resource:
9612 lpfc_unset_driver_resource_phase2(phba);
9613out_free_iocb_list:
9614 lpfc_free_iocb_list(phba);
da0436e9
JS		 9615out_unset_driver_resource_s4:
9616 lpfc_sli4_driver_resource_unset(phba);
9617out_unset_pci_mem_s4:
9618 lpfc_sli4_pci_mem_unset(phba);
3772a991
JS		 9619out_disable_pci_dev:
9620 lpfc_disable_pci_dev(phba);
6669f9bb
JS		 9621 if (shost)
9622 scsi_host_put(shost);
2e0fef85 9623out_free_phba:
3772a991 9624 lpfc_hba_free(phba);
dea3101e 9625 return error;
9626}
9627
e59058c4 9628/**
da0436e9 9629 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
e59058c4
JS		 9630 * @pdev: pointer to PCI device
9631 *
da0436e9
JS		 9632 * This routine is called from the kernel's PCI subsystem to device with
9633 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
3772a991
JS		 9634 * removed from PCI bus, it performs all the necessary cleanup for the HBA
9635 * device to be removed from the PCI subsystem properly.
e59058c4 9636 **/
dea3101e 9637static void __devexit
da0436e9 9638lpfc_pci_remove_one_s4(struct pci_dev *pdev)
dea3101e 9639{
da0436e9 9640 struct Scsi_Host *shost = pci_get_drvdata(pdev);
2e0fef85 9641 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
eada272d 9642 struct lpfc_vport **vports;
da0436e9 9643 struct lpfc_hba *phba = vport->phba;
eada272d 9644 int i;
8a4df120 9645
da0436e9 9646 /* Mark the device unloading flag */
549e55cd 9647 spin_lock_irq(&phba->hbalock);
51ef4c26 9648 vport->load_flag |= FC_UNLOADING;
549e55cd 9649 spin_unlock_irq(&phba->hbalock);
2e0fef85 9650
da0436e9 9651 /* Free the HBA sysfs attributes */
858c9f6c
JS		 9652 lpfc_free_sysfs_attr(vport);
9653
eada272d
JS		 9654 /* Release all the vports against this physical port */
9655 vports = lpfc_create_vport_work_array(phba);
9656 if (vports != NULL)
587a37f6
JS		 9657 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9658 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9659 continue;
eada272d 9660 fc_vport_terminate(vports[i]->fc_vport);
587a37f6 9661 }
eada272d
JS		 9662 lpfc_destroy_vport_work_array(phba, vports);
9663
9664 /* Remove FC host and then SCSI host with the physical port */
858c9f6c
JS		 9665 fc_remove_host(shost);
9666 scsi_remove_host(shost);
da0436e9
JS		 9667
9668 /* Perform cleanup on the physical port */
87af33fe
JS		 9669 lpfc_cleanup(vport);
9670
2e0fef85 9671 /*
da0436e9 9672 * Bring down the SLI Layer. This step disables all interrupts,
2e0fef85 9673 * clears the rings, discards all mailbox commands, and resets
da0436e9 9674 * the HBA FCoE function.
2e0fef85 9675 */
da0436e9
JS		 9676 lpfc_debugfs_terminate(vport);
9677 lpfc_sli4_hba_unset(phba);
a257bf90 9678
858c9f6c
JS		 9679 spin_lock_irq(&phba->hbalock);
9680 list_del_init(&vport->listentry);
9681 spin_unlock_irq(&phba->hbalock);
9682
3677a3a7 9683 /* Perform scsi free before driver resource_unset since scsi
da0436e9 9684 * buffers are released to their corresponding pools here.
2e0fef85
JS		 9685 */
9686 lpfc_scsi_free(phba);
67d12733 9687
da0436e9 9688 lpfc_sli4_driver_resource_unset(phba);
ed957684 9689
da0436e9
JS		 9690 /* Unmap adapter Control and Doorbell registers */
9691 lpfc_sli4_pci_mem_unset(phba);
2e0fef85 9692
da0436e9
JS		 9693 /* Release PCI resources and disable device's PCI function */
9694 scsi_host_put(shost);
9695 lpfc_disable_pci_dev(phba);
2e0fef85 9696
da0436e9 9697 /* Finally, free the driver's device data structure */
3772a991 9698 lpfc_hba_free(phba);
2e0fef85 9699
da0436e9 9700 return;
dea3101e 9701}
9702
3a55b532 9703/**
da0436e9 9704 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
3a55b532
JS		 9705 * @pdev: pointer to PCI device
9706 * @msg: power management message
9707 *
da0436e9
JS		 9708 * This routine is called from the kernel's PCI subsystem to support system
9709 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
9710 * this method, it quiesces the device by stopping the driver's worker
9711 * thread for the device, turning off device's interrupt and DMA, and bring
9712 * the device offline. Note that as the driver implements the minimum PM
9713 * requirements to a power-aware driver's PM support for suspend/resume -- all
9714 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
9715 * method call will be treated as SUSPEND and the driver will fully
9716 * reinitialize its device during resume() method call, the driver will set
9717 * device to PCI_D3hot state in PCI config space instead of setting it
3772a991 9718 * according to the @msg provided by the PM.
3a55b532
JS		 9719 *
9720 * Return code
3772a991
JS		 9721 * 0 - driver suspended the device
9722 * Error otherwise
3a55b532
JS		 9723 **/
9724static int
da0436e9 9725lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
3a55b532
JS		 9726{
9727 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9728 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9729
9730 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
75baf696 9731 "2843 PCI device Power Management suspend.\n");
3a55b532
JS		 9732
9733 /* Bring down the device */
618a5230 9734 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
3a55b532
JS		 9735 lpfc_offline(phba);
9736 kthread_stop(phba->worker_thread);
9737
9738 /* Disable interrupt from device */
da0436e9 9739 lpfc_sli4_disable_intr(phba);
5350d872 9740 lpfc_sli4_queue_destroy(phba);
3a55b532
JS		 9741
9742 /* Save device state to PCI config space */
9743 pci_save_state(pdev);
9744 pci_set_power_state(pdev, PCI_D3hot);
9745
9746 return 0;
9747}
9748
9749/**
da0436e9 9750 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
3a55b532
JS		 9751 * @pdev: pointer to PCI device
9752 *
da0436e9
JS		 9753 * This routine is called from the kernel's PCI subsystem to support system
9754 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
9755 * this method, it restores the device's PCI config space state and fully
9756 * reinitializes the device and brings it online. Note that as the driver
9757 * implements the minimum PM requirements to a power-aware driver's PM for
9758 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9759 * to the suspend() method call will be treated as SUSPEND and the driver
9760 * will fully reinitialize its device during resume() method call, the device
9761 * will be set to PCI_D0 directly in PCI config space before restoring the
9762 * state.
3a55b532
JS		 9763 *
9764 * Return code
3772a991
JS		 9765 * 0 - driver suspended the device
9766 * Error otherwise
3a55b532
JS		 9767 **/
9768static int
da0436e9 9769lpfc_pci_resume_one_s4(struct pci_dev *pdev)
3a55b532
JS		 9770{
9771 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9772 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
5b75da2f 9773 uint32_t intr_mode;
3a55b532
JS		 9774 int error;
9775
9776 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
da0436e9 9777 "0292 PCI device Power Management resume.\n");
3a55b532
JS		 9778
9779 /* Restore device state from PCI config space */
9780 pci_set_power_state(pdev, PCI_D0);
9781 pci_restore_state(pdev);
1dfb5a47
JS		 9782
9783 /*
9784 * As the new kernel behavior of pci_restore_state() API call clears
9785 * device saved_state flag, need to save the restored state again.
9786 */
9787 pci_save_state(pdev);
9788
3a55b532
JS		 9789 if (pdev->is_busmaster)
9790 pci_set_master(pdev);
9791
da0436e9 9792 /* Startup the kernel thread for this host adapter. */
3a55b532
JS		 9793 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9794 "lpfc_worker_%d", phba->brd_no);
9795 if (IS_ERR(phba->worker_thread)) {
9796 error = PTR_ERR(phba->worker_thread);
9797 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9798 "0293 PM resume failed to start worker "
3a55b532
JS		 9799 "thread: error=x%x.\n", error);
9800 return error;
9801 }
9802
5b75da2f 9803 /* Configure and enable interrupt */
da0436e9 9804 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
5b75da2f 9805 if (intr_mode == LPFC_INTR_ERROR) {
3a55b532 9806 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9807 "0294 PM resume Failed to enable interrupt\n");
5b75da2f
JS		 9808 return -EIO;
9809 } else
9810 phba->intr_mode = intr_mode;
3a55b532
JS		 9811
9812 /* Restart HBA and bring it online */
9813 lpfc_sli_brdrestart(phba);
9814 lpfc_online(phba);
9815
5b75da2f
JS		 9816 /* Log the current active interrupt mode */
9817 lpfc_log_intr_mode(phba, phba->intr_mode);
9818
3a55b532
JS		 9819 return 0;
9820}
9821
75baf696
JS		 9822/**
9823 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
9824 * @phba: pointer to lpfc hba data structure.
9825 *
9826 * This routine is called to prepare the SLI4 device for PCI slot recover. It
9827 * aborts all the outstanding SCSI I/Os to the pci device.
9828 **/
9829static void
9830lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
9831{
9832 struct lpfc_sli *psli = &phba->sli;
9833 struct lpfc_sli_ring *pring;
9834
9835 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9836 "2828 PCI channel I/O abort preparing for recovery\n");
9837 /*
9838 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9839 * and let the SCSI mid-layer to retry them to recover.
9840 */
9841 pring = &psli->ring[psli->fcp_ring];
9842 lpfc_sli_abort_iocb_ring(phba, pring);
9843}
9844
9845/**
9846 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
9847 * @phba: pointer to lpfc hba data structure.
9848 *
9849 * This routine is called to prepare the SLI4 device for PCI slot reset. It
9850 * disables the device interrupt and pci device, and aborts the internal FCP
9851 * pending I/Os.
9852 **/
9853static void
9854lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
9855{
9856 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9857 "2826 PCI channel disable preparing for reset\n");
9858
9859 /* Block any management I/Os to the device */
618a5230 9860 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
75baf696
JS		 9861
9862 /* Block all SCSI devices' I/Os on the host */
9863 lpfc_scsi_dev_block(phba);
9864
9865 /* stop all timers */
9866 lpfc_stop_hba_timers(phba);
9867
9868 /* Disable interrupt and pci device */
9869 lpfc_sli4_disable_intr(phba);
5350d872 9870 lpfc_sli4_queue_destroy(phba);
75baf696
JS		 9871 pci_disable_device(phba->pcidev);
9872
9873 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9874 lpfc_sli_flush_fcp_rings(phba);
9875}
9876
9877/**
9878 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
9879 * @phba: pointer to lpfc hba data structure.
9880 *
9881 * This routine is called to prepare the SLI4 device for PCI slot permanently
9882 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9883 * pending I/Os.
9884 **/
9885static void
9886lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9887{
9888 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9889 "2827 PCI channel permanent disable for failure\n");
9890
9891 /* Block all SCSI devices' I/Os on the host */
9892 lpfc_scsi_dev_block(phba);
9893
9894 /* stop all timers */
9895 lpfc_stop_hba_timers(phba);
9896
9897 /* Clean up all driver's outstanding SCSI I/Os */
9898 lpfc_sli_flush_fcp_rings(phba);
9899}
9900
8d63f375 9901/**
da0436e9 9902 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
e59058c4
JS		 9903 * @pdev: pointer to PCI device.
9904 * @state: the current PCI connection state.
8d63f375 9905 *
da0436e9
JS		 9906 * This routine is called from the PCI subsystem for error handling to device
9907 * with SLI-4 interface spec. This function is called by the PCI subsystem
9908 * after a PCI bus error affecting this device has been detected. When this
9909 * function is invoked, it will need to stop all the I/Os and interrupt(s)
9910 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
9911 * for the PCI subsystem to perform proper recovery as desired.
e59058c4
JS		 9912 *
9913 * Return codes
3772a991
JS		 9914 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9915 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
e59058c4 9916 **/
3772a991 9917static pci_ers_result_t
da0436e9 9918lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
8d63f375 9919{
75baf696
JS		 9920 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9921 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9922
9923 switch (state) {
9924 case pci_channel_io_normal:
9925 /* Non-fatal error, prepare for recovery */
9926 lpfc_sli4_prep_dev_for_recover(phba);
9927 return PCI_ERS_RESULT_CAN_RECOVER;
9928 case pci_channel_io_frozen:
9929 /* Fatal error, prepare for slot reset */
9930 lpfc_sli4_prep_dev_for_reset(phba);
9931 return PCI_ERS_RESULT_NEED_RESET;
9932 case pci_channel_io_perm_failure:
9933 /* Permanent failure, prepare for device down */
9934 lpfc_sli4_prep_dev_for_perm_failure(phba);
9935 return PCI_ERS_RESULT_DISCONNECT;
9936 default:
9937 /* Unknown state, prepare and request slot reset */
9938 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9939 "2825 Unknown PCI error state: x%x\n", state);
9940 lpfc_sli4_prep_dev_for_reset(phba);
9941 return PCI_ERS_RESULT_NEED_RESET;
9942 }
8d63f375
LV		 9943}
9944
9945/**
da0436e9 9946 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
e59058c4
JS		 9947 * @pdev: pointer to PCI device.
9948 *
da0436e9
JS		 9949 * This routine is called from the PCI subsystem for error handling to device
9950 * with SLI-4 interface spec. It is called after PCI bus has been reset to
9951 * restart the PCI card from scratch, as if from a cold-boot. During the
9952 * PCI subsystem error recovery, after the driver returns
3772a991 9953 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
da0436e9
JS		 9954 * recovery and then call this routine before calling the .resume method to
9955 * recover the device. This function will initialize the HBA device, enable
9956 * the interrupt, but it will just put the HBA to offline state without
9957 * passing any I/O traffic.
8d63f375 9958 *
e59058c4 9959 * Return codes
3772a991
JS		 9960 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9961 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8d63f375 9962 */
3772a991 9963static pci_ers_result_t
da0436e9 9964lpfc_io_slot_reset_s4(struct pci_dev *pdev)
8d63f375 9965{
75baf696
JS		 9966 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9967 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9968 struct lpfc_sli *psli = &phba->sli;
9969 uint32_t intr_mode;
9970
9971 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9972 if (pci_enable_device_mem(pdev)) {
9973 printk(KERN_ERR "lpfc: Cannot re-enable "
9974 "PCI device after reset.\n");
9975 return PCI_ERS_RESULT_DISCONNECT;
9976 }
9977
9978 pci_restore_state(pdev);
0a96e975
JS		 9979
9980 /*
9981 * As the new kernel behavior of pci_restore_state() API call clears
9982 * device saved_state flag, need to save the restored state again.
9983 */
9984 pci_save_state(pdev);
9985
75baf696
JS		 9986 if (pdev->is_busmaster)
9987 pci_set_master(pdev);
9988
9989 spin_lock_irq(&phba->hbalock);
9990 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9991 spin_unlock_irq(&phba->hbalock);
9992
9993 /* Configure and enable interrupt */
9994 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9995 if (intr_mode == LPFC_INTR_ERROR) {
9996 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9997 "2824 Cannot re-enable interrupt after "
9998 "slot reset.\n");
9999 return PCI_ERS_RESULT_DISCONNECT;
10000 } else
10001 phba->intr_mode = intr_mode;
10002
10003 /* Log the current active interrupt mode */
10004 lpfc_log_intr_mode(phba, phba->intr_mode);
10005
8d63f375
LV		 10006 return PCI_ERS_RESULT_RECOVERED;
10007}
10008
10009/**
da0436e9 10010 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
e59058c4 10011 * @pdev: pointer to PCI device
8d63f375 10012 *
3772a991 10013 * This routine is called from the PCI subsystem for error handling to device
da0436e9 10014 * with SLI-4 interface spec. It is called when kernel error recovery tells
3772a991
JS		 10015 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10016 * error recovery. After this call, traffic can start to flow from this device
10017 * again.
da0436e9 10018 **/
3772a991 10019static void
da0436e9 10020lpfc_io_resume_s4(struct pci_dev *pdev)
8d63f375 10021{
75baf696
JS		 10022 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10023 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10024
10025 /*
10026 * In case of slot reset, as function reset is performed through
10027 * mailbox command which needs DMA to be enabled, this operation
10028 * has to be moved to the io resume phase. Taking device offline
10029 * will perform the necessary cleanup.
10030 */
10031 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10032 /* Perform device reset */
618a5230 10033 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
75baf696
JS		 10034 lpfc_offline(phba);
10035 lpfc_sli_brdrestart(phba);
10036 /* Bring the device back online */
10037 lpfc_online(phba);
10038 }
10039
10040 /* Clean up Advanced Error Reporting (AER) if needed */
10041 if (phba->hba_flag & HBA_AER_ENABLED)
10042 pci_cleanup_aer_uncorrect_error_status(pdev);
8d63f375
LV		 10043}
10044
3772a991
JS		 10045/**
10046 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10047 * @pdev: pointer to PCI device
10048 * @pid: pointer to PCI device identifier
10049 *
10050 * This routine is to be registered to the kernel's PCI subsystem. When an
10051 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10052 * at PCI device-specific information of the device and driver to see if the
10053 * driver state that it can support this kind of device. If the match is
10054 * successful, the driver core invokes this routine. This routine dispatches
10055 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10056 * do all the initialization that it needs to do to handle the HBA device
10057 * properly.
10058 *
10059 * Return code
10060 * 0 - driver can claim the device
10061 * negative value - driver can not claim the device
10062 **/
10063static int __devinit
10064lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10065{
10066 int rc;
8fa38513 10067 struct lpfc_sli_intf intf;
3772a991 10068
28baac74 10069 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
3772a991
JS		 10070 return -ENODEV;
10071
8fa38513 10072 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
28baac74 10073 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
da0436e9 10074 rc = lpfc_pci_probe_one_s4(pdev, pid);
8fa38513 10075 else
3772a991 10076 rc = lpfc_pci_probe_one_s3(pdev, pid);
8fa38513 10077
3772a991
JS		 10078 return rc;
10079}
10080
10081/**
10082 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10083 * @pdev: pointer to PCI device
10084 *
10085 * This routine is to be registered to the kernel's PCI subsystem. When an
10086 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10087 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10088 * remove routine, which will perform all the necessary cleanup for the
10089 * device to be removed from the PCI subsystem properly.
10090 **/
10091static void __devexit
10092lpfc_pci_remove_one(struct pci_dev *pdev)
10093{
10094 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10095 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10096
10097 switch (phba->pci_dev_grp) {
10098 case LPFC_PCI_DEV_LP:
10099 lpfc_pci_remove_one_s3(pdev);
10100 break;
da0436e9
JS		 10101 case LPFC_PCI_DEV_OC:
10102 lpfc_pci_remove_one_s4(pdev);
10103 break;
3772a991
JS		 10104 default:
10105 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10106 "1424 Invalid PCI device group: 0x%x\n",
10107 phba->pci_dev_grp);
10108 break;
10109 }
10110 return;
10111}
10112
10113/**
10114 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10115 * @pdev: pointer to PCI device
10116 * @msg: power management message
10117 *
10118 * This routine is to be registered to the kernel's PCI subsystem to support
10119 * system Power Management (PM). When PM invokes this method, it dispatches
10120 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10121 * suspend the device.
10122 *
10123 * Return code
10124 * 0 - driver suspended the device
10125 * Error otherwise
10126 **/
10127static int
10128lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10129{
10130 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10131 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10132 int rc = -ENODEV;
10133
10134 switch (phba->pci_dev_grp) {
10135 case LPFC_PCI_DEV_LP:
10136 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10137 break;
da0436e9
JS		 10138 case LPFC_PCI_DEV_OC:
10139 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10140 break;
3772a991
JS		 10141 default:
10142 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10143 "1425 Invalid PCI device group: 0x%x\n",
10144 phba->pci_dev_grp);
10145 break;
10146 }
10147 return rc;
10148}
10149
10150/**
10151 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10152 * @pdev: pointer to PCI device
10153 *
10154 * This routine is to be registered to the kernel's PCI subsystem to support
10155 * system Power Management (PM). When PM invokes this method, it dispatches
10156 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10157 * resume the device.
10158 *
10159 * Return code
10160 * 0 - driver suspended the device
10161 * Error otherwise
10162 **/
10163static int
10164lpfc_pci_resume_one(struct pci_dev *pdev)
10165{
10166 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10167 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10168 int rc = -ENODEV;
10169
10170 switch (phba->pci_dev_grp) {
10171 case LPFC_PCI_DEV_LP:
10172 rc = lpfc_pci_resume_one_s3(pdev);
10173 break;
da0436e9
JS		 10174 case LPFC_PCI_DEV_OC:
10175 rc = lpfc_pci_resume_one_s4(pdev);
10176 break;
3772a991
JS		 10177 default:
10178 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10179 "1426 Invalid PCI device group: 0x%x\n",
10180 phba->pci_dev_grp);
10181 break;
10182 }
10183 return rc;
10184}
10185
10186/**
10187 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
10188 * @pdev: pointer to PCI device.
10189 * @state: the current PCI connection state.
10190 *
10191 * This routine is registered to the PCI subsystem for error handling. This
10192 * function is called by the PCI subsystem after a PCI bus error affecting
10193 * this device has been detected. When this routine is invoked, it dispatches
10194 * the action to the proper SLI-3 or SLI-4 device error detected handling
10195 * routine, which will perform the proper error detected operation.
10196 *
10197 * Return codes
10198 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10199 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10200 **/
10201static pci_ers_result_t
10202lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
10203{
10204 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10205 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10206 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10207
10208 switch (phba->pci_dev_grp) {
10209 case LPFC_PCI_DEV_LP:
10210 rc = lpfc_io_error_detected_s3(pdev, state);
10211 break;
da0436e9
JS		 10212 case LPFC_PCI_DEV_OC:
10213 rc = lpfc_io_error_detected_s4(pdev, state);
10214 break;
3772a991
JS		 10215 default:
10216 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10217 "1427 Invalid PCI device group: 0x%x\n",
10218 phba->pci_dev_grp);
10219 break;
10220 }
10221 return rc;
10222}
10223
10224/**
10225 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
10226 * @pdev: pointer to PCI device.
10227 *
10228 * This routine is registered to the PCI subsystem for error handling. This
10229 * function is called after PCI bus has been reset to restart the PCI card
10230 * from scratch, as if from a cold-boot. When this routine is invoked, it
10231 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
10232 * routine, which will perform the proper device reset.
10233 *
10234 * Return codes
10235 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10236 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10237 **/
10238static pci_ers_result_t
10239lpfc_io_slot_reset(struct pci_dev *pdev)
10240{
10241 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10242 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10243 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10244
10245 switch (phba->pci_dev_grp) {
10246 case LPFC_PCI_DEV_LP:
10247 rc = lpfc_io_slot_reset_s3(pdev);
10248 break;
da0436e9
JS		 10249 case LPFC_PCI_DEV_OC:
10250 rc = lpfc_io_slot_reset_s4(pdev);
10251 break;
3772a991
JS		 10252 default:
10253 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10254 "1428 Invalid PCI device group: 0x%x\n",
10255 phba->pci_dev_grp);
10256 break;
10257 }
10258 return rc;
10259}
10260
10261/**
10262 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
10263 * @pdev: pointer to PCI device
10264 *
10265 * This routine is registered to the PCI subsystem for error handling. It
10266 * is called when kernel error recovery tells the lpfc driver that it is
10267 * OK to resume normal PCI operation after PCI bus error recovery. When
10268 * this routine is invoked, it dispatches the action to the proper SLI-3
10269 * or SLI-4 device io_resume routine, which will resume the device operation.
10270 **/
10271static void
10272lpfc_io_resume(struct pci_dev *pdev)
10273{
10274 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10275 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10276
10277 switch (phba->pci_dev_grp) {
10278 case LPFC_PCI_DEV_LP:
10279 lpfc_io_resume_s3(pdev);
10280 break;
da0436e9
JS		 10281 case LPFC_PCI_DEV_OC:
10282 lpfc_io_resume_s4(pdev);
10283 break;
3772a991
JS		 10284 default:
10285 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10286 "1429 Invalid PCI device group: 0x%x\n",
10287 phba->pci_dev_grp);
10288 break;
10289 }
10290 return;
10291}
10292
3ef6d24c
JS		 10293/**
10294 * lpfc_mgmt_open - method called when 'lpfcmgmt' is opened from userspace
10295 * @inode: pointer to the inode representing the lpfcmgmt device
10296 * @filep: pointer to the file representing the open lpfcmgmt device
10297 *
10298 * This routine puts a reference count on the lpfc module whenever the
10299 * character device is opened
10300 **/
10301static int
10302lpfc_mgmt_open(struct inode *inode, struct file *filep)
10303{
10304 try_module_get(THIS_MODULE);
10305 return 0;
10306}
10307
10308/**
10309 * lpfc_mgmt_release - method called when 'lpfcmgmt' is closed in userspace
10310 * @inode: pointer to the inode representing the lpfcmgmt device
10311 * @filep: pointer to the file representing the open lpfcmgmt device
10312 *
10313 * This routine removes a reference count from the lpfc module when the
10314 * character device is closed
10315 **/
10316static int
10317lpfc_mgmt_release(struct inode *inode, struct file *filep)
10318{
10319 module_put(THIS_MODULE);
10320 return 0;
10321}
10322
dea3101e 10323static struct pci_device_id lpfc_id_table[] = {
10324 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
10325 PCI_ANY_ID, PCI_ANY_ID, },
06325e74
JSEC		 10326 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
10327 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 10328 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
10329 PCI_ANY_ID, PCI_ANY_ID, },
10330 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
10331 PCI_ANY_ID, PCI_ANY_ID, },
10332 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
10333 PCI_ANY_ID, PCI_ANY_ID, },
10334 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
10335 PCI_ANY_ID, PCI_ANY_ID, },
10336 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
10337 PCI_ANY_ID, PCI_ANY_ID, },
10338 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
10339 PCI_ANY_ID, PCI_ANY_ID, },
10340 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
10341 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 10342 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
10343 PCI_ANY_ID, PCI_ANY_ID, },
10344 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
10345 PCI_ANY_ID, PCI_ANY_ID, },
10346 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
10347 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 10348 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
10349 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 10350 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
10351 PCI_ANY_ID, PCI_ANY_ID, },
10352 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
10353 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 10354 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
10355 PCI_ANY_ID, PCI_ANY_ID, },
10356 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
10357 PCI_ANY_ID, PCI_ANY_ID, },
10358 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
10359 PCI_ANY_ID, PCI_ANY_ID, },
84774a4d
JS		 10360 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
10361 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 10362 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
10363 PCI_ANY_ID, PCI_ANY_ID, },
10364 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
10365 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 10366 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
10367 PCI_ANY_ID, PCI_ANY_ID, },
10368 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
10369 PCI_ANY_ID, PCI_ANY_ID, },
10370 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
10371 PCI_ANY_ID, PCI_ANY_ID, },
10372 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
10373 PCI_ANY_ID, PCI_ANY_ID, },
10374 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
10375 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 10376 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
10377 PCI_ANY_ID, PCI_ANY_ID, },
10378 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
10379 PCI_ANY_ID, PCI_ANY_ID, },
b87eab38
JS		 10380 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
10381 PCI_ANY_ID, PCI_ANY_ID, },
10382 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
10383 PCI_ANY_ID, PCI_ANY_ID, },
10384 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
10385 PCI_ANY_ID, PCI_ANY_ID, },
10386 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
10387 PCI_ANY_ID, PCI_ANY_ID, },
10388 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
10389 PCI_ANY_ID, PCI_ANY_ID, },
10390 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
10391 PCI_ANY_ID, PCI_ANY_ID, },
84774a4d
JS		 10392 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
10393 PCI_ANY_ID, PCI_ANY_ID, },
10394 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
10395 PCI_ANY_ID, PCI_ANY_ID, },
10396 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
10397 PCI_ANY_ID, PCI_ANY_ID, },
3772a991
JS		 10398 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
10399 PCI_ANY_ID, PCI_ANY_ID, },
a747c9ce
JS		 10400 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
10401 PCI_ANY_ID, PCI_ANY_ID, },
10402 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
6669f9bb 10403 PCI_ANY_ID, PCI_ANY_ID, },
98fc5dd9
JS		 10404 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
10405 PCI_ANY_ID, PCI_ANY_ID, },
085c647c
JS		 10406 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
10407 PCI_ANY_ID, PCI_ANY_ID, },
10408 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
10409 PCI_ANY_ID, PCI_ANY_ID, },
c0c11512
JS		 10410 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
10411 PCI_ANY_ID, PCI_ANY_ID, },
10412 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
10413 PCI_ANY_ID, PCI_ANY_ID, },
f8cafd38
JS		 10414 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
10415 PCI_ANY_ID, PCI_ANY_ID, },
10416 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
10417 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 10418 { 0 }
10419};
10420
10421MODULE_DEVICE_TABLE(pci, lpfc_id_table);
10422
a55b2d21 10423static const struct pci_error_handlers lpfc_err_handler = {
8d63f375
LV		 10424 .error_detected = lpfc_io_error_detected,
10425 .slot_reset = lpfc_io_slot_reset,
10426 .resume = lpfc_io_resume,
10427};
10428
dea3101e 10429static struct pci_driver lpfc_driver = {
10430 .name = LPFC_DRIVER_NAME,
10431 .id_table = lpfc_id_table,
10432 .probe = lpfc_pci_probe_one,
10433 .remove = __devexit_p(lpfc_pci_remove_one),
3a55b532 10434 .suspend = lpfc_pci_suspend_one,
3772a991 10435 .resume = lpfc_pci_resume_one,
2e0fef85 10436 .err_handler = &lpfc_err_handler,
dea3101e 10437};
10438
3ef6d24c
JS		 10439static const struct file_operations lpfc_mgmt_fop = {
10440 .open = lpfc_mgmt_open,
10441 .release = lpfc_mgmt_release,
10442};
10443
10444static struct miscdevice lpfc_mgmt_dev = {
10445 .minor = MISC_DYNAMIC_MINOR,
10446 .name = "lpfcmgmt",
10447 .fops = &lpfc_mgmt_fop,
10448};
10449
e59058c4 10450/**
3621a710 10451 * lpfc_init - lpfc module initialization routine
e59058c4
JS		 10452 *
10453 * This routine is to be invoked when the lpfc module is loaded into the
10454 * kernel. The special kernel macro module_init() is used to indicate the
10455 * role of this routine to the kernel as lpfc module entry point.
10456 *
10457 * Return codes
10458 * 0 - successful
10459 * -ENOMEM - FC attach transport failed
10460 * all others - failed
10461 */
dea3101e 10462static int __init
10463lpfc_init(void)
10464{
10465 int error = 0;
10466
10467 printk(LPFC_MODULE_DESC "\n");
c44ce173 10468 printk(LPFC_COPYRIGHT "\n");
dea3101e 10469
3ef6d24c
JS		 10470 error = misc_register(&lpfc_mgmt_dev);
10471 if (error)
10472 printk(KERN_ERR "Could not register lpfcmgmt device, "
10473 "misc_register returned with status %d", error);
10474
7ee5d43e
JS		 10475 if (lpfc_enable_npiv) {
10476 lpfc_transport_functions.vport_create = lpfc_vport_create;
10477 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
10478 }
dea3101e 10479 lpfc_transport_template =
10480 fc_attach_transport(&lpfc_transport_functions);
7ee5d43e 10481 if (lpfc_transport_template == NULL)
dea3101e 10482 return -ENOMEM;
7ee5d43e 10483 if (lpfc_enable_npiv) {
7ee5d43e 10484 lpfc_vport_transport_template =
98c9ea5c
JS		 10485 fc_attach_transport(&lpfc_vport_transport_functions);
10486 if (lpfc_vport_transport_template == NULL) {
10487 fc_release_transport(lpfc_transport_template);
7ee5d43e 10488 return -ENOMEM;
98c9ea5c 10489 }
7ee5d43e 10490 }
dea3101e 10491 error = pci_register_driver(&lpfc_driver);
92d7f7b0 10492 if (error) {
dea3101e 10493 fc_release_transport(lpfc_transport_template);
d7c255b2
JS		 10494 if (lpfc_enable_npiv)
10495 fc_release_transport(lpfc_vport_transport_template);
92d7f7b0 10496 }
dea3101e 10497
10498 return error;
10499}
10500
e59058c4 10501/**
3621a710 10502 * lpfc_exit - lpfc module removal routine
e59058c4
JS		 10503 *
10504 * This routine is invoked when the lpfc module is removed from the kernel.
10505 * The special kernel macro module_exit() is used to indicate the role of
10506 * this routine to the kernel as lpfc module exit point.
10507 */
dea3101e 10508static void __exit
10509lpfc_exit(void)
10510{
3ef6d24c 10511 misc_deregister(&lpfc_mgmt_dev);
dea3101e 10512 pci_unregister_driver(&lpfc_driver);
10513 fc_release_transport(lpfc_transport_template);
7ee5d43e
JS		 10514 if (lpfc_enable_npiv)
10515 fc_release_transport(lpfc_vport_transport_template);
81301a9b 10516 if (_dump_buf_data) {
6a9c52cf
JS		 10517 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
10518 "_dump_buf_data at 0x%p\n",
81301a9b
JS		 10519 (1L << _dump_buf_data_order), _dump_buf_data);
10520 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
10521 }
10522
10523 if (_dump_buf_dif) {
6a9c52cf
JS		 10524 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
10525 "_dump_buf_dif at 0x%p\n",
81301a9b
JS		 10526 (1L << _dump_buf_dif_order), _dump_buf_dif);
10527 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
10528 }
dea3101e 10529}
10530
10531module_init(lpfc_init);
10532module_exit(lpfc_exit);
10533MODULE_LICENSE("GPL");
10534MODULE_DESCRIPTION(LPFC_MODULE_DESC);
10535MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
10536MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
Linux kernel - Deliverables
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