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[SCSI] lpfc 8.3.25: Adapter Interface fixes and changes
[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 */
3637 memset(phba->fcf.fcf_rr_bmask, 0,
3638 sizeof(*phba->fcf.fcf_rr_bmask));
3639 /*
3640 * Handling fast FCF failover to a DEAD FCF event is
3641 * considered equalivant to receiving CVL to all vports.
fc2b989b
JS		 3642 */
3643 lpfc_sli4_perform_all_vport_cvl(phba);
38b92ef8 3644 }
da0436e9 3645 break;
70f3c073 3646 case LPFC_FIP_EVENT_TYPE_CVL:
0c9ab6f5 3647 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
6669f9bb 3648 "2718 Clear Virtual Link Received for VPI 0x%x"
70f3c073 3649 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
6d368e53 3650
6669f9bb 3651 vport = lpfc_find_vport_by_vpid(phba,
70f3c073 3652 acqe_fip->index - phba->vpi_base);
fc2b989b 3653 ndlp = lpfc_sli4_perform_vport_cvl(vport);
6669f9bb
JS		 3654 if (!ndlp)
3655 break;
695a814e
JS		 3656 active_vlink_present = 0;
3657
3658 vports = lpfc_create_vport_work_array(phba);
3659 if (vports) {
3660 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3661 i++) {
3662 if ((!(vports[i]->fc_flag &
3663 FC_VPORT_CVL_RCVD)) &&
3664 (vports[i]->port_state > LPFC_FDISC)) {
3665 active_vlink_present = 1;
3666 break;
3667 }
3668 }
3669 lpfc_destroy_vport_work_array(phba, vports);
3670 }
3671
3672 if (active_vlink_present) {
3673 /*
3674 * If there are other active VLinks present,
3675 * re-instantiate the Vlink using FDISC.
3676 */
6669f9bb 3677 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
fc2b989b 3678 shost = lpfc_shost_from_vport(vport);
6669f9bb
JS		 3679 spin_lock_irq(shost->host_lock);
3680 ndlp->nlp_flag |= NLP_DELAY_TMO;
3681 spin_unlock_irq(shost->host_lock);
695a814e
JS		 3682 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3683 vport->port_state = LPFC_FDISC;
3684 } else {
ecfd03c6
JS		 3685 /*
3686 * Otherwise, we request port to rediscover
3687 * the entire FCF table for a fast recovery
3688 * from possible case that the current FCF
0c9ab6f5
JS		 3689 * is no longer valid if we are not already
3690 * in the FCF failover process.
ecfd03c6 3691 */
fc2b989b 3692 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3693 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
fc2b989b
JS		 3694 spin_unlock_irq(&phba->hbalock);
3695 break;
3696 }
3697 /* Mark the fast failover process in progress */
0c9ab6f5 3698 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
fc2b989b 3699 spin_unlock_irq(&phba->hbalock);
0c9ab6f5
JS		 3700 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3701 LOG_DISCOVERY,
a93ff37a 3702 "2773 Start FCF failover per CVL, "
70f3c073 3703 "evt_tag:x%x\n", acqe_fip->event_tag);
ecfd03c6 3704 rc = lpfc_sli4_redisc_fcf_table(phba);
fc2b989b 3705 if (rc) {
0c9ab6f5
JS		 3706 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3707 LOG_DISCOVERY,
3708 "2774 Issue FCF rediscover "
3709 "mabilbox command failed, "
3710 "through to CVL event\n");
fc2b989b 3711 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3712 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
fc2b989b 3713 spin_unlock_irq(&phba->hbalock);
ecfd03c6
JS		 3714 /*
3715 * Last resort will be re-try on the
3716 * the current registered FCF entry.
3717 */
3718 lpfc_retry_pport_discovery(phba);
38b92ef8
JS		 3719 } else
3720 /*
3721 * Reset FCF roundrobin bmask for new
3722 * discovery.
3723 */
3724 memset(phba->fcf.fcf_rr_bmask, 0,
3725 sizeof(*phba->fcf.fcf_rr_bmask));
6669f9bb
JS		 3726 }
3727 break;
da0436e9
JS		 3728 default:
3729 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3730 "0288 Unknown FCoE event type 0x%x event tag "
70f3c073 3731 "0x%x\n", event_type, acqe_fip->event_tag);
da0436e9
JS		 3732 break;
3733 }
3734}
3735
3736/**
3737 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3738 * @phba: pointer to lpfc hba data structure.
3739 * @acqe_link: pointer to the async dcbx completion queue entry.
3740 *
3741 * This routine is to handle the SLI4 asynchronous dcbx event.
3742 **/
3743static void
3744lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3745 struct lpfc_acqe_dcbx *acqe_dcbx)
3746{
4d9ab994 3747 phba->fc_eventTag = acqe_dcbx->event_tag;
da0436e9
JS		 3748 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3749 "0290 The SLI4 DCBX asynchronous event is not "
3750 "handled yet\n");
3751}
3752
b19a061a
JS		 3753/**
3754 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3755 * @phba: pointer to lpfc hba data structure.
3756 * @acqe_link: pointer to the async grp5 completion queue entry.
3757 *
3758 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3759 * is an asynchronous notified of a logical link speed change. The Port
3760 * reports the logical link speed in units of 10Mbps.
3761 **/
3762static void
3763lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
3764 struct lpfc_acqe_grp5 *acqe_grp5)
3765{
3766 uint16_t prev_ll_spd;
3767
3768 phba->fc_eventTag = acqe_grp5->event_tag;
3769 phba->fcoe_eventtag = acqe_grp5->event_tag;
3770 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
3771 phba->sli4_hba.link_state.logical_speed =
3772 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
3773 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3774 "2789 GRP5 Async Event: Updating logical link speed "
3775 "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
3776 (phba->sli4_hba.link_state.logical_speed*10));
3777}
3778
da0436e9
JS		 3779/**
3780 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3781 * @phba: pointer to lpfc hba data structure.
3782 *
3783 * This routine is invoked by the worker thread to process all the pending
3784 * SLI4 asynchronous events.
3785 **/
3786void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3787{
3788 struct lpfc_cq_event *cq_event;
3789
3790 /* First, declare the async event has been handled */
3791 spin_lock_irq(&phba->hbalock);
3792 phba->hba_flag &= ~ASYNC_EVENT;
3793 spin_unlock_irq(&phba->hbalock);
3794 /* Now, handle all the async events */
3795 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3796 /* Get the first event from the head of the event queue */
3797 spin_lock_irq(&phba->hbalock);
3798 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3799 cq_event, struct lpfc_cq_event, list);
3800 spin_unlock_irq(&phba->hbalock);
3801 /* Process the asynchronous event */
3802 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3803 case LPFC_TRAILER_CODE_LINK:
3804 lpfc_sli4_async_link_evt(phba,
3805 &cq_event->cqe.acqe_link);
3806 break;
3807 case LPFC_TRAILER_CODE_FCOE:
70f3c073 3808 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
da0436e9
JS		 3809 break;
3810 case LPFC_TRAILER_CODE_DCBX:
3811 lpfc_sli4_async_dcbx_evt(phba,
3812 &cq_event->cqe.acqe_dcbx);
3813 break;
b19a061a
JS		 3814 case LPFC_TRAILER_CODE_GRP5:
3815 lpfc_sli4_async_grp5_evt(phba,
3816 &cq_event->cqe.acqe_grp5);
3817 break;
70f3c073
JS		 3818 case LPFC_TRAILER_CODE_FC:
3819 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
3820 break;
3821 case LPFC_TRAILER_CODE_SLI:
3822 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
3823 break;
da0436e9
JS		 3824 default:
3825 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3826 "1804 Invalid asynchrous event code: "
3827 "x%x\n", bf_get(lpfc_trailer_code,
3828 &cq_event->cqe.mcqe_cmpl));
3829 break;
3830 }
3831 /* Free the completion event processed to the free pool */
3832 lpfc_sli4_cq_event_release(phba, cq_event);
3833 }
3834}
3835
ecfd03c6
JS		 3836/**
3837 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3838 * @phba: pointer to lpfc hba data structure.
3839 *
3840 * This routine is invoked by the worker thread to process FCF table
3841 * rediscovery pending completion event.
3842 **/
3843void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3844{
3845 int rc;
3846
3847 spin_lock_irq(&phba->hbalock);
3848 /* Clear FCF rediscovery timeout event */
3849 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3850 /* Clear driver fast failover FCF record flag */
3851 phba->fcf.failover_rec.flag = 0;
3852 /* Set state for FCF fast failover */
3853 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3854 spin_unlock_irq(&phba->hbalock);
3855
3856 /* Scan FCF table from the first entry to re-discover SAN */
0c9ab6f5 3857 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
a93ff37a 3858 "2777 Start post-quiescent FCF table scan\n");
0c9ab6f5 3859 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
ecfd03c6 3860 if (rc)
0c9ab6f5
JS		 3861 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3862 "2747 Issue FCF scan read FCF mailbox "
3863 "command failed 0x%x\n", rc);
ecfd03c6
JS		 3864}
3865
da0436e9
JS		 3866/**
3867 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3868 * @phba: pointer to lpfc hba data structure.
3869 * @dev_grp: The HBA PCI-Device group number.
3870 *
3871 * This routine is invoked to set up the per HBA PCI-Device group function
3872 * API jump table entries.
3873 *
3874 * Return: 0 if success, otherwise -ENODEV
3875 **/
3876int
3877lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3878{
3879 int rc;
3880
3881 /* Set up lpfc PCI-device group */
3882 phba->pci_dev_grp = dev_grp;
3883
3884 /* The LPFC_PCI_DEV_OC uses SLI4 */
3885 if (dev_grp == LPFC_PCI_DEV_OC)
3886 phba->sli_rev = LPFC_SLI_REV4;
3887
3888 /* Set up device INIT API function jump table */
3889 rc = lpfc_init_api_table_setup(phba, dev_grp);
3890 if (rc)
3891 return -ENODEV;
3892 /* Set up SCSI API function jump table */
3893 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3894 if (rc)
3895 return -ENODEV;
3896 /* Set up SLI API function jump table */
3897 rc = lpfc_sli_api_table_setup(phba, dev_grp);
3898 if (rc)
3899 return -ENODEV;
3900 /* Set up MBOX API function jump table */
3901 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3902 if (rc)
3903 return -ENODEV;
3904
3905 return 0;
5b75da2f
JS		 3906}
3907
3908/**
3621a710 3909 * lpfc_log_intr_mode - Log the active interrupt mode
5b75da2f
JS		 3910 * @phba: pointer to lpfc hba data structure.
3911 * @intr_mode: active interrupt mode adopted.
3912 *
3913 * This routine it invoked to log the currently used active interrupt mode
3914 * to the device.
3772a991
JS		 3915 **/
3916static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5b75da2f
JS		 3917{
3918 switch (intr_mode) {
3919 case 0:
3920 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3921 "0470 Enable INTx interrupt mode.\n");
3922 break;
3923 case 1:
3924 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3925 "0481 Enabled MSI interrupt mode.\n");
3926 break;
3927 case 2:
3928 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3929 "0480 Enabled MSI-X interrupt mode.\n");
3930 break;
3931 default:
3932 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3933 "0482 Illegal interrupt mode.\n");
3934 break;
3935 }
3936 return;
3937}
3938
5b75da2f 3939/**
3772a991 3940 * lpfc_enable_pci_dev - Enable a generic PCI device.
5b75da2f
JS		 3941 * @phba: pointer to lpfc hba data structure.
3942 *
3772a991
JS		 3943 * This routine is invoked to enable the PCI device that is common to all
3944 * PCI devices.
5b75da2f
JS		 3945 *
3946 * Return codes
af901ca1 3947 * 0 - successful
3772a991 3948 * other values - error
5b75da2f 3949 **/
3772a991
JS		 3950static int
3951lpfc_enable_pci_dev(struct lpfc_hba *phba)
5b75da2f 3952{
3772a991
JS		 3953 struct pci_dev *pdev;
3954 int bars;
5b75da2f 3955
3772a991
JS		 3956 /* Obtain PCI device reference */
3957 if (!phba->pcidev)
3958 goto out_error;
3959 else
3960 pdev = phba->pcidev;
3961 /* Select PCI BARs */
3962 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3963 /* Enable PCI device */
3964 if (pci_enable_device_mem(pdev))
3965 goto out_error;
3966 /* Request PCI resource for the device */
3967 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3968 goto out_disable_device;
3969 /* Set up device as PCI master and save state for EEH */
3970 pci_set_master(pdev);
3971 pci_try_set_mwi(pdev);
3972 pci_save_state(pdev);
5b75da2f 3973
0558056c
JS		 3974 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
3975 if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
3976 pdev->needs_freset = 1;
3977
3772a991 3978 return 0;
5b75da2f 3979
3772a991
JS		 3980out_disable_device:
3981 pci_disable_device(pdev);
3982out_error:
3983 return -ENODEV;
5b75da2f
JS		 3984}
3985
3986/**
3772a991 3987 * lpfc_disable_pci_dev - Disable a generic PCI device.
5b75da2f
JS		 3988 * @phba: pointer to lpfc hba data structure.
3989 *
3772a991
JS		 3990 * This routine is invoked to disable the PCI device that is common to all
3991 * PCI devices.
5b75da2f
JS		 3992 **/
3993static void
3772a991 3994lpfc_disable_pci_dev(struct lpfc_hba *phba)
5b75da2f 3995{
3772a991
JS		 3996 struct pci_dev *pdev;
3997 int bars;
5b75da2f 3998
3772a991
JS		 3999 /* Obtain PCI device reference */
4000 if (!phba->pcidev)
4001 return;
4002 else
4003 pdev = phba->pcidev;
4004 /* Select PCI BARs */
4005 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4006 /* Release PCI resource and disable PCI device */
4007 pci_release_selected_regions(pdev, bars);
4008 pci_disable_device(pdev);
4009 /* Null out PCI private reference to driver */
4010 pci_set_drvdata(pdev, NULL);
5b75da2f
JS		 4011
4012 return;
4013}
4014
e59058c4 4015/**
3772a991
JS		 4016 * lpfc_reset_hba - Reset a hba
4017 * @phba: pointer to lpfc hba data structure.
e59058c4 4018 *
3772a991
JS		 4019 * This routine is invoked to reset a hba device. It brings the HBA
4020 * offline, performs a board restart, and then brings the board back
4021 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4022 * on outstanding mailbox commands.
e59058c4 4023 **/
3772a991
JS		 4024void
4025lpfc_reset_hba(struct lpfc_hba *phba)
dea3101e 4026{
3772a991
JS		 4027 /* If resets are disabled then set error state and return. */
4028 if (!phba->cfg_enable_hba_reset) {
4029 phba->link_state = LPFC_HBA_ERROR;
4030 return;
4031 }
4032 lpfc_offline_prep(phba);
4033 lpfc_offline(phba);
4034 lpfc_sli_brdrestart(phba);
4035 lpfc_online(phba);
4036 lpfc_unblock_mgmt_io(phba);
4037}
dea3101e 4038
912e3acd
JS		 4039/**
4040 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4041 * @phba: pointer to lpfc hba data structure.
4042 * @nr_vfn: number of virtual functions to be enabled.
4043 *
4044 * This function enables the PCI SR-IOV virtual functions to a physical
4045 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4046 * enable the number of virtual functions to the physical function. As
4047 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4048 * API call does not considered as an error condition for most of the device.
4049 **/
4050int
4051lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4052{
4053 struct pci_dev *pdev = phba->pcidev;
4054 int rc;
4055
4056 rc = pci_enable_sriov(pdev, nr_vfn);
4057 if (rc) {
4058 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4059 "2806 Failed to enable sriov on this device "
4060 "with vfn number nr_vf:%d, rc:%d\n",
4061 nr_vfn, rc);
4062 } else
4063 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4064 "2807 Successful enable sriov on this device "
4065 "with vfn number nr_vf:%d\n", nr_vfn);
4066 return rc;
4067}
4068
3772a991
JS		 4069/**
4070 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4071 * @phba: pointer to lpfc hba data structure.
4072 *
4073 * This routine is invoked to set up the driver internal resources specific to
4074 * support the SLI-3 HBA device it attached to.
4075 *
4076 * Return codes
af901ca1 4077 * 0 - successful
3772a991
JS		 4078 * other values - error
4079 **/
4080static int
4081lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4082{
4083 struct lpfc_sli *psli;
912e3acd 4084 int rc;
dea3101e 4085
2e0fef85 4086 /*
3772a991 4087 * Initialize timers used by driver
2e0fef85 4088 */
dea3101e 4089
3772a991 4090 /* Heartbeat timer */
858c9f6c
JS		 4091 init_timer(&phba->hb_tmofunc);
4092 phba->hb_tmofunc.function = lpfc_hb_timeout;
4093 phba->hb_tmofunc.data = (unsigned long)phba;
4094
dea3101e 4095 psli = &phba->sli;
3772a991 4096 /* MBOX heartbeat timer */
dea3101e 4097 init_timer(&psli->mbox_tmo);
4098 psli->mbox_tmo.function = lpfc_mbox_timeout;
2e0fef85 4099 psli->mbox_tmo.data = (unsigned long) phba;
3772a991 4100 /* FCP polling mode timer */
875fbdfe
JSEC		 4101 init_timer(&phba->fcp_poll_timer);
4102 phba->fcp_poll_timer.function = lpfc_poll_timeout;
2e0fef85 4103 phba->fcp_poll_timer.data = (unsigned long) phba;
3772a991 4104 /* Fabric block timer */
92d7f7b0
JS		 4105 init_timer(&phba->fabric_block_timer);
4106 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4107 phba->fabric_block_timer.data = (unsigned long) phba;
3772a991 4108 /* EA polling mode timer */
9399627f
JS		 4109 init_timer(&phba->eratt_poll);
4110 phba->eratt_poll.function = lpfc_poll_eratt;
4111 phba->eratt_poll.data = (unsigned long) phba;
dea3101e 4112
3772a991
JS		 4113 /* Host attention work mask setup */
4114 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4115 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
dea3101e 4116
3772a991
JS		 4117 /* Get all the module params for configuring this host */
4118 lpfc_get_cfgparam(phba);
49198b37
JS		 4119 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4120 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4121 /* check for menlo minimum sg count */
4122 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4123 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4124 }
4125
dea3101e 4126 /*
3772a991
JS		 4127 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4128 * used to create the sg_dma_buf_pool must be dynamically calculated.
4129 * 2 segments are added since the IOCB needs a command and response bde.
dea3101e 4130 */
3772a991
JS		 4131 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4132 sizeof(struct fcp_rsp) +
4133 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4134
4135 if (phba->cfg_enable_bg) {
4136 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4137 phba->cfg_sg_dma_buf_size +=
4138 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
901a920f 4139 }
dea3101e 4140
3772a991
JS		 4141 /* Also reinitialize the host templates with new values. */
4142 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4143 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
dea3101e 4144
3772a991
JS		 4145 phba->max_vpi = LPFC_MAX_VPI;
4146 /* This will be set to correct value after config_port mbox */
4147 phba->max_vports = 0;
dea3101e 4148
3772a991
JS		 4149 /*
4150 * Initialize the SLI Layer to run with lpfc HBAs.
4151 */
4152 lpfc_sli_setup(phba);
4153 lpfc_sli_queue_setup(phba);
ed957684 4154
3772a991
JS		 4155 /* Allocate device driver memory */
4156 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4157 return -ENOMEM;
51ef4c26 4158
912e3acd
JS		 4159 /*
4160 * Enable sr-iov virtual functions if supported and configured
4161 * through the module parameter.
4162 */
4163 if (phba->cfg_sriov_nr_virtfn > 0) {
4164 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4165 phba->cfg_sriov_nr_virtfn);
4166 if (rc) {
4167 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4168 "2808 Requested number of SR-IOV "
4169 "virtual functions (%d) is not "
4170 "supported\n",
4171 phba->cfg_sriov_nr_virtfn);
4172 phba->cfg_sriov_nr_virtfn = 0;
4173 }
4174 }
4175
3772a991
JS		 4176 return 0;
4177}
ed957684 4178
3772a991
JS		 4179/**
4180 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4181 * @phba: pointer to lpfc hba data structure.
4182 *
4183 * This routine is invoked to unset the driver internal resources set up
4184 * specific for supporting the SLI-3 HBA device it attached to.
4185 **/
4186static void
4187lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4188{
4189 /* Free device driver memory allocated */
4190 lpfc_mem_free_all(phba);
3163f725 4191
3772a991
JS		 4192 return;
4193}
dea3101e 4194
3772a991 4195/**
da0436e9 4196 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3772a991
JS		 4197 * @phba: pointer to lpfc hba data structure.
4198 *
da0436e9
JS		 4199 * This routine is invoked to set up the driver internal resources specific to
4200 * support the SLI-4 HBA device it attached to.
3772a991
JS		 4201 *
4202 * Return codes
af901ca1 4203 * 0 - successful
da0436e9 4204 * other values - error
3772a991
JS		 4205 **/
4206static int
da0436e9 4207lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3772a991 4208{
da0436e9 4209 struct lpfc_sli *psli;
28baac74
JS		 4210 LPFC_MBOXQ_t *mboxq;
4211 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
4212 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4213 struct lpfc_mqe *mqe;
085c647c 4214 int longs, sli_family;
da0436e9
JS		 4215
4216 /* Before proceed, wait for POST done and device ready */
4217 rc = lpfc_sli4_post_status_check(phba);
4218 if (rc)
4219 return -ENODEV;
4220
3772a991 4221 /*
da0436e9 4222 * Initialize timers used by driver
3772a991 4223 */
3772a991 4224
da0436e9
JS		 4225 /* Heartbeat timer */
4226 init_timer(&phba->hb_tmofunc);
4227 phba->hb_tmofunc.function = lpfc_hb_timeout;
4228 phba->hb_tmofunc.data = (unsigned long)phba;
19ca7609
JS		 4229 init_timer(&phba->rrq_tmr);
4230 phba->rrq_tmr.function = lpfc_rrq_timeout;
4231 phba->rrq_tmr.data = (unsigned long)phba;
3772a991 4232
da0436e9
JS		 4233 psli = &phba->sli;
4234 /* MBOX heartbeat timer */
4235 init_timer(&psli->mbox_tmo);
4236 psli->mbox_tmo.function = lpfc_mbox_timeout;
4237 psli->mbox_tmo.data = (unsigned long) phba;
4238 /* Fabric block timer */
4239 init_timer(&phba->fabric_block_timer);
4240 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4241 phba->fabric_block_timer.data = (unsigned long) phba;
4242 /* EA polling mode timer */
4243 init_timer(&phba->eratt_poll);
4244 phba->eratt_poll.function = lpfc_poll_eratt;
4245 phba->eratt_poll.data = (unsigned long) phba;
ecfd03c6
JS		 4246 /* FCF rediscover timer */
4247 init_timer(&phba->fcf.redisc_wait);
4248 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4249 phba->fcf.redisc_wait.data = (unsigned long)phba;
4250
7ad20aa9
JS		 4251 /*
4252 * Control structure for handling external multi-buffer mailbox
4253 * command pass-through.
4254 */
4255 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
4256 sizeof(struct lpfc_mbox_ext_buf_ctx));
4257 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4258
da0436e9
JS		 4259 /*
4260 * We need to do a READ_CONFIG mailbox command here before
4261 * calling lpfc_get_cfgparam. For VFs this will report the
4262 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4263 * All of the resources allocated
4264 * for this Port are tied to these values.
4265 */
4266 /* Get all the module params for configuring this host */
4267 lpfc_get_cfgparam(phba);
4268 phba->max_vpi = LPFC_MAX_VPI;
4269 /* This will be set to correct value after the read_config mbox */
4270 phba->max_vports = 0;
3772a991 4271
da0436e9
JS		 4272 /* Program the default value of vlan_id and fc_map */
4273 phba->valid_vlan = 0;
4274 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4275 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4276 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
3772a991 4277
da0436e9
JS		 4278 /*
4279 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4280 * used to create the sg_dma_buf_pool must be dynamically calculated.
4281 * 2 segments are added since the IOCB needs a command and response bde.
4282 * To insure that the scsi sgl does not cross a 4k page boundary only
28baac74 4283 * sgl sizes of must be a power of 2.
da0436e9 4284 */
28baac74
JS		 4285 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4286 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
085c647c
JS		 4287
4288 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
4289 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4290 switch (sli_family) {
4291 case LPFC_SLI_INTF_FAMILY_BE2:
4292 case LPFC_SLI_INTF_FAMILY_BE3:
4293 /* There is a single hint for BE - 2 pages per BPL. */
4294 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
4295 LPFC_SLI_INTF_SLI_HINT1_1)
4296 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4297 break;
4298 case LPFC_SLI_INTF_FAMILY_LNCR_A0:
4299 case LPFC_SLI_INTF_FAMILY_LNCR_B0:
4300 default:
4301 break;
4302 }
28baac74
JS		 4303 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4304 dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4305 dma_buf_size = dma_buf_size << 1)
4306 ;
4307 if (dma_buf_size == max_buf_size)
4308 phba->cfg_sg_seg_cnt = (dma_buf_size -
4309 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4310 (2 * sizeof(struct sli4_sge))) /
4311 sizeof(struct sli4_sge);
4312 phba->cfg_sg_dma_buf_size = dma_buf_size;
3772a991 4313
da0436e9
JS		 4314 /* Initialize buffer queue management fields */
4315 hbq_count = lpfc_sli_hbq_count();
4316 for (i = 0; i < hbq_count; ++i)
4317 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4318 INIT_LIST_HEAD(&phba->rb_pend_list);
4319 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4320 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
3772a991 4321
da0436e9
JS		 4322 /*
4323 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4324 */
4325 /* Initialize the Abort scsi buffer list used by driver */
4326 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4327 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4328 /* This abort list used by worker thread */
4329 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
3772a991 4330
da0436e9 4331 /*
6d368e53 4332 * Initialize driver internal slow-path work queues
da0436e9 4333 */
3772a991 4334
da0436e9
JS		 4335 /* Driver internel slow-path CQ Event pool */
4336 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4337 /* Response IOCB work queue list */
45ed1190 4338 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
da0436e9
JS		 4339 /* Asynchronous event CQ Event work queue list */
4340 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4341 /* Fast-path XRI aborted CQ Event work queue list */
4342 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4343 /* Slow-path XRI aborted CQ Event work queue list */
4344 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4345 /* Receive queue CQ Event work queue list */
4346 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4347
6d368e53
JS		 4348 /* Initialize extent block lists. */
4349 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
4350 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
4351 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
4352 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
4353
da0436e9
JS		 4354 /* Initialize the driver internal SLI layer lists. */
4355 lpfc_sli_setup(phba);
4356 lpfc_sli_queue_setup(phba);
3772a991 4357
da0436e9
JS		 4358 /* Allocate device driver memory */
4359 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4360 if (rc)
4361 return -ENOMEM;
4362
2fcee4bf
JS		 4363 /* IF Type 2 ports get initialized now. */
4364 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4365 LPFC_SLI_INTF_IF_TYPE_2) {
4366 rc = lpfc_pci_function_reset(phba);
4367 if (unlikely(rc))
4368 return -ENODEV;
4369 }
4370
da0436e9
JS		 4371 /* Create the bootstrap mailbox command */
4372 rc = lpfc_create_bootstrap_mbox(phba);
4373 if (unlikely(rc))
4374 goto out_free_mem;
4375
4376 /* Set up the host's endian order with the device. */
4377 rc = lpfc_setup_endian_order(phba);
4378 if (unlikely(rc))
4379 goto out_free_bsmbx;
4380
4381 /* Set up the hba's configuration parameters. */
4382 rc = lpfc_sli4_read_config(phba);
4383 if (unlikely(rc))
4384 goto out_free_bsmbx;
4385
2fcee4bf
JS		 4386 /* IF Type 0 ports get initialized now. */
4387 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4388 LPFC_SLI_INTF_IF_TYPE_0) {
4389 rc = lpfc_pci_function_reset(phba);
4390 if (unlikely(rc))
4391 goto out_free_bsmbx;
4392 }
da0436e9 4393
cb5172ea
JS		 4394 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4395 GFP_KERNEL);
4396 if (!mboxq) {
4397 rc = -ENOMEM;
4398 goto out_free_bsmbx;
4399 }
4400
fedd3b7b 4401 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
cb5172ea
JS		 4402 lpfc_supported_pages(mboxq);
4403 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
fedd3b7b
JS		 4404 if (!rc) {
4405 mqe = &mboxq->u.mqe;
4406 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4407 LPFC_MAX_SUPPORTED_PAGES);
4408 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4409 switch (pn_page[i]) {
4410 case LPFC_SLI4_PARAMETERS:
4411 phba->sli4_hba.pc_sli4_params.supported = 1;
4412 break;
4413 default:
4414 break;
4415 }
4416 }
4417 /* Read the port's SLI4 Parameters capabilities if supported. */
4418 if (phba->sli4_hba.pc_sli4_params.supported)
4419 rc = lpfc_pc_sli4_params_get(phba, mboxq);
4420 if (rc) {
4421 mempool_free(mboxq, phba->mbox_mem_pool);
4422 rc = -EIO;
4423 goto out_free_bsmbx;
cb5172ea
JS		 4424 }
4425 }
fedd3b7b
JS		 4426 /*
4427 * Get sli4 parameters that override parameters from Port capabilities.
6d368e53
JS		 4428 * If this call fails, it isn't critical unless the SLI4 parameters come
4429 * back in conflict.
fedd3b7b 4430 */
6d368e53
JS		 4431 rc = lpfc_get_sli4_parameters(phba, mboxq);
4432 if (rc) {
4433 if (phba->sli4_hba.extents_in_use &&
4434 phba->sli4_hba.rpi_hdrs_in_use) {
4435 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4436 "2999 Unsupported SLI4 Parameters "
4437 "Extents and RPI headers enabled.\n");
4438 goto out_free_bsmbx;
4439 }
4440 }
cb5172ea 4441 mempool_free(mboxq, phba->mbox_mem_pool);
da0436e9
JS		 4442 /* Create all the SLI4 queues */
4443 rc = lpfc_sli4_queue_create(phba);
4444 if (rc)
4445 goto out_free_bsmbx;
4446
4447 /* Create driver internal CQE event pool */
4448 rc = lpfc_sli4_cq_event_pool_create(phba);
4449 if (rc)
4450 goto out_destroy_queue;
4451
4452 /* Initialize and populate the iocb list per host */
4453 rc = lpfc_init_sgl_list(phba);
4454 if (rc) {
4455 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4456 "1400 Failed to initialize sgl list.\n");
4457 goto out_destroy_cq_event_pool;
4458 }
4459 rc = lpfc_init_active_sgl_array(phba);
4460 if (rc) {
4461 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4462 "1430 Failed to initialize sgl list.\n");
4463 goto out_free_sgl_list;
4464 }
da0436e9
JS		 4465 rc = lpfc_sli4_init_rpi_hdrs(phba);
4466 if (rc) {
4467 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4468 "1432 Failed to initialize rpi headers.\n");
4469 goto out_free_active_sgl;
4470 }
4471
a93ff37a 4472 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
0c9ab6f5
JS		 4473 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4474 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4475 GFP_KERNEL);
4476 if (!phba->fcf.fcf_rr_bmask) {
4477 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4478 "2759 Failed allocate memory for FCF round "
4479 "robin failover bmask\n");
0558056c 4480 rc = -ENOMEM;
0c9ab6f5
JS		 4481 goto out_remove_rpi_hdrs;
4482 }
4483
da0436e9
JS		 4484 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4485 phba->cfg_fcp_eq_count), GFP_KERNEL);
4486 if (!phba->sli4_hba.fcp_eq_hdl) {
4487 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4488 "2572 Failed allocate memory for fast-path "
4489 "per-EQ handle array\n");
0558056c 4490 rc = -ENOMEM;
0c9ab6f5 4491 goto out_free_fcf_rr_bmask;
da0436e9
JS		 4492 }
4493
4494 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4495 phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4496 if (!phba->sli4_hba.msix_entries) {
4497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4498 "2573 Failed allocate memory for msi-x "
4499 "interrupt vector entries\n");
0558056c 4500 rc = -ENOMEM;
da0436e9
JS		 4501 goto out_free_fcp_eq_hdl;
4502 }
4503
912e3acd
JS		 4504 /*
4505 * Enable sr-iov virtual functions if supported and configured
4506 * through the module parameter.
4507 */
4508 if (phba->cfg_sriov_nr_virtfn > 0) {
4509 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4510 phba->cfg_sriov_nr_virtfn);
4511 if (rc) {
4512 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4513 "3020 Requested number of SR-IOV "
4514 "virtual functions (%d) is not "
4515 "supported\n",
4516 phba->cfg_sriov_nr_virtfn);
4517 phba->cfg_sriov_nr_virtfn = 0;
4518 }
4519 }
4520
da0436e9
JS		 4521 return rc;
4522
4523out_free_fcp_eq_hdl:
4524 kfree(phba->sli4_hba.fcp_eq_hdl);
0c9ab6f5
JS		 4525out_free_fcf_rr_bmask:
4526 kfree(phba->fcf.fcf_rr_bmask);
da0436e9
JS		 4527out_remove_rpi_hdrs:
4528 lpfc_sli4_remove_rpi_hdrs(phba);
4529out_free_active_sgl:
4530 lpfc_free_active_sgl(phba);
4531out_free_sgl_list:
4532 lpfc_free_sgl_list(phba);
4533out_destroy_cq_event_pool:
4534 lpfc_sli4_cq_event_pool_destroy(phba);
4535out_destroy_queue:
4536 lpfc_sli4_queue_destroy(phba);
4537out_free_bsmbx:
4538 lpfc_destroy_bootstrap_mbox(phba);
4539out_free_mem:
4540 lpfc_mem_free(phba);
4541 return rc;
4542}
4543
4544/**
4545 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4546 * @phba: pointer to lpfc hba data structure.
4547 *
4548 * This routine is invoked to unset the driver internal resources set up
4549 * specific for supporting the SLI-4 HBA device it attached to.
4550 **/
4551static void
4552lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4553{
4554 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4555
da0436e9
JS		 4556 /* Free memory allocated for msi-x interrupt vector entries */
4557 kfree(phba->sli4_hba.msix_entries);
4558
4559 /* Free memory allocated for fast-path work queue handles */
4560 kfree(phba->sli4_hba.fcp_eq_hdl);
4561
4562 /* Free the allocated rpi headers. */
4563 lpfc_sli4_remove_rpi_hdrs(phba);
d11e31dd 4564 lpfc_sli4_remove_rpis(phba);
da0436e9 4565
0c9ab6f5
JS		 4566 /* Free eligible FCF index bmask */
4567 kfree(phba->fcf.fcf_rr_bmask);
4568
da0436e9
JS		 4569 /* Free the ELS sgl list */
4570 lpfc_free_active_sgl(phba);
4571 lpfc_free_sgl_list(phba);
4572
4573 /* Free the SCSI sgl management array */
4574 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4575
4576 /* Free the SLI4 queues */
4577 lpfc_sli4_queue_destroy(phba);
4578
4579 /* Free the completion queue EQ event pool */
4580 lpfc_sli4_cq_event_release_all(phba);
4581 lpfc_sli4_cq_event_pool_destroy(phba);
4582
6d368e53
JS		 4583 /* Release resource identifiers. */
4584 lpfc_sli4_dealloc_resource_identifiers(phba);
4585
da0436e9
JS		 4586 /* Free the bsmbx region. */
4587 lpfc_destroy_bootstrap_mbox(phba);
4588
4589 /* Free the SLI Layer memory with SLI4 HBAs */
4590 lpfc_mem_free_all(phba);
4591
4592 /* Free the current connect table */
4593 list_for_each_entry_safe(conn_entry, next_conn_entry,
4d9ab994
JS		 4594 &phba->fcf_conn_rec_list, list) {
4595 list_del_init(&conn_entry->list);
da0436e9 4596 kfree(conn_entry);
4d9ab994 4597 }
da0436e9
JS		 4598
4599 return;
4600}
4601
4602/**
25985edc 4603 * lpfc_init_api_table_setup - Set up init api function jump table
da0436e9
JS		 4604 * @phba: The hba struct for which this call is being executed.
4605 * @dev_grp: The HBA PCI-Device group number.
4606 *
4607 * This routine sets up the device INIT interface API function jump table
4608 * in @phba struct.
4609 *
4610 * Returns: 0 - success, -ENODEV - failure.
4611 **/
4612int
4613lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4614{
84d1b006
JS		 4615 phba->lpfc_hba_init_link = lpfc_hba_init_link;
4616 phba->lpfc_hba_down_link = lpfc_hba_down_link;
7f86059a 4617 phba->lpfc_selective_reset = lpfc_selective_reset;
da0436e9
JS		 4618 switch (dev_grp) {
4619 case LPFC_PCI_DEV_LP:
4620 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4621 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4622 phba->lpfc_stop_port = lpfc_stop_port_s3;
4623 break;
4624 case LPFC_PCI_DEV_OC:
4625 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4626 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4627 phba->lpfc_stop_port = lpfc_stop_port_s4;
4628 break;
4629 default:
4630 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4631 "1431 Invalid HBA PCI-device group: 0x%x\n",
4632 dev_grp);
4633 return -ENODEV;
4634 break;
4635 }
4636 return 0;
4637}
4638
4639/**
4640 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4641 * @phba: pointer to lpfc hba data structure.
4642 *
4643 * This routine is invoked to set up the driver internal resources before the
4644 * device specific resource setup to support the HBA device it attached to.
4645 *
4646 * Return codes
af901ca1 4647 * 0 - successful
da0436e9
JS		 4648 * other values - error
4649 **/
4650static int
4651lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4652{
4653 /*
4654 * Driver resources common to all SLI revisions
4655 */
4656 atomic_set(&phba->fast_event_count, 0);
4657 spin_lock_init(&phba->hbalock);
4658
4659 /* Initialize ndlp management spinlock */
4660 spin_lock_init(&phba->ndlp_lock);
4661
4662 INIT_LIST_HEAD(&phba->port_list);
4663 INIT_LIST_HEAD(&phba->work_list);
4664 init_waitqueue_head(&phba->wait_4_mlo_m_q);
4665
4666 /* Initialize the wait queue head for the kernel thread */
4667 init_waitqueue_head(&phba->work_waitq);
4668
4669 /* Initialize the scsi buffer list used by driver for scsi IO */
4670 spin_lock_init(&phba->scsi_buf_list_lock);
4671 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4672
4673 /* Initialize the fabric iocb list */
4674 INIT_LIST_HEAD(&phba->fabric_iocb_list);
4675
4676 /* Initialize list to save ELS buffers */
4677 INIT_LIST_HEAD(&phba->elsbuf);
4678
4679 /* Initialize FCF connection rec list */
4680 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4681
4682 return 0;
4683}
4684
4685/**
4686 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4687 * @phba: pointer to lpfc hba data structure.
4688 *
4689 * This routine is invoked to set up the driver internal resources after the
4690 * device specific resource setup to support the HBA device it attached to.
4691 *
4692 * Return codes
af901ca1 4693 * 0 - successful
da0436e9
JS		 4694 * other values - error
4695 **/
4696static int
4697lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4698{
4699 int error;
4700
4701 /* Startup the kernel thread for this host adapter. */
4702 phba->worker_thread = kthread_run(lpfc_do_work, phba,
4703 "lpfc_worker_%d", phba->brd_no);
4704 if (IS_ERR(phba->worker_thread)) {
4705 error = PTR_ERR(phba->worker_thread);
4706 return error;
3772a991
JS		 4707 }
4708
4709 return 0;
4710}
4711
4712/**
4713 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4714 * @phba: pointer to lpfc hba data structure.
4715 *
4716 * This routine is invoked to unset the driver internal resources set up after
4717 * the device specific resource setup for supporting the HBA device it
4718 * attached to.
4719 **/
4720static void
4721lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4722{
4723 /* Stop kernel worker thread */
4724 kthread_stop(phba->worker_thread);
4725}
4726
4727/**
4728 * lpfc_free_iocb_list - Free iocb list.
4729 * @phba: pointer to lpfc hba data structure.
4730 *
4731 * This routine is invoked to free the driver's IOCB list and memory.
4732 **/
4733static void
4734lpfc_free_iocb_list(struct lpfc_hba *phba)
4735{
4736 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4737
4738 spin_lock_irq(&phba->hbalock);
4739 list_for_each_entry_safe(iocbq_entry, iocbq_next,
4740 &phba->lpfc_iocb_list, list) {
4741 list_del(&iocbq_entry->list);
4742 kfree(iocbq_entry);
4743 phba->total_iocbq_bufs--;
98c9ea5c 4744 }
3772a991
JS		 4745 spin_unlock_irq(&phba->hbalock);
4746
4747 return;
4748}
4749
4750/**
4751 * lpfc_init_iocb_list - Allocate and initialize iocb list.
4752 * @phba: pointer to lpfc hba data structure.
4753 *
4754 * This routine is invoked to allocate and initizlize the driver's IOCB
4755 * list and set up the IOCB tag array accordingly.
4756 *
4757 * Return codes
af901ca1 4758 * 0 - successful
3772a991
JS		 4759 * other values - error
4760 **/
4761static int
4762lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4763{
4764 struct lpfc_iocbq *iocbq_entry = NULL;
4765 uint16_t iotag;
4766 int i;
dea3101e 4767
4768 /* Initialize and populate the iocb list per host. */
4769 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
3772a991 4770 for (i = 0; i < iocb_count; i++) {
dd00cc48 4771 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
dea3101e 4772 if (iocbq_entry == NULL) {
4773 printk(KERN_ERR "%s: only allocated %d iocbs of "
4774 "expected %d count. Unloading driver.\n",
cadbd4a5 4775 __func__, i, LPFC_IOCB_LIST_CNT);
dea3101e 4776 goto out_free_iocbq;
4777 }
4778
604a3e30
JB		 4779 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4780 if (iotag == 0) {
3772a991 4781 kfree(iocbq_entry);
604a3e30 4782 printk(KERN_ERR "%s: failed to allocate IOTAG. "
3772a991 4783 "Unloading driver.\n", __func__);
604a3e30
JB		 4784 goto out_free_iocbq;
4785 }
6d368e53 4786 iocbq_entry->sli4_lxritag = NO_XRI;
3772a991 4787 iocbq_entry->sli4_xritag = NO_XRI;
2e0fef85
JS		 4788
4789 spin_lock_irq(&phba->hbalock);
dea3101e 4790 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4791 phba->total_iocbq_bufs++;
2e0fef85 4792 spin_unlock_irq(&phba->hbalock);
dea3101e 4793 }
4794
3772a991 4795 return 0;
dea3101e 4796
3772a991
JS		 4797out_free_iocbq:
4798 lpfc_free_iocb_list(phba);
dea3101e 4799
3772a991
JS		 4800 return -ENOMEM;
4801}
5e9d9b82 4802
3772a991 4803/**
da0436e9
JS		 4804 * lpfc_free_sgl_list - Free sgl list.
4805 * @phba: pointer to lpfc hba data structure.
3772a991 4806 *
da0436e9 4807 * This routine is invoked to free the driver's sgl list and memory.
3772a991 4808 **/
da0436e9
JS		 4809static void
4810lpfc_free_sgl_list(struct lpfc_hba *phba)
3772a991 4811{
da0436e9
JS		 4812 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
4813 LIST_HEAD(sglq_list);
dea3101e 4814
da0436e9
JS		 4815 spin_lock_irq(&phba->hbalock);
4816 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
4817 spin_unlock_irq(&phba->hbalock);
dea3101e 4818
da0436e9
JS		 4819 list_for_each_entry_safe(sglq_entry, sglq_next,
4820 &sglq_list, list) {
4821 list_del(&sglq_entry->list);
4822 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
4823 kfree(sglq_entry);
4824 phba->sli4_hba.total_sglq_bufs--;
4825 }
da0436e9
JS		 4826 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4827}
92d7f7b0 4828
da0436e9
JS		 4829/**
4830 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4831 * @phba: pointer to lpfc hba data structure.
4832 *
4833 * This routine is invoked to allocate the driver's active sgl memory.
4834 * This array will hold the sglq_entry's for active IOs.
4835 **/
4836static int
4837lpfc_init_active_sgl_array(struct lpfc_hba *phba)
4838{
4839 int size;
4840 size = sizeof(struct lpfc_sglq *);
4841 size *= phba->sli4_hba.max_cfg_param.max_xri;
4842
4843 phba->sli4_hba.lpfc_sglq_active_list =
4844 kzalloc(size, GFP_KERNEL);
4845 if (!phba->sli4_hba.lpfc_sglq_active_list)
4846 return -ENOMEM;
4847 return 0;
3772a991
JS		 4848}
4849
4850/**
da0436e9 4851 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
3772a991
JS		 4852 * @phba: pointer to lpfc hba data structure.
4853 *
da0436e9
JS		 4854 * This routine is invoked to walk through the array of active sglq entries
4855 * and free all of the resources.
4856 * This is just a place holder for now.
3772a991
JS		 4857 **/
4858static void
da0436e9 4859lpfc_free_active_sgl(struct lpfc_hba *phba)
3772a991 4860{
da0436e9 4861 kfree(phba->sli4_hba.lpfc_sglq_active_list);
3772a991
JS		 4862}
4863
4864/**
da0436e9 4865 * lpfc_init_sgl_list - Allocate and initialize sgl list.
3772a991
JS		 4866 * @phba: pointer to lpfc hba data structure.
4867 *
da0436e9
JS		 4868 * This routine is invoked to allocate and initizlize the driver's sgl
4869 * list and set up the sgl xritag tag array accordingly.
3772a991
JS		 4870 *
4871 * Return codes
af901ca1 4872 * 0 - successful
da0436e9 4873 * other values - error
3772a991
JS		 4874 **/
4875static int
da0436e9 4876lpfc_init_sgl_list(struct lpfc_hba *phba)
3772a991 4877{
da0436e9
JS		 4878 struct lpfc_sglq *sglq_entry = NULL;
4879 int i;
4880 int els_xri_cnt;
4881
4882 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4883 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6d368e53 4884 "2400 ELS XRI count %d.\n",
da0436e9
JS		 4885 els_xri_cnt);
4886 /* Initialize and populate the sglq list per host/VF. */
4887 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4888 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4889
4890 /* Sanity check on XRI management */
4891 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4892 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4893 "2562 No room left for SCSI XRI allocation: "
4894 "max_xri=%d, els_xri=%d\n",
4895 phba->sli4_hba.max_cfg_param.max_xri,
4896 els_xri_cnt);
4897 return -ENOMEM;
4898 }
3772a991 4899
da0436e9
JS		 4900 /* Allocate memory for the ELS XRI management array */
4901 phba->sli4_hba.lpfc_els_sgl_array =
4902 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4903 GFP_KERNEL);
0ff10d46 4904
da0436e9
JS		 4905 if (!phba->sli4_hba.lpfc_els_sgl_array) {
4906 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4907 "2401 Failed to allocate memory for ELS "
4908 "XRI management array of size %d.\n",
4909 els_xri_cnt);
4910 return -ENOMEM;
4911 }
2e0fef85 4912
da0436e9
JS		 4913 /* Keep the SCSI XRI into the XRI management array */
4914 phba->sli4_hba.scsi_xri_max =
4915 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4916 phba->sli4_hba.scsi_xri_cnt = 0;
da0436e9
JS		 4917 phba->sli4_hba.lpfc_scsi_psb_array =
4918 kzalloc((sizeof(struct lpfc_scsi_buf *) *
4919 phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4920
4921 if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4922 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4923 "2563 Failed to allocate memory for SCSI "
4924 "XRI management array of size %d.\n",
4925 phba->sli4_hba.scsi_xri_max);
4926 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4927 return -ENOMEM;
4928 }
4929
4930 for (i = 0; i < els_xri_cnt; i++) {
4931 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4932 if (sglq_entry == NULL) {
4933 printk(KERN_ERR "%s: only allocated %d sgls of "
4934 "expected %d count. Unloading driver.\n",
4935 __func__, i, els_xri_cnt);
4936 goto out_free_mem;
4937 }
4938
da0436e9
JS		 4939 sglq_entry->buff_type = GEN_BUFF_TYPE;
4940 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4941 if (sglq_entry->virt == NULL) {
4942 kfree(sglq_entry);
4943 printk(KERN_ERR "%s: failed to allocate mbuf.\n"
4944 "Unloading driver.\n", __func__);
4945 goto out_free_mem;
4946 }
4947 sglq_entry->sgl = sglq_entry->virt;
4948 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4949
4950 /* The list order is used by later block SGL registraton */
4951 spin_lock_irq(&phba->hbalock);
0f65ff68 4952 sglq_entry->state = SGL_FREED;
da0436e9
JS		 4953 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
4954 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
4955 phba->sli4_hba.total_sglq_bufs++;
4956 spin_unlock_irq(&phba->hbalock);
4957 }
4958 return 0;
4959
4960out_free_mem:
4961 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4962 lpfc_free_sgl_list(phba);
4963 return -ENOMEM;
4964}
4965
4966/**
4967 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4968 * @phba: pointer to lpfc hba data structure.
4969 *
4970 * This routine is invoked to post rpi header templates to the
88a2cfbb 4971 * port for those SLI4 ports that do not support extents. This routine
da0436e9 4972 * posts a PAGE_SIZE memory region to the port to hold up to
88a2cfbb
JS		 4973 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
4974 * and should be called only when interrupts are disabled.
da0436e9
JS		 4975 *
4976 * Return codes
af901ca1 4977 * 0 - successful
88a2cfbb 4978 * -ERROR - otherwise.
da0436e9
JS		 4979 **/
4980int
4981lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
4982{
4983 int rc = 0;
da0436e9
JS		 4984 struct lpfc_rpi_hdr *rpi_hdr;
4985
4986 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
da0436e9 4987 /*
6d368e53
JS		 4988 * If the SLI4 port supports extents, posting the rpi header isn't
4989 * required. Set the expected maximum count and let the actual value
4990 * get set when extents are fully allocated.
da0436e9 4991 */
6d368e53
JS		 4992 if (!phba->sli4_hba.rpi_hdrs_in_use) {
4993 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
4994 return rc;
4995 }
4996 if (phba->sli4_hba.extents_in_use)
4997 return -EIO;
da0436e9
JS		 4998
4999 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5000 if (!rpi_hdr) {
5001 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5002 "0391 Error during rpi post operation\n");
5003 lpfc_sli4_remove_rpis(phba);
5004 rc = -ENODEV;
5005 }
5006
5007 return rc;
5008}
5009
5010/**
5011 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5012 * @phba: pointer to lpfc hba data structure.
5013 *
5014 * This routine is invoked to allocate a single 4KB memory region to
5015 * support rpis and stores them in the phba. This single region
5016 * provides support for up to 64 rpis. The region is used globally
5017 * by the device.
5018 *
5019 * Returns:
5020 * A valid rpi hdr on success.
5021 * A NULL pointer on any failure.
5022 **/
5023struct lpfc_rpi_hdr *
5024lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5025{
5026 uint16_t rpi_limit, curr_rpi_range;
5027 struct lpfc_dmabuf *dmabuf;
5028 struct lpfc_rpi_hdr *rpi_hdr;
9589b062 5029 uint32_t rpi_count;
da0436e9 5030
6d368e53
JS		 5031 /*
5032 * If the SLI4 port supports extents, posting the rpi header isn't
5033 * required. Set the expected maximum count and let the actual value
5034 * get set when extents are fully allocated.
5035 */
5036 if (!phba->sli4_hba.rpi_hdrs_in_use)
5037 return NULL;
5038 if (phba->sli4_hba.extents_in_use)
5039 return NULL;
5040
5041 /* The limit on the logical index is just the max_rpi count. */
da0436e9 5042 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
6d368e53 5043 phba->sli4_hba.max_cfg_param.max_rpi - 1;
da0436e9
JS		 5044
5045 spin_lock_irq(&phba->hbalock);
6d368e53
JS		 5046 /*
5047 * Establish the starting RPI in this header block. The starting
5048 * rpi is normalized to a zero base because the physical rpi is
5049 * port based.
5050 */
5051 curr_rpi_range = phba->sli4_hba.next_rpi -
5052 phba->sli4_hba.max_cfg_param.rpi_base;
da0436e9
JS		 5053 spin_unlock_irq(&phba->hbalock);
5054
5055 /*
5056 * The port has a limited number of rpis. The increment here
5057 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5058 * and to allow the full max_rpi range per port.
5059 */
5060 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
9589b062
JS		 5061 rpi_count = rpi_limit - curr_rpi_range;
5062 else
5063 rpi_count = LPFC_RPI_HDR_COUNT;
da0436e9 5064
6d368e53
JS		 5065 if (!rpi_count)
5066 return NULL;
da0436e9
JS		 5067 /*
5068 * First allocate the protocol header region for the port. The
5069 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5070 */
5071 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5072 if (!dmabuf)
5073 return NULL;
5074
5075 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5076 LPFC_HDR_TEMPLATE_SIZE,
5077 &dmabuf->phys,
5078 GFP_KERNEL);
5079 if (!dmabuf->virt) {
5080 rpi_hdr = NULL;
5081 goto err_free_dmabuf;
5082 }
5083
5084 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5085 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5086 rpi_hdr = NULL;
5087 goto err_free_coherent;
5088 }
5089
5090 /* Save the rpi header data for cleanup later. */
5091 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5092 if (!rpi_hdr)
5093 goto err_free_coherent;
5094
5095 rpi_hdr->dmabuf = dmabuf;
5096 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5097 rpi_hdr->page_count = 1;
5098 spin_lock_irq(&phba->hbalock);
6d368e53
JS		 5099
5100 /* The rpi_hdr stores the logical index only. */
5101 rpi_hdr->start_rpi = curr_rpi_range;
da0436e9
JS		 5102 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5103
5104 /*
6d368e53
JS		 5105 * The next_rpi stores the next logical module-64 rpi value used
5106 * to post physical rpis in subsequent rpi postings.
da0436e9 5107 */
9589b062 5108 phba->sli4_hba.next_rpi += rpi_count;
da0436e9
JS		 5109 spin_unlock_irq(&phba->hbalock);
5110 return rpi_hdr;
5111
5112 err_free_coherent:
5113 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5114 dmabuf->virt, dmabuf->phys);
5115 err_free_dmabuf:
5116 kfree(dmabuf);
5117 return NULL;
5118}
5119
5120/**
5121 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5122 * @phba: pointer to lpfc hba data structure.
5123 *
5124 * This routine is invoked to remove all memory resources allocated
6d368e53
JS		 5125 * to support rpis for SLI4 ports not supporting extents. This routine
5126 * presumes the caller has released all rpis consumed by fabric or port
5127 * logins and is prepared to have the header pages removed.
da0436e9
JS		 5128 **/
5129void
5130lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5131{
5132 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5133
6d368e53
JS		 5134 if (!phba->sli4_hba.rpi_hdrs_in_use)
5135 goto exit;
5136
da0436e9
JS		 5137 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5138 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5139 list_del(&rpi_hdr->list);
5140 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5141 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5142 kfree(rpi_hdr->dmabuf);
5143 kfree(rpi_hdr);
5144 }
6d368e53
JS		 5145 exit:
5146 /* There are no rpis available to the port now. */
5147 phba->sli4_hba.next_rpi = 0;
da0436e9
JS		 5148}
5149
5150/**
5151 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5152 * @pdev: pointer to pci device data structure.
5153 *
5154 * This routine is invoked to allocate the driver hba data structure for an
5155 * HBA device. If the allocation is successful, the phba reference to the
5156 * PCI device data structure is set.
5157 *
5158 * Return codes
af901ca1 5159 * pointer to @phba - successful
da0436e9
JS		 5160 * NULL - error
5161 **/
5162static struct lpfc_hba *
5163lpfc_hba_alloc(struct pci_dev *pdev)
5164{
5165 struct lpfc_hba *phba;
5166
5167 /* Allocate memory for HBA structure */
5168 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5169 if (!phba) {
e34ccdfe 5170 dev_err(&pdev->dev, "failed to allocate hba struct\n");
da0436e9
JS		 5171 return NULL;
5172 }
5173
5174 /* Set reference to PCI device in HBA structure */
5175 phba->pcidev = pdev;
5176
5177 /* Assign an unused board number */
5178 phba->brd_no = lpfc_get_instance();
5179 if (phba->brd_no < 0) {
5180 kfree(phba);
5181 return NULL;
5182 }
5183
4fede78f 5184 spin_lock_init(&phba->ct_ev_lock);
f1c3b0fc
JS		 5185 INIT_LIST_HEAD(&phba->ct_ev_waiters);
5186
da0436e9
JS		 5187 return phba;
5188}
5189
5190/**
5191 * lpfc_hba_free - Free driver hba data structure with a device.
5192 * @phba: pointer to lpfc hba data structure.
5193 *
5194 * This routine is invoked to free the driver hba data structure with an
5195 * HBA device.
5196 **/
5197static void
5198lpfc_hba_free(struct lpfc_hba *phba)
5199{
5200 /* Release the driver assigned board number */
5201 idr_remove(&lpfc_hba_index, phba->brd_no);
5202
5203 kfree(phba);
5204 return;
5205}
5206
5207/**
5208 * lpfc_create_shost - Create hba physical port with associated scsi host.
5209 * @phba: pointer to lpfc hba data structure.
5210 *
5211 * This routine is invoked to create HBA physical port and associate a SCSI
5212 * host with it.
5213 *
5214 * Return codes
af901ca1 5215 * 0 - successful
da0436e9
JS		 5216 * other values - error
5217 **/
5218static int
5219lpfc_create_shost(struct lpfc_hba *phba)
5220{
5221 struct lpfc_vport *vport;
5222 struct Scsi_Host *shost;
5223
5224 /* Initialize HBA FC structure */
5225 phba->fc_edtov = FF_DEF_EDTOV;
5226 phba->fc_ratov = FF_DEF_RATOV;
5227 phba->fc_altov = FF_DEF_ALTOV;
5228 phba->fc_arbtov = FF_DEF_ARBTOV;
5229
d7c47992 5230 atomic_set(&phba->sdev_cnt, 0);
da0436e9
JS		 5231 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5232 if (!vport)
5233 return -ENODEV;
5234
5235 shost = lpfc_shost_from_vport(vport);
5236 phba->pport = vport;
5237 lpfc_debugfs_initialize(vport);
5238 /* Put reference to SCSI host to driver's device private data */
5239 pci_set_drvdata(phba->pcidev, shost);
2e0fef85 5240
3772a991
JS		 5241 return 0;
5242}
db2378e0 5243
3772a991
JS		 5244/**
5245 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5246 * @phba: pointer to lpfc hba data structure.
5247 *
5248 * This routine is invoked to destroy HBA physical port and the associated
5249 * SCSI host.
5250 **/
5251static void
5252lpfc_destroy_shost(struct lpfc_hba *phba)
5253{
5254 struct lpfc_vport *vport = phba->pport;
5255
5256 /* Destroy physical port that associated with the SCSI host */
5257 destroy_port(vport);
5258
5259 return;
5260}
5261
5262/**
5263 * lpfc_setup_bg - Setup Block guard structures and debug areas.
5264 * @phba: pointer to lpfc hba data structure.
5265 * @shost: the shost to be used to detect Block guard settings.
5266 *
5267 * This routine sets up the local Block guard protocol settings for @shost.
5268 * This routine also allocates memory for debugging bg buffers.
5269 **/
5270static void
5271lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5272{
5273 int pagecnt = 10;
5274 if (lpfc_prot_mask && lpfc_prot_guard) {
5275 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5276 "1478 Registering BlockGuard with the "
5277 "SCSI layer\n");
5278 scsi_host_set_prot(shost, lpfc_prot_mask);
5279 scsi_host_set_guard(shost, lpfc_prot_guard);
5280 }
5281 if (!_dump_buf_data) {
5282 while (pagecnt) {
5283 spin_lock_init(&_dump_buf_lock);
5284 _dump_buf_data =
5285 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5286 if (_dump_buf_data) {
6a9c52cf
JS		 5287 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5288 "9043 BLKGRD: allocated %d pages for "
3772a991
JS		 5289 "_dump_buf_data at 0x%p\n",
5290 (1 << pagecnt), _dump_buf_data);
5291 _dump_buf_data_order = pagecnt;
5292 memset(_dump_buf_data, 0,
5293 ((1 << PAGE_SHIFT) << pagecnt));
5294 break;
5295 } else
5296 --pagecnt;
5297 }
5298 if (!_dump_buf_data_order)
6a9c52cf
JS		 5299 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5300 "9044 BLKGRD: ERROR unable to allocate "
3772a991
JS		 5301 "memory for hexdump\n");
5302 } else
6a9c52cf
JS		 5303 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5304 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
3772a991
JS		 5305 "\n", _dump_buf_data);
5306 if (!_dump_buf_dif) {
5307 while (pagecnt) {
5308 _dump_buf_dif =
5309 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5310 if (_dump_buf_dif) {
6a9c52cf
JS		 5311 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5312 "9046 BLKGRD: allocated %d pages for "
3772a991
JS		 5313 "_dump_buf_dif at 0x%p\n",
5314 (1 << pagecnt), _dump_buf_dif);
5315 _dump_buf_dif_order = pagecnt;
5316 memset(_dump_buf_dif, 0,
5317 ((1 << PAGE_SHIFT) << pagecnt));
5318 break;
5319 } else
5320 --pagecnt;
5321 }
5322 if (!_dump_buf_dif_order)
6a9c52cf
JS		 5323 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5324 "9047 BLKGRD: ERROR unable to allocate "
3772a991
JS		 5325 "memory for hexdump\n");
5326 } else
6a9c52cf
JS		 5327 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5328 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
3772a991
JS		 5329 _dump_buf_dif);
5330}
5331
5332/**
5333 * lpfc_post_init_setup - Perform necessary device post initialization setup.
5334 * @phba: pointer to lpfc hba data structure.
5335 *
5336 * This routine is invoked to perform all the necessary post initialization
5337 * setup for the device.
5338 **/
5339static void
5340lpfc_post_init_setup(struct lpfc_hba *phba)
5341{
5342 struct Scsi_Host *shost;
5343 struct lpfc_adapter_event_header adapter_event;
5344
5345 /* Get the default values for Model Name and Description */
5346 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5347
5348 /*
5349 * hba setup may have changed the hba_queue_depth so we need to
5350 * adjust the value of can_queue.
5351 */
5352 shost = pci_get_drvdata(phba->pcidev);
5353 shost->can_queue = phba->cfg_hba_queue_depth - 10;
5354 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5355 lpfc_setup_bg(phba, shost);
5356
5357 lpfc_host_attrib_init(shost);
5358
5359 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5360 spin_lock_irq(shost->host_lock);
5361 lpfc_poll_start_timer(phba);
5362 spin_unlock_irq(shost->host_lock);
5363 }
5364
5365 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5366 "0428 Perform SCSI scan\n");
5367 /* Send board arrival event to upper layer */
5368 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5369 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5370 fc_host_post_vendor_event(shost, fc_get_event_number(),
5371 sizeof(adapter_event),
5372 (char *) &adapter_event,
5373 LPFC_NL_VENDOR_ID);
5374 return;
5375}
5376
5377/**
5378 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5379 * @phba: pointer to lpfc hba data structure.
5380 *
5381 * This routine is invoked to set up the PCI device memory space for device
5382 * with SLI-3 interface spec.
5383 *
5384 * Return codes
af901ca1 5385 * 0 - successful
3772a991
JS		 5386 * other values - error
5387 **/
5388static int
5389lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5390{
5391 struct pci_dev *pdev;
5392 unsigned long bar0map_len, bar2map_len;
5393 int i, hbq_count;
5394 void *ptr;
5395 int error = -ENODEV;
5396
5397 /* Obtain PCI device reference */
5398 if (!phba->pcidev)
5399 return error;
5400 else
5401 pdev = phba->pcidev;
5402
5403 /* Set the device DMA mask size */
8e68597d
MR		 5404 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5405 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5406 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5407 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
3772a991 5408 return error;
8e68597d
MR		 5409 }
5410 }
3772a991
JS		 5411
5412 /* Get the bus address of Bar0 and Bar2 and the number of bytes
5413 * required by each mapping.
5414 */
5415 phba->pci_bar0_map = pci_resource_start(pdev, 0);
5416 bar0map_len = pci_resource_len(pdev, 0);
5417
5418 phba->pci_bar2_map = pci_resource_start(pdev, 2);
5419 bar2map_len = pci_resource_len(pdev, 2);
5420
5421 /* Map HBA SLIM to a kernel virtual address. */
5422 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5423 if (!phba->slim_memmap_p) {
5424 dev_printk(KERN_ERR, &pdev->dev,
5425 "ioremap failed for SLIM memory.\n");
5426 goto out;
5427 }
5428
5429 /* Map HBA Control Registers to a kernel virtual address. */
5430 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5431 if (!phba->ctrl_regs_memmap_p) {
5432 dev_printk(KERN_ERR, &pdev->dev,
5433 "ioremap failed for HBA control registers.\n");
5434 goto out_iounmap_slim;
5435 }
5436
5437 /* Allocate memory for SLI-2 structures */
5438 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5439 SLI2_SLIM_SIZE,
5440 &phba->slim2p.phys,
5441 GFP_KERNEL);
5442 if (!phba->slim2p.virt)
5443 goto out_iounmap;
5444
5445 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5446 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7a470277
JS		 5447 phba->mbox_ext = (phba->slim2p.virt +
5448 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
3772a991
JS		 5449 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5450 phba->IOCBs = (phba->slim2p.virt +
5451 offsetof(struct lpfc_sli2_slim, IOCBs));
5452
5453 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5454 lpfc_sli_hbq_size(),
5455 &phba->hbqslimp.phys,
5456 GFP_KERNEL);
5457 if (!phba->hbqslimp.virt)
5458 goto out_free_slim;
5459
5460 hbq_count = lpfc_sli_hbq_count();
5461 ptr = phba->hbqslimp.virt;
5462 for (i = 0; i < hbq_count; ++i) {
5463 phba->hbqs[i].hbq_virt = ptr;
5464 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5465 ptr += (lpfc_hbq_defs[i]->entry_count *
5466 sizeof(struct lpfc_hbq_entry));
5467 }
5468 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5469 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5470
5471 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5472
5473 INIT_LIST_HEAD(&phba->rb_pend_list);
5474
5475 phba->MBslimaddr = phba->slim_memmap_p;
5476 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5477 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5478 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5479 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5480
5481 return 0;
5482
5483out_free_slim:
5484 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5485 phba->slim2p.virt, phba->slim2p.phys);
5486out_iounmap:
5487 iounmap(phba->ctrl_regs_memmap_p);
5488out_iounmap_slim:
5489 iounmap(phba->slim_memmap_p);
5490out:
5491 return error;
5492}
5493
5494/**
5495 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5496 * @phba: pointer to lpfc hba data structure.
5497 *
5498 * This routine is invoked to unset the PCI device memory space for device
5499 * with SLI-3 interface spec.
5500 **/
5501static void
5502lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5503{
5504 struct pci_dev *pdev;
5505
5506 /* Obtain PCI device reference */
5507 if (!phba->pcidev)
5508 return;
5509 else
5510 pdev = phba->pcidev;
5511
5512 /* Free coherent DMA memory allocated */
5513 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5514 phba->hbqslimp.virt, phba->hbqslimp.phys);
5515 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5516 phba->slim2p.virt, phba->slim2p.phys);
5517
5518 /* I/O memory unmap */
5519 iounmap(phba->ctrl_regs_memmap_p);
5520 iounmap(phba->slim_memmap_p);
5521
5522 return;
5523}
5524
5525/**
da0436e9 5526 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
3772a991
JS		 5527 * @phba: pointer to lpfc hba data structure.
5528 *
da0436e9
JS		 5529 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5530 * done and check status.
3772a991 5531 *
da0436e9 5532 * Return 0 if successful, otherwise -ENODEV.
3772a991 5533 **/
da0436e9
JS		 5534int
5535lpfc_sli4_post_status_check(struct lpfc_hba *phba)
3772a991 5536{
2fcee4bf
JS		 5537 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
5538 struct lpfc_register reg_data;
5539 int i, port_error = 0;
5540 uint32_t if_type;
3772a991 5541
9940b97b
JS		 5542 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
5543 memset(&reg_data, 0, sizeof(reg_data));
2fcee4bf 5544 if (!phba->sli4_hba.PSMPHRregaddr)
da0436e9 5545 return -ENODEV;
3772a991 5546
da0436e9
JS		 5547 /* Wait up to 30 seconds for the SLI Port POST done and ready */
5548 for (i = 0; i < 3000; i++) {
9940b97b
JS		 5549 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
5550 &portsmphr_reg.word0) ||
5551 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
2fcee4bf 5552 /* Port has a fatal POST error, break out */
da0436e9
JS		 5553 port_error = -ENODEV;
5554 break;
5555 }
2fcee4bf
JS		 5556 if (LPFC_POST_STAGE_PORT_READY ==
5557 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
da0436e9 5558 break;
da0436e9 5559 msleep(10);
3772a991
JS		 5560 }
5561
2fcee4bf
JS		 5562 /*
5563 * If there was a port error during POST, then don't proceed with
5564 * other register reads as the data may not be valid. Just exit.
5565 */
5566 if (port_error) {
da0436e9 5567 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2fcee4bf
JS		 5568 "1408 Port Failed POST - portsmphr=0x%x, "
5569 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
5570 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
5571 portsmphr_reg.word0,
5572 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
5573 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
5574 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
5575 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
5576 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
5577 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
5578 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
5579 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
5580 } else {
28baac74 5581 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2fcee4bf
JS		 5582 "2534 Device Info: SLIFamily=0x%x, "
5583 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
5584 "SLIHint_2=0x%x, FT=0x%x\n",
28baac74
JS		 5585 bf_get(lpfc_sli_intf_sli_family,
5586 &phba->sli4_hba.sli_intf),
5587 bf_get(lpfc_sli_intf_slirev,
5588 &phba->sli4_hba.sli_intf),
085c647c
JS		 5589 bf_get(lpfc_sli_intf_if_type,
5590 &phba->sli4_hba.sli_intf),
5591 bf_get(lpfc_sli_intf_sli_hint1,
28baac74 5592 &phba->sli4_hba.sli_intf),
085c647c
JS		 5593 bf_get(lpfc_sli_intf_sli_hint2,
5594 &phba->sli4_hba.sli_intf),
5595 bf_get(lpfc_sli_intf_func_type,
28baac74 5596 &phba->sli4_hba.sli_intf));
2fcee4bf
JS		 5597 /*
5598 * Check for other Port errors during the initialization
5599 * process. Fail the load if the port did not come up
5600 * correctly.
5601 */
5602 if_type = bf_get(lpfc_sli_intf_if_type,
5603 &phba->sli4_hba.sli_intf);
5604 switch (if_type) {
5605 case LPFC_SLI_INTF_IF_TYPE_0:
5606 phba->sli4_hba.ue_mask_lo =
5607 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
5608 phba->sli4_hba.ue_mask_hi =
5609 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
5610 uerrlo_reg.word0 =
5611 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
5612 uerrhi_reg.word0 =
5613 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
5614 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5615 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5616 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5617 "1422 Unrecoverable Error "
5618 "Detected during POST "
5619 "uerr_lo_reg=0x%x, "
5620 "uerr_hi_reg=0x%x, "
5621 "ue_mask_lo_reg=0x%x, "
5622 "ue_mask_hi_reg=0x%x\n",
5623 uerrlo_reg.word0,
5624 uerrhi_reg.word0,
5625 phba->sli4_hba.ue_mask_lo,
5626 phba->sli4_hba.ue_mask_hi);
5627 port_error = -ENODEV;
5628 }
5629 break;
5630 case LPFC_SLI_INTF_IF_TYPE_2:
5631 /* Final checks. The port status should be clean. */
9940b97b
JS		 5632 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
5633 &reg_data.word0) ||
0558056c
JS		 5634 (bf_get(lpfc_sliport_status_err, &reg_data) &&
5635 !bf_get(lpfc_sliport_status_rn, &reg_data))) {
2fcee4bf
JS		 5636 phba->work_status[0] =
5637 readl(phba->sli4_hba.u.if_type2.
5638 ERR1regaddr);
5639 phba->work_status[1] =
5640 readl(phba->sli4_hba.u.if_type2.
5641 ERR2regaddr);
5642 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5643 "2888 Port Error Detected "
5644 "during POST: "
5645 "port status reg 0x%x, "
5646 "port_smphr reg 0x%x, "
5647 "error 1=0x%x, error 2=0x%x\n",
5648 reg_data.word0,
5649 portsmphr_reg.word0,
5650 phba->work_status[0],
5651 phba->work_status[1]);
5652 port_error = -ENODEV;
5653 }
5654 break;
5655 case LPFC_SLI_INTF_IF_TYPE_1:
5656 default:
5657 break;
5658 }
28baac74 5659 }
da0436e9
JS		 5660 return port_error;
5661}
3772a991 5662
da0436e9
JS		 5663/**
5664 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5665 * @phba: pointer to lpfc hba data structure.
2fcee4bf 5666 * @if_type: The SLI4 interface type getting configured.
da0436e9
JS		 5667 *
5668 * This routine is invoked to set up SLI4 BAR0 PCI config space register
5669 * memory map.
5670 **/
5671static void
2fcee4bf
JS		 5672lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
5673{
5674 switch (if_type) {
5675 case LPFC_SLI_INTF_IF_TYPE_0:
5676 phba->sli4_hba.u.if_type0.UERRLOregaddr =
5677 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
5678 phba->sli4_hba.u.if_type0.UERRHIregaddr =
5679 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
5680 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
5681 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
5682 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
5683 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
5684 phba->sli4_hba.SLIINTFregaddr =
5685 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5686 break;
5687 case LPFC_SLI_INTF_IF_TYPE_2:
5688 phba->sli4_hba.u.if_type2.ERR1regaddr =
88a2cfbb
JS		 5689 phba->sli4_hba.conf_regs_memmap_p +
5690 LPFC_CTL_PORT_ER1_OFFSET;
2fcee4bf 5691 phba->sli4_hba.u.if_type2.ERR2regaddr =
88a2cfbb
JS		 5692 phba->sli4_hba.conf_regs_memmap_p +
5693 LPFC_CTL_PORT_ER2_OFFSET;
2fcee4bf 5694 phba->sli4_hba.u.if_type2.CTRLregaddr =
88a2cfbb
JS		 5695 phba->sli4_hba.conf_regs_memmap_p +
5696 LPFC_CTL_PORT_CTL_OFFSET;
2fcee4bf 5697 phba->sli4_hba.u.if_type2.STATUSregaddr =
88a2cfbb
JS		 5698 phba->sli4_hba.conf_regs_memmap_p +
5699 LPFC_CTL_PORT_STA_OFFSET;
2fcee4bf
JS		 5700 phba->sli4_hba.SLIINTFregaddr =
5701 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5702 phba->sli4_hba.PSMPHRregaddr =
88a2cfbb
JS		 5703 phba->sli4_hba.conf_regs_memmap_p +
5704 LPFC_CTL_PORT_SEM_OFFSET;
2fcee4bf
JS		 5705 phba->sli4_hba.RQDBregaddr =
5706 phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
5707 phba->sli4_hba.WQDBregaddr =
5708 phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
5709 phba->sli4_hba.EQCQDBregaddr =
5710 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
5711 phba->sli4_hba.MQDBregaddr =
5712 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
5713 phba->sli4_hba.BMBXregaddr =
5714 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
5715 break;
5716 case LPFC_SLI_INTF_IF_TYPE_1:
5717 default:
5718 dev_printk(KERN_ERR, &phba->pcidev->dev,
5719 "FATAL - unsupported SLI4 interface type - %d\n",
5720 if_type);
5721 break;
5722 }
da0436e9 5723}
3772a991 5724
da0436e9
JS		 5725/**
5726 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5727 * @phba: pointer to lpfc hba data structure.
5728 *
5729 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5730 * memory map.
5731 **/
5732static void
5733lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5734{
2fcee4bf
JS		 5735 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5736 LPFC_SLIPORT_IF0_SMPHR;
da0436e9 5737 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 5738 LPFC_HST_ISR0;
da0436e9 5739 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 5740 LPFC_HST_IMR0;
da0436e9 5741 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 5742 LPFC_HST_ISCR0;
3772a991
JS		 5743}
5744
5745/**
da0436e9 5746 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
3772a991 5747 * @phba: pointer to lpfc hba data structure.
da0436e9 5748 * @vf: virtual function number
3772a991 5749 *
da0436e9
JS		 5750 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5751 * based on the given viftual function number, @vf.
5752 *
5753 * Return 0 if successful, otherwise -ENODEV.
3772a991 5754 **/
da0436e9
JS		 5755static int
5756lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
3772a991 5757{
da0436e9
JS		 5758 if (vf > LPFC_VIR_FUNC_MAX)
5759 return -ENODEV;
3772a991 5760
da0436e9
JS		 5761 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5762 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5763 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5764 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5765 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5766 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5767 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5768 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5769 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5770 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5771 return 0;
3772a991
JS		 5772}
5773
5774/**
da0436e9 5775 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
3772a991
JS		 5776 * @phba: pointer to lpfc hba data structure.
5777 *
da0436e9
JS		 5778 * This routine is invoked to create the bootstrap mailbox
5779 * region consistent with the SLI-4 interface spec. This
5780 * routine allocates all memory necessary to communicate
5781 * mailbox commands to the port and sets up all alignment
5782 * needs. No locks are expected to be held when calling
5783 * this routine.
3772a991
JS		 5784 *
5785 * Return codes
af901ca1 5786 * 0 - successful
d439d286 5787 * -ENOMEM - could not allocated memory.
da0436e9 5788 **/
3772a991 5789static int
da0436e9 5790lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
3772a991 5791{
da0436e9
JS		 5792 uint32_t bmbx_size;
5793 struct lpfc_dmabuf *dmabuf;
5794 struct dma_address *dma_address;
5795 uint32_t pa_addr;
5796 uint64_t phys_addr;
5797
5798 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5799 if (!dmabuf)
5800 return -ENOMEM;
3772a991 5801
da0436e9
JS		 5802 /*
5803 * The bootstrap mailbox region is comprised of 2 parts
5804 * plus an alignment restriction of 16 bytes.
5805 */
5806 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5807 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5808 bmbx_size,
5809 &dmabuf->phys,
5810 GFP_KERNEL);
5811 if (!dmabuf->virt) {
5812 kfree(dmabuf);
5813 return -ENOMEM;
3772a991 5814 }
da0436e9 5815 memset(dmabuf->virt, 0, bmbx_size);
3772a991 5816
da0436e9
JS		 5817 /*
5818 * Initialize the bootstrap mailbox pointers now so that the register
5819 * operations are simple later. The mailbox dma address is required
5820 * to be 16-byte aligned. Also align the virtual memory as each
5821 * maibox is copied into the bmbx mailbox region before issuing the
5822 * command to the port.
5823 */
5824 phba->sli4_hba.bmbx.dmabuf = dmabuf;
5825 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
5826
5827 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
5828 LPFC_ALIGN_16_BYTE);
5829 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
5830 LPFC_ALIGN_16_BYTE);
5831
5832 /*
5833 * Set the high and low physical addresses now. The SLI4 alignment
5834 * requirement is 16 bytes and the mailbox is posted to the port
5835 * as two 30-bit addresses. The other data is a bit marking whether
5836 * the 30-bit address is the high or low address.
5837 * Upcast bmbx aphys to 64bits so shift instruction compiles
5838 * clean on 32 bit machines.
5839 */
5840 dma_address = &phba->sli4_hba.bmbx.dma_address;
5841 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
5842 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
5843 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
5844 LPFC_BMBX_BIT1_ADDR_HI);
5845
5846 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
5847 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
5848 LPFC_BMBX_BIT1_ADDR_LO);
5849 return 0;
3772a991
JS		 5850}
5851
5852/**
da0436e9 5853 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
3772a991
JS		 5854 * @phba: pointer to lpfc hba data structure.
5855 *
da0436e9
JS		 5856 * This routine is invoked to teardown the bootstrap mailbox
5857 * region and release all host resources. This routine requires
5858 * the caller to ensure all mailbox commands recovered, no
5859 * additional mailbox comands are sent, and interrupts are disabled
5860 * before calling this routine.
5861 *
5862 **/
3772a991 5863static void
da0436e9 5864lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
3772a991 5865{
da0436e9
JS		 5866 dma_free_coherent(&phba->pcidev->dev,
5867 phba->sli4_hba.bmbx.bmbx_size,
5868 phba->sli4_hba.bmbx.dmabuf->virt,
5869 phba->sli4_hba.bmbx.dmabuf->phys);
5870
5871 kfree(phba->sli4_hba.bmbx.dmabuf);
5872 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
3772a991
JS		 5873}
5874
5875/**
da0436e9 5876 * lpfc_sli4_read_config - Get the config parameters.
3772a991
JS		 5877 * @phba: pointer to lpfc hba data structure.
5878 *
da0436e9
JS		 5879 * This routine is invoked to read the configuration parameters from the HBA.
5880 * The configuration parameters are used to set the base and maximum values
5881 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5882 * allocation for the port.
3772a991
JS		 5883 *
5884 * Return codes
af901ca1 5885 * 0 - successful
25985edc 5886 * -ENOMEM - No available memory
d439d286 5887 * -EIO - The mailbox failed to complete successfully.
3772a991 5888 **/
da0436e9
JS		 5889static int
5890lpfc_sli4_read_config(struct lpfc_hba *phba)
3772a991 5891{
da0436e9
JS		 5892 LPFC_MBOXQ_t *pmb;
5893 struct lpfc_mbx_read_config *rd_config;
912e3acd
JS		 5894 union lpfc_sli4_cfg_shdr *shdr;
5895 uint32_t shdr_status, shdr_add_status;
5896 struct lpfc_mbx_get_func_cfg *get_func_cfg;
5897 struct lpfc_rsrc_desc_fcfcoe *desc;
5898 uint32_t desc_count;
5899 int length, i, rc = 0;
3772a991 5900
da0436e9
JS		 5901 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5902 if (!pmb) {
5903 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5904 "2011 Unable to allocate memory for issuing "
5905 "SLI_CONFIG_SPECIAL mailbox command\n");
5906 return -ENOMEM;
3772a991
JS		 5907 }
5908
da0436e9 5909 lpfc_read_config(phba, pmb);
3772a991 5910
da0436e9
JS		 5911 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5912 if (rc != MBX_SUCCESS) {
5913 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5914 "2012 Mailbox failed , mbxCmd x%x "
5915 "READ_CONFIG, mbxStatus x%x\n",
5916 bf_get(lpfc_mqe_command, &pmb->u.mqe),
5917 bf_get(lpfc_mqe_status, &pmb->u.mqe));
5918 rc = -EIO;
5919 } else {
5920 rd_config = &pmb->u.mqe.un.rd_config;
6d368e53
JS		 5921 phba->sli4_hba.extents_in_use =
5922 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
da0436e9
JS		 5923 phba->sli4_hba.max_cfg_param.max_xri =
5924 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
5925 phba->sli4_hba.max_cfg_param.xri_base =
5926 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
5927 phba->sli4_hba.max_cfg_param.max_vpi =
5928 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
5929 phba->sli4_hba.max_cfg_param.vpi_base =
5930 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
5931 phba->sli4_hba.max_cfg_param.max_rpi =
5932 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
5933 phba->sli4_hba.max_cfg_param.rpi_base =
5934 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
5935 phba->sli4_hba.max_cfg_param.max_vfi =
5936 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
5937 phba->sli4_hba.max_cfg_param.vfi_base =
5938 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
5939 phba->sli4_hba.max_cfg_param.max_fcfi =
5940 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
da0436e9
JS		 5941 phba->sli4_hba.max_cfg_param.max_eq =
5942 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
5943 phba->sli4_hba.max_cfg_param.max_rq =
5944 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
5945 phba->sli4_hba.max_cfg_param.max_wq =
5946 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
5947 phba->sli4_hba.max_cfg_param.max_cq =
5948 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
5949 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
5950 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
5951 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
5952 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5953 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
5ffc266e
JS		 5954 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
5955 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
da0436e9
JS		 5956 phba->max_vports = phba->max_vpi;
5957 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6d368e53
JS		 5958 "2003 cfg params Extents? %d "
5959 "XRI(B:%d M:%d), "
da0436e9
JS		 5960 "VPI(B:%d M:%d) "
5961 "VFI(B:%d M:%d) "
5962 "RPI(B:%d M:%d) "
6d368e53
JS		 5963 "FCFI(Count:%d)\n",
5964 phba->sli4_hba.extents_in_use,
da0436e9
JS		 5965 phba->sli4_hba.max_cfg_param.xri_base,
5966 phba->sli4_hba.max_cfg_param.max_xri,
5967 phba->sli4_hba.max_cfg_param.vpi_base,
5968 phba->sli4_hba.max_cfg_param.max_vpi,
5969 phba->sli4_hba.max_cfg_param.vfi_base,
5970 phba->sli4_hba.max_cfg_param.max_vfi,
5971 phba->sli4_hba.max_cfg_param.rpi_base,
5972 phba->sli4_hba.max_cfg_param.max_rpi,
da0436e9 5973 phba->sli4_hba.max_cfg_param.max_fcfi);
3772a991 5974 }
912e3acd
JS		 5975
5976 if (rc)
5977 goto read_cfg_out;
da0436e9
JS		 5978
5979 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
b92938b4
JS		 5980 if (phba->cfg_hba_queue_depth >
5981 (phba->sli4_hba.max_cfg_param.max_xri -
5982 lpfc_sli4_get_els_iocb_cnt(phba)))
da0436e9 5983 phba->cfg_hba_queue_depth =
b92938b4
JS		 5984 phba->sli4_hba.max_cfg_param.max_xri -
5985 lpfc_sli4_get_els_iocb_cnt(phba);
912e3acd
JS		 5986
5987 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
5988 LPFC_SLI_INTF_IF_TYPE_2)
5989 goto read_cfg_out;
5990
5991 /* get the pf# and vf# for SLI4 if_type 2 port */
5992 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
5993 sizeof(struct lpfc_sli4_cfg_mhdr));
5994 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
5995 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
5996 length, LPFC_SLI4_MBX_EMBED);
5997
5998 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5999 shdr = (union lpfc_sli4_cfg_shdr *)
6000 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6001 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6002 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6003 if (rc || shdr_status || shdr_add_status) {
6004 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6005 "3026 Mailbox failed , mbxCmd x%x "
6006 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6007 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6008 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6009 rc = -EIO;
6010 goto read_cfg_out;
6011 }
6012
6013 /* search for fc_fcoe resrouce descriptor */
6014 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6015 desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6016
6017 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6018 desc = (struct lpfc_rsrc_desc_fcfcoe *)
6019 &get_func_cfg->func_cfg.desc[i];
6020 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6021 bf_get(lpfc_rsrc_desc_pcie_type, desc)) {
6022 phba->sli4_hba.iov.pf_number =
6023 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6024 phba->sli4_hba.iov.vf_number =
6025 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6026 break;
6027 }
6028 }
6029
6030 if (i < LPFC_RSRC_DESC_MAX_NUM)
6031 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6032 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6033 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6034 phba->sli4_hba.iov.vf_number);
6035 else {
6036 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6037 "3028 GET_FUNCTION_CONFIG: failed to find "
6038 "Resrouce Descriptor:x%x\n",
6039 LPFC_RSRC_DESC_TYPE_FCFCOE);
6040 rc = -EIO;
6041 }
6042
6043read_cfg_out:
6044 mempool_free(pmb, phba->mbox_mem_pool);
da0436e9 6045 return rc;
3772a991
JS		 6046}
6047
6048/**
2fcee4bf 6049 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
3772a991
JS		 6050 * @phba: pointer to lpfc hba data structure.
6051 *
2fcee4bf
JS		 6052 * This routine is invoked to setup the port-side endian order when
6053 * the port if_type is 0. This routine has no function for other
6054 * if_types.
da0436e9
JS		 6055 *
6056 * Return codes
af901ca1 6057 * 0 - successful
25985edc 6058 * -ENOMEM - No available memory
d439d286 6059 * -EIO - The mailbox failed to complete successfully.
3772a991 6060 **/
da0436e9
JS		 6061static int
6062lpfc_setup_endian_order(struct lpfc_hba *phba)
3772a991 6063{
da0436e9 6064 LPFC_MBOXQ_t *mboxq;
2fcee4bf 6065 uint32_t if_type, rc = 0;
da0436e9
JS		 6066 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6067 HOST_ENDIAN_HIGH_WORD1};
3772a991 6068
2fcee4bf
JS		 6069 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6070 switch (if_type) {
6071 case LPFC_SLI_INTF_IF_TYPE_0:
6072 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6073 GFP_KERNEL);
6074 if (!mboxq) {
6075 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6076 "0492 Unable to allocate memory for "
6077 "issuing SLI_CONFIG_SPECIAL mailbox "
6078 "command\n");
6079 return -ENOMEM;
6080 }
3772a991 6081
2fcee4bf
JS		 6082 /*
6083 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6084 * two words to contain special data values and no other data.
6085 */
6086 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6087 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6088 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6089 if (rc != MBX_SUCCESS) {
6090 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6091 "0493 SLI_CONFIG_SPECIAL mailbox "
6092 "failed with status x%x\n",
6093 rc);
6094 rc = -EIO;
6095 }
6096 mempool_free(mboxq, phba->mbox_mem_pool);
6097 break;
6098 case LPFC_SLI_INTF_IF_TYPE_2:
6099 case LPFC_SLI_INTF_IF_TYPE_1:
6100 default:
6101 break;
da0436e9 6102 }
da0436e9 6103 return rc;
3772a991
JS		 6104}
6105
6106/**
da0436e9 6107 * lpfc_sli4_queue_create - Create all the SLI4 queues
3772a991
JS		 6108 * @phba: pointer to lpfc hba data structure.
6109 *
da0436e9
JS		 6110 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6111 * operation. For each SLI4 queue type, the parameters such as queue entry
6112 * count (queue depth) shall be taken from the module parameter. For now,
6113 * we just use some constant number as place holder.
6114 *
6115 * Return codes
af901ca1 6116 * 0 - successful
25985edc 6117 * -ENOMEM - No available memory
d439d286 6118 * -EIO - The mailbox failed to complete successfully.
3772a991 6119 **/
da0436e9
JS		 6120static int
6121lpfc_sli4_queue_create(struct lpfc_hba *phba)
3772a991 6122{
da0436e9
JS		 6123 struct lpfc_queue *qdesc;
6124 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6125 int cfg_fcp_wq_count;
6126 int cfg_fcp_eq_count;
3772a991 6127
da0436e9
JS		 6128 /*
6129 * Sanity check for confiugred queue parameters against the run-time
6130 * device parameters
6131 */
3772a991 6132
da0436e9
JS		 6133 /* Sanity check on FCP fast-path WQ parameters */
6134 cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
6135 if (cfg_fcp_wq_count >
6136 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
6137 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
6138 LPFC_SP_WQN_DEF;
6139 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
6140 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6141 "2581 Not enough WQs (%d) from "
6142 "the pci function for supporting "
6143 "FCP WQs (%d)\n",
6144 phba->sli4_hba.max_cfg_param.max_wq,
6145 phba->cfg_fcp_wq_count);
6146 goto out_error;
6147 }
6148 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6149 "2582 Not enough WQs (%d) from the pci "
6150 "function for supporting the requested "
6151 "FCP WQs (%d), the actual FCP WQs can "
6152 "be supported: %d\n",
6153 phba->sli4_hba.max_cfg_param.max_wq,
6154 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
6155 }
6156 /* The actual number of FCP work queues adopted */
6157 phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
6158
6159 /* Sanity check on FCP fast-path EQ parameters */
6160 cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
6161 if (cfg_fcp_eq_count >
6162 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
6163 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
6164 LPFC_SP_EQN_DEF;
6165 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
6166 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6167 "2574 Not enough EQs (%d) from the "
6168 "pci function for supporting FCP "
6169 "EQs (%d)\n",
6170 phba->sli4_hba.max_cfg_param.max_eq,
6171 phba->cfg_fcp_eq_count);
6172 goto out_error;
6173 }
6174 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6175 "2575 Not enough EQs (%d) from the pci "
6176 "function for supporting the requested "
6177 "FCP EQs (%d), the actual FCP EQs can "
6178 "be supported: %d\n",
6179 phba->sli4_hba.max_cfg_param.max_eq,
6180 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
6181 }
6182 /* It does not make sense to have more EQs than WQs */
6183 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
6184 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6a9c52cf
JS		 6185 "2593 The FCP EQ count(%d) cannot be greater "
6186 "than the FCP WQ count(%d), limiting the "
6187 "FCP EQ count to %d\n", cfg_fcp_eq_count,
da0436e9
JS		 6188 phba->cfg_fcp_wq_count,
6189 phba->cfg_fcp_wq_count);
6190 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
6191 }
6192 /* The actual number of FCP event queues adopted */
6193 phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
6194 /* The overall number of event queues used */
6195 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
3772a991 6196
da0436e9
JS		 6197 /*
6198 * Create Event Queues (EQs)
6199 */
3772a991 6200
da0436e9
JS		 6201 /* Get EQ depth from module parameter, fake the default for now */
6202 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6203 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
3772a991 6204
da0436e9
JS		 6205 /* Create slow path event queue */
6206 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6207 phba->sli4_hba.eq_ecount);
6208 if (!qdesc) {
6209 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6210 "0496 Failed allocate slow-path EQ\n");
6211 goto out_error;
6212 }
6213 phba->sli4_hba.sp_eq = qdesc;
6214
6215 /* Create fast-path FCP Event Queue(s) */
6216 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
6217 phba->cfg_fcp_eq_count), GFP_KERNEL);
6218 if (!phba->sli4_hba.fp_eq) {
6219 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6220 "2576 Failed allocate memory for fast-path "
6221 "EQ record array\n");
6222 goto out_free_sp_eq;
6223 }
6224 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6225 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6226 phba->sli4_hba.eq_ecount);
6227 if (!qdesc) {
6228 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6229 "0497 Failed allocate fast-path EQ\n");
6230 goto out_free_fp_eq;
6231 }
6232 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
6233 }
6234
6235 /*
6236 * Create Complete Queues (CQs)
6237 */
6238
6239 /* Get CQ depth from module parameter, fake the default for now */
6240 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6241 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6242
6243 /* Create slow-path Mailbox Command Complete Queue */
6244 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6245 phba->sli4_hba.cq_ecount);
6246 if (!qdesc) {
6247 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6248 "0500 Failed allocate slow-path mailbox CQ\n");
6249 goto out_free_fp_eq;
6250 }
6251 phba->sli4_hba.mbx_cq = qdesc;
6252
6253 /* Create slow-path ELS Complete Queue */
6254 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6255 phba->sli4_hba.cq_ecount);
6256 if (!qdesc) {
6257 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6258 "0501 Failed allocate slow-path ELS CQ\n");
6259 goto out_free_mbx_cq;
6260 }
6261 phba->sli4_hba.els_cq = qdesc;
6262
da0436e9
JS		 6263
6264 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
6265 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6266 phba->cfg_fcp_eq_count), GFP_KERNEL);
6267 if (!phba->sli4_hba.fcp_cq) {
6268 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6269 "2577 Failed allocate memory for fast-path "
6270 "CQ record array\n");
4d9ab994 6271 goto out_free_els_cq;
da0436e9
JS		 6272 }
6273 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6274 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6275 phba->sli4_hba.cq_ecount);
6276 if (!qdesc) {
6277 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6278 "0499 Failed allocate fast-path FCP "
6279 "CQ (%d)\n", fcp_cqidx);
6280 goto out_free_fcp_cq;
6281 }
6282 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
6283 }
6284
6285 /* Create Mailbox Command Queue */
6286 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6287 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6288
6289 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
6290 phba->sli4_hba.mq_ecount);
6291 if (!qdesc) {
6292 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6293 "0505 Failed allocate slow-path MQ\n");
6294 goto out_free_fcp_cq;
6295 }
6296 phba->sli4_hba.mbx_wq = qdesc;
6297
6298 /*
6299 * Create all the Work Queues (WQs)
6300 */
6301 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6302 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6303
6304 /* Create slow-path ELS Work Queue */
6305 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6306 phba->sli4_hba.wq_ecount);
6307 if (!qdesc) {
6308 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6309 "0504 Failed allocate slow-path ELS WQ\n");
6310 goto out_free_mbx_wq;
6311 }
6312 phba->sli4_hba.els_wq = qdesc;
6313
6314 /* Create fast-path FCP Work Queue(s) */
6315 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6316 phba->cfg_fcp_wq_count), GFP_KERNEL);
6317 if (!phba->sli4_hba.fcp_wq) {
6318 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6319 "2578 Failed allocate memory for fast-path "
6320 "WQ record array\n");
6321 goto out_free_els_wq;
6322 }
6323 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6324 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6325 phba->sli4_hba.wq_ecount);
6326 if (!qdesc) {
6327 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6328 "0503 Failed allocate fast-path FCP "
6329 "WQ (%d)\n", fcp_wqidx);
6330 goto out_free_fcp_wq;
6331 }
6332 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
6333 }
6334
6335 /*
6336 * Create Receive Queue (RQ)
6337 */
6338 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6339 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6340
6341 /* Create Receive Queue for header */
6342 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6343 phba->sli4_hba.rq_ecount);
6344 if (!qdesc) {
6345 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6346 "0506 Failed allocate receive HRQ\n");
6347 goto out_free_fcp_wq;
6348 }
6349 phba->sli4_hba.hdr_rq = qdesc;
6350
6351 /* Create Receive Queue for data */
6352 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6353 phba->sli4_hba.rq_ecount);
6354 if (!qdesc) {
6355 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6356 "0507 Failed allocate receive DRQ\n");
6357 goto out_free_hdr_rq;
6358 }
6359 phba->sli4_hba.dat_rq = qdesc;
6360
6361 return 0;
6362
6363out_free_hdr_rq:
6364 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6365 phba->sli4_hba.hdr_rq = NULL;
6366out_free_fcp_wq:
6367 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
6368 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
6369 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
6370 }
6371 kfree(phba->sli4_hba.fcp_wq);
6372out_free_els_wq:
6373 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6374 phba->sli4_hba.els_wq = NULL;
6375out_free_mbx_wq:
6376 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6377 phba->sli4_hba.mbx_wq = NULL;
6378out_free_fcp_cq:
6379 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
6380 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
6381 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
6382 }
6383 kfree(phba->sli4_hba.fcp_cq);
da0436e9
JS		 6384out_free_els_cq:
6385 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6386 phba->sli4_hba.els_cq = NULL;
6387out_free_mbx_cq:
6388 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6389 phba->sli4_hba.mbx_cq = NULL;
6390out_free_fp_eq:
6391 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
6392 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
6393 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
6394 }
6395 kfree(phba->sli4_hba.fp_eq);
6396out_free_sp_eq:
6397 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6398 phba->sli4_hba.sp_eq = NULL;
6399out_error:
6400 return -ENOMEM;
6401}
6402
6403/**
6404 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6405 * @phba: pointer to lpfc hba data structure.
6406 *
6407 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6408 * operation.
6409 *
6410 * Return codes
af901ca1 6411 * 0 - successful
25985edc 6412 * -ENOMEM - No available memory
d439d286 6413 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 6414 **/
6415static void
6416lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
6417{
6418 int fcp_qidx;
6419
6420 /* Release mailbox command work queue */
6421 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6422 phba->sli4_hba.mbx_wq = NULL;
6423
6424 /* Release ELS work queue */
6425 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6426 phba->sli4_hba.els_wq = NULL;
6427
6428 /* Release FCP work queue */
6429 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6430 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
6431 kfree(phba->sli4_hba.fcp_wq);
6432 phba->sli4_hba.fcp_wq = NULL;
6433
6434 /* Release unsolicited receive queue */
6435 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6436 phba->sli4_hba.hdr_rq = NULL;
6437 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
6438 phba->sli4_hba.dat_rq = NULL;
6439
da0436e9
JS		 6440 /* Release ELS complete queue */
6441 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6442 phba->sli4_hba.els_cq = NULL;
6443
6444 /* Release mailbox command complete queue */
6445 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6446 phba->sli4_hba.mbx_cq = NULL;
6447
6448 /* Release FCP response complete queue */
0558056c
JS		 6449 fcp_qidx = 0;
6450 do
da0436e9 6451 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
0558056c 6452 while (++fcp_qidx < phba->cfg_fcp_eq_count);
da0436e9
JS		 6453 kfree(phba->sli4_hba.fcp_cq);
6454 phba->sli4_hba.fcp_cq = NULL;
6455
6456 /* Release fast-path event queue */
6457 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6458 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
6459 kfree(phba->sli4_hba.fp_eq);
6460 phba->sli4_hba.fp_eq = NULL;
6461
6462 /* Release slow-path event queue */
6463 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6464 phba->sli4_hba.sp_eq = NULL;
6465
6466 return;
6467}
6468
6469/**
6470 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
6471 * @phba: pointer to lpfc hba data structure.
6472 *
6473 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
6474 * operation.
6475 *
6476 * Return codes
af901ca1 6477 * 0 - successful
25985edc 6478 * -ENOMEM - No available memory
d439d286 6479 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 6480 **/
6481int
6482lpfc_sli4_queue_setup(struct lpfc_hba *phba)
6483{
6484 int rc = -ENOMEM;
6485 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6486 int fcp_cq_index = 0;
6487
6488 /*
6489 * Set up Event Queues (EQs)
6490 */
6491
6492 /* Set up slow-path event queue */
6493 if (!phba->sli4_hba.sp_eq) {
6494 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6495 "0520 Slow-path EQ not allocated\n");
6496 goto out_error;
6497 }
6498 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
6499 LPFC_SP_DEF_IMAX);
6500 if (rc) {
6501 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6502 "0521 Failed setup of slow-path EQ: "
6503 "rc = 0x%x\n", rc);
6504 goto out_error;
6505 }
6506 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6507 "2583 Slow-path EQ setup: queue-id=%d\n",
6508 phba->sli4_hba.sp_eq->queue_id);
6509
6510 /* Set up fast-path event queue */
6511 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6512 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
6513 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6514 "0522 Fast-path EQ (%d) not "
6515 "allocated\n", fcp_eqidx);
6516 goto out_destroy_fp_eq;
6517 }
6518 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
6519 phba->cfg_fcp_imax);
6520 if (rc) {
6521 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6522 "0523 Failed setup of fast-path EQ "
6523 "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6524 goto out_destroy_fp_eq;
6525 }
6526 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6527 "2584 Fast-path EQ setup: "
6528 "queue[%d]-id=%d\n", fcp_eqidx,
6529 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
6530 }
6531
6532 /*
6533 * Set up Complete Queues (CQs)
6534 */
6535
6536 /* Set up slow-path MBOX Complete Queue as the first CQ */
6537 if (!phba->sli4_hba.mbx_cq) {
6538 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6539 "0528 Mailbox CQ not allocated\n");
6540 goto out_destroy_fp_eq;
6541 }
6542 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
6543 LPFC_MCQ, LPFC_MBOX);
6544 if (rc) {
6545 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6546 "0529 Failed setup of slow-path mailbox CQ: "
6547 "rc = 0x%x\n", rc);
6548 goto out_destroy_fp_eq;
6549 }
6550 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6551 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6552 phba->sli4_hba.mbx_cq->queue_id,
6553 phba->sli4_hba.sp_eq->queue_id);
6554
6555 /* Set up slow-path ELS Complete Queue */
6556 if (!phba->sli4_hba.els_cq) {
6557 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6558 "0530 ELS CQ not allocated\n");
6559 goto out_destroy_mbx_cq;
6560 }
6561 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
6562 LPFC_WCQ, LPFC_ELS);
6563 if (rc) {
6564 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6565 "0531 Failed setup of slow-path ELS CQ: "
6566 "rc = 0x%x\n", rc);
6567 goto out_destroy_mbx_cq;
6568 }
6569 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6570 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6571 phba->sli4_hba.els_cq->queue_id,
6572 phba->sli4_hba.sp_eq->queue_id);
6573
da0436e9 6574 /* Set up fast-path FCP Response Complete Queue */
0558056c
JS		 6575 fcp_cqidx = 0;
6576 do {
da0436e9
JS		 6577 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6578 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6579 "0526 Fast-path FCP CQ (%d) not "
6580 "allocated\n", fcp_cqidx);
6581 goto out_destroy_fcp_cq;
6582 }
0558056c
JS		 6583 if (phba->cfg_fcp_eq_count)
6584 rc = lpfc_cq_create(phba,
6585 phba->sli4_hba.fcp_cq[fcp_cqidx],
6586 phba->sli4_hba.fp_eq[fcp_cqidx],
6587 LPFC_WCQ, LPFC_FCP);
6588 else
6589 rc = lpfc_cq_create(phba,
6590 phba->sli4_hba.fcp_cq[fcp_cqidx],
6591 phba->sli4_hba.sp_eq,
6592 LPFC_WCQ, LPFC_FCP);
da0436e9
JS		 6593 if (rc) {
6594 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6595 "0527 Failed setup of fast-path FCP "
6596 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6597 goto out_destroy_fcp_cq;
6598 }
6599 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6600 "2588 FCP CQ setup: cq[%d]-id=%d, "
0558056c 6601 "parent %seq[%d]-id=%d\n",
da0436e9
JS		 6602 fcp_cqidx,
6603 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
0558056c 6604 (phba->cfg_fcp_eq_count) ? "" : "sp_",
da0436e9 6605 fcp_cqidx,
0558056c
JS		 6606 (phba->cfg_fcp_eq_count) ?
6607 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id :
6608 phba->sli4_hba.sp_eq->queue_id);
6609 } while (++fcp_cqidx < phba->cfg_fcp_eq_count);
da0436e9
JS		 6610
6611 /*
6612 * Set up all the Work Queues (WQs)
6613 */
6614
6615 /* Set up Mailbox Command Queue */
6616 if (!phba->sli4_hba.mbx_wq) {
6617 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6618 "0538 Slow-path MQ not allocated\n");
6619 goto out_destroy_fcp_cq;
6620 }
6621 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
6622 phba->sli4_hba.mbx_cq, LPFC_MBOX);
6623 if (rc) {
6624 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6625 "0539 Failed setup of slow-path MQ: "
6626 "rc = 0x%x\n", rc);
6627 goto out_destroy_fcp_cq;
6628 }
6629 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6630 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6631 phba->sli4_hba.mbx_wq->queue_id,
6632 phba->sli4_hba.mbx_cq->queue_id);
6633
6634 /* Set up slow-path ELS Work Queue */
6635 if (!phba->sli4_hba.els_wq) {
6636 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6637 "0536 Slow-path ELS WQ not allocated\n");
6638 goto out_destroy_mbx_wq;
6639 }
6640 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
6641 phba->sli4_hba.els_cq, LPFC_ELS);
6642 if (rc) {
6643 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6644 "0537 Failed setup of slow-path ELS WQ: "
6645 "rc = 0x%x\n", rc);
6646 goto out_destroy_mbx_wq;
6647 }
6648 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6649 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6650 phba->sli4_hba.els_wq->queue_id,
6651 phba->sli4_hba.els_cq->queue_id);
6652
6653 /* Set up fast-path FCP Work Queue */
6654 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6655 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
6656 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6657 "0534 Fast-path FCP WQ (%d) not "
6658 "allocated\n", fcp_wqidx);
6659 goto out_destroy_fcp_wq;
6660 }
6661 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
6662 phba->sli4_hba.fcp_cq[fcp_cq_index],
6663 LPFC_FCP);
6664 if (rc) {
6665 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6666 "0535 Failed setup of fast-path FCP "
6667 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
6668 goto out_destroy_fcp_wq;
6669 }
6670 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6671 "2591 FCP WQ setup: wq[%d]-id=%d, "
6672 "parent cq[%d]-id=%d\n",
6673 fcp_wqidx,
6674 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
6675 fcp_cq_index,
6676 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
6677 /* Round robin FCP Work Queue's Completion Queue assignment */
0558056c
JS		 6678 if (phba->cfg_fcp_eq_count)
6679 fcp_cq_index = ((fcp_cq_index + 1) %
6680 phba->cfg_fcp_eq_count);
da0436e9
JS		 6681 }
6682
6683 /*
6684 * Create Receive Queue (RQ)
6685 */
6686 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
6687 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6688 "0540 Receive Queue not allocated\n");
6689 goto out_destroy_fcp_wq;
6690 }
6691 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
4d9ab994 6692 phba->sli4_hba.els_cq, LPFC_USOL);
da0436e9
JS		 6693 if (rc) {
6694 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6695 "0541 Failed setup of Receive Queue: "
6696 "rc = 0x%x\n", rc);
6697 goto out_destroy_fcp_wq;
6698 }
6699 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6700 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6701 "parent cq-id=%d\n",
6702 phba->sli4_hba.hdr_rq->queue_id,
6703 phba->sli4_hba.dat_rq->queue_id,
4d9ab994 6704 phba->sli4_hba.els_cq->queue_id);
da0436e9
JS		 6705 return 0;
6706
6707out_destroy_fcp_wq:
6708 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
6709 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6710 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6711out_destroy_mbx_wq:
6712 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6713out_destroy_fcp_cq:
6714 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
6715 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
da0436e9
JS		 6716 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6717out_destroy_mbx_cq:
6718 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6719out_destroy_fp_eq:
6720 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
6721 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6722 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6723out_error:
6724 return rc;
6725}
6726
6727/**
6728 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6729 * @phba: pointer to lpfc hba data structure.
6730 *
6731 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6732 * operation.
6733 *
6734 * Return codes
af901ca1 6735 * 0 - successful
25985edc 6736 * -ENOMEM - No available memory
d439d286 6737 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 6738 **/
6739void
6740lpfc_sli4_queue_unset(struct lpfc_hba *phba)
6741{
6742 int fcp_qidx;
6743
6744 /* Unset mailbox command work queue */
6745 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6746 /* Unset ELS work queue */
6747 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6748 /* Unset unsolicited receive queue */
6749 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
6750 /* Unset FCP work queue */
6751 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6752 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
6753 /* Unset mailbox command complete queue */
6754 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6755 /* Unset ELS complete queue */
6756 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
da0436e9
JS		 6757 /* Unset FCP response complete queue */
6758 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6759 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
6760 /* Unset fast-path event queue */
6761 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6762 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
6763 /* Unset slow-path event queue */
6764 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6765}
6766
6767/**
6768 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6769 * @phba: pointer to lpfc hba data structure.
6770 *
6771 * This routine is invoked to allocate and set up a pool of completion queue
6772 * events. The body of the completion queue event is a completion queue entry
6773 * CQE. For now, this pool is used for the interrupt service routine to queue
6774 * the following HBA completion queue events for the worker thread to process:
6775 * - Mailbox asynchronous events
6776 * - Receive queue completion unsolicited events
6777 * Later, this can be used for all the slow-path events.
6778 *
6779 * Return codes
af901ca1 6780 * 0 - successful
25985edc 6781 * -ENOMEM - No available memory
da0436e9
JS		 6782 **/
6783static int
6784lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
6785{
6786 struct lpfc_cq_event *cq_event;
6787 int i;
6788
6789 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
6790 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
6791 if (!cq_event)
6792 goto out_pool_create_fail;
6793 list_add_tail(&cq_event->list,
6794 &phba->sli4_hba.sp_cqe_event_pool);
6795 }
6796 return 0;
6797
6798out_pool_create_fail:
6799 lpfc_sli4_cq_event_pool_destroy(phba);
6800 return -ENOMEM;
6801}
6802
6803/**
6804 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6805 * @phba: pointer to lpfc hba data structure.
6806 *
6807 * This routine is invoked to free the pool of completion queue events at
6808 * driver unload time. Note that, it is the responsibility of the driver
6809 * cleanup routine to free all the outstanding completion-queue events
6810 * allocated from this pool back into the pool before invoking this routine
6811 * to destroy the pool.
6812 **/
6813static void
6814lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
6815{
6816 struct lpfc_cq_event *cq_event, *next_cq_event;
6817
6818 list_for_each_entry_safe(cq_event, next_cq_event,
6819 &phba->sli4_hba.sp_cqe_event_pool, list) {
6820 list_del(&cq_event->list);
6821 kfree(cq_event);
6822 }
6823}
6824
6825/**
6826 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6827 * @phba: pointer to lpfc hba data structure.
6828 *
6829 * This routine is the lock free version of the API invoked to allocate a
6830 * completion-queue event from the free pool.
6831 *
6832 * Return: Pointer to the newly allocated completion-queue event if successful
6833 * NULL otherwise.
6834 **/
6835struct lpfc_cq_event *
6836__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6837{
6838 struct lpfc_cq_event *cq_event = NULL;
6839
6840 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
6841 struct lpfc_cq_event, list);
6842 return cq_event;
6843}
6844
6845/**
6846 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6847 * @phba: pointer to lpfc hba data structure.
6848 *
6849 * This routine is the lock version of the API invoked to allocate a
6850 * completion-queue event from the free pool.
6851 *
6852 * Return: Pointer to the newly allocated completion-queue event if successful
6853 * NULL otherwise.
6854 **/
6855struct lpfc_cq_event *
6856lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6857{
6858 struct lpfc_cq_event *cq_event;
6859 unsigned long iflags;
6860
6861 spin_lock_irqsave(&phba->hbalock, iflags);
6862 cq_event = __lpfc_sli4_cq_event_alloc(phba);
6863 spin_unlock_irqrestore(&phba->hbalock, iflags);
6864 return cq_event;
6865}
6866
6867/**
6868 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6869 * @phba: pointer to lpfc hba data structure.
6870 * @cq_event: pointer to the completion queue event to be freed.
6871 *
6872 * This routine is the lock free version of the API invoked to release a
6873 * completion-queue event back into the free pool.
6874 **/
6875void
6876__lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6877 struct lpfc_cq_event *cq_event)
6878{
6879 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
6880}
6881
6882/**
6883 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6884 * @phba: pointer to lpfc hba data structure.
6885 * @cq_event: pointer to the completion queue event to be freed.
6886 *
6887 * This routine is the lock version of the API invoked to release a
6888 * completion-queue event back into the free pool.
6889 **/
6890void
6891lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6892 struct lpfc_cq_event *cq_event)
6893{
6894 unsigned long iflags;
6895 spin_lock_irqsave(&phba->hbalock, iflags);
6896 __lpfc_sli4_cq_event_release(phba, cq_event);
6897 spin_unlock_irqrestore(&phba->hbalock, iflags);
6898}
6899
6900/**
6901 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6902 * @phba: pointer to lpfc hba data structure.
6903 *
6904 * This routine is to free all the pending completion-queue events to the
6905 * back into the free pool for device reset.
6906 **/
6907static void
6908lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
6909{
6910 LIST_HEAD(cqelist);
6911 struct lpfc_cq_event *cqe;
6912 unsigned long iflags;
6913
6914 /* Retrieve all the pending WCQEs from pending WCQE lists */
6915 spin_lock_irqsave(&phba->hbalock, iflags);
6916 /* Pending FCP XRI abort events */
6917 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
6918 &cqelist);
6919 /* Pending ELS XRI abort events */
6920 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
6921 &cqelist);
6922 /* Pending asynnc events */
6923 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
6924 &cqelist);
6925 spin_unlock_irqrestore(&phba->hbalock, iflags);
6926
6927 while (!list_empty(&cqelist)) {
6928 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
6929 lpfc_sli4_cq_event_release(phba, cqe);
6930 }
6931}
6932
6933/**
6934 * lpfc_pci_function_reset - Reset pci function.
6935 * @phba: pointer to lpfc hba data structure.
6936 *
6937 * This routine is invoked to request a PCI function reset. It will destroys
6938 * all resources assigned to the PCI function which originates this request.
6939 *
6940 * Return codes
af901ca1 6941 * 0 - successful
25985edc 6942 * -ENOMEM - No available memory
d439d286 6943 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 6944 **/
6945int
6946lpfc_pci_function_reset(struct lpfc_hba *phba)
6947{
6948 LPFC_MBOXQ_t *mboxq;
2fcee4bf 6949 uint32_t rc = 0, if_type;
da0436e9 6950 uint32_t shdr_status, shdr_add_status;
2fcee4bf 6951 uint32_t rdy_chk, num_resets = 0, reset_again = 0;
da0436e9 6952 union lpfc_sli4_cfg_shdr *shdr;
2fcee4bf 6953 struct lpfc_register reg_data;
da0436e9 6954
2fcee4bf
JS		 6955 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6956 switch (if_type) {
6957 case LPFC_SLI_INTF_IF_TYPE_0:
6958 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6959 GFP_KERNEL);
6960 if (!mboxq) {
6961 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6962 "0494 Unable to allocate memory for "
6963 "issuing SLI_FUNCTION_RESET mailbox "
6964 "command\n");
6965 return -ENOMEM;
6966 }
da0436e9 6967
2fcee4bf
JS		 6968 /* Setup PCI function reset mailbox-ioctl command */
6969 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6970 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
6971 LPFC_SLI4_MBX_EMBED);
6972 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6973 shdr = (union lpfc_sli4_cfg_shdr *)
6974 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6975 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6976 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
6977 &shdr->response);
6978 if (rc != MBX_TIMEOUT)
6979 mempool_free(mboxq, phba->mbox_mem_pool);
6980 if (shdr_status || shdr_add_status || rc) {
6981 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6982 "0495 SLI_FUNCTION_RESET mailbox "
6983 "failed with status x%x add_status x%x,"
6984 " mbx status x%x\n",
6985 shdr_status, shdr_add_status, rc);
6986 rc = -ENXIO;
6987 }
6988 break;
6989 case LPFC_SLI_INTF_IF_TYPE_2:
6990 for (num_resets = 0;
6991 num_resets < MAX_IF_TYPE_2_RESETS;
6992 num_resets++) {
6993 reg_data.word0 = 0;
6994 bf_set(lpfc_sliport_ctrl_end, &reg_data,
6995 LPFC_SLIPORT_LITTLE_ENDIAN);
6996 bf_set(lpfc_sliport_ctrl_ip, &reg_data,
6997 LPFC_SLIPORT_INIT_PORT);
6998 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
6999 CTRLregaddr);
7000
7001 /*
7002 * Poll the Port Status Register and wait for RDY for
7003 * up to 10 seconds. If the port doesn't respond, treat
7004 * it as an error. If the port responds with RN, start
7005 * the loop again.
7006 */
7007 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
9940b97b
JS		 7008 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7009 STATUSregaddr, &reg_data.word0)) {
7010 rc = -ENODEV;
7011 break;
7012 }
2fcee4bf
JS		 7013 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
7014 break;
7015 if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
7016 reset_again++;
7017 break;
7018 }
7019 msleep(10);
7020 }
7021
7022 /*
7023 * If the port responds to the init request with
7024 * reset needed, delay for a bit and restart the loop.
7025 */
7026 if (reset_again) {
7027 msleep(10);
7028 reset_again = 0;
7029 continue;
7030 }
7031
7032 /* Detect any port errors. */
9940b97b
JS		 7033 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7034 &reg_data.word0)) {
7035 rc = -ENODEV;
7036 break;
7037 }
2fcee4bf
JS		 7038 if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
7039 (rdy_chk >= 1000)) {
7040 phba->work_status[0] = readl(
7041 phba->sli4_hba.u.if_type2.ERR1regaddr);
7042 phba->work_status[1] = readl(
7043 phba->sli4_hba.u.if_type2.ERR2regaddr);
7044 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7045 "2890 Port Error Detected "
7046 "during Port Reset: "
7047 "port status reg 0x%x, "
7048 "error 1=0x%x, error 2=0x%x\n",
7049 reg_data.word0,
7050 phba->work_status[0],
7051 phba->work_status[1]);
7052 rc = -ENODEV;
7053 }
7054
7055 /*
7056 * Terminate the outer loop provided the Port indicated
7057 * ready within 10 seconds.
7058 */
7059 if (rdy_chk < 1000)
7060 break;
7061 }
0558056c
JS		 7062 /* delay driver action following IF_TYPE_2 function reset */
7063 msleep(100);
2fcee4bf
JS		 7064 break;
7065 case LPFC_SLI_INTF_IF_TYPE_1:
7066 default:
7067 break;
da0436e9 7068 }
2fcee4bf
JS		 7069
7070 /* Catch the not-ready port failure after a port reset. */
7071 if (num_resets >= MAX_IF_TYPE_2_RESETS)
7072 rc = -ENODEV;
7073
da0436e9
JS		 7074 return rc;
7075}
7076
7077/**
7078 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
7079 * @phba: pointer to lpfc hba data structure.
7080 * @cnt: number of nop mailbox commands to send.
7081 *
7082 * This routine is invoked to send a number @cnt of NOP mailbox command and
7083 * wait for each command to complete.
7084 *
7085 * Return: the number of NOP mailbox command completed.
7086 **/
7087static int
7088lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
7089{
7090 LPFC_MBOXQ_t *mboxq;
7091 int length, cmdsent;
7092 uint32_t mbox_tmo;
7093 uint32_t rc = 0;
7094 uint32_t shdr_status, shdr_add_status;
7095 union lpfc_sli4_cfg_shdr *shdr;
7096
7097 if (cnt == 0) {
7098 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7099 "2518 Requested to send 0 NOP mailbox cmd\n");
7100 return cnt;
7101 }
7102
7103 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7104 if (!mboxq) {
7105 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7106 "2519 Unable to allocate memory for issuing "
7107 "NOP mailbox command\n");
7108 return 0;
7109 }
7110
7111 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
7112 length = (sizeof(struct lpfc_mbx_nop) -
7113 sizeof(struct lpfc_sli4_cfg_mhdr));
7114 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7115 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
7116
7117 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
7118 for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
7119 if (!phba->sli4_hba.intr_enable)
7120 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7121 else
7122 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7123 if (rc == MBX_TIMEOUT)
7124 break;
7125 /* Check return status */
7126 shdr = (union lpfc_sli4_cfg_shdr *)
7127 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7128 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7129 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7130 &shdr->response);
7131 if (shdr_status || shdr_add_status || rc) {
7132 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7133 "2520 NOP mailbox command failed "
7134 "status x%x add_status x%x mbx "
7135 "status x%x\n", shdr_status,
7136 shdr_add_status, rc);
7137 break;
7138 }
7139 }
7140
7141 if (rc != MBX_TIMEOUT)
7142 mempool_free(mboxq, phba->mbox_mem_pool);
7143
7144 return cmdsent;
7145}
7146
da0436e9
JS		 7147/**
7148 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7149 * @phba: pointer to lpfc hba data structure.
7150 *
7151 * This routine is invoked to set up the PCI device memory space for device
7152 * with SLI-4 interface spec.
7153 *
7154 * Return codes
af901ca1 7155 * 0 - successful
da0436e9
JS		 7156 * other values - error
7157 **/
7158static int
7159lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
7160{
7161 struct pci_dev *pdev;
7162 unsigned long bar0map_len, bar1map_len, bar2map_len;
7163 int error = -ENODEV;
2fcee4bf 7164 uint32_t if_type;
da0436e9
JS		 7165
7166 /* Obtain PCI device reference */
7167 if (!phba->pcidev)
7168 return error;
7169 else
7170 pdev = phba->pcidev;
7171
7172 /* Set the device DMA mask size */
8e68597d
MR		 7173 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7174 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7175 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7176 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
da0436e9 7177 return error;
8e68597d
MR		 7178 }
7179 }
da0436e9 7180
2fcee4bf
JS		 7181 /*
7182 * The BARs and register set definitions and offset locations are
7183 * dependent on the if_type.
7184 */
7185 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7186 &phba->sli4_hba.sli_intf.word0)) {
7187 return error;
7188 }
7189
7190 /* There is no SLI3 failback for SLI4 devices. */
7191 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7192 LPFC_SLI_INTF_VALID) {
7193 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7194 "2894 SLI_INTF reg contents invalid "
7195 "sli_intf reg 0x%x\n",
7196 phba->sli4_hba.sli_intf.word0);
7197 return error;
7198 }
7199
7200 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7201 /*
7202 * Get the bus address of SLI4 device Bar regions and the
7203 * number of bytes required by each mapping. The mapping of the
7204 * particular PCI BARs regions is dependent on the type of
7205 * SLI4 device.
da0436e9 7206 */
1dfb5a47
JS		 7207 if (pci_resource_start(pdev, 0)) {
7208 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7209 bar0map_len = pci_resource_len(pdev, 0);
2fcee4bf
JS		 7210
7211 /*
7212 * Map SLI4 PCI Config Space Register base to a kernel virtual
7213 * addr
7214 */
7215 phba->sli4_hba.conf_regs_memmap_p =
7216 ioremap(phba->pci_bar0_map, bar0map_len);
7217 if (!phba->sli4_hba.conf_regs_memmap_p) {
7218 dev_printk(KERN_ERR, &pdev->dev,
7219 "ioremap failed for SLI4 PCI config "
7220 "registers.\n");
7221 goto out;
7222 }
7223 /* Set up BAR0 PCI config space register memory map */
7224 lpfc_sli4_bar0_register_memmap(phba, if_type);
1dfb5a47
JS		 7225 } else {
7226 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7227 bar0map_len = pci_resource_len(pdev, 1);
2fcee4bf
JS		 7228 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7229 dev_printk(KERN_ERR, &pdev->dev,
7230 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7231 goto out;
7232 }
7233 phba->sli4_hba.conf_regs_memmap_p =
da0436e9 7234 ioremap(phba->pci_bar0_map, bar0map_len);
2fcee4bf
JS		 7235 if (!phba->sli4_hba.conf_regs_memmap_p) {
7236 dev_printk(KERN_ERR, &pdev->dev,
7237 "ioremap failed for SLI4 PCI config "
7238 "registers.\n");
7239 goto out;
7240 }
7241 lpfc_sli4_bar0_register_memmap(phba, if_type);
da0436e9
JS		 7242 }
7243
c31098ce
JS		 7244 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7245 (pci_resource_start(pdev, 2))) {
2fcee4bf
JS		 7246 /*
7247 * Map SLI4 if type 0 HBA Control Register base to a kernel
7248 * virtual address and setup the registers.
7249 */
7250 phba->pci_bar1_map = pci_resource_start(pdev, 2);
7251 bar1map_len = pci_resource_len(pdev, 2);
7252 phba->sli4_hba.ctrl_regs_memmap_p =
da0436e9 7253 ioremap(phba->pci_bar1_map, bar1map_len);
2fcee4bf
JS		 7254 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7255 dev_printk(KERN_ERR, &pdev->dev,
da0436e9 7256 "ioremap failed for SLI4 HBA control registers.\n");
2fcee4bf
JS		 7257 goto out_iounmap_conf;
7258 }
7259 lpfc_sli4_bar1_register_memmap(phba);
da0436e9
JS		 7260 }
7261
c31098ce
JS		 7262 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7263 (pci_resource_start(pdev, 4))) {
2fcee4bf
JS		 7264 /*
7265 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7266 * virtual address and setup the registers.
7267 */
7268 phba->pci_bar2_map = pci_resource_start(pdev, 4);
7269 bar2map_len = pci_resource_len(pdev, 4);
7270 phba->sli4_hba.drbl_regs_memmap_p =
da0436e9 7271 ioremap(phba->pci_bar2_map, bar2map_len);
2fcee4bf
JS		 7272 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7273 dev_printk(KERN_ERR, &pdev->dev,
da0436e9 7274 "ioremap failed for SLI4 HBA doorbell registers.\n");
2fcee4bf
JS		 7275 goto out_iounmap_ctrl;
7276 }
7277 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7278 if (error)
7279 goto out_iounmap_all;
da0436e9
JS		 7280 }
7281
da0436e9
JS		 7282 return 0;
7283
7284out_iounmap_all:
7285 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7286out_iounmap_ctrl:
7287 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7288out_iounmap_conf:
7289 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7290out:
7291 return error;
7292}
7293
7294/**
7295 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7296 * @phba: pointer to lpfc hba data structure.
7297 *
7298 * This routine is invoked to unset the PCI device memory space for device
7299 * with SLI-4 interface spec.
7300 **/
7301static void
7302lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
7303{
7304 struct pci_dev *pdev;
7305
7306 /* Obtain PCI device reference */
7307 if (!phba->pcidev)
7308 return;
7309 else
7310 pdev = phba->pcidev;
7311
7312 /* Free coherent DMA memory allocated */
7313
7314 /* Unmap I/O memory space */
7315 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7316 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7317 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7318
7319 return;
7320}
7321
7322/**
7323 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7324 * @phba: pointer to lpfc hba data structure.
7325 *
7326 * This routine is invoked to enable the MSI-X interrupt vectors to device
7327 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7328 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7329 * invoked, enables either all or nothing, depending on the current
7330 * availability of PCI vector resources. The device driver is responsible
7331 * for calling the individual request_irq() to register each MSI-X vector
7332 * with a interrupt handler, which is done in this function. Note that
7333 * later when device is unloading, the driver should always call free_irq()
7334 * on all MSI-X vectors it has done request_irq() on before calling
7335 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7336 * will be left with MSI-X enabled and leaks its vectors.
7337 *
7338 * Return codes
af901ca1 7339 * 0 - successful
da0436e9
JS		 7340 * other values - error
7341 **/
7342static int
7343lpfc_sli_enable_msix(struct lpfc_hba *phba)
7344{
7345 int rc, i;
7346 LPFC_MBOXQ_t *pmb;
7347
7348 /* Set up MSI-X multi-message vectors */
7349 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7350 phba->msix_entries[i].entry = i;
7351
7352 /* Configure MSI-X capability structure */
7353 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
7354 ARRAY_SIZE(phba->msix_entries));
7355 if (rc) {
7356 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7357 "0420 PCI enable MSI-X failed (%d)\n", rc);
7358 goto msi_fail_out;
7359 }
7360 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7361 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7362 "0477 MSI-X entry[%d]: vector=x%x "
7363 "message=%d\n", i,
7364 phba->msix_entries[i].vector,
7365 phba->msix_entries[i].entry);
7366 /*
7367 * Assign MSI-X vectors to interrupt handlers
7368 */
7369
7370 /* vector-0 is associated to slow-path handler */
7371 rc = request_irq(phba->msix_entries[0].vector,
7372 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
7373 LPFC_SP_DRIVER_HANDLER_NAME, phba);
7374 if (rc) {
7375 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7376 "0421 MSI-X slow-path request_irq failed "
7377 "(%d)\n", rc);
7378 goto msi_fail_out;
7379 }
7380
7381 /* vector-1 is associated to fast-path handler */
7382 rc = request_irq(phba->msix_entries[1].vector,
7383 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
7384 LPFC_FP_DRIVER_HANDLER_NAME, phba);
7385
7386 if (rc) {
7387 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7388 "0429 MSI-X fast-path request_irq failed "
7389 "(%d)\n", rc);
7390 goto irq_fail_out;
7391 }
7392
7393 /*
7394 * Configure HBA MSI-X attention conditions to messages
7395 */
7396 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7397
7398 if (!pmb) {
7399 rc = -ENOMEM;
7400 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7401 "0474 Unable to allocate memory for issuing "
7402 "MBOX_CONFIG_MSI command\n");
7403 goto mem_fail_out;
7404 }
7405 rc = lpfc_config_msi(phba, pmb);
7406 if (rc)
7407 goto mbx_fail_out;
7408 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7409 if (rc != MBX_SUCCESS) {
7410 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
7411 "0351 Config MSI mailbox command failed, "
7412 "mbxCmd x%x, mbxStatus x%x\n",
7413 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
7414 goto mbx_fail_out;
7415 }
7416
7417 /* Free memory allocated for mailbox command */
7418 mempool_free(pmb, phba->mbox_mem_pool);
7419 return rc;
7420
7421mbx_fail_out:
7422 /* Free memory allocated for mailbox command */
7423 mempool_free(pmb, phba->mbox_mem_pool);
7424
7425mem_fail_out:
7426 /* free the irq already requested */
7427 free_irq(phba->msix_entries[1].vector, phba);
7428
7429irq_fail_out:
7430 /* free the irq already requested */
7431 free_irq(phba->msix_entries[0].vector, phba);
7432
7433msi_fail_out:
7434 /* Unconfigure MSI-X capability structure */
7435 pci_disable_msix(phba->pcidev);
7436 return rc;
7437}
7438
7439/**
7440 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
7441 * @phba: pointer to lpfc hba data structure.
7442 *
7443 * This routine is invoked to release the MSI-X vectors and then disable the
7444 * MSI-X interrupt mode to device with SLI-3 interface spec.
7445 **/
7446static void
7447lpfc_sli_disable_msix(struct lpfc_hba *phba)
7448{
7449 int i;
7450
7451 /* Free up MSI-X multi-message vectors */
7452 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7453 free_irq(phba->msix_entries[i].vector, phba);
7454 /* Disable MSI-X */
7455 pci_disable_msix(phba->pcidev);
7456
7457 return;
7458}
7459
7460/**
7461 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
7462 * @phba: pointer to lpfc hba data structure.
7463 *
7464 * This routine is invoked to enable the MSI interrupt mode to device with
7465 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
7466 * enable the MSI vector. The device driver is responsible for calling the
7467 * request_irq() to register MSI vector with a interrupt the handler, which
7468 * is done in this function.
7469 *
7470 * Return codes
af901ca1 7471 * 0 - successful
da0436e9
JS		 7472 * other values - error
7473 */
7474static int
7475lpfc_sli_enable_msi(struct lpfc_hba *phba)
7476{
7477 int rc;
7478
7479 rc = pci_enable_msi(phba->pcidev);
7480 if (!rc)
7481 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7482 "0462 PCI enable MSI mode success.\n");
7483 else {
7484 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7485 "0471 PCI enable MSI mode failed (%d)\n", rc);
7486 return rc;
7487 }
7488
7489 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7490 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7491 if (rc) {
7492 pci_disable_msi(phba->pcidev);
7493 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7494 "0478 MSI request_irq failed (%d)\n", rc);
7495 }
7496 return rc;
7497}
7498
7499/**
7500 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
7501 * @phba: pointer to lpfc hba data structure.
7502 *
7503 * This routine is invoked to disable the MSI interrupt mode to device with
7504 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
7505 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7506 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7507 * its vector.
7508 */
7509static void
7510lpfc_sli_disable_msi(struct lpfc_hba *phba)
7511{
7512 free_irq(phba->pcidev->irq, phba);
7513 pci_disable_msi(phba->pcidev);
7514 return;
7515}
7516
7517/**
7518 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
7519 * @phba: pointer to lpfc hba data structure.
7520 *
7521 * This routine is invoked to enable device interrupt and associate driver's
7522 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
7523 * spec. Depends on the interrupt mode configured to the driver, the driver
7524 * will try to fallback from the configured interrupt mode to an interrupt
7525 * mode which is supported by the platform, kernel, and device in the order
7526 * of:
7527 * MSI-X -> MSI -> IRQ.
7528 *
7529 * Return codes
af901ca1 7530 * 0 - successful
da0436e9
JS		 7531 * other values - error
7532 **/
7533static uint32_t
7534lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7535{
7536 uint32_t intr_mode = LPFC_INTR_ERROR;
7537 int retval;
7538
7539 if (cfg_mode == 2) {
7540 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
7541 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
7542 if (!retval) {
7543 /* Now, try to enable MSI-X interrupt mode */
7544 retval = lpfc_sli_enable_msix(phba);
7545 if (!retval) {
7546 /* Indicate initialization to MSI-X mode */
7547 phba->intr_type = MSIX;
7548 intr_mode = 2;
7549 }
7550 }
7551 }
7552
7553 /* Fallback to MSI if MSI-X initialization failed */
7554 if (cfg_mode >= 1 && phba->intr_type == NONE) {
7555 retval = lpfc_sli_enable_msi(phba);
7556 if (!retval) {
7557 /* Indicate initialization to MSI mode */
7558 phba->intr_type = MSI;
7559 intr_mode = 1;
7560 }
7561 }
7562
7563 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7564 if (phba->intr_type == NONE) {
7565 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7566 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7567 if (!retval) {
7568 /* Indicate initialization to INTx mode */
7569 phba->intr_type = INTx;
7570 intr_mode = 0;
7571 }
7572 }
7573 return intr_mode;
7574}
7575
7576/**
7577 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
7578 * @phba: pointer to lpfc hba data structure.
7579 *
7580 * This routine is invoked to disable device interrupt and disassociate the
7581 * driver's interrupt handler(s) from interrupt vector(s) to device with
7582 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
7583 * release the interrupt vector(s) for the message signaled interrupt.
7584 **/
7585static void
7586lpfc_sli_disable_intr(struct lpfc_hba *phba)
7587{
7588 /* Disable the currently initialized interrupt mode */
7589 if (phba->intr_type == MSIX)
7590 lpfc_sli_disable_msix(phba);
7591 else if (phba->intr_type == MSI)
7592 lpfc_sli_disable_msi(phba);
7593 else if (phba->intr_type == INTx)
7594 free_irq(phba->pcidev->irq, phba);
7595
7596 /* Reset interrupt management states */
7597 phba->intr_type = NONE;
7598 phba->sli.slistat.sli_intr = 0;
7599
7600 return;
7601}
7602
7603/**
7604 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
7605 * @phba: pointer to lpfc hba data structure.
7606 *
7607 * This routine is invoked to enable the MSI-X interrupt vectors to device
7608 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
7609 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
7610 * enables either all or nothing, depending on the current availability of
7611 * PCI vector resources. The device driver is responsible for calling the
7612 * individual request_irq() to register each MSI-X vector with a interrupt
7613 * handler, which is done in this function. Note that later when device is
7614 * unloading, the driver should always call free_irq() on all MSI-X vectors
7615 * it has done request_irq() on before calling pci_disable_msix(). Failure
7616 * to do so results in a BUG_ON() and a device will be left with MSI-X
7617 * enabled and leaks its vectors.
7618 *
7619 * Return codes
af901ca1 7620 * 0 - successful
da0436e9
JS		 7621 * other values - error
7622 **/
7623static int
7624lpfc_sli4_enable_msix(struct lpfc_hba *phba)
7625{
75baf696 7626 int vectors, rc, index;
da0436e9
JS		 7627
7628 /* Set up MSI-X multi-message vectors */
7629 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
7630 phba->sli4_hba.msix_entries[index].entry = index;
7631
7632 /* Configure MSI-X capability structure */
75baf696
JS		 7633 vectors = phba->sli4_hba.cfg_eqn;
7634enable_msix_vectors:
da0436e9 7635 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
75baf696
JS		 7636 vectors);
7637 if (rc > 1) {
7638 vectors = rc;
7639 goto enable_msix_vectors;
7640 } else if (rc) {
da0436e9
JS		 7641 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7642 "0484 PCI enable MSI-X failed (%d)\n", rc);
7643 goto msi_fail_out;
7644 }
75baf696 7645
da0436e9 7646 /* Log MSI-X vector assignment */
75baf696 7647 for (index = 0; index < vectors; index++)
da0436e9
JS		 7648 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7649 "0489 MSI-X entry[%d]: vector=x%x "
7650 "message=%d\n", index,
7651 phba->sli4_hba.msix_entries[index].vector,
7652 phba->sli4_hba.msix_entries[index].entry);
7653 /*
7654 * Assign MSI-X vectors to interrupt handlers
7655 */
0558056c
JS		 7656 if (vectors > 1)
7657 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7658 &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
7659 LPFC_SP_DRIVER_HANDLER_NAME, phba);
7660 else
7661 /* All Interrupts need to be handled by one EQ */
7662 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7663 &lpfc_sli4_intr_handler, IRQF_SHARED,
7664 LPFC_DRIVER_NAME, phba);
da0436e9
JS		 7665 if (rc) {
7666 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7667 "0485 MSI-X slow-path request_irq failed "
7668 "(%d)\n", rc);
7669 goto msi_fail_out;
7670 }
7671
7672 /* The rest of the vector(s) are associated to fast-path handler(s) */
75baf696 7673 for (index = 1; index < vectors; index++) {
da0436e9
JS		 7674 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
7675 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
7676 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
7677 &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
7678 LPFC_FP_DRIVER_HANDLER_NAME,
7679 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7680 if (rc) {
7681 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7682 "0486 MSI-X fast-path (%d) "
7683 "request_irq failed (%d)\n", index, rc);
7684 goto cfg_fail_out;
7685 }
7686 }
75baf696 7687 phba->sli4_hba.msix_vec_nr = vectors;
da0436e9
JS		 7688
7689 return rc;
7690
7691cfg_fail_out:
7692 /* free the irq already requested */
7693 for (--index; index >= 1; index--)
7694 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
7695 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7696
7697 /* free the irq already requested */
7698 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7699
7700msi_fail_out:
7701 /* Unconfigure MSI-X capability structure */
7702 pci_disable_msix(phba->pcidev);
7703 return rc;
7704}
7705
7706/**
7707 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7708 * @phba: pointer to lpfc hba data structure.
7709 *
7710 * This routine is invoked to release the MSI-X vectors and then disable the
7711 * MSI-X interrupt mode to device with SLI-4 interface spec.
7712 **/
7713static void
7714lpfc_sli4_disable_msix(struct lpfc_hba *phba)
7715{
7716 int index;
7717
7718 /* Free up MSI-X multi-message vectors */
7719 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7720
75baf696 7721 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
da0436e9
JS		 7722 free_irq(phba->sli4_hba.msix_entries[index].vector,
7723 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
75baf696 7724
da0436e9
JS		 7725 /* Disable MSI-X */
7726 pci_disable_msix(phba->pcidev);
7727
7728 return;
7729}
7730
7731/**
7732 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7733 * @phba: pointer to lpfc hba data structure.
7734 *
7735 * This routine is invoked to enable the MSI interrupt mode to device with
7736 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7737 * to enable the MSI vector. The device driver is responsible for calling
7738 * the request_irq() to register MSI vector with a interrupt the handler,
7739 * which is done in this function.
7740 *
7741 * Return codes
af901ca1 7742 * 0 - successful
da0436e9
JS		 7743 * other values - error
7744 **/
7745static int
7746lpfc_sli4_enable_msi(struct lpfc_hba *phba)
7747{
7748 int rc, index;
7749
7750 rc = pci_enable_msi(phba->pcidev);
7751 if (!rc)
7752 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7753 "0487 PCI enable MSI mode success.\n");
7754 else {
7755 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7756 "0488 PCI enable MSI mode failed (%d)\n", rc);
7757 return rc;
7758 }
7759
7760 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7761 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7762 if (rc) {
7763 pci_disable_msi(phba->pcidev);
7764 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7765 "0490 MSI request_irq failed (%d)\n", rc);
75baf696 7766 return rc;
da0436e9
JS		 7767 }
7768
7769 for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
7770 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7771 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7772 }
7773
75baf696 7774 return 0;
da0436e9
JS		 7775}
7776
7777/**
7778 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7779 * @phba: pointer to lpfc hba data structure.
7780 *
7781 * This routine is invoked to disable the MSI interrupt mode to device with
7782 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7783 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7784 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7785 * its vector.
7786 **/
7787static void
7788lpfc_sli4_disable_msi(struct lpfc_hba *phba)
7789{
7790 free_irq(phba->pcidev->irq, phba);
7791 pci_disable_msi(phba->pcidev);
7792 return;
7793}
7794
7795/**
7796 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7797 * @phba: pointer to lpfc hba data structure.
7798 *
7799 * This routine is invoked to enable device interrupt and associate driver's
7800 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7801 * interface spec. Depends on the interrupt mode configured to the driver,
7802 * the driver will try to fallback from the configured interrupt mode to an
7803 * interrupt mode which is supported by the platform, kernel, and device in
7804 * the order of:
7805 * MSI-X -> MSI -> IRQ.
7806 *
7807 * Return codes
af901ca1 7808 * 0 - successful
da0436e9
JS		 7809 * other values - error
7810 **/
7811static uint32_t
7812lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7813{
7814 uint32_t intr_mode = LPFC_INTR_ERROR;
7815 int retval, index;
7816
7817 if (cfg_mode == 2) {
7818 /* Preparation before conf_msi mbox cmd */
7819 retval = 0;
7820 if (!retval) {
7821 /* Now, try to enable MSI-X interrupt mode */
7822 retval = lpfc_sli4_enable_msix(phba);
7823 if (!retval) {
7824 /* Indicate initialization to MSI-X mode */
7825 phba->intr_type = MSIX;
7826 intr_mode = 2;
7827 }
7828 }
7829 }
7830
7831 /* Fallback to MSI if MSI-X initialization failed */
7832 if (cfg_mode >= 1 && phba->intr_type == NONE) {
7833 retval = lpfc_sli4_enable_msi(phba);
7834 if (!retval) {
7835 /* Indicate initialization to MSI mode */
7836 phba->intr_type = MSI;
7837 intr_mode = 1;
7838 }
7839 }
7840
7841 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7842 if (phba->intr_type == NONE) {
7843 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7844 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7845 if (!retval) {
7846 /* Indicate initialization to INTx mode */
7847 phba->intr_type = INTx;
7848 intr_mode = 0;
7849 for (index = 0; index < phba->cfg_fcp_eq_count;
7850 index++) {
7851 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7852 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7853 }
7854 }
7855 }
7856 return intr_mode;
7857}
7858
7859/**
7860 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7861 * @phba: pointer to lpfc hba data structure.
7862 *
7863 * This routine is invoked to disable device interrupt and disassociate
7864 * the driver's interrupt handler(s) from interrupt vector(s) to device
7865 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7866 * will release the interrupt vector(s) for the message signaled interrupt.
7867 **/
7868static void
7869lpfc_sli4_disable_intr(struct lpfc_hba *phba)
7870{
7871 /* Disable the currently initialized interrupt mode */
7872 if (phba->intr_type == MSIX)
7873 lpfc_sli4_disable_msix(phba);
7874 else if (phba->intr_type == MSI)
7875 lpfc_sli4_disable_msi(phba);
7876 else if (phba->intr_type == INTx)
7877 free_irq(phba->pcidev->irq, phba);
7878
7879 /* Reset interrupt management states */
7880 phba->intr_type = NONE;
7881 phba->sli.slistat.sli_intr = 0;
7882
7883 return;
7884}
7885
7886/**
7887 * lpfc_unset_hba - Unset SLI3 hba device initialization
7888 * @phba: pointer to lpfc hba data structure.
7889 *
7890 * This routine is invoked to unset the HBA device initialization steps to
7891 * a device with SLI-3 interface spec.
7892 **/
7893static void
7894lpfc_unset_hba(struct lpfc_hba *phba)
7895{
7896 struct lpfc_vport *vport = phba->pport;
7897 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7898
7899 spin_lock_irq(shost->host_lock);
7900 vport->load_flag |= FC_UNLOADING;
7901 spin_unlock_irq(shost->host_lock);
7902
7903 lpfc_stop_hba_timers(phba);
7904
7905 phba->pport->work_port_events = 0;
7906
7907 lpfc_sli_hba_down(phba);
7908
7909 lpfc_sli_brdrestart(phba);
7910
7911 lpfc_sli_disable_intr(phba);
7912
7913 return;
7914}
7915
7916/**
7917 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7918 * @phba: pointer to lpfc hba data structure.
7919 *
7920 * This routine is invoked to unset the HBA device initialization steps to
7921 * a device with SLI-4 interface spec.
7922 **/
7923static void
7924lpfc_sli4_unset_hba(struct lpfc_hba *phba)
7925{
7926 struct lpfc_vport *vport = phba->pport;
7927 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7928
7929 spin_lock_irq(shost->host_lock);
7930 vport->load_flag |= FC_UNLOADING;
7931 spin_unlock_irq(shost->host_lock);
7932
7933 phba->pport->work_port_events = 0;
7934
3677a3a7
JS		 7935 /* Stop the SLI4 device port */
7936 lpfc_stop_port(phba);
da0436e9
JS		 7937
7938 lpfc_sli4_disable_intr(phba);
7939
3677a3a7
JS		 7940 /* Reset SLI4 HBA FCoE function */
7941 lpfc_pci_function_reset(phba);
7942
da0436e9
JS		 7943 return;
7944}
7945
5af5eee7
JS		 7946/**
7947 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
7948 * @phba: Pointer to HBA context object.
7949 *
7950 * This function is called in the SLI4 code path to wait for completion
7951 * of device's XRIs exchange busy. It will check the XRI exchange busy
7952 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
7953 * that, it will check the XRI exchange busy on outstanding FCP and ELS
7954 * I/Os every 30 seconds, log error message, and wait forever. Only when
7955 * all XRI exchange busy complete, the driver unload shall proceed with
7956 * invoking the function reset ioctl mailbox command to the CNA and the
7957 * the rest of the driver unload resource release.
7958 **/
7959static void
7960lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
7961{
7962 int wait_time = 0;
7963 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
7964 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7965
7966 while (!fcp_xri_cmpl || !els_xri_cmpl) {
7967 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
7968 if (!fcp_xri_cmpl)
7969 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7970 "2877 FCP XRI exchange busy "
7971 "wait time: %d seconds.\n",
7972 wait_time/1000);
7973 if (!els_xri_cmpl)
7974 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7975 "2878 ELS XRI exchange busy "
7976 "wait time: %d seconds.\n",
7977 wait_time/1000);
7978 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
7979 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
7980 } else {
7981 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
7982 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
7983 }
7984 fcp_xri_cmpl =
7985 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
7986 els_xri_cmpl =
7987 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7988 }
7989}
7990
da0436e9
JS		 7991/**
7992 * lpfc_sli4_hba_unset - Unset the fcoe hba
7993 * @phba: Pointer to HBA context object.
7994 *
7995 * This function is called in the SLI4 code path to reset the HBA's FCoE
7996 * function. The caller is not required to hold any lock. This routine
7997 * issues PCI function reset mailbox command to reset the FCoE function.
7998 * At the end of the function, it calls lpfc_hba_down_post function to
7999 * free any pending commands.
8000 **/
8001static void
8002lpfc_sli4_hba_unset(struct lpfc_hba *phba)
8003{
8004 int wait_cnt = 0;
8005 LPFC_MBOXQ_t *mboxq;
912e3acd 8006 struct pci_dev *pdev = phba->pcidev;
da0436e9
JS		 8007
8008 lpfc_stop_hba_timers(phba);
8009 phba->sli4_hba.intr_enable = 0;
8010
8011 /*
8012 * Gracefully wait out the potential current outstanding asynchronous
8013 * mailbox command.
8014 */
8015
8016 /* First, block any pending async mailbox command from posted */
8017 spin_lock_irq(&phba->hbalock);
8018 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8019 spin_unlock_irq(&phba->hbalock);
8020 /* Now, trying to wait it out if we can */
8021 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8022 msleep(10);
8023 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
8024 break;
8025 }
8026 /* Forcefully release the outstanding mailbox command if timed out */
8027 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8028 spin_lock_irq(&phba->hbalock);
8029 mboxq = phba->sli.mbox_active;
8030 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8031 __lpfc_mbox_cmpl_put(phba, mboxq);
8032 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8033 phba->sli.mbox_active = NULL;
8034 spin_unlock_irq(&phba->hbalock);
8035 }
8036
5af5eee7
JS		 8037 /* Abort all iocbs associated with the hba */
8038 lpfc_sli_hba_iocb_abort(phba);
8039
8040 /* Wait for completion of device XRI exchange busy */
8041 lpfc_sli4_xri_exchange_busy_wait(phba);
8042
da0436e9
JS		 8043 /* Disable PCI subsystem interrupt */
8044 lpfc_sli4_disable_intr(phba);
8045
912e3acd
JS		 8046 /* Disable SR-IOV if enabled */
8047 if (phba->cfg_sriov_nr_virtfn)
8048 pci_disable_sriov(pdev);
8049
da0436e9
JS		 8050 /* Stop kthread signal shall trigger work_done one more time */
8051 kthread_stop(phba->worker_thread);
8052
3677a3a7
JS		 8053 /* Reset SLI4 HBA FCoE function */
8054 lpfc_pci_function_reset(phba);
8055
da0436e9
JS		 8056 /* Stop the SLI4 device port */
8057 phba->pport->work_port_events = 0;
8058}
8059
28baac74
JS		 8060 /**
8061 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
8062 * @phba: Pointer to HBA context object.
8063 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8064 *
8065 * This function is called in the SLI4 code path to read the port's
8066 * sli4 capabilities.
8067 *
8068 * This function may be be called from any context that can block-wait
8069 * for the completion. The expectation is that this routine is called
8070 * typically from probe_one or from the online routine.
8071 **/
8072int
8073lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8074{
8075 int rc;
8076 struct lpfc_mqe *mqe;
8077 struct lpfc_pc_sli4_params *sli4_params;
8078 uint32_t mbox_tmo;
8079
8080 rc = 0;
8081 mqe = &mboxq->u.mqe;
8082
8083 /* Read the port's SLI4 Parameters port capabilities */
fedd3b7b 8084 lpfc_pc_sli4_params(mboxq);
28baac74
JS		 8085 if (!phba->sli4_hba.intr_enable)
8086 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8087 else {
8088 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES);
8089 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8090 }
8091
8092 if (unlikely(rc))
8093 return 1;
8094
8095 sli4_params = &phba->sli4_hba.pc_sli4_params;
8096 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
8097 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
8098 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
8099 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
8100 &mqe->un.sli4_params);
8101 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
8102 &mqe->un.sli4_params);
8103 sli4_params->proto_types = mqe->un.sli4_params.word3;
8104 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
8105 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
8106 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
8107 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
8108 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
8109 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
8110 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
8111 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
8112 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
8113 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
8114 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
8115 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
8116 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
8117 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
8118 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
8119 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
8120 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
8121 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
8122 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
8123 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
0558056c
JS		 8124
8125 /* Make sure that sge_supp_len can be handled by the driver */
8126 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8127 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8128
28baac74
JS		 8129 return rc;
8130}
8131
fedd3b7b
JS		 8132/**
8133 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
8134 * @phba: Pointer to HBA context object.
8135 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8136 *
8137 * This function is called in the SLI4 code path to read the port's
8138 * sli4 capabilities.
8139 *
8140 * This function may be be called from any context that can block-wait
8141 * for the completion. The expectation is that this routine is called
8142 * typically from probe_one or from the online routine.
8143 **/
8144int
8145lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8146{
8147 int rc;
8148 struct lpfc_mqe *mqe = &mboxq->u.mqe;
8149 struct lpfc_pc_sli4_params *sli4_params;
8150 int length;
8151 struct lpfc_sli4_parameters *mbx_sli4_parameters;
8152
6d368e53
JS		 8153 /*
8154 * By default, the driver assumes the SLI4 port requires RPI
8155 * header postings. The SLI4_PARAM response will correct this
8156 * assumption.
8157 */
8158 phba->sli4_hba.rpi_hdrs_in_use = 1;
8159
fedd3b7b
JS		 8160 /* Read the port's SLI4 Config Parameters */
8161 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
8162 sizeof(struct lpfc_sli4_cfg_mhdr));
8163 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8164 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
8165 length, LPFC_SLI4_MBX_EMBED);
8166 if (!phba->sli4_hba.intr_enable)
8167 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8168 else
8169 rc = lpfc_sli_issue_mbox_wait(phba, mboxq,
8170 lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG));
8171 if (unlikely(rc))
8172 return rc;
8173 sli4_params = &phba->sli4_hba.pc_sli4_params;
8174 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
8175 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
8176 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
8177 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
8178 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
8179 mbx_sli4_parameters);
8180 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
8181 mbx_sli4_parameters);
8182 if (bf_get(cfg_phwq, mbx_sli4_parameters))
8183 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
8184 else
8185 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
8186 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
8187 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
8188 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
8189 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
8190 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
8191 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
8192 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
8193 mbx_sli4_parameters);
8194 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
8195 mbx_sli4_parameters);
6d368e53
JS		 8196 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
8197 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
0558056c
JS		 8198
8199 /* Make sure that sge_supp_len can be handled by the driver */
8200 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8201 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8202
fedd3b7b
JS		 8203 return 0;
8204}
8205
da0436e9
JS		 8206/**
8207 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
8208 * @pdev: pointer to PCI device
8209 * @pid: pointer to PCI device identifier
8210 *
8211 * This routine is to be called to attach a device with SLI-3 interface spec
8212 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8213 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8214 * information of the device and driver to see if the driver state that it can
8215 * support this kind of device. If the match is successful, the driver core
8216 * invokes this routine. If this routine determines it can claim the HBA, it
8217 * does all the initialization that it needs to do to handle the HBA properly.
8218 *
8219 * Return code
8220 * 0 - driver can claim the device
8221 * negative value - driver can not claim the device
8222 **/
8223static int __devinit
8224lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
8225{
8226 struct lpfc_hba *phba;
8227 struct lpfc_vport *vport = NULL;
6669f9bb 8228 struct Scsi_Host *shost = NULL;
da0436e9
JS		 8229 int error;
8230 uint32_t cfg_mode, intr_mode;
8231
8232 /* Allocate memory for HBA structure */
8233 phba = lpfc_hba_alloc(pdev);
8234 if (!phba)
8235 return -ENOMEM;
8236
8237 /* Perform generic PCI device enabling operation */
8238 error = lpfc_enable_pci_dev(phba);
8239 if (error) {
8240 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8241 "1401 Failed to enable pci device.\n");
8242 goto out_free_phba;
8243 }
8244
8245 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
8246 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
8247 if (error)
8248 goto out_disable_pci_dev;
8249
8250 /* Set up SLI-3 specific device PCI memory space */
8251 error = lpfc_sli_pci_mem_setup(phba);
8252 if (error) {
8253 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8254 "1402 Failed to set up pci memory space.\n");
8255 goto out_disable_pci_dev;
8256 }
8257
8258 /* Set up phase-1 common device driver resources */
8259 error = lpfc_setup_driver_resource_phase1(phba);
8260 if (error) {
8261 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8262 "1403 Failed to set up driver resource.\n");
8263 goto out_unset_pci_mem_s3;
8264 }
8265
8266 /* Set up SLI-3 specific device driver resources */
8267 error = lpfc_sli_driver_resource_setup(phba);
8268 if (error) {
8269 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8270 "1404 Failed to set up driver resource.\n");
8271 goto out_unset_pci_mem_s3;
8272 }
8273
8274 /* Initialize and populate the iocb list per host */
8275 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
8276 if (error) {
8277 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8278 "1405 Failed to initialize iocb list.\n");
8279 goto out_unset_driver_resource_s3;
8280 }
8281
8282 /* Set up common device driver resources */
8283 error = lpfc_setup_driver_resource_phase2(phba);
8284 if (error) {
8285 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8286 "1406 Failed to set up driver resource.\n");
8287 goto out_free_iocb_list;
8288 }
8289
8290 /* Create SCSI host to the physical port */
8291 error = lpfc_create_shost(phba);
8292 if (error) {
8293 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8294 "1407 Failed to create scsi host.\n");
8295 goto out_unset_driver_resource;
8296 }
8297
8298 /* Configure sysfs attributes */
8299 vport = phba->pport;
8300 error = lpfc_alloc_sysfs_attr(vport);
8301 if (error) {
8302 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8303 "1476 Failed to allocate sysfs attr\n");
8304 goto out_destroy_shost;
8305 }
8306
6669f9bb 8307 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
da0436e9
JS		 8308 /* Now, trying to enable interrupt and bring up the device */
8309 cfg_mode = phba->cfg_use_msi;
8310 while (true) {
8311 /* Put device to a known state before enabling interrupt */
8312 lpfc_stop_port(phba);
8313 /* Configure and enable interrupt */
8314 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
8315 if (intr_mode == LPFC_INTR_ERROR) {
8316 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8317 "0431 Failed to enable interrupt.\n");
8318 error = -ENODEV;
8319 goto out_free_sysfs_attr;
8320 }
8321 /* SLI-3 HBA setup */
8322 if (lpfc_sli_hba_setup(phba)) {
8323 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8324 "1477 Failed to set up hba\n");
8325 error = -ENODEV;
8326 goto out_remove_device;
8327 }
8328
8329 /* Wait 50ms for the interrupts of previous mailbox commands */
8330 msleep(50);
8331 /* Check active interrupts on message signaled interrupts */
8332 if (intr_mode == 0 ||
8333 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
8334 /* Log the current active interrupt mode */
8335 phba->intr_mode = intr_mode;
8336 lpfc_log_intr_mode(phba, intr_mode);
8337 break;
8338 } else {
8339 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8340 "0447 Configure interrupt mode (%d) "
8341 "failed active interrupt test.\n",
8342 intr_mode);
8343 /* Disable the current interrupt mode */
8344 lpfc_sli_disable_intr(phba);
8345 /* Try next level of interrupt mode */
8346 cfg_mode = --intr_mode;
8347 }
8348 }
8349
8350 /* Perform post initialization setup */
8351 lpfc_post_init_setup(phba);
8352
8353 /* Check if there are static vports to be created. */
8354 lpfc_create_static_vport(phba);
8355
8356 return 0;
8357
8358out_remove_device:
8359 lpfc_unset_hba(phba);
8360out_free_sysfs_attr:
8361 lpfc_free_sysfs_attr(vport);
8362out_destroy_shost:
8363 lpfc_destroy_shost(phba);
8364out_unset_driver_resource:
8365 lpfc_unset_driver_resource_phase2(phba);
8366out_free_iocb_list:
8367 lpfc_free_iocb_list(phba);
8368out_unset_driver_resource_s3:
8369 lpfc_sli_driver_resource_unset(phba);
8370out_unset_pci_mem_s3:
8371 lpfc_sli_pci_mem_unset(phba);
8372out_disable_pci_dev:
8373 lpfc_disable_pci_dev(phba);
6669f9bb
JS		 8374 if (shost)
8375 scsi_host_put(shost);
da0436e9
JS		 8376out_free_phba:
8377 lpfc_hba_free(phba);
8378 return error;
8379}
8380
8381/**
8382 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8383 * @pdev: pointer to PCI device
8384 *
8385 * This routine is to be called to disattach a device with SLI-3 interface
8386 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8387 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8388 * device to be removed from the PCI subsystem properly.
8389 **/
8390static void __devexit
8391lpfc_pci_remove_one_s3(struct pci_dev *pdev)
8392{
8393 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8394 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8395 struct lpfc_vport **vports;
8396 struct lpfc_hba *phba = vport->phba;
8397 int i;
8398 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
8399
8400 spin_lock_irq(&phba->hbalock);
8401 vport->load_flag |= FC_UNLOADING;
8402 spin_unlock_irq(&phba->hbalock);
8403
8404 lpfc_free_sysfs_attr(vport);
8405
8406 /* Release all the vports against this physical port */
8407 vports = lpfc_create_vport_work_array(phba);
8408 if (vports != NULL)
8409 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8410 fc_vport_terminate(vports[i]->fc_vport);
8411 lpfc_destroy_vport_work_array(phba, vports);
8412
8413 /* Remove FC host and then SCSI host with the physical port */
8414 fc_remove_host(shost);
8415 scsi_remove_host(shost);
8416 lpfc_cleanup(vport);
8417
8418 /*
8419 * Bring down the SLI Layer. This step disable all interrupts,
8420 * clears the rings, discards all mailbox commands, and resets
8421 * the HBA.
8422 */
8423
48e34d0f 8424 /* HBA interrupt will be disabled after this call */
da0436e9
JS		 8425 lpfc_sli_hba_down(phba);
8426 /* Stop kthread signal shall trigger work_done one more time */
8427 kthread_stop(phba->worker_thread);
8428 /* Final cleanup of txcmplq and reset the HBA */
8429 lpfc_sli_brdrestart(phba);
8430
8431 lpfc_stop_hba_timers(phba);
8432 spin_lock_irq(&phba->hbalock);
8433 list_del_init(&vport->listentry);
8434 spin_unlock_irq(&phba->hbalock);
8435
8436 lpfc_debugfs_terminate(vport);
8437
912e3acd
JS		 8438 /* Disable SR-IOV if enabled */
8439 if (phba->cfg_sriov_nr_virtfn)
8440 pci_disable_sriov(pdev);
8441
da0436e9
JS		 8442 /* Disable interrupt */
8443 lpfc_sli_disable_intr(phba);
8444
8445 pci_set_drvdata(pdev, NULL);
8446 scsi_host_put(shost);
8447
8448 /*
8449 * Call scsi_free before mem_free since scsi bufs are released to their
8450 * corresponding pools here.
8451 */
8452 lpfc_scsi_free(phba);
8453 lpfc_mem_free_all(phba);
8454
8455 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
8456 phba->hbqslimp.virt, phba->hbqslimp.phys);
8457
8458 /* Free resources associated with SLI2 interface */
8459 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
8460 phba->slim2p.virt, phba->slim2p.phys);
8461
8462 /* unmap adapter SLIM and Control Registers */
8463 iounmap(phba->ctrl_regs_memmap_p);
8464 iounmap(phba->slim_memmap_p);
8465
8466 lpfc_hba_free(phba);
8467
8468 pci_release_selected_regions(pdev, bars);
8469 pci_disable_device(pdev);
8470}
8471
8472/**
8473 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
8474 * @pdev: pointer to PCI device
8475 * @msg: power management message
8476 *
8477 * This routine is to be called from the kernel's PCI subsystem to support
8478 * system Power Management (PM) to device with SLI-3 interface spec. When
8479 * PM invokes this method, it quiesces the device by stopping the driver's
8480 * worker thread for the device, turning off device's interrupt and DMA,
8481 * and bring the device offline. Note that as the driver implements the
8482 * minimum PM requirements to a power-aware driver's PM support for the
8483 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8484 * to the suspend() method call will be treated as SUSPEND and the driver will
8485 * fully reinitialize its device during resume() method call, the driver will
8486 * set device to PCI_D3hot state in PCI config space instead of setting it
8487 * according to the @msg provided by the PM.
8488 *
8489 * Return code
8490 * 0 - driver suspended the device
8491 * Error otherwise
8492 **/
8493static int
8494lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
8495{
8496 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8497 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8498
8499 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8500 "0473 PCI device Power Management suspend.\n");
8501
8502 /* Bring down the device */
8503 lpfc_offline_prep(phba);
8504 lpfc_offline(phba);
8505 kthread_stop(phba->worker_thread);
8506
8507 /* Disable interrupt from device */
8508 lpfc_sli_disable_intr(phba);
8509
8510 /* Save device state to PCI config space */
8511 pci_save_state(pdev);
8512 pci_set_power_state(pdev, PCI_D3hot);
8513
8514 return 0;
8515}
8516
8517/**
8518 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
8519 * @pdev: pointer to PCI device
8520 *
8521 * This routine is to be called from the kernel's PCI subsystem to support
8522 * system Power Management (PM) to device with SLI-3 interface spec. When PM
8523 * invokes this method, it restores the device's PCI config space state and
8524 * fully reinitializes the device and brings it online. Note that as the
8525 * driver implements the minimum PM requirements to a power-aware driver's
8526 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
8527 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
8528 * driver will fully reinitialize its device during resume() method call,
8529 * the device will be set to PCI_D0 directly in PCI config space before
8530 * restoring the state.
8531 *
8532 * Return code
8533 * 0 - driver suspended the device
8534 * Error otherwise
8535 **/
8536static int
8537lpfc_pci_resume_one_s3(struct pci_dev *pdev)
8538{
8539 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8540 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8541 uint32_t intr_mode;
8542 int error;
8543
8544 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8545 "0452 PCI device Power Management resume.\n");
8546
8547 /* Restore device state from PCI config space */
8548 pci_set_power_state(pdev, PCI_D0);
8549 pci_restore_state(pdev);
0d878419 8550
1dfb5a47
JS		 8551 /*
8552 * As the new kernel behavior of pci_restore_state() API call clears
8553 * device saved_state flag, need to save the restored state again.
8554 */
8555 pci_save_state(pdev);
8556
da0436e9
JS		 8557 if (pdev->is_busmaster)
8558 pci_set_master(pdev);
8559
8560 /* Startup the kernel thread for this host adapter. */
8561 phba->worker_thread = kthread_run(lpfc_do_work, phba,
8562 "lpfc_worker_%d", phba->brd_no);
8563 if (IS_ERR(phba->worker_thread)) {
8564 error = PTR_ERR(phba->worker_thread);
8565 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8566 "0434 PM resume failed to start worker "
8567 "thread: error=x%x.\n", error);
8568 return error;
8569 }
8570
8571 /* Configure and enable interrupt */
8572 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8573 if (intr_mode == LPFC_INTR_ERROR) {
8574 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8575 "0430 PM resume Failed to enable interrupt\n");
8576 return -EIO;
8577 } else
8578 phba->intr_mode = intr_mode;
8579
8580 /* Restart HBA and bring it online */
8581 lpfc_sli_brdrestart(phba);
8582 lpfc_online(phba);
8583
8584 /* Log the current active interrupt mode */
8585 lpfc_log_intr_mode(phba, phba->intr_mode);
8586
8587 return 0;
8588}
8589
891478a2
JS		 8590/**
8591 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
8592 * @phba: pointer to lpfc hba data structure.
8593 *
8594 * This routine is called to prepare the SLI3 device for PCI slot recover. It
e2af0d2e 8595 * aborts all the outstanding SCSI I/Os to the pci device.
891478a2
JS		 8596 **/
8597static void
8598lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
8599{
e2af0d2e
JS		 8600 struct lpfc_sli *psli = &phba->sli;
8601 struct lpfc_sli_ring *pring;
8602
891478a2
JS		 8603 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8604 "2723 PCI channel I/O abort preparing for recovery\n");
e2af0d2e
JS		 8605
8606 /*
8607 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8608 * and let the SCSI mid-layer to retry them to recover.
8609 */
8610 pring = &psli->ring[psli->fcp_ring];
8611 lpfc_sli_abort_iocb_ring(phba, pring);
891478a2
JS		 8612}
8613
0d878419
JS		 8614/**
8615 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
8616 * @phba: pointer to lpfc hba data structure.
8617 *
8618 * This routine is called to prepare the SLI3 device for PCI slot reset. It
8619 * disables the device interrupt and pci device, and aborts the internal FCP
8620 * pending I/Os.
8621 **/
8622static void
8623lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
8624{
0d878419 8625 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
891478a2 8626 "2710 PCI channel disable preparing for reset\n");
e2af0d2e 8627
75baf696
JS		 8628 /* Block any management I/Os to the device */
8629 lpfc_block_mgmt_io(phba);
8630
e2af0d2e
JS		 8631 /* Block all SCSI devices' I/Os on the host */
8632 lpfc_scsi_dev_block(phba);
8633
8634 /* stop all timers */
8635 lpfc_stop_hba_timers(phba);
8636
0d878419
JS		 8637 /* Disable interrupt and pci device */
8638 lpfc_sli_disable_intr(phba);
8639 pci_disable_device(phba->pcidev);
75baf696 8640
e2af0d2e
JS		 8641 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8642 lpfc_sli_flush_fcp_rings(phba);
0d878419
JS		 8643}
8644
8645/**
8646 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
8647 * @phba: pointer to lpfc hba data structure.
8648 *
8649 * This routine is called to prepare the SLI3 device for PCI slot permanently
8650 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8651 * pending I/Os.
8652 **/
8653static void
75baf696 8654lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
0d878419
JS		 8655{
8656 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
891478a2 8657 "2711 PCI channel permanent disable for failure\n");
e2af0d2e
JS		 8658 /* Block all SCSI devices' I/Os on the host */
8659 lpfc_scsi_dev_block(phba);
8660
8661 /* stop all timers */
8662 lpfc_stop_hba_timers(phba);
8663
0d878419
JS		 8664 /* Clean up all driver's outstanding SCSI I/Os */
8665 lpfc_sli_flush_fcp_rings(phba);
8666}
8667
da0436e9
JS		 8668/**
8669 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
8670 * @pdev: pointer to PCI device.
8671 * @state: the current PCI connection state.
8672 *
8673 * This routine is called from the PCI subsystem for I/O error handling to
8674 * device with SLI-3 interface spec. This function is called by the PCI
8675 * subsystem after a PCI bus error affecting this device has been detected.
8676 * When this function is invoked, it will need to stop all the I/Os and
8677 * interrupt(s) to the device. Once that is done, it will return
8678 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
8679 * as desired.
8680 *
8681 * Return codes
0d878419 8682 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
da0436e9
JS		 8683 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8684 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8685 **/
8686static pci_ers_result_t
8687lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
8688{
8689 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8690 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
da0436e9 8691
0d878419
JS		 8692 switch (state) {
8693 case pci_channel_io_normal:
891478a2
JS		 8694 /* Non-fatal error, prepare for recovery */
8695 lpfc_sli_prep_dev_for_recover(phba);
0d878419
JS		 8696 return PCI_ERS_RESULT_CAN_RECOVER;
8697 case pci_channel_io_frozen:
8698 /* Fatal error, prepare for slot reset */
8699 lpfc_sli_prep_dev_for_reset(phba);
8700 return PCI_ERS_RESULT_NEED_RESET;
8701 case pci_channel_io_perm_failure:
8702 /* Permanent failure, prepare for device down */
75baf696 8703 lpfc_sli_prep_dev_for_perm_failure(phba);
da0436e9 8704 return PCI_ERS_RESULT_DISCONNECT;
0d878419
JS		 8705 default:
8706 /* Unknown state, prepare and request slot reset */
8707 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8708 "0472 Unknown PCI error state: x%x\n", state);
8709 lpfc_sli_prep_dev_for_reset(phba);
8710 return PCI_ERS_RESULT_NEED_RESET;
da0436e9 8711 }
da0436e9
JS		 8712}
8713
8714/**
8715 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
8716 * @pdev: pointer to PCI device.
8717 *
8718 * This routine is called from the PCI subsystem for error handling to
8719 * device with SLI-3 interface spec. This is called after PCI bus has been
8720 * reset to restart the PCI card from scratch, as if from a cold-boot.
8721 * During the PCI subsystem error recovery, after driver returns
8722 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8723 * recovery and then call this routine before calling the .resume method
8724 * to recover the device. This function will initialize the HBA device,
8725 * enable the interrupt, but it will just put the HBA to offline state
8726 * without passing any I/O traffic.
8727 *
8728 * Return codes
8729 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8730 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8731 */
8732static pci_ers_result_t
8733lpfc_io_slot_reset_s3(struct pci_dev *pdev)
8734{
8735 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8736 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8737 struct lpfc_sli *psli = &phba->sli;
8738 uint32_t intr_mode;
8739
8740 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
8741 if (pci_enable_device_mem(pdev)) {
8742 printk(KERN_ERR "lpfc: Cannot re-enable "
8743 "PCI device after reset.\n");
8744 return PCI_ERS_RESULT_DISCONNECT;
8745 }
8746
8747 pci_restore_state(pdev);
1dfb5a47
JS		 8748
8749 /*
8750 * As the new kernel behavior of pci_restore_state() API call clears
8751 * device saved_state flag, need to save the restored state again.
8752 */
8753 pci_save_state(pdev);
8754
da0436e9
JS		 8755 if (pdev->is_busmaster)
8756 pci_set_master(pdev);
8757
8758 spin_lock_irq(&phba->hbalock);
8759 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8760 spin_unlock_irq(&phba->hbalock);
8761
8762 /* Configure and enable interrupt */
8763 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8764 if (intr_mode == LPFC_INTR_ERROR) {
8765 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8766 "0427 Cannot re-enable interrupt after "
8767 "slot reset.\n");
8768 return PCI_ERS_RESULT_DISCONNECT;
8769 } else
8770 phba->intr_mode = intr_mode;
8771
75baf696
JS		 8772 /* Take device offline, it will perform cleanup */
8773 lpfc_offline_prep(phba);
da0436e9
JS		 8774 lpfc_offline(phba);
8775 lpfc_sli_brdrestart(phba);
8776
8777 /* Log the current active interrupt mode */
8778 lpfc_log_intr_mode(phba, phba->intr_mode);
8779
8780 return PCI_ERS_RESULT_RECOVERED;
8781}
8782
8783/**
8784 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
8785 * @pdev: pointer to PCI device
8786 *
8787 * This routine is called from the PCI subsystem for error handling to device
8788 * with SLI-3 interface spec. It is called when kernel error recovery tells
8789 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8790 * error recovery. After this call, traffic can start to flow from this device
8791 * again.
8792 */
8793static void
8794lpfc_io_resume_s3(struct pci_dev *pdev)
8795{
8796 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8797 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3772a991 8798
e2af0d2e 8799 /* Bring device online, it will be no-op for non-fatal error resume */
da0436e9 8800 lpfc_online(phba);
0d878419
JS		 8801
8802 /* Clean up Advanced Error Reporting (AER) if needed */
8803 if (phba->hba_flag & HBA_AER_ENABLED)
8804 pci_cleanup_aer_uncorrect_error_status(pdev);
da0436e9 8805}
3772a991 8806
da0436e9
JS		 8807/**
8808 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
8809 * @phba: pointer to lpfc hba data structure.
8810 *
8811 * returns the number of ELS/CT IOCBs to reserve
8812 **/
8813int
8814lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
8815{
8816 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
8817
f1126688
JS		 8818 if (phba->sli_rev == LPFC_SLI_REV4) {
8819 if (max_xri <= 100)
6a9c52cf 8820 return 10;
f1126688 8821 else if (max_xri <= 256)
6a9c52cf 8822 return 25;
f1126688 8823 else if (max_xri <= 512)
6a9c52cf 8824 return 50;
f1126688 8825 else if (max_xri <= 1024)
6a9c52cf 8826 return 100;
f1126688 8827 else
6a9c52cf 8828 return 150;
f1126688
JS		 8829 } else
8830 return 0;
3772a991
JS		 8831}
8832
52d52440
JS		 8833/**
8834 * lpfc_write_firmware - attempt to write a firmware image to the port
8835 * @phba: pointer to lpfc hba data structure.
8836 * @fw: pointer to firmware image returned from request_firmware.
8837 *
8838 * returns the number of bytes written if write is successful.
8839 * returns a negative error value if there were errors.
8840 * returns 0 if firmware matches currently active firmware on port.
8841 **/
8842int
8843lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw)
8844{
8845 char fwrev[32];
8846 struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data;
8847 struct list_head dma_buffer_list;
8848 int i, rc = 0;
8849 struct lpfc_dmabuf *dmabuf, *next;
8850 uint32_t offset = 0, temp_offset = 0;
8851
8852 INIT_LIST_HEAD(&dma_buffer_list);
8853 if ((image->magic_number != LPFC_GROUP_OJECT_MAGIC_NUM) ||
8854 (bf_get(lpfc_grp_hdr_file_type, image) != LPFC_FILE_TYPE_GROUP) ||
8855 (bf_get(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
8856 (image->size != fw->size)) {
8857 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8858 "3022 Invalid FW image found. "
8859 "Magic:%d Type:%x ID:%x\n",
8860 image->magic_number,
8861 bf_get(lpfc_grp_hdr_file_type, image),
8862 bf_get(lpfc_grp_hdr_id, image));
8863 return -EINVAL;
8864 }
8865 lpfc_decode_firmware_rev(phba, fwrev, 1);
88a2cfbb 8866 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
52d52440
JS		 8867 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8868 "3023 Updating Firmware. Current Version:%s "
8869 "New Version:%s\n",
88a2cfbb 8870 fwrev, image->revision);
52d52440
JS		 8871 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
8872 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
8873 GFP_KERNEL);
8874 if (!dmabuf) {
8875 rc = -ENOMEM;
8876 goto out;
8877 }
8878 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
8879 SLI4_PAGE_SIZE,
8880 &dmabuf->phys,
8881 GFP_KERNEL);
8882 if (!dmabuf->virt) {
8883 kfree(dmabuf);
8884 rc = -ENOMEM;
8885 goto out;
8886 }
8887 list_add_tail(&dmabuf->list, &dma_buffer_list);
8888 }
8889 while (offset < fw->size) {
8890 temp_offset = offset;
8891 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
8892 if (offset + SLI4_PAGE_SIZE > fw->size) {
8893 temp_offset += fw->size - offset;
8894 memcpy(dmabuf->virt,
8895 fw->data + temp_offset,
8896 fw->size - offset);
8897 break;
8898 }
52d52440
JS		 8899 memcpy(dmabuf->virt, fw->data + temp_offset,
8900 SLI4_PAGE_SIZE);
88a2cfbb 8901 temp_offset += SLI4_PAGE_SIZE;
52d52440
JS		 8902 }
8903 rc = lpfc_wr_object(phba, &dma_buffer_list,
8904 (fw->size - offset), &offset);
8905 if (rc) {
8906 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8907 "3024 Firmware update failed. "
8908 "%d\n", rc);
8909 goto out;
8910 }
8911 }
8912 rc = offset;
8913 }
8914out:
8915 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
8916 list_del(&dmabuf->list);
8917 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
8918 dmabuf->virt, dmabuf->phys);
8919 kfree(dmabuf);
8920 }
8921 return rc;
8922}
8923
3772a991 8924/**
da0436e9 8925 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
3772a991
JS		 8926 * @pdev: pointer to PCI device
8927 * @pid: pointer to PCI device identifier
8928 *
da0436e9
JS		 8929 * This routine is called from the kernel's PCI subsystem to device with
8930 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
3772a991 8931 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
da0436e9
JS		 8932 * information of the device and driver to see if the driver state that it
8933 * can support this kind of device. If the match is successful, the driver
8934 * core invokes this routine. If this routine determines it can claim the HBA,
8935 * it does all the initialization that it needs to do to handle the HBA
8936 * properly.
3772a991
JS		 8937 *
8938 * Return code
8939 * 0 - driver can claim the device
8940 * negative value - driver can not claim the device
8941 **/
8942static int __devinit
da0436e9 8943lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
3772a991
JS		 8944{
8945 struct lpfc_hba *phba;
8946 struct lpfc_vport *vport = NULL;
6669f9bb 8947 struct Scsi_Host *shost = NULL;
3772a991
JS		 8948 int error;
8949 uint32_t cfg_mode, intr_mode;
da0436e9 8950 int mcnt;
0558056c
JS		 8951 int adjusted_fcp_eq_count;
8952 int fcp_qidx;
52d52440
JS		 8953 const struct firmware *fw;
8954 uint8_t file_name[16];
3772a991
JS		 8955
8956 /* Allocate memory for HBA structure */
8957 phba = lpfc_hba_alloc(pdev);
8958 if (!phba)
8959 return -ENOMEM;
8960
8961 /* Perform generic PCI device enabling operation */
8962 error = lpfc_enable_pci_dev(phba);
8963 if (error) {
8964 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 8965 "1409 Failed to enable pci device.\n");
3772a991
JS		 8966 goto out_free_phba;
8967 }
8968
da0436e9
JS		 8969 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
8970 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
3772a991
JS		 8971 if (error)
8972 goto out_disable_pci_dev;
8973
da0436e9
JS		 8974 /* Set up SLI-4 specific device PCI memory space */
8975 error = lpfc_sli4_pci_mem_setup(phba);
3772a991
JS		 8976 if (error) {
8977 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 8978 "1410 Failed to set up pci memory space.\n");
3772a991
JS		 8979 goto out_disable_pci_dev;
8980 }
8981
8982 /* Set up phase-1 common device driver resources */
8983 error = lpfc_setup_driver_resource_phase1(phba);
8984 if (error) {
8985 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 8986 "1411 Failed to set up driver resource.\n");
8987 goto out_unset_pci_mem_s4;
3772a991
JS		 8988 }
8989
da0436e9
JS		 8990 /* Set up SLI-4 Specific device driver resources */
8991 error = lpfc_sli4_driver_resource_setup(phba);
3772a991
JS		 8992 if (error) {
8993 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 8994 "1412 Failed to set up driver resource.\n");
8995 goto out_unset_pci_mem_s4;
3772a991
JS		 8996 }
8997
8998 /* Initialize and populate the iocb list per host */
2a9bf3d0
JS		 8999
9000 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9001 "2821 initialize iocb list %d.\n",
9002 phba->cfg_iocb_cnt*1024);
9003 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
9004
3772a991
JS		 9005 if (error) {
9006 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 9007 "1413 Failed to initialize iocb list.\n");
9008 goto out_unset_driver_resource_s4;
3772a991
JS		 9009 }
9010
19ca7609
JS		 9011 INIT_LIST_HEAD(&phba->active_rrq_list);
9012
3772a991
JS		 9013 /* Set up common device driver resources */
9014 error = lpfc_setup_driver_resource_phase2(phba);
9015 if (error) {
9016 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9017 "1414 Failed to set up driver resource.\n");
3772a991
JS		 9018 goto out_free_iocb_list;
9019 }
9020
9021 /* Create SCSI host to the physical port */
9022 error = lpfc_create_shost(phba);
9023 if (error) {
9024 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9025 "1415 Failed to create scsi host.\n");
3772a991
JS		 9026 goto out_unset_driver_resource;
9027 }
9399627f 9028
5b75da2f 9029 /* Configure sysfs attributes */
3772a991
JS		 9030 vport = phba->pport;
9031 error = lpfc_alloc_sysfs_attr(vport);
9032 if (error) {
9399627f 9033 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9034 "1416 Failed to allocate sysfs attr\n");
3772a991 9035 goto out_destroy_shost;
98c9ea5c 9036 }
875fbdfe 9037
6669f9bb 9038 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
3772a991 9039 /* Now, trying to enable interrupt and bring up the device */
5b75da2f
JS		 9040 cfg_mode = phba->cfg_use_msi;
9041 while (true) {
3772a991
JS		 9042 /* Put device to a known state before enabling interrupt */
9043 lpfc_stop_port(phba);
5b75da2f 9044 /* Configure and enable interrupt */
da0436e9 9045 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
5b75da2f
JS		 9046 if (intr_mode == LPFC_INTR_ERROR) {
9047 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9048 "0426 Failed to enable interrupt.\n");
3772a991 9049 error = -ENODEV;
5b75da2f
JS		 9050 goto out_free_sysfs_attr;
9051 }
0558056c 9052 /* Default to single EQ for non-MSI-X */
def9c7a9 9053 if (phba->intr_type != MSIX)
0558056c
JS		 9054 adjusted_fcp_eq_count = 0;
9055 else if (phba->sli4_hba.msix_vec_nr <
9056 phba->cfg_fcp_eq_count + 1)
9057 adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
9058 else
9059 adjusted_fcp_eq_count = phba->cfg_fcp_eq_count;
9060 /* Free unused EQs */
9061 for (fcp_qidx = adjusted_fcp_eq_count;
9062 fcp_qidx < phba->cfg_fcp_eq_count;
9063 fcp_qidx++) {
9064 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
9065 /* do not delete the first fcp_cq */
9066 if (fcp_qidx)
9067 lpfc_sli4_queue_free(
9068 phba->sli4_hba.fcp_cq[fcp_qidx]);
9069 }
9070 phba->cfg_fcp_eq_count = adjusted_fcp_eq_count;
da0436e9
JS		 9071 /* Set up SLI-4 HBA */
9072 if (lpfc_sli4_hba_setup(phba)) {
5b75da2f 9073 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9074 "1421 Failed to set up hba\n");
5b75da2f 9075 error = -ENODEV;
da0436e9 9076 goto out_disable_intr;
5b75da2f
JS		 9077 }
9078
da0436e9
JS		 9079 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
9080 if (intr_mode != 0)
9081 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
9082 LPFC_ACT_INTR_CNT);
9083
9084 /* Check active interrupts received only for MSI/MSI-X */
3772a991 9085 if (intr_mode == 0 ||
da0436e9 9086 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
5b75da2f
JS		 9087 /* Log the current active interrupt mode */
9088 phba->intr_mode = intr_mode;
9089 lpfc_log_intr_mode(phba, intr_mode);
9090 break;
5b75da2f 9091 }
da0436e9
JS		 9092 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9093 "0451 Configure interrupt mode (%d) "
9094 "failed active interrupt test.\n",
9095 intr_mode);
2fcee4bf
JS		 9096 /* Unset the previous SLI-4 HBA setup. */
9097 /*
9098 * TODO: Is this operation compatible with IF TYPE 2
9099 * devices? All port state is deleted and cleared.
9100 */
da0436e9
JS		 9101 lpfc_sli4_unset_hba(phba);
9102 /* Try next level of interrupt mode */
9103 cfg_mode = --intr_mode;
98c9ea5c 9104 }
858c9f6c 9105
3772a991
JS		 9106 /* Perform post initialization setup */
9107 lpfc_post_init_setup(phba);
dea3101e 9108
52d52440
JS		 9109 /* check for firmware upgrade or downgrade */
9110 snprintf(file_name, 16, "%s.grp", phba->ModelName);
9111 error = request_firmware(&fw, file_name, &phba->pcidev->dev);
9112 if (!error) {
9113 lpfc_write_firmware(phba, fw);
9114 release_firmware(fw);
9115 }
9116
1c6834a7
JS		 9117 /* Check if there are static vports to be created. */
9118 lpfc_create_static_vport(phba);
9119
dea3101e 9120 return 0;
9121
da0436e9
JS		 9122out_disable_intr:
9123 lpfc_sli4_disable_intr(phba);
5b75da2f
JS		 9124out_free_sysfs_attr:
9125 lpfc_free_sysfs_attr(vport);
3772a991
JS		 9126out_destroy_shost:
9127 lpfc_destroy_shost(phba);
9128out_unset_driver_resource:
9129 lpfc_unset_driver_resource_phase2(phba);
9130out_free_iocb_list:
9131 lpfc_free_iocb_list(phba);
da0436e9
JS		 9132out_unset_driver_resource_s4:
9133 lpfc_sli4_driver_resource_unset(phba);
9134out_unset_pci_mem_s4:
9135 lpfc_sli4_pci_mem_unset(phba);
3772a991
JS		 9136out_disable_pci_dev:
9137 lpfc_disable_pci_dev(phba);
6669f9bb
JS		 9138 if (shost)
9139 scsi_host_put(shost);
2e0fef85 9140out_free_phba:
3772a991 9141 lpfc_hba_free(phba);
dea3101e 9142 return error;
9143}
9144
e59058c4 9145/**
da0436e9 9146 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
e59058c4
JS		 9147 * @pdev: pointer to PCI device
9148 *
da0436e9
JS		 9149 * This routine is called from the kernel's PCI subsystem to device with
9150 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
3772a991
JS		 9151 * removed from PCI bus, it performs all the necessary cleanup for the HBA
9152 * device to be removed from the PCI subsystem properly.
e59058c4 9153 **/
dea3101e 9154static void __devexit
da0436e9 9155lpfc_pci_remove_one_s4(struct pci_dev *pdev)
dea3101e 9156{
da0436e9 9157 struct Scsi_Host *shost = pci_get_drvdata(pdev);
2e0fef85 9158 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
eada272d 9159 struct lpfc_vport **vports;
da0436e9 9160 struct lpfc_hba *phba = vport->phba;
eada272d 9161 int i;
8a4df120 9162
da0436e9 9163 /* Mark the device unloading flag */
549e55cd 9164 spin_lock_irq(&phba->hbalock);
51ef4c26 9165 vport->load_flag |= FC_UNLOADING;
549e55cd 9166 spin_unlock_irq(&phba->hbalock);
2e0fef85 9167
da0436e9 9168 /* Free the HBA sysfs attributes */
858c9f6c
JS		 9169 lpfc_free_sysfs_attr(vport);
9170
eada272d
JS		 9171 /* Release all the vports against this physical port */
9172 vports = lpfc_create_vport_work_array(phba);
9173 if (vports != NULL)
3772a991 9174 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
eada272d
JS		 9175 fc_vport_terminate(vports[i]->fc_vport);
9176 lpfc_destroy_vport_work_array(phba, vports);
9177
9178 /* Remove FC host and then SCSI host with the physical port */
858c9f6c
JS		 9179 fc_remove_host(shost);
9180 scsi_remove_host(shost);
da0436e9
JS		 9181
9182 /* Perform cleanup on the physical port */
87af33fe
JS		 9183 lpfc_cleanup(vport);
9184
2e0fef85 9185 /*
da0436e9 9186 * Bring down the SLI Layer. This step disables all interrupts,
2e0fef85 9187 * clears the rings, discards all mailbox commands, and resets
da0436e9 9188 * the HBA FCoE function.
2e0fef85 9189 */
da0436e9
JS		 9190 lpfc_debugfs_terminate(vport);
9191 lpfc_sli4_hba_unset(phba);
a257bf90 9192
858c9f6c
JS		 9193 spin_lock_irq(&phba->hbalock);
9194 list_del_init(&vport->listentry);
9195 spin_unlock_irq(&phba->hbalock);
9196
3677a3a7 9197 /* Perform scsi free before driver resource_unset since scsi
da0436e9 9198 * buffers are released to their corresponding pools here.
2e0fef85
JS		 9199 */
9200 lpfc_scsi_free(phba);
da0436e9 9201 lpfc_sli4_driver_resource_unset(phba);
ed957684 9202
da0436e9
JS		 9203 /* Unmap adapter Control and Doorbell registers */
9204 lpfc_sli4_pci_mem_unset(phba);
2e0fef85 9205
da0436e9
JS		 9206 /* Release PCI resources and disable device's PCI function */
9207 scsi_host_put(shost);
9208 lpfc_disable_pci_dev(phba);
2e0fef85 9209
da0436e9 9210 /* Finally, free the driver's device data structure */
3772a991 9211 lpfc_hba_free(phba);
2e0fef85 9212
da0436e9 9213 return;
dea3101e 9214}
9215
3a55b532 9216/**
da0436e9 9217 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
3a55b532
JS		 9218 * @pdev: pointer to PCI device
9219 * @msg: power management message
9220 *
da0436e9
JS		 9221 * This routine is called from the kernel's PCI subsystem to support system
9222 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
9223 * this method, it quiesces the device by stopping the driver's worker
9224 * thread for the device, turning off device's interrupt and DMA, and bring
9225 * the device offline. Note that as the driver implements the minimum PM
9226 * requirements to a power-aware driver's PM support for suspend/resume -- all
9227 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
9228 * method call will be treated as SUSPEND and the driver will fully
9229 * reinitialize its device during resume() method call, the driver will set
9230 * device to PCI_D3hot state in PCI config space instead of setting it
3772a991 9231 * according to the @msg provided by the PM.
3a55b532
JS		 9232 *
9233 * Return code
3772a991
JS		 9234 * 0 - driver suspended the device
9235 * Error otherwise
3a55b532
JS		 9236 **/
9237static int
da0436e9 9238lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
3a55b532
JS		 9239{
9240 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9241 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9242
9243 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
75baf696 9244 "2843 PCI device Power Management suspend.\n");
3a55b532
JS		 9245
9246 /* Bring down the device */
9247 lpfc_offline_prep(phba);
9248 lpfc_offline(phba);
9249 kthread_stop(phba->worker_thread);
9250
9251 /* Disable interrupt from device */
da0436e9 9252 lpfc_sli4_disable_intr(phba);
3a55b532
JS		 9253
9254 /* Save device state to PCI config space */
9255 pci_save_state(pdev);
9256 pci_set_power_state(pdev, PCI_D3hot);
9257
9258 return 0;
9259}
9260
9261/**
da0436e9 9262 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
3a55b532
JS		 9263 * @pdev: pointer to PCI device
9264 *
da0436e9
JS		 9265 * This routine is called from the kernel's PCI subsystem to support system
9266 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
9267 * this method, it restores the device's PCI config space state and fully
9268 * reinitializes the device and brings it online. Note that as the driver
9269 * implements the minimum PM requirements to a power-aware driver's PM for
9270 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9271 * to the suspend() method call will be treated as SUSPEND and the driver
9272 * will fully reinitialize its device during resume() method call, the device
9273 * will be set to PCI_D0 directly in PCI config space before restoring the
9274 * state.
3a55b532
JS		 9275 *
9276 * Return code
3772a991
JS		 9277 * 0 - driver suspended the device
9278 * Error otherwise
3a55b532
JS		 9279 **/
9280static int
da0436e9 9281lpfc_pci_resume_one_s4(struct pci_dev *pdev)
3a55b532
JS		 9282{
9283 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9284 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
5b75da2f 9285 uint32_t intr_mode;
3a55b532
JS		 9286 int error;
9287
9288 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
da0436e9 9289 "0292 PCI device Power Management resume.\n");
3a55b532
JS		 9290
9291 /* Restore device state from PCI config space */
9292 pci_set_power_state(pdev, PCI_D0);
9293 pci_restore_state(pdev);
1dfb5a47
JS		 9294
9295 /*
9296 * As the new kernel behavior of pci_restore_state() API call clears
9297 * device saved_state flag, need to save the restored state again.
9298 */
9299 pci_save_state(pdev);
9300
3a55b532
JS		 9301 if (pdev->is_busmaster)
9302 pci_set_master(pdev);
9303
da0436e9 9304 /* Startup the kernel thread for this host adapter. */
3a55b532
JS		 9305 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9306 "lpfc_worker_%d", phba->brd_no);
9307 if (IS_ERR(phba->worker_thread)) {
9308 error = PTR_ERR(phba->worker_thread);
9309 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9310 "0293 PM resume failed to start worker "
3a55b532
JS		 9311 "thread: error=x%x.\n", error);
9312 return error;
9313 }
9314
5b75da2f 9315 /* Configure and enable interrupt */
da0436e9 9316 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
5b75da2f 9317 if (intr_mode == LPFC_INTR_ERROR) {
3a55b532 9318 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9319 "0294 PM resume Failed to enable interrupt\n");
5b75da2f
JS		 9320 return -EIO;
9321 } else
9322 phba->intr_mode = intr_mode;
3a55b532
JS		 9323
9324 /* Restart HBA and bring it online */
9325 lpfc_sli_brdrestart(phba);
9326 lpfc_online(phba);
9327
5b75da2f
JS		 9328 /* Log the current active interrupt mode */
9329 lpfc_log_intr_mode(phba, phba->intr_mode);
9330
3a55b532
JS		 9331 return 0;
9332}
9333
75baf696
JS		 9334/**
9335 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
9336 * @phba: pointer to lpfc hba data structure.
9337 *
9338 * This routine is called to prepare the SLI4 device for PCI slot recover. It
9339 * aborts all the outstanding SCSI I/Os to the pci device.
9340 **/
9341static void
9342lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
9343{
9344 struct lpfc_sli *psli = &phba->sli;
9345 struct lpfc_sli_ring *pring;
9346
9347 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9348 "2828 PCI channel I/O abort preparing for recovery\n");
9349 /*
9350 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9351 * and let the SCSI mid-layer to retry them to recover.
9352 */
9353 pring = &psli->ring[psli->fcp_ring];
9354 lpfc_sli_abort_iocb_ring(phba, pring);
9355}
9356
9357/**
9358 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
9359 * @phba: pointer to lpfc hba data structure.
9360 *
9361 * This routine is called to prepare the SLI4 device for PCI slot reset. It
9362 * disables the device interrupt and pci device, and aborts the internal FCP
9363 * pending I/Os.
9364 **/
9365static void
9366lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
9367{
9368 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9369 "2826 PCI channel disable preparing for reset\n");
9370
9371 /* Block any management I/Os to the device */
9372 lpfc_block_mgmt_io(phba);
9373
9374 /* Block all SCSI devices' I/Os on the host */
9375 lpfc_scsi_dev_block(phba);
9376
9377 /* stop all timers */
9378 lpfc_stop_hba_timers(phba);
9379
9380 /* Disable interrupt and pci device */
9381 lpfc_sli4_disable_intr(phba);
9382 pci_disable_device(phba->pcidev);
9383
9384 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9385 lpfc_sli_flush_fcp_rings(phba);
9386}
9387
9388/**
9389 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
9390 * @phba: pointer to lpfc hba data structure.
9391 *
9392 * This routine is called to prepare the SLI4 device for PCI slot permanently
9393 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9394 * pending I/Os.
9395 **/
9396static void
9397lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9398{
9399 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9400 "2827 PCI channel permanent disable for failure\n");
9401
9402 /* Block all SCSI devices' I/Os on the host */
9403 lpfc_scsi_dev_block(phba);
9404
9405 /* stop all timers */
9406 lpfc_stop_hba_timers(phba);
9407
9408 /* Clean up all driver's outstanding SCSI I/Os */
9409 lpfc_sli_flush_fcp_rings(phba);
9410}
9411
8d63f375 9412/**
da0436e9 9413 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
e59058c4
JS		 9414 * @pdev: pointer to PCI device.
9415 * @state: the current PCI connection state.
8d63f375 9416 *
da0436e9
JS		 9417 * This routine is called from the PCI subsystem for error handling to device
9418 * with SLI-4 interface spec. This function is called by the PCI subsystem
9419 * after a PCI bus error affecting this device has been detected. When this
9420 * function is invoked, it will need to stop all the I/Os and interrupt(s)
9421 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
9422 * for the PCI subsystem to perform proper recovery as desired.
e59058c4
JS		 9423 *
9424 * Return codes
3772a991
JS		 9425 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9426 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
e59058c4 9427 **/
3772a991 9428static pci_ers_result_t
da0436e9 9429lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
8d63f375 9430{
75baf696
JS		 9431 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9432 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9433
9434 switch (state) {
9435 case pci_channel_io_normal:
9436 /* Non-fatal error, prepare for recovery */
9437 lpfc_sli4_prep_dev_for_recover(phba);
9438 return PCI_ERS_RESULT_CAN_RECOVER;
9439 case pci_channel_io_frozen:
9440 /* Fatal error, prepare for slot reset */
9441 lpfc_sli4_prep_dev_for_reset(phba);
9442 return PCI_ERS_RESULT_NEED_RESET;
9443 case pci_channel_io_perm_failure:
9444 /* Permanent failure, prepare for device down */
9445 lpfc_sli4_prep_dev_for_perm_failure(phba);
9446 return PCI_ERS_RESULT_DISCONNECT;
9447 default:
9448 /* Unknown state, prepare and request slot reset */
9449 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9450 "2825 Unknown PCI error state: x%x\n", state);
9451 lpfc_sli4_prep_dev_for_reset(phba);
9452 return PCI_ERS_RESULT_NEED_RESET;
9453 }
8d63f375
LV		 9454}
9455
9456/**
da0436e9 9457 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
e59058c4
JS		 9458 * @pdev: pointer to PCI device.
9459 *
da0436e9
JS		 9460 * This routine is called from the PCI subsystem for error handling to device
9461 * with SLI-4 interface spec. It is called after PCI bus has been reset to
9462 * restart the PCI card from scratch, as if from a cold-boot. During the
9463 * PCI subsystem error recovery, after the driver returns
3772a991 9464 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
da0436e9
JS		 9465 * recovery and then call this routine before calling the .resume method to
9466 * recover the device. This function will initialize the HBA device, enable
9467 * the interrupt, but it will just put the HBA to offline state without
9468 * passing any I/O traffic.
8d63f375 9469 *
e59058c4 9470 * Return codes
3772a991
JS		 9471 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9472 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8d63f375 9473 */
3772a991 9474static pci_ers_result_t
da0436e9 9475lpfc_io_slot_reset_s4(struct pci_dev *pdev)
8d63f375 9476{
75baf696
JS		 9477 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9478 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9479 struct lpfc_sli *psli = &phba->sli;
9480 uint32_t intr_mode;
9481
9482 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9483 if (pci_enable_device_mem(pdev)) {
9484 printk(KERN_ERR "lpfc: Cannot re-enable "
9485 "PCI device after reset.\n");
9486 return PCI_ERS_RESULT_DISCONNECT;
9487 }
9488
9489 pci_restore_state(pdev);
9490 if (pdev->is_busmaster)
9491 pci_set_master(pdev);
9492
9493 spin_lock_irq(&phba->hbalock);
9494 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9495 spin_unlock_irq(&phba->hbalock);
9496
9497 /* Configure and enable interrupt */
9498 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9499 if (intr_mode == LPFC_INTR_ERROR) {
9500 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9501 "2824 Cannot re-enable interrupt after "
9502 "slot reset.\n");
9503 return PCI_ERS_RESULT_DISCONNECT;
9504 } else
9505 phba->intr_mode = intr_mode;
9506
9507 /* Log the current active interrupt mode */
9508 lpfc_log_intr_mode(phba, phba->intr_mode);
9509
8d63f375
LV		 9510 return PCI_ERS_RESULT_RECOVERED;
9511}
9512
9513/**
da0436e9 9514 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
e59058c4 9515 * @pdev: pointer to PCI device
8d63f375 9516 *
3772a991 9517 * This routine is called from the PCI subsystem for error handling to device
da0436e9 9518 * with SLI-4 interface spec. It is called when kernel error recovery tells
3772a991
JS		 9519 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9520 * error recovery. After this call, traffic can start to flow from this device
9521 * again.
da0436e9 9522 **/
3772a991 9523static void
da0436e9 9524lpfc_io_resume_s4(struct pci_dev *pdev)
8d63f375 9525{
75baf696
JS		 9526 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9527 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9528
9529 /*
9530 * In case of slot reset, as function reset is performed through
9531 * mailbox command which needs DMA to be enabled, this operation
9532 * has to be moved to the io resume phase. Taking device offline
9533 * will perform the necessary cleanup.
9534 */
9535 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
9536 /* Perform device reset */
9537 lpfc_offline_prep(phba);
9538 lpfc_offline(phba);
9539 lpfc_sli_brdrestart(phba);
9540 /* Bring the device back online */
9541 lpfc_online(phba);
9542 }
9543
9544 /* Clean up Advanced Error Reporting (AER) if needed */
9545 if (phba->hba_flag & HBA_AER_ENABLED)
9546 pci_cleanup_aer_uncorrect_error_status(pdev);
8d63f375
LV		 9547}
9548
3772a991
JS		 9549/**
9550 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
9551 * @pdev: pointer to PCI device
9552 * @pid: pointer to PCI device identifier
9553 *
9554 * This routine is to be registered to the kernel's PCI subsystem. When an
9555 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
9556 * at PCI device-specific information of the device and driver to see if the
9557 * driver state that it can support this kind of device. If the match is
9558 * successful, the driver core invokes this routine. This routine dispatches
9559 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
9560 * do all the initialization that it needs to do to handle the HBA device
9561 * properly.
9562 *
9563 * Return code
9564 * 0 - driver can claim the device
9565 * negative value - driver can not claim the device
9566 **/
9567static int __devinit
9568lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
9569{
9570 int rc;
8fa38513 9571 struct lpfc_sli_intf intf;
3772a991 9572
28baac74 9573 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
3772a991
JS		 9574 return -ENODEV;
9575
8fa38513 9576 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
28baac74 9577 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
da0436e9 9578 rc = lpfc_pci_probe_one_s4(pdev, pid);
8fa38513 9579 else
3772a991 9580 rc = lpfc_pci_probe_one_s3(pdev, pid);
8fa38513 9581
3772a991
JS		 9582 return rc;
9583}
9584
9585/**
9586 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
9587 * @pdev: pointer to PCI device
9588 *
9589 * This routine is to be registered to the kernel's PCI subsystem. When an
9590 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
9591 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
9592 * remove routine, which will perform all the necessary cleanup for the
9593 * device to be removed from the PCI subsystem properly.
9594 **/
9595static void __devexit
9596lpfc_pci_remove_one(struct pci_dev *pdev)
9597{
9598 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9599 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9600
9601 switch (phba->pci_dev_grp) {
9602 case LPFC_PCI_DEV_LP:
9603 lpfc_pci_remove_one_s3(pdev);
9604 break;
da0436e9
JS		 9605 case LPFC_PCI_DEV_OC:
9606 lpfc_pci_remove_one_s4(pdev);
9607 break;
3772a991
JS		 9608 default:
9609 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9610 "1424 Invalid PCI device group: 0x%x\n",
9611 phba->pci_dev_grp);
9612 break;
9613 }
9614 return;
9615}
9616
9617/**
9618 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
9619 * @pdev: pointer to PCI device
9620 * @msg: power management message
9621 *
9622 * This routine is to be registered to the kernel's PCI subsystem to support
9623 * system Power Management (PM). When PM invokes this method, it dispatches
9624 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
9625 * suspend the device.
9626 *
9627 * Return code
9628 * 0 - driver suspended the device
9629 * Error otherwise
9630 **/
9631static int
9632lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
9633{
9634 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9635 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9636 int rc = -ENODEV;
9637
9638 switch (phba->pci_dev_grp) {
9639 case LPFC_PCI_DEV_LP:
9640 rc = lpfc_pci_suspend_one_s3(pdev, msg);
9641 break;
da0436e9
JS		 9642 case LPFC_PCI_DEV_OC:
9643 rc = lpfc_pci_suspend_one_s4(pdev, msg);
9644 break;
3772a991
JS		 9645 default:
9646 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9647 "1425 Invalid PCI device group: 0x%x\n",
9648 phba->pci_dev_grp);
9649 break;
9650 }
9651 return rc;
9652}
9653
9654/**
9655 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
9656 * @pdev: pointer to PCI device
9657 *
9658 * This routine is to be registered to the kernel's PCI subsystem to support
9659 * system Power Management (PM). When PM invokes this method, it dispatches
9660 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
9661 * resume the device.
9662 *
9663 * Return code
9664 * 0 - driver suspended the device
9665 * Error otherwise
9666 **/
9667static int
9668lpfc_pci_resume_one(struct pci_dev *pdev)
9669{
9670 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9671 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9672 int rc = -ENODEV;
9673
9674 switch (phba->pci_dev_grp) {
9675 case LPFC_PCI_DEV_LP:
9676 rc = lpfc_pci_resume_one_s3(pdev);
9677 break;
da0436e9
JS		 9678 case LPFC_PCI_DEV_OC:
9679 rc = lpfc_pci_resume_one_s4(pdev);
9680 break;
3772a991
JS		 9681 default:
9682 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9683 "1426 Invalid PCI device group: 0x%x\n",
9684 phba->pci_dev_grp);
9685 break;
9686 }
9687 return rc;
9688}
9689
9690/**
9691 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
9692 * @pdev: pointer to PCI device.
9693 * @state: the current PCI connection state.
9694 *
9695 * This routine is registered to the PCI subsystem for error handling. This
9696 * function is called by the PCI subsystem after a PCI bus error affecting
9697 * this device has been detected. When this routine is invoked, it dispatches
9698 * the action to the proper SLI-3 or SLI-4 device error detected handling
9699 * routine, which will perform the proper error detected operation.
9700 *
9701 * Return codes
9702 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9703 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9704 **/
9705static pci_ers_result_t
9706lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9707{
9708 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9709 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9710 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9711
9712 switch (phba->pci_dev_grp) {
9713 case LPFC_PCI_DEV_LP:
9714 rc = lpfc_io_error_detected_s3(pdev, state);
9715 break;
da0436e9
JS		 9716 case LPFC_PCI_DEV_OC:
9717 rc = lpfc_io_error_detected_s4(pdev, state);
9718 break;
3772a991
JS		 9719 default:
9720 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9721 "1427 Invalid PCI device group: 0x%x\n",
9722 phba->pci_dev_grp);
9723 break;
9724 }
9725 return rc;
9726}
9727
9728/**
9729 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
9730 * @pdev: pointer to PCI device.
9731 *
9732 * This routine is registered to the PCI subsystem for error handling. This
9733 * function is called after PCI bus has been reset to restart the PCI card
9734 * from scratch, as if from a cold-boot. When this routine is invoked, it
9735 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
9736 * routine, which will perform the proper device reset.
9737 *
9738 * Return codes
9739 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9740 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9741 **/
9742static pci_ers_result_t
9743lpfc_io_slot_reset(struct pci_dev *pdev)
9744{
9745 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9746 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9747 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9748
9749 switch (phba->pci_dev_grp) {
9750 case LPFC_PCI_DEV_LP:
9751 rc = lpfc_io_slot_reset_s3(pdev);
9752 break;
da0436e9
JS		 9753 case LPFC_PCI_DEV_OC:
9754 rc = lpfc_io_slot_reset_s4(pdev);
9755 break;
3772a991
JS		 9756 default:
9757 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9758 "1428 Invalid PCI device group: 0x%x\n",
9759 phba->pci_dev_grp);
9760 break;
9761 }
9762 return rc;
9763}
9764
9765/**
9766 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
9767 * @pdev: pointer to PCI device
9768 *
9769 * This routine is registered to the PCI subsystem for error handling. It
9770 * is called when kernel error recovery tells the lpfc driver that it is
9771 * OK to resume normal PCI operation after PCI bus error recovery. When
9772 * this routine is invoked, it dispatches the action to the proper SLI-3
9773 * or SLI-4 device io_resume routine, which will resume the device operation.
9774 **/
9775static void
9776lpfc_io_resume(struct pci_dev *pdev)
9777{
9778 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9779 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9780
9781 switch (phba->pci_dev_grp) {
9782 case LPFC_PCI_DEV_LP:
9783 lpfc_io_resume_s3(pdev);
9784 break;
da0436e9
JS		 9785 case LPFC_PCI_DEV_OC:
9786 lpfc_io_resume_s4(pdev);
9787 break;
3772a991
JS		 9788 default:
9789 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9790 "1429 Invalid PCI device group: 0x%x\n",
9791 phba->pci_dev_grp);
9792 break;
9793 }
9794 return;
9795}
9796
dea3101e 9797static struct pci_device_id lpfc_id_table[] = {
9798 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
9799 PCI_ANY_ID, PCI_ANY_ID, },
06325e74
JSEC		 9800 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
9801 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9802 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
9803 PCI_ANY_ID, PCI_ANY_ID, },
9804 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
9805 PCI_ANY_ID, PCI_ANY_ID, },
9806 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
9807 PCI_ANY_ID, PCI_ANY_ID, },
9808 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
9809 PCI_ANY_ID, PCI_ANY_ID, },
9810 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
9811 PCI_ANY_ID, PCI_ANY_ID, },
9812 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
9813 PCI_ANY_ID, PCI_ANY_ID, },
9814 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
9815 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9816 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
9817 PCI_ANY_ID, PCI_ANY_ID, },
9818 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
9819 PCI_ANY_ID, PCI_ANY_ID, },
9820 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
9821 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9822 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
9823 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9824 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
9825 PCI_ANY_ID, PCI_ANY_ID, },
9826 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
9827 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9828 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
9829 PCI_ANY_ID, PCI_ANY_ID, },
9830 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
9831 PCI_ANY_ID, PCI_ANY_ID, },
9832 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
9833 PCI_ANY_ID, PCI_ANY_ID, },
84774a4d
JS		 9834 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
9835 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9836 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
9837 PCI_ANY_ID, PCI_ANY_ID, },
9838 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
9839 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9840 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
9841 PCI_ANY_ID, PCI_ANY_ID, },
9842 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
9843 PCI_ANY_ID, PCI_ANY_ID, },
9844 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
9845 PCI_ANY_ID, PCI_ANY_ID, },
9846 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
9847 PCI_ANY_ID, PCI_ANY_ID, },
9848 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
9849 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9850 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
9851 PCI_ANY_ID, PCI_ANY_ID, },
9852 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
9853 PCI_ANY_ID, PCI_ANY_ID, },
b87eab38
JS		 9854 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
9855 PCI_ANY_ID, PCI_ANY_ID, },
9856 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
9857 PCI_ANY_ID, PCI_ANY_ID, },
9858 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
9859 PCI_ANY_ID, PCI_ANY_ID, },
9860 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
9861 PCI_ANY_ID, PCI_ANY_ID, },
9862 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
9863 PCI_ANY_ID, PCI_ANY_ID, },
9864 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
9865 PCI_ANY_ID, PCI_ANY_ID, },
84774a4d
JS		 9866 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
9867 PCI_ANY_ID, PCI_ANY_ID, },
9868 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
9869 PCI_ANY_ID, PCI_ANY_ID, },
9870 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
9871 PCI_ANY_ID, PCI_ANY_ID, },
3772a991
JS		 9872 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
9873 PCI_ANY_ID, PCI_ANY_ID, },
a747c9ce
JS		 9874 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
9875 PCI_ANY_ID, PCI_ANY_ID, },
9876 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
6669f9bb 9877 PCI_ANY_ID, PCI_ANY_ID, },
98fc5dd9
JS		 9878 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
9879 PCI_ANY_ID, PCI_ANY_ID, },
085c647c
JS		 9880 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
9881 PCI_ANY_ID, PCI_ANY_ID, },
9882 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
9883 PCI_ANY_ID, PCI_ANY_ID, },
c0c11512
JS		 9884 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
9885 PCI_ANY_ID, PCI_ANY_ID, },
9886 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
9887 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9888 { 0 }
9889};
9890
9891MODULE_DEVICE_TABLE(pci, lpfc_id_table);
9892
8d63f375
LV		 9893static struct pci_error_handlers lpfc_err_handler = {
9894 .error_detected = lpfc_io_error_detected,
9895 .slot_reset = lpfc_io_slot_reset,
9896 .resume = lpfc_io_resume,
9897};
9898
dea3101e 9899static struct pci_driver lpfc_driver = {
9900 .name = LPFC_DRIVER_NAME,
9901 .id_table = lpfc_id_table,
9902 .probe = lpfc_pci_probe_one,
9903 .remove = __devexit_p(lpfc_pci_remove_one),
3a55b532 9904 .suspend = lpfc_pci_suspend_one,
3772a991 9905 .resume = lpfc_pci_resume_one,
2e0fef85 9906 .err_handler = &lpfc_err_handler,
dea3101e 9907};
9908
e59058c4 9909/**
3621a710 9910 * lpfc_init - lpfc module initialization routine
e59058c4
JS		 9911 *
9912 * This routine is to be invoked when the lpfc module is loaded into the
9913 * kernel. The special kernel macro module_init() is used to indicate the
9914 * role of this routine to the kernel as lpfc module entry point.
9915 *
9916 * Return codes
9917 * 0 - successful
9918 * -ENOMEM - FC attach transport failed
9919 * all others - failed
9920 */
dea3101e 9921static int __init
9922lpfc_init(void)
9923{
9924 int error = 0;
9925
9926 printk(LPFC_MODULE_DESC "\n");
c44ce173 9927 printk(LPFC_COPYRIGHT "\n");
dea3101e 9928
7ee5d43e
JS		 9929 if (lpfc_enable_npiv) {
9930 lpfc_transport_functions.vport_create = lpfc_vport_create;
9931 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
9932 }
dea3101e 9933 lpfc_transport_template =
9934 fc_attach_transport(&lpfc_transport_functions);
7ee5d43e 9935 if (lpfc_transport_template == NULL)
dea3101e 9936 return -ENOMEM;
7ee5d43e 9937 if (lpfc_enable_npiv) {
7ee5d43e 9938 lpfc_vport_transport_template =
98c9ea5c
JS		 9939 fc_attach_transport(&lpfc_vport_transport_functions);
9940 if (lpfc_vport_transport_template == NULL) {
9941 fc_release_transport(lpfc_transport_template);
7ee5d43e 9942 return -ENOMEM;
98c9ea5c 9943 }
7ee5d43e 9944 }
dea3101e 9945 error = pci_register_driver(&lpfc_driver);
92d7f7b0 9946 if (error) {
dea3101e 9947 fc_release_transport(lpfc_transport_template);
d7c255b2
JS		 9948 if (lpfc_enable_npiv)
9949 fc_release_transport(lpfc_vport_transport_template);
92d7f7b0 9950 }
dea3101e 9951
9952 return error;
9953}
9954
e59058c4 9955/**
3621a710 9956 * lpfc_exit - lpfc module removal routine
e59058c4
JS		 9957 *
9958 * This routine is invoked when the lpfc module is removed from the kernel.
9959 * The special kernel macro module_exit() is used to indicate the role of
9960 * this routine to the kernel as lpfc module exit point.
9961 */
dea3101e 9962static void __exit
9963lpfc_exit(void)
9964{
9965 pci_unregister_driver(&lpfc_driver);
9966 fc_release_transport(lpfc_transport_template);
7ee5d43e
JS		 9967 if (lpfc_enable_npiv)
9968 fc_release_transport(lpfc_vport_transport_template);
81301a9b 9969 if (_dump_buf_data) {
6a9c52cf
JS		 9970 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
9971 "_dump_buf_data at 0x%p\n",
81301a9b
JS		 9972 (1L << _dump_buf_data_order), _dump_buf_data);
9973 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
9974 }
9975
9976 if (_dump_buf_dif) {
6a9c52cf
JS		 9977 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
9978 "_dump_buf_dif at 0x%p\n",
81301a9b
JS		 9979 (1L << _dump_buf_dif_order), _dump_buf_dif);
9980 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
9981 }
dea3101e 9982}
9983
9984module_init(lpfc_init);
9985module_exit(lpfc_exit);
9986MODULE_LICENSE("GPL");
9987MODULE_DESCRIPTION(LPFC_MODULE_DESC);
9988MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
9989MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
Linux kernel - Deliverables
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