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[SCSI] lpfc 8.3.24: Add resource extent support
[deliverable/linux.git] / drivers / scsi / lpfc / lpfc_init.c
CommitLineData
dea3101e 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
c44ce173 3 * Fibre Channel Host Bus Adapters. *
792581de 4 * Copyright (C) 2004-2011 Emulex. All rights reserved. *
c44ce173 5 * EMULEX and SLI are trademarks of Emulex. *
dea3101e 6 * www.emulex.com *
c44ce173 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
dea3101e 8 * *
9 * This program is free software; you can redistribute it and/or *
c44ce173
JSEC		 10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
dea3101e 20 *******************************************************************/
21
dea3101e 22#include <linux/blkdev.h>
23#include <linux/delay.h>
24#include <linux/dma-mapping.h>
25#include <linux/idr.h>
26#include <linux/interrupt.h>
27#include <linux/kthread.h>
28#include <linux/pci.h>
29#include <linux/spinlock.h>
92d7f7b0 30#include <linux/ctype.h>
0d878419 31#include <linux/aer.h>
5a0e3ad6 32#include <linux/slab.h>
52d52440 33#include <linux/firmware.h>
dea3101e 34
91886523 35#include <scsi/scsi.h>
dea3101e 36#include <scsi/scsi_device.h>
37#include <scsi/scsi_host.h>
38#include <scsi/scsi_transport_fc.h>
39
da0436e9 40#include "lpfc_hw4.h"
dea3101e 41#include "lpfc_hw.h"
42#include "lpfc_sli.h"
da0436e9 43#include "lpfc_sli4.h"
ea2151b4 44#include "lpfc_nl.h"
dea3101e 45#include "lpfc_disc.h"
46#include "lpfc_scsi.h"
47#include "lpfc.h"
48#include "lpfc_logmsg.h"
49#include "lpfc_crtn.h"
92d7f7b0 50#include "lpfc_vport.h"
dea3101e 51#include "lpfc_version.h"
52
81301a9b
JS		 53char *_dump_buf_data;
54unsigned long _dump_buf_data_order;
55char *_dump_buf_dif;
56unsigned long _dump_buf_dif_order;
57spinlock_t _dump_buf_lock;
58
dea3101e 59static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
60static int lpfc_post_rcv_buf(struct lpfc_hba *);
da0436e9
JS		 61static int lpfc_sli4_queue_create(struct lpfc_hba *);
62static void lpfc_sli4_queue_destroy(struct lpfc_hba *);
63static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
64static int lpfc_setup_endian_order(struct lpfc_hba *);
65static int lpfc_sli4_read_config(struct lpfc_hba *);
66static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
67static void lpfc_free_sgl_list(struct lpfc_hba *);
68static int lpfc_init_sgl_list(struct lpfc_hba *);
69static int lpfc_init_active_sgl_array(struct lpfc_hba *);
70static void lpfc_free_active_sgl(struct lpfc_hba *);
71static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
72static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
73static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
74static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
75static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
dea3101e 76
77static struct scsi_transport_template *lpfc_transport_template = NULL;
92d7f7b0 78static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
dea3101e 79static DEFINE_IDR(lpfc_hba_index);
80
e59058c4 81/**
3621a710 82 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
e59058c4
JS		 83 * @phba: pointer to lpfc hba data structure.
84 *
85 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
86 * mailbox command. It retrieves the revision information from the HBA and
87 * collects the Vital Product Data (VPD) about the HBA for preparing the
88 * configuration of the HBA.
89 *
90 * Return codes:
91 * 0 - success.
92 * -ERESTART - requests the SLI layer to reset the HBA and try again.
93 * Any other value - indicates an error.
94 **/
dea3101e 95int
2e0fef85 96lpfc_config_port_prep(struct lpfc_hba *phba)
dea3101e 97{
98 lpfc_vpd_t *vp = &phba->vpd;
99 int i = 0, rc;
100 LPFC_MBOXQ_t *pmb;
101 MAILBOX_t *mb;
102 char *lpfc_vpd_data = NULL;
103 uint16_t offset = 0;
104 static char licensed[56] =
105 "key unlock for use with gnu public licensed code only\0";
65a29c16 106 static int init_key = 1;
dea3101e 107
108 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
109 if (!pmb) {
2e0fef85 110 phba->link_state = LPFC_HBA_ERROR;
dea3101e 111 return -ENOMEM;
112 }
113
04c68496 114 mb = &pmb->u.mb;
2e0fef85 115 phba->link_state = LPFC_INIT_MBX_CMDS;
dea3101e 116
117 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
65a29c16
JS		 118 if (init_key) {
119 uint32_t *ptext = (uint32_t *) licensed;
dea3101e 120
65a29c16
JS		 121 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
122 *ptext = cpu_to_be32(*ptext);
123 init_key = 0;
124 }
dea3101e 125
126 lpfc_read_nv(phba, pmb);
127 memset((char*)mb->un.varRDnvp.rsvd3, 0,
128 sizeof (mb->un.varRDnvp.rsvd3));
129 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
130 sizeof (licensed));
131
132 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
133
134 if (rc != MBX_SUCCESS) {
ed957684 135 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
e8b62011 136 "0324 Config Port initialization "
dea3101e 137 "error, mbxCmd x%x READ_NVPARM, "
138 "mbxStatus x%x\n",
dea3101e 139 mb->mbxCommand, mb->mbxStatus);
140 mempool_free(pmb, phba->mbox_mem_pool);
141 return -ERESTART;
142 }
143 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
2e0fef85
JS		 144 sizeof(phba->wwnn));
145 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
146 sizeof(phba->wwpn));
dea3101e 147 }
148
92d7f7b0
JS		 149 phba->sli3_options = 0x0;
150
dea3101e 151 /* Setup and issue mailbox READ REV command */
152 lpfc_read_rev(phba, pmb);
153 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
154 if (rc != MBX_SUCCESS) {
ed957684 155 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 156 "0439 Adapter failed to init, mbxCmd x%x "
dea3101e 157 "READ_REV, mbxStatus x%x\n",
dea3101e 158 mb->mbxCommand, mb->mbxStatus);
159 mempool_free( pmb, phba->mbox_mem_pool);
160 return -ERESTART;
161 }
162
92d7f7b0 163
1de933f3
JSEC		 164 /*
165 * The value of rr must be 1 since the driver set the cv field to 1.
166 * This setting requires the FW to set all revision fields.
dea3101e 167 */
1de933f3 168 if (mb->un.varRdRev.rr == 0) {
dea3101e 169 vp->rev.rBit = 0;
1de933f3 170 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011
JS		 171 "0440 Adapter failed to init, READ_REV has "
172 "missing revision information.\n");
dea3101e 173 mempool_free(pmb, phba->mbox_mem_pool);
174 return -ERESTART;
dea3101e 175 }
176
495a714c
JS		 177 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
178 mempool_free(pmb, phba->mbox_mem_pool);
ed957684 179 return -EINVAL;
495a714c 180 }
ed957684 181
dea3101e 182 /* Save information as VPD data */
1de933f3 183 vp->rev.rBit = 1;
92d7f7b0 184 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
1de933f3
JSEC		 185 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
186 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
187 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
188 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
dea3101e 189 vp->rev.biuRev = mb->un.varRdRev.biuRev;
190 vp->rev.smRev = mb->un.varRdRev.smRev;
191 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
192 vp->rev.endecRev = mb->un.varRdRev.endecRev;
193 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
194 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
195 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
196 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
197 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
198 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
199
92d7f7b0
JS		 200 /* If the sli feature level is less then 9, we must
201 * tear down all RPIs and VPIs on link down if NPIV
202 * is enabled.
203 */
204 if (vp->rev.feaLevelHigh < 9)
205 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
206
dea3101e 207 if (lpfc_is_LC_HBA(phba->pcidev->device))
208 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
209 sizeof (phba->RandomData));
210
dea3101e 211 /* Get adapter VPD information */
dea3101e 212 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
213 if (!lpfc_vpd_data)
d7c255b2 214 goto out_free_mbox;
dea3101e 215 do {
a0c87cbd 216 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
dea3101e 217 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
218
219 if (rc != MBX_SUCCESS) {
220 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011 221 "0441 VPD not present on adapter, "
dea3101e 222 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
dea3101e 223 mb->mbxCommand, mb->mbxStatus);
74b72a59 224 mb->un.varDmp.word_cnt = 0;
dea3101e 225 }
04c68496
JS		 226 /* dump mem may return a zero when finished or we got a
227 * mailbox error, either way we are done.
228 */
229 if (mb->un.varDmp.word_cnt == 0)
230 break;
74b72a59
JW		 231 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
232 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
d7c255b2
JS		 233 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
234 lpfc_vpd_data + offset,
92d7f7b0 235 mb->un.varDmp.word_cnt);
dea3101e 236 offset += mb->un.varDmp.word_cnt;
74b72a59
JW		 237 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
238 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
dea3101e 239
240 kfree(lpfc_vpd_data);
dea3101e 241out_free_mbox:
242 mempool_free(pmb, phba->mbox_mem_pool);
243 return 0;
244}
245
e59058c4 246/**
3621a710 247 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
e59058c4
JS		 248 * @phba: pointer to lpfc hba data structure.
249 * @pmboxq: pointer to the driver internal queue element for mailbox command.
250 *
251 * This is the completion handler for driver's configuring asynchronous event
252 * mailbox command to the device. If the mailbox command returns successfully,
253 * it will set internal async event support flag to 1; otherwise, it will
254 * set internal async event support flag to 0.
255 **/
57127f15
JS		 256static void
257lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
258{
04c68496 259 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
57127f15
JS		 260 phba->temp_sensor_support = 1;
261 else
262 phba->temp_sensor_support = 0;
263 mempool_free(pmboxq, phba->mbox_mem_pool);
264 return;
265}
266
97207482 267/**
3621a710 268 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
97207482
JS		 269 * @phba: pointer to lpfc hba data structure.
270 * @pmboxq: pointer to the driver internal queue element for mailbox command.
271 *
272 * This is the completion handler for dump mailbox command for getting
273 * wake up parameters. When this command complete, the response contain
274 * Option rom version of the HBA. This function translate the version number
275 * into a human readable string and store it in OptionROMVersion.
276 **/
277static void
278lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
279{
280 struct prog_id *prg;
281 uint32_t prog_id_word;
282 char dist = ' ';
283 /* character array used for decoding dist type. */
284 char dist_char[] = "nabx";
285
04c68496 286 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
9f1e1b50 287 mempool_free(pmboxq, phba->mbox_mem_pool);
97207482 288 return;
9f1e1b50 289 }
97207482
JS		 290
291 prg = (struct prog_id *) &prog_id_word;
292
293 /* word 7 contain option rom version */
04c68496 294 prog_id_word = pmboxq->u.mb.un.varWords[7];
97207482
JS		 295
296 /* Decode the Option rom version word to a readable string */
297 if (prg->dist < 4)
298 dist = dist_char[prg->dist];
299
300 if ((prg->dist == 3) && (prg->num == 0))
301 sprintf(phba->OptionROMVersion, "%d.%d%d",
302 prg->ver, prg->rev, prg->lev);
303 else
304 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
305 prg->ver, prg->rev, prg->lev,
306 dist, prg->num);
9f1e1b50 307 mempool_free(pmboxq, phba->mbox_mem_pool);
97207482
JS		 308 return;
309}
310
0558056c
JS		 311/**
312 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
313 * cfg_soft_wwnn, cfg_soft_wwpn
314 * @vport: pointer to lpfc vport data structure.
315 *
316 *
317 * Return codes
318 * None.
319 **/
320void
321lpfc_update_vport_wwn(struct lpfc_vport *vport)
322{
323 /* If the soft name exists then update it using the service params */
324 if (vport->phba->cfg_soft_wwnn)
325 u64_to_wwn(vport->phba->cfg_soft_wwnn,
326 vport->fc_sparam.nodeName.u.wwn);
327 if (vport->phba->cfg_soft_wwpn)
328 u64_to_wwn(vport->phba->cfg_soft_wwpn,
329 vport->fc_sparam.portName.u.wwn);
330
331 /*
332 * If the name is empty or there exists a soft name
333 * then copy the service params name, otherwise use the fc name
334 */
335 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
336 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
337 sizeof(struct lpfc_name));
338 else
339 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
340 sizeof(struct lpfc_name));
341
342 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
343 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
344 sizeof(struct lpfc_name));
345 else
346 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
347 sizeof(struct lpfc_name));
348}
349
e59058c4 350/**
3621a710 351 * lpfc_config_port_post - Perform lpfc initialization after config port
e59058c4
JS		 352 * @phba: pointer to lpfc hba data structure.
353 *
354 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
355 * command call. It performs all internal resource and state setups on the
356 * port: post IOCB buffers, enable appropriate host interrupt attentions,
357 * ELS ring timers, etc.
358 *
359 * Return codes
360 * 0 - success.
361 * Any other value - error.
362 **/
dea3101e 363int
2e0fef85 364lpfc_config_port_post(struct lpfc_hba *phba)
dea3101e 365{
2e0fef85 366 struct lpfc_vport *vport = phba->pport;
a257bf90 367 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 368 LPFC_MBOXQ_t *pmb;
369 MAILBOX_t *mb;
370 struct lpfc_dmabuf *mp;
371 struct lpfc_sli *psli = &phba->sli;
372 uint32_t status, timeout;
2e0fef85
JS		 373 int i, j;
374 int rc;
dea3101e 375
7af67051
JS		 376 spin_lock_irq(&phba->hbalock);
377 /*
378 * If the Config port completed correctly the HBA is not
379 * over heated any more.
380 */
381 if (phba->over_temp_state == HBA_OVER_TEMP)
382 phba->over_temp_state = HBA_NORMAL_TEMP;
383 spin_unlock_irq(&phba->hbalock);
384
dea3101e 385 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
386 if (!pmb) {
2e0fef85 387 phba->link_state = LPFC_HBA_ERROR;
dea3101e 388 return -ENOMEM;
389 }
04c68496 390 mb = &pmb->u.mb;
dea3101e 391
dea3101e 392 /* Get login parameters for NID. */
9f1177a3
JS		 393 rc = lpfc_read_sparam(phba, pmb, 0);
394 if (rc) {
395 mempool_free(pmb, phba->mbox_mem_pool);
396 return -ENOMEM;
397 }
398
ed957684 399 pmb->vport = vport;
dea3101e 400 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
ed957684 401 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 402 "0448 Adapter failed init, mbxCmd x%x "
dea3101e 403 "READ_SPARM mbxStatus x%x\n",
dea3101e 404 mb->mbxCommand, mb->mbxStatus);
2e0fef85 405 phba->link_state = LPFC_HBA_ERROR;
dea3101e 406 mp = (struct lpfc_dmabuf *) pmb->context1;
9f1177a3 407 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 408 lpfc_mbuf_free(phba, mp->virt, mp->phys);
409 kfree(mp);
410 return -EIO;
411 }
412
413 mp = (struct lpfc_dmabuf *) pmb->context1;
414
2e0fef85 415 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
dea3101e 416 lpfc_mbuf_free(phba, mp->virt, mp->phys);
417 kfree(mp);
418 pmb->context1 = NULL;
0558056c 419 lpfc_update_vport_wwn(vport);
a257bf90
JS		 420
421 /* Update the fc_host data structures with new wwn. */
422 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
423 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
21e9a0a5 424 fc_host_max_npiv_vports(shost) = phba->max_vpi;
a257bf90 425
dea3101e 426 /* If no serial number in VPD data, use low 6 bytes of WWNN */
427 /* This should be consolidated into parse_vpd ? - mr */
428 if (phba->SerialNumber[0] == 0) {
429 uint8_t *outptr;
430
2e0fef85 431 outptr = &vport->fc_nodename.u.s.IEEE[0];
dea3101e 432 for (i = 0; i < 12; i++) {
433 status = *outptr++;
434 j = ((status & 0xf0) >> 4);
435 if (j <= 9)
436 phba->SerialNumber[i] =
437 (char)((uint8_t) 0x30 + (uint8_t) j);
438 else
439 phba->SerialNumber[i] =
440 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
441 i++;
442 j = (status & 0xf);
443 if (j <= 9)
444 phba->SerialNumber[i] =
445 (char)((uint8_t) 0x30 + (uint8_t) j);
446 else
447 phba->SerialNumber[i] =
448 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
449 }
450 }
451
dea3101e 452 lpfc_read_config(phba, pmb);
ed957684 453 pmb->vport = vport;
dea3101e 454 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
ed957684 455 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 456 "0453 Adapter failed to init, mbxCmd x%x "
dea3101e 457 "READ_CONFIG, mbxStatus x%x\n",
dea3101e 458 mb->mbxCommand, mb->mbxStatus);
2e0fef85 459 phba->link_state = LPFC_HBA_ERROR;
dea3101e 460 mempool_free( pmb, phba->mbox_mem_pool);
461 return -EIO;
462 }
463
a0c87cbd
JS		 464 /* Check if the port is disabled */
465 lpfc_sli_read_link_ste(phba);
466
dea3101e 467 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
468 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
469 phba->cfg_hba_queue_depth =
f1126688
JS		 470 (mb->un.varRdConfig.max_xri + 1) -
471 lpfc_sli4_get_els_iocb_cnt(phba);
dea3101e 472
473 phba->lmt = mb->un.varRdConfig.lmt;
74b72a59
JW		 474
475 /* Get the default values for Model Name and Description */
476 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
477
76a95d75
JS		 478 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_16G)
479 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G)
74b72a59 480 && !(phba->lmt & LMT_1Gb))
76a95d75 481 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G)
74b72a59 482 && !(phba->lmt & LMT_2Gb))
76a95d75 483 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G)
74b72a59 484 && !(phba->lmt & LMT_4Gb))
76a95d75 485 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G)
74b72a59 486 && !(phba->lmt & LMT_8Gb))
76a95d75
JS		 487 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G)
488 && !(phba->lmt & LMT_10Gb))
489 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G)
490 && !(phba->lmt & LMT_16Gb))) {
74b72a59 491 /* Reset link speed to auto */
ab56dc2e 492 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
e8b62011 493 "1302 Invalid speed for this board: "
dea3101e 494 "Reset link speed to auto: x%x\n",
dea3101e 495 phba->cfg_link_speed);
76a95d75 496 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
dea3101e 497 }
498
2e0fef85 499 phba->link_state = LPFC_LINK_DOWN;
dea3101e 500
0b727fea 501 /* Only process IOCBs on ELS ring till hba_state is READY */
a4bc3379
JS		 502 if (psli->ring[psli->extra_ring].cmdringaddr)
503 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
dea3101e 504 if (psli->ring[psli->fcp_ring].cmdringaddr)
505 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
506 if (psli->ring[psli->next_ring].cmdringaddr)
507 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
508
509 /* Post receive buffers for desired rings */
ed957684
JS		 510 if (phba->sli_rev != 3)
511 lpfc_post_rcv_buf(phba);
dea3101e 512
9399627f
JS		 513 /*
514 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
515 */
516 if (phba->intr_type == MSIX) {
517 rc = lpfc_config_msi(phba, pmb);
518 if (rc) {
519 mempool_free(pmb, phba->mbox_mem_pool);
520 return -EIO;
521 }
522 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
523 if (rc != MBX_SUCCESS) {
524 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
525 "0352 Config MSI mailbox command "
526 "failed, mbxCmd x%x, mbxStatus x%x\n",
04c68496
JS		 527 pmb->u.mb.mbxCommand,
528 pmb->u.mb.mbxStatus);
9399627f
JS		 529 mempool_free(pmb, phba->mbox_mem_pool);
530 return -EIO;
531 }
532 }
533
04c68496 534 spin_lock_irq(&phba->hbalock);
9399627f
JS		 535 /* Initialize ERATT handling flag */
536 phba->hba_flag &= ~HBA_ERATT_HANDLED;
537
dea3101e 538 /* Enable appropriate host interrupts */
9940b97b
JS		 539 if (lpfc_readl(phba->HCregaddr, &status)) {
540 spin_unlock_irq(&phba->hbalock);
541 return -EIO;
542 }
dea3101e 543 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
544 if (psli->num_rings > 0)
545 status |= HC_R0INT_ENA;
546 if (psli->num_rings > 1)
547 status |= HC_R1INT_ENA;
548 if (psli->num_rings > 2)
549 status |= HC_R2INT_ENA;
550 if (psli->num_rings > 3)
551 status |= HC_R3INT_ENA;
552
875fbdfe
JSEC		 553 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
554 (phba->cfg_poll & DISABLE_FCP_RING_INT))
9399627f 555 status &= ~(HC_R0INT_ENA);
875fbdfe 556
dea3101e 557 writel(status, phba->HCregaddr);
558 readl(phba->HCregaddr); /* flush */
2e0fef85 559 spin_unlock_irq(&phba->hbalock);
dea3101e 560
9399627f
JS		 561 /* Set up ring-0 (ELS) timer */
562 timeout = phba->fc_ratov * 2;
2e0fef85 563 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
9399627f 564 /* Set up heart beat (HB) timer */
858c9f6c
JS		 565 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
566 phba->hb_outstanding = 0;
567 phba->last_completion_time = jiffies;
9399627f
JS		 568 /* Set up error attention (ERATT) polling timer */
569 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
dea3101e 570
a0c87cbd
JS		 571 if (phba->hba_flag & LINK_DISABLED) {
572 lpfc_printf_log(phba,
573 KERN_ERR, LOG_INIT,
574 "2598 Adapter Link is disabled.\n");
575 lpfc_down_link(phba, pmb);
576 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
577 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
578 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
579 lpfc_printf_log(phba,
580 KERN_ERR, LOG_INIT,
581 "2599 Adapter failed to issue DOWN_LINK"
582 " mbox command rc 0x%x\n", rc);
583
584 mempool_free(pmb, phba->mbox_mem_pool);
585 return -EIO;
586 }
e40a02c1 587 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
a0c87cbd
JS		 588 lpfc_init_link(phba, pmb, phba->cfg_topology,
589 phba->cfg_link_speed);
590 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
591 lpfc_set_loopback_flag(phba);
592 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
593 if (rc != MBX_SUCCESS) {
594 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 595 "0454 Adapter failed to init, mbxCmd x%x "
dea3101e 596 "INIT_LINK, mbxStatus x%x\n",
dea3101e 597 mb->mbxCommand, mb->mbxStatus);
598
a0c87cbd
JS		 599 /* Clear all interrupt enable conditions */
600 writel(0, phba->HCregaddr);
601 readl(phba->HCregaddr); /* flush */
602 /* Clear all pending interrupts */
603 writel(0xffffffff, phba->HAregaddr);
604 readl(phba->HAregaddr); /* flush */
a0c87cbd
JS		 605 phba->link_state = LPFC_HBA_ERROR;
606 if (rc != MBX_BUSY)
607 mempool_free(pmb, phba->mbox_mem_pool);
608 return -EIO;
609 }
dea3101e 610 }
611 /* MBOX buffer will be freed in mbox compl */
57127f15 612 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9f1177a3
JS		 613 if (!pmb) {
614 phba->link_state = LPFC_HBA_ERROR;
615 return -ENOMEM;
616 }
617
57127f15
JS		 618 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
619 pmb->mbox_cmpl = lpfc_config_async_cmpl;
620 pmb->vport = phba->pport;
621 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
dea3101e 622
57127f15
JS		 623 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
624 lpfc_printf_log(phba,
625 KERN_ERR,
626 LOG_INIT,
627 "0456 Adapter failed to issue "
e4e74273 628 "ASYNCEVT_ENABLE mbox status x%x\n",
57127f15
JS		 629 rc);
630 mempool_free(pmb, phba->mbox_mem_pool);
631 }
97207482
JS		 632
633 /* Get Option rom version */
634 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9f1177a3
JS		 635 if (!pmb) {
636 phba->link_state = LPFC_HBA_ERROR;
637 return -ENOMEM;
638 }
639
97207482
JS		 640 lpfc_dump_wakeup_param(phba, pmb);
641 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
642 pmb->vport = phba->pport;
643 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
644
645 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
646 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
e4e74273 647 "to get Option ROM version status x%x\n", rc);
97207482
JS		 648 mempool_free(pmb, phba->mbox_mem_pool);
649 }
650
d7c255b2 651 return 0;
ce8b3ce5
JS		 652}
653
84d1b006
JS		 654/**
655 * lpfc_hba_init_link - Initialize the FC link
656 * @phba: pointer to lpfc hba data structure.
6e7288d9 657 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
84d1b006
JS		 658 *
659 * This routine will issue the INIT_LINK mailbox command call.
660 * It is available to other drivers through the lpfc_hba data
661 * structure for use as a delayed link up mechanism with the
662 * module parameter lpfc_suppress_link_up.
663 *
664 * Return code
665 * 0 - success
666 * Any other value - error
667 **/
668int
6e7288d9 669lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
84d1b006
JS		 670{
671 struct lpfc_vport *vport = phba->pport;
672 LPFC_MBOXQ_t *pmb;
673 MAILBOX_t *mb;
674 int rc;
675
676 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
677 if (!pmb) {
678 phba->link_state = LPFC_HBA_ERROR;
679 return -ENOMEM;
680 }
681 mb = &pmb->u.mb;
682 pmb->vport = vport;
683
76a95d75 684 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
84d1b006
JS		 685 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
686 lpfc_set_loopback_flag(phba);
6e7288d9 687 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
76a95d75 688 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
84d1b006
JS		 689 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
690 "0498 Adapter failed to init, mbxCmd x%x "
691 "INIT_LINK, mbxStatus x%x\n",
692 mb->mbxCommand, mb->mbxStatus);
76a95d75
JS		 693 if (phba->sli_rev <= LPFC_SLI_REV3) {
694 /* Clear all interrupt enable conditions */
695 writel(0, phba->HCregaddr);
696 readl(phba->HCregaddr); /* flush */
697 /* Clear all pending interrupts */
698 writel(0xffffffff, phba->HAregaddr);
699 readl(phba->HAregaddr); /* flush */
700 }
84d1b006 701 phba->link_state = LPFC_HBA_ERROR;
6e7288d9 702 if (rc != MBX_BUSY || flag == MBX_POLL)
84d1b006
JS		 703 mempool_free(pmb, phba->mbox_mem_pool);
704 return -EIO;
705 }
e40a02c1 706 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
6e7288d9
JS		 707 if (flag == MBX_POLL)
708 mempool_free(pmb, phba->mbox_mem_pool);
84d1b006
JS		 709
710 return 0;
711}
712
713/**
714 * lpfc_hba_down_link - this routine downs the FC link
6e7288d9
JS		 715 * @phba: pointer to lpfc hba data structure.
716 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
84d1b006
JS		 717 *
718 * This routine will issue the DOWN_LINK mailbox command call.
719 * It is available to other drivers through the lpfc_hba data
720 * structure for use to stop the link.
721 *
722 * Return code
723 * 0 - success
724 * Any other value - error
725 **/
726int
6e7288d9 727lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
84d1b006
JS		 728{
729 LPFC_MBOXQ_t *pmb;
730 int rc;
731
732 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
733 if (!pmb) {
734 phba->link_state = LPFC_HBA_ERROR;
735 return -ENOMEM;
736 }
737
738 lpfc_printf_log(phba,
739 KERN_ERR, LOG_INIT,
740 "0491 Adapter Link is disabled.\n");
741 lpfc_down_link(phba, pmb);
742 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
6e7288d9 743 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
84d1b006
JS		 744 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
745 lpfc_printf_log(phba,
746 KERN_ERR, LOG_INIT,
747 "2522 Adapter failed to issue DOWN_LINK"
748 " mbox command rc 0x%x\n", rc);
749
750 mempool_free(pmb, phba->mbox_mem_pool);
751 return -EIO;
752 }
6e7288d9
JS		 753 if (flag == MBX_POLL)
754 mempool_free(pmb, phba->mbox_mem_pool);
755
84d1b006
JS		 756 return 0;
757}
758
e59058c4 759/**
3621a710 760 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
e59058c4
JS		 761 * @phba: pointer to lpfc HBA data structure.
762 *
763 * This routine will do LPFC uninitialization before the HBA is reset when
764 * bringing down the SLI Layer.
765 *
766 * Return codes
767 * 0 - success.
768 * Any other value - error.
769 **/
dea3101e 770int
2e0fef85 771lpfc_hba_down_prep(struct lpfc_hba *phba)
dea3101e 772{
1b32f6aa
JS		 773 struct lpfc_vport **vports;
774 int i;
3772a991
JS		 775
776 if (phba->sli_rev <= LPFC_SLI_REV3) {
777 /* Disable interrupts */
778 writel(0, phba->HCregaddr);
779 readl(phba->HCregaddr); /* flush */
780 }
dea3101e 781
1b32f6aa
JS		 782 if (phba->pport->load_flag & FC_UNLOADING)
783 lpfc_cleanup_discovery_resources(phba->pport);
784 else {
785 vports = lpfc_create_vport_work_array(phba);
786 if (vports != NULL)
3772a991
JS		 787 for (i = 0; i <= phba->max_vports &&
788 vports[i] != NULL; i++)
1b32f6aa
JS		 789 lpfc_cleanup_discovery_resources(vports[i]);
790 lpfc_destroy_vport_work_array(phba, vports);
7f5f3d0d
JS		 791 }
792 return 0;
dea3101e 793}
794
e59058c4 795/**
3772a991 796 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
e59058c4
JS		 797 * @phba: pointer to lpfc HBA data structure.
798 *
799 * This routine will do uninitialization after the HBA is reset when bring
800 * down the SLI Layer.
801 *
802 * Return codes
af901ca1 803 * 0 - success.
e59058c4
JS		 804 * Any other value - error.
805 **/
3772a991
JS		 806static int
807lpfc_hba_down_post_s3(struct lpfc_hba *phba)
41415862
JW		 808{
809 struct lpfc_sli *psli = &phba->sli;
810 struct lpfc_sli_ring *pring;
811 struct lpfc_dmabuf *mp, *next_mp;
09372820 812 LIST_HEAD(completions);
41415862
JW		 813 int i;
814
92d7f7b0
JS		 815 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
816 lpfc_sli_hbqbuf_free_all(phba);
817 else {
818 /* Cleanup preposted buffers on the ELS ring */
819 pring = &psli->ring[LPFC_ELS_RING];
820 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
821 list_del(&mp->list);
822 pring->postbufq_cnt--;
823 lpfc_mbuf_free(phba, mp->virt, mp->phys);
824 kfree(mp);
825 }
41415862
JW		 826 }
827
09372820 828 spin_lock_irq(&phba->hbalock);
41415862
JW		 829 for (i = 0; i < psli->num_rings; i++) {
830 pring = &psli->ring[i];
09372820
JS		 831
832 /* At this point in time the HBA is either reset or DOA. Either
833 * way, nothing should be on txcmplq as it will NEVER complete.
834 */
835 list_splice_init(&pring->txcmplq, &completions);
836 pring->txcmplq_cnt = 0;
837 spin_unlock_irq(&phba->hbalock);
838
a257bf90
JS		 839 /* Cancel all the IOCBs from the completions list */
840 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
841 IOERR_SLI_ABORTED);
09372820 842
41415862 843 lpfc_sli_abort_iocb_ring(phba, pring);
09372820 844 spin_lock_irq(&phba->hbalock);
41415862 845 }
09372820 846 spin_unlock_irq(&phba->hbalock);
41415862
JW		 847
848 return 0;
849}
5af5eee7 850
da0436e9
JS		 851/**
852 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
853 * @phba: pointer to lpfc HBA data structure.
854 *
855 * This routine will do uninitialization after the HBA is reset when bring
856 * down the SLI Layer.
857 *
858 * Return codes
af901ca1 859 * 0 - success.
da0436e9
JS		 860 * Any other value - error.
861 **/
862static int
863lpfc_hba_down_post_s4(struct lpfc_hba *phba)
864{
865 struct lpfc_scsi_buf *psb, *psb_next;
866 LIST_HEAD(aborts);
867 int ret;
868 unsigned long iflag = 0;
0f65ff68
JS		 869 struct lpfc_sglq *sglq_entry = NULL;
870
da0436e9
JS		 871 ret = lpfc_hba_down_post_s3(phba);
872 if (ret)
873 return ret;
874 /* At this point in time the HBA is either reset or DOA. Either
875 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
876 * on the lpfc_sgl_list so that it can either be freed if the
877 * driver is unloading or reposted if the driver is restarting
878 * the port.
879 */
880 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
881 /* scsl_buf_list */
882 /* abts_sgl_list_lock required because worker thread uses this
883 * list.
884 */
885 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
0f65ff68
JS		 886 list_for_each_entry(sglq_entry,
887 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
888 sglq_entry->state = SGL_FREED;
889
da0436e9
JS		 890 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
891 &phba->sli4_hba.lpfc_sgl_list);
892 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
893 /* abts_scsi_buf_list_lock required because worker thread uses this
894 * list.
895 */
896 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
897 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
898 &aborts);
899 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
900 spin_unlock_irq(&phba->hbalock);
901
902 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
903 psb->pCmd = NULL;
904 psb->status = IOSTAT_SUCCESS;
905 }
906 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
907 list_splice(&aborts, &phba->lpfc_scsi_buf_list);
908 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
909 return 0;
910}
911
912/**
913 * lpfc_hba_down_post - Wrapper func for hba down post routine
914 * @phba: pointer to lpfc HBA data structure.
915 *
916 * This routine wraps the actual SLI3 or SLI4 routine for performing
917 * uninitialization after the HBA is reset when bring down the SLI Layer.
918 *
919 * Return codes
af901ca1 920 * 0 - success.
da0436e9
JS		 921 * Any other value - error.
922 **/
923int
924lpfc_hba_down_post(struct lpfc_hba *phba)
925{
926 return (*phba->lpfc_hba_down_post)(phba);
927}
41415862 928
e59058c4 929/**
3621a710 930 * lpfc_hb_timeout - The HBA-timer timeout handler
e59058c4
JS		 931 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
932 *
933 * This is the HBA-timer timeout handler registered to the lpfc driver. When
934 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
935 * work-port-events bitmap and the worker thread is notified. This timeout
936 * event will be used by the worker thread to invoke the actual timeout
937 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
938 * be performed in the timeout handler and the HBA timeout event bit shall
939 * be cleared by the worker thread after it has taken the event bitmap out.
940 **/
a6ababd2 941static void
858c9f6c
JS		 942lpfc_hb_timeout(unsigned long ptr)
943{
944 struct lpfc_hba *phba;
5e9d9b82 945 uint32_t tmo_posted;
858c9f6c
JS		 946 unsigned long iflag;
947
948 phba = (struct lpfc_hba *)ptr;
9399627f
JS		 949
950 /* Check for heart beat timeout conditions */
858c9f6c 951 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
5e9d9b82
JS		 952 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
953 if (!tmo_posted)
858c9f6c
JS		 954 phba->pport->work_port_events |= WORKER_HB_TMO;
955 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
956
9399627f 957 /* Tell the worker thread there is work to do */
5e9d9b82
JS		 958 if (!tmo_posted)
959 lpfc_worker_wake_up(phba);
858c9f6c
JS		 960 return;
961}
962
19ca7609
JS		 963/**
964 * lpfc_rrq_timeout - The RRQ-timer timeout handler
965 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
966 *
967 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
968 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
969 * work-port-events bitmap and the worker thread is notified. This timeout
970 * event will be used by the worker thread to invoke the actual timeout
971 * handler routine, lpfc_rrq_handler. Any periodical operations will
972 * be performed in the timeout handler and the RRQ timeout event bit shall
973 * be cleared by the worker thread after it has taken the event bitmap out.
974 **/
975static void
976lpfc_rrq_timeout(unsigned long ptr)
977{
978 struct lpfc_hba *phba;
19ca7609
JS		 979 unsigned long iflag;
980
981 phba = (struct lpfc_hba *)ptr;
982 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1151e3ec 983 phba->hba_flag |= HBA_RRQ_ACTIVE;
19ca7609 984 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1151e3ec 985 lpfc_worker_wake_up(phba);
19ca7609
JS		 986}
987
e59058c4 988/**
3621a710 989 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
e59058c4
JS		 990 * @phba: pointer to lpfc hba data structure.
991 * @pmboxq: pointer to the driver internal queue element for mailbox command.
992 *
993 * This is the callback function to the lpfc heart-beat mailbox command.
994 * If configured, the lpfc driver issues the heart-beat mailbox command to
995 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
996 * heart-beat mailbox command is issued, the driver shall set up heart-beat
997 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
998 * heart-beat outstanding state. Once the mailbox command comes back and
999 * no error conditions detected, the heart-beat mailbox command timer is
1000 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1001 * state is cleared for the next heart-beat. If the timer expired with the
1002 * heart-beat outstanding state set, the driver will put the HBA offline.
1003 **/
858c9f6c
JS		 1004static void
1005lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1006{
1007 unsigned long drvr_flag;
1008
1009 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1010 phba->hb_outstanding = 0;
1011 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1012
9399627f 1013 /* Check and reset heart-beat timer is necessary */
858c9f6c
JS		 1014 mempool_free(pmboxq, phba->mbox_mem_pool);
1015 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1016 !(phba->link_state == LPFC_HBA_ERROR) &&
51ef4c26 1017 !(phba->pport->load_flag & FC_UNLOADING))
858c9f6c
JS		 1018 mod_timer(&phba->hb_tmofunc,
1019 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1020 return;
1021}
1022
e59058c4 1023/**
3621a710 1024 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
e59058c4
JS		 1025 * @phba: pointer to lpfc hba data structure.
1026 *
1027 * This is the actual HBA-timer timeout handler to be invoked by the worker
1028 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1029 * handler performs any periodic operations needed for the device. If such
1030 * periodic event has already been attended to either in the interrupt handler
1031 * or by processing slow-ring or fast-ring events within the HBA-timer
1032 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1033 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1034 * is configured and there is no heart-beat mailbox command outstanding, a
1035 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1036 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1037 * to offline.
1038 **/
858c9f6c
JS		 1039void
1040lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1041{
45ed1190 1042 struct lpfc_vport **vports;
858c9f6c 1043 LPFC_MBOXQ_t *pmboxq;
0ff10d46 1044 struct lpfc_dmabuf *buf_ptr;
45ed1190 1045 int retval, i;
858c9f6c 1046 struct lpfc_sli *psli = &phba->sli;
0ff10d46 1047 LIST_HEAD(completions);
858c9f6c 1048
45ed1190
JS		 1049 vports = lpfc_create_vport_work_array(phba);
1050 if (vports != NULL)
1051 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1052 lpfc_rcv_seq_check_edtov(vports[i]);
1053 lpfc_destroy_vport_work_array(phba, vports);
1054
858c9f6c 1055 if ((phba->link_state == LPFC_HBA_ERROR) ||
51ef4c26 1056 (phba->pport->load_flag & FC_UNLOADING) ||
858c9f6c
JS		 1057 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1058 return;
1059
1060 spin_lock_irq(&phba->pport->work_port_lock);
858c9f6c
JS		 1061
1062 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1063 jiffies)) {
1064 spin_unlock_irq(&phba->pport->work_port_lock);
1065 if (!phba->hb_outstanding)
1066 mod_timer(&phba->hb_tmofunc,
1067 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1068 else
1069 mod_timer(&phba->hb_tmofunc,
1070 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1071 return;
1072 }
1073 spin_unlock_irq(&phba->pport->work_port_lock);
1074
0ff10d46
JS		 1075 if (phba->elsbuf_cnt &&
1076 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1077 spin_lock_irq(&phba->hbalock);
1078 list_splice_init(&phba->elsbuf, &completions);
1079 phba->elsbuf_cnt = 0;
1080 phba->elsbuf_prev_cnt = 0;
1081 spin_unlock_irq(&phba->hbalock);
1082
1083 while (!list_empty(&completions)) {
1084 list_remove_head(&completions, buf_ptr,
1085 struct lpfc_dmabuf, list);
1086 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1087 kfree(buf_ptr);
1088 }
1089 }
1090 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1091
858c9f6c 1092 /* If there is no heart beat outstanding, issue a heartbeat command */
13815c83
JS		 1093 if (phba->cfg_enable_hba_heartbeat) {
1094 if (!phba->hb_outstanding) {
bc73905a
JS		 1095 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1096 (list_empty(&psli->mboxq))) {
1097 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1098 GFP_KERNEL);
1099 if (!pmboxq) {
1100 mod_timer(&phba->hb_tmofunc,
1101 jiffies +
1102 HZ * LPFC_HB_MBOX_INTERVAL);
1103 return;
1104 }
1105
1106 lpfc_heart_beat(phba, pmboxq);
1107 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1108 pmboxq->vport = phba->pport;
1109 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1110 MBX_NOWAIT);
1111
1112 if (retval != MBX_BUSY &&
1113 retval != MBX_SUCCESS) {
1114 mempool_free(pmboxq,
1115 phba->mbox_mem_pool);
1116 mod_timer(&phba->hb_tmofunc,
1117 jiffies +
1118 HZ * LPFC_HB_MBOX_INTERVAL);
1119 return;
1120 }
1121 phba->skipped_hb = 0;
1122 phba->hb_outstanding = 1;
1123 } else if (time_before_eq(phba->last_completion_time,
1124 phba->skipped_hb)) {
1125 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1126 "2857 Last completion time not "
1127 " updated in %d ms\n",
1128 jiffies_to_msecs(jiffies
1129 - phba->last_completion_time));
1130 } else
1131 phba->skipped_hb = jiffies;
1132
858c9f6c 1133 mod_timer(&phba->hb_tmofunc,
13815c83 1134 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
858c9f6c 1135 return;
13815c83
JS		 1136 } else {
1137 /*
1138 * If heart beat timeout called with hb_outstanding set
dcf2a4e0
JS		 1139 * we need to give the hb mailbox cmd a chance to
1140 * complete or TMO.
13815c83 1141 */
dcf2a4e0
JS		 1142 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1143 "0459 Adapter heartbeat still out"
1144 "standing:last compl time was %d ms.\n",
1145 jiffies_to_msecs(jiffies
1146 - phba->last_completion_time));
1147 mod_timer(&phba->hb_tmofunc,
1148 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
858c9f6c 1149 }
858c9f6c
JS		 1150 }
1151}
1152
e59058c4 1153/**
3621a710 1154 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
e59058c4
JS		 1155 * @phba: pointer to lpfc hba data structure.
1156 *
1157 * This routine is called to bring the HBA offline when HBA hardware error
1158 * other than Port Error 6 has been detected.
1159 **/
09372820
JS		 1160static void
1161lpfc_offline_eratt(struct lpfc_hba *phba)
1162{
1163 struct lpfc_sli *psli = &phba->sli;
1164
1165 spin_lock_irq(&phba->hbalock);
f4b4c68f 1166 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
09372820
JS		 1167 spin_unlock_irq(&phba->hbalock);
1168 lpfc_offline_prep(phba);
1169
1170 lpfc_offline(phba);
1171 lpfc_reset_barrier(phba);
f4b4c68f 1172 spin_lock_irq(&phba->hbalock);
09372820 1173 lpfc_sli_brdreset(phba);
f4b4c68f 1174 spin_unlock_irq(&phba->hbalock);
09372820
JS		 1175 lpfc_hba_down_post(phba);
1176 lpfc_sli_brdready(phba, HS_MBRDY);
1177 lpfc_unblock_mgmt_io(phba);
1178 phba->link_state = LPFC_HBA_ERROR;
1179 return;
1180}
1181
da0436e9
JS		 1182/**
1183 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1184 * @phba: pointer to lpfc hba data structure.
1185 *
1186 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1187 * other than Port Error 6 has been detected.
1188 **/
1189static void
1190lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1191{
1192 lpfc_offline_prep(phba);
1193 lpfc_offline(phba);
1194 lpfc_sli4_brdreset(phba);
1195 lpfc_hba_down_post(phba);
1196 lpfc_sli4_post_status_check(phba);
1197 lpfc_unblock_mgmt_io(phba);
1198 phba->link_state = LPFC_HBA_ERROR;
1199}
1200
a257bf90
JS		 1201/**
1202 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1203 * @phba: pointer to lpfc hba data structure.
1204 *
1205 * This routine is invoked to handle the deferred HBA hardware error
1206 * conditions. This type of error is indicated by HBA by setting ER1
1207 * and another ER bit in the host status register. The driver will
1208 * wait until the ER1 bit clears before handling the error condition.
1209 **/
1210static void
1211lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1212{
1213 uint32_t old_host_status = phba->work_hs;
1214 struct lpfc_sli_ring *pring;
1215 struct lpfc_sli *psli = &phba->sli;
1216
f4b4c68f
JS		 1217 /* If the pci channel is offline, ignore possible errors,
1218 * since we cannot communicate with the pci card anyway.
1219 */
1220 if (pci_channel_offline(phba->pcidev)) {
1221 spin_lock_irq(&phba->hbalock);
1222 phba->hba_flag &= ~DEFER_ERATT;
1223 spin_unlock_irq(&phba->hbalock);
1224 return;
1225 }
1226
a257bf90
JS		 1227 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1228 "0479 Deferred Adapter Hardware Error "
1229 "Data: x%x x%x x%x\n",
1230 phba->work_hs,
1231 phba->work_status[0], phba->work_status[1]);
1232
1233 spin_lock_irq(&phba->hbalock);
f4b4c68f 1234 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
a257bf90
JS		 1235 spin_unlock_irq(&phba->hbalock);
1236
1237
1238 /*
1239 * Firmware stops when it triggred erratt. That could cause the I/Os
1240 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1241 * SCSI layer retry it after re-establishing link.
1242 */
1243 pring = &psli->ring[psli->fcp_ring];
1244 lpfc_sli_abort_iocb_ring(phba, pring);
1245
1246 /*
1247 * There was a firmware error. Take the hba offline and then
1248 * attempt to restart it.
1249 */
1250 lpfc_offline_prep(phba);
1251 lpfc_offline(phba);
1252
1253 /* Wait for the ER1 bit to clear.*/
1254 while (phba->work_hs & HS_FFER1) {
1255 msleep(100);
9940b97b
JS		 1256 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1257 phba->work_hs = UNPLUG_ERR ;
1258 break;
1259 }
a257bf90
JS		 1260 /* If driver is unloading let the worker thread continue */
1261 if (phba->pport->load_flag & FC_UNLOADING) {
1262 phba->work_hs = 0;
1263 break;
1264 }
1265 }
1266
1267 /*
1268 * This is to ptrotect against a race condition in which
1269 * first write to the host attention register clear the
1270 * host status register.
1271 */
1272 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1273 phba->work_hs = old_host_status & ~HS_FFER1;
1274
3772a991 1275 spin_lock_irq(&phba->hbalock);
a257bf90 1276 phba->hba_flag &= ~DEFER_ERATT;
3772a991 1277 spin_unlock_irq(&phba->hbalock);
a257bf90
JS		 1278 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1279 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1280}
1281
3772a991
JS		 1282static void
1283lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1284{
1285 struct lpfc_board_event_header board_event;
1286 struct Scsi_Host *shost;
1287
1288 board_event.event_type = FC_REG_BOARD_EVENT;
1289 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1290 shost = lpfc_shost_from_vport(phba->pport);
1291 fc_host_post_vendor_event(shost, fc_get_event_number(),
1292 sizeof(board_event),
1293 (char *) &board_event,
1294 LPFC_NL_VENDOR_ID);
1295}
1296
e59058c4 1297/**
3772a991 1298 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
e59058c4
JS		 1299 * @phba: pointer to lpfc hba data structure.
1300 *
1301 * This routine is invoked to handle the following HBA hardware error
1302 * conditions:
1303 * 1 - HBA error attention interrupt
1304 * 2 - DMA ring index out of range
1305 * 3 - Mailbox command came back as unknown
1306 **/
3772a991
JS		 1307static void
1308lpfc_handle_eratt_s3(struct lpfc_hba *phba)
dea3101e 1309{
2e0fef85 1310 struct lpfc_vport *vport = phba->pport;
2e0fef85 1311 struct lpfc_sli *psli = &phba->sli;
dea3101e 1312 struct lpfc_sli_ring *pring;
d2873e4c 1313 uint32_t event_data;
57127f15
JS		 1314 unsigned long temperature;
1315 struct temp_event temp_event_data;
92d7f7b0 1316 struct Scsi_Host *shost;
2e0fef85 1317
8d63f375 1318 /* If the pci channel is offline, ignore possible errors,
3772a991
JS		 1319 * since we cannot communicate with the pci card anyway.
1320 */
1321 if (pci_channel_offline(phba->pcidev)) {
1322 spin_lock_irq(&phba->hbalock);
1323 phba->hba_flag &= ~DEFER_ERATT;
1324 spin_unlock_irq(&phba->hbalock);
8d63f375 1325 return;
3772a991
JS		 1326 }
1327
13815c83
JS		 1328 /* If resets are disabled then leave the HBA alone and return */
1329 if (!phba->cfg_enable_hba_reset)
1330 return;
dea3101e 1331
ea2151b4 1332 /* Send an internal error event to mgmt application */
3772a991 1333 lpfc_board_errevt_to_mgmt(phba);
ea2151b4 1334
a257bf90
JS		 1335 if (phba->hba_flag & DEFER_ERATT)
1336 lpfc_handle_deferred_eratt(phba);
1337
dcf2a4e0
JS		 1338 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1339 if (phba->work_hs & HS_FFER6)
1340 /* Re-establishing Link */
1341 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1342 "1301 Re-establishing Link "
1343 "Data: x%x x%x x%x\n",
1344 phba->work_hs, phba->work_status[0],
1345 phba->work_status[1]);
1346 if (phba->work_hs & HS_FFER8)
1347 /* Device Zeroization */
1348 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1349 "2861 Host Authentication device "
1350 "zeroization Data:x%x x%x x%x\n",
1351 phba->work_hs, phba->work_status[0],
1352 phba->work_status[1]);
58da1ffb 1353
92d7f7b0 1354 spin_lock_irq(&phba->hbalock);
f4b4c68f 1355 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
92d7f7b0 1356 spin_unlock_irq(&phba->hbalock);
dea3101e 1357
1358 /*
1359 * Firmware stops when it triggled erratt with HS_FFER6.
1360 * That could cause the I/Os dropped by the firmware.
1361 * Error iocb (I/O) on txcmplq and let the SCSI layer
1362 * retry it after re-establishing link.
1363 */
1364 pring = &psli->ring[psli->fcp_ring];
1365 lpfc_sli_abort_iocb_ring(phba, pring);
1366
dea3101e 1367 /*
1368 * There was a firmware error. Take the hba offline and then
1369 * attempt to restart it.
1370 */
46fa311e 1371 lpfc_offline_prep(phba);
dea3101e 1372 lpfc_offline(phba);
41415862 1373 lpfc_sli_brdrestart(phba);
dea3101e 1374 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
46fa311e 1375 lpfc_unblock_mgmt_io(phba);
dea3101e 1376 return;
1377 }
46fa311e 1378 lpfc_unblock_mgmt_io(phba);
57127f15
JS		 1379 } else if (phba->work_hs & HS_CRIT_TEMP) {
1380 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1381 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1382 temp_event_data.event_code = LPFC_CRIT_TEMP;
1383 temp_event_data.data = (uint32_t)temperature;
1384
1385 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
d7c255b2 1386 "0406 Adapter maximum temperature exceeded "
57127f15
JS		 1387 "(%ld), taking this port offline "
1388 "Data: x%x x%x x%x\n",
1389 temperature, phba->work_hs,
1390 phba->work_status[0], phba->work_status[1]);
1391
1392 shost = lpfc_shost_from_vport(phba->pport);
1393 fc_host_post_vendor_event(shost, fc_get_event_number(),
1394 sizeof(temp_event_data),
1395 (char *) &temp_event_data,
1396 SCSI_NL_VID_TYPE_PCI
1397 | PCI_VENDOR_ID_EMULEX);
1398
7af67051 1399 spin_lock_irq(&phba->hbalock);
7af67051
JS		 1400 phba->over_temp_state = HBA_OVER_TEMP;
1401 spin_unlock_irq(&phba->hbalock);
09372820 1402 lpfc_offline_eratt(phba);
57127f15 1403
dea3101e 1404 } else {
1405 /* The if clause above forces this code path when the status
9399627f
JS		 1406 * failure is a value other than FFER6. Do not call the offline
1407 * twice. This is the adapter hardware error path.
dea3101e 1408 */
1409 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 1410 "0457 Adapter Hardware Error "
dea3101e 1411 "Data: x%x x%x x%x\n",
e8b62011 1412 phba->work_hs,
dea3101e 1413 phba->work_status[0], phba->work_status[1]);
1414
d2873e4c 1415 event_data = FC_REG_DUMP_EVENT;
92d7f7b0 1416 shost = lpfc_shost_from_vport(vport);
2e0fef85 1417 fc_host_post_vendor_event(shost, fc_get_event_number(),
d2873e4c
JS		 1418 sizeof(event_data), (char *) &event_data,
1419 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1420
09372820 1421 lpfc_offline_eratt(phba);
dea3101e 1422 }
9399627f 1423 return;
dea3101e 1424}
1425
da0436e9
JS		 1426/**
1427 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1428 * @phba: pointer to lpfc hba data structure.
1429 *
1430 * This routine is invoked to handle the SLI4 HBA hardware error attention
1431 * conditions.
1432 **/
1433static void
1434lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1435{
1436 struct lpfc_vport *vport = phba->pport;
1437 uint32_t event_data;
1438 struct Scsi_Host *shost;
2fcee4bf
JS		 1439 uint32_t if_type;
1440 struct lpfc_register portstat_reg;
da0436e9
JS		 1441
1442 /* If the pci channel is offline, ignore possible errors, since
1443 * we cannot communicate with the pci card anyway.
1444 */
1445 if (pci_channel_offline(phba->pcidev))
1446 return;
1447 /* If resets are disabled then leave the HBA alone and return */
1448 if (!phba->cfg_enable_hba_reset)
1449 return;
1450
1451 /* Send an internal error event to mgmt application */
1452 lpfc_board_errevt_to_mgmt(phba);
1453
1454 /* For now, the actual action for SLI4 device handling is not
1455 * specified yet, just treated it as adaptor hardware failure
1456 */
da0436e9
JS		 1457 event_data = FC_REG_DUMP_EVENT;
1458 shost = lpfc_shost_from_vport(vport);
1459 fc_host_post_vendor_event(shost, fc_get_event_number(),
1460 sizeof(event_data), (char *) &event_data,
1461 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1462
2fcee4bf
JS		 1463 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1464 switch (if_type) {
1465 case LPFC_SLI_INTF_IF_TYPE_0:
1466 lpfc_sli4_offline_eratt(phba);
1467 break;
1468 case LPFC_SLI_INTF_IF_TYPE_2:
1469 portstat_reg.word0 =
1470 readl(phba->sli4_hba.u.if_type2.STATUSregaddr);
1471
1472 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1473 /* TODO: Register for Overtemp async events. */
1474 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1475 "2889 Port Overtemperature event, "
1476 "taking port\n");
1477 spin_lock_irq(&phba->hbalock);
1478 phba->over_temp_state = HBA_OVER_TEMP;
1479 spin_unlock_irq(&phba->hbalock);
1480 lpfc_sli4_offline_eratt(phba);
1481 return;
1482 }
1483 if (bf_get(lpfc_sliport_status_rn, &portstat_reg)) {
1484 /*
1485 * TODO: Attempt port recovery via a port reset.
1486 * When fully implemented, the driver should
1487 * attempt to recover the port here and return.
1488 * For now, log an error and take the port offline.
1489 */
1490 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1491 "2887 Port Error: Attempting "
1492 "Port Recovery\n");
1493 }
1494 lpfc_sli4_offline_eratt(phba);
1495 break;
1496 case LPFC_SLI_INTF_IF_TYPE_1:
1497 default:
1498 break;
1499 }
da0436e9
JS		 1500}
1501
1502/**
1503 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1504 * @phba: pointer to lpfc HBA data structure.
1505 *
1506 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1507 * routine from the API jump table function pointer from the lpfc_hba struct.
1508 *
1509 * Return codes
af901ca1 1510 * 0 - success.
da0436e9
JS		 1511 * Any other value - error.
1512 **/
1513void
1514lpfc_handle_eratt(struct lpfc_hba *phba)
1515{
1516 (*phba->lpfc_handle_eratt)(phba);
1517}
1518
e59058c4 1519/**
3621a710 1520 * lpfc_handle_latt - The HBA link event handler
e59058c4
JS		 1521 * @phba: pointer to lpfc hba data structure.
1522 *
1523 * This routine is invoked from the worker thread to handle a HBA host
1524 * attention link event.
1525 **/
dea3101e 1526void
2e0fef85 1527lpfc_handle_latt(struct lpfc_hba *phba)
dea3101e 1528{
2e0fef85
JS		 1529 struct lpfc_vport *vport = phba->pport;
1530 struct lpfc_sli *psli = &phba->sli;
dea3101e 1531 LPFC_MBOXQ_t *pmb;
1532 volatile uint32_t control;
1533 struct lpfc_dmabuf *mp;
09372820 1534 int rc = 0;
dea3101e 1535
1536 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
09372820
JS		 1537 if (!pmb) {
1538 rc = 1;
dea3101e 1539 goto lpfc_handle_latt_err_exit;
09372820 1540 }
dea3101e 1541
1542 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
09372820
JS		 1543 if (!mp) {
1544 rc = 2;
dea3101e 1545 goto lpfc_handle_latt_free_pmb;
09372820 1546 }
dea3101e 1547
1548 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
09372820
JS		 1549 if (!mp->virt) {
1550 rc = 3;
dea3101e 1551 goto lpfc_handle_latt_free_mp;
09372820 1552 }
dea3101e 1553
6281bfe0 1554 /* Cleanup any outstanding ELS commands */
549e55cd 1555 lpfc_els_flush_all_cmd(phba);
dea3101e 1556
1557 psli->slistat.link_event++;
76a95d75
JS		 1558 lpfc_read_topology(phba, pmb, mp);
1559 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2e0fef85 1560 pmb->vport = vport;
0d2b6b83
JS		 1561 /* Block ELS IOCBs until we have processed this mbox command */
1562 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
0b727fea 1563 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
09372820
JS		 1564 if (rc == MBX_NOT_FINISHED) {
1565 rc = 4;
14691150 1566 goto lpfc_handle_latt_free_mbuf;
09372820 1567 }
dea3101e 1568
1569 /* Clear Link Attention in HA REG */
2e0fef85 1570 spin_lock_irq(&phba->hbalock);
dea3101e 1571 writel(HA_LATT, phba->HAregaddr);
1572 readl(phba->HAregaddr); /* flush */
2e0fef85 1573 spin_unlock_irq(&phba->hbalock);
dea3101e 1574
1575 return;
1576
14691150 1577lpfc_handle_latt_free_mbuf:
0d2b6b83 1578 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
14691150 1579 lpfc_mbuf_free(phba, mp->virt, mp->phys);
dea3101e 1580lpfc_handle_latt_free_mp:
1581 kfree(mp);
1582lpfc_handle_latt_free_pmb:
1dcb58e5 1583 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 1584lpfc_handle_latt_err_exit:
1585 /* Enable Link attention interrupts */
2e0fef85 1586 spin_lock_irq(&phba->hbalock);
dea3101e 1587 psli->sli_flag |= LPFC_PROCESS_LA;
1588 control = readl(phba->HCregaddr);
1589 control |= HC_LAINT_ENA;
1590 writel(control, phba->HCregaddr);
1591 readl(phba->HCregaddr); /* flush */
1592
1593 /* Clear Link Attention in HA REG */
1594 writel(HA_LATT, phba->HAregaddr);
1595 readl(phba->HAregaddr); /* flush */
2e0fef85 1596 spin_unlock_irq(&phba->hbalock);
dea3101e 1597 lpfc_linkdown(phba);
2e0fef85 1598 phba->link_state = LPFC_HBA_ERROR;
dea3101e 1599
09372820
JS		 1600 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1601 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
dea3101e 1602
1603 return;
1604}
1605
e59058c4 1606/**
3621a710 1607 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
e59058c4
JS		 1608 * @phba: pointer to lpfc hba data structure.
1609 * @vpd: pointer to the vital product data.
1610 * @len: length of the vital product data in bytes.
1611 *
1612 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1613 * an array of characters. In this routine, the ModelName, ProgramType, and
1614 * ModelDesc, etc. fields of the phba data structure will be populated.
1615 *
1616 * Return codes
1617 * 0 - pointer to the VPD passed in is NULL
1618 * 1 - success
1619 **/
3772a991 1620int
2e0fef85 1621lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
dea3101e 1622{
1623 uint8_t lenlo, lenhi;
07da60c1 1624 int Length;
dea3101e 1625 int i, j;
1626 int finished = 0;
1627 int index = 0;
1628
1629 if (!vpd)
1630 return 0;
1631
1632 /* Vital Product */
ed957684 1633 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011 1634 "0455 Vital Product Data: x%x x%x x%x x%x\n",
dea3101e 1635 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1636 (uint32_t) vpd[3]);
74b72a59 1637 while (!finished && (index < (len - 4))) {
dea3101e 1638 switch (vpd[index]) {
1639 case 0x82:
74b72a59 1640 case 0x91:
dea3101e 1641 index += 1;
1642 lenlo = vpd[index];
1643 index += 1;
1644 lenhi = vpd[index];
1645 index += 1;
1646 i = ((((unsigned short)lenhi) << 8) + lenlo);
1647 index += i;
1648 break;
1649 case 0x90:
1650 index += 1;
1651 lenlo = vpd[index];
1652 index += 1;
1653 lenhi = vpd[index];
1654 index += 1;
1655 Length = ((((unsigned short)lenhi) << 8) + lenlo);
74b72a59
JW		 1656 if (Length > len - index)
1657 Length = len - index;
dea3101e 1658 while (Length > 0) {
1659 /* Look for Serial Number */
1660 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1661 index += 2;
1662 i = vpd[index];
1663 index += 1;
1664 j = 0;
1665 Length -= (3+i);
1666 while(i--) {
1667 phba->SerialNumber[j++] = vpd[index++];
1668 if (j == 31)
1669 break;
1670 }
1671 phba->SerialNumber[j] = 0;
1672 continue;
1673 }
1674 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1675 phba->vpd_flag |= VPD_MODEL_DESC;
1676 index += 2;
1677 i = vpd[index];
1678 index += 1;
1679 j = 0;
1680 Length -= (3+i);
1681 while(i--) {
1682 phba->ModelDesc[j++] = vpd[index++];
1683 if (j == 255)
1684 break;
1685 }
1686 phba->ModelDesc[j] = 0;
1687 continue;
1688 }
1689 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1690 phba->vpd_flag |= VPD_MODEL_NAME;
1691 index += 2;
1692 i = vpd[index];
1693 index += 1;
1694 j = 0;
1695 Length -= (3+i);
1696 while(i--) {
1697 phba->ModelName[j++] = vpd[index++];
1698 if (j == 79)
1699 break;
1700 }
1701 phba->ModelName[j] = 0;
1702 continue;
1703 }
1704 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1705 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1706 index += 2;
1707 i = vpd[index];
1708 index += 1;
1709 j = 0;
1710 Length -= (3+i);
1711 while(i--) {
1712 phba->ProgramType[j++] = vpd[index++];
1713 if (j == 255)
1714 break;
1715 }
1716 phba->ProgramType[j] = 0;
1717 continue;
1718 }
1719 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1720 phba->vpd_flag |= VPD_PORT;
1721 index += 2;
1722 i = vpd[index];
1723 index += 1;
1724 j = 0;
1725 Length -= (3+i);
1726 while(i--) {
1727 phba->Port[j++] = vpd[index++];
1728 if (j == 19)
1729 break;
1730 }
1731 phba->Port[j] = 0;
1732 continue;
1733 }
1734 else {
1735 index += 2;
1736 i = vpd[index];
1737 index += 1;
1738 index += i;
1739 Length -= (3 + i);
1740 }
1741 }
1742 finished = 0;
1743 break;
1744 case 0x78:
1745 finished = 1;
1746 break;
1747 default:
1748 index ++;
1749 break;
1750 }
74b72a59 1751 }
dea3101e 1752
1753 return(1);
1754}
1755
e59058c4 1756/**
3621a710 1757 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
e59058c4
JS		 1758 * @phba: pointer to lpfc hba data structure.
1759 * @mdp: pointer to the data structure to hold the derived model name.
1760 * @descp: pointer to the data structure to hold the derived description.
1761 *
1762 * This routine retrieves HBA's description based on its registered PCI device
1763 * ID. The @descp passed into this function points to an array of 256 chars. It
1764 * shall be returned with the model name, maximum speed, and the host bus type.
1765 * The @mdp passed into this function points to an array of 80 chars. When the
1766 * function returns, the @mdp will be filled with the model name.
1767 **/
dea3101e 1768static void
2e0fef85 1769lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
dea3101e 1770{
1771 lpfc_vpd_t *vp;
fefcb2b6 1772 uint16_t dev_id = phba->pcidev->device;
74b72a59 1773 int max_speed;
84774a4d 1774 int GE = 0;
da0436e9 1775 int oneConnect = 0; /* default is not a oneConnect */
74b72a59 1776 struct {
a747c9ce
JS		 1777 char *name;
1778 char *bus;
1779 char *function;
1780 } m = {"<Unknown>", "", ""};
74b72a59
JW		 1781
1782 if (mdp && mdp[0] != '\0'
1783 && descp && descp[0] != '\0')
1784 return;
1785
c0c11512
JS		 1786 if (phba->lmt & LMT_16Gb)
1787 max_speed = 16;
1788 else if (phba->lmt & LMT_10Gb)
74b72a59
JW		 1789 max_speed = 10;
1790 else if (phba->lmt & LMT_8Gb)
1791 max_speed = 8;
1792 else if (phba->lmt & LMT_4Gb)
1793 max_speed = 4;
1794 else if (phba->lmt & LMT_2Gb)
1795 max_speed = 2;
1796 else
1797 max_speed = 1;
dea3101e 1798
1799 vp = &phba->vpd;
dea3101e 1800
e4adb204 1801 switch (dev_id) {
06325e74 1802 case PCI_DEVICE_ID_FIREFLY:
a747c9ce 1803 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
06325e74 1804 break;
dea3101e 1805 case PCI_DEVICE_ID_SUPERFLY:
1806 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
a747c9ce
JS		 1807 m = (typeof(m)){"LP7000", "PCI",
1808 "Fibre Channel Adapter"};
dea3101e 1809 else
a747c9ce
JS		 1810 m = (typeof(m)){"LP7000E", "PCI",
1811 "Fibre Channel Adapter"};
dea3101e 1812 break;
1813 case PCI_DEVICE_ID_DRAGONFLY:
a747c9ce
JS		 1814 m = (typeof(m)){"LP8000", "PCI",
1815 "Fibre Channel Adapter"};
dea3101e 1816 break;
1817 case PCI_DEVICE_ID_CENTAUR:
1818 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
a747c9ce
JS		 1819 m = (typeof(m)){"LP9002", "PCI",
1820 "Fibre Channel Adapter"};
dea3101e 1821 else
a747c9ce
JS		 1822 m = (typeof(m)){"LP9000", "PCI",
1823 "Fibre Channel Adapter"};
dea3101e 1824 break;
1825 case PCI_DEVICE_ID_RFLY:
a747c9ce
JS		 1826 m = (typeof(m)){"LP952", "PCI",
1827 "Fibre Channel Adapter"};
dea3101e 1828 break;
1829 case PCI_DEVICE_ID_PEGASUS:
a747c9ce
JS		 1830 m = (typeof(m)){"LP9802", "PCI-X",
1831 "Fibre Channel Adapter"};
dea3101e 1832 break;
1833 case PCI_DEVICE_ID_THOR:
a747c9ce
JS		 1834 m = (typeof(m)){"LP10000", "PCI-X",
1835 "Fibre Channel Adapter"};
dea3101e 1836 break;
1837 case PCI_DEVICE_ID_VIPER:
a747c9ce
JS		 1838 m = (typeof(m)){"LPX1000", "PCI-X",
1839 "Fibre Channel Adapter"};
dea3101e 1840 break;
1841 case PCI_DEVICE_ID_PFLY:
a747c9ce
JS		 1842 m = (typeof(m)){"LP982", "PCI-X",
1843 "Fibre Channel Adapter"};
dea3101e 1844 break;
1845 case PCI_DEVICE_ID_TFLY:
a747c9ce
JS		 1846 m = (typeof(m)){"LP1050", "PCI-X",
1847 "Fibre Channel Adapter"};
dea3101e 1848 break;
1849 case PCI_DEVICE_ID_HELIOS:
a747c9ce
JS		 1850 m = (typeof(m)){"LP11000", "PCI-X2",
1851 "Fibre Channel Adapter"};
dea3101e 1852 break;
e4adb204 1853 case PCI_DEVICE_ID_HELIOS_SCSP:
a747c9ce
JS		 1854 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1855 "Fibre Channel Adapter"};
e4adb204
JSEC		 1856 break;
1857 case PCI_DEVICE_ID_HELIOS_DCSP:
a747c9ce
JS		 1858 m = (typeof(m)){"LP11002-SP", "PCI-X2",
1859 "Fibre Channel Adapter"};
e4adb204
JSEC		 1860 break;
1861 case PCI_DEVICE_ID_NEPTUNE:
a747c9ce 1862 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 1863 break;
1864 case PCI_DEVICE_ID_NEPTUNE_SCSP:
a747c9ce 1865 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 1866 break;
1867 case PCI_DEVICE_ID_NEPTUNE_DCSP:
a747c9ce 1868 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
e4adb204 1869 break;
dea3101e 1870 case PCI_DEVICE_ID_BMID:
a747c9ce 1871 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
dea3101e 1872 break;
1873 case PCI_DEVICE_ID_BSMB:
a747c9ce 1874 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
dea3101e 1875 break;
1876 case PCI_DEVICE_ID_ZEPHYR:
a747c9ce 1877 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
dea3101e 1878 break;
e4adb204 1879 case PCI_DEVICE_ID_ZEPHYR_SCSP:
a747c9ce 1880 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 1881 break;
1882 case PCI_DEVICE_ID_ZEPHYR_DCSP:
a747c9ce 1883 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
a257bf90 1884 GE = 1;
e4adb204 1885 break;
dea3101e 1886 case PCI_DEVICE_ID_ZMID:
a747c9ce 1887 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
dea3101e 1888 break;
1889 case PCI_DEVICE_ID_ZSMB:
a747c9ce 1890 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
dea3101e 1891 break;
1892 case PCI_DEVICE_ID_LP101:
a747c9ce 1893 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
dea3101e 1894 break;
1895 case PCI_DEVICE_ID_LP10000S:
a747c9ce 1896 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
06325e74 1897 break;
e4adb204 1898 case PCI_DEVICE_ID_LP11000S:
a747c9ce 1899 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
18a3b596 1900 break;
e4adb204 1901 case PCI_DEVICE_ID_LPE11000S:
a747c9ce 1902 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
5cc36b3c 1903 break;
b87eab38 1904 case PCI_DEVICE_ID_SAT:
a747c9ce 1905 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1906 break;
1907 case PCI_DEVICE_ID_SAT_MID:
a747c9ce 1908 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1909 break;
1910 case PCI_DEVICE_ID_SAT_SMB:
a747c9ce 1911 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1912 break;
1913 case PCI_DEVICE_ID_SAT_DCSP:
a747c9ce 1914 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1915 break;
1916 case PCI_DEVICE_ID_SAT_SCSP:
a747c9ce 1917 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1918 break;
1919 case PCI_DEVICE_ID_SAT_S:
a747c9ce 1920 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
b87eab38 1921 break;
84774a4d 1922 case PCI_DEVICE_ID_HORNET:
a747c9ce 1923 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
84774a4d
JS		 1924 GE = 1;
1925 break;
1926 case PCI_DEVICE_ID_PROTEUS_VF:
a747c9ce
JS		 1927 m = (typeof(m)){"LPev12000", "PCIe IOV",
1928 "Fibre Channel Adapter"};
84774a4d
JS		 1929 break;
1930 case PCI_DEVICE_ID_PROTEUS_PF:
a747c9ce
JS		 1931 m = (typeof(m)){"LPev12000", "PCIe IOV",
1932 "Fibre Channel Adapter"};
84774a4d
JS		 1933 break;
1934 case PCI_DEVICE_ID_PROTEUS_S:
a747c9ce
JS		 1935 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1936 "Fibre Channel Adapter"};
84774a4d 1937 break;
da0436e9
JS		 1938 case PCI_DEVICE_ID_TIGERSHARK:
1939 oneConnect = 1;
a747c9ce 1940 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
da0436e9 1941 break;
a747c9ce 1942 case PCI_DEVICE_ID_TOMCAT:
6669f9bb 1943 oneConnect = 1;
a747c9ce
JS		 1944 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
1945 break;
1946 case PCI_DEVICE_ID_FALCON:
1947 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
1948 "EmulexSecure Fibre"};
6669f9bb 1949 break;
98fc5dd9
JS		 1950 case PCI_DEVICE_ID_BALIUS:
1951 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
1952 "Fibre Channel Adapter"};
1953 break;
085c647c 1954 case PCI_DEVICE_ID_LANCER_FC:
c0c11512
JS		 1955 case PCI_DEVICE_ID_LANCER_FC_VF:
1956 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
085c647c
JS		 1957 break;
1958 case PCI_DEVICE_ID_LANCER_FCOE:
c0c11512 1959 case PCI_DEVICE_ID_LANCER_FCOE_VF:
085c647c 1960 oneConnect = 1;
c0c11512 1961 m = (typeof(m)){"OCe50100", "PCIe", "FCoE"};
085c647c 1962 break;
5cc36b3c 1963 default:
a747c9ce 1964 m = (typeof(m)){"Unknown", "", ""};
e4adb204 1965 break;
dea3101e 1966 }
74b72a59
JW		 1967
1968 if (mdp && mdp[0] == '\0')
1969 snprintf(mdp, 79,"%s", m.name);
c0c11512
JS		 1970 /*
1971 * oneConnect hba requires special processing, they are all initiators
da0436e9
JS		 1972 * and we put the port number on the end
1973 */
1974 if (descp && descp[0] == '\0') {
1975 if (oneConnect)
1976 snprintf(descp, 255,
a747c9ce
JS		 1977 "Emulex OneConnect %s, %s Initiator, Port %s",
1978 m.name, m.function,
da0436e9
JS		 1979 phba->Port);
1980 else
1981 snprintf(descp, 255,
1982 "Emulex %s %d%s %s %s",
a747c9ce
JS		 1983 m.name, max_speed, (GE) ? "GE" : "Gb",
1984 m.bus, m.function);
da0436e9 1985 }
dea3101e 1986}
1987
e59058c4 1988/**
3621a710 1989 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
e59058c4
JS		 1990 * @phba: pointer to lpfc hba data structure.
1991 * @pring: pointer to a IOCB ring.
1992 * @cnt: the number of IOCBs to be posted to the IOCB ring.
1993 *
1994 * This routine posts a given number of IOCBs with the associated DMA buffer
1995 * descriptors specified by the cnt argument to the given IOCB ring.
1996 *
1997 * Return codes
1998 * The number of IOCBs NOT able to be posted to the IOCB ring.
1999 **/
dea3101e 2000int
495a714c 2001lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
dea3101e 2002{
2003 IOCB_t *icmd;
0bd4ca25 2004 struct lpfc_iocbq *iocb;
dea3101e 2005 struct lpfc_dmabuf *mp1, *mp2;
2006
2007 cnt += pring->missbufcnt;
2008
2009 /* While there are buffers to post */
2010 while (cnt > 0) {
2011 /* Allocate buffer for command iocb */
0bd4ca25 2012 iocb = lpfc_sli_get_iocbq(phba);
dea3101e 2013 if (iocb == NULL) {
2014 pring->missbufcnt = cnt;
2015 return cnt;
2016 }
dea3101e 2017 icmd = &iocb->iocb;
2018
2019 /* 2 buffers can be posted per command */
2020 /* Allocate buffer to post */
2021 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2022 if (mp1)
98c9ea5c
JS		 2023 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2024 if (!mp1 || !mp1->virt) {
c9475cb0 2025 kfree(mp1);
604a3e30 2026 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2027 pring->missbufcnt = cnt;
2028 return cnt;
2029 }
2030
2031 INIT_LIST_HEAD(&mp1->list);
2032 /* Allocate buffer to post */
2033 if (cnt > 1) {
2034 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2035 if (mp2)
2036 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2037 &mp2->phys);
98c9ea5c 2038 if (!mp2 || !mp2->virt) {
c9475cb0 2039 kfree(mp2);
dea3101e 2040 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2041 kfree(mp1);
604a3e30 2042 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2043 pring->missbufcnt = cnt;
2044 return cnt;
2045 }
2046
2047 INIT_LIST_HEAD(&mp2->list);
2048 } else {
2049 mp2 = NULL;
2050 }
2051
2052 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2053 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2054 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2055 icmd->ulpBdeCount = 1;
2056 cnt--;
2057 if (mp2) {
2058 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2059 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2060 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2061 cnt--;
2062 icmd->ulpBdeCount = 2;
2063 }
2064
2065 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2066 icmd->ulpLe = 1;
2067
3772a991
JS		 2068 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2069 IOCB_ERROR) {
dea3101e 2070 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2071 kfree(mp1);
2072 cnt++;
2073 if (mp2) {
2074 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2075 kfree(mp2);
2076 cnt++;
2077 }
604a3e30 2078 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2079 pring->missbufcnt = cnt;
dea3101e 2080 return cnt;
2081 }
dea3101e 2082 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
92d7f7b0 2083 if (mp2)
dea3101e 2084 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
dea3101e 2085 }
2086 pring->missbufcnt = 0;
2087 return 0;
2088}
2089
e59058c4 2090/**
3621a710 2091 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
e59058c4
JS		 2092 * @phba: pointer to lpfc hba data structure.
2093 *
2094 * This routine posts initial receive IOCB buffers to the ELS ring. The
2095 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2096 * set to 64 IOCBs.
2097 *
2098 * Return codes
2099 * 0 - success (currently always success)
2100 **/
dea3101e 2101static int
2e0fef85 2102lpfc_post_rcv_buf(struct lpfc_hba *phba)
dea3101e 2103{
2104 struct lpfc_sli *psli = &phba->sli;
2105
2106 /* Ring 0, ELS / CT buffers */
495a714c 2107 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
dea3101e 2108 /* Ring 2 - FCP no buffers needed */
2109
2110 return 0;
2111}
2112
2113#define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2114
e59058c4 2115/**
3621a710 2116 * lpfc_sha_init - Set up initial array of hash table entries
e59058c4
JS		 2117 * @HashResultPointer: pointer to an array as hash table.
2118 *
2119 * This routine sets up the initial values to the array of hash table entries
2120 * for the LC HBAs.
2121 **/
dea3101e 2122static void
2123lpfc_sha_init(uint32_t * HashResultPointer)
2124{
2125 HashResultPointer[0] = 0x67452301;
2126 HashResultPointer[1] = 0xEFCDAB89;
2127 HashResultPointer[2] = 0x98BADCFE;
2128 HashResultPointer[3] = 0x10325476;
2129 HashResultPointer[4] = 0xC3D2E1F0;
2130}
2131
e59058c4 2132/**
3621a710 2133 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
e59058c4
JS		 2134 * @HashResultPointer: pointer to an initial/result hash table.
2135 * @HashWorkingPointer: pointer to an working hash table.
2136 *
2137 * This routine iterates an initial hash table pointed by @HashResultPointer
2138 * with the values from the working hash table pointeed by @HashWorkingPointer.
2139 * The results are putting back to the initial hash table, returned through
2140 * the @HashResultPointer as the result hash table.
2141 **/
dea3101e 2142static void
2143lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2144{
2145 int t;
2146 uint32_t TEMP;
2147 uint32_t A, B, C, D, E;
2148 t = 16;
2149 do {
2150 HashWorkingPointer[t] =
2151 S(1,
2152 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2153 8] ^
2154 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2155 } while (++t <= 79);
2156 t = 0;
2157 A = HashResultPointer[0];
2158 B = HashResultPointer[1];
2159 C = HashResultPointer[2];
2160 D = HashResultPointer[3];
2161 E = HashResultPointer[4];
2162
2163 do {
2164 if (t < 20) {
2165 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2166 } else if (t < 40) {
2167 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2168 } else if (t < 60) {
2169 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2170 } else {
2171 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2172 }
2173 TEMP += S(5, A) + E + HashWorkingPointer[t];
2174 E = D;
2175 D = C;
2176 C = S(30, B);
2177 B = A;
2178 A = TEMP;
2179 } while (++t <= 79);
2180
2181 HashResultPointer[0] += A;
2182 HashResultPointer[1] += B;
2183 HashResultPointer[2] += C;
2184 HashResultPointer[3] += D;
2185 HashResultPointer[4] += E;
2186
2187}
2188
e59058c4 2189/**
3621a710 2190 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
e59058c4
JS		 2191 * @RandomChallenge: pointer to the entry of host challenge random number array.
2192 * @HashWorking: pointer to the entry of the working hash array.
2193 *
2194 * This routine calculates the working hash array referred by @HashWorking
2195 * from the challenge random numbers associated with the host, referred by
2196 * @RandomChallenge. The result is put into the entry of the working hash
2197 * array and returned by reference through @HashWorking.
2198 **/
dea3101e 2199static void
2200lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2201{
2202 *HashWorking = (*RandomChallenge ^ *HashWorking);
2203}
2204
e59058c4 2205/**
3621a710 2206 * lpfc_hba_init - Perform special handling for LC HBA initialization
e59058c4
JS		 2207 * @phba: pointer to lpfc hba data structure.
2208 * @hbainit: pointer to an array of unsigned 32-bit integers.
2209 *
2210 * This routine performs the special handling for LC HBA initialization.
2211 **/
dea3101e 2212void
2213lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2214{
2215 int t;
2216 uint32_t *HashWorking;
2e0fef85 2217 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
dea3101e 2218
bbfbbbc1 2219 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
dea3101e 2220 if (!HashWorking)
2221 return;
2222
dea3101e 2223 HashWorking[0] = HashWorking[78] = *pwwnn++;
2224 HashWorking[1] = HashWorking[79] = *pwwnn;
2225
2226 for (t = 0; t < 7; t++)
2227 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2228
2229 lpfc_sha_init(hbainit);
2230 lpfc_sha_iterate(hbainit, HashWorking);
2231 kfree(HashWorking);
2232}
2233
e59058c4 2234/**
3621a710 2235 * lpfc_cleanup - Performs vport cleanups before deleting a vport
e59058c4
JS		 2236 * @vport: pointer to a virtual N_Port data structure.
2237 *
2238 * This routine performs the necessary cleanups before deleting the @vport.
2239 * It invokes the discovery state machine to perform necessary state
2240 * transitions and to release the ndlps associated with the @vport. Note,
2241 * the physical port is treated as @vport 0.
2242 **/
87af33fe 2243void
2e0fef85 2244lpfc_cleanup(struct lpfc_vport *vport)
dea3101e 2245{
87af33fe 2246 struct lpfc_hba *phba = vport->phba;
dea3101e 2247 struct lpfc_nodelist *ndlp, *next_ndlp;
a8adb832 2248 int i = 0;
dea3101e 2249
87af33fe
JS		 2250 if (phba->link_state > LPFC_LINK_DOWN)
2251 lpfc_port_link_failure(vport);
2252
2253 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
e47c9093
JS		 2254 if (!NLP_CHK_NODE_ACT(ndlp)) {
2255 ndlp = lpfc_enable_node(vport, ndlp,
2256 NLP_STE_UNUSED_NODE);
2257 if (!ndlp)
2258 continue;
2259 spin_lock_irq(&phba->ndlp_lock);
2260 NLP_SET_FREE_REQ(ndlp);
2261 spin_unlock_irq(&phba->ndlp_lock);
2262 /* Trigger the release of the ndlp memory */
2263 lpfc_nlp_put(ndlp);
2264 continue;
2265 }
2266 spin_lock_irq(&phba->ndlp_lock);
2267 if (NLP_CHK_FREE_REQ(ndlp)) {
2268 /* The ndlp should not be in memory free mode already */
2269 spin_unlock_irq(&phba->ndlp_lock);
2270 continue;
2271 } else
2272 /* Indicate request for freeing ndlp memory */
2273 NLP_SET_FREE_REQ(ndlp);
2274 spin_unlock_irq(&phba->ndlp_lock);
2275
58da1ffb
JS		 2276 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2277 ndlp->nlp_DID == Fabric_DID) {
2278 /* Just free up ndlp with Fabric_DID for vports */
2279 lpfc_nlp_put(ndlp);
2280 continue;
2281 }
2282
87af33fe
JS		 2283 if (ndlp->nlp_type & NLP_FABRIC)
2284 lpfc_disc_state_machine(vport, ndlp, NULL,
2285 NLP_EVT_DEVICE_RECOVERY);
e47c9093 2286
87af33fe
JS		 2287 lpfc_disc_state_machine(vport, ndlp, NULL,
2288 NLP_EVT_DEVICE_RM);
495a714c 2289
87af33fe
JS		 2290 }
2291
a8adb832
JS		 2292 /* At this point, ALL ndlp's should be gone
2293 * because of the previous NLP_EVT_DEVICE_RM.
2294 * Lets wait for this to happen, if needed.
2295 */
87af33fe 2296 while (!list_empty(&vport->fc_nodes)) {
a8adb832 2297 if (i++ > 3000) {
87af33fe 2298 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
a8adb832 2299 "0233 Nodelist not empty\n");
e47c9093
JS		 2300 list_for_each_entry_safe(ndlp, next_ndlp,
2301 &vport->fc_nodes, nlp_listp) {
2302 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2303 LOG_NODE,
d7c255b2 2304 "0282 did:x%x ndlp:x%p "
e47c9093
JS		 2305 "usgmap:x%x refcnt:%d\n",
2306 ndlp->nlp_DID, (void *)ndlp,
2307 ndlp->nlp_usg_map,
2308 atomic_read(
2309 &ndlp->kref.refcount));
2310 }
a8adb832 2311 break;
87af33fe 2312 }
a8adb832
JS		 2313
2314 /* Wait for any activity on ndlps to settle */
2315 msleep(10);
87af33fe 2316 }
1151e3ec 2317 lpfc_cleanup_vports_rrqs(vport, NULL);
dea3101e 2318}
2319
e59058c4 2320/**
3621a710 2321 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
e59058c4
JS		 2322 * @vport: pointer to a virtual N_Port data structure.
2323 *
2324 * This routine stops all the timers associated with a @vport. This function
2325 * is invoked before disabling or deleting a @vport. Note that the physical
2326 * port is treated as @vport 0.
2327 **/
92d7f7b0
JS		 2328void
2329lpfc_stop_vport_timers(struct lpfc_vport *vport)
dea3101e 2330{
92d7f7b0
JS		 2331 del_timer_sync(&vport->els_tmofunc);
2332 del_timer_sync(&vport->fc_fdmitmo);
92494144 2333 del_timer_sync(&vport->delayed_disc_tmo);
92d7f7b0
JS		 2334 lpfc_can_disctmo(vport);
2335 return;
dea3101e 2336}
2337
ecfd03c6
JS		 2338/**
2339 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2340 * @phba: pointer to lpfc hba data structure.
2341 *
2342 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2343 * caller of this routine should already hold the host lock.
2344 **/
2345void
2346__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2347{
5ac6b303
JS		 2348 /* Clear pending FCF rediscovery wait flag */
2349 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2350
ecfd03c6
JS		 2351 /* Now, try to stop the timer */
2352 del_timer(&phba->fcf.redisc_wait);
2353}
2354
2355/**
2356 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2357 * @phba: pointer to lpfc hba data structure.
2358 *
2359 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2360 * checks whether the FCF rediscovery wait timer is pending with the host
2361 * lock held before proceeding with disabling the timer and clearing the
2362 * wait timer pendig flag.
2363 **/
2364void
2365lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2366{
2367 spin_lock_irq(&phba->hbalock);
2368 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2369 /* FCF rediscovery timer already fired or stopped */
2370 spin_unlock_irq(&phba->hbalock);
2371 return;
2372 }
2373 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
5ac6b303
JS		 2374 /* Clear failover in progress flags */
2375 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
ecfd03c6
JS		 2376 spin_unlock_irq(&phba->hbalock);
2377}
2378
e59058c4 2379/**
3772a991 2380 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
e59058c4
JS		 2381 * @phba: pointer to lpfc hba data structure.
2382 *
2383 * This routine stops all the timers associated with a HBA. This function is
2384 * invoked before either putting a HBA offline or unloading the driver.
2385 **/
3772a991
JS		 2386void
2387lpfc_stop_hba_timers(struct lpfc_hba *phba)
dea3101e 2388{
51ef4c26 2389 lpfc_stop_vport_timers(phba->pport);
2e0fef85 2390 del_timer_sync(&phba->sli.mbox_tmo);
92d7f7b0 2391 del_timer_sync(&phba->fabric_block_timer);
9399627f 2392 del_timer_sync(&phba->eratt_poll);
3772a991 2393 del_timer_sync(&phba->hb_tmofunc);
1151e3ec
JS		 2394 if (phba->sli_rev == LPFC_SLI_REV4) {
2395 del_timer_sync(&phba->rrq_tmr);
2396 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2397 }
3772a991
JS		 2398 phba->hb_outstanding = 0;
2399
2400 switch (phba->pci_dev_grp) {
2401 case LPFC_PCI_DEV_LP:
2402 /* Stop any LightPulse device specific driver timers */
2403 del_timer_sync(&phba->fcp_poll_timer);
2404 break;
2405 case LPFC_PCI_DEV_OC:
2406 /* Stop any OneConnect device sepcific driver timers */
ecfd03c6 2407 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3772a991
JS		 2408 break;
2409 default:
2410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2411 "0297 Invalid device group (x%x)\n",
2412 phba->pci_dev_grp);
2413 break;
2414 }
2e0fef85 2415 return;
dea3101e 2416}
2417
e59058c4 2418/**
3621a710 2419 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
e59058c4
JS		 2420 * @phba: pointer to lpfc hba data structure.
2421 *
2422 * This routine marks a HBA's management interface as blocked. Once the HBA's
2423 * management interface is marked as blocked, all the user space access to
2424 * the HBA, whether they are from sysfs interface or libdfc interface will
2425 * all be blocked. The HBA is set to block the management interface when the
2426 * driver prepares the HBA interface for online or offline.
2427 **/
a6ababd2
AB		 2428static void
2429lpfc_block_mgmt_io(struct lpfc_hba * phba)
2430{
2431 unsigned long iflag;
6e7288d9
JS		 2432 uint8_t actcmd = MBX_HEARTBEAT;
2433 unsigned long timeout;
2434
a6ababd2
AB		 2435
2436 spin_lock_irqsave(&phba->hbalock, iflag);
2437 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
6e7288d9
JS		 2438 if (phba->sli.mbox_active)
2439 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
a6ababd2 2440 spin_unlock_irqrestore(&phba->hbalock, iflag);
6e7288d9
JS		 2441 /* Determine how long we might wait for the active mailbox
2442 * command to be gracefully completed by firmware.
2443 */
2444 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
2445 jiffies;
2446 /* Wait for the outstnading mailbox command to complete */
2447 while (phba->sli.mbox_active) {
2448 /* Check active mailbox complete status every 2ms */
2449 msleep(2);
2450 if (time_after(jiffies, timeout)) {
2451 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2452 "2813 Mgmt IO is Blocked %x "
2453 "- mbox cmd %x still active\n",
2454 phba->sli.sli_flag, actcmd);
2455 break;
2456 }
2457 }
a6ababd2
AB		 2458}
2459
e59058c4 2460/**
3621a710 2461 * lpfc_online - Initialize and bring a HBA online
e59058c4
JS		 2462 * @phba: pointer to lpfc hba data structure.
2463 *
2464 * This routine initializes the HBA and brings a HBA online. During this
2465 * process, the management interface is blocked to prevent user space access
2466 * to the HBA interfering with the driver initialization.
2467 *
2468 * Return codes
2469 * 0 - successful
2470 * 1 - failed
2471 **/
dea3101e 2472int
2e0fef85 2473lpfc_online(struct lpfc_hba *phba)
dea3101e 2474{
372bd282 2475 struct lpfc_vport *vport;
549e55cd
JS		 2476 struct lpfc_vport **vports;
2477 int i;
2e0fef85 2478
dea3101e 2479 if (!phba)
2480 return 0;
372bd282 2481 vport = phba->pport;
dea3101e 2482
2e0fef85 2483 if (!(vport->fc_flag & FC_OFFLINE_MODE))
dea3101e 2484 return 0;
2485
ed957684 2486 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
e8b62011 2487 "0458 Bring Adapter online\n");
dea3101e 2488
46fa311e
JS		 2489 lpfc_block_mgmt_io(phba);
2490
2491 if (!lpfc_sli_queue_setup(phba)) {
2492 lpfc_unblock_mgmt_io(phba);
dea3101e 2493 return 1;
46fa311e 2494 }
dea3101e 2495
da0436e9
JS		 2496 if (phba->sli_rev == LPFC_SLI_REV4) {
2497 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2498 lpfc_unblock_mgmt_io(phba);
2499 return 1;
2500 }
2501 } else {
2502 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2503 lpfc_unblock_mgmt_io(phba);
2504 return 1;
2505 }
46fa311e 2506 }
dea3101e 2507
549e55cd
JS		 2508 vports = lpfc_create_vport_work_array(phba);
2509 if (vports != NULL)
da0436e9 2510 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
549e55cd
JS		 2511 struct Scsi_Host *shost;
2512 shost = lpfc_shost_from_vport(vports[i]);
2513 spin_lock_irq(shost->host_lock);
2514 vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2515 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2516 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
1c6834a7
JS		 2517 if (phba->sli_rev == LPFC_SLI_REV4)
2518 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
549e55cd
JS		 2519 spin_unlock_irq(shost->host_lock);
2520 }
09372820 2521 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 2522
46fa311e 2523 lpfc_unblock_mgmt_io(phba);
dea3101e 2524 return 0;
2525}
2526
e59058c4 2527/**
3621a710 2528 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
e59058c4
JS		 2529 * @phba: pointer to lpfc hba data structure.
2530 *
2531 * This routine marks a HBA's management interface as not blocked. Once the
2532 * HBA's management interface is marked as not blocked, all the user space
2533 * access to the HBA, whether they are from sysfs interface or libdfc
2534 * interface will be allowed. The HBA is set to block the management interface
2535 * when the driver prepares the HBA interface for online or offline and then
2536 * set to unblock the management interface afterwards.
2537 **/
46fa311e
JS		 2538void
2539lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2540{
2541 unsigned long iflag;
2542
2e0fef85
JS		 2543 spin_lock_irqsave(&phba->hbalock, iflag);
2544 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2545 spin_unlock_irqrestore(&phba->hbalock, iflag);
46fa311e
JS		 2546}
2547
e59058c4 2548/**
3621a710 2549 * lpfc_offline_prep - Prepare a HBA to be brought offline
e59058c4
JS		 2550 * @phba: pointer to lpfc hba data structure.
2551 *
2552 * This routine is invoked to prepare a HBA to be brought offline. It performs
2553 * unregistration login to all the nodes on all vports and flushes the mailbox
2554 * queue to make it ready to be brought offline.
2555 **/
46fa311e
JS		 2556void
2557lpfc_offline_prep(struct lpfc_hba * phba)
2558{
2e0fef85 2559 struct lpfc_vport *vport = phba->pport;
46fa311e 2560 struct lpfc_nodelist *ndlp, *next_ndlp;
87af33fe 2561 struct lpfc_vport **vports;
72100cc4 2562 struct Scsi_Host *shost;
87af33fe 2563 int i;
dea3101e 2564
2e0fef85 2565 if (vport->fc_flag & FC_OFFLINE_MODE)
46fa311e 2566 return;
dea3101e 2567
46fa311e 2568 lpfc_block_mgmt_io(phba);
dea3101e 2569
2570 lpfc_linkdown(phba);
2571
87af33fe
JS		 2572 /* Issue an unreg_login to all nodes on all vports */
2573 vports = lpfc_create_vport_work_array(phba);
2574 if (vports != NULL) {
da0436e9 2575 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
a8adb832
JS		 2576 if (vports[i]->load_flag & FC_UNLOADING)
2577 continue;
72100cc4
JS		 2578 shost = lpfc_shost_from_vport(vports[i]);
2579 spin_lock_irq(shost->host_lock);
c868595d 2580 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
695a814e
JS		 2581 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2582 vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
72100cc4 2583 spin_unlock_irq(shost->host_lock);
695a814e 2584
87af33fe
JS		 2585 shost = lpfc_shost_from_vport(vports[i]);
2586 list_for_each_entry_safe(ndlp, next_ndlp,
2587 &vports[i]->fc_nodes,
2588 nlp_listp) {
e47c9093
JS		 2589 if (!NLP_CHK_NODE_ACT(ndlp))
2590 continue;
87af33fe
JS		 2591 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2592 continue;
2593 if (ndlp->nlp_type & NLP_FABRIC) {
2594 lpfc_disc_state_machine(vports[i], ndlp,
2595 NULL, NLP_EVT_DEVICE_RECOVERY);
2596 lpfc_disc_state_machine(vports[i], ndlp,
2597 NULL, NLP_EVT_DEVICE_RM);
2598 }
2599 spin_lock_irq(shost->host_lock);
2600 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2601 spin_unlock_irq(shost->host_lock);
2602 lpfc_unreg_rpi(vports[i], ndlp);
2603 }
2604 }
2605 }
09372820 2606 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 2607
04c68496 2608 lpfc_sli_mbox_sys_shutdown(phba);
46fa311e
JS		 2609}
2610
e59058c4 2611/**
3621a710 2612 * lpfc_offline - Bring a HBA offline
e59058c4
JS		 2613 * @phba: pointer to lpfc hba data structure.
2614 *
2615 * This routine actually brings a HBA offline. It stops all the timers
2616 * associated with the HBA, brings down the SLI layer, and eventually
2617 * marks the HBA as in offline state for the upper layer protocol.
2618 **/
46fa311e 2619void
2e0fef85 2620lpfc_offline(struct lpfc_hba *phba)
46fa311e 2621{
549e55cd
JS		 2622 struct Scsi_Host *shost;
2623 struct lpfc_vport **vports;
2624 int i;
46fa311e 2625
549e55cd 2626 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
46fa311e 2627 return;
688a8863 2628
da0436e9
JS		 2629 /* stop port and all timers associated with this hba */
2630 lpfc_stop_port(phba);
51ef4c26
JS		 2631 vports = lpfc_create_vport_work_array(phba);
2632 if (vports != NULL)
da0436e9 2633 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
51ef4c26 2634 lpfc_stop_vport_timers(vports[i]);
09372820 2635 lpfc_destroy_vport_work_array(phba, vports);
92d7f7b0 2636 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
e8b62011 2637 "0460 Bring Adapter offline\n");
dea3101e 2638 /* Bring down the SLI Layer and cleanup. The HBA is offline
2639 now. */
2640 lpfc_sli_hba_down(phba);
92d7f7b0 2641 spin_lock_irq(&phba->hbalock);
7054a606 2642 phba->work_ha = 0;
92d7f7b0 2643 spin_unlock_irq(&phba->hbalock);
549e55cd
JS		 2644 vports = lpfc_create_vport_work_array(phba);
2645 if (vports != NULL)
da0436e9 2646 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
549e55cd 2647 shost = lpfc_shost_from_vport(vports[i]);
549e55cd
JS		 2648 spin_lock_irq(shost->host_lock);
2649 vports[i]->work_port_events = 0;
2650 vports[i]->fc_flag |= FC_OFFLINE_MODE;
2651 spin_unlock_irq(shost->host_lock);
2652 }
09372820 2653 lpfc_destroy_vport_work_array(phba, vports);
dea3101e 2654}
2655
e59058c4 2656/**
3621a710 2657 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
e59058c4
JS		 2658 * @phba: pointer to lpfc hba data structure.
2659 *
2660 * This routine is to free all the SCSI buffers and IOCBs from the driver
2661 * list back to kernel. It is called from lpfc_pci_remove_one to free
2662 * the internal resources before the device is removed from the system.
2663 *
2664 * Return codes
2665 * 0 - successful (for now, it always returns 0)
2666 **/
dea3101e 2667static int
2e0fef85 2668lpfc_scsi_free(struct lpfc_hba *phba)
dea3101e 2669{
2670 struct lpfc_scsi_buf *sb, *sb_next;
2671 struct lpfc_iocbq *io, *io_next;
2672
2e0fef85 2673 spin_lock_irq(&phba->hbalock);
dea3101e 2674 /* Release all the lpfc_scsi_bufs maintained by this host. */
1c6f4ef5 2675 spin_lock(&phba->scsi_buf_list_lock);
dea3101e 2676 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2677 list_del(&sb->list);
2678 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
92d7f7b0 2679 sb->dma_handle);
dea3101e 2680 kfree(sb);
2681 phba->total_scsi_bufs--;
2682 }
1c6f4ef5 2683 spin_unlock(&phba->scsi_buf_list_lock);
dea3101e 2684
2685 /* Release all the lpfc_iocbq entries maintained by this host. */
2686 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2687 list_del(&io->list);
2688 kfree(io);
2689 phba->total_iocbq_bufs--;
2690 }
6d368e53 2691
2e0fef85 2692 spin_unlock_irq(&phba->hbalock);
dea3101e 2693 return 0;
2694}
2695
e59058c4 2696/**
3621a710 2697 * lpfc_create_port - Create an FC port
e59058c4
JS		 2698 * @phba: pointer to lpfc hba data structure.
2699 * @instance: a unique integer ID to this FC port.
2700 * @dev: pointer to the device data structure.
2701 *
2702 * This routine creates a FC port for the upper layer protocol. The FC port
2703 * can be created on top of either a physical port or a virtual port provided
2704 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2705 * and associates the FC port created before adding the shost into the SCSI
2706 * layer.
2707 *
2708 * Return codes
2709 * @vport - pointer to the virtual N_Port data structure.
2710 * NULL - port create failed.
2711 **/
2e0fef85 2712struct lpfc_vport *
3de2a653 2713lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
47a8617c 2714{
2e0fef85
JS		 2715 struct lpfc_vport *vport;
2716 struct Scsi_Host *shost;
2717 int error = 0;
47a8617c 2718
3de2a653
JS		 2719 if (dev != &phba->pcidev->dev)
2720 shost = scsi_host_alloc(&lpfc_vport_template,
2721 sizeof(struct lpfc_vport));
2722 else
2723 shost = scsi_host_alloc(&lpfc_template,
2724 sizeof(struct lpfc_vport));
2e0fef85
JS		 2725 if (!shost)
2726 goto out;
47a8617c 2727
2e0fef85
JS		 2728 vport = (struct lpfc_vport *) shost->hostdata;
2729 vport->phba = phba;
2e0fef85 2730 vport->load_flag |= FC_LOADING;
92d7f7b0 2731 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
7f5f3d0d 2732 vport->fc_rscn_flush = 0;
47a8617c 2733
3de2a653 2734 lpfc_get_vport_cfgparam(vport);
2e0fef85
JS		 2735 shost->unique_id = instance;
2736 shost->max_id = LPFC_MAX_TARGET;
3de2a653 2737 shost->max_lun = vport->cfg_max_luns;
2e0fef85
JS		 2738 shost->this_id = -1;
2739 shost->max_cmd_len = 16;
da0436e9 2740 if (phba->sli_rev == LPFC_SLI_REV4) {
28baac74 2741 shost->dma_boundary =
cb5172ea 2742 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
da0436e9
JS		 2743 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2744 }
81301a9b 2745
47a8617c 2746 /*
2e0fef85
JS		 2747 * Set initial can_queue value since 0 is no longer supported and
2748 * scsi_add_host will fail. This will be adjusted later based on the
2749 * max xri value determined in hba setup.
47a8617c 2750 */
2e0fef85 2751 shost->can_queue = phba->cfg_hba_queue_depth - 10;
3de2a653 2752 if (dev != &phba->pcidev->dev) {
92d7f7b0
JS		 2753 shost->transportt = lpfc_vport_transport_template;
2754 vport->port_type = LPFC_NPIV_PORT;
2755 } else {
2756 shost->transportt = lpfc_transport_template;
2757 vport->port_type = LPFC_PHYSICAL_PORT;
2758 }
47a8617c 2759
2e0fef85
JS		 2760 /* Initialize all internally managed lists. */
2761 INIT_LIST_HEAD(&vport->fc_nodes);
da0436e9 2762 INIT_LIST_HEAD(&vport->rcv_buffer_list);
2e0fef85 2763 spin_lock_init(&vport->work_port_lock);
47a8617c 2764
2e0fef85
JS		 2765 init_timer(&vport->fc_disctmo);
2766 vport->fc_disctmo.function = lpfc_disc_timeout;
92d7f7b0 2767 vport->fc_disctmo.data = (unsigned long)vport;
47a8617c 2768
2e0fef85
JS		 2769 init_timer(&vport->fc_fdmitmo);
2770 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
92d7f7b0 2771 vport->fc_fdmitmo.data = (unsigned long)vport;
47a8617c 2772
2e0fef85
JS		 2773 init_timer(&vport->els_tmofunc);
2774 vport->els_tmofunc.function = lpfc_els_timeout;
92d7f7b0 2775 vport->els_tmofunc.data = (unsigned long)vport;
92494144
JS		 2776
2777 init_timer(&vport->delayed_disc_tmo);
2778 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
2779 vport->delayed_disc_tmo.data = (unsigned long)vport;
2780
d139b9bd 2781 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2e0fef85
JS		 2782 if (error)
2783 goto out_put_shost;
47a8617c 2784
549e55cd 2785 spin_lock_irq(&phba->hbalock);
2e0fef85 2786 list_add_tail(&vport->listentry, &phba->port_list);
549e55cd 2787 spin_unlock_irq(&phba->hbalock);
2e0fef85 2788 return vport;
47a8617c 2789
2e0fef85
JS		 2790out_put_shost:
2791 scsi_host_put(shost);
2792out:
2793 return NULL;
47a8617c
JS		 2794}
2795
e59058c4 2796/**
3621a710 2797 * destroy_port - destroy an FC port
e59058c4
JS		 2798 * @vport: pointer to an lpfc virtual N_Port data structure.
2799 *
2800 * This routine destroys a FC port from the upper layer protocol. All the
2801 * resources associated with the port are released.
2802 **/
2e0fef85
JS		 2803void
2804destroy_port(struct lpfc_vport *vport)
47a8617c 2805{
92d7f7b0
JS		 2806 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2807 struct lpfc_hba *phba = vport->phba;
47a8617c 2808
858c9f6c 2809 lpfc_debugfs_terminate(vport);
92d7f7b0
JS		 2810 fc_remove_host(shost);
2811 scsi_remove_host(shost);
47a8617c 2812
92d7f7b0
JS		 2813 spin_lock_irq(&phba->hbalock);
2814 list_del_init(&vport->listentry);
2815 spin_unlock_irq(&phba->hbalock);
47a8617c 2816
92d7f7b0 2817 lpfc_cleanup(vport);
47a8617c 2818 return;
47a8617c
JS		 2819}
2820
e59058c4 2821/**
3621a710 2822 * lpfc_get_instance - Get a unique integer ID
e59058c4
JS		 2823 *
2824 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2825 * uses the kernel idr facility to perform the task.
2826 *
2827 * Return codes:
2828 * instance - a unique integer ID allocated as the new instance.
2829 * -1 - lpfc get instance failed.
2830 **/
92d7f7b0
JS		 2831int
2832lpfc_get_instance(void)
2833{
2834 int instance = 0;
47a8617c 2835
92d7f7b0
JS		 2836 /* Assign an unused number */
2837 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2838 return -1;
2839 if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2840 return -1;
2841 return instance;
47a8617c
JS		 2842}
2843
e59058c4 2844/**
3621a710 2845 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
e59058c4
JS		 2846 * @shost: pointer to SCSI host data structure.
2847 * @time: elapsed time of the scan in jiffies.
2848 *
2849 * This routine is called by the SCSI layer with a SCSI host to determine
2850 * whether the scan host is finished.
2851 *
2852 * Note: there is no scan_start function as adapter initialization will have
2853 * asynchronously kicked off the link initialization.
2854 *
2855 * Return codes
2856 * 0 - SCSI host scan is not over yet.
2857 * 1 - SCSI host scan is over.
2858 **/
47a8617c
JS		 2859int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2860{
2e0fef85
JS		 2861 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2862 struct lpfc_hba *phba = vport->phba;
858c9f6c 2863 int stat = 0;
47a8617c 2864
858c9f6c
JS		 2865 spin_lock_irq(shost->host_lock);
2866
51ef4c26 2867 if (vport->load_flag & FC_UNLOADING) {
858c9f6c
JS		 2868 stat = 1;
2869 goto finished;
2870 }
2e0fef85
JS		 2871 if (time >= 30 * HZ) {
2872 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011
JS		 2873 "0461 Scanning longer than 30 "
2874 "seconds. Continuing initialization\n");
858c9f6c 2875 stat = 1;
47a8617c 2876 goto finished;
2e0fef85
JS		 2877 }
2878 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2879 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011
JS		 2880 "0465 Link down longer than 15 "
2881 "seconds. Continuing initialization\n");
858c9f6c 2882 stat = 1;
47a8617c 2883 goto finished;
2e0fef85 2884 }
47a8617c 2885
2e0fef85 2886 if (vport->port_state != LPFC_VPORT_READY)
858c9f6c 2887 goto finished;
2e0fef85 2888 if (vport->num_disc_nodes || vport->fc_prli_sent)
858c9f6c 2889 goto finished;
2e0fef85 2890 if (vport->fc_map_cnt == 0 && time < 2 * HZ)
858c9f6c 2891 goto finished;
2e0fef85 2892 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
858c9f6c
JS		 2893 goto finished;
2894
2895 stat = 1;
47a8617c
JS		 2896
2897finished:
858c9f6c
JS		 2898 spin_unlock_irq(shost->host_lock);
2899 return stat;
92d7f7b0 2900}
47a8617c 2901
e59058c4 2902/**
3621a710 2903 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
e59058c4
JS		 2904 * @shost: pointer to SCSI host data structure.
2905 *
2906 * This routine initializes a given SCSI host attributes on a FC port. The
2907 * SCSI host can be either on top of a physical port or a virtual port.
2908 **/
92d7f7b0
JS		 2909void lpfc_host_attrib_init(struct Scsi_Host *shost)
2910{
2911 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2912 struct lpfc_hba *phba = vport->phba;
47a8617c 2913 /*
2e0fef85 2914 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
47a8617c
JS		 2915 */
2916
2e0fef85
JS		 2917 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2918 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
47a8617c
JS		 2919 fc_host_supported_classes(shost) = FC_COS_CLASS3;
2920
2921 memset(fc_host_supported_fc4s(shost), 0,
2e0fef85 2922 sizeof(fc_host_supported_fc4s(shost)));
47a8617c
JS		 2923 fc_host_supported_fc4s(shost)[2] = 1;
2924 fc_host_supported_fc4s(shost)[7] = 1;
2925
92d7f7b0
JS		 2926 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2927 sizeof fc_host_symbolic_name(shost));
47a8617c
JS		 2928
2929 fc_host_supported_speeds(shost) = 0;
2930 if (phba->lmt & LMT_10Gb)
2931 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
a8adb832
JS		 2932 if (phba->lmt & LMT_8Gb)
2933 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
47a8617c
JS		 2934 if (phba->lmt & LMT_4Gb)
2935 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2936 if (phba->lmt & LMT_2Gb)
2937 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2938 if (phba->lmt & LMT_1Gb)
2939 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2940
2941 fc_host_maxframe_size(shost) =
2e0fef85
JS		 2942 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2943 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
47a8617c 2944
0af5d708
MC		 2945 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
2946
47a8617c
JS		 2947 /* This value is also unchanging */
2948 memset(fc_host_active_fc4s(shost), 0,
2e0fef85 2949 sizeof(fc_host_active_fc4s(shost)));
47a8617c
JS		 2950 fc_host_active_fc4s(shost)[2] = 1;
2951 fc_host_active_fc4s(shost)[7] = 1;
2952
92d7f7b0 2953 fc_host_max_npiv_vports(shost) = phba->max_vpi;
47a8617c 2954 spin_lock_irq(shost->host_lock);
51ef4c26 2955 vport->load_flag &= ~FC_LOADING;
47a8617c 2956 spin_unlock_irq(shost->host_lock);
47a8617c 2957}
dea3101e 2958
e59058c4 2959/**
da0436e9 2960 * lpfc_stop_port_s3 - Stop SLI3 device port
e59058c4
JS		 2961 * @phba: pointer to lpfc hba data structure.
2962 *
da0436e9
JS		 2963 * This routine is invoked to stop an SLI3 device port, it stops the device
2964 * from generating interrupts and stops the device driver's timers for the
2965 * device.
e59058c4 2966 **/
da0436e9
JS		 2967static void
2968lpfc_stop_port_s3(struct lpfc_hba *phba)
db2378e0 2969{
da0436e9
JS		 2970 /* Clear all interrupt enable conditions */
2971 writel(0, phba->HCregaddr);
2972 readl(phba->HCregaddr); /* flush */
2973 /* Clear all pending interrupts */
2974 writel(0xffffffff, phba->HAregaddr);
2975 readl(phba->HAregaddr); /* flush */
db2378e0 2976
da0436e9
JS		 2977 /* Reset some HBA SLI setup states */
2978 lpfc_stop_hba_timers(phba);
2979 phba->pport->work_port_events = 0;
2980}
db2378e0 2981
da0436e9
JS		 2982/**
2983 * lpfc_stop_port_s4 - Stop SLI4 device port
2984 * @phba: pointer to lpfc hba data structure.
2985 *
2986 * This routine is invoked to stop an SLI4 device port, it stops the device
2987 * from generating interrupts and stops the device driver's timers for the
2988 * device.
2989 **/
2990static void
2991lpfc_stop_port_s4(struct lpfc_hba *phba)
2992{
2993 /* Reset some HBA SLI4 setup states */
2994 lpfc_stop_hba_timers(phba);
2995 phba->pport->work_port_events = 0;
2996 phba->sli4_hba.intr_enable = 0;
da0436e9 2997}
9399627f 2998
da0436e9
JS		 2999/**
3000 * lpfc_stop_port - Wrapper function for stopping hba port
3001 * @phba: Pointer to HBA context object.
3002 *
3003 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3004 * the API jump table function pointer from the lpfc_hba struct.
3005 **/
3006void
3007lpfc_stop_port(struct lpfc_hba *phba)
3008{
3009 phba->lpfc_stop_port(phba);
3010}
db2378e0 3011
ecfd03c6
JS		 3012/**
3013 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3014 * @phba: Pointer to hba for which this call is being executed.
3015 *
3016 * This routine starts the timer waiting for the FCF rediscovery to complete.
3017 **/
3018void
3019lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3020{
3021 unsigned long fcf_redisc_wait_tmo =
3022 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3023 /* Start fcf rediscovery wait period timer */
3024 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3025 spin_lock_irq(&phba->hbalock);
3026 /* Allow action to new fcf asynchronous event */
3027 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3028 /* Mark the FCF rediscovery pending state */
3029 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3030 spin_unlock_irq(&phba->hbalock);
3031}
3032
3033/**
3034 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3035 * @ptr: Map to lpfc_hba data structure pointer.
3036 *
3037 * This routine is invoked when waiting for FCF table rediscover has been
3038 * timed out. If new FCF record(s) has (have) been discovered during the
3039 * wait period, a new FCF event shall be added to the FCOE async event
3040 * list, and then worker thread shall be waked up for processing from the
3041 * worker thread context.
3042 **/
3043void
3044lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3045{
3046 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3047
3048 /* Don't send FCF rediscovery event if timer cancelled */
3049 spin_lock_irq(&phba->hbalock);
3050 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3051 spin_unlock_irq(&phba->hbalock);
3052 return;
3053 }
3054 /* Clear FCF rediscovery timer pending flag */
3055 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3056 /* FCF rediscovery event to worker thread */
3057 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3058 spin_unlock_irq(&phba->hbalock);
0c9ab6f5 3059 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
a93ff37a 3060 "2776 FCF rediscover quiescent timer expired\n");
ecfd03c6
JS		 3061 /* wake up worker thread */
3062 lpfc_worker_wake_up(phba);
3063}
3064
e59058c4 3065/**
da0436e9 3066 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
e59058c4 3067 * @phba: pointer to lpfc hba data structure.
da0436e9 3068 * @acqe_link: pointer to the async link completion queue entry.
e59058c4 3069 *
da0436e9
JS		 3070 * This routine is to parse the SLI4 link-attention link fault code and
3071 * translate it into the base driver's read link attention mailbox command
3072 * status.
3073 *
3074 * Return: Link-attention status in terms of base driver's coding.
e59058c4 3075 **/
da0436e9
JS		 3076static uint16_t
3077lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3078 struct lpfc_acqe_link *acqe_link)
db2378e0 3079{
da0436e9 3080 uint16_t latt_fault;
9399627f 3081
da0436e9
JS		 3082 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3083 case LPFC_ASYNC_LINK_FAULT_NONE:
3084 case LPFC_ASYNC_LINK_FAULT_LOCAL:
3085 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3086 latt_fault = 0;
3087 break;
3088 default:
3089 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3090 "0398 Invalid link fault code: x%x\n",
3091 bf_get(lpfc_acqe_link_fault, acqe_link));
3092 latt_fault = MBXERR_ERROR;
3093 break;
3094 }
3095 return latt_fault;
db2378e0
JS		 3096}
3097
5b75da2f 3098/**
da0436e9 3099 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
5b75da2f 3100 * @phba: pointer to lpfc hba data structure.
da0436e9 3101 * @acqe_link: pointer to the async link completion queue entry.
5b75da2f 3102 *
da0436e9
JS		 3103 * This routine is to parse the SLI4 link attention type and translate it
3104 * into the base driver's link attention type coding.
5b75da2f 3105 *
da0436e9
JS		 3106 * Return: Link attention type in terms of base driver's coding.
3107 **/
3108static uint8_t
3109lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3110 struct lpfc_acqe_link *acqe_link)
5b75da2f 3111{
da0436e9 3112 uint8_t att_type;
5b75da2f 3113
da0436e9
JS		 3114 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3115 case LPFC_ASYNC_LINK_STATUS_DOWN:
3116 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
76a95d75 3117 att_type = LPFC_ATT_LINK_DOWN;
da0436e9
JS		 3118 break;
3119 case LPFC_ASYNC_LINK_STATUS_UP:
3120 /* Ignore physical link up events - wait for logical link up */
76a95d75 3121 att_type = LPFC_ATT_RESERVED;
da0436e9
JS		 3122 break;
3123 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
76a95d75 3124 att_type = LPFC_ATT_LINK_UP;
da0436e9
JS		 3125 break;
3126 default:
3127 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3128 "0399 Invalid link attention type: x%x\n",
3129 bf_get(lpfc_acqe_link_status, acqe_link));
76a95d75 3130 att_type = LPFC_ATT_RESERVED;
da0436e9 3131 break;
5b75da2f 3132 }
da0436e9 3133 return att_type;
5b75da2f
JS		 3134}
3135
3136/**
da0436e9 3137 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
5b75da2f 3138 * @phba: pointer to lpfc hba data structure.
da0436e9 3139 * @acqe_link: pointer to the async link completion queue entry.
5b75da2f 3140 *
da0436e9
JS		 3141 * This routine is to parse the SLI4 link-attention link speed and translate
3142 * it into the base driver's link-attention link speed coding.
3143 *
3144 * Return: Link-attention link speed in terms of base driver's coding.
3145 **/
3146static uint8_t
3147lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3148 struct lpfc_acqe_link *acqe_link)
5b75da2f 3149{
da0436e9
JS		 3150 uint8_t link_speed;
3151
3152 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3153 case LPFC_ASYNC_LINK_SPEED_ZERO:
da0436e9 3154 case LPFC_ASYNC_LINK_SPEED_10MBPS:
da0436e9 3155 case LPFC_ASYNC_LINK_SPEED_100MBPS:
76a95d75 3156 link_speed = LPFC_LINK_SPEED_UNKNOWN;
da0436e9
JS		 3157 break;
3158 case LPFC_ASYNC_LINK_SPEED_1GBPS:
76a95d75 3159 link_speed = LPFC_LINK_SPEED_1GHZ;
da0436e9
JS		 3160 break;
3161 case LPFC_ASYNC_LINK_SPEED_10GBPS:
76a95d75 3162 link_speed = LPFC_LINK_SPEED_10GHZ;
da0436e9
JS		 3163 break;
3164 default:
3165 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3166 "0483 Invalid link-attention link speed: x%x\n",
3167 bf_get(lpfc_acqe_link_speed, acqe_link));
76a95d75 3168 link_speed = LPFC_LINK_SPEED_UNKNOWN;
da0436e9
JS		 3169 break;
3170 }
3171 return link_speed;
3172}
3173
3174/**
70f3c073 3175 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
da0436e9
JS		 3176 * @phba: pointer to lpfc hba data structure.
3177 * @acqe_link: pointer to the async link completion queue entry.
3178 *
70f3c073 3179 * This routine is to handle the SLI4 asynchronous FCoE link event.
da0436e9
JS		 3180 **/
3181static void
3182lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3183 struct lpfc_acqe_link *acqe_link)
3184{
3185 struct lpfc_dmabuf *mp;
3186 LPFC_MBOXQ_t *pmb;
3187 MAILBOX_t *mb;
76a95d75 3188 struct lpfc_mbx_read_top *la;
da0436e9 3189 uint8_t att_type;
76a95d75 3190 int rc;
da0436e9
JS		 3191
3192 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
76a95d75 3193 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
da0436e9 3194 return;
32b9793f 3195 phba->fcoe_eventtag = acqe_link->event_tag;
da0436e9
JS		 3196 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3197 if (!pmb) {
3198 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3199 "0395 The mboxq allocation failed\n");
3200 return;
3201 }
3202 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3203 if (!mp) {
3204 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3205 "0396 The lpfc_dmabuf allocation failed\n");
3206 goto out_free_pmb;
3207 }
3208 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3209 if (!mp->virt) {
3210 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3211 "0397 The mbuf allocation failed\n");
3212 goto out_free_dmabuf;
3213 }
3214
3215 /* Cleanup any outstanding ELS commands */
3216 lpfc_els_flush_all_cmd(phba);
3217
3218 /* Block ELS IOCBs until we have done process link event */
3219 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3220
3221 /* Update link event statistics */
3222 phba->sli.slistat.link_event++;
3223
76a95d75
JS		 3224 /* Create lpfc_handle_latt mailbox command from link ACQE */
3225 lpfc_read_topology(phba, pmb, mp);
3226 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
da0436e9
JS		 3227 pmb->vport = phba->pport;
3228
da0436e9
JS		 3229 /* Keep the link status for extra SLI4 state machine reference */
3230 phba->sli4_hba.link_state.speed =
3231 bf_get(lpfc_acqe_link_speed, acqe_link);
3232 phba->sli4_hba.link_state.duplex =
3233 bf_get(lpfc_acqe_link_duplex, acqe_link);
3234 phba->sli4_hba.link_state.status =
3235 bf_get(lpfc_acqe_link_status, acqe_link);
70f3c073
JS		 3236 phba->sli4_hba.link_state.type =
3237 bf_get(lpfc_acqe_link_type, acqe_link);
3238 phba->sli4_hba.link_state.number =
3239 bf_get(lpfc_acqe_link_number, acqe_link);
da0436e9
JS		 3240 phba->sli4_hba.link_state.fault =
3241 bf_get(lpfc_acqe_link_fault, acqe_link);
65467b6b 3242 phba->sli4_hba.link_state.logical_speed =
70f3c073
JS		 3243 bf_get(lpfc_acqe_logical_link_speed, acqe_link);
3244 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
c31098ce
JS		 3245 "2900 Async FC/FCoE Link event - Speed:%dGBit "
3246 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3247 "Logical speed:%dMbps Fault:%d\n",
70f3c073
JS		 3248 phba->sli4_hba.link_state.speed,
3249 phba->sli4_hba.link_state.topology,
3250 phba->sli4_hba.link_state.status,
3251 phba->sli4_hba.link_state.type,
3252 phba->sli4_hba.link_state.number,
3253 phba->sli4_hba.link_state.logical_speed * 10,
3254 phba->sli4_hba.link_state.fault);
76a95d75
JS		 3255 /*
3256 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3257 * topology info. Note: Optional for non FC-AL ports.
3258 */
3259 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3260 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3261 if (rc == MBX_NOT_FINISHED)
3262 goto out_free_dmabuf;
3263 return;
3264 }
3265 /*
3266 * For FCoE Mode: fill in all the topology information we need and call
3267 * the READ_TOPOLOGY completion routine to continue without actually
3268 * sending the READ_TOPOLOGY mailbox command to the port.
3269 */
3270 /* Parse and translate status field */
3271 mb = &pmb->u.mb;
3272 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3273
3274 /* Parse and translate link attention fields */
3275 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3276 la->eventTag = acqe_link->event_tag;
3277 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3278 bf_set(lpfc_mbx_read_top_link_spd, la,
3279 lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3280
3281 /* Fake the the following irrelvant fields */
3282 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3283 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3284 bf_set(lpfc_mbx_read_top_il, la, 0);
3285 bf_set(lpfc_mbx_read_top_pb, la, 0);
3286 bf_set(lpfc_mbx_read_top_fa, la, 0);
3287 bf_set(lpfc_mbx_read_top_mm, la, 0);
da0436e9
JS		 3288
3289 /* Invoke the lpfc_handle_latt mailbox command callback function */
76a95d75 3290 lpfc_mbx_cmpl_read_topology(phba, pmb);
da0436e9 3291
5b75da2f 3292 return;
da0436e9
JS		 3293
3294out_free_dmabuf:
3295 kfree(mp);
3296out_free_pmb:
3297 mempool_free(pmb, phba->mbox_mem_pool);
3298}
3299
70f3c073
JS		 3300/**
3301 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3302 * @phba: pointer to lpfc hba data structure.
3303 * @acqe_fc: pointer to the async fc completion queue entry.
3304 *
3305 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3306 * that the event was received and then issue a read_topology mailbox command so
3307 * that the rest of the driver will treat it the same as SLI3.
3308 **/
3309static void
3310lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3311{
3312 struct lpfc_dmabuf *mp;
3313 LPFC_MBOXQ_t *pmb;
3314 int rc;
3315
3316 if (bf_get(lpfc_trailer_type, acqe_fc) !=
3317 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3318 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3319 "2895 Non FC link Event detected.(%d)\n",
3320 bf_get(lpfc_trailer_type, acqe_fc));
3321 return;
3322 }
3323 /* Keep the link status for extra SLI4 state machine reference */
3324 phba->sli4_hba.link_state.speed =
3325 bf_get(lpfc_acqe_fc_la_speed, acqe_fc);
3326 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3327 phba->sli4_hba.link_state.topology =
3328 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3329 phba->sli4_hba.link_state.status =
3330 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3331 phba->sli4_hba.link_state.type =
3332 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3333 phba->sli4_hba.link_state.number =
3334 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3335 phba->sli4_hba.link_state.fault =
3336 bf_get(lpfc_acqe_link_fault, acqe_fc);
3337 phba->sli4_hba.link_state.logical_speed =
3338 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
3339 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3340 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3341 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3342 "%dMbps Fault:%d\n",
3343 phba->sli4_hba.link_state.speed,
3344 phba->sli4_hba.link_state.topology,
3345 phba->sli4_hba.link_state.status,
3346 phba->sli4_hba.link_state.type,
3347 phba->sli4_hba.link_state.number,
3348 phba->sli4_hba.link_state.logical_speed * 10,
3349 phba->sli4_hba.link_state.fault);
3350 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3351 if (!pmb) {
3352 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3353 "2897 The mboxq allocation failed\n");
3354 return;
3355 }
3356 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3357 if (!mp) {
3358 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3359 "2898 The lpfc_dmabuf allocation failed\n");
3360 goto out_free_pmb;
3361 }
3362 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3363 if (!mp->virt) {
3364 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3365 "2899 The mbuf allocation failed\n");
3366 goto out_free_dmabuf;
3367 }
3368
3369 /* Cleanup any outstanding ELS commands */
3370 lpfc_els_flush_all_cmd(phba);
3371
3372 /* Block ELS IOCBs until we have done process link event */
3373 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3374
3375 /* Update link event statistics */
3376 phba->sli.slistat.link_event++;
3377
3378 /* Create lpfc_handle_latt mailbox command from link ACQE */
3379 lpfc_read_topology(phba, pmb, mp);
3380 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3381 pmb->vport = phba->pport;
3382
3383 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3384 if (rc == MBX_NOT_FINISHED)
3385 goto out_free_dmabuf;
3386 return;
3387
3388out_free_dmabuf:
3389 kfree(mp);
3390out_free_pmb:
3391 mempool_free(pmb, phba->mbox_mem_pool);
3392}
3393
3394/**
3395 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3396 * @phba: pointer to lpfc hba data structure.
3397 * @acqe_fc: pointer to the async SLI completion queue entry.
3398 *
3399 * This routine is to handle the SLI4 asynchronous SLI events.
3400 **/
3401static void
3402lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3403{
3404 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3405 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3406 "x%08x SLI Event Type:%d",
3407 acqe_sli->event_data1, acqe_sli->event_data2,
3408 bf_get(lpfc_trailer_type, acqe_sli));
3409 return;
3410}
3411
fc2b989b
JS		 3412/**
3413 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3414 * @vport: pointer to vport data structure.
3415 *
3416 * This routine is to perform Clear Virtual Link (CVL) on a vport in
3417 * response to a CVL event.
3418 *
3419 * Return the pointer to the ndlp with the vport if successful, otherwise
3420 * return NULL.
3421 **/
3422static struct lpfc_nodelist *
3423lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3424{
3425 struct lpfc_nodelist *ndlp;
3426 struct Scsi_Host *shost;
3427 struct lpfc_hba *phba;
3428
3429 if (!vport)
3430 return NULL;
fc2b989b
JS		 3431 phba = vport->phba;
3432 if (!phba)
3433 return NULL;
78730cfe
JS		 3434 ndlp = lpfc_findnode_did(vport, Fabric_DID);
3435 if (!ndlp) {
3436 /* Cannot find existing Fabric ndlp, so allocate a new one */
3437 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3438 if (!ndlp)
3439 return 0;
3440 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3441 /* Set the node type */
3442 ndlp->nlp_type |= NLP_FABRIC;
3443 /* Put ndlp onto node list */
3444 lpfc_enqueue_node(vport, ndlp);
3445 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3446 /* re-setup ndlp without removing from node list */
3447 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3448 if (!ndlp)
3449 return 0;
3450 }
63e801ce
JS		 3451 if ((phba->pport->port_state < LPFC_FLOGI) &&
3452 (phba->pport->port_state != LPFC_VPORT_FAILED))
fc2b989b
JS		 3453 return NULL;
3454 /* If virtual link is not yet instantiated ignore CVL */
63e801ce
JS		 3455 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
3456 && (vport->port_state != LPFC_VPORT_FAILED))
fc2b989b
JS		 3457 return NULL;
3458 shost = lpfc_shost_from_vport(vport);
3459 if (!shost)
3460 return NULL;
3461 lpfc_linkdown_port(vport);
3462 lpfc_cleanup_pending_mbox(vport);
3463 spin_lock_irq(shost->host_lock);
3464 vport->fc_flag |= FC_VPORT_CVL_RCVD;
3465 spin_unlock_irq(shost->host_lock);
3466
3467 return ndlp;
3468}
3469
3470/**
3471 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3472 * @vport: pointer to lpfc hba data structure.
3473 *
3474 * This routine is to perform Clear Virtual Link (CVL) on all vports in
3475 * response to a FCF dead event.
3476 **/
3477static void
3478lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3479{
3480 struct lpfc_vport **vports;
3481 int i;
3482
3483 vports = lpfc_create_vport_work_array(phba);
3484 if (vports)
3485 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3486 lpfc_sli4_perform_vport_cvl(vports[i]);
3487 lpfc_destroy_vport_work_array(phba, vports);
3488}
3489
da0436e9 3490/**
76a95d75 3491 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
da0436e9
JS		 3492 * @phba: pointer to lpfc hba data structure.
3493 * @acqe_link: pointer to the async fcoe completion queue entry.
3494 *
3495 * This routine is to handle the SLI4 asynchronous fcoe event.
3496 **/
3497static void
76a95d75 3498lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
70f3c073 3499 struct lpfc_acqe_fip *acqe_fip)
da0436e9 3500{
70f3c073 3501 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
da0436e9 3502 int rc;
6669f9bb
JS		 3503 struct lpfc_vport *vport;
3504 struct lpfc_nodelist *ndlp;
3505 struct Scsi_Host *shost;
695a814e
JS		 3506 int active_vlink_present;
3507 struct lpfc_vport **vports;
3508 int i;
da0436e9 3509
70f3c073
JS		 3510 phba->fc_eventTag = acqe_fip->event_tag;
3511 phba->fcoe_eventtag = acqe_fip->event_tag;
da0436e9 3512 switch (event_type) {
70f3c073
JS		 3513 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
3514 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
3515 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
999d813f
JS		 3516 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3517 LOG_DISCOVERY,
a93ff37a
JS		 3518 "2546 New FCF event, evt_tag:x%x, "
3519 "index:x%x\n",
70f3c073
JS		 3520 acqe_fip->event_tag,
3521 acqe_fip->index);
999d813f
JS		 3522 else
3523 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3524 LOG_DISCOVERY,
a93ff37a
JS		 3525 "2788 FCF param modified event, "
3526 "evt_tag:x%x, index:x%x\n",
70f3c073
JS		 3527 acqe_fip->event_tag,
3528 acqe_fip->index);
38b92ef8 3529 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
0c9ab6f5
JS		 3530 /*
3531 * During period of FCF discovery, read the FCF
3532 * table record indexed by the event to update
a93ff37a 3533 * FCF roundrobin failover eligible FCF bmask.
0c9ab6f5
JS		 3534 */
3535 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3536 LOG_DISCOVERY,
a93ff37a
JS		 3537 "2779 Read FCF (x%x) for updating "
3538 "roundrobin FCF failover bmask\n",
70f3c073
JS		 3539 acqe_fip->index);
3540 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
0c9ab6f5 3541 }
38b92ef8
JS		 3542
3543 /* If the FCF discovery is in progress, do nothing. */
3804dc84 3544 spin_lock_irq(&phba->hbalock);
a93ff37a 3545 if (phba->hba_flag & FCF_TS_INPROG) {
38b92ef8
JS		 3546 spin_unlock_irq(&phba->hbalock);
3547 break;
3548 }
3549 /* If fast FCF failover rescan event is pending, do nothing */
3550 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3551 spin_unlock_irq(&phba->hbalock);
3552 break;
3553 }
3554
3555 /* If the FCF has been in discovered state, do nothing. */
3804dc84
JS		 3556 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
3557 spin_unlock_irq(&phba->hbalock);
3558 break;
3559 }
3560 spin_unlock_irq(&phba->hbalock);
38b92ef8 3561
0c9ab6f5
JS		 3562 /* Otherwise, scan the entire FCF table and re-discover SAN */
3563 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
a93ff37a
JS		 3564 "2770 Start FCF table scan per async FCF "
3565 "event, evt_tag:x%x, index:x%x\n",
70f3c073 3566 acqe_fip->event_tag, acqe_fip->index);
0c9ab6f5
JS		 3567 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3568 LPFC_FCOE_FCF_GET_FIRST);
da0436e9 3569 if (rc)
0c9ab6f5
JS		 3570 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3571 "2547 Issue FCF scan read FCF mailbox "
a93ff37a 3572 "command failed (x%x)\n", rc);
da0436e9
JS		 3573 break;
3574
70f3c073 3575 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
da0436e9 3576 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
e4e74273 3577 "2548 FCF Table full count 0x%x tag 0x%x\n",
70f3c073
JS		 3578 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
3579 acqe_fip->event_tag);
da0436e9
JS		 3580 break;
3581
70f3c073 3582 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
0c9ab6f5 3583 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
a93ff37a 3584 "2549 FCF (x%x) disconnected from network, "
70f3c073 3585 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
38b92ef8
JS		 3586 /*
3587 * If we are in the middle of FCF failover process, clear
3588 * the corresponding FCF bit in the roundrobin bitmap.
da0436e9 3589 */
fc2b989b 3590 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3591 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
fc2b989b 3592 spin_unlock_irq(&phba->hbalock);
0c9ab6f5 3593 /* Update FLOGI FCF failover eligible FCF bmask */
70f3c073 3594 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
fc2b989b
JS		 3595 break;
3596 }
38b92ef8
JS		 3597 spin_unlock_irq(&phba->hbalock);
3598
3599 /* If the event is not for currently used fcf do nothing */
70f3c073 3600 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
38b92ef8
JS		 3601 break;
3602
3603 /*
3604 * Otherwise, request the port to rediscover the entire FCF
3605 * table for a fast recovery from case that the current FCF
3606 * is no longer valid as we are not in the middle of FCF
3607 * failover process already.
3608 */
3609 spin_lock_irq(&phba->hbalock);
fc2b989b 3610 /* Mark the fast failover process in progress */
0c9ab6f5 3611 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
fc2b989b 3612 spin_unlock_irq(&phba->hbalock);
38b92ef8 3613
0c9ab6f5
JS		 3614 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3615 "2771 Start FCF fast failover process due to "
3616 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
70f3c073 3617 "\n", acqe_fip->event_tag, acqe_fip->index);
fc2b989b
JS		 3618 rc = lpfc_sli4_redisc_fcf_table(phba);
3619 if (rc) {
0c9ab6f5
JS		 3620 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3621 LOG_DISCOVERY,
3622 "2772 Issue FCF rediscover mabilbox "
3623 "command failed, fail through to FCF "
3624 "dead event\n");
fc2b989b 3625 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3626 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
fc2b989b
JS		 3627 spin_unlock_irq(&phba->hbalock);
3628 /*
3629 * Last resort will fail over by treating this
3630 * as a link down to FCF registration.
3631 */
3632 lpfc_sli4_fcf_dead_failthrough(phba);
38b92ef8
JS		 3633 } else {
3634 /* Reset FCF roundrobin bmask for new discovery */
3635 memset(phba->fcf.fcf_rr_bmask, 0,
3636 sizeof(*phba->fcf.fcf_rr_bmask));
3637 /*
3638 * Handling fast FCF failover to a DEAD FCF event is
3639 * considered equalivant to receiving CVL to all vports.
fc2b989b
JS		 3640 */
3641 lpfc_sli4_perform_all_vport_cvl(phba);
38b92ef8 3642 }
da0436e9 3643 break;
70f3c073 3644 case LPFC_FIP_EVENT_TYPE_CVL:
0c9ab6f5 3645 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
6669f9bb 3646 "2718 Clear Virtual Link Received for VPI 0x%x"
70f3c073 3647 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
6d368e53 3648
6669f9bb 3649 vport = lpfc_find_vport_by_vpid(phba,
70f3c073 3650 acqe_fip->index - phba->vpi_base);
fc2b989b 3651 ndlp = lpfc_sli4_perform_vport_cvl(vport);
6669f9bb
JS		 3652 if (!ndlp)
3653 break;
695a814e
JS		 3654 active_vlink_present = 0;
3655
3656 vports = lpfc_create_vport_work_array(phba);
3657 if (vports) {
3658 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3659 i++) {
3660 if ((!(vports[i]->fc_flag &
3661 FC_VPORT_CVL_RCVD)) &&
3662 (vports[i]->port_state > LPFC_FDISC)) {
3663 active_vlink_present = 1;
3664 break;
3665 }
3666 }
3667 lpfc_destroy_vport_work_array(phba, vports);
3668 }
3669
3670 if (active_vlink_present) {
3671 /*
3672 * If there are other active VLinks present,
3673 * re-instantiate the Vlink using FDISC.
3674 */
6669f9bb 3675 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
fc2b989b 3676 shost = lpfc_shost_from_vport(vport);
6669f9bb
JS		 3677 spin_lock_irq(shost->host_lock);
3678 ndlp->nlp_flag |= NLP_DELAY_TMO;
3679 spin_unlock_irq(shost->host_lock);
695a814e
JS		 3680 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3681 vport->port_state = LPFC_FDISC;
3682 } else {
ecfd03c6
JS		 3683 /*
3684 * Otherwise, we request port to rediscover
3685 * the entire FCF table for a fast recovery
3686 * from possible case that the current FCF
0c9ab6f5
JS		 3687 * is no longer valid if we are not already
3688 * in the FCF failover process.
ecfd03c6 3689 */
fc2b989b 3690 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3691 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
fc2b989b
JS		 3692 spin_unlock_irq(&phba->hbalock);
3693 break;
3694 }
3695 /* Mark the fast failover process in progress */
0c9ab6f5 3696 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
fc2b989b 3697 spin_unlock_irq(&phba->hbalock);
0c9ab6f5
JS		 3698 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3699 LOG_DISCOVERY,
a93ff37a 3700 "2773 Start FCF failover per CVL, "
70f3c073 3701 "evt_tag:x%x\n", acqe_fip->event_tag);
ecfd03c6 3702 rc = lpfc_sli4_redisc_fcf_table(phba);
fc2b989b 3703 if (rc) {
0c9ab6f5
JS		 3704 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3705 LOG_DISCOVERY,
3706 "2774 Issue FCF rediscover "
3707 "mabilbox command failed, "
3708 "through to CVL event\n");
fc2b989b 3709 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3710 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
fc2b989b 3711 spin_unlock_irq(&phba->hbalock);
ecfd03c6
JS		 3712 /*
3713 * Last resort will be re-try on the
3714 * the current registered FCF entry.
3715 */
3716 lpfc_retry_pport_discovery(phba);
38b92ef8
JS		 3717 } else
3718 /*
3719 * Reset FCF roundrobin bmask for new
3720 * discovery.
3721 */
3722 memset(phba->fcf.fcf_rr_bmask, 0,
3723 sizeof(*phba->fcf.fcf_rr_bmask));
6669f9bb
JS		 3724 }
3725 break;
da0436e9
JS		 3726 default:
3727 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3728 "0288 Unknown FCoE event type 0x%x event tag "
70f3c073 3729 "0x%x\n", event_type, acqe_fip->event_tag);
da0436e9
JS		 3730 break;
3731 }
3732}
3733
3734/**
3735 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3736 * @phba: pointer to lpfc hba data structure.
3737 * @acqe_link: pointer to the async dcbx completion queue entry.
3738 *
3739 * This routine is to handle the SLI4 asynchronous dcbx event.
3740 **/
3741static void
3742lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3743 struct lpfc_acqe_dcbx *acqe_dcbx)
3744{
4d9ab994 3745 phba->fc_eventTag = acqe_dcbx->event_tag;
da0436e9
JS		 3746 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3747 "0290 The SLI4 DCBX asynchronous event is not "
3748 "handled yet\n");
3749}
3750
b19a061a
JS		 3751/**
3752 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3753 * @phba: pointer to lpfc hba data structure.
3754 * @acqe_link: pointer to the async grp5 completion queue entry.
3755 *
3756 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3757 * is an asynchronous notified of a logical link speed change. The Port
3758 * reports the logical link speed in units of 10Mbps.
3759 **/
3760static void
3761lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
3762 struct lpfc_acqe_grp5 *acqe_grp5)
3763{
3764 uint16_t prev_ll_spd;
3765
3766 phba->fc_eventTag = acqe_grp5->event_tag;
3767 phba->fcoe_eventtag = acqe_grp5->event_tag;
3768 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
3769 phba->sli4_hba.link_state.logical_speed =
3770 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
3771 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3772 "2789 GRP5 Async Event: Updating logical link speed "
3773 "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
3774 (phba->sli4_hba.link_state.logical_speed*10));
3775}
3776
da0436e9
JS		 3777/**
3778 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3779 * @phba: pointer to lpfc hba data structure.
3780 *
3781 * This routine is invoked by the worker thread to process all the pending
3782 * SLI4 asynchronous events.
3783 **/
3784void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3785{
3786 struct lpfc_cq_event *cq_event;
3787
3788 /* First, declare the async event has been handled */
3789 spin_lock_irq(&phba->hbalock);
3790 phba->hba_flag &= ~ASYNC_EVENT;
3791 spin_unlock_irq(&phba->hbalock);
3792 /* Now, handle all the async events */
3793 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3794 /* Get the first event from the head of the event queue */
3795 spin_lock_irq(&phba->hbalock);
3796 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3797 cq_event, struct lpfc_cq_event, list);
3798 spin_unlock_irq(&phba->hbalock);
3799 /* Process the asynchronous event */
3800 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3801 case LPFC_TRAILER_CODE_LINK:
3802 lpfc_sli4_async_link_evt(phba,
3803 &cq_event->cqe.acqe_link);
3804 break;
3805 case LPFC_TRAILER_CODE_FCOE:
70f3c073 3806 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
da0436e9
JS		 3807 break;
3808 case LPFC_TRAILER_CODE_DCBX:
3809 lpfc_sli4_async_dcbx_evt(phba,
3810 &cq_event->cqe.acqe_dcbx);
3811 break;
b19a061a
JS		 3812 case LPFC_TRAILER_CODE_GRP5:
3813 lpfc_sli4_async_grp5_evt(phba,
3814 &cq_event->cqe.acqe_grp5);
3815 break;
70f3c073
JS		 3816 case LPFC_TRAILER_CODE_FC:
3817 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
3818 break;
3819 case LPFC_TRAILER_CODE_SLI:
3820 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
3821 break;
da0436e9
JS		 3822 default:
3823 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3824 "1804 Invalid asynchrous event code: "
3825 "x%x\n", bf_get(lpfc_trailer_code,
3826 &cq_event->cqe.mcqe_cmpl));
3827 break;
3828 }
3829 /* Free the completion event processed to the free pool */
3830 lpfc_sli4_cq_event_release(phba, cq_event);
3831 }
3832}
3833
ecfd03c6
JS		 3834/**
3835 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3836 * @phba: pointer to lpfc hba data structure.
3837 *
3838 * This routine is invoked by the worker thread to process FCF table
3839 * rediscovery pending completion event.
3840 **/
3841void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3842{
3843 int rc;
3844
3845 spin_lock_irq(&phba->hbalock);
3846 /* Clear FCF rediscovery timeout event */
3847 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3848 /* Clear driver fast failover FCF record flag */
3849 phba->fcf.failover_rec.flag = 0;
3850 /* Set state for FCF fast failover */
3851 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3852 spin_unlock_irq(&phba->hbalock);
3853
3854 /* Scan FCF table from the first entry to re-discover SAN */
0c9ab6f5 3855 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
a93ff37a 3856 "2777 Start post-quiescent FCF table scan\n");
0c9ab6f5 3857 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
ecfd03c6 3858 if (rc)
0c9ab6f5
JS		 3859 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3860 "2747 Issue FCF scan read FCF mailbox "
3861 "command failed 0x%x\n", rc);
ecfd03c6
JS		 3862}
3863
da0436e9
JS		 3864/**
3865 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3866 * @phba: pointer to lpfc hba data structure.
3867 * @dev_grp: The HBA PCI-Device group number.
3868 *
3869 * This routine is invoked to set up the per HBA PCI-Device group function
3870 * API jump table entries.
3871 *
3872 * Return: 0 if success, otherwise -ENODEV
3873 **/
3874int
3875lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3876{
3877 int rc;
3878
3879 /* Set up lpfc PCI-device group */
3880 phba->pci_dev_grp = dev_grp;
3881
3882 /* The LPFC_PCI_DEV_OC uses SLI4 */
3883 if (dev_grp == LPFC_PCI_DEV_OC)
3884 phba->sli_rev = LPFC_SLI_REV4;
3885
3886 /* Set up device INIT API function jump table */
3887 rc = lpfc_init_api_table_setup(phba, dev_grp);
3888 if (rc)
3889 return -ENODEV;
3890 /* Set up SCSI API function jump table */
3891 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3892 if (rc)
3893 return -ENODEV;
3894 /* Set up SLI API function jump table */
3895 rc = lpfc_sli_api_table_setup(phba, dev_grp);
3896 if (rc)
3897 return -ENODEV;
3898 /* Set up MBOX API function jump table */
3899 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3900 if (rc)
3901 return -ENODEV;
3902
3903 return 0;
5b75da2f
JS		 3904}
3905
3906/**
3621a710 3907 * lpfc_log_intr_mode - Log the active interrupt mode
5b75da2f
JS		 3908 * @phba: pointer to lpfc hba data structure.
3909 * @intr_mode: active interrupt mode adopted.
3910 *
3911 * This routine it invoked to log the currently used active interrupt mode
3912 * to the device.
3772a991
JS		 3913 **/
3914static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5b75da2f
JS		 3915{
3916 switch (intr_mode) {
3917 case 0:
3918 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3919 "0470 Enable INTx interrupt mode.\n");
3920 break;
3921 case 1:
3922 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3923 "0481 Enabled MSI interrupt mode.\n");
3924 break;
3925 case 2:
3926 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3927 "0480 Enabled MSI-X interrupt mode.\n");
3928 break;
3929 default:
3930 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3931 "0482 Illegal interrupt mode.\n");
3932 break;
3933 }
3934 return;
3935}
3936
5b75da2f 3937/**
3772a991 3938 * lpfc_enable_pci_dev - Enable a generic PCI device.
5b75da2f
JS		 3939 * @phba: pointer to lpfc hba data structure.
3940 *
3772a991
JS		 3941 * This routine is invoked to enable the PCI device that is common to all
3942 * PCI devices.
5b75da2f
JS		 3943 *
3944 * Return codes
af901ca1 3945 * 0 - successful
3772a991 3946 * other values - error
5b75da2f 3947 **/
3772a991
JS		 3948static int
3949lpfc_enable_pci_dev(struct lpfc_hba *phba)
5b75da2f 3950{
3772a991
JS		 3951 struct pci_dev *pdev;
3952 int bars;
5b75da2f 3953
3772a991
JS		 3954 /* Obtain PCI device reference */
3955 if (!phba->pcidev)
3956 goto out_error;
3957 else
3958 pdev = phba->pcidev;
3959 /* Select PCI BARs */
3960 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3961 /* Enable PCI device */
3962 if (pci_enable_device_mem(pdev))
3963 goto out_error;
3964 /* Request PCI resource for the device */
3965 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3966 goto out_disable_device;
3967 /* Set up device as PCI master and save state for EEH */
3968 pci_set_master(pdev);
3969 pci_try_set_mwi(pdev);
3970 pci_save_state(pdev);
5b75da2f 3971
0558056c
JS		 3972 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
3973 if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
3974 pdev->needs_freset = 1;
3975
3772a991 3976 return 0;
5b75da2f 3977
3772a991
JS		 3978out_disable_device:
3979 pci_disable_device(pdev);
3980out_error:
3981 return -ENODEV;
5b75da2f
JS		 3982}
3983
3984/**
3772a991 3985 * lpfc_disable_pci_dev - Disable a generic PCI device.
5b75da2f
JS		 3986 * @phba: pointer to lpfc hba data structure.
3987 *
3772a991
JS		 3988 * This routine is invoked to disable the PCI device that is common to all
3989 * PCI devices.
5b75da2f
JS		 3990 **/
3991static void
3772a991 3992lpfc_disable_pci_dev(struct lpfc_hba *phba)
5b75da2f 3993{
3772a991
JS		 3994 struct pci_dev *pdev;
3995 int bars;
5b75da2f 3996
3772a991
JS		 3997 /* Obtain PCI device reference */
3998 if (!phba->pcidev)
3999 return;
4000 else
4001 pdev = phba->pcidev;
4002 /* Select PCI BARs */
4003 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4004 /* Release PCI resource and disable PCI device */
4005 pci_release_selected_regions(pdev, bars);
4006 pci_disable_device(pdev);
4007 /* Null out PCI private reference to driver */
4008 pci_set_drvdata(pdev, NULL);
5b75da2f
JS		 4009
4010 return;
4011}
4012
e59058c4 4013/**
3772a991
JS		 4014 * lpfc_reset_hba - Reset a hba
4015 * @phba: pointer to lpfc hba data structure.
e59058c4 4016 *
3772a991
JS		 4017 * This routine is invoked to reset a hba device. It brings the HBA
4018 * offline, performs a board restart, and then brings the board back
4019 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4020 * on outstanding mailbox commands.
e59058c4 4021 **/
3772a991
JS		 4022void
4023lpfc_reset_hba(struct lpfc_hba *phba)
dea3101e 4024{
3772a991
JS		 4025 /* If resets are disabled then set error state and return. */
4026 if (!phba->cfg_enable_hba_reset) {
4027 phba->link_state = LPFC_HBA_ERROR;
4028 return;
4029 }
4030 lpfc_offline_prep(phba);
4031 lpfc_offline(phba);
4032 lpfc_sli_brdrestart(phba);
4033 lpfc_online(phba);
4034 lpfc_unblock_mgmt_io(phba);
4035}
dea3101e 4036
912e3acd
JS		 4037/**
4038 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4039 * @phba: pointer to lpfc hba data structure.
4040 * @nr_vfn: number of virtual functions to be enabled.
4041 *
4042 * This function enables the PCI SR-IOV virtual functions to a physical
4043 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4044 * enable the number of virtual functions to the physical function. As
4045 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4046 * API call does not considered as an error condition for most of the device.
4047 **/
4048int
4049lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4050{
4051 struct pci_dev *pdev = phba->pcidev;
4052 int rc;
4053
4054 rc = pci_enable_sriov(pdev, nr_vfn);
4055 if (rc) {
4056 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4057 "2806 Failed to enable sriov on this device "
4058 "with vfn number nr_vf:%d, rc:%d\n",
4059 nr_vfn, rc);
4060 } else
4061 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4062 "2807 Successful enable sriov on this device "
4063 "with vfn number nr_vf:%d\n", nr_vfn);
4064 return rc;
4065}
4066
3772a991
JS		 4067/**
4068 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4069 * @phba: pointer to lpfc hba data structure.
4070 *
4071 * This routine is invoked to set up the driver internal resources specific to
4072 * support the SLI-3 HBA device it attached to.
4073 *
4074 * Return codes
af901ca1 4075 * 0 - successful
3772a991
JS		 4076 * other values - error
4077 **/
4078static int
4079lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4080{
4081 struct lpfc_sli *psli;
912e3acd 4082 int rc;
dea3101e 4083
2e0fef85 4084 /*
3772a991 4085 * Initialize timers used by driver
2e0fef85 4086 */
dea3101e 4087
3772a991 4088 /* Heartbeat timer */
858c9f6c
JS		 4089 init_timer(&phba->hb_tmofunc);
4090 phba->hb_tmofunc.function = lpfc_hb_timeout;
4091 phba->hb_tmofunc.data = (unsigned long)phba;
4092
dea3101e 4093 psli = &phba->sli;
3772a991 4094 /* MBOX heartbeat timer */
dea3101e 4095 init_timer(&psli->mbox_tmo);
4096 psli->mbox_tmo.function = lpfc_mbox_timeout;
2e0fef85 4097 psli->mbox_tmo.data = (unsigned long) phba;
3772a991 4098 /* FCP polling mode timer */
875fbdfe
JSEC		 4099 init_timer(&phba->fcp_poll_timer);
4100 phba->fcp_poll_timer.function = lpfc_poll_timeout;
2e0fef85 4101 phba->fcp_poll_timer.data = (unsigned long) phba;
3772a991 4102 /* Fabric block timer */
92d7f7b0
JS		 4103 init_timer(&phba->fabric_block_timer);
4104 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4105 phba->fabric_block_timer.data = (unsigned long) phba;
3772a991 4106 /* EA polling mode timer */
9399627f
JS		 4107 init_timer(&phba->eratt_poll);
4108 phba->eratt_poll.function = lpfc_poll_eratt;
4109 phba->eratt_poll.data = (unsigned long) phba;
dea3101e 4110
3772a991
JS		 4111 /* Host attention work mask setup */
4112 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4113 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
dea3101e 4114
3772a991
JS		 4115 /* Get all the module params for configuring this host */
4116 lpfc_get_cfgparam(phba);
49198b37
JS		 4117 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4118 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4119 /* check for menlo minimum sg count */
4120 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4121 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4122 }
4123
dea3101e 4124 /*
3772a991
JS		 4125 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4126 * used to create the sg_dma_buf_pool must be dynamically calculated.
4127 * 2 segments are added since the IOCB needs a command and response bde.
dea3101e 4128 */
3772a991
JS		 4129 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4130 sizeof(struct fcp_rsp) +
4131 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4132
4133 if (phba->cfg_enable_bg) {
4134 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4135 phba->cfg_sg_dma_buf_size +=
4136 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
901a920f 4137 }
dea3101e 4138
3772a991
JS		 4139 /* Also reinitialize the host templates with new values. */
4140 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4141 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
dea3101e 4142
3772a991
JS		 4143 phba->max_vpi = LPFC_MAX_VPI;
4144 /* This will be set to correct value after config_port mbox */
4145 phba->max_vports = 0;
dea3101e 4146
3772a991
JS		 4147 /*
4148 * Initialize the SLI Layer to run with lpfc HBAs.
4149 */
4150 lpfc_sli_setup(phba);
4151 lpfc_sli_queue_setup(phba);
ed957684 4152
3772a991
JS		 4153 /* Allocate device driver memory */
4154 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4155 return -ENOMEM;
51ef4c26 4156
912e3acd
JS		 4157 /*
4158 * Enable sr-iov virtual functions if supported and configured
4159 * through the module parameter.
4160 */
4161 if (phba->cfg_sriov_nr_virtfn > 0) {
4162 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4163 phba->cfg_sriov_nr_virtfn);
4164 if (rc) {
4165 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4166 "2808 Requested number of SR-IOV "
4167 "virtual functions (%d) is not "
4168 "supported\n",
4169 phba->cfg_sriov_nr_virtfn);
4170 phba->cfg_sriov_nr_virtfn = 0;
4171 }
4172 }
4173
3772a991
JS		 4174 return 0;
4175}
ed957684 4176
3772a991
JS		 4177/**
4178 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4179 * @phba: pointer to lpfc hba data structure.
4180 *
4181 * This routine is invoked to unset the driver internal resources set up
4182 * specific for supporting the SLI-3 HBA device it attached to.
4183 **/
4184static void
4185lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4186{
4187 /* Free device driver memory allocated */
4188 lpfc_mem_free_all(phba);
3163f725 4189
3772a991
JS		 4190 return;
4191}
dea3101e 4192
3772a991 4193/**
da0436e9 4194 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3772a991
JS		 4195 * @phba: pointer to lpfc hba data structure.
4196 *
da0436e9
JS		 4197 * This routine is invoked to set up the driver internal resources specific to
4198 * support the SLI-4 HBA device it attached to.
3772a991
JS		 4199 *
4200 * Return codes
af901ca1 4201 * 0 - successful
da0436e9 4202 * other values - error
3772a991
JS		 4203 **/
4204static int
da0436e9 4205lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3772a991 4206{
da0436e9 4207 struct lpfc_sli *psli;
28baac74
JS		 4208 LPFC_MBOXQ_t *mboxq;
4209 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
4210 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4211 struct lpfc_mqe *mqe;
085c647c 4212 int longs, sli_family;
da0436e9
JS		 4213
4214 /* Before proceed, wait for POST done and device ready */
4215 rc = lpfc_sli4_post_status_check(phba);
4216 if (rc)
4217 return -ENODEV;
4218
3772a991 4219 /*
da0436e9 4220 * Initialize timers used by driver
3772a991 4221 */
3772a991 4222
da0436e9
JS		 4223 /* Heartbeat timer */
4224 init_timer(&phba->hb_tmofunc);
4225 phba->hb_tmofunc.function = lpfc_hb_timeout;
4226 phba->hb_tmofunc.data = (unsigned long)phba;
19ca7609
JS		 4227 init_timer(&phba->rrq_tmr);
4228 phba->rrq_tmr.function = lpfc_rrq_timeout;
4229 phba->rrq_tmr.data = (unsigned long)phba;
3772a991 4230
da0436e9
JS		 4231 psli = &phba->sli;
4232 /* MBOX heartbeat timer */
4233 init_timer(&psli->mbox_tmo);
4234 psli->mbox_tmo.function = lpfc_mbox_timeout;
4235 psli->mbox_tmo.data = (unsigned long) phba;
4236 /* Fabric block timer */
4237 init_timer(&phba->fabric_block_timer);
4238 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4239 phba->fabric_block_timer.data = (unsigned long) phba;
4240 /* EA polling mode timer */
4241 init_timer(&phba->eratt_poll);
4242 phba->eratt_poll.function = lpfc_poll_eratt;
4243 phba->eratt_poll.data = (unsigned long) phba;
ecfd03c6
JS		 4244 /* FCF rediscover timer */
4245 init_timer(&phba->fcf.redisc_wait);
4246 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4247 phba->fcf.redisc_wait.data = (unsigned long)phba;
4248
da0436e9
JS		 4249 /*
4250 * We need to do a READ_CONFIG mailbox command here before
4251 * calling lpfc_get_cfgparam. For VFs this will report the
4252 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4253 * All of the resources allocated
4254 * for this Port are tied to these values.
4255 */
4256 /* Get all the module params for configuring this host */
4257 lpfc_get_cfgparam(phba);
4258 phba->max_vpi = LPFC_MAX_VPI;
4259 /* This will be set to correct value after the read_config mbox */
4260 phba->max_vports = 0;
3772a991 4261
da0436e9
JS		 4262 /* Program the default value of vlan_id and fc_map */
4263 phba->valid_vlan = 0;
4264 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4265 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4266 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
3772a991 4267
da0436e9
JS		 4268 /*
4269 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4270 * used to create the sg_dma_buf_pool must be dynamically calculated.
4271 * 2 segments are added since the IOCB needs a command and response bde.
4272 * To insure that the scsi sgl does not cross a 4k page boundary only
28baac74 4273 * sgl sizes of must be a power of 2.
da0436e9 4274 */
28baac74
JS		 4275 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4276 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
085c647c
JS		 4277
4278 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
4279 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4280 switch (sli_family) {
4281 case LPFC_SLI_INTF_FAMILY_BE2:
4282 case LPFC_SLI_INTF_FAMILY_BE3:
4283 /* There is a single hint for BE - 2 pages per BPL. */
4284 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
4285 LPFC_SLI_INTF_SLI_HINT1_1)
4286 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4287 break;
4288 case LPFC_SLI_INTF_FAMILY_LNCR_A0:
4289 case LPFC_SLI_INTF_FAMILY_LNCR_B0:
4290 default:
4291 break;
4292 }
28baac74
JS		 4293 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4294 dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4295 dma_buf_size = dma_buf_size << 1)
4296 ;
4297 if (dma_buf_size == max_buf_size)
4298 phba->cfg_sg_seg_cnt = (dma_buf_size -
4299 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4300 (2 * sizeof(struct sli4_sge))) /
4301 sizeof(struct sli4_sge);
4302 phba->cfg_sg_dma_buf_size = dma_buf_size;
3772a991 4303
da0436e9
JS		 4304 /* Initialize buffer queue management fields */
4305 hbq_count = lpfc_sli_hbq_count();
4306 for (i = 0; i < hbq_count; ++i)
4307 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4308 INIT_LIST_HEAD(&phba->rb_pend_list);
4309 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4310 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
3772a991 4311
da0436e9
JS		 4312 /*
4313 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4314 */
4315 /* Initialize the Abort scsi buffer list used by driver */
4316 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4317 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4318 /* This abort list used by worker thread */
4319 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
3772a991 4320
da0436e9 4321 /*
6d368e53 4322 * Initialize driver internal slow-path work queues
da0436e9 4323 */
3772a991 4324
da0436e9
JS		 4325 /* Driver internel slow-path CQ Event pool */
4326 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4327 /* Response IOCB work queue list */
45ed1190 4328 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
da0436e9
JS		 4329 /* Asynchronous event CQ Event work queue list */
4330 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4331 /* Fast-path XRI aborted CQ Event work queue list */
4332 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4333 /* Slow-path XRI aborted CQ Event work queue list */
4334 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4335 /* Receive queue CQ Event work queue list */
4336 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4337
6d368e53
JS		 4338 /* Initialize extent block lists. */
4339 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
4340 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
4341 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
4342 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
4343
da0436e9
JS		 4344 /* Initialize the driver internal SLI layer lists. */
4345 lpfc_sli_setup(phba);
4346 lpfc_sli_queue_setup(phba);
3772a991 4347
da0436e9
JS		 4348 /* Allocate device driver memory */
4349 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4350 if (rc)
4351 return -ENOMEM;
4352
2fcee4bf
JS		 4353 /* IF Type 2 ports get initialized now. */
4354 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4355 LPFC_SLI_INTF_IF_TYPE_2) {
4356 rc = lpfc_pci_function_reset(phba);
4357 if (unlikely(rc))
4358 return -ENODEV;
4359 }
4360
da0436e9
JS		 4361 /* Create the bootstrap mailbox command */
4362 rc = lpfc_create_bootstrap_mbox(phba);
4363 if (unlikely(rc))
4364 goto out_free_mem;
4365
4366 /* Set up the host's endian order with the device. */
4367 rc = lpfc_setup_endian_order(phba);
4368 if (unlikely(rc))
4369 goto out_free_bsmbx;
4370
4371 /* Set up the hba's configuration parameters. */
4372 rc = lpfc_sli4_read_config(phba);
4373 if (unlikely(rc))
4374 goto out_free_bsmbx;
4375
2fcee4bf
JS		 4376 /* IF Type 0 ports get initialized now. */
4377 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4378 LPFC_SLI_INTF_IF_TYPE_0) {
4379 rc = lpfc_pci_function_reset(phba);
4380 if (unlikely(rc))
4381 goto out_free_bsmbx;
4382 }
da0436e9 4383
cb5172ea
JS		 4384 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4385 GFP_KERNEL);
4386 if (!mboxq) {
4387 rc = -ENOMEM;
4388 goto out_free_bsmbx;
4389 }
4390
fedd3b7b 4391 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
cb5172ea
JS		 4392 lpfc_supported_pages(mboxq);
4393 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
fedd3b7b
JS		 4394 if (!rc) {
4395 mqe = &mboxq->u.mqe;
4396 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4397 LPFC_MAX_SUPPORTED_PAGES);
4398 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4399 switch (pn_page[i]) {
4400 case LPFC_SLI4_PARAMETERS:
4401 phba->sli4_hba.pc_sli4_params.supported = 1;
4402 break;
4403 default:
4404 break;
4405 }
4406 }
4407 /* Read the port's SLI4 Parameters capabilities if supported. */
4408 if (phba->sli4_hba.pc_sli4_params.supported)
4409 rc = lpfc_pc_sli4_params_get(phba, mboxq);
4410 if (rc) {
4411 mempool_free(mboxq, phba->mbox_mem_pool);
4412 rc = -EIO;
4413 goto out_free_bsmbx;
cb5172ea
JS		 4414 }
4415 }
fedd3b7b
JS		 4416 /*
4417 * Get sli4 parameters that override parameters from Port capabilities.
6d368e53
JS		 4418 * If this call fails, it isn't critical unless the SLI4 parameters come
4419 * back in conflict.
fedd3b7b 4420 */
6d368e53
JS		 4421 rc = lpfc_get_sli4_parameters(phba, mboxq);
4422 if (rc) {
4423 if (phba->sli4_hba.extents_in_use &&
4424 phba->sli4_hba.rpi_hdrs_in_use) {
4425 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4426 "2999 Unsupported SLI4 Parameters "
4427 "Extents and RPI headers enabled.\n");
4428 goto out_free_bsmbx;
4429 }
4430 }
cb5172ea 4431 mempool_free(mboxq, phba->mbox_mem_pool);
da0436e9
JS		 4432 /* Create all the SLI4 queues */
4433 rc = lpfc_sli4_queue_create(phba);
4434 if (rc)
4435 goto out_free_bsmbx;
4436
4437 /* Create driver internal CQE event pool */
4438 rc = lpfc_sli4_cq_event_pool_create(phba);
4439 if (rc)
4440 goto out_destroy_queue;
4441
4442 /* Initialize and populate the iocb list per host */
4443 rc = lpfc_init_sgl_list(phba);
4444 if (rc) {
4445 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4446 "1400 Failed to initialize sgl list.\n");
4447 goto out_destroy_cq_event_pool;
4448 }
4449 rc = lpfc_init_active_sgl_array(phba);
4450 if (rc) {
4451 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4452 "1430 Failed to initialize sgl list.\n");
4453 goto out_free_sgl_list;
4454 }
da0436e9
JS		 4455 rc = lpfc_sli4_init_rpi_hdrs(phba);
4456 if (rc) {
4457 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4458 "1432 Failed to initialize rpi headers.\n");
4459 goto out_free_active_sgl;
4460 }
4461
a93ff37a 4462 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
0c9ab6f5
JS		 4463 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4464 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4465 GFP_KERNEL);
4466 if (!phba->fcf.fcf_rr_bmask) {
4467 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4468 "2759 Failed allocate memory for FCF round "
4469 "robin failover bmask\n");
0558056c 4470 rc = -ENOMEM;
0c9ab6f5
JS		 4471 goto out_remove_rpi_hdrs;
4472 }
4473
da0436e9
JS		 4474 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4475 phba->cfg_fcp_eq_count), GFP_KERNEL);
4476 if (!phba->sli4_hba.fcp_eq_hdl) {
4477 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4478 "2572 Failed allocate memory for fast-path "
4479 "per-EQ handle array\n");
0558056c 4480 rc = -ENOMEM;
0c9ab6f5 4481 goto out_free_fcf_rr_bmask;
da0436e9
JS		 4482 }
4483
4484 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4485 phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4486 if (!phba->sli4_hba.msix_entries) {
4487 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4488 "2573 Failed allocate memory for msi-x "
4489 "interrupt vector entries\n");
0558056c 4490 rc = -ENOMEM;
da0436e9
JS		 4491 goto out_free_fcp_eq_hdl;
4492 }
4493
912e3acd
JS		 4494 /*
4495 * Enable sr-iov virtual functions if supported and configured
4496 * through the module parameter.
4497 */
4498 if (phba->cfg_sriov_nr_virtfn > 0) {
4499 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4500 phba->cfg_sriov_nr_virtfn);
4501 if (rc) {
4502 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4503 "3020 Requested number of SR-IOV "
4504 "virtual functions (%d) is not "
4505 "supported\n",
4506 phba->cfg_sriov_nr_virtfn);
4507 phba->cfg_sriov_nr_virtfn = 0;
4508 }
4509 }
4510
da0436e9
JS		 4511 return rc;
4512
4513out_free_fcp_eq_hdl:
4514 kfree(phba->sli4_hba.fcp_eq_hdl);
0c9ab6f5
JS		 4515out_free_fcf_rr_bmask:
4516 kfree(phba->fcf.fcf_rr_bmask);
da0436e9
JS		 4517out_remove_rpi_hdrs:
4518 lpfc_sli4_remove_rpi_hdrs(phba);
4519out_free_active_sgl:
4520 lpfc_free_active_sgl(phba);
4521out_free_sgl_list:
4522 lpfc_free_sgl_list(phba);
4523out_destroy_cq_event_pool:
4524 lpfc_sli4_cq_event_pool_destroy(phba);
4525out_destroy_queue:
4526 lpfc_sli4_queue_destroy(phba);
4527out_free_bsmbx:
4528 lpfc_destroy_bootstrap_mbox(phba);
4529out_free_mem:
4530 lpfc_mem_free(phba);
4531 return rc;
4532}
4533
4534/**
4535 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4536 * @phba: pointer to lpfc hba data structure.
4537 *
4538 * This routine is invoked to unset the driver internal resources set up
4539 * specific for supporting the SLI-4 HBA device it attached to.
4540 **/
4541static void
4542lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4543{
4544 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4545
da0436e9
JS		 4546 /* Free memory allocated for msi-x interrupt vector entries */
4547 kfree(phba->sli4_hba.msix_entries);
4548
4549 /* Free memory allocated for fast-path work queue handles */
4550 kfree(phba->sli4_hba.fcp_eq_hdl);
4551
4552 /* Free the allocated rpi headers. */
4553 lpfc_sli4_remove_rpi_hdrs(phba);
d11e31dd 4554 lpfc_sli4_remove_rpis(phba);
da0436e9 4555
0c9ab6f5
JS		 4556 /* Free eligible FCF index bmask */
4557 kfree(phba->fcf.fcf_rr_bmask);
4558
da0436e9
JS		 4559 /* Free the ELS sgl list */
4560 lpfc_free_active_sgl(phba);
4561 lpfc_free_sgl_list(phba);
4562
4563 /* Free the SCSI sgl management array */
4564 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4565
4566 /* Free the SLI4 queues */
4567 lpfc_sli4_queue_destroy(phba);
4568
4569 /* Free the completion queue EQ event pool */
4570 lpfc_sli4_cq_event_release_all(phba);
4571 lpfc_sli4_cq_event_pool_destroy(phba);
4572
6d368e53
JS		 4573 /* Release resource identifiers. */
4574 lpfc_sli4_dealloc_resource_identifiers(phba);
4575
da0436e9
JS		 4576 /* Free the bsmbx region. */
4577 lpfc_destroy_bootstrap_mbox(phba);
4578
4579 /* Free the SLI Layer memory with SLI4 HBAs */
4580 lpfc_mem_free_all(phba);
4581
4582 /* Free the current connect table */
4583 list_for_each_entry_safe(conn_entry, next_conn_entry,
4d9ab994
JS		 4584 &phba->fcf_conn_rec_list, list) {
4585 list_del_init(&conn_entry->list);
da0436e9 4586 kfree(conn_entry);
4d9ab994 4587 }
da0436e9
JS		 4588
4589 return;
4590}
4591
4592/**
25985edc 4593 * lpfc_init_api_table_setup - Set up init api function jump table
da0436e9
JS		 4594 * @phba: The hba struct for which this call is being executed.
4595 * @dev_grp: The HBA PCI-Device group number.
4596 *
4597 * This routine sets up the device INIT interface API function jump table
4598 * in @phba struct.
4599 *
4600 * Returns: 0 - success, -ENODEV - failure.
4601 **/
4602int
4603lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4604{
84d1b006
JS		 4605 phba->lpfc_hba_init_link = lpfc_hba_init_link;
4606 phba->lpfc_hba_down_link = lpfc_hba_down_link;
7f86059a 4607 phba->lpfc_selective_reset = lpfc_selective_reset;
da0436e9
JS		 4608 switch (dev_grp) {
4609 case LPFC_PCI_DEV_LP:
4610 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4611 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4612 phba->lpfc_stop_port = lpfc_stop_port_s3;
4613 break;
4614 case LPFC_PCI_DEV_OC:
4615 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4616 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4617 phba->lpfc_stop_port = lpfc_stop_port_s4;
4618 break;
4619 default:
4620 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4621 "1431 Invalid HBA PCI-device group: 0x%x\n",
4622 dev_grp);
4623 return -ENODEV;
4624 break;
4625 }
4626 return 0;
4627}
4628
4629/**
4630 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4631 * @phba: pointer to lpfc hba data structure.
4632 *
4633 * This routine is invoked to set up the driver internal resources before the
4634 * device specific resource setup to support the HBA device it attached to.
4635 *
4636 * Return codes
af901ca1 4637 * 0 - successful
da0436e9
JS		 4638 * other values - error
4639 **/
4640static int
4641lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4642{
4643 /*
4644 * Driver resources common to all SLI revisions
4645 */
4646 atomic_set(&phba->fast_event_count, 0);
4647 spin_lock_init(&phba->hbalock);
4648
4649 /* Initialize ndlp management spinlock */
4650 spin_lock_init(&phba->ndlp_lock);
4651
4652 INIT_LIST_HEAD(&phba->port_list);
4653 INIT_LIST_HEAD(&phba->work_list);
4654 init_waitqueue_head(&phba->wait_4_mlo_m_q);
4655
4656 /* Initialize the wait queue head for the kernel thread */
4657 init_waitqueue_head(&phba->work_waitq);
4658
4659 /* Initialize the scsi buffer list used by driver for scsi IO */
4660 spin_lock_init(&phba->scsi_buf_list_lock);
4661 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4662
4663 /* Initialize the fabric iocb list */
4664 INIT_LIST_HEAD(&phba->fabric_iocb_list);
4665
4666 /* Initialize list to save ELS buffers */
4667 INIT_LIST_HEAD(&phba->elsbuf);
4668
4669 /* Initialize FCF connection rec list */
4670 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4671
4672 return 0;
4673}
4674
4675/**
4676 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4677 * @phba: pointer to lpfc hba data structure.
4678 *
4679 * This routine is invoked to set up the driver internal resources after the
4680 * device specific resource setup to support the HBA device it attached to.
4681 *
4682 * Return codes
af901ca1 4683 * 0 - successful
da0436e9
JS		 4684 * other values - error
4685 **/
4686static int
4687lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4688{
4689 int error;
4690
4691 /* Startup the kernel thread for this host adapter. */
4692 phba->worker_thread = kthread_run(lpfc_do_work, phba,
4693 "lpfc_worker_%d", phba->brd_no);
4694 if (IS_ERR(phba->worker_thread)) {
4695 error = PTR_ERR(phba->worker_thread);
4696 return error;
3772a991
JS		 4697 }
4698
4699 return 0;
4700}
4701
4702/**
4703 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4704 * @phba: pointer to lpfc hba data structure.
4705 *
4706 * This routine is invoked to unset the driver internal resources set up after
4707 * the device specific resource setup for supporting the HBA device it
4708 * attached to.
4709 **/
4710static void
4711lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4712{
4713 /* Stop kernel worker thread */
4714 kthread_stop(phba->worker_thread);
4715}
4716
4717/**
4718 * lpfc_free_iocb_list - Free iocb list.
4719 * @phba: pointer to lpfc hba data structure.
4720 *
4721 * This routine is invoked to free the driver's IOCB list and memory.
4722 **/
4723static void
4724lpfc_free_iocb_list(struct lpfc_hba *phba)
4725{
4726 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4727
4728 spin_lock_irq(&phba->hbalock);
4729 list_for_each_entry_safe(iocbq_entry, iocbq_next,
4730 &phba->lpfc_iocb_list, list) {
4731 list_del(&iocbq_entry->list);
4732 kfree(iocbq_entry);
4733 phba->total_iocbq_bufs--;
98c9ea5c 4734 }
3772a991
JS		 4735 spin_unlock_irq(&phba->hbalock);
4736
4737 return;
4738}
4739
4740/**
4741 * lpfc_init_iocb_list - Allocate and initialize iocb list.
4742 * @phba: pointer to lpfc hba data structure.
4743 *
4744 * This routine is invoked to allocate and initizlize the driver's IOCB
4745 * list and set up the IOCB tag array accordingly.
4746 *
4747 * Return codes
af901ca1 4748 * 0 - successful
3772a991
JS		 4749 * other values - error
4750 **/
4751static int
4752lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4753{
4754 struct lpfc_iocbq *iocbq_entry = NULL;
4755 uint16_t iotag;
4756 int i;
dea3101e 4757
4758 /* Initialize and populate the iocb list per host. */
4759 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
3772a991 4760 for (i = 0; i < iocb_count; i++) {
dd00cc48 4761 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
dea3101e 4762 if (iocbq_entry == NULL) {
4763 printk(KERN_ERR "%s: only allocated %d iocbs of "
4764 "expected %d count. Unloading driver.\n",
cadbd4a5 4765 __func__, i, LPFC_IOCB_LIST_CNT);
dea3101e 4766 goto out_free_iocbq;
4767 }
4768
604a3e30
JB		 4769 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4770 if (iotag == 0) {
3772a991 4771 kfree(iocbq_entry);
604a3e30 4772 printk(KERN_ERR "%s: failed to allocate IOTAG. "
3772a991 4773 "Unloading driver.\n", __func__);
604a3e30
JB		 4774 goto out_free_iocbq;
4775 }
6d368e53 4776 iocbq_entry->sli4_lxritag = NO_XRI;
3772a991 4777 iocbq_entry->sli4_xritag = NO_XRI;
2e0fef85
JS		 4778
4779 spin_lock_irq(&phba->hbalock);
dea3101e 4780 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4781 phba->total_iocbq_bufs++;
2e0fef85 4782 spin_unlock_irq(&phba->hbalock);
dea3101e 4783 }
4784
3772a991 4785 return 0;
dea3101e 4786
3772a991
JS		 4787out_free_iocbq:
4788 lpfc_free_iocb_list(phba);
dea3101e 4789
3772a991
JS		 4790 return -ENOMEM;
4791}
5e9d9b82 4792
3772a991 4793/**
da0436e9
JS		 4794 * lpfc_free_sgl_list - Free sgl list.
4795 * @phba: pointer to lpfc hba data structure.
3772a991 4796 *
da0436e9 4797 * This routine is invoked to free the driver's sgl list and memory.
3772a991 4798 **/
da0436e9
JS		 4799static void
4800lpfc_free_sgl_list(struct lpfc_hba *phba)
3772a991 4801{
da0436e9
JS		 4802 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
4803 LIST_HEAD(sglq_list);
dea3101e 4804
da0436e9
JS		 4805 spin_lock_irq(&phba->hbalock);
4806 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
4807 spin_unlock_irq(&phba->hbalock);
dea3101e 4808
da0436e9
JS		 4809 list_for_each_entry_safe(sglq_entry, sglq_next,
4810 &sglq_list, list) {
4811 list_del(&sglq_entry->list);
4812 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
4813 kfree(sglq_entry);
4814 phba->sli4_hba.total_sglq_bufs--;
4815 }
da0436e9
JS		 4816 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4817}
92d7f7b0 4818
da0436e9
JS		 4819/**
4820 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4821 * @phba: pointer to lpfc hba data structure.
4822 *
4823 * This routine is invoked to allocate the driver's active sgl memory.
4824 * This array will hold the sglq_entry's for active IOs.
4825 **/
4826static int
4827lpfc_init_active_sgl_array(struct lpfc_hba *phba)
4828{
4829 int size;
4830 size = sizeof(struct lpfc_sglq *);
4831 size *= phba->sli4_hba.max_cfg_param.max_xri;
4832
4833 phba->sli4_hba.lpfc_sglq_active_list =
4834 kzalloc(size, GFP_KERNEL);
4835 if (!phba->sli4_hba.lpfc_sglq_active_list)
4836 return -ENOMEM;
4837 return 0;
3772a991
JS		 4838}
4839
4840/**
da0436e9 4841 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
3772a991
JS		 4842 * @phba: pointer to lpfc hba data structure.
4843 *
da0436e9
JS		 4844 * This routine is invoked to walk through the array of active sglq entries
4845 * and free all of the resources.
4846 * This is just a place holder for now.
3772a991
JS		 4847 **/
4848static void
da0436e9 4849lpfc_free_active_sgl(struct lpfc_hba *phba)
3772a991 4850{
da0436e9 4851 kfree(phba->sli4_hba.lpfc_sglq_active_list);
3772a991
JS		 4852}
4853
4854/**
da0436e9 4855 * lpfc_init_sgl_list - Allocate and initialize sgl list.
3772a991
JS		 4856 * @phba: pointer to lpfc hba data structure.
4857 *
da0436e9
JS		 4858 * This routine is invoked to allocate and initizlize the driver's sgl
4859 * list and set up the sgl xritag tag array accordingly.
3772a991
JS		 4860 *
4861 * Return codes
af901ca1 4862 * 0 - successful
da0436e9 4863 * other values - error
3772a991
JS		 4864 **/
4865static int
da0436e9 4866lpfc_init_sgl_list(struct lpfc_hba *phba)
3772a991 4867{
da0436e9
JS		 4868 struct lpfc_sglq *sglq_entry = NULL;
4869 int i;
4870 int els_xri_cnt;
4871
4872 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4873 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6d368e53 4874 "2400 ELS XRI count %d.\n",
da0436e9
JS		 4875 els_xri_cnt);
4876 /* Initialize and populate the sglq list per host/VF. */
4877 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4878 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4879
4880 /* Sanity check on XRI management */
4881 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4882 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4883 "2562 No room left for SCSI XRI allocation: "
4884 "max_xri=%d, els_xri=%d\n",
4885 phba->sli4_hba.max_cfg_param.max_xri,
4886 els_xri_cnt);
4887 return -ENOMEM;
4888 }
3772a991 4889
da0436e9
JS		 4890 /* Allocate memory for the ELS XRI management array */
4891 phba->sli4_hba.lpfc_els_sgl_array =
4892 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4893 GFP_KERNEL);
0ff10d46 4894
da0436e9
JS		 4895 if (!phba->sli4_hba.lpfc_els_sgl_array) {
4896 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4897 "2401 Failed to allocate memory for ELS "
4898 "XRI management array of size %d.\n",
4899 els_xri_cnt);
4900 return -ENOMEM;
4901 }
2e0fef85 4902
da0436e9
JS		 4903 /* Keep the SCSI XRI into the XRI management array */
4904 phba->sli4_hba.scsi_xri_max =
4905 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4906 phba->sli4_hba.scsi_xri_cnt = 0;
da0436e9
JS		 4907 phba->sli4_hba.lpfc_scsi_psb_array =
4908 kzalloc((sizeof(struct lpfc_scsi_buf *) *
4909 phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4910
4911 if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4912 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4913 "2563 Failed to allocate memory for SCSI "
4914 "XRI management array of size %d.\n",
4915 phba->sli4_hba.scsi_xri_max);
4916 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4917 return -ENOMEM;
4918 }
4919
4920 for (i = 0; i < els_xri_cnt; i++) {
4921 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4922 if (sglq_entry == NULL) {
4923 printk(KERN_ERR "%s: only allocated %d sgls of "
4924 "expected %d count. Unloading driver.\n",
4925 __func__, i, els_xri_cnt);
4926 goto out_free_mem;
4927 }
4928
da0436e9
JS		 4929 sglq_entry->buff_type = GEN_BUFF_TYPE;
4930 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4931 if (sglq_entry->virt == NULL) {
4932 kfree(sglq_entry);
4933 printk(KERN_ERR "%s: failed to allocate mbuf.\n"
4934 "Unloading driver.\n", __func__);
4935 goto out_free_mem;
4936 }
4937 sglq_entry->sgl = sglq_entry->virt;
4938 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4939
4940 /* The list order is used by later block SGL registraton */
4941 spin_lock_irq(&phba->hbalock);
0f65ff68 4942 sglq_entry->state = SGL_FREED;
da0436e9
JS		 4943 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
4944 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
4945 phba->sli4_hba.total_sglq_bufs++;
4946 spin_unlock_irq(&phba->hbalock);
4947 }
4948 return 0;
4949
4950out_free_mem:
4951 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4952 lpfc_free_sgl_list(phba);
4953 return -ENOMEM;
4954}
4955
4956/**
4957 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4958 * @phba: pointer to lpfc hba data structure.
4959 *
4960 * This routine is invoked to post rpi header templates to the
4961 * HBA consistent with the SLI-4 interface spec. This routine
4962 * posts a PAGE_SIZE memory region to the port to hold up to
4963 * PAGE_SIZE modulo 64 rpi context headers.
4964 * No locks are held here because this is an initialization routine
4965 * called only from probe or lpfc_online when interrupts are not
4966 * enabled and the driver is reinitializing the device.
4967 *
4968 * Return codes
af901ca1 4969 * 0 - successful
25985edc 4970 * -ENOMEM - No available memory
d439d286 4971 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 4972 **/
4973int
4974lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
4975{
4976 int rc = 0;
da0436e9
JS		 4977 struct lpfc_rpi_hdr *rpi_hdr;
4978
4979 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
da0436e9 4980 /*
6d368e53
JS		 4981 * If the SLI4 port supports extents, posting the rpi header isn't
4982 * required. Set the expected maximum count and let the actual value
4983 * get set when extents are fully allocated.
da0436e9 4984 */
6d368e53
JS		 4985 if (!phba->sli4_hba.rpi_hdrs_in_use) {
4986 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
4987 return rc;
4988 }
4989 if (phba->sli4_hba.extents_in_use)
4990 return -EIO;
da0436e9
JS		 4991
4992 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
4993 if (!rpi_hdr) {
4994 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4995 "0391 Error during rpi post operation\n");
4996 lpfc_sli4_remove_rpis(phba);
4997 rc = -ENODEV;
4998 }
4999
5000 return rc;
5001}
5002
5003/**
5004 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5005 * @phba: pointer to lpfc hba data structure.
5006 *
5007 * This routine is invoked to allocate a single 4KB memory region to
5008 * support rpis and stores them in the phba. This single region
5009 * provides support for up to 64 rpis. The region is used globally
5010 * by the device.
5011 *
5012 * Returns:
5013 * A valid rpi hdr on success.
5014 * A NULL pointer on any failure.
5015 **/
5016struct lpfc_rpi_hdr *
5017lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5018{
5019 uint16_t rpi_limit, curr_rpi_range;
5020 struct lpfc_dmabuf *dmabuf;
5021 struct lpfc_rpi_hdr *rpi_hdr;
9589b062 5022 uint32_t rpi_count;
da0436e9 5023
6d368e53
JS		 5024 /*
5025 * If the SLI4 port supports extents, posting the rpi header isn't
5026 * required. Set the expected maximum count and let the actual value
5027 * get set when extents are fully allocated.
5028 */
5029 if (!phba->sli4_hba.rpi_hdrs_in_use)
5030 return NULL;
5031 if (phba->sli4_hba.extents_in_use)
5032 return NULL;
5033
5034 /* The limit on the logical index is just the max_rpi count. */
da0436e9 5035 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
6d368e53 5036 phba->sli4_hba.max_cfg_param.max_rpi - 1;
da0436e9
JS		 5037
5038 spin_lock_irq(&phba->hbalock);
6d368e53
JS		 5039 /*
5040 * Establish the starting RPI in this header block. The starting
5041 * rpi is normalized to a zero base because the physical rpi is
5042 * port based.
5043 */
5044 curr_rpi_range = phba->sli4_hba.next_rpi -
5045 phba->sli4_hba.max_cfg_param.rpi_base;
da0436e9
JS		 5046 spin_unlock_irq(&phba->hbalock);
5047
5048 /*
5049 * The port has a limited number of rpis. The increment here
5050 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5051 * and to allow the full max_rpi range per port.
5052 */
5053 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
9589b062
JS		 5054 rpi_count = rpi_limit - curr_rpi_range;
5055 else
5056 rpi_count = LPFC_RPI_HDR_COUNT;
da0436e9 5057
6d368e53
JS		 5058 if (!rpi_count)
5059 return NULL;
da0436e9
JS		 5060 /*
5061 * First allocate the protocol header region for the port. The
5062 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5063 */
5064 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5065 if (!dmabuf)
5066 return NULL;
5067
5068 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5069 LPFC_HDR_TEMPLATE_SIZE,
5070 &dmabuf->phys,
5071 GFP_KERNEL);
5072 if (!dmabuf->virt) {
5073 rpi_hdr = NULL;
5074 goto err_free_dmabuf;
5075 }
5076
5077 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5078 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5079 rpi_hdr = NULL;
5080 goto err_free_coherent;
5081 }
5082
5083 /* Save the rpi header data for cleanup later. */
5084 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5085 if (!rpi_hdr)
5086 goto err_free_coherent;
5087
5088 rpi_hdr->dmabuf = dmabuf;
5089 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5090 rpi_hdr->page_count = 1;
5091 spin_lock_irq(&phba->hbalock);
6d368e53
JS		 5092
5093 /* The rpi_hdr stores the logical index only. */
5094 rpi_hdr->start_rpi = curr_rpi_range;
da0436e9
JS		 5095 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5096
5097 /*
6d368e53
JS		 5098 * The next_rpi stores the next logical module-64 rpi value used
5099 * to post physical rpis in subsequent rpi postings.
da0436e9 5100 */
9589b062 5101 phba->sli4_hba.next_rpi += rpi_count;
da0436e9
JS		 5102 spin_unlock_irq(&phba->hbalock);
5103 return rpi_hdr;
5104
5105 err_free_coherent:
5106 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5107 dmabuf->virt, dmabuf->phys);
5108 err_free_dmabuf:
5109 kfree(dmabuf);
5110 return NULL;
5111}
5112
5113/**
5114 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5115 * @phba: pointer to lpfc hba data structure.
5116 *
5117 * This routine is invoked to remove all memory resources allocated
6d368e53
JS		 5118 * to support rpis for SLI4 ports not supporting extents. This routine
5119 * presumes the caller has released all rpis consumed by fabric or port
5120 * logins and is prepared to have the header pages removed.
da0436e9
JS		 5121 **/
5122void
5123lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5124{
5125 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5126
6d368e53
JS		 5127 if (!phba->sli4_hba.rpi_hdrs_in_use)
5128 goto exit;
5129
da0436e9
JS		 5130 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5131 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5132 list_del(&rpi_hdr->list);
5133 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5134 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5135 kfree(rpi_hdr->dmabuf);
5136 kfree(rpi_hdr);
5137 }
6d368e53
JS		 5138 exit:
5139 /* There are no rpis available to the port now. */
5140 phba->sli4_hba.next_rpi = 0;
da0436e9
JS		 5141}
5142
5143/**
5144 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5145 * @pdev: pointer to pci device data structure.
5146 *
5147 * This routine is invoked to allocate the driver hba data structure for an
5148 * HBA device. If the allocation is successful, the phba reference to the
5149 * PCI device data structure is set.
5150 *
5151 * Return codes
af901ca1 5152 * pointer to @phba - successful
da0436e9
JS		 5153 * NULL - error
5154 **/
5155static struct lpfc_hba *
5156lpfc_hba_alloc(struct pci_dev *pdev)
5157{
5158 struct lpfc_hba *phba;
5159
5160 /* Allocate memory for HBA structure */
5161 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5162 if (!phba) {
e34ccdfe 5163 dev_err(&pdev->dev, "failed to allocate hba struct\n");
da0436e9
JS		 5164 return NULL;
5165 }
5166
5167 /* Set reference to PCI device in HBA structure */
5168 phba->pcidev = pdev;
5169
5170 /* Assign an unused board number */
5171 phba->brd_no = lpfc_get_instance();
5172 if (phba->brd_no < 0) {
5173 kfree(phba);
5174 return NULL;
5175 }
5176
4fede78f 5177 spin_lock_init(&phba->ct_ev_lock);
f1c3b0fc
JS		 5178 INIT_LIST_HEAD(&phba->ct_ev_waiters);
5179
da0436e9
JS		 5180 return phba;
5181}
5182
5183/**
5184 * lpfc_hba_free - Free driver hba data structure with a device.
5185 * @phba: pointer to lpfc hba data structure.
5186 *
5187 * This routine is invoked to free the driver hba data structure with an
5188 * HBA device.
5189 **/
5190static void
5191lpfc_hba_free(struct lpfc_hba *phba)
5192{
5193 /* Release the driver assigned board number */
5194 idr_remove(&lpfc_hba_index, phba->brd_no);
5195
5196 kfree(phba);
5197 return;
5198}
5199
5200/**
5201 * lpfc_create_shost - Create hba physical port with associated scsi host.
5202 * @phba: pointer to lpfc hba data structure.
5203 *
5204 * This routine is invoked to create HBA physical port and associate a SCSI
5205 * host with it.
5206 *
5207 * Return codes
af901ca1 5208 * 0 - successful
da0436e9
JS		 5209 * other values - error
5210 **/
5211static int
5212lpfc_create_shost(struct lpfc_hba *phba)
5213{
5214 struct lpfc_vport *vport;
5215 struct Scsi_Host *shost;
5216
5217 /* Initialize HBA FC structure */
5218 phba->fc_edtov = FF_DEF_EDTOV;
5219 phba->fc_ratov = FF_DEF_RATOV;
5220 phba->fc_altov = FF_DEF_ALTOV;
5221 phba->fc_arbtov = FF_DEF_ARBTOV;
5222
d7c47992 5223 atomic_set(&phba->sdev_cnt, 0);
da0436e9
JS		 5224 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5225 if (!vport)
5226 return -ENODEV;
5227
5228 shost = lpfc_shost_from_vport(vport);
5229 phba->pport = vport;
5230 lpfc_debugfs_initialize(vport);
5231 /* Put reference to SCSI host to driver's device private data */
5232 pci_set_drvdata(phba->pcidev, shost);
2e0fef85 5233
3772a991
JS		 5234 return 0;
5235}
db2378e0 5236
3772a991
JS		 5237/**
5238 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5239 * @phba: pointer to lpfc hba data structure.
5240 *
5241 * This routine is invoked to destroy HBA physical port and the associated
5242 * SCSI host.
5243 **/
5244static void
5245lpfc_destroy_shost(struct lpfc_hba *phba)
5246{
5247 struct lpfc_vport *vport = phba->pport;
5248
5249 /* Destroy physical port that associated with the SCSI host */
5250 destroy_port(vport);
5251
5252 return;
5253}
5254
5255/**
5256 * lpfc_setup_bg - Setup Block guard structures and debug areas.
5257 * @phba: pointer to lpfc hba data structure.
5258 * @shost: the shost to be used to detect Block guard settings.
5259 *
5260 * This routine sets up the local Block guard protocol settings for @shost.
5261 * This routine also allocates memory for debugging bg buffers.
5262 **/
5263static void
5264lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5265{
5266 int pagecnt = 10;
5267 if (lpfc_prot_mask && lpfc_prot_guard) {
5268 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5269 "1478 Registering BlockGuard with the "
5270 "SCSI layer\n");
5271 scsi_host_set_prot(shost, lpfc_prot_mask);
5272 scsi_host_set_guard(shost, lpfc_prot_guard);
5273 }
5274 if (!_dump_buf_data) {
5275 while (pagecnt) {
5276 spin_lock_init(&_dump_buf_lock);
5277 _dump_buf_data =
5278 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5279 if (_dump_buf_data) {
6a9c52cf
JS		 5280 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5281 "9043 BLKGRD: allocated %d pages for "
3772a991
JS		 5282 "_dump_buf_data at 0x%p\n",
5283 (1 << pagecnt), _dump_buf_data);
5284 _dump_buf_data_order = pagecnt;
5285 memset(_dump_buf_data, 0,
5286 ((1 << PAGE_SHIFT) << pagecnt));
5287 break;
5288 } else
5289 --pagecnt;
5290 }
5291 if (!_dump_buf_data_order)
6a9c52cf
JS		 5292 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5293 "9044 BLKGRD: ERROR unable to allocate "
3772a991
JS		 5294 "memory for hexdump\n");
5295 } else
6a9c52cf
JS		 5296 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5297 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
3772a991
JS		 5298 "\n", _dump_buf_data);
5299 if (!_dump_buf_dif) {
5300 while (pagecnt) {
5301 _dump_buf_dif =
5302 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5303 if (_dump_buf_dif) {
6a9c52cf
JS		 5304 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5305 "9046 BLKGRD: allocated %d pages for "
3772a991
JS		 5306 "_dump_buf_dif at 0x%p\n",
5307 (1 << pagecnt), _dump_buf_dif);
5308 _dump_buf_dif_order = pagecnt;
5309 memset(_dump_buf_dif, 0,
5310 ((1 << PAGE_SHIFT) << pagecnt));
5311 break;
5312 } else
5313 --pagecnt;
5314 }
5315 if (!_dump_buf_dif_order)
6a9c52cf
JS		 5316 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5317 "9047 BLKGRD: ERROR unable to allocate "
3772a991
JS		 5318 "memory for hexdump\n");
5319 } else
6a9c52cf
JS		 5320 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5321 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
3772a991
JS		 5322 _dump_buf_dif);
5323}
5324
5325/**
5326 * lpfc_post_init_setup - Perform necessary device post initialization setup.
5327 * @phba: pointer to lpfc hba data structure.
5328 *
5329 * This routine is invoked to perform all the necessary post initialization
5330 * setup for the device.
5331 **/
5332static void
5333lpfc_post_init_setup(struct lpfc_hba *phba)
5334{
5335 struct Scsi_Host *shost;
5336 struct lpfc_adapter_event_header adapter_event;
5337
5338 /* Get the default values for Model Name and Description */
5339 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5340
5341 /*
5342 * hba setup may have changed the hba_queue_depth so we need to
5343 * adjust the value of can_queue.
5344 */
5345 shost = pci_get_drvdata(phba->pcidev);
5346 shost->can_queue = phba->cfg_hba_queue_depth - 10;
5347 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5348 lpfc_setup_bg(phba, shost);
5349
5350 lpfc_host_attrib_init(shost);
5351
5352 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5353 spin_lock_irq(shost->host_lock);
5354 lpfc_poll_start_timer(phba);
5355 spin_unlock_irq(shost->host_lock);
5356 }
5357
5358 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5359 "0428 Perform SCSI scan\n");
5360 /* Send board arrival event to upper layer */
5361 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5362 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5363 fc_host_post_vendor_event(shost, fc_get_event_number(),
5364 sizeof(adapter_event),
5365 (char *) &adapter_event,
5366 LPFC_NL_VENDOR_ID);
5367 return;
5368}
5369
5370/**
5371 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5372 * @phba: pointer to lpfc hba data structure.
5373 *
5374 * This routine is invoked to set up the PCI device memory space for device
5375 * with SLI-3 interface spec.
5376 *
5377 * Return codes
af901ca1 5378 * 0 - successful
3772a991
JS		 5379 * other values - error
5380 **/
5381static int
5382lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5383{
5384 struct pci_dev *pdev;
5385 unsigned long bar0map_len, bar2map_len;
5386 int i, hbq_count;
5387 void *ptr;
5388 int error = -ENODEV;
5389
5390 /* Obtain PCI device reference */
5391 if (!phba->pcidev)
5392 return error;
5393 else
5394 pdev = phba->pcidev;
5395
5396 /* Set the device DMA mask size */
8e68597d
MR		 5397 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5398 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5399 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5400 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
3772a991 5401 return error;
8e68597d
MR		 5402 }
5403 }
3772a991
JS		 5404
5405 /* Get the bus address of Bar0 and Bar2 and the number of bytes
5406 * required by each mapping.
5407 */
5408 phba->pci_bar0_map = pci_resource_start(pdev, 0);
5409 bar0map_len = pci_resource_len(pdev, 0);
5410
5411 phba->pci_bar2_map = pci_resource_start(pdev, 2);
5412 bar2map_len = pci_resource_len(pdev, 2);
5413
5414 /* Map HBA SLIM to a kernel virtual address. */
5415 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5416 if (!phba->slim_memmap_p) {
5417 dev_printk(KERN_ERR, &pdev->dev,
5418 "ioremap failed for SLIM memory.\n");
5419 goto out;
5420 }
5421
5422 /* Map HBA Control Registers to a kernel virtual address. */
5423 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5424 if (!phba->ctrl_regs_memmap_p) {
5425 dev_printk(KERN_ERR, &pdev->dev,
5426 "ioremap failed for HBA control registers.\n");
5427 goto out_iounmap_slim;
5428 }
5429
5430 /* Allocate memory for SLI-2 structures */
5431 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5432 SLI2_SLIM_SIZE,
5433 &phba->slim2p.phys,
5434 GFP_KERNEL);
5435 if (!phba->slim2p.virt)
5436 goto out_iounmap;
5437
5438 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5439 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7a470277
JS		 5440 phba->mbox_ext = (phba->slim2p.virt +
5441 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
3772a991
JS		 5442 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5443 phba->IOCBs = (phba->slim2p.virt +
5444 offsetof(struct lpfc_sli2_slim, IOCBs));
5445
5446 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5447 lpfc_sli_hbq_size(),
5448 &phba->hbqslimp.phys,
5449 GFP_KERNEL);
5450 if (!phba->hbqslimp.virt)
5451 goto out_free_slim;
5452
5453 hbq_count = lpfc_sli_hbq_count();
5454 ptr = phba->hbqslimp.virt;
5455 for (i = 0; i < hbq_count; ++i) {
5456 phba->hbqs[i].hbq_virt = ptr;
5457 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5458 ptr += (lpfc_hbq_defs[i]->entry_count *
5459 sizeof(struct lpfc_hbq_entry));
5460 }
5461 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5462 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5463
5464 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5465
5466 INIT_LIST_HEAD(&phba->rb_pend_list);
5467
5468 phba->MBslimaddr = phba->slim_memmap_p;
5469 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5470 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5471 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5472 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5473
5474 return 0;
5475
5476out_free_slim:
5477 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5478 phba->slim2p.virt, phba->slim2p.phys);
5479out_iounmap:
5480 iounmap(phba->ctrl_regs_memmap_p);
5481out_iounmap_slim:
5482 iounmap(phba->slim_memmap_p);
5483out:
5484 return error;
5485}
5486
5487/**
5488 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5489 * @phba: pointer to lpfc hba data structure.
5490 *
5491 * This routine is invoked to unset the PCI device memory space for device
5492 * with SLI-3 interface spec.
5493 **/
5494static void
5495lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5496{
5497 struct pci_dev *pdev;
5498
5499 /* Obtain PCI device reference */
5500 if (!phba->pcidev)
5501 return;
5502 else
5503 pdev = phba->pcidev;
5504
5505 /* Free coherent DMA memory allocated */
5506 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5507 phba->hbqslimp.virt, phba->hbqslimp.phys);
5508 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5509 phba->slim2p.virt, phba->slim2p.phys);
5510
5511 /* I/O memory unmap */
5512 iounmap(phba->ctrl_regs_memmap_p);
5513 iounmap(phba->slim_memmap_p);
5514
5515 return;
5516}
5517
5518/**
da0436e9 5519 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
3772a991
JS		 5520 * @phba: pointer to lpfc hba data structure.
5521 *
da0436e9
JS		 5522 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5523 * done and check status.
3772a991 5524 *
da0436e9 5525 * Return 0 if successful, otherwise -ENODEV.
3772a991 5526 **/
da0436e9
JS		 5527int
5528lpfc_sli4_post_status_check(struct lpfc_hba *phba)
3772a991 5529{
2fcee4bf
JS		 5530 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
5531 struct lpfc_register reg_data;
5532 int i, port_error = 0;
5533 uint32_t if_type;
3772a991 5534
9940b97b
JS		 5535 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
5536 memset(&reg_data, 0, sizeof(reg_data));
2fcee4bf 5537 if (!phba->sli4_hba.PSMPHRregaddr)
da0436e9 5538 return -ENODEV;
3772a991 5539
da0436e9
JS		 5540 /* Wait up to 30 seconds for the SLI Port POST done and ready */
5541 for (i = 0; i < 3000; i++) {
9940b97b
JS		 5542 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
5543 &portsmphr_reg.word0) ||
5544 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
2fcee4bf 5545 /* Port has a fatal POST error, break out */
da0436e9
JS		 5546 port_error = -ENODEV;
5547 break;
5548 }
2fcee4bf
JS		 5549 if (LPFC_POST_STAGE_PORT_READY ==
5550 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
da0436e9 5551 break;
da0436e9 5552 msleep(10);
3772a991
JS		 5553 }
5554
2fcee4bf
JS		 5555 /*
5556 * If there was a port error during POST, then don't proceed with
5557 * other register reads as the data may not be valid. Just exit.
5558 */
5559 if (port_error) {
da0436e9 5560 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2fcee4bf
JS		 5561 "1408 Port Failed POST - portsmphr=0x%x, "
5562 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
5563 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
5564 portsmphr_reg.word0,
5565 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
5566 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
5567 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
5568 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
5569 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
5570 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
5571 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
5572 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
5573 } else {
28baac74 5574 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2fcee4bf
JS		 5575 "2534 Device Info: SLIFamily=0x%x, "
5576 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
5577 "SLIHint_2=0x%x, FT=0x%x\n",
28baac74
JS		 5578 bf_get(lpfc_sli_intf_sli_family,
5579 &phba->sli4_hba.sli_intf),
5580 bf_get(lpfc_sli_intf_slirev,
5581 &phba->sli4_hba.sli_intf),
085c647c
JS		 5582 bf_get(lpfc_sli_intf_if_type,
5583 &phba->sli4_hba.sli_intf),
5584 bf_get(lpfc_sli_intf_sli_hint1,
28baac74 5585 &phba->sli4_hba.sli_intf),
085c647c
JS		 5586 bf_get(lpfc_sli_intf_sli_hint2,
5587 &phba->sli4_hba.sli_intf),
5588 bf_get(lpfc_sli_intf_func_type,
28baac74 5589 &phba->sli4_hba.sli_intf));
2fcee4bf
JS		 5590 /*
5591 * Check for other Port errors during the initialization
5592 * process. Fail the load if the port did not come up
5593 * correctly.
5594 */
5595 if_type = bf_get(lpfc_sli_intf_if_type,
5596 &phba->sli4_hba.sli_intf);
5597 switch (if_type) {
5598 case LPFC_SLI_INTF_IF_TYPE_0:
5599 phba->sli4_hba.ue_mask_lo =
5600 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
5601 phba->sli4_hba.ue_mask_hi =
5602 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
5603 uerrlo_reg.word0 =
5604 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
5605 uerrhi_reg.word0 =
5606 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
5607 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5608 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5609 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5610 "1422 Unrecoverable Error "
5611 "Detected during POST "
5612 "uerr_lo_reg=0x%x, "
5613 "uerr_hi_reg=0x%x, "
5614 "ue_mask_lo_reg=0x%x, "
5615 "ue_mask_hi_reg=0x%x\n",
5616 uerrlo_reg.word0,
5617 uerrhi_reg.word0,
5618 phba->sli4_hba.ue_mask_lo,
5619 phba->sli4_hba.ue_mask_hi);
5620 port_error = -ENODEV;
5621 }
5622 break;
5623 case LPFC_SLI_INTF_IF_TYPE_2:
5624 /* Final checks. The port status should be clean. */
9940b97b
JS		 5625 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
5626 &reg_data.word0) ||
0558056c
JS		 5627 (bf_get(lpfc_sliport_status_err, &reg_data) &&
5628 !bf_get(lpfc_sliport_status_rn, &reg_data))) {
2fcee4bf
JS		 5629 phba->work_status[0] =
5630 readl(phba->sli4_hba.u.if_type2.
5631 ERR1regaddr);
5632 phba->work_status[1] =
5633 readl(phba->sli4_hba.u.if_type2.
5634 ERR2regaddr);
5635 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5636 "2888 Port Error Detected "
5637 "during POST: "
5638 "port status reg 0x%x, "
5639 "port_smphr reg 0x%x, "
5640 "error 1=0x%x, error 2=0x%x\n",
5641 reg_data.word0,
5642 portsmphr_reg.word0,
5643 phba->work_status[0],
5644 phba->work_status[1]);
5645 port_error = -ENODEV;
5646 }
5647 break;
5648 case LPFC_SLI_INTF_IF_TYPE_1:
5649 default:
5650 break;
5651 }
28baac74 5652 }
da0436e9
JS		 5653 return port_error;
5654}
3772a991 5655
da0436e9
JS		 5656/**
5657 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5658 * @phba: pointer to lpfc hba data structure.
2fcee4bf 5659 * @if_type: The SLI4 interface type getting configured.
da0436e9
JS		 5660 *
5661 * This routine is invoked to set up SLI4 BAR0 PCI config space register
5662 * memory map.
5663 **/
5664static void
2fcee4bf
JS		 5665lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
5666{
5667 switch (if_type) {
5668 case LPFC_SLI_INTF_IF_TYPE_0:
5669 phba->sli4_hba.u.if_type0.UERRLOregaddr =
5670 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
5671 phba->sli4_hba.u.if_type0.UERRHIregaddr =
5672 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
5673 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
5674 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
5675 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
5676 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
5677 phba->sli4_hba.SLIINTFregaddr =
5678 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5679 break;
5680 case LPFC_SLI_INTF_IF_TYPE_2:
5681 phba->sli4_hba.u.if_type2.ERR1regaddr =
5682 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_ERR_1;
5683 phba->sli4_hba.u.if_type2.ERR2regaddr =
5684 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_ERR_2;
5685 phba->sli4_hba.u.if_type2.CTRLregaddr =
5686 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_CNTRL;
5687 phba->sli4_hba.u.if_type2.STATUSregaddr =
5688 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_STATUS;
5689 phba->sli4_hba.SLIINTFregaddr =
5690 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5691 phba->sli4_hba.PSMPHRregaddr =
5692 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_IF2_SMPHR;
5693 phba->sli4_hba.RQDBregaddr =
5694 phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
5695 phba->sli4_hba.WQDBregaddr =
5696 phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
5697 phba->sli4_hba.EQCQDBregaddr =
5698 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
5699 phba->sli4_hba.MQDBregaddr =
5700 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
5701 phba->sli4_hba.BMBXregaddr =
5702 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
5703 break;
5704 case LPFC_SLI_INTF_IF_TYPE_1:
5705 default:
5706 dev_printk(KERN_ERR, &phba->pcidev->dev,
5707 "FATAL - unsupported SLI4 interface type - %d\n",
5708 if_type);
5709 break;
5710 }
da0436e9 5711}
3772a991 5712
da0436e9
JS		 5713/**
5714 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5715 * @phba: pointer to lpfc hba data structure.
5716 *
5717 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5718 * memory map.
5719 **/
5720static void
5721lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5722{
2fcee4bf
JS		 5723 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5724 LPFC_SLIPORT_IF0_SMPHR;
da0436e9 5725 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 5726 LPFC_HST_ISR0;
da0436e9 5727 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 5728 LPFC_HST_IMR0;
da0436e9 5729 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 5730 LPFC_HST_ISCR0;
3772a991
JS		 5731}
5732
5733/**
da0436e9 5734 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
3772a991 5735 * @phba: pointer to lpfc hba data structure.
da0436e9 5736 * @vf: virtual function number
3772a991 5737 *
da0436e9
JS		 5738 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5739 * based on the given viftual function number, @vf.
5740 *
5741 * Return 0 if successful, otherwise -ENODEV.
3772a991 5742 **/
da0436e9
JS		 5743static int
5744lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
3772a991 5745{
da0436e9
JS		 5746 if (vf > LPFC_VIR_FUNC_MAX)
5747 return -ENODEV;
3772a991 5748
da0436e9
JS		 5749 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5750 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5751 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5752 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5753 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5754 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5755 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5756 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5757 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5758 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5759 return 0;
3772a991
JS		 5760}
5761
5762/**
da0436e9 5763 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
3772a991
JS		 5764 * @phba: pointer to lpfc hba data structure.
5765 *
da0436e9
JS		 5766 * This routine is invoked to create the bootstrap mailbox
5767 * region consistent with the SLI-4 interface spec. This
5768 * routine allocates all memory necessary to communicate
5769 * mailbox commands to the port and sets up all alignment
5770 * needs. No locks are expected to be held when calling
5771 * this routine.
3772a991
JS		 5772 *
5773 * Return codes
af901ca1 5774 * 0 - successful
d439d286 5775 * -ENOMEM - could not allocated memory.
da0436e9 5776 **/
3772a991 5777static int
da0436e9 5778lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
3772a991 5779{
da0436e9
JS		 5780 uint32_t bmbx_size;
5781 struct lpfc_dmabuf *dmabuf;
5782 struct dma_address *dma_address;
5783 uint32_t pa_addr;
5784 uint64_t phys_addr;
5785
5786 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5787 if (!dmabuf)
5788 return -ENOMEM;
3772a991 5789
da0436e9
JS		 5790 /*
5791 * The bootstrap mailbox region is comprised of 2 parts
5792 * plus an alignment restriction of 16 bytes.
5793 */
5794 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5795 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5796 bmbx_size,
5797 &dmabuf->phys,
5798 GFP_KERNEL);
5799 if (!dmabuf->virt) {
5800 kfree(dmabuf);
5801 return -ENOMEM;
3772a991 5802 }
da0436e9 5803 memset(dmabuf->virt, 0, bmbx_size);
3772a991 5804
da0436e9
JS		 5805 /*
5806 * Initialize the bootstrap mailbox pointers now so that the register
5807 * operations are simple later. The mailbox dma address is required
5808 * to be 16-byte aligned. Also align the virtual memory as each
5809 * maibox is copied into the bmbx mailbox region before issuing the
5810 * command to the port.
5811 */
5812 phba->sli4_hba.bmbx.dmabuf = dmabuf;
5813 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
5814
5815 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
5816 LPFC_ALIGN_16_BYTE);
5817 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
5818 LPFC_ALIGN_16_BYTE);
5819
5820 /*
5821 * Set the high and low physical addresses now. The SLI4 alignment
5822 * requirement is 16 bytes and the mailbox is posted to the port
5823 * as two 30-bit addresses. The other data is a bit marking whether
5824 * the 30-bit address is the high or low address.
5825 * Upcast bmbx aphys to 64bits so shift instruction compiles
5826 * clean on 32 bit machines.
5827 */
5828 dma_address = &phba->sli4_hba.bmbx.dma_address;
5829 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
5830 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
5831 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
5832 LPFC_BMBX_BIT1_ADDR_HI);
5833
5834 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
5835 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
5836 LPFC_BMBX_BIT1_ADDR_LO);
5837 return 0;
3772a991
JS		 5838}
5839
5840/**
da0436e9 5841 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
3772a991
JS		 5842 * @phba: pointer to lpfc hba data structure.
5843 *
da0436e9
JS		 5844 * This routine is invoked to teardown the bootstrap mailbox
5845 * region and release all host resources. This routine requires
5846 * the caller to ensure all mailbox commands recovered, no
5847 * additional mailbox comands are sent, and interrupts are disabled
5848 * before calling this routine.
5849 *
5850 **/
3772a991 5851static void
da0436e9 5852lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
3772a991 5853{
da0436e9
JS		 5854 dma_free_coherent(&phba->pcidev->dev,
5855 phba->sli4_hba.bmbx.bmbx_size,
5856 phba->sli4_hba.bmbx.dmabuf->virt,
5857 phba->sli4_hba.bmbx.dmabuf->phys);
5858
5859 kfree(phba->sli4_hba.bmbx.dmabuf);
5860 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
3772a991
JS		 5861}
5862
5863/**
da0436e9 5864 * lpfc_sli4_read_config - Get the config parameters.
3772a991
JS		 5865 * @phba: pointer to lpfc hba data structure.
5866 *
da0436e9
JS		 5867 * This routine is invoked to read the configuration parameters from the HBA.
5868 * The configuration parameters are used to set the base and maximum values
5869 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5870 * allocation for the port.
3772a991
JS		 5871 *
5872 * Return codes
af901ca1 5873 * 0 - successful
25985edc 5874 * -ENOMEM - No available memory
d439d286 5875 * -EIO - The mailbox failed to complete successfully.
3772a991 5876 **/
da0436e9
JS		 5877static int
5878lpfc_sli4_read_config(struct lpfc_hba *phba)
3772a991 5879{
da0436e9
JS		 5880 LPFC_MBOXQ_t *pmb;
5881 struct lpfc_mbx_read_config *rd_config;
912e3acd
JS		 5882 union lpfc_sli4_cfg_shdr *shdr;
5883 uint32_t shdr_status, shdr_add_status;
5884 struct lpfc_mbx_get_func_cfg *get_func_cfg;
5885 struct lpfc_rsrc_desc_fcfcoe *desc;
5886 uint32_t desc_count;
5887 int length, i, rc = 0;
3772a991 5888
da0436e9
JS		 5889 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5890 if (!pmb) {
5891 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5892 "2011 Unable to allocate memory for issuing "
5893 "SLI_CONFIG_SPECIAL mailbox command\n");
5894 return -ENOMEM;
3772a991
JS		 5895 }
5896
da0436e9 5897 lpfc_read_config(phba, pmb);
3772a991 5898
da0436e9
JS		 5899 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5900 if (rc != MBX_SUCCESS) {
5901 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5902 "2012 Mailbox failed , mbxCmd x%x "
5903 "READ_CONFIG, mbxStatus x%x\n",
5904 bf_get(lpfc_mqe_command, &pmb->u.mqe),
5905 bf_get(lpfc_mqe_status, &pmb->u.mqe));
5906 rc = -EIO;
5907 } else {
5908 rd_config = &pmb->u.mqe.un.rd_config;
6d368e53
JS		 5909 phba->sli4_hba.extents_in_use =
5910 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
da0436e9
JS		 5911 phba->sli4_hba.max_cfg_param.max_xri =
5912 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
5913 phba->sli4_hba.max_cfg_param.xri_base =
5914 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
5915 phba->sli4_hba.max_cfg_param.max_vpi =
5916 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
5917 phba->sli4_hba.max_cfg_param.vpi_base =
5918 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
5919 phba->sli4_hba.max_cfg_param.max_rpi =
5920 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
5921 phba->sli4_hba.max_cfg_param.rpi_base =
5922 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
5923 phba->sli4_hba.max_cfg_param.max_vfi =
5924 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
5925 phba->sli4_hba.max_cfg_param.vfi_base =
5926 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
5927 phba->sli4_hba.max_cfg_param.max_fcfi =
5928 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
da0436e9
JS		 5929 phba->sli4_hba.max_cfg_param.max_eq =
5930 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
5931 phba->sli4_hba.max_cfg_param.max_rq =
5932 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
5933 phba->sli4_hba.max_cfg_param.max_wq =
5934 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
5935 phba->sli4_hba.max_cfg_param.max_cq =
5936 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
5937 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
5938 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
5939 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
5940 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5941 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
5ffc266e
JS		 5942 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
5943 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
da0436e9
JS		 5944 phba->max_vports = phba->max_vpi;
5945 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6d368e53
JS		 5946 "2003 cfg params Extents? %d "
5947 "XRI(B:%d M:%d), "
da0436e9
JS		 5948 "VPI(B:%d M:%d) "
5949 "VFI(B:%d M:%d) "
5950 "RPI(B:%d M:%d) "
6d368e53
JS		 5951 "FCFI(Count:%d)\n",
5952 phba->sli4_hba.extents_in_use,
da0436e9
JS		 5953 phba->sli4_hba.max_cfg_param.xri_base,
5954 phba->sli4_hba.max_cfg_param.max_xri,
5955 phba->sli4_hba.max_cfg_param.vpi_base,
5956 phba->sli4_hba.max_cfg_param.max_vpi,
5957 phba->sli4_hba.max_cfg_param.vfi_base,
5958 phba->sli4_hba.max_cfg_param.max_vfi,
5959 phba->sli4_hba.max_cfg_param.rpi_base,
5960 phba->sli4_hba.max_cfg_param.max_rpi,
da0436e9 5961 phba->sli4_hba.max_cfg_param.max_fcfi);
3772a991 5962 }
912e3acd
JS		 5963
5964 if (rc)
5965 goto read_cfg_out;
da0436e9
JS		 5966
5967 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
b92938b4
JS		 5968 if (phba->cfg_hba_queue_depth >
5969 (phba->sli4_hba.max_cfg_param.max_xri -
5970 lpfc_sli4_get_els_iocb_cnt(phba)))
da0436e9 5971 phba->cfg_hba_queue_depth =
b92938b4
JS		 5972 phba->sli4_hba.max_cfg_param.max_xri -
5973 lpfc_sli4_get_els_iocb_cnt(phba);
912e3acd
JS		 5974
5975 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
5976 LPFC_SLI_INTF_IF_TYPE_2)
5977 goto read_cfg_out;
5978
5979 /* get the pf# and vf# for SLI4 if_type 2 port */
5980 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
5981 sizeof(struct lpfc_sli4_cfg_mhdr));
5982 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
5983 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
5984 length, LPFC_SLI4_MBX_EMBED);
5985
5986 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5987 shdr = (union lpfc_sli4_cfg_shdr *)
5988 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
5989 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5990 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5991 if (rc || shdr_status || shdr_add_status) {
5992 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5993 "3026 Mailbox failed , mbxCmd x%x "
5994 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
5995 bf_get(lpfc_mqe_command, &pmb->u.mqe),
5996 bf_get(lpfc_mqe_status, &pmb->u.mqe));
5997 rc = -EIO;
5998 goto read_cfg_out;
5999 }
6000
6001 /* search for fc_fcoe resrouce descriptor */
6002 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6003 desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6004
6005 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6006 desc = (struct lpfc_rsrc_desc_fcfcoe *)
6007 &get_func_cfg->func_cfg.desc[i];
6008 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6009 bf_get(lpfc_rsrc_desc_pcie_type, desc)) {
6010 phba->sli4_hba.iov.pf_number =
6011 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6012 phba->sli4_hba.iov.vf_number =
6013 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6014 break;
6015 }
6016 }
6017
6018 if (i < LPFC_RSRC_DESC_MAX_NUM)
6019 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6020 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6021 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6022 phba->sli4_hba.iov.vf_number);
6023 else {
6024 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6025 "3028 GET_FUNCTION_CONFIG: failed to find "
6026 "Resrouce Descriptor:x%x\n",
6027 LPFC_RSRC_DESC_TYPE_FCFCOE);
6028 rc = -EIO;
6029 }
6030
6031read_cfg_out:
6032 mempool_free(pmb, phba->mbox_mem_pool);
da0436e9 6033 return rc;
3772a991
JS		 6034}
6035
6036/**
2fcee4bf 6037 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
3772a991
JS		 6038 * @phba: pointer to lpfc hba data structure.
6039 *
2fcee4bf
JS		 6040 * This routine is invoked to setup the port-side endian order when
6041 * the port if_type is 0. This routine has no function for other
6042 * if_types.
da0436e9
JS		 6043 *
6044 * Return codes
af901ca1 6045 * 0 - successful
25985edc 6046 * -ENOMEM - No available memory
d439d286 6047 * -EIO - The mailbox failed to complete successfully.
3772a991 6048 **/
da0436e9
JS		 6049static int
6050lpfc_setup_endian_order(struct lpfc_hba *phba)
3772a991 6051{
da0436e9 6052 LPFC_MBOXQ_t *mboxq;
2fcee4bf 6053 uint32_t if_type, rc = 0;
da0436e9
JS		 6054 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6055 HOST_ENDIAN_HIGH_WORD1};
3772a991 6056
2fcee4bf
JS		 6057 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6058 switch (if_type) {
6059 case LPFC_SLI_INTF_IF_TYPE_0:
6060 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6061 GFP_KERNEL);
6062 if (!mboxq) {
6063 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6064 "0492 Unable to allocate memory for "
6065 "issuing SLI_CONFIG_SPECIAL mailbox "
6066 "command\n");
6067 return -ENOMEM;
6068 }
3772a991 6069
2fcee4bf
JS		 6070 /*
6071 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6072 * two words to contain special data values and no other data.
6073 */
6074 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6075 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6076 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6077 if (rc != MBX_SUCCESS) {
6078 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6079 "0493 SLI_CONFIG_SPECIAL mailbox "
6080 "failed with status x%x\n",
6081 rc);
6082 rc = -EIO;
6083 }
6084 mempool_free(mboxq, phba->mbox_mem_pool);
6085 break;
6086 case LPFC_SLI_INTF_IF_TYPE_2:
6087 case LPFC_SLI_INTF_IF_TYPE_1:
6088 default:
6089 break;
da0436e9 6090 }
da0436e9 6091 return rc;
3772a991
JS		 6092}
6093
6094/**
da0436e9 6095 * lpfc_sli4_queue_create - Create all the SLI4 queues
3772a991
JS		 6096 * @phba: pointer to lpfc hba data structure.
6097 *
da0436e9
JS		 6098 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6099 * operation. For each SLI4 queue type, the parameters such as queue entry
6100 * count (queue depth) shall be taken from the module parameter. For now,
6101 * we just use some constant number as place holder.
6102 *
6103 * Return codes
af901ca1 6104 * 0 - successful
25985edc 6105 * -ENOMEM - No available memory
d439d286 6106 * -EIO - The mailbox failed to complete successfully.
3772a991 6107 **/
da0436e9
JS		 6108static int
6109lpfc_sli4_queue_create(struct lpfc_hba *phba)
3772a991 6110{
da0436e9
JS		 6111 struct lpfc_queue *qdesc;
6112 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6113 int cfg_fcp_wq_count;
6114 int cfg_fcp_eq_count;
3772a991 6115
da0436e9
JS		 6116 /*
6117 * Sanity check for confiugred queue parameters against the run-time
6118 * device parameters
6119 */
3772a991 6120
da0436e9
JS		 6121 /* Sanity check on FCP fast-path WQ parameters */
6122 cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
6123 if (cfg_fcp_wq_count >
6124 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
6125 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
6126 LPFC_SP_WQN_DEF;
6127 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
6128 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6129 "2581 Not enough WQs (%d) from "
6130 "the pci function for supporting "
6131 "FCP WQs (%d)\n",
6132 phba->sli4_hba.max_cfg_param.max_wq,
6133 phba->cfg_fcp_wq_count);
6134 goto out_error;
6135 }
6136 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6137 "2582 Not enough WQs (%d) from the pci "
6138 "function for supporting the requested "
6139 "FCP WQs (%d), the actual FCP WQs can "
6140 "be supported: %d\n",
6141 phba->sli4_hba.max_cfg_param.max_wq,
6142 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
6143 }
6144 /* The actual number of FCP work queues adopted */
6145 phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
6146
6147 /* Sanity check on FCP fast-path EQ parameters */
6148 cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
6149 if (cfg_fcp_eq_count >
6150 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
6151 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
6152 LPFC_SP_EQN_DEF;
6153 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
6154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6155 "2574 Not enough EQs (%d) from the "
6156 "pci function for supporting FCP "
6157 "EQs (%d)\n",
6158 phba->sli4_hba.max_cfg_param.max_eq,
6159 phba->cfg_fcp_eq_count);
6160 goto out_error;
6161 }
6162 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6163 "2575 Not enough EQs (%d) from the pci "
6164 "function for supporting the requested "
6165 "FCP EQs (%d), the actual FCP EQs can "
6166 "be supported: %d\n",
6167 phba->sli4_hba.max_cfg_param.max_eq,
6168 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
6169 }
6170 /* It does not make sense to have more EQs than WQs */
6171 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
6172 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6a9c52cf
JS		 6173 "2593 The FCP EQ count(%d) cannot be greater "
6174 "than the FCP WQ count(%d), limiting the "
6175 "FCP EQ count to %d\n", cfg_fcp_eq_count,
da0436e9
JS		 6176 phba->cfg_fcp_wq_count,
6177 phba->cfg_fcp_wq_count);
6178 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
6179 }
6180 /* The actual number of FCP event queues adopted */
6181 phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
6182 /* The overall number of event queues used */
6183 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
3772a991 6184
da0436e9
JS		 6185 /*
6186 * Create Event Queues (EQs)
6187 */
3772a991 6188
da0436e9
JS		 6189 /* Get EQ depth from module parameter, fake the default for now */
6190 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6191 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
3772a991 6192
da0436e9
JS		 6193 /* Create slow path event queue */
6194 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6195 phba->sli4_hba.eq_ecount);
6196 if (!qdesc) {
6197 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6198 "0496 Failed allocate slow-path EQ\n");
6199 goto out_error;
6200 }
6201 phba->sli4_hba.sp_eq = qdesc;
6202
6203 /* Create fast-path FCP Event Queue(s) */
6204 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
6205 phba->cfg_fcp_eq_count), GFP_KERNEL);
6206 if (!phba->sli4_hba.fp_eq) {
6207 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6208 "2576 Failed allocate memory for fast-path "
6209 "EQ record array\n");
6210 goto out_free_sp_eq;
6211 }
6212 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6213 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6214 phba->sli4_hba.eq_ecount);
6215 if (!qdesc) {
6216 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6217 "0497 Failed allocate fast-path EQ\n");
6218 goto out_free_fp_eq;
6219 }
6220 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
6221 }
6222
6223 /*
6224 * Create Complete Queues (CQs)
6225 */
6226
6227 /* Get CQ depth from module parameter, fake the default for now */
6228 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6229 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6230
6231 /* Create slow-path Mailbox Command Complete Queue */
6232 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6233 phba->sli4_hba.cq_ecount);
6234 if (!qdesc) {
6235 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6236 "0500 Failed allocate slow-path mailbox CQ\n");
6237 goto out_free_fp_eq;
6238 }
6239 phba->sli4_hba.mbx_cq = qdesc;
6240
6241 /* Create slow-path ELS Complete Queue */
6242 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6243 phba->sli4_hba.cq_ecount);
6244 if (!qdesc) {
6245 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6246 "0501 Failed allocate slow-path ELS CQ\n");
6247 goto out_free_mbx_cq;
6248 }
6249 phba->sli4_hba.els_cq = qdesc;
6250
da0436e9
JS		 6251
6252 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
6253 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6254 phba->cfg_fcp_eq_count), GFP_KERNEL);
6255 if (!phba->sli4_hba.fcp_cq) {
6256 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6257 "2577 Failed allocate memory for fast-path "
6258 "CQ record array\n");
4d9ab994 6259 goto out_free_els_cq;
da0436e9
JS		 6260 }
6261 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6262 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6263 phba->sli4_hba.cq_ecount);
6264 if (!qdesc) {
6265 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6266 "0499 Failed allocate fast-path FCP "
6267 "CQ (%d)\n", fcp_cqidx);
6268 goto out_free_fcp_cq;
6269 }
6270 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
6271 }
6272
6273 /* Create Mailbox Command Queue */
6274 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6275 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6276
6277 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
6278 phba->sli4_hba.mq_ecount);
6279 if (!qdesc) {
6280 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6281 "0505 Failed allocate slow-path MQ\n");
6282 goto out_free_fcp_cq;
6283 }
6284 phba->sli4_hba.mbx_wq = qdesc;
6285
6286 /*
6287 * Create all the Work Queues (WQs)
6288 */
6289 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6290 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6291
6292 /* Create slow-path ELS Work Queue */
6293 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6294 phba->sli4_hba.wq_ecount);
6295 if (!qdesc) {
6296 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6297 "0504 Failed allocate slow-path ELS WQ\n");
6298 goto out_free_mbx_wq;
6299 }
6300 phba->sli4_hba.els_wq = qdesc;
6301
6302 /* Create fast-path FCP Work Queue(s) */
6303 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6304 phba->cfg_fcp_wq_count), GFP_KERNEL);
6305 if (!phba->sli4_hba.fcp_wq) {
6306 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6307 "2578 Failed allocate memory for fast-path "
6308 "WQ record array\n");
6309 goto out_free_els_wq;
6310 }
6311 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6312 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6313 phba->sli4_hba.wq_ecount);
6314 if (!qdesc) {
6315 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6316 "0503 Failed allocate fast-path FCP "
6317 "WQ (%d)\n", fcp_wqidx);
6318 goto out_free_fcp_wq;
6319 }
6320 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
6321 }
6322
6323 /*
6324 * Create Receive Queue (RQ)
6325 */
6326 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6327 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6328
6329 /* Create Receive Queue for header */
6330 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6331 phba->sli4_hba.rq_ecount);
6332 if (!qdesc) {
6333 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6334 "0506 Failed allocate receive HRQ\n");
6335 goto out_free_fcp_wq;
6336 }
6337 phba->sli4_hba.hdr_rq = qdesc;
6338
6339 /* Create Receive Queue for data */
6340 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6341 phba->sli4_hba.rq_ecount);
6342 if (!qdesc) {
6343 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6344 "0507 Failed allocate receive DRQ\n");
6345 goto out_free_hdr_rq;
6346 }
6347 phba->sli4_hba.dat_rq = qdesc;
6348
6349 return 0;
6350
6351out_free_hdr_rq:
6352 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6353 phba->sli4_hba.hdr_rq = NULL;
6354out_free_fcp_wq:
6355 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
6356 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
6357 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
6358 }
6359 kfree(phba->sli4_hba.fcp_wq);
6360out_free_els_wq:
6361 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6362 phba->sli4_hba.els_wq = NULL;
6363out_free_mbx_wq:
6364 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6365 phba->sli4_hba.mbx_wq = NULL;
6366out_free_fcp_cq:
6367 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
6368 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
6369 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
6370 }
6371 kfree(phba->sli4_hba.fcp_cq);
da0436e9
JS		 6372out_free_els_cq:
6373 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6374 phba->sli4_hba.els_cq = NULL;
6375out_free_mbx_cq:
6376 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6377 phba->sli4_hba.mbx_cq = NULL;
6378out_free_fp_eq:
6379 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
6380 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
6381 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
6382 }
6383 kfree(phba->sli4_hba.fp_eq);
6384out_free_sp_eq:
6385 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6386 phba->sli4_hba.sp_eq = NULL;
6387out_error:
6388 return -ENOMEM;
6389}
6390
6391/**
6392 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6393 * @phba: pointer to lpfc hba data structure.
6394 *
6395 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6396 * operation.
6397 *
6398 * Return codes
af901ca1 6399 * 0 - successful
25985edc 6400 * -ENOMEM - No available memory
d439d286 6401 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 6402 **/
6403static void
6404lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
6405{
6406 int fcp_qidx;
6407
6408 /* Release mailbox command work queue */
6409 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6410 phba->sli4_hba.mbx_wq = NULL;
6411
6412 /* Release ELS work queue */
6413 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6414 phba->sli4_hba.els_wq = NULL;
6415
6416 /* Release FCP work queue */
6417 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6418 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
6419 kfree(phba->sli4_hba.fcp_wq);
6420 phba->sli4_hba.fcp_wq = NULL;
6421
6422 /* Release unsolicited receive queue */
6423 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6424 phba->sli4_hba.hdr_rq = NULL;
6425 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
6426 phba->sli4_hba.dat_rq = NULL;
6427
da0436e9
JS		 6428 /* Release ELS complete queue */
6429 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6430 phba->sli4_hba.els_cq = NULL;
6431
6432 /* Release mailbox command complete queue */
6433 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6434 phba->sli4_hba.mbx_cq = NULL;
6435
6436 /* Release FCP response complete queue */
0558056c
JS		 6437 fcp_qidx = 0;
6438 do
da0436e9 6439 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
0558056c 6440 while (++fcp_qidx < phba->cfg_fcp_eq_count);
da0436e9
JS		 6441 kfree(phba->sli4_hba.fcp_cq);
6442 phba->sli4_hba.fcp_cq = NULL;
6443
6444 /* Release fast-path event queue */
6445 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6446 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
6447 kfree(phba->sli4_hba.fp_eq);
6448 phba->sli4_hba.fp_eq = NULL;
6449
6450 /* Release slow-path event queue */
6451 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6452 phba->sli4_hba.sp_eq = NULL;
6453
6454 return;
6455}
6456
6457/**
6458 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
6459 * @phba: pointer to lpfc hba data structure.
6460 *
6461 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
6462 * operation.
6463 *
6464 * Return codes
af901ca1 6465 * 0 - successful
25985edc 6466 * -ENOMEM - No available memory
d439d286 6467 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 6468 **/
6469int
6470lpfc_sli4_queue_setup(struct lpfc_hba *phba)
6471{
6472 int rc = -ENOMEM;
6473 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6474 int fcp_cq_index = 0;
6475
6476 /*
6477 * Set up Event Queues (EQs)
6478 */
6479
6480 /* Set up slow-path event queue */
6481 if (!phba->sli4_hba.sp_eq) {
6482 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6483 "0520 Slow-path EQ not allocated\n");
6484 goto out_error;
6485 }
6486 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
6487 LPFC_SP_DEF_IMAX);
6488 if (rc) {
6489 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6490 "0521 Failed setup of slow-path EQ: "
6491 "rc = 0x%x\n", rc);
6492 goto out_error;
6493 }
6494 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6495 "2583 Slow-path EQ setup: queue-id=%d\n",
6496 phba->sli4_hba.sp_eq->queue_id);
6497
6498 /* Set up fast-path event queue */
6499 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6500 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
6501 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6502 "0522 Fast-path EQ (%d) not "
6503 "allocated\n", fcp_eqidx);
6504 goto out_destroy_fp_eq;
6505 }
6506 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
6507 phba->cfg_fcp_imax);
6508 if (rc) {
6509 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6510 "0523 Failed setup of fast-path EQ "
6511 "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6512 goto out_destroy_fp_eq;
6513 }
6514 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6515 "2584 Fast-path EQ setup: "
6516 "queue[%d]-id=%d\n", fcp_eqidx,
6517 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
6518 }
6519
6520 /*
6521 * Set up Complete Queues (CQs)
6522 */
6523
6524 /* Set up slow-path MBOX Complete Queue as the first CQ */
6525 if (!phba->sli4_hba.mbx_cq) {
6526 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6527 "0528 Mailbox CQ not allocated\n");
6528 goto out_destroy_fp_eq;
6529 }
6530 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
6531 LPFC_MCQ, LPFC_MBOX);
6532 if (rc) {
6533 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6534 "0529 Failed setup of slow-path mailbox CQ: "
6535 "rc = 0x%x\n", rc);
6536 goto out_destroy_fp_eq;
6537 }
6538 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6539 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6540 phba->sli4_hba.mbx_cq->queue_id,
6541 phba->sli4_hba.sp_eq->queue_id);
6542
6543 /* Set up slow-path ELS Complete Queue */
6544 if (!phba->sli4_hba.els_cq) {
6545 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6546 "0530 ELS CQ not allocated\n");
6547 goto out_destroy_mbx_cq;
6548 }
6549 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
6550 LPFC_WCQ, LPFC_ELS);
6551 if (rc) {
6552 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6553 "0531 Failed setup of slow-path ELS CQ: "
6554 "rc = 0x%x\n", rc);
6555 goto out_destroy_mbx_cq;
6556 }
6557 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6558 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6559 phba->sli4_hba.els_cq->queue_id,
6560 phba->sli4_hba.sp_eq->queue_id);
6561
da0436e9 6562 /* Set up fast-path FCP Response Complete Queue */
0558056c
JS		 6563 fcp_cqidx = 0;
6564 do {
da0436e9
JS		 6565 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6566 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6567 "0526 Fast-path FCP CQ (%d) not "
6568 "allocated\n", fcp_cqidx);
6569 goto out_destroy_fcp_cq;
6570 }
0558056c
JS		 6571 if (phba->cfg_fcp_eq_count)
6572 rc = lpfc_cq_create(phba,
6573 phba->sli4_hba.fcp_cq[fcp_cqidx],
6574 phba->sli4_hba.fp_eq[fcp_cqidx],
6575 LPFC_WCQ, LPFC_FCP);
6576 else
6577 rc = lpfc_cq_create(phba,
6578 phba->sli4_hba.fcp_cq[fcp_cqidx],
6579 phba->sli4_hba.sp_eq,
6580 LPFC_WCQ, LPFC_FCP);
da0436e9
JS		 6581 if (rc) {
6582 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6583 "0527 Failed setup of fast-path FCP "
6584 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6585 goto out_destroy_fcp_cq;
6586 }
6587 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6588 "2588 FCP CQ setup: cq[%d]-id=%d, "
0558056c 6589 "parent %seq[%d]-id=%d\n",
da0436e9
JS		 6590 fcp_cqidx,
6591 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
0558056c 6592 (phba->cfg_fcp_eq_count) ? "" : "sp_",
da0436e9 6593 fcp_cqidx,
0558056c
JS		 6594 (phba->cfg_fcp_eq_count) ?
6595 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id :
6596 phba->sli4_hba.sp_eq->queue_id);
6597 } while (++fcp_cqidx < phba->cfg_fcp_eq_count);
da0436e9
JS		 6598
6599 /*
6600 * Set up all the Work Queues (WQs)
6601 */
6602
6603 /* Set up Mailbox Command Queue */
6604 if (!phba->sli4_hba.mbx_wq) {
6605 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6606 "0538 Slow-path MQ not allocated\n");
6607 goto out_destroy_fcp_cq;
6608 }
6609 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
6610 phba->sli4_hba.mbx_cq, LPFC_MBOX);
6611 if (rc) {
6612 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6613 "0539 Failed setup of slow-path MQ: "
6614 "rc = 0x%x\n", rc);
6615 goto out_destroy_fcp_cq;
6616 }
6617 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6618 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6619 phba->sli4_hba.mbx_wq->queue_id,
6620 phba->sli4_hba.mbx_cq->queue_id);
6621
6622 /* Set up slow-path ELS Work Queue */
6623 if (!phba->sli4_hba.els_wq) {
6624 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6625 "0536 Slow-path ELS WQ not allocated\n");
6626 goto out_destroy_mbx_wq;
6627 }
6628 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
6629 phba->sli4_hba.els_cq, LPFC_ELS);
6630 if (rc) {
6631 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6632 "0537 Failed setup of slow-path ELS WQ: "
6633 "rc = 0x%x\n", rc);
6634 goto out_destroy_mbx_wq;
6635 }
6636 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6637 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6638 phba->sli4_hba.els_wq->queue_id,
6639 phba->sli4_hba.els_cq->queue_id);
6640
6641 /* Set up fast-path FCP Work Queue */
6642 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6643 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
6644 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6645 "0534 Fast-path FCP WQ (%d) not "
6646 "allocated\n", fcp_wqidx);
6647 goto out_destroy_fcp_wq;
6648 }
6649 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
6650 phba->sli4_hba.fcp_cq[fcp_cq_index],
6651 LPFC_FCP);
6652 if (rc) {
6653 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6654 "0535 Failed setup of fast-path FCP "
6655 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
6656 goto out_destroy_fcp_wq;
6657 }
6658 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6659 "2591 FCP WQ setup: wq[%d]-id=%d, "
6660 "parent cq[%d]-id=%d\n",
6661 fcp_wqidx,
6662 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
6663 fcp_cq_index,
6664 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
6665 /* Round robin FCP Work Queue's Completion Queue assignment */
0558056c
JS		 6666 if (phba->cfg_fcp_eq_count)
6667 fcp_cq_index = ((fcp_cq_index + 1) %
6668 phba->cfg_fcp_eq_count);
da0436e9
JS		 6669 }
6670
6671 /*
6672 * Create Receive Queue (RQ)
6673 */
6674 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
6675 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6676 "0540 Receive Queue not allocated\n");
6677 goto out_destroy_fcp_wq;
6678 }
6679 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
4d9ab994 6680 phba->sli4_hba.els_cq, LPFC_USOL);
da0436e9
JS		 6681 if (rc) {
6682 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6683 "0541 Failed setup of Receive Queue: "
6684 "rc = 0x%x\n", rc);
6685 goto out_destroy_fcp_wq;
6686 }
6687 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6688 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6689 "parent cq-id=%d\n",
6690 phba->sli4_hba.hdr_rq->queue_id,
6691 phba->sli4_hba.dat_rq->queue_id,
4d9ab994 6692 phba->sli4_hba.els_cq->queue_id);
da0436e9
JS		 6693 return 0;
6694
6695out_destroy_fcp_wq:
6696 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
6697 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6698 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6699out_destroy_mbx_wq:
6700 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6701out_destroy_fcp_cq:
6702 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
6703 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
da0436e9
JS		 6704 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6705out_destroy_mbx_cq:
6706 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6707out_destroy_fp_eq:
6708 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
6709 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6710 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6711out_error:
6712 return rc;
6713}
6714
6715/**
6716 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6717 * @phba: pointer to lpfc hba data structure.
6718 *
6719 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6720 * operation.
6721 *
6722 * Return codes
af901ca1 6723 * 0 - successful
25985edc 6724 * -ENOMEM - No available memory
d439d286 6725 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 6726 **/
6727void
6728lpfc_sli4_queue_unset(struct lpfc_hba *phba)
6729{
6730 int fcp_qidx;
6731
6732 /* Unset mailbox command work queue */
6733 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6734 /* Unset ELS work queue */
6735 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6736 /* Unset unsolicited receive queue */
6737 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
6738 /* Unset FCP work queue */
6739 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6740 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
6741 /* Unset mailbox command complete queue */
6742 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6743 /* Unset ELS complete queue */
6744 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
da0436e9
JS		 6745 /* Unset FCP response complete queue */
6746 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6747 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
6748 /* Unset fast-path event queue */
6749 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6750 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
6751 /* Unset slow-path event queue */
6752 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6753}
6754
6755/**
6756 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6757 * @phba: pointer to lpfc hba data structure.
6758 *
6759 * This routine is invoked to allocate and set up a pool of completion queue
6760 * events. The body of the completion queue event is a completion queue entry
6761 * CQE. For now, this pool is used for the interrupt service routine to queue
6762 * the following HBA completion queue events for the worker thread to process:
6763 * - Mailbox asynchronous events
6764 * - Receive queue completion unsolicited events
6765 * Later, this can be used for all the slow-path events.
6766 *
6767 * Return codes
af901ca1 6768 * 0 - successful
25985edc 6769 * -ENOMEM - No available memory
da0436e9
JS		 6770 **/
6771static int
6772lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
6773{
6774 struct lpfc_cq_event *cq_event;
6775 int i;
6776
6777 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
6778 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
6779 if (!cq_event)
6780 goto out_pool_create_fail;
6781 list_add_tail(&cq_event->list,
6782 &phba->sli4_hba.sp_cqe_event_pool);
6783 }
6784 return 0;
6785
6786out_pool_create_fail:
6787 lpfc_sli4_cq_event_pool_destroy(phba);
6788 return -ENOMEM;
6789}
6790
6791/**
6792 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6793 * @phba: pointer to lpfc hba data structure.
6794 *
6795 * This routine is invoked to free the pool of completion queue events at
6796 * driver unload time. Note that, it is the responsibility of the driver
6797 * cleanup routine to free all the outstanding completion-queue events
6798 * allocated from this pool back into the pool before invoking this routine
6799 * to destroy the pool.
6800 **/
6801static void
6802lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
6803{
6804 struct lpfc_cq_event *cq_event, *next_cq_event;
6805
6806 list_for_each_entry_safe(cq_event, next_cq_event,
6807 &phba->sli4_hba.sp_cqe_event_pool, list) {
6808 list_del(&cq_event->list);
6809 kfree(cq_event);
6810 }
6811}
6812
6813/**
6814 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6815 * @phba: pointer to lpfc hba data structure.
6816 *
6817 * This routine is the lock free version of the API invoked to allocate a
6818 * completion-queue event from the free pool.
6819 *
6820 * Return: Pointer to the newly allocated completion-queue event if successful
6821 * NULL otherwise.
6822 **/
6823struct lpfc_cq_event *
6824__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6825{
6826 struct lpfc_cq_event *cq_event = NULL;
6827
6828 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
6829 struct lpfc_cq_event, list);
6830 return cq_event;
6831}
6832
6833/**
6834 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6835 * @phba: pointer to lpfc hba data structure.
6836 *
6837 * This routine is the lock version of the API invoked to allocate a
6838 * completion-queue event from the free pool.
6839 *
6840 * Return: Pointer to the newly allocated completion-queue event if successful
6841 * NULL otherwise.
6842 **/
6843struct lpfc_cq_event *
6844lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6845{
6846 struct lpfc_cq_event *cq_event;
6847 unsigned long iflags;
6848
6849 spin_lock_irqsave(&phba->hbalock, iflags);
6850 cq_event = __lpfc_sli4_cq_event_alloc(phba);
6851 spin_unlock_irqrestore(&phba->hbalock, iflags);
6852 return cq_event;
6853}
6854
6855/**
6856 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6857 * @phba: pointer to lpfc hba data structure.
6858 * @cq_event: pointer to the completion queue event to be freed.
6859 *
6860 * This routine is the lock free version of the API invoked to release a
6861 * completion-queue event back into the free pool.
6862 **/
6863void
6864__lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6865 struct lpfc_cq_event *cq_event)
6866{
6867 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
6868}
6869
6870/**
6871 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6872 * @phba: pointer to lpfc hba data structure.
6873 * @cq_event: pointer to the completion queue event to be freed.
6874 *
6875 * This routine is the lock version of the API invoked to release a
6876 * completion-queue event back into the free pool.
6877 **/
6878void
6879lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6880 struct lpfc_cq_event *cq_event)
6881{
6882 unsigned long iflags;
6883 spin_lock_irqsave(&phba->hbalock, iflags);
6884 __lpfc_sli4_cq_event_release(phba, cq_event);
6885 spin_unlock_irqrestore(&phba->hbalock, iflags);
6886}
6887
6888/**
6889 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6890 * @phba: pointer to lpfc hba data structure.
6891 *
6892 * This routine is to free all the pending completion-queue events to the
6893 * back into the free pool for device reset.
6894 **/
6895static void
6896lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
6897{
6898 LIST_HEAD(cqelist);
6899 struct lpfc_cq_event *cqe;
6900 unsigned long iflags;
6901
6902 /* Retrieve all the pending WCQEs from pending WCQE lists */
6903 spin_lock_irqsave(&phba->hbalock, iflags);
6904 /* Pending FCP XRI abort events */
6905 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
6906 &cqelist);
6907 /* Pending ELS XRI abort events */
6908 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
6909 &cqelist);
6910 /* Pending asynnc events */
6911 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
6912 &cqelist);
6913 spin_unlock_irqrestore(&phba->hbalock, iflags);
6914
6915 while (!list_empty(&cqelist)) {
6916 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
6917 lpfc_sli4_cq_event_release(phba, cqe);
6918 }
6919}
6920
6921/**
6922 * lpfc_pci_function_reset - Reset pci function.
6923 * @phba: pointer to lpfc hba data structure.
6924 *
6925 * This routine is invoked to request a PCI function reset. It will destroys
6926 * all resources assigned to the PCI function which originates this request.
6927 *
6928 * Return codes
af901ca1 6929 * 0 - successful
25985edc 6930 * -ENOMEM - No available memory
d439d286 6931 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 6932 **/
6933int
6934lpfc_pci_function_reset(struct lpfc_hba *phba)
6935{
6936 LPFC_MBOXQ_t *mboxq;
2fcee4bf 6937 uint32_t rc = 0, if_type;
da0436e9 6938 uint32_t shdr_status, shdr_add_status;
2fcee4bf 6939 uint32_t rdy_chk, num_resets = 0, reset_again = 0;
da0436e9 6940 union lpfc_sli4_cfg_shdr *shdr;
2fcee4bf 6941 struct lpfc_register reg_data;
da0436e9 6942
2fcee4bf
JS		 6943 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6944 switch (if_type) {
6945 case LPFC_SLI_INTF_IF_TYPE_0:
6946 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6947 GFP_KERNEL);
6948 if (!mboxq) {
6949 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6950 "0494 Unable to allocate memory for "
6951 "issuing SLI_FUNCTION_RESET mailbox "
6952 "command\n");
6953 return -ENOMEM;
6954 }
da0436e9 6955
2fcee4bf
JS		 6956 /* Setup PCI function reset mailbox-ioctl command */
6957 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6958 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
6959 LPFC_SLI4_MBX_EMBED);
6960 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6961 shdr = (union lpfc_sli4_cfg_shdr *)
6962 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6963 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6964 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
6965 &shdr->response);
6966 if (rc != MBX_TIMEOUT)
6967 mempool_free(mboxq, phba->mbox_mem_pool);
6968 if (shdr_status || shdr_add_status || rc) {
6969 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6970 "0495 SLI_FUNCTION_RESET mailbox "
6971 "failed with status x%x add_status x%x,"
6972 " mbx status x%x\n",
6973 shdr_status, shdr_add_status, rc);
6974 rc = -ENXIO;
6975 }
6976 break;
6977 case LPFC_SLI_INTF_IF_TYPE_2:
6978 for (num_resets = 0;
6979 num_resets < MAX_IF_TYPE_2_RESETS;
6980 num_resets++) {
6981 reg_data.word0 = 0;
6982 bf_set(lpfc_sliport_ctrl_end, &reg_data,
6983 LPFC_SLIPORT_LITTLE_ENDIAN);
6984 bf_set(lpfc_sliport_ctrl_ip, &reg_data,
6985 LPFC_SLIPORT_INIT_PORT);
6986 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
6987 CTRLregaddr);
6988
6989 /*
6990 * Poll the Port Status Register and wait for RDY for
6991 * up to 10 seconds. If the port doesn't respond, treat
6992 * it as an error. If the port responds with RN, start
6993 * the loop again.
6994 */
6995 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
9940b97b
JS		 6996 if (lpfc_readl(phba->sli4_hba.u.if_type2.
6997 STATUSregaddr, &reg_data.word0)) {
6998 rc = -ENODEV;
6999 break;
7000 }
2fcee4bf
JS		 7001 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
7002 break;
7003 if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
7004 reset_again++;
7005 break;
7006 }
7007 msleep(10);
7008 }
7009
7010 /*
7011 * If the port responds to the init request with
7012 * reset needed, delay for a bit and restart the loop.
7013 */
7014 if (reset_again) {
7015 msleep(10);
7016 reset_again = 0;
7017 continue;
7018 }
7019
7020 /* Detect any port errors. */
9940b97b
JS		 7021 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7022 &reg_data.word0)) {
7023 rc = -ENODEV;
7024 break;
7025 }
2fcee4bf
JS		 7026 if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
7027 (rdy_chk >= 1000)) {
7028 phba->work_status[0] = readl(
7029 phba->sli4_hba.u.if_type2.ERR1regaddr);
7030 phba->work_status[1] = readl(
7031 phba->sli4_hba.u.if_type2.ERR2regaddr);
7032 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7033 "2890 Port Error Detected "
7034 "during Port Reset: "
7035 "port status reg 0x%x, "
7036 "error 1=0x%x, error 2=0x%x\n",
7037 reg_data.word0,
7038 phba->work_status[0],
7039 phba->work_status[1]);
7040 rc = -ENODEV;
7041 }
7042
7043 /*
7044 * Terminate the outer loop provided the Port indicated
7045 * ready within 10 seconds.
7046 */
7047 if (rdy_chk < 1000)
7048 break;
7049 }
0558056c
JS		 7050 /* delay driver action following IF_TYPE_2 function reset */
7051 msleep(100);
2fcee4bf
JS		 7052 break;
7053 case LPFC_SLI_INTF_IF_TYPE_1:
7054 default:
7055 break;
da0436e9 7056 }
2fcee4bf
JS		 7057
7058 /* Catch the not-ready port failure after a port reset. */
7059 if (num_resets >= MAX_IF_TYPE_2_RESETS)
7060 rc = -ENODEV;
7061
da0436e9
JS		 7062 return rc;
7063}
7064
7065/**
7066 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
7067 * @phba: pointer to lpfc hba data structure.
7068 * @cnt: number of nop mailbox commands to send.
7069 *
7070 * This routine is invoked to send a number @cnt of NOP mailbox command and
7071 * wait for each command to complete.
7072 *
7073 * Return: the number of NOP mailbox command completed.
7074 **/
7075static int
7076lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
7077{
7078 LPFC_MBOXQ_t *mboxq;
7079 int length, cmdsent;
7080 uint32_t mbox_tmo;
7081 uint32_t rc = 0;
7082 uint32_t shdr_status, shdr_add_status;
7083 union lpfc_sli4_cfg_shdr *shdr;
7084
7085 if (cnt == 0) {
7086 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7087 "2518 Requested to send 0 NOP mailbox cmd\n");
7088 return cnt;
7089 }
7090
7091 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7092 if (!mboxq) {
7093 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7094 "2519 Unable to allocate memory for issuing "
7095 "NOP mailbox command\n");
7096 return 0;
7097 }
7098
7099 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
7100 length = (sizeof(struct lpfc_mbx_nop) -
7101 sizeof(struct lpfc_sli4_cfg_mhdr));
7102 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7103 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
7104
7105 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
7106 for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
7107 if (!phba->sli4_hba.intr_enable)
7108 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7109 else
7110 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7111 if (rc == MBX_TIMEOUT)
7112 break;
7113 /* Check return status */
7114 shdr = (union lpfc_sli4_cfg_shdr *)
7115 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7116 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7117 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7118 &shdr->response);
7119 if (shdr_status || shdr_add_status || rc) {
7120 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7121 "2520 NOP mailbox command failed "
7122 "status x%x add_status x%x mbx "
7123 "status x%x\n", shdr_status,
7124 shdr_add_status, rc);
7125 break;
7126 }
7127 }
7128
7129 if (rc != MBX_TIMEOUT)
7130 mempool_free(mboxq, phba->mbox_mem_pool);
7131
7132 return cmdsent;
7133}
7134
da0436e9
JS		 7135/**
7136 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7137 * @phba: pointer to lpfc hba data structure.
7138 *
7139 * This routine is invoked to set up the PCI device memory space for device
7140 * with SLI-4 interface spec.
7141 *
7142 * Return codes
af901ca1 7143 * 0 - successful
da0436e9
JS		 7144 * other values - error
7145 **/
7146static int
7147lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
7148{
7149 struct pci_dev *pdev;
7150 unsigned long bar0map_len, bar1map_len, bar2map_len;
7151 int error = -ENODEV;
2fcee4bf 7152 uint32_t if_type;
da0436e9
JS		 7153
7154 /* Obtain PCI device reference */
7155 if (!phba->pcidev)
7156 return error;
7157 else
7158 pdev = phba->pcidev;
7159
7160 /* Set the device DMA mask size */
8e68597d
MR		 7161 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7162 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7163 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7164 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
da0436e9 7165 return error;
8e68597d
MR		 7166 }
7167 }
da0436e9 7168
2fcee4bf
JS		 7169 /*
7170 * The BARs and register set definitions and offset locations are
7171 * dependent on the if_type.
7172 */
7173 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7174 &phba->sli4_hba.sli_intf.word0)) {
7175 return error;
7176 }
7177
7178 /* There is no SLI3 failback for SLI4 devices. */
7179 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7180 LPFC_SLI_INTF_VALID) {
7181 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7182 "2894 SLI_INTF reg contents invalid "
7183 "sli_intf reg 0x%x\n",
7184 phba->sli4_hba.sli_intf.word0);
7185 return error;
7186 }
7187
7188 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7189 /*
7190 * Get the bus address of SLI4 device Bar regions and the
7191 * number of bytes required by each mapping. The mapping of the
7192 * particular PCI BARs regions is dependent on the type of
7193 * SLI4 device.
da0436e9 7194 */
1dfb5a47
JS		 7195 if (pci_resource_start(pdev, 0)) {
7196 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7197 bar0map_len = pci_resource_len(pdev, 0);
2fcee4bf
JS		 7198
7199 /*
7200 * Map SLI4 PCI Config Space Register base to a kernel virtual
7201 * addr
7202 */
7203 phba->sli4_hba.conf_regs_memmap_p =
7204 ioremap(phba->pci_bar0_map, bar0map_len);
7205 if (!phba->sli4_hba.conf_regs_memmap_p) {
7206 dev_printk(KERN_ERR, &pdev->dev,
7207 "ioremap failed for SLI4 PCI config "
7208 "registers.\n");
7209 goto out;
7210 }
7211 /* Set up BAR0 PCI config space register memory map */
7212 lpfc_sli4_bar0_register_memmap(phba, if_type);
1dfb5a47
JS		 7213 } else {
7214 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7215 bar0map_len = pci_resource_len(pdev, 1);
2fcee4bf
JS		 7216 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7217 dev_printk(KERN_ERR, &pdev->dev,
7218 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7219 goto out;
7220 }
7221 phba->sli4_hba.conf_regs_memmap_p =
da0436e9 7222 ioremap(phba->pci_bar0_map, bar0map_len);
2fcee4bf
JS		 7223 if (!phba->sli4_hba.conf_regs_memmap_p) {
7224 dev_printk(KERN_ERR, &pdev->dev,
7225 "ioremap failed for SLI4 PCI config "
7226 "registers.\n");
7227 goto out;
7228 }
7229 lpfc_sli4_bar0_register_memmap(phba, if_type);
da0436e9
JS		 7230 }
7231
c31098ce
JS		 7232 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7233 (pci_resource_start(pdev, 2))) {
2fcee4bf
JS		 7234 /*
7235 * Map SLI4 if type 0 HBA Control Register base to a kernel
7236 * virtual address and setup the registers.
7237 */
7238 phba->pci_bar1_map = pci_resource_start(pdev, 2);
7239 bar1map_len = pci_resource_len(pdev, 2);
7240 phba->sli4_hba.ctrl_regs_memmap_p =
da0436e9 7241 ioremap(phba->pci_bar1_map, bar1map_len);
2fcee4bf
JS		 7242 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7243 dev_printk(KERN_ERR, &pdev->dev,
da0436e9 7244 "ioremap failed for SLI4 HBA control registers.\n");
2fcee4bf
JS		 7245 goto out_iounmap_conf;
7246 }
7247 lpfc_sli4_bar1_register_memmap(phba);
da0436e9
JS		 7248 }
7249
c31098ce
JS		 7250 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7251 (pci_resource_start(pdev, 4))) {
2fcee4bf
JS		 7252 /*
7253 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7254 * virtual address and setup the registers.
7255 */
7256 phba->pci_bar2_map = pci_resource_start(pdev, 4);
7257 bar2map_len = pci_resource_len(pdev, 4);
7258 phba->sli4_hba.drbl_regs_memmap_p =
da0436e9 7259 ioremap(phba->pci_bar2_map, bar2map_len);
2fcee4bf
JS		 7260 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7261 dev_printk(KERN_ERR, &pdev->dev,
da0436e9 7262 "ioremap failed for SLI4 HBA doorbell registers.\n");
2fcee4bf
JS		 7263 goto out_iounmap_ctrl;
7264 }
7265 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7266 if (error)
7267 goto out_iounmap_all;
da0436e9
JS		 7268 }
7269
da0436e9
JS		 7270 return 0;
7271
7272out_iounmap_all:
7273 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7274out_iounmap_ctrl:
7275 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7276out_iounmap_conf:
7277 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7278out:
7279 return error;
7280}
7281
7282/**
7283 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7284 * @phba: pointer to lpfc hba data structure.
7285 *
7286 * This routine is invoked to unset the PCI device memory space for device
7287 * with SLI-4 interface spec.
7288 **/
7289static void
7290lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
7291{
7292 struct pci_dev *pdev;
7293
7294 /* Obtain PCI device reference */
7295 if (!phba->pcidev)
7296 return;
7297 else
7298 pdev = phba->pcidev;
7299
7300 /* Free coherent DMA memory allocated */
7301
7302 /* Unmap I/O memory space */
7303 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7304 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7305 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7306
7307 return;
7308}
7309
7310/**
7311 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7312 * @phba: pointer to lpfc hba data structure.
7313 *
7314 * This routine is invoked to enable the MSI-X interrupt vectors to device
7315 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7316 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7317 * invoked, enables either all or nothing, depending on the current
7318 * availability of PCI vector resources. The device driver is responsible
7319 * for calling the individual request_irq() to register each MSI-X vector
7320 * with a interrupt handler, which is done in this function. Note that
7321 * later when device is unloading, the driver should always call free_irq()
7322 * on all MSI-X vectors it has done request_irq() on before calling
7323 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7324 * will be left with MSI-X enabled and leaks its vectors.
7325 *
7326 * Return codes
af901ca1 7327 * 0 - successful
da0436e9
JS		 7328 * other values - error
7329 **/
7330static int
7331lpfc_sli_enable_msix(struct lpfc_hba *phba)
7332{
7333 int rc, i;
7334 LPFC_MBOXQ_t *pmb;
7335
7336 /* Set up MSI-X multi-message vectors */
7337 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7338 phba->msix_entries[i].entry = i;
7339
7340 /* Configure MSI-X capability structure */
7341 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
7342 ARRAY_SIZE(phba->msix_entries));
7343 if (rc) {
7344 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7345 "0420 PCI enable MSI-X failed (%d)\n", rc);
7346 goto msi_fail_out;
7347 }
7348 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7349 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7350 "0477 MSI-X entry[%d]: vector=x%x "
7351 "message=%d\n", i,
7352 phba->msix_entries[i].vector,
7353 phba->msix_entries[i].entry);
7354 /*
7355 * Assign MSI-X vectors to interrupt handlers
7356 */
7357
7358 /* vector-0 is associated to slow-path handler */
7359 rc = request_irq(phba->msix_entries[0].vector,
7360 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
7361 LPFC_SP_DRIVER_HANDLER_NAME, phba);
7362 if (rc) {
7363 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7364 "0421 MSI-X slow-path request_irq failed "
7365 "(%d)\n", rc);
7366 goto msi_fail_out;
7367 }
7368
7369 /* vector-1 is associated to fast-path handler */
7370 rc = request_irq(phba->msix_entries[1].vector,
7371 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
7372 LPFC_FP_DRIVER_HANDLER_NAME, phba);
7373
7374 if (rc) {
7375 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7376 "0429 MSI-X fast-path request_irq failed "
7377 "(%d)\n", rc);
7378 goto irq_fail_out;
7379 }
7380
7381 /*
7382 * Configure HBA MSI-X attention conditions to messages
7383 */
7384 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7385
7386 if (!pmb) {
7387 rc = -ENOMEM;
7388 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7389 "0474 Unable to allocate memory for issuing "
7390 "MBOX_CONFIG_MSI command\n");
7391 goto mem_fail_out;
7392 }
7393 rc = lpfc_config_msi(phba, pmb);
7394 if (rc)
7395 goto mbx_fail_out;
7396 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7397 if (rc != MBX_SUCCESS) {
7398 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
7399 "0351 Config MSI mailbox command failed, "
7400 "mbxCmd x%x, mbxStatus x%x\n",
7401 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
7402 goto mbx_fail_out;
7403 }
7404
7405 /* Free memory allocated for mailbox command */
7406 mempool_free(pmb, phba->mbox_mem_pool);
7407 return rc;
7408
7409mbx_fail_out:
7410 /* Free memory allocated for mailbox command */
7411 mempool_free(pmb, phba->mbox_mem_pool);
7412
7413mem_fail_out:
7414 /* free the irq already requested */
7415 free_irq(phba->msix_entries[1].vector, phba);
7416
7417irq_fail_out:
7418 /* free the irq already requested */
7419 free_irq(phba->msix_entries[0].vector, phba);
7420
7421msi_fail_out:
7422 /* Unconfigure MSI-X capability structure */
7423 pci_disable_msix(phba->pcidev);
7424 return rc;
7425}
7426
7427/**
7428 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
7429 * @phba: pointer to lpfc hba data structure.
7430 *
7431 * This routine is invoked to release the MSI-X vectors and then disable the
7432 * MSI-X interrupt mode to device with SLI-3 interface spec.
7433 **/
7434static void
7435lpfc_sli_disable_msix(struct lpfc_hba *phba)
7436{
7437 int i;
7438
7439 /* Free up MSI-X multi-message vectors */
7440 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7441 free_irq(phba->msix_entries[i].vector, phba);
7442 /* Disable MSI-X */
7443 pci_disable_msix(phba->pcidev);
7444
7445 return;
7446}
7447
7448/**
7449 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
7450 * @phba: pointer to lpfc hba data structure.
7451 *
7452 * This routine is invoked to enable the MSI interrupt mode to device with
7453 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
7454 * enable the MSI vector. The device driver is responsible for calling the
7455 * request_irq() to register MSI vector with a interrupt the handler, which
7456 * is done in this function.
7457 *
7458 * Return codes
af901ca1 7459 * 0 - successful
da0436e9
JS		 7460 * other values - error
7461 */
7462static int
7463lpfc_sli_enable_msi(struct lpfc_hba *phba)
7464{
7465 int rc;
7466
7467 rc = pci_enable_msi(phba->pcidev);
7468 if (!rc)
7469 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7470 "0462 PCI enable MSI mode success.\n");
7471 else {
7472 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7473 "0471 PCI enable MSI mode failed (%d)\n", rc);
7474 return rc;
7475 }
7476
7477 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7478 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7479 if (rc) {
7480 pci_disable_msi(phba->pcidev);
7481 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7482 "0478 MSI request_irq failed (%d)\n", rc);
7483 }
7484 return rc;
7485}
7486
7487/**
7488 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
7489 * @phba: pointer to lpfc hba data structure.
7490 *
7491 * This routine is invoked to disable the MSI interrupt mode to device with
7492 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
7493 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7494 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7495 * its vector.
7496 */
7497static void
7498lpfc_sli_disable_msi(struct lpfc_hba *phba)
7499{
7500 free_irq(phba->pcidev->irq, phba);
7501 pci_disable_msi(phba->pcidev);
7502 return;
7503}
7504
7505/**
7506 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
7507 * @phba: pointer to lpfc hba data structure.
7508 *
7509 * This routine is invoked to enable device interrupt and associate driver's
7510 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
7511 * spec. Depends on the interrupt mode configured to the driver, the driver
7512 * will try to fallback from the configured interrupt mode to an interrupt
7513 * mode which is supported by the platform, kernel, and device in the order
7514 * of:
7515 * MSI-X -> MSI -> IRQ.
7516 *
7517 * Return codes
af901ca1 7518 * 0 - successful
da0436e9
JS		 7519 * other values - error
7520 **/
7521static uint32_t
7522lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7523{
7524 uint32_t intr_mode = LPFC_INTR_ERROR;
7525 int retval;
7526
7527 if (cfg_mode == 2) {
7528 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
7529 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
7530 if (!retval) {
7531 /* Now, try to enable MSI-X interrupt mode */
7532 retval = lpfc_sli_enable_msix(phba);
7533 if (!retval) {
7534 /* Indicate initialization to MSI-X mode */
7535 phba->intr_type = MSIX;
7536 intr_mode = 2;
7537 }
7538 }
7539 }
7540
7541 /* Fallback to MSI if MSI-X initialization failed */
7542 if (cfg_mode >= 1 && phba->intr_type == NONE) {
7543 retval = lpfc_sli_enable_msi(phba);
7544 if (!retval) {
7545 /* Indicate initialization to MSI mode */
7546 phba->intr_type = MSI;
7547 intr_mode = 1;
7548 }
7549 }
7550
7551 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7552 if (phba->intr_type == NONE) {
7553 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7554 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7555 if (!retval) {
7556 /* Indicate initialization to INTx mode */
7557 phba->intr_type = INTx;
7558 intr_mode = 0;
7559 }
7560 }
7561 return intr_mode;
7562}
7563
7564/**
7565 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
7566 * @phba: pointer to lpfc hba data structure.
7567 *
7568 * This routine is invoked to disable device interrupt and disassociate the
7569 * driver's interrupt handler(s) from interrupt vector(s) to device with
7570 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
7571 * release the interrupt vector(s) for the message signaled interrupt.
7572 **/
7573static void
7574lpfc_sli_disable_intr(struct lpfc_hba *phba)
7575{
7576 /* Disable the currently initialized interrupt mode */
7577 if (phba->intr_type == MSIX)
7578 lpfc_sli_disable_msix(phba);
7579 else if (phba->intr_type == MSI)
7580 lpfc_sli_disable_msi(phba);
7581 else if (phba->intr_type == INTx)
7582 free_irq(phba->pcidev->irq, phba);
7583
7584 /* Reset interrupt management states */
7585 phba->intr_type = NONE;
7586 phba->sli.slistat.sli_intr = 0;
7587
7588 return;
7589}
7590
7591/**
7592 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
7593 * @phba: pointer to lpfc hba data structure.
7594 *
7595 * This routine is invoked to enable the MSI-X interrupt vectors to device
7596 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
7597 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
7598 * enables either all or nothing, depending on the current availability of
7599 * PCI vector resources. The device driver is responsible for calling the
7600 * individual request_irq() to register each MSI-X vector with a interrupt
7601 * handler, which is done in this function. Note that later when device is
7602 * unloading, the driver should always call free_irq() on all MSI-X vectors
7603 * it has done request_irq() on before calling pci_disable_msix(). Failure
7604 * to do so results in a BUG_ON() and a device will be left with MSI-X
7605 * enabled and leaks its vectors.
7606 *
7607 * Return codes
af901ca1 7608 * 0 - successful
da0436e9
JS		 7609 * other values - error
7610 **/
7611static int
7612lpfc_sli4_enable_msix(struct lpfc_hba *phba)
7613{
75baf696 7614 int vectors, rc, index;
da0436e9
JS		 7615
7616 /* Set up MSI-X multi-message vectors */
7617 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
7618 phba->sli4_hba.msix_entries[index].entry = index;
7619
7620 /* Configure MSI-X capability structure */
75baf696
JS		 7621 vectors = phba->sli4_hba.cfg_eqn;
7622enable_msix_vectors:
da0436e9 7623 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
75baf696
JS		 7624 vectors);
7625 if (rc > 1) {
7626 vectors = rc;
7627 goto enable_msix_vectors;
7628 } else if (rc) {
da0436e9
JS		 7629 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7630 "0484 PCI enable MSI-X failed (%d)\n", rc);
7631 goto msi_fail_out;
7632 }
75baf696 7633
da0436e9 7634 /* Log MSI-X vector assignment */
75baf696 7635 for (index = 0; index < vectors; index++)
da0436e9
JS		 7636 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7637 "0489 MSI-X entry[%d]: vector=x%x "
7638 "message=%d\n", index,
7639 phba->sli4_hba.msix_entries[index].vector,
7640 phba->sli4_hba.msix_entries[index].entry);
7641 /*
7642 * Assign MSI-X vectors to interrupt handlers
7643 */
0558056c
JS		 7644 if (vectors > 1)
7645 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7646 &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
7647 LPFC_SP_DRIVER_HANDLER_NAME, phba);
7648 else
7649 /* All Interrupts need to be handled by one EQ */
7650 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7651 &lpfc_sli4_intr_handler, IRQF_SHARED,
7652 LPFC_DRIVER_NAME, phba);
da0436e9
JS		 7653 if (rc) {
7654 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7655 "0485 MSI-X slow-path request_irq failed "
7656 "(%d)\n", rc);
7657 goto msi_fail_out;
7658 }
7659
7660 /* The rest of the vector(s) are associated to fast-path handler(s) */
75baf696 7661 for (index = 1; index < vectors; index++) {
da0436e9
JS		 7662 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
7663 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
7664 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
7665 &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
7666 LPFC_FP_DRIVER_HANDLER_NAME,
7667 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7668 if (rc) {
7669 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7670 "0486 MSI-X fast-path (%d) "
7671 "request_irq failed (%d)\n", index, rc);
7672 goto cfg_fail_out;
7673 }
7674 }
75baf696 7675 phba->sli4_hba.msix_vec_nr = vectors;
da0436e9
JS		 7676
7677 return rc;
7678
7679cfg_fail_out:
7680 /* free the irq already requested */
7681 for (--index; index >= 1; index--)
7682 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
7683 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7684
7685 /* free the irq already requested */
7686 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7687
7688msi_fail_out:
7689 /* Unconfigure MSI-X capability structure */
7690 pci_disable_msix(phba->pcidev);
7691 return rc;
7692}
7693
7694/**
7695 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7696 * @phba: pointer to lpfc hba data structure.
7697 *
7698 * This routine is invoked to release the MSI-X vectors and then disable the
7699 * MSI-X interrupt mode to device with SLI-4 interface spec.
7700 **/
7701static void
7702lpfc_sli4_disable_msix(struct lpfc_hba *phba)
7703{
7704 int index;
7705
7706 /* Free up MSI-X multi-message vectors */
7707 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7708
75baf696 7709 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
da0436e9
JS		 7710 free_irq(phba->sli4_hba.msix_entries[index].vector,
7711 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
75baf696 7712
da0436e9
JS		 7713 /* Disable MSI-X */
7714 pci_disable_msix(phba->pcidev);
7715
7716 return;
7717}
7718
7719/**
7720 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7721 * @phba: pointer to lpfc hba data structure.
7722 *
7723 * This routine is invoked to enable the MSI interrupt mode to device with
7724 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7725 * to enable the MSI vector. The device driver is responsible for calling
7726 * the request_irq() to register MSI vector with a interrupt the handler,
7727 * which is done in this function.
7728 *
7729 * Return codes
af901ca1 7730 * 0 - successful
da0436e9
JS		 7731 * other values - error
7732 **/
7733static int
7734lpfc_sli4_enable_msi(struct lpfc_hba *phba)
7735{
7736 int rc, index;
7737
7738 rc = pci_enable_msi(phba->pcidev);
7739 if (!rc)
7740 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7741 "0487 PCI enable MSI mode success.\n");
7742 else {
7743 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7744 "0488 PCI enable MSI mode failed (%d)\n", rc);
7745 return rc;
7746 }
7747
7748 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7749 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7750 if (rc) {
7751 pci_disable_msi(phba->pcidev);
7752 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7753 "0490 MSI request_irq failed (%d)\n", rc);
75baf696 7754 return rc;
da0436e9
JS		 7755 }
7756
7757 for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
7758 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7759 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7760 }
7761
75baf696 7762 return 0;
da0436e9
JS		 7763}
7764
7765/**
7766 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7767 * @phba: pointer to lpfc hba data structure.
7768 *
7769 * This routine is invoked to disable the MSI interrupt mode to device with
7770 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7771 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7772 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7773 * its vector.
7774 **/
7775static void
7776lpfc_sli4_disable_msi(struct lpfc_hba *phba)
7777{
7778 free_irq(phba->pcidev->irq, phba);
7779 pci_disable_msi(phba->pcidev);
7780 return;
7781}
7782
7783/**
7784 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7785 * @phba: pointer to lpfc hba data structure.
7786 *
7787 * This routine is invoked to enable device interrupt and associate driver's
7788 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7789 * interface spec. Depends on the interrupt mode configured to the driver,
7790 * the driver will try to fallback from the configured interrupt mode to an
7791 * interrupt mode which is supported by the platform, kernel, and device in
7792 * the order of:
7793 * MSI-X -> MSI -> IRQ.
7794 *
7795 * Return codes
af901ca1 7796 * 0 - successful
da0436e9
JS		 7797 * other values - error
7798 **/
7799static uint32_t
7800lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7801{
7802 uint32_t intr_mode = LPFC_INTR_ERROR;
7803 int retval, index;
7804
7805 if (cfg_mode == 2) {
7806 /* Preparation before conf_msi mbox cmd */
7807 retval = 0;
7808 if (!retval) {
7809 /* Now, try to enable MSI-X interrupt mode */
7810 retval = lpfc_sli4_enable_msix(phba);
7811 if (!retval) {
7812 /* Indicate initialization to MSI-X mode */
7813 phba->intr_type = MSIX;
7814 intr_mode = 2;
7815 }
7816 }
7817 }
7818
7819 /* Fallback to MSI if MSI-X initialization failed */
7820 if (cfg_mode >= 1 && phba->intr_type == NONE) {
7821 retval = lpfc_sli4_enable_msi(phba);
7822 if (!retval) {
7823 /* Indicate initialization to MSI mode */
7824 phba->intr_type = MSI;
7825 intr_mode = 1;
7826 }
7827 }
7828
7829 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7830 if (phba->intr_type == NONE) {
7831 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7832 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7833 if (!retval) {
7834 /* Indicate initialization to INTx mode */
7835 phba->intr_type = INTx;
7836 intr_mode = 0;
7837 for (index = 0; index < phba->cfg_fcp_eq_count;
7838 index++) {
7839 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7840 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7841 }
7842 }
7843 }
7844 return intr_mode;
7845}
7846
7847/**
7848 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7849 * @phba: pointer to lpfc hba data structure.
7850 *
7851 * This routine is invoked to disable device interrupt and disassociate
7852 * the driver's interrupt handler(s) from interrupt vector(s) to device
7853 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7854 * will release the interrupt vector(s) for the message signaled interrupt.
7855 **/
7856static void
7857lpfc_sli4_disable_intr(struct lpfc_hba *phba)
7858{
7859 /* Disable the currently initialized interrupt mode */
7860 if (phba->intr_type == MSIX)
7861 lpfc_sli4_disable_msix(phba);
7862 else if (phba->intr_type == MSI)
7863 lpfc_sli4_disable_msi(phba);
7864 else if (phba->intr_type == INTx)
7865 free_irq(phba->pcidev->irq, phba);
7866
7867 /* Reset interrupt management states */
7868 phba->intr_type = NONE;
7869 phba->sli.slistat.sli_intr = 0;
7870
7871 return;
7872}
7873
7874/**
7875 * lpfc_unset_hba - Unset SLI3 hba device initialization
7876 * @phba: pointer to lpfc hba data structure.
7877 *
7878 * This routine is invoked to unset the HBA device initialization steps to
7879 * a device with SLI-3 interface spec.
7880 **/
7881static void
7882lpfc_unset_hba(struct lpfc_hba *phba)
7883{
7884 struct lpfc_vport *vport = phba->pport;
7885 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7886
7887 spin_lock_irq(shost->host_lock);
7888 vport->load_flag |= FC_UNLOADING;
7889 spin_unlock_irq(shost->host_lock);
7890
7891 lpfc_stop_hba_timers(phba);
7892
7893 phba->pport->work_port_events = 0;
7894
7895 lpfc_sli_hba_down(phba);
7896
7897 lpfc_sli_brdrestart(phba);
7898
7899 lpfc_sli_disable_intr(phba);
7900
7901 return;
7902}
7903
7904/**
7905 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7906 * @phba: pointer to lpfc hba data structure.
7907 *
7908 * This routine is invoked to unset the HBA device initialization steps to
7909 * a device with SLI-4 interface spec.
7910 **/
7911static void
7912lpfc_sli4_unset_hba(struct lpfc_hba *phba)
7913{
7914 struct lpfc_vport *vport = phba->pport;
7915 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7916
7917 spin_lock_irq(shost->host_lock);
7918 vport->load_flag |= FC_UNLOADING;
7919 spin_unlock_irq(shost->host_lock);
7920
7921 phba->pport->work_port_events = 0;
7922
3677a3a7
JS		 7923 /* Stop the SLI4 device port */
7924 lpfc_stop_port(phba);
da0436e9
JS		 7925
7926 lpfc_sli4_disable_intr(phba);
7927
3677a3a7
JS		 7928 /* Reset SLI4 HBA FCoE function */
7929 lpfc_pci_function_reset(phba);
7930
da0436e9
JS		 7931 return;
7932}
7933
5af5eee7
JS		 7934/**
7935 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
7936 * @phba: Pointer to HBA context object.
7937 *
7938 * This function is called in the SLI4 code path to wait for completion
7939 * of device's XRIs exchange busy. It will check the XRI exchange busy
7940 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
7941 * that, it will check the XRI exchange busy on outstanding FCP and ELS
7942 * I/Os every 30 seconds, log error message, and wait forever. Only when
7943 * all XRI exchange busy complete, the driver unload shall proceed with
7944 * invoking the function reset ioctl mailbox command to the CNA and the
7945 * the rest of the driver unload resource release.
7946 **/
7947static void
7948lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
7949{
7950 int wait_time = 0;
7951 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
7952 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7953
7954 while (!fcp_xri_cmpl || !els_xri_cmpl) {
7955 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
7956 if (!fcp_xri_cmpl)
7957 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7958 "2877 FCP XRI exchange busy "
7959 "wait time: %d seconds.\n",
7960 wait_time/1000);
7961 if (!els_xri_cmpl)
7962 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7963 "2878 ELS XRI exchange busy "
7964 "wait time: %d seconds.\n",
7965 wait_time/1000);
7966 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
7967 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
7968 } else {
7969 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
7970 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
7971 }
7972 fcp_xri_cmpl =
7973 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
7974 els_xri_cmpl =
7975 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7976 }
7977}
7978
da0436e9
JS		 7979/**
7980 * lpfc_sli4_hba_unset - Unset the fcoe hba
7981 * @phba: Pointer to HBA context object.
7982 *
7983 * This function is called in the SLI4 code path to reset the HBA's FCoE
7984 * function. The caller is not required to hold any lock. This routine
7985 * issues PCI function reset mailbox command to reset the FCoE function.
7986 * At the end of the function, it calls lpfc_hba_down_post function to
7987 * free any pending commands.
7988 **/
7989static void
7990lpfc_sli4_hba_unset(struct lpfc_hba *phba)
7991{
7992 int wait_cnt = 0;
7993 LPFC_MBOXQ_t *mboxq;
912e3acd 7994 struct pci_dev *pdev = phba->pcidev;
da0436e9
JS		 7995
7996 lpfc_stop_hba_timers(phba);
7997 phba->sli4_hba.intr_enable = 0;
7998
7999 /*
8000 * Gracefully wait out the potential current outstanding asynchronous
8001 * mailbox command.
8002 */
8003
8004 /* First, block any pending async mailbox command from posted */
8005 spin_lock_irq(&phba->hbalock);
8006 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8007 spin_unlock_irq(&phba->hbalock);
8008 /* Now, trying to wait it out if we can */
8009 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8010 msleep(10);
8011 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
8012 break;
8013 }
8014 /* Forcefully release the outstanding mailbox command if timed out */
8015 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8016 spin_lock_irq(&phba->hbalock);
8017 mboxq = phba->sli.mbox_active;
8018 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8019 __lpfc_mbox_cmpl_put(phba, mboxq);
8020 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8021 phba->sli.mbox_active = NULL;
8022 spin_unlock_irq(&phba->hbalock);
8023 }
8024
5af5eee7
JS		 8025 /* Abort all iocbs associated with the hba */
8026 lpfc_sli_hba_iocb_abort(phba);
8027
8028 /* Wait for completion of device XRI exchange busy */
8029 lpfc_sli4_xri_exchange_busy_wait(phba);
8030
da0436e9
JS		 8031 /* Disable PCI subsystem interrupt */
8032 lpfc_sli4_disable_intr(phba);
8033
912e3acd
JS		 8034 /* Disable SR-IOV if enabled */
8035 if (phba->cfg_sriov_nr_virtfn)
8036 pci_disable_sriov(pdev);
8037
da0436e9
JS		 8038 /* Stop kthread signal shall trigger work_done one more time */
8039 kthread_stop(phba->worker_thread);
8040
3677a3a7
JS		 8041 /* Reset SLI4 HBA FCoE function */
8042 lpfc_pci_function_reset(phba);
8043
da0436e9
JS		 8044 /* Stop the SLI4 device port */
8045 phba->pport->work_port_events = 0;
8046}
8047
28baac74
JS		 8048 /**
8049 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
8050 * @phba: Pointer to HBA context object.
8051 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8052 *
8053 * This function is called in the SLI4 code path to read the port's
8054 * sli4 capabilities.
8055 *
8056 * This function may be be called from any context that can block-wait
8057 * for the completion. The expectation is that this routine is called
8058 * typically from probe_one or from the online routine.
8059 **/
8060int
8061lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8062{
8063 int rc;
8064 struct lpfc_mqe *mqe;
8065 struct lpfc_pc_sli4_params *sli4_params;
8066 uint32_t mbox_tmo;
8067
8068 rc = 0;
8069 mqe = &mboxq->u.mqe;
8070
8071 /* Read the port's SLI4 Parameters port capabilities */
fedd3b7b 8072 lpfc_pc_sli4_params(mboxq);
28baac74
JS		 8073 if (!phba->sli4_hba.intr_enable)
8074 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8075 else {
8076 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES);
8077 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8078 }
8079
8080 if (unlikely(rc))
8081 return 1;
8082
8083 sli4_params = &phba->sli4_hba.pc_sli4_params;
8084 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
8085 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
8086 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
8087 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
8088 &mqe->un.sli4_params);
8089 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
8090 &mqe->un.sli4_params);
8091 sli4_params->proto_types = mqe->un.sli4_params.word3;
8092 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
8093 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
8094 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
8095 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
8096 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
8097 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
8098 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
8099 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
8100 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
8101 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
8102 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
8103 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
8104 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
8105 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
8106 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
8107 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
8108 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
8109 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
8110 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
8111 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
0558056c
JS		 8112
8113 /* Make sure that sge_supp_len can be handled by the driver */
8114 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8115 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8116
28baac74
JS		 8117 return rc;
8118}
8119
fedd3b7b
JS		 8120/**
8121 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
8122 * @phba: Pointer to HBA context object.
8123 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8124 *
8125 * This function is called in the SLI4 code path to read the port's
8126 * sli4 capabilities.
8127 *
8128 * This function may be be called from any context that can block-wait
8129 * for the completion. The expectation is that this routine is called
8130 * typically from probe_one or from the online routine.
8131 **/
8132int
8133lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8134{
8135 int rc;
8136 struct lpfc_mqe *mqe = &mboxq->u.mqe;
8137 struct lpfc_pc_sli4_params *sli4_params;
8138 int length;
8139 struct lpfc_sli4_parameters *mbx_sli4_parameters;
8140
6d368e53
JS		 8141 /*
8142 * By default, the driver assumes the SLI4 port requires RPI
8143 * header postings. The SLI4_PARAM response will correct this
8144 * assumption.
8145 */
8146 phba->sli4_hba.rpi_hdrs_in_use = 1;
8147
fedd3b7b
JS		 8148 /* Read the port's SLI4 Config Parameters */
8149 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
8150 sizeof(struct lpfc_sli4_cfg_mhdr));
8151 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8152 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
8153 length, LPFC_SLI4_MBX_EMBED);
8154 if (!phba->sli4_hba.intr_enable)
8155 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8156 else
8157 rc = lpfc_sli_issue_mbox_wait(phba, mboxq,
8158 lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG));
8159 if (unlikely(rc))
8160 return rc;
8161 sli4_params = &phba->sli4_hba.pc_sli4_params;
8162 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
8163 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
8164 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
8165 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
8166 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
8167 mbx_sli4_parameters);
8168 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
8169 mbx_sli4_parameters);
8170 if (bf_get(cfg_phwq, mbx_sli4_parameters))
8171 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
8172 else
8173 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
8174 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
8175 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
8176 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
8177 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
8178 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
8179 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
8180 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
8181 mbx_sli4_parameters);
8182 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
8183 mbx_sli4_parameters);
6d368e53
JS		 8184 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
8185 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
0558056c
JS		 8186
8187 /* Make sure that sge_supp_len can be handled by the driver */
8188 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8189 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8190
fedd3b7b
JS		 8191 return 0;
8192}
8193
da0436e9
JS		 8194/**
8195 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
8196 * @pdev: pointer to PCI device
8197 * @pid: pointer to PCI device identifier
8198 *
8199 * This routine is to be called to attach a device with SLI-3 interface spec
8200 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8201 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8202 * information of the device and driver to see if the driver state that it can
8203 * support this kind of device. If the match is successful, the driver core
8204 * invokes this routine. If this routine determines it can claim the HBA, it
8205 * does all the initialization that it needs to do to handle the HBA properly.
8206 *
8207 * Return code
8208 * 0 - driver can claim the device
8209 * negative value - driver can not claim the device
8210 **/
8211static int __devinit
8212lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
8213{
8214 struct lpfc_hba *phba;
8215 struct lpfc_vport *vport = NULL;
6669f9bb 8216 struct Scsi_Host *shost = NULL;
da0436e9
JS		 8217 int error;
8218 uint32_t cfg_mode, intr_mode;
8219
8220 /* Allocate memory for HBA structure */
8221 phba = lpfc_hba_alloc(pdev);
8222 if (!phba)
8223 return -ENOMEM;
8224
8225 /* Perform generic PCI device enabling operation */
8226 error = lpfc_enable_pci_dev(phba);
8227 if (error) {
8228 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8229 "1401 Failed to enable pci device.\n");
8230 goto out_free_phba;
8231 }
8232
8233 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
8234 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
8235 if (error)
8236 goto out_disable_pci_dev;
8237
8238 /* Set up SLI-3 specific device PCI memory space */
8239 error = lpfc_sli_pci_mem_setup(phba);
8240 if (error) {
8241 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8242 "1402 Failed to set up pci memory space.\n");
8243 goto out_disable_pci_dev;
8244 }
8245
8246 /* Set up phase-1 common device driver resources */
8247 error = lpfc_setup_driver_resource_phase1(phba);
8248 if (error) {
8249 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8250 "1403 Failed to set up driver resource.\n");
8251 goto out_unset_pci_mem_s3;
8252 }
8253
8254 /* Set up SLI-3 specific device driver resources */
8255 error = lpfc_sli_driver_resource_setup(phba);
8256 if (error) {
8257 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8258 "1404 Failed to set up driver resource.\n");
8259 goto out_unset_pci_mem_s3;
8260 }
8261
8262 /* Initialize and populate the iocb list per host */
8263 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
8264 if (error) {
8265 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8266 "1405 Failed to initialize iocb list.\n");
8267 goto out_unset_driver_resource_s3;
8268 }
8269
8270 /* Set up common device driver resources */
8271 error = lpfc_setup_driver_resource_phase2(phba);
8272 if (error) {
8273 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8274 "1406 Failed to set up driver resource.\n");
8275 goto out_free_iocb_list;
8276 }
8277
8278 /* Create SCSI host to the physical port */
8279 error = lpfc_create_shost(phba);
8280 if (error) {
8281 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8282 "1407 Failed to create scsi host.\n");
8283 goto out_unset_driver_resource;
8284 }
8285
8286 /* Configure sysfs attributes */
8287 vport = phba->pport;
8288 error = lpfc_alloc_sysfs_attr(vport);
8289 if (error) {
8290 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8291 "1476 Failed to allocate sysfs attr\n");
8292 goto out_destroy_shost;
8293 }
8294
6669f9bb 8295 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
da0436e9
JS		 8296 /* Now, trying to enable interrupt and bring up the device */
8297 cfg_mode = phba->cfg_use_msi;
8298 while (true) {
8299 /* Put device to a known state before enabling interrupt */
8300 lpfc_stop_port(phba);
8301 /* Configure and enable interrupt */
8302 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
8303 if (intr_mode == LPFC_INTR_ERROR) {
8304 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8305 "0431 Failed to enable interrupt.\n");
8306 error = -ENODEV;
8307 goto out_free_sysfs_attr;
8308 }
8309 /* SLI-3 HBA setup */
8310 if (lpfc_sli_hba_setup(phba)) {
8311 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8312 "1477 Failed to set up hba\n");
8313 error = -ENODEV;
8314 goto out_remove_device;
8315 }
8316
8317 /* Wait 50ms for the interrupts of previous mailbox commands */
8318 msleep(50);
8319 /* Check active interrupts on message signaled interrupts */
8320 if (intr_mode == 0 ||
8321 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
8322 /* Log the current active interrupt mode */
8323 phba->intr_mode = intr_mode;
8324 lpfc_log_intr_mode(phba, intr_mode);
8325 break;
8326 } else {
8327 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8328 "0447 Configure interrupt mode (%d) "
8329 "failed active interrupt test.\n",
8330 intr_mode);
8331 /* Disable the current interrupt mode */
8332 lpfc_sli_disable_intr(phba);
8333 /* Try next level of interrupt mode */
8334 cfg_mode = --intr_mode;
8335 }
8336 }
8337
8338 /* Perform post initialization setup */
8339 lpfc_post_init_setup(phba);
8340
8341 /* Check if there are static vports to be created. */
8342 lpfc_create_static_vport(phba);
8343
8344 return 0;
8345
8346out_remove_device:
8347 lpfc_unset_hba(phba);
8348out_free_sysfs_attr:
8349 lpfc_free_sysfs_attr(vport);
8350out_destroy_shost:
8351 lpfc_destroy_shost(phba);
8352out_unset_driver_resource:
8353 lpfc_unset_driver_resource_phase2(phba);
8354out_free_iocb_list:
8355 lpfc_free_iocb_list(phba);
8356out_unset_driver_resource_s3:
8357 lpfc_sli_driver_resource_unset(phba);
8358out_unset_pci_mem_s3:
8359 lpfc_sli_pci_mem_unset(phba);
8360out_disable_pci_dev:
8361 lpfc_disable_pci_dev(phba);
6669f9bb
JS		 8362 if (shost)
8363 scsi_host_put(shost);
da0436e9
JS		 8364out_free_phba:
8365 lpfc_hba_free(phba);
8366 return error;
8367}
8368
8369/**
8370 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8371 * @pdev: pointer to PCI device
8372 *
8373 * This routine is to be called to disattach a device with SLI-3 interface
8374 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8375 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8376 * device to be removed from the PCI subsystem properly.
8377 **/
8378static void __devexit
8379lpfc_pci_remove_one_s3(struct pci_dev *pdev)
8380{
8381 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8382 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8383 struct lpfc_vport **vports;
8384 struct lpfc_hba *phba = vport->phba;
8385 int i;
8386 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
8387
8388 spin_lock_irq(&phba->hbalock);
8389 vport->load_flag |= FC_UNLOADING;
8390 spin_unlock_irq(&phba->hbalock);
8391
8392 lpfc_free_sysfs_attr(vport);
8393
8394 /* Release all the vports against this physical port */
8395 vports = lpfc_create_vport_work_array(phba);
8396 if (vports != NULL)
8397 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8398 fc_vport_terminate(vports[i]->fc_vport);
8399 lpfc_destroy_vport_work_array(phba, vports);
8400
8401 /* Remove FC host and then SCSI host with the physical port */
8402 fc_remove_host(shost);
8403 scsi_remove_host(shost);
8404 lpfc_cleanup(vport);
8405
8406 /*
8407 * Bring down the SLI Layer. This step disable all interrupts,
8408 * clears the rings, discards all mailbox commands, and resets
8409 * the HBA.
8410 */
8411
48e34d0f 8412 /* HBA interrupt will be disabled after this call */
da0436e9
JS		 8413 lpfc_sli_hba_down(phba);
8414 /* Stop kthread signal shall trigger work_done one more time */
8415 kthread_stop(phba->worker_thread);
8416 /* Final cleanup of txcmplq and reset the HBA */
8417 lpfc_sli_brdrestart(phba);
8418
8419 lpfc_stop_hba_timers(phba);
8420 spin_lock_irq(&phba->hbalock);
8421 list_del_init(&vport->listentry);
8422 spin_unlock_irq(&phba->hbalock);
8423
8424 lpfc_debugfs_terminate(vport);
8425
912e3acd
JS		 8426 /* Disable SR-IOV if enabled */
8427 if (phba->cfg_sriov_nr_virtfn)
8428 pci_disable_sriov(pdev);
8429
da0436e9
JS		 8430 /* Disable interrupt */
8431 lpfc_sli_disable_intr(phba);
8432
8433 pci_set_drvdata(pdev, NULL);
8434 scsi_host_put(shost);
8435
8436 /*
8437 * Call scsi_free before mem_free since scsi bufs are released to their
8438 * corresponding pools here.
8439 */
8440 lpfc_scsi_free(phba);
8441 lpfc_mem_free_all(phba);
8442
8443 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
8444 phba->hbqslimp.virt, phba->hbqslimp.phys);
8445
8446 /* Free resources associated with SLI2 interface */
8447 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
8448 phba->slim2p.virt, phba->slim2p.phys);
8449
8450 /* unmap adapter SLIM and Control Registers */
8451 iounmap(phba->ctrl_regs_memmap_p);
8452 iounmap(phba->slim_memmap_p);
8453
8454 lpfc_hba_free(phba);
8455
8456 pci_release_selected_regions(pdev, bars);
8457 pci_disable_device(pdev);
8458}
8459
8460/**
8461 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
8462 * @pdev: pointer to PCI device
8463 * @msg: power management message
8464 *
8465 * This routine is to be called from the kernel's PCI subsystem to support
8466 * system Power Management (PM) to device with SLI-3 interface spec. When
8467 * PM invokes this method, it quiesces the device by stopping the driver's
8468 * worker thread for the device, turning off device's interrupt and DMA,
8469 * and bring the device offline. Note that as the driver implements the
8470 * minimum PM requirements to a power-aware driver's PM support for the
8471 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8472 * to the suspend() method call will be treated as SUSPEND and the driver will
8473 * fully reinitialize its device during resume() method call, the driver will
8474 * set device to PCI_D3hot state in PCI config space instead of setting it
8475 * according to the @msg provided by the PM.
8476 *
8477 * Return code
8478 * 0 - driver suspended the device
8479 * Error otherwise
8480 **/
8481static int
8482lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
8483{
8484 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8485 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8486
8487 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8488 "0473 PCI device Power Management suspend.\n");
8489
8490 /* Bring down the device */
8491 lpfc_offline_prep(phba);
8492 lpfc_offline(phba);
8493 kthread_stop(phba->worker_thread);
8494
8495 /* Disable interrupt from device */
8496 lpfc_sli_disable_intr(phba);
8497
8498 /* Save device state to PCI config space */
8499 pci_save_state(pdev);
8500 pci_set_power_state(pdev, PCI_D3hot);
8501
8502 return 0;
8503}
8504
8505/**
8506 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
8507 * @pdev: pointer to PCI device
8508 *
8509 * This routine is to be called from the kernel's PCI subsystem to support
8510 * system Power Management (PM) to device with SLI-3 interface spec. When PM
8511 * invokes this method, it restores the device's PCI config space state and
8512 * fully reinitializes the device and brings it online. Note that as the
8513 * driver implements the minimum PM requirements to a power-aware driver's
8514 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
8515 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
8516 * driver will fully reinitialize its device during resume() method call,
8517 * the device will be set to PCI_D0 directly in PCI config space before
8518 * restoring the state.
8519 *
8520 * Return code
8521 * 0 - driver suspended the device
8522 * Error otherwise
8523 **/
8524static int
8525lpfc_pci_resume_one_s3(struct pci_dev *pdev)
8526{
8527 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8528 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8529 uint32_t intr_mode;
8530 int error;
8531
8532 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8533 "0452 PCI device Power Management resume.\n");
8534
8535 /* Restore device state from PCI config space */
8536 pci_set_power_state(pdev, PCI_D0);
8537 pci_restore_state(pdev);
0d878419 8538
1dfb5a47
JS		 8539 /*
8540 * As the new kernel behavior of pci_restore_state() API call clears
8541 * device saved_state flag, need to save the restored state again.
8542 */
8543 pci_save_state(pdev);
8544
da0436e9
JS		 8545 if (pdev->is_busmaster)
8546 pci_set_master(pdev);
8547
8548 /* Startup the kernel thread for this host adapter. */
8549 phba->worker_thread = kthread_run(lpfc_do_work, phba,
8550 "lpfc_worker_%d", phba->brd_no);
8551 if (IS_ERR(phba->worker_thread)) {
8552 error = PTR_ERR(phba->worker_thread);
8553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8554 "0434 PM resume failed to start worker "
8555 "thread: error=x%x.\n", error);
8556 return error;
8557 }
8558
8559 /* Configure and enable interrupt */
8560 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8561 if (intr_mode == LPFC_INTR_ERROR) {
8562 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8563 "0430 PM resume Failed to enable interrupt\n");
8564 return -EIO;
8565 } else
8566 phba->intr_mode = intr_mode;
8567
8568 /* Restart HBA and bring it online */
8569 lpfc_sli_brdrestart(phba);
8570 lpfc_online(phba);
8571
8572 /* Log the current active interrupt mode */
8573 lpfc_log_intr_mode(phba, phba->intr_mode);
8574
8575 return 0;
8576}
8577
891478a2
JS		 8578/**
8579 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
8580 * @phba: pointer to lpfc hba data structure.
8581 *
8582 * This routine is called to prepare the SLI3 device for PCI slot recover. It
e2af0d2e 8583 * aborts all the outstanding SCSI I/Os to the pci device.
891478a2
JS		 8584 **/
8585static void
8586lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
8587{
e2af0d2e
JS		 8588 struct lpfc_sli *psli = &phba->sli;
8589 struct lpfc_sli_ring *pring;
8590
891478a2
JS		 8591 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8592 "2723 PCI channel I/O abort preparing for recovery\n");
e2af0d2e
JS		 8593
8594 /*
8595 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8596 * and let the SCSI mid-layer to retry them to recover.
8597 */
8598 pring = &psli->ring[psli->fcp_ring];
8599 lpfc_sli_abort_iocb_ring(phba, pring);
891478a2
JS		 8600}
8601
0d878419
JS		 8602/**
8603 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
8604 * @phba: pointer to lpfc hba data structure.
8605 *
8606 * This routine is called to prepare the SLI3 device for PCI slot reset. It
8607 * disables the device interrupt and pci device, and aborts the internal FCP
8608 * pending I/Os.
8609 **/
8610static void
8611lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
8612{
0d878419 8613 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
891478a2 8614 "2710 PCI channel disable preparing for reset\n");
e2af0d2e 8615
75baf696
JS		 8616 /* Block any management I/Os to the device */
8617 lpfc_block_mgmt_io(phba);
8618
e2af0d2e
JS		 8619 /* Block all SCSI devices' I/Os on the host */
8620 lpfc_scsi_dev_block(phba);
8621
8622 /* stop all timers */
8623 lpfc_stop_hba_timers(phba);
8624
0d878419
JS		 8625 /* Disable interrupt and pci device */
8626 lpfc_sli_disable_intr(phba);
8627 pci_disable_device(phba->pcidev);
75baf696 8628
e2af0d2e
JS		 8629 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8630 lpfc_sli_flush_fcp_rings(phba);
0d878419
JS		 8631}
8632
8633/**
8634 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
8635 * @phba: pointer to lpfc hba data structure.
8636 *
8637 * This routine is called to prepare the SLI3 device for PCI slot permanently
8638 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8639 * pending I/Os.
8640 **/
8641static void
75baf696 8642lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
0d878419
JS		 8643{
8644 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
891478a2 8645 "2711 PCI channel permanent disable for failure\n");
e2af0d2e
JS		 8646 /* Block all SCSI devices' I/Os on the host */
8647 lpfc_scsi_dev_block(phba);
8648
8649 /* stop all timers */
8650 lpfc_stop_hba_timers(phba);
8651
0d878419
JS		 8652 /* Clean up all driver's outstanding SCSI I/Os */
8653 lpfc_sli_flush_fcp_rings(phba);
8654}
8655
da0436e9
JS		 8656/**
8657 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
8658 * @pdev: pointer to PCI device.
8659 * @state: the current PCI connection state.
8660 *
8661 * This routine is called from the PCI subsystem for I/O error handling to
8662 * device with SLI-3 interface spec. This function is called by the PCI
8663 * subsystem after a PCI bus error affecting this device has been detected.
8664 * When this function is invoked, it will need to stop all the I/Os and
8665 * interrupt(s) to the device. Once that is done, it will return
8666 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
8667 * as desired.
8668 *
8669 * Return codes
0d878419 8670 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
da0436e9
JS		 8671 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8672 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8673 **/
8674static pci_ers_result_t
8675lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
8676{
8677 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8678 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
da0436e9 8679
0d878419
JS		 8680 switch (state) {
8681 case pci_channel_io_normal:
891478a2
JS		 8682 /* Non-fatal error, prepare for recovery */
8683 lpfc_sli_prep_dev_for_recover(phba);
0d878419
JS		 8684 return PCI_ERS_RESULT_CAN_RECOVER;
8685 case pci_channel_io_frozen:
8686 /* Fatal error, prepare for slot reset */
8687 lpfc_sli_prep_dev_for_reset(phba);
8688 return PCI_ERS_RESULT_NEED_RESET;
8689 case pci_channel_io_perm_failure:
8690 /* Permanent failure, prepare for device down */
75baf696 8691 lpfc_sli_prep_dev_for_perm_failure(phba);
da0436e9 8692 return PCI_ERS_RESULT_DISCONNECT;
0d878419
JS		 8693 default:
8694 /* Unknown state, prepare and request slot reset */
8695 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8696 "0472 Unknown PCI error state: x%x\n", state);
8697 lpfc_sli_prep_dev_for_reset(phba);
8698 return PCI_ERS_RESULT_NEED_RESET;
da0436e9 8699 }
da0436e9
JS		 8700}
8701
8702/**
8703 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
8704 * @pdev: pointer to PCI device.
8705 *
8706 * This routine is called from the PCI subsystem for error handling to
8707 * device with SLI-3 interface spec. This is called after PCI bus has been
8708 * reset to restart the PCI card from scratch, as if from a cold-boot.
8709 * During the PCI subsystem error recovery, after driver returns
8710 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8711 * recovery and then call this routine before calling the .resume method
8712 * to recover the device. This function will initialize the HBA device,
8713 * enable the interrupt, but it will just put the HBA to offline state
8714 * without passing any I/O traffic.
8715 *
8716 * Return codes
8717 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8718 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8719 */
8720static pci_ers_result_t
8721lpfc_io_slot_reset_s3(struct pci_dev *pdev)
8722{
8723 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8724 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8725 struct lpfc_sli *psli = &phba->sli;
8726 uint32_t intr_mode;
8727
8728 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
8729 if (pci_enable_device_mem(pdev)) {
8730 printk(KERN_ERR "lpfc: Cannot re-enable "
8731 "PCI device after reset.\n");
8732 return PCI_ERS_RESULT_DISCONNECT;
8733 }
8734
8735 pci_restore_state(pdev);
1dfb5a47
JS		 8736
8737 /*
8738 * As the new kernel behavior of pci_restore_state() API call clears
8739 * device saved_state flag, need to save the restored state again.
8740 */
8741 pci_save_state(pdev);
8742
da0436e9
JS		 8743 if (pdev->is_busmaster)
8744 pci_set_master(pdev);
8745
8746 spin_lock_irq(&phba->hbalock);
8747 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8748 spin_unlock_irq(&phba->hbalock);
8749
8750 /* Configure and enable interrupt */
8751 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8752 if (intr_mode == LPFC_INTR_ERROR) {
8753 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8754 "0427 Cannot re-enable interrupt after "
8755 "slot reset.\n");
8756 return PCI_ERS_RESULT_DISCONNECT;
8757 } else
8758 phba->intr_mode = intr_mode;
8759
75baf696
JS		 8760 /* Take device offline, it will perform cleanup */
8761 lpfc_offline_prep(phba);
da0436e9
JS		 8762 lpfc_offline(phba);
8763 lpfc_sli_brdrestart(phba);
8764
8765 /* Log the current active interrupt mode */
8766 lpfc_log_intr_mode(phba, phba->intr_mode);
8767
8768 return PCI_ERS_RESULT_RECOVERED;
8769}
8770
8771/**
8772 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
8773 * @pdev: pointer to PCI device
8774 *
8775 * This routine is called from the PCI subsystem for error handling to device
8776 * with SLI-3 interface spec. It is called when kernel error recovery tells
8777 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8778 * error recovery. After this call, traffic can start to flow from this device
8779 * again.
8780 */
8781static void
8782lpfc_io_resume_s3(struct pci_dev *pdev)
8783{
8784 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8785 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3772a991 8786
e2af0d2e 8787 /* Bring device online, it will be no-op for non-fatal error resume */
da0436e9 8788 lpfc_online(phba);
0d878419
JS		 8789
8790 /* Clean up Advanced Error Reporting (AER) if needed */
8791 if (phba->hba_flag & HBA_AER_ENABLED)
8792 pci_cleanup_aer_uncorrect_error_status(pdev);
da0436e9 8793}
3772a991 8794
da0436e9
JS		 8795/**
8796 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
8797 * @phba: pointer to lpfc hba data structure.
8798 *
8799 * returns the number of ELS/CT IOCBs to reserve
8800 **/
8801int
8802lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
8803{
8804 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
8805
f1126688
JS		 8806 if (phba->sli_rev == LPFC_SLI_REV4) {
8807 if (max_xri <= 100)
6a9c52cf 8808 return 10;
f1126688 8809 else if (max_xri <= 256)
6a9c52cf 8810 return 25;
f1126688 8811 else if (max_xri <= 512)
6a9c52cf 8812 return 50;
f1126688 8813 else if (max_xri <= 1024)
6a9c52cf 8814 return 100;
f1126688 8815 else
6a9c52cf 8816 return 150;
f1126688
JS		 8817 } else
8818 return 0;
3772a991
JS		 8819}
8820
52d52440
JS		 8821/**
8822 * lpfc_write_firmware - attempt to write a firmware image to the port
8823 * @phba: pointer to lpfc hba data structure.
8824 * @fw: pointer to firmware image returned from request_firmware.
8825 *
8826 * returns the number of bytes written if write is successful.
8827 * returns a negative error value if there were errors.
8828 * returns 0 if firmware matches currently active firmware on port.
8829 **/
8830int
8831lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw)
8832{
8833 char fwrev[32];
8834 struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data;
8835 struct list_head dma_buffer_list;
8836 int i, rc = 0;
8837 struct lpfc_dmabuf *dmabuf, *next;
8838 uint32_t offset = 0, temp_offset = 0;
8839
8840 INIT_LIST_HEAD(&dma_buffer_list);
8841 if ((image->magic_number != LPFC_GROUP_OJECT_MAGIC_NUM) ||
8842 (bf_get(lpfc_grp_hdr_file_type, image) != LPFC_FILE_TYPE_GROUP) ||
8843 (bf_get(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
8844 (image->size != fw->size)) {
8845 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8846 "3022 Invalid FW image found. "
8847 "Magic:%d Type:%x ID:%x\n",
8848 image->magic_number,
8849 bf_get(lpfc_grp_hdr_file_type, image),
8850 bf_get(lpfc_grp_hdr_id, image));
8851 return -EINVAL;
8852 }
8853 lpfc_decode_firmware_rev(phba, fwrev, 1);
8854 if (strncmp(fwrev, image->rev_name, strnlen(fwrev, 16))) {
8855 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8856 "3023 Updating Firmware. Current Version:%s "
8857 "New Version:%s\n",
8858 fwrev, image->rev_name);
8859 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
8860 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
8861 GFP_KERNEL);
8862 if (!dmabuf) {
8863 rc = -ENOMEM;
8864 goto out;
8865 }
8866 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
8867 SLI4_PAGE_SIZE,
8868 &dmabuf->phys,
8869 GFP_KERNEL);
8870 if (!dmabuf->virt) {
8871 kfree(dmabuf);
8872 rc = -ENOMEM;
8873 goto out;
8874 }
8875 list_add_tail(&dmabuf->list, &dma_buffer_list);
8876 }
8877 while (offset < fw->size) {
8878 temp_offset = offset;
8879 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
8880 if (offset + SLI4_PAGE_SIZE > fw->size) {
8881 temp_offset += fw->size - offset;
8882 memcpy(dmabuf->virt,
8883 fw->data + temp_offset,
8884 fw->size - offset);
8885 break;
8886 }
8887 temp_offset += SLI4_PAGE_SIZE;
8888 memcpy(dmabuf->virt, fw->data + temp_offset,
8889 SLI4_PAGE_SIZE);
8890 }
8891 rc = lpfc_wr_object(phba, &dma_buffer_list,
8892 (fw->size - offset), &offset);
8893 if (rc) {
8894 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8895 "3024 Firmware update failed. "
8896 "%d\n", rc);
8897 goto out;
8898 }
8899 }
8900 rc = offset;
8901 }
8902out:
8903 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
8904 list_del(&dmabuf->list);
8905 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
8906 dmabuf->virt, dmabuf->phys);
8907 kfree(dmabuf);
8908 }
8909 return rc;
8910}
8911
3772a991 8912/**
da0436e9 8913 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
3772a991
JS		 8914 * @pdev: pointer to PCI device
8915 * @pid: pointer to PCI device identifier
8916 *
da0436e9
JS		 8917 * This routine is called from the kernel's PCI subsystem to device with
8918 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
3772a991 8919 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
da0436e9
JS		 8920 * information of the device and driver to see if the driver state that it
8921 * can support this kind of device. If the match is successful, the driver
8922 * core invokes this routine. If this routine determines it can claim the HBA,
8923 * it does all the initialization that it needs to do to handle the HBA
8924 * properly.
3772a991
JS		 8925 *
8926 * Return code
8927 * 0 - driver can claim the device
8928 * negative value - driver can not claim the device
8929 **/
8930static int __devinit
da0436e9 8931lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
3772a991
JS		 8932{
8933 struct lpfc_hba *phba;
8934 struct lpfc_vport *vport = NULL;
6669f9bb 8935 struct Scsi_Host *shost = NULL;
3772a991
JS		 8936 int error;
8937 uint32_t cfg_mode, intr_mode;
da0436e9 8938 int mcnt;
0558056c
JS		 8939 int adjusted_fcp_eq_count;
8940 int fcp_qidx;
52d52440
JS		 8941 const struct firmware *fw;
8942 uint8_t file_name[16];
3772a991
JS		 8943
8944 /* Allocate memory for HBA structure */
8945 phba = lpfc_hba_alloc(pdev);
8946 if (!phba)
8947 return -ENOMEM;
8948
8949 /* Perform generic PCI device enabling operation */
8950 error = lpfc_enable_pci_dev(phba);
8951 if (error) {
8952 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 8953 "1409 Failed to enable pci device.\n");
3772a991
JS		 8954 goto out_free_phba;
8955 }
8956
da0436e9
JS		 8957 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
8958 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
3772a991
JS		 8959 if (error)
8960 goto out_disable_pci_dev;
8961
da0436e9
JS		 8962 /* Set up SLI-4 specific device PCI memory space */
8963 error = lpfc_sli4_pci_mem_setup(phba);
3772a991
JS		 8964 if (error) {
8965 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 8966 "1410 Failed to set up pci memory space.\n");
3772a991
JS		 8967 goto out_disable_pci_dev;
8968 }
8969
8970 /* Set up phase-1 common device driver resources */
8971 error = lpfc_setup_driver_resource_phase1(phba);
8972 if (error) {
8973 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 8974 "1411 Failed to set up driver resource.\n");
8975 goto out_unset_pci_mem_s4;
3772a991
JS		 8976 }
8977
da0436e9
JS		 8978 /* Set up SLI-4 Specific device driver resources */
8979 error = lpfc_sli4_driver_resource_setup(phba);
3772a991
JS		 8980 if (error) {
8981 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 8982 "1412 Failed to set up driver resource.\n");
8983 goto out_unset_pci_mem_s4;
3772a991
JS		 8984 }
8985
8986 /* Initialize and populate the iocb list per host */
2a9bf3d0
JS		 8987
8988 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8989 "2821 initialize iocb list %d.\n",
8990 phba->cfg_iocb_cnt*1024);
8991 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
8992
3772a991
JS		 8993 if (error) {
8994 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 8995 "1413 Failed to initialize iocb list.\n");
8996 goto out_unset_driver_resource_s4;
3772a991
JS		 8997 }
8998
19ca7609
JS		 8999 INIT_LIST_HEAD(&phba->active_rrq_list);
9000
3772a991
JS		 9001 /* Set up common device driver resources */
9002 error = lpfc_setup_driver_resource_phase2(phba);
9003 if (error) {
9004 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9005 "1414 Failed to set up driver resource.\n");
3772a991
JS		 9006 goto out_free_iocb_list;
9007 }
9008
9009 /* Create SCSI host to the physical port */
9010 error = lpfc_create_shost(phba);
9011 if (error) {
9012 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9013 "1415 Failed to create scsi host.\n");
3772a991
JS		 9014 goto out_unset_driver_resource;
9015 }
9399627f 9016
5b75da2f 9017 /* Configure sysfs attributes */
3772a991
JS		 9018 vport = phba->pport;
9019 error = lpfc_alloc_sysfs_attr(vport);
9020 if (error) {
9399627f 9021 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9022 "1416 Failed to allocate sysfs attr\n");
3772a991 9023 goto out_destroy_shost;
98c9ea5c 9024 }
875fbdfe 9025
6669f9bb 9026 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
3772a991 9027 /* Now, trying to enable interrupt and bring up the device */
5b75da2f
JS		 9028 cfg_mode = phba->cfg_use_msi;
9029 while (true) {
3772a991
JS		 9030 /* Put device to a known state before enabling interrupt */
9031 lpfc_stop_port(phba);
5b75da2f 9032 /* Configure and enable interrupt */
da0436e9 9033 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
5b75da2f
JS		 9034 if (intr_mode == LPFC_INTR_ERROR) {
9035 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9036 "0426 Failed to enable interrupt.\n");
3772a991 9037 error = -ENODEV;
5b75da2f
JS		 9038 goto out_free_sysfs_attr;
9039 }
0558056c 9040 /* Default to single EQ for non-MSI-X */
def9c7a9 9041 if (phba->intr_type != MSIX)
0558056c
JS		 9042 adjusted_fcp_eq_count = 0;
9043 else if (phba->sli4_hba.msix_vec_nr <
9044 phba->cfg_fcp_eq_count + 1)
9045 adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
9046 else
9047 adjusted_fcp_eq_count = phba->cfg_fcp_eq_count;
9048 /* Free unused EQs */
9049 for (fcp_qidx = adjusted_fcp_eq_count;
9050 fcp_qidx < phba->cfg_fcp_eq_count;
9051 fcp_qidx++) {
9052 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
9053 /* do not delete the first fcp_cq */
9054 if (fcp_qidx)
9055 lpfc_sli4_queue_free(
9056 phba->sli4_hba.fcp_cq[fcp_qidx]);
9057 }
9058 phba->cfg_fcp_eq_count = adjusted_fcp_eq_count;
da0436e9
JS		 9059 /* Set up SLI-4 HBA */
9060 if (lpfc_sli4_hba_setup(phba)) {
5b75da2f 9061 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9062 "1421 Failed to set up hba\n");
5b75da2f 9063 error = -ENODEV;
da0436e9 9064 goto out_disable_intr;
5b75da2f
JS		 9065 }
9066
da0436e9
JS		 9067 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
9068 if (intr_mode != 0)
9069 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
9070 LPFC_ACT_INTR_CNT);
9071
9072 /* Check active interrupts received only for MSI/MSI-X */
3772a991 9073 if (intr_mode == 0 ||
da0436e9 9074 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
5b75da2f
JS		 9075 /* Log the current active interrupt mode */
9076 phba->intr_mode = intr_mode;
9077 lpfc_log_intr_mode(phba, intr_mode);
9078 break;
5b75da2f 9079 }
da0436e9
JS		 9080 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9081 "0451 Configure interrupt mode (%d) "
9082 "failed active interrupt test.\n",
9083 intr_mode);
2fcee4bf
JS		 9084 /* Unset the previous SLI-4 HBA setup. */
9085 /*
9086 * TODO: Is this operation compatible with IF TYPE 2
9087 * devices? All port state is deleted and cleared.
9088 */
da0436e9
JS		 9089 lpfc_sli4_unset_hba(phba);
9090 /* Try next level of interrupt mode */
9091 cfg_mode = --intr_mode;
98c9ea5c 9092 }
858c9f6c 9093
3772a991
JS		 9094 /* Perform post initialization setup */
9095 lpfc_post_init_setup(phba);
dea3101e 9096
52d52440
JS		 9097 /* check for firmware upgrade or downgrade */
9098 snprintf(file_name, 16, "%s.grp", phba->ModelName);
9099 error = request_firmware(&fw, file_name, &phba->pcidev->dev);
9100 if (!error) {
9101 lpfc_write_firmware(phba, fw);
9102 release_firmware(fw);
9103 }
9104
1c6834a7
JS		 9105 /* Check if there are static vports to be created. */
9106 lpfc_create_static_vport(phba);
9107
dea3101e 9108 return 0;
9109
da0436e9
JS		 9110out_disable_intr:
9111 lpfc_sli4_disable_intr(phba);
5b75da2f
JS		 9112out_free_sysfs_attr:
9113 lpfc_free_sysfs_attr(vport);
3772a991
JS		 9114out_destroy_shost:
9115 lpfc_destroy_shost(phba);
9116out_unset_driver_resource:
9117 lpfc_unset_driver_resource_phase2(phba);
9118out_free_iocb_list:
9119 lpfc_free_iocb_list(phba);
da0436e9
JS		 9120out_unset_driver_resource_s4:
9121 lpfc_sli4_driver_resource_unset(phba);
9122out_unset_pci_mem_s4:
9123 lpfc_sli4_pci_mem_unset(phba);
3772a991
JS		 9124out_disable_pci_dev:
9125 lpfc_disable_pci_dev(phba);
6669f9bb
JS		 9126 if (shost)
9127 scsi_host_put(shost);
2e0fef85 9128out_free_phba:
3772a991 9129 lpfc_hba_free(phba);
dea3101e 9130 return error;
9131}
9132
e59058c4 9133/**
da0436e9 9134 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
e59058c4
JS		 9135 * @pdev: pointer to PCI device
9136 *
da0436e9
JS		 9137 * This routine is called from the kernel's PCI subsystem to device with
9138 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
3772a991
JS		 9139 * removed from PCI bus, it performs all the necessary cleanup for the HBA
9140 * device to be removed from the PCI subsystem properly.
e59058c4 9141 **/
dea3101e 9142static void __devexit
da0436e9 9143lpfc_pci_remove_one_s4(struct pci_dev *pdev)
dea3101e 9144{
da0436e9 9145 struct Scsi_Host *shost = pci_get_drvdata(pdev);
2e0fef85 9146 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
eada272d 9147 struct lpfc_vport **vports;
da0436e9 9148 struct lpfc_hba *phba = vport->phba;
eada272d 9149 int i;
8a4df120 9150
da0436e9 9151 /* Mark the device unloading flag */
549e55cd 9152 spin_lock_irq(&phba->hbalock);
51ef4c26 9153 vport->load_flag |= FC_UNLOADING;
549e55cd 9154 spin_unlock_irq(&phba->hbalock);
2e0fef85 9155
da0436e9 9156 /* Free the HBA sysfs attributes */
858c9f6c
JS		 9157 lpfc_free_sysfs_attr(vport);
9158
eada272d
JS		 9159 /* Release all the vports against this physical port */
9160 vports = lpfc_create_vport_work_array(phba);
9161 if (vports != NULL)
3772a991 9162 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
eada272d
JS		 9163 fc_vport_terminate(vports[i]->fc_vport);
9164 lpfc_destroy_vport_work_array(phba, vports);
9165
9166 /* Remove FC host and then SCSI host with the physical port */
858c9f6c
JS		 9167 fc_remove_host(shost);
9168 scsi_remove_host(shost);
da0436e9
JS		 9169
9170 /* Perform cleanup on the physical port */
87af33fe
JS		 9171 lpfc_cleanup(vport);
9172
2e0fef85 9173 /*
da0436e9 9174 * Bring down the SLI Layer. This step disables all interrupts,
2e0fef85 9175 * clears the rings, discards all mailbox commands, and resets
da0436e9 9176 * the HBA FCoE function.
2e0fef85 9177 */
da0436e9
JS		 9178 lpfc_debugfs_terminate(vport);
9179 lpfc_sli4_hba_unset(phba);
a257bf90 9180
858c9f6c
JS		 9181 spin_lock_irq(&phba->hbalock);
9182 list_del_init(&vport->listentry);
9183 spin_unlock_irq(&phba->hbalock);
9184
3677a3a7 9185 /* Perform scsi free before driver resource_unset since scsi
da0436e9 9186 * buffers are released to their corresponding pools here.
2e0fef85
JS		 9187 */
9188 lpfc_scsi_free(phba);
da0436e9 9189 lpfc_sli4_driver_resource_unset(phba);
ed957684 9190
da0436e9
JS		 9191 /* Unmap adapter Control and Doorbell registers */
9192 lpfc_sli4_pci_mem_unset(phba);
2e0fef85 9193
da0436e9
JS		 9194 /* Release PCI resources and disable device's PCI function */
9195 scsi_host_put(shost);
9196 lpfc_disable_pci_dev(phba);
2e0fef85 9197
da0436e9 9198 /* Finally, free the driver's device data structure */
3772a991 9199 lpfc_hba_free(phba);
2e0fef85 9200
da0436e9 9201 return;
dea3101e 9202}
9203
3a55b532 9204/**
da0436e9 9205 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
3a55b532
JS		 9206 * @pdev: pointer to PCI device
9207 * @msg: power management message
9208 *
da0436e9
JS		 9209 * This routine is called from the kernel's PCI subsystem to support system
9210 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
9211 * this method, it quiesces the device by stopping the driver's worker
9212 * thread for the device, turning off device's interrupt and DMA, and bring
9213 * the device offline. Note that as the driver implements the minimum PM
9214 * requirements to a power-aware driver's PM support for suspend/resume -- all
9215 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
9216 * method call will be treated as SUSPEND and the driver will fully
9217 * reinitialize its device during resume() method call, the driver will set
9218 * device to PCI_D3hot state in PCI config space instead of setting it
3772a991 9219 * according to the @msg provided by the PM.
3a55b532
JS		 9220 *
9221 * Return code
3772a991
JS		 9222 * 0 - driver suspended the device
9223 * Error otherwise
3a55b532
JS		 9224 **/
9225static int
da0436e9 9226lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
3a55b532
JS		 9227{
9228 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9229 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9230
9231 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
75baf696 9232 "2843 PCI device Power Management suspend.\n");
3a55b532
JS		 9233
9234 /* Bring down the device */
9235 lpfc_offline_prep(phba);
9236 lpfc_offline(phba);
9237 kthread_stop(phba->worker_thread);
9238
9239 /* Disable interrupt from device */
da0436e9 9240 lpfc_sli4_disable_intr(phba);
3a55b532
JS		 9241
9242 /* Save device state to PCI config space */
9243 pci_save_state(pdev);
9244 pci_set_power_state(pdev, PCI_D3hot);
9245
9246 return 0;
9247}
9248
9249/**
da0436e9 9250 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
3a55b532
JS		 9251 * @pdev: pointer to PCI device
9252 *
da0436e9
JS		 9253 * This routine is called from the kernel's PCI subsystem to support system
9254 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
9255 * this method, it restores the device's PCI config space state and fully
9256 * reinitializes the device and brings it online. Note that as the driver
9257 * implements the minimum PM requirements to a power-aware driver's PM for
9258 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9259 * to the suspend() method call will be treated as SUSPEND and the driver
9260 * will fully reinitialize its device during resume() method call, the device
9261 * will be set to PCI_D0 directly in PCI config space before restoring the
9262 * state.
3a55b532
JS		 9263 *
9264 * Return code
3772a991
JS		 9265 * 0 - driver suspended the device
9266 * Error otherwise
3a55b532
JS		 9267 **/
9268static int
da0436e9 9269lpfc_pci_resume_one_s4(struct pci_dev *pdev)
3a55b532
JS		 9270{
9271 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9272 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
5b75da2f 9273 uint32_t intr_mode;
3a55b532
JS		 9274 int error;
9275
9276 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
da0436e9 9277 "0292 PCI device Power Management resume.\n");
3a55b532
JS		 9278
9279 /* Restore device state from PCI config space */
9280 pci_set_power_state(pdev, PCI_D0);
9281 pci_restore_state(pdev);
1dfb5a47
JS		 9282
9283 /*
9284 * As the new kernel behavior of pci_restore_state() API call clears
9285 * device saved_state flag, need to save the restored state again.
9286 */
9287 pci_save_state(pdev);
9288
3a55b532
JS		 9289 if (pdev->is_busmaster)
9290 pci_set_master(pdev);
9291
da0436e9 9292 /* Startup the kernel thread for this host adapter. */
3a55b532
JS		 9293 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9294 "lpfc_worker_%d", phba->brd_no);
9295 if (IS_ERR(phba->worker_thread)) {
9296 error = PTR_ERR(phba->worker_thread);
9297 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9298 "0293 PM resume failed to start worker "
3a55b532
JS		 9299 "thread: error=x%x.\n", error);
9300 return error;
9301 }
9302
5b75da2f 9303 /* Configure and enable interrupt */
da0436e9 9304 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
5b75da2f 9305 if (intr_mode == LPFC_INTR_ERROR) {
3a55b532 9306 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9307 "0294 PM resume Failed to enable interrupt\n");
5b75da2f
JS		 9308 return -EIO;
9309 } else
9310 phba->intr_mode = intr_mode;
3a55b532
JS		 9311
9312 /* Restart HBA and bring it online */
9313 lpfc_sli_brdrestart(phba);
9314 lpfc_online(phba);
9315
5b75da2f
JS		 9316 /* Log the current active interrupt mode */
9317 lpfc_log_intr_mode(phba, phba->intr_mode);
9318
3a55b532
JS		 9319 return 0;
9320}
9321
75baf696
JS		 9322/**
9323 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
9324 * @phba: pointer to lpfc hba data structure.
9325 *
9326 * This routine is called to prepare the SLI4 device for PCI slot recover. It
9327 * aborts all the outstanding SCSI I/Os to the pci device.
9328 **/
9329static void
9330lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
9331{
9332 struct lpfc_sli *psli = &phba->sli;
9333 struct lpfc_sli_ring *pring;
9334
9335 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9336 "2828 PCI channel I/O abort preparing for recovery\n");
9337 /*
9338 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9339 * and let the SCSI mid-layer to retry them to recover.
9340 */
9341 pring = &psli->ring[psli->fcp_ring];
9342 lpfc_sli_abort_iocb_ring(phba, pring);
9343}
9344
9345/**
9346 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
9347 * @phba: pointer to lpfc hba data structure.
9348 *
9349 * This routine is called to prepare the SLI4 device for PCI slot reset. It
9350 * disables the device interrupt and pci device, and aborts the internal FCP
9351 * pending I/Os.
9352 **/
9353static void
9354lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
9355{
9356 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9357 "2826 PCI channel disable preparing for reset\n");
9358
9359 /* Block any management I/Os to the device */
9360 lpfc_block_mgmt_io(phba);
9361
9362 /* Block all SCSI devices' I/Os on the host */
9363 lpfc_scsi_dev_block(phba);
9364
9365 /* stop all timers */
9366 lpfc_stop_hba_timers(phba);
9367
9368 /* Disable interrupt and pci device */
9369 lpfc_sli4_disable_intr(phba);
9370 pci_disable_device(phba->pcidev);
9371
9372 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9373 lpfc_sli_flush_fcp_rings(phba);
9374}
9375
9376/**
9377 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
9378 * @phba: pointer to lpfc hba data structure.
9379 *
9380 * This routine is called to prepare the SLI4 device for PCI slot permanently
9381 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9382 * pending I/Os.
9383 **/
9384static void
9385lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9386{
9387 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9388 "2827 PCI channel permanent disable for failure\n");
9389
9390 /* Block all SCSI devices' I/Os on the host */
9391 lpfc_scsi_dev_block(phba);
9392
9393 /* stop all timers */
9394 lpfc_stop_hba_timers(phba);
9395
9396 /* Clean up all driver's outstanding SCSI I/Os */
9397 lpfc_sli_flush_fcp_rings(phba);
9398}
9399
8d63f375 9400/**
da0436e9 9401 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
e59058c4
JS		 9402 * @pdev: pointer to PCI device.
9403 * @state: the current PCI connection state.
8d63f375 9404 *
da0436e9
JS		 9405 * This routine is called from the PCI subsystem for error handling to device
9406 * with SLI-4 interface spec. This function is called by the PCI subsystem
9407 * after a PCI bus error affecting this device has been detected. When this
9408 * function is invoked, it will need to stop all the I/Os and interrupt(s)
9409 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
9410 * for the PCI subsystem to perform proper recovery as desired.
e59058c4
JS		 9411 *
9412 * Return codes
3772a991
JS		 9413 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9414 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
e59058c4 9415 **/
3772a991 9416static pci_ers_result_t
da0436e9 9417lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
8d63f375 9418{
75baf696
JS		 9419 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9420 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9421
9422 switch (state) {
9423 case pci_channel_io_normal:
9424 /* Non-fatal error, prepare for recovery */
9425 lpfc_sli4_prep_dev_for_recover(phba);
9426 return PCI_ERS_RESULT_CAN_RECOVER;
9427 case pci_channel_io_frozen:
9428 /* Fatal error, prepare for slot reset */
9429 lpfc_sli4_prep_dev_for_reset(phba);
9430 return PCI_ERS_RESULT_NEED_RESET;
9431 case pci_channel_io_perm_failure:
9432 /* Permanent failure, prepare for device down */
9433 lpfc_sli4_prep_dev_for_perm_failure(phba);
9434 return PCI_ERS_RESULT_DISCONNECT;
9435 default:
9436 /* Unknown state, prepare and request slot reset */
9437 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9438 "2825 Unknown PCI error state: x%x\n", state);
9439 lpfc_sli4_prep_dev_for_reset(phba);
9440 return PCI_ERS_RESULT_NEED_RESET;
9441 }
8d63f375
LV		 9442}
9443
9444/**
da0436e9 9445 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
e59058c4
JS		 9446 * @pdev: pointer to PCI device.
9447 *
da0436e9
JS		 9448 * This routine is called from the PCI subsystem for error handling to device
9449 * with SLI-4 interface spec. It is called after PCI bus has been reset to
9450 * restart the PCI card from scratch, as if from a cold-boot. During the
9451 * PCI subsystem error recovery, after the driver returns
3772a991 9452 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
da0436e9
JS		 9453 * recovery and then call this routine before calling the .resume method to
9454 * recover the device. This function will initialize the HBA device, enable
9455 * the interrupt, but it will just put the HBA to offline state without
9456 * passing any I/O traffic.
8d63f375 9457 *
e59058c4 9458 * Return codes
3772a991
JS		 9459 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9460 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8d63f375 9461 */
3772a991 9462static pci_ers_result_t
da0436e9 9463lpfc_io_slot_reset_s4(struct pci_dev *pdev)
8d63f375 9464{
75baf696
JS		 9465 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9466 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9467 struct lpfc_sli *psli = &phba->sli;
9468 uint32_t intr_mode;
9469
9470 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9471 if (pci_enable_device_mem(pdev)) {
9472 printk(KERN_ERR "lpfc: Cannot re-enable "
9473 "PCI device after reset.\n");
9474 return PCI_ERS_RESULT_DISCONNECT;
9475 }
9476
9477 pci_restore_state(pdev);
9478 if (pdev->is_busmaster)
9479 pci_set_master(pdev);
9480
9481 spin_lock_irq(&phba->hbalock);
9482 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9483 spin_unlock_irq(&phba->hbalock);
9484
9485 /* Configure and enable interrupt */
9486 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9487 if (intr_mode == LPFC_INTR_ERROR) {
9488 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9489 "2824 Cannot re-enable interrupt after "
9490 "slot reset.\n");
9491 return PCI_ERS_RESULT_DISCONNECT;
9492 } else
9493 phba->intr_mode = intr_mode;
9494
9495 /* Log the current active interrupt mode */
9496 lpfc_log_intr_mode(phba, phba->intr_mode);
9497
8d63f375
LV		 9498 return PCI_ERS_RESULT_RECOVERED;
9499}
9500
9501/**
da0436e9 9502 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
e59058c4 9503 * @pdev: pointer to PCI device
8d63f375 9504 *
3772a991 9505 * This routine is called from the PCI subsystem for error handling to device
da0436e9 9506 * with SLI-4 interface spec. It is called when kernel error recovery tells
3772a991
JS		 9507 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9508 * error recovery. After this call, traffic can start to flow from this device
9509 * again.
da0436e9 9510 **/
3772a991 9511static void
da0436e9 9512lpfc_io_resume_s4(struct pci_dev *pdev)
8d63f375 9513{
75baf696
JS		 9514 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9515 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9516
9517 /*
9518 * In case of slot reset, as function reset is performed through
9519 * mailbox command which needs DMA to be enabled, this operation
9520 * has to be moved to the io resume phase. Taking device offline
9521 * will perform the necessary cleanup.
9522 */
9523 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
9524 /* Perform device reset */
9525 lpfc_offline_prep(phba);
9526 lpfc_offline(phba);
9527 lpfc_sli_brdrestart(phba);
9528 /* Bring the device back online */
9529 lpfc_online(phba);
9530 }
9531
9532 /* Clean up Advanced Error Reporting (AER) if needed */
9533 if (phba->hba_flag & HBA_AER_ENABLED)
9534 pci_cleanup_aer_uncorrect_error_status(pdev);
8d63f375
LV		 9535}
9536
3772a991
JS		 9537/**
9538 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
9539 * @pdev: pointer to PCI device
9540 * @pid: pointer to PCI device identifier
9541 *
9542 * This routine is to be registered to the kernel's PCI subsystem. When an
9543 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
9544 * at PCI device-specific information of the device and driver to see if the
9545 * driver state that it can support this kind of device. If the match is
9546 * successful, the driver core invokes this routine. This routine dispatches
9547 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
9548 * do all the initialization that it needs to do to handle the HBA device
9549 * properly.
9550 *
9551 * Return code
9552 * 0 - driver can claim the device
9553 * negative value - driver can not claim the device
9554 **/
9555static int __devinit
9556lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
9557{
9558 int rc;
8fa38513 9559 struct lpfc_sli_intf intf;
3772a991 9560
28baac74 9561 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
3772a991
JS		 9562 return -ENODEV;
9563
8fa38513 9564 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
28baac74 9565 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
da0436e9 9566 rc = lpfc_pci_probe_one_s4(pdev, pid);
8fa38513 9567 else
3772a991 9568 rc = lpfc_pci_probe_one_s3(pdev, pid);
8fa38513 9569
3772a991
JS		 9570 return rc;
9571}
9572
9573/**
9574 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
9575 * @pdev: pointer to PCI device
9576 *
9577 * This routine is to be registered to the kernel's PCI subsystem. When an
9578 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
9579 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
9580 * remove routine, which will perform all the necessary cleanup for the
9581 * device to be removed from the PCI subsystem properly.
9582 **/
9583static void __devexit
9584lpfc_pci_remove_one(struct pci_dev *pdev)
9585{
9586 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9587 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9588
9589 switch (phba->pci_dev_grp) {
9590 case LPFC_PCI_DEV_LP:
9591 lpfc_pci_remove_one_s3(pdev);
9592 break;
da0436e9
JS		 9593 case LPFC_PCI_DEV_OC:
9594 lpfc_pci_remove_one_s4(pdev);
9595 break;
3772a991
JS		 9596 default:
9597 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9598 "1424 Invalid PCI device group: 0x%x\n",
9599 phba->pci_dev_grp);
9600 break;
9601 }
9602 return;
9603}
9604
9605/**
9606 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
9607 * @pdev: pointer to PCI device
9608 * @msg: power management message
9609 *
9610 * This routine is to be registered to the kernel's PCI subsystem to support
9611 * system Power Management (PM). When PM invokes this method, it dispatches
9612 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
9613 * suspend the device.
9614 *
9615 * Return code
9616 * 0 - driver suspended the device
9617 * Error otherwise
9618 **/
9619static int
9620lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
9621{
9622 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9623 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9624 int rc = -ENODEV;
9625
9626 switch (phba->pci_dev_grp) {
9627 case LPFC_PCI_DEV_LP:
9628 rc = lpfc_pci_suspend_one_s3(pdev, msg);
9629 break;
da0436e9
JS		 9630 case LPFC_PCI_DEV_OC:
9631 rc = lpfc_pci_suspend_one_s4(pdev, msg);
9632 break;
3772a991
JS		 9633 default:
9634 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9635 "1425 Invalid PCI device group: 0x%x\n",
9636 phba->pci_dev_grp);
9637 break;
9638 }
9639 return rc;
9640}
9641
9642/**
9643 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
9644 * @pdev: pointer to PCI device
9645 *
9646 * This routine is to be registered to the kernel's PCI subsystem to support
9647 * system Power Management (PM). When PM invokes this method, it dispatches
9648 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
9649 * resume the device.
9650 *
9651 * Return code
9652 * 0 - driver suspended the device
9653 * Error otherwise
9654 **/
9655static int
9656lpfc_pci_resume_one(struct pci_dev *pdev)
9657{
9658 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9659 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9660 int rc = -ENODEV;
9661
9662 switch (phba->pci_dev_grp) {
9663 case LPFC_PCI_DEV_LP:
9664 rc = lpfc_pci_resume_one_s3(pdev);
9665 break;
da0436e9
JS		 9666 case LPFC_PCI_DEV_OC:
9667 rc = lpfc_pci_resume_one_s4(pdev);
9668 break;
3772a991
JS		 9669 default:
9670 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9671 "1426 Invalid PCI device group: 0x%x\n",
9672 phba->pci_dev_grp);
9673 break;
9674 }
9675 return rc;
9676}
9677
9678/**
9679 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
9680 * @pdev: pointer to PCI device.
9681 * @state: the current PCI connection state.
9682 *
9683 * This routine is registered to the PCI subsystem for error handling. This
9684 * function is called by the PCI subsystem after a PCI bus error affecting
9685 * this device has been detected. When this routine is invoked, it dispatches
9686 * the action to the proper SLI-3 or SLI-4 device error detected handling
9687 * routine, which will perform the proper error detected operation.
9688 *
9689 * Return codes
9690 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9691 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9692 **/
9693static pci_ers_result_t
9694lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9695{
9696 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9697 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9698 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9699
9700 switch (phba->pci_dev_grp) {
9701 case LPFC_PCI_DEV_LP:
9702 rc = lpfc_io_error_detected_s3(pdev, state);
9703 break;
da0436e9
JS		 9704 case LPFC_PCI_DEV_OC:
9705 rc = lpfc_io_error_detected_s4(pdev, state);
9706 break;
3772a991
JS		 9707 default:
9708 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9709 "1427 Invalid PCI device group: 0x%x\n",
9710 phba->pci_dev_grp);
9711 break;
9712 }
9713 return rc;
9714}
9715
9716/**
9717 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
9718 * @pdev: pointer to PCI device.
9719 *
9720 * This routine is registered to the PCI subsystem for error handling. This
9721 * function is called after PCI bus has been reset to restart the PCI card
9722 * from scratch, as if from a cold-boot. When this routine is invoked, it
9723 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
9724 * routine, which will perform the proper device reset.
9725 *
9726 * Return codes
9727 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9728 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9729 **/
9730static pci_ers_result_t
9731lpfc_io_slot_reset(struct pci_dev *pdev)
9732{
9733 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9734 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9735 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9736
9737 switch (phba->pci_dev_grp) {
9738 case LPFC_PCI_DEV_LP:
9739 rc = lpfc_io_slot_reset_s3(pdev);
9740 break;
da0436e9
JS		 9741 case LPFC_PCI_DEV_OC:
9742 rc = lpfc_io_slot_reset_s4(pdev);
9743 break;
3772a991
JS		 9744 default:
9745 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9746 "1428 Invalid PCI device group: 0x%x\n",
9747 phba->pci_dev_grp);
9748 break;
9749 }
9750 return rc;
9751}
9752
9753/**
9754 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
9755 * @pdev: pointer to PCI device
9756 *
9757 * This routine is registered to the PCI subsystem for error handling. It
9758 * is called when kernel error recovery tells the lpfc driver that it is
9759 * OK to resume normal PCI operation after PCI bus error recovery. When
9760 * this routine is invoked, it dispatches the action to the proper SLI-3
9761 * or SLI-4 device io_resume routine, which will resume the device operation.
9762 **/
9763static void
9764lpfc_io_resume(struct pci_dev *pdev)
9765{
9766 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9767 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9768
9769 switch (phba->pci_dev_grp) {
9770 case LPFC_PCI_DEV_LP:
9771 lpfc_io_resume_s3(pdev);
9772 break;
da0436e9
JS		 9773 case LPFC_PCI_DEV_OC:
9774 lpfc_io_resume_s4(pdev);
9775 break;
3772a991
JS		 9776 default:
9777 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9778 "1429 Invalid PCI device group: 0x%x\n",
9779 phba->pci_dev_grp);
9780 break;
9781 }
9782 return;
9783}
9784
dea3101e 9785static struct pci_device_id lpfc_id_table[] = {
9786 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
9787 PCI_ANY_ID, PCI_ANY_ID, },
06325e74
JSEC		 9788 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
9789 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9790 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
9791 PCI_ANY_ID, PCI_ANY_ID, },
9792 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
9793 PCI_ANY_ID, PCI_ANY_ID, },
9794 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
9795 PCI_ANY_ID, PCI_ANY_ID, },
9796 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
9797 PCI_ANY_ID, PCI_ANY_ID, },
9798 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
9799 PCI_ANY_ID, PCI_ANY_ID, },
9800 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
9801 PCI_ANY_ID, PCI_ANY_ID, },
9802 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
9803 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9804 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
9805 PCI_ANY_ID, PCI_ANY_ID, },
9806 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
9807 PCI_ANY_ID, PCI_ANY_ID, },
9808 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
9809 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9810 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
9811 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9812 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
9813 PCI_ANY_ID, PCI_ANY_ID, },
9814 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
9815 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9816 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
9817 PCI_ANY_ID, PCI_ANY_ID, },
9818 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
9819 PCI_ANY_ID, PCI_ANY_ID, },
9820 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
9821 PCI_ANY_ID, PCI_ANY_ID, },
84774a4d
JS		 9822 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
9823 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9824 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
9825 PCI_ANY_ID, PCI_ANY_ID, },
9826 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
9827 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9828 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
9829 PCI_ANY_ID, PCI_ANY_ID, },
9830 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
9831 PCI_ANY_ID, PCI_ANY_ID, },
9832 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
9833 PCI_ANY_ID, PCI_ANY_ID, },
9834 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
9835 PCI_ANY_ID, PCI_ANY_ID, },
9836 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
9837 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9838 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
9839 PCI_ANY_ID, PCI_ANY_ID, },
9840 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
9841 PCI_ANY_ID, PCI_ANY_ID, },
b87eab38
JS		 9842 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
9843 PCI_ANY_ID, PCI_ANY_ID, },
9844 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
9845 PCI_ANY_ID, PCI_ANY_ID, },
9846 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
9847 PCI_ANY_ID, PCI_ANY_ID, },
9848 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
9849 PCI_ANY_ID, PCI_ANY_ID, },
9850 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
9851 PCI_ANY_ID, PCI_ANY_ID, },
9852 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
9853 PCI_ANY_ID, PCI_ANY_ID, },
84774a4d
JS		 9854 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
9855 PCI_ANY_ID, PCI_ANY_ID, },
9856 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
9857 PCI_ANY_ID, PCI_ANY_ID, },
9858 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
9859 PCI_ANY_ID, PCI_ANY_ID, },
3772a991
JS		 9860 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
9861 PCI_ANY_ID, PCI_ANY_ID, },
a747c9ce
JS		 9862 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
9863 PCI_ANY_ID, PCI_ANY_ID, },
9864 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
6669f9bb 9865 PCI_ANY_ID, PCI_ANY_ID, },
98fc5dd9
JS		 9866 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
9867 PCI_ANY_ID, PCI_ANY_ID, },
085c647c
JS		 9868 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
9869 PCI_ANY_ID, PCI_ANY_ID, },
9870 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
9871 PCI_ANY_ID, PCI_ANY_ID, },
c0c11512
JS		 9872 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
9873 PCI_ANY_ID, PCI_ANY_ID, },
9874 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
9875 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9876 { 0 }
9877};
9878
9879MODULE_DEVICE_TABLE(pci, lpfc_id_table);
9880
8d63f375
LV		 9881static struct pci_error_handlers lpfc_err_handler = {
9882 .error_detected = lpfc_io_error_detected,
9883 .slot_reset = lpfc_io_slot_reset,
9884 .resume = lpfc_io_resume,
9885};
9886
dea3101e 9887static struct pci_driver lpfc_driver = {
9888 .name = LPFC_DRIVER_NAME,
9889 .id_table = lpfc_id_table,
9890 .probe = lpfc_pci_probe_one,
9891 .remove = __devexit_p(lpfc_pci_remove_one),
3a55b532 9892 .suspend = lpfc_pci_suspend_one,
3772a991 9893 .resume = lpfc_pci_resume_one,
2e0fef85 9894 .err_handler = &lpfc_err_handler,
dea3101e 9895};
9896
e59058c4 9897/**
3621a710 9898 * lpfc_init - lpfc module initialization routine
e59058c4
JS		 9899 *
9900 * This routine is to be invoked when the lpfc module is loaded into the
9901 * kernel. The special kernel macro module_init() is used to indicate the
9902 * role of this routine to the kernel as lpfc module entry point.
9903 *
9904 * Return codes
9905 * 0 - successful
9906 * -ENOMEM - FC attach transport failed
9907 * all others - failed
9908 */
dea3101e 9909static int __init
9910lpfc_init(void)
9911{
9912 int error = 0;
9913
9914 printk(LPFC_MODULE_DESC "\n");
c44ce173 9915 printk(LPFC_COPYRIGHT "\n");
dea3101e 9916
7ee5d43e
JS		 9917 if (lpfc_enable_npiv) {
9918 lpfc_transport_functions.vport_create = lpfc_vport_create;
9919 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
9920 }
dea3101e 9921 lpfc_transport_template =
9922 fc_attach_transport(&lpfc_transport_functions);
7ee5d43e 9923 if (lpfc_transport_template == NULL)
dea3101e 9924 return -ENOMEM;
7ee5d43e 9925 if (lpfc_enable_npiv) {
7ee5d43e 9926 lpfc_vport_transport_template =
98c9ea5c
JS		 9927 fc_attach_transport(&lpfc_vport_transport_functions);
9928 if (lpfc_vport_transport_template == NULL) {
9929 fc_release_transport(lpfc_transport_template);
7ee5d43e 9930 return -ENOMEM;
98c9ea5c 9931 }
7ee5d43e 9932 }
dea3101e 9933 error = pci_register_driver(&lpfc_driver);
92d7f7b0 9934 if (error) {
dea3101e 9935 fc_release_transport(lpfc_transport_template);
d7c255b2
JS		 9936 if (lpfc_enable_npiv)
9937 fc_release_transport(lpfc_vport_transport_template);
92d7f7b0 9938 }
dea3101e 9939
9940 return error;
9941}
9942
e59058c4 9943/**
3621a710 9944 * lpfc_exit - lpfc module removal routine
e59058c4
JS		 9945 *
9946 * This routine is invoked when the lpfc module is removed from the kernel.
9947 * The special kernel macro module_exit() is used to indicate the role of
9948 * this routine to the kernel as lpfc module exit point.
9949 */
dea3101e 9950static void __exit
9951lpfc_exit(void)
9952{
9953 pci_unregister_driver(&lpfc_driver);
9954 fc_release_transport(lpfc_transport_template);
7ee5d43e
JS		 9955 if (lpfc_enable_npiv)
9956 fc_release_transport(lpfc_vport_transport_template);
81301a9b 9957 if (_dump_buf_data) {
6a9c52cf
JS		 9958 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
9959 "_dump_buf_data at 0x%p\n",
81301a9b
JS		 9960 (1L << _dump_buf_data_order), _dump_buf_data);
9961 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
9962 }
9963
9964 if (_dump_buf_dif) {
6a9c52cf
JS		 9965 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
9966 "_dump_buf_dif at 0x%p\n",
81301a9b
JS		 9967 (1L << _dump_buf_dif_order), _dump_buf_dif);
9968 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
9969 }
dea3101e 9970}
9971
9972module_init(lpfc_init);
9973module_exit(lpfc_exit);
9974MODULE_LICENSE("GPL");
9975MODULE_DESCRIPTION(LPFC_MODULE_DESC);
9976MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
9977MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
Linux kernel - Deliverables
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