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[SCSI] lpfc 8.3.26: Fix issues pertaining to SCSI/FC protocol.
[deliverable/linux.git] / drivers / scsi / lpfc / lpfc_init.c
CommitLineData
dea3101e 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
c44ce173 3 * Fibre Channel Host Bus Adapters. *
792581de 4 * Copyright (C) 2004-2011 Emulex. All rights reserved. *
c44ce173 5 * EMULEX and SLI are trademarks of Emulex. *
dea3101e 6 * www.emulex.com *
c44ce173 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
dea3101e 8 * *
9 * This program is free software; you can redistribute it and/or *
c44ce173
JSEC		 10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
dea3101e 20 *******************************************************************/
21
dea3101e 22#include <linux/blkdev.h>
23#include <linux/delay.h>
24#include <linux/dma-mapping.h>
25#include <linux/idr.h>
26#include <linux/interrupt.h>
27#include <linux/kthread.h>
28#include <linux/pci.h>
29#include <linux/spinlock.h>
92d7f7b0 30#include <linux/ctype.h>
0d878419 31#include <linux/aer.h>
5a0e3ad6 32#include <linux/slab.h>
52d52440 33#include <linux/firmware.h>
dea3101e 34
91886523 35#include <scsi/scsi.h>
dea3101e 36#include <scsi/scsi_device.h>
37#include <scsi/scsi_host.h>
38#include <scsi/scsi_transport_fc.h>
39
da0436e9 40#include "lpfc_hw4.h"
dea3101e 41#include "lpfc_hw.h"
42#include "lpfc_sli.h"
da0436e9 43#include "lpfc_sli4.h"
ea2151b4 44#include "lpfc_nl.h"
dea3101e 45#include "lpfc_disc.h"
46#include "lpfc_scsi.h"
47#include "lpfc.h"
48#include "lpfc_logmsg.h"
49#include "lpfc_crtn.h"
92d7f7b0 50#include "lpfc_vport.h"
dea3101e 51#include "lpfc_version.h"
52
81301a9b
JS		 53char *_dump_buf_data;
54unsigned long _dump_buf_data_order;
55char *_dump_buf_dif;
56unsigned long _dump_buf_dif_order;
57spinlock_t _dump_buf_lock;
58
dea3101e 59static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
60static int lpfc_post_rcv_buf(struct lpfc_hba *);
da0436e9
JS		 61static int lpfc_sli4_queue_create(struct lpfc_hba *);
62static void lpfc_sli4_queue_destroy(struct lpfc_hba *);
63static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
64static int lpfc_setup_endian_order(struct lpfc_hba *);
65static int lpfc_sli4_read_config(struct lpfc_hba *);
66static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
67static void lpfc_free_sgl_list(struct lpfc_hba *);
68static int lpfc_init_sgl_list(struct lpfc_hba *);
69static int lpfc_init_active_sgl_array(struct lpfc_hba *);
70static void lpfc_free_active_sgl(struct lpfc_hba *);
71static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
72static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
73static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
74static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
75static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
dea3101e 76
77static struct scsi_transport_template *lpfc_transport_template = NULL;
92d7f7b0 78static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
dea3101e 79static DEFINE_IDR(lpfc_hba_index);
80
e59058c4 81/**
3621a710 82 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
e59058c4
JS		 83 * @phba: pointer to lpfc hba data structure.
84 *
85 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
86 * mailbox command. It retrieves the revision information from the HBA and
87 * collects the Vital Product Data (VPD) about the HBA for preparing the
88 * configuration of the HBA.
89 *
90 * Return codes:
91 * 0 - success.
92 * -ERESTART - requests the SLI layer to reset the HBA and try again.
93 * Any other value - indicates an error.
94 **/
dea3101e 95int
2e0fef85 96lpfc_config_port_prep(struct lpfc_hba *phba)
dea3101e 97{
98 lpfc_vpd_t *vp = &phba->vpd;
99 int i = 0, rc;
100 LPFC_MBOXQ_t *pmb;
101 MAILBOX_t *mb;
102 char *lpfc_vpd_data = NULL;
103 uint16_t offset = 0;
104 static char licensed[56] =
105 "key unlock for use with gnu public licensed code only\0";
65a29c16 106 static int init_key = 1;
dea3101e 107
108 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
109 if (!pmb) {
2e0fef85 110 phba->link_state = LPFC_HBA_ERROR;
dea3101e 111 return -ENOMEM;
112 }
113
04c68496 114 mb = &pmb->u.mb;
2e0fef85 115 phba->link_state = LPFC_INIT_MBX_CMDS;
dea3101e 116
117 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
65a29c16
JS		 118 if (init_key) {
119 uint32_t *ptext = (uint32_t *) licensed;
dea3101e 120
65a29c16
JS		 121 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
122 *ptext = cpu_to_be32(*ptext);
123 init_key = 0;
124 }
dea3101e 125
126 lpfc_read_nv(phba, pmb);
127 memset((char*)mb->un.varRDnvp.rsvd3, 0,
128 sizeof (mb->un.varRDnvp.rsvd3));
129 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
130 sizeof (licensed));
131
132 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
133
134 if (rc != MBX_SUCCESS) {
ed957684 135 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
e8b62011 136 "0324 Config Port initialization "
dea3101e 137 "error, mbxCmd x%x READ_NVPARM, "
138 "mbxStatus x%x\n",
dea3101e 139 mb->mbxCommand, mb->mbxStatus);
140 mempool_free(pmb, phba->mbox_mem_pool);
141 return -ERESTART;
142 }
143 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
2e0fef85
JS		 144 sizeof(phba->wwnn));
145 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
146 sizeof(phba->wwpn));
dea3101e 147 }
148
92d7f7b0
JS		 149 phba->sli3_options = 0x0;
150
dea3101e 151 /* Setup and issue mailbox READ REV command */
152 lpfc_read_rev(phba, pmb);
153 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
154 if (rc != MBX_SUCCESS) {
ed957684 155 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 156 "0439 Adapter failed to init, mbxCmd x%x "
dea3101e 157 "READ_REV, mbxStatus x%x\n",
dea3101e 158 mb->mbxCommand, mb->mbxStatus);
159 mempool_free( pmb, phba->mbox_mem_pool);
160 return -ERESTART;
161 }
162
92d7f7b0 163
1de933f3
JSEC		 164 /*
165 * The value of rr must be 1 since the driver set the cv field to 1.
166 * This setting requires the FW to set all revision fields.
dea3101e 167 */
1de933f3 168 if (mb->un.varRdRev.rr == 0) {
dea3101e 169 vp->rev.rBit = 0;
1de933f3 170 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011
JS		 171 "0440 Adapter failed to init, READ_REV has "
172 "missing revision information.\n");
dea3101e 173 mempool_free(pmb, phba->mbox_mem_pool);
174 return -ERESTART;
dea3101e 175 }
176
495a714c
JS		 177 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
178 mempool_free(pmb, phba->mbox_mem_pool);
ed957684 179 return -EINVAL;
495a714c 180 }
ed957684 181
dea3101e 182 /* Save information as VPD data */
1de933f3 183 vp->rev.rBit = 1;
92d7f7b0 184 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
1de933f3
JSEC		 185 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
186 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
187 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
188 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
dea3101e 189 vp->rev.biuRev = mb->un.varRdRev.biuRev;
190 vp->rev.smRev = mb->un.varRdRev.smRev;
191 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
192 vp->rev.endecRev = mb->un.varRdRev.endecRev;
193 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
194 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
195 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
196 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
197 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
198 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
199
92d7f7b0
JS		 200 /* If the sli feature level is less then 9, we must
201 * tear down all RPIs and VPIs on link down if NPIV
202 * is enabled.
203 */
204 if (vp->rev.feaLevelHigh < 9)
205 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
206
dea3101e 207 if (lpfc_is_LC_HBA(phba->pcidev->device))
208 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
209 sizeof (phba->RandomData));
210
dea3101e 211 /* Get adapter VPD information */
dea3101e 212 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
213 if (!lpfc_vpd_data)
d7c255b2 214 goto out_free_mbox;
dea3101e 215 do {
a0c87cbd 216 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
dea3101e 217 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
218
219 if (rc != MBX_SUCCESS) {
220 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011 221 "0441 VPD not present on adapter, "
dea3101e 222 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
dea3101e 223 mb->mbxCommand, mb->mbxStatus);
74b72a59 224 mb->un.varDmp.word_cnt = 0;
dea3101e 225 }
04c68496
JS		 226 /* dump mem may return a zero when finished or we got a
227 * mailbox error, either way we are done.
228 */
229 if (mb->un.varDmp.word_cnt == 0)
230 break;
74b72a59
JW		 231 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
232 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
d7c255b2
JS		 233 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
234 lpfc_vpd_data + offset,
92d7f7b0 235 mb->un.varDmp.word_cnt);
dea3101e 236 offset += mb->un.varDmp.word_cnt;
74b72a59
JW		 237 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
238 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
dea3101e 239
240 kfree(lpfc_vpd_data);
dea3101e 241out_free_mbox:
242 mempool_free(pmb, phba->mbox_mem_pool);
243 return 0;
244}
245
e59058c4 246/**
3621a710 247 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
e59058c4
JS		 248 * @phba: pointer to lpfc hba data structure.
249 * @pmboxq: pointer to the driver internal queue element for mailbox command.
250 *
251 * This is the completion handler for driver's configuring asynchronous event
252 * mailbox command to the device. If the mailbox command returns successfully,
253 * it will set internal async event support flag to 1; otherwise, it will
254 * set internal async event support flag to 0.
255 **/
57127f15
JS		 256static void
257lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
258{
04c68496 259 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
57127f15
JS		 260 phba->temp_sensor_support = 1;
261 else
262 phba->temp_sensor_support = 0;
263 mempool_free(pmboxq, phba->mbox_mem_pool);
264 return;
265}
266
97207482 267/**
3621a710 268 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
97207482
JS		 269 * @phba: pointer to lpfc hba data structure.
270 * @pmboxq: pointer to the driver internal queue element for mailbox command.
271 *
272 * This is the completion handler for dump mailbox command for getting
273 * wake up parameters. When this command complete, the response contain
274 * Option rom version of the HBA. This function translate the version number
275 * into a human readable string and store it in OptionROMVersion.
276 **/
277static void
278lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
279{
280 struct prog_id *prg;
281 uint32_t prog_id_word;
282 char dist = ' ';
283 /* character array used for decoding dist type. */
284 char dist_char[] = "nabx";
285
04c68496 286 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
9f1e1b50 287 mempool_free(pmboxq, phba->mbox_mem_pool);
97207482 288 return;
9f1e1b50 289 }
97207482
JS		 290
291 prg = (struct prog_id *) &prog_id_word;
292
293 /* word 7 contain option rom version */
04c68496 294 prog_id_word = pmboxq->u.mb.un.varWords[7];
97207482
JS		 295
296 /* Decode the Option rom version word to a readable string */
297 if (prg->dist < 4)
298 dist = dist_char[prg->dist];
299
300 if ((prg->dist == 3) && (prg->num == 0))
301 sprintf(phba->OptionROMVersion, "%d.%d%d",
302 prg->ver, prg->rev, prg->lev);
303 else
304 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
305 prg->ver, prg->rev, prg->lev,
306 dist, prg->num);
9f1e1b50 307 mempool_free(pmboxq, phba->mbox_mem_pool);
97207482
JS		 308 return;
309}
310
0558056c
JS		 311/**
312 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
313 * cfg_soft_wwnn, cfg_soft_wwpn
314 * @vport: pointer to lpfc vport data structure.
315 *
316 *
317 * Return codes
318 * None.
319 **/
320void
321lpfc_update_vport_wwn(struct lpfc_vport *vport)
322{
323 /* If the soft name exists then update it using the service params */
324 if (vport->phba->cfg_soft_wwnn)
325 u64_to_wwn(vport->phba->cfg_soft_wwnn,
326 vport->fc_sparam.nodeName.u.wwn);
327 if (vport->phba->cfg_soft_wwpn)
328 u64_to_wwn(vport->phba->cfg_soft_wwpn,
329 vport->fc_sparam.portName.u.wwn);
330
331 /*
332 * If the name is empty or there exists a soft name
333 * then copy the service params name, otherwise use the fc name
334 */
335 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
336 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
337 sizeof(struct lpfc_name));
338 else
339 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
340 sizeof(struct lpfc_name));
341
342 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
343 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
344 sizeof(struct lpfc_name));
345 else
346 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
347 sizeof(struct lpfc_name));
348}
349
e59058c4 350/**
3621a710 351 * lpfc_config_port_post - Perform lpfc initialization after config port
e59058c4
JS		 352 * @phba: pointer to lpfc hba data structure.
353 *
354 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
355 * command call. It performs all internal resource and state setups on the
356 * port: post IOCB buffers, enable appropriate host interrupt attentions,
357 * ELS ring timers, etc.
358 *
359 * Return codes
360 * 0 - success.
361 * Any other value - error.
362 **/
dea3101e 363int
2e0fef85 364lpfc_config_port_post(struct lpfc_hba *phba)
dea3101e 365{
2e0fef85 366 struct lpfc_vport *vport = phba->pport;
a257bf90 367 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 368 LPFC_MBOXQ_t *pmb;
369 MAILBOX_t *mb;
370 struct lpfc_dmabuf *mp;
371 struct lpfc_sli *psli = &phba->sli;
372 uint32_t status, timeout;
2e0fef85
JS		 373 int i, j;
374 int rc;
dea3101e 375
7af67051
JS		 376 spin_lock_irq(&phba->hbalock);
377 /*
378 * If the Config port completed correctly the HBA is not
379 * over heated any more.
380 */
381 if (phba->over_temp_state == HBA_OVER_TEMP)
382 phba->over_temp_state = HBA_NORMAL_TEMP;
383 spin_unlock_irq(&phba->hbalock);
384
dea3101e 385 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
386 if (!pmb) {
2e0fef85 387 phba->link_state = LPFC_HBA_ERROR;
dea3101e 388 return -ENOMEM;
389 }
04c68496 390 mb = &pmb->u.mb;
dea3101e 391
dea3101e 392 /* Get login parameters for NID. */
9f1177a3
JS		 393 rc = lpfc_read_sparam(phba, pmb, 0);
394 if (rc) {
395 mempool_free(pmb, phba->mbox_mem_pool);
396 return -ENOMEM;
397 }
398
ed957684 399 pmb->vport = vport;
dea3101e 400 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
ed957684 401 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 402 "0448 Adapter failed init, mbxCmd x%x "
dea3101e 403 "READ_SPARM mbxStatus x%x\n",
dea3101e 404 mb->mbxCommand, mb->mbxStatus);
2e0fef85 405 phba->link_state = LPFC_HBA_ERROR;
dea3101e 406 mp = (struct lpfc_dmabuf *) pmb->context1;
9f1177a3 407 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 408 lpfc_mbuf_free(phba, mp->virt, mp->phys);
409 kfree(mp);
410 return -EIO;
411 }
412
413 mp = (struct lpfc_dmabuf *) pmb->context1;
414
2e0fef85 415 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
dea3101e 416 lpfc_mbuf_free(phba, mp->virt, mp->phys);
417 kfree(mp);
418 pmb->context1 = NULL;
0558056c 419 lpfc_update_vport_wwn(vport);
a257bf90
JS		 420
421 /* Update the fc_host data structures with new wwn. */
422 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
423 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
21e9a0a5 424 fc_host_max_npiv_vports(shost) = phba->max_vpi;
a257bf90 425
dea3101e 426 /* If no serial number in VPD data, use low 6 bytes of WWNN */
427 /* This should be consolidated into parse_vpd ? - mr */
428 if (phba->SerialNumber[0] == 0) {
429 uint8_t *outptr;
430
2e0fef85 431 outptr = &vport->fc_nodename.u.s.IEEE[0];
dea3101e 432 for (i = 0; i < 12; i++) {
433 status = *outptr++;
434 j = ((status & 0xf0) >> 4);
435 if (j <= 9)
436 phba->SerialNumber[i] =
437 (char)((uint8_t) 0x30 + (uint8_t) j);
438 else
439 phba->SerialNumber[i] =
440 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
441 i++;
442 j = (status & 0xf);
443 if (j <= 9)
444 phba->SerialNumber[i] =
445 (char)((uint8_t) 0x30 + (uint8_t) j);
446 else
447 phba->SerialNumber[i] =
448 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
449 }
450 }
451
dea3101e 452 lpfc_read_config(phba, pmb);
ed957684 453 pmb->vport = vport;
dea3101e 454 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
ed957684 455 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 456 "0453 Adapter failed to init, mbxCmd x%x "
dea3101e 457 "READ_CONFIG, mbxStatus x%x\n",
dea3101e 458 mb->mbxCommand, mb->mbxStatus);
2e0fef85 459 phba->link_state = LPFC_HBA_ERROR;
dea3101e 460 mempool_free( pmb, phba->mbox_mem_pool);
461 return -EIO;
462 }
463
a0c87cbd
JS		 464 /* Check if the port is disabled */
465 lpfc_sli_read_link_ste(phba);
466
dea3101e 467 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
468 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
469 phba->cfg_hba_queue_depth =
f1126688
JS		 470 (mb->un.varRdConfig.max_xri + 1) -
471 lpfc_sli4_get_els_iocb_cnt(phba);
dea3101e 472
473 phba->lmt = mb->un.varRdConfig.lmt;
74b72a59
JW		 474
475 /* Get the default values for Model Name and Description */
476 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
477
76a95d75
JS		 478 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_16G)
479 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G)
74b72a59 480 && !(phba->lmt & LMT_1Gb))
76a95d75 481 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G)
74b72a59 482 && !(phba->lmt & LMT_2Gb))
76a95d75 483 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G)
74b72a59 484 && !(phba->lmt & LMT_4Gb))
76a95d75 485 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G)
74b72a59 486 && !(phba->lmt & LMT_8Gb))
76a95d75
JS		 487 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G)
488 && !(phba->lmt & LMT_10Gb))
489 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G)
490 && !(phba->lmt & LMT_16Gb))) {
74b72a59 491 /* Reset link speed to auto */
ab56dc2e 492 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
e8b62011 493 "1302 Invalid speed for this board: "
dea3101e 494 "Reset link speed to auto: x%x\n",
dea3101e 495 phba->cfg_link_speed);
76a95d75 496 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
dea3101e 497 }
498
2e0fef85 499 phba->link_state = LPFC_LINK_DOWN;
dea3101e 500
0b727fea 501 /* Only process IOCBs on ELS ring till hba_state is READY */
a4bc3379
JS		 502 if (psli->ring[psli->extra_ring].cmdringaddr)
503 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
dea3101e 504 if (psli->ring[psli->fcp_ring].cmdringaddr)
505 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
506 if (psli->ring[psli->next_ring].cmdringaddr)
507 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
508
509 /* Post receive buffers for desired rings */
ed957684
JS		 510 if (phba->sli_rev != 3)
511 lpfc_post_rcv_buf(phba);
dea3101e 512
9399627f
JS		 513 /*
514 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
515 */
516 if (phba->intr_type == MSIX) {
517 rc = lpfc_config_msi(phba, pmb);
518 if (rc) {
519 mempool_free(pmb, phba->mbox_mem_pool);
520 return -EIO;
521 }
522 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
523 if (rc != MBX_SUCCESS) {
524 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
525 "0352 Config MSI mailbox command "
526 "failed, mbxCmd x%x, mbxStatus x%x\n",
04c68496
JS		 527 pmb->u.mb.mbxCommand,
528 pmb->u.mb.mbxStatus);
9399627f
JS		 529 mempool_free(pmb, phba->mbox_mem_pool);
530 return -EIO;
531 }
532 }
533
04c68496 534 spin_lock_irq(&phba->hbalock);
9399627f
JS		 535 /* Initialize ERATT handling flag */
536 phba->hba_flag &= ~HBA_ERATT_HANDLED;
537
dea3101e 538 /* Enable appropriate host interrupts */
9940b97b
JS		 539 if (lpfc_readl(phba->HCregaddr, &status)) {
540 spin_unlock_irq(&phba->hbalock);
541 return -EIO;
542 }
dea3101e 543 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
544 if (psli->num_rings > 0)
545 status |= HC_R0INT_ENA;
546 if (psli->num_rings > 1)
547 status |= HC_R1INT_ENA;
548 if (psli->num_rings > 2)
549 status |= HC_R2INT_ENA;
550 if (psli->num_rings > 3)
551 status |= HC_R3INT_ENA;
552
875fbdfe
JSEC		 553 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
554 (phba->cfg_poll & DISABLE_FCP_RING_INT))
9399627f 555 status &= ~(HC_R0INT_ENA);
875fbdfe 556
dea3101e 557 writel(status, phba->HCregaddr);
558 readl(phba->HCregaddr); /* flush */
2e0fef85 559 spin_unlock_irq(&phba->hbalock);
dea3101e 560
9399627f
JS		 561 /* Set up ring-0 (ELS) timer */
562 timeout = phba->fc_ratov * 2;
2e0fef85 563 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
9399627f 564 /* Set up heart beat (HB) timer */
858c9f6c
JS		 565 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
566 phba->hb_outstanding = 0;
567 phba->last_completion_time = jiffies;
9399627f
JS		 568 /* Set up error attention (ERATT) polling timer */
569 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
dea3101e 570
a0c87cbd
JS		 571 if (phba->hba_flag & LINK_DISABLED) {
572 lpfc_printf_log(phba,
573 KERN_ERR, LOG_INIT,
574 "2598 Adapter Link is disabled.\n");
575 lpfc_down_link(phba, pmb);
576 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
577 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
578 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
579 lpfc_printf_log(phba,
580 KERN_ERR, LOG_INIT,
581 "2599 Adapter failed to issue DOWN_LINK"
582 " mbox command rc 0x%x\n", rc);
583
584 mempool_free(pmb, phba->mbox_mem_pool);
585 return -EIO;
586 }
e40a02c1 587 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
a0c87cbd
JS		 588 lpfc_init_link(phba, pmb, phba->cfg_topology,
589 phba->cfg_link_speed);
590 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
591 lpfc_set_loopback_flag(phba);
592 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
593 if (rc != MBX_SUCCESS) {
594 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 595 "0454 Adapter failed to init, mbxCmd x%x "
dea3101e 596 "INIT_LINK, mbxStatus x%x\n",
dea3101e 597 mb->mbxCommand, mb->mbxStatus);
598
a0c87cbd
JS		 599 /* Clear all interrupt enable conditions */
600 writel(0, phba->HCregaddr);
601 readl(phba->HCregaddr); /* flush */
602 /* Clear all pending interrupts */
603 writel(0xffffffff, phba->HAregaddr);
604 readl(phba->HAregaddr); /* flush */
a0c87cbd
JS		 605 phba->link_state = LPFC_HBA_ERROR;
606 if (rc != MBX_BUSY)
607 mempool_free(pmb, phba->mbox_mem_pool);
608 return -EIO;
609 }
dea3101e 610 }
611 /* MBOX buffer will be freed in mbox compl */
57127f15 612 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9f1177a3
JS		 613 if (!pmb) {
614 phba->link_state = LPFC_HBA_ERROR;
615 return -ENOMEM;
616 }
617
57127f15
JS		 618 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
619 pmb->mbox_cmpl = lpfc_config_async_cmpl;
620 pmb->vport = phba->pport;
621 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
dea3101e 622
57127f15
JS		 623 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
624 lpfc_printf_log(phba,
625 KERN_ERR,
626 LOG_INIT,
627 "0456 Adapter failed to issue "
e4e74273 628 "ASYNCEVT_ENABLE mbox status x%x\n",
57127f15
JS		 629 rc);
630 mempool_free(pmb, phba->mbox_mem_pool);
631 }
97207482
JS		 632
633 /* Get Option rom version */
634 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9f1177a3
JS		 635 if (!pmb) {
636 phba->link_state = LPFC_HBA_ERROR;
637 return -ENOMEM;
638 }
639
97207482
JS		 640 lpfc_dump_wakeup_param(phba, pmb);
641 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
642 pmb->vport = phba->pport;
643 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
644
645 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
646 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
e4e74273 647 "to get Option ROM version status x%x\n", rc);
97207482
JS		 648 mempool_free(pmb, phba->mbox_mem_pool);
649 }
650
d7c255b2 651 return 0;
ce8b3ce5
JS		 652}
653
84d1b006
JS		 654/**
655 * lpfc_hba_init_link - Initialize the FC link
656 * @phba: pointer to lpfc hba data structure.
6e7288d9 657 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
84d1b006
JS		 658 *
659 * This routine will issue the INIT_LINK mailbox command call.
660 * It is available to other drivers through the lpfc_hba data
661 * structure for use as a delayed link up mechanism with the
662 * module parameter lpfc_suppress_link_up.
663 *
664 * Return code
665 * 0 - success
666 * Any other value - error
667 **/
668int
6e7288d9 669lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
84d1b006
JS		 670{
671 struct lpfc_vport *vport = phba->pport;
672 LPFC_MBOXQ_t *pmb;
673 MAILBOX_t *mb;
674 int rc;
675
676 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
677 if (!pmb) {
678 phba->link_state = LPFC_HBA_ERROR;
679 return -ENOMEM;
680 }
681 mb = &pmb->u.mb;
682 pmb->vport = vport;
683
76a95d75 684 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
84d1b006
JS		 685 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
686 lpfc_set_loopback_flag(phba);
6e7288d9 687 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
76a95d75 688 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
84d1b006
JS		 689 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
690 "0498 Adapter failed to init, mbxCmd x%x "
691 "INIT_LINK, mbxStatus x%x\n",
692 mb->mbxCommand, mb->mbxStatus);
76a95d75
JS		 693 if (phba->sli_rev <= LPFC_SLI_REV3) {
694 /* Clear all interrupt enable conditions */
695 writel(0, phba->HCregaddr);
696 readl(phba->HCregaddr); /* flush */
697 /* Clear all pending interrupts */
698 writel(0xffffffff, phba->HAregaddr);
699 readl(phba->HAregaddr); /* flush */
700 }
84d1b006 701 phba->link_state = LPFC_HBA_ERROR;
6e7288d9 702 if (rc != MBX_BUSY || flag == MBX_POLL)
84d1b006
JS		 703 mempool_free(pmb, phba->mbox_mem_pool);
704 return -EIO;
705 }
e40a02c1 706 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
6e7288d9
JS		 707 if (flag == MBX_POLL)
708 mempool_free(pmb, phba->mbox_mem_pool);
84d1b006
JS		 709
710 return 0;
711}
712
713/**
714 * lpfc_hba_down_link - this routine downs the FC link
6e7288d9
JS		 715 * @phba: pointer to lpfc hba data structure.
716 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
84d1b006
JS		 717 *
718 * This routine will issue the DOWN_LINK mailbox command call.
719 * It is available to other drivers through the lpfc_hba data
720 * structure for use to stop the link.
721 *
722 * Return code
723 * 0 - success
724 * Any other value - error
725 **/
726int
6e7288d9 727lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
84d1b006
JS		 728{
729 LPFC_MBOXQ_t *pmb;
730 int rc;
731
732 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
733 if (!pmb) {
734 phba->link_state = LPFC_HBA_ERROR;
735 return -ENOMEM;
736 }
737
738 lpfc_printf_log(phba,
739 KERN_ERR, LOG_INIT,
740 "0491 Adapter Link is disabled.\n");
741 lpfc_down_link(phba, pmb);
742 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
6e7288d9 743 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
84d1b006
JS		 744 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
745 lpfc_printf_log(phba,
746 KERN_ERR, LOG_INIT,
747 "2522 Adapter failed to issue DOWN_LINK"
748 " mbox command rc 0x%x\n", rc);
749
750 mempool_free(pmb, phba->mbox_mem_pool);
751 return -EIO;
752 }
6e7288d9
JS		 753 if (flag == MBX_POLL)
754 mempool_free(pmb, phba->mbox_mem_pool);
755
84d1b006
JS		 756 return 0;
757}
758
e59058c4 759/**
3621a710 760 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
e59058c4
JS		 761 * @phba: pointer to lpfc HBA data structure.
762 *
763 * This routine will do LPFC uninitialization before the HBA is reset when
764 * bringing down the SLI Layer.
765 *
766 * Return codes
767 * 0 - success.
768 * Any other value - error.
769 **/
dea3101e 770int
2e0fef85 771lpfc_hba_down_prep(struct lpfc_hba *phba)
dea3101e 772{
1b32f6aa
JS		 773 struct lpfc_vport **vports;
774 int i;
3772a991
JS		 775
776 if (phba->sli_rev <= LPFC_SLI_REV3) {
777 /* Disable interrupts */
778 writel(0, phba->HCregaddr);
779 readl(phba->HCregaddr); /* flush */
780 }
dea3101e 781
1b32f6aa
JS		 782 if (phba->pport->load_flag & FC_UNLOADING)
783 lpfc_cleanup_discovery_resources(phba->pport);
784 else {
785 vports = lpfc_create_vport_work_array(phba);
786 if (vports != NULL)
3772a991
JS		 787 for (i = 0; i <= phba->max_vports &&
788 vports[i] != NULL; i++)
1b32f6aa
JS		 789 lpfc_cleanup_discovery_resources(vports[i]);
790 lpfc_destroy_vport_work_array(phba, vports);
7f5f3d0d
JS		 791 }
792 return 0;
dea3101e 793}
794
e59058c4 795/**
3772a991 796 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
e59058c4
JS		 797 * @phba: pointer to lpfc HBA data structure.
798 *
799 * This routine will do uninitialization after the HBA is reset when bring
800 * down the SLI Layer.
801 *
802 * Return codes
af901ca1 803 * 0 - success.
e59058c4
JS		 804 * Any other value - error.
805 **/
3772a991
JS		 806static int
807lpfc_hba_down_post_s3(struct lpfc_hba *phba)
41415862
JW		 808{
809 struct lpfc_sli *psli = &phba->sli;
810 struct lpfc_sli_ring *pring;
811 struct lpfc_dmabuf *mp, *next_mp;
09372820 812 LIST_HEAD(completions);
41415862
JW		 813 int i;
814
92d7f7b0
JS		 815 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
816 lpfc_sli_hbqbuf_free_all(phba);
817 else {
818 /* Cleanup preposted buffers on the ELS ring */
819 pring = &psli->ring[LPFC_ELS_RING];
820 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
821 list_del(&mp->list);
822 pring->postbufq_cnt--;
823 lpfc_mbuf_free(phba, mp->virt, mp->phys);
824 kfree(mp);
825 }
41415862
JW		 826 }
827
09372820 828 spin_lock_irq(&phba->hbalock);
41415862
JW		 829 for (i = 0; i < psli->num_rings; i++) {
830 pring = &psli->ring[i];
09372820
JS		 831
832 /* At this point in time the HBA is either reset or DOA. Either
833 * way, nothing should be on txcmplq as it will NEVER complete.
834 */
835 list_splice_init(&pring->txcmplq, &completions);
836 pring->txcmplq_cnt = 0;
837 spin_unlock_irq(&phba->hbalock);
838
a257bf90
JS		 839 /* Cancel all the IOCBs from the completions list */
840 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
841 IOERR_SLI_ABORTED);
09372820 842
41415862 843 lpfc_sli_abort_iocb_ring(phba, pring);
09372820 844 spin_lock_irq(&phba->hbalock);
41415862 845 }
09372820 846 spin_unlock_irq(&phba->hbalock);
41415862
JW		 847
848 return 0;
849}
5af5eee7 850
da0436e9
JS		 851/**
852 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
853 * @phba: pointer to lpfc HBA data structure.
854 *
855 * This routine will do uninitialization after the HBA is reset when bring
856 * down the SLI Layer.
857 *
858 * Return codes
af901ca1 859 * 0 - success.
da0436e9
JS		 860 * Any other value - error.
861 **/
862static int
863lpfc_hba_down_post_s4(struct lpfc_hba *phba)
864{
865 struct lpfc_scsi_buf *psb, *psb_next;
866 LIST_HEAD(aborts);
867 int ret;
868 unsigned long iflag = 0;
0f65ff68
JS		 869 struct lpfc_sglq *sglq_entry = NULL;
870
da0436e9
JS		 871 ret = lpfc_hba_down_post_s3(phba);
872 if (ret)
873 return ret;
874 /* At this point in time the HBA is either reset or DOA. Either
875 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
876 * on the lpfc_sgl_list so that it can either be freed if the
877 * driver is unloading or reposted if the driver is restarting
878 * the port.
879 */
880 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
881 /* scsl_buf_list */
882 /* abts_sgl_list_lock required because worker thread uses this
883 * list.
884 */
885 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
0f65ff68
JS		 886 list_for_each_entry(sglq_entry,
887 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
888 sglq_entry->state = SGL_FREED;
889
da0436e9
JS		 890 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
891 &phba->sli4_hba.lpfc_sgl_list);
892 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
893 /* abts_scsi_buf_list_lock required because worker thread uses this
894 * list.
895 */
896 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
897 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
898 &aborts);
899 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
900 spin_unlock_irq(&phba->hbalock);
901
902 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
903 psb->pCmd = NULL;
904 psb->status = IOSTAT_SUCCESS;
905 }
906 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
907 list_splice(&aborts, &phba->lpfc_scsi_buf_list);
908 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
909 return 0;
910}
911
912/**
913 * lpfc_hba_down_post - Wrapper func for hba down post routine
914 * @phba: pointer to lpfc HBA data structure.
915 *
916 * This routine wraps the actual SLI3 or SLI4 routine for performing
917 * uninitialization after the HBA is reset when bring down the SLI Layer.
918 *
919 * Return codes
af901ca1 920 * 0 - success.
da0436e9
JS		 921 * Any other value - error.
922 **/
923int
924lpfc_hba_down_post(struct lpfc_hba *phba)
925{
926 return (*phba->lpfc_hba_down_post)(phba);
927}
41415862 928
e59058c4 929/**
3621a710 930 * lpfc_hb_timeout - The HBA-timer timeout handler
e59058c4
JS		 931 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
932 *
933 * This is the HBA-timer timeout handler registered to the lpfc driver. When
934 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
935 * work-port-events bitmap and the worker thread is notified. This timeout
936 * event will be used by the worker thread to invoke the actual timeout
937 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
938 * be performed in the timeout handler and the HBA timeout event bit shall
939 * be cleared by the worker thread after it has taken the event bitmap out.
940 **/
a6ababd2 941static void
858c9f6c
JS		 942lpfc_hb_timeout(unsigned long ptr)
943{
944 struct lpfc_hba *phba;
5e9d9b82 945 uint32_t tmo_posted;
858c9f6c
JS		 946 unsigned long iflag;
947
948 phba = (struct lpfc_hba *)ptr;
9399627f
JS		 949
950 /* Check for heart beat timeout conditions */
858c9f6c 951 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
5e9d9b82
JS		 952 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
953 if (!tmo_posted)
858c9f6c
JS		 954 phba->pport->work_port_events |= WORKER_HB_TMO;
955 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
956
9399627f 957 /* Tell the worker thread there is work to do */
5e9d9b82
JS		 958 if (!tmo_posted)
959 lpfc_worker_wake_up(phba);
858c9f6c
JS		 960 return;
961}
962
19ca7609
JS		 963/**
964 * lpfc_rrq_timeout - The RRQ-timer timeout handler
965 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
966 *
967 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
968 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
969 * work-port-events bitmap and the worker thread is notified. This timeout
970 * event will be used by the worker thread to invoke the actual timeout
971 * handler routine, lpfc_rrq_handler. Any periodical operations will
972 * be performed in the timeout handler and the RRQ timeout event bit shall
973 * be cleared by the worker thread after it has taken the event bitmap out.
974 **/
975static void
976lpfc_rrq_timeout(unsigned long ptr)
977{
978 struct lpfc_hba *phba;
19ca7609
JS		 979 unsigned long iflag;
980
981 phba = (struct lpfc_hba *)ptr;
982 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1151e3ec 983 phba->hba_flag |= HBA_RRQ_ACTIVE;
19ca7609 984 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1151e3ec 985 lpfc_worker_wake_up(phba);
19ca7609
JS		 986}
987
e59058c4 988/**
3621a710 989 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
e59058c4
JS		 990 * @phba: pointer to lpfc hba data structure.
991 * @pmboxq: pointer to the driver internal queue element for mailbox command.
992 *
993 * This is the callback function to the lpfc heart-beat mailbox command.
994 * If configured, the lpfc driver issues the heart-beat mailbox command to
995 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
996 * heart-beat mailbox command is issued, the driver shall set up heart-beat
997 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
998 * heart-beat outstanding state. Once the mailbox command comes back and
999 * no error conditions detected, the heart-beat mailbox command timer is
1000 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1001 * state is cleared for the next heart-beat. If the timer expired with the
1002 * heart-beat outstanding state set, the driver will put the HBA offline.
1003 **/
858c9f6c
JS		 1004static void
1005lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1006{
1007 unsigned long drvr_flag;
1008
1009 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1010 phba->hb_outstanding = 0;
1011 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1012
9399627f 1013 /* Check and reset heart-beat timer is necessary */
858c9f6c
JS		 1014 mempool_free(pmboxq, phba->mbox_mem_pool);
1015 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1016 !(phba->link_state == LPFC_HBA_ERROR) &&
51ef4c26 1017 !(phba->pport->load_flag & FC_UNLOADING))
858c9f6c
JS		 1018 mod_timer(&phba->hb_tmofunc,
1019 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1020 return;
1021}
1022
e59058c4 1023/**
3621a710 1024 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
e59058c4
JS		 1025 * @phba: pointer to lpfc hba data structure.
1026 *
1027 * This is the actual HBA-timer timeout handler to be invoked by the worker
1028 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1029 * handler performs any periodic operations needed for the device. If such
1030 * periodic event has already been attended to either in the interrupt handler
1031 * or by processing slow-ring or fast-ring events within the HBA-timer
1032 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1033 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1034 * is configured and there is no heart-beat mailbox command outstanding, a
1035 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1036 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1037 * to offline.
1038 **/
858c9f6c
JS		 1039void
1040lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1041{
45ed1190 1042 struct lpfc_vport **vports;
858c9f6c 1043 LPFC_MBOXQ_t *pmboxq;
0ff10d46 1044 struct lpfc_dmabuf *buf_ptr;
45ed1190 1045 int retval, i;
858c9f6c 1046 struct lpfc_sli *psli = &phba->sli;
0ff10d46 1047 LIST_HEAD(completions);
858c9f6c 1048
45ed1190
JS		 1049 vports = lpfc_create_vport_work_array(phba);
1050 if (vports != NULL)
1051 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1052 lpfc_rcv_seq_check_edtov(vports[i]);
1053 lpfc_destroy_vport_work_array(phba, vports);
1054
858c9f6c 1055 if ((phba->link_state == LPFC_HBA_ERROR) ||
51ef4c26 1056 (phba->pport->load_flag & FC_UNLOADING) ||
858c9f6c
JS		 1057 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1058 return;
1059
1060 spin_lock_irq(&phba->pport->work_port_lock);
858c9f6c
JS		 1061
1062 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1063 jiffies)) {
1064 spin_unlock_irq(&phba->pport->work_port_lock);
1065 if (!phba->hb_outstanding)
1066 mod_timer(&phba->hb_tmofunc,
1067 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1068 else
1069 mod_timer(&phba->hb_tmofunc,
1070 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1071 return;
1072 }
1073 spin_unlock_irq(&phba->pport->work_port_lock);
1074
0ff10d46
JS		 1075 if (phba->elsbuf_cnt &&
1076 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1077 spin_lock_irq(&phba->hbalock);
1078 list_splice_init(&phba->elsbuf, &completions);
1079 phba->elsbuf_cnt = 0;
1080 phba->elsbuf_prev_cnt = 0;
1081 spin_unlock_irq(&phba->hbalock);
1082
1083 while (!list_empty(&completions)) {
1084 list_remove_head(&completions, buf_ptr,
1085 struct lpfc_dmabuf, list);
1086 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1087 kfree(buf_ptr);
1088 }
1089 }
1090 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1091
858c9f6c 1092 /* If there is no heart beat outstanding, issue a heartbeat command */
13815c83
JS		 1093 if (phba->cfg_enable_hba_heartbeat) {
1094 if (!phba->hb_outstanding) {
bc73905a
JS		 1095 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1096 (list_empty(&psli->mboxq))) {
1097 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1098 GFP_KERNEL);
1099 if (!pmboxq) {
1100 mod_timer(&phba->hb_tmofunc,
1101 jiffies +
1102 HZ * LPFC_HB_MBOX_INTERVAL);
1103 return;
1104 }
1105
1106 lpfc_heart_beat(phba, pmboxq);
1107 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1108 pmboxq->vport = phba->pport;
1109 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1110 MBX_NOWAIT);
1111
1112 if (retval != MBX_BUSY &&
1113 retval != MBX_SUCCESS) {
1114 mempool_free(pmboxq,
1115 phba->mbox_mem_pool);
1116 mod_timer(&phba->hb_tmofunc,
1117 jiffies +
1118 HZ * LPFC_HB_MBOX_INTERVAL);
1119 return;
1120 }
1121 phba->skipped_hb = 0;
1122 phba->hb_outstanding = 1;
1123 } else if (time_before_eq(phba->last_completion_time,
1124 phba->skipped_hb)) {
1125 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1126 "2857 Last completion time not "
1127 " updated in %d ms\n",
1128 jiffies_to_msecs(jiffies
1129 - phba->last_completion_time));
1130 } else
1131 phba->skipped_hb = jiffies;
1132
858c9f6c 1133 mod_timer(&phba->hb_tmofunc,
13815c83 1134 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
858c9f6c 1135 return;
13815c83
JS		 1136 } else {
1137 /*
1138 * If heart beat timeout called with hb_outstanding set
dcf2a4e0
JS		 1139 * we need to give the hb mailbox cmd a chance to
1140 * complete or TMO.
13815c83 1141 */
dcf2a4e0
JS		 1142 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1143 "0459 Adapter heartbeat still out"
1144 "standing:last compl time was %d ms.\n",
1145 jiffies_to_msecs(jiffies
1146 - phba->last_completion_time));
1147 mod_timer(&phba->hb_tmofunc,
1148 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
858c9f6c 1149 }
858c9f6c
JS		 1150 }
1151}
1152
e59058c4 1153/**
3621a710 1154 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
e59058c4
JS		 1155 * @phba: pointer to lpfc hba data structure.
1156 *
1157 * This routine is called to bring the HBA offline when HBA hardware error
1158 * other than Port Error 6 has been detected.
1159 **/
09372820
JS		 1160static void
1161lpfc_offline_eratt(struct lpfc_hba *phba)
1162{
1163 struct lpfc_sli *psli = &phba->sli;
1164
1165 spin_lock_irq(&phba->hbalock);
f4b4c68f 1166 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
09372820
JS		 1167 spin_unlock_irq(&phba->hbalock);
1168 lpfc_offline_prep(phba);
1169
1170 lpfc_offline(phba);
1171 lpfc_reset_barrier(phba);
f4b4c68f 1172 spin_lock_irq(&phba->hbalock);
09372820 1173 lpfc_sli_brdreset(phba);
f4b4c68f 1174 spin_unlock_irq(&phba->hbalock);
09372820
JS		 1175 lpfc_hba_down_post(phba);
1176 lpfc_sli_brdready(phba, HS_MBRDY);
1177 lpfc_unblock_mgmt_io(phba);
1178 phba->link_state = LPFC_HBA_ERROR;
1179 return;
1180}
1181
da0436e9
JS		 1182/**
1183 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1184 * @phba: pointer to lpfc hba data structure.
1185 *
1186 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1187 * other than Port Error 6 has been detected.
1188 **/
1189static void
1190lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1191{
1192 lpfc_offline_prep(phba);
1193 lpfc_offline(phba);
1194 lpfc_sli4_brdreset(phba);
1195 lpfc_hba_down_post(phba);
1196 lpfc_sli4_post_status_check(phba);
1197 lpfc_unblock_mgmt_io(phba);
1198 phba->link_state = LPFC_HBA_ERROR;
1199}
1200
a257bf90
JS		 1201/**
1202 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1203 * @phba: pointer to lpfc hba data structure.
1204 *
1205 * This routine is invoked to handle the deferred HBA hardware error
1206 * conditions. This type of error is indicated by HBA by setting ER1
1207 * and another ER bit in the host status register. The driver will
1208 * wait until the ER1 bit clears before handling the error condition.
1209 **/
1210static void
1211lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1212{
1213 uint32_t old_host_status = phba->work_hs;
1214 struct lpfc_sli_ring *pring;
1215 struct lpfc_sli *psli = &phba->sli;
1216
f4b4c68f
JS		 1217 /* If the pci channel is offline, ignore possible errors,
1218 * since we cannot communicate with the pci card anyway.
1219 */
1220 if (pci_channel_offline(phba->pcidev)) {
1221 spin_lock_irq(&phba->hbalock);
1222 phba->hba_flag &= ~DEFER_ERATT;
1223 spin_unlock_irq(&phba->hbalock);
1224 return;
1225 }
1226
a257bf90
JS		 1227 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1228 "0479 Deferred Adapter Hardware Error "
1229 "Data: x%x x%x x%x\n",
1230 phba->work_hs,
1231 phba->work_status[0], phba->work_status[1]);
1232
1233 spin_lock_irq(&phba->hbalock);
f4b4c68f 1234 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
a257bf90
JS		 1235 spin_unlock_irq(&phba->hbalock);
1236
1237
1238 /*
1239 * Firmware stops when it triggred erratt. That could cause the I/Os
1240 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1241 * SCSI layer retry it after re-establishing link.
1242 */
1243 pring = &psli->ring[psli->fcp_ring];
1244 lpfc_sli_abort_iocb_ring(phba, pring);
1245
1246 /*
1247 * There was a firmware error. Take the hba offline and then
1248 * attempt to restart it.
1249 */
1250 lpfc_offline_prep(phba);
1251 lpfc_offline(phba);
1252
1253 /* Wait for the ER1 bit to clear.*/
1254 while (phba->work_hs & HS_FFER1) {
1255 msleep(100);
9940b97b
JS		 1256 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1257 phba->work_hs = UNPLUG_ERR ;
1258 break;
1259 }
a257bf90
JS		 1260 /* If driver is unloading let the worker thread continue */
1261 if (phba->pport->load_flag & FC_UNLOADING) {
1262 phba->work_hs = 0;
1263 break;
1264 }
1265 }
1266
1267 /*
1268 * This is to ptrotect against a race condition in which
1269 * first write to the host attention register clear the
1270 * host status register.
1271 */
1272 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1273 phba->work_hs = old_host_status & ~HS_FFER1;
1274
3772a991 1275 spin_lock_irq(&phba->hbalock);
a257bf90 1276 phba->hba_flag &= ~DEFER_ERATT;
3772a991 1277 spin_unlock_irq(&phba->hbalock);
a257bf90
JS		 1278 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1279 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1280}
1281
3772a991
JS		 1282static void
1283lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1284{
1285 struct lpfc_board_event_header board_event;
1286 struct Scsi_Host *shost;
1287
1288 board_event.event_type = FC_REG_BOARD_EVENT;
1289 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1290 shost = lpfc_shost_from_vport(phba->pport);
1291 fc_host_post_vendor_event(shost, fc_get_event_number(),
1292 sizeof(board_event),
1293 (char *) &board_event,
1294 LPFC_NL_VENDOR_ID);
1295}
1296
e59058c4 1297/**
3772a991 1298 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
e59058c4
JS		 1299 * @phba: pointer to lpfc hba data structure.
1300 *
1301 * This routine is invoked to handle the following HBA hardware error
1302 * conditions:
1303 * 1 - HBA error attention interrupt
1304 * 2 - DMA ring index out of range
1305 * 3 - Mailbox command came back as unknown
1306 **/
3772a991
JS		 1307static void
1308lpfc_handle_eratt_s3(struct lpfc_hba *phba)
dea3101e 1309{
2e0fef85 1310 struct lpfc_vport *vport = phba->pport;
2e0fef85 1311 struct lpfc_sli *psli = &phba->sli;
dea3101e 1312 struct lpfc_sli_ring *pring;
d2873e4c 1313 uint32_t event_data;
57127f15
JS		 1314 unsigned long temperature;
1315 struct temp_event temp_event_data;
92d7f7b0 1316 struct Scsi_Host *shost;
2e0fef85 1317
8d63f375 1318 /* If the pci channel is offline, ignore possible errors,
3772a991
JS		 1319 * since we cannot communicate with the pci card anyway.
1320 */
1321 if (pci_channel_offline(phba->pcidev)) {
1322 spin_lock_irq(&phba->hbalock);
1323 phba->hba_flag &= ~DEFER_ERATT;
1324 spin_unlock_irq(&phba->hbalock);
8d63f375 1325 return;
3772a991
JS		 1326 }
1327
13815c83
JS		 1328 /* If resets are disabled then leave the HBA alone and return */
1329 if (!phba->cfg_enable_hba_reset)
1330 return;
dea3101e 1331
ea2151b4 1332 /* Send an internal error event to mgmt application */
3772a991 1333 lpfc_board_errevt_to_mgmt(phba);
ea2151b4 1334
a257bf90
JS		 1335 if (phba->hba_flag & DEFER_ERATT)
1336 lpfc_handle_deferred_eratt(phba);
1337
dcf2a4e0
JS		 1338 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1339 if (phba->work_hs & HS_FFER6)
1340 /* Re-establishing Link */
1341 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1342 "1301 Re-establishing Link "
1343 "Data: x%x x%x x%x\n",
1344 phba->work_hs, phba->work_status[0],
1345 phba->work_status[1]);
1346 if (phba->work_hs & HS_FFER8)
1347 /* Device Zeroization */
1348 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1349 "2861 Host Authentication device "
1350 "zeroization Data:x%x x%x x%x\n",
1351 phba->work_hs, phba->work_status[0],
1352 phba->work_status[1]);
58da1ffb 1353
92d7f7b0 1354 spin_lock_irq(&phba->hbalock);
f4b4c68f 1355 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
92d7f7b0 1356 spin_unlock_irq(&phba->hbalock);
dea3101e 1357
1358 /*
1359 * Firmware stops when it triggled erratt with HS_FFER6.
1360 * That could cause the I/Os dropped by the firmware.
1361 * Error iocb (I/O) on txcmplq and let the SCSI layer
1362 * retry it after re-establishing link.
1363 */
1364 pring = &psli->ring[psli->fcp_ring];
1365 lpfc_sli_abort_iocb_ring(phba, pring);
1366
dea3101e 1367 /*
1368 * There was a firmware error. Take the hba offline and then
1369 * attempt to restart it.
1370 */
46fa311e 1371 lpfc_offline_prep(phba);
dea3101e 1372 lpfc_offline(phba);
41415862 1373 lpfc_sli_brdrestart(phba);
dea3101e 1374 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
46fa311e 1375 lpfc_unblock_mgmt_io(phba);
dea3101e 1376 return;
1377 }
46fa311e 1378 lpfc_unblock_mgmt_io(phba);
57127f15
JS		 1379 } else if (phba->work_hs & HS_CRIT_TEMP) {
1380 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1381 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1382 temp_event_data.event_code = LPFC_CRIT_TEMP;
1383 temp_event_data.data = (uint32_t)temperature;
1384
1385 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
d7c255b2 1386 "0406 Adapter maximum temperature exceeded "
57127f15
JS		 1387 "(%ld), taking this port offline "
1388 "Data: x%x x%x x%x\n",
1389 temperature, phba->work_hs,
1390 phba->work_status[0], phba->work_status[1]);
1391
1392 shost = lpfc_shost_from_vport(phba->pport);
1393 fc_host_post_vendor_event(shost, fc_get_event_number(),
1394 sizeof(temp_event_data),
1395 (char *) &temp_event_data,
1396 SCSI_NL_VID_TYPE_PCI
1397 | PCI_VENDOR_ID_EMULEX);
1398
7af67051 1399 spin_lock_irq(&phba->hbalock);
7af67051
JS		 1400 phba->over_temp_state = HBA_OVER_TEMP;
1401 spin_unlock_irq(&phba->hbalock);
09372820 1402 lpfc_offline_eratt(phba);
57127f15 1403
dea3101e 1404 } else {
1405 /* The if clause above forces this code path when the status
9399627f
JS		 1406 * failure is a value other than FFER6. Do not call the offline
1407 * twice. This is the adapter hardware error path.
dea3101e 1408 */
1409 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 1410 "0457 Adapter Hardware Error "
dea3101e 1411 "Data: x%x x%x x%x\n",
e8b62011 1412 phba->work_hs,
dea3101e 1413 phba->work_status[0], phba->work_status[1]);
1414
d2873e4c 1415 event_data = FC_REG_DUMP_EVENT;
92d7f7b0 1416 shost = lpfc_shost_from_vport(vport);
2e0fef85 1417 fc_host_post_vendor_event(shost, fc_get_event_number(),
d2873e4c
JS		 1418 sizeof(event_data), (char *) &event_data,
1419 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1420
09372820 1421 lpfc_offline_eratt(phba);
dea3101e 1422 }
9399627f 1423 return;
dea3101e 1424}
1425
da0436e9
JS		 1426/**
1427 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1428 * @phba: pointer to lpfc hba data structure.
1429 *
1430 * This routine is invoked to handle the SLI4 HBA hardware error attention
1431 * conditions.
1432 **/
1433static void
1434lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1435{
1436 struct lpfc_vport *vport = phba->pport;
1437 uint32_t event_data;
1438 struct Scsi_Host *shost;
2fcee4bf
JS		 1439 uint32_t if_type;
1440 struct lpfc_register portstat_reg;
da0436e9
JS		 1441
1442 /* If the pci channel is offline, ignore possible errors, since
1443 * we cannot communicate with the pci card anyway.
1444 */
1445 if (pci_channel_offline(phba->pcidev))
1446 return;
1447 /* If resets are disabled then leave the HBA alone and return */
1448 if (!phba->cfg_enable_hba_reset)
1449 return;
1450
1451 /* Send an internal error event to mgmt application */
1452 lpfc_board_errevt_to_mgmt(phba);
1453
1454 /* For now, the actual action for SLI4 device handling is not
1455 * specified yet, just treated it as adaptor hardware failure
1456 */
da0436e9
JS		 1457 event_data = FC_REG_DUMP_EVENT;
1458 shost = lpfc_shost_from_vport(vport);
1459 fc_host_post_vendor_event(shost, fc_get_event_number(),
1460 sizeof(event_data), (char *) &event_data,
1461 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1462
2fcee4bf
JS		 1463 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1464 switch (if_type) {
1465 case LPFC_SLI_INTF_IF_TYPE_0:
1466 lpfc_sli4_offline_eratt(phba);
1467 break;
1468 case LPFC_SLI_INTF_IF_TYPE_2:
1469 portstat_reg.word0 =
1470 readl(phba->sli4_hba.u.if_type2.STATUSregaddr);
1471
1472 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1473 /* TODO: Register for Overtemp async events. */
1474 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1475 "2889 Port Overtemperature event, "
1476 "taking port\n");
1477 spin_lock_irq(&phba->hbalock);
1478 phba->over_temp_state = HBA_OVER_TEMP;
1479 spin_unlock_irq(&phba->hbalock);
1480 lpfc_sli4_offline_eratt(phba);
1481 return;
1482 }
1483 if (bf_get(lpfc_sliport_status_rn, &portstat_reg)) {
1484 /*
1485 * TODO: Attempt port recovery via a port reset.
1486 * When fully implemented, the driver should
1487 * attempt to recover the port here and return.
1488 * For now, log an error and take the port offline.
1489 */
1490 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1491 "2887 Port Error: Attempting "
1492 "Port Recovery\n");
1493 }
1494 lpfc_sli4_offline_eratt(phba);
1495 break;
1496 case LPFC_SLI_INTF_IF_TYPE_1:
1497 default:
1498 break;
1499 }
da0436e9
JS		 1500}
1501
1502/**
1503 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1504 * @phba: pointer to lpfc HBA data structure.
1505 *
1506 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1507 * routine from the API jump table function pointer from the lpfc_hba struct.
1508 *
1509 * Return codes
af901ca1 1510 * 0 - success.
da0436e9
JS		 1511 * Any other value - error.
1512 **/
1513void
1514lpfc_handle_eratt(struct lpfc_hba *phba)
1515{
1516 (*phba->lpfc_handle_eratt)(phba);
1517}
1518
e59058c4 1519/**
3621a710 1520 * lpfc_handle_latt - The HBA link event handler
e59058c4
JS		 1521 * @phba: pointer to lpfc hba data structure.
1522 *
1523 * This routine is invoked from the worker thread to handle a HBA host
1524 * attention link event.
1525 **/
dea3101e 1526void
2e0fef85 1527lpfc_handle_latt(struct lpfc_hba *phba)
dea3101e 1528{
2e0fef85
JS		 1529 struct lpfc_vport *vport = phba->pport;
1530 struct lpfc_sli *psli = &phba->sli;
dea3101e 1531 LPFC_MBOXQ_t *pmb;
1532 volatile uint32_t control;
1533 struct lpfc_dmabuf *mp;
09372820 1534 int rc = 0;
dea3101e 1535
1536 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
09372820
JS		 1537 if (!pmb) {
1538 rc = 1;
dea3101e 1539 goto lpfc_handle_latt_err_exit;
09372820 1540 }
dea3101e 1541
1542 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
09372820
JS		 1543 if (!mp) {
1544 rc = 2;
dea3101e 1545 goto lpfc_handle_latt_free_pmb;
09372820 1546 }
dea3101e 1547
1548 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
09372820
JS		 1549 if (!mp->virt) {
1550 rc = 3;
dea3101e 1551 goto lpfc_handle_latt_free_mp;
09372820 1552 }
dea3101e 1553
6281bfe0 1554 /* Cleanup any outstanding ELS commands */
549e55cd 1555 lpfc_els_flush_all_cmd(phba);
dea3101e 1556
1557 psli->slistat.link_event++;
76a95d75
JS		 1558 lpfc_read_topology(phba, pmb, mp);
1559 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2e0fef85 1560 pmb->vport = vport;
0d2b6b83
JS		 1561 /* Block ELS IOCBs until we have processed this mbox command */
1562 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
0b727fea 1563 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
09372820
JS		 1564 if (rc == MBX_NOT_FINISHED) {
1565 rc = 4;
14691150 1566 goto lpfc_handle_latt_free_mbuf;
09372820 1567 }
dea3101e 1568
1569 /* Clear Link Attention in HA REG */
2e0fef85 1570 spin_lock_irq(&phba->hbalock);
dea3101e 1571 writel(HA_LATT, phba->HAregaddr);
1572 readl(phba->HAregaddr); /* flush */
2e0fef85 1573 spin_unlock_irq(&phba->hbalock);
dea3101e 1574
1575 return;
1576
14691150 1577lpfc_handle_latt_free_mbuf:
0d2b6b83 1578 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
14691150 1579 lpfc_mbuf_free(phba, mp->virt, mp->phys);
dea3101e 1580lpfc_handle_latt_free_mp:
1581 kfree(mp);
1582lpfc_handle_latt_free_pmb:
1dcb58e5 1583 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 1584lpfc_handle_latt_err_exit:
1585 /* Enable Link attention interrupts */
2e0fef85 1586 spin_lock_irq(&phba->hbalock);
dea3101e 1587 psli->sli_flag |= LPFC_PROCESS_LA;
1588 control = readl(phba->HCregaddr);
1589 control |= HC_LAINT_ENA;
1590 writel(control, phba->HCregaddr);
1591 readl(phba->HCregaddr); /* flush */
1592
1593 /* Clear Link Attention in HA REG */
1594 writel(HA_LATT, phba->HAregaddr);
1595 readl(phba->HAregaddr); /* flush */
2e0fef85 1596 spin_unlock_irq(&phba->hbalock);
dea3101e 1597 lpfc_linkdown(phba);
2e0fef85 1598 phba->link_state = LPFC_HBA_ERROR;
dea3101e 1599
09372820
JS		 1600 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1601 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
dea3101e 1602
1603 return;
1604}
1605
e59058c4 1606/**
3621a710 1607 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
e59058c4
JS		 1608 * @phba: pointer to lpfc hba data structure.
1609 * @vpd: pointer to the vital product data.
1610 * @len: length of the vital product data in bytes.
1611 *
1612 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1613 * an array of characters. In this routine, the ModelName, ProgramType, and
1614 * ModelDesc, etc. fields of the phba data structure will be populated.
1615 *
1616 * Return codes
1617 * 0 - pointer to the VPD passed in is NULL
1618 * 1 - success
1619 **/
3772a991 1620int
2e0fef85 1621lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
dea3101e 1622{
1623 uint8_t lenlo, lenhi;
07da60c1 1624 int Length;
dea3101e 1625 int i, j;
1626 int finished = 0;
1627 int index = 0;
1628
1629 if (!vpd)
1630 return 0;
1631
1632 /* Vital Product */
ed957684 1633 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011 1634 "0455 Vital Product Data: x%x x%x x%x x%x\n",
dea3101e 1635 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1636 (uint32_t) vpd[3]);
74b72a59 1637 while (!finished && (index < (len - 4))) {
dea3101e 1638 switch (vpd[index]) {
1639 case 0x82:
74b72a59 1640 case 0x91:
dea3101e 1641 index += 1;
1642 lenlo = vpd[index];
1643 index += 1;
1644 lenhi = vpd[index];
1645 index += 1;
1646 i = ((((unsigned short)lenhi) << 8) + lenlo);
1647 index += i;
1648 break;
1649 case 0x90:
1650 index += 1;
1651 lenlo = vpd[index];
1652 index += 1;
1653 lenhi = vpd[index];
1654 index += 1;
1655 Length = ((((unsigned short)lenhi) << 8) + lenlo);
74b72a59
JW		 1656 if (Length > len - index)
1657 Length = len - index;
dea3101e 1658 while (Length > 0) {
1659 /* Look for Serial Number */
1660 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1661 index += 2;
1662 i = vpd[index];
1663 index += 1;
1664 j = 0;
1665 Length -= (3+i);
1666 while(i--) {
1667 phba->SerialNumber[j++] = vpd[index++];
1668 if (j == 31)
1669 break;
1670 }
1671 phba->SerialNumber[j] = 0;
1672 continue;
1673 }
1674 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1675 phba->vpd_flag |= VPD_MODEL_DESC;
1676 index += 2;
1677 i = vpd[index];
1678 index += 1;
1679 j = 0;
1680 Length -= (3+i);
1681 while(i--) {
1682 phba->ModelDesc[j++] = vpd[index++];
1683 if (j == 255)
1684 break;
1685 }
1686 phba->ModelDesc[j] = 0;
1687 continue;
1688 }
1689 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1690 phba->vpd_flag |= VPD_MODEL_NAME;
1691 index += 2;
1692 i = vpd[index];
1693 index += 1;
1694 j = 0;
1695 Length -= (3+i);
1696 while(i--) {
1697 phba->ModelName[j++] = vpd[index++];
1698 if (j == 79)
1699 break;
1700 }
1701 phba->ModelName[j] = 0;
1702 continue;
1703 }
1704 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1705 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1706 index += 2;
1707 i = vpd[index];
1708 index += 1;
1709 j = 0;
1710 Length -= (3+i);
1711 while(i--) {
1712 phba->ProgramType[j++] = vpd[index++];
1713 if (j == 255)
1714 break;
1715 }
1716 phba->ProgramType[j] = 0;
1717 continue;
1718 }
1719 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1720 phba->vpd_flag |= VPD_PORT;
1721 index += 2;
1722 i = vpd[index];
1723 index += 1;
1724 j = 0;
1725 Length -= (3+i);
1726 while(i--) {
1727 phba->Port[j++] = vpd[index++];
1728 if (j == 19)
1729 break;
1730 }
1731 phba->Port[j] = 0;
1732 continue;
1733 }
1734 else {
1735 index += 2;
1736 i = vpd[index];
1737 index += 1;
1738 index += i;
1739 Length -= (3 + i);
1740 }
1741 }
1742 finished = 0;
1743 break;
1744 case 0x78:
1745 finished = 1;
1746 break;
1747 default:
1748 index ++;
1749 break;
1750 }
74b72a59 1751 }
dea3101e 1752
1753 return(1);
1754}
1755
e59058c4 1756/**
3621a710 1757 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
e59058c4
JS		 1758 * @phba: pointer to lpfc hba data structure.
1759 * @mdp: pointer to the data structure to hold the derived model name.
1760 * @descp: pointer to the data structure to hold the derived description.
1761 *
1762 * This routine retrieves HBA's description based on its registered PCI device
1763 * ID. The @descp passed into this function points to an array of 256 chars. It
1764 * shall be returned with the model name, maximum speed, and the host bus type.
1765 * The @mdp passed into this function points to an array of 80 chars. When the
1766 * function returns, the @mdp will be filled with the model name.
1767 **/
dea3101e 1768static void
2e0fef85 1769lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
dea3101e 1770{
1771 lpfc_vpd_t *vp;
fefcb2b6 1772 uint16_t dev_id = phba->pcidev->device;
74b72a59 1773 int max_speed;
84774a4d 1774 int GE = 0;
da0436e9 1775 int oneConnect = 0; /* default is not a oneConnect */
74b72a59 1776 struct {
a747c9ce
JS		 1777 char *name;
1778 char *bus;
1779 char *function;
1780 } m = {"<Unknown>", "", ""};
74b72a59
JW		 1781
1782 if (mdp && mdp[0] != '\0'
1783 && descp && descp[0] != '\0')
1784 return;
1785
c0c11512
JS		 1786 if (phba->lmt & LMT_16Gb)
1787 max_speed = 16;
1788 else if (phba->lmt & LMT_10Gb)
74b72a59
JW		 1789 max_speed = 10;
1790 else if (phba->lmt & LMT_8Gb)
1791 max_speed = 8;
1792 else if (phba->lmt & LMT_4Gb)
1793 max_speed = 4;
1794 else if (phba->lmt & LMT_2Gb)
1795 max_speed = 2;
1796 else
1797 max_speed = 1;
dea3101e 1798
1799 vp = &phba->vpd;
dea3101e 1800
e4adb204 1801 switch (dev_id) {
06325e74 1802 case PCI_DEVICE_ID_FIREFLY:
a747c9ce 1803 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
06325e74 1804 break;
dea3101e 1805 case PCI_DEVICE_ID_SUPERFLY:
1806 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
a747c9ce
JS		 1807 m = (typeof(m)){"LP7000", "PCI",
1808 "Fibre Channel Adapter"};
dea3101e 1809 else
a747c9ce
JS		 1810 m = (typeof(m)){"LP7000E", "PCI",
1811 "Fibre Channel Adapter"};
dea3101e 1812 break;
1813 case PCI_DEVICE_ID_DRAGONFLY:
a747c9ce
JS		 1814 m = (typeof(m)){"LP8000", "PCI",
1815 "Fibre Channel Adapter"};
dea3101e 1816 break;
1817 case PCI_DEVICE_ID_CENTAUR:
1818 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
a747c9ce
JS		 1819 m = (typeof(m)){"LP9002", "PCI",
1820 "Fibre Channel Adapter"};
dea3101e 1821 else
a747c9ce
JS		 1822 m = (typeof(m)){"LP9000", "PCI",
1823 "Fibre Channel Adapter"};
dea3101e 1824 break;
1825 case PCI_DEVICE_ID_RFLY:
a747c9ce
JS		 1826 m = (typeof(m)){"LP952", "PCI",
1827 "Fibre Channel Adapter"};
dea3101e 1828 break;
1829 case PCI_DEVICE_ID_PEGASUS:
a747c9ce
JS		 1830 m = (typeof(m)){"LP9802", "PCI-X",
1831 "Fibre Channel Adapter"};
dea3101e 1832 break;
1833 case PCI_DEVICE_ID_THOR:
a747c9ce
JS		 1834 m = (typeof(m)){"LP10000", "PCI-X",
1835 "Fibre Channel Adapter"};
dea3101e 1836 break;
1837 case PCI_DEVICE_ID_VIPER:
a747c9ce
JS		 1838 m = (typeof(m)){"LPX1000", "PCI-X",
1839 "Fibre Channel Adapter"};
dea3101e 1840 break;
1841 case PCI_DEVICE_ID_PFLY:
a747c9ce
JS		 1842 m = (typeof(m)){"LP982", "PCI-X",
1843 "Fibre Channel Adapter"};
dea3101e 1844 break;
1845 case PCI_DEVICE_ID_TFLY:
a747c9ce
JS		 1846 m = (typeof(m)){"LP1050", "PCI-X",
1847 "Fibre Channel Adapter"};
dea3101e 1848 break;
1849 case PCI_DEVICE_ID_HELIOS:
a747c9ce
JS		 1850 m = (typeof(m)){"LP11000", "PCI-X2",
1851 "Fibre Channel Adapter"};
dea3101e 1852 break;
e4adb204 1853 case PCI_DEVICE_ID_HELIOS_SCSP:
a747c9ce
JS		 1854 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1855 "Fibre Channel Adapter"};
e4adb204
JSEC		 1856 break;
1857 case PCI_DEVICE_ID_HELIOS_DCSP:
a747c9ce
JS		 1858 m = (typeof(m)){"LP11002-SP", "PCI-X2",
1859 "Fibre Channel Adapter"};
e4adb204
JSEC		 1860 break;
1861 case PCI_DEVICE_ID_NEPTUNE:
a747c9ce 1862 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 1863 break;
1864 case PCI_DEVICE_ID_NEPTUNE_SCSP:
a747c9ce 1865 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 1866 break;
1867 case PCI_DEVICE_ID_NEPTUNE_DCSP:
a747c9ce 1868 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
e4adb204 1869 break;
dea3101e 1870 case PCI_DEVICE_ID_BMID:
a747c9ce 1871 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
dea3101e 1872 break;
1873 case PCI_DEVICE_ID_BSMB:
a747c9ce 1874 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
dea3101e 1875 break;
1876 case PCI_DEVICE_ID_ZEPHYR:
a747c9ce 1877 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
dea3101e 1878 break;
e4adb204 1879 case PCI_DEVICE_ID_ZEPHYR_SCSP:
a747c9ce 1880 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 1881 break;
1882 case PCI_DEVICE_ID_ZEPHYR_DCSP:
a747c9ce 1883 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
a257bf90 1884 GE = 1;
e4adb204 1885 break;
dea3101e 1886 case PCI_DEVICE_ID_ZMID:
a747c9ce 1887 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
dea3101e 1888 break;
1889 case PCI_DEVICE_ID_ZSMB:
a747c9ce 1890 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
dea3101e 1891 break;
1892 case PCI_DEVICE_ID_LP101:
a747c9ce 1893 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
dea3101e 1894 break;
1895 case PCI_DEVICE_ID_LP10000S:
a747c9ce 1896 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
06325e74 1897 break;
e4adb204 1898 case PCI_DEVICE_ID_LP11000S:
a747c9ce 1899 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
18a3b596 1900 break;
e4adb204 1901 case PCI_DEVICE_ID_LPE11000S:
a747c9ce 1902 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
5cc36b3c 1903 break;
b87eab38 1904 case PCI_DEVICE_ID_SAT:
a747c9ce 1905 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1906 break;
1907 case PCI_DEVICE_ID_SAT_MID:
a747c9ce 1908 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1909 break;
1910 case PCI_DEVICE_ID_SAT_SMB:
a747c9ce 1911 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1912 break;
1913 case PCI_DEVICE_ID_SAT_DCSP:
a747c9ce 1914 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1915 break;
1916 case PCI_DEVICE_ID_SAT_SCSP:
a747c9ce 1917 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1918 break;
1919 case PCI_DEVICE_ID_SAT_S:
a747c9ce 1920 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
b87eab38 1921 break;
84774a4d 1922 case PCI_DEVICE_ID_HORNET:
a747c9ce 1923 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
84774a4d
JS		 1924 GE = 1;
1925 break;
1926 case PCI_DEVICE_ID_PROTEUS_VF:
a747c9ce
JS		 1927 m = (typeof(m)){"LPev12000", "PCIe IOV",
1928 "Fibre Channel Adapter"};
84774a4d
JS		 1929 break;
1930 case PCI_DEVICE_ID_PROTEUS_PF:
a747c9ce
JS		 1931 m = (typeof(m)){"LPev12000", "PCIe IOV",
1932 "Fibre Channel Adapter"};
84774a4d
JS		 1933 break;
1934 case PCI_DEVICE_ID_PROTEUS_S:
a747c9ce
JS		 1935 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1936 "Fibre Channel Adapter"};
84774a4d 1937 break;
da0436e9
JS		 1938 case PCI_DEVICE_ID_TIGERSHARK:
1939 oneConnect = 1;
a747c9ce 1940 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
da0436e9 1941 break;
a747c9ce 1942 case PCI_DEVICE_ID_TOMCAT:
6669f9bb 1943 oneConnect = 1;
a747c9ce
JS		 1944 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
1945 break;
1946 case PCI_DEVICE_ID_FALCON:
1947 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
1948 "EmulexSecure Fibre"};
6669f9bb 1949 break;
98fc5dd9
JS		 1950 case PCI_DEVICE_ID_BALIUS:
1951 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
1952 "Fibre Channel Adapter"};
1953 break;
085c647c 1954 case PCI_DEVICE_ID_LANCER_FC:
c0c11512
JS		 1955 case PCI_DEVICE_ID_LANCER_FC_VF:
1956 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
085c647c
JS		 1957 break;
1958 case PCI_DEVICE_ID_LANCER_FCOE:
c0c11512 1959 case PCI_DEVICE_ID_LANCER_FCOE_VF:
085c647c 1960 oneConnect = 1;
c0c11512 1961 m = (typeof(m)){"OCe50100", "PCIe", "FCoE"};
085c647c 1962 break;
5cc36b3c 1963 default:
a747c9ce 1964 m = (typeof(m)){"Unknown", "", ""};
e4adb204 1965 break;
dea3101e 1966 }
74b72a59
JW		 1967
1968 if (mdp && mdp[0] == '\0')
1969 snprintf(mdp, 79,"%s", m.name);
c0c11512
JS		 1970 /*
1971 * oneConnect hba requires special processing, they are all initiators
da0436e9
JS		 1972 * and we put the port number on the end
1973 */
1974 if (descp && descp[0] == '\0') {
1975 if (oneConnect)
1976 snprintf(descp, 255,
a747c9ce
JS		 1977 "Emulex OneConnect %s, %s Initiator, Port %s",
1978 m.name, m.function,
da0436e9
JS		 1979 phba->Port);
1980 else
1981 snprintf(descp, 255,
1982 "Emulex %s %d%s %s %s",
a747c9ce
JS		 1983 m.name, max_speed, (GE) ? "GE" : "Gb",
1984 m.bus, m.function);
da0436e9 1985 }
dea3101e 1986}
1987
e59058c4 1988/**
3621a710 1989 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
e59058c4
JS		 1990 * @phba: pointer to lpfc hba data structure.
1991 * @pring: pointer to a IOCB ring.
1992 * @cnt: the number of IOCBs to be posted to the IOCB ring.
1993 *
1994 * This routine posts a given number of IOCBs with the associated DMA buffer
1995 * descriptors specified by the cnt argument to the given IOCB ring.
1996 *
1997 * Return codes
1998 * The number of IOCBs NOT able to be posted to the IOCB ring.
1999 **/
dea3101e 2000int
495a714c 2001lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
dea3101e 2002{
2003 IOCB_t *icmd;
0bd4ca25 2004 struct lpfc_iocbq *iocb;
dea3101e 2005 struct lpfc_dmabuf *mp1, *mp2;
2006
2007 cnt += pring->missbufcnt;
2008
2009 /* While there are buffers to post */
2010 while (cnt > 0) {
2011 /* Allocate buffer for command iocb */
0bd4ca25 2012 iocb = lpfc_sli_get_iocbq(phba);
dea3101e 2013 if (iocb == NULL) {
2014 pring->missbufcnt = cnt;
2015 return cnt;
2016 }
dea3101e 2017 icmd = &iocb->iocb;
2018
2019 /* 2 buffers can be posted per command */
2020 /* Allocate buffer to post */
2021 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2022 if (mp1)
98c9ea5c
JS		 2023 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2024 if (!mp1 || !mp1->virt) {
c9475cb0 2025 kfree(mp1);
604a3e30 2026 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2027 pring->missbufcnt = cnt;
2028 return cnt;
2029 }
2030
2031 INIT_LIST_HEAD(&mp1->list);
2032 /* Allocate buffer to post */
2033 if (cnt > 1) {
2034 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2035 if (mp2)
2036 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2037 &mp2->phys);
98c9ea5c 2038 if (!mp2 || !mp2->virt) {
c9475cb0 2039 kfree(mp2);
dea3101e 2040 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2041 kfree(mp1);
604a3e30 2042 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2043 pring->missbufcnt = cnt;
2044 return cnt;
2045 }
2046
2047 INIT_LIST_HEAD(&mp2->list);
2048 } else {
2049 mp2 = NULL;
2050 }
2051
2052 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2053 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2054 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2055 icmd->ulpBdeCount = 1;
2056 cnt--;
2057 if (mp2) {
2058 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2059 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2060 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2061 cnt--;
2062 icmd->ulpBdeCount = 2;
2063 }
2064
2065 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2066 icmd->ulpLe = 1;
2067
3772a991
JS		 2068 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2069 IOCB_ERROR) {
dea3101e 2070 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2071 kfree(mp1);
2072 cnt++;
2073 if (mp2) {
2074 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2075 kfree(mp2);
2076 cnt++;
2077 }
604a3e30 2078 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2079 pring->missbufcnt = cnt;
dea3101e 2080 return cnt;
2081 }
dea3101e 2082 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
92d7f7b0 2083 if (mp2)
dea3101e 2084 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
dea3101e 2085 }
2086 pring->missbufcnt = 0;
2087 return 0;
2088}
2089
e59058c4 2090/**
3621a710 2091 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
e59058c4
JS		 2092 * @phba: pointer to lpfc hba data structure.
2093 *
2094 * This routine posts initial receive IOCB buffers to the ELS ring. The
2095 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2096 * set to 64 IOCBs.
2097 *
2098 * Return codes
2099 * 0 - success (currently always success)
2100 **/
dea3101e 2101static int
2e0fef85 2102lpfc_post_rcv_buf(struct lpfc_hba *phba)
dea3101e 2103{
2104 struct lpfc_sli *psli = &phba->sli;
2105
2106 /* Ring 0, ELS / CT buffers */
495a714c 2107 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
dea3101e 2108 /* Ring 2 - FCP no buffers needed */
2109
2110 return 0;
2111}
2112
2113#define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2114
e59058c4 2115/**
3621a710 2116 * lpfc_sha_init - Set up initial array of hash table entries
e59058c4
JS		 2117 * @HashResultPointer: pointer to an array as hash table.
2118 *
2119 * This routine sets up the initial values to the array of hash table entries
2120 * for the LC HBAs.
2121 **/
dea3101e 2122static void
2123lpfc_sha_init(uint32_t * HashResultPointer)
2124{
2125 HashResultPointer[0] = 0x67452301;
2126 HashResultPointer[1] = 0xEFCDAB89;
2127 HashResultPointer[2] = 0x98BADCFE;
2128 HashResultPointer[3] = 0x10325476;
2129 HashResultPointer[4] = 0xC3D2E1F0;
2130}
2131
e59058c4 2132/**
3621a710 2133 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
e59058c4
JS		 2134 * @HashResultPointer: pointer to an initial/result hash table.
2135 * @HashWorkingPointer: pointer to an working hash table.
2136 *
2137 * This routine iterates an initial hash table pointed by @HashResultPointer
2138 * with the values from the working hash table pointeed by @HashWorkingPointer.
2139 * The results are putting back to the initial hash table, returned through
2140 * the @HashResultPointer as the result hash table.
2141 **/
dea3101e 2142static void
2143lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2144{
2145 int t;
2146 uint32_t TEMP;
2147 uint32_t A, B, C, D, E;
2148 t = 16;
2149 do {
2150 HashWorkingPointer[t] =
2151 S(1,
2152 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2153 8] ^
2154 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2155 } while (++t <= 79);
2156 t = 0;
2157 A = HashResultPointer[0];
2158 B = HashResultPointer[1];
2159 C = HashResultPointer[2];
2160 D = HashResultPointer[3];
2161 E = HashResultPointer[4];
2162
2163 do {
2164 if (t < 20) {
2165 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2166 } else if (t < 40) {
2167 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2168 } else if (t < 60) {
2169 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2170 } else {
2171 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2172 }
2173 TEMP += S(5, A) + E + HashWorkingPointer[t];
2174 E = D;
2175 D = C;
2176 C = S(30, B);
2177 B = A;
2178 A = TEMP;
2179 } while (++t <= 79);
2180
2181 HashResultPointer[0] += A;
2182 HashResultPointer[1] += B;
2183 HashResultPointer[2] += C;
2184 HashResultPointer[3] += D;
2185 HashResultPointer[4] += E;
2186
2187}
2188
e59058c4 2189/**
3621a710 2190 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
e59058c4
JS		 2191 * @RandomChallenge: pointer to the entry of host challenge random number array.
2192 * @HashWorking: pointer to the entry of the working hash array.
2193 *
2194 * This routine calculates the working hash array referred by @HashWorking
2195 * from the challenge random numbers associated with the host, referred by
2196 * @RandomChallenge. The result is put into the entry of the working hash
2197 * array and returned by reference through @HashWorking.
2198 **/
dea3101e 2199static void
2200lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2201{
2202 *HashWorking = (*RandomChallenge ^ *HashWorking);
2203}
2204
e59058c4 2205/**
3621a710 2206 * lpfc_hba_init - Perform special handling for LC HBA initialization
e59058c4
JS		 2207 * @phba: pointer to lpfc hba data structure.
2208 * @hbainit: pointer to an array of unsigned 32-bit integers.
2209 *
2210 * This routine performs the special handling for LC HBA initialization.
2211 **/
dea3101e 2212void
2213lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2214{
2215 int t;
2216 uint32_t *HashWorking;
2e0fef85 2217 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
dea3101e 2218
bbfbbbc1 2219 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
dea3101e 2220 if (!HashWorking)
2221 return;
2222
dea3101e 2223 HashWorking[0] = HashWorking[78] = *pwwnn++;
2224 HashWorking[1] = HashWorking[79] = *pwwnn;
2225
2226 for (t = 0; t < 7; t++)
2227 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2228
2229 lpfc_sha_init(hbainit);
2230 lpfc_sha_iterate(hbainit, HashWorking);
2231 kfree(HashWorking);
2232}
2233
e59058c4 2234/**
3621a710 2235 * lpfc_cleanup - Performs vport cleanups before deleting a vport
e59058c4
JS		 2236 * @vport: pointer to a virtual N_Port data structure.
2237 *
2238 * This routine performs the necessary cleanups before deleting the @vport.
2239 * It invokes the discovery state machine to perform necessary state
2240 * transitions and to release the ndlps associated with the @vport. Note,
2241 * the physical port is treated as @vport 0.
2242 **/
87af33fe 2243void
2e0fef85 2244lpfc_cleanup(struct lpfc_vport *vport)
dea3101e 2245{
87af33fe 2246 struct lpfc_hba *phba = vport->phba;
dea3101e 2247 struct lpfc_nodelist *ndlp, *next_ndlp;
a8adb832 2248 int i = 0;
dea3101e 2249
87af33fe
JS		 2250 if (phba->link_state > LPFC_LINK_DOWN)
2251 lpfc_port_link_failure(vport);
2252
2253 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
e47c9093
JS		 2254 if (!NLP_CHK_NODE_ACT(ndlp)) {
2255 ndlp = lpfc_enable_node(vport, ndlp,
2256 NLP_STE_UNUSED_NODE);
2257 if (!ndlp)
2258 continue;
2259 spin_lock_irq(&phba->ndlp_lock);
2260 NLP_SET_FREE_REQ(ndlp);
2261 spin_unlock_irq(&phba->ndlp_lock);
2262 /* Trigger the release of the ndlp memory */
2263 lpfc_nlp_put(ndlp);
2264 continue;
2265 }
2266 spin_lock_irq(&phba->ndlp_lock);
2267 if (NLP_CHK_FREE_REQ(ndlp)) {
2268 /* The ndlp should not be in memory free mode already */
2269 spin_unlock_irq(&phba->ndlp_lock);
2270 continue;
2271 } else
2272 /* Indicate request for freeing ndlp memory */
2273 NLP_SET_FREE_REQ(ndlp);
2274 spin_unlock_irq(&phba->ndlp_lock);
2275
58da1ffb
JS		 2276 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2277 ndlp->nlp_DID == Fabric_DID) {
2278 /* Just free up ndlp with Fabric_DID for vports */
2279 lpfc_nlp_put(ndlp);
2280 continue;
2281 }
2282
87af33fe
JS		 2283 if (ndlp->nlp_type & NLP_FABRIC)
2284 lpfc_disc_state_machine(vport, ndlp, NULL,
2285 NLP_EVT_DEVICE_RECOVERY);
e47c9093 2286
87af33fe
JS		 2287 lpfc_disc_state_machine(vport, ndlp, NULL,
2288 NLP_EVT_DEVICE_RM);
495a714c 2289
87af33fe
JS		 2290 }
2291
a8adb832
JS		 2292 /* At this point, ALL ndlp's should be gone
2293 * because of the previous NLP_EVT_DEVICE_RM.
2294 * Lets wait for this to happen, if needed.
2295 */
87af33fe 2296 while (!list_empty(&vport->fc_nodes)) {
a8adb832 2297 if (i++ > 3000) {
87af33fe 2298 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
a8adb832 2299 "0233 Nodelist not empty\n");
e47c9093
JS		 2300 list_for_each_entry_safe(ndlp, next_ndlp,
2301 &vport->fc_nodes, nlp_listp) {
2302 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2303 LOG_NODE,
d7c255b2 2304 "0282 did:x%x ndlp:x%p "
e47c9093
JS		 2305 "usgmap:x%x refcnt:%d\n",
2306 ndlp->nlp_DID, (void *)ndlp,
2307 ndlp->nlp_usg_map,
2308 atomic_read(
2309 &ndlp->kref.refcount));
2310 }
a8adb832 2311 break;
87af33fe 2312 }
a8adb832
JS		 2313
2314 /* Wait for any activity on ndlps to settle */
2315 msleep(10);
87af33fe 2316 }
1151e3ec 2317 lpfc_cleanup_vports_rrqs(vport, NULL);
dea3101e 2318}
2319
e59058c4 2320/**
3621a710 2321 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
e59058c4
JS		 2322 * @vport: pointer to a virtual N_Port data structure.
2323 *
2324 * This routine stops all the timers associated with a @vport. This function
2325 * is invoked before disabling or deleting a @vport. Note that the physical
2326 * port is treated as @vport 0.
2327 **/
92d7f7b0
JS		 2328void
2329lpfc_stop_vport_timers(struct lpfc_vport *vport)
dea3101e 2330{
92d7f7b0
JS		 2331 del_timer_sync(&vport->els_tmofunc);
2332 del_timer_sync(&vport->fc_fdmitmo);
92494144 2333 del_timer_sync(&vport->delayed_disc_tmo);
92d7f7b0
JS		 2334 lpfc_can_disctmo(vport);
2335 return;
dea3101e 2336}
2337
ecfd03c6
JS		 2338/**
2339 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2340 * @phba: pointer to lpfc hba data structure.
2341 *
2342 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2343 * caller of this routine should already hold the host lock.
2344 **/
2345void
2346__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2347{
5ac6b303
JS		 2348 /* Clear pending FCF rediscovery wait flag */
2349 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2350
ecfd03c6
JS		 2351 /* Now, try to stop the timer */
2352 del_timer(&phba->fcf.redisc_wait);
2353}
2354
2355/**
2356 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2357 * @phba: pointer to lpfc hba data structure.
2358 *
2359 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2360 * checks whether the FCF rediscovery wait timer is pending with the host
2361 * lock held before proceeding with disabling the timer and clearing the
2362 * wait timer pendig flag.
2363 **/
2364void
2365lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2366{
2367 spin_lock_irq(&phba->hbalock);
2368 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2369 /* FCF rediscovery timer already fired or stopped */
2370 spin_unlock_irq(&phba->hbalock);
2371 return;
2372 }
2373 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
5ac6b303
JS		 2374 /* Clear failover in progress flags */
2375 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
ecfd03c6
JS		 2376 spin_unlock_irq(&phba->hbalock);
2377}
2378
e59058c4 2379/**
3772a991 2380 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
e59058c4
JS		 2381 * @phba: pointer to lpfc hba data structure.
2382 *
2383 * This routine stops all the timers associated with a HBA. This function is
2384 * invoked before either putting a HBA offline or unloading the driver.
2385 **/
3772a991
JS		 2386void
2387lpfc_stop_hba_timers(struct lpfc_hba *phba)
dea3101e 2388{
51ef4c26 2389 lpfc_stop_vport_timers(phba->pport);
2e0fef85 2390 del_timer_sync(&phba->sli.mbox_tmo);
92d7f7b0 2391 del_timer_sync(&phba->fabric_block_timer);
9399627f 2392 del_timer_sync(&phba->eratt_poll);
3772a991 2393 del_timer_sync(&phba->hb_tmofunc);
1151e3ec
JS		 2394 if (phba->sli_rev == LPFC_SLI_REV4) {
2395 del_timer_sync(&phba->rrq_tmr);
2396 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2397 }
3772a991
JS		 2398 phba->hb_outstanding = 0;
2399
2400 switch (phba->pci_dev_grp) {
2401 case LPFC_PCI_DEV_LP:
2402 /* Stop any LightPulse device specific driver timers */
2403 del_timer_sync(&phba->fcp_poll_timer);
2404 break;
2405 case LPFC_PCI_DEV_OC:
2406 /* Stop any OneConnect device sepcific driver timers */
ecfd03c6 2407 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3772a991
JS		 2408 break;
2409 default:
2410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2411 "0297 Invalid device group (x%x)\n",
2412 phba->pci_dev_grp);
2413 break;
2414 }
2e0fef85 2415 return;
dea3101e 2416}
2417
e59058c4 2418/**
3621a710 2419 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
e59058c4
JS		 2420 * @phba: pointer to lpfc hba data structure.
2421 *
2422 * This routine marks a HBA's management interface as blocked. Once the HBA's
2423 * management interface is marked as blocked, all the user space access to
2424 * the HBA, whether they are from sysfs interface or libdfc interface will
2425 * all be blocked. The HBA is set to block the management interface when the
2426 * driver prepares the HBA interface for online or offline.
2427 **/
a6ababd2
AB		 2428static void
2429lpfc_block_mgmt_io(struct lpfc_hba * phba)
2430{
2431 unsigned long iflag;
6e7288d9
JS		 2432 uint8_t actcmd = MBX_HEARTBEAT;
2433 unsigned long timeout;
2434
a6ababd2
AB		 2435
2436 spin_lock_irqsave(&phba->hbalock, iflag);
2437 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
6e7288d9
JS		 2438 if (phba->sli.mbox_active)
2439 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
a6ababd2 2440 spin_unlock_irqrestore(&phba->hbalock, iflag);
6e7288d9
JS		 2441 /* Determine how long we might wait for the active mailbox
2442 * command to be gracefully completed by firmware.
2443 */
2444 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
2445 jiffies;
2446 /* Wait for the outstnading mailbox command to complete */
2447 while (phba->sli.mbox_active) {
2448 /* Check active mailbox complete status every 2ms */
2449 msleep(2);
2450 if (time_after(jiffies, timeout)) {
2451 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2452 "2813 Mgmt IO is Blocked %x "
2453 "- mbox cmd %x still active\n",
2454 phba->sli.sli_flag, actcmd);
2455 break;
2456 }
2457 }
a6ababd2
AB		 2458}
2459
e59058c4 2460/**
3621a710 2461 * lpfc_online - Initialize and bring a HBA online
e59058c4
JS		 2462 * @phba: pointer to lpfc hba data structure.
2463 *
2464 * This routine initializes the HBA and brings a HBA online. During this
2465 * process, the management interface is blocked to prevent user space access
2466 * to the HBA interfering with the driver initialization.
2467 *
2468 * Return codes
2469 * 0 - successful
2470 * 1 - failed
2471 **/
dea3101e 2472int
2e0fef85 2473lpfc_online(struct lpfc_hba *phba)
dea3101e 2474{
372bd282 2475 struct lpfc_vport *vport;
549e55cd
JS		 2476 struct lpfc_vport **vports;
2477 int i;
2e0fef85 2478
dea3101e 2479 if (!phba)
2480 return 0;
372bd282 2481 vport = phba->pport;
dea3101e 2482
2e0fef85 2483 if (!(vport->fc_flag & FC_OFFLINE_MODE))
dea3101e 2484 return 0;
2485
ed957684 2486 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
e8b62011 2487 "0458 Bring Adapter online\n");
dea3101e 2488
46fa311e
JS		 2489 lpfc_block_mgmt_io(phba);
2490
2491 if (!lpfc_sli_queue_setup(phba)) {
2492 lpfc_unblock_mgmt_io(phba);
dea3101e 2493 return 1;
46fa311e 2494 }
dea3101e 2495
da0436e9
JS		 2496 if (phba->sli_rev == LPFC_SLI_REV4) {
2497 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2498 lpfc_unblock_mgmt_io(phba);
2499 return 1;
2500 }
2501 } else {
2502 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2503 lpfc_unblock_mgmt_io(phba);
2504 return 1;
2505 }
46fa311e 2506 }
dea3101e 2507
549e55cd
JS		 2508 vports = lpfc_create_vport_work_array(phba);
2509 if (vports != NULL)
da0436e9 2510 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
549e55cd
JS		 2511 struct Scsi_Host *shost;
2512 shost = lpfc_shost_from_vport(vports[i]);
2513 spin_lock_irq(shost->host_lock);
2514 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2515 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2516 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
1c6834a7
JS		 2517 if (phba->sli_rev == LPFC_SLI_REV4)
2518 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
549e55cd
JS		 2519 spin_unlock_irq(shost->host_lock);
2520 }
09372820 2521 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 2522
46fa311e 2523 lpfc_unblock_mgmt_io(phba);
dea3101e 2524 return 0;
2525}
2526
e59058c4 2527/**
3621a710 2528 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
e59058c4
JS		 2529 * @phba: pointer to lpfc hba data structure.
2530 *
2531 * This routine marks a HBA's management interface as not blocked. Once the
2532 * HBA's management interface is marked as not blocked, all the user space
2533 * access to the HBA, whether they are from sysfs interface or libdfc
2534 * interface will be allowed. The HBA is set to block the management interface
2535 * when the driver prepares the HBA interface for online or offline and then
2536 * set to unblock the management interface afterwards.
2537 **/
46fa311e
JS		 2538void
2539lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2540{
2541 unsigned long iflag;
2542
2e0fef85
JS		 2543 spin_lock_irqsave(&phba->hbalock, iflag);
2544 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2545 spin_unlock_irqrestore(&phba->hbalock, iflag);
46fa311e
JS		 2546}
2547
e59058c4 2548/**
3621a710 2549 * lpfc_offline_prep - Prepare a HBA to be brought offline
e59058c4
JS		 2550 * @phba: pointer to lpfc hba data structure.
2551 *
2552 * This routine is invoked to prepare a HBA to be brought offline. It performs
2553 * unregistration login to all the nodes on all vports and flushes the mailbox
2554 * queue to make it ready to be brought offline.
2555 **/
46fa311e
JS		 2556void
2557lpfc_offline_prep(struct lpfc_hba * phba)
2558{
2e0fef85 2559 struct lpfc_vport *vport = phba->pport;
46fa311e 2560 struct lpfc_nodelist *ndlp, *next_ndlp;
87af33fe 2561 struct lpfc_vport **vports;
72100cc4 2562 struct Scsi_Host *shost;
87af33fe 2563 int i;
dea3101e 2564
2e0fef85 2565 if (vport->fc_flag & FC_OFFLINE_MODE)
46fa311e 2566 return;
dea3101e 2567
46fa311e 2568 lpfc_block_mgmt_io(phba);
dea3101e 2569
2570 lpfc_linkdown(phba);
2571
87af33fe
JS		 2572 /* Issue an unreg_login to all nodes on all vports */
2573 vports = lpfc_create_vport_work_array(phba);
2574 if (vports != NULL) {
da0436e9 2575 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
a8adb832
JS		 2576 if (vports[i]->load_flag & FC_UNLOADING)
2577 continue;
72100cc4
JS		 2578 shost = lpfc_shost_from_vport(vports[i]);
2579 spin_lock_irq(shost->host_lock);
c868595d 2580 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
695a814e
JS		 2581 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2582 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
72100cc4 2583 spin_unlock_irq(shost->host_lock);
695a814e 2584
87af33fe
JS		 2585 shost = lpfc_shost_from_vport(vports[i]);
2586 list_for_each_entry_safe(ndlp, next_ndlp,
2587 &vports[i]->fc_nodes,
2588 nlp_listp) {
e47c9093
JS		 2589 if (!NLP_CHK_NODE_ACT(ndlp))
2590 continue;
87af33fe
JS		 2591 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2592 continue;
2593 if (ndlp->nlp_type & NLP_FABRIC) {
2594 lpfc_disc_state_machine(vports[i], ndlp,
2595 NULL, NLP_EVT_DEVICE_RECOVERY);
2596 lpfc_disc_state_machine(vports[i], ndlp,
2597 NULL, NLP_EVT_DEVICE_RM);
2598 }
2599 spin_lock_irq(shost->host_lock);
2600 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2601 spin_unlock_irq(shost->host_lock);
2602 lpfc_unreg_rpi(vports[i], ndlp);
2603 }
2604 }
2605 }
09372820 2606 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 2607
04c68496 2608 lpfc_sli_mbox_sys_shutdown(phba);
46fa311e
JS		 2609}
2610
e59058c4 2611/**
3621a710 2612 * lpfc_offline - Bring a HBA offline
e59058c4
JS		 2613 * @phba: pointer to lpfc hba data structure.
2614 *
2615 * This routine actually brings a HBA offline. It stops all the timers
2616 * associated with the HBA, brings down the SLI layer, and eventually
2617 * marks the HBA as in offline state for the upper layer protocol.
2618 **/
46fa311e 2619void
2e0fef85 2620lpfc_offline(struct lpfc_hba *phba)
46fa311e 2621{
549e55cd
JS		 2622 struct Scsi_Host *shost;
2623 struct lpfc_vport **vports;
2624 int i;
46fa311e 2625
549e55cd 2626 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
46fa311e 2627 return;
688a8863 2628
da0436e9
JS		 2629 /* stop port and all timers associated with this hba */
2630 lpfc_stop_port(phba);
51ef4c26
JS		 2631 vports = lpfc_create_vport_work_array(phba);
2632 if (vports != NULL)
da0436e9 2633 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
51ef4c26 2634 lpfc_stop_vport_timers(vports[i]);
09372820 2635 lpfc_destroy_vport_work_array(phba, vports);
92d7f7b0 2636 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
e8b62011 2637 "0460 Bring Adapter offline\n");
dea3101e 2638 /* Bring down the SLI Layer and cleanup. The HBA is offline
2639 now. */
2640 lpfc_sli_hba_down(phba);
92d7f7b0 2641 spin_lock_irq(&phba->hbalock);
7054a606 2642 phba->work_ha = 0;
92d7f7b0 2643 spin_unlock_irq(&phba->hbalock);
549e55cd
JS		 2644 vports = lpfc_create_vport_work_array(phba);
2645 if (vports != NULL)
da0436e9 2646 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
549e55cd 2647 shost = lpfc_shost_from_vport(vports[i]);
549e55cd
JS		 2648 spin_lock_irq(shost->host_lock);
2649 vports[i]->work_port_events = 0;
2650 vports[i]->fc_flag |= FC_OFFLINE_MODE;
2651 spin_unlock_irq(shost->host_lock);
2652 }
09372820 2653 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 2654}
2655
e59058c4 2656/**
3621a710 2657 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
e59058c4
JS		 2658 * @phba: pointer to lpfc hba data structure.
2659 *
2660 * This routine is to free all the SCSI buffers and IOCBs from the driver
2661 * list back to kernel. It is called from lpfc_pci_remove_one to free
2662 * the internal resources before the device is removed from the system.
2663 *
2664 * Return codes
2665 * 0 - successful (for now, it always returns 0)
2666 **/
dea3101e 2667static int
2e0fef85 2668lpfc_scsi_free(struct lpfc_hba *phba)
dea3101e 2669{
2670 struct lpfc_scsi_buf *sb, *sb_next;
2671 struct lpfc_iocbq *io, *io_next;
2672
2e0fef85 2673 spin_lock_irq(&phba->hbalock);
dea3101e 2674 /* Release all the lpfc_scsi_bufs maintained by this host. */
1c6f4ef5 2675 spin_lock(&phba->scsi_buf_list_lock);
dea3101e 2676 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2677 list_del(&sb->list);
2678 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
92d7f7b0 2679 sb->dma_handle);
dea3101e 2680 kfree(sb);
2681 phba->total_scsi_bufs--;
2682 }
1c6f4ef5 2683 spin_unlock(&phba->scsi_buf_list_lock);
dea3101e 2684
2685 /* Release all the lpfc_iocbq entries maintained by this host. */
2686 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2687 list_del(&io->list);
2688 kfree(io);
2689 phba->total_iocbq_bufs--;
2690 }
6d368e53 2691
2e0fef85 2692 spin_unlock_irq(&phba->hbalock);
dea3101e 2693 return 0;
2694}
2695
e59058c4 2696/**
3621a710 2697 * lpfc_create_port - Create an FC port
e59058c4
JS		 2698 * @phba: pointer to lpfc hba data structure.
2699 * @instance: a unique integer ID to this FC port.
2700 * @dev: pointer to the device data structure.
2701 *
2702 * This routine creates a FC port for the upper layer protocol. The FC port
2703 * can be created on top of either a physical port or a virtual port provided
2704 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2705 * and associates the FC port created before adding the shost into the SCSI
2706 * layer.
2707 *
2708 * Return codes
2709 * @vport - pointer to the virtual N_Port data structure.
2710 * NULL - port create failed.
2711 **/
2e0fef85 2712struct lpfc_vport *
3de2a653 2713lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
47a8617c 2714{
2e0fef85
JS		 2715 struct lpfc_vport *vport;
2716 struct Scsi_Host *shost;
2717 int error = 0;
47a8617c 2718
3de2a653
JS		 2719 if (dev != &phba->pcidev->dev)
2720 shost = scsi_host_alloc(&lpfc_vport_template,
2721 sizeof(struct lpfc_vport));
2722 else
2723 shost = scsi_host_alloc(&lpfc_template,
2724 sizeof(struct lpfc_vport));
2e0fef85
JS		 2725 if (!shost)
2726 goto out;
47a8617c 2727
2e0fef85
JS		 2728 vport = (struct lpfc_vport *) shost->hostdata;
2729 vport->phba = phba;
2e0fef85 2730 vport->load_flag |= FC_LOADING;
92d7f7b0 2731 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
7f5f3d0d 2732 vport->fc_rscn_flush = 0;
47a8617c 2733
3de2a653 2734 lpfc_get_vport_cfgparam(vport);
2e0fef85
JS		 2735 shost->unique_id = instance;
2736 shost->max_id = LPFC_MAX_TARGET;
3de2a653 2737 shost->max_lun = vport->cfg_max_luns;
2e0fef85
JS		 2738 shost->this_id = -1;
2739 shost->max_cmd_len = 16;
da0436e9 2740 if (phba->sli_rev == LPFC_SLI_REV4) {
28baac74 2741 shost->dma_boundary =
cb5172ea 2742 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
da0436e9
JS		 2743 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2744 }
81301a9b 2745
47a8617c 2746 /*
2e0fef85
JS		 2747 * Set initial can_queue value since 0 is no longer supported and
2748 * scsi_add_host will fail. This will be adjusted later based on the
2749 * max xri value determined in hba setup.
47a8617c 2750 */
2e0fef85 2751 shost->can_queue = phba->cfg_hba_queue_depth - 10;
3de2a653 2752 if (dev != &phba->pcidev->dev) {
92d7f7b0
JS		 2753 shost->transportt = lpfc_vport_transport_template;
2754 vport->port_type = LPFC_NPIV_PORT;
2755 } else {
2756 shost->transportt = lpfc_transport_template;
2757 vport->port_type = LPFC_PHYSICAL_PORT;
2758 }
47a8617c 2759
2e0fef85
JS		 2760 /* Initialize all internally managed lists. */
2761 INIT_LIST_HEAD(&vport->fc_nodes);
da0436e9 2762 INIT_LIST_HEAD(&vport->rcv_buffer_list);
2e0fef85 2763 spin_lock_init(&vport->work_port_lock);
47a8617c 2764
2e0fef85
JS		 2765 init_timer(&vport->fc_disctmo);
2766 vport->fc_disctmo.function = lpfc_disc_timeout;
92d7f7b0 2767 vport->fc_disctmo.data = (unsigned long)vport;
47a8617c 2768
2e0fef85
JS		 2769 init_timer(&vport->fc_fdmitmo);
2770 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
92d7f7b0 2771 vport->fc_fdmitmo.data = (unsigned long)vport;
47a8617c 2772
2e0fef85
JS		 2773 init_timer(&vport->els_tmofunc);
2774 vport->els_tmofunc.function = lpfc_els_timeout;
92d7f7b0 2775 vport->els_tmofunc.data = (unsigned long)vport;
92494144
JS		 2776
2777 init_timer(&vport->delayed_disc_tmo);
2778 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
2779 vport->delayed_disc_tmo.data = (unsigned long)vport;
2780
d139b9bd 2781 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2e0fef85
JS		 2782 if (error)
2783 goto out_put_shost;
47a8617c 2784
549e55cd 2785 spin_lock_irq(&phba->hbalock);
2e0fef85 2786 list_add_tail(&vport->listentry, &phba->port_list);
549e55cd 2787 spin_unlock_irq(&phba->hbalock);
2e0fef85 2788 return vport;
47a8617c 2789
2e0fef85
JS		 2790out_put_shost:
2791 scsi_host_put(shost);
2792out:
2793 return NULL;
47a8617c
JS		 2794}
2795
e59058c4 2796/**
3621a710 2797 * destroy_port - destroy an FC port
e59058c4
JS		 2798 * @vport: pointer to an lpfc virtual N_Port data structure.
2799 *
2800 * This routine destroys a FC port from the upper layer protocol. All the
2801 * resources associated with the port are released.
2802 **/
2e0fef85
JS		 2803void
2804destroy_port(struct lpfc_vport *vport)
47a8617c 2805{
92d7f7b0
JS		 2806 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2807 struct lpfc_hba *phba = vport->phba;
47a8617c 2808
858c9f6c 2809 lpfc_debugfs_terminate(vport);
92d7f7b0
JS		 2810 fc_remove_host(shost);
2811 scsi_remove_host(shost);
47a8617c 2812
92d7f7b0
JS		 2813 spin_lock_irq(&phba->hbalock);
2814 list_del_init(&vport->listentry);
2815 spin_unlock_irq(&phba->hbalock);
47a8617c 2816
92d7f7b0 2817 lpfc_cleanup(vport);
47a8617c 2818 return;
47a8617c
JS		 2819}
2820
e59058c4 2821/**
3621a710 2822 * lpfc_get_instance - Get a unique integer ID
e59058c4
JS		 2823 *
2824 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2825 * uses the kernel idr facility to perform the task.
2826 *
2827 * Return codes:
2828 * instance - a unique integer ID allocated as the new instance.
2829 * -1 - lpfc get instance failed.
2830 **/
92d7f7b0
JS		 2831int
2832lpfc_get_instance(void)
2833{
2834 int instance = 0;
47a8617c 2835
92d7f7b0
JS		 2836 /* Assign an unused number */
2837 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2838 return -1;
2839 if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2840 return -1;
2841 return instance;
47a8617c
JS		 2842}
2843
e59058c4 2844/**
3621a710 2845 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
e59058c4
JS		 2846 * @shost: pointer to SCSI host data structure.
2847 * @time: elapsed time of the scan in jiffies.
2848 *
2849 * This routine is called by the SCSI layer with a SCSI host to determine
2850 * whether the scan host is finished.
2851 *
2852 * Note: there is no scan_start function as adapter initialization will have
2853 * asynchronously kicked off the link initialization.
2854 *
2855 * Return codes
2856 * 0 - SCSI host scan is not over yet.
2857 * 1 - SCSI host scan is over.
2858 **/
47a8617c
JS		 2859int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2860{
2e0fef85
JS		 2861 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2862 struct lpfc_hba *phba = vport->phba;
858c9f6c 2863 int stat = 0;
47a8617c 2864
858c9f6c
JS		 2865 spin_lock_irq(shost->host_lock);
2866
51ef4c26 2867 if (vport->load_flag & FC_UNLOADING) {
858c9f6c
JS		 2868 stat = 1;
2869 goto finished;
2870 }
2e0fef85
JS		 2871 if (time >= 30 * HZ) {
2872 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011
JS		 2873 "0461 Scanning longer than 30 "
2874 "seconds. Continuing initialization\n");
858c9f6c 2875 stat = 1;
47a8617c 2876 goto finished;
2e0fef85
JS		 2877 }
2878 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2879 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011
JS		 2880 "0465 Link down longer than 15 "
2881 "seconds. Continuing initialization\n");
858c9f6c 2882 stat = 1;
47a8617c 2883 goto finished;
2e0fef85 2884 }
47a8617c 2885
2e0fef85 2886 if (vport->port_state != LPFC_VPORT_READY)
858c9f6c 2887 goto finished;
2e0fef85 2888 if (vport->num_disc_nodes || vport->fc_prli_sent)
858c9f6c 2889 goto finished;
2e0fef85 2890 if (vport->fc_map_cnt == 0 && time < 2 * HZ)
858c9f6c 2891 goto finished;
2e0fef85 2892 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
858c9f6c
JS		 2893 goto finished;
2894
2895 stat = 1;
47a8617c
JS		 2896
2897finished:
858c9f6c
JS		 2898 spin_unlock_irq(shost->host_lock);
2899 return stat;
92d7f7b0 2900}
47a8617c 2901
e59058c4 2902/**
3621a710 2903 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
e59058c4
JS		 2904 * @shost: pointer to SCSI host data structure.
2905 *
2906 * This routine initializes a given SCSI host attributes on a FC port. The
2907 * SCSI host can be either on top of a physical port or a virtual port.
2908 **/
92d7f7b0
JS		 2909void lpfc_host_attrib_init(struct Scsi_Host *shost)
2910{
2911 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2912 struct lpfc_hba *phba = vport->phba;
47a8617c 2913 /*
2e0fef85 2914 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
47a8617c
JS		 2915 */
2916
2e0fef85
JS		 2917 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2918 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
47a8617c
JS		 2919 fc_host_supported_classes(shost) = FC_COS_CLASS3;
2920
2921 memset(fc_host_supported_fc4s(shost), 0,
2e0fef85 2922 sizeof(fc_host_supported_fc4s(shost)));
47a8617c
JS		 2923 fc_host_supported_fc4s(shost)[2] = 1;
2924 fc_host_supported_fc4s(shost)[7] = 1;
2925
92d7f7b0
JS		 2926 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2927 sizeof fc_host_symbolic_name(shost));
47a8617c
JS		 2928
2929 fc_host_supported_speeds(shost) = 0;
88a2cfbb
JS		 2930 if (phba->lmt & LMT_16Gb)
2931 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
47a8617c
JS		 2932 if (phba->lmt & LMT_10Gb)
2933 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
a8adb832
JS		 2934 if (phba->lmt & LMT_8Gb)
2935 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
47a8617c
JS		 2936 if (phba->lmt & LMT_4Gb)
2937 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2938 if (phba->lmt & LMT_2Gb)
2939 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2940 if (phba->lmt & LMT_1Gb)
2941 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2942
2943 fc_host_maxframe_size(shost) =
2e0fef85
JS		 2944 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2945 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
47a8617c 2946
0af5d708
MC		 2947 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
2948
47a8617c
JS		 2949 /* This value is also unchanging */
2950 memset(fc_host_active_fc4s(shost), 0,
2e0fef85 2951 sizeof(fc_host_active_fc4s(shost)));
47a8617c
JS		 2952 fc_host_active_fc4s(shost)[2] = 1;
2953 fc_host_active_fc4s(shost)[7] = 1;
2954
92d7f7b0 2955 fc_host_max_npiv_vports(shost) = phba->max_vpi;
47a8617c 2956 spin_lock_irq(shost->host_lock);
51ef4c26 2957 vport->load_flag &= ~FC_LOADING;
47a8617c 2958 spin_unlock_irq(shost->host_lock);
47a8617c 2959}
dea3101e 2960
e59058c4 2961/**
da0436e9 2962 * lpfc_stop_port_s3 - Stop SLI3 device port
e59058c4
JS		 2963 * @phba: pointer to lpfc hba data structure.
2964 *
da0436e9
JS		 2965 * This routine is invoked to stop an SLI3 device port, it stops the device
2966 * from generating interrupts and stops the device driver's timers for the
2967 * device.
e59058c4 2968 **/
da0436e9
JS		 2969static void
2970lpfc_stop_port_s3(struct lpfc_hba *phba)
db2378e0 2971{
da0436e9
JS		 2972 /* Clear all interrupt enable conditions */
2973 writel(0, phba->HCregaddr);
2974 readl(phba->HCregaddr); /* flush */
2975 /* Clear all pending interrupts */
2976 writel(0xffffffff, phba->HAregaddr);
2977 readl(phba->HAregaddr); /* flush */
db2378e0 2978
da0436e9
JS		 2979 /* Reset some HBA SLI setup states */
2980 lpfc_stop_hba_timers(phba);
2981 phba->pport->work_port_events = 0;
2982}
db2378e0 2983
da0436e9
JS		 2984/**
2985 * lpfc_stop_port_s4 - Stop SLI4 device port
2986 * @phba: pointer to lpfc hba data structure.
2987 *
2988 * This routine is invoked to stop an SLI4 device port, it stops the device
2989 * from generating interrupts and stops the device driver's timers for the
2990 * device.
2991 **/
2992static void
2993lpfc_stop_port_s4(struct lpfc_hba *phba)
2994{
2995 /* Reset some HBA SLI4 setup states */
2996 lpfc_stop_hba_timers(phba);
2997 phba->pport->work_port_events = 0;
2998 phba->sli4_hba.intr_enable = 0;
da0436e9 2999}
9399627f 3000
da0436e9
JS		 3001/**
3002 * lpfc_stop_port - Wrapper function for stopping hba port
3003 * @phba: Pointer to HBA context object.
3004 *
3005 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3006 * the API jump table function pointer from the lpfc_hba struct.
3007 **/
3008void
3009lpfc_stop_port(struct lpfc_hba *phba)
3010{
3011 phba->lpfc_stop_port(phba);
3012}
db2378e0 3013
ecfd03c6
JS		 3014/**
3015 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3016 * @phba: Pointer to hba for which this call is being executed.
3017 *
3018 * This routine starts the timer waiting for the FCF rediscovery to complete.
3019 **/
3020void
3021lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3022{
3023 unsigned long fcf_redisc_wait_tmo =
3024 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3025 /* Start fcf rediscovery wait period timer */
3026 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3027 spin_lock_irq(&phba->hbalock);
3028 /* Allow action to new fcf asynchronous event */
3029 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3030 /* Mark the FCF rediscovery pending state */
3031 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3032 spin_unlock_irq(&phba->hbalock);
3033}
3034
3035/**
3036 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3037 * @ptr: Map to lpfc_hba data structure pointer.
3038 *
3039 * This routine is invoked when waiting for FCF table rediscover has been
3040 * timed out. If new FCF record(s) has (have) been discovered during the
3041 * wait period, a new FCF event shall be added to the FCOE async event
3042 * list, and then worker thread shall be waked up for processing from the
3043 * worker thread context.
3044 **/
3045void
3046lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3047{
3048 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3049
3050 /* Don't send FCF rediscovery event if timer cancelled */
3051 spin_lock_irq(&phba->hbalock);
3052 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3053 spin_unlock_irq(&phba->hbalock);
3054 return;
3055 }
3056 /* Clear FCF rediscovery timer pending flag */
3057 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3058 /* FCF rediscovery event to worker thread */
3059 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3060 spin_unlock_irq(&phba->hbalock);
0c9ab6f5 3061 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
a93ff37a 3062 "2776 FCF rediscover quiescent timer expired\n");
ecfd03c6
JS		 3063 /* wake up worker thread */
3064 lpfc_worker_wake_up(phba);
3065}
3066
e59058c4 3067/**
da0436e9 3068 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
e59058c4 3069 * @phba: pointer to lpfc hba data structure.
da0436e9 3070 * @acqe_link: pointer to the async link completion queue entry.
e59058c4 3071 *
da0436e9
JS		 3072 * This routine is to parse the SLI4 link-attention link fault code and
3073 * translate it into the base driver's read link attention mailbox command
3074 * status.
3075 *
3076 * Return: Link-attention status in terms of base driver's coding.
e59058c4 3077 **/
da0436e9
JS		 3078static uint16_t
3079lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3080 struct lpfc_acqe_link *acqe_link)
db2378e0 3081{
da0436e9 3082 uint16_t latt_fault;
9399627f 3083
da0436e9
JS		 3084 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3085 case LPFC_ASYNC_LINK_FAULT_NONE:
3086 case LPFC_ASYNC_LINK_FAULT_LOCAL:
3087 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3088 latt_fault = 0;
3089 break;
3090 default:
3091 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3092 "0398 Invalid link fault code: x%x\n",
3093 bf_get(lpfc_acqe_link_fault, acqe_link));
3094 latt_fault = MBXERR_ERROR;
3095 break;
3096 }
3097 return latt_fault;
db2378e0
JS		 3098}
3099
5b75da2f 3100/**
da0436e9 3101 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
5b75da2f 3102 * @phba: pointer to lpfc hba data structure.
da0436e9 3103 * @acqe_link: pointer to the async link completion queue entry.
5b75da2f 3104 *
da0436e9
JS		 3105 * This routine is to parse the SLI4 link attention type and translate it
3106 * into the base driver's link attention type coding.
5b75da2f 3107 *
da0436e9
JS		 3108 * Return: Link attention type in terms of base driver's coding.
3109 **/
3110static uint8_t
3111lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3112 struct lpfc_acqe_link *acqe_link)
5b75da2f 3113{
da0436e9 3114 uint8_t att_type;
5b75da2f 3115
da0436e9
JS		 3116 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3117 case LPFC_ASYNC_LINK_STATUS_DOWN:
3118 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
76a95d75 3119 att_type = LPFC_ATT_LINK_DOWN;
da0436e9
JS		 3120 break;
3121 case LPFC_ASYNC_LINK_STATUS_UP:
3122 /* Ignore physical link up events - wait for logical link up */
76a95d75 3123 att_type = LPFC_ATT_RESERVED;
da0436e9
JS		 3124 break;
3125 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
76a95d75 3126 att_type = LPFC_ATT_LINK_UP;
da0436e9
JS		 3127 break;
3128 default:
3129 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3130 "0399 Invalid link attention type: x%x\n",
3131 bf_get(lpfc_acqe_link_status, acqe_link));
76a95d75 3132 att_type = LPFC_ATT_RESERVED;
da0436e9 3133 break;
5b75da2f 3134 }
da0436e9 3135 return att_type;
5b75da2f
JS		 3136}
3137
3138/**
da0436e9 3139 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
5b75da2f 3140 * @phba: pointer to lpfc hba data structure.
da0436e9 3141 * @acqe_link: pointer to the async link completion queue entry.
5b75da2f 3142 *
da0436e9
JS		 3143 * This routine is to parse the SLI4 link-attention link speed and translate
3144 * it into the base driver's link-attention link speed coding.
3145 *
3146 * Return: Link-attention link speed in terms of base driver's coding.
3147 **/
3148static uint8_t
3149lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3150 struct lpfc_acqe_link *acqe_link)
5b75da2f 3151{
da0436e9
JS		 3152 uint8_t link_speed;
3153
3154 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3155 case LPFC_ASYNC_LINK_SPEED_ZERO:
da0436e9 3156 case LPFC_ASYNC_LINK_SPEED_10MBPS:
da0436e9 3157 case LPFC_ASYNC_LINK_SPEED_100MBPS:
76a95d75 3158 link_speed = LPFC_LINK_SPEED_UNKNOWN;
da0436e9
JS		 3159 break;
3160 case LPFC_ASYNC_LINK_SPEED_1GBPS:
76a95d75 3161 link_speed = LPFC_LINK_SPEED_1GHZ;
da0436e9
JS		 3162 break;
3163 case LPFC_ASYNC_LINK_SPEED_10GBPS:
76a95d75 3164 link_speed = LPFC_LINK_SPEED_10GHZ;
da0436e9
JS		 3165 break;
3166 default:
3167 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3168 "0483 Invalid link-attention link speed: x%x\n",
3169 bf_get(lpfc_acqe_link_speed, acqe_link));
76a95d75 3170 link_speed = LPFC_LINK_SPEED_UNKNOWN;
da0436e9
JS		 3171 break;
3172 }
3173 return link_speed;
3174}
3175
3176/**
70f3c073 3177 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
da0436e9
JS		 3178 * @phba: pointer to lpfc hba data structure.
3179 * @acqe_link: pointer to the async link completion queue entry.
3180 *
70f3c073 3181 * This routine is to handle the SLI4 asynchronous FCoE link event.
da0436e9
JS		 3182 **/
3183static void
3184lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3185 struct lpfc_acqe_link *acqe_link)
3186{
3187 struct lpfc_dmabuf *mp;
3188 LPFC_MBOXQ_t *pmb;
3189 MAILBOX_t *mb;
76a95d75 3190 struct lpfc_mbx_read_top *la;
da0436e9 3191 uint8_t att_type;
76a95d75 3192 int rc;
da0436e9
JS		 3193
3194 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
76a95d75 3195 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
da0436e9 3196 return;
32b9793f 3197 phba->fcoe_eventtag = acqe_link->event_tag;
da0436e9
JS		 3198 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3199 if (!pmb) {
3200 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3201 "0395 The mboxq allocation failed\n");
3202 return;
3203 }
3204 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3205 if (!mp) {
3206 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3207 "0396 The lpfc_dmabuf allocation failed\n");
3208 goto out_free_pmb;
3209 }
3210 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3211 if (!mp->virt) {
3212 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3213 "0397 The mbuf allocation failed\n");
3214 goto out_free_dmabuf;
3215 }
3216
3217 /* Cleanup any outstanding ELS commands */
3218 lpfc_els_flush_all_cmd(phba);
3219
3220 /* Block ELS IOCBs until we have done process link event */
3221 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3222
3223 /* Update link event statistics */
3224 phba->sli.slistat.link_event++;
3225
76a95d75
JS		 3226 /* Create lpfc_handle_latt mailbox command from link ACQE */
3227 lpfc_read_topology(phba, pmb, mp);
3228 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
da0436e9
JS		 3229 pmb->vport = phba->pport;
3230
da0436e9
JS		 3231 /* Keep the link status for extra SLI4 state machine reference */
3232 phba->sli4_hba.link_state.speed =
3233 bf_get(lpfc_acqe_link_speed, acqe_link);
3234 phba->sli4_hba.link_state.duplex =
3235 bf_get(lpfc_acqe_link_duplex, acqe_link);
3236 phba->sli4_hba.link_state.status =
3237 bf_get(lpfc_acqe_link_status, acqe_link);
70f3c073
JS		 3238 phba->sli4_hba.link_state.type =
3239 bf_get(lpfc_acqe_link_type, acqe_link);
3240 phba->sli4_hba.link_state.number =
3241 bf_get(lpfc_acqe_link_number, acqe_link);
da0436e9
JS		 3242 phba->sli4_hba.link_state.fault =
3243 bf_get(lpfc_acqe_link_fault, acqe_link);
65467b6b 3244 phba->sli4_hba.link_state.logical_speed =
70f3c073
JS		 3245 bf_get(lpfc_acqe_logical_link_speed, acqe_link);
3246 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
c31098ce
JS		 3247 "2900 Async FC/FCoE Link event - Speed:%dGBit "
3248 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3249 "Logical speed:%dMbps Fault:%d\n",
70f3c073
JS		 3250 phba->sli4_hba.link_state.speed,
3251 phba->sli4_hba.link_state.topology,
3252 phba->sli4_hba.link_state.status,
3253 phba->sli4_hba.link_state.type,
3254 phba->sli4_hba.link_state.number,
3255 phba->sli4_hba.link_state.logical_speed * 10,
3256 phba->sli4_hba.link_state.fault);
76a95d75
JS		 3257 /*
3258 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3259 * topology info. Note: Optional for non FC-AL ports.
3260 */
3261 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3262 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3263 if (rc == MBX_NOT_FINISHED)
3264 goto out_free_dmabuf;
3265 return;
3266 }
3267 /*
3268 * For FCoE Mode: fill in all the topology information we need and call
3269 * the READ_TOPOLOGY completion routine to continue without actually
3270 * sending the READ_TOPOLOGY mailbox command to the port.
3271 */
3272 /* Parse and translate status field */
3273 mb = &pmb->u.mb;
3274 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3275
3276 /* Parse and translate link attention fields */
3277 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3278 la->eventTag = acqe_link->event_tag;
3279 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3280 bf_set(lpfc_mbx_read_top_link_spd, la,
3281 lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3282
3283 /* Fake the the following irrelvant fields */
3284 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3285 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3286 bf_set(lpfc_mbx_read_top_il, la, 0);
3287 bf_set(lpfc_mbx_read_top_pb, la, 0);
3288 bf_set(lpfc_mbx_read_top_fa, la, 0);
3289 bf_set(lpfc_mbx_read_top_mm, la, 0);
da0436e9
JS		 3290
3291 /* Invoke the lpfc_handle_latt mailbox command callback function */
76a95d75 3292 lpfc_mbx_cmpl_read_topology(phba, pmb);
da0436e9 3293
5b75da2f 3294 return;
da0436e9
JS		 3295
3296out_free_dmabuf:
3297 kfree(mp);
3298out_free_pmb:
3299 mempool_free(pmb, phba->mbox_mem_pool);
3300}
3301
70f3c073
JS		 3302/**
3303 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3304 * @phba: pointer to lpfc hba data structure.
3305 * @acqe_fc: pointer to the async fc completion queue entry.
3306 *
3307 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3308 * that the event was received and then issue a read_topology mailbox command so
3309 * that the rest of the driver will treat it the same as SLI3.
3310 **/
3311static void
3312lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3313{
3314 struct lpfc_dmabuf *mp;
3315 LPFC_MBOXQ_t *pmb;
3316 int rc;
3317
3318 if (bf_get(lpfc_trailer_type, acqe_fc) !=
3319 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3320 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3321 "2895 Non FC link Event detected.(%d)\n",
3322 bf_get(lpfc_trailer_type, acqe_fc));
3323 return;
3324 }
3325 /* Keep the link status for extra SLI4 state machine reference */
3326 phba->sli4_hba.link_state.speed =
3327 bf_get(lpfc_acqe_fc_la_speed, acqe_fc);
3328 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3329 phba->sli4_hba.link_state.topology =
3330 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3331 phba->sli4_hba.link_state.status =
3332 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3333 phba->sli4_hba.link_state.type =
3334 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3335 phba->sli4_hba.link_state.number =
3336 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3337 phba->sli4_hba.link_state.fault =
3338 bf_get(lpfc_acqe_link_fault, acqe_fc);
3339 phba->sli4_hba.link_state.logical_speed =
3340 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
3341 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3342 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3343 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3344 "%dMbps Fault:%d\n",
3345 phba->sli4_hba.link_state.speed,
3346 phba->sli4_hba.link_state.topology,
3347 phba->sli4_hba.link_state.status,
3348 phba->sli4_hba.link_state.type,
3349 phba->sli4_hba.link_state.number,
3350 phba->sli4_hba.link_state.logical_speed * 10,
3351 phba->sli4_hba.link_state.fault);
3352 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3353 if (!pmb) {
3354 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3355 "2897 The mboxq allocation failed\n");
3356 return;
3357 }
3358 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3359 if (!mp) {
3360 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3361 "2898 The lpfc_dmabuf allocation failed\n");
3362 goto out_free_pmb;
3363 }
3364 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3365 if (!mp->virt) {
3366 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3367 "2899 The mbuf allocation failed\n");
3368 goto out_free_dmabuf;
3369 }
3370
3371 /* Cleanup any outstanding ELS commands */
3372 lpfc_els_flush_all_cmd(phba);
3373
3374 /* Block ELS IOCBs until we have done process link event */
3375 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3376
3377 /* Update link event statistics */
3378 phba->sli.slistat.link_event++;
3379
3380 /* Create lpfc_handle_latt mailbox command from link ACQE */
3381 lpfc_read_topology(phba, pmb, mp);
3382 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3383 pmb->vport = phba->pport;
3384
3385 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3386 if (rc == MBX_NOT_FINISHED)
3387 goto out_free_dmabuf;
3388 return;
3389
3390out_free_dmabuf:
3391 kfree(mp);
3392out_free_pmb:
3393 mempool_free(pmb, phba->mbox_mem_pool);
3394}
3395
3396/**
3397 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3398 * @phba: pointer to lpfc hba data structure.
3399 * @acqe_fc: pointer to the async SLI completion queue entry.
3400 *
3401 * This routine is to handle the SLI4 asynchronous SLI events.
3402 **/
3403static void
3404lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3405{
3406 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3407 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3408 "x%08x SLI Event Type:%d",
3409 acqe_sli->event_data1, acqe_sli->event_data2,
3410 bf_get(lpfc_trailer_type, acqe_sli));
3411 return;
3412}
3413
fc2b989b
JS		 3414/**
3415 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3416 * @vport: pointer to vport data structure.
3417 *
3418 * This routine is to perform Clear Virtual Link (CVL) on a vport in
3419 * response to a CVL event.
3420 *
3421 * Return the pointer to the ndlp with the vport if successful, otherwise
3422 * return NULL.
3423 **/
3424static struct lpfc_nodelist *
3425lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3426{
3427 struct lpfc_nodelist *ndlp;
3428 struct Scsi_Host *shost;
3429 struct lpfc_hba *phba;
3430
3431 if (!vport)
3432 return NULL;
fc2b989b
JS		 3433 phba = vport->phba;
3434 if (!phba)
3435 return NULL;
78730cfe
JS		 3436 ndlp = lpfc_findnode_did(vport, Fabric_DID);
3437 if (!ndlp) {
3438 /* Cannot find existing Fabric ndlp, so allocate a new one */
3439 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3440 if (!ndlp)
3441 return 0;
3442 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3443 /* Set the node type */
3444 ndlp->nlp_type |= NLP_FABRIC;
3445 /* Put ndlp onto node list */
3446 lpfc_enqueue_node(vport, ndlp);
3447 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3448 /* re-setup ndlp without removing from node list */
3449 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3450 if (!ndlp)
3451 return 0;
3452 }
63e801ce
JS		 3453 if ((phba->pport->port_state < LPFC_FLOGI) &&
3454 (phba->pport->port_state != LPFC_VPORT_FAILED))
fc2b989b
JS		 3455 return NULL;
3456 /* If virtual link is not yet instantiated ignore CVL */
63e801ce
JS		 3457 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
3458 && (vport->port_state != LPFC_VPORT_FAILED))
fc2b989b
JS		 3459 return NULL;
3460 shost = lpfc_shost_from_vport(vport);
3461 if (!shost)
3462 return NULL;
3463 lpfc_linkdown_port(vport);
3464 lpfc_cleanup_pending_mbox(vport);
3465 spin_lock_irq(shost->host_lock);
3466 vport->fc_flag |= FC_VPORT_CVL_RCVD;
3467 spin_unlock_irq(shost->host_lock);
3468
3469 return ndlp;
3470}
3471
3472/**
3473 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3474 * @vport: pointer to lpfc hba data structure.
3475 *
3476 * This routine is to perform Clear Virtual Link (CVL) on all vports in
3477 * response to a FCF dead event.
3478 **/
3479static void
3480lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3481{
3482 struct lpfc_vport **vports;
3483 int i;
3484
3485 vports = lpfc_create_vport_work_array(phba);
3486 if (vports)
3487 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3488 lpfc_sli4_perform_vport_cvl(vports[i]);
3489 lpfc_destroy_vport_work_array(phba, vports);
3490}
3491
da0436e9 3492/**
76a95d75 3493 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
da0436e9
JS		 3494 * @phba: pointer to lpfc hba data structure.
3495 * @acqe_link: pointer to the async fcoe completion queue entry.
3496 *
3497 * This routine is to handle the SLI4 asynchronous fcoe event.
3498 **/
3499static void
76a95d75 3500lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
70f3c073 3501 struct lpfc_acqe_fip *acqe_fip)
da0436e9 3502{
70f3c073 3503 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
da0436e9 3504 int rc;
6669f9bb
JS		 3505 struct lpfc_vport *vport;
3506 struct lpfc_nodelist *ndlp;
3507 struct Scsi_Host *shost;
695a814e
JS		 3508 int active_vlink_present;
3509 struct lpfc_vport **vports;
3510 int i;
da0436e9 3511
70f3c073
JS		 3512 phba->fc_eventTag = acqe_fip->event_tag;
3513 phba->fcoe_eventtag = acqe_fip->event_tag;
da0436e9 3514 switch (event_type) {
70f3c073
JS		 3515 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
3516 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
3517 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
999d813f
JS		 3518 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3519 LOG_DISCOVERY,
a93ff37a
JS		 3520 "2546 New FCF event, evt_tag:x%x, "
3521 "index:x%x\n",
70f3c073
JS		 3522 acqe_fip->event_tag,
3523 acqe_fip->index);
999d813f
JS		 3524 else
3525 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3526 LOG_DISCOVERY,
a93ff37a
JS		 3527 "2788 FCF param modified event, "
3528 "evt_tag:x%x, index:x%x\n",
70f3c073
JS		 3529 acqe_fip->event_tag,
3530 acqe_fip->index);
38b92ef8 3531 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
0c9ab6f5
JS		 3532 /*
3533 * During period of FCF discovery, read the FCF
3534 * table record indexed by the event to update
a93ff37a 3535 * FCF roundrobin failover eligible FCF bmask.
0c9ab6f5
JS		 3536 */
3537 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3538 LOG_DISCOVERY,
a93ff37a
JS		 3539 "2779 Read FCF (x%x) for updating "
3540 "roundrobin FCF failover bmask\n",
70f3c073
JS		 3541 acqe_fip->index);
3542 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
0c9ab6f5 3543 }
38b92ef8
JS		 3544
3545 /* If the FCF discovery is in progress, do nothing. */
3804dc84 3546 spin_lock_irq(&phba->hbalock);
a93ff37a 3547 if (phba->hba_flag & FCF_TS_INPROG) {
38b92ef8
JS		 3548 spin_unlock_irq(&phba->hbalock);
3549 break;
3550 }
3551 /* If fast FCF failover rescan event is pending, do nothing */
3552 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3553 spin_unlock_irq(&phba->hbalock);
3554 break;
3555 }
3556
3557 /* If the FCF has been in discovered state, do nothing. */
3804dc84
JS		 3558 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
3559 spin_unlock_irq(&phba->hbalock);
3560 break;
3561 }
3562 spin_unlock_irq(&phba->hbalock);
38b92ef8 3563
0c9ab6f5
JS		 3564 /* Otherwise, scan the entire FCF table and re-discover SAN */
3565 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
a93ff37a
JS		 3566 "2770 Start FCF table scan per async FCF "
3567 "event, evt_tag:x%x, index:x%x\n",
70f3c073 3568 acqe_fip->event_tag, acqe_fip->index);
0c9ab6f5
JS		 3569 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3570 LPFC_FCOE_FCF_GET_FIRST);
da0436e9 3571 if (rc)
0c9ab6f5
JS		 3572 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3573 "2547 Issue FCF scan read FCF mailbox "
a93ff37a 3574 "command failed (x%x)\n", rc);
da0436e9
JS		 3575 break;
3576
70f3c073 3577 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
da0436e9 3578 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
e4e74273 3579 "2548 FCF Table full count 0x%x tag 0x%x\n",
70f3c073
JS		 3580 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
3581 acqe_fip->event_tag);
da0436e9
JS		 3582 break;
3583
70f3c073 3584 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
0c9ab6f5 3585 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
a93ff37a 3586 "2549 FCF (x%x) disconnected from network, "
70f3c073 3587 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
38b92ef8
JS		 3588 /*
3589 * If we are in the middle of FCF failover process, clear
3590 * the corresponding FCF bit in the roundrobin bitmap.
da0436e9 3591 */
fc2b989b 3592 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3593 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
fc2b989b 3594 spin_unlock_irq(&phba->hbalock);
0c9ab6f5 3595 /* Update FLOGI FCF failover eligible FCF bmask */
70f3c073 3596 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
fc2b989b
JS		 3597 break;
3598 }
38b92ef8
JS		 3599 spin_unlock_irq(&phba->hbalock);
3600
3601 /* If the event is not for currently used fcf do nothing */
70f3c073 3602 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
38b92ef8
JS		 3603 break;
3604
3605 /*
3606 * Otherwise, request the port to rediscover the entire FCF
3607 * table for a fast recovery from case that the current FCF
3608 * is no longer valid as we are not in the middle of FCF
3609 * failover process already.
3610 */
3611 spin_lock_irq(&phba->hbalock);
fc2b989b 3612 /* Mark the fast failover process in progress */
0c9ab6f5 3613 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
fc2b989b 3614 spin_unlock_irq(&phba->hbalock);
38b92ef8 3615
0c9ab6f5
JS		 3616 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3617 "2771 Start FCF fast failover process due to "
3618 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
70f3c073 3619 "\n", acqe_fip->event_tag, acqe_fip->index);
fc2b989b
JS		 3620 rc = lpfc_sli4_redisc_fcf_table(phba);
3621 if (rc) {
0c9ab6f5
JS		 3622 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3623 LOG_DISCOVERY,
3624 "2772 Issue FCF rediscover mabilbox "
3625 "command failed, fail through to FCF "
3626 "dead event\n");
fc2b989b 3627 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3628 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
fc2b989b
JS		 3629 spin_unlock_irq(&phba->hbalock);
3630 /*
3631 * Last resort will fail over by treating this
3632 * as a link down to FCF registration.
3633 */
3634 lpfc_sli4_fcf_dead_failthrough(phba);
38b92ef8
JS		 3635 } else {
3636 /* Reset FCF roundrobin bmask for new discovery */
7d791df7 3637 lpfc_sli4_clear_fcf_rr_bmask(phba);
38b92ef8
JS		 3638 /*
3639 * Handling fast FCF failover to a DEAD FCF event is
3640 * considered equalivant to receiving CVL to all vports.
fc2b989b
JS		 3641 */
3642 lpfc_sli4_perform_all_vport_cvl(phba);
38b92ef8 3643 }
da0436e9 3644 break;
70f3c073 3645 case LPFC_FIP_EVENT_TYPE_CVL:
0c9ab6f5 3646 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
6669f9bb 3647 "2718 Clear Virtual Link Received for VPI 0x%x"
70f3c073 3648 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
6d368e53 3649
6669f9bb 3650 vport = lpfc_find_vport_by_vpid(phba,
5248a749 3651 acqe_fip->index);
fc2b989b 3652 ndlp = lpfc_sli4_perform_vport_cvl(vport);
6669f9bb
JS		 3653 if (!ndlp)
3654 break;
695a814e
JS		 3655 active_vlink_present = 0;
3656
3657 vports = lpfc_create_vport_work_array(phba);
3658 if (vports) {
3659 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3660 i++) {
3661 if ((!(vports[i]->fc_flag &
3662 FC_VPORT_CVL_RCVD)) &&
3663 (vports[i]->port_state > LPFC_FDISC)) {
3664 active_vlink_present = 1;
3665 break;
3666 }
3667 }
3668 lpfc_destroy_vport_work_array(phba, vports);
3669 }
3670
3671 if (active_vlink_present) {
3672 /*
3673 * If there are other active VLinks present,
3674 * re-instantiate the Vlink using FDISC.
3675 */
6669f9bb 3676 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
fc2b989b 3677 shost = lpfc_shost_from_vport(vport);
6669f9bb
JS		 3678 spin_lock_irq(shost->host_lock);
3679 ndlp->nlp_flag |= NLP_DELAY_TMO;
3680 spin_unlock_irq(shost->host_lock);
695a814e
JS		 3681 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3682 vport->port_state = LPFC_FDISC;
3683 } else {
ecfd03c6
JS		 3684 /*
3685 * Otherwise, we request port to rediscover
3686 * the entire FCF table for a fast recovery
3687 * from possible case that the current FCF
0c9ab6f5
JS		 3688 * is no longer valid if we are not already
3689 * in the FCF failover process.
ecfd03c6 3690 */
fc2b989b 3691 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3692 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
fc2b989b
JS		 3693 spin_unlock_irq(&phba->hbalock);
3694 break;
3695 }
3696 /* Mark the fast failover process in progress */
0c9ab6f5 3697 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
fc2b989b 3698 spin_unlock_irq(&phba->hbalock);
0c9ab6f5
JS		 3699 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3700 LOG_DISCOVERY,
a93ff37a 3701 "2773 Start FCF failover per CVL, "
70f3c073 3702 "evt_tag:x%x\n", acqe_fip->event_tag);
ecfd03c6 3703 rc = lpfc_sli4_redisc_fcf_table(phba);
fc2b989b 3704 if (rc) {
0c9ab6f5
JS		 3705 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3706 LOG_DISCOVERY,
3707 "2774 Issue FCF rediscover "
3708 "mabilbox command failed, "
3709 "through to CVL event\n");
fc2b989b 3710 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3711 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
fc2b989b 3712 spin_unlock_irq(&phba->hbalock);
ecfd03c6
JS		 3713 /*
3714 * Last resort will be re-try on the
3715 * the current registered FCF entry.
3716 */
3717 lpfc_retry_pport_discovery(phba);
38b92ef8
JS		 3718 } else
3719 /*
3720 * Reset FCF roundrobin bmask for new
3721 * discovery.
3722 */
7d791df7 3723 lpfc_sli4_clear_fcf_rr_bmask(phba);
6669f9bb
JS		 3724 }
3725 break;
da0436e9
JS		 3726 default:
3727 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3728 "0288 Unknown FCoE event type 0x%x event tag "
70f3c073 3729 "0x%x\n", event_type, acqe_fip->event_tag);
da0436e9
JS		 3730 break;
3731 }
3732}
3733
3734/**
3735 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3736 * @phba: pointer to lpfc hba data structure.
3737 * @acqe_link: pointer to the async dcbx completion queue entry.
3738 *
3739 * This routine is to handle the SLI4 asynchronous dcbx event.
3740 **/
3741static void
3742lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3743 struct lpfc_acqe_dcbx *acqe_dcbx)
3744{
4d9ab994 3745 phba->fc_eventTag = acqe_dcbx->event_tag;
da0436e9
JS		 3746 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3747 "0290 The SLI4 DCBX asynchronous event is not "
3748 "handled yet\n");
3749}
3750
b19a061a
JS		 3751/**
3752 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3753 * @phba: pointer to lpfc hba data structure.
3754 * @acqe_link: pointer to the async grp5 completion queue entry.
3755 *
3756 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3757 * is an asynchronous notified of a logical link speed change. The Port
3758 * reports the logical link speed in units of 10Mbps.
3759 **/
3760static void
3761lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
3762 struct lpfc_acqe_grp5 *acqe_grp5)
3763{
3764 uint16_t prev_ll_spd;
3765
3766 phba->fc_eventTag = acqe_grp5->event_tag;
3767 phba->fcoe_eventtag = acqe_grp5->event_tag;
3768 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
3769 phba->sli4_hba.link_state.logical_speed =
3770 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
3771 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3772 "2789 GRP5 Async Event: Updating logical link speed "
3773 "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
3774 (phba->sli4_hba.link_state.logical_speed*10));
3775}
3776
da0436e9
JS		 3777/**
3778 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3779 * @phba: pointer to lpfc hba data structure.
3780 *
3781 * This routine is invoked by the worker thread to process all the pending
3782 * SLI4 asynchronous events.
3783 **/
3784void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3785{
3786 struct lpfc_cq_event *cq_event;
3787
3788 /* First, declare the async event has been handled */
3789 spin_lock_irq(&phba->hbalock);
3790 phba->hba_flag &= ~ASYNC_EVENT;
3791 spin_unlock_irq(&phba->hbalock);
3792 /* Now, handle all the async events */
3793 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3794 /* Get the first event from the head of the event queue */
3795 spin_lock_irq(&phba->hbalock);
3796 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3797 cq_event, struct lpfc_cq_event, list);
3798 spin_unlock_irq(&phba->hbalock);
3799 /* Process the asynchronous event */
3800 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3801 case LPFC_TRAILER_CODE_LINK:
3802 lpfc_sli4_async_link_evt(phba,
3803 &cq_event->cqe.acqe_link);
3804 break;
3805 case LPFC_TRAILER_CODE_FCOE:
70f3c073 3806 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
da0436e9
JS		 3807 break;
3808 case LPFC_TRAILER_CODE_DCBX:
3809 lpfc_sli4_async_dcbx_evt(phba,
3810 &cq_event->cqe.acqe_dcbx);
3811 break;
b19a061a
JS		 3812 case LPFC_TRAILER_CODE_GRP5:
3813 lpfc_sli4_async_grp5_evt(phba,
3814 &cq_event->cqe.acqe_grp5);
3815 break;
70f3c073
JS		 3816 case LPFC_TRAILER_CODE_FC:
3817 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
3818 break;
3819 case LPFC_TRAILER_CODE_SLI:
3820 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
3821 break;
da0436e9
JS		 3822 default:
3823 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3824 "1804 Invalid asynchrous event code: "
3825 "x%x\n", bf_get(lpfc_trailer_code,
3826 &cq_event->cqe.mcqe_cmpl));
3827 break;
3828 }
3829 /* Free the completion event processed to the free pool */
3830 lpfc_sli4_cq_event_release(phba, cq_event);
3831 }
3832}
3833
ecfd03c6
JS		 3834/**
3835 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3836 * @phba: pointer to lpfc hba data structure.
3837 *
3838 * This routine is invoked by the worker thread to process FCF table
3839 * rediscovery pending completion event.
3840 **/
3841void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3842{
3843 int rc;
3844
3845 spin_lock_irq(&phba->hbalock);
3846 /* Clear FCF rediscovery timeout event */
3847 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3848 /* Clear driver fast failover FCF record flag */
3849 phba->fcf.failover_rec.flag = 0;
3850 /* Set state for FCF fast failover */
3851 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3852 spin_unlock_irq(&phba->hbalock);
3853
3854 /* Scan FCF table from the first entry to re-discover SAN */
0c9ab6f5 3855 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
a93ff37a 3856 "2777 Start post-quiescent FCF table scan\n");
0c9ab6f5 3857 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
ecfd03c6 3858 if (rc)
0c9ab6f5
JS		 3859 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3860 "2747 Issue FCF scan read FCF mailbox "
3861 "command failed 0x%x\n", rc);
ecfd03c6
JS		 3862}
3863
da0436e9
JS		 3864/**
3865 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3866 * @phba: pointer to lpfc hba data structure.
3867 * @dev_grp: The HBA PCI-Device group number.
3868 *
3869 * This routine is invoked to set up the per HBA PCI-Device group function
3870 * API jump table entries.
3871 *
3872 * Return: 0 if success, otherwise -ENODEV
3873 **/
3874int
3875lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3876{
3877 int rc;
3878
3879 /* Set up lpfc PCI-device group */
3880 phba->pci_dev_grp = dev_grp;
3881
3882 /* The LPFC_PCI_DEV_OC uses SLI4 */
3883 if (dev_grp == LPFC_PCI_DEV_OC)
3884 phba->sli_rev = LPFC_SLI_REV4;
3885
3886 /* Set up device INIT API function jump table */
3887 rc = lpfc_init_api_table_setup(phba, dev_grp);
3888 if (rc)
3889 return -ENODEV;
3890 /* Set up SCSI API function jump table */
3891 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3892 if (rc)
3893 return -ENODEV;
3894 /* Set up SLI API function jump table */
3895 rc = lpfc_sli_api_table_setup(phba, dev_grp);
3896 if (rc)
3897 return -ENODEV;
3898 /* Set up MBOX API function jump table */
3899 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3900 if (rc)
3901 return -ENODEV;
3902
3903 return 0;
5b75da2f
JS		 3904}
3905
3906/**
3621a710 3907 * lpfc_log_intr_mode - Log the active interrupt mode
5b75da2f
JS		 3908 * @phba: pointer to lpfc hba data structure.
3909 * @intr_mode: active interrupt mode adopted.
3910 *
3911 * This routine it invoked to log the currently used active interrupt mode
3912 * to the device.
3772a991
JS		 3913 **/
3914static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5b75da2f
JS		 3915{
3916 switch (intr_mode) {
3917 case 0:
3918 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3919 "0470 Enable INTx interrupt mode.\n");
3920 break;
3921 case 1:
3922 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3923 "0481 Enabled MSI interrupt mode.\n");
3924 break;
3925 case 2:
3926 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3927 "0480 Enabled MSI-X interrupt mode.\n");
3928 break;
3929 default:
3930 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3931 "0482 Illegal interrupt mode.\n");
3932 break;
3933 }
3934 return;
3935}
3936
5b75da2f 3937/**
3772a991 3938 * lpfc_enable_pci_dev - Enable a generic PCI device.
5b75da2f
JS		 3939 * @phba: pointer to lpfc hba data structure.
3940 *
3772a991
JS		 3941 * This routine is invoked to enable the PCI device that is common to all
3942 * PCI devices.
5b75da2f
JS		 3943 *
3944 * Return codes
af901ca1 3945 * 0 - successful
3772a991 3946 * other values - error
5b75da2f 3947 **/
3772a991
JS		 3948static int
3949lpfc_enable_pci_dev(struct lpfc_hba *phba)
5b75da2f 3950{
3772a991
JS		 3951 struct pci_dev *pdev;
3952 int bars;
5b75da2f 3953
3772a991
JS		 3954 /* Obtain PCI device reference */
3955 if (!phba->pcidev)
3956 goto out_error;
3957 else
3958 pdev = phba->pcidev;
3959 /* Select PCI BARs */
3960 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3961 /* Enable PCI device */
3962 if (pci_enable_device_mem(pdev))
3963 goto out_error;
3964 /* Request PCI resource for the device */
3965 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3966 goto out_disable_device;
3967 /* Set up device as PCI master and save state for EEH */
3968 pci_set_master(pdev);
3969 pci_try_set_mwi(pdev);
3970 pci_save_state(pdev);
5b75da2f 3971
0558056c
JS		 3972 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
3973 if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
3974 pdev->needs_freset = 1;
3975
3772a991 3976 return 0;
5b75da2f 3977
3772a991
JS		 3978out_disable_device:
3979 pci_disable_device(pdev);
3980out_error:
3981 return -ENODEV;
5b75da2f
JS		 3982}
3983
3984/**
3772a991 3985 * lpfc_disable_pci_dev - Disable a generic PCI device.
5b75da2f
JS		 3986 * @phba: pointer to lpfc hba data structure.
3987 *
3772a991
JS		 3988 * This routine is invoked to disable the PCI device that is common to all
3989 * PCI devices.
5b75da2f
JS		 3990 **/
3991static void
3772a991 3992lpfc_disable_pci_dev(struct lpfc_hba *phba)
5b75da2f 3993{
3772a991
JS		 3994 struct pci_dev *pdev;
3995 int bars;
5b75da2f 3996
3772a991
JS		 3997 /* Obtain PCI device reference */
3998 if (!phba->pcidev)
3999 return;
4000 else
4001 pdev = phba->pcidev;
4002 /* Select PCI BARs */
4003 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4004 /* Release PCI resource and disable PCI device */
4005 pci_release_selected_regions(pdev, bars);
4006 pci_disable_device(pdev);
4007 /* Null out PCI private reference to driver */
4008 pci_set_drvdata(pdev, NULL);
5b75da2f
JS		 4009
4010 return;
4011}
4012
e59058c4 4013/**
3772a991
JS		 4014 * lpfc_reset_hba - Reset a hba
4015 * @phba: pointer to lpfc hba data structure.
e59058c4 4016 *
3772a991
JS		 4017 * This routine is invoked to reset a hba device. It brings the HBA
4018 * offline, performs a board restart, and then brings the board back
4019 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4020 * on outstanding mailbox commands.
e59058c4 4021 **/
3772a991
JS		 4022void
4023lpfc_reset_hba(struct lpfc_hba *phba)
dea3101e 4024{
3772a991
JS		 4025 /* If resets are disabled then set error state and return. */
4026 if (!phba->cfg_enable_hba_reset) {
4027 phba->link_state = LPFC_HBA_ERROR;
4028 return;
4029 }
4030 lpfc_offline_prep(phba);
4031 lpfc_offline(phba);
4032 lpfc_sli_brdrestart(phba);
4033 lpfc_online(phba);
4034 lpfc_unblock_mgmt_io(phba);
4035}
dea3101e 4036
0a96e975
JS		 4037/**
4038 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4039 * @phba: pointer to lpfc hba data structure.
4040 *
4041 * This function enables the PCI SR-IOV virtual functions to a physical
4042 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4043 * enable the number of virtual functions to the physical function. As
4044 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4045 * API call does not considered as an error condition for most of the device.
4046 **/
4047uint16_t
4048lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4049{
4050 struct pci_dev *pdev = phba->pcidev;
4051 uint16_t nr_virtfn;
4052 int pos;
4053
4054 if (!pdev->is_physfn)
4055 return 0;
4056
4057 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4058 if (pos == 0)
4059 return 0;
4060
4061 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4062 return nr_virtfn;
4063}
4064
912e3acd
JS		 4065/**
4066 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4067 * @phba: pointer to lpfc hba data structure.
4068 * @nr_vfn: number of virtual functions to be enabled.
4069 *
4070 * This function enables the PCI SR-IOV virtual functions to a physical
4071 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4072 * enable the number of virtual functions to the physical function. As
4073 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4074 * API call does not considered as an error condition for most of the device.
4075 **/
4076int
4077lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4078{
4079 struct pci_dev *pdev = phba->pcidev;
0a96e975 4080 uint16_t max_nr_vfn;
912e3acd
JS		 4081 int rc;
4082
0a96e975
JS		 4083 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4084 if (nr_vfn > max_nr_vfn) {
4085 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4086 "3057 Requested vfs (%d) greater than "
4087 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4088 return -EINVAL;
4089 }
4090
912e3acd
JS		 4091 rc = pci_enable_sriov(pdev, nr_vfn);
4092 if (rc) {
4093 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4094 "2806 Failed to enable sriov on this device "
4095 "with vfn number nr_vf:%d, rc:%d\n",
4096 nr_vfn, rc);
4097 } else
4098 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4099 "2807 Successful enable sriov on this device "
4100 "with vfn number nr_vf:%d\n", nr_vfn);
4101 return rc;
4102}
4103
3772a991
JS		 4104/**
4105 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4106 * @phba: pointer to lpfc hba data structure.
4107 *
4108 * This routine is invoked to set up the driver internal resources specific to
4109 * support the SLI-3 HBA device it attached to.
4110 *
4111 * Return codes
af901ca1 4112 * 0 - successful
3772a991
JS		 4113 * other values - error
4114 **/
4115static int
4116lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4117{
4118 struct lpfc_sli *psli;
912e3acd 4119 int rc;
dea3101e 4120
2e0fef85 4121 /*
3772a991 4122 * Initialize timers used by driver
2e0fef85 4123 */
dea3101e 4124
3772a991 4125 /* Heartbeat timer */
858c9f6c
JS		 4126 init_timer(&phba->hb_tmofunc);
4127 phba->hb_tmofunc.function = lpfc_hb_timeout;
4128 phba->hb_tmofunc.data = (unsigned long)phba;
4129
dea3101e 4130 psli = &phba->sli;
3772a991 4131 /* MBOX heartbeat timer */
dea3101e 4132 init_timer(&psli->mbox_tmo);
4133 psli->mbox_tmo.function = lpfc_mbox_timeout;
2e0fef85 4134 psli->mbox_tmo.data = (unsigned long) phba;
3772a991 4135 /* FCP polling mode timer */
875fbdfe
JSEC		 4136 init_timer(&phba->fcp_poll_timer);
4137 phba->fcp_poll_timer.function = lpfc_poll_timeout;
2e0fef85 4138 phba->fcp_poll_timer.data = (unsigned long) phba;
3772a991 4139 /* Fabric block timer */
92d7f7b0
JS		 4140 init_timer(&phba->fabric_block_timer);
4141 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4142 phba->fabric_block_timer.data = (unsigned long) phba;
3772a991 4143 /* EA polling mode timer */
9399627f
JS		 4144 init_timer(&phba->eratt_poll);
4145 phba->eratt_poll.function = lpfc_poll_eratt;
4146 phba->eratt_poll.data = (unsigned long) phba;
dea3101e 4147
3772a991
JS		 4148 /* Host attention work mask setup */
4149 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4150 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
dea3101e 4151
3772a991
JS		 4152 /* Get all the module params for configuring this host */
4153 lpfc_get_cfgparam(phba);
49198b37
JS		 4154 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4155 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4156 /* check for menlo minimum sg count */
4157 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4158 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4159 }
4160
dea3101e 4161 /*
3772a991
JS		 4162 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4163 * used to create the sg_dma_buf_pool must be dynamically calculated.
4164 * 2 segments are added since the IOCB needs a command and response bde.
dea3101e 4165 */
3772a991
JS		 4166 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4167 sizeof(struct fcp_rsp) +
4168 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4169
4170 if (phba->cfg_enable_bg) {
4171 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4172 phba->cfg_sg_dma_buf_size +=
4173 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
901a920f 4174 }
dea3101e 4175
3772a991
JS		 4176 /* Also reinitialize the host templates with new values. */
4177 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4178 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
dea3101e 4179
3772a991
JS		 4180 phba->max_vpi = LPFC_MAX_VPI;
4181 /* This will be set to correct value after config_port mbox */
4182 phba->max_vports = 0;
dea3101e 4183
3772a991
JS		 4184 /*
4185 * Initialize the SLI Layer to run with lpfc HBAs.
4186 */
4187 lpfc_sli_setup(phba);
4188 lpfc_sli_queue_setup(phba);
ed957684 4189
3772a991
JS		 4190 /* Allocate device driver memory */
4191 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4192 return -ENOMEM;
51ef4c26 4193
912e3acd
JS		 4194 /*
4195 * Enable sr-iov virtual functions if supported and configured
4196 * through the module parameter.
4197 */
4198 if (phba->cfg_sriov_nr_virtfn > 0) {
4199 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4200 phba->cfg_sriov_nr_virtfn);
4201 if (rc) {
4202 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4203 "2808 Requested number of SR-IOV "
4204 "virtual functions (%d) is not "
4205 "supported\n",
4206 phba->cfg_sriov_nr_virtfn);
4207 phba->cfg_sriov_nr_virtfn = 0;
4208 }
4209 }
4210
3772a991
JS		 4211 return 0;
4212}
ed957684 4213
3772a991
JS		 4214/**
4215 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4216 * @phba: pointer to lpfc hba data structure.
4217 *
4218 * This routine is invoked to unset the driver internal resources set up
4219 * specific for supporting the SLI-3 HBA device it attached to.
4220 **/
4221static void
4222lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4223{
4224 /* Free device driver memory allocated */
4225 lpfc_mem_free_all(phba);
3163f725 4226
3772a991
JS		 4227 return;
4228}
dea3101e 4229
3772a991 4230/**
da0436e9 4231 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3772a991
JS		 4232 * @phba: pointer to lpfc hba data structure.
4233 *
da0436e9
JS		 4234 * This routine is invoked to set up the driver internal resources specific to
4235 * support the SLI-4 HBA device it attached to.
3772a991
JS		 4236 *
4237 * Return codes
af901ca1 4238 * 0 - successful
da0436e9 4239 * other values - error
3772a991
JS		 4240 **/
4241static int
da0436e9 4242lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3772a991 4243{
da0436e9 4244 struct lpfc_sli *psli;
28baac74
JS		 4245 LPFC_MBOXQ_t *mboxq;
4246 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
4247 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4248 struct lpfc_mqe *mqe;
085c647c 4249 int longs, sli_family;
da0436e9
JS		 4250
4251 /* Before proceed, wait for POST done and device ready */
4252 rc = lpfc_sli4_post_status_check(phba);
4253 if (rc)
4254 return -ENODEV;
4255
3772a991 4256 /*
da0436e9 4257 * Initialize timers used by driver
3772a991 4258 */
3772a991 4259
da0436e9
JS		 4260 /* Heartbeat timer */
4261 init_timer(&phba->hb_tmofunc);
4262 phba->hb_tmofunc.function = lpfc_hb_timeout;
4263 phba->hb_tmofunc.data = (unsigned long)phba;
19ca7609
JS		 4264 init_timer(&phba->rrq_tmr);
4265 phba->rrq_tmr.function = lpfc_rrq_timeout;
4266 phba->rrq_tmr.data = (unsigned long)phba;
3772a991 4267
da0436e9
JS		 4268 psli = &phba->sli;
4269 /* MBOX heartbeat timer */
4270 init_timer(&psli->mbox_tmo);
4271 psli->mbox_tmo.function = lpfc_mbox_timeout;
4272 psli->mbox_tmo.data = (unsigned long) phba;
4273 /* Fabric block timer */
4274 init_timer(&phba->fabric_block_timer);
4275 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4276 phba->fabric_block_timer.data = (unsigned long) phba;
4277 /* EA polling mode timer */
4278 init_timer(&phba->eratt_poll);
4279 phba->eratt_poll.function = lpfc_poll_eratt;
4280 phba->eratt_poll.data = (unsigned long) phba;
ecfd03c6
JS		 4281 /* FCF rediscover timer */
4282 init_timer(&phba->fcf.redisc_wait);
4283 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4284 phba->fcf.redisc_wait.data = (unsigned long)phba;
4285
7ad20aa9
JS		 4286 /*
4287 * Control structure for handling external multi-buffer mailbox
4288 * command pass-through.
4289 */
4290 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
4291 sizeof(struct lpfc_mbox_ext_buf_ctx));
4292 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4293
da0436e9
JS		 4294 /*
4295 * We need to do a READ_CONFIG mailbox command here before
4296 * calling lpfc_get_cfgparam. For VFs this will report the
4297 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4298 * All of the resources allocated
4299 * for this Port are tied to these values.
4300 */
4301 /* Get all the module params for configuring this host */
4302 lpfc_get_cfgparam(phba);
4303 phba->max_vpi = LPFC_MAX_VPI;
4304 /* This will be set to correct value after the read_config mbox */
4305 phba->max_vports = 0;
3772a991 4306
da0436e9
JS		 4307 /* Program the default value of vlan_id and fc_map */
4308 phba->valid_vlan = 0;
4309 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4310 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4311 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
3772a991 4312
da0436e9
JS		 4313 /*
4314 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4315 * used to create the sg_dma_buf_pool must be dynamically calculated.
4316 * 2 segments are added since the IOCB needs a command and response bde.
4317 * To insure that the scsi sgl does not cross a 4k page boundary only
28baac74 4318 * sgl sizes of must be a power of 2.
da0436e9 4319 */
28baac74
JS		 4320 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4321 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
085c647c
JS		 4322
4323 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
4324 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4325 switch (sli_family) {
4326 case LPFC_SLI_INTF_FAMILY_BE2:
4327 case LPFC_SLI_INTF_FAMILY_BE3:
4328 /* There is a single hint for BE - 2 pages per BPL. */
4329 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
4330 LPFC_SLI_INTF_SLI_HINT1_1)
4331 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4332 break;
4333 case LPFC_SLI_INTF_FAMILY_LNCR_A0:
4334 case LPFC_SLI_INTF_FAMILY_LNCR_B0:
4335 default:
4336 break;
4337 }
28baac74
JS		 4338 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4339 dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4340 dma_buf_size = dma_buf_size << 1)
4341 ;
4342 if (dma_buf_size == max_buf_size)
4343 phba->cfg_sg_seg_cnt = (dma_buf_size -
4344 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4345 (2 * sizeof(struct sli4_sge))) /
4346 sizeof(struct sli4_sge);
4347 phba->cfg_sg_dma_buf_size = dma_buf_size;
3772a991 4348
da0436e9
JS		 4349 /* Initialize buffer queue management fields */
4350 hbq_count = lpfc_sli_hbq_count();
4351 for (i = 0; i < hbq_count; ++i)
4352 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4353 INIT_LIST_HEAD(&phba->rb_pend_list);
4354 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4355 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
3772a991 4356
da0436e9
JS		 4357 /*
4358 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4359 */
4360 /* Initialize the Abort scsi buffer list used by driver */
4361 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4362 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4363 /* This abort list used by worker thread */
4364 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
3772a991 4365
da0436e9 4366 /*
6d368e53 4367 * Initialize driver internal slow-path work queues
da0436e9 4368 */
3772a991 4369
da0436e9
JS		 4370 /* Driver internel slow-path CQ Event pool */
4371 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4372 /* Response IOCB work queue list */
45ed1190 4373 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
da0436e9
JS		 4374 /* Asynchronous event CQ Event work queue list */
4375 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4376 /* Fast-path XRI aborted CQ Event work queue list */
4377 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4378 /* Slow-path XRI aborted CQ Event work queue list */
4379 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4380 /* Receive queue CQ Event work queue list */
4381 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4382
6d368e53
JS		 4383 /* Initialize extent block lists. */
4384 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
4385 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
4386 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
4387 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
4388
da0436e9
JS		 4389 /* Initialize the driver internal SLI layer lists. */
4390 lpfc_sli_setup(phba);
4391 lpfc_sli_queue_setup(phba);
3772a991 4392
da0436e9
JS		 4393 /* Allocate device driver memory */
4394 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4395 if (rc)
4396 return -ENOMEM;
4397
2fcee4bf
JS		 4398 /* IF Type 2 ports get initialized now. */
4399 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4400 LPFC_SLI_INTF_IF_TYPE_2) {
4401 rc = lpfc_pci_function_reset(phba);
4402 if (unlikely(rc))
4403 return -ENODEV;
4404 }
4405
da0436e9
JS		 4406 /* Create the bootstrap mailbox command */
4407 rc = lpfc_create_bootstrap_mbox(phba);
4408 if (unlikely(rc))
4409 goto out_free_mem;
4410
4411 /* Set up the host's endian order with the device. */
4412 rc = lpfc_setup_endian_order(phba);
4413 if (unlikely(rc))
4414 goto out_free_bsmbx;
4415
4416 /* Set up the hba's configuration parameters. */
4417 rc = lpfc_sli4_read_config(phba);
4418 if (unlikely(rc))
4419 goto out_free_bsmbx;
4420
2fcee4bf
JS		 4421 /* IF Type 0 ports get initialized now. */
4422 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4423 LPFC_SLI_INTF_IF_TYPE_0) {
4424 rc = lpfc_pci_function_reset(phba);
4425 if (unlikely(rc))
4426 goto out_free_bsmbx;
4427 }
da0436e9 4428
cb5172ea
JS		 4429 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4430 GFP_KERNEL);
4431 if (!mboxq) {
4432 rc = -ENOMEM;
4433 goto out_free_bsmbx;
4434 }
4435
fedd3b7b 4436 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
cb5172ea
JS		 4437 lpfc_supported_pages(mboxq);
4438 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
fedd3b7b
JS		 4439 if (!rc) {
4440 mqe = &mboxq->u.mqe;
4441 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4442 LPFC_MAX_SUPPORTED_PAGES);
4443 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4444 switch (pn_page[i]) {
4445 case LPFC_SLI4_PARAMETERS:
4446 phba->sli4_hba.pc_sli4_params.supported = 1;
4447 break;
4448 default:
4449 break;
4450 }
4451 }
4452 /* Read the port's SLI4 Parameters capabilities if supported. */
4453 if (phba->sli4_hba.pc_sli4_params.supported)
4454 rc = lpfc_pc_sli4_params_get(phba, mboxq);
4455 if (rc) {
4456 mempool_free(mboxq, phba->mbox_mem_pool);
4457 rc = -EIO;
4458 goto out_free_bsmbx;
cb5172ea
JS		 4459 }
4460 }
fedd3b7b
JS		 4461 /*
4462 * Get sli4 parameters that override parameters from Port capabilities.
6d368e53
JS		 4463 * If this call fails, it isn't critical unless the SLI4 parameters come
4464 * back in conflict.
fedd3b7b 4465 */
6d368e53
JS		 4466 rc = lpfc_get_sli4_parameters(phba, mboxq);
4467 if (rc) {
4468 if (phba->sli4_hba.extents_in_use &&
4469 phba->sli4_hba.rpi_hdrs_in_use) {
4470 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4471 "2999 Unsupported SLI4 Parameters "
4472 "Extents and RPI headers enabled.\n");
4473 goto out_free_bsmbx;
4474 }
4475 }
cb5172ea 4476 mempool_free(mboxq, phba->mbox_mem_pool);
da0436e9
JS		 4477 /* Create all the SLI4 queues */
4478 rc = lpfc_sli4_queue_create(phba);
4479 if (rc)
4480 goto out_free_bsmbx;
4481
4482 /* Create driver internal CQE event pool */
4483 rc = lpfc_sli4_cq_event_pool_create(phba);
4484 if (rc)
4485 goto out_destroy_queue;
4486
4487 /* Initialize and populate the iocb list per host */
4488 rc = lpfc_init_sgl_list(phba);
4489 if (rc) {
4490 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4491 "1400 Failed to initialize sgl list.\n");
4492 goto out_destroy_cq_event_pool;
4493 }
4494 rc = lpfc_init_active_sgl_array(phba);
4495 if (rc) {
4496 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4497 "1430 Failed to initialize sgl list.\n");
4498 goto out_free_sgl_list;
4499 }
da0436e9
JS		 4500 rc = lpfc_sli4_init_rpi_hdrs(phba);
4501 if (rc) {
4502 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4503 "1432 Failed to initialize rpi headers.\n");
4504 goto out_free_active_sgl;
4505 }
4506
a93ff37a 4507 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
0c9ab6f5
JS		 4508 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4509 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4510 GFP_KERNEL);
4511 if (!phba->fcf.fcf_rr_bmask) {
4512 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4513 "2759 Failed allocate memory for FCF round "
4514 "robin failover bmask\n");
0558056c 4515 rc = -ENOMEM;
0c9ab6f5
JS		 4516 goto out_remove_rpi_hdrs;
4517 }
4518
da0436e9
JS		 4519 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4520 phba->cfg_fcp_eq_count), GFP_KERNEL);
4521 if (!phba->sli4_hba.fcp_eq_hdl) {
4522 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4523 "2572 Failed allocate memory for fast-path "
4524 "per-EQ handle array\n");
0558056c 4525 rc = -ENOMEM;
0c9ab6f5 4526 goto out_free_fcf_rr_bmask;
da0436e9
JS		 4527 }
4528
4529 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4530 phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4531 if (!phba->sli4_hba.msix_entries) {
4532 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4533 "2573 Failed allocate memory for msi-x "
4534 "interrupt vector entries\n");
0558056c 4535 rc = -ENOMEM;
da0436e9
JS		 4536 goto out_free_fcp_eq_hdl;
4537 }
4538
912e3acd
JS		 4539 /*
4540 * Enable sr-iov virtual functions if supported and configured
4541 * through the module parameter.
4542 */
4543 if (phba->cfg_sriov_nr_virtfn > 0) {
4544 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4545 phba->cfg_sriov_nr_virtfn);
4546 if (rc) {
4547 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4548 "3020 Requested number of SR-IOV "
4549 "virtual functions (%d) is not "
4550 "supported\n",
4551 phba->cfg_sriov_nr_virtfn);
4552 phba->cfg_sriov_nr_virtfn = 0;
4553 }
4554 }
4555
5248a749 4556 return 0;
da0436e9
JS		 4557
4558out_free_fcp_eq_hdl:
4559 kfree(phba->sli4_hba.fcp_eq_hdl);
0c9ab6f5
JS		 4560out_free_fcf_rr_bmask:
4561 kfree(phba->fcf.fcf_rr_bmask);
da0436e9
JS		 4562out_remove_rpi_hdrs:
4563 lpfc_sli4_remove_rpi_hdrs(phba);
4564out_free_active_sgl:
4565 lpfc_free_active_sgl(phba);
4566out_free_sgl_list:
4567 lpfc_free_sgl_list(phba);
4568out_destroy_cq_event_pool:
4569 lpfc_sli4_cq_event_pool_destroy(phba);
4570out_destroy_queue:
4571 lpfc_sli4_queue_destroy(phba);
4572out_free_bsmbx:
4573 lpfc_destroy_bootstrap_mbox(phba);
4574out_free_mem:
4575 lpfc_mem_free(phba);
4576 return rc;
4577}
4578
4579/**
4580 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4581 * @phba: pointer to lpfc hba data structure.
4582 *
4583 * This routine is invoked to unset the driver internal resources set up
4584 * specific for supporting the SLI-4 HBA device it attached to.
4585 **/
4586static void
4587lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4588{
4589 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4590
da0436e9
JS		 4591 /* Free memory allocated for msi-x interrupt vector entries */
4592 kfree(phba->sli4_hba.msix_entries);
4593
4594 /* Free memory allocated for fast-path work queue handles */
4595 kfree(phba->sli4_hba.fcp_eq_hdl);
4596
4597 /* Free the allocated rpi headers. */
4598 lpfc_sli4_remove_rpi_hdrs(phba);
d11e31dd 4599 lpfc_sli4_remove_rpis(phba);
da0436e9 4600
0c9ab6f5
JS		 4601 /* Free eligible FCF index bmask */
4602 kfree(phba->fcf.fcf_rr_bmask);
4603
da0436e9
JS		 4604 /* Free the ELS sgl list */
4605 lpfc_free_active_sgl(phba);
4606 lpfc_free_sgl_list(phba);
4607
4608 /* Free the SCSI sgl management array */
4609 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4610
4611 /* Free the SLI4 queues */
4612 lpfc_sli4_queue_destroy(phba);
4613
4614 /* Free the completion queue EQ event pool */
4615 lpfc_sli4_cq_event_release_all(phba);
4616 lpfc_sli4_cq_event_pool_destroy(phba);
4617
6d368e53
JS		 4618 /* Release resource identifiers. */
4619 lpfc_sli4_dealloc_resource_identifiers(phba);
4620
da0436e9
JS		 4621 /* Free the bsmbx region. */
4622 lpfc_destroy_bootstrap_mbox(phba);
4623
4624 /* Free the SLI Layer memory with SLI4 HBAs */
4625 lpfc_mem_free_all(phba);
4626
4627 /* Free the current connect table */
4628 list_for_each_entry_safe(conn_entry, next_conn_entry,
4d9ab994
JS		 4629 &phba->fcf_conn_rec_list, list) {
4630 list_del_init(&conn_entry->list);
da0436e9 4631 kfree(conn_entry);
4d9ab994 4632 }
da0436e9
JS		 4633
4634 return;
4635}
4636
4637/**
25985edc 4638 * lpfc_init_api_table_setup - Set up init api function jump table
da0436e9
JS		 4639 * @phba: The hba struct for which this call is being executed.
4640 * @dev_grp: The HBA PCI-Device group number.
4641 *
4642 * This routine sets up the device INIT interface API function jump table
4643 * in @phba struct.
4644 *
4645 * Returns: 0 - success, -ENODEV - failure.
4646 **/
4647int
4648lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4649{
84d1b006
JS		 4650 phba->lpfc_hba_init_link = lpfc_hba_init_link;
4651 phba->lpfc_hba_down_link = lpfc_hba_down_link;
7f86059a 4652 phba->lpfc_selective_reset = lpfc_selective_reset;
da0436e9
JS		 4653 switch (dev_grp) {
4654 case LPFC_PCI_DEV_LP:
4655 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4656 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4657 phba->lpfc_stop_port = lpfc_stop_port_s3;
4658 break;
4659 case LPFC_PCI_DEV_OC:
4660 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4661 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4662 phba->lpfc_stop_port = lpfc_stop_port_s4;
4663 break;
4664 default:
4665 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4666 "1431 Invalid HBA PCI-device group: 0x%x\n",
4667 dev_grp);
4668 return -ENODEV;
4669 break;
4670 }
4671 return 0;
4672}
4673
4674/**
4675 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4676 * @phba: pointer to lpfc hba data structure.
4677 *
4678 * This routine is invoked to set up the driver internal resources before the
4679 * device specific resource setup to support the HBA device it attached to.
4680 *
4681 * Return codes
af901ca1 4682 * 0 - successful
da0436e9
JS		 4683 * other values - error
4684 **/
4685static int
4686lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4687{
4688 /*
4689 * Driver resources common to all SLI revisions
4690 */
4691 atomic_set(&phba->fast_event_count, 0);
4692 spin_lock_init(&phba->hbalock);
4693
4694 /* Initialize ndlp management spinlock */
4695 spin_lock_init(&phba->ndlp_lock);
4696
4697 INIT_LIST_HEAD(&phba->port_list);
4698 INIT_LIST_HEAD(&phba->work_list);
4699 init_waitqueue_head(&phba->wait_4_mlo_m_q);
4700
4701 /* Initialize the wait queue head for the kernel thread */
4702 init_waitqueue_head(&phba->work_waitq);
4703
4704 /* Initialize the scsi buffer list used by driver for scsi IO */
4705 spin_lock_init(&phba->scsi_buf_list_lock);
4706 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4707
4708 /* Initialize the fabric iocb list */
4709 INIT_LIST_HEAD(&phba->fabric_iocb_list);
4710
4711 /* Initialize list to save ELS buffers */
4712 INIT_LIST_HEAD(&phba->elsbuf);
4713
4714 /* Initialize FCF connection rec list */
4715 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4716
4717 return 0;
4718}
4719
4720/**
4721 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4722 * @phba: pointer to lpfc hba data structure.
4723 *
4724 * This routine is invoked to set up the driver internal resources after the
4725 * device specific resource setup to support the HBA device it attached to.
4726 *
4727 * Return codes
af901ca1 4728 * 0 - successful
da0436e9
JS		 4729 * other values - error
4730 **/
4731static int
4732lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4733{
4734 int error;
4735
4736 /* Startup the kernel thread for this host adapter. */
4737 phba->worker_thread = kthread_run(lpfc_do_work, phba,
4738 "lpfc_worker_%d", phba->brd_no);
4739 if (IS_ERR(phba->worker_thread)) {
4740 error = PTR_ERR(phba->worker_thread);
4741 return error;
3772a991
JS		 4742 }
4743
4744 return 0;
4745}
4746
4747/**
4748 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4749 * @phba: pointer to lpfc hba data structure.
4750 *
4751 * This routine is invoked to unset the driver internal resources set up after
4752 * the device specific resource setup for supporting the HBA device it
4753 * attached to.
4754 **/
4755static void
4756lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4757{
4758 /* Stop kernel worker thread */
4759 kthread_stop(phba->worker_thread);
4760}
4761
4762/**
4763 * lpfc_free_iocb_list - Free iocb list.
4764 * @phba: pointer to lpfc hba data structure.
4765 *
4766 * This routine is invoked to free the driver's IOCB list and memory.
4767 **/
4768static void
4769lpfc_free_iocb_list(struct lpfc_hba *phba)
4770{
4771 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4772
4773 spin_lock_irq(&phba->hbalock);
4774 list_for_each_entry_safe(iocbq_entry, iocbq_next,
4775 &phba->lpfc_iocb_list, list) {
4776 list_del(&iocbq_entry->list);
4777 kfree(iocbq_entry);
4778 phba->total_iocbq_bufs--;
98c9ea5c 4779 }
3772a991
JS		 4780 spin_unlock_irq(&phba->hbalock);
4781
4782 return;
4783}
4784
4785/**
4786 * lpfc_init_iocb_list - Allocate and initialize iocb list.
4787 * @phba: pointer to lpfc hba data structure.
4788 *
4789 * This routine is invoked to allocate and initizlize the driver's IOCB
4790 * list and set up the IOCB tag array accordingly.
4791 *
4792 * Return codes
af901ca1 4793 * 0 - successful
3772a991
JS		 4794 * other values - error
4795 **/
4796static int
4797lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4798{
4799 struct lpfc_iocbq *iocbq_entry = NULL;
4800 uint16_t iotag;
4801 int i;
dea3101e 4802
4803 /* Initialize and populate the iocb list per host. */
4804 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
3772a991 4805 for (i = 0; i < iocb_count; i++) {
dd00cc48 4806 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
dea3101e 4807 if (iocbq_entry == NULL) {
4808 printk(KERN_ERR "%s: only allocated %d iocbs of "
4809 "expected %d count. Unloading driver.\n",
cadbd4a5 4810 __func__, i, LPFC_IOCB_LIST_CNT);
dea3101e 4811 goto out_free_iocbq;
4812 }
4813
604a3e30
JB		 4814 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4815 if (iotag == 0) {
3772a991 4816 kfree(iocbq_entry);
604a3e30 4817 printk(KERN_ERR "%s: failed to allocate IOTAG. "
3772a991 4818 "Unloading driver.\n", __func__);
604a3e30
JB		 4819 goto out_free_iocbq;
4820 }
6d368e53 4821 iocbq_entry->sli4_lxritag = NO_XRI;
3772a991 4822 iocbq_entry->sli4_xritag = NO_XRI;
2e0fef85
JS		 4823
4824 spin_lock_irq(&phba->hbalock);
dea3101e 4825 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4826 phba->total_iocbq_bufs++;
2e0fef85 4827 spin_unlock_irq(&phba->hbalock);
dea3101e 4828 }
4829
3772a991 4830 return 0;
dea3101e 4831
3772a991
JS		 4832out_free_iocbq:
4833 lpfc_free_iocb_list(phba);
dea3101e 4834
3772a991
JS		 4835 return -ENOMEM;
4836}
5e9d9b82 4837
3772a991 4838/**
da0436e9
JS		 4839 * lpfc_free_sgl_list - Free sgl list.
4840 * @phba: pointer to lpfc hba data structure.
3772a991 4841 *
da0436e9 4842 * This routine is invoked to free the driver's sgl list and memory.
3772a991 4843 **/
da0436e9
JS		 4844static void
4845lpfc_free_sgl_list(struct lpfc_hba *phba)
3772a991 4846{
da0436e9
JS		 4847 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
4848 LIST_HEAD(sglq_list);
dea3101e 4849
da0436e9
JS		 4850 spin_lock_irq(&phba->hbalock);
4851 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
4852 spin_unlock_irq(&phba->hbalock);
dea3101e 4853
da0436e9
JS		 4854 list_for_each_entry_safe(sglq_entry, sglq_next,
4855 &sglq_list, list) {
4856 list_del(&sglq_entry->list);
4857 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
4858 kfree(sglq_entry);
4859 phba->sli4_hba.total_sglq_bufs--;
4860 }
da0436e9
JS		 4861 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4862}
92d7f7b0 4863
da0436e9
JS		 4864/**
4865 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4866 * @phba: pointer to lpfc hba data structure.
4867 *
4868 * This routine is invoked to allocate the driver's active sgl memory.
4869 * This array will hold the sglq_entry's for active IOs.
4870 **/
4871static int
4872lpfc_init_active_sgl_array(struct lpfc_hba *phba)
4873{
4874 int size;
4875 size = sizeof(struct lpfc_sglq *);
4876 size *= phba->sli4_hba.max_cfg_param.max_xri;
4877
4878 phba->sli4_hba.lpfc_sglq_active_list =
4879 kzalloc(size, GFP_KERNEL);
4880 if (!phba->sli4_hba.lpfc_sglq_active_list)
4881 return -ENOMEM;
4882 return 0;
3772a991
JS		 4883}
4884
4885/**
da0436e9 4886 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
3772a991
JS		 4887 * @phba: pointer to lpfc hba data structure.
4888 *
da0436e9
JS		 4889 * This routine is invoked to walk through the array of active sglq entries
4890 * and free all of the resources.
4891 * This is just a place holder for now.
3772a991
JS		 4892 **/
4893static void
da0436e9 4894lpfc_free_active_sgl(struct lpfc_hba *phba)
3772a991 4895{
da0436e9 4896 kfree(phba->sli4_hba.lpfc_sglq_active_list);
3772a991
JS		 4897}
4898
4899/**
da0436e9 4900 * lpfc_init_sgl_list - Allocate and initialize sgl list.
3772a991
JS		 4901 * @phba: pointer to lpfc hba data structure.
4902 *
da0436e9
JS		 4903 * This routine is invoked to allocate and initizlize the driver's sgl
4904 * list and set up the sgl xritag tag array accordingly.
3772a991
JS		 4905 *
4906 * Return codes
af901ca1 4907 * 0 - successful
da0436e9 4908 * other values - error
3772a991
JS		 4909 **/
4910static int
da0436e9 4911lpfc_init_sgl_list(struct lpfc_hba *phba)
3772a991 4912{
da0436e9
JS		 4913 struct lpfc_sglq *sglq_entry = NULL;
4914 int i;
4915 int els_xri_cnt;
4916
4917 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4918 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6d368e53 4919 "2400 ELS XRI count %d.\n",
da0436e9
JS		 4920 els_xri_cnt);
4921 /* Initialize and populate the sglq list per host/VF. */
4922 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4923 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4924
4925 /* Sanity check on XRI management */
4926 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4927 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4928 "2562 No room left for SCSI XRI allocation: "
4929 "max_xri=%d, els_xri=%d\n",
4930 phba->sli4_hba.max_cfg_param.max_xri,
4931 els_xri_cnt);
4932 return -ENOMEM;
4933 }
3772a991 4934
da0436e9
JS		 4935 /* Allocate memory for the ELS XRI management array */
4936 phba->sli4_hba.lpfc_els_sgl_array =
4937 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4938 GFP_KERNEL);
0ff10d46 4939
da0436e9
JS		 4940 if (!phba->sli4_hba.lpfc_els_sgl_array) {
4941 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4942 "2401 Failed to allocate memory for ELS "
4943 "XRI management array of size %d.\n",
4944 els_xri_cnt);
4945 return -ENOMEM;
4946 }
2e0fef85 4947
da0436e9
JS		 4948 /* Keep the SCSI XRI into the XRI management array */
4949 phba->sli4_hba.scsi_xri_max =
4950 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4951 phba->sli4_hba.scsi_xri_cnt = 0;
da0436e9
JS		 4952 phba->sli4_hba.lpfc_scsi_psb_array =
4953 kzalloc((sizeof(struct lpfc_scsi_buf *) *
4954 phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4955
4956 if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4957 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4958 "2563 Failed to allocate memory for SCSI "
4959 "XRI management array of size %d.\n",
4960 phba->sli4_hba.scsi_xri_max);
4961 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4962 return -ENOMEM;
4963 }
4964
4965 for (i = 0; i < els_xri_cnt; i++) {
4966 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4967 if (sglq_entry == NULL) {
4968 printk(KERN_ERR "%s: only allocated %d sgls of "
4969 "expected %d count. Unloading driver.\n",
4970 __func__, i, els_xri_cnt);
4971 goto out_free_mem;
4972 }
4973
da0436e9
JS		 4974 sglq_entry->buff_type = GEN_BUFF_TYPE;
4975 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4976 if (sglq_entry->virt == NULL) {
4977 kfree(sglq_entry);
4978 printk(KERN_ERR "%s: failed to allocate mbuf.\n"
4979 "Unloading driver.\n", __func__);
4980 goto out_free_mem;
4981 }
4982 sglq_entry->sgl = sglq_entry->virt;
4983 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4984
4985 /* The list order is used by later block SGL registraton */
4986 spin_lock_irq(&phba->hbalock);
0f65ff68 4987 sglq_entry->state = SGL_FREED;
da0436e9
JS		 4988 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
4989 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
4990 phba->sli4_hba.total_sglq_bufs++;
4991 spin_unlock_irq(&phba->hbalock);
4992 }
4993 return 0;
4994
4995out_free_mem:
4996 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4997 lpfc_free_sgl_list(phba);
4998 return -ENOMEM;
4999}
5000
5001/**
5002 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5003 * @phba: pointer to lpfc hba data structure.
5004 *
5005 * This routine is invoked to post rpi header templates to the
88a2cfbb 5006 * port for those SLI4 ports that do not support extents. This routine
da0436e9 5007 * posts a PAGE_SIZE memory region to the port to hold up to
88a2cfbb
JS		 5008 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
5009 * and should be called only when interrupts are disabled.
da0436e9
JS		 5010 *
5011 * Return codes
af901ca1 5012 * 0 - successful
88a2cfbb 5013 * -ERROR - otherwise.
da0436e9
JS		 5014 **/
5015int
5016lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5017{
5018 int rc = 0;
da0436e9
JS		 5019 struct lpfc_rpi_hdr *rpi_hdr;
5020
5021 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
da0436e9 5022 /*
6d368e53
JS		 5023 * If the SLI4 port supports extents, posting the rpi header isn't
5024 * required. Set the expected maximum count and let the actual value
5025 * get set when extents are fully allocated.
da0436e9 5026 */
6d368e53
JS		 5027 if (!phba->sli4_hba.rpi_hdrs_in_use) {
5028 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
5029 return rc;
5030 }
5031 if (phba->sli4_hba.extents_in_use)
5032 return -EIO;
da0436e9
JS		 5033
5034 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5035 if (!rpi_hdr) {
5036 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5037 "0391 Error during rpi post operation\n");
5038 lpfc_sli4_remove_rpis(phba);
5039 rc = -ENODEV;
5040 }
5041
5042 return rc;
5043}
5044
5045/**
5046 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5047 * @phba: pointer to lpfc hba data structure.
5048 *
5049 * This routine is invoked to allocate a single 4KB memory region to
5050 * support rpis and stores them in the phba. This single region
5051 * provides support for up to 64 rpis. The region is used globally
5052 * by the device.
5053 *
5054 * Returns:
5055 * A valid rpi hdr on success.
5056 * A NULL pointer on any failure.
5057 **/
5058struct lpfc_rpi_hdr *
5059lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5060{
5061 uint16_t rpi_limit, curr_rpi_range;
5062 struct lpfc_dmabuf *dmabuf;
5063 struct lpfc_rpi_hdr *rpi_hdr;
9589b062 5064 uint32_t rpi_count;
da0436e9 5065
6d368e53
JS		 5066 /*
5067 * If the SLI4 port supports extents, posting the rpi header isn't
5068 * required. Set the expected maximum count and let the actual value
5069 * get set when extents are fully allocated.
5070 */
5071 if (!phba->sli4_hba.rpi_hdrs_in_use)
5072 return NULL;
5073 if (phba->sli4_hba.extents_in_use)
5074 return NULL;
5075
5076 /* The limit on the logical index is just the max_rpi count. */
da0436e9 5077 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
6d368e53 5078 phba->sli4_hba.max_cfg_param.max_rpi - 1;
da0436e9
JS		 5079
5080 spin_lock_irq(&phba->hbalock);
6d368e53
JS		 5081 /*
5082 * Establish the starting RPI in this header block. The starting
5083 * rpi is normalized to a zero base because the physical rpi is
5084 * port based.
5085 */
5086 curr_rpi_range = phba->sli4_hba.next_rpi -
5087 phba->sli4_hba.max_cfg_param.rpi_base;
da0436e9
JS		 5088 spin_unlock_irq(&phba->hbalock);
5089
5090 /*
5091 * The port has a limited number of rpis. The increment here
5092 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5093 * and to allow the full max_rpi range per port.
5094 */
5095 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
9589b062
JS		 5096 rpi_count = rpi_limit - curr_rpi_range;
5097 else
5098 rpi_count = LPFC_RPI_HDR_COUNT;
da0436e9 5099
6d368e53
JS		 5100 if (!rpi_count)
5101 return NULL;
da0436e9
JS		 5102 /*
5103 * First allocate the protocol header region for the port. The
5104 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5105 */
5106 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5107 if (!dmabuf)
5108 return NULL;
5109
5110 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5111 LPFC_HDR_TEMPLATE_SIZE,
5112 &dmabuf->phys,
5113 GFP_KERNEL);
5114 if (!dmabuf->virt) {
5115 rpi_hdr = NULL;
5116 goto err_free_dmabuf;
5117 }
5118
5119 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5120 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5121 rpi_hdr = NULL;
5122 goto err_free_coherent;
5123 }
5124
5125 /* Save the rpi header data for cleanup later. */
5126 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5127 if (!rpi_hdr)
5128 goto err_free_coherent;
5129
5130 rpi_hdr->dmabuf = dmabuf;
5131 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5132 rpi_hdr->page_count = 1;
5133 spin_lock_irq(&phba->hbalock);
6d368e53
JS		 5134
5135 /* The rpi_hdr stores the logical index only. */
5136 rpi_hdr->start_rpi = curr_rpi_range;
da0436e9
JS		 5137 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5138
5139 /*
6d368e53
JS		 5140 * The next_rpi stores the next logical module-64 rpi value used
5141 * to post physical rpis in subsequent rpi postings.
da0436e9 5142 */
9589b062 5143 phba->sli4_hba.next_rpi += rpi_count;
da0436e9
JS		 5144 spin_unlock_irq(&phba->hbalock);
5145 return rpi_hdr;
5146
5147 err_free_coherent:
5148 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5149 dmabuf->virt, dmabuf->phys);
5150 err_free_dmabuf:
5151 kfree(dmabuf);
5152 return NULL;
5153}
5154
5155/**
5156 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5157 * @phba: pointer to lpfc hba data structure.
5158 *
5159 * This routine is invoked to remove all memory resources allocated
6d368e53
JS		 5160 * to support rpis for SLI4 ports not supporting extents. This routine
5161 * presumes the caller has released all rpis consumed by fabric or port
5162 * logins and is prepared to have the header pages removed.
da0436e9
JS		 5163 **/
5164void
5165lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5166{
5167 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5168
6d368e53
JS		 5169 if (!phba->sli4_hba.rpi_hdrs_in_use)
5170 goto exit;
5171
da0436e9
JS		 5172 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5173 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5174 list_del(&rpi_hdr->list);
5175 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5176 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5177 kfree(rpi_hdr->dmabuf);
5178 kfree(rpi_hdr);
5179 }
6d368e53
JS		 5180 exit:
5181 /* There are no rpis available to the port now. */
5182 phba->sli4_hba.next_rpi = 0;
da0436e9
JS		 5183}
5184
5185/**
5186 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5187 * @pdev: pointer to pci device data structure.
5188 *
5189 * This routine is invoked to allocate the driver hba data structure for an
5190 * HBA device. If the allocation is successful, the phba reference to the
5191 * PCI device data structure is set.
5192 *
5193 * Return codes
af901ca1 5194 * pointer to @phba - successful
da0436e9
JS		 5195 * NULL - error
5196 **/
5197static struct lpfc_hba *
5198lpfc_hba_alloc(struct pci_dev *pdev)
5199{
5200 struct lpfc_hba *phba;
5201
5202 /* Allocate memory for HBA structure */
5203 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5204 if (!phba) {
e34ccdfe 5205 dev_err(&pdev->dev, "failed to allocate hba struct\n");
da0436e9
JS		 5206 return NULL;
5207 }
5208
5209 /* Set reference to PCI device in HBA structure */
5210 phba->pcidev = pdev;
5211
5212 /* Assign an unused board number */
5213 phba->brd_no = lpfc_get_instance();
5214 if (phba->brd_no < 0) {
5215 kfree(phba);
5216 return NULL;
5217 }
5218
4fede78f 5219 spin_lock_init(&phba->ct_ev_lock);
f1c3b0fc
JS		 5220 INIT_LIST_HEAD(&phba->ct_ev_waiters);
5221
da0436e9
JS		 5222 return phba;
5223}
5224
5225/**
5226 * lpfc_hba_free - Free driver hba data structure with a device.
5227 * @phba: pointer to lpfc hba data structure.
5228 *
5229 * This routine is invoked to free the driver hba data structure with an
5230 * HBA device.
5231 **/
5232static void
5233lpfc_hba_free(struct lpfc_hba *phba)
5234{
5235 /* Release the driver assigned board number */
5236 idr_remove(&lpfc_hba_index, phba->brd_no);
5237
5238 kfree(phba);
5239 return;
5240}
5241
5242/**
5243 * lpfc_create_shost - Create hba physical port with associated scsi host.
5244 * @phba: pointer to lpfc hba data structure.
5245 *
5246 * This routine is invoked to create HBA physical port and associate a SCSI
5247 * host with it.
5248 *
5249 * Return codes
af901ca1 5250 * 0 - successful
da0436e9
JS		 5251 * other values - error
5252 **/
5253static int
5254lpfc_create_shost(struct lpfc_hba *phba)
5255{
5256 struct lpfc_vport *vport;
5257 struct Scsi_Host *shost;
5258
5259 /* Initialize HBA FC structure */
5260 phba->fc_edtov = FF_DEF_EDTOV;
5261 phba->fc_ratov = FF_DEF_RATOV;
5262 phba->fc_altov = FF_DEF_ALTOV;
5263 phba->fc_arbtov = FF_DEF_ARBTOV;
5264
d7c47992 5265 atomic_set(&phba->sdev_cnt, 0);
da0436e9
JS		 5266 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5267 if (!vport)
5268 return -ENODEV;
5269
5270 shost = lpfc_shost_from_vport(vport);
5271 phba->pport = vport;
5272 lpfc_debugfs_initialize(vport);
5273 /* Put reference to SCSI host to driver's device private data */
5274 pci_set_drvdata(phba->pcidev, shost);
2e0fef85 5275
3772a991
JS		 5276 return 0;
5277}
db2378e0 5278
3772a991
JS		 5279/**
5280 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5281 * @phba: pointer to lpfc hba data structure.
5282 *
5283 * This routine is invoked to destroy HBA physical port and the associated
5284 * SCSI host.
5285 **/
5286static void
5287lpfc_destroy_shost(struct lpfc_hba *phba)
5288{
5289 struct lpfc_vport *vport = phba->pport;
5290
5291 /* Destroy physical port that associated with the SCSI host */
5292 destroy_port(vport);
5293
5294 return;
5295}
5296
5297/**
5298 * lpfc_setup_bg - Setup Block guard structures and debug areas.
5299 * @phba: pointer to lpfc hba data structure.
5300 * @shost: the shost to be used to detect Block guard settings.
5301 *
5302 * This routine sets up the local Block guard protocol settings for @shost.
5303 * This routine also allocates memory for debugging bg buffers.
5304 **/
5305static void
5306lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5307{
5308 int pagecnt = 10;
5309 if (lpfc_prot_mask && lpfc_prot_guard) {
5310 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5311 "1478 Registering BlockGuard with the "
5312 "SCSI layer\n");
5313 scsi_host_set_prot(shost, lpfc_prot_mask);
5314 scsi_host_set_guard(shost, lpfc_prot_guard);
5315 }
5316 if (!_dump_buf_data) {
5317 while (pagecnt) {
5318 spin_lock_init(&_dump_buf_lock);
5319 _dump_buf_data =
5320 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5321 if (_dump_buf_data) {
6a9c52cf
JS		 5322 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5323 "9043 BLKGRD: allocated %d pages for "
3772a991
JS		 5324 "_dump_buf_data at 0x%p\n",
5325 (1 << pagecnt), _dump_buf_data);
5326 _dump_buf_data_order = pagecnt;
5327 memset(_dump_buf_data, 0,
5328 ((1 << PAGE_SHIFT) << pagecnt));
5329 break;
5330 } else
5331 --pagecnt;
5332 }
5333 if (!_dump_buf_data_order)
6a9c52cf
JS		 5334 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5335 "9044 BLKGRD: ERROR unable to allocate "
3772a991
JS		 5336 "memory for hexdump\n");
5337 } else
6a9c52cf
JS		 5338 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5339 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
3772a991
JS		 5340 "\n", _dump_buf_data);
5341 if (!_dump_buf_dif) {
5342 while (pagecnt) {
5343 _dump_buf_dif =
5344 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5345 if (_dump_buf_dif) {
6a9c52cf
JS		 5346 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5347 "9046 BLKGRD: allocated %d pages for "
3772a991
JS		 5348 "_dump_buf_dif at 0x%p\n",
5349 (1 << pagecnt), _dump_buf_dif);
5350 _dump_buf_dif_order = pagecnt;
5351 memset(_dump_buf_dif, 0,
5352 ((1 << PAGE_SHIFT) << pagecnt));
5353 break;
5354 } else
5355 --pagecnt;
5356 }
5357 if (!_dump_buf_dif_order)
6a9c52cf
JS		 5358 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5359 "9047 BLKGRD: ERROR unable to allocate "
3772a991
JS		 5360 "memory for hexdump\n");
5361 } else
6a9c52cf
JS		 5362 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5363 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
3772a991
JS		 5364 _dump_buf_dif);
5365}
5366
5367/**
5368 * lpfc_post_init_setup - Perform necessary device post initialization setup.
5369 * @phba: pointer to lpfc hba data structure.
5370 *
5371 * This routine is invoked to perform all the necessary post initialization
5372 * setup for the device.
5373 **/
5374static void
5375lpfc_post_init_setup(struct lpfc_hba *phba)
5376{
5377 struct Scsi_Host *shost;
5378 struct lpfc_adapter_event_header adapter_event;
5379
5380 /* Get the default values for Model Name and Description */
5381 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5382
5383 /*
5384 * hba setup may have changed the hba_queue_depth so we need to
5385 * adjust the value of can_queue.
5386 */
5387 shost = pci_get_drvdata(phba->pcidev);
5388 shost->can_queue = phba->cfg_hba_queue_depth - 10;
5389 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5390 lpfc_setup_bg(phba, shost);
5391
5392 lpfc_host_attrib_init(shost);
5393
5394 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5395 spin_lock_irq(shost->host_lock);
5396 lpfc_poll_start_timer(phba);
5397 spin_unlock_irq(shost->host_lock);
5398 }
5399
5400 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5401 "0428 Perform SCSI scan\n");
5402 /* Send board arrival event to upper layer */
5403 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5404 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5405 fc_host_post_vendor_event(shost, fc_get_event_number(),
5406 sizeof(adapter_event),
5407 (char *) &adapter_event,
5408 LPFC_NL_VENDOR_ID);
5409 return;
5410}
5411
5412/**
5413 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5414 * @phba: pointer to lpfc hba data structure.
5415 *
5416 * This routine is invoked to set up the PCI device memory space for device
5417 * with SLI-3 interface spec.
5418 *
5419 * Return codes
af901ca1 5420 * 0 - successful
3772a991
JS		 5421 * other values - error
5422 **/
5423static int
5424lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5425{
5426 struct pci_dev *pdev;
5427 unsigned long bar0map_len, bar2map_len;
5428 int i, hbq_count;
5429 void *ptr;
5430 int error = -ENODEV;
5431
5432 /* Obtain PCI device reference */
5433 if (!phba->pcidev)
5434 return error;
5435 else
5436 pdev = phba->pcidev;
5437
5438 /* Set the device DMA mask size */
8e68597d
MR		 5439 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5440 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5441 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5442 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
3772a991 5443 return error;
8e68597d
MR		 5444 }
5445 }
3772a991
JS		 5446
5447 /* Get the bus address of Bar0 and Bar2 and the number of bytes
5448 * required by each mapping.
5449 */
5450 phba->pci_bar0_map = pci_resource_start(pdev, 0);
5451 bar0map_len = pci_resource_len(pdev, 0);
5452
5453 phba->pci_bar2_map = pci_resource_start(pdev, 2);
5454 bar2map_len = pci_resource_len(pdev, 2);
5455
5456 /* Map HBA SLIM to a kernel virtual address. */
5457 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5458 if (!phba->slim_memmap_p) {
5459 dev_printk(KERN_ERR, &pdev->dev,
5460 "ioremap failed for SLIM memory.\n");
5461 goto out;
5462 }
5463
5464 /* Map HBA Control Registers to a kernel virtual address. */
5465 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5466 if (!phba->ctrl_regs_memmap_p) {
5467 dev_printk(KERN_ERR, &pdev->dev,
5468 "ioremap failed for HBA control registers.\n");
5469 goto out_iounmap_slim;
5470 }
5471
5472 /* Allocate memory for SLI-2 structures */
5473 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5474 SLI2_SLIM_SIZE,
5475 &phba->slim2p.phys,
5476 GFP_KERNEL);
5477 if (!phba->slim2p.virt)
5478 goto out_iounmap;
5479
5480 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5481 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7a470277
JS		 5482 phba->mbox_ext = (phba->slim2p.virt +
5483 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
3772a991
JS		 5484 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5485 phba->IOCBs = (phba->slim2p.virt +
5486 offsetof(struct lpfc_sli2_slim, IOCBs));
5487
5488 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5489 lpfc_sli_hbq_size(),
5490 &phba->hbqslimp.phys,
5491 GFP_KERNEL);
5492 if (!phba->hbqslimp.virt)
5493 goto out_free_slim;
5494
5495 hbq_count = lpfc_sli_hbq_count();
5496 ptr = phba->hbqslimp.virt;
5497 for (i = 0; i < hbq_count; ++i) {
5498 phba->hbqs[i].hbq_virt = ptr;
5499 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5500 ptr += (lpfc_hbq_defs[i]->entry_count *
5501 sizeof(struct lpfc_hbq_entry));
5502 }
5503 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5504 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5505
5506 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5507
5508 INIT_LIST_HEAD(&phba->rb_pend_list);
5509
5510 phba->MBslimaddr = phba->slim_memmap_p;
5511 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5512 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5513 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5514 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5515
5516 return 0;
5517
5518out_free_slim:
5519 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5520 phba->slim2p.virt, phba->slim2p.phys);
5521out_iounmap:
5522 iounmap(phba->ctrl_regs_memmap_p);
5523out_iounmap_slim:
5524 iounmap(phba->slim_memmap_p);
5525out:
5526 return error;
5527}
5528
5529/**
5530 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5531 * @phba: pointer to lpfc hba data structure.
5532 *
5533 * This routine is invoked to unset the PCI device memory space for device
5534 * with SLI-3 interface spec.
5535 **/
5536static void
5537lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5538{
5539 struct pci_dev *pdev;
5540
5541 /* Obtain PCI device reference */
5542 if (!phba->pcidev)
5543 return;
5544 else
5545 pdev = phba->pcidev;
5546
5547 /* Free coherent DMA memory allocated */
5548 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5549 phba->hbqslimp.virt, phba->hbqslimp.phys);
5550 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5551 phba->slim2p.virt, phba->slim2p.phys);
5552
5553 /* I/O memory unmap */
5554 iounmap(phba->ctrl_regs_memmap_p);
5555 iounmap(phba->slim_memmap_p);
5556
5557 return;
5558}
5559
5560/**
da0436e9 5561 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
3772a991
JS		 5562 * @phba: pointer to lpfc hba data structure.
5563 *
da0436e9
JS		 5564 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5565 * done and check status.
3772a991 5566 *
da0436e9 5567 * Return 0 if successful, otherwise -ENODEV.
3772a991 5568 **/
da0436e9
JS		 5569int
5570lpfc_sli4_post_status_check(struct lpfc_hba *phba)
3772a991 5571{
2fcee4bf
JS		 5572 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
5573 struct lpfc_register reg_data;
5574 int i, port_error = 0;
5575 uint32_t if_type;
3772a991 5576
9940b97b
JS		 5577 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
5578 memset(&reg_data, 0, sizeof(reg_data));
2fcee4bf 5579 if (!phba->sli4_hba.PSMPHRregaddr)
da0436e9 5580 return -ENODEV;
3772a991 5581
da0436e9
JS		 5582 /* Wait up to 30 seconds for the SLI Port POST done and ready */
5583 for (i = 0; i < 3000; i++) {
9940b97b
JS		 5584 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
5585 &portsmphr_reg.word0) ||
5586 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
2fcee4bf 5587 /* Port has a fatal POST error, break out */
da0436e9
JS		 5588 port_error = -ENODEV;
5589 break;
5590 }
2fcee4bf
JS		 5591 if (LPFC_POST_STAGE_PORT_READY ==
5592 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
da0436e9 5593 break;
da0436e9 5594 msleep(10);
3772a991
JS		 5595 }
5596
2fcee4bf
JS		 5597 /*
5598 * If there was a port error during POST, then don't proceed with
5599 * other register reads as the data may not be valid. Just exit.
5600 */
5601 if (port_error) {
da0436e9 5602 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2fcee4bf
JS		 5603 "1408 Port Failed POST - portsmphr=0x%x, "
5604 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
5605 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
5606 portsmphr_reg.word0,
5607 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
5608 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
5609 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
5610 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
5611 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
5612 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
5613 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
5614 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
5615 } else {
28baac74 5616 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2fcee4bf
JS		 5617 "2534 Device Info: SLIFamily=0x%x, "
5618 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
5619 "SLIHint_2=0x%x, FT=0x%x\n",
28baac74
JS		 5620 bf_get(lpfc_sli_intf_sli_family,
5621 &phba->sli4_hba.sli_intf),
5622 bf_get(lpfc_sli_intf_slirev,
5623 &phba->sli4_hba.sli_intf),
085c647c
JS		 5624 bf_get(lpfc_sli_intf_if_type,
5625 &phba->sli4_hba.sli_intf),
5626 bf_get(lpfc_sli_intf_sli_hint1,
28baac74 5627 &phba->sli4_hba.sli_intf),
085c647c
JS		 5628 bf_get(lpfc_sli_intf_sli_hint2,
5629 &phba->sli4_hba.sli_intf),
5630 bf_get(lpfc_sli_intf_func_type,
28baac74 5631 &phba->sli4_hba.sli_intf));
2fcee4bf
JS		 5632 /*
5633 * Check for other Port errors during the initialization
5634 * process. Fail the load if the port did not come up
5635 * correctly.
5636 */
5637 if_type = bf_get(lpfc_sli_intf_if_type,
5638 &phba->sli4_hba.sli_intf);
5639 switch (if_type) {
5640 case LPFC_SLI_INTF_IF_TYPE_0:
5641 phba->sli4_hba.ue_mask_lo =
5642 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
5643 phba->sli4_hba.ue_mask_hi =
5644 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
5645 uerrlo_reg.word0 =
5646 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
5647 uerrhi_reg.word0 =
5648 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
5649 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5650 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5651 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5652 "1422 Unrecoverable Error "
5653 "Detected during POST "
5654 "uerr_lo_reg=0x%x, "
5655 "uerr_hi_reg=0x%x, "
5656 "ue_mask_lo_reg=0x%x, "
5657 "ue_mask_hi_reg=0x%x\n",
5658 uerrlo_reg.word0,
5659 uerrhi_reg.word0,
5660 phba->sli4_hba.ue_mask_lo,
5661 phba->sli4_hba.ue_mask_hi);
5662 port_error = -ENODEV;
5663 }
5664 break;
5665 case LPFC_SLI_INTF_IF_TYPE_2:
5666 /* Final checks. The port status should be clean. */
9940b97b
JS		 5667 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
5668 &reg_data.word0) ||
0558056c
JS		 5669 (bf_get(lpfc_sliport_status_err, &reg_data) &&
5670 !bf_get(lpfc_sliport_status_rn, &reg_data))) {
2fcee4bf
JS		 5671 phba->work_status[0] =
5672 readl(phba->sli4_hba.u.if_type2.
5673 ERR1regaddr);
5674 phba->work_status[1] =
5675 readl(phba->sli4_hba.u.if_type2.
5676 ERR2regaddr);
5677 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5678 "2888 Port Error Detected "
5679 "during POST: "
5680 "port status reg 0x%x, "
5681 "port_smphr reg 0x%x, "
5682 "error 1=0x%x, error 2=0x%x\n",
5683 reg_data.word0,
5684 portsmphr_reg.word0,
5685 phba->work_status[0],
5686 phba->work_status[1]);
5687 port_error = -ENODEV;
5688 }
5689 break;
5690 case LPFC_SLI_INTF_IF_TYPE_1:
5691 default:
5692 break;
5693 }
28baac74 5694 }
da0436e9
JS		 5695 return port_error;
5696}
3772a991 5697
da0436e9
JS		 5698/**
5699 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5700 * @phba: pointer to lpfc hba data structure.
2fcee4bf 5701 * @if_type: The SLI4 interface type getting configured.
da0436e9
JS		 5702 *
5703 * This routine is invoked to set up SLI4 BAR0 PCI config space register
5704 * memory map.
5705 **/
5706static void
2fcee4bf
JS		 5707lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
5708{
5709 switch (if_type) {
5710 case LPFC_SLI_INTF_IF_TYPE_0:
5711 phba->sli4_hba.u.if_type0.UERRLOregaddr =
5712 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
5713 phba->sli4_hba.u.if_type0.UERRHIregaddr =
5714 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
5715 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
5716 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
5717 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
5718 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
5719 phba->sli4_hba.SLIINTFregaddr =
5720 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5721 break;
5722 case LPFC_SLI_INTF_IF_TYPE_2:
5723 phba->sli4_hba.u.if_type2.ERR1regaddr =
88a2cfbb
JS		 5724 phba->sli4_hba.conf_regs_memmap_p +
5725 LPFC_CTL_PORT_ER1_OFFSET;
2fcee4bf 5726 phba->sli4_hba.u.if_type2.ERR2regaddr =
88a2cfbb
JS		 5727 phba->sli4_hba.conf_regs_memmap_p +
5728 LPFC_CTL_PORT_ER2_OFFSET;
2fcee4bf 5729 phba->sli4_hba.u.if_type2.CTRLregaddr =
88a2cfbb
JS		 5730 phba->sli4_hba.conf_regs_memmap_p +
5731 LPFC_CTL_PORT_CTL_OFFSET;
2fcee4bf 5732 phba->sli4_hba.u.if_type2.STATUSregaddr =
88a2cfbb
JS		 5733 phba->sli4_hba.conf_regs_memmap_p +
5734 LPFC_CTL_PORT_STA_OFFSET;
2fcee4bf
JS		 5735 phba->sli4_hba.SLIINTFregaddr =
5736 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5737 phba->sli4_hba.PSMPHRregaddr =
88a2cfbb
JS		 5738 phba->sli4_hba.conf_regs_memmap_p +
5739 LPFC_CTL_PORT_SEM_OFFSET;
2fcee4bf
JS		 5740 phba->sli4_hba.RQDBregaddr =
5741 phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
5742 phba->sli4_hba.WQDBregaddr =
5743 phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
5744 phba->sli4_hba.EQCQDBregaddr =
5745 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
5746 phba->sli4_hba.MQDBregaddr =
5747 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
5748 phba->sli4_hba.BMBXregaddr =
5749 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
5750 break;
5751 case LPFC_SLI_INTF_IF_TYPE_1:
5752 default:
5753 dev_printk(KERN_ERR, &phba->pcidev->dev,
5754 "FATAL - unsupported SLI4 interface type - %d\n",
5755 if_type);
5756 break;
5757 }
da0436e9 5758}
3772a991 5759
da0436e9
JS		 5760/**
5761 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5762 * @phba: pointer to lpfc hba data structure.
5763 *
5764 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5765 * memory map.
5766 **/
5767static void
5768lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5769{
2fcee4bf
JS		 5770 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5771 LPFC_SLIPORT_IF0_SMPHR;
da0436e9 5772 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 5773 LPFC_HST_ISR0;
da0436e9 5774 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 5775 LPFC_HST_IMR0;
da0436e9 5776 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 5777 LPFC_HST_ISCR0;
3772a991
JS		 5778}
5779
5780/**
da0436e9 5781 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
3772a991 5782 * @phba: pointer to lpfc hba data structure.
da0436e9 5783 * @vf: virtual function number
3772a991 5784 *
da0436e9
JS		 5785 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5786 * based on the given viftual function number, @vf.
5787 *
5788 * Return 0 if successful, otherwise -ENODEV.
3772a991 5789 **/
da0436e9
JS		 5790static int
5791lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
3772a991 5792{
da0436e9
JS		 5793 if (vf > LPFC_VIR_FUNC_MAX)
5794 return -ENODEV;
3772a991 5795
da0436e9
JS		 5796 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5797 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5798 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5799 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5800 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5801 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5802 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5803 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5804 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5805 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5806 return 0;
3772a991
JS		 5807}
5808
5809/**
da0436e9 5810 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
3772a991
JS		 5811 * @phba: pointer to lpfc hba data structure.
5812 *
da0436e9
JS		 5813 * This routine is invoked to create the bootstrap mailbox
5814 * region consistent with the SLI-4 interface spec. This
5815 * routine allocates all memory necessary to communicate
5816 * mailbox commands to the port and sets up all alignment
5817 * needs. No locks are expected to be held when calling
5818 * this routine.
3772a991
JS		 5819 *
5820 * Return codes
af901ca1 5821 * 0 - successful
d439d286 5822 * -ENOMEM - could not allocated memory.
da0436e9 5823 **/
3772a991 5824static int
da0436e9 5825lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
3772a991 5826{
da0436e9
JS		 5827 uint32_t bmbx_size;
5828 struct lpfc_dmabuf *dmabuf;
5829 struct dma_address *dma_address;
5830 uint32_t pa_addr;
5831 uint64_t phys_addr;
5832
5833 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5834 if (!dmabuf)
5835 return -ENOMEM;
3772a991 5836
da0436e9
JS		 5837 /*
5838 * The bootstrap mailbox region is comprised of 2 parts
5839 * plus an alignment restriction of 16 bytes.
5840 */
5841 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5842 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5843 bmbx_size,
5844 &dmabuf->phys,
5845 GFP_KERNEL);
5846 if (!dmabuf->virt) {
5847 kfree(dmabuf);
5848 return -ENOMEM;
3772a991 5849 }
da0436e9 5850 memset(dmabuf->virt, 0, bmbx_size);
3772a991 5851
da0436e9
JS		 5852 /*
5853 * Initialize the bootstrap mailbox pointers now so that the register
5854 * operations are simple later. The mailbox dma address is required
5855 * to be 16-byte aligned. Also align the virtual memory as each
5856 * maibox is copied into the bmbx mailbox region before issuing the
5857 * command to the port.
5858 */
5859 phba->sli4_hba.bmbx.dmabuf = dmabuf;
5860 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
5861
5862 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
5863 LPFC_ALIGN_16_BYTE);
5864 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
5865 LPFC_ALIGN_16_BYTE);
5866
5867 /*
5868 * Set the high and low physical addresses now. The SLI4 alignment
5869 * requirement is 16 bytes and the mailbox is posted to the port
5870 * as two 30-bit addresses. The other data is a bit marking whether
5871 * the 30-bit address is the high or low address.
5872 * Upcast bmbx aphys to 64bits so shift instruction compiles
5873 * clean on 32 bit machines.
5874 */
5875 dma_address = &phba->sli4_hba.bmbx.dma_address;
5876 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
5877 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
5878 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
5879 LPFC_BMBX_BIT1_ADDR_HI);
5880
5881 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
5882 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
5883 LPFC_BMBX_BIT1_ADDR_LO);
5884 return 0;
3772a991
JS		 5885}
5886
5887/**
da0436e9 5888 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
3772a991
JS		 5889 * @phba: pointer to lpfc hba data structure.
5890 *
da0436e9
JS		 5891 * This routine is invoked to teardown the bootstrap mailbox
5892 * region and release all host resources. This routine requires
5893 * the caller to ensure all mailbox commands recovered, no
5894 * additional mailbox comands are sent, and interrupts are disabled
5895 * before calling this routine.
5896 *
5897 **/
3772a991 5898static void
da0436e9 5899lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
3772a991 5900{
da0436e9
JS		 5901 dma_free_coherent(&phba->pcidev->dev,
5902 phba->sli4_hba.bmbx.bmbx_size,
5903 phba->sli4_hba.bmbx.dmabuf->virt,
5904 phba->sli4_hba.bmbx.dmabuf->phys);
5905
5906 kfree(phba->sli4_hba.bmbx.dmabuf);
5907 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
3772a991
JS		 5908}
5909
5910/**
da0436e9 5911 * lpfc_sli4_read_config - Get the config parameters.
3772a991
JS		 5912 * @phba: pointer to lpfc hba data structure.
5913 *
da0436e9
JS		 5914 * This routine is invoked to read the configuration parameters from the HBA.
5915 * The configuration parameters are used to set the base and maximum values
5916 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5917 * allocation for the port.
3772a991
JS		 5918 *
5919 * Return codes
af901ca1 5920 * 0 - successful
25985edc 5921 * -ENOMEM - No available memory
d439d286 5922 * -EIO - The mailbox failed to complete successfully.
3772a991 5923 **/
da0436e9
JS		 5924static int
5925lpfc_sli4_read_config(struct lpfc_hba *phba)
3772a991 5926{
da0436e9
JS		 5927 LPFC_MBOXQ_t *pmb;
5928 struct lpfc_mbx_read_config *rd_config;
912e3acd
JS		 5929 union lpfc_sli4_cfg_shdr *shdr;
5930 uint32_t shdr_status, shdr_add_status;
5931 struct lpfc_mbx_get_func_cfg *get_func_cfg;
5932 struct lpfc_rsrc_desc_fcfcoe *desc;
5933 uint32_t desc_count;
5934 int length, i, rc = 0;
3772a991 5935
da0436e9
JS		 5936 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5937 if (!pmb) {
5938 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5939 "2011 Unable to allocate memory for issuing "
5940 "SLI_CONFIG_SPECIAL mailbox command\n");
5941 return -ENOMEM;
3772a991
JS		 5942 }
5943
da0436e9 5944 lpfc_read_config(phba, pmb);
3772a991 5945
da0436e9
JS		 5946 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5947 if (rc != MBX_SUCCESS) {
5948 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5949 "2012 Mailbox failed , mbxCmd x%x "
5950 "READ_CONFIG, mbxStatus x%x\n",
5951 bf_get(lpfc_mqe_command, &pmb->u.mqe),
5952 bf_get(lpfc_mqe_status, &pmb->u.mqe));
5953 rc = -EIO;
5954 } else {
5955 rd_config = &pmb->u.mqe.un.rd_config;
6d368e53
JS		 5956 phba->sli4_hba.extents_in_use =
5957 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
da0436e9
JS		 5958 phba->sli4_hba.max_cfg_param.max_xri =
5959 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
5960 phba->sli4_hba.max_cfg_param.xri_base =
5961 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
5962 phba->sli4_hba.max_cfg_param.max_vpi =
5963 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
5964 phba->sli4_hba.max_cfg_param.vpi_base =
5965 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
5966 phba->sli4_hba.max_cfg_param.max_rpi =
5967 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
5968 phba->sli4_hba.max_cfg_param.rpi_base =
5969 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
5970 phba->sli4_hba.max_cfg_param.max_vfi =
5971 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
5972 phba->sli4_hba.max_cfg_param.vfi_base =
5973 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
5974 phba->sli4_hba.max_cfg_param.max_fcfi =
5975 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
da0436e9
JS		 5976 phba->sli4_hba.max_cfg_param.max_eq =
5977 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
5978 phba->sli4_hba.max_cfg_param.max_rq =
5979 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
5980 phba->sli4_hba.max_cfg_param.max_wq =
5981 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
5982 phba->sli4_hba.max_cfg_param.max_cq =
5983 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
5984 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
5985 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
5986 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
5987 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5988 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
5ffc266e
JS		 5989 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
5990 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
da0436e9
JS		 5991 phba->max_vports = phba->max_vpi;
5992 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6d368e53
JS		 5993 "2003 cfg params Extents? %d "
5994 "XRI(B:%d M:%d), "
da0436e9
JS		 5995 "VPI(B:%d M:%d) "
5996 "VFI(B:%d M:%d) "
5997 "RPI(B:%d M:%d) "
6d368e53
JS		 5998 "FCFI(Count:%d)\n",
5999 phba->sli4_hba.extents_in_use,
da0436e9
JS		 6000 phba->sli4_hba.max_cfg_param.xri_base,
6001 phba->sli4_hba.max_cfg_param.max_xri,
6002 phba->sli4_hba.max_cfg_param.vpi_base,
6003 phba->sli4_hba.max_cfg_param.max_vpi,
6004 phba->sli4_hba.max_cfg_param.vfi_base,
6005 phba->sli4_hba.max_cfg_param.max_vfi,
6006 phba->sli4_hba.max_cfg_param.rpi_base,
6007 phba->sli4_hba.max_cfg_param.max_rpi,
da0436e9 6008 phba->sli4_hba.max_cfg_param.max_fcfi);
3772a991 6009 }
912e3acd
JS		 6010
6011 if (rc)
6012 goto read_cfg_out;
da0436e9
JS		 6013
6014 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
b92938b4
JS		 6015 if (phba->cfg_hba_queue_depth >
6016 (phba->sli4_hba.max_cfg_param.max_xri -
6017 lpfc_sli4_get_els_iocb_cnt(phba)))
da0436e9 6018 phba->cfg_hba_queue_depth =
b92938b4
JS		 6019 phba->sli4_hba.max_cfg_param.max_xri -
6020 lpfc_sli4_get_els_iocb_cnt(phba);
912e3acd
JS		 6021
6022 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6023 LPFC_SLI_INTF_IF_TYPE_2)
6024 goto read_cfg_out;
6025
6026 /* get the pf# and vf# for SLI4 if_type 2 port */
6027 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6028 sizeof(struct lpfc_sli4_cfg_mhdr));
6029 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6030 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6031 length, LPFC_SLI4_MBX_EMBED);
6032
6033 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6034 shdr = (union lpfc_sli4_cfg_shdr *)
6035 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6036 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6037 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6038 if (rc || shdr_status || shdr_add_status) {
6039 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6040 "3026 Mailbox failed , mbxCmd x%x "
6041 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6042 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6043 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6044 rc = -EIO;
6045 goto read_cfg_out;
6046 }
6047
6048 /* search for fc_fcoe resrouce descriptor */
6049 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6050 desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6051
6052 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6053 desc = (struct lpfc_rsrc_desc_fcfcoe *)
6054 &get_func_cfg->func_cfg.desc[i];
6055 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6056 bf_get(lpfc_rsrc_desc_pcie_type, desc)) {
6057 phba->sli4_hba.iov.pf_number =
6058 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6059 phba->sli4_hba.iov.vf_number =
6060 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6061 break;
6062 }
6063 }
6064
6065 if (i < LPFC_RSRC_DESC_MAX_NUM)
6066 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6067 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6068 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6069 phba->sli4_hba.iov.vf_number);
6070 else {
6071 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6072 "3028 GET_FUNCTION_CONFIG: failed to find "
6073 "Resrouce Descriptor:x%x\n",
6074 LPFC_RSRC_DESC_TYPE_FCFCOE);
6075 rc = -EIO;
6076 }
6077
6078read_cfg_out:
6079 mempool_free(pmb, phba->mbox_mem_pool);
da0436e9 6080 return rc;
3772a991
JS		 6081}
6082
6083/**
2fcee4bf 6084 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
3772a991
JS		 6085 * @phba: pointer to lpfc hba data structure.
6086 *
2fcee4bf
JS		 6087 * This routine is invoked to setup the port-side endian order when
6088 * the port if_type is 0. This routine has no function for other
6089 * if_types.
da0436e9
JS		 6090 *
6091 * Return codes
af901ca1 6092 * 0 - successful
25985edc 6093 * -ENOMEM - No available memory
d439d286 6094 * -EIO - The mailbox failed to complete successfully.
3772a991 6095 **/
da0436e9
JS		 6096static int
6097lpfc_setup_endian_order(struct lpfc_hba *phba)
3772a991 6098{
da0436e9 6099 LPFC_MBOXQ_t *mboxq;
2fcee4bf 6100 uint32_t if_type, rc = 0;
da0436e9
JS		 6101 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6102 HOST_ENDIAN_HIGH_WORD1};
3772a991 6103
2fcee4bf
JS		 6104 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6105 switch (if_type) {
6106 case LPFC_SLI_INTF_IF_TYPE_0:
6107 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6108 GFP_KERNEL);
6109 if (!mboxq) {
6110 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6111 "0492 Unable to allocate memory for "
6112 "issuing SLI_CONFIG_SPECIAL mailbox "
6113 "command\n");
6114 return -ENOMEM;
6115 }
3772a991 6116
2fcee4bf
JS		 6117 /*
6118 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6119 * two words to contain special data values and no other data.
6120 */
6121 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6122 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6123 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6124 if (rc != MBX_SUCCESS) {
6125 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6126 "0493 SLI_CONFIG_SPECIAL mailbox "
6127 "failed with status x%x\n",
6128 rc);
6129 rc = -EIO;
6130 }
6131 mempool_free(mboxq, phba->mbox_mem_pool);
6132 break;
6133 case LPFC_SLI_INTF_IF_TYPE_2:
6134 case LPFC_SLI_INTF_IF_TYPE_1:
6135 default:
6136 break;
da0436e9 6137 }
da0436e9 6138 return rc;
3772a991
JS		 6139}
6140
6141/**
da0436e9 6142 * lpfc_sli4_queue_create - Create all the SLI4 queues
3772a991
JS		 6143 * @phba: pointer to lpfc hba data structure.
6144 *
da0436e9
JS		 6145 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6146 * operation. For each SLI4 queue type, the parameters such as queue entry
6147 * count (queue depth) shall be taken from the module parameter. For now,
6148 * we just use some constant number as place holder.
6149 *
6150 * Return codes
af901ca1 6151 * 0 - successful
25985edc 6152 * -ENOMEM - No available memory
d439d286 6153 * -EIO - The mailbox failed to complete successfully.
3772a991 6154 **/
da0436e9
JS		 6155static int
6156lpfc_sli4_queue_create(struct lpfc_hba *phba)
3772a991 6157{
da0436e9
JS		 6158 struct lpfc_queue *qdesc;
6159 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6160 int cfg_fcp_wq_count;
6161 int cfg_fcp_eq_count;
3772a991 6162
da0436e9
JS		 6163 /*
6164 * Sanity check for confiugred queue parameters against the run-time
6165 * device parameters
6166 */
3772a991 6167
da0436e9
JS		 6168 /* Sanity check on FCP fast-path WQ parameters */
6169 cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
6170 if (cfg_fcp_wq_count >
6171 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
6172 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
6173 LPFC_SP_WQN_DEF;
6174 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
6175 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6176 "2581 Not enough WQs (%d) from "
6177 "the pci function for supporting "
6178 "FCP WQs (%d)\n",
6179 phba->sli4_hba.max_cfg_param.max_wq,
6180 phba->cfg_fcp_wq_count);
6181 goto out_error;
6182 }
6183 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6184 "2582 Not enough WQs (%d) from the pci "
6185 "function for supporting the requested "
6186 "FCP WQs (%d), the actual FCP WQs can "
6187 "be supported: %d\n",
6188 phba->sli4_hba.max_cfg_param.max_wq,
6189 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
6190 }
6191 /* The actual number of FCP work queues adopted */
6192 phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
6193
6194 /* Sanity check on FCP fast-path EQ parameters */
6195 cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
6196 if (cfg_fcp_eq_count >
6197 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
6198 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
6199 LPFC_SP_EQN_DEF;
6200 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
6201 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6202 "2574 Not enough EQs (%d) from the "
6203 "pci function for supporting FCP "
6204 "EQs (%d)\n",
6205 phba->sli4_hba.max_cfg_param.max_eq,
6206 phba->cfg_fcp_eq_count);
6207 goto out_error;
6208 }
6209 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6210 "2575 Not enough EQs (%d) from the pci "
6211 "function for supporting the requested "
6212 "FCP EQs (%d), the actual FCP EQs can "
6213 "be supported: %d\n",
6214 phba->sli4_hba.max_cfg_param.max_eq,
6215 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
6216 }
6217 /* It does not make sense to have more EQs than WQs */
6218 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
6219 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6a9c52cf
JS		 6220 "2593 The FCP EQ count(%d) cannot be greater "
6221 "than the FCP WQ count(%d), limiting the "
6222 "FCP EQ count to %d\n", cfg_fcp_eq_count,
da0436e9
JS		 6223 phba->cfg_fcp_wq_count,
6224 phba->cfg_fcp_wq_count);
6225 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
6226 }
6227 /* The actual number of FCP event queues adopted */
6228 phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
6229 /* The overall number of event queues used */
6230 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
3772a991 6231
da0436e9
JS		 6232 /*
6233 * Create Event Queues (EQs)
6234 */
3772a991 6235
da0436e9
JS		 6236 /* Get EQ depth from module parameter, fake the default for now */
6237 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6238 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
3772a991 6239
da0436e9
JS		 6240 /* Create slow path event queue */
6241 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6242 phba->sli4_hba.eq_ecount);
6243 if (!qdesc) {
6244 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6245 "0496 Failed allocate slow-path EQ\n");
6246 goto out_error;
6247 }
6248 phba->sli4_hba.sp_eq = qdesc;
6249
6250 /* Create fast-path FCP Event Queue(s) */
6251 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
6252 phba->cfg_fcp_eq_count), GFP_KERNEL);
6253 if (!phba->sli4_hba.fp_eq) {
6254 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6255 "2576 Failed allocate memory for fast-path "
6256 "EQ record array\n");
6257 goto out_free_sp_eq;
6258 }
6259 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6260 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6261 phba->sli4_hba.eq_ecount);
6262 if (!qdesc) {
6263 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6264 "0497 Failed allocate fast-path EQ\n");
6265 goto out_free_fp_eq;
6266 }
6267 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
6268 }
6269
6270 /*
6271 * Create Complete Queues (CQs)
6272 */
6273
6274 /* Get CQ depth from module parameter, fake the default for now */
6275 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6276 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6277
6278 /* Create slow-path Mailbox Command Complete Queue */
6279 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6280 phba->sli4_hba.cq_ecount);
6281 if (!qdesc) {
6282 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6283 "0500 Failed allocate slow-path mailbox CQ\n");
6284 goto out_free_fp_eq;
6285 }
6286 phba->sli4_hba.mbx_cq = qdesc;
6287
6288 /* Create slow-path ELS Complete Queue */
6289 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6290 phba->sli4_hba.cq_ecount);
6291 if (!qdesc) {
6292 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6293 "0501 Failed allocate slow-path ELS CQ\n");
6294 goto out_free_mbx_cq;
6295 }
6296 phba->sli4_hba.els_cq = qdesc;
6297
da0436e9
JS		 6298
6299 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
6300 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6301 phba->cfg_fcp_eq_count), GFP_KERNEL);
6302 if (!phba->sli4_hba.fcp_cq) {
6303 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6304 "2577 Failed allocate memory for fast-path "
6305 "CQ record array\n");
4d9ab994 6306 goto out_free_els_cq;
da0436e9
JS		 6307 }
6308 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6309 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6310 phba->sli4_hba.cq_ecount);
6311 if (!qdesc) {
6312 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6313 "0499 Failed allocate fast-path FCP "
6314 "CQ (%d)\n", fcp_cqidx);
6315 goto out_free_fcp_cq;
6316 }
6317 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
6318 }
6319
6320 /* Create Mailbox Command Queue */
6321 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6322 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6323
6324 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
6325 phba->sli4_hba.mq_ecount);
6326 if (!qdesc) {
6327 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6328 "0505 Failed allocate slow-path MQ\n");
6329 goto out_free_fcp_cq;
6330 }
6331 phba->sli4_hba.mbx_wq = qdesc;
6332
6333 /*
6334 * Create all the Work Queues (WQs)
6335 */
6336 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6337 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6338
6339 /* Create slow-path ELS Work Queue */
6340 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6341 phba->sli4_hba.wq_ecount);
6342 if (!qdesc) {
6343 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6344 "0504 Failed allocate slow-path ELS WQ\n");
6345 goto out_free_mbx_wq;
6346 }
6347 phba->sli4_hba.els_wq = qdesc;
6348
6349 /* Create fast-path FCP Work Queue(s) */
6350 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6351 phba->cfg_fcp_wq_count), GFP_KERNEL);
6352 if (!phba->sli4_hba.fcp_wq) {
6353 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6354 "2578 Failed allocate memory for fast-path "
6355 "WQ record array\n");
6356 goto out_free_els_wq;
6357 }
6358 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6359 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6360 phba->sli4_hba.wq_ecount);
6361 if (!qdesc) {
6362 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6363 "0503 Failed allocate fast-path FCP "
6364 "WQ (%d)\n", fcp_wqidx);
6365 goto out_free_fcp_wq;
6366 }
6367 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
6368 }
6369
6370 /*
6371 * Create Receive Queue (RQ)
6372 */
6373 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6374 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6375
6376 /* Create Receive Queue for header */
6377 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6378 phba->sli4_hba.rq_ecount);
6379 if (!qdesc) {
6380 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6381 "0506 Failed allocate receive HRQ\n");
6382 goto out_free_fcp_wq;
6383 }
6384 phba->sli4_hba.hdr_rq = qdesc;
6385
6386 /* Create Receive Queue for data */
6387 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6388 phba->sli4_hba.rq_ecount);
6389 if (!qdesc) {
6390 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6391 "0507 Failed allocate receive DRQ\n");
6392 goto out_free_hdr_rq;
6393 }
6394 phba->sli4_hba.dat_rq = qdesc;
6395
6396 return 0;
6397
6398out_free_hdr_rq:
6399 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6400 phba->sli4_hba.hdr_rq = NULL;
6401out_free_fcp_wq:
6402 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
6403 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
6404 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
6405 }
6406 kfree(phba->sli4_hba.fcp_wq);
6407out_free_els_wq:
6408 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6409 phba->sli4_hba.els_wq = NULL;
6410out_free_mbx_wq:
6411 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6412 phba->sli4_hba.mbx_wq = NULL;
6413out_free_fcp_cq:
6414 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
6415 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
6416 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
6417 }
6418 kfree(phba->sli4_hba.fcp_cq);
da0436e9
JS		 6419out_free_els_cq:
6420 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6421 phba->sli4_hba.els_cq = NULL;
6422out_free_mbx_cq:
6423 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6424 phba->sli4_hba.mbx_cq = NULL;
6425out_free_fp_eq:
6426 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
6427 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
6428 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
6429 }
6430 kfree(phba->sli4_hba.fp_eq);
6431out_free_sp_eq:
6432 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6433 phba->sli4_hba.sp_eq = NULL;
6434out_error:
6435 return -ENOMEM;
6436}
6437
6438/**
6439 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6440 * @phba: pointer to lpfc hba data structure.
6441 *
6442 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6443 * operation.
6444 *
6445 * Return codes
af901ca1 6446 * 0 - successful
25985edc 6447 * -ENOMEM - No available memory
d439d286 6448 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 6449 **/
6450static void
6451lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
6452{
6453 int fcp_qidx;
6454
6455 /* Release mailbox command work queue */
6456 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6457 phba->sli4_hba.mbx_wq = NULL;
6458
6459 /* Release ELS work queue */
6460 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6461 phba->sli4_hba.els_wq = NULL;
6462
6463 /* Release FCP work queue */
6464 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6465 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
6466 kfree(phba->sli4_hba.fcp_wq);
6467 phba->sli4_hba.fcp_wq = NULL;
6468
6469 /* Release unsolicited receive queue */
6470 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6471 phba->sli4_hba.hdr_rq = NULL;
6472 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
6473 phba->sli4_hba.dat_rq = NULL;
6474
da0436e9
JS		 6475 /* Release ELS complete queue */
6476 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6477 phba->sli4_hba.els_cq = NULL;
6478
6479 /* Release mailbox command complete queue */
6480 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6481 phba->sli4_hba.mbx_cq = NULL;
6482
6483 /* Release FCP response complete queue */
0558056c
JS		 6484 fcp_qidx = 0;
6485 do
da0436e9 6486 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
0558056c 6487 while (++fcp_qidx < phba->cfg_fcp_eq_count);
da0436e9
JS		 6488 kfree(phba->sli4_hba.fcp_cq);
6489 phba->sli4_hba.fcp_cq = NULL;
6490
6491 /* Release fast-path event queue */
6492 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6493 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
6494 kfree(phba->sli4_hba.fp_eq);
6495 phba->sli4_hba.fp_eq = NULL;
6496
6497 /* Release slow-path event queue */
6498 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6499 phba->sli4_hba.sp_eq = NULL;
6500
6501 return;
6502}
6503
6504/**
6505 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
6506 * @phba: pointer to lpfc hba data structure.
6507 *
6508 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
6509 * operation.
6510 *
6511 * Return codes
af901ca1 6512 * 0 - successful
25985edc 6513 * -ENOMEM - No available memory
d439d286 6514 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 6515 **/
6516int
6517lpfc_sli4_queue_setup(struct lpfc_hba *phba)
6518{
6519 int rc = -ENOMEM;
6520 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6521 int fcp_cq_index = 0;
6522
6523 /*
6524 * Set up Event Queues (EQs)
6525 */
6526
6527 /* Set up slow-path event queue */
6528 if (!phba->sli4_hba.sp_eq) {
6529 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6530 "0520 Slow-path EQ not allocated\n");
6531 goto out_error;
6532 }
6533 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
6534 LPFC_SP_DEF_IMAX);
6535 if (rc) {
6536 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6537 "0521 Failed setup of slow-path EQ: "
6538 "rc = 0x%x\n", rc);
6539 goto out_error;
6540 }
6541 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6542 "2583 Slow-path EQ setup: queue-id=%d\n",
6543 phba->sli4_hba.sp_eq->queue_id);
6544
6545 /* Set up fast-path event queue */
6546 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6547 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
6548 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6549 "0522 Fast-path EQ (%d) not "
6550 "allocated\n", fcp_eqidx);
6551 goto out_destroy_fp_eq;
6552 }
6553 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
6554 phba->cfg_fcp_imax);
6555 if (rc) {
6556 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6557 "0523 Failed setup of fast-path EQ "
6558 "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6559 goto out_destroy_fp_eq;
6560 }
6561 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6562 "2584 Fast-path EQ setup: "
6563 "queue[%d]-id=%d\n", fcp_eqidx,
6564 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
6565 }
6566
6567 /*
6568 * Set up Complete Queues (CQs)
6569 */
6570
6571 /* Set up slow-path MBOX Complete Queue as the first CQ */
6572 if (!phba->sli4_hba.mbx_cq) {
6573 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6574 "0528 Mailbox CQ not allocated\n");
6575 goto out_destroy_fp_eq;
6576 }
6577 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
6578 LPFC_MCQ, LPFC_MBOX);
6579 if (rc) {
6580 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6581 "0529 Failed setup of slow-path mailbox CQ: "
6582 "rc = 0x%x\n", rc);
6583 goto out_destroy_fp_eq;
6584 }
6585 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6586 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6587 phba->sli4_hba.mbx_cq->queue_id,
6588 phba->sli4_hba.sp_eq->queue_id);
6589
6590 /* Set up slow-path ELS Complete Queue */
6591 if (!phba->sli4_hba.els_cq) {
6592 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6593 "0530 ELS CQ not allocated\n");
6594 goto out_destroy_mbx_cq;
6595 }
6596 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
6597 LPFC_WCQ, LPFC_ELS);
6598 if (rc) {
6599 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6600 "0531 Failed setup of slow-path ELS CQ: "
6601 "rc = 0x%x\n", rc);
6602 goto out_destroy_mbx_cq;
6603 }
6604 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6605 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6606 phba->sli4_hba.els_cq->queue_id,
6607 phba->sli4_hba.sp_eq->queue_id);
6608
da0436e9 6609 /* Set up fast-path FCP Response Complete Queue */
0558056c
JS		 6610 fcp_cqidx = 0;
6611 do {
da0436e9
JS		 6612 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6613 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6614 "0526 Fast-path FCP CQ (%d) not "
6615 "allocated\n", fcp_cqidx);
6616 goto out_destroy_fcp_cq;
6617 }
0558056c
JS		 6618 if (phba->cfg_fcp_eq_count)
6619 rc = lpfc_cq_create(phba,
6620 phba->sli4_hba.fcp_cq[fcp_cqidx],
6621 phba->sli4_hba.fp_eq[fcp_cqidx],
6622 LPFC_WCQ, LPFC_FCP);
6623 else
6624 rc = lpfc_cq_create(phba,
6625 phba->sli4_hba.fcp_cq[fcp_cqidx],
6626 phba->sli4_hba.sp_eq,
6627 LPFC_WCQ, LPFC_FCP);
da0436e9
JS		 6628 if (rc) {
6629 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6630 "0527 Failed setup of fast-path FCP "
6631 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6632 goto out_destroy_fcp_cq;
6633 }
6634 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6635 "2588 FCP CQ setup: cq[%d]-id=%d, "
0558056c 6636 "parent %seq[%d]-id=%d\n",
da0436e9
JS		 6637 fcp_cqidx,
6638 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
0558056c 6639 (phba->cfg_fcp_eq_count) ? "" : "sp_",
da0436e9 6640 fcp_cqidx,
0558056c
JS		 6641 (phba->cfg_fcp_eq_count) ?
6642 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id :
6643 phba->sli4_hba.sp_eq->queue_id);
6644 } while (++fcp_cqidx < phba->cfg_fcp_eq_count);
da0436e9
JS		 6645
6646 /*
6647 * Set up all the Work Queues (WQs)
6648 */
6649
6650 /* Set up Mailbox Command Queue */
6651 if (!phba->sli4_hba.mbx_wq) {
6652 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6653 "0538 Slow-path MQ not allocated\n");
6654 goto out_destroy_fcp_cq;
6655 }
6656 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
6657 phba->sli4_hba.mbx_cq, LPFC_MBOX);
6658 if (rc) {
6659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6660 "0539 Failed setup of slow-path MQ: "
6661 "rc = 0x%x\n", rc);
6662 goto out_destroy_fcp_cq;
6663 }
6664 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6665 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6666 phba->sli4_hba.mbx_wq->queue_id,
6667 phba->sli4_hba.mbx_cq->queue_id);
6668
6669 /* Set up slow-path ELS Work Queue */
6670 if (!phba->sli4_hba.els_wq) {
6671 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6672 "0536 Slow-path ELS WQ not allocated\n");
6673 goto out_destroy_mbx_wq;
6674 }
6675 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
6676 phba->sli4_hba.els_cq, LPFC_ELS);
6677 if (rc) {
6678 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6679 "0537 Failed setup of slow-path ELS WQ: "
6680 "rc = 0x%x\n", rc);
6681 goto out_destroy_mbx_wq;
6682 }
6683 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6684 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6685 phba->sli4_hba.els_wq->queue_id,
6686 phba->sli4_hba.els_cq->queue_id);
6687
6688 /* Set up fast-path FCP Work Queue */
6689 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6690 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
6691 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6692 "0534 Fast-path FCP WQ (%d) not "
6693 "allocated\n", fcp_wqidx);
6694 goto out_destroy_fcp_wq;
6695 }
6696 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
6697 phba->sli4_hba.fcp_cq[fcp_cq_index],
6698 LPFC_FCP);
6699 if (rc) {
6700 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6701 "0535 Failed setup of fast-path FCP "
6702 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
6703 goto out_destroy_fcp_wq;
6704 }
6705 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6706 "2591 FCP WQ setup: wq[%d]-id=%d, "
6707 "parent cq[%d]-id=%d\n",
6708 fcp_wqidx,
6709 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
6710 fcp_cq_index,
6711 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
6712 /* Round robin FCP Work Queue's Completion Queue assignment */
0558056c
JS		 6713 if (phba->cfg_fcp_eq_count)
6714 fcp_cq_index = ((fcp_cq_index + 1) %
6715 phba->cfg_fcp_eq_count);
da0436e9
JS		 6716 }
6717
6718 /*
6719 * Create Receive Queue (RQ)
6720 */
6721 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
6722 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6723 "0540 Receive Queue not allocated\n");
6724 goto out_destroy_fcp_wq;
6725 }
6726 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
4d9ab994 6727 phba->sli4_hba.els_cq, LPFC_USOL);
da0436e9
JS		 6728 if (rc) {
6729 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6730 "0541 Failed setup of Receive Queue: "
6731 "rc = 0x%x\n", rc);
6732 goto out_destroy_fcp_wq;
6733 }
6734 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6735 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6736 "parent cq-id=%d\n",
6737 phba->sli4_hba.hdr_rq->queue_id,
6738 phba->sli4_hba.dat_rq->queue_id,
4d9ab994 6739 phba->sli4_hba.els_cq->queue_id);
da0436e9
JS		 6740 return 0;
6741
6742out_destroy_fcp_wq:
6743 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
6744 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6745 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6746out_destroy_mbx_wq:
6747 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6748out_destroy_fcp_cq:
6749 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
6750 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
da0436e9
JS		 6751 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6752out_destroy_mbx_cq:
6753 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6754out_destroy_fp_eq:
6755 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
6756 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6757 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6758out_error:
6759 return rc;
6760}
6761
6762/**
6763 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6764 * @phba: pointer to lpfc hba data structure.
6765 *
6766 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6767 * operation.
6768 *
6769 * Return codes
af901ca1 6770 * 0 - successful
25985edc 6771 * -ENOMEM - No available memory
d439d286 6772 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 6773 **/
6774void
6775lpfc_sli4_queue_unset(struct lpfc_hba *phba)
6776{
6777 int fcp_qidx;
6778
6779 /* Unset mailbox command work queue */
6780 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6781 /* Unset ELS work queue */
6782 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6783 /* Unset unsolicited receive queue */
6784 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
6785 /* Unset FCP work queue */
6786 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6787 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
6788 /* Unset mailbox command complete queue */
6789 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6790 /* Unset ELS complete queue */
6791 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
da0436e9
JS		 6792 /* Unset FCP response complete queue */
6793 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6794 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
6795 /* Unset fast-path event queue */
6796 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6797 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
6798 /* Unset slow-path event queue */
6799 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6800}
6801
6802/**
6803 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6804 * @phba: pointer to lpfc hba data structure.
6805 *
6806 * This routine is invoked to allocate and set up a pool of completion queue
6807 * events. The body of the completion queue event is a completion queue entry
6808 * CQE. For now, this pool is used for the interrupt service routine to queue
6809 * the following HBA completion queue events for the worker thread to process:
6810 * - Mailbox asynchronous events
6811 * - Receive queue completion unsolicited events
6812 * Later, this can be used for all the slow-path events.
6813 *
6814 * Return codes
af901ca1 6815 * 0 - successful
25985edc 6816 * -ENOMEM - No available memory
da0436e9
JS		 6817 **/
6818static int
6819lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
6820{
6821 struct lpfc_cq_event *cq_event;
6822 int i;
6823
6824 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
6825 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
6826 if (!cq_event)
6827 goto out_pool_create_fail;
6828 list_add_tail(&cq_event->list,
6829 &phba->sli4_hba.sp_cqe_event_pool);
6830 }
6831 return 0;
6832
6833out_pool_create_fail:
6834 lpfc_sli4_cq_event_pool_destroy(phba);
6835 return -ENOMEM;
6836}
6837
6838/**
6839 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6840 * @phba: pointer to lpfc hba data structure.
6841 *
6842 * This routine is invoked to free the pool of completion queue events at
6843 * driver unload time. Note that, it is the responsibility of the driver
6844 * cleanup routine to free all the outstanding completion-queue events
6845 * allocated from this pool back into the pool before invoking this routine
6846 * to destroy the pool.
6847 **/
6848static void
6849lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
6850{
6851 struct lpfc_cq_event *cq_event, *next_cq_event;
6852
6853 list_for_each_entry_safe(cq_event, next_cq_event,
6854 &phba->sli4_hba.sp_cqe_event_pool, list) {
6855 list_del(&cq_event->list);
6856 kfree(cq_event);
6857 }
6858}
6859
6860/**
6861 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6862 * @phba: pointer to lpfc hba data structure.
6863 *
6864 * This routine is the lock free version of the API invoked to allocate a
6865 * completion-queue event from the free pool.
6866 *
6867 * Return: Pointer to the newly allocated completion-queue event if successful
6868 * NULL otherwise.
6869 **/
6870struct lpfc_cq_event *
6871__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6872{
6873 struct lpfc_cq_event *cq_event = NULL;
6874
6875 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
6876 struct lpfc_cq_event, list);
6877 return cq_event;
6878}
6879
6880/**
6881 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6882 * @phba: pointer to lpfc hba data structure.
6883 *
6884 * This routine is the lock version of the API invoked to allocate a
6885 * completion-queue event from the free pool.
6886 *
6887 * Return: Pointer to the newly allocated completion-queue event if successful
6888 * NULL otherwise.
6889 **/
6890struct lpfc_cq_event *
6891lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6892{
6893 struct lpfc_cq_event *cq_event;
6894 unsigned long iflags;
6895
6896 spin_lock_irqsave(&phba->hbalock, iflags);
6897 cq_event = __lpfc_sli4_cq_event_alloc(phba);
6898 spin_unlock_irqrestore(&phba->hbalock, iflags);
6899 return cq_event;
6900}
6901
6902/**
6903 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6904 * @phba: pointer to lpfc hba data structure.
6905 * @cq_event: pointer to the completion queue event to be freed.
6906 *
6907 * This routine is the lock free version of the API invoked to release a
6908 * completion-queue event back into the free pool.
6909 **/
6910void
6911__lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6912 struct lpfc_cq_event *cq_event)
6913{
6914 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
6915}
6916
6917/**
6918 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6919 * @phba: pointer to lpfc hba data structure.
6920 * @cq_event: pointer to the completion queue event to be freed.
6921 *
6922 * This routine is the lock version of the API invoked to release a
6923 * completion-queue event back into the free pool.
6924 **/
6925void
6926lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6927 struct lpfc_cq_event *cq_event)
6928{
6929 unsigned long iflags;
6930 spin_lock_irqsave(&phba->hbalock, iflags);
6931 __lpfc_sli4_cq_event_release(phba, cq_event);
6932 spin_unlock_irqrestore(&phba->hbalock, iflags);
6933}
6934
6935/**
6936 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6937 * @phba: pointer to lpfc hba data structure.
6938 *
6939 * This routine is to free all the pending completion-queue events to the
6940 * back into the free pool for device reset.
6941 **/
6942static void
6943lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
6944{
6945 LIST_HEAD(cqelist);
6946 struct lpfc_cq_event *cqe;
6947 unsigned long iflags;
6948
6949 /* Retrieve all the pending WCQEs from pending WCQE lists */
6950 spin_lock_irqsave(&phba->hbalock, iflags);
6951 /* Pending FCP XRI abort events */
6952 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
6953 &cqelist);
6954 /* Pending ELS XRI abort events */
6955 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
6956 &cqelist);
6957 /* Pending asynnc events */
6958 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
6959 &cqelist);
6960 spin_unlock_irqrestore(&phba->hbalock, iflags);
6961
6962 while (!list_empty(&cqelist)) {
6963 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
6964 lpfc_sli4_cq_event_release(phba, cqe);
6965 }
6966}
6967
6968/**
6969 * lpfc_pci_function_reset - Reset pci function.
6970 * @phba: pointer to lpfc hba data structure.
6971 *
6972 * This routine is invoked to request a PCI function reset. It will destroys
6973 * all resources assigned to the PCI function which originates this request.
6974 *
6975 * Return codes
af901ca1 6976 * 0 - successful
25985edc 6977 * -ENOMEM - No available memory
d439d286 6978 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 6979 **/
6980int
6981lpfc_pci_function_reset(struct lpfc_hba *phba)
6982{
6983 LPFC_MBOXQ_t *mboxq;
2fcee4bf 6984 uint32_t rc = 0, if_type;
da0436e9 6985 uint32_t shdr_status, shdr_add_status;
2fcee4bf 6986 uint32_t rdy_chk, num_resets = 0, reset_again = 0;
da0436e9 6987 union lpfc_sli4_cfg_shdr *shdr;
2fcee4bf 6988 struct lpfc_register reg_data;
da0436e9 6989
2fcee4bf
JS		 6990 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6991 switch (if_type) {
6992 case LPFC_SLI_INTF_IF_TYPE_0:
6993 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6994 GFP_KERNEL);
6995 if (!mboxq) {
6996 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6997 "0494 Unable to allocate memory for "
6998 "issuing SLI_FUNCTION_RESET mailbox "
6999 "command\n");
7000 return -ENOMEM;
7001 }
da0436e9 7002
2fcee4bf
JS		 7003 /* Setup PCI function reset mailbox-ioctl command */
7004 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7005 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
7006 LPFC_SLI4_MBX_EMBED);
7007 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7008 shdr = (union lpfc_sli4_cfg_shdr *)
7009 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7010 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7011 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7012 &shdr->response);
7013 if (rc != MBX_TIMEOUT)
7014 mempool_free(mboxq, phba->mbox_mem_pool);
7015 if (shdr_status || shdr_add_status || rc) {
7016 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7017 "0495 SLI_FUNCTION_RESET mailbox "
7018 "failed with status x%x add_status x%x,"
7019 " mbx status x%x\n",
7020 shdr_status, shdr_add_status, rc);
7021 rc = -ENXIO;
7022 }
7023 break;
7024 case LPFC_SLI_INTF_IF_TYPE_2:
7025 for (num_resets = 0;
7026 num_resets < MAX_IF_TYPE_2_RESETS;
7027 num_resets++) {
7028 reg_data.word0 = 0;
7029 bf_set(lpfc_sliport_ctrl_end, &reg_data,
7030 LPFC_SLIPORT_LITTLE_ENDIAN);
7031 bf_set(lpfc_sliport_ctrl_ip, &reg_data,
7032 LPFC_SLIPORT_INIT_PORT);
7033 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
7034 CTRLregaddr);
7035
7036 /*
7037 * Poll the Port Status Register and wait for RDY for
7038 * up to 10 seconds. If the port doesn't respond, treat
7039 * it as an error. If the port responds with RN, start
7040 * the loop again.
7041 */
7042 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
9940b97b
JS		 7043 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7044 STATUSregaddr, &reg_data.word0)) {
7045 rc = -ENODEV;
7046 break;
7047 }
2fcee4bf
JS		 7048 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
7049 break;
7050 if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
7051 reset_again++;
7052 break;
7053 }
7054 msleep(10);
7055 }
7056
7057 /*
7058 * If the port responds to the init request with
7059 * reset needed, delay for a bit and restart the loop.
7060 */
7061 if (reset_again) {
7062 msleep(10);
7063 reset_again = 0;
7064 continue;
7065 }
7066
7067 /* Detect any port errors. */
9940b97b
JS		 7068 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7069 &reg_data.word0)) {
7070 rc = -ENODEV;
7071 break;
7072 }
2fcee4bf
JS		 7073 if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
7074 (rdy_chk >= 1000)) {
7075 phba->work_status[0] = readl(
7076 phba->sli4_hba.u.if_type2.ERR1regaddr);
7077 phba->work_status[1] = readl(
7078 phba->sli4_hba.u.if_type2.ERR2regaddr);
7079 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7080 "2890 Port Error Detected "
7081 "during Port Reset: "
7082 "port status reg 0x%x, "
7083 "error 1=0x%x, error 2=0x%x\n",
7084 reg_data.word0,
7085 phba->work_status[0],
7086 phba->work_status[1]);
7087 rc = -ENODEV;
7088 }
7089
7090 /*
7091 * Terminate the outer loop provided the Port indicated
7092 * ready within 10 seconds.
7093 */
7094 if (rdy_chk < 1000)
7095 break;
7096 }
0558056c
JS		 7097 /* delay driver action following IF_TYPE_2 function reset */
7098 msleep(100);
2fcee4bf
JS		 7099 break;
7100 case LPFC_SLI_INTF_IF_TYPE_1:
7101 default:
7102 break;
da0436e9 7103 }
2fcee4bf
JS		 7104
7105 /* Catch the not-ready port failure after a port reset. */
7106 if (num_resets >= MAX_IF_TYPE_2_RESETS)
7107 rc = -ENODEV;
7108
da0436e9
JS		 7109 return rc;
7110}
7111
7112/**
7113 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
7114 * @phba: pointer to lpfc hba data structure.
7115 * @cnt: number of nop mailbox commands to send.
7116 *
7117 * This routine is invoked to send a number @cnt of NOP mailbox command and
7118 * wait for each command to complete.
7119 *
7120 * Return: the number of NOP mailbox command completed.
7121 **/
7122static int
7123lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
7124{
7125 LPFC_MBOXQ_t *mboxq;
7126 int length, cmdsent;
7127 uint32_t mbox_tmo;
7128 uint32_t rc = 0;
7129 uint32_t shdr_status, shdr_add_status;
7130 union lpfc_sli4_cfg_shdr *shdr;
7131
7132 if (cnt == 0) {
7133 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7134 "2518 Requested to send 0 NOP mailbox cmd\n");
7135 return cnt;
7136 }
7137
7138 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7139 if (!mboxq) {
7140 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7141 "2519 Unable to allocate memory for issuing "
7142 "NOP mailbox command\n");
7143 return 0;
7144 }
7145
7146 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
7147 length = (sizeof(struct lpfc_mbx_nop) -
7148 sizeof(struct lpfc_sli4_cfg_mhdr));
7149 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7150 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
7151
7152 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
7153 for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
7154 if (!phba->sli4_hba.intr_enable)
7155 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7156 else
7157 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7158 if (rc == MBX_TIMEOUT)
7159 break;
7160 /* Check return status */
7161 shdr = (union lpfc_sli4_cfg_shdr *)
7162 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7163 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7164 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7165 &shdr->response);
7166 if (shdr_status || shdr_add_status || rc) {
7167 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7168 "2520 NOP mailbox command failed "
7169 "status x%x add_status x%x mbx "
7170 "status x%x\n", shdr_status,
7171 shdr_add_status, rc);
7172 break;
7173 }
7174 }
7175
7176 if (rc != MBX_TIMEOUT)
7177 mempool_free(mboxq, phba->mbox_mem_pool);
7178
7179 return cmdsent;
7180}
7181
da0436e9
JS		 7182/**
7183 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7184 * @phba: pointer to lpfc hba data structure.
7185 *
7186 * This routine is invoked to set up the PCI device memory space for device
7187 * with SLI-4 interface spec.
7188 *
7189 * Return codes
af901ca1 7190 * 0 - successful
da0436e9
JS		 7191 * other values - error
7192 **/
7193static int
7194lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
7195{
7196 struct pci_dev *pdev;
7197 unsigned long bar0map_len, bar1map_len, bar2map_len;
7198 int error = -ENODEV;
2fcee4bf 7199 uint32_t if_type;
da0436e9
JS		 7200
7201 /* Obtain PCI device reference */
7202 if (!phba->pcidev)
7203 return error;
7204 else
7205 pdev = phba->pcidev;
7206
7207 /* Set the device DMA mask size */
8e68597d
MR		 7208 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7209 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7210 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7211 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
da0436e9 7212 return error;
8e68597d
MR		 7213 }
7214 }
da0436e9 7215
2fcee4bf
JS		 7216 /*
7217 * The BARs and register set definitions and offset locations are
7218 * dependent on the if_type.
7219 */
7220 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7221 &phba->sli4_hba.sli_intf.word0)) {
7222 return error;
7223 }
7224
7225 /* There is no SLI3 failback for SLI4 devices. */
7226 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7227 LPFC_SLI_INTF_VALID) {
7228 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7229 "2894 SLI_INTF reg contents invalid "
7230 "sli_intf reg 0x%x\n",
7231 phba->sli4_hba.sli_intf.word0);
7232 return error;
7233 }
7234
7235 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7236 /*
7237 * Get the bus address of SLI4 device Bar regions and the
7238 * number of bytes required by each mapping. The mapping of the
7239 * particular PCI BARs regions is dependent on the type of
7240 * SLI4 device.
da0436e9 7241 */
1dfb5a47
JS		 7242 if (pci_resource_start(pdev, 0)) {
7243 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7244 bar0map_len = pci_resource_len(pdev, 0);
2fcee4bf
JS		 7245
7246 /*
7247 * Map SLI4 PCI Config Space Register base to a kernel virtual
7248 * addr
7249 */
7250 phba->sli4_hba.conf_regs_memmap_p =
7251 ioremap(phba->pci_bar0_map, bar0map_len);
7252 if (!phba->sli4_hba.conf_regs_memmap_p) {
7253 dev_printk(KERN_ERR, &pdev->dev,
7254 "ioremap failed for SLI4 PCI config "
7255 "registers.\n");
7256 goto out;
7257 }
7258 /* Set up BAR0 PCI config space register memory map */
7259 lpfc_sli4_bar0_register_memmap(phba, if_type);
1dfb5a47
JS		 7260 } else {
7261 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7262 bar0map_len = pci_resource_len(pdev, 1);
2fcee4bf
JS		 7263 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7264 dev_printk(KERN_ERR, &pdev->dev,
7265 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7266 goto out;
7267 }
7268 phba->sli4_hba.conf_regs_memmap_p =
da0436e9 7269 ioremap(phba->pci_bar0_map, bar0map_len);
2fcee4bf
JS		 7270 if (!phba->sli4_hba.conf_regs_memmap_p) {
7271 dev_printk(KERN_ERR, &pdev->dev,
7272 "ioremap failed for SLI4 PCI config "
7273 "registers.\n");
7274 goto out;
7275 }
7276 lpfc_sli4_bar0_register_memmap(phba, if_type);
da0436e9
JS		 7277 }
7278
c31098ce
JS		 7279 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7280 (pci_resource_start(pdev, 2))) {
2fcee4bf
JS		 7281 /*
7282 * Map SLI4 if type 0 HBA Control Register base to a kernel
7283 * virtual address and setup the registers.
7284 */
7285 phba->pci_bar1_map = pci_resource_start(pdev, 2);
7286 bar1map_len = pci_resource_len(pdev, 2);
7287 phba->sli4_hba.ctrl_regs_memmap_p =
da0436e9 7288 ioremap(phba->pci_bar1_map, bar1map_len);
2fcee4bf
JS		 7289 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7290 dev_printk(KERN_ERR, &pdev->dev,
da0436e9 7291 "ioremap failed for SLI4 HBA control registers.\n");
2fcee4bf
JS		 7292 goto out_iounmap_conf;
7293 }
7294 lpfc_sli4_bar1_register_memmap(phba);
da0436e9
JS		 7295 }
7296
c31098ce
JS		 7297 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7298 (pci_resource_start(pdev, 4))) {
2fcee4bf
JS		 7299 /*
7300 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7301 * virtual address and setup the registers.
7302 */
7303 phba->pci_bar2_map = pci_resource_start(pdev, 4);
7304 bar2map_len = pci_resource_len(pdev, 4);
7305 phba->sli4_hba.drbl_regs_memmap_p =
da0436e9 7306 ioremap(phba->pci_bar2_map, bar2map_len);
2fcee4bf
JS		 7307 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7308 dev_printk(KERN_ERR, &pdev->dev,
da0436e9 7309 "ioremap failed for SLI4 HBA doorbell registers.\n");
2fcee4bf
JS		 7310 goto out_iounmap_ctrl;
7311 }
7312 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7313 if (error)
7314 goto out_iounmap_all;
da0436e9
JS		 7315 }
7316
da0436e9
JS		 7317 return 0;
7318
7319out_iounmap_all:
7320 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7321out_iounmap_ctrl:
7322 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7323out_iounmap_conf:
7324 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7325out:
7326 return error;
7327}
7328
7329/**
7330 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7331 * @phba: pointer to lpfc hba data structure.
7332 *
7333 * This routine is invoked to unset the PCI device memory space for device
7334 * with SLI-4 interface spec.
7335 **/
7336static void
7337lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
7338{
7339 struct pci_dev *pdev;
7340
7341 /* Obtain PCI device reference */
7342 if (!phba->pcidev)
7343 return;
7344 else
7345 pdev = phba->pcidev;
7346
7347 /* Free coherent DMA memory allocated */
7348
7349 /* Unmap I/O memory space */
7350 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7351 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7352 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7353
7354 return;
7355}
7356
7357/**
7358 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7359 * @phba: pointer to lpfc hba data structure.
7360 *
7361 * This routine is invoked to enable the MSI-X interrupt vectors to device
7362 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7363 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7364 * invoked, enables either all or nothing, depending on the current
7365 * availability of PCI vector resources. The device driver is responsible
7366 * for calling the individual request_irq() to register each MSI-X vector
7367 * with a interrupt handler, which is done in this function. Note that
7368 * later when device is unloading, the driver should always call free_irq()
7369 * on all MSI-X vectors it has done request_irq() on before calling
7370 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7371 * will be left with MSI-X enabled and leaks its vectors.
7372 *
7373 * Return codes
af901ca1 7374 * 0 - successful
da0436e9
JS		 7375 * other values - error
7376 **/
7377static int
7378lpfc_sli_enable_msix(struct lpfc_hba *phba)
7379{
7380 int rc, i;
7381 LPFC_MBOXQ_t *pmb;
7382
7383 /* Set up MSI-X multi-message vectors */
7384 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7385 phba->msix_entries[i].entry = i;
7386
7387 /* Configure MSI-X capability structure */
7388 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
7389 ARRAY_SIZE(phba->msix_entries));
7390 if (rc) {
7391 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7392 "0420 PCI enable MSI-X failed (%d)\n", rc);
7393 goto msi_fail_out;
7394 }
7395 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7396 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7397 "0477 MSI-X entry[%d]: vector=x%x "
7398 "message=%d\n", i,
7399 phba->msix_entries[i].vector,
7400 phba->msix_entries[i].entry);
7401 /*
7402 * Assign MSI-X vectors to interrupt handlers
7403 */
7404
7405 /* vector-0 is associated to slow-path handler */
7406 rc = request_irq(phba->msix_entries[0].vector,
7407 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
7408 LPFC_SP_DRIVER_HANDLER_NAME, phba);
7409 if (rc) {
7410 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7411 "0421 MSI-X slow-path request_irq failed "
7412 "(%d)\n", rc);
7413 goto msi_fail_out;
7414 }
7415
7416 /* vector-1 is associated to fast-path handler */
7417 rc = request_irq(phba->msix_entries[1].vector,
7418 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
7419 LPFC_FP_DRIVER_HANDLER_NAME, phba);
7420
7421 if (rc) {
7422 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7423 "0429 MSI-X fast-path request_irq failed "
7424 "(%d)\n", rc);
7425 goto irq_fail_out;
7426 }
7427
7428 /*
7429 * Configure HBA MSI-X attention conditions to messages
7430 */
7431 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7432
7433 if (!pmb) {
7434 rc = -ENOMEM;
7435 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7436 "0474 Unable to allocate memory for issuing "
7437 "MBOX_CONFIG_MSI command\n");
7438 goto mem_fail_out;
7439 }
7440 rc = lpfc_config_msi(phba, pmb);
7441 if (rc)
7442 goto mbx_fail_out;
7443 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7444 if (rc != MBX_SUCCESS) {
7445 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
7446 "0351 Config MSI mailbox command failed, "
7447 "mbxCmd x%x, mbxStatus x%x\n",
7448 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
7449 goto mbx_fail_out;
7450 }
7451
7452 /* Free memory allocated for mailbox command */
7453 mempool_free(pmb, phba->mbox_mem_pool);
7454 return rc;
7455
7456mbx_fail_out:
7457 /* Free memory allocated for mailbox command */
7458 mempool_free(pmb, phba->mbox_mem_pool);
7459
7460mem_fail_out:
7461 /* free the irq already requested */
7462 free_irq(phba->msix_entries[1].vector, phba);
7463
7464irq_fail_out:
7465 /* free the irq already requested */
7466 free_irq(phba->msix_entries[0].vector, phba);
7467
7468msi_fail_out:
7469 /* Unconfigure MSI-X capability structure */
7470 pci_disable_msix(phba->pcidev);
7471 return rc;
7472}
7473
7474/**
7475 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
7476 * @phba: pointer to lpfc hba data structure.
7477 *
7478 * This routine is invoked to release the MSI-X vectors and then disable the
7479 * MSI-X interrupt mode to device with SLI-3 interface spec.
7480 **/
7481static void
7482lpfc_sli_disable_msix(struct lpfc_hba *phba)
7483{
7484 int i;
7485
7486 /* Free up MSI-X multi-message vectors */
7487 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7488 free_irq(phba->msix_entries[i].vector, phba);
7489 /* Disable MSI-X */
7490 pci_disable_msix(phba->pcidev);
7491
7492 return;
7493}
7494
7495/**
7496 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
7497 * @phba: pointer to lpfc hba data structure.
7498 *
7499 * This routine is invoked to enable the MSI interrupt mode to device with
7500 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
7501 * enable the MSI vector. The device driver is responsible for calling the
7502 * request_irq() to register MSI vector with a interrupt the handler, which
7503 * is done in this function.
7504 *
7505 * Return codes
af901ca1 7506 * 0 - successful
da0436e9
JS		 7507 * other values - error
7508 */
7509static int
7510lpfc_sli_enable_msi(struct lpfc_hba *phba)
7511{
7512 int rc;
7513
7514 rc = pci_enable_msi(phba->pcidev);
7515 if (!rc)
7516 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7517 "0462 PCI enable MSI mode success.\n");
7518 else {
7519 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7520 "0471 PCI enable MSI mode failed (%d)\n", rc);
7521 return rc;
7522 }
7523
7524 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7525 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7526 if (rc) {
7527 pci_disable_msi(phba->pcidev);
7528 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7529 "0478 MSI request_irq failed (%d)\n", rc);
7530 }
7531 return rc;
7532}
7533
7534/**
7535 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
7536 * @phba: pointer to lpfc hba data structure.
7537 *
7538 * This routine is invoked to disable the MSI interrupt mode to device with
7539 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
7540 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7541 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7542 * its vector.
7543 */
7544static void
7545lpfc_sli_disable_msi(struct lpfc_hba *phba)
7546{
7547 free_irq(phba->pcidev->irq, phba);
7548 pci_disable_msi(phba->pcidev);
7549 return;
7550}
7551
7552/**
7553 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
7554 * @phba: pointer to lpfc hba data structure.
7555 *
7556 * This routine is invoked to enable device interrupt and associate driver's
7557 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
7558 * spec. Depends on the interrupt mode configured to the driver, the driver
7559 * will try to fallback from the configured interrupt mode to an interrupt
7560 * mode which is supported by the platform, kernel, and device in the order
7561 * of:
7562 * MSI-X -> MSI -> IRQ.
7563 *
7564 * Return codes
af901ca1 7565 * 0 - successful
da0436e9
JS		 7566 * other values - error
7567 **/
7568static uint32_t
7569lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7570{
7571 uint32_t intr_mode = LPFC_INTR_ERROR;
7572 int retval;
7573
7574 if (cfg_mode == 2) {
7575 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
7576 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
7577 if (!retval) {
7578 /* Now, try to enable MSI-X interrupt mode */
7579 retval = lpfc_sli_enable_msix(phba);
7580 if (!retval) {
7581 /* Indicate initialization to MSI-X mode */
7582 phba->intr_type = MSIX;
7583 intr_mode = 2;
7584 }
7585 }
7586 }
7587
7588 /* Fallback to MSI if MSI-X initialization failed */
7589 if (cfg_mode >= 1 && phba->intr_type == NONE) {
7590 retval = lpfc_sli_enable_msi(phba);
7591 if (!retval) {
7592 /* Indicate initialization to MSI mode */
7593 phba->intr_type = MSI;
7594 intr_mode = 1;
7595 }
7596 }
7597
7598 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7599 if (phba->intr_type == NONE) {
7600 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7601 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7602 if (!retval) {
7603 /* Indicate initialization to INTx mode */
7604 phba->intr_type = INTx;
7605 intr_mode = 0;
7606 }
7607 }
7608 return intr_mode;
7609}
7610
7611/**
7612 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
7613 * @phba: pointer to lpfc hba data structure.
7614 *
7615 * This routine is invoked to disable device interrupt and disassociate the
7616 * driver's interrupt handler(s) from interrupt vector(s) to device with
7617 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
7618 * release the interrupt vector(s) for the message signaled interrupt.
7619 **/
7620static void
7621lpfc_sli_disable_intr(struct lpfc_hba *phba)
7622{
7623 /* Disable the currently initialized interrupt mode */
7624 if (phba->intr_type == MSIX)
7625 lpfc_sli_disable_msix(phba);
7626 else if (phba->intr_type == MSI)
7627 lpfc_sli_disable_msi(phba);
7628 else if (phba->intr_type == INTx)
7629 free_irq(phba->pcidev->irq, phba);
7630
7631 /* Reset interrupt management states */
7632 phba->intr_type = NONE;
7633 phba->sli.slistat.sli_intr = 0;
7634
7635 return;
7636}
7637
7638/**
7639 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
7640 * @phba: pointer to lpfc hba data structure.
7641 *
7642 * This routine is invoked to enable the MSI-X interrupt vectors to device
7643 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
7644 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
7645 * enables either all or nothing, depending on the current availability of
7646 * PCI vector resources. The device driver is responsible for calling the
7647 * individual request_irq() to register each MSI-X vector with a interrupt
7648 * handler, which is done in this function. Note that later when device is
7649 * unloading, the driver should always call free_irq() on all MSI-X vectors
7650 * it has done request_irq() on before calling pci_disable_msix(). Failure
7651 * to do so results in a BUG_ON() and a device will be left with MSI-X
7652 * enabled and leaks its vectors.
7653 *
7654 * Return codes
af901ca1 7655 * 0 - successful
da0436e9
JS		 7656 * other values - error
7657 **/
7658static int
7659lpfc_sli4_enable_msix(struct lpfc_hba *phba)
7660{
75baf696 7661 int vectors, rc, index;
da0436e9
JS		 7662
7663 /* Set up MSI-X multi-message vectors */
7664 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
7665 phba->sli4_hba.msix_entries[index].entry = index;
7666
7667 /* Configure MSI-X capability structure */
75baf696
JS		 7668 vectors = phba->sli4_hba.cfg_eqn;
7669enable_msix_vectors:
da0436e9 7670 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
75baf696
JS		 7671 vectors);
7672 if (rc > 1) {
7673 vectors = rc;
7674 goto enable_msix_vectors;
7675 } else if (rc) {
da0436e9
JS		 7676 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7677 "0484 PCI enable MSI-X failed (%d)\n", rc);
7678 goto msi_fail_out;
7679 }
75baf696 7680
da0436e9 7681 /* Log MSI-X vector assignment */
75baf696 7682 for (index = 0; index < vectors; index++)
da0436e9
JS		 7683 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7684 "0489 MSI-X entry[%d]: vector=x%x "
7685 "message=%d\n", index,
7686 phba->sli4_hba.msix_entries[index].vector,
7687 phba->sli4_hba.msix_entries[index].entry);
7688 /*
7689 * Assign MSI-X vectors to interrupt handlers
7690 */
0558056c
JS		 7691 if (vectors > 1)
7692 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7693 &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
7694 LPFC_SP_DRIVER_HANDLER_NAME, phba);
7695 else
7696 /* All Interrupts need to be handled by one EQ */
7697 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7698 &lpfc_sli4_intr_handler, IRQF_SHARED,
7699 LPFC_DRIVER_NAME, phba);
da0436e9
JS		 7700 if (rc) {
7701 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7702 "0485 MSI-X slow-path request_irq failed "
7703 "(%d)\n", rc);
7704 goto msi_fail_out;
7705 }
7706
7707 /* The rest of the vector(s) are associated to fast-path handler(s) */
75baf696 7708 for (index = 1; index < vectors; index++) {
da0436e9
JS		 7709 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
7710 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
7711 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
7712 &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
7713 LPFC_FP_DRIVER_HANDLER_NAME,
7714 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7715 if (rc) {
7716 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7717 "0486 MSI-X fast-path (%d) "
7718 "request_irq failed (%d)\n", index, rc);
7719 goto cfg_fail_out;
7720 }
7721 }
75baf696 7722 phba->sli4_hba.msix_vec_nr = vectors;
da0436e9
JS		 7723
7724 return rc;
7725
7726cfg_fail_out:
7727 /* free the irq already requested */
7728 for (--index; index >= 1; index--)
7729 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
7730 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7731
7732 /* free the irq already requested */
7733 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7734
7735msi_fail_out:
7736 /* Unconfigure MSI-X capability structure */
7737 pci_disable_msix(phba->pcidev);
7738 return rc;
7739}
7740
7741/**
7742 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7743 * @phba: pointer to lpfc hba data structure.
7744 *
7745 * This routine is invoked to release the MSI-X vectors and then disable the
7746 * MSI-X interrupt mode to device with SLI-4 interface spec.
7747 **/
7748static void
7749lpfc_sli4_disable_msix(struct lpfc_hba *phba)
7750{
7751 int index;
7752
7753 /* Free up MSI-X multi-message vectors */
7754 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7755
75baf696 7756 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
da0436e9
JS		 7757 free_irq(phba->sli4_hba.msix_entries[index].vector,
7758 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
75baf696 7759
da0436e9
JS		 7760 /* Disable MSI-X */
7761 pci_disable_msix(phba->pcidev);
7762
7763 return;
7764}
7765
7766/**
7767 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7768 * @phba: pointer to lpfc hba data structure.
7769 *
7770 * This routine is invoked to enable the MSI interrupt mode to device with
7771 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7772 * to enable the MSI vector. The device driver is responsible for calling
7773 * the request_irq() to register MSI vector with a interrupt the handler,
7774 * which is done in this function.
7775 *
7776 * Return codes
af901ca1 7777 * 0 - successful
da0436e9
JS		 7778 * other values - error
7779 **/
7780static int
7781lpfc_sli4_enable_msi(struct lpfc_hba *phba)
7782{
7783 int rc, index;
7784
7785 rc = pci_enable_msi(phba->pcidev);
7786 if (!rc)
7787 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7788 "0487 PCI enable MSI mode success.\n");
7789 else {
7790 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7791 "0488 PCI enable MSI mode failed (%d)\n", rc);
7792 return rc;
7793 }
7794
7795 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7796 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7797 if (rc) {
7798 pci_disable_msi(phba->pcidev);
7799 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7800 "0490 MSI request_irq failed (%d)\n", rc);
75baf696 7801 return rc;
da0436e9
JS		 7802 }
7803
7804 for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
7805 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7806 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7807 }
7808
75baf696 7809 return 0;
da0436e9
JS		 7810}
7811
7812/**
7813 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7814 * @phba: pointer to lpfc hba data structure.
7815 *
7816 * This routine is invoked to disable the MSI interrupt mode to device with
7817 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7818 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7819 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7820 * its vector.
7821 **/
7822static void
7823lpfc_sli4_disable_msi(struct lpfc_hba *phba)
7824{
7825 free_irq(phba->pcidev->irq, phba);
7826 pci_disable_msi(phba->pcidev);
7827 return;
7828}
7829
7830/**
7831 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7832 * @phba: pointer to lpfc hba data structure.
7833 *
7834 * This routine is invoked to enable device interrupt and associate driver's
7835 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7836 * interface spec. Depends on the interrupt mode configured to the driver,
7837 * the driver will try to fallback from the configured interrupt mode to an
7838 * interrupt mode which is supported by the platform, kernel, and device in
7839 * the order of:
7840 * MSI-X -> MSI -> IRQ.
7841 *
7842 * Return codes
af901ca1 7843 * 0 - successful
da0436e9
JS		 7844 * other values - error
7845 **/
7846static uint32_t
7847lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7848{
7849 uint32_t intr_mode = LPFC_INTR_ERROR;
7850 int retval, index;
7851
7852 if (cfg_mode == 2) {
7853 /* Preparation before conf_msi mbox cmd */
7854 retval = 0;
7855 if (!retval) {
7856 /* Now, try to enable MSI-X interrupt mode */
7857 retval = lpfc_sli4_enable_msix(phba);
7858 if (!retval) {
7859 /* Indicate initialization to MSI-X mode */
7860 phba->intr_type = MSIX;
7861 intr_mode = 2;
7862 }
7863 }
7864 }
7865
7866 /* Fallback to MSI if MSI-X initialization failed */
7867 if (cfg_mode >= 1 && phba->intr_type == NONE) {
7868 retval = lpfc_sli4_enable_msi(phba);
7869 if (!retval) {
7870 /* Indicate initialization to MSI mode */
7871 phba->intr_type = MSI;
7872 intr_mode = 1;
7873 }
7874 }
7875
7876 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7877 if (phba->intr_type == NONE) {
7878 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7879 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7880 if (!retval) {
7881 /* Indicate initialization to INTx mode */
7882 phba->intr_type = INTx;
7883 intr_mode = 0;
7884 for (index = 0; index < phba->cfg_fcp_eq_count;
7885 index++) {
7886 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7887 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7888 }
7889 }
7890 }
7891 return intr_mode;
7892}
7893
7894/**
7895 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7896 * @phba: pointer to lpfc hba data structure.
7897 *
7898 * This routine is invoked to disable device interrupt and disassociate
7899 * the driver's interrupt handler(s) from interrupt vector(s) to device
7900 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7901 * will release the interrupt vector(s) for the message signaled interrupt.
7902 **/
7903static void
7904lpfc_sli4_disable_intr(struct lpfc_hba *phba)
7905{
7906 /* Disable the currently initialized interrupt mode */
7907 if (phba->intr_type == MSIX)
7908 lpfc_sli4_disable_msix(phba);
7909 else if (phba->intr_type == MSI)
7910 lpfc_sli4_disable_msi(phba);
7911 else if (phba->intr_type == INTx)
7912 free_irq(phba->pcidev->irq, phba);
7913
7914 /* Reset interrupt management states */
7915 phba->intr_type = NONE;
7916 phba->sli.slistat.sli_intr = 0;
7917
7918 return;
7919}
7920
7921/**
7922 * lpfc_unset_hba - Unset SLI3 hba device initialization
7923 * @phba: pointer to lpfc hba data structure.
7924 *
7925 * This routine is invoked to unset the HBA device initialization steps to
7926 * a device with SLI-3 interface spec.
7927 **/
7928static void
7929lpfc_unset_hba(struct lpfc_hba *phba)
7930{
7931 struct lpfc_vport *vport = phba->pport;
7932 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7933
7934 spin_lock_irq(shost->host_lock);
7935 vport->load_flag |= FC_UNLOADING;
7936 spin_unlock_irq(shost->host_lock);
7937
7938 lpfc_stop_hba_timers(phba);
7939
7940 phba->pport->work_port_events = 0;
7941
7942 lpfc_sli_hba_down(phba);
7943
7944 lpfc_sli_brdrestart(phba);
7945
7946 lpfc_sli_disable_intr(phba);
7947
7948 return;
7949}
7950
7951/**
7952 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7953 * @phba: pointer to lpfc hba data structure.
7954 *
7955 * This routine is invoked to unset the HBA device initialization steps to
7956 * a device with SLI-4 interface spec.
7957 **/
7958static void
7959lpfc_sli4_unset_hba(struct lpfc_hba *phba)
7960{
7961 struct lpfc_vport *vport = phba->pport;
7962 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7963
7964 spin_lock_irq(shost->host_lock);
7965 vport->load_flag |= FC_UNLOADING;
7966 spin_unlock_irq(shost->host_lock);
7967
7968 phba->pport->work_port_events = 0;
7969
3677a3a7
JS		 7970 /* Stop the SLI4 device port */
7971 lpfc_stop_port(phba);
da0436e9
JS		 7972
7973 lpfc_sli4_disable_intr(phba);
7974
3677a3a7
JS		 7975 /* Reset SLI4 HBA FCoE function */
7976 lpfc_pci_function_reset(phba);
7977
da0436e9
JS		 7978 return;
7979}
7980
5af5eee7
JS		 7981/**
7982 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
7983 * @phba: Pointer to HBA context object.
7984 *
7985 * This function is called in the SLI4 code path to wait for completion
7986 * of device's XRIs exchange busy. It will check the XRI exchange busy
7987 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
7988 * that, it will check the XRI exchange busy on outstanding FCP and ELS
7989 * I/Os every 30 seconds, log error message, and wait forever. Only when
7990 * all XRI exchange busy complete, the driver unload shall proceed with
7991 * invoking the function reset ioctl mailbox command to the CNA and the
7992 * the rest of the driver unload resource release.
7993 **/
7994static void
7995lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
7996{
7997 int wait_time = 0;
7998 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
7999 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8000
8001 while (!fcp_xri_cmpl || !els_xri_cmpl) {
8002 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
8003 if (!fcp_xri_cmpl)
8004 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8005 "2877 FCP XRI exchange busy "
8006 "wait time: %d seconds.\n",
8007 wait_time/1000);
8008 if (!els_xri_cmpl)
8009 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8010 "2878 ELS XRI exchange busy "
8011 "wait time: %d seconds.\n",
8012 wait_time/1000);
8013 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
8014 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
8015 } else {
8016 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
8017 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
8018 }
8019 fcp_xri_cmpl =
8020 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8021 els_xri_cmpl =
8022 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8023 }
8024}
8025
da0436e9
JS		 8026/**
8027 * lpfc_sli4_hba_unset - Unset the fcoe hba
8028 * @phba: Pointer to HBA context object.
8029 *
8030 * This function is called in the SLI4 code path to reset the HBA's FCoE
8031 * function. The caller is not required to hold any lock. This routine
8032 * issues PCI function reset mailbox command to reset the FCoE function.
8033 * At the end of the function, it calls lpfc_hba_down_post function to
8034 * free any pending commands.
8035 **/
8036static void
8037lpfc_sli4_hba_unset(struct lpfc_hba *phba)
8038{
8039 int wait_cnt = 0;
8040 LPFC_MBOXQ_t *mboxq;
912e3acd 8041 struct pci_dev *pdev = phba->pcidev;
da0436e9
JS		 8042
8043 lpfc_stop_hba_timers(phba);
8044 phba->sli4_hba.intr_enable = 0;
8045
8046 /*
8047 * Gracefully wait out the potential current outstanding asynchronous
8048 * mailbox command.
8049 */
8050
8051 /* First, block any pending async mailbox command from posted */
8052 spin_lock_irq(&phba->hbalock);
8053 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8054 spin_unlock_irq(&phba->hbalock);
8055 /* Now, trying to wait it out if we can */
8056 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8057 msleep(10);
8058 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
8059 break;
8060 }
8061 /* Forcefully release the outstanding mailbox command if timed out */
8062 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8063 spin_lock_irq(&phba->hbalock);
8064 mboxq = phba->sli.mbox_active;
8065 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8066 __lpfc_mbox_cmpl_put(phba, mboxq);
8067 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8068 phba->sli.mbox_active = NULL;
8069 spin_unlock_irq(&phba->hbalock);
8070 }
8071
5af5eee7
JS		 8072 /* Abort all iocbs associated with the hba */
8073 lpfc_sli_hba_iocb_abort(phba);
8074
8075 /* Wait for completion of device XRI exchange busy */
8076 lpfc_sli4_xri_exchange_busy_wait(phba);
8077
da0436e9
JS		 8078 /* Disable PCI subsystem interrupt */
8079 lpfc_sli4_disable_intr(phba);
8080
912e3acd
JS		 8081 /* Disable SR-IOV if enabled */
8082 if (phba->cfg_sriov_nr_virtfn)
8083 pci_disable_sriov(pdev);
8084
da0436e9
JS		 8085 /* Stop kthread signal shall trigger work_done one more time */
8086 kthread_stop(phba->worker_thread);
8087
3677a3a7
JS		 8088 /* Reset SLI4 HBA FCoE function */
8089 lpfc_pci_function_reset(phba);
8090
da0436e9
JS		 8091 /* Stop the SLI4 device port */
8092 phba->pport->work_port_events = 0;
8093}
8094
28baac74
JS		 8095 /**
8096 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
8097 * @phba: Pointer to HBA context object.
8098 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8099 *
8100 * This function is called in the SLI4 code path to read the port's
8101 * sli4 capabilities.
8102 *
8103 * This function may be be called from any context that can block-wait
8104 * for the completion. The expectation is that this routine is called
8105 * typically from probe_one or from the online routine.
8106 **/
8107int
8108lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8109{
8110 int rc;
8111 struct lpfc_mqe *mqe;
8112 struct lpfc_pc_sli4_params *sli4_params;
8113 uint32_t mbox_tmo;
8114
8115 rc = 0;
8116 mqe = &mboxq->u.mqe;
8117
8118 /* Read the port's SLI4 Parameters port capabilities */
fedd3b7b 8119 lpfc_pc_sli4_params(mboxq);
28baac74
JS		 8120 if (!phba->sli4_hba.intr_enable)
8121 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8122 else {
8123 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES);
8124 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8125 }
8126
8127 if (unlikely(rc))
8128 return 1;
8129
8130 sli4_params = &phba->sli4_hba.pc_sli4_params;
8131 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
8132 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
8133 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
8134 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
8135 &mqe->un.sli4_params);
8136 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
8137 &mqe->un.sli4_params);
8138 sli4_params->proto_types = mqe->un.sli4_params.word3;
8139 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
8140 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
8141 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
8142 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
8143 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
8144 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
8145 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
8146 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
8147 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
8148 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
8149 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
8150 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
8151 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
8152 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
8153 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
8154 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
8155 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
8156 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
8157 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
8158 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
0558056c
JS		 8159
8160 /* Make sure that sge_supp_len can be handled by the driver */
8161 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8162 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8163
28baac74
JS		 8164 return rc;
8165}
8166
fedd3b7b
JS		 8167/**
8168 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
8169 * @phba: Pointer to HBA context object.
8170 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8171 *
8172 * This function is called in the SLI4 code path to read the port's
8173 * sli4 capabilities.
8174 *
8175 * This function may be be called from any context that can block-wait
8176 * for the completion. The expectation is that this routine is called
8177 * typically from probe_one or from the online routine.
8178 **/
8179int
8180lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8181{
8182 int rc;
8183 struct lpfc_mqe *mqe = &mboxq->u.mqe;
8184 struct lpfc_pc_sli4_params *sli4_params;
8185 int length;
8186 struct lpfc_sli4_parameters *mbx_sli4_parameters;
8187
6d368e53
JS		 8188 /*
8189 * By default, the driver assumes the SLI4 port requires RPI
8190 * header postings. The SLI4_PARAM response will correct this
8191 * assumption.
8192 */
8193 phba->sli4_hba.rpi_hdrs_in_use = 1;
8194
fedd3b7b
JS		 8195 /* Read the port's SLI4 Config Parameters */
8196 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
8197 sizeof(struct lpfc_sli4_cfg_mhdr));
8198 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8199 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
8200 length, LPFC_SLI4_MBX_EMBED);
8201 if (!phba->sli4_hba.intr_enable)
8202 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8203 else
8204 rc = lpfc_sli_issue_mbox_wait(phba, mboxq,
8205 lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG));
8206 if (unlikely(rc))
8207 return rc;
8208 sli4_params = &phba->sli4_hba.pc_sli4_params;
8209 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
8210 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
8211 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
8212 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
8213 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
8214 mbx_sli4_parameters);
8215 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
8216 mbx_sli4_parameters);
8217 if (bf_get(cfg_phwq, mbx_sli4_parameters))
8218 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
8219 else
8220 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
8221 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
8222 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
8223 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
8224 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
8225 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
8226 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
8227 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
8228 mbx_sli4_parameters);
8229 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
8230 mbx_sli4_parameters);
6d368e53
JS		 8231 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
8232 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
0558056c
JS		 8233
8234 /* Make sure that sge_supp_len can be handled by the driver */
8235 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8236 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8237
fedd3b7b
JS		 8238 return 0;
8239}
8240
da0436e9
JS		 8241/**
8242 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
8243 * @pdev: pointer to PCI device
8244 * @pid: pointer to PCI device identifier
8245 *
8246 * This routine is to be called to attach a device with SLI-3 interface spec
8247 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8248 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8249 * information of the device and driver to see if the driver state that it can
8250 * support this kind of device. If the match is successful, the driver core
8251 * invokes this routine. If this routine determines it can claim the HBA, it
8252 * does all the initialization that it needs to do to handle the HBA properly.
8253 *
8254 * Return code
8255 * 0 - driver can claim the device
8256 * negative value - driver can not claim the device
8257 **/
8258static int __devinit
8259lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
8260{
8261 struct lpfc_hba *phba;
8262 struct lpfc_vport *vport = NULL;
6669f9bb 8263 struct Scsi_Host *shost = NULL;
da0436e9
JS		 8264 int error;
8265 uint32_t cfg_mode, intr_mode;
8266
8267 /* Allocate memory for HBA structure */
8268 phba = lpfc_hba_alloc(pdev);
8269 if (!phba)
8270 return -ENOMEM;
8271
8272 /* Perform generic PCI device enabling operation */
8273 error = lpfc_enable_pci_dev(phba);
8274 if (error) {
8275 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8276 "1401 Failed to enable pci device.\n");
8277 goto out_free_phba;
8278 }
8279
8280 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
8281 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
8282 if (error)
8283 goto out_disable_pci_dev;
8284
8285 /* Set up SLI-3 specific device PCI memory space */
8286 error = lpfc_sli_pci_mem_setup(phba);
8287 if (error) {
8288 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8289 "1402 Failed to set up pci memory space.\n");
8290 goto out_disable_pci_dev;
8291 }
8292
8293 /* Set up phase-1 common device driver resources */
8294 error = lpfc_setup_driver_resource_phase1(phba);
8295 if (error) {
8296 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8297 "1403 Failed to set up driver resource.\n");
8298 goto out_unset_pci_mem_s3;
8299 }
8300
8301 /* Set up SLI-3 specific device driver resources */
8302 error = lpfc_sli_driver_resource_setup(phba);
8303 if (error) {
8304 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8305 "1404 Failed to set up driver resource.\n");
8306 goto out_unset_pci_mem_s3;
8307 }
8308
8309 /* Initialize and populate the iocb list per host */
8310 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
8311 if (error) {
8312 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8313 "1405 Failed to initialize iocb list.\n");
8314 goto out_unset_driver_resource_s3;
8315 }
8316
8317 /* Set up common device driver resources */
8318 error = lpfc_setup_driver_resource_phase2(phba);
8319 if (error) {
8320 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8321 "1406 Failed to set up driver resource.\n");
8322 goto out_free_iocb_list;
8323 }
8324
8325 /* Create SCSI host to the physical port */
8326 error = lpfc_create_shost(phba);
8327 if (error) {
8328 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8329 "1407 Failed to create scsi host.\n");
8330 goto out_unset_driver_resource;
8331 }
8332
8333 /* Configure sysfs attributes */
8334 vport = phba->pport;
8335 error = lpfc_alloc_sysfs_attr(vport);
8336 if (error) {
8337 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8338 "1476 Failed to allocate sysfs attr\n");
8339 goto out_destroy_shost;
8340 }
8341
6669f9bb 8342 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
da0436e9
JS		 8343 /* Now, trying to enable interrupt and bring up the device */
8344 cfg_mode = phba->cfg_use_msi;
8345 while (true) {
8346 /* Put device to a known state before enabling interrupt */
8347 lpfc_stop_port(phba);
8348 /* Configure and enable interrupt */
8349 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
8350 if (intr_mode == LPFC_INTR_ERROR) {
8351 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8352 "0431 Failed to enable interrupt.\n");
8353 error = -ENODEV;
8354 goto out_free_sysfs_attr;
8355 }
8356 /* SLI-3 HBA setup */
8357 if (lpfc_sli_hba_setup(phba)) {
8358 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8359 "1477 Failed to set up hba\n");
8360 error = -ENODEV;
8361 goto out_remove_device;
8362 }
8363
8364 /* Wait 50ms for the interrupts of previous mailbox commands */
8365 msleep(50);
8366 /* Check active interrupts on message signaled interrupts */
8367 if (intr_mode == 0 ||
8368 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
8369 /* Log the current active interrupt mode */
8370 phba->intr_mode = intr_mode;
8371 lpfc_log_intr_mode(phba, intr_mode);
8372 break;
8373 } else {
8374 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8375 "0447 Configure interrupt mode (%d) "
8376 "failed active interrupt test.\n",
8377 intr_mode);
8378 /* Disable the current interrupt mode */
8379 lpfc_sli_disable_intr(phba);
8380 /* Try next level of interrupt mode */
8381 cfg_mode = --intr_mode;
8382 }
8383 }
8384
8385 /* Perform post initialization setup */
8386 lpfc_post_init_setup(phba);
8387
8388 /* Check if there are static vports to be created. */
8389 lpfc_create_static_vport(phba);
8390
8391 return 0;
8392
8393out_remove_device:
8394 lpfc_unset_hba(phba);
8395out_free_sysfs_attr:
8396 lpfc_free_sysfs_attr(vport);
8397out_destroy_shost:
8398 lpfc_destroy_shost(phba);
8399out_unset_driver_resource:
8400 lpfc_unset_driver_resource_phase2(phba);
8401out_free_iocb_list:
8402 lpfc_free_iocb_list(phba);
8403out_unset_driver_resource_s3:
8404 lpfc_sli_driver_resource_unset(phba);
8405out_unset_pci_mem_s3:
8406 lpfc_sli_pci_mem_unset(phba);
8407out_disable_pci_dev:
8408 lpfc_disable_pci_dev(phba);
6669f9bb
JS		 8409 if (shost)
8410 scsi_host_put(shost);
da0436e9
JS		 8411out_free_phba:
8412 lpfc_hba_free(phba);
8413 return error;
8414}
8415
8416/**
8417 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8418 * @pdev: pointer to PCI device
8419 *
8420 * This routine is to be called to disattach a device with SLI-3 interface
8421 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8422 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8423 * device to be removed from the PCI subsystem properly.
8424 **/
8425static void __devexit
8426lpfc_pci_remove_one_s3(struct pci_dev *pdev)
8427{
8428 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8429 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8430 struct lpfc_vport **vports;
8431 struct lpfc_hba *phba = vport->phba;
8432 int i;
8433 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
8434
8435 spin_lock_irq(&phba->hbalock);
8436 vport->load_flag |= FC_UNLOADING;
8437 spin_unlock_irq(&phba->hbalock);
8438
8439 lpfc_free_sysfs_attr(vport);
8440
8441 /* Release all the vports against this physical port */
8442 vports = lpfc_create_vport_work_array(phba);
8443 if (vports != NULL)
8444 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8445 fc_vport_terminate(vports[i]->fc_vport);
8446 lpfc_destroy_vport_work_array(phba, vports);
8447
8448 /* Remove FC host and then SCSI host with the physical port */
8449 fc_remove_host(shost);
8450 scsi_remove_host(shost);
8451 lpfc_cleanup(vport);
8452
8453 /*
8454 * Bring down the SLI Layer. This step disable all interrupts,
8455 * clears the rings, discards all mailbox commands, and resets
8456 * the HBA.
8457 */
8458
48e34d0f 8459 /* HBA interrupt will be disabled after this call */
da0436e9
JS		 8460 lpfc_sli_hba_down(phba);
8461 /* Stop kthread signal shall trigger work_done one more time */
8462 kthread_stop(phba->worker_thread);
8463 /* Final cleanup of txcmplq and reset the HBA */
8464 lpfc_sli_brdrestart(phba);
8465
8466 lpfc_stop_hba_timers(phba);
8467 spin_lock_irq(&phba->hbalock);
8468 list_del_init(&vport->listentry);
8469 spin_unlock_irq(&phba->hbalock);
8470
8471 lpfc_debugfs_terminate(vport);
8472
912e3acd
JS		 8473 /* Disable SR-IOV if enabled */
8474 if (phba->cfg_sriov_nr_virtfn)
8475 pci_disable_sriov(pdev);
8476
da0436e9
JS		 8477 /* Disable interrupt */
8478 lpfc_sli_disable_intr(phba);
8479
8480 pci_set_drvdata(pdev, NULL);
8481 scsi_host_put(shost);
8482
8483 /*
8484 * Call scsi_free before mem_free since scsi bufs are released to their
8485 * corresponding pools here.
8486 */
8487 lpfc_scsi_free(phba);
8488 lpfc_mem_free_all(phba);
8489
8490 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
8491 phba->hbqslimp.virt, phba->hbqslimp.phys);
8492
8493 /* Free resources associated with SLI2 interface */
8494 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
8495 phba->slim2p.virt, phba->slim2p.phys);
8496
8497 /* unmap adapter SLIM and Control Registers */
8498 iounmap(phba->ctrl_regs_memmap_p);
8499 iounmap(phba->slim_memmap_p);
8500
8501 lpfc_hba_free(phba);
8502
8503 pci_release_selected_regions(pdev, bars);
8504 pci_disable_device(pdev);
8505}
8506
8507/**
8508 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
8509 * @pdev: pointer to PCI device
8510 * @msg: power management message
8511 *
8512 * This routine is to be called from the kernel's PCI subsystem to support
8513 * system Power Management (PM) to device with SLI-3 interface spec. When
8514 * PM invokes this method, it quiesces the device by stopping the driver's
8515 * worker thread for the device, turning off device's interrupt and DMA,
8516 * and bring the device offline. Note that as the driver implements the
8517 * minimum PM requirements to a power-aware driver's PM support for the
8518 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8519 * to the suspend() method call will be treated as SUSPEND and the driver will
8520 * fully reinitialize its device during resume() method call, the driver will
8521 * set device to PCI_D3hot state in PCI config space instead of setting it
8522 * according to the @msg provided by the PM.
8523 *
8524 * Return code
8525 * 0 - driver suspended the device
8526 * Error otherwise
8527 **/
8528static int
8529lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
8530{
8531 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8532 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8533
8534 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8535 "0473 PCI device Power Management suspend.\n");
8536
8537 /* Bring down the device */
8538 lpfc_offline_prep(phba);
8539 lpfc_offline(phba);
8540 kthread_stop(phba->worker_thread);
8541
8542 /* Disable interrupt from device */
8543 lpfc_sli_disable_intr(phba);
8544
8545 /* Save device state to PCI config space */
8546 pci_save_state(pdev);
8547 pci_set_power_state(pdev, PCI_D3hot);
8548
8549 return 0;
8550}
8551
8552/**
8553 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
8554 * @pdev: pointer to PCI device
8555 *
8556 * This routine is to be called from the kernel's PCI subsystem to support
8557 * system Power Management (PM) to device with SLI-3 interface spec. When PM
8558 * invokes this method, it restores the device's PCI config space state and
8559 * fully reinitializes the device and brings it online. Note that as the
8560 * driver implements the minimum PM requirements to a power-aware driver's
8561 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
8562 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
8563 * driver will fully reinitialize its device during resume() method call,
8564 * the device will be set to PCI_D0 directly in PCI config space before
8565 * restoring the state.
8566 *
8567 * Return code
8568 * 0 - driver suspended the device
8569 * Error otherwise
8570 **/
8571static int
8572lpfc_pci_resume_one_s3(struct pci_dev *pdev)
8573{
8574 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8575 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8576 uint32_t intr_mode;
8577 int error;
8578
8579 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8580 "0452 PCI device Power Management resume.\n");
8581
8582 /* Restore device state from PCI config space */
8583 pci_set_power_state(pdev, PCI_D0);
8584 pci_restore_state(pdev);
0d878419 8585
1dfb5a47
JS		 8586 /*
8587 * As the new kernel behavior of pci_restore_state() API call clears
8588 * device saved_state flag, need to save the restored state again.
8589 */
8590 pci_save_state(pdev);
8591
da0436e9
JS		 8592 if (pdev->is_busmaster)
8593 pci_set_master(pdev);
8594
8595 /* Startup the kernel thread for this host adapter. */
8596 phba->worker_thread = kthread_run(lpfc_do_work, phba,
8597 "lpfc_worker_%d", phba->brd_no);
8598 if (IS_ERR(phba->worker_thread)) {
8599 error = PTR_ERR(phba->worker_thread);
8600 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8601 "0434 PM resume failed to start worker "
8602 "thread: error=x%x.\n", error);
8603 return error;
8604 }
8605
8606 /* Configure and enable interrupt */
8607 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8608 if (intr_mode == LPFC_INTR_ERROR) {
8609 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8610 "0430 PM resume Failed to enable interrupt\n");
8611 return -EIO;
8612 } else
8613 phba->intr_mode = intr_mode;
8614
8615 /* Restart HBA and bring it online */
8616 lpfc_sli_brdrestart(phba);
8617 lpfc_online(phba);
8618
8619 /* Log the current active interrupt mode */
8620 lpfc_log_intr_mode(phba, phba->intr_mode);
8621
8622 return 0;
8623}
8624
891478a2
JS		 8625/**
8626 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
8627 * @phba: pointer to lpfc hba data structure.
8628 *
8629 * This routine is called to prepare the SLI3 device for PCI slot recover. It
e2af0d2e 8630 * aborts all the outstanding SCSI I/Os to the pci device.
891478a2
JS		 8631 **/
8632static void
8633lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
8634{
e2af0d2e
JS		 8635 struct lpfc_sli *psli = &phba->sli;
8636 struct lpfc_sli_ring *pring;
8637
891478a2
JS		 8638 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8639 "2723 PCI channel I/O abort preparing for recovery\n");
e2af0d2e
JS		 8640
8641 /*
8642 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8643 * and let the SCSI mid-layer to retry them to recover.
8644 */
8645 pring = &psli->ring[psli->fcp_ring];
8646 lpfc_sli_abort_iocb_ring(phba, pring);
891478a2
JS		 8647}
8648
0d878419
JS		 8649/**
8650 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
8651 * @phba: pointer to lpfc hba data structure.
8652 *
8653 * This routine is called to prepare the SLI3 device for PCI slot reset. It
8654 * disables the device interrupt and pci device, and aborts the internal FCP
8655 * pending I/Os.
8656 **/
8657static void
8658lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
8659{
0d878419 8660 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
891478a2 8661 "2710 PCI channel disable preparing for reset\n");
e2af0d2e 8662
75baf696
JS		 8663 /* Block any management I/Os to the device */
8664 lpfc_block_mgmt_io(phba);
8665
e2af0d2e
JS		 8666 /* Block all SCSI devices' I/Os on the host */
8667 lpfc_scsi_dev_block(phba);
8668
8669 /* stop all timers */
8670 lpfc_stop_hba_timers(phba);
8671
0d878419
JS		 8672 /* Disable interrupt and pci device */
8673 lpfc_sli_disable_intr(phba);
8674 pci_disable_device(phba->pcidev);
75baf696 8675
e2af0d2e
JS		 8676 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8677 lpfc_sli_flush_fcp_rings(phba);
0d878419
JS		 8678}
8679
8680/**
8681 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
8682 * @phba: pointer to lpfc hba data structure.
8683 *
8684 * This routine is called to prepare the SLI3 device for PCI slot permanently
8685 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8686 * pending I/Os.
8687 **/
8688static void
75baf696 8689lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
0d878419
JS		 8690{
8691 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
891478a2 8692 "2711 PCI channel permanent disable for failure\n");
e2af0d2e
JS		 8693 /* Block all SCSI devices' I/Os on the host */
8694 lpfc_scsi_dev_block(phba);
8695
8696 /* stop all timers */
8697 lpfc_stop_hba_timers(phba);
8698
0d878419
JS		 8699 /* Clean up all driver's outstanding SCSI I/Os */
8700 lpfc_sli_flush_fcp_rings(phba);
8701}
8702
da0436e9
JS		 8703/**
8704 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
8705 * @pdev: pointer to PCI device.
8706 * @state: the current PCI connection state.
8707 *
8708 * This routine is called from the PCI subsystem for I/O error handling to
8709 * device with SLI-3 interface spec. This function is called by the PCI
8710 * subsystem after a PCI bus error affecting this device has been detected.
8711 * When this function is invoked, it will need to stop all the I/Os and
8712 * interrupt(s) to the device. Once that is done, it will return
8713 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
8714 * as desired.
8715 *
8716 * Return codes
0d878419 8717 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
da0436e9
JS		 8718 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8719 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8720 **/
8721static pci_ers_result_t
8722lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
8723{
8724 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8725 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
da0436e9 8726
0d878419
JS		 8727 switch (state) {
8728 case pci_channel_io_normal:
891478a2
JS		 8729 /* Non-fatal error, prepare for recovery */
8730 lpfc_sli_prep_dev_for_recover(phba);
0d878419
JS		 8731 return PCI_ERS_RESULT_CAN_RECOVER;
8732 case pci_channel_io_frozen:
8733 /* Fatal error, prepare for slot reset */
8734 lpfc_sli_prep_dev_for_reset(phba);
8735 return PCI_ERS_RESULT_NEED_RESET;
8736 case pci_channel_io_perm_failure:
8737 /* Permanent failure, prepare for device down */
75baf696 8738 lpfc_sli_prep_dev_for_perm_failure(phba);
da0436e9 8739 return PCI_ERS_RESULT_DISCONNECT;
0d878419
JS		 8740 default:
8741 /* Unknown state, prepare and request slot reset */
8742 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8743 "0472 Unknown PCI error state: x%x\n", state);
8744 lpfc_sli_prep_dev_for_reset(phba);
8745 return PCI_ERS_RESULT_NEED_RESET;
da0436e9 8746 }
da0436e9
JS		 8747}
8748
8749/**
8750 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
8751 * @pdev: pointer to PCI device.
8752 *
8753 * This routine is called from the PCI subsystem for error handling to
8754 * device with SLI-3 interface spec. This is called after PCI bus has been
8755 * reset to restart the PCI card from scratch, as if from a cold-boot.
8756 * During the PCI subsystem error recovery, after driver returns
8757 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8758 * recovery and then call this routine before calling the .resume method
8759 * to recover the device. This function will initialize the HBA device,
8760 * enable the interrupt, but it will just put the HBA to offline state
8761 * without passing any I/O traffic.
8762 *
8763 * Return codes
8764 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8765 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8766 */
8767static pci_ers_result_t
8768lpfc_io_slot_reset_s3(struct pci_dev *pdev)
8769{
8770 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8771 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8772 struct lpfc_sli *psli = &phba->sli;
8773 uint32_t intr_mode;
8774
8775 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
8776 if (pci_enable_device_mem(pdev)) {
8777 printk(KERN_ERR "lpfc: Cannot re-enable "
8778 "PCI device after reset.\n");
8779 return PCI_ERS_RESULT_DISCONNECT;
8780 }
8781
8782 pci_restore_state(pdev);
1dfb5a47
JS		 8783
8784 /*
8785 * As the new kernel behavior of pci_restore_state() API call clears
8786 * device saved_state flag, need to save the restored state again.
8787 */
8788 pci_save_state(pdev);
8789
da0436e9
JS		 8790 if (pdev->is_busmaster)
8791 pci_set_master(pdev);
8792
8793 spin_lock_irq(&phba->hbalock);
8794 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8795 spin_unlock_irq(&phba->hbalock);
8796
8797 /* Configure and enable interrupt */
8798 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8799 if (intr_mode == LPFC_INTR_ERROR) {
8800 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8801 "0427 Cannot re-enable interrupt after "
8802 "slot reset.\n");
8803 return PCI_ERS_RESULT_DISCONNECT;
8804 } else
8805 phba->intr_mode = intr_mode;
8806
75baf696
JS		 8807 /* Take device offline, it will perform cleanup */
8808 lpfc_offline_prep(phba);
da0436e9
JS		 8809 lpfc_offline(phba);
8810 lpfc_sli_brdrestart(phba);
8811
8812 /* Log the current active interrupt mode */
8813 lpfc_log_intr_mode(phba, phba->intr_mode);
8814
8815 return PCI_ERS_RESULT_RECOVERED;
8816}
8817
8818/**
8819 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
8820 * @pdev: pointer to PCI device
8821 *
8822 * This routine is called from the PCI subsystem for error handling to device
8823 * with SLI-3 interface spec. It is called when kernel error recovery tells
8824 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8825 * error recovery. After this call, traffic can start to flow from this device
8826 * again.
8827 */
8828static void
8829lpfc_io_resume_s3(struct pci_dev *pdev)
8830{
8831 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8832 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3772a991 8833
e2af0d2e 8834 /* Bring device online, it will be no-op for non-fatal error resume */
da0436e9 8835 lpfc_online(phba);
0d878419
JS		 8836
8837 /* Clean up Advanced Error Reporting (AER) if needed */
8838 if (phba->hba_flag & HBA_AER_ENABLED)
8839 pci_cleanup_aer_uncorrect_error_status(pdev);
da0436e9 8840}
3772a991 8841
da0436e9
JS		 8842/**
8843 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
8844 * @phba: pointer to lpfc hba data structure.
8845 *
8846 * returns the number of ELS/CT IOCBs to reserve
8847 **/
8848int
8849lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
8850{
8851 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
8852
f1126688
JS		 8853 if (phba->sli_rev == LPFC_SLI_REV4) {
8854 if (max_xri <= 100)
6a9c52cf 8855 return 10;
f1126688 8856 else if (max_xri <= 256)
6a9c52cf 8857 return 25;
f1126688 8858 else if (max_xri <= 512)
6a9c52cf 8859 return 50;
f1126688 8860 else if (max_xri <= 1024)
6a9c52cf 8861 return 100;
f1126688 8862 else
6a9c52cf 8863 return 150;
f1126688
JS		 8864 } else
8865 return 0;
3772a991
JS		 8866}
8867
52d52440
JS		 8868/**
8869 * lpfc_write_firmware - attempt to write a firmware image to the port
8870 * @phba: pointer to lpfc hba data structure.
8871 * @fw: pointer to firmware image returned from request_firmware.
8872 *
8873 * returns the number of bytes written if write is successful.
8874 * returns a negative error value if there were errors.
8875 * returns 0 if firmware matches currently active firmware on port.
8876 **/
8877int
8878lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw)
8879{
8880 char fwrev[32];
8881 struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data;
8882 struct list_head dma_buffer_list;
8883 int i, rc = 0;
8884 struct lpfc_dmabuf *dmabuf, *next;
8885 uint32_t offset = 0, temp_offset = 0;
8886
8887 INIT_LIST_HEAD(&dma_buffer_list);
8888 if ((image->magic_number != LPFC_GROUP_OJECT_MAGIC_NUM) ||
8889 (bf_get(lpfc_grp_hdr_file_type, image) != LPFC_FILE_TYPE_GROUP) ||
8890 (bf_get(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
8891 (image->size != fw->size)) {
8892 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8893 "3022 Invalid FW image found. "
8894 "Magic:%d Type:%x ID:%x\n",
8895 image->magic_number,
8896 bf_get(lpfc_grp_hdr_file_type, image),
8897 bf_get(lpfc_grp_hdr_id, image));
8898 return -EINVAL;
8899 }
8900 lpfc_decode_firmware_rev(phba, fwrev, 1);
88a2cfbb 8901 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
52d52440
JS		 8902 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8903 "3023 Updating Firmware. Current Version:%s "
8904 "New Version:%s\n",
88a2cfbb 8905 fwrev, image->revision);
52d52440
JS		 8906 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
8907 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
8908 GFP_KERNEL);
8909 if (!dmabuf) {
8910 rc = -ENOMEM;
8911 goto out;
8912 }
8913 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
8914 SLI4_PAGE_SIZE,
8915 &dmabuf->phys,
8916 GFP_KERNEL);
8917 if (!dmabuf->virt) {
8918 kfree(dmabuf);
8919 rc = -ENOMEM;
8920 goto out;
8921 }
8922 list_add_tail(&dmabuf->list, &dma_buffer_list);
8923 }
8924 while (offset < fw->size) {
8925 temp_offset = offset;
8926 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
8927 if (offset + SLI4_PAGE_SIZE > fw->size) {
8928 temp_offset += fw->size - offset;
8929 memcpy(dmabuf->virt,
8930 fw->data + temp_offset,
8931 fw->size - offset);
8932 break;
8933 }
52d52440
JS		 8934 memcpy(dmabuf->virt, fw->data + temp_offset,
8935 SLI4_PAGE_SIZE);
88a2cfbb 8936 temp_offset += SLI4_PAGE_SIZE;
52d52440
JS		 8937 }
8938 rc = lpfc_wr_object(phba, &dma_buffer_list,
8939 (fw->size - offset), &offset);
8940 if (rc) {
8941 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8942 "3024 Firmware update failed. "
8943 "%d\n", rc);
8944 goto out;
8945 }
8946 }
8947 rc = offset;
8948 }
8949out:
8950 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
8951 list_del(&dmabuf->list);
8952 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
8953 dmabuf->virt, dmabuf->phys);
8954 kfree(dmabuf);
8955 }
8956 return rc;
8957}
8958
3772a991 8959/**
da0436e9 8960 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
3772a991
JS		 8961 * @pdev: pointer to PCI device
8962 * @pid: pointer to PCI device identifier
8963 *
da0436e9
JS		 8964 * This routine is called from the kernel's PCI subsystem to device with
8965 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
3772a991 8966 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
da0436e9
JS		 8967 * information of the device and driver to see if the driver state that it
8968 * can support this kind of device. If the match is successful, the driver
8969 * core invokes this routine. If this routine determines it can claim the HBA,
8970 * it does all the initialization that it needs to do to handle the HBA
8971 * properly.
3772a991
JS		 8972 *
8973 * Return code
8974 * 0 - driver can claim the device
8975 * negative value - driver can not claim the device
8976 **/
8977static int __devinit
da0436e9 8978lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
3772a991
JS		 8979{
8980 struct lpfc_hba *phba;
8981 struct lpfc_vport *vport = NULL;
6669f9bb 8982 struct Scsi_Host *shost = NULL;
3772a991
JS		 8983 int error;
8984 uint32_t cfg_mode, intr_mode;
da0436e9 8985 int mcnt;
0558056c
JS		 8986 int adjusted_fcp_eq_count;
8987 int fcp_qidx;
52d52440
JS		 8988 const struct firmware *fw;
8989 uint8_t file_name[16];
3772a991
JS		 8990
8991 /* Allocate memory for HBA structure */
8992 phba = lpfc_hba_alloc(pdev);
8993 if (!phba)
8994 return -ENOMEM;
8995
8996 /* Perform generic PCI device enabling operation */
8997 error = lpfc_enable_pci_dev(phba);
8998 if (error) {
8999 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9000 "1409 Failed to enable pci device.\n");
3772a991
JS		 9001 goto out_free_phba;
9002 }
9003
da0436e9
JS		 9004 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
9005 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
3772a991
JS		 9006 if (error)
9007 goto out_disable_pci_dev;
9008
da0436e9
JS		 9009 /* Set up SLI-4 specific device PCI memory space */
9010 error = lpfc_sli4_pci_mem_setup(phba);
3772a991
JS		 9011 if (error) {
9012 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9013 "1410 Failed to set up pci memory space.\n");
3772a991
JS		 9014 goto out_disable_pci_dev;
9015 }
9016
9017 /* Set up phase-1 common device driver resources */
9018 error = lpfc_setup_driver_resource_phase1(phba);
9019 if (error) {
9020 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 9021 "1411 Failed to set up driver resource.\n");
9022 goto out_unset_pci_mem_s4;
3772a991
JS		 9023 }
9024
da0436e9
JS		 9025 /* Set up SLI-4 Specific device driver resources */
9026 error = lpfc_sli4_driver_resource_setup(phba);
3772a991
JS		 9027 if (error) {
9028 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 9029 "1412 Failed to set up driver resource.\n");
9030 goto out_unset_pci_mem_s4;
3772a991
JS		 9031 }
9032
9033 /* Initialize and populate the iocb list per host */
2a9bf3d0
JS		 9034
9035 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9036 "2821 initialize iocb list %d.\n",
9037 phba->cfg_iocb_cnt*1024);
9038 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
9039
3772a991
JS		 9040 if (error) {
9041 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 9042 "1413 Failed to initialize iocb list.\n");
9043 goto out_unset_driver_resource_s4;
3772a991
JS		 9044 }
9045
19ca7609 9046 INIT_LIST_HEAD(&phba->active_rrq_list);
7d791df7 9047 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
19ca7609 9048
3772a991
JS		 9049 /* Set up common device driver resources */
9050 error = lpfc_setup_driver_resource_phase2(phba);
9051 if (error) {
9052 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9053 "1414 Failed to set up driver resource.\n");
3772a991
JS		 9054 goto out_free_iocb_list;
9055 }
9056
9057 /* Create SCSI host to the physical port */
9058 error = lpfc_create_shost(phba);
9059 if (error) {
9060 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9061 "1415 Failed to create scsi host.\n");
3772a991
JS		 9062 goto out_unset_driver_resource;
9063 }
9399627f 9064
5b75da2f 9065 /* Configure sysfs attributes */
3772a991
JS		 9066 vport = phba->pport;
9067 error = lpfc_alloc_sysfs_attr(vport);
9068 if (error) {
9399627f 9069 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9070 "1416 Failed to allocate sysfs attr\n");
3772a991 9071 goto out_destroy_shost;
98c9ea5c 9072 }
875fbdfe 9073
6669f9bb 9074 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
3772a991 9075 /* Now, trying to enable interrupt and bring up the device */
5b75da2f
JS		 9076 cfg_mode = phba->cfg_use_msi;
9077 while (true) {
3772a991
JS		 9078 /* Put device to a known state before enabling interrupt */
9079 lpfc_stop_port(phba);
5b75da2f 9080 /* Configure and enable interrupt */
da0436e9 9081 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
5b75da2f
JS		 9082 if (intr_mode == LPFC_INTR_ERROR) {
9083 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9084 "0426 Failed to enable interrupt.\n");
3772a991 9085 error = -ENODEV;
5b75da2f
JS		 9086 goto out_free_sysfs_attr;
9087 }
0558056c 9088 /* Default to single EQ for non-MSI-X */
def9c7a9 9089 if (phba->intr_type != MSIX)
0558056c
JS		 9090 adjusted_fcp_eq_count = 0;
9091 else if (phba->sli4_hba.msix_vec_nr <
9092 phba->cfg_fcp_eq_count + 1)
9093 adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
9094 else
9095 adjusted_fcp_eq_count = phba->cfg_fcp_eq_count;
9096 /* Free unused EQs */
9097 for (fcp_qidx = adjusted_fcp_eq_count;
9098 fcp_qidx < phba->cfg_fcp_eq_count;
9099 fcp_qidx++) {
9100 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
9101 /* do not delete the first fcp_cq */
9102 if (fcp_qidx)
9103 lpfc_sli4_queue_free(
9104 phba->sli4_hba.fcp_cq[fcp_qidx]);
9105 }
9106 phba->cfg_fcp_eq_count = adjusted_fcp_eq_count;
da0436e9
JS		 9107 /* Set up SLI-4 HBA */
9108 if (lpfc_sli4_hba_setup(phba)) {
5b75da2f 9109 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9110 "1421 Failed to set up hba\n");
5b75da2f 9111 error = -ENODEV;
da0436e9 9112 goto out_disable_intr;
5b75da2f
JS		 9113 }
9114
da0436e9
JS		 9115 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
9116 if (intr_mode != 0)
9117 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
9118 LPFC_ACT_INTR_CNT);
9119
9120 /* Check active interrupts received only for MSI/MSI-X */
3772a991 9121 if (intr_mode == 0 ||
da0436e9 9122 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
5b75da2f
JS		 9123 /* Log the current active interrupt mode */
9124 phba->intr_mode = intr_mode;
9125 lpfc_log_intr_mode(phba, intr_mode);
9126 break;
5b75da2f 9127 }
da0436e9
JS		 9128 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9129 "0451 Configure interrupt mode (%d) "
9130 "failed active interrupt test.\n",
9131 intr_mode);
2fcee4bf
JS		 9132 /* Unset the previous SLI-4 HBA setup. */
9133 /*
9134 * TODO: Is this operation compatible with IF TYPE 2
9135 * devices? All port state is deleted and cleared.
9136 */
da0436e9
JS		 9137 lpfc_sli4_unset_hba(phba);
9138 /* Try next level of interrupt mode */
9139 cfg_mode = --intr_mode;
98c9ea5c 9140 }
858c9f6c 9141
3772a991
JS		 9142 /* Perform post initialization setup */
9143 lpfc_post_init_setup(phba);
dea3101e 9144
52d52440
JS		 9145 /* check for firmware upgrade or downgrade */
9146 snprintf(file_name, 16, "%s.grp", phba->ModelName);
9147 error = request_firmware(&fw, file_name, &phba->pcidev->dev);
9148 if (!error) {
9149 lpfc_write_firmware(phba, fw);
9150 release_firmware(fw);
9151 }
9152
1c6834a7
JS		 9153 /* Check if there are static vports to be created. */
9154 lpfc_create_static_vport(phba);
dea3101e 9155 return 0;
9156
da0436e9
JS		 9157out_disable_intr:
9158 lpfc_sli4_disable_intr(phba);
5b75da2f
JS		 9159out_free_sysfs_attr:
9160 lpfc_free_sysfs_attr(vport);
3772a991
JS		 9161out_destroy_shost:
9162 lpfc_destroy_shost(phba);
9163out_unset_driver_resource:
9164 lpfc_unset_driver_resource_phase2(phba);
9165out_free_iocb_list:
9166 lpfc_free_iocb_list(phba);
da0436e9
JS		 9167out_unset_driver_resource_s4:
9168 lpfc_sli4_driver_resource_unset(phba);
9169out_unset_pci_mem_s4:
9170 lpfc_sli4_pci_mem_unset(phba);
3772a991
JS		 9171out_disable_pci_dev:
9172 lpfc_disable_pci_dev(phba);
6669f9bb
JS		 9173 if (shost)
9174 scsi_host_put(shost);
2e0fef85 9175out_free_phba:
3772a991 9176 lpfc_hba_free(phba);
dea3101e 9177 return error;
9178}
9179
e59058c4 9180/**
da0436e9 9181 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
e59058c4
JS		 9182 * @pdev: pointer to PCI device
9183 *
da0436e9
JS		 9184 * This routine is called from the kernel's PCI subsystem to device with
9185 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
3772a991
JS		 9186 * removed from PCI bus, it performs all the necessary cleanup for the HBA
9187 * device to be removed from the PCI subsystem properly.
e59058c4 9188 **/
dea3101e 9189static void __devexit
da0436e9 9190lpfc_pci_remove_one_s4(struct pci_dev *pdev)
dea3101e 9191{
da0436e9 9192 struct Scsi_Host *shost = pci_get_drvdata(pdev);
2e0fef85 9193 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
eada272d 9194 struct lpfc_vport **vports;
da0436e9 9195 struct lpfc_hba *phba = vport->phba;
eada272d 9196 int i;
8a4df120 9197
da0436e9 9198 /* Mark the device unloading flag */
549e55cd 9199 spin_lock_irq(&phba->hbalock);
51ef4c26 9200 vport->load_flag |= FC_UNLOADING;
549e55cd 9201 spin_unlock_irq(&phba->hbalock);
2e0fef85 9202
da0436e9 9203 /* Free the HBA sysfs attributes */
858c9f6c
JS		 9204 lpfc_free_sysfs_attr(vport);
9205
eada272d
JS		 9206 /* Release all the vports against this physical port */
9207 vports = lpfc_create_vport_work_array(phba);
9208 if (vports != NULL)
3772a991 9209 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
eada272d
JS		 9210 fc_vport_terminate(vports[i]->fc_vport);
9211 lpfc_destroy_vport_work_array(phba, vports);
9212
9213 /* Remove FC host and then SCSI host with the physical port */
858c9f6c
JS		 9214 fc_remove_host(shost);
9215 scsi_remove_host(shost);
da0436e9
JS		 9216
9217 /* Perform cleanup on the physical port */
87af33fe
JS		 9218 lpfc_cleanup(vport);
9219
2e0fef85 9220 /*
da0436e9 9221 * Bring down the SLI Layer. This step disables all interrupts,
2e0fef85 9222 * clears the rings, discards all mailbox commands, and resets
da0436e9 9223 * the HBA FCoE function.
2e0fef85 9224 */
da0436e9
JS		 9225 lpfc_debugfs_terminate(vport);
9226 lpfc_sli4_hba_unset(phba);
a257bf90 9227
858c9f6c
JS		 9228 spin_lock_irq(&phba->hbalock);
9229 list_del_init(&vport->listentry);
9230 spin_unlock_irq(&phba->hbalock);
9231
3677a3a7 9232 /* Perform scsi free before driver resource_unset since scsi
da0436e9 9233 * buffers are released to their corresponding pools here.
2e0fef85
JS		 9234 */
9235 lpfc_scsi_free(phba);
da0436e9 9236 lpfc_sli4_driver_resource_unset(phba);
ed957684 9237
da0436e9
JS		 9238 /* Unmap adapter Control and Doorbell registers */
9239 lpfc_sli4_pci_mem_unset(phba);
2e0fef85 9240
da0436e9
JS		 9241 /* Release PCI resources and disable device's PCI function */
9242 scsi_host_put(shost);
9243 lpfc_disable_pci_dev(phba);
2e0fef85 9244
da0436e9 9245 /* Finally, free the driver's device data structure */
3772a991 9246 lpfc_hba_free(phba);
2e0fef85 9247
da0436e9 9248 return;
dea3101e 9249}
9250
3a55b532 9251/**
da0436e9 9252 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
3a55b532
JS		 9253 * @pdev: pointer to PCI device
9254 * @msg: power management message
9255 *
da0436e9
JS		 9256 * This routine is called from the kernel's PCI subsystem to support system
9257 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
9258 * this method, it quiesces the device by stopping the driver's worker
9259 * thread for the device, turning off device's interrupt and DMA, and bring
9260 * the device offline. Note that as the driver implements the minimum PM
9261 * requirements to a power-aware driver's PM support for suspend/resume -- all
9262 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
9263 * method call will be treated as SUSPEND and the driver will fully
9264 * reinitialize its device during resume() method call, the driver will set
9265 * device to PCI_D3hot state in PCI config space instead of setting it
3772a991 9266 * according to the @msg provided by the PM.
3a55b532
JS		 9267 *
9268 * Return code
3772a991
JS		 9269 * 0 - driver suspended the device
9270 * Error otherwise
3a55b532
JS		 9271 **/
9272static int
da0436e9 9273lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
3a55b532
JS		 9274{
9275 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9276 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9277
9278 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
75baf696 9279 "2843 PCI device Power Management suspend.\n");
3a55b532
JS		 9280
9281 /* Bring down the device */
9282 lpfc_offline_prep(phba);
9283 lpfc_offline(phba);
9284 kthread_stop(phba->worker_thread);
9285
9286 /* Disable interrupt from device */
da0436e9 9287 lpfc_sli4_disable_intr(phba);
3a55b532
JS		 9288
9289 /* Save device state to PCI config space */
9290 pci_save_state(pdev);
9291 pci_set_power_state(pdev, PCI_D3hot);
9292
9293 return 0;
9294}
9295
9296/**
da0436e9 9297 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
3a55b532
JS		 9298 * @pdev: pointer to PCI device
9299 *
da0436e9
JS		 9300 * This routine is called from the kernel's PCI subsystem to support system
9301 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
9302 * this method, it restores the device's PCI config space state and fully
9303 * reinitializes the device and brings it online. Note that as the driver
9304 * implements the minimum PM requirements to a power-aware driver's PM for
9305 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9306 * to the suspend() method call will be treated as SUSPEND and the driver
9307 * will fully reinitialize its device during resume() method call, the device
9308 * will be set to PCI_D0 directly in PCI config space before restoring the
9309 * state.
3a55b532
JS		 9310 *
9311 * Return code
3772a991
JS		 9312 * 0 - driver suspended the device
9313 * Error otherwise
3a55b532
JS		 9314 **/
9315static int
da0436e9 9316lpfc_pci_resume_one_s4(struct pci_dev *pdev)
3a55b532
JS		 9317{
9318 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9319 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
5b75da2f 9320 uint32_t intr_mode;
3a55b532
JS		 9321 int error;
9322
9323 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
da0436e9 9324 "0292 PCI device Power Management resume.\n");
3a55b532
JS		 9325
9326 /* Restore device state from PCI config space */
9327 pci_set_power_state(pdev, PCI_D0);
9328 pci_restore_state(pdev);
1dfb5a47
JS		 9329
9330 /*
9331 * As the new kernel behavior of pci_restore_state() API call clears
9332 * device saved_state flag, need to save the restored state again.
9333 */
9334 pci_save_state(pdev);
9335
3a55b532
JS		 9336 if (pdev->is_busmaster)
9337 pci_set_master(pdev);
9338
da0436e9 9339 /* Startup the kernel thread for this host adapter. */
3a55b532
JS		 9340 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9341 "lpfc_worker_%d", phba->brd_no);
9342 if (IS_ERR(phba->worker_thread)) {
9343 error = PTR_ERR(phba->worker_thread);
9344 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9345 "0293 PM resume failed to start worker "
3a55b532
JS		 9346 "thread: error=x%x.\n", error);
9347 return error;
9348 }
9349
5b75da2f 9350 /* Configure and enable interrupt */
da0436e9 9351 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
5b75da2f 9352 if (intr_mode == LPFC_INTR_ERROR) {
3a55b532 9353 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9354 "0294 PM resume Failed to enable interrupt\n");
5b75da2f
JS		 9355 return -EIO;
9356 } else
9357 phba->intr_mode = intr_mode;
3a55b532
JS		 9358
9359 /* Restart HBA and bring it online */
9360 lpfc_sli_brdrestart(phba);
9361 lpfc_online(phba);
9362
5b75da2f
JS		 9363 /* Log the current active interrupt mode */
9364 lpfc_log_intr_mode(phba, phba->intr_mode);
9365
3a55b532
JS		 9366 return 0;
9367}
9368
75baf696
JS		 9369/**
9370 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
9371 * @phba: pointer to lpfc hba data structure.
9372 *
9373 * This routine is called to prepare the SLI4 device for PCI slot recover. It
9374 * aborts all the outstanding SCSI I/Os to the pci device.
9375 **/
9376static void
9377lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
9378{
9379 struct lpfc_sli *psli = &phba->sli;
9380 struct lpfc_sli_ring *pring;
9381
9382 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9383 "2828 PCI channel I/O abort preparing for recovery\n");
9384 /*
9385 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9386 * and let the SCSI mid-layer to retry them to recover.
9387 */
9388 pring = &psli->ring[psli->fcp_ring];
9389 lpfc_sli_abort_iocb_ring(phba, pring);
9390}
9391
9392/**
9393 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
9394 * @phba: pointer to lpfc hba data structure.
9395 *
9396 * This routine is called to prepare the SLI4 device for PCI slot reset. It
9397 * disables the device interrupt and pci device, and aborts the internal FCP
9398 * pending I/Os.
9399 **/
9400static void
9401lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
9402{
9403 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9404 "2826 PCI channel disable preparing for reset\n");
9405
9406 /* Block any management I/Os to the device */
9407 lpfc_block_mgmt_io(phba);
9408
9409 /* Block all SCSI devices' I/Os on the host */
9410 lpfc_scsi_dev_block(phba);
9411
9412 /* stop all timers */
9413 lpfc_stop_hba_timers(phba);
9414
9415 /* Disable interrupt and pci device */
9416 lpfc_sli4_disable_intr(phba);
9417 pci_disable_device(phba->pcidev);
9418
9419 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9420 lpfc_sli_flush_fcp_rings(phba);
9421}
9422
9423/**
9424 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
9425 * @phba: pointer to lpfc hba data structure.
9426 *
9427 * This routine is called to prepare the SLI4 device for PCI slot permanently
9428 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9429 * pending I/Os.
9430 **/
9431static void
9432lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9433{
9434 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9435 "2827 PCI channel permanent disable for failure\n");
9436
9437 /* Block all SCSI devices' I/Os on the host */
9438 lpfc_scsi_dev_block(phba);
9439
9440 /* stop all timers */
9441 lpfc_stop_hba_timers(phba);
9442
9443 /* Clean up all driver's outstanding SCSI I/Os */
9444 lpfc_sli_flush_fcp_rings(phba);
9445}
9446
8d63f375 9447/**
da0436e9 9448 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
e59058c4
JS		 9449 * @pdev: pointer to PCI device.
9450 * @state: the current PCI connection state.
8d63f375 9451 *
da0436e9
JS		 9452 * This routine is called from the PCI subsystem for error handling to device
9453 * with SLI-4 interface spec. This function is called by the PCI subsystem
9454 * after a PCI bus error affecting this device has been detected. When this
9455 * function is invoked, it will need to stop all the I/Os and interrupt(s)
9456 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
9457 * for the PCI subsystem to perform proper recovery as desired.
e59058c4
JS		 9458 *
9459 * Return codes
3772a991
JS		 9460 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9461 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
e59058c4 9462 **/
3772a991 9463static pci_ers_result_t
da0436e9 9464lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
8d63f375 9465{
75baf696
JS		 9466 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9467 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9468
9469 switch (state) {
9470 case pci_channel_io_normal:
9471 /* Non-fatal error, prepare for recovery */
9472 lpfc_sli4_prep_dev_for_recover(phba);
9473 return PCI_ERS_RESULT_CAN_RECOVER;
9474 case pci_channel_io_frozen:
9475 /* Fatal error, prepare for slot reset */
9476 lpfc_sli4_prep_dev_for_reset(phba);
9477 return PCI_ERS_RESULT_NEED_RESET;
9478 case pci_channel_io_perm_failure:
9479 /* Permanent failure, prepare for device down */
9480 lpfc_sli4_prep_dev_for_perm_failure(phba);
9481 return PCI_ERS_RESULT_DISCONNECT;
9482 default:
9483 /* Unknown state, prepare and request slot reset */
9484 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9485 "2825 Unknown PCI error state: x%x\n", state);
9486 lpfc_sli4_prep_dev_for_reset(phba);
9487 return PCI_ERS_RESULT_NEED_RESET;
9488 }
8d63f375
LV		 9489}
9490
9491/**
da0436e9 9492 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
e59058c4
JS		 9493 * @pdev: pointer to PCI device.
9494 *
da0436e9
JS		 9495 * This routine is called from the PCI subsystem for error handling to device
9496 * with SLI-4 interface spec. It is called after PCI bus has been reset to
9497 * restart the PCI card from scratch, as if from a cold-boot. During the
9498 * PCI subsystem error recovery, after the driver returns
3772a991 9499 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
da0436e9
JS		 9500 * recovery and then call this routine before calling the .resume method to
9501 * recover the device. This function will initialize the HBA device, enable
9502 * the interrupt, but it will just put the HBA to offline state without
9503 * passing any I/O traffic.
8d63f375 9504 *
e59058c4 9505 * Return codes
3772a991
JS		 9506 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9507 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8d63f375 9508 */
3772a991 9509static pci_ers_result_t
da0436e9 9510lpfc_io_slot_reset_s4(struct pci_dev *pdev)
8d63f375 9511{
75baf696
JS		 9512 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9513 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9514 struct lpfc_sli *psli = &phba->sli;
9515 uint32_t intr_mode;
9516
9517 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9518 if (pci_enable_device_mem(pdev)) {
9519 printk(KERN_ERR "lpfc: Cannot re-enable "
9520 "PCI device after reset.\n");
9521 return PCI_ERS_RESULT_DISCONNECT;
9522 }
9523
9524 pci_restore_state(pdev);
0a96e975
JS		 9525
9526 /*
9527 * As the new kernel behavior of pci_restore_state() API call clears
9528 * device saved_state flag, need to save the restored state again.
9529 */
9530 pci_save_state(pdev);
9531
75baf696
JS		 9532 if (pdev->is_busmaster)
9533 pci_set_master(pdev);
9534
9535 spin_lock_irq(&phba->hbalock);
9536 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9537 spin_unlock_irq(&phba->hbalock);
9538
9539 /* Configure and enable interrupt */
9540 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9541 if (intr_mode == LPFC_INTR_ERROR) {
9542 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9543 "2824 Cannot re-enable interrupt after "
9544 "slot reset.\n");
9545 return PCI_ERS_RESULT_DISCONNECT;
9546 } else
9547 phba->intr_mode = intr_mode;
9548
9549 /* Log the current active interrupt mode */
9550 lpfc_log_intr_mode(phba, phba->intr_mode);
9551
8d63f375
LV		 9552 return PCI_ERS_RESULT_RECOVERED;
9553}
9554
9555/**
da0436e9 9556 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
e59058c4 9557 * @pdev: pointer to PCI device
8d63f375 9558 *
3772a991 9559 * This routine is called from the PCI subsystem for error handling to device
da0436e9 9560 * with SLI-4 interface spec. It is called when kernel error recovery tells
3772a991
JS		 9561 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9562 * error recovery. After this call, traffic can start to flow from this device
9563 * again.
da0436e9 9564 **/
3772a991 9565static void
da0436e9 9566lpfc_io_resume_s4(struct pci_dev *pdev)
8d63f375 9567{
75baf696
JS		 9568 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9569 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9570
9571 /*
9572 * In case of slot reset, as function reset is performed through
9573 * mailbox command which needs DMA to be enabled, this operation
9574 * has to be moved to the io resume phase. Taking device offline
9575 * will perform the necessary cleanup.
9576 */
9577 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
9578 /* Perform device reset */
9579 lpfc_offline_prep(phba);
9580 lpfc_offline(phba);
9581 lpfc_sli_brdrestart(phba);
9582 /* Bring the device back online */
9583 lpfc_online(phba);
9584 }
9585
9586 /* Clean up Advanced Error Reporting (AER) if needed */
9587 if (phba->hba_flag & HBA_AER_ENABLED)
9588 pci_cleanup_aer_uncorrect_error_status(pdev);
8d63f375
LV		 9589}
9590
3772a991
JS		 9591/**
9592 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
9593 * @pdev: pointer to PCI device
9594 * @pid: pointer to PCI device identifier
9595 *
9596 * This routine is to be registered to the kernel's PCI subsystem. When an
9597 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
9598 * at PCI device-specific information of the device and driver to see if the
9599 * driver state that it can support this kind of device. If the match is
9600 * successful, the driver core invokes this routine. This routine dispatches
9601 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
9602 * do all the initialization that it needs to do to handle the HBA device
9603 * properly.
9604 *
9605 * Return code
9606 * 0 - driver can claim the device
9607 * negative value - driver can not claim the device
9608 **/
9609static int __devinit
9610lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
9611{
9612 int rc;
8fa38513 9613 struct lpfc_sli_intf intf;
3772a991 9614
28baac74 9615 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
3772a991
JS		 9616 return -ENODEV;
9617
8fa38513 9618 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
28baac74 9619 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
da0436e9 9620 rc = lpfc_pci_probe_one_s4(pdev, pid);
8fa38513 9621 else
3772a991 9622 rc = lpfc_pci_probe_one_s3(pdev, pid);
8fa38513 9623
3772a991
JS		 9624 return rc;
9625}
9626
9627/**
9628 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
9629 * @pdev: pointer to PCI device
9630 *
9631 * This routine is to be registered to the kernel's PCI subsystem. When an
9632 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
9633 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
9634 * remove routine, which will perform all the necessary cleanup for the
9635 * device to be removed from the PCI subsystem properly.
9636 **/
9637static void __devexit
9638lpfc_pci_remove_one(struct pci_dev *pdev)
9639{
9640 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9641 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9642
9643 switch (phba->pci_dev_grp) {
9644 case LPFC_PCI_DEV_LP:
9645 lpfc_pci_remove_one_s3(pdev);
9646 break;
da0436e9
JS		 9647 case LPFC_PCI_DEV_OC:
9648 lpfc_pci_remove_one_s4(pdev);
9649 break;
3772a991
JS		 9650 default:
9651 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9652 "1424 Invalid PCI device group: 0x%x\n",
9653 phba->pci_dev_grp);
9654 break;
9655 }
9656 return;
9657}
9658
9659/**
9660 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
9661 * @pdev: pointer to PCI device
9662 * @msg: power management message
9663 *
9664 * This routine is to be registered to the kernel's PCI subsystem to support
9665 * system Power Management (PM). When PM invokes this method, it dispatches
9666 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
9667 * suspend the device.
9668 *
9669 * Return code
9670 * 0 - driver suspended the device
9671 * Error otherwise
9672 **/
9673static int
9674lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
9675{
9676 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9677 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9678 int rc = -ENODEV;
9679
9680 switch (phba->pci_dev_grp) {
9681 case LPFC_PCI_DEV_LP:
9682 rc = lpfc_pci_suspend_one_s3(pdev, msg);
9683 break;
da0436e9
JS		 9684 case LPFC_PCI_DEV_OC:
9685 rc = lpfc_pci_suspend_one_s4(pdev, msg);
9686 break;
3772a991
JS		 9687 default:
9688 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9689 "1425 Invalid PCI device group: 0x%x\n",
9690 phba->pci_dev_grp);
9691 break;
9692 }
9693 return rc;
9694}
9695
9696/**
9697 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
9698 * @pdev: pointer to PCI device
9699 *
9700 * This routine is to be registered to the kernel's PCI subsystem to support
9701 * system Power Management (PM). When PM invokes this method, it dispatches
9702 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
9703 * resume the device.
9704 *
9705 * Return code
9706 * 0 - driver suspended the device
9707 * Error otherwise
9708 **/
9709static int
9710lpfc_pci_resume_one(struct pci_dev *pdev)
9711{
9712 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9713 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9714 int rc = -ENODEV;
9715
9716 switch (phba->pci_dev_grp) {
9717 case LPFC_PCI_DEV_LP:
9718 rc = lpfc_pci_resume_one_s3(pdev);
9719 break;
da0436e9
JS		 9720 case LPFC_PCI_DEV_OC:
9721 rc = lpfc_pci_resume_one_s4(pdev);
9722 break;
3772a991
JS		 9723 default:
9724 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9725 "1426 Invalid PCI device group: 0x%x\n",
9726 phba->pci_dev_grp);
9727 break;
9728 }
9729 return rc;
9730}
9731
9732/**
9733 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
9734 * @pdev: pointer to PCI device.
9735 * @state: the current PCI connection state.
9736 *
9737 * This routine is registered to the PCI subsystem for error handling. This
9738 * function is called by the PCI subsystem after a PCI bus error affecting
9739 * this device has been detected. When this routine is invoked, it dispatches
9740 * the action to the proper SLI-3 or SLI-4 device error detected handling
9741 * routine, which will perform the proper error detected operation.
9742 *
9743 * Return codes
9744 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9745 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9746 **/
9747static pci_ers_result_t
9748lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9749{
9750 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9751 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9752 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9753
9754 switch (phba->pci_dev_grp) {
9755 case LPFC_PCI_DEV_LP:
9756 rc = lpfc_io_error_detected_s3(pdev, state);
9757 break;
da0436e9
JS		 9758 case LPFC_PCI_DEV_OC:
9759 rc = lpfc_io_error_detected_s4(pdev, state);
9760 break;
3772a991
JS		 9761 default:
9762 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9763 "1427 Invalid PCI device group: 0x%x\n",
9764 phba->pci_dev_grp);
9765 break;
9766 }
9767 return rc;
9768}
9769
9770/**
9771 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
9772 * @pdev: pointer to PCI device.
9773 *
9774 * This routine is registered to the PCI subsystem for error handling. This
9775 * function is called after PCI bus has been reset to restart the PCI card
9776 * from scratch, as if from a cold-boot. When this routine is invoked, it
9777 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
9778 * routine, which will perform the proper device reset.
9779 *
9780 * Return codes
9781 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9782 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9783 **/
9784static pci_ers_result_t
9785lpfc_io_slot_reset(struct pci_dev *pdev)
9786{
9787 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9788 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9789 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9790
9791 switch (phba->pci_dev_grp) {
9792 case LPFC_PCI_DEV_LP:
9793 rc = lpfc_io_slot_reset_s3(pdev);
9794 break;
da0436e9
JS		 9795 case LPFC_PCI_DEV_OC:
9796 rc = lpfc_io_slot_reset_s4(pdev);
9797 break;
3772a991
JS		 9798 default:
9799 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9800 "1428 Invalid PCI device group: 0x%x\n",
9801 phba->pci_dev_grp);
9802 break;
9803 }
9804 return rc;
9805}
9806
9807/**
9808 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
9809 * @pdev: pointer to PCI device
9810 *
9811 * This routine is registered to the PCI subsystem for error handling. It
9812 * is called when kernel error recovery tells the lpfc driver that it is
9813 * OK to resume normal PCI operation after PCI bus error recovery. When
9814 * this routine is invoked, it dispatches the action to the proper SLI-3
9815 * or SLI-4 device io_resume routine, which will resume the device operation.
9816 **/
9817static void
9818lpfc_io_resume(struct pci_dev *pdev)
9819{
9820 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9821 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9822
9823 switch (phba->pci_dev_grp) {
9824 case LPFC_PCI_DEV_LP:
9825 lpfc_io_resume_s3(pdev);
9826 break;
da0436e9
JS		 9827 case LPFC_PCI_DEV_OC:
9828 lpfc_io_resume_s4(pdev);
9829 break;
3772a991
JS		 9830 default:
9831 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9832 "1429 Invalid PCI device group: 0x%x\n",
9833 phba->pci_dev_grp);
9834 break;
9835 }
9836 return;
9837}
9838
dea3101e 9839static struct pci_device_id lpfc_id_table[] = {
9840 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
9841 PCI_ANY_ID, PCI_ANY_ID, },
06325e74
JSEC		 9842 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
9843 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9844 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
9845 PCI_ANY_ID, PCI_ANY_ID, },
9846 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
9847 PCI_ANY_ID, PCI_ANY_ID, },
9848 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
9849 PCI_ANY_ID, PCI_ANY_ID, },
9850 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
9851 PCI_ANY_ID, PCI_ANY_ID, },
9852 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
9853 PCI_ANY_ID, PCI_ANY_ID, },
9854 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
9855 PCI_ANY_ID, PCI_ANY_ID, },
9856 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
9857 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9858 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
9859 PCI_ANY_ID, PCI_ANY_ID, },
9860 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
9861 PCI_ANY_ID, PCI_ANY_ID, },
9862 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
9863 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9864 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
9865 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9866 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
9867 PCI_ANY_ID, PCI_ANY_ID, },
9868 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
9869 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9870 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
9871 PCI_ANY_ID, PCI_ANY_ID, },
9872 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
9873 PCI_ANY_ID, PCI_ANY_ID, },
9874 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
9875 PCI_ANY_ID, PCI_ANY_ID, },
84774a4d
JS		 9876 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
9877 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9878 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
9879 PCI_ANY_ID, PCI_ANY_ID, },
9880 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
9881 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9882 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
9883 PCI_ANY_ID, PCI_ANY_ID, },
9884 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
9885 PCI_ANY_ID, PCI_ANY_ID, },
9886 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
9887 PCI_ANY_ID, PCI_ANY_ID, },
9888 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
9889 PCI_ANY_ID, PCI_ANY_ID, },
9890 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
9891 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9892 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
9893 PCI_ANY_ID, PCI_ANY_ID, },
9894 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
9895 PCI_ANY_ID, PCI_ANY_ID, },
b87eab38
JS		 9896 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
9897 PCI_ANY_ID, PCI_ANY_ID, },
9898 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
9899 PCI_ANY_ID, PCI_ANY_ID, },
9900 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
9901 PCI_ANY_ID, PCI_ANY_ID, },
9902 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
9903 PCI_ANY_ID, PCI_ANY_ID, },
9904 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
9905 PCI_ANY_ID, PCI_ANY_ID, },
9906 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
9907 PCI_ANY_ID, PCI_ANY_ID, },
84774a4d
JS		 9908 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
9909 PCI_ANY_ID, PCI_ANY_ID, },
9910 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
9911 PCI_ANY_ID, PCI_ANY_ID, },
9912 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
9913 PCI_ANY_ID, PCI_ANY_ID, },
3772a991
JS		 9914 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
9915 PCI_ANY_ID, PCI_ANY_ID, },
a747c9ce
JS		 9916 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
9917 PCI_ANY_ID, PCI_ANY_ID, },
9918 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
6669f9bb 9919 PCI_ANY_ID, PCI_ANY_ID, },
98fc5dd9
JS		 9920 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
9921 PCI_ANY_ID, PCI_ANY_ID, },
085c647c
JS		 9922 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
9923 PCI_ANY_ID, PCI_ANY_ID, },
9924 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
9925 PCI_ANY_ID, PCI_ANY_ID, },
c0c11512
JS		 9926 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
9927 PCI_ANY_ID, PCI_ANY_ID, },
9928 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
9929 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9930 { 0 }
9931};
9932
9933MODULE_DEVICE_TABLE(pci, lpfc_id_table);
9934
8d63f375
LV		 9935static struct pci_error_handlers lpfc_err_handler = {
9936 .error_detected = lpfc_io_error_detected,
9937 .slot_reset = lpfc_io_slot_reset,
9938 .resume = lpfc_io_resume,
9939};
9940
dea3101e 9941static struct pci_driver lpfc_driver = {
9942 .name = LPFC_DRIVER_NAME,
9943 .id_table = lpfc_id_table,
9944 .probe = lpfc_pci_probe_one,
9945 .remove = __devexit_p(lpfc_pci_remove_one),
3a55b532 9946 .suspend = lpfc_pci_suspend_one,
3772a991 9947 .resume = lpfc_pci_resume_one,
2e0fef85 9948 .err_handler = &lpfc_err_handler,
dea3101e 9949};
9950
e59058c4 9951/**
3621a710 9952 * lpfc_init - lpfc module initialization routine
e59058c4
JS		 9953 *
9954 * This routine is to be invoked when the lpfc module is loaded into the
9955 * kernel. The special kernel macro module_init() is used to indicate the
9956 * role of this routine to the kernel as lpfc module entry point.
9957 *
9958 * Return codes
9959 * 0 - successful
9960 * -ENOMEM - FC attach transport failed
9961 * all others - failed
9962 */
dea3101e 9963static int __init
9964lpfc_init(void)
9965{
9966 int error = 0;
9967
9968 printk(LPFC_MODULE_DESC "\n");
c44ce173 9969 printk(LPFC_COPYRIGHT "\n");
dea3101e 9970
7ee5d43e
JS		 9971 if (lpfc_enable_npiv) {
9972 lpfc_transport_functions.vport_create = lpfc_vport_create;
9973 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
9974 }
dea3101e 9975 lpfc_transport_template =
9976 fc_attach_transport(&lpfc_transport_functions);
7ee5d43e 9977 if (lpfc_transport_template == NULL)
dea3101e 9978 return -ENOMEM;
7ee5d43e 9979 if (lpfc_enable_npiv) {
7ee5d43e 9980 lpfc_vport_transport_template =
98c9ea5c
JS		 9981 fc_attach_transport(&lpfc_vport_transport_functions);
9982 if (lpfc_vport_transport_template == NULL) {
9983 fc_release_transport(lpfc_transport_template);
7ee5d43e 9984 return -ENOMEM;
98c9ea5c 9985 }
7ee5d43e 9986 }
dea3101e 9987 error = pci_register_driver(&lpfc_driver);
92d7f7b0 9988 if (error) {
dea3101e 9989 fc_release_transport(lpfc_transport_template);
d7c255b2
JS		 9990 if (lpfc_enable_npiv)
9991 fc_release_transport(lpfc_vport_transport_template);
92d7f7b0 9992 }
dea3101e 9993
9994 return error;
9995}
9996
e59058c4 9997/**
3621a710 9998 * lpfc_exit - lpfc module removal routine
e59058c4
JS		 9999 *
10000 * This routine is invoked when the lpfc module is removed from the kernel.
10001 * The special kernel macro module_exit() is used to indicate the role of
10002 * this routine to the kernel as lpfc module exit point.
10003 */
dea3101e 10004static void __exit
10005lpfc_exit(void)
10006{
10007 pci_unregister_driver(&lpfc_driver);
10008 fc_release_transport(lpfc_transport_template);
7ee5d43e
JS		 10009 if (lpfc_enable_npiv)
10010 fc_release_transport(lpfc_vport_transport_template);
81301a9b 10011 if (_dump_buf_data) {
6a9c52cf
JS		 10012 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
10013 "_dump_buf_data at 0x%p\n",
81301a9b
JS		 10014 (1L << _dump_buf_data_order), _dump_buf_data);
10015 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
10016 }
10017
10018 if (_dump_buf_dif) {
6a9c52cf
JS		 10019 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
10020 "_dump_buf_dif at 0x%p\n",
81301a9b
JS		 10021 (1L << _dump_buf_dif_order), _dump_buf_dif);
10022 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
10023 }
dea3101e 10024}
10025
10026module_init(lpfc_init);
10027module_exit(lpfc_exit);
10028MODULE_LICENSE("GPL");
10029MODULE_DESCRIPTION(LPFC_MODULE_DESC);
10030MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
10031MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
Linux kernel - Deliverables
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