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[SCSI] Lpfc 8.3.28: FC and SCSI Discovery Fixes
[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>
acf3368f 27#include <linux/module.h>
dea3101e 28#include <linux/kthread.h>
29#include <linux/pci.h>
30#include <linux/spinlock.h>
92d7f7b0 31#include <linux/ctype.h>
0d878419 32#include <linux/aer.h>
5a0e3ad6 33#include <linux/slab.h>
52d52440 34#include <linux/firmware.h>
dea3101e 35
91886523 36#include <scsi/scsi.h>
dea3101e 37#include <scsi/scsi_device.h>
38#include <scsi/scsi_host.h>
39#include <scsi/scsi_transport_fc.h>
40
da0436e9 41#include "lpfc_hw4.h"
dea3101e 42#include "lpfc_hw.h"
43#include "lpfc_sli.h"
da0436e9 44#include "lpfc_sli4.h"
ea2151b4 45#include "lpfc_nl.h"
dea3101e 46#include "lpfc_disc.h"
47#include "lpfc_scsi.h"
48#include "lpfc.h"
49#include "lpfc_logmsg.h"
50#include "lpfc_crtn.h"
92d7f7b0 51#include "lpfc_vport.h"
dea3101e 52#include "lpfc_version.h"
53
81301a9b
JS		 54char *_dump_buf_data;
55unsigned long _dump_buf_data_order;
56char *_dump_buf_dif;
57unsigned long _dump_buf_dif_order;
58spinlock_t _dump_buf_lock;
59
dea3101e 60static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
61static int lpfc_post_rcv_buf(struct lpfc_hba *);
5350d872 62static int lpfc_sli4_queue_verify(struct lpfc_hba *);
da0436e9
JS		 63static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
64static int lpfc_setup_endian_order(struct lpfc_hba *);
da0436e9
JS		 65static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
66static void lpfc_free_sgl_list(struct lpfc_hba *);
67static int lpfc_init_sgl_list(struct lpfc_hba *);
68static int lpfc_init_active_sgl_array(struct lpfc_hba *);
69static void lpfc_free_active_sgl(struct lpfc_hba *);
70static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
71static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
72static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
73static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
74static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
dea3101e 75
76static struct scsi_transport_template *lpfc_transport_template = NULL;
92d7f7b0 77static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
dea3101e 78static DEFINE_IDR(lpfc_hba_index);
79
e59058c4 80/**
3621a710 81 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
e59058c4
JS		 82 * @phba: pointer to lpfc hba data structure.
83 *
84 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
85 * mailbox command. It retrieves the revision information from the HBA and
86 * collects the Vital Product Data (VPD) about the HBA for preparing the
87 * configuration of the HBA.
88 *
89 * Return codes:
90 * 0 - success.
91 * -ERESTART - requests the SLI layer to reset the HBA and try again.
92 * Any other value - indicates an error.
93 **/
dea3101e 94int
2e0fef85 95lpfc_config_port_prep(struct lpfc_hba *phba)
dea3101e 96{
97 lpfc_vpd_t *vp = &phba->vpd;
98 int i = 0, rc;
99 LPFC_MBOXQ_t *pmb;
100 MAILBOX_t *mb;
101 char *lpfc_vpd_data = NULL;
102 uint16_t offset = 0;
103 static char licensed[56] =
104 "key unlock for use with gnu public licensed code only\0";
65a29c16 105 static int init_key = 1;
dea3101e 106
107 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
108 if (!pmb) {
2e0fef85 109 phba->link_state = LPFC_HBA_ERROR;
dea3101e 110 return -ENOMEM;
111 }
112
04c68496 113 mb = &pmb->u.mb;
2e0fef85 114 phba->link_state = LPFC_INIT_MBX_CMDS;
dea3101e 115
116 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
65a29c16
JS		 117 if (init_key) {
118 uint32_t *ptext = (uint32_t *) licensed;
dea3101e 119
65a29c16
JS		 120 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
121 *ptext = cpu_to_be32(*ptext);
122 init_key = 0;
123 }
dea3101e 124
125 lpfc_read_nv(phba, pmb);
126 memset((char*)mb->un.varRDnvp.rsvd3, 0,
127 sizeof (mb->un.varRDnvp.rsvd3));
128 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
129 sizeof (licensed));
130
131 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
132
133 if (rc != MBX_SUCCESS) {
ed957684 134 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
e8b62011 135 "0324 Config Port initialization "
dea3101e 136 "error, mbxCmd x%x READ_NVPARM, "
137 "mbxStatus x%x\n",
dea3101e 138 mb->mbxCommand, mb->mbxStatus);
139 mempool_free(pmb, phba->mbox_mem_pool);
140 return -ERESTART;
141 }
142 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
2e0fef85
JS		 143 sizeof(phba->wwnn));
144 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
145 sizeof(phba->wwpn));
dea3101e 146 }
147
92d7f7b0
JS		 148 phba->sli3_options = 0x0;
149
dea3101e 150 /* Setup and issue mailbox READ REV command */
151 lpfc_read_rev(phba, pmb);
152 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
153 if (rc != MBX_SUCCESS) {
ed957684 154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 155 "0439 Adapter failed to init, mbxCmd x%x "
dea3101e 156 "READ_REV, mbxStatus x%x\n",
dea3101e 157 mb->mbxCommand, mb->mbxStatus);
158 mempool_free( pmb, phba->mbox_mem_pool);
159 return -ERESTART;
160 }
161
92d7f7b0 162
1de933f3
JSEC		 163 /*
164 * The value of rr must be 1 since the driver set the cv field to 1.
165 * This setting requires the FW to set all revision fields.
dea3101e 166 */
1de933f3 167 if (mb->un.varRdRev.rr == 0) {
dea3101e 168 vp->rev.rBit = 0;
1de933f3 169 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011
JS		 170 "0440 Adapter failed to init, READ_REV has "
171 "missing revision information.\n");
dea3101e 172 mempool_free(pmb, phba->mbox_mem_pool);
173 return -ERESTART;
dea3101e 174 }
175
495a714c
JS		 176 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
177 mempool_free(pmb, phba->mbox_mem_pool);
ed957684 178 return -EINVAL;
495a714c 179 }
ed957684 180
dea3101e 181 /* Save information as VPD data */
1de933f3 182 vp->rev.rBit = 1;
92d7f7b0 183 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
1de933f3
JSEC		 184 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
185 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
186 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
187 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
dea3101e 188 vp->rev.biuRev = mb->un.varRdRev.biuRev;
189 vp->rev.smRev = mb->un.varRdRev.smRev;
190 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
191 vp->rev.endecRev = mb->un.varRdRev.endecRev;
192 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
193 vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
194 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
195 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
196 vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
197 vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
198
92d7f7b0
JS		 199 /* If the sli feature level is less then 9, we must
200 * tear down all RPIs and VPIs on link down if NPIV
201 * is enabled.
202 */
203 if (vp->rev.feaLevelHigh < 9)
204 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
205
dea3101e 206 if (lpfc_is_LC_HBA(phba->pcidev->device))
207 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
208 sizeof (phba->RandomData));
209
dea3101e 210 /* Get adapter VPD information */
dea3101e 211 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
212 if (!lpfc_vpd_data)
d7c255b2 213 goto out_free_mbox;
dea3101e 214 do {
a0c87cbd 215 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
dea3101e 216 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
217
218 if (rc != MBX_SUCCESS) {
219 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011 220 "0441 VPD not present on adapter, "
dea3101e 221 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
dea3101e 222 mb->mbxCommand, mb->mbxStatus);
74b72a59 223 mb->un.varDmp.word_cnt = 0;
dea3101e 224 }
04c68496
JS		 225 /* dump mem may return a zero when finished or we got a
226 * mailbox error, either way we are done.
227 */
228 if (mb->un.varDmp.word_cnt == 0)
229 break;
74b72a59
JW		 230 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
231 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
d7c255b2
JS		 232 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
233 lpfc_vpd_data + offset,
92d7f7b0 234 mb->un.varDmp.word_cnt);
dea3101e 235 offset += mb->un.varDmp.word_cnt;
74b72a59
JW		 236 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
237 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
dea3101e 238
239 kfree(lpfc_vpd_data);
dea3101e 240out_free_mbox:
241 mempool_free(pmb, phba->mbox_mem_pool);
242 return 0;
243}
244
e59058c4 245/**
3621a710 246 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
e59058c4
JS		 247 * @phba: pointer to lpfc hba data structure.
248 * @pmboxq: pointer to the driver internal queue element for mailbox command.
249 *
250 * This is the completion handler for driver's configuring asynchronous event
251 * mailbox command to the device. If the mailbox command returns successfully,
252 * it will set internal async event support flag to 1; otherwise, it will
253 * set internal async event support flag to 0.
254 **/
57127f15
JS		 255static void
256lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
257{
04c68496 258 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
57127f15
JS		 259 phba->temp_sensor_support = 1;
260 else
261 phba->temp_sensor_support = 0;
262 mempool_free(pmboxq, phba->mbox_mem_pool);
263 return;
264}
265
97207482 266/**
3621a710 267 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
97207482
JS		 268 * @phba: pointer to lpfc hba data structure.
269 * @pmboxq: pointer to the driver internal queue element for mailbox command.
270 *
271 * This is the completion handler for dump mailbox command for getting
272 * wake up parameters. When this command complete, the response contain
273 * Option rom version of the HBA. This function translate the version number
274 * into a human readable string and store it in OptionROMVersion.
275 **/
276static void
277lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
278{
279 struct prog_id *prg;
280 uint32_t prog_id_word;
281 char dist = ' ';
282 /* character array used for decoding dist type. */
283 char dist_char[] = "nabx";
284
04c68496 285 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
9f1e1b50 286 mempool_free(pmboxq, phba->mbox_mem_pool);
97207482 287 return;
9f1e1b50 288 }
97207482
JS		 289
290 prg = (struct prog_id *) &prog_id_word;
291
292 /* word 7 contain option rom version */
04c68496 293 prog_id_word = pmboxq->u.mb.un.varWords[7];
97207482
JS		 294
295 /* Decode the Option rom version word to a readable string */
296 if (prg->dist < 4)
297 dist = dist_char[prg->dist];
298
299 if ((prg->dist == 3) && (prg->num == 0))
300 sprintf(phba->OptionROMVersion, "%d.%d%d",
301 prg->ver, prg->rev, prg->lev);
302 else
303 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
304 prg->ver, prg->rev, prg->lev,
305 dist, prg->num);
9f1e1b50 306 mempool_free(pmboxq, phba->mbox_mem_pool);
97207482
JS		 307 return;
308}
309
0558056c
JS		 310/**
311 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
312 * cfg_soft_wwnn, cfg_soft_wwpn
313 * @vport: pointer to lpfc vport data structure.
314 *
315 *
316 * Return codes
317 * None.
318 **/
319void
320lpfc_update_vport_wwn(struct lpfc_vport *vport)
321{
322 /* If the soft name exists then update it using the service params */
323 if (vport->phba->cfg_soft_wwnn)
324 u64_to_wwn(vport->phba->cfg_soft_wwnn,
325 vport->fc_sparam.nodeName.u.wwn);
326 if (vport->phba->cfg_soft_wwpn)
327 u64_to_wwn(vport->phba->cfg_soft_wwpn,
328 vport->fc_sparam.portName.u.wwn);
329
330 /*
331 * If the name is empty or there exists a soft name
332 * then copy the service params name, otherwise use the fc name
333 */
334 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
335 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
336 sizeof(struct lpfc_name));
337 else
338 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
339 sizeof(struct lpfc_name));
340
341 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
342 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
343 sizeof(struct lpfc_name));
344 else
345 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
346 sizeof(struct lpfc_name));
347}
348
e59058c4 349/**
3621a710 350 * lpfc_config_port_post - Perform lpfc initialization after config port
e59058c4
JS		 351 * @phba: pointer to lpfc hba data structure.
352 *
353 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
354 * command call. It performs all internal resource and state setups on the
355 * port: post IOCB buffers, enable appropriate host interrupt attentions,
356 * ELS ring timers, etc.
357 *
358 * Return codes
359 * 0 - success.
360 * Any other value - error.
361 **/
dea3101e 362int
2e0fef85 363lpfc_config_port_post(struct lpfc_hba *phba)
dea3101e 364{
2e0fef85 365 struct lpfc_vport *vport = phba->pport;
a257bf90 366 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
dea3101e 367 LPFC_MBOXQ_t *pmb;
368 MAILBOX_t *mb;
369 struct lpfc_dmabuf *mp;
370 struct lpfc_sli *psli = &phba->sli;
371 uint32_t status, timeout;
2e0fef85
JS		 372 int i, j;
373 int rc;
dea3101e 374
7af67051
JS		 375 spin_lock_irq(&phba->hbalock);
376 /*
377 * If the Config port completed correctly the HBA is not
378 * over heated any more.
379 */
380 if (phba->over_temp_state == HBA_OVER_TEMP)
381 phba->over_temp_state = HBA_NORMAL_TEMP;
382 spin_unlock_irq(&phba->hbalock);
383
dea3101e 384 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
385 if (!pmb) {
2e0fef85 386 phba->link_state = LPFC_HBA_ERROR;
dea3101e 387 return -ENOMEM;
388 }
04c68496 389 mb = &pmb->u.mb;
dea3101e 390
dea3101e 391 /* Get login parameters for NID. */
9f1177a3
JS		 392 rc = lpfc_read_sparam(phba, pmb, 0);
393 if (rc) {
394 mempool_free(pmb, phba->mbox_mem_pool);
395 return -ENOMEM;
396 }
397
ed957684 398 pmb->vport = vport;
dea3101e 399 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
ed957684 400 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 401 "0448 Adapter failed init, mbxCmd x%x "
dea3101e 402 "READ_SPARM mbxStatus x%x\n",
dea3101e 403 mb->mbxCommand, mb->mbxStatus);
2e0fef85 404 phba->link_state = LPFC_HBA_ERROR;
dea3101e 405 mp = (struct lpfc_dmabuf *) pmb->context1;
9f1177a3 406 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 407 lpfc_mbuf_free(phba, mp->virt, mp->phys);
408 kfree(mp);
409 return -EIO;
410 }
411
412 mp = (struct lpfc_dmabuf *) pmb->context1;
413
2e0fef85 414 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
dea3101e 415 lpfc_mbuf_free(phba, mp->virt, mp->phys);
416 kfree(mp);
417 pmb->context1 = NULL;
0558056c 418 lpfc_update_vport_wwn(vport);
a257bf90
JS		 419
420 /* Update the fc_host data structures with new wwn. */
421 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
422 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
21e9a0a5 423 fc_host_max_npiv_vports(shost) = phba->max_vpi;
a257bf90 424
dea3101e 425 /* If no serial number in VPD data, use low 6 bytes of WWNN */
426 /* This should be consolidated into parse_vpd ? - mr */
427 if (phba->SerialNumber[0] == 0) {
428 uint8_t *outptr;
429
2e0fef85 430 outptr = &vport->fc_nodename.u.s.IEEE[0];
dea3101e 431 for (i = 0; i < 12; i++) {
432 status = *outptr++;
433 j = ((status & 0xf0) >> 4);
434 if (j <= 9)
435 phba->SerialNumber[i] =
436 (char)((uint8_t) 0x30 + (uint8_t) j);
437 else
438 phba->SerialNumber[i] =
439 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
440 i++;
441 j = (status & 0xf);
442 if (j <= 9)
443 phba->SerialNumber[i] =
444 (char)((uint8_t) 0x30 + (uint8_t) j);
445 else
446 phba->SerialNumber[i] =
447 (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
448 }
449 }
450
dea3101e 451 lpfc_read_config(phba, pmb);
ed957684 452 pmb->vport = vport;
dea3101e 453 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
ed957684 454 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 455 "0453 Adapter failed to init, mbxCmd x%x "
dea3101e 456 "READ_CONFIG, mbxStatus x%x\n",
dea3101e 457 mb->mbxCommand, mb->mbxStatus);
2e0fef85 458 phba->link_state = LPFC_HBA_ERROR;
dea3101e 459 mempool_free( pmb, phba->mbox_mem_pool);
460 return -EIO;
461 }
462
a0c87cbd
JS		 463 /* Check if the port is disabled */
464 lpfc_sli_read_link_ste(phba);
465
dea3101e 466 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
467 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
468 phba->cfg_hba_queue_depth =
f1126688
JS		 469 (mb->un.varRdConfig.max_xri + 1) -
470 lpfc_sli4_get_els_iocb_cnt(phba);
dea3101e 471
472 phba->lmt = mb->un.varRdConfig.lmt;
74b72a59
JW		 473
474 /* Get the default values for Model Name and Description */
475 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
476
2e0fef85 477 phba->link_state = LPFC_LINK_DOWN;
dea3101e 478
0b727fea 479 /* Only process IOCBs on ELS ring till hba_state is READY */
a4bc3379
JS		 480 if (psli->ring[psli->extra_ring].cmdringaddr)
481 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
dea3101e 482 if (psli->ring[psli->fcp_ring].cmdringaddr)
483 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
484 if (psli->ring[psli->next_ring].cmdringaddr)
485 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
486
487 /* Post receive buffers for desired rings */
ed957684
JS		 488 if (phba->sli_rev != 3)
489 lpfc_post_rcv_buf(phba);
dea3101e 490
9399627f
JS		 491 /*
492 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
493 */
494 if (phba->intr_type == MSIX) {
495 rc = lpfc_config_msi(phba, pmb);
496 if (rc) {
497 mempool_free(pmb, phba->mbox_mem_pool);
498 return -EIO;
499 }
500 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
501 if (rc != MBX_SUCCESS) {
502 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
503 "0352 Config MSI mailbox command "
504 "failed, mbxCmd x%x, mbxStatus x%x\n",
04c68496
JS		 505 pmb->u.mb.mbxCommand,
506 pmb->u.mb.mbxStatus);
9399627f
JS		 507 mempool_free(pmb, phba->mbox_mem_pool);
508 return -EIO;
509 }
510 }
511
04c68496 512 spin_lock_irq(&phba->hbalock);
9399627f
JS		 513 /* Initialize ERATT handling flag */
514 phba->hba_flag &= ~HBA_ERATT_HANDLED;
515
dea3101e 516 /* Enable appropriate host interrupts */
9940b97b
JS		 517 if (lpfc_readl(phba->HCregaddr, &status)) {
518 spin_unlock_irq(&phba->hbalock);
519 return -EIO;
520 }
dea3101e 521 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
522 if (psli->num_rings > 0)
523 status |= HC_R0INT_ENA;
524 if (psli->num_rings > 1)
525 status |= HC_R1INT_ENA;
526 if (psli->num_rings > 2)
527 status |= HC_R2INT_ENA;
528 if (psli->num_rings > 3)
529 status |= HC_R3INT_ENA;
530
875fbdfe
JSEC		 531 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
532 (phba->cfg_poll & DISABLE_FCP_RING_INT))
9399627f 533 status &= ~(HC_R0INT_ENA);
875fbdfe 534
dea3101e 535 writel(status, phba->HCregaddr);
536 readl(phba->HCregaddr); /* flush */
2e0fef85 537 spin_unlock_irq(&phba->hbalock);
dea3101e 538
9399627f
JS		 539 /* Set up ring-0 (ELS) timer */
540 timeout = phba->fc_ratov * 2;
2e0fef85 541 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
9399627f 542 /* Set up heart beat (HB) timer */
858c9f6c
JS		 543 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
544 phba->hb_outstanding = 0;
545 phba->last_completion_time = jiffies;
9399627f
JS		 546 /* Set up error attention (ERATT) polling timer */
547 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
dea3101e 548
a0c87cbd
JS		 549 if (phba->hba_flag & LINK_DISABLED) {
550 lpfc_printf_log(phba,
551 KERN_ERR, LOG_INIT,
552 "2598 Adapter Link is disabled.\n");
553 lpfc_down_link(phba, pmb);
554 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
555 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
556 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
557 lpfc_printf_log(phba,
558 KERN_ERR, LOG_INIT,
559 "2599 Adapter failed to issue DOWN_LINK"
560 " mbox command rc 0x%x\n", rc);
561
562 mempool_free(pmb, phba->mbox_mem_pool);
563 return -EIO;
564 }
e40a02c1 565 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
026abb87
JS		 566 mempool_free(pmb, phba->mbox_mem_pool);
567 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
568 if (rc)
569 return rc;
dea3101e 570 }
571 /* MBOX buffer will be freed in mbox compl */
57127f15 572 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9f1177a3
JS		 573 if (!pmb) {
574 phba->link_state = LPFC_HBA_ERROR;
575 return -ENOMEM;
576 }
577
57127f15
JS		 578 lpfc_config_async(phba, pmb, LPFC_ELS_RING);
579 pmb->mbox_cmpl = lpfc_config_async_cmpl;
580 pmb->vport = phba->pport;
581 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
dea3101e 582
57127f15
JS		 583 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
584 lpfc_printf_log(phba,
585 KERN_ERR,
586 LOG_INIT,
587 "0456 Adapter failed to issue "
e4e74273 588 "ASYNCEVT_ENABLE mbox status x%x\n",
57127f15
JS		 589 rc);
590 mempool_free(pmb, phba->mbox_mem_pool);
591 }
97207482
JS		 592
593 /* Get Option rom version */
594 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9f1177a3
JS		 595 if (!pmb) {
596 phba->link_state = LPFC_HBA_ERROR;
597 return -ENOMEM;
598 }
599
97207482
JS		 600 lpfc_dump_wakeup_param(phba, pmb);
601 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
602 pmb->vport = phba->pport;
603 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
604
605 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
606 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
e4e74273 607 "to get Option ROM version status x%x\n", rc);
97207482
JS		 608 mempool_free(pmb, phba->mbox_mem_pool);
609 }
610
d7c255b2 611 return 0;
ce8b3ce5
JS		 612}
613
84d1b006
JS		 614/**
615 * lpfc_hba_init_link - Initialize the FC link
616 * @phba: pointer to lpfc hba data structure.
6e7288d9 617 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
84d1b006
JS		 618 *
619 * This routine will issue the INIT_LINK mailbox command call.
620 * It is available to other drivers through the lpfc_hba data
621 * structure for use as a delayed link up mechanism with the
622 * module parameter lpfc_suppress_link_up.
623 *
624 * Return code
625 * 0 - success
626 * Any other value - error
627 **/
628int
6e7288d9 629lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
84d1b006
JS		 630{
631 struct lpfc_vport *vport = phba->pport;
632 LPFC_MBOXQ_t *pmb;
633 MAILBOX_t *mb;
634 int rc;
635
636 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
637 if (!pmb) {
638 phba->link_state = LPFC_HBA_ERROR;
639 return -ENOMEM;
640 }
641 mb = &pmb->u.mb;
642 pmb->vport = vport;
643
026abb87
JS		 644 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
645 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
646 !(phba->lmt & LMT_1Gb)) ||
647 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
648 !(phba->lmt & LMT_2Gb)) ||
649 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
650 !(phba->lmt & LMT_4Gb)) ||
651 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
652 !(phba->lmt & LMT_8Gb)) ||
653 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
654 !(phba->lmt & LMT_10Gb)) ||
655 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
656 !(phba->lmt & LMT_16Gb))) {
657 /* Reset link speed to auto */
658 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
659 "1302 Invalid speed for this board:%d "
660 "Reset link speed to auto.\n",
661 phba->cfg_link_speed);
662 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
663 }
76a95d75 664 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
84d1b006
JS		 665 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
666 lpfc_set_loopback_flag(phba);
6e7288d9 667 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
76a95d75 668 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
84d1b006
JS		 669 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
670 "0498 Adapter failed to init, mbxCmd x%x "
671 "INIT_LINK, mbxStatus x%x\n",
672 mb->mbxCommand, mb->mbxStatus);
76a95d75
JS		 673 if (phba->sli_rev <= LPFC_SLI_REV3) {
674 /* Clear all interrupt enable conditions */
675 writel(0, phba->HCregaddr);
676 readl(phba->HCregaddr); /* flush */
677 /* Clear all pending interrupts */
678 writel(0xffffffff, phba->HAregaddr);
679 readl(phba->HAregaddr); /* flush */
680 }
84d1b006 681 phba->link_state = LPFC_HBA_ERROR;
6e7288d9 682 if (rc != MBX_BUSY || flag == MBX_POLL)
84d1b006
JS		 683 mempool_free(pmb, phba->mbox_mem_pool);
684 return -EIO;
685 }
e40a02c1 686 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
6e7288d9
JS		 687 if (flag == MBX_POLL)
688 mempool_free(pmb, phba->mbox_mem_pool);
84d1b006
JS		 689
690 return 0;
691}
692
693/**
694 * lpfc_hba_down_link - this routine downs the FC link
6e7288d9
JS		 695 * @phba: pointer to lpfc hba data structure.
696 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
84d1b006
JS		 697 *
698 * This routine will issue the DOWN_LINK mailbox command call.
699 * It is available to other drivers through the lpfc_hba data
700 * structure for use to stop the link.
701 *
702 * Return code
703 * 0 - success
704 * Any other value - error
705 **/
706int
6e7288d9 707lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
84d1b006
JS		 708{
709 LPFC_MBOXQ_t *pmb;
710 int rc;
711
712 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
713 if (!pmb) {
714 phba->link_state = LPFC_HBA_ERROR;
715 return -ENOMEM;
716 }
717
718 lpfc_printf_log(phba,
719 KERN_ERR, LOG_INIT,
720 "0491 Adapter Link is disabled.\n");
721 lpfc_down_link(phba, pmb);
722 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
6e7288d9 723 rc = lpfc_sli_issue_mbox(phba, pmb, flag);
84d1b006
JS		 724 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
725 lpfc_printf_log(phba,
726 KERN_ERR, LOG_INIT,
727 "2522 Adapter failed to issue DOWN_LINK"
728 " mbox command rc 0x%x\n", rc);
729
730 mempool_free(pmb, phba->mbox_mem_pool);
731 return -EIO;
732 }
6e7288d9
JS		 733 if (flag == MBX_POLL)
734 mempool_free(pmb, phba->mbox_mem_pool);
735
84d1b006
JS		 736 return 0;
737}
738
e59058c4 739/**
3621a710 740 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
e59058c4
JS		 741 * @phba: pointer to lpfc HBA data structure.
742 *
743 * This routine will do LPFC uninitialization before the HBA is reset when
744 * bringing down the SLI Layer.
745 *
746 * Return codes
747 * 0 - success.
748 * Any other value - error.
749 **/
dea3101e 750int
2e0fef85 751lpfc_hba_down_prep(struct lpfc_hba *phba)
dea3101e 752{
1b32f6aa
JS		 753 struct lpfc_vport **vports;
754 int i;
3772a991
JS		 755
756 if (phba->sli_rev <= LPFC_SLI_REV3) {
757 /* Disable interrupts */
758 writel(0, phba->HCregaddr);
759 readl(phba->HCregaddr); /* flush */
760 }
dea3101e 761
1b32f6aa
JS		 762 if (phba->pport->load_flag & FC_UNLOADING)
763 lpfc_cleanup_discovery_resources(phba->pport);
764 else {
765 vports = lpfc_create_vport_work_array(phba);
766 if (vports != NULL)
3772a991
JS		 767 for (i = 0; i <= phba->max_vports &&
768 vports[i] != NULL; i++)
1b32f6aa
JS		 769 lpfc_cleanup_discovery_resources(vports[i]);
770 lpfc_destroy_vport_work_array(phba, vports);
7f5f3d0d
JS		 771 }
772 return 0;
dea3101e 773}
774
e59058c4 775/**
3772a991 776 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
e59058c4
JS		 777 * @phba: pointer to lpfc HBA data structure.
778 *
779 * This routine will do uninitialization after the HBA is reset when bring
780 * down the SLI Layer.
781 *
782 * Return codes
af901ca1 783 * 0 - success.
e59058c4
JS		 784 * Any other value - error.
785 **/
3772a991
JS		 786static int
787lpfc_hba_down_post_s3(struct lpfc_hba *phba)
41415862
JW		 788{
789 struct lpfc_sli *psli = &phba->sli;
790 struct lpfc_sli_ring *pring;
791 struct lpfc_dmabuf *mp, *next_mp;
09372820 792 LIST_HEAD(completions);
41415862
JW		 793 int i;
794
92d7f7b0
JS		 795 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
796 lpfc_sli_hbqbuf_free_all(phba);
797 else {
798 /* Cleanup preposted buffers on the ELS ring */
799 pring = &psli->ring[LPFC_ELS_RING];
800 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
801 list_del(&mp->list);
802 pring->postbufq_cnt--;
803 lpfc_mbuf_free(phba, mp->virt, mp->phys);
804 kfree(mp);
805 }
41415862
JW		 806 }
807
09372820 808 spin_lock_irq(&phba->hbalock);
41415862
JW		 809 for (i = 0; i < psli->num_rings; i++) {
810 pring = &psli->ring[i];
09372820
JS		 811
812 /* At this point in time the HBA is either reset or DOA. Either
813 * way, nothing should be on txcmplq as it will NEVER complete.
814 */
815 list_splice_init(&pring->txcmplq, &completions);
816 pring->txcmplq_cnt = 0;
817 spin_unlock_irq(&phba->hbalock);
818
a257bf90
JS		 819 /* Cancel all the IOCBs from the completions list */
820 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
821 IOERR_SLI_ABORTED);
09372820 822
41415862 823 lpfc_sli_abort_iocb_ring(phba, pring);
09372820 824 spin_lock_irq(&phba->hbalock);
41415862 825 }
09372820 826 spin_unlock_irq(&phba->hbalock);
41415862
JW		 827
828 return 0;
829}
5af5eee7 830
da0436e9
JS		 831/**
832 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
833 * @phba: pointer to lpfc HBA data structure.
834 *
835 * This routine will do uninitialization after the HBA is reset when bring
836 * down the SLI Layer.
837 *
838 * Return codes
af901ca1 839 * 0 - success.
da0436e9
JS		 840 * Any other value - error.
841 **/
842static int
843lpfc_hba_down_post_s4(struct lpfc_hba *phba)
844{
845 struct lpfc_scsi_buf *psb, *psb_next;
846 LIST_HEAD(aborts);
847 int ret;
848 unsigned long iflag = 0;
0f65ff68
JS		 849 struct lpfc_sglq *sglq_entry = NULL;
850
da0436e9
JS		 851 ret = lpfc_hba_down_post_s3(phba);
852 if (ret)
853 return ret;
854 /* At this point in time the HBA is either reset or DOA. Either
855 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
856 * on the lpfc_sgl_list so that it can either be freed if the
857 * driver is unloading or reposted if the driver is restarting
858 * the port.
859 */
860 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
861 /* scsl_buf_list */
862 /* abts_sgl_list_lock required because worker thread uses this
863 * list.
864 */
865 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
0f65ff68
JS		 866 list_for_each_entry(sglq_entry,
867 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
868 sglq_entry->state = SGL_FREED;
869
da0436e9
JS		 870 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
871 &phba->sli4_hba.lpfc_sgl_list);
872 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
873 /* abts_scsi_buf_list_lock required because worker thread uses this
874 * list.
875 */
876 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
877 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
878 &aborts);
879 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
880 spin_unlock_irq(&phba->hbalock);
881
882 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
883 psb->pCmd = NULL;
884 psb->status = IOSTAT_SUCCESS;
885 }
886 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
887 list_splice(&aborts, &phba->lpfc_scsi_buf_list);
888 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
889 return 0;
890}
891
892/**
893 * lpfc_hba_down_post - Wrapper func for hba down post routine
894 * @phba: pointer to lpfc HBA data structure.
895 *
896 * This routine wraps the actual SLI3 or SLI4 routine for performing
897 * uninitialization after the HBA is reset when bring down the SLI Layer.
898 *
899 * Return codes
af901ca1 900 * 0 - success.
da0436e9
JS		 901 * Any other value - error.
902 **/
903int
904lpfc_hba_down_post(struct lpfc_hba *phba)
905{
906 return (*phba->lpfc_hba_down_post)(phba);
907}
41415862 908
e59058c4 909/**
3621a710 910 * lpfc_hb_timeout - The HBA-timer timeout handler
e59058c4
JS		 911 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
912 *
913 * This is the HBA-timer timeout handler registered to the lpfc driver. When
914 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
915 * work-port-events bitmap and the worker thread is notified. This timeout
916 * event will be used by the worker thread to invoke the actual timeout
917 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
918 * be performed in the timeout handler and the HBA timeout event bit shall
919 * be cleared by the worker thread after it has taken the event bitmap out.
920 **/
a6ababd2 921static void
858c9f6c
JS		 922lpfc_hb_timeout(unsigned long ptr)
923{
924 struct lpfc_hba *phba;
5e9d9b82 925 uint32_t tmo_posted;
858c9f6c
JS		 926 unsigned long iflag;
927
928 phba = (struct lpfc_hba *)ptr;
9399627f
JS		 929
930 /* Check for heart beat timeout conditions */
858c9f6c 931 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
5e9d9b82
JS		 932 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
933 if (!tmo_posted)
858c9f6c
JS		 934 phba->pport->work_port_events |= WORKER_HB_TMO;
935 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
936
9399627f 937 /* Tell the worker thread there is work to do */
5e9d9b82
JS		 938 if (!tmo_posted)
939 lpfc_worker_wake_up(phba);
858c9f6c
JS		 940 return;
941}
942
19ca7609
JS		 943/**
944 * lpfc_rrq_timeout - The RRQ-timer timeout handler
945 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
946 *
947 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
948 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
949 * work-port-events bitmap and the worker thread is notified. This timeout
950 * event will be used by the worker thread to invoke the actual timeout
951 * handler routine, lpfc_rrq_handler. Any periodical operations will
952 * be performed in the timeout handler and the RRQ timeout event bit shall
953 * be cleared by the worker thread after it has taken the event bitmap out.
954 **/
955static void
956lpfc_rrq_timeout(unsigned long ptr)
957{
958 struct lpfc_hba *phba;
19ca7609
JS		 959 unsigned long iflag;
960
961 phba = (struct lpfc_hba *)ptr;
962 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1151e3ec 963 phba->hba_flag |= HBA_RRQ_ACTIVE;
19ca7609 964 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1151e3ec 965 lpfc_worker_wake_up(phba);
19ca7609
JS		 966}
967
e59058c4 968/**
3621a710 969 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
e59058c4
JS		 970 * @phba: pointer to lpfc hba data structure.
971 * @pmboxq: pointer to the driver internal queue element for mailbox command.
972 *
973 * This is the callback function to the lpfc heart-beat mailbox command.
974 * If configured, the lpfc driver issues the heart-beat mailbox command to
975 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
976 * heart-beat mailbox command is issued, the driver shall set up heart-beat
977 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
978 * heart-beat outstanding state. Once the mailbox command comes back and
979 * no error conditions detected, the heart-beat mailbox command timer is
980 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
981 * state is cleared for the next heart-beat. If the timer expired with the
982 * heart-beat outstanding state set, the driver will put the HBA offline.
983 **/
858c9f6c
JS		 984static void
985lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
986{
987 unsigned long drvr_flag;
988
989 spin_lock_irqsave(&phba->hbalock, drvr_flag);
990 phba->hb_outstanding = 0;
991 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
992
9399627f 993 /* Check and reset heart-beat timer is necessary */
858c9f6c
JS		 994 mempool_free(pmboxq, phba->mbox_mem_pool);
995 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
996 !(phba->link_state == LPFC_HBA_ERROR) &&
51ef4c26 997 !(phba->pport->load_flag & FC_UNLOADING))
858c9f6c
JS		 998 mod_timer(&phba->hb_tmofunc,
999 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1000 return;
1001}
1002
e59058c4 1003/**
3621a710 1004 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
e59058c4
JS		 1005 * @phba: pointer to lpfc hba data structure.
1006 *
1007 * This is the actual HBA-timer timeout handler to be invoked by the worker
1008 * thread whenever the HBA timer fired and HBA-timeout event posted. This
1009 * handler performs any periodic operations needed for the device. If such
1010 * periodic event has already been attended to either in the interrupt handler
1011 * or by processing slow-ring or fast-ring events within the HBA-timer
1012 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1013 * the timer for the next timeout period. If lpfc heart-beat mailbox command
1014 * is configured and there is no heart-beat mailbox command outstanding, a
1015 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1016 * has been a heart-beat mailbox command outstanding, the HBA shall be put
1017 * to offline.
1018 **/
858c9f6c
JS		 1019void
1020lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1021{
45ed1190 1022 struct lpfc_vport **vports;
858c9f6c 1023 LPFC_MBOXQ_t *pmboxq;
0ff10d46 1024 struct lpfc_dmabuf *buf_ptr;
45ed1190 1025 int retval, i;
858c9f6c 1026 struct lpfc_sli *psli = &phba->sli;
0ff10d46 1027 LIST_HEAD(completions);
858c9f6c 1028
45ed1190
JS		 1029 vports = lpfc_create_vport_work_array(phba);
1030 if (vports != NULL)
1031 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1032 lpfc_rcv_seq_check_edtov(vports[i]);
1033 lpfc_destroy_vport_work_array(phba, vports);
1034
858c9f6c 1035 if ((phba->link_state == LPFC_HBA_ERROR) ||
51ef4c26 1036 (phba->pport->load_flag & FC_UNLOADING) ||
858c9f6c
JS		 1037 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1038 return;
1039
1040 spin_lock_irq(&phba->pport->work_port_lock);
858c9f6c
JS		 1041
1042 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1043 jiffies)) {
1044 spin_unlock_irq(&phba->pport->work_port_lock);
1045 if (!phba->hb_outstanding)
1046 mod_timer(&phba->hb_tmofunc,
1047 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1048 else
1049 mod_timer(&phba->hb_tmofunc,
1050 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1051 return;
1052 }
1053 spin_unlock_irq(&phba->pport->work_port_lock);
1054
0ff10d46
JS		 1055 if (phba->elsbuf_cnt &&
1056 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1057 spin_lock_irq(&phba->hbalock);
1058 list_splice_init(&phba->elsbuf, &completions);
1059 phba->elsbuf_cnt = 0;
1060 phba->elsbuf_prev_cnt = 0;
1061 spin_unlock_irq(&phba->hbalock);
1062
1063 while (!list_empty(&completions)) {
1064 list_remove_head(&completions, buf_ptr,
1065 struct lpfc_dmabuf, list);
1066 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1067 kfree(buf_ptr);
1068 }
1069 }
1070 phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1071
858c9f6c 1072 /* If there is no heart beat outstanding, issue a heartbeat command */
13815c83
JS		 1073 if (phba->cfg_enable_hba_heartbeat) {
1074 if (!phba->hb_outstanding) {
bc73905a
JS		 1075 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1076 (list_empty(&psli->mboxq))) {
1077 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1078 GFP_KERNEL);
1079 if (!pmboxq) {
1080 mod_timer(&phba->hb_tmofunc,
1081 jiffies +
1082 HZ * LPFC_HB_MBOX_INTERVAL);
1083 return;
1084 }
1085
1086 lpfc_heart_beat(phba, pmboxq);
1087 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1088 pmboxq->vport = phba->pport;
1089 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1090 MBX_NOWAIT);
1091
1092 if (retval != MBX_BUSY &&
1093 retval != MBX_SUCCESS) {
1094 mempool_free(pmboxq,
1095 phba->mbox_mem_pool);
1096 mod_timer(&phba->hb_tmofunc,
1097 jiffies +
1098 HZ * LPFC_HB_MBOX_INTERVAL);
1099 return;
1100 }
1101 phba->skipped_hb = 0;
1102 phba->hb_outstanding = 1;
1103 } else if (time_before_eq(phba->last_completion_time,
1104 phba->skipped_hb)) {
1105 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1106 "2857 Last completion time not "
1107 " updated in %d ms\n",
1108 jiffies_to_msecs(jiffies
1109 - phba->last_completion_time));
1110 } else
1111 phba->skipped_hb = jiffies;
1112
858c9f6c 1113 mod_timer(&phba->hb_tmofunc,
13815c83 1114 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
858c9f6c 1115 return;
13815c83
JS		 1116 } else {
1117 /*
1118 * If heart beat timeout called with hb_outstanding set
dcf2a4e0
JS		 1119 * we need to give the hb mailbox cmd a chance to
1120 * complete or TMO.
13815c83 1121 */
dcf2a4e0
JS		 1122 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1123 "0459 Adapter heartbeat still out"
1124 "standing:last compl time was %d ms.\n",
1125 jiffies_to_msecs(jiffies
1126 - phba->last_completion_time));
1127 mod_timer(&phba->hb_tmofunc,
1128 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
858c9f6c 1129 }
858c9f6c
JS		 1130 }
1131}
1132
e59058c4 1133/**
3621a710 1134 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
e59058c4
JS		 1135 * @phba: pointer to lpfc hba data structure.
1136 *
1137 * This routine is called to bring the HBA offline when HBA hardware error
1138 * other than Port Error 6 has been detected.
1139 **/
09372820
JS		 1140static void
1141lpfc_offline_eratt(struct lpfc_hba *phba)
1142{
1143 struct lpfc_sli *psli = &phba->sli;
1144
1145 spin_lock_irq(&phba->hbalock);
f4b4c68f 1146 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
09372820
JS		 1147 spin_unlock_irq(&phba->hbalock);
1148 lpfc_offline_prep(phba);
1149
1150 lpfc_offline(phba);
1151 lpfc_reset_barrier(phba);
f4b4c68f 1152 spin_lock_irq(&phba->hbalock);
09372820 1153 lpfc_sli_brdreset(phba);
f4b4c68f 1154 spin_unlock_irq(&phba->hbalock);
09372820
JS		 1155 lpfc_hba_down_post(phba);
1156 lpfc_sli_brdready(phba, HS_MBRDY);
1157 lpfc_unblock_mgmt_io(phba);
1158 phba->link_state = LPFC_HBA_ERROR;
1159 return;
1160}
1161
da0436e9
JS		 1162/**
1163 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1164 * @phba: pointer to lpfc hba data structure.
1165 *
1166 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1167 * other than Port Error 6 has been detected.
1168 **/
1169static void
1170lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1171{
1172 lpfc_offline_prep(phba);
1173 lpfc_offline(phba);
1174 lpfc_sli4_brdreset(phba);
1175 lpfc_hba_down_post(phba);
1176 lpfc_sli4_post_status_check(phba);
1177 lpfc_unblock_mgmt_io(phba);
1178 phba->link_state = LPFC_HBA_ERROR;
1179}
1180
a257bf90
JS		 1181/**
1182 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1183 * @phba: pointer to lpfc hba data structure.
1184 *
1185 * This routine is invoked to handle the deferred HBA hardware error
1186 * conditions. This type of error is indicated by HBA by setting ER1
1187 * and another ER bit in the host status register. The driver will
1188 * wait until the ER1 bit clears before handling the error condition.
1189 **/
1190static void
1191lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1192{
1193 uint32_t old_host_status = phba->work_hs;
1194 struct lpfc_sli_ring *pring;
1195 struct lpfc_sli *psli = &phba->sli;
1196
f4b4c68f
JS		 1197 /* If the pci channel is offline, ignore possible errors,
1198 * since we cannot communicate with the pci card anyway.
1199 */
1200 if (pci_channel_offline(phba->pcidev)) {
1201 spin_lock_irq(&phba->hbalock);
1202 phba->hba_flag &= ~DEFER_ERATT;
1203 spin_unlock_irq(&phba->hbalock);
1204 return;
1205 }
1206
a257bf90
JS		 1207 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1208 "0479 Deferred Adapter Hardware Error "
1209 "Data: x%x x%x x%x\n",
1210 phba->work_hs,
1211 phba->work_status[0], phba->work_status[1]);
1212
1213 spin_lock_irq(&phba->hbalock);
f4b4c68f 1214 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
a257bf90
JS		 1215 spin_unlock_irq(&phba->hbalock);
1216
1217
1218 /*
1219 * Firmware stops when it triggred erratt. That could cause the I/Os
1220 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1221 * SCSI layer retry it after re-establishing link.
1222 */
1223 pring = &psli->ring[psli->fcp_ring];
1224 lpfc_sli_abort_iocb_ring(phba, pring);
1225
1226 /*
1227 * There was a firmware error. Take the hba offline and then
1228 * attempt to restart it.
1229 */
1230 lpfc_offline_prep(phba);
1231 lpfc_offline(phba);
1232
1233 /* Wait for the ER1 bit to clear.*/
1234 while (phba->work_hs & HS_FFER1) {
1235 msleep(100);
9940b97b
JS		 1236 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1237 phba->work_hs = UNPLUG_ERR ;
1238 break;
1239 }
a257bf90
JS		 1240 /* If driver is unloading let the worker thread continue */
1241 if (phba->pport->load_flag & FC_UNLOADING) {
1242 phba->work_hs = 0;
1243 break;
1244 }
1245 }
1246
1247 /*
1248 * This is to ptrotect against a race condition in which
1249 * first write to the host attention register clear the
1250 * host status register.
1251 */
1252 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1253 phba->work_hs = old_host_status & ~HS_FFER1;
1254
3772a991 1255 spin_lock_irq(&phba->hbalock);
a257bf90 1256 phba->hba_flag &= ~DEFER_ERATT;
3772a991 1257 spin_unlock_irq(&phba->hbalock);
a257bf90
JS		 1258 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1259 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1260}
1261
3772a991
JS		 1262static void
1263lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1264{
1265 struct lpfc_board_event_header board_event;
1266 struct Scsi_Host *shost;
1267
1268 board_event.event_type = FC_REG_BOARD_EVENT;
1269 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1270 shost = lpfc_shost_from_vport(phba->pport);
1271 fc_host_post_vendor_event(shost, fc_get_event_number(),
1272 sizeof(board_event),
1273 (char *) &board_event,
1274 LPFC_NL_VENDOR_ID);
1275}
1276
e59058c4 1277/**
3772a991 1278 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
e59058c4
JS		 1279 * @phba: pointer to lpfc hba data structure.
1280 *
1281 * This routine is invoked to handle the following HBA hardware error
1282 * conditions:
1283 * 1 - HBA error attention interrupt
1284 * 2 - DMA ring index out of range
1285 * 3 - Mailbox command came back as unknown
1286 **/
3772a991
JS		 1287static void
1288lpfc_handle_eratt_s3(struct lpfc_hba *phba)
dea3101e 1289{
2e0fef85 1290 struct lpfc_vport *vport = phba->pport;
2e0fef85 1291 struct lpfc_sli *psli = &phba->sli;
dea3101e 1292 struct lpfc_sli_ring *pring;
d2873e4c 1293 uint32_t event_data;
57127f15
JS		 1294 unsigned long temperature;
1295 struct temp_event temp_event_data;
92d7f7b0 1296 struct Scsi_Host *shost;
2e0fef85 1297
8d63f375 1298 /* If the pci channel is offline, ignore possible errors,
3772a991
JS		 1299 * since we cannot communicate with the pci card anyway.
1300 */
1301 if (pci_channel_offline(phba->pcidev)) {
1302 spin_lock_irq(&phba->hbalock);
1303 phba->hba_flag &= ~DEFER_ERATT;
1304 spin_unlock_irq(&phba->hbalock);
8d63f375 1305 return;
3772a991
JS		 1306 }
1307
13815c83
JS		 1308 /* If resets are disabled then leave the HBA alone and return */
1309 if (!phba->cfg_enable_hba_reset)
1310 return;
dea3101e 1311
ea2151b4 1312 /* Send an internal error event to mgmt application */
3772a991 1313 lpfc_board_errevt_to_mgmt(phba);
ea2151b4 1314
a257bf90
JS		 1315 if (phba->hba_flag & DEFER_ERATT)
1316 lpfc_handle_deferred_eratt(phba);
1317
dcf2a4e0
JS		 1318 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1319 if (phba->work_hs & HS_FFER6)
1320 /* Re-establishing Link */
1321 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1322 "1301 Re-establishing Link "
1323 "Data: x%x x%x x%x\n",
1324 phba->work_hs, phba->work_status[0],
1325 phba->work_status[1]);
1326 if (phba->work_hs & HS_FFER8)
1327 /* Device Zeroization */
1328 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1329 "2861 Host Authentication device "
1330 "zeroization Data:x%x x%x x%x\n",
1331 phba->work_hs, phba->work_status[0],
1332 phba->work_status[1]);
58da1ffb 1333
92d7f7b0 1334 spin_lock_irq(&phba->hbalock);
f4b4c68f 1335 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
92d7f7b0 1336 spin_unlock_irq(&phba->hbalock);
dea3101e 1337
1338 /*
1339 * Firmware stops when it triggled erratt with HS_FFER6.
1340 * That could cause the I/Os dropped by the firmware.
1341 * Error iocb (I/O) on txcmplq and let the SCSI layer
1342 * retry it after re-establishing link.
1343 */
1344 pring = &psli->ring[psli->fcp_ring];
1345 lpfc_sli_abort_iocb_ring(phba, pring);
1346
dea3101e 1347 /*
1348 * There was a firmware error. Take the hba offline and then
1349 * attempt to restart it.
1350 */
46fa311e 1351 lpfc_offline_prep(phba);
dea3101e 1352 lpfc_offline(phba);
41415862 1353 lpfc_sli_brdrestart(phba);
dea3101e 1354 if (lpfc_online(phba) == 0) { /* Initialize the HBA */
46fa311e 1355 lpfc_unblock_mgmt_io(phba);
dea3101e 1356 return;
1357 }
46fa311e 1358 lpfc_unblock_mgmt_io(phba);
57127f15
JS		 1359 } else if (phba->work_hs & HS_CRIT_TEMP) {
1360 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1361 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1362 temp_event_data.event_code = LPFC_CRIT_TEMP;
1363 temp_event_data.data = (uint32_t)temperature;
1364
1365 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
d7c255b2 1366 "0406 Adapter maximum temperature exceeded "
57127f15
JS		 1367 "(%ld), taking this port offline "
1368 "Data: x%x x%x x%x\n",
1369 temperature, phba->work_hs,
1370 phba->work_status[0], phba->work_status[1]);
1371
1372 shost = lpfc_shost_from_vport(phba->pport);
1373 fc_host_post_vendor_event(shost, fc_get_event_number(),
1374 sizeof(temp_event_data),
1375 (char *) &temp_event_data,
1376 SCSI_NL_VID_TYPE_PCI
1377 | PCI_VENDOR_ID_EMULEX);
1378
7af67051 1379 spin_lock_irq(&phba->hbalock);
7af67051
JS		 1380 phba->over_temp_state = HBA_OVER_TEMP;
1381 spin_unlock_irq(&phba->hbalock);
09372820 1382 lpfc_offline_eratt(phba);
57127f15 1383
dea3101e 1384 } else {
1385 /* The if clause above forces this code path when the status
9399627f
JS		 1386 * failure is a value other than FFER6. Do not call the offline
1387 * twice. This is the adapter hardware error path.
dea3101e 1388 */
1389 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
e8b62011 1390 "0457 Adapter Hardware Error "
dea3101e 1391 "Data: x%x x%x x%x\n",
e8b62011 1392 phba->work_hs,
dea3101e 1393 phba->work_status[0], phba->work_status[1]);
1394
d2873e4c 1395 event_data = FC_REG_DUMP_EVENT;
92d7f7b0 1396 shost = lpfc_shost_from_vport(vport);
2e0fef85 1397 fc_host_post_vendor_event(shost, fc_get_event_number(),
d2873e4c
JS		 1398 sizeof(event_data), (char *) &event_data,
1399 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1400
09372820 1401 lpfc_offline_eratt(phba);
dea3101e 1402 }
9399627f 1403 return;
dea3101e 1404}
1405
da0436e9
JS		 1406/**
1407 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1408 * @phba: pointer to lpfc hba data structure.
1409 *
1410 * This routine is invoked to handle the SLI4 HBA hardware error attention
1411 * conditions.
1412 **/
1413static void
1414lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1415{
1416 struct lpfc_vport *vport = phba->pport;
1417 uint32_t event_data;
1418 struct Scsi_Host *shost;
2fcee4bf
JS		 1419 uint32_t if_type;
1420 struct lpfc_register portstat_reg;
73d91e50 1421 int rc;
da0436e9
JS		 1422
1423 /* If the pci channel is offline, ignore possible errors, since
1424 * we cannot communicate with the pci card anyway.
1425 */
1426 if (pci_channel_offline(phba->pcidev))
1427 return;
1428 /* If resets are disabled then leave the HBA alone and return */
1429 if (!phba->cfg_enable_hba_reset)
1430 return;
1431
1432 /* Send an internal error event to mgmt application */
1433 lpfc_board_errevt_to_mgmt(phba);
1434
1435 /* For now, the actual action for SLI4 device handling is not
1436 * specified yet, just treated it as adaptor hardware failure
1437 */
da0436e9
JS		 1438 event_data = FC_REG_DUMP_EVENT;
1439 shost = lpfc_shost_from_vport(vport);
1440 fc_host_post_vendor_event(shost, fc_get_event_number(),
1441 sizeof(event_data), (char *) &event_data,
1442 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1443
2fcee4bf
JS		 1444 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1445 switch (if_type) {
1446 case LPFC_SLI_INTF_IF_TYPE_0:
1447 lpfc_sli4_offline_eratt(phba);
1448 break;
1449 case LPFC_SLI_INTF_IF_TYPE_2:
1450 portstat_reg.word0 =
1451 readl(phba->sli4_hba.u.if_type2.STATUSregaddr);
1452
1453 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1454 /* TODO: Register for Overtemp async events. */
1455 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1456 "2889 Port Overtemperature event, "
026abb87 1457 "taking port offline\n");
2fcee4bf
JS		 1458 spin_lock_irq(&phba->hbalock);
1459 phba->over_temp_state = HBA_OVER_TEMP;
1460 spin_unlock_irq(&phba->hbalock);
1461 lpfc_sli4_offline_eratt(phba);
1462 return;
1463 }
73d91e50
JS		 1464 /*
1465 * On error status condition, driver need to wait for port
1466 * ready before performing reset.
1467 */
1468 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1469 if (!rc) {
079b5c91 1470 /* need reset: attempt for port recovery */
2fcee4bf
JS		 1471 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1472 "2887 Port Error: Attempting "
1473 "Port Recovery\n");
079b5c91
JS		 1474 lpfc_offline_prep(phba);
1475 lpfc_offline(phba);
1476 lpfc_sli_brdrestart(phba);
1477 if (lpfc_online(phba) == 0) {
1478 lpfc_unblock_mgmt_io(phba);
1479 return;
1480 }
1481 /* fall through for not able to recover */
2fcee4bf
JS		 1482 }
1483 lpfc_sli4_offline_eratt(phba);
1484 break;
1485 case LPFC_SLI_INTF_IF_TYPE_1:
1486 default:
1487 break;
1488 }
da0436e9
JS		 1489}
1490
1491/**
1492 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1493 * @phba: pointer to lpfc HBA data structure.
1494 *
1495 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1496 * routine from the API jump table function pointer from the lpfc_hba struct.
1497 *
1498 * Return codes
af901ca1 1499 * 0 - success.
da0436e9
JS		 1500 * Any other value - error.
1501 **/
1502void
1503lpfc_handle_eratt(struct lpfc_hba *phba)
1504{
1505 (*phba->lpfc_handle_eratt)(phba);
1506}
1507
e59058c4 1508/**
3621a710 1509 * lpfc_handle_latt - The HBA link event handler
e59058c4
JS		 1510 * @phba: pointer to lpfc hba data structure.
1511 *
1512 * This routine is invoked from the worker thread to handle a HBA host
1513 * attention link event.
1514 **/
dea3101e 1515void
2e0fef85 1516lpfc_handle_latt(struct lpfc_hba *phba)
dea3101e 1517{
2e0fef85
JS		 1518 struct lpfc_vport *vport = phba->pport;
1519 struct lpfc_sli *psli = &phba->sli;
dea3101e 1520 LPFC_MBOXQ_t *pmb;
1521 volatile uint32_t control;
1522 struct lpfc_dmabuf *mp;
09372820 1523 int rc = 0;
dea3101e 1524
1525 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
09372820
JS		 1526 if (!pmb) {
1527 rc = 1;
dea3101e 1528 goto lpfc_handle_latt_err_exit;
09372820 1529 }
dea3101e 1530
1531 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
09372820
JS		 1532 if (!mp) {
1533 rc = 2;
dea3101e 1534 goto lpfc_handle_latt_free_pmb;
09372820 1535 }
dea3101e 1536
1537 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
09372820
JS		 1538 if (!mp->virt) {
1539 rc = 3;
dea3101e 1540 goto lpfc_handle_latt_free_mp;
09372820 1541 }
dea3101e 1542
6281bfe0 1543 /* Cleanup any outstanding ELS commands */
549e55cd 1544 lpfc_els_flush_all_cmd(phba);
dea3101e 1545
1546 psli->slistat.link_event++;
76a95d75
JS		 1547 lpfc_read_topology(phba, pmb, mp);
1548 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2e0fef85 1549 pmb->vport = vport;
0d2b6b83
JS		 1550 /* Block ELS IOCBs until we have processed this mbox command */
1551 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
0b727fea 1552 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
09372820
JS		 1553 if (rc == MBX_NOT_FINISHED) {
1554 rc = 4;
14691150 1555 goto lpfc_handle_latt_free_mbuf;
09372820 1556 }
dea3101e 1557
1558 /* Clear Link Attention in HA REG */
2e0fef85 1559 spin_lock_irq(&phba->hbalock);
dea3101e 1560 writel(HA_LATT, phba->HAregaddr);
1561 readl(phba->HAregaddr); /* flush */
2e0fef85 1562 spin_unlock_irq(&phba->hbalock);
dea3101e 1563
1564 return;
1565
14691150 1566lpfc_handle_latt_free_mbuf:
0d2b6b83 1567 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
14691150 1568 lpfc_mbuf_free(phba, mp->virt, mp->phys);
dea3101e 1569lpfc_handle_latt_free_mp:
1570 kfree(mp);
1571lpfc_handle_latt_free_pmb:
1dcb58e5 1572 mempool_free(pmb, phba->mbox_mem_pool);
dea3101e 1573lpfc_handle_latt_err_exit:
1574 /* Enable Link attention interrupts */
2e0fef85 1575 spin_lock_irq(&phba->hbalock);
dea3101e 1576 psli->sli_flag |= LPFC_PROCESS_LA;
1577 control = readl(phba->HCregaddr);
1578 control |= HC_LAINT_ENA;
1579 writel(control, phba->HCregaddr);
1580 readl(phba->HCregaddr); /* flush */
1581
1582 /* Clear Link Attention in HA REG */
1583 writel(HA_LATT, phba->HAregaddr);
1584 readl(phba->HAregaddr); /* flush */
2e0fef85 1585 spin_unlock_irq(&phba->hbalock);
dea3101e 1586 lpfc_linkdown(phba);
2e0fef85 1587 phba->link_state = LPFC_HBA_ERROR;
dea3101e 1588
09372820
JS		 1589 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1590 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
dea3101e 1591
1592 return;
1593}
1594
e59058c4 1595/**
3621a710 1596 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
e59058c4
JS		 1597 * @phba: pointer to lpfc hba data structure.
1598 * @vpd: pointer to the vital product data.
1599 * @len: length of the vital product data in bytes.
1600 *
1601 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1602 * an array of characters. In this routine, the ModelName, ProgramType, and
1603 * ModelDesc, etc. fields of the phba data structure will be populated.
1604 *
1605 * Return codes
1606 * 0 - pointer to the VPD passed in is NULL
1607 * 1 - success
1608 **/
3772a991 1609int
2e0fef85 1610lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
dea3101e 1611{
1612 uint8_t lenlo, lenhi;
07da60c1 1613 int Length;
dea3101e 1614 int i, j;
1615 int finished = 0;
1616 int index = 0;
1617
1618 if (!vpd)
1619 return 0;
1620
1621 /* Vital Product */
ed957684 1622 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011 1623 "0455 Vital Product Data: x%x x%x x%x x%x\n",
dea3101e 1624 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1625 (uint32_t) vpd[3]);
74b72a59 1626 while (!finished && (index < (len - 4))) {
dea3101e 1627 switch (vpd[index]) {
1628 case 0x82:
74b72a59 1629 case 0x91:
dea3101e 1630 index += 1;
1631 lenlo = vpd[index];
1632 index += 1;
1633 lenhi = vpd[index];
1634 index += 1;
1635 i = ((((unsigned short)lenhi) << 8) + lenlo);
1636 index += i;
1637 break;
1638 case 0x90:
1639 index += 1;
1640 lenlo = vpd[index];
1641 index += 1;
1642 lenhi = vpd[index];
1643 index += 1;
1644 Length = ((((unsigned short)lenhi) << 8) + lenlo);
74b72a59
JW		 1645 if (Length > len - index)
1646 Length = len - index;
dea3101e 1647 while (Length > 0) {
1648 /* Look for Serial Number */
1649 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1650 index += 2;
1651 i = vpd[index];
1652 index += 1;
1653 j = 0;
1654 Length -= (3+i);
1655 while(i--) {
1656 phba->SerialNumber[j++] = vpd[index++];
1657 if (j == 31)
1658 break;
1659 }
1660 phba->SerialNumber[j] = 0;
1661 continue;
1662 }
1663 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1664 phba->vpd_flag |= VPD_MODEL_DESC;
1665 index += 2;
1666 i = vpd[index];
1667 index += 1;
1668 j = 0;
1669 Length -= (3+i);
1670 while(i--) {
1671 phba->ModelDesc[j++] = vpd[index++];
1672 if (j == 255)
1673 break;
1674 }
1675 phba->ModelDesc[j] = 0;
1676 continue;
1677 }
1678 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1679 phba->vpd_flag |= VPD_MODEL_NAME;
1680 index += 2;
1681 i = vpd[index];
1682 index += 1;
1683 j = 0;
1684 Length -= (3+i);
1685 while(i--) {
1686 phba->ModelName[j++] = vpd[index++];
1687 if (j == 79)
1688 break;
1689 }
1690 phba->ModelName[j] = 0;
1691 continue;
1692 }
1693 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1694 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1695 index += 2;
1696 i = vpd[index];
1697 index += 1;
1698 j = 0;
1699 Length -= (3+i);
1700 while(i--) {
1701 phba->ProgramType[j++] = vpd[index++];
1702 if (j == 255)
1703 break;
1704 }
1705 phba->ProgramType[j] = 0;
1706 continue;
1707 }
1708 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1709 phba->vpd_flag |= VPD_PORT;
1710 index += 2;
1711 i = vpd[index];
1712 index += 1;
1713 j = 0;
1714 Length -= (3+i);
1715 while(i--) {
cd1c8301
JS		 1716 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1717 (phba->sli4_hba.pport_name_sta ==
1718 LPFC_SLI4_PPNAME_GET)) {
1719 j++;
1720 index++;
1721 } else
1722 phba->Port[j++] = vpd[index++];
1723 if (j == 19)
1724 break;
dea3101e 1725 }
cd1c8301
JS		 1726 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1727 (phba->sli4_hba.pport_name_sta ==
1728 LPFC_SLI4_PPNAME_NON))
1729 phba->Port[j] = 0;
dea3101e 1730 continue;
1731 }
1732 else {
1733 index += 2;
1734 i = vpd[index];
1735 index += 1;
1736 index += i;
1737 Length -= (3 + i);
1738 }
1739 }
1740 finished = 0;
1741 break;
1742 case 0x78:
1743 finished = 1;
1744 break;
1745 default:
1746 index ++;
1747 break;
1748 }
74b72a59 1749 }
dea3101e 1750
1751 return(1);
1752}
1753
e59058c4 1754/**
3621a710 1755 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
e59058c4
JS		 1756 * @phba: pointer to lpfc hba data structure.
1757 * @mdp: pointer to the data structure to hold the derived model name.
1758 * @descp: pointer to the data structure to hold the derived description.
1759 *
1760 * This routine retrieves HBA's description based on its registered PCI device
1761 * ID. The @descp passed into this function points to an array of 256 chars. It
1762 * shall be returned with the model name, maximum speed, and the host bus type.
1763 * The @mdp passed into this function points to an array of 80 chars. When the
1764 * function returns, the @mdp will be filled with the model name.
1765 **/
dea3101e 1766static void
2e0fef85 1767lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
dea3101e 1768{
1769 lpfc_vpd_t *vp;
fefcb2b6 1770 uint16_t dev_id = phba->pcidev->device;
74b72a59 1771 int max_speed;
84774a4d 1772 int GE = 0;
da0436e9 1773 int oneConnect = 0; /* default is not a oneConnect */
74b72a59 1774 struct {
a747c9ce
JS		 1775 char *name;
1776 char *bus;
1777 char *function;
1778 } m = {"<Unknown>", "", ""};
74b72a59
JW		 1779
1780 if (mdp && mdp[0] != '\0'
1781 && descp && descp[0] != '\0')
1782 return;
1783
c0c11512
JS		 1784 if (phba->lmt & LMT_16Gb)
1785 max_speed = 16;
1786 else if (phba->lmt & LMT_10Gb)
74b72a59
JW		 1787 max_speed = 10;
1788 else if (phba->lmt & LMT_8Gb)
1789 max_speed = 8;
1790 else if (phba->lmt & LMT_4Gb)
1791 max_speed = 4;
1792 else if (phba->lmt & LMT_2Gb)
1793 max_speed = 2;
1794 else
1795 max_speed = 1;
dea3101e 1796
1797 vp = &phba->vpd;
dea3101e 1798
e4adb204 1799 switch (dev_id) {
06325e74 1800 case PCI_DEVICE_ID_FIREFLY:
a747c9ce 1801 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
06325e74 1802 break;
dea3101e 1803 case PCI_DEVICE_ID_SUPERFLY:
1804 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
a747c9ce
JS		 1805 m = (typeof(m)){"LP7000", "PCI",
1806 "Fibre Channel Adapter"};
dea3101e 1807 else
a747c9ce
JS		 1808 m = (typeof(m)){"LP7000E", "PCI",
1809 "Fibre Channel Adapter"};
dea3101e 1810 break;
1811 case PCI_DEVICE_ID_DRAGONFLY:
a747c9ce
JS		 1812 m = (typeof(m)){"LP8000", "PCI",
1813 "Fibre Channel Adapter"};
dea3101e 1814 break;
1815 case PCI_DEVICE_ID_CENTAUR:
1816 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
a747c9ce
JS		 1817 m = (typeof(m)){"LP9002", "PCI",
1818 "Fibre Channel Adapter"};
dea3101e 1819 else
a747c9ce
JS		 1820 m = (typeof(m)){"LP9000", "PCI",
1821 "Fibre Channel Adapter"};
dea3101e 1822 break;
1823 case PCI_DEVICE_ID_RFLY:
a747c9ce
JS		 1824 m = (typeof(m)){"LP952", "PCI",
1825 "Fibre Channel Adapter"};
dea3101e 1826 break;
1827 case PCI_DEVICE_ID_PEGASUS:
a747c9ce
JS		 1828 m = (typeof(m)){"LP9802", "PCI-X",
1829 "Fibre Channel Adapter"};
dea3101e 1830 break;
1831 case PCI_DEVICE_ID_THOR:
a747c9ce
JS		 1832 m = (typeof(m)){"LP10000", "PCI-X",
1833 "Fibre Channel Adapter"};
dea3101e 1834 break;
1835 case PCI_DEVICE_ID_VIPER:
a747c9ce
JS		 1836 m = (typeof(m)){"LPX1000", "PCI-X",
1837 "Fibre Channel Adapter"};
dea3101e 1838 break;
1839 case PCI_DEVICE_ID_PFLY:
a747c9ce
JS		 1840 m = (typeof(m)){"LP982", "PCI-X",
1841 "Fibre Channel Adapter"};
dea3101e 1842 break;
1843 case PCI_DEVICE_ID_TFLY:
a747c9ce
JS		 1844 m = (typeof(m)){"LP1050", "PCI-X",
1845 "Fibre Channel Adapter"};
dea3101e 1846 break;
1847 case PCI_DEVICE_ID_HELIOS:
a747c9ce
JS		 1848 m = (typeof(m)){"LP11000", "PCI-X2",
1849 "Fibre Channel Adapter"};
dea3101e 1850 break;
e4adb204 1851 case PCI_DEVICE_ID_HELIOS_SCSP:
a747c9ce
JS		 1852 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1853 "Fibre Channel Adapter"};
e4adb204
JSEC		 1854 break;
1855 case PCI_DEVICE_ID_HELIOS_DCSP:
a747c9ce
JS		 1856 m = (typeof(m)){"LP11002-SP", "PCI-X2",
1857 "Fibre Channel Adapter"};
e4adb204
JSEC		 1858 break;
1859 case PCI_DEVICE_ID_NEPTUNE:
a747c9ce 1860 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 1861 break;
1862 case PCI_DEVICE_ID_NEPTUNE_SCSP:
a747c9ce 1863 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 1864 break;
1865 case PCI_DEVICE_ID_NEPTUNE_DCSP:
a747c9ce 1866 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
e4adb204 1867 break;
dea3101e 1868 case PCI_DEVICE_ID_BMID:
a747c9ce 1869 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
dea3101e 1870 break;
1871 case PCI_DEVICE_ID_BSMB:
a747c9ce 1872 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
dea3101e 1873 break;
1874 case PCI_DEVICE_ID_ZEPHYR:
a747c9ce 1875 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
dea3101e 1876 break;
e4adb204 1877 case PCI_DEVICE_ID_ZEPHYR_SCSP:
a747c9ce 1878 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
e4adb204
JSEC		 1879 break;
1880 case PCI_DEVICE_ID_ZEPHYR_DCSP:
a747c9ce 1881 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
a257bf90 1882 GE = 1;
e4adb204 1883 break;
dea3101e 1884 case PCI_DEVICE_ID_ZMID:
a747c9ce 1885 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
dea3101e 1886 break;
1887 case PCI_DEVICE_ID_ZSMB:
a747c9ce 1888 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
dea3101e 1889 break;
1890 case PCI_DEVICE_ID_LP101:
a747c9ce 1891 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
dea3101e 1892 break;
1893 case PCI_DEVICE_ID_LP10000S:
a747c9ce 1894 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
06325e74 1895 break;
e4adb204 1896 case PCI_DEVICE_ID_LP11000S:
a747c9ce 1897 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
18a3b596 1898 break;
e4adb204 1899 case PCI_DEVICE_ID_LPE11000S:
a747c9ce 1900 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
5cc36b3c 1901 break;
b87eab38 1902 case PCI_DEVICE_ID_SAT:
a747c9ce 1903 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1904 break;
1905 case PCI_DEVICE_ID_SAT_MID:
a747c9ce 1906 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1907 break;
1908 case PCI_DEVICE_ID_SAT_SMB:
a747c9ce 1909 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1910 break;
1911 case PCI_DEVICE_ID_SAT_DCSP:
a747c9ce 1912 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1913 break;
1914 case PCI_DEVICE_ID_SAT_SCSP:
a747c9ce 1915 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
b87eab38
JS		 1916 break;
1917 case PCI_DEVICE_ID_SAT_S:
a747c9ce 1918 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
b87eab38 1919 break;
84774a4d 1920 case PCI_DEVICE_ID_HORNET:
a747c9ce 1921 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
84774a4d
JS		 1922 GE = 1;
1923 break;
1924 case PCI_DEVICE_ID_PROTEUS_VF:
a747c9ce
JS		 1925 m = (typeof(m)){"LPev12000", "PCIe IOV",
1926 "Fibre Channel Adapter"};
84774a4d
JS		 1927 break;
1928 case PCI_DEVICE_ID_PROTEUS_PF:
a747c9ce
JS		 1929 m = (typeof(m)){"LPev12000", "PCIe IOV",
1930 "Fibre Channel Adapter"};
84774a4d
JS		 1931 break;
1932 case PCI_DEVICE_ID_PROTEUS_S:
a747c9ce
JS		 1933 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1934 "Fibre Channel Adapter"};
84774a4d 1935 break;
da0436e9
JS		 1936 case PCI_DEVICE_ID_TIGERSHARK:
1937 oneConnect = 1;
a747c9ce 1938 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
da0436e9 1939 break;
a747c9ce 1940 case PCI_DEVICE_ID_TOMCAT:
6669f9bb 1941 oneConnect = 1;
a747c9ce
JS		 1942 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
1943 break;
1944 case PCI_DEVICE_ID_FALCON:
1945 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
1946 "EmulexSecure Fibre"};
6669f9bb 1947 break;
98fc5dd9
JS		 1948 case PCI_DEVICE_ID_BALIUS:
1949 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
1950 "Fibre Channel Adapter"};
1951 break;
085c647c 1952 case PCI_DEVICE_ID_LANCER_FC:
c0c11512
JS		 1953 case PCI_DEVICE_ID_LANCER_FC_VF:
1954 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
085c647c
JS		 1955 break;
1956 case PCI_DEVICE_ID_LANCER_FCOE:
c0c11512 1957 case PCI_DEVICE_ID_LANCER_FCOE_VF:
085c647c 1958 oneConnect = 1;
079b5c91 1959 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
085c647c 1960 break;
5cc36b3c 1961 default:
a747c9ce 1962 m = (typeof(m)){"Unknown", "", ""};
e4adb204 1963 break;
dea3101e 1964 }
74b72a59
JW		 1965
1966 if (mdp && mdp[0] == '\0')
1967 snprintf(mdp, 79,"%s", m.name);
c0c11512
JS		 1968 /*
1969 * oneConnect hba requires special processing, they are all initiators
da0436e9
JS		 1970 * and we put the port number on the end
1971 */
1972 if (descp && descp[0] == '\0') {
1973 if (oneConnect)
1974 snprintf(descp, 255,
a747c9ce
JS		 1975 "Emulex OneConnect %s, %s Initiator, Port %s",
1976 m.name, m.function,
da0436e9
JS		 1977 phba->Port);
1978 else
1979 snprintf(descp, 255,
1980 "Emulex %s %d%s %s %s",
a747c9ce
JS		 1981 m.name, max_speed, (GE) ? "GE" : "Gb",
1982 m.bus, m.function);
da0436e9 1983 }
dea3101e 1984}
1985
e59058c4 1986/**
3621a710 1987 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
e59058c4
JS		 1988 * @phba: pointer to lpfc hba data structure.
1989 * @pring: pointer to a IOCB ring.
1990 * @cnt: the number of IOCBs to be posted to the IOCB ring.
1991 *
1992 * This routine posts a given number of IOCBs with the associated DMA buffer
1993 * descriptors specified by the cnt argument to the given IOCB ring.
1994 *
1995 * Return codes
1996 * The number of IOCBs NOT able to be posted to the IOCB ring.
1997 **/
dea3101e 1998int
495a714c 1999lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
dea3101e 2000{
2001 IOCB_t *icmd;
0bd4ca25 2002 struct lpfc_iocbq *iocb;
dea3101e 2003 struct lpfc_dmabuf *mp1, *mp2;
2004
2005 cnt += pring->missbufcnt;
2006
2007 /* While there are buffers to post */
2008 while (cnt > 0) {
2009 /* Allocate buffer for command iocb */
0bd4ca25 2010 iocb = lpfc_sli_get_iocbq(phba);
dea3101e 2011 if (iocb == NULL) {
2012 pring->missbufcnt = cnt;
2013 return cnt;
2014 }
dea3101e 2015 icmd = &iocb->iocb;
2016
2017 /* 2 buffers can be posted per command */
2018 /* Allocate buffer to post */
2019 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2020 if (mp1)
98c9ea5c
JS		 2021 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2022 if (!mp1 || !mp1->virt) {
c9475cb0 2023 kfree(mp1);
604a3e30 2024 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2025 pring->missbufcnt = cnt;
2026 return cnt;
2027 }
2028
2029 INIT_LIST_HEAD(&mp1->list);
2030 /* Allocate buffer to post */
2031 if (cnt > 1) {
2032 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2033 if (mp2)
2034 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2035 &mp2->phys);
98c9ea5c 2036 if (!mp2 || !mp2->virt) {
c9475cb0 2037 kfree(mp2);
dea3101e 2038 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2039 kfree(mp1);
604a3e30 2040 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2041 pring->missbufcnt = cnt;
2042 return cnt;
2043 }
2044
2045 INIT_LIST_HEAD(&mp2->list);
2046 } else {
2047 mp2 = NULL;
2048 }
2049
2050 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2051 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2052 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2053 icmd->ulpBdeCount = 1;
2054 cnt--;
2055 if (mp2) {
2056 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2057 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2058 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2059 cnt--;
2060 icmd->ulpBdeCount = 2;
2061 }
2062
2063 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2064 icmd->ulpLe = 1;
2065
3772a991
JS		 2066 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2067 IOCB_ERROR) {
dea3101e 2068 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2069 kfree(mp1);
2070 cnt++;
2071 if (mp2) {
2072 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2073 kfree(mp2);
2074 cnt++;
2075 }
604a3e30 2076 lpfc_sli_release_iocbq(phba, iocb);
dea3101e 2077 pring->missbufcnt = cnt;
dea3101e 2078 return cnt;
2079 }
dea3101e 2080 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
92d7f7b0 2081 if (mp2)
dea3101e 2082 lpfc_sli_ringpostbuf_put(phba, pring, mp2);
dea3101e 2083 }
2084 pring->missbufcnt = 0;
2085 return 0;
2086}
2087
e59058c4 2088/**
3621a710 2089 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
e59058c4
JS		 2090 * @phba: pointer to lpfc hba data structure.
2091 *
2092 * This routine posts initial receive IOCB buffers to the ELS ring. The
2093 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2094 * set to 64 IOCBs.
2095 *
2096 * Return codes
2097 * 0 - success (currently always success)
2098 **/
dea3101e 2099static int
2e0fef85 2100lpfc_post_rcv_buf(struct lpfc_hba *phba)
dea3101e 2101{
2102 struct lpfc_sli *psli = &phba->sli;
2103
2104 /* Ring 0, ELS / CT buffers */
495a714c 2105 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
dea3101e 2106 /* Ring 2 - FCP no buffers needed */
2107
2108 return 0;
2109}
2110
2111#define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2112
e59058c4 2113/**
3621a710 2114 * lpfc_sha_init - Set up initial array of hash table entries
e59058c4
JS		 2115 * @HashResultPointer: pointer to an array as hash table.
2116 *
2117 * This routine sets up the initial values to the array of hash table entries
2118 * for the LC HBAs.
2119 **/
dea3101e 2120static void
2121lpfc_sha_init(uint32_t * HashResultPointer)
2122{
2123 HashResultPointer[0] = 0x67452301;
2124 HashResultPointer[1] = 0xEFCDAB89;
2125 HashResultPointer[2] = 0x98BADCFE;
2126 HashResultPointer[3] = 0x10325476;
2127 HashResultPointer[4] = 0xC3D2E1F0;
2128}
2129
e59058c4 2130/**
3621a710 2131 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
e59058c4
JS		 2132 * @HashResultPointer: pointer to an initial/result hash table.
2133 * @HashWorkingPointer: pointer to an working hash table.
2134 *
2135 * This routine iterates an initial hash table pointed by @HashResultPointer
2136 * with the values from the working hash table pointeed by @HashWorkingPointer.
2137 * The results are putting back to the initial hash table, returned through
2138 * the @HashResultPointer as the result hash table.
2139 **/
dea3101e 2140static void
2141lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2142{
2143 int t;
2144 uint32_t TEMP;
2145 uint32_t A, B, C, D, E;
2146 t = 16;
2147 do {
2148 HashWorkingPointer[t] =
2149 S(1,
2150 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2151 8] ^
2152 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2153 } while (++t <= 79);
2154 t = 0;
2155 A = HashResultPointer[0];
2156 B = HashResultPointer[1];
2157 C = HashResultPointer[2];
2158 D = HashResultPointer[3];
2159 E = HashResultPointer[4];
2160
2161 do {
2162 if (t < 20) {
2163 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2164 } else if (t < 40) {
2165 TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2166 } else if (t < 60) {
2167 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2168 } else {
2169 TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2170 }
2171 TEMP += S(5, A) + E + HashWorkingPointer[t];
2172 E = D;
2173 D = C;
2174 C = S(30, B);
2175 B = A;
2176 A = TEMP;
2177 } while (++t <= 79);
2178
2179 HashResultPointer[0] += A;
2180 HashResultPointer[1] += B;
2181 HashResultPointer[2] += C;
2182 HashResultPointer[3] += D;
2183 HashResultPointer[4] += E;
2184
2185}
2186
e59058c4 2187/**
3621a710 2188 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
e59058c4
JS		 2189 * @RandomChallenge: pointer to the entry of host challenge random number array.
2190 * @HashWorking: pointer to the entry of the working hash array.
2191 *
2192 * This routine calculates the working hash array referred by @HashWorking
2193 * from the challenge random numbers associated with the host, referred by
2194 * @RandomChallenge. The result is put into the entry of the working hash
2195 * array and returned by reference through @HashWorking.
2196 **/
dea3101e 2197static void
2198lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2199{
2200 *HashWorking = (*RandomChallenge ^ *HashWorking);
2201}
2202
e59058c4 2203/**
3621a710 2204 * lpfc_hba_init - Perform special handling for LC HBA initialization
e59058c4
JS		 2205 * @phba: pointer to lpfc hba data structure.
2206 * @hbainit: pointer to an array of unsigned 32-bit integers.
2207 *
2208 * This routine performs the special handling for LC HBA initialization.
2209 **/
dea3101e 2210void
2211lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2212{
2213 int t;
2214 uint32_t *HashWorking;
2e0fef85 2215 uint32_t *pwwnn = (uint32_t *) phba->wwnn;
dea3101e 2216
bbfbbbc1 2217 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
dea3101e 2218 if (!HashWorking)
2219 return;
2220
dea3101e 2221 HashWorking[0] = HashWorking[78] = *pwwnn++;
2222 HashWorking[1] = HashWorking[79] = *pwwnn;
2223
2224 for (t = 0; t < 7; t++)
2225 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2226
2227 lpfc_sha_init(hbainit);
2228 lpfc_sha_iterate(hbainit, HashWorking);
2229 kfree(HashWorking);
2230}
2231
e59058c4 2232/**
3621a710 2233 * lpfc_cleanup - Performs vport cleanups before deleting a vport
e59058c4
JS		 2234 * @vport: pointer to a virtual N_Port data structure.
2235 *
2236 * This routine performs the necessary cleanups before deleting the @vport.
2237 * It invokes the discovery state machine to perform necessary state
2238 * transitions and to release the ndlps associated with the @vport. Note,
2239 * the physical port is treated as @vport 0.
2240 **/
87af33fe 2241void
2e0fef85 2242lpfc_cleanup(struct lpfc_vport *vport)
dea3101e 2243{
87af33fe 2244 struct lpfc_hba *phba = vport->phba;
dea3101e 2245 struct lpfc_nodelist *ndlp, *next_ndlp;
a8adb832 2246 int i = 0;
dea3101e 2247
87af33fe
JS		 2248 if (phba->link_state > LPFC_LINK_DOWN)
2249 lpfc_port_link_failure(vport);
2250
2251 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
e47c9093
JS		 2252 if (!NLP_CHK_NODE_ACT(ndlp)) {
2253 ndlp = lpfc_enable_node(vport, ndlp,
2254 NLP_STE_UNUSED_NODE);
2255 if (!ndlp)
2256 continue;
2257 spin_lock_irq(&phba->ndlp_lock);
2258 NLP_SET_FREE_REQ(ndlp);
2259 spin_unlock_irq(&phba->ndlp_lock);
2260 /* Trigger the release of the ndlp memory */
2261 lpfc_nlp_put(ndlp);
2262 continue;
2263 }
2264 spin_lock_irq(&phba->ndlp_lock);
2265 if (NLP_CHK_FREE_REQ(ndlp)) {
2266 /* The ndlp should not be in memory free mode already */
2267 spin_unlock_irq(&phba->ndlp_lock);
2268 continue;
2269 } else
2270 /* Indicate request for freeing ndlp memory */
2271 NLP_SET_FREE_REQ(ndlp);
2272 spin_unlock_irq(&phba->ndlp_lock);
2273
58da1ffb
JS		 2274 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2275 ndlp->nlp_DID == Fabric_DID) {
2276 /* Just free up ndlp with Fabric_DID for vports */
2277 lpfc_nlp_put(ndlp);
2278 continue;
2279 }
2280
87af33fe
JS		 2281 if (ndlp->nlp_type & NLP_FABRIC)
2282 lpfc_disc_state_machine(vport, ndlp, NULL,
2283 NLP_EVT_DEVICE_RECOVERY);
e47c9093 2284
87af33fe
JS		 2285 lpfc_disc_state_machine(vport, ndlp, NULL,
2286 NLP_EVT_DEVICE_RM);
495a714c 2287
87af33fe
JS		 2288 }
2289
a8adb832
JS		 2290 /* At this point, ALL ndlp's should be gone
2291 * because of the previous NLP_EVT_DEVICE_RM.
2292 * Lets wait for this to happen, if needed.
2293 */
87af33fe 2294 while (!list_empty(&vport->fc_nodes)) {
a8adb832 2295 if (i++ > 3000) {
87af33fe 2296 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
a8adb832 2297 "0233 Nodelist not empty\n");
e47c9093
JS		 2298 list_for_each_entry_safe(ndlp, next_ndlp,
2299 &vport->fc_nodes, nlp_listp) {
2300 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2301 LOG_NODE,
d7c255b2 2302 "0282 did:x%x ndlp:x%p "
e47c9093
JS		 2303 "usgmap:x%x refcnt:%d\n",
2304 ndlp->nlp_DID, (void *)ndlp,
2305 ndlp->nlp_usg_map,
2306 atomic_read(
2307 &ndlp->kref.refcount));
2308 }
a8adb832 2309 break;
87af33fe 2310 }
a8adb832
JS		 2311
2312 /* Wait for any activity on ndlps to settle */
2313 msleep(10);
87af33fe 2314 }
1151e3ec 2315 lpfc_cleanup_vports_rrqs(vport, NULL);
dea3101e 2316}
2317
e59058c4 2318/**
3621a710 2319 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
e59058c4
JS		 2320 * @vport: pointer to a virtual N_Port data structure.
2321 *
2322 * This routine stops all the timers associated with a @vport. This function
2323 * is invoked before disabling or deleting a @vport. Note that the physical
2324 * port is treated as @vport 0.
2325 **/
92d7f7b0
JS		 2326void
2327lpfc_stop_vport_timers(struct lpfc_vport *vport)
dea3101e 2328{
92d7f7b0
JS		 2329 del_timer_sync(&vport->els_tmofunc);
2330 del_timer_sync(&vport->fc_fdmitmo);
92494144 2331 del_timer_sync(&vport->delayed_disc_tmo);
92d7f7b0
JS		 2332 lpfc_can_disctmo(vport);
2333 return;
dea3101e 2334}
2335
ecfd03c6
JS		 2336/**
2337 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2338 * @phba: pointer to lpfc hba data structure.
2339 *
2340 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2341 * caller of this routine should already hold the host lock.
2342 **/
2343void
2344__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2345{
5ac6b303
JS		 2346 /* Clear pending FCF rediscovery wait flag */
2347 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2348
ecfd03c6
JS		 2349 /* Now, try to stop the timer */
2350 del_timer(&phba->fcf.redisc_wait);
2351}
2352
2353/**
2354 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2355 * @phba: pointer to lpfc hba data structure.
2356 *
2357 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2358 * checks whether the FCF rediscovery wait timer is pending with the host
2359 * lock held before proceeding with disabling the timer and clearing the
2360 * wait timer pendig flag.
2361 **/
2362void
2363lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2364{
2365 spin_lock_irq(&phba->hbalock);
2366 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2367 /* FCF rediscovery timer already fired or stopped */
2368 spin_unlock_irq(&phba->hbalock);
2369 return;
2370 }
2371 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
5ac6b303
JS		 2372 /* Clear failover in progress flags */
2373 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
ecfd03c6
JS		 2374 spin_unlock_irq(&phba->hbalock);
2375}
2376
e59058c4 2377/**
3772a991 2378 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
e59058c4
JS		 2379 * @phba: pointer to lpfc hba data structure.
2380 *
2381 * This routine stops all the timers associated with a HBA. This function is
2382 * invoked before either putting a HBA offline or unloading the driver.
2383 **/
3772a991
JS		 2384void
2385lpfc_stop_hba_timers(struct lpfc_hba *phba)
dea3101e 2386{
51ef4c26 2387 lpfc_stop_vport_timers(phba->pport);
2e0fef85 2388 del_timer_sync(&phba->sli.mbox_tmo);
92d7f7b0 2389 del_timer_sync(&phba->fabric_block_timer);
9399627f 2390 del_timer_sync(&phba->eratt_poll);
3772a991 2391 del_timer_sync(&phba->hb_tmofunc);
1151e3ec
JS		 2392 if (phba->sli_rev == LPFC_SLI_REV4) {
2393 del_timer_sync(&phba->rrq_tmr);
2394 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2395 }
3772a991
JS		 2396 phba->hb_outstanding = 0;
2397
2398 switch (phba->pci_dev_grp) {
2399 case LPFC_PCI_DEV_LP:
2400 /* Stop any LightPulse device specific driver timers */
2401 del_timer_sync(&phba->fcp_poll_timer);
2402 break;
2403 case LPFC_PCI_DEV_OC:
2404 /* Stop any OneConnect device sepcific driver timers */
ecfd03c6 2405 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3772a991
JS		 2406 break;
2407 default:
2408 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2409 "0297 Invalid device group (x%x)\n",
2410 phba->pci_dev_grp);
2411 break;
2412 }
2e0fef85 2413 return;
dea3101e 2414}
2415
e59058c4 2416/**
3621a710 2417 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
e59058c4
JS		 2418 * @phba: pointer to lpfc hba data structure.
2419 *
2420 * This routine marks a HBA's management interface as blocked. Once the HBA's
2421 * management interface is marked as blocked, all the user space access to
2422 * the HBA, whether they are from sysfs interface or libdfc interface will
2423 * all be blocked. The HBA is set to block the management interface when the
2424 * driver prepares the HBA interface for online or offline.
2425 **/
a6ababd2
AB		 2426static void
2427lpfc_block_mgmt_io(struct lpfc_hba * phba)
2428{
2429 unsigned long iflag;
6e7288d9
JS		 2430 uint8_t actcmd = MBX_HEARTBEAT;
2431 unsigned long timeout;
2432
a183a15f 2433 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
a6ababd2
AB		 2434 spin_lock_irqsave(&phba->hbalock, iflag);
2435 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
a183a15f 2436 if (phba->sli.mbox_active) {
6e7288d9 2437 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
a183a15f
JS		 2438 /* Determine how long we might wait for the active mailbox
2439 * command to be gracefully completed by firmware.
2440 */
2441 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2442 phba->sli.mbox_active) * 1000) + jiffies;
2443 }
a6ababd2 2444 spin_unlock_irqrestore(&phba->hbalock, iflag);
a183a15f 2445
6e7288d9
JS		 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
ff78d8f9
JS		 2656/**
2657 * lpfc_scsi_buf_update - Update the scsi_buffers that are already allocated.
2658 * @phba: pointer to lpfc hba data structure.
2659 *
2660 * This routine goes through all the scsi buffers in the system and updates the
2661 * Physical XRIs assigned to the SCSI buffer because these may change after any
2662 * firmware reset
2663 *
2664 * Return codes
2665 * 0 - successful (for now, it always returns 0)
2666 **/
2667int
2668lpfc_scsi_buf_update(struct lpfc_hba *phba)
2669{
2670 struct lpfc_scsi_buf *sb, *sb_next;
2671
2672 spin_lock_irq(&phba->hbalock);
2673 spin_lock(&phba->scsi_buf_list_lock);
2674 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list)
2675 sb->cur_iocbq.sli4_xritag =
2676 phba->sli4_hba.xri_ids[sb->cur_iocbq.sli4_lxritag];
2677 spin_unlock(&phba->scsi_buf_list_lock);
2678 spin_unlock_irq(&phba->hbalock);
2679 return 0;
2680}
2681
e59058c4 2682/**
3621a710 2683 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
e59058c4
JS		 2684 * @phba: pointer to lpfc hba data structure.
2685 *
2686 * This routine is to free all the SCSI buffers and IOCBs from the driver
2687 * list back to kernel. It is called from lpfc_pci_remove_one to free
2688 * the internal resources before the device is removed from the system.
2689 *
2690 * Return codes
2691 * 0 - successful (for now, it always returns 0)
2692 **/
dea3101e 2693static int
2e0fef85 2694lpfc_scsi_free(struct lpfc_hba *phba)
dea3101e 2695{
2696 struct lpfc_scsi_buf *sb, *sb_next;
2697 struct lpfc_iocbq *io, *io_next;
2698
2e0fef85 2699 spin_lock_irq(&phba->hbalock);
dea3101e 2700 /* Release all the lpfc_scsi_bufs maintained by this host. */
1c6f4ef5 2701 spin_lock(&phba->scsi_buf_list_lock);
dea3101e 2702 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2703 list_del(&sb->list);
2704 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
92d7f7b0 2705 sb->dma_handle);
dea3101e 2706 kfree(sb);
2707 phba->total_scsi_bufs--;
2708 }
1c6f4ef5 2709 spin_unlock(&phba->scsi_buf_list_lock);
dea3101e 2710
2711 /* Release all the lpfc_iocbq entries maintained by this host. */
2712 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2713 list_del(&io->list);
2714 kfree(io);
2715 phba->total_iocbq_bufs--;
2716 }
6d368e53 2717
2e0fef85 2718 spin_unlock_irq(&phba->hbalock);
dea3101e 2719 return 0;
2720}
2721
e59058c4 2722/**
3621a710 2723 * lpfc_create_port - Create an FC port
e59058c4
JS		 2724 * @phba: pointer to lpfc hba data structure.
2725 * @instance: a unique integer ID to this FC port.
2726 * @dev: pointer to the device data structure.
2727 *
2728 * This routine creates a FC port for the upper layer protocol. The FC port
2729 * can be created on top of either a physical port or a virtual port provided
2730 * by the HBA. This routine also allocates a SCSI host data structure (shost)
2731 * and associates the FC port created before adding the shost into the SCSI
2732 * layer.
2733 *
2734 * Return codes
2735 * @vport - pointer to the virtual N_Port data structure.
2736 * NULL - port create failed.
2737 **/
2e0fef85 2738struct lpfc_vport *
3de2a653 2739lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
47a8617c 2740{
2e0fef85
JS		 2741 struct lpfc_vport *vport;
2742 struct Scsi_Host *shost;
2743 int error = 0;
47a8617c 2744
3de2a653
JS		 2745 if (dev != &phba->pcidev->dev)
2746 shost = scsi_host_alloc(&lpfc_vport_template,
2747 sizeof(struct lpfc_vport));
2748 else
2749 shost = scsi_host_alloc(&lpfc_template,
2750 sizeof(struct lpfc_vport));
2e0fef85
JS		 2751 if (!shost)
2752 goto out;
47a8617c 2753
2e0fef85
JS		 2754 vport = (struct lpfc_vport *) shost->hostdata;
2755 vport->phba = phba;
2e0fef85 2756 vport->load_flag |= FC_LOADING;
92d7f7b0 2757 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
7f5f3d0d 2758 vport->fc_rscn_flush = 0;
47a8617c 2759
3de2a653 2760 lpfc_get_vport_cfgparam(vport);
2e0fef85
JS		 2761 shost->unique_id = instance;
2762 shost->max_id = LPFC_MAX_TARGET;
3de2a653 2763 shost->max_lun = vport->cfg_max_luns;
2e0fef85
JS		 2764 shost->this_id = -1;
2765 shost->max_cmd_len = 16;
da0436e9 2766 if (phba->sli_rev == LPFC_SLI_REV4) {
28baac74 2767 shost->dma_boundary =
cb5172ea 2768 phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
da0436e9
JS		 2769 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2770 }
81301a9b 2771
47a8617c 2772 /*
2e0fef85
JS		 2773 * Set initial can_queue value since 0 is no longer supported and
2774 * scsi_add_host will fail. This will be adjusted later based on the
2775 * max xri value determined in hba setup.
47a8617c 2776 */
2e0fef85 2777 shost->can_queue = phba->cfg_hba_queue_depth - 10;
3de2a653 2778 if (dev != &phba->pcidev->dev) {
92d7f7b0
JS		 2779 shost->transportt = lpfc_vport_transport_template;
2780 vport->port_type = LPFC_NPIV_PORT;
2781 } else {
2782 shost->transportt = lpfc_transport_template;
2783 vport->port_type = LPFC_PHYSICAL_PORT;
2784 }
47a8617c 2785
2e0fef85
JS		 2786 /* Initialize all internally managed lists. */
2787 INIT_LIST_HEAD(&vport->fc_nodes);
da0436e9 2788 INIT_LIST_HEAD(&vport->rcv_buffer_list);
2e0fef85 2789 spin_lock_init(&vport->work_port_lock);
47a8617c 2790
2e0fef85
JS		 2791 init_timer(&vport->fc_disctmo);
2792 vport->fc_disctmo.function = lpfc_disc_timeout;
92d7f7b0 2793 vport->fc_disctmo.data = (unsigned long)vport;
47a8617c 2794
2e0fef85
JS		 2795 init_timer(&vport->fc_fdmitmo);
2796 vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
92d7f7b0 2797 vport->fc_fdmitmo.data = (unsigned long)vport;
47a8617c 2798
2e0fef85
JS		 2799 init_timer(&vport->els_tmofunc);
2800 vport->els_tmofunc.function = lpfc_els_timeout;
92d7f7b0 2801 vport->els_tmofunc.data = (unsigned long)vport;
92494144
JS		 2802
2803 init_timer(&vport->delayed_disc_tmo);
2804 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
2805 vport->delayed_disc_tmo.data = (unsigned long)vport;
2806
d139b9bd 2807 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2e0fef85
JS		 2808 if (error)
2809 goto out_put_shost;
47a8617c 2810
549e55cd 2811 spin_lock_irq(&phba->hbalock);
2e0fef85 2812 list_add_tail(&vport->listentry, &phba->port_list);
549e55cd 2813 spin_unlock_irq(&phba->hbalock);
2e0fef85 2814 return vport;
47a8617c 2815
2e0fef85
JS		 2816out_put_shost:
2817 scsi_host_put(shost);
2818out:
2819 return NULL;
47a8617c
JS		 2820}
2821
e59058c4 2822/**
3621a710 2823 * destroy_port - destroy an FC port
e59058c4
JS		 2824 * @vport: pointer to an lpfc virtual N_Port data structure.
2825 *
2826 * This routine destroys a FC port from the upper layer protocol. All the
2827 * resources associated with the port are released.
2828 **/
2e0fef85
JS		 2829void
2830destroy_port(struct lpfc_vport *vport)
47a8617c 2831{
92d7f7b0
JS		 2832 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2833 struct lpfc_hba *phba = vport->phba;
47a8617c 2834
858c9f6c 2835 lpfc_debugfs_terminate(vport);
92d7f7b0
JS		 2836 fc_remove_host(shost);
2837 scsi_remove_host(shost);
47a8617c 2838
92d7f7b0
JS		 2839 spin_lock_irq(&phba->hbalock);
2840 list_del_init(&vport->listentry);
2841 spin_unlock_irq(&phba->hbalock);
47a8617c 2842
92d7f7b0 2843 lpfc_cleanup(vport);
47a8617c 2844 return;
47a8617c
JS		 2845}
2846
e59058c4 2847/**
3621a710 2848 * lpfc_get_instance - Get a unique integer ID
e59058c4
JS		 2849 *
2850 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2851 * uses the kernel idr facility to perform the task.
2852 *
2853 * Return codes:
2854 * instance - a unique integer ID allocated as the new instance.
2855 * -1 - lpfc get instance failed.
2856 **/
92d7f7b0
JS		 2857int
2858lpfc_get_instance(void)
2859{
2860 int instance = 0;
47a8617c 2861
92d7f7b0
JS		 2862 /* Assign an unused number */
2863 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2864 return -1;
2865 if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2866 return -1;
2867 return instance;
47a8617c
JS		 2868}
2869
e59058c4 2870/**
3621a710 2871 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
e59058c4
JS		 2872 * @shost: pointer to SCSI host data structure.
2873 * @time: elapsed time of the scan in jiffies.
2874 *
2875 * This routine is called by the SCSI layer with a SCSI host to determine
2876 * whether the scan host is finished.
2877 *
2878 * Note: there is no scan_start function as adapter initialization will have
2879 * asynchronously kicked off the link initialization.
2880 *
2881 * Return codes
2882 * 0 - SCSI host scan is not over yet.
2883 * 1 - SCSI host scan is over.
2884 **/
47a8617c
JS		 2885int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2886{
2e0fef85
JS		 2887 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2888 struct lpfc_hba *phba = vport->phba;
858c9f6c 2889 int stat = 0;
47a8617c 2890
858c9f6c
JS		 2891 spin_lock_irq(shost->host_lock);
2892
51ef4c26 2893 if (vport->load_flag & FC_UNLOADING) {
858c9f6c
JS		 2894 stat = 1;
2895 goto finished;
2896 }
2e0fef85
JS		 2897 if (time >= 30 * HZ) {
2898 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011
JS		 2899 "0461 Scanning longer than 30 "
2900 "seconds. Continuing initialization\n");
858c9f6c 2901 stat = 1;
47a8617c 2902 goto finished;
2e0fef85
JS		 2903 }
2904 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2905 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
e8b62011
JS		 2906 "0465 Link down longer than 15 "
2907 "seconds. Continuing initialization\n");
858c9f6c 2908 stat = 1;
47a8617c 2909 goto finished;
2e0fef85 2910 }
47a8617c 2911
2e0fef85 2912 if (vport->port_state != LPFC_VPORT_READY)
858c9f6c 2913 goto finished;
2e0fef85 2914 if (vport->num_disc_nodes || vport->fc_prli_sent)
858c9f6c 2915 goto finished;
2e0fef85 2916 if (vport->fc_map_cnt == 0 && time < 2 * HZ)
858c9f6c 2917 goto finished;
2e0fef85 2918 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
858c9f6c
JS		 2919 goto finished;
2920
2921 stat = 1;
47a8617c
JS		 2922
2923finished:
858c9f6c
JS		 2924 spin_unlock_irq(shost->host_lock);
2925 return stat;
92d7f7b0 2926}
47a8617c 2927
e59058c4 2928/**
3621a710 2929 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
e59058c4
JS		 2930 * @shost: pointer to SCSI host data structure.
2931 *
2932 * This routine initializes a given SCSI host attributes on a FC port. The
2933 * SCSI host can be either on top of a physical port or a virtual port.
2934 **/
92d7f7b0
JS		 2935void lpfc_host_attrib_init(struct Scsi_Host *shost)
2936{
2937 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2938 struct lpfc_hba *phba = vport->phba;
47a8617c 2939 /*
2e0fef85 2940 * Set fixed host attributes. Must done after lpfc_sli_hba_setup().
47a8617c
JS		 2941 */
2942
2e0fef85
JS		 2943 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2944 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
47a8617c
JS		 2945 fc_host_supported_classes(shost) = FC_COS_CLASS3;
2946
2947 memset(fc_host_supported_fc4s(shost), 0,
2e0fef85 2948 sizeof(fc_host_supported_fc4s(shost)));
47a8617c
JS		 2949 fc_host_supported_fc4s(shost)[2] = 1;
2950 fc_host_supported_fc4s(shost)[7] = 1;
2951
92d7f7b0
JS		 2952 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2953 sizeof fc_host_symbolic_name(shost));
47a8617c
JS		 2954
2955 fc_host_supported_speeds(shost) = 0;
88a2cfbb
JS		 2956 if (phba->lmt & LMT_16Gb)
2957 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
47a8617c
JS		 2958 if (phba->lmt & LMT_10Gb)
2959 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
a8adb832
JS		 2960 if (phba->lmt & LMT_8Gb)
2961 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
47a8617c
JS		 2962 if (phba->lmt & LMT_4Gb)
2963 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2964 if (phba->lmt & LMT_2Gb)
2965 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2966 if (phba->lmt & LMT_1Gb)
2967 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2968
2969 fc_host_maxframe_size(shost) =
2e0fef85
JS		 2970 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2971 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
47a8617c 2972
0af5d708
MC		 2973 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
2974
47a8617c
JS		 2975 /* This value is also unchanging */
2976 memset(fc_host_active_fc4s(shost), 0,
2e0fef85 2977 sizeof(fc_host_active_fc4s(shost)));
47a8617c
JS		 2978 fc_host_active_fc4s(shost)[2] = 1;
2979 fc_host_active_fc4s(shost)[7] = 1;
2980
92d7f7b0 2981 fc_host_max_npiv_vports(shost) = phba->max_vpi;
47a8617c 2982 spin_lock_irq(shost->host_lock);
51ef4c26 2983 vport->load_flag &= ~FC_LOADING;
47a8617c 2984 spin_unlock_irq(shost->host_lock);
47a8617c 2985}
dea3101e 2986
e59058c4 2987/**
da0436e9 2988 * lpfc_stop_port_s3 - Stop SLI3 device port
e59058c4
JS		 2989 * @phba: pointer to lpfc hba data structure.
2990 *
da0436e9
JS		 2991 * This routine is invoked to stop an SLI3 device port, it stops the device
2992 * from generating interrupts and stops the device driver's timers for the
2993 * device.
e59058c4 2994 **/
da0436e9
JS		 2995static void
2996lpfc_stop_port_s3(struct lpfc_hba *phba)
db2378e0 2997{
da0436e9
JS		 2998 /* Clear all interrupt enable conditions */
2999 writel(0, phba->HCregaddr);
3000 readl(phba->HCregaddr); /* flush */
3001 /* Clear all pending interrupts */
3002 writel(0xffffffff, phba->HAregaddr);
3003 readl(phba->HAregaddr); /* flush */
db2378e0 3004
da0436e9
JS		 3005 /* Reset some HBA SLI setup states */
3006 lpfc_stop_hba_timers(phba);
3007 phba->pport->work_port_events = 0;
3008}
db2378e0 3009
da0436e9
JS		 3010/**
3011 * lpfc_stop_port_s4 - Stop SLI4 device port
3012 * @phba: pointer to lpfc hba data structure.
3013 *
3014 * This routine is invoked to stop an SLI4 device port, it stops the device
3015 * from generating interrupts and stops the device driver's timers for the
3016 * device.
3017 **/
3018static void
3019lpfc_stop_port_s4(struct lpfc_hba *phba)
3020{
3021 /* Reset some HBA SLI4 setup states */
3022 lpfc_stop_hba_timers(phba);
3023 phba->pport->work_port_events = 0;
3024 phba->sli4_hba.intr_enable = 0;
da0436e9 3025}
9399627f 3026
da0436e9
JS		 3027/**
3028 * lpfc_stop_port - Wrapper function for stopping hba port
3029 * @phba: Pointer to HBA context object.
3030 *
3031 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3032 * the API jump table function pointer from the lpfc_hba struct.
3033 **/
3034void
3035lpfc_stop_port(struct lpfc_hba *phba)
3036{
3037 phba->lpfc_stop_port(phba);
3038}
db2378e0 3039
ecfd03c6
JS		 3040/**
3041 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3042 * @phba: Pointer to hba for which this call is being executed.
3043 *
3044 * This routine starts the timer waiting for the FCF rediscovery to complete.
3045 **/
3046void
3047lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3048{
3049 unsigned long fcf_redisc_wait_tmo =
3050 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3051 /* Start fcf rediscovery wait period timer */
3052 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3053 spin_lock_irq(&phba->hbalock);
3054 /* Allow action to new fcf asynchronous event */
3055 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3056 /* Mark the FCF rediscovery pending state */
3057 phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3058 spin_unlock_irq(&phba->hbalock);
3059}
3060
3061/**
3062 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3063 * @ptr: Map to lpfc_hba data structure pointer.
3064 *
3065 * This routine is invoked when waiting for FCF table rediscover has been
3066 * timed out. If new FCF record(s) has (have) been discovered during the
3067 * wait period, a new FCF event shall be added to the FCOE async event
3068 * list, and then worker thread shall be waked up for processing from the
3069 * worker thread context.
3070 **/
3071void
3072lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3073{
3074 struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3075
3076 /* Don't send FCF rediscovery event if timer cancelled */
3077 spin_lock_irq(&phba->hbalock);
3078 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3079 spin_unlock_irq(&phba->hbalock);
3080 return;
3081 }
3082 /* Clear FCF rediscovery timer pending flag */
3083 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3084 /* FCF rediscovery event to worker thread */
3085 phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3086 spin_unlock_irq(&phba->hbalock);
0c9ab6f5 3087 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
a93ff37a 3088 "2776 FCF rediscover quiescent timer expired\n");
ecfd03c6
JS		 3089 /* wake up worker thread */
3090 lpfc_worker_wake_up(phba);
3091}
3092
e59058c4 3093/**
da0436e9 3094 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
e59058c4 3095 * @phba: pointer to lpfc hba data structure.
da0436e9 3096 * @acqe_link: pointer to the async link completion queue entry.
e59058c4 3097 *
da0436e9
JS		 3098 * This routine is to parse the SLI4 link-attention link fault code and
3099 * translate it into the base driver's read link attention mailbox command
3100 * status.
3101 *
3102 * Return: Link-attention status in terms of base driver's coding.
e59058c4 3103 **/
da0436e9
JS		 3104static uint16_t
3105lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3106 struct lpfc_acqe_link *acqe_link)
db2378e0 3107{
da0436e9 3108 uint16_t latt_fault;
9399627f 3109
da0436e9
JS		 3110 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3111 case LPFC_ASYNC_LINK_FAULT_NONE:
3112 case LPFC_ASYNC_LINK_FAULT_LOCAL:
3113 case LPFC_ASYNC_LINK_FAULT_REMOTE:
3114 latt_fault = 0;
3115 break;
3116 default:
3117 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3118 "0398 Invalid link fault code: x%x\n",
3119 bf_get(lpfc_acqe_link_fault, acqe_link));
3120 latt_fault = MBXERR_ERROR;
3121 break;
3122 }
3123 return latt_fault;
db2378e0
JS		 3124}
3125
5b75da2f 3126/**
da0436e9 3127 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
5b75da2f 3128 * @phba: pointer to lpfc hba data structure.
da0436e9 3129 * @acqe_link: pointer to the async link completion queue entry.
5b75da2f 3130 *
da0436e9
JS		 3131 * This routine is to parse the SLI4 link attention type and translate it
3132 * into the base driver's link attention type coding.
5b75da2f 3133 *
da0436e9
JS		 3134 * Return: Link attention type in terms of base driver's coding.
3135 **/
3136static uint8_t
3137lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3138 struct lpfc_acqe_link *acqe_link)
5b75da2f 3139{
da0436e9 3140 uint8_t att_type;
5b75da2f 3141
da0436e9
JS		 3142 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3143 case LPFC_ASYNC_LINK_STATUS_DOWN:
3144 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
76a95d75 3145 att_type = LPFC_ATT_LINK_DOWN;
da0436e9
JS		 3146 break;
3147 case LPFC_ASYNC_LINK_STATUS_UP:
3148 /* Ignore physical link up events - wait for logical link up */
76a95d75 3149 att_type = LPFC_ATT_RESERVED;
da0436e9
JS		 3150 break;
3151 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
76a95d75 3152 att_type = LPFC_ATT_LINK_UP;
da0436e9
JS		 3153 break;
3154 default:
3155 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3156 "0399 Invalid link attention type: x%x\n",
3157 bf_get(lpfc_acqe_link_status, acqe_link));
76a95d75 3158 att_type = LPFC_ATT_RESERVED;
da0436e9 3159 break;
5b75da2f 3160 }
da0436e9 3161 return att_type;
5b75da2f
JS		 3162}
3163
3164/**
da0436e9 3165 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
5b75da2f 3166 * @phba: pointer to lpfc hba data structure.
da0436e9 3167 * @acqe_link: pointer to the async link completion queue entry.
5b75da2f 3168 *
da0436e9
JS		 3169 * This routine is to parse the SLI4 link-attention link speed and translate
3170 * it into the base driver's link-attention link speed coding.
3171 *
3172 * Return: Link-attention link speed in terms of base driver's coding.
3173 **/
3174static uint8_t
3175lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3176 struct lpfc_acqe_link *acqe_link)
5b75da2f 3177{
da0436e9
JS		 3178 uint8_t link_speed;
3179
3180 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3181 case LPFC_ASYNC_LINK_SPEED_ZERO:
da0436e9 3182 case LPFC_ASYNC_LINK_SPEED_10MBPS:
da0436e9 3183 case LPFC_ASYNC_LINK_SPEED_100MBPS:
76a95d75 3184 link_speed = LPFC_LINK_SPEED_UNKNOWN;
da0436e9
JS		 3185 break;
3186 case LPFC_ASYNC_LINK_SPEED_1GBPS:
76a95d75 3187 link_speed = LPFC_LINK_SPEED_1GHZ;
da0436e9
JS		 3188 break;
3189 case LPFC_ASYNC_LINK_SPEED_10GBPS:
76a95d75 3190 link_speed = LPFC_LINK_SPEED_10GHZ;
da0436e9
JS		 3191 break;
3192 default:
3193 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3194 "0483 Invalid link-attention link speed: x%x\n",
3195 bf_get(lpfc_acqe_link_speed, acqe_link));
76a95d75 3196 link_speed = LPFC_LINK_SPEED_UNKNOWN;
da0436e9
JS		 3197 break;
3198 }
3199 return link_speed;
3200}
3201
3202/**
70f3c073 3203 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
da0436e9
JS		 3204 * @phba: pointer to lpfc hba data structure.
3205 * @acqe_link: pointer to the async link completion queue entry.
3206 *
70f3c073 3207 * This routine is to handle the SLI4 asynchronous FCoE link event.
da0436e9
JS		 3208 **/
3209static void
3210lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3211 struct lpfc_acqe_link *acqe_link)
3212{
3213 struct lpfc_dmabuf *mp;
3214 LPFC_MBOXQ_t *pmb;
3215 MAILBOX_t *mb;
76a95d75 3216 struct lpfc_mbx_read_top *la;
da0436e9 3217 uint8_t att_type;
76a95d75 3218 int rc;
da0436e9
JS		 3219
3220 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
76a95d75 3221 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
da0436e9 3222 return;
32b9793f 3223 phba->fcoe_eventtag = acqe_link->event_tag;
da0436e9
JS		 3224 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3225 if (!pmb) {
3226 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3227 "0395 The mboxq allocation failed\n");
3228 return;
3229 }
3230 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3231 if (!mp) {
3232 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3233 "0396 The lpfc_dmabuf allocation failed\n");
3234 goto out_free_pmb;
3235 }
3236 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3237 if (!mp->virt) {
3238 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3239 "0397 The mbuf allocation failed\n");
3240 goto out_free_dmabuf;
3241 }
3242
3243 /* Cleanup any outstanding ELS commands */
3244 lpfc_els_flush_all_cmd(phba);
3245
3246 /* Block ELS IOCBs until we have done process link event */
3247 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3248
3249 /* Update link event statistics */
3250 phba->sli.slistat.link_event++;
3251
76a95d75
JS		 3252 /* Create lpfc_handle_latt mailbox command from link ACQE */
3253 lpfc_read_topology(phba, pmb, mp);
3254 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
da0436e9
JS		 3255 pmb->vport = phba->pport;
3256
da0436e9
JS		 3257 /* Keep the link status for extra SLI4 state machine reference */
3258 phba->sli4_hba.link_state.speed =
3259 bf_get(lpfc_acqe_link_speed, acqe_link);
3260 phba->sli4_hba.link_state.duplex =
3261 bf_get(lpfc_acqe_link_duplex, acqe_link);
3262 phba->sli4_hba.link_state.status =
3263 bf_get(lpfc_acqe_link_status, acqe_link);
70f3c073
JS		 3264 phba->sli4_hba.link_state.type =
3265 bf_get(lpfc_acqe_link_type, acqe_link);
3266 phba->sli4_hba.link_state.number =
3267 bf_get(lpfc_acqe_link_number, acqe_link);
da0436e9
JS		 3268 phba->sli4_hba.link_state.fault =
3269 bf_get(lpfc_acqe_link_fault, acqe_link);
65467b6b 3270 phba->sli4_hba.link_state.logical_speed =
70f3c073
JS		 3271 bf_get(lpfc_acqe_logical_link_speed, acqe_link);
3272 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
c31098ce
JS		 3273 "2900 Async FC/FCoE Link event - Speed:%dGBit "
3274 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3275 "Logical speed:%dMbps Fault:%d\n",
70f3c073
JS		 3276 phba->sli4_hba.link_state.speed,
3277 phba->sli4_hba.link_state.topology,
3278 phba->sli4_hba.link_state.status,
3279 phba->sli4_hba.link_state.type,
3280 phba->sli4_hba.link_state.number,
3281 phba->sli4_hba.link_state.logical_speed * 10,
3282 phba->sli4_hba.link_state.fault);
76a95d75
JS		 3283 /*
3284 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3285 * topology info. Note: Optional for non FC-AL ports.
3286 */
3287 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3288 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3289 if (rc == MBX_NOT_FINISHED)
3290 goto out_free_dmabuf;
3291 return;
3292 }
3293 /*
3294 * For FCoE Mode: fill in all the topology information we need and call
3295 * the READ_TOPOLOGY completion routine to continue without actually
3296 * sending the READ_TOPOLOGY mailbox command to the port.
3297 */
3298 /* Parse and translate status field */
3299 mb = &pmb->u.mb;
3300 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3301
3302 /* Parse and translate link attention fields */
3303 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3304 la->eventTag = acqe_link->event_tag;
3305 bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3306 bf_set(lpfc_mbx_read_top_link_spd, la,
3307 lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3308
3309 /* Fake the the following irrelvant fields */
3310 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3311 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3312 bf_set(lpfc_mbx_read_top_il, la, 0);
3313 bf_set(lpfc_mbx_read_top_pb, la, 0);
3314 bf_set(lpfc_mbx_read_top_fa, la, 0);
3315 bf_set(lpfc_mbx_read_top_mm, la, 0);
da0436e9
JS		 3316
3317 /* Invoke the lpfc_handle_latt mailbox command callback function */
76a95d75 3318 lpfc_mbx_cmpl_read_topology(phba, pmb);
da0436e9 3319
5b75da2f 3320 return;
da0436e9
JS		 3321
3322out_free_dmabuf:
3323 kfree(mp);
3324out_free_pmb:
3325 mempool_free(pmb, phba->mbox_mem_pool);
3326}
3327
70f3c073
JS		 3328/**
3329 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3330 * @phba: pointer to lpfc hba data structure.
3331 * @acqe_fc: pointer to the async fc completion queue entry.
3332 *
3333 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3334 * that the event was received and then issue a read_topology mailbox command so
3335 * that the rest of the driver will treat it the same as SLI3.
3336 **/
3337static void
3338lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3339{
3340 struct lpfc_dmabuf *mp;
3341 LPFC_MBOXQ_t *pmb;
3342 int rc;
3343
3344 if (bf_get(lpfc_trailer_type, acqe_fc) !=
3345 LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3346 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3347 "2895 Non FC link Event detected.(%d)\n",
3348 bf_get(lpfc_trailer_type, acqe_fc));
3349 return;
3350 }
3351 /* Keep the link status for extra SLI4 state machine reference */
3352 phba->sli4_hba.link_state.speed =
3353 bf_get(lpfc_acqe_fc_la_speed, acqe_fc);
3354 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3355 phba->sli4_hba.link_state.topology =
3356 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3357 phba->sli4_hba.link_state.status =
3358 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3359 phba->sli4_hba.link_state.type =
3360 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3361 phba->sli4_hba.link_state.number =
3362 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3363 phba->sli4_hba.link_state.fault =
3364 bf_get(lpfc_acqe_link_fault, acqe_fc);
3365 phba->sli4_hba.link_state.logical_speed =
3366 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
3367 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3368 "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3369 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3370 "%dMbps Fault:%d\n",
3371 phba->sli4_hba.link_state.speed,
3372 phba->sli4_hba.link_state.topology,
3373 phba->sli4_hba.link_state.status,
3374 phba->sli4_hba.link_state.type,
3375 phba->sli4_hba.link_state.number,
3376 phba->sli4_hba.link_state.logical_speed * 10,
3377 phba->sli4_hba.link_state.fault);
3378 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3379 if (!pmb) {
3380 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3381 "2897 The mboxq allocation failed\n");
3382 return;
3383 }
3384 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3385 if (!mp) {
3386 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3387 "2898 The lpfc_dmabuf allocation failed\n");
3388 goto out_free_pmb;
3389 }
3390 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3391 if (!mp->virt) {
3392 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3393 "2899 The mbuf allocation failed\n");
3394 goto out_free_dmabuf;
3395 }
3396
3397 /* Cleanup any outstanding ELS commands */
3398 lpfc_els_flush_all_cmd(phba);
3399
3400 /* Block ELS IOCBs until we have done process link event */
3401 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3402
3403 /* Update link event statistics */
3404 phba->sli.slistat.link_event++;
3405
3406 /* Create lpfc_handle_latt mailbox command from link ACQE */
3407 lpfc_read_topology(phba, pmb, mp);
3408 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3409 pmb->vport = phba->pport;
3410
3411 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3412 if (rc == MBX_NOT_FINISHED)
3413 goto out_free_dmabuf;
3414 return;
3415
3416out_free_dmabuf:
3417 kfree(mp);
3418out_free_pmb:
3419 mempool_free(pmb, phba->mbox_mem_pool);
3420}
3421
3422/**
3423 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3424 * @phba: pointer to lpfc hba data structure.
3425 * @acqe_fc: pointer to the async SLI completion queue entry.
3426 *
3427 * This routine is to handle the SLI4 asynchronous SLI events.
3428 **/
3429static void
3430lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3431{
3432 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3433 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3434 "x%08x SLI Event Type:%d",
3435 acqe_sli->event_data1, acqe_sli->event_data2,
3436 bf_get(lpfc_trailer_type, acqe_sli));
3437 return;
3438}
3439
fc2b989b
JS		 3440/**
3441 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3442 * @vport: pointer to vport data structure.
3443 *
3444 * This routine is to perform Clear Virtual Link (CVL) on a vport in
3445 * response to a CVL event.
3446 *
3447 * Return the pointer to the ndlp with the vport if successful, otherwise
3448 * return NULL.
3449 **/
3450static struct lpfc_nodelist *
3451lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3452{
3453 struct lpfc_nodelist *ndlp;
3454 struct Scsi_Host *shost;
3455 struct lpfc_hba *phba;
3456
3457 if (!vport)
3458 return NULL;
fc2b989b
JS		 3459 phba = vport->phba;
3460 if (!phba)
3461 return NULL;
78730cfe
JS		 3462 ndlp = lpfc_findnode_did(vport, Fabric_DID);
3463 if (!ndlp) {
3464 /* Cannot find existing Fabric ndlp, so allocate a new one */
3465 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3466 if (!ndlp)
3467 return 0;
3468 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3469 /* Set the node type */
3470 ndlp->nlp_type |= NLP_FABRIC;
3471 /* Put ndlp onto node list */
3472 lpfc_enqueue_node(vport, ndlp);
3473 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3474 /* re-setup ndlp without removing from node list */
3475 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3476 if (!ndlp)
3477 return 0;
3478 }
63e801ce
JS		 3479 if ((phba->pport->port_state < LPFC_FLOGI) &&
3480 (phba->pport->port_state != LPFC_VPORT_FAILED))
fc2b989b
JS		 3481 return NULL;
3482 /* If virtual link is not yet instantiated ignore CVL */
63e801ce
JS		 3483 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
3484 && (vport->port_state != LPFC_VPORT_FAILED))
fc2b989b
JS		 3485 return NULL;
3486 shost = lpfc_shost_from_vport(vport);
3487 if (!shost)
3488 return NULL;
3489 lpfc_linkdown_port(vport);
3490 lpfc_cleanup_pending_mbox(vport);
3491 spin_lock_irq(shost->host_lock);
3492 vport->fc_flag |= FC_VPORT_CVL_RCVD;
3493 spin_unlock_irq(shost->host_lock);
3494
3495 return ndlp;
3496}
3497
3498/**
3499 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3500 * @vport: pointer to lpfc hba data structure.
3501 *
3502 * This routine is to perform Clear Virtual Link (CVL) on all vports in
3503 * response to a FCF dead event.
3504 **/
3505static void
3506lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3507{
3508 struct lpfc_vport **vports;
3509 int i;
3510
3511 vports = lpfc_create_vport_work_array(phba);
3512 if (vports)
3513 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3514 lpfc_sli4_perform_vport_cvl(vports[i]);
3515 lpfc_destroy_vport_work_array(phba, vports);
3516}
3517
da0436e9 3518/**
76a95d75 3519 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
da0436e9
JS		 3520 * @phba: pointer to lpfc hba data structure.
3521 * @acqe_link: pointer to the async fcoe completion queue entry.
3522 *
3523 * This routine is to handle the SLI4 asynchronous fcoe event.
3524 **/
3525static void
76a95d75 3526lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
70f3c073 3527 struct lpfc_acqe_fip *acqe_fip)
da0436e9 3528{
70f3c073 3529 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
da0436e9 3530 int rc;
6669f9bb
JS		 3531 struct lpfc_vport *vport;
3532 struct lpfc_nodelist *ndlp;
3533 struct Scsi_Host *shost;
695a814e
JS		 3534 int active_vlink_present;
3535 struct lpfc_vport **vports;
3536 int i;
da0436e9 3537
70f3c073
JS		 3538 phba->fc_eventTag = acqe_fip->event_tag;
3539 phba->fcoe_eventtag = acqe_fip->event_tag;
da0436e9 3540 switch (event_type) {
70f3c073
JS		 3541 case LPFC_FIP_EVENT_TYPE_NEW_FCF:
3542 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
3543 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
999d813f
JS		 3544 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3545 LOG_DISCOVERY,
a93ff37a
JS		 3546 "2546 New FCF event, evt_tag:x%x, "
3547 "index:x%x\n",
70f3c073
JS		 3548 acqe_fip->event_tag,
3549 acqe_fip->index);
999d813f
JS		 3550 else
3551 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3552 LOG_DISCOVERY,
a93ff37a
JS		 3553 "2788 FCF param modified event, "
3554 "evt_tag:x%x, index:x%x\n",
70f3c073
JS		 3555 acqe_fip->event_tag,
3556 acqe_fip->index);
38b92ef8 3557 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
0c9ab6f5
JS		 3558 /*
3559 * During period of FCF discovery, read the FCF
3560 * table record indexed by the event to update
a93ff37a 3561 * FCF roundrobin failover eligible FCF bmask.
0c9ab6f5
JS		 3562 */
3563 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3564 LOG_DISCOVERY,
a93ff37a
JS		 3565 "2779 Read FCF (x%x) for updating "
3566 "roundrobin FCF failover bmask\n",
70f3c073
JS		 3567 acqe_fip->index);
3568 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
0c9ab6f5 3569 }
38b92ef8
JS		 3570
3571 /* If the FCF discovery is in progress, do nothing. */
3804dc84 3572 spin_lock_irq(&phba->hbalock);
a93ff37a 3573 if (phba->hba_flag & FCF_TS_INPROG) {
38b92ef8
JS		 3574 spin_unlock_irq(&phba->hbalock);
3575 break;
3576 }
3577 /* If fast FCF failover rescan event is pending, do nothing */
3578 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3579 spin_unlock_irq(&phba->hbalock);
3580 break;
3581 }
3582
3583 /* If the FCF has been in discovered state, do nothing. */
3804dc84
JS		 3584 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
3585 spin_unlock_irq(&phba->hbalock);
3586 break;
3587 }
3588 spin_unlock_irq(&phba->hbalock);
38b92ef8 3589
0c9ab6f5
JS		 3590 /* Otherwise, scan the entire FCF table and re-discover SAN */
3591 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
a93ff37a
JS		 3592 "2770 Start FCF table scan per async FCF "
3593 "event, evt_tag:x%x, index:x%x\n",
70f3c073 3594 acqe_fip->event_tag, acqe_fip->index);
0c9ab6f5
JS		 3595 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3596 LPFC_FCOE_FCF_GET_FIRST);
da0436e9 3597 if (rc)
0c9ab6f5
JS		 3598 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3599 "2547 Issue FCF scan read FCF mailbox "
a93ff37a 3600 "command failed (x%x)\n", rc);
da0436e9
JS		 3601 break;
3602
70f3c073 3603 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
da0436e9 3604 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
e4e74273 3605 "2548 FCF Table full count 0x%x tag 0x%x\n",
70f3c073
JS		 3606 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
3607 acqe_fip->event_tag);
da0436e9
JS		 3608 break;
3609
70f3c073 3610 case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
0c9ab6f5 3611 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
a93ff37a 3612 "2549 FCF (x%x) disconnected from network, "
70f3c073 3613 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
38b92ef8
JS		 3614 /*
3615 * If we are in the middle of FCF failover process, clear
3616 * the corresponding FCF bit in the roundrobin bitmap.
da0436e9 3617 */
fc2b989b 3618 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3619 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
fc2b989b 3620 spin_unlock_irq(&phba->hbalock);
0c9ab6f5 3621 /* Update FLOGI FCF failover eligible FCF bmask */
70f3c073 3622 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
fc2b989b
JS		 3623 break;
3624 }
38b92ef8
JS		 3625 spin_unlock_irq(&phba->hbalock);
3626
3627 /* If the event is not for currently used fcf do nothing */
70f3c073 3628 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
38b92ef8
JS		 3629 break;
3630
3631 /*
3632 * Otherwise, request the port to rediscover the entire FCF
3633 * table for a fast recovery from case that the current FCF
3634 * is no longer valid as we are not in the middle of FCF
3635 * failover process already.
3636 */
3637 spin_lock_irq(&phba->hbalock);
fc2b989b 3638 /* Mark the fast failover process in progress */
0c9ab6f5 3639 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
fc2b989b 3640 spin_unlock_irq(&phba->hbalock);
38b92ef8 3641
0c9ab6f5
JS		 3642 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3643 "2771 Start FCF fast failover process due to "
3644 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
70f3c073 3645 "\n", acqe_fip->event_tag, acqe_fip->index);
fc2b989b
JS		 3646 rc = lpfc_sli4_redisc_fcf_table(phba);
3647 if (rc) {
0c9ab6f5
JS		 3648 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3649 LOG_DISCOVERY,
3650 "2772 Issue FCF rediscover mabilbox "
3651 "command failed, fail through to FCF "
3652 "dead event\n");
fc2b989b 3653 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3654 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
fc2b989b
JS		 3655 spin_unlock_irq(&phba->hbalock);
3656 /*
3657 * Last resort will fail over by treating this
3658 * as a link down to FCF registration.
3659 */
3660 lpfc_sli4_fcf_dead_failthrough(phba);
38b92ef8
JS		 3661 } else {
3662 /* Reset FCF roundrobin bmask for new discovery */
7d791df7 3663 lpfc_sli4_clear_fcf_rr_bmask(phba);
38b92ef8
JS		 3664 /*
3665 * Handling fast FCF failover to a DEAD FCF event is
3666 * considered equalivant to receiving CVL to all vports.
fc2b989b
JS		 3667 */
3668 lpfc_sli4_perform_all_vport_cvl(phba);
38b92ef8 3669 }
da0436e9 3670 break;
70f3c073 3671 case LPFC_FIP_EVENT_TYPE_CVL:
0c9ab6f5 3672 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
6669f9bb 3673 "2718 Clear Virtual Link Received for VPI 0x%x"
70f3c073 3674 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
6d368e53 3675
6669f9bb 3676 vport = lpfc_find_vport_by_vpid(phba,
5248a749 3677 acqe_fip->index);
fc2b989b 3678 ndlp = lpfc_sli4_perform_vport_cvl(vport);
6669f9bb
JS		 3679 if (!ndlp)
3680 break;
695a814e
JS		 3681 active_vlink_present = 0;
3682
3683 vports = lpfc_create_vport_work_array(phba);
3684 if (vports) {
3685 for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3686 i++) {
3687 if ((!(vports[i]->fc_flag &
3688 FC_VPORT_CVL_RCVD)) &&
3689 (vports[i]->port_state > LPFC_FDISC)) {
3690 active_vlink_present = 1;
3691 break;
3692 }
3693 }
3694 lpfc_destroy_vport_work_array(phba, vports);
3695 }
3696
3697 if (active_vlink_present) {
3698 /*
3699 * If there are other active VLinks present,
3700 * re-instantiate the Vlink using FDISC.
3701 */
6669f9bb 3702 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
fc2b989b 3703 shost = lpfc_shost_from_vport(vport);
6669f9bb
JS		 3704 spin_lock_irq(shost->host_lock);
3705 ndlp->nlp_flag |= NLP_DELAY_TMO;
3706 spin_unlock_irq(shost->host_lock);
695a814e
JS		 3707 ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3708 vport->port_state = LPFC_FDISC;
3709 } else {
ecfd03c6
JS		 3710 /*
3711 * Otherwise, we request port to rediscover
3712 * the entire FCF table for a fast recovery
3713 * from possible case that the current FCF
0c9ab6f5
JS		 3714 * is no longer valid if we are not already
3715 * in the FCF failover process.
ecfd03c6 3716 */
fc2b989b 3717 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3718 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
fc2b989b
JS		 3719 spin_unlock_irq(&phba->hbalock);
3720 break;
3721 }
3722 /* Mark the fast failover process in progress */
0c9ab6f5 3723 phba->fcf.fcf_flag |= FCF_ACVL_DISC;
fc2b989b 3724 spin_unlock_irq(&phba->hbalock);
0c9ab6f5
JS		 3725 lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3726 LOG_DISCOVERY,
a93ff37a 3727 "2773 Start FCF failover per CVL, "
70f3c073 3728 "evt_tag:x%x\n", acqe_fip->event_tag);
ecfd03c6 3729 rc = lpfc_sli4_redisc_fcf_table(phba);
fc2b989b 3730 if (rc) {
0c9ab6f5
JS		 3731 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3732 LOG_DISCOVERY,
3733 "2774 Issue FCF rediscover "
3734 "mabilbox command failed, "
3735 "through to CVL event\n");
fc2b989b 3736 spin_lock_irq(&phba->hbalock);
0c9ab6f5 3737 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
fc2b989b 3738 spin_unlock_irq(&phba->hbalock);
ecfd03c6
JS		 3739 /*
3740 * Last resort will be re-try on the
3741 * the current registered FCF entry.
3742 */
3743 lpfc_retry_pport_discovery(phba);
38b92ef8
JS		 3744 } else
3745 /*
3746 * Reset FCF roundrobin bmask for new
3747 * discovery.
3748 */
7d791df7 3749 lpfc_sli4_clear_fcf_rr_bmask(phba);
6669f9bb
JS		 3750 }
3751 break;
da0436e9
JS		 3752 default:
3753 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3754 "0288 Unknown FCoE event type 0x%x event tag "
70f3c073 3755 "0x%x\n", event_type, acqe_fip->event_tag);
da0436e9
JS		 3756 break;
3757 }
3758}
3759
3760/**
3761 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3762 * @phba: pointer to lpfc hba data structure.
3763 * @acqe_link: pointer to the async dcbx completion queue entry.
3764 *
3765 * This routine is to handle the SLI4 asynchronous dcbx event.
3766 **/
3767static void
3768lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3769 struct lpfc_acqe_dcbx *acqe_dcbx)
3770{
4d9ab994 3771 phba->fc_eventTag = acqe_dcbx->event_tag;
da0436e9
JS		 3772 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3773 "0290 The SLI4 DCBX asynchronous event is not "
3774 "handled yet\n");
3775}
3776
b19a061a
JS		 3777/**
3778 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3779 * @phba: pointer to lpfc hba data structure.
3780 * @acqe_link: pointer to the async grp5 completion queue entry.
3781 *
3782 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3783 * is an asynchronous notified of a logical link speed change. The Port
3784 * reports the logical link speed in units of 10Mbps.
3785 **/
3786static void
3787lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
3788 struct lpfc_acqe_grp5 *acqe_grp5)
3789{
3790 uint16_t prev_ll_spd;
3791
3792 phba->fc_eventTag = acqe_grp5->event_tag;
3793 phba->fcoe_eventtag = acqe_grp5->event_tag;
3794 prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
3795 phba->sli4_hba.link_state.logical_speed =
3796 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
3797 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3798 "2789 GRP5 Async Event: Updating logical link speed "
3799 "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
3800 (phba->sli4_hba.link_state.logical_speed*10));
3801}
3802
da0436e9
JS		 3803/**
3804 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3805 * @phba: pointer to lpfc hba data structure.
3806 *
3807 * This routine is invoked by the worker thread to process all the pending
3808 * SLI4 asynchronous events.
3809 **/
3810void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3811{
3812 struct lpfc_cq_event *cq_event;
3813
3814 /* First, declare the async event has been handled */
3815 spin_lock_irq(&phba->hbalock);
3816 phba->hba_flag &= ~ASYNC_EVENT;
3817 spin_unlock_irq(&phba->hbalock);
3818 /* Now, handle all the async events */
3819 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3820 /* Get the first event from the head of the event queue */
3821 spin_lock_irq(&phba->hbalock);
3822 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3823 cq_event, struct lpfc_cq_event, list);
3824 spin_unlock_irq(&phba->hbalock);
3825 /* Process the asynchronous event */
3826 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3827 case LPFC_TRAILER_CODE_LINK:
3828 lpfc_sli4_async_link_evt(phba,
3829 &cq_event->cqe.acqe_link);
3830 break;
3831 case LPFC_TRAILER_CODE_FCOE:
70f3c073 3832 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
da0436e9
JS		 3833 break;
3834 case LPFC_TRAILER_CODE_DCBX:
3835 lpfc_sli4_async_dcbx_evt(phba,
3836 &cq_event->cqe.acqe_dcbx);
3837 break;
b19a061a
JS		 3838 case LPFC_TRAILER_CODE_GRP5:
3839 lpfc_sli4_async_grp5_evt(phba,
3840 &cq_event->cqe.acqe_grp5);
3841 break;
70f3c073
JS		 3842 case LPFC_TRAILER_CODE_FC:
3843 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
3844 break;
3845 case LPFC_TRAILER_CODE_SLI:
3846 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
3847 break;
da0436e9
JS		 3848 default:
3849 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3850 "1804 Invalid asynchrous event code: "
3851 "x%x\n", bf_get(lpfc_trailer_code,
3852 &cq_event->cqe.mcqe_cmpl));
3853 break;
3854 }
3855 /* Free the completion event processed to the free pool */
3856 lpfc_sli4_cq_event_release(phba, cq_event);
3857 }
3858}
3859
ecfd03c6
JS		 3860/**
3861 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3862 * @phba: pointer to lpfc hba data structure.
3863 *
3864 * This routine is invoked by the worker thread to process FCF table
3865 * rediscovery pending completion event.
3866 **/
3867void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3868{
3869 int rc;
3870
3871 spin_lock_irq(&phba->hbalock);
3872 /* Clear FCF rediscovery timeout event */
3873 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3874 /* Clear driver fast failover FCF record flag */
3875 phba->fcf.failover_rec.flag = 0;
3876 /* Set state for FCF fast failover */
3877 phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3878 spin_unlock_irq(&phba->hbalock);
3879
3880 /* Scan FCF table from the first entry to re-discover SAN */
0c9ab6f5 3881 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
a93ff37a 3882 "2777 Start post-quiescent FCF table scan\n");
0c9ab6f5 3883 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
ecfd03c6 3884 if (rc)
0c9ab6f5
JS		 3885 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3886 "2747 Issue FCF scan read FCF mailbox "
3887 "command failed 0x%x\n", rc);
ecfd03c6
JS		 3888}
3889
da0436e9
JS		 3890/**
3891 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3892 * @phba: pointer to lpfc hba data structure.
3893 * @dev_grp: The HBA PCI-Device group number.
3894 *
3895 * This routine is invoked to set up the per HBA PCI-Device group function
3896 * API jump table entries.
3897 *
3898 * Return: 0 if success, otherwise -ENODEV
3899 **/
3900int
3901lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3902{
3903 int rc;
3904
3905 /* Set up lpfc PCI-device group */
3906 phba->pci_dev_grp = dev_grp;
3907
3908 /* The LPFC_PCI_DEV_OC uses SLI4 */
3909 if (dev_grp == LPFC_PCI_DEV_OC)
3910 phba->sli_rev = LPFC_SLI_REV4;
3911
3912 /* Set up device INIT API function jump table */
3913 rc = lpfc_init_api_table_setup(phba, dev_grp);
3914 if (rc)
3915 return -ENODEV;
3916 /* Set up SCSI API function jump table */
3917 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3918 if (rc)
3919 return -ENODEV;
3920 /* Set up SLI API function jump table */
3921 rc = lpfc_sli_api_table_setup(phba, dev_grp);
3922 if (rc)
3923 return -ENODEV;
3924 /* Set up MBOX API function jump table */
3925 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3926 if (rc)
3927 return -ENODEV;
3928
3929 return 0;
5b75da2f
JS		 3930}
3931
3932/**
3621a710 3933 * lpfc_log_intr_mode - Log the active interrupt mode
5b75da2f
JS		 3934 * @phba: pointer to lpfc hba data structure.
3935 * @intr_mode: active interrupt mode adopted.
3936 *
3937 * This routine it invoked to log the currently used active interrupt mode
3938 * to the device.
3772a991
JS		 3939 **/
3940static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5b75da2f
JS		 3941{
3942 switch (intr_mode) {
3943 case 0:
3944 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3945 "0470 Enable INTx interrupt mode.\n");
3946 break;
3947 case 1:
3948 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3949 "0481 Enabled MSI interrupt mode.\n");
3950 break;
3951 case 2:
3952 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3953 "0480 Enabled MSI-X interrupt mode.\n");
3954 break;
3955 default:
3956 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3957 "0482 Illegal interrupt mode.\n");
3958 break;
3959 }
3960 return;
3961}
3962
5b75da2f 3963/**
3772a991 3964 * lpfc_enable_pci_dev - Enable a generic PCI device.
5b75da2f
JS		 3965 * @phba: pointer to lpfc hba data structure.
3966 *
3772a991
JS		 3967 * This routine is invoked to enable the PCI device that is common to all
3968 * PCI devices.
5b75da2f
JS		 3969 *
3970 * Return codes
af901ca1 3971 * 0 - successful
3772a991 3972 * other values - error
5b75da2f 3973 **/
3772a991
JS		 3974static int
3975lpfc_enable_pci_dev(struct lpfc_hba *phba)
5b75da2f 3976{
3772a991 3977 struct pci_dev *pdev;
079b5c91 3978 int bars = 0;
5b75da2f 3979
3772a991
JS		 3980 /* Obtain PCI device reference */
3981 if (!phba->pcidev)
3982 goto out_error;
3983 else
3984 pdev = phba->pcidev;
3985 /* Select PCI BARs */
3986 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3987 /* Enable PCI device */
3988 if (pci_enable_device_mem(pdev))
3989 goto out_error;
3990 /* Request PCI resource for the device */
3991 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3992 goto out_disable_device;
3993 /* Set up device as PCI master and save state for EEH */
3994 pci_set_master(pdev);
3995 pci_try_set_mwi(pdev);
3996 pci_save_state(pdev);
5b75da2f 3997
0558056c
JS		 3998 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
3999 if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
4000 pdev->needs_freset = 1;
4001
3772a991 4002 return 0;
5b75da2f 4003
3772a991
JS		 4004out_disable_device:
4005 pci_disable_device(pdev);
4006out_error:
079b5c91
JS		 4007 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4008 "1401 Failed to enable pci device, bars:x%x\n", bars);
3772a991 4009 return -ENODEV;
5b75da2f
JS		 4010}
4011
4012/**
3772a991 4013 * lpfc_disable_pci_dev - Disable a generic PCI device.
5b75da2f
JS		 4014 * @phba: pointer to lpfc hba data structure.
4015 *
3772a991
JS		 4016 * This routine is invoked to disable the PCI device that is common to all
4017 * PCI devices.
5b75da2f
JS		 4018 **/
4019static void
3772a991 4020lpfc_disable_pci_dev(struct lpfc_hba *phba)
5b75da2f 4021{
3772a991
JS		 4022 struct pci_dev *pdev;
4023 int bars;
5b75da2f 4024
3772a991
JS		 4025 /* Obtain PCI device reference */
4026 if (!phba->pcidev)
4027 return;
4028 else
4029 pdev = phba->pcidev;
4030 /* Select PCI BARs */
4031 bars = pci_select_bars(pdev, IORESOURCE_MEM);
4032 /* Release PCI resource and disable PCI device */
4033 pci_release_selected_regions(pdev, bars);
4034 pci_disable_device(pdev);
4035 /* Null out PCI private reference to driver */
4036 pci_set_drvdata(pdev, NULL);
5b75da2f
JS		 4037
4038 return;
4039}
4040
e59058c4 4041/**
3772a991
JS		 4042 * lpfc_reset_hba - Reset a hba
4043 * @phba: pointer to lpfc hba data structure.
e59058c4 4044 *
3772a991
JS		 4045 * This routine is invoked to reset a hba device. It brings the HBA
4046 * offline, performs a board restart, and then brings the board back
4047 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4048 * on outstanding mailbox commands.
e59058c4 4049 **/
3772a991
JS		 4050void
4051lpfc_reset_hba(struct lpfc_hba *phba)
dea3101e 4052{
3772a991
JS		 4053 /* If resets are disabled then set error state and return. */
4054 if (!phba->cfg_enable_hba_reset) {
4055 phba->link_state = LPFC_HBA_ERROR;
4056 return;
4057 }
4058 lpfc_offline_prep(phba);
4059 lpfc_offline(phba);
4060 lpfc_sli_brdrestart(phba);
4061 lpfc_online(phba);
4062 lpfc_unblock_mgmt_io(phba);
4063}
dea3101e 4064
0a96e975
JS		 4065/**
4066 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4067 * @phba: pointer to lpfc hba data structure.
4068 *
4069 * This function enables the PCI SR-IOV virtual functions to a physical
4070 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4071 * enable the number of virtual functions to the physical function. As
4072 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4073 * API call does not considered as an error condition for most of the device.
4074 **/
4075uint16_t
4076lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4077{
4078 struct pci_dev *pdev = phba->pcidev;
4079 uint16_t nr_virtfn;
4080 int pos;
4081
0a96e975
JS		 4082 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4083 if (pos == 0)
4084 return 0;
4085
4086 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4087 return nr_virtfn;
4088}
4089
912e3acd
JS		 4090/**
4091 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4092 * @phba: pointer to lpfc hba data structure.
4093 * @nr_vfn: number of virtual functions to be enabled.
4094 *
4095 * This function enables the PCI SR-IOV virtual functions to a physical
4096 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4097 * enable the number of virtual functions to the physical function. As
4098 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4099 * API call does not considered as an error condition for most of the device.
4100 **/
4101int
4102lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4103{
4104 struct pci_dev *pdev = phba->pcidev;
0a96e975 4105 uint16_t max_nr_vfn;
912e3acd
JS		 4106 int rc;
4107
0a96e975
JS		 4108 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4109 if (nr_vfn > max_nr_vfn) {
4110 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4111 "3057 Requested vfs (%d) greater than "
4112 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4113 return -EINVAL;
4114 }
4115
912e3acd
JS		 4116 rc = pci_enable_sriov(pdev, nr_vfn);
4117 if (rc) {
4118 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4119 "2806 Failed to enable sriov on this device "
4120 "with vfn number nr_vf:%d, rc:%d\n",
4121 nr_vfn, rc);
4122 } else
4123 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4124 "2807 Successful enable sriov on this device "
4125 "with vfn number nr_vf:%d\n", nr_vfn);
4126 return rc;
4127}
4128
3772a991
JS		 4129/**
4130 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4131 * @phba: pointer to lpfc hba data structure.
4132 *
4133 * This routine is invoked to set up the driver internal resources specific to
4134 * support the SLI-3 HBA device it attached to.
4135 *
4136 * Return codes
af901ca1 4137 * 0 - successful
3772a991
JS		 4138 * other values - error
4139 **/
4140static int
4141lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4142{
4143 struct lpfc_sli *psli;
912e3acd 4144 int rc;
dea3101e 4145
2e0fef85 4146 /*
3772a991 4147 * Initialize timers used by driver
2e0fef85 4148 */
dea3101e 4149
3772a991 4150 /* Heartbeat timer */
858c9f6c
JS		 4151 init_timer(&phba->hb_tmofunc);
4152 phba->hb_tmofunc.function = lpfc_hb_timeout;
4153 phba->hb_tmofunc.data = (unsigned long)phba;
4154
dea3101e 4155 psli = &phba->sli;
3772a991 4156 /* MBOX heartbeat timer */
dea3101e 4157 init_timer(&psli->mbox_tmo);
4158 psli->mbox_tmo.function = lpfc_mbox_timeout;
2e0fef85 4159 psli->mbox_tmo.data = (unsigned long) phba;
3772a991 4160 /* FCP polling mode timer */
875fbdfe
JSEC		 4161 init_timer(&phba->fcp_poll_timer);
4162 phba->fcp_poll_timer.function = lpfc_poll_timeout;
2e0fef85 4163 phba->fcp_poll_timer.data = (unsigned long) phba;
3772a991 4164 /* Fabric block timer */
92d7f7b0
JS		 4165 init_timer(&phba->fabric_block_timer);
4166 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4167 phba->fabric_block_timer.data = (unsigned long) phba;
3772a991 4168 /* EA polling mode timer */
9399627f
JS		 4169 init_timer(&phba->eratt_poll);
4170 phba->eratt_poll.function = lpfc_poll_eratt;
4171 phba->eratt_poll.data = (unsigned long) phba;
dea3101e 4172
3772a991
JS		 4173 /* Host attention work mask setup */
4174 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4175 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
dea3101e 4176
3772a991
JS		 4177 /* Get all the module params for configuring this host */
4178 lpfc_get_cfgparam(phba);
49198b37
JS		 4179 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4180 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4181 /* check for menlo minimum sg count */
4182 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4183 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4184 }
4185
dea3101e 4186 /*
3772a991
JS		 4187 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4188 * used to create the sg_dma_buf_pool must be dynamically calculated.
4189 * 2 segments are added since the IOCB needs a command and response bde.
dea3101e 4190 */
3772a991
JS		 4191 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4192 sizeof(struct fcp_rsp) +
4193 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4194
4195 if (phba->cfg_enable_bg) {
4196 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4197 phba->cfg_sg_dma_buf_size +=
4198 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
901a920f 4199 }
dea3101e 4200
3772a991
JS		 4201 /* Also reinitialize the host templates with new values. */
4202 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4203 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
dea3101e 4204
3772a991
JS		 4205 phba->max_vpi = LPFC_MAX_VPI;
4206 /* This will be set to correct value after config_port mbox */
4207 phba->max_vports = 0;
dea3101e 4208
3772a991
JS		 4209 /*
4210 * Initialize the SLI Layer to run with lpfc HBAs.
4211 */
4212 lpfc_sli_setup(phba);
4213 lpfc_sli_queue_setup(phba);
ed957684 4214
3772a991
JS		 4215 /* Allocate device driver memory */
4216 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4217 return -ENOMEM;
51ef4c26 4218
912e3acd
JS		 4219 /*
4220 * Enable sr-iov virtual functions if supported and configured
4221 * through the module parameter.
4222 */
4223 if (phba->cfg_sriov_nr_virtfn > 0) {
4224 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4225 phba->cfg_sriov_nr_virtfn);
4226 if (rc) {
4227 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4228 "2808 Requested number of SR-IOV "
4229 "virtual functions (%d) is not "
4230 "supported\n",
4231 phba->cfg_sriov_nr_virtfn);
4232 phba->cfg_sriov_nr_virtfn = 0;
4233 }
4234 }
4235
3772a991
JS		 4236 return 0;
4237}
ed957684 4238
3772a991
JS		 4239/**
4240 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4241 * @phba: pointer to lpfc hba data structure.
4242 *
4243 * This routine is invoked to unset the driver internal resources set up
4244 * specific for supporting the SLI-3 HBA device it attached to.
4245 **/
4246static void
4247lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4248{
4249 /* Free device driver memory allocated */
4250 lpfc_mem_free_all(phba);
3163f725 4251
3772a991
JS		 4252 return;
4253}
dea3101e 4254
3772a991 4255/**
da0436e9 4256 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3772a991
JS		 4257 * @phba: pointer to lpfc hba data structure.
4258 *
da0436e9
JS		 4259 * This routine is invoked to set up the driver internal resources specific to
4260 * support the SLI-4 HBA device it attached to.
3772a991
JS		 4261 *
4262 * Return codes
af901ca1 4263 * 0 - successful
da0436e9 4264 * other values - error
3772a991
JS		 4265 **/
4266static int
da0436e9 4267lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3772a991 4268{
da0436e9 4269 struct lpfc_sli *psli;
28baac74
JS		 4270 LPFC_MBOXQ_t *mboxq;
4271 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
4272 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4273 struct lpfc_mqe *mqe;
085c647c 4274 int longs, sli_family;
da0436e9
JS		 4275
4276 /* Before proceed, wait for POST done and device ready */
4277 rc = lpfc_sli4_post_status_check(phba);
4278 if (rc)
4279 return -ENODEV;
4280
3772a991 4281 /*
da0436e9 4282 * Initialize timers used by driver
3772a991 4283 */
3772a991 4284
da0436e9
JS		 4285 /* Heartbeat timer */
4286 init_timer(&phba->hb_tmofunc);
4287 phba->hb_tmofunc.function = lpfc_hb_timeout;
4288 phba->hb_tmofunc.data = (unsigned long)phba;
19ca7609
JS		 4289 init_timer(&phba->rrq_tmr);
4290 phba->rrq_tmr.function = lpfc_rrq_timeout;
4291 phba->rrq_tmr.data = (unsigned long)phba;
3772a991 4292
da0436e9
JS		 4293 psli = &phba->sli;
4294 /* MBOX heartbeat timer */
4295 init_timer(&psli->mbox_tmo);
4296 psli->mbox_tmo.function = lpfc_mbox_timeout;
4297 psli->mbox_tmo.data = (unsigned long) phba;
4298 /* Fabric block timer */
4299 init_timer(&phba->fabric_block_timer);
4300 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4301 phba->fabric_block_timer.data = (unsigned long) phba;
4302 /* EA polling mode timer */
4303 init_timer(&phba->eratt_poll);
4304 phba->eratt_poll.function = lpfc_poll_eratt;
4305 phba->eratt_poll.data = (unsigned long) phba;
ecfd03c6
JS		 4306 /* FCF rediscover timer */
4307 init_timer(&phba->fcf.redisc_wait);
4308 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4309 phba->fcf.redisc_wait.data = (unsigned long)phba;
4310
7ad20aa9
JS		 4311 /*
4312 * Control structure for handling external multi-buffer mailbox
4313 * command pass-through.
4314 */
4315 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
4316 sizeof(struct lpfc_mbox_ext_buf_ctx));
4317 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4318
da0436e9
JS		 4319 /*
4320 * We need to do a READ_CONFIG mailbox command here before
4321 * calling lpfc_get_cfgparam. For VFs this will report the
4322 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4323 * All of the resources allocated
4324 * for this Port are tied to these values.
4325 */
4326 /* Get all the module params for configuring this host */
4327 lpfc_get_cfgparam(phba);
4328 phba->max_vpi = LPFC_MAX_VPI;
4329 /* This will be set to correct value after the read_config mbox */
4330 phba->max_vports = 0;
3772a991 4331
da0436e9
JS		 4332 /* Program the default value of vlan_id and fc_map */
4333 phba->valid_vlan = 0;
4334 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4335 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4336 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
3772a991 4337
da0436e9
JS		 4338 /*
4339 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4340 * used to create the sg_dma_buf_pool must be dynamically calculated.
4341 * 2 segments are added since the IOCB needs a command and response bde.
4342 * To insure that the scsi sgl does not cross a 4k page boundary only
28baac74 4343 * sgl sizes of must be a power of 2.
da0436e9 4344 */
28baac74
JS		 4345 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4346 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
085c647c
JS		 4347
4348 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
4349 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4350 switch (sli_family) {
4351 case LPFC_SLI_INTF_FAMILY_BE2:
4352 case LPFC_SLI_INTF_FAMILY_BE3:
4353 /* There is a single hint for BE - 2 pages per BPL. */
4354 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
4355 LPFC_SLI_INTF_SLI_HINT1_1)
4356 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4357 break;
4358 case LPFC_SLI_INTF_FAMILY_LNCR_A0:
4359 case LPFC_SLI_INTF_FAMILY_LNCR_B0:
4360 default:
4361 break;
4362 }
28baac74
JS		 4363 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4364 dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4365 dma_buf_size = dma_buf_size << 1)
4366 ;
4367 if (dma_buf_size == max_buf_size)
4368 phba->cfg_sg_seg_cnt = (dma_buf_size -
4369 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4370 (2 * sizeof(struct sli4_sge))) /
4371 sizeof(struct sli4_sge);
4372 phba->cfg_sg_dma_buf_size = dma_buf_size;
3772a991 4373
da0436e9
JS		 4374 /* Initialize buffer queue management fields */
4375 hbq_count = lpfc_sli_hbq_count();
4376 for (i = 0; i < hbq_count; ++i)
4377 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4378 INIT_LIST_HEAD(&phba->rb_pend_list);
4379 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4380 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
3772a991 4381
da0436e9
JS		 4382 /*
4383 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4384 */
4385 /* Initialize the Abort scsi buffer list used by driver */
4386 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4387 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4388 /* This abort list used by worker thread */
4389 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
3772a991 4390
da0436e9 4391 /*
6d368e53 4392 * Initialize driver internal slow-path work queues
da0436e9 4393 */
3772a991 4394
da0436e9
JS		 4395 /* Driver internel slow-path CQ Event pool */
4396 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4397 /* Response IOCB work queue list */
45ed1190 4398 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
da0436e9
JS		 4399 /* Asynchronous event CQ Event work queue list */
4400 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4401 /* Fast-path XRI aborted CQ Event work queue list */
4402 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4403 /* Slow-path XRI aborted CQ Event work queue list */
4404 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4405 /* Receive queue CQ Event work queue list */
4406 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4407
6d368e53
JS		 4408 /* Initialize extent block lists. */
4409 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
4410 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
4411 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
4412 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
4413
da0436e9
JS		 4414 /* Initialize the driver internal SLI layer lists. */
4415 lpfc_sli_setup(phba);
4416 lpfc_sli_queue_setup(phba);
3772a991 4417
da0436e9
JS		 4418 /* Allocate device driver memory */
4419 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4420 if (rc)
4421 return -ENOMEM;
4422
2fcee4bf
JS		 4423 /* IF Type 2 ports get initialized now. */
4424 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4425 LPFC_SLI_INTF_IF_TYPE_2) {
4426 rc = lpfc_pci_function_reset(phba);
4427 if (unlikely(rc))
4428 return -ENODEV;
4429 }
4430
da0436e9
JS		 4431 /* Create the bootstrap mailbox command */
4432 rc = lpfc_create_bootstrap_mbox(phba);
4433 if (unlikely(rc))
4434 goto out_free_mem;
4435
4436 /* Set up the host's endian order with the device. */
4437 rc = lpfc_setup_endian_order(phba);
4438 if (unlikely(rc))
4439 goto out_free_bsmbx;
4440
4441 /* Set up the hba's configuration parameters. */
4442 rc = lpfc_sli4_read_config(phba);
4443 if (unlikely(rc))
4444 goto out_free_bsmbx;
4445
2fcee4bf
JS		 4446 /* IF Type 0 ports get initialized now. */
4447 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4448 LPFC_SLI_INTF_IF_TYPE_0) {
4449 rc = lpfc_pci_function_reset(phba);
4450 if (unlikely(rc))
4451 goto out_free_bsmbx;
4452 }
da0436e9 4453
cb5172ea
JS		 4454 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4455 GFP_KERNEL);
4456 if (!mboxq) {
4457 rc = -ENOMEM;
4458 goto out_free_bsmbx;
4459 }
4460
fedd3b7b 4461 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
cb5172ea
JS		 4462 lpfc_supported_pages(mboxq);
4463 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
fedd3b7b
JS		 4464 if (!rc) {
4465 mqe = &mboxq->u.mqe;
4466 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4467 LPFC_MAX_SUPPORTED_PAGES);
4468 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4469 switch (pn_page[i]) {
4470 case LPFC_SLI4_PARAMETERS:
4471 phba->sli4_hba.pc_sli4_params.supported = 1;
4472 break;
4473 default:
4474 break;
4475 }
4476 }
4477 /* Read the port's SLI4 Parameters capabilities if supported. */
4478 if (phba->sli4_hba.pc_sli4_params.supported)
4479 rc = lpfc_pc_sli4_params_get(phba, mboxq);
4480 if (rc) {
4481 mempool_free(mboxq, phba->mbox_mem_pool);
4482 rc = -EIO;
4483 goto out_free_bsmbx;
cb5172ea
JS		 4484 }
4485 }
fedd3b7b
JS		 4486 /*
4487 * Get sli4 parameters that override parameters from Port capabilities.
6d368e53
JS		 4488 * If this call fails, it isn't critical unless the SLI4 parameters come
4489 * back in conflict.
fedd3b7b 4490 */
6d368e53
JS		 4491 rc = lpfc_get_sli4_parameters(phba, mboxq);
4492 if (rc) {
4493 if (phba->sli4_hba.extents_in_use &&
4494 phba->sli4_hba.rpi_hdrs_in_use) {
4495 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4496 "2999 Unsupported SLI4 Parameters "
4497 "Extents and RPI headers enabled.\n");
4498 goto out_free_bsmbx;
4499 }
4500 }
cb5172ea 4501 mempool_free(mboxq, phba->mbox_mem_pool);
5350d872
JS		 4502 /* Verify all the SLI4 queues */
4503 rc = lpfc_sli4_queue_verify(phba);
da0436e9
JS		 4504 if (rc)
4505 goto out_free_bsmbx;
4506
4507 /* Create driver internal CQE event pool */
4508 rc = lpfc_sli4_cq_event_pool_create(phba);
4509 if (rc)
5350d872 4510 goto out_free_bsmbx;
da0436e9
JS		 4511
4512 /* Initialize and populate the iocb list per host */
4513 rc = lpfc_init_sgl_list(phba);
4514 if (rc) {
4515 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4516 "1400 Failed to initialize sgl list.\n");
4517 goto out_destroy_cq_event_pool;
4518 }
4519 rc = lpfc_init_active_sgl_array(phba);
4520 if (rc) {
4521 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4522 "1430 Failed to initialize sgl list.\n");
4523 goto out_free_sgl_list;
4524 }
da0436e9
JS		 4525 rc = lpfc_sli4_init_rpi_hdrs(phba);
4526 if (rc) {
4527 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4528 "1432 Failed to initialize rpi headers.\n");
4529 goto out_free_active_sgl;
4530 }
4531
a93ff37a 4532 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
0c9ab6f5
JS		 4533 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4534 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4535 GFP_KERNEL);
4536 if (!phba->fcf.fcf_rr_bmask) {
4537 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4538 "2759 Failed allocate memory for FCF round "
4539 "robin failover bmask\n");
0558056c 4540 rc = -ENOMEM;
0c9ab6f5
JS		 4541 goto out_remove_rpi_hdrs;
4542 }
4543
5350d872
JS		 4544 /*
4545 * The cfg_fcp_eq_count can be zero whenever there is exactly one
4546 * interrupt vector. This is not an error
4547 */
4548 if (phba->cfg_fcp_eq_count) {
4549 phba->sli4_hba.fcp_eq_hdl =
4550 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
da0436e9 4551 phba->cfg_fcp_eq_count), GFP_KERNEL);
5350d872
JS		 4552 if (!phba->sli4_hba.fcp_eq_hdl) {
4553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4554 "2572 Failed allocate memory for "
4555 "fast-path per-EQ handle array\n");
4556 rc = -ENOMEM;
4557 goto out_free_fcf_rr_bmask;
4558 }
da0436e9
JS		 4559 }
4560
4561 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4562 phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4563 if (!phba->sli4_hba.msix_entries) {
4564 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4565 "2573 Failed allocate memory for msi-x "
4566 "interrupt vector entries\n");
0558056c 4567 rc = -ENOMEM;
da0436e9
JS		 4568 goto out_free_fcp_eq_hdl;
4569 }
4570
912e3acd
JS		 4571 /*
4572 * Enable sr-iov virtual functions if supported and configured
4573 * through the module parameter.
4574 */
4575 if (phba->cfg_sriov_nr_virtfn > 0) {
4576 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4577 phba->cfg_sriov_nr_virtfn);
4578 if (rc) {
4579 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4580 "3020 Requested number of SR-IOV "
4581 "virtual functions (%d) is not "
4582 "supported\n",
4583 phba->cfg_sriov_nr_virtfn);
4584 phba->cfg_sriov_nr_virtfn = 0;
4585 }
4586 }
4587
5248a749 4588 return 0;
da0436e9
JS		 4589
4590out_free_fcp_eq_hdl:
4591 kfree(phba->sli4_hba.fcp_eq_hdl);
0c9ab6f5
JS		 4592out_free_fcf_rr_bmask:
4593 kfree(phba->fcf.fcf_rr_bmask);
da0436e9
JS		 4594out_remove_rpi_hdrs:
4595 lpfc_sli4_remove_rpi_hdrs(phba);
4596out_free_active_sgl:
4597 lpfc_free_active_sgl(phba);
4598out_free_sgl_list:
4599 lpfc_free_sgl_list(phba);
4600out_destroy_cq_event_pool:
4601 lpfc_sli4_cq_event_pool_destroy(phba);
da0436e9
JS		 4602out_free_bsmbx:
4603 lpfc_destroy_bootstrap_mbox(phba);
4604out_free_mem:
4605 lpfc_mem_free(phba);
4606 return rc;
4607}
4608
4609/**
4610 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4611 * @phba: pointer to lpfc hba data structure.
4612 *
4613 * This routine is invoked to unset the driver internal resources set up
4614 * specific for supporting the SLI-4 HBA device it attached to.
4615 **/
4616static void
4617lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4618{
4619 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4620
da0436e9
JS		 4621 /* Free memory allocated for msi-x interrupt vector entries */
4622 kfree(phba->sli4_hba.msix_entries);
4623
4624 /* Free memory allocated for fast-path work queue handles */
4625 kfree(phba->sli4_hba.fcp_eq_hdl);
4626
4627 /* Free the allocated rpi headers. */
4628 lpfc_sli4_remove_rpi_hdrs(phba);
d11e31dd 4629 lpfc_sli4_remove_rpis(phba);
da0436e9 4630
0c9ab6f5
JS		 4631 /* Free eligible FCF index bmask */
4632 kfree(phba->fcf.fcf_rr_bmask);
4633
da0436e9
JS		 4634 /* Free the ELS sgl list */
4635 lpfc_free_active_sgl(phba);
4636 lpfc_free_sgl_list(phba);
4637
4638 /* Free the SCSI sgl management array */
4639 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4640
da0436e9
JS		 4641 /* Free the completion queue EQ event pool */
4642 lpfc_sli4_cq_event_release_all(phba);
4643 lpfc_sli4_cq_event_pool_destroy(phba);
4644
6d368e53
JS		 4645 /* Release resource identifiers. */
4646 lpfc_sli4_dealloc_resource_identifiers(phba);
4647
da0436e9
JS		 4648 /* Free the bsmbx region. */
4649 lpfc_destroy_bootstrap_mbox(phba);
4650
4651 /* Free the SLI Layer memory with SLI4 HBAs */
4652 lpfc_mem_free_all(phba);
4653
4654 /* Free the current connect table */
4655 list_for_each_entry_safe(conn_entry, next_conn_entry,
4d9ab994
JS		 4656 &phba->fcf_conn_rec_list, list) {
4657 list_del_init(&conn_entry->list);
da0436e9 4658 kfree(conn_entry);
4d9ab994 4659 }
da0436e9
JS		 4660
4661 return;
4662}
4663
4664/**
25985edc 4665 * lpfc_init_api_table_setup - Set up init api function jump table
da0436e9
JS		 4666 * @phba: The hba struct for which this call is being executed.
4667 * @dev_grp: The HBA PCI-Device group number.
4668 *
4669 * This routine sets up the device INIT interface API function jump table
4670 * in @phba struct.
4671 *
4672 * Returns: 0 - success, -ENODEV - failure.
4673 **/
4674int
4675lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4676{
84d1b006
JS		 4677 phba->lpfc_hba_init_link = lpfc_hba_init_link;
4678 phba->lpfc_hba_down_link = lpfc_hba_down_link;
7f86059a 4679 phba->lpfc_selective_reset = lpfc_selective_reset;
da0436e9
JS		 4680 switch (dev_grp) {
4681 case LPFC_PCI_DEV_LP:
4682 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4683 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4684 phba->lpfc_stop_port = lpfc_stop_port_s3;
4685 break;
4686 case LPFC_PCI_DEV_OC:
4687 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4688 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4689 phba->lpfc_stop_port = lpfc_stop_port_s4;
4690 break;
4691 default:
4692 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4693 "1431 Invalid HBA PCI-device group: 0x%x\n",
4694 dev_grp);
4695 return -ENODEV;
4696 break;
4697 }
4698 return 0;
4699}
4700
4701/**
4702 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4703 * @phba: pointer to lpfc hba data structure.
4704 *
4705 * This routine is invoked to set up the driver internal resources before the
4706 * device specific resource setup to support the HBA device it attached to.
4707 *
4708 * Return codes
af901ca1 4709 * 0 - successful
da0436e9
JS		 4710 * other values - error
4711 **/
4712static int
4713lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4714{
4715 /*
4716 * Driver resources common to all SLI revisions
4717 */
4718 atomic_set(&phba->fast_event_count, 0);
4719 spin_lock_init(&phba->hbalock);
4720
4721 /* Initialize ndlp management spinlock */
4722 spin_lock_init(&phba->ndlp_lock);
4723
4724 INIT_LIST_HEAD(&phba->port_list);
4725 INIT_LIST_HEAD(&phba->work_list);
4726 init_waitqueue_head(&phba->wait_4_mlo_m_q);
4727
4728 /* Initialize the wait queue head for the kernel thread */
4729 init_waitqueue_head(&phba->work_waitq);
4730
4731 /* Initialize the scsi buffer list used by driver for scsi IO */
4732 spin_lock_init(&phba->scsi_buf_list_lock);
4733 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4734
4735 /* Initialize the fabric iocb list */
4736 INIT_LIST_HEAD(&phba->fabric_iocb_list);
4737
4738 /* Initialize list to save ELS buffers */
4739 INIT_LIST_HEAD(&phba->elsbuf);
4740
4741 /* Initialize FCF connection rec list */
4742 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4743
4744 return 0;
4745}
4746
4747/**
4748 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4749 * @phba: pointer to lpfc hba data structure.
4750 *
4751 * This routine is invoked to set up the driver internal resources after the
4752 * device specific resource setup to support the HBA device it attached to.
4753 *
4754 * Return codes
af901ca1 4755 * 0 - successful
da0436e9
JS		 4756 * other values - error
4757 **/
4758static int
4759lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4760{
4761 int error;
4762
4763 /* Startup the kernel thread for this host adapter. */
4764 phba->worker_thread = kthread_run(lpfc_do_work, phba,
4765 "lpfc_worker_%d", phba->brd_no);
4766 if (IS_ERR(phba->worker_thread)) {
4767 error = PTR_ERR(phba->worker_thread);
4768 return error;
3772a991
JS		 4769 }
4770
4771 return 0;
4772}
4773
4774/**
4775 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4776 * @phba: pointer to lpfc hba data structure.
4777 *
4778 * This routine is invoked to unset the driver internal resources set up after
4779 * the device specific resource setup for supporting the HBA device it
4780 * attached to.
4781 **/
4782static void
4783lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4784{
4785 /* Stop kernel worker thread */
4786 kthread_stop(phba->worker_thread);
4787}
4788
4789/**
4790 * lpfc_free_iocb_list - Free iocb list.
4791 * @phba: pointer to lpfc hba data structure.
4792 *
4793 * This routine is invoked to free the driver's IOCB list and memory.
4794 **/
4795static void
4796lpfc_free_iocb_list(struct lpfc_hba *phba)
4797{
4798 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4799
4800 spin_lock_irq(&phba->hbalock);
4801 list_for_each_entry_safe(iocbq_entry, iocbq_next,
4802 &phba->lpfc_iocb_list, list) {
4803 list_del(&iocbq_entry->list);
4804 kfree(iocbq_entry);
4805 phba->total_iocbq_bufs--;
98c9ea5c 4806 }
3772a991
JS		 4807 spin_unlock_irq(&phba->hbalock);
4808
4809 return;
4810}
4811
4812/**
4813 * lpfc_init_iocb_list - Allocate and initialize iocb list.
4814 * @phba: pointer to lpfc hba data structure.
4815 *
4816 * This routine is invoked to allocate and initizlize the driver's IOCB
4817 * list and set up the IOCB tag array accordingly.
4818 *
4819 * Return codes
af901ca1 4820 * 0 - successful
3772a991
JS		 4821 * other values - error
4822 **/
4823static int
4824lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4825{
4826 struct lpfc_iocbq *iocbq_entry = NULL;
4827 uint16_t iotag;
4828 int i;
dea3101e 4829
4830 /* Initialize and populate the iocb list per host. */
4831 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
3772a991 4832 for (i = 0; i < iocb_count; i++) {
dd00cc48 4833 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
dea3101e 4834 if (iocbq_entry == NULL) {
4835 printk(KERN_ERR "%s: only allocated %d iocbs of "
4836 "expected %d count. Unloading driver.\n",
cadbd4a5 4837 __func__, i, LPFC_IOCB_LIST_CNT);
dea3101e 4838 goto out_free_iocbq;
4839 }
4840
604a3e30
JB		 4841 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4842 if (iotag == 0) {
3772a991 4843 kfree(iocbq_entry);
604a3e30 4844 printk(KERN_ERR "%s: failed to allocate IOTAG. "
3772a991 4845 "Unloading driver.\n", __func__);
604a3e30
JB		 4846 goto out_free_iocbq;
4847 }
6d368e53 4848 iocbq_entry->sli4_lxritag = NO_XRI;
3772a991 4849 iocbq_entry->sli4_xritag = NO_XRI;
2e0fef85
JS		 4850
4851 spin_lock_irq(&phba->hbalock);
dea3101e 4852 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4853 phba->total_iocbq_bufs++;
2e0fef85 4854 spin_unlock_irq(&phba->hbalock);
dea3101e 4855 }
4856
3772a991 4857 return 0;
dea3101e 4858
3772a991
JS		 4859out_free_iocbq:
4860 lpfc_free_iocb_list(phba);
dea3101e 4861
3772a991
JS		 4862 return -ENOMEM;
4863}
5e9d9b82 4864
3772a991 4865/**
da0436e9
JS		 4866 * lpfc_free_sgl_list - Free sgl list.
4867 * @phba: pointer to lpfc hba data structure.
3772a991 4868 *
da0436e9 4869 * This routine is invoked to free the driver's sgl list and memory.
3772a991 4870 **/
da0436e9
JS		 4871static void
4872lpfc_free_sgl_list(struct lpfc_hba *phba)
3772a991 4873{
da0436e9
JS		 4874 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
4875 LIST_HEAD(sglq_list);
dea3101e 4876
da0436e9
JS		 4877 spin_lock_irq(&phba->hbalock);
4878 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
4879 spin_unlock_irq(&phba->hbalock);
dea3101e 4880
da0436e9
JS		 4881 list_for_each_entry_safe(sglq_entry, sglq_next,
4882 &sglq_list, list) {
4883 list_del(&sglq_entry->list);
4884 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
4885 kfree(sglq_entry);
4886 phba->sli4_hba.total_sglq_bufs--;
4887 }
da0436e9
JS		 4888 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4889}
92d7f7b0 4890
da0436e9
JS		 4891/**
4892 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4893 * @phba: pointer to lpfc hba data structure.
4894 *
4895 * This routine is invoked to allocate the driver's active sgl memory.
4896 * This array will hold the sglq_entry's for active IOs.
4897 **/
4898static int
4899lpfc_init_active_sgl_array(struct lpfc_hba *phba)
4900{
4901 int size;
4902 size = sizeof(struct lpfc_sglq *);
4903 size *= phba->sli4_hba.max_cfg_param.max_xri;
4904
4905 phba->sli4_hba.lpfc_sglq_active_list =
4906 kzalloc(size, GFP_KERNEL);
4907 if (!phba->sli4_hba.lpfc_sglq_active_list)
4908 return -ENOMEM;
4909 return 0;
3772a991
JS		 4910}
4911
4912/**
da0436e9 4913 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
3772a991
JS		 4914 * @phba: pointer to lpfc hba data structure.
4915 *
da0436e9
JS		 4916 * This routine is invoked to walk through the array of active sglq entries
4917 * and free all of the resources.
4918 * This is just a place holder for now.
3772a991
JS		 4919 **/
4920static void
da0436e9 4921lpfc_free_active_sgl(struct lpfc_hba *phba)
3772a991 4922{
da0436e9 4923 kfree(phba->sli4_hba.lpfc_sglq_active_list);
3772a991
JS		 4924}
4925
4926/**
da0436e9 4927 * lpfc_init_sgl_list - Allocate and initialize sgl list.
3772a991
JS		 4928 * @phba: pointer to lpfc hba data structure.
4929 *
da0436e9
JS		 4930 * This routine is invoked to allocate and initizlize the driver's sgl
4931 * list and set up the sgl xritag tag array accordingly.
3772a991
JS		 4932 *
4933 * Return codes
af901ca1 4934 * 0 - successful
da0436e9 4935 * other values - error
3772a991
JS		 4936 **/
4937static int
da0436e9 4938lpfc_init_sgl_list(struct lpfc_hba *phba)
3772a991 4939{
da0436e9
JS		 4940 struct lpfc_sglq *sglq_entry = NULL;
4941 int i;
4942 int els_xri_cnt;
4943
4944 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4945 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6d368e53 4946 "2400 ELS XRI count %d.\n",
da0436e9
JS		 4947 els_xri_cnt);
4948 /* Initialize and populate the sglq list per host/VF. */
4949 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4950 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4951
4952 /* Sanity check on XRI management */
4953 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4954 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4955 "2562 No room left for SCSI XRI allocation: "
4956 "max_xri=%d, els_xri=%d\n",
4957 phba->sli4_hba.max_cfg_param.max_xri,
4958 els_xri_cnt);
4959 return -ENOMEM;
4960 }
3772a991 4961
da0436e9
JS		 4962 /* Allocate memory for the ELS XRI management array */
4963 phba->sli4_hba.lpfc_els_sgl_array =
4964 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4965 GFP_KERNEL);
0ff10d46 4966
da0436e9
JS		 4967 if (!phba->sli4_hba.lpfc_els_sgl_array) {
4968 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4969 "2401 Failed to allocate memory for ELS "
4970 "XRI management array of size %d.\n",
4971 els_xri_cnt);
4972 return -ENOMEM;
4973 }
2e0fef85 4974
da0436e9
JS		 4975 /* Keep the SCSI XRI into the XRI management array */
4976 phba->sli4_hba.scsi_xri_max =
4977 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4978 phba->sli4_hba.scsi_xri_cnt = 0;
da0436e9
JS		 4979 phba->sli4_hba.lpfc_scsi_psb_array =
4980 kzalloc((sizeof(struct lpfc_scsi_buf *) *
4981 phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4982
4983 if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4984 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4985 "2563 Failed to allocate memory for SCSI "
4986 "XRI management array of size %d.\n",
4987 phba->sli4_hba.scsi_xri_max);
4988 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4989 return -ENOMEM;
4990 }
4991
4992 for (i = 0; i < els_xri_cnt; i++) {
4993 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4994 if (sglq_entry == NULL) {
4995 printk(KERN_ERR "%s: only allocated %d sgls of "
4996 "expected %d count. Unloading driver.\n",
4997 __func__, i, els_xri_cnt);
4998 goto out_free_mem;
4999 }
5000
da0436e9
JS		 5001 sglq_entry->buff_type = GEN_BUFF_TYPE;
5002 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
5003 if (sglq_entry->virt == NULL) {
5004 kfree(sglq_entry);
5005 printk(KERN_ERR "%s: failed to allocate mbuf.\n"
5006 "Unloading driver.\n", __func__);
5007 goto out_free_mem;
5008 }
5009 sglq_entry->sgl = sglq_entry->virt;
5010 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
5011
5012 /* The list order is used by later block SGL registraton */
5013 spin_lock_irq(&phba->hbalock);
0f65ff68 5014 sglq_entry->state = SGL_FREED;
da0436e9
JS		 5015 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
5016 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
5017 phba->sli4_hba.total_sglq_bufs++;
5018 spin_unlock_irq(&phba->hbalock);
5019 }
5020 return 0;
5021
5022out_free_mem:
5023 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
5024 lpfc_free_sgl_list(phba);
5025 return -ENOMEM;
5026}
5027
5028/**
5029 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5030 * @phba: pointer to lpfc hba data structure.
5031 *
5032 * This routine is invoked to post rpi header templates to the
88a2cfbb 5033 * port for those SLI4 ports that do not support extents. This routine
da0436e9 5034 * posts a PAGE_SIZE memory region to the port to hold up to
88a2cfbb
JS		 5035 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine
5036 * and should be called only when interrupts are disabled.
da0436e9
JS		 5037 *
5038 * Return codes
af901ca1 5039 * 0 - successful
88a2cfbb 5040 * -ERROR - otherwise.
da0436e9
JS		 5041 **/
5042int
5043lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5044{
5045 int rc = 0;
da0436e9
JS		 5046 struct lpfc_rpi_hdr *rpi_hdr;
5047
5048 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
ff78d8f9 5049 if (!phba->sli4_hba.rpi_hdrs_in_use)
6d368e53 5050 return rc;
6d368e53
JS		 5051 if (phba->sli4_hba.extents_in_use)
5052 return -EIO;
da0436e9
JS		 5053
5054 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5055 if (!rpi_hdr) {
5056 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5057 "0391 Error during rpi post operation\n");
5058 lpfc_sli4_remove_rpis(phba);
5059 rc = -ENODEV;
5060 }
5061
5062 return rc;
5063}
5064
5065/**
5066 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5067 * @phba: pointer to lpfc hba data structure.
5068 *
5069 * This routine is invoked to allocate a single 4KB memory region to
5070 * support rpis and stores them in the phba. This single region
5071 * provides support for up to 64 rpis. The region is used globally
5072 * by the device.
5073 *
5074 * Returns:
5075 * A valid rpi hdr on success.
5076 * A NULL pointer on any failure.
5077 **/
5078struct lpfc_rpi_hdr *
5079lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5080{
5081 uint16_t rpi_limit, curr_rpi_range;
5082 struct lpfc_dmabuf *dmabuf;
5083 struct lpfc_rpi_hdr *rpi_hdr;
9589b062 5084 uint32_t rpi_count;
da0436e9 5085
6d368e53
JS		 5086 /*
5087 * If the SLI4 port supports extents, posting the rpi header isn't
5088 * required. Set the expected maximum count and let the actual value
5089 * get set when extents are fully allocated.
5090 */
5091 if (!phba->sli4_hba.rpi_hdrs_in_use)
5092 return NULL;
5093 if (phba->sli4_hba.extents_in_use)
5094 return NULL;
5095
5096 /* The limit on the logical index is just the max_rpi count. */
da0436e9 5097 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
6d368e53 5098 phba->sli4_hba.max_cfg_param.max_rpi - 1;
da0436e9
JS		 5099
5100 spin_lock_irq(&phba->hbalock);
6d368e53
JS		 5101 /*
5102 * Establish the starting RPI in this header block. The starting
5103 * rpi is normalized to a zero base because the physical rpi is
5104 * port based.
5105 */
5106 curr_rpi_range = phba->sli4_hba.next_rpi -
5107 phba->sli4_hba.max_cfg_param.rpi_base;
da0436e9
JS		 5108 spin_unlock_irq(&phba->hbalock);
5109
5110 /*
5111 * The port has a limited number of rpis. The increment here
5112 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5113 * and to allow the full max_rpi range per port.
5114 */
5115 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
9589b062
JS		 5116 rpi_count = rpi_limit - curr_rpi_range;
5117 else
5118 rpi_count = LPFC_RPI_HDR_COUNT;
da0436e9 5119
6d368e53
JS		 5120 if (!rpi_count)
5121 return NULL;
da0436e9
JS		 5122 /*
5123 * First allocate the protocol header region for the port. The
5124 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5125 */
5126 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5127 if (!dmabuf)
5128 return NULL;
5129
5130 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5131 LPFC_HDR_TEMPLATE_SIZE,
5132 &dmabuf->phys,
5133 GFP_KERNEL);
5134 if (!dmabuf->virt) {
5135 rpi_hdr = NULL;
5136 goto err_free_dmabuf;
5137 }
5138
5139 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5140 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5141 rpi_hdr = NULL;
5142 goto err_free_coherent;
5143 }
5144
5145 /* Save the rpi header data for cleanup later. */
5146 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5147 if (!rpi_hdr)
5148 goto err_free_coherent;
5149
5150 rpi_hdr->dmabuf = dmabuf;
5151 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5152 rpi_hdr->page_count = 1;
5153 spin_lock_irq(&phba->hbalock);
6d368e53
JS		 5154
5155 /* The rpi_hdr stores the logical index only. */
5156 rpi_hdr->start_rpi = curr_rpi_range;
da0436e9
JS		 5157 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5158
5159 /*
6d368e53
JS		 5160 * The next_rpi stores the next logical module-64 rpi value used
5161 * to post physical rpis in subsequent rpi postings.
da0436e9 5162 */
9589b062 5163 phba->sli4_hba.next_rpi += rpi_count;
da0436e9
JS		 5164 spin_unlock_irq(&phba->hbalock);
5165 return rpi_hdr;
5166
5167 err_free_coherent:
5168 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5169 dmabuf->virt, dmabuf->phys);
5170 err_free_dmabuf:
5171 kfree(dmabuf);
5172 return NULL;
5173}
5174
5175/**
5176 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5177 * @phba: pointer to lpfc hba data structure.
5178 *
5179 * This routine is invoked to remove all memory resources allocated
6d368e53
JS		 5180 * to support rpis for SLI4 ports not supporting extents. This routine
5181 * presumes the caller has released all rpis consumed by fabric or port
5182 * logins and is prepared to have the header pages removed.
da0436e9
JS		 5183 **/
5184void
5185lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5186{
5187 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5188
6d368e53
JS		 5189 if (!phba->sli4_hba.rpi_hdrs_in_use)
5190 goto exit;
5191
da0436e9
JS		 5192 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5193 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5194 list_del(&rpi_hdr->list);
5195 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5196 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5197 kfree(rpi_hdr->dmabuf);
5198 kfree(rpi_hdr);
5199 }
6d368e53
JS		 5200 exit:
5201 /* There are no rpis available to the port now. */
5202 phba->sli4_hba.next_rpi = 0;
da0436e9
JS		 5203}
5204
5205/**
5206 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5207 * @pdev: pointer to pci device data structure.
5208 *
5209 * This routine is invoked to allocate the driver hba data structure for an
5210 * HBA device. If the allocation is successful, the phba reference to the
5211 * PCI device data structure is set.
5212 *
5213 * Return codes
af901ca1 5214 * pointer to @phba - successful
da0436e9
JS		 5215 * NULL - error
5216 **/
5217static struct lpfc_hba *
5218lpfc_hba_alloc(struct pci_dev *pdev)
5219{
5220 struct lpfc_hba *phba;
5221
5222 /* Allocate memory for HBA structure */
5223 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5224 if (!phba) {
e34ccdfe 5225 dev_err(&pdev->dev, "failed to allocate hba struct\n");
da0436e9
JS		 5226 return NULL;
5227 }
5228
5229 /* Set reference to PCI device in HBA structure */
5230 phba->pcidev = pdev;
5231
5232 /* Assign an unused board number */
5233 phba->brd_no = lpfc_get_instance();
5234 if (phba->brd_no < 0) {
5235 kfree(phba);
5236 return NULL;
5237 }
5238
4fede78f 5239 spin_lock_init(&phba->ct_ev_lock);
f1c3b0fc
JS		 5240 INIT_LIST_HEAD(&phba->ct_ev_waiters);
5241
da0436e9
JS		 5242 return phba;
5243}
5244
5245/**
5246 * lpfc_hba_free - Free driver hba data structure with a device.
5247 * @phba: pointer to lpfc hba data structure.
5248 *
5249 * This routine is invoked to free the driver hba data structure with an
5250 * HBA device.
5251 **/
5252static void
5253lpfc_hba_free(struct lpfc_hba *phba)
5254{
5255 /* Release the driver assigned board number */
5256 idr_remove(&lpfc_hba_index, phba->brd_no);
5257
5258 kfree(phba);
5259 return;
5260}
5261
5262/**
5263 * lpfc_create_shost - Create hba physical port with associated scsi host.
5264 * @phba: pointer to lpfc hba data structure.
5265 *
5266 * This routine is invoked to create HBA physical port and associate a SCSI
5267 * host with it.
5268 *
5269 * Return codes
af901ca1 5270 * 0 - successful
da0436e9
JS		 5271 * other values - error
5272 **/
5273static int
5274lpfc_create_shost(struct lpfc_hba *phba)
5275{
5276 struct lpfc_vport *vport;
5277 struct Scsi_Host *shost;
5278
5279 /* Initialize HBA FC structure */
5280 phba->fc_edtov = FF_DEF_EDTOV;
5281 phba->fc_ratov = FF_DEF_RATOV;
5282 phba->fc_altov = FF_DEF_ALTOV;
5283 phba->fc_arbtov = FF_DEF_ARBTOV;
5284
d7c47992 5285 atomic_set(&phba->sdev_cnt, 0);
da0436e9
JS		 5286 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5287 if (!vport)
5288 return -ENODEV;
5289
5290 shost = lpfc_shost_from_vport(vport);
5291 phba->pport = vport;
5292 lpfc_debugfs_initialize(vport);
5293 /* Put reference to SCSI host to driver's device private data */
5294 pci_set_drvdata(phba->pcidev, shost);
2e0fef85 5295
3772a991
JS		 5296 return 0;
5297}
db2378e0 5298
3772a991
JS		 5299/**
5300 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5301 * @phba: pointer to lpfc hba data structure.
5302 *
5303 * This routine is invoked to destroy HBA physical port and the associated
5304 * SCSI host.
5305 **/
5306static void
5307lpfc_destroy_shost(struct lpfc_hba *phba)
5308{
5309 struct lpfc_vport *vport = phba->pport;
5310
5311 /* Destroy physical port that associated with the SCSI host */
5312 destroy_port(vport);
5313
5314 return;
5315}
5316
5317/**
5318 * lpfc_setup_bg - Setup Block guard structures and debug areas.
5319 * @phba: pointer to lpfc hba data structure.
5320 * @shost: the shost to be used to detect Block guard settings.
5321 *
5322 * This routine sets up the local Block guard protocol settings for @shost.
5323 * This routine also allocates memory for debugging bg buffers.
5324 **/
5325static void
5326lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5327{
5328 int pagecnt = 10;
5329 if (lpfc_prot_mask && lpfc_prot_guard) {
5330 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5331 "1478 Registering BlockGuard with the "
5332 "SCSI layer\n");
5333 scsi_host_set_prot(shost, lpfc_prot_mask);
5334 scsi_host_set_guard(shost, lpfc_prot_guard);
5335 }
5336 if (!_dump_buf_data) {
5337 while (pagecnt) {
5338 spin_lock_init(&_dump_buf_lock);
5339 _dump_buf_data =
5340 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5341 if (_dump_buf_data) {
6a9c52cf
JS		 5342 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5343 "9043 BLKGRD: allocated %d pages for "
3772a991
JS		 5344 "_dump_buf_data at 0x%p\n",
5345 (1 << pagecnt), _dump_buf_data);
5346 _dump_buf_data_order = pagecnt;
5347 memset(_dump_buf_data, 0,
5348 ((1 << PAGE_SHIFT) << pagecnt));
5349 break;
5350 } else
5351 --pagecnt;
5352 }
5353 if (!_dump_buf_data_order)
6a9c52cf
JS		 5354 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5355 "9044 BLKGRD: ERROR unable to allocate "
3772a991
JS		 5356 "memory for hexdump\n");
5357 } else
6a9c52cf
JS		 5358 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5359 "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
3772a991
JS		 5360 "\n", _dump_buf_data);
5361 if (!_dump_buf_dif) {
5362 while (pagecnt) {
5363 _dump_buf_dif =
5364 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5365 if (_dump_buf_dif) {
6a9c52cf
JS		 5366 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5367 "9046 BLKGRD: allocated %d pages for "
3772a991
JS		 5368 "_dump_buf_dif at 0x%p\n",
5369 (1 << pagecnt), _dump_buf_dif);
5370 _dump_buf_dif_order = pagecnt;
5371 memset(_dump_buf_dif, 0,
5372 ((1 << PAGE_SHIFT) << pagecnt));
5373 break;
5374 } else
5375 --pagecnt;
5376 }
5377 if (!_dump_buf_dif_order)
6a9c52cf
JS		 5378 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5379 "9047 BLKGRD: ERROR unable to allocate "
3772a991
JS		 5380 "memory for hexdump\n");
5381 } else
6a9c52cf
JS		 5382 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5383 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
3772a991
JS		 5384 _dump_buf_dif);
5385}
5386
5387/**
5388 * lpfc_post_init_setup - Perform necessary device post initialization setup.
5389 * @phba: pointer to lpfc hba data structure.
5390 *
5391 * This routine is invoked to perform all the necessary post initialization
5392 * setup for the device.
5393 **/
5394static void
5395lpfc_post_init_setup(struct lpfc_hba *phba)
5396{
5397 struct Scsi_Host *shost;
5398 struct lpfc_adapter_event_header adapter_event;
5399
5400 /* Get the default values for Model Name and Description */
5401 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5402
5403 /*
5404 * hba setup may have changed the hba_queue_depth so we need to
5405 * adjust the value of can_queue.
5406 */
5407 shost = pci_get_drvdata(phba->pcidev);
5408 shost->can_queue = phba->cfg_hba_queue_depth - 10;
5409 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5410 lpfc_setup_bg(phba, shost);
5411
5412 lpfc_host_attrib_init(shost);
5413
5414 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5415 spin_lock_irq(shost->host_lock);
5416 lpfc_poll_start_timer(phba);
5417 spin_unlock_irq(shost->host_lock);
5418 }
5419
5420 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5421 "0428 Perform SCSI scan\n");
5422 /* Send board arrival event to upper layer */
5423 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5424 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5425 fc_host_post_vendor_event(shost, fc_get_event_number(),
5426 sizeof(adapter_event),
5427 (char *) &adapter_event,
5428 LPFC_NL_VENDOR_ID);
5429 return;
5430}
5431
5432/**
5433 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5434 * @phba: pointer to lpfc hba data structure.
5435 *
5436 * This routine is invoked to set up the PCI device memory space for device
5437 * with SLI-3 interface spec.
5438 *
5439 * Return codes
af901ca1 5440 * 0 - successful
3772a991
JS		 5441 * other values - error
5442 **/
5443static int
5444lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5445{
5446 struct pci_dev *pdev;
5447 unsigned long bar0map_len, bar2map_len;
5448 int i, hbq_count;
5449 void *ptr;
5450 int error = -ENODEV;
5451
5452 /* Obtain PCI device reference */
5453 if (!phba->pcidev)
5454 return error;
5455 else
5456 pdev = phba->pcidev;
5457
5458 /* Set the device DMA mask size */
8e68597d
MR		 5459 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5460 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5461 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5462 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
3772a991 5463 return error;
8e68597d
MR		 5464 }
5465 }
3772a991
JS		 5466
5467 /* Get the bus address of Bar0 and Bar2 and the number of bytes
5468 * required by each mapping.
5469 */
5470 phba->pci_bar0_map = pci_resource_start(pdev, 0);
5471 bar0map_len = pci_resource_len(pdev, 0);
5472
5473 phba->pci_bar2_map = pci_resource_start(pdev, 2);
5474 bar2map_len = pci_resource_len(pdev, 2);
5475
5476 /* Map HBA SLIM to a kernel virtual address. */
5477 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5478 if (!phba->slim_memmap_p) {
5479 dev_printk(KERN_ERR, &pdev->dev,
5480 "ioremap failed for SLIM memory.\n");
5481 goto out;
5482 }
5483
5484 /* Map HBA Control Registers to a kernel virtual address. */
5485 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5486 if (!phba->ctrl_regs_memmap_p) {
5487 dev_printk(KERN_ERR, &pdev->dev,
5488 "ioremap failed for HBA control registers.\n");
5489 goto out_iounmap_slim;
5490 }
5491
5492 /* Allocate memory for SLI-2 structures */
5493 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5494 SLI2_SLIM_SIZE,
5495 &phba->slim2p.phys,
5496 GFP_KERNEL);
5497 if (!phba->slim2p.virt)
5498 goto out_iounmap;
5499
5500 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5501 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7a470277
JS		 5502 phba->mbox_ext = (phba->slim2p.virt +
5503 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
3772a991
JS		 5504 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5505 phba->IOCBs = (phba->slim2p.virt +
5506 offsetof(struct lpfc_sli2_slim, IOCBs));
5507
5508 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5509 lpfc_sli_hbq_size(),
5510 &phba->hbqslimp.phys,
5511 GFP_KERNEL);
5512 if (!phba->hbqslimp.virt)
5513 goto out_free_slim;
5514
5515 hbq_count = lpfc_sli_hbq_count();
5516 ptr = phba->hbqslimp.virt;
5517 for (i = 0; i < hbq_count; ++i) {
5518 phba->hbqs[i].hbq_virt = ptr;
5519 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5520 ptr += (lpfc_hbq_defs[i]->entry_count *
5521 sizeof(struct lpfc_hbq_entry));
5522 }
5523 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5524 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5525
5526 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5527
5528 INIT_LIST_HEAD(&phba->rb_pend_list);
5529
5530 phba->MBslimaddr = phba->slim_memmap_p;
5531 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5532 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5533 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5534 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5535
5536 return 0;
5537
5538out_free_slim:
5539 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5540 phba->slim2p.virt, phba->slim2p.phys);
5541out_iounmap:
5542 iounmap(phba->ctrl_regs_memmap_p);
5543out_iounmap_slim:
5544 iounmap(phba->slim_memmap_p);
5545out:
5546 return error;
5547}
5548
5549/**
5550 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5551 * @phba: pointer to lpfc hba data structure.
5552 *
5553 * This routine is invoked to unset the PCI device memory space for device
5554 * with SLI-3 interface spec.
5555 **/
5556static void
5557lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5558{
5559 struct pci_dev *pdev;
5560
5561 /* Obtain PCI device reference */
5562 if (!phba->pcidev)
5563 return;
5564 else
5565 pdev = phba->pcidev;
5566
5567 /* Free coherent DMA memory allocated */
5568 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5569 phba->hbqslimp.virt, phba->hbqslimp.phys);
5570 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5571 phba->slim2p.virt, phba->slim2p.phys);
5572
5573 /* I/O memory unmap */
5574 iounmap(phba->ctrl_regs_memmap_p);
5575 iounmap(phba->slim_memmap_p);
5576
5577 return;
5578}
5579
5580/**
da0436e9 5581 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
3772a991
JS		 5582 * @phba: pointer to lpfc hba data structure.
5583 *
da0436e9
JS		 5584 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5585 * done and check status.
3772a991 5586 *
da0436e9 5587 * Return 0 if successful, otherwise -ENODEV.
3772a991 5588 **/
da0436e9
JS		 5589int
5590lpfc_sli4_post_status_check(struct lpfc_hba *phba)
3772a991 5591{
2fcee4bf
JS		 5592 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
5593 struct lpfc_register reg_data;
5594 int i, port_error = 0;
5595 uint32_t if_type;
3772a991 5596
9940b97b
JS		 5597 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
5598 memset(&reg_data, 0, sizeof(reg_data));
2fcee4bf 5599 if (!phba->sli4_hba.PSMPHRregaddr)
da0436e9 5600 return -ENODEV;
3772a991 5601
da0436e9
JS		 5602 /* Wait up to 30 seconds for the SLI Port POST done and ready */
5603 for (i = 0; i < 3000; i++) {
9940b97b
JS		 5604 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
5605 &portsmphr_reg.word0) ||
5606 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
2fcee4bf 5607 /* Port has a fatal POST error, break out */
da0436e9
JS		 5608 port_error = -ENODEV;
5609 break;
5610 }
2fcee4bf
JS		 5611 if (LPFC_POST_STAGE_PORT_READY ==
5612 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
da0436e9 5613 break;
da0436e9 5614 msleep(10);
3772a991
JS		 5615 }
5616
2fcee4bf
JS		 5617 /*
5618 * If there was a port error during POST, then don't proceed with
5619 * other register reads as the data may not be valid. Just exit.
5620 */
5621 if (port_error) {
da0436e9 5622 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2fcee4bf
JS		 5623 "1408 Port Failed POST - portsmphr=0x%x, "
5624 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
5625 "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
5626 portsmphr_reg.word0,
5627 bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
5628 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
5629 bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
5630 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
5631 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
5632 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
5633 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
5634 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
5635 } else {
28baac74 5636 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2fcee4bf
JS		 5637 "2534 Device Info: SLIFamily=0x%x, "
5638 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
5639 "SLIHint_2=0x%x, FT=0x%x\n",
28baac74
JS		 5640 bf_get(lpfc_sli_intf_sli_family,
5641 &phba->sli4_hba.sli_intf),
5642 bf_get(lpfc_sli_intf_slirev,
5643 &phba->sli4_hba.sli_intf),
085c647c
JS		 5644 bf_get(lpfc_sli_intf_if_type,
5645 &phba->sli4_hba.sli_intf),
5646 bf_get(lpfc_sli_intf_sli_hint1,
28baac74 5647 &phba->sli4_hba.sli_intf),
085c647c
JS		 5648 bf_get(lpfc_sli_intf_sli_hint2,
5649 &phba->sli4_hba.sli_intf),
5650 bf_get(lpfc_sli_intf_func_type,
28baac74 5651 &phba->sli4_hba.sli_intf));
2fcee4bf
JS		 5652 /*
5653 * Check for other Port errors during the initialization
5654 * process. Fail the load if the port did not come up
5655 * correctly.
5656 */
5657 if_type = bf_get(lpfc_sli_intf_if_type,
5658 &phba->sli4_hba.sli_intf);
5659 switch (if_type) {
5660 case LPFC_SLI_INTF_IF_TYPE_0:
5661 phba->sli4_hba.ue_mask_lo =
5662 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
5663 phba->sli4_hba.ue_mask_hi =
5664 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
5665 uerrlo_reg.word0 =
5666 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
5667 uerrhi_reg.word0 =
5668 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
5669 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5670 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5671 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5672 "1422 Unrecoverable Error "
5673 "Detected during POST "
5674 "uerr_lo_reg=0x%x, "
5675 "uerr_hi_reg=0x%x, "
5676 "ue_mask_lo_reg=0x%x, "
5677 "ue_mask_hi_reg=0x%x\n",
5678 uerrlo_reg.word0,
5679 uerrhi_reg.word0,
5680 phba->sli4_hba.ue_mask_lo,
5681 phba->sli4_hba.ue_mask_hi);
5682 port_error = -ENODEV;
5683 }
5684 break;
5685 case LPFC_SLI_INTF_IF_TYPE_2:
5686 /* Final checks. The port status should be clean. */
9940b97b
JS		 5687 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
5688 &reg_data.word0) ||
0558056c
JS		 5689 (bf_get(lpfc_sliport_status_err, &reg_data) &&
5690 !bf_get(lpfc_sliport_status_rn, &reg_data))) {
2fcee4bf
JS		 5691 phba->work_status[0] =
5692 readl(phba->sli4_hba.u.if_type2.
5693 ERR1regaddr);
5694 phba->work_status[1] =
5695 readl(phba->sli4_hba.u.if_type2.
5696 ERR2regaddr);
5697 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5698 "2888 Port Error Detected "
5699 "during POST: "
5700 "port status reg 0x%x, "
5701 "port_smphr reg 0x%x, "
5702 "error 1=0x%x, error 2=0x%x\n",
5703 reg_data.word0,
5704 portsmphr_reg.word0,
5705 phba->work_status[0],
5706 phba->work_status[1]);
5707 port_error = -ENODEV;
5708 }
5709 break;
5710 case LPFC_SLI_INTF_IF_TYPE_1:
5711 default:
5712 break;
5713 }
28baac74 5714 }
da0436e9
JS		 5715 return port_error;
5716}
3772a991 5717
da0436e9
JS		 5718/**
5719 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5720 * @phba: pointer to lpfc hba data structure.
2fcee4bf 5721 * @if_type: The SLI4 interface type getting configured.
da0436e9
JS		 5722 *
5723 * This routine is invoked to set up SLI4 BAR0 PCI config space register
5724 * memory map.
5725 **/
5726static void
2fcee4bf
JS		 5727lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
5728{
5729 switch (if_type) {
5730 case LPFC_SLI_INTF_IF_TYPE_0:
5731 phba->sli4_hba.u.if_type0.UERRLOregaddr =
5732 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
5733 phba->sli4_hba.u.if_type0.UERRHIregaddr =
5734 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
5735 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
5736 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
5737 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
5738 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
5739 phba->sli4_hba.SLIINTFregaddr =
5740 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5741 break;
5742 case LPFC_SLI_INTF_IF_TYPE_2:
5743 phba->sli4_hba.u.if_type2.ERR1regaddr =
88a2cfbb
JS		 5744 phba->sli4_hba.conf_regs_memmap_p +
5745 LPFC_CTL_PORT_ER1_OFFSET;
2fcee4bf 5746 phba->sli4_hba.u.if_type2.ERR2regaddr =
88a2cfbb
JS		 5747 phba->sli4_hba.conf_regs_memmap_p +
5748 LPFC_CTL_PORT_ER2_OFFSET;
2fcee4bf 5749 phba->sli4_hba.u.if_type2.CTRLregaddr =
88a2cfbb
JS		 5750 phba->sli4_hba.conf_regs_memmap_p +
5751 LPFC_CTL_PORT_CTL_OFFSET;
2fcee4bf 5752 phba->sli4_hba.u.if_type2.STATUSregaddr =
88a2cfbb
JS		 5753 phba->sli4_hba.conf_regs_memmap_p +
5754 LPFC_CTL_PORT_STA_OFFSET;
2fcee4bf
JS		 5755 phba->sli4_hba.SLIINTFregaddr =
5756 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5757 phba->sli4_hba.PSMPHRregaddr =
88a2cfbb
JS		 5758 phba->sli4_hba.conf_regs_memmap_p +
5759 LPFC_CTL_PORT_SEM_OFFSET;
2fcee4bf
JS		 5760 phba->sli4_hba.RQDBregaddr =
5761 phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
5762 phba->sli4_hba.WQDBregaddr =
5763 phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
5764 phba->sli4_hba.EQCQDBregaddr =
5765 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
5766 phba->sli4_hba.MQDBregaddr =
5767 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
5768 phba->sli4_hba.BMBXregaddr =
5769 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
5770 break;
5771 case LPFC_SLI_INTF_IF_TYPE_1:
5772 default:
5773 dev_printk(KERN_ERR, &phba->pcidev->dev,
5774 "FATAL - unsupported SLI4 interface type - %d\n",
5775 if_type);
5776 break;
5777 }
da0436e9 5778}
3772a991 5779
da0436e9
JS		 5780/**
5781 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5782 * @phba: pointer to lpfc hba data structure.
5783 *
5784 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5785 * memory map.
5786 **/
5787static void
5788lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5789{
2fcee4bf
JS		 5790 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5791 LPFC_SLIPORT_IF0_SMPHR;
da0436e9 5792 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 5793 LPFC_HST_ISR0;
da0436e9 5794 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 5795 LPFC_HST_IMR0;
da0436e9 5796 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
2fcee4bf 5797 LPFC_HST_ISCR0;
3772a991
JS		 5798}
5799
5800/**
da0436e9 5801 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
3772a991 5802 * @phba: pointer to lpfc hba data structure.
da0436e9 5803 * @vf: virtual function number
3772a991 5804 *
da0436e9
JS		 5805 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5806 * based on the given viftual function number, @vf.
5807 *
5808 * Return 0 if successful, otherwise -ENODEV.
3772a991 5809 **/
da0436e9
JS		 5810static int
5811lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
3772a991 5812{
da0436e9
JS		 5813 if (vf > LPFC_VIR_FUNC_MAX)
5814 return -ENODEV;
3772a991 5815
da0436e9
JS		 5816 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5817 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5818 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5819 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5820 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5821 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5822 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5823 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5824 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5825 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5826 return 0;
3772a991
JS		 5827}
5828
5829/**
da0436e9 5830 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
3772a991
JS		 5831 * @phba: pointer to lpfc hba data structure.
5832 *
da0436e9
JS		 5833 * This routine is invoked to create the bootstrap mailbox
5834 * region consistent with the SLI-4 interface spec. This
5835 * routine allocates all memory necessary to communicate
5836 * mailbox commands to the port and sets up all alignment
5837 * needs. No locks are expected to be held when calling
5838 * this routine.
3772a991
JS		 5839 *
5840 * Return codes
af901ca1 5841 * 0 - successful
d439d286 5842 * -ENOMEM - could not allocated memory.
da0436e9 5843 **/
3772a991 5844static int
da0436e9 5845lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
3772a991 5846{
da0436e9
JS		 5847 uint32_t bmbx_size;
5848 struct lpfc_dmabuf *dmabuf;
5849 struct dma_address *dma_address;
5850 uint32_t pa_addr;
5851 uint64_t phys_addr;
5852
5853 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5854 if (!dmabuf)
5855 return -ENOMEM;
3772a991 5856
da0436e9
JS		 5857 /*
5858 * The bootstrap mailbox region is comprised of 2 parts
5859 * plus an alignment restriction of 16 bytes.
5860 */
5861 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5862 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5863 bmbx_size,
5864 &dmabuf->phys,
5865 GFP_KERNEL);
5866 if (!dmabuf->virt) {
5867 kfree(dmabuf);
5868 return -ENOMEM;
3772a991 5869 }
da0436e9 5870 memset(dmabuf->virt, 0, bmbx_size);
3772a991 5871
da0436e9
JS		 5872 /*
5873 * Initialize the bootstrap mailbox pointers now so that the register
5874 * operations are simple later. The mailbox dma address is required
5875 * to be 16-byte aligned. Also align the virtual memory as each
5876 * maibox is copied into the bmbx mailbox region before issuing the
5877 * command to the port.
5878 */
5879 phba->sli4_hba.bmbx.dmabuf = dmabuf;
5880 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
5881
5882 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
5883 LPFC_ALIGN_16_BYTE);
5884 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
5885 LPFC_ALIGN_16_BYTE);
5886
5887 /*
5888 * Set the high and low physical addresses now. The SLI4 alignment
5889 * requirement is 16 bytes and the mailbox is posted to the port
5890 * as two 30-bit addresses. The other data is a bit marking whether
5891 * the 30-bit address is the high or low address.
5892 * Upcast bmbx aphys to 64bits so shift instruction compiles
5893 * clean on 32 bit machines.
5894 */
5895 dma_address = &phba->sli4_hba.bmbx.dma_address;
5896 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
5897 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
5898 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
5899 LPFC_BMBX_BIT1_ADDR_HI);
5900
5901 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
5902 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
5903 LPFC_BMBX_BIT1_ADDR_LO);
5904 return 0;
3772a991
JS		 5905}
5906
5907/**
da0436e9 5908 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
3772a991
JS		 5909 * @phba: pointer to lpfc hba data structure.
5910 *
da0436e9
JS		 5911 * This routine is invoked to teardown the bootstrap mailbox
5912 * region and release all host resources. This routine requires
5913 * the caller to ensure all mailbox commands recovered, no
5914 * additional mailbox comands are sent, and interrupts are disabled
5915 * before calling this routine.
5916 *
5917 **/
3772a991 5918static void
da0436e9 5919lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
3772a991 5920{
da0436e9
JS		 5921 dma_free_coherent(&phba->pcidev->dev,
5922 phba->sli4_hba.bmbx.bmbx_size,
5923 phba->sli4_hba.bmbx.dmabuf->virt,
5924 phba->sli4_hba.bmbx.dmabuf->phys);
5925
5926 kfree(phba->sli4_hba.bmbx.dmabuf);
5927 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
3772a991
JS		 5928}
5929
5930/**
da0436e9 5931 * lpfc_sli4_read_config - Get the config parameters.
3772a991
JS		 5932 * @phba: pointer to lpfc hba data structure.
5933 *
da0436e9
JS		 5934 * This routine is invoked to read the configuration parameters from the HBA.
5935 * The configuration parameters are used to set the base and maximum values
5936 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5937 * allocation for the port.
3772a991
JS		 5938 *
5939 * Return codes
af901ca1 5940 * 0 - successful
25985edc 5941 * -ENOMEM - No available memory
d439d286 5942 * -EIO - The mailbox failed to complete successfully.
3772a991 5943 **/
ff78d8f9 5944int
da0436e9 5945lpfc_sli4_read_config(struct lpfc_hba *phba)
3772a991 5946{
da0436e9
JS		 5947 LPFC_MBOXQ_t *pmb;
5948 struct lpfc_mbx_read_config *rd_config;
912e3acd
JS		 5949 union lpfc_sli4_cfg_shdr *shdr;
5950 uint32_t shdr_status, shdr_add_status;
5951 struct lpfc_mbx_get_func_cfg *get_func_cfg;
5952 struct lpfc_rsrc_desc_fcfcoe *desc;
5953 uint32_t desc_count;
5954 int length, i, rc = 0;
3772a991 5955
da0436e9
JS		 5956 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5957 if (!pmb) {
5958 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5959 "2011 Unable to allocate memory for issuing "
5960 "SLI_CONFIG_SPECIAL mailbox command\n");
5961 return -ENOMEM;
3772a991
JS		 5962 }
5963
da0436e9 5964 lpfc_read_config(phba, pmb);
3772a991 5965
da0436e9
JS		 5966 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5967 if (rc != MBX_SUCCESS) {
5968 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5969 "2012 Mailbox failed , mbxCmd x%x "
5970 "READ_CONFIG, mbxStatus x%x\n",
5971 bf_get(lpfc_mqe_command, &pmb->u.mqe),
5972 bf_get(lpfc_mqe_status, &pmb->u.mqe));
5973 rc = -EIO;
5974 } else {
5975 rd_config = &pmb->u.mqe.un.rd_config;
ff78d8f9
JS		 5976 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
5977 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
5978 phba->sli4_hba.lnk_info.lnk_tp =
5979 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
5980 phba->sli4_hba.lnk_info.lnk_no =
5981 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
5982 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5983 "3081 lnk_type:%d, lnk_numb:%d\n",
5984 phba->sli4_hba.lnk_info.lnk_tp,
5985 phba->sli4_hba.lnk_info.lnk_no);
5986 } else
5987 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5988 "3082 Mailbox (x%x) returned ldv:x0\n",
5989 bf_get(lpfc_mqe_command, &pmb->u.mqe));
6d368e53
JS		 5990 phba->sli4_hba.extents_in_use =
5991 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
da0436e9
JS		 5992 phba->sli4_hba.max_cfg_param.max_xri =
5993 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
5994 phba->sli4_hba.max_cfg_param.xri_base =
5995 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
5996 phba->sli4_hba.max_cfg_param.max_vpi =
5997 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
5998 phba->sli4_hba.max_cfg_param.vpi_base =
5999 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6000 phba->sli4_hba.max_cfg_param.max_rpi =
6001 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6002 phba->sli4_hba.max_cfg_param.rpi_base =
6003 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6004 phba->sli4_hba.max_cfg_param.max_vfi =
6005 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6006 phba->sli4_hba.max_cfg_param.vfi_base =
6007 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6008 phba->sli4_hba.max_cfg_param.max_fcfi =
6009 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
da0436e9
JS		 6010 phba->sli4_hba.max_cfg_param.max_eq =
6011 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6012 phba->sli4_hba.max_cfg_param.max_rq =
6013 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6014 phba->sli4_hba.max_cfg_param.max_wq =
6015 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6016 phba->sli4_hba.max_cfg_param.max_cq =
6017 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6018 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6019 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6020 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6021 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6022 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
5ffc266e
JS		 6023 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6024 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
da0436e9
JS		 6025 phba->max_vports = phba->max_vpi;
6026 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6d368e53
JS		 6027 "2003 cfg params Extents? %d "
6028 "XRI(B:%d M:%d), "
da0436e9
JS		 6029 "VPI(B:%d M:%d) "
6030 "VFI(B:%d M:%d) "
6031 "RPI(B:%d M:%d) "
6d368e53
JS		 6032 "FCFI(Count:%d)\n",
6033 phba->sli4_hba.extents_in_use,
da0436e9
JS		 6034 phba->sli4_hba.max_cfg_param.xri_base,
6035 phba->sli4_hba.max_cfg_param.max_xri,
6036 phba->sli4_hba.max_cfg_param.vpi_base,
6037 phba->sli4_hba.max_cfg_param.max_vpi,
6038 phba->sli4_hba.max_cfg_param.vfi_base,
6039 phba->sli4_hba.max_cfg_param.max_vfi,
6040 phba->sli4_hba.max_cfg_param.rpi_base,
6041 phba->sli4_hba.max_cfg_param.max_rpi,
da0436e9 6042 phba->sli4_hba.max_cfg_param.max_fcfi);
3772a991 6043 }
912e3acd
JS		 6044
6045 if (rc)
6046 goto read_cfg_out;
da0436e9
JS		 6047
6048 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
b92938b4
JS		 6049 if (phba->cfg_hba_queue_depth >
6050 (phba->sli4_hba.max_cfg_param.max_xri -
6051 lpfc_sli4_get_els_iocb_cnt(phba)))
da0436e9 6052 phba->cfg_hba_queue_depth =
b92938b4
JS		 6053 phba->sli4_hba.max_cfg_param.max_xri -
6054 lpfc_sli4_get_els_iocb_cnt(phba);
912e3acd
JS		 6055
6056 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6057 LPFC_SLI_INTF_IF_TYPE_2)
6058 goto read_cfg_out;
6059
6060 /* get the pf# and vf# for SLI4 if_type 2 port */
6061 length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6062 sizeof(struct lpfc_sli4_cfg_mhdr));
6063 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6064 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6065 length, LPFC_SLI4_MBX_EMBED);
6066
6067 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6068 shdr = (union lpfc_sli4_cfg_shdr *)
6069 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6070 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6071 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6072 if (rc || shdr_status || shdr_add_status) {
6073 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6074 "3026 Mailbox failed , mbxCmd x%x "
6075 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6076 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6077 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6078 rc = -EIO;
6079 goto read_cfg_out;
6080 }
6081
6082 /* search for fc_fcoe resrouce descriptor */
6083 get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6084 desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6085
6086 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6087 desc = (struct lpfc_rsrc_desc_fcfcoe *)
6088 &get_func_cfg->func_cfg.desc[i];
6089 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6090 bf_get(lpfc_rsrc_desc_pcie_type, desc)) {
6091 phba->sli4_hba.iov.pf_number =
6092 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6093 phba->sli4_hba.iov.vf_number =
6094 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6095 break;
6096 }
6097 }
6098
6099 if (i < LPFC_RSRC_DESC_MAX_NUM)
6100 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6101 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6102 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6103 phba->sli4_hba.iov.vf_number);
6104 else {
6105 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6106 "3028 GET_FUNCTION_CONFIG: failed to find "
6107 "Resrouce Descriptor:x%x\n",
6108 LPFC_RSRC_DESC_TYPE_FCFCOE);
6109 rc = -EIO;
6110 }
6111
6112read_cfg_out:
6113 mempool_free(pmb, phba->mbox_mem_pool);
da0436e9 6114 return rc;
3772a991
JS		 6115}
6116
6117/**
2fcee4bf 6118 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
3772a991
JS		 6119 * @phba: pointer to lpfc hba data structure.
6120 *
2fcee4bf
JS		 6121 * This routine is invoked to setup the port-side endian order when
6122 * the port if_type is 0. This routine has no function for other
6123 * if_types.
da0436e9
JS		 6124 *
6125 * Return codes
af901ca1 6126 * 0 - successful
25985edc 6127 * -ENOMEM - No available memory
d439d286 6128 * -EIO - The mailbox failed to complete successfully.
3772a991 6129 **/
da0436e9
JS		 6130static int
6131lpfc_setup_endian_order(struct lpfc_hba *phba)
3772a991 6132{
da0436e9 6133 LPFC_MBOXQ_t *mboxq;
2fcee4bf 6134 uint32_t if_type, rc = 0;
da0436e9
JS		 6135 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6136 HOST_ENDIAN_HIGH_WORD1};
3772a991 6137
2fcee4bf
JS		 6138 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6139 switch (if_type) {
6140 case LPFC_SLI_INTF_IF_TYPE_0:
6141 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6142 GFP_KERNEL);
6143 if (!mboxq) {
6144 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6145 "0492 Unable to allocate memory for "
6146 "issuing SLI_CONFIG_SPECIAL mailbox "
6147 "command\n");
6148 return -ENOMEM;
6149 }
3772a991 6150
2fcee4bf
JS		 6151 /*
6152 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6153 * two words to contain special data values and no other data.
6154 */
6155 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6156 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6157 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6158 if (rc != MBX_SUCCESS) {
6159 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6160 "0493 SLI_CONFIG_SPECIAL mailbox "
6161 "failed with status x%x\n",
6162 rc);
6163 rc = -EIO;
6164 }
6165 mempool_free(mboxq, phba->mbox_mem_pool);
6166 break;
6167 case LPFC_SLI_INTF_IF_TYPE_2:
6168 case LPFC_SLI_INTF_IF_TYPE_1:
6169 default:
6170 break;
da0436e9 6171 }
da0436e9 6172 return rc;
3772a991
JS		 6173}
6174
6175/**
5350d872 6176 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
3772a991
JS		 6177 * @phba: pointer to lpfc hba data structure.
6178 *
5350d872
JS		 6179 * This routine is invoked to check the user settable queue counts for EQs and
6180 * CQs. after this routine is called the counts will be set to valid values that
6181 * adhere to the constraints of the system's interrupt vectors and the port's
6182 * queue resources.
da0436e9
JS		 6183 *
6184 * Return codes
af901ca1 6185 * 0 - successful
25985edc 6186 * -ENOMEM - No available memory
3772a991 6187 **/
da0436e9 6188static int
5350d872 6189lpfc_sli4_queue_verify(struct lpfc_hba *phba)
3772a991 6190{
da0436e9
JS		 6191 int cfg_fcp_wq_count;
6192 int cfg_fcp_eq_count;
3772a991 6193
da0436e9
JS		 6194 /*
6195 * Sanity check for confiugred queue parameters against the run-time
6196 * device parameters
6197 */
3772a991 6198
da0436e9
JS		 6199 /* Sanity check on FCP fast-path WQ parameters */
6200 cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
6201 if (cfg_fcp_wq_count >
6202 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
6203 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
6204 LPFC_SP_WQN_DEF;
6205 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
6206 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6207 "2581 Not enough WQs (%d) from "
6208 "the pci function for supporting "
6209 "FCP WQs (%d)\n",
6210 phba->sli4_hba.max_cfg_param.max_wq,
6211 phba->cfg_fcp_wq_count);
6212 goto out_error;
6213 }
6214 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6215 "2582 Not enough WQs (%d) from the pci "
6216 "function for supporting the requested "
6217 "FCP WQs (%d), the actual FCP WQs can "
6218 "be supported: %d\n",
6219 phba->sli4_hba.max_cfg_param.max_wq,
6220 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
6221 }
6222 /* The actual number of FCP work queues adopted */
6223 phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
6224
6225 /* Sanity check on FCP fast-path EQ parameters */
6226 cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
6227 if (cfg_fcp_eq_count >
6228 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
6229 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
6230 LPFC_SP_EQN_DEF;
6231 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
6232 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6233 "2574 Not enough EQs (%d) from the "
6234 "pci function for supporting FCP "
6235 "EQs (%d)\n",
6236 phba->sli4_hba.max_cfg_param.max_eq,
6237 phba->cfg_fcp_eq_count);
6238 goto out_error;
6239 }
6240 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6241 "2575 Not enough EQs (%d) from the pci "
6242 "function for supporting the requested "
6243 "FCP EQs (%d), the actual FCP EQs can "
6244 "be supported: %d\n",
6245 phba->sli4_hba.max_cfg_param.max_eq,
6246 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
6247 }
6248 /* It does not make sense to have more EQs than WQs */
6249 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
6250 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6a9c52cf
JS		 6251 "2593 The FCP EQ count(%d) cannot be greater "
6252 "than the FCP WQ count(%d), limiting the "
6253 "FCP EQ count to %d\n", cfg_fcp_eq_count,
da0436e9
JS		 6254 phba->cfg_fcp_wq_count,
6255 phba->cfg_fcp_wq_count);
6256 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
6257 }
6258 /* The actual number of FCP event queues adopted */
6259 phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
6260 /* The overall number of event queues used */
6261 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
3772a991 6262
da0436e9
JS		 6263 /* Get EQ depth from module parameter, fake the default for now */
6264 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6265 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
3772a991 6266
5350d872
JS		 6267 /* Get CQ depth from module parameter, fake the default for now */
6268 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6269 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6270
6271 return 0;
6272out_error:
6273 return -ENOMEM;
6274}
6275
6276/**
6277 * lpfc_sli4_queue_create - Create all the SLI4 queues
6278 * @phba: pointer to lpfc hba data structure.
6279 *
6280 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6281 * operation. For each SLI4 queue type, the parameters such as queue entry
6282 * count (queue depth) shall be taken from the module parameter. For now,
6283 * we just use some constant number as place holder.
6284 *
6285 * Return codes
6286 * 0 - sucessful
6287 * -ENOMEM - No availble memory
6288 * -EIO - The mailbox failed to complete successfully.
6289 **/
6290int
6291lpfc_sli4_queue_create(struct lpfc_hba *phba)
6292{
6293 struct lpfc_queue *qdesc;
6294 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6295
6296 /*
6297 * Create Event Queues (EQs)
6298 */
6299
da0436e9
JS		 6300 /* Create slow path event queue */
6301 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6302 phba->sli4_hba.eq_ecount);
6303 if (!qdesc) {
6304 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6305 "0496 Failed allocate slow-path EQ\n");
6306 goto out_error;
6307 }
6308 phba->sli4_hba.sp_eq = qdesc;
6309
5350d872
JS		 6310 /*
6311 * Create fast-path FCP Event Queue(s). The cfg_fcp_eq_count can be
6312 * zero whenever there is exactly one interrupt vector. This is not
6313 * an error.
6314 */
6315 if (phba->cfg_fcp_eq_count) {
6316 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
6317 phba->cfg_fcp_eq_count), GFP_KERNEL);
6318 if (!phba->sli4_hba.fp_eq) {
6319 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6320 "2576 Failed allocate memory for "
6321 "fast-path EQ record array\n");
6322 goto out_free_sp_eq;
6323 }
da0436e9
JS		 6324 }
6325 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6326 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6327 phba->sli4_hba.eq_ecount);
6328 if (!qdesc) {
6329 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6330 "0497 Failed allocate fast-path EQ\n");
6331 goto out_free_fp_eq;
6332 }
6333 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
6334 }
6335
6336 /*
6337 * Create Complete Queues (CQs)
6338 */
6339
da0436e9
JS		 6340 /* Create slow-path Mailbox Command Complete Queue */
6341 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6342 phba->sli4_hba.cq_ecount);
6343 if (!qdesc) {
6344 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6345 "0500 Failed allocate slow-path mailbox CQ\n");
6346 goto out_free_fp_eq;
6347 }
6348 phba->sli4_hba.mbx_cq = qdesc;
6349
6350 /* Create slow-path ELS Complete Queue */
6351 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6352 phba->sli4_hba.cq_ecount);
6353 if (!qdesc) {
6354 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6355 "0501 Failed allocate slow-path ELS CQ\n");
6356 goto out_free_mbx_cq;
6357 }
6358 phba->sli4_hba.els_cq = qdesc;
6359
da0436e9 6360
5350d872
JS		 6361 /*
6362 * Create fast-path FCP Completion Queue(s), one-to-one with FCP EQs.
6363 * If there are no FCP EQs then create exactly one FCP CQ.
6364 */
6365 if (phba->cfg_fcp_eq_count)
6366 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6367 phba->cfg_fcp_eq_count),
6368 GFP_KERNEL);
6369 else
6370 phba->sli4_hba.fcp_cq = kzalloc(sizeof(struct lpfc_queue *),
6371 GFP_KERNEL);
da0436e9
JS		 6372 if (!phba->sli4_hba.fcp_cq) {
6373 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6374 "2577 Failed allocate memory for fast-path "
6375 "CQ record array\n");
4d9ab994 6376 goto out_free_els_cq;
da0436e9 6377 }
5350d872
JS		 6378 fcp_cqidx = 0;
6379 do {
da0436e9
JS		 6380 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6381 phba->sli4_hba.cq_ecount);
6382 if (!qdesc) {
6383 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6384 "0499 Failed allocate fast-path FCP "
6385 "CQ (%d)\n", fcp_cqidx);
6386 goto out_free_fcp_cq;
6387 }
6388 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
5350d872 6389 } while (++fcp_cqidx < phba->cfg_fcp_eq_count);
da0436e9
JS		 6390
6391 /* Create Mailbox Command Queue */
6392 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6393 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6394
6395 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
6396 phba->sli4_hba.mq_ecount);
6397 if (!qdesc) {
6398 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6399 "0505 Failed allocate slow-path MQ\n");
6400 goto out_free_fcp_cq;
6401 }
6402 phba->sli4_hba.mbx_wq = qdesc;
6403
6404 /*
6405 * Create all the Work Queues (WQs)
6406 */
6407 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6408 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6409
6410 /* Create slow-path ELS Work Queue */
6411 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6412 phba->sli4_hba.wq_ecount);
6413 if (!qdesc) {
6414 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6415 "0504 Failed allocate slow-path ELS WQ\n");
6416 goto out_free_mbx_wq;
6417 }
6418 phba->sli4_hba.els_wq = qdesc;
6419
6420 /* Create fast-path FCP Work Queue(s) */
6421 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6422 phba->cfg_fcp_wq_count), GFP_KERNEL);
6423 if (!phba->sli4_hba.fcp_wq) {
6424 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6425 "2578 Failed allocate memory for fast-path "
6426 "WQ record array\n");
6427 goto out_free_els_wq;
6428 }
6429 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6430 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6431 phba->sli4_hba.wq_ecount);
6432 if (!qdesc) {
6433 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6434 "0503 Failed allocate fast-path FCP "
6435 "WQ (%d)\n", fcp_wqidx);
6436 goto out_free_fcp_wq;
6437 }
6438 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
6439 }
6440
6441 /*
6442 * Create Receive Queue (RQ)
6443 */
6444 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6445 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6446
6447 /* Create Receive Queue for header */
6448 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6449 phba->sli4_hba.rq_ecount);
6450 if (!qdesc) {
6451 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6452 "0506 Failed allocate receive HRQ\n");
6453 goto out_free_fcp_wq;
6454 }
6455 phba->sli4_hba.hdr_rq = qdesc;
6456
6457 /* Create Receive Queue for data */
6458 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6459 phba->sli4_hba.rq_ecount);
6460 if (!qdesc) {
6461 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6462 "0507 Failed allocate receive DRQ\n");
6463 goto out_free_hdr_rq;
6464 }
6465 phba->sli4_hba.dat_rq = qdesc;
6466
6467 return 0;
6468
6469out_free_hdr_rq:
6470 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6471 phba->sli4_hba.hdr_rq = NULL;
6472out_free_fcp_wq:
6473 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
6474 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
6475 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
6476 }
6477 kfree(phba->sli4_hba.fcp_wq);
6478out_free_els_wq:
6479 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6480 phba->sli4_hba.els_wq = NULL;
6481out_free_mbx_wq:
6482 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6483 phba->sli4_hba.mbx_wq = NULL;
6484out_free_fcp_cq:
6485 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
6486 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
6487 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
6488 }
6489 kfree(phba->sli4_hba.fcp_cq);
da0436e9
JS		 6490out_free_els_cq:
6491 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6492 phba->sli4_hba.els_cq = NULL;
6493out_free_mbx_cq:
6494 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6495 phba->sli4_hba.mbx_cq = NULL;
6496out_free_fp_eq:
6497 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
6498 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
6499 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
6500 }
6501 kfree(phba->sli4_hba.fp_eq);
6502out_free_sp_eq:
6503 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6504 phba->sli4_hba.sp_eq = NULL;
6505out_error:
6506 return -ENOMEM;
6507}
6508
6509/**
6510 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6511 * @phba: pointer to lpfc hba data structure.
6512 *
6513 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6514 * operation.
6515 *
6516 * Return codes
af901ca1 6517 * 0 - successful
25985edc 6518 * -ENOMEM - No available memory
d439d286 6519 * -EIO - The mailbox failed to complete successfully.
da0436e9 6520 **/
5350d872 6521void
da0436e9
JS		 6522lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
6523{
6524 int fcp_qidx;
6525
6526 /* Release mailbox command work queue */
6527 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6528 phba->sli4_hba.mbx_wq = NULL;
6529
6530 /* Release ELS work queue */
6531 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6532 phba->sli4_hba.els_wq = NULL;
6533
6534 /* Release FCP work queue */
6535 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6536 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
6537 kfree(phba->sli4_hba.fcp_wq);
6538 phba->sli4_hba.fcp_wq = NULL;
6539
6540 /* Release unsolicited receive queue */
6541 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6542 phba->sli4_hba.hdr_rq = NULL;
6543 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
6544 phba->sli4_hba.dat_rq = NULL;
6545
da0436e9
JS		 6546 /* Release ELS complete queue */
6547 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6548 phba->sli4_hba.els_cq = NULL;
6549
6550 /* Release mailbox command complete queue */
6551 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6552 phba->sli4_hba.mbx_cq = NULL;
6553
6554 /* Release FCP response complete queue */
0558056c
JS		 6555 fcp_qidx = 0;
6556 do
da0436e9 6557 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
0558056c 6558 while (++fcp_qidx < phba->cfg_fcp_eq_count);
da0436e9
JS		 6559 kfree(phba->sli4_hba.fcp_cq);
6560 phba->sli4_hba.fcp_cq = NULL;
6561
6562 /* Release fast-path event queue */
6563 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6564 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
6565 kfree(phba->sli4_hba.fp_eq);
6566 phba->sli4_hba.fp_eq = NULL;
6567
6568 /* Release slow-path event queue */
6569 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6570 phba->sli4_hba.sp_eq = NULL;
6571
6572 return;
6573}
6574
6575/**
6576 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
6577 * @phba: pointer to lpfc hba data structure.
6578 *
6579 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
6580 * operation.
6581 *
6582 * Return codes
af901ca1 6583 * 0 - successful
25985edc 6584 * -ENOMEM - No available memory
d439d286 6585 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 6586 **/
6587int
6588lpfc_sli4_queue_setup(struct lpfc_hba *phba)
6589{
6590 int rc = -ENOMEM;
6591 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6592 int fcp_cq_index = 0;
6593
6594 /*
6595 * Set up Event Queues (EQs)
6596 */
6597
6598 /* Set up slow-path event queue */
6599 if (!phba->sli4_hba.sp_eq) {
6600 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6601 "0520 Slow-path EQ not allocated\n");
6602 goto out_error;
6603 }
6604 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
6605 LPFC_SP_DEF_IMAX);
6606 if (rc) {
6607 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6608 "0521 Failed setup of slow-path EQ: "
6609 "rc = 0x%x\n", rc);
6610 goto out_error;
6611 }
6612 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6613 "2583 Slow-path EQ setup: queue-id=%d\n",
6614 phba->sli4_hba.sp_eq->queue_id);
6615
6616 /* Set up fast-path event queue */
6617 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6618 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
6619 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6620 "0522 Fast-path EQ (%d) not "
6621 "allocated\n", fcp_eqidx);
6622 goto out_destroy_fp_eq;
6623 }
6624 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
6625 phba->cfg_fcp_imax);
6626 if (rc) {
6627 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6628 "0523 Failed setup of fast-path EQ "
6629 "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6630 goto out_destroy_fp_eq;
6631 }
6632 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6633 "2584 Fast-path EQ setup: "
6634 "queue[%d]-id=%d\n", fcp_eqidx,
6635 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
6636 }
6637
6638 /*
6639 * Set up Complete Queues (CQs)
6640 */
6641
6642 /* Set up slow-path MBOX Complete Queue as the first CQ */
6643 if (!phba->sli4_hba.mbx_cq) {
6644 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6645 "0528 Mailbox CQ not allocated\n");
6646 goto out_destroy_fp_eq;
6647 }
6648 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
6649 LPFC_MCQ, LPFC_MBOX);
6650 if (rc) {
6651 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6652 "0529 Failed setup of slow-path mailbox CQ: "
6653 "rc = 0x%x\n", rc);
6654 goto out_destroy_fp_eq;
6655 }
6656 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6657 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6658 phba->sli4_hba.mbx_cq->queue_id,
6659 phba->sli4_hba.sp_eq->queue_id);
6660
6661 /* Set up slow-path ELS Complete Queue */
6662 if (!phba->sli4_hba.els_cq) {
6663 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6664 "0530 ELS CQ not allocated\n");
6665 goto out_destroy_mbx_cq;
6666 }
6667 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
6668 LPFC_WCQ, LPFC_ELS);
6669 if (rc) {
6670 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6671 "0531 Failed setup of slow-path ELS CQ: "
6672 "rc = 0x%x\n", rc);
6673 goto out_destroy_mbx_cq;
6674 }
6675 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6676 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6677 phba->sli4_hba.els_cq->queue_id,
6678 phba->sli4_hba.sp_eq->queue_id);
6679
da0436e9 6680 /* Set up fast-path FCP Response Complete Queue */
0558056c
JS		 6681 fcp_cqidx = 0;
6682 do {
da0436e9
JS		 6683 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6684 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6685 "0526 Fast-path FCP CQ (%d) not "
6686 "allocated\n", fcp_cqidx);
6687 goto out_destroy_fcp_cq;
6688 }
0558056c
JS		 6689 if (phba->cfg_fcp_eq_count)
6690 rc = lpfc_cq_create(phba,
6691 phba->sli4_hba.fcp_cq[fcp_cqidx],
6692 phba->sli4_hba.fp_eq[fcp_cqidx],
6693 LPFC_WCQ, LPFC_FCP);
6694 else
6695 rc = lpfc_cq_create(phba,
6696 phba->sli4_hba.fcp_cq[fcp_cqidx],
6697 phba->sli4_hba.sp_eq,
6698 LPFC_WCQ, LPFC_FCP);
da0436e9
JS		 6699 if (rc) {
6700 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6701 "0527 Failed setup of fast-path FCP "
6702 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6703 goto out_destroy_fcp_cq;
6704 }
6705 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6706 "2588 FCP CQ setup: cq[%d]-id=%d, "
0558056c 6707 "parent %seq[%d]-id=%d\n",
da0436e9
JS		 6708 fcp_cqidx,
6709 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
0558056c 6710 (phba->cfg_fcp_eq_count) ? "" : "sp_",
da0436e9 6711 fcp_cqidx,
0558056c
JS		 6712 (phba->cfg_fcp_eq_count) ?
6713 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id :
6714 phba->sli4_hba.sp_eq->queue_id);
6715 } while (++fcp_cqidx < phba->cfg_fcp_eq_count);
da0436e9
JS		 6716
6717 /*
6718 * Set up all the Work Queues (WQs)
6719 */
6720
6721 /* Set up Mailbox Command Queue */
6722 if (!phba->sli4_hba.mbx_wq) {
6723 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6724 "0538 Slow-path MQ not allocated\n");
6725 goto out_destroy_fcp_cq;
6726 }
6727 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
6728 phba->sli4_hba.mbx_cq, LPFC_MBOX);
6729 if (rc) {
6730 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6731 "0539 Failed setup of slow-path MQ: "
6732 "rc = 0x%x\n", rc);
6733 goto out_destroy_fcp_cq;
6734 }
6735 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6736 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6737 phba->sli4_hba.mbx_wq->queue_id,
6738 phba->sli4_hba.mbx_cq->queue_id);
6739
6740 /* Set up slow-path ELS Work Queue */
6741 if (!phba->sli4_hba.els_wq) {
6742 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6743 "0536 Slow-path ELS WQ not allocated\n");
6744 goto out_destroy_mbx_wq;
6745 }
6746 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
6747 phba->sli4_hba.els_cq, LPFC_ELS);
6748 if (rc) {
6749 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6750 "0537 Failed setup of slow-path ELS WQ: "
6751 "rc = 0x%x\n", rc);
6752 goto out_destroy_mbx_wq;
6753 }
6754 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6755 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6756 phba->sli4_hba.els_wq->queue_id,
6757 phba->sli4_hba.els_cq->queue_id);
6758
6759 /* Set up fast-path FCP Work Queue */
6760 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6761 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
6762 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6763 "0534 Fast-path FCP WQ (%d) not "
6764 "allocated\n", fcp_wqidx);
6765 goto out_destroy_fcp_wq;
6766 }
6767 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
6768 phba->sli4_hba.fcp_cq[fcp_cq_index],
6769 LPFC_FCP);
6770 if (rc) {
6771 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6772 "0535 Failed setup of fast-path FCP "
6773 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
6774 goto out_destroy_fcp_wq;
6775 }
6776 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6777 "2591 FCP WQ setup: wq[%d]-id=%d, "
6778 "parent cq[%d]-id=%d\n",
6779 fcp_wqidx,
6780 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
6781 fcp_cq_index,
6782 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
6783 /* Round robin FCP Work Queue's Completion Queue assignment */
0558056c
JS		 6784 if (phba->cfg_fcp_eq_count)
6785 fcp_cq_index = ((fcp_cq_index + 1) %
6786 phba->cfg_fcp_eq_count);
da0436e9
JS		 6787 }
6788
6789 /*
6790 * Create Receive Queue (RQ)
6791 */
6792 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
6793 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6794 "0540 Receive Queue not allocated\n");
6795 goto out_destroy_fcp_wq;
6796 }
73d91e50
JS		 6797
6798 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
6799 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
6800
da0436e9 6801 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
4d9ab994 6802 phba->sli4_hba.els_cq, LPFC_USOL);
da0436e9
JS		 6803 if (rc) {
6804 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6805 "0541 Failed setup of Receive Queue: "
6806 "rc = 0x%x\n", rc);
6807 goto out_destroy_fcp_wq;
6808 }
73d91e50 6809
da0436e9
JS		 6810 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6811 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6812 "parent cq-id=%d\n",
6813 phba->sli4_hba.hdr_rq->queue_id,
6814 phba->sli4_hba.dat_rq->queue_id,
4d9ab994 6815 phba->sli4_hba.els_cq->queue_id);
da0436e9
JS		 6816 return 0;
6817
6818out_destroy_fcp_wq:
6819 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
6820 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6821 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6822out_destroy_mbx_wq:
6823 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6824out_destroy_fcp_cq:
6825 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
6826 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
da0436e9
JS		 6827 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6828out_destroy_mbx_cq:
6829 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6830out_destroy_fp_eq:
6831 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
6832 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6833 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6834out_error:
6835 return rc;
6836}
6837
6838/**
6839 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6840 * @phba: pointer to lpfc hba data structure.
6841 *
6842 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6843 * operation.
6844 *
6845 * Return codes
af901ca1 6846 * 0 - successful
25985edc 6847 * -ENOMEM - No available memory
d439d286 6848 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 6849 **/
6850void
6851lpfc_sli4_queue_unset(struct lpfc_hba *phba)
6852{
6853 int fcp_qidx;
6854
6855 /* Unset mailbox command work queue */
6856 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6857 /* Unset ELS work queue */
6858 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6859 /* Unset unsolicited receive queue */
6860 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
6861 /* Unset FCP work queue */
6862 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6863 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
6864 /* Unset mailbox command complete queue */
6865 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6866 /* Unset ELS complete queue */
6867 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
da0436e9 6868 /* Unset FCP response complete queue */
5350d872
JS		 6869 fcp_qidx = 0;
6870 do {
da0436e9 6871 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
5350d872 6872 } while (++fcp_qidx < phba->cfg_fcp_eq_count);
da0436e9
JS		 6873 /* Unset fast-path event queue */
6874 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6875 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
6876 /* Unset slow-path event queue */
6877 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6878}
6879
6880/**
6881 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6882 * @phba: pointer to lpfc hba data structure.
6883 *
6884 * This routine is invoked to allocate and set up a pool of completion queue
6885 * events. The body of the completion queue event is a completion queue entry
6886 * CQE. For now, this pool is used for the interrupt service routine to queue
6887 * the following HBA completion queue events for the worker thread to process:
6888 * - Mailbox asynchronous events
6889 * - Receive queue completion unsolicited events
6890 * Later, this can be used for all the slow-path events.
6891 *
6892 * Return codes
af901ca1 6893 * 0 - successful
25985edc 6894 * -ENOMEM - No available memory
da0436e9
JS		 6895 **/
6896static int
6897lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
6898{
6899 struct lpfc_cq_event *cq_event;
6900 int i;
6901
6902 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
6903 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
6904 if (!cq_event)
6905 goto out_pool_create_fail;
6906 list_add_tail(&cq_event->list,
6907 &phba->sli4_hba.sp_cqe_event_pool);
6908 }
6909 return 0;
6910
6911out_pool_create_fail:
6912 lpfc_sli4_cq_event_pool_destroy(phba);
6913 return -ENOMEM;
6914}
6915
6916/**
6917 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6918 * @phba: pointer to lpfc hba data structure.
6919 *
6920 * This routine is invoked to free the pool of completion queue events at
6921 * driver unload time. Note that, it is the responsibility of the driver
6922 * cleanup routine to free all the outstanding completion-queue events
6923 * allocated from this pool back into the pool before invoking this routine
6924 * to destroy the pool.
6925 **/
6926static void
6927lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
6928{
6929 struct lpfc_cq_event *cq_event, *next_cq_event;
6930
6931 list_for_each_entry_safe(cq_event, next_cq_event,
6932 &phba->sli4_hba.sp_cqe_event_pool, list) {
6933 list_del(&cq_event->list);
6934 kfree(cq_event);
6935 }
6936}
6937
6938/**
6939 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6940 * @phba: pointer to lpfc hba data structure.
6941 *
6942 * This routine is the lock free version of the API invoked to allocate a
6943 * completion-queue event from the free pool.
6944 *
6945 * Return: Pointer to the newly allocated completion-queue event if successful
6946 * NULL otherwise.
6947 **/
6948struct lpfc_cq_event *
6949__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6950{
6951 struct lpfc_cq_event *cq_event = NULL;
6952
6953 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
6954 struct lpfc_cq_event, list);
6955 return cq_event;
6956}
6957
6958/**
6959 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6960 * @phba: pointer to lpfc hba data structure.
6961 *
6962 * This routine is the lock version of the API invoked to allocate a
6963 * completion-queue event from the free pool.
6964 *
6965 * Return: Pointer to the newly allocated completion-queue event if successful
6966 * NULL otherwise.
6967 **/
6968struct lpfc_cq_event *
6969lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6970{
6971 struct lpfc_cq_event *cq_event;
6972 unsigned long iflags;
6973
6974 spin_lock_irqsave(&phba->hbalock, iflags);
6975 cq_event = __lpfc_sli4_cq_event_alloc(phba);
6976 spin_unlock_irqrestore(&phba->hbalock, iflags);
6977 return cq_event;
6978}
6979
6980/**
6981 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6982 * @phba: pointer to lpfc hba data structure.
6983 * @cq_event: pointer to the completion queue event to be freed.
6984 *
6985 * This routine is the lock free version of the API invoked to release a
6986 * completion-queue event back into the free pool.
6987 **/
6988void
6989__lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6990 struct lpfc_cq_event *cq_event)
6991{
6992 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
6993}
6994
6995/**
6996 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6997 * @phba: pointer to lpfc hba data structure.
6998 * @cq_event: pointer to the completion queue event to be freed.
6999 *
7000 * This routine is the lock version of the API invoked to release a
7001 * completion-queue event back into the free pool.
7002 **/
7003void
7004lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7005 struct lpfc_cq_event *cq_event)
7006{
7007 unsigned long iflags;
7008 spin_lock_irqsave(&phba->hbalock, iflags);
7009 __lpfc_sli4_cq_event_release(phba, cq_event);
7010 spin_unlock_irqrestore(&phba->hbalock, iflags);
7011}
7012
7013/**
7014 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7015 * @phba: pointer to lpfc hba data structure.
7016 *
7017 * This routine is to free all the pending completion-queue events to the
7018 * back into the free pool for device reset.
7019 **/
7020static void
7021lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7022{
7023 LIST_HEAD(cqelist);
7024 struct lpfc_cq_event *cqe;
7025 unsigned long iflags;
7026
7027 /* Retrieve all the pending WCQEs from pending WCQE lists */
7028 spin_lock_irqsave(&phba->hbalock, iflags);
7029 /* Pending FCP XRI abort events */
7030 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
7031 &cqelist);
7032 /* Pending ELS XRI abort events */
7033 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
7034 &cqelist);
7035 /* Pending asynnc events */
7036 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
7037 &cqelist);
7038 spin_unlock_irqrestore(&phba->hbalock, iflags);
7039
7040 while (!list_empty(&cqelist)) {
7041 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
7042 lpfc_sli4_cq_event_release(phba, cqe);
7043 }
7044}
7045
7046/**
7047 * lpfc_pci_function_reset - Reset pci function.
7048 * @phba: pointer to lpfc hba data structure.
7049 *
7050 * This routine is invoked to request a PCI function reset. It will destroys
7051 * all resources assigned to the PCI function which originates this request.
7052 *
7053 * Return codes
af901ca1 7054 * 0 - successful
25985edc 7055 * -ENOMEM - No available memory
d439d286 7056 * -EIO - The mailbox failed to complete successfully.
da0436e9
JS		 7057 **/
7058int
7059lpfc_pci_function_reset(struct lpfc_hba *phba)
7060{
7061 LPFC_MBOXQ_t *mboxq;
2fcee4bf 7062 uint32_t rc = 0, if_type;
da0436e9 7063 uint32_t shdr_status, shdr_add_status;
2fcee4bf 7064 uint32_t rdy_chk, num_resets = 0, reset_again = 0;
da0436e9 7065 union lpfc_sli4_cfg_shdr *shdr;
2fcee4bf 7066 struct lpfc_register reg_data;
da0436e9 7067
2fcee4bf
JS		 7068 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7069 switch (if_type) {
7070 case LPFC_SLI_INTF_IF_TYPE_0:
7071 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7072 GFP_KERNEL);
7073 if (!mboxq) {
7074 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7075 "0494 Unable to allocate memory for "
7076 "issuing SLI_FUNCTION_RESET mailbox "
7077 "command\n");
7078 return -ENOMEM;
7079 }
da0436e9 7080
2fcee4bf
JS		 7081 /* Setup PCI function reset mailbox-ioctl command */
7082 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7083 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
7084 LPFC_SLI4_MBX_EMBED);
7085 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7086 shdr = (union lpfc_sli4_cfg_shdr *)
7087 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7088 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7089 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7090 &shdr->response);
7091 if (rc != MBX_TIMEOUT)
7092 mempool_free(mboxq, phba->mbox_mem_pool);
7093 if (shdr_status || shdr_add_status || rc) {
7094 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7095 "0495 SLI_FUNCTION_RESET mailbox "
7096 "failed with status x%x add_status x%x,"
7097 " mbx status x%x\n",
7098 shdr_status, shdr_add_status, rc);
7099 rc = -ENXIO;
7100 }
7101 break;
7102 case LPFC_SLI_INTF_IF_TYPE_2:
7103 for (num_resets = 0;
7104 num_resets < MAX_IF_TYPE_2_RESETS;
7105 num_resets++) {
7106 reg_data.word0 = 0;
7107 bf_set(lpfc_sliport_ctrl_end, &reg_data,
7108 LPFC_SLIPORT_LITTLE_ENDIAN);
7109 bf_set(lpfc_sliport_ctrl_ip, &reg_data,
7110 LPFC_SLIPORT_INIT_PORT);
7111 writel(reg_data.word0, phba->sli4_hba.u.if_type2.
7112 CTRLregaddr);
7113
7114 /*
7115 * Poll the Port Status Register and wait for RDY for
7116 * up to 10 seconds. If the port doesn't respond, treat
7117 * it as an error. If the port responds with RN, start
7118 * the loop again.
7119 */
7120 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
73d91e50 7121 msleep(10);
9940b97b
JS		 7122 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7123 STATUSregaddr, &reg_data.word0)) {
7124 rc = -ENODEV;
73d91e50 7125 goto out;
9940b97b 7126 }
2fcee4bf
JS		 7127 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
7128 break;
7129 if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
7130 reset_again++;
7131 break;
7132 }
2fcee4bf
JS		 7133 }
7134
7135 /*
7136 * If the port responds to the init request with
7137 * reset needed, delay for a bit and restart the loop.
7138 */
7139 if (reset_again) {
7140 msleep(10);
7141 reset_again = 0;
7142 continue;
7143 }
7144
7145 /* Detect any port errors. */
2fcee4bf
JS		 7146 if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
7147 (rdy_chk >= 1000)) {
7148 phba->work_status[0] = readl(
7149 phba->sli4_hba.u.if_type2.ERR1regaddr);
7150 phba->work_status[1] = readl(
7151 phba->sli4_hba.u.if_type2.ERR2regaddr);
7152 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7153 "2890 Port Error Detected "
7154 "during Port Reset: "
7155 "port status reg 0x%x, "
7156 "error 1=0x%x, error 2=0x%x\n",
7157 reg_data.word0,
7158 phba->work_status[0],
7159 phba->work_status[1]);
7160 rc = -ENODEV;
7161 }
7162
7163 /*
7164 * Terminate the outer loop provided the Port indicated
7165 * ready within 10 seconds.
7166 */
7167 if (rdy_chk < 1000)
7168 break;
7169 }
0558056c
JS		 7170 /* delay driver action following IF_TYPE_2 function reset */
7171 msleep(100);
2fcee4bf
JS		 7172 break;
7173 case LPFC_SLI_INTF_IF_TYPE_1:
7174 default:
7175 break;
da0436e9 7176 }
2fcee4bf 7177
73d91e50 7178out:
2fcee4bf
JS		 7179 /* Catch the not-ready port failure after a port reset. */
7180 if (num_resets >= MAX_IF_TYPE_2_RESETS)
7181 rc = -ENODEV;
7182
da0436e9
JS		 7183 return rc;
7184}
7185
7186/**
7187 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
7188 * @phba: pointer to lpfc hba data structure.
7189 * @cnt: number of nop mailbox commands to send.
7190 *
7191 * This routine is invoked to send a number @cnt of NOP mailbox command and
7192 * wait for each command to complete.
7193 *
7194 * Return: the number of NOP mailbox command completed.
7195 **/
7196static int
7197lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
7198{
7199 LPFC_MBOXQ_t *mboxq;
7200 int length, cmdsent;
7201 uint32_t mbox_tmo;
7202 uint32_t rc = 0;
7203 uint32_t shdr_status, shdr_add_status;
7204 union lpfc_sli4_cfg_shdr *shdr;
7205
7206 if (cnt == 0) {
7207 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7208 "2518 Requested to send 0 NOP mailbox cmd\n");
7209 return cnt;
7210 }
7211
7212 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7213 if (!mboxq) {
7214 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7215 "2519 Unable to allocate memory for issuing "
7216 "NOP mailbox command\n");
7217 return 0;
7218 }
7219
7220 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
7221 length = (sizeof(struct lpfc_mbx_nop) -
7222 sizeof(struct lpfc_sli4_cfg_mhdr));
7223 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7224 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
7225
da0436e9
JS		 7226 for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
7227 if (!phba->sli4_hba.intr_enable)
7228 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
a183a15f
JS		 7229 else {
7230 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
da0436e9 7231 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
a183a15f 7232 }
da0436e9
JS		 7233 if (rc == MBX_TIMEOUT)
7234 break;
7235 /* Check return status */
7236 shdr = (union lpfc_sli4_cfg_shdr *)
7237 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7238 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7239 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7240 &shdr->response);
7241 if (shdr_status || shdr_add_status || rc) {
7242 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7243 "2520 NOP mailbox command failed "
7244 "status x%x add_status x%x mbx "
7245 "status x%x\n", shdr_status,
7246 shdr_add_status, rc);
7247 break;
7248 }
7249 }
7250
7251 if (rc != MBX_TIMEOUT)
7252 mempool_free(mboxq, phba->mbox_mem_pool);
7253
7254 return cmdsent;
7255}
7256
da0436e9
JS		 7257/**
7258 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7259 * @phba: pointer to lpfc hba data structure.
7260 *
7261 * This routine is invoked to set up the PCI device memory space for device
7262 * with SLI-4 interface spec.
7263 *
7264 * Return codes
af901ca1 7265 * 0 - successful
da0436e9
JS		 7266 * other values - error
7267 **/
7268static int
7269lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
7270{
7271 struct pci_dev *pdev;
7272 unsigned long bar0map_len, bar1map_len, bar2map_len;
7273 int error = -ENODEV;
2fcee4bf 7274 uint32_t if_type;
da0436e9
JS		 7275
7276 /* Obtain PCI device reference */
7277 if (!phba->pcidev)
7278 return error;
7279 else
7280 pdev = phba->pcidev;
7281
7282 /* Set the device DMA mask size */
8e68597d
MR		 7283 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7284 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7285 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7286 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
da0436e9 7287 return error;
8e68597d
MR		 7288 }
7289 }
da0436e9 7290
2fcee4bf
JS		 7291 /*
7292 * The BARs and register set definitions and offset locations are
7293 * dependent on the if_type.
7294 */
7295 if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7296 &phba->sli4_hba.sli_intf.word0)) {
7297 return error;
7298 }
7299
7300 /* There is no SLI3 failback for SLI4 devices. */
7301 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7302 LPFC_SLI_INTF_VALID) {
7303 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7304 "2894 SLI_INTF reg contents invalid "
7305 "sli_intf reg 0x%x\n",
7306 phba->sli4_hba.sli_intf.word0);
7307 return error;
7308 }
7309
7310 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7311 /*
7312 * Get the bus address of SLI4 device Bar regions and the
7313 * number of bytes required by each mapping. The mapping of the
7314 * particular PCI BARs regions is dependent on the type of
7315 * SLI4 device.
da0436e9 7316 */
1dfb5a47
JS		 7317 if (pci_resource_start(pdev, 0)) {
7318 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7319 bar0map_len = pci_resource_len(pdev, 0);
2fcee4bf
JS		 7320
7321 /*
7322 * Map SLI4 PCI Config Space Register base to a kernel virtual
7323 * addr
7324 */
7325 phba->sli4_hba.conf_regs_memmap_p =
7326 ioremap(phba->pci_bar0_map, bar0map_len);
7327 if (!phba->sli4_hba.conf_regs_memmap_p) {
7328 dev_printk(KERN_ERR, &pdev->dev,
7329 "ioremap failed for SLI4 PCI config "
7330 "registers.\n");
7331 goto out;
7332 }
7333 /* Set up BAR0 PCI config space register memory map */
7334 lpfc_sli4_bar0_register_memmap(phba, if_type);
1dfb5a47
JS		 7335 } else {
7336 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7337 bar0map_len = pci_resource_len(pdev, 1);
2fcee4bf
JS		 7338 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7339 dev_printk(KERN_ERR, &pdev->dev,
7340 "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7341 goto out;
7342 }
7343 phba->sli4_hba.conf_regs_memmap_p =
da0436e9 7344 ioremap(phba->pci_bar0_map, bar0map_len);
2fcee4bf
JS		 7345 if (!phba->sli4_hba.conf_regs_memmap_p) {
7346 dev_printk(KERN_ERR, &pdev->dev,
7347 "ioremap failed for SLI4 PCI config "
7348 "registers.\n");
7349 goto out;
7350 }
7351 lpfc_sli4_bar0_register_memmap(phba, if_type);
da0436e9
JS		 7352 }
7353
c31098ce
JS		 7354 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7355 (pci_resource_start(pdev, 2))) {
2fcee4bf
JS		 7356 /*
7357 * Map SLI4 if type 0 HBA Control Register base to a kernel
7358 * virtual address and setup the registers.
7359 */
7360 phba->pci_bar1_map = pci_resource_start(pdev, 2);
7361 bar1map_len = pci_resource_len(pdev, 2);
7362 phba->sli4_hba.ctrl_regs_memmap_p =
da0436e9 7363 ioremap(phba->pci_bar1_map, bar1map_len);
2fcee4bf
JS		 7364 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7365 dev_printk(KERN_ERR, &pdev->dev,
da0436e9 7366 "ioremap failed for SLI4 HBA control registers.\n");
2fcee4bf
JS		 7367 goto out_iounmap_conf;
7368 }
7369 lpfc_sli4_bar1_register_memmap(phba);
da0436e9
JS		 7370 }
7371
c31098ce
JS		 7372 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7373 (pci_resource_start(pdev, 4))) {
2fcee4bf
JS		 7374 /*
7375 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7376 * virtual address and setup the registers.
7377 */
7378 phba->pci_bar2_map = pci_resource_start(pdev, 4);
7379 bar2map_len = pci_resource_len(pdev, 4);
7380 phba->sli4_hba.drbl_regs_memmap_p =
da0436e9 7381 ioremap(phba->pci_bar2_map, bar2map_len);
2fcee4bf
JS		 7382 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7383 dev_printk(KERN_ERR, &pdev->dev,
da0436e9 7384 "ioremap failed for SLI4 HBA doorbell registers.\n");
2fcee4bf
JS		 7385 goto out_iounmap_ctrl;
7386 }
7387 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7388 if (error)
7389 goto out_iounmap_all;
da0436e9
JS		 7390 }
7391
da0436e9
JS		 7392 return 0;
7393
7394out_iounmap_all:
7395 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7396out_iounmap_ctrl:
7397 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7398out_iounmap_conf:
7399 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7400out:
7401 return error;
7402}
7403
7404/**
7405 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7406 * @phba: pointer to lpfc hba data structure.
7407 *
7408 * This routine is invoked to unset the PCI device memory space for device
7409 * with SLI-4 interface spec.
7410 **/
7411static void
7412lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
7413{
7414 struct pci_dev *pdev;
7415
7416 /* Obtain PCI device reference */
7417 if (!phba->pcidev)
7418 return;
7419 else
7420 pdev = phba->pcidev;
7421
7422 /* Free coherent DMA memory allocated */
7423
7424 /* Unmap I/O memory space */
7425 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7426 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7427 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7428
7429 return;
7430}
7431
7432/**
7433 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7434 * @phba: pointer to lpfc hba data structure.
7435 *
7436 * This routine is invoked to enable the MSI-X interrupt vectors to device
7437 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7438 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7439 * invoked, enables either all or nothing, depending on the current
7440 * availability of PCI vector resources. The device driver is responsible
7441 * for calling the individual request_irq() to register each MSI-X vector
7442 * with a interrupt handler, which is done in this function. Note that
7443 * later when device is unloading, the driver should always call free_irq()
7444 * on all MSI-X vectors it has done request_irq() on before calling
7445 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7446 * will be left with MSI-X enabled and leaks its vectors.
7447 *
7448 * Return codes
af901ca1 7449 * 0 - successful
da0436e9
JS		 7450 * other values - error
7451 **/
7452static int
7453lpfc_sli_enable_msix(struct lpfc_hba *phba)
7454{
7455 int rc, i;
7456 LPFC_MBOXQ_t *pmb;
7457
7458 /* Set up MSI-X multi-message vectors */
7459 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7460 phba->msix_entries[i].entry = i;
7461
7462 /* Configure MSI-X capability structure */
7463 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
7464 ARRAY_SIZE(phba->msix_entries));
7465 if (rc) {
7466 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7467 "0420 PCI enable MSI-X failed (%d)\n", rc);
7468 goto msi_fail_out;
7469 }
7470 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7471 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7472 "0477 MSI-X entry[%d]: vector=x%x "
7473 "message=%d\n", i,
7474 phba->msix_entries[i].vector,
7475 phba->msix_entries[i].entry);
7476 /*
7477 * Assign MSI-X vectors to interrupt handlers
7478 */
7479
7480 /* vector-0 is associated to slow-path handler */
7481 rc = request_irq(phba->msix_entries[0].vector,
7482 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
7483 LPFC_SP_DRIVER_HANDLER_NAME, phba);
7484 if (rc) {
7485 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7486 "0421 MSI-X slow-path request_irq failed "
7487 "(%d)\n", rc);
7488 goto msi_fail_out;
7489 }
7490
7491 /* vector-1 is associated to fast-path handler */
7492 rc = request_irq(phba->msix_entries[1].vector,
7493 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
7494 LPFC_FP_DRIVER_HANDLER_NAME, phba);
7495
7496 if (rc) {
7497 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7498 "0429 MSI-X fast-path request_irq failed "
7499 "(%d)\n", rc);
7500 goto irq_fail_out;
7501 }
7502
7503 /*
7504 * Configure HBA MSI-X attention conditions to messages
7505 */
7506 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7507
7508 if (!pmb) {
7509 rc = -ENOMEM;
7510 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7511 "0474 Unable to allocate memory for issuing "
7512 "MBOX_CONFIG_MSI command\n");
7513 goto mem_fail_out;
7514 }
7515 rc = lpfc_config_msi(phba, pmb);
7516 if (rc)
7517 goto mbx_fail_out;
7518 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7519 if (rc != MBX_SUCCESS) {
7520 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
7521 "0351 Config MSI mailbox command failed, "
7522 "mbxCmd x%x, mbxStatus x%x\n",
7523 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
7524 goto mbx_fail_out;
7525 }
7526
7527 /* Free memory allocated for mailbox command */
7528 mempool_free(pmb, phba->mbox_mem_pool);
7529 return rc;
7530
7531mbx_fail_out:
7532 /* Free memory allocated for mailbox command */
7533 mempool_free(pmb, phba->mbox_mem_pool);
7534
7535mem_fail_out:
7536 /* free the irq already requested */
7537 free_irq(phba->msix_entries[1].vector, phba);
7538
7539irq_fail_out:
7540 /* free the irq already requested */
7541 free_irq(phba->msix_entries[0].vector, phba);
7542
7543msi_fail_out:
7544 /* Unconfigure MSI-X capability structure */
7545 pci_disable_msix(phba->pcidev);
7546 return rc;
7547}
7548
7549/**
7550 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
7551 * @phba: pointer to lpfc hba data structure.
7552 *
7553 * This routine is invoked to release the MSI-X vectors and then disable the
7554 * MSI-X interrupt mode to device with SLI-3 interface spec.
7555 **/
7556static void
7557lpfc_sli_disable_msix(struct lpfc_hba *phba)
7558{
7559 int i;
7560
7561 /* Free up MSI-X multi-message vectors */
7562 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7563 free_irq(phba->msix_entries[i].vector, phba);
7564 /* Disable MSI-X */
7565 pci_disable_msix(phba->pcidev);
7566
7567 return;
7568}
7569
7570/**
7571 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
7572 * @phba: pointer to lpfc hba data structure.
7573 *
7574 * This routine is invoked to enable the MSI interrupt mode to device with
7575 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
7576 * enable the MSI vector. The device driver is responsible for calling the
7577 * request_irq() to register MSI vector with a interrupt the handler, which
7578 * is done in this function.
7579 *
7580 * Return codes
af901ca1 7581 * 0 - successful
da0436e9
JS		 7582 * other values - error
7583 */
7584static int
7585lpfc_sli_enable_msi(struct lpfc_hba *phba)
7586{
7587 int rc;
7588
7589 rc = pci_enable_msi(phba->pcidev);
7590 if (!rc)
7591 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7592 "0462 PCI enable MSI mode success.\n");
7593 else {
7594 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7595 "0471 PCI enable MSI mode failed (%d)\n", rc);
7596 return rc;
7597 }
7598
7599 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7600 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7601 if (rc) {
7602 pci_disable_msi(phba->pcidev);
7603 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7604 "0478 MSI request_irq failed (%d)\n", rc);
7605 }
7606 return rc;
7607}
7608
7609/**
7610 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
7611 * @phba: pointer to lpfc hba data structure.
7612 *
7613 * This routine is invoked to disable the MSI interrupt mode to device with
7614 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
7615 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7616 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7617 * its vector.
7618 */
7619static void
7620lpfc_sli_disable_msi(struct lpfc_hba *phba)
7621{
7622 free_irq(phba->pcidev->irq, phba);
7623 pci_disable_msi(phba->pcidev);
7624 return;
7625}
7626
7627/**
7628 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
7629 * @phba: pointer to lpfc hba data structure.
7630 *
7631 * This routine is invoked to enable device interrupt and associate driver's
7632 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
7633 * spec. Depends on the interrupt mode configured to the driver, the driver
7634 * will try to fallback from the configured interrupt mode to an interrupt
7635 * mode which is supported by the platform, kernel, and device in the order
7636 * of:
7637 * MSI-X -> MSI -> IRQ.
7638 *
7639 * Return codes
af901ca1 7640 * 0 - successful
da0436e9
JS		 7641 * other values - error
7642 **/
7643static uint32_t
7644lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7645{
7646 uint32_t intr_mode = LPFC_INTR_ERROR;
7647 int retval;
7648
7649 if (cfg_mode == 2) {
7650 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
7651 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
7652 if (!retval) {
7653 /* Now, try to enable MSI-X interrupt mode */
7654 retval = lpfc_sli_enable_msix(phba);
7655 if (!retval) {
7656 /* Indicate initialization to MSI-X mode */
7657 phba->intr_type = MSIX;
7658 intr_mode = 2;
7659 }
7660 }
7661 }
7662
7663 /* Fallback to MSI if MSI-X initialization failed */
7664 if (cfg_mode >= 1 && phba->intr_type == NONE) {
7665 retval = lpfc_sli_enable_msi(phba);
7666 if (!retval) {
7667 /* Indicate initialization to MSI mode */
7668 phba->intr_type = MSI;
7669 intr_mode = 1;
7670 }
7671 }
7672
7673 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7674 if (phba->intr_type == NONE) {
7675 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7676 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7677 if (!retval) {
7678 /* Indicate initialization to INTx mode */
7679 phba->intr_type = INTx;
7680 intr_mode = 0;
7681 }
7682 }
7683 return intr_mode;
7684}
7685
7686/**
7687 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
7688 * @phba: pointer to lpfc hba data structure.
7689 *
7690 * This routine is invoked to disable device interrupt and disassociate the
7691 * driver's interrupt handler(s) from interrupt vector(s) to device with
7692 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
7693 * release the interrupt vector(s) for the message signaled interrupt.
7694 **/
7695static void
7696lpfc_sli_disable_intr(struct lpfc_hba *phba)
7697{
7698 /* Disable the currently initialized interrupt mode */
7699 if (phba->intr_type == MSIX)
7700 lpfc_sli_disable_msix(phba);
7701 else if (phba->intr_type == MSI)
7702 lpfc_sli_disable_msi(phba);
7703 else if (phba->intr_type == INTx)
7704 free_irq(phba->pcidev->irq, phba);
7705
7706 /* Reset interrupt management states */
7707 phba->intr_type = NONE;
7708 phba->sli.slistat.sli_intr = 0;
7709
7710 return;
7711}
7712
7713/**
7714 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
7715 * @phba: pointer to lpfc hba data structure.
7716 *
7717 * This routine is invoked to enable the MSI-X interrupt vectors to device
7718 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
7719 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
7720 * enables either all or nothing, depending on the current availability of
7721 * PCI vector resources. The device driver is responsible for calling the
7722 * individual request_irq() to register each MSI-X vector with a interrupt
7723 * handler, which is done in this function. Note that later when device is
7724 * unloading, the driver should always call free_irq() on all MSI-X vectors
7725 * it has done request_irq() on before calling pci_disable_msix(). Failure
7726 * to do so results in a BUG_ON() and a device will be left with MSI-X
7727 * enabled and leaks its vectors.
7728 *
7729 * Return codes
af901ca1 7730 * 0 - successful
da0436e9
JS		 7731 * other values - error
7732 **/
7733static int
7734lpfc_sli4_enable_msix(struct lpfc_hba *phba)
7735{
75baf696 7736 int vectors, rc, index;
da0436e9
JS		 7737
7738 /* Set up MSI-X multi-message vectors */
7739 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
7740 phba->sli4_hba.msix_entries[index].entry = index;
7741
7742 /* Configure MSI-X capability structure */
75baf696
JS		 7743 vectors = phba->sli4_hba.cfg_eqn;
7744enable_msix_vectors:
da0436e9 7745 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
75baf696
JS		 7746 vectors);
7747 if (rc > 1) {
7748 vectors = rc;
7749 goto enable_msix_vectors;
7750 } else if (rc) {
da0436e9
JS		 7751 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7752 "0484 PCI enable MSI-X failed (%d)\n", rc);
7753 goto msi_fail_out;
7754 }
75baf696 7755
da0436e9 7756 /* Log MSI-X vector assignment */
75baf696 7757 for (index = 0; index < vectors; index++)
da0436e9
JS		 7758 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7759 "0489 MSI-X entry[%d]: vector=x%x "
7760 "message=%d\n", index,
7761 phba->sli4_hba.msix_entries[index].vector,
7762 phba->sli4_hba.msix_entries[index].entry);
7763 /*
7764 * Assign MSI-X vectors to interrupt handlers
7765 */
0558056c
JS		 7766 if (vectors > 1)
7767 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7768 &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
7769 LPFC_SP_DRIVER_HANDLER_NAME, phba);
7770 else
7771 /* All Interrupts need to be handled by one EQ */
7772 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7773 &lpfc_sli4_intr_handler, IRQF_SHARED,
7774 LPFC_DRIVER_NAME, phba);
da0436e9
JS		 7775 if (rc) {
7776 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7777 "0485 MSI-X slow-path request_irq failed "
7778 "(%d)\n", rc);
7779 goto msi_fail_out;
7780 }
7781
7782 /* The rest of the vector(s) are associated to fast-path handler(s) */
75baf696 7783 for (index = 1; index < vectors; index++) {
da0436e9
JS		 7784 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
7785 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
7786 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
7787 &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
7788 LPFC_FP_DRIVER_HANDLER_NAME,
7789 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7790 if (rc) {
7791 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7792 "0486 MSI-X fast-path (%d) "
7793 "request_irq failed (%d)\n", index, rc);
7794 goto cfg_fail_out;
7795 }
7796 }
75baf696 7797 phba->sli4_hba.msix_vec_nr = vectors;
da0436e9
JS		 7798
7799 return rc;
7800
7801cfg_fail_out:
7802 /* free the irq already requested */
7803 for (--index; index >= 1; index--)
7804 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
7805 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7806
7807 /* free the irq already requested */
7808 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7809
7810msi_fail_out:
7811 /* Unconfigure MSI-X capability structure */
7812 pci_disable_msix(phba->pcidev);
7813 return rc;
7814}
7815
7816/**
7817 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7818 * @phba: pointer to lpfc hba data structure.
7819 *
7820 * This routine is invoked to release the MSI-X vectors and then disable the
7821 * MSI-X interrupt mode to device with SLI-4 interface spec.
7822 **/
7823static void
7824lpfc_sli4_disable_msix(struct lpfc_hba *phba)
7825{
7826 int index;
7827
7828 /* Free up MSI-X multi-message vectors */
7829 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7830
75baf696 7831 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
da0436e9
JS		 7832 free_irq(phba->sli4_hba.msix_entries[index].vector,
7833 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
75baf696 7834
da0436e9
JS		 7835 /* Disable MSI-X */
7836 pci_disable_msix(phba->pcidev);
7837
7838 return;
7839}
7840
7841/**
7842 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7843 * @phba: pointer to lpfc hba data structure.
7844 *
7845 * This routine is invoked to enable the MSI interrupt mode to device with
7846 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7847 * to enable the MSI vector. The device driver is responsible for calling
7848 * the request_irq() to register MSI vector with a interrupt the handler,
7849 * which is done in this function.
7850 *
7851 * Return codes
af901ca1 7852 * 0 - successful
da0436e9
JS		 7853 * other values - error
7854 **/
7855static int
7856lpfc_sli4_enable_msi(struct lpfc_hba *phba)
7857{
7858 int rc, index;
7859
7860 rc = pci_enable_msi(phba->pcidev);
7861 if (!rc)
7862 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7863 "0487 PCI enable MSI mode success.\n");
7864 else {
7865 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7866 "0488 PCI enable MSI mode failed (%d)\n", rc);
7867 return rc;
7868 }
7869
7870 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7871 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7872 if (rc) {
7873 pci_disable_msi(phba->pcidev);
7874 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7875 "0490 MSI request_irq failed (%d)\n", rc);
75baf696 7876 return rc;
da0436e9
JS		 7877 }
7878
7879 for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
7880 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7881 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7882 }
7883
75baf696 7884 return 0;
da0436e9
JS		 7885}
7886
7887/**
7888 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7889 * @phba: pointer to lpfc hba data structure.
7890 *
7891 * This routine is invoked to disable the MSI interrupt mode to device with
7892 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7893 * done request_irq() on before calling pci_disable_msi(). Failure to do so
7894 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7895 * its vector.
7896 **/
7897static void
7898lpfc_sli4_disable_msi(struct lpfc_hba *phba)
7899{
7900 free_irq(phba->pcidev->irq, phba);
7901 pci_disable_msi(phba->pcidev);
7902 return;
7903}
7904
7905/**
7906 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7907 * @phba: pointer to lpfc hba data structure.
7908 *
7909 * This routine is invoked to enable device interrupt and associate driver's
7910 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7911 * interface spec. Depends on the interrupt mode configured to the driver,
7912 * the driver will try to fallback from the configured interrupt mode to an
7913 * interrupt mode which is supported by the platform, kernel, and device in
7914 * the order of:
7915 * MSI-X -> MSI -> IRQ.
7916 *
7917 * Return codes
af901ca1 7918 * 0 - successful
da0436e9
JS		 7919 * other values - error
7920 **/
7921static uint32_t
7922lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7923{
7924 uint32_t intr_mode = LPFC_INTR_ERROR;
7925 int retval, index;
7926
7927 if (cfg_mode == 2) {
7928 /* Preparation before conf_msi mbox cmd */
7929 retval = 0;
7930 if (!retval) {
7931 /* Now, try to enable MSI-X interrupt mode */
7932 retval = lpfc_sli4_enable_msix(phba);
7933 if (!retval) {
7934 /* Indicate initialization to MSI-X mode */
7935 phba->intr_type = MSIX;
7936 intr_mode = 2;
7937 }
7938 }
7939 }
7940
7941 /* Fallback to MSI if MSI-X initialization failed */
7942 if (cfg_mode >= 1 && phba->intr_type == NONE) {
7943 retval = lpfc_sli4_enable_msi(phba);
7944 if (!retval) {
7945 /* Indicate initialization to MSI mode */
7946 phba->intr_type = MSI;
7947 intr_mode = 1;
7948 }
7949 }
7950
7951 /* Fallback to INTx if both MSI-X/MSI initalization failed */
7952 if (phba->intr_type == NONE) {
7953 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7954 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7955 if (!retval) {
7956 /* Indicate initialization to INTx mode */
7957 phba->intr_type = INTx;
7958 intr_mode = 0;
7959 for (index = 0; index < phba->cfg_fcp_eq_count;
7960 index++) {
7961 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7962 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7963 }
7964 }
7965 }
7966 return intr_mode;
7967}
7968
7969/**
7970 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7971 * @phba: pointer to lpfc hba data structure.
7972 *
7973 * This routine is invoked to disable device interrupt and disassociate
7974 * the driver's interrupt handler(s) from interrupt vector(s) to device
7975 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7976 * will release the interrupt vector(s) for the message signaled interrupt.
7977 **/
7978static void
7979lpfc_sli4_disable_intr(struct lpfc_hba *phba)
7980{
7981 /* Disable the currently initialized interrupt mode */
7982 if (phba->intr_type == MSIX)
7983 lpfc_sli4_disable_msix(phba);
7984 else if (phba->intr_type == MSI)
7985 lpfc_sli4_disable_msi(phba);
7986 else if (phba->intr_type == INTx)
7987 free_irq(phba->pcidev->irq, phba);
7988
7989 /* Reset interrupt management states */
7990 phba->intr_type = NONE;
7991 phba->sli.slistat.sli_intr = 0;
7992
7993 return;
7994}
7995
7996/**
7997 * lpfc_unset_hba - Unset SLI3 hba device initialization
7998 * @phba: pointer to lpfc hba data structure.
7999 *
8000 * This routine is invoked to unset the HBA device initialization steps to
8001 * a device with SLI-3 interface spec.
8002 **/
8003static void
8004lpfc_unset_hba(struct lpfc_hba *phba)
8005{
8006 struct lpfc_vport *vport = phba->pport;
8007 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8008
8009 spin_lock_irq(shost->host_lock);
8010 vport->load_flag |= FC_UNLOADING;
8011 spin_unlock_irq(shost->host_lock);
8012
8013 lpfc_stop_hba_timers(phba);
8014
8015 phba->pport->work_port_events = 0;
8016
8017 lpfc_sli_hba_down(phba);
8018
8019 lpfc_sli_brdrestart(phba);
8020
8021 lpfc_sli_disable_intr(phba);
8022
8023 return;
8024}
8025
8026/**
8027 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
8028 * @phba: pointer to lpfc hba data structure.
8029 *
8030 * This routine is invoked to unset the HBA device initialization steps to
8031 * a device with SLI-4 interface spec.
8032 **/
8033static void
8034lpfc_sli4_unset_hba(struct lpfc_hba *phba)
8035{
8036 struct lpfc_vport *vport = phba->pport;
8037 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8038
8039 spin_lock_irq(shost->host_lock);
8040 vport->load_flag |= FC_UNLOADING;
8041 spin_unlock_irq(shost->host_lock);
8042
8043 phba->pport->work_port_events = 0;
8044
3677a3a7
JS		 8045 /* Stop the SLI4 device port */
8046 lpfc_stop_port(phba);
da0436e9
JS		 8047
8048 lpfc_sli4_disable_intr(phba);
8049
3677a3a7
JS		 8050 /* Reset SLI4 HBA FCoE function */
8051 lpfc_pci_function_reset(phba);
5350d872 8052 lpfc_sli4_queue_destroy(phba);
3677a3a7 8053
da0436e9
JS		 8054 return;
8055}
8056
5af5eee7
JS		 8057/**
8058 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
8059 * @phba: Pointer to HBA context object.
8060 *
8061 * This function is called in the SLI4 code path to wait for completion
8062 * of device's XRIs exchange busy. It will check the XRI exchange busy
8063 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
8064 * that, it will check the XRI exchange busy on outstanding FCP and ELS
8065 * I/Os every 30 seconds, log error message, and wait forever. Only when
8066 * all XRI exchange busy complete, the driver unload shall proceed with
8067 * invoking the function reset ioctl mailbox command to the CNA and the
8068 * the rest of the driver unload resource release.
8069 **/
8070static void
8071lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
8072{
8073 int wait_time = 0;
8074 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8075 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8076
8077 while (!fcp_xri_cmpl || !els_xri_cmpl) {
8078 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
8079 if (!fcp_xri_cmpl)
8080 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8081 "2877 FCP XRI exchange busy "
8082 "wait time: %d seconds.\n",
8083 wait_time/1000);
8084 if (!els_xri_cmpl)
8085 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8086 "2878 ELS XRI exchange busy "
8087 "wait time: %d seconds.\n",
8088 wait_time/1000);
8089 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
8090 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
8091 } else {
8092 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
8093 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
8094 }
8095 fcp_xri_cmpl =
8096 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8097 els_xri_cmpl =
8098 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8099 }
8100}
8101
da0436e9
JS		 8102/**
8103 * lpfc_sli4_hba_unset - Unset the fcoe hba
8104 * @phba: Pointer to HBA context object.
8105 *
8106 * This function is called in the SLI4 code path to reset the HBA's FCoE
8107 * function. The caller is not required to hold any lock. This routine
8108 * issues PCI function reset mailbox command to reset the FCoE function.
8109 * At the end of the function, it calls lpfc_hba_down_post function to
8110 * free any pending commands.
8111 **/
8112static void
8113lpfc_sli4_hba_unset(struct lpfc_hba *phba)
8114{
8115 int wait_cnt = 0;
8116 LPFC_MBOXQ_t *mboxq;
912e3acd 8117 struct pci_dev *pdev = phba->pcidev;
da0436e9
JS		 8118
8119 lpfc_stop_hba_timers(phba);
8120 phba->sli4_hba.intr_enable = 0;
8121
8122 /*
8123 * Gracefully wait out the potential current outstanding asynchronous
8124 * mailbox command.
8125 */
8126
8127 /* First, block any pending async mailbox command from posted */
8128 spin_lock_irq(&phba->hbalock);
8129 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8130 spin_unlock_irq(&phba->hbalock);
8131 /* Now, trying to wait it out if we can */
8132 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8133 msleep(10);
8134 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
8135 break;
8136 }
8137 /* Forcefully release the outstanding mailbox command if timed out */
8138 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8139 spin_lock_irq(&phba->hbalock);
8140 mboxq = phba->sli.mbox_active;
8141 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8142 __lpfc_mbox_cmpl_put(phba, mboxq);
8143 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8144 phba->sli.mbox_active = NULL;
8145 spin_unlock_irq(&phba->hbalock);
8146 }
8147
5af5eee7
JS		 8148 /* Abort all iocbs associated with the hba */
8149 lpfc_sli_hba_iocb_abort(phba);
8150
8151 /* Wait for completion of device XRI exchange busy */
8152 lpfc_sli4_xri_exchange_busy_wait(phba);
8153
da0436e9
JS		 8154 /* Disable PCI subsystem interrupt */
8155 lpfc_sli4_disable_intr(phba);
8156
912e3acd
JS		 8157 /* Disable SR-IOV if enabled */
8158 if (phba->cfg_sriov_nr_virtfn)
8159 pci_disable_sriov(pdev);
8160
da0436e9
JS		 8161 /* Stop kthread signal shall trigger work_done one more time */
8162 kthread_stop(phba->worker_thread);
8163
3677a3a7
JS		 8164 /* Reset SLI4 HBA FCoE function */
8165 lpfc_pci_function_reset(phba);
5350d872 8166 lpfc_sli4_queue_destroy(phba);
3677a3a7 8167
da0436e9
JS		 8168 /* Stop the SLI4 device port */
8169 phba->pport->work_port_events = 0;
8170}
8171
28baac74
JS		 8172 /**
8173 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
8174 * @phba: Pointer to HBA context object.
8175 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8176 *
8177 * This function is called in the SLI4 code path to read the port's
8178 * sli4 capabilities.
8179 *
8180 * This function may be be called from any context that can block-wait
8181 * for the completion. The expectation is that this routine is called
8182 * typically from probe_one or from the online routine.
8183 **/
8184int
8185lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8186{
8187 int rc;
8188 struct lpfc_mqe *mqe;
8189 struct lpfc_pc_sli4_params *sli4_params;
8190 uint32_t mbox_tmo;
8191
8192 rc = 0;
8193 mqe = &mboxq->u.mqe;
8194
8195 /* Read the port's SLI4 Parameters port capabilities */
fedd3b7b 8196 lpfc_pc_sli4_params(mboxq);
28baac74
JS		 8197 if (!phba->sli4_hba.intr_enable)
8198 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8199 else {
a183a15f 8200 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
28baac74
JS		 8201 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8202 }
8203
8204 if (unlikely(rc))
8205 return 1;
8206
8207 sli4_params = &phba->sli4_hba.pc_sli4_params;
8208 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
8209 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
8210 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
8211 sli4_params->featurelevel_1 = bf_get(featurelevel_1,
8212 &mqe->un.sli4_params);
8213 sli4_params->featurelevel_2 = bf_get(featurelevel_2,
8214 &mqe->un.sli4_params);
8215 sli4_params->proto_types = mqe->un.sli4_params.word3;
8216 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
8217 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
8218 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
8219 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
8220 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
8221 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
8222 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
8223 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
8224 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
8225 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
8226 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
8227 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
8228 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
8229 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
8230 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
8231 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
8232 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
8233 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
8234 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
8235 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
0558056c
JS		 8236
8237 /* Make sure that sge_supp_len can be handled by the driver */
8238 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8239 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8240
28baac74
JS		 8241 return rc;
8242}
8243
fedd3b7b
JS		 8244/**
8245 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
8246 * @phba: Pointer to HBA context object.
8247 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8248 *
8249 * This function is called in the SLI4 code path to read the port's
8250 * sli4 capabilities.
8251 *
8252 * This function may be be called from any context that can block-wait
8253 * for the completion. The expectation is that this routine is called
8254 * typically from probe_one or from the online routine.
8255 **/
8256int
8257lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8258{
8259 int rc;
8260 struct lpfc_mqe *mqe = &mboxq->u.mqe;
8261 struct lpfc_pc_sli4_params *sli4_params;
a183a15f 8262 uint32_t mbox_tmo;
fedd3b7b
JS		 8263 int length;
8264 struct lpfc_sli4_parameters *mbx_sli4_parameters;
8265
6d368e53
JS		 8266 /*
8267 * By default, the driver assumes the SLI4 port requires RPI
8268 * header postings. The SLI4_PARAM response will correct this
8269 * assumption.
8270 */
8271 phba->sli4_hba.rpi_hdrs_in_use = 1;
8272
fedd3b7b
JS		 8273 /* Read the port's SLI4 Config Parameters */
8274 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
8275 sizeof(struct lpfc_sli4_cfg_mhdr));
8276 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8277 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
8278 length, LPFC_SLI4_MBX_EMBED);
8279 if (!phba->sli4_hba.intr_enable)
8280 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
a183a15f
JS		 8281 else {
8282 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
8283 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8284 }
fedd3b7b
JS		 8285 if (unlikely(rc))
8286 return rc;
8287 sli4_params = &phba->sli4_hba.pc_sli4_params;
8288 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
8289 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
8290 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
8291 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
8292 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
8293 mbx_sli4_parameters);
8294 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
8295 mbx_sli4_parameters);
8296 if (bf_get(cfg_phwq, mbx_sli4_parameters))
8297 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
8298 else
8299 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
8300 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
8301 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
8302 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
8303 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
8304 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
8305 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
8306 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
8307 mbx_sli4_parameters);
8308 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
8309 mbx_sli4_parameters);
6d368e53
JS		 8310 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
8311 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
0558056c
JS		 8312
8313 /* Make sure that sge_supp_len can be handled by the driver */
8314 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8315 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8316
fedd3b7b
JS		 8317 return 0;
8318}
8319
da0436e9
JS		 8320/**
8321 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
8322 * @pdev: pointer to PCI device
8323 * @pid: pointer to PCI device identifier
8324 *
8325 * This routine is to be called to attach a device with SLI-3 interface spec
8326 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8327 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8328 * information of the device and driver to see if the driver state that it can
8329 * support this kind of device. If the match is successful, the driver core
8330 * invokes this routine. If this routine determines it can claim the HBA, it
8331 * does all the initialization that it needs to do to handle the HBA properly.
8332 *
8333 * Return code
8334 * 0 - driver can claim the device
8335 * negative value - driver can not claim the device
8336 **/
8337static int __devinit
8338lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
8339{
8340 struct lpfc_hba *phba;
8341 struct lpfc_vport *vport = NULL;
6669f9bb 8342 struct Scsi_Host *shost = NULL;
da0436e9
JS		 8343 int error;
8344 uint32_t cfg_mode, intr_mode;
8345
8346 /* Allocate memory for HBA structure */
8347 phba = lpfc_hba_alloc(pdev);
8348 if (!phba)
8349 return -ENOMEM;
8350
8351 /* Perform generic PCI device enabling operation */
8352 error = lpfc_enable_pci_dev(phba);
079b5c91 8353 if (error)
da0436e9 8354 goto out_free_phba;
da0436e9
JS		 8355
8356 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
8357 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
8358 if (error)
8359 goto out_disable_pci_dev;
8360
8361 /* Set up SLI-3 specific device PCI memory space */
8362 error = lpfc_sli_pci_mem_setup(phba);
8363 if (error) {
8364 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8365 "1402 Failed to set up pci memory space.\n");
8366 goto out_disable_pci_dev;
8367 }
8368
8369 /* Set up phase-1 common device driver resources */
8370 error = lpfc_setup_driver_resource_phase1(phba);
8371 if (error) {
8372 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8373 "1403 Failed to set up driver resource.\n");
8374 goto out_unset_pci_mem_s3;
8375 }
8376
8377 /* Set up SLI-3 specific device driver resources */
8378 error = lpfc_sli_driver_resource_setup(phba);
8379 if (error) {
8380 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8381 "1404 Failed to set up driver resource.\n");
8382 goto out_unset_pci_mem_s3;
8383 }
8384
8385 /* Initialize and populate the iocb list per host */
8386 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
8387 if (error) {
8388 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8389 "1405 Failed to initialize iocb list.\n");
8390 goto out_unset_driver_resource_s3;
8391 }
8392
8393 /* Set up common device driver resources */
8394 error = lpfc_setup_driver_resource_phase2(phba);
8395 if (error) {
8396 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8397 "1406 Failed to set up driver resource.\n");
8398 goto out_free_iocb_list;
8399 }
8400
079b5c91
JS		 8401 /* Get the default values for Model Name and Description */
8402 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
8403
da0436e9
JS		 8404 /* Create SCSI host to the physical port */
8405 error = lpfc_create_shost(phba);
8406 if (error) {
8407 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8408 "1407 Failed to create scsi host.\n");
8409 goto out_unset_driver_resource;
8410 }
8411
8412 /* Configure sysfs attributes */
8413 vport = phba->pport;
8414 error = lpfc_alloc_sysfs_attr(vport);
8415 if (error) {
8416 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8417 "1476 Failed to allocate sysfs attr\n");
8418 goto out_destroy_shost;
8419 }
8420
6669f9bb 8421 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
da0436e9
JS		 8422 /* Now, trying to enable interrupt and bring up the device */
8423 cfg_mode = phba->cfg_use_msi;
8424 while (true) {
8425 /* Put device to a known state before enabling interrupt */
8426 lpfc_stop_port(phba);
8427 /* Configure and enable interrupt */
8428 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
8429 if (intr_mode == LPFC_INTR_ERROR) {
8430 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8431 "0431 Failed to enable interrupt.\n");
8432 error = -ENODEV;
8433 goto out_free_sysfs_attr;
8434 }
8435 /* SLI-3 HBA setup */
8436 if (lpfc_sli_hba_setup(phba)) {
8437 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8438 "1477 Failed to set up hba\n");
8439 error = -ENODEV;
8440 goto out_remove_device;
8441 }
8442
8443 /* Wait 50ms for the interrupts of previous mailbox commands */
8444 msleep(50);
8445 /* Check active interrupts on message signaled interrupts */
8446 if (intr_mode == 0 ||
8447 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
8448 /* Log the current active interrupt mode */
8449 phba->intr_mode = intr_mode;
8450 lpfc_log_intr_mode(phba, intr_mode);
8451 break;
8452 } else {
8453 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8454 "0447 Configure interrupt mode (%d) "
8455 "failed active interrupt test.\n",
8456 intr_mode);
8457 /* Disable the current interrupt mode */
8458 lpfc_sli_disable_intr(phba);
8459 /* Try next level of interrupt mode */
8460 cfg_mode = --intr_mode;
8461 }
8462 }
8463
8464 /* Perform post initialization setup */
8465 lpfc_post_init_setup(phba);
8466
8467 /* Check if there are static vports to be created. */
8468 lpfc_create_static_vport(phba);
8469
8470 return 0;
8471
8472out_remove_device:
8473 lpfc_unset_hba(phba);
8474out_free_sysfs_attr:
8475 lpfc_free_sysfs_attr(vport);
8476out_destroy_shost:
8477 lpfc_destroy_shost(phba);
8478out_unset_driver_resource:
8479 lpfc_unset_driver_resource_phase2(phba);
8480out_free_iocb_list:
8481 lpfc_free_iocb_list(phba);
8482out_unset_driver_resource_s3:
8483 lpfc_sli_driver_resource_unset(phba);
8484out_unset_pci_mem_s3:
8485 lpfc_sli_pci_mem_unset(phba);
8486out_disable_pci_dev:
8487 lpfc_disable_pci_dev(phba);
6669f9bb
JS		 8488 if (shost)
8489 scsi_host_put(shost);
da0436e9
JS		 8490out_free_phba:
8491 lpfc_hba_free(phba);
8492 return error;
8493}
8494
8495/**
8496 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8497 * @pdev: pointer to PCI device
8498 *
8499 * This routine is to be called to disattach a device with SLI-3 interface
8500 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8501 * removed from PCI bus, it performs all the necessary cleanup for the HBA
8502 * device to be removed from the PCI subsystem properly.
8503 **/
8504static void __devexit
8505lpfc_pci_remove_one_s3(struct pci_dev *pdev)
8506{
8507 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8508 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8509 struct lpfc_vport **vports;
8510 struct lpfc_hba *phba = vport->phba;
8511 int i;
8512 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
8513
8514 spin_lock_irq(&phba->hbalock);
8515 vport->load_flag |= FC_UNLOADING;
8516 spin_unlock_irq(&phba->hbalock);
8517
8518 lpfc_free_sysfs_attr(vport);
8519
8520 /* Release all the vports against this physical port */
8521 vports = lpfc_create_vport_work_array(phba);
8522 if (vports != NULL)
8523 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8524 fc_vport_terminate(vports[i]->fc_vport);
8525 lpfc_destroy_vport_work_array(phba, vports);
8526
8527 /* Remove FC host and then SCSI host with the physical port */
8528 fc_remove_host(shost);
8529 scsi_remove_host(shost);
8530 lpfc_cleanup(vport);
8531
8532 /*
8533 * Bring down the SLI Layer. This step disable all interrupts,
8534 * clears the rings, discards all mailbox commands, and resets
8535 * the HBA.
8536 */
8537
48e34d0f 8538 /* HBA interrupt will be disabled after this call */
da0436e9
JS		 8539 lpfc_sli_hba_down(phba);
8540 /* Stop kthread signal shall trigger work_done one more time */
8541 kthread_stop(phba->worker_thread);
8542 /* Final cleanup of txcmplq and reset the HBA */
8543 lpfc_sli_brdrestart(phba);
8544
8545 lpfc_stop_hba_timers(phba);
8546 spin_lock_irq(&phba->hbalock);
8547 list_del_init(&vport->listentry);
8548 spin_unlock_irq(&phba->hbalock);
8549
8550 lpfc_debugfs_terminate(vport);
8551
912e3acd
JS		 8552 /* Disable SR-IOV if enabled */
8553 if (phba->cfg_sriov_nr_virtfn)
8554 pci_disable_sriov(pdev);
8555
da0436e9
JS		 8556 /* Disable interrupt */
8557 lpfc_sli_disable_intr(phba);
8558
8559 pci_set_drvdata(pdev, NULL);
8560 scsi_host_put(shost);
8561
8562 /*
8563 * Call scsi_free before mem_free since scsi bufs are released to their
8564 * corresponding pools here.
8565 */
8566 lpfc_scsi_free(phba);
8567 lpfc_mem_free_all(phba);
8568
8569 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
8570 phba->hbqslimp.virt, phba->hbqslimp.phys);
8571
8572 /* Free resources associated with SLI2 interface */
8573 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
8574 phba->slim2p.virt, phba->slim2p.phys);
8575
8576 /* unmap adapter SLIM and Control Registers */
8577 iounmap(phba->ctrl_regs_memmap_p);
8578 iounmap(phba->slim_memmap_p);
8579
8580 lpfc_hba_free(phba);
8581
8582 pci_release_selected_regions(pdev, bars);
8583 pci_disable_device(pdev);
8584}
8585
8586/**
8587 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
8588 * @pdev: pointer to PCI device
8589 * @msg: power management message
8590 *
8591 * This routine is to be called from the kernel's PCI subsystem to support
8592 * system Power Management (PM) to device with SLI-3 interface spec. When
8593 * PM invokes this method, it quiesces the device by stopping the driver's
8594 * worker thread for the device, turning off device's interrupt and DMA,
8595 * and bring the device offline. Note that as the driver implements the
8596 * minimum PM requirements to a power-aware driver's PM support for the
8597 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8598 * to the suspend() method call will be treated as SUSPEND and the driver will
8599 * fully reinitialize its device during resume() method call, the driver will
8600 * set device to PCI_D3hot state in PCI config space instead of setting it
8601 * according to the @msg provided by the PM.
8602 *
8603 * Return code
8604 * 0 - driver suspended the device
8605 * Error otherwise
8606 **/
8607static int
8608lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
8609{
8610 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8611 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8612
8613 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8614 "0473 PCI device Power Management suspend.\n");
8615
8616 /* Bring down the device */
8617 lpfc_offline_prep(phba);
8618 lpfc_offline(phba);
8619 kthread_stop(phba->worker_thread);
8620
8621 /* Disable interrupt from device */
8622 lpfc_sli_disable_intr(phba);
8623
8624 /* Save device state to PCI config space */
8625 pci_save_state(pdev);
8626 pci_set_power_state(pdev, PCI_D3hot);
8627
8628 return 0;
8629}
8630
8631/**
8632 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
8633 * @pdev: pointer to PCI device
8634 *
8635 * This routine is to be called from the kernel's PCI subsystem to support
8636 * system Power Management (PM) to device with SLI-3 interface spec. When PM
8637 * invokes this method, it restores the device's PCI config space state and
8638 * fully reinitializes the device and brings it online. Note that as the
8639 * driver implements the minimum PM requirements to a power-aware driver's
8640 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
8641 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
8642 * driver will fully reinitialize its device during resume() method call,
8643 * the device will be set to PCI_D0 directly in PCI config space before
8644 * restoring the state.
8645 *
8646 * Return code
8647 * 0 - driver suspended the device
8648 * Error otherwise
8649 **/
8650static int
8651lpfc_pci_resume_one_s3(struct pci_dev *pdev)
8652{
8653 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8654 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8655 uint32_t intr_mode;
8656 int error;
8657
8658 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8659 "0452 PCI device Power Management resume.\n");
8660
8661 /* Restore device state from PCI config space */
8662 pci_set_power_state(pdev, PCI_D0);
8663 pci_restore_state(pdev);
0d878419 8664
1dfb5a47
JS		 8665 /*
8666 * As the new kernel behavior of pci_restore_state() API call clears
8667 * device saved_state flag, need to save the restored state again.
8668 */
8669 pci_save_state(pdev);
8670
da0436e9
JS		 8671 if (pdev->is_busmaster)
8672 pci_set_master(pdev);
8673
8674 /* Startup the kernel thread for this host adapter. */
8675 phba->worker_thread = kthread_run(lpfc_do_work, phba,
8676 "lpfc_worker_%d", phba->brd_no);
8677 if (IS_ERR(phba->worker_thread)) {
8678 error = PTR_ERR(phba->worker_thread);
8679 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8680 "0434 PM resume failed to start worker "
8681 "thread: error=x%x.\n", error);
8682 return error;
8683 }
8684
8685 /* Configure and enable interrupt */
8686 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8687 if (intr_mode == LPFC_INTR_ERROR) {
8688 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8689 "0430 PM resume Failed to enable interrupt\n");
8690 return -EIO;
8691 } else
8692 phba->intr_mode = intr_mode;
8693
8694 /* Restart HBA and bring it online */
8695 lpfc_sli_brdrestart(phba);
8696 lpfc_online(phba);
8697
8698 /* Log the current active interrupt mode */
8699 lpfc_log_intr_mode(phba, phba->intr_mode);
8700
8701 return 0;
8702}
8703
891478a2
JS		 8704/**
8705 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
8706 * @phba: pointer to lpfc hba data structure.
8707 *
8708 * This routine is called to prepare the SLI3 device for PCI slot recover. It
e2af0d2e 8709 * aborts all the outstanding SCSI I/Os to the pci device.
891478a2
JS		 8710 **/
8711static void
8712lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
8713{
e2af0d2e
JS		 8714 struct lpfc_sli *psli = &phba->sli;
8715 struct lpfc_sli_ring *pring;
8716
891478a2
JS		 8717 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8718 "2723 PCI channel I/O abort preparing for recovery\n");
e2af0d2e
JS		 8719
8720 /*
8721 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8722 * and let the SCSI mid-layer to retry them to recover.
8723 */
8724 pring = &psli->ring[psli->fcp_ring];
8725 lpfc_sli_abort_iocb_ring(phba, pring);
891478a2
JS		 8726}
8727
0d878419
JS		 8728/**
8729 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
8730 * @phba: pointer to lpfc hba data structure.
8731 *
8732 * This routine is called to prepare the SLI3 device for PCI slot reset. It
8733 * disables the device interrupt and pci device, and aborts the internal FCP
8734 * pending I/Os.
8735 **/
8736static void
8737lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
8738{
0d878419 8739 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
891478a2 8740 "2710 PCI channel disable preparing for reset\n");
e2af0d2e 8741
75baf696
JS		 8742 /* Block any management I/Os to the device */
8743 lpfc_block_mgmt_io(phba);
8744
e2af0d2e
JS		 8745 /* Block all SCSI devices' I/Os on the host */
8746 lpfc_scsi_dev_block(phba);
8747
8748 /* stop all timers */
8749 lpfc_stop_hba_timers(phba);
8750
0d878419
JS		 8751 /* Disable interrupt and pci device */
8752 lpfc_sli_disable_intr(phba);
8753 pci_disable_device(phba->pcidev);
75baf696 8754
e2af0d2e
JS		 8755 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8756 lpfc_sli_flush_fcp_rings(phba);
0d878419
JS		 8757}
8758
8759/**
8760 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
8761 * @phba: pointer to lpfc hba data structure.
8762 *
8763 * This routine is called to prepare the SLI3 device for PCI slot permanently
8764 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8765 * pending I/Os.
8766 **/
8767static void
75baf696 8768lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
0d878419
JS		 8769{
8770 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
891478a2 8771 "2711 PCI channel permanent disable for failure\n");
e2af0d2e
JS		 8772 /* Block all SCSI devices' I/Os on the host */
8773 lpfc_scsi_dev_block(phba);
8774
8775 /* stop all timers */
8776 lpfc_stop_hba_timers(phba);
8777
0d878419
JS		 8778 /* Clean up all driver's outstanding SCSI I/Os */
8779 lpfc_sli_flush_fcp_rings(phba);
8780}
8781
da0436e9
JS		 8782/**
8783 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
8784 * @pdev: pointer to PCI device.
8785 * @state: the current PCI connection state.
8786 *
8787 * This routine is called from the PCI subsystem for I/O error handling to
8788 * device with SLI-3 interface spec. This function is called by the PCI
8789 * subsystem after a PCI bus error affecting this device has been detected.
8790 * When this function is invoked, it will need to stop all the I/Os and
8791 * interrupt(s) to the device. Once that is done, it will return
8792 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
8793 * as desired.
8794 *
8795 * Return codes
0d878419 8796 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
da0436e9
JS		 8797 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8798 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8799 **/
8800static pci_ers_result_t
8801lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
8802{
8803 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8804 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
da0436e9 8805
0d878419
JS		 8806 switch (state) {
8807 case pci_channel_io_normal:
891478a2
JS		 8808 /* Non-fatal error, prepare for recovery */
8809 lpfc_sli_prep_dev_for_recover(phba);
0d878419
JS		 8810 return PCI_ERS_RESULT_CAN_RECOVER;
8811 case pci_channel_io_frozen:
8812 /* Fatal error, prepare for slot reset */
8813 lpfc_sli_prep_dev_for_reset(phba);
8814 return PCI_ERS_RESULT_NEED_RESET;
8815 case pci_channel_io_perm_failure:
8816 /* Permanent failure, prepare for device down */
75baf696 8817 lpfc_sli_prep_dev_for_perm_failure(phba);
da0436e9 8818 return PCI_ERS_RESULT_DISCONNECT;
0d878419
JS		 8819 default:
8820 /* Unknown state, prepare and request slot reset */
8821 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8822 "0472 Unknown PCI error state: x%x\n", state);
8823 lpfc_sli_prep_dev_for_reset(phba);
8824 return PCI_ERS_RESULT_NEED_RESET;
da0436e9 8825 }
da0436e9
JS		 8826}
8827
8828/**
8829 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
8830 * @pdev: pointer to PCI device.
8831 *
8832 * This routine is called from the PCI subsystem for error handling to
8833 * device with SLI-3 interface spec. This is called after PCI bus has been
8834 * reset to restart the PCI card from scratch, as if from a cold-boot.
8835 * During the PCI subsystem error recovery, after driver returns
8836 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8837 * recovery and then call this routine before calling the .resume method
8838 * to recover the device. This function will initialize the HBA device,
8839 * enable the interrupt, but it will just put the HBA to offline state
8840 * without passing any I/O traffic.
8841 *
8842 * Return codes
8843 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
8844 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8845 */
8846static pci_ers_result_t
8847lpfc_io_slot_reset_s3(struct pci_dev *pdev)
8848{
8849 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8850 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8851 struct lpfc_sli *psli = &phba->sli;
8852 uint32_t intr_mode;
8853
8854 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
8855 if (pci_enable_device_mem(pdev)) {
8856 printk(KERN_ERR "lpfc: Cannot re-enable "
8857 "PCI device after reset.\n");
8858 return PCI_ERS_RESULT_DISCONNECT;
8859 }
8860
8861 pci_restore_state(pdev);
1dfb5a47
JS		 8862
8863 /*
8864 * As the new kernel behavior of pci_restore_state() API call clears
8865 * device saved_state flag, need to save the restored state again.
8866 */
8867 pci_save_state(pdev);
8868
da0436e9
JS		 8869 if (pdev->is_busmaster)
8870 pci_set_master(pdev);
8871
8872 spin_lock_irq(&phba->hbalock);
8873 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8874 spin_unlock_irq(&phba->hbalock);
8875
8876 /* Configure and enable interrupt */
8877 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8878 if (intr_mode == LPFC_INTR_ERROR) {
8879 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8880 "0427 Cannot re-enable interrupt after "
8881 "slot reset.\n");
8882 return PCI_ERS_RESULT_DISCONNECT;
8883 } else
8884 phba->intr_mode = intr_mode;
8885
75baf696
JS		 8886 /* Take device offline, it will perform cleanup */
8887 lpfc_offline_prep(phba);
da0436e9
JS		 8888 lpfc_offline(phba);
8889 lpfc_sli_brdrestart(phba);
8890
8891 /* Log the current active interrupt mode */
8892 lpfc_log_intr_mode(phba, phba->intr_mode);
8893
8894 return PCI_ERS_RESULT_RECOVERED;
8895}
8896
8897/**
8898 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
8899 * @pdev: pointer to PCI device
8900 *
8901 * This routine is called from the PCI subsystem for error handling to device
8902 * with SLI-3 interface spec. It is called when kernel error recovery tells
8903 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8904 * error recovery. After this call, traffic can start to flow from this device
8905 * again.
8906 */
8907static void
8908lpfc_io_resume_s3(struct pci_dev *pdev)
8909{
8910 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8911 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3772a991 8912
e2af0d2e 8913 /* Bring device online, it will be no-op for non-fatal error resume */
da0436e9 8914 lpfc_online(phba);
0d878419
JS		 8915
8916 /* Clean up Advanced Error Reporting (AER) if needed */
8917 if (phba->hba_flag & HBA_AER_ENABLED)
8918 pci_cleanup_aer_uncorrect_error_status(pdev);
da0436e9 8919}
3772a991 8920
da0436e9
JS		 8921/**
8922 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
8923 * @phba: pointer to lpfc hba data structure.
8924 *
8925 * returns the number of ELS/CT IOCBs to reserve
8926 **/
8927int
8928lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
8929{
8930 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
8931
f1126688
JS		 8932 if (phba->sli_rev == LPFC_SLI_REV4) {
8933 if (max_xri <= 100)
6a9c52cf 8934 return 10;
f1126688 8935 else if (max_xri <= 256)
6a9c52cf 8936 return 25;
f1126688 8937 else if (max_xri <= 512)
6a9c52cf 8938 return 50;
f1126688 8939 else if (max_xri <= 1024)
6a9c52cf 8940 return 100;
f1126688 8941 else
6a9c52cf 8942 return 150;
f1126688
JS		 8943 } else
8944 return 0;
3772a991
JS		 8945}
8946
52d52440
JS		 8947/**
8948 * lpfc_write_firmware - attempt to write a firmware image to the port
8949 * @phba: pointer to lpfc hba data structure.
8950 * @fw: pointer to firmware image returned from request_firmware.
8951 *
8952 * returns the number of bytes written if write is successful.
8953 * returns a negative error value if there were errors.
8954 * returns 0 if firmware matches currently active firmware on port.
8955 **/
8956int
8957lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw)
8958{
8959 char fwrev[32];
8960 struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data;
8961 struct list_head dma_buffer_list;
8962 int i, rc = 0;
8963 struct lpfc_dmabuf *dmabuf, *next;
8964 uint32_t offset = 0, temp_offset = 0;
8965
8966 INIT_LIST_HEAD(&dma_buffer_list);
079b5c91
JS		 8967 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
8968 (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
8969 LPFC_FILE_TYPE_GROUP) ||
8970 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
8971 (be32_to_cpu(image->size) != fw->size)) {
52d52440
JS		 8972 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8973 "3022 Invalid FW image found. "
079b5c91
JS		 8974 "Magic:%x Type:%x ID:%x\n",
8975 be32_to_cpu(image->magic_number),
8976 bf_get_be32(lpfc_grp_hdr_file_type, image),
8977 bf_get_be32(lpfc_grp_hdr_id, image));
52d52440
JS		 8978 return -EINVAL;
8979 }
8980 lpfc_decode_firmware_rev(phba, fwrev, 1);
88a2cfbb 8981 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
52d52440
JS		 8982 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8983 "3023 Updating Firmware. Current Version:%s "
8984 "New Version:%s\n",
88a2cfbb 8985 fwrev, image->revision);
52d52440
JS		 8986 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
8987 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
8988 GFP_KERNEL);
8989 if (!dmabuf) {
8990 rc = -ENOMEM;
8991 goto out;
8992 }
8993 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
8994 SLI4_PAGE_SIZE,
8995 &dmabuf->phys,
8996 GFP_KERNEL);
8997 if (!dmabuf->virt) {
8998 kfree(dmabuf);
8999 rc = -ENOMEM;
9000 goto out;
9001 }
9002 list_add_tail(&dmabuf->list, &dma_buffer_list);
9003 }
9004 while (offset < fw->size) {
9005 temp_offset = offset;
9006 list_for_each_entry(dmabuf, &dma_buffer_list, list) {
079b5c91 9007 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
52d52440
JS		 9008 memcpy(dmabuf->virt,
9009 fw->data + temp_offset,
079b5c91
JS		 9010 fw->size - temp_offset);
9011 temp_offset = fw->size;
52d52440
JS		 9012 break;
9013 }
52d52440
JS		 9014 memcpy(dmabuf->virt, fw->data + temp_offset,
9015 SLI4_PAGE_SIZE);
88a2cfbb 9016 temp_offset += SLI4_PAGE_SIZE;
52d52440
JS		 9017 }
9018 rc = lpfc_wr_object(phba, &dma_buffer_list,
9019 (fw->size - offset), &offset);
9020 if (rc) {
9021 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9022 "3024 Firmware update failed. "
9023 "%d\n", rc);
9024 goto out;
9025 }
9026 }
9027 rc = offset;
9028 }
9029out:
9030 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
9031 list_del(&dmabuf->list);
9032 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
9033 dmabuf->virt, dmabuf->phys);
9034 kfree(dmabuf);
9035 }
9036 return rc;
9037}
9038
3772a991 9039/**
da0436e9 9040 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
3772a991
JS		 9041 * @pdev: pointer to PCI device
9042 * @pid: pointer to PCI device identifier
9043 *
da0436e9
JS		 9044 * This routine is called from the kernel's PCI subsystem to device with
9045 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
3772a991 9046 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
da0436e9
JS		 9047 * information of the device and driver to see if the driver state that it
9048 * can support this kind of device. If the match is successful, the driver
9049 * core invokes this routine. If this routine determines it can claim the HBA,
9050 * it does all the initialization that it needs to do to handle the HBA
9051 * properly.
3772a991
JS		 9052 *
9053 * Return code
9054 * 0 - driver can claim the device
9055 * negative value - driver can not claim the device
9056 **/
9057static int __devinit
da0436e9 9058lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
3772a991
JS		 9059{
9060 struct lpfc_hba *phba;
9061 struct lpfc_vport *vport = NULL;
6669f9bb 9062 struct Scsi_Host *shost = NULL;
3772a991
JS		 9063 int error;
9064 uint32_t cfg_mode, intr_mode;
da0436e9 9065 int mcnt;
0558056c 9066 int adjusted_fcp_eq_count;
52d52440
JS		 9067 const struct firmware *fw;
9068 uint8_t file_name[16];
3772a991
JS		 9069
9070 /* Allocate memory for HBA structure */
9071 phba = lpfc_hba_alloc(pdev);
9072 if (!phba)
9073 return -ENOMEM;
9074
9075 /* Perform generic PCI device enabling operation */
9076 error = lpfc_enable_pci_dev(phba);
079b5c91 9077 if (error)
3772a991 9078 goto out_free_phba;
3772a991 9079
da0436e9
JS		 9080 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
9081 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
3772a991
JS		 9082 if (error)
9083 goto out_disable_pci_dev;
9084
da0436e9
JS		 9085 /* Set up SLI-4 specific device PCI memory space */
9086 error = lpfc_sli4_pci_mem_setup(phba);
3772a991
JS		 9087 if (error) {
9088 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9089 "1410 Failed to set up pci memory space.\n");
3772a991
JS		 9090 goto out_disable_pci_dev;
9091 }
9092
9093 /* Set up phase-1 common device driver resources */
9094 error = lpfc_setup_driver_resource_phase1(phba);
9095 if (error) {
9096 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 9097 "1411 Failed to set up driver resource.\n");
9098 goto out_unset_pci_mem_s4;
3772a991
JS		 9099 }
9100
da0436e9
JS		 9101 /* Set up SLI-4 Specific device driver resources */
9102 error = lpfc_sli4_driver_resource_setup(phba);
3772a991
JS		 9103 if (error) {
9104 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 9105 "1412 Failed to set up driver resource.\n");
9106 goto out_unset_pci_mem_s4;
3772a991
JS		 9107 }
9108
9109 /* Initialize and populate the iocb list per host */
2a9bf3d0
JS		 9110
9111 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9112 "2821 initialize iocb list %d.\n",
9113 phba->cfg_iocb_cnt*1024);
9114 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
9115
3772a991
JS		 9116 if (error) {
9117 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9
JS		 9118 "1413 Failed to initialize iocb list.\n");
9119 goto out_unset_driver_resource_s4;
3772a991
JS		 9120 }
9121
19ca7609 9122 INIT_LIST_HEAD(&phba->active_rrq_list);
7d791df7 9123 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
19ca7609 9124
3772a991
JS		 9125 /* Set up common device driver resources */
9126 error = lpfc_setup_driver_resource_phase2(phba);
9127 if (error) {
9128 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9129 "1414 Failed to set up driver resource.\n");
3772a991
JS		 9130 goto out_free_iocb_list;
9131 }
9132
079b5c91
JS		 9133 /* Get the default values for Model Name and Description */
9134 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9135
3772a991
JS		 9136 /* Create SCSI host to the physical port */
9137 error = lpfc_create_shost(phba);
9138 if (error) {
9139 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9140 "1415 Failed to create scsi host.\n");
3772a991
JS		 9141 goto out_unset_driver_resource;
9142 }
9399627f 9143
5b75da2f 9144 /* Configure sysfs attributes */
3772a991
JS		 9145 vport = phba->pport;
9146 error = lpfc_alloc_sysfs_attr(vport);
9147 if (error) {
9399627f 9148 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9149 "1416 Failed to allocate sysfs attr\n");
3772a991 9150 goto out_destroy_shost;
98c9ea5c 9151 }
875fbdfe 9152
6669f9bb 9153 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
3772a991 9154 /* Now, trying to enable interrupt and bring up the device */
5b75da2f
JS		 9155 cfg_mode = phba->cfg_use_msi;
9156 while (true) {
3772a991
JS		 9157 /* Put device to a known state before enabling interrupt */
9158 lpfc_stop_port(phba);
5b75da2f 9159 /* Configure and enable interrupt */
da0436e9 9160 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
5b75da2f
JS		 9161 if (intr_mode == LPFC_INTR_ERROR) {
9162 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9163 "0426 Failed to enable interrupt.\n");
3772a991 9164 error = -ENODEV;
5b75da2f
JS		 9165 goto out_free_sysfs_attr;
9166 }
0558056c 9167 /* Default to single EQ for non-MSI-X */
def9c7a9 9168 if (phba->intr_type != MSIX)
0558056c
JS		 9169 adjusted_fcp_eq_count = 0;
9170 else if (phba->sli4_hba.msix_vec_nr <
9171 phba->cfg_fcp_eq_count + 1)
9172 adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
9173 else
9174 adjusted_fcp_eq_count = phba->cfg_fcp_eq_count;
0558056c 9175 phba->cfg_fcp_eq_count = adjusted_fcp_eq_count;
da0436e9
JS		 9176 /* Set up SLI-4 HBA */
9177 if (lpfc_sli4_hba_setup(phba)) {
5b75da2f 9178 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9179 "1421 Failed to set up hba\n");
5b75da2f 9180 error = -ENODEV;
da0436e9 9181 goto out_disable_intr;
5b75da2f
JS		 9182 }
9183
da0436e9
JS		 9184 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
9185 if (intr_mode != 0)
9186 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
9187 LPFC_ACT_INTR_CNT);
9188
9189 /* Check active interrupts received only for MSI/MSI-X */
3772a991 9190 if (intr_mode == 0 ||
da0436e9 9191 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
5b75da2f
JS		 9192 /* Log the current active interrupt mode */
9193 phba->intr_mode = intr_mode;
9194 lpfc_log_intr_mode(phba, intr_mode);
9195 break;
5b75da2f 9196 }
da0436e9
JS		 9197 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9198 "0451 Configure interrupt mode (%d) "
9199 "failed active interrupt test.\n",
9200 intr_mode);
2fcee4bf
JS		 9201 /* Unset the previous SLI-4 HBA setup. */
9202 /*
9203 * TODO: Is this operation compatible with IF TYPE 2
9204 * devices? All port state is deleted and cleared.
9205 */
da0436e9
JS		 9206 lpfc_sli4_unset_hba(phba);
9207 /* Try next level of interrupt mode */
9208 cfg_mode = --intr_mode;
98c9ea5c 9209 }
858c9f6c 9210
3772a991
JS		 9211 /* Perform post initialization setup */
9212 lpfc_post_init_setup(phba);
dea3101e 9213
026abb87
JS		 9214 /* check for firmware upgrade or downgrade (if_type 2 only) */
9215 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
9216 LPFC_SLI_INTF_IF_TYPE_2) {
9217 snprintf(file_name, 16, "%s.grp", phba->ModelName);
9218 error = request_firmware(&fw, file_name, &phba->pcidev->dev);
9219 if (!error) {
9220 lpfc_write_firmware(phba, fw);
9221 release_firmware(fw);
9222 }
52d52440
JS		 9223 }
9224
1c6834a7
JS		 9225 /* Check if there are static vports to be created. */
9226 lpfc_create_static_vport(phba);
dea3101e 9227 return 0;
9228
da0436e9
JS		 9229out_disable_intr:
9230 lpfc_sli4_disable_intr(phba);
5b75da2f
JS		 9231out_free_sysfs_attr:
9232 lpfc_free_sysfs_attr(vport);
3772a991
JS		 9233out_destroy_shost:
9234 lpfc_destroy_shost(phba);
9235out_unset_driver_resource:
9236 lpfc_unset_driver_resource_phase2(phba);
9237out_free_iocb_list:
9238 lpfc_free_iocb_list(phba);
da0436e9
JS		 9239out_unset_driver_resource_s4:
9240 lpfc_sli4_driver_resource_unset(phba);
9241out_unset_pci_mem_s4:
9242 lpfc_sli4_pci_mem_unset(phba);
3772a991
JS		 9243out_disable_pci_dev:
9244 lpfc_disable_pci_dev(phba);
6669f9bb
JS		 9245 if (shost)
9246 scsi_host_put(shost);
2e0fef85 9247out_free_phba:
3772a991 9248 lpfc_hba_free(phba);
dea3101e 9249 return error;
9250}
9251
e59058c4 9252/**
da0436e9 9253 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
e59058c4
JS		 9254 * @pdev: pointer to PCI device
9255 *
da0436e9
JS		 9256 * This routine is called from the kernel's PCI subsystem to device with
9257 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
3772a991
JS		 9258 * removed from PCI bus, it performs all the necessary cleanup for the HBA
9259 * device to be removed from the PCI subsystem properly.
e59058c4 9260 **/
dea3101e 9261static void __devexit
da0436e9 9262lpfc_pci_remove_one_s4(struct pci_dev *pdev)
dea3101e 9263{
da0436e9 9264 struct Scsi_Host *shost = pci_get_drvdata(pdev);
2e0fef85 9265 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
eada272d 9266 struct lpfc_vport **vports;
da0436e9 9267 struct lpfc_hba *phba = vport->phba;
eada272d 9268 int i;
8a4df120 9269
da0436e9 9270 /* Mark the device unloading flag */
549e55cd 9271 spin_lock_irq(&phba->hbalock);
51ef4c26 9272 vport->load_flag |= FC_UNLOADING;
549e55cd 9273 spin_unlock_irq(&phba->hbalock);
2e0fef85 9274
da0436e9 9275 /* Free the HBA sysfs attributes */
858c9f6c
JS		 9276 lpfc_free_sysfs_attr(vport);
9277
eada272d
JS		 9278 /* Release all the vports against this physical port */
9279 vports = lpfc_create_vport_work_array(phba);
9280 if (vports != NULL)
3772a991 9281 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
eada272d
JS		 9282 fc_vport_terminate(vports[i]->fc_vport);
9283 lpfc_destroy_vport_work_array(phba, vports);
9284
9285 /* Remove FC host and then SCSI host with the physical port */
858c9f6c
JS		 9286 fc_remove_host(shost);
9287 scsi_remove_host(shost);
da0436e9
JS		 9288
9289 /* Perform cleanup on the physical port */
87af33fe
JS		 9290 lpfc_cleanup(vport);
9291
2e0fef85 9292 /*
da0436e9 9293 * Bring down the SLI Layer. This step disables all interrupts,
2e0fef85 9294 * clears the rings, discards all mailbox commands, and resets
da0436e9 9295 * the HBA FCoE function.
2e0fef85 9296 */
da0436e9
JS		 9297 lpfc_debugfs_terminate(vport);
9298 lpfc_sli4_hba_unset(phba);
a257bf90 9299
858c9f6c
JS		 9300 spin_lock_irq(&phba->hbalock);
9301 list_del_init(&vport->listentry);
9302 spin_unlock_irq(&phba->hbalock);
9303
3677a3a7 9304 /* Perform scsi free before driver resource_unset since scsi
da0436e9 9305 * buffers are released to their corresponding pools here.
2e0fef85
JS		 9306 */
9307 lpfc_scsi_free(phba);
da0436e9 9308 lpfc_sli4_driver_resource_unset(phba);
ed957684 9309
da0436e9
JS		 9310 /* Unmap adapter Control and Doorbell registers */
9311 lpfc_sli4_pci_mem_unset(phba);
2e0fef85 9312
da0436e9
JS		 9313 /* Release PCI resources and disable device's PCI function */
9314 scsi_host_put(shost);
9315 lpfc_disable_pci_dev(phba);
2e0fef85 9316
da0436e9 9317 /* Finally, free the driver's device data structure */
3772a991 9318 lpfc_hba_free(phba);
2e0fef85 9319
da0436e9 9320 return;
dea3101e 9321}
9322
3a55b532 9323/**
da0436e9 9324 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
3a55b532
JS		 9325 * @pdev: pointer to PCI device
9326 * @msg: power management message
9327 *
da0436e9
JS		 9328 * This routine is called from the kernel's PCI subsystem to support system
9329 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
9330 * this method, it quiesces the device by stopping the driver's worker
9331 * thread for the device, turning off device's interrupt and DMA, and bring
9332 * the device offline. Note that as the driver implements the minimum PM
9333 * requirements to a power-aware driver's PM support for suspend/resume -- all
9334 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
9335 * method call will be treated as SUSPEND and the driver will fully
9336 * reinitialize its device during resume() method call, the driver will set
9337 * device to PCI_D3hot state in PCI config space instead of setting it
3772a991 9338 * according to the @msg provided by the PM.
3a55b532
JS		 9339 *
9340 * Return code
3772a991
JS		 9341 * 0 - driver suspended the device
9342 * Error otherwise
3a55b532
JS		 9343 **/
9344static int
da0436e9 9345lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
3a55b532
JS		 9346{
9347 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9348 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9349
9350 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
75baf696 9351 "2843 PCI device Power Management suspend.\n");
3a55b532
JS		 9352
9353 /* Bring down the device */
9354 lpfc_offline_prep(phba);
9355 lpfc_offline(phba);
9356 kthread_stop(phba->worker_thread);
9357
9358 /* Disable interrupt from device */
da0436e9 9359 lpfc_sli4_disable_intr(phba);
5350d872 9360 lpfc_sli4_queue_destroy(phba);
3a55b532
JS		 9361
9362 /* Save device state to PCI config space */
9363 pci_save_state(pdev);
9364 pci_set_power_state(pdev, PCI_D3hot);
9365
9366 return 0;
9367}
9368
9369/**
da0436e9 9370 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
3a55b532
JS		 9371 * @pdev: pointer to PCI device
9372 *
da0436e9
JS		 9373 * This routine is called from the kernel's PCI subsystem to support system
9374 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
9375 * this method, it restores the device's PCI config space state and fully
9376 * reinitializes the device and brings it online. Note that as the driver
9377 * implements the minimum PM requirements to a power-aware driver's PM for
9378 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9379 * to the suspend() method call will be treated as SUSPEND and the driver
9380 * will fully reinitialize its device during resume() method call, the device
9381 * will be set to PCI_D0 directly in PCI config space before restoring the
9382 * state.
3a55b532
JS		 9383 *
9384 * Return code
3772a991
JS		 9385 * 0 - driver suspended the device
9386 * Error otherwise
3a55b532
JS		 9387 **/
9388static int
da0436e9 9389lpfc_pci_resume_one_s4(struct pci_dev *pdev)
3a55b532
JS		 9390{
9391 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9392 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
5b75da2f 9393 uint32_t intr_mode;
3a55b532
JS		 9394 int error;
9395
9396 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
da0436e9 9397 "0292 PCI device Power Management resume.\n");
3a55b532
JS		 9398
9399 /* Restore device state from PCI config space */
9400 pci_set_power_state(pdev, PCI_D0);
9401 pci_restore_state(pdev);
1dfb5a47
JS		 9402
9403 /*
9404 * As the new kernel behavior of pci_restore_state() API call clears
9405 * device saved_state flag, need to save the restored state again.
9406 */
9407 pci_save_state(pdev);
9408
3a55b532
JS		 9409 if (pdev->is_busmaster)
9410 pci_set_master(pdev);
9411
da0436e9 9412 /* Startup the kernel thread for this host adapter. */
3a55b532
JS		 9413 phba->worker_thread = kthread_run(lpfc_do_work, phba,
9414 "lpfc_worker_%d", phba->brd_no);
9415 if (IS_ERR(phba->worker_thread)) {
9416 error = PTR_ERR(phba->worker_thread);
9417 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9418 "0293 PM resume failed to start worker "
3a55b532
JS		 9419 "thread: error=x%x.\n", error);
9420 return error;
9421 }
9422
5b75da2f 9423 /* Configure and enable interrupt */
da0436e9 9424 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
5b75da2f 9425 if (intr_mode == LPFC_INTR_ERROR) {
3a55b532 9426 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
da0436e9 9427 "0294 PM resume Failed to enable interrupt\n");
5b75da2f
JS		 9428 return -EIO;
9429 } else
9430 phba->intr_mode = intr_mode;
3a55b532
JS		 9431
9432 /* Restart HBA and bring it online */
9433 lpfc_sli_brdrestart(phba);
9434 lpfc_online(phba);
9435
5b75da2f
JS		 9436 /* Log the current active interrupt mode */
9437 lpfc_log_intr_mode(phba, phba->intr_mode);
9438
3a55b532
JS		 9439 return 0;
9440}
9441
75baf696
JS		 9442/**
9443 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
9444 * @phba: pointer to lpfc hba data structure.
9445 *
9446 * This routine is called to prepare the SLI4 device for PCI slot recover. It
9447 * aborts all the outstanding SCSI I/Os to the pci device.
9448 **/
9449static void
9450lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
9451{
9452 struct lpfc_sli *psli = &phba->sli;
9453 struct lpfc_sli_ring *pring;
9454
9455 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9456 "2828 PCI channel I/O abort preparing for recovery\n");
9457 /*
9458 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9459 * and let the SCSI mid-layer to retry them to recover.
9460 */
9461 pring = &psli->ring[psli->fcp_ring];
9462 lpfc_sli_abort_iocb_ring(phba, pring);
9463}
9464
9465/**
9466 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
9467 * @phba: pointer to lpfc hba data structure.
9468 *
9469 * This routine is called to prepare the SLI4 device for PCI slot reset. It
9470 * disables the device interrupt and pci device, and aborts the internal FCP
9471 * pending I/Os.
9472 **/
9473static void
9474lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
9475{
9476 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9477 "2826 PCI channel disable preparing for reset\n");
9478
9479 /* Block any management I/Os to the device */
9480 lpfc_block_mgmt_io(phba);
9481
9482 /* Block all SCSI devices' I/Os on the host */
9483 lpfc_scsi_dev_block(phba);
9484
9485 /* stop all timers */
9486 lpfc_stop_hba_timers(phba);
9487
9488 /* Disable interrupt and pci device */
9489 lpfc_sli4_disable_intr(phba);
5350d872 9490 lpfc_sli4_queue_destroy(phba);
75baf696
JS		 9491 pci_disable_device(phba->pcidev);
9492
9493 /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9494 lpfc_sli_flush_fcp_rings(phba);
9495}
9496
9497/**
9498 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
9499 * @phba: pointer to lpfc hba data structure.
9500 *
9501 * This routine is called to prepare the SLI4 device for PCI slot permanently
9502 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9503 * pending I/Os.
9504 **/
9505static void
9506lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9507{
9508 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9509 "2827 PCI channel permanent disable for failure\n");
9510
9511 /* Block all SCSI devices' I/Os on the host */
9512 lpfc_scsi_dev_block(phba);
9513
9514 /* stop all timers */
9515 lpfc_stop_hba_timers(phba);
9516
9517 /* Clean up all driver's outstanding SCSI I/Os */
9518 lpfc_sli_flush_fcp_rings(phba);
9519}
9520
8d63f375 9521/**
da0436e9 9522 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
e59058c4
JS		 9523 * @pdev: pointer to PCI device.
9524 * @state: the current PCI connection state.
8d63f375 9525 *
da0436e9
JS		 9526 * This routine is called from the PCI subsystem for error handling to device
9527 * with SLI-4 interface spec. This function is called by the PCI subsystem
9528 * after a PCI bus error affecting this device has been detected. When this
9529 * function is invoked, it will need to stop all the I/Os and interrupt(s)
9530 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
9531 * for the PCI subsystem to perform proper recovery as desired.
e59058c4
JS		 9532 *
9533 * Return codes
3772a991
JS		 9534 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9535 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
e59058c4 9536 **/
3772a991 9537static pci_ers_result_t
da0436e9 9538lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
8d63f375 9539{
75baf696
JS		 9540 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9541 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9542
9543 switch (state) {
9544 case pci_channel_io_normal:
9545 /* Non-fatal error, prepare for recovery */
9546 lpfc_sli4_prep_dev_for_recover(phba);
9547 return PCI_ERS_RESULT_CAN_RECOVER;
9548 case pci_channel_io_frozen:
9549 /* Fatal error, prepare for slot reset */
9550 lpfc_sli4_prep_dev_for_reset(phba);
9551 return PCI_ERS_RESULT_NEED_RESET;
9552 case pci_channel_io_perm_failure:
9553 /* Permanent failure, prepare for device down */
9554 lpfc_sli4_prep_dev_for_perm_failure(phba);
9555 return PCI_ERS_RESULT_DISCONNECT;
9556 default:
9557 /* Unknown state, prepare and request slot reset */
9558 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9559 "2825 Unknown PCI error state: x%x\n", state);
9560 lpfc_sli4_prep_dev_for_reset(phba);
9561 return PCI_ERS_RESULT_NEED_RESET;
9562 }
8d63f375
LV		 9563}
9564
9565/**
da0436e9 9566 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
e59058c4
JS		 9567 * @pdev: pointer to PCI device.
9568 *
da0436e9
JS		 9569 * This routine is called from the PCI subsystem for error handling to device
9570 * with SLI-4 interface spec. It is called after PCI bus has been reset to
9571 * restart the PCI card from scratch, as if from a cold-boot. During the
9572 * PCI subsystem error recovery, after the driver returns
3772a991 9573 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
da0436e9
JS		 9574 * recovery and then call this routine before calling the .resume method to
9575 * recover the device. This function will initialize the HBA device, enable
9576 * the interrupt, but it will just put the HBA to offline state without
9577 * passing any I/O traffic.
8d63f375 9578 *
e59058c4 9579 * Return codes
3772a991
JS		 9580 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9581 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8d63f375 9582 */
3772a991 9583static pci_ers_result_t
da0436e9 9584lpfc_io_slot_reset_s4(struct pci_dev *pdev)
8d63f375 9585{
75baf696
JS		 9586 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9587 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9588 struct lpfc_sli *psli = &phba->sli;
9589 uint32_t intr_mode;
9590
9591 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9592 if (pci_enable_device_mem(pdev)) {
9593 printk(KERN_ERR "lpfc: Cannot re-enable "
9594 "PCI device after reset.\n");
9595 return PCI_ERS_RESULT_DISCONNECT;
9596 }
9597
9598 pci_restore_state(pdev);
0a96e975
JS		 9599
9600 /*
9601 * As the new kernel behavior of pci_restore_state() API call clears
9602 * device saved_state flag, need to save the restored state again.
9603 */
9604 pci_save_state(pdev);
9605
75baf696
JS		 9606 if (pdev->is_busmaster)
9607 pci_set_master(pdev);
9608
9609 spin_lock_irq(&phba->hbalock);
9610 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9611 spin_unlock_irq(&phba->hbalock);
9612
9613 /* Configure and enable interrupt */
9614 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9615 if (intr_mode == LPFC_INTR_ERROR) {
9616 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9617 "2824 Cannot re-enable interrupt after "
9618 "slot reset.\n");
9619 return PCI_ERS_RESULT_DISCONNECT;
9620 } else
9621 phba->intr_mode = intr_mode;
9622
9623 /* Log the current active interrupt mode */
9624 lpfc_log_intr_mode(phba, phba->intr_mode);
9625
8d63f375
LV		 9626 return PCI_ERS_RESULT_RECOVERED;
9627}
9628
9629/**
da0436e9 9630 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
e59058c4 9631 * @pdev: pointer to PCI device
8d63f375 9632 *
3772a991 9633 * This routine is called from the PCI subsystem for error handling to device
da0436e9 9634 * with SLI-4 interface spec. It is called when kernel error recovery tells
3772a991
JS		 9635 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9636 * error recovery. After this call, traffic can start to flow from this device
9637 * again.
da0436e9 9638 **/
3772a991 9639static void
da0436e9 9640lpfc_io_resume_s4(struct pci_dev *pdev)
8d63f375 9641{
75baf696
JS		 9642 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9643 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9644
9645 /*
9646 * In case of slot reset, as function reset is performed through
9647 * mailbox command which needs DMA to be enabled, this operation
9648 * has to be moved to the io resume phase. Taking device offline
9649 * will perform the necessary cleanup.
9650 */
9651 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
9652 /* Perform device reset */
9653 lpfc_offline_prep(phba);
9654 lpfc_offline(phba);
9655 lpfc_sli_brdrestart(phba);
9656 /* Bring the device back online */
9657 lpfc_online(phba);
9658 }
9659
9660 /* Clean up Advanced Error Reporting (AER) if needed */
9661 if (phba->hba_flag & HBA_AER_ENABLED)
9662 pci_cleanup_aer_uncorrect_error_status(pdev);
8d63f375
LV		 9663}
9664
3772a991
JS		 9665/**
9666 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
9667 * @pdev: pointer to PCI device
9668 * @pid: pointer to PCI device identifier
9669 *
9670 * This routine is to be registered to the kernel's PCI subsystem. When an
9671 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
9672 * at PCI device-specific information of the device and driver to see if the
9673 * driver state that it can support this kind of device. If the match is
9674 * successful, the driver core invokes this routine. This routine dispatches
9675 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
9676 * do all the initialization that it needs to do to handle the HBA device
9677 * properly.
9678 *
9679 * Return code
9680 * 0 - driver can claim the device
9681 * negative value - driver can not claim the device
9682 **/
9683static int __devinit
9684lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
9685{
9686 int rc;
8fa38513 9687 struct lpfc_sli_intf intf;
3772a991 9688
28baac74 9689 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
3772a991
JS		 9690 return -ENODEV;
9691
8fa38513 9692 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
28baac74 9693 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
da0436e9 9694 rc = lpfc_pci_probe_one_s4(pdev, pid);
8fa38513 9695 else
3772a991 9696 rc = lpfc_pci_probe_one_s3(pdev, pid);
8fa38513 9697
3772a991
JS		 9698 return rc;
9699}
9700
9701/**
9702 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
9703 * @pdev: pointer to PCI device
9704 *
9705 * This routine is to be registered to the kernel's PCI subsystem. When an
9706 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
9707 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
9708 * remove routine, which will perform all the necessary cleanup for the
9709 * device to be removed from the PCI subsystem properly.
9710 **/
9711static void __devexit
9712lpfc_pci_remove_one(struct pci_dev *pdev)
9713{
9714 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9715 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9716
9717 switch (phba->pci_dev_grp) {
9718 case LPFC_PCI_DEV_LP:
9719 lpfc_pci_remove_one_s3(pdev);
9720 break;
da0436e9
JS		 9721 case LPFC_PCI_DEV_OC:
9722 lpfc_pci_remove_one_s4(pdev);
9723 break;
3772a991
JS		 9724 default:
9725 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9726 "1424 Invalid PCI device group: 0x%x\n",
9727 phba->pci_dev_grp);
9728 break;
9729 }
9730 return;
9731}
9732
9733/**
9734 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
9735 * @pdev: pointer to PCI device
9736 * @msg: power management message
9737 *
9738 * This routine is to be registered to the kernel's PCI subsystem to support
9739 * system Power Management (PM). When PM invokes this method, it dispatches
9740 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
9741 * suspend the device.
9742 *
9743 * Return code
9744 * 0 - driver suspended the device
9745 * Error otherwise
9746 **/
9747static int
9748lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
9749{
9750 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9751 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9752 int rc = -ENODEV;
9753
9754 switch (phba->pci_dev_grp) {
9755 case LPFC_PCI_DEV_LP:
9756 rc = lpfc_pci_suspend_one_s3(pdev, msg);
9757 break;
da0436e9
JS		 9758 case LPFC_PCI_DEV_OC:
9759 rc = lpfc_pci_suspend_one_s4(pdev, msg);
9760 break;
3772a991
JS		 9761 default:
9762 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9763 "1425 Invalid PCI device group: 0x%x\n",
9764 phba->pci_dev_grp);
9765 break;
9766 }
9767 return rc;
9768}
9769
9770/**
9771 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
9772 * @pdev: pointer to PCI device
9773 *
9774 * This routine is to be registered to the kernel's PCI subsystem to support
9775 * system Power Management (PM). When PM invokes this method, it dispatches
9776 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
9777 * resume the device.
9778 *
9779 * Return code
9780 * 0 - driver suspended the device
9781 * Error otherwise
9782 **/
9783static int
9784lpfc_pci_resume_one(struct pci_dev *pdev)
9785{
9786 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9787 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9788 int rc = -ENODEV;
9789
9790 switch (phba->pci_dev_grp) {
9791 case LPFC_PCI_DEV_LP:
9792 rc = lpfc_pci_resume_one_s3(pdev);
9793 break;
da0436e9
JS		 9794 case LPFC_PCI_DEV_OC:
9795 rc = lpfc_pci_resume_one_s4(pdev);
9796 break;
3772a991
JS		 9797 default:
9798 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9799 "1426 Invalid PCI device group: 0x%x\n",
9800 phba->pci_dev_grp);
9801 break;
9802 }
9803 return rc;
9804}
9805
9806/**
9807 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
9808 * @pdev: pointer to PCI device.
9809 * @state: the current PCI connection state.
9810 *
9811 * This routine is registered to the PCI subsystem for error handling. This
9812 * function is called by the PCI subsystem after a PCI bus error affecting
9813 * this device has been detected. When this routine is invoked, it dispatches
9814 * the action to the proper SLI-3 or SLI-4 device error detected handling
9815 * routine, which will perform the proper error detected operation.
9816 *
9817 * Return codes
9818 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9819 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9820 **/
9821static pci_ers_result_t
9822lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9823{
9824 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9825 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9826 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9827
9828 switch (phba->pci_dev_grp) {
9829 case LPFC_PCI_DEV_LP:
9830 rc = lpfc_io_error_detected_s3(pdev, state);
9831 break;
da0436e9
JS		 9832 case LPFC_PCI_DEV_OC:
9833 rc = lpfc_io_error_detected_s4(pdev, state);
9834 break;
3772a991
JS		 9835 default:
9836 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9837 "1427 Invalid PCI device group: 0x%x\n",
9838 phba->pci_dev_grp);
9839 break;
9840 }
9841 return rc;
9842}
9843
9844/**
9845 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
9846 * @pdev: pointer to PCI device.
9847 *
9848 * This routine is registered to the PCI subsystem for error handling. This
9849 * function is called after PCI bus has been reset to restart the PCI card
9850 * from scratch, as if from a cold-boot. When this routine is invoked, it
9851 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
9852 * routine, which will perform the proper device reset.
9853 *
9854 * Return codes
9855 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
9856 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9857 **/
9858static pci_ers_result_t
9859lpfc_io_slot_reset(struct pci_dev *pdev)
9860{
9861 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9862 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9863 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9864
9865 switch (phba->pci_dev_grp) {
9866 case LPFC_PCI_DEV_LP:
9867 rc = lpfc_io_slot_reset_s3(pdev);
9868 break;
da0436e9
JS		 9869 case LPFC_PCI_DEV_OC:
9870 rc = lpfc_io_slot_reset_s4(pdev);
9871 break;
3772a991
JS		 9872 default:
9873 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9874 "1428 Invalid PCI device group: 0x%x\n",
9875 phba->pci_dev_grp);
9876 break;
9877 }
9878 return rc;
9879}
9880
9881/**
9882 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
9883 * @pdev: pointer to PCI device
9884 *
9885 * This routine is registered to the PCI subsystem for error handling. It
9886 * is called when kernel error recovery tells the lpfc driver that it is
9887 * OK to resume normal PCI operation after PCI bus error recovery. When
9888 * this routine is invoked, it dispatches the action to the proper SLI-3
9889 * or SLI-4 device io_resume routine, which will resume the device operation.
9890 **/
9891static void
9892lpfc_io_resume(struct pci_dev *pdev)
9893{
9894 struct Scsi_Host *shost = pci_get_drvdata(pdev);
9895 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9896
9897 switch (phba->pci_dev_grp) {
9898 case LPFC_PCI_DEV_LP:
9899 lpfc_io_resume_s3(pdev);
9900 break;
da0436e9
JS		 9901 case LPFC_PCI_DEV_OC:
9902 lpfc_io_resume_s4(pdev);
9903 break;
3772a991
JS		 9904 default:
9905 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9906 "1429 Invalid PCI device group: 0x%x\n",
9907 phba->pci_dev_grp);
9908 break;
9909 }
9910 return;
9911}
9912
dea3101e 9913static struct pci_device_id lpfc_id_table[] = {
9914 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
9915 PCI_ANY_ID, PCI_ANY_ID, },
06325e74
JSEC		 9916 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
9917 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9918 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
9919 PCI_ANY_ID, PCI_ANY_ID, },
9920 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
9921 PCI_ANY_ID, PCI_ANY_ID, },
9922 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
9923 PCI_ANY_ID, PCI_ANY_ID, },
9924 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
9925 PCI_ANY_ID, PCI_ANY_ID, },
9926 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
9927 PCI_ANY_ID, PCI_ANY_ID, },
9928 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
9929 PCI_ANY_ID, PCI_ANY_ID, },
9930 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
9931 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9932 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
9933 PCI_ANY_ID, PCI_ANY_ID, },
9934 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
9935 PCI_ANY_ID, PCI_ANY_ID, },
9936 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
9937 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9938 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
9939 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9940 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
9941 PCI_ANY_ID, PCI_ANY_ID, },
9942 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
9943 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9944 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
9945 PCI_ANY_ID, PCI_ANY_ID, },
9946 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
9947 PCI_ANY_ID, PCI_ANY_ID, },
9948 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
9949 PCI_ANY_ID, PCI_ANY_ID, },
84774a4d
JS		 9950 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
9951 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9952 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
9953 PCI_ANY_ID, PCI_ANY_ID, },
9954 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
9955 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 9956 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
9957 PCI_ANY_ID, PCI_ANY_ID, },
9958 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
9959 PCI_ANY_ID, PCI_ANY_ID, },
9960 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
9961 PCI_ANY_ID, PCI_ANY_ID, },
9962 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
9963 PCI_ANY_ID, PCI_ANY_ID, },
9964 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
9965 PCI_ANY_ID, PCI_ANY_ID, },
e4adb204
JSEC		 9966 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
9967 PCI_ANY_ID, PCI_ANY_ID, },
9968 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
9969 PCI_ANY_ID, PCI_ANY_ID, },
b87eab38
JS		 9970 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
9971 PCI_ANY_ID, PCI_ANY_ID, },
9972 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
9973 PCI_ANY_ID, PCI_ANY_ID, },
9974 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
9975 PCI_ANY_ID, PCI_ANY_ID, },
9976 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
9977 PCI_ANY_ID, PCI_ANY_ID, },
9978 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
9979 PCI_ANY_ID, PCI_ANY_ID, },
9980 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
9981 PCI_ANY_ID, PCI_ANY_ID, },
84774a4d
JS		 9982 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
9983 PCI_ANY_ID, PCI_ANY_ID, },
9984 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
9985 PCI_ANY_ID, PCI_ANY_ID, },
9986 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
9987 PCI_ANY_ID, PCI_ANY_ID, },
3772a991
JS		 9988 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
9989 PCI_ANY_ID, PCI_ANY_ID, },
a747c9ce
JS		 9990 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
9991 PCI_ANY_ID, PCI_ANY_ID, },
9992 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
6669f9bb 9993 PCI_ANY_ID, PCI_ANY_ID, },
98fc5dd9
JS		 9994 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
9995 PCI_ANY_ID, PCI_ANY_ID, },
085c647c
JS		 9996 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
9997 PCI_ANY_ID, PCI_ANY_ID, },
9998 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
9999 PCI_ANY_ID, PCI_ANY_ID, },
c0c11512
JS		 10000 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
10001 PCI_ANY_ID, PCI_ANY_ID, },
10002 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
10003 PCI_ANY_ID, PCI_ANY_ID, },
dea3101e 10004 { 0 }
10005};
10006
10007MODULE_DEVICE_TABLE(pci, lpfc_id_table);
10008
8d63f375
LV		 10009static struct pci_error_handlers lpfc_err_handler = {
10010 .error_detected = lpfc_io_error_detected,
10011 .slot_reset = lpfc_io_slot_reset,
10012 .resume = lpfc_io_resume,
10013};
10014
dea3101e 10015static struct pci_driver lpfc_driver = {
10016 .name = LPFC_DRIVER_NAME,
10017 .id_table = lpfc_id_table,
10018 .probe = lpfc_pci_probe_one,
10019 .remove = __devexit_p(lpfc_pci_remove_one),
3a55b532 10020 .suspend = lpfc_pci_suspend_one,
3772a991 10021 .resume = lpfc_pci_resume_one,
2e0fef85 10022 .err_handler = &lpfc_err_handler,
dea3101e 10023};
10024
e59058c4 10025/**
3621a710 10026 * lpfc_init - lpfc module initialization routine
e59058c4
JS		 10027 *
10028 * This routine is to be invoked when the lpfc module is loaded into the
10029 * kernel. The special kernel macro module_init() is used to indicate the
10030 * role of this routine to the kernel as lpfc module entry point.
10031 *
10032 * Return codes
10033 * 0 - successful
10034 * -ENOMEM - FC attach transport failed
10035 * all others - failed
10036 */
dea3101e 10037static int __init
10038lpfc_init(void)
10039{
10040 int error = 0;
10041
10042 printk(LPFC_MODULE_DESC "\n");
c44ce173 10043 printk(LPFC_COPYRIGHT "\n");
dea3101e 10044
7ee5d43e
JS		 10045 if (lpfc_enable_npiv) {
10046 lpfc_transport_functions.vport_create = lpfc_vport_create;
10047 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
10048 }
dea3101e 10049 lpfc_transport_template =
10050 fc_attach_transport(&lpfc_transport_functions);
7ee5d43e 10051 if (lpfc_transport_template == NULL)
dea3101e 10052 return -ENOMEM;
7ee5d43e 10053 if (lpfc_enable_npiv) {
7ee5d43e 10054 lpfc_vport_transport_template =
98c9ea5c
JS		 10055 fc_attach_transport(&lpfc_vport_transport_functions);
10056 if (lpfc_vport_transport_template == NULL) {
10057 fc_release_transport(lpfc_transport_template);
7ee5d43e 10058 return -ENOMEM;
98c9ea5c 10059 }
7ee5d43e 10060 }
dea3101e 10061 error = pci_register_driver(&lpfc_driver);
92d7f7b0 10062 if (error) {
dea3101e 10063 fc_release_transport(lpfc_transport_template);
d7c255b2
JS		 10064 if (lpfc_enable_npiv)
10065 fc_release_transport(lpfc_vport_transport_template);
92d7f7b0 10066 }
dea3101e 10067
10068 return error;
10069}
10070
e59058c4 10071/**
3621a710 10072 * lpfc_exit - lpfc module removal routine
e59058c4
JS		 10073 *
10074 * This routine is invoked when the lpfc module is removed from the kernel.
10075 * The special kernel macro module_exit() is used to indicate the role of
10076 * this routine to the kernel as lpfc module exit point.
10077 */
dea3101e 10078static void __exit
10079lpfc_exit(void)
10080{
10081 pci_unregister_driver(&lpfc_driver);
10082 fc_release_transport(lpfc_transport_template);
7ee5d43e
JS		 10083 if (lpfc_enable_npiv)
10084 fc_release_transport(lpfc_vport_transport_template);
81301a9b 10085 if (_dump_buf_data) {
6a9c52cf
JS		 10086 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
10087 "_dump_buf_data at 0x%p\n",
81301a9b
JS		 10088 (1L << _dump_buf_data_order), _dump_buf_data);
10089 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
10090 }
10091
10092 if (_dump_buf_dif) {
6a9c52cf
JS		 10093 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
10094 "_dump_buf_dif at 0x%p\n",
81301a9b
JS		 10095 (1L << _dump_buf_dif_order), _dump_buf_dif);
10096 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
10097 }
dea3101e 10098}
10099
10100module_init(lpfc_init);
10101module_exit(lpfc_exit);
10102MODULE_LICENSE("GPL");
10103MODULE_DESCRIPTION(LPFC_MODULE_DESC);
10104MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
10105MODULE_VERSION("0:" LPFC_DRIVER_VERSION);
Linux kernel - Deliverables
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