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[SCSI] lpfc 8.3.33: Add Interrupts per second stats via debugfs
[deliverable/linux.git] / drivers / scsi / lpfc / lpfc_init.c
CommitLineData
dea3101e 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
c44ce173 3 * Fibre Channel Host Bus Adapters. *
d4379acd 4 * Copyright (C) 2004-2012 Emulex. All rights reserved. *
c44ce173 5 * EMULEX and SLI are trademarks of Emulex. *
dea3101e 6 * www.emulex.com *
c44ce173 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
dea3101e 8 * *
9 * This program is free software; you can redistribute it and/or *
c44ce173
JSEC		 10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
dea3101e 20 *******************************************************************/
21
dea3101e 22#include <linux/blkdev.h>
23#include <linux/delay.h>
24#include <linux/dma-mapping.h>
25#include <linux/idr.h>
26#include <linux/interrupt.h>
acf3368f 27#include <linux/module.h>
dea3101e 28#include <linux/kthread.h>
29#include <linux/pci.h>
30#include <linux/spinlock.h>
92d7f7b0 31#include <linux/ctype.h>
0d878419 32#include <linux/aer.h>
5a0e3ad6 33#include <linux/slab.h>
52d52440 34#include <linux/firmware.h>
3ef6d24c 35#include <linux/miscdevice.h>
dea3101e 36
91886523 37#include <scsi/scsi.h>
dea3101e 38#include <scsi/scsi_device.h>
39#include <scsi/scsi_host.h>
40#include <scsi/scsi_transport_fc.h>
41
da0436e9 42#include "lpfc_hw4.h"
dea3101e 43#include "lpfc_hw.h"
44#include "lpfc_sli.h"
da0436e9 45#include "lpfc_sli4.h"
ea2151b4 46#include "lpfc_nl.h"
dea3101e 47#include "lpfc_disc.h"
48#include "lpfc_scsi.h"
49#include "lpfc.h"
50#include "lpfc_logmsg.h"
51#include "lpfc_crtn.h"
92d7f7b0 52#include "lpfc_vport.h"
dea3101e 53#include "lpfc_version.h"
54
81301a9b
JS		 55char *_dump_buf_data;
56unsigned long _dump_buf_data_order;
57char *_dump_buf_dif;
58unsigned long _dump_buf_dif_order;
59spinlock_t _dump_buf_lock;
60
dea3101e 61static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
62static int lpfc_post_rcv_buf(struct lpfc_hba *);
5350d872 63static int lpfc_sli4_queue_verify(struct lpfc_hba *);
da0436e9
JS		 64static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
65static int lpfc_setup_endian_order(struct lpfc_hba *);
da0436e9 66static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
8a9d2e80
JS		 67static void lpfc_free_els_sgl_list(struct lpfc_hba *);
68static void lpfc_init_sgl_list(struct lpfc_hba *);
da0436e9
JS		 69static int lpfc_init_active_sgl_array(struct lpfc_hba *);
70static void lpfc_free_active_sgl(struct lpfc_hba *);
71static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
72static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
73static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
74static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
75static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
618a5230
JS		 76static void lpfc_sli4_disable_intr(struct lpfc_hba *);
77static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
dea3101e 78
79static struct scsi_transport_template *lpfc_transport_template = NULL;
92d7f7b0 80static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
dea3101e 81static DEFINE_IDR(lpfc_hba_index);
82
e59058c4 83/**
3621a710 84 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
e59058c4
JS		 85 * @phba: pointer to lpfc hba data structure.
86 *
87 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
88 * mailbox command. It retrieves the revision information from the HBA and
89 * collects the Vital Product Data (VPD) about the HBA for preparing the
90 * configuration of the HBA.
91 *
92 * Return codes:
93 * 0 - success.
94 * -ERESTART - requests the SLI layer to reset the HBA and try again.
95 * Any other value - indicates an error.
96 **/
dea3101e 97int
2e0fef85 98lpfc_config_port_prep(struct lpfc_hba *phba)
dea3101e 99{
100 lpfc_vpd_t *vp = &phba->vpd;
101 int i = 0, rc;
102 LPFC_MBOXQ_t *pmb;
103 MAILBOX_t *mb;
104 char *lpfc_vpd_data = NULL;
105 uint16_t offset = 0;
106 static char licensed[56] =
107 "key unlock for use with gnu public licensed code only\0";
65a29c16 108 static int init_key = 1;
dea3101e 109
110 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
111 if (!pmb) {
2e0fef85 112 phba->link_state = LPFC_HBA_ERROR;
dea3101e 113 return -ENOMEM;
114 }
115
04c68496 116 mb = &pmb->u.mb;
2e0fef85 117 phba->link_state = LPFC_INIT_MBX_CMDS;
dea3101e 118
119 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
65a29c16
JS		 120 if (init_key) {
121 uint32_t *ptext = (uint32_t *) licensed;
dea3101e 122
65a29c16
JS		 123 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
124 *ptext = cpu_to_be32(*ptext);
125 init_key = 0;
126 }
dea3101e 127
128 lpfc_read_nv(phba, pmb);
129 memset((char*)mb->un.varRDnvp.rsvd3, 0,
130 sizeof (mb->un.varRDnvp.rsvd3));
131 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
132 sizeof (licensed));
133
134 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
135
136 if (rc != MBX_SUCCESS) {
ed957684 137 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
e8b62011 138 "0324 Config Port initialization "
dea3101e 139 "error, mbxCmd x%x READ_NVPARM, "
140 "mbxStatus x%x\n",
dea3101e 141 mb->mbxCommand, mb->mbxStatus);
142 mempool_free(pmb, phba->mbox_mem_pool);
143 return -ERESTART;
144 }
145 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
2e0fef85
JS		 146 sizeof(phba->wwnn));
147 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
148 sizeof(phba->wwpn));
dea3101e 149 }
150
92d7f7b0
JS		 151 phba->sli3_options = 0x0;
152
dea3101e 153 /* Setup and issue mailbox READ REV command */
154 lpfc_read_rev(phba, pmb);
155 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
156 if (rc != MBX_SUCCESS) {
ed957684 157 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 158 "0439 Adapter failed to init, mbxCmd x%x "
dea3101e 159 "READ_REV, mbxStatus x%x\n",
dea3101e 160 mb->mbxCommand, mb->mbxStatus);
161 mempool_free( pmb, phba->mbox_mem_pool);
162 return -ERESTART;
163 }
164
92d7f7b0 165
1de933f3
JSEC		 166 /*
167 * The value of rr must be 1 since the driver set the cv field to 1.
168 * This setting requires the FW to set all revision fields.
dea3101e 169 */
1de933f3 170 if (mb->un.varRdRev.rr == 0) {
dea3101e 171 vp->rev.rBit = 0;
1de933f3 172 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011
JS		 173 "0440 Adapter failed to init, READ_REV has "
174 "missing revision information.\n");
dea3101e 175 mempool_free(pmb, phba->mbox_mem_pool);
176 return -ERESTART;
dea3101e 177 }
178
495a714c
JS		 179 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
180 mempool_free(pmb, phba->mbox_mem_pool);
ed957684 181 return -EINVAL;
495a714c 182 }
ed957684 183
dea3101e 184 /* Save information as VPD data */
1de933f3 185 vp->rev.rBit = 1;
92d7f7b0 186 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
1de933f3
JSEC		 187 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
188 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
189 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
190 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
dea3101e 191 vp->rev.biuRev = mb->un.varRdRev.biuRev;
192 vp->rev.smRev = mb->un.varRdRev.smRev;
193 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
194 vp->rev.endecRev = mb->un.varRdRev.endecRev;
195 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
196 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
197 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
198 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
199 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
200 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
201
92d7f7b0
JS		 202 /* If the sli feature level is less then 9, we must
203 * tear down all RPIs and VPIs on link down if NPIV
204 * is enabled.
205 */
206 if (vp->rev.feaLevelHigh < 9)
207 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
208
dea3101e 209 if (lpfc_is_LC_HBA(phba->pcidev->device))
210 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
211 sizeof (phba->RandomData));
212
dea3101e 213 /* Get adapter VPD information */
dea3101e 214 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
215 if (!lpfc_vpd_data)
d7c255b2 216 goto out_free_mbox;
dea3101e 217 do {
a0c87cbd 218 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
dea3101e 219 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
220
221 if (rc != MBX_SUCCESS) {
222 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011 223 "0441 VPD not present on adapter, "
dea3101e 224 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
dea3101e 225 mb->mbxCommand, mb->mbxStatus);
74b72a59 226 mb->un.varDmp.word_cnt = 0;
dea3101e 227 }
04c68496
JS		 228 /* dump mem may return a zero when finished or we got a
229 * mailbox error, either way we are done.
230 */
231 if (mb->un.varDmp.word_cnt == 0)
232 break;
74b72a59
JW		 233 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
234 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
d7c255b2
JS		 235 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
236 lpfc_vpd_data + offset,
92d7f7b0 237 mb->un.varDmp.word_cnt);
dea3101e 238 offset += mb->un.varDmp.word_cnt;
74b72a59
JW		 239 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
240 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
dea3101e 241
242 kfree(lpfc_vpd_data);
dea3101e 243out_free_mbox:
244 mempool_free(pmb, phba->mbox_mem_pool);
245 return 0;
246}
247
e59058c4 248/**
3621a710 249 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
e59058c4
JS		 250 * @phba: pointer to lpfc hba data structure.
251 * @pmboxq: pointer to the driver internal queue element for mailbox command.
252 *
253 * This is the completion handler for driver's configuring asynchronous event
254 * mailbox command to the device. If the mailbox command returns successfully,
255 * it will set internal async event support flag to 1; otherwise, it will
256 * set internal async event support flag to 0.
257 **/
57127f15
JS		 258static void
259lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
260{
04c68496 261 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
57127f15
JS		 262 phba->temp_sensor_support = 1;
263 else
264 phba->temp_sensor_support = 0;
265 mempool_free(pmboxq, phba->mbox_mem_pool);
266 return;
267}
268
97207482 269/**
3621a710 270 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
97207482
JS		 271 * @phba: pointer to lpfc hba data structure.
272 * @pmboxq: pointer to the driver internal queue element for mailbox command.
273 *
274 * This is the completion handler for dump mailbox command for getting
275 * wake up parameters. When this command complete, the response contain
276 * Option rom version of the HBA. This function translate the version number
277 * into a human readable string and store it in OptionROMVersion.
278 **/
279static void
280lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
281{
282 struct prog_id *prg;
283 uint32_t prog_id_word;
284 char dist = ' ';
285 /* character array used for decoding dist type. */
286 char dist_char[] = "nabx";
287
04c68496 288 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
9f1e1b50 289 mempool_free(pmboxq, phba->mbox_mem_pool);
97207482 290 return;
9f1e1b50 291 }
97207482
JS		 292
293 prg = (struct prog_id *) &prog_id_word;
294
295 /* word 7 contain option rom version */
04c68496 296 prog_id_word = pmboxq->u.mb.un.varWords[7];
97207482
JS		 297
298 /* Decode the Option rom version word to a readable string */
299 if (prg->dist < 4)
300 dist = dist_char[prg->dist];
301
302 if ((prg->dist == 3) && (prg->num == 0))
303 sprintf(phba->OptionROMVersion, "%d.%d%d",
304 prg->ver, prg->rev, prg->lev);
305 else
306 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
307 prg->ver, prg->rev, prg->lev,
308 dist, prg->num);
9f1e1b50 309 mempool_free(pmboxq, phba->mbox_mem_pool);
97207482
JS		 310 return;
311}
312
0558056c
JS		 313/**
314 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
315 * cfg_soft_wwnn, cfg_soft_wwpn
316 * @vport: pointer to lpfc vport data structure.
317 *
318 *
319 * Return codes
320 * None.
321 **/
322void
323lpfc_update_vport_wwn(struct lpfc_vport *vport)
324{
325 /* If the soft name exists then update it using the service params */
326 if (vport->phba->cfg_soft_wwnn)
327 u64_to_wwn(vport->phba->cfg_soft_wwnn,
328 vport->fc_sparam.nodeName.u.wwn);
329 if (vport->phba->cfg_soft_wwpn)
330 u64_to_wwn(vport->phba->cfg_soft_wwpn,
331 vport->fc_sparam.portName.u.wwn);
332
333 /*
334 * If the name is empty or there exists a soft name
335 * then copy the service params name, otherwise use the fc name
336 */
337 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
338 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
339 sizeof(struct lpfc_name));
340 else
341 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
342 sizeof(struct lpfc_name));
343
344 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
345 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
346 sizeof(struct lpfc_name));
347 else
348 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
349 sizeof(struct lpfc_name));
350}
351
e59058c4 352/**
3621a710 353 * lpfc_config_port_post - Perform lpfc initialization after config port
e59058c4
JS		 354 * @phba: pointer to lpfc hba data structure.
355 *
356 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
357 * command call. It performs all internal resource and state setups on the
358 * port: post IOCB buffers, enable appropriate host interrupt attentions,
359 * ELS ring timers, etc.
360 *
361 * Return codes
362 * 0 - success.
363 * Any other value - error.
364 **/
dea3101e 365int
2e0fef85 366lpfc_config_port_post(struct lpfc_hba *phba)
dea3101e 367{
2e0fef85 368 struct lpfc_vport *vport = phba->pport;
a257bf90 369 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 370 LPFC_MBOXQ_t *pmb;
371 MAILBOX_t *mb;
372 struct lpfc_dmabuf *mp;
373 struct lpfc_sli *psli = &phba->sli;
374 uint32_t status, timeout;
2e0fef85
JS		 375 int i, j;
376 int rc;
dea3101e 377
7af67051
JS		 378 spin_lock_irq(&phba->hbalock);
379 /*
380 * If the Config port completed correctly the HBA is not
381 * over heated any more.
382 */
383 if (phba->over_temp_state == HBA_OVER_TEMP)
384 phba->over_temp_state = HBA_NORMAL_TEMP;
385 spin_unlock_irq(&phba->hbalock);
386
dea3101e 387 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
388 if (!pmb) {
2e0fef85 389 phba->link_state = LPFC_HBA_ERROR;
dea3101e 390 return -ENOMEM;
391 }
04c68496 392 mb = &pmb->u.mb;
dea3101e 393
dea3101e 394 /* Get login parameters for NID. */
9f1177a3
JS		 395 rc = lpfc_read_sparam(phba, pmb, 0);
396 if (rc) {
397 mempool_free(pmb, phba->mbox_mem_pool);
398 return -ENOMEM;
399 }
400
ed957684 401 pmb->vport = vport;
dea3101e 402 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
ed957684 403 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 404 "0448 Adapter failed init, mbxCmd x%x "
dea3101e 405 "READ_SPARM mbxStatus x%x\n",
dea3101e 406 mb->mbxCommand, mb->mbxStatus);
2e0fef85 407 phba->link_state = LPFC_HBA_ERROR;
dea3101e 408 mp = (struct lpfc_dmabuf *) pmb->context1;
9f1177a3 409 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 410 lpfc_mbuf_free(phba, mp->virt, mp->phys);
411 kfree(mp);
412 return -EIO;
413 }
414
415 mp = (struct lpfc_dmabuf *) pmb->context1;
416
2e0fef85 417 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
dea3101e 418 lpfc_mbuf_free(phba, mp->virt, mp->phys);
419 kfree(mp);
420 pmb->context1 = NULL;
0558056c 421 lpfc_update_vport_wwn(vport);
a257bf90
JS		 422
423 /* Update the fc_host data structures with new wwn. */
424 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
425 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
21e9a0a5 426 fc_host_max_npiv_vports(shost) = phba->max_vpi;
a257bf90 427
dea3101e 428 /* If no serial number in VPD data, use low 6 bytes of WWNN */
429 /* This should be consolidated into parse_vpd ? - mr */
430 if (phba->SerialNumber[0] == 0) {
431 uint8_t *outptr;
432
2e0fef85 433 outptr = &vport->fc_nodename.u.s.IEEE[0];
dea3101e 434 for (i = 0; i < 12; i++) {
435 status = *outptr++;
436 j = ((status & 0xf0) >> 4);
437 if (j <= 9)
438 phba->SerialNumber[i] =
439 (char)((uint8_t) 0x30 + (uint8_t) j);
440 else
441 phba->SerialNumber[i] =
442 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
443 i++;
444 j = (status & 0xf);
445 if (j <= 9)
446 phba->SerialNumber[i] =
447 (char)((uint8_t) 0x30 + (uint8_t) j);
448 else
449 phba->SerialNumber[i] =
450 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
451 }
452 }
453
dea3101e 454 lpfc_read_config(phba, pmb);
ed957684 455 pmb->vport = vport;
dea3101e 456 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
ed957684 457 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 458 "0453 Adapter failed to init, mbxCmd x%x "
dea3101e 459 "READ_CONFIG, mbxStatus x%x\n",
dea3101e 460 mb->mbxCommand, mb->mbxStatus);
2e0fef85 461 phba->link_state = LPFC_HBA_ERROR;
dea3101e 462 mempool_free( pmb, phba->mbox_mem_pool);
463 return -EIO;
464 }
465
a0c87cbd
JS		 466 /* Check if the port is disabled */
467 lpfc_sli_read_link_ste(phba);
468
dea3101e 469 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
470 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
471 phba->cfg_hba_queue_depth =
f1126688
JS		 472 (mb->un.varRdConfig.max_xri + 1) -
473 lpfc_sli4_get_els_iocb_cnt(phba);
dea3101e 474
475 phba->lmt = mb->un.varRdConfig.lmt;
74b72a59
JW		 476
477 /* Get the default values for Model Name and Description */
478 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
479
2e0fef85 480 phba->link_state = LPFC_LINK_DOWN;
dea3101e 481
0b727fea 482 /* Only process IOCBs on ELS ring till hba_state is READY */
7e56aa25 483 if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
a4bc3379 484 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
7e56aa25 485 if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
dea3101e 486 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
7e56aa25 487 if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
dea3101e 488 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
489
490 /* Post receive buffers for desired rings */
ed957684
JS		 491 if (phba->sli_rev != 3)
492 lpfc_post_rcv_buf(phba);
dea3101e 493
9399627f
JS		 494 /*
495 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
496 */
497 if (phba->intr_type == MSIX) {
498 rc = lpfc_config_msi(phba, pmb);
499 if (rc) {
500 mempool_free(pmb, phba->mbox_mem_pool);
501 return -EIO;
502 }
503 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
504 if (rc != MBX_SUCCESS) {
505 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
506 "0352 Config MSI mailbox command "
507 "failed, mbxCmd x%x, mbxStatus x%x\n",
04c68496
JS		 508 pmb->u.mb.mbxCommand,
509 pmb->u.mb.mbxStatus);
9399627f
JS		 510 mempool_free(pmb, phba->mbox_mem_pool);
511 return -EIO;
512 }
513 }
514
04c68496 515 spin_lock_irq(&phba->hbalock);
9399627f
JS		 516 /* Initialize ERATT handling flag */
517 phba->hba_flag &= ~HBA_ERATT_HANDLED;
518
dea3101e 519 /* Enable appropriate host interrupts */
9940b97b
JS		 520 if (lpfc_readl(phba->HCregaddr, &status)) {
521 spin_unlock_irq(&phba->hbalock);
522 return -EIO;
523 }
dea3101e 524 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
525 if (psli->num_rings > 0)
526 status |= HC_R0INT_ENA;
527 if (psli->num_rings > 1)
528 status |= HC_R1INT_ENA;
529 if (psli->num_rings > 2)
530 status |= HC_R2INT_ENA;
531 if (psli->num_rings > 3)
532 status |= HC_R3INT_ENA;
533
875fbdfe
JSEC		 534 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
535 (phba->cfg_poll & DISABLE_FCP_RING_INT))
9399627f 536 status &= ~(HC_R0INT_ENA);
875fbdfe 537
dea3101e 538 writel(status, phba->HCregaddr);
539 readl(phba->HCregaddr); /* flush */
2e0fef85 540 spin_unlock_irq(&phba->hbalock);
dea3101e 541
9399627f
JS		 542 /* Set up ring-0 (ELS) timer */
543 timeout = phba->fc_ratov * 2;
2e0fef85 544 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
9399627f 545 /* Set up heart beat (HB) timer */
858c9f6c
JS		 546 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
547 phba->hb_outstanding = 0;
548 phba->last_completion_time = jiffies;
9399627f
JS		 549 /* Set up error attention (ERATT) polling timer */
550 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
dea3101e 551
a0c87cbd
JS		 552 if (phba->hba_flag & LINK_DISABLED) {
553 lpfc_printf_log(phba,
554 KERN_ERR, LOG_INIT,
555 "2598 Adapter Link is disabled.\n");
556 lpfc_down_link(phba, pmb);
557 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
558 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
559 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
560 lpfc_printf_log(phba,
561 KERN_ERR, LOG_INIT,
562 "2599 Adapter failed to issue DOWN_LINK"
563 " mbox command rc 0x%x\n", rc);
564
565 mempool_free(pmb, phba->mbox_mem_pool);
566 return -EIO;
567 }
e40a02c1 568 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
026abb87
JS		 569 mempool_free(pmb, phba->mbox_mem_pool);
570 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
571 if (rc)
572 return rc;
dea3101e 573 }
574 /* MBOX buffer will be freed in mbox compl */
57127f15 575 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9f1177a3
JS		 576 if (!pmb) {
577 phba->link_state = LPFC_HBA_ERROR;
578 return -ENOMEM;
579 }
580
57127f15
JS		 581 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
582 pmb->mbox_cmpl = lpfc_config_async_cmpl;
583 pmb->vport = phba->pport;
584 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
dea3101e 585
57127f15
JS		 586 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
587 lpfc_printf_log(phba,
588 KERN_ERR,
589 LOG_INIT,
590 "0456 Adapter failed to issue "
e4e74273 591 "ASYNCEVT_ENABLE mbox status x%x\n",
57127f15
JS		 592 rc);
593 mempool_free(pmb, phba->mbox_mem_pool);
594 }
97207482
JS		 595
596 /* Get Option rom version */
597 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9f1177a3
JS		 598 if (!pmb) {
599 phba->link_state = LPFC_HBA_ERROR;
600 return -ENOMEM;
601 }
602
97207482
JS		 603 lpfc_dump_wakeup_param(phba, pmb);
604 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
605 pmb->vport = phba->pport;
606 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
607
608 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
609 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
e4e74273 610 "to get Option ROM version status x%x\n", rc);
97207482
JS		 611 mempool_free(pmb, phba->mbox_mem_pool);
612 }
613
d7c255b2 614 return 0;
ce8b3ce5
JS		 615}
616
84d1b006
JS		 617/**
618 * lpfc_hba_init_link - Initialize the FC link
619 * @phba: pointer to lpfc hba data structure.
6e7288d9 620 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
84d1b006
JS		 621 *
622 * This routine will issue the INIT_LINK mailbox command call.
623 * It is available to other drivers through the lpfc_hba data
624 * structure for use as a delayed link up mechanism with the
625 * module parameter lpfc_suppress_link_up.
626 *
627 * Return code
628 * 0 - success
629 * Any other value - error
630 **/
631int
6e7288d9 632lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
1b51197d
JS		 633{
634 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
635}
636
637/**
638 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
639 * @phba: pointer to lpfc hba data structure.
640 * @fc_topology: desired fc topology.
641 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
642 *
643 * This routine will issue the INIT_LINK mailbox command call.
644 * It is available to other drivers through the lpfc_hba data
645 * structure for use as a delayed link up mechanism with the
646 * module parameter lpfc_suppress_link_up.
647 *
648 * Return code
649 * 0 - success
650 * Any other value - error
651 **/
652int
653lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
654 uint32_t flag)
84d1b006
JS		 655{
656 struct lpfc_vport *vport = phba->pport;
657 LPFC_MBOXQ_t *pmb;
658 MAILBOX_t *mb;
659 int rc;
660
661 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
662 if (!pmb) {
663 phba->link_state = LPFC_HBA_ERROR;
664 return -ENOMEM;
665 }
666 mb = &pmb->u.mb;
667 pmb->vport = vport;
668
026abb87
JS		 669 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
670 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
671 !(phba->lmt & LMT_1Gb)) ||
672 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
673 !(phba->lmt & LMT_2Gb)) ||
674 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
675 !(phba->lmt & LMT_4Gb)) ||
676 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
677 !(phba->lmt & LMT_8Gb)) ||
678 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
679 !(phba->lmt & LMT_10Gb)) ||
680 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
681 !(phba->lmt & LMT_16Gb))) {
682 /* Reset link speed to auto */
683 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
684 "1302 Invalid speed for this board:%d "
685 "Reset link speed to auto.\n",
686 phba->cfg_link_speed);
687 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
688 }
1b51197d 689 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
84d1b006 690 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1b51197d
JS		 691 if (phba->sli_rev < LPFC_SLI_REV4)
692 lpfc_set_loopback_flag(phba);
6e7288d9 693 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
76a95d75 694 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
84d1b006
JS		 695 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
696 "0498 Adapter failed to init, mbxCmd x%x "
697 "INIT_LINK, mbxStatus x%x\n",
698 mb->mbxCommand, mb->mbxStatus);
76a95d75
JS		 699 if (phba->sli_rev <= LPFC_SLI_REV3) {
700 /* Clear all interrupt enable conditions */
701 writel(0, phba->HCregaddr);
702 readl(phba->HCregaddr); /* flush */
703 /* Clear all pending interrupts */
704 writel(0xffffffff, phba->HAregaddr);
705 readl(phba->HAregaddr); /* flush */
706 }
84d1b006 707 phba->link_state = LPFC_HBA_ERROR;
6e7288d9 708 if (rc != MBX_BUSY || flag == MBX_POLL)
84d1b006
JS		 709 mempool_free(pmb, phba->mbox_mem_pool);
710 return -EIO;
711 }
e40a02c1 712 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
6e7288d9
JS		 713 if (flag == MBX_POLL)
714 mempool_free(pmb, phba->mbox_mem_pool);
84d1b006
JS		 715
716 return 0;
717}
718
719/**
720 * lpfc_hba_down_link - this routine downs the FC link
6e7288d9
JS		 721 * @phba: pointer to lpfc hba data structure.
722 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
84d1b006
JS		 723 *
724 * This routine will issue the DOWN_LINK mailbox command call.
725 * It is available to other drivers through the lpfc_hba data
726 * structure for use to stop the link.
727 *
728 * Return code
729 * 0 - success
730 * Any other value - error
731 **/
732int
6e7288d9 733lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
84d1b006
JS		 734{
735 LPFC_MBOXQ_t *pmb;
736 int rc;
737
738 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
739 if (!pmb) {
740 phba->link_state = LPFC_HBA_ERROR;
741 return -ENOMEM;
742 }
743
744 lpfc_printf_log(phba,
745 KERN_ERR, LOG_INIT,
746 "0491 Adapter Link is disabled.\n");
747 lpfc_down_link(phba, pmb);
748 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
6e7288d9 749 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
84d1b006
JS		 750 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
751 lpfc_printf_log(phba,
752 KERN_ERR, LOG_INIT,
753 "2522 Adapter failed to issue DOWN_LINK"
754 " mbox command rc 0x%x\n", rc);
755
756 mempool_free(pmb, phba->mbox_mem_pool);
757 return -EIO;
758 }
6e7288d9
JS		 759 if (flag == MBX_POLL)
760 mempool_free(pmb, phba->mbox_mem_pool);
761
84d1b006
JS		 762 return 0;
763}
764
e59058c4 765/**
3621a710 766 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
e59058c4
JS		 767 * @phba: pointer to lpfc HBA data structure.
768 *
769 * This routine will do LPFC uninitialization before the HBA is reset when
770 * bringing down the SLI Layer.
771 *
772 * Return codes
773 * 0 - success.
774 * Any other value - error.
775 **/
dea3101e 776int
2e0fef85 777lpfc_hba_down_prep(struct lpfc_hba *phba)
dea3101e 778{
1b32f6aa
JS		 779 struct lpfc_vport **vports;
780 int i;
3772a991
JS		 781
782 if (phba->sli_rev <= LPFC_SLI_REV3) {
783 /* Disable interrupts */
784 writel(0, phba->HCregaddr);
785 readl(phba->HCregaddr); /* flush */
786 }
dea3101e 787
1b32f6aa
JS		 788 if (phba->pport->load_flag & FC_UNLOADING)
789 lpfc_cleanup_discovery_resources(phba->pport);
790 else {
791 vports = lpfc_create_vport_work_array(phba);
792 if (vports != NULL)
3772a991
JS		 793 for (i = 0; i <= phba->max_vports &&
794 vports[i] != NULL; i++)
1b32f6aa
JS		 795 lpfc_cleanup_discovery_resources(vports[i]);
796 lpfc_destroy_vport_work_array(phba, vports);
7f5f3d0d
JS		 797 }
798 return 0;
dea3101e 799}
800
e59058c4 801/**
3772a991 802 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
e59058c4
JS		 803 * @phba: pointer to lpfc HBA data structure.
804 *
805 * This routine will do uninitialization after the HBA is reset when bring
806 * down the SLI Layer.
807 *
808 * Return codes
af901ca1 809 * 0 - success.
e59058c4
JS		 810 * Any other value - error.
811 **/
3772a991
JS		 812static int
813lpfc_hba_down_post_s3(struct lpfc_hba *phba)
41415862
JW		 814{
815 struct lpfc_sli *psli = &phba->sli;
816 struct lpfc_sli_ring *pring;
817 struct lpfc_dmabuf *mp, *next_mp;
09372820 818 LIST_HEAD(completions);
41415862
JW		 819 int i;
820
92d7f7b0
JS		 821 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
822 lpfc_sli_hbqbuf_free_all(phba);
823 else {
824 /* Cleanup preposted buffers on the ELS ring */
825 pring = &psli->ring[LPFC_ELS_RING];
826 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
827 list_del(&mp->list);
828 pring->postbufq_cnt--;
829 lpfc_mbuf_free(phba, mp->virt, mp->phys);
830 kfree(mp);
831 }
41415862
JW		 832 }
833
09372820 834 spin_lock_irq(&phba->hbalock);
41415862
JW		 835 for (i = 0; i < psli->num_rings; i++) {
836 pring = &psli->ring[i];
09372820
JS		 837
838 /* At this point in time the HBA is either reset or DOA. Either
839 * way, nothing should be on txcmplq as it will NEVER complete.
840 */
841 list_splice_init(&pring->txcmplq, &completions);
842 pring->txcmplq_cnt = 0;
843 spin_unlock_irq(&phba->hbalock);
844
a257bf90
JS		 845 /* Cancel all the IOCBs from the completions list */
846 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
847 IOERR_SLI_ABORTED);
09372820 848
41415862 849 lpfc_sli_abort_iocb_ring(phba, pring);
09372820 850 spin_lock_irq(&phba->hbalock);
41415862 851 }
09372820 852 spin_unlock_irq(&phba->hbalock);
41415862
JW		 853
854 return 0;
855}
5af5eee7 856
da0436e9
JS		 857/**
858 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
859 * @phba: pointer to lpfc HBA data structure.
860 *
861 * This routine will do uninitialization after the HBA is reset when bring
862 * down the SLI Layer.
863 *
864 * Return codes
af901ca1 865 * 0 - success.
da0436e9
JS		 866 * Any other value - error.
867 **/
868static int
869lpfc_hba_down_post_s4(struct lpfc_hba *phba)
870{
871 struct lpfc_scsi_buf *psb, *psb_next;
872 LIST_HEAD(aborts);
873 int ret;
874 unsigned long iflag = 0;
0f65ff68
JS		 875 struct lpfc_sglq *sglq_entry = NULL;
876
da0436e9
JS		 877 ret = lpfc_hba_down_post_s3(phba);
878 if (ret)
879 return ret;
880 /* At this point in time the HBA is either reset or DOA. Either
881 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
882 * on the lpfc_sgl_list so that it can either be freed if the
883 * driver is unloading or reposted if the driver is restarting
884 * the port.
885 */
886 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
887 /* scsl_buf_list */
888 /* abts_sgl_list_lock required because worker thread uses this
889 * list.
890 */
891 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
0f65ff68
JS		 892 list_for_each_entry(sglq_entry,
893 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
894 sglq_entry->state = SGL_FREED;
895
da0436e9
JS		 896 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
897 &phba->sli4_hba.lpfc_sgl_list);
898 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
899 /* abts_scsi_buf_list_lock required because worker thread uses this
900 * list.
901 */
902 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
903 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
904 &aborts);
905 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
906 spin_unlock_irq(&phba->hbalock);
907
908 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
909 psb->pCmd = NULL;
910 psb->status = IOSTAT_SUCCESS;
911 }
912 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
913 list_splice(&aborts, &phba->lpfc_scsi_buf_list);
914 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
915 return 0;
916}
917
918/**
919 * lpfc_hba_down_post - Wrapper func for hba down post routine
920 * @phba: pointer to lpfc HBA data structure.
921 *
922 * This routine wraps the actual SLI3 or SLI4 routine for performing
923 * uninitialization after the HBA is reset when bring down the SLI Layer.
924 *
925 * Return codes
af901ca1 926 * 0 - success.
da0436e9
JS		 927 * Any other value - error.
928 **/
929int
930lpfc_hba_down_post(struct lpfc_hba *phba)
931{
932 return (*phba->lpfc_hba_down_post)(phba);
933}
41415862 934
e59058c4 935/**
3621a710 936 * lpfc_hb_timeout - The HBA-timer timeout handler
e59058c4
JS		 937 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
938 *
939 * This is the HBA-timer timeout handler registered to the lpfc driver. When
940 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
941 * work-port-events bitmap and the worker thread is notified. This timeout
942 * event will be used by the worker thread to invoke the actual timeout
943 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
944 * be performed in the timeout handler and the HBA timeout event bit shall
945 * be cleared by the worker thread after it has taken the event bitmap out.
946 **/
a6ababd2 947static void
858c9f6c
JS		 948lpfc_hb_timeout(unsigned long ptr)
949{
950 struct lpfc_hba *phba;
5e9d9b82 951 uint32_t tmo_posted;
858c9f6c
JS		 952 unsigned long iflag;
953
954 phba = (struct lpfc_hba *)ptr;
9399627f
JS		 955
956 /* Check for heart beat timeout conditions */
858c9f6c 957 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
5e9d9b82
JS		 958 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
959 if (!tmo_posted)
858c9f6c
JS		 960 phba->pport->work_port_events |= WORKER_HB_TMO;
961 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
962
9399627f 963 /* Tell the worker thread there is work to do */
5e9d9b82
JS		 964 if (!tmo_posted)
965 lpfc_worker_wake_up(phba);
858c9f6c
JS		 966 return;
967}
968
19ca7609
JS		 969/**
970 * lpfc_rrq_timeout - The RRQ-timer timeout handler
971 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
972 *
973 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
974 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
975 * work-port-events bitmap and the worker thread is notified. This timeout
976 * event will be used by the worker thread to invoke the actual timeout
977 * handler routine, lpfc_rrq_handler. Any periodical operations will
978 * be performed in the timeout handler and the RRQ timeout event bit shall
979 * be cleared by the worker thread after it has taken the event bitmap out.
980 **/
981static void
982lpfc_rrq_timeout(unsigned long ptr)
983{
984 struct lpfc_hba *phba;
19ca7609
JS		 985 unsigned long iflag;
986
987 phba = (struct lpfc_hba *)ptr;
988 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1151e3ec 989 phba->hba_flag |= HBA_RRQ_ACTIVE;
19ca7609 990 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1151e3ec 991 lpfc_worker_wake_up(phba);
19ca7609
JS		 992}
993
e59058c4 994/**
3621a710 995 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
e59058c4
JS		 996 * @phba: pointer to lpfc hba data structure.
997 * @pmboxq: pointer to the driver internal queue element for mailbox command.
998 *
999 * This is the callback function to the lpfc heart-beat mailbox command.
1000 * If configured, the lpfc driver issues the heart-beat mailbox command to
1001 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1002 * heart-beat mailbox command is issued, the driver shall set up heart-beat
1003 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1004 * heart-beat outstanding state. Once the mailbox command comes back and
1005 * no error conditions detected, the heart-beat mailbox command timer is
1006 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1007 * state is cleared for the next heart-beat. If the timer expired with the
1008 * heart-beat outstanding state set, the driver will put the HBA offline.
1009 **/
858c9f6c
JS		 1010static void
1011lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1012{
1013 unsigned long drvr_flag;
1014
1015 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1016 phba->hb_outstanding = 0;
1017 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1018
9399627f 1019 /* Check and reset heart-beat timer is necessary */
858c9f6c
JS		 1020 mempool_free(pmboxq, phba->mbox_mem_pool);
1021 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1022 !(phba->link_state == LPFC_HBA_ERROR) &&
51ef4c26 1023 !(phba->pport->load_flag & FC_UNLOADING))
858c9f6c
JS		 1024 mod_timer(&phba->hb_tmofunc,
1025 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1026 return;
1027}
1028
e59058c4 1029/**
3621a710 1030 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
e59058c4
JS		 1031 * @phba: pointer to lpfc hba data structure.
1032 *
1033 * This is the actual HBA-timer timeout handler to be invoked by the worker
1034 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1035 * handler performs any periodic operations needed for the device. If such
1036 * periodic event has already been attended to either in the interrupt handler
1037 * or by processing slow-ring or fast-ring events within the HBA-timer
1038 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1039 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1040 * is configured and there is no heart-beat mailbox command outstanding, a
1041 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1042 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1043 * to offline.
1044 **/
858c9f6c
JS		 1045void
1046lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1047{
45ed1190 1048 struct lpfc_vport **vports;
858c9f6c 1049 LPFC_MBOXQ_t *pmboxq;
0ff10d46 1050 struct lpfc_dmabuf *buf_ptr;
45ed1190 1051 int retval, i;
858c9f6c 1052 struct lpfc_sli *psli = &phba->sli;
0ff10d46 1053 LIST_HEAD(completions);
858c9f6c 1054
45ed1190
JS		 1055 vports = lpfc_create_vport_work_array(phba);
1056 if (vports != NULL)
1057 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1058 lpfc_rcv_seq_check_edtov(vports[i]);
1059 lpfc_destroy_vport_work_array(phba, vports);
1060
858c9f6c 1061 if ((phba->link_state == LPFC_HBA_ERROR) ||
51ef4c26 1062 (phba->pport->load_flag & FC_UNLOADING) ||
858c9f6c
JS		 1063 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1064 return;
1065
1066 spin_lock_irq(&phba->pport->work_port_lock);
858c9f6c
JS		 1067
1068 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1069 jiffies)) {
1070 spin_unlock_irq(&phba->pport->work_port_lock);
1071 if (!phba->hb_outstanding)
1072 mod_timer(&phba->hb_tmofunc,
1073 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1074 else
1075 mod_timer(&phba->hb_tmofunc,
1076 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1077 return;
1078 }
1079 spin_unlock_irq(&phba->pport->work_port_lock);
1080
0ff10d46
JS		 1081 if (phba->elsbuf_cnt &&
1082 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1083 spin_lock_irq(&phba->hbalock);
1084 list_splice_init(&phba->elsbuf, &completions);
1085 phba->elsbuf_cnt = 0;
1086 phba->elsbuf_prev_cnt = 0;
1087 spin_unlock_irq(&phba->hbalock);
1088
1089 while (!list_empty(&completions)) {
1090 list_remove_head(&completions, buf_ptr,
1091 struct lpfc_dmabuf, list);
1092 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1093 kfree(buf_ptr);
1094 }
1095 }
1096 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1097
858c9f6c 1098 /* If there is no heart beat outstanding, issue a heartbeat command */
13815c83
JS		 1099 if (phba->cfg_enable_hba_heartbeat) {
1100 if (!phba->hb_outstanding) {
bc73905a
JS		 1101 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1102 (list_empty(&psli->mboxq))) {
1103 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1104 GFP_KERNEL);
1105 if (!pmboxq) {
1106 mod_timer(&phba->hb_tmofunc,
1107 jiffies +
1108 HZ * LPFC_HB_MBOX_INTERVAL);
1109 return;
1110 }
1111
1112 lpfc_heart_beat(phba, pmboxq);
1113 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1114 pmboxq->vport = phba->pport;
1115 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1116 MBX_NOWAIT);
1117
1118 if (retval != MBX_BUSY &&
1119 retval != MBX_SUCCESS) {
1120 mempool_free(pmboxq,
1121 phba->mbox_mem_pool);
1122 mod_timer(&phba->hb_tmofunc,
1123 jiffies +
1124 HZ * LPFC_HB_MBOX_INTERVAL);
1125 return;
1126 }
1127 phba->skipped_hb = 0;
1128 phba->hb_outstanding = 1;
1129 } else if (time_before_eq(phba->last_completion_time,
1130 phba->skipped_hb)) {
1131 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1132 "2857 Last completion time not "
1133 " updated in %d ms\n",
1134 jiffies_to_msecs(jiffies
1135 - phba->last_completion_time));
1136 } else
1137 phba->skipped_hb = jiffies;
1138
858c9f6c 1139 mod_timer(&phba->hb_tmofunc,
13815c83 1140 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
858c9f6c 1141 return;
13815c83
JS		 1142 } else {
1143 /*
1144 * If heart beat timeout called with hb_outstanding set
dcf2a4e0
JS		 1145 * we need to give the hb mailbox cmd a chance to
1146 * complete or TMO.
13815c83 1147 */
dcf2a4e0
JS		 1148 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1149 "0459 Adapter heartbeat still out"
1150 "standing:last compl time was %d ms.\n",
1151 jiffies_to_msecs(jiffies
1152 - phba->last_completion_time));
1153 mod_timer(&phba->hb_tmofunc,
1154 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
858c9f6c 1155 }
858c9f6c
JS		 1156 }
1157}
1158
e59058c4 1159/**
3621a710 1160 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
e59058c4
JS		 1161 * @phba: pointer to lpfc hba data structure.
1162 *
1163 * This routine is called to bring the HBA offline when HBA hardware error
1164 * other than Port Error 6 has been detected.
1165 **/
09372820
JS		 1166static void
1167lpfc_offline_eratt(struct lpfc_hba *phba)
1168{
1169 struct lpfc_sli *psli = &phba->sli;
1170
1171 spin_lock_irq(&phba->hbalock);
f4b4c68f 1172 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
09372820 1173 spin_unlock_irq(&phba->hbalock);
618a5230 1174 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
09372820
JS		 1175
1176 lpfc_offline(phba);
1177 lpfc_reset_barrier(phba);
f4b4c68f 1178 spin_lock_irq(&phba->hbalock);
09372820 1179 lpfc_sli_brdreset(phba);
f4b4c68f 1180 spin_unlock_irq(&phba->hbalock);
09372820
JS		 1181 lpfc_hba_down_post(phba);
1182 lpfc_sli_brdready(phba, HS_MBRDY);
1183 lpfc_unblock_mgmt_io(phba);
1184 phba->link_state = LPFC_HBA_ERROR;
1185 return;
1186}
1187
da0436e9
JS		 1188/**
1189 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1190 * @phba: pointer to lpfc hba data structure.
1191 *
1192 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1193 * other than Port Error 6 has been detected.
1194 **/
1195static void
1196lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1197{
618a5230 1198 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
da0436e9
JS		 1199 lpfc_offline(phba);
1200 lpfc_sli4_brdreset(phba);
1201 lpfc_hba_down_post(phba);
1202 lpfc_sli4_post_status_check(phba);
1203 lpfc_unblock_mgmt_io(phba);
1204 phba->link_state = LPFC_HBA_ERROR;
1205}
1206
a257bf90
JS		 1207/**
1208 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1209 * @phba: pointer to lpfc hba data structure.
1210 *
1211 * This routine is invoked to handle the deferred HBA hardware error
1212 * conditions. This type of error is indicated by HBA by setting ER1
1213 * and another ER bit in the host status register. The driver will
1214 * wait until the ER1 bit clears before handling the error condition.
1215 **/
1216static void
1217lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1218{
1219 uint32_t old_host_status = phba->work_hs;
1220 struct lpfc_sli_ring *pring;
1221 struct lpfc_sli *psli = &phba->sli;
1222
f4b4c68f
JS		 1223 /* If the pci channel is offline, ignore possible errors,
1224 * since we cannot communicate with the pci card anyway.
1225 */
1226 if (pci_channel_offline(phba->pcidev)) {
1227 spin_lock_irq(&phba->hbalock);
1228 phba->hba_flag &= ~DEFER_ERATT;
1229 spin_unlock_irq(&phba->hbalock);
1230 return;
1231 }
1232
a257bf90
JS		 1233 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1234 "0479 Deferred Adapter Hardware Error "
1235 "Data: x%x x%x x%x\n",
1236 phba->work_hs,
1237 phba->work_status[0], phba->work_status[1]);
1238
1239 spin_lock_irq(&phba->hbalock);
f4b4c68f 1240 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
a257bf90
JS		 1241 spin_unlock_irq(&phba->hbalock);
1242
1243
1244 /*
1245 * Firmware stops when it triggred erratt. That could cause the I/Os
1246 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1247 * SCSI layer retry it after re-establishing link.
1248 */
1249 pring = &psli->ring[psli->fcp_ring];
1250 lpfc_sli_abort_iocb_ring(phba, pring);
1251
1252 /*
1253 * There was a firmware error. Take the hba offline and then
1254 * attempt to restart it.
1255 */
618a5230 1256 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
a257bf90
JS		 1257 lpfc_offline(phba);
1258
1259 /* Wait for the ER1 bit to clear.*/
1260 while (phba->work_hs & HS_FFER1) {
1261 msleep(100);
9940b97b
JS		 1262 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1263 phba->work_hs = UNPLUG_ERR ;
1264 break;
1265 }
a257bf90
JS		 1266 /* If driver is unloading let the worker thread continue */
1267 if (phba->pport->load_flag & FC_UNLOADING) {
1268 phba->work_hs = 0;
1269 break;
1270 }
1271 }
1272
1273 /*
1274 * This is to ptrotect against a race condition in which
1275 * first write to the host attention register clear the
1276 * host status register.
1277 */
1278 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1279 phba->work_hs = old_host_status & ~HS_FFER1;
1280
3772a991 1281 spin_lock_irq(&phba->hbalock);
a257bf90 1282 phba->hba_flag &= ~DEFER_ERATT;
3772a991 1283 spin_unlock_irq(&phba->hbalock);
a257bf90
JS		 1284 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1285 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1286}
1287
3772a991
JS		 1288static void
1289lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1290{
1291 struct lpfc_board_event_header board_event;
1292 struct Scsi_Host *shost;
1293
1294 board_event.event_type = FC_REG_BOARD_EVENT;
1295 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1296 shost = lpfc_shost_from_vport(phba->pport);
1297 fc_host_post_vendor_event(shost, fc_get_event_number(),
1298 sizeof(board_event),
1299 (char *) &board_event,
1300 LPFC_NL_VENDOR_ID);
1301}
1302
e59058c4 1303/**
3772a991 1304 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
e59058c4
JS		 1305 * @phba: pointer to lpfc hba data structure.
1306 *
1307 * This routine is invoked to handle the following HBA hardware error
1308 * conditions:
1309 * 1 - HBA error attention interrupt
1310 * 2 - DMA ring index out of range
1311 * 3 - Mailbox command came back as unknown
1312 **/
3772a991
JS		 1313static void
1314lpfc_handle_eratt_s3(struct lpfc_hba *phba)
dea3101e 1315{
2e0fef85 1316 struct lpfc_vport *vport = phba->pport;
2e0fef85 1317 struct lpfc_sli *psli = &phba->sli;
dea3101e 1318 struct lpfc_sli_ring *pring;
d2873e4c 1319 uint32_t event_data;
57127f15
JS		 1320 unsigned long temperature;
1321 struct temp_event temp_event_data;
92d7f7b0 1322 struct Scsi_Host *shost;
2e0fef85 1323
8d63f375 1324 /* If the pci channel is offline, ignore possible errors,
3772a991
JS		 1325 * since we cannot communicate with the pci card anyway.
1326 */
1327 if (pci_channel_offline(phba->pcidev)) {
1328 spin_lock_irq(&phba->hbalock);
1329 phba->hba_flag &= ~DEFER_ERATT;
1330 spin_unlock_irq(&phba->hbalock);
8d63f375 1331 return;
3772a991
JS		 1332 }
1333
13815c83
JS		 1334 /* If resets are disabled then leave the HBA alone and return */
1335 if (!phba->cfg_enable_hba_reset)
1336 return;
dea3101e 1337
ea2151b4 1338 /* Send an internal error event to mgmt application */
3772a991 1339 lpfc_board_errevt_to_mgmt(phba);
ea2151b4 1340
a257bf90
JS		 1341 if (phba->hba_flag & DEFER_ERATT)
1342 lpfc_handle_deferred_eratt(phba);
1343
dcf2a4e0
JS		 1344 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1345 if (phba->work_hs & HS_FFER6)
1346 /* Re-establishing Link */
1347 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1348 "1301 Re-establishing Link "
1349 "Data: x%x x%x x%x\n",
1350 phba->work_hs, phba->work_status[0],
1351 phba->work_status[1]);
1352 if (phba->work_hs & HS_FFER8)
1353 /* Device Zeroization */
1354 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1355 "2861 Host Authentication device "
1356 "zeroization Data:x%x x%x x%x\n",
1357 phba->work_hs, phba->work_status[0],
1358 phba->work_status[1]);
58da1ffb 1359
92d7f7b0 1360 spin_lock_irq(&phba->hbalock);
f4b4c68f 1361 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
92d7f7b0 1362 spin_unlock_irq(&phba->hbalock);
dea3101e 1363
1364 /*
1365 * Firmware stops when it triggled erratt with HS_FFER6.
1366 * That could cause the I/Os dropped by the firmware.
1367 * Error iocb (I/O) on txcmplq and let the SCSI layer
1368 * retry it after re-establishing link.
1369 */
1370 pring = &psli->ring[psli->fcp_ring];
1371 lpfc_sli_abort_iocb_ring(phba, pring);
1372
dea3101e 1373 /*
1374 * There was a firmware error. Take the hba offline and then
1375 * attempt to restart it.
1376 */
618a5230 1377 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
dea3101e 1378 lpfc_offline(phba);
41415862 1379 lpfc_sli_brdrestart(phba);
dea3101e 1380 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
46fa311e 1381 lpfc_unblock_mgmt_io(phba);
dea3101e 1382 return;
1383 }
46fa311e 1384 lpfc_unblock_mgmt_io(phba);
57127f15
JS		 1385 } else if (phba->work_hs & HS_CRIT_TEMP) {
1386 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1387 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1388 temp_event_data.event_code = LPFC_CRIT_TEMP;
1389 temp_event_data.data = (uint32_t)temperature;
1390
1391 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
d7c255b2 1392 "0406 Adapter maximum temperature exceeded "
57127f15
JS		 1393 "(%ld), taking this port offline "
1394 "Data: x%x x%x x%x\n",
1395 temperature, phba->work_hs,
1396 phba->work_status[0], phba->work_status[1]);
1397
1398 shost = lpfc_shost_from_vport(phba->pport);
1399 fc_host_post_vendor_event(shost, fc_get_event_number(),
1400 sizeof(temp_event_data),
1401 (char *) &temp_event_data,
1402 SCSI_NL_VID_TYPE_PCI
1403 | PCI_VENDOR_ID_EMULEX);
1404
7af67051 1405 spin_lock_irq(&phba->hbalock);
7af67051
JS		 1406 phba->over_temp_state = HBA_OVER_TEMP;
1407 spin_unlock_irq(&phba->hbalock);
09372820 1408 lpfc_offline_eratt(phba);
57127f15 1409
dea3101e 1410 } else {
1411 /* The if clause above forces this code path when the status
9399627f
JS		 1412 * failure is a value other than FFER6. Do not call the offline
1413 * twice. This is the adapter hardware error path.
dea3101e 1414 */
1415 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 1416 "0457 Adapter Hardware Error "
dea3101e 1417 "Data: x%x x%x x%x\n",
e8b62011 1418 phba->work_hs,
dea3101e 1419 phba->work_status[0], phba->work_status[1]);
1420
d2873e4c 1421 event_data = FC_REG_DUMP_EVENT;
92d7f7b0 1422 shost = lpfc_shost_from_vport(vport);
2e0fef85 1423 fc_host_post_vendor_event(shost, fc_get_event_number(),
d2873e4c
JS		 1424 sizeof(event_data), (char *) &event_data,
1425 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1426
09372820 1427 lpfc_offline_eratt(phba);
dea3101e 1428 }
9399627f 1429 return;
dea3101e 1430}
1431
618a5230
JS		 1432/**
1433 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1434 * @phba: pointer to lpfc hba data structure.
1435 * @mbx_action: flag for mailbox shutdown action.
1436 *
1437 * This routine is invoked to perform an SLI4 port PCI function reset in
1438 * response to port status register polling attention. It waits for port
1439 * status register (ERR, RDY, RN) bits before proceeding with function reset.
1440 * During this process, interrupt vectors are freed and later requested
1441 * for handling possible port resource change.
1442 **/
1443static int
1444lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action)
1445{
1446 int rc;
1447 uint32_t intr_mode;
1448
1449 /*
1450 * On error status condition, driver need to wait for port
1451 * ready before performing reset.
1452 */
1453 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1454 if (!rc) {
1455 /* need reset: attempt for port recovery */
1456 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1457 "2887 Reset Needed: Attempting Port "
1458 "Recovery...\n");
1459 lpfc_offline_prep(phba, mbx_action);
1460 lpfc_offline(phba);
1461 /* release interrupt for possible resource change */
1462 lpfc_sli4_disable_intr(phba);
1463 lpfc_sli_brdrestart(phba);
1464 /* request and enable interrupt */
1465 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1466 if (intr_mode == LPFC_INTR_ERROR) {
1467 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1468 "3175 Failed to enable interrupt\n");
1469 return -EIO;
1470 } else {
1471 phba->intr_mode = intr_mode;
1472 }
1473 rc = lpfc_online(phba);
1474 if (rc == 0)
1475 lpfc_unblock_mgmt_io(phba);
1476 }
1477 return rc;
1478}
1479
da0436e9
JS		 1480/**
1481 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1482 * @phba: pointer to lpfc hba data structure.
1483 *
1484 * This routine is invoked to handle the SLI4 HBA hardware error attention
1485 * conditions.
1486 **/
1487static void
1488lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1489{
1490 struct lpfc_vport *vport = phba->pport;
1491 uint32_t event_data;
1492 struct Scsi_Host *shost;
2fcee4bf 1493 uint32_t if_type;
2e90f4b5
JS		 1494 struct lpfc_register portstat_reg = {0};
1495 uint32_t reg_err1, reg_err2;
1496 uint32_t uerrlo_reg, uemasklo_reg;
1497 uint32_t pci_rd_rc1, pci_rd_rc2;
73d91e50 1498 int rc;
da0436e9
JS		 1499
1500 /* If the pci channel is offline, ignore possible errors, since
1501 * we cannot communicate with the pci card anyway.
1502 */
1503 if (pci_channel_offline(phba->pcidev))
1504 return;
1505 /* If resets are disabled then leave the HBA alone and return */
1506 if (!phba->cfg_enable_hba_reset)
1507 return;
1508
2fcee4bf
JS		 1509 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1510 switch (if_type) {
1511 case LPFC_SLI_INTF_IF_TYPE_0:
2e90f4b5
JS		 1512 pci_rd_rc1 = lpfc_readl(
1513 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1514 &uerrlo_reg);
1515 pci_rd_rc2 = lpfc_readl(
1516 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1517 &uemasklo_reg);
1518 /* consider PCI bus read error as pci_channel_offline */
1519 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1520 return;
2fcee4bf
JS		 1521 lpfc_sli4_offline_eratt(phba);
1522 break;
1523 case LPFC_SLI_INTF_IF_TYPE_2:
2e90f4b5
JS		 1524 pci_rd_rc1 = lpfc_readl(
1525 phba->sli4_hba.u.if_type2.STATUSregaddr,
1526 &portstat_reg.word0);
1527 /* consider PCI bus read error as pci_channel_offline */
6b5151fd
JS		 1528 if (pci_rd_rc1 == -EIO) {
1529 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1530 "3151 PCI bus read access failure: x%x\n",
1531 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
2e90f4b5 1532 return;
6b5151fd 1533 }
2e90f4b5
JS		 1534 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1535 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
2fcee4bf
JS		 1536 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1537 /* TODO: Register for Overtemp async events. */
1538 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1539 "2889 Port Overtemperature event, "
026abb87 1540 "taking port offline\n");
2fcee4bf
JS		 1541 spin_lock_irq(&phba->hbalock);
1542 phba->over_temp_state = HBA_OVER_TEMP;
1543 spin_unlock_irq(&phba->hbalock);
1544 lpfc_sli4_offline_eratt(phba);
2e90f4b5 1545 break;
2fcee4bf 1546 }
2e90f4b5
JS		 1547 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1548 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART)
1549 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1550 "3143 Port Down: Firmware Restarted\n");
1551 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1552 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1554 "3144 Port Down: Debug Dump\n");
1555 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1556 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1557 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1558 "3145 Port Down: Provisioning\n");
618a5230
JS		 1559
1560 /* Check port status register for function reset */
1561 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT);
1562 if (rc == 0) {
1563 /* don't report event on forced debug dump */
1564 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1565 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1566 return;
1567 else
1568 break;
2fcee4bf 1569 }
618a5230 1570 /* fall through for not able to recover */
6b5151fd
JS		 1571 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1572 "3152 Unrecoverable error, bring the port "
1573 "offline\n");
2fcee4bf
JS		 1574 lpfc_sli4_offline_eratt(phba);
1575 break;
1576 case LPFC_SLI_INTF_IF_TYPE_1:
1577 default:
1578 break;
1579 }
2e90f4b5
JS		 1580 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1581 "3123 Report dump event to upper layer\n");
1582 /* Send an internal error event to mgmt application */
1583 lpfc_board_errevt_to_mgmt(phba);
1584
1585 event_data = FC_REG_DUMP_EVENT;
1586 shost = lpfc_shost_from_vport(vport);
1587 fc_host_post_vendor_event(shost, fc_get_event_number(),
1588 sizeof(event_data), (char *) &event_data,
1589 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
da0436e9
JS		 1590}
1591
1592/**
1593 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1594 * @phba: pointer to lpfc HBA data structure.
1595 *
1596 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1597 * routine from the API jump table function pointer from the lpfc_hba struct.
1598 *
1599 * Return codes
af901ca1 1600 * 0 - success.
da0436e9
JS		 1601 * Any other value - error.
1602 **/
1603void
1604lpfc_handle_eratt(struct lpfc_hba *phba)
1605{
1606 (*phba->lpfc_handle_eratt)(phba);
1607}
1608
e59058c4 1609/**
3621a710 1610 * lpfc_handle_latt - The HBA link event handler
e59058c4
JS		 1611 * @phba: pointer to lpfc hba data structure.
1612 *
1613 * This routine is invoked from the worker thread to handle a HBA host
1614 * attention link event.
1615 **/
dea3101e 1616void
2e0fef85 1617lpfc_handle_latt(struct lpfc_hba *phba)
dea3101e 1618{
2e0fef85
JS		 1619 struct lpfc_vport *vport = phba->pport;
1620 struct lpfc_sli *psli = &phba->sli;
dea3101e 1621 LPFC_MBOXQ_t *pmb;
1622 volatile uint32_t control;
1623 struct lpfc_dmabuf *mp;
09372820 1624 int rc = 0;
dea3101e 1625
1626 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
09372820
JS		 1627 if (!pmb) {
1628 rc = 1;
dea3101e 1629 goto lpfc_handle_latt_err_exit;
09372820 1630 }
dea3101e 1631
1632 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
09372820
JS		 1633 if (!mp) {
1634 rc = 2;
dea3101e 1635 goto lpfc_handle_latt_free_pmb;
09372820 1636 }
dea3101e 1637
1638 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
09372820
JS		 1639 if (!mp->virt) {
1640 rc = 3;
dea3101e 1641 goto lpfc_handle_latt_free_mp;
09372820 1642 }
dea3101e 1643
6281bfe0 1644 /* Cleanup any outstanding ELS commands */
549e55cd 1645 lpfc_els_flush_all_cmd(phba);
dea3101e 1646
1647 psli->slistat.link_event++;
76a95d75
JS		 1648 lpfc_read_topology(phba, pmb, mp);
1649 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2e0fef85 1650 pmb->vport = vport;
0d2b6b83
JS		 1651 /* Block ELS IOCBs until we have processed this mbox command */
1652 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
0b727fea 1653 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
09372820
JS		 1654 if (rc == MBX_NOT_FINISHED) {
1655 rc = 4;
14691150 1656 goto lpfc_handle_latt_free_mbuf;
09372820 1657 }
dea3101e 1658
1659 /* Clear Link Attention in HA REG */
2e0fef85 1660 spin_lock_irq(&phba->hbalock);
dea3101e 1661 writel(HA_LATT, phba->HAregaddr);
1662 readl(phba->HAregaddr); /* flush */
2e0fef85 1663 spin_unlock_irq(&phba->hbalock);
dea3101e 1664
1665 return;
1666
14691150 1667lpfc_handle_latt_free_mbuf:
0d2b6b83 1668 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
14691150 1669 lpfc_mbuf_free(phba, mp->virt, mp->phys);
dea3101e 1670lpfc_handle_latt_free_mp:
1671 kfree(mp);
1672lpfc_handle_latt_free_pmb:
1dcb58e5 1673 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 1674lpfc_handle_latt_err_exit:
1675 /* Enable Link attention interrupts */
2e0fef85 1676 spin_lock_irq(&phba->hbalock);
dea3101e 1677 psli->sli_flag |= LPFC_PROCESS_LA;
1678 control = readl(phba->HCregaddr);
1679 control |= HC_LAINT_ENA;
1680 writel(control, phba->HCregaddr);
1681 readl(phba->HCregaddr); /* flush */
1682
1683 /* Clear Link Attention in HA REG */
1684 writel(HA_LATT, phba->HAregaddr);
1685 readl(phba->HAregaddr); /* flush */
2e0fef85 1686 spin_unlock_irq(&phba->hbalock);
dea3101e 1687 lpfc_linkdown(phba);
2e0fef85 1688 phba->link_state = LPFC_HBA_ERROR;
dea3101e 1689
09372820
JS		 1690 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1691 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
dea3101e 1692
1693 return;
1694}
1695
e59058c4 1696/**
3621a710 1697 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
e59058c4
JS		 1698 * @phba: pointer to lpfc hba data structure.
1699 * @vpd: pointer to the vital product data.
1700 * @len: length of the vital product data in bytes.
1701 *
1702 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1703 * an array of characters. In this routine, the ModelName, ProgramType, and
1704 * ModelDesc, etc. fields of the phba data structure will be populated.
1705 *
1706 * Return codes
1707 * 0 - pointer to the VPD passed in is NULL
1708 * 1 - success
1709 **/
3772a991 1710int
2e0fef85 1711lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
dea3101e 1712{
1713 uint8_t lenlo, lenhi;
07da60c1 1714 int Length;
dea3101e 1715 int i, j;
1716 int finished = 0;
1717 int index = 0;
1718
1719 if (!vpd)
1720 return 0;
1721
1722 /* Vital Product */
ed957684 1723 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011 1724 "0455 Vital Product Data: x%x x%x x%x x%x\n",
dea3101e 1725 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1726 (uint32_t) vpd[3]);
74b72a59 1727 while (!finished && (index < (len - 4))) {
dea3101e 1728 switch (vpd[index]) {
1729 case 0x82:
74b72a59 1730 case 0x91:
dea3101e 1731 index += 1;
1732 lenlo = vpd[index];
1733 index += 1;
1734 lenhi = vpd[index];
1735 index += 1;
1736 i = ((((unsigned short)lenhi) << 8) + lenlo);
1737 index += i;
1738 break;
1739 case 0x90:
1740 index += 1;
1741 lenlo = vpd[index];
1742 index += 1;
1743 lenhi = vpd[index];
1744 index += 1;
1745 Length = ((((unsigned short)lenhi) << 8) + lenlo);
74b72a59
JW		 1746 if (Length > len - index)
1747 Length = len - index;
dea3101e 1748 while (Length > 0) {
1749 /* Look for Serial Number */
1750 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1751 index += 2;
1752 i = vpd[index];
1753 index += 1;
1754 j = 0;
1755 Length -= (3+i);
1756 while(i--) {
1757 phba->SerialNumber[j++] = vpd[index++];
1758 if (j == 31)
1759 break;
1760 }
1761 phba->SerialNumber[j] = 0;
1762 continue;
1763 }
1764 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1765 phba->vpd_flag |= VPD_MODEL_DESC;
1766 index += 2;
1767 i = vpd[index];
1768 index += 1;
1769 j = 0;
1770 Length -= (3+i);
1771 while(i--) {
1772 phba->ModelDesc[j++] = vpd[index++];
1773 if (j == 255)
1774 break;
1775 }
1776 phba->ModelDesc[j] = 0;
1777 continue;
1778 }
1779 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1780 phba->vpd_flag |= VPD_MODEL_NAME;
1781 index += 2;
1782 i = vpd[index];
1783 index += 1;
1784 j = 0;
1785 Length -= (3+i);
1786 while(i--) {
1787 phba->ModelName[j++] = vpd[index++];
1788 if (j == 79)
1789 break;
1790 }
1791 phba->ModelName[j] = 0;
1792 continue;
1793 }
1794 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1795 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1796 index += 2;
1797 i = vpd[index];
1798 index += 1;
1799 j = 0;
1800 Length -= (3+i);
1801 while(i--) {
1802 phba->ProgramType[j++] = vpd[index++];
1803 if (j == 255)
1804 break;
1805 }
1806 phba->ProgramType[j] = 0;
1807 continue;
1808 }
1809 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1810 phba->vpd_flag |= VPD_PORT;
1811 index += 2;
1812 i = vpd[index];
1813 index += 1;
1814 j = 0;
1815 Length -= (3+i);
1816 while(i--) {
cd1c8301
JS		 1817 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1818 (phba->sli4_hba.pport_name_sta ==
1819 LPFC_SLI4_PPNAME_GET)) {
1820 j++;
1821 index++;
1822 } else
1823 phba->Port[j++] = vpd[index++];
1824 if (j == 19)
1825 break;
dea3101e 1826 }
cd1c8301
JS		 1827 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1828 (phba->sli4_hba.pport_name_sta ==
1829 LPFC_SLI4_PPNAME_NON))
1830 phba->Port[j] = 0;
dea3101e 1831 continue;
1832 }
1833 else {
1834 index += 2;
1835 i = vpd[index];
1836 index += 1;
1837 index += i;
1838 Length -= (3 + i);
1839 }
1840 }
1841 finished = 0;
1842 break;
1843 case 0x78:
1844 finished = 1;
1845 break;
1846 default:
1847 index ++;
1848 break;
1849 }
74b72a59 1850 }
dea3101e 1851
1852 return(1);
1853}
1854
e59058c4 1855/**
3621a710 1856 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
e59058c4
JS		 1857 * @phba: pointer to lpfc hba data structure.
1858 * @mdp: pointer to the data structure to hold the derived model name.
1859 * @descp: pointer to the data structure to hold the derived description.
1860 *
1861 * This routine retrieves HBA's description based on its registered PCI device
1862 * ID. The @descp passed into this function points to an array of 256 chars. It
1863 * shall be returned with the model name, maximum speed, and the host bus type.
1864 * The @mdp passed into this function points to an array of 80 chars. When the
1865 * function returns, the @mdp will be filled with the model name.
1866 **/
dea3101e 1867static void
2e0fef85 1868lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
dea3101e 1869{
1870 lpfc_vpd_t *vp;
fefcb2b6 1871 uint16_t dev_id = phba->pcidev->device;
74b72a59 1872 int max_speed;
84774a4d 1873 int GE = 0;
da0436e9 1874 int oneConnect = 0; /* default is not a oneConnect */
74b72a59 1875 struct {
a747c9ce
JS		 1876 char *name;
1877 char *bus;
1878 char *function;
1879 } m = {"<Unknown>", "", ""};
74b72a59
JW		 1880
1881 if (mdp && mdp[0] != '\0'
1882 && descp && descp[0] != '\0')
1883 return;
1884
c0c11512
JS		 1885 if (phba->lmt & LMT_16Gb)
1886 max_speed = 16;
1887 else if (phba->lmt & LMT_10Gb)
74b72a59
JW		 1888 max_speed = 10;
1889 else if (phba->lmt & LMT_8Gb)
1890 max_speed = 8;
1891 else if (phba->lmt & LMT_4Gb)
1892 max_speed = 4;
1893 else if (phba->lmt & LMT_2Gb)
1894 max_speed = 2;
1895 else
1896 max_speed = 1;
dea3101e 1897
1898 vp = &phba->vpd;
dea3101e 1899
e4adb204 1900 switch (dev_id) {
06325e74 1901 case PCI_DEVICE_ID_FIREFLY:
a747c9ce 1902 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
06325e74 1903 break;
dea3101e 1904 case PCI_DEVICE_ID_SUPERFLY:
1905 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
a747c9ce
JS		 1906 m = (typeof(m)){"LP7000", "PCI",
1907 "Fibre Channel Adapter"};
dea3101e 1908 else
a747c9ce
JS		 1909 m = (typeof(m)){"LP7000E", "PCI",
1910 "Fibre Channel Adapter"};
dea3101e 1911 break;
1912 case PCI_DEVICE_ID_DRAGONFLY:
a747c9ce
JS		 1913 m = (typeof(m)){"LP8000", "PCI",
1914 "Fibre Channel Adapter"};
dea3101e 1915 break;
1916 case PCI_DEVICE_ID_CENTAUR:
1917 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
a747c9ce
JS		 1918 m = (typeof(m)){"LP9002", "PCI",
1919 "Fibre Channel Adapter"};
dea3101e 1920 else
a747c9ce
JS		 1921 m = (typeof(m)){"LP9000", "PCI",
1922 "Fibre Channel Adapter"};
dea3101e 1923 break;
1924 case PCI_DEVICE_ID_RFLY:
a747c9ce
JS		 1925 m = (typeof(m)){"LP952", "PCI",
1926 "Fibre Channel Adapter"};
dea3101e 1927 break;
1928 case PCI_DEVICE_ID_PEGASUS:
a747c9ce
JS		 1929 m = (typeof(m)){"LP9802", "PCI-X",
1930 "Fibre Channel Adapter"};
dea3101e 1931 break;
1932 case PCI_DEVICE_ID_THOR:
a747c9ce
JS		 1933 m = (typeof(m)){"LP10000", "PCI-X",
1934 "Fibre Channel Adapter"};
dea3101e 1935 break;
1936 case PCI_DEVICE_ID_VIPER:
a747c9ce
JS		 1937 m = (typeof(m)){"LPX1000", "PCI-X",
1938 "Fibre Channel Adapter"};
dea3101e 1939 break;
1940 case PCI_DEVICE_ID_PFLY:
a747c9ce
JS		 1941 m = (typeof(m)){"LP982", "PCI-X",
1942 "Fibre Channel Adapter"};
dea3101e 1943 break;
1944 case PCI_DEVICE_ID_TFLY:
a747c9ce
JS		 1945 m = (typeof(m)){"LP1050", "PCI-X",
1946 "Fibre Channel Adapter"};
dea3101e 1947 break;
1948 case PCI_DEVICE_ID_HELIOS:
a747c9ce
JS		 1949 m = (typeof(m)){"LP11000", "PCI-X2",
1950 "Fibre Channel Adapter"};
dea3101e 1951 break;
e4adb204 1952 case PCI_DEVICE_ID_HELIOS_SCSP:
a747c9ce
JS		 1953 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1954 "Fibre Channel Adapter"};
e4adb204
JSEC		 1955 break;
1956 case PCI_DEVICE_ID_HELIOS_DCSP:
a747c9ce
JS		 1957 m = (typeof(m)){"LP11002-SP", "PCI-X2",
1958 "Fibre Channel Adapter"};
e4adb204
JSEC		 1959 break;
1960 case PCI_DEVICE_ID_NEPTUNE:
a747c9ce 1961 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 1962 break;
1963 case PCI_DEVICE_ID_NEPTUNE_SCSP:
a747c9ce 1964 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 1965 break;
1966 case PCI_DEVICE_ID_NEPTUNE_DCSP:
a747c9ce 1967 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
e4adb204 1968 break;
dea3101e 1969 case PCI_DEVICE_ID_BMID:
a747c9ce 1970 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
dea3101e 1971 break;
1972 case PCI_DEVICE_ID_BSMB:
a747c9ce 1973 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
dea3101e 1974 break;
1975 case PCI_DEVICE_ID_ZEPHYR:
a747c9ce 1976 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
dea3101e 1977 break;
e4adb204 1978 case PCI_DEVICE_ID_ZEPHYR_SCSP:
a747c9ce 1979 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 1980 break;
1981 case PCI_DEVICE_ID_ZEPHYR_DCSP:
a747c9ce 1982 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
a257bf90 1983 GE = 1;
e4adb204 1984 break;
dea3101e 1985 case PCI_DEVICE_ID_ZMID:
a747c9ce 1986 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
dea3101e 1987 break;
1988 case PCI_DEVICE_ID_ZSMB:
a747c9ce 1989 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
dea3101e 1990 break;
1991 case PCI_DEVICE_ID_LP101:
a747c9ce 1992 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
dea3101e 1993 break;
1994 case PCI_DEVICE_ID_LP10000S:
a747c9ce 1995 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
06325e74 1996 break;
e4adb204 1997 case PCI_DEVICE_ID_LP11000S:
a747c9ce 1998 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
18a3b596 1999 break;
e4adb204 2000 case PCI_DEVICE_ID_LPE11000S:
a747c9ce 2001 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
5cc36b3c 2002 break;
b87eab38 2003 case PCI_DEVICE_ID_SAT:
a747c9ce 2004 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 2005 break;
2006 case PCI_DEVICE_ID_SAT_MID:
a747c9ce 2007 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 2008 break;
2009 case PCI_DEVICE_ID_SAT_SMB:
a747c9ce 2010 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 2011 break;
2012 case PCI_DEVICE_ID_SAT_DCSP:
a747c9ce 2013 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 2014 break;
2015 case PCI_DEVICE_ID_SAT_SCSP:
a747c9ce 2016 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 2017 break;
2018 case PCI_DEVICE_ID_SAT_S:
a747c9ce 2019 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
b87eab38 2020 break;
84774a4d 2021 case PCI_DEVICE_ID_HORNET:
a747c9ce 2022 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
84774a4d
JS		 2023 GE = 1;
2024 break;
2025 case PCI_DEVICE_ID_PROTEUS_VF:
a747c9ce
JS		 2026 m = (typeof(m)){"LPev12000", "PCIe IOV",
2027 "Fibre Channel Adapter"};
84774a4d
JS		 2028 break;
2029 case PCI_DEVICE_ID_PROTEUS_PF:
a747c9ce
JS		 2030 m = (typeof(m)){"LPev12000", "PCIe IOV",
2031 "Fibre Channel Adapter"};
84774a4d
JS		 2032 break;
2033 case PCI_DEVICE_ID_PROTEUS_S:
a747c9ce
JS		 2034 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2035 "Fibre Channel Adapter"};
84774a4d 2036 break;
da0436e9
JS		 2037 case PCI_DEVICE_ID_TIGERSHARK:
2038 oneConnect = 1;
a747c9ce 2039 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
da0436e9 2040 break;
a747c9ce 2041 case PCI_DEVICE_ID_TOMCAT:
6669f9bb 2042 oneConnect = 1;
a747c9ce
JS		 2043 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2044 break;
2045 case PCI_DEVICE_ID_FALCON:
2046 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2047 "EmulexSecure Fibre"};
6669f9bb 2048 break;
98fc5dd9
JS		 2049 case PCI_DEVICE_ID_BALIUS:
2050 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2051 "Fibre Channel Adapter"};
2052 break;
085c647c 2053 case PCI_DEVICE_ID_LANCER_FC:
c0c11512
JS		 2054 case PCI_DEVICE_ID_LANCER_FC_VF:
2055 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
085c647c
JS		 2056 break;
2057 case PCI_DEVICE_ID_LANCER_FCOE:
c0c11512 2058 case PCI_DEVICE_ID_LANCER_FCOE_VF:
085c647c 2059 oneConnect = 1;
079b5c91 2060 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
085c647c 2061 break;
f8cafd38
JS		 2062 case PCI_DEVICE_ID_SKYHAWK:
2063 case PCI_DEVICE_ID_SKYHAWK_VF:
2064 oneConnect = 1;
2065 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2066 break;
5cc36b3c 2067 default:
a747c9ce 2068 m = (typeof(m)){"Unknown", "", ""};
e4adb204 2069 break;
dea3101e 2070 }
74b72a59
JW		 2071
2072 if (mdp && mdp[0] == '\0')
2073 snprintf(mdp, 79,"%s", m.name);
c0c11512
JS		 2074 /*
2075 * oneConnect hba requires special processing, they are all initiators
da0436e9
JS		 2076 * and we put the port number on the end
2077 */
2078 if (descp && descp[0] == '\0') {
2079 if (oneConnect)
2080 snprintf(descp, 255,
a747c9ce
JS		 2081 "Emulex OneConnect %s, %s Initiator, Port %s",
2082 m.name, m.function,
da0436e9
JS		 2083 phba->Port);
2084 else
2085 snprintf(descp, 255,
2086 "Emulex %s %d%s %s %s",
a747c9ce
JS		 2087 m.name, max_speed, (GE) ? "GE" : "Gb",
2088 m.bus, m.function);
da0436e9 2089 }
dea3101e 2090}
2091
e59058c4 2092/**
3621a710 2093 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
e59058c4
JS		 2094 * @phba: pointer to lpfc hba data structure.
2095 * @pring: pointer to a IOCB ring.
2096 * @cnt: the number of IOCBs to be posted to the IOCB ring.
2097 *
2098 * This routine posts a given number of IOCBs with the associated DMA buffer
2099 * descriptors specified by the cnt argument to the given IOCB ring.
2100 *
2101 * Return codes
2102 * The number of IOCBs NOT able to be posted to the IOCB ring.
2103 **/
dea3101e 2104int
495a714c 2105lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
dea3101e 2106{
2107 IOCB_t *icmd;
0bd4ca25 2108 struct lpfc_iocbq *iocb;
dea3101e 2109 struct lpfc_dmabuf *mp1, *mp2;
2110
2111 cnt += pring->missbufcnt;
2112
2113 /* While there are buffers to post */
2114 while (cnt > 0) {
2115 /* Allocate buffer for command iocb */
0bd4ca25 2116 iocb = lpfc_sli_get_iocbq(phba);
dea3101e 2117 if (iocb == NULL) {
2118 pring->missbufcnt = cnt;
2119 return cnt;
2120 }
dea3101e 2121 icmd = &iocb->iocb;
2122
2123 /* 2 buffers can be posted per command */
2124 /* Allocate buffer to post */
2125 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2126 if (mp1)
98c9ea5c
JS		 2127 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2128 if (!mp1 || !mp1->virt) {
c9475cb0 2129 kfree(mp1);
604a3e30 2130 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2131 pring->missbufcnt = cnt;
2132 return cnt;
2133 }
2134
2135 INIT_LIST_HEAD(&mp1->list);
2136 /* Allocate buffer to post */
2137 if (cnt > 1) {
2138 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2139 if (mp2)
2140 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2141 &mp2->phys);
98c9ea5c 2142 if (!mp2 || !mp2->virt) {
c9475cb0 2143 kfree(mp2);
dea3101e 2144 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2145 kfree(mp1);
604a3e30 2146 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2147 pring->missbufcnt = cnt;
2148 return cnt;
2149 }
2150
2151 INIT_LIST_HEAD(&mp2->list);
2152 } else {
2153 mp2 = NULL;
2154 }
2155
2156 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2157 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2158 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2159 icmd->ulpBdeCount = 1;
2160 cnt--;
2161 if (mp2) {
2162 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2163 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2164 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2165 cnt--;
2166 icmd->ulpBdeCount = 2;
2167 }
2168
2169 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2170 icmd->ulpLe = 1;
2171
3772a991
JS		 2172 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2173 IOCB_ERROR) {
dea3101e 2174 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2175 kfree(mp1);
2176 cnt++;
2177 if (mp2) {
2178 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2179 kfree(mp2);
2180 cnt++;
2181 }
604a3e30 2182 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2183 pring->missbufcnt = cnt;
dea3101e 2184 return cnt;
2185 }
dea3101e 2186 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
92d7f7b0 2187 if (mp2)
dea3101e 2188 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
dea3101e 2189 }
2190 pring->missbufcnt = 0;
2191 return 0;
2192}
2193
e59058c4 2194/**
3621a710 2195 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
e59058c4
JS		 2196 * @phba: pointer to lpfc hba data structure.
2197 *
2198 * This routine posts initial receive IOCB buffers to the ELS ring. The
2199 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2200 * set to 64 IOCBs.
2201 *
2202 * Return codes
2203 * 0 - success (currently always success)
2204 **/
dea3101e 2205static int
2e0fef85 2206lpfc_post_rcv_buf(struct lpfc_hba *phba)
dea3101e 2207{
2208 struct lpfc_sli *psli = &phba->sli;
2209
2210 /* Ring 0, ELS / CT buffers */
495a714c 2211 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
dea3101e 2212 /* Ring 2 - FCP no buffers needed */
2213
2214 return 0;
2215}
2216
2217#define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2218
e59058c4 2219/**
3621a710 2220 * lpfc_sha_init - Set up initial array of hash table entries
e59058c4
JS		 2221 * @HashResultPointer: pointer to an array as hash table.
2222 *
2223 * This routine sets up the initial values to the array of hash table entries
2224 * for the LC HBAs.
2225 **/
dea3101e 2226static void
2227lpfc_sha_init(uint32_t * HashResultPointer)
2228{
2229 HashResultPointer[0] = 0x67452301;
2230 HashResultPointer[1] = 0xEFCDAB89;
2231 HashResultPointer[2] = 0x98BADCFE;
2232 HashResultPointer[3] = 0x10325476;
2233 HashResultPointer[4] = 0xC3D2E1F0;
2234}
2235
e59058c4 2236/**
3621a710 2237 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
e59058c4
JS		 2238 * @HashResultPointer: pointer to an initial/result hash table.
2239 * @HashWorkingPointer: pointer to an working hash table.
2240 *
2241 * This routine iterates an initial hash table pointed by @HashResultPointer
2242 * with the values from the working hash table pointeed by @HashWorkingPointer.
2243 * The results are putting back to the initial hash table, returned through
2244 * the @HashResultPointer as the result hash table.
2245 **/
dea3101e 2246static void
2247lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2248{
2249 int t;
2250 uint32_t TEMP;
2251 uint32_t A, B, C, D, E;
2252 t = 16;
2253 do {
2254 HashWorkingPointer[t] =
2255 S(1,
2256 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2257 8] ^
2258 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2259 } while (++t <= 79);
2260 t = 0;
2261 A = HashResultPointer[0];
2262 B = HashResultPointer[1];
2263 C = HashResultPointer[2];
2264 D = HashResultPointer[3];
2265 E = HashResultPointer[4];
2266
2267 do {
2268 if (t < 20) {
2269 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2270 } else if (t < 40) {
2271 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2272 } else if (t < 60) {
2273 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2274 } else {
2275 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2276 }
2277 TEMP += S(5, A) + E + HashWorkingPointer[t];
2278 E = D;
2279 D = C;
2280 C = S(30, B);
2281 B = A;
2282 A = TEMP;
2283 } while (++t <= 79);
2284
2285 HashResultPointer[0] += A;
2286 HashResultPointer[1] += B;
2287 HashResultPointer[2] += C;
2288 HashResultPointer[3] += D;
2289 HashResultPointer[4] += E;
2290
2291}
2292
e59058c4 2293/**
3621a710 2294 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
e59058c4
JS		 2295 * @RandomChallenge: pointer to the entry of host challenge random number array.
2296 * @HashWorking: pointer to the entry of the working hash array.
2297 *
2298 * This routine calculates the working hash array referred by @HashWorking
2299 * from the challenge random numbers associated with the host, referred by
2300 * @RandomChallenge. The result is put into the entry of the working hash
2301 * array and returned by reference through @HashWorking.
2302 **/
dea3101e 2303static void
2304lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2305{
2306 *HashWorking = (*RandomChallenge ^ *HashWorking);
2307}
2308
e59058c4 2309/**
3621a710 2310 * lpfc_hba_init - Perform special handling for LC HBA initialization
e59058c4
JS		 2311 * @phba: pointer to lpfc hba data structure.
2312 * @hbainit: pointer to an array of unsigned 32-bit integers.
2313 *
2314 * This routine performs the special handling for LC HBA initialization.
2315 **/
dea3101e 2316void
2317lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2318{
2319 int t;
2320 uint32_t *HashWorking;
2e0fef85 2321 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
dea3101e 2322
bbfbbbc1 2323 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
dea3101e 2324 if (!HashWorking)
2325 return;
2326
dea3101e 2327 HashWorking[0] = HashWorking[78] = *pwwnn++;
2328 HashWorking[1] = HashWorking[79] = *pwwnn;
2329
2330 for (t = 0; t < 7; t++)
2331 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2332
2333 lpfc_sha_init(hbainit);
2334 lpfc_sha_iterate(hbainit, HashWorking);
2335 kfree(HashWorking);
2336}
2337
e59058c4 2338/**
3621a710 2339 * lpfc_cleanup - Performs vport cleanups before deleting a vport
e59058c4
JS		 2340 * @vport: pointer to a virtual N_Port data structure.
2341 *
2342 * This routine performs the necessary cleanups before deleting the @vport.
2343 * It invokes the discovery state machine to perform necessary state
2344 * transitions and to release the ndlps associated with the @vport. Note,
2345 * the physical port is treated as @vport 0.
2346 **/
87af33fe 2347void
2e0fef85 2348lpfc_cleanup(struct lpfc_vport *vport)
dea3101e 2349{
87af33fe 2350 struct lpfc_hba *phba = vport->phba;
dea3101e 2351 struct lpfc_nodelist *ndlp, *next_ndlp;
a8adb832 2352 int i = 0;
dea3101e 2353
87af33fe
JS		 2354 if (phba->link_state > LPFC_LINK_DOWN)
2355 lpfc_port_link_failure(vport);
2356
2357 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
e47c9093
JS		 2358 if (!NLP_CHK_NODE_ACT(ndlp)) {
2359 ndlp = lpfc_enable_node(vport, ndlp,
2360 NLP_STE_UNUSED_NODE);
2361 if (!ndlp)
2362 continue;
2363 spin_lock_irq(&phba->ndlp_lock);
2364 NLP_SET_FREE_REQ(ndlp);
2365 spin_unlock_irq(&phba->ndlp_lock);
2366 /* Trigger the release of the ndlp memory */
2367 lpfc_nlp_put(ndlp);
2368 continue;
2369 }
2370 spin_lock_irq(&phba->ndlp_lock);
2371 if (NLP_CHK_FREE_REQ(ndlp)) {
2372 /* The ndlp should not be in memory free mode already */
2373 spin_unlock_irq(&phba->ndlp_lock);
2374 continue;
2375 } else
2376 /* Indicate request for freeing ndlp memory */
2377 NLP_SET_FREE_REQ(ndlp);
2378 spin_unlock_irq(&phba->ndlp_lock);
2379
58da1ffb
JS		 2380 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2381 ndlp->nlp_DID == Fabric_DID) {
2382 /* Just free up ndlp with Fabric_DID for vports */
2383 lpfc_nlp_put(ndlp);
2384 continue;
2385 }
2386
eff4a01b
JS		 2387 /* take care of nodes in unused state before the state
2388 * machine taking action.
2389 */
2390 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2391 lpfc_nlp_put(ndlp);
2392 continue;
2393 }
2394
87af33fe
JS		 2395 if (ndlp->nlp_type & NLP_FABRIC)
2396 lpfc_disc_state_machine(vport, ndlp, NULL,
2397 NLP_EVT_DEVICE_RECOVERY);
e47c9093 2398
87af33fe
JS		 2399 lpfc_disc_state_machine(vport, ndlp, NULL,
2400 NLP_EVT_DEVICE_RM);
2401 }
2402
a8adb832
JS		 2403 /* At this point, ALL ndlp's should be gone
2404 * because of the previous NLP_EVT_DEVICE_RM.
2405 * Lets wait for this to happen, if needed.
2406 */
87af33fe 2407 while (!list_empty(&vport->fc_nodes)) {
a8adb832 2408 if (i++ > 3000) {
87af33fe 2409 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
a8adb832 2410 "0233 Nodelist not empty\n");
e47c9093
JS		 2411 list_for_each_entry_safe(ndlp, next_ndlp,
2412 &vport->fc_nodes, nlp_listp) {
2413 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2414 LOG_NODE,
d7c255b2 2415 "0282 did:x%x ndlp:x%p "
e47c9093
JS		 2416 "usgmap:x%x refcnt:%d\n",
2417 ndlp->nlp_DID, (void *)ndlp,
2418 ndlp->nlp_usg_map,
2419 atomic_read(
2420 &ndlp->kref.refcount));
2421 }
a8adb832 2422 break;
87af33fe 2423 }
a8adb832
JS		 2424
2425 /* Wait for any activity on ndlps to settle */
2426 msleep(10);
87af33fe 2427 }
1151e3ec 2428 lpfc_cleanup_vports_rrqs(vport, NULL);
dea3101e 2429}
2430
e59058c4 2431/**
3621a710 2432 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
e59058c4
JS		 2433 * @vport: pointer to a virtual N_Port data structure.
2434 *
2435 * This routine stops all the timers associated with a @vport. This function
2436 * is invoked before disabling or deleting a @vport. Note that the physical
2437 * port is treated as @vport 0.
2438 **/
92d7f7b0
JS		 2439void
2440lpfc_stop_vport_timers(struct lpfc_vport *vport)
dea3101e 2441{
92d7f7b0
JS		 2442 del_timer_sync(&vport->els_tmofunc);
2443 del_timer_sync(&vport->fc_fdmitmo);
92494144 2444 del_timer_sync(&vport->delayed_disc_tmo);
92d7f7b0
JS		 2445 lpfc_can_disctmo(vport);
2446 return;
dea3101e 2447}
2448
ecfd03c6
JS		 2449/**
2450 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2451 * @phba: pointer to lpfc hba data structure.
2452 *
2453 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2454 * caller of this routine should already hold the host lock.
2455 **/
2456void
2457__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2458{
5ac6b303
JS		 2459 /* Clear pending FCF rediscovery wait flag */
2460 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2461
ecfd03c6
JS		 2462 /* Now, try to stop the timer */
2463 del_timer(&phba->fcf.redisc_wait);
2464}
2465
2466/**
2467 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2468 * @phba: pointer to lpfc hba data structure.
2469 *
2470 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2471 * checks whether the FCF rediscovery wait timer is pending with the host
2472 * lock held before proceeding with disabling the timer and clearing the
2473 * wait timer pendig flag.
2474 **/
2475void
2476lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2477{
2478 spin_lock_irq(&phba->hbalock);
2479 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2480 /* FCF rediscovery timer already fired or stopped */
2481 spin_unlock_irq(&phba->hbalock);
2482 return;
2483 }
2484 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
5ac6b303
JS		 2485 /* Clear failover in progress flags */
2486 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
ecfd03c6
JS		 2487 spin_unlock_irq(&phba->hbalock);
2488}
2489
e59058c4 2490/**
3772a991 2491 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
e59058c4
JS		 2492 * @phba: pointer to lpfc hba data structure.
2493 *
2494 * This routine stops all the timers associated with a HBA. This function is
2495 * invoked before either putting a HBA offline or unloading the driver.
2496 **/
3772a991
JS		 2497void
2498lpfc_stop_hba_timers(struct lpfc_hba *phba)
dea3101e 2499{
51ef4c26 2500 lpfc_stop_vport_timers(phba->pport);
2e0fef85 2501 del_timer_sync(&phba->sli.mbox_tmo);
92d7f7b0 2502 del_timer_sync(&phba->fabric_block_timer);
9399627f 2503 del_timer_sync(&phba->eratt_poll);
3772a991 2504 del_timer_sync(&phba->hb_tmofunc);
1151e3ec
JS		 2505 if (phba->sli_rev == LPFC_SLI_REV4) {
2506 del_timer_sync(&phba->rrq_tmr);
2507 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2508 }
3772a991
JS		 2509 phba->hb_outstanding = 0;
2510
2511 switch (phba->pci_dev_grp) {
2512 case LPFC_PCI_DEV_LP:
2513 /* Stop any LightPulse device specific driver timers */
2514 del_timer_sync(&phba->fcp_poll_timer);
2515 break;
2516 case LPFC_PCI_DEV_OC:
2517 /* Stop any OneConnect device sepcific driver timers */
ecfd03c6 2518 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3772a991
JS		 2519 break;
2520 default:
2521 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2522 "0297 Invalid device group (x%x)\n",
2523 phba->pci_dev_grp);
2524 break;
2525 }
2e0fef85 2526 return;
dea3101e 2527}
2528
e59058c4 2529/**
3621a710 2530 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
e59058c4
JS		 2531 * @phba: pointer to lpfc hba data structure.
2532 *
2533 * This routine marks a HBA's management interface as blocked. Once the HBA's
2534 * management interface is marked as blocked, all the user space access to
2535 * the HBA, whether they are from sysfs interface or libdfc interface will
2536 * all be blocked. The HBA is set to block the management interface when the
2537 * driver prepares the HBA interface for online or offline.
2538 **/
a6ababd2 2539static void
618a5230 2540lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
a6ababd2
AB		 2541{
2542 unsigned long iflag;
6e7288d9
JS		 2543 uint8_t actcmd = MBX_HEARTBEAT;
2544 unsigned long timeout;
2545
a6ababd2
AB		 2546 spin_lock_irqsave(&phba->hbalock, iflag);
2547 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
618a5230
JS		 2548 spin_unlock_irqrestore(&phba->hbalock, iflag);
2549 if (mbx_action == LPFC_MBX_NO_WAIT)
2550 return;
2551 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2552 spin_lock_irqsave(&phba->hbalock, iflag);
a183a15f 2553 if (phba->sli.mbox_active) {
6e7288d9 2554 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
a183a15f
JS		 2555 /* Determine how long we might wait for the active mailbox
2556 * command to be gracefully completed by firmware.
2557 */
2558 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2559 phba->sli.mbox_active) * 1000) + jiffies;
2560 }
a6ababd2 2561 spin_unlock_irqrestore(&phba->hbalock, iflag);
a183a15f 2562
6e7288d9
JS		 2563 /* Wait for the outstnading mailbox command to complete */
2564 while (phba->sli.mbox_active) {
2565 /* Check active mailbox complete status every 2ms */
2566 msleep(2);
2567 if (time_after(jiffies, timeout)) {
2568 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2569 "2813 Mgmt IO is Blocked %x "
2570 "- mbox cmd %x still active\n",
2571 phba->sli.sli_flag, actcmd);
2572 break;
2573 }
2574 }
a6ababd2
AB		 2575}
2576
6b5151fd
JS		 2577/**
2578 * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2579 * @phba: pointer to lpfc hba data structure.
2580 *
2581 * Allocate RPIs for all active remote nodes. This is needed whenever
2582 * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2583 * is to fixup the temporary rpi assignments.
2584 **/
2585void
2586lpfc_sli4_node_prep(struct lpfc_hba *phba)
2587{
2588 struct lpfc_nodelist *ndlp, *next_ndlp;
2589 struct lpfc_vport **vports;
2590 int i;
2591
2592 if (phba->sli_rev != LPFC_SLI_REV4)
2593 return;
2594
2595 vports = lpfc_create_vport_work_array(phba);
2596 if (vports != NULL) {
2597 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2598 if (vports[i]->load_flag & FC_UNLOADING)
2599 continue;
2600
2601 list_for_each_entry_safe(ndlp, next_ndlp,
2602 &vports[i]->fc_nodes,
2603 nlp_listp) {
2604 if (NLP_CHK_NODE_ACT(ndlp))
2605 ndlp->nlp_rpi =
2606 lpfc_sli4_alloc_rpi(phba);
2607 }
2608 }
2609 }
2610 lpfc_destroy_vport_work_array(phba, vports);
2611}
2612
e59058c4 2613/**
3621a710 2614 * lpfc_online - Initialize and bring a HBA online
e59058c4
JS		 2615 * @phba: pointer to lpfc hba data structure.
2616 *
2617 * This routine initializes the HBA and brings a HBA online. During this
2618 * process, the management interface is blocked to prevent user space access
2619 * to the HBA interfering with the driver initialization.
2620 *
2621 * Return codes
2622 * 0 - successful
2623 * 1 - failed
2624 **/
dea3101e 2625int
2e0fef85 2626lpfc_online(struct lpfc_hba *phba)
dea3101e 2627{
372bd282 2628 struct lpfc_vport *vport;
549e55cd
JS		 2629 struct lpfc_vport **vports;
2630 int i;
2e0fef85 2631
dea3101e 2632 if (!phba)
2633 return 0;
372bd282 2634 vport = phba->pport;
dea3101e 2635
2e0fef85 2636 if (!(vport->fc_flag & FC_OFFLINE_MODE))
dea3101e 2637 return 0;
2638
ed957684 2639 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
e8b62011 2640 "0458 Bring Adapter online\n");
dea3101e 2641
618a5230 2642 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
46fa311e
JS		 2643
2644 if (!lpfc_sli_queue_setup(phba)) {
2645 lpfc_unblock_mgmt_io(phba);
dea3101e 2646 return 1;
46fa311e 2647 }
dea3101e 2648
da0436e9
JS		 2649 if (phba->sli_rev == LPFC_SLI_REV4) {
2650 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2651 lpfc_unblock_mgmt_io(phba);
2652 return 1;
2653 }
2654 } else {
2655 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2656 lpfc_unblock_mgmt_io(phba);
2657 return 1;
2658 }
46fa311e 2659 }
dea3101e 2660
549e55cd
JS		 2661 vports = lpfc_create_vport_work_array(phba);
2662 if (vports != NULL)
da0436e9 2663 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
549e55cd
JS		 2664 struct Scsi_Host *shost;
2665 shost = lpfc_shost_from_vport(vports[i]);
2666 spin_lock_irq(shost->host_lock);
2667 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2668 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2669 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
1c6834a7
JS		 2670 if (phba->sli_rev == LPFC_SLI_REV4)
2671 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
549e55cd
JS		 2672 spin_unlock_irq(shost->host_lock);
2673 }
09372820 2674 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 2675
46fa311e 2676 lpfc_unblock_mgmt_io(phba);
dea3101e 2677 return 0;
2678}
2679
e59058c4 2680/**
3621a710 2681 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
e59058c4
JS		 2682 * @phba: pointer to lpfc hba data structure.
2683 *
2684 * This routine marks a HBA's management interface as not blocked. Once the
2685 * HBA's management interface is marked as not blocked, all the user space
2686 * access to the HBA, whether they are from sysfs interface or libdfc
2687 * interface will be allowed. The HBA is set to block the management interface
2688 * when the driver prepares the HBA interface for online or offline and then
2689 * set to unblock the management interface afterwards.
2690 **/
46fa311e
JS		 2691void
2692lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2693{
2694 unsigned long iflag;
2695
2e0fef85
JS		 2696 spin_lock_irqsave(&phba->hbalock, iflag);
2697 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2698 spin_unlock_irqrestore(&phba->hbalock, iflag);
46fa311e
JS		 2699}
2700
e59058c4 2701/**
3621a710 2702 * lpfc_offline_prep - Prepare a HBA to be brought offline
e59058c4
JS		 2703 * @phba: pointer to lpfc hba data structure.
2704 *
2705 * This routine is invoked to prepare a HBA to be brought offline. It performs
2706 * unregistration login to all the nodes on all vports and flushes the mailbox
2707 * queue to make it ready to be brought offline.
2708 **/
46fa311e 2709void
618a5230 2710lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
46fa311e 2711{
2e0fef85 2712 struct lpfc_vport *vport = phba->pport;
46fa311e 2713 struct lpfc_nodelist *ndlp, *next_ndlp;
87af33fe 2714 struct lpfc_vport **vports;
72100cc4 2715 struct Scsi_Host *shost;
87af33fe 2716 int i;
dea3101e 2717
2e0fef85 2718 if (vport->fc_flag & FC_OFFLINE_MODE)
46fa311e 2719 return;
dea3101e 2720
618a5230 2721 lpfc_block_mgmt_io(phba, mbx_action);
dea3101e 2722
2723 lpfc_linkdown(phba);
2724
87af33fe
JS		 2725 /* Issue an unreg_login to all nodes on all vports */
2726 vports = lpfc_create_vport_work_array(phba);
2727 if (vports != NULL) {
da0436e9 2728 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
a8adb832
JS		 2729 if (vports[i]->load_flag & FC_UNLOADING)
2730 continue;
72100cc4
JS		 2731 shost = lpfc_shost_from_vport(vports[i]);
2732 spin_lock_irq(shost->host_lock);
c868595d 2733 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
695a814e
JS		 2734 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2735 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
72100cc4 2736 spin_unlock_irq(shost->host_lock);
695a814e 2737
87af33fe
JS		 2738 shost = lpfc_shost_from_vport(vports[i]);
2739 list_for_each_entry_safe(ndlp, next_ndlp,
2740 &vports[i]->fc_nodes,
2741 nlp_listp) {
e47c9093
JS		 2742 if (!NLP_CHK_NODE_ACT(ndlp))
2743 continue;
87af33fe
JS		 2744 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2745 continue;
2746 if (ndlp->nlp_type & NLP_FABRIC) {
2747 lpfc_disc_state_machine(vports[i], ndlp,
2748 NULL, NLP_EVT_DEVICE_RECOVERY);
2749 lpfc_disc_state_machine(vports[i], ndlp,
2750 NULL, NLP_EVT_DEVICE_RM);
2751 }
2752 spin_lock_irq(shost->host_lock);
2753 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
401ee0c1 2754 spin_unlock_irq(shost->host_lock);
6b5151fd
JS		 2755 /*
2756 * Whenever an SLI4 port goes offline, free the
401ee0c1
JS		 2757 * RPI. Get a new RPI when the adapter port
2758 * comes back online.
6b5151fd
JS		 2759 */
2760 if (phba->sli_rev == LPFC_SLI_REV4)
2761 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
87af33fe
JS		 2762 lpfc_unreg_rpi(vports[i], ndlp);
2763 }
2764 }
2765 }
09372820 2766 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 2767
618a5230 2768 lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
46fa311e
JS		 2769}
2770
e59058c4 2771/**
3621a710 2772 * lpfc_offline - Bring a HBA offline
e59058c4
JS		 2773 * @phba: pointer to lpfc hba data structure.
2774 *
2775 * This routine actually brings a HBA offline. It stops all the timers
2776 * associated with the HBA, brings down the SLI layer, and eventually
2777 * marks the HBA as in offline state for the upper layer protocol.
2778 **/
46fa311e 2779void
2e0fef85 2780lpfc_offline(struct lpfc_hba *phba)
46fa311e 2781{
549e55cd
JS		 2782 struct Scsi_Host *shost;
2783 struct lpfc_vport **vports;
2784 int i;
46fa311e 2785
549e55cd 2786 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
46fa311e 2787 return;
688a8863 2788
da0436e9
JS		 2789 /* stop port and all timers associated with this hba */
2790 lpfc_stop_port(phba);
51ef4c26
JS		 2791 vports = lpfc_create_vport_work_array(phba);
2792 if (vports != NULL)
da0436e9 2793 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
51ef4c26 2794 lpfc_stop_vport_timers(vports[i]);
09372820 2795 lpfc_destroy_vport_work_array(phba, vports);
92d7f7b0 2796 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
e8b62011 2797 "0460 Bring Adapter offline\n");
dea3101e 2798 /* Bring down the SLI Layer and cleanup. The HBA is offline
2799 now. */
2800 lpfc_sli_hba_down(phba);
92d7f7b0 2801 spin_lock_irq(&phba->hbalock);
7054a606 2802 phba->work_ha = 0;
92d7f7b0 2803 spin_unlock_irq(&phba->hbalock);
549e55cd
JS		 2804 vports = lpfc_create_vport_work_array(phba);
2805 if (vports != NULL)
da0436e9 2806 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
549e55cd 2807 shost = lpfc_shost_from_vport(vports[i]);
549e55cd
JS		 2808 spin_lock_irq(shost->host_lock);
2809 vports[i]->work_port_events = 0;
2810 vports[i]->fc_flag |= FC_OFFLINE_MODE;
2811 spin_unlock_irq(shost->host_lock);
2812 }
09372820 2813 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 2814}
2815
e59058c4 2816/**
3621a710 2817 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
e59058c4
JS		 2818 * @phba: pointer to lpfc hba data structure.
2819 *
2820 * This routine is to free all the SCSI buffers and IOCBs from the driver
2821 * list back to kernel. It is called from lpfc_pci_remove_one to free
2822 * the internal resources before the device is removed from the system.
e59058c4 2823 **/
8a9d2e80 2824static void
2e0fef85 2825lpfc_scsi_free(struct lpfc_hba *phba)
dea3101e 2826{
2827 struct lpfc_scsi_buf *sb, *sb_next;
2828 struct lpfc_iocbq *io, *io_next;
2829
2e0fef85 2830 spin_lock_irq(&phba->hbalock);
dea3101e 2831 /* Release all the lpfc_scsi_bufs maintained by this host. */
1c6f4ef5 2832 spin_lock(&phba->scsi_buf_list_lock);
dea3101e 2833 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2834 list_del(&sb->list);
2835 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
92d7f7b0 2836 sb->dma_handle);
dea3101e 2837 kfree(sb);
2838 phba->total_scsi_bufs--;
2839 }
1c6f4ef5 2840 spin_unlock(&phba->scsi_buf_list_lock);
dea3101e 2841
2842 /* Release all the lpfc_iocbq entries maintained by this host. */
2843 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2844 list_del(&io->list);
2845 kfree(io);
2846 phba->total_iocbq_bufs--;
2847 }
6d368e53 2848
2e0fef85 2849 spin_unlock_irq(&phba->hbalock);
8a9d2e80
JS		 2850}
2851
2852/**
2853 * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
2854 * @phba: pointer to lpfc hba data structure.
2855 *
2856 * This routine first calculates the sizes of the current els and allocated
2857 * scsi sgl lists, and then goes through all sgls to updates the physical
2858 * XRIs assigned due to port function reset. During port initialization, the
2859 * current els and allocated scsi sgl lists are 0s.
2860 *
2861 * Return codes
2862 * 0 - successful (for now, it always returns 0)
2863 **/
2864int
2865lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
2866{
2867 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
2868 struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
2869 uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
2870 LIST_HEAD(els_sgl_list);
2871 LIST_HEAD(scsi_sgl_list);
2872 int rc;
2873
2874 /*
2875 * update on pci function's els xri-sgl list
2876 */
2877 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
2878 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
2879 /* els xri-sgl expanded */
2880 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
2881 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2882 "3157 ELS xri-sgl count increased from "
2883 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2884 els_xri_cnt);
2885 /* allocate the additional els sgls */
2886 for (i = 0; i < xri_cnt; i++) {
2887 sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
2888 GFP_KERNEL);
2889 if (sglq_entry == NULL) {
2890 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2891 "2562 Failure to allocate an "
2892 "ELS sgl entry:%d\n", i);
2893 rc = -ENOMEM;
2894 goto out_free_mem;
2895 }
2896 sglq_entry->buff_type = GEN_BUFF_TYPE;
2897 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
2898 &sglq_entry->phys);
2899 if (sglq_entry->virt == NULL) {
2900 kfree(sglq_entry);
2901 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2902 "2563 Failure to allocate an "
2903 "ELS mbuf:%d\n", i);
2904 rc = -ENOMEM;
2905 goto out_free_mem;
2906 }
2907 sglq_entry->sgl = sglq_entry->virt;
2908 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
2909 sglq_entry->state = SGL_FREED;
2910 list_add_tail(&sglq_entry->list, &els_sgl_list);
2911 }
2912 spin_lock(&phba->hbalock);
2913 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
2914 spin_unlock(&phba->hbalock);
2915 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
2916 /* els xri-sgl shrinked */
2917 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
2918 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2919 "3158 ELS xri-sgl count decreased from "
2920 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2921 els_xri_cnt);
2922 spin_lock_irq(&phba->hbalock);
2923 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
2924 spin_unlock_irq(&phba->hbalock);
2925 /* release extra els sgls from list */
2926 for (i = 0; i < xri_cnt; i++) {
2927 list_remove_head(&els_sgl_list,
2928 sglq_entry, struct lpfc_sglq, list);
2929 if (sglq_entry) {
2930 lpfc_mbuf_free(phba, sglq_entry->virt,
2931 sglq_entry->phys);
2932 kfree(sglq_entry);
2933 }
2934 }
2935 spin_lock_irq(&phba->hbalock);
2936 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
2937 spin_unlock_irq(&phba->hbalock);
2938 } else
2939 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2940 "3163 ELS xri-sgl count unchanged: %d\n",
2941 els_xri_cnt);
2942 phba->sli4_hba.els_xri_cnt = els_xri_cnt;
2943
2944 /* update xris to els sgls on the list */
2945 sglq_entry = NULL;
2946 sglq_entry_next = NULL;
2947 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
2948 &phba->sli4_hba.lpfc_sgl_list, list) {
2949 lxri = lpfc_sli4_next_xritag(phba);
2950 if (lxri == NO_XRI) {
2951 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2952 "2400 Failed to allocate xri for "
2953 "ELS sgl\n");
2954 rc = -ENOMEM;
2955 goto out_free_mem;
2956 }
2957 sglq_entry->sli4_lxritag = lxri;
2958 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
2959 }
2960
2961 /*
2962 * update on pci function's allocated scsi xri-sgl list
2963 */
2964 phba->total_scsi_bufs = 0;
2965
2966 /* maximum number of xris available for scsi buffers */
2967 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
2968 els_xri_cnt;
2969
2970 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2971 "2401 Current allocated SCSI xri-sgl count:%d, "
2972 "maximum SCSI xri count:%d\n",
2973 phba->sli4_hba.scsi_xri_cnt,
2974 phba->sli4_hba.scsi_xri_max);
2975
2976 spin_lock_irq(&phba->scsi_buf_list_lock);
2977 list_splice_init(&phba->lpfc_scsi_buf_list, &scsi_sgl_list);
2978 spin_unlock_irq(&phba->scsi_buf_list_lock);
2979
2980 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
2981 /* max scsi xri shrinked below the allocated scsi buffers */
2982 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
2983 phba->sli4_hba.scsi_xri_max;
2984 /* release the extra allocated scsi buffers */
2985 for (i = 0; i < scsi_xri_cnt; i++) {
2986 list_remove_head(&scsi_sgl_list, psb,
2987 struct lpfc_scsi_buf, list);
2988 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, psb->data,
2989 psb->dma_handle);
2990 kfree(psb);
2991 }
2992 spin_lock_irq(&phba->scsi_buf_list_lock);
2993 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
2994 spin_unlock_irq(&phba->scsi_buf_list_lock);
2995 }
2996
2997 /* update xris associated to remaining allocated scsi buffers */
2998 psb = NULL;
2999 psb_next = NULL;
3000 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3001 lxri = lpfc_sli4_next_xritag(phba);
3002 if (lxri == NO_XRI) {
3003 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3004 "2560 Failed to allocate xri for "
3005 "scsi buffer\n");
3006 rc = -ENOMEM;
3007 goto out_free_mem;
3008 }
3009 psb->cur_iocbq.sli4_lxritag = lxri;
3010 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3011 }
3012 spin_lock(&phba->scsi_buf_list_lock);
3013 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list);
3014 spin_unlock(&phba->scsi_buf_list_lock);
3015
dea3101e 3016 return 0;
8a9d2e80
JS		 3017
3018out_free_mem:
3019 lpfc_free_els_sgl_list(phba);
3020 lpfc_scsi_free(phba);
3021 return rc;
dea3101e 3022}
3023
e59058c4 3024/**
3621a710 3025 * lpfc_create_port - Create an FC port
e59058c4
JS		 3026 * @phba: pointer to lpfc hba data structure.
3027 * @instance: a unique integer ID to this FC port.
3028 * @dev: pointer to the device data structure.
3029 *
3030 * This routine creates a FC port for the upper layer protocol. The FC port
3031 * can be created on top of either a physical port or a virtual port provided
3032 * by the HBA. This routine also allocates a SCSI host data structure (shost)
3033 * and associates the FC port created before adding the shost into the SCSI
3034 * layer.
3035 *
3036 * Return codes
3037 * @vport - pointer to the virtual N_Port data structure.
3038 * NULL - port create failed.
3039 **/
2e0fef85 3040struct lpfc_vport *
3de2a653 3041lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
47a8617c 3042{
2e0fef85
JS		 3043 struct lpfc_vport *vport;
3044 struct Scsi_Host *shost;
3045 int error = 0;
47a8617c 3046
3de2a653
JS		 3047 if (dev != &phba->pcidev->dev)
3048 shost = scsi_host_alloc(&lpfc_vport_template,
3049 sizeof(struct lpfc_vport));
3050 else
3051 shost = scsi_host_alloc(&lpfc_template,
3052 sizeof(struct lpfc_vport));
2e0fef85
JS		 3053 if (!shost)
3054 goto out;
47a8617c 3055
2e0fef85
JS		 3056 vport = (struct lpfc_vport *) shost->hostdata;
3057 vport->phba = phba;
2e0fef85 3058 vport->load_flag |= FC_LOADING;
92d7f7b0 3059 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
7f5f3d0d 3060 vport->fc_rscn_flush = 0;
47a8617c 3061
3de2a653 3062 lpfc_get_vport_cfgparam(vport);
2e0fef85
JS		 3063 shost->unique_id = instance;
3064 shost->max_id = LPFC_MAX_TARGET;
3de2a653 3065 shost->max_lun = vport->cfg_max_luns;
2e0fef85
JS		 3066 shost->this_id = -1;
3067 shost->max_cmd_len = 16;
da0436e9 3068 if (phba->sli_rev == LPFC_SLI_REV4) {
28baac74 3069 shost->dma_boundary =
cb5172ea 3070 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
da0436e9
JS		 3071 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3072 }
81301a9b 3073
47a8617c 3074 /*
2e0fef85
JS		 3075 * Set initial can_queue value since 0 is no longer supported and
3076 * scsi_add_host will fail. This will be adjusted later based on the
3077 * max xri value determined in hba setup.
47a8617c 3078 */
2e0fef85 3079 shost->can_queue = phba->cfg_hba_queue_depth - 10;
3de2a653 3080 if (dev != &phba->pcidev->dev) {
92d7f7b0
JS		 3081 shost->transportt = lpfc_vport_transport_template;
3082 vport->port_type = LPFC_NPIV_PORT;
3083 } else {
3084 shost->transportt = lpfc_transport_template;
3085 vport->port_type = LPFC_PHYSICAL_PORT;
3086 }
47a8617c 3087
2e0fef85
JS		 3088 /* Initialize all internally managed lists. */
3089 INIT_LIST_HEAD(&vport->fc_nodes);
da0436e9 3090 INIT_LIST_HEAD(&vport->rcv_buffer_list);
2e0fef85 3091 spin_lock_init(&vport->work_port_lock);
47a8617c 3092
2e0fef85
JS		 3093 init_timer(&vport->fc_disctmo);
3094 vport->fc_disctmo.function = lpfc_disc_timeout;
92d7f7b0 3095 vport->fc_disctmo.data = (unsigned long)vport;
47a8617c 3096
2e0fef85
JS		 3097 init_timer(&vport->fc_fdmitmo);
3098 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
92d7f7b0 3099 vport->fc_fdmitmo.data = (unsigned long)vport;
47a8617c 3100
2e0fef85
JS		 3101 init_timer(&vport->els_tmofunc);
3102 vport->els_tmofunc.function = lpfc_els_timeout;
92d7f7b0 3103 vport->els_tmofunc.data = (unsigned long)vport;
92494144
JS		 3104
3105 init_timer(&vport->delayed_disc_tmo);
3106 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3107 vport->delayed_disc_tmo.data = (unsigned long)vport;
3108
d139b9bd 3109 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2e0fef85
JS		 3110 if (error)
3111 goto out_put_shost;
47a8617c 3112
549e55cd 3113 spin_lock_irq(&phba->hbalock);
2e0fef85 3114 list_add_tail(&vport->listentry, &phba->port_list);
549e55cd 3115 spin_unlock_irq(&phba->hbalock);
2e0fef85 3116 return vport;
47a8617c 3117
2e0fef85
JS		 3118out_put_shost:
3119 scsi_host_put(shost);
3120out:
3121 return NULL;
47a8617c
JS		 3122}
3123
e59058c4 3124/**
3621a710 3125 * destroy_port - destroy an FC port
e59058c4
JS		 3126 * @vport: pointer to an lpfc virtual N_Port data structure.
3127 *
3128 * This routine destroys a FC port from the upper layer protocol. All the
3129 * resources associated with the port are released.
3130 **/
2e0fef85
JS		 3131void
3132destroy_port(struct lpfc_vport *vport)
47a8617c 3133{
92d7f7b0
JS		 3134 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3135 struct lpfc_hba *phba = vport->phba;
47a8617c 3136
858c9f6c 3137 lpfc_debugfs_terminate(vport);
92d7f7b0
JS		 3138 fc_remove_host(shost);
3139 scsi_remove_host(shost);
47a8617c 3140
92d7f7b0
JS		 3141 spin_lock_irq(&phba->hbalock);
3142 list_del_init(&vport->listentry);
3143 spin_unlock_irq(&phba->hbalock);
47a8617c 3144
92d7f7b0 3145 lpfc_cleanup(vport);
47a8617c 3146 return;
47a8617c
JS		 3147}
3148
e59058c4 3149/**
3621a710 3150 * lpfc_get_instance - Get a unique integer ID
e59058c4
JS		 3151 *
3152 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3153 * uses the kernel idr facility to perform the task.
3154 *
3155 * Return codes:
3156 * instance - a unique integer ID allocated as the new instance.
3157 * -1 - lpfc get instance failed.
3158 **/
92d7f7b0
JS		 3159int
3160lpfc_get_instance(void)
3161{
3162 int instance = 0;
47a8617c 3163
92d7f7b0
JS		 3164 /* Assign an unused number */
3165 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
3166 return -1;
3167 if (idr_get_new(&lpfc_hba_index, NULL, &instance))
3168 return -1;
3169 return instance;
47a8617c
JS		 3170}
3171
e59058c4 3172/**
3621a710 3173 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
e59058c4
JS		 3174 * @shost: pointer to SCSI host data structure.
3175 * @time: elapsed time of the scan in jiffies.
3176 *
3177 * This routine is called by the SCSI layer with a SCSI host to determine
3178 * whether the scan host is finished.
3179 *
3180 * Note: there is no scan_start function as adapter initialization will have
3181 * asynchronously kicked off the link initialization.
3182 *
3183 * Return codes
3184 * 0 - SCSI host scan is not over yet.
3185 * 1 - SCSI host scan is over.
3186 **/
47a8617c
JS		 3187int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3188{
2e0fef85
JS		 3189 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3190 struct lpfc_hba *phba = vport->phba;
858c9f6c 3191 int stat = 0;
47a8617c 3192
858c9f6c
JS		 3193 spin_lock_irq(shost->host_lock);
3194
51ef4c26 3195 if (vport->load_flag & FC_UNLOADING) {
858c9f6c
JS		 3196 stat = 1;
3197 goto finished;
3198 }
2e0fef85
JS		 3199 if (time >= 30 * HZ) {
3200 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011
JS		 3201 "0461 Scanning longer than 30 "
3202 "seconds. Continuing initialization\n");
858c9f6c 3203 stat = 1;
47a8617c 3204 goto finished;
2e0fef85
JS		 3205 }
3206 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
3207 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011
JS		 3208 "0465 Link down longer than 15 "
3209 "seconds. Continuing initialization\n");
858c9f6c 3210 stat = 1;
47a8617c 3211 goto finished;
2e0fef85 3212 }
47a8617c 3213
2e0fef85 3214 if (vport->port_state != LPFC_VPORT_READY)
858c9f6c 3215 goto finished;
2e0fef85 3216 if (vport->num_disc_nodes || vport->fc_prli_sent)
858c9f6c 3217 goto finished;
2e0fef85 3218 if (vport->fc_map_cnt == 0 && time < 2 * HZ)
858c9f6c 3219 goto finished;
2e0fef85 3220 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
858c9f6c
JS		 3221 goto finished;
3222
3223 stat = 1;
47a8617c
JS		 3224
3225finished:
858c9f6c
JS		 3226 spin_unlock_irq(shost->host_lock);
3227 return stat;
92d7f7b0 3228}
47a8617c 3229
e59058c4 3230/**
3621a710 3231 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
e59058c4
JS		 3232 * @shost: pointer to SCSI host data structure.
3233 *
3234 * This routine initializes a given SCSI host attributes on a FC port. The
3235 * SCSI host can be either on top of a physical port or a virtual port.
3236 **/
92d7f7b0
JS		 3237void lpfc_host_attrib_init(struct Scsi_Host *shost)
3238{
3239 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3240 struct lpfc_hba *phba = vport->phba;
47a8617c 3241 /*
2e0fef85 3242 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
47a8617c
JS		 3243 */
3244
2e0fef85
JS		 3245 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3246 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
47a8617c
JS		 3247 fc_host_supported_classes(shost) = FC_COS_CLASS3;
3248
3249 memset(fc_host_supported_fc4s(shost), 0,
2e0fef85 3250 sizeof(fc_host_supported_fc4s(shost)));
47a8617c
JS		 3251 fc_host_supported_fc4s(shost)[2] = 1;
3252 fc_host_supported_fc4s(shost)[7] = 1;
3253
92d7f7b0
JS		 3254 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3255 sizeof fc_host_symbolic_name(shost));
47a8617c
JS		 3256
3257 fc_host_supported_speeds(shost) = 0;
88a2cfbb
JS		 3258 if (phba->lmt & LMT_16Gb)
3259 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
47a8617c
JS		 3260 if (phba->lmt & LMT_10Gb)
3261 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
a8adb832
JS		 3262 if (phba->lmt & LMT_8Gb)
3263 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
47a8617c
JS		 3264 if (phba->lmt & LMT_4Gb)
3265 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3266 if (phba->lmt & LMT_2Gb)
3267 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3268 if (phba->lmt & LMT_1Gb)
3269 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3270
3271 fc_host_maxframe_size(shost) =
2e0fef85
JS		 3272 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3273 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
47a8617c 3274
0af5d708
MC		 3275 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3276
47a8617c
JS		 3277 /* This value is also unchanging */
3278 memset(fc_host_active_fc4s(shost), 0,
2e0fef85 3279 sizeof(fc_host_active_fc4s(shost)));
47a8617c
JS		 3280 fc_host_active_fc4s(shost)[2] = 1;
3281 fc_host_active_fc4s(shost)[7] = 1;
3282
92d7f7b0 3283 fc_host_max_npiv_vports(shost) = phba->max_vpi;
47a8617c 3284 spin_lock_irq(shost->host_lock);
51ef4c26 3285 vport->load_flag &= ~FC_LOADING;
47a8617c 3286 spin_unlock_irq(shost->host_lock);
47a8617c 3287}
dea3101e 3288
e59058c4 3289/**
da0436e9 3290 * lpfc_stop_port_s3 - Stop SLI3 device port
e59058c4
JS		 3291 * @phba: pointer to lpfc hba data structure.
3292 *
da0436e9
JS		 3293 * This routine is invoked to stop an SLI3 device port, it stops the device
3294 * from generating interrupts and stops the device driver's timers for the
3295 * device.
e59058c4 3296 **/
da0436e9
JS		 3297static void
3298lpfc_stop_port_s3(struct lpfc_hba *phba)
db2378e0 3299{
da0436e9
JS		 3300 /* Clear all interrupt enable conditions */
3301 writel(0, phba->HCregaddr);
3302 readl(phba->HCregaddr); /* flush */
3303 /* Clear all pending interrupts */
3304 writel(0xffffffff, phba->HAregaddr);
3305 readl(phba->HAregaddr); /* flush */
db2378e0 3306
da0436e9
JS		 3307 /* Reset some HBA SLI setup states */
3308 lpfc_stop_hba_timers(phba);
3309 phba->pport->work_port_events = 0;
3310}
db2378e0 3311
da0436e9
JS		 3312/**
3313 * lpfc_stop_port_s4 - Stop SLI4 device port
3314 * @phba: pointer to lpfc hba data structure.
3315 *
3316 * This routine is invoked to stop an SLI4 device port, it stops the device
3317 * from generating interrupts and stops the device driver's timers for the
3318 * device.
3319 **/
3320static void
3321lpfc_stop_port_s4(struct lpfc_hba *phba)
3322{
3323 /* Reset some HBA SLI4 setup states */
3324 lpfc_stop_hba_timers(phba);
3325 phba->pport->work_port_events = 0;
3326 phba->sli4_hba.intr_enable = 0;
da0436e9 3327}
9399627f 3328
da0436e9
JS		 3329/**
3330 * lpfc_stop_port - Wrapper function for stopping hba port
3331 * @phba: Pointer to HBA context object.
3332 *
3333 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3334 * the API jump table function pointer from the lpfc_hba struct.
3335 **/
3336void
3337lpfc_stop_port(struct lpfc_hba *phba)
3338{
3339 phba->lpfc_stop_port(phba);
3340}
db2378e0 3341
ecfd03c6
JS		 3342/**
3343 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3344 * @phba: Pointer to hba for which this call is being executed.
3345 *
3346 * This routine starts the timer waiting for the FCF rediscovery to complete.
3347 **/
3348void
3349lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3350{
3351 unsigned long fcf_redisc_wait_tmo =
3352 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3353 /* Start fcf rediscovery wait period timer */
3354 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3355 spin_lock_irq(&phba->hbalock);
3356 /* Allow action to new fcf asynchronous event */
3357 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3358 /* Mark the FCF rediscovery pending state */
3359 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3360 spin_unlock_irq(&phba->hbalock);
3361}
3362
3363/**
3364 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3365 * @ptr: Map to lpfc_hba data structure pointer.
3366 *
3367 * This routine is invoked when waiting for FCF table rediscover has been
3368 * timed out. If new FCF record(s) has (have) been discovered during the
3369 * wait period, a new FCF event shall be added to the FCOE async event
3370 * list, and then worker thread shall be waked up for processing from the
3371 * worker thread context.
3372 **/
3373void
3374lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3375{
3376 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3377
3378 /* Don't send FCF rediscovery event if timer cancelled */
3379 spin_lock_irq(&phba->hbalock);
3380 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3381 spin_unlock_irq(&phba->hbalock);
3382 return;
3383 }
3384 /* Clear FCF rediscovery timer pending flag */
3385 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3386 /* FCF rediscovery event to worker thread */
3387 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3388 spin_unlock_irq(&phba->hbalock);
0c9ab6f5 3389 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
a93ff37a 3390 "2776 FCF rediscover quiescent timer expired\n");
ecfd03c6
JS		 3391 /* wake up worker thread */
3392 lpfc_worker_wake_up(phba);
3393}
3394
e59058c4 3395/**
da0436e9 3396 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
e59058c4 3397 * @phba: pointer to lpfc hba data structure.
da0436e9 3398 * @acqe_link: pointer to the async link completion queue entry.
e59058c4 3399 *
da0436e9
JS		 3400 * This routine is to parse the SLI4 link-attention link fault code and
3401 * translate it into the base driver's read link attention mailbox command
3402 * status.
3403 *
3404 * Return: Link-attention status in terms of base driver's coding.
e59058c4 3405 **/
da0436e9
JS		 3406static uint16_t
3407lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3408 struct lpfc_acqe_link *acqe_link)
db2378e0 3409{
da0436e9 3410 uint16_t latt_fault;
9399627f 3411
da0436e9
JS		 3412 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3413 case LPFC_ASYNC_LINK_FAULT_NONE:
3414 case LPFC_ASYNC_LINK_FAULT_LOCAL:
3415 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3416 latt_fault = 0;
3417 break;
3418 default:
3419 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3420 "0398 Invalid link fault code: x%x\n",
3421 bf_get(lpfc_acqe_link_fault, acqe_link));
3422 latt_fault = MBXERR_ERROR;
3423 break;
3424 }
3425 return latt_fault;
db2378e0
JS		 3426}
3427
5b75da2f 3428/**
da0436e9 3429 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
5b75da2f 3430 * @phba: pointer to lpfc hba data structure.
da0436e9 3431 * @acqe_link: pointer to the async link completion queue entry.
5b75da2f 3432 *
da0436e9
JS		 3433 * This routine is to parse the SLI4 link attention type and translate it
3434 * into the base driver's link attention type coding.
5b75da2f 3435 *
da0436e9
JS		 3436 * Return: Link attention type in terms of base driver's coding.
3437 **/
3438static uint8_t
3439lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3440 struct lpfc_acqe_link *acqe_link)
5b75da2f 3441{
da0436e9 3442 uint8_t att_type;
5b75da2f 3443
da0436e9
JS		 3444 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3445 case LPFC_ASYNC_LINK_STATUS_DOWN:
3446 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
76a95d75 3447 att_type = LPFC_ATT_LINK_DOWN;
da0436e9
JS		 3448 break;
3449 case LPFC_ASYNC_LINK_STATUS_UP:
3450 /* Ignore physical link up events - wait for logical link up */
76a95d75 3451 att_type = LPFC_ATT_RESERVED;
da0436e9
JS		 3452 break;
3453 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
76a95d75 3454 att_type = LPFC_ATT_LINK_UP;
da0436e9
JS		 3455 break;
3456 default:
3457 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3458 "0399 Invalid link attention type: x%x\n",
3459 bf_get(lpfc_acqe_link_status, acqe_link));
76a95d75 3460 att_type = LPFC_ATT_RESERVED;
da0436e9 3461 break;
5b75da2f 3462 }
da0436e9 3463 return att_type;
5b75da2f
JS		 3464}
3465
3466/**
da0436e9 3467 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
5b75da2f 3468 * @phba: pointer to lpfc hba data structure.
da0436e9 3469 * @acqe_link: pointer to the async link completion queue entry.
5b75da2f 3470 *
da0436e9
JS		 3471 * This routine is to parse the SLI4 link-attention link speed and translate
3472 * it into the base driver's link-attention link speed coding.
3473 *
3474 * Return: Link-attention link speed in terms of base driver's coding.
3475 **/
3476static uint8_t
3477lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3478 struct lpfc_acqe_link *acqe_link)
5b75da2f 3479{
da0436e9
JS		 3480 uint8_t link_speed;
3481
3482 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3483 case LPFC_ASYNC_LINK_SPEED_ZERO:
da0436e9 3484 case LPFC_ASYNC_LINK_SPEED_10MBPS:
da0436e9 3485 case LPFC_ASYNC_LINK_SPEED_100MBPS:
76a95d75 3486 link_speed = LPFC_LINK_SPEED_UNKNOWN;
da0436e9
JS		 3487 break;
3488 case LPFC_ASYNC_LINK_SPEED_1GBPS:
76a95d75 3489 link_speed = LPFC_LINK_SPEED_1GHZ;
da0436e9
JS		 3490 break;
3491 case LPFC_ASYNC_LINK_SPEED_10GBPS:
76a95d75 3492 link_speed = LPFC_LINK_SPEED_10GHZ;
da0436e9
JS		 3493 break;
3494 default:
3495 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3496 "0483 Invalid link-attention link speed: x%x\n",
3497 bf_get(lpfc_acqe_link_speed, acqe_link));
76a95d75 3498 link_speed = LPFC_LINK_SPEED_UNKNOWN;
da0436e9
JS		 3499 break;
3500 }
3501 return link_speed;
3502}
3503
3504/**
70f3c073 3505 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
da0436e9
JS		 3506 * @phba: pointer to lpfc hba data structure.
3507 * @acqe_link: pointer to the async link completion queue entry.
3508 *
70f3c073 3509 * This routine is to handle the SLI4 asynchronous FCoE link event.
da0436e9
JS		 3510 **/
3511static void
3512lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3513 struct lpfc_acqe_link *acqe_link)
3514{
3515 struct lpfc_dmabuf *mp;
3516 LPFC_MBOXQ_t *pmb;
3517 MAILBOX_t *mb;
76a95d75 3518 struct lpfc_mbx_read_top *la;
da0436e9 3519 uint8_t att_type;
76a95d75 3520 int rc;
da0436e9
JS		 3521
3522 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
76a95d75 3523 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
da0436e9 3524 return;
32b9793f 3525 phba->fcoe_eventtag = acqe_link->event_tag;
da0436e9
JS		 3526 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3527 if (!pmb) {
3528 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3529 "0395 The mboxq allocation failed\n");
3530 return;
3531 }
3532 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3533 if (!mp) {
3534 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3535 "0396 The lpfc_dmabuf allocation failed\n");
3536 goto out_free_pmb;
3537 }
3538 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3539 if (!mp->virt) {
3540 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3541 "0397 The mbuf allocation failed\n");
3542 goto out_free_dmabuf;
3543 }
3544
3545 /* Cleanup any outstanding ELS commands */
3546 lpfc_els_flush_all_cmd(phba);
3547
3548 /* Block ELS IOCBs until we have done process link event */
3549 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3550
3551 /* Update link event statistics */
3552 phba->sli.slistat.link_event++;
3553
76a95d75
JS		 3554 /* Create lpfc_handle_latt mailbox command from link ACQE */
3555 lpfc_read_topology(phba, pmb, mp);
3556 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
da0436e9
JS		 3557 pmb->vport = phba->pport;
3558
da0436e9
JS		 3559 /* Keep the link status for extra SLI4 state machine reference */
3560 phba->sli4_hba.link_state.speed =
3561 bf_get(lpfc_acqe_link_speed, acqe_link);
3562 phba->sli4_hba.link_state.duplex =
3563 bf_get(lpfc_acqe_link_duplex, acqe_link);
3564 phba->sli4_hba.link_state.status =
3565 bf_get(lpfc_acqe_link_status, acqe_link);
70f3c073
JS		 3566 phba->sli4_hba.link_state.type =
3567 bf_get(lpfc_acqe_link_type, acqe_link);
3568 phba->sli4_hba.link_state.number =
3569 bf_get(lpfc_acqe_link_number, acqe_link);
da0436e9
JS		 3570 phba->sli4_hba.link_state.fault =
3571 bf_get(lpfc_acqe_link_fault, acqe_link);
65467b6b 3572 phba->sli4_hba.link_state.logical_speed =
70f3c073
JS		 3573 bf_get(lpfc_acqe_logical_link_speed, acqe_link);
3574 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
c31098ce
JS		 3575 "2900 Async FC/FCoE Link event - Speed:%dGBit "
3576 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3577 "Logical speed:%dMbps Fault:%d\n",
70f3c073
JS		 3578 phba->sli4_hba.link_state.speed,
3579 phba->sli4_hba.link_state.topology,
3580 phba->sli4_hba.link_state.status,
3581 phba->sli4_hba.link_state.type,
3582 phba->sli4_hba.link_state.number,
3583 phba->sli4_hba.link_state.logical_speed * 10,
3584 phba->sli4_hba.link_state.fault);
76a95d75
JS		 3585 /*
3586 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3587 * topology info. Note: Optional for non FC-AL ports.
3588 */
3589 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3590 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3591 if (rc == MBX_NOT_FINISHED)
3592 goto out_free_dmabuf;
3593 return;
3594 }
3595 /*
3596 * For FCoE Mode: fill in all the topology information we need and call
3597 * the READ_TOPOLOGY completion routine to continue without actually
3598 * sending the READ_TOPOLOGY mailbox command to the port.
3599 */
3600 /* Parse and translate status field */
3601 mb = &pmb->u.mb;
3602 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3603
3604 /* Parse and translate link attention fields */
3605 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3606 la->eventTag = acqe_link->event_tag;
3607 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3608 bf_set(lpfc_mbx_read_top_link_spd, la,
3609 lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3610
3611 /* Fake the the following irrelvant fields */
3612 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3613 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3614 bf_set(lpfc_mbx_read_top_il, la, 0);
3615 bf_set(lpfc_mbx_read_top_pb, la, 0);
3616 bf_set(lpfc_mbx_read_top_fa, la, 0);
3617 bf_set(lpfc_mbx_read_top_mm, la, 0);
da0436e9
JS		 3618
3619 /* Invoke the lpfc_handle_latt mailbox command callback function */
76a95d75 3620 lpfc_mbx_cmpl_read_topology(phba, pmb);
da0436e9 3621
5b75da2f 3622 return;
da0436e9
JS		 3623
3624out_free_dmabuf:
3625 kfree(mp);
3626out_free_pmb:
3627 mempool_free(pmb, phba->mbox_mem_pool);
3628}
3629
70f3c073
JS		 3630/**
3631 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3632 * @phba: pointer to lpfc hba data structure.
3633 * @acqe_fc: pointer to the async fc completion queue entry.
3634 *
3635 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3636 * that the event was received and then issue a read_topology mailbox command so
3637 * that the rest of the driver will treat it the same as SLI3.
3638 **/
3639static void
3640lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3641{
3642 struct lpfc_dmabuf *mp;
3643 LPFC_MBOXQ_t *pmb;
3644 int rc;
3645
3646 if (bf_get(lpfc_trailer_type, acqe_fc) !=
3647 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3648 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3649 "2895 Non FC link Event detected.(%d)\n",
3650 bf_get(lpfc_trailer_type, acqe_fc));
3651 return;
3652 }
3653 /* Keep the link status for extra SLI4 state machine reference */
3654 phba->sli4_hba.link_state.speed =
3655 bf_get(lpfc_acqe_fc_la_speed, acqe_fc);
3656 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3657 phba->sli4_hba.link_state.topology =
3658 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3659 phba->sli4_hba.link_state.status =
3660 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3661 phba->sli4_hba.link_state.type =
3662 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3663 phba->sli4_hba.link_state.number =
3664 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3665 phba->sli4_hba.link_state.fault =
3666 bf_get(lpfc_acqe_link_fault, acqe_fc);
3667 phba->sli4_hba.link_state.logical_speed =
3668 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
3669 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3670 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3671 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3672 "%dMbps Fault:%d\n",
3673 phba->sli4_hba.link_state.speed,
3674 phba->sli4_hba.link_state.topology,
3675 phba->sli4_hba.link_state.status,
3676 phba->sli4_hba.link_state.type,
3677 phba->sli4_hba.link_state.number,
3678 phba->sli4_hba.link_state.logical_speed * 10,
3679 phba->sli4_hba.link_state.fault);
3680 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3681 if (!pmb) {
3682 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3683 "2897 The mboxq allocation failed\n");
3684 return;
3685 }
3686 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3687 if (!mp) {
3688 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3689 "2898 The lpfc_dmabuf allocation failed\n");
3690 goto out_free_pmb;
3691 }
3692 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3693 if (!mp->virt) {
3694 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3695 "2899 The mbuf allocation failed\n");
3696 goto out_free_dmabuf;
3697 }
3698
3699 /* Cleanup any outstanding ELS commands */
3700 lpfc_els_flush_all_cmd(phba);
3701
3702 /* Block ELS IOCBs until we have done process link event */
3703 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3704
3705 /* Update link event statistics */
3706 phba->sli.slistat.link_event++;
3707
3708 /* Create lpfc_handle_latt mailbox command from link ACQE */
3709 lpfc_read_topology(phba, pmb, mp);
3710 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3711 pmb->vport = phba->pport;
3712
3713 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3714 if (rc == MBX_NOT_FINISHED)
3715 goto out_free_dmabuf;
3716 return;
3717
3718out_free_dmabuf:
3719 kfree(mp);
3720out_free_pmb:
3721 mempool_free(pmb, phba->mbox_mem_pool);
3722}
3723
3724/**
3725 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3726 * @phba: pointer to lpfc hba data structure.
3727 * @acqe_fc: pointer to the async SLI completion queue entry.
3728 *
3729 * This routine is to handle the SLI4 asynchronous SLI events.
3730 **/
3731static void
3732lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3733{
4b8bae08
JS		 3734 char port_name;
3735 char message[80];
3736 uint8_t status;
3737 struct lpfc_acqe_misconfigured_event *misconfigured;
3738
3739 /* special case misconfigured event as it contains data for all ports */
3740 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
3741 LPFC_SLI_INTF_IF_TYPE_2) ||
3742 (bf_get(lpfc_trailer_type, acqe_sli) !=
3743 LPFC_SLI_EVENT_TYPE_MISCONFIGURED)) {
3744 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3745 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3746 "x%08x SLI Event Type:%d\n",
3747 acqe_sli->event_data1, acqe_sli->event_data2,
3748 bf_get(lpfc_trailer_type, acqe_sli));
3749 return;
3750 }
3751
3752 port_name = phba->Port[0];
3753 if (port_name == 0x00)
3754 port_name = '?'; /* get port name is empty */
3755
3756 misconfigured = (struct lpfc_acqe_misconfigured_event *)
3757 &acqe_sli->event_data1;
3758
3759 /* fetch the status for this port */
3760 switch (phba->sli4_hba.lnk_info.lnk_no) {
3761 case LPFC_LINK_NUMBER_0:
3762 status = bf_get(lpfc_sli_misconfigured_port0,
3763 &misconfigured->theEvent);
3764 break;
3765 case LPFC_LINK_NUMBER_1:
3766 status = bf_get(lpfc_sli_misconfigured_port1,
3767 &misconfigured->theEvent);
3768 break;
3769 case LPFC_LINK_NUMBER_2:
3770 status = bf_get(lpfc_sli_misconfigured_port2,
3771 &misconfigured->theEvent);
3772 break;
3773 case LPFC_LINK_NUMBER_3:
3774 status = bf_get(lpfc_sli_misconfigured_port3,
3775 &misconfigured->theEvent);
3776 break;
3777 default:
3778 status = ~LPFC_SLI_EVENT_STATUS_VALID;
3779 break;
3780 }
3781
3782 switch (status) {
3783 case LPFC_SLI_EVENT_STATUS_VALID:
3784 return; /* no message if the sfp is okay */
3785 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
3786 sprintf(message, "Not installed");
3787 break;
3788 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
3789 sprintf(message,
3790 "Optics of two types installed");
3791 break;
3792 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
3793 sprintf(message, "Incompatible optics");
3794 break;
3795 default:
3796 /* firmware is reporting a status we don't know about */
3797 sprintf(message, "Unknown event status x%02x", status);
3798 break;
3799 }
3800
3801 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3802 "3176 Misconfigured Physical Port - "
3803 "Port Name %c %s\n", port_name, message);
70f3c073
JS		 3804}
3805
fc2b989b
JS		 3806/**
3807 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3808 * @vport: pointer to vport data structure.
3809 *
3810 * This routine is to perform Clear Virtual Link (CVL) on a vport in
3811 * response to a CVL event.
3812 *
3813 * Return the pointer to the ndlp with the vport if successful, otherwise
3814 * return NULL.
3815 **/
3816static struct lpfc_nodelist *
3817lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3818{
3819 struct lpfc_nodelist *ndlp;
3820 struct Scsi_Host *shost;
3821 struct lpfc_hba *phba;
3822
3823 if (!vport)
3824 return NULL;
fc2b989b
JS		 3825 phba = vport->phba;
3826 if (!phba)
3827 return NULL;
78730cfe
JS		 3828 ndlp = lpfc_findnode_did(vport, Fabric_DID);
3829 if (!ndlp) {
3830 /* Cannot find existing Fabric ndlp, so allocate a new one */
3831 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3832 if (!ndlp)
3833 return 0;
3834 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3835 /* Set the node type */
3836 ndlp->nlp_type |= NLP_FABRIC;
3837 /* Put ndlp onto node list */
3838 lpfc_enqueue_node(vport, ndlp);
3839 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3840 /* re-setup ndlp without removing from node list */
3841 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3842 if (!ndlp)
3843 return 0;
3844 }
63e801ce
JS		 3845 if ((phba->pport->port_state < LPFC_FLOGI) &&
3846 (phba->pport->port_state != LPFC_VPORT_FAILED))
fc2b989b
JS		 3847 return NULL;
3848 /* If virtual link is not yet instantiated ignore CVL */
63e801ce
JS		 3849 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
3850 && (vport->port_state != LPFC_VPORT_FAILED))
fc2b989b
JS		 3851 return NULL;
3852 shost = lpfc_shost_from_vport(vport);
3853 if (!shost)
3854 return NULL;
3855 lpfc_linkdown_port(vport);
3856 lpfc_cleanup_pending_mbox(vport);
3857 spin_lock_irq(shost->host_lock);
3858 vport->fc_flag |= FC_VPORT_CVL_RCVD;
3859 spin_unlock_irq(shost->host_lock);
3860
3861 return ndlp;
3862}
3863
3864/**
3865 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3866 * @vport: pointer to lpfc hba data structure.
3867 *
3868 * This routine is to perform Clear Virtual Link (CVL) on all vports in
3869 * response to a FCF dead event.
3870 **/
3871static void
3872lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3873{
3874 struct lpfc_vport **vports;
3875 int i;
3876
3877 vports = lpfc_create_vport_work_array(phba);
3878 if (vports)
3879 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3880 lpfc_sli4_perform_vport_cvl(vports[i]);
3881 lpfc_destroy_vport_work_array(phba, vports);
3882}
3883
da0436e9 3884/**
76a95d75 3885 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
da0436e9
JS		 3886 * @phba: pointer to lpfc hba data structure.
3887 * @acqe_link: pointer to the async fcoe completion queue entry.
3888 *
3889 * This routine is to handle the SLI4 asynchronous fcoe event.
3890 **/
3891static void
76a95d75 3892lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
70f3c073 3893 struct lpfc_acqe_fip *acqe_fip)
da0436e9 3894{
70f3c073 3895 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
da0436e9 3896 int rc;
6669f9bb
JS		 3897 struct lpfc_vport *vport;
3898 struct lpfc_nodelist *ndlp;
3899 struct Scsi_Host *shost;
695a814e
JS		 3900 int active_vlink_present;
3901 struct lpfc_vport **vports;
3902 int i;
da0436e9 3903
70f3c073
JS		 3904 phba->fc_eventTag = acqe_fip->event_tag;
3905 phba->fcoe_eventtag = acqe_fip->event_tag;
da0436e9 3906 switch (event_type) {
70f3c073
JS		 3907 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
3908 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
3909 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
999d813f
JS		 3910 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3911 LOG_DISCOVERY,
a93ff37a
JS		 3912 "2546 New FCF event, evt_tag:x%x, "
3913 "index:x%x\n",
70f3c073
JS		 3914 acqe_fip->event_tag,
3915 acqe_fip->index);
999d813f
JS		 3916 else
3917 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3918 LOG_DISCOVERY,
a93ff37a
JS		 3919 "2788 FCF param modified event, "
3920 "evt_tag:x%x, index:x%x\n",
70f3c073
JS		 3921 acqe_fip->event_tag,
3922 acqe_fip->index);
38b92ef8 3923 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
0c9ab6f5
JS		 3924 /*
3925 * During period of FCF discovery, read the FCF
3926 * table record indexed by the event to update
a93ff37a 3927 * FCF roundrobin failover eligible FCF bmask.
0c9ab6f5
JS		 3928 */
3929 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3930 LOG_DISCOVERY,
a93ff37a
JS		 3931 "2779 Read FCF (x%x) for updating "
3932 "roundrobin FCF failover bmask\n",
70f3c073
JS		 3933 acqe_fip->index);
3934 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
0c9ab6f5 3935 }
38b92ef8
JS		 3936
3937 /* If the FCF discovery is in progress, do nothing. */
3804dc84 3938 spin_lock_irq(&phba->hbalock);
a93ff37a 3939 if (phba->hba_flag & FCF_TS_INPROG) {
38b92ef8
JS		 3940 spin_unlock_irq(&phba->hbalock);
3941 break;
3942 }
3943 /* If fast FCF failover rescan event is pending, do nothing */
3944 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3945 spin_unlock_irq(&phba->hbalock);
3946 break;
3947 }
3948
3949 /* If the FCF has been in discovered state, do nothing. */
3804dc84
JS		 3950 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
3951 spin_unlock_irq(&phba->hbalock);
3952 break;
3953 }
3954 spin_unlock_irq(&phba->hbalock);
38b92ef8 3955
0c9ab6f5
JS		 3956 /* Otherwise, scan the entire FCF table and re-discover SAN */
3957 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
a93ff37a
JS		 3958 "2770 Start FCF table scan per async FCF "
3959 "event, evt_tag:x%x, index:x%x\n",
70f3c073 3960 acqe_fip->event_tag, acqe_fip->index);
0c9ab6f5
JS		 3961 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3962 LPFC_FCOE_FCF_GET_FIRST);
da0436e9 3963 if (rc)
0c9ab6f5
JS		 3964 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3965 "2547 Issue FCF scan read FCF mailbox "
a93ff37a 3966 "command failed (x%x)\n", rc);
da0436e9
JS		 3967 break;
3968
70f3c073 3969 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
da0436e9 3970 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
e4e74273 3971 "2548 FCF Table full count 0x%x tag 0x%x\n",
70f3c073
JS		 3972 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
3973 acqe_fip->event_tag);
da0436e9
JS		 3974 break;
3975
70f3c073 3976 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
80c17849 3977 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
0c9ab6f5 3978 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
a93ff37a 3979 "2549 FCF (x%x) disconnected from network, "
70f3c073 3980 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
38b92ef8
JS		 3981 /*
3982 * If we are in the middle of FCF failover process, clear
3983 * the corresponding FCF bit in the roundrobin bitmap.
da0436e9 3984 */
fc2b989b 3985 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3986 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
fc2b989b 3987 spin_unlock_irq(&phba->hbalock);
0c9ab6f5 3988 /* Update FLOGI FCF failover eligible FCF bmask */
70f3c073 3989 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
fc2b989b
JS		 3990 break;
3991 }
38b92ef8
JS		 3992 spin_unlock_irq(&phba->hbalock);
3993
3994 /* If the event is not for currently used fcf do nothing */
70f3c073 3995 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
38b92ef8
JS		 3996 break;
3997
3998 /*
3999 * Otherwise, request the port to rediscover the entire FCF
4000 * table for a fast recovery from case that the current FCF
4001 * is no longer valid as we are not in the middle of FCF
4002 * failover process already.
4003 */
4004 spin_lock_irq(&phba->hbalock);
fc2b989b 4005 /* Mark the fast failover process in progress */
0c9ab6f5 4006 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
fc2b989b 4007 spin_unlock_irq(&phba->hbalock);
38b92ef8 4008
0c9ab6f5
JS		 4009 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4010 "2771 Start FCF fast failover process due to "
4011 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
70f3c073 4012 "\n", acqe_fip->event_tag, acqe_fip->index);
fc2b989b
JS		 4013 rc = lpfc_sli4_redisc_fcf_table(phba);
4014 if (rc) {
0c9ab6f5
JS		 4015 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4016 LOG_DISCOVERY,
4017 "2772 Issue FCF rediscover mabilbox "
4018 "command failed, fail through to FCF "
4019 "dead event\n");
fc2b989b 4020 spin_lock_irq(&phba->hbalock);
0c9ab6f5 4021 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
fc2b989b
JS		 4022 spin_unlock_irq(&phba->hbalock);
4023 /*
4024 * Last resort will fail over by treating this
4025 * as a link down to FCF registration.
4026 */
4027 lpfc_sli4_fcf_dead_failthrough(phba);
38b92ef8
JS		 4028 } else {
4029 /* Reset FCF roundrobin bmask for new discovery */
7d791df7 4030 lpfc_sli4_clear_fcf_rr_bmask(phba);
38b92ef8
JS		 4031 /*
4032 * Handling fast FCF failover to a DEAD FCF event is
4033 * considered equalivant to receiving CVL to all vports.
fc2b989b
JS		 4034 */
4035 lpfc_sli4_perform_all_vport_cvl(phba);
38b92ef8 4036 }
da0436e9 4037 break;
70f3c073 4038 case LPFC_FIP_EVENT_TYPE_CVL:
80c17849 4039 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
0c9ab6f5 4040 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
6669f9bb 4041 "2718 Clear Virtual Link Received for VPI 0x%x"
70f3c073 4042 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
6d368e53 4043
6669f9bb 4044 vport = lpfc_find_vport_by_vpid(phba,
5248a749 4045 acqe_fip->index);
fc2b989b 4046 ndlp = lpfc_sli4_perform_vport_cvl(vport);
6669f9bb
JS		 4047 if (!ndlp)
4048 break;
695a814e
JS		 4049 active_vlink_present = 0;
4050
4051 vports = lpfc_create_vport_work_array(phba);
4052 if (vports) {
4053 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4054 i++) {
4055 if ((!(vports[i]->fc_flag &
4056 FC_VPORT_CVL_RCVD)) &&
4057 (vports[i]->port_state > LPFC_FDISC)) {
4058 active_vlink_present = 1;
4059 break;
4060 }
4061 }
4062 lpfc_destroy_vport_work_array(phba, vports);
4063 }
4064
4065 if (active_vlink_present) {
4066 /*
4067 * If there are other active VLinks present,
4068 * re-instantiate the Vlink using FDISC.
4069 */
6669f9bb 4070 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
fc2b989b 4071 shost = lpfc_shost_from_vport(vport);
6669f9bb
JS		 4072 spin_lock_irq(shost->host_lock);
4073 ndlp->nlp_flag |= NLP_DELAY_TMO;
4074 spin_unlock_irq(shost->host_lock);
695a814e
JS		 4075 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4076 vport->port_state = LPFC_FDISC;
4077 } else {
ecfd03c6
JS		 4078 /*
4079 * Otherwise, we request port to rediscover
4080 * the entire FCF table for a fast recovery
4081 * from possible case that the current FCF
0c9ab6f5
JS		 4082 * is no longer valid if we are not already
4083 * in the FCF failover process.
ecfd03c6 4084 */
fc2b989b 4085 spin_lock_irq(&phba->hbalock);
0c9ab6f5 4086 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
fc2b989b
JS		 4087 spin_unlock_irq(&phba->hbalock);
4088 break;
4089 }
4090 /* Mark the fast failover process in progress */
0c9ab6f5 4091 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
fc2b989b 4092 spin_unlock_irq(&phba->hbalock);
0c9ab6f5
JS		 4093 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4094 LOG_DISCOVERY,
a93ff37a 4095 "2773 Start FCF failover per CVL, "
70f3c073 4096 "evt_tag:x%x\n", acqe_fip->event_tag);
ecfd03c6 4097 rc = lpfc_sli4_redisc_fcf_table(phba);
fc2b989b 4098 if (rc) {
0c9ab6f5
JS		 4099 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4100 LOG_DISCOVERY,
4101 "2774 Issue FCF rediscover "
4102 "mabilbox command failed, "
4103 "through to CVL event\n");
fc2b989b 4104 spin_lock_irq(&phba->hbalock);
0c9ab6f5 4105 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
fc2b989b 4106 spin_unlock_irq(&phba->hbalock);
ecfd03c6
JS		 4107 /*
4108 * Last resort will be re-try on the
4109 * the current registered FCF entry.
4110 */
4111 lpfc_retry_pport_discovery(phba);
38b92ef8
JS		 4112 } else
4113 /*
4114 * Reset FCF roundrobin bmask for new
4115 * discovery.
4116 */
7d791df7 4117 lpfc_sli4_clear_fcf_rr_bmask(phba);
6669f9bb
JS		 4118 }
4119 break;
da0436e9
JS		 4120 default:
4121 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4122 "0288 Unknown FCoE event type 0x%x event tag "
70f3c073 4123 "0x%x\n", event_type, acqe_fip->event_tag);
da0436e9
JS		 4124 break;
4125 }
4126}
4127
4128/**
4129 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4130 * @phba: pointer to lpfc hba data structure.
4131 * @acqe_link: pointer to the async dcbx completion queue entry.
4132 *
4133 * This routine is to handle the SLI4 asynchronous dcbx event.
4134 **/
4135static void
4136lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4137 struct lpfc_acqe_dcbx *acqe_dcbx)
4138{
4d9ab994 4139 phba->fc_eventTag = acqe_dcbx->event_tag;
da0436e9
JS		 4140 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4141 "0290 The SLI4 DCBX asynchronous event is not "
4142 "handled yet\n");
4143}
4144
b19a061a
JS		 4145/**
4146 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4147 * @phba: pointer to lpfc hba data structure.
4148 * @acqe_link: pointer to the async grp5 completion queue entry.
4149 *
4150 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4151 * is an asynchronous notified of a logical link speed change. The Port
4152 * reports the logical link speed in units of 10Mbps.
4153 **/
4154static void
4155lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4156 struct lpfc_acqe_grp5 *acqe_grp5)
4157{
4158 uint16_t prev_ll_spd;
4159
4160 phba->fc_eventTag = acqe_grp5->event_tag;
4161 phba->fcoe_eventtag = acqe_grp5->event_tag;
4162 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4163 phba->sli4_hba.link_state.logical_speed =
4164 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
4165 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4166 "2789 GRP5 Async Event: Updating logical link speed "
4167 "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
4168 (phba->sli4_hba.link_state.logical_speed*10));
4169}
4170
da0436e9
JS		 4171/**
4172 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4173 * @phba: pointer to lpfc hba data structure.
4174 *
4175 * This routine is invoked by the worker thread to process all the pending
4176 * SLI4 asynchronous events.
4177 **/
4178void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4179{
4180 struct lpfc_cq_event *cq_event;
4181
4182 /* First, declare the async event has been handled */
4183 spin_lock_irq(&phba->hbalock);
4184 phba->hba_flag &= ~ASYNC_EVENT;
4185 spin_unlock_irq(&phba->hbalock);
4186 /* Now, handle all the async events */
4187 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4188 /* Get the first event from the head of the event queue */
4189 spin_lock_irq(&phba->hbalock);
4190 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4191 cq_event, struct lpfc_cq_event, list);
4192 spin_unlock_irq(&phba->hbalock);
4193 /* Process the asynchronous event */
4194 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4195 case LPFC_TRAILER_CODE_LINK:
4196 lpfc_sli4_async_link_evt(phba,
4197 &cq_event->cqe.acqe_link);
4198 break;
4199 case LPFC_TRAILER_CODE_FCOE:
70f3c073 4200 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
da0436e9
JS		 4201 break;
4202 case LPFC_TRAILER_CODE_DCBX:
4203 lpfc_sli4_async_dcbx_evt(phba,
4204 &cq_event->cqe.acqe_dcbx);
4205 break;
b19a061a
JS		 4206 case LPFC_TRAILER_CODE_GRP5:
4207 lpfc_sli4_async_grp5_evt(phba,
4208 &cq_event->cqe.acqe_grp5);
4209 break;
70f3c073
JS		 4210 case LPFC_TRAILER_CODE_FC:
4211 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4212 break;
4213 case LPFC_TRAILER_CODE_SLI:
4214 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4215 break;
da0436e9
JS		 4216 default:
4217 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4218 "1804 Invalid asynchrous event code: "
4219 "x%x\n", bf_get(lpfc_trailer_code,
4220 &cq_event->cqe.mcqe_cmpl));
4221 break;
4222 }
4223 /* Free the completion event processed to the free pool */
4224 lpfc_sli4_cq_event_release(phba, cq_event);
4225 }
4226}
4227
ecfd03c6
JS		 4228/**
4229 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4230 * @phba: pointer to lpfc hba data structure.
4231 *
4232 * This routine is invoked by the worker thread to process FCF table
4233 * rediscovery pending completion event.
4234 **/
4235void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4236{
4237 int rc;
4238
4239 spin_lock_irq(&phba->hbalock);
4240 /* Clear FCF rediscovery timeout event */
4241 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4242 /* Clear driver fast failover FCF record flag */
4243 phba->fcf.failover_rec.flag = 0;
4244 /* Set state for FCF fast failover */
4245 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4246 spin_unlock_irq(&phba->hbalock);
4247
4248 /* Scan FCF table from the first entry to re-discover SAN */
0c9ab6f5 4249 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
a93ff37a 4250 "2777 Start post-quiescent FCF table scan\n");
0c9ab6f5 4251 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
ecfd03c6 4252 if (rc)
0c9ab6f5
JS		 4253 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4254 "2747 Issue FCF scan read FCF mailbox "
4255 "command failed 0x%x\n", rc);
ecfd03c6
JS		 4256}
4257
da0436e9
JS		 4258/**
4259 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4260 * @phba: pointer to lpfc hba data structure.
4261 * @dev_grp: The HBA PCI-Device group number.
4262 *
4263 * This routine is invoked to set up the per HBA PCI-Device group function
4264 * API jump table entries.
4265 *
4266 * Return: 0 if success, otherwise -ENODEV
4267 **/
4268int
4269lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4270{
4271 int rc;
4272
4273 /* Set up lpfc PCI-device group */
4274 phba->pci_dev_grp = dev_grp;
4275
4276 /* The LPFC_PCI_DEV_OC uses SLI4 */
4277 if (dev_grp == LPFC_PCI_DEV_OC)
4278 phba->sli_rev = LPFC_SLI_REV4;
4279
4280 /* Set up device INIT API function jump table */
4281 rc = lpfc_init_api_table_setup(phba, dev_grp);
4282 if (rc)
4283 return -ENODEV;
4284 /* Set up SCSI API function jump table */
4285 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4286 if (rc)
4287 return -ENODEV;
4288 /* Set up SLI API function jump table */
4289 rc = lpfc_sli_api_table_setup(phba, dev_grp);
4290 if (rc)
4291 return -ENODEV;
4292 /* Set up MBOX API function jump table */
4293 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4294 if (rc)
4295 return -ENODEV;
4296
4297 return 0;
5b75da2f
JS		 4298}
4299
4300/**
3621a710 4301 * lpfc_log_intr_mode - Log the active interrupt mode
5b75da2f
JS		 4302 * @phba: pointer to lpfc hba data structure.
4303 * @intr_mode: active interrupt mode adopted.
4304 *
4305 * This routine it invoked to log the currently used active interrupt mode
4306 * to the device.
3772a991
JS		 4307 **/
4308static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5b75da2f
JS		 4309{
4310 switch (intr_mode) {
4311 case 0:
4312 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4313 "0470 Enable INTx interrupt mode.\n");
4314 break;
4315 case 1:
4316 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4317 "0481 Enabled MSI interrupt mode.\n");
4318 break;
4319 case 2:
4320 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4321 "0480 Enabled MSI-X interrupt mode.\n");
4322 break;
4323 default:
4324 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4325 "0482 Illegal interrupt mode.\n");
4326 break;
4327 }
4328 return;
4329}
4330
5b75da2f 4331/**
3772a991 4332 * lpfc_enable_pci_dev - Enable a generic PCI device.
5b75da2f
JS		 4333 * @phba: pointer to lpfc hba data structure.
4334 *
3772a991
JS		 4335 * This routine is invoked to enable the PCI device that is common to all
4336 * PCI devices.
5b75da2f
JS		 4337 *
4338 * Return codes
af901ca1 4339 * 0 - successful
3772a991 4340 * other values - error
5b75da2f 4341 **/
3772a991
JS		 4342static int
4343lpfc_enable_pci_dev(struct lpfc_hba *phba)
5b75da2f 4344{
3772a991 4345 struct pci_dev *pdev;
079b5c91 4346 int bars = 0;
5b75da2f 4347
3772a991
JS		 4348 /* Obtain PCI device reference */
4349 if (!phba->pcidev)
4350 goto out_error;
4351 else
4352 pdev = phba->pcidev;
4353 /* Select PCI BARs */
4354 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4355 /* Enable PCI device */
4356 if (pci_enable_device_mem(pdev))
4357 goto out_error;
4358 /* Request PCI resource for the device */
4359 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4360 goto out_disable_device;
4361 /* Set up device as PCI master and save state for EEH */
4362 pci_set_master(pdev);
4363 pci_try_set_mwi(pdev);
4364 pci_save_state(pdev);
5b75da2f 4365
0558056c
JS		 4366 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4367 if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
4368 pdev->needs_freset = 1;
4369
3772a991 4370 return 0;
5b75da2f 4371
3772a991
JS		 4372out_disable_device:
4373 pci_disable_device(pdev);
4374out_error:
079b5c91
JS		 4375 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4376 "1401 Failed to enable pci device, bars:x%x\n", bars);
3772a991 4377 return -ENODEV;
5b75da2f
JS		 4378}
4379
4380/**
3772a991 4381 * lpfc_disable_pci_dev - Disable a generic PCI device.
5b75da2f
JS		 4382 * @phba: pointer to lpfc hba data structure.
4383 *
3772a991
JS		 4384 * This routine is invoked to disable the PCI device that is common to all
4385 * PCI devices.
5b75da2f
JS		 4386 **/
4387static void
3772a991 4388lpfc_disable_pci_dev(struct lpfc_hba *phba)
5b75da2f 4389{
3772a991
JS		 4390 struct pci_dev *pdev;
4391 int bars;
5b75da2f 4392
3772a991
JS		 4393 /* Obtain PCI device reference */
4394 if (!phba->pcidev)
4395 return;
4396 else
4397 pdev = phba->pcidev;
4398 /* Select PCI BARs */
4399 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4400 /* Release PCI resource and disable PCI device */
4401 pci_release_selected_regions(pdev, bars);
4402 pci_disable_device(pdev);
4403 /* Null out PCI private reference to driver */
4404 pci_set_drvdata(pdev, NULL);
5b75da2f
JS		 4405
4406 return;
4407}
4408
e59058c4 4409/**
3772a991
JS		 4410 * lpfc_reset_hba - Reset a hba
4411 * @phba: pointer to lpfc hba data structure.
e59058c4 4412 *
3772a991
JS		 4413 * This routine is invoked to reset a hba device. It brings the HBA
4414 * offline, performs a board restart, and then brings the board back
4415 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4416 * on outstanding mailbox commands.
e59058c4 4417 **/
3772a991
JS		 4418void
4419lpfc_reset_hba(struct lpfc_hba *phba)
dea3101e 4420{
3772a991
JS		 4421 /* If resets are disabled then set error state and return. */
4422 if (!phba->cfg_enable_hba_reset) {
4423 phba->link_state = LPFC_HBA_ERROR;
4424 return;
4425 }
618a5230 4426 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
3772a991
JS		 4427 lpfc_offline(phba);
4428 lpfc_sli_brdrestart(phba);
4429 lpfc_online(phba);
4430 lpfc_unblock_mgmt_io(phba);
4431}
dea3101e 4432
0a96e975
JS		 4433/**
4434 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4435 * @phba: pointer to lpfc hba data structure.
4436 *
4437 * This function enables the PCI SR-IOV virtual functions to a physical
4438 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4439 * enable the number of virtual functions to the physical function. As
4440 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4441 * API call does not considered as an error condition for most of the device.
4442 **/
4443uint16_t
4444lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4445{
4446 struct pci_dev *pdev = phba->pcidev;
4447 uint16_t nr_virtfn;
4448 int pos;
4449
0a96e975
JS		 4450 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4451 if (pos == 0)
4452 return 0;
4453
4454 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4455 return nr_virtfn;
4456}
4457
912e3acd
JS		 4458/**
4459 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4460 * @phba: pointer to lpfc hba data structure.
4461 * @nr_vfn: number of virtual functions to be enabled.
4462 *
4463 * This function enables the PCI SR-IOV virtual functions to a physical
4464 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4465 * enable the number of virtual functions to the physical function. As
4466 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4467 * API call does not considered as an error condition for most of the device.
4468 **/
4469int
4470lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4471{
4472 struct pci_dev *pdev = phba->pcidev;
0a96e975 4473 uint16_t max_nr_vfn;
912e3acd
JS		 4474 int rc;
4475
0a96e975
JS		 4476 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4477 if (nr_vfn > max_nr_vfn) {
4478 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4479 "3057 Requested vfs (%d) greater than "
4480 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4481 return -EINVAL;
4482 }
4483
912e3acd
JS		 4484 rc = pci_enable_sriov(pdev, nr_vfn);
4485 if (rc) {
4486 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4487 "2806 Failed to enable sriov on this device "
4488 "with vfn number nr_vf:%d, rc:%d\n",
4489 nr_vfn, rc);
4490 } else
4491 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4492 "2807 Successful enable sriov on this device "
4493 "with vfn number nr_vf:%d\n", nr_vfn);
4494 return rc;
4495}
4496
3772a991
JS		 4497/**
4498 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4499 * @phba: pointer to lpfc hba data structure.
4500 *
4501 * This routine is invoked to set up the driver internal resources specific to
4502 * support the SLI-3 HBA device it attached to.
4503 *
4504 * Return codes
af901ca1 4505 * 0 - successful
3772a991
JS		 4506 * other values - error
4507 **/
4508static int
4509lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4510{
4511 struct lpfc_sli *psli;
912e3acd 4512 int rc;
dea3101e 4513
2e0fef85 4514 /*
3772a991 4515 * Initialize timers used by driver
2e0fef85 4516 */
dea3101e 4517
3772a991 4518 /* Heartbeat timer */
858c9f6c
JS		 4519 init_timer(&phba->hb_tmofunc);
4520 phba->hb_tmofunc.function = lpfc_hb_timeout;
4521 phba->hb_tmofunc.data = (unsigned long)phba;
4522
dea3101e 4523 psli = &phba->sli;
3772a991 4524 /* MBOX heartbeat timer */
dea3101e 4525 init_timer(&psli->mbox_tmo);
4526 psli->mbox_tmo.function = lpfc_mbox_timeout;
2e0fef85 4527 psli->mbox_tmo.data = (unsigned long) phba;
3772a991 4528 /* FCP polling mode timer */
875fbdfe
JSEC		 4529 init_timer(&phba->fcp_poll_timer);
4530 phba->fcp_poll_timer.function = lpfc_poll_timeout;
2e0fef85 4531 phba->fcp_poll_timer.data = (unsigned long) phba;
3772a991 4532 /* Fabric block timer */
92d7f7b0
JS		 4533 init_timer(&phba->fabric_block_timer);
4534 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4535 phba->fabric_block_timer.data = (unsigned long) phba;
3772a991 4536 /* EA polling mode timer */
9399627f
JS		 4537 init_timer(&phba->eratt_poll);
4538 phba->eratt_poll.function = lpfc_poll_eratt;
4539 phba->eratt_poll.data = (unsigned long) phba;
dea3101e 4540
3772a991
JS		 4541 /* Host attention work mask setup */
4542 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4543 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
dea3101e 4544
3772a991
JS		 4545 /* Get all the module params for configuring this host */
4546 lpfc_get_cfgparam(phba);
49198b37
JS		 4547 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4548 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4549 /* check for menlo minimum sg count */
4550 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4551 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4552 }
4553
2a76a283
JS		 4554 if (!phba->sli.ring)
4555 phba->sli.ring = (struct lpfc_sli_ring *)
4556 kzalloc(LPFC_SLI3_MAX_RING *
4557 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4558 if (!phba->sli.ring)
4559 return -ENOMEM;
4560
dea3101e 4561 /*
3772a991
JS		 4562 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4563 * used to create the sg_dma_buf_pool must be dynamically calculated.
4564 * 2 segments are added since the IOCB needs a command and response bde.
dea3101e 4565 */
3772a991
JS		 4566 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4567 sizeof(struct fcp_rsp) +
4568 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4569
4570 if (phba->cfg_enable_bg) {
4571 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4572 phba->cfg_sg_dma_buf_size +=
4573 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
901a920f 4574 }
dea3101e 4575
3772a991
JS		 4576 /* Also reinitialize the host templates with new values. */
4577 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4578 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
dea3101e 4579
3772a991
JS		 4580 phba->max_vpi = LPFC_MAX_VPI;
4581 /* This will be set to correct value after config_port mbox */
4582 phba->max_vports = 0;
dea3101e 4583
3772a991
JS		 4584 /*
4585 * Initialize the SLI Layer to run with lpfc HBAs.
4586 */
4587 lpfc_sli_setup(phba);
4588 lpfc_sli_queue_setup(phba);
ed957684 4589
3772a991
JS		 4590 /* Allocate device driver memory */
4591 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4592 return -ENOMEM;
51ef4c26 4593
912e3acd
JS		 4594 /*
4595 * Enable sr-iov virtual functions if supported and configured
4596 * through the module parameter.
4597 */
4598 if (phba->cfg_sriov_nr_virtfn > 0) {
4599 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4600 phba->cfg_sriov_nr_virtfn);
4601 if (rc) {
4602 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4603 "2808 Requested number of SR-IOV "
4604 "virtual functions (%d) is not "
4605 "supported\n",
4606 phba->cfg_sriov_nr_virtfn);
4607 phba->cfg_sriov_nr_virtfn = 0;
4608 }
4609 }
4610
3772a991
JS		 4611 return 0;
4612}
ed957684 4613
3772a991
JS		 4614/**
4615 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4616 * @phba: pointer to lpfc hba data structure.
4617 *
4618 * This routine is invoked to unset the driver internal resources set up
4619 * specific for supporting the SLI-3 HBA device it attached to.
4620 **/
4621static void
4622lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4623{
4624 /* Free device driver memory allocated */
4625 lpfc_mem_free_all(phba);
3163f725 4626
3772a991
JS		 4627 return;
4628}
dea3101e 4629
3772a991 4630/**
da0436e9 4631 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3772a991
JS		 4632 * @phba: pointer to lpfc hba data structure.
4633 *
da0436e9
JS		 4634 * This routine is invoked to set up the driver internal resources specific to
4635 * support the SLI-4 HBA device it attached to.
3772a991
JS		 4636 *
4637 * Return codes
af901ca1 4638 * 0 - successful
da0436e9 4639 * other values - error
3772a991
JS		 4640 **/
4641static int
da0436e9 4642lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3772a991 4643{
da0436e9 4644 struct lpfc_sli *psli;
28baac74
JS		 4645 LPFC_MBOXQ_t *mboxq;
4646 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
4647 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4648 struct lpfc_mqe *mqe;
085c647c 4649 int longs, sli_family;
acd6859b 4650 int sges_per_segment;
da0436e9
JS		 4651
4652 /* Before proceed, wait for POST done and device ready */
4653 rc = lpfc_sli4_post_status_check(phba);
4654 if (rc)
4655 return -ENODEV;
4656
3772a991 4657 /*
da0436e9 4658 * Initialize timers used by driver
3772a991 4659 */
3772a991 4660
da0436e9
JS		 4661 /* Heartbeat timer */
4662 init_timer(&phba->hb_tmofunc);
4663 phba->hb_tmofunc.function = lpfc_hb_timeout;
4664 phba->hb_tmofunc.data = (unsigned long)phba;
19ca7609
JS		 4665 init_timer(&phba->rrq_tmr);
4666 phba->rrq_tmr.function = lpfc_rrq_timeout;
4667 phba->rrq_tmr.data = (unsigned long)phba;
3772a991 4668
da0436e9
JS		 4669 psli = &phba->sli;
4670 /* MBOX heartbeat timer */
4671 init_timer(&psli->mbox_tmo);
4672 psli->mbox_tmo.function = lpfc_mbox_timeout;
4673 psli->mbox_tmo.data = (unsigned long) phba;
4674 /* Fabric block timer */
4675 init_timer(&phba->fabric_block_timer);
4676 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4677 phba->fabric_block_timer.data = (unsigned long) phba;
4678 /* EA polling mode timer */
4679 init_timer(&phba->eratt_poll);
4680 phba->eratt_poll.function = lpfc_poll_eratt;
4681 phba->eratt_poll.data = (unsigned long) phba;
ecfd03c6
JS		 4682 /* FCF rediscover timer */
4683 init_timer(&phba->fcf.redisc_wait);
4684 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4685 phba->fcf.redisc_wait.data = (unsigned long)phba;
4686
7ad20aa9
JS		 4687 /*
4688 * Control structure for handling external multi-buffer mailbox
4689 * command pass-through.
4690 */
4691 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
4692 sizeof(struct lpfc_mbox_ext_buf_ctx));
4693 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4694
da0436e9
JS		 4695 /*
4696 * We need to do a READ_CONFIG mailbox command here before
4697 * calling lpfc_get_cfgparam. For VFs this will report the
4698 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4699 * All of the resources allocated
4700 * for this Port are tied to these values.
4701 */
4702 /* Get all the module params for configuring this host */
4703 lpfc_get_cfgparam(phba);
4704 phba->max_vpi = LPFC_MAX_VPI;
4705 /* This will be set to correct value after the read_config mbox */
4706 phba->max_vports = 0;
3772a991 4707
da0436e9
JS		 4708 /* Program the default value of vlan_id and fc_map */
4709 phba->valid_vlan = 0;
4710 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4711 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4712 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
3772a991 4713
acd6859b
JS		 4714 /* With BlockGuard we can have multiple SGEs per Data Segemnt */
4715 sges_per_segment = 1;
4716 if (phba->cfg_enable_bg)
4717 sges_per_segment = 2;
4718
2a76a283
JS		 4719 /*
4720 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
4721 * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
4722 */
4723 if (!phba->sli.ring)
4724 phba->sli.ring = kzalloc(
4725 (LPFC_SLI3_MAX_RING + phba->cfg_fcp_eq_count) *
4726 sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4727 if (!phba->sli.ring)
4728 return -ENOMEM;
da0436e9
JS		 4729 /*
4730 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4731 * used to create the sg_dma_buf_pool must be dynamically calculated.
4732 * 2 segments are added since the IOCB needs a command and response bde.
4733 * To insure that the scsi sgl does not cross a 4k page boundary only
28baac74 4734 * sgl sizes of must be a power of 2.
da0436e9 4735 */
28baac74 4736 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
acd6859b
JS		 4737 (((phba->cfg_sg_seg_cnt * sges_per_segment) + 2) *
4738 sizeof(struct sli4_sge)));
085c647c
JS		 4739
4740 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
4741 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4742 switch (sli_family) {
4743 case LPFC_SLI_INTF_FAMILY_BE2:
4744 case LPFC_SLI_INTF_FAMILY_BE3:
4745 /* There is a single hint for BE - 2 pages per BPL. */
4746 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
4747 LPFC_SLI_INTF_SLI_HINT1_1)
4748 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4749 break;
4750 case LPFC_SLI_INTF_FAMILY_LNCR_A0:
4751 case LPFC_SLI_INTF_FAMILY_LNCR_B0:
4752 default:
4753 break;
4754 }
acd6859b 4755
28baac74
JS		 4756 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4757 dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4758 dma_buf_size = dma_buf_size << 1)
4759 ;
4760 if (dma_buf_size == max_buf_size)
4761 phba->cfg_sg_seg_cnt = (dma_buf_size -
4762 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4763 (2 * sizeof(struct sli4_sge))) /
4764 sizeof(struct sli4_sge);
4765 phba->cfg_sg_dma_buf_size = dma_buf_size;
3772a991 4766
da0436e9
JS		 4767 /* Initialize buffer queue management fields */
4768 hbq_count = lpfc_sli_hbq_count();
4769 for (i = 0; i < hbq_count; ++i)
4770 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4771 INIT_LIST_HEAD(&phba->rb_pend_list);
4772 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4773 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
3772a991 4774
da0436e9
JS		 4775 /*
4776 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4777 */
4778 /* Initialize the Abort scsi buffer list used by driver */
4779 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4780 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4781 /* This abort list used by worker thread */
4782 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
3772a991 4783
da0436e9 4784 /*
6d368e53 4785 * Initialize driver internal slow-path work queues
da0436e9 4786 */
3772a991 4787
da0436e9
JS		 4788 /* Driver internel slow-path CQ Event pool */
4789 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4790 /* Response IOCB work queue list */
45ed1190 4791 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
da0436e9
JS		 4792 /* Asynchronous event CQ Event work queue list */
4793 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4794 /* Fast-path XRI aborted CQ Event work queue list */
4795 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4796 /* Slow-path XRI aborted CQ Event work queue list */
4797 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4798 /* Receive queue CQ Event work queue list */
4799 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4800
6d368e53
JS		 4801 /* Initialize extent block lists. */
4802 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
4803 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
4804 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
4805 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
4806
da0436e9
JS		 4807 /* Initialize the driver internal SLI layer lists. */
4808 lpfc_sli_setup(phba);
4809 lpfc_sli_queue_setup(phba);
3772a991 4810
da0436e9
JS		 4811 /* Allocate device driver memory */
4812 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4813 if (rc)
4814 return -ENOMEM;
4815
2fcee4bf
JS		 4816 /* IF Type 2 ports get initialized now. */
4817 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4818 LPFC_SLI_INTF_IF_TYPE_2) {
4819 rc = lpfc_pci_function_reset(phba);
4820 if (unlikely(rc))
4821 return -ENODEV;
4822 }
4823
da0436e9
JS		 4824 /* Create the bootstrap mailbox command */
4825 rc = lpfc_create_bootstrap_mbox(phba);
4826 if (unlikely(rc))
4827 goto out_free_mem;
4828
4829 /* Set up the host's endian order with the device. */
4830 rc = lpfc_setup_endian_order(phba);
4831 if (unlikely(rc))
4832 goto out_free_bsmbx;
4833
4834 /* Set up the hba's configuration parameters. */
4835 rc = lpfc_sli4_read_config(phba);
4836 if (unlikely(rc))
4837 goto out_free_bsmbx;
4838
2fcee4bf
JS		 4839 /* IF Type 0 ports get initialized now. */
4840 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4841 LPFC_SLI_INTF_IF_TYPE_0) {
4842 rc = lpfc_pci_function_reset(phba);
4843 if (unlikely(rc))
4844 goto out_free_bsmbx;
4845 }
da0436e9 4846
cb5172ea
JS		 4847 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4848 GFP_KERNEL);
4849 if (!mboxq) {
4850 rc = -ENOMEM;
4851 goto out_free_bsmbx;
4852 }
4853
fedd3b7b 4854 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
cb5172ea
JS		 4855 lpfc_supported_pages(mboxq);
4856 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
fedd3b7b
JS		 4857 if (!rc) {
4858 mqe = &mboxq->u.mqe;
4859 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4860 LPFC_MAX_SUPPORTED_PAGES);
4861 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4862 switch (pn_page[i]) {
4863 case LPFC_SLI4_PARAMETERS:
4864 phba->sli4_hba.pc_sli4_params.supported = 1;
4865 break;
4866 default:
4867 break;
4868 }
4869 }
4870 /* Read the port's SLI4 Parameters capabilities if supported. */
4871 if (phba->sli4_hba.pc_sli4_params.supported)
4872 rc = lpfc_pc_sli4_params_get(phba, mboxq);
4873 if (rc) {
4874 mempool_free(mboxq, phba->mbox_mem_pool);
4875 rc = -EIO;
4876 goto out_free_bsmbx;
cb5172ea
JS		 4877 }
4878 }
fedd3b7b
JS		 4879 /*
4880 * Get sli4 parameters that override parameters from Port capabilities.
6d368e53
JS		 4881 * If this call fails, it isn't critical unless the SLI4 parameters come
4882 * back in conflict.
fedd3b7b 4883 */
6d368e53
JS		 4884 rc = lpfc_get_sli4_parameters(phba, mboxq);
4885 if (rc) {
4886 if (phba->sli4_hba.extents_in_use &&
4887 phba->sli4_hba.rpi_hdrs_in_use) {
4888 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4889 "2999 Unsupported SLI4 Parameters "
4890 "Extents and RPI headers enabled.\n");
4891 goto out_free_bsmbx;
4892 }
4893 }
cb5172ea 4894 mempool_free(mboxq, phba->mbox_mem_pool);
5350d872
JS		 4895 /* Verify all the SLI4 queues */
4896 rc = lpfc_sli4_queue_verify(phba);
da0436e9
JS		 4897 if (rc)
4898 goto out_free_bsmbx;
4899
4900 /* Create driver internal CQE event pool */
4901 rc = lpfc_sli4_cq_event_pool_create(phba);
4902 if (rc)
5350d872 4903 goto out_free_bsmbx;
da0436e9 4904
8a9d2e80
JS		 4905 /* Initialize sgl lists per host */
4906 lpfc_init_sgl_list(phba);
4907
4908 /* Allocate and initialize active sgl array */
da0436e9
JS		 4909 rc = lpfc_init_active_sgl_array(phba);
4910 if (rc) {
4911 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4912 "1430 Failed to initialize sgl list.\n");
8a9d2e80 4913 goto out_destroy_cq_event_pool;
da0436e9 4914 }
da0436e9
JS		 4915 rc = lpfc_sli4_init_rpi_hdrs(phba);
4916 if (rc) {
4917 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4918 "1432 Failed to initialize rpi headers.\n");
4919 goto out_free_active_sgl;
4920 }
4921
a93ff37a 4922 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
0c9ab6f5
JS		 4923 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4924 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4925 GFP_KERNEL);
4926 if (!phba->fcf.fcf_rr_bmask) {
4927 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4928 "2759 Failed allocate memory for FCF round "
4929 "robin failover bmask\n");
0558056c 4930 rc = -ENOMEM;
0c9ab6f5
JS		 4931 goto out_remove_rpi_hdrs;
4932 }
4933
5350d872
JS		 4934 /*
4935 * The cfg_fcp_eq_count can be zero whenever there is exactly one
4936 * interrupt vector. This is not an error
4937 */
4938 if (phba->cfg_fcp_eq_count) {
4939 phba->sli4_hba.fcp_eq_hdl =
4940 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
da0436e9 4941 phba->cfg_fcp_eq_count), GFP_KERNEL);
5350d872
JS		 4942 if (!phba->sli4_hba.fcp_eq_hdl) {
4943 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4944 "2572 Failed allocate memory for "
4945 "fast-path per-EQ handle array\n");
4946 rc = -ENOMEM;
4947 goto out_free_fcf_rr_bmask;
4948 }
da0436e9
JS		 4949 }
4950
4951 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4952 phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4953 if (!phba->sli4_hba.msix_entries) {
4954 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4955 "2573 Failed allocate memory for msi-x "
4956 "interrupt vector entries\n");
0558056c 4957 rc = -ENOMEM;
da0436e9
JS		 4958 goto out_free_fcp_eq_hdl;
4959 }
4960
912e3acd
JS		 4961 /*
4962 * Enable sr-iov virtual functions if supported and configured
4963 * through the module parameter.
4964 */
4965 if (phba->cfg_sriov_nr_virtfn > 0) {
4966 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4967 phba->cfg_sriov_nr_virtfn);
4968 if (rc) {
4969 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4970 "3020 Requested number of SR-IOV "
4971 "virtual functions (%d) is not "
4972 "supported\n",
4973 phba->cfg_sriov_nr_virtfn);
4974 phba->cfg_sriov_nr_virtfn = 0;
4975 }
4976 }
4977
5248a749 4978 return 0;
da0436e9
JS		 4979
4980out_free_fcp_eq_hdl:
4981 kfree(phba->sli4_hba.fcp_eq_hdl);
0c9ab6f5
JS		 4982out_free_fcf_rr_bmask:
4983 kfree(phba->fcf.fcf_rr_bmask);
da0436e9
JS		 4984out_remove_rpi_hdrs:
4985 lpfc_sli4_remove_rpi_hdrs(phba);
4986out_free_active_sgl:
4987 lpfc_free_active_sgl(phba);
da0436e9
JS		 4988out_destroy_cq_event_pool:
4989 lpfc_sli4_cq_event_pool_destroy(phba);
da0436e9
JS		 4990out_free_bsmbx:
4991 lpfc_destroy_bootstrap_mbox(phba);
4992out_free_mem:
4993 lpfc_mem_free(phba);
4994 return rc;
4995}
4996
4997/**
4998 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4999 * @phba: pointer to lpfc hba data structure.
5000 *
5001 * This routine is invoked to unset the driver internal resources set up
5002 * specific for supporting the SLI-4 HBA device it attached to.
5003 **/
5004static void
5005lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5006{
5007 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5008
da0436e9
JS		 5009 /* Free memory allocated for msi-x interrupt vector entries */
5010 kfree(phba->sli4_hba.msix_entries);
5011
5012 /* Free memory allocated for fast-path work queue handles */
5013 kfree(phba->sli4_hba.fcp_eq_hdl);
5014
5015 /* Free the allocated rpi headers. */
5016 lpfc_sli4_remove_rpi_hdrs(phba);
d11e31dd 5017 lpfc_sli4_remove_rpis(phba);
da0436e9 5018
0c9ab6f5
JS		 5019 /* Free eligible FCF index bmask */
5020 kfree(phba->fcf.fcf_rr_bmask);
5021
da0436e9
JS		 5022 /* Free the ELS sgl list */
5023 lpfc_free_active_sgl(phba);
8a9d2e80 5024 lpfc_free_els_sgl_list(phba);
da0436e9 5025
da0436e9
JS		 5026 /* Free the completion queue EQ event pool */
5027 lpfc_sli4_cq_event_release_all(phba);
5028 lpfc_sli4_cq_event_pool_destroy(phba);
5029
6d368e53
JS		 5030 /* Release resource identifiers. */
5031 lpfc_sli4_dealloc_resource_identifiers(phba);
5032
da0436e9
JS		 5033 /* Free the bsmbx region. */
5034 lpfc_destroy_bootstrap_mbox(phba);
5035
5036 /* Free the SLI Layer memory with SLI4 HBAs */
5037 lpfc_mem_free_all(phba);
5038
5039 /* Free the current connect table */
5040 list_for_each_entry_safe(conn_entry, next_conn_entry,
4d9ab994
JS		 5041 &phba->fcf_conn_rec_list, list) {
5042 list_del_init(&conn_entry->list);
da0436e9 5043 kfree(conn_entry);
4d9ab994 5044 }
da0436e9
JS		 5045
5046 return;
5047}
5048
5049/**
25985edc 5050 * lpfc_init_api_table_setup - Set up init api function jump table
da0436e9
JS		 5051 * @phba: The hba struct for which this call is being executed.
5052 * @dev_grp: The HBA PCI-Device group number.
5053 *
5054 * This routine sets up the device INIT interface API function jump table
5055 * in @phba struct.
5056 *
5057 * Returns: 0 - success, -ENODEV - failure.
5058 **/
5059int
5060lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5061{
84d1b006
JS		 5062 phba->lpfc_hba_init_link = lpfc_hba_init_link;
5063 phba->lpfc_hba_down_link = lpfc_hba_down_link;
7f86059a 5064 phba->lpfc_selective_reset = lpfc_selective_reset;
da0436e9
JS		 5065 switch (dev_grp) {
5066 case LPFC_PCI_DEV_LP:
5067 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5068 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5069 phba->lpfc_stop_port = lpfc_stop_port_s3;
5070 break;
5071 case LPFC_PCI_DEV_OC:
5072 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5073 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5074 phba->lpfc_stop_port = lpfc_stop_port_s4;
5075 break;
5076 default:
5077 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5078 "1431 Invalid HBA PCI-device group: 0x%x\n",
5079 dev_grp);
5080 return -ENODEV;
5081 break;
5082 }
5083 return 0;
5084}
5085
5086/**
5087 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5088 * @phba: pointer to lpfc hba data structure.
5089 *
5090 * This routine is invoked to set up the driver internal resources before the
5091 * device specific resource setup to support the HBA device it attached to.
5092 *
5093 * Return codes
af901ca1 5094 * 0 - successful
da0436e9
JS		 5095 * other values - error
5096 **/
5097static int
5098lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5099{
5100 /*
5101 * Driver resources common to all SLI revisions
5102 */
5103 atomic_set(&phba->fast_event_count, 0);
5104 spin_lock_init(&phba->hbalock);
5105
5106 /* Initialize ndlp management spinlock */
5107 spin_lock_init(&phba->ndlp_lock);
5108
5109 INIT_LIST_HEAD(&phba->port_list);
5110 INIT_LIST_HEAD(&phba->work_list);
5111 init_waitqueue_head(&phba->wait_4_mlo_m_q);
5112
5113 /* Initialize the wait queue head for the kernel thread */
5114 init_waitqueue_head(&phba->work_waitq);
5115
5116 /* Initialize the scsi buffer list used by driver for scsi IO */
5117 spin_lock_init(&phba->scsi_buf_list_lock);
5118 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
5119
5120 /* Initialize the fabric iocb list */
5121 INIT_LIST_HEAD(&phba->fabric_iocb_list);
5122
5123 /* Initialize list to save ELS buffers */
5124 INIT_LIST_HEAD(&phba->elsbuf);
5125
5126 /* Initialize FCF connection rec list */
5127 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5128
5129 return 0;
5130}
5131
5132/**
5133 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5134 * @phba: pointer to lpfc hba data structure.
5135 *
5136 * This routine is invoked to set up the driver internal resources after the
5137 * device specific resource setup to support the HBA device it attached to.
5138 *
5139 * Return codes
af901ca1 5140 * 0 - successful
da0436e9
JS		 5141 * other values - error
5142 **/
5143static int
5144lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5145{
5146 int error;
5147
5148 /* Startup the kernel thread for this host adapter. */
5149 phba->worker_thread = kthread_run(lpfc_do_work, phba,
5150 "lpfc_worker_%d", phba->brd_no);
5151 if (IS_ERR(phba->worker_thread)) {
5152 error = PTR_ERR(phba->worker_thread);
5153 return error;
3772a991
JS		 5154 }
5155
5156 return 0;
5157}
5158
5159/**
5160 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5161 * @phba: pointer to lpfc hba data structure.
5162 *
5163 * This routine is invoked to unset the driver internal resources set up after
5164 * the device specific resource setup for supporting the HBA device it
5165 * attached to.
5166 **/
5167static void
5168lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5169{
5170 /* Stop kernel worker thread */
5171 kthread_stop(phba->worker_thread);
5172}
5173
5174/**
5175 * lpfc_free_iocb_list - Free iocb list.
5176 * @phba: pointer to lpfc hba data structure.
5177 *
5178 * This routine is invoked to free the driver's IOCB list and memory.
5179 **/
5180static void
5181lpfc_free_iocb_list(struct lpfc_hba *phba)
5182{
5183 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5184
5185 spin_lock_irq(&phba->hbalock);
5186 list_for_each_entry_safe(iocbq_entry, iocbq_next,
5187 &phba->lpfc_iocb_list, list) {
5188 list_del(&iocbq_entry->list);
5189 kfree(iocbq_entry);
5190 phba->total_iocbq_bufs--;
98c9ea5c 5191 }
3772a991
JS		 5192 spin_unlock_irq(&phba->hbalock);
5193
5194 return;
5195}
5196
5197/**
5198 * lpfc_init_iocb_list - Allocate and initialize iocb list.
5199 * @phba: pointer to lpfc hba data structure.
5200 *
5201 * This routine is invoked to allocate and initizlize the driver's IOCB
5202 * list and set up the IOCB tag array accordingly.
5203 *
5204 * Return codes
af901ca1 5205 * 0 - successful
3772a991
JS		 5206 * other values - error
5207 **/
5208static int
5209lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5210{
5211 struct lpfc_iocbq *iocbq_entry = NULL;
5212 uint16_t iotag;
5213 int i;
dea3101e 5214
5215 /* Initialize and populate the iocb list per host. */
5216 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
3772a991 5217 for (i = 0; i < iocb_count; i++) {
dd00cc48 5218 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
dea3101e 5219 if (iocbq_entry == NULL) {
5220 printk(KERN_ERR "%s: only allocated %d iocbs of "
5221 "expected %d count. Unloading driver.\n",
cadbd4a5 5222 __func__, i, LPFC_IOCB_LIST_CNT);
dea3101e 5223 goto out_free_iocbq;
5224 }
5225
604a3e30
JB		 5226 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5227 if (iotag == 0) {
3772a991 5228 kfree(iocbq_entry);
604a3e30 5229 printk(KERN_ERR "%s: failed to allocate IOTAG. "
3772a991 5230 "Unloading driver.\n", __func__);
604a3e30
JB		 5231 goto out_free_iocbq;
5232 }
6d368e53 5233 iocbq_entry->sli4_lxritag = NO_XRI;
3772a991 5234 iocbq_entry->sli4_xritag = NO_XRI;
2e0fef85
JS		 5235
5236 spin_lock_irq(&phba->hbalock);
dea3101e 5237 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5238 phba->total_iocbq_bufs++;
2e0fef85 5239 spin_unlock_irq(&phba->hbalock);
dea3101e 5240 }
5241
3772a991 5242 return 0;
dea3101e 5243
3772a991
JS		 5244out_free_iocbq:
5245 lpfc_free_iocb_list(phba);
dea3101e 5246
3772a991
JS		 5247 return -ENOMEM;
5248}
5e9d9b82 5249
3772a991 5250/**
8a9d2e80 5251 * lpfc_free_sgl_list - Free a given sgl list.
da0436e9 5252 * @phba: pointer to lpfc hba data structure.
8a9d2e80 5253 * @sglq_list: pointer to the head of sgl list.
3772a991 5254 *
8a9d2e80 5255 * This routine is invoked to free a give sgl list and memory.
3772a991 5256 **/
8a9d2e80
JS		 5257void
5258lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
3772a991 5259{
da0436e9 5260 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8a9d2e80
JS		 5261
5262 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5263 list_del(&sglq_entry->list);
5264 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5265 kfree(sglq_entry);
5266 }
5267}
5268
5269/**
5270 * lpfc_free_els_sgl_list - Free els sgl list.
5271 * @phba: pointer to lpfc hba data structure.
5272 *
5273 * This routine is invoked to free the driver's els sgl list and memory.
5274 **/
5275static void
5276lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5277{
da0436e9 5278 LIST_HEAD(sglq_list);
dea3101e 5279
8a9d2e80 5280 /* Retrieve all els sgls from driver list */
da0436e9
JS		 5281 spin_lock_irq(&phba->hbalock);
5282 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5283 spin_unlock_irq(&phba->hbalock);
dea3101e 5284
8a9d2e80
JS		 5285 /* Now free the sgl list */
5286 lpfc_free_sgl_list(phba, &sglq_list);
da0436e9 5287}
92d7f7b0 5288
da0436e9
JS		 5289/**
5290 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5291 * @phba: pointer to lpfc hba data structure.
5292 *
5293 * This routine is invoked to allocate the driver's active sgl memory.
5294 * This array will hold the sglq_entry's for active IOs.
5295 **/
5296static int
5297lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5298{
5299 int size;
5300 size = sizeof(struct lpfc_sglq *);
5301 size *= phba->sli4_hba.max_cfg_param.max_xri;
5302
5303 phba->sli4_hba.lpfc_sglq_active_list =
5304 kzalloc(size, GFP_KERNEL);
5305 if (!phba->sli4_hba.lpfc_sglq_active_list)
5306 return -ENOMEM;
5307 return 0;
3772a991
JS		 5308}
5309
5310/**
da0436e9 5311 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
3772a991
JS		 5312 * @phba: pointer to lpfc hba data structure.
5313 *
da0436e9
JS		 5314 * This routine is invoked to walk through the array of active sglq entries
5315 * and free all of the resources.
5316 * This is just a place holder for now.
3772a991
JS		 5317 **/
5318static void
da0436e9 5319lpfc_free_active_sgl(struct lpfc_hba *phba)
3772a991 5320{
da0436e9 5321 kfree(phba->sli4_hba.lpfc_sglq_active_list);
3772a991
JS		 5322}
5323
5324/**
da0436e9 5325 * lpfc_init_sgl_list - Allocate and initialize sgl list.
3772a991
JS		 5326 * @phba: pointer to lpfc hba data structure.
5327 *
da0436e9
JS		 5328 * This routine is invoked to allocate and initizlize the driver's sgl
5329 * list and set up the sgl xritag tag array accordingly.
3772a991 5330 *
3772a991 5331 **/
8a9d2e80 5332static void
da0436e9 5333lpfc_init_sgl_list(struct lpfc_hba *phba)
3772a991 5334{
da0436e9
JS		 5335 /* Initialize and populate the sglq list per host/VF. */
5336 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5337 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5338
8a9d2e80
JS		 5339 /* els xri-sgl book keeping */
5340 phba->sli4_hba.els_xri_cnt = 0;
0ff10d46 5341
8a9d2e80 5342 /* scsi xri-buffer book keeping */
da0436e9 5343 phba->sli4_hba.scsi_xri_cnt = 0;
da0436e9
JS		 5344}
5345
5346/**
5347 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5348 * @phba: pointer to lpfc hba data structure.
5349 *
5350 * This routine is invoked to post rpi header templates to the
88a2cfbb 5351 * port for those SLI4 ports that do not support extents. This routine
da0436e9 5352 * posts a PAGE_SIZE memory region to the port to hold up to
88a2cfbb
JS		 5353 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
5354 * and should be called only when interrupts are disabled.
da0436e9
JS		 5355 *
5356 * Return codes
af901ca1 5357 * 0 - successful
88a2cfbb 5358 * -ERROR - otherwise.
da0436e9
JS		 5359 **/
5360int
5361lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5362{
5363 int rc = 0;
da0436e9
JS		 5364 struct lpfc_rpi_hdr *rpi_hdr;
5365
5366 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
ff78d8f9 5367 if (!phba->sli4_hba.rpi_hdrs_in_use)
6d368e53 5368 return rc;
6d368e53
JS		 5369 if (phba->sli4_hba.extents_in_use)
5370 return -EIO;
da0436e9
JS		 5371
5372 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5373 if (!rpi_hdr) {
5374 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5375 "0391 Error during rpi post operation\n");
5376 lpfc_sli4_remove_rpis(phba);
5377 rc = -ENODEV;
5378 }
5379
5380 return rc;
5381}
5382
5383/**
5384 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5385 * @phba: pointer to lpfc hba data structure.
5386 *
5387 * This routine is invoked to allocate a single 4KB memory region to
5388 * support rpis and stores them in the phba. This single region
5389 * provides support for up to 64 rpis. The region is used globally
5390 * by the device.
5391 *
5392 * Returns:
5393 * A valid rpi hdr on success.
5394 * A NULL pointer on any failure.
5395 **/
5396struct lpfc_rpi_hdr *
5397lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5398{
5399 uint16_t rpi_limit, curr_rpi_range;
5400 struct lpfc_dmabuf *dmabuf;
5401 struct lpfc_rpi_hdr *rpi_hdr;
9589b062 5402 uint32_t rpi_count;
da0436e9 5403
6d368e53
JS		 5404 /*
5405 * If the SLI4 port supports extents, posting the rpi header isn't
5406 * required. Set the expected maximum count and let the actual value
5407 * get set when extents are fully allocated.
5408 */
5409 if (!phba->sli4_hba.rpi_hdrs_in_use)
5410 return NULL;
5411 if (phba->sli4_hba.extents_in_use)
5412 return NULL;
5413
5414 /* The limit on the logical index is just the max_rpi count. */
da0436e9 5415 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
6d368e53 5416 phba->sli4_hba.max_cfg_param.max_rpi - 1;
da0436e9
JS		 5417
5418 spin_lock_irq(&phba->hbalock);
6d368e53
JS		 5419 /*
5420 * Establish the starting RPI in this header block. The starting
5421 * rpi is normalized to a zero base because the physical rpi is
5422 * port based.
5423 */
97f2ecf1 5424 curr_rpi_range = phba->sli4_hba.next_rpi;
da0436e9
JS		 5425 spin_unlock_irq(&phba->hbalock);
5426
5427 /*
5428 * The port has a limited number of rpis. The increment here
5429 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5430 * and to allow the full max_rpi range per port.
5431 */
5432 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
9589b062
JS		 5433 rpi_count = rpi_limit - curr_rpi_range;
5434 else
5435 rpi_count = LPFC_RPI_HDR_COUNT;
da0436e9 5436
6d368e53
JS		 5437 if (!rpi_count)
5438 return NULL;
da0436e9
JS		 5439 /*
5440 * First allocate the protocol header region for the port. The
5441 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5442 */
5443 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5444 if (!dmabuf)
5445 return NULL;
5446
5447 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5448 LPFC_HDR_TEMPLATE_SIZE,
5449 &dmabuf->phys,
5450 GFP_KERNEL);
5451 if (!dmabuf->virt) {
5452 rpi_hdr = NULL;
5453 goto err_free_dmabuf;
5454 }
5455
5456 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5457 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5458 rpi_hdr = NULL;
5459 goto err_free_coherent;
5460 }
5461
5462 /* Save the rpi header data for cleanup later. */
5463 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5464 if (!rpi_hdr)
5465 goto err_free_coherent;
5466
5467 rpi_hdr->dmabuf = dmabuf;
5468 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5469 rpi_hdr->page_count = 1;
5470 spin_lock_irq(&phba->hbalock);
6d368e53
JS		 5471
5472 /* The rpi_hdr stores the logical index only. */
5473 rpi_hdr->start_rpi = curr_rpi_range;
da0436e9
JS		 5474 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5475
5476 /*
6d368e53
JS		 5477 * The next_rpi stores the next logical module-64 rpi value used
5478 * to post physical rpis in subsequent rpi postings.
da0436e9 5479 */
9589b062 5480 phba->sli4_hba.next_rpi += rpi_count;
da0436e9
JS		 5481 spin_unlock_irq(&phba->hbalock);
5482 return rpi_hdr;
5483
5484 err_free_coherent:
5485 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5486 dmabuf->virt, dmabuf->phys);
5487 err_free_dmabuf:
5488 kfree(dmabuf);
5489 return NULL;
5490}
5491
5492/**
5493 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5494 * @phba: pointer to lpfc hba data structure.
5495 *
5496 * This routine is invoked to remove all memory resources allocated
6d368e53
JS		 5497 * to support rpis for SLI4 ports not supporting extents. This routine
5498 * presumes the caller has released all rpis consumed by fabric or port
5499 * logins and is prepared to have the header pages removed.
da0436e9
JS		 5500 **/
5501void
5502lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5503{
5504 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5505
6d368e53
JS		 5506 if (!phba->sli4_hba.rpi_hdrs_in_use)
5507 goto exit;
5508
da0436e9
JS		 5509 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5510 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5511 list_del(&rpi_hdr->list);
5512 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5513 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5514 kfree(rpi_hdr->dmabuf);
5515 kfree(rpi_hdr);
5516 }
6d368e53
JS		 5517 exit:
5518 /* There are no rpis available to the port now. */
5519 phba->sli4_hba.next_rpi = 0;
da0436e9
JS		 5520}
5521
5522/**
5523 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5524 * @pdev: pointer to pci device data structure.
5525 *
5526 * This routine is invoked to allocate the driver hba data structure for an
5527 * HBA device. If the allocation is successful, the phba reference to the
5528 * PCI device data structure is set.
5529 *
5530 * Return codes
af901ca1 5531 * pointer to @phba - successful
da0436e9
JS		 5532 * NULL - error
5533 **/
5534static struct lpfc_hba *
5535lpfc_hba_alloc(struct pci_dev *pdev)
5536{
5537 struct lpfc_hba *phba;
5538
5539 /* Allocate memory for HBA structure */
5540 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5541 if (!phba) {
e34ccdfe 5542 dev_err(&pdev->dev, "failed to allocate hba struct\n");
da0436e9
JS		 5543 return NULL;
5544 }
5545
5546 /* Set reference to PCI device in HBA structure */
5547 phba->pcidev = pdev;
5548
5549 /* Assign an unused board number */
5550 phba->brd_no = lpfc_get_instance();
5551 if (phba->brd_no < 0) {
5552 kfree(phba);
5553 return NULL;
5554 }
5555
4fede78f 5556 spin_lock_init(&phba->ct_ev_lock);
f1c3b0fc
JS		 5557 INIT_LIST_HEAD(&phba->ct_ev_waiters);
5558
da0436e9
JS		 5559 return phba;
5560}
5561
5562/**
5563 * lpfc_hba_free - Free driver hba data structure with a device.
5564 * @phba: pointer to lpfc hba data structure.
5565 *
5566 * This routine is invoked to free the driver hba data structure with an
5567 * HBA device.
5568 **/
5569static void
5570lpfc_hba_free(struct lpfc_hba *phba)
5571{
5572 /* Release the driver assigned board number */
5573 idr_remove(&lpfc_hba_index, phba->brd_no);
5574
2a76a283
JS		 5575 /* Free memory allocated with sli rings */
5576 kfree(phba->sli.ring);
5577 phba->sli.ring = NULL;
5578
da0436e9
JS		 5579 kfree(phba);
5580 return;
5581}
5582
5583/**
5584 * lpfc_create_shost - Create hba physical port with associated scsi host.
5585 * @phba: pointer to lpfc hba data structure.
5586 *
5587 * This routine is invoked to create HBA physical port and associate a SCSI
5588 * host with it.
5589 *
5590 * Return codes
af901ca1 5591 * 0 - successful
da0436e9
JS		 5592 * other values - error
5593 **/
5594static int
5595lpfc_create_shost(struct lpfc_hba *phba)
5596{
5597 struct lpfc_vport *vport;
5598 struct Scsi_Host *shost;
5599
5600 /* Initialize HBA FC structure */
5601 phba->fc_edtov = FF_DEF_EDTOV;
5602 phba->fc_ratov = FF_DEF_RATOV;
5603 phba->fc_altov = FF_DEF_ALTOV;
5604 phba->fc_arbtov = FF_DEF_ARBTOV;
5605
d7c47992 5606 atomic_set(&phba->sdev_cnt, 0);
da0436e9
JS		 5607 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5608 if (!vport)
5609 return -ENODEV;
5610
5611 shost = lpfc_shost_from_vport(vport);
5612 phba->pport = vport;
5613 lpfc_debugfs_initialize(vport);
5614 /* Put reference to SCSI host to driver's device private data */
5615 pci_set_drvdata(phba->pcidev, shost);
2e0fef85 5616
3772a991
JS		 5617 return 0;
5618}
db2378e0 5619
3772a991
JS		 5620/**
5621 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5622 * @phba: pointer to lpfc hba data structure.
5623 *
5624 * This routine is invoked to destroy HBA physical port and the associated
5625 * SCSI host.
5626 **/
5627static void
5628lpfc_destroy_shost(struct lpfc_hba *phba)
5629{
5630 struct lpfc_vport *vport = phba->pport;
5631
5632 /* Destroy physical port that associated with the SCSI host */
5633 destroy_port(vport);
5634
5635 return;
5636}
5637
5638/**
5639 * lpfc_setup_bg - Setup Block guard structures and debug areas.
5640 * @phba: pointer to lpfc hba data structure.
5641 * @shost: the shost to be used to detect Block guard settings.
5642 *
5643 * This routine sets up the local Block guard protocol settings for @shost.
5644 * This routine also allocates memory for debugging bg buffers.
5645 **/
5646static void
5647lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5648{
bbeb79b9
JS		 5649 uint32_t old_mask;
5650 uint32_t old_guard;
5651
3772a991
JS		 5652 int pagecnt = 10;
5653 if (lpfc_prot_mask && lpfc_prot_guard) {
5654 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5655 "1478 Registering BlockGuard with the "
5656 "SCSI layer\n");
bbeb79b9
JS		 5657
5658 old_mask = lpfc_prot_mask;
5659 old_guard = lpfc_prot_guard;
5660
5661 /* Only allow supported values */
5662 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
5663 SHOST_DIX_TYPE0_PROTECTION |
5664 SHOST_DIX_TYPE1_PROTECTION);
5665 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
5666
5667 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
5668 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
5669 lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
5670
5671 if (lpfc_prot_mask && lpfc_prot_guard) {
5672 if ((old_mask != lpfc_prot_mask) ||
5673 (old_guard != lpfc_prot_guard))
5674 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5675 "1475 Registering BlockGuard with the "
5676 "SCSI layer: mask %d guard %d\n",
5677 lpfc_prot_mask, lpfc_prot_guard);
5678
5679 scsi_host_set_prot(shost, lpfc_prot_mask);
5680 scsi_host_set_guard(shost, lpfc_prot_guard);
5681 } else
5682 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5683 "1479 Not Registering BlockGuard with the SCSI "
5684 "layer, Bad protection parameters: %d %d\n",
5685 old_mask, old_guard);
3772a991 5686 }
bbeb79b9 5687
3772a991
JS		 5688 if (!_dump_buf_data) {
5689 while (pagecnt) {
5690 spin_lock_init(&_dump_buf_lock);
5691 _dump_buf_data =
5692 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5693 if (_dump_buf_data) {
6a9c52cf
JS		 5694 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5695 "9043 BLKGRD: allocated %d pages for "
3772a991
JS		 5696 "_dump_buf_data at 0x%p\n",
5697 (1 << pagecnt), _dump_buf_data);
5698 _dump_buf_data_order = pagecnt;
5699 memset(_dump_buf_data, 0,
5700 ((1 << PAGE_SHIFT) << pagecnt));
5701 break;
5702 } else
5703 --pagecnt;
5704 }
5705 if (!_dump_buf_data_order)
6a9c52cf
JS		 5706 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5707 "9044 BLKGRD: ERROR unable to allocate "
3772a991
JS		 5708 "memory for hexdump\n");
5709 } else
6a9c52cf
JS		 5710 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5711 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
3772a991
JS		 5712 "\n", _dump_buf_data);
5713 if (!_dump_buf_dif) {
5714 while (pagecnt) {
5715 _dump_buf_dif =
5716 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5717 if (_dump_buf_dif) {
6a9c52cf
JS		 5718 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5719 "9046 BLKGRD: allocated %d pages for "
3772a991
JS		 5720 "_dump_buf_dif at 0x%p\n",
5721 (1 << pagecnt), _dump_buf_dif);
5722 _dump_buf_dif_order = pagecnt;
5723 memset(_dump_buf_dif, 0,
5724 ((1 << PAGE_SHIFT) << pagecnt));
5725 break;
5726 } else
5727 --pagecnt;
5728 }
5729 if (!_dump_buf_dif_order)
6a9c52cf
JS		 5730 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5731 "9047 BLKGRD: ERROR unable to allocate "
3772a991
JS		 5732 "memory for hexdump\n");
5733 } else
6a9c52cf
JS		 5734 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5735 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
3772a991
JS		 5736 _dump_buf_dif);
5737}
5738
5739/**
5740 * lpfc_post_init_setup - Perform necessary device post initialization setup.
5741 * @phba: pointer to lpfc hba data structure.
5742 *
5743 * This routine is invoked to perform all the necessary post initialization
5744 * setup for the device.
5745 **/
5746static void
5747lpfc_post_init_setup(struct lpfc_hba *phba)
5748{
5749 struct Scsi_Host *shost;
5750 struct lpfc_adapter_event_header adapter_event;
5751
5752 /* Get the default values for Model Name and Description */
5753 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5754
5755 /*
5756 * hba setup may have changed the hba_queue_depth so we need to
5757 * adjust the value of can_queue.
5758 */
5759 shost = pci_get_drvdata(phba->pcidev);
5760 shost->can_queue = phba->cfg_hba_queue_depth - 10;
5761 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5762 lpfc_setup_bg(phba, shost);
5763
5764 lpfc_host_attrib_init(shost);
5765
5766 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5767 spin_lock_irq(shost->host_lock);
5768 lpfc_poll_start_timer(phba);
5769 spin_unlock_irq(shost->host_lock);
5770 }
5771
5772 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5773 "0428 Perform SCSI scan\n");
5774 /* Send board arrival event to upper layer */
5775 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5776 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5777 fc_host_post_vendor_event(shost, fc_get_event_number(),
5778 sizeof(adapter_event),
5779 (char *) &adapter_event,
5780 LPFC_NL_VENDOR_ID);
5781 return;
5782}
5783
5784/**
5785 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5786 * @phba: pointer to lpfc hba data structure.
5787 *
5788 * This routine is invoked to set up the PCI device memory space for device
5789 * with SLI-3 interface spec.
5790 *
5791 * Return codes
af901ca1 5792 * 0 - successful
3772a991
JS		 5793 * other values - error
5794 **/
5795static int
5796lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5797{
5798 struct pci_dev *pdev;
5799 unsigned long bar0map_len, bar2map_len;
5800 int i, hbq_count;
5801 void *ptr;
5802 int error = -ENODEV;
5803
5804 /* Obtain PCI device reference */
5805 if (!phba->pcidev)
5806 return error;
5807 else
5808 pdev = phba->pcidev;
5809
5810 /* Set the device DMA mask size */
8e68597d
MR		 5811 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5812 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5813 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5814 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
3772a991 5815 return error;
8e68597d
MR		 5816 }
5817 }
3772a991
JS		 5818
5819 /* Get the bus address of Bar0 and Bar2 and the number of bytes
5820 * required by each mapping.
5821 */
5822 phba->pci_bar0_map = pci_resource_start(pdev, 0);
5823 bar0map_len = pci_resource_len(pdev, 0);
5824
5825 phba->pci_bar2_map = pci_resource_start(pdev, 2);
5826 bar2map_len = pci_resource_len(pdev, 2);
5827
5828 /* Map HBA SLIM to a kernel virtual address. */
5829 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5830 if (!phba->slim_memmap_p) {
5831 dev_printk(KERN_ERR, &pdev->dev,
5832 "ioremap failed for SLIM memory.\n");
5833 goto out;
5834 }
5835
5836 /* Map HBA Control Registers to a kernel virtual address. */
5837 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5838 if (!phba->ctrl_regs_memmap_p) {
5839 dev_printk(KERN_ERR, &pdev->dev,
5840 "ioremap failed for HBA control registers.\n");
5841 goto out_iounmap_slim;
5842 }
5843
5844 /* Allocate memory for SLI-2 structures */
5845 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5846 SLI2_SLIM_SIZE,
5847 &phba->slim2p.phys,
5848 GFP_KERNEL);
5849 if (!phba->slim2p.virt)
5850 goto out_iounmap;
5851
5852 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5853 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7a470277
JS		 5854 phba->mbox_ext = (phba->slim2p.virt +
5855 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
3772a991
JS		 5856 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5857 phba->IOCBs = (phba->slim2p.virt +
5858 offsetof(struct lpfc_sli2_slim, IOCBs));
5859
5860 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5861 lpfc_sli_hbq_size(),
5862 &phba->hbqslimp.phys,
5863 GFP_KERNEL);
5864 if (!phba->hbqslimp.virt)
5865 goto out_free_slim;
5866
5867 hbq_count = lpfc_sli_hbq_count();
5868 ptr = phba->hbqslimp.virt;
5869 for (i = 0; i < hbq_count; ++i) {
5870 phba->hbqs[i].hbq_virt = ptr;
5871 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5872 ptr += (lpfc_hbq_defs[i]->entry_count *
5873 sizeof(struct lpfc_hbq_entry));
5874 }
5875 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5876 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5877
5878 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5879
5880 INIT_LIST_HEAD(&phba->rb_pend_list);
5881
5882 phba->MBslimaddr = phba->slim_memmap_p;
5883 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5884 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5885 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5886 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5887
5888 return 0;
5889
5890out_free_slim:
5891 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5892 phba->slim2p.virt, phba->slim2p.phys);
5893out_iounmap:
5894 iounmap(phba->ctrl_regs_memmap_p);
5895out_iounmap_slim:
5896 iounmap(phba->slim_memmap_p);
5897out:
5898 return error;
5899}
5900
5901/**
5902 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5903 * @phba: pointer to lpfc hba data structure.
5904 *
5905 * This routine is invoked to unset the PCI device memory space for device
5906 * with SLI-3 interface spec.
5907 **/
5908static void
5909lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5910{
5911 struct pci_dev *pdev;
5912
5913 /* Obtain PCI device reference */
5914 if (!phba->pcidev)
5915 return;
5916 else
5917 pdev = phba->pcidev;
5918
5919 /* Free coherent DMA memory allocated */
5920 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5921 phba->hbqslimp.virt, phba->hbqslimp.phys);
5922 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5923 phba->slim2p.virt, phba->slim2p.phys);
5924
5925 /* I/O memory unmap */
5926 iounmap(phba->ctrl_regs_memmap_p);
5927 iounmap(phba->slim_memmap_p);
5928
5929 return;
5930}
5931
5932/**
da0436e9 5933 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
3772a991
JS		 5934 * @phba: pointer to lpfc hba data structure.
5935 *
da0436e9
JS		 5936 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5937 * done and check status.
3772a991 5938 *
da0436e9 5939 * Return 0 if successful, otherwise -ENODEV.
3772a991 5940 **/
da0436e9
JS		 5941int
5942lpfc_sli4_post_status_check(struct lpfc_hba *phba)
3772a991 5943{
2fcee4bf
JS		 5944 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
5945 struct lpfc_register reg_data;
5946 int i, port_error = 0;
5947 uint32_t if_type;
3772a991 5948
9940b97b
JS		 5949 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
5950 memset(&reg_data, 0, sizeof(reg_data));
2fcee4bf 5951 if (!phba->sli4_hba.PSMPHRregaddr)
da0436e9 5952 return -ENODEV;
3772a991 5953
da0436e9
JS		 5954 /* Wait up to 30 seconds for the SLI Port POST done and ready */
5955 for (i = 0; i < 3000; i++) {
9940b97b
JS		 5956 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
5957 &portsmphr_reg.word0) ||
5958 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
2fcee4bf 5959 /* Port has a fatal POST error, break out */
da0436e9
JS		 5960 port_error = -ENODEV;
5961 break;
5962 }
2fcee4bf
JS		 5963 if (LPFC_POST_STAGE_PORT_READY ==
5964 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
da0436e9 5965 break;
da0436e9 5966 msleep(10);
3772a991
JS		 5967 }
5968
2fcee4bf
JS		 5969 /*
5970 * If there was a port error during POST, then don't proceed with
5971 * other register reads as the data may not be valid. Just exit.
5972 */
5973 if (port_error) {
da0436e9 5974 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2fcee4bf
JS		 5975 "1408 Port Failed POST - portsmphr=0x%x, "
5976 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
5977 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
5978 portsmphr_reg.word0,
5979 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
5980 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
5981 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
5982 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
5983 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
5984 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
5985 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
5986 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
5987 } else {
28baac74 5988 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2fcee4bf
JS		 5989 "2534 Device Info: SLIFamily=0x%x, "
5990 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
5991 "SLIHint_2=0x%x, FT=0x%x\n",
28baac74
JS		 5992 bf_get(lpfc_sli_intf_sli_family,
5993 &phba->sli4_hba.sli_intf),
5994 bf_get(lpfc_sli_intf_slirev,
5995 &phba->sli4_hba.sli_intf),
085c647c
JS		 5996 bf_get(lpfc_sli_intf_if_type,
5997 &phba->sli4_hba.sli_intf),
5998 bf_get(lpfc_sli_intf_sli_hint1,
28baac74 5999 &phba->sli4_hba.sli_intf),
085c647c
JS		 6000 bf_get(lpfc_sli_intf_sli_hint2,
6001 &phba->sli4_hba.sli_intf),
6002 bf_get(lpfc_sli_intf_func_type,
28baac74 6003 &phba->sli4_hba.sli_intf));
2fcee4bf
JS		 6004 /*
6005 * Check for other Port errors during the initialization
6006 * process. Fail the load if the port did not come up
6007 * correctly.
6008 */
6009 if_type = bf_get(lpfc_sli_intf_if_type,
6010 &phba->sli4_hba.sli_intf);
6011 switch (if_type) {
6012 case LPFC_SLI_INTF_IF_TYPE_0:
6013 phba->sli4_hba.ue_mask_lo =
6014 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6015 phba->sli4_hba.ue_mask_hi =
6016 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6017 uerrlo_reg.word0 =
6018 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6019 uerrhi_reg.word0 =
6020 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6021 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6022 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6023 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6024 "1422 Unrecoverable Error "
6025 "Detected during POST "
6026 "uerr_lo_reg=0x%x, "
6027 "uerr_hi_reg=0x%x, "
6028 "ue_mask_lo_reg=0x%x, "
6029 "ue_mask_hi_reg=0x%x\n",
6030 uerrlo_reg.word0,
6031 uerrhi_reg.word0,
6032 phba->sli4_hba.ue_mask_lo,
6033 phba->sli4_hba.ue_mask_hi);
6034 port_error = -ENODEV;
6035 }
6036 break;
6037 case LPFC_SLI_INTF_IF_TYPE_2:
6038 /* Final checks. The port status should be clean. */
9940b97b
JS		 6039 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6040 &reg_data.word0) ||
0558056c
JS		 6041 (bf_get(lpfc_sliport_status_err, &reg_data) &&
6042 !bf_get(lpfc_sliport_status_rn, &reg_data))) {
2fcee4bf
JS		 6043 phba->work_status[0] =
6044 readl(phba->sli4_hba.u.if_type2.
6045 ERR1regaddr);
6046 phba->work_status[1] =
6047 readl(phba->sli4_hba.u.if_type2.
6048 ERR2regaddr);
6049 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8fcb8acd
JS		 6050 "2888 Unrecoverable port error "
6051 "following POST: port status reg "
6052 "0x%x, port_smphr reg 0x%x, "
2fcee4bf
JS		 6053 "error 1=0x%x, error 2=0x%x\n",
6054 reg_data.word0,
6055 portsmphr_reg.word0,
6056 phba->work_status[0],
6057 phba->work_status[1]);
6058 port_error = -ENODEV;
6059 }
6060 break;
6061 case LPFC_SLI_INTF_IF_TYPE_1:
6062 default:
6063 break;
6064 }
28baac74 6065 }
da0436e9
JS		 6066 return port_error;
6067}
3772a991 6068
da0436e9
JS		 6069/**
6070 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6071 * @phba: pointer to lpfc hba data structure.
2fcee4bf 6072 * @if_type: The SLI4 interface type getting configured.
da0436e9
JS		 6073 *
6074 * This routine is invoked to set up SLI4 BAR0 PCI config space register
6075 * memory map.
6076 **/
6077static void
2fcee4bf
JS		 6078lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6079{
6080 switch (if_type) {
6081 case LPFC_SLI_INTF_IF_TYPE_0:
6082 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6083 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6084 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6085 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6086 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6087 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6088 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6089 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6090 phba->sli4_hba.SLIINTFregaddr =
6091 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6092 break;
6093 case LPFC_SLI_INTF_IF_TYPE_2:
6094 phba->sli4_hba.u.if_type2.ERR1regaddr =
88a2cfbb
JS		 6095 phba->sli4_hba.conf_regs_memmap_p +
6096 LPFC_CTL_PORT_ER1_OFFSET;
2fcee4bf 6097 phba->sli4_hba.u.if_type2.ERR2regaddr =
88a2cfbb
JS		 6098 phba->sli4_hba.conf_regs_memmap_p +
6099 LPFC_CTL_PORT_ER2_OFFSET;
2fcee4bf 6100 phba->sli4_hba.u.if_type2.CTRLregaddr =
88a2cfbb
JS		 6101 phba->sli4_hba.conf_regs_memmap_p +
6102 LPFC_CTL_PORT_CTL_OFFSET;
2fcee4bf 6103 phba->sli4_hba.u.if_type2.STATUSregaddr =
88a2cfbb
JS		 6104 phba->sli4_hba.conf_regs_memmap_p +
6105 LPFC_CTL_PORT_STA_OFFSET;
2fcee4bf
JS		 6106 phba->sli4_hba.SLIINTFregaddr =
6107 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6108 phba->sli4_hba.PSMPHRregaddr =
88a2cfbb
JS		 6109 phba->sli4_hba.conf_regs_memmap_p +
6110 LPFC_CTL_PORT_SEM_OFFSET;
2fcee4bf
JS		 6111 phba->sli4_hba.RQDBregaddr =
6112 phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
6113 phba->sli4_hba.WQDBregaddr =
6114 phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
6115 phba->sli4_hba.EQCQDBregaddr =
6116 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6117 phba->sli4_hba.MQDBregaddr =
6118 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6119 phba->sli4_hba.BMBXregaddr =
6120 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6121 break;
6122 case LPFC_SLI_INTF_IF_TYPE_1:
6123 default:
6124 dev_printk(KERN_ERR, &phba->pcidev->dev,
6125 "FATAL - unsupported SLI4 interface type - %d\n",
6126 if_type);
6127 break;
6128 }
da0436e9 6129}
3772a991 6130
da0436e9
JS		 6131/**
6132 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6133 * @phba: pointer to lpfc hba data structure.
6134 *
6135 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6136 * memory map.
6137 **/
6138static void
6139lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6140{
2fcee4bf
JS		 6141 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6142 LPFC_SLIPORT_IF0_SMPHR;
da0436e9 6143 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 6144 LPFC_HST_ISR0;
da0436e9 6145 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 6146 LPFC_HST_IMR0;
da0436e9 6147 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 6148 LPFC_HST_ISCR0;
3772a991
JS		 6149}
6150
6151/**
da0436e9 6152 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
3772a991 6153 * @phba: pointer to lpfc hba data structure.
da0436e9 6154 * @vf: virtual function number
3772a991 6155 *
da0436e9
JS		 6156 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6157 * based on the given viftual function number, @vf.
6158 *
6159 * Return 0 if successful, otherwise -ENODEV.
3772a991 6160 **/
da0436e9
JS		 6161static int
6162lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
3772a991 6163{
da0436e9
JS		 6164 if (vf > LPFC_VIR_FUNC_MAX)
6165 return -ENODEV;
3772a991 6166
da0436e9
JS		 6167 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6168 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
6169 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6170 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
6171 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6172 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6173 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6174 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6175 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6176 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6177 return 0;
3772a991
JS		 6178}
6179
6180/**
da0436e9 6181 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
3772a991
JS		 6182 * @phba: pointer to lpfc hba data structure.
6183 *
da0436e9
JS		 6184 * This routine is invoked to create the bootstrap mailbox
6185 * region consistent with the SLI-4 interface spec. This
6186 * routine allocates all memory necessary to communicate
6187 * mailbox commands to the port and sets up all alignment
6188 * needs. No locks are expected to be held when calling
6189 * this routine.
3772a991
JS		 6190 *
6191 * Return codes
af901ca1 6192 * 0 - successful
d439d286 6193 * -ENOMEM - could not allocated memory.
da0436e9 6194 **/
3772a991 6195static int
da0436e9 6196lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
3772a991 6197{
da0436e9
JS		 6198 uint32_t bmbx_size;
6199 struct lpfc_dmabuf *dmabuf;
6200 struct dma_address *dma_address;
6201 uint32_t pa_addr;
6202 uint64_t phys_addr;
6203
6204 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6205 if (!dmabuf)
6206 return -ENOMEM;
3772a991 6207
da0436e9
JS		 6208 /*
6209 * The bootstrap mailbox region is comprised of 2 parts
6210 * plus an alignment restriction of 16 bytes.
6211 */
6212 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6213 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
6214 bmbx_size,
6215 &dmabuf->phys,
6216 GFP_KERNEL);
6217 if (!dmabuf->virt) {
6218 kfree(dmabuf);
6219 return -ENOMEM;
3772a991 6220 }
da0436e9 6221 memset(dmabuf->virt, 0, bmbx_size);
3772a991 6222
da0436e9
JS		 6223 /*
6224 * Initialize the bootstrap mailbox pointers now so that the register
6225 * operations are simple later. The mailbox dma address is required
6226 * to be 16-byte aligned. Also align the virtual memory as each
6227 * maibox is copied into the bmbx mailbox region before issuing the
6228 * command to the port.
6229 */
6230 phba->sli4_hba.bmbx.dmabuf = dmabuf;
6231 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6232
6233 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6234 LPFC_ALIGN_16_BYTE);
6235 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6236 LPFC_ALIGN_16_BYTE);
6237
6238 /*
6239 * Set the high and low physical addresses now. The SLI4 alignment
6240 * requirement is 16 bytes and the mailbox is posted to the port
6241 * as two 30-bit addresses. The other data is a bit marking whether
6242 * the 30-bit address is the high or low address.
6243 * Upcast bmbx aphys to 64bits so shift instruction compiles
6244 * clean on 32 bit machines.
6245 */
6246 dma_address = &phba->sli4_hba.bmbx.dma_address;
6247 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6248 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6249 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6250 LPFC_BMBX_BIT1_ADDR_HI);
6251
6252 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6253 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6254 LPFC_BMBX_BIT1_ADDR_LO);
6255 return 0;
3772a991
JS		 6256}
6257
6258/**
da0436e9 6259 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
3772a991
JS		 6260 * @phba: pointer to lpfc hba data structure.
6261 *
da0436e9
JS		 6262 * This routine is invoked to teardown the bootstrap mailbox
6263 * region and release all host resources. This routine requires
6264 * the caller to ensure all mailbox commands recovered, no
6265 * additional mailbox comands are sent, and interrupts are disabled
6266 * before calling this routine.
6267 *
6268 **/
3772a991 6269static void
da0436e9 6270lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
3772a991 6271{
da0436e9
JS		 6272 dma_free_coherent(&phba->pcidev->dev,
6273 phba->sli4_hba.bmbx.bmbx_size,
6274 phba->sli4_hba.bmbx.dmabuf->virt,
6275 phba->sli4_hba.bmbx.dmabuf->phys);
6276
6277 kfree(phba->sli4_hba.bmbx.dmabuf);
6278 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
3772a991
JS		 6279}
6280
6281/**
da0436e9 6282 * lpfc_sli4_read_config - Get the config parameters.
3772a991
JS		 6283 * @phba: pointer to lpfc hba data structure.
6284 *
da0436e9
JS		 6285 * This routine is invoked to read the configuration parameters from the HBA.
6286 * The configuration parameters are used to set the base and maximum values
6287 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6288 * allocation for the port.
3772a991
JS		 6289 *
6290 * Return codes
af901ca1 6291 * 0 - successful
25985edc 6292 * -ENOMEM - No available memory
d439d286 6293 * -EIO - The mailbox failed to complete successfully.
3772a991 6294 **/
ff78d8f9 6295int
da0436e9 6296lpfc_sli4_read_config(struct lpfc_hba *phba)
3772a991 6297{
da0436e9
JS		 6298 LPFC_MBOXQ_t *pmb;
6299 struct lpfc_mbx_read_config *rd_config;
912e3acd
JS		 6300 union lpfc_sli4_cfg_shdr *shdr;
6301 uint32_t shdr_status, shdr_add_status;
6302 struct lpfc_mbx_get_func_cfg *get_func_cfg;
6303 struct lpfc_rsrc_desc_fcfcoe *desc;
6304 uint32_t desc_count;
6305 int length, i, rc = 0;
3772a991 6306
da0436e9
JS		 6307 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6308 if (!pmb) {
6309 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6310 "2011 Unable to allocate memory for issuing "
6311 "SLI_CONFIG_SPECIAL mailbox command\n");
6312 return -ENOMEM;
3772a991
JS		 6313 }
6314
da0436e9 6315 lpfc_read_config(phba, pmb);
3772a991 6316
da0436e9
JS		 6317 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6318 if (rc != MBX_SUCCESS) {
6319 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6320 "2012 Mailbox failed , mbxCmd x%x "
6321 "READ_CONFIG, mbxStatus x%x\n",
6322 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6323 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6324 rc = -EIO;
6325 } else {
6326 rd_config = &pmb->u.mqe.un.rd_config;
ff78d8f9
JS		 6327 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6328 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6329 phba->sli4_hba.lnk_info.lnk_tp =
6330 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6331 phba->sli4_hba.lnk_info.lnk_no =
6332 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6333 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6334 "3081 lnk_type:%d, lnk_numb:%d\n",
6335 phba->sli4_hba.lnk_info.lnk_tp,
6336 phba->sli4_hba.lnk_info.lnk_no);
6337 } else
6338 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6339 "3082 Mailbox (x%x) returned ldv:x0\n",
6340 bf_get(lpfc_mqe_command, &pmb->u.mqe));
6d368e53
JS		 6341 phba->sli4_hba.extents_in_use =
6342 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
da0436e9
JS		 6343 phba->sli4_hba.max_cfg_param.max_xri =
6344 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6345 phba->sli4_hba.max_cfg_param.xri_base =
6346 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6347 phba->sli4_hba.max_cfg_param.max_vpi =
6348 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6349 phba->sli4_hba.max_cfg_param.vpi_base =
6350 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6351 phba->sli4_hba.max_cfg_param.max_rpi =
6352 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6353 phba->sli4_hba.max_cfg_param.rpi_base =
6354 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6355 phba->sli4_hba.max_cfg_param.max_vfi =
6356 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6357 phba->sli4_hba.max_cfg_param.vfi_base =
6358 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6359 phba->sli4_hba.max_cfg_param.max_fcfi =
6360 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
da0436e9
JS		 6361 phba->sli4_hba.max_cfg_param.max_eq =
6362 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6363 phba->sli4_hba.max_cfg_param.max_rq =
6364 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6365 phba->sli4_hba.max_cfg_param.max_wq =
6366 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6367 phba->sli4_hba.max_cfg_param.max_cq =
6368 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6369 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6370 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6371 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6372 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5ffc266e
JS		 6373 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6374 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
da0436e9
JS		 6375 phba->max_vports = phba->max_vpi;
6376 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6d368e53
JS		 6377 "2003 cfg params Extents? %d "
6378 "XRI(B:%d M:%d), "
da0436e9
JS		 6379 "VPI(B:%d M:%d) "
6380 "VFI(B:%d M:%d) "
6381 "RPI(B:%d M:%d) "
6d368e53
JS		 6382 "FCFI(Count:%d)\n",
6383 phba->sli4_hba.extents_in_use,
da0436e9
JS		 6384 phba->sli4_hba.max_cfg_param.xri_base,
6385 phba->sli4_hba.max_cfg_param.max_xri,
6386 phba->sli4_hba.max_cfg_param.vpi_base,
6387 phba->sli4_hba.max_cfg_param.max_vpi,
6388 phba->sli4_hba.max_cfg_param.vfi_base,
6389 phba->sli4_hba.max_cfg_param.max_vfi,
6390 phba->sli4_hba.max_cfg_param.rpi_base,
6391 phba->sli4_hba.max_cfg_param.max_rpi,
da0436e9 6392 phba->sli4_hba.max_cfg_param.max_fcfi);
3772a991 6393 }
912e3acd
JS		 6394
6395 if (rc)
6396 goto read_cfg_out;
da0436e9
JS		 6397
6398 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
b92938b4
JS		 6399 if (phba->cfg_hba_queue_depth >
6400 (phba->sli4_hba.max_cfg_param.max_xri -
6401 lpfc_sli4_get_els_iocb_cnt(phba)))
da0436e9 6402 phba->cfg_hba_queue_depth =
b92938b4
JS		 6403 phba->sli4_hba.max_cfg_param.max_xri -
6404 lpfc_sli4_get_els_iocb_cnt(phba);
912e3acd
JS		 6405
6406 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6407 LPFC_SLI_INTF_IF_TYPE_2)
6408 goto read_cfg_out;
6409
6410 /* get the pf# and vf# for SLI4 if_type 2 port */
6411 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6412 sizeof(struct lpfc_sli4_cfg_mhdr));
6413 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6414 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6415 length, LPFC_SLI4_MBX_EMBED);
6416
6417 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6418 shdr = (union lpfc_sli4_cfg_shdr *)
6419 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6420 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6421 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6422 if (rc || shdr_status || shdr_add_status) {
6423 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6424 "3026 Mailbox failed , mbxCmd x%x "
6425 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6426 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6427 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6428 rc = -EIO;
6429 goto read_cfg_out;
6430 }
6431
6432 /* search for fc_fcoe resrouce descriptor */
6433 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6434 desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6435
6436 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6437 desc = (struct lpfc_rsrc_desc_fcfcoe *)
6438 &get_func_cfg->func_cfg.desc[i];
6439 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6440 bf_get(lpfc_rsrc_desc_pcie_type, desc)) {
6441 phba->sli4_hba.iov.pf_number =
6442 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6443 phba->sli4_hba.iov.vf_number =
6444 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6445 break;
6446 }
6447 }
6448
6449 if (i < LPFC_RSRC_DESC_MAX_NUM)
6450 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6451 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6452 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6453 phba->sli4_hba.iov.vf_number);
6454 else {
6455 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6456 "3028 GET_FUNCTION_CONFIG: failed to find "
6457 "Resrouce Descriptor:x%x\n",
6458 LPFC_RSRC_DESC_TYPE_FCFCOE);
6459 rc = -EIO;
6460 }
6461
6462read_cfg_out:
6463 mempool_free(pmb, phba->mbox_mem_pool);
da0436e9 6464 return rc;
3772a991
JS		 6465}
6466
6467/**
2fcee4bf 6468 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
3772a991
JS		 6469 * @phba: pointer to lpfc hba data structure.
6470 *
2fcee4bf
JS		 6471 * This routine is invoked to setup the port-side endian order when
6472 * the port if_type is 0. This routine has no function for other
6473 * if_types.
da0436e9
JS		 6474 *
6475 * Return codes
af901ca1 6476 * 0 - successful
25985edc 6477 * -ENOMEM - No available memory
d439d286 6478 * -EIO - The mailbox failed to complete successfully.
3772a991 6479 **/
da0436e9
JS		 6480static int
6481lpfc_setup_endian_order(struct lpfc_hba *phba)
3772a991 6482{
da0436e9 6483 LPFC_MBOXQ_t *mboxq;
2fcee4bf 6484 uint32_t if_type, rc = 0;
da0436e9
JS		 6485 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6486 HOST_ENDIAN_HIGH_WORD1};
3772a991 6487
2fcee4bf
JS		 6488 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6489 switch (if_type) {
6490 case LPFC_SLI_INTF_IF_TYPE_0:
6491 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6492 GFP_KERNEL);
6493 if (!mboxq) {
6494 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6495 "0492 Unable to allocate memory for "
6496 "issuing SLI_CONFIG_SPECIAL mailbox "
6497 "command\n");
6498 return -ENOMEM;
6499 }
3772a991 6500
2fcee4bf
JS		 6501 /*
6502 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6503 * two words to contain special data values and no other data.
6504 */
6505 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6506 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6507 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6508 if (rc != MBX_SUCCESS) {
6509 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6510 "0493 SLI_CONFIG_SPECIAL mailbox "
6511 "failed with status x%x\n",
6512 rc);
6513 rc = -EIO;
6514 }
6515 mempool_free(mboxq, phba->mbox_mem_pool);
6516 break;
6517 case LPFC_SLI_INTF_IF_TYPE_2:
6518 case LPFC_SLI_INTF_IF_TYPE_1:
6519 default:
6520 break;
da0436e9 6521 }
da0436e9 6522 return rc;
3772a991
JS		 6523}
6524
6525/**
5350d872 6526 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
3772a991
JS		 6527 * @phba: pointer to lpfc hba data structure.
6528 *
5350d872
JS		 6529 * This routine is invoked to check the user settable queue counts for EQs and
6530 * CQs. after this routine is called the counts will be set to valid values that
6531 * adhere to the constraints of the system's interrupt vectors and the port's
6532 * queue resources.
da0436e9
JS		 6533 *
6534 * Return codes
af901ca1 6535 * 0 - successful
25985edc 6536 * -ENOMEM - No available memory
3772a991 6537 **/
da0436e9 6538static int
5350d872 6539lpfc_sli4_queue_verify(struct lpfc_hba *phba)
3772a991 6540{
da0436e9
JS		 6541 int cfg_fcp_wq_count;
6542 int cfg_fcp_eq_count;
3772a991 6543
da0436e9
JS		 6544 /*
6545 * Sanity check for confiugred queue parameters against the run-time
6546 * device parameters
6547 */
3772a991 6548
da0436e9
JS		 6549 /* Sanity check on FCP fast-path WQ parameters */
6550 cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
6551 if (cfg_fcp_wq_count >
6552 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
6553 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
6554 LPFC_SP_WQN_DEF;
6555 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
6556 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6557 "2581 Not enough WQs (%d) from "
6558 "the pci function for supporting "
6559 "FCP WQs (%d)\n",
6560 phba->sli4_hba.max_cfg_param.max_wq,
6561 phba->cfg_fcp_wq_count);
6562 goto out_error;
6563 }
6564 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6565 "2582 Not enough WQs (%d) from the pci "
6566 "function for supporting the requested "
6567 "FCP WQs (%d), the actual FCP WQs can "
6568 "be supported: %d\n",
6569 phba->sli4_hba.max_cfg_param.max_wq,
6570 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
6571 }
6572 /* The actual number of FCP work queues adopted */
6573 phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
6574
6575 /* Sanity check on FCP fast-path EQ parameters */
6576 cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
6577 if (cfg_fcp_eq_count >
6578 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
6579 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
6580 LPFC_SP_EQN_DEF;
6581 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
6582 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6583 "2574 Not enough EQs (%d) from the "
6584 "pci function for supporting FCP "
6585 "EQs (%d)\n",
6586 phba->sli4_hba.max_cfg_param.max_eq,
6587 phba->cfg_fcp_eq_count);
6588 goto out_error;
6589 }
6590 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6591 "2575 Not enough EQs (%d) from the pci "
6592 "function for supporting the requested "
6593 "FCP EQs (%d), the actual FCP EQs can "
6594 "be supported: %d\n",
6595 phba->sli4_hba.max_cfg_param.max_eq,
6596 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
6597 }
6598 /* It does not make sense to have more EQs than WQs */
6599 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
6600 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6a9c52cf
JS		 6601 "2593 The FCP EQ count(%d) cannot be greater "
6602 "than the FCP WQ count(%d), limiting the "
6603 "FCP EQ count to %d\n", cfg_fcp_eq_count,
da0436e9
JS		 6604 phba->cfg_fcp_wq_count,
6605 phba->cfg_fcp_wq_count);
6606 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
6607 }
6608 /* The actual number of FCP event queues adopted */
6609 phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
6610 /* The overall number of event queues used */
6611 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
3772a991 6612
da0436e9
JS		 6613 /* Get EQ depth from module parameter, fake the default for now */
6614 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6615 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
3772a991 6616
5350d872
JS		 6617 /* Get CQ depth from module parameter, fake the default for now */
6618 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6619 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6620
6621 return 0;
6622out_error:
6623 return -ENOMEM;
6624}
6625
6626/**
6627 * lpfc_sli4_queue_create - Create all the SLI4 queues
6628 * @phba: pointer to lpfc hba data structure.
6629 *
6630 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6631 * operation. For each SLI4 queue type, the parameters such as queue entry
6632 * count (queue depth) shall be taken from the module parameter. For now,
6633 * we just use some constant number as place holder.
6634 *
6635 * Return codes
6636 * 0 - sucessful
6637 * -ENOMEM - No availble memory
6638 * -EIO - The mailbox failed to complete successfully.
6639 **/
6640int
6641lpfc_sli4_queue_create(struct lpfc_hba *phba)
6642{
6643 struct lpfc_queue *qdesc;
6644 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6645
6646 /*
6647 * Create Event Queues (EQs)
6648 */
6649
da0436e9
JS		 6650 /* Create slow path event queue */
6651 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6652 phba->sli4_hba.eq_ecount);
6653 if (!qdesc) {
6654 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6655 "0496 Failed allocate slow-path EQ\n");
6656 goto out_error;
6657 }
6658 phba->sli4_hba.sp_eq = qdesc;
6659
5350d872
JS		 6660 /*
6661 * Create fast-path FCP Event Queue(s). The cfg_fcp_eq_count can be
6662 * zero whenever there is exactly one interrupt vector. This is not
6663 * an error.
6664 */
6665 if (phba->cfg_fcp_eq_count) {
6666 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
6667 phba->cfg_fcp_eq_count), GFP_KERNEL);
6668 if (!phba->sli4_hba.fp_eq) {
6669 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6670 "2576 Failed allocate memory for "
6671 "fast-path EQ record array\n");
6672 goto out_free_sp_eq;
6673 }
da0436e9
JS		 6674 }
6675 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6676 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6677 phba->sli4_hba.eq_ecount);
6678 if (!qdesc) {
6679 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6680 "0497 Failed allocate fast-path EQ\n");
6681 goto out_free_fp_eq;
6682 }
6683 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
6684 }
6685
6686 /*
6687 * Create Complete Queues (CQs)
6688 */
6689
da0436e9
JS		 6690 /* Create slow-path Mailbox Command Complete Queue */
6691 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6692 phba->sli4_hba.cq_ecount);
6693 if (!qdesc) {
6694 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6695 "0500 Failed allocate slow-path mailbox CQ\n");
6696 goto out_free_fp_eq;
6697 }
6698 phba->sli4_hba.mbx_cq = qdesc;
6699
6700 /* Create slow-path ELS Complete Queue */
6701 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6702 phba->sli4_hba.cq_ecount);
6703 if (!qdesc) {
6704 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6705 "0501 Failed allocate slow-path ELS CQ\n");
6706 goto out_free_mbx_cq;
6707 }
6708 phba->sli4_hba.els_cq = qdesc;
6709
da0436e9 6710
5350d872
JS		 6711 /*
6712 * Create fast-path FCP Completion Queue(s), one-to-one with FCP EQs.
6713 * If there are no FCP EQs then create exactly one FCP CQ.
6714 */
6715 if (phba->cfg_fcp_eq_count)
6716 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6717 phba->cfg_fcp_eq_count),
6718 GFP_KERNEL);
6719 else
6720 phba->sli4_hba.fcp_cq = kzalloc(sizeof(struct lpfc_queue *),
6721 GFP_KERNEL);
da0436e9
JS		 6722 if (!phba->sli4_hba.fcp_cq) {
6723 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6724 "2577 Failed allocate memory for fast-path "
6725 "CQ record array\n");
4d9ab994 6726 goto out_free_els_cq;
da0436e9 6727 }
5350d872
JS		 6728 fcp_cqidx = 0;
6729 do {
da0436e9
JS		 6730 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6731 phba->sli4_hba.cq_ecount);
6732 if (!qdesc) {
6733 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6734 "0499 Failed allocate fast-path FCP "
6735 "CQ (%d)\n", fcp_cqidx);
6736 goto out_free_fcp_cq;
6737 }
6738 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
5350d872 6739 } while (++fcp_cqidx < phba->cfg_fcp_eq_count);
da0436e9
JS		 6740
6741 /* Create Mailbox Command Queue */
6742 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6743 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6744
6745 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
6746 phba->sli4_hba.mq_ecount);
6747 if (!qdesc) {
6748 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6749 "0505 Failed allocate slow-path MQ\n");
6750 goto out_free_fcp_cq;
6751 }
6752 phba->sli4_hba.mbx_wq = qdesc;
6753
6754 /*
6755 * Create all the Work Queues (WQs)
6756 */
6757 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6758 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6759
6760 /* Create slow-path ELS Work Queue */
6761 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6762 phba->sli4_hba.wq_ecount);
6763 if (!qdesc) {
6764 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6765 "0504 Failed allocate slow-path ELS WQ\n");
6766 goto out_free_mbx_wq;
6767 }
6768 phba->sli4_hba.els_wq = qdesc;
6769
6770 /* Create fast-path FCP Work Queue(s) */
6771 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6772 phba->cfg_fcp_wq_count), GFP_KERNEL);
6773 if (!phba->sli4_hba.fcp_wq) {
6774 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6775 "2578 Failed allocate memory for fast-path "
6776 "WQ record array\n");
6777 goto out_free_els_wq;
6778 }
6779 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6780 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6781 phba->sli4_hba.wq_ecount);
6782 if (!qdesc) {
6783 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6784 "0503 Failed allocate fast-path FCP "
6785 "WQ (%d)\n", fcp_wqidx);
6786 goto out_free_fcp_wq;
6787 }
6788 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
6789 }
6790
6791 /*
6792 * Create Receive Queue (RQ)
6793 */
6794 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6795 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6796
6797 /* Create Receive Queue for header */
6798 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6799 phba->sli4_hba.rq_ecount);
6800 if (!qdesc) {
6801 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6802 "0506 Failed allocate receive HRQ\n");
6803 goto out_free_fcp_wq;
6804 }
6805 phba->sli4_hba.hdr_rq = qdesc;
6806
6807 /* Create Receive Queue for data */
6808 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6809 phba->sli4_hba.rq_ecount);
6810 if (!qdesc) {
6811 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6812 "0507 Failed allocate receive DRQ\n");
6813 goto out_free_hdr_rq;
6814 }
6815 phba->sli4_hba.dat_rq = qdesc;
6816
6817 return 0;
6818
6819out_free_hdr_rq:
6820 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6821 phba->sli4_hba.hdr_rq = NULL;
6822out_free_fcp_wq:
6823 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
6824 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
6825 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
6826 }
6827 kfree(phba->sli4_hba.fcp_wq);
2e90f4b5 6828 phba->sli4_hba.fcp_wq = NULL;
da0436e9
JS		 6829out_free_els_wq:
6830 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6831 phba->sli4_hba.els_wq = NULL;
6832out_free_mbx_wq:
6833 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6834 phba->sli4_hba.mbx_wq = NULL;
6835out_free_fcp_cq:
6836 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
6837 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
6838 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
6839 }
6840 kfree(phba->sli4_hba.fcp_cq);
2e90f4b5 6841 phba->sli4_hba.fcp_cq = NULL;
da0436e9
JS		 6842out_free_els_cq:
6843 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6844 phba->sli4_hba.els_cq = NULL;
6845out_free_mbx_cq:
6846 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6847 phba->sli4_hba.mbx_cq = NULL;
6848out_free_fp_eq:
6849 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
6850 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
6851 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
6852 }
6853 kfree(phba->sli4_hba.fp_eq);
2e90f4b5 6854 phba->sli4_hba.fp_eq = NULL;
da0436e9
JS		 6855out_free_sp_eq:
6856 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6857 phba->sli4_hba.sp_eq = NULL;
6858out_error:
6859 return -ENOMEM;
6860}
6861
6862/**
6863 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6864 * @phba: pointer to lpfc hba data structure.
6865 *
6866 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6867 * operation.
6868 *
6869 * Return codes
af901ca1 6870 * 0 - successful
25985edc 6871 * -ENOMEM - No available memory
d439d286 6872 * -EIO - The mailbox failed to complete successfully.
da0436e9 6873 **/
5350d872 6874void
da0436e9
JS		 6875lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
6876{
6877 int fcp_qidx;
6878
6879 /* Release mailbox command work queue */
6880 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6881 phba->sli4_hba.mbx_wq = NULL;
6882
6883 /* Release ELS work queue */
6884 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6885 phba->sli4_hba.els_wq = NULL;
6886
6887 /* Release FCP work queue */
2e90f4b5
JS		 6888 if (phba->sli4_hba.fcp_wq != NULL)
6889 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count;
6890 fcp_qidx++)
6891 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
da0436e9
JS		 6892 kfree(phba->sli4_hba.fcp_wq);
6893 phba->sli4_hba.fcp_wq = NULL;
6894
6895 /* Release unsolicited receive queue */
6896 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6897 phba->sli4_hba.hdr_rq = NULL;
6898 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
6899 phba->sli4_hba.dat_rq = NULL;
6900
da0436e9
JS		 6901 /* Release ELS complete queue */
6902 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6903 phba->sli4_hba.els_cq = NULL;
6904
6905 /* Release mailbox command complete queue */
6906 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6907 phba->sli4_hba.mbx_cq = NULL;
6908
6909 /* Release FCP response complete queue */
0558056c 6910 fcp_qidx = 0;
2e90f4b5
JS		 6911 if (phba->sli4_hba.fcp_cq != NULL)
6912 do
6913 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
6914 while (++fcp_qidx < phba->cfg_fcp_eq_count);
da0436e9
JS		 6915 kfree(phba->sli4_hba.fcp_cq);
6916 phba->sli4_hba.fcp_cq = NULL;
6917
6918 /* Release fast-path event queue */
2e90f4b5
JS		 6919 if (phba->sli4_hba.fp_eq != NULL)
6920 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count;
6921 fcp_qidx++)
6922 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
da0436e9
JS		 6923 kfree(phba->sli4_hba.fp_eq);
6924 phba->sli4_hba.fp_eq = NULL;
6925
6926 /* Release slow-path event queue */
6927 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6928 phba->sli4_hba.sp_eq = NULL;
6929
6930 return;
6931}
6932
6933/**
6934 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
6935 * @phba: pointer to lpfc hba data structure.
6936 *
6937 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
6938 * operation.
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_sli4_queue_setup(struct lpfc_hba *phba)
6947{
2a76a283
JS		 6948 struct lpfc_sli *psli = &phba->sli;
6949 struct lpfc_sli_ring *pring;
da0436e9
JS		 6950 int rc = -ENOMEM;
6951 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6952 int fcp_cq_index = 0;
6953
6954 /*
6955 * Set up Event Queues (EQs)
6956 */
6957
6958 /* Set up slow-path event queue */
6959 if (!phba->sli4_hba.sp_eq) {
6960 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6961 "0520 Slow-path EQ not allocated\n");
6962 goto out_error;
6963 }
6964 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
6965 LPFC_SP_DEF_IMAX);
6966 if (rc) {
6967 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6968 "0521 Failed setup of slow-path EQ: "
6969 "rc = 0x%x\n", rc);
6970 goto out_error;
6971 }
6972 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6973 "2583 Slow-path EQ setup: queue-id=%d\n",
6974 phba->sli4_hba.sp_eq->queue_id);
6975
6976 /* Set up fast-path event queue */
1b51197d 6977 if (phba->cfg_fcp_eq_count && !phba->sli4_hba.fp_eq) {
2e90f4b5
JS		 6978 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6979 "3147 Fast-path EQs not allocated\n");
1b51197d 6980 rc = -ENOMEM;
2e90f4b5
JS		 6981 goto out_destroy_sp_eq;
6982 }
da0436e9
JS		 6983 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6984 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
6985 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6986 "0522 Fast-path EQ (%d) not "
6987 "allocated\n", fcp_eqidx);
1b51197d 6988 rc = -ENOMEM;
da0436e9
JS		 6989 goto out_destroy_fp_eq;
6990 }
6991 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
6992 phba->cfg_fcp_imax);
6993 if (rc) {
6994 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6995 "0523 Failed setup of fast-path EQ "
6996 "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6997 goto out_destroy_fp_eq;
6998 }
6999 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7000 "2584 Fast-path EQ setup: "
7001 "queue[%d]-id=%d\n", fcp_eqidx,
7002 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
7003 }
7004
7005 /*
7006 * Set up Complete Queues (CQs)
7007 */
7008
7009 /* Set up slow-path MBOX Complete Queue as the first CQ */
7010 if (!phba->sli4_hba.mbx_cq) {
7011 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7012 "0528 Mailbox CQ not allocated\n");
1b51197d 7013 rc = -ENOMEM;
da0436e9
JS		 7014 goto out_destroy_fp_eq;
7015 }
7016 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
7017 LPFC_MCQ, LPFC_MBOX);
7018 if (rc) {
7019 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7020 "0529 Failed setup of slow-path mailbox CQ: "
7021 "rc = 0x%x\n", rc);
7022 goto out_destroy_fp_eq;
7023 }
7024 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7025 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7026 phba->sli4_hba.mbx_cq->queue_id,
7027 phba->sli4_hba.sp_eq->queue_id);
7028
7029 /* Set up slow-path ELS Complete Queue */
7030 if (!phba->sli4_hba.els_cq) {
7031 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7032 "0530 ELS CQ not allocated\n");
1b51197d 7033 rc = -ENOMEM;
da0436e9
JS		 7034 goto out_destroy_mbx_cq;
7035 }
7036 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
7037 LPFC_WCQ, LPFC_ELS);
7038 if (rc) {
7039 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7040 "0531 Failed setup of slow-path ELS CQ: "
7041 "rc = 0x%x\n", rc);
7042 goto out_destroy_mbx_cq;
7043 }
7044 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7045 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7046 phba->sli4_hba.els_cq->queue_id,
7047 phba->sli4_hba.sp_eq->queue_id);
7048
da0436e9 7049 /* Set up fast-path FCP Response Complete Queue */
2e90f4b5
JS		 7050 if (!phba->sli4_hba.fcp_cq) {
7051 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7052 "3148 Fast-path FCP CQ array not "
7053 "allocated\n");
1b51197d 7054 rc = -ENOMEM;
2e90f4b5
JS		 7055 goto out_destroy_els_cq;
7056 }
0558056c
JS		 7057 fcp_cqidx = 0;
7058 do {
da0436e9
JS		 7059 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7060 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7061 "0526 Fast-path FCP CQ (%d) not "
7062 "allocated\n", fcp_cqidx);
1b51197d 7063 rc = -ENOMEM;
da0436e9
JS		 7064 goto out_destroy_fcp_cq;
7065 }
0558056c
JS		 7066 if (phba->cfg_fcp_eq_count)
7067 rc = lpfc_cq_create(phba,
7068 phba->sli4_hba.fcp_cq[fcp_cqidx],
7069 phba->sli4_hba.fp_eq[fcp_cqidx],
7070 LPFC_WCQ, LPFC_FCP);
7071 else
7072 rc = lpfc_cq_create(phba,
7073 phba->sli4_hba.fcp_cq[fcp_cqidx],
7074 phba->sli4_hba.sp_eq,
7075 LPFC_WCQ, LPFC_FCP);
da0436e9
JS		 7076 if (rc) {
7077 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7078 "0527 Failed setup of fast-path FCP "
7079 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
7080 goto out_destroy_fcp_cq;
7081 }
7082 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7083 "2588 FCP CQ setup: cq[%d]-id=%d, "
0558056c 7084 "parent %seq[%d]-id=%d\n",
da0436e9
JS		 7085 fcp_cqidx,
7086 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
0558056c 7087 (phba->cfg_fcp_eq_count) ? "" : "sp_",
da0436e9 7088 fcp_cqidx,
0558056c
JS		 7089 (phba->cfg_fcp_eq_count) ?
7090 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id :
7091 phba->sli4_hba.sp_eq->queue_id);
7092 } while (++fcp_cqidx < phba->cfg_fcp_eq_count);
da0436e9
JS		 7093
7094 /*
7095 * Set up all the Work Queues (WQs)
7096 */
7097
7098 /* Set up Mailbox Command Queue */
7099 if (!phba->sli4_hba.mbx_wq) {
7100 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7101 "0538 Slow-path MQ not allocated\n");
1b51197d 7102 rc = -ENOMEM;
da0436e9
JS		 7103 goto out_destroy_fcp_cq;
7104 }
7105 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7106 phba->sli4_hba.mbx_cq, LPFC_MBOX);
7107 if (rc) {
7108 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7109 "0539 Failed setup of slow-path MQ: "
7110 "rc = 0x%x\n", rc);
7111 goto out_destroy_fcp_cq;
7112 }
7113 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7114 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7115 phba->sli4_hba.mbx_wq->queue_id,
7116 phba->sli4_hba.mbx_cq->queue_id);
7117
7118 /* Set up slow-path ELS Work Queue */
7119 if (!phba->sli4_hba.els_wq) {
7120 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7121 "0536 Slow-path ELS WQ not allocated\n");
1b51197d 7122 rc = -ENOMEM;
da0436e9
JS		 7123 goto out_destroy_mbx_wq;
7124 }
7125 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7126 phba->sli4_hba.els_cq, LPFC_ELS);
7127 if (rc) {
7128 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7129 "0537 Failed setup of slow-path ELS WQ: "
7130 "rc = 0x%x\n", rc);
7131 goto out_destroy_mbx_wq;
7132 }
2a76a283
JS		 7133
7134 /* Bind this WQ to the ELS ring */
7135 pring = &psli->ring[LPFC_ELS_RING];
7136 pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7137 phba->sli4_hba.els_cq->pring = pring;
7138
da0436e9
JS		 7139 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7140 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7141 phba->sli4_hba.els_wq->queue_id,
7142 phba->sli4_hba.els_cq->queue_id);
7143
7144 /* Set up fast-path FCP Work Queue */
2e90f4b5
JS		 7145 if (!phba->sli4_hba.fcp_wq) {
7146 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7147 "3149 Fast-path FCP WQ array not "
7148 "allocated\n");
1b51197d 7149 rc = -ENOMEM;
2e90f4b5
JS		 7150 goto out_destroy_els_wq;
7151 }
da0436e9
JS		 7152 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
7153 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7155 "0534 Fast-path FCP WQ (%d) not "
7156 "allocated\n", fcp_wqidx);
1b51197d 7157 rc = -ENOMEM;
da0436e9
JS		 7158 goto out_destroy_fcp_wq;
7159 }
7160 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7161 phba->sli4_hba.fcp_cq[fcp_cq_index],
7162 LPFC_FCP);
7163 if (rc) {
7164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7165 "0535 Failed setup of fast-path FCP "
7166 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
7167 goto out_destroy_fcp_wq;
7168 }
2a76a283
JS		 7169
7170 /* Bind this WQ to the next FCP ring */
7171 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7172 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7173 phba->sli4_hba.fcp_cq[fcp_cq_index]->pring = pring;
7174
da0436e9
JS		 7175 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7176 "2591 FCP WQ setup: wq[%d]-id=%d, "
7177 "parent cq[%d]-id=%d\n",
7178 fcp_wqidx,
7179 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7180 fcp_cq_index,
7181 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
7182 /* Round robin FCP Work Queue's Completion Queue assignment */
0558056c
JS		 7183 if (phba->cfg_fcp_eq_count)
7184 fcp_cq_index = ((fcp_cq_index + 1) %
7185 phba->cfg_fcp_eq_count);
da0436e9
JS		 7186 }
7187
7188 /*
7189 * Create Receive Queue (RQ)
7190 */
7191 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7192 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7193 "0540 Receive Queue not allocated\n");
1b51197d 7194 rc = -ENOMEM;
da0436e9
JS		 7195 goto out_destroy_fcp_wq;
7196 }
73d91e50
JS		 7197
7198 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7199 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7200
da0436e9 7201 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
4d9ab994 7202 phba->sli4_hba.els_cq, LPFC_USOL);
da0436e9
JS		 7203 if (rc) {
7204 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7205 "0541 Failed setup of Receive Queue: "
7206 "rc = 0x%x\n", rc);
7207 goto out_destroy_fcp_wq;
7208 }
73d91e50 7209
da0436e9
JS		 7210 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7211 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7212 "parent cq-id=%d\n",
7213 phba->sli4_hba.hdr_rq->queue_id,
7214 phba->sli4_hba.dat_rq->queue_id,
4d9ab994 7215 phba->sli4_hba.els_cq->queue_id);
da0436e9
JS		 7216 return 0;
7217
7218out_destroy_fcp_wq:
7219 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7220 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
2e90f4b5 7221out_destroy_els_wq:
da0436e9
JS		 7222 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7223out_destroy_mbx_wq:
7224 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7225out_destroy_fcp_cq:
7226 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7227 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
2e90f4b5 7228out_destroy_els_cq:
da0436e9
JS		 7229 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7230out_destroy_mbx_cq:
7231 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7232out_destroy_fp_eq:
7233 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7234 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
2e90f4b5 7235out_destroy_sp_eq:
da0436e9
JS		 7236 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
7237out_error:
7238 return rc;
7239}
7240
7241/**
7242 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7243 * @phba: pointer to lpfc hba data structure.
7244 *
7245 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7246 * operation.
7247 *
7248 * Return codes
af901ca1 7249 * 0 - successful
25985edc 7250 * -ENOMEM - No available memory
d439d286 7251 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 7252 **/
7253void
7254lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7255{
7256 int fcp_qidx;
7257
7258 /* Unset mailbox command work queue */
7259 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7260 /* Unset ELS work queue */
7261 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7262 /* Unset unsolicited receive queue */
7263 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7264 /* Unset FCP work queue */
7265 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
7266 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7267 /* Unset mailbox command complete queue */
7268 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7269 /* Unset ELS complete queue */
7270 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
da0436e9 7271 /* Unset FCP response complete queue */
2e90f4b5
JS		 7272 if (phba->sli4_hba.fcp_cq) {
7273 fcp_qidx = 0;
7274 do {
7275 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7276 } while (++fcp_qidx < phba->cfg_fcp_eq_count);
7277 }
da0436e9 7278 /* Unset fast-path event queue */
2e90f4b5
JS		 7279 if (phba->sli4_hba.fp_eq) {
7280 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count;
7281 fcp_qidx++)
7282 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
7283 }
da0436e9
JS		 7284 /* Unset slow-path event queue */
7285 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
7286}
7287
7288/**
7289 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7290 * @phba: pointer to lpfc hba data structure.
7291 *
7292 * This routine is invoked to allocate and set up a pool of completion queue
7293 * events. The body of the completion queue event is a completion queue entry
7294 * CQE. For now, this pool is used for the interrupt service routine to queue
7295 * the following HBA completion queue events for the worker thread to process:
7296 * - Mailbox asynchronous events
7297 * - Receive queue completion unsolicited events
7298 * Later, this can be used for all the slow-path events.
7299 *
7300 * Return codes
af901ca1 7301 * 0 - successful
25985edc 7302 * -ENOMEM - No available memory
da0436e9
JS		 7303 **/
7304static int
7305lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7306{
7307 struct lpfc_cq_event *cq_event;
7308 int i;
7309
7310 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7311 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7312 if (!cq_event)
7313 goto out_pool_create_fail;
7314 list_add_tail(&cq_event->list,
7315 &phba->sli4_hba.sp_cqe_event_pool);
7316 }
7317 return 0;
7318
7319out_pool_create_fail:
7320 lpfc_sli4_cq_event_pool_destroy(phba);
7321 return -ENOMEM;
7322}
7323
7324/**
7325 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7326 * @phba: pointer to lpfc hba data structure.
7327 *
7328 * This routine is invoked to free the pool of completion queue events at
7329 * driver unload time. Note that, it is the responsibility of the driver
7330 * cleanup routine to free all the outstanding completion-queue events
7331 * allocated from this pool back into the pool before invoking this routine
7332 * to destroy the pool.
7333 **/
7334static void
7335lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7336{
7337 struct lpfc_cq_event *cq_event, *next_cq_event;
7338
7339 list_for_each_entry_safe(cq_event, next_cq_event,
7340 &phba->sli4_hba.sp_cqe_event_pool, list) {
7341 list_del(&cq_event->list);
7342 kfree(cq_event);
7343 }
7344}
7345
7346/**
7347 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7348 * @phba: pointer to lpfc hba data structure.
7349 *
7350 * This routine is the lock free version of the API invoked to allocate a
7351 * completion-queue event from the free pool.
7352 *
7353 * Return: Pointer to the newly allocated completion-queue event if successful
7354 * NULL otherwise.
7355 **/
7356struct lpfc_cq_event *
7357__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7358{
7359 struct lpfc_cq_event *cq_event = NULL;
7360
7361 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7362 struct lpfc_cq_event, list);
7363 return cq_event;
7364}
7365
7366/**
7367 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7368 * @phba: pointer to lpfc hba data structure.
7369 *
7370 * This routine is the lock version of the API invoked to allocate a
7371 * completion-queue event from the free pool.
7372 *
7373 * Return: Pointer to the newly allocated completion-queue event if successful
7374 * NULL otherwise.
7375 **/
7376struct lpfc_cq_event *
7377lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7378{
7379 struct lpfc_cq_event *cq_event;
7380 unsigned long iflags;
7381
7382 spin_lock_irqsave(&phba->hbalock, iflags);
7383 cq_event = __lpfc_sli4_cq_event_alloc(phba);
7384 spin_unlock_irqrestore(&phba->hbalock, iflags);
7385 return cq_event;
7386}
7387
7388/**
7389 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7390 * @phba: pointer to lpfc hba data structure.
7391 * @cq_event: pointer to the completion queue event to be freed.
7392 *
7393 * This routine is the lock free version of the API invoked to release a
7394 * completion-queue event back into the free pool.
7395 **/
7396void
7397__lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7398 struct lpfc_cq_event *cq_event)
7399{
7400 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7401}
7402
7403/**
7404 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7405 * @phba: pointer to lpfc hba data structure.
7406 * @cq_event: pointer to the completion queue event to be freed.
7407 *
7408 * This routine is the lock version of the API invoked to release a
7409 * completion-queue event back into the free pool.
7410 **/
7411void
7412lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7413 struct lpfc_cq_event *cq_event)
7414{
7415 unsigned long iflags;
7416 spin_lock_irqsave(&phba->hbalock, iflags);
7417 __lpfc_sli4_cq_event_release(phba, cq_event);
7418 spin_unlock_irqrestore(&phba->hbalock, iflags);
7419}
7420
7421/**
7422 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7423 * @phba: pointer to lpfc hba data structure.
7424 *
7425 * This routine is to free all the pending completion-queue events to the
7426 * back into the free pool for device reset.
7427 **/
7428static void
7429lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7430{
7431 LIST_HEAD(cqelist);
7432 struct lpfc_cq_event *cqe;
7433 unsigned long iflags;
7434
7435 /* Retrieve all the pending WCQEs from pending WCQE lists */
7436 spin_lock_irqsave(&phba->hbalock, iflags);
7437 /* Pending FCP XRI abort events */
7438 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
7439 &cqelist);
7440 /* Pending ELS XRI abort events */
7441 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
7442 &cqelist);
7443 /* Pending asynnc events */
7444 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
7445 &cqelist);
7446 spin_unlock_irqrestore(&phba->hbalock, iflags);
7447
7448 while (!list_empty(&cqelist)) {
7449 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
7450 lpfc_sli4_cq_event_release(phba, cqe);
7451 }
7452}
7453
7454/**
7455 * lpfc_pci_function_reset - Reset pci function.
7456 * @phba: pointer to lpfc hba data structure.
7457 *
7458 * This routine is invoked to request a PCI function reset. It will destroys
7459 * all resources assigned to the PCI function which originates this request.
7460 *
7461 * Return codes
af901ca1 7462 * 0 - successful
25985edc 7463 * -ENOMEM - No available memory
d439d286 7464 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 7465 **/
7466int
7467lpfc_pci_function_reset(struct lpfc_hba *phba)
7468{
7469 LPFC_MBOXQ_t *mboxq;
2fcee4bf 7470 uint32_t rc = 0, if_type;
da0436e9 7471 uint32_t shdr_status, shdr_add_status;
2fcee4bf 7472 uint32_t rdy_chk, num_resets = 0, reset_again = 0;
da0436e9 7473 union lpfc_sli4_cfg_shdr *shdr;
2fcee4bf 7474 struct lpfc_register reg_data;
2b81f942 7475 uint16_t devid;
da0436e9 7476
2fcee4bf
JS		 7477 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7478 switch (if_type) {
7479 case LPFC_SLI_INTF_IF_TYPE_0:
7480 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7481 GFP_KERNEL);
7482 if (!mboxq) {
7483 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7484 "0494 Unable to allocate memory for "
7485 "issuing SLI_FUNCTION_RESET mailbox "
7486 "command\n");
7487 return -ENOMEM;
7488 }
da0436e9 7489
2fcee4bf
JS		 7490 /* Setup PCI function reset mailbox-ioctl command */
7491 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7492 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
7493 LPFC_SLI4_MBX_EMBED);
7494 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7495 shdr = (union lpfc_sli4_cfg_shdr *)
7496 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7497 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7498 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7499 &shdr->response);
7500 if (rc != MBX_TIMEOUT)
7501 mempool_free(mboxq, phba->mbox_mem_pool);
7502 if (shdr_status || shdr_add_status || rc) {
7503 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7504 "0495 SLI_FUNCTION_RESET mailbox "
7505 "failed with status x%x add_status x%x,"
7506 " mbx status x%x\n",
7507 shdr_status, shdr_add_status, rc);
7508 rc = -ENXIO;
7509 }
7510 break;
7511 case LPFC_SLI_INTF_IF_TYPE_2:
7512 for (num_resets = 0;
7513 num_resets < MAX_IF_TYPE_2_RESETS;
7514 num_resets++) {
7515 reg_data.word0 = 0;
7516 bf_set(lpfc_sliport_ctrl_end, &reg_data,
7517 LPFC_SLIPORT_LITTLE_ENDIAN);
7518 bf_set(lpfc_sliport_ctrl_ip, &reg_data,
7519 LPFC_SLIPORT_INIT_PORT);
7520 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
7521 CTRLregaddr);
8fcb8acd 7522 /* flush */
2b81f942
JS		 7523 pci_read_config_word(phba->pcidev,
7524 PCI_DEVICE_ID, &devid);
2fcee4bf
JS		 7525 /*
7526 * Poll the Port Status Register and wait for RDY for
7527 * up to 10 seconds. If the port doesn't respond, treat
7528 * it as an error. If the port responds with RN, start
7529 * the loop again.
7530 */
7531 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
73d91e50 7532 msleep(10);
9940b97b
JS		 7533 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7534 STATUSregaddr, &reg_data.word0)) {
7535 rc = -ENODEV;
73d91e50 7536 goto out;
9940b97b 7537 }
6b5151fd 7538 if (bf_get(lpfc_sliport_status_rn, &reg_data))
2fcee4bf 7539 reset_again++;
6b5151fd 7540 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
2fcee4bf 7541 break;
2fcee4bf
JS		 7542 }
7543
7544 /*
7545 * If the port responds to the init request with
7546 * reset needed, delay for a bit and restart the loop.
7547 */
6b5151fd 7548 if (reset_again && (rdy_chk < 1000)) {
2fcee4bf
JS		 7549 msleep(10);
7550 reset_again = 0;
7551 continue;
7552 }
7553
7554 /* Detect any port errors. */
2fcee4bf
JS		 7555 if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
7556 (rdy_chk >= 1000)) {
7557 phba->work_status[0] = readl(
7558 phba->sli4_hba.u.if_type2.ERR1regaddr);
7559 phba->work_status[1] = readl(
7560 phba->sli4_hba.u.if_type2.ERR2regaddr);
7561 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8fcb8acd 7562 "2890 Port error detected during port "
8a9d2e80
JS		 7563 "reset(%d): wait_tmo:%d ms, "
7564 "port status reg 0x%x, "
2fcee4bf 7565 "error 1=0x%x, error 2=0x%x\n",
8a9d2e80
JS		 7566 num_resets, rdy_chk*10,
7567 reg_data.word0,
2fcee4bf
JS		 7568 phba->work_status[0],
7569 phba->work_status[1]);
7570 rc = -ENODEV;
7571 }
7572
7573 /*
7574 * Terminate the outer loop provided the Port indicated
7575 * ready within 10 seconds.
7576 */
7577 if (rdy_chk < 1000)
7578 break;
7579 }
0558056c
JS		 7580 /* delay driver action following IF_TYPE_2 function reset */
7581 msleep(100);
2fcee4bf
JS		 7582 break;
7583 case LPFC_SLI_INTF_IF_TYPE_1:
7584 default:
7585 break;
da0436e9 7586 }
2fcee4bf 7587
73d91e50 7588out:
2fcee4bf
JS		 7589 /* Catch the not-ready port failure after a port reset. */
7590 if (num_resets >= MAX_IF_TYPE_2_RESETS)
7591 rc = -ENODEV;
7592
da0436e9
JS		 7593 return rc;
7594}
7595
7596/**
7597 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
7598 * @phba: pointer to lpfc hba data structure.
7599 * @cnt: number of nop mailbox commands to send.
7600 *
7601 * This routine is invoked to send a number @cnt of NOP mailbox command and
7602 * wait for each command to complete.
7603 *
7604 * Return: the number of NOP mailbox command completed.
7605 **/
7606static int
7607lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
7608{
7609 LPFC_MBOXQ_t *mboxq;
7610 int length, cmdsent;
7611 uint32_t mbox_tmo;
7612 uint32_t rc = 0;
7613 uint32_t shdr_status, shdr_add_status;
7614 union lpfc_sli4_cfg_shdr *shdr;
7615
7616 if (cnt == 0) {
7617 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7618 "2518 Requested to send 0 NOP mailbox cmd\n");
7619 return cnt;
7620 }
7621
7622 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7623 if (!mboxq) {
7624 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7625 "2519 Unable to allocate memory for issuing "
7626 "NOP mailbox command\n");
7627 return 0;
7628 }
7629
7630 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
7631 length = (sizeof(struct lpfc_mbx_nop) -
7632 sizeof(struct lpfc_sli4_cfg_mhdr));
da0436e9 7633
da0436e9 7634 for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
59df3acf
JS		 7635 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7636 LPFC_MBOX_OPCODE_NOP, length,
7637 LPFC_SLI4_MBX_EMBED);
da0436e9
JS		 7638 if (!phba->sli4_hba.intr_enable)
7639 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
a183a15f
JS		 7640 else {
7641 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
da0436e9 7642 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
a183a15f 7643 }
da0436e9
JS		 7644 if (rc == MBX_TIMEOUT)
7645 break;
7646 /* Check return status */
7647 shdr = (union lpfc_sli4_cfg_shdr *)
7648 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7649 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7650 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7651 &shdr->response);
7652 if (shdr_status || shdr_add_status || rc) {
7653 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7654 "2520 NOP mailbox command failed "
7655 "status x%x add_status x%x mbx "
7656 "status x%x\n", shdr_status,
7657 shdr_add_status, rc);
7658 break;
7659 }
7660 }
7661
7662 if (rc != MBX_TIMEOUT)
7663 mempool_free(mboxq, phba->mbox_mem_pool);
7664
7665 return cmdsent;
7666}
7667
da0436e9
JS		 7668/**
7669 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7670 * @phba: pointer to lpfc hba data structure.
7671 *
7672 * This routine is invoked to set up the PCI device memory space for device
7673 * with SLI-4 interface spec.
7674 *
7675 * Return codes
af901ca1 7676 * 0 - successful
da0436e9
JS		 7677 * other values - error
7678 **/
7679static int
7680lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
7681{
7682 struct pci_dev *pdev;
7683 unsigned long bar0map_len, bar1map_len, bar2map_len;
7684 int error = -ENODEV;
2fcee4bf 7685 uint32_t if_type;
da0436e9
JS		 7686
7687 /* Obtain PCI device reference */
7688 if (!phba->pcidev)
7689 return error;
7690 else
7691 pdev = phba->pcidev;
7692
7693 /* Set the device DMA mask size */
8e68597d
MR		 7694 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7695 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7696 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7697 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
da0436e9 7698 return error;
8e68597d
MR		 7699 }
7700 }
da0436e9 7701
2fcee4bf
JS		 7702 /*
7703 * The BARs and register set definitions and offset locations are
7704 * dependent on the if_type.
7705 */
7706 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7707 &phba->sli4_hba.sli_intf.word0)) {
7708 return error;
7709 }
7710
7711 /* There is no SLI3 failback for SLI4 devices. */
7712 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7713 LPFC_SLI_INTF_VALID) {
7714 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7715 "2894 SLI_INTF reg contents invalid "
7716 "sli_intf reg 0x%x\n",
7717 phba->sli4_hba.sli_intf.word0);
7718 return error;
7719 }
7720
7721 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7722 /*
7723 * Get the bus address of SLI4 device Bar regions and the
7724 * number of bytes required by each mapping. The mapping of the
7725 * particular PCI BARs regions is dependent on the type of
7726 * SLI4 device.
da0436e9 7727 */
1dfb5a47
JS		 7728 if (pci_resource_start(pdev, 0)) {
7729 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7730 bar0map_len = pci_resource_len(pdev, 0);
2fcee4bf
JS		 7731
7732 /*
7733 * Map SLI4 PCI Config Space Register base to a kernel virtual
7734 * addr
7735 */
7736 phba->sli4_hba.conf_regs_memmap_p =
7737 ioremap(phba->pci_bar0_map, bar0map_len);
7738 if (!phba->sli4_hba.conf_regs_memmap_p) {
7739 dev_printk(KERN_ERR, &pdev->dev,
7740 "ioremap failed for SLI4 PCI config "
7741 "registers.\n");
7742 goto out;
7743 }
7744 /* Set up BAR0 PCI config space register memory map */
7745 lpfc_sli4_bar0_register_memmap(phba, if_type);
1dfb5a47
JS		 7746 } else {
7747 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7748 bar0map_len = pci_resource_len(pdev, 1);
2fcee4bf
JS		 7749 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7750 dev_printk(KERN_ERR, &pdev->dev,
7751 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7752 goto out;
7753 }
7754 phba->sli4_hba.conf_regs_memmap_p =
da0436e9 7755 ioremap(phba->pci_bar0_map, bar0map_len);
2fcee4bf
JS		 7756 if (!phba->sli4_hba.conf_regs_memmap_p) {
7757 dev_printk(KERN_ERR, &pdev->dev,
7758 "ioremap failed for SLI4 PCI config "
7759 "registers.\n");
7760 goto out;
7761 }
7762 lpfc_sli4_bar0_register_memmap(phba, if_type);
da0436e9
JS		 7763 }
7764
c31098ce
JS		 7765 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7766 (pci_resource_start(pdev, 2))) {
2fcee4bf
JS		 7767 /*
7768 * Map SLI4 if type 0 HBA Control Register base to a kernel
7769 * virtual address and setup the registers.
7770 */
7771 phba->pci_bar1_map = pci_resource_start(pdev, 2);
7772 bar1map_len = pci_resource_len(pdev, 2);
7773 phba->sli4_hba.ctrl_regs_memmap_p =
da0436e9 7774 ioremap(phba->pci_bar1_map, bar1map_len);
2fcee4bf
JS		 7775 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7776 dev_printk(KERN_ERR, &pdev->dev,
da0436e9 7777 "ioremap failed for SLI4 HBA control registers.\n");
2fcee4bf
JS		 7778 goto out_iounmap_conf;
7779 }
7780 lpfc_sli4_bar1_register_memmap(phba);
da0436e9
JS		 7781 }
7782
c31098ce
JS		 7783 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7784 (pci_resource_start(pdev, 4))) {
2fcee4bf
JS		 7785 /*
7786 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7787 * virtual address and setup the registers.
7788 */
7789 phba->pci_bar2_map = pci_resource_start(pdev, 4);
7790 bar2map_len = pci_resource_len(pdev, 4);
7791 phba->sli4_hba.drbl_regs_memmap_p =
da0436e9 7792 ioremap(phba->pci_bar2_map, bar2map_len);
2fcee4bf
JS		 7793 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7794 dev_printk(KERN_ERR, &pdev->dev,
da0436e9 7795 "ioremap failed for SLI4 HBA doorbell registers.\n");
2fcee4bf
JS		 7796 goto out_iounmap_ctrl;
7797 }
7798 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7799 if (error)
7800 goto out_iounmap_all;
da0436e9
JS		 7801 }
7802
da0436e9
JS		 7803 return 0;
7804
7805out_iounmap_all:
7806 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7807out_iounmap_ctrl:
7808 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7809out_iounmap_conf:
7810 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7811out:
7812 return error;
7813}
7814
7815/**
7816 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7817 * @phba: pointer to lpfc hba data structure.
7818 *
7819 * This routine is invoked to unset the PCI device memory space for device
7820 * with SLI-4 interface spec.
7821 **/
7822static void
7823lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
7824{
2e90f4b5
JS		 7825 uint32_t if_type;
7826 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
da0436e9 7827
2e90f4b5
JS		 7828 switch (if_type) {
7829 case LPFC_SLI_INTF_IF_TYPE_0:
7830 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7831 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7832 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7833 break;
7834 case LPFC_SLI_INTF_IF_TYPE_2:
7835 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7836 break;
7837 case LPFC_SLI_INTF_IF_TYPE_1:
7838 default:
7839 dev_printk(KERN_ERR, &phba->pcidev->dev,
7840 "FATAL - unsupported SLI4 interface type - %d\n",
7841 if_type);
7842 break;
7843 }
da0436e9
JS		 7844}
7845
7846/**
7847 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7848 * @phba: pointer to lpfc hba data structure.
7849 *
7850 * This routine is invoked to enable the MSI-X interrupt vectors to device
7851 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7852 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7853 * invoked, enables either all or nothing, depending on the current
7854 * availability of PCI vector resources. The device driver is responsible
7855 * for calling the individual request_irq() to register each MSI-X vector
7856 * with a interrupt handler, which is done in this function. Note that
7857 * later when device is unloading, the driver should always call free_irq()
7858 * on all MSI-X vectors it has done request_irq() on before calling
7859 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7860 * will be left with MSI-X enabled and leaks its vectors.
7861 *
7862 * Return codes
af901ca1 7863 * 0 - successful
da0436e9
JS		 7864 * other values - error
7865 **/
7866static int
7867lpfc_sli_enable_msix(struct lpfc_hba *phba)
7868{
7869 int rc, i;
7870 LPFC_MBOXQ_t *pmb;
7871
7872 /* Set up MSI-X multi-message vectors */
7873 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7874 phba->msix_entries[i].entry = i;
7875
7876 /* Configure MSI-X capability structure */
7877 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
7878 ARRAY_SIZE(phba->msix_entries));
7879 if (rc) {
7880 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7881 "0420 PCI enable MSI-X failed (%d)\n", rc);
7882 goto msi_fail_out;
7883 }
7884 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7885 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7886 "0477 MSI-X entry[%d]: vector=x%x "
7887 "message=%d\n", i,
7888 phba->msix_entries[i].vector,
7889 phba->msix_entries[i].entry);
7890 /*
7891 * Assign MSI-X vectors to interrupt handlers
7892 */
7893
7894 /* vector-0 is associated to slow-path handler */
7895 rc = request_irq(phba->msix_entries[0].vector,
7896 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
7897 LPFC_SP_DRIVER_HANDLER_NAME, phba);
7898 if (rc) {
7899 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7900 "0421 MSI-X slow-path request_irq failed "
7901 "(%d)\n", rc);
7902 goto msi_fail_out;
7903 }
7904
7905 /* vector-1 is associated to fast-path handler */
7906 rc = request_irq(phba->msix_entries[1].vector,
7907 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
7908 LPFC_FP_DRIVER_HANDLER_NAME, phba);
7909
7910 if (rc) {
7911 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7912 "0429 MSI-X fast-path request_irq failed "
7913 "(%d)\n", rc);
7914 goto irq_fail_out;
7915 }
7916
7917 /*
7918 * Configure HBA MSI-X attention conditions to messages
7919 */
7920 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7921
7922 if (!pmb) {
7923 rc = -ENOMEM;
7924 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7925 "0474 Unable to allocate memory for issuing "
7926 "MBOX_CONFIG_MSI command\n");
7927 goto mem_fail_out;
7928 }
7929 rc = lpfc_config_msi(phba, pmb);
7930 if (rc)
7931 goto mbx_fail_out;
7932 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7933 if (rc != MBX_SUCCESS) {
7934 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
7935 "0351 Config MSI mailbox command failed, "
7936 "mbxCmd x%x, mbxStatus x%x\n",
7937 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
7938 goto mbx_fail_out;
7939 }
7940
7941 /* Free memory allocated for mailbox command */
7942 mempool_free(pmb, phba->mbox_mem_pool);
7943 return rc;
7944
7945mbx_fail_out:
7946 /* Free memory allocated for mailbox command */
7947 mempool_free(pmb, phba->mbox_mem_pool);
7948
7949mem_fail_out:
7950 /* free the irq already requested */
7951 free_irq(phba->msix_entries[1].vector, phba);
7952
7953irq_fail_out:
7954 /* free the irq already requested */
7955 free_irq(phba->msix_entries[0].vector, phba);
7956
7957msi_fail_out:
7958 /* Unconfigure MSI-X capability structure */
7959 pci_disable_msix(phba->pcidev);
7960 return rc;
7961}
7962
7963/**
7964 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
7965 * @phba: pointer to lpfc hba data structure.
7966 *
7967 * This routine is invoked to release the MSI-X vectors and then disable the
7968 * MSI-X interrupt mode to device with SLI-3 interface spec.
7969 **/
7970static void
7971lpfc_sli_disable_msix(struct lpfc_hba *phba)
7972{
7973 int i;
7974
7975 /* Free up MSI-X multi-message vectors */
7976 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7977 free_irq(phba->msix_entries[i].vector, phba);
7978 /* Disable MSI-X */
7979 pci_disable_msix(phba->pcidev);
7980
7981 return;
7982}
7983
7984/**
7985 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
7986 * @phba: pointer to lpfc hba data structure.
7987 *
7988 * This routine is invoked to enable the MSI interrupt mode to device with
7989 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
7990 * enable the MSI vector. The device driver is responsible for calling the
7991 * request_irq() to register MSI vector with a interrupt the handler, which
7992 * is done in this function.
7993 *
7994 * Return codes
af901ca1 7995 * 0 - successful
da0436e9
JS		 7996 * other values - error
7997 */
7998static int
7999lpfc_sli_enable_msi(struct lpfc_hba *phba)
8000{
8001 int rc;
8002
8003 rc = pci_enable_msi(phba->pcidev);
8004 if (!rc)
8005 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8006 "0462 PCI enable MSI mode success.\n");
8007 else {
8008 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8009 "0471 PCI enable MSI mode failed (%d)\n", rc);
8010 return rc;
8011 }
8012
8013 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8014 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8015 if (rc) {
8016 pci_disable_msi(phba->pcidev);
8017 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8018 "0478 MSI request_irq failed (%d)\n", rc);
8019 }
8020 return rc;
8021}
8022
8023/**
8024 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8025 * @phba: pointer to lpfc hba data structure.
8026 *
8027 * This routine is invoked to disable the MSI interrupt mode to device with
8028 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8029 * done request_irq() on before calling pci_disable_msi(). Failure to do so
8030 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8031 * its vector.
8032 */
8033static void
8034lpfc_sli_disable_msi(struct lpfc_hba *phba)
8035{
8036 free_irq(phba->pcidev->irq, phba);
8037 pci_disable_msi(phba->pcidev);
8038 return;
8039}
8040
8041/**
8042 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8043 * @phba: pointer to lpfc hba data structure.
8044 *
8045 * This routine is invoked to enable device interrupt and associate driver's
8046 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8047 * spec. Depends on the interrupt mode configured to the driver, the driver
8048 * will try to fallback from the configured interrupt mode to an interrupt
8049 * mode which is supported by the platform, kernel, and device in the order
8050 * of:
8051 * MSI-X -> MSI -> IRQ.
8052 *
8053 * Return codes
af901ca1 8054 * 0 - successful
da0436e9
JS		 8055 * other values - error
8056 **/
8057static uint32_t
8058lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8059{
8060 uint32_t intr_mode = LPFC_INTR_ERROR;
8061 int retval;
8062
8063 if (cfg_mode == 2) {
8064 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8065 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8066 if (!retval) {
8067 /* Now, try to enable MSI-X interrupt mode */
8068 retval = lpfc_sli_enable_msix(phba);
8069 if (!retval) {
8070 /* Indicate initialization to MSI-X mode */
8071 phba->intr_type = MSIX;
8072 intr_mode = 2;
8073 }
8074 }
8075 }
8076
8077 /* Fallback to MSI if MSI-X initialization failed */
8078 if (cfg_mode >= 1 && phba->intr_type == NONE) {
8079 retval = lpfc_sli_enable_msi(phba);
8080 if (!retval) {
8081 /* Indicate initialization to MSI mode */
8082 phba->intr_type = MSI;
8083 intr_mode = 1;
8084 }
8085 }
8086
8087 /* Fallback to INTx if both MSI-X/MSI initalization failed */
8088 if (phba->intr_type == NONE) {
8089 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8090 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8091 if (!retval) {
8092 /* Indicate initialization to INTx mode */
8093 phba->intr_type = INTx;
8094 intr_mode = 0;
8095 }
8096 }
8097 return intr_mode;
8098}
8099
8100/**
8101 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8102 * @phba: pointer to lpfc hba data structure.
8103 *
8104 * This routine is invoked to disable device interrupt and disassociate the
8105 * driver's interrupt handler(s) from interrupt vector(s) to device with
8106 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8107 * release the interrupt vector(s) for the message signaled interrupt.
8108 **/
8109static void
8110lpfc_sli_disable_intr(struct lpfc_hba *phba)
8111{
8112 /* Disable the currently initialized interrupt mode */
8113 if (phba->intr_type == MSIX)
8114 lpfc_sli_disable_msix(phba);
8115 else if (phba->intr_type == MSI)
8116 lpfc_sli_disable_msi(phba);
8117 else if (phba->intr_type == INTx)
8118 free_irq(phba->pcidev->irq, phba);
8119
8120 /* Reset interrupt management states */
8121 phba->intr_type = NONE;
8122 phba->sli.slistat.sli_intr = 0;
8123
8124 return;
8125}
8126
8127/**
8128 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8129 * @phba: pointer to lpfc hba data structure.
8130 *
8131 * This routine is invoked to enable the MSI-X interrupt vectors to device
8132 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
8133 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
8134 * enables either all or nothing, depending on the current availability of
8135 * PCI vector resources. The device driver is responsible for calling the
8136 * individual request_irq() to register each MSI-X vector with a interrupt
8137 * handler, which is done in this function. Note that later when device is
8138 * unloading, the driver should always call free_irq() on all MSI-X vectors
8139 * it has done request_irq() on before calling pci_disable_msix(). Failure
8140 * to do so results in a BUG_ON() and a device will be left with MSI-X
8141 * enabled and leaks its vectors.
8142 *
8143 * Return codes
af901ca1 8144 * 0 - successful
da0436e9
JS		 8145 * other values - error
8146 **/
8147static int
8148lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8149{
75baf696 8150 int vectors, rc, index;
da0436e9
JS		 8151
8152 /* Set up MSI-X multi-message vectors */
8153 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
8154 phba->sli4_hba.msix_entries[index].entry = index;
8155
8156 /* Configure MSI-X capability structure */
75baf696
JS		 8157 vectors = phba->sli4_hba.cfg_eqn;
8158enable_msix_vectors:
da0436e9 8159 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
75baf696
JS		 8160 vectors);
8161 if (rc > 1) {
8162 vectors = rc;
8163 goto enable_msix_vectors;
8164 } else if (rc) {
da0436e9
JS		 8165 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8166 "0484 PCI enable MSI-X failed (%d)\n", rc);
8167 goto msi_fail_out;
8168 }
75baf696 8169
da0436e9 8170 /* Log MSI-X vector assignment */
75baf696 8171 for (index = 0; index < vectors; index++)
da0436e9
JS		 8172 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8173 "0489 MSI-X entry[%d]: vector=x%x "
8174 "message=%d\n", index,
8175 phba->sli4_hba.msix_entries[index].vector,
8176 phba->sli4_hba.msix_entries[index].entry);
8177 /*
8178 * Assign MSI-X vectors to interrupt handlers
8179 */
0558056c
JS		 8180 if (vectors > 1)
8181 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
8182 &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
8183 LPFC_SP_DRIVER_HANDLER_NAME, phba);
8184 else
8185 /* All Interrupts need to be handled by one EQ */
8186 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
8187 &lpfc_sli4_intr_handler, IRQF_SHARED,
8188 LPFC_DRIVER_NAME, phba);
da0436e9
JS		 8189 if (rc) {
8190 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8191 "0485 MSI-X slow-path request_irq failed "
8192 "(%d)\n", rc);
8193 goto msi_fail_out;
8194 }
8195
8196 /* The rest of the vector(s) are associated to fast-path handler(s) */
75baf696 8197 for (index = 1; index < vectors; index++) {
da0436e9
JS		 8198 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
8199 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
8200 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
8201 &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
8202 LPFC_FP_DRIVER_HANDLER_NAME,
8203 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
8204 if (rc) {
8205 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8206 "0486 MSI-X fast-path (%d) "
8207 "request_irq failed (%d)\n", index, rc);
8208 goto cfg_fail_out;
8209 }
8210 }
75baf696 8211 phba->sli4_hba.msix_vec_nr = vectors;
da0436e9
JS		 8212
8213 return rc;
8214
8215cfg_fail_out:
8216 /* free the irq already requested */
8217 for (--index; index >= 1; index--)
8218 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
8219 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
8220
8221 /* free the irq already requested */
8222 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
8223
8224msi_fail_out:
8225 /* Unconfigure MSI-X capability structure */
8226 pci_disable_msix(phba->pcidev);
8227 return rc;
8228}
8229
8230/**
8231 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
8232 * @phba: pointer to lpfc hba data structure.
8233 *
8234 * This routine is invoked to release the MSI-X vectors and then disable the
8235 * MSI-X interrupt mode to device with SLI-4 interface spec.
8236 **/
8237static void
8238lpfc_sli4_disable_msix(struct lpfc_hba *phba)
8239{
8240 int index;
8241
8242 /* Free up MSI-X multi-message vectors */
8243 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
8244
75baf696 8245 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
da0436e9
JS		 8246 free_irq(phba->sli4_hba.msix_entries[index].vector,
8247 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
75baf696 8248
da0436e9
JS		 8249 /* Disable MSI-X */
8250 pci_disable_msix(phba->pcidev);
8251
8252 return;
8253}
8254
8255/**
8256 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
8257 * @phba: pointer to lpfc hba data structure.
8258 *
8259 * This routine is invoked to enable the MSI interrupt mode to device with
8260 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
8261 * to enable the MSI vector. The device driver is responsible for calling
8262 * the request_irq() to register MSI vector with a interrupt the handler,
8263 * which is done in this function.
8264 *
8265 * Return codes
af901ca1 8266 * 0 - successful
da0436e9
JS		 8267 * other values - error
8268 **/
8269static int
8270lpfc_sli4_enable_msi(struct lpfc_hba *phba)
8271{
8272 int rc, index;
8273
8274 rc = pci_enable_msi(phba->pcidev);
8275 if (!rc)
8276 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8277 "0487 PCI enable MSI mode success.\n");
8278 else {
8279 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8280 "0488 PCI enable MSI mode failed (%d)\n", rc);
8281 return rc;
8282 }
8283
8284 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8285 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8286 if (rc) {
8287 pci_disable_msi(phba->pcidev);
8288 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8289 "0490 MSI request_irq failed (%d)\n", rc);
75baf696 8290 return rc;
da0436e9
JS		 8291 }
8292
8293 for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
8294 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8295 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8296 }
8297
75baf696 8298 return 0;
da0436e9
JS		 8299}
8300
8301/**
8302 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
8303 * @phba: pointer to lpfc hba data structure.
8304 *
8305 * This routine is invoked to disable the MSI interrupt mode to device with
8306 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
8307 * done request_irq() on before calling pci_disable_msi(). Failure to do so
8308 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8309 * its vector.
8310 **/
8311static void
8312lpfc_sli4_disable_msi(struct lpfc_hba *phba)
8313{
8314 free_irq(phba->pcidev->irq, phba);
8315 pci_disable_msi(phba->pcidev);
8316 return;
8317}
8318
8319/**
8320 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
8321 * @phba: pointer to lpfc hba data structure.
8322 *
8323 * This routine is invoked to enable device interrupt and associate driver's
8324 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
8325 * interface spec. Depends on the interrupt mode configured to the driver,
8326 * the driver will try to fallback from the configured interrupt mode to an
8327 * interrupt mode which is supported by the platform, kernel, and device in
8328 * the order of:
8329 * MSI-X -> MSI -> IRQ.
8330 *
8331 * Return codes
af901ca1 8332 * 0 - successful
da0436e9
JS		 8333 * other values - error
8334 **/
8335static uint32_t
8336lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8337{
8338 uint32_t intr_mode = LPFC_INTR_ERROR;
8339 int retval, index;
8340
8341 if (cfg_mode == 2) {
8342 /* Preparation before conf_msi mbox cmd */
8343 retval = 0;
8344 if (!retval) {
8345 /* Now, try to enable MSI-X interrupt mode */
8346 retval = lpfc_sli4_enable_msix(phba);
8347 if (!retval) {
8348 /* Indicate initialization to MSI-X mode */
8349 phba->intr_type = MSIX;
8350 intr_mode = 2;
8351 }
8352 }
8353 }
8354
8355 /* Fallback to MSI if MSI-X initialization failed */
8356 if (cfg_mode >= 1 && phba->intr_type == NONE) {
8357 retval = lpfc_sli4_enable_msi(phba);
8358 if (!retval) {
8359 /* Indicate initialization to MSI mode */
8360 phba->intr_type = MSI;
8361 intr_mode = 1;
8362 }
8363 }
8364
8365 /* Fallback to INTx if both MSI-X/MSI initalization failed */
8366 if (phba->intr_type == NONE) {
8367 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8368 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8369 if (!retval) {
8370 /* Indicate initialization to INTx mode */
8371 phba->intr_type = INTx;
8372 intr_mode = 0;
8373 for (index = 0; index < phba->cfg_fcp_eq_count;
8374 index++) {
8375 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8376 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8377 }
8378 }
8379 }
8380 return intr_mode;
8381}
8382
8383/**
8384 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
8385 * @phba: pointer to lpfc hba data structure.
8386 *
8387 * This routine is invoked to disable device interrupt and disassociate
8388 * the driver's interrupt handler(s) from interrupt vector(s) to device
8389 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
8390 * will release the interrupt vector(s) for the message signaled interrupt.
8391 **/
8392static void
8393lpfc_sli4_disable_intr(struct lpfc_hba *phba)
8394{
8395 /* Disable the currently initialized interrupt mode */
8396 if (phba->intr_type == MSIX)
8397 lpfc_sli4_disable_msix(phba);
8398 else if (phba->intr_type == MSI)
8399 lpfc_sli4_disable_msi(phba);
8400 else if (phba->intr_type == INTx)
8401 free_irq(phba->pcidev->irq, phba);
8402
8403 /* Reset interrupt management states */
8404 phba->intr_type = NONE;
8405 phba->sli.slistat.sli_intr = 0;
8406
8407 return;
8408}
8409
8410/**
8411 * lpfc_unset_hba - Unset SLI3 hba device initialization
8412 * @phba: pointer to lpfc hba data structure.
8413 *
8414 * This routine is invoked to unset the HBA device initialization steps to
8415 * a device with SLI-3 interface spec.
8416 **/
8417static void
8418lpfc_unset_hba(struct lpfc_hba *phba)
8419{
8420 struct lpfc_vport *vport = phba->pport;
8421 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8422
8423 spin_lock_irq(shost->host_lock);
8424 vport->load_flag |= FC_UNLOADING;
8425 spin_unlock_irq(shost->host_lock);
8426
72859909
JS		 8427 kfree(phba->vpi_bmask);
8428 kfree(phba->vpi_ids);
8429
da0436e9
JS		 8430 lpfc_stop_hba_timers(phba);
8431
8432 phba->pport->work_port_events = 0;
8433
8434 lpfc_sli_hba_down(phba);
8435
8436 lpfc_sli_brdrestart(phba);
8437
8438 lpfc_sli_disable_intr(phba);
8439
8440 return;
8441}
8442
8443/**
8444 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
8445 * @phba: pointer to lpfc hba data structure.
8446 *
8447 * This routine is invoked to unset the HBA device initialization steps to
8448 * a device with SLI-4 interface spec.
8449 **/
8450static void
8451lpfc_sli4_unset_hba(struct lpfc_hba *phba)
8452{
8453 struct lpfc_vport *vport = phba->pport;
8454 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8455
8456 spin_lock_irq(shost->host_lock);
8457 vport->load_flag |= FC_UNLOADING;
8458 spin_unlock_irq(shost->host_lock);
8459
8460 phba->pport->work_port_events = 0;
8461
3677a3a7
JS		 8462 /* Stop the SLI4 device port */
8463 lpfc_stop_port(phba);
da0436e9
JS		 8464
8465 lpfc_sli4_disable_intr(phba);
8466
3677a3a7
JS		 8467 /* Reset SLI4 HBA FCoE function */
8468 lpfc_pci_function_reset(phba);
5350d872 8469 lpfc_sli4_queue_destroy(phba);
3677a3a7 8470
da0436e9
JS		 8471 return;
8472}
8473
5af5eee7
JS		 8474/**
8475 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
8476 * @phba: Pointer to HBA context object.
8477 *
8478 * This function is called in the SLI4 code path to wait for completion
8479 * of device's XRIs exchange busy. It will check the XRI exchange busy
8480 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
8481 * that, it will check the XRI exchange busy on outstanding FCP and ELS
8482 * I/Os every 30 seconds, log error message, and wait forever. Only when
8483 * all XRI exchange busy complete, the driver unload shall proceed with
8484 * invoking the function reset ioctl mailbox command to the CNA and the
8485 * the rest of the driver unload resource release.
8486 **/
8487static void
8488lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
8489{
8490 int wait_time = 0;
8491 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8492 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8493
8494 while (!fcp_xri_cmpl || !els_xri_cmpl) {
8495 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
8496 if (!fcp_xri_cmpl)
8497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8498 "2877 FCP XRI exchange busy "
8499 "wait time: %d seconds.\n",
8500 wait_time/1000);
8501 if (!els_xri_cmpl)
8502 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8503 "2878 ELS XRI exchange busy "
8504 "wait time: %d seconds.\n",
8505 wait_time/1000);
8506 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
8507 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
8508 } else {
8509 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
8510 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
8511 }
8512 fcp_xri_cmpl =
8513 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8514 els_xri_cmpl =
8515 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8516 }
8517}
8518
da0436e9
JS		 8519/**
8520 * lpfc_sli4_hba_unset - Unset the fcoe hba
8521 * @phba: Pointer to HBA context object.
8522 *
8523 * This function is called in the SLI4 code path to reset the HBA's FCoE
8524 * function. The caller is not required to hold any lock. This routine
8525 * issues PCI function reset mailbox command to reset the FCoE function.
8526 * At the end of the function, it calls lpfc_hba_down_post function to
8527 * free any pending commands.
8528 **/
8529static void
8530lpfc_sli4_hba_unset(struct lpfc_hba *phba)
8531{
8532 int wait_cnt = 0;
8533 LPFC_MBOXQ_t *mboxq;
912e3acd 8534 struct pci_dev *pdev = phba->pcidev;
da0436e9
JS		 8535
8536 lpfc_stop_hba_timers(phba);
8537 phba->sli4_hba.intr_enable = 0;
8538
8539 /*
8540 * Gracefully wait out the potential current outstanding asynchronous
8541 * mailbox command.
8542 */
8543
8544 /* First, block any pending async mailbox command from posted */
8545 spin_lock_irq(&phba->hbalock);
8546 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8547 spin_unlock_irq(&phba->hbalock);
8548 /* Now, trying to wait it out if we can */
8549 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8550 msleep(10);
8551 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
8552 break;
8553 }
8554 /* Forcefully release the outstanding mailbox command if timed out */
8555 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8556 spin_lock_irq(&phba->hbalock);
8557 mboxq = phba->sli.mbox_active;
8558 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8559 __lpfc_mbox_cmpl_put(phba, mboxq);
8560 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8561 phba->sli.mbox_active = NULL;
8562 spin_unlock_irq(&phba->hbalock);
8563 }
8564
5af5eee7
JS		 8565 /* Abort all iocbs associated with the hba */
8566 lpfc_sli_hba_iocb_abort(phba);
8567
8568 /* Wait for completion of device XRI exchange busy */
8569 lpfc_sli4_xri_exchange_busy_wait(phba);
8570
da0436e9
JS		 8571 /* Disable PCI subsystem interrupt */
8572 lpfc_sli4_disable_intr(phba);
8573
912e3acd
JS		 8574 /* Disable SR-IOV if enabled */
8575 if (phba->cfg_sriov_nr_virtfn)
8576 pci_disable_sriov(pdev);
8577
da0436e9
JS		 8578 /* Stop kthread signal shall trigger work_done one more time */
8579 kthread_stop(phba->worker_thread);
8580
3677a3a7
JS		 8581 /* Reset SLI4 HBA FCoE function */
8582 lpfc_pci_function_reset(phba);
5350d872 8583 lpfc_sli4_queue_destroy(phba);
3677a3a7 8584
da0436e9
JS		 8585 /* Stop the SLI4 device port */
8586 phba->pport->work_port_events = 0;
8587}
8588
28baac74
JS		 8589 /**
8590 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
8591 * @phba: Pointer to HBA context object.
8592 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8593 *
8594 * This function is called in the SLI4 code path to read the port's
8595 * sli4 capabilities.
8596 *
8597 * This function may be be called from any context that can block-wait
8598 * for the completion. The expectation is that this routine is called
8599 * typically from probe_one or from the online routine.
8600 **/
8601int
8602lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8603{
8604 int rc;
8605 struct lpfc_mqe *mqe;
8606 struct lpfc_pc_sli4_params *sli4_params;
8607 uint32_t mbox_tmo;
8608
8609 rc = 0;
8610 mqe = &mboxq->u.mqe;
8611
8612 /* Read the port's SLI4 Parameters port capabilities */
fedd3b7b 8613 lpfc_pc_sli4_params(mboxq);
28baac74
JS		 8614 if (!phba->sli4_hba.intr_enable)
8615 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8616 else {
a183a15f 8617 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
28baac74
JS		 8618 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8619 }
8620
8621 if (unlikely(rc))
8622 return 1;
8623
8624 sli4_params = &phba->sli4_hba.pc_sli4_params;
8625 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
8626 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
8627 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
8628 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
8629 &mqe->un.sli4_params);
8630 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
8631 &mqe->un.sli4_params);
8632 sli4_params->proto_types = mqe->un.sli4_params.word3;
8633 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
8634 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
8635 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
8636 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
8637 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
8638 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
8639 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
8640 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
8641 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
8642 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
8643 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
8644 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
8645 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
8646 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
8647 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
8648 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
8649 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
8650 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
8651 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
8652 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
0558056c
JS		 8653
8654 /* Make sure that sge_supp_len can be handled by the driver */
8655 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8656 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8657
28baac74
JS		 8658 return rc;
8659}
8660
fedd3b7b
JS		 8661/**
8662 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
8663 * @phba: Pointer to HBA context object.
8664 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8665 *
8666 * This function is called in the SLI4 code path to read the port's
8667 * sli4 capabilities.
8668 *
8669 * This function may be be called from any context that can block-wait
8670 * for the completion. The expectation is that this routine is called
8671 * typically from probe_one or from the online routine.
8672 **/
8673int
8674lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8675{
8676 int rc;
8677 struct lpfc_mqe *mqe = &mboxq->u.mqe;
8678 struct lpfc_pc_sli4_params *sli4_params;
a183a15f 8679 uint32_t mbox_tmo;
fedd3b7b
JS		 8680 int length;
8681 struct lpfc_sli4_parameters *mbx_sli4_parameters;
8682
6d368e53
JS		 8683 /*
8684 * By default, the driver assumes the SLI4 port requires RPI
8685 * header postings. The SLI4_PARAM response will correct this
8686 * assumption.
8687 */
8688 phba->sli4_hba.rpi_hdrs_in_use = 1;
8689
fedd3b7b
JS		 8690 /* Read the port's SLI4 Config Parameters */
8691 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
8692 sizeof(struct lpfc_sli4_cfg_mhdr));
8693 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8694 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
8695 length, LPFC_SLI4_MBX_EMBED);
8696 if (!phba->sli4_hba.intr_enable)
8697 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
a183a15f
JS		 8698 else {
8699 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
8700 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8701 }
fedd3b7b
JS		 8702 if (unlikely(rc))
8703 return rc;
8704 sli4_params = &phba->sli4_hba.pc_sli4_params;
8705 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
8706 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
8707 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
8708 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
8709 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
8710 mbx_sli4_parameters);
8711 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
8712 mbx_sli4_parameters);
8713 if (bf_get(cfg_phwq, mbx_sli4_parameters))
8714 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
8715 else
8716 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
8717 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
8718 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
8719 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
8720 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
8721 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
8722 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
8723 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
8724 mbx_sli4_parameters);
8725 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
8726 mbx_sli4_parameters);
6d368e53
JS		 8727 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
8728 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
0558056c
JS		 8729
8730 /* Make sure that sge_supp_len can be handled by the driver */
8731 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8732 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8733
fedd3b7b
JS		 8734 return 0;
8735}
8736
da0436e9
JS		 8737/**
8738 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
8739 * @pdev: pointer to PCI device
8740 * @pid: pointer to PCI device identifier
8741 *
8742 * This routine is to be called to attach a device with SLI-3 interface spec
8743 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8744 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8745 * information of the device and driver to see if the driver state that it can
8746 * support this kind of device. If the match is successful, the driver core
8747 * invokes this routine. If this routine determines it can claim the HBA, it
8748 * does all the initialization that it needs to do to handle the HBA properly.
8749 *
8750 * Return code
8751 * 0 - driver can claim the device
8752 * negative value - driver can not claim the device
8753 **/
8754static int __devinit
8755lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
8756{
8757 struct lpfc_hba *phba;
8758 struct lpfc_vport *vport = NULL;
6669f9bb 8759 struct Scsi_Host *shost = NULL;
da0436e9
JS		 8760 int error;
8761 uint32_t cfg_mode, intr_mode;
8762
8763 /* Allocate memory for HBA structure */
8764 phba = lpfc_hba_alloc(pdev);
8765 if (!phba)
8766 return -ENOMEM;
8767
8768 /* Perform generic PCI device enabling operation */
8769 error = lpfc_enable_pci_dev(phba);
079b5c91 8770 if (error)
da0436e9 8771 goto out_free_phba;
da0436e9
JS		 8772
8773 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
8774 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
8775 if (error)
8776 goto out_disable_pci_dev;
8777
8778 /* Set up SLI-3 specific device PCI memory space */
8779 error = lpfc_sli_pci_mem_setup(phba);
8780 if (error) {
8781 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8782 "1402 Failed to set up pci memory space.\n");
8783 goto out_disable_pci_dev;
8784 }
8785
8786 /* Set up phase-1 common device driver resources */
8787 error = lpfc_setup_driver_resource_phase1(phba);
8788 if (error) {
8789 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8790 "1403 Failed to set up driver resource.\n");
8791 goto out_unset_pci_mem_s3;
8792 }
8793
8794 /* Set up SLI-3 specific device driver resources */
8795 error = lpfc_sli_driver_resource_setup(phba);
8796 if (error) {
8797 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8798 "1404 Failed to set up driver resource.\n");
8799 goto out_unset_pci_mem_s3;
8800 }
8801
8802 /* Initialize and populate the iocb list per host */
8803 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
8804 if (error) {
8805 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8806 "1405 Failed to initialize iocb list.\n");
8807 goto out_unset_driver_resource_s3;
8808 }
8809
8810 /* Set up common device driver resources */
8811 error = lpfc_setup_driver_resource_phase2(phba);
8812 if (error) {
8813 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8814 "1406 Failed to set up driver resource.\n");
8815 goto out_free_iocb_list;
8816 }
8817
079b5c91
JS		 8818 /* Get the default values for Model Name and Description */
8819 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
8820
da0436e9
JS		 8821 /* Create SCSI host to the physical port */
8822 error = lpfc_create_shost(phba);
8823 if (error) {
8824 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8825 "1407 Failed to create scsi host.\n");
8826 goto out_unset_driver_resource;
8827 }
8828
8829 /* Configure sysfs attributes */
8830 vport = phba->pport;
8831 error = lpfc_alloc_sysfs_attr(vport);
8832 if (error) {
8833 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8834 "1476 Failed to allocate sysfs attr\n");
8835 goto out_destroy_shost;
8836 }
8837
6669f9bb 8838 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
da0436e9
JS		 8839 /* Now, trying to enable interrupt and bring up the device */
8840 cfg_mode = phba->cfg_use_msi;
8841 while (true) {
8842 /* Put device to a known state before enabling interrupt */
8843 lpfc_stop_port(phba);
8844 /* Configure and enable interrupt */
8845 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
8846 if (intr_mode == LPFC_INTR_ERROR) {
8847 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8848 "0431 Failed to enable interrupt.\n");
8849 error = -ENODEV;
8850 goto out_free_sysfs_attr;
8851 }
8852 /* SLI-3 HBA setup */
8853 if (lpfc_sli_hba_setup(phba)) {
8854 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8855 "1477 Failed to set up hba\n");
8856 error = -ENODEV;
8857 goto out_remove_device;
8858 }
8859
8860 /* Wait 50ms for the interrupts of previous mailbox commands */
8861 msleep(50);
8862 /* Check active interrupts on message signaled interrupts */
8863 if (intr_mode == 0 ||
8864 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
8865 /* Log the current active interrupt mode */
8866 phba->intr_mode = intr_mode;
8867 lpfc_log_intr_mode(phba, intr_mode);
8868 break;
8869 } else {
8870 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8871 "0447 Configure interrupt mode (%d) "
8872 "failed active interrupt test.\n",
8873 intr_mode);
8874 /* Disable the current interrupt mode */
8875 lpfc_sli_disable_intr(phba);
8876 /* Try next level of interrupt mode */
8877 cfg_mode = --intr_mode;
8878 }
8879 }
8880
8881 /* Perform post initialization setup */
8882 lpfc_post_init_setup(phba);
8883
8884 /* Check if there are static vports to be created. */
8885 lpfc_create_static_vport(phba);
8886
8887 return 0;
8888
8889out_remove_device:
8890 lpfc_unset_hba(phba);
8891out_free_sysfs_attr:
8892 lpfc_free_sysfs_attr(vport);
8893out_destroy_shost:
8894 lpfc_destroy_shost(phba);
8895out_unset_driver_resource:
8896 lpfc_unset_driver_resource_phase2(phba);
8897out_free_iocb_list:
8898 lpfc_free_iocb_list(phba);
8899out_unset_driver_resource_s3:
8900 lpfc_sli_driver_resource_unset(phba);
8901out_unset_pci_mem_s3:
8902 lpfc_sli_pci_mem_unset(phba);
8903out_disable_pci_dev:
8904 lpfc_disable_pci_dev(phba);
6669f9bb
JS		 8905 if (shost)
8906 scsi_host_put(shost);
da0436e9
JS		 8907out_free_phba:
8908 lpfc_hba_free(phba);
8909 return error;
8910}
8911
8912/**
8913 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8914 * @pdev: pointer to PCI device
8915 *
8916 * This routine is to be called to disattach a device with SLI-3 interface
8917 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8918 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8919 * device to be removed from the PCI subsystem properly.
8920 **/
8921static void __devexit
8922lpfc_pci_remove_one_s3(struct pci_dev *pdev)
8923{
8924 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8925 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8926 struct lpfc_vport **vports;
8927 struct lpfc_hba *phba = vport->phba;
8928 int i;
8929 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
8930
8931 spin_lock_irq(&phba->hbalock);
8932 vport->load_flag |= FC_UNLOADING;
8933 spin_unlock_irq(&phba->hbalock);
8934
8935 lpfc_free_sysfs_attr(vport);
8936
8937 /* Release all the vports against this physical port */
8938 vports = lpfc_create_vport_work_array(phba);
8939 if (vports != NULL)
587a37f6
JS		 8940 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
8941 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
8942 continue;
da0436e9 8943 fc_vport_terminate(vports[i]->fc_vport);
587a37f6 8944 }
da0436e9
JS		 8945 lpfc_destroy_vport_work_array(phba, vports);
8946
8947 /* Remove FC host and then SCSI host with the physical port */
8948 fc_remove_host(shost);
8949 scsi_remove_host(shost);
8950 lpfc_cleanup(vport);
8951
8952 /*
8953 * Bring down the SLI Layer. This step disable all interrupts,
8954 * clears the rings, discards all mailbox commands, and resets
8955 * the HBA.
8956 */
8957
48e34d0f 8958 /* HBA interrupt will be disabled after this call */
da0436e9
JS		 8959 lpfc_sli_hba_down(phba);
8960 /* Stop kthread signal shall trigger work_done one more time */
8961 kthread_stop(phba->worker_thread);
8962 /* Final cleanup of txcmplq and reset the HBA */
8963 lpfc_sli_brdrestart(phba);
8964
72859909
JS		 8965 kfree(phba->vpi_bmask);
8966 kfree(phba->vpi_ids);
8967
da0436e9
JS		 8968 lpfc_stop_hba_timers(phba);
8969 spin_lock_irq(&phba->hbalock);
8970 list_del_init(&vport->listentry);
8971 spin_unlock_irq(&phba->hbalock);
8972
8973 lpfc_debugfs_terminate(vport);
8974
912e3acd
JS		 8975 /* Disable SR-IOV if enabled */
8976 if (phba->cfg_sriov_nr_virtfn)
8977 pci_disable_sriov(pdev);
8978
da0436e9
JS		 8979 /* Disable interrupt */
8980 lpfc_sli_disable_intr(phba);
8981
8982 pci_set_drvdata(pdev, NULL);
8983 scsi_host_put(shost);
8984
8985 /*
8986 * Call scsi_free before mem_free since scsi bufs are released to their
8987 * corresponding pools here.
8988 */
8989 lpfc_scsi_free(phba);
8990 lpfc_mem_free_all(phba);
8991
8992 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
8993 phba->hbqslimp.virt, phba->hbqslimp.phys);
8994
8995 /* Free resources associated with SLI2 interface */
8996 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
8997 phba->slim2p.virt, phba->slim2p.phys);
8998
8999 /* unmap adapter SLIM and Control Registers */
9000 iounmap(phba->ctrl_regs_memmap_p);
9001 iounmap(phba->slim_memmap_p);
9002
9003 lpfc_hba_free(phba);
9004
9005 pci_release_selected_regions(pdev, bars);
9006 pci_disable_device(pdev);
9007}
9008
9009/**
9010 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9011 * @pdev: pointer to PCI device
9012 * @msg: power management message
9013 *
9014 * This routine is to be called from the kernel's PCI subsystem to support
9015 * system Power Management (PM) to device with SLI-3 interface spec. When
9016 * PM invokes this method, it quiesces the device by stopping the driver's
9017 * worker thread for the device, turning off device's interrupt and DMA,
9018 * and bring the device offline. Note that as the driver implements the
9019 * minimum PM requirements to a power-aware driver's PM support for the
9020 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9021 * to the suspend() method call will be treated as SUSPEND and the driver will
9022 * fully reinitialize its device during resume() method call, the driver will
9023 * set device to PCI_D3hot state in PCI config space instead of setting it
9024 * according to the @msg provided by the PM.
9025 *
9026 * Return code
9027 * 0 - driver suspended the device
9028 * Error otherwise
9029 **/
9030static int
9031lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9032{
9033 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9034 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9035
9036 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9037 "0473 PCI device Power Management suspend.\n");
9038
9039 /* Bring down the device */
618a5230 9040 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
da0436e9
JS		 9041 lpfc_offline(phba);
9042 kthread_stop(phba->worker_thread);
9043
9044 /* Disable interrupt from device */
9045 lpfc_sli_disable_intr(phba);
9046
9047 /* Save device state to PCI config space */
9048 pci_save_state(pdev);
9049 pci_set_power_state(pdev, PCI_D3hot);
9050
9051 return 0;
9052}
9053
9054/**
9055 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9056 * @pdev: pointer to PCI device
9057 *
9058 * This routine is to be called from the kernel's PCI subsystem to support
9059 * system Power Management (PM) to device with SLI-3 interface spec. When PM
9060 * invokes this method, it restores the device's PCI config space state and
9061 * fully reinitializes the device and brings it online. Note that as the
9062 * driver implements the minimum PM requirements to a power-aware driver's
9063 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9064 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9065 * driver will fully reinitialize its device during resume() method call,
9066 * the device will be set to PCI_D0 directly in PCI config space before
9067 * restoring the state.
9068 *
9069 * Return code
9070 * 0 - driver suspended the device
9071 * Error otherwise
9072 **/
9073static int
9074lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9075{
9076 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9077 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9078 uint32_t intr_mode;
9079 int error;
9080
9081 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9082 "0452 PCI device Power Management resume.\n");
9083
9084 /* Restore device state from PCI config space */
9085 pci_set_power_state(pdev, PCI_D0);
9086 pci_restore_state(pdev);
0d878419 9087
1dfb5a47
JS		 9088 /*
9089 * As the new kernel behavior of pci_restore_state() API call clears
9090 * device saved_state flag, need to save the restored state again.
9091 */
9092 pci_save_state(pdev);
9093
da0436e9
JS		 9094 if (pdev->is_busmaster)
9095 pci_set_master(pdev);
9096
9097 /* Startup the kernel thread for this host adapter. */
9098 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9099 "lpfc_worker_%d", phba->brd_no);
9100 if (IS_ERR(phba->worker_thread)) {
9101 error = PTR_ERR(phba->worker_thread);
9102 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9103 "0434 PM resume failed to start worker "
9104 "thread: error=x%x.\n", error);
9105 return error;
9106 }
9107
9108 /* Configure and enable interrupt */
9109 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9110 if (intr_mode == LPFC_INTR_ERROR) {
9111 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9112 "0430 PM resume Failed to enable interrupt\n");
9113 return -EIO;
9114 } else
9115 phba->intr_mode = intr_mode;
9116
9117 /* Restart HBA and bring it online */
9118 lpfc_sli_brdrestart(phba);
9119 lpfc_online(phba);
9120
9121 /* Log the current active interrupt mode */
9122 lpfc_log_intr_mode(phba, phba->intr_mode);
9123
9124 return 0;
9125}
9126
891478a2
JS		 9127/**
9128 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9129 * @phba: pointer to lpfc hba data structure.
9130 *
9131 * This routine is called to prepare the SLI3 device for PCI slot recover. It
e2af0d2e 9132 * aborts all the outstanding SCSI I/Os to the pci device.
891478a2
JS		 9133 **/
9134static void
9135lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9136{
e2af0d2e
JS		 9137 struct lpfc_sli *psli = &phba->sli;
9138 struct lpfc_sli_ring *pring;
9139
891478a2
JS		 9140 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9141 "2723 PCI channel I/O abort preparing for recovery\n");
e2af0d2e
JS		 9142
9143 /*
9144 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9145 * and let the SCSI mid-layer to retry them to recover.
9146 */
9147 pring = &psli->ring[psli->fcp_ring];
9148 lpfc_sli_abort_iocb_ring(phba, pring);
891478a2
JS		 9149}
9150
0d878419
JS		 9151/**
9152 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9153 * @phba: pointer to lpfc hba data structure.
9154 *
9155 * This routine is called to prepare the SLI3 device for PCI slot reset. It
9156 * disables the device interrupt and pci device, and aborts the internal FCP
9157 * pending I/Os.
9158 **/
9159static void
9160lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9161{
0d878419 9162 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
891478a2 9163 "2710 PCI channel disable preparing for reset\n");
e2af0d2e 9164
75baf696 9165 /* Block any management I/Os to the device */
618a5230 9166 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
75baf696 9167
e2af0d2e
JS		 9168 /* Block all SCSI devices' I/Os on the host */
9169 lpfc_scsi_dev_block(phba);
9170
9171 /* stop all timers */
9172 lpfc_stop_hba_timers(phba);
9173
0d878419
JS		 9174 /* Disable interrupt and pci device */
9175 lpfc_sli_disable_intr(phba);
9176 pci_disable_device(phba->pcidev);
75baf696 9177
e2af0d2e
JS		 9178 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9179 lpfc_sli_flush_fcp_rings(phba);
0d878419
JS		 9180}
9181
9182/**
9183 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9184 * @phba: pointer to lpfc hba data structure.
9185 *
9186 * This routine is called to prepare the SLI3 device for PCI slot permanently
9187 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9188 * pending I/Os.
9189 **/
9190static void
75baf696 9191lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
0d878419
JS		 9192{
9193 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
891478a2 9194 "2711 PCI channel permanent disable for failure\n");
e2af0d2e
JS		 9195 /* Block all SCSI devices' I/Os on the host */
9196 lpfc_scsi_dev_block(phba);
9197
9198 /* stop all timers */
9199 lpfc_stop_hba_timers(phba);
9200
0d878419
JS		 9201 /* Clean up all driver's outstanding SCSI I/Os */
9202 lpfc_sli_flush_fcp_rings(phba);
9203}
9204
da0436e9
JS		 9205/**
9206 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9207 * @pdev: pointer to PCI device.
9208 * @state: the current PCI connection state.
9209 *
9210 * This routine is called from the PCI subsystem for I/O error handling to
9211 * device with SLI-3 interface spec. This function is called by the PCI
9212 * subsystem after a PCI bus error affecting this device has been detected.
9213 * When this function is invoked, it will need to stop all the I/Os and
9214 * interrupt(s) to the device. Once that is done, it will return
9215 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9216 * as desired.
9217 *
9218 * Return codes
0d878419 9219 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
da0436e9
JS		 9220 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9221 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9222 **/
9223static pci_ers_result_t
9224lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9225{
9226 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9227 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
da0436e9 9228
0d878419
JS		 9229 switch (state) {
9230 case pci_channel_io_normal:
891478a2
JS		 9231 /* Non-fatal error, prepare for recovery */
9232 lpfc_sli_prep_dev_for_recover(phba);
0d878419
JS		 9233 return PCI_ERS_RESULT_CAN_RECOVER;
9234 case pci_channel_io_frozen:
9235 /* Fatal error, prepare for slot reset */
9236 lpfc_sli_prep_dev_for_reset(phba);
9237 return PCI_ERS_RESULT_NEED_RESET;
9238 case pci_channel_io_perm_failure:
9239 /* Permanent failure, prepare for device down */
75baf696 9240 lpfc_sli_prep_dev_for_perm_failure(phba);
da0436e9 9241 return PCI_ERS_RESULT_DISCONNECT;
0d878419
JS		 9242 default:
9243 /* Unknown state, prepare and request slot reset */
9244 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9245 "0472 Unknown PCI error state: x%x\n", state);
9246 lpfc_sli_prep_dev_for_reset(phba);
9247 return PCI_ERS_RESULT_NEED_RESET;
da0436e9 9248 }
da0436e9
JS		 9249}
9250
9251/**
9252 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
9253 * @pdev: pointer to PCI device.
9254 *
9255 * This routine is called from the PCI subsystem for error handling to
9256 * device with SLI-3 interface spec. This is called after PCI bus has been
9257 * reset to restart the PCI card from scratch, as if from a cold-boot.
9258 * During the PCI subsystem error recovery, after driver returns
9259 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9260 * recovery and then call this routine before calling the .resume method
9261 * to recover the device. This function will initialize the HBA device,
9262 * enable the interrupt, but it will just put the HBA to offline state
9263 * without passing any I/O traffic.
9264 *
9265 * Return codes
9266 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9267 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9268 */
9269static pci_ers_result_t
9270lpfc_io_slot_reset_s3(struct pci_dev *pdev)
9271{
9272 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9273 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9274 struct lpfc_sli *psli = &phba->sli;
9275 uint32_t intr_mode;
9276
9277 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9278 if (pci_enable_device_mem(pdev)) {
9279 printk(KERN_ERR "lpfc: Cannot re-enable "
9280 "PCI device after reset.\n");
9281 return PCI_ERS_RESULT_DISCONNECT;
9282 }
9283
9284 pci_restore_state(pdev);
1dfb5a47
JS		 9285
9286 /*
9287 * As the new kernel behavior of pci_restore_state() API call clears
9288 * device saved_state flag, need to save the restored state again.
9289 */
9290 pci_save_state(pdev);
9291
da0436e9
JS		 9292 if (pdev->is_busmaster)
9293 pci_set_master(pdev);
9294
9295 spin_lock_irq(&phba->hbalock);
9296 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9297 spin_unlock_irq(&phba->hbalock);
9298
9299 /* Configure and enable interrupt */
9300 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9301 if (intr_mode == LPFC_INTR_ERROR) {
9302 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9303 "0427 Cannot re-enable interrupt after "
9304 "slot reset.\n");
9305 return PCI_ERS_RESULT_DISCONNECT;
9306 } else
9307 phba->intr_mode = intr_mode;
9308
75baf696 9309 /* Take device offline, it will perform cleanup */
618a5230 9310 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
da0436e9
JS		 9311 lpfc_offline(phba);
9312 lpfc_sli_brdrestart(phba);
9313
9314 /* Log the current active interrupt mode */
9315 lpfc_log_intr_mode(phba, phba->intr_mode);
9316
9317 return PCI_ERS_RESULT_RECOVERED;
9318}
9319
9320/**
9321 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
9322 * @pdev: pointer to PCI device
9323 *
9324 * This routine is called from the PCI subsystem for error handling to device
9325 * with SLI-3 interface spec. It is called when kernel error recovery tells
9326 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9327 * error recovery. After this call, traffic can start to flow from this device
9328 * again.
9329 */
9330static void
9331lpfc_io_resume_s3(struct pci_dev *pdev)
9332{
9333 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9334 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3772a991 9335
e2af0d2e 9336 /* Bring device online, it will be no-op for non-fatal error resume */
da0436e9 9337 lpfc_online(phba);
0d878419
JS		 9338
9339 /* Clean up Advanced Error Reporting (AER) if needed */
9340 if (phba->hba_flag & HBA_AER_ENABLED)
9341 pci_cleanup_aer_uncorrect_error_status(pdev);
da0436e9 9342}
3772a991 9343
da0436e9
JS		 9344/**
9345 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
9346 * @phba: pointer to lpfc hba data structure.
9347 *
9348 * returns the number of ELS/CT IOCBs to reserve
9349 **/
9350int
9351lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
9352{
9353 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
9354
f1126688
JS		 9355 if (phba->sli_rev == LPFC_SLI_REV4) {
9356 if (max_xri <= 100)
6a9c52cf 9357 return 10;
f1126688 9358 else if (max_xri <= 256)
6a9c52cf 9359 return 25;
f1126688 9360 else if (max_xri <= 512)
6a9c52cf 9361 return 50;
f1126688 9362 else if (max_xri <= 1024)
6a9c52cf 9363 return 100;
8a9d2e80 9364 else if (max_xri <= 1536)
6a9c52cf 9365 return 150;
8a9d2e80
JS		 9366 else if (max_xri <= 2048)
9367 return 200;
9368 else
9369 return 250;
f1126688
JS		 9370 } else
9371 return 0;
3772a991
JS		 9372}
9373
52d52440
JS		 9374/**
9375 * lpfc_write_firmware - attempt to write a firmware image to the port
9376 * @phba: pointer to lpfc hba data structure.
9377 * @fw: pointer to firmware image returned from request_firmware.
9378 *
9379 * returns the number of bytes written if write is successful.
9380 * returns a negative error value if there were errors.
9381 * returns 0 if firmware matches currently active firmware on port.
9382 **/
9383int
9384lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw)
9385{
6b5151fd 9386 char fwrev[FW_REV_STR_SIZE];
52d52440
JS		 9387 struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data;
9388 struct list_head dma_buffer_list;
9389 int i, rc = 0;
9390 struct lpfc_dmabuf *dmabuf, *next;
9391 uint32_t offset = 0, temp_offset = 0;
9392
9393 INIT_LIST_HEAD(&dma_buffer_list);
079b5c91
JS		 9394 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
9395 (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
9396 LPFC_FILE_TYPE_GROUP) ||
9397 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
9398 (be32_to_cpu(image->size) != fw->size)) {
52d52440
JS		 9399 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9400 "3022 Invalid FW image found. "
079b5c91
JS		 9401 "Magic:%x Type:%x ID:%x\n",
9402 be32_to_cpu(image->magic_number),
9403 bf_get_be32(lpfc_grp_hdr_file_type, image),
9404 bf_get_be32(lpfc_grp_hdr_id, image));
52d52440
JS		 9405 return -EINVAL;
9406 }
9407 lpfc_decode_firmware_rev(phba, fwrev, 1);
88a2cfbb 9408 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
52d52440
JS		 9409 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9410 "3023 Updating Firmware. Current Version:%s "
9411 "New Version:%s\n",
88a2cfbb 9412 fwrev, image->revision);
52d52440
JS		 9413 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
9414 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
9415 GFP_KERNEL);
9416 if (!dmabuf) {
9417 rc = -ENOMEM;
9418 goto out;
9419 }
9420 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
9421 SLI4_PAGE_SIZE,
9422 &dmabuf->phys,
9423 GFP_KERNEL);
9424 if (!dmabuf->virt) {
9425 kfree(dmabuf);
9426 rc = -ENOMEM;
9427 goto out;
9428 }
9429 list_add_tail(&dmabuf->list, &dma_buffer_list);
9430 }
9431 while (offset < fw->size) {
9432 temp_offset = offset;
9433 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
079b5c91 9434 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
52d52440
JS		 9435 memcpy(dmabuf->virt,
9436 fw->data + temp_offset,
079b5c91
JS		 9437 fw->size - temp_offset);
9438 temp_offset = fw->size;
52d52440
JS		 9439 break;
9440 }
52d52440
JS		 9441 memcpy(dmabuf->virt, fw->data + temp_offset,
9442 SLI4_PAGE_SIZE);
88a2cfbb 9443 temp_offset += SLI4_PAGE_SIZE;
52d52440
JS		 9444 }
9445 rc = lpfc_wr_object(phba, &dma_buffer_list,
9446 (fw->size - offset), &offset);
9447 if (rc) {
9448 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9449 "3024 Firmware update failed. "
9450 "%d\n", rc);
9451 goto out;
9452 }
9453 }
9454 rc = offset;
9455 }
9456out:
9457 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
9458 list_del(&dmabuf->list);
9459 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
9460 dmabuf->virt, dmabuf->phys);
9461 kfree(dmabuf);
9462 }
9463 return rc;
9464}
9465
3772a991 9466/**
da0436e9 9467 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
3772a991
JS		 9468 * @pdev: pointer to PCI device
9469 * @pid: pointer to PCI device identifier
9470 *
da0436e9
JS		 9471 * This routine is called from the kernel's PCI subsystem to device with
9472 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
3772a991 9473 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
da0436e9
JS		 9474 * information of the device and driver to see if the driver state that it
9475 * can support this kind of device. If the match is successful, the driver
9476 * core invokes this routine. If this routine determines it can claim the HBA,
9477 * it does all the initialization that it needs to do to handle the HBA
9478 * properly.
3772a991
JS		 9479 *
9480 * Return code
9481 * 0 - driver can claim the device
9482 * negative value - driver can not claim the device
9483 **/
9484static int __devinit
da0436e9 9485lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
3772a991
JS		 9486{
9487 struct lpfc_hba *phba;
9488 struct lpfc_vport *vport = NULL;
6669f9bb 9489 struct Scsi_Host *shost = NULL;
3772a991
JS		 9490 int error;
9491 uint32_t cfg_mode, intr_mode;
da0436e9 9492 int mcnt;
0558056c 9493 int adjusted_fcp_eq_count;
52d52440
JS		 9494 const struct firmware *fw;
9495 uint8_t file_name[16];
3772a991
JS		 9496
9497 /* Allocate memory for HBA structure */
9498 phba = lpfc_hba_alloc(pdev);
9499 if (!phba)
9500 return -ENOMEM;
9501
9502 /* Perform generic PCI device enabling operation */
9503 error = lpfc_enable_pci_dev(phba);
079b5c91 9504 if (error)
3772a991 9505 goto out_free_phba;
3772a991 9506
da0436e9
JS		 9507 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
9508 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
3772a991
JS		 9509 if (error)
9510 goto out_disable_pci_dev;
9511
da0436e9
JS		 9512 /* Set up SLI-4 specific device PCI memory space */
9513 error = lpfc_sli4_pci_mem_setup(phba);
3772a991
JS		 9514 if (error) {
9515 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9516 "1410 Failed to set up pci memory space.\n");
3772a991
JS		 9517 goto out_disable_pci_dev;
9518 }
9519
9520 /* Set up phase-1 common device driver resources */
9521 error = lpfc_setup_driver_resource_phase1(phba);
9522 if (error) {
9523 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 9524 "1411 Failed to set up driver resource.\n");
9525 goto out_unset_pci_mem_s4;
3772a991
JS		 9526 }
9527
da0436e9
JS		 9528 /* Set up SLI-4 Specific device driver resources */
9529 error = lpfc_sli4_driver_resource_setup(phba);
3772a991
JS		 9530 if (error) {
9531 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 9532 "1412 Failed to set up driver resource.\n");
9533 goto out_unset_pci_mem_s4;
3772a991
JS		 9534 }
9535
9536 /* Initialize and populate the iocb list per host */
2a9bf3d0
JS		 9537
9538 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9539 "2821 initialize iocb list %d.\n",
9540 phba->cfg_iocb_cnt*1024);
9541 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
9542
3772a991
JS		 9543 if (error) {
9544 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 9545 "1413 Failed to initialize iocb list.\n");
9546 goto out_unset_driver_resource_s4;
3772a991
JS		 9547 }
9548
19ca7609 9549 INIT_LIST_HEAD(&phba->active_rrq_list);
7d791df7 9550 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
19ca7609 9551
3772a991
JS		 9552 /* Set up common device driver resources */
9553 error = lpfc_setup_driver_resource_phase2(phba);
9554 if (error) {
9555 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9556 "1414 Failed to set up driver resource.\n");
3772a991
JS		 9557 goto out_free_iocb_list;
9558 }
9559
079b5c91
JS		 9560 /* Get the default values for Model Name and Description */
9561 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9562
3772a991
JS		 9563 /* Create SCSI host to the physical port */
9564 error = lpfc_create_shost(phba);
9565 if (error) {
9566 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9567 "1415 Failed to create scsi host.\n");
3772a991
JS		 9568 goto out_unset_driver_resource;
9569 }
9399627f 9570
5b75da2f 9571 /* Configure sysfs attributes */
3772a991
JS		 9572 vport = phba->pport;
9573 error = lpfc_alloc_sysfs_attr(vport);
9574 if (error) {
9399627f 9575 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9576 "1416 Failed to allocate sysfs attr\n");
3772a991 9577 goto out_destroy_shost;
98c9ea5c 9578 }
875fbdfe 9579
6669f9bb 9580 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
3772a991 9581 /* Now, trying to enable interrupt and bring up the device */
5b75da2f
JS		 9582 cfg_mode = phba->cfg_use_msi;
9583 while (true) {
3772a991
JS		 9584 /* Put device to a known state before enabling interrupt */
9585 lpfc_stop_port(phba);
5b75da2f 9586 /* Configure and enable interrupt */
da0436e9 9587 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
5b75da2f
JS		 9588 if (intr_mode == LPFC_INTR_ERROR) {
9589 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9590 "0426 Failed to enable interrupt.\n");
3772a991 9591 error = -ENODEV;
5b75da2f
JS		 9592 goto out_free_sysfs_attr;
9593 }
0558056c 9594 /* Default to single EQ for non-MSI-X */
def9c7a9 9595 if (phba->intr_type != MSIX)
0558056c
JS		 9596 adjusted_fcp_eq_count = 0;
9597 else if (phba->sli4_hba.msix_vec_nr <
9598 phba->cfg_fcp_eq_count + 1)
9599 adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
9600 else
9601 adjusted_fcp_eq_count = phba->cfg_fcp_eq_count;
0558056c 9602 phba->cfg_fcp_eq_count = adjusted_fcp_eq_count;
da0436e9
JS		 9603 /* Set up SLI-4 HBA */
9604 if (lpfc_sli4_hba_setup(phba)) {
5b75da2f 9605 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9606 "1421 Failed to set up hba\n");
5b75da2f 9607 error = -ENODEV;
da0436e9 9608 goto out_disable_intr;
5b75da2f
JS		 9609 }
9610
da0436e9
JS		 9611 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
9612 if (intr_mode != 0)
9613 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
9614 LPFC_ACT_INTR_CNT);
9615
9616 /* Check active interrupts received only for MSI/MSI-X */
3772a991 9617 if (intr_mode == 0 ||
da0436e9 9618 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
5b75da2f
JS		 9619 /* Log the current active interrupt mode */
9620 phba->intr_mode = intr_mode;
9621 lpfc_log_intr_mode(phba, intr_mode);
9622 break;
5b75da2f 9623 }
da0436e9
JS		 9624 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9625 "0451 Configure interrupt mode (%d) "
9626 "failed active interrupt test.\n",
9627 intr_mode);
2fcee4bf
JS		 9628 /* Unset the previous SLI-4 HBA setup. */
9629 /*
9630 * TODO: Is this operation compatible with IF TYPE 2
9631 * devices? All port state is deleted and cleared.
9632 */
da0436e9
JS		 9633 lpfc_sli4_unset_hba(phba);
9634 /* Try next level of interrupt mode */
9635 cfg_mode = --intr_mode;
98c9ea5c 9636 }
858c9f6c 9637
3772a991
JS		 9638 /* Perform post initialization setup */
9639 lpfc_post_init_setup(phba);
dea3101e 9640
026abb87
JS		 9641 /* check for firmware upgrade or downgrade (if_type 2 only) */
9642 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
9643 LPFC_SLI_INTF_IF_TYPE_2) {
9644 snprintf(file_name, 16, "%s.grp", phba->ModelName);
9645 error = request_firmware(&fw, file_name, &phba->pcidev->dev);
9646 if (!error) {
9647 lpfc_write_firmware(phba, fw);
9648 release_firmware(fw);
9649 }
52d52440
JS		 9650 }
9651
1c6834a7
JS		 9652 /* Check if there are static vports to be created. */
9653 lpfc_create_static_vport(phba);
dea3101e 9654 return 0;
9655
da0436e9
JS		 9656out_disable_intr:
9657 lpfc_sli4_disable_intr(phba);
5b75da2f
JS		 9658out_free_sysfs_attr:
9659 lpfc_free_sysfs_attr(vport);
3772a991
JS		 9660out_destroy_shost:
9661 lpfc_destroy_shost(phba);
9662out_unset_driver_resource:
9663 lpfc_unset_driver_resource_phase2(phba);
9664out_free_iocb_list:
9665 lpfc_free_iocb_list(phba);
da0436e9
JS		 9666out_unset_driver_resource_s4:
9667 lpfc_sli4_driver_resource_unset(phba);
9668out_unset_pci_mem_s4:
9669 lpfc_sli4_pci_mem_unset(phba);
3772a991
JS		 9670out_disable_pci_dev:
9671 lpfc_disable_pci_dev(phba);
6669f9bb
JS		 9672 if (shost)
9673 scsi_host_put(shost);
2e0fef85 9674out_free_phba:
3772a991 9675 lpfc_hba_free(phba);
dea3101e 9676 return error;
9677}
9678
e59058c4 9679/**
da0436e9 9680 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
e59058c4
JS		 9681 * @pdev: pointer to PCI device
9682 *
da0436e9
JS		 9683 * This routine is called from the kernel's PCI subsystem to device with
9684 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
3772a991
JS		 9685 * removed from PCI bus, it performs all the necessary cleanup for the HBA
9686 * device to be removed from the PCI subsystem properly.
e59058c4 9687 **/
dea3101e 9688static void __devexit
da0436e9 9689lpfc_pci_remove_one_s4(struct pci_dev *pdev)
dea3101e 9690{
da0436e9 9691 struct Scsi_Host *shost = pci_get_drvdata(pdev);
2e0fef85 9692 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
eada272d 9693 struct lpfc_vport **vports;
da0436e9 9694 struct lpfc_hba *phba = vport->phba;
eada272d 9695 int i;
8a4df120 9696
da0436e9 9697 /* Mark the device unloading flag */
549e55cd 9698 spin_lock_irq(&phba->hbalock);
51ef4c26 9699 vport->load_flag |= FC_UNLOADING;
549e55cd 9700 spin_unlock_irq(&phba->hbalock);
2e0fef85 9701
da0436e9 9702 /* Free the HBA sysfs attributes */
858c9f6c
JS		 9703 lpfc_free_sysfs_attr(vport);
9704
eada272d
JS		 9705 /* Release all the vports against this physical port */
9706 vports = lpfc_create_vport_work_array(phba);
9707 if (vports != NULL)
587a37f6
JS		 9708 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9709 if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9710 continue;
eada272d 9711 fc_vport_terminate(vports[i]->fc_vport);
587a37f6 9712 }
eada272d
JS		 9713 lpfc_destroy_vport_work_array(phba, vports);
9714
9715 /* Remove FC host and then SCSI host with the physical port */
858c9f6c
JS		 9716 fc_remove_host(shost);
9717 scsi_remove_host(shost);
da0436e9
JS		 9718
9719 /* Perform cleanup on the physical port */
87af33fe
JS		 9720 lpfc_cleanup(vport);
9721
2e0fef85 9722 /*
da0436e9 9723 * Bring down the SLI Layer. This step disables all interrupts,
2e0fef85 9724 * clears the rings, discards all mailbox commands, and resets
da0436e9 9725 * the HBA FCoE function.
2e0fef85 9726 */
da0436e9
JS		 9727 lpfc_debugfs_terminate(vport);
9728 lpfc_sli4_hba_unset(phba);
a257bf90 9729
858c9f6c
JS		 9730 spin_lock_irq(&phba->hbalock);
9731 list_del_init(&vport->listentry);
9732 spin_unlock_irq(&phba->hbalock);
9733
3677a3a7 9734 /* Perform scsi free before driver resource_unset since scsi
da0436e9 9735 * buffers are released to their corresponding pools here.
2e0fef85
JS		 9736 */
9737 lpfc_scsi_free(phba);
da0436e9 9738 lpfc_sli4_driver_resource_unset(phba);
ed957684 9739
da0436e9
JS		 9740 /* Unmap adapter Control and Doorbell registers */
9741 lpfc_sli4_pci_mem_unset(phba);
2e0fef85 9742
da0436e9
JS		 9743 /* Release PCI resources and disable device's PCI function */
9744 scsi_host_put(shost);
9745 lpfc_disable_pci_dev(phba);
2e0fef85 9746
da0436e9 9747 /* Finally, free the driver's device data structure */
3772a991 9748 lpfc_hba_free(phba);
2e0fef85 9749
da0436e9 9750 return;
dea3101e 9751}
9752
3a55b532 9753/**
da0436e9 9754 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
3a55b532
JS		 9755 * @pdev: pointer to PCI device
9756 * @msg: power management message
9757 *
da0436e9
JS		 9758 * This routine is called from the kernel's PCI subsystem to support system
9759 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
9760 * this method, it quiesces the device by stopping the driver's worker
9761 * thread for the device, turning off device's interrupt and DMA, and bring
9762 * the device offline. Note that as the driver implements the minimum PM
9763 * requirements to a power-aware driver's PM support for suspend/resume -- all
9764 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
9765 * method call will be treated as SUSPEND and the driver will fully
9766 * reinitialize its device during resume() method call, the driver will set
9767 * device to PCI_D3hot state in PCI config space instead of setting it
3772a991 9768 * according to the @msg provided by the PM.
3a55b532
JS		 9769 *
9770 * Return code
3772a991
JS		 9771 * 0 - driver suspended the device
9772 * Error otherwise
3a55b532
JS		 9773 **/
9774static int
da0436e9 9775lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
3a55b532
JS		 9776{
9777 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9778 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9779
9780 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
75baf696 9781 "2843 PCI device Power Management suspend.\n");
3a55b532
JS		 9782
9783 /* Bring down the device */
618a5230 9784 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
3a55b532
JS		 9785 lpfc_offline(phba);
9786 kthread_stop(phba->worker_thread);
9787
9788 /* Disable interrupt from device */
da0436e9 9789 lpfc_sli4_disable_intr(phba);
5350d872 9790 lpfc_sli4_queue_destroy(phba);
3a55b532
JS		 9791
9792 /* Save device state to PCI config space */
9793 pci_save_state(pdev);
9794 pci_set_power_state(pdev, PCI_D3hot);
9795
9796 return 0;
9797}
9798
9799/**
da0436e9 9800 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
3a55b532
JS		 9801 * @pdev: pointer to PCI device
9802 *
da0436e9
JS		 9803 * This routine is called from the kernel's PCI subsystem to support system
9804 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
9805 * this method, it restores the device's PCI config space state and fully
9806 * reinitializes the device and brings it online. Note that as the driver
9807 * implements the minimum PM requirements to a power-aware driver's PM for
9808 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9809 * to the suspend() method call will be treated as SUSPEND and the driver
9810 * will fully reinitialize its device during resume() method call, the device
9811 * will be set to PCI_D0 directly in PCI config space before restoring the
9812 * state.
3a55b532
JS		 9813 *
9814 * Return code
3772a991
JS		 9815 * 0 - driver suspended the device
9816 * Error otherwise
3a55b532
JS		 9817 **/
9818static int
da0436e9 9819lpfc_pci_resume_one_s4(struct pci_dev *pdev)
3a55b532
JS		 9820{
9821 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9822 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
5b75da2f 9823 uint32_t intr_mode;
3a55b532
JS		 9824 int error;
9825
9826 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
da0436e9 9827 "0292 PCI device Power Management resume.\n");
3a55b532
JS		 9828
9829 /* Restore device state from PCI config space */
9830 pci_set_power_state(pdev, PCI_D0);
9831 pci_restore_state(pdev);
1dfb5a47
JS		 9832
9833 /*
9834 * As the new kernel behavior of pci_restore_state() API call clears
9835 * device saved_state flag, need to save the restored state again.
9836 */
9837 pci_save_state(pdev);
9838
3a55b532
JS		 9839 if (pdev->is_busmaster)
9840 pci_set_master(pdev);
9841
da0436e9 9842 /* Startup the kernel thread for this host adapter. */
3a55b532
JS		 9843 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9844 "lpfc_worker_%d", phba->brd_no);
9845 if (IS_ERR(phba->worker_thread)) {
9846 error = PTR_ERR(phba->worker_thread);
9847 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9848 "0293 PM resume failed to start worker "
3a55b532
JS		 9849 "thread: error=x%x.\n", error);
9850 return error;
9851 }
9852
5b75da2f 9853 /* Configure and enable interrupt */
da0436e9 9854 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
5b75da2f 9855 if (intr_mode == LPFC_INTR_ERROR) {
3a55b532 9856 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9857 "0294 PM resume Failed to enable interrupt\n");
5b75da2f
JS		 9858 return -EIO;
9859 } else
9860 phba->intr_mode = intr_mode;
3a55b532
JS		 9861
9862 /* Restart HBA and bring it online */
9863 lpfc_sli_brdrestart(phba);
9864 lpfc_online(phba);
9865
5b75da2f
JS		 9866 /* Log the current active interrupt mode */
9867 lpfc_log_intr_mode(phba, phba->intr_mode);
9868
3a55b532
JS		 9869 return 0;
9870}
9871
75baf696
JS		 9872/**
9873 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
9874 * @phba: pointer to lpfc hba data structure.
9875 *
9876 * This routine is called to prepare the SLI4 device for PCI slot recover. It
9877 * aborts all the outstanding SCSI I/Os to the pci device.
9878 **/
9879static void
9880lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
9881{
9882 struct lpfc_sli *psli = &phba->sli;
9883 struct lpfc_sli_ring *pring;
9884
9885 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9886 "2828 PCI channel I/O abort preparing for recovery\n");
9887 /*
9888 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9889 * and let the SCSI mid-layer to retry them to recover.
9890 */
9891 pring = &psli->ring[psli->fcp_ring];
9892 lpfc_sli_abort_iocb_ring(phba, pring);
9893}
9894
9895/**
9896 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
9897 * @phba: pointer to lpfc hba data structure.
9898 *
9899 * This routine is called to prepare the SLI4 device for PCI slot reset. It
9900 * disables the device interrupt and pci device, and aborts the internal FCP
9901 * pending I/Os.
9902 **/
9903static void
9904lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
9905{
9906 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9907 "2826 PCI channel disable preparing for reset\n");
9908
9909 /* Block any management I/Os to the device */
618a5230 9910 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
75baf696
JS		 9911
9912 /* Block all SCSI devices' I/Os on the host */
9913 lpfc_scsi_dev_block(phba);
9914
9915 /* stop all timers */
9916 lpfc_stop_hba_timers(phba);
9917
9918 /* Disable interrupt and pci device */
9919 lpfc_sli4_disable_intr(phba);
5350d872 9920 lpfc_sli4_queue_destroy(phba);
75baf696
JS		 9921 pci_disable_device(phba->pcidev);
9922
9923 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9924 lpfc_sli_flush_fcp_rings(phba);
9925}
9926
9927/**
9928 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
9929 * @phba: pointer to lpfc hba data structure.
9930 *
9931 * This routine is called to prepare the SLI4 device for PCI slot permanently
9932 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9933 * pending I/Os.
9934 **/
9935static void
9936lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9937{
9938 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9939 "2827 PCI channel permanent disable for failure\n");
9940
9941 /* Block all SCSI devices' I/Os on the host */
9942 lpfc_scsi_dev_block(phba);
9943
9944 /* stop all timers */
9945 lpfc_stop_hba_timers(phba);
9946
9947 /* Clean up all driver's outstanding SCSI I/Os */
9948 lpfc_sli_flush_fcp_rings(phba);
9949}
9950
8d63f375 9951/**
da0436e9 9952 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
e59058c4
JS		 9953 * @pdev: pointer to PCI device.
9954 * @state: the current PCI connection state.
8d63f375 9955 *
da0436e9
JS		 9956 * This routine is called from the PCI subsystem for error handling to device
9957 * with SLI-4 interface spec. This function is called by the PCI subsystem
9958 * after a PCI bus error affecting this device has been detected. When this
9959 * function is invoked, it will need to stop all the I/Os and interrupt(s)
9960 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
9961 * for the PCI subsystem to perform proper recovery as desired.
e59058c4
JS		 9962 *
9963 * Return codes
3772a991
JS		 9964 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9965 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
e59058c4 9966 **/
3772a991 9967static pci_ers_result_t
da0436e9 9968lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
8d63f375 9969{
75baf696
JS		 9970 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9971 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9972
9973 switch (state) {
9974 case pci_channel_io_normal:
9975 /* Non-fatal error, prepare for recovery */
9976 lpfc_sli4_prep_dev_for_recover(phba);
9977 return PCI_ERS_RESULT_CAN_RECOVER;
9978 case pci_channel_io_frozen:
9979 /* Fatal error, prepare for slot reset */
9980 lpfc_sli4_prep_dev_for_reset(phba);
9981 return PCI_ERS_RESULT_NEED_RESET;
9982 case pci_channel_io_perm_failure:
9983 /* Permanent failure, prepare for device down */
9984 lpfc_sli4_prep_dev_for_perm_failure(phba);
9985 return PCI_ERS_RESULT_DISCONNECT;
9986 default:
9987 /* Unknown state, prepare and request slot reset */
9988 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9989 "2825 Unknown PCI error state: x%x\n", state);
9990 lpfc_sli4_prep_dev_for_reset(phba);
9991 return PCI_ERS_RESULT_NEED_RESET;
9992 }
8d63f375
LV		 9993}
9994
9995/**
da0436e9 9996 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
e59058c4
JS		 9997 * @pdev: pointer to PCI device.
9998 *
da0436e9
JS		 9999 * This routine is called from the PCI subsystem for error handling to device
10000 * with SLI-4 interface spec. It is called after PCI bus has been reset to
10001 * restart the PCI card from scratch, as if from a cold-boot. During the
10002 * PCI subsystem error recovery, after the driver returns
3772a991 10003 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
da0436e9
JS		 10004 * recovery and then call this routine before calling the .resume method to
10005 * recover the device. This function will initialize the HBA device, enable
10006 * the interrupt, but it will just put the HBA to offline state without
10007 * passing any I/O traffic.
8d63f375 10008 *
e59058c4 10009 * Return codes
3772a991
JS		 10010 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10011 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8d63f375 10012 */
3772a991 10013static pci_ers_result_t
da0436e9 10014lpfc_io_slot_reset_s4(struct pci_dev *pdev)
8d63f375 10015{
75baf696
JS		 10016 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10017 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10018 struct lpfc_sli *psli = &phba->sli;
10019 uint32_t intr_mode;
10020
10021 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10022 if (pci_enable_device_mem(pdev)) {
10023 printk(KERN_ERR "lpfc: Cannot re-enable "
10024 "PCI device after reset.\n");
10025 return PCI_ERS_RESULT_DISCONNECT;
10026 }
10027
10028 pci_restore_state(pdev);
0a96e975
JS		 10029
10030 /*
10031 * As the new kernel behavior of pci_restore_state() API call clears
10032 * device saved_state flag, need to save the restored state again.
10033 */
10034 pci_save_state(pdev);
10035
75baf696
JS		 10036 if (pdev->is_busmaster)
10037 pci_set_master(pdev);
10038
10039 spin_lock_irq(&phba->hbalock);
10040 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10041 spin_unlock_irq(&phba->hbalock);
10042
10043 /* Configure and enable interrupt */
10044 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10045 if (intr_mode == LPFC_INTR_ERROR) {
10046 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10047 "2824 Cannot re-enable interrupt after "
10048 "slot reset.\n");
10049 return PCI_ERS_RESULT_DISCONNECT;
10050 } else
10051 phba->intr_mode = intr_mode;
10052
10053 /* Log the current active interrupt mode */
10054 lpfc_log_intr_mode(phba, phba->intr_mode);
10055
8d63f375
LV		 10056 return PCI_ERS_RESULT_RECOVERED;
10057}
10058
10059/**
da0436e9 10060 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
e59058c4 10061 * @pdev: pointer to PCI device
8d63f375 10062 *
3772a991 10063 * This routine is called from the PCI subsystem for error handling to device
da0436e9 10064 * with SLI-4 interface spec. It is called when kernel error recovery tells
3772a991
JS		 10065 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10066 * error recovery. After this call, traffic can start to flow from this device
10067 * again.
da0436e9 10068 **/
3772a991 10069static void
da0436e9 10070lpfc_io_resume_s4(struct pci_dev *pdev)
8d63f375 10071{
75baf696
JS		 10072 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10073 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10074
10075 /*
10076 * In case of slot reset, as function reset is performed through
10077 * mailbox command which needs DMA to be enabled, this operation
10078 * has to be moved to the io resume phase. Taking device offline
10079 * will perform the necessary cleanup.
10080 */
10081 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10082 /* Perform device reset */
618a5230 10083 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
75baf696
JS		 10084 lpfc_offline(phba);
10085 lpfc_sli_brdrestart(phba);
10086 /* Bring the device back online */
10087 lpfc_online(phba);
10088 }
10089
10090 /* Clean up Advanced Error Reporting (AER) if needed */
10091 if (phba->hba_flag & HBA_AER_ENABLED)
10092 pci_cleanup_aer_uncorrect_error_status(pdev);
8d63f375
LV		 10093}
10094
3772a991
JS		 10095/**
10096 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10097 * @pdev: pointer to PCI device
10098 * @pid: pointer to PCI device identifier
10099 *
10100 * This routine is to be registered to the kernel's PCI subsystem. When an
10101 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10102 * at PCI device-specific information of the device and driver to see if the
10103 * driver state that it can support this kind of device. If the match is
10104 * successful, the driver core invokes this routine. This routine dispatches
10105 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10106 * do all the initialization that it needs to do to handle the HBA device
10107 * properly.
10108 *
10109 * Return code
10110 * 0 - driver can claim the device
10111 * negative value - driver can not claim the device
10112 **/
10113static int __devinit
10114lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10115{
10116 int rc;
8fa38513 10117 struct lpfc_sli_intf intf;
3772a991 10118
28baac74 10119 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
3772a991
JS		 10120 return -ENODEV;
10121
8fa38513 10122 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
28baac74 10123 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
da0436e9 10124 rc = lpfc_pci_probe_one_s4(pdev, pid);
8fa38513 10125 else
3772a991 10126 rc = lpfc_pci_probe_one_s3(pdev, pid);
8fa38513 10127
3772a991
JS		 10128 return rc;
10129}
10130
10131/**
10132 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10133 * @pdev: pointer to PCI device
10134 *
10135 * This routine is to be registered to the kernel's PCI subsystem. When an
10136 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10137 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10138 * remove routine, which will perform all the necessary cleanup for the
10139 * device to be removed from the PCI subsystem properly.
10140 **/
10141static void __devexit
10142lpfc_pci_remove_one(struct pci_dev *pdev)
10143{
10144 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10145 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10146
10147 switch (phba->pci_dev_grp) {
10148 case LPFC_PCI_DEV_LP:
10149 lpfc_pci_remove_one_s3(pdev);
10150 break;
da0436e9
JS		 10151 case LPFC_PCI_DEV_OC:
10152 lpfc_pci_remove_one_s4(pdev);
10153 break;
3772a991
JS		 10154 default:
10155 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10156 "1424 Invalid PCI device group: 0x%x\n",
10157 phba->pci_dev_grp);
10158 break;
10159 }
10160 return;
10161}
10162
10163/**
10164 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10165 * @pdev: pointer to PCI device
10166 * @msg: power management message
10167 *
10168 * This routine is to be registered to the kernel's PCI subsystem to support
10169 * system Power Management (PM). When PM invokes this method, it dispatches
10170 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10171 * suspend the device.
10172 *
10173 * Return code
10174 * 0 - driver suspended the device
10175 * Error otherwise
10176 **/
10177static int
10178lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10179{
10180 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10181 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10182 int rc = -ENODEV;
10183
10184 switch (phba->pci_dev_grp) {
10185 case LPFC_PCI_DEV_LP:
10186 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10187 break;
da0436e9
JS		 10188 case LPFC_PCI_DEV_OC:
10189 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10190 break;
3772a991
JS		 10191 default:
10192 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10193 "1425 Invalid PCI device group: 0x%x\n",
10194 phba->pci_dev_grp);
10195 break;
10196 }
10197 return rc;
10198}
10199
10200/**
10201 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10202 * @pdev: pointer to PCI device
10203 *
10204 * This routine is to be registered to the kernel's PCI subsystem to support
10205 * system Power Management (PM). When PM invokes this method, it dispatches
10206 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10207 * resume the device.
10208 *
10209 * Return code
10210 * 0 - driver suspended the device
10211 * Error otherwise
10212 **/
10213static int
10214lpfc_pci_resume_one(struct pci_dev *pdev)
10215{
10216 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10217 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10218 int rc = -ENODEV;
10219
10220 switch (phba->pci_dev_grp) {
10221 case LPFC_PCI_DEV_LP:
10222 rc = lpfc_pci_resume_one_s3(pdev);
10223 break;
da0436e9
JS		 10224 case LPFC_PCI_DEV_OC:
10225 rc = lpfc_pci_resume_one_s4(pdev);
10226 break;
3772a991
JS		 10227 default:
10228 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10229 "1426 Invalid PCI device group: 0x%x\n",
10230 phba->pci_dev_grp);
10231 break;
10232 }
10233 return rc;
10234}
10235
10236/**
10237 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
10238 * @pdev: pointer to PCI device.
10239 * @state: the current PCI connection state.
10240 *
10241 * This routine is registered to the PCI subsystem for error handling. This
10242 * function is called by the PCI subsystem after a PCI bus error affecting
10243 * this device has been detected. When this routine is invoked, it dispatches
10244 * the action to the proper SLI-3 or SLI-4 device error detected handling
10245 * routine, which will perform the proper error detected operation.
10246 *
10247 * Return codes
10248 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10249 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10250 **/
10251static pci_ers_result_t
10252lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
10253{
10254 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10255 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10256 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10257
10258 switch (phba->pci_dev_grp) {
10259 case LPFC_PCI_DEV_LP:
10260 rc = lpfc_io_error_detected_s3(pdev, state);
10261 break;
da0436e9
JS		 10262 case LPFC_PCI_DEV_OC:
10263 rc = lpfc_io_error_detected_s4(pdev, state);
10264 break;
3772a991
JS		 10265 default:
10266 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10267 "1427 Invalid PCI device group: 0x%x\n",
10268 phba->pci_dev_grp);
10269 break;
10270 }
10271 return rc;
10272}
10273
10274/**
10275 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
10276 * @pdev: pointer to PCI device.
10277 *
10278 * This routine is registered to the PCI subsystem for error handling. This
10279 * function is called after PCI bus has been reset to restart the PCI card
10280 * from scratch, as if from a cold-boot. When this routine is invoked, it
10281 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
10282 * routine, which will perform the proper device reset.
10283 *
10284 * Return codes
10285 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
10286 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10287 **/
10288static pci_ers_result_t
10289lpfc_io_slot_reset(struct pci_dev *pdev)
10290{
10291 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10292 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10293 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10294
10295 switch (phba->pci_dev_grp) {
10296 case LPFC_PCI_DEV_LP:
10297 rc = lpfc_io_slot_reset_s3(pdev);
10298 break;
da0436e9
JS		 10299 case LPFC_PCI_DEV_OC:
10300 rc = lpfc_io_slot_reset_s4(pdev);
10301 break;
3772a991
JS		 10302 default:
10303 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10304 "1428 Invalid PCI device group: 0x%x\n",
10305 phba->pci_dev_grp);
10306 break;
10307 }
10308 return rc;
10309}
10310
10311/**
10312 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
10313 * @pdev: pointer to PCI device
10314 *
10315 * This routine is registered to the PCI subsystem for error handling. It
10316 * is called when kernel error recovery tells the lpfc driver that it is
10317 * OK to resume normal PCI operation after PCI bus error recovery. When
10318 * this routine is invoked, it dispatches the action to the proper SLI-3
10319 * or SLI-4 device io_resume routine, which will resume the device operation.
10320 **/
10321static void
10322lpfc_io_resume(struct pci_dev *pdev)
10323{
10324 struct Scsi_Host *shost = pci_get_drvdata(pdev);
10325 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10326
10327 switch (phba->pci_dev_grp) {
10328 case LPFC_PCI_DEV_LP:
10329 lpfc_io_resume_s3(pdev);
10330 break;
da0436e9
JS		 10331 case LPFC_PCI_DEV_OC:
10332 lpfc_io_resume_s4(pdev);
10333 break;
3772a991
JS		 10334 default:
10335 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10336 "1429 Invalid PCI device group: 0x%x\n",
10337 phba->pci_dev_grp);
10338 break;
10339 }
10340 return;
10341}
10342
3ef6d24c
JS		 10343/**
10344 * lpfc_mgmt_open - method called when 'lpfcmgmt' is opened from userspace
10345 * @inode: pointer to the inode representing the lpfcmgmt device
10346 * @filep: pointer to the file representing the open lpfcmgmt device
10347 *
10348 * This routine puts a reference count on the lpfc module whenever the
10349 * character device is opened
10350 **/
10351static int
10352lpfc_mgmt_open(struct inode *inode, struct file *filep)
10353{
10354 try_module_get(THIS_MODULE);
10355 return 0;
10356}
10357
10358/**
10359 * lpfc_mgmt_release - method called when 'lpfcmgmt' is closed in userspace
10360 * @inode: pointer to the inode representing the lpfcmgmt device
10361 * @filep: pointer to the file representing the open lpfcmgmt device
10362 *
10363 * This routine removes a reference count from the lpfc module when the
10364 * character device is closed
10365 **/
10366static int
10367lpfc_mgmt_release(struct inode *inode, struct file *filep)
10368{
10369 module_put(THIS_MODULE);
10370 return 0;
10371}
10372
dea3101e 10373static struct pci_device_id lpfc_id_table[] = {
10374 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
10375 PCI_ANY_ID, PCI_ANY_ID, },
06325e74
JSEC		 10376 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
10377 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 10378 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
10379 PCI_ANY_ID, PCI_ANY_ID, },
10380 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
10381 PCI_ANY_ID, PCI_ANY_ID, },
10382 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
10383 PCI_ANY_ID, PCI_ANY_ID, },
10384 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
10385 PCI_ANY_ID, PCI_ANY_ID, },
10386 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
10387 PCI_ANY_ID, PCI_ANY_ID, },
10388 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
10389 PCI_ANY_ID, PCI_ANY_ID, },
10390 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
10391 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 10392 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
10393 PCI_ANY_ID, PCI_ANY_ID, },
10394 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
10395 PCI_ANY_ID, PCI_ANY_ID, },
10396 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
10397 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 10398 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
10399 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 10400 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
10401 PCI_ANY_ID, PCI_ANY_ID, },
10402 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
10403 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 10404 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
10405 PCI_ANY_ID, PCI_ANY_ID, },
10406 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
10407 PCI_ANY_ID, PCI_ANY_ID, },
10408 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
10409 PCI_ANY_ID, PCI_ANY_ID, },
84774a4d
JS		 10410 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
10411 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 10412 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
10413 PCI_ANY_ID, PCI_ANY_ID, },
10414 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
10415 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 10416 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
10417 PCI_ANY_ID, PCI_ANY_ID, },
10418 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
10419 PCI_ANY_ID, PCI_ANY_ID, },
10420 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
10421 PCI_ANY_ID, PCI_ANY_ID, },
10422 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
10423 PCI_ANY_ID, PCI_ANY_ID, },
10424 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
10425 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 10426 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
10427 PCI_ANY_ID, PCI_ANY_ID, },
10428 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
10429 PCI_ANY_ID, PCI_ANY_ID, },
b87eab38
JS		 10430 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
10431 PCI_ANY_ID, PCI_ANY_ID, },
10432 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
10433 PCI_ANY_ID, PCI_ANY_ID, },
10434 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
10435 PCI_ANY_ID, PCI_ANY_ID, },
10436 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
10437 PCI_ANY_ID, PCI_ANY_ID, },
10438 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
10439 PCI_ANY_ID, PCI_ANY_ID, },
10440 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
10441 PCI_ANY_ID, PCI_ANY_ID, },
84774a4d
JS		 10442 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
10443 PCI_ANY_ID, PCI_ANY_ID, },
10444 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
10445 PCI_ANY_ID, PCI_ANY_ID, },
10446 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
10447 PCI_ANY_ID, PCI_ANY_ID, },
3772a991
JS		 10448 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
10449 PCI_ANY_ID, PCI_ANY_ID, },
a747c9ce
JS		 10450 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
10451 PCI_ANY_ID, PCI_ANY_ID, },
10452 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
6669f9bb 10453 PCI_ANY_ID, PCI_ANY_ID, },
98fc5dd9
JS		 10454 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
10455 PCI_ANY_ID, PCI_ANY_ID, },
085c647c
JS		 10456 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
10457 PCI_ANY_ID, PCI_ANY_ID, },
10458 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
10459 PCI_ANY_ID, PCI_ANY_ID, },
c0c11512
JS		 10460 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
10461 PCI_ANY_ID, PCI_ANY_ID, },
10462 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
10463 PCI_ANY_ID, PCI_ANY_ID, },
f8cafd38
JS		 10464 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
10465 PCI_ANY_ID, PCI_ANY_ID, },
10466 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
10467 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 10468 { 0 }
10469};
10470
10471MODULE_DEVICE_TABLE(pci, lpfc_id_table);
10472
8d63f375
LV		 10473static struct pci_error_handlers lpfc_err_handler = {
10474 .error_detected = lpfc_io_error_detected,
10475 .slot_reset = lpfc_io_slot_reset,
10476 .resume = lpfc_io_resume,
10477};
10478
dea3101e 10479static struct pci_driver lpfc_driver = {
10480 .name = LPFC_DRIVER_NAME,
10481 .id_table = lpfc_id_table,
10482 .probe = lpfc_pci_probe_one,
10483 .remove = __devexit_p(lpfc_pci_remove_one),
3a55b532 10484 .suspend = lpfc_pci_suspend_one,
3772a991 10485 .resume = lpfc_pci_resume_one,
2e0fef85 10486 .err_handler = &lpfc_err_handler,
dea3101e 10487};
10488
3ef6d24c
JS		 10489static const struct file_operations lpfc_mgmt_fop = {
10490 .open = lpfc_mgmt_open,
10491 .release = lpfc_mgmt_release,
10492};
10493
10494static struct miscdevice lpfc_mgmt_dev = {
10495 .minor = MISC_DYNAMIC_MINOR,
10496 .name = "lpfcmgmt",
10497 .fops = &lpfc_mgmt_fop,
10498};
10499
e59058c4 10500/**
3621a710 10501 * lpfc_init - lpfc module initialization routine
e59058c4
JS		 10502 *
10503 * This routine is to be invoked when the lpfc module is loaded into the
10504 * kernel. The special kernel macro module_init() is used to indicate the
10505 * role of this routine to the kernel as lpfc module entry point.
10506 *
10507 * Return codes
10508 * 0 - successful
10509 * -ENOMEM - FC attach transport failed
10510 * all others - failed
10511 */
dea3101e 10512static int __init
10513lpfc_init(void)
10514{
10515 int error = 0;
10516
10517 printk(LPFC_MODULE_DESC "\n");
c44ce173 10518 printk(LPFC_COPYRIGHT "\n");
dea3101e 10519
3ef6d24c
JS		 10520 error = misc_register(&lpfc_mgmt_dev);
10521 if (error)
10522 printk(KERN_ERR "Could not register lpfcmgmt device, "
10523 "misc_register returned with status %d", error);
10524
7ee5d43e
JS		 10525 if (lpfc_enable_npiv) {
10526 lpfc_transport_functions.vport_create = lpfc_vport_create;
10527 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
10528 }
dea3101e 10529 lpfc_transport_template =
10530 fc_attach_transport(&lpfc_transport_functions);
7ee5d43e 10531 if (lpfc_transport_template == NULL)
dea3101e 10532 return -ENOMEM;
7ee5d43e 10533 if (lpfc_enable_npiv) {
7ee5d43e 10534 lpfc_vport_transport_template =
98c9ea5c
JS		 10535 fc_attach_transport(&lpfc_vport_transport_functions);
10536 if (lpfc_vport_transport_template == NULL) {
10537 fc_release_transport(lpfc_transport_template);
7ee5d43e 10538 return -ENOMEM;
98c9ea5c 10539 }
7ee5d43e 10540 }
dea3101e 10541 error = pci_register_driver(&lpfc_driver);
92d7f7b0 10542 if (error) {
dea3101e 10543 fc_release_transport(lpfc_transport_template);
d7c255b2
JS		 10544 if (lpfc_enable_npiv)
10545 fc_release_transport(lpfc_vport_transport_template);
92d7f7b0 10546 }
dea3101e 10547
10548 return error;
10549}
10550
e59058c4 10551/**
3621a710 10552 * lpfc_exit - lpfc module removal routine
e59058c4
JS		 10553 *
10554 * This routine is invoked when the lpfc module is removed from the kernel.
10555 * The special kernel macro module_exit() is used to indicate the role of
10556 * this routine to the kernel as lpfc module exit point.
10557 */
dea3101e 10558static void __exit
10559lpfc_exit(void)
10560{
3ef6d24c 10561 misc_deregister(&lpfc_mgmt_dev);
dea3101e 10562 pci_unregister_driver(&lpfc_driver);
10563 fc_release_transport(lpfc_transport_template);
7ee5d43e
JS		 10564 if (lpfc_enable_npiv)
10565 fc_release_transport(lpfc_vport_transport_template);
81301a9b 10566 if (_dump_buf_data) {
6a9c52cf
JS		 10567 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
10568 "_dump_buf_data at 0x%p\n",
81301a9b
JS		 10569 (1L << _dump_buf_data_order), _dump_buf_data);
10570 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
10571 }
10572
10573 if (_dump_buf_dif) {
6a9c52cf
JS		 10574 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
10575 "_dump_buf_dif at 0x%p\n",
81301a9b
JS		 10576 (1L << _dump_buf_dif_order), _dump_buf_dif);
10577 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
10578 }
dea3101e 10579}
10580
10581module_init(lpfc_init);
10582module_exit(lpfc_exit);
10583MODULE_LICENSE("GPL");
10584MODULE_DESCRIPTION(LPFC_MODULE_DESC);
10585MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
10586MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
Linux kernel - Deliverables
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