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[SCSI] lpfc 8.3.21: FC Discovery changes
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / scsi / lpfc / lpfc_init.c
CommitLineData
dea3101e
JB		 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
c44ce173 3 * Fibre Channel Host Bus Adapters. *
4fede78f 4 * Copyright (C) 2004-2010 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
JB		 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
JB		 20 *******************************************************************/
21
dea3101e
JB		 22#include <linux/blkdev.h>
23#include <linux/delay.h>
24#include <linux/dma-mapping.h>
25#include <linux/idr.h>
26#include <linux/interrupt.h>
27#include <linux/kthread.h>
28#include <linux/pci.h>
29#include <linux/spinlock.h>
92d7f7b0 30#include <linux/ctype.h>
0d878419 31#include <linux/aer.h>
5a0e3ad6 32#include <linux/slab.h>
dea3101e 33
91886523 34#include <scsi/scsi.h>
dea3101e
JB		 35#include <scsi/scsi_device.h>
36#include <scsi/scsi_host.h>
37#include <scsi/scsi_transport_fc.h>
38
da0436e9 39#include "lpfc_hw4.h"
dea3101e
JB		 40#include "lpfc_hw.h"
41#include "lpfc_sli.h"
da0436e9 42#include "lpfc_sli4.h"
ea2151b4 43#include "lpfc_nl.h"
dea3101e
JB		 44#include "lpfc_disc.h"
45#include "lpfc_scsi.h"
46#include "lpfc.h"
47#include "lpfc_logmsg.h"
48#include "lpfc_crtn.h"
92d7f7b0 49#include "lpfc_vport.h"
dea3101e
JB		 50#include "lpfc_version.h"
51
81301a9b
JS		 52char *_dump_buf_data;
53unsigned long _dump_buf_data_order;
54char *_dump_buf_dif;
55unsigned long _dump_buf_dif_order;
56spinlock_t _dump_buf_lock;
57
dea3101e
JB		 58static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
59static int lpfc_post_rcv_buf(struct lpfc_hba *);
da0436e9
JS		 60static int lpfc_sli4_queue_create(struct lpfc_hba *);
61static void lpfc_sli4_queue_destroy(struct lpfc_hba *);
62static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
63static int lpfc_setup_endian_order(struct lpfc_hba *);
64static int lpfc_sli4_read_config(struct lpfc_hba *);
65static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
66static void lpfc_free_sgl_list(struct lpfc_hba *);
67static int lpfc_init_sgl_list(struct lpfc_hba *);
68static int lpfc_init_active_sgl_array(struct lpfc_hba *);
69static void lpfc_free_active_sgl(struct lpfc_hba *);
70static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
71static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
72static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
73static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
74static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
dea3101e
JB		 75
76static struct scsi_transport_template *lpfc_transport_template = NULL;
92d7f7b0 77static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
dea3101e
JB		 78static DEFINE_IDR(lpfc_hba_index);
79
e59058c4 80/**
3621a710 81 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
e59058c4
JS		 82 * @phba: pointer to lpfc hba data structure.
83 *
84 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
85 * mailbox command. It retrieves the revision information from the HBA and
86 * collects the Vital Product Data (VPD) about the HBA for preparing the
87 * configuration of the HBA.
88 *
89 * Return codes:
90 * 0 - success.
91 * -ERESTART - requests the SLI layer to reset the HBA and try again.
92 * Any other value - indicates an error.
93 **/
dea3101e 94int
2e0fef85 95lpfc_config_port_prep(struct lpfc_hba *phba)
dea3101e
JB		 96{
97 lpfc_vpd_t *vp = &phba->vpd;
98 int i = 0, rc;
99 LPFC_MBOXQ_t *pmb;
100 MAILBOX_t *mb;
101 char *lpfc_vpd_data = NULL;
102 uint16_t offset = 0;
103 static char licensed[56] =
104 "key unlock for use with gnu public licensed code only\0";
65a29c16 105 static int init_key = 1;
dea3101e
JB		 106
107 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
108 if (!pmb) {
2e0fef85 109 phba->link_state = LPFC_HBA_ERROR;
dea3101e
JB		 110 return -ENOMEM;
111 }
112
04c68496 113 mb = &pmb->u.mb;
2e0fef85 114 phba->link_state = LPFC_INIT_MBX_CMDS;
dea3101e
JB		 115
116 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
65a29c16
JS		 117 if (init_key) {
118 uint32_t *ptext = (uint32_t *) licensed;
dea3101e 119
65a29c16
JS		 120 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
121 *ptext = cpu_to_be32(*ptext);
122 init_key = 0;
123 }
dea3101e
JB		 124
125 lpfc_read_nv(phba, pmb);
126 memset((char*)mb->un.varRDnvp.rsvd3, 0,
127 sizeof (mb->un.varRDnvp.rsvd3));
128 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
129 sizeof (licensed));
130
131 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
132
133 if (rc != MBX_SUCCESS) {
ed957684 134 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
e8b62011 135 "0324 Config Port initialization "
dea3101e
JB		 136 "error, mbxCmd x%x READ_NVPARM, "
137 "mbxStatus x%x\n",
dea3101e
JB		 138 mb->mbxCommand, mb->mbxStatus);
139 mempool_free(pmb, phba->mbox_mem_pool);
140 return -ERESTART;
141 }
142 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
2e0fef85
JS		 143 sizeof(phba->wwnn));
144 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
145 sizeof(phba->wwpn));
dea3101e
JB		 146 }
147
92d7f7b0
JS		 148 phba->sli3_options = 0x0;
149
dea3101e
JB		 150 /* Setup and issue mailbox READ REV command */
151 lpfc_read_rev(phba, pmb);
152 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
153 if (rc != MBX_SUCCESS) {
ed957684 154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 155 "0439 Adapter failed to init, mbxCmd x%x "
dea3101e 156 "READ_REV, mbxStatus x%x\n",
dea3101e
JB		 157 mb->mbxCommand, mb->mbxStatus);
158 mempool_free( pmb, phba->mbox_mem_pool);
159 return -ERESTART;
160 }
161
92d7f7b0 162
1de933f3
JSEC		 163 /*
164 * The value of rr must be 1 since the driver set the cv field to 1.
165 * This setting requires the FW to set all revision fields.
dea3101e 166 */
1de933f3 167 if (mb->un.varRdRev.rr == 0) {
dea3101e 168 vp->rev.rBit = 0;
1de933f3 169 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011
JS		 170 "0440 Adapter failed to init, READ_REV has "
171 "missing revision information.\n");
dea3101e
JB		 172 mempool_free(pmb, phba->mbox_mem_pool);
173 return -ERESTART;
dea3101e
JB		 174 }
175
495a714c
JS		 176 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
177 mempool_free(pmb, phba->mbox_mem_pool);
ed957684 178 return -EINVAL;
495a714c 179 }
ed957684 180
dea3101e 181 /* Save information as VPD data */
1de933f3 182 vp->rev.rBit = 1;
92d7f7b0 183 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
1de933f3
JSEC		 184 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
185 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
186 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
187 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
dea3101e
JB		 188 vp->rev.biuRev = mb->un.varRdRev.biuRev;
189 vp->rev.smRev = mb->un.varRdRev.smRev;
190 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
191 vp->rev.endecRev = mb->un.varRdRev.endecRev;
192 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
193 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
194 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
195 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
196 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
197 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
198
92d7f7b0
JS		 199 /* If the sli feature level is less then 9, we must
200 * tear down all RPIs and VPIs on link down if NPIV
201 * is enabled.
202 */
203 if (vp->rev.feaLevelHigh < 9)
204 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
205
dea3101e
JB		 206 if (lpfc_is_LC_HBA(phba->pcidev->device))
207 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
208 sizeof (phba->RandomData));
209
dea3101e 210 /* Get adapter VPD information */
dea3101e
JB		 211 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
212 if (!lpfc_vpd_data)
d7c255b2 213 goto out_free_mbox;
dea3101e
JB		 214
215 do {
a0c87cbd 216 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
dea3101e
JB		 217 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
218
219 if (rc != MBX_SUCCESS) {
220 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011 221 "0441 VPD not present on adapter, "
dea3101e 222 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
dea3101e 223 mb->mbxCommand, mb->mbxStatus);
74b72a59 224 mb->un.varDmp.word_cnt = 0;
dea3101e 225 }
04c68496
JS		 226 /* dump mem may return a zero when finished or we got a
227 * mailbox error, either way we are done.
228 */
229 if (mb->un.varDmp.word_cnt == 0)
230 break;
74b72a59
JW		 231 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
232 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
d7c255b2
JS		 233 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
234 lpfc_vpd_data + offset,
92d7f7b0 235 mb->un.varDmp.word_cnt);
dea3101e 236 offset += mb->un.varDmp.word_cnt;
74b72a59
JW		 237 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
238 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
dea3101e
JB		 239
240 kfree(lpfc_vpd_data);
dea3101e
JB		 241out_free_mbox:
242 mempool_free(pmb, phba->mbox_mem_pool);
243 return 0;
244}
245
e59058c4 246/**
3621a710 247 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
e59058c4
JS		 248 * @phba: pointer to lpfc hba data structure.
249 * @pmboxq: pointer to the driver internal queue element for mailbox command.
250 *
251 * This is the completion handler for driver's configuring asynchronous event
252 * mailbox command to the device. If the mailbox command returns successfully,
253 * it will set internal async event support flag to 1; otherwise, it will
254 * set internal async event support flag to 0.
255 **/
57127f15
JS		 256static void
257lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
258{
04c68496 259 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
57127f15
JS		 260 phba->temp_sensor_support = 1;
261 else
262 phba->temp_sensor_support = 0;
263 mempool_free(pmboxq, phba->mbox_mem_pool);
264 return;
265}
266
97207482 267/**
3621a710 268 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
97207482
JS		 269 * @phba: pointer to lpfc hba data structure.
270 * @pmboxq: pointer to the driver internal queue element for mailbox command.
271 *
272 * This is the completion handler for dump mailbox command for getting
273 * wake up parameters. When this command complete, the response contain
274 * Option rom version of the HBA. This function translate the version number
275 * into a human readable string and store it in OptionROMVersion.
276 **/
277static void
278lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
279{
280 struct prog_id *prg;
281 uint32_t prog_id_word;
282 char dist = ' ';
283 /* character array used for decoding dist type. */
284 char dist_char[] = "nabx";
285
04c68496 286 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
9f1e1b50 287 mempool_free(pmboxq, phba->mbox_mem_pool);
97207482 288 return;
9f1e1b50 289 }
97207482
JS		 290
291 prg = (struct prog_id *) &prog_id_word;
292
293 /* word 7 contain option rom version */
04c68496 294 prog_id_word = pmboxq->u.mb.un.varWords[7];
97207482
JS		 295
296 /* Decode the Option rom version word to a readable string */
297 if (prg->dist < 4)
298 dist = dist_char[prg->dist];
299
300 if ((prg->dist == 3) && (prg->num == 0))
301 sprintf(phba->OptionROMVersion, "%d.%d%d",
302 prg->ver, prg->rev, prg->lev);
303 else
304 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
305 prg->ver, prg->rev, prg->lev,
306 dist, prg->num);
9f1e1b50 307 mempool_free(pmboxq, phba->mbox_mem_pool);
97207482
JS		 308 return;
309}
310
e59058c4 311/**
3621a710 312 * lpfc_config_port_post - Perform lpfc initialization after config port
e59058c4
JS		 313 * @phba: pointer to lpfc hba data structure.
314 *
315 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
316 * command call. It performs all internal resource and state setups on the
317 * port: post IOCB buffers, enable appropriate host interrupt attentions,
318 * ELS ring timers, etc.
319 *
320 * Return codes
321 * 0 - success.
322 * Any other value - error.
323 **/
dea3101e 324int
2e0fef85 325lpfc_config_port_post(struct lpfc_hba *phba)
dea3101e 326{
2e0fef85 327 struct lpfc_vport *vport = phba->pport;
a257bf90 328 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e
JB		 329 LPFC_MBOXQ_t *pmb;
330 MAILBOX_t *mb;
331 struct lpfc_dmabuf *mp;
332 struct lpfc_sli *psli = &phba->sli;
333 uint32_t status, timeout;
2e0fef85
JS		 334 int i, j;
335 int rc;
dea3101e 336
7af67051
JS		 337 spin_lock_irq(&phba->hbalock);
338 /*
339 * If the Config port completed correctly the HBA is not
340 * over heated any more.
341 */
342 if (phba->over_temp_state == HBA_OVER_TEMP)
343 phba->over_temp_state = HBA_NORMAL_TEMP;
344 spin_unlock_irq(&phba->hbalock);
345
dea3101e
JB		 346 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
347 if (!pmb) {
2e0fef85 348 phba->link_state = LPFC_HBA_ERROR;
dea3101e
JB		 349 return -ENOMEM;
350 }
04c68496 351 mb = &pmb->u.mb;
dea3101e 352
dea3101e 353 /* Get login parameters for NID. */
9f1177a3
JS		 354 rc = lpfc_read_sparam(phba, pmb, 0);
355 if (rc) {
356 mempool_free(pmb, phba->mbox_mem_pool);
357 return -ENOMEM;
358 }
359
ed957684 360 pmb->vport = vport;
dea3101e 361 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
ed957684 362 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 363 "0448 Adapter failed init, mbxCmd x%x "
dea3101e 364 "READ_SPARM mbxStatus x%x\n",
dea3101e 365 mb->mbxCommand, mb->mbxStatus);
2e0fef85 366 phba->link_state = LPFC_HBA_ERROR;
dea3101e 367 mp = (struct lpfc_dmabuf *) pmb->context1;
9f1177a3 368 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e
JB		 369 lpfc_mbuf_free(phba, mp->virt, mp->phys);
370 kfree(mp);
371 return -EIO;
372 }
373
374 mp = (struct lpfc_dmabuf *) pmb->context1;
375
2e0fef85 376 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
dea3101e
JB		 377 lpfc_mbuf_free(phba, mp->virt, mp->phys);
378 kfree(mp);
379 pmb->context1 = NULL;
380
a12e07bc 381 if (phba->cfg_soft_wwnn)
2e0fef85
JS		 382 u64_to_wwn(phba->cfg_soft_wwnn,
383 vport->fc_sparam.nodeName.u.wwn);
c3f28afa 384 if (phba->cfg_soft_wwpn)
2e0fef85
JS		 385 u64_to_wwn(phba->cfg_soft_wwpn,
386 vport->fc_sparam.portName.u.wwn);
387 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
dea3101e 388 sizeof (struct lpfc_name));
2e0fef85 389 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
dea3101e 390 sizeof (struct lpfc_name));
a257bf90
JS		 391
392 /* Update the fc_host data structures with new wwn. */
393 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
394 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
21e9a0a5 395 fc_host_max_npiv_vports(shost) = phba->max_vpi;
a257bf90 396
dea3101e
JB		 397 /* If no serial number in VPD data, use low 6 bytes of WWNN */
398 /* This should be consolidated into parse_vpd ? - mr */
399 if (phba->SerialNumber[0] == 0) {
400 uint8_t *outptr;
401
2e0fef85 402 outptr = &vport->fc_nodename.u.s.IEEE[0];
dea3101e
JB		 403 for (i = 0; i < 12; i++) {
404 status = *outptr++;
405 j = ((status & 0xf0) >> 4);
406 if (j <= 9)
407 phba->SerialNumber[i] =
408 (char)((uint8_t) 0x30 + (uint8_t) j);
409 else
410 phba->SerialNumber[i] =
411 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
412 i++;
413 j = (status & 0xf);
414 if (j <= 9)
415 phba->SerialNumber[i] =
416 (char)((uint8_t) 0x30 + (uint8_t) j);
417 else
418 phba->SerialNumber[i] =
419 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
420 }
421 }
422
dea3101e 423 lpfc_read_config(phba, pmb);
ed957684 424 pmb->vport = vport;
dea3101e 425 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
ed957684 426 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 427 "0453 Adapter failed to init, mbxCmd x%x "
dea3101e 428 "READ_CONFIG, mbxStatus x%x\n",
dea3101e 429 mb->mbxCommand, mb->mbxStatus);
2e0fef85 430 phba->link_state = LPFC_HBA_ERROR;
dea3101e
JB		 431 mempool_free( pmb, phba->mbox_mem_pool);
432 return -EIO;
433 }
434
a0c87cbd
JS		 435 /* Check if the port is disabled */
436 lpfc_sli_read_link_ste(phba);
437
dea3101e
JB		 438 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
439 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
440 phba->cfg_hba_queue_depth =
f1126688
JS		 441 (mb->un.varRdConfig.max_xri + 1) -
442 lpfc_sli4_get_els_iocb_cnt(phba);
dea3101e
JB		 443
444 phba->lmt = mb->un.varRdConfig.lmt;
74b72a59
JW		 445
446 /* Get the default values for Model Name and Description */
447 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
448
76a95d75
JS		 449 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_16G)
450 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G)
74b72a59 451 && !(phba->lmt & LMT_1Gb))
76a95d75 452 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G)
74b72a59 453 && !(phba->lmt & LMT_2Gb))
76a95d75 454 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G)
74b72a59 455 && !(phba->lmt & LMT_4Gb))
76a95d75 456 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G)
74b72a59 457 && !(phba->lmt & LMT_8Gb))
76a95d75
JS		 458 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G)
459 && !(phba->lmt & LMT_10Gb))
460 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G)
461 && !(phba->lmt & LMT_16Gb))) {
74b72a59 462 /* Reset link speed to auto */
ed957684 463 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT,
e8b62011 464 "1302 Invalid speed for this board: "
dea3101e 465 "Reset link speed to auto: x%x\n",
dea3101e 466 phba->cfg_link_speed);
76a95d75 467 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
dea3101e
JB		 468 }
469
2e0fef85 470 phba->link_state = LPFC_LINK_DOWN;
dea3101e 471
0b727fea 472 /* Only process IOCBs on ELS ring till hba_state is READY */
a4bc3379
JS		 473 if (psli->ring[psli->extra_ring].cmdringaddr)
474 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
dea3101e
JB		 475 if (psli->ring[psli->fcp_ring].cmdringaddr)
476 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
477 if (psli->ring[psli->next_ring].cmdringaddr)
478 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
479
480 /* Post receive buffers for desired rings */
ed957684
JS		 481 if (phba->sli_rev != 3)
482 lpfc_post_rcv_buf(phba);
dea3101e 483
9399627f
JS		 484 /*
485 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
486 */
487 if (phba->intr_type == MSIX) {
488 rc = lpfc_config_msi(phba, pmb);
489 if (rc) {
490 mempool_free(pmb, phba->mbox_mem_pool);
491 return -EIO;
492 }
493 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
494 if (rc != MBX_SUCCESS) {
495 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
496 "0352 Config MSI mailbox command "
497 "failed, mbxCmd x%x, mbxStatus x%x\n",
04c68496
JS		 498 pmb->u.mb.mbxCommand,
499 pmb->u.mb.mbxStatus);
9399627f
JS		 500 mempool_free(pmb, phba->mbox_mem_pool);
501 return -EIO;
502 }
503 }
504
04c68496 505 spin_lock_irq(&phba->hbalock);
9399627f
JS		 506 /* Initialize ERATT handling flag */
507 phba->hba_flag &= ~HBA_ERATT_HANDLED;
508
dea3101e 509 /* Enable appropriate host interrupts */
dea3101e
JB		 510 status = readl(phba->HCregaddr);
511 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
512 if (psli->num_rings > 0)
513 status |= HC_R0INT_ENA;
514 if (psli->num_rings > 1)
515 status |= HC_R1INT_ENA;
516 if (psli->num_rings > 2)
517 status |= HC_R2INT_ENA;
518 if (psli->num_rings > 3)
519 status |= HC_R3INT_ENA;
520
875fbdfe
JSEC		 521 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
522 (phba->cfg_poll & DISABLE_FCP_RING_INT))
9399627f 523 status &= ~(HC_R0INT_ENA);
875fbdfe 524
dea3101e
JB		 525 writel(status, phba->HCregaddr);
526 readl(phba->HCregaddr); /* flush */
2e0fef85 527 spin_unlock_irq(&phba->hbalock);
dea3101e 528
9399627f
JS		 529 /* Set up ring-0 (ELS) timer */
530 timeout = phba->fc_ratov * 2;
2e0fef85 531 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
9399627f 532 /* Set up heart beat (HB) timer */
858c9f6c
JS		 533 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
534 phba->hb_outstanding = 0;
535 phba->last_completion_time = jiffies;
9399627f
JS		 536 /* Set up error attention (ERATT) polling timer */
537 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
dea3101e 538
a0c87cbd
JS		 539 if (phba->hba_flag & LINK_DISABLED) {
540 lpfc_printf_log(phba,
541 KERN_ERR, LOG_INIT,
542 "2598 Adapter Link is disabled.\n");
543 lpfc_down_link(phba, pmb);
544 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
545 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
546 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
547 lpfc_printf_log(phba,
548 KERN_ERR, LOG_INIT,
549 "2599 Adapter failed to issue DOWN_LINK"
550 " mbox command rc 0x%x\n", rc);
551
552 mempool_free(pmb, phba->mbox_mem_pool);
553 return -EIO;
554 }
e40a02c1 555 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
a0c87cbd
JS		 556 lpfc_init_link(phba, pmb, phba->cfg_topology,
557 phba->cfg_link_speed);
558 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
559 lpfc_set_loopback_flag(phba);
560 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
561 if (rc != MBX_SUCCESS) {
562 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 563 "0454 Adapter failed to init, mbxCmd x%x "
dea3101e 564 "INIT_LINK, mbxStatus x%x\n",
dea3101e
JB		 565 mb->mbxCommand, mb->mbxStatus);
566
a0c87cbd
JS		 567 /* Clear all interrupt enable conditions */
568 writel(0, phba->HCregaddr);
569 readl(phba->HCregaddr); /* flush */
570 /* Clear all pending interrupts */
571 writel(0xffffffff, phba->HAregaddr);
572 readl(phba->HAregaddr); /* flush */
dea3101e 573
a0c87cbd
JS		 574 phba->link_state = LPFC_HBA_ERROR;
575 if (rc != MBX_BUSY)
576 mempool_free(pmb, phba->mbox_mem_pool);
577 return -EIO;
578 }
dea3101e
JB		 579 }
580 /* MBOX buffer will be freed in mbox compl */
57127f15 581 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9f1177a3
JS		 582 if (!pmb) {
583 phba->link_state = LPFC_HBA_ERROR;
584 return -ENOMEM;
585 }
586
57127f15
JS		 587 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
588 pmb->mbox_cmpl = lpfc_config_async_cmpl;
589 pmb->vport = phba->pport;
590 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
dea3101e 591
57127f15
JS		 592 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
593 lpfc_printf_log(phba,
594 KERN_ERR,
595 LOG_INIT,
596 "0456 Adapter failed to issue "
e4e74273 597 "ASYNCEVT_ENABLE mbox status x%x\n",
57127f15
JS		 598 rc);
599 mempool_free(pmb, phba->mbox_mem_pool);
600 }
97207482
JS		 601
602 /* Get Option rom version */
603 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9f1177a3
JS		 604 if (!pmb) {
605 phba->link_state = LPFC_HBA_ERROR;
606 return -ENOMEM;
607 }
608
97207482
JS		 609 lpfc_dump_wakeup_param(phba, pmb);
610 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
611 pmb->vport = phba->pport;
612 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
613
614 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
615 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
e4e74273 616 "to get Option ROM version status x%x\n", rc);
97207482
JS		 617 mempool_free(pmb, phba->mbox_mem_pool);
618 }
619
d7c255b2 620 return 0;
ce8b3ce5
JS		 621}
622
84d1b006
JS		 623/**
624 * lpfc_hba_init_link - Initialize the FC link
625 * @phba: pointer to lpfc hba data structure.
6e7288d9 626 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
84d1b006
JS		 627 *
628 * This routine will issue the INIT_LINK mailbox command call.
629 * It is available to other drivers through the lpfc_hba data
630 * structure for use as a delayed link up mechanism with the
631 * module parameter lpfc_suppress_link_up.
632 *
633 * Return code
634 * 0 - success
635 * Any other value - error
636 **/
637int
6e7288d9 638lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
84d1b006
JS		 639{
640 struct lpfc_vport *vport = phba->pport;
641 LPFC_MBOXQ_t *pmb;
642 MAILBOX_t *mb;
643 int rc;
644
645 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
646 if (!pmb) {
647 phba->link_state = LPFC_HBA_ERROR;
648 return -ENOMEM;
649 }
650 mb = &pmb->u.mb;
651 pmb->vport = vport;
652
76a95d75 653 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
84d1b006
JS		 654 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
655 lpfc_set_loopback_flag(phba);
6e7288d9 656 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
76a95d75 657 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
84d1b006
JS		 658 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
659 "0498 Adapter failed to init, mbxCmd x%x "
660 "INIT_LINK, mbxStatus x%x\n",
661 mb->mbxCommand, mb->mbxStatus);
76a95d75
JS		 662 if (phba->sli_rev <= LPFC_SLI_REV3) {
663 /* Clear all interrupt enable conditions */
664 writel(0, phba->HCregaddr);
665 readl(phba->HCregaddr); /* flush */
666 /* Clear all pending interrupts */
667 writel(0xffffffff, phba->HAregaddr);
668 readl(phba->HAregaddr); /* flush */
669 }
84d1b006 670 phba->link_state = LPFC_HBA_ERROR;
6e7288d9 671 if (rc != MBX_BUSY || flag == MBX_POLL)
84d1b006
JS		 672 mempool_free(pmb, phba->mbox_mem_pool);
673 return -EIO;
674 }
e40a02c1 675 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
6e7288d9
JS		 676 if (flag == MBX_POLL)
677 mempool_free(pmb, phba->mbox_mem_pool);
84d1b006
JS		 678
679 return 0;
680}
681
682/**
683 * lpfc_hba_down_link - this routine downs the FC link
6e7288d9
JS		 684 * @phba: pointer to lpfc hba data structure.
685 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
84d1b006
JS		 686 *
687 * This routine will issue the DOWN_LINK mailbox command call.
688 * It is available to other drivers through the lpfc_hba data
689 * structure for use to stop the link.
690 *
691 * Return code
692 * 0 - success
693 * Any other value - error
694 **/
695int
6e7288d9 696lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
84d1b006
JS		 697{
698 LPFC_MBOXQ_t *pmb;
699 int rc;
700
701 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
702 if (!pmb) {
703 phba->link_state = LPFC_HBA_ERROR;
704 return -ENOMEM;
705 }
706
707 lpfc_printf_log(phba,
708 KERN_ERR, LOG_INIT,
709 "0491 Adapter Link is disabled.\n");
710 lpfc_down_link(phba, pmb);
711 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
6e7288d9 712 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
84d1b006
JS		 713 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
714 lpfc_printf_log(phba,
715 KERN_ERR, LOG_INIT,
716 "2522 Adapter failed to issue DOWN_LINK"
717 " mbox command rc 0x%x\n", rc);
718
719 mempool_free(pmb, phba->mbox_mem_pool);
720 return -EIO;
721 }
6e7288d9
JS		 722 if (flag == MBX_POLL)
723 mempool_free(pmb, phba->mbox_mem_pool);
724
84d1b006
JS		 725 return 0;
726}
727
e59058c4 728/**
3621a710 729 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
e59058c4
JS		 730 * @phba: pointer to lpfc HBA data structure.
731 *
732 * This routine will do LPFC uninitialization before the HBA is reset when
733 * bringing down the SLI Layer.
734 *
735 * Return codes
736 * 0 - success.
737 * Any other value - error.
738 **/
dea3101e 739int
2e0fef85 740lpfc_hba_down_prep(struct lpfc_hba *phba)
dea3101e 741{
1b32f6aa
JS		 742 struct lpfc_vport **vports;
743 int i;
3772a991
JS		 744
745 if (phba->sli_rev <= LPFC_SLI_REV3) {
746 /* Disable interrupts */
747 writel(0, phba->HCregaddr);
748 readl(phba->HCregaddr); /* flush */
749 }
dea3101e 750
1b32f6aa
JS		 751 if (phba->pport->load_flag & FC_UNLOADING)
752 lpfc_cleanup_discovery_resources(phba->pport);
753 else {
754 vports = lpfc_create_vport_work_array(phba);
755 if (vports != NULL)
3772a991
JS		 756 for (i = 0; i <= phba->max_vports &&
757 vports[i] != NULL; i++)
1b32f6aa
JS		 758 lpfc_cleanup_discovery_resources(vports[i]);
759 lpfc_destroy_vport_work_array(phba, vports);
7f5f3d0d
JS		 760 }
761 return 0;
dea3101e
JB		 762}
763
e59058c4 764/**
3772a991 765 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
e59058c4
JS		 766 * @phba: pointer to lpfc HBA data structure.
767 *
768 * This routine will do uninitialization after the HBA is reset when bring
769 * down the SLI Layer.
770 *
771 * Return codes
af901ca1 772 * 0 - success.
e59058c4
JS		 773 * Any other value - error.
774 **/
3772a991
JS		 775static int
776lpfc_hba_down_post_s3(struct lpfc_hba *phba)
41415862
JW		 777{
778 struct lpfc_sli *psli = &phba->sli;
779 struct lpfc_sli_ring *pring;
780 struct lpfc_dmabuf *mp, *next_mp;
09372820 781 LIST_HEAD(completions);
41415862
JW		 782 int i;
783
92d7f7b0
JS		 784 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
785 lpfc_sli_hbqbuf_free_all(phba);
786 else {
787 /* Cleanup preposted buffers on the ELS ring */
788 pring = &psli->ring[LPFC_ELS_RING];
789 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
790 list_del(&mp->list);
791 pring->postbufq_cnt--;
792 lpfc_mbuf_free(phba, mp->virt, mp->phys);
793 kfree(mp);
794 }
41415862
JW		 795 }
796
09372820 797 spin_lock_irq(&phba->hbalock);
41415862
JW		 798 for (i = 0; i < psli->num_rings; i++) {
799 pring = &psli->ring[i];
09372820
JS		 800
801 /* At this point in time the HBA is either reset or DOA. Either
802 * way, nothing should be on txcmplq as it will NEVER complete.
803 */
804 list_splice_init(&pring->txcmplq, &completions);
805 pring->txcmplq_cnt = 0;
806 spin_unlock_irq(&phba->hbalock);
807
a257bf90
JS		 808 /* Cancel all the IOCBs from the completions list */
809 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
810 IOERR_SLI_ABORTED);
09372820 811
41415862 812 lpfc_sli_abort_iocb_ring(phba, pring);
09372820 813 spin_lock_irq(&phba->hbalock);
41415862 814 }
09372820 815 spin_unlock_irq(&phba->hbalock);
41415862
JW		 816
817 return 0;
818}
5af5eee7 819
da0436e9
JS		 820/**
821 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
822 * @phba: pointer to lpfc HBA data structure.
823 *
824 * This routine will do uninitialization after the HBA is reset when bring
825 * down the SLI Layer.
826 *
827 * Return codes
af901ca1 828 * 0 - success.
da0436e9
JS		 829 * Any other value - error.
830 **/
831static int
832lpfc_hba_down_post_s4(struct lpfc_hba *phba)
833{
834 struct lpfc_scsi_buf *psb, *psb_next;
835 LIST_HEAD(aborts);
836 int ret;
837 unsigned long iflag = 0;
0f65ff68
JS		 838 struct lpfc_sglq *sglq_entry = NULL;
839
da0436e9
JS		 840 ret = lpfc_hba_down_post_s3(phba);
841 if (ret)
842 return ret;
843 /* At this point in time the HBA is either reset or DOA. Either
844 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
845 * on the lpfc_sgl_list so that it can either be freed if the
846 * driver is unloading or reposted if the driver is restarting
847 * the port.
848 */
849 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
850 /* scsl_buf_list */
851 /* abts_sgl_list_lock required because worker thread uses this
852 * list.
853 */
854 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
0f65ff68
JS		 855 list_for_each_entry(sglq_entry,
856 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
857 sglq_entry->state = SGL_FREED;
858
da0436e9
JS		 859 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
860 &phba->sli4_hba.lpfc_sgl_list);
861 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
862 /* abts_scsi_buf_list_lock required because worker thread uses this
863 * list.
864 */
865 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
866 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
867 &aborts);
868 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
869 spin_unlock_irq(&phba->hbalock);
870
871 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
872 psb->pCmd = NULL;
873 psb->status = IOSTAT_SUCCESS;
874 }
875 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
876 list_splice(&aborts, &phba->lpfc_scsi_buf_list);
877 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
878 return 0;
879}
880
881/**
882 * lpfc_hba_down_post - Wrapper func for hba down post routine
883 * @phba: pointer to lpfc HBA data structure.
884 *
885 * This routine wraps the actual SLI3 or SLI4 routine for performing
886 * uninitialization after the HBA is reset when bring down the SLI Layer.
887 *
888 * Return codes
af901ca1 889 * 0 - success.
da0436e9
JS		 890 * Any other value - error.
891 **/
892int
893lpfc_hba_down_post(struct lpfc_hba *phba)
894{
895 return (*phba->lpfc_hba_down_post)(phba);
896}
41415862 897
e59058c4 898/**
3621a710 899 * lpfc_hb_timeout - The HBA-timer timeout handler
e59058c4
JS		 900 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
901 *
902 * This is the HBA-timer timeout handler registered to the lpfc driver. When
903 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
904 * work-port-events bitmap and the worker thread is notified. This timeout
905 * event will be used by the worker thread to invoke the actual timeout
906 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
907 * be performed in the timeout handler and the HBA timeout event bit shall
908 * be cleared by the worker thread after it has taken the event bitmap out.
909 **/
a6ababd2 910static void
858c9f6c
JS		 911lpfc_hb_timeout(unsigned long ptr)
912{
913 struct lpfc_hba *phba;
5e9d9b82 914 uint32_t tmo_posted;
858c9f6c
JS		 915 unsigned long iflag;
916
917 phba = (struct lpfc_hba *)ptr;
9399627f
JS		 918
919 /* Check for heart beat timeout conditions */
858c9f6c 920 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
5e9d9b82
JS		 921 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
922 if (!tmo_posted)
858c9f6c
JS		 923 phba->pport->work_port_events |= WORKER_HB_TMO;
924 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
925
9399627f 926 /* Tell the worker thread there is work to do */
5e9d9b82
JS		 927 if (!tmo_posted)
928 lpfc_worker_wake_up(phba);
858c9f6c
JS		 929 return;
930}
931
19ca7609
JS		 932/**
933 * lpfc_rrq_timeout - The RRQ-timer timeout handler
934 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
935 *
936 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
937 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
938 * work-port-events bitmap and the worker thread is notified. This timeout
939 * event will be used by the worker thread to invoke the actual timeout
940 * handler routine, lpfc_rrq_handler. Any periodical operations will
941 * be performed in the timeout handler and the RRQ timeout event bit shall
942 * be cleared by the worker thread after it has taken the event bitmap out.
943 **/
944static void
945lpfc_rrq_timeout(unsigned long ptr)
946{
947 struct lpfc_hba *phba;
19ca7609
JS		 948 unsigned long iflag;
949
950 phba = (struct lpfc_hba *)ptr;
951 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1151e3ec 952 phba->hba_flag |= HBA_RRQ_ACTIVE;
19ca7609 953 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1151e3ec 954 lpfc_worker_wake_up(phba);
19ca7609
JS		 955}
956
e59058c4 957/**
3621a710 958 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
e59058c4
JS		 959 * @phba: pointer to lpfc hba data structure.
960 * @pmboxq: pointer to the driver internal queue element for mailbox command.
961 *
962 * This is the callback function to the lpfc heart-beat mailbox command.
963 * If configured, the lpfc driver issues the heart-beat mailbox command to
964 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
965 * heart-beat mailbox command is issued, the driver shall set up heart-beat
966 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
967 * heart-beat outstanding state. Once the mailbox command comes back and
968 * no error conditions detected, the heart-beat mailbox command timer is
969 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
970 * state is cleared for the next heart-beat. If the timer expired with the
971 * heart-beat outstanding state set, the driver will put the HBA offline.
972 **/
858c9f6c
JS		 973static void
974lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
975{
976 unsigned long drvr_flag;
977
978 spin_lock_irqsave(&phba->hbalock, drvr_flag);
979 phba->hb_outstanding = 0;
980 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
981
9399627f 982 /* Check and reset heart-beat timer is necessary */
858c9f6c
JS		 983 mempool_free(pmboxq, phba->mbox_mem_pool);
984 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
985 !(phba->link_state == LPFC_HBA_ERROR) &&
51ef4c26 986 !(phba->pport->load_flag & FC_UNLOADING))
858c9f6c
JS		 987 mod_timer(&phba->hb_tmofunc,
988 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
989 return;
990}
991
e59058c4 992/**
3621a710 993 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
e59058c4
JS		 994 * @phba: pointer to lpfc hba data structure.
995 *
996 * This is the actual HBA-timer timeout handler to be invoked by the worker
997 * thread whenever the HBA timer fired and HBA-timeout event posted. This
998 * handler performs any periodic operations needed for the device. If such
999 * periodic event has already been attended to either in the interrupt handler
1000 * or by processing slow-ring or fast-ring events within the HBA-timer
1001 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1002 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1003 * is configured and there is no heart-beat mailbox command outstanding, a
1004 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1005 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1006 * to offline.
1007 **/
858c9f6c
JS		 1008void
1009lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1010{
45ed1190 1011 struct lpfc_vport **vports;
858c9f6c 1012 LPFC_MBOXQ_t *pmboxq;
0ff10d46 1013 struct lpfc_dmabuf *buf_ptr;
45ed1190 1014 int retval, i;
858c9f6c 1015 struct lpfc_sli *psli = &phba->sli;
0ff10d46 1016 LIST_HEAD(completions);
858c9f6c 1017
45ed1190
JS		 1018 vports = lpfc_create_vport_work_array(phba);
1019 if (vports != NULL)
1020 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1021 lpfc_rcv_seq_check_edtov(vports[i]);
1022 lpfc_destroy_vport_work_array(phba, vports);
1023
858c9f6c 1024 if ((phba->link_state == LPFC_HBA_ERROR) ||
51ef4c26 1025 (phba->pport->load_flag & FC_UNLOADING) ||
858c9f6c
JS		 1026 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1027 return;
1028
1029 spin_lock_irq(&phba->pport->work_port_lock);
858c9f6c
JS		 1030
1031 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1032 jiffies)) {
1033 spin_unlock_irq(&phba->pport->work_port_lock);
1034 if (!phba->hb_outstanding)
1035 mod_timer(&phba->hb_tmofunc,
1036 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1037 else
1038 mod_timer(&phba->hb_tmofunc,
1039 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1040 return;
1041 }
1042 spin_unlock_irq(&phba->pport->work_port_lock);
1043
0ff10d46
JS		 1044 if (phba->elsbuf_cnt &&
1045 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1046 spin_lock_irq(&phba->hbalock);
1047 list_splice_init(&phba->elsbuf, &completions);
1048 phba->elsbuf_cnt = 0;
1049 phba->elsbuf_prev_cnt = 0;
1050 spin_unlock_irq(&phba->hbalock);
1051
1052 while (!list_empty(&completions)) {
1053 list_remove_head(&completions, buf_ptr,
1054 struct lpfc_dmabuf, list);
1055 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1056 kfree(buf_ptr);
1057 }
1058 }
1059 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1060
858c9f6c 1061 /* If there is no heart beat outstanding, issue a heartbeat command */
13815c83
JS		 1062 if (phba->cfg_enable_hba_heartbeat) {
1063 if (!phba->hb_outstanding) {
bc73905a
JS		 1064 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1065 (list_empty(&psli->mboxq))) {
1066 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1067 GFP_KERNEL);
1068 if (!pmboxq) {
1069 mod_timer(&phba->hb_tmofunc,
1070 jiffies +
1071 HZ * LPFC_HB_MBOX_INTERVAL);
1072 return;
1073 }
1074
1075 lpfc_heart_beat(phba, pmboxq);
1076 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1077 pmboxq->vport = phba->pport;
1078 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1079 MBX_NOWAIT);
1080
1081 if (retval != MBX_BUSY &&
1082 retval != MBX_SUCCESS) {
1083 mempool_free(pmboxq,
1084 phba->mbox_mem_pool);
1085 mod_timer(&phba->hb_tmofunc,
1086 jiffies +
1087 HZ * LPFC_HB_MBOX_INTERVAL);
1088 return;
1089 }
1090 phba->skipped_hb = 0;
1091 phba->hb_outstanding = 1;
1092 } else if (time_before_eq(phba->last_completion_time,
1093 phba->skipped_hb)) {
1094 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1095 "2857 Last completion time not "
1096 " updated in %d ms\n",
1097 jiffies_to_msecs(jiffies
1098 - phba->last_completion_time));
1099 } else
1100 phba->skipped_hb = jiffies;
1101
858c9f6c 1102 mod_timer(&phba->hb_tmofunc,
13815c83 1103 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
858c9f6c 1104 return;
13815c83
JS		 1105 } else {
1106 /*
1107 * If heart beat timeout called with hb_outstanding set
dcf2a4e0
JS		 1108 * we need to give the hb mailbox cmd a chance to
1109 * complete or TMO.
13815c83 1110 */
dcf2a4e0
JS		 1111 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1112 "0459 Adapter heartbeat still out"
1113 "standing:last compl time was %d ms.\n",
1114 jiffies_to_msecs(jiffies
1115 - phba->last_completion_time));
1116 mod_timer(&phba->hb_tmofunc,
1117 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
858c9f6c 1118 }
858c9f6c
JS		 1119 }
1120}
1121
e59058c4 1122/**
3621a710 1123 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
e59058c4
JS		 1124 * @phba: pointer to lpfc hba data structure.
1125 *
1126 * This routine is called to bring the HBA offline when HBA hardware error
1127 * other than Port Error 6 has been detected.
1128 **/
09372820
JS		 1129static void
1130lpfc_offline_eratt(struct lpfc_hba *phba)
1131{
1132 struct lpfc_sli *psli = &phba->sli;
1133
1134 spin_lock_irq(&phba->hbalock);
f4b4c68f 1135 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
09372820
JS		 1136 spin_unlock_irq(&phba->hbalock);
1137 lpfc_offline_prep(phba);
1138
1139 lpfc_offline(phba);
1140 lpfc_reset_barrier(phba);
f4b4c68f 1141 spin_lock_irq(&phba->hbalock);
09372820 1142 lpfc_sli_brdreset(phba);
f4b4c68f 1143 spin_unlock_irq(&phba->hbalock);
09372820
JS		 1144 lpfc_hba_down_post(phba);
1145 lpfc_sli_brdready(phba, HS_MBRDY);
1146 lpfc_unblock_mgmt_io(phba);
1147 phba->link_state = LPFC_HBA_ERROR;
1148 return;
1149}
1150
da0436e9
JS		 1151/**
1152 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1153 * @phba: pointer to lpfc hba data structure.
1154 *
1155 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1156 * other than Port Error 6 has been detected.
1157 **/
1158static void
1159lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1160{
1161 lpfc_offline_prep(phba);
1162 lpfc_offline(phba);
1163 lpfc_sli4_brdreset(phba);
1164 lpfc_hba_down_post(phba);
1165 lpfc_sli4_post_status_check(phba);
1166 lpfc_unblock_mgmt_io(phba);
1167 phba->link_state = LPFC_HBA_ERROR;
1168}
1169
a257bf90
JS		 1170/**
1171 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1172 * @phba: pointer to lpfc hba data structure.
1173 *
1174 * This routine is invoked to handle the deferred HBA hardware error
1175 * conditions. This type of error is indicated by HBA by setting ER1
1176 * and another ER bit in the host status register. The driver will
1177 * wait until the ER1 bit clears before handling the error condition.
1178 **/
1179static void
1180lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1181{
1182 uint32_t old_host_status = phba->work_hs;
1183 struct lpfc_sli_ring *pring;
1184 struct lpfc_sli *psli = &phba->sli;
1185
f4b4c68f
JS		 1186 /* If the pci channel is offline, ignore possible errors,
1187 * since we cannot communicate with the pci card anyway.
1188 */
1189 if (pci_channel_offline(phba->pcidev)) {
1190 spin_lock_irq(&phba->hbalock);
1191 phba->hba_flag &= ~DEFER_ERATT;
1192 spin_unlock_irq(&phba->hbalock);
1193 return;
1194 }
1195
a257bf90
JS		 1196 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1197 "0479 Deferred Adapter Hardware Error "
1198 "Data: x%x x%x x%x\n",
1199 phba->work_hs,
1200 phba->work_status[0], phba->work_status[1]);
1201
1202 spin_lock_irq(&phba->hbalock);
f4b4c68f 1203 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
a257bf90
JS		 1204 spin_unlock_irq(&phba->hbalock);
1205
1206
1207 /*
1208 * Firmware stops when it triggred erratt. That could cause the I/Os
1209 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1210 * SCSI layer retry it after re-establishing link.
1211 */
1212 pring = &psli->ring[psli->fcp_ring];
1213 lpfc_sli_abort_iocb_ring(phba, pring);
1214
1215 /*
1216 * There was a firmware error. Take the hba offline and then
1217 * attempt to restart it.
1218 */
1219 lpfc_offline_prep(phba);
1220 lpfc_offline(phba);
1221
1222 /* Wait for the ER1 bit to clear.*/
1223 while (phba->work_hs & HS_FFER1) {
1224 msleep(100);
1225 phba->work_hs = readl(phba->HSregaddr);
1226 /* If driver is unloading let the worker thread continue */
1227 if (phba->pport->load_flag & FC_UNLOADING) {
1228 phba->work_hs = 0;
1229 break;
1230 }
1231 }
1232
1233 /*
1234 * This is to ptrotect against a race condition in which
1235 * first write to the host attention register clear the
1236 * host status register.
1237 */
1238 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1239 phba->work_hs = old_host_status & ~HS_FFER1;
1240
3772a991 1241 spin_lock_irq(&phba->hbalock);
a257bf90 1242 phba->hba_flag &= ~DEFER_ERATT;
3772a991 1243 spin_unlock_irq(&phba->hbalock);
a257bf90
JS		 1244 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1245 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1246}
1247
3772a991
JS		 1248static void
1249lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1250{
1251 struct lpfc_board_event_header board_event;
1252 struct Scsi_Host *shost;
1253
1254 board_event.event_type = FC_REG_BOARD_EVENT;
1255 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1256 shost = lpfc_shost_from_vport(phba->pport);
1257 fc_host_post_vendor_event(shost, fc_get_event_number(),
1258 sizeof(board_event),
1259 (char *) &board_event,
1260 LPFC_NL_VENDOR_ID);
1261}
1262
e59058c4 1263/**
3772a991 1264 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
e59058c4
JS		 1265 * @phba: pointer to lpfc hba data structure.
1266 *
1267 * This routine is invoked to handle the following HBA hardware error
1268 * conditions:
1269 * 1 - HBA error attention interrupt
1270 * 2 - DMA ring index out of range
1271 * 3 - Mailbox command came back as unknown
1272 **/
3772a991
JS		 1273static void
1274lpfc_handle_eratt_s3(struct lpfc_hba *phba)
dea3101e 1275{
2e0fef85 1276 struct lpfc_vport *vport = phba->pport;
2e0fef85 1277 struct lpfc_sli *psli = &phba->sli;
dea3101e 1278 struct lpfc_sli_ring *pring;
d2873e4c 1279 uint32_t event_data;
57127f15
JS		 1280 unsigned long temperature;
1281 struct temp_event temp_event_data;
92d7f7b0 1282 struct Scsi_Host *shost;
2e0fef85 1283
8d63f375 1284 /* If the pci channel is offline, ignore possible errors,
3772a991
JS		 1285 * since we cannot communicate with the pci card anyway.
1286 */
1287 if (pci_channel_offline(phba->pcidev)) {
1288 spin_lock_irq(&phba->hbalock);
1289 phba->hba_flag &= ~DEFER_ERATT;
1290 spin_unlock_irq(&phba->hbalock);
8d63f375 1291 return;
3772a991
JS		 1292 }
1293
13815c83
JS		 1294 /* If resets are disabled then leave the HBA alone and return */
1295 if (!phba->cfg_enable_hba_reset)
1296 return;
dea3101e 1297
ea2151b4 1298 /* Send an internal error event to mgmt application */
3772a991 1299 lpfc_board_errevt_to_mgmt(phba);
ea2151b4 1300
a257bf90
JS		 1301 if (phba->hba_flag & DEFER_ERATT)
1302 lpfc_handle_deferred_eratt(phba);
1303
dcf2a4e0
JS		 1304 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1305 if (phba->work_hs & HS_FFER6)
1306 /* Re-establishing Link */
1307 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1308 "1301 Re-establishing Link "
1309 "Data: x%x x%x x%x\n",
1310 phba->work_hs, phba->work_status[0],
1311 phba->work_status[1]);
1312 if (phba->work_hs & HS_FFER8)
1313 /* Device Zeroization */
1314 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1315 "2861 Host Authentication device "
1316 "zeroization Data:x%x x%x x%x\n",
1317 phba->work_hs, phba->work_status[0],
1318 phba->work_status[1]);
58da1ffb 1319
92d7f7b0 1320 spin_lock_irq(&phba->hbalock);
f4b4c68f 1321 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
92d7f7b0 1322 spin_unlock_irq(&phba->hbalock);
dea3101e
JB		 1323
1324 /*
1325 * Firmware stops when it triggled erratt with HS_FFER6.
1326 * That could cause the I/Os dropped by the firmware.
1327 * Error iocb (I/O) on txcmplq and let the SCSI layer
1328 * retry it after re-establishing link.
1329 */
1330 pring = &psli->ring[psli->fcp_ring];
1331 lpfc_sli_abort_iocb_ring(phba, pring);
1332
dea3101e
JB		 1333 /*
1334 * There was a firmware error. Take the hba offline and then
1335 * attempt to restart it.
1336 */
46fa311e 1337 lpfc_offline_prep(phba);
dea3101e 1338 lpfc_offline(phba);
41415862 1339 lpfc_sli_brdrestart(phba);
dea3101e 1340 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
46fa311e 1341 lpfc_unblock_mgmt_io(phba);
dea3101e
JB		 1342 return;
1343 }
46fa311e 1344 lpfc_unblock_mgmt_io(phba);
57127f15
JS		 1345 } else if (phba->work_hs & HS_CRIT_TEMP) {
1346 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1347 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1348 temp_event_data.event_code = LPFC_CRIT_TEMP;
1349 temp_event_data.data = (uint32_t)temperature;
1350
1351 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
d7c255b2 1352 "0406 Adapter maximum temperature exceeded "
57127f15
JS		 1353 "(%ld), taking this port offline "
1354 "Data: x%x x%x x%x\n",
1355 temperature, phba->work_hs,
1356 phba->work_status[0], phba->work_status[1]);
1357
1358 shost = lpfc_shost_from_vport(phba->pport);
1359 fc_host_post_vendor_event(shost, fc_get_event_number(),
1360 sizeof(temp_event_data),
1361 (char *) &temp_event_data,
1362 SCSI_NL_VID_TYPE_PCI
1363 | PCI_VENDOR_ID_EMULEX);
1364
7af67051 1365 spin_lock_irq(&phba->hbalock);
7af67051
JS		 1366 phba->over_temp_state = HBA_OVER_TEMP;
1367 spin_unlock_irq(&phba->hbalock);
09372820 1368 lpfc_offline_eratt(phba);
57127f15 1369
dea3101e
JB		 1370 } else {
1371 /* The if clause above forces this code path when the status
9399627f
JS		 1372 * failure is a value other than FFER6. Do not call the offline
1373 * twice. This is the adapter hardware error path.
dea3101e
JB		 1374 */
1375 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 1376 "0457 Adapter Hardware Error "
dea3101e 1377 "Data: x%x x%x x%x\n",
e8b62011 1378 phba->work_hs,
dea3101e
JB		 1379 phba->work_status[0], phba->work_status[1]);
1380
d2873e4c 1381 event_data = FC_REG_DUMP_EVENT;
92d7f7b0 1382 shost = lpfc_shost_from_vport(vport);
2e0fef85 1383 fc_host_post_vendor_event(shost, fc_get_event_number(),
d2873e4c
JS		 1384 sizeof(event_data), (char *) &event_data,
1385 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1386
09372820 1387 lpfc_offline_eratt(phba);
dea3101e 1388 }
9399627f 1389 return;
dea3101e
JB		 1390}
1391
da0436e9
JS		 1392/**
1393 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1394 * @phba: pointer to lpfc hba data structure.
1395 *
1396 * This routine is invoked to handle the SLI4 HBA hardware error attention
1397 * conditions.
1398 **/
1399static void
1400lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1401{
1402 struct lpfc_vport *vport = phba->pport;
1403 uint32_t event_data;
1404 struct Scsi_Host *shost;
2fcee4bf
JS		 1405 uint32_t if_type;
1406 struct lpfc_register portstat_reg;
da0436e9
JS		 1407
1408 /* If the pci channel is offline, ignore possible errors, since
1409 * we cannot communicate with the pci card anyway.
1410 */
1411 if (pci_channel_offline(phba->pcidev))
1412 return;
1413 /* If resets are disabled then leave the HBA alone and return */
1414 if (!phba->cfg_enable_hba_reset)
1415 return;
1416
1417 /* Send an internal error event to mgmt application */
1418 lpfc_board_errevt_to_mgmt(phba);
1419
1420 /* For now, the actual action for SLI4 device handling is not
1421 * specified yet, just treated it as adaptor hardware failure
1422 */
da0436e9
JS		 1423 event_data = FC_REG_DUMP_EVENT;
1424 shost = lpfc_shost_from_vport(vport);
1425 fc_host_post_vendor_event(shost, fc_get_event_number(),
1426 sizeof(event_data), (char *) &event_data,
1427 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1428
2fcee4bf
JS		 1429 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1430 switch (if_type) {
1431 case LPFC_SLI_INTF_IF_TYPE_0:
1432 lpfc_sli4_offline_eratt(phba);
1433 break;
1434 case LPFC_SLI_INTF_IF_TYPE_2:
1435 portstat_reg.word0 =
1436 readl(phba->sli4_hba.u.if_type2.STATUSregaddr);
1437
1438 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1439 /* TODO: Register for Overtemp async events. */
1440 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1441 "2889 Port Overtemperature event, "
1442 "taking port\n");
1443 spin_lock_irq(&phba->hbalock);
1444 phba->over_temp_state = HBA_OVER_TEMP;
1445 spin_unlock_irq(&phba->hbalock);
1446 lpfc_sli4_offline_eratt(phba);
1447 return;
1448 }
1449 if (bf_get(lpfc_sliport_status_rn, &portstat_reg)) {
1450 /*
1451 * TODO: Attempt port recovery via a port reset.
1452 * When fully implemented, the driver should
1453 * attempt to recover the port here and return.
1454 * For now, log an error and take the port offline.
1455 */
1456 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1457 "2887 Port Error: Attempting "
1458 "Port Recovery\n");
1459 }
1460 lpfc_sli4_offline_eratt(phba);
1461 break;
1462 case LPFC_SLI_INTF_IF_TYPE_1:
1463 default:
1464 break;
1465 }
da0436e9
JS		 1466}
1467
1468/**
1469 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1470 * @phba: pointer to lpfc HBA data structure.
1471 *
1472 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1473 * routine from the API jump table function pointer from the lpfc_hba struct.
1474 *
1475 * Return codes
af901ca1 1476 * 0 - success.
da0436e9
JS		 1477 * Any other value - error.
1478 **/
1479void
1480lpfc_handle_eratt(struct lpfc_hba *phba)
1481{
1482 (*phba->lpfc_handle_eratt)(phba);
1483}
1484
e59058c4 1485/**
3621a710 1486 * lpfc_handle_latt - The HBA link event handler
e59058c4
JS		 1487 * @phba: pointer to lpfc hba data structure.
1488 *
1489 * This routine is invoked from the worker thread to handle a HBA host
1490 * attention link event.
1491 **/
dea3101e 1492void
2e0fef85 1493lpfc_handle_latt(struct lpfc_hba *phba)
dea3101e 1494{
2e0fef85
JS		 1495 struct lpfc_vport *vport = phba->pport;
1496 struct lpfc_sli *psli = &phba->sli;
dea3101e
JB		 1497 LPFC_MBOXQ_t *pmb;
1498 volatile uint32_t control;
1499 struct lpfc_dmabuf *mp;
09372820 1500 int rc = 0;
dea3101e
JB		 1501
1502 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
09372820
JS		 1503 if (!pmb) {
1504 rc = 1;
dea3101e 1505 goto lpfc_handle_latt_err_exit;
09372820 1506 }
dea3101e
JB		 1507
1508 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
09372820
JS		 1509 if (!mp) {
1510 rc = 2;
dea3101e 1511 goto lpfc_handle_latt_free_pmb;
09372820 1512 }
dea3101e
JB		 1513
1514 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
09372820
JS		 1515 if (!mp->virt) {
1516 rc = 3;
dea3101e 1517 goto lpfc_handle_latt_free_mp;
09372820 1518 }
dea3101e 1519
6281bfe0 1520 /* Cleanup any outstanding ELS commands */
549e55cd 1521 lpfc_els_flush_all_cmd(phba);
dea3101e
JB		 1522
1523 psli->slistat.link_event++;
76a95d75
JS		 1524 lpfc_read_topology(phba, pmb, mp);
1525 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2e0fef85 1526 pmb->vport = vport;
0d2b6b83
JS		 1527 /* Block ELS IOCBs until we have processed this mbox command */
1528 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
0b727fea 1529 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
09372820
JS		 1530 if (rc == MBX_NOT_FINISHED) {
1531 rc = 4;
14691150 1532 goto lpfc_handle_latt_free_mbuf;
09372820 1533 }
dea3101e
JB		 1534
1535 /* Clear Link Attention in HA REG */
2e0fef85 1536 spin_lock_irq(&phba->hbalock);
dea3101e
JB		 1537 writel(HA_LATT, phba->HAregaddr);
1538 readl(phba->HAregaddr); /* flush */
2e0fef85 1539 spin_unlock_irq(&phba->hbalock);
dea3101e
JB		 1540
1541 return;
1542
14691150 1543lpfc_handle_latt_free_mbuf:
0d2b6b83 1544 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
14691150 1545 lpfc_mbuf_free(phba, mp->virt, mp->phys);
dea3101e
JB		 1546lpfc_handle_latt_free_mp:
1547 kfree(mp);
1548lpfc_handle_latt_free_pmb:
1dcb58e5 1549 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e
JB		 1550lpfc_handle_latt_err_exit:
1551 /* Enable Link attention interrupts */
2e0fef85 1552 spin_lock_irq(&phba->hbalock);
dea3101e
JB		 1553 psli->sli_flag |= LPFC_PROCESS_LA;
1554 control = readl(phba->HCregaddr);
1555 control |= HC_LAINT_ENA;
1556 writel(control, phba->HCregaddr);
1557 readl(phba->HCregaddr); /* flush */
1558
1559 /* Clear Link Attention in HA REG */
1560 writel(HA_LATT, phba->HAregaddr);
1561 readl(phba->HAregaddr); /* flush */
2e0fef85 1562 spin_unlock_irq(&phba->hbalock);
dea3101e 1563 lpfc_linkdown(phba);
2e0fef85 1564 phba->link_state = LPFC_HBA_ERROR;
dea3101e 1565
09372820
JS		 1566 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1567 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
dea3101e
JB		 1568
1569 return;
1570}
1571
e59058c4 1572/**
3621a710 1573 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
e59058c4
JS		 1574 * @phba: pointer to lpfc hba data structure.
1575 * @vpd: pointer to the vital product data.
1576 * @len: length of the vital product data in bytes.
1577 *
1578 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1579 * an array of characters. In this routine, the ModelName, ProgramType, and
1580 * ModelDesc, etc. fields of the phba data structure will be populated.
1581 *
1582 * Return codes
1583 * 0 - pointer to the VPD passed in is NULL
1584 * 1 - success
1585 **/
3772a991 1586int
2e0fef85 1587lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
dea3101e
JB		 1588{
1589 uint8_t lenlo, lenhi;
07da60c1 1590 int Length;
dea3101e
JB		 1591 int i, j;
1592 int finished = 0;
1593 int index = 0;
1594
1595 if (!vpd)
1596 return 0;
1597
1598 /* Vital Product */
ed957684 1599 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011 1600 "0455 Vital Product Data: x%x x%x x%x x%x\n",
dea3101e
JB		 1601 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1602 (uint32_t) vpd[3]);
74b72a59 1603 while (!finished && (index < (len - 4))) {
dea3101e
JB		 1604 switch (vpd[index]) {
1605 case 0x82:
74b72a59 1606 case 0x91:
dea3101e
JB		 1607 index += 1;
1608 lenlo = vpd[index];
1609 index += 1;
1610 lenhi = vpd[index];
1611 index += 1;
1612 i = ((((unsigned short)lenhi) << 8) + lenlo);
1613 index += i;
1614 break;
1615 case 0x90:
1616 index += 1;
1617 lenlo = vpd[index];
1618 index += 1;
1619 lenhi = vpd[index];
1620 index += 1;
1621 Length = ((((unsigned short)lenhi) << 8) + lenlo);
74b72a59
JW		 1622 if (Length > len - index)
1623 Length = len - index;
dea3101e
JB		 1624 while (Length > 0) {
1625 /* Look for Serial Number */
1626 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1627 index += 2;
1628 i = vpd[index];
1629 index += 1;
1630 j = 0;
1631 Length -= (3+i);
1632 while(i--) {
1633 phba->SerialNumber[j++] = vpd[index++];
1634 if (j == 31)
1635 break;
1636 }
1637 phba->SerialNumber[j] = 0;
1638 continue;
1639 }
1640 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1641 phba->vpd_flag |= VPD_MODEL_DESC;
1642 index += 2;
1643 i = vpd[index];
1644 index += 1;
1645 j = 0;
1646 Length -= (3+i);
1647 while(i--) {
1648 phba->ModelDesc[j++] = vpd[index++];
1649 if (j == 255)
1650 break;
1651 }
1652 phba->ModelDesc[j] = 0;
1653 continue;
1654 }
1655 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1656 phba->vpd_flag |= VPD_MODEL_NAME;
1657 index += 2;
1658 i = vpd[index];
1659 index += 1;
1660 j = 0;
1661 Length -= (3+i);
1662 while(i--) {
1663 phba->ModelName[j++] = vpd[index++];
1664 if (j == 79)
1665 break;
1666 }
1667 phba->ModelName[j] = 0;
1668 continue;
1669 }
1670 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1671 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1672 index += 2;
1673 i = vpd[index];
1674 index += 1;
1675 j = 0;
1676 Length -= (3+i);
1677 while(i--) {
1678 phba->ProgramType[j++] = vpd[index++];
1679 if (j == 255)
1680 break;
1681 }
1682 phba->ProgramType[j] = 0;
1683 continue;
1684 }
1685 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1686 phba->vpd_flag |= VPD_PORT;
1687 index += 2;
1688 i = vpd[index];
1689 index += 1;
1690 j = 0;
1691 Length -= (3+i);
1692 while(i--) {
1693 phba->Port[j++] = vpd[index++];
1694 if (j == 19)
1695 break;
1696 }
1697 phba->Port[j] = 0;
1698 continue;
1699 }
1700 else {
1701 index += 2;
1702 i = vpd[index];
1703 index += 1;
1704 index += i;
1705 Length -= (3 + i);
1706 }
1707 }
1708 finished = 0;
1709 break;
1710 case 0x78:
1711 finished = 1;
1712 break;
1713 default:
1714 index ++;
1715 break;
1716 }
74b72a59 1717 }
dea3101e
JB		 1718
1719 return(1);
1720}
1721
e59058c4 1722/**
3621a710 1723 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
e59058c4
JS		 1724 * @phba: pointer to lpfc hba data structure.
1725 * @mdp: pointer to the data structure to hold the derived model name.
1726 * @descp: pointer to the data structure to hold the derived description.
1727 *
1728 * This routine retrieves HBA's description based on its registered PCI device
1729 * ID. The @descp passed into this function points to an array of 256 chars. It
1730 * shall be returned with the model name, maximum speed, and the host bus type.
1731 * The @mdp passed into this function points to an array of 80 chars. When the
1732 * function returns, the @mdp will be filled with the model name.
1733 **/
dea3101e 1734static void
2e0fef85 1735lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
dea3101e
JB		 1736{
1737 lpfc_vpd_t *vp;
fefcb2b6 1738 uint16_t dev_id = phba->pcidev->device;
74b72a59 1739 int max_speed;
84774a4d 1740 int GE = 0;
da0436e9 1741 int oneConnect = 0; /* default is not a oneConnect */
74b72a59 1742 struct {
a747c9ce
JS		 1743 char *name;
1744 char *bus;
1745 char *function;
1746 } m = {"<Unknown>", "", ""};
74b72a59
JW		 1747
1748 if (mdp && mdp[0] != '\0'
1749 && descp && descp[0] != '\0')
1750 return;
1751
1752 if (phba->lmt & LMT_10Gb)
1753 max_speed = 10;
1754 else if (phba->lmt & LMT_8Gb)
1755 max_speed = 8;
1756 else if (phba->lmt & LMT_4Gb)
1757 max_speed = 4;
1758 else if (phba->lmt & LMT_2Gb)
1759 max_speed = 2;
1760 else
1761 max_speed = 1;
dea3101e
JB		 1762
1763 vp = &phba->vpd;
dea3101e 1764
e4adb204 1765 switch (dev_id) {
06325e74 1766 case PCI_DEVICE_ID_FIREFLY:
a747c9ce 1767 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
06325e74 1768 break;
dea3101e
JB		 1769 case PCI_DEVICE_ID_SUPERFLY:
1770 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
a747c9ce
JS		 1771 m = (typeof(m)){"LP7000", "PCI",
1772 "Fibre Channel Adapter"};
dea3101e 1773 else
a747c9ce
JS		 1774 m = (typeof(m)){"LP7000E", "PCI",
1775 "Fibre Channel Adapter"};
dea3101e
JB		 1776 break;
1777 case PCI_DEVICE_ID_DRAGONFLY:
a747c9ce
JS		 1778 m = (typeof(m)){"LP8000", "PCI",
1779 "Fibre Channel Adapter"};
dea3101e
JB		 1780 break;
1781 case PCI_DEVICE_ID_CENTAUR:
1782 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
a747c9ce
JS		 1783 m = (typeof(m)){"LP9002", "PCI",
1784 "Fibre Channel Adapter"};
dea3101e 1785 else
a747c9ce
JS		 1786 m = (typeof(m)){"LP9000", "PCI",
1787 "Fibre Channel Adapter"};
dea3101e
JB		 1788 break;
1789 case PCI_DEVICE_ID_RFLY:
a747c9ce
JS		 1790 m = (typeof(m)){"LP952", "PCI",
1791 "Fibre Channel Adapter"};
dea3101e
JB		 1792 break;
1793 case PCI_DEVICE_ID_PEGASUS:
a747c9ce
JS		 1794 m = (typeof(m)){"LP9802", "PCI-X",
1795 "Fibre Channel Adapter"};
dea3101e
JB		 1796 break;
1797 case PCI_DEVICE_ID_THOR:
a747c9ce
JS		 1798 m = (typeof(m)){"LP10000", "PCI-X",
1799 "Fibre Channel Adapter"};
dea3101e
JB		 1800 break;
1801 case PCI_DEVICE_ID_VIPER:
a747c9ce
JS		 1802 m = (typeof(m)){"LPX1000", "PCI-X",
1803 "Fibre Channel Adapter"};
dea3101e
JB		 1804 break;
1805 case PCI_DEVICE_ID_PFLY:
a747c9ce
JS		 1806 m = (typeof(m)){"LP982", "PCI-X",
1807 "Fibre Channel Adapter"};
dea3101e
JB		 1808 break;
1809 case PCI_DEVICE_ID_TFLY:
a747c9ce
JS		 1810 m = (typeof(m)){"LP1050", "PCI-X",
1811 "Fibre Channel Adapter"};
dea3101e
JB		 1812 break;
1813 case PCI_DEVICE_ID_HELIOS:
a747c9ce
JS		 1814 m = (typeof(m)){"LP11000", "PCI-X2",
1815 "Fibre Channel Adapter"};
dea3101e 1816 break;
e4adb204 1817 case PCI_DEVICE_ID_HELIOS_SCSP:
a747c9ce
JS		 1818 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1819 "Fibre Channel Adapter"};
e4adb204
JSEC		 1820 break;
1821 case PCI_DEVICE_ID_HELIOS_DCSP:
a747c9ce
JS		 1822 m = (typeof(m)){"LP11002-SP", "PCI-X2",
1823 "Fibre Channel Adapter"};
e4adb204
JSEC		 1824 break;
1825 case PCI_DEVICE_ID_NEPTUNE:
a747c9ce 1826 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 1827 break;
1828 case PCI_DEVICE_ID_NEPTUNE_SCSP:
a747c9ce 1829 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 1830 break;
1831 case PCI_DEVICE_ID_NEPTUNE_DCSP:
a747c9ce 1832 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
e4adb204 1833 break;
dea3101e 1834 case PCI_DEVICE_ID_BMID:
a747c9ce 1835 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
dea3101e
JB		 1836 break;
1837 case PCI_DEVICE_ID_BSMB:
a747c9ce 1838 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
dea3101e
JB		 1839 break;
1840 case PCI_DEVICE_ID_ZEPHYR:
a747c9ce 1841 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
dea3101e 1842 break;
e4adb204 1843 case PCI_DEVICE_ID_ZEPHYR_SCSP:
a747c9ce 1844 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 1845 break;
1846 case PCI_DEVICE_ID_ZEPHYR_DCSP:
a747c9ce 1847 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
a257bf90 1848 GE = 1;
e4adb204 1849 break;
dea3101e 1850 case PCI_DEVICE_ID_ZMID:
a747c9ce 1851 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
dea3101e
JB		 1852 break;
1853 case PCI_DEVICE_ID_ZSMB:
a747c9ce 1854 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
dea3101e
JB		 1855 break;
1856 case PCI_DEVICE_ID_LP101:
a747c9ce 1857 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
dea3101e
JB		 1858 break;
1859 case PCI_DEVICE_ID_LP10000S:
a747c9ce 1860 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
06325e74 1861 break;
e4adb204 1862 case PCI_DEVICE_ID_LP11000S:
a747c9ce 1863 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
18a3b596 1864 break;
e4adb204 1865 case PCI_DEVICE_ID_LPE11000S:
a747c9ce 1866 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
5cc36b3c 1867 break;
b87eab38 1868 case PCI_DEVICE_ID_SAT:
a747c9ce 1869 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1870 break;
1871 case PCI_DEVICE_ID_SAT_MID:
a747c9ce 1872 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1873 break;
1874 case PCI_DEVICE_ID_SAT_SMB:
a747c9ce 1875 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1876 break;
1877 case PCI_DEVICE_ID_SAT_DCSP:
a747c9ce 1878 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1879 break;
1880 case PCI_DEVICE_ID_SAT_SCSP:
a747c9ce 1881 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1882 break;
1883 case PCI_DEVICE_ID_SAT_S:
a747c9ce 1884 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
b87eab38 1885 break;
84774a4d 1886 case PCI_DEVICE_ID_HORNET:
a747c9ce 1887 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
84774a4d
JS		 1888 GE = 1;
1889 break;
1890 case PCI_DEVICE_ID_PROTEUS_VF:
a747c9ce
JS		 1891 m = (typeof(m)){"LPev12000", "PCIe IOV",
1892 "Fibre Channel Adapter"};
84774a4d
JS		 1893 break;
1894 case PCI_DEVICE_ID_PROTEUS_PF:
a747c9ce
JS		 1895 m = (typeof(m)){"LPev12000", "PCIe IOV",
1896 "Fibre Channel Adapter"};
84774a4d
JS		 1897 break;
1898 case PCI_DEVICE_ID_PROTEUS_S:
a747c9ce
JS		 1899 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1900 "Fibre Channel Adapter"};
84774a4d 1901 break;
da0436e9
JS		 1902 case PCI_DEVICE_ID_TIGERSHARK:
1903 oneConnect = 1;
a747c9ce 1904 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
da0436e9 1905 break;
a747c9ce 1906 case PCI_DEVICE_ID_TOMCAT:
6669f9bb 1907 oneConnect = 1;
a747c9ce
JS		 1908 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
1909 break;
1910 case PCI_DEVICE_ID_FALCON:
1911 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
1912 "EmulexSecure Fibre"};
6669f9bb 1913 break;
98fc5dd9
JS		 1914 case PCI_DEVICE_ID_BALIUS:
1915 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
1916 "Fibre Channel Adapter"};
1917 break;
085c647c
JS		 1918 case PCI_DEVICE_ID_LANCER_FC:
1919 oneConnect = 1;
1920 m = (typeof(m)){"Undefined", "PCIe", "Fibre Channel Adapter"};
1921 break;
1922 case PCI_DEVICE_ID_LANCER_FCOE:
1923 oneConnect = 1;
1924 m = (typeof(m)){"Undefined", "PCIe", "FCoE"};
1925 break;
5cc36b3c 1926 default:
a747c9ce 1927 m = (typeof(m)){"Unknown", "", ""};
e4adb204 1928 break;
dea3101e 1929 }
74b72a59
JW		 1930
1931 if (mdp && mdp[0] == '\0')
1932 snprintf(mdp, 79,"%s", m.name);
da0436e9
JS		 1933 /* oneConnect hba requires special processing, they are all initiators
1934 * and we put the port number on the end
1935 */
1936 if (descp && descp[0] == '\0') {
1937 if (oneConnect)
1938 snprintf(descp, 255,
a747c9ce
JS		 1939 "Emulex OneConnect %s, %s Initiator, Port %s",
1940 m.name, m.function,
da0436e9
JS		 1941 phba->Port);
1942 else
1943 snprintf(descp, 255,
1944 "Emulex %s %d%s %s %s",
a747c9ce
JS		 1945 m.name, max_speed, (GE) ? "GE" : "Gb",
1946 m.bus, m.function);
da0436e9 1947 }
dea3101e
JB		 1948}
1949
e59058c4 1950/**
3621a710 1951 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
e59058c4
JS		 1952 * @phba: pointer to lpfc hba data structure.
1953 * @pring: pointer to a IOCB ring.
1954 * @cnt: the number of IOCBs to be posted to the IOCB ring.
1955 *
1956 * This routine posts a given number of IOCBs with the associated DMA buffer
1957 * descriptors specified by the cnt argument to the given IOCB ring.
1958 *
1959 * Return codes
1960 * The number of IOCBs NOT able to be posted to the IOCB ring.
1961 **/
dea3101e 1962int
495a714c 1963lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
dea3101e
JB		 1964{
1965 IOCB_t *icmd;
0bd4ca25 1966 struct lpfc_iocbq *iocb;
dea3101e
JB		 1967 struct lpfc_dmabuf *mp1, *mp2;
1968
1969 cnt += pring->missbufcnt;
1970
1971 /* While there are buffers to post */
1972 while (cnt > 0) {
1973 /* Allocate buffer for command iocb */
0bd4ca25 1974 iocb = lpfc_sli_get_iocbq(phba);
dea3101e
JB		 1975 if (iocb == NULL) {
1976 pring->missbufcnt = cnt;
1977 return cnt;
1978 }
dea3101e
JB		 1979 icmd = &iocb->iocb;
1980
1981 /* 2 buffers can be posted per command */
1982 /* Allocate buffer to post */
1983 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1984 if (mp1)
98c9ea5c
JS		 1985 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
1986 if (!mp1 || !mp1->virt) {
c9475cb0 1987 kfree(mp1);
604a3e30 1988 lpfc_sli_release_iocbq(phba, iocb);
dea3101e
JB		 1989 pring->missbufcnt = cnt;
1990 return cnt;
1991 }
1992
1993 INIT_LIST_HEAD(&mp1->list);
1994 /* Allocate buffer to post */
1995 if (cnt > 1) {
1996 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1997 if (mp2)
1998 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
1999 &mp2->phys);
98c9ea5c 2000 if (!mp2 || !mp2->virt) {
c9475cb0 2001 kfree(mp2);
dea3101e
JB		 2002 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2003 kfree(mp1);
604a3e30 2004 lpfc_sli_release_iocbq(phba, iocb);
dea3101e
JB		 2005 pring->missbufcnt = cnt;
2006 return cnt;
2007 }
2008
2009 INIT_LIST_HEAD(&mp2->list);
2010 } else {
2011 mp2 = NULL;
2012 }
2013
2014 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2015 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2016 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2017 icmd->ulpBdeCount = 1;
2018 cnt--;
2019 if (mp2) {
2020 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2021 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2022 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2023 cnt--;
2024 icmd->ulpBdeCount = 2;
2025 }
2026
2027 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2028 icmd->ulpLe = 1;
2029
3772a991
JS		 2030 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2031 IOCB_ERROR) {
dea3101e
JB		 2032 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2033 kfree(mp1);
2034 cnt++;
2035 if (mp2) {
2036 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2037 kfree(mp2);
2038 cnt++;
2039 }
604a3e30 2040 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2041 pring->missbufcnt = cnt;
dea3101e
JB		 2042 return cnt;
2043 }
dea3101e 2044 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
92d7f7b0 2045 if (mp2)
dea3101e 2046 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
dea3101e
JB		 2047 }
2048 pring->missbufcnt = 0;
2049 return 0;
2050}
2051
e59058c4 2052/**
3621a710 2053 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
e59058c4
JS		 2054 * @phba: pointer to lpfc hba data structure.
2055 *
2056 * This routine posts initial receive IOCB buffers to the ELS ring. The
2057 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2058 * set to 64 IOCBs.
2059 *
2060 * Return codes
2061 * 0 - success (currently always success)
2062 **/
dea3101e 2063static int
2e0fef85 2064lpfc_post_rcv_buf(struct lpfc_hba *phba)
dea3101e
JB		 2065{
2066 struct lpfc_sli *psli = &phba->sli;
2067
2068 /* Ring 0, ELS / CT buffers */
495a714c 2069 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
dea3101e
JB		 2070 /* Ring 2 - FCP no buffers needed */
2071
2072 return 0;
2073}
2074
2075#define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2076
e59058c4 2077/**
3621a710 2078 * lpfc_sha_init - Set up initial array of hash table entries
e59058c4
JS		 2079 * @HashResultPointer: pointer to an array as hash table.
2080 *
2081 * This routine sets up the initial values to the array of hash table entries
2082 * for the LC HBAs.
2083 **/
dea3101e
JB		 2084static void
2085lpfc_sha_init(uint32_t * HashResultPointer)
2086{
2087 HashResultPointer[0] = 0x67452301;
2088 HashResultPointer[1] = 0xEFCDAB89;
2089 HashResultPointer[2] = 0x98BADCFE;
2090 HashResultPointer[3] = 0x10325476;
2091 HashResultPointer[4] = 0xC3D2E1F0;
2092}
2093
e59058c4 2094/**
3621a710 2095 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
e59058c4
JS		 2096 * @HashResultPointer: pointer to an initial/result hash table.
2097 * @HashWorkingPointer: pointer to an working hash table.
2098 *
2099 * This routine iterates an initial hash table pointed by @HashResultPointer
2100 * with the values from the working hash table pointeed by @HashWorkingPointer.
2101 * The results are putting back to the initial hash table, returned through
2102 * the @HashResultPointer as the result hash table.
2103 **/
dea3101e
JB		 2104static void
2105lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2106{
2107 int t;
2108 uint32_t TEMP;
2109 uint32_t A, B, C, D, E;
2110 t = 16;
2111 do {
2112 HashWorkingPointer[t] =
2113 S(1,
2114 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2115 8] ^
2116 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2117 } while (++t <= 79);
2118 t = 0;
2119 A = HashResultPointer[0];
2120 B = HashResultPointer[1];
2121 C = HashResultPointer[2];
2122 D = HashResultPointer[3];
2123 E = HashResultPointer[4];
2124
2125 do {
2126 if (t < 20) {
2127 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2128 } else if (t < 40) {
2129 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2130 } else if (t < 60) {
2131 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2132 } else {
2133 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2134 }
2135 TEMP += S(5, A) + E + HashWorkingPointer[t];
2136 E = D;
2137 D = C;
2138 C = S(30, B);
2139 B = A;
2140 A = TEMP;
2141 } while (++t <= 79);
2142
2143 HashResultPointer[0] += A;
2144 HashResultPointer[1] += B;
2145 HashResultPointer[2] += C;
2146 HashResultPointer[3] += D;
2147 HashResultPointer[4] += E;
2148
2149}
2150
e59058c4 2151/**
3621a710 2152 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
e59058c4
JS		 2153 * @RandomChallenge: pointer to the entry of host challenge random number array.
2154 * @HashWorking: pointer to the entry of the working hash array.
2155 *
2156 * This routine calculates the working hash array referred by @HashWorking
2157 * from the challenge random numbers associated with the host, referred by
2158 * @RandomChallenge. The result is put into the entry of the working hash
2159 * array and returned by reference through @HashWorking.
2160 **/
dea3101e
JB		 2161static void
2162lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2163{
2164 *HashWorking = (*RandomChallenge ^ *HashWorking);
2165}
2166
e59058c4 2167/**
3621a710 2168 * lpfc_hba_init - Perform special handling for LC HBA initialization
e59058c4
JS		 2169 * @phba: pointer to lpfc hba data structure.
2170 * @hbainit: pointer to an array of unsigned 32-bit integers.
2171 *
2172 * This routine performs the special handling for LC HBA initialization.
2173 **/
dea3101e
JB		 2174void
2175lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2176{
2177 int t;
2178 uint32_t *HashWorking;
2e0fef85 2179 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
dea3101e 2180
bbfbbbc1 2181 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
dea3101e
JB		 2182 if (!HashWorking)
2183 return;
2184
dea3101e
JB		 2185 HashWorking[0] = HashWorking[78] = *pwwnn++;
2186 HashWorking[1] = HashWorking[79] = *pwwnn;
2187
2188 for (t = 0; t < 7; t++)
2189 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2190
2191 lpfc_sha_init(hbainit);
2192 lpfc_sha_iterate(hbainit, HashWorking);
2193 kfree(HashWorking);
2194}
2195
e59058c4 2196/**
3621a710 2197 * lpfc_cleanup - Performs vport cleanups before deleting a vport
e59058c4
JS		 2198 * @vport: pointer to a virtual N_Port data structure.
2199 *
2200 * This routine performs the necessary cleanups before deleting the @vport.
2201 * It invokes the discovery state machine to perform necessary state
2202 * transitions and to release the ndlps associated with the @vport. Note,
2203 * the physical port is treated as @vport 0.
2204 **/
87af33fe 2205void
2e0fef85 2206lpfc_cleanup(struct lpfc_vport *vport)
dea3101e 2207{
87af33fe 2208 struct lpfc_hba *phba = vport->phba;
dea3101e 2209 struct lpfc_nodelist *ndlp, *next_ndlp;
a8adb832 2210 int i = 0;
dea3101e 2211
87af33fe
JS		 2212 if (phba->link_state > LPFC_LINK_DOWN)
2213 lpfc_port_link_failure(vport);
2214
2215 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
e47c9093
JS		 2216 if (!NLP_CHK_NODE_ACT(ndlp)) {
2217 ndlp = lpfc_enable_node(vport, ndlp,
2218 NLP_STE_UNUSED_NODE);
2219 if (!ndlp)
2220 continue;
2221 spin_lock_irq(&phba->ndlp_lock);
2222 NLP_SET_FREE_REQ(ndlp);
2223 spin_unlock_irq(&phba->ndlp_lock);
2224 /* Trigger the release of the ndlp memory */
2225 lpfc_nlp_put(ndlp);
2226 continue;
2227 }
2228 spin_lock_irq(&phba->ndlp_lock);
2229 if (NLP_CHK_FREE_REQ(ndlp)) {
2230 /* The ndlp should not be in memory free mode already */
2231 spin_unlock_irq(&phba->ndlp_lock);
2232 continue;
2233 } else
2234 /* Indicate request for freeing ndlp memory */
2235 NLP_SET_FREE_REQ(ndlp);
2236 spin_unlock_irq(&phba->ndlp_lock);
2237
58da1ffb
JS		 2238 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2239 ndlp->nlp_DID == Fabric_DID) {
2240 /* Just free up ndlp with Fabric_DID for vports */
2241 lpfc_nlp_put(ndlp);
2242 continue;
2243 }
2244
87af33fe
JS		 2245 if (ndlp->nlp_type & NLP_FABRIC)
2246 lpfc_disc_state_machine(vport, ndlp, NULL,
2247 NLP_EVT_DEVICE_RECOVERY);
e47c9093 2248
87af33fe
JS		 2249 lpfc_disc_state_machine(vport, ndlp, NULL,
2250 NLP_EVT_DEVICE_RM);
495a714c 2251
87af33fe
JS		 2252 }
2253
a8adb832
JS		 2254 /* At this point, ALL ndlp's should be gone
2255 * because of the previous NLP_EVT_DEVICE_RM.
2256 * Lets wait for this to happen, if needed.
2257 */
87af33fe 2258 while (!list_empty(&vport->fc_nodes)) {
a8adb832 2259 if (i++ > 3000) {
87af33fe 2260 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
a8adb832 2261 "0233 Nodelist not empty\n");
e47c9093
JS		 2262 list_for_each_entry_safe(ndlp, next_ndlp,
2263 &vport->fc_nodes, nlp_listp) {
2264 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2265 LOG_NODE,
d7c255b2 2266 "0282 did:x%x ndlp:x%p "
e47c9093
JS		 2267 "usgmap:x%x refcnt:%d\n",
2268 ndlp->nlp_DID, (void *)ndlp,
2269 ndlp->nlp_usg_map,
2270 atomic_read(
2271 &ndlp->kref.refcount));
2272 }
a8adb832 2273 break;
87af33fe 2274 }
a8adb832
JS		 2275
2276 /* Wait for any activity on ndlps to settle */
2277 msleep(10);
87af33fe 2278 }
1151e3ec 2279 lpfc_cleanup_vports_rrqs(vport, NULL);
dea3101e
JB		 2280}
2281
e59058c4 2282/**
3621a710 2283 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
e59058c4
JS		 2284 * @vport: pointer to a virtual N_Port data structure.
2285 *
2286 * This routine stops all the timers associated with a @vport. This function
2287 * is invoked before disabling or deleting a @vport. Note that the physical
2288 * port is treated as @vport 0.
2289 **/
92d7f7b0
JS		 2290void
2291lpfc_stop_vport_timers(struct lpfc_vport *vport)
dea3101e 2292{
92d7f7b0
JS		 2293 del_timer_sync(&vport->els_tmofunc);
2294 del_timer_sync(&vport->fc_fdmitmo);
92494144 2295 del_timer_sync(&vport->delayed_disc_tmo);
92d7f7b0
JS		 2296 lpfc_can_disctmo(vport);
2297 return;
dea3101e
JB		 2298}
2299
ecfd03c6
JS		 2300/**
2301 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2302 * @phba: pointer to lpfc hba data structure.
2303 *
2304 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2305 * caller of this routine should already hold the host lock.
2306 **/
2307void
2308__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2309{
5ac6b303
JS		 2310 /* Clear pending FCF rediscovery wait flag */
2311 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2312
ecfd03c6
JS		 2313 /* Now, try to stop the timer */
2314 del_timer(&phba->fcf.redisc_wait);
2315}
2316
2317/**
2318 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2319 * @phba: pointer to lpfc hba data structure.
2320 *
2321 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2322 * checks whether the FCF rediscovery wait timer is pending with the host
2323 * lock held before proceeding with disabling the timer and clearing the
2324 * wait timer pendig flag.
2325 **/
2326void
2327lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2328{
2329 spin_lock_irq(&phba->hbalock);
2330 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2331 /* FCF rediscovery timer already fired or stopped */
2332 spin_unlock_irq(&phba->hbalock);
2333 return;
2334 }
2335 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
5ac6b303
JS		 2336 /* Clear failover in progress flags */
2337 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
ecfd03c6
JS		 2338 spin_unlock_irq(&phba->hbalock);
2339}
2340
e59058c4 2341/**
3772a991 2342 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
e59058c4
JS		 2343 * @phba: pointer to lpfc hba data structure.
2344 *
2345 * This routine stops all the timers associated with a HBA. This function is
2346 * invoked before either putting a HBA offline or unloading the driver.
2347 **/
3772a991
JS		 2348void
2349lpfc_stop_hba_timers(struct lpfc_hba *phba)
dea3101e 2350{
51ef4c26 2351 lpfc_stop_vport_timers(phba->pport);
2e0fef85 2352 del_timer_sync(&phba->sli.mbox_tmo);
92d7f7b0 2353 del_timer_sync(&phba->fabric_block_timer);
9399627f 2354 del_timer_sync(&phba->eratt_poll);
3772a991 2355 del_timer_sync(&phba->hb_tmofunc);
1151e3ec
JS		 2356 if (phba->sli_rev == LPFC_SLI_REV4) {
2357 del_timer_sync(&phba->rrq_tmr);
2358 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2359 }
3772a991
JS		 2360 phba->hb_outstanding = 0;
2361
2362 switch (phba->pci_dev_grp) {
2363 case LPFC_PCI_DEV_LP:
2364 /* Stop any LightPulse device specific driver timers */
2365 del_timer_sync(&phba->fcp_poll_timer);
2366 break;
2367 case LPFC_PCI_DEV_OC:
2368 /* Stop any OneConnect device sepcific driver timers */
ecfd03c6 2369 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3772a991
JS		 2370 break;
2371 default:
2372 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2373 "0297 Invalid device group (x%x)\n",
2374 phba->pci_dev_grp);
2375 break;
2376 }
2e0fef85 2377 return;
dea3101e
JB		 2378}
2379
e59058c4 2380/**
3621a710 2381 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
e59058c4
JS		 2382 * @phba: pointer to lpfc hba data structure.
2383 *
2384 * This routine marks a HBA's management interface as blocked. Once the HBA's
2385 * management interface is marked as blocked, all the user space access to
2386 * the HBA, whether they are from sysfs interface or libdfc interface will
2387 * all be blocked. The HBA is set to block the management interface when the
2388 * driver prepares the HBA interface for online or offline.
2389 **/
a6ababd2
AB		 2390static void
2391lpfc_block_mgmt_io(struct lpfc_hba * phba)
2392{
2393 unsigned long iflag;
6e7288d9
JS		 2394 uint8_t actcmd = MBX_HEARTBEAT;
2395 unsigned long timeout;
2396
a6ababd2
AB		 2397
2398 spin_lock_irqsave(&phba->hbalock, iflag);
2399 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
6e7288d9
JS		 2400 if (phba->sli.mbox_active)
2401 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
a6ababd2 2402 spin_unlock_irqrestore(&phba->hbalock, iflag);
6e7288d9
JS		 2403 /* Determine how long we might wait for the active mailbox
2404 * command to be gracefully completed by firmware.
2405 */
2406 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
2407 jiffies;
2408 /* Wait for the outstnading mailbox command to complete */
2409 while (phba->sli.mbox_active) {
2410 /* Check active mailbox complete status every 2ms */
2411 msleep(2);
2412 if (time_after(jiffies, timeout)) {
2413 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2414 "2813 Mgmt IO is Blocked %x "
2415 "- mbox cmd %x still active\n",
2416 phba->sli.sli_flag, actcmd);
2417 break;
2418 }
2419 }
a6ababd2
AB		 2420}
2421
e59058c4 2422/**
3621a710 2423 * lpfc_online - Initialize and bring a HBA online
e59058c4
JS		 2424 * @phba: pointer to lpfc hba data structure.
2425 *
2426 * This routine initializes the HBA and brings a HBA online. During this
2427 * process, the management interface is blocked to prevent user space access
2428 * to the HBA interfering with the driver initialization.
2429 *
2430 * Return codes
2431 * 0 - successful
2432 * 1 - failed
2433 **/
dea3101e 2434int
2e0fef85 2435lpfc_online(struct lpfc_hba *phba)
dea3101e 2436{
372bd282 2437 struct lpfc_vport *vport;
549e55cd
JS		 2438 struct lpfc_vport **vports;
2439 int i;
2e0fef85 2440
dea3101e
JB		 2441 if (!phba)
2442 return 0;
372bd282 2443 vport = phba->pport;
dea3101e 2444
2e0fef85 2445 if (!(vport->fc_flag & FC_OFFLINE_MODE))
dea3101e
JB		 2446 return 0;
2447
ed957684 2448 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
e8b62011 2449 "0458 Bring Adapter online\n");
dea3101e 2450
46fa311e
JS		 2451 lpfc_block_mgmt_io(phba);
2452
2453 if (!lpfc_sli_queue_setup(phba)) {
2454 lpfc_unblock_mgmt_io(phba);
dea3101e 2455 return 1;
46fa311e 2456 }
dea3101e 2457
da0436e9
JS		 2458 if (phba->sli_rev == LPFC_SLI_REV4) {
2459 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2460 lpfc_unblock_mgmt_io(phba);
2461 return 1;
2462 }
2463 } else {
2464 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2465 lpfc_unblock_mgmt_io(phba);
2466 return 1;
2467 }
46fa311e 2468 }
dea3101e 2469
549e55cd
JS		 2470 vports = lpfc_create_vport_work_array(phba);
2471 if (vports != NULL)
da0436e9 2472 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
549e55cd
JS		 2473 struct Scsi_Host *shost;
2474 shost = lpfc_shost_from_vport(vports[i]);
2475 spin_lock_irq(shost->host_lock);
2476 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2477 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2478 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
1c6834a7
JS		 2479 if (phba->sli_rev == LPFC_SLI_REV4)
2480 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
549e55cd
JS		 2481 spin_unlock_irq(shost->host_lock);
2482 }
09372820 2483 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 2484
46fa311e 2485 lpfc_unblock_mgmt_io(phba);
dea3101e
JB		 2486 return 0;
2487}
2488
e59058c4 2489/**
3621a710 2490 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
e59058c4
JS		 2491 * @phba: pointer to lpfc hba data structure.
2492 *
2493 * This routine marks a HBA's management interface as not blocked. Once the
2494 * HBA's management interface is marked as not blocked, all the user space
2495 * access to the HBA, whether they are from sysfs interface or libdfc
2496 * interface will be allowed. The HBA is set to block the management interface
2497 * when the driver prepares the HBA interface for online or offline and then
2498 * set to unblock the management interface afterwards.
2499 **/
46fa311e
JS		 2500void
2501lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2502{
2503 unsigned long iflag;
2504
2e0fef85
JS		 2505 spin_lock_irqsave(&phba->hbalock, iflag);
2506 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2507 spin_unlock_irqrestore(&phba->hbalock, iflag);
46fa311e
JS		 2508}
2509
e59058c4 2510/**
3621a710 2511 * lpfc_offline_prep - Prepare a HBA to be brought offline
e59058c4
JS		 2512 * @phba: pointer to lpfc hba data structure.
2513 *
2514 * This routine is invoked to prepare a HBA to be brought offline. It performs
2515 * unregistration login to all the nodes on all vports and flushes the mailbox
2516 * queue to make it ready to be brought offline.
2517 **/
46fa311e
JS		 2518void
2519lpfc_offline_prep(struct lpfc_hba * phba)
2520{
2e0fef85 2521 struct lpfc_vport *vport = phba->pport;
46fa311e 2522 struct lpfc_nodelist *ndlp, *next_ndlp;
87af33fe 2523 struct lpfc_vport **vports;
72100cc4 2524 struct Scsi_Host *shost;
87af33fe 2525 int i;
dea3101e 2526
2e0fef85 2527 if (vport->fc_flag & FC_OFFLINE_MODE)
46fa311e 2528 return;
dea3101e 2529
46fa311e 2530 lpfc_block_mgmt_io(phba);
dea3101e
JB		 2531
2532 lpfc_linkdown(phba);
2533
87af33fe
JS		 2534 /* Issue an unreg_login to all nodes on all vports */
2535 vports = lpfc_create_vport_work_array(phba);
2536 if (vports != NULL) {
da0436e9 2537 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
a8adb832
JS		 2538 if (vports[i]->load_flag & FC_UNLOADING)
2539 continue;
72100cc4
JS		 2540 shost = lpfc_shost_from_vport(vports[i]);
2541 spin_lock_irq(shost->host_lock);
c868595d 2542 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
695a814e
JS		 2543 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2544 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
72100cc4 2545 spin_unlock_irq(shost->host_lock);
695a814e 2546
87af33fe
JS		 2547 shost = lpfc_shost_from_vport(vports[i]);
2548 list_for_each_entry_safe(ndlp, next_ndlp,
2549 &vports[i]->fc_nodes,
2550 nlp_listp) {
e47c9093
JS		 2551 if (!NLP_CHK_NODE_ACT(ndlp))
2552 continue;
87af33fe
JS		 2553 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2554 continue;
2555 if (ndlp->nlp_type & NLP_FABRIC) {
2556 lpfc_disc_state_machine(vports[i], ndlp,
2557 NULL, NLP_EVT_DEVICE_RECOVERY);
2558 lpfc_disc_state_machine(vports[i], ndlp,
2559 NULL, NLP_EVT_DEVICE_RM);
2560 }
2561 spin_lock_irq(shost->host_lock);
2562 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2563 spin_unlock_irq(shost->host_lock);
2564 lpfc_unreg_rpi(vports[i], ndlp);
2565 }
2566 }
2567 }
09372820 2568 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 2569
04c68496 2570 lpfc_sli_mbox_sys_shutdown(phba);
46fa311e
JS		 2571}
2572
e59058c4 2573/**
3621a710 2574 * lpfc_offline - Bring a HBA offline
e59058c4
JS		 2575 * @phba: pointer to lpfc hba data structure.
2576 *
2577 * This routine actually brings a HBA offline. It stops all the timers
2578 * associated with the HBA, brings down the SLI layer, and eventually
2579 * marks the HBA as in offline state for the upper layer protocol.
2580 **/
46fa311e 2581void
2e0fef85 2582lpfc_offline(struct lpfc_hba *phba)
46fa311e 2583{
549e55cd
JS		 2584 struct Scsi_Host *shost;
2585 struct lpfc_vport **vports;
2586 int i;
46fa311e 2587
549e55cd 2588 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
46fa311e 2589 return;
688a8863 2590
da0436e9
JS		 2591 /* stop port and all timers associated with this hba */
2592 lpfc_stop_port(phba);
51ef4c26
JS		 2593 vports = lpfc_create_vport_work_array(phba);
2594 if (vports != NULL)
da0436e9 2595 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
51ef4c26 2596 lpfc_stop_vport_timers(vports[i]);
09372820 2597 lpfc_destroy_vport_work_array(phba, vports);
92d7f7b0 2598 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
e8b62011 2599 "0460 Bring Adapter offline\n");
dea3101e
JB		 2600 /* Bring down the SLI Layer and cleanup. The HBA is offline
2601 now. */
2602 lpfc_sli_hba_down(phba);
92d7f7b0 2603 spin_lock_irq(&phba->hbalock);
7054a606 2604 phba->work_ha = 0;
92d7f7b0 2605 spin_unlock_irq(&phba->hbalock);
549e55cd
JS		 2606 vports = lpfc_create_vport_work_array(phba);
2607 if (vports != NULL)
da0436e9 2608 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
549e55cd 2609 shost = lpfc_shost_from_vport(vports[i]);
549e55cd
JS		 2610 spin_lock_irq(shost->host_lock);
2611 vports[i]->work_port_events = 0;
2612 vports[i]->fc_flag |= FC_OFFLINE_MODE;
2613 spin_unlock_irq(shost->host_lock);
2614 }
09372820 2615 lpfc_destroy_vport_work_array(phba, vports);
dea3101e
JB		 2616}
2617
e59058c4 2618/**
3621a710 2619 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
e59058c4
JS		 2620 * @phba: pointer to lpfc hba data structure.
2621 *
2622 * This routine is to free all the SCSI buffers and IOCBs from the driver
2623 * list back to kernel. It is called from lpfc_pci_remove_one to free
2624 * the internal resources before the device is removed from the system.
2625 *
2626 * Return codes
2627 * 0 - successful (for now, it always returns 0)
2628 **/
dea3101e 2629static int
2e0fef85 2630lpfc_scsi_free(struct lpfc_hba *phba)
dea3101e
JB		 2631{
2632 struct lpfc_scsi_buf *sb, *sb_next;
2633 struct lpfc_iocbq *io, *io_next;
2634
2e0fef85 2635 spin_lock_irq(&phba->hbalock);
dea3101e 2636 /* Release all the lpfc_scsi_bufs maintained by this host. */
1c6f4ef5 2637 spin_lock(&phba->scsi_buf_list_lock);
dea3101e
JB		 2638 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2639 list_del(&sb->list);
2640 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
92d7f7b0 2641 sb->dma_handle);
dea3101e
JB		 2642 kfree(sb);
2643 phba->total_scsi_bufs--;
2644 }
1c6f4ef5 2645 spin_unlock(&phba->scsi_buf_list_lock);
dea3101e
JB		 2646
2647 /* Release all the lpfc_iocbq entries maintained by this host. */
2648 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2649 list_del(&io->list);
2650 kfree(io);
2651 phba->total_iocbq_bufs--;
2652 }
2e0fef85 2653 spin_unlock_irq(&phba->hbalock);
dea3101e
JB		 2654 return 0;
2655}
2656
e59058c4 2657/**
3621a710 2658 * lpfc_create_port - Create an FC port
e59058c4
JS		 2659 * @phba: pointer to lpfc hba data structure.
2660 * @instance: a unique integer ID to this FC port.
2661 * @dev: pointer to the device data structure.
2662 *
2663 * This routine creates a FC port for the upper layer protocol. The FC port
2664 * can be created on top of either a physical port or a virtual port provided
2665 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2666 * and associates the FC port created before adding the shost into the SCSI
2667 * layer.
2668 *
2669 * Return codes
2670 * @vport - pointer to the virtual N_Port data structure.
2671 * NULL - port create failed.
2672 **/
2e0fef85 2673struct lpfc_vport *
3de2a653 2674lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
47a8617c 2675{
2e0fef85
JS		 2676 struct lpfc_vport *vport;
2677 struct Scsi_Host *shost;
2678 int error = 0;
47a8617c 2679
3de2a653
JS		 2680 if (dev != &phba->pcidev->dev)
2681 shost = scsi_host_alloc(&lpfc_vport_template,
2682 sizeof(struct lpfc_vport));
2683 else
2684 shost = scsi_host_alloc(&lpfc_template,
2685 sizeof(struct lpfc_vport));
2e0fef85
JS		 2686 if (!shost)
2687 goto out;
47a8617c 2688
2e0fef85
JS		 2689 vport = (struct lpfc_vport *) shost->hostdata;
2690 vport->phba = phba;
2e0fef85 2691 vport->load_flag |= FC_LOADING;
92d7f7b0 2692 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
7f5f3d0d 2693 vport->fc_rscn_flush = 0;
47a8617c 2694
3de2a653 2695 lpfc_get_vport_cfgparam(vport);
2e0fef85
JS		 2696 shost->unique_id = instance;
2697 shost->max_id = LPFC_MAX_TARGET;
3de2a653 2698 shost->max_lun = vport->cfg_max_luns;
2e0fef85
JS		 2699 shost->this_id = -1;
2700 shost->max_cmd_len = 16;
da0436e9 2701 if (phba->sli_rev == LPFC_SLI_REV4) {
28baac74 2702 shost->dma_boundary =
cb5172ea 2703 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
da0436e9
JS		 2704 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2705 }
81301a9b 2706
47a8617c 2707 /*
2e0fef85
JS		 2708 * Set initial can_queue value since 0 is no longer supported and
2709 * scsi_add_host will fail. This will be adjusted later based on the
2710 * max xri value determined in hba setup.
47a8617c 2711 */
2e0fef85 2712 shost->can_queue = phba->cfg_hba_queue_depth - 10;
3de2a653 2713 if (dev != &phba->pcidev->dev) {
92d7f7b0
JS		 2714 shost->transportt = lpfc_vport_transport_template;
2715 vport->port_type = LPFC_NPIV_PORT;
2716 } else {
2717 shost->transportt = lpfc_transport_template;
2718 vport->port_type = LPFC_PHYSICAL_PORT;
2719 }
47a8617c 2720
2e0fef85
JS		 2721 /* Initialize all internally managed lists. */
2722 INIT_LIST_HEAD(&vport->fc_nodes);
da0436e9 2723 INIT_LIST_HEAD(&vport->rcv_buffer_list);
2e0fef85 2724 spin_lock_init(&vport->work_port_lock);
47a8617c 2725
2e0fef85
JS		 2726 init_timer(&vport->fc_disctmo);
2727 vport->fc_disctmo.function = lpfc_disc_timeout;
92d7f7b0 2728 vport->fc_disctmo.data = (unsigned long)vport;
47a8617c 2729
2e0fef85
JS		 2730 init_timer(&vport->fc_fdmitmo);
2731 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
92d7f7b0 2732 vport->fc_fdmitmo.data = (unsigned long)vport;
47a8617c 2733
2e0fef85
JS		 2734 init_timer(&vport->els_tmofunc);
2735 vport->els_tmofunc.function = lpfc_els_timeout;
92d7f7b0 2736 vport->els_tmofunc.data = (unsigned long)vport;
92494144
JS		 2737
2738 init_timer(&vport->delayed_disc_tmo);
2739 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
2740 vport->delayed_disc_tmo.data = (unsigned long)vport;
2741
d139b9bd 2742 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2e0fef85
JS		 2743 if (error)
2744 goto out_put_shost;
47a8617c 2745
549e55cd 2746 spin_lock_irq(&phba->hbalock);
2e0fef85 2747 list_add_tail(&vport->listentry, &phba->port_list);
549e55cd 2748 spin_unlock_irq(&phba->hbalock);
2e0fef85 2749 return vport;
47a8617c 2750
2e0fef85
JS		 2751out_put_shost:
2752 scsi_host_put(shost);
2753out:
2754 return NULL;
47a8617c
JS		 2755}
2756
e59058c4 2757/**
3621a710 2758 * destroy_port - destroy an FC port
e59058c4
JS		 2759 * @vport: pointer to an lpfc virtual N_Port data structure.
2760 *
2761 * This routine destroys a FC port from the upper layer protocol. All the
2762 * resources associated with the port are released.
2763 **/
2e0fef85
JS		 2764void
2765destroy_port(struct lpfc_vport *vport)
47a8617c 2766{
92d7f7b0
JS		 2767 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2768 struct lpfc_hba *phba = vport->phba;
47a8617c 2769
858c9f6c 2770 lpfc_debugfs_terminate(vport);
92d7f7b0
JS		 2771 fc_remove_host(shost);
2772 scsi_remove_host(shost);
47a8617c 2773
92d7f7b0
JS		 2774 spin_lock_irq(&phba->hbalock);
2775 list_del_init(&vport->listentry);
2776 spin_unlock_irq(&phba->hbalock);
47a8617c 2777
92d7f7b0 2778 lpfc_cleanup(vport);
47a8617c 2779 return;
47a8617c
JS		 2780}
2781
e59058c4 2782/**
3621a710 2783 * lpfc_get_instance - Get a unique integer ID
e59058c4
JS		 2784 *
2785 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2786 * uses the kernel idr facility to perform the task.
2787 *
2788 * Return codes:
2789 * instance - a unique integer ID allocated as the new instance.
2790 * -1 - lpfc get instance failed.
2791 **/
92d7f7b0
JS		 2792int
2793lpfc_get_instance(void)
2794{
2795 int instance = 0;
47a8617c 2796
92d7f7b0
JS		 2797 /* Assign an unused number */
2798 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2799 return -1;
2800 if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2801 return -1;
2802 return instance;
47a8617c
JS		 2803}
2804
e59058c4 2805/**
3621a710 2806 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
e59058c4
JS		 2807 * @shost: pointer to SCSI host data structure.
2808 * @time: elapsed time of the scan in jiffies.
2809 *
2810 * This routine is called by the SCSI layer with a SCSI host to determine
2811 * whether the scan host is finished.
2812 *
2813 * Note: there is no scan_start function as adapter initialization will have
2814 * asynchronously kicked off the link initialization.
2815 *
2816 * Return codes
2817 * 0 - SCSI host scan is not over yet.
2818 * 1 - SCSI host scan is over.
2819 **/
47a8617c
JS		 2820int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2821{
2e0fef85
JS		 2822 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2823 struct lpfc_hba *phba = vport->phba;
858c9f6c 2824 int stat = 0;
47a8617c 2825
858c9f6c
JS		 2826 spin_lock_irq(shost->host_lock);
2827
51ef4c26 2828 if (vport->load_flag & FC_UNLOADING) {
858c9f6c
JS		 2829 stat = 1;
2830 goto finished;
2831 }
2e0fef85
JS		 2832 if (time >= 30 * HZ) {
2833 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011
JS		 2834 "0461 Scanning longer than 30 "
2835 "seconds. Continuing initialization\n");
858c9f6c 2836 stat = 1;
47a8617c 2837 goto finished;
2e0fef85
JS		 2838 }
2839 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2840 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011
JS		 2841 "0465 Link down longer than 15 "
2842 "seconds. Continuing initialization\n");
858c9f6c 2843 stat = 1;
47a8617c 2844 goto finished;
2e0fef85 2845 }
47a8617c 2846
2e0fef85 2847 if (vport->port_state != LPFC_VPORT_READY)
858c9f6c 2848 goto finished;
2e0fef85 2849 if (vport->num_disc_nodes || vport->fc_prli_sent)
858c9f6c 2850 goto finished;
2e0fef85 2851 if (vport->fc_map_cnt == 0 && time < 2 * HZ)
858c9f6c 2852 goto finished;
2e0fef85 2853 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
858c9f6c
JS		 2854 goto finished;
2855
2856 stat = 1;
47a8617c
JS		 2857
2858finished:
858c9f6c
JS		 2859 spin_unlock_irq(shost->host_lock);
2860 return stat;
92d7f7b0 2861}
47a8617c 2862
e59058c4 2863/**
3621a710 2864 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
e59058c4
JS		 2865 * @shost: pointer to SCSI host data structure.
2866 *
2867 * This routine initializes a given SCSI host attributes on a FC port. The
2868 * SCSI host can be either on top of a physical port or a virtual port.
2869 **/
92d7f7b0
JS		 2870void lpfc_host_attrib_init(struct Scsi_Host *shost)
2871{
2872 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2873 struct lpfc_hba *phba = vport->phba;
47a8617c 2874 /*
2e0fef85 2875 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
47a8617c
JS		 2876 */
2877
2e0fef85
JS		 2878 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2879 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
47a8617c
JS		 2880 fc_host_supported_classes(shost) = FC_COS_CLASS3;
2881
2882 memset(fc_host_supported_fc4s(shost), 0,
2e0fef85 2883 sizeof(fc_host_supported_fc4s(shost)));
47a8617c
JS		 2884 fc_host_supported_fc4s(shost)[2] = 1;
2885 fc_host_supported_fc4s(shost)[7] = 1;
2886
92d7f7b0
JS		 2887 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2888 sizeof fc_host_symbolic_name(shost));
47a8617c
JS		 2889
2890 fc_host_supported_speeds(shost) = 0;
2891 if (phba->lmt & LMT_10Gb)
2892 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
a8adb832
JS		 2893 if (phba->lmt & LMT_8Gb)
2894 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
47a8617c
JS		 2895 if (phba->lmt & LMT_4Gb)
2896 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2897 if (phba->lmt & LMT_2Gb)
2898 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2899 if (phba->lmt & LMT_1Gb)
2900 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2901
2902 fc_host_maxframe_size(shost) =
2e0fef85
JS		 2903 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2904 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
47a8617c 2905
0af5d708
MC		 2906 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
2907
47a8617c
JS		 2908 /* This value is also unchanging */
2909 memset(fc_host_active_fc4s(shost), 0,
2e0fef85 2910 sizeof(fc_host_active_fc4s(shost)));
47a8617c
JS		 2911 fc_host_active_fc4s(shost)[2] = 1;
2912 fc_host_active_fc4s(shost)[7] = 1;
2913
92d7f7b0 2914 fc_host_max_npiv_vports(shost) = phba->max_vpi;
47a8617c 2915 spin_lock_irq(shost->host_lock);
51ef4c26 2916 vport->load_flag &= ~FC_LOADING;
47a8617c 2917 spin_unlock_irq(shost->host_lock);
47a8617c 2918}
dea3101e 2919
e59058c4 2920/**
da0436e9 2921 * lpfc_stop_port_s3 - Stop SLI3 device port
e59058c4
JS		 2922 * @phba: pointer to lpfc hba data structure.
2923 *
da0436e9
JS		 2924 * This routine is invoked to stop an SLI3 device port, it stops the device
2925 * from generating interrupts and stops the device driver's timers for the
2926 * device.
e59058c4 2927 **/
da0436e9
JS		 2928static void
2929lpfc_stop_port_s3(struct lpfc_hba *phba)
db2378e0 2930{
da0436e9
JS		 2931 /* Clear all interrupt enable conditions */
2932 writel(0, phba->HCregaddr);
2933 readl(phba->HCregaddr); /* flush */
2934 /* Clear all pending interrupts */
2935 writel(0xffffffff, phba->HAregaddr);
2936 readl(phba->HAregaddr); /* flush */
db2378e0 2937
da0436e9
JS		 2938 /* Reset some HBA SLI setup states */
2939 lpfc_stop_hba_timers(phba);
2940 phba->pport->work_port_events = 0;
2941}
db2378e0 2942
da0436e9
JS		 2943/**
2944 * lpfc_stop_port_s4 - Stop SLI4 device port
2945 * @phba: pointer to lpfc hba data structure.
2946 *
2947 * This routine is invoked to stop an SLI4 device port, it stops the device
2948 * from generating interrupts and stops the device driver's timers for the
2949 * device.
2950 **/
2951static void
2952lpfc_stop_port_s4(struct lpfc_hba *phba)
2953{
2954 /* Reset some HBA SLI4 setup states */
2955 lpfc_stop_hba_timers(phba);
2956 phba->pport->work_port_events = 0;
2957 phba->sli4_hba.intr_enable = 0;
da0436e9 2958}
9399627f 2959
da0436e9
JS		 2960/**
2961 * lpfc_stop_port - Wrapper function for stopping hba port
2962 * @phba: Pointer to HBA context object.
2963 *
2964 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2965 * the API jump table function pointer from the lpfc_hba struct.
2966 **/
2967void
2968lpfc_stop_port(struct lpfc_hba *phba)
2969{
2970 phba->lpfc_stop_port(phba);
2971}
db2378e0 2972
ecfd03c6
JS		 2973/**
2974 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
2975 * @phba: Pointer to hba for which this call is being executed.
2976 *
2977 * This routine starts the timer waiting for the FCF rediscovery to complete.
2978 **/
2979void
2980lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
2981{
2982 unsigned long fcf_redisc_wait_tmo =
2983 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
2984 /* Start fcf rediscovery wait period timer */
2985 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
2986 spin_lock_irq(&phba->hbalock);
2987 /* Allow action to new fcf asynchronous event */
2988 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
2989 /* Mark the FCF rediscovery pending state */
2990 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
2991 spin_unlock_irq(&phba->hbalock);
2992}
2993
2994/**
2995 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
2996 * @ptr: Map to lpfc_hba data structure pointer.
2997 *
2998 * This routine is invoked when waiting for FCF table rediscover has been
2999 * timed out. If new FCF record(s) has (have) been discovered during the
3000 * wait period, a new FCF event shall be added to the FCOE async event
3001 * list, and then worker thread shall be waked up for processing from the
3002 * worker thread context.
3003 **/
3004void
3005lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3006{
3007 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3008
3009 /* Don't send FCF rediscovery event if timer cancelled */
3010 spin_lock_irq(&phba->hbalock);
3011 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3012 spin_unlock_irq(&phba->hbalock);
3013 return;
3014 }
3015 /* Clear FCF rediscovery timer pending flag */
3016 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3017 /* FCF rediscovery event to worker thread */
3018 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3019 spin_unlock_irq(&phba->hbalock);
0c9ab6f5 3020 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
a93ff37a 3021 "2776 FCF rediscover quiescent timer expired\n");
ecfd03c6
JS		 3022 /* wake up worker thread */
3023 lpfc_worker_wake_up(phba);
3024}
3025
e59058c4 3026/**
da0436e9 3027 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
e59058c4 3028 * @phba: pointer to lpfc hba data structure.
da0436e9 3029 * @acqe_link: pointer to the async link completion queue entry.
e59058c4 3030 *
da0436e9
JS		 3031 * This routine is to parse the SLI4 link-attention link fault code and
3032 * translate it into the base driver's read link attention mailbox command
3033 * status.
3034 *
3035 * Return: Link-attention status in terms of base driver's coding.
e59058c4 3036 **/
da0436e9
JS		 3037static uint16_t
3038lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3039 struct lpfc_acqe_link *acqe_link)
db2378e0 3040{
da0436e9 3041 uint16_t latt_fault;
9399627f 3042
da0436e9
JS		 3043 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3044 case LPFC_ASYNC_LINK_FAULT_NONE:
3045 case LPFC_ASYNC_LINK_FAULT_LOCAL:
3046 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3047 latt_fault = 0;
3048 break;
3049 default:
3050 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3051 "0398 Invalid link fault code: x%x\n",
3052 bf_get(lpfc_acqe_link_fault, acqe_link));
3053 latt_fault = MBXERR_ERROR;
3054 break;
3055 }
3056 return latt_fault;
db2378e0
JS		 3057}
3058
5b75da2f 3059/**
da0436e9 3060 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
5b75da2f 3061 * @phba: pointer to lpfc hba data structure.
da0436e9 3062 * @acqe_link: pointer to the async link completion queue entry.
5b75da2f 3063 *
da0436e9
JS		 3064 * This routine is to parse the SLI4 link attention type and translate it
3065 * into the base driver's link attention type coding.
5b75da2f 3066 *
da0436e9
JS		 3067 * Return: Link attention type in terms of base driver's coding.
3068 **/
3069static uint8_t
3070lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3071 struct lpfc_acqe_link *acqe_link)
5b75da2f 3072{
da0436e9 3073 uint8_t att_type;
5b75da2f 3074
da0436e9
JS		 3075 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3076 case LPFC_ASYNC_LINK_STATUS_DOWN:
3077 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
76a95d75 3078 att_type = LPFC_ATT_LINK_DOWN;
da0436e9
JS		 3079 break;
3080 case LPFC_ASYNC_LINK_STATUS_UP:
3081 /* Ignore physical link up events - wait for logical link up */
76a95d75 3082 att_type = LPFC_ATT_RESERVED;
da0436e9
JS		 3083 break;
3084 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
76a95d75 3085 att_type = LPFC_ATT_LINK_UP;
da0436e9
JS		 3086 break;
3087 default:
3088 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3089 "0399 Invalid link attention type: x%x\n",
3090 bf_get(lpfc_acqe_link_status, acqe_link));
76a95d75 3091 att_type = LPFC_ATT_RESERVED;
da0436e9 3092 break;
5b75da2f 3093 }
da0436e9 3094 return att_type;
5b75da2f
JS		 3095}
3096
3097/**
da0436e9 3098 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
5b75da2f 3099 * @phba: pointer to lpfc hba data structure.
da0436e9 3100 * @acqe_link: pointer to the async link completion queue entry.
5b75da2f 3101 *
da0436e9
JS		 3102 * This routine is to parse the SLI4 link-attention link speed and translate
3103 * it into the base driver's link-attention link speed coding.
3104 *
3105 * Return: Link-attention link speed in terms of base driver's coding.
3106 **/
3107static uint8_t
3108lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3109 struct lpfc_acqe_link *acqe_link)
5b75da2f 3110{
da0436e9
JS		 3111 uint8_t link_speed;
3112
3113 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3114 case LPFC_ASYNC_LINK_SPEED_ZERO:
da0436e9 3115 case LPFC_ASYNC_LINK_SPEED_10MBPS:
da0436e9 3116 case LPFC_ASYNC_LINK_SPEED_100MBPS:
76a95d75 3117 link_speed = LPFC_LINK_SPEED_UNKNOWN;
da0436e9
JS		 3118 break;
3119 case LPFC_ASYNC_LINK_SPEED_1GBPS:
76a95d75 3120 link_speed = LPFC_LINK_SPEED_1GHZ;
da0436e9
JS		 3121 break;
3122 case LPFC_ASYNC_LINK_SPEED_10GBPS:
76a95d75 3123 link_speed = LPFC_LINK_SPEED_10GHZ;
da0436e9
JS		 3124 break;
3125 default:
3126 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3127 "0483 Invalid link-attention link speed: x%x\n",
3128 bf_get(lpfc_acqe_link_speed, acqe_link));
76a95d75 3129 link_speed = LPFC_LINK_SPEED_UNKNOWN;
da0436e9
JS		 3130 break;
3131 }
3132 return link_speed;
3133}
3134
3135/**
70f3c073 3136 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
da0436e9
JS		 3137 * @phba: pointer to lpfc hba data structure.
3138 * @acqe_link: pointer to the async link completion queue entry.
3139 *
70f3c073 3140 * This routine is to handle the SLI4 asynchronous FCoE link event.
da0436e9
JS		 3141 **/
3142static void
3143lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3144 struct lpfc_acqe_link *acqe_link)
3145{
3146 struct lpfc_dmabuf *mp;
3147 LPFC_MBOXQ_t *pmb;
3148 MAILBOX_t *mb;
76a95d75 3149 struct lpfc_mbx_read_top *la;
da0436e9 3150 uint8_t att_type;
76a95d75 3151 int rc;
da0436e9
JS		 3152
3153 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
76a95d75 3154 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
da0436e9 3155 return;
32b9793f 3156 phba->fcoe_eventtag = acqe_link->event_tag;
da0436e9
JS		 3157 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3158 if (!pmb) {
3159 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3160 "0395 The mboxq allocation failed\n");
3161 return;
3162 }
3163 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3164 if (!mp) {
3165 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3166 "0396 The lpfc_dmabuf allocation failed\n");
3167 goto out_free_pmb;
3168 }
3169 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3170 if (!mp->virt) {
3171 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3172 "0397 The mbuf allocation failed\n");
3173 goto out_free_dmabuf;
3174 }
3175
3176 /* Cleanup any outstanding ELS commands */
3177 lpfc_els_flush_all_cmd(phba);
3178
3179 /* Block ELS IOCBs until we have done process link event */
3180 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3181
3182 /* Update link event statistics */
3183 phba->sli.slistat.link_event++;
3184
76a95d75
JS		 3185 /* Create lpfc_handle_latt mailbox command from link ACQE */
3186 lpfc_read_topology(phba, pmb, mp);
3187 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
da0436e9
JS		 3188 pmb->vport = phba->pport;
3189
da0436e9
JS		 3190 /* Keep the link status for extra SLI4 state machine reference */
3191 phba->sli4_hba.link_state.speed =
3192 bf_get(lpfc_acqe_link_speed, acqe_link);
3193 phba->sli4_hba.link_state.duplex =
3194 bf_get(lpfc_acqe_link_duplex, acqe_link);
3195 phba->sli4_hba.link_state.status =
3196 bf_get(lpfc_acqe_link_status, acqe_link);
70f3c073
JS		 3197 phba->sli4_hba.link_state.type =
3198 bf_get(lpfc_acqe_link_type, acqe_link);
3199 phba->sli4_hba.link_state.number =
3200 bf_get(lpfc_acqe_link_number, acqe_link);
da0436e9
JS		 3201 phba->sli4_hba.link_state.fault =
3202 bf_get(lpfc_acqe_link_fault, acqe_link);
65467b6b 3203 phba->sli4_hba.link_state.logical_speed =
70f3c073
JS		 3204 bf_get(lpfc_acqe_logical_link_speed, acqe_link);
3205 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3206 "2900 Async FCoE Link event - Speed:%dGBit duplex:x%x "
3207 "LA Type:x%x Port Type:%d Port Number:%d Logical "
3208 "speed:%dMbps Fault:%d\n",
3209 phba->sli4_hba.link_state.speed,
3210 phba->sli4_hba.link_state.topology,
3211 phba->sli4_hba.link_state.status,
3212 phba->sli4_hba.link_state.type,
3213 phba->sli4_hba.link_state.number,
3214 phba->sli4_hba.link_state.logical_speed * 10,
3215 phba->sli4_hba.link_state.fault);
76a95d75
JS		 3216 /*
3217 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3218 * topology info. Note: Optional for non FC-AL ports.
3219 */
3220 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3221 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3222 if (rc == MBX_NOT_FINISHED)
3223 goto out_free_dmabuf;
3224 return;
3225 }
3226 /*
3227 * For FCoE Mode: fill in all the topology information we need and call
3228 * the READ_TOPOLOGY completion routine to continue without actually
3229 * sending the READ_TOPOLOGY mailbox command to the port.
3230 */
3231 /* Parse and translate status field */
3232 mb = &pmb->u.mb;
3233 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3234
3235 /* Parse and translate link attention fields */
3236 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3237 la->eventTag = acqe_link->event_tag;
3238 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3239 bf_set(lpfc_mbx_read_top_link_spd, la,
3240 lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3241
3242 /* Fake the the following irrelvant fields */
3243 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3244 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3245 bf_set(lpfc_mbx_read_top_il, la, 0);
3246 bf_set(lpfc_mbx_read_top_pb, la, 0);
3247 bf_set(lpfc_mbx_read_top_fa, la, 0);
3248 bf_set(lpfc_mbx_read_top_mm, la, 0);
da0436e9
JS		 3249
3250 /* Invoke the lpfc_handle_latt mailbox command callback function */
76a95d75 3251 lpfc_mbx_cmpl_read_topology(phba, pmb);
da0436e9 3252
5b75da2f 3253 return;
da0436e9
JS		 3254
3255out_free_dmabuf:
3256 kfree(mp);
3257out_free_pmb:
3258 mempool_free(pmb, phba->mbox_mem_pool);
3259}
3260
70f3c073
JS		 3261/**
3262 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3263 * @phba: pointer to lpfc hba data structure.
3264 * @acqe_fc: pointer to the async fc completion queue entry.
3265 *
3266 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3267 * that the event was received and then issue a read_topology mailbox command so
3268 * that the rest of the driver will treat it the same as SLI3.
3269 **/
3270static void
3271lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3272{
3273 struct lpfc_dmabuf *mp;
3274 LPFC_MBOXQ_t *pmb;
3275 int rc;
3276
3277 if (bf_get(lpfc_trailer_type, acqe_fc) !=
3278 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3279 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3280 "2895 Non FC link Event detected.(%d)\n",
3281 bf_get(lpfc_trailer_type, acqe_fc));
3282 return;
3283 }
3284 /* Keep the link status for extra SLI4 state machine reference */
3285 phba->sli4_hba.link_state.speed =
3286 bf_get(lpfc_acqe_fc_la_speed, acqe_fc);
3287 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3288 phba->sli4_hba.link_state.topology =
3289 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3290 phba->sli4_hba.link_state.status =
3291 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3292 phba->sli4_hba.link_state.type =
3293 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3294 phba->sli4_hba.link_state.number =
3295 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3296 phba->sli4_hba.link_state.fault =
3297 bf_get(lpfc_acqe_link_fault, acqe_fc);
3298 phba->sli4_hba.link_state.logical_speed =
3299 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
3300 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3301 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3302 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3303 "%dMbps Fault:%d\n",
3304 phba->sli4_hba.link_state.speed,
3305 phba->sli4_hba.link_state.topology,
3306 phba->sli4_hba.link_state.status,
3307 phba->sli4_hba.link_state.type,
3308 phba->sli4_hba.link_state.number,
3309 phba->sli4_hba.link_state.logical_speed * 10,
3310 phba->sli4_hba.link_state.fault);
3311 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3312 if (!pmb) {
3313 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3314 "2897 The mboxq allocation failed\n");
3315 return;
3316 }
3317 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3318 if (!mp) {
3319 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3320 "2898 The lpfc_dmabuf allocation failed\n");
3321 goto out_free_pmb;
3322 }
3323 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3324 if (!mp->virt) {
3325 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3326 "2899 The mbuf allocation failed\n");
3327 goto out_free_dmabuf;
3328 }
3329
3330 /* Cleanup any outstanding ELS commands */
3331 lpfc_els_flush_all_cmd(phba);
3332
3333 /* Block ELS IOCBs until we have done process link event */
3334 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3335
3336 /* Update link event statistics */
3337 phba->sli.slistat.link_event++;
3338
3339 /* Create lpfc_handle_latt mailbox command from link ACQE */
3340 lpfc_read_topology(phba, pmb, mp);
3341 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3342 pmb->vport = phba->pport;
3343
3344 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3345 if (rc == MBX_NOT_FINISHED)
3346 goto out_free_dmabuf;
3347 return;
3348
3349out_free_dmabuf:
3350 kfree(mp);
3351out_free_pmb:
3352 mempool_free(pmb, phba->mbox_mem_pool);
3353}
3354
3355/**
3356 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3357 * @phba: pointer to lpfc hba data structure.
3358 * @acqe_fc: pointer to the async SLI completion queue entry.
3359 *
3360 * This routine is to handle the SLI4 asynchronous SLI events.
3361 **/
3362static void
3363lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3364{
3365 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3366 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3367 "x%08x SLI Event Type:%d",
3368 acqe_sli->event_data1, acqe_sli->event_data2,
3369 bf_get(lpfc_trailer_type, acqe_sli));
3370 return;
3371}
3372
fc2b989b
JS		 3373/**
3374 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3375 * @vport: pointer to vport data structure.
3376 *
3377 * This routine is to perform Clear Virtual Link (CVL) on a vport in
3378 * response to a CVL event.
3379 *
3380 * Return the pointer to the ndlp with the vport if successful, otherwise
3381 * return NULL.
3382 **/
3383static struct lpfc_nodelist *
3384lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3385{
3386 struct lpfc_nodelist *ndlp;
3387 struct Scsi_Host *shost;
3388 struct lpfc_hba *phba;
3389
3390 if (!vport)
3391 return NULL;
fc2b989b
JS		 3392 phba = vport->phba;
3393 if (!phba)
3394 return NULL;
78730cfe
JS		 3395 ndlp = lpfc_findnode_did(vport, Fabric_DID);
3396 if (!ndlp) {
3397 /* Cannot find existing Fabric ndlp, so allocate a new one */
3398 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3399 if (!ndlp)
3400 return 0;
3401 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3402 /* Set the node type */
3403 ndlp->nlp_type |= NLP_FABRIC;
3404 /* Put ndlp onto node list */
3405 lpfc_enqueue_node(vport, ndlp);
3406 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3407 /* re-setup ndlp without removing from node list */
3408 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3409 if (!ndlp)
3410 return 0;
3411 }
63e801ce
JS		 3412 if ((phba->pport->port_state < LPFC_FLOGI) &&
3413 (phba->pport->port_state != LPFC_VPORT_FAILED))
fc2b989b
JS		 3414 return NULL;
3415 /* If virtual link is not yet instantiated ignore CVL */
63e801ce
JS		 3416 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
3417 && (vport->port_state != LPFC_VPORT_FAILED))
fc2b989b
JS		 3418 return NULL;
3419 shost = lpfc_shost_from_vport(vport);
3420 if (!shost)
3421 return NULL;
3422 lpfc_linkdown_port(vport);
3423 lpfc_cleanup_pending_mbox(vport);
3424 spin_lock_irq(shost->host_lock);
3425 vport->fc_flag |= FC_VPORT_CVL_RCVD;
3426 spin_unlock_irq(shost->host_lock);
3427
3428 return ndlp;
3429}
3430
3431/**
3432 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3433 * @vport: pointer to lpfc hba data structure.
3434 *
3435 * This routine is to perform Clear Virtual Link (CVL) on all vports in
3436 * response to a FCF dead event.
3437 **/
3438static void
3439lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3440{
3441 struct lpfc_vport **vports;
3442 int i;
3443
3444 vports = lpfc_create_vport_work_array(phba);
3445 if (vports)
3446 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3447 lpfc_sli4_perform_vport_cvl(vports[i]);
3448 lpfc_destroy_vport_work_array(phba, vports);
3449}
3450
da0436e9 3451/**
76a95d75 3452 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
da0436e9
JS		 3453 * @phba: pointer to lpfc hba data structure.
3454 * @acqe_link: pointer to the async fcoe completion queue entry.
3455 *
3456 * This routine is to handle the SLI4 asynchronous fcoe event.
3457 **/
3458static void
76a95d75 3459lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
70f3c073 3460 struct lpfc_acqe_fip *acqe_fip)
da0436e9 3461{
70f3c073 3462 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
da0436e9 3463 int rc;
6669f9bb
JS		 3464 struct lpfc_vport *vport;
3465 struct lpfc_nodelist *ndlp;
3466 struct Scsi_Host *shost;
695a814e
JS		 3467 int active_vlink_present;
3468 struct lpfc_vport **vports;
3469 int i;
da0436e9 3470
70f3c073
JS		 3471 phba->fc_eventTag = acqe_fip->event_tag;
3472 phba->fcoe_eventtag = acqe_fip->event_tag;
da0436e9 3473 switch (event_type) {
70f3c073
JS		 3474 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
3475 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
3476 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
999d813f
JS		 3477 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3478 LOG_DISCOVERY,
a93ff37a
JS		 3479 "2546 New FCF event, evt_tag:x%x, "
3480 "index:x%x\n",
70f3c073
JS		 3481 acqe_fip->event_tag,
3482 acqe_fip->index);
999d813f
JS		 3483 else
3484 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3485 LOG_DISCOVERY,
a93ff37a
JS		 3486 "2788 FCF param modified event, "
3487 "evt_tag:x%x, index:x%x\n",
70f3c073
JS		 3488 acqe_fip->event_tag,
3489 acqe_fip->index);
38b92ef8 3490 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
0c9ab6f5
JS		 3491 /*
3492 * During period of FCF discovery, read the FCF
3493 * table record indexed by the event to update
a93ff37a 3494 * FCF roundrobin failover eligible FCF bmask.
0c9ab6f5
JS		 3495 */
3496 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3497 LOG_DISCOVERY,
a93ff37a
JS		 3498 "2779 Read FCF (x%x) for updating "
3499 "roundrobin FCF failover bmask\n",
70f3c073
JS		 3500 acqe_fip->index);
3501 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
0c9ab6f5 3502 }
38b92ef8
JS		 3503
3504 /* If the FCF discovery is in progress, do nothing. */
3804dc84 3505 spin_lock_irq(&phba->hbalock);
a93ff37a 3506 if (phba->hba_flag & FCF_TS_INPROG) {
38b92ef8
JS		 3507 spin_unlock_irq(&phba->hbalock);
3508 break;
3509 }
3510 /* If fast FCF failover rescan event is pending, do nothing */
3511 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3512 spin_unlock_irq(&phba->hbalock);
3513 break;
3514 }
3515
3516 /* If the FCF has been in discovered state, do nothing. */
3804dc84
JS		 3517 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
3518 spin_unlock_irq(&phba->hbalock);
3519 break;
3520 }
3521 spin_unlock_irq(&phba->hbalock);
38b92ef8 3522
0c9ab6f5
JS		 3523 /* Otherwise, scan the entire FCF table and re-discover SAN */
3524 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
a93ff37a
JS		 3525 "2770 Start FCF table scan per async FCF "
3526 "event, evt_tag:x%x, index:x%x\n",
70f3c073 3527 acqe_fip->event_tag, acqe_fip->index);
0c9ab6f5
JS		 3528 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3529 LPFC_FCOE_FCF_GET_FIRST);
da0436e9 3530 if (rc)
0c9ab6f5
JS		 3531 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3532 "2547 Issue FCF scan read FCF mailbox "
a93ff37a 3533 "command failed (x%x)\n", rc);
da0436e9
JS		 3534 break;
3535
70f3c073 3536 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
da0436e9 3537 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
e4e74273 3538 "2548 FCF Table full count 0x%x tag 0x%x\n",
70f3c073
JS		 3539 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
3540 acqe_fip->event_tag);
da0436e9
JS		 3541 break;
3542
70f3c073 3543 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
0c9ab6f5 3544 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
a93ff37a 3545 "2549 FCF (x%x) disconnected from network, "
70f3c073 3546 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
38b92ef8
JS		 3547 /*
3548 * If we are in the middle of FCF failover process, clear
3549 * the corresponding FCF bit in the roundrobin bitmap.
da0436e9 3550 */
fc2b989b 3551 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3552 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
fc2b989b 3553 spin_unlock_irq(&phba->hbalock);
0c9ab6f5 3554 /* Update FLOGI FCF failover eligible FCF bmask */
70f3c073 3555 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
fc2b989b
JS		 3556 break;
3557 }
38b92ef8
JS		 3558 spin_unlock_irq(&phba->hbalock);
3559
3560 /* If the event is not for currently used fcf do nothing */
70f3c073 3561 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
38b92ef8
JS		 3562 break;
3563
3564 /*
3565 * Otherwise, request the port to rediscover the entire FCF
3566 * table for a fast recovery from case that the current FCF
3567 * is no longer valid as we are not in the middle of FCF
3568 * failover process already.
3569 */
3570 spin_lock_irq(&phba->hbalock);
fc2b989b 3571 /* Mark the fast failover process in progress */
0c9ab6f5 3572 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
fc2b989b 3573 spin_unlock_irq(&phba->hbalock);
38b92ef8 3574
0c9ab6f5
JS		 3575 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3576 "2771 Start FCF fast failover process due to "
3577 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
70f3c073 3578 "\n", acqe_fip->event_tag, acqe_fip->index);
fc2b989b
JS		 3579 rc = lpfc_sli4_redisc_fcf_table(phba);
3580 if (rc) {
0c9ab6f5
JS		 3581 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3582 LOG_DISCOVERY,
3583 "2772 Issue FCF rediscover mabilbox "
3584 "command failed, fail through to FCF "
3585 "dead event\n");
fc2b989b 3586 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3587 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
fc2b989b
JS		 3588 spin_unlock_irq(&phba->hbalock);
3589 /*
3590 * Last resort will fail over by treating this
3591 * as a link down to FCF registration.
3592 */
3593 lpfc_sli4_fcf_dead_failthrough(phba);
38b92ef8
JS		 3594 } else {
3595 /* Reset FCF roundrobin bmask for new discovery */
3596 memset(phba->fcf.fcf_rr_bmask, 0,
3597 sizeof(*phba->fcf.fcf_rr_bmask));
3598 /*
3599 * Handling fast FCF failover to a DEAD FCF event is
3600 * considered equalivant to receiving CVL to all vports.
fc2b989b
JS		 3601 */
3602 lpfc_sli4_perform_all_vport_cvl(phba);
38b92ef8 3603 }
da0436e9 3604 break;
70f3c073 3605 case LPFC_FIP_EVENT_TYPE_CVL:
0c9ab6f5 3606 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
6669f9bb 3607 "2718 Clear Virtual Link Received for VPI 0x%x"
70f3c073 3608 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
6669f9bb 3609 vport = lpfc_find_vport_by_vpid(phba,
70f3c073 3610 acqe_fip->index - phba->vpi_base);
fc2b989b 3611 ndlp = lpfc_sli4_perform_vport_cvl(vport);
6669f9bb
JS		 3612 if (!ndlp)
3613 break;
695a814e
JS		 3614 active_vlink_present = 0;
3615
3616 vports = lpfc_create_vport_work_array(phba);
3617 if (vports) {
3618 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3619 i++) {
3620 if ((!(vports[i]->fc_flag &
3621 FC_VPORT_CVL_RCVD)) &&
3622 (vports[i]->port_state > LPFC_FDISC)) {
3623 active_vlink_present = 1;
3624 break;
3625 }
3626 }
3627 lpfc_destroy_vport_work_array(phba, vports);
3628 }
3629
3630 if (active_vlink_present) {
3631 /*
3632 * If there are other active VLinks present,
3633 * re-instantiate the Vlink using FDISC.
3634 */
6669f9bb 3635 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
fc2b989b 3636 shost = lpfc_shost_from_vport(vport);
6669f9bb
JS		 3637 spin_lock_irq(shost->host_lock);
3638 ndlp->nlp_flag |= NLP_DELAY_TMO;
3639 spin_unlock_irq(shost->host_lock);
695a814e
JS		 3640 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3641 vport->port_state = LPFC_FDISC;
3642 } else {
ecfd03c6
JS		 3643 /*
3644 * Otherwise, we request port to rediscover
3645 * the entire FCF table for a fast recovery
3646 * from possible case that the current FCF
0c9ab6f5
JS		 3647 * is no longer valid if we are not already
3648 * in the FCF failover process.
ecfd03c6 3649 */
fc2b989b 3650 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3651 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
fc2b989b
JS		 3652 spin_unlock_irq(&phba->hbalock);
3653 break;
3654 }
3655 /* Mark the fast failover process in progress */
0c9ab6f5 3656 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
fc2b989b 3657 spin_unlock_irq(&phba->hbalock);
0c9ab6f5
JS		 3658 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3659 LOG_DISCOVERY,
a93ff37a 3660 "2773 Start FCF failover per CVL, "
70f3c073 3661 "evt_tag:x%x\n", acqe_fip->event_tag);
ecfd03c6 3662 rc = lpfc_sli4_redisc_fcf_table(phba);
fc2b989b 3663 if (rc) {
0c9ab6f5
JS		 3664 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3665 LOG_DISCOVERY,
3666 "2774 Issue FCF rediscover "
3667 "mabilbox command failed, "
3668 "through to CVL event\n");
fc2b989b 3669 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3670 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
fc2b989b 3671 spin_unlock_irq(&phba->hbalock);
ecfd03c6
JS		 3672 /*
3673 * Last resort will be re-try on the
3674 * the current registered FCF entry.
3675 */
3676 lpfc_retry_pport_discovery(phba);
38b92ef8
JS		 3677 } else
3678 /*
3679 * Reset FCF roundrobin bmask for new
3680 * discovery.
3681 */
3682 memset(phba->fcf.fcf_rr_bmask, 0,
3683 sizeof(*phba->fcf.fcf_rr_bmask));
6669f9bb
JS		 3684 }
3685 break;
da0436e9
JS		 3686 default:
3687 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3688 "0288 Unknown FCoE event type 0x%x event tag "
70f3c073 3689 "0x%x\n", event_type, acqe_fip->event_tag);
da0436e9
JS		 3690 break;
3691 }
3692}
3693
3694/**
3695 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3696 * @phba: pointer to lpfc hba data structure.
3697 * @acqe_link: pointer to the async dcbx completion queue entry.
3698 *
3699 * This routine is to handle the SLI4 asynchronous dcbx event.
3700 **/
3701static void
3702lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3703 struct lpfc_acqe_dcbx *acqe_dcbx)
3704{
4d9ab994 3705 phba->fc_eventTag = acqe_dcbx->event_tag;
da0436e9
JS		 3706 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3707 "0290 The SLI4 DCBX asynchronous event is not "
3708 "handled yet\n");
3709}
3710
b19a061a
JS		 3711/**
3712 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3713 * @phba: pointer to lpfc hba data structure.
3714 * @acqe_link: pointer to the async grp5 completion queue entry.
3715 *
3716 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3717 * is an asynchronous notified of a logical link speed change. The Port
3718 * reports the logical link speed in units of 10Mbps.
3719 **/
3720static void
3721lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
3722 struct lpfc_acqe_grp5 *acqe_grp5)
3723{
3724 uint16_t prev_ll_spd;
3725
3726 phba->fc_eventTag = acqe_grp5->event_tag;
3727 phba->fcoe_eventtag = acqe_grp5->event_tag;
3728 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
3729 phba->sli4_hba.link_state.logical_speed =
3730 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
3731 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3732 "2789 GRP5 Async Event: Updating logical link speed "
3733 "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
3734 (phba->sli4_hba.link_state.logical_speed*10));
3735}
3736
da0436e9
JS		 3737/**
3738 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3739 * @phba: pointer to lpfc hba data structure.
3740 *
3741 * This routine is invoked by the worker thread to process all the pending
3742 * SLI4 asynchronous events.
3743 **/
3744void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3745{
3746 struct lpfc_cq_event *cq_event;
3747
3748 /* First, declare the async event has been handled */
3749 spin_lock_irq(&phba->hbalock);
3750 phba->hba_flag &= ~ASYNC_EVENT;
3751 spin_unlock_irq(&phba->hbalock);
3752 /* Now, handle all the async events */
3753 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3754 /* Get the first event from the head of the event queue */
3755 spin_lock_irq(&phba->hbalock);
3756 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3757 cq_event, struct lpfc_cq_event, list);
3758 spin_unlock_irq(&phba->hbalock);
3759 /* Process the asynchronous event */
3760 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3761 case LPFC_TRAILER_CODE_LINK:
3762 lpfc_sli4_async_link_evt(phba,
3763 &cq_event->cqe.acqe_link);
3764 break;
3765 case LPFC_TRAILER_CODE_FCOE:
70f3c073 3766 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
da0436e9
JS		 3767 break;
3768 case LPFC_TRAILER_CODE_DCBX:
3769 lpfc_sli4_async_dcbx_evt(phba,
3770 &cq_event->cqe.acqe_dcbx);
3771 break;
b19a061a
JS		 3772 case LPFC_TRAILER_CODE_GRP5:
3773 lpfc_sli4_async_grp5_evt(phba,
3774 &cq_event->cqe.acqe_grp5);
3775 break;
70f3c073
JS		 3776 case LPFC_TRAILER_CODE_FC:
3777 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
3778 break;
3779 case LPFC_TRAILER_CODE_SLI:
3780 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
3781 break;
da0436e9
JS		 3782 default:
3783 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3784 "1804 Invalid asynchrous event code: "
3785 "x%x\n", bf_get(lpfc_trailer_code,
3786 &cq_event->cqe.mcqe_cmpl));
3787 break;
3788 }
3789 /* Free the completion event processed to the free pool */
3790 lpfc_sli4_cq_event_release(phba, cq_event);
3791 }
3792}
3793
ecfd03c6
JS		 3794/**
3795 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3796 * @phba: pointer to lpfc hba data structure.
3797 *
3798 * This routine is invoked by the worker thread to process FCF table
3799 * rediscovery pending completion event.
3800 **/
3801void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3802{
3803 int rc;
3804
3805 spin_lock_irq(&phba->hbalock);
3806 /* Clear FCF rediscovery timeout event */
3807 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3808 /* Clear driver fast failover FCF record flag */
3809 phba->fcf.failover_rec.flag = 0;
3810 /* Set state for FCF fast failover */
3811 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3812 spin_unlock_irq(&phba->hbalock);
3813
3814 /* Scan FCF table from the first entry to re-discover SAN */
0c9ab6f5 3815 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
a93ff37a 3816 "2777 Start post-quiescent FCF table scan\n");
0c9ab6f5 3817 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
ecfd03c6 3818 if (rc)
0c9ab6f5
JS		 3819 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3820 "2747 Issue FCF scan read FCF mailbox "
3821 "command failed 0x%x\n", rc);
ecfd03c6
JS		 3822}
3823
da0436e9
JS		 3824/**
3825 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3826 * @phba: pointer to lpfc hba data structure.
3827 * @dev_grp: The HBA PCI-Device group number.
3828 *
3829 * This routine is invoked to set up the per HBA PCI-Device group function
3830 * API jump table entries.
3831 *
3832 * Return: 0 if success, otherwise -ENODEV
3833 **/
3834int
3835lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3836{
3837 int rc;
3838
3839 /* Set up lpfc PCI-device group */
3840 phba->pci_dev_grp = dev_grp;
3841
3842 /* The LPFC_PCI_DEV_OC uses SLI4 */
3843 if (dev_grp == LPFC_PCI_DEV_OC)
3844 phba->sli_rev = LPFC_SLI_REV4;
3845
3846 /* Set up device INIT API function jump table */
3847 rc = lpfc_init_api_table_setup(phba, dev_grp);
3848 if (rc)
3849 return -ENODEV;
3850 /* Set up SCSI API function jump table */
3851 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3852 if (rc)
3853 return -ENODEV;
3854 /* Set up SLI API function jump table */
3855 rc = lpfc_sli_api_table_setup(phba, dev_grp);
3856 if (rc)
3857 return -ENODEV;
3858 /* Set up MBOX API function jump table */
3859 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3860 if (rc)
3861 return -ENODEV;
3862
3863 return 0;
5b75da2f
JS		 3864}
3865
3866/**
3621a710 3867 * lpfc_log_intr_mode - Log the active interrupt mode
5b75da2f
JS		 3868 * @phba: pointer to lpfc hba data structure.
3869 * @intr_mode: active interrupt mode adopted.
3870 *
3871 * This routine it invoked to log the currently used active interrupt mode
3872 * to the device.
3772a991
JS		 3873 **/
3874static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5b75da2f
JS		 3875{
3876 switch (intr_mode) {
3877 case 0:
3878 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3879 "0470 Enable INTx interrupt mode.\n");
3880 break;
3881 case 1:
3882 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3883 "0481 Enabled MSI interrupt mode.\n");
3884 break;
3885 case 2:
3886 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3887 "0480 Enabled MSI-X interrupt mode.\n");
3888 break;
3889 default:
3890 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3891 "0482 Illegal interrupt mode.\n");
3892 break;
3893 }
3894 return;
3895}
3896
5b75da2f 3897/**
3772a991 3898 * lpfc_enable_pci_dev - Enable a generic PCI device.
5b75da2f
JS		 3899 * @phba: pointer to lpfc hba data structure.
3900 *
3772a991
JS		 3901 * This routine is invoked to enable the PCI device that is common to all
3902 * PCI devices.
5b75da2f
JS		 3903 *
3904 * Return codes
af901ca1 3905 * 0 - successful
3772a991 3906 * other values - error
5b75da2f 3907 **/
3772a991
JS		 3908static int
3909lpfc_enable_pci_dev(struct lpfc_hba *phba)
5b75da2f 3910{
3772a991
JS		 3911 struct pci_dev *pdev;
3912 int bars;
5b75da2f 3913
3772a991
JS		 3914 /* Obtain PCI device reference */
3915 if (!phba->pcidev)
3916 goto out_error;
3917 else
3918 pdev = phba->pcidev;
3919 /* Select PCI BARs */
3920 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3921 /* Enable PCI device */
3922 if (pci_enable_device_mem(pdev))
3923 goto out_error;
3924 /* Request PCI resource for the device */
3925 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3926 goto out_disable_device;
3927 /* Set up device as PCI master and save state for EEH */
3928 pci_set_master(pdev);
3929 pci_try_set_mwi(pdev);
3930 pci_save_state(pdev);
5b75da2f 3931
3772a991 3932 return 0;
5b75da2f 3933
3772a991
JS		 3934out_disable_device:
3935 pci_disable_device(pdev);
3936out_error:
3937 return -ENODEV;
5b75da2f
JS		 3938}
3939
3940/**
3772a991 3941 * lpfc_disable_pci_dev - Disable a generic PCI device.
5b75da2f
JS		 3942 * @phba: pointer to lpfc hba data structure.
3943 *
3772a991
JS		 3944 * This routine is invoked to disable the PCI device that is common to all
3945 * PCI devices.
5b75da2f
JS		 3946 **/
3947static void
3772a991 3948lpfc_disable_pci_dev(struct lpfc_hba *phba)
5b75da2f 3949{
3772a991
JS		 3950 struct pci_dev *pdev;
3951 int bars;
5b75da2f 3952
3772a991
JS		 3953 /* Obtain PCI device reference */
3954 if (!phba->pcidev)
3955 return;
3956 else
3957 pdev = phba->pcidev;
3958 /* Select PCI BARs */
3959 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3960 /* Release PCI resource and disable PCI device */
3961 pci_release_selected_regions(pdev, bars);
3962 pci_disable_device(pdev);
3963 /* Null out PCI private reference to driver */
3964 pci_set_drvdata(pdev, NULL);
5b75da2f
JS		 3965
3966 return;
3967}
3968
e59058c4 3969/**
3772a991
JS		 3970 * lpfc_reset_hba - Reset a hba
3971 * @phba: pointer to lpfc hba data structure.
e59058c4 3972 *
3772a991
JS		 3973 * This routine is invoked to reset a hba device. It brings the HBA
3974 * offline, performs a board restart, and then brings the board back
3975 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3976 * on outstanding mailbox commands.
e59058c4 3977 **/
3772a991
JS		 3978void
3979lpfc_reset_hba(struct lpfc_hba *phba)
dea3101e 3980{
3772a991
JS		 3981 /* If resets are disabled then set error state and return. */
3982 if (!phba->cfg_enable_hba_reset) {
3983 phba->link_state = LPFC_HBA_ERROR;
3984 return;
3985 }
3986 lpfc_offline_prep(phba);
3987 lpfc_offline(phba);
3988 lpfc_sli_brdrestart(phba);
3989 lpfc_online(phba);
3990 lpfc_unblock_mgmt_io(phba);
3991}
dea3101e 3992
3772a991
JS		 3993/**
3994 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
3995 * @phba: pointer to lpfc hba data structure.
3996 *
3997 * This routine is invoked to set up the driver internal resources specific to
3998 * support the SLI-3 HBA device it attached to.
3999 *
4000 * Return codes
af901ca1 4001 * 0 - successful
3772a991
JS		 4002 * other values - error
4003 **/
4004static int
4005lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4006{
4007 struct lpfc_sli *psli;
dea3101e 4008
2e0fef85 4009 /*
3772a991 4010 * Initialize timers used by driver
2e0fef85 4011 */
dea3101e 4012
3772a991 4013 /* Heartbeat timer */
858c9f6c
JS		 4014 init_timer(&phba->hb_tmofunc);
4015 phba->hb_tmofunc.function = lpfc_hb_timeout;
4016 phba->hb_tmofunc.data = (unsigned long)phba;
4017
dea3101e 4018 psli = &phba->sli;
3772a991 4019 /* MBOX heartbeat timer */
dea3101e
JB		 4020 init_timer(&psli->mbox_tmo);
4021 psli->mbox_tmo.function = lpfc_mbox_timeout;
2e0fef85 4022 psli->mbox_tmo.data = (unsigned long) phba;
3772a991 4023 /* FCP polling mode timer */
875fbdfe
JSEC		 4024 init_timer(&phba->fcp_poll_timer);
4025 phba->fcp_poll_timer.function = lpfc_poll_timeout;
2e0fef85 4026 phba->fcp_poll_timer.data = (unsigned long) phba;
3772a991 4027 /* Fabric block timer */
92d7f7b0
JS		 4028 init_timer(&phba->fabric_block_timer);
4029 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4030 phba->fabric_block_timer.data = (unsigned long) phba;
3772a991 4031 /* EA polling mode timer */
9399627f
JS		 4032 init_timer(&phba->eratt_poll);
4033 phba->eratt_poll.function = lpfc_poll_eratt;
4034 phba->eratt_poll.data = (unsigned long) phba;
dea3101e 4035
3772a991
JS		 4036 /* Host attention work mask setup */
4037 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4038 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
dea3101e 4039
3772a991
JS		 4040 /* Get all the module params for configuring this host */
4041 lpfc_get_cfgparam(phba);
49198b37
JS		 4042 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4043 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4044 /* check for menlo minimum sg count */
4045 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4046 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4047 }
4048
dea3101e 4049 /*
3772a991
JS		 4050 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4051 * used to create the sg_dma_buf_pool must be dynamically calculated.
4052 * 2 segments are added since the IOCB needs a command and response bde.
dea3101e 4053 */
3772a991
JS		 4054 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4055 sizeof(struct fcp_rsp) +
4056 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4057
4058 if (phba->cfg_enable_bg) {
4059 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4060 phba->cfg_sg_dma_buf_size +=
4061 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
901a920f 4062 }
dea3101e 4063
3772a991
JS		 4064 /* Also reinitialize the host templates with new values. */
4065 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4066 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
dea3101e 4067
3772a991
JS		 4068 phba->max_vpi = LPFC_MAX_VPI;
4069 /* This will be set to correct value after config_port mbox */
4070 phba->max_vports = 0;
dea3101e 4071
3772a991
JS		 4072 /*
4073 * Initialize the SLI Layer to run with lpfc HBAs.
4074 */
4075 lpfc_sli_setup(phba);
4076 lpfc_sli_queue_setup(phba);
ed957684 4077
3772a991
JS		 4078 /* Allocate device driver memory */
4079 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4080 return -ENOMEM;
51ef4c26 4081
3772a991
JS		 4082 return 0;
4083}
ed957684 4084
3772a991
JS		 4085/**
4086 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4087 * @phba: pointer to lpfc hba data structure.
4088 *
4089 * This routine is invoked to unset the driver internal resources set up
4090 * specific for supporting the SLI-3 HBA device it attached to.
4091 **/
4092static void
4093lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4094{
4095 /* Free device driver memory allocated */
4096 lpfc_mem_free_all(phba);
3163f725 4097
3772a991
JS		 4098 return;
4099}
dea3101e 4100
3772a991 4101/**
da0436e9 4102 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3772a991
JS		 4103 * @phba: pointer to lpfc hba data structure.
4104 *
da0436e9
JS		 4105 * This routine is invoked to set up the driver internal resources specific to
4106 * support the SLI-4 HBA device it attached to.
3772a991
JS		 4107 *
4108 * Return codes
af901ca1 4109 * 0 - successful
da0436e9 4110 * other values - error
3772a991
JS		 4111 **/
4112static int
da0436e9 4113lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3772a991 4114{
da0436e9 4115 struct lpfc_sli *psli;
28baac74
JS		 4116 LPFC_MBOXQ_t *mboxq;
4117 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
4118 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4119 struct lpfc_mqe *mqe;
085c647c 4120 int longs, sli_family;
da0436e9
JS		 4121
4122 /* Before proceed, wait for POST done and device ready */
4123 rc = lpfc_sli4_post_status_check(phba);
4124 if (rc)
4125 return -ENODEV;
4126
3772a991 4127 /*
da0436e9 4128 * Initialize timers used by driver
3772a991 4129 */
3772a991 4130
da0436e9
JS		 4131 /* Heartbeat timer */
4132 init_timer(&phba->hb_tmofunc);
4133 phba->hb_tmofunc.function = lpfc_hb_timeout;
4134 phba->hb_tmofunc.data = (unsigned long)phba;
19ca7609
JS		 4135 init_timer(&phba->rrq_tmr);
4136 phba->rrq_tmr.function = lpfc_rrq_timeout;
4137 phba->rrq_tmr.data = (unsigned long)phba;
3772a991 4138
da0436e9
JS		 4139 psli = &phba->sli;
4140 /* MBOX heartbeat timer */
4141 init_timer(&psli->mbox_tmo);
4142 psli->mbox_tmo.function = lpfc_mbox_timeout;
4143 psli->mbox_tmo.data = (unsigned long) phba;
4144 /* Fabric block timer */
4145 init_timer(&phba->fabric_block_timer);
4146 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4147 phba->fabric_block_timer.data = (unsigned long) phba;
4148 /* EA polling mode timer */
4149 init_timer(&phba->eratt_poll);
4150 phba->eratt_poll.function = lpfc_poll_eratt;
4151 phba->eratt_poll.data = (unsigned long) phba;
ecfd03c6
JS		 4152 /* FCF rediscover timer */
4153 init_timer(&phba->fcf.redisc_wait);
4154 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4155 phba->fcf.redisc_wait.data = (unsigned long)phba;
4156
da0436e9
JS		 4157 /*
4158 * We need to do a READ_CONFIG mailbox command here before
4159 * calling lpfc_get_cfgparam. For VFs this will report the
4160 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4161 * All of the resources allocated
4162 * for this Port are tied to these values.
4163 */
4164 /* Get all the module params for configuring this host */
4165 lpfc_get_cfgparam(phba);
4166 phba->max_vpi = LPFC_MAX_VPI;
4167 /* This will be set to correct value after the read_config mbox */
4168 phba->max_vports = 0;
3772a991 4169
da0436e9
JS		 4170 /* Program the default value of vlan_id and fc_map */
4171 phba->valid_vlan = 0;
4172 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4173 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4174 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
3772a991 4175
da0436e9
JS		 4176 /*
4177 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4178 * used to create the sg_dma_buf_pool must be dynamically calculated.
4179 * 2 segments are added since the IOCB needs a command and response bde.
4180 * To insure that the scsi sgl does not cross a 4k page boundary only
28baac74 4181 * sgl sizes of must be a power of 2.
da0436e9 4182 */
28baac74
JS		 4183 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4184 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
085c647c
JS		 4185
4186 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
4187 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4188 switch (sli_family) {
4189 case LPFC_SLI_INTF_FAMILY_BE2:
4190 case LPFC_SLI_INTF_FAMILY_BE3:
4191 /* There is a single hint for BE - 2 pages per BPL. */
4192 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
4193 LPFC_SLI_INTF_SLI_HINT1_1)
4194 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4195 break;
4196 case LPFC_SLI_INTF_FAMILY_LNCR_A0:
4197 case LPFC_SLI_INTF_FAMILY_LNCR_B0:
4198 default:
4199 break;
4200 }
28baac74
JS		 4201 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4202 dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4203 dma_buf_size = dma_buf_size << 1)
4204 ;
4205 if (dma_buf_size == max_buf_size)
4206 phba->cfg_sg_seg_cnt = (dma_buf_size -
4207 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4208 (2 * sizeof(struct sli4_sge))) /
4209 sizeof(struct sli4_sge);
4210 phba->cfg_sg_dma_buf_size = dma_buf_size;
3772a991 4211
da0436e9
JS		 4212 /* Initialize buffer queue management fields */
4213 hbq_count = lpfc_sli_hbq_count();
4214 for (i = 0; i < hbq_count; ++i)
4215 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4216 INIT_LIST_HEAD(&phba->rb_pend_list);
4217 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4218 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
3772a991 4219
da0436e9
JS		 4220 /*
4221 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4222 */
4223 /* Initialize the Abort scsi buffer list used by driver */
4224 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4225 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4226 /* This abort list used by worker thread */
4227 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
3772a991 4228
da0436e9
JS		 4229 /*
4230 * Initialize dirver internal slow-path work queues
4231 */
3772a991 4232
da0436e9
JS		 4233 /* Driver internel slow-path CQ Event pool */
4234 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4235 /* Response IOCB work queue list */
45ed1190 4236 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
da0436e9
JS		 4237 /* Asynchronous event CQ Event work queue list */
4238 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4239 /* Fast-path XRI aborted CQ Event work queue list */
4240 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4241 /* Slow-path XRI aborted CQ Event work queue list */
4242 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4243 /* Receive queue CQ Event work queue list */
4244 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4245
4246 /* Initialize the driver internal SLI layer lists. */
4247 lpfc_sli_setup(phba);
4248 lpfc_sli_queue_setup(phba);
3772a991 4249
da0436e9
JS		 4250 /* Allocate device driver memory */
4251 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4252 if (rc)
4253 return -ENOMEM;
4254
2fcee4bf
JS		 4255 /* IF Type 2 ports get initialized now. */
4256 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4257 LPFC_SLI_INTF_IF_TYPE_2) {
4258 rc = lpfc_pci_function_reset(phba);
4259 if (unlikely(rc))
4260 return -ENODEV;
4261 }
4262
da0436e9
JS		 4263 /* Create the bootstrap mailbox command */
4264 rc = lpfc_create_bootstrap_mbox(phba);
4265 if (unlikely(rc))
4266 goto out_free_mem;
4267
4268 /* Set up the host's endian order with the device. */
4269 rc = lpfc_setup_endian_order(phba);
4270 if (unlikely(rc))
4271 goto out_free_bsmbx;
4272
4273 /* Set up the hba's configuration parameters. */
4274 rc = lpfc_sli4_read_config(phba);
4275 if (unlikely(rc))
4276 goto out_free_bsmbx;
4277
2fcee4bf
JS		 4278 /* IF Type 0 ports get initialized now. */
4279 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4280 LPFC_SLI_INTF_IF_TYPE_0) {
4281 rc = lpfc_pci_function_reset(phba);
4282 if (unlikely(rc))
4283 goto out_free_bsmbx;
4284 }
da0436e9 4285
cb5172ea
JS		 4286 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4287 GFP_KERNEL);
4288 if (!mboxq) {
4289 rc = -ENOMEM;
4290 goto out_free_bsmbx;
4291 }
4292
fedd3b7b 4293 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
cb5172ea
JS		 4294 lpfc_supported_pages(mboxq);
4295 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
fedd3b7b
JS		 4296 if (!rc) {
4297 mqe = &mboxq->u.mqe;
4298 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4299 LPFC_MAX_SUPPORTED_PAGES);
4300 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4301 switch (pn_page[i]) {
4302 case LPFC_SLI4_PARAMETERS:
4303 phba->sli4_hba.pc_sli4_params.supported = 1;
4304 break;
4305 default:
4306 break;
4307 }
4308 }
4309 /* Read the port's SLI4 Parameters capabilities if supported. */
4310 if (phba->sli4_hba.pc_sli4_params.supported)
4311 rc = lpfc_pc_sli4_params_get(phba, mboxq);
4312 if (rc) {
4313 mempool_free(mboxq, phba->mbox_mem_pool);
4314 rc = -EIO;
4315 goto out_free_bsmbx;
cb5172ea
JS		 4316 }
4317 }
fedd3b7b
JS		 4318 /*
4319 * Get sli4 parameters that override parameters from Port capabilities.
4320 * If this call fails it is not a critical error so continue loading.
4321 */
4322 lpfc_get_sli4_parameters(phba, mboxq);
cb5172ea 4323 mempool_free(mboxq, phba->mbox_mem_pool);
da0436e9
JS		 4324 /* Create all the SLI4 queues */
4325 rc = lpfc_sli4_queue_create(phba);
4326 if (rc)
4327 goto out_free_bsmbx;
4328
4329 /* Create driver internal CQE event pool */
4330 rc = lpfc_sli4_cq_event_pool_create(phba);
4331 if (rc)
4332 goto out_destroy_queue;
4333
4334 /* Initialize and populate the iocb list per host */
4335 rc = lpfc_init_sgl_list(phba);
4336 if (rc) {
4337 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4338 "1400 Failed to initialize sgl list.\n");
4339 goto out_destroy_cq_event_pool;
4340 }
4341 rc = lpfc_init_active_sgl_array(phba);
4342 if (rc) {
4343 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4344 "1430 Failed to initialize sgl list.\n");
4345 goto out_free_sgl_list;
4346 }
4347
4348 rc = lpfc_sli4_init_rpi_hdrs(phba);
4349 if (rc) {
4350 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4351 "1432 Failed to initialize rpi headers.\n");
4352 goto out_free_active_sgl;
4353 }
4354
a93ff37a 4355 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
0c9ab6f5
JS		 4356 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4357 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4358 GFP_KERNEL);
4359 if (!phba->fcf.fcf_rr_bmask) {
4360 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4361 "2759 Failed allocate memory for FCF round "
4362 "robin failover bmask\n");
4363 goto out_remove_rpi_hdrs;
4364 }
4365
da0436e9
JS		 4366 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4367 phba->cfg_fcp_eq_count), GFP_KERNEL);
4368 if (!phba->sli4_hba.fcp_eq_hdl) {
4369 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4370 "2572 Failed allocate memory for fast-path "
4371 "per-EQ handle array\n");
0c9ab6f5 4372 goto out_free_fcf_rr_bmask;
da0436e9
JS		 4373 }
4374
4375 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4376 phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4377 if (!phba->sli4_hba.msix_entries) {
4378 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4379 "2573 Failed allocate memory for msi-x "
4380 "interrupt vector entries\n");
4381 goto out_free_fcp_eq_hdl;
4382 }
4383
4384 return rc;
4385
4386out_free_fcp_eq_hdl:
4387 kfree(phba->sli4_hba.fcp_eq_hdl);
0c9ab6f5
JS		 4388out_free_fcf_rr_bmask:
4389 kfree(phba->fcf.fcf_rr_bmask);
da0436e9
JS		 4390out_remove_rpi_hdrs:
4391 lpfc_sli4_remove_rpi_hdrs(phba);
4392out_free_active_sgl:
4393 lpfc_free_active_sgl(phba);
4394out_free_sgl_list:
4395 lpfc_free_sgl_list(phba);
4396out_destroy_cq_event_pool:
4397 lpfc_sli4_cq_event_pool_destroy(phba);
4398out_destroy_queue:
4399 lpfc_sli4_queue_destroy(phba);
4400out_free_bsmbx:
4401 lpfc_destroy_bootstrap_mbox(phba);
4402out_free_mem:
4403 lpfc_mem_free(phba);
4404 return rc;
4405}
4406
4407/**
4408 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4409 * @phba: pointer to lpfc hba data structure.
4410 *
4411 * This routine is invoked to unset the driver internal resources set up
4412 * specific for supporting the SLI-4 HBA device it attached to.
4413 **/
4414static void
4415lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4416{
4417 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4418
da0436e9
JS		 4419 /* Free memory allocated for msi-x interrupt vector entries */
4420 kfree(phba->sli4_hba.msix_entries);
4421
4422 /* Free memory allocated for fast-path work queue handles */
4423 kfree(phba->sli4_hba.fcp_eq_hdl);
4424
4425 /* Free the allocated rpi headers. */
4426 lpfc_sli4_remove_rpi_hdrs(phba);
d11e31dd 4427 lpfc_sli4_remove_rpis(phba);
da0436e9 4428
0c9ab6f5
JS		 4429 /* Free eligible FCF index bmask */
4430 kfree(phba->fcf.fcf_rr_bmask);
4431
da0436e9
JS		 4432 /* Free the ELS sgl list */
4433 lpfc_free_active_sgl(phba);
4434 lpfc_free_sgl_list(phba);
4435
4436 /* Free the SCSI sgl management array */
4437 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4438
4439 /* Free the SLI4 queues */
4440 lpfc_sli4_queue_destroy(phba);
4441
4442 /* Free the completion queue EQ event pool */
4443 lpfc_sli4_cq_event_release_all(phba);
4444 lpfc_sli4_cq_event_pool_destroy(phba);
4445
da0436e9
JS		 4446 /* Free the bsmbx region. */
4447 lpfc_destroy_bootstrap_mbox(phba);
4448
4449 /* Free the SLI Layer memory with SLI4 HBAs */
4450 lpfc_mem_free_all(phba);
4451
4452 /* Free the current connect table */
4453 list_for_each_entry_safe(conn_entry, next_conn_entry,
4d9ab994
JS		 4454 &phba->fcf_conn_rec_list, list) {
4455 list_del_init(&conn_entry->list);
da0436e9 4456 kfree(conn_entry);
4d9ab994 4457 }
da0436e9
JS		 4458
4459 return;
4460}
4461
4462/**
4463 * lpfc_init_api_table_setup - Set up init api fucntion jump table
4464 * @phba: The hba struct for which this call is being executed.
4465 * @dev_grp: The HBA PCI-Device group number.
4466 *
4467 * This routine sets up the device INIT interface API function jump table
4468 * in @phba struct.
4469 *
4470 * Returns: 0 - success, -ENODEV - failure.
4471 **/
4472int
4473lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4474{
84d1b006
JS		 4475 phba->lpfc_hba_init_link = lpfc_hba_init_link;
4476 phba->lpfc_hba_down_link = lpfc_hba_down_link;
da0436e9
JS		 4477 switch (dev_grp) {
4478 case LPFC_PCI_DEV_LP:
4479 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4480 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4481 phba->lpfc_stop_port = lpfc_stop_port_s3;
4482 break;
4483 case LPFC_PCI_DEV_OC:
4484 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4485 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4486 phba->lpfc_stop_port = lpfc_stop_port_s4;
4487 break;
4488 default:
4489 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4490 "1431 Invalid HBA PCI-device group: 0x%x\n",
4491 dev_grp);
4492 return -ENODEV;
4493 break;
4494 }
4495 return 0;
4496}
4497
4498/**
4499 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4500 * @phba: pointer to lpfc hba data structure.
4501 *
4502 * This routine is invoked to set up the driver internal resources before the
4503 * device specific resource setup to support the HBA device it attached to.
4504 *
4505 * Return codes
af901ca1 4506 * 0 - successful
da0436e9
JS		 4507 * other values - error
4508 **/
4509static int
4510lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4511{
4512 /*
4513 * Driver resources common to all SLI revisions
4514 */
4515 atomic_set(&phba->fast_event_count, 0);
4516 spin_lock_init(&phba->hbalock);
4517
4518 /* Initialize ndlp management spinlock */
4519 spin_lock_init(&phba->ndlp_lock);
4520
4521 INIT_LIST_HEAD(&phba->port_list);
4522 INIT_LIST_HEAD(&phba->work_list);
4523 init_waitqueue_head(&phba->wait_4_mlo_m_q);
4524
4525 /* Initialize the wait queue head for the kernel thread */
4526 init_waitqueue_head(&phba->work_waitq);
4527
4528 /* Initialize the scsi buffer list used by driver for scsi IO */
4529 spin_lock_init(&phba->scsi_buf_list_lock);
4530 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4531
4532 /* Initialize the fabric iocb list */
4533 INIT_LIST_HEAD(&phba->fabric_iocb_list);
4534
4535 /* Initialize list to save ELS buffers */
4536 INIT_LIST_HEAD(&phba->elsbuf);
4537
4538 /* Initialize FCF connection rec list */
4539 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4540
4541 return 0;
4542}
4543
4544/**
4545 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4546 * @phba: pointer to lpfc hba data structure.
4547 *
4548 * This routine is invoked to set up the driver internal resources after the
4549 * device specific resource setup to support the HBA device it attached to.
4550 *
4551 * Return codes
af901ca1 4552 * 0 - successful
da0436e9
JS		 4553 * other values - error
4554 **/
4555static int
4556lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4557{
4558 int error;
4559
4560 /* Startup the kernel thread for this host adapter. */
4561 phba->worker_thread = kthread_run(lpfc_do_work, phba,
4562 "lpfc_worker_%d", phba->brd_no);
4563 if (IS_ERR(phba->worker_thread)) {
4564 error = PTR_ERR(phba->worker_thread);
4565 return error;
3772a991
JS		 4566 }
4567
4568 return 0;
4569}
4570
4571/**
4572 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4573 * @phba: pointer to lpfc hba data structure.
4574 *
4575 * This routine is invoked to unset the driver internal resources set up after
4576 * the device specific resource setup for supporting the HBA device it
4577 * attached to.
4578 **/
4579static void
4580lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4581{
4582 /* Stop kernel worker thread */
4583 kthread_stop(phba->worker_thread);
4584}
4585
4586/**
4587 * lpfc_free_iocb_list - Free iocb list.
4588 * @phba: pointer to lpfc hba data structure.
4589 *
4590 * This routine is invoked to free the driver's IOCB list and memory.
4591 **/
4592static void
4593lpfc_free_iocb_list(struct lpfc_hba *phba)
4594{
4595 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4596
4597 spin_lock_irq(&phba->hbalock);
4598 list_for_each_entry_safe(iocbq_entry, iocbq_next,
4599 &phba->lpfc_iocb_list, list) {
4600 list_del(&iocbq_entry->list);
4601 kfree(iocbq_entry);
4602 phba->total_iocbq_bufs--;
98c9ea5c 4603 }
3772a991
JS		 4604 spin_unlock_irq(&phba->hbalock);
4605
4606 return;
4607}
4608
4609/**
4610 * lpfc_init_iocb_list - Allocate and initialize iocb list.
4611 * @phba: pointer to lpfc hba data structure.
4612 *
4613 * This routine is invoked to allocate and initizlize the driver's IOCB
4614 * list and set up the IOCB tag array accordingly.
4615 *
4616 * Return codes
af901ca1 4617 * 0 - successful
3772a991
JS		 4618 * other values - error
4619 **/
4620static int
4621lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4622{
4623 struct lpfc_iocbq *iocbq_entry = NULL;
4624 uint16_t iotag;
4625 int i;
dea3101e
JB		 4626
4627 /* Initialize and populate the iocb list per host. */
4628 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
3772a991 4629 for (i = 0; i < iocb_count; i++) {
dd00cc48 4630 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
dea3101e
JB		 4631 if (iocbq_entry == NULL) {
4632 printk(KERN_ERR "%s: only allocated %d iocbs of "
4633 "expected %d count. Unloading driver.\n",
cadbd4a5 4634 __func__, i, LPFC_IOCB_LIST_CNT);
dea3101e
JB		 4635 goto out_free_iocbq;
4636 }
4637
604a3e30
JB		 4638 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4639 if (iotag == 0) {
3772a991 4640 kfree(iocbq_entry);
604a3e30 4641 printk(KERN_ERR "%s: failed to allocate IOTAG. "
3772a991 4642 "Unloading driver.\n", __func__);
604a3e30
JB		 4643 goto out_free_iocbq;
4644 }
3772a991 4645 iocbq_entry->sli4_xritag = NO_XRI;
2e0fef85
JS		 4646
4647 spin_lock_irq(&phba->hbalock);
dea3101e
JB		 4648 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4649 phba->total_iocbq_bufs++;
2e0fef85 4650 spin_unlock_irq(&phba->hbalock);
dea3101e
JB		 4651 }
4652
3772a991 4653 return 0;
dea3101e 4654
3772a991
JS		 4655out_free_iocbq:
4656 lpfc_free_iocb_list(phba);
dea3101e 4657
3772a991
JS		 4658 return -ENOMEM;
4659}
5e9d9b82 4660
3772a991 4661/**
da0436e9
JS		 4662 * lpfc_free_sgl_list - Free sgl list.
4663 * @phba: pointer to lpfc hba data structure.
3772a991 4664 *
da0436e9 4665 * This routine is invoked to free the driver's sgl list and memory.
3772a991 4666 **/
da0436e9
JS		 4667static void
4668lpfc_free_sgl_list(struct lpfc_hba *phba)
3772a991 4669{
da0436e9
JS		 4670 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
4671 LIST_HEAD(sglq_list);
dea3101e 4672
da0436e9
JS		 4673 spin_lock_irq(&phba->hbalock);
4674 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
4675 spin_unlock_irq(&phba->hbalock);
dea3101e 4676
da0436e9
JS		 4677 list_for_each_entry_safe(sglq_entry, sglq_next,
4678 &sglq_list, list) {
4679 list_del(&sglq_entry->list);
4680 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
4681 kfree(sglq_entry);
4682 phba->sli4_hba.total_sglq_bufs--;
4683 }
da0436e9
JS		 4684 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4685}
92d7f7b0 4686
da0436e9
JS		 4687/**
4688 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4689 * @phba: pointer to lpfc hba data structure.
4690 *
4691 * This routine is invoked to allocate the driver's active sgl memory.
4692 * This array will hold the sglq_entry's for active IOs.
4693 **/
4694static int
4695lpfc_init_active_sgl_array(struct lpfc_hba *phba)
4696{
4697 int size;
4698 size = sizeof(struct lpfc_sglq *);
4699 size *= phba->sli4_hba.max_cfg_param.max_xri;
4700
4701 phba->sli4_hba.lpfc_sglq_active_list =
4702 kzalloc(size, GFP_KERNEL);
4703 if (!phba->sli4_hba.lpfc_sglq_active_list)
4704 return -ENOMEM;
4705 return 0;
3772a991
JS		 4706}
4707
4708/**
da0436e9 4709 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
3772a991
JS		 4710 * @phba: pointer to lpfc hba data structure.
4711 *
da0436e9
JS		 4712 * This routine is invoked to walk through the array of active sglq entries
4713 * and free all of the resources.
4714 * This is just a place holder for now.
3772a991
JS		 4715 **/
4716static void
da0436e9 4717lpfc_free_active_sgl(struct lpfc_hba *phba)
3772a991 4718{
da0436e9 4719 kfree(phba->sli4_hba.lpfc_sglq_active_list);
3772a991
JS		 4720}
4721
4722/**
da0436e9 4723 * lpfc_init_sgl_list - Allocate and initialize sgl list.
3772a991
JS		 4724 * @phba: pointer to lpfc hba data structure.
4725 *
da0436e9
JS		 4726 * This routine is invoked to allocate and initizlize the driver's sgl
4727 * list and set up the sgl xritag tag array accordingly.
3772a991
JS		 4728 *
4729 * Return codes
af901ca1 4730 * 0 - successful
da0436e9 4731 * other values - error
3772a991
JS		 4732 **/
4733static int
da0436e9 4734lpfc_init_sgl_list(struct lpfc_hba *phba)
3772a991 4735{
da0436e9
JS		 4736 struct lpfc_sglq *sglq_entry = NULL;
4737 int i;
4738 int els_xri_cnt;
4739
4740 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4741 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4742 "2400 lpfc_init_sgl_list els %d.\n",
4743 els_xri_cnt);
4744 /* Initialize and populate the sglq list per host/VF. */
4745 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4746 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4747
4748 /* Sanity check on XRI management */
4749 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4750 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4751 "2562 No room left for SCSI XRI allocation: "
4752 "max_xri=%d, els_xri=%d\n",
4753 phba->sli4_hba.max_cfg_param.max_xri,
4754 els_xri_cnt);
4755 return -ENOMEM;
4756 }
3772a991 4757
da0436e9
JS		 4758 /* Allocate memory for the ELS XRI management array */
4759 phba->sli4_hba.lpfc_els_sgl_array =
4760 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4761 GFP_KERNEL);
0ff10d46 4762
da0436e9
JS		 4763 if (!phba->sli4_hba.lpfc_els_sgl_array) {
4764 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4765 "2401 Failed to allocate memory for ELS "
4766 "XRI management array of size %d.\n",
4767 els_xri_cnt);
4768 return -ENOMEM;
4769 }
2e0fef85 4770
da0436e9
JS		 4771 /* Keep the SCSI XRI into the XRI management array */
4772 phba->sli4_hba.scsi_xri_max =
4773 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4774 phba->sli4_hba.scsi_xri_cnt = 0;
4775
4776 phba->sli4_hba.lpfc_scsi_psb_array =
4777 kzalloc((sizeof(struct lpfc_scsi_buf *) *
4778 phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4779
4780 if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4781 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4782 "2563 Failed to allocate memory for SCSI "
4783 "XRI management array of size %d.\n",
4784 phba->sli4_hba.scsi_xri_max);
4785 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4786 return -ENOMEM;
4787 }
4788
4789 for (i = 0; i < els_xri_cnt; i++) {
4790 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4791 if (sglq_entry == NULL) {
4792 printk(KERN_ERR "%s: only allocated %d sgls of "
4793 "expected %d count. Unloading driver.\n",
4794 __func__, i, els_xri_cnt);
4795 goto out_free_mem;
4796 }
4797
4798 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba);
4799 if (sglq_entry->sli4_xritag == NO_XRI) {
4800 kfree(sglq_entry);
4801 printk(KERN_ERR "%s: failed to allocate XRI.\n"
4802 "Unloading driver.\n", __func__);
4803 goto out_free_mem;
4804 }
4805 sglq_entry->buff_type = GEN_BUFF_TYPE;
4806 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4807 if (sglq_entry->virt == NULL) {
4808 kfree(sglq_entry);
4809 printk(KERN_ERR "%s: failed to allocate mbuf.\n"
4810 "Unloading driver.\n", __func__);
4811 goto out_free_mem;
4812 }
4813 sglq_entry->sgl = sglq_entry->virt;
4814 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4815
4816 /* The list order is used by later block SGL registraton */
4817 spin_lock_irq(&phba->hbalock);
0f65ff68 4818 sglq_entry->state = SGL_FREED;
da0436e9
JS		 4819 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
4820 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
4821 phba->sli4_hba.total_sglq_bufs++;
4822 spin_unlock_irq(&phba->hbalock);
4823 }
4824 return 0;
4825
4826out_free_mem:
4827 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4828 lpfc_free_sgl_list(phba);
4829 return -ENOMEM;
4830}
4831
4832/**
4833 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4834 * @phba: pointer to lpfc hba data structure.
4835 *
4836 * This routine is invoked to post rpi header templates to the
4837 * HBA consistent with the SLI-4 interface spec. This routine
4838 * posts a PAGE_SIZE memory region to the port to hold up to
4839 * PAGE_SIZE modulo 64 rpi context headers.
4840 * No locks are held here because this is an initialization routine
4841 * called only from probe or lpfc_online when interrupts are not
4842 * enabled and the driver is reinitializing the device.
4843 *
4844 * Return codes
af901ca1 4845 * 0 - successful
d439d286
JS		 4846 * -ENOMEM - No availble memory
4847 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 4848 **/
4849int
4850lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
4851{
4852 int rc = 0;
4853 int longs;
4854 uint16_t rpi_count;
4855 struct lpfc_rpi_hdr *rpi_hdr;
4856
4857 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
4858
4859 /*
4860 * Provision an rpi bitmask range for discovery. The total count
4861 * is the difference between max and base + 1.
4862 */
4863 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base +
4864 phba->sli4_hba.max_cfg_param.max_rpi - 1;
4865
4866 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG;
4867 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long),
4868 GFP_KERNEL);
4869 if (!phba->sli4_hba.rpi_bmask)
4870 return -ENOMEM;
4871
4872 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
4873 if (!rpi_hdr) {
4874 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4875 "0391 Error during rpi post operation\n");
4876 lpfc_sli4_remove_rpis(phba);
4877 rc = -ENODEV;
4878 }
4879
4880 return rc;
4881}
4882
4883/**
4884 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4885 * @phba: pointer to lpfc hba data structure.
4886 *
4887 * This routine is invoked to allocate a single 4KB memory region to
4888 * support rpis and stores them in the phba. This single region
4889 * provides support for up to 64 rpis. The region is used globally
4890 * by the device.
4891 *
4892 * Returns:
4893 * A valid rpi hdr on success.
4894 * A NULL pointer on any failure.
4895 **/
4896struct lpfc_rpi_hdr *
4897lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
4898{
4899 uint16_t rpi_limit, curr_rpi_range;
4900 struct lpfc_dmabuf *dmabuf;
4901 struct lpfc_rpi_hdr *rpi_hdr;
4902
4903 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
4904 phba->sli4_hba.max_cfg_param.max_rpi - 1;
4905
4906 spin_lock_irq(&phba->hbalock);
4907 curr_rpi_range = phba->sli4_hba.next_rpi;
4908 spin_unlock_irq(&phba->hbalock);
4909
4910 /*
4911 * The port has a limited number of rpis. The increment here
4912 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4913 * and to allow the full max_rpi range per port.
4914 */
4915 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
4916 return NULL;
4917
4918 /*
4919 * First allocate the protocol header region for the port. The
4920 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4921 */
4922 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4923 if (!dmabuf)
4924 return NULL;
4925
4926 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4927 LPFC_HDR_TEMPLATE_SIZE,
4928 &dmabuf->phys,
4929 GFP_KERNEL);
4930 if (!dmabuf->virt) {
4931 rpi_hdr = NULL;
4932 goto err_free_dmabuf;
4933 }
4934
4935 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
4936 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
4937 rpi_hdr = NULL;
4938 goto err_free_coherent;
4939 }
4940
4941 /* Save the rpi header data for cleanup later. */
4942 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
4943 if (!rpi_hdr)
4944 goto err_free_coherent;
4945
4946 rpi_hdr->dmabuf = dmabuf;
4947 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
4948 rpi_hdr->page_count = 1;
4949 spin_lock_irq(&phba->hbalock);
4950 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi;
4951 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
4952
4953 /*
4954 * The next_rpi stores the next module-64 rpi value to post
4955 * in any subsequent rpi memory region postings.
4956 */
4957 phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT;
4958 spin_unlock_irq(&phba->hbalock);
4959 return rpi_hdr;
4960
4961 err_free_coherent:
4962 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
4963 dmabuf->virt, dmabuf->phys);
4964 err_free_dmabuf:
4965 kfree(dmabuf);
4966 return NULL;
4967}
4968
4969/**
4970 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
4971 * @phba: pointer to lpfc hba data structure.
4972 *
4973 * This routine is invoked to remove all memory resources allocated
4974 * to support rpis. This routine presumes the caller has released all
4975 * rpis consumed by fabric or port logins and is prepared to have
4976 * the header pages removed.
4977 **/
4978void
4979lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
4980{
4981 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
4982
4983 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
4984 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
4985 list_del(&rpi_hdr->list);
4986 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
4987 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
4988 kfree(rpi_hdr->dmabuf);
4989 kfree(rpi_hdr);
4990 }
4991
4992 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
4993 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask));
4994}
4995
4996/**
4997 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
4998 * @pdev: pointer to pci device data structure.
4999 *
5000 * This routine is invoked to allocate the driver hba data structure for an
5001 * HBA device. If the allocation is successful, the phba reference to the
5002 * PCI device data structure is set.
5003 *
5004 * Return codes
af901ca1 5005 * pointer to @phba - successful
da0436e9
JS		 5006 * NULL - error
5007 **/
5008static struct lpfc_hba *
5009lpfc_hba_alloc(struct pci_dev *pdev)
5010{
5011 struct lpfc_hba *phba;
5012
5013 /* Allocate memory for HBA structure */
5014 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5015 if (!phba) {
e34ccdfe 5016 dev_err(&pdev->dev, "failed to allocate hba struct\n");
da0436e9
JS		 5017 return NULL;
5018 }
5019
5020 /* Set reference to PCI device in HBA structure */
5021 phba->pcidev = pdev;
5022
5023 /* Assign an unused board number */
5024 phba->brd_no = lpfc_get_instance();
5025 if (phba->brd_no < 0) {
5026 kfree(phba);
5027 return NULL;
5028 }
5029
4fede78f 5030 spin_lock_init(&phba->ct_ev_lock);
f1c3b0fc
JS		 5031 INIT_LIST_HEAD(&phba->ct_ev_waiters);
5032
da0436e9
JS		 5033 return phba;
5034}
5035
5036/**
5037 * lpfc_hba_free - Free driver hba data structure with a device.
5038 * @phba: pointer to lpfc hba data structure.
5039 *
5040 * This routine is invoked to free the driver hba data structure with an
5041 * HBA device.
5042 **/
5043static void
5044lpfc_hba_free(struct lpfc_hba *phba)
5045{
5046 /* Release the driver assigned board number */
5047 idr_remove(&lpfc_hba_index, phba->brd_no);
5048
5049 kfree(phba);
5050 return;
5051}
5052
5053/**
5054 * lpfc_create_shost - Create hba physical port with associated scsi host.
5055 * @phba: pointer to lpfc hba data structure.
5056 *
5057 * This routine is invoked to create HBA physical port and associate a SCSI
5058 * host with it.
5059 *
5060 * Return codes
af901ca1 5061 * 0 - successful
da0436e9
JS		 5062 * other values - error
5063 **/
5064static int
5065lpfc_create_shost(struct lpfc_hba *phba)
5066{
5067 struct lpfc_vport *vport;
5068 struct Scsi_Host *shost;
5069
5070 /* Initialize HBA FC structure */
5071 phba->fc_edtov = FF_DEF_EDTOV;
5072 phba->fc_ratov = FF_DEF_RATOV;
5073 phba->fc_altov = FF_DEF_ALTOV;
5074 phba->fc_arbtov = FF_DEF_ARBTOV;
5075
d7c47992 5076 atomic_set(&phba->sdev_cnt, 0);
da0436e9
JS		 5077 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5078 if (!vport)
5079 return -ENODEV;
5080
5081 shost = lpfc_shost_from_vport(vport);
5082 phba->pport = vport;
5083 lpfc_debugfs_initialize(vport);
5084 /* Put reference to SCSI host to driver's device private data */
5085 pci_set_drvdata(phba->pcidev, shost);
2e0fef85 5086
3772a991
JS		 5087 return 0;
5088}
db2378e0 5089
3772a991
JS		 5090/**
5091 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5092 * @phba: pointer to lpfc hba data structure.
5093 *
5094 * This routine is invoked to destroy HBA physical port and the associated
5095 * SCSI host.
5096 **/
5097static void
5098lpfc_destroy_shost(struct lpfc_hba *phba)
5099{
5100 struct lpfc_vport *vport = phba->pport;
5101
5102 /* Destroy physical port that associated with the SCSI host */
5103 destroy_port(vport);
5104
5105 return;
5106}
5107
5108/**
5109 * lpfc_setup_bg - Setup Block guard structures and debug areas.
5110 * @phba: pointer to lpfc hba data structure.
5111 * @shost: the shost to be used to detect Block guard settings.
5112 *
5113 * This routine sets up the local Block guard protocol settings for @shost.
5114 * This routine also allocates memory for debugging bg buffers.
5115 **/
5116static void
5117lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5118{
5119 int pagecnt = 10;
5120 if (lpfc_prot_mask && lpfc_prot_guard) {
5121 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5122 "1478 Registering BlockGuard with the "
5123 "SCSI layer\n");
5124 scsi_host_set_prot(shost, lpfc_prot_mask);
5125 scsi_host_set_guard(shost, lpfc_prot_guard);
5126 }
5127 if (!_dump_buf_data) {
5128 while (pagecnt) {
5129 spin_lock_init(&_dump_buf_lock);
5130 _dump_buf_data =
5131 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5132 if (_dump_buf_data) {
6a9c52cf
JS		 5133 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5134 "9043 BLKGRD: allocated %d pages for "
3772a991
JS		 5135 "_dump_buf_data at 0x%p\n",
5136 (1 << pagecnt), _dump_buf_data);
5137 _dump_buf_data_order = pagecnt;
5138 memset(_dump_buf_data, 0,
5139 ((1 << PAGE_SHIFT) << pagecnt));
5140 break;
5141 } else
5142 --pagecnt;
5143 }
5144 if (!_dump_buf_data_order)
6a9c52cf
JS		 5145 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5146 "9044 BLKGRD: ERROR unable to allocate "
3772a991
JS		 5147 "memory for hexdump\n");
5148 } else
6a9c52cf
JS		 5149 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5150 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
3772a991
JS		 5151 "\n", _dump_buf_data);
5152 if (!_dump_buf_dif) {
5153 while (pagecnt) {
5154 _dump_buf_dif =
5155 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5156 if (_dump_buf_dif) {
6a9c52cf
JS		 5157 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5158 "9046 BLKGRD: allocated %d pages for "
3772a991
JS		 5159 "_dump_buf_dif at 0x%p\n",
5160 (1 << pagecnt), _dump_buf_dif);
5161 _dump_buf_dif_order = pagecnt;
5162 memset(_dump_buf_dif, 0,
5163 ((1 << PAGE_SHIFT) << pagecnt));
5164 break;
5165 } else
5166 --pagecnt;
5167 }
5168 if (!_dump_buf_dif_order)
6a9c52cf
JS		 5169 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5170 "9047 BLKGRD: ERROR unable to allocate "
3772a991
JS		 5171 "memory for hexdump\n");
5172 } else
6a9c52cf
JS		 5173 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5174 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
3772a991
JS		 5175 _dump_buf_dif);
5176}
5177
5178/**
5179 * lpfc_post_init_setup - Perform necessary device post initialization setup.
5180 * @phba: pointer to lpfc hba data structure.
5181 *
5182 * This routine is invoked to perform all the necessary post initialization
5183 * setup for the device.
5184 **/
5185static void
5186lpfc_post_init_setup(struct lpfc_hba *phba)
5187{
5188 struct Scsi_Host *shost;
5189 struct lpfc_adapter_event_header adapter_event;
5190
5191 /* Get the default values for Model Name and Description */
5192 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5193
5194 /*
5195 * hba setup may have changed the hba_queue_depth so we need to
5196 * adjust the value of can_queue.
5197 */
5198 shost = pci_get_drvdata(phba->pcidev);
5199 shost->can_queue = phba->cfg_hba_queue_depth - 10;
5200 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5201 lpfc_setup_bg(phba, shost);
5202
5203 lpfc_host_attrib_init(shost);
5204
5205 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5206 spin_lock_irq(shost->host_lock);
5207 lpfc_poll_start_timer(phba);
5208 spin_unlock_irq(shost->host_lock);
5209 }
5210
5211 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5212 "0428 Perform SCSI scan\n");
5213 /* Send board arrival event to upper layer */
5214 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5215 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5216 fc_host_post_vendor_event(shost, fc_get_event_number(),
5217 sizeof(adapter_event),
5218 (char *) &adapter_event,
5219 LPFC_NL_VENDOR_ID);
5220 return;
5221}
5222
5223/**
5224 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5225 * @phba: pointer to lpfc hba data structure.
5226 *
5227 * This routine is invoked to set up the PCI device memory space for device
5228 * with SLI-3 interface spec.
5229 *
5230 * Return codes
af901ca1 5231 * 0 - successful
3772a991
JS		 5232 * other values - error
5233 **/
5234static int
5235lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5236{
5237 struct pci_dev *pdev;
5238 unsigned long bar0map_len, bar2map_len;
5239 int i, hbq_count;
5240 void *ptr;
5241 int error = -ENODEV;
5242
5243 /* Obtain PCI device reference */
5244 if (!phba->pcidev)
5245 return error;
5246 else
5247 pdev = phba->pcidev;
5248
5249 /* Set the device DMA mask size */
8e68597d
MR		 5250 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5251 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5252 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5253 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
3772a991 5254 return error;
8e68597d
MR		 5255 }
5256 }
3772a991
JS		 5257
5258 /* Get the bus address of Bar0 and Bar2 and the number of bytes
5259 * required by each mapping.
5260 */
5261 phba->pci_bar0_map = pci_resource_start(pdev, 0);
5262 bar0map_len = pci_resource_len(pdev, 0);
5263
5264 phba->pci_bar2_map = pci_resource_start(pdev, 2);
5265 bar2map_len = pci_resource_len(pdev, 2);
5266
5267 /* Map HBA SLIM to a kernel virtual address. */
5268 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5269 if (!phba->slim_memmap_p) {
5270 dev_printk(KERN_ERR, &pdev->dev,
5271 "ioremap failed for SLIM memory.\n");
5272 goto out;
5273 }
5274
5275 /* Map HBA Control Registers to a kernel virtual address. */
5276 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5277 if (!phba->ctrl_regs_memmap_p) {
5278 dev_printk(KERN_ERR, &pdev->dev,
5279 "ioremap failed for HBA control registers.\n");
5280 goto out_iounmap_slim;
5281 }
5282
5283 /* Allocate memory for SLI-2 structures */
5284 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5285 SLI2_SLIM_SIZE,
5286 &phba->slim2p.phys,
5287 GFP_KERNEL);
5288 if (!phba->slim2p.virt)
5289 goto out_iounmap;
5290
5291 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5292 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7a470277
JS		 5293 phba->mbox_ext = (phba->slim2p.virt +
5294 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
3772a991
JS		 5295 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5296 phba->IOCBs = (phba->slim2p.virt +
5297 offsetof(struct lpfc_sli2_slim, IOCBs));
5298
5299 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5300 lpfc_sli_hbq_size(),
5301 &phba->hbqslimp.phys,
5302 GFP_KERNEL);
5303 if (!phba->hbqslimp.virt)
5304 goto out_free_slim;
5305
5306 hbq_count = lpfc_sli_hbq_count();
5307 ptr = phba->hbqslimp.virt;
5308 for (i = 0; i < hbq_count; ++i) {
5309 phba->hbqs[i].hbq_virt = ptr;
5310 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5311 ptr += (lpfc_hbq_defs[i]->entry_count *
5312 sizeof(struct lpfc_hbq_entry));
5313 }
5314 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5315 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5316
5317 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5318
5319 INIT_LIST_HEAD(&phba->rb_pend_list);
5320
5321 phba->MBslimaddr = phba->slim_memmap_p;
5322 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5323 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5324 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5325 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5326
5327 return 0;
5328
5329out_free_slim:
5330 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5331 phba->slim2p.virt, phba->slim2p.phys);
5332out_iounmap:
5333 iounmap(phba->ctrl_regs_memmap_p);
5334out_iounmap_slim:
5335 iounmap(phba->slim_memmap_p);
5336out:
5337 return error;
5338}
5339
5340/**
5341 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5342 * @phba: pointer to lpfc hba data structure.
5343 *
5344 * This routine is invoked to unset the PCI device memory space for device
5345 * with SLI-3 interface spec.
5346 **/
5347static void
5348lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5349{
5350 struct pci_dev *pdev;
5351
5352 /* Obtain PCI device reference */
5353 if (!phba->pcidev)
5354 return;
5355 else
5356 pdev = phba->pcidev;
5357
5358 /* Free coherent DMA memory allocated */
5359 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5360 phba->hbqslimp.virt, phba->hbqslimp.phys);
5361 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5362 phba->slim2p.virt, phba->slim2p.phys);
5363
5364 /* I/O memory unmap */
5365 iounmap(phba->ctrl_regs_memmap_p);
5366 iounmap(phba->slim_memmap_p);
5367
5368 return;
5369}
5370
5371/**
da0436e9 5372 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
3772a991
JS		 5373 * @phba: pointer to lpfc hba data structure.
5374 *
da0436e9
JS		 5375 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5376 * done and check status.
3772a991 5377 *
da0436e9 5378 * Return 0 if successful, otherwise -ENODEV.
3772a991 5379 **/
da0436e9
JS		 5380int
5381lpfc_sli4_post_status_check(struct lpfc_hba *phba)
3772a991 5382{
2fcee4bf
JS		 5383 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
5384 struct lpfc_register reg_data;
5385 int i, port_error = 0;
5386 uint32_t if_type;
3772a991 5387
2fcee4bf 5388 if (!phba->sli4_hba.PSMPHRregaddr)
da0436e9 5389 return -ENODEV;
3772a991 5390
da0436e9
JS		 5391 /* Wait up to 30 seconds for the SLI Port POST done and ready */
5392 for (i = 0; i < 3000; i++) {
2fcee4bf
JS		 5393 portsmphr_reg.word0 = readl(phba->sli4_hba.PSMPHRregaddr);
5394 if (bf_get(lpfc_port_smphr_perr, &portsmphr_reg)) {
5395 /* Port has a fatal POST error, break out */
da0436e9
JS		 5396 port_error = -ENODEV;
5397 break;
5398 }
2fcee4bf
JS		 5399 if (LPFC_POST_STAGE_PORT_READY ==
5400 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
da0436e9 5401 break;
da0436e9 5402 msleep(10);
3772a991
JS		 5403 }
5404
2fcee4bf
JS		 5405 /*
5406 * If there was a port error during POST, then don't proceed with
5407 * other register reads as the data may not be valid. Just exit.
5408 */
5409 if (port_error) {
da0436e9 5410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2fcee4bf
JS		 5411 "1408 Port Failed POST - portsmphr=0x%x, "
5412 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
5413 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
5414 portsmphr_reg.word0,
5415 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
5416 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
5417 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
5418 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
5419 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
5420 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
5421 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
5422 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
5423 } else {
28baac74 5424 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2fcee4bf
JS		 5425 "2534 Device Info: SLIFamily=0x%x, "
5426 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
5427 "SLIHint_2=0x%x, FT=0x%x\n",
28baac74
JS		 5428 bf_get(lpfc_sli_intf_sli_family,
5429 &phba->sli4_hba.sli_intf),
5430 bf_get(lpfc_sli_intf_slirev,
5431 &phba->sli4_hba.sli_intf),
085c647c
JS		 5432 bf_get(lpfc_sli_intf_if_type,
5433 &phba->sli4_hba.sli_intf),
5434 bf_get(lpfc_sli_intf_sli_hint1,
28baac74 5435 &phba->sli4_hba.sli_intf),
085c647c
JS		 5436 bf_get(lpfc_sli_intf_sli_hint2,
5437 &phba->sli4_hba.sli_intf),
5438 bf_get(lpfc_sli_intf_func_type,
28baac74 5439 &phba->sli4_hba.sli_intf));
2fcee4bf
JS		 5440 /*
5441 * Check for other Port errors during the initialization
5442 * process. Fail the load if the port did not come up
5443 * correctly.
5444 */
5445 if_type = bf_get(lpfc_sli_intf_if_type,
5446 &phba->sli4_hba.sli_intf);
5447 switch (if_type) {
5448 case LPFC_SLI_INTF_IF_TYPE_0:
5449 phba->sli4_hba.ue_mask_lo =
5450 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
5451 phba->sli4_hba.ue_mask_hi =
5452 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
5453 uerrlo_reg.word0 =
5454 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
5455 uerrhi_reg.word0 =
5456 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
5457 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5458 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5459 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5460 "1422 Unrecoverable Error "
5461 "Detected during POST "
5462 "uerr_lo_reg=0x%x, "
5463 "uerr_hi_reg=0x%x, "
5464 "ue_mask_lo_reg=0x%x, "
5465 "ue_mask_hi_reg=0x%x\n",
5466 uerrlo_reg.word0,
5467 uerrhi_reg.word0,
5468 phba->sli4_hba.ue_mask_lo,
5469 phba->sli4_hba.ue_mask_hi);
5470 port_error = -ENODEV;
5471 }
5472 break;
5473 case LPFC_SLI_INTF_IF_TYPE_2:
5474 /* Final checks. The port status should be clean. */
5475 reg_data.word0 =
5476 readl(phba->sli4_hba.u.if_type2.STATUSregaddr);
5477 if (bf_get(lpfc_sliport_status_err, &reg_data)) {
5478 phba->work_status[0] =
5479 readl(phba->sli4_hba.u.if_type2.
5480 ERR1regaddr);
5481 phba->work_status[1] =
5482 readl(phba->sli4_hba.u.if_type2.
5483 ERR2regaddr);
5484 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5485 "2888 Port Error Detected "
5486 "during POST: "
5487 "port status reg 0x%x, "
5488 "port_smphr reg 0x%x, "
5489 "error 1=0x%x, error 2=0x%x\n",
5490 reg_data.word0,
5491 portsmphr_reg.word0,
5492 phba->work_status[0],
5493 phba->work_status[1]);
5494 port_error = -ENODEV;
5495 }
5496 break;
5497 case LPFC_SLI_INTF_IF_TYPE_1:
5498 default:
5499 break;
5500 }
28baac74 5501 }
da0436e9
JS		 5502 return port_error;
5503}
3772a991 5504
da0436e9
JS		 5505/**
5506 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5507 * @phba: pointer to lpfc hba data structure.
2fcee4bf 5508 * @if_type: The SLI4 interface type getting configured.
da0436e9
JS		 5509 *
5510 * This routine is invoked to set up SLI4 BAR0 PCI config space register
5511 * memory map.
5512 **/
5513static void
2fcee4bf
JS		 5514lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
5515{
5516 switch (if_type) {
5517 case LPFC_SLI_INTF_IF_TYPE_0:
5518 phba->sli4_hba.u.if_type0.UERRLOregaddr =
5519 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
5520 phba->sli4_hba.u.if_type0.UERRHIregaddr =
5521 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
5522 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
5523 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
5524 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
5525 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
5526 phba->sli4_hba.SLIINTFregaddr =
5527 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5528 break;
5529 case LPFC_SLI_INTF_IF_TYPE_2:
5530 phba->sli4_hba.u.if_type2.ERR1regaddr =
5531 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_ERR_1;
5532 phba->sli4_hba.u.if_type2.ERR2regaddr =
5533 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_ERR_2;
5534 phba->sli4_hba.u.if_type2.CTRLregaddr =
5535 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_CNTRL;
5536 phba->sli4_hba.u.if_type2.STATUSregaddr =
5537 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_STATUS;
5538 phba->sli4_hba.SLIINTFregaddr =
5539 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5540 phba->sli4_hba.PSMPHRregaddr =
5541 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_IF2_SMPHR;
5542 phba->sli4_hba.RQDBregaddr =
5543 phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
5544 phba->sli4_hba.WQDBregaddr =
5545 phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
5546 phba->sli4_hba.EQCQDBregaddr =
5547 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
5548 phba->sli4_hba.MQDBregaddr =
5549 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
5550 phba->sli4_hba.BMBXregaddr =
5551 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
5552 break;
5553 case LPFC_SLI_INTF_IF_TYPE_1:
5554 default:
5555 dev_printk(KERN_ERR, &phba->pcidev->dev,
5556 "FATAL - unsupported SLI4 interface type - %d\n",
5557 if_type);
5558 break;
5559 }
da0436e9 5560}
3772a991 5561
da0436e9
JS		 5562/**
5563 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5564 * @phba: pointer to lpfc hba data structure.
5565 *
5566 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5567 * memory map.
5568 **/
5569static void
5570lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5571{
2fcee4bf
JS		 5572 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5573 LPFC_SLIPORT_IF0_SMPHR;
da0436e9 5574 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 5575 LPFC_HST_ISR0;
da0436e9 5576 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 5577 LPFC_HST_IMR0;
da0436e9 5578 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 5579 LPFC_HST_ISCR0;
3772a991
JS		 5580}
5581
5582/**
da0436e9 5583 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
3772a991 5584 * @phba: pointer to lpfc hba data structure.
da0436e9 5585 * @vf: virtual function number
3772a991 5586 *
da0436e9
JS		 5587 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5588 * based on the given viftual function number, @vf.
5589 *
5590 * Return 0 if successful, otherwise -ENODEV.
3772a991 5591 **/
da0436e9
JS		 5592static int
5593lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
3772a991 5594{
da0436e9
JS		 5595 if (vf > LPFC_VIR_FUNC_MAX)
5596 return -ENODEV;
3772a991 5597
da0436e9
JS		 5598 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5599 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5600 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5601 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5602 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5603 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5604 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5605 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5606 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5607 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5608 return 0;
3772a991
JS		 5609}
5610
5611/**
da0436e9 5612 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
3772a991
JS		 5613 * @phba: pointer to lpfc hba data structure.
5614 *
da0436e9
JS		 5615 * This routine is invoked to create the bootstrap mailbox
5616 * region consistent with the SLI-4 interface spec. This
5617 * routine allocates all memory necessary to communicate
5618 * mailbox commands to the port and sets up all alignment
5619 * needs. No locks are expected to be held when calling
5620 * this routine.
3772a991
JS		 5621 *
5622 * Return codes
af901ca1 5623 * 0 - successful
d439d286 5624 * -ENOMEM - could not allocated memory.
da0436e9 5625 **/
3772a991 5626static int
da0436e9 5627lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
3772a991 5628{
da0436e9
JS		 5629 uint32_t bmbx_size;
5630 struct lpfc_dmabuf *dmabuf;
5631 struct dma_address *dma_address;
5632 uint32_t pa_addr;
5633 uint64_t phys_addr;
5634
5635 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5636 if (!dmabuf)
5637 return -ENOMEM;
3772a991 5638
da0436e9
JS		 5639 /*
5640 * The bootstrap mailbox region is comprised of 2 parts
5641 * plus an alignment restriction of 16 bytes.
5642 */
5643 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5644 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5645 bmbx_size,
5646 &dmabuf->phys,
5647 GFP_KERNEL);
5648 if (!dmabuf->virt) {
5649 kfree(dmabuf);
5650 return -ENOMEM;
3772a991 5651 }
da0436e9 5652 memset(dmabuf->virt, 0, bmbx_size);
3772a991 5653
da0436e9
JS		 5654 /*
5655 * Initialize the bootstrap mailbox pointers now so that the register
5656 * operations are simple later. The mailbox dma address is required
5657 * to be 16-byte aligned. Also align the virtual memory as each
5658 * maibox is copied into the bmbx mailbox region before issuing the
5659 * command to the port.
5660 */
5661 phba->sli4_hba.bmbx.dmabuf = dmabuf;
5662 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
5663
5664 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
5665 LPFC_ALIGN_16_BYTE);
5666 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
5667 LPFC_ALIGN_16_BYTE);
5668
5669 /*
5670 * Set the high and low physical addresses now. The SLI4 alignment
5671 * requirement is 16 bytes and the mailbox is posted to the port
5672 * as two 30-bit addresses. The other data is a bit marking whether
5673 * the 30-bit address is the high or low address.
5674 * Upcast bmbx aphys to 64bits so shift instruction compiles
5675 * clean on 32 bit machines.
5676 */
5677 dma_address = &phba->sli4_hba.bmbx.dma_address;
5678 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
5679 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
5680 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
5681 LPFC_BMBX_BIT1_ADDR_HI);
5682
5683 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
5684 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
5685 LPFC_BMBX_BIT1_ADDR_LO);
5686 return 0;
3772a991
JS		 5687}
5688
5689/**
da0436e9 5690 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
3772a991
JS		 5691 * @phba: pointer to lpfc hba data structure.
5692 *
da0436e9
JS		 5693 * This routine is invoked to teardown the bootstrap mailbox
5694 * region and release all host resources. This routine requires
5695 * the caller to ensure all mailbox commands recovered, no
5696 * additional mailbox comands are sent, and interrupts are disabled
5697 * before calling this routine.
5698 *
5699 **/
3772a991 5700static void
da0436e9 5701lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
3772a991 5702{
da0436e9
JS		 5703 dma_free_coherent(&phba->pcidev->dev,
5704 phba->sli4_hba.bmbx.bmbx_size,
5705 phba->sli4_hba.bmbx.dmabuf->virt,
5706 phba->sli4_hba.bmbx.dmabuf->phys);
5707
5708 kfree(phba->sli4_hba.bmbx.dmabuf);
5709 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
3772a991
JS		 5710}
5711
5712/**
da0436e9 5713 * lpfc_sli4_read_config - Get the config parameters.
3772a991
JS		 5714 * @phba: pointer to lpfc hba data structure.
5715 *
da0436e9
JS		 5716 * This routine is invoked to read the configuration parameters from the HBA.
5717 * The configuration parameters are used to set the base and maximum values
5718 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5719 * allocation for the port.
3772a991
JS		 5720 *
5721 * Return codes
af901ca1 5722 * 0 - successful
d439d286
JS		 5723 * -ENOMEM - No availble memory
5724 * -EIO - The mailbox failed to complete successfully.
3772a991 5725 **/
da0436e9
JS		 5726static int
5727lpfc_sli4_read_config(struct lpfc_hba *phba)
3772a991 5728{
da0436e9
JS		 5729 LPFC_MBOXQ_t *pmb;
5730 struct lpfc_mbx_read_config *rd_config;
5731 uint32_t rc = 0;
3772a991 5732
da0436e9
JS		 5733 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5734 if (!pmb) {
5735 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5736 "2011 Unable to allocate memory for issuing "
5737 "SLI_CONFIG_SPECIAL mailbox command\n");
5738 return -ENOMEM;
3772a991
JS		 5739 }
5740
da0436e9 5741 lpfc_read_config(phba, pmb);
3772a991 5742
da0436e9
JS		 5743 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5744 if (rc != MBX_SUCCESS) {
5745 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5746 "2012 Mailbox failed , mbxCmd x%x "
5747 "READ_CONFIG, mbxStatus x%x\n",
5748 bf_get(lpfc_mqe_command, &pmb->u.mqe),
5749 bf_get(lpfc_mqe_status, &pmb->u.mqe));
5750 rc = -EIO;
5751 } else {
5752 rd_config = &pmb->u.mqe.un.rd_config;
5753 phba->sli4_hba.max_cfg_param.max_xri =
5754 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
5755 phba->sli4_hba.max_cfg_param.xri_base =
5756 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
5757 phba->sli4_hba.max_cfg_param.max_vpi =
5758 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
5759 phba->sli4_hba.max_cfg_param.vpi_base =
5760 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
5761 phba->sli4_hba.max_cfg_param.max_rpi =
5762 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
5763 phba->sli4_hba.max_cfg_param.rpi_base =
5764 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
5765 phba->sli4_hba.max_cfg_param.max_vfi =
5766 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
5767 phba->sli4_hba.max_cfg_param.vfi_base =
5768 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
5769 phba->sli4_hba.max_cfg_param.max_fcfi =
5770 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
5771 phba->sli4_hba.max_cfg_param.fcfi_base =
5772 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config);
5773 phba->sli4_hba.max_cfg_param.max_eq =
5774 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
5775 phba->sli4_hba.max_cfg_param.max_rq =
5776 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
5777 phba->sli4_hba.max_cfg_param.max_wq =
5778 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
5779 phba->sli4_hba.max_cfg_param.max_cq =
5780 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
5781 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
5782 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
5783 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
5784 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5785 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
5ffc266e
JS		 5786 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
5787 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
da0436e9
JS		 5788 phba->max_vports = phba->max_vpi;
5789 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5790 "2003 cfg params XRI(B:%d M:%d), "
5791 "VPI(B:%d M:%d) "
5792 "VFI(B:%d M:%d) "
5793 "RPI(B:%d M:%d) "
5794 "FCFI(B:%d M:%d)\n",
5795 phba->sli4_hba.max_cfg_param.xri_base,
5796 phba->sli4_hba.max_cfg_param.max_xri,
5797 phba->sli4_hba.max_cfg_param.vpi_base,
5798 phba->sli4_hba.max_cfg_param.max_vpi,
5799 phba->sli4_hba.max_cfg_param.vfi_base,
5800 phba->sli4_hba.max_cfg_param.max_vfi,
5801 phba->sli4_hba.max_cfg_param.rpi_base,
5802 phba->sli4_hba.max_cfg_param.max_rpi,
5803 phba->sli4_hba.max_cfg_param.fcfi_base,
5804 phba->sli4_hba.max_cfg_param.max_fcfi);
3772a991 5805 }
da0436e9
JS		 5806 mempool_free(pmb, phba->mbox_mem_pool);
5807
5808 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
b92938b4
JS		 5809 if (phba->cfg_hba_queue_depth >
5810 (phba->sli4_hba.max_cfg_param.max_xri -
5811 lpfc_sli4_get_els_iocb_cnt(phba)))
da0436e9 5812 phba->cfg_hba_queue_depth =
b92938b4
JS		 5813 phba->sli4_hba.max_cfg_param.max_xri -
5814 lpfc_sli4_get_els_iocb_cnt(phba);
da0436e9 5815 return rc;
3772a991
JS		 5816}
5817
5818/**
2fcee4bf 5819 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
3772a991
JS		 5820 * @phba: pointer to lpfc hba data structure.
5821 *
2fcee4bf
JS		 5822 * This routine is invoked to setup the port-side endian order when
5823 * the port if_type is 0. This routine has no function for other
5824 * if_types.
da0436e9
JS		 5825 *
5826 * Return codes
af901ca1 5827 * 0 - successful
d439d286
JS		 5828 * -ENOMEM - No availble memory
5829 * -EIO - The mailbox failed to complete successfully.
3772a991 5830 **/
da0436e9
JS		 5831static int
5832lpfc_setup_endian_order(struct lpfc_hba *phba)
3772a991 5833{
da0436e9 5834 LPFC_MBOXQ_t *mboxq;
2fcee4bf 5835 uint32_t if_type, rc = 0;
da0436e9
JS		 5836 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
5837 HOST_ENDIAN_HIGH_WORD1};
3772a991 5838
2fcee4bf
JS		 5839 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
5840 switch (if_type) {
5841 case LPFC_SLI_INTF_IF_TYPE_0:
5842 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5843 GFP_KERNEL);
5844 if (!mboxq) {
5845 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5846 "0492 Unable to allocate memory for "
5847 "issuing SLI_CONFIG_SPECIAL mailbox "
5848 "command\n");
5849 return -ENOMEM;
5850 }
3772a991 5851
2fcee4bf
JS		 5852 /*
5853 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
5854 * two words to contain special data values and no other data.
5855 */
5856 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
5857 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
5858 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5859 if (rc != MBX_SUCCESS) {
5860 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5861 "0493 SLI_CONFIG_SPECIAL mailbox "
5862 "failed with status x%x\n",
5863 rc);
5864 rc = -EIO;
5865 }
5866 mempool_free(mboxq, phba->mbox_mem_pool);
5867 break;
5868 case LPFC_SLI_INTF_IF_TYPE_2:
5869 case LPFC_SLI_INTF_IF_TYPE_1:
5870 default:
5871 break;
da0436e9 5872 }
da0436e9 5873 return rc;
3772a991
JS		 5874}
5875
5876/**
da0436e9 5877 * lpfc_sli4_queue_create - Create all the SLI4 queues
3772a991
JS		 5878 * @phba: pointer to lpfc hba data structure.
5879 *
da0436e9
JS		 5880 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
5881 * operation. For each SLI4 queue type, the parameters such as queue entry
5882 * count (queue depth) shall be taken from the module parameter. For now,
5883 * we just use some constant number as place holder.
5884 *
5885 * Return codes
af901ca1 5886 * 0 - successful
d439d286
JS		 5887 * -ENOMEM - No availble memory
5888 * -EIO - The mailbox failed to complete successfully.
3772a991 5889 **/
da0436e9
JS		 5890static int
5891lpfc_sli4_queue_create(struct lpfc_hba *phba)
3772a991 5892{
da0436e9
JS		 5893 struct lpfc_queue *qdesc;
5894 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5895 int cfg_fcp_wq_count;
5896 int cfg_fcp_eq_count;
3772a991 5897
da0436e9
JS		 5898 /*
5899 * Sanity check for confiugred queue parameters against the run-time
5900 * device parameters
5901 */
3772a991 5902
da0436e9
JS		 5903 /* Sanity check on FCP fast-path WQ parameters */
5904 cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
5905 if (cfg_fcp_wq_count >
5906 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
5907 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
5908 LPFC_SP_WQN_DEF;
5909 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
5910 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5911 "2581 Not enough WQs (%d) from "
5912 "the pci function for supporting "
5913 "FCP WQs (%d)\n",
5914 phba->sli4_hba.max_cfg_param.max_wq,
5915 phba->cfg_fcp_wq_count);
5916 goto out_error;
5917 }
5918 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5919 "2582 Not enough WQs (%d) from the pci "
5920 "function for supporting the requested "
5921 "FCP WQs (%d), the actual FCP WQs can "
5922 "be supported: %d\n",
5923 phba->sli4_hba.max_cfg_param.max_wq,
5924 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
5925 }
5926 /* The actual number of FCP work queues adopted */
5927 phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
5928
5929 /* Sanity check on FCP fast-path EQ parameters */
5930 cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
5931 if (cfg_fcp_eq_count >
5932 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
5933 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
5934 LPFC_SP_EQN_DEF;
5935 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
5936 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5937 "2574 Not enough EQs (%d) from the "
5938 "pci function for supporting FCP "
5939 "EQs (%d)\n",
5940 phba->sli4_hba.max_cfg_param.max_eq,
5941 phba->cfg_fcp_eq_count);
5942 goto out_error;
5943 }
5944 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5945 "2575 Not enough EQs (%d) from the pci "
5946 "function for supporting the requested "
5947 "FCP EQs (%d), the actual FCP EQs can "
5948 "be supported: %d\n",
5949 phba->sli4_hba.max_cfg_param.max_eq,
5950 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
5951 }
5952 /* It does not make sense to have more EQs than WQs */
5953 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
5954 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6a9c52cf
JS		 5955 "2593 The FCP EQ count(%d) cannot be greater "
5956 "than the FCP WQ count(%d), limiting the "
5957 "FCP EQ count to %d\n", cfg_fcp_eq_count,
da0436e9
JS		 5958 phba->cfg_fcp_wq_count,
5959 phba->cfg_fcp_wq_count);
5960 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
5961 }
5962 /* The actual number of FCP event queues adopted */
5963 phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
5964 /* The overall number of event queues used */
5965 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
3772a991 5966
da0436e9
JS		 5967 /*
5968 * Create Event Queues (EQs)
5969 */
3772a991 5970
da0436e9
JS		 5971 /* Get EQ depth from module parameter, fake the default for now */
5972 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
5973 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
3772a991 5974
da0436e9
JS		 5975 /* Create slow path event queue */
5976 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5977 phba->sli4_hba.eq_ecount);
5978 if (!qdesc) {
5979 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5980 "0496 Failed allocate slow-path EQ\n");
5981 goto out_error;
5982 }
5983 phba->sli4_hba.sp_eq = qdesc;
5984
5985 /* Create fast-path FCP Event Queue(s) */
5986 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
5987 phba->cfg_fcp_eq_count), GFP_KERNEL);
5988 if (!phba->sli4_hba.fp_eq) {
5989 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5990 "2576 Failed allocate memory for fast-path "
5991 "EQ record array\n");
5992 goto out_free_sp_eq;
5993 }
5994 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5995 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5996 phba->sli4_hba.eq_ecount);
5997 if (!qdesc) {
5998 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5999 "0497 Failed allocate fast-path EQ\n");
6000 goto out_free_fp_eq;
6001 }
6002 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
6003 }
6004
6005 /*
6006 * Create Complete Queues (CQs)
6007 */
6008
6009 /* Get CQ depth from module parameter, fake the default for now */
6010 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6011 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6012
6013 /* Create slow-path Mailbox Command Complete Queue */
6014 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6015 phba->sli4_hba.cq_ecount);
6016 if (!qdesc) {
6017 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6018 "0500 Failed allocate slow-path mailbox CQ\n");
6019 goto out_free_fp_eq;
6020 }
6021 phba->sli4_hba.mbx_cq = qdesc;
6022
6023 /* Create slow-path ELS Complete Queue */
6024 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6025 phba->sli4_hba.cq_ecount);
6026 if (!qdesc) {
6027 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6028 "0501 Failed allocate slow-path ELS CQ\n");
6029 goto out_free_mbx_cq;
6030 }
6031 phba->sli4_hba.els_cq = qdesc;
6032
da0436e9
JS		 6033
6034 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
6035 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6036 phba->cfg_fcp_eq_count), GFP_KERNEL);
6037 if (!phba->sli4_hba.fcp_cq) {
6038 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6039 "2577 Failed allocate memory for fast-path "
6040 "CQ record array\n");
4d9ab994 6041 goto out_free_els_cq;
da0436e9
JS		 6042 }
6043 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6044 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6045 phba->sli4_hba.cq_ecount);
6046 if (!qdesc) {
6047 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6048 "0499 Failed allocate fast-path FCP "
6049 "CQ (%d)\n", fcp_cqidx);
6050 goto out_free_fcp_cq;
6051 }
6052 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
6053 }
6054
6055 /* Create Mailbox Command Queue */
6056 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6057 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6058
6059 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
6060 phba->sli4_hba.mq_ecount);
6061 if (!qdesc) {
6062 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6063 "0505 Failed allocate slow-path MQ\n");
6064 goto out_free_fcp_cq;
6065 }
6066 phba->sli4_hba.mbx_wq = qdesc;
6067
6068 /*
6069 * Create all the Work Queues (WQs)
6070 */
6071 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6072 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6073
6074 /* Create slow-path ELS Work Queue */
6075 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6076 phba->sli4_hba.wq_ecount);
6077 if (!qdesc) {
6078 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6079 "0504 Failed allocate slow-path ELS WQ\n");
6080 goto out_free_mbx_wq;
6081 }
6082 phba->sli4_hba.els_wq = qdesc;
6083
6084 /* Create fast-path FCP Work Queue(s) */
6085 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6086 phba->cfg_fcp_wq_count), GFP_KERNEL);
6087 if (!phba->sli4_hba.fcp_wq) {
6088 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6089 "2578 Failed allocate memory for fast-path "
6090 "WQ record array\n");
6091 goto out_free_els_wq;
6092 }
6093 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6094 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6095 phba->sli4_hba.wq_ecount);
6096 if (!qdesc) {
6097 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6098 "0503 Failed allocate fast-path FCP "
6099 "WQ (%d)\n", fcp_wqidx);
6100 goto out_free_fcp_wq;
6101 }
6102 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
6103 }
6104
6105 /*
6106 * Create Receive Queue (RQ)
6107 */
6108 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6109 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6110
6111 /* Create Receive Queue for header */
6112 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6113 phba->sli4_hba.rq_ecount);
6114 if (!qdesc) {
6115 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6116 "0506 Failed allocate receive HRQ\n");
6117 goto out_free_fcp_wq;
6118 }
6119 phba->sli4_hba.hdr_rq = qdesc;
6120
6121 /* Create Receive Queue for data */
6122 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6123 phba->sli4_hba.rq_ecount);
6124 if (!qdesc) {
6125 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6126 "0507 Failed allocate receive DRQ\n");
6127 goto out_free_hdr_rq;
6128 }
6129 phba->sli4_hba.dat_rq = qdesc;
6130
6131 return 0;
6132
6133out_free_hdr_rq:
6134 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6135 phba->sli4_hba.hdr_rq = NULL;
6136out_free_fcp_wq:
6137 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
6138 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
6139 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
6140 }
6141 kfree(phba->sli4_hba.fcp_wq);
6142out_free_els_wq:
6143 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6144 phba->sli4_hba.els_wq = NULL;
6145out_free_mbx_wq:
6146 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6147 phba->sli4_hba.mbx_wq = NULL;
6148out_free_fcp_cq:
6149 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
6150 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
6151 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
6152 }
6153 kfree(phba->sli4_hba.fcp_cq);
da0436e9
JS		 6154out_free_els_cq:
6155 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6156 phba->sli4_hba.els_cq = NULL;
6157out_free_mbx_cq:
6158 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6159 phba->sli4_hba.mbx_cq = NULL;
6160out_free_fp_eq:
6161 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
6162 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
6163 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
6164 }
6165 kfree(phba->sli4_hba.fp_eq);
6166out_free_sp_eq:
6167 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6168 phba->sli4_hba.sp_eq = NULL;
6169out_error:
6170 return -ENOMEM;
6171}
6172
6173/**
6174 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6175 * @phba: pointer to lpfc hba data structure.
6176 *
6177 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6178 * operation.
6179 *
6180 * Return codes
af901ca1 6181 * 0 - successful
d439d286
JS		 6182 * -ENOMEM - No availble memory
6183 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 6184 **/
6185static void
6186lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
6187{
6188 int fcp_qidx;
6189
6190 /* Release mailbox command work queue */
6191 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6192 phba->sli4_hba.mbx_wq = NULL;
6193
6194 /* Release ELS work queue */
6195 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6196 phba->sli4_hba.els_wq = NULL;
6197
6198 /* Release FCP work queue */
6199 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6200 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
6201 kfree(phba->sli4_hba.fcp_wq);
6202 phba->sli4_hba.fcp_wq = NULL;
6203
6204 /* Release unsolicited receive queue */
6205 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6206 phba->sli4_hba.hdr_rq = NULL;
6207 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
6208 phba->sli4_hba.dat_rq = NULL;
6209
da0436e9
JS		 6210 /* Release ELS complete queue */
6211 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6212 phba->sli4_hba.els_cq = NULL;
6213
6214 /* Release mailbox command complete queue */
6215 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6216 phba->sli4_hba.mbx_cq = NULL;
6217
6218 /* Release FCP response complete queue */
6219 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6220 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
6221 kfree(phba->sli4_hba.fcp_cq);
6222 phba->sli4_hba.fcp_cq = NULL;
6223
6224 /* Release fast-path event queue */
6225 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6226 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
6227 kfree(phba->sli4_hba.fp_eq);
6228 phba->sli4_hba.fp_eq = NULL;
6229
6230 /* Release slow-path event queue */
6231 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6232 phba->sli4_hba.sp_eq = NULL;
6233
6234 return;
6235}
6236
6237/**
6238 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
6239 * @phba: pointer to lpfc hba data structure.
6240 *
6241 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
6242 * operation.
6243 *
6244 * Return codes
af901ca1 6245 * 0 - successful
d439d286
JS		 6246 * -ENOMEM - No availble memory
6247 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 6248 **/
6249int
6250lpfc_sli4_queue_setup(struct lpfc_hba *phba)
6251{
6252 int rc = -ENOMEM;
6253 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6254 int fcp_cq_index = 0;
6255
6256 /*
6257 * Set up Event Queues (EQs)
6258 */
6259
6260 /* Set up slow-path event queue */
6261 if (!phba->sli4_hba.sp_eq) {
6262 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6263 "0520 Slow-path EQ not allocated\n");
6264 goto out_error;
6265 }
6266 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
6267 LPFC_SP_DEF_IMAX);
6268 if (rc) {
6269 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6270 "0521 Failed setup of slow-path EQ: "
6271 "rc = 0x%x\n", rc);
6272 goto out_error;
6273 }
6274 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6275 "2583 Slow-path EQ setup: queue-id=%d\n",
6276 phba->sli4_hba.sp_eq->queue_id);
6277
6278 /* Set up fast-path event queue */
6279 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6280 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
6281 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6282 "0522 Fast-path EQ (%d) not "
6283 "allocated\n", fcp_eqidx);
6284 goto out_destroy_fp_eq;
6285 }
6286 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
6287 phba->cfg_fcp_imax);
6288 if (rc) {
6289 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6290 "0523 Failed setup of fast-path EQ "
6291 "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6292 goto out_destroy_fp_eq;
6293 }
6294 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6295 "2584 Fast-path EQ setup: "
6296 "queue[%d]-id=%d\n", fcp_eqidx,
6297 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
6298 }
6299
6300 /*
6301 * Set up Complete Queues (CQs)
6302 */
6303
6304 /* Set up slow-path MBOX Complete Queue as the first CQ */
6305 if (!phba->sli4_hba.mbx_cq) {
6306 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6307 "0528 Mailbox CQ not allocated\n");
6308 goto out_destroy_fp_eq;
6309 }
6310 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
6311 LPFC_MCQ, LPFC_MBOX);
6312 if (rc) {
6313 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6314 "0529 Failed setup of slow-path mailbox CQ: "
6315 "rc = 0x%x\n", rc);
6316 goto out_destroy_fp_eq;
6317 }
6318 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6319 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6320 phba->sli4_hba.mbx_cq->queue_id,
6321 phba->sli4_hba.sp_eq->queue_id);
6322
6323 /* Set up slow-path ELS Complete Queue */
6324 if (!phba->sli4_hba.els_cq) {
6325 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6326 "0530 ELS CQ not allocated\n");
6327 goto out_destroy_mbx_cq;
6328 }
6329 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
6330 LPFC_WCQ, LPFC_ELS);
6331 if (rc) {
6332 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6333 "0531 Failed setup of slow-path ELS CQ: "
6334 "rc = 0x%x\n", rc);
6335 goto out_destroy_mbx_cq;
6336 }
6337 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6338 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6339 phba->sli4_hba.els_cq->queue_id,
6340 phba->sli4_hba.sp_eq->queue_id);
6341
da0436e9
JS		 6342 /* Set up fast-path FCP Response Complete Queue */
6343 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6344 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6345 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6346 "0526 Fast-path FCP CQ (%d) not "
6347 "allocated\n", fcp_cqidx);
6348 goto out_destroy_fcp_cq;
6349 }
6350 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
6351 phba->sli4_hba.fp_eq[fcp_cqidx],
6352 LPFC_WCQ, LPFC_FCP);
6353 if (rc) {
6354 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6355 "0527 Failed setup of fast-path FCP "
6356 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6357 goto out_destroy_fcp_cq;
6358 }
6359 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6360 "2588 FCP CQ setup: cq[%d]-id=%d, "
6361 "parent eq[%d]-id=%d\n",
6362 fcp_cqidx,
6363 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
6364 fcp_cqidx,
6365 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id);
6366 }
6367
6368 /*
6369 * Set up all the Work Queues (WQs)
6370 */
6371
6372 /* Set up Mailbox Command Queue */
6373 if (!phba->sli4_hba.mbx_wq) {
6374 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6375 "0538 Slow-path MQ not allocated\n");
6376 goto out_destroy_fcp_cq;
6377 }
6378 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
6379 phba->sli4_hba.mbx_cq, LPFC_MBOX);
6380 if (rc) {
6381 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6382 "0539 Failed setup of slow-path MQ: "
6383 "rc = 0x%x\n", rc);
6384 goto out_destroy_fcp_cq;
6385 }
6386 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6387 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6388 phba->sli4_hba.mbx_wq->queue_id,
6389 phba->sli4_hba.mbx_cq->queue_id);
6390
6391 /* Set up slow-path ELS Work Queue */
6392 if (!phba->sli4_hba.els_wq) {
6393 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6394 "0536 Slow-path ELS WQ not allocated\n");
6395 goto out_destroy_mbx_wq;
6396 }
6397 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
6398 phba->sli4_hba.els_cq, LPFC_ELS);
6399 if (rc) {
6400 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6401 "0537 Failed setup of slow-path ELS WQ: "
6402 "rc = 0x%x\n", rc);
6403 goto out_destroy_mbx_wq;
6404 }
6405 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6406 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6407 phba->sli4_hba.els_wq->queue_id,
6408 phba->sli4_hba.els_cq->queue_id);
6409
6410 /* Set up fast-path FCP Work Queue */
6411 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6412 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
6413 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6414 "0534 Fast-path FCP WQ (%d) not "
6415 "allocated\n", fcp_wqidx);
6416 goto out_destroy_fcp_wq;
6417 }
6418 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
6419 phba->sli4_hba.fcp_cq[fcp_cq_index],
6420 LPFC_FCP);
6421 if (rc) {
6422 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6423 "0535 Failed setup of fast-path FCP "
6424 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
6425 goto out_destroy_fcp_wq;
6426 }
6427 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6428 "2591 FCP WQ setup: wq[%d]-id=%d, "
6429 "parent cq[%d]-id=%d\n",
6430 fcp_wqidx,
6431 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
6432 fcp_cq_index,
6433 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
6434 /* Round robin FCP Work Queue's Completion Queue assignment */
6435 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count);
6436 }
6437
6438 /*
6439 * Create Receive Queue (RQ)
6440 */
6441 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
6442 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6443 "0540 Receive Queue not allocated\n");
6444 goto out_destroy_fcp_wq;
6445 }
6446 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
4d9ab994 6447 phba->sli4_hba.els_cq, LPFC_USOL);
da0436e9
JS		 6448 if (rc) {
6449 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6450 "0541 Failed setup of Receive Queue: "
6451 "rc = 0x%x\n", rc);
6452 goto out_destroy_fcp_wq;
6453 }
6454 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6455 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6456 "parent cq-id=%d\n",
6457 phba->sli4_hba.hdr_rq->queue_id,
6458 phba->sli4_hba.dat_rq->queue_id,
4d9ab994 6459 phba->sli4_hba.els_cq->queue_id);
da0436e9
JS		 6460 return 0;
6461
6462out_destroy_fcp_wq:
6463 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
6464 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6465 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6466out_destroy_mbx_wq:
6467 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6468out_destroy_fcp_cq:
6469 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
6470 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
da0436e9
JS		 6471 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6472out_destroy_mbx_cq:
6473 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6474out_destroy_fp_eq:
6475 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
6476 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6477 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6478out_error:
6479 return rc;
6480}
6481
6482/**
6483 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6484 * @phba: pointer to lpfc hba data structure.
6485 *
6486 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6487 * operation.
6488 *
6489 * Return codes
af901ca1 6490 * 0 - successful
d439d286
JS		 6491 * -ENOMEM - No availble memory
6492 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 6493 **/
6494void
6495lpfc_sli4_queue_unset(struct lpfc_hba *phba)
6496{
6497 int fcp_qidx;
6498
6499 /* Unset mailbox command work queue */
6500 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6501 /* Unset ELS work queue */
6502 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6503 /* Unset unsolicited receive queue */
6504 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
6505 /* Unset FCP work queue */
6506 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6507 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
6508 /* Unset mailbox command complete queue */
6509 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6510 /* Unset ELS complete queue */
6511 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
da0436e9
JS		 6512 /* Unset FCP response complete queue */
6513 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6514 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
6515 /* Unset fast-path event queue */
6516 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6517 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
6518 /* Unset slow-path event queue */
6519 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6520}
6521
6522/**
6523 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6524 * @phba: pointer to lpfc hba data structure.
6525 *
6526 * This routine is invoked to allocate and set up a pool of completion queue
6527 * events. The body of the completion queue event is a completion queue entry
6528 * CQE. For now, this pool is used for the interrupt service routine to queue
6529 * the following HBA completion queue events for the worker thread to process:
6530 * - Mailbox asynchronous events
6531 * - Receive queue completion unsolicited events
6532 * Later, this can be used for all the slow-path events.
6533 *
6534 * Return codes
af901ca1 6535 * 0 - successful
da0436e9
JS		 6536 * -ENOMEM - No availble memory
6537 **/
6538static int
6539lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
6540{
6541 struct lpfc_cq_event *cq_event;
6542 int i;
6543
6544 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
6545 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
6546 if (!cq_event)
6547 goto out_pool_create_fail;
6548 list_add_tail(&cq_event->list,
6549 &phba->sli4_hba.sp_cqe_event_pool);
6550 }
6551 return 0;
6552
6553out_pool_create_fail:
6554 lpfc_sli4_cq_event_pool_destroy(phba);
6555 return -ENOMEM;
6556}
6557
6558/**
6559 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6560 * @phba: pointer to lpfc hba data structure.
6561 *
6562 * This routine is invoked to free the pool of completion queue events at
6563 * driver unload time. Note that, it is the responsibility of the driver
6564 * cleanup routine to free all the outstanding completion-queue events
6565 * allocated from this pool back into the pool before invoking this routine
6566 * to destroy the pool.
6567 **/
6568static void
6569lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
6570{
6571 struct lpfc_cq_event *cq_event, *next_cq_event;
6572
6573 list_for_each_entry_safe(cq_event, next_cq_event,
6574 &phba->sli4_hba.sp_cqe_event_pool, list) {
6575 list_del(&cq_event->list);
6576 kfree(cq_event);
6577 }
6578}
6579
6580/**
6581 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6582 * @phba: pointer to lpfc hba data structure.
6583 *
6584 * This routine is the lock free version of the API invoked to allocate a
6585 * completion-queue event from the free pool.
6586 *
6587 * Return: Pointer to the newly allocated completion-queue event if successful
6588 * NULL otherwise.
6589 **/
6590struct lpfc_cq_event *
6591__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6592{
6593 struct lpfc_cq_event *cq_event = NULL;
6594
6595 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
6596 struct lpfc_cq_event, list);
6597 return cq_event;
6598}
6599
6600/**
6601 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6602 * @phba: pointer to lpfc hba data structure.
6603 *
6604 * This routine is the lock version of the API invoked to allocate a
6605 * completion-queue event from the free pool.
6606 *
6607 * Return: Pointer to the newly allocated completion-queue event if successful
6608 * NULL otherwise.
6609 **/
6610struct lpfc_cq_event *
6611lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6612{
6613 struct lpfc_cq_event *cq_event;
6614 unsigned long iflags;
6615
6616 spin_lock_irqsave(&phba->hbalock, iflags);
6617 cq_event = __lpfc_sli4_cq_event_alloc(phba);
6618 spin_unlock_irqrestore(&phba->hbalock, iflags);
6619 return cq_event;
6620}
6621
6622/**
6623 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6624 * @phba: pointer to lpfc hba data structure.
6625 * @cq_event: pointer to the completion queue event to be freed.
6626 *
6627 * This routine is the lock free version of the API invoked to release a
6628 * completion-queue event back into the free pool.
6629 **/
6630void
6631__lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6632 struct lpfc_cq_event *cq_event)
6633{
6634 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
6635}
6636
6637/**
6638 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6639 * @phba: pointer to lpfc hba data structure.
6640 * @cq_event: pointer to the completion queue event to be freed.
6641 *
6642 * This routine is the lock version of the API invoked to release a
6643 * completion-queue event back into the free pool.
6644 **/
6645void
6646lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6647 struct lpfc_cq_event *cq_event)
6648{
6649 unsigned long iflags;
6650 spin_lock_irqsave(&phba->hbalock, iflags);
6651 __lpfc_sli4_cq_event_release(phba, cq_event);
6652 spin_unlock_irqrestore(&phba->hbalock, iflags);
6653}
6654
6655/**
6656 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6657 * @phba: pointer to lpfc hba data structure.
6658 *
6659 * This routine is to free all the pending completion-queue events to the
6660 * back into the free pool for device reset.
6661 **/
6662static void
6663lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
6664{
6665 LIST_HEAD(cqelist);
6666 struct lpfc_cq_event *cqe;
6667 unsigned long iflags;
6668
6669 /* Retrieve all the pending WCQEs from pending WCQE lists */
6670 spin_lock_irqsave(&phba->hbalock, iflags);
6671 /* Pending FCP XRI abort events */
6672 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
6673 &cqelist);
6674 /* Pending ELS XRI abort events */
6675 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
6676 &cqelist);
6677 /* Pending asynnc events */
6678 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
6679 &cqelist);
6680 spin_unlock_irqrestore(&phba->hbalock, iflags);
6681
6682 while (!list_empty(&cqelist)) {
6683 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
6684 lpfc_sli4_cq_event_release(phba, cqe);
6685 }
6686}
6687
6688/**
6689 * lpfc_pci_function_reset - Reset pci function.
6690 * @phba: pointer to lpfc hba data structure.
6691 *
6692 * This routine is invoked to request a PCI function reset. It will destroys
6693 * all resources assigned to the PCI function which originates this request.
6694 *
6695 * Return codes
af901ca1 6696 * 0 - successful
d439d286
JS		 6697 * -ENOMEM - No availble memory
6698 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 6699 **/
6700int
6701lpfc_pci_function_reset(struct lpfc_hba *phba)
6702{
6703 LPFC_MBOXQ_t *mboxq;
2fcee4bf 6704 uint32_t rc = 0, if_type;
da0436e9 6705 uint32_t shdr_status, shdr_add_status;
2fcee4bf 6706 uint32_t rdy_chk, num_resets = 0, reset_again = 0;
da0436e9 6707 union lpfc_sli4_cfg_shdr *shdr;
2fcee4bf 6708 struct lpfc_register reg_data;
da0436e9 6709
2fcee4bf
JS		 6710 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6711 switch (if_type) {
6712 case LPFC_SLI_INTF_IF_TYPE_0:
6713 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6714 GFP_KERNEL);
6715 if (!mboxq) {
6716 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6717 "0494 Unable to allocate memory for "
6718 "issuing SLI_FUNCTION_RESET mailbox "
6719 "command\n");
6720 return -ENOMEM;
6721 }
da0436e9 6722
2fcee4bf
JS		 6723 /* Setup PCI function reset mailbox-ioctl command */
6724 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6725 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
6726 LPFC_SLI4_MBX_EMBED);
6727 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6728 shdr = (union lpfc_sli4_cfg_shdr *)
6729 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6730 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6731 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
6732 &shdr->response);
6733 if (rc != MBX_TIMEOUT)
6734 mempool_free(mboxq, phba->mbox_mem_pool);
6735 if (shdr_status || shdr_add_status || rc) {
6736 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6737 "0495 SLI_FUNCTION_RESET mailbox "
6738 "failed with status x%x add_status x%x,"
6739 " mbx status x%x\n",
6740 shdr_status, shdr_add_status, rc);
6741 rc = -ENXIO;
6742 }
6743 break;
6744 case LPFC_SLI_INTF_IF_TYPE_2:
6745 for (num_resets = 0;
6746 num_resets < MAX_IF_TYPE_2_RESETS;
6747 num_resets++) {
6748 reg_data.word0 = 0;
6749 bf_set(lpfc_sliport_ctrl_end, &reg_data,
6750 LPFC_SLIPORT_LITTLE_ENDIAN);
6751 bf_set(lpfc_sliport_ctrl_ip, &reg_data,
6752 LPFC_SLIPORT_INIT_PORT);
6753 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
6754 CTRLregaddr);
6755
6756 /*
6757 * Poll the Port Status Register and wait for RDY for
6758 * up to 10 seconds. If the port doesn't respond, treat
6759 * it as an error. If the port responds with RN, start
6760 * the loop again.
6761 */
6762 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
6763 reg_data.word0 =
6764 readl(phba->sli4_hba.u.if_type2.
6765 STATUSregaddr);
6766 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
6767 break;
6768 if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
6769 reset_again++;
6770 break;
6771 }
6772 msleep(10);
6773 }
6774
6775 /*
6776 * If the port responds to the init request with
6777 * reset needed, delay for a bit and restart the loop.
6778 */
6779 if (reset_again) {
6780 msleep(10);
6781 reset_again = 0;
6782 continue;
6783 }
6784
6785 /* Detect any port errors. */
6786 reg_data.word0 = readl(phba->sli4_hba.u.if_type2.
6787 STATUSregaddr);
6788 if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
6789 (rdy_chk >= 1000)) {
6790 phba->work_status[0] = readl(
6791 phba->sli4_hba.u.if_type2.ERR1regaddr);
6792 phba->work_status[1] = readl(
6793 phba->sli4_hba.u.if_type2.ERR2regaddr);
6794 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6795 "2890 Port Error Detected "
6796 "during Port Reset: "
6797 "port status reg 0x%x, "
6798 "error 1=0x%x, error 2=0x%x\n",
6799 reg_data.word0,
6800 phba->work_status[0],
6801 phba->work_status[1]);
6802 rc = -ENODEV;
6803 }
6804
6805 /*
6806 * Terminate the outer loop provided the Port indicated
6807 * ready within 10 seconds.
6808 */
6809 if (rdy_chk < 1000)
6810 break;
6811 }
6812 break;
6813 case LPFC_SLI_INTF_IF_TYPE_1:
6814 default:
6815 break;
da0436e9 6816 }
2fcee4bf
JS		 6817
6818 /* Catch the not-ready port failure after a port reset. */
6819 if (num_resets >= MAX_IF_TYPE_2_RESETS)
6820 rc = -ENODEV;
6821
da0436e9
JS		 6822 return rc;
6823}
6824
6825/**
6826 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
6827 * @phba: pointer to lpfc hba data structure.
6828 * @cnt: number of nop mailbox commands to send.
6829 *
6830 * This routine is invoked to send a number @cnt of NOP mailbox command and
6831 * wait for each command to complete.
6832 *
6833 * Return: the number of NOP mailbox command completed.
6834 **/
6835static int
6836lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
6837{
6838 LPFC_MBOXQ_t *mboxq;
6839 int length, cmdsent;
6840 uint32_t mbox_tmo;
6841 uint32_t rc = 0;
6842 uint32_t shdr_status, shdr_add_status;
6843 union lpfc_sli4_cfg_shdr *shdr;
6844
6845 if (cnt == 0) {
6846 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6847 "2518 Requested to send 0 NOP mailbox cmd\n");
6848 return cnt;
6849 }
6850
6851 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6852 if (!mboxq) {
6853 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6854 "2519 Unable to allocate memory for issuing "
6855 "NOP mailbox command\n");
6856 return 0;
6857 }
6858
6859 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
6860 length = (sizeof(struct lpfc_mbx_nop) -
6861 sizeof(struct lpfc_sli4_cfg_mhdr));
6862 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6863 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
6864
6865 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
6866 for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
6867 if (!phba->sli4_hba.intr_enable)
6868 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6869 else
6870 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
6871 if (rc == MBX_TIMEOUT)
6872 break;
6873 /* Check return status */
6874 shdr = (union lpfc_sli4_cfg_shdr *)
6875 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6876 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6877 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
6878 &shdr->response);
6879 if (shdr_status || shdr_add_status || rc) {
6880 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6881 "2520 NOP mailbox command failed "
6882 "status x%x add_status x%x mbx "
6883 "status x%x\n", shdr_status,
6884 shdr_add_status, rc);
6885 break;
6886 }
6887 }
6888
6889 if (rc != MBX_TIMEOUT)
6890 mempool_free(mboxq, phba->mbox_mem_pool);
6891
6892 return cmdsent;
6893}
6894
da0436e9
JS		 6895/**
6896 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
6897 * @phba: pointer to lpfc hba data structure.
6898 *
6899 * This routine is invoked to set up the PCI device memory space for device
6900 * with SLI-4 interface spec.
6901 *
6902 * Return codes
af901ca1 6903 * 0 - successful
da0436e9
JS		 6904 * other values - error
6905 **/
6906static int
6907lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
6908{
6909 struct pci_dev *pdev;
6910 unsigned long bar0map_len, bar1map_len, bar2map_len;
6911 int error = -ENODEV;
2fcee4bf 6912 uint32_t if_type;
da0436e9
JS		 6913
6914 /* Obtain PCI device reference */
6915 if (!phba->pcidev)
6916 return error;
6917 else
6918 pdev = phba->pcidev;
6919
6920 /* Set the device DMA mask size */
8e68597d
MR		 6921 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6922 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6923 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6924 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
da0436e9 6925 return error;
8e68597d
MR		 6926 }
6927 }
da0436e9 6928
2fcee4bf
JS		 6929 /*
6930 * The BARs and register set definitions and offset locations are
6931 * dependent on the if_type.
6932 */
6933 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
6934 &phba->sli4_hba.sli_intf.word0)) {
6935 return error;
6936 }
6937
6938 /* There is no SLI3 failback for SLI4 devices. */
6939 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
6940 LPFC_SLI_INTF_VALID) {
6941 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6942 "2894 SLI_INTF reg contents invalid "
6943 "sli_intf reg 0x%x\n",
6944 phba->sli4_hba.sli_intf.word0);
6945 return error;
6946 }
6947
6948 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6949 /*
6950 * Get the bus address of SLI4 device Bar regions and the
6951 * number of bytes required by each mapping. The mapping of the
6952 * particular PCI BARs regions is dependent on the type of
6953 * SLI4 device.
da0436e9 6954 */
1dfb5a47
JS		 6955 if (pci_resource_start(pdev, 0)) {
6956 phba->pci_bar0_map = pci_resource_start(pdev, 0);
6957 bar0map_len = pci_resource_len(pdev, 0);
2fcee4bf
JS		 6958
6959 /*
6960 * Map SLI4 PCI Config Space Register base to a kernel virtual
6961 * addr
6962 */
6963 phba->sli4_hba.conf_regs_memmap_p =
6964 ioremap(phba->pci_bar0_map, bar0map_len);
6965 if (!phba->sli4_hba.conf_regs_memmap_p) {
6966 dev_printk(KERN_ERR, &pdev->dev,
6967 "ioremap failed for SLI4 PCI config "
6968 "registers.\n");
6969 goto out;
6970 }
6971 /* Set up BAR0 PCI config space register memory map */
6972 lpfc_sli4_bar0_register_memmap(phba, if_type);
1dfb5a47
JS		 6973 } else {
6974 phba->pci_bar0_map = pci_resource_start(pdev, 1);
6975 bar0map_len = pci_resource_len(pdev, 1);
2fcee4bf
JS		 6976 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
6977 dev_printk(KERN_ERR, &pdev->dev,
6978 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
6979 goto out;
6980 }
6981 phba->sli4_hba.conf_regs_memmap_p =
da0436e9 6982 ioremap(phba->pci_bar0_map, bar0map_len);
2fcee4bf
JS		 6983 if (!phba->sli4_hba.conf_regs_memmap_p) {
6984 dev_printk(KERN_ERR, &pdev->dev,
6985 "ioremap failed for SLI4 PCI config "
6986 "registers.\n");
6987 goto out;
6988 }
6989 lpfc_sli4_bar0_register_memmap(phba, if_type);
da0436e9
JS		 6990 }
6991
2fcee4bf
JS		 6992 if (pci_resource_start(pdev, 2)) {
6993 /*
6994 * Map SLI4 if type 0 HBA Control Register base to a kernel
6995 * virtual address and setup the registers.
6996 */
6997 phba->pci_bar1_map = pci_resource_start(pdev, 2);
6998 bar1map_len = pci_resource_len(pdev, 2);
6999 phba->sli4_hba.ctrl_regs_memmap_p =
da0436e9 7000 ioremap(phba->pci_bar1_map, bar1map_len);
2fcee4bf
JS		 7001 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7002 dev_printk(KERN_ERR, &pdev->dev,
da0436e9 7003 "ioremap failed for SLI4 HBA control registers.\n");
2fcee4bf
JS		 7004 goto out_iounmap_conf;
7005 }
7006 lpfc_sli4_bar1_register_memmap(phba);
da0436e9
JS		 7007 }
7008
2fcee4bf
JS		 7009 if (pci_resource_start(pdev, 4)) {
7010 /*
7011 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7012 * virtual address and setup the registers.
7013 */
7014 phba->pci_bar2_map = pci_resource_start(pdev, 4);
7015 bar2map_len = pci_resource_len(pdev, 4);
7016 phba->sli4_hba.drbl_regs_memmap_p =
da0436e9 7017 ioremap(phba->pci_bar2_map, bar2map_len);
2fcee4bf
JS		 7018 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7019 dev_printk(KERN_ERR, &pdev->dev,
da0436e9 7020 "ioremap failed for SLI4 HBA doorbell registers.\n");
2fcee4bf
JS		 7021 goto out_iounmap_ctrl;
7022 }
7023 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7024 if (error)
7025 goto out_iounmap_all;
da0436e9
JS		 7026 }
7027
da0436e9
JS		 7028 return 0;
7029
7030out_iounmap_all:
7031 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7032out_iounmap_ctrl:
7033 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7034out_iounmap_conf:
7035 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7036out:
7037 return error;
7038}
7039
7040/**
7041 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7042 * @phba: pointer to lpfc hba data structure.
7043 *
7044 * This routine is invoked to unset the PCI device memory space for device
7045 * with SLI-4 interface spec.
7046 **/
7047static void
7048lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
7049{
7050 struct pci_dev *pdev;
7051
7052 /* Obtain PCI device reference */
7053 if (!phba->pcidev)
7054 return;
7055 else
7056 pdev = phba->pcidev;
7057
7058 /* Free coherent DMA memory allocated */
7059
7060 /* Unmap I/O memory space */
7061 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7062 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7063 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7064
7065 return;
7066}
7067
7068/**
7069 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7070 * @phba: pointer to lpfc hba data structure.
7071 *
7072 * This routine is invoked to enable the MSI-X interrupt vectors to device
7073 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7074 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7075 * invoked, enables either all or nothing, depending on the current
7076 * availability of PCI vector resources. The device driver is responsible
7077 * for calling the individual request_irq() to register each MSI-X vector
7078 * with a interrupt handler, which is done in this function. Note that
7079 * later when device is unloading, the driver should always call free_irq()
7080 * on all MSI-X vectors it has done request_irq() on before calling
7081 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7082 * will be left with MSI-X enabled and leaks its vectors.
7083 *
7084 * Return codes
af901ca1 7085 * 0 - successful
da0436e9
JS		 7086 * other values - error
7087 **/
7088static int
7089lpfc_sli_enable_msix(struct lpfc_hba *phba)
7090{
7091 int rc, i;
7092 LPFC_MBOXQ_t *pmb;
7093
7094 /* Set up MSI-X multi-message vectors */
7095 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7096 phba->msix_entries[i].entry = i;
7097
7098 /* Configure MSI-X capability structure */
7099 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
7100 ARRAY_SIZE(phba->msix_entries));
7101 if (rc) {
7102 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7103 "0420 PCI enable MSI-X failed (%d)\n", rc);
7104 goto msi_fail_out;
7105 }
7106 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7107 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7108 "0477 MSI-X entry[%d]: vector=x%x "
7109 "message=%d\n", i,
7110 phba->msix_entries[i].vector,
7111 phba->msix_entries[i].entry);
7112 /*
7113 * Assign MSI-X vectors to interrupt handlers
7114 */
7115
7116 /* vector-0 is associated to slow-path handler */
7117 rc = request_irq(phba->msix_entries[0].vector,
7118 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
7119 LPFC_SP_DRIVER_HANDLER_NAME, phba);
7120 if (rc) {
7121 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7122 "0421 MSI-X slow-path request_irq failed "
7123 "(%d)\n", rc);
7124 goto msi_fail_out;
7125 }
7126
7127 /* vector-1 is associated to fast-path handler */
7128 rc = request_irq(phba->msix_entries[1].vector,
7129 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
7130 LPFC_FP_DRIVER_HANDLER_NAME, phba);
7131
7132 if (rc) {
7133 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7134 "0429 MSI-X fast-path request_irq failed "
7135 "(%d)\n", rc);
7136 goto irq_fail_out;
7137 }
7138
7139 /*
7140 * Configure HBA MSI-X attention conditions to messages
7141 */
7142 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7143
7144 if (!pmb) {
7145 rc = -ENOMEM;
7146 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7147 "0474 Unable to allocate memory for issuing "
7148 "MBOX_CONFIG_MSI command\n");
7149 goto mem_fail_out;
7150 }
7151 rc = lpfc_config_msi(phba, pmb);
7152 if (rc)
7153 goto mbx_fail_out;
7154 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7155 if (rc != MBX_SUCCESS) {
7156 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
7157 "0351 Config MSI mailbox command failed, "
7158 "mbxCmd x%x, mbxStatus x%x\n",
7159 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
7160 goto mbx_fail_out;
7161 }
7162
7163 /* Free memory allocated for mailbox command */
7164 mempool_free(pmb, phba->mbox_mem_pool);
7165 return rc;
7166
7167mbx_fail_out:
7168 /* Free memory allocated for mailbox command */
7169 mempool_free(pmb, phba->mbox_mem_pool);
7170
7171mem_fail_out:
7172 /* free the irq already requested */
7173 free_irq(phba->msix_entries[1].vector, phba);
7174
7175irq_fail_out:
7176 /* free the irq already requested */
7177 free_irq(phba->msix_entries[0].vector, phba);
7178
7179msi_fail_out:
7180 /* Unconfigure MSI-X capability structure */
7181 pci_disable_msix(phba->pcidev);
7182 return rc;
7183}
7184
7185/**
7186 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
7187 * @phba: pointer to lpfc hba data structure.
7188 *
7189 * This routine is invoked to release the MSI-X vectors and then disable the
7190 * MSI-X interrupt mode to device with SLI-3 interface spec.
7191 **/
7192static void
7193lpfc_sli_disable_msix(struct lpfc_hba *phba)
7194{
7195 int i;
7196
7197 /* Free up MSI-X multi-message vectors */
7198 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7199 free_irq(phba->msix_entries[i].vector, phba);
7200 /* Disable MSI-X */
7201 pci_disable_msix(phba->pcidev);
7202
7203 return;
7204}
7205
7206/**
7207 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
7208 * @phba: pointer to lpfc hba data structure.
7209 *
7210 * This routine is invoked to enable the MSI interrupt mode to device with
7211 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
7212 * enable the MSI vector. The device driver is responsible for calling the
7213 * request_irq() to register MSI vector with a interrupt the handler, which
7214 * is done in this function.
7215 *
7216 * Return codes
af901ca1 7217 * 0 - successful
da0436e9
JS		 7218 * other values - error
7219 */
7220static int
7221lpfc_sli_enable_msi(struct lpfc_hba *phba)
7222{
7223 int rc;
7224
7225 rc = pci_enable_msi(phba->pcidev);
7226 if (!rc)
7227 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7228 "0462 PCI enable MSI mode success.\n");
7229 else {
7230 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7231 "0471 PCI enable MSI mode failed (%d)\n", rc);
7232 return rc;
7233 }
7234
7235 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7236 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7237 if (rc) {
7238 pci_disable_msi(phba->pcidev);
7239 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7240 "0478 MSI request_irq failed (%d)\n", rc);
7241 }
7242 return rc;
7243}
7244
7245/**
7246 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
7247 * @phba: pointer to lpfc hba data structure.
7248 *
7249 * This routine is invoked to disable the MSI interrupt mode to device with
7250 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
7251 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7252 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7253 * its vector.
7254 */
7255static void
7256lpfc_sli_disable_msi(struct lpfc_hba *phba)
7257{
7258 free_irq(phba->pcidev->irq, phba);
7259 pci_disable_msi(phba->pcidev);
7260 return;
7261}
7262
7263/**
7264 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
7265 * @phba: pointer to lpfc hba data structure.
7266 *
7267 * This routine is invoked to enable device interrupt and associate driver's
7268 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
7269 * spec. Depends on the interrupt mode configured to the driver, the driver
7270 * will try to fallback from the configured interrupt mode to an interrupt
7271 * mode which is supported by the platform, kernel, and device in the order
7272 * of:
7273 * MSI-X -> MSI -> IRQ.
7274 *
7275 * Return codes
af901ca1 7276 * 0 - successful
da0436e9
JS		 7277 * other values - error
7278 **/
7279static uint32_t
7280lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7281{
7282 uint32_t intr_mode = LPFC_INTR_ERROR;
7283 int retval;
7284
7285 if (cfg_mode == 2) {
7286 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
7287 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
7288 if (!retval) {
7289 /* Now, try to enable MSI-X interrupt mode */
7290 retval = lpfc_sli_enable_msix(phba);
7291 if (!retval) {
7292 /* Indicate initialization to MSI-X mode */
7293 phba->intr_type = MSIX;
7294 intr_mode = 2;
7295 }
7296 }
7297 }
7298
7299 /* Fallback to MSI if MSI-X initialization failed */
7300 if (cfg_mode >= 1 && phba->intr_type == NONE) {
7301 retval = lpfc_sli_enable_msi(phba);
7302 if (!retval) {
7303 /* Indicate initialization to MSI mode */
7304 phba->intr_type = MSI;
7305 intr_mode = 1;
7306 }
7307 }
7308
7309 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7310 if (phba->intr_type == NONE) {
7311 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7312 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7313 if (!retval) {
7314 /* Indicate initialization to INTx mode */
7315 phba->intr_type = INTx;
7316 intr_mode = 0;
7317 }
7318 }
7319 return intr_mode;
7320}
7321
7322/**
7323 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
7324 * @phba: pointer to lpfc hba data structure.
7325 *
7326 * This routine is invoked to disable device interrupt and disassociate the
7327 * driver's interrupt handler(s) from interrupt vector(s) to device with
7328 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
7329 * release the interrupt vector(s) for the message signaled interrupt.
7330 **/
7331static void
7332lpfc_sli_disable_intr(struct lpfc_hba *phba)
7333{
7334 /* Disable the currently initialized interrupt mode */
7335 if (phba->intr_type == MSIX)
7336 lpfc_sli_disable_msix(phba);
7337 else if (phba->intr_type == MSI)
7338 lpfc_sli_disable_msi(phba);
7339 else if (phba->intr_type == INTx)
7340 free_irq(phba->pcidev->irq, phba);
7341
7342 /* Reset interrupt management states */
7343 phba->intr_type = NONE;
7344 phba->sli.slistat.sli_intr = 0;
7345
7346 return;
7347}
7348
7349/**
7350 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
7351 * @phba: pointer to lpfc hba data structure.
7352 *
7353 * This routine is invoked to enable the MSI-X interrupt vectors to device
7354 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
7355 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
7356 * enables either all or nothing, depending on the current availability of
7357 * PCI vector resources. The device driver is responsible for calling the
7358 * individual request_irq() to register each MSI-X vector with a interrupt
7359 * handler, which is done in this function. Note that later when device is
7360 * unloading, the driver should always call free_irq() on all MSI-X vectors
7361 * it has done request_irq() on before calling pci_disable_msix(). Failure
7362 * to do so results in a BUG_ON() and a device will be left with MSI-X
7363 * enabled and leaks its vectors.
7364 *
7365 * Return codes
af901ca1 7366 * 0 - successful
da0436e9
JS		 7367 * other values - error
7368 **/
7369static int
7370lpfc_sli4_enable_msix(struct lpfc_hba *phba)
7371{
75baf696 7372 int vectors, rc, index;
da0436e9
JS		 7373
7374 /* Set up MSI-X multi-message vectors */
7375 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
7376 phba->sli4_hba.msix_entries[index].entry = index;
7377
7378 /* Configure MSI-X capability structure */
75baf696
JS		 7379 vectors = phba->sli4_hba.cfg_eqn;
7380enable_msix_vectors:
da0436e9 7381 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
75baf696
JS		 7382 vectors);
7383 if (rc > 1) {
7384 vectors = rc;
7385 goto enable_msix_vectors;
7386 } else if (rc) {
da0436e9
JS		 7387 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7388 "0484 PCI enable MSI-X failed (%d)\n", rc);
7389 goto msi_fail_out;
7390 }
75baf696 7391
da0436e9 7392 /* Log MSI-X vector assignment */
75baf696 7393 for (index = 0; index < vectors; index++)
da0436e9
JS		 7394 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7395 "0489 MSI-X entry[%d]: vector=x%x "
7396 "message=%d\n", index,
7397 phba->sli4_hba.msix_entries[index].vector,
7398 phba->sli4_hba.msix_entries[index].entry);
7399 /*
7400 * Assign MSI-X vectors to interrupt handlers
7401 */
7402
7403 /* The first vector must associated to slow-path handler for MQ */
7404 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7405 &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
7406 LPFC_SP_DRIVER_HANDLER_NAME, phba);
7407 if (rc) {
7408 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7409 "0485 MSI-X slow-path request_irq failed "
7410 "(%d)\n", rc);
7411 goto msi_fail_out;
7412 }
7413
7414 /* The rest of the vector(s) are associated to fast-path handler(s) */
75baf696 7415 for (index = 1; index < vectors; index++) {
da0436e9
JS		 7416 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
7417 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
7418 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
7419 &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
7420 LPFC_FP_DRIVER_HANDLER_NAME,
7421 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7422 if (rc) {
7423 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7424 "0486 MSI-X fast-path (%d) "
7425 "request_irq failed (%d)\n", index, rc);
7426 goto cfg_fail_out;
7427 }
7428 }
75baf696 7429 phba->sli4_hba.msix_vec_nr = vectors;
da0436e9
JS		 7430
7431 return rc;
7432
7433cfg_fail_out:
7434 /* free the irq already requested */
7435 for (--index; index >= 1; index--)
7436 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
7437 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7438
7439 /* free the irq already requested */
7440 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7441
7442msi_fail_out:
7443 /* Unconfigure MSI-X capability structure */
7444 pci_disable_msix(phba->pcidev);
7445 return rc;
7446}
7447
7448/**
7449 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7450 * @phba: pointer to lpfc hba data structure.
7451 *
7452 * This routine is invoked to release the MSI-X vectors and then disable the
7453 * MSI-X interrupt mode to device with SLI-4 interface spec.
7454 **/
7455static void
7456lpfc_sli4_disable_msix(struct lpfc_hba *phba)
7457{
7458 int index;
7459
7460 /* Free up MSI-X multi-message vectors */
7461 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7462
75baf696 7463 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
da0436e9
JS		 7464 free_irq(phba->sli4_hba.msix_entries[index].vector,
7465 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
75baf696 7466
da0436e9
JS		 7467 /* Disable MSI-X */
7468 pci_disable_msix(phba->pcidev);
7469
7470 return;
7471}
7472
7473/**
7474 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7475 * @phba: pointer to lpfc hba data structure.
7476 *
7477 * This routine is invoked to enable the MSI interrupt mode to device with
7478 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7479 * to enable the MSI vector. The device driver is responsible for calling
7480 * the request_irq() to register MSI vector with a interrupt the handler,
7481 * which is done in this function.
7482 *
7483 * Return codes
af901ca1 7484 * 0 - successful
da0436e9
JS		 7485 * other values - error
7486 **/
7487static int
7488lpfc_sli4_enable_msi(struct lpfc_hba *phba)
7489{
7490 int rc, index;
7491
7492 rc = pci_enable_msi(phba->pcidev);
7493 if (!rc)
7494 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7495 "0487 PCI enable MSI mode success.\n");
7496 else {
7497 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7498 "0488 PCI enable MSI mode failed (%d)\n", rc);
7499 return rc;
7500 }
7501
7502 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7503 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7504 if (rc) {
7505 pci_disable_msi(phba->pcidev);
7506 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7507 "0490 MSI request_irq failed (%d)\n", rc);
75baf696 7508 return rc;
da0436e9
JS		 7509 }
7510
7511 for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
7512 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7513 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7514 }
7515
75baf696 7516 return 0;
da0436e9
JS		 7517}
7518
7519/**
7520 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7521 * @phba: pointer to lpfc hba data structure.
7522 *
7523 * This routine is invoked to disable the MSI interrupt mode to device with
7524 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7525 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7526 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7527 * its vector.
7528 **/
7529static void
7530lpfc_sli4_disable_msi(struct lpfc_hba *phba)
7531{
7532 free_irq(phba->pcidev->irq, phba);
7533 pci_disable_msi(phba->pcidev);
7534 return;
7535}
7536
7537/**
7538 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7539 * @phba: pointer to lpfc hba data structure.
7540 *
7541 * This routine is invoked to enable device interrupt and associate driver's
7542 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7543 * interface spec. Depends on the interrupt mode configured to the driver,
7544 * the driver will try to fallback from the configured interrupt mode to an
7545 * interrupt mode which is supported by the platform, kernel, and device in
7546 * the order of:
7547 * MSI-X -> MSI -> IRQ.
7548 *
7549 * Return codes
af901ca1 7550 * 0 - successful
da0436e9
JS		 7551 * other values - error
7552 **/
7553static uint32_t
7554lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7555{
7556 uint32_t intr_mode = LPFC_INTR_ERROR;
7557 int retval, index;
7558
7559 if (cfg_mode == 2) {
7560 /* Preparation before conf_msi mbox cmd */
7561 retval = 0;
7562 if (!retval) {
7563 /* Now, try to enable MSI-X interrupt mode */
7564 retval = lpfc_sli4_enable_msix(phba);
7565 if (!retval) {
7566 /* Indicate initialization to MSI-X mode */
7567 phba->intr_type = MSIX;
7568 intr_mode = 2;
7569 }
7570 }
7571 }
7572
7573 /* Fallback to MSI if MSI-X initialization failed */
7574 if (cfg_mode >= 1 && phba->intr_type == NONE) {
7575 retval = lpfc_sli4_enable_msi(phba);
7576 if (!retval) {
7577 /* Indicate initialization to MSI mode */
7578 phba->intr_type = MSI;
7579 intr_mode = 1;
7580 }
7581 }
7582
7583 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7584 if (phba->intr_type == NONE) {
7585 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7586 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7587 if (!retval) {
7588 /* Indicate initialization to INTx mode */
7589 phba->intr_type = INTx;
7590 intr_mode = 0;
7591 for (index = 0; index < phba->cfg_fcp_eq_count;
7592 index++) {
7593 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7594 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7595 }
7596 }
7597 }
7598 return intr_mode;
7599}
7600
7601/**
7602 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7603 * @phba: pointer to lpfc hba data structure.
7604 *
7605 * This routine is invoked to disable device interrupt and disassociate
7606 * the driver's interrupt handler(s) from interrupt vector(s) to device
7607 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7608 * will release the interrupt vector(s) for the message signaled interrupt.
7609 **/
7610static void
7611lpfc_sli4_disable_intr(struct lpfc_hba *phba)
7612{
7613 /* Disable the currently initialized interrupt mode */
7614 if (phba->intr_type == MSIX)
7615 lpfc_sli4_disable_msix(phba);
7616 else if (phba->intr_type == MSI)
7617 lpfc_sli4_disable_msi(phba);
7618 else if (phba->intr_type == INTx)
7619 free_irq(phba->pcidev->irq, phba);
7620
7621 /* Reset interrupt management states */
7622 phba->intr_type = NONE;
7623 phba->sli.slistat.sli_intr = 0;
7624
7625 return;
7626}
7627
7628/**
7629 * lpfc_unset_hba - Unset SLI3 hba device initialization
7630 * @phba: pointer to lpfc hba data structure.
7631 *
7632 * This routine is invoked to unset the HBA device initialization steps to
7633 * a device with SLI-3 interface spec.
7634 **/
7635static void
7636lpfc_unset_hba(struct lpfc_hba *phba)
7637{
7638 struct lpfc_vport *vport = phba->pport;
7639 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7640
7641 spin_lock_irq(shost->host_lock);
7642 vport->load_flag |= FC_UNLOADING;
7643 spin_unlock_irq(shost->host_lock);
7644
7645 lpfc_stop_hba_timers(phba);
7646
7647 phba->pport->work_port_events = 0;
7648
7649 lpfc_sli_hba_down(phba);
7650
7651 lpfc_sli_brdrestart(phba);
7652
7653 lpfc_sli_disable_intr(phba);
7654
7655 return;
7656}
7657
7658/**
7659 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7660 * @phba: pointer to lpfc hba data structure.
7661 *
7662 * This routine is invoked to unset the HBA device initialization steps to
7663 * a device with SLI-4 interface spec.
7664 **/
7665static void
7666lpfc_sli4_unset_hba(struct lpfc_hba *phba)
7667{
7668 struct lpfc_vport *vport = phba->pport;
7669 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7670
7671 spin_lock_irq(shost->host_lock);
7672 vport->load_flag |= FC_UNLOADING;
7673 spin_unlock_irq(shost->host_lock);
7674
7675 phba->pport->work_port_events = 0;
7676
3677a3a7
JS		 7677 /* Stop the SLI4 device port */
7678 lpfc_stop_port(phba);
da0436e9
JS		 7679
7680 lpfc_sli4_disable_intr(phba);
7681
3677a3a7
JS		 7682 /* Reset SLI4 HBA FCoE function */
7683 lpfc_pci_function_reset(phba);
7684
da0436e9
JS		 7685 return;
7686}
7687
5af5eee7
JS		 7688/**
7689 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
7690 * @phba: Pointer to HBA context object.
7691 *
7692 * This function is called in the SLI4 code path to wait for completion
7693 * of device's XRIs exchange busy. It will check the XRI exchange busy
7694 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
7695 * that, it will check the XRI exchange busy on outstanding FCP and ELS
7696 * I/Os every 30 seconds, log error message, and wait forever. Only when
7697 * all XRI exchange busy complete, the driver unload shall proceed with
7698 * invoking the function reset ioctl mailbox command to the CNA and the
7699 * the rest of the driver unload resource release.
7700 **/
7701static void
7702lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
7703{
7704 int wait_time = 0;
7705 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
7706 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7707
7708 while (!fcp_xri_cmpl || !els_xri_cmpl) {
7709 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
7710 if (!fcp_xri_cmpl)
7711 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7712 "2877 FCP XRI exchange busy "
7713 "wait time: %d seconds.\n",
7714 wait_time/1000);
7715 if (!els_xri_cmpl)
7716 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7717 "2878 ELS XRI exchange busy "
7718 "wait time: %d seconds.\n",
7719 wait_time/1000);
7720 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
7721 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
7722 } else {
7723 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
7724 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
7725 }
7726 fcp_xri_cmpl =
7727 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
7728 els_xri_cmpl =
7729 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7730 }
7731}
7732
da0436e9
JS		 7733/**
7734 * lpfc_sli4_hba_unset - Unset the fcoe hba
7735 * @phba: Pointer to HBA context object.
7736 *
7737 * This function is called in the SLI4 code path to reset the HBA's FCoE
7738 * function. The caller is not required to hold any lock. This routine
7739 * issues PCI function reset mailbox command to reset the FCoE function.
7740 * At the end of the function, it calls lpfc_hba_down_post function to
7741 * free any pending commands.
7742 **/
7743static void
7744lpfc_sli4_hba_unset(struct lpfc_hba *phba)
7745{
7746 int wait_cnt = 0;
7747 LPFC_MBOXQ_t *mboxq;
7748
7749 lpfc_stop_hba_timers(phba);
7750 phba->sli4_hba.intr_enable = 0;
7751
7752 /*
7753 * Gracefully wait out the potential current outstanding asynchronous
7754 * mailbox command.
7755 */
7756
7757 /* First, block any pending async mailbox command from posted */
7758 spin_lock_irq(&phba->hbalock);
7759 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7760 spin_unlock_irq(&phba->hbalock);
7761 /* Now, trying to wait it out if we can */
7762 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7763 msleep(10);
7764 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
7765 break;
7766 }
7767 /* Forcefully release the outstanding mailbox command if timed out */
7768 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7769 spin_lock_irq(&phba->hbalock);
7770 mboxq = phba->sli.mbox_active;
7771 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7772 __lpfc_mbox_cmpl_put(phba, mboxq);
7773 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7774 phba->sli.mbox_active = NULL;
7775 spin_unlock_irq(&phba->hbalock);
7776 }
7777
5af5eee7
JS		 7778 /* Abort all iocbs associated with the hba */
7779 lpfc_sli_hba_iocb_abort(phba);
7780
7781 /* Wait for completion of device XRI exchange busy */
7782 lpfc_sli4_xri_exchange_busy_wait(phba);
7783
da0436e9
JS		 7784 /* Disable PCI subsystem interrupt */
7785 lpfc_sli4_disable_intr(phba);
7786
7787 /* Stop kthread signal shall trigger work_done one more time */
7788 kthread_stop(phba->worker_thread);
7789
3677a3a7
JS		 7790 /* Reset SLI4 HBA FCoE function */
7791 lpfc_pci_function_reset(phba);
7792
da0436e9
JS		 7793 /* Stop the SLI4 device port */
7794 phba->pport->work_port_events = 0;
7795}
7796
28baac74
JS		 7797 /**
7798 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
7799 * @phba: Pointer to HBA context object.
7800 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7801 *
7802 * This function is called in the SLI4 code path to read the port's
7803 * sli4 capabilities.
7804 *
7805 * This function may be be called from any context that can block-wait
7806 * for the completion. The expectation is that this routine is called
7807 * typically from probe_one or from the online routine.
7808 **/
7809int
7810lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7811{
7812 int rc;
7813 struct lpfc_mqe *mqe;
7814 struct lpfc_pc_sli4_params *sli4_params;
7815 uint32_t mbox_tmo;
7816
7817 rc = 0;
7818 mqe = &mboxq->u.mqe;
7819
7820 /* Read the port's SLI4 Parameters port capabilities */
fedd3b7b 7821 lpfc_pc_sli4_params(mboxq);
28baac74
JS		 7822 if (!phba->sli4_hba.intr_enable)
7823 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7824 else {
7825 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES);
7826 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7827 }
7828
7829 if (unlikely(rc))
7830 return 1;
7831
7832 sli4_params = &phba->sli4_hba.pc_sli4_params;
7833 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
7834 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
7835 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
7836 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
7837 &mqe->un.sli4_params);
7838 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
7839 &mqe->un.sli4_params);
7840 sli4_params->proto_types = mqe->un.sli4_params.word3;
7841 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
7842 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
7843 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
7844 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
7845 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
7846 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
7847 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
7848 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
7849 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
7850 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
7851 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
7852 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
7853 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
7854 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
7855 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
7856 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
7857 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
7858 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
7859 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
7860 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
7861 return rc;
7862}
7863
fedd3b7b
JS		 7864/**
7865 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
7866 * @phba: Pointer to HBA context object.
7867 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7868 *
7869 * This function is called in the SLI4 code path to read the port's
7870 * sli4 capabilities.
7871 *
7872 * This function may be be called from any context that can block-wait
7873 * for the completion. The expectation is that this routine is called
7874 * typically from probe_one or from the online routine.
7875 **/
7876int
7877lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7878{
7879 int rc;
7880 struct lpfc_mqe *mqe = &mboxq->u.mqe;
7881 struct lpfc_pc_sli4_params *sli4_params;
7882 int length;
7883 struct lpfc_sli4_parameters *mbx_sli4_parameters;
7884
7885 /* Read the port's SLI4 Config Parameters */
7886 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
7887 sizeof(struct lpfc_sli4_cfg_mhdr));
7888 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7889 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
7890 length, LPFC_SLI4_MBX_EMBED);
7891 if (!phba->sli4_hba.intr_enable)
7892 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7893 else
7894 rc = lpfc_sli_issue_mbox_wait(phba, mboxq,
7895 lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG));
7896 if (unlikely(rc))
7897 return rc;
7898 sli4_params = &phba->sli4_hba.pc_sli4_params;
7899 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
7900 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
7901 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
7902 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
7903 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
7904 mbx_sli4_parameters);
7905 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
7906 mbx_sli4_parameters);
7907 if (bf_get(cfg_phwq, mbx_sli4_parameters))
7908 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
7909 else
7910 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
7911 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
7912 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
7913 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
7914 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
7915 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
7916 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
7917 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
7918 mbx_sli4_parameters);
7919 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
7920 mbx_sli4_parameters);
7921 return 0;
7922}
7923
da0436e9
JS		 7924/**
7925 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
7926 * @pdev: pointer to PCI device
7927 * @pid: pointer to PCI device identifier
7928 *
7929 * This routine is to be called to attach a device with SLI-3 interface spec
7930 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7931 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7932 * information of the device and driver to see if the driver state that it can
7933 * support this kind of device. If the match is successful, the driver core
7934 * invokes this routine. If this routine determines it can claim the HBA, it
7935 * does all the initialization that it needs to do to handle the HBA properly.
7936 *
7937 * Return code
7938 * 0 - driver can claim the device
7939 * negative value - driver can not claim the device
7940 **/
7941static int __devinit
7942lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
7943{
7944 struct lpfc_hba *phba;
7945 struct lpfc_vport *vport = NULL;
6669f9bb 7946 struct Scsi_Host *shost = NULL;
da0436e9
JS		 7947 int error;
7948 uint32_t cfg_mode, intr_mode;
7949
7950 /* Allocate memory for HBA structure */
7951 phba = lpfc_hba_alloc(pdev);
7952 if (!phba)
7953 return -ENOMEM;
7954
7955 /* Perform generic PCI device enabling operation */
7956 error = lpfc_enable_pci_dev(phba);
7957 if (error) {
7958 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7959 "1401 Failed to enable pci device.\n");
7960 goto out_free_phba;
7961 }
7962
7963 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
7964 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
7965 if (error)
7966 goto out_disable_pci_dev;
7967
7968 /* Set up SLI-3 specific device PCI memory space */
7969 error = lpfc_sli_pci_mem_setup(phba);
7970 if (error) {
7971 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7972 "1402 Failed to set up pci memory space.\n");
7973 goto out_disable_pci_dev;
7974 }
7975
7976 /* Set up phase-1 common device driver resources */
7977 error = lpfc_setup_driver_resource_phase1(phba);
7978 if (error) {
7979 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7980 "1403 Failed to set up driver resource.\n");
7981 goto out_unset_pci_mem_s3;
7982 }
7983
7984 /* Set up SLI-3 specific device driver resources */
7985 error = lpfc_sli_driver_resource_setup(phba);
7986 if (error) {
7987 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7988 "1404 Failed to set up driver resource.\n");
7989 goto out_unset_pci_mem_s3;
7990 }
7991
7992 /* Initialize and populate the iocb list per host */
7993 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
7994 if (error) {
7995 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7996 "1405 Failed to initialize iocb list.\n");
7997 goto out_unset_driver_resource_s3;
7998 }
7999
8000 /* Set up common device driver resources */
8001 error = lpfc_setup_driver_resource_phase2(phba);
8002 if (error) {
8003 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8004 "1406 Failed to set up driver resource.\n");
8005 goto out_free_iocb_list;
8006 }
8007
8008 /* Create SCSI host to the physical port */
8009 error = lpfc_create_shost(phba);
8010 if (error) {
8011 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8012 "1407 Failed to create scsi host.\n");
8013 goto out_unset_driver_resource;
8014 }
8015
8016 /* Configure sysfs attributes */
8017 vport = phba->pport;
8018 error = lpfc_alloc_sysfs_attr(vport);
8019 if (error) {
8020 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8021 "1476 Failed to allocate sysfs attr\n");
8022 goto out_destroy_shost;
8023 }
8024
6669f9bb 8025 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
da0436e9
JS		 8026 /* Now, trying to enable interrupt and bring up the device */
8027 cfg_mode = phba->cfg_use_msi;
8028 while (true) {
8029 /* Put device to a known state before enabling interrupt */
8030 lpfc_stop_port(phba);
8031 /* Configure and enable interrupt */
8032 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
8033 if (intr_mode == LPFC_INTR_ERROR) {
8034 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8035 "0431 Failed to enable interrupt.\n");
8036 error = -ENODEV;
8037 goto out_free_sysfs_attr;
8038 }
8039 /* SLI-3 HBA setup */
8040 if (lpfc_sli_hba_setup(phba)) {
8041 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8042 "1477 Failed to set up hba\n");
8043 error = -ENODEV;
8044 goto out_remove_device;
8045 }
8046
8047 /* Wait 50ms for the interrupts of previous mailbox commands */
8048 msleep(50);
8049 /* Check active interrupts on message signaled interrupts */
8050 if (intr_mode == 0 ||
8051 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
8052 /* Log the current active interrupt mode */
8053 phba->intr_mode = intr_mode;
8054 lpfc_log_intr_mode(phba, intr_mode);
8055 break;
8056 } else {
8057 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8058 "0447 Configure interrupt mode (%d) "
8059 "failed active interrupt test.\n",
8060 intr_mode);
8061 /* Disable the current interrupt mode */
8062 lpfc_sli_disable_intr(phba);
8063 /* Try next level of interrupt mode */
8064 cfg_mode = --intr_mode;
8065 }
8066 }
8067
8068 /* Perform post initialization setup */
8069 lpfc_post_init_setup(phba);
8070
8071 /* Check if there are static vports to be created. */
8072 lpfc_create_static_vport(phba);
8073
8074 return 0;
8075
8076out_remove_device:
8077 lpfc_unset_hba(phba);
8078out_free_sysfs_attr:
8079 lpfc_free_sysfs_attr(vport);
8080out_destroy_shost:
8081 lpfc_destroy_shost(phba);
8082out_unset_driver_resource:
8083 lpfc_unset_driver_resource_phase2(phba);
8084out_free_iocb_list:
8085 lpfc_free_iocb_list(phba);
8086out_unset_driver_resource_s3:
8087 lpfc_sli_driver_resource_unset(phba);
8088out_unset_pci_mem_s3:
8089 lpfc_sli_pci_mem_unset(phba);
8090out_disable_pci_dev:
8091 lpfc_disable_pci_dev(phba);
6669f9bb
JS		 8092 if (shost)
8093 scsi_host_put(shost);
da0436e9
JS		 8094out_free_phba:
8095 lpfc_hba_free(phba);
8096 return error;
8097}
8098
8099/**
8100 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8101 * @pdev: pointer to PCI device
8102 *
8103 * This routine is to be called to disattach a device with SLI-3 interface
8104 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8105 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8106 * device to be removed from the PCI subsystem properly.
8107 **/
8108static void __devexit
8109lpfc_pci_remove_one_s3(struct pci_dev *pdev)
8110{
8111 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8112 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8113 struct lpfc_vport **vports;
8114 struct lpfc_hba *phba = vport->phba;
8115 int i;
8116 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
8117
8118 spin_lock_irq(&phba->hbalock);
8119 vport->load_flag |= FC_UNLOADING;
8120 spin_unlock_irq(&phba->hbalock);
8121
8122 lpfc_free_sysfs_attr(vport);
8123
8124 /* Release all the vports against this physical port */
8125 vports = lpfc_create_vport_work_array(phba);
8126 if (vports != NULL)
8127 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8128 fc_vport_terminate(vports[i]->fc_vport);
8129 lpfc_destroy_vport_work_array(phba, vports);
8130
8131 /* Remove FC host and then SCSI host with the physical port */
8132 fc_remove_host(shost);
8133 scsi_remove_host(shost);
8134 lpfc_cleanup(vport);
8135
8136 /*
8137 * Bring down the SLI Layer. This step disable all interrupts,
8138 * clears the rings, discards all mailbox commands, and resets
8139 * the HBA.
8140 */
8141
48e34d0f 8142 /* HBA interrupt will be disabled after this call */
da0436e9
JS		 8143 lpfc_sli_hba_down(phba);
8144 /* Stop kthread signal shall trigger work_done one more time */
8145 kthread_stop(phba->worker_thread);
8146 /* Final cleanup of txcmplq and reset the HBA */
8147 lpfc_sli_brdrestart(phba);
8148
8149 lpfc_stop_hba_timers(phba);
8150 spin_lock_irq(&phba->hbalock);
8151 list_del_init(&vport->listentry);
8152 spin_unlock_irq(&phba->hbalock);
8153
8154 lpfc_debugfs_terminate(vport);
8155
8156 /* Disable interrupt */
8157 lpfc_sli_disable_intr(phba);
8158
8159 pci_set_drvdata(pdev, NULL);
8160 scsi_host_put(shost);
8161
8162 /*
8163 * Call scsi_free before mem_free since scsi bufs are released to their
8164 * corresponding pools here.
8165 */
8166 lpfc_scsi_free(phba);
8167 lpfc_mem_free_all(phba);
8168
8169 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
8170 phba->hbqslimp.virt, phba->hbqslimp.phys);
8171
8172 /* Free resources associated with SLI2 interface */
8173 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
8174 phba->slim2p.virt, phba->slim2p.phys);
8175
8176 /* unmap adapter SLIM and Control Registers */
8177 iounmap(phba->ctrl_regs_memmap_p);
8178 iounmap(phba->slim_memmap_p);
8179
8180 lpfc_hba_free(phba);
8181
8182 pci_release_selected_regions(pdev, bars);
8183 pci_disable_device(pdev);
8184}
8185
8186/**
8187 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
8188 * @pdev: pointer to PCI device
8189 * @msg: power management message
8190 *
8191 * This routine is to be called from the kernel's PCI subsystem to support
8192 * system Power Management (PM) to device with SLI-3 interface spec. When
8193 * PM invokes this method, it quiesces the device by stopping the driver's
8194 * worker thread for the device, turning off device's interrupt and DMA,
8195 * and bring the device offline. Note that as the driver implements the
8196 * minimum PM requirements to a power-aware driver's PM support for the
8197 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8198 * to the suspend() method call will be treated as SUSPEND and the driver will
8199 * fully reinitialize its device during resume() method call, the driver will
8200 * set device to PCI_D3hot state in PCI config space instead of setting it
8201 * according to the @msg provided by the PM.
8202 *
8203 * Return code
8204 * 0 - driver suspended the device
8205 * Error otherwise
8206 **/
8207static int
8208lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
8209{
8210 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8211 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8212
8213 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8214 "0473 PCI device Power Management suspend.\n");
8215
8216 /* Bring down the device */
8217 lpfc_offline_prep(phba);
8218 lpfc_offline(phba);
8219 kthread_stop(phba->worker_thread);
8220
8221 /* Disable interrupt from device */
8222 lpfc_sli_disable_intr(phba);
8223
8224 /* Save device state to PCI config space */
8225 pci_save_state(pdev);
8226 pci_set_power_state(pdev, PCI_D3hot);
8227
8228 return 0;
8229}
8230
8231/**
8232 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
8233 * @pdev: pointer to PCI device
8234 *
8235 * This routine is to be called from the kernel's PCI subsystem to support
8236 * system Power Management (PM) to device with SLI-3 interface spec. When PM
8237 * invokes this method, it restores the device's PCI config space state and
8238 * fully reinitializes the device and brings it online. Note that as the
8239 * driver implements the minimum PM requirements to a power-aware driver's
8240 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
8241 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
8242 * driver will fully reinitialize its device during resume() method call,
8243 * the device will be set to PCI_D0 directly in PCI config space before
8244 * restoring the state.
8245 *
8246 * Return code
8247 * 0 - driver suspended the device
8248 * Error otherwise
8249 **/
8250static int
8251lpfc_pci_resume_one_s3(struct pci_dev *pdev)
8252{
8253 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8254 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8255 uint32_t intr_mode;
8256 int error;
8257
8258 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8259 "0452 PCI device Power Management resume.\n");
8260
8261 /* Restore device state from PCI config space */
8262 pci_set_power_state(pdev, PCI_D0);
8263 pci_restore_state(pdev);
0d878419 8264
1dfb5a47
JS		 8265 /*
8266 * As the new kernel behavior of pci_restore_state() API call clears
8267 * device saved_state flag, need to save the restored state again.
8268 */
8269 pci_save_state(pdev);
8270
da0436e9
JS		 8271 if (pdev->is_busmaster)
8272 pci_set_master(pdev);
8273
8274 /* Startup the kernel thread for this host adapter. */
8275 phba->worker_thread = kthread_run(lpfc_do_work, phba,
8276 "lpfc_worker_%d", phba->brd_no);
8277 if (IS_ERR(phba->worker_thread)) {
8278 error = PTR_ERR(phba->worker_thread);
8279 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8280 "0434 PM resume failed to start worker "
8281 "thread: error=x%x.\n", error);
8282 return error;
8283 }
8284
8285 /* Configure and enable interrupt */
8286 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8287 if (intr_mode == LPFC_INTR_ERROR) {
8288 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8289 "0430 PM resume Failed to enable interrupt\n");
8290 return -EIO;
8291 } else
8292 phba->intr_mode = intr_mode;
8293
8294 /* Restart HBA and bring it online */
8295 lpfc_sli_brdrestart(phba);
8296 lpfc_online(phba);
8297
8298 /* Log the current active interrupt mode */
8299 lpfc_log_intr_mode(phba, phba->intr_mode);
8300
8301 return 0;
8302}
8303
891478a2
JS		 8304/**
8305 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
8306 * @phba: pointer to lpfc hba data structure.
8307 *
8308 * This routine is called to prepare the SLI3 device for PCI slot recover. It
e2af0d2e 8309 * aborts all the outstanding SCSI I/Os to the pci device.
891478a2
JS		 8310 **/
8311static void
8312lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
8313{
e2af0d2e
JS		 8314 struct lpfc_sli *psli = &phba->sli;
8315 struct lpfc_sli_ring *pring;
8316
891478a2
JS		 8317 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8318 "2723 PCI channel I/O abort preparing for recovery\n");
e2af0d2e
JS		 8319
8320 /*
8321 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8322 * and let the SCSI mid-layer to retry them to recover.
8323 */
8324 pring = &psli->ring[psli->fcp_ring];
8325 lpfc_sli_abort_iocb_ring(phba, pring);
891478a2
JS		 8326}
8327
0d878419
JS		 8328/**
8329 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
8330 * @phba: pointer to lpfc hba data structure.
8331 *
8332 * This routine is called to prepare the SLI3 device for PCI slot reset. It
8333 * disables the device interrupt and pci device, and aborts the internal FCP
8334 * pending I/Os.
8335 **/
8336static void
8337lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
8338{
0d878419 8339 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
891478a2 8340 "2710 PCI channel disable preparing for reset\n");
e2af0d2e 8341
75baf696
JS		 8342 /* Block any management I/Os to the device */
8343 lpfc_block_mgmt_io(phba);
8344
e2af0d2e
JS		 8345 /* Block all SCSI devices' I/Os on the host */
8346 lpfc_scsi_dev_block(phba);
8347
8348 /* stop all timers */
8349 lpfc_stop_hba_timers(phba);
8350
0d878419
JS		 8351 /* Disable interrupt and pci device */
8352 lpfc_sli_disable_intr(phba);
8353 pci_disable_device(phba->pcidev);
75baf696 8354
e2af0d2e
JS		 8355 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8356 lpfc_sli_flush_fcp_rings(phba);
0d878419
JS		 8357}
8358
8359/**
8360 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
8361 * @phba: pointer to lpfc hba data structure.
8362 *
8363 * This routine is called to prepare the SLI3 device for PCI slot permanently
8364 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8365 * pending I/Os.
8366 **/
8367static void
75baf696 8368lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
0d878419
JS		 8369{
8370 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
891478a2 8371 "2711 PCI channel permanent disable for failure\n");
e2af0d2e
JS		 8372 /* Block all SCSI devices' I/Os on the host */
8373 lpfc_scsi_dev_block(phba);
8374
8375 /* stop all timers */
8376 lpfc_stop_hba_timers(phba);
8377
0d878419
JS		 8378 /* Clean up all driver's outstanding SCSI I/Os */
8379 lpfc_sli_flush_fcp_rings(phba);
8380}
8381
da0436e9
JS		 8382/**
8383 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
8384 * @pdev: pointer to PCI device.
8385 * @state: the current PCI connection state.
8386 *
8387 * This routine is called from the PCI subsystem for I/O error handling to
8388 * device with SLI-3 interface spec. This function is called by the PCI
8389 * subsystem after a PCI bus error affecting this device has been detected.
8390 * When this function is invoked, it will need to stop all the I/Os and
8391 * interrupt(s) to the device. Once that is done, it will return
8392 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
8393 * as desired.
8394 *
8395 * Return codes
0d878419 8396 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
da0436e9
JS		 8397 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8398 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8399 **/
8400static pci_ers_result_t
8401lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
8402{
8403 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8404 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
da0436e9 8405
0d878419
JS		 8406 switch (state) {
8407 case pci_channel_io_normal:
891478a2
JS		 8408 /* Non-fatal error, prepare for recovery */
8409 lpfc_sli_prep_dev_for_recover(phba);
0d878419
JS		 8410 return PCI_ERS_RESULT_CAN_RECOVER;
8411 case pci_channel_io_frozen:
8412 /* Fatal error, prepare for slot reset */
8413 lpfc_sli_prep_dev_for_reset(phba);
8414 return PCI_ERS_RESULT_NEED_RESET;
8415 case pci_channel_io_perm_failure:
8416 /* Permanent failure, prepare for device down */
75baf696 8417 lpfc_sli_prep_dev_for_perm_failure(phba);
da0436e9 8418 return PCI_ERS_RESULT_DISCONNECT;
0d878419
JS		 8419 default:
8420 /* Unknown state, prepare and request slot reset */
8421 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8422 "0472 Unknown PCI error state: x%x\n", state);
8423 lpfc_sli_prep_dev_for_reset(phba);
8424 return PCI_ERS_RESULT_NEED_RESET;
da0436e9 8425 }
da0436e9
JS		 8426}
8427
8428/**
8429 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
8430 * @pdev: pointer to PCI device.
8431 *
8432 * This routine is called from the PCI subsystem for error handling to
8433 * device with SLI-3 interface spec. This is called after PCI bus has been
8434 * reset to restart the PCI card from scratch, as if from a cold-boot.
8435 * During the PCI subsystem error recovery, after driver returns
8436 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8437 * recovery and then call this routine before calling the .resume method
8438 * to recover the device. This function will initialize the HBA device,
8439 * enable the interrupt, but it will just put the HBA to offline state
8440 * without passing any I/O traffic.
8441 *
8442 * Return codes
8443 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8444 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8445 */
8446static pci_ers_result_t
8447lpfc_io_slot_reset_s3(struct pci_dev *pdev)
8448{
8449 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8450 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8451 struct lpfc_sli *psli = &phba->sli;
8452 uint32_t intr_mode;
8453
8454 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
8455 if (pci_enable_device_mem(pdev)) {
8456 printk(KERN_ERR "lpfc: Cannot re-enable "
8457 "PCI device after reset.\n");
8458 return PCI_ERS_RESULT_DISCONNECT;
8459 }
8460
8461 pci_restore_state(pdev);
1dfb5a47
JS		 8462
8463 /*
8464 * As the new kernel behavior of pci_restore_state() API call clears
8465 * device saved_state flag, need to save the restored state again.
8466 */
8467 pci_save_state(pdev);
8468
da0436e9
JS		 8469 if (pdev->is_busmaster)
8470 pci_set_master(pdev);
8471
8472 spin_lock_irq(&phba->hbalock);
8473 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8474 spin_unlock_irq(&phba->hbalock);
8475
8476 /* Configure and enable interrupt */
8477 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8478 if (intr_mode == LPFC_INTR_ERROR) {
8479 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8480 "0427 Cannot re-enable interrupt after "
8481 "slot reset.\n");
8482 return PCI_ERS_RESULT_DISCONNECT;
8483 } else
8484 phba->intr_mode = intr_mode;
8485
75baf696
JS		 8486 /* Take device offline, it will perform cleanup */
8487 lpfc_offline_prep(phba);
da0436e9
JS		 8488 lpfc_offline(phba);
8489 lpfc_sli_brdrestart(phba);
8490
8491 /* Log the current active interrupt mode */
8492 lpfc_log_intr_mode(phba, phba->intr_mode);
8493
8494 return PCI_ERS_RESULT_RECOVERED;
8495}
8496
8497/**
8498 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
8499 * @pdev: pointer to PCI device
8500 *
8501 * This routine is called from the PCI subsystem for error handling to device
8502 * with SLI-3 interface spec. It is called when kernel error recovery tells
8503 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8504 * error recovery. After this call, traffic can start to flow from this device
8505 * again.
8506 */
8507static void
8508lpfc_io_resume_s3(struct pci_dev *pdev)
8509{
8510 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8511 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3772a991 8512
e2af0d2e 8513 /* Bring device online, it will be no-op for non-fatal error resume */
da0436e9 8514 lpfc_online(phba);
0d878419
JS		 8515
8516 /* Clean up Advanced Error Reporting (AER) if needed */
8517 if (phba->hba_flag & HBA_AER_ENABLED)
8518 pci_cleanup_aer_uncorrect_error_status(pdev);
da0436e9 8519}
3772a991 8520
da0436e9
JS		 8521/**
8522 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
8523 * @phba: pointer to lpfc hba data structure.
8524 *
8525 * returns the number of ELS/CT IOCBs to reserve
8526 **/
8527int
8528lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
8529{
8530 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
8531
f1126688
JS		 8532 if (phba->sli_rev == LPFC_SLI_REV4) {
8533 if (max_xri <= 100)
6a9c52cf 8534 return 10;
f1126688 8535 else if (max_xri <= 256)
6a9c52cf 8536 return 25;
f1126688 8537 else if (max_xri <= 512)
6a9c52cf 8538 return 50;
f1126688 8539 else if (max_xri <= 1024)
6a9c52cf 8540 return 100;
f1126688 8541 else
6a9c52cf 8542 return 150;
f1126688
JS		 8543 } else
8544 return 0;
3772a991
JS		 8545}
8546
8547/**
da0436e9 8548 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
3772a991
JS		 8549 * @pdev: pointer to PCI device
8550 * @pid: pointer to PCI device identifier
8551 *
da0436e9
JS		 8552 * This routine is called from the kernel's PCI subsystem to device with
8553 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
3772a991 8554 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
da0436e9
JS		 8555 * information of the device and driver to see if the driver state that it
8556 * can support this kind of device. If the match is successful, the driver
8557 * core invokes this routine. If this routine determines it can claim the HBA,
8558 * it does all the initialization that it needs to do to handle the HBA
8559 * properly.
3772a991
JS		 8560 *
8561 * Return code
8562 * 0 - driver can claim the device
8563 * negative value - driver can not claim the device
8564 **/
8565static int __devinit
da0436e9 8566lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
3772a991
JS		 8567{
8568 struct lpfc_hba *phba;
8569 struct lpfc_vport *vport = NULL;
6669f9bb 8570 struct Scsi_Host *shost = NULL;
3772a991
JS		 8571 int error;
8572 uint32_t cfg_mode, intr_mode;
da0436e9 8573 int mcnt;
3772a991
JS		 8574
8575 /* Allocate memory for HBA structure */
8576 phba = lpfc_hba_alloc(pdev);
8577 if (!phba)
8578 return -ENOMEM;
8579
8580 /* Perform generic PCI device enabling operation */
8581 error = lpfc_enable_pci_dev(phba);
8582 if (error) {
8583 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 8584 "1409 Failed to enable pci device.\n");
3772a991
JS		 8585 goto out_free_phba;
8586 }
8587
da0436e9
JS		 8588 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
8589 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
3772a991
JS		 8590 if (error)
8591 goto out_disable_pci_dev;
8592
da0436e9
JS		 8593 /* Set up SLI-4 specific device PCI memory space */
8594 error = lpfc_sli4_pci_mem_setup(phba);
3772a991
JS		 8595 if (error) {
8596 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 8597 "1410 Failed to set up pci memory space.\n");
3772a991
JS		 8598 goto out_disable_pci_dev;
8599 }
8600
8601 /* Set up phase-1 common device driver resources */
8602 error = lpfc_setup_driver_resource_phase1(phba);
8603 if (error) {
8604 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 8605 "1411 Failed to set up driver resource.\n");
8606 goto out_unset_pci_mem_s4;
3772a991
JS		 8607 }
8608
da0436e9
JS		 8609 /* Set up SLI-4 Specific device driver resources */
8610 error = lpfc_sli4_driver_resource_setup(phba);
3772a991
JS		 8611 if (error) {
8612 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 8613 "1412 Failed to set up driver resource.\n");
8614 goto out_unset_pci_mem_s4;
3772a991
JS		 8615 }
8616
8617 /* Initialize and populate the iocb list per host */
2a9bf3d0
JS		 8618
8619 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8620 "2821 initialize iocb list %d.\n",
8621 phba->cfg_iocb_cnt*1024);
8622 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
8623
3772a991
JS		 8624 if (error) {
8625 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 8626 "1413 Failed to initialize iocb list.\n");
8627 goto out_unset_driver_resource_s4;
3772a991
JS		 8628 }
8629
19ca7609
JS		 8630 INIT_LIST_HEAD(&phba->active_rrq_list);
8631
3772a991
JS		 8632 /* Set up common device driver resources */
8633 error = lpfc_setup_driver_resource_phase2(phba);
8634 if (error) {
8635 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 8636 "1414 Failed to set up driver resource.\n");
3772a991
JS		 8637 goto out_free_iocb_list;
8638 }
8639
8640 /* Create SCSI host to the physical port */
8641 error = lpfc_create_shost(phba);
8642 if (error) {
8643 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 8644 "1415 Failed to create scsi host.\n");
3772a991
JS		 8645 goto out_unset_driver_resource;
8646 }
9399627f 8647
5b75da2f 8648 /* Configure sysfs attributes */
3772a991
JS		 8649 vport = phba->pport;
8650 error = lpfc_alloc_sysfs_attr(vport);
8651 if (error) {
9399627f 8652 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 8653 "1416 Failed to allocate sysfs attr\n");
3772a991 8654 goto out_destroy_shost;
98c9ea5c 8655 }
875fbdfe 8656
6669f9bb 8657 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
3772a991 8658 /* Now, trying to enable interrupt and bring up the device */
5b75da2f
JS		 8659 cfg_mode = phba->cfg_use_msi;
8660 while (true) {
3772a991
JS		 8661 /* Put device to a known state before enabling interrupt */
8662 lpfc_stop_port(phba);
5b75da2f 8663 /* Configure and enable interrupt */
da0436e9 8664 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
5b75da2f
JS		 8665 if (intr_mode == LPFC_INTR_ERROR) {
8666 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 8667 "0426 Failed to enable interrupt.\n");
3772a991 8668 error = -ENODEV;
5b75da2f
JS		 8669 goto out_free_sysfs_attr;
8670 }
def9c7a9
JS		 8671 /* Default to single FCP EQ for non-MSI-X */
8672 if (phba->intr_type != MSIX)
8673 phba->cfg_fcp_eq_count = 1;
75baf696
JS		 8674 else if (phba->sli4_hba.msix_vec_nr < phba->cfg_fcp_eq_count)
8675 phba->cfg_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
da0436e9
JS		 8676 /* Set up SLI-4 HBA */
8677 if (lpfc_sli4_hba_setup(phba)) {
5b75da2f 8678 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 8679 "1421 Failed to set up hba\n");
5b75da2f 8680 error = -ENODEV;
da0436e9 8681 goto out_disable_intr;
5b75da2f
JS		 8682 }
8683
da0436e9
JS		 8684 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
8685 if (intr_mode != 0)
8686 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
8687 LPFC_ACT_INTR_CNT);
8688
8689 /* Check active interrupts received only for MSI/MSI-X */
3772a991 8690 if (intr_mode == 0 ||
da0436e9 8691 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
5b75da2f
JS		 8692 /* Log the current active interrupt mode */
8693 phba->intr_mode = intr_mode;
8694 lpfc_log_intr_mode(phba, intr_mode);
8695 break;
5b75da2f 8696 }
da0436e9
JS		 8697 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8698 "0451 Configure interrupt mode (%d) "
8699 "failed active interrupt test.\n",
8700 intr_mode);
2fcee4bf
JS		 8701 /* Unset the previous SLI-4 HBA setup. */
8702 /*
8703 * TODO: Is this operation compatible with IF TYPE 2
8704 * devices? All port state is deleted and cleared.
8705 */
da0436e9
JS		 8706 lpfc_sli4_unset_hba(phba);
8707 /* Try next level of interrupt mode */
8708 cfg_mode = --intr_mode;
98c9ea5c 8709 }
858c9f6c 8710
3772a991
JS		 8711 /* Perform post initialization setup */
8712 lpfc_post_init_setup(phba);
dea3101e 8713
1c6834a7
JS		 8714 /* Check if there are static vports to be created. */
8715 lpfc_create_static_vport(phba);
8716
dea3101e
JB		 8717 return 0;
8718
da0436e9
JS		 8719out_disable_intr:
8720 lpfc_sli4_disable_intr(phba);
5b75da2f
JS		 8721out_free_sysfs_attr:
8722 lpfc_free_sysfs_attr(vport);
3772a991
JS		 8723out_destroy_shost:
8724 lpfc_destroy_shost(phba);
8725out_unset_driver_resource:
8726 lpfc_unset_driver_resource_phase2(phba);
8727out_free_iocb_list:
8728 lpfc_free_iocb_list(phba);
da0436e9
JS		 8729out_unset_driver_resource_s4:
8730 lpfc_sli4_driver_resource_unset(phba);
8731out_unset_pci_mem_s4:
8732 lpfc_sli4_pci_mem_unset(phba);
3772a991
JS		 8733out_disable_pci_dev:
8734 lpfc_disable_pci_dev(phba);
6669f9bb
JS		 8735 if (shost)
8736 scsi_host_put(shost);
2e0fef85 8737out_free_phba:
3772a991 8738 lpfc_hba_free(phba);
dea3101e
JB		 8739 return error;
8740}
8741
e59058c4 8742/**
da0436e9 8743 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
e59058c4
JS		 8744 * @pdev: pointer to PCI device
8745 *
da0436e9
JS		 8746 * This routine is called from the kernel's PCI subsystem to device with
8747 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
3772a991
JS		 8748 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8749 * device to be removed from the PCI subsystem properly.
e59058c4 8750 **/
dea3101e 8751static void __devexit
da0436e9 8752lpfc_pci_remove_one_s4(struct pci_dev *pdev)
dea3101e 8753{
da0436e9 8754 struct Scsi_Host *shost = pci_get_drvdata(pdev);
2e0fef85 8755 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
eada272d 8756 struct lpfc_vport **vports;
da0436e9 8757 struct lpfc_hba *phba = vport->phba;
eada272d 8758 int i;
8a4df120 8759
da0436e9 8760 /* Mark the device unloading flag */
549e55cd 8761 spin_lock_irq(&phba->hbalock);
51ef4c26 8762 vport->load_flag |= FC_UNLOADING;
549e55cd 8763 spin_unlock_irq(&phba->hbalock);
2e0fef85 8764
da0436e9 8765 /* Free the HBA sysfs attributes */
858c9f6c
JS		 8766 lpfc_free_sysfs_attr(vport);
8767
eada272d
JS		 8768 /* Release all the vports against this physical port */
8769 vports = lpfc_create_vport_work_array(phba);
8770 if (vports != NULL)
3772a991 8771 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
eada272d
JS		 8772 fc_vport_terminate(vports[i]->fc_vport);
8773 lpfc_destroy_vport_work_array(phba, vports);
8774
8775 /* Remove FC host and then SCSI host with the physical port */
858c9f6c
JS		 8776 fc_remove_host(shost);
8777 scsi_remove_host(shost);
da0436e9
JS		 8778
8779 /* Perform cleanup on the physical port */
87af33fe
JS		 8780 lpfc_cleanup(vport);
8781
2e0fef85 8782 /*
da0436e9 8783 * Bring down the SLI Layer. This step disables all interrupts,
2e0fef85 8784 * clears the rings, discards all mailbox commands, and resets
da0436e9 8785 * the HBA FCoE function.
2e0fef85 8786 */
da0436e9
JS		 8787 lpfc_debugfs_terminate(vport);
8788 lpfc_sli4_hba_unset(phba);
a257bf90 8789
858c9f6c
JS		 8790 spin_lock_irq(&phba->hbalock);
8791 list_del_init(&vport->listentry);
8792 spin_unlock_irq(&phba->hbalock);
8793
3677a3a7 8794 /* Perform scsi free before driver resource_unset since scsi
da0436e9 8795 * buffers are released to their corresponding pools here.
2e0fef85
JS		 8796 */
8797 lpfc_scsi_free(phba);
da0436e9 8798 lpfc_sli4_driver_resource_unset(phba);
ed957684 8799
da0436e9
JS		 8800 /* Unmap adapter Control and Doorbell registers */
8801 lpfc_sli4_pci_mem_unset(phba);
2e0fef85 8802
da0436e9
JS		 8803 /* Release PCI resources and disable device's PCI function */
8804 scsi_host_put(shost);
8805 lpfc_disable_pci_dev(phba);
2e0fef85 8806
da0436e9 8807 /* Finally, free the driver's device data structure */
3772a991 8808 lpfc_hba_free(phba);
2e0fef85 8809
da0436e9 8810 return;
dea3101e
JB		 8811}
8812
3a55b532 8813/**
da0436e9 8814 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
3a55b532
JS		 8815 * @pdev: pointer to PCI device
8816 * @msg: power management message
8817 *
da0436e9
JS		 8818 * This routine is called from the kernel's PCI subsystem to support system
8819 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
8820 * this method, it quiesces the device by stopping the driver's worker
8821 * thread for the device, turning off device's interrupt and DMA, and bring
8822 * the device offline. Note that as the driver implements the minimum PM
8823 * requirements to a power-aware driver's PM support for suspend/resume -- all
8824 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
8825 * method call will be treated as SUSPEND and the driver will fully
8826 * reinitialize its device during resume() method call, the driver will set
8827 * device to PCI_D3hot state in PCI config space instead of setting it
3772a991 8828 * according to the @msg provided by the PM.
3a55b532
JS		 8829 *
8830 * Return code
3772a991
JS		 8831 * 0 - driver suspended the device
8832 * Error otherwise
3a55b532
JS		 8833 **/
8834static int
da0436e9 8835lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
3a55b532
JS		 8836{
8837 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8838 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8839
8840 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
75baf696 8841 "2843 PCI device Power Management suspend.\n");
3a55b532
JS		 8842
8843 /* Bring down the device */
8844 lpfc_offline_prep(phba);
8845 lpfc_offline(phba);
8846 kthread_stop(phba->worker_thread);
8847
8848 /* Disable interrupt from device */
da0436e9 8849 lpfc_sli4_disable_intr(phba);
3a55b532
JS		 8850
8851 /* Save device state to PCI config space */
8852 pci_save_state(pdev);
8853 pci_set_power_state(pdev, PCI_D3hot);
8854
8855 return 0;
8856}
8857
8858/**
da0436e9 8859 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
3a55b532
JS		 8860 * @pdev: pointer to PCI device
8861 *
da0436e9
JS		 8862 * This routine is called from the kernel's PCI subsystem to support system
8863 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
8864 * this method, it restores the device's PCI config space state and fully
8865 * reinitializes the device and brings it online. Note that as the driver
8866 * implements the minimum PM requirements to a power-aware driver's PM for
8867 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8868 * to the suspend() method call will be treated as SUSPEND and the driver
8869 * will fully reinitialize its device during resume() method call, the device
8870 * will be set to PCI_D0 directly in PCI config space before restoring the
8871 * state.
3a55b532
JS		 8872 *
8873 * Return code
3772a991
JS		 8874 * 0 - driver suspended the device
8875 * Error otherwise
3a55b532
JS		 8876 **/
8877static int
da0436e9 8878lpfc_pci_resume_one_s4(struct pci_dev *pdev)
3a55b532
JS		 8879{
8880 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8881 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
5b75da2f 8882 uint32_t intr_mode;
3a55b532
JS		 8883 int error;
8884
8885 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
da0436e9 8886 "0292 PCI device Power Management resume.\n");
3a55b532
JS		 8887
8888 /* Restore device state from PCI config space */
8889 pci_set_power_state(pdev, PCI_D0);
8890 pci_restore_state(pdev);
1dfb5a47
JS		 8891
8892 /*
8893 * As the new kernel behavior of pci_restore_state() API call clears
8894 * device saved_state flag, need to save the restored state again.
8895 */
8896 pci_save_state(pdev);
8897
3a55b532
JS		 8898 if (pdev->is_busmaster)
8899 pci_set_master(pdev);
8900
da0436e9 8901 /* Startup the kernel thread for this host adapter. */
3a55b532
JS		 8902 phba->worker_thread = kthread_run(lpfc_do_work, phba,
8903 "lpfc_worker_%d", phba->brd_no);
8904 if (IS_ERR(phba->worker_thread)) {
8905 error = PTR_ERR(phba->worker_thread);
8906 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 8907 "0293 PM resume failed to start worker "
3a55b532
JS		 8908 "thread: error=x%x.\n", error);
8909 return error;
8910 }
8911
5b75da2f 8912 /* Configure and enable interrupt */
da0436e9 8913 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
5b75da2f 8914 if (intr_mode == LPFC_INTR_ERROR) {
3a55b532 8915 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 8916 "0294 PM resume Failed to enable interrupt\n");
5b75da2f
JS		 8917 return -EIO;
8918 } else
8919 phba->intr_mode = intr_mode;
3a55b532
JS		 8920
8921 /* Restart HBA and bring it online */
8922 lpfc_sli_brdrestart(phba);
8923 lpfc_online(phba);
8924
5b75da2f
JS		 8925 /* Log the current active interrupt mode */
8926 lpfc_log_intr_mode(phba, phba->intr_mode);
8927
3a55b532
JS		 8928 return 0;
8929}
8930
75baf696
JS		 8931/**
8932 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
8933 * @phba: pointer to lpfc hba data structure.
8934 *
8935 * This routine is called to prepare the SLI4 device for PCI slot recover. It
8936 * aborts all the outstanding SCSI I/Os to the pci device.
8937 **/
8938static void
8939lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
8940{
8941 struct lpfc_sli *psli = &phba->sli;
8942 struct lpfc_sli_ring *pring;
8943
8944 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8945 "2828 PCI channel I/O abort preparing for recovery\n");
8946 /*
8947 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8948 * and let the SCSI mid-layer to retry them to recover.
8949 */
8950 pring = &psli->ring[psli->fcp_ring];
8951 lpfc_sli_abort_iocb_ring(phba, pring);
8952}
8953
8954/**
8955 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
8956 * @phba: pointer to lpfc hba data structure.
8957 *
8958 * This routine is called to prepare the SLI4 device for PCI slot reset. It
8959 * disables the device interrupt and pci device, and aborts the internal FCP
8960 * pending I/Os.
8961 **/
8962static void
8963lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
8964{
8965 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8966 "2826 PCI channel disable preparing for reset\n");
8967
8968 /* Block any management I/Os to the device */
8969 lpfc_block_mgmt_io(phba);
8970
8971 /* Block all SCSI devices' I/Os on the host */
8972 lpfc_scsi_dev_block(phba);
8973
8974 /* stop all timers */
8975 lpfc_stop_hba_timers(phba);
8976
8977 /* Disable interrupt and pci device */
8978 lpfc_sli4_disable_intr(phba);
8979 pci_disable_device(phba->pcidev);
8980
8981 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8982 lpfc_sli_flush_fcp_rings(phba);
8983}
8984
8985/**
8986 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
8987 * @phba: pointer to lpfc hba data structure.
8988 *
8989 * This routine is called to prepare the SLI4 device for PCI slot permanently
8990 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8991 * pending I/Os.
8992 **/
8993static void
8994lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
8995{
8996 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8997 "2827 PCI channel permanent disable for failure\n");
8998
8999 /* Block all SCSI devices' I/Os on the host */
9000 lpfc_scsi_dev_block(phba);
9001
9002 /* stop all timers */
9003 lpfc_stop_hba_timers(phba);
9004
9005 /* Clean up all driver's outstanding SCSI I/Os */
9006 lpfc_sli_flush_fcp_rings(phba);
9007}
9008
8d63f375 9009/**
da0436e9 9010 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
e59058c4
JS		 9011 * @pdev: pointer to PCI device.
9012 * @state: the current PCI connection state.
8d63f375 9013 *
da0436e9
JS		 9014 * This routine is called from the PCI subsystem for error handling to device
9015 * with SLI-4 interface spec. This function is called by the PCI subsystem
9016 * after a PCI bus error affecting this device has been detected. When this
9017 * function is invoked, it will need to stop all the I/Os and interrupt(s)
9018 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
9019 * for the PCI subsystem to perform proper recovery as desired.
e59058c4
JS		 9020 *
9021 * Return codes
3772a991
JS		 9022 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9023 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
e59058c4 9024 **/
3772a991 9025static pci_ers_result_t
da0436e9 9026lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
8d63f375 9027{
75baf696
JS		 9028 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9029 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9030
9031 switch (state) {
9032 case pci_channel_io_normal:
9033 /* Non-fatal error, prepare for recovery */
9034 lpfc_sli4_prep_dev_for_recover(phba);
9035 return PCI_ERS_RESULT_CAN_RECOVER;
9036 case pci_channel_io_frozen:
9037 /* Fatal error, prepare for slot reset */
9038 lpfc_sli4_prep_dev_for_reset(phba);
9039 return PCI_ERS_RESULT_NEED_RESET;
9040 case pci_channel_io_perm_failure:
9041 /* Permanent failure, prepare for device down */
9042 lpfc_sli4_prep_dev_for_perm_failure(phba);
9043 return PCI_ERS_RESULT_DISCONNECT;
9044 default:
9045 /* Unknown state, prepare and request slot reset */
9046 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9047 "2825 Unknown PCI error state: x%x\n", state);
9048 lpfc_sli4_prep_dev_for_reset(phba);
9049 return PCI_ERS_RESULT_NEED_RESET;
9050 }
8d63f375
LV		 9051}
9052
9053/**
da0436e9 9054 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
e59058c4
JS		 9055 * @pdev: pointer to PCI device.
9056 *
da0436e9
JS		 9057 * This routine is called from the PCI subsystem for error handling to device
9058 * with SLI-4 interface spec. It is called after PCI bus has been reset to
9059 * restart the PCI card from scratch, as if from a cold-boot. During the
9060 * PCI subsystem error recovery, after the driver returns
3772a991 9061 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
da0436e9
JS		 9062 * recovery and then call this routine before calling the .resume method to
9063 * recover the device. This function will initialize the HBA device, enable
9064 * the interrupt, but it will just put the HBA to offline state without
9065 * passing any I/O traffic.
8d63f375 9066 *
e59058c4 9067 * Return codes
3772a991
JS		 9068 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9069 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8d63f375 9070 */
3772a991 9071static pci_ers_result_t
da0436e9 9072lpfc_io_slot_reset_s4(struct pci_dev *pdev)
8d63f375 9073{
75baf696
JS		 9074 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9075 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9076 struct lpfc_sli *psli = &phba->sli;
9077 uint32_t intr_mode;
9078
9079 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9080 if (pci_enable_device_mem(pdev)) {
9081 printk(KERN_ERR "lpfc: Cannot re-enable "
9082 "PCI device after reset.\n");
9083 return PCI_ERS_RESULT_DISCONNECT;
9084 }
9085
9086 pci_restore_state(pdev);
9087 if (pdev->is_busmaster)
9088 pci_set_master(pdev);
9089
9090 spin_lock_irq(&phba->hbalock);
9091 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9092 spin_unlock_irq(&phba->hbalock);
9093
9094 /* Configure and enable interrupt */
9095 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9096 if (intr_mode == LPFC_INTR_ERROR) {
9097 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9098 "2824 Cannot re-enable interrupt after "
9099 "slot reset.\n");
9100 return PCI_ERS_RESULT_DISCONNECT;
9101 } else
9102 phba->intr_mode = intr_mode;
9103
9104 /* Log the current active interrupt mode */
9105 lpfc_log_intr_mode(phba, phba->intr_mode);
9106
8d63f375
LV		 9107 return PCI_ERS_RESULT_RECOVERED;
9108}
9109
9110/**
da0436e9 9111 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
e59058c4 9112 * @pdev: pointer to PCI device
8d63f375 9113 *
3772a991 9114 * This routine is called from the PCI subsystem for error handling to device
da0436e9 9115 * with SLI-4 interface spec. It is called when kernel error recovery tells
3772a991
JS		 9116 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9117 * error recovery. After this call, traffic can start to flow from this device
9118 * again.
da0436e9 9119 **/
3772a991 9120static void
da0436e9 9121lpfc_io_resume_s4(struct pci_dev *pdev)
8d63f375 9122{
75baf696
JS		 9123 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9124 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9125
9126 /*
9127 * In case of slot reset, as function reset is performed through
9128 * mailbox command which needs DMA to be enabled, this operation
9129 * has to be moved to the io resume phase. Taking device offline
9130 * will perform the necessary cleanup.
9131 */
9132 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
9133 /* Perform device reset */
9134 lpfc_offline_prep(phba);
9135 lpfc_offline(phba);
9136 lpfc_sli_brdrestart(phba);
9137 /* Bring the device back online */
9138 lpfc_online(phba);
9139 }
9140
9141 /* Clean up Advanced Error Reporting (AER) if needed */
9142 if (phba->hba_flag & HBA_AER_ENABLED)
9143 pci_cleanup_aer_uncorrect_error_status(pdev);
8d63f375
LV		 9144}
9145
3772a991
JS		 9146/**
9147 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
9148 * @pdev: pointer to PCI device
9149 * @pid: pointer to PCI device identifier
9150 *
9151 * This routine is to be registered to the kernel's PCI subsystem. When an
9152 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
9153 * at PCI device-specific information of the device and driver to see if the
9154 * driver state that it can support this kind of device. If the match is
9155 * successful, the driver core invokes this routine. This routine dispatches
9156 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
9157 * do all the initialization that it needs to do to handle the HBA device
9158 * properly.
9159 *
9160 * Return code
9161 * 0 - driver can claim the device
9162 * negative value - driver can not claim the device
9163 **/
9164static int __devinit
9165lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
9166{
9167 int rc;
8fa38513 9168 struct lpfc_sli_intf intf;
3772a991 9169
28baac74 9170 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
3772a991
JS		 9171 return -ENODEV;
9172
8fa38513 9173 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
28baac74 9174 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
da0436e9 9175 rc = lpfc_pci_probe_one_s4(pdev, pid);
8fa38513 9176 else
3772a991 9177 rc = lpfc_pci_probe_one_s3(pdev, pid);
8fa38513 9178
3772a991
JS		 9179 return rc;
9180}
9181
9182/**
9183 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
9184 * @pdev: pointer to PCI device
9185 *
9186 * This routine is to be registered to the kernel's PCI subsystem. When an
9187 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
9188 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
9189 * remove routine, which will perform all the necessary cleanup for the
9190 * device to be removed from the PCI subsystem properly.
9191 **/
9192static void __devexit
9193lpfc_pci_remove_one(struct pci_dev *pdev)
9194{
9195 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9196 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9197
9198 switch (phba->pci_dev_grp) {
9199 case LPFC_PCI_DEV_LP:
9200 lpfc_pci_remove_one_s3(pdev);
9201 break;
da0436e9
JS		 9202 case LPFC_PCI_DEV_OC:
9203 lpfc_pci_remove_one_s4(pdev);
9204 break;
3772a991
JS		 9205 default:
9206 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9207 "1424 Invalid PCI device group: 0x%x\n",
9208 phba->pci_dev_grp);
9209 break;
9210 }
9211 return;
9212}
9213
9214/**
9215 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
9216 * @pdev: pointer to PCI device
9217 * @msg: power management message
9218 *
9219 * This routine is to be registered to the kernel's PCI subsystem to support
9220 * system Power Management (PM). When PM invokes this method, it dispatches
9221 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
9222 * suspend the device.
9223 *
9224 * Return code
9225 * 0 - driver suspended the device
9226 * Error otherwise
9227 **/
9228static int
9229lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
9230{
9231 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9232 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9233 int rc = -ENODEV;
9234
9235 switch (phba->pci_dev_grp) {
9236 case LPFC_PCI_DEV_LP:
9237 rc = lpfc_pci_suspend_one_s3(pdev, msg);
9238 break;
da0436e9
JS		 9239 case LPFC_PCI_DEV_OC:
9240 rc = lpfc_pci_suspend_one_s4(pdev, msg);
9241 break;
3772a991
JS		 9242 default:
9243 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9244 "1425 Invalid PCI device group: 0x%x\n",
9245 phba->pci_dev_grp);
9246 break;
9247 }
9248 return rc;
9249}
9250
9251/**
9252 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
9253 * @pdev: pointer to PCI device
9254 *
9255 * This routine is to be registered to the kernel's PCI subsystem to support
9256 * system Power Management (PM). When PM invokes this method, it dispatches
9257 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
9258 * resume the device.
9259 *
9260 * Return code
9261 * 0 - driver suspended the device
9262 * Error otherwise
9263 **/
9264static int
9265lpfc_pci_resume_one(struct pci_dev *pdev)
9266{
9267 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9268 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9269 int rc = -ENODEV;
9270
9271 switch (phba->pci_dev_grp) {
9272 case LPFC_PCI_DEV_LP:
9273 rc = lpfc_pci_resume_one_s3(pdev);
9274 break;
da0436e9
JS		 9275 case LPFC_PCI_DEV_OC:
9276 rc = lpfc_pci_resume_one_s4(pdev);
9277 break;
3772a991
JS		 9278 default:
9279 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9280 "1426 Invalid PCI device group: 0x%x\n",
9281 phba->pci_dev_grp);
9282 break;
9283 }
9284 return rc;
9285}
9286
9287/**
9288 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
9289 * @pdev: pointer to PCI device.
9290 * @state: the current PCI connection state.
9291 *
9292 * This routine is registered to the PCI subsystem for error handling. This
9293 * function is called by the PCI subsystem after a PCI bus error affecting
9294 * this device has been detected. When this routine is invoked, it dispatches
9295 * the action to the proper SLI-3 or SLI-4 device error detected handling
9296 * routine, which will perform the proper error detected operation.
9297 *
9298 * Return codes
9299 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9300 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9301 **/
9302static pci_ers_result_t
9303lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9304{
9305 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9306 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9307 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9308
9309 switch (phba->pci_dev_grp) {
9310 case LPFC_PCI_DEV_LP:
9311 rc = lpfc_io_error_detected_s3(pdev, state);
9312 break;
da0436e9
JS		 9313 case LPFC_PCI_DEV_OC:
9314 rc = lpfc_io_error_detected_s4(pdev, state);
9315 break;
3772a991
JS		 9316 default:
9317 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9318 "1427 Invalid PCI device group: 0x%x\n",
9319 phba->pci_dev_grp);
9320 break;
9321 }
9322 return rc;
9323}
9324
9325/**
9326 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
9327 * @pdev: pointer to PCI device.
9328 *
9329 * This routine is registered to the PCI subsystem for error handling. This
9330 * function is called after PCI bus has been reset to restart the PCI card
9331 * from scratch, as if from a cold-boot. When this routine is invoked, it
9332 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
9333 * routine, which will perform the proper device reset.
9334 *
9335 * Return codes
9336 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9337 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9338 **/
9339static pci_ers_result_t
9340lpfc_io_slot_reset(struct pci_dev *pdev)
9341{
9342 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9343 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9344 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9345
9346 switch (phba->pci_dev_grp) {
9347 case LPFC_PCI_DEV_LP:
9348 rc = lpfc_io_slot_reset_s3(pdev);
9349 break;
da0436e9
JS		 9350 case LPFC_PCI_DEV_OC:
9351 rc = lpfc_io_slot_reset_s4(pdev);
9352 break;
3772a991
JS		 9353 default:
9354 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9355 "1428 Invalid PCI device group: 0x%x\n",
9356 phba->pci_dev_grp);
9357 break;
9358 }
9359 return rc;
9360}
9361
9362/**
9363 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
9364 * @pdev: pointer to PCI device
9365 *
9366 * This routine is registered to the PCI subsystem for error handling. It
9367 * is called when kernel error recovery tells the lpfc driver that it is
9368 * OK to resume normal PCI operation after PCI bus error recovery. When
9369 * this routine is invoked, it dispatches the action to the proper SLI-3
9370 * or SLI-4 device io_resume routine, which will resume the device operation.
9371 **/
9372static void
9373lpfc_io_resume(struct pci_dev *pdev)
9374{
9375 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9376 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9377
9378 switch (phba->pci_dev_grp) {
9379 case LPFC_PCI_DEV_LP:
9380 lpfc_io_resume_s3(pdev);
9381 break;
da0436e9
JS		 9382 case LPFC_PCI_DEV_OC:
9383 lpfc_io_resume_s4(pdev);
9384 break;
3772a991
JS		 9385 default:
9386 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9387 "1429 Invalid PCI device group: 0x%x\n",
9388 phba->pci_dev_grp);
9389 break;
9390 }
9391 return;
9392}
9393
dea3101e
JB		 9394static struct pci_device_id lpfc_id_table[] = {
9395 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
9396 PCI_ANY_ID, PCI_ANY_ID, },
06325e74
JSEC		 9397 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
9398 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e
JB		 9399 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
9400 PCI_ANY_ID, PCI_ANY_ID, },
9401 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
9402 PCI_ANY_ID, PCI_ANY_ID, },
9403 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
9404 PCI_ANY_ID, PCI_ANY_ID, },
9405 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
9406 PCI_ANY_ID, PCI_ANY_ID, },
9407 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
9408 PCI_ANY_ID, PCI_ANY_ID, },
9409 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
9410 PCI_ANY_ID, PCI_ANY_ID, },
9411 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
9412 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9413 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
9414 PCI_ANY_ID, PCI_ANY_ID, },
9415 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
9416 PCI_ANY_ID, PCI_ANY_ID, },
9417 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
9418 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e
JB		 9419 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
9420 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9421 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
9422 PCI_ANY_ID, PCI_ANY_ID, },
9423 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
9424 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e
JB		 9425 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
9426 PCI_ANY_ID, PCI_ANY_ID, },
9427 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
9428 PCI_ANY_ID, PCI_ANY_ID, },
9429 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
9430 PCI_ANY_ID, PCI_ANY_ID, },
84774a4d
JS		 9431 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
9432 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9433 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
9434 PCI_ANY_ID, PCI_ANY_ID, },
9435 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
9436 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e
JB		 9437 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
9438 PCI_ANY_ID, PCI_ANY_ID, },
9439 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
9440 PCI_ANY_ID, PCI_ANY_ID, },
9441 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
9442 PCI_ANY_ID, PCI_ANY_ID, },
9443 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
9444 PCI_ANY_ID, PCI_ANY_ID, },
9445 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
9446 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9447 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
9448 PCI_ANY_ID, PCI_ANY_ID, },
9449 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
9450 PCI_ANY_ID, PCI_ANY_ID, },
b87eab38
JS		 9451 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
9452 PCI_ANY_ID, PCI_ANY_ID, },
9453 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
9454 PCI_ANY_ID, PCI_ANY_ID, },
9455 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
9456 PCI_ANY_ID, PCI_ANY_ID, },
9457 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
9458 PCI_ANY_ID, PCI_ANY_ID, },
9459 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
9460 PCI_ANY_ID, PCI_ANY_ID, },
9461 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
9462 PCI_ANY_ID, PCI_ANY_ID, },
84774a4d
JS		 9463 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
9464 PCI_ANY_ID, PCI_ANY_ID, },
9465 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
9466 PCI_ANY_ID, PCI_ANY_ID, },
9467 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
9468 PCI_ANY_ID, PCI_ANY_ID, },
3772a991
JS		 9469 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
9470 PCI_ANY_ID, PCI_ANY_ID, },
a747c9ce
JS		 9471 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
9472 PCI_ANY_ID, PCI_ANY_ID, },
9473 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
6669f9bb 9474 PCI_ANY_ID, PCI_ANY_ID, },
98fc5dd9
JS		 9475 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
9476 PCI_ANY_ID, PCI_ANY_ID, },
085c647c
JS		 9477 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
9478 PCI_ANY_ID, PCI_ANY_ID, },
9479 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
9480 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e
JB		 9481 { 0 }
9482};
9483
9484MODULE_DEVICE_TABLE(pci, lpfc_id_table);
9485
8d63f375
LV		 9486static struct pci_error_handlers lpfc_err_handler = {
9487 .error_detected = lpfc_io_error_detected,
9488 .slot_reset = lpfc_io_slot_reset,
9489 .resume = lpfc_io_resume,
9490};
9491
dea3101e
JB		 9492static struct pci_driver lpfc_driver = {
9493 .name = LPFC_DRIVER_NAME,
9494 .id_table = lpfc_id_table,
9495 .probe = lpfc_pci_probe_one,
9496 .remove = __devexit_p(lpfc_pci_remove_one),
3a55b532 9497 .suspend = lpfc_pci_suspend_one,
3772a991 9498 .resume = lpfc_pci_resume_one,
2e0fef85 9499 .err_handler = &lpfc_err_handler,
dea3101e
JB		 9500};
9501
e59058c4 9502/**
3621a710 9503 * lpfc_init - lpfc module initialization routine
e59058c4
JS		 9504 *
9505 * This routine is to be invoked when the lpfc module is loaded into the
9506 * kernel. The special kernel macro module_init() is used to indicate the
9507 * role of this routine to the kernel as lpfc module entry point.
9508 *
9509 * Return codes
9510 * 0 - successful
9511 * -ENOMEM - FC attach transport failed
9512 * all others - failed
9513 */
dea3101e
JB		 9514static int __init
9515lpfc_init(void)
9516{
9517 int error = 0;
9518
9519 printk(LPFC_MODULE_DESC "\n");
c44ce173 9520 printk(LPFC_COPYRIGHT "\n");
dea3101e 9521
7ee5d43e
JS		 9522 if (lpfc_enable_npiv) {
9523 lpfc_transport_functions.vport_create = lpfc_vport_create;
9524 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
9525 }
dea3101e
JB		 9526 lpfc_transport_template =
9527 fc_attach_transport(&lpfc_transport_functions);
7ee5d43e 9528 if (lpfc_transport_template == NULL)
dea3101e 9529 return -ENOMEM;
7ee5d43e 9530 if (lpfc_enable_npiv) {
7ee5d43e 9531 lpfc_vport_transport_template =
98c9ea5c
JS		 9532 fc_attach_transport(&lpfc_vport_transport_functions);
9533 if (lpfc_vport_transport_template == NULL) {
9534 fc_release_transport(lpfc_transport_template);
7ee5d43e 9535 return -ENOMEM;
98c9ea5c 9536 }
7ee5d43e 9537 }
dea3101e 9538 error = pci_register_driver(&lpfc_driver);
92d7f7b0 9539 if (error) {
dea3101e 9540 fc_release_transport(lpfc_transport_template);
d7c255b2
JS		 9541 if (lpfc_enable_npiv)
9542 fc_release_transport(lpfc_vport_transport_template);
92d7f7b0 9543 }
dea3101e
JB		 9544
9545 return error;
9546}
9547
e59058c4 9548/**
3621a710 9549 * lpfc_exit - lpfc module removal routine
e59058c4
JS		 9550 *
9551 * This routine is invoked when the lpfc module is removed from the kernel.
9552 * The special kernel macro module_exit() is used to indicate the role of
9553 * this routine to the kernel as lpfc module exit point.
9554 */
dea3101e
JB		 9555static void __exit
9556lpfc_exit(void)
9557{
9558 pci_unregister_driver(&lpfc_driver);
9559 fc_release_transport(lpfc_transport_template);
7ee5d43e
JS		 9560 if (lpfc_enable_npiv)
9561 fc_release_transport(lpfc_vport_transport_template);
81301a9b 9562 if (_dump_buf_data) {
6a9c52cf
JS		 9563 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
9564 "_dump_buf_data at 0x%p\n",
81301a9b
JS		 9565 (1L << _dump_buf_data_order), _dump_buf_data);
9566 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
9567 }
9568
9569 if (_dump_buf_dif) {
6a9c52cf
JS		 9570 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
9571 "_dump_buf_dif at 0x%p\n",
81301a9b
JS		 9572 (1L << _dump_buf_dif_order), _dump_buf_dif);
9573 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
9574 }
dea3101e
JB		 9575}
9576
9577module_init(lpfc_init);
9578module_exit(lpfc_exit);
9579MODULE_LICENSE("GPL");
9580MODULE_DESCRIPTION(LPFC_MODULE_DESC);
9581MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
9582MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
kernel source for telekom puls (alcatel/mediatek)